Hydraulic mechanism of plastic processing internal mixer

The utility model discloses a plastic processing internal mixer hydraulic mechanism which comprises a hydraulic push rod, a telescopic sleeve set and a material pressing assembly and further comprises a balancing weight set, the telescopic sleeve set is arranged at the bottom of the output end of the hydraulic push rod, the material pressing assembly is arranged at the bottom of the telescopic sleeve set, and the balancing weight set is arranged at the top of the material pressing assembly. The telescopic sleeve group comprises a rod sleeve, a pin block lifting groove, a pin block and a mounting lug; the material pressing assembly comprises a material pressing block, an inner rod and a pin hole. According to the hydraulic mechanism for the internal mixer for plastic processing, a set of hydraulic mechanism with flexible balance weight adjustment is provided for the internal mixer for plastic processing, and pressure can be better applied to materials in the internal mixer, so that mixing and plasticizing of t