Parts Of Sewing Machine

PARTS OF SEWING MACHINE:

The basic parts of a sewing machine are listed below.

Spool Pin:

Holds the spool of thread in the pin on the top of the machine.

Thread guides:

Hold the thread in position from the spool to the needle.

Tension disc:

This is a simple mechanism where two concave discs are put together, with the convex sides facing each other. The thread passes between the two discs. The tension of the thread is adjusted by a spring and a nut which increases or decreases the pressure on the disc.

Take-up lever:

At the outside end of this lever, there is a small hole through which the thread passes. The lever moves down to loosen the top thread while the stitch is being formed, then it moves up and pulls the loop of thread tight to complete the stitch.

Needle bar:

This is a steel rod which holds the needle at one end with the help of a clamp.

Bobbin case:

This moves into position to catch the top thread and form the stitch, as the needle is lowered into the bobbin chamber.

Presser foot:

This is attached to the presser bar and it holds the cloth firmly in position when lowered.

Presser foot lifter:

This is a lever which is attached to the presser bar for raising and lowering the presser foot.

Stitch regulator:

This controls the length of the stitch. Some regulators can be set to stitch in reverse.

Bobbin winder:

This facilitates the winding of thread on the bobbin. Some are made to stop automatically when the bobbin is full.

Flywheel:

When this is made to revolves, the machine starts to work.

Clutch or thumb screw:

This is in the centre of the flywheel, it engages and disengages the stitching mechanism.

Slide plate:

This is a rectangular plate which can be slid open to remove or put in the bobbin case.

Needle plate or throat plate:

This is a semicircular plate with a hole to allow the needle to pass through it and collect the bobbin thread.

Feed dog:

This consists of a set of teeth fitted below the needle plate. It helps to move the cloth forward while sewing.

Face plate:

This is a cover which when removed gives access to the oiling points on needle bar, presser bar and thread take-up lever.

Pedal:

It is made out of iron. When pressing this with foot, the machine works.

Belt:

This is usually made out of leather, but a cloth Tape, Nylon wire or any other strong rope can also be used.