Research Of Control System And Key Technology Of Filling Machine

Filling is an important part of pharmaceutical packaging. The development of filling machine in the global pharmaceutical industry has gained more and more attention. Domestic filling equipment of manufacturing enterprises may set of equipment, production lines can satisfy demand, but the product specification is not complete, the control and automation level is low, Single performance is unstable, the advanced technology is seldom used. And the filling speed focuses on medium and low levels. The quality of filling machine in filling accuracy and stability has a certain gap with imported equipment. In the design, some of the key components are still in the imitation of the manufacturing stage; especially the design capacity of high-speed filling has a big gap.In view of the above situation, combining with the actual demand, in the enterprise development design of domestic 12 needles block line filling machine, on the basis of the study of 12 blocks straight needle dial filling machine adopts the servo control design, and work out relevant software program, complete the bottle, bottle, filling and partially stoppered, online weighing and reversing out bottle, such action without bottle filling, not without bottle don't jump the queue and on-line detection function, and in five bottles/minutes under high-speed filling speed, efficient, stable precise filling. Aiming at 12 blocks straight needle dial fill the key tracking system, establish tracking system model, tracking algorithm theory in filling machine especially tracking speed filling in the high stability and precision can be run.Firstly, clear the system hardware requirements. Include determining filling machine process requirement, filling machine equipment status and statistical system I/O points and species. Then, hardware configuration, programmable controller, I/O point definition and main component selection and arrangement.Secondly, with the hardware configuration, software of the system is designed and implemented. Firstly, the control process analysis of man-machine interface design, finally compiled the corresponding software 12 blocks straight needle dial filling machine control process.Finally, this paper studied the tracking control technology perfusion. The filling machine tracking system, analyzed the state of motion in moving parts, filling machine, and the servo tracking model with servo positioning module and servo system control requirements, the tracking system determine the servo motor cooperative work and forms of exercise, establish special for the 12 blocks straight needle dial filling machine, rendering the tracking algorithm theory, servo motor sports curve realization of automatic tracking system of filling machine completely control servo.This system is achieved the design requirement, is expected to obtain industrial operation.