Swage-forming of container threads
    3.
    发明授权
    Swage-forming of container threads 失效
    容器螺纹的成型

    公开(公告)号:US07138082B2

    公开(公告)日:2006-11-21

    申请号:US10329666

    申请日:2002-12-24

    IPC分类号: B29C49/00

    摘要: A method of making a plastic container having a threaded wide-mouth finish includes providing a preform having at least an exterior surface of molded polyester construction. The preform is placed in a mold cavity having a first portion for forming a container body, a second portion adjacent to the first portion for forming a cylindrical finish wall without threads, and a third portion adjacent to the second portion for forming a trim dome or moil. The preform is expanded within the mold cavity to form a one-piece intermediate product that includes a body, a cylindrical wide-mouth finish wall and a moil. After removing the intermediate product from the cavity, the moil is severed from the end of the finish wall. At least one thread is then formed on the finish wall by engaging the finish wall with at least one thread-forming tool, which may be heated to facilitate the forming operation.

    摘要翻译: 制造具有螺纹广口口罩的塑料容器的方法包括提供至少具有模制聚酯结构的外表面的预成型件。 将预成型件放置在具有用于形成容器主体的第一部分的模腔中,与第一部分相邻的第二部分,用于形成没有螺纹的圆柱形精加工壁,以及与第二部分相邻的第三部分,用于形成修整圆顶或 莫尔 预成型件在模具腔内膨胀以形成一体式中间产品,其包括主体,圆柱形广口整理壁和马蹄形。 从空腔中取出中间产品后,从完成壁的端部切断马蹄。 然后通过使精加工壁与至少一个螺纹成形工具接合而在精加工壁上形成至少一个螺纹,该螺纹成形工具可被加热以便于成形操作。