AN ADAPTIVE SPECTRAL COMPENSATION ALGORITHM FOR AVOIDING FLEXURAL VIBRATION OF PRINTING CYLINDERS
✍ Scribed by M. Hermanski; K.-U. Kohn; H. Ostholt
- Publisher
- Elsevier Science
- Year
- 1995
- Tongue
- English
- Weight
- 378 KB
- Volume
- 187
- Category
- Article
- ISSN
- 0022-460X
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✦ Synopsis
Flexo printing is a modern technique for multi-colour printing of foil and paper. During the printing process the colour is transmitted from the cliche´mounted on a rotating cylinder to the passing foil. It has been known for a long time that under operating conditions stripes of variable intensity occur perpendicular to the direction of printing. In this paper the sources of vibration which cause such stripes are described. These vibrations are quasi-stationary, and non-harmonic and vary with different operation conditions. Techniques for compensating the vibration of the cylinders, in particular with active actuators, were investigated at the Laboratory of Sound and Structural Analysis at the Fachhochschule Bielefeld. The present paper surveys this project.