EP 0778094 B1 20010404 - Transfer device for multi-stage presses
Title (en)
Transfer device for multi-stage presses
Title (de)
Transfereinrichtung für Mehrstationenpressen
Title (fr)
Dispositif de transfert dans presse de formages à postes multiples
Publication
Application
Priority
DE 19545570 A 19951207
Abstract (en)
[origin: EP0778094A1] A transfer system for a multistage press has two adjustable supports which have grippers and which are arranged parallel to a row of workpiece work stations, the novelty being that the supports are in the form of two parallel gripper rails (12, 13) arranged on one side of the row of work stations (dies 5a to 5e). Preferably, each gripper has two fingers (14, 15) mounted on different gripper rails (12, 13) the rails being counter-adjustable in their longitudinal direction with respect to the workpiece to effect griping and release of a workpiece. Preferably, the fingers (14, 15) consists of rigid cantilevers which follow arcuate paths during their gripping and release movements. The rails (12, 13) are preferably supported on a common support (19) which can be moved with respect to the press preferably by swivelling into a rest position about a pivot axis parallel to a line defined by the press tools (5). Preferably, the support (19) has a gear system (31, 32, 33, 34) which effects the counter-adjustment of the rails (12, 13) and which is connected to a common drive system (36, 39, 41, 42). Each rail (12, 13) is preferably supported by two crank arms and all the crank arms (23, 27; 24, 28) are driven by a central drive (45, 43) via the gear system (31-34). Preferably, the support (19) can be moved perpendicularly to its length direction (21) by a lifting device, so that the fingers (14, 15) can move towards and away from the tools, or can be moved longitudinally by a pusher device, so that the fingers (14, 15) can move parallel to a row of tools. Preferably, the central drive (45, 43) is used for the gripping motion of the rails (12, 13) and the advancing and lifting motions of the support (19).
IPC 1-7
IPC 8 full level
B21D 43/05 (2006.01); B21K 27/04 (2006.01)
CPC (source: EP US)
B21K 27/04 (2013.01 - EP US)
Designated contracting state (EPC)
CH DE ES FR GB IT LI SE
DOCDB simple family (publication)
EP 0778094 A1 19970611; EP 0778094 B1 20010404; DE 19545570 A1 19970612; DE 59606707 D1 20010510; ES 2156609 T3 20010701; US 5775163 A 19980707
DOCDB simple family (application)
EP 96119403 A 19961204; DE 19545570 A 19951207; DE 59606707 T 19961204; ES 96119403 T 19961204; US 76060496 A 19961204