Research On Improvement Of TR Company’s K2 Crankshaft Production Line Based On Value Flow Chart

In recent years,the ravages of the epidemic and the constant changes in the international situation have led to the depression of the global market,and enterprises are facing increasing pressure of competition.The challenge for manufacturing is particularly acute.Customers have higher requirements for personalized products,and the traditional large-scale and extensive production is gradually replaced by small-batch and diversified production mode.All this prompts manufacturing enterprises to constantly find effective ways to deal with challenges.Therefore,the lean production method,which can reduce production costs,improve productivity and shorten delivery cycle,has been recognized by more and more enterprises.As a powerful means to implement lean production in manufacturing enterprises,value flow chart is also recognized and used by more and more enterprises.TR Company as a crankshaft,connecting rod as the main products of the manufacturing enterprise,in the industry occupies a high position.However,with the increasingly fierce market competition,in order to maintain the position of the company’s products in the industry and improve the competitiveness of the enterprise,it is necessary to optimize and improve the production process of the product,improve the output and production efficiency.In this paper,TR Company K2 crankshaft production line as the research object,using the value flow chart,production line balance and other lean tools and methods,in accordance with the guidance of lean production thought,to analyze its production process,find out the production process of low efficiency,waste more problems.Summarize the causes of waste is the production process cumbersome and miscellaneous,low balance rate of the production line,improper layout of the workshop,the site management system is not perfect.Take measures to address these reasons.For the problem of miscellaneous processes,the"ECRS"principle,5W1H question method to reasonably adjust and simplify the process flow;For the low balance rate of the production line,increase the equipment,set up"water spider"and other ways to balance the working load of each process,improve the balance rate of the production line;The SLP method is adopted to rearrange the crossing and repetition of logistics lines in the layout of workshop,eliminating the phenomenon of crossing and repeating logistics lines and shortening the logistics distance.In order to ensure the effectiveness of the optimization scheme,Flexsim simulation software was used to verify the optimization effect,the production effect before and after optimization was compared and analyzed,the future value stream map was drawn,and the safeguard measures were developed.By comparing the production effect before and after optimization,it can be seen that lean improvement based on value flow chart can reduce the non-value-added time in the production process of K2 crankshaft,shorten the product delivery period,improve the balance rate of the production line,reduce the production cost,and improve the value-added ratio and production efficiency.At the same time,the improvement experience of K2 crankshaft production line can provide a reference for the optimization of other crankshaft production lines in the company,and also provide a theoretical basis for the improvement of other products of the company.