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1. 发明授权

US5371954A Method and apparatus for the guiding of fibre webs 失效
标题翻译：用于引导纤维网的方法和装置
公开(公告)号：US5371954A
公开(公告)日：1994-12-13
申请号：US992639
申请日：1992-12-18
申请人： Reinhard Pinter , Wolfgang Promitzer , Adolf Gopg
发明人： Reinhard Pinter , Wolfgang Promitzer , Adolf Gopg
IPC分类号： B65H20/12 , D21F3/10 , D21F5/04 , D21G9/00 , F26B13/16 , F26B13/30
CPC分类号： F26B13/16 , B65H20/12 , D21F3/10 , D21F5/042 , D21G9/0063
摘要： A process for the guiding of fibre web or the like, in particular for paper production, especially in paper driers, wherein the suction applied can be varied both in real time operation and along the axes of the one or more suction rolls that is/are present and which may be used in conjunction with at least one travelling screen or the like. The object is to make the start-up process for the treatment of fibre webs on suction rolls more convenient without too much equipmental and operational overhead, and to prevent shrinkage of the web by providing good location at the web in the edge regions. This is achieved by restricting the suction which acts on the inside of the roll jacket to a region of the roll jacket which comes into contact with a lead-in strip for the fibre web during start-up operation. This process is continued until a sufficient length of fibre web has passed over the suction roll for the web to have reached its full or final width on this suction roll. As the web width increases the suction spreads out to encompass the full width of the fibre web. The control of the vacuum within the compartments of the suction roll is preferably effected by means of valve discs provided on slide rods.
摘要翻译：用于引导纤维网等的方法，特别是用于纸张生产的方法，特别是在纸张干燥器中，其中所施加的吸力可以在实时操作和沿着一个或多个吸辊的轴线的方向上变化并且可以与至少一个行进屏幕等结合使用。目的是使启动过程在吸辊上处理纤维网更方便，没有太多的设备和操作开销，并且通过在边缘区域的网处提供良好的位置来防止卷材收缩。这是通过将作用在辊套的内部的吸力限制在辊套的与启动操作期间的纤维网的引入条接触的区域来实现的。该过程一直持续到纤维网的足够长度已经越过纸幅的吸辊以达到其在该抽吸辊上的完整或最终宽度。当腹板宽度增加时，吸力扩展到包围纤维网的整个宽度。优选地，通过设置在滑动杆上的阀盘来实现对抽吸辊的隔室内的真空的控制。

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