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US 6,516,734 B1Granted
Independent servo motor controlled scroll-type pattern attachment for tufting machine and computerized design system
AssigneeTuftco Corporation
InventorsMichael R. Morgante, Mike Bishop, Randall E. Stanfield, Eric J. Vaughen
Life of this patent
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Abstract
The present invention provides a scroll-type yarn feed attachment for tufting machines characterized by independent servo-motor control of yarn feed rolls.
Claims9
In a multiple needle tufting machine adapted to feed a backing fabric from front to rear through the machine having a plurality of spaced needles aligned transversely of the machine for reciprocable movement through the backing fabric by operation of a rotary main drive shaft, a scroll-type yarn feed mechanism comprising:
- (a) a plurality of yarn feed mounting plates extending generally in the direction of the yarn feed and having opposed planar sides perpendicular thereto;
- (b) at least two independent yarn feed rolls on each of said yarn feed mounting plates;
- (c) a separate servo motor associated with each of said independent yarn feed rolls;
- (d) at least one controller electronically connected to each said separate servo motor.
1 more element
Dependencies are inferred from the claim text.