Injection mold with thin wall hole forming means

Details Injection mold with thin wall hole forming means Injection mold with thin wall hole forming means

1985-02-25

1986-03-18

Flint, Jr., J. Howard

Plastic article or earthenware shaping or treating: apparatus

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

Mold having movable core or movable pin

425468, 425588, 425DIG5, 249 64, B29C 106, B29F 1022

Patent

active

045765685

ABSTRACT:
A mold assembly for producing a plastic container having internal compartments separated by partitions. A male mold is slidably moveable into a female mold and includes a plurality of upstanding cores to form the container with injectors provided to force plastic melt between the molds and between the cores. A plurality of side locking members are reciprocably mounted in the cores and when extended contact adjacent cores limiting relative motion therebetween. The locking members form holes in the partitions formed between the cores. The locking members are withdrawn only after the plastic melt is cooled.

REFERENCES:
patent: 3473197 (1969-10-01), Wilds et al.
patent: 3564660 (1971-02-01), Darnell
patent: 4278417 (1981-07-01), Wilds et al.
patent: 4481161 (1984-11-01), Grannen

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