EP1439921B1 - Procede et outil pour former des convexites - Google Patents

Procede et outil pour former des convexites Download PDF

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Publication number
EP1439921B1
EP1439921B1 EP02773047A EP02773047A EP1439921B1 EP 1439921 B1 EP1439921 B1 EP 1439921B1 EP 02773047 A EP02773047 A EP 02773047A EP 02773047 A EP02773047 A EP 02773047A EP 1439921 B1 EP1439921 B1 EP 1439921B1
Authority
EP
European Patent Office
Prior art keywords
convexities
plate
tool
rolling
roller
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.)
Expired - Lifetime
Application number
EP02773047A
Other languages
German (de)
English (en)
Other versions
EP1439921A1 (fr
Inventor
Gunnar Sundhagen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP1439921A1 publication Critical patent/EP1439921A1/fr
Application granted granted Critical
Publication of EP1439921B1 publication Critical patent/EP1439921B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B21D28/00—Shaping by press-cutting; Perforating
    • B21D28/24—Perforating, i.e. punching holes
    • B21D28/36—Perforating, i.e. punching holes using rotatable work or tool holders
    • 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
    • B21D28/00—Shaping by press-cutting; Perforating
    • B21D28/02—Punching blanks or articles with or without obtaining scrap; Notching
    • B21D28/10—Incompletely punching in such a manner that the parts are still coherent with the work
    • 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
    • B21D31/046—Expanding other than provided for in groups B21D1/00 - B21D28/00, e.g. for making expanded metal making use of rotating cutters

Definitions

  • the present application regards a tool for providing convexities in accordance with the preamble of the appended Claim 1 (see for example SE-C-507 588).
  • the main object of the invention according to the above publications is, as in the case of the present invention, to allow convexities to be formed across a larger area of a plate than that which is possible with methods and tools according to prior art.
  • Such a plate with convexities across a large area such as e.g. the entire plate may as an example be used as a mounting plate in e.g. shop interiors, or as a support for floors, the plate with convexities ensuring appropriate spacing between e.g. a wooden floor and a concrete floor.
  • heat may be introduced by blowing air in through the gaps formed between the convexities in the plate.
  • the gaps distribute air well.
  • the plates may be used as a sound absorbing wall where, as an example, two such walls may be arranged with insulation in between, the purpose of the convexities being to disperse the reflected sound.
  • the plates may also be used as a light shade, where a light source is fitted on the back of the plate and the plate has the effect of diffusing the light, providing indirect lighting from e.g. a wall or a ceiling; as an acoustic ceiling plate; or for anchoring of reinforcement bars, where the plate may form a connection between several reinforcement bars and maintain the correct spacing between these; as decorative panels on walls or ceilings, or optionally for other decorative purposes, e.g. as a lamp shade; and as a hinged joint, where convexities formed along the respective side edges of two plates are placed into engagement with each other and a hinge pin is threaded through the convexities.
  • Plates formed in the above manner have a high strength to thickness ratio.
  • a method in which the plate body is inserted between two halves of a tool.
  • the tool halves are brought together and cooperate to stamp out a first set of convexities in a first direction relative to the main surface of the plate body and a second set of convexities in another, opposite direction relative to the main surface of the plate body.
  • the convexities are formed along a straight line across the plate body between two of the side edges of the plate body.
  • the plate body is held to ensure that its main surface maintains its orientation, and each convexity in the first set of convexities is stamped out with a length that when measured from one side of the convexity at a point by the main surface of the plate body to the other side of the convexity at a point by the main surface of the plate body, essentially corresponds to the length of each convexity in the second set of convexities stamped out.
  • Achieving an equal length for the convexities on either side of the plate is important in order to ensure that the plate does not arch after the stamping has been carried out, but maintains its essentially plane configuration.
  • the method is implemented in a tool comprising a first and a second tool half, the tool halves having a plurality of protuberances arranged in a straight line and separated by a plurality of interspaces.
  • the protuberances on the first tool half fit into the interspaces on the second tool half and vice versa.
  • this tool is equipped with a surface that lies in the dividing plane of the tool when the tool halves have been brought together fully. When the tool halves are brought together all the way, a workpiece is retained on this surface.
  • the protuberances have a length that when measured from a point in the dividing plane of the tool over the top of the protuberance to a point in the dividing plane on the opposite side of the protuberance, is equal to the corresponding length across the protuberances on the second tool half.
  • the invention is realized by means of a tool in which the lower tool half is fixed and the upper tool half travels vertically down towards the lower tool half, in the same way as a punching (stamping) tool.
  • a punching (stamping) tool In this manner, one line of convexities is stamped out at a time.
  • several lines of convexities can be stamped out at the same time using a tool with several sets of protuberances.
  • Such a tool is highly suited for the production of smaller quantities of the above type of plate.
  • the invention is characterised by the characteristics that appear from the characterising part of the appended independent claim.
  • the dependent claims describe advantageous embodiments of the invention.
  • Figure 1 shows a plate 1 generally comprising a first side face 2a and a second side face 2b on the opposite side of the first side face 2a.
  • areas 3 have been stamped out from this plate 1 in a first direction, so that the areas 3 form a curved surface at a distance from the first side face 2a.
  • Other areas 4 have been stamped out from the plate 1 in an opposite direction, forming a second curved surface at a distance from the second side face 2b, so that the areas 3 and 4 end up alternating in a row 5 across the plate (see Figure 1).
  • Several such rows 5 may be provided, with separation, defining areas 6 in between, which areas 6 lie in the plane main portion 2 of the plate.
  • openings 7 for insertion/introduction of e.g. hooks, bolts, wire, cords, cables, pipes, air, heat etc.
  • the alternating areas 3 and 4 are formed with alternating short and long lengths.
  • the areas 3a have a greater length than the areas 3b, and likewise the areas 4a have a greater length than the areas 4b.
  • NO 19984531 describes how a plate formed in this manner may be used as a mounting board. Reference is made to this application for further information on how to achieve this.
  • the stamped-out areas 3 and 4 may have an optional cross sectional shape, e.g. edged as shown, or circular.
  • Figure 5 shows a rolling machine for production of a plate having convexities as specified above.
  • the machine consists of a machine bed 10 on which is placed a roller support 11 carrying a lower roller 12 and an upper roller 13.
  • Tables 14 and 15 are provided upstream and downstream of the rollers for guiding a plate 1.
  • Figure 6 shows a cutout of the rollers 12 and 13 and the plate 1.
  • the recesses 16 in the roller 12 coincide with the raised parts 17 of the roller 13
  • the recesses 16 in the roller 13 coincide with the raised parts 17 of the roller 12.
  • Figure 7 shows a longitudinal section through the rollers 12 and 13 and the plate 1.
  • Figure 7 b there is shown a detail of the roll-nip between the rollers 12 and 13.
  • a raised part 17 on the roller 12 goes into a recess 16 in the roller 13.
  • the clearance 23 defines the thickness of the plate material in the convexity 3 that is formed by the interworking of the raised part 17 and the recess 16.
  • the plate material may be rolled somewhat thinner than in the convexities 3 and 4. This is particularly important in the areas 6 adjacent to the convexities 3 and 4 in the axial direction of the rollers, in order to prevent the plate from curving.
  • the rolling in this area must be such that the rolling-induced extension of the areas 6 in the direction of rolling corresponds to the extension of the plate in the areas of the convexities 3 and 4, in the direction of rolling, which extension is caused by the buckling of these convexities.
  • Figure 8 shows the rolling of a plate where the convexities 3 and 4 extend continuously across the width of the entire plate. In this case, there is no need to roll the plate in the area 20 between the convexities, as this will have no effect on the curving of the plate 1.
  • Figure 9 shows rolling of a plate where the rows of convexities 3, 4 extend in the direction of rolling. Moreover, two sets of rollers are shown.
  • the first stage of rolling is carried out by rollers 12 and 13.
  • This rolling constitutes a partial formation of the convexities 3 and 4, i.e. the plate material is pushed out of the main plane of the plate, and the plate material is cut to form openings 7.
  • the next rolling stage which takes place between rollers 21 and 22, the convexities are pushed all the way out of the main plane of the plate 1.
  • Figure 10 illustrates the fact that the plate material between the convexities 3 and 4 has been rolled so as to be thinner than that of the convexities 3 and 4, thus thickness y is less than thickness x.
  • Both the size and length of the convexities, as well as the length of the interspaces, may be varied in dependence on the area of application.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Cell Separators (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Dry Shavers And Clippers (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Gripping On Spindles (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Machines For Manufacturing Corrugated Board In Mechanical Paper-Making Processes (AREA)

Claims (6)

  1. Outil pour produire des convexités dans une plaque, comprenant une première moitié d'outil (12) et une seconde moitié d'outil (13), dans lesquelles au moins une moitié d'outil (12, 13) comporte une pluralité de parties dressées (17) agencées dans une rangée le long d'une ligne droite, et au moins une moitié d'outil comporte une pluralité d'évidements (16), les parties dressées (17) sur la première moitié d'outil (21) se logeant dans les évidements (16) sur la seconde moitié d'outil (13),
    caractérisé en ce que chaque moitié d'outil (12, 13) est un rouleau comprenant une surface (18, 19) et définissant, dans l'emprise qui les sépare, l'épaisseur de plaque autour des convexités (3, 4), et maintenant la plaque (1) dans un plan dans lequel les parties dressées (17) du premier rouleau (12) ont une longueur qui, lorsqu'elle est mesurée depuis un point dans ledit plan à travers le sommet de la partie dressée jusqu'à un point dans ledit plan sur le côté opposé de la partie dressée (17), est égale à la longueur correspondante à travers les parties dressées (17) sur le second rouleau (13), en ce que les parties dressées (17) sur un rouleau respectif et les évidements (16) dans un rouleau respectif passent les uns devant les autres dans l'emprise entre les rouleaux avec un faible jeu ou sans jeu, amenant la plaque (1) à être découpée entre la partie dressée (17) et l'évidement (16) respectif afin de former une ouverture (7) entre une convexité (3) et la convexité adjacente (4).
  2. Outil selon la revendication 1, caractérisé en ce que chaque rouleau comprend des parties dressées (17) et des évidements.
  3. Outil selon l'une des revendications précédentes, caractérisé en ce que les rouleaux, au moins dans une zone alignée avec les rangées respectives de convexité, ont des surfaces (18, 19) qui forment, entre elles, une distance plus petite dans l'emprise qu'un jeu (23) entre les évidements (16) et les parties dressées (17) appariés respectifs, de sorte que la plaque est laminée pour devenir plus mince dans une zone (6) entre les convexités et dans la rangée de convexités que le matériau de la plaque dans les convexités.
  4. Outil selon la revendication 3, caractérisé en ce que les rouleaux sont construits d'une manière telle que la zone (6) est laminée d'une manière telle qu'elle assure que l'extension, induite par le laminage, des zones (6) dans la direction du laminage, correspond à l'extension de la plaque dans les zones des convexités (3, 4), dans la direction de laminage, extension qui est provoquée par le flambage de ces convexités.
  5. Outil selon l'une des revendications précédentes, caractérisé en ce qu'il comprend au moins quatre rouleaux (12, 13, 21, 22) dans deux étages de laminage, permettant ainsi une formation partielle des convexités (3, 4) et découpant la plaque pour créer les ouvertures (7) dans le premier étage de laminage, et l'estampage des convexités dans un second étage de laminage.
  6. Outil selon la revendication 5, caractérisé en ce que, dans le second étage de laminage, les parties dressées (17) et les évidements (16) sur des rouleaux opposés (21, 22) sont espacés dans la direction longitudinale, pour éviter que les rouleaux se touchent pendant le laminage.
EP02773047A 2001-10-25 2002-10-24 Procede et outil pour former des convexites Expired - Lifetime EP1439921B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
NO20015217 2001-10-25
NO20015217A NO316656B1 (no) 2001-10-25 2001-10-25 Verktoy for fremstilling av utbuktninger i en plate
PCT/NO2002/000386 WO2003035300A1 (fr) 2001-10-25 2002-10-24 Procede et outil pour former des convexites

Publications (2)

Publication Number Publication Date
EP1439921A1 EP1439921A1 (fr) 2004-07-28
EP1439921B1 true EP1439921B1 (fr) 2007-10-17

Family

ID=19912959

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02773047A Expired - Lifetime EP1439921B1 (fr) 2001-10-25 2002-10-24 Procede et outil pour former des convexites

Country Status (5)

Country Link
EP (1) EP1439921B1 (fr)
AT (1) ATE375829T1 (fr)
DE (1) DE60223065D1 (fr)
NO (1) NO316656B1 (fr)
WO (1) WO2003035300A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4541473A1 (fr) * 2023-10-18 2025-04-23 Profiroll Technologies GmbH Machine de laminage et procédé de laminage par estampage creux et découpage

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008005178B4 (de) * 2008-01-19 2010-09-02 Gottlieb Binder Gmbh & Co. Kg Verfahren zur Herstellung von Verschlusselementen für metallische Haftverschlüsse sowie nach dem Verfahren hergestelltes Verschlusselement
EP3450040A1 (fr) * 2017-08-30 2019-03-06 Mahle International GmbH Tube de refroidissement, son procédé de production et matrice en forme de roue destinée à être utilisée dans ce procédé

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI95212C (fi) * 1994-01-20 1996-01-10 Matti Pekka Home Lävistyskone, lävistysmenetelmä ja käyttö
DE19832897B4 (de) * 1998-07-22 2012-01-26 Schuler Pressen Gmbh & Co. Kg Rotationsumformmaschine
US6112568A (en) * 1999-02-03 2000-09-05 Finn-Power International, Inc. Roll forming using turret punch press

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4541473A1 (fr) * 2023-10-18 2025-04-23 Profiroll Technologies GmbH Machine de laminage et procédé de laminage par estampage creux et découpage

Also Published As

Publication number Publication date
WO2003035300A1 (fr) 2003-05-01
NO20015217D0 (no) 2001-10-25
DE60223065D1 (de) 2007-11-29
EP1439921A1 (fr) 2004-07-28
NO316656B1 (no) 2004-03-22
NO20015217L (no) 2003-04-28
ATE375829T1 (de) 2007-11-15

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