EP 0768127 B1 20000712 - Drawing apparatus for a press
Title (en)
Drawing apparatus for a press
Title (de)
Ziehvorrichtung für eine Presse
Title (fr)
Dispositif d'étirage pour une presse
Publication
Application
Priority
DE 19538316 A 19951014
Abstract (en)
[origin: EP0768127A2] The device has a piston rod (5) to retain a metal sheet in a holder, which can be accelerated before the application of a drawing element. An accelerating cylinder (5) is fixed to the press, and has an accelerating piston which combines with the rod, and which has a larger first pressure surface which opposes the drawing direction, than its opposing second pressure surface. The corresponding first and second pressure spaces (7,8) in the cylinder around the accelerating piston can be connected to a pressure reservoir (11), and the first pressure space can also be connected to a dosing cylinder (15), in which a dosing piston (16) is guided. A forward stroke cylinder (17) is fixed to the press parallel to the retaining piston rod, and has a forward stroke piston rod (18) and a piston (19), which is separated from it by a controlled first pressure volume (20). A second pressure volume (21) can also be displaced by this piston.
IPC 1-7
IPC 8 full level
B21D 24/14 (2006.01)
CPC (source: EP US)
B21D 24/14 (2013.01 - EP US)
Designated contracting state (EPC)
DE ES FR GB IT SE
DOCDB simple family (publication)
EP 0768127 A2 19970416; EP 0768127 A3 19970423; EP 0768127 B1 20000712; CZ 290543 B6 20020814; CZ 298996 A3 19970416; DE 19538316 A1 19970417; DE 59605580 D1 20000817; ES 2149413 T3 20001101; US 5746084 A 19980505
DOCDB simple family (application)
EP 96116085 A 19961008; CZ 298996 A 19961011; DE 19538316 A 19951014; DE 59605580 T 19961008; ES 96116085 T 19961008; US 72915896 A 19961011