EP0582064B1 - Dispositif pour plier des profilés creux - Google Patents

Dispositif pour plier des profilés creux Download PDF

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Publication number
EP0582064B1
EP0582064B1 EP93109204A EP93109204A EP0582064B1 EP 0582064 B1 EP0582064 B1 EP 0582064B1 EP 93109204 A EP93109204 A EP 93109204A EP 93109204 A EP93109204 A EP 93109204A EP 0582064 B1 EP0582064 B1 EP 0582064B1
Authority
EP
European Patent Office
Prior art keywords
bending
mandrel
profile
bending mandrel
support
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
EP93109204A
Other languages
German (de)
English (en)
Other versions
EP0582064A1 (fr
Inventor
Franz Bayer
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.)
Bayer Isolierglas und Maschinentechnik GmbH
Original Assignee
Bayer Isolierglas und Maschinentechnik GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Bayer Isolierglas und Maschinentechnik GmbH filed Critical Bayer Isolierglas und Maschinentechnik GmbH
Publication of EP0582064A1 publication Critical patent/EP0582064A1/fr
Application granted granted Critical
Publication of EP0582064B1 publication Critical patent/EP0582064B1/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
    • B21D53/00—Making other particular articles
    • B21D53/74—Making other particular articles frames for openings, e.g. for windows, doors, handbags
    • 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
    • B21D7/00—Bending rods, profiles, or tubes
    • B21D7/02—Bending rods, profiles, or tubes over a stationary forming member; by use of a swinging forming member or abutment
    • B21D7/022—Bending rods, profiles, or tubes over a stationary forming member; by use of a swinging forming member or abutment over a stationary forming member only
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
    • E06B3/66—Units comprising two or more parallel glass or like panes permanently secured together
    • E06B3/663—Elements for spacing panes
    • E06B3/66309—Section members positioned at the edges of the glazing unit
    • E06B3/66314—Section members positioned at the edges of the glazing unit of tubular shape
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
    • E06B3/66—Units comprising two or more parallel glass or like panes permanently secured together
    • E06B3/673—Assembling the units
    • E06B3/67304—Preparing rigid spacer members before assembly
    • E06B3/67308—Making spacer frames, e.g. by bending or assembling straight sections
    • E06B3/67313—Making spacer frames, e.g. by bending or assembling straight sections by bending

Definitions

  • the invention relates to a bending device for hollow profiles, according to the preamble of claim 1.
  • Such a bending device is already known from DE 33 12 764 A1 and has proven itself.
  • the necessary tools have to be changed so far, in particular a bending mandrel of a length must be used that corresponds to the width of the profile cross section to be bent.
  • a bending device with the features of claim 1. Characterized in that the bending mandrel is slidably mounted on one of its bearing points, the bending mandrel can be adapted to the width of the respective profile web to be bent by changing its length protruding from the bearing opening.
  • the side stop having the bearing opening is adjustable in the longitudinal direction of the bending mandrel relative to the latter. This makes it possible to implement a particularly simple solution in which the device can also be adapted to profiles of different widths.
  • the bending mandrel is fixed immovably on its bearing point facing away from the displaceable bearing point. This makes the device stable against the Stress caused by the forces occurring during the bending process.
  • a particularly advantageous further development can consist in that the bending mandrel has circumferentially spaced ring grooves for receiving flanges projecting at right angles from the profile web resting on the bending mandrel, the width of these ring grooves being equal to or greater than the thickness of these flanges and the thickness of these flanges corresponds in particular to at least twice the wall thickness of the profile walls.
  • Hollow profiles that have side flanges protruding on opposite longitudinal edges of the profile above the surface of the profile web in between are used for spacing in insulating glass panes, a spacing frame being formed by applying these side flanges or side webs on mutually facing sides of the glass panes.
  • the annular grooves present in the bending mandrel according to the invention make it possible to accommodate the side flanges in the free spaces formed by the annular grooves, so that the recessed transverse web region - the profile web - between the flanges of the profile can lie flat on the surface of the bending mandrel and is therefore good for the bending process is supported.
  • annular grooves are arranged at a distance at which the hollow profiles differ from one another with regard to their width dimensions.
  • a bending mandrel provided with annular grooves can be adapted to the different width gradations of the profile webs.
  • a particularly stable storage is obtained if the end of the bending mandrel opposite the displaceable bearing point is fixed and the bending mandrel from that to the side stop protruding surface for the profile to be bent.
  • the ring groove wall facing away from the fixed bearing point is flush with the side stop of the bearing belonging to the fixed bearing point, the bending mandrel section adjacent to this ring groove wall being enclosed by the bearing belonging to the fixed bearing point. So that the side surfaces of the profile web lie smoothly on the side abutment surfaces of the bearings and the continuation of these groove walls, so that warpage of the side webs of the profile can be avoided during the bending process.
  • the displaceable part of the bending mandrel is arranged on the side facing away from the displaceable contact side and is connected to the device via tie rods.
  • the necessary holding pressure on the profile web inserted between the two bearings can be transferred well via the tie rods and the length of the effective area of the bending mandrel for inserting profiles of different widths can be adjusted.
  • the displaceable bearing point has a width in the radial direction which corresponds at least to the profile height.
  • the displaceable bearing point is rotatably mounted. It is expedient if the fixed bearing point opposite the displaceable bearing point is likewise rotatably mounted. By carrying along the side stop surfaces that act on the side surfaces of the profile of the bearing points the frictional stress on these contact surfaces is reduced during the bending.
  • the mandrel is arranged approximately centrally between the two tie rods, the longitudinal direction of extension of the tie rods running parallel to one another and to the longitudinal axis of the bent mandrel.
  • the free length of the bending mandrel can be adjusted while avoiding jamming and adapted to the width of the profile to be bent.
  • a particularly maintenance-friendly development of the invention can consist in the fact that the mandrel can be exchanged in its bearings.
  • a very particularly expedient modification and configuration of the invention can consist in the fact that the bending mandrel can be at least partially, preferably completely, retracted into the bending unit or the like mounting that holds it.
  • the space bridged by the bending mandrel, in which the profile to be bent is arranged during the bending process is free transversely to the orientation direction of the bending mandrel, so that a profile and in particular a profile frame that has already been partially bent transversely to the longitudinal extension of the mandrel at the bending point can be used.
  • the mandrel can then be moved back into the position of use, after which a desired bending can be carried out.
  • the profile of the spacer frame has flanges protruding from the profile web resting on the bending mandrel and the bending mandrel has corresponding grooves, the profile must be held a little distance from the mandrel during insertion of the bending mandrel into its position of use. However, since there is enough space to the side of the mandrel, this is easily possible. After positioning the mandrel, the profile can then be brought into its final bending position.
  • a device designated overall by 1 in FIG. 1 is used for bending hollow profiles 2, in particular for producing a spacing frame for insulating glass panes.
  • the hollow profile 2 can be empty or completely or partially filled with drying agent 3 during the bend.
  • the device 1 has a bending tool 4, which is used to detect the part of the profile 2 to be bent.
  • the part of the profile 2 to be bent is inserted or clamped between two mutually opposite side stops 5, 6.
  • the inner stationary side stop 5, which acts as a bending hold-down device is arranged approximately in the middle of a bending unit 7, while the outer, displaceable side stop 6 - which also acts as a bending hold-down device - is arranged in the opposite direction in the middle on a base plate 8.
  • This base plate 8 is rectangular, the area of its opposite narrow sides being penetrated by the end of a pull rod 9. Both pull rods 9 pass through - displaceably - eccentrically arranged bores 10 in the bending unit 7 and are fixed eccentrically at their ends on a pull plate 11, which in turn is centrally connected to a working piston 12.
  • the working piston 12 is slidably arranged in a hold-down cylinder 13, so that the tension plate 11 and the rigidly connected base plate 8 can be moved so that between the side stop 6 mounted on the base plate 8 and that along the direction of displacement on the opposite side on the bending unit 7 arranged side stop 5, a space is created in which the hollow profile 2 is inserted.
  • the hold-down cylinder 13 provides the necessary holding force for the side stops 5, 6 which act on the sides of the hollow profile 2.
  • the side stops 5,6 opposite each other in the direction of displacement - cf. Fig. 2 - have approximately the same circular cross-sections on the end face and have bearing openings 14 for the mandrel 15 which extend centrally along the direction of displacement.
  • the cross-section occurs round bending mandrel 15 at one end to form a bearing 23b slidably into the bearing opening 14 of the side stop 6 arranged in the base plate 8, the side stop 6 having the bearing opening 14 and the bending mandrel 15 being adjustable relative to one another in the longitudinal direction of extension of the bending mandrel 15.
  • the bending mandrel 15 is fixed immovably on the side stop 5.
  • the mandrel 15 is arranged approximately centrally between the two tie rods 9, the longitudinal direction of the tie rods 9 being parallel to one another and to the longitudinal axis of the mandrel 15.
  • the plane formed by the axes of the tie rods 9 and the mandrel 15 extends obliquely to the longitudinal direction of the profile 2, which is clamped between the side stops 5, 6 acting as a bending hold-down device and acts on the lower peripheral region of the mandrel 15.
  • the area of the profile 2 that is not to be bent is clamped between two vertically arranged clamping jaws 16, while the end that emerges on the opposite part of the device 1 and is to be bent is acted upon on its underside by a jaw-like bending tool 4.
  • This bending tool 4 can be pivoted about the longitudinal axis of the bending mandrel 15 - according to the arrow Pf 1.
  • the area of the profile 2 protruding from the side stops 5, 6 and acted upon by the bending tool 4 is also pivoted, only the zone 17 acted upon by the bending mandrel 15 being bent.
  • the hollow profiles 2 have flanges 18 which protrude at right angles to the web 2a at the opposite longitudinal edges and which - like outer webs - project beyond the surface of the profile web 2a located between the flanges 18. Since the cross-sectional thickness C of these flanges corresponds approximately to twice the wall thickness A of the profile walls, the bending mandrel 15 has circumferentially spaced annular grooves 19 for receiving these flanges 18. In this case, the profile web 2a of the profile 2 located between the flanges 18 on the inside of the bend to be applied lies smoothly on the surface of the bending mandrel 15. The width B of these ring grooves 19 corresponds approximately to the thickness C of these flanges 18. The ring grooves 19 are expediently arranged at a distance E which corresponds to the gradation differences of the various hollow profiles 2 - these are graduated or different in their width dimensions. The bending mandrel 15 can thus accommodate hollow sections 2 of different widths.
  • the annular groove wall 20 facing away from the fixed bearing 23a - which is located on the immovable side stop 5 - is flush with the side stop surface 5 of the fixed bearing.
  • the mandrel section 22 adjacent to this annular groove wall 20 is enclosed by the bearing belonging to the fixed bearing 23a.
  • the corresponding annular groove wall 20 is flush with the opposite sliding bearing 23b with the side surface belonging to this bearing 23b.
  • the embodiment according to FIG. 4 largely corresponds to the embodiment described above.
  • the bending mandrel 15 can not only perform a relative adjustment with respect to the bearing point 23b, but also that it penetrates a corresponding hole or perforation in the side stop 5, that is to say it can also be displaced relative to this and the bearing point 23a present there, specifically from the space between the two side stops 5 and 6 is retractable.
  • a profile 2 can thus be introduced transversely to the side stops 5 and 6 between them, for example from above, without the bending mandrel being in the way.
  • the profile 2 belongs to an already partially bent spacer frame, in which the bending mandrel 15 may be used to make a final bend to close the frame after this partially bent frame has been filled.
  • This embodiment according to FIG. 4 is therefore particularly suitable for arrangement within a device for filling partially curved spacer frames.
  • the side stops 5, 6 So that the profile 2 cannot warp, the side stops 5, 6 have a width in the radial direction which corresponds at least to the profile height.
  • the bearing points 23a, 23b are rotatably mounted on the two side stops 5,6. For maintenance, it is advantageous if the bending mandrel 15 can be replaced at the bearing points 23a, 23b.

Claims (16)

  1. Dispositif pour plier (1) des profilés creux (2), notamment pour fabriquer un cadre d'écartement pour des vitrages isolants, sachant que, pendant le pliage, le profilé creux (2) est vide ou partiellement ou entièrement rempli d'un produit sec (3), comprenant un mandrin de pliage (15), un premier outil (16) pour fixer la première partie du profilé (2) qui s'étend d'un côté du mandrin de pliage (15) et un deuxième outil (4) pour saisir la deuxième partie du profilé (2) qui s'étend de l'autre côté du mandrin de pliage (15), sachant que, lorsque la première partie du profilé est fixée dans le premier outil (16), le deuxième outil (4) est apte à plier la deuxième partie du profilé autour du mandrin de pliage (15) monté de part et d'autre de la zone de butée et agissant en tant que butée, et sachant que de part et d'autre de la zone de butée sont disposées des butées latérales (5, 6) se faisant face, caractérisé en ce que le mandrin de pliage (15) est logé de façon mobile au moins par une extrémité dans une ouverture (14) de l'une des butées latérales (6), et en ce que le mandrin de pliage (15) avec l'autre butée latérale (5) et la première butée latérale (6) peuvent être déplacés l'un par rapport à l'autre dans la direction longitudinale du mandrin de pliage (15).
  2. Dispositif de pliage selon la revendication 1, caractérisé en ce que la butée latérale (6) présentant l'ouverture (14) peut être déplacée par rapport au mandrin de pliage (15) dans la direction longitudinale de ce dernier.
  3. Dispositif de pliage selon la revendication 1 ou 2, caractérisé en ce que le mandrin de pliage (15) est fixé de façon immobile au niveau de son point d'appui (23a) qui est opposé au point d'appui mobile (23b).
  4. Dispositif de pliage selon l'une des revendications 1 à 3, caractérisé en ce que le mandrin de pliage (15) présente sur son pourtour des rainures annulaires (19) espacées les unes des autres, qui sont destinées à recevoir des brides (18) partant à angle droit de l'aile du profilé (2a) qui est appliquée contre le mandrin de pliage (15), sachant que la largeur (B) de ces rainures annulaires (19) est égale ou supérieure à l'épaisseur (C) de ces brides (18) et que l'épaisseur (C) de ces brides (18) correspond essentiellement au moins au double de l'épaisseur (A) des parois du profilé.
  5. Dispositif de pliage selon la revendication 4, caractérisé en ce que les rainures annulaires (19) sont disposées avec un espacement (E) correspondant à la différence des dimensions en largeur des profilés creux (2).
  6. Dispositif de pliage selon l'une des revendications 1 à 5, caractérisé en ce que l'extrémité du mandrin de pliage (15) qui est opposée au point d'appui mobile (23b) est montée fixement, et en ce que le mandrin de pliage (15) fait saillie de la surface faisant partie de la butée latérale (6) pour le profilé à plier (2).
  7. Dispositif de pliage selon l'une des revendications 4 à 6, caractérisé en ce qu'une paroi de rainure annulaire (20) qui est opposée au point d'appui fixe (23a) se termine en affleurement avec la butée latérale (5) du palier faisant partie du point d'appui fixe (23a), le segment du mandrin de pliage (22) adjacent à cette paroi de rainure annulaire (20) étant entouré par le palier faisant partie du point d'appui fixe (23a).
  8. Dispositif de pliage selon l'une des revendications 1 à 7, caractérisé en ce que la partie mobile du mandrin de pliage (15) est disposée sur le côté opposé au côté d'application mobile et est relié au dispositif (1) par des barres de traction (9).
  9. Dispositif de pliage selon l'une des revendications 1 à 8, caractérisé en ce que le point d'appui mobile (23b) présente une largeur dans la direction radiale qui correspond au moins à la hauteur du profilé.
  10. Dispositif de pliage selon l'une des revendications 1 à 9, caractérisé en ce que le point d'appui mobile (23b) est monté de façon à pouvoir tourner.
  11. Dispositif de pliage selon l'une des revendications 1 à 10, caractérisé en ce que le point d'appui fixe (23a) qui est opposé au point d'appui mobile (23b) est monté de manière à pouvoir tourner.
  12. Dispositif de pliage selon l'une des revendications 8 à 11, caractérisé en ce que le mandrin de pliage (15) est placé approximativement au milieu entre les deux barres de traction (9), les directions des étendues longitudinales des barres de traction (9) s'étendant parallèlement entre elles et par rapport à l'axe longitudinal du mandrin de pliage (15).
  13. Dispositif de pliage selon l'une des revendications 8 à 12, caractérisé en ce que le plan formé par les axes des barres de traction (9) et du mandrin de pliage (15) s'étend en biais par rapport à la direction de l'étendue longitudinale du profilé (2).
  14. Dispositif de pliage selon l'une des revendications 1 à 13, caractérisé en ce que le mandrin de pliage (15) est amovible au niveau de ses points d'appui (23a, 23b).
  15. Dispositif de pliage selon l'une des revendications 1 à 14, caractérisé en ce que le mandrin de pliage (15) peut être au moins partiellement, de préférence entièrement, rentré dans l'unité de pliage (7) ou dans un support analogue le maintenant.
  16. Dispositif de pliage selon la revendication 15, caractérisé en ce que le mandrin de pliage (15) peut être rentré au point qu'il libère, pour un profilé à courber, l'écart entre les butées latérales (5, 6), écart qu'il comble en position d'utilisation.
EP93109204A 1992-08-05 1993-06-08 Dispositif pour plier des profilés creux Expired - Lifetime EP0582064B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4225833A DE4225833C2 (de) 1992-08-05 1992-08-05 Biegevorrichtung für Hohlprofile
DE4225833 1992-08-05

Publications (2)

Publication Number Publication Date
EP0582064A1 EP0582064A1 (fr) 1994-02-09
EP0582064B1 true EP0582064B1 (fr) 1996-03-06

Family

ID=6464862

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93109204A Expired - Lifetime EP0582064B1 (fr) 1992-08-05 1993-06-08 Dispositif pour plier des profilés creux

Country Status (3)

Country Link
EP (1) EP0582064B1 (fr)
AT (1) ATE134912T1 (fr)
DE (2) DE4225833C2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6023956A (en) * 1997-08-02 2000-02-15 Franz Xaver Bayer Isolierglasfabrik Kg Device for bending a hollow section with a hold down clamp

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT406236B (de) * 1995-10-31 2000-03-27 Lisec Peter Vorrichtung zum biegen oder krümmen von hohlprofilleisten
DE19839735B4 (de) * 1998-09-01 2005-03-03 Franz Xaver Bayer Isolierglasfabrik Kg Vorrichtung zum Biegen eines abstandhaltenden Innenrahmens für eine Isolierglasscheibe
DE10138345B4 (de) * 2001-08-03 2008-12-04 Lenhardt Maschinenbau Gmbh Vorrichtung zum Biegen von Hohlprofilstäben
AT512718B1 (de) * 2012-03-19 2013-12-15 Fux Maschb U Kunststofftechnik Gmbh Verfahren und Vorrichtung zum Biegen einer Ecke in ein Profil aus thermoplastischem Grundmaterial

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3312764A1 (de) * 1983-04-09 1984-10-18 Fr. Xaver Bayer Isolierglasfabrik Kg, 7807 Elzach Verfahren und vorrichtung zum biegen von abstandhalter-profilen fuer isolierglasscheiben
NO174376C (no) * 1986-04-07 1994-04-27 Rjukan Metall As Apparat for böyning av metallprofiler
DE3740921A1 (de) * 1987-12-03 1989-06-15 Bayer Isolierglasfab Kg Vorrichtung zur herstellung einer biegung an einem hohlen rechteck-profil
DE3936621A1 (de) * 1989-11-03 1991-05-08 Philipps Claus Hermann Biegevorrichtung fuer bleche
DK169909B1 (da) * 1990-10-26 1995-04-03 Bayer Isolierglasfab Kg Bukkemaskine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6023956A (en) * 1997-08-02 2000-02-15 Franz Xaver Bayer Isolierglasfabrik Kg Device for bending a hollow section with a hold down clamp

Also Published As

Publication number Publication date
EP0582064A1 (fr) 1994-02-09
ATE134912T1 (de) 1996-03-15
DE4225833C2 (de) 1994-07-28
DE4225833A1 (de) 1994-02-10
DE59301777D1 (de) 1996-04-11

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