多色卷筒印刷套准精度及自动控制系统

System of Positive Registration of Multi-Color Web Printing

分析了多色卷筒印刷机在印刷过程中造成套准误差的原因 ,指出张力变化是导致套印不准的主要因素 ,提出了在高速印刷时通过张力变化得到套准误差补偿的新思路 ,并运用多步预测、反复滚动优化的复合预测方法 ,对印刷机自动套准控制系统进行了创新设计 .

This paper mainly analyses the factors and causes of multi color registration errors caused during Multi Color Web Press Printing(MCWP),and suggests that the slack or over tight web tension of the web is one of the most important factors which lead to mis registration. It points out a new thinking that ensures registration. Errors can be corrected through changing the web tension in the course of high speed printing. In addition, it recommends adopting Error Predication Improved Dynamic Matrix(EPIDM) control to exercise predication and feed back control over the automatic registration control system of MCWP. In this way, it carries out an innovatory design on some structures of positive registration of whole MCWP.