Reed quality detection device based on machine vision

Abstract

The invention belongs to the field of textile automatic detection and relates to a reed quality detection device based on machine vision. The device comprises a horizontal guide rail, a camera, an industrial personal computer, light sources, a camera obscura, sliding rollers, driving rollers, a pressure roller and an air-blowing pipe, wherein the camera obscura is arranged on the upper surface ofthe horizontal guide rail, the driving rollers are arranged inside the camera obscura and connected with a motor, and the driving rollers are driven by the motor to rotate; the pressure roller is arranged over the driving rollers, and a gap exists between each driving roller and the pressure roller; the camera is fixed inside the camera obscura, and the light sources are fixed to the two sides ofthe camera and used for providing luminance required by the camera during image shooting; the air-blowing pipe is fixed at the position between the camera and the pressure roller and blows air vertically downwards in the reed detection process, so that dust on a reed is removed on the one hand, and it is convenient to detect the loose reed; and a lens of the camera is arranged vertically downwardsto shoot an image of the to-be-detected reed which moves on a plane through the sliding rollers. According to the device, machine vision is adopted to replace human eyes to realize reed quality detection, so that speed is high, and precision is high.

Description

technical field [0001] The invention belongs to the field of textile automatic detection and relates to a reed quality detection device based on machine vision. Background technique [0002] Steel reed is one of the key equipment of textile and weaving equipment. Its function is to drive the weft yarn into the weaving mouth during the weaving process, and arrange the warp and weft yarns according to certain rules and densities, so that the fabric can reach the specified weft density and width. equipment. With the rapid development of high-speed, wide-width and serialization of looms and looms, the speed of air-jet looms can be opened at 900r / min. Under such high-frequency friction and external forces caused by severe beating-up, the reed blades will wear out. Seriously, the spacing between reed teeth varies greatly. If there is a big difference in the distribution of the reed tooth spacing, the original reed number will be changed in severe cases, resulting in defects such...

AI Technical Summary

Problems solved by technology

However, the photosensitive, air pressure and laser beam measurement used by this device are too complicated and costly, so it is not suitable for wide application in the market

[0006] As mentioned above, some of the current automatic detection methods for the total number of reed teeth are based on photoelectric and pressure sensors. Although this method has a simple structure and relatively low hardware cost, it cannot obtain accurate data to realize the distance between reed teeth. Measurement

Some patented technologies use the comprehensive application of various equipment such as photosensitive, air pressure and laser beam measurement. Although accurate data can be obtained to realize the measurement of the distance between reed teeth, the operation process is too complicated and the cost is high. Market-Fit Applications

None of the above methods can give a detailed reed quality detection method and device that not only considers the cost, but also can efficiently and accurately detect the total number of reed teeth and the distribution of reed teeth spacing. The present invention provides a machine-based Visual reed quality inspection device can accurately detect the total number of reed teeth and the distribution of reed teeth spacing

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