Manhart How to control the tension of the sheet metal during the processing of an electric plate rolling machine?

Controlling the tension of the sheet metal during the processing of an electric plate rolling machine is a key link, which directly affects the processing quality of the sheet metal and the stability of equipment operation. The following is a detailed explanation about how the electric rolling machine controls the tension of the sheet metal:
1. The importance of tension control:
-When the tension is too high, it can cause damage to the internal structure of the board and increase the load on the winding machine motor.
-If the tension is too small, it will cause the coiling work to be unable to be completed normally, causing the steel plate to not reach the correct coiling angle and causing the steel cylinder to loosen after coiling.
2. * * Tension control method * *:
-Direct tension control method: Install a tension measuring instrument on the coiling machine to convert the tension generated by the color coated steel plate during the coiling process into the pressure of the tension roller. The pressure is measured and feedback in real-time through the pressure measuring instrument, thus achieving direct control of tension.
-Indirect tension control method: This method does not directly measure tension, but indirectly affects and adjusts tension by controlling other related parameters (such as line speed, winding torque, etc.). For example, by adjusting the speed and torque of the motor, the operating status of the coiler can be affected, thereby achieving control of tension.
-Composite constant tension control method: This is a comprehensive strategy that combines direct and indirect control methods. It uses a tension detector for real-time tension monitoring and adjusts relevant parameters based on the monitoring results to maintain a relatively stable tension level.
3. Specific operation of tension control:
-When setting tension, factors such as the thickness, width, and material of the steel plate need to be considered.
-Choose a suitable tension device and adjust the tension according to the parameters of the steel plate.
-Adjust the tension of the circuit and wire as needed to maintain a balance between the two.
-During the processing, the tension is constantly adjusted to ensure that the coiling and feeding speeds of the steel plate match, avoiding danger or processing defects.
4. * * Automation level of tension control * *:
-Manual control: Users must always check the tension of the controlled material and adjust the output torque at any time. This method is suitable for situations with low speed and low tension control requirements.
-Semi automatic mode: using ultrasonic principles and other automatic detection methods to adjust the tension of the coil material. This method has functions such as buffering start, anti loosening roll, and inertia compensation, and is suitable for mid-range machinery.
-Fully automatic mode: The tension of the coil is measured by a tension sensor, and then the controller automatically adjusts the clutch or brake to control the tension of the coil. This method can achieve full closed-loop control of tension, with the highest control accuracy, and is suitable for high-end metallurgical equipment such as precision rolling mills and high-speed slitting machines.
In summary, controlling the tension of the sheet metal during the processing of an electric plate rolling machine is a complex and critical process that requires comprehensive consideration of multiple factors and the selection of appropriate control methods and strategies.