The present invention discloses a mold opening and closing device for a hollow blow molding machine, comprising a mold shifting bracket and two mold shifting modules. A placement groove is formed on the upper surface of the mold shifting bracket along its length direction, and the placement groove penetrates through the left and right ends of the mold shifting bracket. Two mold shifting cylinders are horizontally and oppositely arranged in the placement groove; mold shifting seats are horizontally fixed at the ends of the hydraulic rods on the two mold shifting cylinders; the two mold shifting modules are respectively fixed on the two mold shifting seats. The mold shifting module includes an outer mold plate, an inner mold plate, a mold opening and closing cylinder and a cylinder fixing seat; the outer mold plate is vertically fixed at one end of the mold shifting seat, the mold opening and closing cylinder is horizontally fixed at the other end of the mold shifting seat through the cylinder fixing seat, and the hydraulic rod on the mold opening and closing cylinder points to the outer mold plate; the inner mold plate is vertically fixed at the end of the hydraulic rod on the mold opening and closing cylinder. The present invention effectively improves the production efficiency of the blow molding machine.
Country Code: CN
Application Number: CN202111382424.5
