Maintenance and Storage Guidelines for Knitting Machines

Ensuring the optimal performance and longevity of circular knitting machines requires a systematic approach to both maintenance and storage. These machines are complex and delicate, demanding precise care to function efficiently and avoid costly downtimes. The following guidelines detail the essential steps for maintaining the power distribution system, proper storage procedures during periods of inactivity, and the best practices for storing knitting machine accessories and spare parts.

Maintenance of Power Distribution System

The power distribution system serves as the essential power source for the knitting machine and requires strict and regular inspection and maintenance to prevent avoidable failures. Here are detailed aspects to consider during maintenance:

Check for Electrical Leakage and Ensure Proper Grounding

• Leakage Inspection: Use specialized equipment to detect any electrical leakage throughout the machine. Promptly identify and rectify any leaks found.
• Grounding Check: Ensure the grounding connections are secure and the grounding resistance meets specified standards. This prevents static buildup and electrical hazards.

Inspect Switch Buttons for Malfunctions

• Function Testing: Test each switch button individually to ensure proper operation (on/off). Replace any buttons that are slow to respond or fail to operate.
• Contact Point Examination: Open the button panel to inspect internal contact points for wear or oxidation. Clean or replace as necessary.

Regularly Monitor Detector Safety and Effectiveness

• Detector Functionality: Periodically test all installed detectors (e.g., temperature sensors, current detectors) to verify correct operation.
• Calibration: Follow manufacturer guidelines to calibrate detectors regularly to maintain accuracy.

Inspect Electrical Circuits for Wear or Breakage

• Wire Inspection: Thoroughly examine all wiring for signs of wear, aging, or breaks, especially in areas of frequent bending or high temperatures.
• Connection Point Check: Ensure all electrical connections are secure without loose fittings or poor contacts. Address any issues promptly.

Clean Interior of Motors and Lubricate Bearings

• Motor Cleaning: Periodically open the motor housing to clean internal dust and debris using compressed air and brushes to prevent overheating.
• Lubrication of Bearings: Apply appropriate lubricating oil to motor bearings to ensure smooth operation, reducing wear and noise.

Maintain Cleanliness of Electronic Control Box and Check Inverter Cooling Fan

• Control Box Maintenance: Regularly clean both the interior and exterior of the control box to prevent dust ingress and potential short circuits.
• Fan Inspection: Verify the normal operation of the inverter cooling fan, cleaning fan blades of any accumulated dust as needed to ensure efficient heat dissipation.

Machine Storage Procedures

To maintain knitting machines during periods of non-use, following semi-annual maintenance procedures ensures machines remain in optimal condition:

Lubricate Knitting Parts

• Oil Application: Use high-quality lubricating oil to thoroughly lubricate all knitting components to prevent rust and ensure smooth operation.
• Lubrication Process: Apply oil methodically to each moving part to ensure comprehensive protection.

Apply Anti-Rust Oil to Needles and Sinkers

• Anti-Rust Oil Selection: Use specialized anti-rust oil to coat knitting needles and sinkers, forming a protective layer against corrosion.
• Application Method: Apply oil evenly using a brush or immersion method to ensure complete coverage.

Cover the Machine

• Covering Material: Use a waterproof tarpaulin soaked in needle oil to cover the machine, preventing dust and moisture ingress.
• Storage Environment: Store the covered machine in a dry, clean place away from direct sunlight and humidity.

Inventory of Machine Accessories and Spare Parts

Maintaining a well-organized inventory of commonly used and fragile parts is crucial for ensuring uninterrupted production. Store parts in a cool, dry environment with minimal temperature fluctuations and conduct regular inspections. Specific storage methods include:

Forced Storage of Needle Cylinder and Needle Disk

• Preparation: Clean the needle cylinder thoroughly using appropriate cleaners and tools to remove dirt and impurities.
• Oil Application: Apply machine oil to the surface, wrap with oil cloth to prevent damage, and store in wooden boxes for added protection.
• Pre-Use Preparation: Before use, remove excess oil with compressed air and apply needle oil as needed for optimal lubrication.

Storage of Triangles

• Method: Place triangles in dedicated storage boxes to prevent damage from collisions.
• Anti-Rust Treatment: Apply anti-rust oil to the surface of triangles to prevent corrosion during storage.

Storage of Needles and Sinkers

• New Parts Storage: Keep new needles and sinkers in their original packaging to avoid moisture and contamination.
• Environmental Control: Maintain a cool, dry storage environment to prevent sunlight exposure and sudden temperature changes.

Regularly inspect stored needles and sinkers to ensure they remain in good condition, applying additional anti-rust oil as necessary to prevent corrosion. Following these detailed maintenance and storage procedures enhances the longevity and operational efficiency of knitting machines and their components.

Conclusion

By adhering to these comprehensive maintenance and storage procedures, the longevity and performance of knitting machines and their components can be significantly enhanced. Regular inspections, proper lubrication, and careful storage practices ensure that the machines are always ready for efficient and trouble-free operation. This systematic approach not only minimizes downtime but also maximizes the return on investment in these critical production assets.