Crawler-type shot blasting machine for precision casting production

The utility model relates to the technical field of shot blasting machines, in particular to a crawler-type shot blasting machine for precision casting production, which comprises a box body and a feeding pipe, the feeding pipe is fixedly connected above the box body, a support is fixedly connected on the surface of the box body, a pressing mechanism is arranged in the support, a material distributing mechanism is arranged in the box body, and the material distributing mechanism is fixedly connected with the box body. The surface of the box body is fixedly connected with a motor, and an output shaft of the motor is fixedly connected with a first conveying roller. Through cooperation of a worm, a handle, a worm gear, a screw, a threaded cylinder, a supporting rod and a pressing wheel, the handle drives the worm to rotate, the worm drives the worm gear to rotate, the worm drives the screw to rotate, the screw drives the threaded cylinder to move, the threaded cylinder drives the supporting rod to move, the supp