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    • 1. 发明授权
    • Method and apparatus for controlling web delivery running at the start time of printing
    • 用于控制在打印开始时运行的纸张传送的方法和装置
    • US06176410B1
    • 2001-01-23
    • US09294622
    • 1999-04-19
    • Yoshio UedaHitoshi HiroseNorifumi TasakaMasakazu Akatsuka
    • Yoshio UedaHitoshi HiroseNorifumi TasakaMasakazu Akatsuka
    • B65H2318
    • B41J15/16
    • Drag rollers disposed in a region from the paper feed side to the paper discharge side of a printing machine are driven one after another from the paper feed side with torque control, by which the slack of a web is removed successively from the upstream side of a web delivery running path. Also, a plurality of tension sensors for detecting a tension of a web between a feeder and a feed drag roller and between drag rollers disposed in a region from the paper feed side to the paper discharge side of a printing machine are provided, and a controller to which a tension detection signal from the plurality of tension sensors is supplied as a control signal is provided, by which slack of the web is removed and a predetermined preliminary tension is given to the web successively from the upstream side of a web running path by driving each drag roller with torque control based on the control signal from the controller at the start time of printing, and thereafter the driving of the drag roller at a location where the slack of the web has been removed is switched to speed control successively.
    • 布置在从进纸侧到印刷机的排纸侧的区域中的拖拉辊由转矩控制从进纸侧一个接一个地驱动,通过该拖拉滚筒从纸张的上游侧依次去除幅材的松弛 网络传送运行路径。 另外,设置有多个用于检测馈送器和进给拖拉辊之间的卷筒纸张力的张力传感器,以及布置在从打印机的进纸侧到出纸侧的区域中的拖拉辊之间的控制器 提供来自多个张力传感器的张力检测信号作为控制信号的位置,通过其从纸幅运行路径的上游侧连续地去除纸幅的松弛并且预定的预张力从纸幅运行路径的上游侧被给予预定的预张力 在打印开始时基于来自控制器的控制信号,对每个牵引辊进行转矩控制,然后连续地切换到卷筒纸的松弛部位的拖拉辊的驱动。