Plastic pipeline extrusion molding device

The utility model provides a plastic pipeline extrusion molding device, which relates to the field of pipe production, and comprises a machine base, a driving motor, a screw, a hopper and a heating component, the driving motor is arranged on the machine base, the screw is in transmission connection with an output shaft of the driving motor through a speed reducer, the screw is in running fit in a central hole of a machine barrel, and the hopper is arranged in the machine barrel. The heating component is arranged on the outer circumferential surface of the machine barrel, the screw rod is a hollow screw rod, and the hopper is arranged on the machine barrel and is communicated with a central hole of the machine barrel through the square blanking column. According to the utility model, the heat conduction speed of the screw is improved by adopting the hollow screw, so that materials can be quickly melted in the charging barrel, and the square blanking column is adopted to enable the materials to enter the centra