What is the reason for the thread breakage of the industrial sewing machine with 100 polyester threa

Taking Rixin industrial sewing machine as an example, the possible causes and solutions of industrial sewing machine thread breakage are as follows:

1. There are acute angles or needle groove hairs on the edge of the needle hole; Use or replace the needle with a new one after polishing the pinhole.

2. The thread holes of the top thread are partially brushed, so that the sutures are blocked during movement; It can be polished with sand skin or coated with polishing paste on the line, and polished.

3. Sewing thin thread for thick materials; Replace the sutures accordingly.

4. The suture strength is too poor; Replace the stitches.

5. The pressure of pressing the thread is too tight, so that the suture is injured or the thread is broken; The mule mother should be properly unscrewed.

6. The inner groove of the hook has an acute angle, which will hurt the suture or break the yarn; The hook should be polished inside, and then tested, or replaced with a new hook.

7. The hook positioning hook and the notch of the shuttle frame are not properly matched; Adjust the fit of the hook positioning hook so that the noodle line can pass smoothly.

8. The needle is overheated and the chemical fiber wire is fused; The chemical fiber thread should be cooled with a needle or suture (silicone oil).

9. There are burrs and acute angles on the edge of the pinholes of the needle plate, which cause bruising sutures; It can be pulled with yarn rope and polishing paste, but it can not be pulled too large, too large to cause jumping.

10. The position of the needle is wrong; Adjust the needle to the correct position.

11. bending the needle; Replace the needle with a new one.

12. The up and down strokes of the needle rod are wrong, and the pick-up line on the needle rod crank and the crank positioning mule are not positioned in the groove of the pick-up crank or the positioning direction is wrong; It should be redefined.

If you use other wires, you need to adjust the eccentric wheel in the machine.

Hello! According to my scriptures, please try to change to 14 needles for the first burning year; If you are using a plastic presser foot group, a small groove at the bottom of the presser foot opening should be able to solve the problem. Why use a sewing machine to step on polyester fabric, and throw threads on both sides.

Is it a household or industrial machine? Most of the household copies are unclean winding at the swing shuttle, which affects the winding line and the line is not smooth, resulting in broken threads, or the surface line is too tight, the needle is bent, the quality of the thread is not good, and the needle eye has burrs, which can cause the broken thread.

Industrial machines, in addition to the above-mentioned degrees, there is also the improper time of the hook to hang the coil, and the sewing of thick materials and the use of thin material hooks, which are the reasons for the broken line.

There is a manual that the 1st line is too poor, the 2nd line is too tight, the 3rd needle is reversed, the 4th needle is too low, the 5th line is burred, the 6th needle plate is burr, and the 7th hook is burr. There is a professional book that the position of the positioning hook is incorrect, and the hook is installed incorrectly. It's best to find a car seller to fix it for you.

Alas! You've put the needle upside down! There are not so many problems with the new car.

There are many reasons for the broken thread of the electric sewing machine, mainly the broken bottom line and the top thread, the most common are the following:

1. If the line is not adjusted, it will be disconnected. Solution: The best way to adjust the line is to adjust the bottom line first, and the bottom line should be after the wire core is placed in the shuttle sleeve, and it is advisable to hold the wire in one hand and the shuttle sleeve slowly fall down, and then adjust the surface line according to the bottom line.

2. If the presser foot is not adjusted properly, the line will be broken. Solution: There is friction between the side of the presser foot and the needle when adjusting the pressure foot, and the presser foot should be shaken from side to side to see if it will touch the needle.

3. The gap between the shuttle bed and the needle tip is too large and the thread is broken. Solution: The distance between the hook hook and the needle groove should be less than the easy needle breakage when adjusting the shuttle bed.

4. If the fabric is too thick, the thread will break. Solution: Tighten the screws on the top of the presser foot to make it have a certain amount of pressure.

5. If the fabric is too thin, the thread will break. Solution: When sewing, the presser foot goes out of the fabric and breaks the thread.

6. If the needle rod and the shuttle bed are not synchronized, the thread will be broken. Solution: When adjusting the needle rod, use a shuttle sleeve to put it on the needle plate, and the needle bar is just adjusted to the height of a shuttle sleeve, and then adjust the shuttle bed.

7. The bur pinhole is too sharp and will break the thread. Solution: It is recommended to use a round-headed pin, but it is a little more expensive.

There are also some reasons for disconnection due to our operation and improper use. The main ones are as follows:

1. The threading method is incorrect, not according to the correct line, check whether the top line is worn wrong or less than a certain line crossing. The stringing should be done correctly according to the instructions on the manual.

2. The needle is installed incorrectly, such as the needle long groove is reversed or skewed. The correct way to install it is to have the needle groove facing the operator. It is also possible that the needle eye and needle groove are not smooth, and the needle should be replaced with a new needle.

Check that the needle type is suitable, that the height of the needle bar adjustment is accurate, and that the needle is attached to the top of the needle bar. If the needle is too high or too low, it will affect the hook threading.

3. Suture problems, one is that the tension is too large, and the suture tension should be adjusted appropriately; Second, the quality is too poor, so better sutures should be used instead; Third, the suture is thicker than the eye of the needle, and the appropriate suture or needle is used.

4. If there are burrs or scratches on the needle, curved needle, needle board, presser tongue, wire hole and other parts, re-polish it with oil stone or fine sandpaper, if the scratch is serious, it is necessary to replace the parts.

5. There is fiber fluff in the shuttle, and the fluff and the thread are twisted with each other, so that the thread becomes thicker, and the thread will break if it cannot pass through the pinhole. Check whether there is cotton dust and dust accumulated in the cloth feeding teeth and shuttle bed, and pay attention to keeping it clean and clean frequently, so as not to affect the formation of the line step.

Observe the gap between the lower hook and the needle, and it is generally advisable not to touch the needle; Look at the outer edge of the lower hook to see if there is a burr; Is the bobbin compression reed too tight? If it is tight, loosen it a little, and at the same time adjust the noodle line pressure spring to be looser.

No, because the cloth is thin, it causes collisions between the sewing machine needle and the machine, so it cannot be used.

It should be the problem of your presser foot that needs to be debugged by a professional master.

Generally, the weight of a line is 120-130g, and the length is not the same because the specifications are different, so the thinner the longer. The specifications range from coarse to fine, with 209 (|.)Also called phoenix eyeline), 123, 204, 203, 202, 403, 402, 502, 603, 602. These are commonly used in garment factories.

Among them, 123 203 603 403 is three strands, 204 is four strands, 202 402 502 602 is two strands, famous brand thread factories like Jintai, Coats has high prices and excellent quality, and their color cards have introduced what thickness of the thread is suitable for sewing what products, you can understand it when you look at it. Now there are some special threads, such as polyester high-strength thread, nylon elastic thread, nylon bondi thread, which can also be called fireproof line (production of fireproof products), waterproof line (such as the production of ski goods) and so on. There are other questions to tell you specifically.