PVC raw material proportioning device

The utility model belongs to the field of PVC (polyvinyl chloride) material preparation, and particularly relates to a PVC raw material proportioning device which comprises a mixing tank body, a barrel is fixedly connected to the top of the mixing tank body; a fixing plate is rotationally connected to the inner side wall of the top end of the barrel; the top end of the barrel is fixedly connected with a top plate; the fixing plate is located at the bottom of the top plate. A plurality of vertical cylinders are fixedly connected to the bottom side of the fixing plate; an adjusting cylinder is connected to the vertical cylinder in a sliding manner; through the arrangement of the top plate, the fixing plate, the vertical cylinder, the adjusting cylinder, the pipe body, the material cylinder, the servo motor and the cylinder body, by means of the arrangement, the space size in the vertical cylinder is adjusted, so that the proportion of a plurality of different raw materials is adjusted, during repeated use, comp