【作者】 夏飞；

【导师】 朱苏康；

【作者基本信息】 东华大学 ， 纺织工程， 2004， 硕士

【摘要】 随着国内纺织市场的竞争日益激烈，产品品种开发及变化的节奏也逐渐加快，以及小批量的定单不断出现，原有的分批、分条整经机已经无法满足需要，试样整经机应运而生。试样整经机具有品种适应面广、反应速度快、耗纱少及筒子数量少等独特的优点，逐渐受到纺织企业的青睐。然而，这是一种处于不断完善中的机型，国内外相关的研究资料极少。目前，只有德国卡尔—玛雅(Karl-Mayer)或日本铃木(Suzuki)公司的产品。国内有厂家批量试生产，但技术落后、规模很小。对于这种新颖的整经设备，还存在一些关键技术有待解决。 本课题详细叙述试样整经机的分类，各种试样整经机的工作原理，以及关键部件的结构和作用，通过比较它们的优劣，提出了试样整经机的发展趋势：纱线张力均匀、波动小；增加整经长度；高产、智能化、自动化。然后，针对几个设备技术进步中的关键技术问题进行理论分析，并提出相应的改进措施，主要包括以下内容： 1．斜板的各个工艺参数的选择。首先列举了试样整经机对斜板的要求，即a．纱线可以在斜板上滑移；b．纱线的速度不能太小，否则斜板上易发生纱线堆积，甚至缠绕；c．斜板的斜角θ不大于60°(受机器空间的限制)。然后，对前两个要求展开讨论，将所求的θ的极限值综合，可获得θ的取值范围是(28°，60°)。 最后，用实验加以验证θ的下限，结果表明，该取值范围是可行的。 2．分析以往两种试样整经机，即定幅卷绕试样整经机、规整卷绕试样整经机。指出这两种整经机的利弊，及其成因。同时，提出一种新型的卷绕方法——定幅规整卷绕法(该方法已申请专利，专利申请号为03141782.5)，并推荐了相应的机械结构； 3．从筒子架到支撑盘之间，绕纱路线的长度变化会影响张力的均匀性。对此本文作了理论和实验分析。为消除这种张力不匀，必须在绕纱机构上实现理想的绕纱路线。然而，在现有的机型上是无法实现的。为此，本文提出一种新的试样整经机的绕纱路线——转盘式复合绕纱路线(正在申请专利)，可完全实现理想的绕纱路线，完全消除了因绕纱路线长度的变化引起的张力不匀。 4．在DH—3型试样整经机的运行中，会经常发现分绞时纱线张力过大的现象。本文详细叙述了这种现象，通过理论研究及实验分析解释其起因，并提出摘要相应的改进措施，即加装分绞张力补偿器。设计的分绞张力补偿器有两种:普通型和改进型。。 综上，通过对四个关键的技术问题研究，本文为新一代试样整经机的设计和使用开辟了具有一定参考价值的研究路线，同时为后人进一步研究提供了理论基础和研究方法。更多还原

【Abstract】 As the competition in Chinese textile market becomes fiercer and fiercer, the life-span of products becomes shorter and shorter. Small-batch orders occur more frequently than before. Beam warpers and section warpers can no longer satisfy new needs. So sample wipers are needed. Because of its fitness to many kinds of yarn, quick response, less yarn consumption and less bobbins, the sample warper is welcomed by many textile mills. But as a relatively new machine, little information about it is available. Now only two companies, Karl-Mayer in German and Suzuki in Japan, can make it. Through some civil factories try hard to make it. Some key questions are waiting to be resolved.At first the classification, principles and some key parts of sample warper are introduced in this paper. Then through comparing different sample warpers, the trend of sample warper is pointed out. The trend is that a sample warper must have homogeneous tension, long warper length, and high productivity, and should be intelligentized and automatized. Then aiming at some key questions in machine design, this paper will bring forward some suggestions:1. Determination of some parameters of bevel board.The parameters of bevel board are determined according to the requirements of sample warpers.a. the yarn can run on the bevel board;b. the speed of yam mustn’t be too low. Otherwise, a irregular order of yarn will happen;c. the obliquity of bevel board mustn’t exceed 60,because of the limit of machine’s room.Then the paper will analyse the requirements a and b respectively. And itconcludes that (28 ,60)At last the limit of will be proved by some experiments;2. Comparing two kinds of sample warper: stentering winding sample warperand regular winding sample warper, this paper point out their shortcomings. Then this paper proposes a new winding way: stentering regular winding sample warper. This way is patented, whose code is 03141782.5. And this paper recommends a mechanism to realize it.3. The homogeneous of tension change with the length of yarn from warp creel to face board. This paper analyses the phenomon. and carries out some experiments for it. And concludes that for eliminating this irregularity, we must realize an ideal route of yarn in the sample warper. As is impossible for current machines this paper suggests a new way-turnplate creel to realize the ideal route, and eliminate this irregularity;4. Too high yarn tension which often occurs in its use, is a major disadvantage of a DH-3 sample warper. The paper gives a detailed description of the phenomenon. The causes are found by analyses and experiments. Then a solution is brought forward. It is leasing tension compensator. And it has two models: normal and betterment.In a word, through analyses of the four key problems mentioned above, this paper points a way for designing and using new sample warpers. And it offers a theory base to studies in the future..Xia Fei(Textile Engineering) Supervised by Zhu Sukang更多还原