Technical Maintenance

Common Braiding Machine Troubleshooting Guide

Fengyan Machinery Service Engineer2024-02-287 min read

Thread breakage is one of the most common faults in braiding machine operation. Causes of thread breakage usually include excessive tension, worn guide wheels, poor yarn quality, or mismatched spindle speeds. When troubleshooting, first check the tension adjustment device to ensure that the tension values of all spindles are within the recommended range (typically 0.5-2.5N). Next, check whether the guide wheels and yarn guides have burrs or wear, and replace them if necessary. If breakage is concentrated on a specific spindle position, the brake on that spindle may need adjustment or replacement.

Uneven braiding density is another key issue affecting product quality. Uneven density is usually caused by spindle speed fluctuations, unstable take-up tension, or improper braiding pitch settings. We recommend regularly calibrating the spindle encoder and checking whether the take-up motor's torque output is stable. For servo-driven models, you can improve speed response characteristics by adjusting the rigidity coefficient and filter time constant in the servo parameters. At the same time, ensuring proper meshing and lubrication of the braiding pitch gears is also an important measure to prevent uneven density.

Abnormal noise often indicates potential failure of mechanical components. If you hear periodic metal impact sounds, it may be due to wear in the cam mechanism or connecting rod bearings; if it's a continuous humming sound, it may be due to lack of oil in the motor bearings or loose belts. We recommend establishing a regular preventive maintenance plan, including weekly checks of lubrication system oil levels, monthly checks of belt tension, and quarterly checks of bearing clearances. By detecting and addressing these early warning signs promptly, unplanned downtime can be reduced by more than 70%, significantly extending the service life of the equipment.