Hot mold shrinkage deviation rectifying device

The utility model discloses a hot die shrinkage deviation rectifying device which comprises a base and a hydraulic cylinder, a lower die is arranged on the surface of the base, a portal frame is fixed above the base, grooves are formed in the two sides of the surface of the base, lead screws are arranged in the grooves, the hydraulic cylinder is fixed to the top of the portal frame, an upper die is arranged at the bottom of the hydraulic cylinder, and the upper die is fixed to the top of the portal frame. And meanwhile, limiting sleeves are fixed on two sides of the upper die and the lower die. The hot die shrinkage deviation correcting device is provided with the limiting blocks and the limiting sleeves, the lead screw rotates to drive the movable block to move so that the movable block can drive the transverse rod and the limiting plate to move at the same time, and after the upper die and the lower die are attached to each other, the limiting blocks at the two ends of the limiting plate can be clamped into