What's the difference between a computer double-needle and a single-needle sewing machine?

Difference between computer double-needle and single-needle sewing machines:

A single-needle sewing machine, also known as a flat machine, is one with only one thread at a time. A double-needle machine also called a double-needle sewing machine, has two uniformly spaced tracks at a time.

Double-needle sewing machine, as the name implies, is a sewing machine with two needles has the effect of double threads parallel to each other. The use of double stitches in a pair of trousers is less than that of a flat car, so in the workshop, the matching of a flat car and double stitches is about 5:1, but it is essential.

Double-needle sewing machine (also known as a double-needle flatbed) is a used sewing machine with two needles in two synchronizations, three synchronizations, and corner turning. The effect is that two threads are parallel and parallel to each other. However, it is essential. Although the flat machine can sometimes replace the double needle, considering the efficiency, use it to do the double needle work in mass production. Unless it is a small amount of production, the double needle efficiency is high, and the double threads are parallel, neat and beautiful.

The double-needle machine is commonly used for ordinary and computer types, suitable for thin, medium, and thick fabrics.

The double-needle sewing machine is a kind of used sewing machine with two needles in two synchronizations, three synchronizations, and corner turning. The sewing effect is that the double threads are parallel and parallel to each other, and the double lines are parallel and neat.

The mechanism can be adjusted:

1. Adjustment of the distance between two stitches

2. Replacement of stitch cam

3. Adjustment of needle and shuttle positions

4. Matching between the feeding action of the feed dog and the needle bar up and down action

5. Coordination between needle bar cross action and needle bar up and down action

6. Push out adjustment of the front straight frame when two needle bars cross

7. Adjustment of height position of the presser foot

8. Pressure regulation of presser foot

9. Adjustment of the parking position.

 

Double-needle and triple thread are pressed during knitting; The four threads can be hemmed or pressed; Five threads can be directly used for sewing! Double stitches are generally used to press double stitches!

Although a flat machine can sometimes replace double stitches, no one is stupid enough to use a flat machine for double stitches in mass production, unless it is a small amount of production. Double stitches are usually sewn together with binding strips, which look beautiful.