Apparatus and method for manufacturing resin molded product

Details Apparatus and method for manufacturing resin molded product Apparatus and method for manufacturing resin molded product

2006-08-15

2006-08-15

Del Sole, Joseph S. (Department: 1722)

Plastic article or earthenware shaping or treating: apparatus

Means feeding fluent stock from plural sources to common...

Extrusion shaping means

C425S190000, C425S380000

Reexamination Certificate

active

07090479

ABSTRACT:
The manufacturing apparatus of a resin molded product has a feed block that sets a layer configuration of the resin molded product obtained by molding a plurality of molten resins. The feed block includes a feed block body having a through hole, and a plurality of replacement blocks that are removably fitted into the through hole and have layer configuring passages corresponding to different layer configurations. A replacement block before change is pushed out of the through hole by a replacement block having a layer configuring passage corresponding to a layer configuration after change, thereby changing the layer configuration. This allows an easy change of a layer configuration, and in particular, prevents degradation of resin due to heat or oxidation, and reduces time for the change and a material loss even when a significant change of the layer configuration such as a change of a layer arrangement is performed.

REFERENCES:
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patent: 5094788 (1992-03-01), Schrenk et al.
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Japanese Abstract No. 10337765, dated Dec. 22, 1998.

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