Bottle flake raw material pretreatment mixing device with uniform mixing structure

The invention discloses a bottle flake raw material pretreatment mixing device with a uniform mixing structure, which comprises a fixed frame, a plurality of groups of feeding bins are arranged on the upper base surface of the fixed frame, the bottom of each feeding bin is fixedly connected with a connecting baffle in a penetrating manner, the other end of each connecting baffle is fixedly connected with a discharging bin, and a mixing bin is arranged right below the output end of each discharging bin. An air pressure assembly is arranged at one end of the material mixing bin, a premixing box is fixedly connected to the end, away from the air pressure assembly, of the material mixing bin in a penetrating mode, multiple sets of flow sensors are arranged in a connecting baffle, multiple sets of air pressure pushing assemblies are fixedly installed in the discharging bin, and multiple sets of distance sensors are fixedly installed on the upper wall of the discharging bin. A plurality of groups of flow limiting a