Waste plastic pipe crushing machine

The invention provides a waste plastic pipe crushing machine. A mechanical arm is fixed on the top of a crushing box; a feeding tube is disposed below a clamping head of the mechanical arm; a plurality of blanking holes are formed in a separation board in longitudinal direction; a cutter frame roller is disposed in a large sheet crushing chamber and includes a center shaft and fixing rings, wherein the fixing rings are arranged outside the center shaft through thread connection; protruding teeth are arranged on the end portion of one end of each fixing ring; a cutting disc sleeves the center shaft of the cutter frame roller and is clamped between the fixing rings and is provided with clamping holes that are corresponding to the protruding teeth on the fixing rings; the cutting disc includes a larger cutting disc and a smaller cutting disc; inclined groove cutter edges are formed on the outer ring surface of the cutting disc; a magnet is disposed on the bottom of the separation board inthe crushing box; a square-bar cutter is disposed under the magnet in parallel; a discharge roller is disposed in a small chip crushing chamber in the crushing box; two ends of the discharge roller are provided with openings and are stretched out from the crushing box; discharge holes are formed on the outer side surface of the discharge roller. The waste plastic pipe crushing machine is more safe and high-effective and can reduce labor intensity.