Spraying device for automobile hub production based on water circulation

The invention relates to the technical field of hub machining, in particular to a spraying device for automobile hub production based on water circulation. According to the technical scheme, the pesticide spraying device comprises a fixed bottom plate, a spraying box and a spraying pipe, the spraying box is fixedly installed at the top of the fixed bottom plate, the spraying pipe is fixedly installed at the top of the spraying box, a spraying frame is fixedly installed at the bottom of the spraying pipe, rotary spraying heads are installed at the bottom of the spraying frame at equal intervals, and a pesticide box is installed on one side of the spraying box; a circulating water tank is fixedly mounted on one side of the medicament tank, a filter tank is fixedly mounted on one side of the bottom of the fixed bottom plate, and a water filter element is fixedly mounted in the filter tank. Water liquid in the circulating water tank can be pumped and conveyed to the spraying pipe through power-on operation of the