EP 2433720 B1 20131113 - Four-roll bending machine and method for bending, round bending and rolling sheet
Title (en)
Four-roll bending machine and method for bending, round bending and rolling sheet
Title (de)
Vierwalzenbiegemaschine und Verfahren zum An- und Rundbiegen bzw. -walzen von Blechen
Title (fr)
Machine de pliage à quatre cylindres et procédé de pliage et de cintrage ou de laminage en rond de tôles
Publication
Application
Priority
DE 102010041296 A 20100923
Abstract (en)
[origin: EP2433720A1] The machine (1) has a support frame (8) pivotably supported in a machine frame (2), where the support frame has an upper pressing piece (10) and a lower pressing piece (12) engaging at an upper roller (4) and a lower roller (5) during bending of a metal sheet. The lower pressing piece is vertically movable in the support frame. The upper pressing piece is fixedly fastened at the support frame such that the support frame is vertically movable. Degrees of freedom of the support frame are decoupled from a bottom (13) of the machine frame during bending and/or rolling of the metal sheet. An independent claim is also included for a method for bending, round bending and rolling of a metal sheet.
IPC 8 full level
CPC (source: EP)
B21D 5/14 (2013.01)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 2433720 A1 20120328; EP 2433720 B1 20131113; DE 102010041296 A1 20120329; PL 2433720 T3 20140430
DOCDB simple family (application)
EP 11181544 A 20110916; DE 102010041296 A 20100923; PL 11181544 T 20110916