Common faults of slitting machines mainly include blade wear, winding problems, abnormal tension, static electricity accumulation, etc. The following are specific faults and solutions:
Blade-related problems
Blade edge blunting or blade wear: After long-term use, the blade will become blunt or offset, and it is necessary to replace the new blade or adjust the position in time.
Cutter offset or screw loose: Check and re-fix the cutter screw to ensure the correct position of the cutter.
The edge of the film roll is warped after slitting: Replace the blunt cutter, adjust the installation angle or reduce the winding speed.
Abnormal winding
Uneven winding: The main reasons include inconsistent paper core or improper tension. Solution:
Replace the paper core that meets the inner diameter requirements
Use the winding roller and adjust the tension
The end surface of the film roll is uneven: It may be due to inaccurate photoelectric tracking or too little tension. It is necessary to adjust the photoelectric eye, increase the color difference contrast or increase the winding tension.
Film roll has ribs or unevenness: The thickness is uneven or the winding is too tight. It is necessary to improve the film quality and reduce the contact pressure.
Tension control problems
Excessive tension causes longitudinal stripes: Reduce the slitting tension and adjust the parallelism of the guide rollers.
Unstable tension or no tension:
Check the magnetic powder clutch and add new magnetic powder
Make sure the tension switch is in the correct position and adjust the proximity switch.
Static electricity and foreign matter problems
Dust or hair adsorbed on the film surface: Connect the static electricity conduction device and let the tentacles touch the back of the film roll.
Scratches on the film surface: Clean the guide rollers and over rollers before slitting to ensure that there are no foreign objects.
Other common faults
The main motor does not rotate: Check the emergency stop button, power connection and inverter.
Automatic deviation correction failure: Replace the fuse core or adjust according to the deviation correction manual.
Key processing principles: Regular maintenance, timely replacement of worn parts, keeping the equipment clean, and adjusting parameters such as tension according to the film characteristics. When encountering complex problems, it is recommended to contact professional technicians for processing.