Common Problems and Solutions
Winding Misalignment and Wrinkling
Roll edges appear uneven or flared. Check and calibrate tension control systems, clean edge guide sensors, check pressure roller parallelism, and control workshop temperature at 22 plus or minus 2 degrees Celsius with humidity at 50 percent plus or minus 5 percent.
Blade Marks and Burr Issues
Slit edges show burrs or wavy marks. Regularly check blade sharpness with a replacement schedule. Adjust blade gap to 10 to 15 percent of material thickness. Use specialized blades for different materials.
Equipment Vibration and Abnormal Noise
Establish regular lubrication schedules using designated lubricants. Use laser alignment tools to check drive systems. Conduct annual dynamic balance testing and weekly fastener checks.
Systematic Maintenance Schedules
Daily Maintenance
- Pre-startup: Confirm air pressure at 0.6 to 0.8 MPa, verify power stability, test emergency stops
- During operation: Monitor instrument parameters, check for abnormal sounds or vibrations
- Post-shutdown: Clean blade grooves and guide rails, clean optical sensors, remove roller residues
Weekly Maintenance
- Check pneumatic system for leaks
- Clean edge guide rails with specialized lubricant
- Inspect all safety protection devices
Monthly Maintenance
- Calibrate tension and pressure sensors
- Check drive belt tension and wear
- Clean electrical control cabinet filters
Quarterly Maintenance
- Check hydraulic oil quality and replace if needed
- Test control system backup battery
- Inspect electrical connection points
Annual Overhaul
- Replace worn bearings and seals
- Full control system precision calibration
- Replace aging air hoses and cables
Key Component Care
Slitting Blade System
Maintain blade usage records. Follow the principle of grind before replace. Apply anti-rust oil during storage with individual wrapping.
Edge Guide System
Avoid strong light exposure to sensors. Clean sensor heads monthly with alcohol. Test response speed regularly.
Tension Control System
Keep tension detection rollers clean. Avoid lateral forces. Calibrate regularly with standard weights.
Electrical Control System
Maintain adequate ventilation in control cabinets. Back up parameters regularly. Use stabilized power supply.
Safety Precautions
- Perform all maintenance with power and air disconnected and warning signs posted
- Use special tools and wear cut-resistant gloves for blade changes
- Electrical maintenance by certified electricians only
- Cool hot components completely before maintenance
- Depressurize hydraulic system before maintenance
Preventive Maintenance Strategy
Establish equipment health records documenting each fault with cause and resolution. Introduce condition monitoring through vibration analysis and infrared thermal imaging. Develop spare parts management based on fault statistics. Conduct regular operator training on equipment principles and basic fault diagnosis.
