DRAW-BENCH DRIVE Russian patent published in 2008 - IPC B21C1/30 

FIELD: technological processes, transportation.

SUBSTANCE: draw-bench includes drive, drawing stand, and two towing units at both sides of drawing stand, each unit in the form of two chain track devices with loop chains installed on guided and drive sprockets. Braking devices are mounted on guided sprocket shafts. Creation of rear counter-tension or front support allows control over plastic deformation seat, thus enhancing precision of finished tube geometry and admissible metal drawing or deformability amount.

EFFECT: enhanced precision of transverse tube contour geometry, reduced curve radius at profile corners.

2 dwg