Feed reflux device for defoaming coating

The utility model discloses a feed backflow device for coating defoaming, which comprises a fixed plate and a fixed hole, a support shell is mounted at the top of the fixed plate, a timing reversing switch is mounted on the front side of the support shell, a baffle is mounted in the support shell, a feed pump is mounted in the support shell through a rivet belt, and the fixed hole is formed in the fixed plate. A material returning pump is installed in the supporting shell through a rivet belt, and four sets of fixing holes are formed in the fixing plate in a penetrating mode. The temperature sensor and the brake switch are installed through the supporting shell, the temperature sensor monitors the temperature in the supporting shell after being powered on, and when the temperature in the supporting shell is too high due to overload work of the feeding pump and the material returning pump, an electric signal is transmitted into the brake switch, and the brake switch is started to brake the feeding pump and the