HIGH-SPEED SHEARS Russian patent published in 2004 - IPC

FIELD: transversal cutting of bands. SUBSTANCE: proposed shears have pair of drums located opposite each other; one drum is provided with knife and other drum is provided with movable stop or zone of side surface acting as stop. Provision is made for adjustment of drums relative to each other; drums are provided with drive mechanism for acceleration to circumferential velocity corresponding to rolled band feed rate. At least one drum is provided with adjusting unit controllable separately and knife projects beyond cutting circle relative to movable stop and is supported by at least one spring-loaded unit at preset resetting force. Adjusting unit is made in form of balance beam whose center of turn lies on drum. EFFECT: improved quality and precision of cutting. 6 cl, 7 dwg