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Five common faults of household sewing machines:
Fault 1: Skipping stitches and broken wires.
Reason analysis: The shuttle bed, swing shuttle, shuttle shell and bobbin core of the sewing machine are under the bottom of the sewing machine, and they are interlocking layer by layer. The most prone to failure is the swing shuttle, which has a tip in front of it, and after a long time, this tip will become bald, and it will skip needles and break the thread.
Solution: Change the hook.
There are several reasons for disconnection:
1. The quality of the thread is not good, which is a common phenomenon.
2. The threading needle and mechanism are burr, which is more complicated, if rust is excluded, you need to use the smallest file to correct it.
3. The spring of the mechanism is relaxed, resulting in the sewing process, the cotton thread is short for a long time, and it is not tight or not loose, so it is easy to break the thread.
To judge the fault, it is necessary to shake it slowly to see the entry and exit of each line, because this must be carefully judged and checked on the spot, so it cannot be described in detail and accurately.
Fault 2: The upper and lower lines are uneven.
Reason analysis: the function of the bobbin shell is to adjust the upper and lower lines, if the upper and lower lines are uneven, it means that there is a problem with the screws of the bobbin shell.
Solution: Tighten the screws or loosen the screws.
Fault 3: The needle does not hang the thread.
Reason analysis: the needle handle on the needle is flat, and there is a needle eye below, and the needle handle is perpendicular to the needle eye, and the poor quality will not be vertical. First of all, it is necessary to choose the best needle. If the needle is reversed or not in place, the thread will not be hung.
Solution: The correct way to install the needle is to have the needle groove on the needle facing the left side. When attaching the needle, it should be topped to the head.
Fault 4: It can't be rotated, or it becomes heavier and heavier.
Reason analysis: The sewing machine has a special sewing machine oil, under normal circumstances, the sewing machine oil is transparent, and it will turn yellow after a long time, but it can be used. Many people use not sewing machine oil, but cooking oil, transformer oil, etc., these oils have viscosity, and after a long time, the machine will not be able to rotate.
Although some people use sewing machine oil, when they put the oil in the beverage bottle, due to the sugar on the bottle wall, it will also cause the viscosity of the oil to increase, so that the sewing machine cannot rotate.
Solution: Disassemble the parts and clean them with oil.
Fault 5: Pedal the sewing machine, but do not track the thread.
Reason analysis: The cow belt of the sewing machine is loose.
Solution: Need to tighten it or change it. And the way to maintain the belt is to apply some oil regularly and do not let it dry out.
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If the needle is bent, try to change the needle.
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You first see if there is a clamp in the shuttle bed, the general problem is in the shuttle bed, take it apart and clean it carefully.
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Is it often broken? See if there's anything wrong with the hook.
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Summary. There are many reasons for the thread breakage of the sewing machine, there are broken bottom lines and top threads, the most common 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, it is advisable to hold the thread in one hand and the shuttle sleeve slowly fall down, and then adjust the surface line according to the bottom line) 2. The presser foot will break the thread if it is not adjusted well (there is friction between 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 (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 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 walks 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 the thread will break.
The reasons why the sewing machine is always broken on the line are as follows: there is a problem with the needle itself, the needle hole is not smooth, try to change the needle. The needle is thin and the wire is thick, and the wire cannot enter the wire duct and is easy to break.
It's really too fine, and the fabric is too hard. The upper line is too tight, and the adjustment screws on the front of the machine head can be adjusted. The shuttle has fiber fluff inside, and the fluff and thread are twisted together, making the thread thicker, and the thread will break if it cannot pass through the pinhole.
There are many reasons for the thread breakage of the sewing machine, there are broken bottom lines and top threads, the most common 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, it is advisable to hold the thread in one hand and the shuttle sleeve slowly fall down, and then adjust the surface line according to the bottom line) 2. The presser foot will break the thread if it is not adjusted well (there is friction between 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 (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 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 walks 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 the thread will break.
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What is going on with the sewing machine running empty line, hello dear, first, the reason for the empty needle of the sewing machine: Sun He 1, the thread end will be clamped off if it is stuck in the shuttle bed; 2. The needle is incomplete and bent, resulting in broken thread; 3. There are burrs in the needle plate holes; 4. The lockstitch sewing machine looks at the tip of the shuttle. Second, the solution of the empty needle of the sewing machine:
1. Wrap a circle on the needle when threading; 2. Replace the damaged needle. The method of coil stitching is very different from ordinary hand sewing. In the simplest hand-stitching of the Zelu school, the sewer ties a thread in the small eye at the end of the needle, and then threads the needle and thread completely through the two pieces of fabric, from one side to the other, and back to the original side.
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The method and detailed operation steps are as follows:
1. In the first step, prepare a pair of pointed tweezers for cleaning dead corners and threading, see the figure below, go to the steps below.
2. In the second step, after completing the above steps, use tweezers to clamp a piece of paper towel on the presser foot for cleaning, see the figure below, go to the next step.
3. In the third step, after completing the above steps, place the sewing needle on the paper knife with the groove facing left, see the figure below, and go to the following steps.
4. In the fourth step, after completing the above steps, start threading from the right hook, see the figure below, and go to the following steps.
5. The fifth step, after completing the above steps, pull it out and insert it into the ejector rod, then pass it through the plate hole on one side, pull it up to the screw, see the figure below, go to the steps below.
6. In the sixth step, after completing the above steps, use tweezers to pull out the line through the surface of the needle groove, see the figure below.
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Butterfly and Flyer are now a manufacturer, and the use of household sewing machines is the same, which is the official website of Butterfly.
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First, the bottom thread and top thread are loaded into the sewing machine.
The top thread is threaded.
Pull the bottom thread out of the pinhole.
Place the garment to be sewn into the sewing opening and lower the platen.
Start pulling the retract pulley and sew it with your foot on the pedal.
Precautions. When sewing, pay attention to put down the pressure plate, which is behind the needle (old-fashioned sewing machine), there is a small bar, and you can break it down.
Pay attention to tidying up the clothes to be sewn and tidy.
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Hello, I am glad to reply to you, the reasons and treatment methods of the broken thread of the sewing machine: 1. The cause of the failure: the edge of the needle pinhole has an acute angle or needle groove hair; Resolved:
Use or replace the needle with a new one after polishing the pinhole. 2. Cause of failure: the hair of each passing hole of the top thread is partially pulled, so that the suture is blocked during movement; Resolved:
It can be polished with sand skin or coated with polishing paste on the line, and polished. 3. Cause of failure: fine thread for sewing thick materials; Resolved:
Replace the sutures accordingly. 4. Cause of failure: the strength of the sutures is too poor; Resolved:
Replace the stitches. 5. Cause of failure: the pressure of the thread is too tight, and the suture is injured or the thread is broken; Resolved:
The mule mother should be properly unscrewed. 6. Cause of failure: the inner groove of the hook has an acute angle, which will hurt the suture or break the thread and limbs; Resolved:
The hook should be polished inside, and then tested, or replaced with a new hook. 7. Cause of failure: improper coordination between the hook positioning hook and the notch of the shuttle frame; Resolved:
Adjust the fit of the hook positioning hook so that the noodle line can pass smoothly. 8. Cause of failure: the needle is overheated and the chemical fiber wire is fused; Resolved:
The chemical fiber thread should be cooled with a needle or suture (silicone oil). 9. Cause of failure: there are burrs and acute angles on the edge of the pinhole of the needle plate, resulting in bruised sutures; Resolved:
It can be pulled with yarn rope and polishing paste, but it can not be pulled too large, too large to cause jumping. 10. Cause of failure: the position of the needle is wrong; Resolved:
Adjust the needle to the correct position. I hope it will be helpful to you, and you can always find the teacher if you have any other questions in the future. I wish you all the best in your life.
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Hello, the Pegasus sewing machine has been broken because: the first case, the quality of the thread is not good, we generally use 402 special sewing thread for sewing, if you are buying some inferior sewing thread, you may encounter frequent thread breakage. Try a different line, and maybe your problem will be solved.
The second situation is that you still use that kind of thin sewing thread when sewing the finished fabric, we know that there are several types of sewing thread, for example, the sewing jeans are thicker, and the sewing summer fabric georgette, silk and the like are thinner. If you use fine threads to sew the fabric, the threads will break. In such a situation, the town ruler is also to adjust the matching relationship between their fabrics and threads.
There is also a problem with the sewing needle, if you buy a new needle and the needle hole has a burr, then the thread is easy to break, and the broken place is around the needle. In such a situation, we will change the sewing needle. If the needle is not in the right direction, the thread will break, but if we take a closer look at the needle, it has direction.
One side is square, and that is facing inward, and if you go in the wrong direction, there will be a disconnection. The solution is to adjust the sewing machine needle, according to the regular needle application method, with the square side facing inward, and then tighten the screws. In addition to the surface line will be broken, the bottom line will also be broken, if the bottom line is broken, we will take out the shuttle at the bottom, adjust the screws above, usually it is relatively tight to cause the broken line, I just need to loosen the screws slightly, when adjusting the fine-tuning little by little, after adjusting it should be a hand to pull the line to take out, not too loose or too tight.
You can experiment with this by yourself and try it slowly. If the sewing machine is not used for a long time, some parts will rust and the thread will be broken, so at this time we need to add some special oil for the sewing machine to the sewing machine, so that the parts of the orange can rotate flexibly. If the sewing machine winder is too tight, it will also cause thread breakage, so we need to loosen the winder at this time.
The disconnection can be solved. Usually a new sewing machine, if the workmanship is rougher, then there are burrs where the thread passes, the thread will break, we can observe it carefully, if we find that there is a burr caused by the broken thread, we have to use fine sandpaper to flatten and smooth it.
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