5 maintenance tips to extend the life of the hot stamping foil slitting machine

The key to extending the lifespan of the hot stamping foil slitting machine lies in regular maintenance and standardized operation. Here are 5 core maintenance tips to effectively reduce failure rates and improve equipment performance:

1. Precision parts cleaning and lubrication

• After daily operation: clean the gold leaf debris on the slitting blade, guide rail and drive shaft with a dust-free cloth (direct blowing of compressed air is prohibited to prevent debris from entering the bearing).

• Weekly lubrication: Use high-temperature grease (e.g., molybdenum disulfide) to treat the rails and gears, removing old grease before oiling. Spindle bearings need to be supplemented with special high-speed bearing grease every 300 hours of operation.

2. In-depth maintenance of the blade system

• Edge maintenance: After cutting 500,000 meters of gold leaf per minute, manually sharpen the blade with a diamond whetstone (maintain the original angle) to avoid excessive loss of blade substrate by automatic sharpening.

• Dynamic balance detection: use a dial indicator to detect the runout of the knife shaft every month, and stop the machine immediately for correction if it exceeds 0.02mm to prevent vibration damage to the equipment.

3. Tension control system calibration

• Semi-monthly inspection: Use a standard tension meter to check the tension rollers of each section, and recalibrate the sensor when the error exceeds ±5%. Check the tightness of the pendulum cylinder, air leakage can cause tension fluctuations to accelerate mechanical wear.

• Overload protection test: simulates material breakage to ensure that the magnetic powder brake can respond within 0.3 seconds to avoid sudden tension shock.

4. Electrical system protection upgrade

• Anti-static measures: install an ionic air rod at the rewinding and unwinding part, and regularly test the grounding resistance of the equipment (<4Ω) to prevent static electricity from breaking down the PLC module.

• Line aging prevention: check the bending parts of the servo motor encoder cable every quarter, and replace it immediately if the outer skin cracks to avoid signal interference.

5. Adaptation to the environment

• Temperature and humidity management: maintain the workshop environment of 25±3°C/50%RH, and reduce the bearing life by 30% for every 10°C increase in temperature. In the rainy season, it is necessary to place moisture-proof agent in the electric control box.

• Shock absorption basic maintenance: use a laser level to test the basic levelness of the equipment every six months, and an adjustment horn needs to be installed if the settlement exceeds 0.1mm/m.

Advanced suggestion: Establish equipment health files, record the slitting accuracy after each maintenance (use a micrometer to measure the variance of gold foil slitting width), energy consumption changes and other data, and predict potential failures through trend analysis. For example, an enterprise found abnormal wear of the main drive gearbox 2 weeks in advance through vibration spectrum analysis, so as to avoid the scrapping of the rotor assembly worth 200,000 yuan.