EP4135916A1 - Mat welding system for producing concrete steel mats and method using same - Google Patents
Mat welding system for producing concrete steel mats and method using sameInfo
- Publication number
- EP4135916A1 EP4135916A1 EP21718535.4A EP21718535A EP4135916A1 EP 4135916 A1 EP4135916 A1 EP 4135916A1 EP 21718535 A EP21718535 A EP 21718535A EP 4135916 A1 EP4135916 A1 EP 4135916A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- positioning
- welding
- rods
- rod
- bars
- 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.)
- Pending
Links
- 238000003466 welding Methods 0.000 title claims abstract description 151
- 238000000034 method Methods 0.000 title claims description 30
- 229910000831 Steel Inorganic materials 0.000 title abstract description 8
- 239000010959 steel Substances 0.000 title abstract description 8
- 239000004567 concrete Substances 0.000 title abstract description 5
- 238000004519 manufacturing process Methods 0.000 claims abstract description 20
- 238000003860 storage Methods 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 7
- 238000002360 preparation method Methods 0.000 claims 1
- 230000002349 favourable effect Effects 0.000 description 2
- 239000011178 precast concrete Substances 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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
- B21F27/08—Making wire network, i.e. wire nets with additional connecting elements or material at crossings
- B21F27/10—Making wire network, i.e. wire nets with additional connecting elements or material at crossings with soldered or welded crossings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21F—WORKING OR PROCESSING OF METAL WIRE
- B21F23/00—Feeding wire in wire-working machines or apparatus
- B21F23/005—Feeding discrete lengths of wire or rod
Definitions
- the invention relates to a mesh welding system for producing welded steel mesh from a large number of bars by welding the bars to form a lattice structure consisting of longitudinal bars 5 and cross bars, comprising at least one supply device for supplying the large number of bars, at least one welding device for, preferably step-by-step, welding of the bars to the lattice structure consisting of longitudinal bars and transverse bars, and at least one transport device for transporting the at least one
- the invention also relates to a method for producing welded steel mesh from a plurality of bars by welding the bars to a lattice structure consisting of longitudinal bars and transverse bars by means of such a mesh welding system.
- Figures 1a) and 1b) show two examples of a lattice structure 4 consisting of longitudinal bars 2 and transverse bars 3. These are special mats, which are used, for example, for precast concrete elements.
- the geometry of the welded wire mesh can vary greatly and must correspond to the geometry and the static requirements of the concrete element in which the welded wire mesh is used.
- the lattice structure 4 shown in FIG. 1 a) has a door opening 37, window 38 and sloping roof 39.
- the lattice structure 4 shown in FIG. 1 b) has openings 40 and bevels 41.
- such special mats especially in small precast concrete plants that have little need for welded wire mesh, are either laboriously cut from standard mats or laboriously tied together from individual rods.
- mesh welding systems are known from the prior art, in which the rods for welding the welded wire mesh are either prepared manually or by must be fed to a straightening machine by means of complex machine technology of the welding device.
- the bars are either placed in a welding pallet, which is then fed to the welding device, or the bars are placed directly in the welding device for welding.
- the automatic mesh welding systems have one or more straightening machines for straightening the longitudinal and cross bars and transport systems to transport the bars to the welding device. Different transport systems are used for this. In some cases, separate straightening machines are also used for the cross bars, so that the bars can be produced as close as possible to the welding line and thus short transport routes can be achieved. However, at least two straightening machines are required for these systems.
- the automatic mesh welding systems known from the prior art have a relatively high space requirement.
- Document EP 2 529 857 A1 discloses an automatic mesh welding system for the production of arcuate welded steel mesh, in which the longitudinal and transverse bars are each transported via a carriage which can be moved on rails lying on the floor.
- the object of the present invention is to provide a mesh welding system which is improved over the prior art and in which the disadvantages of the prior art are at least partially avoided. At the same time, it should be possible to produce special mats fully automatically with the mesh welding system, with at least the same flexibility that the systems known from the prior art have.
- the mesh welding system should continue to use material as efficiently as possible and be built as compactly as possible in order to significantly reduce the investment costs of such a mesh welding system compared to the prior art.
- a further object is to provide a method for the production of welded wire mesh by means of such an improved mesh welding system.
- the invention provides that the at least one transport device has at least one first positioning device, with which rods can be positioned in a longitudinal direction relative to the at least one welding device, and at least one second positioning device, which is pivotable relative to the first positioning device and with which rods can be positioned in a transverse direction transversely to the longitudinal direction relative to the at least one welding device, the at least one transport device having at least one carrier on which at least one, preferably all, of the positioning devices is / are arranged, preferably the second positioning device being displaceable and / or is arranged pivotably on the at least one carrier and / or the first positioning device is arranged in a stationary manner on the at least one carrier.
- the at least one transport device creates the prerequisite for the at least one provision device to be able to provide rods which have essentially the same orientation, regardless of whether the rods are used as transverse rods or as longitudinal rods. After the bars have been provided by the at least one supply device, the bars are then brought into the correct position relative to the welding device by means of the at least one transport device, depending on whether they are transverse bars or longitudinal bars.
- the at least one provision device in a relatively simple manner.
- it can be implemented with just one straightening machine, which is associated with significant space savings compared to the prior art.
- the straightening machine produces all the necessary bars for the reinforcing steel mesh to be produced according to the CAD data with the predetermined lengths and diameters.
- the possibility of designing the at least one supply device relatively simply means that the investment costs for the mesh welding system can be significantly reduced compared to the prior art. At the same time, however, that does not happen The flexibility known from the prior art in the production of special mats is at least retained.
- At least one of the positioning devices preferably the second positioning device, is displaceable in the longitudinal direction.
- the longitudinal bars can be fed directly to the welding device by means of the at least one transport device.
- the longitudinal rods protrude differently far beyond the welding line, or, in other words, to produce different protrusion differences of the longitudinal rods.
- inclines 41 as shown in FIG. 1 b), can be produced in a simple manner.
- the positioning devices of the at least one transport device each have a longitudinal extension and the second positioning device between at least one first pivot position, in which the second positioning device is arranged parallel and / or in extension to the first positioning device, and at least one second pivot position , in which the second positioning device is arranged transversely to the first positioning device, is pivotable. If the second positioning device is arranged parallel and in extension to the first positioning device, at least one longitudinal rod can be positioned both with the first and with the second positioning device. As a result of the pivotability of the second positioning device, a rod initially arranged in the longitudinal direction can be transferred in the transverse direction.
- At least one, preferably all, of the positioning devices of the at least one transport device has at least one, preferably more than one, openable and closable gripper, and / or a, preferably bridge-shaped and / or fixed, frame is provided on which the at least one transport device, preferably in the transverse direction, is movably mounted.
- At least one positioning channel is provided in which at least one rod in the transverse direction relative to the at least one Welding device can be positioned, preferably with at least one positioning unit being provided with which at least one rod arranged in the at least one positioning channel is movable, particularly preferably pullable and / or slidable relative to the at least one positioning channel, and / or at least one loading device, particularly preferably comprising several feed fingers, is provided, with which at least one rod arranged in the at least one positioning channel can be conveyed from the at least one positioning channel to the at least one welding device, particularly preferably at least one welding electrode of the at least one welding device.
- At least one storage table is provided on which several rods can be positioned parallel to one another and in the longitudinal direction relative to the at least one welding device, preferably with several, particularly preferably equidistantly arranged, positioning grooves for the rods being arranged on the at least one storage table.
- the at least one supply device comprises at least one straightening machine with at least one straightening device for straightening wire, rod or strip-shaped material to be straightened, and / or at least one magazine in which rods and / or material to be straightened by means of at least one straightening machine, which preferably has different properties to be straightened, can be stored, comprises, and / or comprises at least one separating device for separating rods from a continuous strand, and / or comprises at least one rod outlet for rods straightened by at least one straightening machine, preferably wherein the at least one rod outlet can be opened circumferentially and is closable, and / or comprises at least one provision drawer which is movable relative to the at least one transport device, preferably in the transverse direction and / or between a rod loading position and a rod unloading position, in which at least one, preferably more than one rod can be temporarily stored.
- the at least one mat pull-out device having at least one adjusting device with which the at least one lattice structure, preferably in the longitudinal direction, in particular exclusively in the longitudinal direction, and / or in steps, is movable, particularly preferably wherein the at least one adjusting device has at least one liftable and lowerable and / or openable and closable gripper unit.
- At least one destacking carriage preferably movable on rails and / or in the longitudinal direction, on which at least one, preferably more than one, completely welded lattice structure can be placed, is arranged, preferably wherein the at least one stacking carriage has at least one, preferably jaw-shaped, gripper for the at least one lattice structure.
- the bars provided by the at least one provision device are transported to the at least one welding device by means of the at least one transport device,
- the bars are welded, preferably step by step, by means of the at least one welding device to form the lattice structure consisting of longitudinal bars and transverse bars,
- At least one of the positioning devices preferably the second positioning device, the at least one transport device and thereby at least one rod arranged therein are displaced in the longitudinal direction.
- the positioning devices of the at least one transport device each have a longitudinal extension and, in a further method step, the second positioning device between at least one first pivot position in which the second positioning device is arranged parallel and / or in extension to the first positioning device, and at least one second pivot position, in which the second positioning device is arranged transversely to the first positioning device, is pivoted.
- the at least one transport device is moved, preferably in the transverse direction.
- At least one positioning channel is provided, in which in a further process step at least one rod is positioned in the transverse direction relative to the at least one welding device, preferably with at least one positioning unit being provided with which in a further process step at least one
- the rod arranged in the at least one positioning channel is moved, particularly preferably pulled and / or pushed, relative to the at least one positioning channel, and / or at least one loading device, particularly preferably comprising several loading fingers, is provided, with which at least one in the at least one positioning channel arranged rod from the at least one positioning channel for at least one welding device, particularly preferably at least one welding electrode of the at least one welding device, is conveyed.
- the at least one supply device comprises at least one separating device, with which rods are separated from a continuous strand in a further process step, and / or comprises at least one supply drawer that can be moved relative to the at least one transport device, in which in In a further method step, at least one, preferably more than one, rod is temporarily stored, preferably wherein the at least one supply drawer is moved in the transverse direction and / or between a rod loading position and a rod unloading position.
- FIG. 3 shows an assembly of the mesh welding system comprising the rod outlet, the transport device, the storage table and the welding device in a schematically illustrated perspective view
- FIG. 4 shows an assembly of the mesh welding system comprising the rod outlet, the transport device and the storage table in a schematically illustrated perspective view
- FIG. 5 shows an assembly of the mesh welding system comprising the rod outlet and the transport device in a schematically illustrated perspective view
- FIG. 6 shows the transport device in a schematically illustrated perspective view, two positions of the transport device being shown by way of example, 7 shows an assembly of the mesh welding system comprising the frame and the movably mounted transport device in a schematically illustrated perspective view,
- FIG. 9 shows a partial section of the mesh welding system in a schematically illustrated cross-sectional view from the side, illustrating a welding of a transverse rod below a longitudinal rod
- FIG. 10 shows a partial section of the mesh welding system in a schematically illustrated cross-sectional view from the side, with a welding of a transverse rod above a longitudinal rod being illustrated,
- FIG. 11 shows a partial section of the mesh welding system in a schematically illustrated plan view from above, with a different positioning of three longitudinal bars in the longitudinal direction being illustrated,
- FIG. 12 shows a partial section of the mesh welding system in a schematically illustrated cross-sectional view from the side, illustrating a movement of the lattice structure in the longitudinal direction
- FIG. 13 shows a mat pull-out device of the mat welding system in a schematically represented perspective view
- FIG. 14 shows a stacking trolley of the mat welding system in a schematically represented perspective view.
- Figures 2a) and 2b) show a preferred embodiment of a mesh welding system 1, the sub-figures essentially differing in that a shield 42 surrounding the mesh welding system 1 at least in some areas is not shown in sub-figure b).
- the mesh welding system 1 for the production of welded wire mesh from a multiplicity of rods 2, 3 by welding the rods 2, 3 to a lattice structure 4 consisting of longitudinal rods 2 and transverse rods 3 comprises a provision device 5 for Provision of the plurality of bars 2, 3, a welding device 6 for, preferably step-by-step, welding of the bars 2, 3 to form the lattice structure 4 consisting of longitudinal bars 2 and cross bars 3, and a transport device 7 for transporting the bars 2 provided by the supply device 5, 3 to the welding machine 6.
- the transport device 7 comprises a first positioning device 8, with which rods 2 can be positioned in a longitudinal direction 9 relative to the welding device 6, and a second positioning device 10, which can be pivoted relative to the first positioning device 8 and with which rods 3 can be positioned in a transverse direction 11 transverse to the longitudinal direction 9 relative to the welding device 6.
- the supply device 5 comprises a straightening machine 21 with at least one straightening device for straightening wire, rod or band-shaped straightening material 22 and a magazine 23 in which straightening material 22, which preferably has different straightening material properties, can be stored by means of at least one straightening machine 21.
- the magazine 23 can be designed to store rods 2, 3.
- the magazine 23 comprises unwinding devices 43 for reels on which straightened objects 22 with different straightened object properties, such as steel wires with different diameters, are wound.
- a mat pull-out device 28 is arranged, on which at least one lattice structure 4 can be placed.
- a stacking trolley 32 Arranged in a production direction 27 after the welding device 6 and after the mat pull-out device 28 is a stacking trolley 32 which is movable on rails 31 and in the longitudinal direction 9 and on which more than one completely welded lattice structure 4 can be placed.
- the mesh welding system 1 has a control device with which lattice structures 4, in particular special meshes of the type shown in FIGS. and 1 b) shown type.
- An operator 45 can monitor the production process via a control panel 44.
- FIGS. 3 to 7 show a region of the mesh welding system 1, which is arranged in the production direction 27 between the straightening machine 21 and the welding device 6 and in particular comprises the transport device 7.
- the transport device 7 is shown as an example in several positions in order to be able to illustrate the process. In the specific exemplary embodiment, however, there is exactly one transport device 7, a bridge-shaped and fixed frame 13 being provided on which the transport device 7 is mounted such that it can be moved in the transverse direction 11.
- the supply device 5 comprises a rod outlet 25 for rods 2, 3 straightened by the straightening machine 21.
- the rod outlet 25 can, for example, be tubular and / or can be opened and closed on the circumference.
- a separating device 24 for separating bars 2, 3 from a continuous strand is arranged between the straightening machine 21 and the bar outlet 25. Rods 2, 3 of a predetermined length can thus be provided.
- the provision device 5 comprises a provision drawer 26 which can be moved relative to the transport device 7 in the transverse direction 11 and / or between a rod loading position and a rod unloading position, in which at least one, preferably more than one, rod 2, 3 can be temporarily stored.
- three rods 2, 3 can be arranged parallel to one another in the supply drawer 26.
- the rods 2, 3 can be conveyed from the rod outlet 25 via openable and closable retaining elements 46 and under the influence of gravity into the supply drawer 26.
- the supply drawer 26 is located essentially below the rod outlet 25. This position thus represents a rod loading position.
- the supply drawer 26 under the rod outlet 25 serves as a buffer and to provide the longitudinal rods 2 and the transverse rods 3 for the transport device 7.
- the supply drawer 26 After the supply drawer 26 has been filled with one or more than one rod 2, 3, it is moved from the rod loading position into the rod unloading position. For this purpose, it moves in the transverse direction 11 and towards the transport device 7.
- the transport device 7 By means of the transport device 7, rods 2, 3 provided by the provision device 5 can be positioned relative to the welding device 6.
- the transport device 7 comprises a first positioning device 8, with which rods 2 can be positioned in a longitudinal direction 9 relative to the welding device 6, and a second positioning device 10, which can be pivoted relative to the first positioning device 8 and with which rods 3 in a transverse direction 11 transversely to the The longitudinal direction 9 can be positioned relative to the welding device 6.
- the positioning devices 8, 10 of the transport device 7 have several openable and closable grippers 12 with which the rods 2, 3 can be gripped and deposited in a predetermined position relative to the welding device 6.
- the positioning devices 8, 10 of the transport device 7 each have a longitudinal extension and the second positioning device 10 is between at least one first pivot position in which the second positioning device 10 is arranged parallel and in extension to the first positioning device 8, and at least one second pivot position in which the second positioning device 10 is arranged transversely to the first positioning device 8, pivotable.
- the transport device 7 has a bar-shaped carrier 51 on which the positioning devices 8, 10 are arranged, the second
- Positioning device 10 is arranged displaceably and pivotably on carrier 51 and first positioning device 8 is arranged stationary on carrier 51.
- a storage table 19 is provided on which several rods 2 can be positioned parallel to one another and in the longitudinal direction 9 relative to the welding device 6, with several equidistant positioning grooves 20 for the rods 2 being arranged on the storage table 19 (compare e.g. Figure 4).
- the second positioning device 10 In order to receive one or more rods 2, 3 from the supply drawer 26, the second positioning device 10 is in the first pivot position, in which the second positioning device 10 is arranged parallel and in extension to the first positioning device 8.
- the transport device 7 is arranged above the supply drawer 26 (compare, for example, FIG. 3).
- the second positioning device 10 In order to position one or more rods 2 in the longitudinal direction 9 relative to the welding device 6, the second positioning device 10 remains in the first pivot position.
- the transport device 7 is moved in the transverse direction 11 along the frame 13 until it has reached a position in which the rod or rods 2 are to be placed on the storage table 19.
- the transport device 7 places the longitudinal rod or rods 2 positioned in the longitudinal direction 9 and transverse direction 11 on the storage table 19.
- the second positioning device 10 can be displaced in the longitudinal direction 9. This makes it possible to advance the rod or rods 2 to different extents in the longitudinal direction 9.
- FIG. 11 This is shown in FIG. 11 by way of example with the aid of three longitudinal rods 2 arranged parallel to one another: As a result of a displacement of different widths, the middle rod 2 protrudes the furthest over the welding line which passes through the welding electrode 18 is highlighted.
- the adjacent bars 2 have a spacing 47 and 48 relative to the central bar 2, the spacings 47 and 48 being of different sizes.
- the rod or rods 3 are picked up by the transport device 7 from the supply drawer 26.
- the transport device 7 is located above the supply drawer 26.
- the second positioning device 10 is arranged in the first pivoting position in which the second positioning device 10 is arranged parallel and in extension to the first positioning device 8.
- the transport device 7 on the frame 13 is moved in the transverse direction 11 and before, after or during this movement the second positioning device 10 is moved from the first pivot position into the second pivot position, in which the second positioning device 10 is transverse to the first positioning device 8 is arranged, pivoted.
- the second positioning device 10 can optionally also be displaced in the longitudinal direction 9 in order to set a predetermined distance between the rod or rods 3 and the welding line.
- a transverse rod 3 is to be welded below a longitudinal rod 2.
- the mesh welding system 1 has a positioning channel 14 in which at least one rod 3 can be positioned in the transverse direction 11 relative to the welding device 6.
- the rod or rods 3 are deposited in this positioning channel 14 by means of the transport device 7.
- a positioning unit 15 is provided with which the rod or rods 3 can be moved relative to the positioning channel 14, eg can be pulled and / or pushed.
- the positioning channel 14 is extended laterally for the placement of the transverse rods 3.
- the positioning unit 15 pushes and / or pulls the transverse rods 3 into the correct transverse position for loading the transverse rods 3 into the welding electrode 18.
- a loading device 16 is provided which, in the specifically illustrated case, comprises a plurality of loading fingers 17. With the aid of the charging device 16, the rod or rods 3 arranged in the positioning channel 14 can be conveyed from the positioning channel 14 to the welding device 6, specifically to the welding electrode 18 of the welding device 6.
- a transverse rod 3 is picked up from the positioning channel 14 by means of the feed fingers 17, and is deposited on the welding electrode 18 by a pivoting movement.
- the welding electrode 18 is designed to be adjustable in height and, after a transverse rod 3 has been deposited, can be moved towards the longitudinal rod or rods 2. The transverse rod 3 can then be welded to the longitudinal rod or rods 2.
- a transverse rod 3 is to be welded above a longitudinal rod 2.
- the transverse rod or rods 3 are placed directly into the welding device 6 with the transport system and then welded to the longitudinal rod or rods 2.
- FIG. 8 shows the welding device 6 in a schematically illustrated perspective view.
- the welding device 6 comprises a stationary frame structure 50 and two welding heads 34 movably mounted thereon.
- the welding heads 34 are supplied with the energy necessary for welding the rods 2, 3 via busbars 35 provided.
- the welding electrode 18 functions as a counter electrode.
- a lifting unit 36 is provided with which the welding electrode 18 can be adjusted in height. Instead of the welding electrode 18 shown, one or more welding heads can also be used.
- the bars 2, 3 are connected at the crossing points by means of resistance welding.
- FIG. 12 shows a partial section of the mesh welding system 1 in a schematically illustrated cross-sectional view from the side in order to illustrate a movement of the lattice structure 4 in the longitudinal direction 9.
- the first cross bar is gripped by at least one gripper unit 30 which conveys the cross bar together with the welded longitudinal bars to the next cross bar position.
- the at least one gripper unit 30 can be arranged on a mat pull-out device 28, as shown in FIG.
- This mat pull-out device 28 which is arranged in the production direction 27 after the welding device 6 and on which at least one lattice structure 4 can be placed, has an adjusting device 29 with which the at least one lattice structure 4, preferably in the longitudinal direction 9, in particular exclusively in the longitudinal direction 9, and / or is movable step by step, the adjusting device 29 having the at least one liftable and lowerable and / or openable and closable gripper unit 30.
- the adjusting device 29 is slidably mounted on guide rails 49.
- the mat pull-out device 28 prefferably has plastic supports on which the at least one lattice structure 4 can be placed.
- FIG. 14 shows a stacking trolley 32 which is arranged in the production direction 27 after the welding device 6 and after the mat pull-out device 28.
- the stacking trolley 32 can be moved on rails 31 and / or in the longitudinal direction 9. At least one, preferably more than one, is complete on the destacking carriage 32 Welded lattice structure 4, can be put down.
- the stacking carriage 32 has jaw-shaped grippers 33 for the at least one lattice structure 4. In order to receive a lattice structure 4, the stacking trolley 32 moves up to the mat pull-out device 28, grips the lattice structure 4 and pulls it off the mat pull-out device 28.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Wire Processing (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ATA50318/2020A AT523802B1 (en) | 2020-04-15 | 2020-04-15 | Mesh welding plant for the production of welded wire mesh |
PCT/EP2021/059161 WO2021209304A1 (en) | 2020-04-15 | 2021-04-08 | Mat welding system for producing concrete steel mats and method using same |
Publications (1)
Publication Number | Publication Date |
---|---|
EP4135916A1 true EP4135916A1 (en) | 2023-02-22 |
Family
ID=75497911
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP21718535.4A Pending EP4135916A1 (en) | 2020-04-15 | 2021-04-08 | Mat welding system for producing concrete steel mats and method using same |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP4135916A1 (en) |
AT (1) | AT523802B1 (en) |
WO (1) | WO2021209304A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN115365689B (en) * | 2022-10-27 | 2023-02-03 | 江苏科瑞恩自动化科技有限公司 | Flexible positioning welding device |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FI85957C (en) * | 1990-10-25 | 1992-06-25 | Tammer Elementti Oy | Method and apparatus for the automatic manufacture of reinforcements for concrete elements |
ATE180186T1 (en) * | 1995-03-24 | 1999-06-15 | Filzmoser Franz | METHOD AND DEVICE FOR PRODUCING REINFORCEMENT MATS |
DE29518140U1 (en) * | 1995-11-16 | 1996-01-18 | Theis, Klaus, Dr., 60596 Frankfurt | Straightening and welding device for the production of custom-made reinforcement grids for concrete elements |
IT1402246B1 (en) * | 2010-09-27 | 2013-08-28 | Awm Spa | METHOD OF FEEDING AND RELATIVE TRANSVERSAL POWER SUPPLY OF WHOLE BARS OR STEEL ROUNDS FOR AUTOMATIC FORMATION OF ELECTRO-WELDED METALLIC NETS WITH SPECIAL SHAPED SHAPES |
AT511529B1 (en) * | 2011-06-01 | 2013-02-15 | Progress Maschinen & Automation Ag | METHOD AND DEVICE FOR PRODUCING BROAD-TREATED BUILDING MATS |
WO2017041122A1 (en) * | 2015-09-07 | 2017-03-16 | Evg Entwicklungs- U. Verwertungs-Gesellschaft M.B.H. | Installation for producing mesh mats welded together from longitudinal and transverse bars |
-
2020
- 2020-04-15 AT ATA50318/2020A patent/AT523802B1/en active
-
2021
- 2021-04-08 EP EP21718535.4A patent/EP4135916A1/en active Pending
- 2021-04-08 WO PCT/EP2021/059161 patent/WO2021209304A1/en unknown
Also Published As
Publication number | Publication date |
---|---|
AT523802A1 (en) | 2021-11-15 |
WO2021209304A1 (en) | 2021-10-21 |
AT523802B1 (en) | 2022-07-15 |
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