paper cans

The tension control of the tube machine is one of the key technologies in the paper tube production process, which directly affects the winding quality, dimensional accuracy and finished product strength of the paper tube. Good tension control can ensure that the paper tube is wound evenly, the surface is smooth, and there are no bubbles or wrinkles. The following is a detailed description of the tension control of the paper tube machine:

1. The role of tension control
   Ensure uniform winding: Tension control makes the paper tape evenly stressed during the winding process to avoid uneven tightness.

Improve the strength of the paper tube: Appropriate tension can enhance the interlayer bonding force of the paper tube and improve the overall strength.

Prevent deformation: Avoid deformation, cracking or wrinkling of the paper tube due to excessive or insufficient tension.

Improve production efficiency: Stable tension control can reduce downtime adjustment time and improve production efficiency.

2. Key parameters of tension control
   Tension size: Adjust the appropriate tension value according to the material, thickness and width of the paper tape.

Tension fluctuation range: Control the tension fluctuation within the allowable range to ensure winding stability.

Tension adjustment speed: Dynamically adjust the tension according to the production speed to avoid quality problems caused by sudden changes.

3. Tension control methods
   (1) Mechanical tension control
   Principle: Provide constant tension through mechanical devices (such as springs, weights).

Advantages: Simple structure, low cost.

Disadvantages: Low precision, difficult to adapt to high-speed production.

(2) Magnetic powder brake/clutch control
Principle: Control tension by adjusting the current of the magnetic powder brake or clutch.

Advantages: Fast response speed, high control accuracy.

Disadvantages: Requires regular maintenance, and magnetic powder is prone to aging.

(3) Servo motor control
Principle: Real-time adjustment of winding speed through servo motor to achieve precise tension control.

Advantages: High control accuracy, adaptable to high-speed production.

Disadvantages: High cost, complex system.

(4) Pneumatic tension control
Principle: Control tension through air pressure regulating device.

Advantages: Applicable to high tension occasions.

Disadvantages: Slow response speed, average precision.

4. Composition of tension control system
   Tension sensor: Real-time detection of paper tape tension and feedback to the control system.

Controller: adjusts the tension output according to the sensor signal.

Actuator: such as magnetic powder brake, servo motor, etc., executes control instructions.

Human-machine interface (HMI): used to set and monitor tension parameters.

5. Common problems and solutions for tension control

(1) Too much tension

Symptoms: paper tape breaks, paper tube deformation.

Solution: reduce the tension setting value and check whether the sensor and actuator are normal.

(2) Too little tension

Symptoms: paper tube is loosely wound and the interlayer bonding force is poor.

Solution: increase the tension setting value and check whether the paper tape is deviated.

(3) Tension fluctuation

Symptoms: the surface of the paper tube is uneven, wrinkles or bubbles appear.

Solution:

Check whether the sensor is sensitive.

Adjust the controller parameters to optimize the response speed.

Ensure that the paper tape is transported smoothly and avoid jitter.

6. Optimization suggestions for tension control

Choose the appropriate control method: choose mechanical, magnetic powder or servo control according to production needs and budget.

Maintain equipment regularly: clean sensors, check actuators, and ensure stable system operation.

Optimize parameter settings: dynamically adjust tension parameters according to paper tape material and production speed.

Train operators: improve operators’ understanding and operating skills of tension control systems.

7. Application scenarios of tension control
   Spiral paper tube machine: used to produce spirally wound paper tubes, tension control directly affects the interlayer bonding force of paper tubes.

Flat roll paper tube machine: used to produce flat roll paper tubes, tension control ensures that the surface of the paper tube is smooth and free of bubbles.

High-speed paper tube machine: In high-speed production, tension control is particularly important to avoid quality problems caused by speed changes.

Through reasonable tension control, the quality and production efficiency of paper tubes can be significantly improved, the scrap rate can be reduced, and the production cost can be reduced.