EP2628554B1 - Procédé de modification de la largeur d'une bande de tôle - Google Patents
Procédé de modification de la largeur d'une bande de tôle Download PDFInfo
- Publication number
- EP2628554B1 EP2628554B1 EP13155689.6A EP13155689A EP2628554B1 EP 2628554 B1 EP2628554 B1 EP 2628554B1 EP 13155689 A EP13155689 A EP 13155689A EP 2628554 B1 EP2628554 B1 EP 2628554B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- strip
- sheet metal
- shoulder
- sheet
- longitudinal direction
- 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.)
- Not-in-force
Links
Images
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
- B21D13/00—Corrugating sheet metal, rods or profiles; Bending sheet metal, rods or profiles into wave form
- B21D13/04—Corrugating sheet metal, rods or profiles; Bending sheet metal, rods or profiles into wave form by rolling
- B21D13/045—Corrugating sheet metal, rods or profiles; Bending sheet metal, rods or profiles into wave form by rolling the corrugations being parallel to the feeding movement
-
- 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
- B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
- B21D5/06—Bending sheet metal along straight lines, e.g. to form simple curves by drawing procedure making use of dies or forming-rollers, e.g. making profiles
- B21D5/08—Bending sheet metal along straight lines, e.g. to form simple curves by drawing procedure making use of dies or forming-rollers, e.g. making profiles making use of forming-rollers
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D3/00—Roof covering by making use of flat or curved slabs or stiff sheets
- E04D3/24—Roof covering by making use of flat or curved slabs or stiff sheets with special cross-section, e.g. with corrugations on both sides, with ribs, flanges, or the like
- E04D3/30—Roof covering by making use of flat or curved slabs or stiff sheets with special cross-section, e.g. with corrugations on both sides, with ribs, flanges, or the like of metal
Definitions
- the invention relates to a method according to the preamble of claim 1 for changing the width of a metal sheet, in particular of such metal sheets to be used in the construction sector for the production of roof or facade cladding, and a method for producing such metal sheets.
- Such roof claddings or claddings of sheet metal sheets are known and are typically produced by unwinding a sheet metal sheet material from a coil in the desired length and by means of a roll former or a roll bending in a manufacturing plant or on site at the construction site, until it receives the desired profile.
- a profile typically comprises, from a sheet metal surface at the opposite longitudinal edges of the web, vertically upstanding edge flanges at which adjacent webs are connected to each other and to a substructure, possibly with the use of suitable holding elements.
- reinforcing longitudinal profiles are formed at greater widths for reinforcement, e.g. are trapezoidal in cross-section and also extend over the entire longitudinal direction of the web.
- Such metal sheets can be several meters wide and a multiple of them long.
- the formed sheet metal sheets are symmetrical and rectangular in plan view, so at least have a constant width over the length of the web.
- Conical webs are achieved in the prior art by cutting the web material longitudinally prior to forming the side edge flanges.
- An alternative method used in the US 2005/0223771 A1 described reaches a certain conicity of the web in the longitudinal direction in that starting from a rectangular or uniformly wide web with edge flanges partially bead-like depressions of different but limited length and arrangement, which extend in the longitudinal direction of the web are pressed into the web surface, whereby Material is drawn in the transverse direction and the width of the web is reduced.
- a disadvantage of this solution is that the bead-like depressions on the panel remain visible from the outside and are irregularly shaped, which is often undesirable from an aesthetic or architectural point of view, because webs of uneven width are used precisely in those buildings in which these aspects of are of particular importance.
- the bead-like depressions in the surface moisture and dirt accumulate and hold.
- the machines for producing the bead-like depressions are relatively expensive and expensive.
- the DE 2806680 A1 relates to a method of forming a cover panel having a plurality of adjacent surfaces lying in different planes and thus simulating the appearance of a series of adjacent shingles.
- a flat strip of aluminum is first deformed at the longitudinal edges to produce an upper lip and a bottom flange.
- the shingles-like areas are pressed in between each raised areas by inserting the sheet metal strip in positionally stable arrangement of the longitudinal lip and the bottom flange between parallel forming rollers, through which the step-like shoulders between the raised and the depressed shingle-like areas are impressed in the transverse direction of the web ,
- the object of the invention is to propose a method for changing the width of a metal sheet and a method for producing metal sheets for use in roof and / or facade cladding, which is at least improved with respect to some of the disadvantages described above.
- the width of a sheet-metal web is changed by forming at least one step-like step in the longitudinal direction of the sheet-metal web, and simultaneously or subsequently changing the changing angles of the step-like step in the longitudinal direction of the sheet-metal strip continuously or in sections, thereby to change the width of the metal sheet.
- the height of the step-like heel in the longitudinal direction of the sheet metal web is kept constant despite changing changing angle of the step-like heel.
- the step-like step has a Z-like configuration in cross-section through the width of the web, and the change angles are those angles located between the opposite sides of the riser-like web of the step-like heel and the horizontal and parallel major surfaces of the metal web thereafter.
- the method according to the invention is thus simplified comparable to a "non-parallel, accordion-like" deformation of the sheet metal web.
- a reduction of the change angle over a certain length thus causes a total of a taper of the metal sheet and an increase in the change angle causes a total broadening of the metal sheet.
- the advantage of this method is that the surface of the web in plan view except the continuous longitudinal edges of the heel, which are often already present as stiffening or longitudinal profiling, has no irregular recesses and the smooth and harmonious appearance of a cladding is not affected. Furthermore, no waste occurs due to trimming and that for changing the angle of change Required machines largely correspond to the machines already used for forming the stiffening or longitudinal profiles with only minor modifications. In addition, the fact that the height of the step-like shoulder is kept constant in the longitudinal direction of the sheet web despite changing changing angle of the step-like paragraph, an installation of the width-modified sheet metal in a composite with side by side or longitudinally successively immediately adjacent other tracks without generating steps , Gaps or sloping surfaces possible.
- the method offers the possibility of achieving large changes in width by either forming several step-like shoulders in the longitudinal direction next to one another or by applying the method of changing the step angles to the stiffening or longitudinal profiles, for example in trapezoidal shape, which are to be provided anyway.
- an edge flange is first formed on at least one longitudinal edge of the sheet metal sheet material. Then, a step-like step in the longitudinal direction of the sheet metal sheet material is formed at a distance from the edge flange.
- the width of the sheet metal web material in the longitudinal direction of the sheet metal sheet material is at least partially changed by applying the method of the invention explained above to the step-like step.
- the height of the edge flange is kept constant at the same time, so that the sheet metal tracks which are modified in terms of width can be connected to one another in a manner known per se without any problems at the edge flanges, without correspondingly modified fasteners are needed.
- the in the Fig.1 in cross-section and only one-sided profile sheet metal strip for use as an architectural cladding for the production of roof or facade cladding has at one or both of the opposite longitudinal edges a preferably perpendicularly from a sheet metal plane upstanding edge flange 3, where adjacent tracks in per se known Way are connected to each other and with a substructure, possibly using suitable holding elements.
- the web height 5 of the web ie the vertical distance between an upper edge of the edge flange 3 and a lower support plane of the web, must be constant over the entire length of the web.
- profilings 11 can also be formed in a manner known per se, which allow a positive connection with complementarily shaped profilings on the edge flange of a web to be laid next to it.
- a trapezoidal stiffening profiling 12 which extends over the entire length and, in particular for larger widths, increases the buckling and buckling strength of the web, is offset toward the middle region of the sheet metal web.
- the stiffening profiles can also be designed in the form of semi-circular cross-section beads.
- a step-like shoulder 13 in the longitudinal direction of the sheet metal web is formed at a distance 10 from the edge flange 3.
- the step-like shoulder 13 has a "Z-like” configuration in cross-section, which is formed by a riser-like web 4 and each subsequent horizontal and parallel vertical upper and lower major surfaces 1 and 2 of the metal sheet.
- the term "Z-like” in this sense includes not only such a contour in which the explained below change angles of the transverse or connecting web are less than 90 degrees, but also compressed and stretched configurations in which these angles are 90 degrees or are also greater than 90 degrees.
- the 2a and 2b show the detail of the step-like paragraph enlarged to illustrate the inventive principle for reducing and increasing the width of the sheet metal strip.
- a step-like step is selected which is rectangular, so that the change angles ⁇ and ⁇ (the angles, as shown, between the opposite sides of the riser-like web 4 and the respective subsequent major surfaces 1 and 2 of the sheet metal web) are each 90 degrees.
- the initial configuration but also one can be selected in which the change angle of 90 degrees are different and the web 4 so that runs obliquely, as in Fig. 1 is indicated.
- the changing angles ⁇ and ⁇ in the longitudinal direction of the metal sheet are now preferably reduced continuously to ⁇ 1 and ⁇ 1, thereby causing a rejuvenation of the sheet metal, because material of the metal sheet in the width direction from the right and left of the paragraph in the direction of N ( 2a ).
- the changing angle of the step-like shoulder to achieve the taper or the broadening of the metal sheet are each changed substantially symmetrically and in the same direction.
- the width of the riser-type web 4 in the transverse direction must start from a vertical riser, both in accordance with FIG 2a as well as according to 2b be increased in each case, because in a folding without this change, ie at a constant wide web 4, the vertical height of the riser would decrease.
- the edge further to the inside of the web are fixed - the material from the area of the main surface 1 substantially "flows" into the web 4 only in the direction F1, so that the width 10 of this surface 1 is slightly reduced and this taper to the through the folding caused mainly for the rejuvenation of the web width overall responsible movement of the areas 1 and 2 added.
- the in 2b is shown, the sheet material not only moved in the direction W, but also flows, such as indicated by the arrows F1 and F2, in the web 4, so that the width of the web 4 is increased and the vertical height of the riser can be kept constant.
- the width 10 of the surface 1 is slightly reduced, and this taper reduces the folding caused mainly for the widening of the web width total responsible movement of the surfaces 1 and 2 to a certain extent.
- this "subsequent flow" can be restricted to the area of the respective other edge or the subsequent flow can be effected at both edges.
- a distance 10 between the edge fold or flange 3 of the sheet metal and the edge 9 of the step-like paragraph 13 are kept constant in the longitudinal direction of the sheet metal web. This is achieved by appropriate means of the forming machine (roll former or roll bending device) and clamping or fixing this end portion or the edges of the paragraph.
- the inner edge 14 can also be fixed, so that the change caused by the shortening or lengthening of the web 4 only affects the distance 10.
- the forming of the step-like step in the longitudinal direction of the sheet metal web and changing the change angle of the step-like step in the longitudinal direction of the sheet metal web can take place simultaneously during one or more successive forming steps or sequentially.
- the transformation of the metal sheet for the purpose of tapering / broadening has been described above only on one side in the transverse direction of the sheet metal web.
- the metal sheet can also be turned after a pass through the roll former or the roll bending device and the corresponding deformation can be made symmetrically or asymmetrically on the other longitudinal side of the metal sheet.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
- Roof Covering Using Slabs Or Stiff Sheets (AREA)
Claims (9)
- Un procédé de modification de la largeur d'une bande de tôle, comprenant les stades :formage d'au moins un ressaut (13) de type en gradin dans la direction longitudinale de la bande de tôle, etmodification d'angles (α, β) alternes du ressaut (13) de type en gradin dans la direction longitudinale de la bande de tôle pour modifier ainsi la largeur de la bande de tôle,caractérisé en ce queon maintient constante la hauteur (h) du ressaut (13) de type en gradin dans la direction longitudinale de la bande de tôle en dépit de la modification des angles (α, β) alternes du ressaut (13) de type en gradin, eton modifie continuellement ou par section dans la direction longitudinale de la bande de tôle les angles (α, β) alternes du ressaut (13) de type en gradin.
- Le procédé suivant la revendication 1, dans lequel en rapetissant les angles (α, β) alternes, on provoque un rétrécissement de la bande de tôle et, par un agrandissement des angles (α, β) alternes, un élargissement de la bande de tôle.
- Le procédé suivant la revendication 2, dans lequel on modifie symétriquement et dans le même sens les angles (α, β) alternes du ressaut (13) de type en gradin pour obtenir le rétrécissement ou l'agrandissement de la bande de tôle.
- Le procédé suivant l'une des revendications 1 à 3, dans lequel on maintient constante, dans la direction longitudinale de la bande de tôle, une distance (10) entre un pli (3) de bord de la bande de tôle et une arête (9) du ressaut (13) de type en gradin.
- Le procédé suivant l'une des revendications 1 à 4, dans lequel on effectue le formage du ressaut (13) de type en gradin dans la direction longitudinale de la bande de tôle et la modification des angles (α, β) alternes du ressaut (13) de type en gradin dans la direction longitudinale de la bande de tôle en même temps pendant un ou pendant plusieurs stades de déformation successifs ou l'un après l'autre.
- Le procédé suivant l'une des revendications 1 à 5, dans lequel on effectue le formage du ressaut (13) de type en gradin dans la direction longitudinale de la bande de tôle et la modification des angles (α, β) alternes du ressaut (13) de type en gradin dans la direction longitudinale de la bande de tôle par un profileur à galet ou par un dispositif de pliage.
- Le procédé suivant l'une des revendications 1 à 6, dans lequel le ressaut (13) de type en gradin a en section transversale une configuration de type en Z et les angles (α, β) alternes se trouvent entre les côtés opposés du flan (4) de type en contremarche et les surfaces (1, 2) principales horizontales s'y raccordant respectivement et parallèles de la bande de tôle.
- Un procédé de fabrication de bandes de tôle qui se rétrécissent et/ou s'élargissent coniquement dans la largeur pour les utiliser dans des revêtements de toit et/ou de façade, comprenant les stades :déroulement d'un matériau d'une bande de tôle d'une bobine (coil),formation d'un rebord (3) sur au moins un bord longitudinal du matériau de bande de tôle,formation d'un ressaut (13) de type en gradin dans la direction longitudinale du matériau de bande de tôle à distance du rebord (3), etmodification au moins par section de la largeur du matériau de bande de tôle dans la direction longitudinale du matériau de bande de tôle, en appliquant le procédé suivant l'une des revendications 1 à 7 au ressaut (13) de type en gradin.
- Le procédé suivant la revendication 8, dans lequel on modifie la largeur du matériau de bande de tôle dans la direction longitudinale du matériau de bande de tôle, en appliquant le procédé suivant l'une des revendications 1 à 7 au moins par section à des profilages (12) longitudinaux de raidissement du type en gradin dans la partie médiane du matériau de bande.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102012003155.6A DE102012003155B4 (de) | 2012-02-16 | 2012-02-16 | Verfahren zum Verändern der Breite einer Blechbahn |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2628554A1 EP2628554A1 (fr) | 2013-08-21 |
EP2628554B1 true EP2628554B1 (fr) | 2015-04-08 |
Family
ID=47748410
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP13155689.6A Not-in-force EP2628554B1 (fr) | 2012-02-16 | 2013-02-18 | Procédé de modification de la largeur d'une bande de tôle |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP2628554B1 (fr) |
DE (1) | DE102012003155B4 (fr) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102016112481B4 (de) * | 2016-07-07 | 2023-04-27 | Technische Universität Darmstadt | Verfahren zum Umformen eines umformbaren Materialstreifens |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0776904A (ja) * | 1993-09-06 | 1995-03-20 | Gantan Beauty Kogyo Kk | 縦葺き屋根板及び縦葺き屋根の施工方法 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3756057A (en) * | 1970-05-11 | 1973-09-04 | Roll Forming Corp | Roll forming |
US4130974A (en) * | 1977-02-16 | 1978-12-26 | Alcan Aluminum Corporation | Siding panels and the method of production |
EP1331048A1 (fr) | 2002-01-28 | 2003-07-30 | Corus Bausysteme GmbH | Tôle metallique utilisable en construction, procédé et dispositif pour produire de telles tôles |
US7111481B2 (en) * | 2004-02-17 | 2006-09-26 | The Bradbury Company | Methods and apparatus for controlling flare in roll-forming processes |
-
2012
- 2012-02-16 DE DE102012003155.6A patent/DE102012003155B4/de not_active Expired - Fee Related
-
2013
- 2013-02-18 EP EP13155689.6A patent/EP2628554B1/fr not_active Not-in-force
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0776904A (ja) * | 1993-09-06 | 1995-03-20 | Gantan Beauty Kogyo Kk | 縦葺き屋根板及び縦葺き屋根の施工方法 |
Also Published As
Publication number | Publication date |
---|---|
DE102012003155B4 (de) | 2016-03-17 |
DE102012003155A1 (de) | 2013-08-22 |
EP2628554A1 (fr) | 2013-08-21 |
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