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Drawing

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  • 1. Objectives •To parallelize the fibers of card sliver and align them to the axes of the sliver through drafting process. •To improve the regularity in sliver weight per unit length though doubling of sliver. •To mix different slivers to give a homogenous blended sliver. •To straighten out the fiber and improve the fiber extent. •To improve uniformity and evenness so that the final sliver become more regular resulting uniform yarn.Sunday, October 23, 2011 TEXTILE INTERNSHIP- DILIP SINGH, KUMAR SARVESH, PRASHANT GAURAV & RAJEEV SHARAN/ DFT-05/ NIFT BANGALORE
  • 2. Drawing Breaker draw frameDuring this process 8 slivers produced by carding machine areparallelized to produce one sliver. Finisher draw frame.It is done to give further strength and stability to the sliver. Thedrawn sliver from breaker draw frame is again drawn. In thisprocess the sliver drawn in the breaker draw frame further used.Sunday, October 23, 2011 TEXTILE INTERNSHIP- DILIP SINGH, KUMAR SARVESH, PRASHANT GAURAV & RAJEEV SHARAN/ DFT-05/ NIFT BANGALORE
  • 3. The machinery in use for breaker drawing frame•LDO/25 ( manufacturer– Lakshmi industries)•LDO/6 ( manufacturer – Lakshmi industries ) Sunday, October 23, 2011 TEXTILE INTERNSHIP- DILIP SINGH, KUMAR SARVESH, PRASHANT GAURAV & RAJEEV SHARAN/ DFT-05/ NIFT BANGALORE
  • 4. Features of LDO/25 •Maximum speed – 400 metre per minute •No. Of card sliver – 8 •No. Of heads – 2 •Drafting system – 3 over 5 •Diameter of top roll – 40 mm •Pressure of top roll – 68 – 72 kg •Capacity of the can – 3000 m•Production capacity for 30s count sliver (at 85% efficiency )– 765 kg sliver/shift/machine.•Time taken to fill one can of 3000 m – 10 minutes. Sunday, October 23, 2011 TEXTILE INTERNSHIP- DILIP SINGH, KUMAR SARVESH, PRASHANT GAURAV & RAJEEV SHARAN/ DFT-05/ NIFT BANGALORE
  • 5. Stop motion in LDO/25 Breaker drawing frame1. Electrical creel stop motion: if broken sliver passes through the pair of drawing frame the drawing frame will automatically stop.2. Full can stop motion: if pre-set length of sliver is delivered in the can drawing frame will automatically stop.3. If the door of machine is opened while the machine is running the machine will automatically stop.4. Calendar roll lapping stop motion: in case of sliver lapping over the calendar roll the machine will stop. Sunday, October 23, 2011 TEXTILE INTERNSHIP- DILIP SINGH, KUMAR SARVESH, PRASHANT GAURAV & RAJEEV SHARAN/ DFT-05/ NIFT BANGALORE
  • 6. Features of LDO/6 •Drafting system – 3 over 3 •Can size – 24 * 42 inch •No. Of heads – 2 •No. Of card slivers per head – 8 •Maximum speed – 600 metre per minutes•Production capacity for 30s count ( at 85% efficiency )– 1100 kg/shift/drawing frame Sunday, October 23, 2011 TEXTILE INTERNSHIP- DILIP SINGH, KUMAR SARVESH, PRASHANT GAURAV & RAJEEV SHARAN/ DFT-05/ NIFT BANGALORE
  • 7. Difference between Stop motionsof LDO/25 & LDO/6 The stop motion of LDO/6 is similar to the LDO/25, the only difference being the LDO/6 starts automatically once the stoppage causing problem is sorted out.Sunday, October 23, 2011 TEXTILE INTERNSHIP- DILIP SINGH, KUMAR SARVESH, PRASHANT GAURAV & RAJEEV SHARAN/ DFT-05/ NIFT BANGALORE
  • 8. Machinery used for finisher draw frame LRSB – 851 (RIETER)Features of LRSB – 851 (RIETER) •Drafting system – 3 over 3 •Total draft – 8 •Number of head – 1 •Number of card sliver feed – 8 •Can size – 20*40 inch •Number of motors – 4 •Diameter of top roll – 38mm •Diameter of calendar roll – 55 mm• Production capacity of the finisher drawing frame – 850kg/shift/drawing frames Sunday, October 23, 2011 TEXTILE INTERNSHIP- DILIP SINGH, KUMAR SARVESH, PRASHANT GAURAV & RAJEEV SHARAN/ DFT-05/ NIFT BANGALORE
  • 9. Stop motion for LRSB – 8511. Can change stop motion: After the can is filled and another vacant can is not available the machine will stop for itself unless the empty can is made available.2. If the door of machine is opened while the machine is running the machine will automatically stop.3. Electrical creel stop motion.4. Full can stop motion.5. Calendar roll lapping stop motion. Sunday, October 23, 2011 TEXTILE INTERNSHIP- DILIP SINGH, KUMAR SARVESH, PRASHANT GAURAV & RAJEEV SHARAN/ DFT-05/ NIFT BANGALORE