Yarn feeding system for high speed knitter

Details Yarn feeding system for high speed knitter Yarn feeding system for high speed knitter

D - Textiles, Paper

04

B

D04B 15/38 (2006.01) D04B 15/48 (2006.01)

Patent

CA 2117052

YARN FEEDING SYSTEM FOR HIGH SPEED KNITTER Abstract A system for feeding a plurality of strands of material (700) such as yarn, in unison, along an array of separate feed paths (700) that extend from a bank of sup- ply packages (540) to a knitter head (150) utilizes a bank of positive drive units (620) that are arranged in an ar- ray that extends about the knitter head (150) to coordi- nate and uniformly tension such strand reaches as extend from the positive drive units (620) to the knitter head (150). The feeding of the strands (700) takes place while the bank of supply packages (540), the bank of positive drive units (620), the knitter head (150) and the array of feed paths (700) all are rotated about an axis (175) that extends substantially centrally among the rotating feed paths (700). Each feed path (700) has a first reach that extends from a separate supply package (542) to the cap- stan (665) of a separate one of the positive drive units (620), a second reach that is wrapped around the capstan (665) of its positive drive unit (620), and a third reach that extends from its positive drive unit (620) to the knitter head (150). The capstans (665) of the positive drive units (620) are power driven, rotate in unison, and tension the first reaches as is required to pay out the strands from their supply packages (542). Because the second reaches wrap tautly about the capstans (665) of the positive drive units (620) and rotate therewith at uniform speed, the third reaches are fed to the knitter head (150) at a selected uniform feed rate and under substantially uniform tension regardless of such variations in tension as may be imparted to the first reaches as they are payed from their supply packages (542).

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