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    Injection molding apparatus having degating and sprue removal means
    51.
    发明授权
    Injection molding apparatus having degating and sprue removal means 失效
    注射成型设备具有降解和脱脂手段

    公开(公告)号：US3947210A

    公开(公告)日：1976-03-30

    申请号：US370628

    申请日：1973-06-18

    申请人： Solomon Levites

    发明人： Solomon Levites

    IPC分类号： B29C45/33 ,  B29C45/38 ,  B29F1/00

    CPC分类号： B29C45/33 ,  B29C45/38 ,  B29C2045/388 ,  Y10S425/051

    摘要： Apparatus for injection molding parts which comprises forming mold cavities from a set of molds and injecting molding material into the cavities to mold a part on a pin extending up in each cavity; the molded parts are then ejected by being pushed up and off the pins when the molds are moved to expose the parts; ejection involves the application of a substantially uniform force over the base of the moulded part. The apparatus includes means for automatically degating moulded parts from waste material involving initial movement of one of the molds in the set relative to the others; automatic degating can be employed which can occur internally or externally of the molded parts; the molds employed with these specific ejecting and degating means, or with other ejecting and degating means, comprise an upper and lower portion of a universal mold base which forms an integral part of the molding apparatus and to these portions are detachably secured modular mold sections.

    Mold coupling for sole injecting machines
    52.
    发明授权
    Mold coupling for sole injecting machines 失效
    用于全自动注塑机的模具联接

    公开(公告)号：US3608151A

    公开(公告)日：1971-09-28

    申请号：US3608151D

    申请日：1969-07-28

    申请人： NEW ENGLAND MERCHANTS NATIONAL

    发明人： CLOUTIER OSCAR H ,  HUBER ERNEST F JR ,  INGVES WALLACE W

    IPC分类号： B29C45/27 ,  B29C45/38 ,  B29D35/00 ,  B29F1/00

    CPC分类号： B29D35/0018 ,  A43B1/0027 ,  B29C45/2725 ,  B29C45/38

    摘要： A SHOE BOTTOMING MACHINE HAVING A DIVIDED MOLD RING WITH INTERFACE GROOVES BETWEEN ITS HALVES TO FORM AN INJECTING SPRUE, SO ARRANGED THAT A BLOCK ON A PLASTICIZING PUMP FOR FORCING ELASTOMER INTO THE MOLD RING IS RELEASABLY ENGAGED TO FORM A COUPLING WITH KEYS ON THE MOLD RING HALVES WHENEVER THEY ARE BROUGH TOGETHER TO FORM A MOLDING CAVITY. THE KEYS ARE SUPPORTED ON PARTS OF A TWO-PART CARRIER AND THE BLOCK IS CONNECTED THROUGH A DISTRIBUTING MANIFOLD BETWEEN THE PUMP AND THE BLOCK IN A MANNER TO ENABLE RELEASE OF A SPRUE PLUG WHILE ATTACHED TO A MOLDED SHOE BOTTOM FROM THE MOLD RING WHEN THE MOLD RING PARTS ARE SEPARATED.

    Injection molding machines
    53.
    发明授权
    Injection molding machines 失效

    公开(公告)号：US3606642A

    公开(公告)日：1971-09-21

    申请号：US3606642D

    申请日：1969-07-01

    申请人： DACO MACHINENFABRIEK NV

    发明人： RYCK PETRUS ROBERT DE

    IPC分类号： B29D35/00 ,  B29C41/00 ,  B29C45/00 ,  B29C45/16 ,  B29C45/27 ,  B29C45/38 ,  B29C45/40 ,  B29F1/12

    CPC分类号： B29C45/2701 ,  B29C45/1615 ,  B29C45/38 ,  Y10S425/051

    摘要： AN INJECTION MOLDING APPARATUS COMPRISING, FOR EACH MOLD, A DISPLACEABLE COUPLING MEMBER FOR CONNECTING THE INJECTION HEAD TO THE MOLD. THE COUPLING MEMBER IS PROVIDED WITH TWO OPPOSITE CAVITIES WHICH FIT RESPECTIVELY ONTO THE INJECTION HEAD AND THE CONICAL EXTREMITY OF THE PART CONTAINING THE INJECTION CHANNEL FOR THE MOLD. THE CAVITIES ARE INTERCONNECTED BY A CONICAL CHANNEL THE OPEN-

    ING OF WHICH IS NARROWER ON THE INJECTION HEAD SIDE. IN THIS MANNER, AFTER THE COUPLING MEMBER HAS BEEN DISPLACED, THE MOLDING BEAD PRESENTS AN OUTER EXTREMITY OF A CERTAIN LENGTH WHICH CAN BE EASILY GRABBED BY A PLIER-LIKE EXTRACTOR DEVICE.