3) To increase strength, smoothness and luster.
4) To reduce hairiness.
5) To make sewing thread.
6) To wind a suitable bobbin.
Main parts:
Wednesday, May 16, 2012
3) To increase strength, smoothness and luster.
4) To reduce hairiness.
5) To make sewing thread.
6) To wind a suitable bobbin.
- Creel stand and creel.
- Front roller.
- Yarn guide.
- Ring and ring rail
- Tin cylinder.
- Traveller.
- Thread weight or slip roller.
- Lappet Spindle.
Specification:
Calculation:
- Motor rpm = 1430
- Motor pulley diameter = 6.25²
- Machine pulley diameter = 10.25²
- Tin cylinder diameter = 10²
- Wharve diameter = 1.37²
- Cylinder carrier wheel = 24T
- TCP carrier wheel = 62T
- TCP = 63T
- Front roller diameter = 2’’
Calculation:
Gearing diagram of doubling frame:
 |
| Figure: gearing diagram of doubling frame. |
Result:
1) Spindle speed = 6461.59 rpm
2) Twist constant = 1235.25
3) Front roller delivery = 319.143 inch/min.
4) Existing TPI = 20
5) Production = 14.37 lb/shift/frame.
6) Required TPI = 16.266
7) Required TCP =76.25T
Conclusion:
By this experiment we come to know about various parts and working principle of ring doubling frame. This machine is important for producing double yarn on sewing thread.
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