Method and device for detecting broken filaments of carbon fiber warp knitting fabric and storage medium

Abstract

The invention discloses a method and device for detecting broken filaments of a carbon fiber warp knitting fabric and a storage medium, and the method comprises the steps: converting an image into gray image data through a preset algorithm, carrying out the mean filtering processing, enabling the image to be smoother, enabling the black to become light and enabling the white to become deep after filtering in a black and white carbon fiber cloth cover region, namely, the gray values of the pixel points in the black area are increased; when the change exceeds a certain set range, selecting an exceeding area, screening out pixel points with the gray value difference larger than a preset offset, and forming a plurality of detection areas; removing a circulation structure area at the edge of a detection area through a preset erosion circle area, so that the characteristics of the cloth cover are clearer; re-screening out the detection area through detection, and judging whether the detection area is a broken filament area or not through the number of pixel points contained in each detection area. The online intelligent detection of the broken filaments on the carbon fiber cloth cover is realized through the electronic equipment, the detection precision is improved, and meanwhile, a large amount of manpower and material resources are saved.

Description

technical field [0001] The invention relates to the technical field of carbon fiber production, in particular to a fuzz detection method, device and storage medium of carbon fiber warp knitted fabrics. Background technique [0002] Carbon fiber not only has the inherent intrinsic characteristics of carbon materials, but also has the soft and processable characteristics of textile fibers. It is a new generation of reinforcing fibers and is often used as materials for aircraft, aviation and wind power blades. Carbon fiber is a kind of black flat yarn, which is brittle and easy to fluff; the production of carbon fiber sheet needs to impregnate the carbon fiber woven fabric with resin and then thermoset it. [0003] The carbon fiber warp-knitted fabric is woven with binding threads through the carbon fiber warp yarn and the glass fiber weft yarn, so that the carbon fiber warp yarn after fiber spreading is divided into multiple carbon fiber strands in the weft direction. On the ...

AI Technical Summary

Problems solved by technology

[0004] During the production and transportation of carbon fiber fabrics, the carbon fibers and the rollers rub against each other, which is easy to fluff and produce wool. If wool appears on the carbon fiber fabric, it will affect the strength and quality of the carbon fiber fabric.

Manual inspection is not suitable for production lines with a high degree of automation, and the detection rate is very low, so online inspection of fabrics is required during the production process

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