EP0077897B2 - Presse pour fabriquer des articles pressés gardant la mesure à partir de matière pulvérulente - Google Patents
Presse pour fabriquer des articles pressés gardant la mesure à partir de matière pulvérulente Download PDFInfo
- Publication number
- EP0077897B2 EP0077897B2 EP82107540A EP82107540A EP0077897B2 EP 0077897 B2 EP0077897 B2 EP 0077897B2 EP 82107540 A EP82107540 A EP 82107540A EP 82107540 A EP82107540 A EP 82107540A EP 0077897 B2 EP0077897 B2 EP 0077897B2
- Authority
- EP
- European Patent Office
- Prior art keywords
- press
- die
- plate
- baseplate
- piston
- 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
- 239000000463 material Substances 0.000 title claims description 3
- 230000008878 coupling Effects 0.000 claims description 18
- 238000010168 coupling process Methods 0.000 claims description 18
- 238000005859 coupling reaction Methods 0.000 claims description 18
- 238000003825 pressing Methods 0.000 claims description 10
- 230000033001 locomotion Effects 0.000 claims description 8
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- BGAJNPLDJJBRHK-UHFFFAOYSA-N 3-[2-[5-(3-chloro-4-propan-2-yloxyphenyl)-1,3,4-thiadiazol-2-yl]-3-methyl-6,7-dihydro-4h-pyrazolo[4,3-c]pyridin-5-yl]propanoic acid Chemical compound C1=C(Cl)C(OC(C)C)=CC=C1C1=NN=C(N2C(=C3CN(CCC(O)=O)CCC3=N2)C)S1 BGAJNPLDJJBRHK-UHFFFAOYSA-N 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000005429 filling process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
Images
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
Definitions
- the invention relates to a press with the preamble of claim 1.
- a base plate and a die-holding plate are provided, which parts are formed from the die-holding plate and a lower coupling plate , by means of tie rods connected framework of a press part, which can be connected as an interchangeable unit through the lower coupling plate on the lower bear of the press.
- the interchangeable unit can be connected to the upper bear of the press by means of an upper coupling plate which is displaceable relative to the die holding plate.
- a known press of this type (DE-OS 20 41 923) has several lower punches, which are supported on corresponding piston-cylinder systems on a base plate of the frame of the press.
- This arrangement allows the lower punches to be driven in a controlled manner and, in particular, to release the compact gradually over the raising lower punches after the die has been removed. This enables damage-free demolding of the compact.
- base plate and the piston-cylinder systems used to move the lower punches are direct components of the press itself, with the result that when the molded parts to be manufactured are set up, the press itself has to be set up, and thus it the press has considerable downtime. This affects the production process considerably, considering the extremely high hourly output of these presses.
- the object of the invention is to provide a press part which is dimensioned and designed so that it can be installed in an adapter via coupling plates in a press.
- the total pressing forces are concentrated within a framework, which is essentially composed of a base plate, the die holding plate and a lower coupling plate, connected by tie rods. Because the machine parts supporting the lower rams are supported in the pressing position on fixed stops of the framework, the piston-cylinder systems used for the displacement of the machine parts can be dimensioned accordingly.
- the press part can be connected to the lower and upper bears of a press using suitable coupling elements.
- FIG. 4 the representation of the intermediate plate and the base plate has been rotated by 90 ° in order to make otherwise invisible parts visible.
- the lower coupling plate 1 is coupled via a connector 2 with a T-piece 3, which is part of the machine frame.
- the lower coupling plate 1 is firmly connected to a die holding plate 5 via the tie rods 4.
- the connector 6 is inserted on the movable part, ie on the upper punch of the press and with the upper coupling lungsplatte 7 connected so that it is connected in this way to the upper punch of the press.
- the upper coupling plate 7 is slidably guided in the die holding plate 5 via guide rods 8.
- the guide rods penetrate the mounting plate 9 through openings which are kept correspondingly large.
- the receiving plate 9 receives one or more stamps. 4 to 6, the stamp 10 is fastened to the mounting plate 9 via a bridge 11 with the aid of a retaining ring 12. 3, piston rods 13 are fastened to the mounting plate 9, the pistons 14 of which can be displaced in the hydraulic cylinder 15 in the base plate 16.
- a further punch 22 sits on an intermediate plate 20 over a bridge 21 similar to bridge 11, which is also fastened to bridge 21 with the aid of a retaining ring 23.
- the piston 26 is fixed in the intermediate plate 20.
- the rotatable cap 29 thus, like the rotatable cap 19, enables the end position of the press to be changed.
- a further piston 30 is arranged in the base plate 16 and is displaceable in a cylinder 31.
- This piston 30 is designed as a hollow piston and has a central opening 32 through which an element to be explained later will be passed.
- a further guide element 33 with a thread 34 sits on the base plate 16, on which a rotatable cap 35 with an internal thread is arranged, which serves for changing the press end position of the piston 30 which is displaceable in the cylinder 31.
- the stop takes place with the aid of a receiving plate 36 which is fixedly arranged on the piston rod 37 of the piston 30.
- an extension piece 39 is seated on the receiving plate 36, on which a further punch 41 is fixed with the aid of a retaining ring 40.
- the stamp 41 is the innermost stamp.
- the three-part stamp arrangement in the exemplary embodiment can be extended or reduced, while maintaining this principle, into a stamp arrangement with more or less than three stamps, or can be selected so that the gradation on the molded body 42 (FIG. 6), which is obtained from the filled-in molding compound 43 ( Fig. 4) is produced, vice versa, ie runs from the inside out. Any other structure, insofar as it can be reached with stamps, can be realized according to this principle.
- a central pin 44 is fastened directly or with the aid of a collar 45 (FIGS. 4 to 6). Then it moves with the coupling plate 1. The center pin 44 continues upwards until it is flush with the die holding plate 5.
- the central pin 44 can, however, also pass freely through the opening 47 in the lower coupling plate 1 and be coupled to a piston 48 which can be actuated in a hydraulic cylinder 49 which is arranged in the T-piece 3. This means that it can be moved independently of the movement of the die holding plate 5.
- a scale 52 is provided for the piston 30 in the cylinder 31, which slides in a bore 53 in the base plate 16.
- the scale 52 is firmly attached to the piston 30 and thus follows its movement.
- the scale 52 allows any measurement of the path of the associated piston 30 relative to the base plate 16, so that it is possible to electronically evaluate the determined value and to supply it to a corresponding control device.
- the scale With each path length unit, for example 1 / 100th of a millimeter, the scale triggers a pulse in the electronic control, the machine being controlled for the next locomotion after a certain pulse quantity has been reached.
- this next movement consists in the relative movement between the base plate 16 and the intermediate plate 20 and is tracked with the aid of the measuring rod 54, which dips into the bore 55 in the intermediate plate 20.
- the center pin 44 is coupled to the piston 48, it can also be brought into any desired position relative to the die holding plate 5 with the aid of a scale (not shown) and this at a preselected speed. It can be used to influence the powder flow regardless of temperature changes and friction conditions. This solves the problem resulting from the fact that the punches 10, 22 and 41 and the central pin 44 heat up in the course of the sequence of the pressing processes and the frictional relationships between the molded body and them change during the compression process and thus to an uncontrollable powder flow with resulting changes in density in the pressed molded body. This can now be successfully counteracted by a controlled movement of the stamp and the central pin from the filling to the pressing position.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Press Drives And Press Lines (AREA)
- Powder Metallurgy (AREA)
Claims (6)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3142126 | 1981-10-23 | ||
DE19813142126 DE3142126A1 (de) | 1981-10-23 | 1981-10-23 | "presse zum herstellen masshaltiger presslinge aus pulverfoermigem material" |
Publications (4)
Publication Number | Publication Date |
---|---|
EP0077897A2 EP0077897A2 (fr) | 1983-05-04 |
EP0077897A3 EP0077897A3 (en) | 1984-11-28 |
EP0077897B1 EP0077897B1 (fr) | 1987-04-15 |
EP0077897B2 true EP0077897B2 (fr) | 1993-08-25 |
Family
ID=6144719
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP82107540A Expired - Lifetime EP0077897B2 (fr) | 1981-10-23 | 1982-08-18 | Presse pour fabriquer des articles pressés gardant la mesure à partir de matière pulvérulente |
Country Status (3)
Country | Link |
---|---|
US (1) | US4482307A (fr) |
EP (1) | EP0077897B2 (fr) |
DE (1) | DE3142126A1 (fr) |
Families Citing this family (37)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4608852A (en) | 1983-08-24 | 1986-09-02 | Amada Company, Limited | Press machine |
DE3541387A1 (de) * | 1985-11-22 | 1987-05-27 | Netzsch Maschinenfabrik | Presse zum herstellen von formlingen aus pulver- oder granulatfoermigen werkstoffen |
AT384954B (de) * | 1986-09-11 | 1988-02-10 | Simmering Graz Pauker Ag | Hochdruckgefaess mit stampfeinrichtung |
ATE55086T1 (de) * | 1987-05-07 | 1990-08-15 | Graebener Theodor Pressensyst | Presse, insbesondere zum herstellen masshaltiger presslinge aus pulverfoermigen werkstoffen, und verfahren zum betrieb einer solchen presse. |
IT1221597B (it) * | 1987-07-24 | 1990-07-12 | Ugo Giannelli | Apprecchiatura di stampaggio e sformatura di manufatti in cemento prodotti dalle presse |
EP0305566B1 (fr) * | 1987-09-02 | 1991-03-20 | Gräbener Pressensysteme GmbH & Co. KG | Presse, notamment pour fabriquer des articles pressés gardant un format donné à partir de matières pulvérulentes |
US5034448A (en) * | 1987-09-17 | 1991-07-23 | The Dow Chemical Company | Slip composition for whiteware articles |
US4915890A (en) * | 1987-09-17 | 1990-04-10 | The Dow Chemical Company | Casting process |
DE3829128A1 (de) * | 1988-08-27 | 1990-03-08 | Laeis Gmbh | Verfahren zur herstellung von pressformteilen und vorrichtung zur durchfuehrung des verfahrens |
DE3940192A1 (de) * | 1989-02-02 | 1990-08-09 | Gottfried Weber | Hydraulische presse |
DE3904617A1 (de) * | 1989-02-16 | 1990-08-23 | Didier Werke Ag | Presse zum kaltformen von formmassen zu formkoerpern, insbesondere keramischen steinen |
US5192560A (en) * | 1989-03-07 | 1993-03-09 | Canon Kabushiki Kaisha | Variable mold apparatus |
DE3909757A1 (de) * | 1989-03-23 | 1990-09-27 | Dorst Masch & Anlagen | Presse mit einem in die presse einsetzbaren werkzeuggestell |
DE3916774A1 (de) * | 1989-05-23 | 1990-11-29 | Anton Heggenstaller | Verfahren und vorrichtung zum pressen eines biegesteifen balkenfoermigen formkoerpers aus pflanzlichen kleinteilen |
DE3919821C2 (de) * | 1989-06-15 | 1994-04-07 | Mannesmann Ag | Verfahren und Vorrichtung zum Herstellen von maßhaltigen Preßlingen |
DE4000423C2 (de) * | 1990-01-09 | 1998-10-08 | Dorst Masch & Anlagen | Presse zur Herstellung maßhaltiger Preßlinge aus pulverförmigem Material |
JPH07115233B2 (ja) * | 1990-08-10 | 1995-12-13 | 株式会社ヨシツカ精機 | 粉末成形プレス |
DE9203546U1 (de) * | 1992-03-17 | 1993-07-22 | Komage - Gellner & Co. Maschinenfabrik KG, 54427 Kell | Vorrichtung zum Pressen von Formteilen aus einer feinkörnigen Masse |
DE4227640A1 (de) * | 1992-08-18 | 1994-02-24 | Mannesmann Ag | Presse zur Herstellung maßhaltiger Preßkörper |
JP2980484B2 (ja) * | 1993-06-14 | 1999-11-22 | コータキ精機株式会社 | ダイセット式粉末成形プレス機 |
JPH08506057A (ja) * | 1993-11-24 | 1996-07-02 | スタックポール リミテッド | アンダーカット割形ダイ |
ATE182841T1 (de) * | 1993-11-24 | 1999-08-15 | Stackpole Ltd | Versetzte mehrteilige pressform |
AT402375B (de) * | 1994-10-14 | 1997-04-25 | Kranzinger Norbert | Verfahren und vorrichtung zum herstellen von hohlbausteinen |
US6440357B1 (en) | 1996-05-09 | 2002-08-27 | Stackpole Limited | Compacted-powder opposed twin-helical gears and method |
US6165400A (en) * | 1996-05-09 | 2000-12-26 | Stackpole Limited | Compacted-powder opposed twin-helical gears and method |
GB2360825B (en) * | 2000-03-30 | 2004-11-17 | Formflo Ltd | Gear wheels roll formed from powder metal blanks |
DE10135523C2 (de) * | 2001-07-20 | 2003-07-31 | Dorst Masch & Anlagen | Presseneinrichtung zum Herstellen maßhaltiger Presslinge aus pulverförmigen Metall |
DE10151858A1 (de) * | 2001-10-24 | 2003-05-08 | Dorst Masch & Anlagen | Verfahren zum Einstellen bzw. Überwachen eines Pressen-Werkzeugs und Pressen-Werkzeug bzw. Pressen-Steuereinrichtung dafür |
WO2003059608A1 (fr) * | 2002-01-15 | 2003-07-24 | Hawk Precision Components Group, Inc. | Outil de forage servant au compactage de materiaux particulaires |
DE10254656B4 (de) | 2002-11-22 | 2005-10-13 | Dorst Technologies Gmbh & Co. Kg | Presseneinrichtung zum Herstellen maßhaltiger Presslinge mit zentraler Stempelabstützung |
DE10355963A1 (de) * | 2002-12-02 | 2004-06-24 | Mold-Masters Limited, Georgetown | Hubbegrenzer für einen Nadelventilbetätigungsmechanismus |
DE102005044759B4 (de) * | 2005-09-20 | 2007-07-12 | Sms Meer Gmbh | Vorrichtung zum Herstellen eines Formteils |
EP1849590B1 (fr) | 2006-04-29 | 2013-05-15 | Fette GmbH | Presse |
EP1849591B1 (fr) | 2006-04-29 | 2016-02-03 | Fette GmbH | Presse |
CN100410067C (zh) * | 2006-07-14 | 2008-08-13 | 严培义 | 粉末成形机双上冲内冲调整机构 |
CN103072299B (zh) * | 2012-12-25 | 2015-01-07 | ***容环保科技有限公司 | 带有移动垫块的油压机 |
EP3530448B1 (fr) * | 2018-02-26 | 2023-06-21 | Osterwalder AG | Dispositif de presse pour une presse à poudre et un système de changement d'outil |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2556951A (en) * | 1944-06-05 | 1951-06-12 | Stokes Machine Co | Powdered material compacting press |
US2509783A (en) * | 1945-10-17 | 1950-05-30 | Hpm Dev Corp | Apparatus for molding |
DE976579C (de) * | 1946-12-04 | 1963-12-05 | Husqvarna Vapenfabriks Ab | Presswerkzeug zum Herstellen von zu sinternden Presskoerpern aus Metallpulver |
GB677234A (en) * | 1947-10-20 | 1952-08-13 | Haller John | An improved machine for briquetting powdered metal |
US3191232A (en) * | 1961-12-07 | 1965-06-29 | Haller John | Hydraulic compacting press |
US3172156A (en) * | 1962-09-06 | 1965-03-09 | Cincinnati Shaper Co | Compacting press |
US3337916A (en) * | 1965-10-28 | 1967-08-29 | Cincinnati Shaper Co | Compacting press with selective ejection |
SE338241B (fr) * | 1967-03-22 | 1971-08-30 | Asea Ab | |
GB1234164A (fr) * | 1968-03-20 | 1971-06-03 | ||
US3647332A (en) * | 1969-08-29 | 1972-03-07 | Parker Hannifin Corp | Hydraulic press |
US3664784A (en) * | 1970-01-19 | 1972-05-23 | Pennwalt Corp | Compacting press |
US3868201A (en) * | 1973-04-17 | 1975-02-25 | Wickes Corp | Powdered metal press |
DE2519708C3 (de) * | 1974-05-03 | 1980-04-10 | Agence Nationale De Valorisation De La Recherche (Anvar), Neuilly-Sur-Seine, Hauts-De-Seine (Frankreich) | Verfahren und Vorrichtung zum Herstellen von Kontaktlinsen |
US4153399A (en) * | 1977-09-08 | 1979-05-08 | Ptx-Pentronix, Inc. | Multiple punch tool set for powder compacting press |
IT1107475B (it) * | 1978-07-24 | 1985-11-25 | Merisinter Spa | Complesso di pressa e porta-stampo per la compattazione nella metallurgia delle polveri |
DE2924704A1 (de) * | 1979-06-19 | 1981-01-15 | Dorst Keramikmasch | Einrichtung zur festlegung der hoehe von pressteilen an einer presse, insbesondere zum pressen von pressteilen aus pulverfoermigem ausgangsmaterial |
DE2925902A1 (de) * | 1979-06-27 | 1981-01-15 | Manfred Wanzke | Signalvorrichtung zur erzeugung von elektrischen steuersignalen fuer eine steuervorrichtung einer presse |
JPS599280B2 (ja) * | 1980-09-09 | 1984-03-01 | 玉川機械株式会社 | 粉末成形プレスにおける浮動パンチ停止解放装置 |
-
1981
- 1981-10-23 DE DE19813142126 patent/DE3142126A1/de active Granted
-
1982
- 1982-08-18 EP EP82107540A patent/EP0077897B2/fr not_active Expired - Lifetime
- 1982-08-30 US US06/412,398 patent/US4482307A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE3142126C2 (fr) | 1988-01-14 |
EP0077897A2 (fr) | 1983-05-04 |
EP0077897B1 (fr) | 1987-04-15 |
EP0077897A3 (en) | 1984-11-28 |
DE3142126A1 (de) | 1983-05-11 |
US4482307A (en) | 1984-11-13 |
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