Work station of a textile machine, pneumatic thread storage element for a work station of a textile machine and a textile machine

Abstract

A work station of a textile machine includes a plurality of fiber-guiding work elements that are divided into at least two groups. A first work station part is defined at the work station on which a first group of the fiber-guiding work elements is arranged. A second work station part is defined at the work station on which a second group of the fiber-guiding work elements is arranged. The second work station part is arranged in a movable manner relative to the first work station part at the work station or is arranged in a removable manner at the work station. A pneumatic thread storage element is also provided for a work station of a textile machine for the temporary receiving of a thread, and includes a multi-part structure with a first thread storage section and a second thread storage section connected to one another at a separation point.

Claims

1. A work station of a textile machine, comprising: a plurality of fiber-guiding work elements that handle or process fibers in the form of fiber material or thread; a first work station part on which a first group of the plurality of fiber-guiding work elements is arranged; a second work station part on which a second group of the plurality of fiber-guiding work elements is arranged; and wherein the second work station part is arranged at the first work station part in a movable manner relative to the first work station part.

2. The work station of a textile machine according to claim 1, wherein the second work station part is arranged in a pivotable manner at the first work station part.

3. The work station of a textile machine according to claim 2, wherein the first group of fiber-guiding work elements comprises a winding roller arranged by a bracket at the first work station part, the second work station part pivotally mounted to the bracket.

4. The work station of a textile machine according to claim 1, wherein the first work station part comprises a first carrier element on which at least one or more of the first group of fiber-guiding work elements are arranged.

5. The work station of a textile machine according to claim 4, wherein the second work station part comprises a second carrier element on which at least one or more of the second group of fiber-guiding work elements are arranged.

6. The work station of a textile machine according to claim 1, further comprising a plurality of thread-producing work elements arranged at the first work station part.

7. The work station of a textile machine according to claim 1, wherein the plurality of fiber-guiding work elements comprises a pneumatic thread storage element for the temporary receiving of a thread, the pneumatic thread storage element comprising a multi-part structure with a first thread storage section and a second thread storage section connected to one another at a separation point.

8. The work station of a textile machine according to claim 7, wherein the first thread storage section is arranged at the first work station part and the second thread storage section is arranged at the second work station part.

9. A textile machine comprising at least one work station according to claim 1.

10. A pneumatic thread storage element for a work station of a textile machine for the temporary receiving of a thread, comprising a multi-part structure with a first thread storage section and a second thread storage section, the first thread storage section connected to the second thread storage section at a separation point.

11. The thread storage element according to claim 10, wherein the first thread storage section and the second thread storage section are connected in a pivotable manner at the separation point.

12. The thread storage element according to claim 10, wherein the first thread storage section is also detachable from the second thread storage section at the separation point.

13. The thread storage element according to claim 10, wherein one of the first thread storage section or the second thread storage section comprises an extension at an end turned towards the other respective thread storage section, or wherein one of the first thread storage section or the second thread storage section comprises a reduction at an end turned towards the other respective thread storage section.

14. A textile machine with at least one work station comprising a thread storage element in accordance with claim 10.

15. The work station of a textile machine according to claim 1, wherein the second work station part is arranged in a removable manner at the first work station part.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) Additional advantages of the invention are described on the basis of the following presented embodiments. The following is shown:

(2) FIG. 1 is a schematic sectional view of a work station of a textile machine;

(3) FIG. 2 is a section from the schematic sectional view of FIG. 1, whereas a work station part is pivoted;

(4) FIG. 3 is a detail view of a thread storage element with a first thread storage section and a second thread storage section;

(5) FIG. 4 is a schematic view of a thread storage element with a first thread storage section and a second thread storage section according to an alternative design; and

(6) FIG. 5 is a schematic sectional view of a work station of a textile machine with a pivoted, second work station part in an additional design.

DETAILED DESCRIPTION

(7) Reference will now be made to embodiments of the invention, one or more examples of which are shown in the drawings. Each embodiment is provided by way of explanation of the invention, and not as a limitation of the invention. For example features illustrated or described as part of one embodiment can be combined with another embodiment to yield still another embodiment. It is intended that the present invention include these and other modifications and variations to the embodiments described herein.

(8) In the following descriptions of the figures, the same reference signs are used for characteristics that are identical and/or at least comparable in their arrangement and/or mode of operation. For the sake of clarity, not all characteristics are shown and indicated in all of the figures. Likewise, some characteristics are not described in all of the figures, but are explained merely by way of example on one of the figures. If characteristics described in the figures are not explained in detail in the accompanying description, their arrangement and/or modes of operation correspond to the arrangement and/or mode of operation of the characteristics described in the other figures.

(9) FIG. 1 shows a work station 2 of a textile machine 1 in a schematic, sectioned side view. A multiple number of fiber-guiding work elements 5, 6, 7, 8, 10, 11, 12, 14, 17, 23, 24 is arranged at the work station 2; by means of such elements, a thread 9 is produced if necessary and, after its production, can be fed to a winding device 20.

(10) The present textile machine 1 is formed as a rotor spinning machine, which features a multiple number of work stations 2 next to one another in one arrangement. In a manner known per se, a fiber material 4 is fed to the work stations 2 from a storage container 3 by way of a feed device 5, which in the present case comprises a feed roller 6 along with an opening device 7. From there, the fiber material 4, which has been separated into its individual fibers, is fed to a spinning element 8, which in the present case is formed as a spinning rotor and in which the fiber material 4 is spun into the thread 9. The produced thread 9 is then drawn off by means of a draw-off device 10 and, through a series of additional fiber-guiding work elements 11, 12, 14, 17, 23, 24, is then fed to the winding device 20 with the winding roller 14 and the cross-wound bobbin 15, on which it is wound by means of a traversing device 23, which is only schematically indicated here. The traversing device 23 includes a traversing thread guide, symbolically presented here, along with a traversing drive (not shown). In the present case, the draw-off device 10, a yarn monitoring device 12, a device for thread tension compensation 13, and with a waxing device 11 are provided as additional fiber-guiding work elements. Likewise, the feed device 5, the feed roller 6, the opening device 7, the spinning element 8, the winding roller 14 and the traversing device 23 form the fiber-guiding work elements 5, 6, 7, 8, 10, 11, 12, 14, 17, 23, 24. However, this enumeration of the fiber-guiding work elements is only to be understood as exemplary. Likewise, additional fiber-guiding work elements 5, 6, 7, 8, 10, 11, 12, 14, 17, 23, 24 or other fiber-guiding work elements 5, 6, 7, 8, 10, 11, 12, 14, 17, 23, 24 could be provided. The yarn monitoring device 12 can also be formed differently, and may contain a thread monitor in the simplest manner or may additionally feature a yarn cleaning device.

(11) Of course, the illustrated design of the textile machine 1 as a rotor spinning machine is only to be understood as exemplary. Likewise, the textile machine could be formed as an air spinning machine, whereas the feed device 5 then includes a drafting unit with delivery rollers, and the spinning element is formed as an air spinning nozzle. Furthermore, the textile machine could also be formed as a ring spinning machine, another spinning machine, or a winding machine. The thread 9 does not necessarily have to be wound on a cross-wound bobbin; rather, it could also be wound onto a yarn cop.

(12) Furthermore, on the textile machine 1 presented here, a negative pressure channel 16 can be seen, which extends in the longitudinal direction of the textile machine 1 along the work stations 2 and to which the individual work stations 2 of the textile machine 1 are connected. In the present case, the negative spinning pressure, which is required for rotor spinning, is also provided by the negative pressure channel 16. With other types of spinning machines and textile machines 1, no negative pressure is required for the spinning process itself or the work process itself. However, as a rule, a multiple number of work elements are present at the work stations 2 of textile machines 1; such elements require negative pressure.

(13) The work station 2 features a two-part structure with a first work station part 2a and a second work station part 2b. This results in a particularly advantageous structure of a work station 2, which enables a pre-assembly of fiber-guiding work elements 5, 6, 7, 8, 10, 11, 12, 14, 17, 23, 24 at the first work station part 2a and at the second work station part 2b. For this purpose, the fiber-guiding work elements 5, 6, 7, 8, 10, 11, 12, 14, 17, 23, 24 are divided into at least two groups. As such, the two work station parts 2a and 2b can be almost completely pre-assembled in a particularly favorable manner and, in a simple manner, are fastened as a pre-assembly circumference to a frame section 21 of the textile machine 1, which is assigned to the respective work station and in the present case is presented only symbolically.

(14) In the present case, the winding roller 7, the feed roller 6, the spinning element 8 and, if applicable, thread-producing work elements (not shown here) are arranged at the first work station part 2a as fiber-guiding work elements, in particular thread-producing work elements, as in the present case, of a rotor spinning machine. In addition, in the present case, the winding roller 14 is arranged at the first work station part 2a. The specified work elements together form the first group of the fiber-guiding work elements. On the other hand, at the second work station part 2b, all of the fiber-guiding work elements that follow the thread-producing work elements (here, including in particular the draw-off device 10) are at least a part of the thread storage element 17, the yarn monitoring device 12, the waxing device 11, and the traversing device 23. Together, they form the second group of the fiber-guiding work elements. Of course, this is also to be understood as only exemplary; here, additional or other fiber-guiding work elements may also be provided, for example a suction nozzle 24 arranged at the work station (see FIGS. 2 and 5).

(15) In the present case, the first work station part 2a includes a first carrier element 27, on which the first group of the fiber-guiding work elements is arranged. In the present case, the second work station part 2b includes a second carrier element 28 for the second group of the fiber-guiding work elements, which, in a particularly advantageous manner, thereby can be pre-assembled at it in the correct positioning. Here, in the present case, the second work station part 2b is arranged in a pivotable manner at the first work station part 2a, and as such can be pivoted away for assembly and cleaning purposes in a simple manner.

(16) In the present case, the second work station part 2b is arranged in a pivotable manner around a pivot axis 29 on a bracket 25, on which the winding roller 14 is also supported at the same time. Here, in the present case, the second work station part 2b can be pivoted around the rotational axis 26 of the winding roller 14, such that the rotational axis 26 and the pivot axis 29 are identical. Of course, the rotational axis 26 and the pivot axis 29 can also be provided spatially separated from each other.

(17) Furthermore, the work station 2 features a pneumatic thread storage element 17, by means of which a thread can be fixed in a manner known per se for different working steps, and a certain thread quantity can be stored temporarily. This storage element 17 also forms a fiber-guiding work element. The loop-shaping sucking in of a thread piece into the thread storage element 17 is indicated here by a dashed line. For example, by means of such pneumatic thread storage elements 17, the thread tension can be kept constant during certain working steps or, for example, a certain thread length can be temporarily stored and released again during the piecing process. In the present case, the thread storage element 17 is formed as a thread storage tube. Since it is often the case that relatively large thread quantities have to be stored temporarily, which quantities have to be released again rapidly and reliably, such thread storage elements 17 often feature comparatively large dimensions, which makes their installation in the textile machine 1 along with the assembly of the various work elements at the work station 2 more difficult. Likewise, the accessibility of the thread storage element 17 for cleaning purposes is often made more difficult. The thread storage element 17 features a two-part structure with a first thread storage section 17a and a second thread storage section 17b, which are connected to one another at a separation point 18, as will be explained in more detail below.

(18) Similar to FIG. 1, FIG. 2 shows a schematic sectional view of a work station of a textile machine with a first work station part 2a and a pivotable, second work station part 2b. Likewise, the thread storage element 17 is structured in two parts. The first thread storage section 17a is arranged at the first work station part 2a and the second thread storage section 17b is arranged at the second work station part 2b. If the second work station part 2b is then pivoted away from the first work station part 2a, for example, for assembly and cleaning purposes, the pneumatic thread storage element 17 is then separated at the separation point 18. In contrast to FIG. 1, in the present case, the work station 2 also features a suction nozzle 24 arranged in a stationary manner at the work station 2, in the present case at the second work station part 2b. In the present case, the suction nozzle 24 thus belongs to the second group of fiber-guiding work elements.

(19) Through the formation of the thread storage element 17 with a first thread storage section 17a and a second thread storage section 17b, a cohesive thread storage element 17 is nevertheless achieved in a simple manner. Herein, upon the assembly of the second work station part 2b at the frame section 21 of the textile machine 1 or, if applicable, at the first work station part 2a, the second thread storage section 17b is also automatically positioned correctly with respect to the first thread storage section 17a.

(20) FIG. 2 also shows that, according to an advantageous design of the work station 2, the second work station part 2b can be arranged not only in a pivotable manner, but also in a removable manner at the work station 2. For this purpose, as shown in the present case, the carrier element 28 or, if there is no common carrier element 28, another bracket of the work station part 2b, can only be inserted into the bracket 25 and, if applicable, fixed to the work station by means of a fastening element (not shown here). Likewise, the carrier element 28 or another bracket could feature a hook-shaped hanging bracket or the like (not shown), by means of which it can be suspended at the work station 2.

(21) In order to facilitate the joining of the two thread storage sections 17a, 17b at the separation point 18, it is advantageous if at least one of the two thread storage sections 17a, 17b has an extension 19 on its end turned towards the other thread storage section 17a, 17b. This is illustrated in FIG. 3. In the present case, the thread storage section 17b features a funnel-shaped extension 19 on its end turned towards the thread storage section 17a. This ensures that, despite the pivoting movement, the two thread storage sections 17a, 17b can be reliably combined. Alternatively or in addition, it would of course also be possible for the other thread storage section, in this case the thread storage section 17a, to feature a corresponding reduction 22 (see also FIG. 4) at its end turned towards the thread storage section 17b. Of course, the reduction 22 or the extension 19 could also be arranged at the other thread storage section 17a, 17b respectively.

(22) FIG. 4 shows another design of a work station 2 with a first work station part 2a and a second work station part 2b, whereas, however, the second work station part 2b is movable in a linear manner relative to the first work station part 2a, as symbolized by the arrows. In the present case, the second thread storage section 17b features a reduction 22, which enables a telescopic interlocking of the two thread storage sections 17a, 17b.

(23) Finally, FIG. 5 shows another design of a work station 2 with a first work station part 2a and a second work station part 2b, with which, however, the first work station part 2a does not feature a first carrier element 27; rather, the fiber-guiding work elements of the first group are respectively arranged at the work station 2, individually or grouped together in smaller groups. In the present case, for example, the winding roller 14 is fastened to the work station 2 by means of its bracket 25, and the second work station part 2b is also fastened, in a pivotable and/or removable manner, to the work station 2, likewise by means of the bracket 25. On the other hand, the first thread storage section 17a is fastened individually to the work station 2 or here to the frame section 21. The thread-producing work elements 5, 6, 7, 8 are combined into a spinning box and thus fastened together to the frame section 21.

(24) The invention is not limited to the illustrated embodiments. For example, it is not absolutely necessary for both thread storage sections 17a, 17b to be completely detached from one another at the separation point 18. Depending on the design of the two work station parts 2a, 2b, it would also be conceivable that the first thread storage section 17a and the second thread storage section 17b can only be moved relative to one another, but remain at least loosely connected or connected to each other by means of a swivel joint. In addition, both the work station 2 and the thread storage element 17 could feature not only a two-part structure, but also a multi-part structure. Likewise, numerous modifications are possible with respect to the designs and arrangements of the fiber-guiding and thread-producing work elements that are shown. The same applies to the arrangement of the individual work elements 5, 6, 7, 8, 10, 11, 12, 14, 17, 23, 24, which could also be fastened to a multiple number of first carrier elements 27 or a multiple number of second carrier elements 28 or could also be fastened to one another at least partially without carrier elements 27, 28 or, at least in the case of the first work station part 2a, also individually and directly at the frame section 21.

(25) Additional variations and combinations within the framework of the claims also fall under the invention.

LIST OF REFERENCE SIGNS

(26) 1 Textile machine

(27) 2 Work station 2a First work station part 2b Second work station part

(28) 3 Storage container

(29) 4 Fiber material

(30) 5 Feed device

(31) 6 Feed roller

(32) 7 Opening device

(33) 8 Spinning element

(34) 9 Thread

(35) 10 Draw-off device

(36) 11 Waxing device

(37) 12 Yarn monitoring device

(38) 13 Device for thread tension compensation

(39) 14 Winding roller

(40) 15 Cross-wound bobbin

(41) 16 Negative pressure channel

(42) 17 Pneumatic thread storage element 17a First thread storage section 17b Second thread storage section

(43) 18 Separation point

(44) 19 Extension

(45) 20 Winding device

(46) 21 Frame section

(47) 22 Reduction

(48) 23 Traversing device

(49) 24 Suction nozzle

(50) 25 Bracket

(51) 26 Rotational axis

(52) 27 First carrier element

(53) 28 Second carrier element

(54) 29 Pivot axis