Abstract: An input shaft of a press feed is rotated at a preselected speed and is drivingly connected to a cam that rotates the input shaft. Continuous rotation of the cam is converted to oscillating rotational movement of a cam follower through a preselected angle of rotation. The cam follower is nonrotatably connected to an output shaft that is connected by an adjustable drive link and gear arrangement to a driven feed roll. Oscillating rotational movement of the output shaft is transmitted to the driven feed roll to advance the driven feed roll in contact with the strip material through a preselected degree of rotation corresponding to a preselected feed length of the strip material to the press. The end of the drive link adjacent to the output shaft is movable relative to the output shaft.

Abstract: An input shaft of a press feed is rotated at a preselected speed and is drivingly connected to a cam that rotates with the input shaft. Continuous rotation of the cam is converted to oscillating rotational movement of a cam follower through a preselected angle of rotation. The cam follower is nonrotatably connected to an output shaft that is connected by an adjustable linkage mechanism through a pair of meshing gears to a driven feed roll. The oscillating rotational movement of the output shaft is transmitted to the driven feed roll to advance the driven feed roll in contact with stock material through a preselected degree of rotation corresponding to a preselected feed length of the stock material to the press. 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.

Abstract: An input shaft is drivingly connected to a crankshaft of a punch press for rotation at a preselected speed. A geared cam drive drivingly connects the input shaft to a driven feed roll so that continuous rotation of the input shaft is converted to intermittent rotation of the feed roll. The intermittent rotation of the feed roll is timed with the punching operation so that the feed roll intermittently advances a preselected length of stock material to the punch press after each punching operation. Bevel gears drivingly connect the input shaft to a pull roll that rotates to continuously unreel stock material from a coil. During the punching operation, rotation of the feed roll is interrupted forming a loop in the stock material between the pull roll and the feed roll.

Abstract: An idler roller assembly is provided which permits angular adjustment of the idler roller relative to the housing of the punch press feed so that accurate tracking of the feed stock may be accomplished. The idler roller rotates within a frame that is supported by trunions within the housing of the feed. The trunions permit pivoting of the frame to move the idler roller toward and away from the driven roller of the feed. An eccentric adjustment is provided between one of the trunions and the housing of the feed so that minute angular adjustments may be made to the idler roller.

Abstract: A self-contained unit to be attached to a power punch press to provide a feed for stock being fed to the press. The unit contains a direct drive from the punch press crankshaft to feed rolls which are located adjacent to the table of the press. A non-slip, positive, drive is provided from the crankshaft of the punch press to an index drive which receives continuous, uniform rotary motion and converts it into non-continuous, incremental movement of the index drive output shaft. A positive, non-slip drive is provided between the index drive output shaft and the power driven feed roll. The feed roll unit also contains a compressed air-operated cylinder arrangement to release the idler feed roll at a predetermined period during the punch press cycle so that the stock being fed to the press is free from the feed rolls during the pressing portion of the punch press operating cycle.