PULLING UNIT OF DRAWING BENCH, METHOD FOR DRAWING METAL BY SUCH UNIT AND DRAWING BENCH

摘要

FIELD: drawing processes and equipment. ^ SUBSTANCE: pulling unit of drawing bench is engaged with drawing die and it includes pulling carriages with drive devices for their separate motion and in addition it includes carriage for preliminary drawing or unit combining carriage for preliminary drawing and pulling carriage. Drive devices include separately controlled and driven by electric current sets of linear electric motors for autonomous motion of respective pulling carriage. Driving efforts of set of electric motors are normalized. Novelty is possibility of simultaneous engagement with drawn metal of two or more pulling carriages. Continuous and intermittent-operation rolling mills are provided with such pulling unit. Intermittent-operation rolling mill has pulling carriage that may be latched in drawing system. ^ EFFECT: possibility for drawing at high speed, flexible control of manufacturing process. ^ 12 cl, 23 dwg