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    Method and apparatus for providing a plastic pipe part with a socket end
    2.
    发明公开
    Method and apparatus for providing a plastic pipe part with a socket end 失效
    用于提供塑料管件具有套筒的方法和装置。

    公开(公告)号：EP0092881A1

    公开(公告)日：1983-11-02

    申请号：EP83200578.9

    申请日：1983-04-19

    申请人： WAVIN B.V.

    发明人： Irmer, Adolf

    IPC分类号： B29C57/02 ,  F16L47/06

    CPC分类号： B29C49/20 ,  B29C57/025 ,  B29C57/08 ,  B29C2049/2017 ,  Y10S425/028

    摘要： A plastic pipe part 1 is pushed across a head part 3 of a sealing sleeve 4, being supported by a support 8, thereby providing the plastic pipe part with a widened end 7. Subsequently the widened end is surrounded by an outer mould 11 with three successive widenings 12, 14, 15 and by means of a fluid pressure in the interior of the widened end 7 sealed by the head part 3, the widened end is provided with three socket end widenings 28, 22, 29.
    After removal of the support 8, the end portion of the socket end is inwardly rebent around the head part 3, thus forming a groove chamber 5 retaining the head part 3 of sealing sleeve 4. Pushing the plastic pipe part across the head part is facilitated by applying a fluid pressure.
    An apparatus for performing this method comprises an outer mould 5 with three successive mould widenings 12, 14, 15, a first mandrel 20, a second mandrel 21, a third mandrel 30, a fourth mandrel 31, a rebending member 26 and a supply conduit 10 for supplying a fluid under pressure in the space between outer mould 11 and the mandrels 30, 20, 21.