Determine the draft between taker in and cylinder, Cylinder and doffer and draft between feed roller and doffer.

 

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 taker in and cylinder = 2.04

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