Sand supplementing and pressing device

The utility model discloses a sand supplementing and pressing device which comprises a sand supplementing mechanism, a sand pressing mechanism and a sliding mechanism, the sand supplementing mechanism comprises a shell, a rotating disc and a rotation driving device, the shell is provided with a first feeding port and a first discharging port, the first feeding port is located above the first discharging port, the first discharging port is located above the rotating disc, the rotating disc is provided with a protruding strip, and the rotating disc is provided with a sliding block. The sand pressing mechanism comprises a lifting assembly and a pressing plate, the lifting assembly is used for driving the pressing plate to do lifting motion so as to press the molding sand in the sand box, the sliding mechanism comprises a supporting table, a sliding block and a sliding rail, the supporting table is used for supporting the sand box, and the sliding block is used for supporting the supporting table. The supporting