Toyo Seikan Kaisha, Ltd.

Noritsugu Oshima

Hiroshi Takeda

Tateo Kubo

Kenichi Sakaguchi

A compression molding apparatus comprising a rotary compression molding means, a material feed means and an article carrying means. The rotary compression molding means includes a rotating supporting member mounted rotatably about its central axis, a plurality of molding die means mounted on said rotating supporting member at circumferentially spaced intervals, each of said molding die means having an upper die assembly and a lower die assembly cooperating with each other, at least one of the upper die assembly and lower die assembly being freely movable with respect to the other, a driving source for rotating said rotating supporting member in a predetermined direction and moving said molding die means through a circular conveying passage including a material charging zone, a molding zone, a cooling zone and an article discharging zone located successively, and a die opening and closing means for moving at least one of said upper and lower die assemblies in a predetermined manner with respect to the other according to the movement of the molding die means. The material feed means feeds a plastic material to the molding die means in the material charging means. The article carrying means carries the molded article from the molding die means in the article discharging zone.

Compression molding apparatus

A compression molding apparatus comprising a rotary compression molding means, a material feed means and an article carrying means. The rotary compression molding means includes a rotating supporting member mounted rotatably about its central axis, a plurality of molding die means mounted on said rotating supporting member at circumferentially spaced intervals, each of said molding die means having an upper die assembly and a lower die assembly cooperating with each other, at least one of upper die assembly and lower die assembly being freely movable with respect to the other, a driving source for rotating said rotating supporting member in a predetermined direction and moving said molding die means through a circular conveying passage including a material charging zone, a molding zone, a cooling zone and an article discharging zone located successively, and a die opening and closing means for moving at least one of said upper and lower die assemblies in a predetermined manner with respect to the other according to the movement of the molding die means.

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Kanagawa, Japan

Noritsugu Oshima