High-precision tension control system for copper foil production

1. Torque motor control method
The torque motor control method is a method that measures the actual tension of the copper foil and adjusts it by feedback. Its working principle is as follows:
Tension sensor: During the copper foil winding process, the actual tension of the copper foil is measured in real time by the tension sensor.
Feedback signal: The measured tension signal is used as a feedback signal and input to the tension regulator.
Regulator processing: The tension regulator outputs the corresponding control signal according to the difference between the preset tension value and the actual tension value.
Motor adjustment: The torque motor adjusts its output torque according to the control signal to achieve precise control of the copper foil tension.
This method has the advantages of fast response speed and high control accuracy. However, it relies on accurate tension sensors and stable control systems, so special attention should be paid to the selection of sensors, installation locations, and stability of the control system during design and implementation.

2. AC servo motor control method
The AC servo motor control method is a high-precision tension control method based on AC servo motors. Its characteristics are as follows:
High-precision control: AC servo motors have the characteristics of high precision and high response speed, and can achieve precise control of copper foil tension.
Torque mode operation: In the torque operation mode of the AC servo motor, the motor can output the corresponding torque according to the control command, so as to keep the tension on the copper foil tape constant.
Roll diameter calculation and adjustment: By calculating the roll diameter value in real time and adjusting the motor control command according to the change of the roll diameter, the tension is ensured to be constant during the winding process.
This method is widely used in copper foil production because it not only improves production efficiency and product quality, but also reduces maintenance costs and failure rates. However, it also requires a high-precision control system and a stable power supply to support its high-precision and high-response speed characteristics.

3. Other control methods
In addition to the above two main methods, there are some other control methods that are also used for tension control in Electro-deposited copper foil Machine production. For example:
Magnetic powder clutch control method: By adjusting the excitation current of the magnetic powder clutch to change its output torque, the tension of the copper foil can be controlled. This method has the advantages of simple structure and easy maintenance, but the control accuracy and response speed are relatively low.
Pneumatic control method: The pressure generated by pneumatic components such as pneumatic cylinders is used to control the tension of the copper foil. This method is usually used in some special occasions or auxiliary control.