How to solve several defects that are prone to occur in the weaving process of air-jet looms
1. What are the reasons for the side support defect?
1. The position of the temple stab or the temple box is too low or too high, the knitting is not in the same horizontal line, the cloth body is bounced by the beating-up force during beating, and the cloth in the temple box is gripped by the temple stab. It is unable to move while holding and stretching, resulting in shearing force and forming side support defect:
2. Excessive cloth tension:
3. The function of the side support is too small:
4. The temple spurs are dull, curved, or the temple spurs do not match the model:
5. There are wire loops and debris in the thorn ring of the temple, and the rotation of the thorn ring is not flexible;
6. The temperature and humidity of the workshop fluctuate greatly, and the strength of the weft yarn decreases.
2. What are the reasons for the margins?
1. Poor selection of selvedge yarn;
2. After the skein yarn breaks, it cannot stop:
3. There is a mechanical failure in the selvedge yarn device;
4. The tension of the selvedge yarn is too large or too small, the selvedge is not firm, or the selvedge cannot be sewn.
3. What is the cause of the hole?
1. The height of the heald frame is inappropriate;
2. When the winding machine fails, the weaving mouth moves backwards when the winding machine is not winding or the winding is abnormal, and the weft yarn in the warp yarn tension mutation mouth is interrupted when the weft is beaten up:
3. The reed is poor and hard objects fall into the weaving mouth:
4. Man-made damage.
4. What is the cause of Yunzhi
1. The rotation of the rear beam is not flexible, and the bearings of the rear beam are worn and rolled:
2. The buffer function is not good, and it loses the shock absorption and buffer function;
3. The sensitivity of the tension sensor decreases, and the zero tension error is large:
4. The gears of the let-off mechanism are worn out and the meshing is poor:
5. The gear meshing table of the winding mechanism is too tight or too loose, the gear is worn, and the tooth is missing
6. Damage to the winding belt:
7. Wear of the take-up and release device;
8. The beating-up mechanism bearings are worn, and the machine parts are worn.
5. How to adjust the thin and dense paths when weaving?
1. First, check that the parts and bearings of the let-off and coiling part are not worn or rolled.
2. The meshing of each part of the gear is normal, and there is no slipping phenomenon:
3. The take-up roller cannot be slipped, and the chain tension is appropriate:
4. Check that the number of wefts in the over-start beating-up is proper, and the over-start is proper:
5. Reasonably set the rebound (or compensation) parameters of winding and let-off.