MANUFACTURING DEVICE OF BUFFER MATERIAL FOR PACKING

PURPOSE:To enable a buffer pad of desired shape to be braced by a support easily and positively by partitioning a space into a molding for molding foam resin and the support in one piece by injecting a gas into a die cavity and another non-molding space. CONSTITUTION:A cavity 12 is formed by a femal...

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Bibliographische Detailangaben
Hauptverfasser:	HARAO MASARU, KAWASAKI YUTAKA, HAYASHIDA YOICHI, MITSUKO KOUJIROU, EGUCHI TATSUYA, MARUYAMA YASUO, HORIYAMA ICHIRO, WADA TETSUO
Format:	Patent
Sprache:	eng
Schlagworte:	ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS,e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES,DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS CONVEYING HANDLING THIN OR FILAMENTARY MATERIAL INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULARARTICLES INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS PACKAGES PACKAGING ELEMENTS PACKING PERFORMING OPERATIONS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS STORING TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	PURPOSE:To enable a buffer pad of desired shape to be braced by a support easily and positively by partitioning a space into a molding for molding foam resin and the support in one piece by injecting a gas into a die cavity and another non-molding space. CONSTITUTION:A cavity 12 is formed by a female die 10 and a male die 11, then vapor holes are provided on each cavity surface, and a vapor chamber for heating is formed on the rear of the cavity. In addition, a gas injection device 20 is provided at the specified position of the male die 11. A support 92 is engaged with the interior of the cavity 12 of the female die 10, and a gap W is formed between the female die 10 and the male die 11 to close the dies. Next, a space between a molding space 12a and a non-molding space 12b is partitioned by injecting a gas from the opening 22b of the gas injection device 20, and the molding space 12a is filled with resin particles by a feeder running through the female die 10. After that, the female die 10 and the male die 11 are closed and heated to cause the resin particles to foam. During this time, the gas is ejected from an opening 22b, so that there is no fear that the non-molding space 12b is filled with the resin particles.