Common Faults Handling Of Sewing Machines

The 1. machine needles, sutures and sewing materials are not properly matched.

2. machine needle bending, rough or wear - replacement pin.

Three

The machine needle is wrong - reinstall the needle according to the correct method.

4. the time of the shuttle hook is not proper or the clearance between the machine needles is too large. Adjust the needle according to the correct position of the needle and the hook point.

5. the hook hook is not good enough.

The height of the 6. needle stroke is not equal to the height of movement.

7. pressure foot groove is too wide, pressure foot pressure is not enough - replace narrow groove presser foot, increase pressure.

8. needle plate slot too wide - replace needle plate slot.

9. the plane of the presser bottom plate is not parallel to the plane of the needle plate -- adjust the presser foot to make it parallel to the needle plate.

10. the gap between the needle bar and the upper and lower sleeve is too large - to replace the overworn sleeve.

Section line

1. the order of threading is wrong -- Re line the thread in the right order.

2. line adjustment is too tight - slowly loosening the thread, and adjusting the bottom line tightness accordingly.

The 3. machine needles are not used properly - replace the needles corresponding to stitches and sewing materials.

4. machine needle bending new machine needles.

5. machine needle impact presser feet adjust the presser position.

6. the spindle is not running smoothly, or the position is wrong. Adjust the position of the shuttle and fasten it according to the correct position.

7. the spindle hook is damaged - the revolving shuttle hook or the new spinning shuttle.

8. the needle hole is rough or the needle groove of the needle plate is damaged.

Nine

Pythium or crisp - replace the line.

10. the shuttle hook line is too fast or too slow.

Broken bottom line

1. the shuttle core is too full or uneven -- Re wound the bottom line.

2. the bottom line is moldy - replace the line.

3. tighten the bottom line - properly unscrewing the screws and adjusting the tightness of the surface.

The entrance of the 4. spindle sleeve is sharp or rough - sharpened angle with oil stone or fine sand cloth.

5. the low position of the feeding tooth causes the quick opening of the bottom of the feeding tooth.

The outlet line is too small to cause friction between the bottom line and the bottom of the tooth.

Broken needle

1. chance to cooperate with sewing materials - replace machine needles suitable for sewing materials.

The 2. machine needles are not properly loaded and collide with presser pins or needle plates.

3. machine needle bending - replace machine needle.

4. changing the position of the pin mechanism, adjusting the position and fastening of the needle mechanism according to the correct position.

The machine doesn't work well.

1. the motor belt is too loose or too tight - adjust the length of the belt. If the upper plane of the cloth is lower than the plane of the needle plate, the stitched fabric will wrinkle easily. This is the common fault of the needle feeding double needle sewing machine.

2. inside the shuttle, there are thread or dirt on it. - remove the rotary shuttle, choose an economical and practical machine, and use the ordinary down delivery cloth.

Or a double needle machine with a mop wheel is very practical.

For a garment enterprise, the performance of sewing machines is often limited. This is the best. Not the more functions, the better.

In view of the problem of wrinkling after sewing, it is very practical to choose two needle machines with ordinary underfeed cloth or two needle machines with mop wheels.

Remove thread or dirt and add a small amount of sewing oil.