HDPE threaded pipe forming device

The utility model discloses a high-density polyethylene (HDPE) threaded pipe forming device which comprises a shell, a plurality of water inlet connectors, a plurality of water outlet connectors and a plurality of water outlet connectors, a cylindrical mounting cavity is transversely formed in the shell, and the water inlet connectors are communicated to the mounting cavity and are distributed around the axis of the mounting cavity; the thread forming part is coaxially and rotatably mounted in the mounting cavity, the interior of the thread forming part is hollow in the axial direction, continuous thread protrusions are formed on the inner wall of the thread forming part along a spiral line, and the inner wall, close to the inlet end, of the thread forming part is in a conical necking shape; the driving mechanism drives the thread forming piece to rotate around the axis; the outer wall of the end opening of the pipe body is pre-embossed through the corresponding threaded protrusion at the inlet end, then the