Stretching blow molding apparatus for cup-like containers

Details Stretching blow molding apparatus for cup-like containers Stretching blow molding apparatus for cup-like containers

1985-10-25

1988-03-22

Woo, Jay H.

Plastic article or earthenware shaping or treating: apparatus

Female mold and means to shape parison directly by internal...

264537, 264538, 425529, 425534, 425537, 425540, B29C 4900, B29C 4912

Patent

active

047325577

ABSTRACT:
The present invention provides an injection stretch blow molding apparatus in which a peripheral edge of a flat preform forms the edge or lip portion of a cup-like container. A securing or grip mold and a core mold are brought together to form the lip. The securing or grip mold is carried on the underside of a rotary transfer disk. The peripheral edge of the preform is sandwiched in between a shoulder formed at the lower end of a blow core and the securing or grip mold when stretch blow molding is performed, resulting in a cup-like container. The finished container is then removed upwardly from the securing or grip mold.

REFERENCES:
patent: 3944643 (1976-03-01), Sato et al.
patent: 4105391 (1978-08-01), Aoki

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