Drum-type printing machine with multicolor overprinting and accurate positioning functions

By introducing a positioning mechanism into the roller printing machine, precise positioning and uniform clamping of the rollers are achieved, solving the problem of multi-color printing misregistration and improving printing accuracy and winding quality.

CN224276603UActive Publication Date: 2026-05-26JIANZHA SANGQIN TENT MANUFACTURING CO LTD
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Patent Information

Application Number
CN202521111088.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-06-03
Publication Date
2026-05-26
Estimated Expiration
2035-06-03

AI Technical Summary

Technical Problem

Existing roller printing machines suffer from registration deviations during multi-color printing, leading to a decrease in printing accuracy and product quality. Furthermore, traditional winding operations rely on manual labor, making it difficult to achieve precise positioning and maintain uneven material tension.

Method used

The positioning mechanism, including an arc-shaped fixing block, a ferrule, a roller, an inner support assembly, and a drive assembly, uses a cylinder to drive the clamping components to achieve precise positioning and uniform clamping of the roller, ensuring the stability and tension consistency of the material during the winding process.

Benefits of technology

It improves the precise positioning capability of multi-color overprinting, avoids roller displacement and tilting, and enhances printing accuracy and winding quality.

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Abstract

The utility model provides a multi-color overprinting accurate positioning drum-type printing machine, which belongs to the technical field of printing and comprises a printing machine main body, an operating platform and supporting legs fixedly mounted at the bottom of the operating platform. The positioning mechanism comprises an arc-shaped fixing block fixedly installed on the outer surface of the supporting leg, a clamping sleeve movably connected with the inner surface of the arc-shaped fixing block, a roller arranged on the outer surface of the clamping sleeve in a sleeving mode and an inner supporting assembly arranged on the outer surface of the supporting leg and used for fixing the roller. And the driving assembly is arranged on one side of the inner supporting assembly and used for rotationally collecting the printed paper sheets. According to the utility model, all parts of the positioning mechanism are matched with one another, so that the accuracy of the material loading position each time can be ensured, the uniform and stable clamping force distribution is realized through the driving of the air cylinder, and the displacement or inclination of the roller caused by inaccurate manual adjustment is avoided; and meanwhile, the consistency of tension and the stable rotating speed of the material in the winding process are guaranteed, and the printing precision and the winding quality are improved.
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