ANTI-BOUNCE PRINT DECK FOR FLEXOGRAPHIC PRINTING PRESS
A device and a method is disclosed to maintain plate and anilox mandrel position stability in print decks of a flexographic printing press. In one aspect, the mandrel bearings associated with at least one of the plate roll and the anilox roll are preloaded for the purpose of eliminating backlash and...
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Main Authors | , , , |
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Format | Patent |
Language | English Spanish |
Published |
09.12.2020
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Subjects | |
Online Access | Get full text |
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Summary: | A device and a method is disclosed to maintain plate and anilox mandrel position stability in print decks of a flexographic printing press. In one aspect, the mandrel bearings associated with at least one of the plate roll and the anilox roll are preloaded for the purpose of eliminating backlash and increasing the positional stiffness of the bearings, and thus the mandrel. In another aspect, the roll drive motor control system is enabled to provide a torque additive command the torque profile to maintain rotational consistency and otherwise overcome torque transients experienced by the motor during print bounce. Accordingly, the problem commonly referred to as print bounce and or print banding is alleviated.
Se describe un dispositivo y un método para mantener la estabilidad de posición del mandril de placa y anilox en plataformas de impresión de una prensa de impresión flexográfica; en un aspecto, los cojinetes del mandril asociados a al menos uno del rodillo de placa y el rodillo anilox se cargan previamente con el fin de eliminar el contragolpe y aumentar la rigidez posicional de los cojinetes y, por lo tanto, del mandril; en otro aspecto, el sistema de control del motor de accionamiento del rodillo está habilitado para proporcionar un comando aditivo de torque y el perfil de torque para mantener consistencia de rotación y superar de otro modo los transitorios de torque experimentados por el motor durante el rebote de impresión; por consiguiente, se mitiga el problema comúnmente denominado rebote de impresión y/o bandeado de impresión. |
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Bibliography: | Application Number: MX20200011613 |