The document discusses the drawing process and machinery used. Drawing involves using a breaker draw frame to parallelize 8 slivers into one, improving regularity. A finisher draw frame is then used to further strengthen the sliver. The key machinery used are LDO/25 and LDO/6 breaker draw frames, and an LRSB-851 finisher draw frame from Rieter. All machinery have features like drafting systems and stop motions to ensure even sliver production.

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 frame
During this process 8 slivers produced by carding machine are
parallelized to produce one sliver.
Finisher draw frame.
It is done to give further strength and stability to the sliver. The
drawn sliver from breaker draw frame is again drawn. In this
process 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 frame
1. 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 motions
of 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 – 850
kg/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 – 851
1. 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