Automatic feeding device of chemical mixer

The utility model discloses an automatic feeding device of a chemical mixer, which belongs to the technical field of chemical mixers and comprises a feeding box and a feeding mechanism mounted at the top of the feeding box. The feeding mechanism comprises four storage boxes which are distributed and installed at the top of the feeding box in a rectangular shape, a feeding pipe provided with an electromagnetic valve is inserted into the bottom of the feeding box, a linear reciprocating motor is installed at the bottom of each storage box, the output end of each linear reciprocating motor is connected with a connecting plate, and the two sides of each connecting plate are connected with connecting strips; the top of the connecting strip is symmetrically connected with two anti-blocking rods, the anti-blocking rods are connected to the inner sides of the corresponding feeding pipes in an inserted mode, a feeding pipe is connected to the center of the bottom of the feeding box in an inserted mode, and a control v