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APPLICATIONS
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Name:科沃AD800矢量型变频器拉丝机应用方案

该设备由活套、放卷筒和七个拉丝卷筒组成,根据要生产线材的规格,在各道卷筒前面安装相应的拉丝模,拉丝模由大到小,到最末一道为所要求规格的产品线径。线材由活套经放卷筒出来后经过第一道拉丝模到第一个卷筒,从第一个卷筒再到第二个拉丝模,这样一级一级拉下去,到最后一个为收卷筒。各卷筒之间有一个汽缸摆臂,用于位移传感器把张力反馈到变频器,变频器根据反馈信号作PID闭环控制,使其各个卷筒之间张力保持 恒定。工艺要求在要更换接丝模的情况下直接把模具规格输入人机界面,变换拉丝模之后整个系统照样能正常生产运行。

Details

工艺演示图




系统控制原理

变频器在PLC给定频率及运行信号后,通过传感器反馈回的0-10V信号作内部PID自调节,E380系列变频器通过带前馈补偿的PID控制,可以实现高度稳定的张力控制。系统控制简图如下:



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