A kind of dynamic and fast measuring device and method of textile yarn diameter

Abstract

The invention relates to a dynamic textile yarn diameter rapid-measuring device and method. The device comprises a box body, a yarn tension controller, a control cabinet, a lighting source, an image acquiring device and a computer. According to the method, a detecting point neighborhood length subimage is captured to serve as a process object, and the subimage is rapidly divided into a yarn body area, a yarn body suspicious area and a background area according to the gray scale projection curve distribution characteristics of the subimage; a classifier is established with the grey scale characteristics of pixels of the yarn body suspicious area and the direction connectivity between the yarn body suspicious area and the yarn body area as the constraint condition, and the classifier is used for classifying the pixels of the yarn body suspicious area to extract a complete yarn body image area; the average value of the diameters of all yarn detecting point axial neighborhood length location points serves as the diameter of the yarn at the detecting point. By establishing a detecting point and image serial number address mapping table, automatic batch processing of image sequences of moving yarn captured continuously is achieved. The dynamic textile yarn diameter rapid-measuring device and method can achieve rapid detection of diameters of all detecting points of yarn with a preset length automatically.

Description

technical field [0001] The invention relates to the technical field of digitalized intelligent textiles, in particular to a dynamic and fast measuring device and method for the diameter of textile yarns. Background technique [0002] The fineness of the yarn is one of the main parameters of the fabric structure and a main indicator for evaluating the shape of the yarn. Yarn diameter is a direct indicator to describe the fineness of yarn. Accurate and rapid determination of yarn diameter is an engineering-significant task in the textile industry. Yarn is a process product of textile enterprises. Its diameter is closely related to the textile process. It is the basis for determining process parameters such as yarn clearing board spacing in the spinning process design. It is also the basis for designing textile production processes, calculating fabric tightness and Thickness, one of the important parameters for predicting fabric handle and style. Through the detection and ana...

AI Technical Summary

Problems solved by technology

However, because yarn and other textile materials have their inherent characteristics, that is, the diameter of the same yarn varies greatly in different positions, and the cross-sectional shape is irregular, and the statistics and analysis of large sample diameters of yarns need to increase heavy testing work.

Especially during the testing process, the yarn hairiness and the yarn body are difficult to distinguish, which brings greater difficulties to the testing work

At present, various methods of statically testing yarn diameters that have been used for a long time at home and abroad have been difficult to meet the actual needs of production, especially through visual identification and manual measurement under artificial conditions. The test standards are inconsistent, resulting in artificial measurement errors and The measurement efficiency is low, and it can no longer meet the needs of modern production and scientific research development

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