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1. WO2007019832 - METHOD AND DEVICE FOR PRESSING A MOLDED PART BY MEANS OF A TRANSVERSAL MALE MOLD

Publication Number WO/2007/019832
Publication Date 22.02.2007
International Application No. PCT/DE2006/001423
International Filing Date 14.08.2006
IPC
B22F 3/03 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
22CASTING; POWDER METALLURGY
FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
3Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor
02Compacting only
03Press-moulding apparatus therefor
B30B 15/02 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
30PRESSES
BPRESSES IN GENERAL; PRESSES NOT OTHERWISE PROVIDED FOR
15Details of, or accessories for, presses; Auxiliary measures in connection with pressing
02Dies; Inserts therefor or mountings thereof; Moulds
B30B 11/02 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
30PRESSES
BPRESSES IN GENERAL; PRESSES NOT OTHERWISE PROVIDED FOR
11Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses or tabletting presses
02using a ram exerting pressure on the material in a moulding space
CPC
B22F 3/03
BPERFORMING OPERATIONS; TRANSPORTING
22CASTING; POWDER METALLURGY
FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER
3Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; ; Presses and furnaces
02Compacting only
03Press-moulding apparatus therefor
B30B 1/26
BPERFORMING OPERATIONS; TRANSPORTING
30PRESSES
BPRESSES IN GENERAL
1Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen
26by cams, eccentrics, or cranks
B30B 1/261
BPERFORMING OPERATIONS; TRANSPORTING
30PRESSES
BPRESSES IN GENERAL
1Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen
26by cams, eccentrics, or cranks
261by cams
B30B 11/007
BPERFORMING OPERATIONS; TRANSPORTING
30PRESSES
BPRESSES IN GENERAL
11Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
007using a plurality of pressing members working in different directions
B30B 11/027
BPERFORMING OPERATIONS; TRANSPORTING
30PRESSES
BPRESSES IN GENERAL
11Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
02using a ram exerting pressure on the material in a moulding space
027Particular press methods or systems
B30B 7/04
BPERFORMING OPERATIONS; TRANSPORTING
30PRESSES
BPRESSES IN GENERAL
7Presses characterised by a particular arrangement of the pressing members
04wherein pressing is effected in different directions simultaneously or in turn
Applicants
  • DORST TECHNOLOGIES GMBH & CO. KG [DE]/[DE] (AllExceptUS)
  • MENZEL, Roland [DE]/[DE] (UsOnly)
  • SILBERMANN, Michael, Thomas [DE]/[DE] (UsOnly)
  • ZIPPEL, Karl [DE]/[DE] (UsOnly)
Inventors
  • MENZEL, Roland
  • SILBERMANN, Michael, Thomas
  • ZIPPEL, Karl
Agents
  • THIELE, Thomas
Priority Data
10 2005 038 915.517.08.2005DE
Publication Language German (DE)
Filing Language German (DE)
Designated States
Title
(DE) VERFAHREN UND VORRICHTUNG ZUM PRESSEN EINES FORMTEILS MIT EINEM QUERSTEMPEL
(EN) METHOD AND DEVICE FOR PRESSING A MOLDED PART BY MEANS OF A TRANSVERSAL MALE MOLD
(FR) PROCEDE ET DISPOSITIF DE COMPRESSION D'UN ARTICLE MOULE AU MOYEN D'UN POINÇON TRANSVERSAL
Abstract
(DE)
Die Erfindung bezieht sich auf Verfahren zum Pressen eines Formteils, bei dem ein keramisches und/oder metallisches zu verpressendes Material, insbesondere pulver- und/oder granulatförmiges Material (3) in eine Matrizenöffnung (2) einer Matrize (1) gefüllt wird, längs einer Verdichtungsachse (X) mit zumindest einem Pressstempel (4, 5) das Material (3) gepresst wird und in einer Richtung mit einer Bewegungskomponente senkrecht zur ersten Verdichtungsachse (X) längs einer Querachse (QX) ein Querstempel (6) in das Material (3) verstellt wird, wobei das Verstellen des Querstempels (6) während und/oder nach dem Verpressen des Materials längs der Verdichtungsachse (X) durchgeführt wird, insbesondere während und/oder nach Beginn des Verdichtungsvorgangs des Materials (3) durchgeführt wird. Insbesondere wird verfahrensgemäß eine Ansteuerung von Pressstempeln längs der Verdichtungsachse derart vorgenommen, dass auf den Querstempel aus Richtung der Verdichtungsachse beidseitig etwa gleiche Kräfte einwirken. Zum Reduzieren des Bauraums seitlich der Matrize und zum Aufbringen trotzdem ausreichender Kräfte für den Querstempel wird vorteilhafterweise ein Exzenterantrieb eingesetzt.
(EN)
The invention relates to a method for pressing a molded part, in which a ceramic and/or metallic material that is to be pressed, especially powdered and/or granular material (3), is filled into an orifice (2) of a female mold (1), the material (3) is pressed along a compacting axis (X) with the aid of at least one male mold (4, 5), and a transversal male mold (6) is moved into the material (3) along a transversal axis (QX) in a direction that has a movement component extending perpendicular to the first compacting axis (X), the transversal male mold (6) being moved at the same time as and/or after the material is pressed along the compacting axis (X), especially during and/or after the beginning of the compacting process of the material (3). In particular, male molds are triggered along the compacting axis in such a way that approximately identical forces act upon the transversal male mold on both sides from the direction of the compacting axis. Advantageously, an eccentric drive unit is used in order to reduce the space extending laterally from the female mold while being able to apply a sufficient amount of force to the transversal male mold.
(FR)
L'invention concerne un procédé de compression d'un article moulé selon lequel un matériau céramique et/ou métallique à comprimer, notamment un matériau pulvérulent et/ou granulaire (3) est introduit dans une ouverture (2) d'une matrice (1) ; le matériau (3) est comprimé le long d'un axe de compression (X) au moyen d'au moins un poinçon de compression (4, 5) ; et, un poinçon transversal (6) est déplacé dans le matériau (3) dans une direction avec une composante de déplacement perpendiculaire au premier axe de compression (X), le long d'un axe transversal (QX), le poinçon transversal (6) étant déplacé pendant et/ou après compression du matériau le long de l'axe de compression (X), notamment pendant et/ou après démarrage du processus de compression du matériau (3). Les poinçons de compression sont notamment commandés de telle manière le long de l'axe de compression que les forces agissant des deux côtés sur le poinçon transversal dans l'axe de compression sont essentiellement égales. Pour réduire l'encombrement sur le côté de la matrice et pour appliquer des forces toutefois suffisantes pour le poinçon transversal, un entraînement à excentrique est de préférence employé.
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