转杯竹节纱的工艺理论研究
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摘要
随着技术的不断更新和改进,转杯纺纱技术以其独特的优势在纺纱领域中占有重要的地位。在欧美一些国家,有着较先进的技术。在我国则相对落后,但这样也预示着我国在转杯纺快速发展的大趋势下可以有巨大的发展潜力。为进一步拓展转杯纺应用范围及开发新品种,研制开发转杯竹节纱已经成为转杯纺发展方向之一。
本文就转杯竹节纱的工艺理论问题进行了系统的研究,主要研究内容如下:
1、从转杯纺的凝聚和并合机理出发,对转杯竹节纱竹节形态进行了深入的理论分析。通过三次改变喂给罗拉速度,从理论上研究转杯竹节纱竹节形态的变化,得到了竹节纱竹节段线密度分布的两种情况,一种情况下竹节形态是普通转杯竹节纱的简单组合。竹节形态与喂给罗拉速度变化两次的情况一致。另一种情况下竹节形态较为复杂,本文研究了其线密度的分布规律。
2、通过纱线在纺纱过程中主要的三个区域:假捻盘上的纱条、自由纱段、凝聚槽的运动和受力分析建立了系统的理论模型,为系统研究纱线在这三个主要区域内的捻度与张力分布奠定了理论基础。
3、通过对上述系统的理论模型采用龙格---库塔法进行数值计算,系统的研究了纱条在这三个区域的捻度与张力的分布规律,并比较得出了纱线线密度、引纱孔半径、转杯转速、假捻盘半径、转杯半径这些工艺参数对纱条捻度与张力所起的影响及其各自的影响程度。
4、进行了捻度传递长度的数值计算,经比较得出了有利于捻度传递长度增大的影响因素。
通过对上述研究内容进行研究,结果表明:
1、在一个竹节周期内两次改变喂给罗拉速度的情况下,竹节是普通转杯竹节纱的简单组合,竹节形态没有发生变化。在一个竹节周期内三次改变喂给罗拉速度的情况下,竹节形态变得比较复杂,是在一个普通竹节上又叠加了一个竹节。这为拓展转杯纺应用领域、开发转杯纺新品种、丰富竹节纱产品有指导意义。
2、通过研究纱条的张力及捻度的分布考察了转杯纺纺制竹节纱的稳定性,得出影响纱条的张力及捻度最主要的三个工艺参数为:纱线线密度、转杯半径、转杯转速。这对提高转杯纺纺制竹节纱过程中纱条的捻度和张力,从而提高纺纱稳定性有指导意义。
3、通过对捻度传递长度进行数值计算,经比较得出了有利于捻度传递长度增大的影响因素主要为转杯转速与转杯半径,这为转杯纺顺利纺制竹节纱的实践提供了理论上的支持。
With the improvement and renovation of the spinning technology, rotor spinning has an important role in the spinning field with its unique advantages. In European and American countries, they have advanced technology of rotor spinning. However, in China we fall a little behind in this field. But it also predicts that the potential in the development of rotor spinning in China is very tremendous under the trend of the rapid development of rotor spinning .For further expanding the application areas of rotor spinning and develop new products, the research and development of rotor fancy yarn has become one of the development direction of rotor spinning.
An systematic research on the technics of the rotor slub yarn has been conducted in the present work. The contents involved are as follows.
1. Based on the better understanding of collecting and doubling mechanism of rotor spinning, the rotor slub shape is deeply analyzed by changing the feed roller speed three times. The two situation of the distribution of density in thickness of slub yarn are obtained. The slub shape is the simple combination of ordinary rotor slub yarn in one situation. The slub shape is the same as that by changing the feed roller speed two times in one slub circle. The slub shape is very complex in the other situation. The distribution of density in thickness of slub yarn is studied.
2. A systematic theoretic model is established by analyzing the motion and dynamics of the yarn on the false-twist volume, free yarn segment, the yarn on the condensing groove. It lay a theoretical foundation on systematic research on the tension distribution and twist distribution of the yarn in the three areas.
3. The rule of the tension and twist distribution of the yarn in the three areas is systematically researched by numerically calculate the systematic theoretic model with Runge-Kutta method. The influence and its extent of technical parameter, such as linear density, yarn-leading bore radius, rotor speed, false-twist volume radius, rotor radius, on the tension and twist distribution is obtained by comparison.
4. The peripheral Twist Extend(P.T.E) length is numerically calculated. The impact factors which are favor of increasing the P.T.E length by comparison.
After the work mentioned above, the following results are obtained.
1. The slub is the simple combination of ordinary rotor slub yarn in the situation in which the feed roller speed is changed two times in one slub circle.At the same time, the slub shape has no change. Whereas the slub shape is very complex in the other situation in which the feed roller speed is changed three times in one slub circle. That is one slub surperpose another slub. It has instructional significance in further expanding the application areas of rotor spinning and developing new products.
2. The stability of producing rotor slub yarn in rotor spinning is studied by research of the tension and twist distribution of the yarn. The three most impact factors are obtained. They are linear density, rotor radius, rotor speed. It has instructional significance in the improvement of the tension and twist of the yam in spinning process, therefore in the improvement of the stability of spinning.
3. The peripheral Twist Extend(P.T.E) length is numerically calculated. The two most impact factors are obtained by comparison. They are rotor radius, rotor speed. It offers an theoretical support in the success production of producing slub yarn in rotor spinning.
本文就转杯竹节纱的工艺理论问题进行了系统的研究,主要研究内容如下:
1、从转杯纺的凝聚和并合机理出发,对转杯竹节纱竹节形态进行了深入的理论分析。通过三次改变喂给罗拉速度,从理论上研究转杯竹节纱竹节形态的变化,得到了竹节纱竹节段线密度分布的两种情况,一种情况下竹节形态是普通转杯竹节纱的简单组合。竹节形态与喂给罗拉速度变化两次的情况一致。另一种情况下竹节形态较为复杂,本文研究了其线密度的分布规律。
2、通过纱线在纺纱过程中主要的三个区域:假捻盘上的纱条、自由纱段、凝聚槽的运动和受力分析建立了系统的理论模型,为系统研究纱线在这三个主要区域内的捻度与张力分布奠定了理论基础。
3、通过对上述系统的理论模型采用龙格---库塔法进行数值计算,系统的研究了纱条在这三个区域的捻度与张力的分布规律,并比较得出了纱线线密度、引纱孔半径、转杯转速、假捻盘半径、转杯半径这些工艺参数对纱条捻度与张力所起的影响及其各自的影响程度。
4、进行了捻度传递长度的数值计算,经比较得出了有利于捻度传递长度增大的影响因素。
通过对上述研究内容进行研究,结果表明:
1、在一个竹节周期内两次改变喂给罗拉速度的情况下,竹节是普通转杯竹节纱的简单组合,竹节形态没有发生变化。在一个竹节周期内三次改变喂给罗拉速度的情况下,竹节形态变得比较复杂,是在一个普通竹节上又叠加了一个竹节。这为拓展转杯纺应用领域、开发转杯纺新品种、丰富竹节纱产品有指导意义。
2、通过研究纱条的张力及捻度的分布考察了转杯纺纺制竹节纱的稳定性,得出影响纱条的张力及捻度最主要的三个工艺参数为:纱线线密度、转杯半径、转杯转速。这对提高转杯纺纺制竹节纱过程中纱条的捻度和张力,从而提高纺纱稳定性有指导意义。
3、通过对捻度传递长度进行数值计算,经比较得出了有利于捻度传递长度增大的影响因素主要为转杯转速与转杯半径,这为转杯纺顺利纺制竹节纱的实践提供了理论上的支持。
With the improvement and renovation of the spinning technology, rotor spinning has an important role in the spinning field with its unique advantages. In European and American countries, they have advanced technology of rotor spinning. However, in China we fall a little behind in this field. But it also predicts that the potential in the development of rotor spinning in China is very tremendous under the trend of the rapid development of rotor spinning .For further expanding the application areas of rotor spinning and develop new products, the research and development of rotor fancy yarn has become one of the development direction of rotor spinning.
An systematic research on the technics of the rotor slub yarn has been conducted in the present work. The contents involved are as follows.
1. Based on the better understanding of collecting and doubling mechanism of rotor spinning, the rotor slub shape is deeply analyzed by changing the feed roller speed three times. The two situation of the distribution of density in thickness of slub yarn are obtained. The slub shape is the simple combination of ordinary rotor slub yarn in one situation. The slub shape is the same as that by changing the feed roller speed two times in one slub circle. The slub shape is very complex in the other situation. The distribution of density in thickness of slub yarn is studied.
2. A systematic theoretic model is established by analyzing the motion and dynamics of the yarn on the false-twist volume, free yarn segment, the yarn on the condensing groove. It lay a theoretical foundation on systematic research on the tension distribution and twist distribution of the yarn in the three areas.
3. The rule of the tension and twist distribution of the yarn in the three areas is systematically researched by numerically calculate the systematic theoretic model with Runge-Kutta method. The influence and its extent of technical parameter, such as linear density, yarn-leading bore radius, rotor speed, false-twist volume radius, rotor radius, on the tension and twist distribution is obtained by comparison.
4. The peripheral Twist Extend(P.T.E) length is numerically calculated. The impact factors which are favor of increasing the P.T.E length by comparison.
After the work mentioned above, the following results are obtained.
1. The slub is the simple combination of ordinary rotor slub yarn in the situation in which the feed roller speed is changed two times in one slub circle.At the same time, the slub shape has no change. Whereas the slub shape is very complex in the other situation in which the feed roller speed is changed three times in one slub circle. That is one slub surperpose another slub. It has instructional significance in further expanding the application areas of rotor spinning and developing new products.
2. The stability of producing rotor slub yarn in rotor spinning is studied by research of the tension and twist distribution of the yarn. The three most impact factors are obtained. They are linear density, rotor radius, rotor speed. It has instructional significance in the improvement of the tension and twist of the yam in spinning process, therefore in the improvement of the stability of spinning.
3. The peripheral Twist Extend(P.T.E) length is numerically calculated. The two most impact factors are obtained by comparison. They are rotor radius, rotor speed. It offers an theoretical support in the success production of producing slub yarn in rotor spinning.
引文
[1]Berthelsen,British Patent,Patent No.477,259
[2]张百祥等,转杯纺纱,北京,纺织工业出版社,1990
[3]刑声远等,气流纺纱,北京,纺织工业出版社,1980
[4]Yang Jianping et al.,Practice of rotor spinning in producing silk noil yarn and the development in woven fabrics and knitted goods,Journal of China Textile University,1996,13(2):20-26
[5]Demands for future spinning system and their spinning components concerning high quality,flexibility and low costs by various example applications.Schlafhorst 公司资料
[6]J.Kwasniak,Application of a Pressurized-Air Method of Fancy-Yarn Formation to Industrial Rotor-Spinning Machines,J.T.I.,1997,88(3),185-197
[7]J.Kwasniak,Fancy-Yarn Formation in Rotor Spinning by a Combination of Excess-Material Feeding and Pressurized-Air Injection,J.T.I.,1997,88(3),198-208
[8]周慈念.转杯纺的发展与应用.纺织导报,2002.4,44-48
[9]秦贞俊.转杯纺纱技术的发展.国外纺织技术,2002.10,1-6
[10]徐惠君.转杯纺纱现状及跨世纪发展.现代纺织技术试刊,1999,44-48
[11]杨家密.Autocor0360型转杯纺纱机的技术特点.棉纺织技术,2005.6,33(6):62-64
[12]崔运花译.Rieter:R40转杯纺纱机.国际纺织导报,2003.3
[13]陈守辉译.新型半自动转杯纺纱机.国际纺织导报,2006.3
[14]朱长惠,姜余庆.我国转杯纺纱技术的回顾与展望.棉纺织技术,1999.6,5-8
[15]周慈念.我国转杯纺纱发展与应用中值得注意的几个问题
[16]Thwaites J J.The mechanics of friction-twisting.J Text Inst,1970,61(3):116-138
[17]黄美林,狄剑峰.竹节纱的纺纱原理及常用纺纱方法研究.五邑大学学报,2005.6,19(2):30-33
[18]刘桂阳,张增强.竹节纱的生产方法.纺织导报,2005.9
[19]李雪刚,薛荣,薛南云等.转杯纺纱机生产竹节纱的原理分析.棉纺织技术,2004.1,32(1):22-26
[20]刘常威,文珊,俞加林.转杯纺纺制竹节纱的研制.湖南工程学院学报,2006.3,16(1):92-94
[21]陈荣佑,谭炎辉,林健培等.转杯纺竹节纱的生产.棉纺织技术,2005.11,33(11):45-47
[22]赵博,石陶然.转杯纺竹节纱的产品开发与工艺探讨.中国纤检,2003.12,35-37
[23]宋桂玲,沈长春等.改造转杯纺纱机生产竹节纱.山东纺织科技,2003.5,41
[24]王善元,杨国荣等.低捻转杯纺纱理论分析.中国纺织大学学报,1999.8,25(4):53-58
[25]王善元,杨国荣等.低捻转杯纺纱张力与断头分析.中国纺织大学学报,1999.6,25(3):19-22
[26]巴塔,黄秀宝.转杯纺自由纱段形态对其捻度分布的影响.中国纺织大学学报,2002,28(5):17-21
[27]巴塔,黄秀宝.转杯纺纱阻捻器阻捻系数理论分析.东华大学学报,2003.2,29(1):9-15
[28]汪军,黄秀宝.转杯转杯内纱段剥离点张力的分析.中国纺织大学学报,1999.8,25(4):59-63
[29]汪军,黄秀宝.转杯转杯内纱段捻度分布研究.中国纺织大学学报,1999,25(3):51-54
[30]庾在海,蔡旭初等.转杯内纱线形状及其张力分析.东华大学学报,2005.4,31(2):28-31
[31]王克勇,汪军,李立轻.转杯纺半自动接头模型探讨.棉纺织技术,2005.5,33(5):16-18
[32]黄艳丽,史志陶.转杯纺纱加捻效率分析.广西纺织科技,2001,30(4):17-21
[33]KRAUSE H W,SOLIMAN H A.Production oF Fancy Yams on a Rotor Open -End Opening Machine.TextiLe Praxis InternationaL Foreign Edition With EngLish,1982,4:339-347.
[34]汪军,黄秀宝.转杯竹节纱竹节参数的理论研究.中国纺织大学学报,2000,26(6):35-38,43.
[35]Thwaites J J.The mechanics of friction-twisting.J Text Inst,1970,61(3):116-138
[36]Postle R,Burton P,Chaikin M,et al.The torque in twisted singles yams.J Text Inst,1964,55(9):448-461
[37]Platt M,Klein G,Hamburger J,et al.Mechanics of elastic performance of textile materials,torque development in yams system:single yam.Textile Research Journal,1958,28(1):1-14
[38]张文庚,陈铭右,丁寿基等.纺织气流问题.北京:纺织工业出版社,1989:266
[39]Leaf G A V.The Friction Couple in Yarn Bending.J Text Inst,1995,86(1),45-54
[40]Grosberg P,Ho K H.the Geometry and Strength of Yarns With Special Reference to Rotor Spun Yarns,Applied Polymer Symposia,1977,31:83-89
[41]X.B.Huang.The effect of doffing tube design on the P.T.E length and yam properties in rotor spinning.University of Leeds,1982.1-76
[42]Vijai Pal Singh.The Twist Characteristics in Open-End Spun Yarns:[Doctorial Thesis].The University of Leeds,1980
[2]张百祥等,转杯纺纱,北京,纺织工业出版社,1990
[3]刑声远等,气流纺纱,北京,纺织工业出版社,1980
[4]Yang Jianping et al.,Practice of rotor spinning in producing silk noil yarn and the development in woven fabrics and knitted goods,Journal of China Textile University,1996,13(2):20-26
[5]Demands for future spinning system and their spinning components concerning high quality,flexibility and low costs by various example applications.Schlafhorst 公司资料
[6]J.Kwasniak,Application of a Pressurized-Air Method of Fancy-Yarn Formation to Industrial Rotor-Spinning Machines,J.T.I.,1997,88(3),185-197
[7]J.Kwasniak,Fancy-Yarn Formation in Rotor Spinning by a Combination of Excess-Material Feeding and Pressurized-Air Injection,J.T.I.,1997,88(3),198-208
[8]周慈念.转杯纺的发展与应用.纺织导报,2002.4,44-48
[9]秦贞俊.转杯纺纱技术的发展.国外纺织技术,2002.10,1-6
[10]徐惠君.转杯纺纱现状及跨世纪发展.现代纺织技术试刊,1999,44-48
[11]杨家密.Autocor0360型转杯纺纱机的技术特点.棉纺织技术,2005.6,33(6):62-64
[12]崔运花译.Rieter:R40转杯纺纱机.国际纺织导报,2003.3
[13]陈守辉译.新型半自动转杯纺纱机.国际纺织导报,2006.3
[14]朱长惠,姜余庆.我国转杯纺纱技术的回顾与展望.棉纺织技术,1999.6,5-8
[15]周慈念.我国转杯纺纱发展与应用中值得注意的几个问题
[16]Thwaites J J.The mechanics of friction-twisting.J Text Inst,1970,61(3):116-138
[17]黄美林,狄剑峰.竹节纱的纺纱原理及常用纺纱方法研究.五邑大学学报,2005.6,19(2):30-33
[18]刘桂阳,张增强.竹节纱的生产方法.纺织导报,2005.9
[19]李雪刚,薛荣,薛南云等.转杯纺纱机生产竹节纱的原理分析.棉纺织技术,2004.1,32(1):22-26
[20]刘常威,文珊,俞加林.转杯纺纺制竹节纱的研制.湖南工程学院学报,2006.3,16(1):92-94
[21]陈荣佑,谭炎辉,林健培等.转杯纺竹节纱的生产.棉纺织技术,2005.11,33(11):45-47
[22]赵博,石陶然.转杯纺竹节纱的产品开发与工艺探讨.中国纤检,2003.12,35-37
[23]宋桂玲,沈长春等.改造转杯纺纱机生产竹节纱.山东纺织科技,2003.5,41
[24]王善元,杨国荣等.低捻转杯纺纱理论分析.中国纺织大学学报,1999.8,25(4):53-58
[25]王善元,杨国荣等.低捻转杯纺纱张力与断头分析.中国纺织大学学报,1999.6,25(3):19-22
[26]巴塔,黄秀宝.转杯纺自由纱段形态对其捻度分布的影响.中国纺织大学学报,2002,28(5):17-21
[27]巴塔,黄秀宝.转杯纺纱阻捻器阻捻系数理论分析.东华大学学报,2003.2,29(1):9-15
[28]汪军,黄秀宝.转杯转杯内纱段剥离点张力的分析.中国纺织大学学报,1999.8,25(4):59-63
[29]汪军,黄秀宝.转杯转杯内纱段捻度分布研究.中国纺织大学学报,1999,25(3):51-54
[30]庾在海,蔡旭初等.转杯内纱线形状及其张力分析.东华大学学报,2005.4,31(2):28-31
[31]王克勇,汪军,李立轻.转杯纺半自动接头模型探讨.棉纺织技术,2005.5,33(5):16-18
[32]黄艳丽,史志陶.转杯纺纱加捻效率分析.广西纺织科技,2001,30(4):17-21
[33]KRAUSE H W,SOLIMAN H A.Production oF Fancy Yams on a Rotor Open -End Opening Machine.TextiLe Praxis InternationaL Foreign Edition With EngLish,1982,4:339-347.
[34]汪军,黄秀宝.转杯竹节纱竹节参数的理论研究.中国纺织大学学报,2000,26(6):35-38,43.
[35]Thwaites J J.The mechanics of friction-twisting.J Text Inst,1970,61(3):116-138
[36]Postle R,Burton P,Chaikin M,et al.The torque in twisted singles yams.J Text Inst,1964,55(9):448-461
[37]Platt M,Klein G,Hamburger J,et al.Mechanics of elastic performance of textile materials,torque development in yams system:single yam.Textile Research Journal,1958,28(1):1-14
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