SCREWD0WN MECHANISM OF ROLLING STAND Russian patent published in 2002 - IPC

FIELD: rolled stock production, possibly rolling steel sheets and bars, non-ferrous and non-metallic materials. SUBSTANCE: screw-down mechanism having hydraulic cylinder arranged between housing of rolling stand and chock of backup roll includes rod made of permanent, for example barium-oxide magnet embraced by electromagnetic coil connected with direct current source, at least two windings mounted in chocks of backup rolls placed coaxially one relative to another in such a way that one winding is connected with direct current source and another - with capacitor gang. EFFECT: improved design of screw-down mechanism, increased rate of roll motion, high accuracy of rolling process. 1 dwg