What should I do if the sewing machine does not turn around the bottom line

Take a small driver, put on the spool, and press it directly by hand on the sewing machine flywheel to wrap the thread.

In 1869, the Westernists.

Representative Li Hongzhang.

When he visited the United Kingdom, he brought back a gold-plated Shengjia sewing machine as a gift to the Empress Dowager Cixi. At that time, the British ** also reported on the matter.

The earliest information that could be found about sewing machines entering the Chinese market was an advertisement. December 14, 1872, Declaration.

published a notice of Jinlong Foreign Company's "garment machine**". The notice said: "There are several new foreign sewing machines, each with a foreign price of 50 taels, and if you want to buy them, please come to our bank to contact." At that time, the foreign company was selling the American Singer Company (then called Singh.

company) products.

China Development:

The world's sewing machine industry has experienced a transfer from Europe and the United States to Japan, South Korea, Taiwan and Singapore, and has been fully transferred to China since the early 90s of the 20th century, and more than 70% of the world's sewing machine production has been in China at the beginning of the 21st century. However, 70%-90% of the domestic high-end machine market is occupied by Japanese and German companies.

In terms of low-end sewing machine products, the world's sewing machine industry has completed the transfer to China, and the industrial transfer has gradually extended to high-end products. With the intensification of competition in the sewing machinery manufacturing industry, mergers and acquisitions and capital operation among large sewing machinery manufacturing enterprises.

More and more frequent. Excellent domestic sewing machinery manufacturing enterprises pay more and more attention to the study of the industry market, especially the in-depth study of the industrial development environment and product buyers. Because of this, a large number of excellent domestic sewing machinery brands have risen rapidly and gradually become leaders in the sewing machinery manufacturing industry

This kind of failure generally does not replace the shuttle shell. Do not change the needle easily, it needs to be checked, if it is loose or misaligned, etc., it should be corrected.

1 .Check that the needle is in the opposite direction, especially for round-shank needles, and the operator needs to make his own decisions.

2.Check that the needle bar has not moved up due to loose screws.

3.Check whether the lower shaft crank screw is loose, causing the lower shaft to be misaligned left and right or circumferentially displaced.

4.Check whether the pendulum spring is broken.

5.Check whether the screws of the shuttle bed cover are loose, causing the cover to shift to the left.

6.Check whether the wire hook at the lower end of the needle bar is loose and falls off.

That wheel you mean.

This is the time difference between the needle and the hook action.

You need to open the needle board, adjust the three fastening screws on the shuttle bed (the one that puts the bottom line), and keep it in line with the needle lifting action.

This is the most common minor problem with sewing machines.

What's the matter if the bottom line of the sewing machine can't be brought up? The bottom line of the sewing machine can't be brought up, this is the bottom line, there is a fault at the bottom, and it will be cold if you lose it.

Sewing machine does not hook threads? The bottom line doesn't come? The master will teach you the solution.

I use the 202 model, and I can't bring the bottom line after I get stuck. I took it apart and looked at it, because there was a plastic part with a defective design in the wire routing place, which was easy to hook the top thread, which caused the needle to be bent. Cracked one of the gears inside.

This causes the gear to slip and the threading structure under the bottom line and the needle to be out of sync. I removed the gears and adjusted the threading structure forward by 3 teeth so that it was synchronized with the needle. Hope it helps.

It turned out that the thread of the needle was worn backwards!

First of all, see if the shuttle gall (outside the shuttle, composed of two covers) is loose, if it is intact and then see if the line left by the shuttle is long enough, you can give it a try, the problem should be solved, I wish you success, thank you bye.

What's the method, you send a ** to see thank you.

The specific inspection method is: press the cam follower (group) along the B direction at the same time, make the handwheel slowly reverse, when the cam drive roller of the cam follower enters the cam groove R part of the tangent cam, the handwheel just feels that there is a sense of obstruction, and then it is necessary to ensure that the engraving point on the machine head is aligned with the red engraving point on the handwheel.

If the fitting time is too early, it is easy for the sutures to come out of the needle (short after cutting on the upper line), and it may also cause poor tangential of the upper and lower lines, left and right lines, and poor on-line closing during the cut. If the fitting time is too late, it is easy to cause the needle to collide with the dialer and cause poor tangential.

There are several reasons why the sewing machine cannot hook the bottom line:

1. The time and gap between the straight needle and the tip of the swing hook or the tip of the hook are wrong. Correctly is, when the straight needle falls to the bottom point and begins to move upwards 3--4mm, the tip of the shuttle is in the center of the straight needle pinhole, and the gap between the straight needle and the tip of the shuttle is.

2. There are foreign objects in the hook frame, and in the process of using the sewing machine, the thread will be wound on the center rod of the hook frame, or there will be too much dust in the hook frame. When there is a wire head or too much dust in the hook, we will cause the lock cylinder to be stuck after installing the lock shell, and the lock cylinder will not be able to turn the bottom line at this time.

3. During the use of the needle rod and the sewing machine, the fastening of the straight needle connecting column is slightly loose, which will cause the needle rod to move upward, and the hook tip will pass through under the needle eye, resulting in the bottom line not being hooked.

Fourth, the sewing machine needle is bent, and the sewing machine needle is used for a long time (especially the small machine needle), and the gap between the needle and the hook tip is too large after the bending, resulting in the bottom line not being hooked. But in this case, the phenomenon of jumpers occurs first.

The bottom line of the sewing machine cannot be carried because the thread hook is displaced.

1. The sewing machine is a machine that uses one or more sewing threads to form one or more stitches on the sewing material to interweave or sew one or more layers of sewing material.

The sewing machine can sew cotton, linen, silk, wool, man-made fibers and other fabrics and leather, plastic, paper and other products, the sewing stitches are neat and beautiful, flat and firm, fast sewing speed, easy to use. And derived from it to push embroidery, computer embroidery and other art forms.

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

Sewing machine does not hook threads? The bottom line doesn't come? The master will teach you the solution.

If the fabric is thick, you can't hook the bottom line, what's going on?

Reason: the shuttle wire is too short, the shuttle wire is clamped in the shuttle door, the needle is too high, and the swing shuttle cannot hook the wire loop.

Solution: Lengthen the shuttle, check if the bottom line is stuck, and rule it out. If the needle bar connecting shaft is strong and the screw loosens the needle bar and moves up, the needle bar should be lowered, the needle should be realigned, and the fastening screw should be tightened.

Summary. Hello, dear, the bottom line of the sewing machine can not be brought up for the following reasons:

Hello, dear, the bottom line of the sewing machine can not be brought up for the following reasons:

It's just that the thread under the sewing machine can't be set.

There may be several reasons why the bottom line of the sewing machine cannot be brought up: 1. The online guide is not installed correctly: it is necessary to check whether the online guide is installed correctly, otherwise the line will be stuck or broken.

2. Incorrect tension adjustment of the lower line: check whether the tension adjustment of the lower line is too tight or too loose, resulting in the line being unable to pull up. 3. The line is too long

If the line is too long, causing the line to slack, the line cannot be lifted, and the road needs to be retracted appropriately. 4. Damage to the downline buckle: If the downline buckle is damaged, it will affect the tension of the downline, and it is recommended to replace the new downline buckle.

5. Wear of the bottom line wheel or wire wheel gear: If the bottom line wheel or wire wheel gear is worn, the wire will not be pulled up correctly. Qingxian 6. The sewing machine needs to be cleaned and maintained

The sewing machine needs to be cleaned and maintained regularly, and if the answer is not cleaned for a long time, the bottom line will be polluted by dust, oil and other substances, resulting in the bottom line of the sewing machine cannot be brought up.

The bottom line of the sewing machine is always out of a bunch of threads that can't walk, what's going on.

Hello, I will answer the above questions for you. The bottom line of the sewing machine is always out of a bunch of threads that can't be walked, and there are the following problems: 1

There is a problem with the needle itself, and the pinhole is not smooth, so try to change the needle. 2.The needle is thin and the wire is thick, and the wire cannot enter the wire duct and is easy to break.

3.It's really too fine, and the fabric is too hard. 4.

The upper line is too tight, and the adjustment screws on the front of the machine head can be adjusted. 4 .There are fibers in the shuttle, and the fluff and the thread are twisted together to make the thread thicker.

Hope it helps!

The bottom line of the sewing machine is always out of a bunch of threads that can't walk, what's going on.

The bottom line of the sewing machine is always out of a bunch of threads that can't walk, what's going on, hello dear, <> 1The upper line is too loose, check whether there is any foreign matter in the clamp that controls the tightness of the upper line on the head, and clean it up. 2.

If the thread threading is not worn properly, it may be that the thread clamp is not clipped, or which step is worn wrong. Re-thread the thread again by the correct route. If the bottom line is concerned, it may be that the bottom line is not tightened, or the bobbin is not placed correctly, take it out and wrap around the bottom line, and reinstall the bobbin.