Journal of Textile Research ›› 2021, Vol. 42 ›› Issue (09): 156-162.doi: 10.13475/j.fzxb.20201008907

• Machinery & Accessories • Previous Articles     Next Articles

Influence of densely wound coil array structure on driving performance of suspended knitting needles

LI Dongdong1, ZHANG Chengjun1,2(), ZUO Xiaoyan1,2, ZHANG Chi1,2, ZHU Li1, LIU Yakun1   

  1. 1. School of Mechanical Engineering and Automation, Wuhan Textile University, Wuhan, Hubei 430073, China
    2. Hubei Key Laboratory of Digital Textile Equipment, Wuhan, Hubei 430073, China
  • Received:2020-10-30 Revised:2021-06-11 Online:2021-09-15 Published:2021-09-27
  • Contact: ZHANG Chengjun E-mail:zchengj_wuse@163.com

RichHTML

3

PDF (PC)

47

Abstract:

In order to improve the driving performance of knitting needles, through the analysis of the densely wound coil array structure, the driving structure of the floating needle was determined, and the spatial magnetic field strength and the driving force of the floating needle were improved. According to Biot-Savart law, the electromagnetic model of the densely wound coil array structure was deduced, and the magnetic induction intensity of different densely wound coil structures and array methods at any position on the central axis was analyzed and calculated, which gain the electromagnetic field of the permanent magnet knitting needles under different air gaps and driving force. An electromagnetic simulation software was used to establish the driving model of the densely wound coil array structure, and the numerical curve of the electromagnetic driving force of the single and array type densely wound coil structure on the permanent magnetic needle were obtained. Using the constructed densely wound coil array driving experiment test platform, comparative analysis of simulation and experimental results were achieved, showing that the cylindrical densely wound coil has better driving performance in the permanent magnetic needle drive system, and the driving force generated by a single group of densely wound coils is greater than that of multiple groups.

Key words: suspended needle driven, permanent magnetic knitting needle, densely wound coil array, electromagnetic model, driving performance, flat knitting machine

CLC Number: 

  • TP311

Fig.1

Cylindrical densely wound coil driving structure. (a)One set of coil arrays;(b)Two set of coil arrays;(c)Three set of coil arrays;(d)Four set of coil of arrays"

Fig.2

Closely wound coils with different cross-sectional shapes. (a) Cylindrical; (b) Fusiform; (c) Spin double curves"

Tab.1

Parameters of simulation model for knitting needle drive"

类型 材料 形状 厚度/
mm		 半径/
mm		 线圈电流/
A		 磁动
势/AT
密绕
线圈		 铜 圆柱形 50 3 [0.7-1] 3 000
纺锤形 50 变化 [0.7-1] 3 000
双曲线形 50 变化 [0.7-1] 3 000
永磁 NdFe35 圆柱形 7 8 — —

Fig.3

Cylindrical densely wound coil of driving force with air gap height changing at different magnetomotive force"

Fig.4

Spin double curves densely wound coil relation chart of driving force with air gap height changing at different magnetomotive force"

Fig.5

Fusiform densely wound coil of driving force with air gap height changing at different magnetomotive force"

Tab.2

Relationship between array structure of densely wound coils of different cross-sections and the electromagnetic force"

截面形状 线圈阵列 不同磁动势下的驱动力/N
2 100 AT 2 400 AT 2 700 AT 3 000 AT
圆柱形 1组 0.120 0.135 0.140 0.140
2组 0.045 0.045 0.050 0.060
3组 0.035 0.035 0.035 0.035
4组 0.035 0.035 0.035 0.035
纺锤形 1组 0.035 0.060 0.060 0.060
2组 0.035 0.035 0.035 0.035
3组 0.035 0.035 0.050 0.050
4组 0.035 0.035 0.055 0.055
双曲线形 1组 0.035 0.035 0.042 0.042
2组 0.035 0.035 0.042 0.035
3组 0.035 0.035 0.035 0.035
4组 0.035 0.035 0.035 0.035
[1] 郑敏. 经济型电脑横机三针道选针三角结构设计[J]. 针织工业, 2016(9):30-32.
ZHENG Min. Design of three-needle needle selecting triangle structure of economical computerized flat knitting machine[J]. Knitting Industries, 2016(9):30-32.
[2] 郑敏. 电脑横机针板磨合台的设计及应用[J]. 针织工业, 2014(12):15-17.
ZHENG Min. Design and application of needle plate running-in table of computerized flat knitting machine[J]. Knitting Industries, 2014(12):15-17.
[3] 唐彪, 钱福海. 电脑横机沉降三角机构的设计[J]. 针织工业, 2012(5):22-24.
TANG Biao, QIAN Fuhai. Design of settlement triangle mechanism of computerized flat knitting machine[J]. Knitting Industries, 2012(5):22-24.
[4] 李珂, 吴志明. 基于收针工艺的全成形毛衫分割线设计原理[J]. 纺织学报, 2019, 40(6):86-91.
LI Ke, WU Zhiming. Design principle of fully-formed sweater split line based on needle retraction technology[J]. Journal of Textile Research, 2019, 40(6):86-91.
[5] 胡国军, 杨伟泉. 电脑横机纱夹装置结构优化设计[J]. 上海纺织科技, 2016, 44(2):62-64.
HU Guojun, YANG Weiquan. Optimized design of the structure of the computerized flat knitting device[J]. Shanghai Textile Science & Technology, 2016, 44(2):62-64.
[6] GRISHANOV S, CASSIDY T, SPENCER D. A model of the loop formation process on knitting machines using finite automata theory[J]. Applied Mathematical Modelling, 1997, 21(7):455-465.
doi: 10.1016/S0307-904X(97)00042-5
[7] 张成俊, 游良风, 左小艳, 等. 电脑横机织针的磁驱动设计与建模[J]. 纺织学报, 2019, 40(9):180-185.
ZHANG Chengjun, YOU Liangfeng, ZUO Xiaoyan, et al. Design and modeling of magnetic drive for computerized flat knitting needles[J]. Journal of Textile Research, 2019, 40(9):180-185.
[8] 王莉, 熊剑, 张昆仑, 等. 永磁和电磁构成的混合式悬浮系统研究[J]. 铁道学报, 2005(3):50-54.
WANG Li, XIONG Jian, ZHANG Kunlun, et al. Research on hybrid suspension system composed of permanent magnet and electromagnetic[J]. Journal of the China Railway Society, 2005(3):50-54.
[9] 明正峰, 汶涛, 雷振亚, 等. 大间隙混合悬浮系统结构设计与特性分析[J]. 西安电子科技大学学报, 2012, 39(3):1-6,13.
MING Zhengfeng, WEN Tao, LEI Zhenya, et al. Structural design and characteristic analysis of large-gap hybrid suspension system[J]. Journal of Xidian University, 2012, 39(3):1-6,13.
[10] 王念先. 大气隙混合磁悬浮轴承相关理论及设计方法的研究[D]. 武汉:武汉理工大学, 2013:7-20.
WANG Nianxian. Research on related theory and design method of atmospheric gap hybrid magnetic bearing[D]. Wuhan:Wuhan University of Technology, 2013:7-20.
[11] 吴晓光, 张弛, 徐秀升, 等. 双曲面线圈与永磁混合驱动悬浮织针样机研究[J] 针织工业, 2017(11):6-10.
WU Xiaoguang, ZHANG Chi, XU Xiusheng, et al. Research on prototype of suspended needle driven by hybrid hyperboloid coil and permanent magnet[J]. Knitting Industries, 2019, 40(9):180-185.
[1] ZHAO Boyu, LIANG Xinhua, CONG Honglian. Structural modeling and process practice of three-dimensional fully fashioned face masks woven by computerized flat knitting machine [J]. Journal of Textile Research, 2020, 41(12): 59-65.
[2] LIU Bo, CONG Honglian. Process design and knitting principle of one-piece casual suits based on four-needle-bed flat knitting machine [J]. Journal of Textile Research, 2020, 41(04): 129-134.
[3] WANG Pan, WU Zhiming. Transverse knitting method and forming process of fully formed sweater [J]. Journal of Textile Research, 2019, 40(10): 73-78.
[4] ZHANG Chengjun, YOU Liangfeng, ZUO Xiaoyan, ZHANG Chi, ZHU Li. Magnetic driving design and modeling for knitting needles of computerized flat knitting machine [J]. Journal of Textile Research, 2019, 40(09): 180-185.
[5] WANG Pan, WU Zhiming. Principle and application of partial knitting on fully formed sweater [J]. Journal of Textile Research, 2019, 40(05): 41-46.
[6] . Forming process of shoulder and sleeves of whole garment [J]. JOURNAL OF TEXTILE RESEARCH, 2018, 39(03): 56-60.
[7] . Structure and knitting principle of whole garment [J]. JOURNAL OF TEXTILE RESEARCH, 2017, 38(11): 48-55.
[8] . Whole garment knitting process on four-bed computerized flat knitting machine [J]. JOURNAL OF TEXTILE RESEARCH, 2017, 38(04): 61-67.
[9] . CAN Bus scheduling simulation for computerized flat knitting machine based on network control [J]. JOURNAL OF TEXTILE RESEARCH, 2016, 37(08): 154-159.
[10] . Design and realization of yarn carriers control method for high performance computerized flat knitting machine [J]. JOURNAL OF TEXTILE RESEARCH, 2013, 34(10): 137-0.
[11] .   Modeling and simulation of loop forming mechanism of computerized flat knitting machine based on UG NX/Motion [J]. JOURNAL OF TEXTILE RESEARCH, 2013, 34(1): 122-127.
[12] ZHANG Chi, ZHANG Cheng-Jun, WU Xiao-Guang. Control system data preparation of computerize flat knitting machine [J]. JOURNAL OF TEXTILE RESEARCH, 2012, 33(8): 124-129.
[13] ZHANG Hua, HU Xu-Dong, PENG Lai-Hu, ZHANG Jian-Yi. Q15-based flat knitting machine’s needle pwsiton tracking algorithm [J]. JOURNAL OF TEXTILE RESEARCH, 2012, 33(6): 88-91.
[14] CHEN Jingbo;LU Da;WANG Lingling. Design of host computer software for automatic computerized flat knitting machine [J]. JOURNAL OF TEXTILE RESEARCH, 2011, 32(2): 131-135.
[15] WANG Jiman;SONG Guangli. Knitting time forecasting of computerized flat knitting machine [J]. JOURNAL OF TEXTILE RESEARCH, 2010, 31(5): 48-54.
Viewed
Full text


Abstract

Cited
  Shared   
  Discussed   
No Suggested Reading articles found!
京ICP备14006648号
Copyright 2021 © Editorial office of Journal of Textile Research
Supported by Beijing Magtech Co.Ltd