Rotating-shaft-free sand box turnover device

The rotating-shaft-free sand box turnover device comprises two fixing frames, a sand leaking hopper is installed between the two fixing frames and below the fixing frames, two bearing seats are installed above the fixing frames, rotating bearings are installed in the bearing seats, a rotating shaft is installed between the rotating bearings, and a turnover plate is fixedly installed above the rotating shaft. By means of the characteristic that the positions and the sizes of the sand box wheels are the same, the turning plate is fixed on the support in a rotating mode through the turning shaft, the turning angle is large, molding sand in the sand box can be completely poured out, the sand box wheels are not prone to falling off, the sand box wheels are not prone to falling off, and the sand box wheels are not prone to falling off. The sand box overturning device solves the overturning problem of sand boxes with different sizes, is suitable for the sand boxes with various sizes, is large in overturning angle, d