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EP3573776B1 - Dispositif de pliage et procédé de production d'un treillis métallique - Google Patents

Dispositif de pliage et procédé de production d'un treillis métallique Download PDF

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Publication number
EP3573776B1
EP3573776B1 EP18701003.8A EP18701003A EP3573776B1 EP 3573776 B1 EP3573776 B1 EP 3573776B1 EP 18701003 A EP18701003 A EP 18701003A EP 3573776 B1 EP3573776 B1 EP 3573776B1
Authority
EP
European Patent Office
Prior art keywords
wire
bending
helix
legs
straightening
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP18701003.8A
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German (de)
English (en)
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EP3573776A1 (fr
EP3573776C0 (fr
Inventor
Corinna Wendeler-Göggelmann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Geobrugg AG
Original Assignee
Geobrugg AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
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Publication of EP3573776A1 publication Critical patent/EP3573776A1/fr
Application granted granted Critical
Publication of EP3573776B1 publication Critical patent/EP3573776B1/fr
Publication of EP3573776C0 publication Critical patent/EP3573776C0/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21F—WORKING OR PROCESSING OF METAL WIRE
    • B21F27/00—Making wire network, i.e. wire nets
    • B21F27/02—Making wire network, i.e. wire nets without additional connecting elements or material at crossings, e.g. connected by knitting
    • B21F27/04—Manufacturing on machines with rotating blades or formers
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F7/00—Devices affording protection against snow, sand drifts, side-wind effects, snowslides, avalanches or falling rocks; Anti-dazzle arrangements ; Sight-screens for roads, e.g. to mask accident site
    • E01F7/04—Devices affording protection against snowslides, avalanches or falling rocks, e.g. avalanche preventing structures, galleries

Definitions

  • the invention relates to a bending device for producing a wire mesh according to claim 1 and a method for producing a wire mesh according to claim 8.
  • Wire meshes made of high-strength steel wire are known from the prior art, which are manufactured on braiding machines with braiding knives. Due to the high bending stiffness of high-strength steel wires, such wire meshes have bulbous meshes that are formed by curved leg sections.
  • a method is also known by which a wire mesh mesh is reduced in thickness by compressing meshes using a plate press.
  • the object of the invention is, in particular, to provide a generic bending device with advantageous properties with regard to the production of resilient wire mesh.
  • the object is achieved according to the invention by the features of patent claims 1 and 8, while advantageous refinements and developments of the invention can be found in the subclaims.
  • the invention is based on a bending device for producing a wire mesh, in particular a safety net, which has a plurality of interwoven coils, of which at least one coil consists of at least one wire bundle, a wire strand, a wire rope and / or a Another longitudinal element is made with at least one wire comprising high-strength steel, with at least one bending unit, which has at least one guide screw and at least one braiding knife that can be rotated about an axis of rotation relative to the guide screw to produce a spiral blank with at least two curved legs and with at least one comprising the bending point connecting the curved legs by bending the longitudinal element, and with a braiding unit which is provided for braiding the coil blank into a pre-braid of the wire mesh.
  • the bending device has a straightening unit which is intended to at least partially straighten the curved legs.
  • the bending device according to the invention advantageously enables a simple and/or cost-effective and/or reliable and/or precise production of a resilient wire mesh.
  • precise production can be achieved with regard to the geometry of a wire mesh.
  • a high throughput can be achieved during production.
  • a high degree of flexibility can be achieved with regard to the geometries that can be achieved for a wire mesh and/or its meshes.
  • the production of a wire mesh with a high tensile strength across the coils of the wire mesh is made possible.
  • production can advantageously be adapted to the properties of a wire used.
  • the helix is made from a longitudinal element, namely an individual wire, a wire bundle, a wire strand, a wire rope and/or another longitudinal element which comprises at least the wire.
  • a “wire” should be understood to mean, in particular, an elongated and/or thin and/or at least machine-bendable and/or flexible body.
  • the wire advantageously has an at least essentially constant, in particular circular or elliptical, cross section along its longitudinal direction.
  • the wire is particularly advantageous designed as a round wire.
  • the wire is designed at least in sections or completely as a flat wire, a square wire, a polygonal wire and/or a profile wire.
  • the wire can be formed at least partially or completely from metal, in particular a metal alloy, and/or organic and/or inorganic plastic and/or a composite material and/or an inorganic non-metallic material and/or a ceramic material. It is conceivable, for example, that the wire is designed as a polymer wire or a plastic wire. In particular, the wire can be designed as a composite wire, for example as a metal-organic composite wire and/or a metal-inorganic composite wire and/or a metal-polymer composite wire and/or a metal-metal composite wire or the like.
  • the wire comprises at least two different materials, which are arranged relative to one another in particular according to a composite geometry and/or are at least partially mixed with one another.
  • the wire is advantageously designed as a metal wire, in particular as a steel wire, in particular as a stainless steel wire. If the coil has several wires, these are preferably identical. However, it is also conceivable that the coil has several wires that differ in particular in terms of their material and/or their diameter and/or their cross section.
  • the wire preferably has a particularly corrosion-resistant coating and/or sheathing, such as a zinc coating and/or an aluminum-zinc coating and/or a plastic coating and/or a PET coating and/or a metal oxide coating and/or a ceramic coating or the like .
  • a particularly corrosion-resistant coating and/or sheathing such as a zinc coating and/or an aluminum-zinc coating and/or a plastic coating and/or a PET coating and/or a metal oxide coating and/or a ceramic coating or the like .
  • the transverse extent of the coil is advantageously larger, in particular significantly larger than a diameter of the wire and/or than a diameter of the longitudinal element from which the coil is made.
  • the transverse extension is advantageously smaller, in particular considerably smaller than a length of the legs.
  • the transverse extension can be, for example, twice or three times or five times or ten times or 20 times as large as the diameter of the longitudinal element, with values in between or smaller values or larger values also being conceivable are.
  • the wire can have a diameter of, for example, about 1 mm, about 2 mm, about 3 mm, about 4 mm, about 5 mm, about 6 mm, about 7 mm or even more or even less or even a diameter in between have value. Larger, in particular significantly larger, diameters are also conceivable if the longitudinal element comprises several components, in particular several wires, such as in the case of a wire rope or a strand or a wire bundle or the like.
  • a “main extension plane” of an object is to be understood in particular as a plane which is parallel to a largest side surface of the smallest imaginary cuboid, which just completely encloses the object, and in particular runs through the center of the cuboid.
  • the wire mesh is used as a slope protection, as a safety fence, as a catch fence, as a rockfall protection net, as a barrier fence, as a fish farming net, as a predator protection net, as an enclosure fence, as a tunnel protection, as a slope mudslide protection, designed as a motorsport protective fence, as a road fence, as an avalanche protection or the like.
  • the wire mesh is designed to be flat.
  • the wire mesh is advantageously constructed regularly and/or periodically in at least one direction.
  • the wire mesh can be rolled up and/or unrolled, in particular about an axis which runs parallel to the main direction of extension of the helix.
  • a roll rolled up from the wire mesh can be rolled out in a direction perpendicular to the main direction of extension of the helix.
  • Wire mesh has a large number of meshes, in particular of identical design.
  • the spirals form the stitches particularly advantageously.
  • the helix is preferably designed like a spiral.
  • the helix is designed as a flattened spiral.
  • the helix advantageously has an at least substantially constant diameter and/or cross section along its course.
  • the coil and/or the longitudinal element and/or the wire has a circular cross section.
  • the helix has a plurality of legs, which are advantageously designed to be at least substantially identical or identical.
  • the coil is preferably formed from a single, in particular uninterrupted, wire.
  • the helix is preferably formed from a single longitudinal element, in particular only from the longitudinal element, for example from the wire or a strand or a wire rope or a wire bundle or the like.
  • “at least essentially identical” objects should be understood to mean, in particular, objects that are designed in such a way that they can each fulfill a common function and, apart from manufacturing tolerances, differ in their construction at most by individual elements that are insignificant for the common function are.
  • “at least substantially identical” should be understood to mean identical apart from manufacturing tolerances and/or within the scope of manufacturing technology possibilities, with identical objects also being understood to mean, in particular, objects that are symmetrical to one another.
  • an “at least substantially constant value” should be understood to mean, in particular, a value that increases by a maximum of 20%, advantageously by a maximum of 15%, particularly advantageously by a maximum of 10%, preferably by a maximum of 5% and particularly preferably by a maximum of 2%. varies.
  • the fact that an object has an “at least substantially constant cross-section” should be understood in particular to mean that for any first cross-section of the object along at least one direction and one Any second cross section of the object along the direction, a minimum area of a difference area, which is formed when the cross sections are superimposed, is a maximum of 20%, advantageously a maximum of 10% and particularly advantageously a maximum of 5% of the area of the larger of the two cross sections.
  • the helix has a longitudinal direction.
  • the longitudinal direction of the helix is arranged at least substantially parallel or parallel to a main extension direction of the helix.
  • the helix preferably has a longitudinal axis which runs parallel to the longitudinal direction of the helix.
  • the main plane of extension of the helix is arranged at least substantially parallel to the main plane of extension of the wire mesh, at least in a planar designed and/or planar rolled out state of the wire mesh, which can differ in particular from an installed state of the wire mesh.
  • a “main extension direction” of an object should be understood to mean, in particular, a direction which runs parallel to a longest edge of a smallest imaginary cuboid, which just completely encloses the object.
  • At least substantially parallel here is intended to mean, in particular, an alignment of a direction relative to a reference direction, in particular in a plane, with the direction having a deviation from the reference direction, in particular less than 8°, advantageously less than 5° and particularly advantageously smaller than 2°.
  • the wire mesh has a plurality or a multiplicity of, in particular, at least essentially identically designed or in particular identically designed coils. It is also conceivable that the wire mesh is formed from several different coils. In particular, it is conceivable that the wire mesh has a plurality or plurality of first coils and a plurality or plurality of second coils of different design than the first coils, which are in particular arranged alternately.
  • the spirals are advantageous together tied together.
  • adjacent coils are arranged such that their longitudinal directions run parallel.
  • one helix is braided and/or screwed into two adjacent helixes.
  • the wire mesh can be produced by screwing a helix into the pre-braid, screwing a further helix into this screwed-in helix, then screwing a helix into this further screwed-in helix, and so on.
  • the coils of the wire mesh have the same direction of rotation. Two coils are advantageously knotted together, in particular at a first of their ends and/or at a second of their ends opposite the first ends.
  • the wire is made entirely of high-strength steel, in particular apart from a coating.
  • the high-strength steel is spring steel.
  • the high-strength steel can be a steel suitable for wire ropes.
  • the wire has a tensile strength of at least 800 N mm -2 .
  • the wire advantageously has a tensile strength of at least 1000 N mm -2 , particularly advantageously of at least 1200 N mm -2 , preferably of at least 1400 N mm -2 and particularly preferably of at least 1600 N mm -2 , in particular a tensile strength of approximately 1770 N mm -2 or about 1960 N mm -2 .
  • the wire has an even higher tensile strength, for example a tensile strength of at least 2000 N mm -2 , or of at least 2200 N mm -2 , or even of at least 2400 N mm -2 .
  • a high load capacity in particular a high tensile strength and/or a high rigidity across the braid, can be achieved.
  • the braiding knife is at least partially arranged in the guide screw.
  • the guide screw forms at least one guide lane and/or a guide link for the spiral blank.
  • the bending unit is advantageously designed to bend two wires at the same time bend, which are wound around the braiding knife in particular parallel to one another and/or are bent around the braiding knife.
  • the bending unit is intended to produce two coils at the same time to weave together by bending.
  • the guide screw advantageously has a further guide lane for a further spiral blank.
  • the legs of the coil blank are curved out of a plane parallel to the main extension plane of the coil.
  • the legs of the spiral blank are particularly preferably curved convexly.
  • the coil blank is bulbous due to the curved legs.
  • the spiral blank is advantageously bent by less than 180° in an area of the bending point.
  • the bending point and half of the curved leg adjoining the bending point together form a bend of 180°.
  • the pre-braid advantageously comprises a large number of interwoven coils and/or coil blanks.
  • the braiding unit is intended to braid the coil blank into the pre-braid along its longitudinal direction, in particular to screw it in.
  • the coil blank is advantageously cut off in accordance with a width of the pre-braid and/or a width of the wire mesh and, in particular, advantageously knotted with at least one advantageously adjacent coil at opposite ends of the relevant coils.
  • the coil blank After being braided in and cut to length, the coil blank preferably forms a coil of the wire mesh.
  • an “at least partial straightening” of an object is intended to mean, in particular, a deformation that at least approximates a course of the object to a linear course, in particular compared to an undeformed state of the object.
  • the straightening unit is advantageously intended to straighten the curved legs.
  • the straightening unit is particularly advantageously intended to provide the legs with a straight course.
  • the legs adjacent to the bending point run in parallel planes after straightening.
  • the straightening unit is intended to provide a bending angle to enlarge the bending point.
  • the straightening unit is particularly preferably intended to provide the bending point with a bending angle of 180°.
  • the spiral blank is advantageously bent by 180° in the area of the bending point.
  • the straightening unit is intended to straighten the curved legs.
  • the straightening unit is provided for compressing the coil blank in a pressing direction perpendicular to the axis of rotation and in particular perpendicular to the longitudinal direction of the coil blank.
  • the straightening unit is advantageously provided for bending the curved legs towards the axis of rotation.
  • the straightening unit is intended to bend bulging areas of the curved legs towards one another. In this way, curvatures that occur when a helix is bent can advantageously be subsequently reduced and/or straightened.
  • the compression includes over-pressing and/or over-bending of the curved legs.
  • a distance between the legs, in particular perpendicular to the axis of rotation is smaller during overbending and/or overpressing and/or in an overpressed and/or overbent state of the legs than in a finished state of the corresponding helix and/or the wire mesh.
  • the curved legs are advantageously overpressed and/or overbent by at least a few millimeters, with an overpressure distance and/or an overbending distance depending in particular on a bending stiffness and/or condition of the wire and/or on a geometry of the coil blank.
  • an over-pressure section and/or an over-bending section of the straightening unit is adjustable and/or adaptable to a geometry of the coil blank and/or to a condition of the wire.
  • the straightening unit is intended to: To overbend and/or overpress the legs to such an extent that the legs remain in place after the bending and subsequent bending partial springbacks have a straight course.
  • a resilient wire can advantageously be precisely straightened in an area of the legs of a helix of a wire mesh.
  • the straightening unit is mounted so that it can rotate about the axis of rotation.
  • the bending device preferably has a common drive unit for the braiding knife and a rotation of the straightening unit.
  • the straightening unit advantageously rotates in the same direction as the braiding knife when bending the wire and/or during straightening.
  • a high production speed can advantageously be achieved.
  • this can advantageously largely eliminate the need for braking and accelerating moving parts during ongoing operation.
  • a rotation of the braiding knife and a rotation of the straightening unit are synchronized.
  • a movement of the straightening unit is advantageously coupled, in particular mechanically, to a movement of the braiding knife.
  • the bending device has a control unit and/or a regulating unit that synchronizes a rotation of the straightening unit with the rotation of the braiding knife.
  • a position of the straightening unit, in particular its center of gravity is constant relative to the braiding knife during the rotation of the braiding knife and during the rotation of the straightening unit.
  • a position of the straightening unit, in particular its center of gravity is not twisted relative to the coil blank.
  • the coil blank moves along its longitudinal direction during its production relative to the straightening unit, with in particular an orientation of the coil blank relative to the straightening unit being constant.
  • a straightening unit can advantageously be carried precisely. Furthermore, this allows curved legs to be bent over in a controlled and/or reliable manner.
  • the straightening unit has at least one pressing element that is movable perpendicular to the longitudinal direction of the coil blank.
  • the pressing element is mounted movably perpendicular to the axis of rotation.
  • the pressing element is advantageously provided for pressing the coil blank, in particular at least one curved leg.
  • the pressing element can be moved towards the axis of rotation for straightening and/or can be moved away from the axis of rotation after straightening.
  • a movement of the pressing element in particular towards the axis of rotation and/or away from the axis of rotation, is synchronized with the rotation of the straightening unit and/or with the rotation of the braiding knife and is advantageously coupled to this.
  • a pressing section in particular its length, over which the pressing element moves relative to the axis of rotation during straightening, is adjustable.
  • a degree of overpressing and/or overbending can be adjusted by adjusting the pressing section.
  • the pressing section defines the over-bending section and/or the over-pressing section.
  • the pressing element advantageously has a pressing surface which is pressed against at least one curved leg during straightening.
  • the pressing surface can be flat or curved, in particular bulging.
  • the pressing surface is curved in such a way that different areas of a curved leg are bent and/or pressed to different degrees, in particular over-bent and/or over-pressed.
  • the straightening unit preferably has at least one further pressing element, which is in particular arranged opposite the pressing element.
  • the pressing element is movable relative to the further pressing element.
  • the further pressing element is particularly preferably movable perpendicular to the axis of rotation.
  • the pressing element and the further pressing element can be moved towards one another.
  • the further pressing element is at least essentially identical to the pressing element.
  • the further pressing element is designed to be mirror-symmetrical to the pressing element, in particular with respect to a plane in which the axis of rotation runs.
  • the further pressing element is designed as a counter-holding element, with the pressing element in particular pressing the coil blank at least partially against the further pressing element during straightening. In this way, a high level of mechanical reliability can advantageously be achieved. Furthermore, straightening can be carried out quickly and reliably.
  • the pressing element is arranged in an output region of the bending unit and/or the braiding knife.
  • the pressing element is arranged at a distance of at most 1 m, advantageously at most 0.5 m and particularly advantageously at most 0.3 m from the bending unit and/or from the braiding knife.
  • the straightening is preferably carried out before the spiral blank is braided into the pre-braid.
  • the straightening unit is arranged between the bending unit and the braiding unit. After being bent in the bending unit, the coil blank advantageously passes through the straightening unit and then the braiding unit.
  • the straightening unit is preferably intended to straighten only a part of the coil blank at the same time, in particular only a few legs and bending points of the coil, advantageously at most or exactly ten adjacent legs, particularly advantageously at most or exactly eight adjacent legs, preferably at most or exactly six adjacent legs, preferably at most or exactly four adjacent legs and advantageously at most or exactly two adjacent legs and in particular corresponding bending points connecting the legs and/or adjacent to the legs.
  • a compact design of a bending device can advantageously be achieved. Furthermore, this allows uniform straightening to be achieved during ongoing operation.
  • the pressing element is arranged in an area of the braiding unit.
  • the straightening unit can be intended to straighten the coil blank and/or its Straighten the legs after weaving the spiral blank into the pre-braid.
  • the pressing element can advantageously be provided for pressing several, in particular adjacent, coil blanks at the same time.
  • the straightening unit is arranged immobile and/or stationary relative to the braiding unit.
  • the pre-braid is pressed in sections between the pressing element and the further pressing element.
  • the pressing element can be mounted movably perpendicular to the pre-braid. This can advantageously achieve a high level of flexibility with regard to independent adaptation of different work steps.
  • the pressing element has at least one guide element.
  • the guide element is intended to guide and/or fix the coil blank at least partially and/or in sections, in particular during a feed and/or during pressing.
  • the guide element can be designed, for example, as a groove or a rib. It is also conceivable that the guide element is designed as a bolt.
  • the pressing element can have a plurality of, in particular, different guide elements, for example a plurality of bolts and/or pins and/or grooves and/or ribs.
  • a length of the pressing element defines a maximum length of the coil.
  • the pressing element can be intended to straighten the entire helix at the same time.
  • the pressing element can advantageously extend parallel to the coil blank in its braided state. It is conceivable that a width of the pressing element exceeds a width of the pre-braid and/or a length of the coil blank.
  • a main extension direction of the pressing element can be parallel to a width direction of the pre-braid and/or to be arranged in the longitudinal direction of the coil blank in its braided state. This can advantageously achieve a high level of efficiency.
  • the bending unit and the straightening unit are intended for processing wire with a tensile strength of at least 800 N mm -2 .
  • the bending unit is intended to process the wire. This can advantageously enable the production of a tensile and/or resilient wire mesh.
  • the straightening unit is provided for heating and/or cooling the coil blank, in particular during straightening.
  • the pressing element and/or the further pressing element is designed to be heatable in order to be able to carry out the straightening at an elevated temperature.
  • the coil blank is cooled directly or indirectly during straightening.
  • the invention further relates to a method for producing a wire mesh, in particular a safety net, which has a plurality of interwoven helixes, of which at least one helix consists of at least one individual wire, a wire bundle, a wire strand, a wire rope and/or another longitudinal element with at least one, a wire comprising high-strength steel is manufactured, in particular at least by means of the bending device, wherein a coil blank with at least two curved legs and with at least one bending point connecting the legs is manufactured by bending the longitudinal element and wherein the coil blank is braided into a pre-braid of the wire mesh.
  • the curved legs be at least partially straightened.
  • the method according to the invention advantageously enables a simple and/or cost-effective and/or reliable and/or precise production of a resilient wire mesh.
  • a geometry of a wire mesh can be manufactured precisely.
  • a high throughput can be achieved during production.
  • a high degree of flexibility can be achieved with regard to the realizable geometries of a wire mesh and/or its meshes.
  • the production of a wire mesh with a high tensile strength across the coils of the wire mesh is made possible.
  • production can advantageously be adapted to the properties of the wire used.
  • the curved legs are straightened.
  • the process is intended to produce the wire mesh.
  • the method comprises at least one method step which is intended to produce and/or implement at least one of the features of the wire mesh.
  • the term “intended” is intended to mean, in particular, specifically programmed, designed and/or equipped.
  • the fact that an object is intended for a specific function should be understood in particular to mean that the object fulfills and/or executes this specific function in at least one application and/or operating state.
  • the fact that a method is “intended” for a purpose should be understood in particular to mean that the method includes at least one method step that is specifically aimed at the purpose and/or that the method is specifically aimed at the purpose and/or that the method serves to fulfill the purpose and is at least partially optimized for this fulfillment.
  • a method step is “intended” for a purpose should be understood in particular to mean that the method step is specifically aimed at the purpose and/or that the method step is specifically aimed at the purpose and/or that the method step serves to fulfill the purpose and is at least partially optimized for this fulfillment.
  • the coil blank is pressed at least in sections before being braided into the pre-braid and in particular after bending the coil blank in order to to straighten a curved thigh.
  • a few legs of the coil blank are straightened at the same time, advantageously immediately after bending the coil blank, in particular by means of the bending unit.
  • the straightening of the curved legs of the coil blank is advantageously carried out synchronously with the bending of the coil blank. In this way, a high level of precision can advantageously be achieved during straightening.
  • the coil blank is pressed at least in sections after being braided into the pre-braid in order to straighten the curved legs.
  • the entire coil blank is advantageously pressed and/or straightened at the same time. This makes it possible to advantageously use a low pressing speed with a high throughput at the same time.
  • the curved legs are bent over and/or overpressed for straightening.
  • the curved legs are bent over in such a way that the legs follow a straight course after the wire springs back.
  • the curved legs are bent and/or overpressed in such a way that the bending point describes a bend of 180° after the wire springs back and/or that the straightened legs run in parallel planes. In this way, straightening can advantageously be adapted to the properties of a wire used.
  • the bending device according to the invention and the method according to the invention should not be limited to the applications and embodiments described above.
  • the bending device according to the invention and the method according to the invention can fulfill one Functionality described herein has a number of individual elements and/or components and/or units and/or method steps that deviates from a number mentioned herein.
  • the Figure 1 shows part of a wire mesh 10a in a schematic front view.
  • the wire mesh 10a is designed as a safety net.
  • the wire mesh 10a shown can be used, for example, as a slope protection, avalanche protection net, safety fence or the like.
  • the wire mesh 10a has a plurality of interwoven coils 12a, 14a, in particular a coil 12a and a further coil 14a.
  • the wire mesh 10a has a large number of identically designed coils 12a, 14a, which are screwed into one another and form the wire mesh 10a.
  • the Figure 2 shows part of the helix 12a of the wire mesh 10a in a perspective view.
  • the Figure 3 shows another part of the wire mesh 10a in a schematic front view.
  • the coil 12a is made from a longitudinal element 16a with a wire 18a.
  • the longitudinal element is designed as a single wire.
  • the longitudinal element 16a is the wire 18a.
  • the wire 18a has a corrosion-resistant coating.
  • a longitudinal element comprises a plurality of wires and/or other elements.
  • a longitudinal element can be designed as a wire rope, a wire bundle, a wire strand or the like.
  • these can be transferred accordingly to the case of other longitudinal elements.
  • a strand or a wire bundle or another longitudinal element can be bent into a helix and helices made of such longitudinal elements can be connected accordingly to form a wire mesh.
  • the wire 18a is bent into the coil 12a.
  • the helix 12a is made in one piece.
  • the coil 12a is made from a single piece of wire.
  • the wire 18a has a diameter of 3 mm.
  • the wire 18a is at least partially made of high-strength steel.
  • the wire 18a is designed as a high-strength steel wire.
  • the wire 18a has a tensile strength of at least 800 N mm -2 .
  • the wire 18a has a tensile strength of approximately 1770 N mm -2 .
  • other tensile strengths are also conceivable, in particular tensile strengths of more than 2200 N mm -2 .
  • a wire is made of extremely high-strength steel. It is also conceivable that a wire has a different diameter, such as less than 1 mm or about 1 mm or about 2 mm or about 4 mm or about 5 mm or about 6 mm or an even larger diameter. As mentioned above, it is conceivable that a wire has different materials and is in particular designed as a composite wire.
  • the helix 12a and the further helix 14a are identical.
  • the helix 12a is described in more detail below as an example.
  • a wire mesh to comprise at least one first coil and at least one second coil designed differently from the first coil.
  • the helix 12a has a first leg 20a, a second leg 22a and a connection connecting the first leg 20a and the second leg 22a Bending point 24a.
  • the helix 12a has a plurality of first legs 20a, a plurality of second legs 22a and a plurality of bending points 24a, not all of which are provided with reference numbers for reasons of clarity.
  • the first legs 20a are at least essentially identical to one another.
  • the second legs 22a are at least essentially identical to one another.
  • the bending points 24a are at least essentially identical to one another.
  • the first leg 20a, the second leg 22a and the bending point 24a are described in more detail below by way of example. Of course, it is conceivable that a wire mesh has different first legs and/or different second legs and/or different bending points.
  • the helix 12a has a longitudinal direction 28a.
  • the helix 12a has a longitudinal axis 109a which runs parallel to the longitudinal direction 28a.
  • the longitudinal direction 28a corresponds to a main direction of extension of the helix 12a.
  • the first leg 20a runs with a first pitch angle 26a with respect to the longitudinal direction 28a of the helix 12a.
  • the frontal view is a view in the frontal direction 54a.
  • the first leg 20a has a longitudinal axis 110a.
  • the longitudinal axis 110a of the first leg 20a runs parallel to a main extension direction 112a of the first leg 20a.
  • the helix 12a is shown in the frontal view.
  • the longitudinal axis 109a of the helix 12a and the longitudinal axis 110a of the first leg 20a include the first pitch angle 26a.
  • the first leg 20a has a length of approximately 65 mm.
  • the second leg 22a has a length of approximately 65 mm.
  • the first pitch angle 26a is approximately 60° in the present case.
  • other values for a first pitch angle are also conceivable, for example 30°, 45°, 75° or smaller, larger or values in between.
  • FIG 4 shows a part of the helix 12a, which includes the first leg 20a, the second leg 22a and the bending point 24a, in different views.
  • Figure 4a shows a view in the longitudinal direction 28a of the helix 12a.
  • Figure 4b shows the first leg 20a, the second leg 22a and the bending point 24a in a transverse view perpendicular to the longitudinal direction 28a of the helix 12a and in the main plane of extension of the helix 12a.
  • Figure 4c shows a view in the frontal direction 54a.
  • Figure 4d shows a perspective view.
  • the bending point 24a runs at least in sections with a second pitch angle 30a that is different from the first pitch angle 26a with respect to the longitudinal direction 28a of the helix 12a.
  • the bending point 24a has a longitudinal axis 114a.
  • the longitudinal axis 114a of the bending point 24a and the longitudinal axis 109a of the helix 12a include the second pitch angle 30a.
  • the second pitch angle 30a deviates from the first pitch angle 26a by at least 5°.
  • the second pitch angle 30a has a value between 25° and 65°.
  • the first pitch angle 26a is greater than 45°.
  • the first pitch angle 26a is approximately 60°.
  • the second pitch angle 30a is approximately 45°.
  • the second pitch angle 30a is smaller than the first pitch angle 26a.
  • first pitch angle and a second pitch angle are identical.
  • a first pitch angle and a second pitch angle can each be at least substantially or exactly 45°.
  • Other values are also conceivable, for example 30° or 35° or 40° or 50° or 55° or 60° or 65° or 70° or other, in particular even larger or even smaller, values.
  • the person skilled in the art will select values for a first pitch angle and a second pitch angle, particularly depending on a requirement profile for a corresponding wire mesh.
  • the bending point 24a When viewed transversely, the bending point 24a follows an at least approximately straight course, at least in sections. In the present case, a large part of the bending point 24a follows a straight course when viewed transversely.
  • the helix 12a When viewed transversely, the helix 12a follows a stepped course, at least in sections.
  • the stepped course is diagonally stepped.
  • the first leg 20a follows a straight course, at least in sections. In the present case, the first leg 20a follows a straight course.
  • the second leg 22a follows a straight course, at least in sections. In the present case, the second leg 22a follows a straight course.
  • the first leg 20a and/or the second leg 22a are free of a curvature and/or a bend and/or a kink.
  • the bending point 24a comprises a course which describes a bend of 180° when viewed longitudinally parallel to the longitudinal direction 28a of the helix 12a. In the Figure 4a the helix 12a is shown in the longitudinal view.
  • the first leg 20a runs at least in sections, in particular completely, in a first plane and the second leg 22a runs at least in sections, in particular completely, in a second plane parallel to the first plane. When viewed longitudinally, the first leg 20a runs parallel to the second leg 22a.
  • the further helix 14a has a further bending point 32a.
  • the bending point 24a and the further bending point 32a are connected.
  • the bending point 24a and the further bending point 32a form a connection point of the helix 12a and the further helix 14a.
  • the Figure 5 shows a part of the wire mesh 10a, which includes the bending point 24a and the further bending point 32a, in different views.
  • Figure 5a shows a view in the longitudinal direction 28a of the helix 12a.
  • Figure 5b shows the part of the wire mesh 10a in a transverse view perpendicular to the longitudinal direction 28a of the helix 12a in the main extension plane of the helix 12a.
  • Figure 5c shows a view in the frontal direction 54a.
  • Figure 5d shows a perspective view.
  • the helix 12a and the further helix 14a intersect at least substantially perpendicularly in a region of the further bending point 32a.
  • the bending point 24a and the further bending point 32a enclose a crossing angle 118a.
  • the crossing angle 118a is dependent on the second pitch angle 30a and a correspondingly defined further second pitch angle of the further helix 14a. In the present case, the crossing angle 118a is 90°.
  • a second pitch angle of 45° is also advantageously selected for other first pitch angles, so that correspondingly designed spirals cross each other perpendicularly at connection points and these connection points advantageously have a high mechanical load capacity.
  • crossing angles other than 90° are also conceivable, for example with an amount of 45° or 60° or 120° or 145° or a larger, smaller or intermediate amount. The person skilled in the art will select a crossing angle appropriately, in particular depending on a requirement profile for a corresponding wire mesh.
  • the Figure 6 shows a bending device 200a for producing the wire mesh 10a.
  • the Figure 7 shows part of the bending device 200a in a schematic side view.
  • the Figure 8 shows the part of the bending device 200a in a schematic top view.
  • the bending device 200a is intended to produce the wire mesh 10a. If a longitudinal element that is not designed as a single wire, such as a strand and/or a wire bundle or the like, is used instead of the wire 18a, this is processed and/or guided and/or bent and/or straightened, etc. in the same way as the wire 18a. However, in the following the case is described that the longitudinal element 16a is designed as the wire 18a.
  • the bending device 200a has a bending unit 202a for producing a coil blank 210a.
  • the bending unit 202a comprises a guide screw 204a and a braiding knife 208a which is rotatable relative to the guide screw 204a about a rotation axis 206a.
  • the bending unit 202a is intended for producing the coil blank 210a.
  • the bending unit 202a is intended to produce the coil blank 210a by bending the wire 18a.
  • the coil blank 210a includes two curved legs 212a, 214a and a bending point 216a connecting the curved legs 212a, 214a.
  • the coil blank 210a comprises a plurality of curved legs 212a, 214a, not all of which are provided with reference numbers for reasons of clarity.
  • the wire 18a is bent during bending around the braiding knife 208a to form the coil blank 210a.
  • the coil blank 210a is produced with curved legs 212a, 214a.
  • the legs 212a, 214a are provided with a curvature when bent around the braiding knife 208a, in particular due to the high tensile strength of the wire 18a.
  • the wire 18a is bent into the coil blank 210a when the braiding knife 208a rotates about the axis of rotation 206a.
  • the bending unit 202a is intended to produce, at the same time as the coil blank 210a, a further coil blank 236a, in particular at least essentially identical to the coil blank 210a.
  • the further coil blank 236a is made from a further wire 238a, which in particular is at least essentially identical to the wire 18a.
  • the wire 18a and the further wire 238a are wound around the braiding knife 208a at a distance from one another.
  • the wire 18a and the further wire 238a are bent simultaneously when the braiding knife 208a rotates about the axis of rotation 206a.
  • the bending device 200a includes a braiding unit 218a, which is intended for braiding the coil blank 210a into a pre-braid 220a of the wire mesh 10a.
  • the braiding unit 218a is intended to produce the wire mesh 10a.
  • the Spiral blank 210a is cut to length corresponding to a width of the pre-braid 220a or the wire mesh 10a.
  • the ends of the coil blank 210a are knotted to adjacent coils and/or coil blanks and then forms a coil of the pre-braid 220a.
  • the pre-braid 220a is advanced in a feed direction 240a.
  • a next coil blank can then be braided into the then expanded pre-braid 220a. After adding a predetermined number of coils to the pre-braid 220a, this forms the wire mesh 10a.
  • intermediate post-processing steps such as coating and/or painting and/or adding further braid elements and/or adding edge elements or the like are conceivable.
  • the bending device 200a has a straightening unit 222a, which is provided for at least partially straightening the curved legs 212a, 214a.
  • the straightening unit 222a is intended to straighten the curved legs 212a, 214a.
  • the straightening unit 222a is intended to bend and/or rework and/or straighten the curved legs 212a, 214a and the bending point 216a of the coil blank 210a in such a way that they correspond to the geometry of the legs 20a, 22a and the bending point 24a of the coil 12a are shaped.
  • a mesh made of unstraightened coil blanks would have bulbous meshes and a multiply curved and/or curved front and back, whereas the wire mesh 10a made of straightened coil blanks 210a has legs 20a, 22a running in parallel planes and correspondingly a parallel front and back.
  • the straightening unit 222a is intended to compress the coil blank 210a in a pressing direction 224a perpendicular to the axis of rotation 206a.
  • the pressing direction 224a runs perpendicular to a longitudinal direction 226a of the coil blank 210a.
  • the straightening unit 222a is used to press the coil blank 210a by two opposite sides 242a, 244a provided.
  • a transverse extension 44a of the coil blank 210a is reduced perpendicular to the longitudinal direction 226a of the coil blank 210a.
  • an operating state of the bending device 200a is shown shortly before the curved legs 212a, 214a are straightened.
  • the curved legs 212a, 214a are introduced into the straightening unit 222a and straightened there by compressing the coil blank 210a.
  • Compressing the coil blank 210a involves over-pressing and/or over-bending the curved legs 212a, 214a.
  • the curved legs 212a, 214a are pressed towards each other.
  • the curved legs 212a are pressed towards the axis of rotation 206a.
  • the curved legs 212a, 214a are each overpressed by an overpressure distance 246a, 248a.
  • the coil blank 210a After the coil blank 210a has been compressed, it partially springs back, in particular due to the high tensile strength of the wire 18a.
  • the coil blank 210a In order to realize the geometry of the coil 12a described above, the coil blank 210a must be temporarily pressed and/or compressed further than this geometry, in particular in order to compensate for the mentioned springback of the coil blank 210a after compression.
  • the straightening unit 222a is rotatably mounted about the rotation axis 206a. In the present case, the straightening unit 222a is rotated during operation of the bending device 200a. The straightening unit 222a is rotated in the same direction as the braiding knife 208a during operation. The pressing direction 224a rotates in accordance with the rotation of the straightening unit 222a.
  • the rotation of the braiding knife 208a and a rotation of the straightening unit 222a are synchronized.
  • the straightening unit 222a is mechanically coupled to the braiding knife 208a, so that the straightening unit 222a rotates together with the braiding knife 208a can be moved.
  • the rotation of the straightening unit 222a and a rotation of the coil blank 210a about the rotation axis 206a are synchronized.
  • the straightening unit 222a is not twisted relative to the braiding knife 208a and/or relative to the coil blank 210a.
  • the pressing direction 224a rotates in such a way that its orientation relative to the coil blank 210a is constant or at least approximately constant.
  • the pressing direction 224a is not twisted relative to the coil blank 210a.
  • the straightening unit 222a has a pressing element 228a that is movable perpendicular to the longitudinal direction 226a of the coil blank 210a.
  • the pressing element 228a is moved in the pressing direction 224a towards the rotation axis 206a and/or towards the coil blank 210a.
  • the pressing element 228a presses against a curved leg to be straightened.
  • the pressing element 228a is moved away from the axis of rotation 206a and/or from the coil blank 210a counter to the pressing direction 224a.
  • a movement of the pressing element 228a in the pressing direction 224a and counter to the pressing direction 224a is coupled to the rotation of the straightening unit 222a and/or to the rotation of the braiding knife 208a.
  • the pressing element 228b is dimensioned such that when compressed it straightens several legs at the same time, in the case shown three legs.
  • the coil blank 210a and the further coil blank 236a are straightened at the same time. Of course, it is conceivable that only one coil blank is bent and straightened at the same time.
  • a pressing element is dimensioned differently and, for example, when compressed, only presses against one or two legs at the same time, or also against a larger number of legs, for example four or five or six or ten or 20 or 30 or even more.
  • a number of simultaneously pressed legs can have a geometry of a spiral blank, for example one leg length and/or one Geometry of a bending point and / or depend on a first pitch angle and / or on a second pitch angle.
  • the pressing element 228a has a pressing surface 260a, which is pressed against the coil blank 210a during compression.
  • the pressing surface 260a is in the Figure 8 just shown. It is also conceivable that a pressing surface is designed to be particularly convexly curved and/or bulging.
  • a type of overpressing and/or a type of overbending can be defined by a geometry of a pressing surface.
  • a pressing element can be provided to overpress and/or overbend curved legs to different degrees at different locations on the legs, for example to a greater extent in a central region of the legs.
  • the straightening unit 222a has a further pressing element 230a.
  • the further pressing element 230a is designed to be mirror-symmetrical to the pressing element 228a, in particular with respect to a plane of symmetry in which the axis of rotation 206a runs.
  • the further pressing element 230a is designed identically to the pressing element 228a.
  • the further pressing element 230a is movable perpendicular to the axis of rotation 206a.
  • a movement of the further pressing element 230a is coupled to a movement of the pressing element 228a.
  • the pressing element 228a and the further pressing element 230a each move in opposite directions during operation.
  • the pressing element 228a and the further pressing element 230a press the coil blank 210a during compression from the opposite sides 242a, 244a.
  • the pressing element 228a is arranged in an output region 232a of the bending unit 202a.
  • the pressing element 228a is arranged at a distance of approximately 10 cm from the braiding knife 208a.
  • the bent coil blank 210a exits the bending unit 202a and enters the straightening unit 222a.
  • the coil blank 210a runs into the braiding unit 218a and is braided there into the pre-braid 220a.
  • the coil blank 210a is braided into the pre-braid 220a in a straightened state.
  • the further pressing element 230a is arranged in the output region 232a of the bending unit 202a.
  • the bending unit 202a is intended for processing wire with a tensile strength of at least 800 N mm -2 .
  • the straightening unit 222a is intended for processing wire with a tensile strength of at least 800 N mm -2 .
  • the bending unit 202a and the straightening unit 222a are intended for processing the wire 18a.
  • the Figure 9 shows a schematic flow diagram of a method for producing the wire mesh 10a.
  • the wire mesh 10a is produced using the bending device 200a.
  • the coil blank 210a is manufactured by bending the wire 18a using the bending device 200a. After being bent, the coil blank 210a has curved legs 212a, 214a.
  • a second method step 252a the curved legs 212a, 214a are straightened.
  • the second method step 252a is carried out after the first method step 250a.
  • a third method step 254a the coil blank 210a is braided into the pre-braid 220a of the wire mesh 10a.
  • the third method step 254a is carried out after the second method step 252a.
  • the coil blank 210a is pressed at least in sections before being braided into the pre-braid 220a in order to straighten the curved legs 212a, 214a.
  • the curved legs 212a, 214a become the straighteners overbent and/or overpressed.
  • the legs 212a, 214a are closer to a longitudinal axis 256a of the coil blank 210a than in the finished state, in which the legs 212a, 214a have a geometry corresponding to the geometry of the coil 12a of the wire mesh 10a.
  • the longitudinal axis 256a of the coil blank 210a runs parallel to its longitudinal direction 226a.
  • the longitudinal axis 256a of the coil blank 210a corresponds to the axis of rotation 206a.
  • the longitudinal axis 256a of the coil blank 210a runs through a center of gravity of the coil blank 210a.
  • the Figure 10 shows a part of another bending device 200b for producing another wire mesh 10b in a schematic representation.
  • the further wire mesh 10b has a large number of interwoven coils 12b, which form square meshes.
  • the coils 12b have straight legs 20b, 22b which run in parallel planes.
  • the legs 20b, 22b are connected via bending points 24b, the course of which describes a bend of 180°.
  • the coils 12b are knotted at their ends 258b in the finished additional wire mesh 10b.
  • the further bending device 200b has a linking unit, not shown, for knotting the coils 12b.
  • the further bending device 200b has a bending unit, not shown, which is analogous to the bending unit 202a of the exemplary embodiment Figures 1 to 9 to a production of a coil blank 210b with curved legs 212b, 214b from a longitudinal element 16b with at least one wire 18b made of high-strength steel is provided.
  • the longitudinal element 16b is designed, for example, as a stranded wire made of several twisted wires 18b.
  • the longitudinal element 16b is designed as a single wire or a wire bundle or the like.
  • the curved legs 212b, 214b are connected via a bending point 216b.
  • the bending device 200b has a braiding unit 218b, which is intended for braiding the coil blank 210b into the pre-braid 220b.
  • the further bending device 200b has a straightening unit 222b, which is provided for at least partially straightening the curved legs 212b, 214b.
  • the straightening unit 222b is intended to straighten the curved legs 212b, 214b.
  • the straightening unit 222b is intended to bend the coil blank 210b in such a way that its geometry corresponds to a geometry of the coils 12b of the finished further wire mesh 10b.
  • the straightening unit 222b is intended to compress the coil blank 210b. Compressing includes over-pressing and/or over-bending the curved legs 212b, 214b. The curved legs 212b, 214b are compressed further during compression than corresponds to a target geometry in order to compensate for springback of the wire 18b after compression.
  • the straightening unit 222b has a pressing element 228b that is movable perpendicular to a longitudinal direction 226b of the coil blank 210b.
  • the pressing element 228b is arranged in an area 234b of the braiding unit 218b.
  • the pressing element 228b defines a maximum length of the coil 12b.
  • the pressing element 228b is intended to simultaneously straighten the coil blank 210b over its entire length.
  • a length of the pressing element 228b corresponds to a maximum length of a coil blank 210b, which can be straightened using the straightening unit 222b.
  • the straightening unit 222b has a further pressing element 230b.
  • the pressing element 228b and the further pressing element 230b are arranged opposite one another.
  • the pressing element 228b can be moved towards the further pressing element 230b in order to compress it.
  • the pre-braid 220b is arranged between the pressing element 228b and the further pressing element 230b.
  • the further pressing element 230b forms a counter-holding element which, when the coil blank 210b is pressed by means of the pressing element 228b, supports the coil blank 210b from a side opposite the pressing element 228b.
  • the pre-braid 220b is advanced, it is pushed through the straightening unit 222b.
  • the pre-braid 220b is pushed over the further pressing element 230b during the feed.
  • the Figure 11 shows a schematic flow diagram of a method for producing the further wire mesh 10b.
  • the further wire mesh 10b is produced using the further bending device 200b.
  • the coil blank 210b is manufactured by bending the wire 18b using the bending device 200b. After being bent, the coil blank 210b has curved legs 212b, 214b.
  • a second method step 252b the coil blank 210b is braided into the pre-braid 220b of the wire mesh 10b.
  • the second method step 252b is carried out after the first method step 250b.
  • a third method step 254b the coil blank 210b is straightened. After being braided into the pre-braid 220b, the coil blank 210b is pressed at least in sections in order to straighten the curved legs 212b, 214b. In the present case, the entire coil blank is 210b pressed at the same time.
  • the coil blank 210b is straightened in the third method step 254b by means of the straightening unit 222b.
  • the third method step 254b is carried out after the second method step 252b.
  • the Figures 12 to 16 show alternative configurations of pressing elements 228c, 228d, 228e, 228f, 228g.
  • the dimensions and geometries shown are to be understood purely as examples.
  • the alternative pressing elements 228c, 228d, 228e, 228f, 228g shown can be designed for pressing individual or several legs or even entire coil blanks and have corresponding dimensions.
  • the shown elements and/or features of the pressing elements 228c, 228d, 228e, 228f, 228g are present multiple times on these or that a pressing element has these elements and/or features multiple times in order to possibly straighten a desired number of legs at the same time to accomplish.
  • pressing elements are of course conceivable which have the features shown, in particular in multiple combinations.
  • the Figure 12 shows a first alternative pressing element 228c in a schematic representation.
  • the first alternative pressing element 228c has a multiple convex pressing surface 260c.
  • the pressing surface 260c has two bulges.
  • a number of bulges advantageously corresponds to a number of sections between bending points of a spiral blank to be straightened, in which legs of the spiral blank can be straightened.
  • the pre-curved pressing surface 260c enables the legs to be straightened to be pressed over.
  • the Figure 13 shows a second alternative pressing element 228d in a schematic representation.
  • the second alternative pressing element 228c has a pressing surface 260d with a protruding tip 262d.
  • the tip 262d enables the legs to be straightened to be pressed over.
  • the pressing surface 260d only has a tip 262d.
  • a number of tips 262d is of course adaptable to a straightening requirement.
  • other geometries, in particular protruding at least in sections, which are different from protrusions and/or tips are also conceivable.
  • the Figure 14 shows a third alternative pressing element 228e in a schematic sectional view.
  • the pressing element 228e has a movable over-pressing element 264e.
  • the over-pressing element 264e is mounted such that it can be extended from a pressing surface 260d of the third alternative pressing element 228e.
  • a movement of the overpressure element 264e is advantageously adapted to and/or synchronized with a movement of the pressing element 228e and/or to a production cycle and/or to a spiral feed.
  • the pressing surface 260d can be placed against the leg and this can be straightened and in particular overpressed by extending the over-pressing element 264e.
  • an overpressure path can be adapted by means of control and/or regulation of the extension of the overpressure element 264e, for example to a geometry and/or material properties and/or flexural rigidity of a spiral blank to be straightened.
  • the third alternative pressing element 228e advantageously has at least one corresponding over-pressing element 264e for each leg to be straightened.
  • the overpressure element 264e can be adapted to a course and/or a geometry of a spiral blank and/or leg to be straightened and/or provided for guiding the same.
  • the Figure 15 shows a fourth alternative pressing element 228f in a schematic representation.
  • the fourth alternative pressing element 228f has a pressing surface 260f with a guide groove 266f.
  • a spiral blank 236f to be straightened can be guided at least in sections through the guide groove 266f. This can advantageously be a lateral Slipping and/or deflection of a coil blank to be straightened can be prevented, especially when overpressing.
  • the Figure 16 shows a fifth alternative pressing element 228g in a schematic representation.
  • the fifth alternative pressing element 228g has a pressing surface 260g.
  • the fifth alternative pressing element 228g has guide elements 268g, 270g.
  • the guide elements 268g, 270g are designed as bolts.
  • a coil blank 236g to be straightened can be guided at least in sections by the guide elements 268g, 270g. This can advantageously prevent lateral slipping and/or deflection of a coil blank to be straightened, particularly when overpressing.
  • the pressing element 228g has two guide elements 268g, 270g.
  • a pressing element has a larger number of guide elements, especially if several legs are to be straightened and/or guided at the same time. It is also conceivable to guide a leg with more than two guide elements.

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Claims (10)

  1. Dispositif de pliage (200a ; 200b) pour la fabrication d'un grillage en fils métallique (10a ; 10b), en particulier filet de sauvegarde,
    ayant une pluralité d'hélices (12a, 14a ; 12b) qui sont tressées les unes avec les autres, dont au moins une hélice (12a ; 12b) est fabriquée à partir d'au moins un fil unique, un faisceau de fils, un cordon de fils, un câble de fils et/ou un autre élément longitudinal (16a ; 16b) avec au moins un fil (18a ; 18b) comprenant un acier ultra-résistant ayant une résistance à traction d'au moins 800 N mm-2,
    avec au moins une unité-pliage (202a) qui est conçue pour un façonnement d'un fils (18a ; 18b) ayant une résistance à traction d'au moins 800 N/mm2 et qui comprend au moins une vis-sans-fin de guidage (204a) aussi qu'un couteau-tressage (208a), qui peut être tourné par rapport à la vis-sans-fin de guidage (204a) autour d'une axe rotatif (206a), pour fabriquer une ébauche d'hélice (210a), ayant au moins deux branches courbées (212a, 214a ; 212b, 214b) et ayant au moins une zone de pliage (216a ; 216b) reliant les branches courbées, par pliage de l'élément longitudinal (16a ; 16b), et
    avec une unité-tressage (218a ; 218b) conçue pour tresser l'ébauche d'hélice (210a ; 210b) dans un pré-grillage (220a ; 220b) du grillage en fils métallique (10a ; 10b),
    avec une unité de rectification (222a) conçue pour serrement de l'ébauche d'hélice (210a) dans une direction de serrement (224a) perpendiculairement à l'axe rotatif (206a) et conçue pour la rectification des branches courbées (212a, 214a ; 212b, 214b), qui sont faits du fils (18a ; 18b) comprenant l'acier-ressort ultra-résistant, par une surpression des branches courbées.
  2. Dispositif de pliage (200a) selon la revendication 1,
    caractérisé en ce que l'unité de rectification (222a) est supportée tel qu'elle est tournable autour de l'axe rotatif (206a).
  3. Dispositif de pliage (200a) selon la revendication 2,
    caractérisé en ce qu'une rotation du couteau-tressage (208a) et une rotation de l'unité de rectification (222a) sont synchronisées.
  4. Dispositif de pliage (200a ; 200b) selon l'une des revendications précédentes, caractérisé en ce que l'unité de rectification (222a ; 222b) comprend au moins un élément de serrement (228a, 230a ; 228b, 230b) qui peut être mû perpendiculairement à une direction longitudinale (226a ; 226b) de l'ébauche d'hélice (210a ; 210b).
  5. Dispositif de pliage (200a) selon la revendication 4,
    caractérisé en ce que l'élément de serrement (228a, 230a) est disposé dans une zone de sortie (232a) de l'unité-pliage (202a).
  6. Dispositif de pliage (200b) selon la revendication 4 ou 5,
    caractérisé en ce que l'élément de serrement (228b, 230b) est disposé dans une proximité (234a) de l'unité-tressage (218a).
  7. Dispositif de pliage (200b) selon l'une des revendications précédentes,
    caractérisé en ce qu'une longueur de l'élément de serrement (228b, 230b) définit une longueur maximale de l'hélice (12b).
  8. Procédé de fabrication d'un grillage en fils métallique (10a ; 10b), en particulier un filet de sauvegarde,
    ayant une pluralité d'hélices (12a, 14a ; 12b) qui sont tressées les unes avec les autres, dont au moins une hélice (12a) est fabriquée à partir d'au moins un fil unique, un faisceau de fils, un cordon de fils, un câble de fils et/ou un autre élément longitudinal (16a ; 16b) avec au moins un fil (18a ; 18b) comprenant un acier-ressort ultra-résistant avec une résistance à traction d'au moins 800 N mm-2,
    en particulier par le biais d'au moins un dispositif de pliage (200a ; 200b) selon l'une des revendications précédentes,
    où une ébauche d'hélice (210a ; 210b), ayant au moins deux branches courbées (212a, 214a ; 212b, 214b) et ayant au moins une zone de pliage (216a ; 216b) reliant les branches (212a, 214a ; 212b, 214b), est fabriquée par le pliage de l'élément longitudinal (16a ; 16b) et
    où l'ébauche d'hélice (210a ; 210b) est tressée dans un pré-grillage (220a ; 220b) du grillage en fils métallique (10a ; 10b),
    où les branches courbées (212a, 214a ; 212b, 214b) formées du fil (18a ; 18b) comprenant l'acier-ressort ultra-résistant sont rectifiées par surpliage en sorte que, quand le surpliage a été réalisé et après un rappel élastique partiel suivant, les branches (212a, 214a ; 212b, 214b), qui sont formées du fil (18a ; 18b) comprenant l'acier-ressort ultra-résistant, ont un contour droit.
  9. Procédé selon la revendication 8,
    caractérisé en ce que l'ébauche d'hélice (210a) est au moins par sections serrée avant un tressage dans le pré-grillage (220a) pour rectifier les branches courbées (212a, 214a).
  10. Procédé selon la revendication 8,
    caractérisé en ce que l'ébauche d'hélice (210b) est au moins par sections serrée avant un tressage dans le pré-grillage (220b) pour rectifier les branches courbées 212b, 214b).
EP18701003.8A 2017-01-30 2018-01-16 Dispositif de pliage et procédé de production d'un treillis métallique Active EP3573776B1 (fr)

Applications Claiming Priority (2)

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DE102017101751.8A DE102017101751B3 (de) 2017-01-30 2017-01-30 Biegevorrichtung und Verfahren zur Herstellung eines Drahtgeflechts
PCT/EP2018/050967 WO2018137966A1 (fr) 2017-01-30 2018-01-16 Dispositif de pliage et procédé de production d'un treillis métallique

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US (1) US10857588B2 (fr)
EP (1) EP3573776B1 (fr)
JP (1) JP6675047B2 (fr)
CN (1) CN110234446B (fr)
CL (1) CL2019002014A1 (fr)
DE (1) DE102017101751B3 (fr)
MX (1) MX2019008746A (fr)
PH (1) PH12019501626A1 (fr)
WO (1) WO2018137966A1 (fr)

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DE102017123810A1 (de) * 2017-10-12 2019-04-18 Geobrugg Ag Überwachungsvorrichtung und Verfahren zur Überwachung einer Korrosion eines Drahtnetzes
DE102017123817A1 (de) * 2017-10-12 2019-04-18 Geobrugg Ag Drahtnetzvorrichtung
DE102019102593A1 (de) * 2019-02-01 2020-08-06 Geobrugg Ag Verfahren zur Herstellung von Wendeln, Herstellungsvorrichtung zur Herstellung von Wendeln, Maschendrahtnetzvorrichtung und Verwendungen der Maschendrahtnetzvorrichtung

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CN110234446B (zh) 2021-02-23
WO2018137966A1 (fr) 2018-08-02
JP6675047B2 (ja) 2020-04-01
CN110234446A (zh) 2019-09-13
EP3573776A1 (fr) 2019-12-04
DE102017101751B3 (de) 2018-07-12
US20190381558A1 (en) 2019-12-19
MX2019008746A (es) 2019-11-21
JP2020505234A (ja) 2020-02-20
CL2019002014A1 (es) 2019-10-11
US10857588B2 (en) 2020-12-08
EP3573776C0 (fr) 2023-12-13
PH12019501626A1 (en) 2020-03-02

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