EP0582064B1 - Apparatus for bending hollow profiles - Google Patents

Apparatus for bending hollow profiles 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
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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
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EP93109204A
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German (de)
French (fr)
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EP0582064A1 (en
Inventor
Franz Bayer
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Bayer Isolierglas und Maschinentechnik GmbH
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Bayer Isolierglas und Maschinentechnik GmbH
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Publication of EP0582064A1 publication Critical patent/EP0582064A1/en
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    • 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.

Abstract

An apparatus (1) for bending hollow profiles (2) is used, in particular, for the production of spacer frames for panes of insulating glass and has a bending tool (4) or the like which grips that part of the profile (2) which is to be bent and bends it around a bending mandrel (15). At at least one end, the bending mandrel (15) enters a bearing opening (14), the part with the bearing opening (14) and the bending mandrel (15) being adjustable relative to one another in the longitudinal direction of the bending mandrel (15). On it circumference, the bending mandrel (15) has mutually spaced annular grooves (19) for flanges (18) projecting at right angles from the profile web (2a) resting against the bending mandrel (15). <IMAGE>

Description

Die Erfindung betrifft eine Biegevorrichtung für Hohlprofile, gemäß Oberbegriff des Patentanspruches 1.The invention relates to a bending device for hollow profiles, according to the preamble of claim 1.

Eine derartige Biegevorrichtung ist aus der DE 33 12 764 A1 bereits bekannt und hat sich bewährt. Je nach Querschnitt des Profiles müssen bisher die erforderlichen Werkzeuge gewechselt werden, insbesondere muß jeweils ein Biegedorn von einer solchen Länge eingesetzt werden, die der Breite des zu biegenden Profilquerschnittes entspricht.Such a bending device is already known from DE 33 12 764 A1 and has proven itself. Depending on the cross section of the profile, 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.

Aus der europäischen Patentanmeldung 04 83 044 ist eine Vorrichtung bekannt, bei der statt eines durchgehenden Biegedorns zwei relativ zueinander verstellbare, einseitig gelagerte Vorsprünge vorgesehen sind, die in Flucht zueinander angeordnet sind und je nach Breite des zu biegenden Profiles einen entsprechenden Abstand zueinander haben. Dies bedeutet, daß das am meisten bei der Biegung beaufschlagte Teil des Biegewerkzeuges oder der Biegevorrichtung, nämlich das Widerlager, aus zwei nur einseitig gehaltenen Teilen besteht, also entweder sehr stabil sein muß, oder nur für Profile mit geringem Widerstandswert geeignet ist. Eine Erhöhung der Stabilität dieser Widerlager der vorbekannten Vorrichtung durch Vergrößerung ihrer Abmessung ist deshalb kaum möglich, weil der Innenradius der Biegung so klein wie möglich sein soll.From the European patent application 04 83 044 a device is known in which instead of a continuous bending mandrel two mutually adjustable, one-sided projections are provided, which are arranged in alignment with each other and have a corresponding distance from each other depending on the width of the profile to be bent. This means that most of the part of the bending tool or the bending device, namely the abutment, acted upon during bending, consists of two parts held only on one side, that is, it must either be very stable, or is only suitable for profiles with a low resistance value. An increase in the stability of these abutments of the known device by increasing their dimensions is hardly possible because the inner radius of the bend should be as small as possible.

Es besteht deshalb die Aufgabe, eine Biegevorrichtung der gattungsgemäßen Art zu schaffen, mit welcher ohne Werkzeugwechsel unterschiedlich breite Profile gebogen werden können, dennoch aber ein durchgehender Biegedorn verwendbar ist.There is therefore the task of creating a bending device of the generic type, with which profiles of different widths can be bent without changing tools, but a continuous bending mandrel can nevertheless be used.

Die Lösung dieser scheinbar widersprüchlichen Aufgabe erfolgt mit einer Biegevorrichtung mit den Merkmalen des Patentanspruches 1.
Dadurch, daß der Biegedorn an einer seiner Lagerstellen verschiebbar gelagert ist, kann der Biegedorn durch eine Änderung seiner aus der Lageröffnung überstehenden Länge an die Breite des zu biegenden jeweiligen Profilsteges angepaßt werden.This apparently contradicting task is solved with 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.

Zweckmäßig ist es, wenn der die Lageröffnung aufweisende Seitenanschlag in Längserstreckungsrichtung des Biegedorns relativ zu diesem verstellbar ist. Dadurch läßt sich eine besonders einfache Lösung realisieren, bei der sich ebenfalls eine Anpassung der Vorrichtung an unterschiedlich breite Profile erzielen läßt.It is expedient if 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.

Vorteilhaft ist es, wenn der Biegedorn an seiner der verschiebbaren Lagerstelle abgewandten Lagerstelle unverschiebbar fixiert ist. Dadurch ist die Vorrichtung stabil gegenüber der Beanspruchung durch die während des Biegevorganges auftretenden Kräfte.It is advantageous if 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.

Eine besonders vorteilhafte Weiterbildung kann darin bestehen, daß der Biegedorn an seinem Umfang zueinander beabstandete Ringnuten zum Aufnehmen von rechtwinklig von dem am Biegedorn anliegenden Profilsteg abstehenden Flanschen aufweist, wobei die Breite dieser Ringnuten gleich oder größer als die Dicke dieser Flansche ist und die Dicke dieser Flansche insbesondere wenigstens der doppelten Wandstärke der Profilwände entspricht.
Hohlprofile, die an gegenüberliegenden Längsrändern des Profiles über die Oberfläche des - dazwischen liegenden - Profilsteges überstehende Seitenflansche aufweisen, werden zur Abstandhalterung in Isolierglasscheiben verwendet, wobei sich durch Anlegen dieser Seitenflansche bzw. Seitenstege an einander zugewandten Seiten der Glasscheiben ein abstandhaltender Rahmen bildet. Die bei dem erfindungsgemäßen Biegedorn vorhandenen Ringnuten ermöglichen es, die Seitenflansche in die durch die Ringnuten gebildeten Freiräume aufzunehmen, so daß der zwischen den Flanschen befindliche zurückgesetzte Querstegbereich - der Profilsteg - des Profils auf der Oberfläche des Biegedorns eben aufliegen kann und somit für den Biegevorgang gut abgestützt ist.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.

Dabei ist es besonders zweckmäßig, wenn die Ringnuten in einem solchen Abstand angeordnet sind, in welchem die Hohlprofile bezüglich ihrer Breiten-Abmessungen voneinander verschieden sind. Dadurch kann ein mit Ringnuten versehener Biegedorn an die unterschiedlichen Breiten-Abstufungen der Profilstege angepaßt werden.It is particularly expedient if the annular grooves are arranged at a distance at which the hollow profiles differ from one another with regard to their width dimensions. As a result, a bending mandrel provided with annular grooves can be adapted to the different width gradations of the profile webs.

Eine besonders stabile Lagerung ergibt sich, wenn das der verschiebbaren Lagerstelle entgegengesetzte Ende des Biegedorns fest gelagert ist und der Biegedorn aus der zu dem Seitenanschlag gehörenden Fläche für das zu biegende Profil hervorsteht.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.

Zweckmäßig ist es, wenn der festen Lagerstelle abgewandte Ringnutenwandung bündig mit dem Seitenanschlag des zu der festen Lagerstelle gehörenden Lagers abschließt, wobei der zu dieser Ringnutenwandung benachbarte Biegedornabschnitt von dem zu der festen Lagerstelle gehörenden Lager umschlossen ist. Damit liegen die Seitenflächen des Profilsteges glatt an den Seitenanschlagflächen der Lager und den diese fortsetzenden Nutenwandungen an, so daß während des Biegevorganges Verwerfungen der Seitenstege des Profiles vermieden werden.It is expedient if 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.

Zweckmäßig ist es, wenn der verschiebbare Teil des Biegedorns auf der der verschiebbaren Anlageseite abgewandten Seite angeordnet und über Zugstangen mit der Vorrichtung verbunden ist. Über die Zugstangen läßt sich der notwendige Haltedruck auf den zwischen den beiden Lagern eingelegten Profilsteg gut übertragen und die Länge des Wirkbereiches des Biegedorns zum Einlegen unterschiedlich breiter Profile verstellen.It is expedient if 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.

Vorteilhaft ist es, wenn die verschiebbare Lagerstelle eine Breite in radialer Richtung aufweist, die wenigstens der Profilhöhe entspricht. Durch Anlage der Seitenfläche des Profilsteges an die jeweilige - als Biege-Niederhalter wirkende - Seitenanschlagfläche der Lagerstelle können somit die Profilstege während des Biegens über ihre gesamte Querschnittsausdehnung oder -höhe abgestützt und glatt gehalten werden.It is advantageous if the displaceable bearing point has a width in the radial direction which corresponds at least to the profile height. By contacting the side surface of the profile web against the respective side stop surface of the bearing point, which acts as a bending hold-down device, the profile webs can thus be supported and kept smooth over their entire cross-sectional extent or height during bending.

Vorteilhaft ist es, wenn die verschiebbare Lagerstelle drehbar gelagert ist. Dabei ist es zweckmäßig, wenn die der verschiebbaren Lagerstelle gegenüberliegende feste Lagerstelle - ebenfalls - drehbar gelagert ist. Durch Mitführung der die Seitenflächen des Profiles beaufschlagenden Seitenanschlagflächen der Lagerstellen wird die Reibungsbeanspruchung dieser Berührungsflächen während des Biegens vermindert.It is advantageous if 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.

Zweckmäßig ist es, wenn der Biegedorn etwa mittig zwischen beiden Zugstangen angeordnet ist, wobei die Längserstreckungsrichtung der Zugstangen parallel zueinander und zur Längsachse des Biegedorns verläuft. Durch diese symmetrische Führung der Zugstangen bezüglich des Biegedorns kann die freie Länge des Biegedorns bei Vermeiden von Verkanten verstellt und an die Breite des zu biegenden Profils angepaßt werden.It is expedient if 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. Through this symmetrical guidance of the tie rods with respect to the bending 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.

Zweckmäßig ist es, wenn die durch die Achsen der Zugstangen und der Achse des Biegedorns gebildete Ebene schräg zur Längserstreckungsrichtung des Profiles verläuft. Auf diese Weise ergibt sich ein freier Schwenkbereich für den zu biegenden Profilschenkel.It is useful if the plane formed by the axes of the tie rods and the axis of the bending mandrel runs obliquely to the longitudinal direction of the profile. In this way, there is a free swivel range for the profile leg to be bent.

Eine besonders wartungsfreundliche Weiterbildung der Erfindung kann darin bestehen, daß der Biegedorn in seinen Lagerstellen auswechselbar ist.A particularly maintenance-friendly development of the invention can consist in the fact that the mandrel can be exchanged in its bearings.

Eine ganz besonders zweckmäßige Abwandlung und Ausgestaltung der Erfindung kann darin bestehen, daß der Biegedorn gegenüber der ihn haltenden Biegeinheit oder dergleichen Lagerung in diese hinein wenigstens teilweise, vorzugsweise vollständig zurückziehbar ist. Auf diese Weise wird der von dem Biegedorn überbrückte Zwischenraum, in welchem das zu biegende Profil wahrend des Biegevorganges angeordnet ist, quer zur Orientierungsrichtung des Biegedornes frei, so daß ein Profil und insbesondere ein schon teilweise gebogener Profilrahmen quer zu der Längserstreckung des Dornes an der Biegestelle eingesetzt werden kann. Anschließend kann dann der Biegedorn wieder in Gebrauchsstellung verschoben werden, wonach eine gwünschte Biegung durchgeführt werden kann.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. In this way, 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. Then the mandrel can then be moved back into the position of use, after which a desired bending can be carried out.

Hat dabei das Profil des Abstandhalterrahmens von dem am Abbiegedorn anliegenden Profilsteg abstehende Flansche und der Biegedorn entsprechende Nuten, ist während des Einschiebens des Biegedornes in seine Gebrauchsstellung das Profil mit etwas Abstand von dem Dorn zu halten. Da jedoch seitlich des Biegedornes genügend Platz vorhanden ist, ist dies problemlos möglich. Nach dem Positionieren des Biegedornes kann dann das Profil in seine endgültige Biegelage gebracht werden.If 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.

Nachstehend ist ein Ausführungsbeispiel der Erfindung anhand der Zeichnung näher beschrieben.An embodiment of the invention is described below with reference to the drawing.

Es zeigt in zum Teil schematisierter Darstellung:

Fig.1
eine teilweise im Schnitt dargestellte Draufsicht auf die erfindungsgemäße Vorrichtung, wobei ein Hohlprofil zwischen zwei Lagern eingespannt ist,
Fig.2
eine Seitenansicht der Vorrichtung mit dem eingespannten Hohlprofil,
Fig.3
einen im vergrößerten Maßstab gehaltenen gegenüber Fig.1 um 90° gedrehten Teil-Schnitt durch die Vorrichtung sowie
Fig. 4
eine der Fig. 3 entsprechende Darstellung einer abgewandelten Vorrichtung, bei welcher der Dorn gegenüber beiden Lagerstellen verschiebbar und dabei gegenüber einer ihn haltenden Biegeinheit in diese zurückziehbar ist.
It shows in a partially schematic representation:
Fig. 1
2 shows a top view, partly in section, of the device according to the invention, a hollow profile being clamped between two bearings,
Fig. 2
a side view of the device with the clamped hollow profile,
Fig. 3
a partial section through the device, rotated by 90 ° compared to FIG
Fig. 4
a representation corresponding to FIG. 3 of a modified device, in which the mandrel is displaceable relative to both bearing points and can be retracted into a bending unit holding it.

Eine in Fig.1 im ganzen mit 1 bezeichnete Vorrichtung dient zum Biegen von Hohlprofilen 2, insbesondere zur Herstellung eines abstandhaltenden Rahmens für Isolierglasscheiben. Dabei kann das Hohlprofil 2 während der Biegung leer oder ganz oder teilweise mit Trockenmittel 3 gefüllt sein. Die Vorrichtung 1 weist ein Biegewerkzeug 4 auf, das der Erfassung des umzubiegenden Teils des Profiles 2 dient. Dabei wird der umzubiegende Teil des Profiles 2 zwischen zwei einander gegenüberliegenden Seitenanschlägen 5,6 eingelegt bzw. eingespannt. Der innere ortsfeste seitenanschlag 5, der als Biege-Niederhalter wirkt, ist etwa mittig an einer Biege-Einheit 7 angeordnet, während der außen liegende verschiebbare Seitenanschlag 6 - dieser wirkt ebenfalls als Biege-Niederhalter - entgegengesetzt dazu mittig an einer Grundplatte 8 angeordnet ist. Diese Grundplatte 8 ist rechteckig, wobei der Bereich ihrer entgegengesetzten Schmalseiten jeweils vom Ende einer Zugstange 9 fest durchsetzt wird. Beide Zugstangen 9 durchgreifen - verschiebbar - exzentrisch angeordnete Bohrungen 10 in der Biege-Einheit 7 und sind an ihren Enden exzentrisch auf einer Zugplatte 11 fixiert, die ihrerseits zentrisch mit einem Arbeitskolben 12 verbunden ist.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. Here 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.

Der Arbeitskolben 12 ist verschiebbar in einem Niederhalter-Zylinder 13 angeordnet, so daß die Zugplatte 11 und die starr mit ihr verbundene Grundplatte 8 so verschoben werden können, daß zwischen dem auf der Grundplatte 8 montierten Seitenanschlag 6 und dem entlang der Verschieberichtung auf der gegenüberliegenden Seite auf der Biege-Einheit 7 angeordneten Seitenanschlag 5 ein Zwischenraum entsteht, in den das Hohlprofil 2 eingelegt wird. Der Niederhalter-Zylinder 13 sorgt für die notwendige Haltekraft der die Seiten des Hohlprofiles 2 beaufschlagenden Seitenanschläge 5,6.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.

Die in Verschieberichtung einander gegenüberliegenden Seitenanschläge 5,6 - vgl. Fig.2 - haben stirnseitig etwa gleiche kreisförmige Querschnitte und weisen mittig entlang der Verschieberichtung sich erstreckende Lageröffnungen 14 für den Biegedorn 15 auf. Im Ausführungsbeispiel tritt der im Querschnitt runde Biegedorn 15 an seinem einem Ende zur Bildung einer Lagerstelle 23b verschiebbar in die Lageröffnung 14 des in der Grundplatte 8 angeordneten Seitenanschlages 6 ein, wobei der die Lageröffnung 14 aufweisende Seitenanschlag 6 und der Biegedorn 15 relativ zueinander in der Längserstreckungsrichtung des Biegedorns 15 verstellbar sind. An der dieser verschiebbaren Lagerstelle 23b abgewandten Lagerstelle 23a ist der Biegedorn 15 an dem Seitenanschlag 5 unverschiebbar fixiert.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. In the exemplary embodiment, 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. At the bearing point 23a facing away from this displaceable bearing point 23, the bending mandrel 15 is fixed immovably on the side stop 5.

In Fig.2 ist erkennbar, daß der Biegedorn 15 etwa mittig zwischen den beiden Zugstangen 9 angeordnet ist, wobei die Längserstreckungsrichtung der Zugstangen 9 parallel zueinander und zur Längsachse des Biegedorns 15 verläuft. Die durch die Achsen der Zugstangen 9 und des Biegedorns 15 gebildete Ebene verläuft dabei schräg zur Längserstreckungsrichtung des Profiles 2, der zwischen den als Biege-Niederhalter wirkenden Seitenanschlägen 5,6 eingespannt ist und den unteren Umfangsbereich des Biegedorns 15 beaufschlagt.In Figure 2 it can be seen that 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.

Der nicht zu biegende Bereich des Profiles 2 wird zwischen zwei vertikal angeordneten Spannbacken 16 eingespannt, während das auf dem entgegengesetzten Teil der Vorrichtung 1 austretende und zu biegende Ende an seiner Unterseite von einem backenartigen Biegewerkzeug 4 beaufschlagt wird. Dieses Biegewerkzeug 4 ist um die Längsachse des Biegedorns 15 - gemäß dem Pfeil Pf 1 - schwenkbar. Dabei wird der aus den Seitenanschlägen 5,6 herausragende und von dem Biegewerkzeug 4 beaufschlagte Bereich des Profiles 2 mitgeschwenkt, wobei lediglich die von dem Biegedorn 15 beaufschlagte Zone 17 gebogen wird.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.

Wie Fig.3 zeigt, haben die Hohlprofile 2 an den gegenüberliegenden Längsrändern rechtwinklig zu dem Steg 2a abstehende Flansche 18, die - wie Außenstege - über die Oberfläche des zwischen den Flanschen 18 befindlichen Profilsteges 2a überstehen. Da die Querschnittsdicke C dieser Flansche etwa der doppelten Wandstärke A der Profilwände entspricht, weist der Biegedorn 15 an seinem Umfang zueinander beabstandete Ringnuten 19 zum Aufnehmen dieser Flansche 18 auf. Dabei liegt der zwischen den Flanschen 18 befindliche an der Innenseite der anzubringenden Biegung befindliche Profilsteg 2a des Profils 2 glatt auf der Oberfläche des Biegedorns 15 auf. Die Breite B dieser Ringnuten 19 entspricht etwa der Dicke C dieser Flansche 18. Zweckmäßigerweise sind die Ringnuten 19 in einem Abstand E angeordnet, der den Abstufungsdifferenzen der verschiedenen Hohlprofile 2 - diese sind in ihren Breiten-Abmessungen abgestuft bzw. verschieden - entspricht. Der Biegedorn 15 kann somit unterschiedlich breite Hohlprofile 2 aufnehmen.As shown in FIG. 3, 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.

Damit die Seitenflächen des Hohlprofiles 2 und der Flansche 18 an den beabstandeten Seitenanschlägen 5,6 glatt anliegen, schließt die der festen Lagerstelle 23a - die sich auf dem unverschiebbaren Seitenanschlag 5 befindet - abgewandte Ringnutenwandung 20 bündig mit der Seitenanschlagfläche 5 der festen Lagerstelle ab. Der zu dieser Ringnutenwandung 20 benachbarte Dornabschnitt 22 wird von dem zu der festen Lagerstelle 23a gehörenden Lager umschlossen. Ebenso schließt die entsprechende Ringnutwandung 20 an der entgegengesetzten verschiebbaren Lagerstelle 23b mit der zu dieser Lagerstelle 23b gehörenden Seitenfläche bündig ab. Dadurch werden - während des Biegevorganges - unkontrollierte Verwerfungen der Seitenflächen der Querstege des zu biegenden Hohlprofiles 2 vermieden, indem diese Seitenflächen an den Seitenanschlägen 5,6 und den Nutenwandungen 20 glatt anliegen.So that the side faces of the hollow profile 2 and the flanges 18 lie flush against the spaced side stops 5, 6, 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. Likewise, the corresponding annular groove wall 20 is flush with the opposite sliding bearing 23b with the side surface belonging to this bearing 23b. As a result, uncontrolled warping of the side surfaces of the transverse webs of the hollow profile 2 to be bent is avoided during the bending process, in that these side surfaces lie flush against the side stops 5, 6 and the groove walls 20.

Durch den durchgehenden, nur durch schmale Umfangsnuten 20 in seiner Oberfläche etwas unterbrochenen Biegedorn 15 wird erreicht, daß eine weitgehend gleichmäßige Abstützung und somit glatte Rundung an dem an der Innenseite der Biegung befindlichen Steg 2a entsteht.Through the continuous, only slightly interrupted by narrow circumferential grooves 20 in its surface bending mandrel 15 ensures that a largely uniform support and thus smooth rounding is formed on the web 2a located on the inside of the bend.

Das Ausführungsbeispiel gemäß Fig. 4 entspricht weitestgehend dem vorbeschriebenen Ausführungsbeispiel. Es ist jedoch deutlich erkennbar, daß der Biegedorn 15 nicht nur eine Relativverstellung gegenüber der Lagerstelle 23b durchführen kann, sondern daß er auch eine entsprechende Bohrung oder Lochung in dem Seitenanschlag 5 durchsetzt, also auch gegenüber dieser und der dort vorhandenen Lagerstelle 23a verschiebbar und zwar aus dem Zwischenraum zwischen beiden Seitenanschlägen 5 und 6 zurückziehbar ist. Somit kann ein Profil 2 quer zu den Seitenanschlägen 5 und 6 zwischen diesen beipielsweise von oben her eingebracht werden, ohne daß dabei der Biegdorn im Wege ist. Dies ist vor allem vorteilhaft, wenn das Profil 2 zu einem schon teilweise gebogenen Abstandhalterrahmen gehört, bei welchem mit Hilfe des Biegedornes 15 eventuell noch eine letzte Biegung zum Schließen des Rahmens angebracht werden soll, nachdem dieser teilweise gebogene Rahmen gefüllt wurde. Diese Ausführungsform gemäß Fig. 4 eignet sich also vor allem zur Anordnung innerhalb einer Vorrichtung zum Füllen von teilweise gebogenen Abstandhalterrahmen.
Damit sich das Profil 2 nicht verziehen kann, weisen die Seitenanschläge 5 ,6 eine solche Breite in radialer Richtung auf, die wenigstens der Profilhöhe entspricht. Um die Gefahr unkontrollierter Verwerfungen oder eines Materialrisses im Profil 2 während des Biegevorganges gering zu halten, sind die Lagerstellen 23a,23b an den beiden Seitenanschlägen 5,6 drehbar gelagert. Zur Wartung ist es vorteilhaft, wenn der Biegedorn 15 an den Lagerstellen 23a,23b auswechselbar ist.The embodiment according to FIG. 4 largely corresponds to the embodiment described above. However, it is clearly recognizable that 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. This is particularly advantageous if 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.
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. In order to keep the risk of uncontrolled warping or a material tear in the profile 2 low during the bending process, 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. An apparatus (1) for bending hollow profiles (2), particularly for making a spacer frame for insulating glass panes, wherein the hollow profile (2) is empty or wholly or partly filled with drying agent (3) during the bending, said apparatus including a bending mandrel (15), a first tool (16) for fixing the first portion of the profile (2) extending on the one side of the bending mandrel (15) and a second tool (4) for grasping the second portion of the profile (2) extending on the other side of the bending mandrel (15), wherein when the first profile portion is fixed in the first tool (16) the second tool (4) is suited for bending the second profile portion about the bending mandrel (15) which acts as an abutment and is mounted on both sides of the abutment area, and wherein mutually opposed side stops (5, 6) are arranged on either side of the abutment area,
    characterized in that
    the bending mandrel (15) is displaceably mounted at at least one end in a bearing opening (14) of the one side stop (6), and that the bending mandrel (15) together with the other side stop (5) and the first side stop (6) are adjustable relative to one another in the longitudinal direction of the bending mandrel (15).
  2. A bending apparatus as claimed in claim 1, characterized in that the side stops (6) presenting the bearing opening (14) are adjustable relative to the bending mandrel (15) in the longitudinal direction of the latter.
  3. A bending apparatus as claimed in claim 1 or claim 2, characterized in that the bending mandrel (15) is non-displaceably fixed at its point of support (23a) facing away from the movable point of support (23b).
  4. A bending apparatus as claimed in any one of claims 1 to 3, characterized in that the bending mandrel (15) has spaced, peripheral, annular grooves (19) for receiving flanges (18) extending outwardly at right angles from the profile web (2a) bearing against the bending mandrel (15), the width (B) of said annular grooves (19) being equal to or greater than the thickness (C) of said flanges (18) and in particular the thickness (C) of said flanges (18) corresponding to at least double the wall thickness (A) of the profile walls.
  5. A bending apparatus as claimed in claim 4, characterized in that the annular grooves (19) are arranged at a distance (E) complementary to that with which the hollow profiles (2) vary from one another with respect to their lateral dimensions.
  6. A bending apparatus as claimed in any one of claims 1 to 5, characterized in that the bending mandrel (15) end opposed to the displaceable point of support (23b) is stationary and the bending mandrel (15) projects from the surface belonging to the side stop (6) for the profile (2) to be bent.
  7. A bending apparatus as claimed in any one of claims 4 to 6, characterized in that the annular groove wall (20) averted from the fixed point of support (23a) ends flush with the side stop (5) of the bearing belonging to the fixed point of support (23a), wherein the bending mandrel portion (22) adjacent to said annular groove wall (20) is surrounded by the bearing belonging to the fixed point of support (23a).
  8. A bending apparatus as claimed in any one of claims 1 to 7, characterized in that the adjustable portion of the bending mandrel (15) is arranged on the side averted from the displaceable contact side and is connected to the apparatus (1) by way of draw bars (9).
  9. A bending apparatus as claimed in any one of claims 1 to 8, characterized in that in the radial direction the displaceable point of support (23b) is of a width corresponding at least to the height of the profile.
  10. A bending apparatus as claimed in any one of claims 1 to 9, characterized in that the displaceable point of support (23b) is rotatably mounted.
  11. A bending apparatus as claimed in any one of claims 1 to 10, characterized in that the fixed point of support (23a) opposite the displaceable point of support (23b) is rotatably mounted.
  12. A bending apparatus as claimed in any one of claims 8 to 11, characterized in that the bending mandrel (15) is arranged approximately midway between both draw bars, the longitudinal direction of the draw bars (9) running in parallel and parallel to the longitudinal axis of the bending mandrel (15).
  13. A bending apparatus as claimed in any one of claims 8 to 12, characterized in that the plane formed by the axes of the draw bars (9) and bending mandrel (15) runs slantwise to the longitudinal direction of the profile (2).
  14. A bending apparatus as claimed in any one of claims 1 to 13, characterized in that the bending mandrel (15) is replaceable in its points of support (23a, 23b).
  15. A bending apparatus as claimed in any one of claims 1 to 14, characterized in that the bending mandrel (15) is at least partly, preferably wholly retractable relative to and into the bending unit (7) or similar bearing assembly holding it.
  16. A bending apparatus as claimed in claim 15, characterized in that the bending mandrel (15) is retractable so far as to clear the spacing it bridges in the position of use between the side stops (5, 6) for a profile to be bent.
EP93109204A 1992-08-05 1993-06-08 Apparatus for bending hollow profiles Expired - Lifetime EP0582064B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4225833 1992-08-05
DE4225833A DE4225833C2 (en) 1992-08-05 1992-08-05 Bending device for hollow profiles

Publications (2)

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

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AT (1) ATE134912T1 (en)
DE (2) DE4225833C2 (en)

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 (en) * 1995-10-31 2000-03-27 Lisec Peter DEVICE FOR BENDING OR CURVING HOLLOW PROFILES
DE19839735B4 (en) * 1998-09-01 2005-03-03 Franz Xaver Bayer Isolierglasfabrik Kg Device for bending a spacer-holding inner frame for an insulating glass pane
DE10138345B4 (en) * 2001-08-03 2008-12-04 Lenhardt Maschinenbau Gmbh Device for bending hollow profiled bars
AT512718B1 (en) * 2012-03-19 2013-12-15 Fux Maschb U Kunststofftechnik Gmbh Method and apparatus for bending a corner into a profile of thermoplastic base material

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3312764A1 (en) * 1983-04-09 1984-10-18 Fr. Xaver Bayer Isolierglasfabrik Kg, 7807 Elzach METHOD AND DEVICE FOR BENDING SPACER PROFILES FOR INSULATING GLASS PANELS
NO174376C (en) * 1986-04-07 1994-04-27 Rjukan Metall As Apparatus for bending metal profiles
DE3740921A1 (en) * 1987-12-03 1989-06-15 Bayer Isolierglasfab Kg DEVICE FOR PRODUCING A BEND ON A HOLLOW RECTANGLE PROFILE
DE3936621A1 (en) * 1989-11-03 1991-05-08 Philipps Claus Hermann Bender for metal sheets - has rollers of individual adjustable edge roller sections
DK169909B1 (en) * 1990-10-26 1995-04-03 Bayer Isolierglasfab Kg Bending machine

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
DE59301777D1 (en) 1996-04-11
DE4225833C2 (en) 1994-07-28
EP0582064A1 (en) 1994-02-09
DE4225833A1 (en) 1994-02-10
ATE134912T1 (en) 1996-03-15

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