Feed bar driving system in transfer press machine

Details Feed bar driving system in transfer press machine Feed bar driving system in transfer press machine

B - Operations, Transporting

65

G

201/73

B65G 45/00 (2006.01) B21D 43/05 (2006.01)

Patent

CA 1251412

ABSTRACT OF THE DISCLOSURE A system for tridimensionally driving feed bars in a transfer press machine. This system includes an advance-return device for causing the fed bars to advance or return, a device for approaching the feed bars to each other or separating the feed bars from each other to thereby clamp or unclamp a work, and a lift-lowering device for raising or lowering the feed bars. Members for holding the feed bars are approached to each other or separated from each other by the rotation of two pinions, these two pinions are rotated by a rack connected to a crankshaft through a connecting mechanism including a lever. The lift-lowering device is constructed such that a pinion in engagement with a spline shaft and a rack in engagement with this pinion to be vertically movable are provided in operational association with the feed bar holding members. The spline shaft is driven by the same driving source as that for the clamp-unclamp device.

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