WORKING LINE OF TUBE COLD ROLLING MILL Russian patent published in 2006 - IPC B21B21/00 

FIELD: tube rolling process; cold rolling of super-thin-walled tubes made from difficultly-deformable materials.

SUBSTANCE: proposed working line of tube cold rolling mill includes working stand with movable load-bearing bed frame equipped with rails and cassette whose movable body is provided with deforming tool; working line is also provided with drive for motion of cassette and leverage drive for motion of load-bearing bed frame with connecting rod links and lever on hinged support. Cassette motion drive is made in form of planetary crank unit at rectilinear reciprocating motion of crank in vertical plane running through line of rolling and counter-weights for equalizing dynamic loads arising in the course of motion of working stand; cassette body is provided with tail-piece with bearing of cassette motion drive crank. Tail-piece of cassette body is connected with lever of load-bearing bed frame motion drive by means of connecting rod link; lever support is mounted on cassette motion drive body on side opposite to zone of motion of working stand. Moment of inertia of counter-weights of cassette motion drive is equal to total moment of inertia of cassette, bed frame and bed frame motion leverage.

EFFECT: increased productivity of rolling mill due to increased speed of movable parts and balancing of dynamic loads in working stand motion drive.

1 dwg