Plastic article or earthenware shaping or treating: apparatus – Preform severing means – Means for forming from bulk material – means for severing and...
Patent
1985-05-03
1987-02-03
Hoag, Willard E.
Plastic article or earthenware shaping or treating: apparatus
Preform severing means
Means for forming from bulk material, means for severing and...
425345, 425348R, 425361, 425408, 425576, B29C 4308, B29C 4506
Patent
active
046406735
ABSTRACT:
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.
REFERENCES:
patent: 2891281 (1959-06-01), Heingelman
patent: 4060053 (1977-11-01), Ohmi
patent: 4260356 (1981-04-01), Fujiwara et al.
patent: 4497765 (1985-02-01), Wilde et al.
Kubo Tateo
Oshima Noritsugu
Sakaguchi Kenichi
Takeda Hiroshi
Hoag Willard E.
Toyo Seikan Kaisha Ltd.
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