Application of frequency converter in plastic film blowing machine

Plastic blown film machine is a device that processes plastic particles into plastic film through a series of processes. In this process, frequency converters are used to control the operating speed of motors in each processing step to control the thickness and other process parameters of the film. In the frequency conversion control of plastic blown film machine, other steps are relatively easy to control, that is, simple speed regulation can meet the process requirements. The difficult to control is the frequency conversion control of traction and winding parts, which directly affects the usability and automation level of the equipment and the product quality of plastic film. For plastic film traction and winding, speed control, position control, and direct torque control can be used. The following text takes a machinery factory in Zhongshan as an example to introduce the debugging method of speed control of CT100 series frequency converters in the traction and winding of plastic film blowing machines.