Pouring device and pouring method

The invention relates to the technical field of workpiece pouring, in particular to a pouring device and a pouring method.The pouring device comprises an upper mold, a lower mold, a base and a separation assembly, and the separation assembly comprises two first air cylinders, two second air cylinders, two third air cylinders, two damping knocking units, two metal knocking blocks, a pipeline and a plug body; the upper mold and the lower mold are both provided with semicircular grooves, the first air cylinder stretches out to cover the upper mold for pouring, if a poured workpiece has a weak connecting point, the second air cylinder stretches out to drive the damping knocking unit to knock the upper mold and the lower mold, damping and buffering can be achieved, the weak workpiece is prevented from being damaged, and if the workpiece is stable in structure, the third air cylinder stretches out to knock the upper mold and the lower mold. The metal knocking block is used for knocking to loosen the workpiece, so t