What is the tension control of the slitting line machine?
Do you know what the tension control of slitting line machine is? What does it do? Today, we will answer your questions above one by one. If you are interested, read on.
The winding and unwinding process of the slitting line machine requires constant tension control, and the tension is set by the tension controller. The principle of tension controller control is to calculate the winding diameter by detecting the linear speed of the winding, load torque=F*D/2, F is the set tension, and D is the current winding diameter. Therefore, when the tension is set, because the current roll diameter is known by calculation, the load torque can be calculated.
The tension control of the slitting line can output a standard 0-10V analog signal corresponding to the rated torque of the asynchronous motor. So we use the analog signal to connect to the inverter and select the torque setting. In this way, the constant tension can be guaranteed during the entire dynamic process of winding.
In the inverter torque mode, the speed is limited. In the tension control mode, no matter the DC motor, AC motor or servo motor, the speed must be limited. Otherwise, when the torque generated by the motor can overcome the load torque and run, it will produce rotational acceleration and increase the speed. The final increase to a high speed is the so-called speed car.
The speed of rewinding and unwinding is limited by the analog output AFM of the spindle B series inverter, that is, the 3-05 (analog signal output selection) parameter of the spindle B series inverter is set to 03 (frequency command output) . Connect this signal to the analog comfort port of the rewinding and unwinding inverter respectively, as the setting signal of frequency setting and sad frequency.
The zero-speed tension control of the slitting line requires that when the rewinding and unwinding is running at 0Hz, the output shaft of the motor has a certain tension output and is adjustable. This requirement is mainly to prevent parking during the rewinding and unwinding operation, and to ensure that the rewinding and unwinding pan head will not loosen when restarting. In this control system, the requirements can be met by adjusting the initial tension setting on the tension controller.
Bangzhou Machinery is the reliable automatic slitting machine manufacturer. We can provide you the high quality slitting line machine and the best after-sales service. If you want more details about slitting line machine,you can contact us as soon as possible.
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