Material recovery device of injection molding machine

The utility model relates to a material recovery device of an injection molding machine. The device comprises a base and a crushing cylinder, the crushing cylinder is connected with the base; the crushing cylinder is connected with a crushing assembly; the crushing assembly comprises a crushing motor, a crushing shaft and a cutter assembly; the crushing shaft is connected with a crushing motor; the cutter assembly is connected with the smashing shaft in a matched mode. The cutter assembly comprises a long crushing cutter and a short crushing cutter; the long crushing cutters and the short crushing cutters are respectively and detachably connected with the crushing shaft; longitudinal blades are arranged on the upper surfaces and the lower surfaces of the long smashing cutters and the shortsmashing cutters respectively, a spraying assembly is further arranged on the smashing cylinder, waste can be smashed in all directions through the design of the long smashing cutters, the short smashing cutters and the long