EP1156894A1 - Streckgitter und werkzeug zur herstellung von streckgitter - Google Patents
Streckgitter und werkzeug zur herstellung von streckgitterInfo
- Publication number
- EP1156894A1 EP1156894A1 EP99964461A EP99964461A EP1156894A1 EP 1156894 A1 EP1156894 A1 EP 1156894A1 EP 99964461 A EP99964461 A EP 99964461A EP 99964461 A EP99964461 A EP 99964461A EP 1156894 A1 EP1156894 A1 EP 1156894A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- predetermined breaking
- expanded
- expanded metal
- nodes
- breaking points
- 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.)
- Granted
Links
Classifications
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12188—All metal or with adjacent metals having marginal feature for indexing or weakened portion for severing
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/12—All metal or with adjacent metals
- Y10T428/12361—All metal or with adjacent metals having aperture or cut
Definitions
- the invention relates to a expanded metal and a tool for producing expanded metal.
- Expanded mesh with meshes is known, which in the delivery state e.g. are diamond-shaped or square-shaped. Due to this geometry, longitudinal expansion and transverse contraction are inevitably coupled. This known property results in a relatively low formability of expanded metal on spatially strongly curved surfaces. This limitation is overcome with difficulty by denomination or folding or cutting and double material.
- a plastically modelable, metallic expanded metal as a reinforcing insert for an arch, web or strip-shaped covering material with high adaptability to complex three-dimensional shapes, usable e.g. as a sealing strip for a ridge or ridge cover is known from DE 36 42 063.
- This cover material consists essentially of an elastomer layer and the expanded metal grid serving as a reinforcing element.
- the expanded metal mesh has an extensibility in the longitudinal direction of 50 to 150% or an extensibility in the transverse direction ⁇ 20%, which are mutually exclusive, and a provision ⁇ 5%.
- a metal expanded metal mesh that can be modeled very well is also known from EP 0 797 486.
- this known expanded metal lattice two lattice nodes are separated by a cut perpendicular to the actual expanded cut, offset from stitch row to stitch row.
- Such an expanded metal lattice is characterized by excellent spatial formability.
- DE 198 21 574.6 it is known from DE 198 21 574.6 to improve the elongation behavior of expanded metal grids by generating an additional transverse corrugation in the sheet, either by using trapezoidal or corrugated sheet metal as the starting material or by introducing the transverse corrugation into flat expanded metal grids in the course of the manufacturing process . Subsequent flat rolling produces S-shaped lattice bars.
- a disadvantage of the known expanded metal is that they cannot be produced economically. The handling compared to normal expanded metal leaves much to be desired.
- the invention has for its object to provide an expanded metal mesh which can be produced economically and can be stretched simultaneously in two directions or, at least in the case of longitudinal expansion, has no transverse contraction.
- the object of the invention is also to provide a tool for the economical production of expanded metal.
- the expanded metal mesh according to the invention is characterized in that it is cut, for example, in such a way that certain webs are connected to one another only very thinly, and thus individual mesh nodes are designed as predetermined breaking points.
- the manufacturing process is thus the same as that of normal expanded metal and the expanded metal produced in this way can also be handled and processed in the same way as normal expanded metal.
- the expanded metal mesh according to the invention has a uniformly smooth surface and does not exist the risk of mutual interlocking, such as, for example, in the case of an expanded mesh according to EP 0 797 486, in which the lattice nodes are severed by a separating cut perpendicular to the actual expanded cut.
- the grids according to the invention can be filled or coated with hardening or with elastic polymerizing or drying substances or masses and thus come e.g. as a plaster base in question and as marketable products known in the roofing area under the term "lead replacement".
- Other possible uses are:
- every second row of stitches can be staggered, or two of three grid nodes can be designed as a predetermined breaking point.
- a further variant consists of continuously designing grids with predetermined breaking points, at least in locally limited grating parts, it being possible for edge regions to be designed without predetermined breaking points to avoid undesired tearing. He ⁇ for the stability and strength can heightening such gratings at an angle and piled in particular at right angles and interconnected at the crossing points.
- the lattice according to the invention with the formation of individual lattice nodes as predetermined breaking points can also be combined with an expanded metal with improved elongation behavior according to DE 198 21 574.6.
- the stretch cuts are made in such a way that certain webs are only connected to one another in a very thin manner, ie predetermined breaking points are formed at these points.
- the connections at these grid nodes, which are designed as predetermined breaking points, are, however, sufficiently stable to only open when the shape is applied in a targeted manner.
- the weakened predetermined breaking lattice nodes can be created with a conventional tool during production by increasing the depth of cut. With such a conventional tool, however, only predetermined breaking grid nodes can be created throughout the entire grid.
- predetermined breaking points are only to be generated in a regular sequence, for example only at every second or third lattice node, this can be done with a tool with tooth bases worked out to different depths. With a "normal" depth of cut, such a tool simultaneously creates conventional lattice knots and, at points with less deeply worked tooth bases, predetermined breaking lattice nodes. Instead of predetermined breaking lattice nodes with a shallower tooth base, individual lattice nodes can be cut smoothly, so that a lattice according to EP 0 797 486 is obtained, i.e. a lattice in which, for example, every second and / or third lattice knot is separated from row of stitches to row of stitches, which results in a lattice which can be shaped in a spherical manner.
- FIG. 3 schematically in viewing direction A in FIG. 1, the illustration of the expanded mesh generation with a tool according to FIG. 2;
- FIG. 4 shows an expanded mesh produced with the shear knife of FIG. 2 with alternately normally connected webs and almost severed webs;
- FIG. 5 shows an expanded mesh corresponding to FIG. 4 in a partially stretched state
- FIG. 6 shows a variant of an expanded metal mesh which is produced with a different knife guide, likewise in a partially stretched state
- FIG. 7 shows an expanded metal mesh, in which two of three webs are each designed as predetermined breaking points
- Fig. 8 two expanded mesh laid at right angles, which are continuously formed with predetermined breaking points;
- Fig. 10-14 schematically in expanded view generated with the shear blades of Figure 9 expanded mesh.
- 15 shows a schematic front view of further shear knife variants
- Fig. 16-22 schematically in plan view with the shear blades of FIG. 15 expanded mesh.
- Expanded mesh is usually produced as shown in FIG. 1.
- the sheet 20 to be stretched is advanced in cycles over a cutting edge 21, which forms a bottom knife.
- An upper knife 22 with a toothed end face 23 lowers onto the sheet metal strip advanced over the cutting edge 21.
- the sheet metal 20 slits along the cutting edge 21 and, with simultaneous stretching, presses the projecting sheet metal strip obliquely downward. A half stitch is formed.
- the top knife lowers e.g. ⁇ _ Mesh width offset laterally, which completes the expanded mesh mesh.
- Expanded mesh tools of known type are used to produce expanded meshes which, without exception, have solid or very slightly differently strong knots and, in between, straight "festooned mesh” webs, which may be slightly corrugated for decorative purposes.
- the distance between the respective nodes cannot be changed systematically and specifically because of the de facto straight webs.
- the substantially expanded for example spherical or hyperboloidal deformability of locally restricted lattice sections and at the same time without undesirable deformations of adjacent lattice areas, it is precisely this knot spacing that is of decisive importance and can be realized economically interesting for the first time using tools modified according to the invention.
- an expanded metal grid is made possible by shaping the shear knife with teeth of different depths.
- a shear knife 1 with teeth 2 is shown schematically in FIG. 2. While the tooth tips 3 are the same throughout, only every second tooth base 4a is as wide as the tooth tips 3. The remaining tooth bases 4b are less deep and narrower. 3 and 4, an expanded mesh 5 can thus be produced with alternately normally connected webs 6a and almost severed webs 6b (predetermined breaking points).
- FIG. 5 shows a similar expanded metal 7 in a partially stretched state.
- the circles 8 denote the almost severed webs 6b, and the points 9a and 9b a previously connected knot.
- the enlargement of the stitches results in an elongation of about 35% without transverse contraction.
- FIG. 6 shows a similar expanded metal 10 with a different knife guide.
- the shear knife is moved twice to the right or to the left, as can be seen from the circles 11 which identify the predetermined breaking points.
- FIG. 8 shows two expanded grids 13a and 13b placed one on top of the other at right angles, which are formed continuously or intermittently with predetermined breaking points 14.
- the superposed grids can be firmly connected to one another by an embedding compound.
- the invention has been described in connection with expanded metal.
- the invention is based on any perforated sheet can be used.
- the expanded metal meshes 13a and 13b in FIG. 8 could also be produced as perforated plates with almost square holes and at the same time incorporated predetermined breaking points 14.
- FIGS. 9 and 15 Further variants of knife contours are shown in FIGS. 9 and 15, with which expanded metal meshes according to FIGS. 10 to 14 and 16 to 22 can be produced.
- the assignment of the knife and the generated expanded metal is illustrated by the corresponding numbers in the drawing figures.
- the knife 0 in FIG. 9 and the associated grid 0 in FIG. 10 represent the prior art, while the knives 1 / 2.1-1 / 2.4 in FIG. 9 and the knives 2 / 3.1-2 / 3.4 in FIG. 15 have realized one or more of the following features:
- Features 1 to 5 are preferably implemented in a regular sequence across the width of the tool, for example on every second or third tooth, on two of three teeth or in other suitable combinations.
- weakened knots predetermined breaking points
- already severed "loose” knots are obtained, whereby by conventional knife offset by 1/2 mesh width between two strokes with knives acc. Fig. 9 and 15 expansion grid with partly straight, partly angled webs according to Fig. 11 to 14 and 16 to 19 receives while knives acc. 15 with a mesh size of 3/2, 5/2, ... (2n + l) / 2 20 to 22 result in a larger offset of expansion grids with consistently angled webs.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cell Electrode Carriers And Collectors (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
- Meat, Egg Or Seafood Products (AREA)
- Details Of Garments (AREA)
- Adornments (AREA)
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19910312 | 1999-03-05 | ||
DE19910312A DE19910312C2 (de) | 1999-03-05 | 1999-03-05 | Streckmetall, Lochgitter oder dergleichen Gitterstruktur |
PCT/DE1999/004104 WO2000053356A1 (de) | 1999-03-05 | 1999-12-23 | Streckgitter und werkzeug zur herstellung von streckgitter |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1156894A1 true EP1156894A1 (de) | 2001-11-28 |
EP1156894B1 EP1156894B1 (de) | 2003-04-23 |
Family
ID=7900232
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99964461A Expired - Lifetime EP1156894B1 (de) | 1999-03-05 | 1999-12-23 | Streckgitter und werkzeug zur herstellung von streckgitter |
Country Status (6)
Country | Link |
---|---|
US (1) | US6696169B1 (de) |
EP (1) | EP1156894B1 (de) |
AT (1) | ATE238112T1 (de) |
AU (1) | AU3032100A (de) |
DE (2) | DE19910312C2 (de) |
WO (1) | WO2000053356A1 (de) |
Families Citing this family (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19913028C1 (de) * | 1999-03-23 | 2000-08-24 | Joachim Bruensch | Obermesser für eine Vorrichtung zur Herstellung eines Streckmetallgitters |
DE19922202B4 (de) * | 1999-05-12 | 2004-02-26 | Wilhelm Röttger | Plastisch verformbare Materialbahn |
DE19934060B4 (de) * | 1999-07-23 | 2004-03-04 | Wilhelm Röttger | Plastisch verformbare Materialbahn und Verfahren zu ihrer Herstellung |
DE10045002B4 (de) * | 2000-09-08 | 2004-12-23 | Röttger, Wilhelm | Plastisch verformbare Materialbahn |
DE20116525U1 (de) | 2001-09-28 | 2002-03-28 | Technische Universität Dresden, 01069 Dresden | Metallformkörper mit einer gestalteten textilen Oberfläche |
DE10359324B4 (de) * | 2003-10-02 | 2005-11-03 | Bruno Manuel Huercano | Bauelemente aus Lochblechen |
US20050228494A1 (en) * | 2004-03-29 | 2005-10-13 | Salvador Marquez | Controlled separation heart valve frame |
DE102004047805A1 (de) * | 2004-09-29 | 2006-03-30 | Altratec Montagesysteme Gmbh | Profilstück |
PL1945386T3 (pl) * | 2005-09-20 | 2017-07-31 | Helix International, Inc | Maszyna i sposób wytwarzania rur z siatki metalowej rozciąganej ze szwem spiralnym zakładkowym z pełnej blachy zwojowej |
US8578577B2 (en) * | 2005-09-20 | 2013-11-12 | Helix International, Inc. | Machine to produce expanded metal spirally lock-seamed tubing from solid coil stock |
US8696781B2 (en) | 2009-09-29 | 2014-04-15 | Wallner Tooling\Expac, Inc. | Expanded metal and process of making the same |
JP6085878B2 (ja) * | 2012-09-12 | 2017-03-01 | 内山工業株式会社 | 金属板の加工方法及び金属製の網体 |
US9708816B2 (en) | 2014-05-30 | 2017-07-18 | Sacks Industrial Corporation | Stucco lath and method of manufacture |
US9752323B2 (en) | 2015-07-29 | 2017-09-05 | Sacks Industrial Corporation | Light-weight metal stud and method of manufacture |
US9797142B1 (en) | 2016-09-09 | 2017-10-24 | Sacks Industrial Corporation | Lath device, assembly and method |
CN111566292B (zh) | 2017-08-14 | 2022-05-17 | 斯特克特电线有限公司 | 不同长度的金属龙骨 |
DE102017126315A1 (de) * | 2017-11-09 | 2019-05-09 | GRAMMER Interior Components GmbH | Streckmetall mit Maschen unterschiedlicher Maschenform |
US11351593B2 (en) | 2018-09-14 | 2022-06-07 | Structa Wire Ulc | Expanded metal formed using rotary blades and rotary blades to form such |
DE102020212133A1 (de) | 2020-09-25 | 2022-03-31 | Brose Fahrzeugteile SE & Co. Kommanditgesellschaft, Coburg | Zur Energieabsorption vorgesehenes Bauteil und Verfahren zur Herstellung von Bauteilen mit gitterförmiger Bauteilstruktur |
DE102020212131A1 (de) | 2020-09-25 | 2022-03-31 | Brose Fahrzeugteile SE & Co. Kommanditgesellschaft, Coburg | Zur Energieabsorption vorgesehenes Bauteil |
DE102020212130A1 (de) | 2020-09-25 | 2022-03-31 | Brose Fahrzeugteile SE & Co. Kommanditgesellschaft, Coburg | Kühlerbaugruppe für ein Fahrzeug |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1210849A (en) * | 1914-11-27 | 1917-01-02 | Charles H Scammell Company | Metal lath. |
US1437746A (en) * | 1916-12-07 | 1922-12-05 | Robert S Allyn | Expanded-metal fabric |
US2018085A (en) * | 1934-05-29 | 1935-10-22 | Allegheny Steel Co | Method of making flat expanded grilles |
US2214247A (en) * | 1938-06-27 | 1940-09-10 | Standard Railway Equipment Mfg | Antiskid tread for running boards and the like |
US2474778A (en) * | 1945-12-05 | 1949-06-28 | Wheeling Steel Corp | Backed lath and manufacture thereof |
FR2435573A1 (fr) * | 1978-09-08 | 1980-04-04 | Svensson Lennart | Linteau destine a supporter la premiere assise du muraillement, d'arcs ou d'arceaux |
DE8535675U1 (de) * | 1985-12-19 | 1987-09-10 | Braas & Co Gmbh, 6000 Frankfurt | Plastisch verformbare Abdeckvorrichtung |
JPH06333572A (ja) * | 1993-05-19 | 1994-12-02 | Matsushita Electric Ind Co Ltd | 鉛蓄電池 |
JPH06333573A (ja) * | 1993-05-19 | 1994-12-02 | Matsushita Electric Ind Co Ltd | 鉛蓄電池 |
EP0797486B1 (de) * | 1994-12-14 | 1998-06-17 | Albrecht KLÖCKNER | Gitter, insbesondere flächiges gitter (gittermatte) |
US6447928B2 (en) * | 1998-10-01 | 2002-09-10 | Gem City Engineering Company | Process of manufacturing a core metal insert |
-
1999
- 1999-03-05 DE DE19910312A patent/DE19910312C2/de not_active Expired - Fee Related
- 1999-12-23 DE DE59905251T patent/DE59905251D1/de not_active Expired - Lifetime
- 1999-12-23 AT AT99964461T patent/ATE238112T1/de not_active IP Right Cessation
- 1999-12-23 WO PCT/DE1999/004104 patent/WO2000053356A1/de active IP Right Grant
- 1999-12-23 US US09/914,887 patent/US6696169B1/en not_active Expired - Fee Related
- 1999-12-23 AU AU30321/00A patent/AU3032100A/en not_active Abandoned
- 1999-12-23 EP EP99964461A patent/EP1156894B1/de not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
---|
See references of WO0053356A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE19910312A1 (de) | 2000-11-16 |
DE59905251D1 (de) | 2003-05-28 |
US6696169B1 (en) | 2004-02-24 |
AU3032100A (en) | 2000-09-28 |
EP1156894B1 (de) | 2003-04-23 |
WO2000053356A1 (de) | 2000-09-14 |
ATE238112T1 (de) | 2003-05-15 |
DE19910312C2 (de) | 2002-03-14 |
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