HYDRAULIC SHEARS FOR CUTTING SHEET MATERIALS Russian patent published in 1994 - IPC

FIELD: plastic metal working. SUBSTANCE: shears bed carries table with knife, pressure beam with hydraulic clamps and axle with levers. One arm of each lever is pivoted with rod of power cylinder and second arm is associated through pivots, connecting links and other pivots with knife beam, which is mounted to reciprocate in bed guides and is provided with knife and horizontal strap. Body of each power cylinder is pivoted to knife beam at horizontal strap. Axis of power cylinder is located in vertical plane, which is perpendicular to plane of cutting, and at an angle to line of intersection of these two planes. This angle is determined on the basis of partial compensation of thrust force taken up by bed guides. EFFECT: enlarged capabilities. 2 dwg