A Digitally Variable Gravure Plate Roller

Abstract

The invention discloses a digital changeable intaglio roll. The digital changeable intaglio roll structurally comprises a cylindrical roller, a curved face PCB, a piezoelectric ceramic layer and an outer metal layer in sequence from inside to outside. The curved face PCB is connected with piezoelectric ceramic of the piezoelectric ceramic layer through an upper computer, and ink cell data and control instructions of the upper computer are transmitted to the piezoelectric ceramic. The piezoelectric ceramic is evenly distributed on the surface of the intaglio roll, and the structure with protrusions is formed. Holes cut into a matrix shape are formed in the outer metal layer and combined with the protruding piezoelectric ceramic in an embedded manner, so that the surface of the outer metal layer is flush with the surface of the piezoelectric ceramic. The piezoelectric ceramic deforms to different degrees under the action of the ink cell data and control instructions transmitted by the curved face PCB, ink cells different in depth are formed, and therefore the depth of the ink cells is controlled according to the shade of grey of an original manuscript, and the aim of repeated utilization is achieved. When worn, only the outer metal layer needs to be replaced, and the inner structure can still be repeatedly utilized.

Description

technical field [0001] The invention belongs to the technical field of gravure printing, and relates to a gravure plate roll, in particular to a digital variable gravure plate roll with variable cell depth and reusability. Background technique [0002] As a kind of printing process, gravure printing relies on the depth of the concave surface of the printing plate to express the level of the image. Due to the different depths of the depressions in the graphic part of the printing plate, the amount of ink filled in the mesh holes is more or less, and the ink layer transferred to the substrate can be thick or thin, so that the shades of the original manuscript can be reproduced on the printed matter. The gravure printing products obtained in this way have the advantages of thick ink layer, strong three-dimensional effect, rich layers, high precision and good texture. In addition, gravure printing has a wide range of applications, can be printed on a variety of substrates, has ...

AI Technical Summary

Problems solved by technology

Of course, gravure printing also has limitations. For example, the traditional photogravure plate-making technology is complicated, the plate-making cost is high, and the cycle is long. It is not suitable for printing a small number of diversified printed matters.

These deficiencies have seriously hindered the development of gravure printing

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