毕业论文--纺纱机的机构设计和仿真

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1、摘 要 该课题来自于横向课题，旨在对现有纺织机械中的马尾纱包芯纱纺织机器需要大量人工、纱织产品规格单一质量不稳定的问题进行综合评述和论证，研究出一种可替代人工的马尾纱包芯纱自动纺织机器，拟解决纺织机大量需要人工的瓶颈问题。 首先， 对现有纺织机进行了利弊讨论，进而找到其需要改进的问题，马尾输送 是改进的关键。其次，就现有常用的输送方法摩擦、振动、气流、夹取进行对比分析讨论，最后 对 夹取机构 这一关键部件进行了设计。通过 对夹取机构 的设计方案 进行讨论， 最终选择由了凸轮机构 和曲柄滑块组合，并对其运动协调性分析。论 文还 对凸轮连杆和曲柄滑块组合机构进行运动分析 ，对马尾提取机构的 凸轮廓

2、线 进行了 设计， 并对 整个机构 进行了 动力优化分析。 最后，对设计的马尾纱包芯纱自动纺织机夹取机构进行虚拟样机设计 。 关键词： 机械设计；机械原理；纺织；纺织技术；纺织机械 ； ABSTRACT This subject from horizontal topic, the aim is to carry out a comprehensive review and verification to the existing textile machinery that horsetail core textile machinery needs a lot of the labor c

3、ost, knitting yarn products, uniform and mass instability. Consequently developed an automatic textile machine to alternative artificial horsetail core yarn machine to solve. First, discussing the advantages and disadvantages of horsetail core textile machinery, and then finding the problems which n

4、eed to be improved, the means of horsetail conveying is the key is to improve. Second, as to existing commonly used method conveying which includes friction, vibration, air, and clip to carry on the analysis to discuss, and design the key components of clip institutions. Through discussing the schem

5、e about the design of clip institutions, and finally choosing the combination of cam linkage mechanism and slider-crank mechanism. The designing needs to proceed the movement coordination analysis. This paper also needs to carry through motion analysis for cam linkage mechanism and slider-crank mech

6、anism, and design cam contour line for extraction organization, and work at dynamic optimization analysis for the combination mechanism. Finally, design the virtual prototype for the design of the automatic clip institutions of the horsetail core textile machinery. Keywords: Mechanical design； Mechanical principle； Textile； Textile technology； Textile machinery；