Cutting apparatus for extruded materials

Apparatus for repeatedly cutting extruded rubber and plastic material at preselected locations along a length thereof comprising, frame means, drive shaft means mounted on said frame means, drive means effecting a selected speed of rotation of said drive shaft means, feed roll means intermittently driven by said drive shaft means for controllably incrementally advancing the extruded material, cutting means driven by said drive shaft means for repeatedly cutting the extruded material advanced by said feed roll means at the preselected locations, and indexing means having clutch means intermittently connecting said drive shaft means and said feed roll means and having indexing crank means interposed between said drive shaft means and said clutch means, said indexing crank means includes a crank shaft attached to said drive shaft means, a crank wheel affixed to the crank shaft, a crank pivot block attached to said crank wheel, a crank pin extending from said crank pivot block, and a crank rod attached to said crank pin and movable longitudinally in pillow block means attached to the input shaft of said clutch means for imparting oscillating motion to said pillow block means.