High speed injector for molding machines

Details High speed injector for molding machines High speed injector for molding machines

1978-03-14

1980-07-15

Pavelko, Thomas P.

Plastic article or earthenware shaping or treating: apparatus

Female mold and charger to supply fluent stock under...

With means to heat or cool

425548, 425552, 425566, B29F 103

Patent

active

042126258

ABSTRACT:
An injector for molding machine capable of operation with a simple mold having few cavities at a total cycle of as little as one to five seconds, thereby accomplishing high speed production with a minimum number of mold cavities; the injector having a nozzle structure so arranged as to minimize heat transfer to the mold whereby the mold may be maintained at a temperature to effect rapid cooling and ejection of the molded part, while the molding material in the nozzle is maintained in a fluid condition; the rapid cycle of operation serving to maintain the desired nozzle temperature, also.

REFERENCES:
patent: 2814831 (1957-12-01), McKee
patent: 3103039 (1963-09-01), Robinson
patent: 4013393 (1977-03-01), Gellert
patent: 4017242 (1977-04-01), Mercer
patent: 4043740 (1977-08-01), Gellert
patent: 4094447 (1978-06-01), Gellert
patent: 4125352 (1978-11-01), Gellert

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