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Development and application of multiple functions of evenness tester

Development and application of multiple functions of evenness tester

Development and application of multiple functions of evenness tester
 
In the production of woollen knitting wool, most of the defects of the finished yarn come from the carding machine. For this reason, it is necessary to implement online inspection of the roving on the carding machine. The article introduces the principle, function and role of the line dry detection system, and The factory application example described the monitored roving count unevenness curve, and also the thermal stability of the instrument was tested. The results show that the roving has good practical performance in the line dry detector and can be promoted in the production of roving knitting yarn use.
 
Evenness tester
In many spinning mills, not only there is no large-capacity cotton fiber tester and single fiber tester, but also no 100,000 m yarn defect tester. After long-term tracking of some domestic spinning mills, we found the spinning mills that have these instruments. Only 10%. The quality control of many spinning mills almost only revolves around a few simple indicators of cotton yarn evenness, details, thick knots, and neps. The technicians and managers of these spinning mills don’t even understand what harmful small yarn defects are. . Although there is only a simple evenness tester, there are several changes in the quality index of the test in details, thick knots, and neps. These are -30%, -40% of details, and +35% of coarseness. Knots and +140% neps all reflect the existence of a large number of fine yarn defects. The analysis and control of these test quality indicators have a great effect on the control of fine yarn defects.
 
Some powerful textile manufacturers will also have large-capacity cotton fiber tester, single fiber tester, evenness tester, high-speed strength tester, 100,000 m yarn defect tester, etc. If the different cotton, sliver, cotton yarn, and fabric quality control indicators tested by these test instruments are organically combined to establish corresponding control standards, it can ensure the long-term stability of small yarn defects. Under normal circumstances, the better the quality control index of cotton and sliver tested by the single fiber tester, the -30%, -40% details, +35% thick knots, and +140% neps tested by the sliver tester. The smaller the number of fine yarn defects A0, A1, A2, B0, B1, B2, C0, C1, H0, and H1 tested by the 100,000 m yarn defect tester is, the less it can be seen that the three types of testers have different test objects. , But the spinning quality law reflected by the test results tends to be consistent. At the same time, sliver quality, bobbin yarn quality, cheese yarn quality, and fabric quality respond to harmful fibers and harmful defects in a consistent and regular manner.
 
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