Shot blasting machinery

Claim 1

A shot blasting machine comprising; (1) a blast cabinet module into which a workpiece to be shot blasted can be conveyed; and (2) a shot blasting module directly connected to the blast cabinet module in communicating relationship therewith, the shot blasting module including: (A) a casing open to the interior of the blast cabinet module, (B) a swing-out door pivoted on the casing and openable to permit access to the interior thereof, (C) an abrasive throwing wheel assembly mounted on the internal surface of the swing-out door and including a rotatable throwing wheel for impelling abrasive into the blast cabinet module, (D) a motor drivingly coupled to the throwing wheel and mounted on the external surface of the swing-out door, (E) means for delivering spent abrasive and contaminants from the blast cabinet module into a lower region of the shot blasting module, (F) an abrasive/contaminant separator in an upper region of the shot blasting module, (G) an abrasive storage hopper intermediate the upper and lower regions of the shot blasting module for receiving clean abrasive from the separator, (H) a two stage vertical conveyor means adapted simultaneously to direct the spent abrasive and contaminants from the lower region of the shot blasting module into the separator and to deliver clean abrasive from the separator into the storage hopper, (I) a delivery pipe extending from an outlet of the storage hopper to the throwing wheel assembly, (J) a valve at the storage hopper outlet for controlling flow of clean abrasive from the storage hopper into the delivery pipe, and (K) a feed spout forming part of the abrasive throwing wheel assembly and aligned with the outlet of the delivery pipe when the swing-out door is closed to receive clean abrasive from the delivery pipe and direct it into the throwing wheel.