EP0462961B1 - Dispositif pour plier des profilés d'écartement creux - Google Patents

Dispositif pour plier des profilés d'écartement creux Download PDF

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Publication number
EP0462961B1
EP0462961B1 EP91890098A EP91890098A EP0462961B1 EP 0462961 B1 EP0462961 B1 EP 0462961B1 EP 91890098 A EP91890098 A EP 91890098A EP 91890098 A EP91890098 A EP 91890098A EP 0462961 B1 EP0462961 B1 EP 0462961B1
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EP
European Patent Office
Prior art keywords
clamp
bending
countersupport
plane
symmetry
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
EP91890098A
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German (de)
English (en)
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EP0462961A1 (fr
EP0462961B2 (fr
Inventor
Peter Lisec
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Individual
Original Assignee
Individual
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Filing date
Publication date
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Priority claimed from AT112690A external-priority patent/AT397054B/de
Priority claimed from AT184090A external-priority patent/AT397775B/de
Application filed by Individual filed Critical Individual
Publication of EP0462961A1 publication Critical patent/EP0462961A1/fr
Publication of EP0462961B1 publication Critical patent/EP0462961B1/fr
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Publication of EP0462961B2 publication Critical patent/EP0462961B2/fr
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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
    • 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
    • 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
    • E06B2003/67395—Non-planar units or of curvilinear outline, e.g. for vehicles

Definitions

  • the invention relates to a device for bending hollow profile strips, in particular for bending hollow profile strips to spacer frames for insulating glass panes with a clamp for the hollow profile strip, which has two mutually movable clamping jaws for changing the mutual distance, which to the parallel to the bending plane side surfaces of the Bending hollow profile strip can be created, with a support arranged between the clamping jaws for the hollow profile strip to be bent, with an abutment assigned to the clamp, around which is bent and which bears during the bending process against the surface of the hollow profile strip that later forms the inner corner, and with one opposite the clamp Execution of the bending process pivotable bending lever, which can be placed on the section of the hollow profile strip projecting above the clamp.
  • Bending devices of this type are known in various embodiments.
  • Spacer frames made in one piece, with bent corners and devices for producing the same are also known from FR-PS 2 449 222 and DE-OS 32 21 986.
  • a guide is provided, on which the hollow profile strip, which is to be bent to form a spacer frame, is supported, supported at least in the region of the bending head, from below and only from one side.
  • a counter-holder is provided, which is mounted on a pivotable arm which is actuated by a working cylinder.
  • this counter-holder has both the function of a counter-holder and that of a tensioning element, so that special clamping devices are not required for the hollow profile strip to be bent.
  • the counter-holder can only be moved into or out of its a hollow profile strip against the guide, the active position by actuating the working cylinder in a part-circular arc-shaped movement path.
  • DE-OS 33 12 764 from which it is known to bend hollow profile strips to form spacers for insulating glass panes, a mandrel which can be placed against the hollow profile strip from the inside being provided in the region of the bending point.
  • the bending is carried out by pivoting a jaw, the other end of the profile strip being clamped between a movable clamping jaw and an abutment lying against the inside of the profile strip.
  • a problem with the known bending devices is that the sharp-edged bends required for use with insulating glass panes cannot always be achieved without problems, since there is a risk in part that the walls of the hollow profile strip tear during the bending process and the side surfaces of the hollow profile strips in the corner region, i.e. where they have been bent, do not always run flat, but have corrugations that complicate and hinder the subsequent processing of the spacer frame, in particular the coating of the side faces of the spacer frame with sealant or adhesive.
  • EP-A-318 748 describes a device for bending hollow profile strips to form spacer frames, the abutment of which is movably mounted and is intended to perform a pivoting and / or displacement movement during the bending process.
  • the pivoting movement of the abutment follows the movement of the bending lever which acts on the hollow profile to be bent from the outside. This is intended to ensure that the inner wall of the hollow profile moves inward during the bending movement and finally rests against the outer wall which is likewise deformed inward by the pressure roller.
  • a control cam can be provided, which additionally moves the abutment in the direction of its longitudinal extension during its pivoting movement.
  • the device for bending hollow profile strips described in DE-OS 29 23 769 has a tool which can be advanced during the bending process, by means of which the web of a longitudinal section of a spacer strip at the highest point of the bend is to be deformed during the bending process.
  • the "counter bearing tool” is to be pushed into the highest point of the bend with the help of a wedge during the bending process.
  • the bending tool should simultaneously form the lateral guide for the side flanks of the U-shaped spacer strip, the distance of the guide surface for these sides flanking the counter-bearing tool being unchangeable, since this is made in one piece .
  • the invention has for its object to provide an improved bending device (bending head) with which the hollow profile strips can be bent at largely arbitrary, preselectable angles of the legs adjacent to the corner to each other.
  • the device according to the invention for bending hollow profile strips 1 consists of a clamp 2 with a stationary jaw 3 and a jaw 4 which is movable relative to this (the jaw 4 is not shown in FIG. 1).
  • the movable clamping jaw 4 can be displaced in the direction of the double arrow 7 (FIG. 2) via guide pins 5 and 6, which are each arranged in pairs, so that the mouth width of the clamp 2 can be adapted to the width of the hollow profile strip 1 to be bent.
  • a lever 8 pivotally supported on the stationary jaw 3 is provided.
  • the lever 8 is coupled to the movable jaw 4 via a pull rod 9, which is pivotally supported on the jaw 4 via a bearing 10.
  • the pivot lever 8 is driven by a linear motor, not shown, e.g. a double-acting pressure medium cylinder, operated.
  • the bending device also has an abutment 20 which is interchangeably inserted in a carrier 21.
  • a groove 23 is recessed in the carrier 21, into which the abutment 20 can be inserted with a sliding fit and is held there, for example, by a screw 24.
  • the support 21 for the abutment 20 is mounted on a lever 25, which is about a machine frame fixed bearing 26, i.e. a bearing that is not movable relative to the fixed jaw 3 of the clamp 2, by means of a linear motor 27, e.g. a double-acting pressure medium cylinder, can be pivoted in the direction of the double arrow 28 from the active position shown in solid lines in FIG. 1 into the ready position shown in dash-dotted lines in FIG. 1.
  • a linear motor 27 e.g. a double-acting pressure medium cylinder
  • the support 21 for the abutment 20, as shown in FIG. 2 is adjustable perpendicular to the plane of symmetry of the clamp 2, namely in the direction of the double arrow 29 shown in FIG. 2.
  • the carrier 21 is guided displaceably via guides 30 in a holder 31 connected to the lever 25.
  • a linear motor in the exemplary embodiment shown a double-acting pressure medium cylinder 32, is provided, the piston rod 33 of which is coupled to the carrier 21 via a pull rod 34.
  • the abutment 20 can not only be pivoted in a plane parallel to the plane of symmetry of the clamping jaw 2 (double arrow 28), but also in a direction perpendicular to the plane of symmetry of the clamp 2 (double arrow 29), so that the abutment 20 is entirely out of the Bending area can be moved out.
  • the abutment 20 carries at its front tip, which is formed by two inclined surfaces 36, which form an acute angle to the longitudinal extension of the flexible abutment 20, a bead-like extension 35, which like Fig. 4 shows the upper surface of the hollow profile 1, which is clamped in the clamp 2 between the jaws 3 and 4, before the beginning of the bending process, namely when the bending abutment 20 swings slightly in its active position.
  • the front end of the abutment 20 and the bead-shaped extension 35 adjoining the inclined surfaces 36 there are made somewhat narrower than the clear distance between the mutually facing surfaces of the clamping jaws 3 and 4 of the clamp 2 the side walls 40 of the hollow profile strip 1 to be bent are also supported from the inside during the bending process, as is indicated in the section of FIG. 5.
  • an angled stop surface 41 is provided on the abutment 20 in the region of its front end on one side, which cooperates with a step 42 on the fixed jaw 3.
  • the device for bending according to the invention also has a bending lever 50 with a bending attachment 52 which can be pivoted about an axis which coincides with the axis 37 of the bead 35 at the front end of the bending tool 20 when the abutment 20 is in its operative position (the surfaces 41 rest on the surfaces 42 of the jaw 3).
  • the pivoting range of the bending lever 50 is not limited to the 90 ° shown in Fig. 1, but also goes beyond, so that after pivoting (arrow 28) and lateral displacement (arrow 29) of the bending abutment 20 also acute angles between the two the corner 51 adjacent leg of the hollow profile bar 1 generated in the hollow profile bar 1 can be bent.
  • the clamp 2 For the bending of a hollow profile strip 1 to a corner, the clamp 2 is opened and the hollow profile strip 1 is placed on the upper guide pins 6 or pushed onto the guide pins 6 by a conveyor. After closing the clamp 2, the inner surfaces of the jaws 3 and 4 are then on the side surfaces 40 of the hollow profile strip 1, the abutment 20 is moved into its operative position shown in FIGS. 1 and 4 and bulges the upwardly facing wall of the Hollow profile strip 1 a little down. Then the part of the hollow profile strip 1 protruding from the clamp 2 is pivoted upwards by pivoting the bending lever 50, forming a corner 51. If the angle at the corner 51 is to be more acute, the abutment 20 is pivoted back and pulled back laterally, whereupon the bending is continued to the desired angle.
  • the bending lever 50 is then pivoted back, the clamping jaw is opened and the hollow profile bar 1 is pushed forward until the position of the hollow profile bar 1 in which a further corner is to be produced is correctly aligned with respect to the bending tool. Then, as described above, the next corner is bent. This continues until a spacer frame with the desired number of corners 51 - usually four - is finished.
  • the bending device according to the invention is preferably suitable for bending machines with an upwardly facing contact surface for the angled parts of the hollow profile strip 1 (e.g. DE-GM 87 05 796). Another advantage is that the abutment 20 in its ready position does not hinder the removal of the spacer frame, since it is arranged behind the abutment surface mentioned.
  • the invention also extends to an embodiment in which a freely rotatable roller 70 is provided at the free end of the abutment 80 instead of the bead-shaped extension 35.
  • the roller 70 has a width corresponding to the extension 35. This embodiment is shown in FIG. 7.
  • Both embodiments of the bending device according to the invention can also be used to produce arches 71 in hollow profile strips.
  • the hollow profile strip 1 is pushed forward by a feed device when the abutment 20 or 80 is pivoted in, the bending lever 50 being pivoted somewhat upward as shown in FIG. 7.
  • the radius of curvature of the arc 71 thus produced in the hollow profile strip depends on how far the bending lever 50 is pivoted upwards, i.e. how high the e.g. made of plastic with a low coefficient of friction bending 52 above the feed path (determined by the guide pins 6).

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Apparatuses For Bulk Treatment Of Fruits And Vegetables And Apparatuses For Preparing Feeds (AREA)
  • Processing Of Terminals (AREA)
  • Cable Accessories (AREA)
  • Container Filling Or Packaging Operations (AREA)
  • Treatment Of Water By Oxidation Or Reduction (AREA)
  • Laying Of Electric Cables Or Lines Outside (AREA)
  • Flexible Shafts (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Magnetic Heads (AREA)
  • Ropes Or Cables (AREA)
  • Suspension Of Electric Lines Or Cables (AREA)
  • Securing Of Glass Panes Or The Like (AREA)

Claims (15)

1. Dispositif pour le pliage de barres de profilés creux (1), notamment pour le pliage de profilés creux pour former des intercalaires de vitrages isolants, comportant une pince (2) pour la barre de profilé creux (1), laquelle pince présente deux mâchoires de serrage (3, 4) qui sont mobiles l'une par rapport à l'autre aux fins de faire varier la distance qui les sépare et peuvent être appliquées contre les faces latérales (40) de la barre (1) à plier parallèles au plan de pliage, un appui (6) pour la barre de profilé creux (1) à plier disposé entre les mâchoires de serrage (3, 4), un contre-appui (20, 80) associé à la pince de serrage (2) autour duquel le pliage est effectué et qui, lors du processus de pliage, est appliqué contre la surface de la barre de profilé creux (1) formant par la suite l'angle intérieur, un levier de pliage (50) qui peut pivoter par rapport à la pince (2) pour réaliser l'opération de pliage et peut être appliqué contre la partie de la barre de profilé creux (1) qui dépasse au-delà de la pince (2), caractérisé par le fait que le contre-appui (20, 80) est fixé sur un support (21) qui peut être réglé aussi bien dans et parallèlement au plan de symétrie de la pince (2) que perpendiculairement audit plan de symétrie pour éloigner le contre-appui (20, 80) du plan de pliage.
2. Dispositif selon la revendication 1, caractérisé par le fait que le support (21) pour le contre-appui (20, 80) peut pivoter autour d'un axe (palier 26) perpendiculaire au plan de symétrie de la pince (2).
3. Dispositif selon la revendication 1 ou 2, caractérisé par le fait que le support (21) pour le contre-appui (20, 80) est guidé dans un guide-support (31) avec possibilité de déplacement perpendiculairement au plan de symétrie de la pince (2).
4. Dispositif selon l'une des revendications 1 à 3, caractérisé par le fait que le support (21) pour le contre-appui (20, 80) est monté sur un levier (25) qui est monté dans le dispositif avec possibilité de pivotement autour d'un axe perpendiculaire au plan de symétrie de la pince (2).
5. Dispositif selon l'une des revendications 1 à 4, caractérisé par le fait que le support (21) pour le contre-appui (20, 80) est guidé avec possibilité de déplacement perpendiculairement au plan de symétrie de la pince (2), de préférence par au moins deux barres (30) ou rails de guidage, dans un guide-support (31) fixé sur le levier (25).
6. Dispositif selon l'une des revendications 1 à 5, caractérisé par le fait que le contre-appui (20, 80) est fixé sur son support (21) de manière interchangeable.
7. Dispositif selon la revendication 6, caractérisé par le fait que le contre-appui (20, 80) est monté sur le support (21) avec ajustement glissant dans une rainure (23) aménagée dans ledit support (21) et est immobilisé par un dispositif de fixation, par exemple une vis (24).
8. Dispositif selon l'une des revendications 1 à 7, caractérisé par le fait que l'une des mâchoires (3) de la pince (2) est montée fixe sur le bâti du dispositif et par le fait que la deuxième mâchoire (4) est guidée avec possibilité de déplacement par rapport à la mâchoire (3) fixe.
9. Dispositif selon l'une des revendications 1 à 8, caractérisé par le fait qu'il est prévu, pour guider la mâchoire (4) mobile par rapport à la mâchoire (3) fixe, des barres de guidage (5, 6) qui sont orientées perpendiculairement au plan de symétrie de la pince (2) et s'engagent avec ajustement glissant dans des trous de l'une des mâchoires (3, 4) et par le fait que les barres de guidage (6) constituent simultanément un appui pour la barre de profilé creux à plier.
10. Dispositif selon la revendication 9, caractérisé par le fait que la mâchoire (4) mobile est couplée à un moteur linéaire, par exemple à un vérin à fluide sous pression, par l'intermédiaire d'un mécanisme à levier (8) - barre de traction (9).
11. Dispositif selon l'une des revendications 1 à 10, caractérisé par le fait que l'une des mâchoires (3, 4) de la pince (2), de préférence la mâchoire (3) fixe, présente un gradin (42) sur sa face tournée vers le contre-appui (20, 80) et par le fait que le contre-appui (20, 80) présente une surface conjuguée (41 de préférence une surface en angle qui, en position active pénètre dans le gradin (42).
12. Dispositif selon l'une des revendications 1 à 11, caractérisé par le fait que le contre-appui (20) présente à son extrémité libre un renflement (35) en forme de bourrelet qui est plus étroit que la barre de profilé creux (1) à plier.
13. Dispositif selon l'une des revendications 1 à 11, caractérisé par le fait qu'un galet (70) est monté à l'extrémité libre du contre-appui (80), lequel galet peut tourner librement autour d'un axe parallèle à l'axe de pivotement (37) du levier de pliage (50).
14. Dispositif selon la revendication 12 ou 13, caractérisé par le fait que le levier de pliage (50) peut pivoter autour d'un axe (37) qui est perpendiculaire au plan de symétrie de la pince (2) et est coaxial à l'axe du bourrelet (35) ou à l'axe de rotation du galet (70) à l'extrémité antérieure du contre-appui (20, 80), lorsque ledit contre-appui (20, 80) se trouve en position active.
15. Dispositif selon l'une des revendications 1 à 14, caractérisé par le fait que l'axe de pivotement (palier 26) du levier (25) portant le support (21) pour le contre-appui (20, 80) est décalé par rapport à l'axe de pivotement du levier de pliage (50).
EP91890098A 1990-05-21 1991-05-07 Dispositif pour plier des profilés d'écartement creux Expired - Lifetime EP0462961B2 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
AT112690A AT397054B (de) 1990-05-21 1990-05-21 Vorrichtung zum biegen von hohlprofilleisten
AT1126/90 1990-05-21
AT1840/90 1990-09-10
AT184090A AT397775B (de) 1990-09-10 1990-09-10 Verfahren und vorrichtung zum krümmen von hohlprofilleisten

Publications (3)

Publication Number Publication Date
EP0462961A1 EP0462961A1 (fr) 1991-12-27
EP0462961B1 true EP0462961B1 (fr) 1994-03-09
EP0462961B2 EP0462961B2 (fr) 1998-09-09

Family

ID=25594975

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91890098A Expired - Lifetime EP0462961B2 (fr) 1990-05-21 1991-05-07 Dispositif pour plier des profilés d'écartement creux

Country Status (9)

Country Link
US (1) US5117669A (fr)
EP (1) EP0462961B2 (fr)
JP (1) JPH0768323A (fr)
AT (1) ATE102514T1 (fr)
DE (2) DE59101140D1 (fr)
DK (1) DK0462961T3 (fr)
ES (1) ES2051109T3 (fr)
IT (2) IT221861Z2 (fr)
NO (1) NO179684C (fr)

Families Citing this family (11)

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Publication number Priority date Publication date Assignee Title
DE59100838D1 (de) * 1990-06-07 1994-02-24 Peter Lisec Verfahren und Vorrichtung zum Biegen von Hohlprofilleisten zu Abstandhalterrahmen für Isolierglasscheiben.
AT406236B (de) * 1995-10-31 2000-03-27 Lisec Peter Vorrichtung zum biegen oder krümmen von hohlprofilleisten
US6739101B2 (en) * 2001-01-19 2004-05-25 Cardinal Ig Company Methods and apparatus for manufacturing muntin bar assemblies
US6591988B2 (en) 2001-01-19 2003-07-15 Cardinal Glass Industries, Inc. Material handling for the insulating glass industry
US6962476B2 (en) * 2002-01-15 2005-11-08 Cardinal Ig Company Methods and apparatus for handling fragile bars
WO2006068461A1 (fr) * 2004-12-23 2006-06-29 Asml Netherlands B.V. Appareil lithographique et sa structure de support
DE102007025153B4 (de) * 2007-05-29 2010-12-30 Htk Synerg Ltd. Rahmen für Isolierglasscheiben
CN101671127B (zh) * 2009-09-02 2012-07-25 北方工业大学 中空玻璃分子筛灌装机三联缸定位机构
CN104668355A (zh) * 2013-11-28 2015-06-03 昆山市卓航精密模具有限公司 冲压模具
US10183363B2 (en) 2015-08-04 2019-01-22 Cardinal Ig Company Spacer formation cell
WO2020070245A1 (fr) 2018-10-04 2020-04-09 Lisec Austria Gmbh Procédé et dispositif de fabrication d'un cadre d'écartement pour verre isolant

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CA1134125A (fr) * 1978-06-14 1982-10-26 Theo Janssens Panneaux creux, et dispositif et methode de fabrication connexes
FR2449222A1 (fr) * 1979-02-15 1980-09-12 Kaeuferle Stahlbau J Perfectionnements aux procedes et dispositifs de fabrication de plaques composites, notamment de glaces doubles
CH660398A5 (de) * 1982-01-21 1987-04-15 Peter Lisec Abstandhalterrahmen fuer isolierglasscheiben sowie verfahren zur herstellung desselben und vorrichtung zur durchfuehrung des verfahrens.
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AT401627B (de) * 1987-03-09 1996-10-25 Lisec Peter Vorrichtung zum herstellen von abstandhalterrahmen für isolierglasscheiben
AT391821B (de) * 1987-05-11 1990-12-10 Lisec Peter Vorrichtung zur herstellung von abstandhalterrahmen fuer isolierglas
DE3740921A1 (de) * 1987-12-03 1989-06-15 Bayer Isolierglasfab Kg Vorrichtung zur herstellung einer biegung an einem hohlen rechteck-profil

Also Published As

Publication number Publication date
NO179684B (no) 1996-08-19
IT221862Z2 (it) 1994-12-06
DE4116268C2 (fr) 1993-02-18
US5117669A (en) 1992-06-02
EP0462961A1 (fr) 1991-12-27
DE4116268A1 (de) 1991-12-12
DK0462961T3 (da) 1994-04-05
ITMI910429V0 (it) 1991-05-20
IT221861Z2 (it) 1994-12-06
NO179684C (no) 1996-11-27
JPH0768323A (ja) 1995-03-14
ITMI910429U1 (it) 1992-11-20
ES2051109T3 (es) 1994-06-01
DE59101140D1 (de) 1994-04-14
ITMI910430V0 (it) 1991-05-20
ATE102514T1 (de) 1994-03-15
EP0462961B2 (fr) 1998-09-09
NO911926L (no) 1991-11-22
NO911926D0 (no) 1991-05-16
ITMI910430U1 (it) 1992-11-20

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