The Study Of SMED Improvement Of A Product Line In L Company

Chinese automobile industry experienced the first decline in 2018,and the data is still not optimistic 2020.In addition,the current trade friction between Sino US、Covid-19 、Plus the decline in economic growth and some of other factors also have a greater impact on the automotive industry.On the other side,with the increasing income of the people,people’s yearning for a better life has been intensified,and their demand for high quality life has become higher.They not only require for high quality daily necessities,but also diversified and personalized commodities,even for commodities such as automobiles.Therefore,the supply relationship of automobile market has changed from seller’s market to buyer’s market.In order to meet the increasingly diversified and personalized needs of customers,automobile enterprises increase product development efforts,constantly develop new products,and almost supply new model to the market by year.As a result,the volume of auto parts is constantly decreasing,the variety is more diversified,and the delivery time is shorter.With the influence of this trend,multi variety,small batch and short delivery orders become the norm for Automotive components suppliers.That becomes a big challenge for the auto parts manufacturing industry.Single minute exchange of dies(SMED)is one of the core tools of lean production.It was created by a Japanese people Shigeo Shingo.Because SMED makes it possible for Toyota to continuously produce small quantities and varieties,it also makes the production value stream flowing.In this case,it raises the necessity of lean improvement of production Through the analysis of the current situation of L company,and then finds out the key problems in the production process through the analysis of value stream chart.The value stream chart provides a theoretical basis for the improvement of SMED of the production line.After that,special research and analysis were carried out for the SMED improvement,and implements the improvement of it.First,by dividing internal and external operations,external operations are prepared in advance to reduce downtime;Second,parts of the internal operations are converted into external operations to further reduce internal operation time and downtime;Third,implement parallel operations by multi people,to shorten the time leading to downtime;Fourth,optimize the internal and external operations to minimize the production line changeover time.By shortening the changeover time,we can greatly improve the flexibility of manufacturing,and shorten the delivery time of products,to increase the speed of response and customer satisfaction.