The utility model discloses a mold opening and closing structure of a hollow blow molding machine in the technical field of hollow blow molding machines, comprising a base. A driving cavity is arranged inside the base, a sliding rod is transversely arranged in the driving cavity, sliding blocks are sleeved on the left and right outer walls of the sliding rod, a first sliding seat and a second sliding seat are respectively arranged at the tops of the two groups of sliding blocks, a first mold frame and a second mold frame are respectively arranged at the tops of the first sliding seat and the second sliding seat, a first mold and a second mold are respectively mounted on opposite sides of the first mold frame and the second mold frame, a first hinge rod and a second hinge rod are respectively hinged at the bottoms of the two groups of sliding blocks, a hinge plate is arranged at the top of the driving mechanism, and both the first hinge rod and the second hinge rod are hinged to the top of the hinge plate. Under the action of the driving mechanism, the utility model drives the hinge plate to rotate, thereby driving the inward ends of the first hinge rod and the second hinge rod to perform quasi‑circular motion around the center of the hinge plate, so as to drive the first mold and the second mold to open and close, facilitating demolding with high demolding efficiency.
Country Code: CN
Application Number: CN202122191757.1
