01 Causes of mechanical condition:
1. There is a problem with the forming mechanism, such as the ring plate being knocked out.
2. The forming cam is worn.
3. The spindle beats.
The first two situations generally occur on the entire vehicle, while the latter situation occurs sporadically.
02 Process problems:
Mainly caused by excessive winding density.
1. The ring plate level is too small (the number of teeth supported by the supporting teeth each time is too small).
2. The rising and falling speed of the ring plate is too slow (the winding alignment teeth are not equipped properly).
3. The wire ring is used too lightly.
The first two situations generally occur on the entire vehicle, but may also occur sporadically, and the latter situation occurs sporadically.
03 Operational problems:
1. The switch car is defective.
2. Stop halfway.
3. Play slowly for a long time.
4. Artificial yarn pressing (prolonging the doffing time) causes head and feet to appear and the waist to bulge in the middle.
5. Improper squeezing during transportation.
The first four situations generally occur mainly on the entire vehicle, but may also occur sporadically, and the latter situation occurs sporadically.
04 Other reasons:
1. The winding speed is too high.
2. The quality of the yarn tube is not good (such as skipping, the surface of the tube is too light to hold the yarn); there is no pattern at this time, but the amount may be relatively large.
3. Some parts are not adjusted well, such as: the forming convex nails at the bottom of the spun yarn tube are not adjusted well, causing the capacity of the bottom of the small yarn to be too large and too full, and the winding spindle to be inserted incorrectly, etc. .
The above are the main reasons why spun yarn bobbins deloop during self-winding. We found deloops during actual production. Phenomenon, you might as well check them one by one according to the above analysis to see which link specifically has the problem. Of course, there are also cases of decoupling caused by other reasons. You can leave a message after the article to exchange your experience in dealing with the problem of bobbin decoupling. </p
