The daily maintenance of the automatic hardboard production line is a key link to ensure the stable operation of equipment, guarantee product quality, and extend service life. According to current industry practices, daily maintenance work should be systematic, standardized, and implemented at every operational stage.

Core points of daily maintenance
Cleaning and Cleaning

Daily cleaning: After each shift, the surface, interior, and conveyor belt of the equipment must be thoroughly cleaned of paper scraps, dust, glue stains, and oil stains. The key cleaning areas include conveyor belts, pressure rollers, coating rollers, longitudinal cutting knives, cross cutting machine knife holders, and photoelectric sensors to prevent the accumulation of debris from causing equipment wear, jamming, or printing quality problems. ‌
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Key component cleaning: Regularly clean the paper wool and adhesive residue on the surface of high-temperature components such as hot press plates and drying rollers to avoid scratching the cardboard surface. ‌
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Lubrication and maintenance

Strictly implement the “Five Determinations” principle: fixed point, fixed quality, fixed quantity, fixed time, and fixed personnel. Develop a detailed lubrication plan for all lubrication points, such as bearings, gears, chains, guides, cylinders, etc. ‌
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Regular refueling: According to the equipment manual and maintenance manual, regularly lubricate the transmission components with designated types of lubricating oil or grease. For example, the lubricating cotton of the longitudinal cutting machine needs to be replaced in a timely manner, and the pressure oil and gear oil of the tile line equipment need to be replaced periodically. ‌
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Lubrication of high-temperature parts: For high-temperature components such as corrugated rollers, high-temperature resistant butter should be used for lubrication to prevent bearing wear and roller surface damage. ‌
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Key component inspection and debugging

Daily inspection: Check the parallelism of each roller, whether the pressure is uniform, whether the conveyor belt deviates, and whether the tension is appropriate. ‌
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Regular calibration: Calibrate key parameters on a weekly or monthly basis, including the gap between the corrugated roller and the pasting wheel of the single-sided machine, the gap between the contact plate and the pasting wheel of the pasting machine, the angle of the longitudinal cutting machine tool, the cutting blade of the transverse cutting machine, etc., to ensure forming and cutting accuracy. ‌
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Electrical system inspection: Regularly check whether the wiring inside the electrical control box is loose, whether the contacts of electrical components (such as contactors and relays) are burned, and clean the dust to prevent short circuits. ‌
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Management of vulnerable parts

Regular replacement: Establish replacement records and lifespan tracking for vulnerable parts such as conveyor belts, cutters, tapes, vacuum suction cups, lubricating cotton, etc. For example, the service life of the hard alloy blade of the slitting machine can reach 5-6.5 million meters, and it needs to be replaced in a timely manner according to the actual usage. ‌
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Status monitoring: By observing the operating status of the equipment (such as abnormal noise, vibration, and current changes), it can determine whether the components are about to be damaged and achieve preventive maintenance. ‌
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Environment and operating standards

Control environment: Maintain the temperature in the production workshop at 18-25 ℃ and the relative humidity at 40% -60% to reduce the impact of temperature and humidity changes on the moisture content of cardboard and equipment accuracy. ‌
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Personnel training: Operators must undergo professional training, be familiar with industrial paper hardboard production line structure, operating procedures, and basic maintenance knowledge, and are strictly prohibited from operating in violation of regulations