Method and apparatus for manufacturing wrapped yarns

In a method of manufacturing wrapped yarn wherein a core strand is passed continuously from a remote supply through the bore of a hollow rotatably driven spindle having a free end defining the ingress end of said bore, and a binder strand is delivered from a supply package mounted on said spindle and rotating therewith to the ingress end of said spindle bore to be wrapped around said core strand while traveling through said spindle bore, said binder strand revolving in a ballooning zone extending from the package periphery to the free end of said spindle, the improvement of confining substantially the entirety of said ballooning zone in an enclosure impervious to airborne textile lint or fly, said enclosure terminating in the direction of balloon travel at least generally adjacent the free end of said spindle and defining with said free end an annular exit passage for the binder strand, said enclosure termination providing an access opening for the introduction of said core strand to said spindle bore.

In a method of manufacturing wrapped yarn wherein a core strand of staple fibers is passed continuously from a remote supply along a path through the bore of a hollow rotatably driven spindle having a free end defining the ingress end of said bore, and a binder strand is delivered from a supply package mounted on said spindle and rotating therewith to the ingress end of said spindle bore to be wrapped around said core strand while traveling through said spindle bore, said binder strand revolving in a ballooning zone extending from the package periphery to the free end of said spindle, the improvement of guiding said core strand toward the ingress end of said spindle bore through an elongated guide zone formed of material impervious to textile fly or lint and surrounding said core strand over a portion of its path adjacent said spindle, said guide zone terminating at its downstream end in close spaced proximity to the free end of said spindle to permit the passage of said binder yarn through the clearance space therebetween while restricting the penetration through said space by textile fly or lint released from said staple fiber core strand whereby the entrainment of staple fibers by said binder strand balloon is reduced.

In an apparatus for manufacturing wrapped yarn wherein a binder strand advancing from a supply source mounted on a rotatably driven hollow spindle for rotation therewith is wrapped helically about a core strand moving from a remote source into the ingress end of said spindle and through the bore of said spindle to form a wrapped yarn and wherein the binder strand balloons in its path of advance from its rotating supply to said core strand being wrapped comprising, in combination, the improvement comprising enclosure means for enclosing said balloon in its substantial entirety up to said ingress end of said spindle to isolate said balloon from airborne textile fly or lint while providing an opening for the passage of said core strand to said spindle bore from said remote source.

In an apparatus for manufacturing wrapped yarn wherein a core strand is passed continuously from a remote supply through the bore of a hollow rotatably driven spindle having a free end defining the ingress end of said bore, and a binder strand is delivered from a supply package mounted on said spindle and rotating therewith to the ingress end of said spindle bore to be wrapped around said core strand while traveling through said spindle bore, said binder strand revolving in a ballooning zone extending from the package periphery to the free end of said spindle, in combination, the improvement comprising an enclosure impervious to airborne textile lint or fly confining substantially the entirety of said ballooning zone, said enclosure terminating in the direction of balloon travel at least generally adjacent the free end of said spindle and defining with said free end an annular exit passage for the binder strand, said enclosure termination providing an access opening for the introduction of said core strand to said spindle bore.