EP2036708B1 - Rotor pour presse rotative pour comprimés - Google Patents

Rotor pour presse rotative pour comprimés Download PDF

Info

Publication number
EP2036708B1
EP2036708B1 EP08015747.2A EP08015747A EP2036708B1 EP 2036708 B1 EP2036708 B1 EP 2036708B1 EP 08015747 A EP08015747 A EP 08015747A EP 2036708 B1 EP2036708 B1 EP 2036708B1
Authority
EP
European Patent Office
Prior art keywords
punch
rotor
guide
punches
press
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
EP08015747.2A
Other languages
German (de)
English (en)
Other versions
EP2036708A2 (fr
EP2036708A3 (fr
Inventor
Friedrich Meissner
Wolfgang Soltau
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 EP2036708A2 publication Critical patent/EP2036708A2/fr
Publication of EP2036708A3 publication Critical patent/EP2036708A3/fr
Application granted granted Critical
Publication of EP2036708B1 publication Critical patent/EP2036708B1/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
    • B30B15/04—Frames; Guides
    • B30B15/041—Guides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/06—Platens or press rams
    • B30B15/065—Press rams

Definitions

  • the invention relates to a rotor for a rotary tablet press according to the preamble of patent claim 1.
  • the typical rotor for a rotary press has a die plate and a lower and an upper punch guide for lower and upper punches, which cooperate with holes in the die plate.
  • the rotor is driven by a suitable drive motor about a vertical axis, and the powdery material filled into the die bores by a filling device is compressed by the press tires.
  • the pressing is done in at least one printing station, which has an upper and a lower pressure roller, which cooperate with the heads of the ram.
  • the ram are guided by suitable punch curves, including ejection of the compacts by the lower punch with the aid of appropriate cams.
  • Such rotors are out US 5,004,413 .
  • This device comprises upper and lower plungers, which can be selectively rotated in different directions, wherein the twist angle and the timing of the beginning and end of the rotation can be selected and monitored.
  • the invention has for its object to reduce the unfavorable interaction between the pressure roller and the punch head and to increase the same pressure holding time space for the number of pressing stations on the pitch circle, without increasing the equipment cost of a press rotor.
  • the punches are secured against rotation, ie they are guided exclusively axially in the guide bores.
  • an axial guidance is known per se.
  • the punch heads have flats on opposite sides, which are directed towards the adjacent punch heads.
  • the rotational position of the stamp which is determined by the exclusive axial guidance, thus allows the alignment of the flats on the punch heads to the adjacent punch heads out.
  • the advantage is achieved that the stamp can be closer together on a pitch circle and thus have a smaller distance from each other. It is therefore possible to arrange more pairs of punches on a pitch circle diameter. This is advantageous in terms of production output, since a larger number of compacts can be produced with the same rotor at the same speed than conventional rotors.
  • the punch shafts have a keyway and the guide holes contain a feather key or vice versa.
  • the shanks of the ram have a non-circular profile in cross section and the cross section of the guide holes is complementary.
  • a rotor 10 of which in Fig. 1 only a section is shown, has an upper punch guide 12 and a lower punch guide 14 and a die plate 16 between the upper and lower punch guide 12, 14.
  • all parts are a one-piece unit. It goes without saying that it can also be multi-part.
  • the die plate may consist of individual segments.
  • the upper punch guide 12 has receiving bores 18, and the lower punch guide 14 has receiving bores 20.
  • the punch guides 12, 14 lead in pairs upper punch 22 and lower punch 24, which cooperate with die holes 26 of the die plate 16 to compress powdered material in the die holes 26.
  • FIG. 3 Upper and lower punches 22, 24 and guide bushings 28, 30 are shown.
  • the pressing dies 22, 24 have a head 32, a shank 34 and a tool section 36. Only the tool portion 36 cooperates with the die bore 26 (hereinafter, only the upper punch 22 is treated, the lower punch 24 in the same way).
  • the head 32 is substantially standardized in its top. He works in the Figures 1 and 2 Not shown pressure rollers together, which press the upper punch 22 into the die bore 26 against the press material.
  • the shaft 34 is of non-circular cross-section.
  • FIG. 4 Cross-sectional shapes are shown by way of example. They show a triangular, a square and a three-section circular cross-section, the transitions are rounded.
  • the guide bushings 28, 30, which may consist of ceramic material and are glued into the receiving bores 18 and 20 respectively, have a cross-section of the shafts 34 complementary cross-section. The described cross sections therefore determine the rotational position of the punches 22, 24 in the punch guide 12 and 14, respectively.
  • Each punch 22, 24 or each guide bush 28 and 30 is associated with an upper sealing ring 38 and a lower sealing ring 40.
  • Fig. 6 At 60, the circumference of a pressure roller is indicated, under which the punch heads 32 are moved along, so that the punches 22 are pressed down into the die holes 26. As is particularly clear from this, the transition of the pressure roller circumference from one punch top to the next is almost uniform, so that only small impacts are generated, which lead to vibrations of the rotor.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Press Drives And Press Lines (AREA)
  • Powder Metallurgy (AREA)
  • Manufacture Of Motors, Generators (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Encapsulation Of And Coatings For Semiconductor Or Solid State Devices (AREA)

Claims (2)

  1. Rotor pour presse rotative pour comprimés, qui présente un guide de poinçons supérieur et inférieur pour un poinçon supérieur et un poinçon inférieur qui coopèrent avec des alésages d'un disque à matrice disposé entre le guide de poinçons supérieur et inférieur, les poinçons étant mobiles axialement dans des alésages de guidage des guides de poinçons et présentant des têtes avec lesquelles coopèrent des rouleaux presseurs de la presse pour comprimés, les poinçons de pressage (22, 24) étant guidés axialement dans les alésages de guidage en étant empêchés de tourner et étant disposés sur un cercle primitif (58), caractérisé en ce que les têtes de poinçons (32) présentent, sur des côtés opposés, des méplats (56) qui sont dirigés vers les têtes de poinçons (32) voisines et s'étendent approximativement perpendiculairement au cercle primitif (58).
  2. Rotor selon la revendication 1, caractérisé en ce que les sections transversales des tiges des poinçons de pressage présentent un profil ovalisé et en ce que la section transversale des alésages de guidage est complémentaire.
EP08015747.2A 2007-09-13 2008-09-06 Rotor pour presse rotative pour comprimés Not-in-force EP2036708B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102007043582A DE102007043582B3 (de) 2007-09-13 2007-09-13 Rotor für eine Rundlauf-Tablettenpresse

Publications (3)

Publication Number Publication Date
EP2036708A2 EP2036708A2 (fr) 2009-03-18
EP2036708A3 EP2036708A3 (fr) 2011-10-05
EP2036708B1 true EP2036708B1 (fr) 2013-07-31

Family

ID=39877456

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08015747.2A Not-in-force EP2036708B1 (fr) 2007-09-13 2008-09-06 Rotor pour presse rotative pour comprimés

Country Status (3)

Country Link
US (1) US7824170B2 (fr)
EP (1) EP2036708B1 (fr)
DE (1) DE102007043582B3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107650419A (zh) * 2016-07-26 2018-02-02 菲特压片机械有限公司 用于旋转式压机的冲模

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2466963B (en) 2009-01-16 2011-01-19 Holland Ltd I A punch
DE102009031367B3 (de) 2009-07-02 2010-09-02 Fette Gmbh Pressstempel für eine Rundläuferpresse
KR101552018B1 (ko) * 2012-11-07 2015-09-09 오씨아이 주식회사 진공단열재 심재의 성형 장치 및 이를 통해 제조된 진공단열재

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2068619A (en) * 1935-09-13 1937-01-19 Stokes Machine Co Tablet-making machine
GB1137032A (en) * 1965-07-28 1968-12-18 United States Borax Chem Process and apparatus for forming tablets
US4298563A (en) * 1978-10-19 1981-11-03 Ptx-Pentronix, Inc. Apparatus and method for compacting prismatic or pyramidal articles from powder material
DE8815075U1 (de) * 1988-12-03 1990-04-05 Manesty Machines Ltd., Liverpool, Lancashire Tablettiermaschine
JPH066147B2 (ja) * 1991-08-08 1994-01-26 株式会社菊水製作所 回転式粉末成形機の杵
DE10159114B4 (de) * 2001-12-01 2004-02-19 Wilhelm Fette Gmbh Rotor für eine Tablettenpresse
JP3756863B2 (ja) * 2002-09-27 2006-03-15 株式会社菊水製作所 回転式粉末圧縮成形機
DE102004040163C5 (de) * 2004-08-19 2009-06-18 Fette Gmbh Rundläufertablettenpresse

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107650419A (zh) * 2016-07-26 2018-02-02 菲特压片机械有限公司 用于旋转式压机的冲模

Also Published As

Publication number Publication date
EP2036708A2 (fr) 2009-03-18
US7824170B2 (en) 2010-11-02
US20090252823A1 (en) 2009-10-08
DE102007043582B3 (de) 2008-11-27
EP2036708A3 (fr) 2011-10-05

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