AT526683A4 - Round reed - Google Patents

Abstract

Circular reed (2) for a circular weaving machine (1), comprising: an upper reed ring (2a) with an upper reed rod mounting groove (22), a lower reed ring (2b) with a lower reed rod mounting groove (23), the upper (22) and the lower reed rod mounting groove (23) each having a groove base (24), an inner groove inner wall (26) and an outer groove inner wall (26), a plurality of reed rods (2f), upper ends of the reed rods (2f) being received in the upper reed rod mounting groove (22) of the upper reed ring (2b) and lower ends of the reed rods (2f) being received in the lower reed rod mounting groove (23) of the lower reed ring (2b), an upper vibration damping device (27) in the upper reed rod mounting groove (22) of the upper reed ring (2b) and/or a lower Vibration damping device (28) in the lower reed rod mounting groove (23) of the lower reed ring (2b), wherein the upper (27) and/or the lower vibration damping device (28) has an outer vibration damping element (29) resting on the outer groove inner wall (26) and a groove base vibration damping element (30) resting on the groove base (24).

Description

The invention relates to a circular reed for a circular weaving machine, comprising:

an upper reed ring with an upper reed rod mounting groove,

a lower reed ring with a lower reed rod mounting groove, the upper and lower reed rod mounting grooves each having a groove base, an inner groove wall and an outer groove wall,

a plurality of reed bars, wherein upper ends of the reed bars are in the upper reed bar mounting groove of the upper reed ring and lower ends of the reed bars are in the lower reed bar mounting groove of the upper reed ring.

groove of the lower reed ring.

Furthermore, the invention relates to a circular weaving machine, comprising: a main axis, a circular reed and

a shuttle running along the circular reed.

A circular weaving machine with a circular reed is known, for example, from EP 2 829 645 Al or EP 3 662 100.

Circular weaving machines for tubular fabric production have been working at a particularly high noise level since their beginnings, which can be between 95 and over 100 dB. Circular weaving machines were originally operated with a low number of weft insertions, with the shuttles sliding over the rods lined up and fixed in the circular reed. Due to increasing performance requirements, the shuttles sliding over the reed rods were replaced by shuttles rolling on the circular reed because of the high friction and the associated heat development, but also because of the power consumption. With the various systems with shuttles rolling on the circular reed, a compromise had to be made between noise emissions and wear on the shuttle wheels. In order to withstand the high centrifugal forces when the circular weaving machine is in operation, on the one hand the reed rods must be appropriately dimensioned and fixed in the reed, and on the other hand the shuttle wheels must have a suitably dampening but durable plastic coating. This reed-shuttle combination, which is still in use today, corresponds more or less to the

required durability criteria, but still has the great

Halls often exceed 90 dB(A).

In the current state of the art, the reed dents are fixed in the reed rings with hardening adhesives such as epoxy resin. However, this has the disadvantage that it is only possible to replace bent or otherwise damaged reed dents with great effort, as the adhesive has to be chiseled out step by step. During repairs, more than just the damaged part of the reed dents has to be chiseled out of the reed, as the upper reed ring is rigidly connected or glued to the lower reed ring and this is the only way to insert the reed dents into the assembly grooves and then re-insert them.

can be glued.

Another disadvantage of the known design arises during the manufacture of the reed, as both the reed rings and the reed bars must be free of grease and the adhesive must be highly homogeneous and of consistent quality. Since the connection is designed to last a lifetime, there must be no errors in the manufacturing process. All too often, however, the adhesive manufacturer changes the recipe of the adhesive, so that the reed bond must be adapted accordingly in order to

To avoid reed failures.

When using the circular weaving machine to produce fabric bags, mainly made of polypropylene, so-called finishing agents, i.e. soap-based lubricants, are often used, which are often essential for the efficient production of a circular fabric and which can be stripped off as residue from the lower reed ring during the weaving process and loosen the resin bond. A repair

of the reed is, as mentioned, only possible with great effort.

To date, ongoing attempts with dampening, softer and different types of linings on the slinger wheels have either not achieved the desired durability or have only achieved a low level of re-

reduction of noise emissions. If the workers working on the circular looms do not have sufficient

wearing appropriate hearing protection can cause serious health problems.

Against this background, many countries are

However, they were not suitable for practical use.

In contrast, the object of the present invention is to alleviate or eliminate at least some of the disadvantages of the prior art. The invention has the particular aim of creating a circular reed and a circular weaving machine equipped with it, with which the noise emissions during operation can be significantly reduced without changing the proven structure of the circular reed from individual reed rings and spaced-apart

having to give up the reed rods arranged one above the other.

This object is achieved by a circular reed according to claim 1 and a circular weaving machine according to claim 15. Preferred embodiments

forms are specified in the dependent claims.

According to the invention, the round reed has an upper vibration damping device in the upper reed bar mounting groove of the upper reed ring and/or a lower vibration damping device in the lower reed bar mounting groove of the lower reed ring. The upper and/or lower vibration damping device has an outer vibration damping element resting on the outer groove inner wall and a groove base vibration damping element resting on the groove base.

ration damping element.

For the purposes of this disclosure, the location and direction specifications such as “horizontal”, “vertical”, “top”, “bottom” refer to the intended use state of the circular reed as part of a circular weaving machine, with “radial”, “tangential” and “axial” referring to the center of the circular reed or to the main axis of the circular weaving machine, which extends vertically

extends through the center of the circular reed.

The invention is based on the realization that noise emissions

are affected to a considerable extent by vibrations

of the round reed is made considerably easier.

The upper and lower vibration damping devices are preferably each made of at least one elastomer, in particular a visco-elastomer. The elastomer is designed to withstand the necessary working pressure during operation and to dampen the vibrations caused by the plastic-coated slinger wheels rolling over the

Reed bars are created.

In a preferred embodiment, the outer vibration damping element and/or the groove base vibration damping element and/or the inner vibration damping element extend in the

Essentially along the entire circumference of the round reed.

In a preferred embodiment, the groove base vibration damping element extends over the entire radial extension of the upper and lower end faces of the reed dents on the

Groove base of the upper or lower reed ring.

In a preferred embodiment, the round reed further comprises:

an upper clamping bar, preferably made of a metal, in the upper reed dent assembly groove for radially clamping the upper ends of the reed dents, in particular by pressing the upper ends of the reed dents against the outer vibration damping element on the outer groove inner wall of the upper reed ring and/or

a lower clamping bar, preferably made of a metal, in the lower reed bar assembly groove for radially clamping the lower ends of the reed bars, in particular by pressing the lower ends of the reed bars against the outer vibration damping element on the outer groove inner wall of the lower reed ring with the help of the upper or lower clamping bar, the upper or lower ends of the reed bars are pressed against the outer vibration damping element on the outer groove inner wall of the upper or lower reed ring in a preferred embodiment.

A stable design with low noise emissions can be achieved

which the reed dents rest against.

In order to achieve the radial compression of the upper and lower ends of the reed dents, a preferred embodiment provides an upper adjustment device for radial adjustment of the upper tensioning bar and/or a lower adjustment device for radial adjustment of the lower tensioning bar. With the help of the upper and lower adjustment device, the upper and lower tensioning bar can be moved in the radial direction (relative to the center of the reed ring) in order to move the upper and lower ends of the reed dents accordingly in the radial direction.

to press outside.

In a preferred embodiment, the upper and/or lower adjusting device has at least one adjusting screw, preferably a plurality of adjusting screws distributed over the circumference of the upper or lower round reed, for radially displacing the upper or lower tensioning bar. By turning the adjusting screw in one direction, the upper or lower tensioning bar is moved radially outwards, whereas the upper or lower tensioning bar is moved in the other direction by turning the adjusting screw.

moved radially inwards in the opposite direction.

In order to enable the radial adjustment of the upper or lower tensioning bar within the upper or lower reed bar mounting groove, the upper or lower tensioning bar has individual tensioning bar arc segments in a preferred embodiment. The tensioning bar arc segments are preferably curved in a circular arc shape in plan view. The tensioning bar arc segments preferably adjoin one another in such a way that the upper or lower tensioning bar extends essentially along the entire circumference.

the upper and lower reed rings.

71729

that could.

In order to decouple vibrations of the reed dents due to the rotation of the shuttle from the upper or lower reed ring as much as possible, a vibration damping strip, preferably each with a substantially constant wall thickness, is preferably provided as an outer vibration damping element and/or as a groove base vibration damping element and/or as an inner vibration damping element. The vibration damping strips each have an extension that is several times, in particular several times, greater in each direction along their main planes than perpendicular thereto in the direction of their wall thickness. Preferably, the main plane of the outer vibration damping element is substantially parallel to the outer groove inner wall and/or the main plane of the groove base vibration damping element is substantially parallel to the groove base and/or the main plane of the inner vibration damping element is arranged substantially parallel to the inner groove inner wall. In a preferred embodiment, the vibration damping strips forming the inner and outer vibration damping elements and the groove base vibration damping element are essentially U-shaped in a vertical section through the center of the round reed around

the upper and lower ends of the reed rods.

For the precise arrangement of the reed dents between the upper and lower reed rings and for the further reduction of vibrations, the upper and/or lower vibration damping device in a preferred embodiment has a vibration damping intermediate layer between two adjacent upper or between two adjacent lower ends of the reed dents. Further vibration damping intermediate layers are preferably used as vibration damping intermediate layers.

ation strips are provided, the extensions of which in each direction

strength.

To decouple the vibrations caused by the rotating shuttle, the outer vibration damping element and/or the groove base vibration damping element and/or the inner vibration damping element and/or the vibration damping intermediate layer is made of an elastomer, in particular a visco-elastomer, in a preferred embodiment. The elastomer preferably has a Shore A hardness of 70 to 90, preferably 80 to 85. The elastomer is preferably a PUR (polyurethane)

lyurethane) elastomer.

In a preferred embodiment, the inner vibration damping element is made of a first elastomer and the outer vibration damping element is made of a second elastomer, wherein the first elastomer of the inner vibration damping element has a greater Shore A hardness than the second elastomer of the

external vibration damping element.

In a preferred embodiment, the external vibration

vibration damping element and the groove base vibration damping element, preferably also the inner vibration damping element and/or the vibration damping intermediate layers, in one piece, in particular

especially as a single- or multi-component injection-molded part.

In a preferred embodiment, the upper and lower reed rings are held together by spacer rods. The spacer rods are preferably spaced from the outer groove inner wall via the outer vibration damping element and from the groove base via the groove base vibration damping element, and preferably also from the inner groove inner wall via the inner vibration damping element. The spacer rods are each firmly connected to the upper and lower reed rings. The connection of the spacer rods to the upper and lower reed rings is preferably reversed.

sibly solvable.

In a preferred embodiment, a clamping device,

especially with a clamping screw, for axial (vertical)

The clamping device is preferably connected to the spacer rods between

connected between the upper and lower reed rings.

The circular weaving machine according to the invention has a circular reed in one of the embodiments described above. The circular weaving machine is preferably designed to produce a circular fabric.

In a preferred embodiment, the round reed has an upper running surface on which at least one upper roller of the shuttle rolls. Preferably, the round reed also has a lower running surface on which at least one lower roller of the shuttle rolls. The upper running surface can be inclined to the horizontal in accordance with a conical design of the upper roller, with the upper running surface falling inwards in the radial direction. The lower running surface can be inclined to the horizontal in accordance with a conical design of the lower roller, with the lower running surface rising inwards in the radial direction. The upper roller and the lower roller can each be arranged upright so that their axes of rotation run essentially horizontally. The reed dents can have an essentially vertical

Form a running surface on which at least one wheel of the shuttle,

runs vertically.

The invention is explained below using an embodiment

further explained, which is shown in the drawings.

Fig. 1 shows a circular weaving machine with a circular reed according to the state of the art.

Fig. 2 shows a section of a circular weaving machine according to the invention, in which a schematically shown shuttle rotates around a circular reed, in which the upper and lower ends are

surrounded by vibration damping elements.

Fig. 3 shows a detail of the circular weaving machine according to the invention

without web shuttles.

Fig. 4 shows a further detail of the circular weaving machine according to the invention.

machine.

Fig. 5 shows a section of the circular weaving machine according to the invention.

machine, whereby the upper reed ring is not shown.

Fig. 6 shows a section of the circular weaving machine according to the invention corresponding to Fig. 5, wherein the upper groove base

Vibration damping element is not shown.

Fig. 7 shows a section of the circular weaving machine according to the invention corresponding to Fig. 6, wherein vibration damping intermediate layers between the upper ends of the reed dents are not shown.

are provided.

Fig. 8 shows a section of the lower reed ring with the un-

additional vibration damping device.

Fig. 9 shows a detail of the section of Fig. 8.

tion damping device.

In Fig. 1, a circular weaving machine 1 is shown, the basic structure of which has long been known in the prior art (see, for example, EP 3 662 100). The circular weaving machine 1 is intended for the use of ribbons, threads, monofilaments and multifilaments as warp ribbons and weft ribbons. The circular weaving machine 1 has a circular reed 2 which is arranged in a ring around a main axis 2e which runs essentially vertically in the operating position shown. Usually

the main axis 2e along a machine shaft (not shown).

The circular weaving machine 1 has a warp ribbon feed device 3a with a plurality of warp ribbon guide elements 3b, which are designed as length compensation compensators, each of which comprises a spring bar and an eyelet at the upper end of the spring bar for guiding through and deflecting a warp ribbon. The warp ribbon guide elements 3b are distributed around the circular reed 2 of the circular weaving machine 1. For the sake of a better overview, only one feed device 3a is shown in a schematic representation. The circular reed 2 comprises an upper reed ring 2a made of metal (which runs in a circular ring shape when viewed in the direction of the main axis 2e) and a lower reed ring 2b made of metal (which also runs in a circular ring shape when viewed in the direction of the main axis 2e), between which a large number of reed bar segments 2d made of metal are evenly distributed with gaps 2g between adjacent reed bars 2£f£ (see Fig. 2) (only partially shown in Fig. 1 for reasons of clarity). The warp ribbons are guided by warp ribbon spools (not shown) through the warp ribbon guide elements 3b and further through the gaps 2g between the reed bars 2£.

Between the warp tape guide elements 3b and the reed 2, shedding devices are arranged distributed around the reed 2. The shedding devices comprise a plurality of first strands 6 and a plurality of second strands 7, which are connected to one another at their ends and an upper deflection roller 8a

and a lower pulley 8b. Each of the first

second warp ribbon group 11.

In one embodiment, a lever controlled by an eccentric moves the eyelet or heddle tape encircling the stationary deflection rollers up or down (not shown). This gives the two warp ribbon sets 10, 11 an alternating movement up or down in opposite directions, whereby a shed 9 (also called a traveling shed) is opened and closed. In the open state, the shed 9 forms a space defined by the two warp ribbon sets 10, 11, in which a shuttle 12 (only indicated in Fig. 1), which carries a weft ribbon spool (hereinafter referred to as weft spool) 13, moves on a circular path along the round reed 2 and in the process pulls a weft ribbon (not shown) from the weft spool 13 carried by it and inserts it into the shed 9. The shed 9 is closed when the heddles 6, 7 are in a middle position in which the eyelets of the first heddles 6 and the second heddles 7 are at the same height, as a result of which both warp ribbon groups 10, 11 lie in the same area or together span this area. The space of the shed 9 reaches a maximum when the two warp ribbon groups 10, 11 are at the opposite reversal points of their opposing alternating movement, as partially shown in Fig. 1. The so-called shed change begins at these reversal points by reversing the movement imparted to the opposing warp ribbon groups 10, 11. By changing the shed, the weft ribbon last inserted into the shed 9 is fixed in the fabric, and the next weft ribbon can be inserted into the shed by the next shuttle 12. Preferably, an even number of shuttles 12, for example six or eight shuttles 12, rotate at equal distances from one another in the reed 2 (in Fig. 1, only one shuttle 12 is shown for the sake of clarity). This

tubular tissue is folded inwards to form a central

Circumferential direction relative to the main axis 2e.,.

Fig. 2 shows an inventive design of the round reed 2, which has the upper reed ring 2a, the lower reed ring 2b and the reed bars 2f, between which the gaps 2g are formed for the passage of the warp ribbons. The reed bars 2f can be formed from plate parts with a substantially constant wall thickness. The round reed 2 also has an upper running surface 15, on which two upper rollers 16 of the shuttle 12 roll. In addition, the round reed 2 has a lower running surface 17, on which two lower rollers 18 of the shuttle 12 roll. The upper running surface 15 is inclined to the horizontal in accordance with a conical design of the upper rollers 16, with the upper running surface 15 sloping inwards in the radial direction. Accordingly, the lower running surface 17 is inclined to the horizontal in accordance with a conical design of the lower rollers 18, with the lower running surface 17 rising inwards in the radial direction. The upper rollers 16 and the lower rollers 18 are arranged vertically, i.e. their axes of rotation run essentially horizontally. The reed bars 2f also form an essentially vertical running surface 19 on their inner sides, on which a pair of upper wheels 20 and lower wheels 21 of the shuttle 12 are guided. The upper wheels 20 and the lower wheels 21 are arranged horizontally, i.e. their axes of rotation run

essentially vertical.

As can be seen from Fig. 2 and in detail from Fig. 3, the upper reed ring 2a has an upper reed bar mounting groove 22 and the lower reed ring 2b has a lower reed bar mounting groove 23. The upper 22 and the lower reed bar mounting groove 23 each have a preferably substantially horizontally arranged groove base 24, a preferably substantially vertically arranged inner groove inner wall 25 arranged closer to the center of the round reed 2 and a preferably substantially vertically arranged outer groove wall 26 further away from the center of the round reed 2.

groove inner wall 26. The upper ends of the reed dents 2f are in

Mounting groove 23 of the lower reed ring 2b.

As can be seen from Fig. 2 and in detail from Fig. 3, the round reed 2 has an upper vibration damping device 27 in the upper reed bar mounting groove 22 of the upper reed ring 2a and a lower vibration damping device 28 in the lower reed bar mounting groove 23 of the lower reed ring 2b. The upper 27 and the lower vibration damping device 28 are identical and are arranged in mirror image around a horizontal plane.

arranges.

The upper 27 and the lower vibration damping device 28 each have an outer vibration damping element 29 resting on the outer groove inner wall, a groove base vibration damping element 30 resting on the groove base and an inner vibration damping element 31 resting on the inner sides of the lower or upper ends of the reed dents. Vibration damping strips, preferably each with a substantially constant wall thickness, are provided as the outer and inner vibration damping element and as the groove base vibration damping element, which surround the upper or lower ends of the reed dents 2f in a U-shape. By means of the upper 27 or lower vibration damping device 28, the vibrations of the metal reed dents 2f are absorbed by the upper 2a, which is also made of metal.

or lower reed ring 2b is at least partially decoupled.

As can best be seen from Fig. 5, the groove base vibration damping element 30 extends over the entire radial extent of the upper or lower front side of the reed dents 2f at the groove base of the upper 2a (not shown) or lower reed ring 2b. The groove base vibration damping element 30 runs in a circular ring shape in a tangential direction over the entire circumference.

catch of the upper 2a or lower reed ring 2b.

As best seen in Fig. 8 to 10, the upper 27 (not shown) and the lower vibration damping device 28 each have a plurality of vibration damping intermediate layers 32

which are standing between adjacent upper or between

of the reed rods.

In the embodiment shown, the upper 27 (not shown) and lower vibration damping device 28 each have connecting parts 33 which connect the vibration damping intermediate layers 32 to one another. These connecting parts 33 can be mounted in correspondingly shaped recesses on the upper and lower

front sides of the reed bars (not shown).

The upper 27 (not shown) and the lower vibration damping device 28 are made of at least one plastic, in particular

at least one viscoelastic plastic.

As can be seen from Fig. 2, the round reed 2 also has an upper tensioning bar 34, which is arranged on the inside in the upper reed bar mounting groove 22. Accordingly, the round reed has a lower tensioning bar 35, which is arranged in the lower reed bar mounting groove 23. With the help of the upper 34 or lower tensioning bar 35, the upper or lower ends of the reed bars 2f are pressed against the outer vibration damping element 29 on the outer groove inner wall of the upper 2a or lower reed ring 2b. The upper 34 or lower tensioning bar 35 is connected to an upper adjusting device 36 or a lower adjusting device 37. The upper 36 and the lower adjusting device 37 each have a plurality of adjusting screws 38, which are distributed at regular intervals over the circumference of the upper 2a or lower reed ring 2b. By operating the adjusting screws 38, the upper 34 or the lower clamping bar 35 is moved in the radial direction in order to change the contact pressure. The upper 34 and the lower clamping bar 35 are each made up of individual clamping bar arc segments. The longitudinal ends of adjacent clamping bar arc segments

segments overlap each other in the circumferential direction.

In Fig. 9 and Fig. 10 the lower vibration damping device is

shown in detail in Fig. 28. In a preferred embodiment,

or multi-component injection molded part.

As can be seen from Fig. 2, the upper 2a and the lower reed ring 2b are held together by spacer rods 39, which are connected via the outer vibration damping element 29 from the outer groove inner wall and via the groove base vibration damping element 30 from the groove base as well as via the inner vibration damping element 31 from

the inner groove wall.

Reference numbers:

1 circular weaving machine

2 round reed

2a upper reed ring

2b lower reed ring

2d reed rod segment

2nd main axis

2f reed rods

2g gaps

3a Warp tape feeding device 3b Warp tape guide elements 4 Warp tape

5 tangential direction

6 first strands

7 second strands

8a upper pulley

8b lower pulley

9 Weaving compartment

10 first warp ribbon group

11 second warp ribbon group

12 shuttles

13 Weft spool

14 Webring

15 upper running surface

16 upper rollers

17 lower tread

18 lower rollers

19 Running surface on the reed bars 20 Upper wheels

21 lower wheels

22 upper reed rod mounting groove

23 lower reed rod mounting groove

24 Groove base

25 inner groove wall

26 outer groove inner wall

27 upper vibration damping device 28 lower vibration damping device 29 outer vibration damping element

30 Groove base vibration damping element

18 inner vibration damping element vibration damping intermediate layers connecting parts upper clamping bar lower clamping bar upper adjustment device lower adjustment device adjustment screws

Spacer bars

Claims (15)

Expectations: 1. Circular reed (2) for a circular weaving machine (1), comprising: an upper reed ring (2a) with an upper reed rod mounting groove (22), a lower reed ring (2b) with a lower reed rod mounting groove (23), the upper (22) and the lower reed rod mounting groove (23) each having a groove base (24), an inner groove wall (25) and an outer groove wall (26), a plurality of reed bars (2£f), wherein upper ends of the reed bars (2£f£) are received in the upper reed bar mounting groove (22) of the upper reed ring (2a) and lower ends of the reed bars (2f) are received in the lower reed bar mounting groove (23) of the lower reed ring (2b), marked by an upper vibration damping device (27) in the upper reed rod mounting groove (22) of the upper reed ring (2a) and/or a lower vibration damping device (28) in the lower reed rod mounting groove (23) of the lower reed ring (2b), wherein the upper (27) and/or the lower vibration damping device (28) comprises an outer vibration damping element (29) resting on the outer groove inner wall (26) and a groove base vibration damping element resting on the groove base (24) (30). 2. Round reed (2) according to claim 1, characterized in that the upper (27) and/or the lower vibration damping device (28) comprises an inner vibration damping element resting on the inner sides of the lower or upper ends of the reed dents (2£). ment (31). 3. Round reed (2) according to claim 1 or 2, characterized by an upper clamping bar (35) in the upper reed bar mounting groove (22) for radially clamping the upper ends of the reed bars (2£), in particular by pressing the upper ends of the reed bars (2£f£) against the outer vibration damping element (29) on the outer groove inner wall (26) of the upper reed ring (2a), and/or a lower tension bar (36) in the lower reed rod assembly groove (23) for radial clamping of the lower ends of the 4. Round reed (2) according to claim 3, characterized by an upper adjustment device (37) for radial adjustment of the upper clamping bar (35) and/or a lower adjustment device (37) for radial adjustment the lower clamping bar (36). 5. Round reed (2) according to claim 4, characterized in that the upper and/or lower adjusting device (37) comprises an adjusting screw for radial displacement of the upper (35) or lower further clamping bar (36). 6. Round reed (2) according to one of claims 3 to 5, characterized in that the upper (35) and/or the lower tensioning bar (36) has individual clamping bar arc segments. 7. Round reed (2) according to claim 6, characterized in that the longitudinal ends of adjacent tensioning strip arc segments are arranged overlapping in the circumferential direction. 8. Round reed (2) according to one of claims 1 to 7, characterized in that as an outer vibration damping element (29) and/or as a groove base vibration damping element (30) and/or as an inner vibration damping element (31) in each case a vibration on damping strips are provided. 9. Round reed (2) according to one of claims 1 to 8, characterized in that the groove base vibration damping element (30) is located over the entire radial extension of the upper or lower end face of the reed bars (2f) on the groove base (24) of the upper (2a) or lower reed ring (2b). 10. Round reed (2) according to one of claims 1 to 9, characterized in that the upper (27) and/or the lower vibration damping device (28) each have a vibration damping intermediate scheduling (32) between two adjacent upper or between two adjacent lower ends of the reed dents (2f). 11. Round reed (2) according to one of claims 1 to 10, characterized in that the outer vibration damping element (29) and/or the groove base vibration damping element (30) and/or the inner vibration damping element (31) and/or the vibration damping intermediate layer (32) are made of an elastomer, in particular made of a visco-elastomer. 12. Round reed (2) according to claim 11, characterized in that the inner vibration damping element (31) is made of a first elastomer and the outer vibration damping element (29) is made of a second elastomer, wherein the first elastomer of the inner vibration damping element (31) has a greater Shore A hardness than the second elastomer of the outer vibration damping element (29). elements (29). 13. Round reed (2) according to one of claims 1 to 12, characterized in that the outer vibration damping element (29) and the groove base vibration damping element, preferably also the inner vibration damping element (31) and/or the vibration damping intermediate layers (32), are made in one piece, in particular as Single or multi-component injection molded parts. 14. Round reed (2) according to one of claims 1 to 13, characterized in that the upper (2a) and the lower reed ring (2b) are held together by spacer rods (39) which are separated from the outer groove inner wall (26) via the outer vibration damping element (29) and from the groove bottom (24) via the groove base vibration damping element (30), preferably also from the inner groove inner wall (25) via the inner vibration damping element (31). are standing. 15. Circular weaving machine (1), comprising: a main axis (2e), a circular reed (2) according to one of claims 1 to 14, a shuttle (12) rotating along the circular reed (2).