Diluting device for coating processing

The utility model relates to the technical field of coating processing, in particular to a diluting device for coating processing, which comprises a machine body, a stirring shaft connected to the driving end of the machine body and a dispersing disc connected to the bottom end of the stirring shaft, a barrel is placed on the inner side of the machine body, and a lantern ring is slidably sleeved on the outer wall of the stirring shaft. A guide piece and a locking piece are arranged between the lantern ring and the stirring shaft, a square shell is fixedly connected to the outer wall of the lantern ring, a screw rod is rotationally connected to one side face of the interior of the square shell, and the screw rod movably penetrates through the other side face of the interior of the square shell; the paint dispersion machine has the beneficial effects that the paint dispersion machine can simultaneously and uniformly stir a diluent and paint at the central position and the edge position in a large-caliber steel