Auxiliary feeding device for preparing plasticized rubber powder

The utility model discloses an auxiliary feeding device for preparing plasticized rubber powder, which comprises a feeding cylinder obliquely arranged on a fixed seat, the feeding cylinder comprises a rotating shaft arranged in the middle of the feeding cylinder, and a driving mechanism arranged at the lower end of the rotating shaft close to the feeding cylinder and used for driving the rotating shaft to rotate; the higher end of the rotating shaft close to the feeding cylinder is connected with a water inlet pipe through a flange bearing; the lifting blade is located in the feeding barrel and spirally arranged on the outer side of the rotating shaft, and the lifting blade communicates with the interior of the rotating shaft; and the multiple screening arc plates are sequentially arranged on the bottom side of the feeding barrel, screening holes are evenly formed in each screening arc plate, the hole diameters of the screening holes are sequentially increased from bottom to top, and the screening arc plates