Automatic size mixer

The utility model discloses an automatic size mixing machine, which belongs to the technical field of size mixing machines and comprises a machine base and a top cover, a machine barrel is arranged in the machine base, and the top cover movably abuts against the top of the machine barrel. A cylinder is fixedly mounted at the top of the machine barrel, a main shaft is rotatably connected to the top of the cylinder, a rotating disc fixedly sleeves the outer side of the main shaft, a plurality of stirring shafts are rotatably connected to the top of the rotating disc, stirring blades are fixedly mounted on the outer sides of the stirring shafts, and pinions are fixedly connected to the top ends of the outer sides of the stirring shafts; and an inner gear ring is fixedly mounted in the cylinder, and the multiple pinions are engaged with the inner gear ring. By controlling the stirring blades and the top cover to automatically ascend and descend, feeding and discharging are facilitated, the stirring blades are dri