Automatic feeding and discharging mechanism for grinding semiconductor grinding materials

The automatic feeding and discharging mechanism comprises a base, the upper side of the base is rotationally connected with a connecting rod, the upper end of the connecting rod is rotationally connected with a containing plate, the connecting rod is arranged in a rectangular shape, a torsional spring is arranged at the rotating position of the lower end of the connecting rod, and a guide block is fixed to the outer side of the front end of the connecting rod. A guide block is arranged on the placement plate, a limiting frame is arranged below the guide block, the limiting frame is connected to the guide column in a sliding mode, the lower side of the limiting frame is rotationally connected with a driving rod, the lower end of the driving rod is rotationally connected with a cam, and the cam is connected with a power rod. When the connecting rod rotates, the driving block drives the rack to move upwards, the spring is compressed, then the rack drives the gear ring to rotate, threads on the inner side of the