- 2022-06-21
- 浏览次数: 252
During the knitting process, the needle tongue does not hook the newly laid yarn, or the coil falling off after it hooks the wool yarn but comes out of the needle hook again after forming a circle is called needle leakage. It is mainly caused by poor or worn triangle device, improper yarn feeding, poor knitting needle and mechanical vibration. The specific solutions are as follows:
Cause | resolvent |
Yarn is damaged during rewinding | Rewinding |
Flat bending deformation of bobbin | Change the bobbin and rewind |
Excessive weaving tension | Reduce yarn feeding tension |
There is cross and entanglement between yarns | Correct threading sequence and put the bobbin in place |
Yarn is clamped by other machine parts | Straighten out the position of parts and adjust them |
The needle tongue is too tight to close properly | Add white oil to the brush or change the needle |
The brush is loose or improperly installed | Tighten the screws and adjust the brush position |
Yarn nozzle seat is not in place | Adjust the position of yarn nozzle seat |
Needle selector fault | Remove and repair the needle selector |
The pulling force is too small or the turning needle pulling force is too large | Adjust tension |
Yarn nozzle position too high or too low | The cross point of front and rear needles is 1.5mm high, and the yarn mouth is adjusted |
The outlet of yarn nozzle is too large or burred or worn | Replace yarn nozzle |
Hair removal fillet with brush | Replace the brush |
The sliding block of yarn nozzle seat is loose or uneven | Readjust or replace |
The front and rear needle beds are not aligned due to the incorrect position of the shaking table | Correct the needle bed position, pay attention to the needle turning position and the total needle position 。 |
There is scale in the needle groove, and the needle tongue is sluggish | Clean the needle bed and knitting needle parts to eliminate scale |
Different knitting needle models or manufacturers | Replace knitting needles of the same manufacturer |
The bending triangle slider is loose, and the two ends are too narrow and sharp | Correct or replace |
Curved yarn triangle mark | polishing |
The feeding speed of curved yarn triangle is inconsistent | A sharpened eye triangle |
Loose or worn starting triangle | Adjust or replace |
Side antenna jitter amplitude is too large | Adjust or replace |
Mechanical jitter | Overhaul mechanical transmission components |
Problems in plate making due to unreasonable weaving process | Check plate making procedure |
Poor yarn quality and low strength
| Reduce the yarn feeding tension or change the yarn, or pass the yarn feeder or yarn storage device |