What is the reason for the thread breakage of the sewing machine synchronous car

Reason: Improper fit between the hook positioning hook and the notch of the shuttle frame; Solution: Adjust the fit of the hook positioning hook so that the surface line can pass smoothly.

The method of coil stitching is very different from ordinary hand sewing. In the simplest form of hand stitching, the sewer ties a thread in the small eye at the end of the needle, and then threads the needle thread completely through the two pieces of fabric, from one side to the other, and back to the original side. In this way, the needle drives the threads in and out of the fabric, sewing them together.

Components:

Generally, the sewing machine is composed of four parts: the head, the base, the transmission and the accessories.

The frame is divided into two forms: platen and chassis. The platen of the tabletop frame plays the role of supporting the machine head, and is used as a workbench during sewing operation. There are many styles of platens, with one or more buckets folded Tibetan type, cabinet type, writing desk type, etc.

The chassis of the chassis frame plays the role of supporting and storing the machine head, making the sewing machine easy to carry and store.

The transmission part of the sewing machine consists of components such as a frame, a hand crank or an electric motor. The frame is the backbone of the machine, supporting the table and foot pedals. When in use, the operator steps on the foot pedal to drive the rotation of the pulley through the crank, and then drives the head to rotate through the belt.

Hand crank or electric motors are mostly mounted directly on the nose.

The above content reference: Encyclopedia - Sewing Machine.

There are many reasons for the thread breakage of the sewing machine, there are broken bottom lines and top threads, and I know more than ten or twenty now! However, the most common ones are the following: 1. The line will be broken if it is not adjusted well (the best way to adjust the line is to adjust the bottom line first, and the bottom line should be after the core is placed in the shuttle sleeve, hold the line in one hand, and the shuttle sleeve will slowly fall down, and then adjust the surface line according to the bottom line) 2. The presser foot will break the line if it is not adjusted well (there is friction between the presser foot and the needle when adjusting the pressure foot, and the hand should shake the presser foot left and right to see if it will touch the needle) 3. The gap between the shuttle bed and the needle tip is too large to break the thread (the distance between the hook hook and the needle groove should be when adjusting the shuttle bed, Smaller than is easy to break the needle.

4. If the cloth is too thick, the thread will break (tighten the screw on the top of the presser foot to make it have a certain pressure) 5. If the fabric is too thin, the thread will break. (When sewing, the presser foot goes out of the fabric and breaks the thread) 6. The needle bar and the shuttle bed will break the thread if they are not synchronized (when adjusting the needle rod, use the shuttle sleeve to put it on the needle board, and the needle bar is just adjusted to the height of a shuttle sleeve, and then adjust the shuttle bed) 7. The needle hole of the bur is too sharp and will break the thread (it is recommended to use a round head needle, but it is a little more expensive, hehe! ）.

This is the most common kind of disconnection, I won't explain the rest one by one, if you don't understand yourself, it's best to contact the sewing car shop where you bought the car, I wish you a happy !!

The thread of the sewing machine is always broken and may be caused by the following reasons: the thread is loose or too tight: the thread is loose or too tight, which will cause the thread to fall off easily or the thread to break.

Therefore, make sure that the thread is properly tightened. The thread is too long: If the thread is too long, the thread is easy to get stuck during the sewing process, causing the thread to break.

Therefore, it is advisable to cut the thread head short so that it does not exceed centimeters before starting sewing. The sewing machine is not clean: If there is dust or debris inside the sewing machine, the thread end is easy to get stuck and cause the thread to break.

Therefore, it is necessary to keep the sewing machine clean and clean the inside regularly. Problems with the eye of the needle: If the eye of the needle has sharp edges or rust, the end of the thread is easy to be cut or stuck, resulting in the thread breakage.

Therefore, it is important to change the needle regularly and keep the eye of the needle clean. Poor thread quality: Poor thread quality can also lead to thread breakage.

Therefore, it is necessary to choose the *** line. If the above Fang Qing can't solve the problem, it is recommended to find a professional maintenance personnel to check whether there are other problems with the sewing machine.

Summary. Hello, there can be a variety of reasons for sewing machine thread breakage, which may include: 1

Poor contact between the thread and the needle: You can check whether the contact between the thread and the needle is tight, and if it is not good, it needs to be adjusted. 2.

Poor power quality: You can check whether the power supply voltage is up to standard, and if it is bad, you may need to replace the power supply. 3.

Motor carbon brush wear: You can check whether the carbon brush is in good condition, if it is bad, it may need to be replaced. 4.

Control board failure: You can check whether the control board is burned out, if it is bad, it may need to be replaced. 5.

Line faults: Circuits can be checked using professional fixtures, and wiring may need to be repaired if open circuits are found.

Hello, there may be a variety of reasons for the broken thread of the sewing machine, which may include: 1Poor contact between thread and needle:

It is possible to check whether the contact between the thread and the needle is tight, and if it is not good, it needs to be adjusted. 2.Poor power quality:

You can check whether the power supply voltage is up to standard, and if it is bad, you may need to replace the power supply. 3.The carbon brush of the motor is worn and buried:

You can check whether the carbon brush is in good condition, and if it is bad, it may need to be replaced. 4.Control Board Failure:

The control board can be inspected for burnout and may need to be replaced if it is not good. 5.Line Failure:

Circuits can be inspected using specialized fixtures, and wiring may need to be repaired if open circuits are found.

What is the reason for the broken thread of the sewing machine 1. The needle hole of the bur is too sharp and the thread will break Solution: It is recommended to use a round needle, but it is expensive only to brighten the mold point. 2. The fabric is too thick and the thread will break Solution:

Tighten the screws on the top of the presser foot to give it some pressure. 3. The needle rod and the shuttle bed will break the line if they are not synchronized Solution: When adjusting the needle rod, use the shuttle sleeve to put it on the needle plate, and the needle rod is just adjusted to the height of a shuttle sleeve, and then adjust the key to the shuttle bed.

4. The line will be broken if it is not adjusted well Solution: A good way to adjust the line is to adjust the bottom line first, and the bottom line should be after the core is placed in the shuttle sleeve, hold the line in one hand, and the shuttle sleeve will slowly fall down, and then adjust the surface line according to the bottom line.

5. The fabric is too thin and the thread will break Solution: The presser foot walks out of the fabric and breaks the thread when sewing. 6. If the presser foot is not adjusted well, the line will be broken Solution:

When adjusting the pressure foot, there is friction between the side of the press foot and the needle, and when adjusting the pressure of the old thing's feet, you should shake your hand left and right to press the silver foot to see if it will touch the needle. 7. The gap between the shuttle bed and the needle tip is too large and the thread is broken Solution: When adjusting the shuttle bed, the distance between the hook and the needle groove should be, which is less than the easy needle breakage.

1. In the first case, the quality of the thread is not good, we generally use 402 special sewing thread for sewing, if you buy some inferior sewing thread, you may encounter frequent thread breakage. Try a different line, and the problem may be solved.

2. The second situation is that you still use that kind of thin sewing thread when sewing the clothes, we know that there are several models of sewing threads, for example, the sewing jeans are thicker, and the sewing summer fabric georgette, silk and other threads are thinner. If you use fine threads to sew the fabric, the threads will break. In such a situation, it is also necessary to adjust the matching relationship between your fabric and the thread.