EP3691808B1 - Procédé pour déployer et mettre au format un matériau métallique profilé en bande de manière à obtenir une structure de natte de type treillis et dispositif pour réaliser le procédé - Google Patents

Procédé pour déployer et mettre au format un matériau métallique profilé en bande de manière à obtenir une structure de natte de type treillis et dispositif pour réaliser le procédé Download PDF

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Publication number
EP3691808B1
EP3691808B1 EP18778360.0A EP18778360A EP3691808B1 EP 3691808 B1 EP3691808 B1 EP 3691808B1 EP 18778360 A EP18778360 A EP 18778360A EP 3691808 B1 EP3691808 B1 EP 3691808B1
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EP
European Patent Office
Prior art keywords
roller
spikes
pair
strip
strip material
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EP18778360.0A
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German (de)
English (en)
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EP3691808A1 (fr
Inventor
Karl-Hermann Stahl
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Hacanoka GmbH
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Hacanoka GmbH
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Priority to PL18778360T priority Critical patent/PL3691808T3/pl
Publication of EP3691808A1 publication Critical patent/EP3691808A1/fr
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D31/00—Other methods for working sheet metal, metal tubes, metal profiles
    • B21D31/04—Expanding other than provided for in groups B21D1/00 - B21D28/00, e.g. for making expanded metal
    • B21D31/043—Making use of slitting discs or punch cutters

Definitions

  • the invention relates to a method for spreading out and sizing profiled metallic strip material into a net-like mat structure with a predetermined mesh size by a continuous drawing process, for which purpose the strip material is provided with notches that run in the longitudinal direction of the strip, are limited in length and form metal cores between them, the unnotched areas form network nodes after spreading and formatting and the metal wires are initially connected to one another via webs adjoining the base of the notch, the webs also having cracks formed by bending deformation due to fatigue fracture and the remaining web of a separating roller is perforated, so that the metal cores are reliably separated from each other in the notch area and the strip material can be pulled up to form a net-like structure.
  • the invention also relates to a device for carrying out the method.
  • Such a method is in its basic sequence in the EP 2 613 898 B1 already described, which basically makes it possible to shape a strip material processed according to the basic features of the preamble of present claim 1 into a mat structure. Further details on the pretreatment of the strip material emerge from the aforementioned EP 2 613 898 B1 .
  • the invention is therefore based on the object of obtaining a method of the type mentioned at the outset such that a uniform shape and thus a uniform network formation is achieved with a continuous drawing process over the entire width and length of the subsequent mat structure.
  • this object is achieved according to the invention in that the tape material is first drawn up at the beginning of the tape to the intended mesh size, for example in a manual manner with machine support, so that some rows of meshes are aligned orthogonally and at right angles to the mesh diagonal Tape edge are oriented that further the prepared tape beginning is fed to a first, rotatable roller pair of a winding unit, in that the tape beginning is placed on the preferably lower roller designed as a mandrel roller in such a way that the mandrels of the mandrel roller enter the mesh, and then the preferably upper one , provided with webs and recesses, designed as a pressure roller against the lower roller, so that both rollers form a nip between them, the arrangement of the mandrels is chosen so that - in both orthogonal directions - every second mesh through a mandrel is formed by dipping the mandrels of the mandrel roller into the recesses of the pressure roller.
  • the advantage achieved by the invention consists essentially in the fact that the pulling forces in every second mesh in the area of the largest mesh width, taking into account the spring-back, are essentially only applied in the nip and the upstream meshing area in front of it can develop freely. In this way, a uniform network formation is achieved, with the pull-up forces acting relatively uniformly over the entire width of the mesh structure.
  • the edge-side seen in the longitudinal direction of the belt, is pulled open by an axially displaceable mandrel, which is moved via a control link on the edge of the mandrel roller.
  • first and the second roller pair are aligned with one another in such a way that the thorns of the second roller each enter all meshes.
  • the mandrels of the first and second roller pair have a pyramidal or truncated pyramid shape, which are symmetrical or asymmetrical depending on their position.
  • a further, very advantageous embodiment of the invention provides that the second pair of rollers is followed by a third pair of rollers, the lower roller being provided with guide receptacles for the metal cores, whereby the network nodes connecting the metal cores are precisely positioned on this roller and in the guide receptacle from the upper roller provided, axially spaced discs are pressed, further between the discs are arranged punches, which are centered on the network nodes and press them into the cutting knives of the lower roller, whereby those ending at the network nodes, from the milling and separating the metal wires remaining, tapering separation cracks are cut out.
  • the cutting device is designed so that the area adjacent to the network node formed by the metal cores that meet there, i.e. the tapering separation crack between the cores, is provided with a small radius and the tool is designed in this way is that after the cutting process, the surface is smoothed with a build-up of compressive stress.
  • a device solving the problem according to the invention is characterized by a winding unit with a first, rotatably drivable pair of rollers, in which the preferably lower roller is designed as a mandrel roller and the preferably upper roller is provided with webs and recesses as a pressure roller which can be advanced against the lower one, so that both rollers have one between them Form roll gap for profiled metallic strip material from a net-like mat structure, the arrangement of the mandrels is chosen so that - in both orthogonal directions - every second mesh of the mat structure is formed by a mandrel, in that the mandrels of the mandrel roller dip into the recesses of the pressure roller.
  • the pulling-up process is significantly facilitated and improved if the mandrel roller has an axially displaceable mandrel at the edge, which is moved via a control link on the edge of the mandrel roller and, viewed in the longitudinal direction of the band, pulls every second loop.
  • the winding unit has a further pair of rollers for reshaping the strip material, this pair of rollers essentially corresponding in its surface structure to the first pair of rollers, but with twice the number of mandrels and a correspondingly modified design of the top roller in order to be able to use the formed mat structure of the Band material to compensate for existing springback forces and to achieve good dimensional accuracy.
  • first and the second roller pair are aligned with one another in such a way that the thorns of the second roller each enter all meshes of the mat structure.
  • the mandrels of the first and second roller pair can have a pyramidal or truncated pyramid shape, which are symmetrical or asymmetrical depending on their position.
  • the second pair of rollers it has proven to be expedient for the second pair of rollers to be followed by a third pair of rollers, the lower roller being provided with guide receptacles for positioning the network nodes connecting the metal wires, while spaced disks are provided on the upper roller , through which the network nodes are pressed in the axial direction into the guide receptacles, with punches being arranged between the discs, which are centered on the network nodes and press them into the cutting knives of the first roller, whereby the ones ending at the network nodes from milling and separating the Metal veins remaining, tapering separation cracks are cut out.
  • the cutting device is round so that the area adjacent to the network node, formed by the metal cores that meet there, is provided with a small radius, the tool being designed so that the surface is smoothed after the cutting process is achieved with simultaneous build-up of compressive stress.
  • the device shown in the drawing allows a method to be carried out for spreading and sizing profiled metallic strip material 1 to form a net-like mat structure 2 with a mesh size to be specified by means of a continuous drawing process.
  • the strip material 1 is provided with notches 3 which run in the longitudinal direction of the strip, are limited in length and form metal wires 11 between them, as shown in FIG Fig. 2 indicated and recognizable on the left.
  • the unnotched Areas then form network nodes 4 after spreading and formatting, as is also shown in FIG Fig. 2 can be seen in the right area.
  • the metal wires 11 are initially connected to one another via webs adjoining the base of the notch. However, these webs have cracks formed by bending deformation due to fatigue fracture, so that the remaining web is finally broken through by a separating roller. As a result, the metal cores 11 are reliably separated from one another in the notch area, so that the strip material 1 can be drawn up to form a net-like structure.
  • the band material 1 is first pulled at the beginning of the band to the intended mesh size in preparation for pulling on, so that some rows of stitches are orthogonally aligned and oriented at right angles to the band edge with respect to their mesh diagonal. This is done in a manual way with machine support.
  • the prepared beginning of the tape is then fed to a first, rotatable pair of rollers 5 of a winding unit by placing the beginning of the tape onto the preferably lower roller, designed as a mandrel roller 5.1, so that the mandrels 6 of the mandrel roller 5.1 enter the mesh.
  • the preferably upper one, provided with webs and recesses is designed as a pressure roller 5.2 Roll against the lower one so that both rolls form a nip between them.
  • the arrangement of the mandrels 6 is chosen so that - in both orthogonal directions - every second stitch is formed by a mandrel 6 in that the mandrels 6 of the mandrel roller 5.1 dip into the recesses 7 of the pressure roller 5.2.
  • the stretching mesh area 8 located in front of it can be designed freely in terms of its spatial shape, as is particularly the case in FIG Fig. 1 , 4th and 6th can be seen in the form of an upward bulge. In this way, a uniform network formation is achieved, with the pull-up forces acting relatively uniformly over the entire width of the mesh structure.
  • the edge-side seen in the longitudinal direction of the tape, is the second mesh - as in particular in FIG Fig. 2 , 3 and 5 , but also in Fig. 6 can be seen - pulled up by an axially displaceable mandrel 9, which is moved via a control link 10 on the edge of the mandrel roller 5.1.
  • a largely linear edge of the mesh structure is achieved.
  • the drawn-up, initially roughly shaped mat structure 2 is fed to a further pair of rollers for reshaping.
  • This pair of rollers corresponds in his
  • the surface structure is essentially that of the first pair of rollers, but can be provided with twice the number of mandrels and a correspondingly modified design of the top roller in order to compensate for the spring-back forces of the mat structure and to achieve good dimensional accuracy.
  • this ensures that bulges in particular, which can be a nuisance during later winding, are smoothed out by a slight rolling deformation.
  • the mandrels 9 for forming the meshes in the first and second roller pair have a pyramidal or truncated pyramid shape, which are symmetrical or asymmetrical depending on their position.
  • the invention further provides that the second pair of rollers is followed by a third pair of rollers.
  • One roller 14.1 is this roller pair, as in the Figures 8 to 10 shown, provided with guide receptacles for the metal wires, whereby the network nodes 4 connecting the metal wires 11 are precisely positioned on this roller.
  • they are pressed into the guide receptacle by disks 12 provided on the second roller 14.2 and arranged at a mutual spacing in the axial direction.
  • punches 13 are arranged between the disks 12, which are aligned centrally with respect to the network nodes 4 and press them into the cutting knife 15 of the first roller 14.1. Through this the tapering separation cracks that end at the network node 4 and remain from the milling and cutting of the metal wires 11 are cut out.
  • the cutting device is designed in such a way that the area adjoining the network node 4 and formed by the metal cores that meet there, that is, the tapering separation crack between the cores, is provided with a small radius.
  • the tool is also designed in such a way that, after the cutting process, the surface is smoothed with a build-up of compressive stress.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wire Processing (AREA)
  • Nonwoven Fabrics (AREA)
  • Winding, Rewinding, Material Storage Devices (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Rolls And Other Rotary Bodies (AREA)

Claims (14)

  1. Procédé destiné à déployer et mettre au format un matériau métallique profilé en bande (1) de manière à obtenir une structure de nattede type treillis (2) présentant une ouverture de maille à prédéfinir par un processus d'étirage continu, ce qui permet au matériau en bande (1) d'être pourvu d'entailles (3) s'étendant dans la direction longitudinale de la bande, délimitées en longueur et formant entre elles des fils métalliques (11), les zones sans entaille formant, après le déploiement et la mise au format, des nœuds de treillis (4) et les fils métalliques (11) étant d'abord reliés les uns aux autres par le biais de parties jointives adjacentes dans le fond de l'entaille, les parties jointives présentant en outre des amorces de fissures formées par la déformation en flexion par une rupture par fatigue et la partie jointive résiduelle étant rompue par un cylindre de séparation de telle sorte que les fils métalliques (11) au niveau des entailles sont séparés de manière sûre les uns des autres et le matériau en bande (1) peut être étiré de manière à obtenir la structure de type treillis, caractérisé en ce que le matériau en bande (1) destiné à la préparation de l'étirage continu est d'abord étiré, au début de la bande, à l'ouverture de maille prévue de telle sorte quelques rangées de mailles sont orientées orthogonalement entre elles et, par rapport à leur diagonale de maille, perpendiculairement au bord de bande, en ce qu'en outre le début de la bande préparé est alimenté vers une première paire de cylindres (5) d'une unité d'étirage qui peuvent être entraînés en rotation, où le début de bande est placé sur le cylindre de préférence inférieur réalisé sous la forme d'un cylindre à pointes (5.1) de telle sorte que les pointes (6) entrent dans les mailles, et ensuite le cylindre de préférence supérieur pourvu de parties jointives et d'évidements (7) et réalisé sous la forme d'un cylindre de compression (5.2) est placé contre le cylindre inférieur de telle sorte que les deux cylindres (5) forment entre eux une fente de cylindre, l'agencement des pointes (6) étant choisi de telle sorte que - dans les deux directions orthogonales - une maille sur deux est façonnée par une pointe (6), et les pointes (6) du cylindre à pointes (5.1) pénètrent dans les évidements (7) du cylindre de compression (5.2).
  2. Procédé selon la revendication 1, caractérisé en ce qu'une maille sur deux du côté du bord, respectivement vue dans la direction longitudinale de la bande, est étirée par une pointe (9) mobile axialement qui est déplacée sur le bord du cylindre à pointes (5.1) par le biais d'une coulisse de commande (10).
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce que la structure de natte étirée, d'abord façonnée grossièrement, est alimentée vers une autre paire de cylindres pour être refaçonnée, cette paire de cylindres correspondant dans sa structure de surface sensiblement à la première paire de cylindres, mais avec un nombre de pointes doublé et une forme modifiée du cylindre supérieur de manière correspondante, pour compenser des forces de ressort de rappel de la structure de natte et obtenir une précision de forme correcte.
  4. Procédé selon la revendication 3, caractérisé en ce que la première et la deuxième paire de cylindres sont orientées l'une par rapport à l'autre de telle sorte que les pointes (6) du second cylindre entrent respectivement dans toutes les mailles.
  5. Procédé selon les revendications 1 à 4, caractérisé en ce que les pointes (6) de la première et la deuxième paire de cylindres comportent une forme de pyramide ou une forme de pyramide tronquée, lesquelles selon la position sont réalisées de manière symétrique ou asymétrique.
  6. Procédé selon les revendications 1 à 5, caractérisé en ce qu'une troisième paire de cylindres est associée à la deuxième paire de cylindres, un premier cylindre (14.1) étant pourvu de logements de guidage pour les fils métalliques (11), ce qui permet de positionner de manière précise sur ce cylindre les nœuds de treillis (4) reliant les fils métalliques (11) et de les pousser dans le logement de guidage de disques (12) prévus sur le second cylindre (14.2) et disposés dans la direction axiale à une distance mutuelle, où en outre entre les disques (12) des pistons (13) sont disposés, lesquels sont orientés centralement par rapport aux nœuds de treillis (4) et poussent ceux-ci dans le bord de coupe (15) du premier cylindre (14.1), ce qui permet de découper les fissures de séparation discontinues restant par le foulage et la séparation des fils métalliques (11) et se finissant sur les nœuds de treillis (4).
  7. Procédé selon la revendication 6, caractérisé en ce que l'installation de coupe est configurée de telle sorte que la zone adjacente aux nœuds de treillis (4) et formée par les fils métalliques (11) qui s'y rencontrent est pourvue d'un petit rayon et l'outil est configuré de telle sorte que, après le processus de coupe, on obtient encore un lissage de la surface avec la mise en place d'une tension de compression.
  8. Dispositif destiné à réaliser le procédé selon les revendications 1 à 7, caractérisé par une unité d'étirage comprenant une première paire de cylindres (5) qui peuvent être entraînés en rotation, où le cylindre de préférence inférieur est réalisé sous la forme d'un cylindre à pointes (5.1) et le cylindre de préférence supérieur pourvu avec des parties jointives et des évidements (7) est réalisé sous la forme d'un cylindre de compression (5.2) qui peut être mis en place contre le cylindre inférieur de telle sorte que les deux cylindres (5) forment entre eux une fente de cylindre pour le matériau métallique profilé en bande (1) d'une structure de natte de type treillis, l'agencement des pointes (6) étant choisi de telle sorte que - dans les deux directions orthogonales - une maille sur deux de la structure de natte est façonnée par une pointe (6), et les pointes (6) du cylindre à pointes (5.1) pénètrent dans les évidements (7) du cylindre de compression (5.2).
  9. Dispositif selon la revendication 8, caractérisé en ce que le cylindre à pointes (5.1) présente du côté du bord une pointe (9) mobile axialement qui est déplacée sur le bord du cylindre à pointes (5.1) par le biais d'une coulisse de commande (10) et étire respectivement une maille sur deux quand on regarde dans la direction longitudinale de la bande.
  10. Dispositif selon la revendication 8 ou 9, caractérisé en ce que l'unité d'étirage présente une autre paire de cylindres pour refaçonner le matériau en bande, cette paire de cylindres correspondant dans sa structure de surface sensiblement à la première paire de cylindres, mais avec un nombre de pointes doublé et une forme modifiée du cylindre supérieur de manière correspondante pour compenser des forces de ressort de rappel présentes dans la structure de natte façonnée du matériau en bande et obtenir une précision de forme correcte.
  11. Dispositif selon la revendication 10, caractérisé en ce que la première et la deuxième paire de cylindres sont orientées l'une par rapport à l'autre de telle sorte que les pointes du second cylindre entrent respectivement dans toutes les mailles de la structure de natte.
  12. Dispositif selon les revendications 8 à 11, caractérisé en ce que les pointes (6) de la première et la deuxième paire de cylindres comportent une forme de pyramide ou une forme de pyramide tronquée, lesquelles selon la position sont réalisées de manière symétrique ou asymétrique.
  13. Dispositif selon les revendications 8 à 12 , caractérisé en ce qu'une troisième paire de cylindres est associée à la deuxième paire de cylindres, le cylindre inférieur (14.1) étant pourvu de logements de guidage pour le positionnement des nœuds de treillis (4) reliant les fils métalliques (11), pendant que, sur le cylindre supérieur (14.2), des disques (12) disposés à une distance mutuelle sont prévus et par lesquels les nœuds de treillis (4) sont poussés dans la direction axiale dans les logements de guidage, où entre les disques (12) des pistons (13) sont disposés, lesquels sont orientés centralement par rapport aux nœuds de treillis (4) et poussent ceux-ci dans le bord de coupe (15) du cylindre inférieur (14.1), ce qui permet de découper les fissures de séparation discontinues restant par le foulage et la séparation des fils métalliques (11) et se finissant sur les nœuds de treillis (4).
  14. Dispositif selon la revendication 13, caractérisé en ce que l'installation de coupe est configurée de manière arrondie de telle sorte que la zone adjacente aux nœuds de treillis (4) et formée par les fils métalliques (11) qui s'y rencontrent est pourvue d'un petit rayon, l'outil étant configuré de telle sorte que, après le processus de coupe, on obtient un lissage de la surface avec la mise en place simultanée d'une tension de compression.
EP18778360.0A 2017-10-07 2018-08-18 Procédé pour déployer et mettre au format un matériau métallique profilé en bande de manière à obtenir une structure de natte de type treillis et dispositif pour réaliser le procédé Active EP3691808B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL18778360T PL3691808T3 (pl) 2017-10-07 2018-08-18 Sposób rozszerzania i formatowania profilowanego metalowego materiału taśmowego do siatkowej struktury maty i urządzenie do przeprowadzania sposobu

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017009311.3A DE102017009311A1 (de) 2017-10-07 2017-10-07 Verfahren zum Ausbreiten und Formatieren von profiliertem metallischem Bandmaterial zu einer netzartigen Mattenstruktur und Vorrichtung zur Durchführung des Verfahrens
PCT/DE2018/000245 WO2019068274A1 (fr) 2017-10-07 2018-08-18 Procédé pour déployer et mettre au format un matériau métallique profilé en bande de manière à obtenir une structure de natte de type treillis et dispositif pour réaliser le procédé

Publications (2)

Publication Number Publication Date
EP3691808A1 EP3691808A1 (fr) 2020-08-12
EP3691808B1 true EP3691808B1 (fr) 2021-11-24

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EP18778360.0A Active EP3691808B1 (fr) 2017-10-07 2018-08-18 Procédé pour déployer et mettre au format un matériau métallique profilé en bande de manière à obtenir une structure de natte de type treillis et dispositif pour réaliser le procédé

Country Status (10)

Country Link
US (1) US11458522B2 (fr)
EP (1) EP3691808B1 (fr)
JP (1) JP7097955B2 (fr)
CN (1) CN111315504B (fr)
DE (1) DE102017009311A1 (fr)
EA (1) EA202090869A1 (fr)
ES (1) ES2907179T3 (fr)
HU (1) HUE057401T2 (fr)
PL (1) PL3691808T3 (fr)
WO (1) WO2019068274A1 (fr)

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GB1442936A (en) * 1973-09-20 1976-07-14 Gen Motors Corp Method and apparatus for making expanded metal lead-acid storage battery grids
US3853626A (en) 1973-09-20 1974-12-10 Gen Motors Corp Method and apparatus for making expanded metal lead-acid battery grids
US4247970A (en) 1979-04-11 1981-02-03 Bernal Rotary Systems, Inc. Apparatus for forming expanded metal such as battery grids
JPS5744428A (en) * 1980-08-28 1982-03-12 Matsushita Electric Ind Co Ltd Manufacture of grid for lead storage battery
DE59307889D1 (de) * 1992-11-24 1998-02-05 Kuehni Ag Verfahren und Vorrichtung zur Herstellung von Streckgittern
JPH1110250A (ja) * 1997-06-19 1999-01-19 Showa Alum Corp エキスパンドメタル製造装置
EP2144721B1 (fr) 2007-05-04 2010-07-14 Karl-Hermann Stahl Procédé de réalisation d'une bande de filons se composant d'une pluralité de filons parallèles entre eux, et bande de filons réalisée selon ce procédé
JP5063443B2 (ja) 2008-03-28 2012-10-31 本田技研工業株式会社 自動二輪車用蒸発燃料処理装置
DE102008050366B4 (de) * 2008-10-02 2010-06-17 Data M Sheet Metal Solutions Gmbh System zum Kaltwalzprofilieren von Profilen mit veränderlichem Querschnitt
DE102010044695A1 (de) 2010-09-08 2012-03-08 Hacanoka Gmbh Verfahren zur Herstellung von netzartigen Metallmatten sowie Vorrichtung zur Durchführung des Verfahrens
CN202606649U (zh) * 2012-04-19 2012-12-19 广州市金洁达机电科技有限公司 一种立体筋网滚压加工装置
CN203556718U (zh) * 2013-10-31 2014-04-23 广东好太太电器有限公司 一种带自动修磨装置的建筑模网扩张网机
CN103551451B (zh) * 2013-11-18 2015-10-28 张朝峰 一种防盗护栏内网拉伸成型设备
CN103962429A (zh) * 2014-04-10 2014-08-06 东华大学 一种用于过滤网成型的方法及结构
CN205183489U (zh) * 2015-12-05 2016-04-27 王菊生 改良型建筑网板滚压机

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Publication number Publication date
HUE057401T2 (hu) 2022-05-28
EP3691808A1 (fr) 2020-08-12
EA202090869A1 (ru) 2020-06-26
CN111315504B (zh) 2022-11-22
BR112020006308A2 (pt) 2020-09-24
JP7097955B2 (ja) 2022-07-08
CN111315504A (zh) 2020-06-19
US20200230684A1 (en) 2020-07-23
DE102017009311A1 (de) 2019-04-11
ES2907179T3 (es) 2022-04-22
US11458522B2 (en) 2022-10-04
WO2019068274A1 (fr) 2019-04-11
PL3691808T3 (pl) 2022-04-19
JP2020536739A (ja) 2020-12-17

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