CO-INJECTION MOLDING PROCESS AND PARTS FORMED THEREBY

A co-injection molding system incorporating two or more injection gates feeding a common mold cavity to provide multiple cores surrounded by a skin material within the final finished part. An injection molding system including one or more slug traps disposed along the conveyance path between the inj...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	VILLARI, FRANK J, POYER, GLENN
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING FOODS OR FOODSTUFFS HUMAN NECESSITIES INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS PERFORMING OPERATIONS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS SHAPING OR WORKING OF FOODSTUFFS, NOT FULLY COVERED BY ASINGLE OTHER SUBCLASS THEIR TREATMENT, NOT COVERED BY OTHER CLASSES TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	A co-injection molding system incorporating two or more injection gates feeding a common mold cavity to provide multiple cores surrounded by a skin material within the final finished part. An injection molding system including one or more slug traps disposed along the conveyance path between the injection nozzle and the injection gate and/or at remote portions of the mold cavity to collect and retain vestigial slugs that may form at the injector nozzle and/or at injector gates. L'invention concerne un système de moulage par co-injection incorporant deux ou plus de deux vannes d'injection alimentant une cavité de moulage commune afin de fournir des noyaux multiples entourés d'un matériau stratifié à l'intérieur de la pièce finie finale. L'invention concerne également un système de moulage par injection comprenant un ou plusieurs systèmes de collecte de débris disposés le long du chemin de transport entre la buse d'injection et la vanne d'injection et/ou au niveau de parties situées à distance de la cavité de moulage, permettant de collecter et de conserver les débris résiduels susceptibles de se former au niveau de la buse d'injecteur et/ou des vannes d'injecteur.