针织纬编氨纶输送控制技术  

Control technology for spandex yarn delivery in weft knitting

作　　者：彭来湖[1] 罗昌 牛冲 吕永法 胡旭东[1] 戴宁 PENG Laihu;LUO Chang;NIU Chong;LÜYongfa;HU Xudong;DAI Ning(Key Laboratory of Modern Textile Machinery & Technology of Zhejiang Province, Zhejiang Sci-Tech University, Hangzhou, Zhejiang 310018, China;Hangzhou Xuren Automation Co. , Ltd. , Hangzhou, Zhejiang 310018, China;Zhejiang Rifa Textile Machinery Technology Co. , Ltd. , Xinchang, Zhejiang 312500, China)

机构地区：[1]浙江理工大学浙江省现代纺织装备技术重点实验室,浙江杭州310018 [2]杭州旭仁自动化有限公司,浙江杭州310018 [3]浙江日发纺机技术有限公司,浙江新昌312500

出　　处：《纺织学报》2021年第4期162-169,共8页Journal of Textile Research

基　　金：浙江省重点研发计划项目(2019C01038);浙江省博士后科研项目特别资助项目(ZJ2020004)。

摘　　要：为解决低模量、高弹性、高回复率特性的氨纶在编织生产过程中送纱量难以调节控制的问题,采用快速响应的积极式送纱器作为动态输送纱线的驱动器,以可调占空比的脉冲宽度调制脉冲实现模拟量控制信号输出,以高性能高级精简指令集机制处理器为控制核心,采用位置和速度双闭环方式设计氨纶送纱实时控制器,实现氨纶的输送量动态调节和恒张力输送。研究了氨纶输送的工艺要求,阐述了送纱控制器的硬件设计和软件开发,提出了送纱控制器与整机控制系统的同步方案。实验结果表明,采用该控制方案的纬编织物成圈均匀整齐,无横条暗纹,弹性良好,验证了氨纶送纱量控制方案的可行性。The amount of spandex yarn delivery is difficult to adjust and control in weft knitting process because of its low modulus,high elasticity and high recovery rate.The fast response positive yarn feeder was used as the drive for yarn delivery.Analog control signal output was achieved using the pulse width modulation(PWM)with adjustable duty cycle.The high performance advanced RISC machines(ARM)processor was used as the control core,and the position and speed double closed loop mode was adopted.The real-time controller of the spandex yarn was designed to achieve the dynamic adjustment and constant tension delivery.The process requirements of spandex delivery were studied,and hardware design and software development of the yarn feeding controller were addressed.The synchronization scheme between the yarn dilivery controller and the whole machine control system was made.The experimental results show that the weft knitted fabrics produced with the new control scheme is even and tidy in circle,without dark stripes and with good elasticity,which verifies the feasibility of the spandex delivery control scheme.

关 键 词：积极式送纱 恒张力 氨纶纱 纬编 送纱量控制技术 

分 类 号：TS103.7[轻工技术与工程—纺织工程]