GEAR CUTTING LONG-LENGTH ARTICLES MOVING LONGITUDINALLY Russian patent published in 1997 - IPC

FIELD: mills for continuous hot-rolling of bars, rods, etc. SUBSTANCE: gear cutting long-length articles moving longitudinally along movement line has pair of screw blades of constant diameter mounted for rotation about axes parallel to movement line. Direction of rotation of blades and distance between their proper axes are such that parts of blades interact along cutting line that is parallel to movement line. Blades rotate in opposite directions so that their interacting parts move in repeating manner along cutting line in direction of movement of article. Rotary gear departs article from movement line at angle to cutting line for cutting with the use of interacting parts of cutting blades. EFFECT: increased reliability and efficiency of gear. 8 cl, 12 dwg