PVDC composite film slitting machine for automatically cooling cutters

The invention belongs to the technical field of slitting machinery, and particularly relates to a PVDC composite film slitting machine for automatically cooling cutters. The PVDC composite film slitting machine for automatically cooling the cutters comprises a slitting mechanism, wherein the slitting mechanism is composed of a rotating roller and a driving mechanism for driving the rotating rollerto rotate by a fixed angle; the rotating roller is circumferentially provided with an upper fixing arm and a lower fixing arm which are of the same structure; the included angle between the upper fixing arm and the lower fixing arm is the same as the rotating angle of the rotating roller driven by the driving mechanism; the tail end of the upper fixing arm is provided with a first clamp; the first clamp is rotationally connected with an upper knife rest roller; one end of the upper knife rest roller is rotationally connected with a first rotary motor; the tail end of the lower fixing arm is provided with a second cla