Research On Optimization Of Mixed-flow Assembly Line Of A Company

With the "14th Five-Year Plan" and "Made in China 2025" put forward,the state has put the "implementation of manufacturing power strategy" in a more prominent position.The manufacturing industry is a pillar industry in my country and has a profound impact on the country’s economic development.In the past,the general assembly method of traditional manufacturing enterprises was a single assembly line for mass production and assembly.With the continuous changes in user needs and the gradual intensification of market competition,the mixed assembly line as an efficient production method gradually replaced the single assembly line.It is widely used in the industry.However,because the mixed-flow assembly line can assemble different types of products,these products have a certain degree of commonality,which makes this assembly line more cumbersome and complicated than a single assembly line.Therefore,how to optimize and improve the mixed-flow assembly line so as to improve its assembly efficiency to further meet the needs of consumers is a problem that the current manufacturing industry needs to pay attention to.Company A is a manufacturing company that produces and assembles reducers.One of its mixed-flow assembly lines mainly assembles two types of reducers.The production process has problems such as long production cycles,low production capacity,and high equipment vacancy rates.Therefore,analyzing and optimizing the assembly line to increase the production capacity of the assembly line and reduce the idle rate of equipment has become a problem that Company A needs to solve urgently.This paper takes the mixed-flow assembly line of gear reducer of Company A as the research objective,and finds out the problems existing in the current mixed-flow assembly line by collecting the data of the current mixed-flow assembly line.First,complete the analysis of the operation unit of the reducer mixed-flow assembly line,and draw its comprehensive correlation diagram,and then optimize the design of its workshop layout;then,through the process program analysis,the processing operations are divided,and the 5W1 H and ECRSI principles are used to analyze It performs process optimization;then,combines simulated annealing with traditional genetic algorithm to design a hybrid genetic algorithm,and uses the designed hybrid genetic algorithm to redistribute the process to obtain the best allocation plan,thereby minimizing assembly cycle time and efficiency;Finally,use Flexsim to complete the model comparison of the mixed assembly line before and after optimization to verify the optimization effect.After the optimization of the mixed-flow assembly line for the reducer of Company A,the layout of the workshop was optimized,reducing the logistics transportation distance of the assembly line,and avoiding the chaotic cross phenomenon in the material transportation process;the assembly efficiency and balance rate of the assembly line were improved to ensure timely delivery Goods,reducing the idle situation of the equipment.The research on the mixed-flow assembly line of gear reducer in this paper provides a reference for other manufacturing companies to solve similar problems,and provides certain guidance for the optimization of mixed-flow assembly line.