Spinning Production & Other Calculation

Spinning Calculation 8 Conversion of Weight units 1kg = 2.2046 lbs 1kg = 1000 grams 1gm = 15.432 grains 1lbs = 453.6 grams 1lbs = 16 oz  1lbs = 7000 grains 1grain = 0.0029 oz  1oz = 437.50 grains 1penny = 24 grains 1ton = 2204.6 lbs 1bundle = 10 lbs 1bag = 100 lbs 1mund = 40 kg 1mund = 88.18 lbs

Conversion of length units 1m = 1.0936 yards 1m = 39.37 inches 1m = 100 cm 1m = 1000 mm 1cm = 10 mm 1yard = 36 inches 1yard = 0.9144 meter  1yard = 91.44 cm 1ft = 12 cm 1ft = 30.48 mm 1hank = 840 yards

Moisture Relation for Textile Materials Ma terials

 

!100 M.R = w  !100 w"!100 M.C = w  w"!100 = &1"%  100' 100' M = %  &1"% 100' C.C.!  =  ! &100"%  100' 100"%)' " = (.(.$ !&100  100"%)' C.C.! = C.C.! = "%) 100' C.C.! = C.C.! = "&!%  100'

 

"m

           

 D 1 + D 2 + D 3 √  D

¿¿

w#$!100

 ' *

  #olume  

of air = air = area &+eet s,' ! liner s-eed &+t#min' $ % $/ =  $ % $/  $ $ % $/ $m = ( % (/  $

&lo' Room ( Carding )ection      

total trash +ed !100 Cleaning *+ciency = *+ciency = trash remoed  total t+ ! 100 t+tr  t+ ! 100 *+ciency = tr    t+ =    t+ !aste = trash % lint 

Department of Textile Engineering (BUITEMS, Quetta)

Spinning Calculation 8 !aste *xtracted = weight +ed ! waste)   !aste *xtracted = weight +ed , weight deliered   !eight "elivered = weight +ed - waste etracted   !eight "elivered = weight +ed ! &100 , w  100'   !eight ed = weight deliered ! &100  100 , w'   /ap length &directly -ro-ortional' la- change wheel   /ap length = la- length constant ! la- length constant wheel   &eatsmin = r-m o+ beater ! nmber o+ strikers   &eatsinch = beats -er minte  +eeding rate &inches#min'   &eats Constant = beats  inch ! r-m o+ -addle roller    &eats Constant = beat -er minte  +eeding rate   *+ciency = actal -rodction  calclated -rodction ! 100   0ctual production = calclated -rodction ! eciency    0ctual production = weight o+ la- &lbs' ! nmber o+ la-  hr    s.s o+ -addle roller    M."  s.s o+ shell roller    $roduction of &R lbshr2 = -rodction constant !  &shell roller r-m' ! $ &oz#yd'   $roduction of card lbshr2 =  ! 36 ! 60 ! 1 ! 36 ! 840 ! cont      $roduction of card lbshr2 =  ! 36 ! 60 ! &weight in ozs' !   36 ! 16  -rodction o+ one   3o of scutchers re4uired = +eeding rate o+ cards   sctchers 3o of card re4uired = -rodction o+ blow room  +eeding rate o+ card de-tt   yds ! 1.0936 ! 60 !    $roduction of card lbshr2  deliery rate &m#min' ! grain   7000       Time to complete full card can = slier length &yds'  deliery rate &yds#min'  -rodction o+ one   3o. of scutchers re4uired =  -rodction o+ blow room   sctchers  -rodction o+ one card   3o. of card re4uired = -rodction o+ card section     Tension "raft =  s.s-eed o+ (.(.%  s.s-eed o+ o:er   yd      Total /ap 'eight = la- length ! weight   

 

"Trumpet guide2 = 0.015625 ! cont !

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!aste5 age = in-t ,  ot-t ! 100 ;n-t

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√ W 

"ra' frame )ection   0ctual            

weight#yd +ed ! o. o+ doblings "raft  = weight#yd deliered $roductionlbshr2 = deliery rate &m#min' ! 1.0936 ! 60 ! o. o+ delieries#7000 $roductionlbshr2only for t'o deliveries2= deliery rate &m#min' ! 0.45 !grains    yd !   ! 60 ! tension dra+t !  $roductionlbshr2 = 36 ! 840 ! hank slier   -rodction o+
6nilap )ection Department of Textile Engineering (BUITEMS, Quetta)

Spinning Calculation 8    

$roductionlbshr2 = deliery rate&yd#min' ! la- weight &grains#yd' !60 !1.0936 !    7000 3ote = 1 penny = 78 grainsyd 

Comber )ection  

$roductionlbshr2 =

= ! 7000 !

 

> !  ! ? ! &100 , $' ! 60 !  36 ! 100

3ote / = lap 'eight in grainyd   = feed rate in inchesmin 3 = nipsmin ! = noil 5age extracted  9 = no of comber heads

)implex )ection eeding Rate = : ; " dia of back roller2 ; Rpmback roller2 "elivery Rate = : ; " dia of front roller2 ; Rpmfront roller2 T$< = @A √ count delivered T$< =

 

s-indle s-eedBBBBBBBBBBBBBBBB eliery rate or >.% deliery in inches  min 1 !  $roductionlbshr2 = +ront roll deliery ! 60 ! 36 ! 840 ! cont  ! 60 ! o. o+ s-indles !  $roductionlbshr2 = Cyer r-m @; ! ?ank roing ! 36 ! 840

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!  $roductionlbshr2 = 5.7 ! Cyer r-m spindles mc2 @; ! ?ank roing Cyer s-eedBBBBBBBBBBBBBB T$< = eliery rate or >.% deliery in inches#min C$M = +ront roll deliery &inches#min' /obbin circm+erence

 

C$<

   

 

¿  

(ABBBBBBBBBBBBBBB

=iner s-eed o+ bobbin rail &m#min'

 

C$<

¿ (A √ count delivered

TC$3*!2 = @(&old' !  

/.! = =.$ &old' !

√ count ( old )    √ count ( new )

√ count ( old )    √ count ( new )

√ count ( old )    √ count ( new ) ¿ winding rate  deliery rate   Roving Tension  

     

for 17

&.! = /.$ &old' !



&b , +'  l

Roving Tension = &b , +'  +ront roll deliery &inches -er min' /ifter Constant = (; ! li+ter wheel Turns per meterT$M2 = Cyer r-m#deliery s-eed & meter -er min'

Department of Textile Engineering (BUITEMS, Quetta)

Spinning Calculation 8          

 "raft = cont delier    cont +ed 3e' "C$ = old ( ; old dra+t    new dra+t  3e' "C$ =  old ( ; old cont    new cont  3o. of )implex re4uired =  -rodction o+
Ring rame )estion                    

! 1 ! 1 ! 60 ! 8 ! 16 !  $roduction>$)2 = s-indle s-eed @; 36 ! 840 ! cont   ! 60 !8 !16 !  $roduction>$)2 = 36 ! 840 ! cont  >$) from bagsday = total bags  total +rame ! o. o+ s-indle -er +rame 3o. of ring frame re4uired = total -rodction o+ sim-le section  +eeding rate o+ one ring +rame Traveler speed = s-indle s-eed , winding s-eed !inding speed = +ront roll deliery &inches -er min'  bobbin circm+erence Traveler angle = bare bobbin dia  +ll bobbin dia /inear speed of traveler msec2 = #1000 ! 60 'here " is ring dia ( 3 is spindle speed2

 0uto Cone )ection    

Cone /engthmeters2 = cont ! cone weight &lbs' ! 840  1.0936 $roductionlbshr2 = deliery rate &m -er min'  ! o. o+ s-indles ! 60 ! 1.0936 !     840 $roduction per spindlelbshr2 =  ! ia o+ rm ! rm %A ! 60 !  36 ! 840 ! cont 

>pen *nd $roductionRotor gmhr2 = 0.0006 !  ! teD !   @.> Rotor )peed2 $roductionRotor lbshr2 = 0.0019 !  !   @.A ! &cont'D T.  @.A ! 9.61

)ome >ther Relations  0." = A. ! 100  &100 , $)'  0." = cont deliered   cont +ed  0." = weight +ed  weight deliered  . !aste5 = &. , A.' ! 100   M." = . ! &100 , $)'  100 M." = s.s o+ deliery roll ! rier gear  s.s o+ +eed roll ! rien gear  M." = s.s o+ deliery roll s.s o+ +eed roll Condensation actor = s.s o+ cylinder

Department of Textile Engineering (BUITEMS, Quetta)

'here 3 is

Spinning Calculation 8 s.s o+ do:er "ensity = mass  olme ?@.? = te ! cont  Aarn "iameter =  k     √ count  is Constant2

M.Aasir 0li Bhan.

?-T*-

Department of Textile Engineering (BUITEMS, Quetta)

& !here k