BLOW MOLDING MECHANISM, INTERMEDIATE MOLD, AND MOLD UNIT

Abstract: a blow molding mechanism includes a split mold that forms a part of a mold used in blow molding with respect to an intermediate molding product, performs mold closing before the blow molding starts, and performs mold opening after the blow molding is completed; a first bottom portion mold that forms a part of the mold, and molds at least a part of a bottom portion of the intermediate molding product on a side opposite to a mouth portion; and a suction unit that starts suction of at least a part of the bottom portion of a final molding product after the mold opening is performed and before the final molding product is separated from the first bottom portion mold, at the same time as the split mold performs the mold opening, or before the split mold performs the mold opening, after the blow molding is completed.

Inventor(s): Takayuki SATO, Rei TAKAHASHI

CPC Classification: B29C49/30 (SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING (making preforms ; making laminated products by combining previously unconnected layers which become one product whose layers will remain together - ))

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