摘要
针对现有的辊式整纬器对于常见的双弓纬、双钩弓纬等类型的纬斜纠正效果较差且整纬辊调整量的计算复杂度高的问题,提出了一种整纬器的改进方案。首先通过对辊式整纬器整纬原理的分析,提出一种多辊型整纬器改进结构;然后使用方程模拟了常见的纬斜类型,得到纬纱的初始形态,计算出整纬前的纬斜率,并求出纬纱上8个点的斜率,建立纬斜检测数据模拟数据库。最后,设计了一种利用最小二乘法获得各个整纬辊调整量的方法,降低了计算的复杂度,根据调整量得到纬纱的最终形态算出整纬后的纬斜率。实验结果表明,改进后整纬器的整纬效果得到了提高,使常见类型的纬斜经过整纬后一等品数量均达到100%。
The existing weft-straightening machine for woven fabrics has poor corrective effect on common types of weft skewness such as double bow and double hook,and computation for readjustment of rotating speed is complex for the weft-straightening machine.Accordingly,an improved scheme of weft-straightening machine was designed and experimented.Firstly,an improved structure of multi-roll weft straightener was proposed after analyzing the principle of weft straightening of roller weft straightener.The equation was used to simulate the common weft skew types,and the initial weft shape was obtained for calculating the weft slope of the fabric before weft correction.Eight points on the weft was used to describe the weft slope,and the simulation database of weft skew detection was thus established.Finally,a method was designed to obtain the adjustments of each weft roll by using the least square method based on the detected weft inclination data,reducing the computational complexity and enabling the calculation of the weft slope after weft rectification according to the final orientation of the weft.Experimental results show that the effect of weft-straightening machine is improved by readjusting the weft straightener,leading to a 100%first-class fabric qualification rate for different types of weft skew problems.
作者
刘建宝
李平
金福江
梅小华
LIU Jianbao;LI Ping;JIN Fujiang;MEI Xiaohua(College of Information Science and Engineering, Huaqiao University, Xiamen, Fujian 361021, China;Fujian Engineering Research Center of Motor Control and System Optimal Schedule, Xiamen, Fujian 361021, China;College of Mechanical Engineering and Automation, Huaqiao University, Xiamen, Fujian 361021, China)
出处
《纺织学报》
EI
CAS
CSCD
北大核心
2020年第6期153-160,共8页
Journal of Textile Research
基金
国家自然科学基金项目(61603144)
福建省自然科学基金项目(2018J01095)
福建省高校产学合作科技重大项目(2013H6016)
华侨大学中青年教师科技创新资助计划项目(ZQN-PY509)。
关键词
织物纬斜
整纬器
数据模拟
数据插值
最小二乘法
fabric weft skewness
weft-straightening machine
data simulation
data interpolation
least squares method
