Precise control of winding tension in paper core tube making machines is a key factor in determining paper tube hardness, roundness, and uniformity, and is also crucial for improving production efficiency. Excessive tension can lead to excessive compression of the paper tube, resulting in uneven ends, paper breakage, and internal stress concentration, making it susceptible to deformation and cracking during storage or use. Excessive tension can loosen the paper tube structure and reduce stiffness, making it prone to jitter or breakage during high-speed unwinding, impacting production continuity. To achieve dynamic tension balance, optimization is required in the following three areas:
1. Staged Tension Control: Differentiated tension parameters are set for each stage of paper tube winding (starting, mid-winding, and finishing). A low tension is used at the start to ensure stable tube formation. The tension is gradually increased during mid-winding to maintain tube density. The tension is appropriately reduced at the finishing to prevent end wrinkles.
2. Real-time Monitoring and Feedback: The Paper Core Tube Making Machine is equipped with a tension sensor and servo control system to monitor paper speed and winding pressure in real time. The PLC automatically adjusts brake force and motor speed to ensure tension fluctuations are within ±5%.
3. Equipment Maintenance: Regularly inspect the wear of vulnerable parts such as the tension roller and brake pads on the Paper Core Tube Making Machine, and replace any aging components promptly. Keep the guide roller surface clean to prevent tension instability caused by paper slippage.
