Automatic Method of On-line Detection and Control of Weft Slant of Cloth

Abstract

The invention discloses an automatic method for online detection and control of weft slant of cloth. Through the cloth type distinction process, the judgment of solid color cloth and pattern cloth is carried out, so as to extract the characteristic data of the current cloth correspondingly, and then compare with the database to obtain Cloth model, which is convenient for the whole weft control signal generation process to obtain the weft oblique requirement data corresponding to the current cloth model in the database according to the current cloth model. The model and / or weft skew requires data workload, which is suitable for the situation where different types of cloth are stitched together and continuously conveyed; while in the process of weft skew detection, the image of the area outside the cloth is shielded by judging the width boundary of the cloth. The substantive features and significant progress are conducive to better and more accurate detection of cloth weft skew data. The control method of this case is convenient for on-line cloth weft skew detection and the generation of the whole weft control signal, which is conducive to improving production efficiency and reducing labor costs.

Description

technical field [0001] The invention relates to the textile printing and dyeing industry, in particular to an automatic method for on-line detection and control of weft slant of cloth. Background technique [0002] There are various types of cloth, which can be divided into knitted cloth, woven cloth, lace cloth and so on. Woven and knitted fabrics can be woven into plaids, called plaids, or printed on them, called calicos. Regardless of plaid, lace, or printed cloth, you can see the pattern of patterns visually, collectively referred to as patterned cloth. If there is no pattern on it or the cloth is a single color, it is called solid color cloth. [0003] In addition to manually detecting the weft skew of the cloth and occasionally adjusting the weft manually, the current machine that performs this work is the "weft adjuster". There are several disadvantages in the current weft trimmer: [0004] 1. Within the cloth width range, only detect the weft skew in a few local ...

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Problems solved by technology

[0004] 1. Within the cloth width range, only detect the weft skew in a few local areas, and then use these local weft skews to replace the weft skew in the entire width, which has the problem of large errors;

[0005] 2. Most of the weft adjusters use photoelectric methods, and there is a problem that the range of weft inclination can be detected is narrow;

[0006] 3. The degree of automation of the weft adjustment process is not high enough. Every time the type of cloth on the line changes, it is necessary to manually reset the data required for the weft skew process

There are problems of untimely and wrong input of data manually, which directly affects the quality of cloth

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