I. Overview
Sub -cutting machine is a mechanical equipment that cuts wide paper or thin film into multiple narrow materials, which is commonly used in papermaking machinery and printing and packaging machinery.
Its transmission system is mainly composed of a host inverter, a volume inverter and two retractors.
Among them, the host inverter works under the opening vector of the loop to control the speed of the system.
Installation of the volume inverter and the two retirement inverters work in the torque mode of the ring, control the system's feed and cut the feed after cutting.
Subtracts for tension control system schemes:
The host inverter uses Huichuan universal inverter MD500 to control the operating speed of the splitter. It works under the opening vector of the ring. The main speed is generally adjusted by the potentiometer. The line speed of the inverter and the upper and lower rear transformers is given.
Put the volume inverter and the retractor inverter uses the Huichuan MD330 tin tinstone special inverter. These three inverters work in the torque mode of the opening of the loop; the Huichuan MD330 inverter is a inverter that can achieve constant tension control. You can obtain the diameter of the roll in the reality through the calculation inside the inverter, and obtain the constant tension control by controlling the output torque of the inverter;
Program advantage:
Substitute tension control system scheme is simple, simple debugging, and constant tension control is basically not affected by speed, which can achieve high -speed division;
The related parameters of the tension control system of the segmentation machine through setting up reasonable system inertia compensation, friction compensation, and material inertia compensation can make up for the unevenness of the start or acceleration process caused by the start or acceleration process caused by system inertia, friction resistance and material inertia. Stable tension control effect.
And the retractor can achieve taper control, to achieve the effect of tightening rolls to overcome the weakness of the fixation of magnetic powder, making the control of high -speed division cutting a reality, and greatly improving the reliability of the device.
