การจัดผังการผลิตด้วยเทคโนโลยีกลุ่มสำหรับโรงงานผลิตเครื่องมือแพทย์

Abstract

The aim of this study was to organize the machines of medical devices factory by applying of group technology to reform production layout and assess production capacity through latest production layout in part of blood collection tube production with the bottleneck model. Owing to the discontinuous process problem, the long range material handling problem and the complicated product design, the preparation processes or changing production takes so long time. The study started with the classification of 8 product groups. Then, the layout diagram of 22 machines was provided. After that, flowchart of the continuous process, group management (based on group technology principal) and the problem solving by using bottleneck model was exploited. The results showed that, before improvement, the part handling was not relate to the machine layout and the utilizing of flexible manufacturing was 12.07 %. As the improved process based on the bottleneck model, the results showed that it could categorized product groups and the related machines into 3 groups. The amount of products increased 3,960 pieces/month. The utilization of flexible manufacturing is increased to 44.04 %. The investment in real working area improvement with 2,066,666.67 Baht, which is increased average amount of products by 3,771 pieces/month and the return of investment rate is 82.11 % with 15 months payback period. 

Keywords: group technology; bottleneck model