Study on P.M.D chain stitch sewing machine.

Name of the Experiment: Study on P.M.D chain stitch sewing machine.

Introduction: P.M.D. chain stitch machine are flatbed, multi-needle, double chain stitch machine. It is a multipurpose sewing machine for attaching line tapes, elastic, waistband and sewing the front of the shirt and also used for smocking and shirring which are ideal for underwear, sportswear and ladies clothes.

Machine specification:

Name: P.M.D chain stitch sewing machine.

Brand name: MAX
Model: MAX-1411
Origin: China
Function: To attach line taper, elastic and waistband.

Machine Parts:
1) Thread stand: There is four thread stand which holds the bobbin.
2) Thread guide: Which indicates the way of the thread.
3) Tension post: Four needle thread tension post and four looper thread tension post to give uniform tension.
4) Needle thread guide: To guide the way of needle thread.
5) Needle thread take-up lever: To pull the tread after each stitch.
6) Needle clamp: To hold the needle with needle bar.
7) Presser foot: To press the fabric surface.
8) Feed dogs: To move the fabric forward by a distance equal to the stitch length.
9) Roller set up: To pass the fabric forward.
10) Looper: To form loop formation.
11) Throat plate: Helps the fabric to move forward.
12) Looper thread take-up lever: To pull the looper thread back.
                                               

Other Information:
1) Machine R.M.P=2850
2) Power = 250 watt
3) Voltage = 220V
4) HP= 3/4 HP

Working principle:
1) At first, we keep the bobbin on the thread stand.
2) Then we passed the thread according to their passing path.
3) We also maintain the thread tension with the help of tension post.
4) Thread passing through into the needle and looper by setting up machine properly.
5) Then we power on the machine for sewing a fabric.
6) After that, we did the sewing of denim fabric by the P.M.D chain stitch sewing machine.

Precaution:
1) We should maintain proper speed pressing the foot pedal correctly.
2) We should keep distance our hand and finger from the needle during work with sewing machine operation.