Thermal insulation pipe forming machine

The utility model discloses a thermal insulation pipe forming machine which comprises a base, a vertical plate and an outer barrel, the vertical plate is installed at the top of the base through an installation groove, a hardness tester is installed at one end of the top of the base through a supporting seat, and a first hydraulic cylinder is installed at the other end of the top of the base through a fixing groove. One end of the vertical plate is connected with a temperature controller through a fixing rod, the other end of the vertical plate is fixedly connected with an outer barrel througha connecting rod, a second hydraulic cylinder is installed on one side of the top end of the vertical plate through a fixing ferrule and a screw, and the power output end of the second hydraulic cylinder is connected with a cover plate. The inner diameter of the forming die can be adjusted conveniently, so that heat preservation pipes with different thicknesses can be formed conveniently, the material pushing rod can be