ROLLING STAND OF DOUBLE-STRAND COLD PIPE ROLLING MILL Russian patent published in 1997 - IPC

FIELD: rolled product manufacture. SUBSTANCE: rolling stand has movable casing within which are positioned supporting planks, racks pivotally fastened to planks and movable cassette for receiving four rolls positioned in common plane and contacting one with another through their barrels. Outer rolls are in contact with supporting planks. Each outer roll has two drive gears. Each intermediate roll has two synchronizing gears. Cassette with four rolls has drive providing reciprocating motion from lever having two pivot hinges. Stand casing is coupled to lever through tie-rod. EFFECT: increased efficiency, simplified construction and improved quality of rolled products. 6 dwg