ALIGNED PASTING OF A NEW ROLL OF SUBSTRATE TO AN EXPIRING ROLL OF SUBSTRATE IN A PRINTING PRESS

摘要

Systems and methods for aligning preprinted images on a roll of substrate to the moving components of a web press are disclosed. A method in accordance with one embodiment includes determining the speed of the moving components of the press, determining the speed of the web of preprinted images and adjusting the speed of the web of preprinted image to match the speed of the web. In particular embodiments, a press which produces rolls of preprinted material can be modified to change the equivalent cutoff length of the press. In further embodiments, a method of pasting new rolls of material to expiring rolls of material is accomplished by modulating the drive speed of the new roll of material to match the expiring roll of material while at the same time aligning the images on the new roll with the expiring roll.

主权项

1. A printing press comprising:
an expiring roll of high quality preprinted substrate comprising preprinted images with an equivalent cutoff; and a web created by threading said expiring roll into the press; and a new roll of high quality preprinted substrate comprising preprinted images with the equivalent cutoff; said new roll to be pasted to said expiring roll; and an Aligned Paste System (APS) installed in the printing press for controlling a pasting operation, the APS comprising:
a new roll belt drive encoder; anda sensor suite capable of sensing an expiring roll speed and a new roll speed; anda computing device for receiving signals from the sensor suite and controlling the new roll speed so that when a pasting of the new roll to the expiring roll occurs, the new roll images are aligned to the expiring roll images.