Spraying tank with material accumulation prevention function

The spraying tank with the material accumulation prevention function comprises a spraying tank body, an oil cleaning cover plate is arranged at the top of the spraying tank body, mounting vertical plates are symmetrically fixed to the two sides of the bottom of the oil cleaning cover plate, a two-way lead screw is horizontally arranged between the two mounting vertical plates, and a rotating connecting rod is fixed to one side of the two-way lead screw. One end of the rotating connecting rod rotationally penetrates through the side wall of the mounting vertical plate and is sleeved with a driven rotating wheel, a servo motor is mounted at the top of the outer side of the oil removing cover plate, the output end of the servo motor is sleeved with a driving rotating wheel through a coupler, and the driving rotating wheel is mutually sleeved with the driven rotating wheel through a connecting rotating belt; according to the device, the situation that all oil stains are discharged through a liquid discharging pip