EP1165308A1 - Rundlaufpresse mit auswechselbaren einsatzstempeln - Google Patents
Rundlaufpresse mit auswechselbaren einsatzstempelnInfo
- Publication number
- EP1165308A1 EP1165308A1 EP00918807A EP00918807A EP1165308A1 EP 1165308 A1 EP1165308 A1 EP 1165308A1 EP 00918807 A EP00918807 A EP 00918807A EP 00918807 A EP00918807 A EP 00918807A EP 1165308 A1 EP1165308 A1 EP 1165308A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- insert
- stamp
- rotary press
- area
- external component
- 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.)
- Granted
Links
- 238000007789 sealing Methods 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 abstract 1
- 210000003746 feather Anatomy 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000000428 dust Substances 0.000 description 3
- 230000001133 acceleration Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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
- B30B15/0082—Dust eliminating means; Mould or press ram cleaning means
-
- 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
- B30B15/06—Platens or press rams
- B30B15/065—Press rams
Definitions
- the invention relates to a rotary press with exchangeable insert rams according to the preambles of claims 1 and 12.
- the known rotary presses for pressing tablets in particular essentially consist of a rotor with a die table, an upper part and a lower part, the upper part and the lower part leading the upper and lower punches engaging in the matrices of the die table.
- a rotary press is described in DE-GM 88 16 064, in which the upper and lower punches directly after the pass Sieren of these pressurizing pressure rollers are rotatable about their longitudinal axis.
- the upper and lower punches are rotated about their longitudinal axis either by a friction connection of the upper and lower punches with pressure rollers acting directly behind the upper and lower punches, which can be pressed against the upper and lower punches under spring force, or by the interaction of a guide shaft on the punch shaft arranged toothing with a stationary rack.
- a disadvantage of the frictional connection between the upper and lower punches and the associated guide curve sections is, however, that wear occurs on the one hand, and on the other hand no defined rotation of the upper and lower punches is carried out. Thus, with different degrees of rotation of the upper and lower punches, the pressed molded body can even be destroyed.
- a disadvantage of the toothing arranged on the punch shaft is, on the one hand, that specially designed upper and lower punches must be used and, on the other hand, that there is friction between the toothing of the upper and lower punches and the associated stationary racks occurs because the toothing of the upper and lower punches is moved together with these in the axial direction of the upper and lower punches.
- the invention is based on the object of developing a generic rotary press in which the sticking of the tablet to the upper and lower punches is reliably avoided by the generation of twisting forces on the surface of the tablet, in particular in which a plunger rotation when twisting is used - Secured stamp shafts universal, ie is guaranteed both with rotationally symmetrical and with roller-guided stamps.
- the rotary press with torsion-proof shafts and interchangeable insert punches attached to it is characterized in that the interchangeable insert die is designed to be rotatable by providing a circumferential rotation in the journal of the insert die, into which a component such as a resilient pressure piece for fixing tion engages, and that the outer surface of the interchangeable insert die has a region which cooperates with an area of an external component in a force-locking or positive manner such that the insert die experiences a rotational movement at a defined point in the pitch circle of the die circulation.
- the external component for the upper insert stamp and the lower insert stamp is mounted as a stamp turning device according to a preferred embodiment of the invention in a radially elastic manner and is designed such that the engagement on the upper and lower insert stamps can be adjusted separately and are brought to differently defined points of the pitch circle can, in that the external component can be positioned radially around the pitch circle of the stamp circulation.
- the preferred design of the engagement area of the outer surface of the insert stamp as a separate element enables longer service lives and an inexpensive replacement of wearing parts.
- the angular rotation of the stamp can also be changed, for example by changing the toothing, ie the rotation path performed by the stamp can be extended. like or shorten, but on the other hand it is also relatively easy to switch from positive to non-positive connection.
- the invention enables rotary presses to be designed with rotatable and exchangeable insert punches for rotationally symmetrical and for roller-guided punches.
- the dies are rotatably mounted, which have a toothing or a friction surface on their outer sides.
- FIG. 1 a schematic vertical section through an upper and lower insert stamp in the working position with the upper and lower insert stamp moved out of the die
- FIG. 2 the illustration according to FIG. 1 in the position with the upper and lower insert immersed in the die Operational stamp, including the ex- internal component
- 3b the top view of detail I from FIG. 2.
- Fig. 1 a part of a known concentricity is shown in a schematic representation, consisting of an arrangement of rotor upper part 11, die table 13 with die 14 and lower rotor part 12.
- the upper punch shaft 15 and the lower punch shaft 16 run in guide bushes 17, 18, which in Upper rotor part 11 or used in the lower rotor part 12 and are secured against rotation with adapters 19, 20.
- the guide bushes 17, 18 have feather key grooves 21, 22 in which feather keys 23, 24 of the upper and lower punch shafts 15, 16 are arranged.
- the stamp shafts 15, 16 are also secured against rotation with respect to the rotor 11, 12 or to the pressure roller (not shown).
- a sealing ring 25 is arranged in the upper guide bush 17 against the ingress of dirt and to avoid loss of lubricating oil.
- the lower shaft guide 18 is protected by a bellows 10.
- the insert punches which can usually be exchanged but are fixed but can be exchanged and rotated in accordance with the present invention upper insert stamp 6 and lower insert stamp 7 executed.
- This is achieved by a circumferential screwing 27, 30 in the pin 8, 9 of the upper and lower punches 6, 7.
- a component for example a resilient pressure piece 4, engages in this recess 27, 30 for fixing.
- a pin 5 engages in the recess 27, 30.
- an attached element 1 with external teeth is arranged on a stepped area of the rotatable insert stamp 6, 7.
- the key between this element 1 and the rotatable insert punches 6, 7 is ensured by a feather key 2.
- the external toothing can be applied directly to the insert stamp 6, 7.
- the separate application of the external toothing on a separate attached element 1 has the advantage that wear can be eliminated inexpensively by replacing the attached element 1. It is not necessary to replace the entire application stamp 6, 7.
- FIG. 2 shows the design of a rotary press in which a punch head 32 with guide rollers 31 is provided. This embodiment requires an anti-rotation shaft 15, 16 of the upper and lower insert punches 6, 7 corresponding to FIG. 1.
- FIG. 2 also shows an external component on the periphery of the pitch circle of the stamp circulation, which is used as the stamp turning device 33.
- the plunger rotating device 33 is placed on a dust ring 34 in the vicinity of the pressure roller (not shown) and can be moved with a slide 35 concentrically to the pitch circle, in the pressure roller region.
- the point of engagement of the toothing elements 29 (FIG. 2) of the plunger rotating device 33 with the attached element 1 with external toothing (FIG. 1) can be adjusted so that the most favorable point with a sufficiently minimized pressing force caused by the pressure rollers is just practiced, is discontinued.
- Via a threaded rod 28, which is connected to the slide 35 the engagement points of the fixed toothing elements 29 can be individually adjusted in height to the rotatable insert punch 6, 7. This is necessary in order to be able to react to changed immersion depths of the insert punches 6, 7.
- the fixed toothing elements 29 can be moved horizontally about the threaded rods 28, which act as a vertical axis, with height-adjustable bearing bushes 26.
- the horizontal movement is restricted to a range of a few millimeters by an elastic or resilient element 3.
- the external toothing of the attached element 1 and the fixed toothing elements 29 are designed to be low-mass and very elastic as resilient toothing elements corresponding to the illustration in FIG. 3.
- Fig. 3a is a schematic side view and in Fig. 3b in plan view an embodiment of the toothing element 29 and the external toothing of the attached element 1 is shown, in which the fixed toothing element 29 is comb-shaped with spring elements as prongs 37.
- a plurality of prongs 37 of the toothing element 29 ensure that a prong 37 comes into engagement with the external toothing of the attached element 1, the external toothing of the attached element 1 providing an expedient tooth shape such as sawtooth shape, trapezoidal tooth shape.
- the joint between the fixed punch shaft 15, 16 and the rotatable insert punch 6, 7 is sealed against material dust and contamination of the bearing points by a seal 36, for example a labyrinth ring.
- a friction wheel or the like acting tangentially on the insertion stamp 6, 7 for the frictional engagement is also conceivable as the stamp rotation device 33.
- An embodiment, not shown, provides that instead of the insert punches 6, 7, the dies 14 are rotatably mounted, which have a toothing or a friction surface on their outer sides. With such a solution, forces can also be generated on the surface of the tablets which prevent the tablet from sticking to the upper and / or lower punch.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
- Automatic Assembly (AREA)
Abstract
Description
Claims
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19913979 | 1999-03-18 | ||
DE19913979 | 1999-03-18 | ||
DE19963263A DE19963263C2 (de) | 1999-03-18 | 1999-12-17 | Rundlaufpresse mit auswechselbaren Einsatzstempeln |
DE19963263 | 1999-12-17 | ||
PCT/EP2000/002372 WO2000056534A1 (de) | 1999-03-18 | 2000-03-17 | Rundlaufpresse mit auswechselbaren einsatzstempeln |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1165308A1 true EP1165308A1 (de) | 2002-01-02 |
EP1165308B1 EP1165308B1 (de) | 2005-08-24 |
Family
ID=26052622
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00918807A Expired - Lifetime EP1165308B1 (de) | 1999-03-18 | 2000-03-17 | Rundlaufpresse mit auswechselbaren einsatzstempeln |
Country Status (5)
Country | Link |
---|---|
US (1) | US6926511B1 (de) |
EP (1) | EP1165308B1 (de) |
JP (1) | JP2002539951A (de) |
ES (1) | ES2248065T3 (de) |
WO (1) | WO2000056534A1 (de) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ITBO20010082A1 (it) | 2001-02-15 | 2002-08-16 | Ima Spa | Macchina comprimitrice per la produzione di compresse |
WO2008103020A1 (es) * | 2007-02-23 | 2008-08-28 | Metalsa Servicios, S. De R.L. | Prensa punzadura con porta-punzones y porta-matrices intercambiables |
DE102007043584B4 (de) * | 2007-09-13 | 2010-04-15 | Fette Gmbh | Rotor für eine Rundlauf-Tablettenpresse |
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 |
DE102011008943A1 (de) * | 2011-01-19 | 2012-07-19 | Korsch Ag | Tablettenpresse |
FR2990377B1 (fr) * | 2012-05-11 | 2015-03-13 | Eurotab | Support de poincon pour machine de compactage |
US10051944B2 (en) * | 2015-07-17 | 2018-08-21 | Leslie McClellan | Cosmetic powder repairing device |
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 |
JP7276843B2 (ja) * | 2019-09-13 | 2023-05-18 | 株式会社菊水製作所 | 回転式粉体圧縮成形機 |
Family Cites Families (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3371136A (en) * | 1968-02-27 | United States Borax Chem | Detergent tablet forming machine | |
GB155594A (en) * | 1919-06-11 | 1922-03-20 | Emmanuel Gaillard | Improvements in and relating to presses for making pastilles and other similar products |
DE1783564U (de) * | 1958-12-11 | 1959-02-19 | Korsch Spezialfab Emil | Stempelfuehrung an rundlauf - tabletten - komprimiermaschinen. |
US3118183A (en) * | 1961-05-05 | 1964-01-21 | Procter & Gamble | Rotary tablet press having means to rotate the plungers |
DE6927938U (de) * | 1969-07-14 | 1969-12-18 | Peter Hofer | Tablettenstempel. |
JPS5234786B1 (de) * | 1971-06-07 | 1977-09-05 | ||
JPS5680400A (en) * | 1979-12-03 | 1981-07-01 | Matsushita Electric Ind Co Ltd | Powder molding method |
US4402894A (en) * | 1980-06-16 | 1983-09-06 | Champion Spark Plug Company | Production of a ceramic resistor |
US4443171A (en) * | 1982-04-14 | 1984-04-17 | Wesjay, Inc. | Multi-motion mechanical press |
US4487566A (en) * | 1983-07-11 | 1984-12-11 | Barna Alex J | Punching tool having interchangeable punches |
JPS6441761U (de) * | 1987-09-09 | 1989-03-13 | ||
DE8816064U1 (de) * | 1988-06-14 | 1989-02-23 | Henkel KGaA, 4000 Düsseldorf | Rundläuferpresse zum Verpressen von zylindrischen Tabletten |
DE9003241U1 (de) * | 1990-03-17 | 1990-06-13 | Korsch Maschinenfabrik, 1000 Berlin | Rundlaufpresse |
JPH0731914Y2 (ja) * | 1990-05-16 | 1995-07-26 | 日本ニユクリア・フユエル株式会社 | 粉末圧縮成形機用杵 |
JPH04147797A (ja) * | 1990-10-12 | 1992-05-21 | Nikki Kagaku Kk | 粉末打錠成形装置 |
JPH0756154Y2 (ja) * | 1993-02-19 | 1995-12-25 | 株式会社菊水製作所 | 回転式粉末成形機の杵 |
JPH06330998A (ja) * | 1993-05-25 | 1994-11-29 | Japan Storage Battery Co Ltd | ばね式噛み合い誘導機構 |
JPH0739517Y2 (ja) * | 1993-08-30 | 1995-09-13 | 株式会社畑鉄工所 | 回転式粉末圧縮成型機 |
JPH0715197U (ja) * | 1993-08-30 | 1995-03-14 | 株式会社畑鉄工所 | 回転式粉末圧縮成型機 |
DE9409108U1 (de) * | 1994-06-03 | 1994-08-04 | Wilhelm Fette Gmbh, 21493 Schwarzenbek | Preßstempel für eine Tablettiermaschine |
DE4428842C1 (de) * | 1994-08-02 | 1996-01-18 | Mannesmann Ag | Vorrichtung zur Herstellung von Preßkörpern |
JP3059406B2 (ja) * | 1997-08-27 | 2000-07-04 | 本田技研工業株式会社 | 圧粉成形装置 |
JP3032755B1 (ja) * | 1999-02-02 | 2000-04-17 | 株式会社菊水製作所 | 回転式粉末圧縮成形機 |
DE19940701C2 (de) * | 1999-08-27 | 2002-02-07 | Fette Wilhelm Gmbh | Rundlaufpresse |
-
2000
- 2000-03-17 WO PCT/EP2000/002372 patent/WO2000056534A1/de active IP Right Grant
- 2000-03-17 EP EP00918807A patent/EP1165308B1/de not_active Expired - Lifetime
- 2000-03-17 JP JP2000606417A patent/JP2002539951A/ja active Pending
- 2000-03-17 ES ES00918807T patent/ES2248065T3/es not_active Expired - Lifetime
- 2000-03-17 US US09/936,959 patent/US6926511B1/en not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
---|
See references of WO0056534A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO2000056534A1 (de) | 2000-09-28 |
ES2248065T3 (es) | 2006-03-16 |
EP1165308B1 (de) | 2005-08-24 |
JP2002539951A (ja) | 2002-11-26 |
US6926511B1 (en) | 2005-08-09 |
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