This invention belongs to the field of
casting technology, and particularly relates to a compaction structure under
air volume zone control. It includes a base, a box on the upper side of the base, a sand inlet on one side of the box, a sand box connecting block on the sand inlet, a sand box connected to the sand box connecting block, a first
sintering mesh hinged to the lower side of the box, multiple second
sintering meshes around the inside of the box, a first
airflow channel on the outer side of the box, and a two-control valve on one side of the box. The two-control valve controls the air intake below the first
sintering mesh and the air intake within the first
airflow channel. This invention enables the vertical upward injection of
molding sand and the supply of air to the periphery of the box through the two-control valve, facilitating
molding sand ejection and cleaning. A rotating plate, in conjunction with a first rotating shaft, lifts the
molding sand on the first sintering mesh and moves it to one side, allowing the sand to be vertically blown up by gas. An elliptical column rotates and contacts the lower side of the first sintering mesh, causing the first sintering mesh to move up and down and vibrate, facilitating the cleaning of the molding sand.