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Yarn feed split roll apparatus for tufting machine

  • US 4,864,946 A
  • Filed: 11/18/1988
  • Issued: 09/12/1989
  • Est. Priority Date: 11/18/1988
  • Status: Expired due to Term
First Claim
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1. In a multiple needle tufting machine having means for feeding a base fabric longitudinally from front-to-rear through the machine, and a longitudinal row of predetermined length of a plurality of spaced needles aligned transversely of the machine for reciprocable movement through the base fabric, a yarn feed mechanism comprising:

  • (a) a yarn feed support mounted on said machine and having opposite sides,(b) a plurality of spaced parallel yarn feed rolls mounted on one of said sides for rotation about corresponding transverse axes,(c) each of said feed rolls having a driven end journaled on said side of said yarn feed support and having an opposite unsupported free end projecting away from said support,(d) each of said yarn feed rolls having a length substantially less than the predetermined length of said row of transversely aligned needles,(e) yarn guide means for said yarn feed rolls, having means for guiding each yarn from each of said yarn feed rolls to a needle in said longitudinal row,(f) a yarn feed drive shaft operatively connected to each of said yarn feed rolls for driving said yarn feed rolls,(g) high-speed drive means operatively connected to each of said yarn feed drive shafts for selectively driving each of said drive shafts at a predetermined high speed,(h) low-speed drive means operatively connected to each of said yarn feed drive shafts for driving each of said drive shafts at a predetermined low speed, and(i) pattern control means operatively connected to said high-speed drive means and to said low-speed drive means whereby only one of said speed drive means operatively drives any one of said yarn feed rolls at any one time, so that any of said yarn feed rolls is driven at said high speed or said low speed.

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