The quality of the yarn tube is very critical to the use of spindles. To choose bobbins made of high-quality materials, regular maintenance of bobbins in use should be strengthened, and defective bobbins that are deformed or damaged should be removed decisively and immediately.
If knitting machine manufacturers use bobbins of poor quality or are damaged by deformation, it will inevitably increase the unevenness of the spindle, increase the load on the spindle bearings, and shorten the service life of the spindle.
The spindle is driven by the spindle belt. The spindles used in spinning machines are equipped with cotton webbing and rubber belts. Cotton spindle belts have a large stretch, short application period, and low price; plastic spindle belts have stable transmission, small vibration, low noise, energy saving, and long service life, but are more expensive. In the long run, replacing cotton spindle belts with plastic spindle belts is a development trend and deserves to be promoted.
The yarn tube and the spindle taper surface of the braiding machine should be close and evenly matched, and the contact surface should not be less than 85%. The braiding machine manufacturer ensures reliable, synchronous, and stable operation of the yarn tube and spindle integration.
Yarn bobbins generally require maintenance inspections every six months to one year. The procedures are:
Removal: Remove silk waste, flying flowers, and dust, and eliminate waste of silk waste accumulated in the “eye of the sky”.
Set the spindle: Use a standard spindle to set the yarn tube and check the condition of the number (±1.0mm) bottom hole L (0.05-0.15mm).
Test tube: When the spindle speed is 18,000 rpm, it is better to estimate or feel the amplitude of the upper end of the yarn tube ≤ 0.15mm and the lower end ≤ 0.25mm (180-190mm yarn tube). At the same time, the defective bobbins with deformation, bending, rough surface, and scratches are removed.