EP 0238377 B1 19900418 - ROLL BENDING CONTROL IN A ROLLING MILL WITH AXIALLY SHIFTABLE ROLLS
Title (en)
ROLL BENDING CONTROL IN A ROLLING MILL WITH AXIALLY SHIFTABLE ROLLS
Publication
Application
Priority
FR 8602044 A 19860214
Abstract (en)
[origin: US4773246A] A rolling mill with axially movable rolls, comprising a supporting frame (4), at least two working rolls (1, 1') and at least two back-up rolls (2, 2'), at least one of the working rolls (1) being associated with means (42) for moving the roll (1) along its axis (10) and, for each chock (3), with two symmetrical sets of at least two bending jacks (6, 66). The offset of the roll (1) in relation to a centering position is measured continuously, and the pressure exerted by each bending jack (6) is adjusted at each moment as a function of the offset measured and of the position at the same moment of the particular jack (6) in relation to the mid-plane (P5) of a bearing (12), such that the resultant of the bending forces exerted by all the jacks (6, 66) remains directed at each moment in the mid-plane (P5) of the bearing (12), the bending jacks bearing on the chocks by sliding faces.
IPC 1-7
IPC 8 full level
B21B 29/00 (2006.01); B21B 37/42 (2006.01); B21B 13/00 (2006.01); B21B 31/18 (2006.01); B21B 31/20 (2006.01)
CPC (source: EP US)
B21B 29/00 (2013.01 - EP US); B21B 37/42 (2013.01 - EP US); B21B 13/001 (2013.01 - EP US); B21B 31/18 (2013.01 - EP US); B21B 31/203 (2013.01 - EP US); B21B 2203/36 (2013.01 - EP US); B21B 2267/24 (2013.01 - EP US); B21B 2269/04 (2013.01 - EP US)
Designated contracting state (EPC)
BE DE GB LU
DOCDB simple family (publication)
EP 0238377 A1 19870923; EP 0238377 B1 19900418; DE 3762320 D1 19900523; FR 2594359 A1 19870821; FR 2594359 B1 19880610; US 4773246 A 19880927
DOCDB simple family (application)
EP 87400319 A 19870212; DE 3762320 T 19870212; FR 8602044 A 19860214; US 1441087 A 19870213