WeiNai's precision CNC three roll machine, as a high-precision mechanical processing equipment, plays an important role in many industrial fields. It is crucial to carry out maintenance work to ensure the long-term stability of its performance and accuracy.

2、 Structure and working principle of precision CNC three roll machine

（1） Structural composition

The precision CNC three roll machine is mainly composed of a frame, high-precision rollers, transmission system, control system, cooling system, and other parts.

（2） Working principle

By using different speeds and pressures, clearances, and speed differences of three rollers, the material is subjected to grinding, dispersing, extrusion, grinding, and other processing operations to achieve precise thickness control and surface treatment.

3、 The importance of maintenance work for precision CNC three roll machines

（1） Ensure equipment accuracy

Regular maintenance can promptly detect and correct accuracy deviations caused by wear, looseness, and other reasons.

（2） Extend the service life of equipment

Effective maintenance measures can reduce the wear and tear of equipment components and extend the overall service life of the equipment.

（3） Improve production efficiency

Reduce equipment downtime due to malfunctions, ensure production continuity, and thus improve production efficiency.

4、 The specific content of maintenance work for precision CNC three roll machine

（1） Daily maintenance

1. Equipment cleaning

Daily cleaning is necessary. After each use, it is necessary to clean the dust, oil stains, and debris on the surface of the machine, especially those corners that are prone to dirt and grime. Do not miss them and clean the surface of the equipment. Use a clean soft cloth and alcohol to wipe the outer surface of the equipment. It is strictly prohibited to use hard objects to scrape, so as not to damage the surface coating of the equipment. For difficult to clean oil stains, specialized solvents can be used for cleaning, but it is important to ensure that the cleaning agent does not corrode the surface of the equipment.

2. Check the lubrication condition

Check whether the lubricating oil quantity and quality of various lubrication parts such as transmission, gears, bearings, etc. are sufficient. Regularly add or replace lubricating oil to ensure that the transmission components of the equipment receive good lubrication and reduce wear. For example, for the main transmission gearbox, the oil level should be checked once a week and the lubricating oil should be replaced every six months.

3. Check the electrical system

Check if the electrical connections are secure and if the wires are damaged or aged. Regularly clean the dust inside the electrical cabinet to ensure proper heat dissipation of electrical components. At the same time, check whether the buttons and indicator lights on the control panel are working properly.

（2） Regular maintenance

1. Roller inspection and maintenance

Regularly check the surface wear of the roller for any signs of wear, scratches, etc. At the same time, check the parallelism and coaxiality of the rollers to ensure machining accuracy.

2. Maintenance of transmission system

Check the tension pulley of the transmission belt for looseness and adjust it in a timely manner. Regularly inspect the gears, discharge blades, stop plates, and wear conditions, and add customized lubricating grease to the mechanical parts.

3. Maintenance of cooling system

Check if the cooling water pipeline is unobstructed and if there is any leakage. Regularly clean the dirt in the cooling water tank and replace the coolant. Ensure that the cooling system can effectively reduce the heat generated during equipment operation and ensure the normal operation of the equipment.

4. Accuracy calibration

The equipment undergoes roll accuracy calibration every 1-2 weeks. Micro Nai's three roll machine does not require disassembly for calibration, and the entire series of CNC three roll machines come with an automatic calibration software backend.

（3） Fault maintenance

1. Fault diagnosis

When a device malfunctions, the first step is to observe and analyze the fault phenomenon, and determine the approximate scope of the fault. Fault clues can be obtained by listening to sound, observing operating status, and viewing alarm information.

2. Troubleshooting

Take corresponding troubleshooting measures based on the results of fault diagnosis. For simple faults, they can be resolved on their own. For complex faults, such as control system failures, mechanical component damage, etc., equipment manufacturers or professional maintenance personnel should be contacted in a timely manner for repair.

3. Fault recording and analysis

Record in detail the occurrence time, phenomenon, cause, and handling methods of each fault, and regularly analyze the fault records to summarize the patterns of fault occurrence, in order to take targeted preventive measures.

5、 Precautions in maintenance work

（1） Safety precautions

1.Before conducting equipment maintenance, the power must be cut off and a warning sign reading 'Do not close' must be hung.

2. Maintenance personnel should wear personal protective equipment such as gloves, goggles, etc.

3. When disassembling and installing equipment components, be careful to prevent them from falling and injuring people.

（2） Selection of maintenance tools and materials

1. Use appropriate tools for maintenance operations to avoid equipment damage caused by improper use of tools.

2. Choose maintenance materials such as lubricating oil, coolant, and seals that meet the equipment requirements to ensure maintenance quality.

（3） Training for maintenance personnel

1.The correct operation and maintenance awareness of operators are crucial for the long-term stable operation of the three roll machine. Enterprises should regularly organize training to familiarize operators with the performance, operating procedures, and maintenance points of equipment.

2. Maintenance personnel should be familiar with the operating procedures and maintenance manuals of the equipment, and strictly follow the requirements for maintenance work.

In practical work, users should continuously optimize maintenance strategies based on their own production and equipment operation conditions, improve the efficiency and effectiveness of maintenance work, and ensure that the precision CNC three roll machine always maintains a good operating state. Weinai's technical support will provide customized follow-up visits. For any uncertain issues, please contact the manufacturer for assistance.