SHEET MATERIAL CRUSHING DEVICE Russian patent published in 1994 - IPC

FIELD: mechanical engineering. SUBSTANCE: device cheeks are fastened to a bed by their lower part and have upper working and lower nonworking zones parted by a flap with an unloading port horizontally mounted in guides of the cheeks. The flap is connected to the free end of a lever-pusher. The movable cheek drive is made in the form of a hydraulic cylinder with a three-position reversible spool which in the middle position communicates the working cavities of the cylinder with drainage. EFFECT: improved structure. 1 dwg