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    APPARATUS AND METHOD FOR FLEXING A WEB
    5.
    发明公开
    APPARATUS AND METHOD FOR FLEXING A WEB 有权
    设备和方法通过弯曲铁路

    公开(公告)号：EP1727756A1

    公开(公告)日：2006-12-06

    申请号：EP05712077.6

    申请日：2005-01-26

    申请人： 3M Innovative Properties Company

    发明人： SWANSON, Ronald P.,

    IPC分类号： B65H23/022

    CPC分类号： B65H20/06 ,  B65H23/24 ,  B65H23/32 ,  B65H23/34 ,  B65H2301/3121 ,  B65H2406/32

    摘要： An apparatus and method for flexing a web (330) is disclosed. The web passes over two co-rotating members, such as rollers or belts (331, 312, 321, 322), which are separated by a small adjustable gap. The web travels around the first rotating member, is peeled off in the vicinity of the gap, bent back on itself in a small radius and reattached on the second co-rotating member. The location of the small radius is fixed with a closed loop control system sensing the radius location and controlling the relative velocity of the two members. Strain in the web is adjusted with the size of the small radius, which is controlled by the adjustable gap and radius location.

    WEB LATERAL STRETCHING APPARATUS
    6.
    发明公开
    WEB LATERAL STRETCHING APPARATUS 失效
    网横向拉伸装置

    公开(公告)号：EP0786428A1

    公开(公告)日：1997-07-30

    申请号：EP96926585.9

    申请日：1996-08-07

    申请人： NIPPON PETROCHEMICALS CO., LTD. ,  POLYMER PROCESSING RESEARCH INSTITUTE LIMITED

    发明人： KURIHARA, Kazuhiko ,  YAZAWA, Hiroshi ,  KUROIWA, Yuki ,  MURAKAMI, Shuichi

    IPC分类号： B65H23/022

    CPC分类号： B65H23/0258

    摘要： A web spreading apparatus for transversely spreading a web, such as a split web formed of a longitudinally uniaxially stretched film, includes a spreading means arranged in a travelling path of the web for transversely spreading the web. The spreading means comprises a curved rod-like member and projections arranged generally circumferentially about an axis of the curved rod-like member. The curved rod-like member is arranged so that the concave side is directed forward and the convex side is directed rearward, in the web travelling direction, and the projections are rotatable about the axis of the curved rod-like member at a speed higher than the travelling speed of the web. In one aspect, the curved rod-like member comprises a curved shaft and an outer tube arranged about the curved shaft and rotatable relative to the curved shaft, the projections being formed between the grooves cut on the outer tube. In another aspect, the projections are formed of a spring arranged about the curved rod-like member.

    摘要翻译： 用于横向铺展纤维网的纤维网铺展装置，例如由纵向单轴拉伸膜形成的分裂纤维网，包括布置在纤维网的行进路径中用于横向铺展纤维网的铺展装置。 扩散装置包括弯曲的杆状构件和突出部分，该弯曲的杆状构件的轴线周围大致沿周向布置。 弯曲的杆状构件被布置为使得凹入侧朝向前方并且凸出侧朝向腹板行进方向的后方，并且突起能够以大于弯曲杆状构件的轴线的方式围绕弯曲杆状构件的轴线旋转 网的行进速度。 在一个方面中，弯曲杆状构件包括弯曲轴和围绕弯曲轴布置且可相对于弯曲轴旋转的外管，所述突起形成在外管上切割的凹槽之间。 在另一方面，突起由围绕弯曲棒状构件布置的弹簧形成。

    APPARATUS AND METHOD FOR FLEXING A WEB
    10.
    发明授权
    APPARATUS AND METHOD FOR FLEXING A WEB 有权
    设备和方法通过弯曲铁路

    公开(公告)号：EP1727756B1

    公开(公告)日：2010-11-10

    申请号：EP05712077.6

    申请日：2005-01-26

    申请人： 3M Innovative Properties Company

    发明人： SWANSON, Ronald P.,

    IPC分类号： B65H23/022

    CPC分类号： B65H20/06 ,  B65H23/24 ,  B65H23/32 ,  B65H23/34 ,  B65H2301/3121 ,  B65H2406/32

    摘要： An apparatus and method for flexing a web (330) is disclosed. The web passes over two co-rotating members, such as rollers or belts (331, 312, 321, 322), which are separated by a small adjustable gap. The web travels around the first rotating member, is peeled off in the vicinity of the gap, bent back on itself in a small radius and reattached on the second co-rotating member. The location of the small radius is fixed with a closed loop control system sensing the radius location and controlling the relative velocity of the two members. Strain in the web is adjusted with the size of the small radius, which is controlled by the adjustable gap and radius location.