| 摘要 |
PURPOSE:To improve the accuracy of the work holding position, to eliminate chattering and to stably transfer a work by changing the position of a feeding bar by the dimension of an objective work. CONSTITUTION:In case of a work being small, the before and behind feed bars are set at the width narrow position by electrifying the coil (a) of switching valves 22A, 22B. In case of the work being large, the coil (b) of the switching valves 22A, 22B is electrified and the feed bars are set to the width wide position on the contrary. In case of the asymmetrical item of being short at the front and long at the rear, it can be coped with by setting the feed bar at narrow width position and wide width position respectively by electrifying the coil (b) of the switch valve 22A and the coil (a) of the switch valve 22B. |
