Plasticizer mixing device for PVC insulating material

The utility model discloses a plasticizer mixing device for a PVC insulating material. The plasticizer mixing device comprises a frame body, the bin body is installed on the frame body, the interior of the bin body is hollow, a stirring cavity is formed, an electric heating plate is arranged on the inner wall of the bin body, and a feeding port and a discharging port which are both communicated with the stirring cavity are formed in the bin body; the stirring shaft can be rotatably mounted in the stirring cavity along the axis of the stirring shaft, and the stirring shaft is provided with a plurality of groups of first mounting holes which are distributed in the vertical direction; the multiple sets of mounting sleeves are arranged in the vertical direction, and second mounting holes corresponding to the first mounting holes are formed in each set of mounting sleeves and used for detachably connecting the mounting sleeves with the stirring shaft; a plurality of groups of supporting rods are arranged on the mo