Frontier Inc.

Saburo Suzuki

Hidehiko Fukai

Masanobu Seki

In a biaxial stretch blow molding apparatus () for wide-mouthed containers, preforms () that are in an inverted state are conveyed on a single plane by preform carriers () that go around a carrier circuit () in the form of a loop, are heated via a heating station (), and are then transferred via a transfer station () to stretch blow molding mold assemblies () that go around a circular looped path (). The molded wide-mouthed containers () are taken out of the stretch blow molding mold assemblies () along a conveying path on a same plane and collected by a collection station (). Wide-mouthed containers can be formed continuously and at high speed, which is less wasteful and more economical than the case where wide-mouthed containers that are formed from films.

Biaxial stretch blow molding method and apparatus for wide-mouthed containers

A biaxially stretching blow molding apparatus perform biaxial stretch-molding for a preform into a predetermined shape by transporting a preform carrier supporting the preform along a transporting path extending across a heating portion and a stretch-molding portion, has first and second reversing means for reversing the preform carrier, and first and second transporting paths forming the transporting path. The first reversing means receives the preform carrier transported in up-side-down position along the second transporting path, reverses the received preform carrier into elected position, and transfers the preform carrier thus reversed to the first transporting path. The second reversing means receives the preform carrier transported in elected position along the first transporting path, reverses the received preform carrier into the up-side-down position, and transfers the preform carrier thus reversed to the second transporting path.

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Nagano-ken, Japan

Saburo Suzuki