A die structure for a hollow plastic blow molding machine belongs to the technical field of blow molding machinery. It comprises a die core, a die ring, an elastic ring, a pressure ring and a set of elastic ring thixotropic devices. The die core is located at the center of the die ring cavity. The die ring is fixed to the bottom of the heating cylinder of the die head mechanism. The lower part of the die ring cavity forms an elastic ring flange fitting groove. The upper part of the elastic ring forms an elastic ring flange and the lower part extends out of the die ring cavity. The elastic ring pressure ring is fixed to the die ring. The lower part of the elastic ring pressure ring cavity forms a slider cavity. A top rod hole is arranged on the side wall of the slider cavity. A set of elastic ring thixotropic devices are fixed to the die ring and cooperate with the top rod hole. The features are: each elastic ring thixotropic device comprises an oil cylinder fixing seat, an oil cylinder base, a top seat, an oil cylinder sleeve, an oil cylinder piston rod, a slider top rod, a cooling medium partition plate, a cooling medium joint and an adjusting nut. It ensures the service life of the elastic ring; has a simple structure and low cost; and ensures stable and reliable operation.
Country Code: CN
Application Number: CN201510829869.1
