Material returning overturning device of container corner piece annealing furnace

The utility model relates to a material returning overturning device of a container corner piece annealing furnace. The overturning device comprises a material returning conveying device and an overturning device body, wherein the material returning conveying device comprises two rows of conveying supports, a chain arranged between the conveying supports and a motor in transmission connection with of the chain, a plurality of rolling wheels are arranged at the upper ends of the conveying supports, guide rails are oppositely arranged on the inner sides of the conveying supports, a slider is arranged between the conveying supports, the two sides of the slider are connected with the guide rails in a sliding mode, and a conveying disk is placed on the slider; the overturning device body comprises a receiving support in butt joint with the conveying supports, an overturning table for supporting the receiving support, an overturning shaft, an overturning arm, a base and a cylinder, rolling wheels are arranged at the upper end of the receiving support, a stop dog is arranged at the end, far away from the conveying supports, of the receiving support, and a proximity switch in signal connection with the cylinder is arranged on the receiving support. The overturning device is simple and reasonable in structure, convenient to operate and high in safety performance.