冷轧酸洗线开卷机启卷器的作用是将原料卷的带头剥开，并将其夹持送入夹送辊和直头机。
The head end of the coil will be peeled from the coil and clamped by coil opener and carried to the pinch roll of the processor.
讨论了开卷机在镀锌生产线中的开环张力控制，并详细论述了通过在P LC中设置变频器的参数来实现开环张力控制。
The article discusses about open tension control of pay off reel in the continuous galvanizing line and setting the parameter of converters in the PLC to realize the open tension control in detail.
开卷机由变频器驱动，可实现对卷料的自动开卷；
The products could be uncoil automatically by the uncoiler which was drove by frequency converter.
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