EP0318748B1 - Dispositif de pliage d'un profil creux, en particulier un cadre de barres d'écartement pour vitres isolantes - Google Patents

Dispositif de pliage d'un profil creux, en particulier un cadre de barres d'écartement pour vitres isolantes Download PDF

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Publication number
EP0318748B1
EP0318748B1 EP88118909A EP88118909A EP0318748B1 EP 0318748 B1 EP0318748 B1 EP 0318748B1 EP 88118909 A EP88118909 A EP 88118909A EP 88118909 A EP88118909 A EP 88118909A EP 0318748 B1 EP0318748 B1 EP 0318748B1
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EP
European Patent Office
Prior art keywords
profile
abutment
bend
bending
area
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
EP88118909A
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German (de)
English (en)
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EP0318748B2 (fr
EP0318748A3 (en
EP0318748A2 (fr
Inventor
Franz Bayer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bayer Isolierglas und Maschinentechnik GmbH
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Bayer Isolierglas und Maschinentechnik GmbH
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Application filed by Bayer Isolierglas und Maschinentechnik GmbH filed Critical Bayer Isolierglas und Maschinentechnik GmbH
Priority to AT88118909T priority Critical patent/ATE80071T1/de
Publication of EP0318748A2 publication Critical patent/EP0318748A2/fr
Publication of EP0318748A3 publication Critical patent/EP0318748A3/de
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Publication of EP0318748B1 publication Critical patent/EP0318748B1/fr
Publication of EP0318748B2 publication Critical patent/EP0318748B2/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
    • 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
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/51—Plural diverse manufacturing apparatus including means for metal shaping or assembling
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/51—Plural diverse manufacturing apparatus including means for metal shaping or assembling
    • Y10T29/5199—Work on tubes

Definitions

  • the invention relates to a device for bending a hollow profile - preferably for producing a hollow spacer frame for insulating glass panes, in particular filled with desiccant - according to the preamble of patent claim 1.
  • Such a device is known from EP-A-121873 and DE-A-33 12 764 and has proven itself in particular for profiles with sufficient wall thickness.
  • the outside of the bend can be elongated and stretched by the tool which can be pressed there, preferably a roller or roller, this roller being able to be moved back and forth at high frequency under certain circumstances.
  • This combination of features and measures means that the two webs delimiting the inner and outer corners of the curved profile are clamped during the critical phase of the bend between the abutment and the tool on the one hand and between the side walls of the profile on the other hand, because of the mentioned Dimensions the tool that acts on the outside of the profile, while impressing the outer profile wall that it applies, immerse between the side webs of the profile and without cracking or warping this outer wall can deform into the interior of the profile, where a correspondingly shorter bending path is given, part of this outer wall and / or the side wall is turned inwards relative to the standing side wall and this can be approximated more or less.
  • the abutment and the web acted upon by it can also be deformed somewhat between the side walls of the profile.
  • a controlled bending of a very thin-walled profile can be carried out without the webs or walls being able to move in an undesired direction, but also rolling or stretches are not required or only necessary to a limited extent.
  • This mutual support of the webs to be deformed in the bend region between the side walls can be achieved particularly simply in that the webs acted upon by abutments and tools are supported indirectly or directly against one another during their bending on their mutually facing surfaces, so that these webs during the critical phase the bend between the abutment and the tool and clamped against each other.
  • a desiccant interlayer which is preferably reduced in its extent, can be provided between these mutually facing surfaces if the hollow profile is at least partially filled with desiccant from the outset.
  • the pressure roller serving as a tool can be bevelled circumferentially on its side surfaces near its circumference, which acts as a working surface, and the greater width of the pressure roller can be equal to or less than the inside clear distance of the side walls of the profile, while the narrower area of the pressure roller is approximately the same in width can correspond to a web area lying on the profile, from each of which inclined web areas fall towards the side walls.
  • Such an embodiment of the device is particularly suitable for bending hollow profiles with a cross section that is at least approximately trapezoidal in the outer region.
  • the sloping side wall areas then do not have to be acted upon directly by the working surface of the pressure roller in order to be able to be pressed in gradually until the outer wall area is touched on the inner web of the profile which is subjected to the abutment.
  • the bevels on the side surfaces of the bending or pressure roller can have a radial width which is equal to or greater than the immersion depth of the bending roller when bending and pressing in the outer web in the direction of the abutment.
  • These bevels on the side surfaces of the tool have the advantage that an overly sharp bend of the outer web relative to the side webs or side walls is avoided because the inwardly bent edge web area can remain somewhat oblique with respect to the outer web.
  • the abutment located on the inside of the bend is a shaped piece, the outer contour of which corresponds to the inner contour of the inner bend to be produced, and which at least at times during the bending compared to the two inner sides which are at an angle to one another after the bending, or the frame legs are in the direction of the outer side of the bend and the profile protrudes so that the inside of the bend receives an indentation.
  • the inside of the bend practically accommodates the outside pressed in from the outside during the bending process, so that the two webs can touch, support and guide one another at least temporarily during the bending, especially during the most important and critical phase.
  • the abutment or the fitting serving as an abutment can be adapted to adapt to different profiles, web thicknesses, web shapes or the like. be interchangeable.
  • One way of optimizing the bending process and the deformation of the inner web in particular can be that the abutment, particularly controlled, can be moved or displaced deeper into the bend than it is arranged in its starting position during the bending process.
  • the increasing bend is accompanied by a greater indentation on the inside of the bend.
  • claims 11, 12, 14, 16 and 17 relate in particular to a solution , in which the abutment can be pivoted proportionally to the bending process, so that its outside pulls the inside of the profile to a certain extent and, particularly in the exemplary embodiments in which the abutment has a projection which increases in the pivoting direction, is practically in the inside of the profile to be bent and in the inner bend "rolls in" more and more.
  • some of the claims mentioned also relate to solutions in which the abutment is pressed deeper and deeper into the inner bend approximately in proportion to the bending progress without being pivoted.
  • the claims 18 to 20 relate above all to the hold-down or hold-downs, which hold the side surfaces of the hollow profile to the correct extent during the bending process and avoid warping and deformation in these areas, which could lead to a distortion of the external distance.
  • Claims 21 to 24 relate to configurations which allow the use of the bending device according to the invention and in particular the compression of the inner and outer walls and webs even in the case of profiles filled with desiccant, in that the bending area is at least temporarily freed from drying agent, preferably with the aid of compressed air .
  • a device designated overall by 1 in all exemplary embodiments serves for bending a hollow profile 2, it being indicated above all in FIG. 6 that this can involve the manufacture of a hollow spacer frame filled with desiccant 3 for insulating glass panes.
  • the profile 2 could be bent four times if the frame is to consist of a single piece. The two profile ends could then butt and join together on one long side.
  • a clamping device 4 is provided on the device 1 for detecting the profile area located before the bend. Furthermore, the device 1 has a device 5 for detecting the leg to be bent and an abutment 6 for fixing the inside of the bend or curvature that is created. Furthermore, it is indicated in FIGS. 1, 6 and 7 and in FIGS. 8 shows in more detail that on the outside of the bending point a tool that can be moved under contact pressure relative to the abutment 6 and can be pressed against the outside of the profile, in the exemplary embodiment in the form of at least part of the pressure roller or roller acting on the profile web 7 located on the outside of the bend 8 is provided, which in Figures 1, 6 u. 7 is shown in different positions to illustrate their movement.
  • the clear distance between the tool 8 engaging on the outside of the resulting bend of the profile 2 and the abutment 6 on the inside is, as is particularly clear in FIGS. 3, 5 and 8, at least temporarily at least during the bending process less than the height of the side walls 10 of the profile 2 and also the dimension A oriented transversely to the longitudinal profile of the profile of the effective surface, ie the surface of the abutment 6 coming into contact with the webs or walls 7 and 9 of the profile and the corresponding dimension B of the tool 8 is less than the profile width and thereby also less than the inside clearance of the side walls 10 of the profile 2 the walls and web 7 and 9 are deformed during the bending by the abutment 6 and especially also the tool 8 between the side walls 10 or, in particular, the tool 8 can be immersed between the side walls 10 and the web which is particularly stressed during bending because the external web 7 bring it into an area of a smaller bending radius, where correspondingly lower tensile forces occur.
  • 3 illustrates that the dimension A of the abutment 6 oriented transversely to the longitudinal profile of the profile and the corresponding dimension B of the tool 8 is less than the profile width and even less than the inside clearance of the side walls 10 of the profile 2. 3 even shows that the dimension A of the abutment 6 oriented transversely to the longitudinal profile of the profile and the corresponding dimension B of the tool 8 is even less than the inside clearance of the side walls 10 of the profile 2 by more than two wall thicknesses of the profile webs 10.
  • the pressure roller 8 taking part of the outer wall 7 with it, can dip between the side walls 10 into the profile and deform the outer wall 7 against the inner wall 9, which in turn follows in a manner yet to be described is deformed on the inside so that both walls 7 and 9 according to Fig. 2 and also according to Fig. 5 come to lie against each other and guide and support each other and, above all, prevent unwanted and uncontrolled distortions and folds.
  • Fig. 5 illustrates how the two walls 7 and 9 are gradually brought closer to each other until they actually touch each other in the bending area.
  • the narrower bending roller 8 and the hold-down devices 11 and 12 to be described bring about the targeted and precise deformation of the individual webs 7 and 9, so that they are partially almost parallel to the outer walls 10 within the bend run.
  • This not only allows the desired tight bend, but also leads to a correspondingly stiff and stable shape in the bending area despite the previous deformations.
  • very thin-walled hollow profiles with narrow bends with the smallest possible radius of curvature on the inside can be produced with the device 1 according to the invention.
  • the pressure roller 8 is bevelled all around on its side surfaces 14 near its circumference, which acts as a working surface 13.
  • This inclination is designated by 15 in FIG. 3 clearly shows that the greater width of the pressure roller 8 is equal to or less than the inside clearance of the side walls 10 of the profile 2 and that the narrower area 13 of the pressure roller 8 is approximately the width of an outside of the profile 2
  • the bevels 15 on the side surfaces 14 of the bending or pressure roller 8 have a radial width which is the same or - in the exemplary embodiment - greater than the immersion depth of the bending roller 8 when bending and pressing in the outer web 7 towards the abutment 6.
  • a piece of the bevel 15 protrudes from the profile 2 after the roller 8 has been pressed into it.
  • the abutment 6, which has already been mentioned several times, is important for a rapid and problem-free course of the deformation during bending.
  • This is a shaped piece which is somewhat modified in the various exemplary embodiments, the outer contour of which corresponds to the inner contour of the inner bend to be produced, as is illustrated, for example, in FIG. 5 .
  • the abutment 6 protrudes at least temporarily during the bend in relation to the two inner sides or webs of the frame legs which are at an angle to one another after the bend, in the direction towards the outer side of the bend and the profile, so that the inner side of the bend thus receives an indentation, as in Fig.1 and especially in Fig.5, but also in Fig. 3 is clear.
  • the abutment 6 or the fitting serving as an abutment can be adapted to adapt to different profiles, web thicknesses, web shapes or the like. be interchangeable.
  • the bending device 1 can thus be used above all for profiles of different dimensions. If necessary, it is also expedient to make the pressure roller 8 interchangeable.
  • the abutment 6 can be moved or displaced deeper and deeper into the bend in the manner to be described during the bending process, possibly controlled.
  • the inner wall 9 and outer wall 7 of the profile actually touch.
  • this is achieved so early that, above all, the increasingly increasing bend can then take place when the walls 7 and 9 abut one another.
  • the pivotable and / or displaceable abutment 6 is arranged immediately adjacent in the feed direction behind the clamping device 4 for detecting the profile area located before the bend. It is therefore separate from this tensioning device 4, so it can perform movements to optimize the bending process independently of these.
  • the abutment 6 has a continuation 16 as a stop for the leg to be bent behind the bend at its pressure region which bears against the inside of the bend which arises during the bending.
  • the abutment 6, with its continuation 16 serving as a stop can be pivoted together during the bending process with a bending stop 17 acting on the frame leg to be bent on the outside, the profile being clamped between the abutment continuation 16 and this bending stop 17, so that these parts practically form the device 5 for detecting the leg to be bent.
  • Fig. 7 are this device 5 and the abutment 6 with its continuation independently.
  • Figures 1.4 and 5 show a particularly expedient embodiment, in which the abutment 6 has a protrusion 6a projecting laterally and in particular eccentrically relative to its extension 16 for pressing into the inside of the bend which is formed, the dimension of which in the direction of its pivoting in the The sense increases that by pivoting the continuation 16 and the abutment 6 according to the arrow Pf 1 in FIG. 4, the projection 6a becomes increasingly deeper into the inside of the bend, as can be clearly seen when comparing FIGS. 4 and 5.
  • dimension lines L are shown in the area of the projection 6a, starting from a central point M in each case to the periphery of the projection 6a, in order to increase the eccentricity of the projection 6a, and thereby, due to their length, which increases contrary to the arrow Pf 1 caused gradually greater penetration of the abutment 6 to illustrate the profile 2.
  • the arrow Pf 1 is also shown in Fig. 1.
  • the outside of the projection 6a is pivoted and the wall 9 pulls as it were. Modified solutions with regard to the gradual deeper entry of the abutment 6 into the inside of the bend are shown in FIGS.
  • the pivoting movement of the pivotable abutment 6 with its continuation 16 which acts with its surface on the inside of the bend in the sense of the profile feed during the pivoting, at least one displacement movement directed in the direction of orientation of the continuation 16 according to the double arrow Pf 2, in the exemplary embodiment, such a displacement movement shortly after the beginning of the bend and a further displacement movement of this type shortly before completion of the bend is superimposed.
  • the abutment 6 and its continuation 16 has a projection 19 engaging in a control curve 18, the control curve 18 being oriented substantially in accordance with the pivoting of this projection 19 when the abutment 6 is pivoted and Deflections 18a for the superimposed displacement movements.
  • hold-down device 11 or a support 12 and a hold-down device 11 are provided for the side walls 10 of the profile 2 in the bending area, the distance between which can be adjusted to the width of the profile 2 and the subsequent clear distance between two glass panes. Evasive movements of the side walls 10 are thus avoided during the bending process, as is particularly illustrated by FIG. 3. At least one of these hold-downs 11, which acts on both sides of the profile 2 on its side walls 10, can be delivered and moved away again from the area of the profile 2, which not only facilitates the insertion and removal of the profile 2 or the curved frame, but also the adaptation to different profile widths facilitated.
  • an ejector or the like directed by the abutment 6 against the inside of the bend in the region of the bending tool 8 in a manner not shown in detail. be provided, which makes it easier to remove the deformed profile after bending. If necessary, even the abutment 6 could serve as an ejector, especially in the solution according to FIG. 7, by a further displacement in the direction of the arrow Pf 3.
  • the device 1 can be used, for example, to bend hollow spacer profiles filled with desiccant to form spacer frames for insulating glass panes.
  • This can of course be done in a number of ways.
  • FIG. 6 shows a solution for such a case in which the hollow profile 2 is perforated on the inside of the bend that is created, so that the desiccant later also becomes effective against the space between the panes.
  • this compressed air nozzle 20 which serves to displace drying agent 3 from the bending area, is arranged near the abutment 6 and the clamping device 4 arranged on the inside. In this case, it even passes through this clamping device 4 and opens directly in front of the bending area and in front of the abutment 6, so that the air can blow free the bending area.
  • the air nozzle 10 is directed obliquely against the inside of the area of the profile 2 located before the bend and includes an acute angle with the leg remaining before the bend and the direction of advance of the profile 2 when it is inserted into the bending device 1 .
  • a larger part of the desiccant 3 will be blown forward in the direction of extension of the profile 2, while a part will also be blown back by the excess pressure which arises.
  • Fig. 6 it can be clearly seen that the bending area itself is free of the desiccant, while this has accumulated somewhat on both sides of this desiccant-free area because it has been displaced by the compressed air. In this way, the bend can be caused particularly by continued air injection are performed without the desiccant 3 hindering this, so that the walls 7 and 9 can also come into contact despite the desiccant 3 according to FIG.
  • Another possibility is to first bend an empty profile 2 and then fill in desiccant subsequently, in particular before the profile is finally closed, or even before the last bend is carried out, although it is not absolutely necessary that all the legs of the frame are then complete are filled with desiccant.
  • bending roller 8 can be interchangeable to adapt to different and, above all, different widths 2.

Claims (23)

1. Appareil (1) pour plier un profil creux (2) - de préférence en vue de la fabrication d'un cadre d'écartement creux, rempli en particulier de desséchant (3), pour vitres isolantes -, comprenant un dispositif de serrage (4) situé à peu près dans la direction d'amenée du profit (2) et destiné à saisir la partie du profit se trouvant devant le pli ou courbure formé au pliage, un mécanisme (5) pour saisir la partie du profil à rabattre ou à changer d'orientation, ainsi qu'un contre-appui (6) pour fixer le côté intérieur du pli ou de la courbure formé et un outil (8) déplaçable sur le coté extérieur du point de pliage sous une pression d'application, par rapport au contre-appui (6) et du profil (2), outil qui peut être pressé contre le côté extérieur du profit et a notamment la forme d'un cylindre ou d'un galet presseur (8) ou analogue, agissant sur au moins une partie de la paroi (7) du profil située sur le côté extérieur de la courbure, appareil dans lequel la distance libre entre l'outil (8) attaquant le côté extérieur de la courbure formée du profil (2) et le contre-appui (6) situé en regard de lui sur le côté intérieur, est inférieure, tout au moins temporairement pendant au moins l'opération de pliage, à la hauteur des parois latérales (10) du profil (2), caractérisé en ce qu'au moins temporairement pendant au moins l'opération de pliage, la distance libre entre l'outil (8) et le contre-appui (6) est au moins égale à l'épaisseur totale des deux parois (7, 9) du profil creux sollicitées par eux et disposées parallèlement à eux et l'une par rapport à l'autre, ou égale à l'épaisseur totale de ces deux parois (7, 9) plus une couche intermédiaire de desséchant, dont l'étendue est de préférence réduite par rapport à la hauteur totale du profil, et que la dimension (A), orientée transversalement à l'étendue longitudinale du profil, de la face utile du contre-appui (6) et/ou de l'outil (8) est inférieure d'au moins deux épaisseurs des parois (10) du profil à la dimension intérieure libre des parois latérales (10) du profil (2).
2. Appareil selon la revendication 1, caractérisé en ce que les parois (7, 9) sur lesquelles agissent le contre-appui (6) et l'outil (8), sont mutuellement appuyées par leurs faces dirigées l'une vers l'autre, indirectement ou directement, pendant le pliage.
3. Appareil selon la revendication 1 ou 2, caractérisé en ce que le galet presseur (8) est biseauté (15) de façon continue tout autour à ses faces latérales (14), près de sa surface périphérique agissant en tant que surface de travail (13), que la plus grande largeur du galet presseur (8) est supérieure, égale ou inférieure à la distance intérieure libre des parois latérales (10) du profil (2) et que la partie plus étroite (13) du galet presseur (8) possède une largeur correspondant à peu près à la largeur d'une portion de paroi (7a) située à l'extérieur du profil (2) et dont des portions de paroi obliques (7b) descendent vers les parois latérales (10).
4. Appareil selon une des revendications 1 à 3, caractérisé en ce que les biseaux (15) sur les faces latérales (14) du galet de pliage ou galet presseur (8) ont une largeur radiale qui est égale ou supérieure à la profondeur de pénétration du galet (8) lors du pliage et de l'enfoncement de la paroi extérieure (7) en direction du contre-appui (6).
5. Appareil selon une des revendications 1 à 4, caractérisé en ce que le contre-appui (6), situé sur le côté intérieur de la courbure, est une pièce façonnée dont le contour extérieur correspond au contour intérieur de la courbure intérieure à réaliser et qui fait saillie, au moins temporairement, pendant le pliage, par rapport aux deux côtés intérieurs ou aux deux parois intérieures des parties du cadre formant un angle entre eux après le pliage, en direction du côté extérieur de la courbure et du profil, de manière que le côté intérieur de la courbure soit pourvu d'un congé.
6. Appareil selon une des revendications 1 à 5, caractérisé en ce que le contre-appui (6), ou la pièce façonnée servant de contre-appui, est interchangeable en vue de l'adaptation à différents profils, épaisseurs de paroi, formes de paroi ou analogues.
7. Appareil selon une des revendications 1 à 6, caractérisé en ce que le contre-appui (6) peut être mû ou déplacé en translation, pendant l'opération de pliage, notamment de façon commandée, dans le sens de son engagement plus profond dans la courbure.
8. Appareil selon une des revendications 1 à 7, caractérisé en ce que le contre-appui (6), susceptible d'être animé d'un pivotement et/ou d'un mouvement de translation, est disposé à proximité immédiate, dans la direction d'avancement, du dispositif de serrage (4) destiné à saisir la partie du profil se trouvant devant la courbure.
9. Appareil selon une des revendications 1 à 8, caractérisé en ce que le contre-appui (6) possède un prolongement (16) raccordé à sa zone de pression appliquée pendant le pliage contre le côté intérieur de la courbure formée, prolongement qui sert de butée pour la partie du profil à rabattre ou à changer d'orientation.
10. Appareil selon une des revendications 1 à 9, caractérisé en ce que le contre-appui (6) et son prolongement (16), servant de butée, sont susceptibles d'être animés d'un mouvement de pivotement, lors de l'opération de pliage, ensemble avec une butée de pliage (17) agissant sur le côté extérieur de la branche ou partie du cadre à rabattre, le profil étant de préférence serré entre le prolongement (16) du contre-appui et cette butée de pliage (17).
11. Appareil selon une des revendications 1 à 10, caractérisé en ce que le contre-appui (6) s'étend ou peut être mû ou déplacé en translation pour s'étendre à peu près jusque dans la zone de la fibre neutre du profil (2) à plier.
12. Appareil selon une des revendications 1 à 11, caractérisé en ce que le contre-appui (6) possède une saillie (6a), dépassant de préférence latéralement et en particulier excentriquement par rapport à son prolongement (16), qui est destinée à être enfoncée dans le côté intérieur formé de la courbure et dont la dimension augmente dans le sens de son pivotement, de manière que, par suite du pivotement du prolongement (16) et du contre-appui (6), la saillie (6a) pénètre de plus en plus dans le côté intérieur de la courbure.
13. Appareil selon une des revendications 1 à 12, caractérisé en ce que le contre-appui (6) et un prolongement (16) prévu sur lui, sont disposés sous un angle aigu par rapport au profil (2) arrivant, non encore plié, et sont montés de façon à pouvoir être déplaçables en translation suivant leur direction d'orientation.
14. Appareil selon une des revendications 1 à 13, caractérisé en ce que, au mouvement de pivotement du contre-appui (6) pivotant, agissant par sa surface sur le côté intérieur de la courbure dans le sens de l'avancement du profil pendant le pivotement, est superposé au moins un mouvement de translation dirigé suivant l'orientation du prolongement (16) du contre-appui, ou sont superposés, de préférence, un tel mouvement de translation produit peu après le début du pliage et un autre mouvement de translation de ce type produit peu avant l'achèvement du pliage.
15. Appareil selon une des revendications 1 à 14, caractérisé en ce que le contre-appui (6) et/ou son prolongement (16) possède un tenon (19) ou un élément analogue pénétrant dans une fente de guidage ou de commande (18) ou un dispositif semblable, la fente de commande (18) étant orientée essentiellement suivant le trajet de pivotement de ce tenon (19) lors du pivotement du contre-appui (6) et comportant des déviations (18) pour produire les mouvements de translation superposés.
16. Appareil selon une des revendications 1 à 15, caractérisé en ce que des éléments de maintien (11) ou un support (12) et un élément de maintien (11), ou des éléments de guidage semblables pour les parois latérales (10) du profil (2) sont prévus dans la zone de pliage, éléments dont l'espacement est ajustable à la largeur du profil (2) et à la distance intérieure libre formée ultérieurement entre deux vitres.
17. Appareil selon une des revendications 1 à 16, caractérisé en ce que l'un au moins des éléments de maintien (11) ou analogues, disposés des deux côtés du profil (2) et attaquant les parois latérales (10) de ce profil, peut être serré contre le profil et peut être écarté de nouveau hors de la zone du profil (2).
18. Appareil selon une des revendications 1 à 17, caractérisé en ce qu'un éjecteur ou un dispositif semblable, dirigé par le contre-appui (6) vers le côté intérieur de la courbure, est prévu dans la zone de l'outil de pliage (8).
19. Appareil pour plier un profil d'entretoisement creux, rempli de desséchant, pour vitres isolantes, selon une des revendications 1 à 18, caractérisé en ce que, pendant l'opération de pliage, l'intérieur du profil (2) est complètement ou au moins partiellement exempt de desséchant (3) dans la zone de pliage.
20. Appareil pour plier un profil creux rempli de deséchant et perforé sur le côté intérieur de la courbure formée, selon une des revendications 1 à 19, caractérisé en ce que, dans la zone du côté intérieur de la courbure, on a prévu, sur l'appareil de pliage (1), un dispositif pour au moins temporairement refouler ou éliminer le desséchant (3) de la zone du profil à plier, en particulier une buse à air comprimé (20) dirigée vers la perforation du profil (2).
21. Appareil selon une des revendications 1 à 20, caractérisé en ce que la buse à air comprimé (20), servant à refouler le desséchant (3) hors de la zone de pliage, est placée près du contre-appui (6) et/ou du dispositif de serrage (4) prévu sur le côté intérieur, de préférence de manière qu'elle traverse ce dispositif de serrage (4) pour déboucher directement devant la zone de pliage du profil.
22. Appareil selon une des revendications 1 à 21, caractérisé en ce que la buse à air (20) est dirigée obliquement contre le côté intérieur de la partie du profil (2) se trouvant devant la courbure et renferme un angle aigu avec cette partie du profil et la direction d'avancement du profil (2) lors de l'introduction dans l'appareil de pliage (1).
23. Appareil selon une des revendications précédentes, caractérisé en ce que le galet de pliage (8) est interchangeable en vue de l'adaptation à différents profils (2) et, surtout, à des profils (2) de différentes largeurs.
EP88118909A 1987-12-03 1988-11-12 Dispositif de pliage d'un profil creux, en particulier un cadre de barres d'écartement pour vitres isolantes Expired - Lifetime EP0318748B2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88118909T ATE80071T1 (de) 1987-12-03 1988-11-12 Vorrichtung zum biegen eines hohlprofiles insbesondere eines abstandhalter-rahmens fuer isolierglasscheiben.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3740921 1987-12-03
DE19873740921 DE3740921A1 (de) 1987-12-03 1987-12-03 Vorrichtung zur herstellung einer biegung an einem hohlen rechteck-profil

Publications (4)

Publication Number Publication Date
EP0318748A2 EP0318748A2 (fr) 1989-06-07
EP0318748A3 EP0318748A3 (en) 1990-06-13
EP0318748B1 true EP0318748B1 (fr) 1992-09-02
EP0318748B2 EP0318748B2 (fr) 1997-12-17

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EP88118909A Expired - Lifetime EP0318748B2 (fr) 1987-12-03 1988-11-12 Dispositif de pliage d'un profil creux, en particulier un cadre de barres d'écartement pour vitres isolantes

Country Status (5)

Country Link
US (1) US4945619A (fr)
EP (1) EP0318748B2 (fr)
AT (1) ATE80071T1 (fr)
DE (2) DE3740921A1 (fr)
ES (1) ES2035221T5 (fr)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0356814A2 (fr) * 1988-08-30 1990-03-07 Bayer Ag Procédé pour la préparation des polyéther-polyols fondés sur des di- et/ou polyamines aromatiques et leur utilisation pour des materiaux synthétiques en polyuréthane et polyisocyanate
EP0459971A1 (fr) * 1990-05-21 1991-12-04 Peter Lisec Procédé et dispositif pour obtenir des parties pliées dans les profilés d'écartement creux
DE4116268A1 (de) * 1990-05-21 1991-12-12 Peter Lisec Vorrichtung zum biegen von hohlprofilleisten
EP0483044A2 (fr) * 1990-10-26 1992-04-29 Franz Xaver Bayer Isolierglasfabrik KG Machine à cintrer
US5136871A (en) * 1990-06-07 1992-08-11 Peter Lisec Process and apparatus for bending hollow profile strips into spacer frames for insulating glass panes
US5243844A (en) * 1990-05-21 1993-09-14 Peter Lisec Process for producing curved sections in hollow profile strips
EP0582064A1 (fr) * 1992-08-05 1994-02-09 Franz Xaver Bayer Isolierglasfabrik KG Dispositif pour plier des profilés creux
EP0894553A2 (fr) * 1997-08-02 1999-02-03 Franz Xaver Bayer Isolierglasfabrik Kg Appareil pour plier un profil creux avec un élément de serrage
EP0983809A2 (fr) 1998-08-29 2000-03-08 Bayer Isolierglas- und Maschinentechnik GmbH Méthode et dispositif pour le cintrage d' un profilé creux pour la fabrication d' un cadre intercalaire pour vitrage isolant
US6619098B2 (en) 2001-08-28 2003-09-16 Peter Lisec Process and device for bending of hollow profile strips into spacer frames for insulating glass panes

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DE3942809A1 (de) * 1989-12-23 1991-06-27 Bayer Isolierglasfab Kg Verfahren und vorrichtung zum herstellen eines abstandhaltenden rahmens insbesondere fuer isolierglasscheiben
DE3942808A1 (de) * 1989-12-23 1991-06-27 Bayer Isolierglasfab Kg Verfahren und vorrichtung zum herstellen eines abstandhalter-rahmens
DE4104997A1 (de) * 1990-02-21 1991-08-29 Bernhard Kreye Verfahren und vorrichtung zum biegen von profilierten hohlstaeben, insbesondere zum biegen von hohlprofilen fuer fenster und tuerrahmen
AT397054B (de) * 1990-05-21 1994-01-25 Lisec Peter Vorrichtung zum biegen von hohlprofilleisten
AT405912B (de) * 1990-10-02 1999-12-27 Lisec Peter Verfahren und vorrichtung zum krümmen von hohlprofilleisten
AT397055B (de) * 1990-06-07 1994-01-25 Lisec Peter Verfahren und vorrichtung zum biegen von hohlprofilleisten zu abstandhalterrahmen für isolierglasscheiben
DK9192A (da) * 1992-01-24 1993-07-25 Skovgaard & Co As Fremgangsmaade samt apparat til bukning af tyndvaegget, hult afstandsprofil
IT1266114B1 (it) * 1993-08-02 1996-12-20 For El Base Di Vianello Fortun Dispositivo per il riempimento di telai distanziatori per vetro-camera con materiale igroscopico
FR2774625B1 (fr) 1998-02-10 2000-03-10 Seva Procede de pliage de profiles comportant un corps creux et une feuille de revetement,et profile plie par ce procede
FR2774624B1 (fr) * 1998-02-10 2000-03-10 Seva Procede de pliage de profiles comportant un corps creux et une feuille de revetement, et profile plie par ce procede
DE19839735B4 (de) * 1998-09-01 2005-03-03 Franz Xaver Bayer Isolierglasfabrik Kg Vorrichtung zum Biegen eines abstandhaltenden Innenrahmens für eine Isolierglasscheibe
DE19956046B4 (de) * 1999-11-22 2004-12-30 Bayer Isolierglas- Und Maschinentechnik Gmbh Verfahren und Vorrichtung zur Herstellung eines Abstandhalterrahmens für Isolierglasscheiben
US6601291B2 (en) * 2001-06-14 2003-08-05 Georgia-Pacific Resins, Inc. Apparatus and method of producing a core board product
DE10138345B4 (de) * 2001-08-03 2008-12-04 Lenhardt Maschinenbau Gmbh Vorrichtung zum Biegen von Hohlprofilstäben
DE10137766A1 (de) * 2001-08-03 2003-02-27 Lenhardt Maschinenbau Vorrichtung zum Biegen von Hohlprofilstäben
DE10236373B4 (de) * 2002-08-02 2007-10-11 Takata Corp. Verfahren zum Biegen eines Füllrohres für ein Airbagmodul und Vorrichtung zur Durchführung dieses Verfahrens
DE102004060805A1 (de) * 2004-11-05 2006-05-11 Lenhardt Maschinenbau Gmbh Verfahren und Vorrichtung zum Biegen von Hohlprofilstäben, insbesondere für Abstandhalterrahmen von Isolierglasscheiben
EP2288777A2 (fr) * 2008-04-11 2011-03-02 Plus Inventia AG Procédé de production d'un angle d'un intercalaire en forme de cadre pour vitrages isolants et intercalaires et vitrages isolants produits par ce procédé
JP5233682B2 (ja) * 2009-01-08 2013-07-10 アイシン・エィ・ダブリュ株式会社 曲げ加工機
CN102248041A (zh) * 2010-05-17 2011-11-23 赵士平 中空玻璃铝隔条折弯机中的定位装置
US10183363B2 (en) 2015-08-04 2019-01-22 Cardinal Ig Company Spacer formation cell
CA3012935C (fr) * 2017-03-10 2020-03-24 Allmetal, Inc. Construction d'espace de verre isolant

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GB624169A (en) * 1944-11-21 1949-05-30 Sncase Improvements in machines for bending angle and other metal rods, bars or the like
US3553990A (en) * 1968-04-23 1971-01-12 Pines Engineering Co Inc Tube bender pressure die interference control
CA1134125A (fr) * 1978-06-14 1982-10-26 Theo Janssens Panneaux creux, et dispositif et methode de fabrication connexes
CH660398A5 (de) * 1982-01-21 1987-04-15 Peter Lisec Abstandhalterrahmen fuer isolierglasscheiben sowie verfahren zur herstellung desselben und vorrichtung zur durchfuehrung des verfahrens.
CA1246978A (fr) * 1983-04-09 1988-12-20 Franz Bayer Methode et dispositif de fabrication d'entre-deux pour vitrages doubles, triples et leurs analogues
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
DE3346671C1 (de) * 1983-12-23 1985-07-04 Karl 7531 Neuhausen Lenhardt Verfahren zum Formen der Ecken von Abstandhalterrahmen fuer randverklebte Isolierglasscheiben
DE3740922A1 (de) * 1987-12-03 1989-06-22 Bayer Isolierglasfab Kg Verfahren und vorrichtung zur herstellung eines abstandhalter-rahmens

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0356814A2 (fr) * 1988-08-30 1990-03-07 Bayer Ag Procédé pour la préparation des polyéther-polyols fondés sur des di- et/ou polyamines aromatiques et leur utilisation pour des materiaux synthétiques en polyuréthane et polyisocyanate
EP0356814A3 (fr) * 1988-08-30 1991-05-15 Bayer Ag Procédé pour la préparation des polyéther-polyols fondés sur des di- et/ou polyamines aromatiques et leur utilisation pour des materiaux synthétiques en polyuréthane et polyisocyanate
US5117669A (en) * 1990-05-21 1992-06-02 Peter Lisec Apparatus for bending hollow profile strips
DE4116268A1 (de) * 1990-05-21 1991-12-12 Peter Lisec Vorrichtung zum biegen von hohlprofilleisten
EP0462961A1 (fr) * 1990-05-21 1991-12-27 Peter Lisec Dispositif pour plier des profilés d'écartement creux
EP0459971A1 (fr) * 1990-05-21 1991-12-04 Peter Lisec Procédé et dispositif pour obtenir des parties pliées dans les profilés d'écartement creux
US5243844A (en) * 1990-05-21 1993-09-14 Peter Lisec Process for producing curved sections in hollow profile strips
US5136871A (en) * 1990-06-07 1992-08-11 Peter Lisec Process and apparatus for bending hollow profile strips into spacer frames for insulating glass panes
EP0483044A2 (fr) * 1990-10-26 1992-04-29 Franz Xaver Bayer Isolierglasfabrik KG Machine à cintrer
EP0483044A3 (en) * 1990-10-26 1992-07-08 Rolltech A/S A bending machine
EP0582064A1 (fr) * 1992-08-05 1994-02-09 Franz Xaver Bayer Isolierglasfabrik KG Dispositif pour plier des profilés creux
EP0894553A2 (fr) * 1997-08-02 1999-02-03 Franz Xaver Bayer Isolierglasfabrik Kg Appareil pour plier un profil creux avec un élément de serrage
US6023956A (en) * 1997-08-02 2000-02-15 Franz Xaver Bayer Isolierglasfabrik Kg Device for bending a hollow section with a hold down clamp
EP0983809A2 (fr) 1998-08-29 2000-03-08 Bayer Isolierglas- und Maschinentechnik GmbH Méthode et dispositif pour le cintrage d' un profilé creux pour la fabrication d' un cadre intercalaire pour vitrage isolant
US6619098B2 (en) 2001-08-28 2003-09-16 Peter Lisec Process and device for bending of hollow profile strips into spacer frames for insulating glass panes

Also Published As

Publication number Publication date
EP0318748B2 (fr) 1997-12-17
DE3740921C2 (fr) 1989-09-21
EP0318748A3 (en) 1990-06-13
ES2035221T3 (es) 1993-04-16
ES2035221T5 (es) 1998-04-16
EP0318748A2 (fr) 1989-06-07
DE3740921A1 (de) 1989-06-15
DE3874298D1 (de) 1992-10-08
ATE80071T1 (de) 1992-09-15
US4945619A (en) 1990-08-07

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