Combined mixing device for engineering plastic master batch production

The utility model provides a combined material mixing device for engineering plastic master batch production, which relates to the technical field of plastic master batch processing and comprises a material mixing barrel, a barrel cover I is movably mounted at the top end of the material mixing barrel, a box body is fixedly mounted on the surface of the top end of the barrel cover I, a power device is arranged in the box body, and the power device is connected with the material mixing barrel. A material leaking device is arranged on the surface of the top end of the barrel cover I, and four supporting legs are fixedly mounted on the surface of the bottom end of the material mixing barrel. According to the material mixing device disclosed by the utility model, the motor drives the long shaft to rotate through the short shaft, the bevel gear I and the bevel gear II, and then drives the plurality of material mixing roller columns on the surface of the long shaft to rotate, so that materials in the material mixin