FOUR-ROLL SHEET BENDING MACHINE Russian patent published in 2004 - IPC

FIELD: plastic metal working, namely bending sheet material by drawing it between rolls.

SUBSTANCE: machine includes lateral rolls mounted in housing in paired rotary levers with separate rotation axles; mechanism for moving said rolls, upper drive roll, movable lower roll mounted on levers. Lower roll is mounted with possibility of motion in horizontal plane and it is joined with rotary levers of lateral rolls through pins rigidly secured to its levers and arranged in grooves of rotary levers of lateral rolls.

EFFECT: enhanced quality of articles, enlarged range of products by thickness of sheet metal, simplified design of machine.

3 dwg