Non-defect elimination method and device for intelligent detection of surface defects of gravure plate roller

Abstract

The invention provides a non-defect elimination method and device for intelligent detection of surface defects of gravure plate rollers. The method is as follows: wipe the surface to be detected of the plate roller, then scan the surface to be detected for the first time, and then scan the surface to be detected again. Wipe the surface to be detected of the plate roller, and then perform a second scan on the surface to be detected, calculate the displacement value of the suspected defect in the two scans, and compare the displacement value with the set threshold value to calculate the displacement value Suspected defects that are too large are marked as non-defects. The invention solves the technical problem that has not been solved for a long time in the prior art through a simple method, enables automatic plate roll detection, improves work efficiency, and reduces labor intensity.

Description

technical field [0001] The invention relates to an intelligent detection method for surface defects of a gravure plate roller, in particular to a method for eliminating non-defects therein. Background technique [0002] During the plate making process of the gravure plate roller, it is necessary to check the surface of the plate roller many times for defects, such as blisters, bubbles, scratches, etc. After defects are found, secondary repairs are required to ensure that the surface of the plate roller is clean and smooth, otherwise the quality of plate making will be affected. [0003] At present, the inspection of the above-mentioned defects mainly relies on manual visual inspection, that is, under the light, the worker wipes the surface of the plate roller with gloved hands, and wipes small pieces, looking for defects in the wiping area. If defects are found, use A marker pen marks next to the defect. Generally, it takes 5 minutes to inspect a plate roll with a length o...

AI Technical Summary

Problems solved by technology

Generally, it takes 5 minutes to check a plate roll with a length of 1200mm and a diameter of 300-400mm. There are dozens to hundreds of rolls in a shift to be inspected. The labor intensity is very high, and it will damage the eyesight of workers to a certain extent.

[0004] In addition, the existing manual inspection methods are affected by human factors, and missing defects are inevitable, which has a great adverse effect on the quality and cost of plate making

When laser engraving the plate roll, the engraving head is often damaged, causing unnecessary economic losses and time loss caused by rework to the enterprise

[0005] However, if smart equipment is to be used instead of labor to detect surface defects of gravure plate rollers, due to the limited intelligence of smart equipment, many suspected defects will be marked as real defects, resulting in unreliable results and unable to be applied and promoted.

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