Method and device for changing pairs of working rolls and/or...

Details Method and device for changing pairs of working rolls and/or... Method and device for changing pairs of working rolls and/or...

2007-01-23

2007-01-23

Tolan, Ed (Department: 3725)

Metal deforming

By use of roller or roller-like tool-element

With carrier for roller-couple or tool-couple

C072S238000

Reexamination Certificate

active

10509849

ABSTRACT:
A device for changing pairs of work rolls and/or pairs of backup rolls of roll stands, wherein the rolls are each supported in chocks and are movable out or in by a lower back up roll supported on a track and wheels. The work rolls on the drive side of the roll stand can be coupled to a hydraulic piston-cylinder actuator that is dimensioned in is stroke length for the removal or installation distance and can be uncoupled when it has been withdrawn by the required distance. A roll changing frame can be coupled to the actuator and, when the upper backup roll and the roll changing frame are supported on the lower backup roll, the pair of backup rolls can be moved out or back in. The actuator is coupled to a pusher with connecting arms aligned with ends of the rolls. The actuator is arranged on the drive side of the roll stand and is coupled to the pusher through a piston rod.

REFERENCES:
patent: 3583195 (1971-06-01), Sherwood
patent: 6763565 (2004-07-01), Mukaigawa et al.
patent: 2002/0078728 (2002-06-01), Mukaigawa et al.
patent: 3123933 (1982-02-01), None
patent: 1136143 (2001-09-01), None
Patent Abstracts of Japan, vol. 004, No. 072 (M-013), May 27, 1980 & JP 55 036063 A (Hitachi Ltd) , Mar. 13. 1980.

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