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    • 4. 发明专利
    • Printing machine and method of cutting web
    • 打印机和切纸方法
    • JP2013203500A
    • 2013-10-07
    • JP2012072412
    • 2012-03-27
    • Dainippon Printing Co Ltd大日本印刷株式会社
    • YAMASHITA TAKESHI
    • B65H45/28B41F13/56B41F33/06B41F33/14B65H35/04
    • PROBLEM TO BE SOLVED: To provide a printing machine and a method of cutting a web wherein variation in a length of a web path from a printing unit to a cutter cylinder or a sheet cutting part is computed based on detected information of a mark obtained by two detecting parts to enable computing of an amount of deviation in a cutting position of the web with high accuracy, whereby a cutting registering position can be adjusted automatically even when printing conditions change, and a printing loss can be reduced as conventional manual work is eliminated.SOLUTION: An amount of deviation in a cutting position of a web W by a cutter cylinder 30 is computed based on a detected phase p1 of the cutter cylinder 30 detected by a rotary encoder 60 when a mark M is detected by a first detecting part 50, a detected phase p2 of the cutter cylinder 30 detected by the rotary encoder 60 when the mark M is detected by a second detecting part 52, and each of reference phases p1', p2' stored in a storing part 56.
    • 要解决的问题:提供一种打印机和一种切割网的方法,其中基于由所获取的标记的检测信息来计算从打印单元到切割滚筒或切纸部的卷筒纸路径的长度的变化, 两个检测部件能够以高精度计算卷筒纸的切割位置的偏差量,从而即使当打印条件改变时也可以自动调整切割记录位置,并且可以减少传统手动工作时的打印损失 解决方案:当由第一检测部分检测到标记M时,基于由旋转编码器60检测到的切割器圆筒30的检测相位p1来计算由切割器滚筒30在幅材W的切割位置中的偏移量。 50,当由第二检测部分52检测到标记M时由旋转编码器60检测到的切割器圆筒30的检测相位p2以及存储在存储器中的每个参考相位p1',p2' 第56部分。