One needle lock stitch machine with thread path

Experiment Name: study on one needle locks, stitch machine with thread puth.

Introduction:

A sewing mle is a textile m/e use to stitch fabric on other materials together with thread. Sewing mle were invented during the first industrial revulation to decrease the amount of manual sewing work performance in Clothing companies. Various type of feed mechanism are found in lock stich sewing m/e.

Objective:
1. To obtain knowledge about different punts of a single needle lock stitch mle.
2. To observe the mechanism of single nende toek stitch mic.

Specification.

Brand: Juki corporation Japan
SPI : 10"
TPI: 25-3"
SPM : 1500-3000
No. of nudle: 01
No. of bobbin: 1
Stitch class: 300
No. of thread: 2
components:
1. Mle bed
2. Bobbin case
3. Feed dog
4. Pressure foot
5. Needle
6. Spool Pin
7. thread guide
8. Handle Wheel Function of components
9. stitch length regulator 10. Thread tension
11. Thread Plate.
12. Needle Plate
13. Needle bon.
14. Take up laver.
15. Pressure foot bar.

Function of components :

1. Thread guide: It holds the thread in position from the Spool to the needle.

2. Take up leven: It fits to the body of the arm. Its ups and down motion feed the thread to the needle.
3. Bobbin case: This moves in position to catch the top thrend and form the Stitch.
4. Pressure foot: It is fixed to the presence bure to bold the Cloth firmly in position when lowerved.
5. Stitch regulator: This control the length of stitch.
6. Needle Plate: A semic ular dise with a hole allow the needle to pass through it.
7. Feed dog This consists of a set of depth fitted blow the needle Plate It helps to more cloth forward while sewing.
8. Slide Plate: A nectangular plate which facilitates the removal af the bobbin case.

Working principle:

1. The Bingle nudle luck stitch sewing mye is getting crusade from the electrical motor. The moster copy pants of the mie are Sly wheel, needle bar, bobbin holdere, feed domestic together With pressure foot.
2. The flywheel drives the sewing mye mosten copy shaft
3. The rotation of the mastere copy shaft moves the needle a total bike of upwards togethen with downward movements.
4. The feed day has to penforim 4 half motion for every bike of Stitch Formation
5. The feed dog delivers the trequired amount of textile needed Intruyeon adjusting the feed bracket enneally.
6. All these motion piece of employment together foam the single motion of mostern copy shaff together with assist the mle to shope the stitch.

Adrantage:

1. No seam impression on thin woven fabric
2. Lowen thread consumption than double Chain Stitch.
3.Some seam strength the upper and lowen sides.
4. Easy tying of the serm end. nevense sewing.

Disadvantage:

1. considerable mechanical stress on the sewing thread when Forming the stitch.
2. Lower productivity owing to bobbin Changing.


Conclusion: By this experiment we are able to know about the port and thread path of a single needle lock stitch sewing me which will be useful for the future.