[go: up one dir, main page]

WO2008104267A1 - Presse à comprimés rotative pourvue d'un dispositif de lavage - Google Patents

Presse à comprimés rotative pourvue d'un dispositif de lavage Download PDF

Info

Publication number
WO2008104267A1
WO2008104267A1 PCT/EP2008/000900 EP2008000900W WO2008104267A1 WO 2008104267 A1 WO2008104267 A1 WO 2008104267A1 EP 2008000900 W EP2008000900 W EP 2008000900W WO 2008104267 A1 WO2008104267 A1 WO 2008104267A1
Authority
WO
WIPO (PCT)
Prior art keywords
tablet press
rotary tablet
washing
working space
press according
Prior art date
Application number
PCT/EP2008/000900
Other languages
German (de)
English (en)
Inventor
Hans Krämer
Original Assignee
Ima Kilian Gmbh & Co. Kg
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 Ima Kilian Gmbh & Co. Kg filed Critical Ima Kilian Gmbh & Co. Kg
Publication of WO2008104267A1 publication Critical patent/WO2008104267A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
    • B30B11/02—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses using a ram exerting pressure on the material in a moulding space
    • B30B11/08—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses using a ram exerting pressure on the material in a moulding space co-operating with moulds carried by a turntable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
    • B08B3/04—Cleaning involving contact with liquid
    • B08B3/10—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration
    • B08B3/12—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration by sonic or ultrasonic vibrations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/0082—Dust eliminating means; Mould or press ram cleaning means

Definitions

  • the invention relates to a rotary tablet press with a housing, with a rotatably mounted in the housing rotor having a Oberstempel Operationssring, a Unterstkov Entrysring and arranged between the punch guide rings Matrizenin, with a washing device, with which the rotor is washable by means of washing liquid, and with a in the housing trained, liquid-tight sealed working space, which can be filled with washing liquid for at least partial flooding of the working space and immersion of the rotor in a washing bath.
  • Rotary tablet presses with upper and lower punches which are guided in associated punch guide rings and with which in the matrices of a die plate tablets such as drug tablets, detergent tablets od.
  • a die plate tablets such as drug tablets, detergent tablets od.
  • the rotor driven by a suitable motor may, for example, have from about 8 up to 100 pressing stations, depending on the size and diameter of punch guide rings and die plate, and at speeds of e.g. revolve up to 150 rev / min.
  • the upper and lower punches are here by means of suitable rollers or slide tracks moved up and down to make the production of the tablets in the matrices.
  • the upper and lower punches are assigned sealing elements which are disclosed as bellows, as disclosed, for example, in WO 02/064 356 A1, or as sealing collars with wiper lips, as disclosed in WO 03/084 738 Al, may be executed.
  • these integrated washing devices are used with which the rotor and the entire working space in which the rotor is in operation can be cleaned with washing liquid.
  • the integration of automatic washing devices allows short changeover times to a different tablet geometry with high operational reliability.
  • the washing liquid is sprayed through nozzles with pressure of eg up to 6 bar in the working space and the surfaces of the stamp and the matrices or recordings for the matrices are cleaned with the washing liquid under pressure. Since all the parts coming into contact with the product to be produced are cleaned with the washing liquid, contamination of a subsequent batch can be prevented to the greatest possible extent and, at the same time, dangers to personnel are largely avoided in the case of harmful tablet dusts.
  • the object of the invention is to provide a rotary tablet press, which is provided with a washing device and the open after performing a Waschvorgangs- with the washing device without health hazards for staff and / or possibly even without further Nachthesesfor the production of tablets from others Starting materials can be used.
  • a liquid-tight sealed working space is formed in the housing, which can be filled with washing liquid for immersing the rotor in a washing bath.
  • the flooding of the working space with the washing liquid such as water has the advantage that the die plate, the punch heads, the dies, the underside of Oberstkov Adjustsrings and sealing elements that surround the punch shafts, therefore all coming into contact with the product to be pressed (powder) parts , wetted on all sides with the washing liquid and be lapped by this.
  • the cleaning effect of the washing bath is additionally increased by the use of ultrasound or ultrasound cleaning.
  • the working space according to the invention has at least one ul associated with ultrasonic transducer, which can be applied to all located in the washing bath parts of the rotor with ultrasound to enhance the cleaning effect of the wash bath.
  • the sound waves generated by the at least one ultrasonic transducer propagate in the liquid medium of the washing bath in the form of a longitudinal wave, which causes periodic pressure fluctuations, which lead to a state change in the washing liquid without heat exchange, whereby local evaporation with subsequent blistering at the surface the parts to be cleaned can occur.
  • cavitation occurs particularly strongly on the solid surfaces of the parts to be cleaned, since the sound waves are reflected there and there is an increase in pressure. Since at the same time strong turbulences occur, not only the particles to be dissolved of the last processed with the rotary tablet press product are solved, but also by local currents, which arise in the vicinity of the interface between the liquid and the surface of the parts to be cleaned in the washing of removed from the surface.
  • the size and power of the ultrasonic transducer and possibly also the washing liquid may vary depending on the materials of the rotary tablet press and possibly with this product to be compressed, usually with a suitable ultrasonic transducer as ultrasonic transducer mechanical vibrations in the frequency range between about 20 kHz and 400 kHz can be generated, wherein for the ultrasonic cleaning depending on the particle size in particular frequencies in the range of about 25 kHz to 150 kHz, but also can be used to over 200 kHz for ultrasonic cleaning advantageous.
  • at least one ultrasonic transducer is arranged outside the working space.
  • the ultrasound transducer can preferably be associated with a base pan with which the sealed working space in which the rotor is located in the production operation of tablets is bounded at the bottom.
  • the arranged outside the working space ultrasonic transducer may in particular consist of a suitable vibrating element such as a plate oscillator.
  • at least one or a further ultrasonic transducer can be arranged within the working space.
  • the ultrasound transducer arranged within the working space can in particular be designed as an ultrasonic rod oscillator, as a submersible transducer or as a sonotrode.
  • At least one ultrasound generator connected to the ultrasound transducers is expediently provided for generating electrical oscillations, wherein a plurality of ultrasound frequencies for ultrasound cleaning can be set, particularly preferably with one ultrasound generator or possibly with several ultrasound generators . are producible.
  • a plurality of ultrasound frequencies for ultrasound cleaning can be set, particularly preferably with one ultrasound generator or possibly with several ultrasound generators . are producible.
  • low-frequency ultrasound can attack the surface of the parts to be cleaned, so that possibly by switching the power of the ultrasonic generator to high-frequency areas with frequencies of about 60 kHz to 200 kHz, a gentler cleaning of the parts of the rotor and other parts of the rotary tablet press are effected in the working space can.
  • the ultrasonic generator may also consist of a multi-frequency generator in order to achieve a coarse, fine and fine cleaning of the rotor during a washing cycle with different frequencies.
  • a special vibrating element can be provided in the ultrasonic transducer for each frequency or multifrequency ultrasonic vibrating elements are used.
  • a preferably controllable heating device and / or a cooling device for controlling or preferably regulating the temperature of the washing bath can be provided. Since most of the cleaning effect with ultrasound at higher temperatures of the wash bath is higher than at lower temperatures, therefore, the effectiveness of ultrasonic cleaning while reducing the downtime of the rotary tablet press can be further improved.
  • the working space preferably has at least one openable side wall which can be pressed or pulled against a housing-side seal by means of at least one closing means.
  • the seal is designed as a sealing channel with an inner sealing elements, an outer sealing element and a chamber located between them, wherein the chamber between the sealing elements can be acted upon with compressed air to increase the safety against liquid leakage.
  • the pressurization of the chamber with compressed air can on the one hand prevent washing liquid from escaping at the seal in the case of slight leaks, since first the compressed air forces the washing liquid against the direction of flow. would urge, and also can be checked at any time by attaching, for example, sensors in the chamber, whether the sealing elements fulfill their sealing function optimally or substantially optimally.
  • a maintenance interval can then be displayed automatically, for example, on a control unit for the rotary tablet press.
  • a closing means at least one manually operable handle can be provided in order to allow good access to the working space at all times.
  • at least one sensor for detecting the current position of the side wall and / or the position of the handle is present.
  • a further closing means may be designed as a motor-operated locking mechanism.
  • the motor-locking mechanism can be coupled in particular to the previously described sensor and therefore only after closing the handle and reaching a first closed position of the side wall, the motor-locking mechanisms are operated. Possibly. It is sufficient to operate the motor locking mechanism only in the wash cycle, since only then the maximum seal is needed. This can extend the life of the seal used again, since their sealing function is required only in the washing mode.
  • At least one fill level sensor in particular a sonar fill level sensor, may be provided for determining the fill level of the wash bath in the work space.
  • the fill level sensor can preferably be connected to a higher-level control unit or the like. connected, in particular in dependence on the detection signal of the level sensor, to interrupt the supply of washing liquid and / or to control a drain of washing liquid, if e.g. the rotor is additionally rotated during a washing cycle with washing bath and ultrasound application, e.g. to improve the removal of the particles dissolved with ultrasound on the rotor.
  • stirring blades or the like be arranged in the working space to produce additional movement or flow in the washing bath in the washing cycle at flooded working space.
  • a leakage channel for draining the washing liquid can be formed in the lower punch guide ring for each lower punch guide.
  • the leakage channels should preferably only fulfill their discharge function if leaks occur unnoticed on individual sealing elements of the lower punch guides. Due to the inventively provided leakage channels even leaks of individual sealing elements could not lead to damage to the guides in Unterstempel Installationsring and / or contamination of an oil or machine sump with washing liquid such as water in particular.
  • a sealing collar can be attached to the outer circumference of the lower die guide ring.
  • the sealing collar can have a sealing lip which seals against the housing or a base trough of the rotary tablet press in the assembly or operating state of the rotor and forms a dynamic seal during the rotation of the rotor. It is particularly advantageous if the sealing collar and / or the sealing lip extend axially downwards beyond the mouth points of the leakage channels.
  • a collecting line can moreover preferably be formed in the housing, via which the washing liquid derived from the leakage channels can be fed to a collecting container or to a drain. It is particularly advantageous if the manifold and / or the collecting container is associated with a sensor for detecting washing liquid inlet. With the corresponding sensor can thus be determined during the washing or cleaning phase within a very short time, if all sealing elements for the lower punch guides in the lower punch guide ring and / or have the dynamic seal seal gasket leaks. In addition, the washing phase may occur upon detection of wash liquid entry be switched off at short notice and automatically.
  • a rotary tablet press with washing device and a sensor the.
  • Detects a Wasch sometimeskeitseintritt in the leakage channels or the manifold allows a highly reliable procedure when cleaning a rotary tablet press by the washing process is turned off if the washing liquid inlet is detected by the sensor.
  • the provision of a single sensor is sufficient if the manifold is formed at the bottom of an annular channel, which is arranged below the lower punch guide ring and the dynamic seal in the housing. It is particularly favorable when the annular channel to the manifold is sloping down or is formed.
  • a sealing ring seat for a preferably additional sealing ring is formed in the lower punch guide ring in each guide, opens at the level or above the associated leakage channel with its upper mouth opening into the associated guide.
  • This additional sealing ring for example, from an O-ring or the like. can exist and sealingly rests on the shaft of the lower punch, prevents any leaks occurring in the stamp guides associated sealing that a entering through a leaking sealing washer entering a greater depth in the guides and contaminate there befindliches lubricant or reduce its sliding effect.
  • the interaction of the additional sealing ring with the leakage channel ensures that the washing liquid does not accumulate above the sealing ring but is discharged via the leakage channel.
  • the sealing ring seat is formed below a fastening means for the sealing member and / or the sealing member may in particular consist of a bellows seal.
  • all interchangeable sealing elements can also. consist of seals with abutting the stamp shanks wiper lips.
  • Step comprises the filling of a liquid-tight in the housing of a rotary tablet press trained working space with washing liquid for exchanging a rotor in a washing bath comprises, according to the invention during at least a portion of a wash cycle, the washing bath is subjected to ultrasound.
  • a procedure is advantageous in which the entire rotor including die plate, punch heads and sealing elements on the punches and possibly the working space facing the underside of Oberstempel Adjustsrings is washed by the washing bath.
  • the rotor is set in rotation during the ultrasonic cleaning in order to generate a flushing flow in the washing bath, which flows around all parts of the rotor or working space which come into contact with the material to be pressed at a suitable flow rate .
  • the washing bath can be heated before and / or during the ultrasonic cleaning by means of a separate heating device.
  • the wash bath can be acted upon during a wash cycle with different frequencies.
  • Fig. 1 schematically greatly simplified a rotary tablet press according to the invention with rotor, washing device and inventive ultrasonic cleaning, - and
  • Fig. 2 shows schematically a partial section of a rotary tablet press with Unterstempel Adjustsring and die plate in a sectional view.
  • a total of reference numeral 1 denotes a schematically greatly simplified illustrated rotary tablet press.
  • the rotary tablet press 1 for producing, for example, medicament Medium tablets has a housing 2, a base construction 3, an upper cover 4 and a bottom trough 9, with which a working space 5, in which a rotor designated generally by 10 is arranged, is enclosed in a liquid-tight and / or dust-tight manner.
  • the housing 2 has access to the working area at least one openable and closable door opening, through which the rotor 10 can be converted or optionally expanded.
  • a base trough 7 is supported with the base construction 3, on or on which, inter alia, a motor 8, not shown in detail, for driving the rotor 10 of the rotary tablet press 1 is arranged.
  • the rotor 10 comprises in known manner a lower punch guide ring 11 with numerous, preferably from guide holes sliding guides 12 for concentrically about the rotational axis D of the rotor 10 arranged and vertically movable lower punch 13, a Oberstkov Entrysring 14 again consisting of holes sliding guides 15 for vertically movable and arranged concentrically about the axis of rotation D upper punch 16 and arranged between the Oberstkov Operationssring 14 and the lower punch guide ring 11 die plate 17 arranged according to the number of upper punches 16 and lower punches 13 and aligned on these or their guides 13, 15 matrices 18.
  • the matrices can be made by compressing suitably supplied powder the desired tablets (not shown).
  • the upper punch guide ring 14, the lower punch guide ring 11 and the die plate 17 are designed as separate components. Individual or several of these individual elements could also be formed in one piece.
  • the matrix disc or the matrices could also consist of several segments.
  • the individual elements of the rotor 10 are held together by means of a fastening screw 19, which is only indicated, and which is preferably arranged on the axis of rotation D.
  • a slide track 59 is formed, with which the head ends of the lower punch 13 slidably guided in a conventional manner and on and be moved off.
  • the upper head ends of the upper punches 16 are moved in the embodiment shown by means of rollers 20 in the associated guides 15 and down to press the tablets in the matrices 18 during operation and eject at the end of the pressing operation up or down from the dies 18.
  • the rotary tablet press 1 is further provided with a washing device, of which only those projecting into the working space 5 washing nozzles 21 and 22 together with associated supply lines 23, 24 are shown in FIG.
  • a suitable washing liquid in particular water to the nozzles 21 via the top cover 4 and to the nozzles 22 via the vertical struts of the housing 2 and the working space 5 is carried out sealed down by means of the trough 9 to in a Wash cycle to clean arranged in the working space 5 in the operational use and in operating position elements of the rotor 10 and the housing walls with the washing liquid to clean this with a pressure of eg 6 bar and a maximum throughput of, for example, 300 liters / min exits the nozzles 21, 22, while the rotor 10 rotates with the housing closed.
  • bellows seals 26 associated with the lower punch guides 12, which are fastened in the guides 12 or around the guides 12 in the lower punch guide ring 11, and the bellows 27 associated with the guides 15 of the upper punch 16 in the washing mode prevent the detergent liquid from entering the sliding guides 12 or 15 can occur.
  • Bellows seals 26, 27 are associated with the punch guides 12 and 15 also in conventional rotary tablet presses, in order to prevent the normal operation of the rotor 10, when pressed with the upper and lower punches 16, 13 in the matrices 18 tablets, to prevent dust or powder in the sliding guides enters.
  • An exchange of the bellows seals 26, 27 takes place either after predetermined maintenance intervals or visible damage to the sealing elements (bellows (26, 27)).
  • each guide 12 for the lower punch 13 is associated with a leakage channel 30 in the illustrated embodiment, as shown in the enlarged detail view of a partial section the rotary tablet press 1 in Fig. 2 can be seen.
  • FIG. 2 only a partial section of the lower die guide ring 11 and a partial section of the die plate 17 together with a section of the trough 9 are shown in section, wherein a circumference of the rotary tablet press 1 or of the lower die guide ring 11 and die plate 17 is distributed Variety of identical arrangements of punch guides 12, lower punches 13, dies 18 and leakage channels 30 and associated upper punch are arranged.
  • Each leakage channel 30 extends obliquely, inclined in the illustrated embodiment by an angle of 45 ° relative to the central axis M of the guides 12 for the lower die 13, outwardly and opens into a circumferential groove 36 on the outer periphery 28 of the lower punch guide ring 11.
  • the circumferential groove 36 is preferably formed around a constant cross-section and has a curved groove bottom 37, a likewise curved groove inner side 38 and an obliquely upwardly rising Nutoberflanke 39, which comprises the mouth point 31 of the leakage channel 30 in the circumferential groove 36.
  • the upper end 32 of the leakage channel 30 opens substantially at the level of a sealing ring seat 29 for a sealing ring 40 at the bottom of a from the top 11 'of the lower punch guide ring 11th extending and concentric with the guide 12 executed blind hole (stepped step) of the guide bore 12 is disposed in the associated guide bore 12 for the lower punch 13.
  • the sealing ring 40, the sealing surface of the shaft of the lower punch 13 rests sealingly, this sits below a Fixing ring 45 to which the Faltenbalgdich- lines 26 for the lower punch 13 and lower punch guides 12 are releasably alsklippbar.
  • the leakage channels 30 come only in the washing mode and only in operation when the associated bellows seal 26 has a leak in the bellows and / or the lower mounting ring 45. Only in this case, namely enters a small or larger amount of detergent liquid in the upper region of the blind hole of the guide 12 and can run in the blind hole up to the additional sealing ring 40.
  • a manifold 51 connects to supply the discharged via the leakage channels 30 detergent liquid to a collecting container 52 shown schematically in Fig. 1.
  • the manifold 51 may be associated with a sensor 55 for detecting any liquid entry into the manifold 51, e.g. to signal to the operator via the signal from the sensor 55 that a leak must be present on at least one bellows seal 26 for the lower punches 13. In case of greater liquid entry, the washing cycle can also be automatically interrupted immediately.
  • a sensor 56 can also be assigned to the collecting container 52 in order to detect a liquid inlet into the collecting container 52 with it.
  • the collecting line 51 is preferably arranged in alignment with and below the outer side 28 of the lower punch guide ring 11, the annular channel 50 extending as far as a vertical wall section 9A of the trough 9.
  • a sealing sleeve 60 is circumferentially attached to the lower punch guide ring 11 above the circumferential groove 36, which extends down over the lower mouth point 31 of the leakage channel 30 and a sealing lip 61 which rests sealingly on the trough 9 during rotation of the rotor 10 as a dynamic seal in order to prevent liquid from entering the machine sump 7 or the motor 8 from the working space 5.
  • a concentrically encircling drip edge is provided at the transition of the peripheral wall 28 into the underside H '' of the lower die guide ring 11 34 formed, which preferably sharp-edged projecting about the bottom of a peripheral step 35 to Unterstempeltrac- ring. With the drip edge prevents liquid to the bottom II ' 1 of the lower punch guide ring 11 can move and thus may possibly enter from below into the optionally lubricated with an oil film sliding guides 12 for the lower punch.
  • the working chamber 5 is formed sealed in such a liquid-tight manner that the working space 5 can be flooded to a desired level with washing liquid which enters via the nozzles 21, 22 and possibly further inflows, while the rotor 10 is in Operating position is located in the working space 5.
  • the desired filling level during flooding of the working space 5 can be monitored with the level sensor 74 shown in FIG. 1, which is arranged here on the top wall 60 of the upper cover 4 and preferably consists of a sonar level sensor.
  • level sensor 74 can be monitored in particular and regulated by means of a control unit, not shown for the rotary tablet press 1, that the level of the washing liquid in the working space 5 reaches a maximum of the bottom or an intermediate region of the upper punch guide ring 14. If the level of the washing bath, not shown, remains lower than the back of the upper punch guide ring 14, can on more expensive seals between the Oberstkov Adjustsring 14th and the receiving space for the rollers 20 to move the upper punch 16 are omitted.
  • the rotary tablet press 1 During flooding of the working space 5 in a washing cycle or cleaning cycle, which is carried out eg after completion of a production process, before changing elements of the rotor 10 or before converting the rotor 10 to another product to be pressed, in the rotary tablet press 1 according to the invention ultrasonically applied to the wash bath (not shown) resulting from the flooding to enhance the cleaning effect of the wash bath by the use of ultrasound.
  • ultrasound transducers 70, 71 are arranged in the rotary tablet press 1, both inside and outside the working chamber.
  • the arranged outside the working chamber 5 ultrasonic transducer 71 is fixed here on the underside of the bottom tray 9 and consists for example of a suitable vibrating element with, for example, sandwiched piezoelectric vibrating systems and a metallic vibrating plate to convert the ultrasonic frequency signal generated by the ultrasonic generator 73 in longitudinal waves, the be discharged into the wash. With the longitudinal waves are then by the cavitation effects, as known in ultrasonic cleaning, tablet dust, incrustations or other deposits on the surfaces of the submerged in the washing bath parts of the rotor 10 and the rotary tablet press 1 solved.
  • an ultrasound transducer 70 designed as a rod oscillator or sonotrode is additionally arranged within the working space 5 and is excited by the same ultrasound generator 73.
  • a plurality of oscillating elements 71 or rod vibrators 70 could also be assigned to the working space 5 or oscillating elements 71 arranged exclusively outside the working space 5 or sonotrodes 70 arranged inside the working space 5 could be used. be provided.
  • Either individual ones of the ultrasonic transducers 70, 71 could be designed for different frequencies, or the ultrasonic transducers 70, 71 are designed for multi-frequency operation to coarsely, finely and finely clean the parts of the rotor by changing the ultrasonic frequency from a low frequency to a higher frequency 10 to reach.
  • a multi-frequency ultrasonic transducer could be designed for the three frequencies 40 kHz, 80 kHz and 120 kHz to achieve a good cleaning result.
  • the working space 5 of the rotary tablet press 1 is liquid-tightly closed even if flooded or partially flooded working space 5 and at the same time remains accessible for retooling of the rotor 10, usually all four attached to the housing 2 side walls are designed as an apparent side wall 83, as with the one side wall 83 shown schematically.
  • the side wall 83 is tightened against a seal, which is arranged here substantially adapted to the edges of the side wall 83 and an outer, circumferential sealing element 78 and an inner circumferential sealing element 79, between which a chamber 82 is formed.
  • the side wall 83 is closed during the closing operation first by means of a manually operable handle 77, which is preferably designed such that upon rotation of the handle 77, a sliding movement of the window wall 83 on the housing 2 and the seals 78, 79 is effected.
  • This first closed position of the side wall 83 can be monitored in particular with a sensor 76, which preferably opposite the lower edge of the side wall 83 and outputs a corresponding signal to a control unit (not shown) when reaching the manually effected closed position.
  • Starting a wash cycle may be coupled by the control unit to whether the sensor 76 has signaled the closed position of the side wall 83 and whether motor locking mechanisms 75 have also been actuated which additionally apply the side wall 83 also near the upper edge of the side wall 83 against the seals 78, 79 tighten.
  • the start of the washing cycle can also be coupled thereto by first supplying compressed air via a compressed air line 80 and a compressed air valve 81 to the chamber 82 between the seals 78, 79.
  • the chamber 82 can a sensor that detects a pressure drop in the chamber 82 to automatically detect leaks of the seals 78, 79.
  • the washing liquid can be heated to a temperature advantageous for ultrasonic cleaning by means of a heating device, not shown, or if necessary also cooled during the application of the ultrasound to a certain temperature with a cooling device.
  • a heating device not shown
  • the rotor 10 is rotated during the cleaning cycle in order to improve both the dissolution of the dirt particles by means of ultrasound and the removal of the dissolved particles.
  • water or another washing liquid mixed with cleaning agent additives suitable for ultrasonic cleaning instead of pure water, it would also be possible to use water or another washing liquid mixed with cleaning agent additives suitable for ultrasonic cleaning.
  • ultrasonic frequencies ultrasonic frequencies
  • ultrasonic transducers ultrasonic vibration systems
  • ultrasonic generators can be used, and the output power of the ultrasonic generators and their frequency can preferably be determined digitally via the control unit.
  • Impellers could also be arranged in the working space to set the washing bath in motion during cleaning. The level of the washing bath in the working space can be varied during the washing cycle with ultrasound in order to achieve optimum reflection on the parts to be cleaned of the rotor or the working space.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cleaning By Liquid Or Steam (AREA)

Abstract

L'invention concerne une presse à comprimés rotative pourvue d'un rotor (10) comprenant une bague de guidage de poinçon supérieur (14) pour le poinçon supérieur (16), une bague de guidage de poinçon inférieur (11) pourvue de glissières pour le poinçon inférieur (13) et un disque à matrices (17) disposé entre les bagues de guidage des poinçons. Cette presse à comprimés présente un dispositif de lavage permettant de laver le rotor (10) au moyen d'un liquide de lavage. Une chambre de travail (5) étanche aux liquides est par ailleurs formée dans le bâti, cette chambre pouvant être remplie de liquide de lavage pour que le rotor puisse être plongé dans un bain de lavage. Selon l'invention, pour réduire au minimum les risques pour la santé encourus par le personnel, au moins un transducteur d'ultrasons (70, 71) destiné à soumettre le bain de lavage à des ultrasons est associé à la chambre de travail (5).
PCT/EP2008/000900 2007-03-01 2008-02-06 Presse à comprimés rotative pourvue d'un dispositif de lavage WO2008104267A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200720003176 DE202007003176U1 (de) 2007-03-01 2007-03-01 Rotationstablettenpresse mit Wascheinrichtung
DE202007003176.9 2007-03-01

Publications (1)

Publication Number Publication Date
WO2008104267A1 true WO2008104267A1 (fr) 2008-09-04

Family

ID=38608477

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2008/000900 WO2008104267A1 (fr) 2007-03-01 2008-02-06 Presse à comprimés rotative pourvue d'un dispositif de lavage

Country Status (2)

Country Link
DE (1) DE202007003176U1 (fr)
WO (1) WO2008104267A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110978605A (zh) * 2019-12-25 2020-04-10 北京翰林航宇科技发展股份公司 旋转式压片机及压片机的清洁方法
DE102023126993A1 (de) * 2023-10-04 2025-04-10 Syntegon Technology Gmbh Rundlaufpresse und Verfahren zum Reinigen einer Rundlaufpresse

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008046670B4 (de) * 2008-04-16 2012-05-24 Bwi Plc Tablettenpressmaschine
DE102014117012B4 (de) * 2014-11-20 2017-07-13 Fette Compacting Gmbh Verfahren zum Fördern von Presslingen in einer Rundläuferpresse und Rundläuferpresse zum Erzeugen von Presslingen
DE102020125653B3 (de) * 2020-10-01 2021-11-04 Fette Compacting Gmbh Sensoranordnung für eine Produktionseinrichtung sowie Verfahren zum Transferieren eines Sensors in ein Gehäuse einer Produktionseinrichtung und aus einem Gehäuse einer Produktionseinrichtung

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6297799A (ja) * 1985-10-24 1987-05-07 Hata Tekkosho:Kk 回転式粉末圧縮成型機の洗浄方法
JPS63299892A (ja) * 1987-05-30 1988-12-07 Hata Tekkosho:Kk 回転式粉末圧縮成形機の洗浄方法
IT1242289B (it) * 1990-06-07 1994-03-04 Ima Spa Procedimento per il lavaggio delle zone operative di una macchina comprimitrice per la realizzazione di compresse, e perfezionamenti apportati a detta macchina per l'attuazione di tale procedimento.
EP0612570A2 (fr) * 1993-02-22 1994-08-31 Yoshihide Shibano Procédé pour faire osciller un vibrateur à ultrason pour le nettoyage à ultrason
EP0637507A1 (fr) * 1993-07-31 1995-02-08 KORSCH PRESSEN GmbH Procédé et dispositif pour le nettoyage de machines de fabrication de tablettes, de dragées et de granulés, en particulier de machines à table tournante
JPH08238596A (ja) * 1995-03-02 1996-09-17 Giken:Kk 圧縮錠剤の製造に用いる杵、臼の全自動洗浄方法および装置
US5865199A (en) * 1997-10-31 1999-02-02 Pedziwiatr; Michael P. Ultrasonic cleaning apparatus
WO2002064356A1 (fr) * 2001-02-15 2002-08-22 I.M.A. Industria Macchine Automatiche S.P.A. Presse a comprimes
WO2002074528A1 (fr) * 2001-03-16 2002-09-26 I.M.A Industria Macchine Automatiche S.P.A. Presse pour comprimes
WO2003020499A1 (fr) * 2001-09-05 2003-03-13 Courtoy Nv Machine a comprimer rotative et son procede de nettoyage
WO2003084738A1 (fr) * 2002-04-09 2003-10-16 Kilian Gmbh & Co. Kg Presse rotative a comprimes comportant un joint de poinçon et joint de poinçon
DE20304981U1 (de) * 2003-03-26 2004-08-05 Kilian Gmbh & Co. Kg Tablettenpresse und Ölfang- und/oder Dichtelement zur Verwendung an Tablettenpressen

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6297799A (ja) * 1985-10-24 1987-05-07 Hata Tekkosho:Kk 回転式粉末圧縮成型機の洗浄方法
JPS63299892A (ja) * 1987-05-30 1988-12-07 Hata Tekkosho:Kk 回転式粉末圧縮成形機の洗浄方法
IT1242289B (it) * 1990-06-07 1994-03-04 Ima Spa Procedimento per il lavaggio delle zone operative di una macchina comprimitrice per la realizzazione di compresse, e perfezionamenti apportati a detta macchina per l'attuazione di tale procedimento.
EP0612570A2 (fr) * 1993-02-22 1994-08-31 Yoshihide Shibano Procédé pour faire osciller un vibrateur à ultrason pour le nettoyage à ultrason
EP0637507A1 (fr) * 1993-07-31 1995-02-08 KORSCH PRESSEN GmbH Procédé et dispositif pour le nettoyage de machines de fabrication de tablettes, de dragées et de granulés, en particulier de machines à table tournante
JPH08238596A (ja) * 1995-03-02 1996-09-17 Giken:Kk 圧縮錠剤の製造に用いる杵、臼の全自動洗浄方法および装置
US5865199A (en) * 1997-10-31 1999-02-02 Pedziwiatr; Michael P. Ultrasonic cleaning apparatus
WO2002064356A1 (fr) * 2001-02-15 2002-08-22 I.M.A. Industria Macchine Automatiche S.P.A. Presse a comprimes
WO2002074528A1 (fr) * 2001-03-16 2002-09-26 I.M.A Industria Macchine Automatiche S.P.A. Presse pour comprimes
WO2003020499A1 (fr) * 2001-09-05 2003-03-13 Courtoy Nv Machine a comprimer rotative et son procede de nettoyage
WO2003084738A1 (fr) * 2002-04-09 2003-10-16 Kilian Gmbh & Co. Kg Presse rotative a comprimes comportant un joint de poinçon et joint de poinçon
DE20304981U1 (de) * 2003-03-26 2004-08-05 Kilian Gmbh & Co. Kg Tablettenpresse und Ölfang- und/oder Dichtelement zur Verwendung an Tablettenpressen

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Week 199437, Derwent World Patents Index; AN 1994-296540 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110978605A (zh) * 2019-12-25 2020-04-10 北京翰林航宇科技发展股份公司 旋转式压片机及压片机的清洁方法
DE102023126993A1 (de) * 2023-10-04 2025-04-10 Syntegon Technology Gmbh Rundlaufpresse und Verfahren zum Reinigen einer Rundlaufpresse
DE102023126993B4 (de) * 2023-10-04 2025-09-04 Syntegon Technology Gmbh Rundlaufpresse und Verfahren zum Reinigen einer Rundlaufpresse

Also Published As

Publication number Publication date
DE202007003176U1 (de) 2007-10-18

Similar Documents

Publication Publication Date Title
WO2008104267A1 (fr) Presse à comprimés rotative pourvue d'un dispositif de lavage
EP3083088B1 (fr) Cartouche de nettoyage pour dispositif de nettoyage dans un four
EP0204127B1 (fr) Mélangeur résistant à la pression
EP3892923A1 (fr) Appareil de cuisson doté d'un espace de cuisson et son procédé de nettoyage
DE3425552C2 (fr)
DE4237770C1 (de) Pulsierer für Fluide
DE2721770C2 (de) Verdrängerpumpe
DE2319283A1 (de) Stanzpresse mit verbessertem system zur handhabung von ausgestanzten teilen
DE581432C (de) Unter Druck und ununterbrochen arbeitendes Drehfilter
DE4313800B4 (de) Vakuumdruckgussverfahren
EP2015927B1 (fr) Presse à comprimés rotative avec dispositif de lavage et rotor associé
DE2215790C2 (de) Kontinuierlich arbeitende Rührwerks-Kugelmtihle
DE9016112U1 (de) Gerät zum Reinigen der Gasdüse eines Schweißbrenners
CN113975996A (zh) 一种桶外搅拌混合器及其清洗装置和系统
DE102011115564A1 (de) Zerkleinerungsvorrichtung für Speise- und Lebensmittelabfälle, insbesondere im gastronomischen Bereich, sowie Verfahren zum Betreiben einer derartigen Zerkleinerungsvorrichtung
EP3656530B1 (fr) Dispositif de raccordement destiné à raccorder une machine à vis sans fin à un engrenage et procédé de nettoyage d'un tel dispositif de raccordement
EP3885656A2 (fr) Disque de distribution pour un liquide de nettoyage, système de distribution, appareil de cuisson doté d'une chambre de cuisson et son procédé de nettoyage
DE19601184A1 (de) Reinigungsverfahren für Maschinen zur Herstellung von Teigwaren
DE202007009022U1 (de) Rotationstablettenpresse mit Wascheinrichtung und Rotor hierfür
DE945670C (de) Maschine zum Reinigen von Buero- u. dgl. Maschinen
EP3504008A1 (fr) Procédé servant à éliminer des particules présentes dans un liquide de travail d'une machine
DE2427053A1 (de) Vorrichtung zum filtern von viskosem material
JP3065096U (ja) 骨片除去装置
EP2701846A1 (fr) Mécanisme de levage pour un broyeur à couteau frappeur
DE4014347C1 (en) Appts. for heating-rotating and/or oscillating work member - comprises heat carrier, pipe, heat exchanger, vessel and ring-shaped hollow chamber with plastic extruder for high temps.

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 08707568

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 08707568

Country of ref document: EP

Kind code of ref document: A1