What is the operation course of sewing machine?

1. The winding sequence of the upper thread and the placement of the bottom thread core must be correct, otherwise the sewing machine will not work normally.

2. When threading, the threading direction must be correct (from front to back), otherwise the sewing will not be normal.

3. Do not use the pedal switch and the power button at the same time.

Please take out the battery when using the transformer.

5. Skillfully operate the presser foot. The presser foot has many functions, and different presser feet will have different effects, so be sure to operate skillfully.

6, practice inverted stitches, that is, inverted stitches, because only the stitches of inverted stitches will not come loose, so it must be inverted.

7. Practice feeding cloth unevenly, because sometimes the upper piece is flat and the lower piece is a little wrinkled. This requires folding two pieces of cloth together by hand, so that the car can't be long or short.

Sewing machine type:

1. Sewing machine Household sewing machine:

In the early days, it was basically a single-needle manual sewing machine, and later, an electric sewing machine was invented, which has always become the mainstream of the market. According to its mechanism and suture form, it can be roughly divided into JA type, JB type, JG type and JH type.

2, sewing machine industrial sewing machine:

Most industrial sewing machines belong to general sewing machines, including flat sewing machine, chain sewing machine, quilting machine, sewing machine and flat sewing machine, among which flat sewing machine has the highest utilization rate.