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Frequency warping constant tension control system

. Volume detection device used by the electric deflection device. Four J ¨ Textile Science and Technology 2000 6 3 control system microcontroller hardware design warping machine constant tension system block diagram shown in Figure 2 of the 8951 microcontroller as the core system with 4 drive jack ∞ M curing system program. By EEPR01 ', ~ 6C46 Zi as erasable writing of the information carrier, to store the whole machine of the process parameters, such as yarn count, the line speed V, tension machine group 2 J MCU control the whole machine constant tension system block diagram, cylinder diameter D, the winding thickness. To be adjusted according to actual needs. 5 The results of these parameters can be analyzed using 8951 as the mouth of the signal input port, P] as a control signal output port. Display part of the system using four 74LS164 drive LED. In order to improve system reliability, the output, input circuit, set the optical coupling circuit to eliminate the line asked electromagnetic interference. 4,[link widoczny dla zalogowanych], the design of the system control program shown in Figure 3 for the constant tension control system block diagram. It can set parameters according to the actual production needs. When a stop-off by the need to deal with such events, can generate an interrupt command, the implementation of parking. According to the above control scheme is set, the main performance parameters are as follows yarn count (rex) Working width (∞ n) drum diameter m) winding thickness (mm) Warp Speed (ra / min) off-axis mode. Tension sensor single chip inverter type motor power W) to build the experimental equipment l93.6008001400 a loo0 hydraulic LZ-18591Maste ~ Drives6ES703AC38OVl0 rectangular creel creel Table 1 shows the overall warping machine warp speed in the Cave, in the host and cheese frame between the value of the measured yarn tension. Table 1 the tension of yarn speed speed _m) 50060070080090010430 tension (mN) 60919195102110 Figure 3 the whole machine control system block diagram constant tension value. Table 2 lists the detection position in a different yarn tension LPo product development and marketing purposes ± a f cut (Chi Square Industrial Research Institute of Sichuan Province 610072) 1 new development of products in four Chuanchuan Long Knitting Co., Ltd. is a textile industry in Sichuan Province Founder of the economic entity, is a small company. The company is only 4 knitting machine,[link widoczny dla zalogowanych], respectively, from Germany, Japan, Taiwan imported a single machine, double-sided machine, rib and rib ring with the sinker machine, are four runways, do some small jacquard. In recent years, companies rely on these devices in the market competition has made a foothold, and has achieved good social and economic benefits. Which pay close attention to product development, according to market dynamics, the trend points off the market for product development and design is the most important part. For example, in 1992, high-end research and development of rabbit wool knitted fashion it, to create profits l0 million; the development of Hong light 1993 series c silk products, more than 20 million annual profit. The early 90s, the international market popular hair products. The appearance of fullness of the product, Yong kilns, soft, smooth waxy, warm is good, light texture, form a trend. At the same time. The domestic market popular rabbit wool knitwear knitted sweater knitting machine (28E of the single machine) can eat rabbit yarn? We started thinking, exploring and testing. The first is to address the high number of low count yarn machine problems (usually 28E eat lg.22tex polyester filament yarn or 1667tex) we mixed the two materials used to make rabbit yarn not a circle. Will be 16.67tex polyester filament woven into the ring, ring set of rabbit hair yarn, so that the formation of the fabric opposite the float longer, reduce weaving, and to highlight the hair seal. Minor adjustments, positive for the polyester,[link widoczny dla zalogowanych], the fabric opposite to the formation of a rabbit. Nylon filament into the polyester, the fabric is more consistent negative staining results. Table 1 shows,[link widoczny dla zalogowanych], the value of a certain line speed, the yarn tension is constant, the greater the speed, the more yarn tension too. Sincerely 2PT '~, in the same line speed. Detected before the creel yarn tension fluctuations in a small area, but this change is due to friction in the process of yarn and the yarn itself caused by cable tension. Between the host and the creel (lm from the Department of warping axis) detected a constant yarn tension. Experimental results show that this method can maintain the yarn enough j during the whole constant tension by the same line in Table 2 test this position under different degree of tension of the yarn 6 Conclusion SCM adjust the whole machine drive control system of constant tension able to maintain the yarn in the winding process of constant tension,[link widoczny dla zalogowanych], smooth and reliable operation of the system has practical value
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