Two-stage injection-molding machine

Details Two-stage injection-molding machine Two-stage injection-molding machine

1996-06-03

1997-12-23

Heitbrink, Tim

Plastic article or earthenware shaping or treating: apparatus

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

With coupling between charger and mold

2642978, 2643288, 425588, 425810, B29C 4522

Patent

active

057005001

ABSTRACT:
The invention relates to a two-stage injection-molding machine with a fixed mold plate, a movable mold plate and a two-part intermediate assembly, arranged to be movable between said plates, and with a supply of injection-molding material for the intermediate assembly to supply the stages formed between the intermediate assembly and the mold plates with injection-molding material. In order to simplify the production of injection-molded parts of different colors in one and the same injection-molding process it is proposed, in accordance with the invention, that for each stage there has been provided a separate supply of injection-molding material via a separate main channel. In addition to the free choice of the color for each stage, it is possible to use various types of plastic per stage in one and the same injection-molding process.

REFERENCES:
patent: 5112558 (1992-05-01), Schad et al.

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