The utility model discloses a melt conveying device for aluminum
alloy semi-
solid pressure casting, which comprises a
metal melt storage device, a base and a support pillar, the
metal melt storage device comprises a holding furnace and a
crucible, the upper surface of the
metal melt storage device is provided with a feed port, the lower surface of the metal melt storage device is provided with a
discharge port, and the support pillar is arranged on the base. The bottom end of the discharging opening is connected with a
screw pump, the
screw pump comprises a feeding body, a motor, a gear, a driving shaft, a first driven shaft, a second driven shaft, a pump body, a pull rod and a discharging body, spiral blades are arranged on the surfaces of the driving shaft, the first driven shaft and the second driven shaft and are meshed with one another, and the left end of the
screw pump is connected with a conveying
pipe. And a
discharge hole is formed in the other end of the conveying
pipe. By means of the structure, the temperature of
molten metal in the conveying process can be kept, solidification is prevented, and the flow speed and conveying pressure of the
molten metal can be effectively controlled.