B - Operations – Transporting – 65 – H
Patent
B - Operations, Transporting
65
H
164/90
B65H 20/18 (2006.01)
Patent
CA 1288683
ABSTRACT A cam shaft of a press feed having a first pair of cam surfaces is rotated at a preselected speed depending upon the speed of the press. Continuous rotation of the cam surfaces is converted to intermittent oscillating rotational movement of an output shaft through a preselected angle of rotation by a pair of cam followers. The cam followers are nonrotatably connected to an output shaft that is connected by an adjustable linkage mechanism to a slide block. The intermittent oscillating rotational movement of the output shaft is transmitted to the slide block to advance the slide block containing stock material such as a bar or wire through a preselected distance corresponding to a preselected feed length. The feed length is adjustable by changing the length of travel of the linkage mechanism with respect to the degree of rotation of the output shaft. The slide block moves horizontally through a preselected distance to feed a prsselected amount of material, remains stationary during a first dwell period and releases the material, moves horizontally in the opposite direction back to the initial feed position, remains stationary for a second dwell period and engages the material for another feed cycle. The intermittent feeding operation of the slide block is coordinated with the operations of releasing the slide block and clamping the stock material with a separate material clamp for holding the material while it is released from the slide block.
553602
Borden Ladner Gervais Llp
Gentile Joseph P.
LandOfFree
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