140CPU65260  【KEWEI】 Application of intelligent servo of Kewei single board in ribbon winder

First, ribbon winder introduction
Webbing winding machine is often used as a machine connected after the webbing machine, as a winding part of the winding production line such as soft tape or film, and the raw materials woven by the webbing machine are wound into a winding sheet on the winding reel in a certain way.

The winder is an automatic winder, which is mainly used to roll flat or soft materials into coils of a certain diameter. The product structure mainly includes drum, winding device, transmission device, control device and support frame.

The reel is the core part of the winding machine, which is made of stainless steel or aluminum alloy plate material, and has a certain elasticity and strength. The winding device comprises a winding rod and a clamping part, through which the material is clamped on the winding rod, and a driving device drives the drum to rotate, so that the material is gradually wound on the drum.

The working principle of the winder is that when the material begins to enter the reel, the motor gives a fixed torque to drive the reel to start rotating. With the progress of winding, the diameter of the material gradually increases, the load increases, and the output torque of the motor is increased at this time, so as to achieve the effect of uniform winding. The whole process by gradually increasing the tension to achieve the desired effect of winding. When a certain diameter is reached, the control device will automatically control the drum to stop rotating, and the transmission device will also stop driving the drum to rotate.



Second, system scheme

(1) The original plan

The original scheme uses magnetic powder clutch to control the winding tension, and its core principle is to use the linear relationship between excitation current and torque. When the excitation current passes through the magnetic powder clutch, a certain torque is generated, and the torque is proportional to the current. By precisely controlling the size of the excitation current, it is possible to achieve precise control of the winding drum torque, thus maintaining the ideal tension. In this system, monitoring reel length is crucial. As the winding continues, the winding length will gradually increase, and the winding diameter will increase with the load. Accordingly, the excitation current needs to be adjusted accordingly to keep the tension constant. The control system monitors the winding length in real time through the sensor, and converts the information into the corresponding excitation current instruction. When the winding length increases, the sensor sends a signal to the control system, which adjusts the excitation current according to this signal to increase the torque to keep the tension constant.
(2) New plan
The new solution is built by 4.3-inch touch screen, single-board intelligent servo drive and servo motor. In the new scheme, we use the 4.3-inch touch screen as the human-computer interface, and the single board intelligent servo driver and servo motor as the core devices to realize the precise control of the webbing winder. In order to achieve accurate control of the ribbon winder, we use 4.3 inch touch screen to design a friendly human-machine interface. On this interface, the operator can enter the initial torque, the torque increase level, the total winding length required, and calculate the length of the runner circumference to make the machine run. At the same time, the operator can also view the current production status and production data in real time, such as the current actual output torque size, total output, etc.
Then, we use a single board intelligent servo drive to control the operation of the servo motor. Single board intelligent servo driver is an integrated servo driver, which has built-in PLC function and motion control function. Through the single board intelligent servo drive, we can precisely control the output torque and steering of the servo motor, so as to achieve accurate control of the webbing winder. At the same time, the intelligent servo drive will also monitor the running status of the servo motor in real time, when there is an abnormal situation, it will immediately stop the operation of the servo motor, and can quickly output signals to notify other components to prevent accidents. In general, using 4.3 inch touch screen, single board intelligent servo drive and servo motor to build a webbing winder control system can achieve accurate, efficient and safe control.
Iii. System advantages and summary

In the control system of webbing winder, the intelligent servo of single board has the following advantages:

1. Stable tension control: The intelligent servo of the board has a built-in tension control function, which can precisely control the tension of the winding machine to ensure that the coil maintains a constant tension during the winding process, so as to achieve high precision coil winding. This control method can improve the quality and consistency of the product.

2. Torque ring speed protection: The intelligent servo of the board also has the torque ring speed protection function, which can monitor the change of torque and speed in real time during the coil winding process. When abnormal conditions occur, the board can quickly take protective measures to prevent equipment damage and production interruption. This protection improves the reliability and stability of the equipment and reduces the maintenance cost.

3. High cost performance: Compared with other types of control systems, the price of the winder control system built by intelligent single-board servo is more affordable. Because the single board intelligent servo has a high degree of integration and intelligence, it can reduce the input of other hardware and software, thereby reducing the cost of the entire control system.

4. Can achieve simple manual operation: just switch the manual mode on the touch screen, set the torque and protection speed, you can control the roll to turn forward and backward, easy to adjust the machine and handle abnormal situations.

In short, the control system of webber winder built by intelligent servo of single board has the advantages of tension control, torque ring speed protection and affordable price. These advantages help achieve high-precision coil winding while reducing costs and increasing production efficiency.