EP1843891B1 - Plaque a matrices destinee a une presse a comprimes rotative et presse a comprimes rotative - Google Patents

Plaque a matrices destinee a une presse a comprimes rotative et presse a comprimes rotative Download PDF

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Publication number
EP1843891B1
EP1843891B1 EP06706168A EP06706168A EP1843891B1 EP 1843891 B1 EP1843891 B1 EP 1843891B1 EP 06706168 A EP06706168 A EP 06706168A EP 06706168 A EP06706168 A EP 06706168A EP 1843891 B1 EP1843891 B1 EP 1843891B1
Authority
EP
European Patent Office
Prior art keywords
die table
die
cutouts
dies
die plate
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.)
Expired - Lifetime
Application number
EP06706168A
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German (de)
English (en)
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EP1843891A1 (fr
Inventor
Hans Krämer
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.)
IMA Kilian GmbH and Co KG
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IMA Kilian GmbH and Co KG
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Application filed by IMA Kilian GmbH and Co KG filed Critical IMA Kilian GmbH and Co KG
Publication of EP1843891A1 publication Critical patent/EP1843891A1/fr
Application granted granted Critical
Publication of EP1843891B1 publication Critical patent/EP1843891B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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 further relates to a die plate for a rotary tablet press according to the preamble of claim 1.
  • the invention also relates to a corresponding rotary tablet press according to the preamble of claim 18.
  • Rotary tablet presses include rotors which may also be designed as change rotors and comprise a guide for the upper punches and a guide for the lower punches in addition to a die plate.
  • the upper and lower punches arranged in the punch guides are aligned axially parallel to dies or die bores which are formed in the die plate and in which the powder supplied to the rotary tablet press is shaped into a compact by means of the punches.
  • the ejection of the compact is usually carried out by means of the lower punch up to the top of the die plate.
  • the cross-section and the structure of a die together with the stroke of the die determines the contour of the compact to be produced. Depending on the contour of the compact and the composition of the powder to be pressed, the wear on the dies varies in height.
  • a die plate typically includes a plurality of through holes, each individual through hole itself forming a die or a receiving bore forms for a sleeve-shaped, interchangeable die (die sleeve).
  • the number of stamps used therefore corresponds to the number of matrices or die sleeves to be disassembled, serviced and / or mounted during maintenance or installation work, the replaceable die sleeves usually being secured in the die receiving bores in the die plate by means of locking means screwed into radial bores.
  • the maintenance effort for die plates with interchangeable die sleeves is correspondingly high.
  • a rotor for a rotary tablet press is known in which the die plate consists of several disc segments, wherein the composite disc segments form the rotatably mounted on the rotor die plate.
  • the die plate consists of several disc segments, wherein the composite disc segments form the rotatably mounted on the rotor die plate.
  • a corresponding number of matrices designed as die holes are formed, so that no longer need to be replaced when worn single matrices, but the entire die plate is removed in segments and replaced by another segmental die plate.
  • the assembly effort compared with the conventional die plates, which provide a separate bore for each individual die sleeve is lower.
  • the production costs for a corresponding die plate are much higher.
  • Each die bush has an upper and a lower, circular flange plate in order to be able to partially support each individual die bushing on a subzone of these flanges at receiving convexities on the circumference of the die plate.
  • the complete support of two such special matrices by means of a holding element, which is set by means of screws which pass through the gap between two separate matrices on the circumference of the die plate.
  • Air gaps are created around each individual die in the assembled state, and the die plate does not have a closed surface even when the dies are locked.
  • the filling of the individual die bores can only take place from the inside via feed bores which are formed in the die plate and open into the receiving indentations for each of the dies.
  • each segment is supported on the rotor body by means of bolts and suitable locating pins.
  • Each segment carries a plurality of circular bushes consisting of matrices, which have at least at the upper end a flange plate, so that each die bushing can be supported on the segment.
  • a die plate for a rotary tablet press in which circular die bushes are arranged in circular recesses in the die plate.
  • the pressing heads and the pressing dies are accommodated in different guide rings.
  • Each die bushing has a slot as a press recess and the relative position of the slot to the circumference can be adjusted by a centering device.
  • WO 03/022559 A1 is for a tableting machine having lower punch with UnterstempelMften known to provide the lower punch shaft with an eccentrically arranged guide bore into which a guide pin is immersed, which is arranged fixed in position in a cooperating with the lower punch die, so that the up and down moving lower punch on Guide pin can lead. Due to this construction, the dies can only be exchanged one by one and it is necessary first to release the connection to the guide pin before a die can be exchanged.
  • the object of the invention is to provide a die plate that can be converted to new matrices for short make-ready times on matrices with other contours for the compacts or for maintenance and cleaning purposes.
  • the die plate comprises two to nine recesses, in particular three to five recesses for inserts.
  • Each insert may in this case comprise in particular five to fifteen matrices or form the carrier for five to fifteen matrices.
  • inserts are designed to be complementary in order to be used in the recesses can.
  • the recesses in the die plate are provided (only) adjacent to the upper side of the die plate with a mating surface for fitting insertion of the insert pieces.
  • the mating surface may in this case preferably be formed only from the upper peripheral edge of the recesses.
  • the mating surfaces ensure the registration and axis parallelism of the central axes of the dies to the axes of the guides in the punch guide rings and at the same time prevent the formation of molding dust or powder in the seams between the peripheral edge of the inserts and the boundaries of the recesses.
  • the manufacturing costs for the die plate with recesses for precisely fitting insertion of inserts can be further reduced.
  • the recesses can increase to the bottom of the die plate, thus to the lower punch guide side, and / or extend below the mating surface.
  • each insert which are insertable into the recesses, consist of circular-arc-shaped and / or kidney-shaped ring segments.
  • each insert can be provided directly with a plurality of through holes forming the dies.
  • the matrices are thus formed directly in the inserts in this embodiment.
  • a suitable for matrices wear-resistant material such as hardened steel, carbide or ceramic can be used, at best at transition bars between two recesses, the material of the die plate stops.
  • the recesses in the die plate can be filled by means of inserts, even the highest quality material can be used for the inserts without cost disadvantages, while the die plate itself consists of less expensive material.
  • the die plate may be provided on the upper side with a concentric circumferential groove, wherein the groove base consists essentially of the recesses and between them arranged radial webs.
  • inserts can be used, which adjoin each other directly at the top of the die plate, so that by means of the inserts a concentric strip is formed within the top of the die plate.
  • the inserts may have a bow-inner side surface and an arc-shaped side surface, wherein at least on the arc-inside side surface of a mounting web is formed.
  • the mounting bar is arranged centrally between an upper side and a lower side of the insert pieces. This has the advantage that the inserts after a rotation of 180 °, i. a reversal of top and bottom against each other, can be re-mounted on the die plate, whereby the total service life of the dies in the inserts is almost doubled again with extremely short makeready times.
  • fasteners or centering which can particularly advantageously pass through the mounting bar and can be fixed to the die plate or festschraubbar. It is particularly advantageous if the inserts are attached to the underside of the die plate, as at the bottom of the die plate no scraper or the like. pass by and also during the pressing process, the larger forces of the lower stamps, with which the compacts are ejected upwards at the end of the pressing process, are applied.
  • the die plate may have radial bores or transverse bores which open into the recesses.
  • This offers the particular advantage that for locking the inserts a few locking means such as locking pins or locking screws from the peripheral edge of the die plates in the radial bores or cross holes in the die plate are screwed or inserted.
  • 2 to 4 locking means For locking an insert, if necessary, 2 to 4 locking means.
  • the insert pieces may also be fastened relative to the die plate by means of locking elements which are mounted on the rotor.
  • the locking elements can in particular be enclosed in recesses on the lower punch guide.
  • the rotor 1 comprises a lower punch guide ring 1 with numerous concentric about the rotational axis of the rotor 1 arranged punch guide holes 3 for lower punch 4, another, upper punch guide ring 5 with numerous guide holes 6 for upper punch 7 and a die plate 10, which is mounted in a conventional manner, for example, at the transition between the lower punch guide ring 2 and the upper punch guide ring 5 replaceable on the rotor 1.
  • a lower punch guide ring 1 with numerous concentric about the rotational axis of the rotor 1 arranged punch guide holes 3 for lower punch 4, another, upper punch guide ring 5 with numerous guide holes 6 for upper punch 7 and a die plate 10, which is mounted in a conventional manner, for example, at the transition between the lower punch guide ring 2 and the upper punch guide ring 5 replaceable on the rotor 1.
  • each insert 20 extends in a circular arc over here approximately 90 ° and in each case several, in the illustrated embodiment nine, dies 11 comprises.
  • Each inserts 20 with the plurality of dies 11 is hereby inserted into an associated recess 12 within the die plate 10, wherein the four recesses 12 here are continuous between the top 13 of the die plate 10 facing the upper punch guide ring 5 and the underside 14 facing the lower punch guide ring 2 the die plate 10 extend.
  • the inserts 20 with the plurality of dies 11 are inserted into the recesses 12 such that, in particular the Fig.
  • the top 21 of the inserts 20 is flush and plane-parallel with the top 13 of the die plate 10 while the inserts 20 at the same time protrude far beyond the bottom 14 of the die plate 10 and abut the central integrally formed mounting bar 25 on the bottom 14 of the die plate 10 over a large area , so that the forces that are applied via the lower punch 3 when pressing out of a compact from the die 11 on the inserts 20, intercepted via the mounting bar 25 and are derived in the die plate 10 and its attachment to the rotor 1.
  • the recesses 20 extend in each case as circular arcuate groove strips with all around closed edge 15 on the upper side 13 of the die plate 10 and the complementary formed inserts 20 also consist of inserted from below into the recesses 12 arcuate, ridge-shaped or strip-shaped ring segments with arcuate side surfaces 23rd , 24 and rounded ends 28.
  • Fig. 1 shows here that the subsequent to the top 13 of the die plate 10 portion 12A of the recess 12 has a smaller free cross-section as the lower, extending to the bottom 14 section 12 B, since the recesses 12 extend downwardly over a step.
  • the upper portion 12A is worked as a mating surface, in which the insert 20 with the edge surface of each of the bottom 22 and top 21 immediately adjacent peripheral edge 29 dips in register.
  • each insert 20 is provided with a plurality of dies 11, has the advantage that by replacing an insert 20 immediately more dies are replaced, for example, during maintenance in the embodiment shown a total of four inserts 20 in to replace the four recesses 12 by other inserts 20.
  • the design of the insert pieces 20 with a symmetrical structure relative to the mounting leg 25 offers the further advantage that the insert pieces 20 can be rotated by 180 ° and then inserted into the recesses 12 again.
  • the locking elements 30 may be in a suitable manner against the rotor, in particular in recesses 33 in the lower punch guide ring 2, in order to support the support of the inserts 20.
  • the die plate 10 with in Fig. 3 shown radial bores 38 which open into the recesses 12, as well as provided with radial bores 39 which border in an intermediate web 16 between two recesses 12.
  • locking pins can be screwed, wherein the screwed into the radial bores 38 locking pins in corresponding cross holes in the inserts 20, while the screwed into the radial bores 39 locking pins, for example, in Positionierkerben at the peripheral edge of two adjacent insert pieces 20 to their ensure flush position to each other and the Matrizenassociatednoberseite 13.
  • An embodiment with four insert pieces is particularly suitable for a total of thirty-six dies or die bores. With fewer dies, only three inserts could be used, with a significantly higher number of dies also five or six inserts and a corresponding number of recesses use.
  • the contiguous edges of the inserts could also be interlocked, for which purpose then the die plate is provided with a concentric circumferential groove so that the surfaces of the inserts continue to be flush with the top of the die plate.
  • the inserts could or the like with individual, interchangeable inserts such as die sleeves. be provided.
  • the mounting bar could (additionally) also be formed on the outer side surface in order to introduce the forces applied by the lower punches on both sides of the recesses in the die plate.
  • magnets in particular, super magnets such as neodymium magnets or the like.
  • To be mounted as an assembly aid to hold the inserts in the mounting position within the recesses, while the fasteners are mounted and tightened for the inserts.
  • the change of inserts inserts maintenance personnel then has both hands for mounting and tightening the fasteners free, since the inserts are kept within the recesses in a simple manner.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Medical Preparation Storing Or Oral Administration Devices (AREA)
  • Mounting, Exchange, And Manufacturing Of Dies (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Powder Metallurgy (AREA)
  • Press Drives And Press Lines (AREA)
  • Forging (AREA)

Claims (19)

  1. Plaque à matrices destinée à une presse à comprimés rotative qui comprend un rotor pouvant tourner qui est formé par la plaque à matrices (10), un guide de poinçons pour des poinçons supérieurs et un guide de poinçons pour des poinçons inférieurs, comportant plusieurs matrices (11) remplaçables disposées de manière concentrique autour de l'axe de rotation du rotor et orientées vers les poinçons supérieurs et inférieurs, la plaque à matrices (10) comprenant au moins deux évidements (12), caractérisée en ce que chaque évidement (12) s'étend en forme d'arc de cercle et comprend un bord (15) fermé sur toute la circonférence, et dans chacun de ces évidements (12) est insérée de manière échangeable une pièce d'insertion (20) comportant plusieurs matrices et formant le corps porteur pour cette pluralité de matrices (11).
  2. Plaque à matrices selon la revendication 1, caractérisée en ce que la plaque à matrices (10) comprend de deux à neuf évidements (12), de préférence de trois à cinq évidements pour des pièces d'insertion.
  3. Plaque à matrices selon la revendication 1 ou 2, caractérisée en ce que chaque pièce d'insertion (20) comporte de cinq à quinze matrices (11).
  4. Plaque à matrices selon l'une quelconque des revendications 1 à 3, caractérisée en ce que les évidements (12) dans la plaque à matrices (10) sont pourvus, de manière adjacente au côté supérieur (13) de la plaque à matrices (10), d'une surface d'ajustement (12A) pour l'insertion avec ajustement serré des pièces d'insertion (20).
  5. Plaque à matrices selon la revendication 4, caractérisée en ce que la surface d'ajustement (12A) est formée par le bord périphérique supérieur de l'évidement (12).
  6. Plaque à matrices selon l'une quelconque des revendications 1 à 5, caractérisée en ce que les évidements (12) s'agrandissent en direction du côté du guide des poinçons inférieurs et/ou s'élargissent en dessous de la surface d'ajustement (12A).
  7. Plaque à matrices selon l'une quelconque des revendications 1 à 6, caractérisée en ce que les pièces d'insertion (20) sont constituées de segments annulaires ou de bandes de segment annulaire réniformes et/ou en forme d'arc de cercle.
  8. Plaque à matrices selon l'une quelconque des revendications 1 à 7, caractérisée en ce que chaque pièce d'insertion (20) est pourvue directement de plusieurs alésages traversants qui forment les matrices (11).
  9. Plaque à matrices selon l'une quelconque des revendications 1 à 8, caractérisée en ce que la plaque à matrices est pourvue d'une rainure périphérique concentrique sur le côté supérieur, le fond de la rainure étant constitué essentiellement des évidements et de nervures radiales disposées entre ceux-ci.
  10. Plaque à matrices selon l'une quelconque des revendications 1 à 9, caractérisée en ce que les pièces d'insertion (20) comprennent une surface latérale (24) à l'intérieur de la courbe et une surface latérale (23) à l'extérieur de la courbe, une nervure de montage (25) étant réalisée sur la surface latérale (24) à l'intérieur de la courbe.
  11. Plaque à matrices selon la revendication 10, caractérisée en ce que la nervure de montage (25) est disposée de manière centrale entre un côté supérieur (21) et un côté inférieur (22) des pièces d'insertion (20).
  12. Plaque à matrices selon la revendication 10 ou 11, caractérisée en ce que des moyens de fixation/des moyens de centrage (31) pour fixer/centrer les pièces d'insertion traversent la nervure de montage (25) et peuvent être fixés à la plaque à matrices (10).
  13. Plaque à matrices selon l'une quelconque des revendications 1 à 12, caractérisée en ce que les pièces d'insertion (20) sont fixées au côté inférieur (14) de la plaque à matrices (10).
  14. Plaque à matrices selon l'une quelconque des revendications 1 à 13, caractérisée en ce que la plaque à matrices comprend des alésages radiaux (38) ou des alésages transversaux qui débouchent dans les évidements (12).
  15. Plaque à matrices selon la revendication 14, caractérisée en ce que, pour bloquer les pièces d'insertion (20), des moyens de blocage tels que des goupilles de blocage ou des vis de blocage peuvent être vissés ou enfichés à partir du bord périphérique de la plaque à matrices (10) dans les alésages radiaux (38) ou les alésages transversaux dans la plaque à matrices.
  16. Plaque à matrices selon l'une quelconque des revendications 1 à 15, caractérisée en ce que les pièces d'insertion (20) sont fixées à la plaque à matrices (10) au moyen d'éléments de verrouillage (30) qui sont en butée contre le rotor (1).
  17. Plaque à matrices selon la revendication 16, caractérisée en ce que les éléments de verrouillage (30) sont encastrés dans des cavités (33) sur le guide des poinçons inférieurs (2).
  18. Presse à comprimés rotative comprenant un rotor pouvant tourner (1) formé par une plaque à matrices (10), une bague de guide de poinçons (5) pour des poinçons supérieurs et une bague de guide de poinçons (2) pour des poinçons inférieurs, la plaque à matrices (10) comportant plusieurs matrices (11) remplaçables disposées de manière concentrique autour de l'axe de rotation du rotor et orientées vers les poinçons supérieurs et inférieurs, et la plaque à matrices (10) comprenant au moins deux évidements (12), caractérisée en ce que chaque évidement (12) s'étend en forme d'arc de cercle et comprend un bord (15) fermé sur toute la circonférence, et dans chacun de ces évidements (12) est insérée de manière échangeable une pièce d'insertion (20) comportant plusieurs matrices et formant le corps porteur pour cette pluralité de matrices (11).
  19. Presse à comprimés rotative selon la revendication 18, caractérisée en ce que la plaque à matrices est réalisée selon l'une quelconque des revendications 2 à 17.
EP06706168A 2005-01-31 2006-01-05 Plaque a matrices destinee a une presse a comprimes rotative et presse a comprimes rotative Expired - Lifetime EP1843891B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202005001556U DE202005001556U1 (de) 2005-01-31 2005-01-31 Matritzenscheibe für Rundlauf-Tablettepresse und Rundlauf-Tablettenpresse
PCT/EP2006/000056 WO2006081908A1 (fr) 2005-01-31 2006-01-05 Plaque a matrices destinee a une presse a comprimes rotative et presse a comprimes rotative

Publications (2)

Publication Number Publication Date
EP1843891A1 EP1843891A1 (fr) 2007-10-17
EP1843891B1 true EP1843891B1 (fr) 2012-10-17

Family

ID=36051455

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06706168A Expired - Lifetime EP1843891B1 (fr) 2005-01-31 2006-01-05 Plaque a matrices destinee a une presse a comprimes rotative et presse a comprimes rotative

Country Status (6)

Country Link
US (1) US7553147B2 (fr)
EP (1) EP1843891B1 (fr)
JP (1) JP5092163B2 (fr)
CN (1) CN101111364B (fr)
DE (1) DE202005001556U1 (fr)
WO (1) WO2006081908A1 (fr)

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EP1952696A1 (fr) * 2007-02-01 2008-08-06 Nestec S.A. Procédé et appareil pour fabriquer des produits alimentaires avec remplissage au centre
DE202007002707U1 (de) * 2007-02-21 2008-07-03 Ima Kilian Gmbh & Co.Kg Füllschuh für Rotationstablettenpressen
DE102008006045B4 (de) * 2008-01-25 2010-06-24 Fette Gmbh Tablettenpresse
DE102008001372B4 (de) * 2008-04-23 2014-01-09 Bosch Packaging Technology Ltd. Materialzuführung für eine Tablettenpressmaschine sowie Tablettenpressmaschine
GB2462454B (en) * 2008-08-06 2012-06-06 Patheon Uk Ltd Rapid low-cost manufacture of tablets using disposable equipment
FR2938465B1 (fr) * 2008-11-14 2010-12-24 Epmo Systeme de montage de poincons coulissants dans une presse a comprimes
JP5143818B2 (ja) * 2009-12-24 2013-02-13 日東電工株式会社 圧縮成形品の成形装置
JP2013022644A (ja) * 2011-07-26 2013-02-04 Kikusui Seisakusho Ltd 粉体圧縮成形機
DE102012002361B4 (de) * 2012-02-08 2014-04-03 Fette Compacting Gmbh Matrizenscheibe für Matrizenbuchsen einer Rundläufertablettenpresse sowie Rotor mit einer solchen Matrizenscheibe
CN102909877B (zh) * 2012-11-07 2015-04-15 南通锻压设备股份有限公司 一种多功能液压机
CN103538276A (zh) * 2013-11-13 2014-01-29 中盐国本盐业有限公司 一种旋转式压片机
JP5866405B2 (ja) * 2014-05-14 2016-02-17 株式会社畑鉄工所 粉末圧縮成型機
KR20170134409A (ko) 2015-02-27 2017-12-06 싱귤레이트 테라퓨틱스 엘엘씨 트리펄스 방출 자극제 제형
WO2018185777A1 (fr) * 2017-04-05 2018-10-11 Lokhande Shrikant Ensemble et procédé de fabrication automatisée d'anneaux
DE102018122394B4 (de) * 2018-09-13 2020-09-10 Fette Compacting Gmbh Rotor für eine Rundläuferpresse
CN110604724A (zh) * 2019-10-22 2019-12-24 恒诚制药集团淮南有限公司 一种肠溶美沙拉秦缓释片剂及其制备方法
WO2022188965A1 (fr) 2021-03-10 2022-09-15 Gea Process Engineering Nv Dispositif de compression
CN113103490B (zh) * 2021-04-12 2024-03-19 佛山市定中机械有限公司 一种塑料压注机
KR20240028443A (ko) * 2021-07-02 2024-03-05 인더스트리얼 파마슈티컬 리소시즈, 인코퍼레이티드 다중 행 터렛을 구비한 회전식 정제 프레스
GB2621378B (en) * 2022-08-10 2025-07-02 I Holland Ltd A die table segment

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Also Published As

Publication number Publication date
US7553147B2 (en) 2009-06-30
JP5092163B2 (ja) 2012-12-05
WO2006081908A1 (fr) 2006-08-10
US20080145468A1 (en) 2008-06-19
EP1843891A1 (fr) 2007-10-17
DE202005001556U1 (de) 2006-03-16
JP2008528289A (ja) 2008-07-31
CN101111364B (zh) 2011-12-28
CN101111364A (zh) 2008-01-23

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