EP1153735B1 - Stempel für Rundlaufpresse - Google Patents
Stempel für Rundlaufpresse Download PDFInfo
- Publication number
- EP1153735B1 EP1153735B1 EP00126657A EP00126657A EP1153735B1 EP 1153735 B1 EP1153735 B1 EP 1153735B1 EP 00126657 A EP00126657 A EP 00126657A EP 00126657 A EP00126657 A EP 00126657A EP 1153735 B1 EP1153735 B1 EP 1153735B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- punch
- bore
- insert
- holder
- projection
- 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
Links
Images
Classifications
-
- 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 stamp for a rotary press after the Preamble of claim 1.
- Rotary presses are known to upper and lower punches, which in corresponding Piston guides of the rotor are guided axially and with die holes interact with the die plate.
- the actuation of the stamp takes place with the help of stationary cams.
- the pressing process, with the punches is performed, is effected by pressure rollers, against which the punches start and press the stamp down or up for the purpose of compression of the filled in the die holes powdery material.
- stamp insert forms the actual Preßtechnikmaschine and thus determines the contour of the compact.
- the invention has for its object to provide a stamp for rotary presses create, in which for a relative rotation opposite to the pressed tablet a separate drive can be dispensed with.
- the approach of the punch insert between axially spaced Plugs guided helically in the bore and from a spring to Pretensioned front face of the punch holder At the beginning of a pressing process the punch insert moves into the punch holder up to a fixed one Attack. During this axial movement simultaneously finds a limited rotational movement the stamp insert instead. After pressing, the punch is raised, and the spring returns the punch insert to the home position. The punch insert performs a rotation and thus causes a release of the tablet.
- One according to one embodiment of the invention is that rotatably connected to the free end of the neck a threaded spindle and in the bore a spindle nut is arranged rotationally fixed, with which the threaded spindle interacts.
- the spindle nut can according to another embodiment be fixed by means of radial pins in the punch holder of the invention.
- the Approach of the punch insert points to a further embodiment of the invention at least one radial pin, which engages in a groove of the punch holder, wherein the groove is dimensioned so that it the axial movement of the punch insert allows.
- the pin can according to another embodiment of the invention, the end a radial pin, through which the spindle in a bore of the neck is fixed.
- the angle of rotation is z. B. 10 to 30 °, preferably about 20 °.
- the single FIGURE shows a section through a stamp according to the invention.
- the punch has a punch shaft or punch holder 10 with a head 12, in a known manner with pressure rollers of the not shown Concentric press cooperates.
- the punch holder 10 is not in holes shown punch guide axially guided and by a wedge 14 at a rotation prevented.
- a punch insert 16 At the lower end of the punch holder 10 is a punch insert 16 to detect. It consists of an approximately cylindrical tool section 18, a pin-shaped cylindrical projection 20 and a threaded spindle 22.
- An the head 12 opposite end of the punch holder is a stepped Bore shaped. In the first bore section with the largest diameter is the approach 20 slidably guided.
- a spindle nut 24 is arranged, with the help of two opposite radial pins 26, 28 in the bore portion axially and set against rotation.
- the threaded spindle 22 interacts with the nut 24 together.
- a helical compression spring 30 is arranged, which rests on the bottom of the bore and on the spindle 22 acts and biases this away from the head 12.
- the protruding sections are arranged in radial slots 34 and 36 of the punch holder 10, wherein the width the slots 34, 36 is significantly larger than the diameter of the pin 32nd
- a sleeve 38 is attached, which is the Slits 34, 36 covers and partially over the tool portion 16th extends.
- the latter has received in an annular groove an O-ring 40, the sealing cooperates with the inside of the sleeve 36. This prevents that Penetrate impurities.
- the dimensions described are such that the pin 32 is not at the top the slots 34, 36 strikes; before it comes to the plant of the surfaces 42 and 44th together.
- the pin 32 therefore only has to absorb the force of the spring 30 or the impact generated when the pin on the underside of the slots 34, 36 arrives at the plant.
Description
Claims (8)
- Stempel für eine Rundlaufpresse mit einem in einer Führungsbohrung axial gelagerten Stempelhalter und einem Stempeleinsatz, der über einen zapfenförmigen Ansatz in einer endseitigen Bohrung des Stempelhalters sitzt und über lösbare Befestigungsmittel befestigbar ist, dadurch gekennzeichnet, daß der Ansatz (20) zwischen axial beabstandeten Anschlägen schraubenlinienförmig in der Bohrung geführt und von einer Feder (30) zur zugeordneten Stirnfläche (44) des Stempelhalters (10) hin vorgespannt ist.
- Stempel nach Anspruch 1, dadurch gekennzeichnet, daß mit dem freien Ende des Ansatzes (20) eine Gewindespindel (22) drehfest verbunden ist und in der Bohrung eine Spindelmutter (24) drehfest angeordnet ist, mit der die Gewindespindel (22) zusammenwirkt.
- Stempel nach Anspruch 2, dadurch gekennzeichnet, daß die Spindelmutter (24) über mindestens einen radialen Stift (26, 28) festgelegt ist.
- Stempel nach Anspruch 2 oder 3, dadurch gekennzeichnet, daß am Ansatz (20) mindestens ein radialer Zapfen (32) vorgesehen ist, der in einer Nut (34, 36) des Stempelhalters (10) eingreift, wobei die Nut so bemessen ist, daß sie die Axialbewegung des Stempeleinsatzes (16) zuläßt.
- Stempel nach Anspruch 4, dadurch gekennzeichnet, daß der Zapfen das Ende eines radialen Stiftes (36) ist, durch den die Spindel (22) in einer Bohrung des Ansatzes (20) festgelegt ist.
- Stempel nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß die Axialbewegung des Stempeleinsatzes (16) durch seine Anlage an der Stirnfläche (44) des Stempelhalters (10) begrenzt ist.
- Stempel nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß der Drehwinkel des Stempeleinsatzes (16) etwa 10 bis 30° beträgt, vorzugsweise etwa 20°.
- Stempel nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß eine Schraubenfeder (30) in der Bohrung angeordnet ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10024340A DE10024340C2 (de) | 2000-05-11 | 2000-05-11 | Stempel für Rundlaufpresse |
DE10024340 | 2000-05-11 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1153735A2 EP1153735A2 (de) | 2001-11-14 |
EP1153735A3 EP1153735A3 (de) | 2002-08-07 |
EP1153735B1 true EP1153735B1 (de) | 2005-06-22 |
Family
ID=7642503
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00126657A Expired - Lifetime EP1153735B1 (de) | 2000-05-11 | 2000-12-05 | Stempel für Rundlaufpresse |
Country Status (4)
Country | Link |
---|---|
US (1) | US6749416B2 (de) |
EP (1) | EP1153735B1 (de) |
JP (1) | JP2001321995A (de) |
DE (2) | DE10024340C2 (de) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004051006B4 (de) * | 2004-10-20 | 2009-07-02 | Fette Gmbh | Rundlaufpresse |
DE102005021923C5 (de) | 2005-05-12 | 2014-03-13 | Fette Compacting Gmbh | Verfahren zum Betrieb einer Rundläuferpresse und Rundläuferpresse |
CN1951843B (zh) * | 2005-10-21 | 2011-09-28 | 鸿富锦精密工业(深圳)有限公司 | 光学元件成型装置 |
CN100553924C (zh) * | 2006-01-18 | 2009-10-28 | 鸿富锦精密工业(深圳)有限公司 | 光学元件成型模具 |
CN101015947B (zh) * | 2006-02-10 | 2011-03-30 | 鸿富锦精密工业(深圳)有限公司 | 模具结构 |
CA2809945C (en) | 2010-08-30 | 2018-10-16 | Oscomp Systems Inc. | Compressor with liquid injection cooling |
US9267504B2 (en) | 2010-08-30 | 2016-02-23 | Hicor Technologies, Inc. | Compressor with liquid injection cooling |
GB2486259B (en) * | 2010-12-09 | 2013-01-16 | Holland Ltd I | Tablet pressing |
US20130025559A1 (en) * | 2011-06-10 | 2013-01-31 | Honda Motor Co., Ltd. | High pressure die casting flash containment system |
JP5220943B1 (ja) * | 2012-08-13 | 2013-06-26 | 伊藤工具株式会社 | 圧縮成形用金型の杵 |
JP6265403B1 (ja) * | 2017-10-17 | 2018-01-24 | 伊藤工具株式会社 | 圧縮成形用金型の杵 |
CN108000929A (zh) * | 2017-12-11 | 2018-05-08 | 上海天和制药机械有限公司 | 一种旋转式压片机的转台装置 |
DE102019104676A1 (de) * | 2019-02-25 | 2020-08-27 | GTE General Tool Engineering GmbH | Tablettierstempel, Tablettieranordnung bestehend aus Oberstempel und Unterstempel und Matrize sowie ein Pressverfahren für die Tablettieranordnung |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE347438C (de) * | 1922-01-20 | Fritz Kilian | Unterstempel fuer umlaufende Formpressen | |
US3593366A (en) * | 1968-12-11 | 1971-07-20 | Wolverine Pentronix | Multiple punch tool set for powder compacting press |
US3677672A (en) * | 1970-03-12 | 1972-07-18 | Chrysler Corp | Apparatus for the manufacture of powder metal helical gears |
US4487566A (en) * | 1983-07-11 | 1984-12-11 | Barna Alex J | Punching tool having interchangeable punches |
DE8816064U1 (de) * | 1988-06-14 | 1989-02-23 | Henkel Kgaa, 4000 Duesseldorf, De | |
DE9003241U1 (de) * | 1990-03-17 | 1990-06-13 | Korsch Maschinenfabrik, 1000 Berlin, De | |
DE4018401A1 (de) * | 1990-06-08 | 1991-12-12 | Fette Wilhelm Gmbh | Rundlauf-tablettiermaschine |
US5314323A (en) * | 1992-09-09 | 1994-05-24 | Precision Plastic Tool Co., Inc. | Stripper plate locking device |
ES2115359T3 (es) * | 1994-01-15 | 1998-06-16 | Korsch Pressen Gmbh | Dispositivo para la fijacion de matrices facon |
DE9409108U1 (de) * | 1994-06-03 | 1994-08-04 | Fette Wilhelm Gmbh | Preßstempel für eine Tablettiermaschine |
AT406240B (de) * | 1996-06-20 | 2000-03-27 | Miba Sintermetall Ag | Formwerkzeug zum pressen eines formkörpers aus einem sinterpulver |
ES2178078T3 (es) * | 1997-07-23 | 2002-12-16 | Kilian Gmbh & Co Kg | Prensa de comprimidos con marcha concentrica. |
US5902512A (en) * | 1998-01-28 | 1999-05-11 | Streit; Kenneth F. | Adjustable date stamp mold insert |
US6308929B1 (en) * | 1998-10-22 | 2001-10-30 | Klaus A. Wieder | Mold insert |
DE19854075A1 (de) * | 1998-11-24 | 2000-05-25 | Henkel Kgaa | Verfahren zur Serienfertigung von Formkörpern mit geringer Härteschwankung |
DE19920380C2 (de) * | 1999-05-04 | 2001-07-12 | Fette Wilhelm Gmbh | Rundläufer-Tablettenpresse |
DE19926934C2 (de) * | 1999-06-14 | 2002-08-01 | Fette Wilhelm Gmbh | Werkzeuganordnung zur Herstellung von ringförmigen Preßlingen mit Hilfe einer Rundläuferpresse |
-
2000
- 2000-05-11 DE DE10024340A patent/DE10024340C2/de not_active Expired - Fee Related
- 2000-12-05 EP EP00126657A patent/EP1153735B1/de not_active Expired - Lifetime
- 2000-12-05 DE DE50010604T patent/DE50010604D1/de not_active Expired - Lifetime
-
2001
- 2001-01-17 US US09/764,179 patent/US6749416B2/en not_active Expired - Lifetime
- 2001-01-23 JP JP2001014227A patent/JP2001321995A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
EP1153735A3 (de) | 2002-08-07 |
US20010041198A1 (en) | 2001-11-15 |
EP1153735A2 (de) | 2001-11-14 |
JP2001321995A (ja) | 2001-11-20 |
US6749416B2 (en) | 2004-06-15 |
DE50010604D1 (de) | 2005-07-28 |
DE10024340A1 (de) | 2001-11-29 |
DE10024340C2 (de) | 2002-09-12 |
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