Winding machines

• US 4,112,662 A
• Filed: 04/26/1977
• Issued: 09/12/1978
• Est. Priority Date: 09/19/1975
• Status: Expired due to Term

• Current Assignee: Platt Saco Lowell Corporation
• Original Assignee: Platt Saco Lowell Corporation
• Inventors: Yates, Stephen William, Lappage, James, Doggett, Neil
• Primary Examiner(s): McCarthy, Edward J.
• Application Number:
  US05/790,877
• Time in Patent Office: 504 Days
• Field of Search: 242/54.4, 242/25 A, 242/18 A, 57/34 AT, 57/77.4, 57/51.6
• US Class Current: 57/293
• CPC Class Codes: B65H 2701/31 Textiles threads or artificial strands of filaments
• CPC Class Codes: B65H 54/02 Winding and traversing material on to reels, bobbins, tubes, or like package cores or formers

Abstract

Apparatus is disclosed for winding an elongate fibrous material, such as a sliver or roving, comprising: package tube mounting means to support first and second package tubes in winding positions in transversely spaced parallel relationship; a material delivery arm for delivering material first to one of the package tubes to form a first package and then to the other of the package tubes to form a second package; drive means for rotating the package tubes for winding on material; the delivery arm being arranged during the building of a package to contact the package at a winding-on point which lies in a plane containing the axes of rotation of the two package tubes and to deliver material at the winding-on point direct to the package under a winding tension localized in the region of the winding-on point by the delivery arm; first traversing means for causing relative traversing movement between each package tube and the delivery arm in the direction of the axis of rotation of the tube for building a parallel-build package on the tube and second traversing means operative during the building of each package to cause in a direction perpendicular to the axis of rotation of the tubes a relative displacement between the delivery arm and the package tube to accommodate the increasing diameter of the package being built on the tube and to maintain the winding-on point in the plane containing the axes of rotation.

Claims

1. Apparatus for winding an elongate fibrous material comprising:

package tube mounting means to support first and second package tubes in winding positions in transversely spaced parallel relationship;

a material delivery arm for delivering material first to one of the package tubes to form a first package and then to the other of the package tubes to form a second package;

drive means for rotating the package tubes for winding on material;

said delivery arm being arranged during the building of a package to contact the package at a winding-on point which lies in a plane containing the axes of rotation of the two package tubes and to deliver material at the winding-on point direct to said package under a winding tension localised in the region of the winding-on point by the delivery arm;

first traversing means for causing relative traversing movement between each package tube and the delivery arm in the direction of the axis of rotation of the tube for building a parallel-build package on the tube means for supporting the delivery arm, and second traversing means operative during the building of each package to monitor the increasing diameter of the package and to cause in a direction perpendicular to the axis of rotation of the tubes a relative displacement between the supporting means and the package tube to accommodate the increasing diameter of the package being built on the tube and to maintain the winding-on point in said plane.

2. Apparatus for winding an elongate fibrous material comprising:

package tube mounting means to support first and second package tubes in winding positions in transversely spaced parallel relationship;

a material delivery arm for delivering material first to one of the package tubes to form a first package and then to the other of the package tubes to form a second package;

drive means for rotating the package tubes for winding on material;

said delivery arm being arranged during the building of a package to contact the package at a winding-on point which lies in a plane containing the axes of rotation of the two package tubes and to deliver material at the winding-on point direct to said package under a winding tension localised in the region of the winding-on point by the delivery arm;

first traversing means for causing relative traversing movement between each package tube and the delivery arm in the direction of the axis of rotation of the tube for building a parallel-build package on the tube and second traversing means operative during the building of each package to cause in a direction perpendicular to the axis of rotation of the tubes a relative displacement between the delivery arm and the package tube to accommodate the increasing diameter of the package being built on the tube and to maintain the winding-on point in said plane, the second traversing means being responsive to completion of a package on one of the tubes to cause further relative displacement between the delivery arm and the package tubes to bring the delivery arm to bear against the other package tube to effect transfer to the said other package tube of the material delivered by the delivery arm.

3. Apparatus according to claim 2, wherein the delivery arm is pivotally suspended from arm support means and said relative displacement between the delivery arm and the two package tubes during the build of each package is such as to maintain the delivery arm in a substantially vertical disposition throughout the build of a package on each tube.

4. Apparatus according to claim 3, wherein the arm support means is arranged during said further relative displacement to move beyond the position in which the delivery arm is vertical and contacts the said other package tube, thereby to incline the arm and cause it to bear against the periphery of the tube.

5. Apparatus according to claim 4, wherein the dispositions of the package tube mounting means are such that the delivery arm at the completion of a package on one of the tubes almost contacts the surface of the other package tube.

6. Apparatus according to claim 2, wherein the delivery arm is of generally cylindrical form and the material is guided to said winding-on point in a plurality of turns round said cylindrical portion.

7. Apparatus according to claim 6, wherein the delivery arm is symmetrical with respect to a plane passing through the longitudinal axis of the arm and includes an end portion adapted to deliver the material from one side thereof on one side of said plane to wind material on to one of the package tubes and to deliver the said material from the other side thereof on the other side of said plane for winding material on to the other package tube.

8. A textile machine for converting sliver to roving comprising sliver supply means arranged to provide two slivers for forwarding, means for drafting the forwarded slivers, twisting means for subjecting at least one of the drafted slivers to twisting, converging means for converging the two slivers to form a two-fold roving, and a winding device for winding the roving, said winding device comprising package tube mounting means to support first and second package tubes in winding positions in transversely spaced parallel relationship, a delivery arm for delivering the roving first to one of the package tubes to form a first package and then to the other of the package tubes to form a second package, drive means for rotating the package tubes to wind on the roving, said delivery arm being arranged during the building of each package to contact the package at a winding-on point which lies in a plane containing the axes of rotation of the two package tubes and to deliver the roving at the winding-on point direct to said package under a winding tension localised in the region of the winding-on point by the delivery arm, first traversing means for causing relative traversing movement between each package tube and the delivery arm in the direction of the axis of rotation of the tube for building a parallel-build package on the tube, and second traversing means operative during the building of each package to cause in a direction perpendicular to the axis of rotation of the tubes a relative displacement between the delivery arm and the package tube to accommodate the increasing diameter of the package being built on the tube and to maintain the winding-on point in said plane.

9. A machine according to claim 8, wherein said twisting means applies to at least one of the drafted slivers a twist such that the twisted sliver has repeated along the length alternating zones of opposite twist.

10. A machine according to claim 9, wherein the twisted sliver in converging with the other sliver to form the said two-fold roving is arranged partly to untwist around the other sliver to form a stabilised self-twisted two-fold roving.