Patent ID: 6112569
Filing Date: 2000-09-05
Classification: B21B

Abstract:
A bending device which enables both positive and negative bending of work rolls simultaneously in four-high and multi-roll stands, the work rolls are rotatably supported on bearing chocks connected to a roll stand having windows, and support rolls, the bending device comprising:first bending blocks slidably arranged vertically in the windows of the roll stand so as to act bilaterally on the bearing chocks of each pair of the work rolls;first piston-cylinder means for moving vertically opposite of the first bending blocks of each pair of the work rolls toward and away from each other;a second vertically movable bending block respectively arranged to act bilaterally on each bearing chock and so as to be movable independently of the first bending blocks; andsecond piston-cylinder means supportable on the roll stand for moving each second bending block.