Printed pattern and embossed pattern registration control system
    1.
    发明授权
    Printed pattern and embossed pattern registration control system 失效
    印刷图案和压花图案注册控制系统

    公开(公告)号:US3915090A

    公开(公告)日:1975-10-28

    申请号:US52357374

    申请日:1974-11-14

    Abstract: A system is disclosed for securing registration of a patterned embossing roll with a similarly patterned printed moving web. The purpose of the embossing roll is to indent the surface of the printed web in register with the printing in certain designated areas. In one embodiment, a series of randomly spaced register marks on the printed web selvage edge and identically spaced register marks on the embossing roll are viewed by appropriate scanners. Electrical signatures representing the two sets of register marks are generated by the sensors and fed to a signal correlator for comparison. The correlator determines the degree of statistical error between the two signatures and displays this error in the form of a time delay on a CRT (Cathode Ray Tube). If manual registration control is desired, an operator can manually adjust the speed or phase of the embossing roll by observing the peaked wave display on the CRT to bring the roll into a statistical best fit of the embossing pattern with the printed pattern. Automatic control of embossing roll speed and orientation to achieve registration is also possible if the correlator is interfaced with a digital computer and servo correction motors on the embosser drive system. The disclosed system is an improvement over conventional benchmark oriented registration sensing and control systems in that it is capable of continuous error determinations and asynchronous error corrections on demand rather than periodically at the end of pattern length intervals.

    Abstract translation: 公开了一种用于确保具有相似图案的印刷移动网的图案化压花辊的配准的系统。 压印辊的目的是在某些指定区域中缩印印刷的卷筒纸的表面与印刷对齐。 在一个实施例中,通过合适的扫描仪观察印刷的幅面边缘上的一系列随机间隔的对准标记和压印辊上相同间隔的对准标记。 表示两组寄存器标记的电子签名由传感器产生并馈送到信号相关器进行比较。 相关器确定两个签名之间的统计误差的程度,并以CRT(阴极射线管)上的延时形式显示该错误。 如果需要手动对准控制,则操作者可以通过观察CRT上的峰值波形显示器来手动调节压花卷的速度或相位,使滚筒成为压印图案与印刷图案的统计最佳匹配。 如果相关器与打印机驱动系统上的数字计算机和伺服校正电机接口,则自动控制压花辊速度和取向以实现对准也是可能的。 所公开的系统是相对于常规的基准定向注册感测和控制系统的改进,因为它能够在需求上而不是在模式长度间隔结束时周期性地进行连续的错误确定和异步错误校正。

    Pattern repeat length control system
    2.
    发明授权
    Pattern repeat length control system 失效
    图案重复长度控制系统

    公开(公告)号:US3694634A

    公开(公告)日:1972-09-26

    申请号:US3694634D

    申请日:1971-08-16

    CPC classification number: B65H23/1882

    Abstract: Digital inputs are fed to a programmed digital computer for a precise measurement and calculation of key line-speed parameters. The ratio of the web infeed speed measured at a point upstream of all processing actions relative to the embossing roll speed is the controlled variable. Digital speed recorders measure the web infeed speed and the embossing roll speed. The relationship between these two is automatically manipulated by the digital computer which reflect the process dynamics and describe the desired system response.

    Abstract translation: 数字输入被馈送到编程的数字计算机以精确测量和计算关键的线速度参数。 在所有处理动作相对于压花辊速度的上游点测量的纸幅进给速度的比率是受控变量。 数字速度记录仪测量纸幅进给速度和压花辊速度。 这两者之间的关系由反映过程动力学并描述所需系统响应的数字计算机自动操纵。

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