Optimizing Production Line Balance Based on Witness Simulation

Abstract

Based on the current LCD (Liquid Crystal Display) module production line type S-S00A(SEL315V3-S00A), this paper studies the production line of liquid-crystal module with the method of industrial engineering and simulation method. Firstly, the process of the production line of the liquid crystal module is analyzed, and the cycle time of the production line is measured in 24 seconds, and the rate of the production line balance is 60.3%. With the witness software simulation platform used, it is found that the working hours are not high and the proportion of idle time is about 40%. The production process of liquid-crystal module production is analyzed by process analysis. Combining the 5W1H (What, Why, Where, When, Who, How) question technology and ECRS (Eliminate, Combine, Rearrange, Simplify) principle to optimize the production process, the processes cancel 3 times handling, cancel 5 times checks, merge several operations, and reduce the five workers. Finally, simulation model of optimized production line of liquid-crystal module is established, and the simulation results show that the workload for each station basic at 80%, improving the utilization rate of hours. The cycle time of the optimized liquid crystal module production line is 18 seconds. The production line balance rate is 85.56%, increasing by 25%.