ELONGATE MATERIAL CUTTING APPARATUS Russian patent published in 1995 - IPC

FIELD: mechanical engineering. SUBSTANCE: apparatus has frame 1 carrying feeding mechanism with rolls 3,4, cutting mechanism with knives 5,6 and drive. Change-over mechanism positioned on drive shaft is adapted for alternate connection of drive with feeding mechanism and cutting mechanism. Change-over mechanism has two ratchets with tooth having opposite direction of inner thread. Ratchets are positioned on drive in axially aligned relation for rotation one relative to the other. Change-over mechanism has stepped-diameter cam with catches oriented in opposite directions in cam steps. One ratchet is connected with tension roll 3 of feeding mechanism. Other ratchet is coupled through eccentric with guide 22 of movable knife 6 of cutting mechanism. Cutting mechanism operates in the process of reversal of drive 2 during one revolution of gear 16. EFFECT: increased efficiency and wider operational capabilities. 2 cl, 7 dwg