EP 1318906 B1 20090930 - CONTROLLER FOR A HYDRAULIC PRESS AND METHOD FOR THE OPERATION THEREOF
Title (en)
CONTROLLER FOR A HYDRAULIC PRESS AND METHOD FOR THE OPERATION THEREOF
Title (de)
STEUERVORRICHTUNG FÜR EINE HYDRAULISCHE PRESSE SOWIE VERFAHREN ZU DEREN BETRIEB
Title (fr)
DISPOSITIF DE COMMANDE POUR UNE PRESSE HYDRAULIQUE ET PROCEDE POUR SON FONCTIONNEMENT
Publication
Application
Priority
- CH 18262000 A 20000920
- IB 0101527 W 20010824
Abstract (en)
[origin: US6973780B2] The invention relates to a controller for a hydraulic press, comprising a pressing cylinder ( 1 ), a reservoir ( 2 ), a valve group ( 3 ), a pressure medium reservoir ( 7 ) and a hydraulic pump ( 6 ), connected together by means of a cylinder line ( 4 ), a reservoir line ( 5 ) and a tank line ( 8 ). According to the invention, a pressure converter ( 9 ) is arranged on the valve group ( 3 ), which may operate as a pressure amplifier or pressure reducer. The particular mode of action of said controller is achieved whereby the valve group ( 3 ) comprises a pre-press valve ( 11 ), a low-pressure chamber outlet valve ( 12 ), a low-pressure chamber inlet valve ( 13 ), a main press valve ( 14 ), a closing valve ( 15 ), a pressure release valve ( 16 ) and a 3-way valve ( 17 ), which may be operated by a particular control sequence. Said invention is applicable in hydraulic presses and of particular advantage in presses for the forming of ceramic pieces such as tiles.
IPC 8 full level
B30B 15/16 (2006.01); F15B 3/00 (2006.01); B30B 1/32 (2006.01); B30B 15/22 (2006.01); F15B 1/02 (2006.01); F15B 11/028 (2006.01); F15B 11/032 (2006.01); F15B 21/14 (2006.01)
CPC (source: EP KR US)
B30B 15/16 (2013.01 - KR); B30B 15/161 (2013.01 - EP US); B30B 15/163 (2013.01 - EP US); B30B 15/22 (2013.01 - EP US); F15B 1/024 (2013.01 - EP US); F15B 11/0325 (2013.01 - EP US); F15B 21/14 (2013.01 - EP US); F15B 2211/20538 (2013.01 - EP US); F15B 2211/212 (2013.01 - EP US); F15B 2211/214 (2013.01 - EP US); F15B 2211/30505 (2013.01 - EP US); F15B 2211/30525 (2013.01 - EP US); F15B 2211/3144 (2013.01 - EP US); F15B 2211/327 (2013.01 - EP US); F15B 2211/40515 (2013.01 - EP US); F15B 2211/426 (2013.01 - EP US); F15B 2211/455 (2013.01 - EP US); F15B 2211/46 (2013.01 - EP US); F15B 2211/6313 (2013.01 - EP US); F15B 2211/6336 (2013.01 - EP US); F15B 2211/7052 (2013.01 - EP US); F15B 2211/775 (2013.01 - EP US)
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 0224441 A1 20020328; AT E444157 T1 20091015; AU 7865101 A 20020402; BR 0113991 A 20030812; BR 0113991 B1 20100518; CA 2422879 A1 20030319; CN 1243637 C 20060301; CN 1461255 A 20031210; DE 50115141 D1 20091112; EP 1318906 A1 20030618; EP 1318906 B1 20090930; ES 2329443 T3 20091126; JP 2004522580 A 20040729; JP 5058426 B2 20121024; KR 20030032042 A 20030423; US 2003167936 A1 20030911; US 6973780 B2 20051213
DOCDB simple family (application)
IB 0101527 W 20010824; AT 01956735 T 20010824; AU 7865101 A 20010824; BR 0113991 A 20010824; CA 2422879 A 20010824; CN 01815985 A 20010824; DE 50115141 T 20010824; EP 01956735 A 20010824; ES 01956735 T 20010824; JP 2002528486 A 20010824; KR 20037003958 A 20030319; US 38088703 A 20030415