Dislocaltion ink transfer number connection printer

Abstract

The dislocation ink transfer number connection printer includes one number printer unit, which includes number cylinder, impressing cylinder and two ink transfer systems. Each of the ink transfer systems consists of ink supplier, color template roller and ink conveying roller, and the color template roller and the ink conveying roller have matched diameters. In each of the ink transfer systems, the ink conveying roller conveys ink to the number cylinder, and the diameter ratio between the number cylinder and the ink conveying roller in not integral number, and this makes it possible for each number to obtain enough ink supply to ensure the printing quality.

Description

technical field [0001] The invention relates to a wiring printing device for offset ink-transfer numbers for printing wiring numbers on valuable securities, especially banknotes. Background technique [0002] In order to provide the anti-counterfeiting level of securities, people use two colors, or even multiple colors to print the numbers on the securities. The different color areas on the numbers are divided along the axial direction of the number printing cylinder, and also along the circumference of the number printing cylinder. For the latter case, since the different color areas are divided on the same rotary surface of the number cylinder, the different color areas of the same number must be supplied with ink at fixed points to ensure the accuracy of the boundary. The existing fixed-point ink supply technology It has been realized by making the diameter of the number cylinder an integral multiple of the diameter of the ink transfer roller, so that although every point...

AI Technical Summary

Problems solved by technology

[0002] In order to provide the anti-counterfeiting level of securities, people use two colors, or even multiple colors to print the numbers on the securities. The different color areas on the numbers are divided along the axial direction of the number printing cylinder, and also along the circumference of the number printing cylinder. For the latter case, since the different color areas are divided on the same rotary surface of the number cylinder, the different color areas of the same number must be supplied with ink at fixed points to ensure the accuracy of the boundary. The existing fixed-point ink supply technology It has been realized by making the diameter of the number cylinder an integral multiple of the diameter of the ink transfer roller, so that although every point on the surface of the number cylinder corresponds to a certain point on the surface of the ink transfer roller, the accuracy of the ink supply is ensured. At the same time, it simplifies the ink transfer relationship between the two, which provides convenience for production and processing, but because a certain point on the number cylinder is supplied with ink by a fixed point on the surface of the ink transfer roller, during the printing process, In some areas on the surface of the number roller, it is inevitable that the ink supply is insufficient. Once this happens, it will directly affect the printing quality of securities, and even produce waste products

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