EP 0597468 B1 19960103 - Hydraulic feeding drive for flying upsetting presses
Title (en)
Hydraulic feeding drive for flying upsetting presses
Title (de)
Hydraulischer Vorschubantrieb für fliegende Stauchpressen
Title (fr)
Mécanisme d'avancement hydraulique pour presses à refouler volantes
Publication
Application
Priority
DE 4238154 A 19921112
Abstract (en)
[origin: EP0597468A1] The present invention relates to a position control system for flying upsetting presses in which the feeding drives are connected into closed hydraulic circuits and are driven by positive displacement pumps. To increase the dynamic response, the hydraulic circuits are pressurised and, to increase the accuracy of control, internal control circuits and superimposed control circuits for the individual control components are provided.
IPC 1-7
IPC 8 full level
B21B 15/00 (2006.01); B21B 39/00 (2006.01); B21J 7/18 (2006.01); B21J 9/12 (2006.01); F15B 11/22 (2006.01)
CPC (source: EP US)
B21B 15/0035 (2013.01 - EP US); B21J 7/18 (2013.01 - EP US); B21J 9/12 (2013.01 - EP US); F15B 11/22 (2013.01 - EP US)
Designated contracting state (EPC)
AT DE FR GB IT SE
DOCDB simple family (publication)
EP 0597468 A1 19940518; EP 0597468 B1 19960103; AT E132404 T1 19960115; CN 1049615 C 20000223; CN 1093621 A 19941019; DE 4238154 A1 19940519; DE 59301327 D1 19960215; JP 3337283 B2 20021021; JP H06254607 A 19940913; RU 2104106 C1 19980210; US 5417098 A 19950523
DOCDB simple family (application)
EP 93118241 A 19931111; AT 93118241 T 19931111; CN 93114401 A 19931112; DE 4238154 A 19921112; DE 59301327 T 19931111; JP 27702093 A 19931105; RU 93050866 A 19931111; US 15170193 A 19931112