双针床经编机梳栉摆动对瞬时需纱量和纱线张力的影响

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双针床经编机梳栉摆动对瞬时需纱量和纱线张力的影响

Influence of guide-bar swing on instantaneous yarn demand and yarn tension on double needle bar warp knitting machine

双针床经编机梳栉摆动对瞬时需纱量和纱线张力的影响

Influence of guide-bar swing on instantaneous yarn demand and yarn tension on double needle bar warp knitting machine

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doi:10.13475/j.fzxb.20180501105

纺织学报 ›› 2019, Vol. 40 ›› Issue (06): 106-110.doi: 10.13475/j.fzxb.20180501105

徐云龙, 夏风林()

江南大学教育部针织技术工程研究中心, 江苏无锡 214122

收稿日期:2018-05-02 修回日期:2019-02-12 出版日期:2019-06-15 发布日期:2019-06-25
通讯作者: 夏风林
作者简介:徐云龙(1992—),男,硕士生。主要研究方向为数字化智能纺织技术。
基金资助:
国家工信部智能制造综合标准化与新模式应用项目子课题(工信部联装[2016]213号);江苏省产学研联合创新资金-前瞻性联合研究项目(BY2016022-18)

XU Yunlong, XIA Fenglin()

Engineering Research Center for Knitting Technology, Ministry of Education, Jiangnan University, Wuxi, Jiangsu 214122, China

Received:2018-05-02 Revised:2019-02-12 Online:2019-06-15 Published:2019-06-25
Contact: XIA Fenglin

摘要：

为更好地控制双针床经编机成圈过程中纱线张力的波动,以RDJ4/2 EL型双针床经编机为研究对象,测试不同运转角度下的纱线需求量和纱线张力的波动曲线。通过分析导纱针-织针处的瞬时需纱量和梳栉-导纱针的瞬时需纱量发现,相比导纱针-织针处的瞬时需纱量,梳栉-织针瞬时需纱量的波动程度增加了231.5%;分析整体瞬时需纱量和纱线张力的波动趋势发现,纱线张力和梳栉-织针瞬时需纱量具有相似的增区间和减区间,极值存在的角度区间也很接近。研究结果表明:梳栉整体的摆动增加了需纱量的波动范围,是影响瞬时需纱量和纱线张力波动规律的最主要因素,严重降低了纱线的稳定性。

关键词: 经编机, 成圈运动, 纱线张力, 纱线消耗

Abstract:

In order to study the influence of bar swing on instantaneous yarn demand and yarn tension fluctuation, based on the RDJ4/2 EL warp-knitting machine, the actual instantaneous yarn demand and yarn tension fluctuation at different running angle were measured. It is found from the calculation and analysis of the instantaneous yarn demand in the circle area and the instantaneous yarn demand of the guide bar that the fluctuation of the guide bar causes the fluctuation of instantaneous yarn demand by 231.5% compared with the form of motion with no bar swing. By comparing the fluctuating trend of overall instantaneous yarn demand and yarn tension, it is found that yarn tension and total instantaneous yarn demand have the similar increasing interval and decreasing interval, and have the similar interval of extreme value. Research shows that the swing of the guide bar increases range of fluctuations in the amount of yarn demand, and is the most important factor affecting the yarn tension and severely reduced the stability of the yarn.

Key words: warp knitting machine, knitting motion, yarn tension, yarn consumption

中图分类号:

TS184

徐云龙, 夏风林. 双针床经编机梳栉摆动对瞬时需纱量和纱线张力的影响[J]. 纺织学报, 2019, 40(06): 106-110.

XU Yunlong, XIA Fenglin. Influence of guide-bar swing on instantaneous yarn demand and yarn tension on double needle bar warp knitting machine[J]. Journal of Textile Research, 2019, 40(06): 106-110.

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特征点	转角/(°)	机器状态	特征值/mm
峰值1	30	前针床上升,梳栉后摆	24.10
谷值1	60	梳栉前移至针床正上方	20.10
峰值2	90	前针床针前垫纱	23.90
谷值2	120	梳栉后移至针床正上方	21.50
峰值3	150	前针床脱圈	32.70
谷值3	180	梳栉位于针床正上方	27.20
峰值4	210	后针床上升,梳栉前摆	29.10
谷值4	240	梳栉后摆至针床正上方	26.50
峰值5	270	后针床针前垫纱	29.90
谷值5	300	梳栉前摆至针床正上方	27.20
峰值6	330	后针床脱圈	33.80

特征点	转角/(°)	机器状态	S₂/mm	F/cN
峰值1	20~30	前针床上升,梳栉后摆	32.20	0.200
谷值1	85~95	前针床针前垫纱	14.00	0.067
峰值2	140~150	前针床脱圈	40.90	0.196
谷值2	210~220	后针床上升,梳栉前摆	20.20	0.075
峰值3	265~275	后针床针前垫纱	38.10	0.071
谷值3	325~335	后针床脱圈	23.90	0.095

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