Circular Knitting Machine Maintenance FAQ

For its high price, circular knitting machine needs maintenance during daily operation to ensure its service life and improve quality.

For new circular knitting machine, the following aspects should be examined:
Examine the whole machine based on related technical documents provided by manufacturers. Check the machine whether is completed or not, including creel, yarn storage device, automatic stop arrangement, gear protective cover, polyurethane preparation, testing instruments, electrical appliances, etc.
Check accessories based on contract and attachment paper, including triangle, sinker, needle and other accessories.
Testing Run. Circular knitting machine needs to operate for at least one day after being installed and debugged. Check the style of cloth surface. During operation, check the triangle vibrating or not, yarn breakage and prober being flexible or not.

Working environment
Circular knitting machine may produce many flyings during knitting. For that, good ventilation should be kept in workshop. In winter, workshop has low temperature. Circular knitting machine has resistance. In summer, high temperature has great influence on frequency converter. So the temperature and relative humidity should be controlled between 28-30℃ and 65-75%. 28-30℃ is the best working temperature for circular knitting machine. When relative humidity is low, yarn may harden, causing stitch leakage on surface of fabrics and damaging needle. When relative humidity is high, needle and other accessories may rust.
Daily maintenance
Cotton fluff on creel must be eliminated and keep cleaning on machine no matter in day shift, middle shift or night shift.
Check yarn storage device in case of occlusion caused by cotton during succession.
Check automatic stop arrangement and gear protective cover frequently. Repair or replace it immediately when it is abnormal
Check grail and oil way is unblocked or not during succession or patrol inspection.

Weekly maintenance
Clean speed disk and eliminate the cottons storing up inside disc.
Inspect tension of belt on actuator and transmission.
Inspect operation of tractive and spooler.

Monthly maintenance
Remove triangle and clean the cottons on track or inside needle tray.
Inspect the wind direction of dust extraction fan and clean the dust on fan.
Clean cottons on all of accessories. Inspect the characteristics of accessories including automatic stop arrangement and safety inspection system.

Half a year maintenance
Clean the needle and sinker thoroughly. Inspect needle and sinker. Replace if it is damaged.
Check the oil way. Clean fueling injection device.
Clean and inspect transmitting yarn device.
Clean and inspect electrical system.