纺织学报 ›› 2024, Vol. 45 ›› Issue (05): 202-208.doi: 10.13475/j.fzxb.20221005901

• 机械与设备 • 上一篇    下一篇

磁悬浮织针驱动方法和控制技术

熊涛1, 李成缘1, 桂顺1, 王意1, 张成俊1,2(), 左小艳1,2   

  1. 1.武汉纺织大学 机械工程与自动化学院, 湖北 武汉 430073
    2.湖北省数字化纺织装备重点实验室, 湖北 武汉 430073
  • 收稿日期:2023-01-28 修回日期:2024-01-30 出版日期:2024-05-15 发布日期:2024-05-31
  • 通讯作者: 张成俊(1979—),男,教授,博士。主要研究方向为针织装备设计与控制。E-mail:zchengj_wuse@163.com。
  • 作者简介:熊涛(1997—),男,硕士生。主要研究方向为针织装备设计。
  • 基金资助:
    国家自然科学基金资助项目(51875414);湖北省教育厅科学技术研究项目(D20211705);武汉市知识创新专项项目(2023010201010115);武汉市应用基础前沿项目(2022013988065209)

Drive method and control technology of magnetic levitation needle

XIONG Tao1, LI Chengyuan1, GUI Shun1, WANG Yi1, ZHANG Chengjun1,2(), ZUO Xiaoyan1,2   

  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:2023-01-28 Revised:2024-01-30 Published:2024-05-15 Online:2024-05-31

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摘要：

为完善磁悬浮针织横机的工艺流程,实现花型设计图案到织针编织动作的数据转换,首先根据混合磁悬浮针织横机系统的工作原理,设计了步进式磁悬浮织针的驱动方案;然后采用数学矩阵的方法,建立磁悬浮针织横机双色单面提花织物的意匠图模型,同时推导出双色单面提花织物的数据转换算法,最后将意匠图设计的花型数据转换成织针编织的驱动数据,并根据步进式磁悬浮织针的驱动方案定义织针编织动作对应的电流信号。在此基础上搭建织针驱动的实验平台进一步验证步进式驱动方案的可行性,并使用仿真软件验证意匠图转换算法的准确性。研究结果表明,步进式织针驱动方案可使织针逐步达到工艺编织高度,满足工艺设计要求;双色单面提花转换算法也能准确将意匠图的花型数据转换成织针驱动的编织数据,通过定义编织动作对应的线圈电流信号使设计的织物花型图案能转换成磁悬浮针织横机驱动的电流信号,达到织针驱动和编织工艺相结合的效果,简化了磁悬浮针织横机编织双色单面提花织物的工艺流程,为磁悬浮针织横机的工艺设计探索出一条可行路线。

关键词: 横机, 驱动方案, 意匠图转换算法, 花型设计图案数据转换, 磁悬浮织针

Abstract:

Objective In order to improve the process flow of magnetic levitation flat knitting machine, and to realize the transformation from pattern design to needle knitting action, this paper proposes a technology of magnetic levitation flat knitting machine. Compared with the conventional needle driving method, the magnetic levitation flat knitting machine uses a new weft knitting machine technology that alleviates the problems of noise, heat and needle breakage. The magnetic levitation flat knitting machine has a special driving structure, which requires a corresponding drive solution and process knitting flow.

Method Based on the working principle of the hybrid magnetic levitation flat knitting machine system and the special driving structure, a stepper type magnetic levitation needle drive solution was designed. A mathematical matrix method was adcpted to model the pattern grid of two-color single-layer jacquard fabric on a magnetic levitation knitting flat knitting machine. Finally, the experimental platform for needle driving was built to verify the feasibility of the stepper drive scheme, and the simulation software was adcpted to ensure the accuracy of the pattern grid conversion algorithm.

Results The magnetic levitation flat knitting machine is a weft knitting machine that applies magnetic levitation technology to the knitting driving structure. According to the stepper magnetic needle driving scheme, eight coils in the head work together to complete the knitting motion of the needle. Each coil has a different current signal to raise the needle to a different knitting height. Mathematical form is considered to define the pattern grid of the two-color single-jersey jacquard fabric, then the mathematical matrix method is adopted to convert the pattern of the pattern grid into the form of data matrix, and the data conversion algorithm is obtained which can transform the flower matrix into the braided matrix. According to the weaving method of two-color single-jersey jacquard fabric, the design pattern of pattern grid is converted into weaving action data by mathematical algorithm. The current signal corresponding to the knitting action of the needle is defined according to the drive scheme of the stepper maglev needle, which allows the design of a two-color single-jersey jacquard fabric pattern to be converted into a current signal for knitting on a magnetic levitation flat knitting machine. It was determined that a stepper drive solution would allow the needle to gradually reach the process knitting height through the construction of the experimental platform for the needle drive. The simulation software is adopted to build the design interface of the grid pattern and the data conversion algorithm is adopted to gradually convert the grid pattern into the form of data. The simulation software shows that the two-color single-jersey jacquard conversion algorithm accurately converts the pattern data of the pattern grid into needle-driven weave data.

Conclusion the proposed stepping magnetic levitation needle drive scheme and pattern grid data conversion algorithm completes the knitting process of the magnetic levitation flat knitting machine, and different current signals will be adopted to represent the different knitting motions of the needles. The algorithm converts the two-color single-jersey jacquard design pattern into weave data, and each weave data represents the weave action of each needle. At the same time, it completes the two-color single-jersey jacquard fabric process from grid pattern design to magnetic levitation flat knitting machine, which can allow the magnetic levitation flat knitting machine to weave two-color single-jersey jacquard fabrics with greater ease. Therefore, the feasible route is explored for the process design of magnetic levitation flat knitting machine, which simplifies the process flow of two-color single-jersey jacquard fabric by magnetic levitation flat knitting machine.

Key words: flat knitting machine, needle drive scheme, artisan diagram conversion algorithm, patten design data conversion, magnetic levitation needle

中图分类号: 

  • TP311

图1

磁悬浮织针横机驱动结构图"

图2

磁悬浮针织横机运行动作示意图"

图3

织针轨迹图"

表1

织针步进电流参数表"

织针工步 线圈驱动电流/mA
0 0
1 280
2 390
3 440
4 560
5 880
6 1 080
7 1 250
8 -1 250

图4

双色单面提花织物的花型意匠图"

表2

编织动作的电流信号表"

编织动作 数字表示 线圈电流信号
浮线 1 (0,0,0,0,0,0,0,0)
集圈 2 (0,0,0,1,2,3,4,8)
接圈 3 (0,0,0,0,0,1,2,8)
成圈 4 (0,1,2,3,4,5,6,8)
移圈 5 (1,3,4,5,6,7,7,8)

图5

矩阵转换算法流程图"

图6

双色单面提花织物的数学模型"

图7

磁悬浮针织横机系统实验平台"

图8

织针驱动效果图"

图9

花型意匠图设计界面"

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