Design On Coiling Tension Control System Of 0.35Mt GL For The Cold Rolled Steel Strip In TISCO

Cold-rolled galvanized steel is widely used in various fields of industrial production,is a very important raw material.With the level of China's industrial modernization continues to improve,the market demand for cold-rolled sheet and strip continues to increase,applications also will be widened.Currently,cold rolled and galvanized sheet by virtue of its size and high precision,excellent surface quality,strong mechanical properties,etc.,is already home appliances,electronics,automotive,aerospace,shipbuilding and other manufacturing industries daily necessities indispensable material.Coiling link is cold-rolled galvanized steel production process is a very important process,it will play a decisive role for the product quality.And stable winding tension will have a huge impact product flatness,thickness and quality.In this thesis,rolled galvanized steel production process as the research background,in-depth analysis and research of cold rolled and galvanized wire coiling tension control system characteristics and control approach to Siemens S7-400PLC to control the core to achieve the coiling process constant tension control objectives.Specific steps are summarized as follows:(1)Based on cold-rolled galvanized steel take-up control system requirements,analysis of the mechanism of cold-rolled strip coiling tension generated by the basic principles drawn coiler constant tension control is proposed to realize coiling tension control system design.(2)Constant tension control based on indirect methods coiling tension mathematical models and systems used to analyze the changes in the take-up reel diameter and dynamic torque compensation process problems and solutions.(3)Use the tools of Matlab,emulate and analyse the result.(4)Through the system hardware selection and system function parameter settings and other steps,complete hardware system design coiling tension control system.(5)Use S7-400PLC of STEP7 programming software to finish hardware configuration,and complete design main strip coiling tension control system,closed-loop control and interface communication and other procedures,and finally achieve the upper monitored by IPC WinCC monitoring system,and then completed the design of the entire cold rolled and galvanized line tension control system.