Plastic article or earthenware shaping or treating: apparatus – Female mold and charger to supply fluent stock under... – With accumulator – trap chamber – or serially arranged valves...
Patent
1998-02-20
2000-02-29
Heitbrink, Jill L.
Plastic article or earthenware shaping or treating: apparatus
Female mold and charger to supply fluent stock under...
With accumulator, trap chamber, or serially arranged valves...
366 75, 366 77, 366 98, 425561, B29C 4546
Patent
active
060302038
ABSTRACT:
This invention relates to an injection unit for an injection molding machine, which is free of inconvenience such as a reduction in ability and clogging of a powdery filler upon molding a powdery-filler-added resin, can prevent cutting of long fibers upon molding a long-fiber-filled resin, can also be applied to feed resins which give off evaporated gas, can be used for a wide variety of resins, and can be constructed with a substantially-reduced machine length. The injection unit is therefore constructed of a tank and an injection cylinder. The tank has a built-in mixing rod with numerous fins extending from the mixing rod, whereby a feed resin is plasticized by rotation of the mixing rod. The injection cylinder is connected with the tank and has a built-in injection plunger, whereby a molten resin fed from the tank is injected into a mold by the injection plunger. The injection unit according to this invention is useful especially upon a feed resin, such as a powdery-filler-added resin or a long-fiber-filled resin, for injecting the thus-fed resin into a mold.
REFERENCES:
patent: 485282 (1892-11-01), Lang
patent: 2309729 (1943-02-01), Gordon
patent: 2505540 (1950-04-01), Goldhard
patent: 2895645 (1959-07-01), Pelak
patent: 3045283 (1962-07-01), Keiser
patent: 3259374 (1966-07-01), Doebl et al.
patent: 3723037 (1973-03-01), Formo
patent: 5030080 (1991-07-01), Fukuda et al.
patent: 5102326 (1992-04-01), Bacher et al.
patent: 5413475 (1995-05-01), Murata et al.
patent: 5795601 (1998-08-01), Yamada et al.
Heitbrink Jill L.
Mitsubishi Heavy Industries Ltd.
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