Melt blending device

The utility model discloses a melt blending device which comprises a mixing cylinder and a feeding pipe, a motor is installed on the top of the mixing cylinder, a mixing assembly is arranged in the mixing cylinder, a feeding assembly is arranged on the top of the mixing cylinder, and a plurality of heating pipes are fixedly embedded in the inner side wall of the mixing cylinder. The cut polycarbonate particles are accumulated in a second cylinder, the second cylinder rotates at a constant speed in the first cylinder under the action of a second driving mechanism, and when a through groove of the second cylinder rotates to the position communicated with a pipeline, the polycarbonate particles accumulated in the second cylinder are injected into a high-heat mixing cylinder through the pipeline to be subjected to melt blending; meanwhile, the rotating frame rotates in the mixing barrel under the action of the first driving mechanism to stir and mix the polycarbonate particles until the polycarbonate particles ar