The utility model relates to the field of
casting hole sanding devices, in particular to a
casting hole sanding device which comprises a shell. A movable door is installed on the side face of the shell, high-pressure
impact assemblies are arranged on the side wall, opposite to the movable door, of the shell, the two side walls adjacent to the movable door and the top of the shell, a separation
assembly is arranged on the side wall of the shell in a penetrating mode, and the output end of the pressure pump communicates with the multiple sets of high-pressure
impact assemblies installed on the shell. Sand in a
casting hole is impacted and removed through high-pressure
water flow, a
spiral blade can drive an inner hollow shaft to rotate in a hollow
pipe port under driving of the
water flow, and the spraying angle of a spraying head on a spherical shell can be adjusted when the spherical shell rotates, so that spraying
impact is conducted on the surface of a casting from multiple angles, and the sanding effect is improved; the
water flow permeates downwards to be stored in the
precipitation bin for
precipitation, the water-permeable belt conveys the
molding sand intercepted on the water-permeable belt out of the shell, and the
molding sand is collected into the collection bin and then remains on the filter plate, so that the
molding sand is reused after being dried.