Plastic article or earthenware shaping or treating: apparatus – Female mold and means to shape parison directly by internal... – With heating or cooling means
Patent
1995-09-14
1998-05-19
Davis, Robert
Plastic article or earthenware shaping or treating: apparatus
Female mold and means to shape parison directly by internal...
With heating or cooling means
425529, 425533, 425534, 425538, 425556, B29C 4906, B29C 4912, B29C 4964, B29C 4970
Patent
active
057532796
ABSTRACT:
An injection stretch blow molding apparatus and method wherein while the preforms are amply cooled the injection molding cycle time is shortened and furthermore a small number of blow cavities are used. In an injection molding section, N (N.gtoreq.2) preforms are injection molded in an upright state and then released from the injection cavity mold. While the preforms are cooled by the injection core mold, they are carried to a preform ejecting section. After the preforms cool to a temperature at which they can be ejected, the preforms are ejected from the injection core mold. In a transfer station, an array pitch of the simultaneously molded preforms are changed to a blow molding pitch, and then the preforms are transferred to a blow molding station in an inverted state. In the blow molding station, each preform is carried by a carrier member through a heating section into a blow molding section. In the blow molding section, n bottles are simultaneously blow molded from n preforms.
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Ogihara Shyuichi
Sato Koichi
Takada Minoru
Yokobayashi Kazuyuki
Davis Robert
Hoffman, Esq. David L.
Nissei ASB Machine Co. Ltd.
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