Manufacture method for roller coating color plate

Abstract

The invention provides a manufacture method for a roller coating color plate. Corona treatment is carried out on a steel band surface before roller coating a section, a plurality of small concave pits are formed in the surface of the steel band, the surface coarseness of the steel band surface is improved, thus the adhesion force of a color layer and the steel band surface is improved, the phenomenon of paint removal of the color layer is enabled not easy to occur, and the shaping performance of the steel band is improved. Additionally, according to a control method for a roller coating production line provided by the invention, by calculating and controlling a theoretical roller face line speed and an actual roller face line speed of each roller in a roller coating set, the rotation speed of each roller is in accordance with a technical speed, and thus the production efficiency is improved; and meanwhile, according to a secret code identification technology, a dislocation distance of patterns printed by many times is calculated, the rotation speed of each roller is adjusted, the patterns in multi-color printing are enabled to be vivid and complete, and the printing length of the patterns is prolonged.

Description

technical field [0001] The invention relates to a production method for roller coating and printing color steel plates, belonging to the field of color steel plate manufacturing. Background technique [0002] Color-coated steel plate (commonly known as color-coated steel plate) refers to the metal base material that is firstly degreased by the continuous unit and subjected to surface passivation and other pre-coating treatments, and then passes through a color-coated printing machine to coat the surface with a Composite material formed after one or more layers of organic paint. [0003] In order to apply multi-color patterns, most coating production lines need to change the color of the paint several times a day. Two finishing coaters are installed in the position, among which No. 1 is the upper single-head coating machine, and No. 2 is the double-sided coating machine. However, in the color steel plate production line formed by this kind, there is a lack of a positio...

AI Technical Summary

Problems solved by technology

[0005] However, the applicant found in the process of using the above-mentioned gravure printing machine that the surface speed of the coating roller and the suction roller is often not consistent with the process speed of the entire production line Inconsistency, and the entire production line lacks a control system for online adjustment of the rotational speed of the suction roller and the coating roller, resulting in frequent stoppage adjustments after the entire production line has been running for a period of time, thus affecting the efficiency of the entire production line; and If the adjustment is not stopped, the speed of conveying the steel strip will be inconsistent with the surface speed of each roller, which often leads to the inability to transfer the steel strip according to the predetermined position; in addition, in order to print multi-color patterns, it is often necessary Several groups of roller coating units work together, but the above-mentioned gravure printing machine in the prior art lacks a control system that enables continuous production of adjacent roller coating units, that is, the staff needs to observe whether the first roller coating unit has been One color coating is completed, and after the coating is confirmed, the adjacent roller coating units are manually started, so that continuous production cannot be achieved between adjacent roller coating units; at the same time, due to the lack The control system that adjusts the rotation speed, so that it is impossible to correct the error when the pattern printed by the adjacent roller coating unit is misaligned

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