Methods and systems for setting the pressure of the cylinders of the printing press without requiring special targets

摘要

A method for setting the pressure of a printing station includes at least one cylinder, from acquired images of the printed area of the printed web. The method includes displacing the at least one cylinder in accordance with a pre-defined displacement scheme, and acquiring the acquired images of the web throughout the displacement of the at least one cylinder, for each of the at least one cylinder, determining according to the acquired images, a left side print distance and a right side print distance, and determining for the each of the at least one cylinder a left actuator working distance and a right actuator working distance for the left actuator and the right actuator, respectively, according to the left side print distance and according to the right side print distance.

主权项

1. A method for setting the pressure of a printing station, including at least one cylinder, of a printing press, from acquired images of printed areas of the printed web, the method comprising the procedures of:
displacing said at least one cylinder of said printing station in accordance with a pre-defined displacement scheme comprising a plurality of displacements; for each displacement in said pre-defined displacement scheme, acquiring a respective image of a respective one of said printed areas; after acquiring at least a plurality of images of said printed areas respective of a plurality of said displacements of said pre-defined displacement scheme, determining for each of said at least one cylinder, a left side print distance and a right side print distance, at which said printing station prints, at a predetermined sufficient print quality, according to a plurality of said of said at least a plurality of said acquired images of said printed areas respective of different displacements of said displacements of said pre-defined displacement scheme; and determining for said each of said at least one cylinder a left actuator working distance and a right actuator working distance for the left actuator and the right actuator, respectively, of said each of said at least one cylinder, according to said left side print distance and according to said right side print distance.