Design of cylindrical tank automatic spraying device control system

 

 

WANG Chun, LI Zheng, LIN Sheng

 

(School of Mechanical Engineering, Dalian Jiaotong University, Dalian 116028, China)

 

 

Abstract: Aiming at the high quality requirements of the large cylindrical tank paintcoat and the difficulties of the surface spray coating, an automatic spraying system based on programmable logic controller(PLC) was proposed. For the spraying device, an axis driving cylindrical tank rotation named A, three axes driving spray gun space movement named X, Y, Z, an axis driving spray gun swing named C and the frame were designed. For the control system, PLC, FM 3572 MultiAxis Module and Wincc flexible were put to use for developing the spray master program and the positioning module NC program, researching the humancomputer interaction program and the script program for controlpoints calculation, and dominating the motion of X、Y、Z、A、C axis. Consequently, the Spiral Spraying of the tankbody and the Contour Spraying of the bottom surfaces can be accomplished. The results indicate that the system can be applied to different sizes of cylindrical tanks, has multiple controllable parameters and friendly humanmachine interaction. Comparing with the traditional manual spraying method, using the automatic spraying system can reduce the labor intensity of the workers, improve efficiency and production quality of spraying.

 

Key words: cylindrical tank; PLC; FM3572 multiaxis module; automatic spray system