Journal of Textile Research ›› 2022, Vol. 43 ›› Issue (12): 48-53.doi: 10.13475/j.fzxb.20211006806

• Textile Engineering • Previous Articles     Next Articles

Design of simulation and control system for sliver blending

LI Hao1, CAO Qiaoli1, LI Jiawei1, HAN Zhenning1, YU Chongwen1,2()   

  1. 1. College of Textiles, Donghua University, Shanghai 201620, China
    2. Key Laboratory of Textile Science & Technology, Ministry of Education, Donghua University, Shanghai 201620, China
  • Received:2021-10-26 Revised:2022-06-10 Online:2022-12-15 Published:2023-01-06
  • Contact: YU Chongwen E-mail:yucw@dhu.edu.cn

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Abstract:

In order to obtain the distribution data of multi-component fibers in the blended yarn after the blending process, and to predict the quality indexes such as the blending irregularity and the unevenness of the sliver, MatLab software was used to simulate the motion state of the multi-component fibers in the process of sliver blending, and a visual operation platform was designed to build a simulation and control system. The simulation results were compared to the experimental results, revealing good agreements with different process parameters for blending. The simulation process is fast and visual. This system accurately predicts and control the shape and quality of blended yarns, and the work provides reference for the optimization of process parameters for practical production.

Key words: sliver blending, fiber distribution, blending irregularity, evenness of yarn, simulation

CLC Number: 

  • TS104.5

Fig.1

Flow chart of simulation"

Fig.2

Diagram of fiber distribution in sliver. (a) Longitudinal distribution; (b) Cross section distribution"

Fig.3

Design of input and output interface of simulation system. (a) Simulation system interface; (b) Switch output image to ″Yarn Longitudinal Shape″"

Fig.4

Simulation images of three-dimensional yarn longitudinal morphology from different angles. (a) X-Y View; (b) X-Z View; (c) θAz:3°, θEI:90°; (d) θAz:-36°, θEl:11°"

Tab.1

Comparison between simulated irregularity and measured irregularity with different blending ratios%"

白色与黑色纤维混纺比 头道并条 二道并条 三道并条
模拟值 实测值 误差 模拟值 实测值 误差 模拟值 实测值 误差
16.7:83.3 146.62 175.68 16.54 115.46 87.48 31.98 56.26 57.02 1.33
33.3:66.7 107.02 100.56 6.42 58.89 48.50 21.42 31.17 47.16 33.91
50.0:50.0 70.77 65.39 8.23 44.17 37.71 17.13 22.28 35.43 37.12

Fig.5

Comparison of simulation and measured images of blended sliver by white and black fibers under blending ratios of 16.7∶83.3(a), 33.3∶66.7(b) and 50∶50(c)"

Tab.2

Comparison between simulated mixing irregularity and measured irregularity under different arrangement of first silver blending%"

纱条排列方式 头道并条 二道并条 三道并条
模拟值 实测值 误差 模拟值 实测值 误差 模拟值 实测值 误差
WBWBWBWB 67.01 69.14 3.08 52.37 50.57 3.56 41.34 40.89 1.10
WWBBWWBB 78.57 76.43 2.80 57.48 54.35 5.76 43.18 43.88 1.60
WWWWBBBB 92.94 83.29 11.59 60.13 61.87 2.81 45.6 46.99 2.96
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