Plastic bottle cap mold limiting and guiding mechanism

The utility model discloses a limiting and guiding mechanism for a plastic bottle cap mold. The device comprises a mounting box and a mold mounting workbench, the mounting box is fixed at the lower end of the mold mounting worktable; the mold mounting workbench is mounted on the injection molding machine; a rotating shaft is rotationally connected into the mounting box; two sides of the rotating shaft are in key connection with first bevel gears; one side of each of the two first bevel gears is in engaged transmission connection with a second bevel gear; the second bevel gear is in key connection with a screw rod; the lower side of the screw rod is rotationally connected with the mounting box; the upper end part is rotationally connected with a support frame through a bearing; the supporting frame is welded to the upper end of the mounting box, the lead screw is in threaded transmission connection with a transmission nut, fixing blocks are embedded in the outer side of the transmissionnut, one side of each fi