How To Deal With The Breakdown Of Single Needle Sewing Machine

The four major differences between inverted seam and normal seam determine the difficulty of reverse seam operation.

The objective conditions in actual production determine whether the seam can be carried out smoothly.

It is the most economical and effective way to reduce the speed of sewing down properly when using the high quality machine needles and sewing thread in addition to the maintenance personnel who are able to adjust and repair the machines within the limits of their ability.

Why do I say this? Because speed is reduced, the requirements for machine needles, sewing threads and rotary shuttles are correspondingly reduced. It is possible to reduce the speed at high speed because the maintenance personnel can only adjust the maintenance machines within the limits of their ability. The maintenance personnel can not improve the quality of the stitches, and the sewing thread can not reach the requirements of the inverted joints, so the maintenance personnel have no way to do so.

Besides, a very good spinning shuttle has good, medium and high quality shuttles that are able to withstand the same slit speed as the sewing speed. It can withstand such a continuous test of rotary shuttles. I am afraid that according to experience, we should choose dozens of miles. Considering most of the funds, most factories will abandon this road.

If you use a high quality machine needle, it is easy to do so. It is also difficult to use high quality sewing thread, because the money immediately goes out with the sewing thread. Besides, the good line is not easy to buy.

It is the easiest way to achieve the goal without spending money, that is to say, the proper way to reduce the seam speed is not to adjust and maintain the machine.

Experience has proved that by adjusting and repairing the machine, and properly reducing the speed of the seam, we can meet the requirement of completely sewing the work piece.

In order to understand this problem, we should review the sewing principle of single needle sewing machine.

A single needle sewing machine needle slot is oriented towards the left side of the operator. When working, the machine passes the needle slot to the shuttle conveyor.

The thread loop provided to the rotary hook thread is formed on the right side of the needle, and there are two necessary conditions for forming the ideal line loop. The first is the needle rising from the lower dead point. The second is that there is enough friction between the sewing thread and the sewing material on the right side of the needle needle to prevent the sewing thread from rising along with the needle rising. It is said that the sewing thread depends on the sewing material tube bundle, and only the sewing thread can be formed under the condition that the sewing material bundle and the machine needle rise from the lower dead center to the ideal thread ring.

At the same time, only under the condition of sewing material and tube bundle, the stitching rules will be completed.

On the other hand, the rules of sewing thread may be unruly if the tube bundles left the sewing material.

Coupled with manual operation and man-machine cooperation, the same machine will do nothing if it does not work well.

The incomplete operation on the work piece is sometimes done by continuous operation and has good results.

That is to say, the two live away from each other very closely, and two live joints are used to control the suture of the air gap.

In daily work, a single needle sewing machine operator should be advised to avoid the incomplete seam work on the work piece, because there is no theory to support the empty stitch.

It may be possible for individual operators to be short and occasional, but they can not be used as a standard to require all machines to do so.

Through the above discussion, we know that the work is entirely on the work.

By adjusting and repairing the machine, the use of high quality needles, sewing thread and proper speed reduction can be done well; not fully working on the work of the inverted joint (that is, empty stitches) so that the continuous operation, separate individual operation broken line is not very good, so it is a normal phenomenon.