Plastic article or earthenware shaping or treating: apparatus – Female mold and means to shape parison directly by internal... – With heating or cooling means
Patent
1995-06-07
1998-04-28
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 4961, B29C 4970
Patent
active
057441766
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 and the operation rate of these blow cavities is increased. In an injection molding section, N (N.gtoreq.2) preforms are injection molded and then released from the injection cavity mold at a relatively high mold-release temperature. 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, n (1.ltoreq.n<N) of the simultaneously molded N preforms at a time are transferred to a blow molding station in (N
) transfer operations. In the blow molding station, each preform is carried by a carrier member through a heating section and a standby 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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