Ring spinning machines are the most commonly used spinning machines in the world. They consist of a spindle that twists the yarn and a ring and traveler that maintain tension. The key operations are creeling, drafting, twisting, winding, and doffing. Drafting draws out the fiber through three rollers. As the traveler circles the ring at high speeds, it picks up fibers from the front roller and twists them onto the spindle. Ring spinning can produce fine to coarse yarns from 5-1000 tex with good strength suitable for many applications. However, it has limitations such as low production rates and frequent doffing requirements.

1. Ring Spinning Machine
Presented By-
Md.Redwan Islam
ID-162003007
Presented For-
PROF. DR. MD. ISMAIL
CHOWDHURY
Department of Textile
Engineering
Green University of Bangladesh

2. Ring Frame (1828)

3. Spindle ( heart of spinning )
Different portion of ring spinning machine:

4. Ring & Traveller

5. Rubber Apron & cots

7. Operations involved in ring frame:
1. Creeling
2. Drafting
3. Twisting
4. Winding
5. Building
6. Doffing

9. 1. Creeling
Creeling
Suspended
Type
Skewer
Type

10. 2. Drafting

11. Back Roller Mid Roller Front Roller
2 draft 8 draft

12. Twist = Spindle R.P.M
TPI = Spindle R.P.M Surface Speed of Front Roller
3. Twisting

13. Traveller
• Travels around the ring at (30-35) m/sec.
• The hardness of the running traveler (650-
700) vickers.
• Contact pressure between ring and traveler
is up to 35N/mm².
• Generate high temperature (300-400°C)
• The mass of traveller is 16-120gm/1000.

14. Ne Traveller Weight
SS Traveller Weight
RD Traveller Weight
BD Traveller Weight
Factors considered for selection of a
traveler:

15. Main advantageous features of ring
spinning machine:
• Most usable spinning machine in the
world.
• Fine to coarse (5-1000 tex) yarn can be
produced.
• Yarn has very good strength.
• Yarn is suitable for all next process.
• More than 80% of total yarn is
produced by ring spinning machine

16. Limitations of ring spinning:
• Low twisting rate
• Low production
• Small bobbin size
• Frequent doffing
• High energy consumption
• Limited speed of traveller