Injection blow molding apparatus and method

Details Injection blow molding apparatus and method Injection blow molding apparatus and method

1972-12-05

1976-03-02

Husar, Francis S.

Plastic article or earthenware shaping or treating: apparatus

Dough divider type including trap chamber

Rotating trap chamber pickup

425387B, 425441, 425DIG205, 425DIG211, B29D 2302, B29D 2303, B29F 100

Patent

active

039415392

ABSTRACT:
Injection blow molding equipment for the production of hollow articles wherein cores are axially inserted in blow molds and blank molds is disclosed. Compact core assemblies and fluid supply systems integral with the platens allow the mold parts to be mounted on the surfaces of opposed, relatively movable platens. Partible neck rings associated with each core open divergently outwardly as the blow mold and core separate, to shorten machine cycle time. A manifold, supplied with cooling fluid from the periphery of a core mounting plate, distributes heat transfer fluid to the core assemblies for cooling the neck rings. In one embodiment, mating blow mold sections are mounted on contra-oscillatable mounting members and are opened and closed by arcuate movement of the mounting members.

REFERENCES:
patent: 2290129 (1942-07-01), Moreland
patent: 2331687 (1943-10-01), Hobson
patent: 2901769 (1959-09-01), Sherman et al.
patent: 3183552 (1965-05-01), Farkas
patent: 3264684 (1966-08-01), Moslo
patent: 3408691 (1968-11-01), Ruekberg
patent: 3616491 (1971-11-01), Vollers
patent: 3624672 (1971-11-01), Splvy
patent: 3776991 (1973-12-01), Marcus
patent: 3816580 (1974-06-01), Valyi

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