EP 0751842 B1 19990519 - DOUBLE PRESS
Title (en)
DOUBLE PRESS
Title (de)
DOPPELPRESSE
Title (fr)
PRESSE DOUBLE
Publication
Application
Priority
- DE 4446580 A 19941224
- EP 9504226 W 19951027
Abstract (en)
[origin: US5732588A] PCT No. PCT/EP95/04226 Sec. 371 Date Aug. 26, 1996 Sec. 102(e) Date Aug. 26, 1996 PCT Filed Oct. 27, 1995 PCT Pub. No. WO96/20053 PCT Pub. Date Jul. 4, 1996The invention pertains to a double press for forging round or edged bar-shaped workpieces using two presses set at 90 DEG to each other, each having a pair of forging tools (A1, A2, B1, B2) that hydraulically work pairs I and II of the forging tools being driven alternatingly and each of the pump assemblies (5,6) being connected on its delivery side to a piston-cylinder unit (1,3) of a forging tool (A1, A2) of the one pair I and on its suction side to a piston-cylinder unit (2,4) of a forging tool (B1, B2) of the other pair II, and with the main lines (21, 22, 23, 24) between the pump assemblies (5,6) and the piston-cylinder units (1, 2, 3, 4) being free of valves. The delivery direction of the pump assemblies (5,6) is reversible, so that the pumps' delivery and suction sides change with a reversal of the delivery direction.
IPC 1-7
IPC 8 full level
B21J 7/14 (2006.01); B21J 7/46 (2006.01); B21J 9/06 (2006.01); B21J 9/12 (2006.01); B30B 1/32 (2006.01)
CPC (source: EP US)
B21J 7/14 (2013.01 - EP US); B21J 9/06 (2013.01 - EP US); B21J 9/12 (2013.01 - EP US); B30B 7/04 (2013.01 - EP US)
Designated contracting state (EPC)
AT DE IT
DOCDB simple family (publication)
US 5732588 A 19980331; AT E180187 T1 19990615; DE 29516647 U1 19951221; DE 4446580 A1 19960704; DE 59505975 D1 19990624; EP 0751842 A1 19970108; EP 0751842 B1 19990519; JP H09510145 A 19971014; WO 9620053 A1 19960704
DOCDB simple family (application)
US 70247596 A 19960826; AT 95937017 T 19951027; DE 29516647 U 19951021; DE 4446580 A 19941224; DE 59505975 T 19951027; EP 9504226 W 19951027; EP 95937017 A 19951027; JP 52013795 A 19951027