Reaseach On Control System’s Key Technology Of Bandage Cutting Machine

Bandages are common medical supplies, but the production efficiency of bandage is very slow, one of the biggest obstacles is bandage cutting technology. Multi-wire cutting technlogy is a new cutting technology, now it is mainly used for cutting of semiconductor, materials can be sliced into number of copies one time, this feature is very suitable for cutting bandage, if multi-wire cutting technology is applied to cut bandage, it must improve the cutting efficiency of bandage.In this paper, mechanical structure and control method are sdutied, focus on the reaserch of bandage cutting machine’s wire’s collecting and seding control system, the key technologies of system is analyzed:tension control, the communication of the upper and lower computer and motors’synchronous velocity control.In this paper, tension of bandage cutting machine is sdutied at first, the reason of tension fuctuation is the difference between motors’synchronous velocity, tension is simulated and analyzed based on PID and Fuzzy-PID algorithms, the result is the control effect of Fuzzy-PID algorithm is better than PID algorithm, it can meet the requirements of the control system.In this paper, the serial port communicationof Lab VIEW and PLC based on VISA is realized, in order to verify the effect of motors’synchronous velocity control by Fuzzy-PID controller, synchronous velocity control system is designed for test, hardware system is built, using LabVIEW writingFuzzy-PID controller, using WPLSoft writing the ladder program of the lower computer.Test Results show that Fuzzy-PID controller reduced the following error of two motors’synchronous velocity, Fuzzy-PID controller could control tension fluctuation of system is verified.