Plastic mixing device

The utility model discloses a plastic mixing device. The plastic mixing device comprises a rack, a mixing barrel which is fixedly arranged on the rack, a plurality of mixing fans which are arranged rotatably in the mixing barrel; each mixing fan comprises a steel sleeve and a plurality of mounting seats, the steel sleeve comprises an axis P and a diameter D, the mounting seats are fixedly arranged on the circumference of the steel sleeve, mounting slots are formed in the mounting seats, each mounting slot comprises a central axis F and a width B, an included angle A between the axis P of the steel sleeve and the centre axis F of the mounting slot is 10-30 degrees, wherein the ratio of the diameter D of the steel sleeve to the width B of the mounting slot is 100:3; the plastic mixing device further comprises a plurality of feeders which are fixedly arranged on the rack and are located on the upper part of the mixing barrel. The plastic mixing device is high in mixing speed, high in efficiency, small in vibration, can be used for mixing and discharging of materials at any time, is applicable for mixing a plurality of particles, and performs uniform mixing.