Long formula for adjusting yarn length on large circular knitting machine

1. 1, the horizontal bar caused by uneven tension shall be measured with a tensiometer;

1.2. If the tension is high, check the levelness, roundness and concentricity of the needle cylinder, needle ring and dial;

1.3, check whether the dial rubber block is damaged, whether the apron is aging, whether the yarn feeding wheel is wrong, whether the yarn channel is blocked, and whether the number of yarn feeding wheels (15-25) is normal;

1.4, check whether the yarn evenness is uniform, whether all the yarns used are of the same count, whether there is wax mixed with the marked wax, and whether there are wet and dry yarns, elastic yarns and inner and outer yarns mixed.

2. 1, excessive tension causes yarn breakage and cloth shedding, and the yarn needs to be solved by adjusting tension;

2.2. When the yarn nozzle is too far and too high, the yarn will fly. When the cloth is taken off, the yarn nozzle should be adjusted to solve it.

2.3. If the yarn is twisted too high, it will be twisted out of cloth, and the foot copper tube is used to prevent back twisting.

2.4. If the Japanese electromechanical eye is misplaced, fingers are wrong or fingers are not in place, it is necessary to inform the electrician to repair the computer and clean the fingers;

2.5. The continuous yarn caused by the yarn shovel hooking the cloth and the blade cutting off the cloth should be solved by readjusting the position between the yarn shovel and the finger and replacing the blade.

3. Hole:

3. 1. If it is judged that the hole is caused by yarn tension, it can be repaired by changing the yarn, or notifying the production yarn to wax, turn over and loosen the yarn.

3.2, the tension is too large or too small to cause a hole, adjust the tension to solve;

3.3. Pull out the big hole in Daqing. When repairing the machine, turn it down. Generally, you don't need a needle. The smaller the pull, the better.

3.4. The needle groove is tight, and the position of the yarn nozzle and knitting needle is not good, resulting in holes. It is necessary to adjust the position of the yarn nozzle and repair the needle groove to make the knitting needle go up and down freely;

3.5. For good special fabrics, the process will set the yarn length too close, so that the hole caused by weaving should be notified to change the yarn length to solve it;

3.6. If there is a hole in the same needle, replace this bad needle;

3.7. The hole in the same mold may be broken in Zhang Liqi, so Zhang Liqi should be replaced. Check whether there is any mistake in several kinds of long gauze yarn feeding wheels.

4. Wrong flowers:

4. 1. Non-automatic staggered patterns are generally manifested as: wrong needle arrangement, wrong yarn arrangement sequence, wrong color and yarn count; When repairing the machine, it is necessary to correct the needle arrangement and yarn arrangement according to the knitting process, and count the first group of clothing;

4.2, automatic single-sided jacquard, double-sided jacquard is mainly manifested in the wrong fingers, electric eye dislocation needle selector is broken, leading to wrong patterns. For example, the electrician determines that there is nothing wrong with the computer, and after repairing the machine, it is necessary to align the starting position of the return eye with the width of the pattern, otherwise the starting position will be inconsistent. Double-sided jacquard should use needle selector to fly or use washing machine to adjust the position of needle selector to solve the wrong pattern;

4.3. Some kinds of fabrics are staggered due to tension, while others turn needles into loops when the tension is too high, thus forming staggered patterns. Notify the tension adjustment processing.

5, Indiana cloth maintenance:

5. 1, flying frame:

A, the yarn nozzle is too far or too close to the knitting needle, which causes the roving frame to readjust the yarn nozzle position;

B, when there is a flying frame, the traction can't be adjusted too small.

5.2. Indiana:

A, the yarn tension is too small, generally it is better to adjust the yarn tension when the frame is inverted. Zhang Liwei12-15g of 32S/ 1 and 40S/ 1;

B, the needle ring position is not good, which makes the yarn support the reverse drawing frame. When maintaining the reverse drawing frame, pay attention to the position between the upper needle and the lower needle;

C, the yarn twist is too high, which leads to the increase of friction between the frame and the yarn during weaving, and it is easy to fall down. It can be solved by improving yarn twist (such as scouring).

5.3, broken Indiana, tight Indiana:

A, the knitting needles are seriously worn, and the hanger is scratched or hooked during knitting, which can be solved by changing needles and leaves;

B, the yarn nozzle position is not good, too high and too far, the frame is off-set, and the yarn nozzle position is adjusted;

C, yarn tension is too large, or the frame position is uneven, causing the frame to break tight. It is necessary to adjust the yarn tension and the position of the frame lamp as required;

D, flying flower yarn mouth, tenter wheel rotation is not flexible, and the tenter with tight fracture should be cleaned in time.

5.4, food Indiana:

A, the position of yarn and tenter weaving should not be too close, which solves the main reason of flying flowers being clean and neat;

B, the yarn tension is too large, the proportion of tenter is too large, and the tension of tenter is too small, which is easy to produce tentering. Machine maintenance can be solved or checked by adjusting tension.

Whether the rack meets the requirements of the order.

6, flower needle:

6. 1, straight needle: check whether the needle tongue is crooked and whether the needle pin is missing;

6.2. The position of edges and corners is not good, and there are not enough needles. Re-check the position of edges and corners;

6.3. If the draft is too small and the knitting needle is too long, adjust the draft.

6.4. Adjust the food position of needles, syringes and dials;

6.5, adjust the needle tightness;

6.6 When the yarn surface is rough, it should be waxed.

7. Lost needles:

7. 1, the straight leaking needle is replaced by the bad needle;

7.2. Adjust the distance, height and left-right position between the yarn nozzle and the knitting needle;

7.3, adjust the yarn tension;

7.4. Adjust the tension.

8, striker, broken needle:

8. 1. Check whether the probe is loose and the firing pin is broken;

8.2, check whether the corner seat and triangle are locked;

8.3, the machine with and without oil supply speed is too fast;

8.4. Is there pilling in the knitting needle triangle? The needle groove is too dirty or there is no bad heel or iron impurity.

8.5. If there are roving knots in the yarn with poor nozzle position, it is necessary to adjust the nozzle to eliminate the knots.

9, oil needle, oil:

9. 1. Adjust the oil supply of the machine, clean the waste oil pipe and the inner wall of the syringe. Part of the machine needs glass glue;

9.2, check whether there is any damage on the mat under the dial;

9.3. The needle groove is too dirty and the temperature is too high. When the needle cylinder and knitting needle rust, the machine should be cleaned.