EP1121996B1 - Bending press for metal sheets - Google Patents

Bending press for metal sheets Download PDF

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Publication number
EP1121996B1
EP1121996B1 EP01400245A EP01400245A EP1121996B1 EP 1121996 B1 EP1121996 B1 EP 1121996B1 EP 01400245 A EP01400245 A EP 01400245A EP 01400245 A EP01400245 A EP 01400245A EP 1121996 B1 EP1121996 B1 EP 1121996B1
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EP
European Patent Office
Prior art keywords
machine
columns
metal sheets
fixed
parts
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EP01400245A
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German (de)
French (fr)
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EP1121996A2 (en
EP1121996A3 (en
Inventor
Inaki Xabier Aizpurua Zendoia
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Goiti SCL
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Goiti SCL
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Publication of EP1121996A3 publication Critical patent/EP1121996A3/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
    • B21D5/04—Bending sheet metal along straight lines, e.g. to form simple curves on brakes making use of clamping means on one side of the work

Definitions

  • a plurality of jacks which actuate the structures of support of the shaping elements.
  • These cylinders are aligned with each other along a theoretical line that is parallel to the longitudinal direction of the elements conformers and they act in the ascending direction.
  • the movable jaw is mounted on a support or a pressing carriage whose movement for fixing or the sheet is released by means of cylinders.
  • This arrangement increases the height dimension of the machine thus making its installation difficult to it requires high-rise premises ceiling.
  • the stems said jacks of the pressure carriage must pass through the support frame of the blade holders that bend the sheet and, since the rods rock in addition to move longitudinally, this double movement must be combined with the clean movement of the blade holders in the horizontal direction and with a tilt in a vertical plane, thus making it more difficult realization of the machine.
  • the cylinders move the pressure carriage and, with it, the jaw mobile, are arranged in the upper part of the support of this cart, in the same provision as in the patent of VOEST-ALPINE but, now, the bodies of the cylinders are connected to the pressure carriage and the rods to a beam fixed horizontal gantry, so that the thrust of rods of these cylinders is not transmitted directly to the pressing trolley but that it applies to the beam fixed gantry, so that the beam can not be move, there is a displacement of the body of jacks and, with this displacement, that of the pressure trolley who supports the movable jaw.
  • the machine can present in its upper part of dimensions similar to those of Salvagnini but without the cylinders must be special, long-stemmed, so that the machine wins in robustness.
  • these fixed columns can constitute the support control and / or adjustment means.
  • the movable jaw is composed of a central piece interchangeable and adaptable packages of parts associated, placed on the sides of said central piece, by forming a set that can be adapted according to the size of the sheets to bend.
  • Figure 1 shows a side elevational view of the machine according to the invention.
  • FIG. 2 is a plan view from above of the machine
  • Figure 3 shows the A-A section indicated on the figure 1.
  • Figure 4 shows the section B-B indicated on the figure 2.
  • FIG. 5 is a view like that of FIG. 4 but with the pressure carriage (16) raised.
  • Figure 6 shows the C-C cut indicated on the figure 2.
  • FIG. 7 is a view like that of FIG. but with the blade holders (3-6) lowered.
  • Figure 8 shows the D-D cut that is indicated on Figure 1.
  • FIG. 9 is a front view of the machine, where can recognize the arrangement of the parts loader central jaw mobile on the side of the machine, as well as the adapter mechanism of the side packs of said movable jaw.
  • FIG. 10 is a corresponding plan view of the object of the previous figure.
  • the object of the present invention is a machine folder of metal sheets which consists of a fixed frame (8) to which is integrally connected a jaw fixed (5) and to which is coupled, with the possibility of tilting, via hinge pins (14), a pressure carriage (16) which includes a jaw mobile (4) see Figures 1, 2 and 8.
  • vertical columns (2) which are at number of six columns (2) in the non-limiting example of practical embodiment shown in the accompanying figures, as seen in Figure 3, are arranged and integrally connected to the frame (8).
  • Columns (2) are the support of a beam horizontal gantry (1) extending across the width Folder (see Figures 3 and 8).
  • a beam horizontal gantry (1) extending across the width Folder (see Figures 3 and 8).
  • the rod (17.2) of a series of cylinders (17) whose body (17.1) is connected to the pressing carriage (16) by via an articulated joint (17.4).
  • the blade holders (3 and 6) of the machine are connected in a conventional way to frames (10) which are traversed by the columns (2).
  • Each armature (10) is connected via from an articulation pin (10.1) to an adjustment carriage (12) who is able to move by being guided to forward or backward, by rolling skates of guiding (11) on guides (7) arranged in the fixed frame (8).
  • each carriage (12) is rendered effective by the actuation of a horizontal folding cylinder (15) connected to the carriage (12) via the articulation (13) and the frame (8) by means of the articulation (14).
  • armatures (10) of the blade holders (3 and 6) are connected articulated way to the vertical folding cylinder rod (9) whose body is coupled to the fixed frame (8), also of articulated way; all this so that the actuation horizontal folding cylinders (15) leads to the guided horizontal movement, forwards or towards the rear of the trolleys (12) and, with them, that of blade holders (3 and 6); while the actuation of vertical bending cylinders (9) determines tilting ascending or descending blade holders (3 and 6), as can be seen in Figures 6 and 7.
  • the fixed frame (8) With this embodiment of the machine, the fixed frame (8), with the columns (2) and the horizontal beam (1), constitutes a structure of the type resistant single frame that looks like a big carcass and that gives a high robustness to the machine.
  • columns (2) have been have a circular cross section, polygonal, or the like.
  • the conformation of columns (2) to flat faces is the one that is appropriate to have on these columns (2) adjusting means and / or control that can act in relation to the movements blade holders (3 and 6), since the columns (2) always remain static.
  • the columns (2) are cylindrical, flat areas will be the columns (2) themselves or on inserts on these columns, for mounting such means of adjustment and control.
  • the movable jaw (4) is composite (see Figures 9 and 10) of a central piece (4.1) which is interchangeable, and associated parts packages (4.2) on the sides of said central piece (4.1), so that by incorporating central parts (4.1) of different dimensions and playing at the same time on the formation of side packs of parts (4.2), it is possible to adapt the machine to the size of the sheets to bend.
  • a loader (18) of the carousel type with which a robotic transfer device (19) is provided which takes on the magazine (18) the corresponding part (4.1) and depositing it on a carriage (20) which is driven by a rubber belt on a path that passes in front of the machine, for driving said workpiece (4.1) to the central portion, wherein a finger-based device (21) retractable, analogous to that possessed by the device transfer device (19), has said part (4.1) in the working position in the center of the jaw (4).
  • the arrangement of the magazine (18) on the side of the machine allows to operate it to prepare a new central part (4.1) which will be used later without disrupt the working capacity of the machine, so that said preparation of the central parts (4.1) can be done during the work of the machine without the latter does not have to stop, so we realize save time and therefore obtain a greater productivity; So far, the charger (18) provided for the replacement of central parts (4.1) was located at the front of the machine, which manipulations during operation, so that it was necessary to stop the machine during all the process of changing said pieces (4.1).
  • the parts (4.2) of the packages side of the jaw (4) are arranged in their mounting freely traversed by two bars (22) and (23) one of which (22) is fixed and acts as a guide sliding, while the other bar (23) is movable longitudinally and is associated with a cylinder of corresponding displacement (24).
  • Each of said parts (4.2) is furthermore connection, by means of conduits (25), with a solenoid valve which actuates a locking device on the bar (23), so that by selectively actuating the solenoid valves corresponding parts, the parts (4.2) required by relative to the aforesaid bar (23), the other pieces (4.2) of the remaining package free, so that by actuation respective cylinders (24), the drive of the parts (4.2) that are stuck on the bar (23) corresponding, bringing them to the position operational training of complementary packages on the sides of the center piece (4.1), according to the dimension that it is necessary to give to the jaw (4) in each case.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
  • Laminated Bodies (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Basic Packing Technique (AREA)

Abstract

Columns (2) support horizontal beam (1) that extends over whole length of folding machine. Stem (17.2) of series of actuators (17) is connected to beam using first elbow joint (17.3). Body of actuators (17.1) is attached to pressure trolley (16) using second elbow joint (17.4). When actuators are retracted, jaws (4, 5) are in contact with each other. When actuators are opening out, and because stem is attached to horizontal beam, center of articulation axis (17.3) has to stay at same height, and body of actuators can only travel in ascending direction, so as to tilt pressure trolley in same direction until trolley reaches its upper position, where jaws are separated from each other.

Description

Dans l'état de la technique des machines plieuses, on connaít le brevet US 2 552 616, dans lequel un presseur est monté sur un support qui est articulé à une base fixe et est actionné par des vérins.In the state of the art of folding machines, known from US Patent 2,552,616, in which a presser is mounted on a support that is articulated to a fixed base and is actuated by jacks.

Dans le brevet US 4 055 066, on décrit une machine qui est elle aussi destinée à plier des tôles métalliques en formant des angles. Cette machine présente ses éléments conformateurs disposés dans des structures reliées à une base fixe.In US Pat. No. 4,055,066 a machine is described. which is also intended to bend metal sheets forming angles. This machine presents its elements shapers arranged in structures connected to a fixed base.

A la base fixe, sont reliés de façon articulée une pluralité de vérins qui actionnent les structures de support des éléments conformateurs. Ces vérins sont alignés entre eux selon une ligne théorique qui est parallèle à la direction longitudinale des éléments conformateurs et ils agissent dans le sens ascendant.At the fixed base, are articulately connected a plurality of jacks which actuate the structures of support of the shaping elements. These cylinders are aligned with each other along a theoretical line that is parallel to the longitudinal direction of the elements conformers and they act in the ascending direction.

Dans une évolution ultérieure, on trouve le brevet US 4 783 984 de "VOEST-ALPINE" qui décrit une machine dont la conception générale de machine est conservée actuellement et qui est formée d'un banc fixe sur lequel est disposée une mâchoire fixe. La tôle à plier est saisie et fixée entre cette mâchoire fixe et une mâchoire mobile.In a later evolution, there is the US patent 4,783,984 of "VOEST-ALPINE" which describes a machine whose the general machine design is retained currently and which consists of a fixed bench on which is arranged a fixed jaw. The bending sheet is seized and fixed between this fixed jaw and a movable jaw.

La mâchoire mobile est montée sur un support ou un chariot presseur dont le mouvement pour la fixation ou le relâchement de la tôle s'effectue au moyen de vérins.The movable jaw is mounted on a support or a pressing carriage whose movement for fixing or the sheet is released by means of cylinders.

Dans le brevet de "VOEST ALPINE" les vérins qui actionnent le support de la mâchoire mobile ou le chariot presseur agissent dans le sens descendant, étant disposés en surplomb au-dessus du support de la mâchoire mobile.In the patent of "VOEST ALPINE" the cylinders which operate mobile jaw support or trolley pressing act in the downward direction, being arranged overhanging above the movable jaw support.

Cette disposition augmente la dimension en hauteur de la machine en rendant ainsi son installation difficile du fait qu'elle exige des locaux d'une grande hauteur de plafond. This arrangement increases the height dimension of the machine thus making its installation difficult to it requires high-rise premises ceiling.

Dans le brevet espagnol 2 005 534 de Salvagnini, la disposition des vérins qui actionnent le support de la mâchoire mobile ou le chariot presseur est inversée, de sorte que, maintenant, ils agissent dans le sens ascendant, le corps des vérins du chariot presseur étant placé dans la partie inférieure, les vérins étant reliés au banc fixe de façon articulée.In Spanish Patent 2,005,534 to Salvagnini, the arrangement of the cylinders that actuate the support of the jaw or the pressure carriage is reversed, from so that, now they act in the sense ascending, the body of the cylinders of the pressure carriage being placed in the lower part, the cylinders being connected to the fixed bench in an articulated manner.

Avec cette disposition, on résout le problème de l'occupation de l'espace dans la partie supérieure mais, maintenant, il se présente un grand inconvénient qui est la grande dimension longitudinale que doivent présenter les tiges des vérins du chariot presseur, ce qui, en supplément de la nécessité de recourir à des vérins spéciaux retire de la robustesse à la machine.With this provision, the problem of the occupation of space in the upper part but, now there is a great disadvantage that is the large longitudinal dimension that must be presented the rods of the cylinders of the pressure carriage, which, in supplement of the need to resort to jacks specials removes the robustness to the machine.

En supplément, avec cette disposition, les tiges desdits vérins du chariot presseur doivent traverser l'armature de support des porte-lames qui plient la tôle et, étant donné que les tiges basculent en supplément de se déplacer longitudinalement, ce double mouvement doit être conjugué avec le mouvement propre des porte-lames dans la direction horizontale et avec un basculement dans un plan vertical, en rendant ainsi plus difficile la réalisation de la machine.In addition, with this arrangement, the stems said jacks of the pressure carriage must pass through the support frame of the blade holders that bend the sheet and, since the rods rock in addition to move longitudinally, this double movement must be combined with the clean movement of the blade holders in the horizontal direction and with a tilt in a vertical plane, thus making it more difficult realization of the machine.

Dans la solution selon l'invention, les vérins qui déplacent le chariot presseur et, avec lui, la mâchoire mobile, sont disposés dans la partie supérieure du support de ce chariot, dans la même disposition que dans le brevet de VOEST-ALPINE mais, maintenant, les corps des vérins sont reliés au chariot presseur et les tiges à une poutre portique horizontale fixe, de sorte que la poussée des tiges de ces vérins ne se transmet pas directement au chariot presseur mais qu'elle s'applique à la poutre portique fixe, de sorte que, la poutre ne pouvant pas se déplacer, il se produit un déplacement du corps des vérins et, avec ce déplacement, celui du chariot presseur qui supporte la mâchoire mobile.In the solution according to the invention, the cylinders move the pressure carriage and, with it, the jaw mobile, are arranged in the upper part of the support of this cart, in the same provision as in the patent of VOEST-ALPINE but, now, the bodies of the cylinders are connected to the pressure carriage and the rods to a beam fixed horizontal gantry, so that the thrust of rods of these cylinders is not transmitted directly to the pressing trolley but that it applies to the beam fixed gantry, so that the beam can not be move, there is a displacement of the body of jacks and, with this displacement, that of the pressure trolley who supports the movable jaw.

De cette façon, la machine peut présenter dans sa partie supérieure des dimensions analogues à celles de Salvagnini mais sans que les vérins ne doivent être spéciaux, à longue tige, de sorte que la machine gagne en robustesse.In this way, the machine can present in its upper part of dimensions similar to those of Salvagnini but without the cylinders must be special, long-stemmed, so that the machine wins in robustness.

En supplément, maintenant, les tiges des vérins ne traversent pas les porte-lames, lesquels sont uniquement traversés par les colonnes de support de la poutre, colonnes qui, étant fixes et n'ayant aucun mouvement, n'ont pas de difficulté à passer à travers les porte-lames.In addition, now, the rods of the cylinders do not do not go through the blade holders, which are only crossed by the support columns of the beam, columns which, being fixed and having no movement, have no difficulty in passing through the blade holders.

Par ailleurs, on a prévu que ces colonnes fixes, grâce à leur état statique, peuvent constituer le support de moyens de contrôle et/ou de réglage. Par exemple, on a prévu de disposer sur ces colonnes des capteurs destinés à contrôler l'éventuel déplacement angulaire ou latéral du porte-lames pour éviter ainsi le grippage de son guidage.Moreover, it has been planned that these fixed columns, thanks to their static state, can constitute the support control and / or adjustment means. For example, we have planned to have on these columns sensors for check the possible angular or lateral displacement of the blade holder to prevent seizure of its guide.

Toutefois, surtout et ce qui constitue une caractéristique fondamentale de la présente invention, on a constaté que la disposition de la poutre horizontale et de ses colonnes d'appui donne à la machine une structure du type ossature résistante qui augmente sensiblement la robustesse de la machine.However, especially and what constitutes a fundamental feature of the present invention, found that the arrangement of the horizontal beam and of its support columns gives the machine a structure resistant frame type that significantly increases the robustness of the machine.

D'un autre côté, dans les machines plieuses de ce type, la mâchoire mobile est composée d'une pièce centrale interchangeable et de paquets adaptables de pièces associées, placés sur les côtés de ladite pièce centrale, en formant un ensemble qui peut être adapté en fonction de la dimension des tôles à plier.On the other hand, in the folding machines of this type, the movable jaw is composed of a central piece interchangeable and adaptable packages of parts associated, placed on the sides of said central piece, by forming a set that can be adapted according to the size of the sheets to bend.

Dans les machines connues, cet ensemble adaptable de la mâchoire mobile n'offre pas une solution d'automatisme adéquate, puisqu'elle contraint à arrêter la machine pour réaliser les opérations nécessaires à chaque changement d'adaptation.In known machines, this adaptable set of the mobile jaw does not offer a solution of automatism adequate, since it forces to stop the machine to perform the necessary operations for each change adaptation.

Selon la présente invention, on propose aussi une solution qui place le mécanisme de remplacement de la pièce centrale de la mâchoire mobile dans le côté de la machine avec un transport vers l'avant jusqu'à la position centrale ; de même qu'une disposition particulière pour adapter les paquets latéraux en permettant de réaliser toutes les opérations pour l'adaptation de la mâchoire mobile précitée de façon automatique, avec préparation des pièces centrales interchangeables dans le cours même du travail fonctionnel de la machine.According to the present invention, there is also provided a solution that places the replacement mechanism of the central piece of the movable jaw in the side of the machine with forward transport to position central; as well as a special provision for adapt the side packs to achieve all operations for the adaptation of the jaw aforementioned mobile phone automatically, with preparation of interchangeable central parts in the very course of functional work of the machine.

La figure 1 montre une vue en élévation de côté de la machine selon l'invention.Figure 1 shows a side elevational view of the machine according to the invention.

La figure 2 est une vue en plan de dessus de la machine ;FIG. 2 is a plan view from above of the machine;

la figure 3 montre la coupe A-A indiquée sur la figure 1.Figure 3 shows the A-A section indicated on the figure 1.

La figure 4 montre la section B-B indiquée sur la figure 2.Figure 4 shows the section B-B indicated on the figure 2.

La figure 5 est une vue comme celle de la figure 4 mais avec le chariot presseur (16) relevé.FIG. 5 is a view like that of FIG. 4 but with the pressure carriage (16) raised.

La figure 6 montre la coupe C-C indiquée sur la figure 2.Figure 6 shows the C-C cut indicated on the figure 2.

La figure 7 est une vue comme celle de la figure 6 mais avec les porte-lames (3-6) abaissés.FIG. 7 is a view like that of FIG. but with the blade holders (3-6) lowered.

La figure 8 montre la coupe D-D qui est indiquée sur la figure 1.Figure 8 shows the D-D cut that is indicated on Figure 1.

La figure 9 est une vue avant de la machine, où l'on peut reconnaítre la disposition du chargeur des pièces centrales de la mâchoire mobile sur le côté de la machine, ainsi que le mécanisme adaptateur des paquets latéraux de ladite mâchoire mobile.FIG. 9 is a front view of the machine, where can recognize the arrangement of the parts loader central jaw mobile on the side of the machine, as well as the adapter mechanism of the side packs of said movable jaw.

La figure 10 est une vue correspondante en plan de l'objet de la figure précédente. FIG. 10 is a corresponding plan view of the object of the previous figure.

L'objet de la présente invention est une machine plieuse de tôles métalliques qui est constituée par un bâti fixe (8) auquel est reliée solidairement une mâchoire fixe (5) et auquel est accouplé, avec possibilité de basculement, par l'intermédiaire d'axes d'articulation (14), un chariot presseur (16) qui comprend une mâchoire mobile (4) voir figures 1, 2 et 8.The object of the present invention is a machine folder of metal sheets which consists of a fixed frame (8) to which is integrally connected a jaw fixed (5) and to which is coupled, with the possibility of tilting, via hinge pins (14), a pressure carriage (16) which includes a jaw mobile (4) see Figures 1, 2 and 8.

De même, des colonnes verticales (2) qui sont au nombre de six colonnes (2) dans l'exemple non limitatif de réalisation pratique représenté sur les figures annexées, comme on le voit sur la figure 3, sont disposées et reliées solidairement au bâti (8).Similarly, vertical columns (2) which are at number of six columns (2) in the non-limiting example of practical embodiment shown in the accompanying figures, as seen in Figure 3, are arranged and integrally connected to the frame (8).

Les colonnes (2) sont le support d'une poutre portique horizontale (1) qui s'étend sur toute la largeur de la plieuse (voir figures 3 et 8). A cette poutre horizontale (1) s'accouple, au moyen d'un joint articulé (17.3), la tige (17.2) d'une série de vérins (17) dont le corps (17.1) est relié au chariot presseur (16) par l'intermédiaire d'un joint articulé (17.4).Columns (2) are the support of a beam horizontal gantry (1) extending across the width Folder (see Figures 3 and 8). To this beam horizontal (1) mates, by means of an articulated joint (17.3), the rod (17.2) of a series of cylinders (17) whose body (17.1) is connected to the pressing carriage (16) by via an articulated joint (17.4).

De cette façon, avec les vérins (17) en position rétractée, la mâchoire mobile (4) est en contact avec la mâchoire fixe (5), comme ceci est représenté sur les figures 1 et 4. Lorsque les vérins (17) commencent à se déployer, étant donné que leur tige (17.2) est reliée à la poutre horizontale (1), qui est fixe, le centre de l'axe d'articulation (17.3) doit rester en permanence à la même hauteur et le corps (17.1) des vérins (17) est contraint de se déplacer dans le sens ascendant, en faisant basculer le chariot presseur (16) dans le même sens jusqu'à atteindre la position haute du chariot presseur (16) dans laquelle les mâchoires (4 et 5) sont séparées l'une de l'autre, qui est la position représentée sur la figure 5.In this way, with the cylinders (17) in position retracted, the movable jaw (4) is in contact with the fixed jaw (5), as shown in Figures 1 and 4. When the cylinders (17) begin to deploy, since their rod (17.2) is connected to the horizontal beam (1), which is fixed, the center of the axis articulation (17.3) must remain permanently at the same height and the body (17.1) of the cylinders (17) is constrained to move in the upward direction, tilting the pressure carriage (16) in the same direction up to reach the high position of the presser carriage (16) in which the jaws (4 and 5) are separated one of the other, which is the position shown in Figure 5.

D'un autre côté, les porte-lames (3 et 6) de la machine sont reliés de façon classique à des armatures (10) qui sont traversées par les colonnes (2). On the other hand, the blade holders (3 and 6) of the machine are connected in a conventional way to frames (10) which are traversed by the columns (2).

Chaque armature (10) est reliée par l'intermédiaire d'une axe d'articulation (10.1) à un chariot de réglage (12) qui est capable de se déplacer en étant guidé vers l'avant ou vers l'arrière, par le roulement de patins de guidage (11) sur des guides (7) disposés dans le bâti fixe (8).Each armature (10) is connected via from an articulation pin (10.1) to an adjustment carriage (12) who is able to move by being guided to forward or backward, by rolling skates of guiding (11) on guides (7) arranged in the fixed frame (8).

Le déplacement de chaque chariot (12) est rendu effectif par l'actionnement d'un vérin plieur horizontal (15) relié au chariot (12) par l'intermédiaire de l'articulation (13) et au bâti (8) au moyen de l'articulation (14).The displacement of each carriage (12) is rendered effective by the actuation of a horizontal folding cylinder (15) connected to the carriage (12) via the articulation (13) and the frame (8) by means of the articulation (14).

D'autre part, et également de façon classique, les armatures (10) des porte-lames (3 et 6) sont reliées de façon articulée à la tige de vérins de pliage vertical (9) dont le corps est accouplé au bâti fixe (8), également de façon articulée; tout ceci de manière que l'actionnement des vérins de pliage horizontal (15) entraíne le déplacement horizontal guidé, vers l'avant ou vers l'arrière, des chariots (12) et, avec eux, celui des porte-lames (3 et 6) ; tandis que l'actionnement des vérins de pliage vertical (9) détermine le basculement ascendant ou descendant des porte-lames (3 et 6), comme on peut s'en rendre compte sur les figures 6 et 7.On the other hand, and also in a classic way, armatures (10) of the blade holders (3 and 6) are connected articulated way to the vertical folding cylinder rod (9) whose body is coupled to the fixed frame (8), also of articulated way; all this so that the actuation horizontal folding cylinders (15) leads to the guided horizontal movement, forwards or towards the rear of the trolleys (12) and, with them, that of blade holders (3 and 6); while the actuation of vertical bending cylinders (9) determines tilting ascending or descending blade holders (3 and 6), as can be seen in Figures 6 and 7.

Avec cette réalisation de la machine, le bâti fixe (8), avec les colonnes (2) et la poutre horizontale (1), constitue une structure du type ossature résistante unique qui ressemble à une grande carcasse et qui confère une grande robustesse à la machine.With this embodiment of the machine, the fixed frame (8), with the columns (2) and the horizontal beam (1), constitutes a structure of the type resistant single frame that looks like a big carcass and that gives a high robustness to the machine.

En outre, du fait que les vérins (17) qui mettent le chariot presseur (16) en mouvement dans la partie supérieure, sont disposés juste en juxtaposition sur le chariot (16), la tige (17.2) de ces vérins n'a pas à décrire un grand trajet, les vérins étant classiques.In addition, because the cylinders (17) which pressing carriage (16) moving in the part superior, are arranged just in juxtaposition on the trolley (16), the rod (17.2) of these cylinders does not have to describe a big trip, the cylinders being classic.

Il convient de signaler qu'en supplément, le montage particulier des vérins (17) du chariot presseur (16), en combinaison avec la présence de la poutre horizontale (1), a aussi pour effet que les vérins (17) n'ont pas à déborder d'une grande distance au-dessus de la partie supérieure de la machine, ce qui permet que la dimension en hauteur de la machine soit pratiquement égale à celle des machines qui présentaient les vérins d'actionnement du chariot presseur (16) dans la partie inférieure de la machine, sans augmenter son volume.It should be noted that in addition, the assembly particular of the jacks (17) of the presser carriage (16), combination with the presence of the horizontal beam (1), also has the effect that the cylinders (17) do not have to to overflow a great distance over the game superior of the machine, which allows the dimension in height of the machine is almost equal to that machines that had the actuating cylinders of the pressing carriage (16) in the lower part of the machine, without increasing its volume.

Il convient aussi de remarquer que les armatures (10) qui constituent le support des porte-lames (3 et 6) ne sont traversées que par les colonnes (2) et que, ces dernières étant fixes, il n'existe pas de problèmes d'incidence de ces armatures sur les mouvements des armatures (10) des porte-lames (3 et 6), compte tenu de la complexité de ces mouvements, qui combinent une trajectoire dans un plan horizontal avec le basculement dans un plan vertical.It should also be noted that the frames (10) which constitute the support of the blade holders (3 and 6) are traversed only by the columns (2) and that, these the last ones being fixed, there are no problems incidence of these frames on the movements of reinforcement (10) of the blade holders (3 and 6), taking into account the complexity of these movements, which combine a trajectory in a horizontal plane with tilting in a vertical plane.

Finalement, on a prévu que les colonnes (2) peuvent présenter une section transversale de contour circulaire, polygonal, ou analogue. La conformation des colonnes (2) à faces planes est celle qui est appropriée pour disposer sur ces colonnes (2) des moyens de réglage et/ou de contrôle qui peuvent agir en relation avec les mouvements des porte-lames (3 et 6), puisque les colonnes (2) restent toujours statiques. Dans le cas où les colonnes (2) sont cylindriques, on ménagera des zones méplates sur les colonnes (2) elles-mêmes ou sur des éléments rapportés sur ces colonnes, pour le montage de tels moyens de réglage et de contrôle.Finally, columns (2) have been have a circular cross section, polygonal, or the like. The conformation of columns (2) to flat faces is the one that is appropriate to have on these columns (2) adjusting means and / or control that can act in relation to the movements blade holders (3 and 6), since the columns (2) always remain static. In the case where the columns (2) are cylindrical, flat areas will be the columns (2) themselves or on inserts on these columns, for mounting such means of adjustment and control.

En ce sens, on a prévu de disposer sur les colonnes (2) des capteurs qui détectent l'éventuel déplacement angulaire ou latéral des porte-lames (3 ou 6) par rapport aux colonnes (2) au-delà de certaines limites préétablies, en évitant ainsi le grippage des chariots de réglage (12). In this sense, it is planned to have on the columns (2) sensors that detect the possible displacement angle or side of the blade holders (3 or 6) relative to in columns (2) beyond certain pre-established limits, thus avoiding seizing of the adjustment carriages (12).

De même, en tirant parti de la nature statique des colonnes (2) et du fait qu'elles sont disposées à travers les porte-lames (3 et 6), on peut disposer des moyens de réglage et de contrôle qui permettent par simple vision directe, de vérifier les paramètres de fonctionnement de la machine, en ce qui concerne les mouvements des porte-lames (3 et 6).Similarly, by taking advantage of the static nature of columns (2) and that they are arranged across the blade holders (3 and 6), the means of adjustment and control that allow by simple vision direct, check the operating parameters of the machine, with regard to the movements of the blade holders (3 and 6).

D'une façon classique, la mâchoire mobile (4) est composée (voir figures 9 et 10) d'une pièce centrale (4.1) qui est interchangeable, et de paquets de pièces associées (4.2) sur les côtés de ladite pièce centrale (4.1), de sorte qu'en incorporant des pièces centrales (4.1) de différentes dimensions et en jouant en même temps sur la formation des paquets latéraux de pièces (4.2), on peut adapter la machine à la dimension des tôles à plier.In a conventional manner, the movable jaw (4) is composite (see Figures 9 and 10) of a central piece (4.1) which is interchangeable, and associated parts packages (4.2) on the sides of said central piece (4.1), so that by incorporating central parts (4.1) of different dimensions and playing at the same time on the formation of side packs of parts (4.2), it is possible to adapt the machine to the size of the sheets to bend.

Pour le remplacement des pièces centrales (4.1), on dispose d'un chargeur (18) du type carrousel, avec lequel est prévu un dispositif de transfert robotisé (19) qui prend sur le chargeur (18) la pièce (4.1) correspondante et la dépose sur un chariot (20) qui est entraíné par une courroie en caoutchouc sur un trajet qui passe devant la machine, pour conduire ladite pièce (4.1) jusqu'à la partie centrale, où un dispositif (21) à base de doigts escamotables, analogue à celui que possède le dispositif de transfert (19), dispose ladite pièce (4.1) dans la position de travail, au centre de la mâchoire (4).For the replacement of the central parts (4.1), has a loader (18) of the carousel type, with which a robotic transfer device (19) is provided which takes on the magazine (18) the corresponding part (4.1) and depositing it on a carriage (20) which is driven by a rubber belt on a path that passes in front of the machine, for driving said workpiece (4.1) to the central portion, wherein a finger-based device (21) retractable, analogous to that possessed by the device transfer device (19), has said part (4.1) in the working position in the center of the jaw (4).

La disposition du chargeur (18) sur le côté de la machine permet de l'actionner pour préparer une nouvelle pièce centrale (4.1) qui sera utilisée ultérieurement sans perturber la capacité de travail de la machine, de sorte que ladite préparation des pièces centrales (4.1) peut s'effectuer pendant le travail de la machine sans que cette dernière ne doive s'arrêter, de sorte qu'on réalise une économie de temps et qu'on obtient par conséquent une plus grande productivité; Jusqu'à présent, le chargeur (18) prévu pour le remplacement des pièces centrales (4.1) était situé à l'avant de la machine, ce qui gênait les manipulations pendant le fonctionnement, de sorte qu'il était nécessaire d'arrêter la machine pendant tout le processus de changement desdites pièces (4.1).The arrangement of the magazine (18) on the side of the machine allows to operate it to prepare a new central part (4.1) which will be used later without disrupt the working capacity of the machine, so that said preparation of the central parts (4.1) can be done during the work of the machine without the latter does not have to stop, so we realize save time and therefore obtain a greater productivity; So far, the charger (18) provided for the replacement of central parts (4.1) was located at the front of the machine, which manipulations during operation, so that it was necessary to stop the machine during all the process of changing said pieces (4.1).

D'un autre côté, les pièces (4.2) des paquets latéraux de la mâchoire (4) sont disposées dans leur montage en étant traversées librement par deux barres (22) et (23) dont une (22) est fixe et joue le rôle d'un guide de coulissement, tandis que l'autre barre (23) est mobile longitudinalement et est associée à un vérin de déplacement correspondant (24).On the other hand, the parts (4.2) of the packages side of the jaw (4) are arranged in their mounting freely traversed by two bars (22) and (23) one of which (22) is fixed and acts as a guide sliding, while the other bar (23) is movable longitudinally and is associated with a cylinder of corresponding displacement (24).

Chacune desdites pièces (4.2) est en outre en liaison, au moyen de conduits (25), avec une électrovanne qui actionne un dispositif de blocage sur la barre (23), de sorte qu'en actionnant sélectivement les électrovannes correspondantes, on fixe les pièces (4.2) nécessaires par rapport à la barre (23) précitée, les autres pièces (4.2) du paquet restant libres, de sorte que, par actionnement des vérins (24) respectifs, on produit l'entraínement des pièces (4.2) qui sont bloquées sur la barre (23) correspondante, en les amenant jusqu'à la position opérationnelle de formation des paquets complémentaires sur les côtés de la pièce centrale (4.1), selon la dimension qu'il est nécessaire de donner à la mâchoire (4) dans chaque cas.Each of said parts (4.2) is furthermore connection, by means of conduits (25), with a solenoid valve which actuates a locking device on the bar (23), so that by selectively actuating the solenoid valves corresponding parts, the parts (4.2) required by relative to the aforesaid bar (23), the other pieces (4.2) of the remaining package free, so that by actuation respective cylinders (24), the drive of the parts (4.2) that are stuck on the bar (23) corresponding, bringing them to the position operational training of complementary packages on the sides of the center piece (4.1), according to the dimension that it is necessary to give to the jaw (4) in each case.

Claims (6)

  1. Bending machine for metal sheets, of the type of those which are formed by a fixed stand (8) on which the corresponding fixed jaw (5) is mounted and on which is articulated a tilting presser carriage (16) which comprises the movable jaw (4) composed of an interchangeable central part (4.1) and of adaptable lateral packages formed by associated parts (4.2), whilst the blade carriers (3 and 6) are arranged in reinforcements (10) articulated on adjusting carriages (12) actuated by horizontal bending jacks (15), whilst there are likewise vertical bending jacks (9) which extend between the stand (8) and the reinforcements (10) in order to cause the tilting of the latter, characterized in that the jacks (17) which cause the movement of the presser carriage (16) are arranged above the latter, their body (17.1) being coupled to the presser carriage (16) by means of an articulated joint (17.4), and their rod (17.2) being connected by means of another articulated joint (17.3) to a fixed and horizontal gantry beam (1) which extends over the entire width of the machine, above the blade carriers (3 and 6).
  2. Bending machine for metal sheets according to Claim 1, characterized in that the horizontal beam (1) is supported by vertical columns (2) which rest with their lowar end on the stand (3), the beam (1), the columns (2) and the stand (8) forming the resistant framework of the machine.
  3. Bending machine for metal sheets according to Claims 1 and 2, characterized in that the fixed columns (2) pass through the supporting reinforcements (10) of the blade carriers (3 and 6), so that, with the latter remaining static, there is provision for optionally arranging on them means of adjustment and/or of control relating to the position which the blade carriers (3 and 6) occupy during the work process.
  4. Bending machine for metal sheets according to Claims 1, 2 and 3, characterized in that the columns (2) may have a cross section of circular, polygonal or suchlike contour, while there is provision, in the event that the columns (2) are cylindrical and they comprise the abovementioned means of adjustment and of control, for the said columns to have flat surfaces, either in themselves or by means of attached elements, for mounting the said means of adjustment and of control.
  5. Bending machine for metal sheets according to Claim 1, characterized in that, in order to change the part (4.1) of the movable jaw (4), there is a mechanism formed from a loader (18) of the turntable type, which is located at the side of the machine, with a robotized device (19) for the transfer of the parts (4.1) between the loader (18) and a carriage (20) which can come as far as the functional position in the central part of the machine.
  6. Bending machine for metal sheets according to Claim 1, characterized in that the parts (4.2) of the lateral packages of the jaw (4) are incorporated, freely mounted on bars (22) and (23), of which one (22) is fixed and the other (23) can be displaced longitudinally by means of a corresponding actuating jack (24), each of the abovementioned parts (4.2) being connected to a solenoid valve actuating a device for locking on the bar (23), in order to make it possible selectively to form the packages with the number of parts (4.2) which are necessary in each case as a function of the dimension of the sheets to be bent.
EP01400245A 2000-01-31 2001-01-31 Bending press for metal sheets Expired - Lifetime EP1121996B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES200000188 2000-01-31
ES200000188A ES2190298B1 (en) 2000-01-31 2000-01-31 METAL SHEET FOLDING MACHINE.

Publications (3)

Publication Number Publication Date
EP1121996A2 EP1121996A2 (en) 2001-08-08
EP1121996A3 EP1121996A3 (en) 2003-07-02
EP1121996B1 true EP1121996B1 (en) 2005-12-28

Family

ID=8492092

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01400245A Expired - Lifetime EP1121996B1 (en) 2000-01-31 2001-01-31 Bending press for metal sheets

Country Status (6)

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EP (1) EP1121996B1 (en)
AT (1) ATE314164T1 (en)
DE (1) DE60116154T2 (en)
DK (1) DK1121996T3 (en)
ES (1) ES2190298B1 (en)
PT (1) PT1121996E (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2209594B1 (en) * 2002-01-29 2005-06-01 Goiti, S. Coop. AUTOMATIC PANELING MACHINE.
CA2525693A1 (en) * 2003-06-04 2004-12-16 Finn-Power Oy System for metering the bending angle in a machine for bending metallic sheets and/or sections, as well as method and machine for bending metallic sheets and/or sections using such system
ITVR20040110A1 (en) * 2004-06-29 2004-09-29 Finn Power Italia S R L MULTIFUNCTIONAL HYDRAULIC HEAD APPLICABLE ON SHAPING MACHINES AND BENDING MACHINES OF METAL SHEETS AND METAL PROFILES
PT1819457E (en) * 2004-10-22 2009-05-27 Finn Power Oy Kinematic system for the displacement of working units of machines for bending and forming metallic sheets
ES2397551T3 (en) 2008-05-30 2013-03-07 Goiti S. Coop. Paneling machine
IT1402956B1 (en) * 2010-12-10 2013-09-27 Xp Technology S R L PANEL MACHINE TOOL MACHINE WITH IMPROVED HANDLING OF THE PRE-EMPTYING DEVICE AND THE DISHWASHER DEVICE
CN103372586A (en) * 2012-04-28 2013-10-30 李向普 Novel numerical control bending machine
AT515280B1 (en) 2014-06-10 2015-08-15 Trumpf Maschinen Austria Gmbh Bending press with bending unit and method for forming
TR201703222A2 (en) * 2017-03-02 2017-07-21 Sente Maki̇na İnşaat Sanayi̇ Ve Ti̇caret Li̇mi̇ted Şi̇rketi̇ VENTILATION CHANNEL EDGE FLANGE METHOD AND A MACHINE USED FOR THIS METHOD
CN109291734B (en) * 2018-09-27 2024-02-09 南昌大学 Foldable tyre dismounting device
CN112207168A (en) * 2020-10-23 2021-01-12 南京邮电大学 Hemming beam driving mechanism of hemming machine
CN117299993B (en) * 2023-11-28 2024-02-20 河北富华专用汽车制造有限公司 Plate-shaped automobile part bending device

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT372883B (en) * 1981-10-09 1983-11-25 Voest Alpine Ag DEVICE FOR BENDING A PANEL
IT1204674B (en) * 1987-06-03 1989-03-10 Salvagnini Transferica Spa BENDING MACHINE FOR SHEETS WITH UNIFORM COMPRESSION PLATE
DE3826310A1 (en) * 1988-08-03 1990-02-08 Rolf Nagel BENDING DEVICE FOR PRODUCING SHEET BENDING
AT399113B (en) * 1992-01-17 1995-03-27 Aschauer Johann Bending machine with an upper tool situated on a bending rocker
JPH08164423A (en) * 1994-12-13 1996-06-25 Murata Mach Ltd Bending machine

Also Published As

Publication number Publication date
EP1121996A2 (en) 2001-08-08
PT1121996E (en) 2006-05-31
ES2190298A1 (en) 2003-07-16
ES2190298B1 (en) 2004-10-16
EP1121996A3 (en) 2003-07-02
ATE314164T1 (en) 2006-01-15
DK1121996T3 (en) 2006-05-08
DE60116154T2 (en) 2006-09-28
DE60116154D1 (en) 2006-02-02

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