WO2023139045A1

WO2023139045A1 - Method for producing a braided fabric on a conductor assembly

Info

Publication number: WO2023139045A1
Application number: PCT/EP2023/050946
Authority: WO
Inventors: Peter Khu
Original assignee: Peter Khu
Priority date: 2022-01-19
Filing date: 2023-01-17
Publication date: 2023-07-27
Also published as: AT525659A4; AT525659B1

Abstract

The aim of the invention is to facilitate undoing a braided fabric on a conductor assembly. This aim is achieved in that a braided fabric (1) having a first density is produced on a first axial portion (40) of the conductor assembly (2), and a braided fabric (1) having a second density is produced on a second axial portion (41) of the conductor assembly (2), wherein the second density of the braided fabric (1) is lower than the first density of the braided fabric (1), and the first axial portion (40) and the second axial portion (41) alternate several times along the conductor assembly (2).

Description

Process for producing a braid on a line assembly

The invention relates to a method for producing a braid on a line arrangement. The invention also relates to a line arrangement with such a braid.

Shielded electrical cables essentially consist of a line arrangement that has one or more electrical conductors and is surrounded by a cable shield. Conductors in the line arrangement can also be stranded. The cable shield usually consists of a mesh made of an electrically conductive material. Braiding machines are known for producing a cable shield from a braid. A braiding machine essentially works in such a way that a cable is fed through the braiding machine at a certain feed rate. Arranged in the braiding machine are a number of bobbins with threads wound thereon, which are guided circumferentially around the cable in the opposite circumferential direction, thread being unwound and braided on the cable to form a braid. In this case, coils can also be moved relative to the circumferential direction in order to produce a desired braided pattern. A very dense braid is required for a shield on a cable.

Such braiding machines are known from WO 2003/064747 A1, EP 441 604, EP 2 405 045 A1, GB 217 635 A or WO 2020/035412 A1.

To connect shielded cables, it is necessary to separate the braided cable shield over a certain axial length in order to make the line arrangement accessible for electrical contacting. The unraveling of the mesh is very cumbersome and requires a great deal of work, particularly in the case of long axial lengths to be unraveled. This is often done manually, which takes a lot of time and is a tedious work process. Reliable mechanical separating is difficult or impossible, especially in the case of long axial lengths to be separated.

It is an object of the present invention to specify a line arrangement with a braid, on which the unraveling of the braid is facilitated.

This and other objects are achieved according to the invention with the features of the independent claims.

According to the invention, the braiding is produced with a first density in a first axial section and with a second density in a second axial section, which is reduced compared to the first density. The lower density in the second axial section allows the braiding to be separated more easily in the area of the second section, and thus easier further processing of the line arrangement. This also allows the production of Long length duct assembly when the first axial portion and the second axial portion alternate on the duct assembly. The first axial section and the second axial section alternate several times along the line arrangement. The line arrangement can then be cut to length in each case in the area of a second axial section, preferably in the area of the center of the second axial section, and the braiding can be separated more easily at the ends in the area of the second braiding. In particular, mechanical separation can also be possible.

The first braid is produced in the braiding machine by the line arrangement being moved through the braiding machine at a first feed speed during a first period of the braiding process, while the number of weft threads rotate around the machine axis at a first weft thread circumferential speed in the weft thread direction of rotation and the number of warp threads rotate at a first warp thread circumferential speed in the warp thread direction of rotation. A mesh with a desired first density can be produced by selecting or specifying the feed speed, the weft thread peripheral speed and the warp thread peripheral speed.

The second braid is preferably produced by increasing the feed speed of the line arrangement to a second feed speed compared to the first feed speed during a second period of the braiding process while the first weft thread peripheral speed and/or the first warp thread peripheral speed remains the same. This enables a particularly simple conversion of the braiding process, because only the feed speed has to be changed.

Alternatively, the second mesh can be produced by reducing the weft peripheral speed and/or the warp peripheral speed to a second weft peripheral speed and/or second warp peripheral speed or by setting it to zero during the second period of time while the feed speed remains the same compared to the first weft peripheral speed and/or first warp peripheral speed. In this variant, too, only one parameter, namely at least one peripheral speed of the threads, has to be adjusted. This also enables a very simple changeover of the braiding process. The peripheral speed of the weft thread and the peripheral speed of the warp thread are preferably reduced or set to zero.

In a further alternative, the second braid is produced by changing the feed speed of the line arrangement compared to the first feed speed and the weft thread peripheral speed during the second period of time and/or warp thread circumferential speed is changed, preferably reduced or set to zero, compared to the first weft thread circumferential speed and/or first warp thread circumferential speed to a second weft thread circumferential speed and/or second warp thread circumferential speed. This variant is more complex because both the feed speed and at least one peripheral speed have to be changed in order to produce the desired lower density of the mesh. On the other hand, this allows the greatest flexibility in producing a braid with a desired density. The peripheral speed of the weft thread and the peripheral speed of the warp thread are preferably changed, preferably reduced or set to zero.

In a particularly advantageous embodiment, a braid with a third density is produced on a third axial section of the line arrangement, which lies between the first section and the second section, the third density of the braid being higher than the first density of the braid. Due to the higher density braiding between the first section and the second section, the line arrangement can be cut to length in the area of the second section, with the adjoining third braiding preventing the braiding from separating by itself beyond the second section. This allows simpler and safer further processing of line arrangements that have been cut to length.

In an advantageous embodiment, the third braid is produced by reducing the feed rate of the line arrangement to a third feed rate compared to the first feed rate during a third period of time of the braiding process, with the weft thread peripheral speed and warp thread peripheral speed remaining the same. This enables a particularly simple conversion of the braiding process, because only the feed speed has to be changed.

Alternatively, the third mesh can be produced by increasing the peripheral weft thread speed and/or peripheral warp thread speed to a third peripheral weft thread speed and/or third peripheral warp thread speed during a third period of the braiding process, with the feed rate remaining the same as in the previous period compared to the first peripheral weft thread speed and/or first peripheral warp thread speed. In this variant, too, only one parameter, namely at least one peripheral speed of the threads, has to be adjusted. This also enables a very simple changeover of the braiding process. The peripheral speed of the weft thread and the peripheral speed of the warp thread are preferably increased. In a further alternative, the third braid is produced by changing the feed speed of the line arrangement compared to the first feed speed during a third period of the braiding process and changing the weft thread circumferential speed and/or warp thread circumferential speed to a third weft thread circumferential speed and/or third warp thread circumferential speed compared to the first weft thread circumferential speed and/or first warp thread circumferential speed, preferably increased. This variant is more complex because both the feed speed and at least one peripheral speed must be changed in order to produce the desired higher density of the mesh. On the other hand, this allows the greatest flexibility in producing a braid with a desired density. The peripheral speed of the weft thread and the peripheral speed of the warp thread are preferably changed, preferably increased.

The present invention is explained in more detail below with reference to FIGS. 1 to 4, which show advantageous configurations of the invention by way of example, schematically and not restrictively. while showing

1 shows an embodiment of a braiding machine,

2 shows the braiding machine of FIG. 1 in a sectional view along the line II-II, FIG. 3 shows a braid according to the invention on a line arrangement, and FIG. 4 shows a further embodiment of a braid according to the invention on a line arrangement.

For reasons of clarity, FIGS. 1 and 2 each show only part of an embodiment of a braiding machine 35 for producing a braid 1 that surrounds a line arrangement 2 . The line arrangement 2 can be, for example, a cable core that is covered with a braided sheath made of threads, preferably made of electrically conductive material, such as a metal (such as copper or aluminum). The braid 1 preferably functions as a shield for the line arrangement 2. Materials which can be used to produce the braid 1 and which can be unwound are referred to herein generally as “filament”, regardless of the material. The design of the line arrangement 2 is irrelevant to the invention and can, for example, be designed as a single conductor, as an arrangement of several wires (where a wire is a solid conductor), as a conductor with several wires (where a wire consists of insulated conductors), as a stranded conductor (where a conductor consists of a plurality of strands), etc. A twisting of several conductors or strands in the conductor arrangement 2 is also fundamentally known and conceivable. A sheathing of a conductor can also be provided in the line arrangement 2, for example in the form of a wrapping with a thin electrically conductive foil. Electrical insulation, separating layers, reinforcements, protective layers and/or filling elements can also be provided in the line arrangement 2 .

The line arrangement 2 surrounded by the braiding 1 is usually further processed into an electrical cable, for example by further layers being arranged around the line arrangement 2 surrounded by the braiding 1 . For example, electrical insulation can be extruded on.

In a braiding machine 35, the line arrangement 2 is guided through the braiding machine 35 in the feed direction 36 (FIG. 2) along a machine axis 4 at a feed speed vv and can, for example, be unwound from a roll (not shown), as is known in the art. In braiding machine 35, at least one weft thread spool 8, usually a plurality of weft thread spools 8, rotates with a weft thread 11 wound on it at a weft thread peripheral speed ws in a weft thread direction of rotation 26 in the circumferential direction around the machine axis 4, and thus also around the line arrangement 2. The wound weft thread 11 is unwound from the at least one weft thread spool 8 and, to produce the braid 1, forms a braiding point 10 on the line arrangement led. Furthermore, at least one warp thread spool 6 with a warp thread 9 wound thereon is provided in the braiding machine 35, which rotates in the circumferential direction around the machine axis 4 in a warp thread rotary direction 3 opposite to the weft thread rotary direction 26 at a warp thread peripheral speed CÜK. The wound warp thread 9 is unwound from the at least one warp thread bobbin 6 and guided to the braiding point 10 on the line arrangement 2 to produce the braid 1 . At least one thread, usually a warp thread 9, can also be moved relative to the circumferential direction, for example up and down. At least two threads, namely at least one weft thread and at least one warp thread, come together at a braiding point 10 and cross over at the braiding point 10 .

The threads are only referred to as warp threads and weft threads in the description so that they can be better distinguished, without wanting to express any kind of restriction.

However, the specific design of the braiding machine 35 is irrelevant to the invention. Without restricting the generality and only for better understanding, an embodiment of a braiding machine 35, which is the subject of the application WO 2020/035412 A1, is described below with reference to FIGS.

In this embodiment, a warp thread frame 5 rotates along a warp thread direction of rotation 3 with warp thread circumferential speed CÜK in the circumferential direction about the machine axis 4. A number (at least one) of warp thread bobbins 6 are arranged on the warp thread frame 5. On A warp thread 9 is wound up on a warp thread spool 6 and is unwound from the respective warp thread spool 6 during operation of the braiding machine 35 and guided to a braiding point 10 on the line arrangement 2 via a laying device 12 . The laying device 12 can be designed, for example, as a lever construction known per se, with a deflection point 22 for the warp thread 9 (e.g. a rotatably mounted roller) being moved back and forth between at least a lower position 22' (Fig. 2) and an upper position 22" (Fig. 2) depending on the angle of rotation of the warp thread frame 5. However, an embodiment of the braiding machine 35 without a laying device 12 is also possible. The warp thread 9 can also be repositioned differently by means of the laying device 12 and can make different movements in the process. Generally speaking, the warp thread 9 can be moved with the laying device 12 relative to the warp thread bobbin 6 from which the warp thread 9 is unwound. The warp thread bobbin 6, the laying device 12 and the deflection point 22 are shown only schematically in FIGS. 1 and 2, since they are known per se to those skilled in the art.

A spool carrier 7 rotates along a weft thread direction of rotation 26 at a weft thread peripheral speed ws in the circumferential direction about the machine axis 4 , the weft thread direction of rotation 26 being opposite to the warp thread direction of rotation 3 . A number (at least one) of weft thread bobbins 8 are arranged on the bobbin carrier 7 . A weft thread 11 is wound onto a weft thread spool 8 and is unwound from the respective weft thread spool 6 during operation of the braiding machine 35 and is guided to the braiding point 10 on the line arrangement 2 , preferably via a guide device 20 .

In this embodiment, a roller carrier plate 18 is arranged in the center of the braiding machine 35 and rotates with the warp thread frame 5 or forms part of the warp thread frame 5 . Between the number of weft thread bobbins 6 and the machine axis 4 , a roller rim protruding upward and made up of a large number of guide rollers 17 is arranged on the roller carrier plate 18 . The coil carrier 7 is supported on the guide rollers 17 via a guide surface 16 in the radial direction and is guided in the circumferential direction. The guide rollers 17 therefore absorb the centrifugal forces acting on the coil carrier 7 during operation of the braiding machine 35 .

If required, a number of radially aligned radial slots 23 can be provided on the roller carrier plate 18, through which warp threads 9 can be guided in the various layers.

In the illustrated embodiment of the braiding machine 35 , a coil carrier support 13 is provided on the warp thread frame 5 or on the roller carrier plate 18 , which also rotates with the warp thread frame 5 or the roller carrier plate 18 . The coil carrier support 13 can, if required, have a plurality of vertical slits 24 through which the warp threads 9 can be passed in the various layers.

In the embodiment shown, a bearing surface 25 is provided on the bobbin carrier support 13 and a sliding surface 29 is provided on the bobbin carrier 7. The bobbin carrier 7 rests with the sliding surface 29 on the opposite bearing surface 25 of the bobbin carrier support 13 up to a specific weft thread peripheral speed ws and slides off it. As a result of the centrifugal force acting during operation, the bobbin carrier 7 is lifted off the support surface 25 from a specific circumferential speed ws of the weft thread. Thus, the sliding surface 29 of the bobbin carrier 7 only rests on the bearing surface 25 when the braiding machine 35 is at a standstill and slides off it only for a short time when the machine is starting up. The bearing force of the coil carrier 7 on the bearing surface 25 of the coil carrier bearing 13 is then reduced to zero, so that any sliding friction is prevented. The wear and tear in the braiding machine 35 can thus be significantly reduced.

In the braiding machine 35 drives for the rotation of the warp thread frame 5 and the bobbin carrier 7 are provided. A drive for a laying device 12 can also be provided.

A spool carrier drive 15 can be, for example, a known arrangement of gears which mesh with teeth provided on the spool carrier 7 . Gears of the bobbin carrier drive 15 can be arranged on the warp thread frame 5 or the weft thread frame 18 and rotate with them, or they can be arranged on a separate unit from the warp thread frame 5 or weft thread frame 18 . The gears of the bobbin carrier drive 15 drive the bobbin carrier 7 with the number of weft thread bobbins 8 in a weft thread turning direction 26 opposite to the warp thread turning direction 3 .

The bobbin carriers 7 rotate in a weft thread rotation direction 26 opposite to the warp thread rotation direction 3, the course of the bobbin thread 11 in relation to a co-rotating coordinate system with the bobbin carrier 7 (which can be defined as the centrifugal direction y, the direction of movement x and the vertical direction z) remaining essentially unchanged, or in another embodiment it can also be variable. In one embodiment, the bobbin thread 11 can run below the upper position of the warp thread 9 and above the lower position of the warp thread 9 . The braided sheathing 10 is formed at the braiding point 10 by the warp thread 9 being laid alternately above and below the weft thread 11 rotating past in the opposite direction via the laying device 12 . Depending on the number of warp threads 9 and weft threads 11, there are also a number of braiding points 10. Usually the number of warp threads 9 in the braiding machine 35 corresponds to the number of spool threads 11. If necessary, several threads can also be fed to the braiding point 10 from a single warp thread spool 6 and/or weft thread spool 8 at the same time.

However, alternating above and below the weft thread 11 does not necessarily mean that the laying device 12 changes the position of the warp thread 9 after each weft thread 11 of each weft thread bobbin 8 . Of course, the laying device 12 could change the position of the warp thread 9, for example, after every second or every fourth weft thread spool 8 rotating past. This essentially depends on the desired predetermined braiding pattern. Corresponding braiding patterns and methods for their manufacture are known in the art.

The weft thread peripheral speed ws, the warp thread peripheral speed CÜK and, if applicable, the times and the speed of the repositioning of the at least one warp thread 9 by means of the laying device 12 (if present) are coordinated and synchronized in a known manner, so that the threads do not get tangled and the desired braiding pattern is generated.

Even if only the course of a single warp thread 9 and a single weft thread 11 is shown in FIGS. A plurality of braiding points 10 are usually provided distributed over the circumference of the line arrangement 2, with at least one warp thread 9 and at least one weft thread 11 usually being braided at each braiding point 10.

A tension measuring unit which measures the tension acting on the weft thread 11 can also be provided on the bobbin carrier 7 . The clamping measuring unit is integrated in the guide device 20, for example. A control unit 30 can be arranged on the bobbin carrier 7, which evaluates the signals from the tension measuring unit and, according to known control algorithms, creates a braking signal for a bobbin brake 21 in order to keep the tension of the weft thread 11 within a set range. A thread breakage can also be easily detected via the control unit 30 if the tension suddenly drops to zero.

Of course, a tension measuring unit and a regulation of the warp thread tension could also be implemented for the warp thread(s) 9 in an analogous manner, with a separate depiction in the figures not being shown for reasons of clarity.

However, the specific design of the braiding machine 35 is unimportant for the present invention. The invention is based on the fact that the density of the braid 1 produced on the line arrangement 2 with the braiding machine 35 is varied, as explained with reference to FIG. The density of the mesh 1 results from the combination of the feed speed vv (which is not zero), the weft thread peripheral speed ws and the warp thread peripheral speed w _K . The number of braiding points 10 can also influence the density.

The density of the braid 1 can be understood as the amount (e.g. length or mass) of braid material (number of weft yarns 11 and number of warp yarns 9) in the braid 1 per unit length, for example per millimeter or centimetre. The density of the braid 1 is also reflected in the steepness of the threads (the number of weft threads 11 and the number of warp threads 9) in the braid 1 in relation to the longitudinal axis of the line arrangement 2 (which coincides with the machine axis 4 in the braiding machine 35). The steeper the threads, i.e. the closer the threads approach a normal to the longitudinal axis of the line arrangement 2, the denser the braid 1. The density of the braid 1 at a specific point or a specific length section of the line arrangement 2 is therefore dependent on the steepness of the threads in relation to the longitudinal axis of the line arrangement 2 at this specific point or this specific length section of the line arrangement 2.

The steepness, related to the longitudinal axis of the line arrangement 2, of the number of weft threads 11 and the number of warp threads 9 at a specific point or a specific length section of the line arrangement 2 is a measure of the density of the braid 1 at this specific point or this specific length section of the line arrangement 2.

The steepness of the threads depends primarily on the weft thread peripheral speed ws and the warp thread peripheral speed CÜK at a given feed speed vv. The steepness increases the higher the weft thread peripheral speed ws and the warp thread peripheral speed CÜK. If the feed speed vv is changed, the weft thread circumferential speed ws and the warp thread circumferential speed CÜK are also adjusted accordingly, i.e. either reduced or increased, for a constant steepness.

According to the invention, there is a first axial section 40 of the braid 1 on the line arrangement 2, which was produced with a number of braiding points 10 with a first advance speed vv and a first weft thread peripheral speed ws and first warp thread peripheral speed CÜK. On a second axial section 41 of the braid 1, with the same number of braiding points 10, the feed speed vv and/or the circumferential speed of the weft thread ws and/or the warp thread peripheral speed WK changes, so that a less dense braid 1 is generated. It can be seen in Figure 3 that the threads are arranged less steeply in section 41 than in section 40, which means that there is also less braiding material per length unit in section 41 than in section 40. The less dense braiding 1 allows the braiding 1 to be separated more easily than along the first axial section 40 with the more dense braiding in section 40. Preferably, the first axial sections 40 and second axial sections alternate Sections 41 on the line arrangement 2 from.

During a first period of time of the braiding process with a specific number of braiding points 10, the line arrangement 2 is moved through the braiding machine 35 at a predetermined first advance speed vvi. The number of weft threads 11 rotates at a predetermined first circumferential weft thread speed wsi in the weft thread direction of rotation 26 and the number of warp threads 9 rotates at a predetermined first warp thread circumferential speed CÜKI in the warp thread direction of rotation 3 (opposite to the weft thread direction of rotation 26) around the machine axis 4. The mesh 1 is thus produced with a specific density in the first axial section 40.

The following procedure can be used to produce the less dense braiding 1 in the second axial section 41:

During a second time period of the braiding process (which can follow the first time period), either the feed speed vv of the line arrangement 2 is increased to a second feed speed vv2 compared to the first feed speed vvi, with the first weft thread peripheral speed wsi and the first warp thread peripheral speed CÜKI remaining the same. Alternatively, the weft thread circumferential speed ws and/or the warp thread circumferential speed CÜK is reduced to a second weft thread circumferential speed ws2 and/or the first warp thread circumferential speed CÜK2 or set to zero while the second feed speed vv2 remains the same or is increased compared to the first feed speed vvi compared to the first weft thread circumferential speed wsi and first warp thread circumferential speed CÜKI. Both variants can also be used simultaneously. Basically, in the second period of time, a second feed speed vv2 that is lower than the first feed speed vvi would even be conceivable if this is compensated for by a correspondingly lower second weft thread peripheral speed ws2 and second warp thread peripheral speed CÜK2, resulting in a less dense braid 1 overall.

If a laying device 12 is provided, the point in time or the frequency of the repositioning of the number of warp threads 9 by means of the laying device can also be adjusted 12 can be changed during the second period of time from the settings in the first period of time.

After the second period of time, a first period of time can again follow, in which a section 40 with a denser mesh is produced again. Thus, portions 40 of braiding of a first density may alternate with portions 41 of braiding of a second density different from the first density.

After the first period of time, a second period of time can thus follow, in which a second axial section 41 with a less dense braiding is again produced, and so on. This means that along the line arrangement 2 a second axial section 41 with a less dense braiding follows a first axial section 40 with a denser braiding several times, or a first axial section 40 with a denser braiding follows a second axial section 41 with a less dense braiding several times.

In this case, a second axial section 41 with a less dense braiding adjoins a first axial section 40 with a denser braiding, so that they lie next to one another.

After a line arrangement 2 is usually produced for a specific application and the conductor lengths required for further processing are cut to length from a line arrangement 2 of great length, the required conductor length is known in advance, so that the lengths of the first sections 40 are known. The lengths of the first axial sections 40 or, equivalently, the first time periods can thus be selected accordingly. Likewise, the length of the second axial section 41 can be selected in relation to the application, for example depending on the line length at which the braiding has to be removed, for example in order to connect conductors of the line arrangement 2 to a contact element. The line arrangement 2 is preferably cut to length in the area of the second axial section 41 .

In a further embodiment of the invention, a third axial section 42 of the mesh 1 is provided immediately in front of a second axial section 41 and/or immediately after a second axial section 41, in which the mesh 1 is denser than the mesh in the first axial section 40 (and thus of course also denser than the mesh in the second section 41), as indicated in Figure 4. Such a third axial section 42 is thus provided between a first axial section 40 and a second axial section 41 . The denser braid 1 in the third axial section 42 can prevent the braid 1 from opening further by itself after the braid 1 has been cut to length and separated in the second axial section 41 because the denser braid in the third section 42 holds together better. A third axial section 42 of the braiding 1 is preferably provided along the line arrangement 2 between every second axial section 41 with a less dense braiding and the first axial section 40 with a denser braiding.

The following procedure can be used to produce the denser meshwork 1 in the third axial section 42:

During a third period of the braiding process, which immediately follows a second period of time or immediately precedes a second period of time, either the feed speed vv of the line arrangement 2 is reduced by the braiding machine 35 at a constant weft thread peripheral speed ws and warp thread peripheral speed CÜK compared to the first feed speed vvi to a third feed speed vv3. Alternatively, the weft thread circumferential speed ws and/or the warp thread circumferential speed CÜK are increased to a third weft thread circumferential speed ws3 and third warp thread circumferential speed s while the first feed speed vvi remains the same or the second feed speed vv2 is reduced compared to the first feed speed vvi compared to the first weft thread circumferential speed wsi and warp thread circumferential speed CÜKI. In principle, a higher third feed speed vv3 compared to the first feed speed vvi would be conceivable in the third period of time if this is compensated for by a correspondingly increased third weft thread peripheral speed cuss and third warp thread peripheral speed s, resulting in a denser braid 1 overall.

If a traversing device 12 is provided, the point in time or the frequency of the repositioning of the number of warp threads 9 by means of the traversing device 12 can also be changed during the third time period compared to the settings in the first and/or second time period.

In one possible embodiment, the axial length of the first section 40 is in the tens to hundreds of centimeters or meters and the axial length of the second section 41 is in the tens to hundreds of millimeters. The axial length of the third section 42 is also in the ten to hundred millimeter range.

When the braiding 1 is being produced, the lengths of the sections 40, 41, 42 can be measured simply with a measuring wheel which is in contact with the line arrangement 2, or with another suitable sensor. In this way, the first and second, and possibly also the third, periods of time can be easily set.

At the transition between the sections, the changed parameters of the braiding can be changed abruptly (within the possibilities of the braiding machine 35) or gradually.

Claims

patent claims

1 . Verfahren zur Herstellung eines Geflechts (1) an einer Leitungsanordnung (2) mit zumindest einem elektrischen Leiter mit einer Flechtmaschine (35) wobei die Leitungsanordnung (2) mit einer Vorschubgeschwindigkeit (v _v ) in einer Vorschubrichtung (36) in Richtung einer Maschinenachse (4) der Flechtmaschine (35) durch die Flechtmaschine (35) durchgeführt wird, wobei eine Anzahl von Schussfadenspulen (8) jeweils mit einem darauf aufgewickelten Schussfaden (11) mit einer Schussfadenumfangsgeschwindigkeit (ws) in einer Schussfadendrehrichtung (26) in Umfangsrichtung um die Maschinenachse (4) rotiert und dabei die Anzahl der aufgewickelten Schussfäden (11) von der Anzahl der Schussfadenspulen (8) abgewickelt und zur Herstellung des Geflechts (1) zu zumindest einem Flechtpunkt (10) an der Leitungsanordnung (2) geführt wird und wobei eine Anzahl von Kettfadenspulen (6) jeweils mit einem darauf aufgewickelten Kettfaden (9) mit einer Kettfadenumfangsgeschwindigkeit (w _K ) in einer zur Schussfadendrehrichtung (26) entgegengesetzten Kettfadendrehrichtung (3) in Umfangsrichtung um die Maschinenachse (4) rotiert und dabei die Anzahl der Kettfäden (9) von der Anzahl der Kettfadenspulen (6) abgewickelt und zur Herstellung des Geflechts (1) zum zumindest einen Flechtpunkt (10) an der Leitungsanordnung (2) geführt wird, dadurch gekennzeichnet, dass an einem ersten axialen Abschnitt (40) der Leitungsanordnung (2) ein Geflecht (1) mit einer ersten Dichte hergestellt wird und an einem zweiten axialen Abschnitt (41) der Leitungsanordnung (2) ein Geflecht (1) mit einer zweiten Dichte hergestellt wird, wobei die zweite Dichte des Geflechts (1) niedriger als die erste Dichte des Geflechts (1) ist und dass sich der erste axiale Abschnitt (40) und der zweite axiale Abschnitt (41) an der Leitungsanordnung (2) mehrmals abwechseln.

2. The method according to claim 1, characterized in that the mesh (1) is produced with a first density by the line arrangement (2) being moved through the braiding machine (35) at a first advance speed (vvi) during a first period of the braiding process, and the number of weft threads (11) at a first weft thread peripheral speed (wsi) in the weft thread direction of rotation (26) and the number of warp threads (9) at a first warp thread peripheral speed (CÜKI) rotate around the machine axis (4) in the direction of warp thread rotation (3).

3. The method according to claim 2, characterized in that the braid (1) is produced with a second density by increasing the feed speed (v _v ) of the line arrangement (2) during a second period of the braiding process while the first weft thread peripheral speed (wsi) and/or the first Warp thread peripheral speed (CÜKI) compared to the first feed speed (vvi) is increased to a second feed speed (vv2).

4. The method according to claim 2, characterized in that the mesh (1) is produced with a second density by reducing the weft peripheral speed (ws) and/or the warp peripheral speed (CÜK) to a second weft peripheral speed (ws2) and/or second warp peripheral speed (CÜK2 ) can be reduced or set to zero.

5. The method according to claim 2, characterized in that the mesh (1) is produced with a second density by changing the feed speed (vv) of the line arrangement (2) compared to the first feed speed (vvi) during the second period of time and changing the weft thread peripheral speed (ws) and/or warp thread peripheral speed (w _K ) to a second weft thread peripheral speed (wsi) and/or first warp thread peripheral speed (CÜKI) to a second weft thread peripheral speed (wsi) and / or second warp peripheral speed (CÜK2) changed, preferably reduced or set to zero.

6. The method according to claim 1, characterized in that a mesh (1) with a third density is produced on a third axial section (42) of the line arrangement (2), which lies between the first section (40) and the second section (41), the third density of the mesh (1) being higher than the first density of the mesh (1).

7. The method according to claim 2 and 6, characterized in that the mesh (1) is produced with the third density by reducing the feed speed (vv) of the line arrangement (2) during a third period of the braiding process to a third feed speed (vva) compared to the first feed speed (vvi) while the weft thread peripheral speed (ws) and warp thread peripheral speed (w _K ) remain the same.

8. The method according to claim 2 and 6, characterized in that the mesh (1) is produced with the third density in that during a third time period of the braiding process the weft thread peripheral speed (ws) and/or warp thread peripheral speed (w _K ) is increased compared to the first weft thread peripheral speed (wsi) and/or first weft thread peripheral speed (wsi) and/or the first Warp thread peripheral speed (CÜKI) to a third weft thread peripheral speed (cuss) and/or third warp thread peripheral speed (s) can be increased.

9. The method according to claim 2 and 6, characterized in that the mesh (1) is produced with the third density by changing the feed speed (vv) of the line arrangement (2) compared to the first feed speed (vvi) during a third period of the braiding process and changing the weft thread peripheral speed (ws) and/or warp thread peripheral speed (w _K ) compared to the first weft thread peripheral speed (wsi) and/or first warp thread peripheral speed (s) to a third weft thread peripheral speed (cuss) and/or third warp thread peripheral speed (s) are changed, preferably increased.

10. Line arrangement with at least one electrical conductor, wherein the line arrangement (2) is surrounded by a braid (1) and the braid (1) is produced with a braiding machine (35), characterized in that a braid (1) with a first density is provided on a first axial section (40) of the line arrangement (2) and a braid (1) with a second density is provided on a second axial section (41) of the line arrangement (2), the second density of the braid being provided (1) is lower than the first density of the braid (1) and that the first axial section (40) and the second axial section (41) on the line arrangement (2) alternate several times.

11. Line arrangement according to Claim 10, characterized in that between the first axial section (40) of the line arrangement (2) and the second axial section (41) of the line arrangement (2) there is a third axial section (42) with a braid (1) with a third density, the third density of the braid (1) being higher than the first density of the braid (1).