Inner wall cutting process for polyethylene winding pipe

The invention relates to the technical field of pipe processing equipment, in particular to an inner wall cutting process for polyethylene winding pipes, which is characterized in that an adjustable pipe bracket and a movable plate are matched with L-shaped clamping plates and guide seats in a second clamping cover and a first clamping cover, so that the polyethylene winding pipes with different sizes can be positioned and clamped in the middle; through rotation of the lead screw, the cutting knife is driven to complete circumferential rotation in the advancing process, the cutting operation of the inner wall of the polyethylene winding pipe is effectively implemented, reciprocating motion of the cutting knife is achieved, and therefore multiple times of cutting treatment can be completed in the one-time pipe penetrating process, the reciprocating penetrating frequency of the movable shell in the pipeline is greatly reduced, and the machining efficiency is improved. The cutting efficiency is further improved;