Stretching blow molding apparatus for cup-like containers
AssigneeNissei Asb Machine Co., Ltd.
InventorDaiichi Aoki
Life of this patent
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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.
Claims16
An injection blow molding apparatus for manufacturing plastic cup-like articles from an injected preform, comprising:
- a support including a first surface for carrying and holding a preform having a peripheral edge by the peripheral edge of the preform and having an opening through the support;
- an injection stage having an injection mold part including an opening therein and a core mold part for disposition inside the opening of said injection mold part, the injection stage having means for releasably accepting the support in the opening of said injection mold part and in between the injection mold part and the core mold part to define an injection cavity in which the preform is molded and is thereafter supported and carried by the support;
- a molding stage having a blow mold for blow molding the preform into a finished article;
- and
- removing means for removing the finished article from the support, through the opening in the support, the removing means including means for engaging the finished article and for raising the article through the opening in the support.
Dependencies are inferred from the claim text.