Study on 3- Needle chain stitch sewing machine.

Experiment No.: 06

Experiment Name: Study on 3- Needle chain stitch sewing machine.

Introduction:

The machine with which fabric or garments are sewn that machine is called the sewing machine. Chain stitch is a sewing and embroidery technique in which a series of looped stitches from a chain like pattern. There are various type of sewing machine fir making of chain stitches with one or more than lone threads.In this type of sewing machine there may have one or more than lone needle.There are adjustments of various types of feed mechanism with the chain stitch machine.

Objectives:

1. To obtain a clear knowledge a particular action of different parts if 3-needle chine stitch sewing machine.
2. To clearly observe the mechanism construction parts of chain stitch sewing machine.

Main parts:

1. Machine bed.
2. Feed dog.
3. Pressure foot.
4. Foot peadal.
5. Needle.
6. Pressure foot level.
7. Reverse lever.
8. Spool Pin.
9. Stitch length regulation.
10. Thread guides.
11. Thread tension.
12. Throat plate.
13. Needle plate.
14. Handle wheel.
15. Needle bar.
16. Pressure foot bar.
17. Looper.
18. Oil pump.
19. Take up lever.

Function characteristic:

1. The machine are to be provided with a in dined cranked type looper mechanism ensure it is in good durability.
2. It is very easy to set the machine to perform consideration stitching by operating the lever condensation stitches the prevent the thread from fraying can be consistently sewn.
3. Stitch length can be adjusted with ease.
4. Inner equipped with mechanical puller engaged with main shaft make the feed corresponding even more very suitable for medium thick fabric.

Conclusion:

Chain stitch is made by using one or more group of threads .By this experiment we able to know about the parts of 3- needle chain stitch sewing machine and their functions clearly. This sewing machine will be useful for the future.