[go: up one dir, main page]

EP4537943A1 - Ensemble buse pour l'application de fluides et système d'application de fluides - Google Patents

Ensemble buse pour l'application de fluides et système d'application de fluides Download PDF

Info

Publication number
EP4537943A1
EP4537943A1 EP24195702.6A EP24195702A EP4537943A1 EP 4537943 A1 EP4537943 A1 EP 4537943A1 EP 24195702 A EP24195702 A EP 24195702A EP 4537943 A1 EP4537943 A1 EP 4537943A1
Authority
EP
European Patent Office
Prior art keywords
nozzle
nozzle body
cone
conical
shaped
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.)
Pending
Application number
EP24195702.6A
Other languages
German (de)
English (en)
Inventor
Andreas Pahl
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.)
Illinois Tool Works Inc
Original Assignee
Illinois Tool Works Inc
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 Illinois Tool Works Inc filed Critical Illinois Tool Works Inc
Publication of EP4537943A1 publication Critical patent/EP4537943A1/fr
Pending legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/02—Spray pistols; Apparatus for discharge
    • B05B7/06—Spray pistols; Apparatus for discharge with at least one outlet orifice surrounding another approximately in the same plane
    • B05B7/062—Spray pistols; Apparatus for discharge with at least one outlet orifice surrounding another approximately in the same plane with only one liquid outlet and at least one gas outlet
    • B05B7/066—Spray pistols; Apparatus for discharge with at least one outlet orifice surrounding another approximately in the same plane with only one liquid outlet and at least one gas outlet with an inner liquid outlet surrounded by at least one annular gas outlet
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/02—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape
    • B05B1/06—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape in annular, tubular or hollow conical form
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
    • B05B12/16—Arrangements for controlling delivery; Arrangements for controlling the spray area for controlling the spray area
    • B05B12/18—Arrangements for controlling delivery; Arrangements for controlling the spray area for controlling the spray area using fluids, e.g. gas streams
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D4/00—Spinnerette packs; Cleaning thereof
    • D01D4/02—Spinnerettes
    • D01D4/025—Melt-blowing or solution-blowing dies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
    • B05B13/02—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work
    • B05B13/04—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work the spray heads being moved during spraying operation
    • B05B13/0431—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work the spray heads being moved during spraying operation with spray heads moved by robots or articulated arms, e.g. for applying liquid or other fluent material to three-dimensional [3D] surfaces
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/54—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
    • D04H1/56—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving in association with fibre formation, e.g. immediately following extrusion of staple fibres

Definitions

  • the present invention relates generally to the application of fluids, including thermoplastic or fibrous adhesives, to a substrate through at least one nozzle arrangement that is or can be attached, preferably releasably, to a mounting surface of a manifold or manifold head, said manifold or manifold head typically serving to supply the fluid to be applied to the at least one nozzle arrangement.
  • the purpose of such a system is to apply fluids to, for example, substrates moving relative to the at least one nozzle arrangement, and in particular to apply adhesives in partial spray patterns to partially cover a substrate.
  • the printed matter EP 0 872 580 A discloses, for example, a plurality of meltblown nozzle assemblies or nozzles mountable side by side at one or both ends of a conventional manifold or manifold head, which provides a metered supply of adhesive to each nozzle assembly.
  • the nozzle assemblies each comprise a plurality of substantially parallel plate members defining a row of adhesive dispensing orifices at an exit surface.
  • the row of fluid exit orifices of each nozzle assembly forms a portion of a longer row formed by the plurality of adjacent nozzle assemblies arranged along a common end of the manifold head.
  • One or both sides of the manifold may be mounted adjacent to the side of a similarly constructed manifold head to form even longer rows of fluid exit orifices, thereby providing a modular meltblown adhesive dispensing system that accommodates substrates of any dimensional width.
  • the adhesive is applied to cover the full width of the substrate, and in other applications, it is desirable to apply the adhesive only to selected sections or areas of the substrate, leaving other sections or areas of the substrate free of adhesive. This is true, for example, in applications where a fold-over area of a substrate requires adhesive.
  • Folding is the process of folding a material around a partial edge by 90 degrees or 180 degrees.
  • the resulting folded area is often then attached to a support part using a suitable joining process, particularly gluing.
  • Such folding processes are used particularly in the automotive industry for trim parts.
  • the increasingly complex three-dimensional geometries of the trim parts pose a significant challenge for the joining processes used.
  • One particular problem is applying a corresponding adhesive pattern evenly and continuously in the folding areas using a nozzle arrangement guided by a robot arm.
  • FIG. 1 shows in a schematic and isometric view a conventional system 50 for applying thermoplastic adhesives 20 to a substrate 21 having corresponding folding areas.
  • the System 50 according to FIG. 1 consists essentially of a distributor head 30, which is preferably provided with a (in FIG. 1 not shown) and which is movable along a direction of movement relative to the substrate 21.
  • a nozzle arrangement 101 is preferably interchangeably connected to the distributor head 30.
  • the distributor head 30 serves to supply the thermoplastic adhesive 20 to be sprayed and, if appropriate, forming air, etc., to the nozzle arrangement 101 in a suitable manner.
  • the nozzle arrangement 101 used in the conventional system 50 for applying thermoplastic adhesives 20 to a substrate 21 has a base body 102 which, as seen in plan view, is at least substantially rectangular and which is connected to the mounting area of the distributor head 30.
  • an outlet nozzle 105 is formed on the front side surface of the base body 102 of the nozzle arrangement 101, wherein the outlet opening of the outlet nozzle 105 is designed such that a main flow axis predetermined by the outlet opening, along which the adhesive jet 20 emitted by the outlet nozzle moves, encloses a right angle (90 degrees) with the front side surface of the base body 102.
  • the fundamental problem with this design of the nozzle arrangement 101 is that when the distributor head 30 moves relative to the substrate 21 in the direction of the FIG. 1 In the direction of movement indicated by the arrow, there is a risk that, due to the complex three-dimensional geometry of the substrate 21, the distributor head 30 either comes into contact with the substrate 21 or certain areas of the substrate 21, in particular areas in a folding area of the substrate 21, can no longer be reached by the nozzle arrangement 101.
  • the printed matter DE 23 56 229 A1 relates to an atomizer nozzle with one or more passages for the material to be atomized and for at least one propellant gas, which forms a gas vortex outside the atomizer nozzle.
  • the atomizer nozzle known from this prior art is used in particular for spraying metal particles or for thin metallic coatings and the like.
  • the atomizer nozzle is designed to atomize the liquid containing the metal particles to be sprayed and to convert them into a kind of liquid veil.
  • the DE 23 56 229 A1 taught to arrange the fluid channels for the propellant gas at the end of the nozzle outlet area of the atomizer nozzle in a centrally offset and not concentric manner in order to set the liquid to be sprayed into rotation.
  • the DE 23 56 229 A1 known atomizing nozzle is at least in principle suitable for producing thin metallic coatings to spray the liquid with the metal particles in a sufficient manner, however, this is not or at least not directly transferable to applications according to the present invention, in which in particular thermoplastic adhesives are to be transferred to a substrate.
  • the invention is therefore based on the object of specifying a nozzle arrangement for applying fluids, in particular thermoplastic adhesives, to a substrate, wherein the nozzle arrangement allows the thermoplastic adhesive or the fluid to be applied in a targeted manner in a sufficiently atomizing manner, even in the case of complicated geometries of the substrate, but also in the case of deviating process parameters.
  • thermoplastic adhesives to substrates with a correspondingly complex geometry.
  • the present invention relates in particular to a nozzle arrangement for applying fluids, in particular thermoplastic adhesives, to a substrate, wherein the nozzle arrangement has a spray nozzle which can preferably be used interchangeably with a mounting region of a distributor.
  • the invention provides in particular that the spray nozzle of the nozzle arrangement is designed as a relatively long finger spray nozzle which has a relatively small diameter in order to enable the fluid (in particular the thermoplastic adhesive) to be applied in a targeted manner using the spray nozzle even to areas of the substrate which would otherwise be difficult to access.
  • the spray nozzle in order to design the finger spray nozzle, a two-part construction of the spray nozzle is provided, wherein the spray nozzle has a nozzle body, in particular a rod-shaped nozzle body, extending in the longitudinal direction of the spray nozzle as the first component and a nozzle housing as the second component, in which the nozzle body is received or can be received at least in some areas.
  • At least one first fluid channel and preferably precisely one (single) first fluid channel, is formed in the nozzle body, which is in particular a rod-shaped one, for the fluid to be applied to the substrate.
  • This preferably single first fluid channel extends in particular coaxially to the longitudinal axis of the nozzle body, which is in particular a rod-shaped one.
  • the spray nozzle of the nozzle arrangement according to the invention is designed to deliver the fluid, and in particular the thermoplastic adhesive, at the end-side nozzle outlet region of the spray nozzle undeflected, in particular not spirally deflected, but rather in an atomized solid cone.
  • the fluid is delivered at the end-side nozzle outlet region of the spray nozzle in a round, solid cone that is as perfect as possible. Dispensing the fluid at the end-side nozzle outlet region of the spray nozzle in the form of an atomized solid cone has the decisive advantage that the nozzle arrangement does not always have to be aligned accordingly with regard to the surface of the substrate when applying the fluid.
  • a plurality of second fluid channels for shaping air are formed at least in regions between a lateral surface of the nozzle body and an inner surface of the nozzle housing of the spray nozzle.
  • the invention is characterized in particular in that the second fluid channels extend - over their entire length - in the longitudinal direction of the spray nozzle and parallel to the first fluid channel and open into a conical or cone-shaped gap space at an end-side nozzle outlet region of the spray nozzle, wherein the conical or cone-shaped gap space tapers in the direction of a nozzle outlet opening of the nozzle body.
  • the end nozzle outlet area of the spray nozzle is designed in particular as a full-cone atomizing nozzle with internal mixing of the fluid to be applied to the substrate and the shaping air.
  • the second fluid channels open into the conical or cone-shaped gap in a straight line such that the shaping air emitted by the second fluid channels is deflected only in the direction of the nozzle outlet opening of the nozzle body, but not perpendicular to the longitudinal direction of the nozzle body.
  • the nozzle body is conical or tapered at the end nozzle outlet region of the spray nozzle.
  • the nozzle housing is also conical or tapered at the end nozzle outlet region of the spray nozzle, with the conical or tapered gap being formed between the conical or tapered end region of the nozzle body, on the one hand, and the conical or tapered end region of the nozzle housing, on the other hand.
  • the distance between the conical or tapered outer surface of the end portion of the nozzle body and the conical or tapered inner surface of the end portion of the nozzle body is 0.1 mm to 0.4 mm, and preferably 0.2 mm to 0.3 mm.
  • the distance is preferably constant.
  • implementations of the nozzle arrangement according to the invention provide for the first fluid channel to open into the conical or tapered gap space opposite the nozzle outlet opening of the nozzle body. This ensures that internal mixing can be achieved in the conical gap space.
  • At the end-side nozzle outlet area of the spray nozzle at least the inner surface of the nozzle housing has a tapered shape in the direction of the nozzle outlet opening of the nozzle body and in particular a conical shape of the Nozzle body has a conical shape adapted to it, in such a way that two spaced-apart hollow cones are formed, between which the conical or cone-shaped gap area is formed.
  • the nozzle body has a shape tapering in the direction of the nozzle outlet opening of the nozzle body, in particular at least substantially conical or cone-shaped with a cone or cone angle of preferably 30° to 120° and in particular with a cone or cone angle of approximately 50° to approximately 100°.
  • the nozzle housing is designed at least in regions as a sleeve-shaped body which surrounds the nozzle body at least in regions.
  • the nozzle housing is or can be fastened, preferably together with the nozzle body, to a connection area of a connection body of the nozzle arrangement, in particular in a detachable and/or replaceable manner.
  • a compression fitting effected by a union nut is used at the connection area of the connection body to fasten the nozzle housing with the nozzle body to the connection area of the connection body.
  • the nozzle body which is particularly rod-shaped.
  • the at least one first fluid channel extending in particular coaxially to the longitudinal axis of the nozzle body is formed as a through-bore in the rod-shaped nozzle body.
  • the rod-shaped nozzle body in particular, to have a polygonal cross-sectional profile at least in some areas.
  • the individual second fluid channels are formed in the area of the surfaces of the polygonal cross-sectional profile.
  • the rod-shaped nozzle body has in particular a hexagonal cross-sectional profile with a diameter of 6 mm to 10 mm and a key surface dimension of the hexagon between 5 mm and 9 mm.
  • a total of six second fluid channels are formed due to the hexagonal cross-sectional profile when the rod-shaped nozzle body is accommodated in the nozzle housing.
  • the diameter of the rod-shaped nozzle body is between 6 mm and 12 mm, and preferably between 6 mm and 10 mm. These dimensions allow for a particularly "slim" finger spray nozzle.
  • the nozzle body in particular a rod-shaped nozzle body, has at least in some regions an at least substantially circular-cylindrical cross-sectional profile, wherein groove regions extending parallel to the longitudinal axis of the nozzle body are formed in the lateral surface of the circular-cylindrical nozzle body to form the second fluid channels.
  • the second fluid channels should be formed uniformly over the lateral surface of the nozzle body and, in particular, in an equidistant manner from one another.
  • the nozzle body at least in the region in which it is received by the nozzle housing, is designed as a substantially cylindrical nozzle body, at least in some regions, wherein groove regions extending in the longitudinal direction of the spray nozzle and/or recessed regions extending in the longitudinal direction of the spray nozzle with respect to the lateral surface of the cylindrical body are formed in the substantially cylindrical nozzle body, which regions, together with the inner surface of the nozzle housing, at least in some regions delimit the second fluid channels.
  • At the end nozzle outlet region of the spray nozzle at least the inner surface of the nozzle housing has a conical shape that tapers in the direction of the nozzle outlet opening of the nozzle body and is in particular adapted to a conical shape of the nozzle body.
  • This aspect is a particularly simple to implement but nevertheless effective measure to achieve the most perfect cone shape and atomization of the fluid delivered from the first fluid channel at the nozzle outlet opening of the nozzle body.
  • grooves and/or recesses are formed in the nozzle body at the end nozzle outlet area of the spray nozzle, each of which is fluidly connected to one of the second fluid channels. In this way, the shaping air transported by the second fluid channels can be delivered in a targeted manner to the end nozzle outlet area of the spray nozzle.
  • the nozzle body preferably has a conical shape tapering in the direction of the nozzle outlet opening of the nozzle body with a cone angle of preferably 30 degrees to 120 degrees and in particular with a cone angle of 50 degrees to 100 degrees.
  • the nozzle body has a length of 20 mm to 100 mm, viewed in the longitudinal direction of the spray nozzle, and preferably a length of 30 mm to 80 mm, and more preferably a length of 40 mm to 60 mm.
  • the nozzle body with the nozzle housing has an average diameter of no more than 20 mm and preferably an average diameter of no more than 15 mm.
  • the nozzle body with the nozzle housing has an average diameter of no more than 20 mm and preferably an average diameter of no more than 15 mm.
  • a preferably annular region is formed in a region between the connection body and the spray nozzle, which region is fluidly connected on the one hand to a source of shaping air, in particular to a compressed air source, and on the other hand to the second fluid channels of the spray nozzle.
  • connection area of the connection body By providing such a preferably annular region at the connection area of the connection body, it is ensured that a preferably equal and constant amount of shaping air per unit of time is fed into every second fluid channel.
  • a seal in particular in the form of a sealing ring, is assigned to the nozzle body for separating the in particular annular region for shaping air and a region preferably arranged axially with respect to the longitudinal axis of the nozzle body, via which region the fluid to be applied to the substrate can be fed into the first fluid channel of the spray nozzle.
  • the invention further relates to the use of the aforementioned nozzle arrangement according to the invention for applying a fluid, in particular thermoplastic adhesive, to a folding area of a component.
  • the invention relates to a system for applying fluids, in particular thermoplastic adhesives, to a substrate, wherein the system comprises a distributor head that is movable relative to the substrate along a direction of movement.
  • the distributor head is connected or connectable to a robot arm.
  • the system further comprises at least one nozzle arrangement of the type according to the invention described above, which is preferably interchangeably connected to the distributor head in a mounting area of the distributor head.
  • the nozzle arrangement according to the invention makes it possible, in particular, that when the fluid is applied to the substrate, even particularly complex geometric regions of the substrate can effectively reach the area of the nozzle outlet opening of the spray nozzle without contact occurring between the nozzle arrangement or the distributor or distributor head and the substrate.
  • the invention further relates to a method for applying fluids, in particular thermoplastic adhesives, to a substrate, wherein for this purpose a nozzle arrangement is moved relative to the substrate in a direction of movement, wherein the nozzle arrangement is in particular a nozzle arrangement of the type according to the invention described above.
  • a fluid jet is further discharged through the nozzle outlet opening of the nozzle body of the nozzle arrangement, in particular during the movement of the nozzle arrangement relative to the substrate.
  • the fluid jet emitted through the nozzle outlet opening of the nozzle body is preferably deflected with the aid of shaping air, in particular for generating a predetermined pattern of the fluid jet to be applied to the substrate.
  • the substrate is a component with a folding region, wherein during the discharge of the fluid jet through the nozzle outlet opening of the nozzle body, the nozzle arrangement is moved at least partially into the folding region of the substrate.
  • thermoplastic adhesives make good binders. They harden quickly, which is a particular advantage when the adhesive is applied gradually and the parts to be bonded are then bonded immediately. The resulting bond is very strong. Furthermore, the range of components that can be used to make thermoplastic adhesives is so wide that a suitable adhesive composition can easily be created for a given purpose.
  • thermoplastic adhesive cannot be applied in an automated manner, or can only be applied with considerable difficulty, to certain selected areas of a substrate, especially those with a complex geometry. This applies particularly to the edge-folding areas of substrates formed as molded bodies.
  • FIG. 1 is shown schematically and in an isometric view, a conventional system 50 with which a thermoplastic adhesive 20 is applied in an automated manner to specific areas of a substrate formed as a molded part.
  • the conventional system 50 for applying thermoplastic adhesives 20 to a substrate 21 formed as a molded body has a distributor head 30, which is preferably provided with a FIG. 1 not shown, and which is movable along a direction of movement relative to the substrate 21 with the aid of the robot arm.
  • the conventional system 50 for applying thermoplastic adhesives further comprises a nozzle arrangement 101, which is preferably interchangeably connected to the distributor head 30 in a mounting area of the distributor head 30.
  • the nozzle arrangement 101 is essentially formed by an approximately rectangular base body 102, via which the nozzle arrangement 101 is connected to the mounting area of the distributor head 30.
  • This - seen in plan view - essentially rectangular base body 102 of the nozzle arrangement 101 has a front side surface 103, in which a Outlet nozzle 105 is formed.
  • FIG. 2 in a schematic and isometric view, an exemplary embodiment of the system 19 according to the invention is shown, wherein this system 19 serves for applying fluids 20, in particular thermoplastic adhesives, to a substrate 21, and wherein the system 19 essentially comprises a distributor head 2, which is preferably connected or connectable to a robot arm, and which is movable along a direction of movement relative to the (in FIG. 2 not shown) substrate 21 is movable.
  • a distributor head 2 which is preferably connected or connectable to a robot arm, and which is movable along a direction of movement relative to the (in FIG. 2 not shown) substrate 21 is movable.
  • the system 19 shown schematically further comprises a nozzle arrangement 1 which is preferably interchangeably connected to the distributor head 2 in a mounting area of the distributor head 2.
  • FIG. 2 The structure and functioning of the FIG. 2
  • the nozzle arrangement 1 used in the schematically shown system 19 are described below with reference to the illustrations in FIG. 4 to FIG. 6 described in more detail.
  • FIG. 3 shows in a schematic and isometric view an alternative embodiment of the system 19 according to the invention for applying fluids 20 to a (also in FIG. 3 not shown) substrate 21.
  • the FIG. 3 schematically shown exemplary embodiment of the system 19 according to the invention essentially from that shown in FIG. 2 schematically shown system 19 by the structure of the distributor head 2, to which the nozzle arrangement 1 according to the invention is connected.
  • the nozzle arrangement 1 serves for applying fluids 20, in particular thermoplastic adhesives, to a substrate 21, wherein the nozzle arrangement 1 has a connecting body 9 which can preferably be exchangeably connected to a mounting area of a distributor 2 and a spray nozzle 3 which can preferably be exchangeably connected to the connecting body 9.
  • the spray nozzle 3 has an essentially two-part structure, namely consisting of a nozzle body 5 extending in the longitudinal direction 4 of the spray nozzle 3, in particular a rod-shaped nozzle body, and a nozzle housing 7.
  • the nozzle housing 7 has a sleeve-shaped base body.
  • a first fluid channel 6 for the fluid 20 to be applied to the substrate 21 is formed in the rod-shaped nozzle body 5.
  • the first fluid channel 6 extends in particular coaxially to the longitudinal axis of the (rod-shaped) nozzle body 5.
  • a plurality of second fluid channels 10 are formed, which serve to supply shaping air to the end nozzle outlet area 11 of the spray nozzle 3.
  • the shaping air supplied by means of the second fluid channels 10 serves to to cause atomization of the fluid 20 discharged or to be discharged from the nozzle outlet opening 8 of the nozzle body 5.
  • the nozzle housing 7 of the spray nozzle 3 is designed, at least in regions, as a sleeve-shaped body which at least in regions surrounds the (rod-shaped) nozzle body 5.
  • the nozzle housing 7 is fastened, preferably together with the nozzle body 5, to the connection area 12 of the connection body 9, in particular in a detachable and/or replaceable manner, in particular by means of a compression fitting effected by a union nut 13 on the connection area 12 of the connection body 9.
  • the (particularly rod-shaped) nozzle body 5 is formed, at least in the region in which it is accommodated by the nozzle housing 7, at least in regions as a substantially cylindrical nozzle body 6, wherein in the substantially cylindrical nozzle body 5 groove regions extending in the longitudinal direction 4 of the spray nozzle 3 or alternatively (as in FIG. 4 indicated) extending in the longitudinal direction 4 of the spray nozzle 3 and recessed with respect to the lateral surface of the cylindrical nozzle body 5.
  • regions (groove regions or recessed regions 15) together with the inner surface of the nozzle housing 7, at least partially delimit the individual second fluid channels 10 of the spray nozzle 3.
  • the rod-shaped nozzle body 5 has a polygonal cross-sectional profile at least in some areas in order to form the corresponding second fluid channels 10 over the surface areas 15 of the polygonal cross-sectional profile (and the inner surface of the nozzle housing 7).
  • the particularly rod-shaped nozzle body 5 has a hexagonal cross-sectional profile at least in some areas in order to form a total of six second fluid channels 10 together with the nozzle housing 7.
  • the diameter of the rod-shaped nozzle body 5 is preferably in a range between approximately 6 mm and approximately 12 mm and particularly preferably in a range between approximately 6 mm and approximately 10 mm.
  • the diameter of the rod-shaped nozzle body 5 is in particular about 6 mm to about 10 mm with a key surface dimension of the hexagon between 5 mm and 9 mm.
  • the nozzle body 5 of the spray nozzle 3 is provided at least in some areas with a substantially circular-cylindrical cross-sectional profile, wherein groove regions (not shown in the drawings) extending parallel to the longitudinal axis of the nozzle body 5 are formed in the lateral surface of the circular-cylindrical nozzle body 5 to form the second fluid channels 10.
  • the second fluid channels 10 should be formed uniformly over the lateral surface of the nozzle body 5 and in particular equidistant from one another in order to be able to effect the best possible atomization of the fluid discharged from the nozzle outlet opening 8 of the nozzle body 5 at the nozzle outlet region 11.
  • the invention provides that the second fluid channels 10 extend - over their entire length - in the longitudinal direction 4 of the spray nozzle 3 parallel to the first fluid channel 5 and open into a conical or cone-shaped gap space 16 at an end nozzle outlet region 11 of the spray nozzle 3, wherein the conical or cone-shaped gap space 16 preferably tapers uniformly in the direction of the nozzle outlet opening 8 of the nozzle body 5.
  • the end nozzle outlet area 11 of the spray nozzle 3 is designed in particular as a full-cone atomizer nozzle, preferably with internal mixing of the fluid 20 to be applied to the substrate 21 and the shaping air.
  • the nozzle body 5 is conical or cone-shaped at the end-side nozzle outlet region 11 of the spray nozzle 3
  • the nozzle housing 7 is also conical or cone-shaped at the end-side nozzle outlet region 11 of the spray nozzle 3, the conical or cone-shaped gap 16 being formed between the conical or cone-shaped end region of the nozzle body 5 on the one hand and the conical or cone-shaped end region of the nozzle housing 7 on the other hand.
  • a conical or cone-shaped outer surface of the end region of the nozzle body 5 and a conical or cone-shaped inner surface of the end region are each designed without contours in a macroscopic area.
  • a distance between the conical or cone-shaped outer surface of the end portion of the nozzle body 5 and the conical or cone-shaped inner surface of the end portion of the nozzle housing is 0.1 mm to 0.4 mm and preferably 0.2 mm to 0.3 mm.
  • FIG. 6 It can also be seen that the first fluid channel 6 opens into the conical gap 16 opposite the nozzle outlet opening 8 of the nozzle body 5.
  • the nozzle body 5 has a conical or tapered shape tapering towards the nozzle outlet opening 8 of the nozzle body 5 with a conical or tapered angle of preferably 30° to 120° and in particular with a conical or tapered angle of preferably 50° to 100°.
  • a conical or tapered angle of preferably 30° to 120° and in particular with a conical or tapered angle of preferably 50° to 100°.
  • At the end nozzle outlet area 11 of the spray nozzle 3 at least the inner surface of the nozzle housing 7 has a tapered shape in the direction of the nozzle outlet opening 8 of the nozzle body 5 and in particular a conical or conical shape.
  • a spacing region 14 is preferably formed integrally with the nozzle body 5, in such a way that the conical-conical gap space 16 is formed between the nozzle body 5 and the nozzle housing 7, via which gap space 16 an atomization of the fluid 20 discharged or to be discharged from the nozzle outlet opening 8 of the nozzle body 5 is effected with the aid of the shaping air discharged from the second fluid channels 10 at the nozzle outlet region 11.
  • FIG. 5 The sectional view in FIG. 5 It can be seen that in a state of the spray nozzle 3 mounted on the connection area 12 of the connection body 9, a preferably annular area 17 is formed in an area between the connection body 9 and the spray nozzle 3, which area is not connected in terms of flow to a source of shaping air, in particular to a compressed air source.
  • FIG. 5 shown, and on the other hand is fluidly connected to the second fluid channels 10 of the spray nozzle 3.
  • a seal 18, in particular in the form of a sealing ring, is assigned to the nozzle body 5 in order to separate the in particular annular region 17 for shaping air and a region preferably arranged axially with respect to the longitudinal axis of the nozzle body 5, via which region the fluid to be applied to the substrate 21 is fed into the first fluid channel 6 of the spray nozzle 3.
  • the invention further relates to the use of the nozzle arrangement 1 according to the invention for applying a fluid, in particular thermoplastic adhesive, to a folding area of a component, as shown schematically and in an isometric view in FIG. 7 is shown.
  • a fluid in particular thermoplastic adhesive
  • thermoplastic adhesive jet emitted from the end nozzle outlet area 11 of the spray nozzle 3 in order to atomize the adhesive jet 20.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Nozzles (AREA)
EP24195702.6A 2023-10-10 2024-08-21 Ensemble buse pour l'application de fluides et système d'application de fluides Pending EP4537943A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102023127636.0A DE102023127636A1 (de) 2023-10-10 2023-10-10 Düsenanordnung zum auftragen von fluiden sowie system zum auftragen von fluiden

Publications (1)

Publication Number Publication Date
EP4537943A1 true EP4537943A1 (fr) 2025-04-16

Family

ID=92503666

Family Applications (1)

Application Number Title Priority Date Filing Date
EP24195702.6A Pending EP4537943A1 (fr) 2023-10-10 2024-08-21 Ensemble buse pour l'application de fluides et système d'application de fluides

Country Status (4)

Country Link
US (1) US20250114804A1 (fr)
EP (1) EP4537943A1 (fr)
CN (1) CN119793732A (fr)
DE (1) DE102023127636A1 (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3062455A (en) * 1959-11-27 1962-11-06 Gpe Controls Inc Jet pipe nozzle arrangement
DE1400690A1 (de) * 1959-09-16 1968-10-17 Auto Research Corp Schmiermittelverteilungssytem
DE2356229A1 (de) 1973-11-10 1975-05-22 Shigetake Tamai Zerstaeuberduese
EP0519363A1 (fr) * 1991-06-21 1992-12-23 Böllhoff Verfahrenstechnik Gmbh & Co. Kg Procédé et dispositif pour l'application de produits visqueux en forme de bande
EP0872580A1 (fr) 1997-04-14 1998-10-21 Illinois Tool Works Inc. Procédé et dispositif pour fusion-soufflage
US9446422B2 (en) * 2015-02-10 2016-09-20 Nordson Corporation Adhesive dispensing module and method of spraying a plurality of droplets of a liquid adhesive
CN110369169B (zh) * 2019-06-21 2021-04-20 汇专科技集团股份有限公司 雾化喷嘴及雾化装置

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29519681U1 (de) * 1995-12-12 1996-02-08 INT GmbH Ingenieurbüro für Neue Technologien, Anlagenbau, Verfahrenstechnik, ADFOSY, 33689 Bielefeld Klebstoffdüse zum streifenförmigen Auftragen eines Klebstoffs
CN115243797B (zh) * 2020-03-06 2024-10-11 诺信公司 带气体通道的流体分配喷嘴及其使用和组装方法
DE102020110184B4 (de) * 2020-04-14 2025-04-24 Illinois Tool Works Inc. Düsenanordnung zum auftragen von fluiden, verwendung der düsenanordnung sowie system zum auftragen von fluiden

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1400690A1 (de) * 1959-09-16 1968-10-17 Auto Research Corp Schmiermittelverteilungssytem
US3062455A (en) * 1959-11-27 1962-11-06 Gpe Controls Inc Jet pipe nozzle arrangement
DE2356229A1 (de) 1973-11-10 1975-05-22 Shigetake Tamai Zerstaeuberduese
EP0519363A1 (fr) * 1991-06-21 1992-12-23 Böllhoff Verfahrenstechnik Gmbh & Co. Kg Procédé et dispositif pour l'application de produits visqueux en forme de bande
EP0872580A1 (fr) 1997-04-14 1998-10-21 Illinois Tool Works Inc. Procédé et dispositif pour fusion-soufflage
US9446422B2 (en) * 2015-02-10 2016-09-20 Nordson Corporation Adhesive dispensing module and method of spraying a plurality of droplets of a liquid adhesive
CN110369169B (zh) * 2019-06-21 2021-04-20 汇专科技集团股份有限公司 雾化喷嘴及雾化装置

Also Published As

Publication number Publication date
US20250114804A1 (en) 2025-04-10
DE102023127636A1 (de) 2025-04-10
CN119793732A (zh) 2025-04-11

Similar Documents

Publication Publication Date Title
EP3900840B1 (fr) Agencement de buses permettant d'appliquer des fluides, utilisation de l'agencement de buses, ainsi que système d'application des fluides
DE1923234C3 (de) Verfahren und Düse zum luftlosen Umwandeln einer unter Überdruck strömenden Flüssigkeit
DE69505035T2 (de) Vorrichtung zum Versprühen einer Flüssigkeit, insbesondere einer hochviskosen Flüssigkeit mittels mindestens eines Hilfgases
EP0540774B1 (fr) Dispositif de pulvérisation de liquide
EP0577681B1 (fr) Tuyere a fente de distribution de liquides
EP1358945B1 (fr) Arrangement de buse pour un dispositif pour appliquer un matériau fluide sur un substrat
DE102018118738A1 (de) Grundkörper für eine Spritzpistole, Spritzpistolen, Spritzpistolen-Set, Verfahren zur Herstellung eines Grundkörpers für eine Spritzpistole und Verfahren zum Umrüsten einer Spritzpistole
DE10059406B4 (de) Spritzvorrichtung
DE102018118737A1 (de) Düse für eine Spritzpistole, Düsensatz für eine Spritzpistole, Spritzpistolen und Verfahren zur Herstellung einer Düse für eine Spritzpistole
DE102006005341B4 (de) Lackiervorrichtung sowie Farbwechseleinrichtung für eine Lackiervorrichtung
EP2879805B1 (fr) Ensemble buse
WO2014048642A1 (fr) Système de dosage, procédé de dosage et procédé de fabrication
EP3548186A1 (fr) Dispositif à buse à configuration d'ouvertures concave et procédé de distribution d'un milieu d'application visqueux
EP1280610B1 (fr) Buse melangeuse externe
DE102018127277A1 (de) Düsenanordnung und system zum auftragen von fluiden auf ein substrat sowie ein entsprechendes verfahren
EP4537943A1 (fr) Ensemble buse pour l'application de fluides et système d'application de fluides
DE19914040B4 (de) Sprühpistolen-Roboter-Adapter
DE69903811T2 (de) Verteilvorrichtung für ein fluid wie klebstoff
DE202010015304U1 (de) Düse
DE102011079982A1 (de) Sprühkopf für reaktive Kunststoffe
EP4259339A1 (fr) Dispositif pour pulvériser des milieux sur les côtés intérieurs de produits médicaux
EP2416875B1 (fr) Dispositif de traitement de produits particulaires comportant une buse à fentes à pulvérisation verticale
EP1054738B1 (fr) Tete de generateur de brouillard
DE102019106146A1 (de) Düsenanordnung zum auftragen von fluiden, system mit einer solchen düsenanordnung und verfahren zum auftragen von fluiden
EP4559581A1 (fr) Anneau d'air de moulage pour pulvérisateur rotatif et pulvérisateur rotatif avec anneau d'air de moulage

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20240821

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR