The use of automatic line for production of the product should be large enough to yield; product design and process should be advanced, stable, reliable, and kept in a long time basically unchanged.The use of automatic line in large, mass production can improve labor productivity, stabilize and improve product quality, improve working conditions, reduce the production area, reduce the production cost, shorten production cycle, to ensure balanced production, with significant economic benefits.
The process of automatic production line without human intervention by program or the provisions of the directive is automatic operation or control, its goal is "steady, quasi, fast". Automation technology is widely used in industry, agriculture, military, scientific research, transportation, commercial, medical, service and family etc.. The use of automatic production line can not only make people from the heavy manual labor, some mental work and the bad, dangerous working environment of liberation, but also can expand the function of the human organs, greatly improve the labor productivity, enhance human understand and change the world.