RSB 851 CALCULATIONS

RSB 851 GEARING  CAL CULATION

40/1 CK

HANK DELIVERED        =    0.120

HANK FED              =    0.12

MOTOR SPEED           =    3000 R.P.M

MOTOR PULLEY DIA      =    136 mm

MACHINE PULLEY DIA    =    184 mm

WEB TENSION DRAFT CHANGE WHEEL  ( W3 ) =    57.8 mm

COILER PLATE TUBE SPEED CHANGE WHEEL ( DW1 )    =    366 mm

COILER PLATE TUBE SPEED CHANGE WHEEL ( DW2 )    =    109.5 mm

COILER CHANGE GEAR ( DW3 )   =    66.2 mm

CAN PLATE MOTOR GEAR RATIO   =    15.474 : 1

CAN PLATE SPEED CHANGE GEAR  ( W5 )    =    34 T

MAIN DRAFT CHANGE WHEEL ( NW1 )   =    46T

MAIN DRAFT CHANGE WHEEL ( NW2 )   =     61T

BRAK DRAFT CHANGE WHEEL (W4 )         =    38.3

INTAKE TENSION  CHANGE WHEEL ( W8 )   =    76 mm

INTAKE TENSION  CHANGE WHEEL ( W9 )   =    56 mm

CREEL TENSION CHANGE PULLY (W1 )  =    148.1 mm

3/3 DRAFTING SYSTEM

FRONT BOTTOM ROLLER DIA (d1 )         =    40 mm

SECOND BOTTOM ROLLER DIA ( d2 )   =    30 mm

THIRD BOTTOM ROLLER DIA ( d3 )    =    30 mm

DRAW OFF ROLLER DIA     =    55 MM

SCANNING ROLLER DIA     =    94 MM

FEED ROLLER DIA         =    50 MM

CREEL ROLLER DIA        =    80 MM

NO.OF ENDS UP      =    8

FULLCAN LENGTH IN METERS      =     4000m

DIFFERENTIAL GEAR RATIO      =    1 : 0.75       

COILER.CAL ROLL SPEED SPEED or DRAW OFF ROLL SPEED

=    3000 * 136/184 * 114.6/140.2 * W3/50

=    2113.37951994

DELIVERY SPEED     =    2113.3795 * 55 * 3.14

                   =    361.8504 M/MIN

FRONT ROLLER SPEED      =    3000 * 136/184 * 114.6/89.1

                       =     2851.9982r.p.m

FRONT ROLLER SURFACE SPEED     =     F.R.SPEED * DIA * 3.14 / 1000

                              =      358.21097 m/min

SECOND ROLLLER SPEED       

=    2217.3913 * 38/100 * 0.75 * NW1/NW2 * 37/37 * W4/30

          =    811.2065r.p.m

SECOND ROLLER SURFACE SPEED    =     S.R.SPEED * DIA * 3.14 /1000

                         =        57.311 m/min

THIRD ROLLER SPEED  

=    2217.3913 * 38/100 * 0.75 * NW1/NW2 * 37/37

          =   476.5573 r.p.m

THIRD ROLLER SURFACE SPEED   =    THIRD.R.SPEED * DIA * 3.14 / 1000

                            =      44.8916 m/min

SCANNING ROLLER SPEED  

=     2217.3913 * 38/100 * 0.75 * NW1/NW2* W9/W8 * 22/51

     =      151.4754 r.p.m

SCANNING ROLLER SURFACE SPEED     =   SCAN ROLL SPEED * DIA * 3.14 / 1000

                                 =    151.4754 *94 * 3.14/1000

                                   = 44.70947 m/min

FEED ROLLER SPEED   

=   2217.3913 * 38/100 * 0.75 * NW1/NW2* W9/W8 * 48.2/60      =     282.08852 r.p.m

FEED ROLLER SURFACE SPEED  =  FEED ROLLER SPEED * DIA * 3.14 / 1000

                          =      44.28789 m/min

CREEL ROLLER SPEED 

=    2217.3913* 38/100 * 0.75 * NW1/NW2* W9/W8 * 48.2/W1 * 60/40

=      171.42449 R.P.M                        

     CREEL ROLLER SURFACE SPEED  =   CREEL .R.S.SPEED * DIA * 3.14 /1000

                           =     43.061831 m/min

DRAFT IN BET.FRONT ROLL & DRAW OFF ROLL   

( WEB TENSION DRAFT  or DRAW OFF TENSION)                

SURFACE SPEED OF DRAW OFF ROLL

=         SURFACE SPEED OF FRONT ROLL

                   361.8504

              =    358.21097 =    1.01016

                                 SURFACE SPEED OF FRONT ROLLER

MAIN DRAFT            =           SURFACE SPEED OF SECOND ROLLER

                358.21097

         =        57.311       =       6.2503

                                     S.S.OF.FRONT ROLLER

 MAIN DRAFT CONSTANT   =      S.S.OF.SECOND ROLLER when  main draft

                        change wheels areassumed as only one tooth

                         358.21097

                =          75.9993     =          4.7133  

MAIN DRAFT         =        DRAFT CONSTANT * NW2/NW1

                   =         4.7133 X 61/46

                  =         6.250

                        SURFACE SPEED OF SECOND ROLLER

BREAK DRAFT        =     SURFACE SPEED OF THIRD ROLLER

                  57.311

             =     44.8916     =    1.2766

                             SURFACE SPEED OF BACK ROLLER when break

                            draft change wheel is assumed as onetooth

BRAEK DRAFT CONSTANT    =        SURFACE SPEED OF THIRD ROLLER

                        1.49637

                   =    44.8916  =    0.0333329

BRAEK DRAFT    =     BREAK DRAFT CONSTANT X BREAK DRAFT CHANGE WHEEL   

          =      0.0333329 x 38.3  =   1.276

DRAFT BET. THIRD ROLL &SCANNING ROLL ( SLIVER TENSION DRAFT or

 IN ATKE TENSION DRAFT )

SURFACE SPEEDOF THIRD ROLLER

=         SURFACE SPEED OF  SCANNING ROLLER

           44.8916

=          44.70947     =      1.00407

                                          SURFACE SPEED OF SCANNING ROLL

DRAFT BET.SCANNING ROLL & FEED ROLL   =     SURFACE SPEED OF FEED ROLL

 ( IN FEED TENSION )         44.70947

                         =   44.28789      =    1.00951

                                         SURFACE SPEED OF  FEED ROLLER

DRAFT BET. FEED ROLL & CREEL ROLL =       SURFACE SPEED OF CREEL ROLLER

 ( CREEL TENSION DRAFT )                     44.28789

                                   =    43.061831    =     1.02847

TOTAL DRAFT     =    MAIN DRAFT * BREAK DRAFT

 =    6.2503 * 1.2766 =     7.979

                     ( SUPPLIED SLIVER WEIGHT ) * ( NO OF DOUBLINGS )

TOTAL DRAFT     =               DELIVERY SLIVER WEIGHT

                   HANK DELIVERED   X  NO.OF DOUBLINGS

TOTAL DRAFT   =       HANK FEED

                    0.12  X 8

              =    0.12          TOTAL DRAFT    =    8

                    HANK DELIVERD  x  no.of doublings

 ACTUAL DRAFT      =      HANK FEED

                   0.12 x 8

              =    0.12          =    8

                        SURFACE SPEED OF DELIVERY ROLLER

MACHANICAL DRAFT   =      SURFACE SPEED OF FEED ROLLER

                   361.8504

              =    43.061831     =    8.4030   

COILER PLATE TUBE  SPEED OR COILS PER MINUTE      

=    3000 * 136/184 * 114.6/140.2 * DW3/90 * DW2/DW1

=     398.86640 r.p.m

CAN PLATE  SPEED  OR LAYERS PER MINUTE  

=    3000 * 136/184 * 114.6/140.2 * DW3/90 * 1/15.474 * W5/133

=     22.025161 r.p.m

                           COILER PLATE SPEED

COILS PER LAYER   =         CAN PLATE SPEED

                 398.86640

           =     22.025161   =      18.1095 COILS / LAYER

PRODUCTION PER DRAW FRAME  / 8Hrs / AT 100% EFFY

=    361.8504/0.9144 * 1/840 * 1/DEL.HANK * 1 / 2.204 * 8 * 60

=    854.9918 KGs / DRAW FRAME

PRODUCTION PER DELIVERY PER 8 Hrs

          17  X  FRONT ROLL SPEED IN MPM  X  EFFY   

     =         60  X  SLIVER HANK DEL  X    100

      =   0.625     x    DEL SPEED IN MPM   X    EFFY/100

     =    854.369 KHS