What is the problem of computer flat car tangential constantly

1. Listen to the sound. The sound of whether you use the thread trimming mechanism to work on the back of your foot is generally a click, under the needleboard, if you don't understand, remove the needleboard teeth, and see if there is a small blade to move.

If not, then find a professional mechanic. It may be a malfunction of the electrical control box or the electromagnet.

2. If there is, then replace the moving knife and the fixed blade.

If the bottom line doesn't come up, it may be that the wire clamp is not adjusted well.

Multifunctional household sewing machines are divided into horizontal rotary hooks and swing shuttles. The adjustment of the hook is the same as that of an old-fashioned sewing machine, because the shuttle center is easy to remove, and there is nothing wrong with this. The bottom line of the horizontal hook machine generally does not need to be adjusted, of course, there are also situations that need to be adjusted, after all, the surface line and the bottom line are well matched, so as to come out with satisfactory stitches.

The following steps are illustrated:

1. First of all, unscrew the 2 screws that fix the needle plate with an iron sheet.

2. Press the lower left corner (or lower right corner) of the needle board, the needle board will be warped, and the needle board can be removed.

3. Here you can directly see the tightened adjustment screws of the bottom line. In order to prevent the screws from slipping off due to vibration, there will be paint sealing.

4. Before adjusting, first install the bottom line, pull the wire out to feel the tightness, and remember the feeling of pulling the wire on your hand.

5. Find a small screwdriver to adjust the screws: turning in the clockwise direction is tightening, and turning in the counterclockwise direction is relaxing.

Pay attention to pulling the thread outward while tightening the screws, so that you can feel the change in tightness in your hands.

Reasons and adjustment methods for computer flat car cutting uninterrupted: 1Whether the tangent switch on the operation panel is turned on.

If it is not opened, it will be solved by opening it. 2.When cutting, whether the tangential solenoid works, if it does not work, please check the resistance value of the electromagnet (generally should be Europe), the second is to check whether the electromagnet works with DC 24V voltage, if not, it is a problem with the motherboard (by the way, the working voltage of the return needle solenoid is also DC24V) The position of the electromagnet of some computer cars is tangential whether the cam is installed correctly, which is the most basic.

4.The question of whether the handwheel is installed correctly and whether the sensor at the handwheel is installed.

Kiss. Hello, I am glad to answer for you: what is the reason for the broken needle in the computer flat car thread cutting 1, accidental needle breakage 1 The needle becomes bent, the tip of the needle is hairy or the fixing needle screw is not tightened - maintenance method:

Swap or tighten 2. When sewing uneven thickness of the piece, the sewing speed is too fast, and the needle is offset, resulting in needle breakage - maintenance method: The speed should be slowed down appropriately. 3. The operator's action is uncoordinated, and the push-pull sewing material is too complex during sewing, which makes the needle shift and collide with the needle board - maintenance method:

Use it correctly, and the movements should be coordinated. 2. Continuous needle breakage 1. The presser foot fixing screw is not tightened - maintenance method: check the position of the presser foot screw and the presser foot, and tighten the screw.

2. The needle plate is narrow, and the coaxiality error between the pinhole and the needle is too large - maintenance method: re-select the needle plate or adjust the needle plate screw until the coaxiality error between the needle and the needle plate hole is within the limit. 3. The needle and the cloth feeding teeth are not well matched and are not synchronized - maintenance method:

Adjust the movement of the needle and the feeding teeth. 4. The needle stroke is incorrect, and it is not properly coordinated with the movement of other mechanisms - maintenance method: check whether the needle stroke crank screw is fastened to the groove.

The steps are as follows:

One: to see whether the pressure of the small thread clamp of the computer flat car is too large, the small thread clamp is to control the length of the thread, if the pressure is too large, then the thread is too short, the second sewing, the thread head will come out of the needle hole of the sewing machine.

2: When the computer flat car is working on the wire trimming electromagnet, you must pay attention to see if the large wire clamp is popped open. If it doesn't pop off, push the large thread gripper in the sewing machine a little inside.

Three: pay attention to check whether the position of the sewing machine's thread trimming cam is correct.

Four: see if the handwheel of the sewing machine is installed correctly.

Five: pay attention to whether the pressure of the sewing machine is too high.

Six: pay attention to whether the wire reel and the wire crosser on the computer flat car are vertical, if the angle of the wire reel and the wire crosser is too different, it will make the upper line resistance too large, resulting in the tangent line is too short.

The most important thing is not to make a conclusion first, don't mess around, this is a taboo for machine repair, and be sure to use the hand transmission tangential action to confirm the problem before moving. Or manually see if the knife can bite, and see if the knife is worn.

Summary. If the computer flat car does not cut the line, you can try the following adjustments:1

Adjust the blade pressure: Check if the blade cutting pressure is too large, if it is too large, it needs to be adjusted. Generally speaking, the cutting pressure of the blade should be moderate, if it is too large, it is easy to cause the blade to be unable to cut the thread, so it is necessary to adjust the cutting pressure of the blade appropriately.

2.Adjust the blade height: Check if the blade height is appropriate, if the blade is too low, it is easy to press the thread end against the board of the sewing machine when cutting, resulting in uninterrupted thread cutting.

Therefore, it is necessary to increase the height of the blade appropriately. 3.Replace the blade:

If neither of the above methods can solve the problem, it is possible that the blade has been worn or damaged and needs to be replaced. When adjusting the blade, you need to turn off the power of the machine first, and then use the adjustment tool to adjust it. If you are not sure how to make adjustments, it is recommended to refer to the instruction manual of the sewing machine or consult a professional maintenance personnel.

If the computer flat car does not cut the line, you can try the following adjustments:1Adjust the blade pressure:

Check that the blade cutting pressure is too high and if it is too large and needs to be adjusted. Generally speaking, the cutting pressure of the blade should be moderate, if it is too large, it is easy to cause the blade to be unable to cut the thread, so it is necessary to adjust the cutting force of the blade properly. 2.

Adjust the blade height: Check if the blade height is appropriate, if the blade is too low, it is easy to press the thread end against the board of the sewing machine when cutting, resulting in uninterrupted thread cutting. Therefore, it is necessary to increase the height of the blade appropriately.

3.Replace the blade: If the above two methods do not solve the problem, it is possible that the blade is worn or damaged and needs to be replaced.

When adjusting the blade, you need to turn off the power of the machine first, and then use the adjustment tool to adjust it. If you are not sure how to make adjustments, it is recommended to refer to the instruction manual of the sewing machine or consult a professional maintenance personnel.

A needle is broken, the position is not moving, the thread is not stopped, how to fix it? The mechanic said to press the S button to turn off and then adjust, how to operate, talk about the detailed operation.

If your sewing machine has broken needles, but the position is not moving, and the digging is not interrupted, you can fix it by following these steps:1First of all, turn off the sewing machine and unplug the late liquid to ensure safety.

2.Open the needle board and panel of the sewing machine and find the needle and needle bed. 3.

Using forceps or similar tools, remove the broken needle, making sure that no debris is left behind. 4.Follow the instructions of the sewing machine to install the new needle correctly and adjust the position and depth of the needle.

5.Reinstall the pin board and panel and plug it in. 6.

Follow the advice of the mechanic and press the S button on the sewing machine to turn off the sewing machine. 7.Then, according to the instructions of the sewing machine, the correct adjustment and calibration are carried out to ensure that all the parameters of the sewing machine are correct.

8.Finally, restart the sewing machine and test it to make sure it is working properly. It should be noted that the installation and adjustment of needles requires great care and caution, and if you are not familiar with the repair and commissioning operation of sewing machines, it is recommended to seek the help of a professional mechanic.