Global Patent Index - EP 2103423 B1

EP 2103423 B1 20110309 - Powder moulding press for producing a pressed product from metal powder

Title (en)

Powder moulding press for producing a pressed product from metal powder

Title (de)

Pulverpresse zur Herstellung eines Presslings aus Metallpulver

Title (fr)

Presse à poudre destinée à la fabrication d'une pièce pressée en poudre de métal

Publication

EP 2103423 B1 20110309 (DE)

Application

EP 08152858 A 20080317

Priority

EP 08152858 A 20080317

Abstract (en)

[origin: EP2103423A1] The lower plunger assembly (1) is equipped with a plate (2) on which the matrix assembly (3) is fitted. Transverse pressing units (4) are also attached to the plate (2). Each has a transverse pressing plunger (5) connected to a linear drive. Each plunger enters an opening (6) into the molding cavity (8) of the matrix (7). It can be pressed in and retracted, transverse to the main pressing direction. A linear drive is used with each transverse pressing unit. The linear drive has a fixed component fastened to the frame and a part moved linearly relative to the fixed component. This is connected to a wedge. The latter has a wedge surface acting on the wedge surface of a second wedge. This wedge is moved essentially at right angles to the first wedge, in a transverse direction. The two wedges are moved along linear guides fitted to the frame of the transverse pressing unit. The pressing position reached by the transverse plunger (5) is limited by an adjustable stop. This is a third wedge which is adjusted transversely with respect to the direction of movement of the first wedge, guided in the frame. It acts against a further wedge surface of the first wedge. The position of the transverse plunger in relation to the matrix assembly is detected by measurement sensors and transmitted to the control unit. Each transverse press plunger is held by a coupler in the respective transverse pressing unit. The transverse pressing unit has a peg projecting into one of a number of bores in the plate, when mounted upon it. Several transverse pressing units can be fitted to the same plate in this way. The bores in the plate are associated with corresponding tapped bores for clamping screws. These are held in suitable recesses in the frame of each transverse pressing unit. The recesses are slot-shaped.

IPC 8 full level

B30B 11/00 (2006.01); B22F 3/03 (2006.01)

CPC (source: EP)

B22F 3/03 (2013.01); B30B 1/40 (2013.01); B30B 7/04 (2013.01); B30B 11/007 (2013.01); B22F 2003/031 (2013.01)

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

DOCDB simple family (publication)

EP 2103423 A1 20090923; EP 2103423 B1 20110309; EP 2103423 B8 20110615; AT 500958 T 20110315; CN 101977760 A 20110216; CN 101977760 B 20140122; DE 502008002806 D1 20110421; ES 2362317 T3 20110701; JP 2011514260 A 20110506; JP 5479445 B2 20140423; KR 101484645 B1 20150121; KR 20100116231 A 20101029; US 2011027400 A1 20110203; US 8523550 B2 20130903; WO 2009115444 A1 20090924

DOCDB simple family (application)

EP 08152858 A 20080317; AT 08152858 T 20080317; CN 200980109339 A 20090312; DE 502008002806 T 20080317; EP 2009052905 W 20090312; ES 08152858 T 20080317; JP 2011500155 A 20090312; KR 20107022324 A 20090312; US 92287109 A 20090312