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公开(公告)号:US5813337A
公开(公告)日:1998-09-29
申请号:US658279
申请日:1996-06-05
CPC分类号: B65H23/0216 , B65H2301/4148 , B65H2553/42
摘要: A system for controlling the lateral position of a web in a web-fed printing press having a printing unit. The web has a series of printed images thereon. The system includes an optical scanner for sensing the lateral position of an image on the web and for generating a first signal. The system also includes an edge sensor which senses the lateral position of a corresponding web edge and which generates a second signal. A controller processes the first and second signals to produce a control signal. The systems also includes a positioning means responsive to the control signal for laterally positioning the web.
摘要翻译: 一种用于在具有印刷单元的卷筒纸式印刷机中控制幅材的横向位置的系统。 网上有一系列印刷图像。 该系统包括用于感测幅材上的图像的横向位置并用于产生第一信号的光学扫描器。 该系统还包括边缘传感器,其感测相应腹板边缘的横向位置,并产生第二信号。 控制器处理第一和第二信号以产生控制信号。 系统还包括响应于控制信号的定位装置以横向定位纸幅。