Injection molding nozzle manifold

Details Injection molding nozzle manifold Injection molding nozzle manifold

1996-01-16

1997-06-24

Heitbrink, Tim

Plastic article or earthenware shaping or treating: apparatus

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

With means to heat or cool

2643288, 425570, 425572, 425588, B29C 4522

Patent

active

056415265

ABSTRACT:
Hot tip injection molding apparatus having a heated melt distribution manifold for conveying melt to a number of gates. A number of nozzle manifolds are closely mounted to the front surface of the heated manifold. Each nozzle manifold has a number of spaced nozzle portions extending from a rear manifold portion. A melt channel branches from an inlet on the rear surface of the rear manifold portion to an outlet on the conical surface of each nozzle portion. The rear surfaces of the nozzle manifolds are rectangular rather than round to improve the efficiency of heat transfer from the heated manifold to the nozzle manifolds.

REFERENCES:
patent: 4094447 (1978-06-01), Gellert
patent: 4921708 (1990-05-01), Gellert
patent: 5030084 (1991-07-01), Gellert et al.
patent: 5366370 (1994-11-01), Gellert
patent: 5551863 (1996-09-01), Hepler
patent: 5569475 (1996-10-01), Adas et al.

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