What aspects should be paid attention to in the daily maintenance of Solar PV Round Wire Machine

        The Solar PV Round Wire Machine is the core precision equipment for producing high-purity copper round wires, which serve as the base material for solar PV ribbon. Stable machine operation directly determines the surface quality, dimensional accuracy, and production efficiency of photovoltaic copper wires. Regular and standardized daily maintenance can effectively reduce unexpected downtime, lower spare part replacement costs, and avoid defective products caused by equipment failure. This guide shares the key daily maintenance aspects of the PV round wire drawing machine for long-term stable mass production.

1. Wire Drawing Die and Guide System Maintenance

       The drawing die and wire guide components are the most critical wearable parts affecting PV wire quality, requiring full inspection every shift. Operators need to carefully check the die hole for scratches, wear, chipping, or deformation, as abnormal die conditions will directly cause unstable wire diameter, rough copper wire surface, and frequent wire breakage.

       In addition, inspect all guide rollers, tension wheels, and wire alignment accessories to ensure flexible and jitter-free rotation. Accumulated copper powder and surface burrs on rollers will scratch the finished PV round wire, leading to batch quality problems. Clean all wire passage parts with dry low-pressure compressed air and lint-free cloth after daily shutdown, and never use hard tools to avoid damaging precision surfaces.

2. Emulsion Cooling and Lubrication System Management

       The emulsion system is the core guarantee for smooth drawing and anti-oxidation of PV copper wires, and it must be strictly monitored daily. First, check the emulsion liquid level, concentration, and pH value in real time. The optimal concentration of special emulsion for photovoltaic copper wire drawing is 3%–8%, and the pH value should be maintained above 8.5 to prevent copper wire oxidation and drawing scratches.

       Control the emulsion operating temperature below 45°C; excessive temperature will accelerate emulsion deterioration, reduce lubrication performance, and cause wire surface discoloration. Regularly clean filter barrels, nozzles, and circulating pipelines to remove copper sludge and impurities, ensuring unobstructed liquid circulation. Add qualified biocide regularly to inhibit bacterial growth and prevent emulsion odor and failure.

3. Tension and Take-up System Inspection

       Unstable tension is the main cause of wire breakage, uneven wire diameter, and messy coil winding in PV round wire production. During daily operation, check the pay-off stand, magnetic powder tension device, and brake system to ensure constant and stable tension output without jitter or deviation.

       Inspect the traverse winding mechanism for smooth reciprocating movement, clean and lubricate the guide rods regularly to avoid stuck movement, overlapping wires, and irregular coil winding. Check the take-up spool for deformation and edge burrs to prevent scratching the surface of finished photovoltaic round wires during winding.

4. Mechanical Transmission and Lubrication Maintenance

       Good lubrication of transmission components extends the overall service life of the PV round wire drawing machine. Every day, check the gearbox oil level, observe for oil leakage and abnormal operating noise, and replace the gear oil regularly in accordance with the equipment manual.

       Focus on lubricating key moving parts such as bearings, linear guides, and transmission chains, and remove accumulated copper powder on lubrication points to prevent powder from entering bearings and causing jamming or abrasion. Inspect synchronous belts and V-belts for tension, cracks, and wear; belt slippage will cause speed fluctuation and affect the consistency of wire diameter tolerance. Regularly fasten all loose bolts of the frame, die base, and guide wheel base to ensure stable mechanical operation.

5. Electrical and Intelligent Detection System Upkeep

       The electrical control system and online detection system ensure the precision and safety of PV wire production. Clean the dust and copper powder on the surface of the control cabinet and frequency converter filter screen every day to avoid poor heat dissipation, equipment overheating, and system alarm failures.

       Check the emergency stop button, safety protection cover, and limit switches to ensure sensitive and effective response and reliable equipment grounding. For the online wire diameter measuring instrument, regularly wipe the detection lens to keep it clean, avoid measurement errors caused by copper powder adhesion, and complete regular calibration to guarantee accurate wire diameter monitoring. Inspect circuit terminals for oxidation and overheating risks to prevent short-circuit faults induced by conductive copper powder.

6. Environmental Cleaning and Daily Maintenance Records

       Keep the equipment surface and production environment clean and tidy, and clean scattered copper scraps and accumulated copper powder in time. Since copper powder is conductive, long-term accumulation will easily trigger electrical short-circuit risks. Maintain a dry workshop environment to prevent rust on precision components such as dies and guide wheels, and avoid oxidation and discoloration of semi-finished PV copper wires.

       Establish a complete daily inspection and maintenance log, record key data including emulsion parameters, operating temperature, equipment tension, component wear, and abnormal faults. Complete maintenance records help realize production quality traceability and predict the replacement cycle of vulnerable parts, effectively avoiding sudden equipment failures.

Key Maintenance Precautions

       •All cleaning and maintenance operations must be performed after power off and power locking to ensure operational safety.

       •Do not use high-pressure air to directly blow electrical components to prevent copper powder from entering the circuit system.

       •Replace deteriorated emulsion in full tank instead of simply adding water to ensure drawing lubrication effect.

       •Replace worn dies and scratched guide wheels in time to avoid batch defective PV round wires.

       •For long-term shutdown, thoroughly clean the whole machine, apply anti-rust treatment on precision parts, and cover with dust-proof covers.