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




       24
   31   32   33   34   35   36   37   38   39   40   41