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Wpływ poziomego ustawienia trójkąta przędącego na jakość przędzy
Języki publikacji
Abstrakty
The spinning triangle is a critical region in the spinning process of yarn. Its geometry influences the distribution of fibre tension in the spinning triangle and, thus, affects the properties of spun yarns. Therefore, taking appropriate measures to influence the spinning triangle geometry and thus improve the quality of yarn has attracted great interesting in recent years. During the geometry parameters, the horizontal offset of the twisting point to the symmetric axis of the nip line of the spinning triangle d has attracted more and more attention and is considered as one of the most critical factors influencing the quality of yarn. Therefore, in this paper, the effects of the horizontal offset d of the ring spinning triangle on yarn qualities is investigated. Firstly a theoretical model of the fibre tension distributions in the spinning triangle is given. Relationships between the fibre tension and horizontal offset of the spinning triangle are analysed theoretically. Secondly, as an application of the model proposed, the spinning triangles of a modified ring spinning system with a pair of offset devices which can change the horizontal offset ‘d’ continuously are studied. The distributions of fibre tension in the spinning triangle are simulated numerically, with the horizontal offset varying continuously. Furthermore the properties of spun yarns produced by the modified system are evaluated and analysed by using the simulation results.
Trójkąt przędący jest istotnym parametrem w procesie przędzenia. Jego geometria wpływa na rozkład naprężeń włókien w trójkącie przędącym, co oddziałuje na właściwości przędzy. Dlatego w ostatnich latach dużym zainteresowaniem cieszą się badania nad wpływem geometrii trójkąta przędącego w celu uzyskania możliwie najwyższej jakości. Konfiguracja geometryczna, w tym poziome przesunięcie trójkąta przędącego odgrywają coraz większą rolę w analizach procesu przędzenia obrączkowego. Autorzy przedstawili teoretyczny model rozkładów naprężeń włókien w trójkącie przędącym i przeanalizowali teoretyczne zależności pomiędzy naprężeniem włókien a ustawieniem trójkąta przędącego. Przeprowadzono symulację numeryczną i na jej podstawie wyciągnięto wnioski dotyczące jakości produkowanej przędzy.
Czasopismo
Rocznik
Strony
35--40
Opis fizyczny
Bibliogr. 21 poz., rys., tab.
Twórcy
autor
- School of Textile & Clothing, Jiangnan University, WuXi, P. R. China
autor
- Key Laboratory of Science & Technology of Eco-textiles, Ministry Education, JiangNan University, WuXi, P. R. China
autor
- School of Textile & Clothing, Jiangnan University, WuXi, P. R. China
Bibliografia
- 1. Zhang Wengeng, Chen Mingyou, Ding Shouji, Peng Weilian. The basic theory of the twisting process. Textile Engineering Publishers, Beijing, 1983.
- 2. Hua Tao, Tao Xiaoming, Cheng Kwok Po Stephen,Xu Bingang. Effects of Geometry of Ring Spinning Triangle on Yarn Torque Part I: Analysis of Fibre Tension Distribution. Textile Research Journal 2007; 77(11): 853-863.
- 3. Hua Tao, Tao Xiaoming, Cheng Kwok Po Stephen, Xu Bingang. Effects of Geometry of Ring Spinning Triangle on Yarn Torque: Part II: Distribution of Fibre Tension within a Yarn and Its Effects on Yarn Residual Torque. Textile Research Journal 2010; 80(2): 116-123.
- 4. Feng Jie, Xu Bingang, Tao Xiaoming, et al. Theoretical Study of Spinning Triangle with Its Application in a Modified Ring Spinning System. Textile Research Journal 2010; 80(14): 1456-1464.
- 5. Wang Xungai. Recent research on yarn hairiness testing and reduction: PartReduction of Yarn Hairiness. Research Journal of Textile and Apparel 1998; 3(1): 1-8.
- 6. Thilagavathi G, Udayakumar D, Sasikala L. Yarn hairiness controlled by various left diagonal yarn path offsets by modified bottom roller flute blocks in ring spinning. Indian Journal of Fibre and Textile Research 2009; 34: 328-332.
- 7. An Xianglong, Yu Chongwen. Dynamic model of sirospun process. Part I: theoretical dynamic model. Journal of the Textile Institute 2010; 101(9): 805-811.
- 8. Cheng Longdi, Fu Peihua, Yu Xiuye. Relationship between hairiness and the twisting principles of solospun and ring spun yarns. Textile Research Journal 2004; 74(9): 763- 766.
- 9. Momir N, Zoran S, Franc L, Andrej S. Compact Spinning for Improved Quality of Ring-Spun Yarns. Fibres & Textiles in Eastern Europe 2003; 11(4): 30-35.
- 10. Ren Liang. A new idea to reduce ring spinning yarn hairiness-mismatch spinning. Shang Hai Textile Science &Technology 2009; 37(3):16-17, 25.
- 11. Ren Liang, Chen Jingkun, Fan Guangcai, Song Qinjie, Liu Guoqi. Mismatch Spinning to Reduce Ring Spinning Yarn Hairiness. Progress in Textile Science & Technology 2009; 2: 39-40.
- 12. Tao Xiaoming, Xu Bingang, Wong Singkee Eric. Manufacturing Method and Device for Producing Singles Ring Spun Yarns. International Publication No: WO2006/074582, 2006.
- 13. Xu Bingang, Tao Xiaoming. Techniques for Torque Modification of Singles Ring Spun Yarns. Textile Research Journal 2008; 78(10): 869-879.
- 14. Yang Kun, Tao Xiaoming, Xu Bingang, Jimmy Lam. Structure and Properties of Low Twist Short-staple Singles Ring Spun Yarns. Textile Research Journal 2007; 77(9): 675-685.
- 15. Fujino K, Uno M, Shiomi A, Yanagawa Y, Kitada Y. A Study on the Twist Irregularity of Yarns Spun on the Ring Spinning Frame. The Textile Machinery Society of Japan 1962; 8: 51-62.
- 16. Pavlov YV. Structural Transformations in the Fibre Assembly at the Twist Threshold at the Instant of Rupture. Technology of the textile industry 1965; 4: 57-63.
- 17. Krause HW, Soliman HA, Tian JL. Investigation of the Strength of the Spinning Triangle in Ring Spinning. Melliand Textillberichte 72: 499-502, 1991.
- 18. Klein W. Spinning Geometry and its Significance. International Textile Bulletin: Yarn Fabric Forming 1993; 139: 22-26.
- 19. Wang Xungai, Chang Lingli. Reducing Yarn Hairiness with a Modified Yarn Path in Worsted Ring Spinning. 2003; 73(4): 327-332.
- 20. Shaikhzadeh NS. An Analysis of the Twist Triangle in Ring Spinning. PhD Thesis, University of New South Wales, Australia, 1996.
- 21. Li Shengyan, Xu Bingang, Tao Xiaoming. Numerical Analysis on Mechanical Behavior of a Ring-Spinning Triangle Using the Finite Element Method. Textile Research Journal 2011; 81(9): 959-971 .
Typ dokumentu
Bibliografia
Identyfikator YADDA
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