DE102013021028A1 - Heald and procedures - Google Patents

Abstract

Heald, heald arrangement and method for producing a heddle, in particular flat steel heddle for weaving wire mesh. The heald comprises a strand shank and a receiving device for receiving in a weaving machine and a Litzenauge for receiving a warp thread. The Litzenauge is formed as a passage opening in the Litzenschaft and has a guide portion for the warp. In this case, the strand shank in the region of the guide section is treated by an electrochemical treatment process. The heddle has a guide portion with a transverse to the passageway continuously rounded dome. The heddle arrangement has a plurality of healds. The healds are partially integrally connected to each other and designed to be detachable for use in a weaving machine.

Description

The present invention relates to a heald, in particular a flat steel heald for weaving wire fabrics, with at least one Litzenschaft and at least one Litzenauge and a method for producing a heald and a heald arrangement.

Wire weaving produces wire mesh from warp and weft threads woven together. The weft thread is guided at crossing points above or below the warp threads. Healds are generally used to position the warp threads. The warp thread passes through an eye in the heald, the so-called Litzenauge.

During weaving, there is almost constant friction between the warp and heald in the area of the hosiery eye. This leads on the one hand to a wear of the heald and on the other hand to an abrasion of the warp thread. The friction can have an undesirable change in the surface of the warp result. Due to the use of metallic warp threads in the wire weaving, special demands are placed on the quality of the wire eyes.

In the prior art, the healds are usually punched together with the Litzenaugen of flat steel. It usually comes to the formation of punching chipping and burrs, which would significantly damage the surface of the continuous warp threads. Therefore, the healds or the Litzenaugen are usually ground after brushing, brushed and gummed or polished.

However, the known healds are still very much in need of improvement for the production of, in particular, finer wire fabrics. Frequently, it is also in consuming treated according to the prior art Litzenaugen still damage to the surface of correspondingly fine warp threads. For example, very fine wire fabrics made using conventional healds have undesirable reflections of light due to damage to the wire surface.

It is therefore the object of the present invention to provide a method for producing a heald and a heddle, which enable wire-gentle weaving, in particular with finer warp threads.

This object is achieved by a method for producing a heddle with the features of claim 1 and a heddle with the features of claim 8. Preferred features are the subject of the dependent claims. Further advantages and features will become apparent from the general description of the invention and the description of the embodiments.

The inventive method is suitable for producing a heddle, in particular flat steel heald for weaving wire mesh. The heddle comprises at least one strand shank and at least one receiving device for receiving in a weaving machine and at least one heddle eye for receiving at least one warp thread. The Litzenauge is formed as at least one passage opening in the Litzenschaft and has at least one guide section for the warp. In this case, the Litzenschaft is treated at least in the region of the guide portion by at least one electrochemical treatment process.

The method according to the invention has many advantages. A considerable advantage is that the Litzenschaft is treated at least in the region of the guide portion by at least one electrochemical treatment process. As a result, the guide section can be smoothed particularly well, so that a threaded warp thread without adverse surface changes can be woven with the heald. The electrochemical treatment process also provides more suitable surface roughness smoothing than conventional mechanical methods such as grinding or mechanical polishing. So a particularly wire-gentle weaving can be ensured even with thin or fine wires or warp threads.

The passage opening is preferably provided in a side surface of the Litzenschafts. The side surface extends between the longitudinal sides of the Litzenschafts. In this case, the passage opening extends in particular between two opposite side surfaces of the Litzenschafts. The male warp thread enters in particular on one side surface in the passage opening and on the opposite side surface again. The passage opening can also be cut from at least one longitudinal side starting in the Litzenschaft and be formed for example as a notch.

The guide section is provided in particular there on the Litzenauge, where the male warp thread is passed through the through hole during weaving. The guide portion may be at least a portion of the peripheral portion of the through hole. The guide section may extend in a particularly preferred development also circumferentially on Litzenauge.

Particularly preferably, material of the strand shank is removed by the electrochemical treatment process, at least in the region of the guide section. In this case, the electrochemical treatment method is in particular a plasma polishing and / or electropolishing or the like. Particularly preferably, the guide section is treated by electrolytic plasma polishing. In particular, the surface of the Litzenauges and / or the Litzenschafts and / or the heald and / or heald assembly is smoothed by the electrochemical treatment process.

In particular, an electrochemical removal method with at least one external current source is used. For example, the guide section is exposed in a suitable electrolyte bath to a certain voltage for a suitable time. In this case, material of the heddle can be removed anodically and / or cathodically.

Other physical-chemical removal methods or separation methods are also possible. The treatment method is in particular at least one removal method which enables non-mechanical separation. For example, the treatment method can also be configured as an etching method, plasma etching method, electroerodizing method, laser ablation method or else as a photochemical removal method.

It is particularly advantageous in such treatment methods that thereby burrs or punching chips are removed and at the same time the surface is optimized so that a particularly gentle wire weaving is possible. In addition, such methods are inexpensive and provide high reliability in surface smoothing. Another advantage is that usually oily and correspondingly unclean healds can be treated. As a result, costs can be saved because the healds z. B. after punching not expensive to clean and degrease.

Preferably, the guide portion is continuously rounded at least transversely to the passage opening by the treatment process. In this case, the guide section is continuously rounded in particular transversely to the side surface with the passage opening. In particular, the guide section is continuously rounded off from a first side surface of the litz shaft to a second side surface of the litz shaft opposite the first side surface.

The guide section may for example be elliptical, parabolic, circular and / or dome-like rounded. The rounding can have a constant radius. But it is also possible that the rounding has a variable radius. In particular, the rounding is continuous in such a way that essentially no corners, edges or protrusions impairing the warp thread occur. In particular, the continuous rounding also has no straight or linear sections.

The continuous rounding has the advantage that no corners or edges occur in the guide section, at which otherwise a high load on the surface of the warp thread would occur. Due to the constant rounding of the warp thread can thus be performed very smooth and low-friction. As a result, damage to the warp, for example by scoring, be effectively limited.

The electrochemical treatment method also has the advantage that, in addition to the smoothing, a correspondingly targeted shaping of the guide section is also possible. By a suitable adaptation of, for example, the voltage, the electrolyte solution or the residence time of the guide section in the electrolyte bath, a corresponding shape of the guide section can be formed, for. B. a dome or an elliptical curvature or the like. Such a steadily rounded dome allows a gentler pad of the warp in the guide section and thus a reduction in the wear of the heald.

It is possible that at least the passage opening is formed by at least one etching process. This has the advantage that, unlike punching, no burrs form on the stranded eye. An etching process also offers particularly favorable starting conditions for the electrochemical treatment of the Litzenschafts, so that the treatment time to form the guide section can be shortened.

It is also possible to form further contours and / or recesses on the heald by the etching method. For example, the receiving means for securing the heald in the weaving machine can be formed by the etching process. It is also possible that the heald by the etching substantially completely from an initial body, such as. B. a sheet metal or a strip steel is worked out.

The etching process may be a chemical removal process which is suitable for forming the contours or recesses from the starting material. For example, a dry etching process and / or a wet chemical etching process are possible. Possible is z. As well as photochemical etching and / or plasma etching.

It is also possible that at least the passage opening and / or other parts of the heald are produced by laser cutting, eroding, water jet cutting or other suitable method.

The passage opening can also be produced by the electrochemical treatment process. In this case, the electrochemical treatment process may be at least one etching process or comprise such. For example, the passage opening is worked out by the electrochemical treatment method and at the same time the guide section is smoothed. After the treatment, the heald can already be suitably web-enabled. However, it is also possible to have a post-treatment by means of a further electrochemical treatment process and in particular an electropolishing process and / or a plasma polishing process.

In one embodiment of the method, the heald is manufactured from an initial body. At least during the electrochemical treatment process, the heald remains at least partially connected to the starting body. The connection is in particular one-piece and / or cohesive.

In particular, the heald from a semifinished product such. B. a sheet metal, strip steel or other suitable starting body. In this case, the starting body is preferably chosen so that two or more healds can be made therefrom.

For example, first the passage opening is formed, for. B. by an etching process and / or by punching. In this case or before or subsequently, further features of the heddle can be formed, such as the receiving device and / or the Litzenschaft or the at least partially complete contour of the heald.

In a process step after the formation of the passage opening at least the guide section is treated by the electrochemical treatment method and z. B. smoothed and rounded. Preferably, however, the heald remains at least partially connected to at least a portion of the parent body.

Such an embodiment of the method has the considerable advantage that in the electrochemical treatment process not every strand has to be handled individually. For example, a plurality of healds, which are still partially connected to the starting body, may simply be subjected to the electrochemical treatment process as a workpiece, for example, placed in an electrolytic bath for plasma polishing. As a result, the production cost can be significantly reduced.

It is also possible that the heald remains at least partially connected to at least one other heald, at least during the electrochemical treatment process. For example, the ends of the Litzenschäfte may still be at least partially connected to each other. The healds can also be connected indirectly, z. B. over the starting body. The connection can only exist between the healds. But it can also be provided at least one connection between at least a portion of the heald and the output body.

Preferably, the heald is separated in time after the electrochemical treatment process. The heald is separated in a directly or indirectly following process step from the starting body and / or the other heald. The separation can be done for example by eroding, punching, breaking, cutting or by other suitable methods. It is also possible a manual release. The connection between the heald and the starting body or between the healds can be prepared accordingly in a previous method step, for example, the compound can be pre-etched or pre-punched or provided with suitable perforations or predetermined breaking points.

The heddle according to the invention is produced in particular by a method of the preceding claims. The heddle comprises at least one strand shank and at least one receiving device for receiving in a weaving machine and at least one heddle eye for receiving at least one warp thread. The Litzenauge is formed as at least one passage opening in the Litzenschaft and has at least one guide section for the warp. In this case, the guide portion has at least one continuous to the passage opening continuously rounded tip.

The heddle according to the invention has many advantages. A significant advantage is that the guide section has a steadily rounded dome. The warp thread rests particularly well on such a dome and there are no corners and edges at which the warp thread could be damaged or rubbed off. Thus, wires can be woven very gently with the heddle according to the invention. This has very beneficial effects on the quality of the surface of particular thin or very fine wire mesh, since, for example, no unwanted reflections occur.

In particular, the dome is rounded transversely to the side surfaces in which the passage opening is provided. In particular, the dome extends from a first side surface of the Litzenschafts to one of the first side surface opposite the second side surface of the Litzenschafts. In particular, the continuously rounded dome extends through the passage opening, wherein the passage opening extends between two opposite side surfaces of the Litzenschafts.

The dome is in particular continuously rounded, so that no heels and / or corners and / or edges occur, which could affect the surface of the warp unfavorably. In particular, a continuous or uninterrupted rounding is constantly rounded off. The radius or the curvature of the rounding can be designed differently. But it is also possible a substantially constant radius. The dome can, for example, be elliptical, parabolic, circular and / or dome-shaped.

Particularly preferably, the dome has a substantially linear crest line along the passage opening. The crest line runs in this case in particular essentially parallel to the side surfaces in which the passage opening is provided. As a result, the course direction of the crest line is, in particular, substantially transverse to the direction in which the crest is continuously rounded. The crest line runs in particular along the opening plane of the passage opening.

The crest line runs in particular along the points where the crest reaches a turning point. Transverse to the rounded tip, the guide portion in particular no dome and / or depressions and / or rounding on. As a result, a particularly large bearing surface is provided for the warp thread. Preferably, the apex line is substantially perpendicular to the longitudinal sides of the heald. But it is also possible an obliquely aligned to the long sides course.

It is also preferable that the passage opening has at least one corner with a rounding. The radius of the rounding is in particular smaller than one tenth of the length of the guide section. In this case, the length of the guide section extends along the passage opening. Also possible are two or more and preferably four such rounded corners. The rounding with a correspondingly small radius has the advantage that results in a longer guide section than for example in a round or oval Litzenauge.

In particular, the passage opening is formed substantially rectangular or square. In this case, preferably all corners are rounded as described above. Also possible is a through opening with five or six or more corners. The passage opening can also be formed as an elongate oval or circular.

It is likewise possible and preferred for the heddle eye to have at least two guide sections lying opposite one another and running essentially parallel to one another. Thus, the warp thread is also at a correspondingly changed position of the heald in the loom at a guide section. In addition, in the case of a worn guide section, the second guide section can be used, for example by turning and / or turning the heddle.

It can also be provided at least two Litzenaugen. This has the advantage that in a worn Litzenauge not the entire heald replaced, but only the warp thread must be introduced into the new Litzenauge.

The heddle is preferably formed substantially symmetrically so that it is reversible between at least two functionally identical operating positions. In particular, at least two guide sections are provided in a stranded eye. It can also be provided at least two Litzenaugen. Thus, at a certain degree of wear, the strand can be easily brought into a position by turning and / or turning, in which the warp thread passes through a guide section that is not or less worn. In this case, the heald is preferably formed so symmetrical that the receiving devices can be accommodated in each of the operating position matching the loom.

In a particularly advantageous development of the Litzenschaft is smoothed at least in the region of the guide portion by at least one electrochemical treatment process. The electrochemical treatment process preferably comprises at least one electropolishing process and / or at least one plasma polishing process. In particular, the dome is continuously rounded by the electrochemical treatment process. In particular, burrs, grooves, grooves, corners and / or edges are thereby smoothed and / or removed. It may also be the surface of the Litzenauges and / or the Litzenschafts and / or the heald and / or the support bracket smoothed by such a polishing process.

In another advantageous development, the heald is made of at least one metallic material. The heald points in particular a thickness of less than 200 microns. Preferably, the thickness is less than 110 microns. But it is also possible a greater thickness, for example, less than 1000 microns. The heald is particularly suitable and designed to be used in the interweaving of metallic wires with a diameter of less than 100 microns. The heald may also be suitable and designed for weaving wires with a diameter smaller than 50 μm. Also possible is training for use in interweaving thicker wires.

According to a further aspect of the invention, the object is to provide healds which are arranged so that they can be treated particularly inexpensively in the method according to the invention.

The object is achieved by a heddle arrangement with the features of claim 17. Preferred features are the subject of the dependent claims. Further advantages and features will become apparent from the general description of the invention and the description of the embodiments.

The heddle arrangement according to the invention has a plurality of healds, in particular flat steel heddles for weaving wire fabrics. At least one heddle of the plurality of healds comprises at least one strand shank and at least one receiving device for receiving in a weaving machine and at least one heddle eye for receiving at least one warp thread. The Litzenauge is formed as at least one passage opening in the Litzenschaft and has at least one guide section for the warp. In this case, the healds are at least partially integrally connected to each other and detachably designed for use in a loom.

The heddle arrangement according to the invention has many advantages. A particular advantage is that the healds are at least partially connected to each other in one piece. As a result, the healds can be handled as a component, which significantly reduces the production cost. The heald arrangement can therefore be used particularly advantageously in an electrochemical treatment method and preferably in the method according to the invention. For example, in plasma polishing, not many individual healds need to be placed in a corresponding electrolyte bath, but only the heald arrangement.

Another advantage is that the healds are designed to be detachable for use in a loom. Thus, the healds can be singulated after the common treatment. For example, the healds can be detached from the heddle arrangement as previously described for singulation in the electrochemical treatment process.

Another advantage is that the healds are integrally connected. Such a connection can be obtained, for example, very inexpensively if the healds are made from an initial body and at least partially remain connected to it. Thus, no additional joining individual healds is necessary because the heald arrangement is already present in the production of healds.

The healds can be connected directly to each other. Also possible is an indirect connection, z. B. over at least a part of the starting body. The healds may also be connected together at their ends, for example when the healds are made of a steel strip or the like.

In particular, three or four or more and preferably 10 or more or at least 20 or even 30 or more healds are connected together in a heddle arrangement. The healds are connected in particular cohesively.

Preferably, the healds of the heald assembly are so made of an output body and in particular also treated as previously described for the electrochemical treatment process.

The healds may be connected at least partially over at least one support bracket. The support bracket is in particular a part of the starting body, which is at least partially connected to the healds.

The support bracket may comprise at least one receiving frame which surrounds at least a portion of the healds. The healds are preferably received with the end portions in two opposite frame sides. The support bracket may also be formed as at least one receiving strip or the like, on which the healds are received with only one end.

It is also possible that the healds are arranged along at least one longitudinal side substantially parallel to each other. The healds are received in one piece with at least one end portion of their Litzenschafts in the carrying holder. Such an arrangement has the advantage that as little waste as possible and many healds can be made from a starting body. In addition, the through holes are aligned evenly, which is the Treatment of the guide sections simplified. The healds can also be accommodated with both end areas. Also possible are other connections, for example along the Litzenschafts. The connections can also be provided between the Litzenschäften.

Also possible and preferred is that the healds and the support bracket are made of a common base body. In particular, the healds and the support bracket are manufactured from a common starting body by an etching process. An etching process has the advantage that even more complex structures can be manufactured with high accuracy from a starting body. For example, the supporting device and the contours of the healds, together with passage openings and receiving devices, are etched photochemically from the starting body by the etching method, the connections between the heald and the carrying device remaining intact.

In a particularly preferred development of the Litzenschaft is smoothed at least in the region of the guide portion by at least one electrochemical treatment process, so that the guide portion has at least one continuous to the passage opening rounded dome. In particular, the strand shank is smoothed at least in the region of the guide section by at least one plasma polishing method and / or at least one electropolishing method. Preferably, the electrochemical treatment process and the dome are configured as described above.

Further advantages and features of the present invention will become apparent from the description of the embodiments, which will be explained with reference to the accompanying figures below.

In the figures show:

1 a schematic heddle according to the invention,

2 an enlarged schematic Litzenauge,

3 a schematic Litzenauge in a sectional side view,

4 another schematic Litzenauge in a sectional side view,

5 a schematic heald arrangement,

6 another schematic heddle arrangement; and

7 another schematized heddle arrangement.

The 1 shows a heddle according to the invention 1 , which is called a flat steel heald 2 is designed for wire weaving. The heald 1 has two end areas 31 and 51 , At the end areas 31 . 51 is in each case a recording device 4 provided with the heald 1 can be recorded in a loom. The heald 1 here has a Litzenschaft 3 with two opposite longitudinal sides 21 and 41 , Between the long sides 21 . 41 extends a front side surface 61 as well as the here not recognizable rear side surface. The heald 1 also has two wire eyes 5 . 500 on, each as a through hole 15 . 515 in the Litzenschaft 3 are formed.

The heald shown here 1 is particularly suitable and adapted to be used in the production of wire mesh with correspondingly small mesh sizes, for example less than 1000 microns and in particular less than 250 microns. The heald 1 is provided together with a variety of other healds in a loom, warp threads 9 to move up and down, forming looms. Through the shed a weft thread is guided, so that this weaves when closing the shed with the warp thread. It takes every heald 1 each one warp thread with her Litzenauge 5 on.

In order to be able to be used for correspondingly fine-meshed wire mesh, the heald here along its longitudinal side 21 a very small thickness of, for example, 100 microns. In order to ensure appropriate stability with such a material thickness, is the heald 1 here made of a metallic material and in particular of a spring steel. To be able to reliably interweave correspondingly fine warp threads, which may for example have a diameter of a few 100 micrometers or even a few micrometers, has the heald 1 here a Litzenauge 5 which has been optimized by an inventive electrochemical treatment process.

The 2 shows a greatly enlarged, schematized section of the heald 1 with the Litzenauge 5 ,

In the 3 is the heald 1 of the 2 shown in a cut along the section AA side view.

The Litzenauge 5 is here as a rectangular passage opening 15 in the Litzenschaft 3 educated. Cross to the long side 21 . 41 the stranded eye has two opposite guide sections 25 . 250 for guiding a warp thread 9 on. The guide section 25 can z. B. also to the passage opening 15 be formed circumferentially. By way of example, here is a warp thread 9 drawn, which at the guide section 25 rests.

For a particularly wire-saving recording of the warp thread 9 to ensure is the lead section 25 here constantly rounded. The second guide section 250 is the same as the first guide section 25 educated. Such designed guide sections 25 . 250 have the advantage that the warp thread 9 rests particularly evenly and that an abrasion or a scoring on the warp thread 9 can be effectively prevented.

The guide section 25 has a dome here 35 on. The dome 35 is transverse to the passage opening 15 steadily rounded, so the dome 35 its highest point between the front side surface 61 and the rear side surface 71 reached. In the direction along the passage opening 15 the dome stretches 35 essentially straight, so that a linear formed crest line 45 results. Such a linear or straight formed crest line 45 allows the largest possible contact surface for the warp thread 9 , as this usually obliquely through the Litzenauge 5 runs.

To a long or wide as possible guide section 25 in the Litzenauge 5 to reach is the passage opening 15 also formed as a rectangle. It would also be possible a square passage opening 15 , Furthermore, the corners 55 of the Litzenauges 5 with rounding off 65 provided to a sharp-edged concern of the warp thread 9 in the corners 55 to avoid. To go through the rounding off 65 the guide section 25 not to unnecessarily belittle, is the radius of the rounding 65 chosen here many times smaller than the length 75 of the guide section 25 ,

For smoothing the guide section 25 and shaping the steadily rounded dome 35 an electrochemical treatment process is used. Here was the heald 1 treated by electrolytic plasma polishing. This will be the heald 1 or a heddle arrangement 100 (as in the example 5 to 7 is shown) initially with a through hole 15 provided, which can be done for example by a stamping process or by an etching process. Next to the passage opening 15 can also be formed other parts, such as the receiving device 4 ,

In the subsequent electrolytic plasma polishing, the workpiece, so the heald 1 or the heddle arrangement 100 , poled as an anode and placed in an electrolyte bath, in which a cathode protrudes. The electrolyte bath contains a suitable aqueous salt solution. After applying a correspondingly high voltage between anode and cathode, gas formation occurs. Due to the high voltage, the gas in the region of the anode or of the workpiece changes into the plasma state. Under the influence of the plasma material is removed on the workpiece. The material removal can be influenced in particular by the exposure time of the plasma.

A particular advantage of the electrolytic Plasmapolierens is that burrs and punching breaks, which z. B. in the manufacture of the passage opening 15 and grooves or other irregularities in the surface of the heald 1 be removed. In addition, an optimally smoothed or polished surface is achieved. A thus treated surface of a Führungsabschitts 25 may for example have microroughs of less than 0.01 microns.

It is also advantageous that, despite the extensive removal of grooves and surface defects, only a very small amount of material is removed. This is especially important in healds 1 , which are intended for the production of finer wire mesh and therefore have only a very small thickness. Compared to electropolishing, the electrolytic plasma polishing has the additional advantage that no special cleaning of the workpieces is necessary and also oily healds 1 can be polished.

The plasma-polished guide section 25 offers a very favorable surface smoothness for a low-friction contact with the warp thread 9 , In addition to the surface smoothing also the dome is due to the material removal 35 in the leadership section 25 constantly rounded. Since especially corners and edges are removed, the dome is 35 transverse to the passage opening 15 rounded. The dome 35 So is in the direction of the front side surface 61 to the rear side surface 71 of the litz shaft 3 constantly rounded.

As well as the warp thread 9 from the front side surface 61 to the rear side surface through the passage opening 15 runs, lies the warp thread 9 thus only at the rounded areas of the guide section 25 at. Corners or edges in the guide section 25 which the warp thread 9 noticeable damage, are no longer present after the plasma polishing.

Other polishing methods and in particular mechanical polishing methods often have the disadvantage that rectangular through openings 15 after polishing often have an oval or round shape. This will change the length 75 of the guide section 25 unfavorably shortened. Here is another advantage of electrolytic plasma polishing, as this while corners are rounded, but the basic geometric shape is retained. So here was the lead section 25 Although, on the one hand, continuously rounded off transversely to the passage opening, on the other hand the linear peak line remained 45 obtained during plasma polishing.

Due to the plasma polishing were also the corners 55 the passage opening 15 rounded, so no sharp-edged corners 55 remain where the velcro 9 could rub. In this case, by the plasma polishing correspondingly small radii of the rounding 65 in the corners 55 be achieved.

In the 4 is a section of a heald 1 shown in a sectioned, schematic side view. The guide section 25 here has a steadily rounded dome 35 on, which is parabolic. But there are also constantly rounded peaks 35 possible with other shapes. For example, the shape of the dome 35 be adjusted by the removal rate during plasma polishing. The removal rate in turn can be adjusted by various parameters such as the salt concentration in the electrolyte bath, the pH, the voltage or the current and in particular by the action of the plasma on the workpiece.

The 5 shows a heald arrangement 100 with a heald 1 and another heald 11 , The heald arrangement 100 was from a starting body shown here in dashed lines 6 produced by a photochemical etching process. There were healds 1 . 11 not completely from the starting body 6 solved, but remained at an area of the starting body 6 , which as a carrying holder 7 serves.

About as a recording bar 17 trained carrying holder 7 are the healds 1 . 11 partially integrally connected with each other. To the healds 1 . 11 in a weaving machine, they can from the support bracket 7 be resolved and isolated. This can be done for example by breaking or cutting or by an erosion process, laser cutting or etching or the like.

The heddle arrangement shown here 100 is preferably only a section of a heddle arrangement 100 with other healds 1 . 11 , Preferably, the healds 1 . 11 from a larger starting body 6 made, so a variety of other healds 1 . 11 on a correspondingly extended recording bar 17 is arranged.

The healds 1 . 11 are here with one of their end areas 31 on the support bracket 7 taken and along its long side 21 . 41 arranged substantially parallel to each other. For example, can also have another support bracket 7 at the opposite end 51 be provided.

In the 6 is another heald arrangement 100 shown, which a plurality of interconnected healds 1 . 11 having. Here are, for example, 37 healds 1 . 11 , which in one piece as a recording frame 27 trained carrying holder 7 are connected.

The heddle arrangement shown here 100 was made from a sheet metal plate as a starting body 6 produced. By photochemical etching, the contour characteristics of the healds were 1 . 11 from the starting body 6 worked out, such as the recording facilities 4 , the Litzenaugen 5 as well as the Litzenschäfte 3 , Such an etching process enables a reliable working out of even more complicated structures without the healds 1 . 11 warp or create burrs.

The end areas 31 . 51 healds 1 . 11 are still after etching with the starting body 6 integrally connected, so that one the healds 1 . 11 surrounding frame 27 results. Such a recording frame 27 has the advantage that on the one hand not much material from the starting body 6 needed, but on the other hand the healds 1 . 11 safely surrounds. As a result, a simple handling of the heddle arrangement 100 possible.

For example, the heald arrangement 100 after etching an electrochemical treatment process such. As the plasma polishing, be subjected without any heald 1 . 11 must be handled individually. This allows a very inexpensive and efficient processing of healds 1 . 11 or the guide sections 25 during plasma polishing.

After the guide sections and possibly other areas of healds 1 . 11 electrochemically treated, the healds for use in a weaving machine from the receiving frame 27 be solved. For example, this only needs along the end areas 31 . 51 be cut so that the connection between heald 1 . 11 and recording frames 27 is disconnected.

The 7 shows a heddle arrangement with successively arranged healds 1 . 11 , The healds 1 . 11 are here at their end areas 31 . 51 integrally connected directly to each other. But it is also possible that between the healds 1 . 11 a carrying holder 7 is provided so that they are indirectly connected.

The heddle arrangement shown here 100 For example, from a steel strip as the starting body 6 getting produced. After forming the through holes 15 as well as possibly further contours of the healds 1 . 11 can the heald arrangement 100 be put on a roll again. For the electrochemical treatment of the guide sections 25 The roll can then be unrolled again and pulled for example for plasma polishing through an electrolyte bath.

The invention presented here shows a method for the production of healds 1 , which allow a particularly wire-gentle weaving even of finer wires.

These are the guide sections 25 the Litzenaugen 5 in particular smoothed by an electrolytic plasma polishing method and with a transverse to the passage opening 15 steadily rounded dome 35 Mistake.

Particularly advantageous is the heald arrangement presented here 100 with at least partially prefabricated healds 1 which are particularly easy to handle as a single workpiece. healds 1 used in such a heddle arrangement 100 can therefore be particularly simple and inexpensive to undergo an electrochemical treatment process.

LIST OF REFERENCE NUMBERS

1

heald

2

Flat steel heald

3

heald rod

4

recording device

5

heald

6

output body

7

supporting bracket

9

warp

11

heald

15

Through opening

17

recording toolbar

21

long side

25

guide section

27

mounting frame

31

end

35

knoll

41

long side

51

end

45

crest line

55

corner

61

side surface

65

rounding off

71

side surface

75

length

100

Weblitzenanordnung

250

guide section

500

heald

515

Through opening

Claims (21)

Method for producing a heddle ( 1 ), in particular flat steel heald ( 2 ) for weaving wire fabrics, wherein the heddle at least one strand shank ( 3 ) and at least one receiving device ( 4 ) for inclusion in a loom and at least one Litzenauge ( 5 ) for receiving at least one warp thread ( 9 ), wherein the Litzenauge ( 5 ) as at least one passage opening ( 15 ) in the strut shaft ( 3 ) is formed and at least one guide section ( 25 ) for the warp thread ( 9 ), characterized in that the Litzenschaft ( 3 ) at least in the area of the guide section ( 25 ) is treated by at least one electrochemical treatment process. Method according to the preceding claim, wherein at least in the region of the guide section ( 25 ) Material of the Litzenschafts ( 3 ) is removed by the electrochemical treatment method and in particular by electropolishing and / or plasma polishing. Method according to one of the preceding claims, wherein, by the treatment method, the guide section (FIG. 25 ) at least transversely to the passage opening ( 15 ) is rounded off steadily. Method according to one of the preceding claims, wherein at least the passage opening ( 15 ) is formed by at least one etching process. Method according to one of the preceding claims, wherein the heald ( 1 ) from an initial body ( 6 ) and at least partially with the starting body (at least during the electrochemical treatment process) ( 6 ) remains connected. Method according to one of the preceding claims, wherein the heald ( 1 ) at least during the electrochemical treatment process with at least one other heald ( 11 ) is at least partially connected. Method according to one of the preceding claims, wherein the heald ( 1 ) after the time electrochemical treatment process is isolated. Heald ( 1 ), in particular produced according to one of the preceding claims, wherein the heald ( 1 ) at least one Litzenschaft ( 3 ) and at least one receiving device ( 4 ) for receiving in a loom and at least one Litzenauge ( 5 ) for receiving at least one warp thread ( 9 ), wherein the Litzenauge ( 5 ) as at least one passage opening ( 15 ) is formed in the Litzenschaft and at least one guide section ( 25 ) for the warp thread ( 9 ), characterized in that the guide section ( 25 ) at least one transverse to the passage opening ( 15 ) steadily rounded dome ( 35 ) having. Heald ( 1 ) according to the preceding claim, wherein the dome ( 35 ) along the passage opening ( 15 ) a substantially linear formed crest line ( 45 ) having. Heald ( 1 ) according to one of the two preceding claims, wherein the passage opening ( 15 ) at least one corner ( 55 ) with a rounding off ( 65 ) and wherein the radius of the rounding ( 65 ) smaller than one tenth of the length ( 75 ) of the guide section ( 25 ), where the length ( 75 ) of the guide section ( 25 ) along the passage opening ( 15 ). Heald ( 1 ) according to one of the three preceding claims, wherein the passage opening ( 15 ) is formed substantially rectangular and / or square. Heald ( 1 ) according to one of the four preceding claims, wherein the Litzenauge ( 5 ) at least two opposite and substantially parallel to each other guide portions ( 25 . 250 ) having. Heald ( 1 ) according to one of the five preceding claims, wherein at least two stranded eyes ( 5 . 500 ) are provided. Heald ( 1 ) according to one of the six preceding claims, which is designed substantially symmetrically so that it is reversible between at least two functionally identical operating positions. Heald ( 1 ) according to one of the seven preceding claims, wherein the Litzenschaft ( 3 ) at least in the area of the guide section ( 25 ) is smoothed by at least one electrochemical treatment process and in particular by at least one electropolishing process and / or at least one plasma polishing process. Heald ( 1 ) according to one of the eight preceding claims, made of at least one metallic material and having a thickness of less than 200 microns and suitable and adapted to be used in interweaving metallic wires with a diameter of less than 100 microns. Heald arrangement ( 100 ) with a plurality of healds ( 1 . 11 ), in particular flat steel healds ( 2 ) for weaving wire fabrics, wherein at least one heald ( 1 ) of the plurality of healds ( 1 . 11 ) at least one Litzenschaft ( 3 ) and at least one receiving device ( 4 ) for inclusion in a loom and at least one Litzenauge ( 5 ) for receiving at least one warp thread ( 9 ), wherein the Litzenauge ( 5 ) as at least one passage opening ( 15 ) in the strut shaft ( 3 ) is formed and at least one guide section ( 25 ) for the warp thread ( 9 ), characterized in that the healds ( 1 . 11 ) at least partially integrally connected to each other and are designed to be detachable for use in a weaving machine. Heald arrangement ( 100 ) according to the preceding claim, wherein the healds ( 1 . 11 ) at least partially over at least one support bracket ( 7 ) and wherein the carrying holder ( 7 ), in particular at least one receiving frame ( 27 ) comprising at least a portion of the healds ( 1 . 11 ) surrounds. Heald arrangement ( 100 ) according to the preceding claim, wherein the healds ( 1 . 11 ) along at least one longitudinal side ( 21 ) are arranged substantially parallel to one another and with at least one end region ( 31 ) of her Litzenschaft ( 3 ) in the carrying holder ( 7 ) are received in one piece. Heald arrangement ( 100 ) according to one of the two preceding claims, wherein the healds ( 1 . 11 ) and the carrying holder ( 7 ) from a common starting body ( 6 ) are made in particular by an etching process. Heald arrangement ( 100 ) according to one of the four preceding claims, wherein the Litzenschaft ( 3 ) at least in the area of the guide section ( 25 ) is smoothed by at least one electrochemical treatment method and in particular by at least one electropolishing method and / or at least one plasma polishing method, so that the guide section (FIG. 25 ) at least one in the direction of the passage opening ( 15 ) steadily rounded dome ( 35 ) having.

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