The utility model discloses an externally controlled mold opening and closing oil circuit for a vertical injection blow molding machine, comprising an installation fixed plate. A first hydraulic control device and a second hydraulic control device are symmetrically installed on both sides of the installation fixed plate, a mold opening and closing main body is installed in the middle of the front end of the installation fixed plate, limit holes are symmetrically formed at both ends of the installation fixed plate, telescopic holes are uniformly and symmetrically formed on the front end surface of the installation fixed plate, connecting plates are symmetrically connected to both ends of the installation fixed plate, a hydraulic oil control box is installed in the second hydraulic control device, and a telescopic control main body is installed inside the hydraulic oil control box. The utility model controls the opening and closing of the mold through both hydraulic control and electric control, so that the product is fully closely combined with the mold groove during injection blow molding, ensures that the specifications and shapes of the produced products meet production requirements, and greatly reduces the reject rate.

Country Code: CN

Application Number: CN201920786658.8