EP1439921B1 - Verfahren und werkzeug zur bereitstellung von konvexitäten - Google Patents

Verfahren und werkzeug zur bereitstellung von konvexitäten 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
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English (en)
French (fr)
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EP1439921A1 (de
Inventor
Gunnar Sundhagen
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Individual
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Individual
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Filing date
Publication date
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Publication of EP1439921A1 publication Critical patent/EP1439921A1/de
Application granted granted Critical
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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)
  • Polishing Bodies And Polishing Tools (AREA)
  • Dry Shavers And Clippers (AREA)
  • Cell Separators (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Machines For Manufacturing Corrugated Board In Mechanical Paper-Making Processes (AREA)
  • Gripping On Spindles (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)

Claims (6)

  1. Werkzeug zum Herstellen von Konvexitäten in einer Platte, umfassend eine erste (12) und eine zweite (13) Werkzeughälfte, wobei zumindest eine Werkzeughälfte (12, 13) eine Vielzahl von erhöhten Teilen (17) aufweist, die in einer Reihe entlang einer geraden Linie angeordnet sind, und zumindest eine Werkzeughälfte eine Vielzahl von Ausnehmungen (16) aufweist, wobei die erhöhten Teile (17) an der ersten Werkzeughälfte (12) in die Ausnehmungen (16) an der zweiten Werkzeughälfte (13) passen,
    dadurch gekennzeichnet, dass
    jede Werkzeughälfte (12, 13) eine Walze ist, die eine Fläche (18, 19) umfasst, die in dem Walzspalt zwischen sich die Plattendicke um die Konvexitäten (3, 4) herum definiert und die Platte (1) in einer Ebene hält, in der die erhöhten Teile (17) der ersten Walze (12) eine Länge aufweisen, die, wenn von einem Punkt in der Ebene über die Oberseite des erhöhten Teils hinweg zu einem Punkt in der Ebene auf der gegenüberliegenden Seite des erhöhten Teils (17) gemessen wird, gleich der entsprechenden Länge über die erhöhten Teile (17) an der zweiten Walze (13) ist, wobei die erhöhten Teile (17) an und die Ausnehmungen (16) in einer jeweiligen Walze in dem Walzspalt mit wenig oder keinem Zwischenraum aneinander vorbeitreten, was bewirkt, dass die Platte (1) zwischen dem jeweiligen erhöhten Teil (17) und der jeweiligen Ausnehmung (16) geschnitten wird, um eine Öffnung (7) zwischen einer Konvexität (3) und der benachbarten Konvexität (4) zu bilden.
  2. Werkzeug nach Anspruch 1,
    dadurch gekennzeichnet, dass
    jede Walze erhöhte Teile (17) und Ausnehmungen aufweist.
  3. Werkzeug nach einem der vorhergehenden Ansprüche,
    dadurch gekennzeichnet, dass
    die Walzen, zumindest in einem Bereich in einer Linie mit den jeweiligen Reihen von Konvexitäten, Flächen (18, 19) aufweisen, die zwischen sich einen kleineren Abstand in dem Walzspalt als ein Zwischenraum (23) zwischen den jeweiligen passenden Ausnehmungen (16) und erhöhten Teilen (17) bilden, sodass die Platte derart gewalzt wird, dass sie in einem Bereich (6) zwischen den Konvexitäten und in der Reihe von Konvexitäten dünner ist als das Plattenmaterial in den Konvexitäten.
  4. Werkzeug nach Anspruch 3,
    dadurch gekennzeichnet, dass
    die Walzen auf eine solche Weise aufgebaut sind, dass der Bereich (6) auf eine solche Weise gewalzt wird, dass sichergestellt ist, dass die durch Walzen eingeleitete Ausdehnung der Bereiche (6) in der Walzrichtung der Ausdehnung der Platte in den Bereichen der Konvexitäten (3, 4) in der Walzrichtung entspricht, wobei die Ausdehnung durch die Krümmung dieser Konvexitäten hervorgerufen wird.
  5. Werkzeug nach einem der vorhergehenden Ansprüche,
    dadurch gekennzeichnet, dass
    es zumindest vier Walzen (12, 13, 21, 22) in zwei Walzgerüsten umfasst, wodurch eine partielle Bildung der Konvexitäten (3, 4) und ein Schneiden der Platte, um in dem ersten Walzgerüst die Öffnungen (7) zu bilden, und ein Stanzen der Konvexitäten in einem zweiten Walzgerüst zugelassen wird.
  6. Werkzeug nach Anspruch 5,
    dadurch gekennzeichnet, dass
    in dem zweiten Walzgerüst die erhöhten Teile (17) die Ausnehmungen (16) an gegenüberliegenden Walzen (21, 22) in der Längsrichtung beabstandet sind, um zu vermeiden, dass sich die Walzen während des Walzens berühren.
EP02773047A 2001-10-25 2002-10-24 Verfahren und werkzeug zur bereitstellung von konvexitäten Expired - Lifetime EP1439921B1 (de)

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 (en) 2001-10-25 2002-10-24 Method and tool for providing convexities

Publications (2)

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

Family

ID=19912959

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02773047A Expired - Lifetime EP1439921B1 (de) 2001-10-25 2002-10-24 Verfahren und werkzeug zur bereitstellung von konvexitäten

Country Status (5)

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

Families Citing this family (1)

* 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

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

Also Published As

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

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