Automation in Warping and Sizing Process

Automation in Warping and Sizing Process

Hafiz Abdul Mannan
National Textile University, Faisalabad, Pakistan
Phone: 0092-3236052101




Automation in Warping Process:
Other typical features of a modern sectional wrapper are:
  • Feeler roller to apply material specific pressure to obtain exact cylindrical warp build-up;
  • Lease and sizing band magazines
  • Constant warp tension over the full warp width;
  • Automatic section positioning with photo-optical section width measurement;
  • Pneumatic stop brakes;
  • Warp tension regulation for uniform build-up; and
  • Automatic warp beam loading, doffing and chucking.
  • Head stocks are equipped with advanced design features such as precision direct drive, advanced electronics, smooth doffing and programmable breaking
  • Stop motion sensors are used when yarn breaks.
  • Automatic creel movement
  • Yarn length measuring devices are used to measure the warp yarn length.
Automation in warping process
Figure : Automation in warping process
Automation in Sizing Process:
Sizing machine control systems provide a tool for management to insure that all warps are sized identically under standard operating conditions. These monitoring and control capabilities can be included in a computer network of a weaving mill. For years knitting machine manufacturers have been making excellent use of electronics to provide machines that are more automatic and versatile and many refinements of these advances have been made. These automatic machines are already 'islands of automation' that can be incorporated into a CIM network. Automated weaving plants are on the drawing boards. None is yet in operation but should be a reality within a few years. The six production steps winding, warping, sizing, weaving inspection and packing include 16 points of automation. Of these, 12 deal with materials handling or transport. Only four applications deal with automating the machine operations themselves. This includes automated process control on the slasher of
  • Automation on creel zone by pneumatic cylinder
  • Control the tension of yarn by sensors or pendulum roller
  • Control the temperature and level of size paste in size box
  • Control the temperature and level of size paste in size cooker
  • In drying zone, control the temperature
  • Control the percentage of moisture content by sensor
  • Control the headstock system
Automation in sizing process
Figure: Automation in sizing process

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