Auxiliary blanking device for material preparation hopper of sand washer

The utility model discloses an auxiliary blanking device for a material preparation hopper of a sand washer, which belongs to the technical field of blanking devices of sand washers, and comprises a supporting table, a conveying device is arranged on the side surface of the supporting table, a blanking box is fixedly mounted at the top of the supporting table, an insertion port is formed in the side surface of the blanking box, an insertion plate is inserted into the insertion port, and a blanking hole is formed in the top of the blanking box. A push plate is fixedly installed on the side face of the inserting plate, a push-pull handle is fixedly installed at the end, away from the push plate, of the inserting plate, a discharging opening is formed in the bottom of the discharging box, a positioning hole is formed in the bottom of the discharging opening, a first magnet is fixedly installed in the positioning hole, and a movable groove is formed in the bottom of the discharging opening; the blanking device ha