EP2082867B1 - Presse pour comprimés - Google Patents

Presse pour comprimés Download PDF

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Publication number
EP2082867B1
EP2082867B1 EP08019180.2A EP08019180A EP2082867B1 EP 2082867 B1 EP2082867 B1 EP 2082867B1 EP 08019180 A EP08019180 A EP 08019180A EP 2082867 B1 EP2082867 B1 EP 2082867B1
Authority
EP
European Patent Office
Prior art keywords
rotor
tablet press
drive
press according
punch
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.)
Not-in-force
Application number
EP08019180.2A
Other languages
German (de)
English (en)
Other versions
EP2082867A3 (fr
EP2082867A2 (fr
Inventor
Daniel Malick
Wolfgang Soltau
Jörg Gaedecke
Matthias Rau
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.)
Fette GmbH
Original Assignee
Fette GmbH
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 Fette GmbH filed Critical Fette GmbH
Publication of EP2082867A2 publication Critical patent/EP2082867A2/fr
Publication of EP2082867A3 publication Critical patent/EP2082867A3/fr
Application granted granted Critical
Publication of EP2082867B1 publication Critical patent/EP2082867B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/02—Dies; Inserts therefor; Mounting thereof; Moulds
    • B30B15/026—Mounting of dies, platens or press rams

Definitions

  • the invention relates to a tablet press according to the preamble of claim 1.
  • the invention relates in particular to a tablet press whose rotor has a matrix disc consisting of segments.
  • a typical tablet press is a so-called rotary press. Whenever tablet presses are mentioned above and below, naturally also those rotary presses are meant with which any desired other compacts can be produced, for example in the food, detergent or other sector.
  • the typical structure of a rotary press is the bearing of a rotor in a press frame, wherein the rotor has bores for the guidance of upper and lower punches between which a die plate is arranged with die holes with which the stamp interact during the rotation of the rotor.
  • the press dies are actuated in printing stations by pressure rollers and guided outside of these via control cams.
  • the rotor is driven by a suitable drive motor.
  • a suitable drive motor In this context, it has also become known to integrate an electric motor in a rotor, wherein the rotor of the electric motor is on the outside and is in engagement with the inner wall of the rotor.
  • the rotor is mostly molded in one piece.
  • the die plate may be formed integrally with the rotor.
  • the invention has the object of providing a tablet press with segmented die plate in such a way that predetermined clamping forces can be applied to the die segments in a simple manner.
  • At least one drive device for the clamping elements is arranged in the frame of the tablet press with a height adjustable drive element, which is selectively engageable with the lower end of the clamping element in engagement.
  • the tension member is passed through a passage in the rotor and in abutment with the underside of the associated Matrices segment engageable.
  • a drive device which can operate electrically, hydraulically or pneumatically, is designed to apply an axial compressive force either directly or indirectly to the clamping element in order to exert a predetermined clamping force on the associated matrix segment with the clamping element.
  • the drive device is arranged stationary in the frame, whereby the rotor must be adjusted by appropriate rotation so that the drive element and clamping element are aligned with each other when the clamping element is to be actuated.
  • the clamping of the die elements can be automated, and it is not necessary to apply a predetermined force to the clamping element via an operator, for example with the aid of a torque wrench.
  • the operator When manually clamping the segments, the operator must apply the necessary clamping force or release force himself. Therefore, it may happen that the necessary tension is not guaranteed.
  • built-in tableting tools manual clamping and releasing is difficult or even impossible.
  • An embodiment of the invention provides that the rotor is surrounded by a stationary housing, which cooperates sealingly with the rotor and forms a process space and the lower ends of the clamping elements are outside the process space.
  • the process space is designed to substantially surround the rotor but leave the top and bottom portions of the rotor free.
  • the process space is therefore relatively small, but thereby also allows a cleaning of all the process space facing parts without the removal of stamps or the like is required. It is therefore also advantageous according to a further embodiment of the invention, when the clamping elements are sealingly passed through the passage into the process space.
  • the drive device however, is outside the process space. When retrofitting therefore must not be worked in confined space. Also, the process space facing portions of the clamping elements can be cleaned by cleaning within the process room with and therefore need not be removed.
  • FIG. 1 Various embodiments are conceivable for bringing the clamping elements axially into contact with the segments of the die plate.
  • An embodiment of the invention provides that the lower end of the clamping element is associated with a spindle drive and a rotary drive device is provided, the rotary spindle can be coupled to the spindle drive.
  • the invention provides that the drive device is connected to a lifting device in the frame.
  • a rotary drive the rotary spindle is axially adjustable to be brought into engagement with the spindle drive of the clamping element.
  • a die plate consists of several segments, for example of five segments.
  • One embodiment provides that two or more clamping elements are provided per segment. As a result, a uniform clamping of the segments can be achieved, in particular, if, according to a further embodiment of the invention, parallel drive devices are operated simultaneously.
  • the number of drive devices equal to the number of clamping elements.
  • the effort for this is relatively high. It can therefore be used according to an embodiment of the invention, a smaller number of drive devices when a control device for the rotary motor of the rotor is designed so that the rotor can be positioned in predetermined rotational positions to align the drive element with the clamping element.
  • FIGS. 1 and 2 show a segment of a rotor 10 for a tablet press, as is well known in the art.
  • the rotor has an upper punch guide 12 and a lower punch guide 14, which guide bores 16 and 18, record the press dies, not shown. Just as an example, for recording the press die on the DE 10 2004 040 163 pointed.
  • the rotor 10 is rotated by a drive motor, not shown in rotation.
  • the engine may be integrated into the rotor 10 according to the last-mentioned document.
  • the rotor 10 is rotatably mounted on a column of a frame, not shown, for the tablet press. This too is in DE 10 2004 040 163 described.
  • the rotor 10 receives a die plate, which is composed of individual segments 20.
  • Fig. 6 shows the top view of a die plate with five arranged in a circle segments having holes 22.
  • a tensioning die or tensioning element 24 is shown, which extends through a passage in the lower punch guide 14, in abutment against the underside of the segment 20, in order to press the segment against a radial abutment surface 26.
  • upper punch and lower punch holder 12, 14 are integrally formed.
  • Fig. 3 shows the side view of a rotor 10a, which is substantially the rotor 10 after the FIGS. 1 and 2 like. It is indicated a single die segment 20, which is pressed against an abutment surface 26, by means of a clamping element 24a. As indicated by arrow 28, the clamping element 24a can be changed in the axial direction or in its length.
  • a drive device 44 is provided, which is connected to the frame of the tablet press, not shown.
  • Dashed lines is at 32 in Fig. 3 indicated as a housing is extending around the rotor 10a around. It acts sealingly with the rotor 10a together and forms a baling chamber 34.
  • a seal is shown, which seals the clamping element 24a, so that at this point the pressing space 34 is sealed from the environment.
  • Fig. 4 resembles this Fig. 3 , is therefore provided with the same reference numeral. He is opposite Fig. 3 shown rotated by 90 °. It can be seen that the segment 20 is pressed against the abutment surface 26 of the rotor 10a by means of two circumferentially spaced clamping elements 24a, 24b. Thus, two drives 42, 44 are provided, which simultaneously fix the segment 20 in the rotor 10a via the clamping elements 24a, 24b.
  • Fig. 5 is in turn the same rotor as in the FIGS. 3 and 4 shown and therefore has the same reference number.
  • the drive devices 42, 44 are shown via lifting devices 30a, 30b arranged on a platform 40 of the otherwise not shown frame of the tablet press.
  • the drive devices 42, 44 rotationally actuate drive or coupling elements 46.
  • the drive elements 46 can not only be rotated, but also be moved axially with the drive devices 42, 44 as indicated by arrow 28. This is done by the lifting devices 30a, 30b, which move the drive devices 42, 44 in height.
  • the drive and coupling elements 46 have at the upper end a web, the with a recess 48 of clamping elements 50, 52 is engageable to enable a spindle or the like in rotation.
  • each segment 20 includes two clamping elements, for example the clamping elements 50, 52, wherein only two drive devices 42, 44 are provided for all clamping elements 50, 52.
  • the rotor 10a is to be rotated in each case by a predetermined angle in order to align the clamping elements 50, 52 with the drive or coupling elements 46.
  • a segment 20 presses against the abutment surface 26.
  • a plunger 60 is within a bushing 62 which has a flange 64 at the lower end.
  • Fig. 2 It can be seen how the flange 64 is received in a recess of the lower punch guide 14 and secured therein. The downward movement of the punch 60 is limited by an internal shoulder in the sleeve 62.
  • a threaded spindle 66 is screwed centrally into an internally threaded bore 68 of the punch 60.
  • the threaded spindle 66 is supported via a radial flange 70 on the inner shoulder.
  • the threaded spindle 66 has a hexagonal head 72, which is located within a lower recess 74 of the sleeve 62.
  • a head 78 of a screwed radially into the punch 60 screw 80 In a lateral radially continuous slot 76 of the bush 62 is a head 78 of a screwed radially into the punch 60 screw 80.
  • the head 78 can move axially parallel in the slot 76 by a certain amount, but prevents rotational movement of the punch 60th
  • a holder 60a for a lifting cylinder 62a is arranged on the press frame 40.
  • the lift cylinder actuates a crossbar 64a which is bolted to arms 68a, 70a and which are connected at the other end to the housing of drive motors 72a, 74a.
  • the drive motors 72a, 74a have a shaft 76a or 78a, which run in a guide sleeve 80a, 82a and at the end of a coupling element 84, 86 have.
  • the Drive motors 72a, 74a are, for example, pneumatic motors with the aid of which the coupling elements 84, 86 can be set in rotation.
  • the motors 72a, 74a are provided with connections 88, 90 for compressed air.
  • Fig. 10 is also the lower part of the rotor 10 partially indicated with the clamping elements 24.
  • the coupling elements 84, 86 are aligned with the clamping elements 24 shown in the middle. If the entire arrangement is now moved upwards with the aid of the lifting cylinder 82, the coupling elements 84, 86 move, as has already been described above, through a passage in the lower punch guide in order to engage in a Fig. 10 not shown spindle of the clamping elements in rotary connection to occur.
  • the spindle drive can be carried out, for example, in the manner as shown by the FIGS. 8 and 9 is shown.
  • two clamping elements 24 can be actuated simultaneously for one segment 20 each. If the clamping elements are to be actuated for a further die segment, the rotor 10 is further rotated by the corresponding angle, until in turn the coupling elements 84, 86 are aligned with the associated clamping elements 24.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Press Drives And Press Lines (AREA)
  • Medical Preparation Storing Or Oral Administration Devices (AREA)
  • Medicinal Preparation (AREA)

Claims (10)

  1. Presse pour comprimés, avec un rotor (10, 10a) qui est supporté en rotation dans un bâti de la presse pour comprimés et qui présente un logement de poinçon supérieur pour les poinçons supérieurs et un logement de poinçon inférieur pour les poinçons inférieurs de la presse pour comprimés ainsi qu'un disque à matrice avec une série d'alésages de matrice (22) qui sont dirigés vers les poinçons supérieurs et inférieurs, le disque à matrice se composant d'au moins deux segments annulaires (20) qui peuvent être mis en place sur le rotor (10, 10a) au moyen d'un dispositif de fixation, des éléments de serrage (50, 52 ; 60, 62) étant disposés dans des traversées du rotor (10, 10a) parallèles à l'axe qui sont espacées dans l'intervalle périphérique et agissent d'en bas sur les segments annulaires (20) et opèrent un serrage contre une surface de butée du rotor (10, 10a), caractérisée en ce que, dans le bâti (40) de la presse pour comprimés, il est disposé au moins un dispositif d'entraînement (42, 44) des éléments de serrage (50, 52 ; 60, 62) fonctionnant électriquement, pneumatiquement ou hydrauliquement, avec un élément d'accouplement (46, 72) réglable en hauteur qui peut au choix être mis en prise avec l'extrémité inférieure des éléments de serrage (50, 52 ; 60, 62).
  2. Presse pour comprimés selon la revendication 1, caractérisée en ce que le rotor (10, 10a) est entouré d'un carter (32) stationnaire qui coopère de façon étanche avec le rotor (10, 10a) et forme un espace de process (34) et en ce que les extrémités inférieures des éléments de serrage (50, 52 ; 60, 62) sont situées à l'extérieur de l'espace de process (34).
  3. Presse pour comprimés selon la revendication 2, caractérisée en ce que les éléments de serrage (50, 52 ; 60, 62) sont guidés de façon étanche dans les traversées du rotor (10, 10a).
  4. Presse pour comprimés selon l'une des revendications 1 à 3, caractérisée en ce qu'un mécanisme à broche est affecté à l'extrémité inférieure de l'élément de serrage et en ce qu'il est prévu un entraînement rotatif dont la broche rotative peut être couplée au mécanisme à broche.
  5. Presse pour comprimés selon l'une des revendications 1 à 4, caractérisée en ce que le dispositif d'entraînement est raccordé à un dispositif de levage (30a, 30b) dans le carter.
  6. Presse pour comprimés selon l'une des revendications 1 à 5, caractérisée en ce qu'il est prévu deux éléments de serrage (60, 62 ou respectivement 50, 52) par segment (20 ou respectivement 24).
  7. Presse pour comprimés selon l'une des revendications 1 à 6, caractérisée en ce qu'au moins deux dispositifs d'entraînement (40, 42) sont disposés de façon parallèle.
  8. Presse pour comprimés selon l'une des revendications 1 à 7, caractérisée en ce qu'un moteur d'entraînement destiné au rotor (10, 10a) présente un dispositif de commande qui est conçu de telle sorte que le rotor peut être positionné dans des positions de rotation prédéfinies par rapport au dispositif d'entraînement (30a, 30b).
  9. Presse pour comprimés selon l'une des revendications 4 à 8, caractérisée en ce que, dans un alésage du rotor (10), un coussinet (62) est reçu de façon solidaire en rotation et guide un poinçon (60) parallèlement à l'axe dans le rotor (10), et en ce qu'une broche filetée (66) est vissée dans un alésage fileté, ouvert vers le bas, du poinçon (60) et est supportée axialement sur le coussinet (62) et en ce que l'extrémité inférieure de la broche filetée (66) présente une surface de mise en prise (72) pour la mise en prise avec la broche filetée (66).
  10. Presse pour comprimés selon la revendication 9, caractérisée en ce que, dans le coussinet (62), il est formé une fente (76) allongée parallèle à l'axe dans laquelle est reçue une tête (78) d'une vis (80) qui est vissée à travers la fente (76) radialement dans le poinçon (60).
EP08019180.2A 2008-01-25 2008-11-03 Presse pour comprimés Not-in-force EP2082867B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102008006045A DE102008006045B4 (de) 2008-01-25 2008-01-25 Tablettenpresse

Publications (3)

Publication Number Publication Date
EP2082867A2 EP2082867A2 (fr) 2009-07-29
EP2082867A3 EP2082867A3 (fr) 2011-04-20
EP2082867B1 true EP2082867B1 (fr) 2016-01-13

Family

ID=40568407

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08019180.2A Not-in-force EP2082867B1 (fr) 2008-01-25 2008-11-03 Presse pour comprimés

Country Status (3)

Country Link
US (1) US7641466B2 (fr)
EP (1) EP2082867B1 (fr)
DE (1) DE102008006045B4 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011101288B4 (de) * 2011-05-10 2013-11-14 Fette Compacting Gmbh Verfahren zum Betrieb einer Anlage zur Herstellung von Tabletten sowie entsprechende Anlage
EP2996869B1 (fr) 2013-05-16 2019-07-17 Korsch AG Système et procédés de changement de segments de rotor segmentés verticalement pour une presse rotative
DE102013114693A1 (de) * 2013-12-20 2015-06-25 Fette Engineering GmbH Stopfstempelstation und Verfahren zum Füllen von Kapseln in einer Stopfstempelstation
DE102014113211B4 (de) * 2014-05-07 2020-01-23 Fette Compacting Gmbh Rundläuferpresse
JP5866405B2 (ja) * 2014-05-14 2016-02-17 株式会社畑鉄工所 粉末圧縮成型機
GB2621378A (en) * 2022-08-10 2024-02-14 I Holland Ltd A die table segment

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2914201C2 (de) * 1979-04-07 1982-12-02 Wilhelm Fette Gmbh, 2053 Schwarzenbek Tablettiermaschine
DE9003241U1 (de) * 1990-03-17 1990-06-13 Korsch Maschinenfabrik, 1000 Berlin Rundlaufpresse
JPH0756155Y2 (ja) * 1992-12-04 1995-12-25 株式会社菊水製作所 回転式錠剤機
JP3847412B2 (ja) * 1997-05-02 2006-11-22 株式会社村田製作所 ロータリ式粉体圧縮成形装置
ITBO20010141A1 (it) * 2001-03-16 2002-09-16 Ima Spa Macchina comprimitrice per la produzione di compresse
US6830442B2 (en) * 2001-08-09 2004-12-14 William Alvin Cecil Rotary tablet press
DE10159114B4 (de) * 2001-12-01 2004-02-19 Wilhelm Fette Gmbh Rotor für eine Tablettenpresse
DE102004040163C5 (de) * 2004-08-19 2009-06-18 Fette Gmbh Rundläufertablettenpresse
DE202005001556U1 (de) * 2005-01-31 2006-03-16 Kilian Gmbh & Co. Kg Matritzenscheibe für Rundlauf-Tablettepresse und Rundlauf-Tablettenpresse

Also Published As

Publication number Publication date
DE102008006045A1 (de) 2009-07-30
EP2082867A3 (fr) 2011-04-20
US20090191297A1 (en) 2009-07-30
US7641466B2 (en) 2010-01-05
DE102008006045B4 (de) 2010-06-24
EP2082867A2 (fr) 2009-07-29

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