公开(公告)号：US11117173B2

公开(公告)日：2021-09-14

申请号：US16462807

申请日：2017-11-10

Applicant: SMS GROUP GMBH

Inventor： Stefan Wendt ,  Martin Schmidt ,  Michael Zielenbach

IPC: B21B13/06 ,  B21B31/22 ,  B21B38/00 ,  B21B37/62 ,  B21B31/20

Abstract: An adjusting cylinder quick-action adjustment for a long, rapid stroke movement in an edging stand which includes an edger upright, adjustment system, balancing system and edging roll sets, comprises a piston which acts via edging roll chocks of at least one edging roll for adjustment against the rolling stock. The adjustment of the edging roll can be actuated on each side hydraulically by a fluid. The adjusting cylinder quick-action adjustment is mounted in the edger upright and exerts the force required for the edging process. The adjusting cylinder quick-action adjustment includes on each side of the edging upright at least one double cylinder which has two cylinders coupled to one another and is separately controllable and configured for rapid adjustment and for control adjustment of the edging roll.

公开(公告)号：US11448239B2

公开(公告)日：2022-09-20

申请号：US17425315

申请日：2020-01-23

Applicant: SMS group GmbH

Inventor： Michael Zielenbach ,  Jörn Sohler ,  Peter Horn ,  Martin Schmidt

IPC: B21B35/00 ,  F15B21/08 ,  F15B11/10 ,  G05B19/042

Abstract: A hydraulic control loop controls a hydraulic adjusting cylinder. The cylinder has a cylindrical housing and a displaceable piston therein. The piston divides the housing interior into a first and a second hydraulic chamber. A first hydraulic valve supplies the first hydraulic chamber with hydraulic fluid. A hydraulic pressure of the first hydraulic chamber is adjustable by controlling the first hydraulic valve. A second hydraulic valve supplies the second hydraulic chamber with hydraulic fluid. A hydraulic pressure of the second hydraulic chamber is adjustable by controlling the second hydraulic valve. A control device controls the two hydraulic valves. In a position control state, the second hydraulic valve is controlled by a position control signal dependent on the working position of the piston and the first hydraulic valve is controlled by an adjusted position control signal, that is generated on the basis of the position control signal.