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EP4447750B1 - Device for feeding bristle bundles for the production of bristle products, and bristle material production machine - Google Patents

Device for feeding bristle bundles for the production of bristle products, and bristle material production machine Download PDF

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Publication number
EP4447750B1
EP4447750B1 EP23704278.3A EP23704278A EP4447750B1 EP 4447750 B1 EP4447750 B1 EP 4447750B1 EP 23704278 A EP23704278 A EP 23704278A EP 4447750 B1 EP4447750 B1 EP 4447750B1
Authority
EP
European Patent Office
Prior art keywords
baffle plate
plate
baffle
flow
perforated
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP23704278.3A
Other languages
German (de)
French (fr)
Other versions
EP4447750A1 (en
Inventor
Bernd Stein
Benedikt RENZ
Fabian Matt
Christian Graf
Dirk Buchleither
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zahoransky AG
Original Assignee
Zahoransky AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zahoransky AG filed Critical Zahoransky AG
Publication of EP4447750A1 publication Critical patent/EP4447750A1/en
Application granted granted Critical
Publication of EP4447750B1 publication Critical patent/EP4447750B1/en
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Classifications

    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46D—MANUFACTURE OF BRUSHES
    • A46D3/00—Preparing, i.e. Manufacturing brush bodies
    • A46D3/08—Parts of brush-making machines
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46D—MANUFACTURE OF BRUSHES
    • A46D3/00—Preparing, i.e. Manufacturing brush bodies
    • A46D3/08—Parts of brush-making machines
    • A46D3/082—Magazines for bristles; Feeding bristles to magazines; Knot picking
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46D—MANUFACTURE OF BRUSHES
    • A46D1/00—Bristles; Selection of materials for bristles
    • A46D1/04—Preparing bristles
    • A46D1/055—Combing; Mixing; Sorting

Definitions

  • the invention relates to a device for feeding bristle bundles for the production of bristle products, in particular toothbrushes.
  • the device comprises at least one perforated plate with at least one perforated array of receiving holes into which the bristle bundles can be transported by means of a flow generated by negative pressure, and at least one impact plate arranged downstream of the perforated plate, wherein the impact plate comprises at least one impact surface as a stop for bristle bundles to be transported into the receiving holes of the perforated plate.
  • the invention also relates to a bristle product manufacturing machine, in particular a brush manufacturing machine, comprising such a device. Devices of the type mentioned above are previously known in practice in various embodiments.
  • the impact plates located downstream of the perforated plates have the task of stopping the bundles of bristles arriving at a comparatively high speed.
  • the baffle plates can be positioned directly behind the perforated plates and are only a few tenths of a millimeter apart. This creates lateral gaps between the baffle plates and the perforated plates, through which a negative pressure can act on the suction lines to generate a gas or air flow.
  • the baffle surfaces of the Baffle plates are often made of a close-meshed fabric so that part of the gas or air flow for sucking in the bristle bundles can flow through the fabric, i.e. through the baffle surface.
  • the object of the invention is therefore to simplify the feeding of bristle bundles for the production of bristle goods.
  • the aerodynamic shape of the baffle plate can reduce or even completely prevent the formation of turbulence in the flow or a break in the flow for transporting the bristle bundles into the receiving holes of the perforated plate.
  • the aerodynamic shape of the baffle plate comprises at least one streamlined section that is arranged downstream of the at least one baffle surface of the baffle plate in the flow direction.
  • the streamlined section that is arranged downstream of the at least one baffle surface of the baffle plate promotes the formation of a gas or air flow that is guided by a contour of the streamlined section such that Flow separation is avoided and turbulence is minimized.
  • the flow-optimized contour of the streamlined section can promote laminar flow when the bristle bundles are sucked into the perforated plate. Additional suction openings in the area of the impact surface, and in particular the previously mentioned fabric, can then be dispensed with.
  • the streamlined section with its flow-optimized contour can provide an impact plate that no longer has flow openings that are relatively easily clogged with contaminants.
  • the aerodynamic shape of the impact plate can comprise an impact surface that is adapted to the shape of a perforated field of the perforated plate.
  • the shape of the impact surface which in one embodiment of the device is adapted to the shape of the at least one perforated field of the perforated plate, makes it possible to reduce the distance taken by a flow, in particular a gas or air flow, from the receiving holes of the perforated plate past the impact plate through the device.
  • the shape of the at least one impact surface which is adapted to the shape of the at least one perforated field of the perforated plate, means that the flow needs to be deflected comparatively little, which helps prevent the previously mentioned flow separation or the formation of turbulence in the flow.
  • the at least one perforated field and the at least one impact surface can have the same shape, for example, be round or circular.
  • Turbulence in the flow can lead to contaminants, such as the grinding dust mentioned above, settling in certain areas of the device, for example in the area of the impact plate, and impairing the function of the device.
  • the perforated plate of the device can, for example, have at least two perforated fields with receiving holes. Furthermore, the impact plate can have a number of impact surfaces that corresponds to the number of perforated fields of the perforated plate. In this way, each perforated field of the perforated plate can be assigned a perforated surface of the impact plate.
  • Each impact surface of the impact plate can be followed by a streamlined section. Using such a streamlined section, the flow for sucking bristle bundles into the receiving holes of the perforated plate can be optimized for each hole field.
  • the at least one streamlined section of the impact plate can have a geometry that tapers in the flow direction, in particular conically or spherically. Such a geometry can promote the formation of a low-turbulence, preferably turbulence-free and/or laminar flow.
  • the impact plate has as few, preferably no sharp-edged transitions on surfaces that come into contact with the flow. It is particularly advantageous if the aerodynamic shape of the impact plate has a rounded transition between the at least one impact surface of the impact plate and the streamlined section of the impact plate. In this way, a sharp-edged The transition between the impact surface and the streamlined section of the impact plate, which can promote the development of turbulence in the flow, is avoided. This promotes the development of a low-turbulence or turbulence-free flow in the area of the transition between the impact surface and the streamlined section.
  • the aerodynamic shape of the impact plate has a constriction between two adjacent impact surfaces of the impact plate.
  • the constriction can be contained in a cross-section of the impact plate that contains the two adjacent impact surfaces of the impact plate. In the area of the constriction, there is thus no material of the impact plate present that would hinder the formation of the preferably laminar flow for transporting the bristle bundles into the receiving holes of the perforated plate.
  • the aerodynamic shape of the impact plate can include rounded contours between adjacent impact surfaces, for example in the area of a constriction, as previously explained, in order to avoid sharp-edged transitions or geometries.
  • the at least one streamlined section may have a mirror-symmetrical longitudinal section and/or be rotationally symmetrical.
  • the at least one streamlined section can have a longitudinal section delimited by several curved lines.
  • Two curved lines which can each be arranged on different sides of a central axis of the longitudinal section, can be connected to one another on a side of the impact plate facing away from the impact surface.
  • the curved lines can each run around a center point located outside the impact plate.
  • the two curved lines thus have a comparatively large radius, which can promote the streamlined shape of the streamlined section.
  • the streamlined section can have a drop-shaped or egg-shaped geometry when viewed in longitudinal section.
  • a longitudinal section of the streamlined section may have a rounded end facing away from the impact surface. This avoids a sharp edge or point at the end of the streamlined section, which in turn promotes the formation of low-turbulence or turbulence-free flow around the streamlined section.
  • the baffle plate can have at least one flow-guiding structure.
  • the at least one flow-guiding structure can be formed at least partially on the at least one streamlined section.
  • the at least one flow-guiding structure can also promote the formation of a low-turbulence or turbulence-free, preferably laminar flow.
  • the baffle plate has at least one flow channel as a flow-guiding structure.
  • a flow channel can be formed, for example, on an outer side of the section. The flow channel can then be referred to as a flow groove.
  • the baffle plate has at least one flow channel as a flow-guiding structure that passes through the baffle plate, preferably the streamlined section of the baffle plate. Such a flow channel can be divided into two or more subchannels and/or exit at a rear side of the baffle plate facing away from the impact surface.
  • the at least one impact surface of the impact plate can have at least one inlet opening into a flow channel of the impact plate.
  • a negative pressure is applied close to the receiving holes of the perforated plate to create a flow for transporting the bristle bundles into the receiving holes of the perforated plate.
  • An inlet opening arranged in this way in the impact surface offset from the receiving holes of the perforated plate does not then have to be covered with a close-meshed fabric to prevent bristle filaments from being sucked in.
  • the inlet opening can be comparatively large, which can counteract clogging of the inlet opening by dirt.
  • the impact surface of the impact plate is perforated.
  • the impact surface can have at least one flow opening, preferably a bore, particularly preferably a laser bore.
  • the device may further comprise a housing with a receptacle for the impact plate.
  • the housing and its receptacle can then serve as a suction bell, to which the negative pressure can be applied to transport the bristle bundles into the receiving holes of the perforated plate.
  • the housing receptacle may have a streamlined inner contour corresponding to at least one streamlined section.
  • the inner contour can be kept as free as possible from sharp edges and/or transitions. This helps prevent turbulence during flow through the receptacle and improves the aerodynamics within the device, which is beneficial for the device's function.
  • the housing may have at least one flow channel oriented in the direction of a longitudinal axis of the impact plate and/or at least one flow channel oriented transversely to a longitudinal axis of the impact plate.
  • the flow channels may be defined by the inner contour of the receptacle and/or the outer contour of the impact plate, in particular by the outer contour of the streamlined section.
  • the impact plate may have at least one fixing means, for example, at least one holding magnet, with which the impact plate can be secured, for example, in a housing.
  • the fixing means may facilitate easy, preferably tool-free, replacement of the impact plate.
  • the housing and the impact plate can be made from one piece and/or form a materially homogeneous, monolithic unit.
  • the impact plate and/or the Housings, in particular the at least one streamlined section of the impact plate and/or the housing receptacle, can be manufactured using an additive manufacturing process.
  • the use of an additive manufacturing process to produce the comparatively complex geometries of the impact plate and/or the housing can reduce the manufacturing costs of the impact plate and/or the housing.
  • the device can have a suction line for each receiving hole in the perforated plate.
  • a vacuum can be applied via the suction line to suck in the bristle bundles.
  • the suction lines can open into the receiving holes in the perforated plate.
  • Each receiving hole is preferably connected to a suction line. Individual or multiple suction lines can be combined into a common suction line. This can be advantageous for joining bristle bundles from sub-bundles during their transport into the perforated plate.
  • the device can be connected to a vacuum source and/or have a vacuum source.
  • the vacuum generated by the vacuum source can act on the bristle bundles to be transported into the receiving holes of the perforated plate, thereby sucking them into the receiving holes of the perforated plate.
  • the outlet ends of the suction lines can be arranged or formed on a holding plate of the device.
  • the holding plate is then positioned upstream of the perforated plate in the transport direction of the bristle bundles.
  • a bristle goods manufacturing machine which has a device for feeding bristle bundles for the Manufacture of bristle goods according to one of the claims directed thereto.
  • Figure 1 shows at least parts of a bristle goods manufacturing machine, designated as a whole by 100, with a device, designated as a whole by 1, for feeding bristle bundles 2 for the production of bristle goods, in particular toothbrushes.
  • the device 1 has at least one perforated plate 3 and at least one impact plate 4.
  • the perforated plate 3 comprises at least one perforated field 5 of receiving holes 6, into which the bristle bundles 2 can be transported by means of a flow generated by negative pressure.
  • the impact plate 4 is arranged downstream of the perforated plate 3 in the transport direction of the bristle bundles 2 through the device 1.
  • the transport direction of the bristle bundles 2 and the flow through the device 1 for transporting the bristle bundles 2 into the receiving holes 6 of the perforated plate 3 are indicated by the arrows 19 in Figure 1 illustrated.
  • the impact plate 4 has at least one impact surface 7 for bristle bundles 2.
  • the impact surface 7 can be used to slow down the bristle bundles 2 sucked into the receiving holes 6 of the perforated plate 3.
  • the impact surface 7 thus serves as a stop for the bristle bundles 2.
  • FIGS 2-17 show different embodiments of baffle plates 4, which are used instead of the Figure 1 baffle plate 4 shown in section. All of the baffle plates 4 shown in the figures have an aerodynamic shape, which can favorably influence the flow for transporting the bristle bundles 2 into the receiving holes 6 of the perforated plates 3.
  • each of the baffle plates 4 has, for each of its baffle surfaces 7, a streamlined section 8 arranged downstream of the corresponding baffle surface 7.
  • Each of the baffle plates 4 shown in the figures further has baffle surfaces 7 whose shape is adapted to a shape of the perforated fields 5 of the perforated plates 3 assigned to the baffle plates 4.
  • the perforated fields 5 are round, preferably circular.
  • baffle plates 4 each have at least two perforated fields 5 with receiving holes 6.
  • the baffle plates 4 have a number of baffle surfaces 7 that corresponds to the number of perforated fields 5 of the perforated plates 3. This ensures that each perforated field 5 of the perforated plates 3 is assigned a baffle surface 7 of a baffle plate 4.
  • each impact surface 7 of a baffle plate 4 is followed by a streamlined section 8.
  • the streamlined sections 8 have a conical or spherical geometry tapering in the flow direction through the device 1.
  • the impact plates 4 have as few as possible, preferably no sharp-edged transitions on their surfaces that come into contact with the flow, especially those that are oriented transversely to the flow direction.
  • the figures further illustrate that the aerodynamic shapes of the impact plates 4 include rounded transitions 9 between the impact surfaces 7 and the streamlined sections 8 of the impact plate 4.
  • the Figures 2-17 show that the aerodynamic shape of the impact plates 4 includes a constriction 10 between the impact surfaces 7.
  • FIG 4 with a longitudinal section through a streamlined section 8 of the Figures 2-5
  • the baffle plate 4 shown in the drawing illustrates that the streamlined section 8 has a mirror-symmetrical longitudinal section and is also rotationally symmetrical.
  • These streamlined sections 8 each have a longitudinal section delimited by a plurality of curved lines 11, two of which are connected to one another on a side of the impact plate 4 facing away from the impact surface 7.
  • the curved lines 11 each extend around a center point located outside the respective impact plate 4. At their end facing away from the impact surface 7, the streamlined sections 8 are rounded.
  • FIGS. 6 and 7 and 8-11 are provided with flow-guiding structures 12 which promote the formation of a low-turbulence or turbulence-free flow around the baffle plate 4.
  • flow-guiding structures 12 are provided in the form of flow channels 13 introduced into the outside of the baffle plate 4.
  • the baffle plate 4 shown has flow-guiding structures 12 in the form of flow channels 13, which pass through the baffle plate 4 and the section 8 of the baffle plate 4. This is clearly visible in the sectional view of the baffle plate 4 according to Figure 11 to recognize.
  • a total of four inlet openings 14 are formed within the baffles 7 into a flow channel 13 of the baffle plate 4.
  • the flow channels 13 branch out into several sub-channels 15 as they extend towards a rear end of the baffle plate 4.
  • the inlet openings 14 are located in positions on the respective impact surface 7, which are offset from areas in which bristle bundles 2 hit the impact surfaces 7.
  • the inlet openings 14 are thus arranged offset from the receiving holes 6 of the perforated plates 3, so that vertical projections of the receiving holes 6 onto the impact surfaces 7 are positioned outside the inlet openings 14.
  • perforate the impact surfaces 7 of the impact plates 4 with flow openings.
  • holes preferably laser holes
  • the holes shown in the Figures 12-14 The embodiment of the impact plate 4 shown, which does not have a streamlined section 8 arranged downstream of the impact surfaces 7 of this impact plate 4, is suitable for such a perforation.
  • Such a perforation eliminates the need for a close-meshed fabric, which is often used on impact plates used in practice.
  • the Figures 1 and 15 to 17 show that the device 1 further comprises a housing 16 with a receptacle 17 for at least one impact plate 4.
  • the receptacle 17 has a streamlined inner contour formed corresponding to the at least one streamlined section 8.
  • the housing 16 is made from a single piece together with the two impact plates 4.
  • the housing 16 and impact plates 4 thus form a materially homogeneous, monolithic unit, which can be manufactured, for example, using an additive manufacturing process.
  • the housing 16 has a plurality of flow guide surfaces 29 within the receptacles 17 for the impact plates 4, which delimit and form the flow channels 27, 28 between the impact plates 4 and the inner contours of the receptacles 17.
  • the device 1 according to Figure 1 has a suction line 20 for each receiving hole 6 of the respective perforated plate 3. Furthermore, the device 1 according to Figure 1 equipped or connected to a vacuum source 21, the vacuum of which can be applied to the flow-conducting parts of the device 1, namely to the housing 16, the baffle plates 4, the perforated plates 3, the suction lines 20 and ultimately the bristle bundles 2 arranged therein.
  • a vacuum source 21 the vacuum of which can be applied to the flow-conducting parts of the device 1, namely to the housing 16, the baffle plates 4, the perforated plates 3, the suction lines 20 and ultimately the bristle bundles 2 arranged therein.
  • Outlet ends 22 of the suction lines 20 are attached to a holding plate 23 of the device 1.
  • the holding plate 23 is positioned upstream of the perforated plate 3.
  • device 1 The functioning of device 1 is as follows: By means of a bundle separator 24 of the device 1, bristle bundles 2 are separated from a supply 25 of loose bristle filaments and placed in the Figure 1 shown transfer position on the device 1.
  • the bristle bundles 2 still arranged in the bundle separator 24 are in the Figure 1 shown transfer position in front of the inlet openings of the suction lines 20 on a further holding plate 26 of the device 1, to which the suction lines 20 are fastened with their inlet ends.
  • the bristle bundles 2 held ready are moved according to the arrows 19 in Figure 1 , which symbolize the transport direction of the bristle bundles 2 through the device 1, are drawn into the suction lines 20 and transported into the receiving holes 6 of the perforated plate 3 by the flow generated by the negative pressure.
  • the bristle bundles 2 are decelerated by the impact plate 4 arranged behind the perforated plate 3. In doing so, the bristle bundles 2 hit the impact surface 7 of the perforated plate 3.
  • a flow generated by the vacuum source 21 is guided in such a way that turbulence is reduced or even completely avoided. This can promote the transport of the bristle bundles 2 into the receiving holes 6 of the perforated plate 3 and/or the reliable removal of contaminants, such as grinding dust, that may adhere to the bristle bundles 2.
  • Figure 1 shows that the vacuum source 21 via the receptacle 17 of the housing 16, the flow channels 27, 28, which the baffle plate 4 together with the inner contour of the receptacle 17 of the housing 16 form, the receiving holes 6 of the perforated plate 3 and the suction lines 20 are connected to the bristle bundles 2 located in the transfer position in such a way that the bristle bundles 2 can be sucked through the suction lines 20 into the receiving holes 6 of the perforated plate 3.
  • the bristle bundles 2 are braked by the impact surface 7 of the impact plate 4.
  • the invention relates to improvements in the technical field of the production of bristle articles 2.
  • a device 1 for feeding bristle bundles 2 for the production of bristle articles is proposed, which device has a baffle plate 4 with an aerodynamic shape.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Brushes (AREA)
  • Particle Accelerators (AREA)

Description

Die Erfindung betrifft eine Vorrichtung zur Zuführung von Borstenbündeln für die Herstellung von Borstenwaren, insbesondere von Zahnbürsten. Die Vorrichtung weist zumindest eine Lochplatte mit zumindest einem Lochfeld aus Aufnahmelöchern, in die die Borstenbündel mittels einer durch Unterdruck erzeugten Strömung transportierbar sind, und zumindest eine der Lochplatte nachgelagerte Prallplatte auf, wobei die Prallplatte zumindest eine Prallfläche als Anschlag für in die Aufnahmelöcher der Lochplatte zu transportierende Borstenbündel umfasst. Ferner betrifft die Erfindung auch eine Borstenwarenherstellungsmaschine, insbesondere eine Bürstenherstellungsmaschine, mit einer solchen Vorrichtung. Vorrichtungen der eingangsgenannten Art sind aus der Praxis in unterschiedlichen Ausführungsformen vorbekannt. Sie werden zur Zuführung von Borstenbündeln bei der Herstellung von Borstenwaren, wie beispielsweise Zahnbürsten, dazu verwendet, die zuvor aus einem Borstenvorrat abgeteilten Borstenbündel mittels eines Gas- oder Luftstromes per Unterdruck durch Saugleitungen, beispielsweise durch Schläuche, in Lochplatten zu transportieren. Das Dokument US2020383469 befasst sich mit einer Filament-Transportvorrichtung, bei der Filamente mittels eines Luftstroms durch Rohrelemente transportiert werden und an deren Ende eine aerodynamisch geformte Prallplatte vorgesehen ist, um die Filamente zu stoppen.The invention relates to a device for feeding bristle bundles for the production of bristle products, in particular toothbrushes. The device comprises at least one perforated plate with at least one perforated array of receiving holes into which the bristle bundles can be transported by means of a flow generated by negative pressure, and at least one impact plate arranged downstream of the perforated plate, wherein the impact plate comprises at least one impact surface as a stop for bristle bundles to be transported into the receiving holes of the perforated plate. Furthermore, the invention also relates to a bristle product manufacturing machine, in particular a brush manufacturing machine, comprising such a device. Devices of the type mentioned above are previously known in practice in various embodiments. They are used to feed bristle bundles in the production of bristle products, such as toothbrushes, to transport the bristle bundles, previously separated from a bristle supply, by means of a gas or air flow under negative pressure through suction lines, for example, through hoses, into perforated plates. The document US2020383469 deals with a filament transport device in which filaments are transported by means of an air stream through tube elements and at the end of which an aerodynamically shaped baffle plate is provided to stop the filaments.

Die den Lochplatten nachgelagerten Prallplatten haben dabei die Aufgabe, die mit vergleichsweise hoher Geschwindigkeit ankommenden Borstenbündel abzustoppen.The impact plates located downstream of the perforated plates have the task of stopping the bundles of bristles arriving at a comparatively high speed.

Die Prallplatten können unmittelbar hinter den Lochplatten angeordnet sein und nur wenige Zehntel Millimeter Abstand zu diesen aufweisen. Dadurch entstehen zwischen den Prallplatten und den Lochplatten seitliche Spalte, über die ein Unterdruck zur Erzeugung eines Gas- oder Luftstroms auf die Saugleitungen wirken kann. In der Praxis werden die Prallflächen der Prallplatten oftmals auch durch ein engmaschiges Gewebe gebildet, so dass ein Teil des Gas- oder Luftstromes zum Ansaugen der Borstenbündel durch das Gewebe hindurch, also durch die Prallfläche fließen kann.The baffle plates can be positioned directly behind the perforated plates and are only a few tenths of a millimeter apart. This creates lateral gaps between the baffle plates and the perforated plates, through which a negative pressure can act on the suction lines to generate a gas or air flow. In practice, the baffle surfaces of the Baffle plates are often made of a close-meshed fabric so that part of the gas or air flow for sucking in the bristle bundles can flow through the fabric, i.e. through the baffle surface.

Derartiges Gewebe kann sich mit der Zeit durch Verunreinigungen, beispielsweise durch Schleifstaub, zusetzen, die den Borstenfilamenten anhaften können, aus denen die Borstenbündel bestehen. Dies hat zur Folge, dass der Unterdruck in den Saugleitungen mit zunehmender Verunreinigung des Gewebes stetig geringer wird. Die Prallplatten müssen dann mittels Ultraschalls gereinigt oder ganz ausgetauscht werden.Over time, such fabrics can become clogged with contaminants, such as grinding dust, that can adhere to the bristle filaments that make up the bristle bundles. As a result, the negative pressure in the suction lines steadily decreases as the fabric becomes increasingly contaminated. The impact plates then need to be cleaned using ultrasound or replaced entirely.

Aufgabe der Erfindung ist es daher, die Zuführung von Borstenbündeln für die Herstellung von Borstenwaren zu vereinfachen.The object of the invention is therefore to simplify the feeding of bristle bundles for the production of bristle goods.

Zur Lösung dieser Aufgabe wird eine Vorrichtung mit den Merkmalen des unabhängigen Anspruchs vorgeschlagen, die insbesondere dadurch gekennzeichnet ist, dass die Prallplatte eine aerodynamische Form aufweist.To achieve this object, a device having the features of the independent claim is proposed, which is characterized in particular in that the impact plate has an aerodynamic shape.

Die aerodynamische Form der Prallplatte kann die Ausbildung von Turbulenzen in der Strömung oder ein Abreißen der Strömung zum Transport der Borstenbündel in die Aufnahmelöcher der Lochplatte reduzieren oder gar vollständig vermeiden.The aerodynamic shape of the baffle plate can reduce or even completely prevent the formation of turbulence in the flow or a break in the flow for transporting the bristle bundles into the receiving holes of the perforated plate.

Bei einer Ausführungsform der Vorrichtung ist vorgesehen, dass die aerodynamische Form der Prallplatte zumindest einen stromlinienförmigen Abschnitt umfasst, der der zumindest einen Prallfläche der Prallplatte in Strömungsrichtung nachgelagert ist. Der stromlinienförmige Abschnitt, der der zumindest einen Prallfläche der Prallplatte nachgelagert ist, begünstigt die Ausbildung eines Gas- oder Luftstromes, der durch eine Kontur des stromlinienförmigen Abschnitts derart geführt ist, dass ein Abreißen der Strömung vermieden wird und möglichst keine Turbulenzen entstehen. Die strömungsoptimierte Kontur des stromlinienförmigen Abschnitts kann hierbei eine laminare Strömung beim Ansaugen der Borstenbündel in die Lochplatte begünstigen. Zusätzliche Ansaugöffnungen im Bereich der Prallfläche und insbesondere das zuvor erwähnte Gewebe können dann entbehrlich sein. Durch den stromlinienförmigen Abschnitt mit seiner strömungsoptimierten Kontur kann eine Prallplatte bereitgestellt werden, die keine sich vergleichsweise leicht mit Verschmutzungen zusetzenden Strömungsöffnungen mehr aufweist.In one embodiment of the device, it is provided that the aerodynamic shape of the baffle plate comprises at least one streamlined section that is arranged downstream of the at least one baffle surface of the baffle plate in the flow direction. The streamlined section that is arranged downstream of the at least one baffle surface of the baffle plate promotes the formation of a gas or air flow that is guided by a contour of the streamlined section such that Flow separation is avoided and turbulence is minimized. The flow-optimized contour of the streamlined section can promote laminar flow when the bristle bundles are sucked into the perforated plate. Additional suction openings in the area of the impact surface, and in particular the previously mentioned fabric, can then be dispensed with. The streamlined section with its flow-optimized contour can provide an impact plate that no longer has flow openings that are relatively easily clogged with contaminants.

Die aerodynamische Form der Prallplatte kann eine Prallfläche umfassen, die an eine Form eines Lochfeldes der Lochplatte angepasst ist. Durch die Form der Prallfläche, die bei einer Ausführungsform der Vorrichtung an eine Form des zumindest einen Lochfeldes der Lochplatte angepasst ist, lässt sich eine Wegstrecke reduzieren, die eine Strömung, insbesondere eine Gas- oder Luftströmung, von den Aufnahmelöchern der Lochplatte an der Prallplatte vorbei durch die Vorrichtung nimmt. Die Strömung muss durch die an die Formgebung des zumindest einen Lochfelds der Lochplatte angepasste Formgebung der zumindest einen Prallfläche vergleichsweise wenig umgelenkt werden, was den zuvor bereits erwähnten Strömungsabriss bzw. die Ausbildung von Turbulenzen in der Strömung vermeiden hilft. Das zumindest eine Lochfeld und die zumindest eine Prallfläche können dieselbe Form aufweisen, beispielsweise rund oder kreisrund sein.The aerodynamic shape of the impact plate can comprise an impact surface that is adapted to the shape of a perforated field of the perforated plate. The shape of the impact surface, which in one embodiment of the device is adapted to the shape of the at least one perforated field of the perforated plate, makes it possible to reduce the distance taken by a flow, in particular a gas or air flow, from the receiving holes of the perforated plate past the impact plate through the device. The shape of the at least one impact surface, which is adapted to the shape of the at least one perforated field of the perforated plate, means that the flow needs to be deflected comparatively little, which helps prevent the previously mentioned flow separation or the formation of turbulence in the flow. The at least one perforated field and the at least one impact surface can have the same shape, for example, be round or circular.

Turbulenzen in der Strömung können dazu führen, dass sich Verschmutzungen, wie der bereits zuvor erwähnte Schleifstaub, in bestimmten Bereichen der Vorrichtung, beispielsweise im Bereich der Prallplatte, absetzen und zu Beeinträchtigungen der Funktion der Vorrichtung führen.Turbulence in the flow can lead to contaminants, such as the grinding dust mentioned above, settling in certain areas of the device, for example in the area of the impact plate, and impairing the function of the device.

Durch eine möglichst turbulenzfreie oder laminare Strömung durch die Vorrichtung, wird der Abtransport derartiger Verschmutzungen verbessert, so dass eine Verunreinigung der Vorrichtung bei ihrem Betrieb weitgehend vermieden werden kann.By ensuring that the flow through the device is as turbulence-free or laminar as possible, the removal of such contaminants is improved, so that contamination of the device during operation can be largely avoided.

Die Lochplatte der Vorrichtung kann beispielsweise zumindest zwei Lochfelder mit Aufnahmelöchern aufweisen. Ferner kann die Prallplatte eine Anzahl von Prallflächen aufweisen, die mit der Anzahl von Lochfeldern der Lochplatte übereinstimmt. Auf diese Weise kann jedem Lochfeld der Lochplatte eine Prallfläche der Prallplatte zugeordnet sein.The perforated plate of the device can, for example, have at least two perforated fields with receiving holes. Furthermore, the impact plate can have a number of impact surfaces that corresponds to the number of perforated fields of the perforated plate. In this way, each perforated field of the perforated plate can be assigned a perforated surface of the impact plate.

Jeder Prallfläche der Prallplatte kann jeweils ein stromlinienförmiger Abschnitt nachgelagert sein. Mithilfe eines derartigen stromlinienförmigen Abschnitts kann die Strömung zum Ansaugen von Borstenbündeln in die Aufnahmelöcher der Lochplatte für jedes Lochfeld entsprechend optimiert geführt werden.Each impact surface of the impact plate can be followed by a streamlined section. Using such a streamlined section, the flow for sucking bristle bundles into the receiving holes of the perforated plate can be optimized for each hole field.

Der zumindest eine stromlinienförmige Abschnitt der Prallplatte kann eine sich in Strömungsrichtung, insbesondere konisch oder ballig, verjüngende Geometrie aufweisen. Eine derartige Geometrie kann die Ausbildung einer turbulenzarmen, vorzugsweise turbulenzfreien und/oder laminaren Strömung begünstigen.The at least one streamlined section of the impact plate can have a geometry that tapers in the flow direction, in particular conically or spherically. Such a geometry can promote the formation of a low-turbulence, preferably turbulence-free and/or laminar flow.

Grundsätzlich gilt, dass es vorteilhaft ist, wenn die Prallplatte an mit der Strömung in Kontakt kommenden Oberflächen möglichst wenige, vorzugsweise keine scharfkantigen Übergänge aufweist. Besonders vorteilhaft ist es, wenn die aerodynamische Form der Prallplatte einen abgerundeten Übergang zwischen der zumindest einen Prallfläche der Prallplatte und dem stromlinienförmigen Abschnitt der Prallplatte aufweist. Auf diese Weise wird ein scharfkantiger Übergang, der die Ausbildung von Turbulenzen in der Strömung begünstigen kann, zwischen Prallfläche und stromlinienförmigem Abschnitt der Prallplatte vermieden. Dies begünstigt die Ausbildung einer turbulenzarmen oder turbulenzfreien Strömung im Bereich des Übergangs zwischen Prallfläche und stromlinienförmigem Abschnitt.In principle, it is advantageous if the impact plate has as few, preferably no sharp-edged transitions on surfaces that come into contact with the flow. It is particularly advantageous if the aerodynamic shape of the impact plate has a rounded transition between the at least one impact surface of the impact plate and the streamlined section of the impact plate. In this way, a sharp-edged The transition between the impact surface and the streamlined section of the impact plate, which can promote the development of turbulence in the flow, is avoided. This promotes the development of a low-turbulence or turbulence-free flow in the area of the transition between the impact surface and the streamlined section.

Bei einer Ausführungsform der Prallplatte, weist die aerodynamische Form der Prallplatte eine Einschnürung zwischen zwei benachbarten Prallflächen der Prallplatte auf. Dabei kann die Einschnürung in einem Querschnitt der Prallplatte enthalten sein, der die beiden benachbarten Prallflächen der Prallplatte enthält. Im Bereich der Einschnürung ist somit kein Material der Prallplatte vorhanden, das die Ausbildung der vorzugsweise laminaren Strömung zum Transport der Borstenbündel in die Aufnahmelöcher der Lochplatte behindern würde. Die aerodynamische Form der Prallplatte kann zwischen benachbarten Prallflächen, beispielsweise im Bereich eine Einschnürung, wie sie zuvor erläutert wurde, abgerundete Konturen umfassen, um scharfkantige Übergänge oder Geometrien zu vermeiden.In one embodiment of the impact plate, the aerodynamic shape of the impact plate has a constriction between two adjacent impact surfaces of the impact plate. The constriction can be contained in a cross-section of the impact plate that contains the two adjacent impact surfaces of the impact plate. In the area of the constriction, there is thus no material of the impact plate present that would hinder the formation of the preferably laminar flow for transporting the bristle bundles into the receiving holes of the perforated plate. The aerodynamic shape of the impact plate can include rounded contours between adjacent impact surfaces, for example in the area of a constriction, as previously explained, in order to avoid sharp-edged transitions or geometries.

Der zumindest eine stromlinienförmige Abschnitt kann einen spiegelsymmetrischen Längsschnitt aufweisen und/oder rotationssymmetrisch sein.The at least one streamlined section may have a mirror-symmetrical longitudinal section and/or be rotationally symmetrical.

Der Längsschnitt kann hierbei in einer entlang einer Längsachse des stromlinienförmigen Abschnitts ausgerichteten Schnittebene enthalten sein. Die Längsachse des stromlinienförmigen Abschnitts kann in einer Haupttransportrichtung der Borstenbündel in die Aufnahmelöcher der Lochplatte und/oder in Hauptströmungsrichtung einer den stromlinienförmigen Abschnitt passierenden Strömung beim Betrieb der Vorrichtung ausgerichtet sein.The longitudinal section can be included in a sectional plane aligned along a longitudinal axis of the streamlined section. The longitudinal axis of the streamlined section can be aligned in a main transport direction of the bristle bundles into the receiving holes of the perforated plate and/or in the main flow direction of a flow passing through the streamlined section during operation of the device.

Der zumindest eine stromlinienförmige Abschnitt kann einen Längsschnitt aufweisen, der durch mehrere Bogenlinien begrenzt ist. Zwei Bogenlinien, die jeweils an unterschiedlichen Seiten einer Mittelachse des Längsschnitts angeordnet sein können, können an einer der Prallfläche abgewandten Seite der Prallplatte miteinander verbunden sein. Die Bogenlinien können dabei jeweils um einen Mittelpunkt verlaufen, der außerhalb der Prallplatte angeordnet ist. Die beiden Bogenlinien haben somit einen vergleichsweise großen Radius, was die Stromlinienform des stromlinienförmigen Abschnitts begünstigen kann. Der stromlinienförmige Abschnitt kann eine im Längsschnitt betrachtet tropfenförmige oder auch eiförmige Geometrie aufweisen.The at least one streamlined section can have a longitudinal section delimited by several curved lines. Two curved lines, which can each be arranged on different sides of a central axis of the longitudinal section, can be connected to one another on a side of the impact plate facing away from the impact surface. The curved lines can each run around a center point located outside the impact plate. The two curved lines thus have a comparatively large radius, which can promote the streamlined shape of the streamlined section. The streamlined section can have a drop-shaped or egg-shaped geometry when viewed in longitudinal section.

Ein Längsschnitt des stromlinienförmigen Abschnitts kann ein der Prallfläche abgewandtes, abgerundetes Ende aufweisen. Auf diese Weise wird eine scharfe Kante oder eine Spitze am Ende des stromlinienförmigen Abschnitts vermieden, was wiederum die Ausbildung einer turbulenzarmen oder turbulenzfreien Strömung um den stromlinienförmigen Abschnitt herum begünstigt.A longitudinal section of the streamlined section may have a rounded end facing away from the impact surface. This avoids a sharp edge or point at the end of the streamlined section, which in turn promotes the formation of low-turbulence or turbulence-free flow around the streamlined section.

Die Prallplatte kann zumindest eine strömungsführende Struktur aufweisen. Die zumindest eine strömungsführende Struktur kann zumindest zum Teil an dem zumindest einen stromlinienförmigen Abschnitt ausgebildet sein. Auch die zumindest eine strömungsführende Struktur kann die Ausbildung einer turbulenzarmen oder turbulenzfreien, vorzugsweise laminaren Strömung begünstigen.The baffle plate can have at least one flow-guiding structure. The at least one flow-guiding structure can be formed at least partially on the at least one streamlined section. The at least one flow-guiding structure can also promote the formation of a low-turbulence or turbulence-free, preferably laminar flow.

Bei einer Ausführungsform der Vorrichtung ist vorgesehen, dass die Prallplatte als strömungsführende Struktur zumindest einen Strömungskanal aufweist. Ein Strömungskanal kann beispielsweise an einer Außenseite des Abschnitts ausgebildet sei. Der Strömungskanal kann dann als Strömungsnut bezeichnet werden. Bei einer Ausführungsform der Vorrichtung ist vorgesehen, dass die Prallplatte als strömungsführende Struktur zumindest einen Strömungskanal aufweist, der die Prallplatte, vorzugsweise den stromlinienförmigen Abschnitt der Prallplatte, durchsetzt. Ein solcher Strömungskanal kann sich in zwei oder mehrere Unterkanäle aufteilen und/oder an einer der Prallfläche abgewandten Rückseite der Prallplatte austreten.In one embodiment of the device, it is provided that the baffle plate has at least one flow channel as a flow-guiding structure. A flow channel can be formed, for example, on an outer side of the section. The flow channel can then be referred to as a flow groove. In one embodiment of the device, It is provided that the baffle plate has at least one flow channel as a flow-guiding structure that passes through the baffle plate, preferably the streamlined section of the baffle plate. Such a flow channel can be divided into two or more subchannels and/or exit at a rear side of the baffle plate facing away from the impact surface.

Die zumindest eine Prallfläche der Prallplatte kann zumindest eine Eintrittsöffnung in einen Strömungskanal der Prallplatte aufweisen. Auf diese Weise wird ein Unterdruck zur Ausbildung einer Strömung zum Transport der Borstenbündel in die Aufnahmelöcher der Lochplatte nahe an den Aufnahmelöchern der Lochplatte angelegt. In diesem Zusammenhang sei erwähnt, dass es vorteilhaft sein kann, wenn eine derartige Eintrittsöffnung an einer Prallfläche der Prallplatte versetzt zu den Aufnahmelöchern der Prallplatte angeordnet ist. Auf diese Weise wird vermieden, dass ein Borstenbündel, das in ein Aufnahmeloch der Lochplatte transportiert wird, durch die Eintrittsöffnung in den Strömungskanal der Prallplatte eingesaugt wird. Eine derartig versetzt zu den Aufnahmelöchern der Lochplatte in der Prallfläche angeordnete Eintrittsöffnung muss dann nicht mit einem engmaschigen Gewebe belegt sein, um ein Ansaugen von Borstenfilamenten zu vermeiden. Zudem kann die Eintrittsöffnung vergleichsweise groß sein, was einer Verstopfung der Eintrittsöffnung durch Verschmutzungen entgegenwirken kann.The at least one impact surface of the impact plate can have at least one inlet opening into a flow channel of the impact plate. In this way, a negative pressure is applied close to the receiving holes of the perforated plate to create a flow for transporting the bristle bundles into the receiving holes of the perforated plate. In this context, it should be mentioned that it can be advantageous if such an inlet opening is arranged on an impact surface of the impact plate offset from the receiving holes of the impact plate. In this way, it is avoided that a bristle bundle that is transported into a receiving hole of the perforated plate is sucked through the inlet opening into the flow channel of the impact plate. An inlet opening arranged in this way in the impact surface offset from the receiving holes of the perforated plate does not then have to be covered with a close-meshed fabric to prevent bristle filaments from being sucked in. In addition, the inlet opening can be comparatively large, which can counteract clogging of the inlet opening by dirt.

Bei einer Ausführungsform der Vorrichtung ist vorgesehen, dass die Prallfläche der Prallplatte perforiert ist. Zu diesem Zweck kann die Prallfläche zumindest eine Strömungsöffnung aufweisen, vorzugsweise eine Bohrung, besonders bevorzugt eine Laserbohrung.In one embodiment of the device, the impact surface of the impact plate is perforated. For this purpose, the impact surface can have at least one flow opening, preferably a bore, particularly preferably a laser bore.

Die Vorrichtung kann ferner ein Gehäuse mit einer Aufnahme für die Prallplatte aufweisen. Das Gehäuse mit seiner Aufnahme kann dann als Ansaugglocke dienen, an die der Unterdruck zum Transport der Borstenbündel in die Aufnahmelöcher der Lochplatte angelegt werden kann.The device may further comprise a housing with a receptacle for the impact plate. The housing and its receptacle can then serve as a suction bell, to which the negative pressure can be applied to transport the bristle bundles into the receiving holes of the perforated plate.

Zur Ausbildung der zuvor bereits erläuterten Strömung kann es zweckmäßig sein, wenn die Aufnahme des Gehäuses eine korrespondierend zum zumindest einen stromlinienförmigen Abschnitt ausgebildete, stromlinienförmige Innenkontur aufweist. Auch hierbei kann die Innenkontur möglichst frei von scharfen Kanten und/oder Übergängen gehalten sein. Dies begünstigt die Vermeidung von Turbulenzen beim Durchströmen der Aufnahme und verbessert eine für die Funktion der Vorrichtung vorteilhafte Aerodynamik innerhalb der Vorrichtung.To create the flow described above, it may be advantageous for the housing receptacle to have a streamlined inner contour corresponding to at least one streamlined section. Here, too, the inner contour can be kept as free as possible from sharp edges and/or transitions. This helps prevent turbulence during flow through the receptacle and improves the aerodynamics within the device, which is beneficial for the device's function.

Das Gehäuse kann zumindest einen in Richtung einer Längsachse der Prallplatte ausgerichteten Strömungskanal und/oder zumindest einen quer zu einer Längsachse der Prallplatte ausgerichteten Strömungskanal aufweisen. Die Strömungskanäle können durch die Innenkontur der Aufnahme und/oder die Außenkontur der Prallplatte, insbesondere durch die Außenkontur des stromlinienförmigen Abschnitts, definiert sein.The housing may have at least one flow channel oriented in the direction of a longitudinal axis of the impact plate and/or at least one flow channel oriented transversely to a longitudinal axis of the impact plate. The flow channels may be defined by the inner contour of the receptacle and/or the outer contour of the impact plate, in particular by the outer contour of the streamlined section.

Die Prallplatte kann zumindest ein Fixiermittel, beispielsweise zumindest einen Haltemagnet, aufweisen, mit dem die Prallplatte beispielsweise in einem Gehäuse festgelegt werden kann. Das Fixiermittel kann den einfachen, vorzugsweise werkzeuglosen Wechsel der Prallplatte begünstigen.The impact plate may have at least one fixing means, for example, at least one holding magnet, with which the impact plate can be secured, for example, in a housing. The fixing means may facilitate easy, preferably tool-free, replacement of the impact plate.

Das Gehäuse und die Prallplatte können aus einem Stück hergestellt sein und/oder eine stofflich homogene, monolithische Einheit bilden. Die Prallplatte und/oder das Gehäuse, insbesondere der zumindest eine stromlinienförmige Abschnitt der Prallplatte und/oder die Aufnahme des Gehäuses, können mittels eines additiven Fertigungsverfahrens hergestellt sein. Die Verwendung eines additiven Fertigungsverfahrens zur Herstellung der vergleichsweise komplexen Geometrien der Prallplatte und/oder des Gehäuses kann die Fertigungskosten der Prallplatte und/oder des Gehäuses reduzieren.The housing and the impact plate can be made from one piece and/or form a materially homogeneous, monolithic unit. The impact plate and/or the Housings, in particular the at least one streamlined section of the impact plate and/or the housing receptacle, can be manufactured using an additive manufacturing process. The use of an additive manufacturing process to produce the comparatively complex geometries of the impact plate and/or the housing can reduce the manufacturing costs of the impact plate and/or the housing.

Die Vorrichtung kann für jedes Aufnahmeloch der Lochplatte eine Saugleitung aufweisen. Über die Saugleitung kann ein Unterdruck zum Ansaugen von Borstenbündeln angelegt werden. Die Saugleitungen können hierbei in die Aufnahmelöcher der Lochplatte münden. Jedes Aufnahmeloch ist hierbei vorzugsweise mit einer Saugleitung verbunden. Einzelne oder mehrere Saugleitungen können in einer gemeinsamen Saugleitung zusammengeführt sein. Dies kann vorteilhaft sein, um Borstenbündel bei ihrem Transport in die Lochplatte aus Teilbündeln zusammenzufügen.The device can have a suction line for each receiving hole in the perforated plate. A vacuum can be applied via the suction line to suck in the bristle bundles. The suction lines can open into the receiving holes in the perforated plate. Each receiving hole is preferably connected to a suction line. Individual or multiple suction lines can be combined into a common suction line. This can be advantageous for joining bristle bundles from sub-bundles during their transport into the perforated plate.

Die Vorrichtung kann mit einer Unterdruckquelle verbunden sein und/oder eine Unterdruckquelle aufweisen. Der mit der Unterdruckquelle erzeugte Unterdruck kann mit der Vorrichtung auf die in die Aufnahmelöcher der Lochplatte zu transportierenden Borstenbündel wirken, um diese in die Aufnahmelöcher der Lochplatte zu saugen.The device can be connected to a vacuum source and/or have a vacuum source. The vacuum generated by the vacuum source can act on the bristle bundles to be transported into the receiving holes of the perforated plate, thereby sucking them into the receiving holes of the perforated plate.

Austrittsenden der Saugleitungen können an einer Halteplatte der Vorrichtung angeordnet oder ausgebildet sein. Die Halteplatte ist dann der Lochplatte in Transportrichtung der Borstenbündel vorgelagert.The outlet ends of the suction lines can be arranged or formed on a holding plate of the device. The holding plate is then positioned upstream of the perforated plate in the transport direction of the bristle bundles.

Zur Lösung der Aufgabe wird auch eine Borstenwarenherstellungsmaschine vorgeschlagen, die eine Vorrichtung zur Zuführung von Borstenbündeln für die Herstellung von Borstenwaren nach einem der auf eine solche gerichteten Ansprüche umfasst.To solve the problem, a bristle goods manufacturing machine is also proposed, which has a device for feeding bristle bundles for the Manufacture of bristle goods according to one of the claims directed thereto.

Die Erfindung wird nachfolgend anhand von Ausführungsbeispielen näher beschrieben, ist aber nicht auf diese Ausführungsbeispiele beschränkt. Weitere Ausführungsbeispiele ergeben sich durch Kombination der Merkmale einzelner oder mehrerer Schutzansprüche untereinander und/oder in Kombination einzelner oder mehrerer Merkmale der Ausführungsbeispiele. Es zeigen:

Figur 1:
eine geschnittene Seitenansicht einer Borstenwarenherstellungsmaschine mit einer Vorrichtung zum Transport von Borstenbündeln mittels Unterdrucks in Aufnahmelöcher einer Lochplatte, wobei die Vorrichtung einer Abteilvorrichtung zum Abteilen von Borstenbündeln aus einem Vorrat loser Borstenfilamente nachgelagert ist und mehrere Saugleitungen zum Transport der Borstenbündel in Aufnahmelöcher einer Lochplatte aufweist, wobei der Lochplatte nachgelagert eine Prallplatte angeordnet ist, die eine Prallfläche umfasst, der ein stromlinienförmiger Abschnitt der Prallplatte nachgelagert ist, um eine turbulenzarme oder turbulenzfreie Strömung hin zu einer Unterdruckquelle der Vorrichtung zu begünstigen,
Figuren 2-5:
unterschiedliche Ansichten einer ersten Ausführungsform einer Prallplatte, wobei die Prallplatte zwei im Wesentlichen kreisförmige Prallflächen aufweist, die zwei kreisförmigen Lochfeldern einer Lochplatte der Vorrichtung zugeordnet sind,
Figuren 6 und 7:
unterschiedliche, perspektivische Ansichten einer weiteren Ausführungsform einer Prallplatte mit zwei Prallflächen, wobei jeder Prallfläche ein stromlinienförmiger Abschnitt nachgelagert ist, und wobei die Prallplatte mehrere strömungsführende Strukturen in Form von außenseitig an der Prallplatte ausgebildeten Strömungskanälen aufweist,
Figuren 8-11:
unterschiedliche Ansichten einer weiteren Ausführungsform einer Prallplatte, wobei hier die zwei Prallflächen der Prallplatte jeweils vier Eintrittsöffnungen in strömungsführende Strukturen, nämlich in die Prallplatte durchsetzende Strömungskanäle aufweisen, wobei sich die Strömungskanäle im Verlauf zu ihren Austrittsenden in mehrere Teilkanäle aufspalten, wie es die Schnittdarstellung gemäß Figur 11 verdeutlicht,
Figuren 12-14:
unterschiedliche Ansichten einer weiteren Ausführungsform einer Prallplatte, die insgesamt zwei Prallflächen aufweist, zwischen denen eine Einschnürung der Prallplatte ausgebildet ist, um einerseits die Fläche der Prallplatte zu minimieren und andererseits die Prallflächen der Prallplatte an die Geometrien der Lochfelder der entsprechenden Lochplatte, der die Prallplatte zugeordnet ist, anzupassen,
Figur 15:
eine perspektivische Darstellung von zwei in einem gemeinsamen Gehäuse angeordneten Prallplatten, die jeweils zwei separate Prallflächen aufweisen, wobei das Gehäuse und die Prallplatten aus einem Teil bestehen und mittels eines additiven Fertigungsverfahrens, beispielsweise mittels 3-D-Drucks hergestellt sind,
Figur 16:
eine Ansicht eines weiteren Gehäuses mit zwei darin angeordneten Prallplatten, wobei die Prallplatten Fixiermittel in Form von Haltemagneten aufweisen, mittels derer sie in dem Gehäuse befestigt sind und bei Bedarf ohne Werkzeugeinsatz einfach und schnell ausgebaut werden können,
Figur 17:
eine entlang der in Figur 16 gezeigten Linie XVII-XVII geschnittene Seitenansicht des in Figur 16 gezeigten Gehäuses und der beiden Prallplatten, wobei zu erkennen ist, dass zwischen den Prallplatten und ihren Aufnahmen im Gehäuse neben mittigen Strömungskanälen in Strömungsrichtung hinter den Prallplatten, auch seitliche Strömungskanäle vorgesehen sind, die bewirken, dass ein Unterdruck bzw. eine daraus resultierende Strömung zu einem Anteil auch über die Seiten der Aufnahme des Gehäuses geführt werden kann, so dass nicht die komplette Strömung nach Auftreffen auf der Prallplatte eine Umlenkung von 90° am Rand der Prallplatten vollziehen muss.
The invention is described in more detail below using exemplary embodiments, but is not limited to these exemplary embodiments. Further exemplary embodiments result from the combination of the features of one or more claims with one another and/or from the combination of one or more features of the exemplary embodiments. They show:
Figure 1:
a sectional side view of a bristle manufacturing machine with a device for transporting bristle bundles by means of negative pressure into receiving holes of a perforated plate, wherein the device is arranged downstream of a separating device for separating bristle bundles from a supply of loose bristle filaments and has several suction lines for transporting the bristle bundles into receiving holes of a perforated plate, wherein a baffle plate is arranged downstream of the perforated plate, which baffle plate comprises a baffle surface, which is followed by a streamlined section of the baffle plate in order to promote a low-turbulence or turbulence-free flow towards a negative pressure source of the device,
Figures 2-5:
different views of a first embodiment of a baffle plate, wherein the baffle plate has two substantially circular baffles which are assigned to two circular perforated fields of a perforated plate of the device,
Figures 6 and 7:
different perspective views of a further embodiment of a baffle plate with two baffles, wherein each baffle surface is followed by a streamlined section, and wherein the baffle plate has several flow-guiding structures in the form of flow channels formed on the outside of the baffle plate,
Figures 8-11:
different views of a further embodiment of a baffle plate, wherein here the two baffle surfaces of the baffle plate each have four inlet openings into flow-guiding structures, namely flow channels passing through the baffle plate, wherein the flow channels split into several sub-channels in the course of their outlet ends, as shown in the sectional view according to Figure 11 clarified,
Figures 12-14:
different views of a further embodiment of a baffle plate, which has a total of two baffles, between which a constriction of the baffle plate is formed in order, on the one hand, to minimize the area of the baffle plate and, on the other hand, to adapt the baffle surfaces of the baffle plate to the geometries of the hole fields of the corresponding perforated plate to which the baffle plate is assigned,
Figure 15:
a perspective view of two baffle plates arranged in a common housing, each having two separate baffle surfaces, wherein the housing and the baffle plates consist of one part and are manufactured using an additive manufacturing process, for example 3D printing,
Figure 16:
a view of another housing with two impact plates arranged therein, wherein the impact plates have fixing means in the form of holding magnets by means of which they are fastened in the housing and can be removed easily and quickly without the use of tools,
Figure 17:
one along the Figure 16 shown line XVII-XVII sectioned side view of the Figure 16 shown housing and the two baffle plates, whereby it can be seen that between the baffle plates and their receptacles in the housing, in addition to central flow channels in the flow direction behind the baffle plates, lateral flow channels are also provided, which ensure that a negative pressure or a resulting flow can also be guided to a certain extent over the sides of the receptacle of the housing, so that the entire flow does not have to undergo a 90° deflection at the edge of the baffle plates after hitting the baffle plate.

Bei der nachfolgenden Beschreibung verschiedener Ausführungsformen der Erfindung erhalten in ihrer Funktion übereinstimmende Elemente auch bei abweichender Gestaltung oder Formgebung übereinstimmende Bezugszeichen.In the following description of various embodiments of the invention, elements that correspond in their function are given the same reference numerals even if they have a different design or shape.

Figur 1 zeigt zumindest Teile einer im Ganzen mit 100 bezeichneten Borstenwarenherstellungsmaschine mit einer im Ganzen mit 1 bezeichneten Vorrichtung zur Zuführung von Borstenbündeln 2 für die Herstellung von Borstenwaren, insbesondere von Zahnbürsten. Die Vorrichtung 1 weist zumindest eine Lochplatte 3 und zumindest eine Prallplatte 4 auf. Die Lochplatte 3 umfasst zumindest ein Lochfeld 5 aus Aufnahmelöchern 6, in die die Borstenbündel 2 mittels einer durch Unterdruck erzeugten Strömung transportiert werden können. Die Prallplatte 4 ist der Lochplatte 3 in Transportrichtung der Borstenbündel 2 durch die Vorrichtung 1 nachgelagert angeordnet. Die Transportrichtung der Borstenbündel 2 und die Strömung durch die Vorrichtung 1 zum Transport der Borstenbündel 2 in die Aufnahmelöcher 6 der Lochplatte 3 werden durch die Pfeile 19 in Figur 1 veranschaulicht. Figure 1 shows at least parts of a bristle goods manufacturing machine, designated as a whole by 100, with a device, designated as a whole by 1, for feeding bristle bundles 2 for the production of bristle goods, in particular toothbrushes. The device 1 has at least one perforated plate 3 and at least one impact plate 4. The perforated plate 3 comprises at least one perforated field 5 of receiving holes 6, into which the bristle bundles 2 can be transported by means of a flow generated by negative pressure. The impact plate 4 is arranged downstream of the perforated plate 3 in the transport direction of the bristle bundles 2 through the device 1. The transport direction of the bristle bundles 2 and the flow through the device 1 for transporting the bristle bundles 2 into the receiving holes 6 of the perforated plate 3 are indicated by the arrows 19 in Figure 1 illustrated.

Die Prallplatte 4 weist zumindest eine Prallfläche 7 für Borstenbündel 2 auf. Mithilfe der Prallfläche 7 können die in die Aufnahmelöcher 6 der Lochplatte 3 eingesaugten Borstenbündel 2 abgebremst werden. Die Prallfläche 7 dient somit als Anschlag für die Borstenbündel 2.The impact plate 4 has at least one impact surface 7 for bristle bundles 2. The impact surface 7 can be used to slow down the bristle bundles 2 sucked into the receiving holes 6 of the perforated plate 3. The impact surface 7 thus serves as a stop for the bristle bundles 2.

Die Figuren 2-17 zeigen unterschiedliche Ausführungsformen von Prallplatten 4, die anstelle der in Figur 1 im Schnitt dargestellten Prallplatte 4 verwendet werden können. Alle der in den Figuren gezeigten Prallplatten 4 weisen eine aerodynamische Form auf, die eine Strömung zum Transport der Borstenbündel 2 in die Aufnahmelöcher 6 der Lochplatten 3 günstig beeinflussen kann.The Figures 2-17 show different embodiments of baffle plates 4, which are used instead of the Figure 1 baffle plate 4 shown in section. All of the baffle plates 4 shown in the figures have an aerodynamic shape, which can favorably influence the flow for transporting the bristle bundles 2 into the receiving holes 6 of the perforated plates 3.

Bis auf die in den Figuren 12-14 gezeigte Prallplatte 4 weist jede der Prallplatten 4 für jede ihrer Prallflächen 7 jeweils einen der entsprechenden Prallfläche 7 nachgelagerten, stromlinienförmigen Abschnitt 8 auf. Jede der in den Figuren gezeigten Prallplatten 4 weist ferner Prallflächen 7 auf, deren Form an eine Form der Lochfelder 5 der den Prallplatten 4 zugeordneten Lochplatten 3 angepasst ist. Bei den gezeigten Ausführungsbeispielen sind die Lochfelder 5 rund, vorzugsweise kreisrund.Except for those in the Figures 12-14 In the baffle plate 4 shown, each of the baffle plates 4 has, for each of its baffle surfaces 7, a streamlined section 8 arranged downstream of the corresponding baffle surface 7. Each of the baffle plates 4 shown in the figures further has baffle surfaces 7 whose shape is adapted to a shape of the perforated fields 5 of the perforated plates 3 assigned to the baffle plates 4. In the exemplary embodiments shown, the perforated fields 5 are round, preferably circular.

Die Lochplatten 3, die den in den Figuren 2-17 gezeigten Prallplatten 4 zugeordnet sind, weisen jeweils zumindest zwei Lochfelder 5 mit Aufnahmelöchern 6 auf. Die Prallplatten 4 weisen eine Anzahl von Prallflächen 7 auf, die mit der Anzahl von Lochfeldern 5 der Lochplatten 3 übereinstimmt. So wird sichergestellt, dass jedem Lochfeld 5 der Lochplatten 3 eine Prallfläche 7 einer Prallplatte 4 zugeordnet ist.The perforated plates 3, which are inserted into the Figures 2-17 shown baffle plates 4 each have at least two perforated fields 5 with receiving holes 6. The baffle plates 4 have a number of baffle surfaces 7 that corresponds to the number of perforated fields 5 of the perforated plates 3. This ensures that each perforated field 5 of the perforated plates 3 is assigned a baffle surface 7 of a baffle plate 4.

Die Figuren 1-11 sowie 15-17 verdeutlichen, dass jeder Prallfläche 7 einer Prallplatte 4 jeweils ein stromlinienförmiger Abschnitt 8 nachgelagert ist.The Figures 1-11 and 15-17 illustrate that each impact surface 7 of a baffle plate 4 is followed by a streamlined section 8.

Die stromlinienförmigen Abschnitte 8 weisen eine sich in Strömungsrichtung durch die Vorrichtung 1 konisch oder ballig verjüngende Geometrie auf. Die Prallplatten 4 weisen an ihren mit Strömung in Kontakt kommenden Oberflächen möglichst wenige, vorzugsweise keine scharfkantigen Übergänge auf, insbesondere die quer zur Strömungsrichtung ausgerichtet sind.The streamlined sections 8 have a conical or spherical geometry tapering in the flow direction through the device 1. The impact plates 4 have as few as possible, preferably no sharp-edged transitions on their surfaces that come into contact with the flow, especially those that are oriented transversely to the flow direction.

Die Figuren verdeutlichen ferner, dass die aerodynamischen Formen der Prallplatten 4 abgerundete Übergänge 9 zwischen den Prallflächen 7 und den stromlinienförmigen Abschnitten 8 der Prallplatte 4 umfassen.The figures further illustrate that the aerodynamic shapes of the impact plates 4 include rounded transitions 9 between the impact surfaces 7 and the streamlined sections 8 of the impact plate 4.

Die Figuren 2-17 zeigen, dass die aerodynamische Form der Prallplatten 4 zwischen den Prallflächen 7 jeweils eine Einschnürung 10 umfasst.The Figures 2-17 show that the aerodynamic shape of the impact plates 4 includes a constriction 10 between the impact surfaces 7.

Figur 4 mit einem Längsschnitt durch einen stromlinienförmigen Abschnitt 8 der in den Figuren 2-5 gezeigten Prallplatte 4 verdeutlicht, dass der stromlinienförmige Abschnitt 8 einen spiegelsymmetrischen Längsschnitt aufweist und zudem rotationssymmetrisch ist. Ähnliches gilt auch für die in den Figuren 8-11 gezeigte Prallplatte 4 und ihren Längsschnitt, der in Figur 11 abgebildet ist. Figure 4 with a longitudinal section through a streamlined section 8 of the Figures 2-5 The baffle plate 4 shown in the drawing illustrates that the streamlined section 8 has a mirror-symmetrical longitudinal section and is also rotationally symmetrical. The same applies to the Figures 8-11 shown baffle plate 4 and its longitudinal section, the in Figure 11 is shown.

Diese stromlinienförmigen Abschnitte 8 weisen jeweils einen Längsschnitt auf, der durch mehrere Bogenlinien 11 begrenzt ist, wobei zwei der Bogenlinien 11 an einer der Prallfläche 7 abgewandten Seite der Prallplatte 4 miteinander verbunden sind. Die Bogenlinien 11 verlaufen dabei jeweils um einen Mittelpunkt, der außerhalb der jeweiligen Prallplatte 4 angeordnet ist. An ihrem der Prallfläche 7 abgewandten Ende sind die stromlinienförmigen Abschnitte 8 abgerundet.These streamlined sections 8 each have a longitudinal section delimited by a plurality of curved lines 11, two of which are connected to one another on a side of the impact plate 4 facing away from the impact surface 7. The curved lines 11 each extend around a center point located outside the respective impact plate 4. At their end facing away from the impact surface 7, the streamlined sections 8 are rounded.

Die in den Figuren 6 und 7 sowie 8-11 gezeigten Prallplatten 4 sind mit strömungsführenden Strukturen 12 versehen, die die Ausbildung einer turbulenzarmen oder turbulenzfreien Strömung um die Prallplatte 4 begünstigen.The Figures 6 and 7 and 8-11 are provided with flow-guiding structures 12 which promote the formation of a low-turbulence or turbulence-free flow around the baffle plate 4.

Bei dem in den Figuren 6 und 7 gezeigten Ausführungsbeispiel einer Prallplatte 4 sind strömungsführende Strukturen 12 in Form von außenseitig in die Prallplatte 4 eingebrachten Strömungskanälen 13 vorgesehen.In the Figures 6 and 7 In the embodiment of a baffle plate 4 shown, flow-guiding structures 12 are provided in the form of flow channels 13 introduced into the outside of the baffle plate 4.

Die in den Figuren 8-11 gezeigte Prallplatte 4 weist strömungsführende Strukturen 12 in Form von Strömungskanälen 13 auf, die die Prallplatte 4 und den Abschnitt 8 der Prallplatte 4 durchsetzen. Dies ist gut an der Schnittdarstellung der Prallplatte 4 gemäß Figur 11 zu erkennen. Bei dem in den Figuren 8-11 gezeigten Ausführungsbeispiel einer Prallplatte 4 sind innerhalb der Prallflächen 7 jeweils insgesamt vier Eintrittsöffnungen 14 in einen Strömungskanal 13 der Prallplatte 4 ausgebildet. Die Strömungskanäle 13 verzweigen sich in ihrem Verlauf hin zu einem rückseitigen Ende der Prallplatte 4 in mehrere Teilkanäle 15 auf. Dies ist in der Schnittdarstellung gemäß Figur 11 zu erkennen. Die Eintrittsöffnungen 14 befinden sich in Positionen an der jeweiligen Prallfläche 7, die versetzt zu Bereichen sind, in denen Borstenbündel 2 auf die Prallflächen 7 auftreffen. Die Eintrittsöffnungen 14 sind somit versetzt zu den Aufnahmelöchern 6 der Lochplatten 3 angeordnet, sodass senkrechte Projektionen der Aufnahmelöcher 6 auf die Prallflächen 7 außerhalb der Eintrittsöffnungen 14 positioniert sind.The Figures 8-11 The baffle plate 4 shown has flow-guiding structures 12 in the form of flow channels 13, which pass through the baffle plate 4 and the section 8 of the baffle plate 4. This is clearly visible in the sectional view of the baffle plate 4 according to Figure 11 to recognize. In the Figures 8-11 In the embodiment of a baffle plate 4 shown, a total of four inlet openings 14 are formed within the baffles 7 into a flow channel 13 of the baffle plate 4. The flow channels 13 branch out into several sub-channels 15 as they extend towards a rear end of the baffle plate 4. This is shown in the sectional view according to Figure 11 The inlet openings 14 are located in positions on the respective impact surface 7, which are offset from areas in which bristle bundles 2 hit the impact surfaces 7. The inlet openings 14 are thus arranged offset from the receiving holes 6 of the perforated plates 3, so that vertical projections of the receiving holes 6 onto the impact surfaces 7 are positioned outside the inlet openings 14.

Bei Bedarf ist es möglich, die Prallflächen 7 der Prallplatten 4 mit Strömungsöffnungen zu perforieren. Als Strömungsöffnungen können beispielsweise Bohrungen, vorzugsweise Laserbohrungen in die Prallplatten 4 eingebracht werden. Insbesondere die in den Figuren 12-14 gezeigte Ausführungsform der Prallplatte 4, die keinen stromlinienförmigen Abschnitt 8 aufweist, der den Prallflächen 7 dieser Prallplatte 4 nachgelagert angeordnet ist, eignet sich für eine derartige Perforation. Durch eine solche Perforation kann auf ein engmaschiges Gewebe, mit dem in der Praxis verwendete Prallplatten oftmals belegt sind, verzichtet werden.If required, it is possible to perforate the impact surfaces 7 of the impact plates 4 with flow openings. For example, holes, preferably laser holes, can be made in the impact plates 4 as flow openings. In particular, the holes shown in the Figures 12-14 The embodiment of the impact plate 4 shown, which does not have a streamlined section 8 arranged downstream of the impact surfaces 7 of this impact plate 4, is suitable for such a perforation. Such a perforation eliminates the need for a close-meshed fabric, which is often used on impact plates used in practice.

Die Figuren 1 und 15 bis 17 zeigen, dass die Vorrichtung 1 ferner ein Gehäuse 16 mit einer Aufnahme 17 für zumindest eine Prallplatte 4 aufweist. Die Aufnahme 17 weist dabei eine korrespondierend zu dem zumindest einen stromlinienförmigen Abschnitt 8 ausgebildete, stromlinienförmige Innenkontur auf.The Figures 1 and 15 to 17 show that the device 1 further comprises a housing 16 with a receptacle 17 for at least one impact plate 4. The receptacle 17 has a streamlined inner contour formed corresponding to the at least one streamlined section 8.

Das Gehäuse 16 bildet zusammen mit der zumindest einen Prallplatte 4 zumindest einen in Richtung einer Längsachse der Prallplatte 4 bzw. des Gehäuses 16 ausgerichteten Strömungskanal 27 und zumindest einen quer zu der Längsachse der Prallplatte 4 bzw. des Gehäuses 16 ausgerichteten Strömungskanal 28 aus.The housing 16, together with the at least one baffle plate 4, forms at least one flow channel 27 aligned in the direction of a longitudinal axis of the baffle plate 4 or the housing 16 and at least one flow channel 28 aligned transversely to the longitudinal axis of the baffle plate 4 or the housing 16.

Bei den in den Figuren 2-14 sowie 16-17 gezeigten Prallplatten 4 weisen diese mehrere Fixiermittel 18 in Form von Haltemagneten auf, mit denen die Prallplatten 4 ohne Werkzeugeinsatz in den Aufnahmen 17 der Gehäuse 16 der Vorrichtung 1 befestigt werden können.In the Figures 2-14 and 16-17, these have a plurality of fixing means 18 in the form of holding magnets, with which the baffle plates 4 can be fastened in the receptacles 17 of the housing 16 of the device 1 without the use of tools.

Bei dem in Figur 15 gezeigten Ausführungsbeispiel eines Gehäuses 16 ist dieses zusammen mit den zwei Prallplatten 4 aus einem Stück hergestellt. Gehäuse 16 und Prallplatten 4 bilden somit eine stofflich homogene, monolithische Einheit, die sich beispielsweise mittels eines additiven Fertigungsverfahrens herstellen lässt.In the Figure 15 In the illustrated embodiment of a housing 16, the housing is made from a single piece together with the two impact plates 4. The housing 16 and impact plates 4 thus form a materially homogeneous, monolithic unit, which can be manufactured, for example, using an additive manufacturing process.

Bei dem in den Figuren 16 und 17 gezeigten Ausführungsbeispiel weist das Gehäuses 16 innerhalb der Aufnahmen 17 für die Prallplatten 4 mehrere Strömungsleitflächen 29 auf, die die Strömungskanäle 27, 28 zwischen den Prallplatten 4 und den Innenkonturen der Aufnahmen 17 begrenzen und formen.In the Figures 16 and 17 In the embodiment shown, the housing 16 has a plurality of flow guide surfaces 29 within the receptacles 17 for the impact plates 4, which delimit and form the flow channels 27, 28 between the impact plates 4 and the inner contours of the receptacles 17.

Wie bei den übrigen Ausführungsformen von Prallplatten 4 gilt auch bei dem in Figur 15 gezeigten Ausführungsbeispiel, dass die Prallplatten 4 und die Gehäuse 16, insbesondere der zumindest eine stromlinienförmige Abschnitt 8 der Prallplatten 4 und/oder die Aufnahmen 17 der Gehäuse 16 mittels eines additiven Fertigungsverfahrens hergestellt sein können.As with the other designs of impact plates 4, the same applies to the Figure 15 shown embodiment that the impact plates 4 and the housings 16, in particular the at least one streamlined section 8 of the impact plates 4 and/or the receptacles 17 of the housings 16 can be manufactured by means of an additive manufacturing process.

Die Vorrichtung 1 gemäß Figur 1 weist für jedes Aufnahmeloch 6 der jeweiligen Lochplatte 3 jeweils eine Saugleitung 20 auf. Ferner ist die Vorrichtung 1 gemäß Figur 1 mit einer Unterdruckquelle 21 ausgestattet oder verbunden, deren Unterdruck an die strömungsführenden Teile der Vorrichtung 1, nämlich an das Gehäuse 16, die Prallplatten 4, die Lochplatten 3, die Saugleitungen 20 und letztendlich die darin angeordneten Borstenbündel 2 angelegt werden kann.The device 1 according to Figure 1 has a suction line 20 for each receiving hole 6 of the respective perforated plate 3. Furthermore, the device 1 according to Figure 1 equipped or connected to a vacuum source 21, the vacuum of which can be applied to the flow-conducting parts of the device 1, namely to the housing 16, the baffle plates 4, the perforated plates 3, the suction lines 20 and ultimately the bristle bundles 2 arranged therein.

Austrittsenden 22 der Saugleitungen 20 sind an einer Halteplatte 23 der Vorrichtung 1 befestigt. Die Halteplatte 23 ist der Lochplatte 3 vorgelagert.Outlet ends 22 of the suction lines 20 are attached to a holding plate 23 of the device 1. The holding plate 23 is positioned upstream of the perforated plate 3.

Die Funktionsweise der Vorrichtung 1 ist dabei wie folgt:
Mittels eines Bündelabteilers 24 der Vorrichtung 1 werden Borstenbündel 2 aus einem Vorrat 25 loser Borstenfilamente abgeteilt und in die in Figur 1 gezeigte Übergabeposition an der Vorrichtung 1 bewegt.The functioning of device 1 is as follows:
By means of a bundle separator 24 of the device 1, bristle bundles 2 are separated from a supply 25 of loose bristle filaments and placed in the Figure 1 shown transfer position on the device 1.

Die noch in dem Bündelabteiler 24 angeordneten Borstenbündel 2 stehen in der in Figur 1 gezeigten Übergabeposition vor Eintrittsöffnungen der Saugleitungen 20 an einer weiteren Halteplatte 26 der Vorrichtung 1 an, an der die Saugleitungen 20 mit ihren Eintrittsenden befestigt sind.The bristle bundles 2 still arranged in the bundle separator 24 are in the Figure 1 shown transfer position in front of the inlet openings of the suction lines 20 on a further holding plate 26 of the device 1, to which the suction lines 20 are fastened with their inlet ends.

Wird nun die Unterdruckquelle 21 der Vorrichtung 1 aktiviert, werden die bereitgehaltenen Borstenbündel 2 gemäß den Pfeilen 19 in Figur 1, die die Transportrichtung der Borstenbündel 2 durch die Vorrichtung 1 symbolisieren, in die Saugleitungen 20 eingezogen und durch die mit dem Unterdruck erzeugte Strömung in die Aufnahmelöcher 6 der Lochplatte 3 transportiert. Durch die hinter der Lochplatte 3 angeordnete Prallplatte 4 werden die Borstenbündel 2 abgebremst. Dabei stoßen die Borstenbündel 2 an der Prallfläche 7 der Lochplatte 3 an.If the vacuum source 21 of the device 1 is now activated, the bristle bundles 2 held ready are moved according to the arrows 19 in Figure 1 , which symbolize the transport direction of the bristle bundles 2 through the device 1, are drawn into the suction lines 20 and transported into the receiving holes 6 of the perforated plate 3 by the flow generated by the negative pressure. The bristle bundles 2 are decelerated by the impact plate 4 arranged behind the perforated plate 3. In doing so, the bristle bundles 2 hit the impact surface 7 of the perforated plate 3.

Durch die aerodynamische Form der Prallplatte 4, die unter anderem durch die stromlinienförmige Geometrie des stromlinienförmigen Abschnitts 8 gekennzeichnet ist, wird eine mit der Unterdruckquelle 21 erzeugte Strömung so geführt, dass Turbulenzen reduziert oder gar vollständig vermieden werden. Dies kann den Transport der Borstenbündel 2 in die Aufnahmelöcher 6 der Lochplatte 3 und/oder die zuverlässige Abfuhr von Verschmutzungen, beispielsweise von Schleifstaub begünstigen, die/der den Borstenbündeln 2 anhaften können.Due to the aerodynamic shape of the impact plate 4, which is characterized, among other things, by the streamlined geometry of the streamlined section 8, a flow generated by the vacuum source 21 is guided in such a way that turbulence is reduced or even completely avoided. This can promote the transport of the bristle bundles 2 into the receiving holes 6 of the perforated plate 3 and/or the reliable removal of contaminants, such as grinding dust, that may adhere to the bristle bundles 2.

Figur 1 zeigt, dass die Unterdruckquelle 21 über die Aufnahme 17 des Gehäuses 16, die Strömungskanäle 27, 28, die die Prallplatte 4 zusammen mit der Innenkontur der Aufnahme 17 des Gehäuses 16 ausbilden, die Aufnahmelöcher 6 der Lochplatte 3 und die Saugleitungen 20 mit den in Übergabeposition befindlichen Borstenbündeln 2 derart verbunden ist, dass die Borstenbündel 2 durch die Saugleitungen 20 in die Aufnahmelöcher 6 der Lochplatte 3 eingesaugt werden können. Dabei werden die Borstenbündel 2 von der Prallfläche 7 der Prallplatte 4 abgebremst. Figure 1 shows that the vacuum source 21 via the receptacle 17 of the housing 16, the flow channels 27, 28, which the baffle plate 4 together with the inner contour of the receptacle 17 of the housing 16 form, the receiving holes 6 of the perforated plate 3 and the suction lines 20 are connected to the bristle bundles 2 located in the transfer position in such a way that the bristle bundles 2 can be sucked through the suction lines 20 into the receiving holes 6 of the perforated plate 3. The bristle bundles 2 are braked by the impact surface 7 of the impact plate 4.

Die Erfindung befasst sich mit Verbesserungen auf dem technischen Gebiet der Herstellung von Borstenwaren 2. Hierzu wird eine Vorrichtung 1 zur Zuführung von Borstenbündeln 2 für die Herstellung von Borstenwaren vorgeschlagen, die eine Prallplatte 4 mit aerodynamischer Form aufweist.The invention relates to improvements in the technical field of the production of bristle articles 2. For this purpose, a device 1 for feeding bristle bundles 2 for the production of bristle articles is proposed, which device has a baffle plate 4 with an aerodynamic shape.

BezugszeichenlisteList of reference symbols

11
Vorrichtungdevice
22
Borstenbündelbundle of bristles
33
LochplattePerforated plate
44
Prallplattebaffle plate
55
Lochfeld in 3Hole field in 3
66
Aufnahmeloch in 3Mounting hole in 3
77
Prallfläche von 4Impact area of 4
88
stromlinienförmiger Abschnitt von 4streamlined section of 4
99
Übergang zwischen 7 und 8Transition between 7 and 8
1010
Einschnürungconstriction
1111
Bogenliniecurved line
1212
strömungsführende Strukturflow-guiding structure
1313
Strömungskanal in oder an 4Flow channel in or on 4
1414
EintrittsöffnungEntrance opening
1515
Teilkanalsub-channel
1616
GehäuseHousing
1717
Aufnahme in 16Recording in 16
1818
Fixiermittelfixer
1919
Transportrichtung der Borstenbündel durch die Vorrichtung/StrömungTransport direction of the bristle bundles through the device/flow
2020
Saugleitungsuction line
2121
UnterdruckquelleVacuum source
2222
Austrittsende von 20Exit end of 20
2323
Halteplatteholding plate
2424
BündelabteilerBundle divider
2525
Vorrat loser BorstenfilamenteStock of loose bristle filaments
2626
weiter Halteplattefurther holding plate
2727
Strömungskanal in 17Flow channel in 17
2828
Strömungskanal in 17Flow channel in 17
2929
StrömungsleitflächeFlow guide surface
100100
BorstenwarenherstellungsmaschineBristle goods manufacturing machine

Claims (19)

  1. Device (1) for feeding bristle bundles (2) for the production of bristle products, in particular toothbrushes, wherein the device (1) has at least one perforated plate (3) having at least one hole array (5) made of receiving holes (6) into which the bristle bundles (2) can be transported by means of a flow generated by a vacuum, and at least one baffle plate (4) arranged downstream of the perforated plate (3), which baffle plate (4) has at least one baffle surface (7) as a stop for bristle bundles (2) to be transported into the receiving holes (6) of the perforated plate (2), characterized in that the baffle plate (4) has an aerodynamic shape and the device (1) has a housing (16) with a receptacle (17) for the baffle plate (4), wherein the receptacle (17) has a streamlined inner contour corresponding to the aerodynamically shaped baffle plate (4).
  2. Device (1) according to claim 1, wherein the aerodynamic shape of the baffle plate (4) comprises at least one streamlined section (8) which is arranged downstream of the at least one baffle surface (7), and/or that the aerodynamic shape comprises at least one baffle surface (7) which is adapted to the shape of a hole array (5) of the perforated plate (3).
  3. Device (1) according to claim 1 or 2, wherein the perforated plate (3) has at least two hole arrays (5) with receiving holes (6), and/or wherein a baffle surface (7) is associated with each hole array (5), preferably wherein the baffle plate (4) has a number of baffle surfaces (7) which corresponds to the number of hole arrays (5) of the perforated plate (3).
  4. Device (1) according to one of the preceding claims, characterized in that a streamlined section (8) is located downstream of each baffle surface (7) of the baffle plate (4).
  5. Device (1) according to one of the preceding claims, characterized in that at least one streamlined section (8) of the baffle plate (4) has a geometry which tapers in the direction of flow, in particular in a conical or spherical manner, and/or wherein the baffle plate (4) has rounded transitions on surfaces coming into contact with the flow.
  6. Device (1) according to one of the preceding claims, wherein the aerodynamic shape of the baffle plate (4) has a rounded transition (9) between the at least one baffle surface (7) and a streamlined section (8) of the baffle plate (4), and/or wherein the aerodynamic shape of the baffle plate (4) has a constriction (10) between adjacent baffle surfaces (7), and/or wherein the aerodynamic shape of the baffle plate (4) has rounded contours between baffle surfaces (7) of the baffle plate (4).
  7. Device (1) according to one of the preceding claims, wherein at least one streamlined section (8) has a mirror-symmetrical longitudinal section and/or is rotationally symmetrical.
  8. Device (1) according to one of the preceding claims, wherein at least one streamlined section (8) has a longitudinal section which is bounded by at least two or more arcs (11), wherein two arcs (11) are connected to one another on a side of the baffle plate (4) facing away from the baffle surface (7) and/or each run around a center point which is arranged outside the baffle plate (4).
  9. Device (1) according to one of the preceding claims, wherein a longitudinal section of at least one streamlined section (8) has a rounded end facing away from the baffle surface (7).
  10. Device (1) according to one of the preceding claims, wherein the baffle plate (4) has at least one flow-guiding structure (12).
  11. Device (1) according to one of the preceding claims, wherein the baffle plate (4) has at least one flow channel (13) as the flow-guiding structure (12), in particular wherein at least one flow channel (13) is formed on an outer side of a streamlined section (8) and/or wherein at least one flow channel (13) passes through the baffle plate (4), in particular a streamlined section (8) of the baffle plate (4).
  12. Device (1) according to one of the preceding claims, wherein the at least one baffle surface (7) has at least one inlet opening (14) into a flow channel (13) of the baffle plate (4).
  13. Device (1) according to one of the preceding claims, wherein at least one baffle surface (7) is perforated, in particular by at least one flow opening, preferably a bore, particularly preferably by a laser bore.
  14. Device (1) according to one of the preceding claims, wherein the housing (16) has at least one flow channel (13) aligned in the direction of a longitudinal axis of the baffle plate (4) and/or at least one flow channel (13) aligned transversely to a longitudinal axis of the baffle plate (4).
  15. Device (1) according to one of the preceding claims, wherein the baffle plate (4) comprises at least one fixing means (18), in particular at least one holding magnet, and/or wherein the housing (16) and the at least one baffle plate (4) are manufactured from one piece and/or form a materially homogeneous, monolithic unit.
  16. Device (1) according to one of the preceding claims, wherein the baffle plate (4) and/or the housing (16), in particular at least one streamlined section (8) and/or the receptacle (17), is/are produced by means of an additive manufacturing process.
  17. Device (1) according to one of the preceding claims, wherein the device (1) has a suction line (20) for each receiving hole (6) of the perforated plate (3) and/or is connected to a vacuum source (21) and/or has a vacuum source (21).
  18. Device (1) according to the preceding claim, wherein outlet ends (22) of the suction lines (20) are arranged or formed on a holding plate (23), in particular wherein the holding plate (23) is mounted in front of the perforated plate (3).
  19. Bristle goods production machine (100) comprising a device (1) according to one of the preceding claims.
EP23704278.3A 2022-02-03 2023-02-03 Device for feeding bristle bundles for the production of bristle products, and bristle material production machine Active EP4447750B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102022102544.6A DE102022102544A1 (en) 2022-02-03 2022-02-03 Device for feeding bundles of bristles for the manufacture of brushware and brushware manufacturing machine
PCT/EP2023/052664 WO2023148322A1 (en) 2022-02-03 2023-02-03 Device for feeding bristle bundles for the production of bristle products, and bristle material production machine

Publications (2)

Publication Number Publication Date
EP4447750A1 EP4447750A1 (en) 2024-10-23
EP4447750B1 true EP4447750B1 (en) 2025-05-07

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Application Number Title Priority Date Filing Date
EP23704278.3A Active EP4447750B1 (en) 2022-02-03 2023-02-03 Device for feeding bristle bundles for the production of bristle products, and bristle material production machine

Country Status (6)

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US (1) US20250151892A1 (en)
EP (1) EP4447750B1 (en)
CN (1) CN222443458U (en)
DE (1) DE102022102544A1 (en)
TW (1) TW202333603A (en)
WO (1) WO2023148322A1 (en)

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2222152A1 (en) * 1971-10-20 1973-11-22 Werner Blankschein METHOD AND DEVICE FOR PRODUCING HAIR OR. BUNCHES OF BRISTLES (DOLLS) FROM A HAIR OR. BRISTLE BAND
US5033797A (en) * 1989-06-24 1991-07-23 Fritz Rueb Method of and apparatus for making brushes
DE3920769C2 (en) * 1989-06-24 1991-12-19 Fritz 7869 Schoenau De Rueb
DE102010055686A1 (en) * 2010-12-22 2012-06-28 Zahoransky Ag Device for manufacturing bristle fields for brushes, has two sub-plates formed in receiving plate, where each of multiple downstream holes of individual sub-plate has different surface textures and diameters
US8814275B2 (en) * 2009-03-20 2014-08-26 Zahoransky Ag Method and apparatus for producing bristle areas for brushes
US20170119141A1 (en) * 2014-07-15 2017-05-04 Zahoransky Ag Carrier plate and brush, in particular toothbrush with carrier plate
US9986816B2 (en) * 2014-07-15 2018-06-05 Zahoransky Ag Method for manufacturing bristle arrangements, and device for manufacturing bristle arrangements
BE1026044A1 (en) * 2018-02-21 2019-09-20 Zahoransky Ag Method of providing bristle filaments, transport device and brush making machine
WO2020083848A2 (en) * 2018-10-22 2020-04-30 Zahoransky Ag Apparatus and method for forming bristle bundles, brush manufacturing machine, use of an apparatus for forming bristle bundles, brush, computer program and computer-readable medium
US20210337962A1 (en) * 2018-10-22 2021-11-04 Zahoransky Ag Apparatus and method for forming bristle bundles, brush manufacturing machine, use of an apparatus for forming bristle bundles, brush, computer program and computer-readable medium

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2921074B1 (en) * 2014-03-20 2019-10-16 The Procter and Gamble Company Device for transport of bristles for brush production comprising a baffle plate with conically shaped vents
EP3747310A1 (en) * 2019-06-07 2020-12-09 The Procter & Gamble Company Filament transportation device
DE102019128109A1 (en) * 2019-10-17 2021-04-22 V-Air Machines Gmbh Brush making device

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2222152A1 (en) * 1971-10-20 1973-11-22 Werner Blankschein METHOD AND DEVICE FOR PRODUCING HAIR OR. BUNCHES OF BRISTLES (DOLLS) FROM A HAIR OR. BRISTLE BAND
US5033797A (en) * 1989-06-24 1991-07-23 Fritz Rueb Method of and apparatus for making brushes
DE3920769C2 (en) * 1989-06-24 1991-12-19 Fritz 7869 Schoenau De Rueb
US8814275B2 (en) * 2009-03-20 2014-08-26 Zahoransky Ag Method and apparatus for producing bristle areas for brushes
DE102010055686A1 (en) * 2010-12-22 2012-06-28 Zahoransky Ag Device for manufacturing bristle fields for brushes, has two sub-plates formed in receiving plate, where each of multiple downstream holes of individual sub-plate has different surface textures and diameters
US20170119141A1 (en) * 2014-07-15 2017-05-04 Zahoransky Ag Carrier plate and brush, in particular toothbrush with carrier plate
US9986816B2 (en) * 2014-07-15 2018-06-05 Zahoransky Ag Method for manufacturing bristle arrangements, and device for manufacturing bristle arrangements
BE1026044A1 (en) * 2018-02-21 2019-09-20 Zahoransky Ag Method of providing bristle filaments, transport device and brush making machine
WO2020083848A2 (en) * 2018-10-22 2020-04-30 Zahoransky Ag Apparatus and method for forming bristle bundles, brush manufacturing machine, use of an apparatus for forming bristle bundles, brush, computer program and computer-readable medium
US20210337962A1 (en) * 2018-10-22 2021-11-04 Zahoransky Ag Apparatus and method for forming bristle bundles, brush manufacturing machine, use of an apparatus for forming bristle bundles, brush, computer program and computer-readable medium

Also Published As

Publication number Publication date
WO2023148322A1 (en) 2023-08-10
EP4447750A1 (en) 2024-10-23
CN222443458U (en) 2025-02-11
US20250151892A1 (en) 2025-05-15
DE102022102544A1 (en) 2023-08-03
TW202333603A (en) 2023-09-01

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