Water gap cutting machine for injection molded part

The utility model relates to the technical field of water gap cutting machines, in particular to an injection molding part water gap cutting machine which comprises a water gap cutting mechanism and a material collecting mechanism, and the material collecting mechanism is installed on the water gap cutting mechanism. The water gap cutting mechanism comprises a base, a support, a top seat, a hydraulic cylinder, a hydraulic rod and an ultrasonic welding head, the support is fixedly connected to the base, the top seat is fixedly connected to one side of the support, and the hydraulic cylinder is installed on the top seat. The defects in the prior art are overcome, the second motor is started to drive the rotating rod to rotate, so that the two sliding blocks move relatively, then the two sliding plates are driven to move relatively, the sliding plates move to push cut injection molding parts to the two sides of the interior of the U-shaped cover, the cut injection molding parts are conveniently collected by the