The present utility model provides a plasticizing and injection device for a blow molding machine, comprising a motor, a storage cylinder, an electromagnetic heater, a feeding screw and a reducer. One side of the storage cylinder is provided with a feed inlet, the other side is provided with a discharge outlet, the feed inlet is connected with a filter hopper, and a magnetic filtering mechanism and an electromagnetic lifting mechanism for controlling the intermittent lifting of the magnetic filtering mechanism are arranged inside the filter hopper. The intermittent operation of the electromagnetic lifting mechanism drives the magnetic filtering mechanism to be continuously lifted and dropped, and the raw materials on the surface of the magnetic filtering mechanism are flattened during the up-and-down movement to avoid raw material accumulation. Meanwhile, the magnetic filtering mechanism has magnetism, allowing plastic raw materials to pass through, while metal objects or plastic raw materials with a volume exceeding the allowable value of the equipment will be retained on the surface of the magnetic filtering mechanism to prevent the feeding screw from being stuck. It has a simple structure, and is safe and reliable.

Country Code: CN

Application Number: CN202121463765.0