| 摘要 |
PROBLEM TO BE SOLVED: To provide a bar cutter having various options of cutting length, which can perform cutting at an optional timing or cutting while moving a movable cutting edge at high speed. SOLUTION: The bar cutter includes a fixed cutting edge 1 and a movable cutting edge 2 for cutting a bar S; a reciprocating motion mechanism 12 which causes a slider 3 to generate upward/downward motion to be given to the movable cutting edge 2; an intermittent drive mechanism which transmits the upward/downward motion of the slider to the movable cutting edge 2; a feed means 21 which feed the bar S to be cut; and a control means which controls the motion of the intermittent drive mechanism 23 based on the feed state of the bar S. The intermittent drive mechanism 23 includes a rocking head 5 which presses the movable edge 2 at the lower end of the slider 3, and the control means selectively switches, based on the feed state of the bar S, the attitude of the rocking head 5 between a valid position to press the edge 2 and an invalid position not to press the edge 2. COPYRIGHT: (C)2010,JPO&INPIT |
