Rubber and plastic blending rubber mixing mill

The utility model relates to a rubber and plastic blending rubber mixing mill which comprises a mixing box, and a rotating roller is movably sleeved in the mixing box; an air inlet mechanism is arranged on the right side of the mixing box; a ventilation mechanism is arranged on the left side of the mixing box; a preheating cavity is formed in the mixing box; a feeding opening is formed in the top surface of the mixing box; a partition plate is fixedly sleeved with the mixing box and movably sleeved with the rotating roller, an air outlet hole is formed in the mixing box, and the inner end and the outer end of the air outlet hole communicate with the preheating cavity and the feeding port correspondingly. According to the utility model, the temperature is increased through the heating pipe in the inner cavity, the surface temperature of the rotating roller is increased from the inside by utilizing the heated air, and the heating effect is improved, so that the stirring and softening efficiency is improved, and