What to do with the reversal of the electric sewing machine

1. If it is a household sewing machine, the position of the needle distance adjustment handle is wrongIf it's an old-fashioned electric sewing machine, the motor plug is plugged in backwards, and if it's a computerized sewing machine, it's set incorrectly.

2. See if the hole of the needle board of the sewing machine is smoothSee if the hook, the tip of the shuttle, and the quilt are smooth. This can happen if the twist is too large or the twist is not good. This can also happen if the stitches are too tight.

Machine maintenance for sewing machines:

1. Cleaning of cloth teeth: remove the screws between the needle plate and the cloth teeth, remove the cloth wool and dust, and add a small amount of sewing oil.

2. Cleaning of shuttle bed: Shuttle bed is the core of sewing machine work, and it is also the most prone to failure, therefore, it is necessary to remove dirt frequently and add a small amount of sewing machine oil.

3. Cleaning of other parts: The surface of the sewing machine and all parts in the panel should be cleaned frequently and kept clean.

1. Refueling parts: each oil hole on the head, lubricating the upper shaft and the parts connected to the upper shaft; the parts in the panel and the moving parts connected to each part; lubrication of the presser foot and needle bar and the parts connected to them; Wipe the moving parts of the lower parts of the machine plate and add less oil.

2. Precautions should be taken for the maintenance of the sewing machine: after the work is completed, insert the needle into the pinhole plate, lift the presser foot, and cover the machine head with the hood to prevent dust invading; When you start working, first check the main parts, how light and heavy the step is, whether there is any special sound, whether the needle is normal, etc.

The best way to solve the problem of inverting an electric sewing machine is to use as few backseams as possible or to shorten the backseam distance as much as possible. When adjusting, the hook should be slower and the needle bar should be lower, which will help to reduce the failure rate of reversal.

Generally, electric sewing machines are used to adjust machine tension and other parameters by stitching. When used for backstitching, the stitch formed by it is somewhat different from the stitch, the inverted stitch is a knot stitch, and the stitch is not knotted, so that the consumption of the stitch is about twice that of the stitch when the stitch is reversed, and the tension of the surface line will increase accordingly. In addition, due to the long back-seam distance, the number of times the thread passes through the needle hole increases, and its strength loss also increases correspondingly.

Adjust the wiring and try it, and it is estimated that the wire end is connected wrong.

Supplement upstairs:

There is also a possibility that the inverted needle was not pressed back.

The computerized flat sewing machine reversed the reason and adjusted the method in time:

1. The reversal of the sewing machine is caused by the reversal of the motor.

2. The running direction of the motor is related to whether the sewing machine is working normally or inverted.

3. Replace the running motor (motor) plug, or change the motor wiring sequence, and the sewing machine can work normally.

Precautions for the use of computerized sewing machines.

Before work, the computer sewing machine must be checked to ensure that the safety device is complete, sensitive, reliable and effective, and the tooling must be worn according to the regulations. Otherwise, it will endanger the operator with long hair, who will have to coil it up and put it inside the hat.

When maintaining the equipment, pay attention to the lubricating oil not to touch the eyes, ** and other parts; To prevent injury, regardless of whether the equipment is working or not, do not mess with the equipment parts and supporting devices, before operation, the computer sewing machine must be put into trial operation; After confirming that the safety is normal, the operation can be carried out.

There is a problem with the inverted connecting rod of the machine, you need to open the back cover to check the transmission part of the connecting rod to adjust, and it is clear whether the reverse is the first round of reversal or the cloth goes backwards when sewing.

Hello dear advice to you is 1. The processing method for the direction of rotation of the motor in different working environments is scattered: 1. The DIP switch of the signal module should be dialed to the "single pulse" position when the input is a single pulse, and the motor rotates when there is a pulse output. Changing the direction of the signal can change the direction of rotation of the electrolytic infiltration machine.

2. When the input is double pulse, the DIP switch of the signal module should be dialed to the double pulse position. When the positive pulse is generated, the motor rotates forward; When a negative pulse is generated, the motor reverses; However, it should be noted that positive and negative pulses cannot be given at the same time. 2. When the motor runs in the opposite direction to the requirements, two methods are recommended for this:

One way to do this is: to change the direction signal of the control system; Another method is to change direction by adjusting the wiring of the stepper motor. Here's how:

1. For two-phase motors, only one of the phases of the motor line needs to be exchanged into the stepper motor driver, such as A+ and A- exchange. 2. For three-phase motors, the motor line of one of the phases should not be exchanged, but the two phases should be exchanged sequentially, such as A+ and B+ exchange, A- and B- exchange.

The best way to solve the reversal of the electric sewing machine is to choose as little as possible to use the reverse seam of the finch pants or to shorten the distance of the inverted width as much as possible. When adjusting, the hook is slower and the needle bar is lower, which is helpful to reduce the failure rate of inverted landing. Hope it helps.

Summary. Hello, the motor of the sewing machine is a single-phase motor, the plug is plugged in and reversed is the same will not be reversed, the way to solve the reversal is to change the wiring inside the motor, or change the direction of the motor installation, traditional belt, etc.

Hello, the motor of the sewing machine is a single-phase motor, the plug is plugged in and reversed is the same will not be reversed, the way to solve the reversal is to change the wiring inside the motor, or change the direction of the motor installation, traditional belt, etc.

How to deal with the electric sewing machine walking backwards.

Hello, the motor of the sewing machine is a single-phase motor, the plug is plugged in and reversed is the same will not be reversed, the way to solve the reversal is to change the wiring inside the motor, or change the direction of the motor installation, traditional belt, etc.