A hollow article 10 is molded in a state where an inner surface of a neck portion 11 including an inner screw portion is held by an inner neck mold 52, and then, the hollow article 10 is demolded from the inner neck mold 52 by inserting an ejection rod 81 into the hollow article 10 to be engaged with an inner surface of the hollow article 10 and rotating the hollow article 10 together with the ejection rod 81.

Blow molded plastic components are disclosed having integrally formed brackets, formed together with the component in the molding step. A method of blow molding is disclosed for integrally forming brackets onto a blow molded component. More specifically, the disclosures relates to a blow molded plastic component having a bracket formed integrally in the blow molding process and configured to rotate onto and lockably engage undercut features or lugs formed integrally on the outer surface of the blow molded component, all features formed during the molding process.

Blow molded plastic components are disclosed having integrally formed brackets, formed together with the component in the molding step. A method of blow molding is disclosed for integrally forming brackets onto a blow molded component. More specifically, the disclosures relates to a blow molded plastic component having a bracket formed integrally in the blow molding process and configured to rotate onto and lockably engage undercut features or lugs formed integrally on the outer surface of the blow molded component, all features formed during the molding process.

Fixation of a container shape of a hollow molded body is not completed during a blow molding process but is completed during an ejection process of an ejection section, thereby shortening an operation time in a stretch blow molding section, and improving the production efficiency of hollow molded bodies by shortening the time required for the blow molding process during a molding cycle.

Cooling air is blown into the inside of the hollow molded body disposed in the ejection section in the ejection process C during the blow molding process B in the next molding cycle to cool the hollow molded body disposed in the ejection section to solidify the container shape.

Fixation of a container shape of a hollow molded body is not completed during a blow molding process but is completed during an ejection process of an ejection section, thereby shortening an operation time in a stretch blow molding section, and improving the production efficiency of hollow molded bodies by shortening the time required for the blow molding process during a molding cycle.

Cooling air is blown into the inside of the hollow molded body disposed in the ejection section in the ejection process C during the blow molding process B in the next molding cycle to cool the hollow molded body disposed in the ejection section to solidify the container shape.

A blow molding capable of maintaining the parison thickness distribution uniform, fabricating high-quality molded products, and improving its productivity. A parison supply device for supplying, to a blow mold, a parison discharged from an extrusion die, the parison supply device including: a pair of chucks for pinching, from above and below, a parison discharged downward from the extrusion die; and a chuck operation part for controlling an operation of pinching the parison by the pair of chucks and an operation of moving the pair of chucks. By the chuck operation part, the pair of chucks performs the operation of pinching the parison while being moved downward.

A method of forming a headrest assembly includes providing a first mold that encloses a first cavity in a closed condition. A support is positioned in the first cavity. A first material is blow molded into the first cavity and around a portion of the support to form a core part. The core part and support are removed from the first mold. A second mold encloses a second cavity in a closed condition. The core part and the support are placed into the second mold in an open condition. A fluid is injected into the core part through the support. The second mold is converted to the closed condition. A second material is injection molded into the second cavity and around the core part to form an outer shell around the core part. A fluid is withdrawn from the core part through the support.

A method of forming a headrest assembly includes providing a first mold that encloses a first cavity in a closed condition. A support is positioned in the first cavity. A first material is blow molded into the first cavity and around a portion of the support to form a core part. The core part and support are removed from the first mold. A second mold encloses a second cavity in a closed condition. The core part and the support are placed into the second mold in an open condition. A fluid is injected into the core part through the support. The second mold is converted to the closed condition. A second material is injection molded into the second cavity and around the core part to form an outer shell around the core part. A fluid is withdrawn from the core part through the support.

A biaxial stretch blow molding device comprises: a first guide shaft which is erected on an upper base and to which a blow core fixing member is slidably coupled; a second guide shaft erected on the stretch rod fixing member; a support member fixed to the first guide shaft and provided with a guide hole through which the second guide shaft is slidably inserted; a first drive device that moves the blow core fixing member forward and backward independently of the stretch rod fixing member; and a second drive device that moves the stretch rod fixing member forward and backward independently of the blow core fixing member.

The present invention relates to a base assembly (100) for forming a base portion of a plastic container. The base assembly comprises a base pedestal (104), a base mold attached to the base pedestal, a push rod (102) movable between a first position and a second position with respect to the base mold to reposition a portion of the plastic container, and an activation mechanism adapted to move the push rod between the first position and the second position.