精益生产在WCN公司挂件生产线优化的应用研究

发布时间：2018-11-20 09:24

【摘要】：随着电梯制造业的市场逐步饱和制造商们迎来了激烈的竞争,WCN公司正面临着同样严峻的挑战。一方面有限的产能无法满足订单的需求,另一方面严重的浪费导致成本的居高不下,对企业的运营和盈利能力提出了严峻的挑战。因此,对现有的生产线应用精益生产的方法进行优化从而提高产能减少浪费是必须解决的问题。本文运用精益生产的理论知识,再结合WCN公司AA挂件生产线目前遇到的问题进行研究,通过对挂件组装的线平衡和流水线布局进行分析,找到问题的根本原因和突破口。重点分析出生产线中的目标节拍时间以及相对应的瓶颈工位的掣肘,通过消除瓶颈工位存在的浪费来实现线平衡的改善,从而使得产线的节拍时间符合需求；同时针对流水线布局问题,采用产品布局的原则,改善原有的备料、送料的环节,并整合钢丝绳安装和横梁装潢等工位使得生产线物料流更加合理。通过以上的改善,产能和效率得到了提升,同时制造过程中的诸多浪费也得到了改善。该问题的研究对于WCN公司的提高产能减少浪费有着非常重要的意义,同时对于其他准备着力推行精益生产的企业也有一定的借鉴意义。
[Abstract]:WCN is facing a similar challenge as the market for elevator manufacturers is gradually saturated with fierce competition. On the one hand, limited production capacity can not meet the demand of orders, on the other hand, serious waste leads to high cost, which poses a severe challenge to the operation and profitability of enterprises. Therefore, it is necessary to solve the problem of optimizing the existing production line using lean production method to improve production capacity and reduce waste. Based on the theoretical knowledge of lean production and combined with the problems encountered in the AA pendant production line of WCN Company, this paper analyzes the line balance and assembly line layout of pendant assembly, and finds out the root cause and breakthrough of the problem. Focus on the analysis of the target beat time and the constraints of the corresponding bottleneck work station, by eliminating the waste of the bottleneck station to achieve the improvement of line balance, so as to make the production line beat time in line with the demand; At the same time, aiming at the problem of assembly line layout, adopting the principle of product layout, improving the original material preparation and feeding links, and integrating steel wire rope installation and beam decoration, the production line material flow is more reasonable. Through the above improvements, productivity and efficiency are improved, and many waste in the manufacturing process are also improved. The study of this problem is of great significance for WCN to improve production capacity and reduce waste, and it is also useful for other enterprises that are preparing to implement lean production.
【学位授予单位】：华东理工大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：F273;F416.4

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