卷烟厂物流库夹抱合分机控制方式的改进

Improvement of Control Mode for Clamping Machine in Logistics Depot of Cigarette Factory

为解决制丝车间物流库夹抱合分机在升降过程中存在的忽然坠落问题,对夹抱合分机的控制方式进行了改进。将夹抱合分机升降减速机的抱闸控制方式由单纯的PLC延时程序控制改为变频器内部逻辑控制与PLC程序控制相结合;通过调整变频器抱闸控制参数并修改相应的控制程序,实现对夹抱合分机升降减速机抱闸时机的准确控制。应用效果表明,改进后的物流库夹抱合分机运行效果良好,坠落现象由改进前的每月6次左右减少为0次,有效防止了设备损坏,每年可节约维修费用约30万元,提高了设备有效作业率。

To avoid suddenly dropping during descending or ascending,the control means of the clamping machine in depot of primary department was modified.The clamper control was changed from PLC time delay sequential control to PLC sequential control combining with in-converter logic control.The accurate control of right clamping time was achieved by setting the control parameters of the frequency converter and modifying the relevant control program.The results of application showed that the improved clamping machine ran well,the incidence of unexpected drop decreased to 0 from 6 times/month,the equipment damage was effectively avoided,the maintenance cost was reduced by about 300 thousand RMB yuan per year,and the machine efficiency was increased.