US 4,505,436 AGranted

Yarn winding apparatus

AssigneeBarmag Barmer Maschinenfabrik AG

InventorsHeinz Schippers, Erich Lenk, Herbert Turk, Herbert Schiminski

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Abstract

A yarn winding apparatus is disclosed which is characterized by the ability to wind a plurality of running yarns onto a corresponding number of bobbins mounted on a common support spindle, and wherein the bobbins may be closely spaced apart to thereby permit the required length of the support spindle to be minimized. The apparatus comprises a plurality of side by side traversing assemblies extending along the length of the support spindle, with each traversing assembly comprising a yarn guide bar and a pair of oppositely rotating rotors. The rotors include arms which define two closely adjacent planes of rotation, and the two rotors of each assembly are mounted for rotation about offset axes and so that the arms sweep across the guide bar in opposite directions to define the traverse stroke. The rotors of adjacent traversing assemblies are mounted so that the planes of rotation of the arms of the two rotors are respectively coincident, with the circles defined by the rotating arms in each plane overlapping each other. Also, the corresponding axes of adjacent traversing assemblies are offset in opposite directions.

Claims39

Dependent claims

A winding apparatus for winding a plurality of running yarns to form a corresponding number of yarn packages, and comprising bobbin support means for mounting a plurality of tubular bobbins in a coaxial arrangement, and yarn traverse means for reciprocating the running yarns along respective aligned traverse strokes and so as to form a wound yarn package on each bobbin, the improvement wherein said yarn traverse means comprises a plurality of traversing assemblies disposed in a closely spaced apart arrangement extending along said bobbin support means so as to permit the bobbins to be disposed closely adjacent to each other on said support means, with each traversing assembly being adapted to reciprocate a running yarn onto a rotating bobbin mounted on said support means, and with each traversing assembly comprising

(a) a yarn guide bar mounted to extend in a direction generally parallel to the axis of said bobbin support means,
(b) a first rotor having at least two coplanar radial arms and mounted for rotation about a first axis such that the extremities of the rotating arms pass along said yarn guide and define a first plane,
(c) a second rotor having at least two coplanar radial arms and mounted for rotation about a second axis such that the extremities of the rotating arms pass along said yarn guide and define a second plane, and with said first axis being parallel to and offset from said second axis in a direction generally parallel to the axis of said bobbin support means, and with the first and second planes being parallel to and closely adjacent each other,
said traversing assemblies being mounted adjacent to each other such that each traversing assembly has its first axis offset from its second axis in a direction which is opposite to the direction of offset in each immediately adjacent traversing assembly, and such that said first and second planes of said assemblies are respectively coincident, and further such that the extremities of the rotor arms of adjacent traversing assemblies define circles upon rotation thereof which overlap in at least one of said first and second planes, and
drive means for rotating the rotors of each traversing assembly in opposite directions with respect to each other, and for rotating the rotors of adjacent traversing assemblies such that the first rotors thereof rotate in opposite directions with respect to each other and the second rotors thereof rotate in opposite directions with respect to each other.

2 more elements

(a) a yarn guide bar mounted to extend in a direction generally parallel to the axis of said bobbin support means,
(b) a first rotor having at least two coplanar radial arms and mounted for rotation about a first axis such that the extremities of the rotating arms pass along said yarn guide and define a first plane,
(c) a second rotor having at least two coplanar radial arms and mounted for rotation about a second axis such that the extremities of the rotating arms pass along said yarn guide and define a second plane, and with said first axis being parallel to and offset from said second axis in a direction generally parallel to the axis of said bobbin support means, and with the first and second planes being parallel to and closely adjacent each other,
said traversing assemblies being mounted adjacent to each other such that said first and second planes of said assemblies are respectively coincident, and further such that the extremities of the rotor arms of adjacent traversing assemblies define circles upon rotation thereof which overlap in said first and second planes, and
drive means for rotating the rotors of each traversing assembly in opposite directions with respect to each other, and for rotating the rotors of adjacent traversing assemblies such that the first rotors thereof rotate in opposite directions with respect to each other and the second rotors thereof rotate in opposite directions with respect to each other, so that the rotor arms of adjacent traversing assemblies which are in a common plane move through the overlapping area in the manner of meshing gear wheels but without contact.

2 more elements

Dependencies are inferred from the claim text.