Study On Tension Control Of Automatic BOPP Tape Cutting Machine

With the rapid development of packaging,especially the express industry,the demand for the quality and quantity of adhesive tape is increasing.At the same time,the demand for tape making equipment is also increasing.At present,the production efficiency of the tape making equipment on the market is low,and problems of the adhesive tape produced in the market are widely existed,such as bubbles,loose winding and so on.According to the analysis of automatic equipment company in Nan Jing,Jiang SU province,Zhejiang Hangzhou Dahua mechanical and Electrical Technology Co.,Ltd.and Jiangsu Suzhou sky drill.ect companies equipment performance and the articles including ? Research and implementation of tension control system for slitting machine ???Research on taper tension control in gravure press???Research on tension control system of intaglio machine?research production,the tension control system plays an important role in the production efficiency and product quality of the tape machine.Based on the existing belt making equipment in Dongsheng belt factory of Hebei,starting from the angle of tension control system,this paper puts forward the overall improvement design plan of tension control system.Based on the scheme established,the mathematical model of tension control element has been set up.Tension control algorithms during rewinding and unwinding process are studied.The fuzzy self-tuning PID control algorithm and integral separation PID algorithm are used in this paper to control the tension system.And paper uses Simulink to simulate these algorithm.According to the mechanical structure of the tension system,modal analysis of the key parts of the system tension detection roll and rewinding shaft is carried out by ANSYS,and vibration test is carried out on the improved machine.Based on the control method and simulation results,the tension control system of the tape cutting machine is improved.The running experiments show that the improved tension system has good stability.The sample produced is significantly tighten and the bubble is reduced compared with the equipment before improvement.After improvement,the running speed of the device reaches 300m/min,which is 50% higher than the original speed.The innovations of this paper are as follows: 1.Pneumatic mechanism is used to loading and unwinding rewinding instead of manual;2.Pneumatic mechanism is used to automatically adjust the cutting pitch instead of manual.