Yarn delivery device for a twisting or cabling machine

Abstract

Yarn delivery device for a twisting or cabling machine having a first deflection roller for deflecting a yarn; a driven godet, arranged downstream of first deflection roller in yarn transport direction; a separator roller, arranged relative to the godet such that a yarn can be laid several times around the separator roller and the godet, said yarn being wrapped around separator roller and godet jointly; and a pitch lever, having a second deflection roller arranged downstream of godet in the yarn transport direction, for deflecting the yarn again. A cantilever, having a third deflection roller, which, in the yarn transport direction, is arranged downstream of second deflection roller and upstream of traversing yarn guide for feeding the yarn onto a take-up package, second deflection roller being arranged on a different side of a vertical plane extending through axis of rotation of the separator roller from the third deflection.

Claims

1. A yarn delivery device for a twisting or cabling machine, for feeding a yarn via a traversing yarn guide to a take-up package, the yarn delivery device comprising: a first deflection roller for deflecting a yarn, a driven godet, which is arranged downstream of the first deflection roller in the yarn transport direction, a separator roller, which is arranged relative to the godet in such a way that a yarn can be laid several times around the separator roller and the godet, said yarn being wrapped around the separator roller and the godet jointly, and a pitch lever, which has a second deflection roller arranged downstream of the godet in the yarn transport direction, for deflecting the yarn again, characterised by a cantilever, which has a third deflection roller, which, in the yarn transport direction, is arranged downstream of the second deflection roller and upstream of the traversing yarn guide for feeding the yarn onto a take-up package, the second deflection roller being arranged on a different side of a vertical plane extending through the axis of rotation of the separator roller than the third deflection roller in order to receive the yarn from the separator roller or the godet and to deflect the yarn toward the third deflection roller.

2. The yarn delivery device according to claim 1, characterised in that the pitch lever, the cantilever, or a combination thereof is arranged on a housing of the yarn delivery device.

3. The yarn delivery device according to claim 1, characterised in that the second deflection roller and the third deflection roller are arranged on the same side of a horizontal plane extending through the axis of rotation of the separator roller.

4. The yarn delivery device according to claim 3, characterised in that the free end of the pitch lever, on which free end the second deflection roller is mounted, is arranged above the godet in the region of the yarn delivery device.

5. The yarn delivery device according to claim 1, characterised in that the second deflection roller is arranged on a different side of a horizontal plane extending through the axis of rotation of the separator roller from the third deflection roller.

6. The yarn delivery device according to claim 5, characterised in that the free end of the pitch lever, on which free end the second deflection roller is mounted, protrudes below the yarn delivery device.

7. A workstation of a twisting or cabling machine, for winding a yarn via a traversing yarn guide onto a take-up package, the workstation having a yarn delivery device, which comprises a first deflection roller for deflecting a yarn, a driven godet, which is arranged downstream of the first deflection roller in the yarn transport direction, a separator roller, which is arranged relative to the godet in such a way that a yarn can be laid several times around the separator roller and the godet, said yarn being wrapped around the separator roller and the godet jointly, and a pitch lever, which has a second deflection roller arranged downstream of the godet in the yarn transport direction, for deflecting the yarn again, characterised in that the yarn delivery device comprises: a cantilever, which has a third deflection roller, which, in the yarn transport direction, is arranged downstream of the second deflection roller and upstream of the traversing yarn guide for feeding the yarn onto a take-up package, and the second deflection roller being arranged on a different side of a vertical plane extending through the axis of rotation of the separator roller than the third deflection roller in order to receive the yarn from the separator roller or the godet and to deflect the yarn toward the third deflection roller.

8. A twisting or cabling machine having a plurality of workstations for winding a yarn via a traversing yarn guide onto a take-up package, the workstations having a yarn delivery device, which comprises a first deflection roller for deflecting a yarn, a driven godet, which is arranged downstream of the first deflection roller in the yarn transport direction, a separator roller, which is arranged relative to the godet in such a way that a yarn can be laid several times around the separator roller and the godet, said yarn being wrapped around the separator roller and the godet jointly, and a pitch lever, which has a second deflection roller arranged downstream of the godet in the yarn transport direction, for deflecting the yarn again, characterised in that at least one workstation has the yarn delivery device wherein the yarn delivery device comprises: a cantilever, which has a third deflection roller, which, in the yarn transport direction, is arranged downstream of the second deflection roller and upstream of the traversing yarn guide for feeding the yarn onto a take-up package, and the second deflection roller being arranged on a different side of a vertical plane extending through the axis of rotation of the separator roller than the third deflection roller in order to receive the yarn from the separator roller or the godet and to deflect the yarn toward the third deflection roller.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) Further features and advantages of the invention are evident from the following description of preferred embodiment examples of the invention, on the basis of the figures and drawings illustrating details essential to the invention, and from the claims. The individual features can be implemented individually or in any desired combination in a preferred embodiment of the invention.

(2) Preferred embodiment examples of the invention are explained in more detail below on the basis of the enclosed drawings.

(3) FIG. 1 shows a front view of a twisting or cabling machine, the workstations of which are equipped with the yarn delivery devices according to the invention;

(4) FIG. 2 shows a view of an embodiment of the yarn delivery device according to the invention with the yarn path shown;

(5) FIG. 3 shows a side view of the embodiment of the yarn delivery device according to the invention shown in FIG. 2, with an alternative yarn path;

(6) FIG. 4 shows a view of a further embodiment of the yarn delivery device according to the invention with the yarn path shown.

DESCRIPTION OF THE PREFERRED EMBODIMENTS

(7) The following description of the embodiments of the present invention is merely exemplary in nature and is in no way intended to limit the invention, its application, or uses. The following description is provided herein solely by way of example for purposes of providing an enabling disclosure of the invention, but does not limit the scope or substance of the invention.

(8) FIG. 1 shows a front view of a twisting or cabling machine 1. Such textile machines each have a plurality of identical workstations 2 in the region of the machine longitudinal sides of such textile machines.

(9) Such textile machines also generally have a drive and operating unit 6 arranged at a machine end, in which drive and operating unit 6 for example the necessary energy apparatuses, various drives and a central control device 7 are installed.

(10) In the embodiment example, the twisting or cabling machine 1 also has a package transport system, the schematically illustrated delivery point of which is labelled with reference number 8.

(11) As is known, the workstations 2 of twisting or cabling machines 1 with outer yarn feeding each have a creel 3, which serves to hold at least one first feed package 4, from which what is referred to as an outer yarn is drawn.

(12) Such workstations 2 also each have a cabling spindle driven by a spindle drive (for better clarity, this is not shown in greater detail in the figures of the present application). Such a spindle drive can be a motor that directly drives the cabling spindle or can be an indirect drive, for example a belt drive.

(13) As usual, the cabling spindle, which in the embodiment example of FIG. 1 is arranged behind a movably mounted protection wall 5, additionally bears, on a stationary spindle pot bottom arranged on the cabling spindle, a second feed package, from which what is referred to as an inner yarn is drawn off from above, which inner yarn is fed above the cabling spindle to a cord regulator or balloon yarn guide (not shown).

(14) The outer yarn is drawn from the first feed package 4, which is stored in the creel 3, and is first fed to a yarn-tension influencing device 9, by means of which the yarn tension of the outer yarn can be varied or set.

(15) The outer yarn subsequently circles around the cabling spindle, a free yarn balloon thus being formed. The cord regulator or balloon yarn guide, in which the outer yarn drawn from the first feed package 4 and the inner yarn drawn from the second feed package are brought together, determines the height of the free yarn balloon that is formed. The cabling point, at which the outer yarn and the inner yarn merge, is located in this apparatus, which also referred to as a balancing system.

(16) The yarn delivery device 10, by means of which the twisted or cabled yarn is drawn off and fed via a pitch lever 11 to a winding device 12, is arranged above the cabling point.

(17) As usual, the winding device 12 has a drive roller 13 and a traversing yarn guide 14. By means of the traversing yarn guide 14, the yarn is wound onto a take-up package 16, which is frictionally driven by the drive roller 13 and is held in a package cradle 15.

(18) FIG. 2 schematically shows an embodiment of the yarn delivery device 10 according to the invention in which the second deflection roller 20 and the third deflection roller 21 are arranged on different sides of a horizontal plane extending through the axis of rotation of the separator roller 19. The yarn, coming from below in the yarn running direction F, runs across the rotatably mounted first deflection roller 17, is deflected approximately by 90 and runs onto the godet 18. The yarn is guided around the godet 18 and the separator roller 19 in several turns in order subsequently to be guided from the separator roller 19 via the second deflection roller 20, which is rotatably mounted at the free end of the pitch lever 11, which is arranged behind the godet 18, to a third deflection roller 21. The third deflection roller 21 is rotatably mounted on a cantilever 22, which is arranged on the yarn delivery device 10 so as to lie in front of the yarn delivery device 10. From the third deflection roller 21, the yarn runs at a defined and constant angle of inclination into the traversing yarn guide 14, which winds the yarn onto the take-up package 16 with oscillating movements.

(19) FIG. 3 shows the same embodiment as FIG. 2 in a side view, only one part of the yarn path being different. Likewise in this variant, the yarn is fed across the first deflection roller 17, several times across the godet 18 and the separator roller 19, and from the separator roller 19 to the pitch lever 11 or rather to the second deflection roller 20 arranged on the pitch lever 11. However, the yarn is guided around the second deflection roller 20 from the front, and not from the rear as shown in FIG. 2, to the third deflection roller 21, the yarn path thus having a crossing point in the side view.

(20) FIG. 4 shows a side view of an alternative embodiment of the yarn delivery device 10 according to the invention. In the installed state of the yarn delivery device 10, the pitch lever 11 is arranged behind the godet 18, but the free end of the pitch lever 11 on which the second deflection roller 20 is mounted is arranged upward toward the take-up package 16. This means that the second deflection roller 20 and the third deflection roller 21 are arranged on the same side of a horizontal axis extending through the axis of rotation of the separator roller 19. Via the first deflection roller 17, the yarn is guided several times around the driven godet 18 and the passive separator roller 19, in order to be fed from the separator roller 19 via the second deflection roller 20 and further via the third deflection roller 21 to the traversing yarn guide 14.

LIST OF REFERENCE NUMBERS

(21) 1 Twisting or cabling machine 2 Workstations 3 Creel 4 First feed package 5 Protection wall 6 Drive and operating unit 7 Control device 8 Package transport system 9 Yarn-tension influencing device 10 Yarn delivery device 11 Pitch lever 12 Winding device 13 Drive roller 14 Traversing yarn guide 15 Package cradle 16 Take-up package 17 First deflection roller 18 Godet 19 Separator roller 20 Second deflection roller 21 Third deflection roller 22 Cantilever

(22) It will therefore be readily understood by those persons skilled in the art that the present invention is susceptible of broad utility and application. Many embodiments and adaptations of the present invention other than those herein described, as well as many variations, modifications and equivalent arrangements, will be apparent from or reasonably suggested by the present invention and the foregoing description thereof, without departing from the substance or scope of the present invention. Accordingly, while the present invention has been described herein in detail in relation to its preferred embodiment, it is to be understood that this disclosure is only illustrative and exemplary of the present invention and is made merely for purposes of providing a full and enabling disclosure of the invention. The foregoing disclosure is not intended or to be construed to limit the present invention or otherwise to exclude any such other embodiments, adaptations, variations, modifications and equivalent arrangements.