Injection molding apparatus with improved cooling

Details Injection molding apparatus with improved cooling Injection molding apparatus with improved cooling

1974-01-15

1976-01-06

Husar, Francis S.

Plastic article or earthenware shaping or treating: apparatus

Dough divider type including trap chamber

Rotating trap chamber pickup

425326B, 425DIG208, 425DIG209, B29D 2302, B29D 2303

Patent

active

039307794

ABSTRACT:
This invention cools the blowing mold and the plastic article blown therein to shorten the time that a core rod must remain at a blowing station of a blow molding machine for making plastic articles. The cooling is performed by conditioned air that is dried to lower its dew point. An air curtain is used to prevent other air from contacting with and depositing moisture on the mold. In order to take advantage of the shorter time at the blowing station, an auxiliary injection device is used to also shorten the time required for the injection operation; and auxiliary cooling is supplied to the core rod at the stripper station.

REFERENCES:
patent: 3029468 (1962-04-01), Valyi
patent: 3191225 (1965-06-01), Polka
patent: 3707591 (1972-12-01), Chalfant
patent: 3709644 (1973-01-01), Farrell
patent: 3761219 (1973-09-01), Flynn et al.
patent: 3789093 (1974-01-01), Bose

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