METHOD OF MANUFACTURING FOAMED MOLDED ARTICLE AND MOLDING DIE

PROBLEM TO BE SOLVED: To provide a method of manufacturing a foamed molded article that can facilitate removing burrs in a short time, by not preventing occurrence of the burrs but by forming easily removable burrs, and to provide a molding die.SOLUTION: A lot of projections 8 are formed along a par...

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Bibliographische Detailangaben
Hauptverfasser:	OIKE HIDEKAZU, NAKAYAMA ATSUYA
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING 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 TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a method of manufacturing a foamed molded article that can facilitate removing burrs in a short time, by not preventing occurrence of the burrs but by forming easily removable burrs, and to provide a molding die.SOLUTION: A lot of projections 8 are formed along a parting line P that is a peripheral edge part of a cavity 4 at the die matching surface of an upper die 1 and a lower die 2. After the foamed resin stock solution is injected in a cavity 5 of the lower die 2, a through-hole 12 is formed in a burr 11 formed in the periphery of the foam molded article by die matching, heating, and foaming the foamed resin stock solution. After release the mold, the burr 11 can be easily removed along these through-holes 12.