TRAVERSING THREAD GUIDE

Abstract

The invention relates to a traversing thread guide for causing a thread to traverse at a workstation of a textile machine that produces cross-wound packages, comprising a base carrier, which can be arranged on a traversing rod, and a thread-guiding element, which is arranged on the base carrier and which has two wall portions, which are arranged at a distance from each other and delimit a thread insertion slot and a thread-guiding channel.

Claims

1. A traversing thread guide (1) for causing a thread (24) to traverse at a workstation of a textile machine that produces cross-wound packages, comprising: a base carrier (4), configured to be arranged on a traversing rod (21); and a thread-guiding element (3), arranged on the base carrier (4), comprising two wall portions (7, 8), which are arranged at a distance from each other and are configured to delimit a thread insertion slot (2) and a thread-guiding channel (5), wherein each of the wall portions (7, 8) comprises, on its top facing away from a base surface (16) of the thread-guiding element (3), a support surface (9) formed by a plane.

2. The traversing thread guide (1) according to claim 1, wherein the support surfaces (9) are arranged in a common plane.

3. The traversing thread guide (1) according to claim 1, wherein the support surfaces (9) are oriented parallel to the base surface (16).

4. The traversing thread guide (1) according to claim 1, wherein the support surfaces (9) are inclined relative to each other and/or toward an end face (13) of the thread-guiding element (3).

5. The traversing thread guide (1) claim 1, wherein the planes of the support surfaces (9) intersect at an angle of more than 140°.

6. The traversing thread guide (1) according to claim 1, wherein tops of the wall portions (7, 8) are rounded in a region of their inner edges (20), front edges (10), side edges (15), secondary edges (19) and/or rear edges (11).

7. The traversing thread guide (1) according to claim 1, wherein the wall portions (7, 8) each comprise, in a region between the support surfaces (9) and a side surface (12), a lateral transition portion (18) which drops toward the side surface (12).

8. The traversing thread guide (1) according to claim 1, wherein the wall portions (7, 8) have, in a region between an end face (13) and a side surface (12), front transition portions (17) which taper the thread-guiding element (3) toward the end face (13).

9. The traversing thread guide (1) according to claim 1, wherein the thread-guiding element (3) is detachably connected to the base carrier (4).

10. The traversing thread guide (1) according claim 1, wherein rear edges (11) and the inner edges (20) of the wall portions (7, 8) are connected to each other in a rounded manner.

11. The traversing thread guide (1) according to claim 1, wherein tops of the wall portions (7, 8) comprise, in a region between a rear edge (11) and the support surface (9), a rear transition portion (14) inclined toward the base surface (16).

12. The traversing thread guide (1) according to claim 1, wherein an end face (13) of the thread-guiding element (3) is positioned at an angle of 75° to 90° to the base surface (16).

13. The traversing thread guide (1) according to claim 1, wherein an end face (13) of the thread-guiding element (3) is positioned at an angle of 80° to the base surface (16).

14. The traversing thread guide (1) according to claim 1, wherein the planes of the support surfaces (9) intersect at an angle of more than 160°.

15. The traversing thread guide (1) according to claim 1, wherein the planes of the support surfaces (9) intersect at an angle of 175° to 195°.

Description

[0025] An embodiment example of the invention is explained below with reference to the drawings. In the drawings:

[0026] FIG. 1 shows a schematic front view of a workstation of a textile machine that produces cross-wound packages, in the region of the cross-wound package;

[0027] FIG. 2 shows a perspective view of a traversing thread guide, comprising a base carrier and a thread-guiding element;

[0028] FIG. 3 shows a top view of the traversing thread guide of FIG. 2; and

[0029] FIG. 4 shows a front view of the traversing thread guide of FIG. 2.

[0030] FIG. 1 shows a schematic illustration of a workstation of a textile machine that produces cross-wound packages, in the region of the cross-wound package 22. Such textile machines generally have a plurality of workstations of the same type arranged next to each other in a row, in each of which a thread 24 is wound on a cross-wound package 22. In the case of a twisting device (not shown), the thread 24 is transported toward the cross-wound package 22 and is wound on the cross-wound package 22. On the way to the cross-wound package 22, the thread 24 passes through different units, such as a thread sensor (not shown here), before the thread 24 runs onto the cross-wound package 22, which is rotated by frictional engagement by means of a package drive roller 23. The thread 24 running onto the cross-wound package 22 is made to traverse by a traversing thread guide 1, which can be moved along a longitudinal axis of a traversing rod 21, and said thread 24 runs onto the cross-wound package 22 in crossing windings.

[0031] The traversing thread guide 1 comprises a thread-guiding element 3, which is made of a ceramic material, and a base carrier 4, which is connected to the thread-guiding element 3 and by means of which the traversing thread guide 1 is detachably fastened to the traversing rod 21.

[0032] The thread-guiding element 3 is arranged at the front end of the base carrier 4, with respect to the thread running direction F, and comprises two wall portions 7, 8, which are connected to a base surface 16 and are spaced apart from the base surface 16 in some parts in order to form a thread-guiding portion. The wall portions 7, 8 are arranged at a distance from each other perpendicularly to the thread running direction F so that inner edges 20 of the wall portions 7, 8, which inner edges 20 extend in the thread running direction F and are adjacent to each other, form a thread insertion slot 2, which is adjoined, toward the base surface 16, by a thread-guiding channel 5 through which the thread 24 extends as the thread 24 is being wound on to the cross-wound package 22, the thread 24 lying on the opposite sides of the thread-guiding channel 5 in alternation during the travel movement of the traversing thread guide 1 along the traversing rod 21.

[0033] In the region of their tops, which, when the traversing thread guide 1 is in its installation position on the traversing rod 21, face the cross-wound package 22, the wall portions 7, 8 each have a support surface 9, which is formed by a plane; in the embodiment example shown, the support surfaces 9 are arranged in a common plane.

[0034] The support surfaces 9 do not run parallel to the base surface 16 of the thread-guiding element 3, but rather have an inclined orientation; the support surfaces 9 drop from their rear edges 11 to the front end faces 13 running transversely to the thread running direction F.

[0035] The wall portions 7, 8 also have a lateral transition portion 18, which extends between the support surface 9 and the side surface 12 extending parallel to the thread running direction F. A front transition portion 17 on the wall portions 7, 8 connects the end faces 13 to the side surfaces 12. The front transition portions 17 are inclined from the side surfaces 12 toward the thread-guiding channel 5, such that the thread-guiding element 3 is tapered in the thread running direction F. In the rear region opposite from the end faces 13, the wall portions 7, 8 each have a rear transition portion 14 inclined toward the base surface 16 relative to the support surfaces 9.

[0036] The rear edges 11 delimiting the rear transition portions 14 against the thread running direction F are rounded, as are the side edges 15 in the transition region between the lateral transition portion 18 and the side surface 12, the secondary edge 19 in the transition region between the lateral transition portion 18 and the front transition portion 17, and the front edge 10 in the transition region between the support surface 9 and the end face 13. The mutually adjacent inner edges 20 of the wall portions 7, 8 in the region of the thread insertion slot 2 are likewise rounded.

[0037] The thread-guiding element 3 produced from a ceramic material is connected to the base carrier 4, which for fastening to the traversing rod 21, has a fastening opening 6 for receiving suitable fastening means.

TABLE-US-00001 List of reference signs 1 Traversing thread guide 2 Thread insertion slot 3 Thread-guiding element 4 Base carrier 5 Thread-guiding channel 6 Fastening opening 7 Wall portion 8 Wall portion 9 Support surface 10 Front edge 11 Rear edge 12 Side surface 13 End face 14 Rear transition portion 15 Side edge 16 Base surface 17 Front transition portion 18 Lateral transition portion 19 Secondary edge 20 Inner edge 21 Traversing rod 22 Cross-wound package 23 Package drive roller 24 Thread F Thread running direction