Principle of Lock Stitch formation

The mechanism of lock stitch formation can be illustrated as below-

Mechanism of Lockstitch Formation

 

Steps involved:

1. The needle is penetrated into the fabric.

1

2. The needle reaches to its lowest position and the rotary hook is ready to catch the needle thread.

2

3. As the needle moves upward from its lowest position, the needle thread forms a loop which is caught by the point of the rotary hook.

3

4. The hook enlarges the needle thread loop & is guided around the bobbin thread.

4-1 4-24-3

5. The take – up lever tighten the stitch into the fabric & the fabric is fed forward.

5

6. The cycle repeats.

1

Advertisements

Posted on December 24, 2013, in Garments Technology-II. Bookmark the permalink. Leave a comment.

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s

%d bloggers like this: