Automation in Yarn Manufacturing / Ring Spinning / Cotton Spinning

Automation in Ring Spinning
S. M. Hossen Uzzal
B.Sc. in Textile Technology
Monno Fabrics Ltd. Manikgonj
Email: uhossen@gmail.com




Introduction:
In any manufacturing industries, final goal that everyone strives for is to make completely automatic machinery that takes in raw material on its one end and delivers finished product from the other end. Increase the productivity and maintain the supreme quality is only possible when are used automation properly. Automation is widely used in different branches of textile manufacturing process. Among the different branches of textile automation is hugely used in spinning technology.
Automation in ring spinning
In yarn producing technology in textile industries ring frame is one of the most important component. During the last two decades components of ring spinning machines have been greatly improved, changes in drafting system, drive systems and robotics have enabled large gains in productivity, flexibility and quality. Most of the technical advances in ring spinning were aimed at improving the performances on the existing technology. These are all achieved by the Automation.

Automation in Yarn Spinning:
A yarn test that used to take hours to perform 20 years ago can now be done in a matter of seconds using the HVI system. This process has been achieved through constant innovation and updated automation in the plant capacities. They are pointed out below:

1. Yarn forming process has seen advancements and automation by introduction of newer methods of spinning apart from ring spinning like open-end spinning, airjet spinning and Murata Vortex System(MVS)

2. Cotton mixing in blow room has been automated so that cotton from several bales can be drawn and mixed together, forming a more homogeneous mixing of cotton, thus reducing batch to batch variation in cotton spun yarn lots.

3. Carding machines using chute feed systems, auto levelers for improvement in quality or productivity and reduced handling have helped in increasing evenness in the yarn.

4. The ring spindle speeds have gone upto 20,000 and high-speed rotors upto 1,00,000 rpm are available. Today, spinning machines can produce yarns upto 20 times faster than what they used to produce 20years ago.  
 
5. Autoconers with splicing and yarn fault detection have been devised to obtain yarns with lower unevenness and better quality.

Advantages of Automation in Ring Spinning:
  1. Very reliable system.
  2. Controlled by servomotor and servo drive.
  3. Setting alteration by key pad data entry.
  4. No special skill needed for setting
  5. This system is still little expensive to implement
  6. Assy time reduces enhancing manufacturing capacities.
  7. Setting done at the press of a button.
  8. No special skill needed for setting
  9. Combines the advantages of the servo drive system and at the same time is cost effective.
  10. All rollers driven by individual motors, controlled by individual drives.
  11. Possible to alter draft and twist from the key pad. Fine tuning of twist & draft adjustments possible.
  12. Possible to manufacture fashion yarn like multi twist , multi count , slubyarn.
  13. Interfacing & drive communication through Profibus and other types of protocols makes controls simple and very accurate.
  14. Automatic Doffer system is now gaining customer acceptance.
  15. Reduced manpower requirement.
  16. Increase machine productivity.
  17. Reduce need for supervision.
  18. Increase life of components and accessories like spindle & bobbins. 
 
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Editor-in-Chief:

Mazharul Islam Kiron is a textile consultant and researcher on online business promotion. He is working with one European textile machinery company as a country agent. He is also a contributor of Wikipedia.


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