METHOD AND APPARATUS FOR MAKING A BLOW MOLDED FUEL TANK

A blow molding method and a blow molding device of a fuel tank are provided to form an uneven film and to protect a seam part by tightening and closing an opening of the fuel tank without a folding part or pocket of fuel tank material with a diamond shaped blow pin. A blow molding device of a fuel t...

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Bibliographische Detailangaben
Hauptverfasser:	QUICK, CHRISTOPHER K, BRANDNER, BRIAN W, KNUEPPEL, HARALD, KERSEY, KEITH D
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULARARTICLES 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:	A blow molding method and a blow molding device of a fuel tank are provided to form an uneven film and to protect a seam part by tightening and closing an opening of the fuel tank without a folding part or pocket of fuel tank material with a diamond shaped blow pin. A blow molding device of a fuel tank is composed of a mold(12) having a mold cavity and an opening communicated with the mold cavity, a blow pin(22) flowing compressed gas and partially moving between an extended position communicated with the mold cavity and a backward position out of the mold cavity in the opening of the mold cavity, and a pinch plate assembly(25) moving between an opening position spaced from the opening of the mold and a closing position closing the opening of the fuel tank formed by the blow pin while blow molding by forming the seam part by assembling material of the fuel tank around the opening and closing the material of the fuel tank.