Energy-saving mechanical automatic grinding device

The utility model discloses an energy-saving mechanical automatic grinding device which comprises a grinding device body, a grinding cavity and a containing cavity located below the grinding cavity are formed in the grinding device body, the inner wall of the bottom of the grinding cavity is of a conical structure, and a discharging port is formed in the center of the inner wall of the bottom of the grinding cavity. A material receiving box located in the containing cavity is arranged below the discharging port. According to the energy-saving mechanical automatic grinding device, the two effects of rotary grinding of the grinding head and left-right moving filtering of the filtering plate can be achieved through one double-shaft-extension motor, the function of grinding raw materials is achieved, the phenomenon that ground powder is accumulated on the filtering plate is prevented, and finally the grinding effect is good. The problems that in the prior art, ground powder can fall off only after being repeatedl