Global Patent Index - EP 2670586 B1

EP 2670586 B1 20180502 - PRESS FOR PRESSING WORKPIECES

Title (en)

PRESS FOR PRESSING WORKPIECES

Title (de)

PRESSMASCHINE ZUM PRESSEN VON WERKSTÜCKEN

Title (fr)

PRESSE DE PRESSAGE DE PIÈCES

Publication

EP 2670586 B1 20180502 (DE)

Application

EP 12702817 A 20120202

Priority

  • DE 102011000473 A 20110202
  • EP 2012051789 W 20120202

Abstract (en)

[origin: CA2826250A1] Pressing of workpieces by means of a press, in which a work cycle which is controlled by means of the control device (50) with consideration of the positional values which are determined by means of the position measuring device comprises a pressing stroke, a decompression operation and a controlled return stroke, wherein a) during the pressing stroke, the first delivery device delivers medium (M) from the medium reservoir (5) into the first part chamber (31) in order to build up a hydraulic pressing pressure and the valve (4) is closed and the pressing tool is pressed against the workpiece, b) during the decompression operation, the valve is closed and the first delivery device is switched off or is switched to low-torque operation, c) during the controlled return stroke, the second delivery device delivers hydraulic medium from the medium reservoir (5) into the second part chamber and the valve is opened again, with the result that the working body and the ram are raised back into the starting position again or else into another starting position, and hydraulic medium (M) which is displaced through the open valve (4) flows out of the second part chamber into the medium reservoir.

IPC 8 full level

B30B 1/32 (2006.01); B30B 15/16 (2006.01)

CPC (source: EP US)

B21J 9/12 (2013.01 - EP US); B21J 9/18 (2013.01 - EP); B21J 9/20 (2013.01 - EP US); B30B 1/32 (2013.01 - EP US); B30B 13/00 (2013.01 - US); B30B 15/0052 (2013.01 - EP US); B30B 15/16 (2013.01 - EP US)

Citation (examination)

Designated contracting state (EPC)

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

DOCDB simple family (publication)

DE 102011000473 A1 20120802; DE 102011000473 B4 20170713; CA 2826250 A1 20120809; CA 2826250 C 20170815; CN 103459134 A 20131218; CN 103459134 B 20160817; DK 2670586 T3 20180813; EP 2670586 A1 20131211; EP 2670586 B1 20180502; ES 2682065 T3 20180918; RU 2013139676 A 20150310; RU 2601726 C2 20161110; US 2014318390 A1 20141030; US 9889621 B2 20180213; WO 2012104384 A1 20120809

DOCDB simple family (application)

DE 102011000473 A 20110202; CA 2826250 A 20120202; CN 201280007634 A 20120202; DK 12702817 T 20120202; EP 12702817 A 20120202; EP 2012051789 W 20120202; ES 12702817 T 20120202; RU 2013139676 A 20120202; US 201213955403 A 20120202