EP0459971B1 - Procédé et dispositif pour obtenir des parties pliées dans les profilés d'écartement creux - Google Patents

Procédé et dispositif pour obtenir des parties pliées dans les profilés d'écartement creux Download PDF

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Publication number
EP0459971B1
EP0459971B1 EP91890106A EP91890106A EP0459971B1 EP 0459971 B1 EP0459971 B1 EP 0459971B1 EP 91890106 A EP91890106 A EP 91890106A EP 91890106 A EP91890106 A EP 91890106A EP 0459971 B1 EP0459971 B1 EP 0459971B1
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EP
European Patent Office
Prior art keywords
hollow
section strip
holding
down clamp
hollow profile
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
EP91890106A
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German (de)
English (en)
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EP0459971A1 (fr
EP0459971B2 (fr
Inventor
Peter Lisec
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Individual
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Individual
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Priority claimed from AT112690A external-priority patent/AT397054B/de
Priority claimed from AT184090A external-priority patent/AT397775B/de
Priority claimed from AT198790A external-priority patent/AT405912B/de
Application filed by Individual filed Critical Individual
Publication of EP0459971A1 publication Critical patent/EP0459971A1/fr
Application granted granted Critical
Publication of EP0459971B1 publication Critical patent/EP0459971B1/fr
Publication of EP0459971B2 publication Critical patent/EP0459971B2/fr
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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 method for producing continuously curved sections in hollow profile strips, in which the hollow profile strip is supported, supported from below, under a hold-down device between guide jaws and is deflected after the hold-down device from the conveying direction of the hollow profile strip by a ramp surface of a bending lever inclined to the conveying direction.
  • One-piece, with more or less sharp-edged corners made of hollow profile strips spacer frames and devices for producing the same are from DE-GM 87 05 796, DE-PS 32 21 881, US-PS 4,836,005, FR-PS 2,444 222 and DE-OS 32 21 986 known.
  • 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 resting on 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 surfaces of the spacer frame with sealant or adhesive.
  • the procedure is such that after the spacer is attached to a pane edge, but before it is pivoted, the glass plate is displaced parallel to this pane edge by a distance corresponding to its length, that the pivoting of the glass plate takes place in each case about an identical fixed pivot axis and that the spacer is bent about this pivot axis.
  • the spacer is initially only arranged over part of the length of the first pane edge and the spacer is cut off with a protrusion after it has been attached to the pane-parallel surface of the last pane edge. Only then is the protruding part bent around the pivot axis of the glass pane by 90 ° and attached to the glass pane.
  • hollow profile strips are bent to form spacers for insulating glass panes by pushing them forward during bending and moving a bending lever oscillating towards and away from the abutment, the profile being advanced during the movement of the bending tool and during the next movement of the bending tool towards the abutment is applied to a neighboring point of the profile opposite the previously bent point and bent.
  • different arches and radii of curvature can be generated. However, there are no continuously curved arches, but rather sections of the hollow profile strip which are angled several times.
  • Bending machines for hollow profile bars which are equipped with rollers, are also known.
  • DE-OS 30 34 436 describes a roll bending machine which has three rotationally driven rolls, the hollow profile bar being held in contact with the third roll by two rolls.
  • the radius of the curvature in the hollow profile bar corresponds to the radius of the third roller around which the hollow profile bar was bent.
  • the object of the invention is a method and to provide a device with which continuously curved hollow profile strips can be produced, the radii of curvature and the length of the curved section of the hollow profile strip being largely freely selectable.
  • the method according to the invention has considerable advantages over the operation of previously known bending devices.
  • continuously (continuously) curved sections can be produced.
  • the invention has the advantage that the radius of curvature and / or the length of the curvature can be set very easily.
  • Another advantage is the proposal according to the invention to effect the deflection with the aid of a run-up surface instead of with rollers as is known. This is particularly so in view of the fact that the run-up surface as part of the pivotable bending lever can then be easily adjusted to the desired deflection angle.
  • the hollow profile strip to be curved is advanced by a feed device, which is advantageously designed as a gripper or has a gripper.
  • a feed device which is advantageously designed as a gripper or has a gripper.
  • this saves drives for the rollers, as are necessary for the known devices, and offers the advantage over pulling the hollow profile strip that curved or bent regions (corners) produced therein are not deformed again.
  • a device suitable for carrying out the method according to the invention is based on DE-A-38 07 529, from which the features of the introductory part of claim 6 are known.
  • the device according to the invention differs from this known device by the features mentioned in the characterizing part of claim 6.
  • the hollow profile strip to be bent to the spacer frame is advanced by the feed device (gripper) exactly by the required distance during the bending process, which e.g. corresponds to the respective curved section of the spacer frame. If the length of the curved section is greater than the maximum stroke of the gripper, the profile strip is advanced in two or at most more than two steps.
  • the procedure can be such that the first (or the first) stroke (strokes) correspond to a predetermined length (the maximum stroke) and the last stroke is adapted to the required length of the curved frame section.
  • a hollow profile strip 53 is transported on a conveyor track 54, which is arranged at the lower end of a support wall 60, up to a stop 57 in the region of a bending point 58/59.
  • the stop 57 can also be arranged in front of the bending point so that it can be lowered into the conveyor track.
  • the stop 57 can be equipped with a switch which stops the feed conveyor (not shown) and the detection of the hollow Profile bar 53 triggers by the gripper 51.
  • the hollow profile bar 53 is gripped by the gripper 51 in a precisely defined position.
  • the section 53 'of the hollow profile strip 53 which is transported beyond the bending point 58/59 is bent by the bending lever 59 around an abutment 58 in contact with the supporting wall 60.
  • the bending point preferably has the construction described below with reference to FIGS. 3 to 8.
  • the device can, for example, have the structure known from DE-GM 87 05 796 and have a support finger (indicated in FIG. 9), as is also provided in the known device.
  • the device for bending hollow profile strips 53 shown in FIGS. 3 to 8 consists of a clamp 2 with a stationary clamping jaw 3 and a clamping jaw 4 movable relative to this (the jaw 4 is not shown in FIG. 3).
  • the movable clamping jaw 4 can be displaced in the direction of the double arrow 7 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 53 to be bent.
  • a lever 8 pivotally supported on the fixed jaw 3 is provided, which is coupled via a pull rod 9, which is pivotally supported on the movable jaw 4 via a bearing 10 is.
  • the pivot lever 8 is driven by a linear motor, not shown, e.g. a double-acting pressure cylinder actuated.
  • the bending device also has a hold-down 20, which serves as an abutment during bending.
  • the hold-down device 20 is interchangeably inserted in a carrier 21.
  • a groove 23 is recessed in the carrier 21, in which the hold-down device 20 can be inserted with a sliding fit and is held, for example, by a screw 24.
  • the bracket 21 for the hold-down 20 is mounted on a lever 25 which is about a bearing 26 fixed to the machine frame, i.e. a bearing that is not movable relative to the stationary jaw 3 of the clamp 2, using 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. 3 into the standby position shown in broken lines in FIG. 3.
  • a linear motor 27 e.g. a double-acting pressure medium cylinder
  • the carrier 21 for the hold-down device 20, as shown in FIG. 4 can be adjusted perpendicular to the plane of symmetry of the clamp 2, namely in the direction of the double arrow 29 shown in FIG. 4.
  • 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 support 21 via a pull rod 34.
  • the hold-down 20 can not only be pivoted in a plane parallel to the plane of symmetry of the clamp 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 hold-down 20 is completely removed can be moved out of the bending area.
  • the hold-down 20 carries at its front end, which is formed by two inclined surfaces 36, which form an acute angle to the longitudinal extension of the hold-down 20, a bead-like extension 35, which like Fig. 6 shows that the upper surface of the hollow profile 53, which is clamped in the clamp 2 between the jaws 3 and 4, bulges slightly before the start of the bending process when the hold-down device 20 is pivoted into its active position.
  • the front end of the holding-down device 20 and the bead-shaped extension 35 adjoining the inclined surfaces 36 thereon 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 the hollow profile strip 53 to be bent is also supported from the inside during the bending process, as is indicated in the section of FIG. 7.
  • the hold-down device 20 In order to correctly align the hold-down device 20, in particular its bead-shaped extension 35, with respect to the clamping jaw 2 and thus with respect to the axis 37 (FIG. 5), about which the hollow profile strip 53 is bent, the hold-down device 20 is on one side in the region of its front end an angled stop surface 41 is provided which interacts with a step 42 on the fixed jaw 3. If the stop surface 41 abuts the step 42 of the clamping jaw 3, then the axis 37 of the bead-shaped extension 35 provided at the front end of the hold-down device 20 is correctly aligned.
  • the bending device according to the invention also has a bending lever 59 with a bending attachment 62 which can be pivoted about an axis which coincides with the axis 37 of the bead 35 at the front end of the hold-down device 20 when it is in its active position (the surfaces 41 lie against the Surfaces 42 of the jaw 3).
  • the pivoting range of the bending lever 59 is not limited to the 90 ° shown in Fig. 3, but also goes beyond, so that after swiveling (arrow 28) and lateral displacement (arrow 29) of the hold-down device 20 also acute angles between the two the corner 61 adjacent leg of the hollow profile bar 53 generated in the hollow profile bar 53 can be bent.
  • the clamp 2 When using the device for bending a hollow profile bar 53 to a corner 61, the clamp 2 is opened and the hollow profile bar 53 is placed on the upper guide pins 6 or transported on the conveyor track 54 to the pins 6. After closing the clamp 2, the inner surfaces of the jaws 3 and 4 are then on the side surfaces 40, the hold-down device 20 is moved into its operative position shown in FIGS. 3 and 6 and thereby bulges the upward-facing wall of the hollow profile strip 53 somewhat down one. Then, by pivoting the bending lever 59, the portion 53 'of the hollow profile bar 53 protruding from the clamp 2 is pivoted to form a corner 61. If the angle at the corner 61 is to be more acute, the hold-down device 20 is pivoted back and pulled back laterally, whereupon the bending is continued to the desired angle.
  • the bending lever 59 is pivoted back, the clamp 2 is opened and the hollow profile bar 53 is advanced by the gripper 52 until the location of the hollow profile bar 53 in which the next corner 61 is to be produced is correctly aligned with the bending tool and then, as described above, the next corner 61 is bent. This continues until a spacer frame with the desired number of corners 61 - usually four - is finished.
  • An incremental encoder 56 determines the exact measurement of the distance traveled by the carriage 51, and the movement of the carriage 51 is controlled by the latter.
  • the incremental encoder 56 is mounted on the drive motor 55 or on the movement 54 of the slide 51.
  • the carriage 51 is driven by an endless toothed belt, for example, and is guided on a guide running parallel to the conveyor track 54.
  • the engagement of the toothed belt in the drive gear of the drive motor 55 is exact and free of play, so that an incremental encoder 56 mounted directly on the motor / gear unit can also accurately register the distance traveled by the slide 51.
  • the effective travel distance of the slide 51 corresponds to the profile length which the process computer determines for a bending process.
  • the drive motor 55 does not have to be fixed in place, but can also be arranged on the slide 51.
  • the drive gear of the drive motor 55 then engages in the toothed rack fastened to the guide 54 of the slide 51, it being possible for an incremental encoder 56 to also be mounted on the drive motor 55 or on the slide 51.
  • the gripper 52 mounted on the slide 51 is released.
  • the slide 51 then moves back to the starting position (reference point) at high speed.
  • the gripper 52 detects the hollow profile bar 53 again and the slide 51 moves back exactly after the bending process by the distance specified by the process computer, whereby it advances the hollow profile bar 53 without slippage.
  • the conveyor track 54 can be a simple slideway.
  • a hollow profile bar 53 is so far advanced by a conveying device, which can be, for example, the slide 51 with the gripper 52, for example, starting from the reference position, which is determined by the fitting 57, that the section 53 'projecting over the hold-down device 20 is the hollow Profile bar 53 corresponds to the length of the first leg of the spacer frame to be produced, which length is reduced by a certain distance "x". This position is shown in Fig. 9b. Now the jaws 3 and 4 lie against the hollow profile bar 53 and the slide 51 returns to its starting position, which is shown in FIG. 9a.
  • the section 53 ′ around the hold-down device 20 is bent upwards by the bending lever 59 in the direction of the arrow in FIG. 9b.
  • the hollow profile bar 53 is released from the jaws 3 and 4 and the slide 51 moves forward with the gripper 52 placed on the hollow profile bar 53 from both sides or from above and below into the position shown in FIG. 9c , whereby it advances the hollow profile bar 53 so far that the next (second) location in which a corner 61 is to be created in the hollow profile bar 53 is aligned with the hold-down device 20.
  • the jaws 3 and 4 close again and hold the hollow profile bar 53 immovably and the next (second) bending process is carried out with the aid of the bending lever 59, while the slide 51 returns to its starting position.
  • the slide 51 moves forward with the grippers 52 applied to the hollow profile bar 53 by a distance which corresponds to the length of the next leg of the spacer frame to be produced, so that the next (third) bending point is aligned with the hold-down device 20 .
  • the clamping jaws 3, 4 close again and hold the hollow profile strip 53 firmly, whereupon the third bending process is carried out.
  • the jaws 3 and 4 are released again from the hollow profile bar 53 and the slide 51 moves again with the gripper 52 applied to the hollow profile bar 53 so far that the next (fourth) bending point relative to the hold-down device 20 is accurate is aligned.
  • this stroke corresponds exactly to the stroke before the execution of the second bending process.
  • the jaws 3 and 4 close again and hold the hollow profile bar 53 in place.
  • the hollow profile strip 53 is cut off at the point indicated by the arrow 170 (FIG. 9e).
  • the length of the piece of hollow profile bar 53 thus obtained in FIG. 9e to the left of the hold-down device 20 corresponds exactly to the predetermined distance "x" by which the hollow profile bar 53 was advanced less than the length of the first before the first bending process (FIG. 9b) Leg (Fig. 9b) corresponds.
  • the fourth bending process is carried out, the front end 172 of the supplied hollow profile bar 53 and / or the section 173 of the partially finished spacer frame being deflected out of the bending plane or the front end 172 simply being moved down so that the fourth bending process is not hindered.
  • the spacer frame apart from the connection of the two ends of the hollow profiled strip 53 adjoining each other at the joint 171 (FIG. 9f), is removed from the device after the jaws 3 and 4 are released again and the hold-down device 20 is removed the bending plane have been removed.
  • the adjoining ends of the hollow profile strip 53 bent to form the spacer frame at the joint 171 are connected to one another by inserting a connector or by butt welding.
  • a welding device suitable for this purpose is known for example from EP-A-0 192 921.
  • a hold-down device 80 is inserted into the carrier 21 of the tool and has a freely rotatable roller 70 at its free end facing the hollow profile strip 53 (Fig. 10 to 17). Through this roller 70, the hollow profile bar 53, which is guided between the jaws 3 and 4 - i.e. the jaws 3 and 4 no longer clamp the hollow profile strip 53 - held against the guide rods 6 serving as support from below.
  • spacer frames with at least one corner 61 and with at least one curved section 71 are to be produced (see FIG. 22), it is also possible to use a hold-down device without a freely rotatable roller 70, i.e. with a hold-down device 20, as shown in FIGS. 3 to 8, which has a lug at its front end similar or identical to the lug 35, or as described further below with reference to FIGS. 19 to 21, is trained.
  • the bending lever 59 is so inclined when generating curved sections 71 in hollow profile strips 53 with respect to the conveying direction of the hollow profile strip 53 according to the desired radius of curvature, so that the hollow profile strip 53 emerging between the jaws 3 and 4 is deflected upwards by the bending attachment 62 on the bending lever 59 and thereby is continuously curved.
  • the width of the roller 70 is somewhat narrower than the width of the hollow profile strip 53 to be curved, so that the inner wall the hollow profile bar 53, as can also be seen from FIG. 16, is deformed inward during the curving process. This reduces the compression of the inner wall of the hollow profile bar 53, so that there is a largely smooth inner wall in the curved section 71 of the hollow profile bar 53.
  • FIG. 18 A particularly favorable embodiment of a gripper 51, which ensures the necessary frictional engagement for the precise advancement of the hollow profile strip 53 to be curved, is shown in FIG. 18. It can be seen that the lower jaw 75 is rigidly connected to a carriage 76 guided in the conveying direction on at least one guide rail, whereas the upper jaw 77 can be pivoted away from the jaw 75 via parallelogram link 78 by a pressure medium motor 79. The movable jaw 77 can therefore be pivoted behind the support wall 60 of the device so that it does not hinder the removal of a finished bent spacer frame.
  • the stop 57 based on the conveying direction of the hollow profile bar 53, can be arranged in front of the tool with the hold-down device 20 or 80 and the bending lever 59.
  • the stop 57 is preferably equipped with a limit switch and is located in relation to the conveying direction of the hollow profile bar 53 after the end of the stroke of the gripper 51 that is remote from the tool. In this way, a hollow profile bar 53 can be conveyed into the device up to the fitting 57 are, whereupon the switch is actuated and controlled by a sequential circuit, the gripper 51 takes over the hollow profile bar 53 in a precisely defined position.
  • spacer frames with at least one sharply bent corner with any angle between the legs of the spacer frame adjacent to the corner 61 and with at least one curved section 71 can be produced from one and the same hollow profile strip 53.
  • both a hold-down 80 and a hold-down 20 can be mounted on the carrier 21. These tools are then occasionally moved into the active position, which is symmetrical to the jaws 3 and 4. This is not a problem, since the carrier 21, as described above with reference to FIGS. 1 to 8, can be raised and adjusted transversely to the bending plane.
  • FIGS. 19 to 21 corresponds essentially to the device described with reference to FIGS. 10 to 17, but instead of the freely rotatable roller 70, a slide 81 is inserted in the hold-down device 80, through which the inner wall of the hollow profile strip 53, such as can be seen from Fig. 21, is deformed inward during the bending.
  • the devices described with reference to FIGS. 10 to 21 can be designed like the device described with reference to FIGS. 1 to 8 and also as shown in FIG. 9.
  • Both the hold-down device 80 with the roller 70 and the hold-down device 20 with its extension 35 are in the conveying direction, i.e. adjustable parallel to a plane connecting the guide pins 6.
  • the position of the hold-down devices can thus be adapted to the geometric conditions which result after changing the angular position of the lever 50 with the run-up surface 62.
  • hollow profile strips 53 can also be bent to form spacer frames for insulating glass panes which have at least one sharp-angled corner 61 and at least one section 71, for example curved according to a partial arc.
  • An example of such a frame is shown in FIG. 22.
  • the hold-down device 20 with the attachment 35 or the hold-down device 80 with the attachment 81 is used, even without a tool change, sharp-edged corners when generating these corners is the feed for the hollow profile bar 53 when the bending lever 59 is moved up stopped - as well as (arc-shaped) curved sections - the feed for the hollow profile bar 53 is actuated with the bending lever 59 actuated more or less strongly with the run-up surface 62 - can be produced.

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  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
  • Container Filling Or Packaging Operations (AREA)
  • Food-Manufacturing Devices (AREA)
  • Laminated Bodies (AREA)

Claims (22)

1. Procédé pour réal iser des sections (71) à courbure continue dans des barres de profilés creux (53), dans lequel la barre de profilé creux (53), supportée par le dessous, est transportée sous un dispositif presseur (20, 80) entre des joues de guidage (3,4) et, à la sortie du dispositif presseur (20, 80), est déviée par rapport à la direction de transport de la barre de profilé creux (53) par une surface d'appui (62) d'un levier de pliage (59) inclinée par rapport à la direction de transport de la barre, caractérisé par le fait que la surface d'appui (62) reste fixe en position active pendant le processus de cintrage et par le fait que la paroi de la barre de profilé creux (53), côté extérieur de la courbe, glisse le long de la surface d'appui (62) inclinée pendant toute la durée du processus de cintrage.
2. Procédé selon la revendication 1, caractérisé par le fait qu'au cours du cintrage de la barre de profilé creux (53), la paroi de la barre de profilé creux (53), côté intérieur de la courbe, est déformée en direction de la paroi de la barre de profilé creux (53), côté extérieur de la courbe, par le dispositif presseur (20, 80).
3. Procédé selon la revendication 1 ou 2, caractérisé par le fait que l'on règle le rayon de la courbure par la valeur de la déviation de la barre de profilé creux (53).
4. Procédé selon l'une des revendications 1 à 3, caractérisé par le fait que l'on règle la longueur de la section (71) cintrée de la barre de profilé creux (53) par la valeur de l'avance avec déviation de la barre de profilé creux (53) après le dispositif presseur (20, 80).
5. Procédé de fabrication d'intercalaires pour des vitrages isolants qui comportent au moins une section courbe (71) et au moins un angle vif (61), caractérisé par le fait que, lors de la réalisation de la section en arc de cercle (71), on fait avancer la barre de profilé creux (53) sous le dispositif presseur (20, 80), entre des joues de guidage (3, 4) et, à la sortie du dispositif presseur (20, 80) on dévie la barre de profilé creux (53) par rapport à sa direction de transport conformément au procédé selon l'une des revendications 1 à 4 et par le fait que pour réaliser un angle vif (61) dans la barre de profilé creux (53), on plie la partie de celle-ci (53) qui dépasse au-delà du dispositif presseur (20, 80) en faisant pivoter de l'angle souhaité le levier de pliage (59), sa surface d'appui (62) étant appliquée contre la partie dépassante de la barre de profilé (53), tandis que la barre de profilé creux est arrêtée.
6. Dispositif pour réaliser des sections (71) à courbure continue dans des barres de profilés creux (53), en particulier lors de la fabrication d'intercalaires pour vitrages isolants, comportant un chemin de transport (54) sensiblement horizontal, un dispositif d'avance (51, 52) associé au chemin de transport (54) pour amener la barre de profilé creux à un outil, lequel dispositif présente deux joues de guidage (3, 4) entre lesquelles la barre de profilé est placée, un dispositif presseur (20, 80) pour la barre de profilé creux (53), dont l'extrémité antérieure (53, 70, 81), en position active, est appliquée contre la paroi intérieure tournée vers lui de la barre de profilé (53) et un levier (59) qui peut pivoter vers le haut par rapport à la direction de transport et présente une surface d'appui (62) pour la barre de profilé creux (53), caractérisé par le fait que le chemin de transport (54) se trouve à l'extrémité inférieure d'une surface d'appui (69) (latérale) pour la section courbe (71) au nombre d'au moins une de la barre de profilé creux (53), par le fait que les joues de guidage (3, 4) sont disposées de chaque côté de la barre de profilé creux (53), par le fait que le dispositif presseur (20, 80) est mobile et, en position active, s'engage par son extrémité antérieure (35, 70, 81) entre les joues de guidage (3, 4) de telle sorte que l'extrémité antérieure (35, 70, 81) du dispositif presseur (20, 80) soit appliquée contre la paroi intérieure de la barre de profilé creux et par le fait que le levier de pliage (59) avec sa surface d'appui (62) pour la partie de barre de profilé creux (53) sortant des joues de guidage (3, 4) peut être immobilisée dans une position angulaire quelconque par rapport à la direction de transport de la barre de profilé creux (53).
7. Dispositif selon la revendication 6, caractérisé par le fait que le dispositif presseur (20, 80) présente un jeu latéral par rapport aux joues de guidage (3,4) et peut être appliqué contre la paroi intérieure de la barre de profilé creux (53) de manière telle que, pendant le processus de cintrage, ladite paroi intérieure soit déformée en direction de la paroi extérieure de la barre de profilé creux (53).
8. Dispositif selon la revendication 6 ou 7, caractérisé par le fait que le dispositif d'avance est une pince (52) qui peut être appliquée sur la barre de profilé creux (53) et est montée sur un chariot (51) avec possibilité de déplacement suivant un mouvement de va-et-vient parallèlement à la direction de transport de la barre de profilé creux (53), la pince agissant sur la barre de profilé creux (53) durant sa course en direction de l'outil.
9. Dispositif selon la revendication 8, caractérisé par le fait que la pince (52) comporte des mâchoires (77, 75) qui peuvent être appliquées par le dessus et par le dessous sur la barre de profilé creux (53).
10. Dispositif selon la revendication 9, caractérisé par le fait que la mâchoire inférieure (75) de la pince (52) est montée fixe sur le chariot (51) tandis que la mâchoire supérieure (77) de la pince (52) est montée mobile sur le chariot (51).
11. Dispositif selon la revendication 10, caractérisé par le fait que la mâchoire (75) mobile est montée sur un support (76) au moyen d'un mécanisme à parallélogramme (78).
12. Dispositif selon l'une des revendications 6 à 11, caractérisé par le fait que le dispositif presseur (20, 80) est fixé sur un support (21) qui peut être réglé aussi bien dans ou parallèlement au plan de symétrie des joues de guidage (3, 4) que perpendiculairement audit plan de symétrie aux fins d'éloigner le dispositif presseur (20, 80) du plan de pliage.
13. Dispositif selon la revendication 12, caractérisé par le fait que le support (21) pour le dispositif presseur (20, 80) peut pivoter autour d'un axe (26) perpendiculaire au plan de symétrie des joues de guidage (3, 4).
14. Dispositif selon la revendication 12 ou 13, caractérisé par le fait que le support (21) pour le dispositif presseur (20, 80) est guidé dans un guide- support (31) avec possibilité de déplacement perpendiculairement au plan de symétrie des joues de guidage (3, 4).
15. Dispositif selon l'une des revendications 12 à 14, caractérisé par le fait que le support (21) pour le dispositif presseur (20,80) est monté sur un levier (25) qui est monté dans le dispositif avec possibilité de pivotement autour d'un axe (26) perpendiculaire au plan de symétrie des joues de guidage (3, 4).
16. Dispositif selon l'une des revendications 12 à 15, caractérisé par le fait que le dispositif presseur (20, 80) est fixé sur son support (21) de manière interchangeable.
17. Dispositif selon l'une des revendications 6 à 16, caractérisé par le fait que le dispositif presseur (20) porte à son extrémité antérieure un patin (35, 81).
18. Dispositif selon l'une des revendications 5 à 16, caractérisé par le fait le dispositif presseur (80) porte à son extrémité antérieure un galet (70) qui peut tourner librement.
19. Dispositif selon l'une des revendications 12 à 18, caractérisé par le fait qu'il est monté sur le support (21), en tant que dispositif presseur pouvant être utilisé de manière sélective, un dispositif presseur (20) qui à son extrémité antérieure porte un patin (35, 81) appliqué contre la barre de profilé creux (53) et un dispositif presseur (80) qui à son extrémité antérieure porte un galet (70) tournant librement, lesquels dispositifs presseurs peuvent être amenés alternativement et de manière sélective dans leur position active entre les joues de guidage (3, 4).
20. Dispositif selon l'une des revendications 17 à 19, caractérisé par le fait que le patin (35, 81) ou le galet (70) est plus étroit que la barre de profilé creux (53).
21. Dispositif selon l'une des revendications 17, 19 ou 20 caractérisé par le fait que le patin (35, 81) est courbé ou bombé au moins autour d'un axe perpendiculaire à la direction de transport ou au plan de pliage.
22. Dispositif selon l'une des revendications 17 à 21, caractérisé par le fait que le patin (81) ou le galet (70) est fixé avec possibilité de remplacement sur le dispositif presseur (20, 80).
EP91890106A 1990-05-21 1991-05-15 Procédé et dispositif pour obtenir des parties pliées dans les profilés d'écartement creux Expired - Lifetime EP0459971B2 (fr)

Applications Claiming Priority (9)

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
AT112690 1990-05-21
AT184090A AT397775B (de) 1990-09-10 1990-09-10 Verfahren und vorrichtung zum krümmen von hohlprofilleisten
AT1840/90 1990-09-10
AT184090 1990-09-10
AT198790 1990-10-02
AT1987/90 1990-10-02
AT198790A AT405912B (de) 1990-10-02 1990-10-02 Verfahren und vorrichtung zum krümmen von hohlprofilleisten

Publications (3)

Publication Number Publication Date
EP0459971A1 EP0459971A1 (fr) 1991-12-04
EP0459971B1 true EP0459971B1 (fr) 1994-03-09
EP0459971B2 EP0459971B2 (fr) 2001-12-12

Family

ID=27147132

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Application Number Title Priority Date Filing Date
EP91890106A Expired - Lifetime EP0459971B2 (fr) 1990-05-21 1991-05-15 Procédé et dispositif pour obtenir des parties pliées dans les profilés d'écartement creux

Country Status (7)

Country Link
EP (1) EP0459971B2 (fr)
JP (1) JPH0768322A (fr)
AT (1) ATE102513T1 (fr)
DE (2) DE59101137D1 (fr)
DK (1) DK0459971T3 (fr)
ES (1) ES2051110T5 (fr)
NO (1) NO179493C (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK282090A (da) * 1990-11-28 1992-05-29 Skovgaard & Co As Fremgangsmaade samt apparat til fremstilling af lukkede afstandsrammer af hule tyndvaeggede profiler
DE4214205A1 (de) * 1992-04-30 1993-11-04 Happich Gmbh Gebr Vorrichtung zum biegen von profilleistenabschnitten o. dgl.
EP0579593B1 (fr) * 1992-07-16 1996-12-18 Peter Lisec Dispositif pour la fabrication de cadres d'espacement pour vitres isolantes à partir de profilés d'écartement creux
AT406236B (de) * 1995-10-31 2000-03-27 Lisec Peter Vorrichtung zum biegen oder krümmen von hohlprofilleisten
DE10137766A1 (de) * 2001-08-03 2003-02-27 Lenhardt Maschinenbau Vorrichtung zum Biegen von Hohlprofilstäben
DE10236407B4 (de) * 2002-08-02 2007-09-27 Lenhardt Maschinenbau Gmbh Vorrichtung zum Biegen von Hohlprofilstäben
CA2924182C (fr) * 2015-04-02 2022-12-06 Lombarda Macchine S.A.S. Di G.B. Lattuada & C. Methode de courbure automatique d'elements espaceurs en vue d'isoler les panneaux de verre a double vitrage et machine servant a mener la methode
CN111531858A (zh) * 2020-05-12 2020-08-14 周立 一种汽车玻璃卡条弯曲装置

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Publication number Priority date Publication date Assignee Title
US3885412A (en) * 1973-11-21 1975-05-27 Lawrence T Vance Method of fabricating curved tubing and product thereof
AT360311B (de) * 1978-09-26 1980-01-12 Seraphin Puempel & Soehne Kg Biegeeinrichtung zum anfertigen eines distanz- halterahmens fuer isolierglasscheiben
CH647428A5 (en) * 1980-08-15 1985-01-31 Haeusler Ag Chr Process for bending a sectional bar, apparatus for supporting portions of a sectional bar relative to one another and multi-roll bending machine
CH660398A5 (de) * 1982-01-21 1987-04-15 Peter Lisec Abstandhalterrahmen fuer isolierglasscheiben sowie verfahren zur herstellung desselben und vorrichtung zur durchfuehrung des verfahrens.
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
AT389662B (de) * 1985-02-25 1990-01-10 Lisec Peter Glastech Ind Vorrichtung zum stumpfschweissen
AT401627B (de) * 1987-03-09 1996-10-25 Lisec Peter Vorrichtung zum herstellen von abstandhalterrahmen für isolierglasscheiben
DE3740921A1 (de) * 1987-12-03 1989-06-15 Bayer Isolierglasfab Kg Vorrichtung zur herstellung einer biegung an einem hohlen rechteck-profil
DE3807529A1 (de) † 1988-03-08 1989-09-21 Bayer Isolierglasfab Kg Verfahren und vorrichtung zum biegen von hohlen abstandhalterprofilen

Also Published As

Publication number Publication date
DE59101137D1 (de) 1994-04-14
EP0459971A1 (fr) 1991-12-04
JPH0768322A (ja) 1995-03-14
NO911925L (no) 1991-11-22
EP0459971B2 (fr) 2001-12-12
ATE102513T1 (de) 1994-03-15
NO179493C (no) 1996-10-16
ES2051110T5 (es) 2002-07-16
ES2051110T3 (es) 1994-06-01
DE4116521A1 (de) 1991-11-28
DE4116521C2 (de) 1998-07-23
DK0459971T3 (da) 1994-04-05
NO911925D0 (no) 1991-05-16
NO179493B (no) 1996-07-08

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