Diamond micro-powder mixing device

The utility model relates to a diamond micro-powder mixing device. The diamond micro-powder mixing device comprises a machine base, a material tank, a box body, a speed reducer and a motor, wherein a rotating arm is arranged at the top of the machine base, a speed reducer support is arranged on the rotating arm, a shaft coupling connected with the speed reducer is arranged on the box body, an input shaft is arranged in the shaft coupling, an upper positioning plate and a lower positioning plate are arranged in the box body, bearings are arranged on the upper and the lower positioning plates, output shafts are arranged in the bearings, a first-stage gear and a key are arranged on the input shaft, the first-stage gear is fixed with the input shaft through the key, second-stage gears which are mutually meshed with the first-stage gear are arranged on the output shafts, and fins which are mutually overlapped are arranged on the input shaft and the output shafts. A stirring mechanism provided by the utility model adopts multi-shaft stirring and mixing, the input shaft drives the output shafts to rotate through the gears, and the fins on the input shaft and the output shafts rotate in an overlapped manner, so that materials in the material tank realize full contact, uniform mixing is realized in large places, full mixing is realized in small places, mixing dead angles in the material tank are avoided, and the mixing precision is improved.