EP 1304178 B1 20070207 - High performance machine with thermal compensation for programmed sheet bending with constant bending angle
Title (en)
High performance machine with thermal compensation for programmed sheet bending with constant bending angle
Title (de)
Hochleistung-Maschine mit thermischer Kompensation zum programmierten Biegen von Blechen mit konstantem Biegewinkel
Title (fr)
Machine à haute performance à compensation thermique pour le pliage programmé des tôles avec angle de pliage constant
Publication
Application
Priority
JP 2001006860 U 20011022
Abstract (en)
[origin: EP1304178A2] A sheet metal bending machine is provided with a bending unit (8) moved by hydraulic cylinders (12, 15) with sliding pistons (20, 21). The cylinders (12, 15) are controlled by a closed loop control system comprising temperature measuring means (18) for measuring the cylinder temperature, position detecting means (19) for detecting the piston position and a control unit (17) for varying the rate of hydraulic fluid fed to the cylinders (12, 15) according to the measured cylinder temperature and the detected piston position. <IMAGE>
IPC 8 full level
CPC (source: EP KR US)
B21D 5/00 (2013.01 - KR); B21D 5/045 (2013.01 - EP US)
Designated contracting state (EPC)
DE ES FR GB IT
DOCDB simple family (publication)
EP 1304178 A2 20030423; EP 1304178 A3 20050413; EP 1304178 B1 20070207; CA 2397358 A1 20030422; CN 1250356 C 20060412; CN 1413780 A 20030430; DE 60218008 D1 20070322; DE 60218008 T2 20070628; ES 2279851 T3 20070901; JP 3085503 U 20020510; KR 100880245 B1 20090128; KR 20030033978 A 20030501; US 2003074942 A1 20030424
DOCDB simple family (application)
EP 02079262 A 20021016; CA 2397358 A 20020809; CN 02141586 A 20020903; DE 60218008 T 20021016; ES 02079262 T 20021016; JP 2001006860 U 20011022; KR 20020064678 A 20021022; US 26683402 A 20021008