Efficient piston type feeding device of equipment for producing fuel oil from waste plastics

The utility model relates to the technical field of plastic recycling and processing equipment, and discloses an efficient piston type feeding device of waste plastic fuel oil production equipment, which comprises a base, a power cavity and a material conveying cavity which are communicated with each other are formed in the base, a hydraulic cylinder is mounted on the inner side of the power cavity, and a piston rod is arranged on the inner side of the material conveying cavity; a frame is fixedly connected between the telescopic end of the hydraulic cylinder and the piston rod, a transmission mechanism is arranged on the inner side of the frame, a compression barrel is installed at the upper end of the base, a conveying pipe is communicated between the compression barrel and the conveying cavity, a rotating shaft is rotationally connected to the inner side of the compression barrel, and a spiral blade extending downwards is fixedly welded to the upper end of the rotating shaft. The lower end of the rotating