Analysis and Improvement of an Enterprise Production Line Based on the Technology of Value Stream Mapping

With the rapid development of the global economy, the competition among manufacturing enterprises is becoming more and more fierce. Many enterprises begin to worry about the economic status and pay attention to the improvement and management of the production process existing in the production system. Taking a mobile phone loudspeaker production enterprise as the research object, after investigation and research for some days in the company, the paper analyzes the whole process of production. By using the value stream mapping analysis technology, the paper draws up the value stream mapping of production status, calculates takt time of this production line, and analyzes the bottleneck process existing in the production system of enterprises. With the knowledge of industrial engineering, the paper deletes and combines the working procedure, optimizes the problem of the bottleneck procedure, changes the push production into the pull production to improve the production line, then draws up the company's future production value stream mapping, in this way, the manager can intuitively see the implementation situation of improvement programs in the production line. Lastly the paper makes a comparison and analysis between the production status before and after improvement.