EP3495067B1 - Device and method for bending wing metal profiles - Google Patents

Device and method for bending wing metal profiles Download PDF

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Publication number
EP3495067B1
EP3495067B1 EP18207959.0A EP18207959A EP3495067B1 EP 3495067 B1 EP3495067 B1 EP 3495067B1 EP 18207959 A EP18207959 A EP 18207959A EP 3495067 B1 EP3495067 B1 EP 3495067B1
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EP
European Patent Office
Prior art keywords
profiles
profile
shape
module
bending
Prior art date
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EP18207959.0A
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German (de)
French (fr)
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EP3495067A1 (en
Inventor
Maxime BALTHAZAR
Olivier THEIL
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Meca Theil
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Meca Theil
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Publication date
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Priority to PL18207959T priority Critical patent/PL3495067T3/en
Publication of EP3495067A1 publication Critical patent/EP3495067A1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D53/00—Making other particular articles
    • B21D53/74—Making other particular articles frames for openings, e.g. for windows, doors, handbags
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D11/00—Bending not restricted to forms of material mentioned in only one of groups B21D5/00, B21D7/00, B21D9/00; Bending not provided for in groups B21D5/00 - B21D9/00; Twisting
    • B21D11/08—Bending by altering the thickness of part of the cross-section of the work
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D7/00—Bending rods, profiles, or tubes
    • B21D7/02—Bending rods, profiles, or tubes over a stationary forming member; by use of a swinging forming member or abutment
    • B21D7/03—Apparatus with means to keep the profile in shape
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
    • E06B3/66—Units comprising two or more parallel glass or like panes permanently secured together
    • E06B3/673—Assembling the units
    • E06B3/67304—Preparing rigid spacer members before assembly
    • E06B3/67308—Making spacer frames, e.g. by bending or assembling straight sections
    • E06B3/67313—Making spacer frames, e.g. by bending or assembling straight sections by bending

Definitions

  • the present invention relates to an installation as well as a method for bending metal sections of openings.
  • openings By openings is meant the movable parts of windows, French windows and glass doors, whether these openings are located inside or outside a building.
  • Metal profiles generally aluminum, are intended to form frames, for example square or rectangular, in which the glazed parts of the openings are held.
  • the dimensions of the frames both in terms of width, length and thickness are variable, it being understood that there are openings with single, double, triple or quadruple glazing or even more, which has an impact on the thickness of the frame and therefore on the dimensions of the constituent sections thereof.
  • the profiles used are generally configured in U-shaped cross section with a flat bottom.
  • the width of the profile therefore the width of the bottom, depends directly on the thickness of the frame, therefore on the fact that the latter is intended to hold a single, double or other glazing.
  • the openings by virtue of their geometric shapes, are, for example, parallelograms at right angles. To produce such frames, rectilinear sections with a length of up to six meters are bent at right angles, it being understood that the current width of these sections generally varies from eight to thirty millimeters.
  • Folding takes place in several defined areas of the profile which correspond to the dimensions, length or width, of the finished frame.
  • US-A-4,754,632 describes such an installation with a retaining member adapted to abut the ends of the folded rail and form the frame.
  • EP-A-1 285 708 discloses an installation with an articulated folding finger making it possible to achieve a right angle in the frame while preserving the nominal dimensions of the profile.
  • the installation if it makes it possible to achieve various dimensions of the frame, requires a change of tool, in this case the bending punch, when the thickness of the frame to be produced varies, therefore when the width of the profile changes.
  • EP-A-2862644 describes a folding machine according to the preamble of claim 1 comprising a single holding means, namely a fixed folding punch and adjustable spacing folding jaws which ensure the folding of the profile around the punch, according to various thicknesses.
  • a single holding means namely a fixed folding punch and adjustable spacing folding jaws which ensure the folding of the profile around the punch, according to various thicknesses.
  • the invention more particularly intends to respond by proposing an installation for folding metal profiles of openings which can be used to produce frames of different dimensions and thicknesses, with a minimum of parts, without changing components on installation and easy maintenance, adapted to use the different types of existing profiles.
  • the invention relates to an installation for folding metal profiles of openings comprising at least one module for feeding the profiles onto the installation, a module for abutting the profiles, a module for advancing and guiding the profiles in the installation, a profile folding module comprising a means for maintaining the profiles in shape during folding comprising a jaw with variable spacing, said jaw forming a first member with variable retaining spacing in the shape of the profiles and surrounding a second member for maintaining the shape of the profiles during folding, a frame finishing module and a module for receiving the finished frames, characterized in that the folding module comprises at least two second holding members in the shape of the sections and in that the second shape-retaining members are of variable spacing.
  • the bending module comprises elements with variable spacing, namely the jaw and the holding member, which makes it possible to adapt, without changing the tool, the bending module to the various widths of profiles. to be folded, this covering the full extent of the width range of commonly encountered profiles.
  • the invention thus allows optimum use of the installation, while preserving production rates and offering optimum adaptability.
  • the folding installation is able to produce up to at least 140 frames per hour.
  • the figure 1 illustrates, in a simplified manner, an installation for folding metal profiles of openings 1.
  • the profiles known per se, are not illustrated to facilitate reading.
  • Installation 1 is supplied by a storage installation, also called a store, which makes it possible to store profiles in a sufficient number and in various dimensions in order to be able to continuously supply installation 1 during its period of use, typically one day. of work.
  • the capacity of the store is adapted, in particular if the installation is called upon to operate 24 hours a day.
  • the profiles used in the installation 1 are known per se. These are metal profiles, typically in aluminum or stainless steel, with a U-shaped cross section, a length varying from 3 m to 6 m, a width between 6 mm and 30 mm for a height ranging from 5 mm to 10 mm.
  • the installation 1 is able to bend all of the profiles commonly encountered to form opening frames, for example square or rectangular. It will be understood that such an installation 1 is able to bend profiles to produce frames of a geometric shape other than square or rectangular, for example in a triangle.
  • the arrival of the profiles in installation 1 is made from the right of the figure 1 . As a variant, the arrival of the profiles is located on the left of the installation. This supply of the installation 1 with profiles is indicated by the arrow F.
  • a feed module for the profiles ensures a regular supply of profiles into the installation 1, this by adapting to the speed of production of the frames. in the installation 1.
  • the feed module comprises members for driving the profiles in translation.
  • the module is advantageously disposed at the outlet of a profile storage module, not shown. It thus provides a physical link between the installation 1 and an installation for storing the profiles.
  • the feed module is therefore preferably arranged between the installation 1 and an installation for storing the profiles while being removable with respect to the latter.
  • Such a feed module is suitable for supplying the installation 1 with sections while adapting to variations in the folding speed of the installation, and therefore to production rates.
  • a first constituent module of the installation 1, looking at the right part of the figure 1 is a module for joining the profiles 2.
  • Module 2 comprises holding plates 3. Plates 3 are arranged perpendicular to each other, on either side of the path of the profiles when they move in installation 1. Plates 3 hold the profiles in position. when they go through module 2. Training means, not visible to the figure 1 , ensure the translational movement of the profiles in the module 2 so that the profiles follow each other without space between the ends facing the two neighboring profiles. Thus, a continuity is achieved in the movement of the profiles, without downtime in the bending because the butted profiles are, de facto, supported in the installation 1 as if it were a single profile of infinite length.
  • the drive means comprise drive belts, advantageously made of synthetic material.
  • the use of synthetic material belts makes it possible to avoid as much as possible any marking of the profile, in particular when the latter is made of aluminum.
  • the material of the drive belts has a sufficient coefficient of friction to drive the profiles while avoiding any slip phenomenon. For this, the hardness of the belt is lower than that of the profile.
  • the profiles are supported by a feed and guide module 4.
  • the advance and guide module 4 comprises, like the module 2, retaining plates, drive belts, advantageously also made of a material which is not aggressive for the profiles, as well as rollers 5.
  • the rollers 5 allow precise movement. the profiles, by orienting and guiding them, along at least one axis and, in another embodiment not shown, up to three XYZ axes.
  • the retaining plates 3 and the rollers 5 are movable, with a predefined stroke.
  • Of sensors detect the position of the profile when it enters the module 4 and control the necessary movements of the holding plates 3 and rollers 5 to position the profile at the exit of the module 4, before it enters the folding module 6.
  • the folding module 6 is particularly illustrated in figures 3 to 6 . It will therefore be described in more detail later.
  • the profiles pass through a marking module 7.
  • This module 7 not compulsory for carrying out the folding of the profiles according to the invention, makes it possible to print and / or engrave information on the profile. This concerns in particular all the technical information allowing the identification of the finished frame as well as its physical and mechanical characteristics.
  • the marking is carried out by a laser 8, according to a technique known per se.
  • the frames formed pass through a finisher 9.
  • the folded profiles are sawn by a saw 10 constituting the finisher 9.
  • the finished frames are transferred to a receiving table 11.
  • Table 11 is tilted relative to the vertical.
  • the frames are then evacuated to a storage and / or packaging area.
  • Table 11 is particularly visible to figures 1 and 2 .
  • the drive members 12 of the different modules are arranged perpendicular to the direction F of movement of the profiles, under the table 11.
  • looking at the installation 1 only the equipment is visible, as illustrated in figure 1 , the parts of modules in which the profiles move.
  • the other elements that make up the modules of the installation 1 are located under the table 11. All of the modules are carried by a frame 13.
  • the folding module 6 is now described in detail. It comprises a rail 14 for moving the profile. The advance of the profile is generated and controlled by pressure rollers 15. The movement takes place between the parallel cheeks 16, 17 of a clamping jaw.
  • the cheek 16 is mobile, according to the double arrow F2, relative to the cheek 17 which is stationary. In this way, the cheeks 16, 17 are moved away or brought together.
  • the jaw 16, 17 constitutes a means for maintaining the shaped sections during folding.
  • the jaw 16, 17 therefore constitutes a first member with variable spacing for maintaining the shaped sections.
  • the folding module 6 comprises a folding member 18 positioned in the extension of the rail 14.
  • This member 18 is generally in the form of a flattened chute. Thus, it can accommodate different widths of profiles.
  • the member 18 is mounted to pivot around a rotation shaft 19.
  • the member 18 is pivoted in a direction illustrated by the double arrow F1 between a bottom dead center corresponding to an alignment of the member 18 with rail 14, as shown in figures 3 and 4 , and a top dead center in which the member 18 is positioned angularly relative to the rail 14.
  • the member 18 can pivot up to approximately 140 ° relative to the rail 14, depending on the required binding angles.
  • the pivoting movement of the member 18 around the shaft 19 is provided by a jack 20.
  • the latter is located behind the folding plane P materialized by a support plate 21, so as not to hamper the movement of the member 18 and the profile.
  • the movement of the jack 20 is transmitted to the member 18 by a connecting rod 22.
  • the module 6 also comprises at least two shape-retaining members 23 of the profiles.
  • the number of organs 23 is two. In a variant not shown, the number is greater, for example three.
  • the members 23 also constitute the means for maintaining the shaped sections during folding and define a second member with variable spacing for maintaining the shaped sections.
  • the purpose of the members 23 is to keep in shape, from the inside of the profile, the walls and the bottom of the profile during folding, in order to preserve the parallelism of the side walls of the profile and the consistency of the thickness, in avoiding any deformation of the profiling and / or stretching of material during folding. Furthermore, the members 23 define a fulcrum for the folding of the profile by the member 18. De facto, the position of the members 23 also defines the zone where the folding is performed on the profile.
  • the two members 23 are mounted on plates 24.
  • the plates 24, in the form of rectangular plates, have their largest dimensions oriented angularly in the direction of movement of the profiles.
  • the angle a represented at figure 5 between the longitudinal axis A of the plates 24 and the vertical is between 30 ° and 60 °.
  • the organs 23 are generally triangular in shape. They are fixed by their large bases 25 on one end 26, in this case corresponding to the width, of each plate 24. Thus, the members 23 are located in the extension of plates 24.
  • the fixing is advantageously carried out definitively, by welding, machining or other technique known per se.
  • the free ends 27 of the members 23 are identical. They are configured as a lug or finger rounded at its free end, with sides 270, 271 asymmetrical and of rectangular cross section. Alternatively, the cross section is different, for example square. Hereafter, the term finger will preferably be used.
  • the fingers 27 each have a face 28 facing the corresponding face 28 of the other finger 27.
  • the faces 28 are flat, so that the fingers 27 of each member 23 can be in mutual contact via their respective faces 28. .
  • the total width L23 of the two adjoining members 23 corresponds substantially to the minimum width of a section, therefore to the minimum spacing between its walls. Such a width L23 is close to 8 mm.
  • the faces 29 opposite the faces 28 of each finger 27 are each provided with an identical counterbore 30.
  • Each counterbore 30 is produced over the width of the finger 27 and over the entire length of the short side 271 of the finger 27.
  • the plates 24, and therefore the members 23, can move apart by translational movement along the double arrow F2 along a shaft 31 integral with a part 32, under the action of a jack 33 visible to figures 1 , 3 and 4 .
  • the part 32 which de facto forms the support of the second member with variable spacing for maintaining the shape of the profiles, is mounted movable in translation according to the double arrow F.
  • the part 32 is held on a shaft 34.
  • the first step is the supply of profiles to the installation, in a continuous and controlled manner.
  • a supply module ensures the transfer of the profiles from a storage installation to installation 1.
  • the next step is, with the butting module 2, to butt the profiles so as to obtain a profile of length, if not infinite, equal to the cumulative length of all the profiles present in the storage installation. , before replenishing the latter with profiles.
  • the profiles are introduced into the folding module 6. This step can be broken down into several sub-steps.
  • the cheek 16 is moved away from the cheek 17 of the first member for maintaining the shape of the profiles, and therefore of the jaw. This movement takes place either before or after or concomitantly with an initial movement of the second variable-spacing holding member.
  • the fingers 27 are in a distal position relative to the profiles.
  • the spacings of the first and second retaining members are greater than the width of the section to be folded.
  • the profile is advanced in position between the cheeks 16, 17 of the jaw. Once the profile is in place, the cheek 16 is brought closer to the cheek 17 so that the cheeks 16, 17 are in contact with the outer faces of the walls of the profile. This contact is made so that it is sufficient to maintain the walls of the U-section, avoiding any opening thereof by spacing the branches of the U constituting the profiled.
  • the clamping force of the cheeks 16, 17 must be adapted so as not to mark and / or deform the profile.
  • the part 32 is moved forward, along F3, in order to bring the members 23, more precisely the fingers 27, into position in the space defined between the branches of the U of the profile.
  • the fingers 27 have previously been separated from one another until the face 29 of each finger 27 is in contact with an internal face facing the walls of the profile.
  • the fingers 27 are separated after they are placed in the profile. In this way, each branch of the U constituting the section, therefore the side walls of the latter, is maintained both on the outside and on the inside by the first and second retaining members respectively, namely the cheeks 16,17de the jaw and the fingers 27.
  • the support is sufficient to prevent any deformation of the walls of the profile during its folding, which ensures that a constant profile width is maintained, without material stretching at the profile wall and without production of material folds.
  • the geometric shape of the fingers 27 makes it possible, on the one hand, by the countersinking 30 to release a zone for the folded part of the profile and, on the other hand, by the presence of a slightly convex part on the face 29 of the finger 27 in the zone devoid of counterbore 30, to initiate a bending, for example at right angles, of the profile without generating a bead at the bending level.
  • the part 32 moves in translation in the opposite direction, according to the double arrow F3 in order to release the members 23 of the profile.
  • the cheek 16 moves away from the cheek 17 and the rollers 19 ensure the movement of the folded profile, therefore de facto of the frame thus produced up to a finishing module 9.
  • the portions of non-folded profiles located outside the frame are sawn, so as to obtain a frame according to a defined shape and dimensions.
  • the profile offcuts thus obtained are advantageously butted to form profiles which are returned either to a storage installation with a view to subsequent use or reintroduced into the folding installation 1, with a view to a new folding cycle.
  • the finished frames are still open to receive the glazing. They are evacuated onto the table 11 then directed either to a storage and / or packaging area in the event of subsequent use or to another location, or directed to an opening assembly line in the event of a immediate use.

Description

La présente invention concerne une installation ainsi qu'un procédé de pliage de profilés métalliques d'ouvrants.The present invention relates to an installation as well as a method for bending metal sections of openings.

Par ouvrants, on désigne les parties mobiles des fenêtres, portes fenêtres et portes vitrées, que ces ouvrants soient situés à l'intérieur ou à l'extérieur d'un bâtiment. Les profilés métalliques, en général en aluminium, sont destinés à former des cadres, par exemple carrés ou rectangulaires, dans lesquels sont maintenus les parties vitrées des ouvrants. Les dimensions des cadres, tant en termes de largeur, longueur que d'épaisseur sont variables, étant entendu qu'il existe des ouvrants à simple, double, triple ou quadruple vitrages voire plus, ce qui impacte sur l'épaisseur du cadre et donc sur les dimensions des profilés constitutifs de celui-ci.By openings is meant the movable parts of windows, French windows and glass doors, whether these openings are located inside or outside a building. Metal profiles, generally aluminum, are intended to form frames, for example square or rectangular, in which the glazed parts of the openings are held. The dimensions of the frames, both in terms of width, length and thickness are variable, it being understood that there are openings with single, double, triple or quadruple glazing or even more, which has an impact on the thickness of the frame and therefore on the dimensions of the constituent sections thereof.

Les profilés utilisés sont, globalement, configurés en section transversale en U à fond plat. La largeur du profilé, donc la largeur du fond, dépend directement de l'épaisseur du cadre, donc du fait que celui-ci est destiné à maintenir un vitrage simple, double ou autre. Les ouvrants, de par leurs formes géométriques sont, par exemple, des parallélogrammes à angle droit. Pour réaliser de tels cadres on plie à angle droit des profilés rectilignes d'une longueur pouvant atteindre six mètres, étant entendu que la largeur courante de ces profilés varie généralement de huit à trente millimètres.The profiles used are generally configured in U-shaped cross section with a flat bottom. The width of the profile, therefore the width of the bottom, depends directly on the thickness of the frame, therefore on the fact that the latter is intended to hold a single, double or other glazing. The openings, by virtue of their geometric shapes, are, for example, parallelograms at right angles. To produce such frames, rectilinear sections with a length of up to six meters are bent at right angles, it being understood that the current width of these sections generally varies from eight to thirty millimeters.

Le pliage s'effectue en plusieurs zones définies du profilé qui correspondent aux dimensions, longueur ou largeur, du cadre fini. On connait des installations qui permettent de réaliser, à partir de profilés des cadres pour ouvrants. US-A-4 754 632 décrit une telle installation avec un organe de maintien adapté pour abouter les extrémités du rail plié et former le cadre. Une telle solution est dédiée à un type de profilé donné. EP-A-1 285 708 divulgue une installation avec un doigt de pliage articulé permettant de réaliser un angle droit dans le cadre en préservant les dimensions nominales du profilé. Ici aussi, l'installation, si elle permet de réaliser diverses dimensions du cadre, nécessite un changement d'outil, en l'espèce le poinçon de pliage, lorsque l'épaisseur du cadre à réaliser varie, donc lorsque la largeur du profilé change. EP-A-2862644 décrit une machine de pliage selon le préambule de la revendication 1 comportant un unique moyen de maintien, à savoir un poinçon de pliage fixe et des mâchoires de pliage à écartement réglable qui assurent le pliage du profilé autour du poinçon, selon diverses épaisseurs. Une telle solution permet une plus grande variabilité dans la largeur du profilé à plier mais implique également un changement de poinçon lorsque l'on veut plier un profilé d'une largeur inférieure à celle du poinçon.Folding takes place in several defined areas of the profile which correspond to the dimensions, length or width, of the finished frame. We know of installations which make it possible to produce frames for openings from profiles. US-A-4,754,632 describes such an installation with a retaining member adapted to abut the ends of the folded rail and form the frame. Such a solution is dedicated to a given type of profile. EP-A-1 285 708 discloses an installation with an articulated folding finger making it possible to achieve a right angle in the frame while preserving the nominal dimensions of the profile. Here too, the installation, if it makes it possible to achieve various dimensions of the frame, requires a change of tool, in this case the bending punch, when the thickness of the frame to be produced varies, therefore when the width of the profile changes. EP-A-2862644 describes a folding machine according to the preamble of claim 1 comprising a single holding means, namely a fixed folding punch and adjustable spacing folding jaws which ensure the folding of the profile around the punch, according to various thicknesses. Such a solution allows greater variability in the width of the profile to be bent but also involves a change of punch when it is desired to bend a profile of a width less than that of the punch.

Par ailleurs, il est important de réaliser des cadres avec une épaisseur constante tout au long du profilé, en particulier au niveau des coins du cadre. Cela implique que la largeur du profilé, et sa forme géométrique en U, soient préservées sur tout le cadre, sans perte ou déformation du profilé, pour toute les largeurs de profilés couramment rencontrées, étant entendu que les épaisseurs des métaux utilisés pour former les profilés sont standardisées et comprises entre 5 mm et 10 mm. Par ailleurs, une installation de pliage doit être à même d'effectuer des opérations de pliage à une cadence d'au moins un cadre par minute. De plus, une telle installation de pliage doit offrir une adaptabilité suffisante pour plier des profilés de différentes largeurs, pour obtenir des cadres de diverses épaisseurs, cela en minimisant les opérations nécessaires pour adapter l'installation.In addition, it is important to make frames with a constant thickness throughout the profile, in particular at the corners of the frame. This implies that the width of the profile, and its geometric U shape, are preserved over the entire frame, without loss or deformation of the profile, for all the widths of profiles commonly encountered, it being understood that the thicknesses of the metals used to form the profiles are standardized and between 5 mm and 10 mm. Furthermore, a folding installation must be able to perform folding operations at a rate of at least one frame per minute. In addition, such a folding installation must offer sufficient adaptability to fold profiles of different widths, to obtain frames of various thicknesses, while minimizing the operations necessary to adapt the installation.

C'est à ces objectifs qu'entend plus particulièrement répondre l'invention en proposant une installation de pliage de profilés métalliques d'ouvrants utilisable pour réaliser des cadres de différentes dimensions et épaisseurs, avec un minimum de pièces, sans changement d'organes sur l'installation et d'un entretien aisé, adapté pour utiliser les différents types de profilés existant.It is to these objectives that the invention more particularly intends to respond by proposing an installation for folding metal profiles of openings which can be used to produce frames of different dimensions and thicknesses, with a minimum of parts, without changing components on installation and easy maintenance, adapted to use the different types of existing profiles.

A cet effet, l'invention a pour objet une installation de pliage de profilés métalliques d'ouvrants comprenant au moins un module d'amenée des profilés sur l'installation, un module d'aboutement des profilés, un module d'avance et de guidage des profilés dans l'installation, un module de pliage des profilés comportant un moyen de maintien en forme des profilés lors du pliage comprenant une mâchoire à écartement variable, ladite mâchoire formant un premier organe à écartement variable de maintien en forme des profilés et entourant un second organe de maintien en forme des profilés lors du pliage, un module de finition des cadres et un module de réception des cadres finis, caractérisée en ce que le module de pliage comprend au moins deux seconds organes de maintien en forme des profilés et en ce que les seconds organes de maintien en forme sont à écartement variable.To this end, the invention relates to an installation for folding metal profiles of openings comprising at least one module for feeding the profiles onto the installation, a module for abutting the profiles, a module for advancing and guiding the profiles in the installation, a profile folding module comprising a means for maintaining the profiles in shape during folding comprising a jaw with variable spacing, said jaw forming a first member with variable retaining spacing in the shape of the profiles and surrounding a second member for maintaining the shape of the profiles during folding, a frame finishing module and a module for receiving the finished frames, characterized in that the folding module comprises at least two second holding members in the shape of the sections and in that the second shape-retaining members are of variable spacing.

Grâce à l'invention, le module de pliage comprend des éléments à écartement variable, à savoir la mâchoire et l'organe de maintien, ce qui permet d'adapter, sans changement d'outil, le module de pliage aux diverses largeurs de profilés à plier, cela en couvrant toute l'étendue de la gamme de largeur de profilés couramment rencontrés. L'invention permet ainsi un emploi optimum de l'installation, en préservant les cadences de production et en offrant une adaptabilité optimale. En effet, grâce à l'invention, l'installation de pliage est à même de réaliser jusqu'à au moins 140 cadres par heure.Thanks to the invention, the bending module comprises elements with variable spacing, namely the jaw and the holding member, which makes it possible to adapt, without changing the tool, the bending module to the various widths of profiles. to be folded, this covering the full extent of the width range of commonly encountered profiles. The invention thus allows optimum use of the installation, while preserving production rates and offering optimum adaptability. Indeed, thanks to the invention, the folding installation is able to produce up to at least 140 frames per hour.

Selon des aspects avantageux mais non obligatoires de l'invention, une telle installation peut comprendre une ou plusieurs des caractéristiques suivantes:

  • les seconds organes de maintien en forme sont globalement de forme triangulaire à côtés asymétriques.
  • Les extrémités des seconds organes de maintien en forme sont configurées en ergot ou doigt arrondi à l'extrémité.
  • Les doigts sont pourvus chacun d'un lamage ménagé sur une face destinée à être en regard avec une face de la paroi des profilés.
  • Les lamages s'étendent de l'extrémité libre de chaque second organe de maintien en forme en direction de la base de celui-ci.
According to advantageous but not mandatory aspects of the invention, such an installation may include one or more of the following characteristics:
  • the second shape-retaining members are generally triangular in shape with asymmetric sides.
  • The ends of the second shape-retaining members are configured as a lug or finger rounded at the end.
  • The fingers are each provided with a countersink formed on one face intended to be opposite one face of the wall of the profiles.
  • The countersinks extend from the free end of each second shape-retaining member towards the base thereof.

L'invention concerne également un procédé de pliage de profilés métalliques d'ouvrants, à l'aide d'une installation conforme à une quelconque des caractéristiques précédentes, comprenant au moins les étapes suivantes:

  • a) amener au moins un profilé sur l'installation à partir d'une installation de stockage de profilés,
  • b) abouter les profilés avant leurs introductions dans l'installation,
  • c) déplacer et guider les profilés dans l'installation, préalablement à leurs pliages,
  • d) plier les profilés pour former des cadres de dimensions prédéfinies,
  • e) finir par sciage des profiles les cadres obtenus à l'étape d),
  • f) réceptionner et stocker les cadres finis à l'étape e),
  • caractérisé en ce qu'avant l'étape d) de pliage, on réalise une étape supplémentaire g) de mise en position des premier et second organes à écartement variable et constitutifs du moyen de maintien en forme des profilés sur les faces internes et externes des profilés.
The invention also relates to a method of bending metal profiles for openings, using an installation in accordance with any one of the preceding characteristics, comprising at least the following steps:
  • a) bring at least one profile to the installation from a profile storage installation,
  • b) butt the profiles before their introduction into the installation,
  • c) move and guide the profiles in the installation, prior to their bending,
  • d) bending the profiles to form frames of predefined dimensions,
  • e) finish by sawing the profiles the frames obtained in step d),
  • f) receive and store the frames finished in step e),
  • characterized in that before the folding step d), an additional step g) is carried out for positioning the first and second members with variable spacing and constituting the means for keeping the profiles in shape on the internal and external faces of the profiles.

Selon des aspects avantageux mais non obligatoires, un tel procédé peut comprendre au moins une des étapes suivantes :

  • lors de l'étape g), on positionne le profilé avant de refermer les joues de la mâchoire constitutive du premier organe de maintien sur les faces externes des parois du profilé.
  • lors de l'étape g), le second organe de maintien est positionné entre les parois du profilé lorsque ce dernier est maintenu par le premier organe.
  • Avant l'étape g), on écarte les doigts constitutifs du second organe de maintien en forme contre les faces internes des parois du profilé.
According to advantageous but not compulsory aspects, such a method can comprise at least one of the following steps:
  • during step g), the profile is positioned before closing the cheeks of the jaw constituting the first retaining member on the external faces of the walls of the profile.
  • during step g), the second holding member is positioned between the walls of the section when the latter is held by the first member.
  • Before step g), the constituent fingers of the second shaped retaining member are moved apart against the internal faces of the walls of the profile.

L'invention sera mieux comprise et d'autres avantages de celle-ci apparaitront plus clairement à la lecture de la description qui va suivre de plusieurs modes de réalisation préférés de l'invention, donnée à titre d'exemple et faite en référence aux dessins suivants dans lesquels:

  • la figure 1 est une vue de face d'une installation de pliage de profilés conforme à un mode de réalisation de l'invention,
  • la figure 2 est une vue latérale, selon la flèche II et à une autre échelle de l'installation de la figure 1,
  • la figure 3 est une vue de face, partielle, à plus grande échelle et centrée sur le module de pliage de l'installation de la figure 1,
  • la figure 4 est une vue de face, simplifiée et à plus grande échelle du module de pliage seul,
  • la figure 5 est une vue de face à plus grande échelle du détail V à la figure 4 et
  • la figure 6 est une vue en perspective, partielle, à partir du haut et à plus grande échelle d'une partie du module de pliage de la figure 5.
The invention will be better understood and other advantages thereof will emerge more clearly on reading the following description of several preferred embodiments of the invention, given by way of example and made with reference to the drawings. following in which:
  • the figure 1 is a front view of an installation for folding profiles according to one embodiment of the invention,
  • the figure 2 is a side view, according to arrow II and on another scale of the installation of the figure 1 ,
  • the figure 3 is a front view, partial, on a larger scale and centered on the folding module of the installation of the figure 1 ,
  • the figure 4 is a front view, simplified and on a larger scale of the folding module alone,
  • the figure 5 is a front view on a larger scale of detail V to figure 4 and
  • the figure 6 is a perspective view, partial, from the top and on a larger scale of part of the folding module of the figure 5 .

La figure 1 illustre, de manière simplifiée, une installation de pliage de profilés métalliques d'ouvrants 1. Ici, les profilés, connus en soi, ne sont pas illustrés pour faciliter la lecture. Il en est de même des installations de stockage des profilés avant pliage et des installations de stockage des cadres finis obtenus par pliage dans l'installation. L'installation 1 est alimentée par une installation de stockage, également nommée magasin, qui permet de stocker des profilés en nombre suffisant et en dimensions variées afin de pouvoir alimenter en continu l'installation 1 lors de sa période d'utilisation, typiquement une journée de travail. En variante, la capacité du magasin est adaptée, en particulier si l'installation est appelée à fonctionner 24 heures sur 24.The figure 1 illustrates, in a simplified manner, an installation for folding metal profiles of openings 1. Here, the profiles, known per se, are not illustrated to facilitate reading. The same applies to the storage facilities for the profiles before bending and the storage facilities for the finished frames obtained by bending in the installation. Installation 1 is supplied by a storage installation, also called a store, which makes it possible to store profiles in a sufficient number and in various dimensions in order to be able to continuously supply installation 1 during its period of use, typically one day. of work. As a variant, the capacity of the store is adapted, in particular if the installation is called upon to operate 24 hours a day.

Les profilés utilisés dans l'installation 1 sont connus en soi. Il s'agit de profilés métalliques, typiquement en aluminium ou en acier inoxydable, à section transversale en U, d'une longueur variant de 3 m à 6 m, d'une largeur compris entre 6 mm et 30 mm pour une hauteur allant de 5 mm à 10 mm. En d'autres termes, l'installation 1 est à même de plier l'ensemble des profilés couramment rencontrés pour former des cadres d'ouvrants, par exemple carré ou rectangulaire. On conçoit qu'une telle installation 1 est à même de plier des profilés pour réaliser des cadres d'une autre forme géométrique que carrée ou rectangulaire, par exemple en triangle.The profiles used in the installation 1 are known per se. These are metal profiles, typically in aluminum or stainless steel, with a U-shaped cross section, a length varying from 3 m to 6 m, a width between 6 mm and 30 mm for a height ranging from 5 mm to 10 mm. In other words, the installation 1 is able to bend all of the profiles commonly encountered to form opening frames, for example square or rectangular. It will be understood that such an installation 1 is able to bend profiles to produce frames of a geometric shape other than square or rectangular, for example in a triangle.

L'arrivée des profilés dans l'installation 1 est réalisée à partir de la droite de la figure 1. En variante, l'arrivée des profilés est située sur la gauche de l'installation. Cette alimentation de l'installation 1 en profilés est matérialisée par la flèche F. Un module d'amenée des profilés, non illustré, assure une alimentation régulière en profilés dans l'installation 1, cela en s'adaptant aux vitesses de réalisation des cadres dans l'installation 1. Le module d'amenée comprend des organes d'entrainement en translation des profilés. Le module est, avantageusement, disposé en sortie d'un module de stockage des profilés, non représenté. Il assure ainsi une liaison physique entre l'installation 1 et une installation de stockage des profilés. Le module d'amenée est donc disposé, préférentiellement, entre l'installation 1 et une installation de stockage des profilés tout en étant amovible par rapport à ces dernières. Un tel module d'amenée est adapté pour alimenter en profilés l'installation 1 tout en s'adaptant aux variations de vitesse de pliage de l'installation, donc aux cadences de production.The arrival of the profiles in installation 1 is made from the right of the figure 1 . As a variant, the arrival of the profiles is located on the left of the installation. This supply of the installation 1 with profiles is indicated by the arrow F. A feed module for the profiles, not illustrated, ensures a regular supply of profiles into the installation 1, this by adapting to the speed of production of the frames. in the installation 1. The feed module comprises members for driving the profiles in translation. The module is advantageously disposed at the outlet of a profile storage module, not shown. It thus provides a physical link between the installation 1 and an installation for storing the profiles. The feed module is therefore preferably arranged between the installation 1 and an installation for storing the profiles while being removable with respect to the latter. Such a feed module is suitable for supplying the installation 1 with sections while adapting to variations in the folding speed of the installation, and therefore to production rates.

Un premier module constitutif de l'installation 1, en regardant la partie droite de la figure 1, est un module d'aboutage 2 des profilés. Le module 2 comprend des plaques de maintien 3. Les plaques 3 sont disposées perpendiculairement les unes aux autres, de part et d'autre de la trajectoire des profilés lors de leurs déplacements dans l'installation 1. Les plaques 3 maintiennent les profilés en position lorsqu'ils passent par le module 2. Des moyens d'entrainement, non visibles à la figure 1, assurent le déplacement en translation des profilés dans le module 2 de sorte que les profilés se suivent sans espace entre les extrémités en regard des deux profilés voisins. Ainsi, on réalise une continuité dans le déplacement des profilés, sans temps mort dans le pliage du fait que les profilés aboutés sont, de facto, pris en charge dans l'installation 1 comme s'il s'agissait d'un seul profilé de longueur infinie.A first constituent module of the installation 1, looking at the right part of the figure 1 , is a module for joining the profiles 2. Module 2 comprises holding plates 3. Plates 3 are arranged perpendicular to each other, on either side of the path of the profiles when they move in installation 1. Plates 3 hold the profiles in position. when they go through module 2. Training means, not visible to the figure 1 , ensure the translational movement of the profiles in the module 2 so that the profiles follow each other without space between the ends facing the two neighboring profiles. Thus, a continuity is achieved in the movement of the profiles, without downtime in the bending because the butted profiles are, de facto, supported in the installation 1 as if it were a single profile of infinite length.

Les moyens d'entrainement comportent des courroies d'entrainement, avantageusement en matière synthétique. L'utilisation de courroies en matière synthétique permet d'éviter autant que faire se peut tout marquage du profilé, en particulier lorsque ce dernier est en aluminium. De plus la matière des courroies d'entrainement a un coefficient de friction suffisant pour entrainer les profilés en évitant tout phénomène de ripage. Pour cela, la dureté de la courroie est inférieure à celle du profilé. En sortie du module d'aboutage, sur la gauche en regardant la figure 1, les profilés sont pris en charge par un module d'avance et de guidage 4.The drive means comprise drive belts, advantageously made of synthetic material. The use of synthetic material belts makes it possible to avoid as much as possible any marking of the profile, in particular when the latter is made of aluminum. In addition, the material of the drive belts has a sufficient coefficient of friction to drive the profiles while avoiding any slip phenomenon. For this, the hardness of the belt is lower than that of the profile. At the end of the butting module, on the left, looking at the figure 1 , the profiles are supported by a feed and guide module 4.

Le module d'avance et de guidage 4 comprend, comme le module 2, des plaques de maintien, des courroies d'entrainement, avantageusement également en matériau non agressif pour les profilés, ainsi que des galets 5. Les galets 5 permettent de déplacer précisément les profilés, en les orientant et en les guidant, selon au moins un axe et, dans un autre mode de réalisation non illustré, jusqu'à trois axes XYZ. Pour cela, les plaques de maintien 3 et les galets 5 sont mobiles, avec une course prédéfinie. Des capteurs détectent la position du profilé lors de son entrée dans le module 4 et commandent les déplacements nécessaires des plaques de maintien 3 et des galets 5 pour positionner le profilé en sortie du module 4, avant son entrée dans le module de pliage 6.The advance and guide module 4 comprises, like the module 2, retaining plates, drive belts, advantageously also made of a material which is not aggressive for the profiles, as well as rollers 5. The rollers 5 allow precise movement. the profiles, by orienting and guiding them, along at least one axis and, in another embodiment not shown, up to three XYZ axes. For this, the retaining plates 3 and the rollers 5 are movable, with a predefined stroke. Of sensors detect the position of the profile when it enters the module 4 and control the necessary movements of the holding plates 3 and rollers 5 to position the profile at the exit of the module 4, before it enters the folding module 6.

Le module de pliage 6 est particulièrement illustré aux figures 3 à 6. Il sera donc décrit plus en détail ultérieurement.The folding module 6 is particularly illustrated in figures 3 to 6 . It will therefore be described in more detail later.

En regardant la figure 1, avant le pliage par le module de pliage 6, les profilés passent par un module de marquage 7. Ce module 7, non obligatoire pour la réalisation du pliage des profilés selon l'invention, permet d'imprimer et/ou de graver des informations sur le profilé. Il s'agit notamment de l'ensemble des informations techniques permettant d'identifier le cadre fini ainsi que ses caractéristiques physiques et mécaniques. De manière préférée, le marquage est effectué par un laser 8, selon une technique connue en soi.Looking at the figure 1 , before the folding by the folding module 6, the profiles pass through a marking module 7. This module 7, not compulsory for carrying out the folding of the profiles according to the invention, makes it possible to print and / or engrave information on the profile. This concerns in particular all the technical information allowing the identification of the finished frame as well as its physical and mechanical characteristics. Preferably, the marking is carried out by a laser 8, according to a technique known per se.

A gauche du module 6 en regardant la figure 1, donc après le pliage des profilés, les cadres formés passent par un module de finition 9. Une fois plié, donc avec les extrémités libres du profilé formant le cadre en regard l'une de l'autre et prêtes à recevoir le vitrage et prêts à être aboutées par collage, soudage ou par une autre technique connue en soi, par exemple avec insertion d'une pièce de liaison, les profilés pliés sont sciés par une scie 10 constitutive du module de finition 9.To the left of module 6 looking at the figure 1 , therefore after the folding of the profiles, the frames formed pass through a finisher 9. Once folded, therefore with the free ends of the profile forming the frame facing each other and ready to receive the glazing and ready to be butted together by gluing, welding or by another technique known per se, for example with insertion of a connecting piece, the folded profiles are sawn by a saw 10 constituting the finisher 9.

Une fois sciés, les cadres finis sont transférés sur une table de réception 11. La table 11 est inclinée par rapport à la verticale. Les cadres sont ensuite évacués vers une zone de stockage et/ou de conditionnement. La table 11 est particulièrement visible aux figures 1 et 2. On note, en regardant les figures 1 et 2, que les différents modules 2, 4, 6, 7, 9 sont alignés, en partie basse de la table 11. Comme cela ressort de la figure 2, les organes moteurs 12 des différents modules sont disposés perpendiculairement au sens F de déplacement des profilés, sous la table 11. Ainsi, en regardant l'installation 1, seules sont visibles, comme illustré à la figure 1, les parties de modules dans lesquelles se déplacent les profilés. Les autres éléments constitutifs des modules de l'installation 1 sont situés sous la table 11. L'ensemble des modules est porté par un châssis 13.Once sawn, the finished frames are transferred to a receiving table 11. Table 11 is tilted relative to the vertical. The frames are then evacuated to a storage and / or packaging area. Table 11 is particularly visible to figures 1 and 2 . We note, by looking at the figures 1 and 2 , that the different modules 2, 4, 6, 7, 9 are aligned, in the lower part of the table 11. As shown in the figure 2 , the drive members 12 of the different modules are arranged perpendicular to the direction F of movement of the profiles, under the table 11. Thus, looking at the installation 1, only the equipment is visible, as illustrated in figure 1 , the parts of modules in which the profiles move. The other elements that make up the modules of the installation 1 are located under the table 11. All of the modules are carried by a frame 13.

Le module de pliage 6 est maintenant décrit en détail. Il comprend un rail 14 de déplacement du profilé. L'avance du profilé est générée et contrôlée par des galets presseurs 15. Le déplacement s'effectue entre les joues parallèles 16, 17 d'une mâchoire de serrage. Ici, la joue 16 est mobile, selon la double flèche F2, par rapport à la joue 17 qui est immobile. De la sorte on éloigne ou on rapproche les joues 16, 17. La mâchoire 16, 17 est constitutive d'un moyen de maintien en forme des profilés lors du pliage. La mâchoire 16, 17 constitue donc un premier organe à écartement variable de maintien en forme des profilés.The folding module 6 is now described in detail. It comprises a rail 14 for moving the profile. The advance of the profile is generated and controlled by pressure rollers 15. The movement takes place between the parallel cheeks 16, 17 of a clamping jaw. Here, the cheek 16 is mobile, according to the double arrow F2, relative to the cheek 17 which is stationary. In this way, the cheeks 16, 17 are moved away or brought together. The jaw 16, 17 constitutes a means for maintaining the shaped sections during folding. The jaw 16, 17 therefore constitutes a first member with variable spacing for maintaining the shaped sections.

Le module de pliage 6 comprend un organe de pliage 18 positionné dans le prolongement du rail 14. Cet organe 18 est globalement en forme de goulotte aplatie. Ainsi, il peut recevoir différentes largeurs de profilés. L'organe 18 est monté pivotant autour d'un arbre de rotation 19. Le pivotement de l'organe 18 s'effectue selon une direction illustrée par la double flèche F1 entre un point mort bas correspondant à un alignement de l'organe 18 avec le rail 14, comme illustré aux figures 3 et 4, et un point mort haut dans lequel l'organe 18 est positionné angulairement par rapport au rail 14.The folding module 6 comprises a folding member 18 positioned in the extension of the rail 14. This member 18 is generally in the form of a flattened chute. Thus, it can accommodate different widths of profiles. The member 18 is mounted to pivot around a rotation shaft 19. The member 18 is pivoted in a direction illustrated by the double arrow F1 between a bottom dead center corresponding to an alignment of the member 18 with rail 14, as shown in figures 3 and 4 , and a top dead center in which the member 18 is positioned angularly relative to the rail 14.

En l'espèce l'organe 18 peut pivoter jusqu'à environ 140° par rapport au rail 14, selon les angles de liage requis. Le mouvement de pivotement de l'organe 18 autour de l'arbre 19 est assuré par un vérin 20. Ce dernier est situé en arrière du plan de pliage P matérialisé par une plaque d'appui 21, afin de ne pas gêner le déplacement de l'organe 18 et du profilé. Pour cela, le mouvement du vérin 20 est transmis à l'organe 18 par une bielle 22.In this case, the member 18 can pivot up to approximately 140 ° relative to the rail 14, depending on the required binding angles. The pivoting movement of the member 18 around the shaft 19 is provided by a jack 20. The latter is located behind the folding plane P materialized by a support plate 21, so as not to hamper the movement of the member 18 and the profile. For this, the movement of the jack 20 is transmitted to the member 18 by a connecting rod 22.

Le module 6 comprend également au moins deux organes de maintien en forme 23 des profilés. Avantageusement, le nombre d'organes 23 est de deux. En variante non illustré, le nombre est supérieur, par exemple de trois. Les organes 23 sont également constitutifs du moyen de maintien en forme des profilés lors du pliage et définissent un second organe à écartement variable de maintien en forme des profilés.The module 6 also comprises at least two shape-retaining members 23 of the profiles. Advantageously, the number of organs 23 is two. In a variant not shown, the number is greater, for example three. The members 23 also constitute the means for maintaining the shaped sections during folding and define a second member with variable spacing for maintaining the shaped sections.

Les organes 23 ont pour objet de maintenir en forme, à partir de l'intérieur du profilé, les parois et le fond du profilé lors du pliage, afin de préserver le parallélisme de parois latérales du profilé et la constance de l'épaisseur, en évitant toute déformation du profilé et/ou étirement de matière lors du pliage. Par ailleurs, les organes 23 définissent un point d'appui pour le pliage du profilé par l'organe 18. De facto, la position des organes 23 définit également la zone où le pliage est effectué sur le profilé.The purpose of the members 23 is to keep in shape, from the inside of the profile, the walls and the bottom of the profile during folding, in order to preserve the parallelism of the side walls of the profile and the consistency of the thickness, in avoiding any deformation of the profiling and / or stretching of material during folding. Furthermore, the members 23 define a fulcrum for the folding of the profile by the member 18. De facto, the position of the members 23 also defines the zone where the folding is performed on the profile.

Comme cela ressort particulièrement aux figures 5 et 6 les deux organes 23 sont montés sur des platines 24. Les platines 24, en forme de plaques rectangulaires, ont leurs plus grandes dimensions orientées angulairement au sens de déplacement des profilés. Ici, l'angle a, représenté à la figure 5 entre l'axe longitudinal A des platines 24 et la verticale, est compris entre 30° et 60°.As is particularly evident in figures 5 and 6 the two members 23 are mounted on plates 24. The plates 24, in the form of rectangular plates, have their largest dimensions oriented angularly in the direction of movement of the profiles. Here, the angle a, represented at figure 5 between the longitudinal axis A of the plates 24 and the vertical is between 30 ° and 60 °.

Les organes 23 sont globalement de forme triangulaire. Ils sont fixés par leurs grandes bases 25 sur une extrémité 26, en l'espèce correspondant à la largeur, de chaque platine 24. Ainsi, les organes 23 sont situés dans le prolongement de platines 24. La fixation est avantageusement réalisée de manière définitive, par soudage, usinage ou autre technique connue en soi.The organs 23 are generally triangular in shape. They are fixed by their large bases 25 on one end 26, in this case corresponding to the width, of each plate 24. Thus, the members 23 are located in the extension of plates 24. The fixing is advantageously carried out definitively, by welding, machining or other technique known per se.

Les extrémités libres 27 des organes 23 sont identiques. Elles sont configurées en ergot ou doigt arrondi à son extrémité libre, avec des côtés 270, 271 asymétriques et à section transversale rectangulaire. En variante, la section transversale est différente, par exemple carrée. Par la suite, le terme doigt sera préférentiellement utilisé.The free ends 27 of the members 23 are identical. They are configured as a lug or finger rounded at its free end, with sides 270, 271 asymmetrical and of rectangular cross section. Alternatively, the cross section is different, for example square. Hereafter, the term finger will preferably be used.

Les doigts 27 ont chacun une face 28 en regard de la face 28 correspondante de l'autre doigt 27. Les faces 28 sont planes, de sorte à ce que les doigts 27 de chaque organe 23 puissent être en contact mutuel par leurs faces 28 respectives. Dans cette configuration, illustrée à la figure 6, la largeur totale L23 des deux organes 23 accolés correspond sensiblement à la largeur minimale d'un profilé, donc à l'écartement minimal entre ses parois. Une telle largeur L23 est voisine de 8 mm.The fingers 27 each have a face 28 facing the corresponding face 28 of the other finger 27. The faces 28 are flat, so that the fingers 27 of each member 23 can be in mutual contact via their respective faces 28. . In this configuration, shown in figure 6 , the total width L23 of the two adjoining members 23 corresponds substantially to the minimum width of a section, therefore to the minimum spacing between its walls. Such a width L23 is close to 8 mm.

Les faces opposées 29 aux faces 28 de chaque doigt 27 sont pourvues chacune d'un lamage 30 identique. Chaque lamage 30 est réalisé sur la largeur du doigt 27 et sur toute la longueur du petit côté 271 du doigt 27.The faces 29 opposite the faces 28 of each finger 27 are each provided with an identical counterbore 30. Each counterbore 30 is produced over the width of the finger 27 and over the entire length of the short side 271 of the finger 27.

Les platines 24, et donc les organes 23, peuvent s'écarter par déplacement en translation selon la double flèche F2 le long d'un arbre 31 solidaire d'une pièce 32, sous l'action d'un vérin 33 visible aux figures 1, 3 et 4.The plates 24, and therefore the members 23, can move apart by translational movement along the double arrow F2 along a shaft 31 integral with a part 32, under the action of a jack 33 visible to figures 1 , 3 and 4 .

La pièce 32, qui de facto forme le support du second organe à écartement variable de maintien en forme des profilés, est montée mobile en translation selon la double flèche F3.La pièce 32 est maintenue sur un arbre 34. Ainsi, on peut rapprocher et éloigner les doigts 27 des profilés lorsque ces derniers sont en position sur l'organe de pliage 18.The part 32, which de facto forms the support of the second member with variable spacing for maintaining the shape of the profiles, is mounted movable in translation according to the double arrow F. The part 32 is held on a shaft 34. Thus, one can bring together and move the fingers 27 away from the profiles when the latter are in position on the folding member 18.

Le procédé de pliage avec une installation de pliage telle que décrite précédemment et conforme à l'invention est maintenant décrite en référence aux diverses figures.The folding process with a folding installation as described above and in accordance with the invention is now described with reference to the various figures.

La première étape est l'alimentation en profilés de l'installation, cela de manière continue et contrôlée. Pour cela, un module d'amenée assure le transfert des profilés depuis une installation de stockage jusqu'à l'installation 1.The first step is the supply of profiles to the installation, in a continuous and controlled manner. For this, a supply module ensures the transfer of the profiles from a storage installation to installation 1.

L'étape suivante consiste, avec le module d'aboutage 2, à abouter les profilés de sorte à obtenir un profilé de longueur, si ce n'est infini, égale à la longueur cumulée de tous les profilés présents dans l'installation de stockage, avant réapprovisionnement de cette dernière en profilés.The next step is, with the butting module 2, to butt the profiles so as to obtain a profile of length, if not infinite, equal to the cumulative length of all the profiles present in the storage installation. , before replenishing the latter with profiles.

Après la prise en charge par le module de déplacement et le marquage, optionnel, des profilés dans le module de marquage 7, les profilés sont introduits dans le module de pliage 6. Cette étape peut être décomposée en plusieurs sous-étapes.After the displacement module has taken over and the optional marking of the profiles in the marking module 7, the profiles are introduced into the folding module 6. This step can be broken down into several sub-steps.

Tout d'abord, on écarte la joue 16 de la joue 17 du premier organe de maintien en forme des profilés, donc de la mâchoire. Ce mouvement s'effectue soit avant soit après soit concomitamment à un mouvement initial du second organe de maintien à écartement variable. A ce stade, les doigts 27 sont en position distale par rapport aux profilés.First of all, the cheek 16 is moved away from the cheek 17 of the first member for maintaining the shape of the profiles, and therefore of the jaw. This movement takes place either before or after or concomitantly with an initial movement of the second variable-spacing holding member. At this stage, the fingers 27 are in a distal position relative to the profiles.

Les écartements des premier et second organes de maintien sont supérieurs à la largeur du profilé à plier. Ainsi, on fait avancer le profilé en position entre les joues 16, 17 de la mâchoire. Une fois le profilé en place, on rapproche la joue 16 de la joue 17 de sorte que les joues 16, 17 sont en contact avec les faces externes des parois du profilé. Ce contact est réalisé de sorte qu'il soit suffisant pour maintenir les parois du profilé en U, en évitant toute ouverture de celui-ci par écartement des branches du U constitutif du profilé. La force de serrage des joues 16, 17 doit être adaptée afin de ne pas marquer et/ou déformer le profilé.The spacings of the first and second retaining members are greater than the width of the section to be folded. Thus, the profile is advanced in position between the cheeks 16, 17 of the jaw. Once the profile is in place, the cheek 16 is brought closer to the cheek 17 so that the cheeks 16, 17 are in contact with the outer faces of the walls of the profile. This contact is made so that it is sufficient to maintain the walls of the U-section, avoiding any opening thereof by spacing the branches of the U constituting the profiled. The clamping force of the cheeks 16, 17 must be adapted so as not to mark and / or deform the profile.

Une fois la mâchoire en position, on fait avancer la pièce 32, selon F3, afin d'amener les organes 23, plus précisément les doigts 27, en position dans l'espace défini entre les branches du U du profilé. Avantageusement, les doigts 27 ont préalablement été écartés l'un de l'autre jusqu'à ce que la face 29 de chaque doigt 27 soit en contact avec une face interne en regard des parois du profilé. Dans un autre mode de réalisation de l'invention, les doigts 27 sont écartés postérieurement à leur mise en place dans le profilé. De la sorte, chaque branche du U constitutif du profilé, donc les parois latérales de celui-ci, est maintenue tant sur l'extérieur que sur l'intérieur par respectivement les premier et second organes de maintien, à savoir les joues 16,17de la mâchoire et les doigts 27. Le maintien est suffisant pour éviter toute déformation des parois du profilé lors de son pliage, ce qui assure le maintien d'une largeur de profilé constante, sans étirement de matière au niveau de la paroi du profilé et sans réalisation de pli de matière.Once the jaw is in position, the part 32 is moved forward, along F3, in order to bring the members 23, more precisely the fingers 27, into position in the space defined between the branches of the U of the profile. Advantageously, the fingers 27 have previously been separated from one another until the face 29 of each finger 27 is in contact with an internal face facing the walls of the profile. In another embodiment of the invention, the fingers 27 are separated after they are placed in the profile. In this way, each branch of the U constituting the section, therefore the side walls of the latter, is maintained both on the outside and on the inside by the first and second retaining members respectively, namely the cheeks 16,17de the jaw and the fingers 27. The support is sufficient to prevent any deformation of the walls of the profile during its folding, which ensures that a constant profile width is maintained, without material stretching at the profile wall and without production of material folds.

La forme géométrique des doigts 27 permet, d'une part, par le lamage 30 de dégager une zone pour la partie pliée du profilé et, d'autre part, par la présence d'une partie légèrement bombée sur la face 29 du doigt 27 dans la zone dépourvue de lamage 30, d'initier un pliage, par exemple à angle droit, du profilé sans générer de bourrelet au niveau du pliage.The geometric shape of the fingers 27 makes it possible, on the one hand, by the countersinking 30 to release a zone for the folded part of the profile and, on the other hand, by the presence of a slightly convex part on the face 29 of the finger 27 in the zone devoid of counterbore 30, to initiate a bending, for example at right angles, of the profile without generating a bead at the bending level.

Lorsque le profilé est plié, la pièce 32 se déplace en translation en sens inverse, selon la double flèche F3 afin de dégager les organes 23 du profilé. La joue 16 s'écarte de la joue 17 et les galets 19 assure le déplacement du profilé plié, donc de facto du cadre ainsi réalisé jusqu'à un module de finition 9. Les portions de profilés non pliés et situées en dehors du cadre sont sciées, de sorte à obtenir un cadre selon une forme et des dimensions définies. Les chutes de profilés ainsi obtenues sont avantageusement aboutées pour former des profilés qui sont remis soit dans une installation de stockage en vue d'une utilisation ultérieure soit réintroduits dans l'installation de pliage 1, en vue d'un nouveau cycle de pliage.When the profile is folded, the part 32 moves in translation in the opposite direction, according to the double arrow F3 in order to release the members 23 of the profile. The cheek 16 moves away from the cheek 17 and the rollers 19 ensure the movement of the folded profile, therefore de facto of the frame thus produced up to a finishing module 9. The portions of non-folded profiles located outside the frame are sawn, so as to obtain a frame according to a defined shape and dimensions. The profile offcuts thus obtained are advantageously butted to form profiles which are returned either to a storage installation with a view to subsequent use or reintroduced into the folding installation 1, with a view to a new folding cycle.

Les cadres finis sont encore ouvert afin de recevoir le vitrage. Ils sont évacués sur la table 11 puis dirigés soit vers une zone de stockage et/ou d'emballage dans le cas d'une utilisation ultérieure ou en un autre endroit, soit orientés vers une chaine de montage des ouvrants dans le cas d'une utilisation immédiate.The finished frames are still open to receive the glazing. They are evacuated onto the table 11 then directed either to a storage and / or packaging area in the event of subsequent use or to another location, or directed to an opening assembly line in the event of a immediate use.

Claims (9)

  1. A device (1) for bending metal leaf profiles, comprising at least one module for feeding the profiles onto the device, a module (2) for joining the profiles, a module (4) for advancing and guiding the profiles in the device, a profile bending module (6) having a means for holding the shape of the profiles during the bending, which has a variable-spacing jaw (16, 17), said jaw forming a first variable-spacing member for holding the shape of the profiles and surrounding a second member (23) for holding the shape of the profiles during bending, a frame finishing module (9) and a module (11) for receiving the finished frames, characterised in that the bending module (6) comprises at least two second members (23) for holding the shape of the profiles and in that the second shape-holding members (23) are of variable spacing (F2).
  2. The device according to claim 1, characterised in that the second shape-holding members (23) are generally triangular in shape with asymmetrical sides (270, 271).
  3. The device according to claim 2, characterised in that the ends (27) of the second shape-holding members (23) are configured as a lug or finger rounded at the end.
  4. The device according to claim 3, characterised in that the fingers (27) are each provided with a countersink (30) formed on a face (29) intended to be opposite one face of the wall of the profiles.
  5. The device according to claim 4, characterised in that the countersinks (30) extend from the free end (27) of each second shape-holding member (23) towards the base (25) thereof.
  6. A method for bending metal leaf profiles, using a device (1) according to any one of the preceding claims, comprising at least the following steps:
    - a) bringing (F) at least one profile onto the device from a profile storage device,
    - b) joining (2) the profiles end-to-end before inserting them into the device,
    - c) moving and guiding (4) the profiles in the device, before bending them,
    - d) bending (6) the profiles to form frames of predefined dimensions,
    - e) finishing (9) by sawing from the profiles the frames obtained in step d),
    - f) receiving (11) and storing the frames finished in step e),
    - characterised in that before bending step d), an additional step g) of positioning the first (16, 17) and second (23) variable-spacing members, which form the means for holding the shape of the profiles, on the internal and external faces of the profiles is carried out.
  7. The bending method according to claim 6, characterised in that during step g), the profile is positioned before the cheeks (16, 17) of the jaw forming the first holding member are closed on the external faces of the walls of the profile.
  8. The bending method according to claim 7, characterised in that, during step g), the second holding member (23) is positioned between the walls of the profile when said profile is held by the first member (16, 17).
  9. The method according to claim 6, characterised in that before step g), the fingers (27) forming the second shape-holding member (23) are spread apart against the inner faces of the walls of the profile.
EP18207959.0A 2017-12-06 2018-11-23 Device and method for bending wing metal profiles Active EP3495067B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL18207959T PL3495067T3 (en) 2017-12-06 2018-11-23 Device and method for bending wing metal profiles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1761724A FR3074434B1 (en) 2017-12-06 2017-12-06 INSTALLATION AND METHOD FOR FOLDING METAL SHEET PROFILES

Publications (2)

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EP3495067A1 EP3495067A1 (en) 2019-06-12
EP3495067B1 true EP3495067B1 (en) 2020-07-29

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EP18207959.0A Active EP3495067B1 (en) 2017-12-06 2018-11-23 Device and method for bending wing metal profiles

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EP (1) EP3495067B1 (en)
ES (1) ES2823486T3 (en)
FR (1) FR3074434B1 (en)
PL (1) PL3495067T3 (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO174376C (en) 1986-04-07 1994-04-27 Rjukan Metall As Apparatus for bending metal profiles
DE19839444C1 (en) * 1998-08-29 2000-01-05 Bayer Isolierglasfab Kg Bending metal-coated plastic hollow profile containing drying agent, forming double-glazing spacer frame
DE50100881D1 (en) * 2001-08-20 2003-12-04 Peter Lisec Method and device for bending hollow profile strips to form spacer frames for insulating glass panes
ITTV20130167A1 (en) * 2013-10-17 2015-04-18 Forel Spa AUTOMATIC MACHINE AND AUTOMATIC PROCEDURE FOR THE FOLDING AND BENDING OF THE SPACERS PROFILES FOR OBTAINING SPACER FRAMES FOR INSULATING GLASS.

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
PL3495067T3 (en) 2021-05-04
ES2823486T3 (en) 2021-05-07
FR3074434A1 (en) 2019-06-07
EP3495067A1 (en) 2019-06-12
FR3074434B1 (en) 2019-11-15

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