Glass fiber cloth cover black and grey detection method

Abstract

The invention discloses a glass fiber cloth cover black and grey detection method. The detection method comprises the following steps: firstly, collecting a picture of a glass fiber cloth cover; converting the color image data f into first grayscale image data g0; equally dividing the first grayscale image data g0 into m first areas g0m; performing filtering processing on the plurality of first areas in the picture through a preset template, and performing arrangement to obtain second grayscale image data gt; checking the ratio of the two pieces of grayscale image data and a preset standard, and screening out boundary points; and extracting all boundary points to further judge whether the boundary points are black gray. A color picture is subjected to gray processing and then is divided into multiple parts according to a preset width, the initial gray picture is divided according to the preset width and then is subjected to respective filtering processing, so that the screening result of a final black-gray area can be more accurate, and the gray values of the image before and after filtering processing are checked according to a preset standard to screen out boundary points. And whether the cloth surface is black gray is judged according to the continuity of the plurality of continuous boundary points in the coordinate system.

Description

technical field [0001] The invention relates to the technical field of carbon fiber production, in particular to a method for detecting black ash on a glass fiber cloth surface. Background technique [0002] In the production process of composite materials, the glass fiber is impregnated with the resin together with the carbon fiber and then sent to the curing oven for thermosetting molding. During the transportation of the glass fiber cloth, black ash will appear on the glass fiber cloth surface. It will affect the quality of the final molding composite material, and the black ash on the glass fiber cloth surface cannot meet the quality requirements in the production process. [0003] The black ash on the glass fiber cloth surface is difficult to rely on manual detection, which is not suitable for composite material production lines with a high degree of automation. Manual detection of the black ash falling on the glass fiber cloth surface during the transportation process ...

AI Technical Summary

Problems solved by technology

[0002] In the production process of composite materials, the glass fiber is impregnated with the resin together with the carbon fiber and then sent to the curing oven for thermosetting molding. During the transportation of the glass fiber cloth, black ash will appear on the glass fiber cloth surface. It will affect the quality of the final molding composite material, and the black ash on the glass fiber cloth surface cannot meet the quality requirements in the production process

[0003] The black ash on the glass fiber cloth surface is difficult to rely on manual detection, which is not suitable for composite material production lines with a high degree of automation. Manual detection of the black ash falling on the glass fiber cloth surface during the transportation process not only has a low detection rate , and not suitable for composite material production lines with a high degree of automation

Images