EP 1385652 A1 20040204 - HYDRO-MECHANICAL CLAMP IN PARTICULAR FOR TRANSVERSE EXTRUSION
Title (en)
HYDRO-MECHANICAL CLAMP IN PARTICULAR FOR TRANSVERSE EXTRUSION
Title (de)
HYDRAULISCH-MECHANISCHE SCHLIESSVORRICHTUNG, INSBESONDERE ZUM RFLIESSPRESSEN
Title (fr)
DISPOSITIF DE SERRAGE HYDROMECANIQUE SERVANT NOTAMMENT A L'EXTRUSION LATERALE
Publication
Application
Priority
- CH 0200237 W 20020430
- DE 10123745 A 20010511
Abstract (en)
[origin: WO02092258A1] The invention relates to a hydro-mechanical clamp comprising two displaceable die-block halves (M1, M2) and two pressure rams (S1, S2). A first hydraulic piston (K1) is mounted in an axially displaceable first hydraulic cylinder (Z1) and a second hydraulic piston (K2) in a second hydraulic cylinder (Z2) in a displaceable manner. The second die-block half (M2) is fixed to the frame and the second pressure ram (S2) is arranged on the second hydraulic piston (K2). According to the invention, the first hydraulic cylinder (Z1) is connected to a third hydraulic cylinder (Z3), in which a third hydraulic piston (K3) is mounted. The above engages with a fourth hydraulic piston (K4) which runs in a fourth hydraulic cylinder (Z4). The first hydraulic cylinder (Z1) is connected to the third hydraulic cylinder (Z3), such that pressure medium displaced from the first hydraulic cylinder (Z1) on a forwards displacement, flows into the third hydraulic cylinder and the third hydraulic piston (K3) displaces the fourth hydraulic piston (K4) in a forwards direction so that pressure medium is forced into the second hydraulic cylinder (Z2) and the second hydraulic piston (K2) is pressurised with the necessary moulding pressure and the pressure rams (S1, S2) move together.
IPC 1-7
IPC 8 full level
B21J 5/06 (2006.01); B21C 23/21 (2006.01); B21J 5/02 (2006.01)
CPC (source: EP KR US)
B21C 23/21 (2013.01 - KR); B21J 5/02 (2013.01 - EP US)
Citation (search report)
See references of WO 02092258A1
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
WO 02092258 A1 20021121; AT E298638 T1 20050715; CZ 20033322 A3 20040818; CZ 297240 B6 20061011; DE 10123745 A1 20021121; DE 10123745 C2 20030703; DE 50203512 D1 20050804; EP 1385652 A1 20040204; EP 1385652 B1 20050629; ES 2242009 T3 20051101; JP 2004524978 A 20040819; JP 3949057 B2 20070725; KR 100593227 B1 20060628; KR 20030093333 A 20031206; US 2004129053 A1 20040708; US 7059165 B2 20060613
DOCDB simple family (application)
CH 0200237 W 20020430; AT 02719598 T 20020430; CZ 20033322 A 20020430; DE 10123745 A 20010511; DE 50203512 T 20020430; EP 02719598 A 20020430; ES 02719598 T 20020430; JP 2002589181 A 20020430; KR 20037014152 A 20031029; US 47548303 A 20031020