Research On Key Technology And System Reliability Design For Special Pattern Sewing Machine

In this paper, the special pattern sewing machine is the main study object, and keytechnology of the machine is studied based on the device structure features and processrequirements. To deal with the hook line synchronization control, synchronization controlsystem is designed based on coupling compensation control algorithm; taking the main functionof the device into consideration, control software design scheme is proposed and completed;anti-jamming design and thermal design method is utilized for system reliability design.To deal with the hook line synchronization control, based on motor mathematical modeland coupling compensation synchronous control algorithm, synchronization control system isachieved by the establishment of special sewing pattern synchronization control model. On thebasis of analyzing the main process and workflow of the device, software design solution isproposed and system program based on VC++is completed to achieve the device control. Usingsystem reliability theory, anti-jamming design and thermal design method of control system isproposed. According to interference of the control system and the power consumption of eachmodule, anti-jamming design is completed based on filtering technology, grounding technologyand shielding technology; control system thermal design is completed based on forced coolingmethod and simulated annealing algorithm.And ultimately system reliability is improved.Finally, the availability of the equipment functions is verified by the system softwaretesting and the reliability of system is guaranteed by high-strength testing. The results show thatspecial design pattern sewing equipment has good functionality and stability.