Experiment Name: Determine the draft between taker in and cylinder, Cylinder and doffer and draft between feed roller and doffer.
Objective of the experiment:
I) To know about draft between different parts of carding machine.
II)To determine the surface speed of some parts of the machine.
III) Draw a diagram of gear equipment and indicate all parts.
Surface speed = Circumference X R.P.M
= πd X R.P.M
Calculation:
Data:
Diameter of taker in = 9.549”
Diameter of doffer = 28”
Diameter of feed roller = 3 “
Diameter of cylinder = 50”
Circumference = πd
Taker in = 9.549 X 3.1416 = 29.99
Doffer = 28 X 3.1416 = 87.96
Feed roller = 3 X 3.1416 = 9.42
Cylinder = 50 X 3.1416 = 157.08
Surface Speed = RPM X Circumference
Surface Speed of Cylinder = 196.36 X 157.08
= 30844.23
Surface Speed of Taker in = 30 X 504.92
= 15147.6
Surface Speed of Doffer = 87.96 X 7.89
= 694.01
Surface Speed of Feed Roller = 9.42 X 1.89
= 17.80
Draft:
Result:
Draft between cylinder and doffer = 0.023
Draft between feed roller and doffer = 38.98
Conclusion:
By this experiment we learnt about how to calculate draft between parts
