NAIL-SPIKE MANUFACTURE APPARATUS Russian patent published in 1997 - IPC

FIELD: hardware. SUBSTANCE: apparatus has rolling stand with frame and roll unit, billet retaining unit, upsetting unit, product sharpening and separating mechanism. Mentioned units and sharpening and separating mechanism are positioned in gaps between rolls. Roll unit has three rolls, which provide rotation of adjacent rolls in opposite directions one relative to the other. Billet retaining unit is made in the form of diametrical slot extending through central roll. Upsetting unit has stamps positioned in central slot and counterstamps arranged in opposed relation to stamps in slots of peripheral rolls. Product sharpening and separating mechanism has strikers positioned in diametrical slot of central roll perpendicular to slot in billet retaining unit and provided with drives. Product withdrawal mechanism has forked extractor positioned on frame and provided with drive. Upsetting unit has stamps and counterstamps of finishing passes. Striker drive has rollers secured to them so as to roll over bricks positioned on peripheral rolls. Product sharpening and separating mechanism has billet tension unit with grips resting with their inclined surfaces on strikers and slides connected with strikers through tie-rods. EFFECT: increased efficiency and wider operational capabilities. 6 cl, 9 dwg