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Page 36 - Shawl Weaving Artisan - TP
P. 36

    Textile & Handloom                                                               Exercise 1.2.19
           Shawl Weaving Artisan - Winding and Warping

           Perform the setting of a warper drum

           Objectives : At the end of this exercise you shall be able to
           •  set up and operate a warper drum correctly according to given specifications such as yarn count, number
            of ends, warp length, reed width, and other parameters.

             Requirements
              Tools/Equipment’s/Instruments

              •  Warping machine with drum                      •  Calculator
              •  Yarn cones/bobbins of specified count          •  Tensioning device
              •  Creel stand                                    •  Job sheet or work order
              •  Measuring tape

           PROCEDURE

           Step 1: Understand the work order / job sheet        Trainee task: Perform and fill all calculations.

           Trainees must first understand the required parameters:  Step 3: Creel preparation
                                    Example     To be filled    •  Mount correct number of cones in the creel.
            S.No.    Parameter
                                      value      by trainee     •  Thread each end through tensioning  devices  and
              1    Yarn count      40s                             guides.
              2    No. of Ends     400                          •  Maintain uniform yarn tension.
              3    Warp Length     1000 Meters                                  Trainee checklist
              4    Reed Width      100 cm                        S.No.          Task              Done ( /X)

              5    Ends Per Dent   2                                    Correct cones placed
                                                                   1
              6    No. of Sections  2                                   in creel
                   Beam Flange                                          Ends properly passed
              7                    110                             2
                   Width                                                through guides
           Trainee task: Fill the blank column above based on a    3    Tension devices
           given work order.                                            checked and functional
           Step 2: Calculate section and creel settings         Step 4: Set warper drum parameters

           Help trainees calculate                              Trainees will:
           •  Ends per section = Total ends / Number of sections  •  Set yarn tension
           •  Cones per section = Ends per section              •  Adjust drum speed
           •  Creel capacity check                              •  Set drum length using counter/setting knob

                                     Formula/     Trainee                       Trainee checklist
            S.No.    Calculation
                                     example       entry                   Machine
                                                                 S.No.                 Set value Checked ( /X)
              1    Calculation     40s                                     setting
                   Ends per                                             Drum speed
              2                    400÷2 = 200                     1                    e.g., 500
                   section                                              (RPM)
                   No. of cones
              3                    200                             2    Drum length       1000
                   needed in creel                                      setting (meters)
                   No. of layers   Warp                                 Section width
              4    on drum         length/ drum                    3    on drum          50 cm
                   (approximately)  circumference

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