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Grey fabric flaw detecting instrument

A defect detection and textile technology, applied in the field of photoelectric measurement and testing instruments, can solve problems such as low detection efficiency, low detection quality, and high labor intensity, and achieve the effects of reducing labor intensity, simple structure, and significant economic and social benefits

Inactive Publication Date: 2007-10-03
YANGZHOU UNIV
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Problems solved by technology

[0003] The purpose of the present invention is to provide a textile gray cloth defect detector, which solves the current situation that the existing textile enterprises use artificial naked eyes to observe and inspect the existence of cloth under the irradiation of high-power fluorescent tubes, which has high labor intensity, low detection efficiency and low detection quality. , which is conducive to reducing the labor intensity of workers and improving the detection efficiency and quality of detection

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Embodiment Construction

[0015] The present invention is further described with reference to the accompanying drawings and embodiments. As shown in FIG. 1, the present invention is composed of a single-chip microcomputer, a signal conditioning unit, a comparison unit, a clock unit, an oscillation unit, an A / D conversion unit, a display unit and a regulated power supply; such as As shown in Figure 2, the voltage signals on the emitter resistors of each phototransistor connected in parallel are added by the adder OP07, and the phototransistor is used as a photosensitive sensor to form the front-end signal acquisition unit of the textile grey fabric defect detector. The function of the diode in Figure 2 can not only prevent the mutual influence of the signals from each other, but also ensure that only the signal with a certain amplitude (the threshold voltage of the diode) can be transmitted to the input end of the adder OP07, which ensures that there is no defect in the cloth section without defects. The...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract

The grey fabric flaw detecting instrument is one optoelectronic testing instrument for detecting grey fabric quality. The optoelectronic testing instrument is developed based on the operation principle of photoelectric colorimeter. Photosensitive transistor is used for the grey fabric flaw detection, and when grey fabric is made to pass by, the flaw will cause the light flux difference and thus current change in photosensitive transistor and the change in converted voltage. Different kinds of flaw cause different change in light flux, holes cause light flux increase and overlapping, oil strain, etc cause light flux decrease and fluctuation, so that the present invention can recognize flaw type automatically. The present invention has simple structure, high efficiency, capacity of recording and other advantages.

Description

technical field [0001] The invention relates to a textile grey fabric defect detector, which belongs to a photoelectric measuring instrument for detecting the quality of grey fabrics in the textile technology field. Background technique [0002] At present, textile enterprises that have high requirements on the quality of the cloth use manual inspection for common defects on the gray cloth, observe the defects such as missing stitches, yarn holes, skipped yarns, dirty and other defects of the gray cloth with the naked eye, and use high-power fluorescent tubes to illuminate the back of the cloth, 3 A worker sits in front of a light tube and stares intently at the flowing cloth, spotting defects by observing the light shining through the cloth. Once defects such as missing stitches are found, they will be recorded, and the cloth grade will be determined according to the number of defects, and serious defects will be stopped and marked or cut off. Inspection workers' eyes are ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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IPC IPC(8): G01N21/898D06H3/08
Inventor 王昌龙
Owner YANGZHOU UNIV
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