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Yarn tension monitoring and setting system

  • US 8,175,740 B2
  • Filed: 02/19/2008
  • Issued: 05/08/2012
  • Est. Priority Date: 02/20/2007
  • Status: Expired due to Fees
First Claim
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1. A yarn processing system for simultaneously processing a plurality of yarns, said system comprising:

  • a yarn processing machine configured for one of twisting, texturizing and dyeing each yarn of the plurality of yarns, said yarn processing machine defining respective yarn channels for each yarn of the plurality of yarns and including a machine control system;

    a plurality of rapier or projectile yarn feeding devices each configured for use with a rapier or a projectile weaving machine, each said yarn feeding device including a stationary storage drum, a rotatably-driven winding element and an electronic speed control, each said yarn feeding device corresponding to one yarn of the plurality of yarns entering said yarn processing machine;

    a yarn tensioning assembly for generating and maintaining a predetermined yarn tension, said yarn tensioning assembly including a plurality of closed yarn tension feedback regulation loops each corresponding to one yarn of the plurality of yarns entering said yarn processing machine, each said loop including one of said electronic speed controls, an individually controlled tensioner, an individual tensiometer and a regulator for regulating and maintaining a set yarn tension in each yarn; and

    a tension monitoring and setting system common for all of said yarn feeding devices for centrally setting and monitoring the yarn tension in each yarn, said tensiometers being connected in parallel to said tension monitoring and setting system.

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