Injection mold with threaded pipe arranged at back-off position

The invention relates to the technical field of injection molds, in particular to an injection mold with a threaded pipe arranged at an undercut position, comprising an undercut mold for undercut forming; the running direction of the first driving part is perpendicular to the back-off direction, and the first driving part is fixedly connected with the back-off mold; the hole blocking rod is located in the central axis direction of the threaded pipe, the hole blocking rod can be rotationally connected with the back-off mold, a threaded block is arranged at the top end of the hole blocking rod, and the threaded block can be in threaded connection with the threaded pipe; and the second driving piece is connected with the hole blocking rod, and the second driving piece can be connected with the hole blocking rod in a clamped mode in the circumferential direction and can be connected with the hole blocking rod in a sliding mode in the axial direction. The problems that in the demolding process of an injection mold