• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
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  • 优先权
    • 专利摘要:
    The invention relates to a method for the treatment of a heddle (1) and a corresponding heddle, in particular flat steel heddle for weaving wire mesh. The heald comprises a heddle shaft (3) and a receiving device for receiving in a loom and a Litzenauge (5) for receiving a warp thread. The Litzenauge is formed as a passage opening (15) in the Litzenschaft and has a guide portion (25) for the warp thread. In this case, the strand shank in the region of the guide section is treated by an electrochemical treatment process. The heald has a guide section with a dome (35) which is continuously rounded transversely to the passage opening.
    公开号:CH709027B1
    申请号:CH01700/14
    申请日:2014-11-05
    公开日:2019-10-15
    发明作者:
    申请人:Hoening Ohg Waldemar；
    IPC主号:
    专利说明:

    Description: The present invention relates to a method for treating a heald, in particular flat steel heald, for weaving wire fabrics, the heald comprising at least one heald shaft and at least one receiving device for receiving into a weaving machine and at least one heald eye for receiving at least one warp thread , wherein the heddle eye is designed as at least one through opening in the heddle shaft and has at least one guide section for the warp thread. The invention further relates to a heald treated by this method.
    [0002] In the wire weaving mill, wire fabrics are produced from interwoven warp and weft threads. The weft thread is passed at crossing points above or below the warp threads. Healds are generally used to position the warp threads. The warp thread runs through an eye in the heald, the so-called heald eye.
    During the weaving process, there is almost constant friction between the warp thread and the heald in the area of the heald eye. This leads on the one hand to wear of the heald and on the other hand to abrasion of the warp thread. The friction can result in an undesirable change in the surface of the warp thread. The use of metallic warp threads in wire weaving therefore places special demands on the quality of the strand eyes.
    In the prior art, the healds are usually punched out of flat steel together with the heald eyes. As a rule, punch breaks and burrs are formed, which would significantly damage the surface of the continuous warp threads. Therefore, the healds or the heald eyes are usually ground, brushed, rubberized or polished after punching.
    However, the known healds are still very much in need of improvement for the production of, in particular, finer wire fabrics. Often, even stranded eyes which are treated in accordance with the state of the art are still damaged on the surface of correspondingly fine warp threads. For example, very fine wire fabrics, which were produced using conventional healds, have undesirable light reflections which are due to damage to the wire surface.
    It is therefore the object of the present invention to provide a method for treating a heald and a heald available that enable wire-friendly weaving, especially with finer warp threads.
    This object is achieved by a method for treating a heald with the features of claim 1 and a heald with the features of claim 8. Preferred features are the subject of the dependent claims. Further advantages and features result from the general description of the invention and the description of the exemplary embodiments.
    The inventive method is suitable for treating a heald, in particular flat steel heald for weaving wire fabrics. The heald comprises at least one heald shaft and at least one receiving device for receiving in a weaving machine and at least one heald eye for receiving at least one warp thread. The heddle eye is designed as at least one through opening in the heddle shaft and has at least one guide section for the warp thread. The stranded shaft is treated at least in the region of the guide section by at least one electrochemical treatment method.
    [0009] The method according to the invention has many advantages. A considerable advantage is that the strand shaft is treated at least in the region of the guide section by at least one electrochemical treatment method. This allows the guide section to be smoothed particularly well, so that a threaded warp thread can be woven with the heald without disadvantageous surface changes. The electrochemical treatment process also offers a more suitable smoothing of the surface roughness than the usual mechanical processes such as grinding or mechanical polishing. In this way, particularly gentle wire weaving can be guaranteed even with thin or fine wires or warp threads.
    The through opening is preferably provided in a side surface of the strand shaft. The side surface extends between the long sides of the heald shaft. In this case, the through opening runs in particular between two opposite side surfaces of the litz shaft. The warp thread to be picked up enters the through opening in particular on one side surface and emerges again on the opposite side surface. The through opening can also be cut into the strand shaft starting from at least one long side and can be designed, for example, as a notch.
    The guide section is particularly provided on the heddle eye where the warp thread to be picked up will run through the through opening during weaving. The guide section can be at least a section of the peripheral region of the through opening. In a particularly preferred development, the guide section can also extend all the way around the strand eye.
    Particularly preferably, material of the strand shaft is removed at least in the region of the guide section by the electrochemical treatment method. The electrochemical treatment method is in particular plasma polishing and / or electropolishing or the like. The guide section is particularly preferred
    CH 709 027 B1 treated by electrolytic plasma polishing. In particular, the surface of the heald eye and / or the heald shaft and / or the heald and / or the heald arrangement is smoothed by the electrochemical treatment method.
    In particular, an electrochemical removal method with at least one external power source is used. For example, the guide section is exposed to a certain voltage for a suitable time in a suitable electrolyte bath. Material of the heald can be removed anodically and / or cathodically.
    Other known physicochemical removal processes or separation processes are, for example, etching processes, plasma etching processes, electroeroding processes, laser removal processes or photochemical removal processes.
    It is particularly advantageous in such treatment methods that burrs or punching breaks are removed and at the same time the surface is optimized so that weaving that is particularly gentle on the wire is possible. In addition, such processes can be carried out without great effort and offer a high level of reliability in surface smoothing. Another advantage is that usually oily and accordingly unclean healds can also be treated. This can save costs because the healds e.g. do not have to be laboriously cleaned and degreased after punching out.
    [0016] The treatment section preferably rounds off the guide section at least transversely to the through opening. The guide section is in particular continuously rounded off transversely to the side surface with the through opening. In particular, the guide section is continuously rounded from a first side surface of the strand shaft to a second side surface of the strand shaft opposite the first side surface.
    The guide section can be rounded, for example, elliptical, parabolic, circular and / or dome-like. The rounding can have a constant radius. However, it is also possible for the rounding to have a variable radius. In particular, the rounding is continuous in such a way that there are essentially no corners, edges or projections which impair the warp thread. In particular, the continuous rounding also has no straight or linear sections.
    The continuous rounding has the advantage that there are no corners or edges in the guide section, at which a high load for the surface of the warp thread would otherwise occur. Due to the constant rounding, the warp thread can be guided particularly smoothly and with little friction. This can effectively limit damage to the warp thread, for example due to scoring.
    [0019] The electrochemical treatment method also has the advantage that, in addition to smoothing, it also enables a correspondingly targeted shaping of the guide section. By suitable adjustment of, for example, the voltage, the electrolyte solution or the dwell time of the guide section in the electrolyte bath, a corresponding shape of the guide section can be formed, e.g. a dome or an elliptical curvature or the like. Such a continuously rounded tip enables the warp thread to be placed more gently in the guide section and thus also reduces the wear of the heald.
    It is possible that at least the through opening is formed by at least one etching process. This has the advantage that, unlike punching, there are no burrs on the strand eye. An etching process also offers particularly favorable starting conditions for the electrochemical treatment of the strand shaft, so that the treatment time for forming the guide section can be shortened.
    Further contours and / or recesses on the heald can also be formed by the etching process. For example, the receiving devices for attaching the heald in the weaving machine can be formed by the etching process. It is also possible that the heald essentially completely consists of a starting body, e.g. a sheet metal or a strip steel is worked out.
    The etching process can 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 is possible. It is possible e.g. also photochemical etching and / or plasma etching.
    But it is also possible that at least the through opening and / or other parts of the heald are produced by laser cutting, eroding, water jet cutting or other suitable methods.
    The through opening can also be produced by the electrochemical treatment process. The electrochemical treatment method can be at least one etching method or include one. For example, the through 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 be suitable for weaving in a suitable manner. However, post-treatment by a further electrochemical treatment method and in particular an electropolishing method and / or plasma polishing method is also possible.
    In one embodiment of the method, the heald is made from a starting body. The heald remains at least partially connected to the starting body at least during the electrochemical treatment process. The connection is in particular in one piece and / or integral.
    CH 709 027 B1 In particular, the heald is made from a semi-finished product such as a sheet metal, steel strip or another suitable starting body. The starting body is preferably selected so that two or more healds can be made from it.
    For example, the through opening is first formed, e.g. by an etching process and / or by stamping. In this case or before or afterwards, further features of the heald can be formed, such as, for example, the receiving device and / or the heald shaft 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 process and e.g. smoothed and rounded. However, the heald preferably remains connected at least in some areas to at least part of the starting body.
    Such an embodiment of the method has the considerable advantage that not every strand has to be handled individually in the electrochemical treatment method. For example, several healds, which are still partially connected to the starting body, can simply be subjected to the electrochemical treatment process as one workpiece, for example inserted into an electrolyte bath for plasma polishing. As a result, the manufacturing effort 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 heddle shafts can still be at least partially connected to one another. The healds can also be connected indirectly, e.g. over the starting body. The connection can only exist between the healds. However, at least one connection between at least part of the heald and the starting body can also be provided.
    [0031] The heald is preferably separated in time according to the electrochemical treatment process. The heald is separated from the starting body and / or the other heald in a directly or indirectly following process step. The separation can take place, for example, by eroding, punching, breaking, cutting or by other suitable processes. Manual removal is also possible. 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 connection can be pre-etched or pre-punched or provided with suitable perforations or predetermined breaking points.
    The heald comprises at least one heald shaft and at least one receiving device for receiving in a weaving machine and at least one heald eye for receiving at least one warp thread. The heddle eye is designed as at least one through opening in the heddle shaft and has at least one guide section for the warp thread. The guide section has at least one dome that is continuously rounded transversely to the through opening.
    The heddle according to the invention has many advantages. A considerable advantage is that the guide section has a continuously rounded tip. The warp thread lies particularly well against such a crest and there are no corners and edges at which the warp thread could be damaged or rubbed off. Thus, wires can be woven particularly gently with the heald according to the invention. This has very advantageous effects on the quality of the surface of, in particular, thin or very fine wire meshes, since, for example, no undesired reflections occur.
    In particular, the crest is rounded off transversely to the side surfaces in which the through opening is provided. The crest extends in particular from a first side surface of the strand shaft to a second side surface of the strand shaft opposite the first side surface. In particular, the continuously rounded tip extends through the through opening, the through opening extending between two opposite side surfaces of the strand shaft.
    The crest is in particular continuously rounded, so that no shoulders and / or corners and / or edges occur which could adversely affect the surface of the warp thread. In particular, a continuous or uninterrupted rounding is continuously rounded off. The radius or the curvature of the rounding can be designed differently. However, an essentially constant radius is also possible. The crest can be, for example, elliptical, parabolic, circular and / or dome-shaped.
    [0036] The dome particularly preferably has an essentially linear apex line along the passage opening. The apex line in particular runs essentially parallel to the side surfaces in which the through opening is provided. As a result, the direction of the apex line is in particular essentially transverse to the direction in which the crest is continuously rounded. The apex line runs in particular along the opening plane of the through opening.
    The apex line runs in particular along the points at which the crest reaches a turning point. Transverse to the rounded crest, the guide section in particular has no crest and / or depressions and / or roundings. This provides a particularly large contact surface for the warp thread. Preferably runs
    CH 709 027 B1 the apex line essentially perpendicular to the long sides of the heald. However, a course that is oriented obliquely to the long sides is also possible.
    It is also preferred that the through opening has at least one corner with a rounded portion. The radius of the rounding is in particular less than one tenth of the length of the guide section. The length of the guide section extends along the through opening. Two or more and preferably four such rounded corners are also possible. The rounding with a correspondingly small radius has the advantage that there is a longer guide section than, for example, with a round or oval strand eye.
    [0039] In particular, the through opening is essentially rectangular or square. All corners are preferably rounded as described above. A through opening with five or six or more corners is also possible. The through opening can also be designed as an elongated oval or circular.
    It is also possible and preferred that the strand eye has at least two opposite and substantially parallel guide sections. Thus, the warp thread is in contact with a guide section even when the heald is positioned accordingly in the weaving machine. In addition, the second guide section can be used in the case of a worn guide section, for example by rotating and / or turning the heald.
    At least two strand eyes can also be provided. This has the advantage that if the heald eye is worn, the entire heald does not have to be replaced, but only the warp thread has to be inserted into the new heald eye.
    [0042] The heald is preferably essentially symmetrical in such a way that it can be turned between at least two functionally identical operating positions. In particular, at least two guide sections are provided in a strand eye. At least two strand eyes can also be provided. With a certain degree of wear, the strand can be brought into a position simply by turning and / or turning, in which the warp thread runs through a guide section that is not or less worn. The heald is preferably designed symmetrically in such a way that the receiving devices can be suitably received on the weaving machine in each of the operating positions.
    [0043] In a particularly advantageous development, the stranded shaft is smoothed at least in the region of the guide section by at least one electrochemical treatment method. The electrochemical treatment method preferably comprises at least one electropolishing method and / or at least one plasma polishing method. In particular, the crest is continuously rounded off by the electrochemical treatment process. In particular, burrs, grooves, grooves, corners and / or edges are thereby smoothed and / or removed. The surface of the heald eye and / or the heald shaft and / or the heald and / or the carrying holder can also be smoothed by such a polishing process.
    In another advantageous development, the heald is made of at least one metallic material. The heald has in particular a thickness of less than 200 μm. The thickness is preferably less than 110 μm. However, a greater thickness is also possible, for example less than 1000 μm. The heald is particularly suitable and designed to be used when weaving metallic wires with a diameter of less than 100 μm. The heald can also be suitable and designed for weaving wires with a diameter of less than 50 μm. Training for use in weaving thicker wires is also possible.
    The heald assembly has a plurality of healds, in particular flat steel healds for weaving wire fabrics. At least one heald of the plurality of healds comprises at least one heald shaft and at least one receiving device for receiving in a weaving machine and at least one heald eye for receiving at least one warp thread. The heddle eye is designed as at least one through opening in the heddle shaft and has at least one guide section for the warp thread. The healds are connected to one another in one piece at least in regions and are designed to be detachable for use in a weaving machine.
    The heald assembly has many advantages. A particular advantage is that the healds are connected to one another in one piece, at least in regions. As a result, the healds can be handled as one component, which considerably reduces the manufacturing outlay. The heald arrangement can therefore be used particularly advantageously in an electrochemical treatment process and preferably in the process according to the invention. For example, in plasma polishing, it is not necessary to place many individual healds 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 weaving machine. This way the healds can be easily separated after the treatment. For example, the healds can be detached from the heald arrangement in the manner previously described for the separation in the electrochemical treatment method.
    Another advantage is that the healds are connected in one piece. Such a connection can be obtained very easily, for example, if the healds are produced from an initial body and remain at least partially connected to it. No additional assembly of individual healds is necessary, since the heald arrangement is already present during the manufacture of the healds.
    CH 709 027 B1 The healds can be connected directly to one another. An indirect connection is also possible, e.g. over at least part of the starting body. The healds can also be connected to one another at their ends, for example if the healds are manufactured from 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 to one another in a heald arrangement. The healds are particularly cohesively connected.
    The healds of the heald assembly are preferably made in this way from a starting body and, in particular, are also treated in the manner described above for the electrochemical treatment method.
    The healds can be connected at least in regions via at least one support bracket. The carrying bracket is in particular part of the starting body, which is at least partially connected to the healds.
    The carrying bracket may comprise at least one receiving frame which surrounds at least part of the healds. The healds are preferably received with the end regions in two opposite frame sides. The support bracket can also be designed as at least one receiving strip or the like, on which the healds are received with only one end.
    It is also possible for the healds to be arranged essentially parallel to one another along at least one long side. The healds are accommodated in one piece with at least one end region of their heald shaft in the carrying holder. Such an arrangement has the advantage that there is as little waste as possible and that many healds can be produced from one starting body. In addition, the through openings are aligned uniformly, which simplifies the handling of the guide sections. The healds can also be accommodated with both end areas. Other connections are also possible, for example along the Litz shaft. The connections can also be provided between the heddle shafts.
    It is also possible and preferred that the healds and the support bracket are made from a common starting 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 from a starting body with high accuracy. For example, the carrying device and the contours of the healds together with through openings and receiving devices are photochemically etched from the starting body by the etching process, the connections between the heald and the carrying device being retained.
    In a particularly preferred development, the strand shaft is smoothed at least in the region of the guide section by at least one electrochemical treatment method, so that the guide section has at least one dome which is continuously rounded transversely to the through opening. In particular, the strand shaft is smoothed at least in the region of the guide section by at least one plasma polishing process and / or at least one electropolishing process. The electrochemical treatment method and the crest are preferably designed as described above.
    Further advantages and features of the present invention result from the description of the exemplary embodiments, which are explained below with reference to the accompanying figures.
    The figures show:
    1 is a schematic heald according to the invention,
    2 an enlarged schematic stranded eye,
    3 shows a schematic stranded eye in a sectional side view,
    4 shows a further schematic stranded eye in a sectional side view,
    5 shows a schematic heald arrangement,
    6 shows a further schematic heald arrangement; and
    7 shows a further schematic heald arrangement.
    1 shows a heald 1 according to the invention, which is designed as a flat steel heald 2 for wire weaving. The heald 1 has two end regions 31 and 51. A receiving device 4 is provided at each end region 31, 51, with which the heald 1 can be received in a weaving machine. The heald 1 here has a heald shaft 3 with two opposite longitudinal sides 21 and 41. Between the longitudinal sides 21, 41 there extends a front side surface 61 and the rear side surface, which cannot be seen here. The heald 1 also has two heald eyes 5, 500, each of which is designed as a through opening 15, 515 in the heald shaft 3.
    CH 709 027 B1 The heald 1 shown here is particularly suitable and designed to be used in the production of wire mesh with correspondingly small mesh sizes, for example less than 1000 μm and in particular less than 250 μm. The heald 1, together with a large number of other healds, is provided in a weaving machine for moving warp threads 9 up and down and thereby forming sheds. A weft thread is passed through the shed so that it interweaves with the warp thread when the shed is closed. Each heald 1 receives a warp thread with its heald eye 5.
    In order to be able to be used for correspondingly fine-mesh wire fabrics, the heald has a very small thickness of, for example, 100 micrometers along its long side 21. In order to ensure appropriate stability with such a material thickness, the heald 1 is made here from a metallic material and in particular from a spring steel. In order to be able to reliably weave correspondingly fine warp threads, which for example can have a diameter of a few 100 micrometers or even a few micrometers, the heald 1 here has a heald eye 5 which has been optimized by an electrochemical treatment method according to the invention.
    2 shows a greatly enlarged, schematic section of the heald 1 with the heald eye 5.
    FIG. 3 shows the heald 1 of FIG. 2 in a side view cut along the section line AA.
    The heddle eye 5 is designed here as a rectangular through opening 15 in the heddle shaft 3. Transverse to the long side 21, 41, the heddle eye has two opposite guide sections 25, 250 for guiding a warp thread 9. The guide section 25 can e.g. also be designed to run around the through opening 15. As an example, a warp thread 9 is shown here, which rests on the guide section 25.
    In order to ensure a particularly wire-friendly reception of the warp thread 9, the guide section 25 is continuously rounded here. The second guide section 250 is designed like the first guide section 25. Guide sections 25, 250 designed in this way have the advantage that the warp thread 9 lies particularly evenly and that abrasion or scoring on the warp thread 9 can be effectively prevented.
    The guide section 25 has a crest 35 here. The crest 35 is continuously rounded transversely to the through opening 15, so that the crest 35 reaches its highest point between the front side surface 61 and the rear side surface 71. In the direction along the through opening 15, the dome 35 extends essentially straight, so that a linear apex line 45 results. Such a linear or straight crest line 45 allows the support surface for the warp thread 9 to be as extensive as possible, since this usually runs obliquely through the strand eye 5.
    In order to achieve the longest possible or wide guide section 25 in the strand eye 5, the through opening 15 is also designed as a rectangle. A square through opening 15 would also be possible. Furthermore, the corners 55 of the heddle eye 5 are provided with rounded portions 65 in order to avoid a sharp-edged contact of the warp thread 9 in the corners 55. In order not to unnecessarily narrow the guide section 25 due to the roundings 65, the radius of the roundings 65 is chosen to be many times smaller than the length 75 of the guide section 25.
    An electrochemical treatment method is used to smooth the guide section 25 and to shape the continuously rounded tip 35. Here the heald 1 was treated by electrolytic plasma polishing. For this purpose, the heald 1 or a heald assembly 100 (as shown for example in FIGS. 5 to 7) is first provided with a through opening 15, which can be done for example by a stamping process or by an etching process. In addition to the passage opening 15, further parts can also be formed, such as the receiving device 4.
    In the subsequent electrolytic plasma polishing, the workpiece, that is to say the heald 1 or the heald assembly 100, is poled as an anode and placed in an electrolytic bath into which a cathode protrudes. The electrolyte bath contains a suitable aqueous salt solution. When a correspondingly high voltage is applied between the anode and cathode, gas is formed. Due to the high voltage, the gas changes into the plasma state in the area of the anode or the workpiece. Under the action of the plasma, material is removed from the workpiece. The material removal can be influenced in particular by the duration of exposure to the plasma.
    A particular advantage of electrolytic plasma polishing is that burrs and punch breaks, which e.g. have arisen during the production of the through opening 15, and grooves or other unevenness in the surface of the heald 1 are removed. In addition, an optimally smoothed or polished surface is achieved. A surface of a guide section 25 treated in this way can have, for example, micro roughness of less than 0.01 micrometer.
    Another advantage is that, despite the extensive removal of grooves and surface defects, there is only very little material removal. This is particularly important in the case of healds 1, which are intended for the production of finer wire fabrics and therefore have only a very small thickness. Compared to electropolishing processes, electrolytic plasma polishing also has the advantage that no special cleaning of the workpieces is necessary and oily healds 1 can also be polished.
    The plasma-polished guide section 25 offers a very favorable surface smoothness for low-friction contact with the warp thread 9. In addition to the surface smoothing, the dome 35 in the
    CH 709 027 B1
    Guide section 25 continuously rounded. Since corners and edges in particular are removed, the tip 35 is rounded off transversely to the through opening 15. The tip 35 is thus continuously rounded in the direction from the front side surface 61 to the rear side surface 71 of the heddle shaft 3.
    Since the warp thread 9 also runs from the front side surface 61 to the rear side surface through the through opening 15, the warp thread 9 is therefore only in contact with the rounded regions of the guide section 25. Corners or edges in the guide section 25, which could significantly damage the warp thread 9, 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 often have an oval or round shape after polishing. This disadvantageously shortens the length 75 of the guide section 25. This is another advantage of electrolytic plasma polishing, since corners are rounded off, but the basic geometric shape is retained. Thus, the guide section 25 was on the one hand continuously rounded transversely to the through opening, but on the other hand the linear apex line 45 was retained during the plasma polishing.
    The corners 55 of the through opening 15 were also rounded off by the plasma polish, so that no sharp-edged corners 55 remain on which the Velcro thread 9 could rub. Correspondingly small radii of the roundings 65 in the corners 55 can be achieved by the plasma polishing.
    4 shows a detail of a heald 1 in a sectional, schematic side view. The guide section 25 here has a continuously rounded tip 35 which is parabolic. However, continuously rounded crests 35 with other shapes are also possible. For example, the shape of the tip 35 can be adjusted by the removal rate during the plasma polishing. The removal rate, in turn, can be adjusted by various parameters such as the salt concentration in the electrolyte bath, the pH value, the voltage or the current strength and also in particular by the exposure time of the plasma to the workpiece.
    5 shows a heald arrangement 100 with a heald 1 and a further heald 11. The heald arrangement 100 was produced from a starting body 6 shown here in broken lines by a photochemical etching process. The healds 1, 11 were not completely detached from the starting body 6, but remained on a region of the starting body 6 which serves as a carrying bracket 7.
    The healds 1, 11 are connected in one piece to one another in regions by way of the support bracket 7 designed as a receiving strip 17. In order to use the healds 1, 11 in a weaving machine, they can be detached from the support bracket 7 and separated. This can be done, for example, by breaking or cutting or by an eroding process, laser cutting or etching or the like.
    The heald arrangement 100 shown here is preferably only a section of a heald arrangement 100 with further healds 1, 11. The healds 1, 11 are preferably produced from a larger starting body 6, so that a large number of further healds 1, 11 are arranged on a correspondingly elongated receiving strip 17.
    The healds 1, 11 are received here with one of their end regions 31 on the support bracket 7 and are arranged essentially parallel to one another along their long sides 21, 41. For example, a further support bracket 7 can also be provided on the opposite end region 51.
    6 shows a further heald arrangement 100 which has a plurality of healds 1, 11 connected to one another. Here there are, for example, 37 healds 1, 11 which are connected in one piece via a support bracket 7 designed as a receiving frame 27.
    The heald assembly 100 shown here was produced from a sheet metal plate as the starting body 6. The contour features of the healds 1, 11 were worked out of the starting body 6 by photochemical etching, such as, for example, the receiving devices 4, the heald eyes 5 and the heald shafts 3. Such an etching process enables even complicated structures to be worked out reliably without the healds 1, 11 warp or burrs.
    The end regions 31, 51 of the healds 1, 11 are still connected in one piece to the starting body 6 after the etching, so that there is a receiving frame 27 surrounding the healds 1, 11. Such a receiving frame 27 has the advantage that on the one hand it does not require a lot of material from the starting body 6, but on the other hand securely surrounds the healds 1.11. This enables simple handling of the heddle arrangement 100.
    For example, the heald assembly 100 may be subjected to an electrochemical treatment process, such as e.g. undergo plasma polishing without having to handle each heald 1.11 individually. This enables the healds 1, 11 or the guide sections 25 to be processed very quickly and easily during plasma polishing.
    After the guide sections and possibly also other areas of the healds 1, 11 have been treated electrochemically, the healds can be detached from the receiving frame 27 for use in a weaving machine. For this purpose, for example, it is only necessary to cut along the end regions 31, 51 so that the connection between the heddle 1, 11 and the receiving frame 27 is separated.
    CH 709 027 B1 FIG. 7 shows a heald arrangement with healds 1, 11 arranged one behind the other. The healds 1.11 are integrally connected directly to one another at their end regions 31, 51. However, it is also possible for a support bracket 7 to be provided between the heddles 1, 11, so that they are connected indirectly.
    The heddle arrangement 100 shown here can be produced, for example, from a strip steel as the starting body 6. After the through openings 15 and any further contours of the healds 1, 11 have been formed, the heald assembly 100 can be brought back on a roll. For the electrochemical treatment of the guide sections 25, the roll can then be unrolled again and pulled through an electrolyte bath, for example for plasma polishing.
    The invention presented here shows a method for treating healds 1, which enable particularly wire-friendly weaving of finer wires.
    For this purpose, the guide sections 25 of the heddle eyes 5 are smoothed in particular by an electrolytic plasma polishing process and provided with a dome 35 which is continuously rounded transversely to the through opening 15.
    Also particularly advantageous is the heald assembly 100 presented here with at least partially prefabricated healds 1, which are particularly easy to handle as a single workpiece. Healds 1, which are accommodated in such a heald arrangement 100, can therefore be subjected to an electrochemical treatment process in a particularly simple and uncomplicated manner.
    Reference symbol list [0091]
    heald
    Flat steel heald
    heald rod
    recording device
    heald
    output body
    supporting bracket
    warp
    heald
    Through opening
    recording toolbar
    long side
    guide section
    mounting frame
    end
    knoll
    long side
    end
    crest line
    corner
    side surface
    rounding off
    side surface
    CH 709 027 B1
    length
    100 heald arrangement
    250 guide section
    500 strand eye
    515 through opening
    权利要求:
    Claims (15)
    [1]
    claims
    1. A method for treating a heald (1), in particular flat steel heald (2) for weaving wire fabrics, the heald having at least one heald shaft (3) and at least one receiving device (4) for receiving in a weaving machine and at least one heald eye (5 ) for receiving at least one warp thread (9), the heddle eye (5) being designed as at least one through opening (15) in the heddle shaft (3) and having at least one guide section (25) for the warp thread (9), characterized in that the heddle shaft (3) is treated at least in the region of the guide section (25) by at least one electrochemical treatment method, with the purpose of smoothing this guide section (25).
    [2]
    2. The method according to the preceding claim, wherein material of the strand shaft (3) is removed at least in the region of the guide section (25) by the electrochemical treatment method and in particular by electropolishing and / or plasma polishing.
    [3]
    3. The method according to any one of the preceding claims, wherein the treatment section of the guide section (25) is rounded at least transversely to the through opening (15).
    [4]
    4. The method according to any one of the preceding claims, wherein at least the through opening (15) is formed by at least one etching process.
    [5]
    5. The method according to any one of the preceding claims, wherein the heald (1) is made from a starting body (6) and remains at least partially connected to the starting body (6) at least during the electrochemical treatment process.
    [6]
    6. The method according to any one of the preceding claims, wherein the heald (1) is at least partially connected to at least one other heald (11) at least during the electrochemical treatment process.
    [7]
    7. The method according to claim 6, wherein the heald (1) is separated in time after the electrochemical treatment process.
    [8]
    8. heald (1), treated according to one of claims 3 to 7, wherein the heald (1) at least one heald shaft (3) and at least one receiving device (4) for receiving in a loom and at least one heald eye (5) for receiving at least of a warp thread (9), the heddle eye (5) being designed as at least one through opening (15) in the heddle shaft and having at least one guide section (25) for the warp thread (9), characterized in that the guide section (25) has at least one Has a continuously rounded dome (35) transverse to the through opening (15).
    [9]
    9. heald (1) according to claim 8, wherein the dome (35) along the through opening (15) has a substantially linear apex line (45).
    [10]
    10. heald (1) according to claim 8 or 9, wherein the through opening (15) has at least one corner (55) with a rounded portion (65) and wherein the radius of the rounded portion (65) is less than a tenth of the length (75) of the Guide section (25), wherein the length (75) of the guide section (25) extends along the through opening (15).
    [11]
    11. heald (1) according to any one of claims 8 to 10, wherein the through opening (15) is substantially rectangular, in particular square.
    [12]
    12. heald (1) according to one of claims 8 to 11, wherein the heald eye (5) has at least two opposite and substantially parallel guide sections (25, 250).
    [13]
    13. heald (1) according to one of claims 8 to 12, wherein at least two heald eyes (5, 500) are provided.
    [14]
    14. heald (1) according to any one of claims 8 to 13, which is substantially symmetrical in that it is reversible between at least two functionally identical operating positions.
    [15]
    15. heald (1) according to any one of claims 8 to 14, made of at least one metallic material and having a thickness of less than 200 microns.
    CH 709 027 B1
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    同族专利:
    公开号 | 公开日
    DE102013021028A1|2015-06-18|
    CH709027A2|2015-06-30|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE555774C|1931-01-14|1932-08-13|Carl Hofmann Fa|Middle eye insert eyelet for steel wire braiding|
    DD9534A3|1953-05-17|1955-04-07|Otto Jäger|Flachstahlwebelitzenmittelauge|
    JP5070629B2|2009-04-01|2012-11-14|トーカロ株式会社|Loom member and manufacturing method thereof|DE102016002561B4|2015-10-19|2018-10-31|Steintex Walter vom Stein KG|Method for producing healds and product produced therewith|
    法律状态:
    2015-09-15| PCOW| Change of address of patent owner(s)|Free format text: NEW ADDRESS: ROEGEN 6A, 23843 BAD OLDESLOE (DE) |
    优先权:
    申请号 | 申请日 | 专利标题
    DE102013021028.3A|DE102013021028A1|2013-12-17|2013-12-17|Heald and procedures|
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