This utility model discloses a synchronous lifting device for mold opening and closing of an injection blow molding machine, comprising a fixed plate, support columns, a buffer mechanism, an upper mold plate, a lower mold plate, a bottom plate, a connecting frame and an air cylinder. Support columns for supporting are symmetrically and fixedly connected to the bottom end surface of the fixed plate, an air cylinder for providing power is threadedly connected to the center of the end surface of the fixed plate, and a bottom plate for supporting is fixedly connected to the bottom end surface of the air cylinder. The utility model is provided with a buffer mechanism, an upper mold plate, a lower mold plate and a connecting frame. The connecting frame can ensure the stability of the two groups of upper mold plates, thus facilitating the synchronization of mold opening and closing during subsequent blow molding and preventing mold damage caused by deviation of the two groups of upper mold plates and lower mold plates. During mold closing, the upper mold plate and the lower mold plate can be precisely matched through guide pillars and positioning holes to complete closing, preventing external mold damage and reduced service life caused by inaccurate positioning of the upper and lower mold plates in the follow-up process.

Country Code: CN

Application Number: CN201920829475.X