1. Cleaning only the take-up end, neglecting the slitting area. Many operators only use the adhesive roller at the take-up point, ignoring the area near the slitting blade assembly, which is the most concentrated area for particle generation. Residual debris accelerates blade wear and contaminates the product.
✅ Correct practice: Install a localized vacuum system around the blade holder to clean while cutting.
2. Not replacing the adhesive roller just because it "looks clean". Even if the adhesive roller surface has no obvious stains, its stickiness may have significantly decreased, making it ineffective at capturing tiny particles.
✅ Correct practice: Replace it according to operating time or shift, rather than waiting for it to completely fail.
3. Using blades beyond their lifespan, believing that the sharper the blade, the more durable it is. Overuse can cause microscopic chipping, affecting cutting quality and producing metal debris that contaminates the material.
✅ Correct practice: Adopt a "timed replacement system," setting the replacement cycle based on operating time (e.g., every 500 hours) or production volume.
4. Neglecting Tension System Calibration: Tension sensors and floating rollers are prone to jamming or signal drift during long-term operation. Failure to clean and calibrate them promptly can lead to uneven winding and wrinkling.
✅ Correct Practice: Calibrate the tension detection roller monthly with standard weights to ensure accurate feedback.
5. Arbitrarily Adjusting PID Parameters Based on Experience: When tension fluctuates, operators often blindly adjust the inverter's PID parameters, which may cause system oscillations.
✅ Correct Practice: Follow the principle of "first reducing the P value to stabilize the system, then increasing the I value to eliminate deviations," and fine-tune based on the response curve.
6. Neglecting Workshop Temperature and Humidity Control: Changes in temperature and humidity can cause materials (such as PET film) to expand and contract, affecting slitting accuracy and winding neatness.
✅ Correct Practice: Control the workshop environment at 22±2℃ and humidity at 50%±5% to reduce material deformation.
