Scrap removal device for rotary punch - has knock-out lever one end of which moves restricted amount to eject scrap

摘要

The scrap knockout device for a rotary punch has a knife cylinder (35) with punch blades (37) on its outer surface. An anvil cylinder (34) having a layer against which the blades are forced to punch out a work-piece fed between the cylinders has a scrap knockout lever (42) which engages with a cut or slot formed in a punch blade. The lever is restricted in its upwards and downwards motion. One end of the lever is a free end arranged so that outward movement of the end causes removal of the scrap pieces formed by punching.