Plastic particle mixing machine

The utility model discloses a plastic particle mixing machine which comprises a mixing barrel with a feed port at the top and a discharge port at the bottom, a mixing shaft with a vertical axis extending up and down is rotatably connected onto the mixing barrel, a mixing paddle arranged in the mixing barrel is arranged at one end of the mixing shaft, and a motor fixed on the mixing barrel is arranged at the other end of the mixing shaft. A first auxiliary shaft coaxial with the material stirring shaft is arranged at the bottom of the material stirring barrel, a fixed gear arranged in the material stirring barrel is fixed to the first auxiliary shaft, and a second auxiliary shaft with the axis horizontally extending left and right is arranged on the side face of the material stirring paddle; the second auxiliary shaft is rotationally connected with a movable gear engaged with the fixed gear. The plastic particle mixing machine has the characteristics of uniform and sufficient mixing and good mixing effect, and