Needle spacing of common sewing machines

The sewing machine can change the needle spacing by adjusting the needle position, presser foot and needle plate.

Flatbed double-needle sewing machine

As the name suggests, a double-needle sewing machine is a machine with two needles. The stitch of a double-needle machine is composed of two independent parallel and double parallel flat stitches.

According to the needle bar, the double-needle machine can be divided into a double bar and a single bar. The single bar double needle machine can only walk in a straight line. The double bar is suitable for a wider range of processes. In addition to sewing all kinds of straight and arc seams, it also has the function of a corner.

The most commonly used two needle spacing of double needle machine is 0.3cm-1.25cm, which are 1 / 8 (0.3cm), 3 / 16 (0.5cm), 1 / 4 (0.6cm), 5 / 16 (0.8cm), 3 / 8 (1cm) and 1 / 2 (1.25cm) . They are usually used in sewing pockets and stitching decorative tangent lines.

Chain stitch sewing machine

The Chain stitch sewing machine is a chain stitch. Its biggest feature is that the stitch has great flexibility, it is not easy to be broken. According to this feature, we try to use a chain machine when sewing elastic fabrics, so that the suture is not easy to be broken.

Generally, it is widely used in knitted clothing, sportswear, and denim series.

Chain machines are divided into a single needle, double-needle, and multi-needle chain machines according to the number of needles. The commonly used needle spacing is 1 / 8 (0.3cm), 1 / 4 (0.6cm) and 5 / 16 (0.8cm).

There are 2 kinds of needle arrangements of a double-needle chain machine, one is a horizontal arrangement and the other is a vertical arrangement. The horizontal arrangement is double thread sewing, which is generally used in the side seam, sleeve seam, collar, and other parts of trousers. The longitudinal arrangement is mainly used for reinforcing the back seam of trousers to improve the strength of the seam at the back.