桑皮纤维.doc

-1-盐城纺织职业技术学院2012届学术论文题目：细纱机附加压力棒实验分析姓名：陈花学号：09104203专业班级：纺贸912指导教师：周彬2011年06月细纱机附加压力棒实验分析摘要-2-摘要为进一步改善细纱条干水平，通过分析细纱牵伸区附加压力棒的牵伸机型，并对加装压力棒前后纺纱条干的质量进行了试验对比。试验证明：细纱牵伸区装加压力棒后，不仅成纱的质量有了明显提高，而且可提高细纱牵伸倍数，减少前纺设备投入。同时提出细纱压力棒配置和使用时应注意的问题，以便更好的发挥压力棒牵伸作用。同时介绍了压力棒隔距块的结构及特点，分析了细纱机前区附加压力捧隔距块的作用原理。在后区为平面牵伸和V型牵伸的机型上，前区使用压力棒隔距块来进行CJ14.5tex的纺纱试验，结果表明：细纱前区附加压力棒隔距块后成纱的质量都有明显改善，且平面牵伸形式改善效果更明显。指出在使用压力棒隔距块时要注意的问题，说明压力棒隔距块很经济实用，是一种值得推广的新型纺纱器材。关键词：细纱；压力棒；牵伸机理；质量对比；配置原则;压力棒隔距块；前牵伸区；成纱条干；牵伸倍数；纺纱实践细纱机附加压力棒实验分析Abstract-3-AbstractToimproveyarnevenness,throughanalysisingadditionalpressbardraftingprincipleinspinningdraftingzone,contrastingtestofyarnevennesswerecarriedoutbeforeandafterinstallingpressbar.Theresultshowsthatafterinstallingpressbarinspinningdraftingzone,notonlyqualitycouldbeimprovedbutalsospinningdraftingmulticouldbeincreasedandfrontspinningequipmentscouldbedecreased.Problemsthatshouldbenoticedinusingandassortingspinningpressbarwereputforwardsimultancesoastomakefullusepressurebardraftingfunction.Introduction15madetothestructureandthefeathersofthepressbarspacerregardingtheworkelementinspinningprocess．SpinningyarnCJ14.5texwiththeframeswithflatdraftandshapedraftintherearsectionprovesthatthere15markedqualityimprovementofyarnwhenthepressbarspacer15usedinthefrontsection,yettheflatdraft15better.Somecautionsareputforthforusingthepressbarspacer．Conclusion15madethatthepressbarspacer15practicalandeconomic，thusworthyofbeingpromoted.Keywords:spinningyarn:pressbar;DraftingMechanism;Qualitycontrast;Assortingprinciple;pressbarspacer;frontdraftsection;evenness;draftmultiplyspinningpracticeWrittenby:ChenHuaSupervisedby:ZhouBin细纱机附加压力棒实验分析目录-4-目录摘要............................................................................................................................................................2ABSTRACT..............................................................................................................................................3第一章绪论..............................................................................................................................................51.1压力棒隔距块的结构与特点..........................................................................................................51.2附加压力棒隔距块的作用机理......................................................................................................51.3附加压力棒隔距块作用机理分析.................................................................................................6第二章前区纺纱实践..............................................................................................................................72.1前区附加压力棒隔距块纺纱实践.................................................................................................72.1.1实验方案..................................................................................................................................72.1.2测试仪器..................................................................................................................................72.1.3测试条件..................................................................................................................................73.1细纱前区附加压力棒实验.............................................................................................................83.2使用前区附加压力棒隔距块注意事项..........................................................................................9第三章后区V型牵伸...........................................................................................................................104.1后区牵伸的概念...........................................................................................................................104.2后区V型牵伸实验.......................................................................................................................104.3V型牵伸成纱性能实验................................................................................................................114.4V型后区牵伸原理........................................................................................................................11第四章后区附加压力棒隔距块的作用机理........................................................................................125.1V型牵伸后区附加压力棒牵伸机理.............................................................................................125.2细纱牵伸后区附加压力棒实验...................................................................................................125.3后区附加压力棒注意事项...........................................................................................................135.4后区附加压力棒原理分析...........................................................................................................13第五章结束语........................................................................................................................................14参考文献..............................................................................................................................................15致谢............................................................................................................