Material stacking device

The utility model discloses a stacking device, which comprises a main board, a plurality of auxiliary boards and a plurality of stacking devices, the lower conveying units are at least one pair, are mounted on two sides of the main plate and are used for conveying bagged raw materials during stacking; the stacking unit is installed on one side of the main plate and used for lifting and pushing thebagged raw materials to move when the bagged raw materials are stacked, the stacking unit comprises a plurality of lower supporting mechanisms arranged on one side of the main plate, lifting assemblies are installed at the upper ends of the lower supporting mechanisms, containing assemblies are installed on the lifting assemblies, and the containing assemblies are provided with pushing-out assemblies; wherein the lower supporting mechanism is used for adjusting and supporting the main plate, the lifting assembly is used for driving the multi-bag bagged raw materials to ascend and descend, theplacing assembly is used