The invention provides a mold clamping and positioning device for an injection blow molding machine, comprising a fixed mold plate and a movable mold plate. The fixed mold plate and the movable mold plate are respectively provided with an upper plate and a lower plate at the upper and lower parts, and positioning units with the same structure are arranged on the upper surface of the upper plate and the lower surface of the lower plate. The positioning unit on the upper plate comprises a first positioning block, an air cylinder and a second positioning block, the air cylinder and the second positioning block are both fixed on the upper plate, the air cylinder is provided with an air cylinder connecting rod, the end of the air cylinder connecting rod is connected with the first positioning block, a long hole penetrating the upper and lower surfaces of the upper plate is formed on the surface of the upper plate, and the lower part of the first positioning block passes through the long hole and is fixed with the movable mold plate. A positioning convex point is arranged on the surface of the first positioning block opposite to the second positioning block, a positioning groove is arranged on the second positioning block at a position corresponding to the positioning convex point on the first positioning block, and when the air cylinder drives the first positioning block to move along the long hole, the positioning convex point extends into the positioning groove. The invention has the beneficial effect of realizing precise positioning when the movable mold and the fixed mold are clamped.

Country Code: CN

Application Number: CN201410178558.9