EP0449681A1 - Device for feeding automatically blanks to a press or any other machine - Google Patents

Device for feeding automatically blanks to a press or any other machine Download PDF

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Publication number
EP0449681A1
EP0449681A1 EP91400537A EP91400537A EP0449681A1 EP 0449681 A1 EP0449681 A1 EP 0449681A1 EP 91400537 A EP91400537 A EP 91400537A EP 91400537 A EP91400537 A EP 91400537A EP 0449681 A1 EP0449681 A1 EP 0449681A1
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EP
European Patent Office
Prior art keywords
support
carriage
press
frame
rod
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP91400537A
Other languages
German (de)
French (fr)
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EP0449681B1 (en
Inventor
Pierre Tribouillois
René Michaut
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Automobiles Peugeot SA
Automobiles Citroen SA
Original Assignee
Automobiles Peugeot SA
Automobiles Citroen SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Automobiles Peugeot SA, Automobiles Citroen SA filed Critical Automobiles Peugeot SA
Publication of EP0449681A1 publication Critical patent/EP0449681A1/en
Application granted granted Critical
Publication of EP0449681B1 publication Critical patent/EP0449681B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
    • B21D43/02—Advancing work in relation to the stroke of the die or tool
    • B21D43/04—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work
    • B21D43/10—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work by grippers
    • B21D43/11—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work by grippers for feeding sheet or strip material
    • 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
    • B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
    • B21D43/20—Storage arrangements; Piling or unpiling
    • B21D43/24—Devices for removing sheets from a stack

Definitions

  • the present invention essentially relates to an apparatus for automatically feeding sheet blanks to any machine such as, for example, a press which may be a so-called "double-effect" press, that is to say a press which is used on the one hand to plate the sheet and on the other hand to deform it.
  • a press which may be a so-called "double-effect" press, that is to say a press which is used on the one hand to plate the sheet and on the other hand to deform it.
  • Devices have already been proposed for supplying sheet blanks of a press, which devices can be fixed to the press and generally comprise means capable of gripping a sheet placed on a holding support and then introduce this sheet into the press.
  • the present invention aims to remedy these drawbacks by proposing an automatic feeding device or sheet metal feeder for a press, which allows the press to work without stopping the punch, that is to say say to work "on the fly”, and this at high rates of the order of twenty to twenty-five strokes per minute, so that the performance of the press is significantly improved.
  • the subject of the invention is an apparatus for automatically feeding sheet blanks to any press or other machine, of the type intended for be fixed to the press and comprising means capable of gripping a sheet placed on a waiting support and then introducing this sheet into the press, characterized in that said means consist of at least one carriage provided with at least one sheet unstacking system which feeds said holding support in a coordinated and synchronous manner with the introduction of the sheets into the press by said carriage.
  • the unstacking system is mounted on the carriage at a place such that in the withdrawn position of the carriage, it is located in line with a stack of sheets while means for gripping a sheet integral with the carriage located at the stand, while in the advanced position of the carriage or the introduction of a sheet into the press, the unstacking system is located to the right of the stand.
  • the carriage is mounted displaceable in a reciprocating motion on a frame to which the waiting support is fixed in a movable and retractable manner when the said carriage moves back.
  • this waiting support is integral with a deformable frame mounted on a support fixed to the aforementioned frame.
  • the aforementioned deformable frame substantially forms an articulated parallelogram and deformable by means of a jack mounted on the aforementioned support.
  • the unstacking system comprises suction cups or other similar means integral with a support mounted vertically movable on a chassis and actuable by a jack fixed on said chassis itself itself optionally fixed adjustable on the trolley.
  • the carriage is driven in an alternative movement of translation on a guide rail integral with the frame, by means of an indexer-oscillator mounted on the frame, comprising an arm connected in an articulated manner to the carriage, and whose motion law is adapted to the press cycle.
  • the means for gripping a sheet on the waiting support are constituted by clamps arranged at one end of the carriage and controlled by a rod or the like actuated by means forming cam under the effect of the movement of the carriage relative to the frame.
  • the aforementioned means forming a cam are constituted, according to a preferred embodiment, by a substantially L-shaped part pivotally mounted on the carriage, one of the branches of which carries a finger, roller or the like engaged in a groove or cam path practiced in an element fixed on the frame, and the other branch of which is articulated on one of the ends of the aforementioned rod.
  • the other end of the rod is connected in an articulated manner to two supports which respectively carry gripper arms opposite, and which are rotatably mounted on a intermediate piece mounted adjustable on the carriage.
  • clamp arms are advantageously mounted adjustable on the two supports controlled by the rod so as to allow the spacing of the clamp arms to be adjusted as a function of the dimensions of the sheets to be gripped.
  • the length of the above-mentioned rod is adjustable by means of a connector constituted by a sheath articulated on the L-shaped part and in which said rod is telescopically mounted, by a socket mounted on said sheath , and by a nut co-operating with this socket and the rod and having a tapped orifice of diameter greater than that of the rod and capable of being released from the rod after unlocking and displacement of the sleeve relative to said sleeve, said rod being threaded at less at the connection.
  • the apparatus of this invention is further characterized by the fact that the aforesaid frame is mounted vertically sliding and adjustable on a support itself fixed on the press.
  • the frame is movable relative to the aforementioned support by means of a geared motor unit driving a ball screw and comprising a disc brake.
  • the frame can be held, in a determined position, against the aforementioned support by means of elastic arms forming levers articulated on the support and each controlled by cams, eccentric or the like actuated by jacks mounted articulated on the support.
  • Figure 1 and a perspective view of an automatic loading device of sheet blanks according to this invention, and fixed on a press shown very partially.
  • Figure 2 is an elevational and side view of the device in the position of introduction of a sheet in the press, that is to say in the advanced position of the carriage.
  • Figure 3 is a view similar to Figure 2, but showing the device in the retracted position of the carriage for gripping a sheet on a stack of sheets.
  • FIG. 4 is a plan view and from above of the apparatus fixed on the press, the carriage being in the retracted position, as in FIG. 3.
  • Figure 5 is a perspective view of the carriage.
  • Figure 6 is a schematic view of the clamps carried by one end of the carriage and shown in the open position and in the closed position.
  • Figure 7 is a schematic and plan view of a groove formed in a part fixed to the frame of the device and allowing, during the reciprocating movement of the carriage, the actuation of a rod controlling the clamps.
  • Figure 8 is a sectional view of a connector for adjusting the length of the rod to adjust the position of the clamps relative to the carriage.
  • Figure 9 is a perspective view of the unstacking system.
  • FIG. 10 is a perspective view of the waiting support fixed to the frame of the device.
  • an apparatus for automatically feeding or loading sheet blanks essentially comprises a frame 1 mounted vertically movable by a plate-shaped part 2 on a support 3 which is itself fixed by bolting for example, as seen in 4, on the front face 5 of a PR press.
  • the frame 1 supports a carriage 6 which in turn supports a system 7 for unstacking sheets and means 8 for gripping a sheet arranged at one end of the carriage 6.
  • a waiting support 9 which can be retracted when the carriage 6 moves back, as will be explained in detail below.
  • the carriage 6 can be driven by a substantially horizontal reciprocating translational movement on a guide rail 10 secured to the frame 1, and this thanks to an electromechanical indexer-oscillator of a type known per se which is generally identified at 11 and which is integral with the frame 1. More specifically, this indexer-oscillator 11 is provided with a swinging arm 12 hingedly connected at one end by means of a roller or the like 13 to the carriage 2 which can thus move back and forth on the rail 10. It will be observed that the indexer-oscillator 11 has a law of specific movement adapted to the operating cycle of the press, thanks to a cam (not shown) having a particular profile.
  • the unstacking system 7 integral with the carriage 6, comprises, as can be seen more clearly in FIG. 9, a plurality of suction cups 14 connected to a source of vacuum and pressure (not shown) by conduits in the form of coils 15, and carried by a support 16 having somewhat the shape of a frame.
  • This support 16 is mounted vertically movable on a chassis 17 which is itself fixed on the carriage 6.
  • a jack 18a is fixed on the chassis 17 and allows the vertical actuation of the support 16 carrying the suction cups 14 relative to said chassis integral with the carriage 6.
  • the chassis 17 comprises cross-members 18 with a T cross section which can be mounted in two parallel rails 19 integral with the carriage 6 (FIG. 5) so as to allow the adjustment, in the horizontal plane, of the unstacking system 7 before its final attachment to the carriage 6.
  • the means 8 for gripping a sheet on the waiting support 9 consist of clamps P arranged at one end of the carriage 6 and controlled by a rod T actuable by means forming a cam 20 under the effect of the movement of the carriage 6 relative to the frame 1.
  • clamps P are constituted by pairs of arms 21 opposite and respectively integral with two supports 22 which are each mounted in rotation, for example by means of knee pads (not visible in the figures), on a intermediate piece 23 mounted adjustable at the end of the carriage 6.
  • one of the ends of the rod T is connected in an articulated manner at 24 on the supports 22 so that a push of the rod T opens the clamps P, while qu 'a pull on this rod causes the closure of said clamps.
  • the cam means 20 are constituted by a part 25 substantially L-shaped pivotally mounted at 26 on the carriage 6.
  • One 27 of the branches of L carries a finger or roller 28 to one from its ends, which finger or roller is engaged in a groove forming a cam track 29 which is best seen in FIG. 7 and which is produced in a part 30 fixed to the frame 1 by legs or the like 31 clearly visible on Figure 5.
  • the other branch 32 of the L-shaped part 25 is articulated, as seen in 33, at the end of the rod T opposite to that capable of actuating in rotation the supports 22 of the clamps P , as described above.
  • the arms 21 of the clamps P are mounted laterally adjustable on their respective supports 22 so as to allow the spacing of said arms to be adjusted.
  • a connection has been provided for this purpose by dovetail and mortise tenon between the arms 21 and the supports 22, as seen in 34.
  • the length of the rod T is adjustable by means of a connector 35, and this so as to adjust the position of the clamps P relative to the carriage 6, depending on the dimension sheets to grab.
  • This connector 35 is essentially constituted by a sheath 39 in which the rod T is telescopically mounted, said sheath constituting the end of the rod which is articulated at 33 on the L-shaped part 25 pivotally mounted at 26 on the carriage 6.
  • a sleeve 36 is slidably mounted on the sleeve 39 and, in this sleeve, is slidably fitted a nut 37 having a threaded orifice 38 of diameter greater than that of the threaded rod T, as can be seen in FIG. 8. Otherwise said, the rod T is engaged and maintained only on a portion of the thread of the threaded orifice 38 of the nut 37.
  • a ring 61 slidably mounted on the sheath 39 and urged by at least one spring 62 allows the blocking or unblocking of the levers 60, as can be seen clearly in FIG. 8.
  • a lug has been shown at 65 which can be struggled in a groove 66 formed on the periphery of the sleeve 39, and we see at 67 a flange belonging to the sleeve 39 and forming an end-of-travel stop for the sleeve 36.
  • An annular part 68 is provided on the bush 36 in order to produce in particular a stop for the springs 62 urging the ring 61.
  • the levers 60 are unlocked, which allows the recoil to the right of FIG. 8 of the sleeve 36 on the sleeve 39 and this up to the stop 67.
  • the unlocking levers 60 is made after actuating the ring 61, against the force of the springs 62. It follows that the nut 37 is released from the sleeve 36 and can therefore be detached from the threaded rod T with which he was originally engaged in.
  • the rod T is then moved to the desired length, which allows the movement of the set of clamps P relative to the carriage 6 (FIG. 5), it being understood that the intermediate piece 23 on which the clamp supports 22 will pivot will be moved accordingly with respect to the carriage 6.
  • the waiting support 9 secured to the frame 1 and better visible in Figure 10 is secured to a deformable frame 40 itself connected to a support 41 fixed by its part 42 on the frame 1 of the device. More specifically, the deformable frame 40 is formed of a plurality of links constituting substantially an articulated parallelogram and deformable by means of a jack 43 mounted articulated on the support 41.
  • the standby support 9 can move in the manner of a swing with respect to the frame 1, as will be explained later in connection with operation.
  • the waiting support 9 comprises a plurality of horizontal pads 44 on which a sheet metal TO can rest.
  • magnets provided on some of these pads 44 for holding the sheet, it being understood that some of said pads can be mounted in an adjustable manner on the holding support 9.
  • the frame 1 of the device is movable relative to the support 3 fixed on the press PR thanks to a geared motor group 47 which drives a ball screw 48 and which is provided with a brake disc 49.
  • the frame 1 is mounted adjustable on the support 3 fixed to the press PR, and in this regard, it will be noted that the part or plate 2 belonging to this frame is mounted vertically sliding in rails 2a ( Figure 1) belonging to the support 3.
  • the frame 1 supporting the indexer-oscillator 11, the carriage 6 and its associated elements, as well as the standby support 9 is maintained, after adjustment in the vertical direction relative to the support 3, in a position determined against said support. To this end, as can be seen in FIGS.
  • elastic arms 50 forming levers are articulated at 51 on the support 3 and are each controlled by cams or eccentrics 52 secured to a shaft 53 (FIG. 1) actuated by jacks 54 (FIG. 4) mounted articulated on the support 3. More precisely, and as can be seen in FIG. 4, the body of the jacks 53 is articulated on the support 3 and the rods of this: jacks control the rotation cams or eccentrics 52 which cooperate with one of the ends of the arms 50, the other end of which can bear on the part or plate 2 of the frame 1, thereby securing the frame with the support 3 itself fixed on the face before 5 of the PR press.
  • the cycle start is given by an electrical signal from the PR press, and the following sequence of operations occurs.
  • the carriage 6, actuated by the indexer-oscillator 11 advances, as can be seen in FIG. 2, while the standby support 9 is always in the high position, contrary to what is shown in this figure, where said stand has been shown in the low position for clarity.
  • the clamps P close thanks to the means forming a cam 20 actuating the rod T and the sheet blank resting on the waiting support 9 in the high position is gripped on the fly.
  • the carriage 6 ends its forward stroke until the introduction of the sheet metal blank gripped by the clamps P into the press tool.
  • the unstacking system 7 which is located in line with the waiting support 9 still in the high position, will deposit a sheet blank on said waiting support.
  • the carriage 6 will move back and, simultaneously, the standby support 9 will move downward, as shown in FIG. 2 to allow passage to the carriage 6 which moves back and which will therefore not be able to interfere with the sheet metal blank previously deposited by the unstacking system 7 on said stand.
  • the carriage 6 ends its recoil stroke to return to the position shown in FIG. 3.
  • the unstacking system 7 will then look for a new sheet blank on the stack G, while the waiting support 9 returns to the high position visible in FIG. 3, so that the above sequence of operations begins again.

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Abstract

This device is intended to be fixed to the front face (5) of a press (PR) and comprises a carriage (6) which can be put into a reciprocating movement and fitted with a system (7) for taking metal sheets from a stack, which feeds a waiting support (9) in a coordinated manner and synchronously with the insertion of the metal sheets into the press (PR) by the carriage (6) which comprises, at its end, grippers (P) enabling a metal sheet on the waiting support (9) to be gripped while moving in order to insert it into the press (PR). This device may be adjustably fixed to a press called a double-action press. <IMAGE>

Description

La présente invention a essentiellement pour objet un appareil d'alimentation automatique en flans de tôle d'une machine quelconque telle que par exemple une presse qui peut être une presse dite "double-effet", c'est-à-dire une presse qui sert d'une part à plaquer la tôle et d'autre part à la déformer.The present invention essentially relates to an apparatus for automatically feeding sheet blanks to any machine such as, for example, a press which may be a so-called "double-effect" press, that is to say a press which is used on the one hand to plate the sheet and on the other hand to deform it.

On a déjà proposé des appareils d'alimentation en flans de tôle d'une presse, lesquels appareils peuvent être fixés sur la presse et comprennent, d'une manière générale, des moyens aptes à saisir une tôle placée sur un support d'attente et à introduire ensuite cette tôle dans la presse.Devices have already been proposed for supplying sheet blanks of a press, which devices can be fixed to the press and generally comprise means capable of gripping a sheet placed on a holding support and then introduce this sheet into the press.

Toutefois, ces appareils ne permettent pas de servir la presse avec une fiabilité suffisante et ne permettent pas à la presse de travailler à une cadence élevée.However, these devices do not allow the press to be served with sufficient reliability and do not allow the press to work at a high rate.

Aussi, la présente invention a pour but de remédier à ces inconvénients en proposant un appareil d'alimentation ou chargeur automatique en flans de tôle d'une presse, qui permet à la presse de travailler sans arrêt du poinçon, c'est-à-dire de travailler "à la volée", et cela à des cadences élevées de l'ordre de vingt à vingt-cinq coups par minute, de sorte que le rendement de la presse est nettement amélioré.Also, the present invention aims to remedy these drawbacks by proposing an automatic feeding device or sheet metal feeder for a press, which allows the press to work without stopping the punch, that is to say say to work "on the fly", and this at high rates of the order of twenty to twenty-five strokes per minute, so that the performance of the press is significantly improved.

A cet effet, l'invention a pour objet un appareil d'alimentation automatique en flans de tôle d'une presse ou autre machine quelconque, du type destiné à être fixé sur la presse et comprenant des moyens aptes à saisir une tôle placée sur un support d'attente et à introduire ensuite cette tôle dans la presse, caractérisé en ce que lesdits moyens sont constitués par au moins un chariot muni d'au moins un système de dépilage de tôles qui alimente ledit support d'attente de manière coordonnée et synchrone avec l'introduction des tôles dans la presse par ledit chariot.To this end, the subject of the invention is an apparatus for automatically feeding sheet blanks to any press or other machine, of the type intended for be fixed to the press and comprising means capable of gripping a sheet placed on a waiting support and then introducing this sheet into the press, characterized in that said means consist of at least one carriage provided with at least one sheet unstacking system which feeds said holding support in a coordinated and synchronous manner with the introduction of the sheets into the press by said carriage.

On précisera ici que le système de dépilage est monté sur le chariot à un endroit tel qu'en position reculée du chariot, il se trouve au droit d'une pile de tôles alors que des moyens de préhension d'une tôle solidaires du chariot se situent au niveau du support d'attente, tandis qu'en position avancée du chariot ou d'introduction d'une tôle dans la presse, le système de dépilage se trouve au droit du support d'attente.It will be specified here that the unstacking system is mounted on the carriage at a place such that in the withdrawn position of the carriage, it is located in line with a stack of sheets while means for gripping a sheet integral with the carriage located at the stand, while in the advanced position of the carriage or the introduction of a sheet into the press, the unstacking system is located to the right of the stand.

Suivant une autre caractéristique de cet appareil, le chariot est monté déplaçable suivant un mouvement alternatif sur un bâti auquel est fixé le support d'attente de façon mobile et escamotable lors du recul dudit chariot.According to another characteristic of this device, the carriage is mounted displaceable in a reciprocating motion on a frame to which the waiting support is fixed in a movable and retractable manner when the said carriage moves back.

Suivant encore une autre caractéristique de l'invention, ce support d'attente est solidaire d'un cadre déformable monté sur un support fixé au bâti précité.According to yet another characteristic of the invention, this waiting support is integral with a deformable frame mounted on a support fixed to the aforementioned frame.

Le cadre déformable précité forme sensiblement un parallélogramme articulé et déformable au moyen d'un vérin monté sur le support précité.The aforementioned deformable frame substantially forms an articulated parallelogram and deformable by means of a jack mounted on the aforementioned support.

Selon une autre caractéristique de l'appareil de cette invention, le système de dépilage comprend des ventouses ou autres moyens analogues solidaires d'un support monté verticalement mobile sur un châssis et actionnable par un vérin fixé sur ledit châssis lui-même fixé de manière éventuellement réglable sur le chariot.According to another characteristic of the apparatus of this invention, the unstacking system comprises suction cups or other similar means integral with a support mounted vertically movable on a chassis and actuable by a jack fixed on said chassis itself itself optionally fixed adjustable on the trolley.

Suivant une autre caractéristique de l'invention, le chariot est animé d'un mouvement alternatif de translation sur un rail de guidage solidaire du bâti, au moyen d'un indexeur-oscillateur monté sur le bâti, comportant un bras relié de façon articulée au chariot, et dont la loi de mouvement est adaptée au cycle de la presse.According to another characteristic of the invention, the carriage is driven in an alternative movement of translation on a guide rail integral with the frame, by means of an indexer-oscillator mounted on the frame, comprising an arm connected in an articulated manner to the carriage, and whose motion law is adapted to the press cycle.

On précisera encore ici que suivant l'invention, les moyens de préhension d'une tôle sur le support d'attente sont constitués par des pinces agencées à l'une des extrémités du chariot et commandées par une tringle ou analogue actionnable par des moyens formant came sous l'effet du déplacement du chariot par rapport au bâti.It will also be specified here that according to the invention, the means for gripping a sheet on the waiting support are constituted by clamps arranged at one end of the carriage and controlled by a rod or the like actuated by means forming cam under the effect of the movement of the carriage relative to the frame.

Les moyens précités formant came sont constitués, suivant un mode de réalisation préféré, par une pièce sensiblement en forme de L monté pivotant sur le chariot, dont l'une des branches porte un doigt, galet ou analogue engagé dans une rainure ou chemin de came pratiqué dans un élément fixé sur le bâti, et dont l'autre branche est articulée sur l'une des extrémités de la tringle précitée.The aforementioned means forming a cam are constituted, according to a preferred embodiment, by a substantially L-shaped part pivotally mounted on the carriage, one of the branches of which carries a finger, roller or the like engaged in a groove or cam path practiced in an element fixed on the frame, and the other branch of which is articulated on one of the ends of the aforementioned rod.

Suivant une autre caractéristique de l'appareil selon l'invention, l'autre extrémité de la tringle est reliée de façon articulée à deux supports qui portent respectivement des bras de pince en vis-à-vis, et qui sont montés à rotation sur une pièce intermédiaire montée réglable sur le chariot.According to another characteristic of the apparatus according to the invention, the other end of the rod is connected in an articulated manner to two supports which respectively carry gripper arms opposite, and which are rotatably mounted on a intermediate piece mounted adjustable on the carriage.

On observera que les bras de pince précités sont avantageusement montés réglables sur les deux supports commandés par la tringle de façon à permettre le réglage de l'écartement des bras de pince en fonction des dimensions des tôles à saisir.It will be observed that the above-mentioned clamp arms are advantageously mounted adjustable on the two supports controlled by the rod so as to allow the spacing of the clamp arms to be adjusted as a function of the dimensions of the sheets to be gripped.

Suivant encore une autre caractéristique de l'invention, la longueur de la tringle précitée est réglable au moyen d'un raccord constitué par un fourreau articulé sur la pièce en L et dans lequel est télescopiquement monté ladite tringle, par une douille montée sur ledit fourreau, et par un écrou cooopérant avec cette douille et la tringle et possédant un orifice taraudé de diamètre supérieur à celui de la tringle et susceptible de se dégager de la tringle après déverrouillage et déplacement de la douille par rapport audit fourreau, ladite tringle étant filetée au moins au niveau du raccord.According to yet another characteristic of the invention, the length of the above-mentioned rod is adjustable by means of a connector constituted by a sheath articulated on the L-shaped part and in which said rod is telescopically mounted, by a socket mounted on said sheath , and by a nut co-operating with this socket and the rod and having a tapped orifice of diameter greater than that of the rod and capable of being released from the rod after unlocking and displacement of the sleeve relative to said sleeve, said rod being threaded at less at the connection.

L'appareil de cette invention est encore caractérisé par le fait que le bâti précité est monté verticalement coulissant et réglable sur un support lui-même fixé sur la presse.The apparatus of this invention is further characterized by the fact that the aforesaid frame is mounted vertically sliding and adjustable on a support itself fixed on the press.

On observera que le bâti est déplaçable par rapport au support précité au moyen d'un groupe moto-réducteur entraînant une vis à billes et comportant un frein à disque.It will be observed that the frame is movable relative to the aforementioned support by means of a geared motor unit driving a ball screw and comprising a disc brake.

Le bâti pourra être maintenu, dans une position déterminée, contre le support précité au moyen de bras élastiques formant leviers articulés sur le support et commandés chacun par des cames, excentriques ou analogues actionnés par des vérins montés articulés sur le support.The frame can be held, in a determined position, against the aforementioned support by means of elastic arms forming levers articulated on the support and each controlled by cams, eccentric or the like actuated by jacks mounted articulated on the support.

On obtiendra ainsi un positionnement fiable et précis de l'appareil de chargement par rapport à la presse sur laquelle il est fixé, de sorte que l'introduction des tôles saisies par les pinces du chariot dans la presse s'effectuera avec une excellente fiabilité.This will give a reliable and precise positioning of the loading device relative to the press on which it is fixed, so that the introduction of the sheets gripped by the clamps of the carriage in the press will be carried out with excellent reliability.

Mais d'autres avantages et caractéristiques de l'invention apparaîtront plus clairement dans la description détaillée qui suit et se réfère aux dessins annexés, donnés uniquement à titre d'exemple et dans lesquels.However, other advantages and characteristics of the invention will appear more clearly in the detailed description which follows and refers to the appended drawings, given only by way of example and in which.

La figure 1 et une vue en perspective d'un appareil de chargement automatique de flans de tôle selon cette invention, et fixé sur une presse représentée très partiellement.Figure 1 and a perspective view of an automatic loading device of sheet blanks according to this invention, and fixed on a press shown very partially.

La figure 2 est une vue en élévation et de côté de l'appareil en position d'introduction d'une tôle dans la presse, c'est-à-dire en position avancée du chariot.Figure 2 is an elevational and side view of the device in the position of introduction of a sheet in the press, that is to say in the advanced position of the carriage.

La figure 3 est une vue similaire à la figure 2, mais montrant l'appareil en position reculée du chariot permettant la saisie d'une tôle sur une pile de tôles.Figure 3 is a view similar to Figure 2, but showing the device in the retracted position of the carriage for gripping a sheet on a stack of sheets.

La figure 4 est une vue en plan et de dessus de l'appareil fixé sur la presse, le chariot étant en position reculée, comme dans la figure 3.FIG. 4 is a plan view and from above of the apparatus fixed on the press, the carriage being in the retracted position, as in FIG. 3.

La figure 5 est une vue en perspective du chariot.Figure 5 is a perspective view of the carriage.

La figure 6 est une vue schématique des pinces portées par une extrémité du chariot et représentées en position ouverte et en position fermée.Figure 6 is a schematic view of the clamps carried by one end of the carriage and shown in the open position and in the closed position.

La figure 7 est une vue schématique et en plan d'une rainure pratiquée dans une pièce fixée sur le bâti de l'appareil et permettant, lors du mouvement alternatif du chariot, l'actionnement d'une tringle commandant les pinces.Figure 7 is a schematic and plan view of a groove formed in a part fixed to the frame of the device and allowing, during the reciprocating movement of the carriage, the actuation of a rod controlling the clamps.

La figure 8 est une vue en coupe d'un raccord permettant le réglage de la longueur de la tringle pour ajuster la position des pinces par rapport au chariot.Figure 8 is a sectional view of a connector for adjusting the length of the rod to adjust the position of the clamps relative to the carriage.

La figure 9 est une vue en perspective du système de dépilage.Figure 9 is a perspective view of the unstacking system.

La figure 10 est une vue en perspective du support d'attente fixé sur le bâti de l'appareil.FIG. 10 is a perspective view of the waiting support fixed to the frame of the device.

En se reportant notamment aux figures 1 à 4, et suivant un exemple de réalisation, un appareil d'alimentation ou de chargement automatique de flans de tôle conforme à cette invention comprend essentiellement un bâti 1 monté verticalement mobile par une partie en forme de plaque 2 sur un support 3 qui est lui-même fixé par boulonnage par exemple, comme on le voit en 4, sur la face avant 5 d'une presse PR.Referring in particular to FIGS. 1 to 4, and according to an exemplary embodiment, an apparatus for automatically feeding or loading sheet blanks according to this invention essentially comprises a frame 1 mounted vertically movable by a plate-shaped part 2 on a support 3 which is itself fixed by bolting for example, as seen in 4, on the front face 5 of a PR press.

On voit en E sur la figure 4 des éléments constituant le socle de la presse PR, et on voit sur cette même figure les positions successives d'un flan de tôle TO à introduire dans la presse PR par une ouverture O prévue sur la face avant 5 de ladite presse, à l'aide de l'appareil de chargement selon cette invention. Le bâti 1, comme on le voit sur les figures 1 à 4, supporte un chariot 6 qui supporte à son tour un système 7 de dépilage de tôles et des moyens 8 de préhension d'une tôle agencés à l'une des extrémités du chariot 6. Sur le bâti 1 de l'appareil est fixé de façon mobile à la manière d'une balançoire, un support d'attente 9 qui peut s'escamoter lorsque le chariot 6 recule, comme on l'expliquera en détail plus loin à propos du fonctionnement.We see at E in FIG. 4 elements constituting the base of the PR press, and we see on this same figure the successive positions of a sheet blank TO to be introduced into the PR press through an opening O provided on the front face 5 of said press, using the loading apparatus according to this invention. The frame 1, as seen in FIGS. 1 to 4, supports a carriage 6 which in turn supports a system 7 for unstacking sheets and means 8 for gripping a sheet arranged at one end of the carriage 6. On the frame 1 of the device is fixed movably in the manner of a swing, a waiting support 9 which can be retracted when the carriage 6 moves back, as will be explained in detail below. About the operation.

Comme il apparaît clairement sur les figures 1 à 3, le chariot 6 peut être animé d'un mouvement alternatif de translation sensiblement horizontal sur un rail de guidage 10 solidaire du bâti 1, et cela grâce à un indexeur-oscillateur électromécanique d'un type connu en soi qui est repéré d'une manière générale en 11 et qui est solidaire du bâti 1. Plus précisément, cet indexeur-oscillateur 11 est muni d'un bras oscillant 12 relié de façon articulée à une extrémité par l'intermédiaire d'un galet ou analogue 13 au chariot 2 qui peut ainsi effectuer un mouvement de va-et-vient sur le rail 10. On observera que l'indexeur-oscillateur 11 possède une loi de mouvement spécifique et adaptée au cycle de fonctionnement de la presse, et cela grâce à une came (non représentée) ayant un profil particulier.As it clearly appears in FIGS. 1 to 3, the carriage 6 can be driven by a substantially horizontal reciprocating translational movement on a guide rail 10 secured to the frame 1, and this thanks to an electromechanical indexer-oscillator of a type known per se which is generally identified at 11 and which is integral with the frame 1. More specifically, this indexer-oscillator 11 is provided with a swinging arm 12 hingedly connected at one end by means of a roller or the like 13 to the carriage 2 which can thus move back and forth on the rail 10. It will be observed that the indexer-oscillator 11 has a law of specific movement adapted to the operating cycle of the press, thanks to a cam (not shown) having a particular profile.

Le système de dépilage 7 solidaire du chariot 6, comprend, comme on le voit mieux sur la figure 9, une pluralité de ventouses 14 raccordées à une source de dépression et de pression (non représentée) par des conduits en forme de serpentins 15, et portées par un support 16 présentant quelque peu la forme d'un cadre. Ce support 16 est monté verticalement mobile sur un châssis 17 qui est lui-même fixé sur le chariot 6. Un vérin 18a est fixé sur le châssis 17 et permet l'actionnement vertical du support 16 portant les ventouses 14 par rapport audit châssis solidaire du chariot 6. Plus précisément, et comme on le voit bien sur les figures 5 et 9, le châssis 17 comporte des traverses 18 à section transversale en T pouvant être montées dans deux rails parallèles 19 solidaires du chariot 6 (figure 5) pour ainsi permettre le réglage, dans le plan horizontal, du système de dépilage 7 avant sa solidarisation définitive sur le chariot 6.The unstacking system 7 integral with the carriage 6, comprises, as can be seen more clearly in FIG. 9, a plurality of suction cups 14 connected to a source of vacuum and pressure (not shown) by conduits in the form of coils 15, and carried by a support 16 having somewhat the shape of a frame. This support 16 is mounted vertically movable on a chassis 17 which is itself fixed on the carriage 6. A jack 18a is fixed on the chassis 17 and allows the vertical actuation of the support 16 carrying the suction cups 14 relative to said chassis integral with the carriage 6. More precisely, and as can be seen in FIGS. 5 and 9, the chassis 17 comprises cross-members 18 with a T cross section which can be mounted in two parallel rails 19 integral with the carriage 6 (FIG. 5) so as to allow the adjustment, in the horizontal plane, of the unstacking system 7 before its final attachment to the carriage 6.

Comme il apparaît clairement sur la figure 5, les moyens 8 de préhension d'une tôle sur le support d'attente 9 qui sera décrit plus loin, sont constitués par des pinces P agencées à l'une des extrémités du chariot 6 et commandées par une tringle T actionnable par des moyens formant came 20 sous l'effet du déplacement du chariot 6 par rapport au bâti 1.As it clearly appears in FIG. 5, the means 8 for gripping a sheet on the waiting support 9 which will be described later, consist of clamps P arranged at one end of the carriage 6 and controlled by a rod T actuable by means forming a cam 20 under the effect of the movement of the carriage 6 relative to the frame 1.

Plus précisément, les pinces P sont constituées par des paires de bras 21 en vis-à-vis et respectivement solidaires de deux supports 22 qui sont chacun montés à rotation, par exemple au moyen de genouillères (non visibles sur les figures), sur une pièce intermédiaire 23 montée réglable à l'extrémité du chariot 6.More specifically, the clamps P are constituted by pairs of arms 21 opposite and respectively integral with two supports 22 which are each mounted in rotation, for example by means of knee pads (not visible in the figures), on a intermediate piece 23 mounted adjustable at the end of the carriage 6.

Comme on le voit bien sur le schéma de la figure 6, l'une des extrémités de la tringle T est reliée de façon articulée en 24 sur les supports 22 de façon qu'une poussée de la tringle T ouvre les pinces P, alors qu'une traction sur cette tringle provoque la fermeture desdites pinces.As can be clearly seen in the diagram in FIG. 6, one of the ends of the rod T is connected in an articulated manner at 24 on the supports 22 so that a push of the rod T opens the clamps P, while qu 'a pull on this rod causes the closure of said clamps.

Revenant à la figure 5, on voit que certains bras de pince 21 comportent des évidements 25 rendant ces bras quelque peu élastiques pour faciliter le serrage sur la tôle TO à saisir sur le support d'attente 9.Returning to FIG. 5, it can be seen that certain clamp arms 21 have recesses 25 making these arms somewhat elastic to facilitate tightening on the sheet metal TO be grasped on the waiting support 9.

On voit sur la figure 5 que les moyens formant came 20 sont constitués par une pièce 25 sensiblement en forme de L monté pivotant en 26 sur le chariot 6. L'une 27 des branches du L porte un doigt ou galet 28 à l'une de ses extrémités, lequel doigt ou galet est engagé dans une rainure formant chemin de came 29 que l'on voit mieux sur la figure 7 et qui est réalisée dans une pièce 30 fixée sur le bâti 1 par des jambes ou analogues 31 bien visibles sur la figure 5. L'autre branche 32 de la pièce 25 en forme de L est articulée, comme on le voit en 33, à l'extrémité de la tringle T opposée à celle susceptible d'actionner en rotation les supports 22 des pinces P, comme on l'a décrit précédemment.We see in Figure 5 that the cam means 20 are constituted by a part 25 substantially L-shaped pivotally mounted at 26 on the carriage 6. One 27 of the branches of L carries a finger or roller 28 to one from its ends, which finger or roller is engaged in a groove forming a cam track 29 which is best seen in FIG. 7 and which is produced in a part 30 fixed to the frame 1 by legs or the like 31 clearly visible on Figure 5. The other branch 32 of the L-shaped part 25 is articulated, as seen in 33, at the end of the rod T opposite to that capable of actuating in rotation the supports 22 of the clamps P , as described above.

A cet égard, on observera que les bras 21 des pinces P sont montés réglables latéralement sur leurs supports respectifs 22 de façon à permettre le réglage de l'écartement desdits bras. Comme il apparaît clairement sur la figure 5, on a prévu à cet effet une liaison par tenon en queue d'aronde et mortaise entre les bras 21 et les supports 22, comme on le voit en 34.In this regard, it will be observed that the arms 21 of the clamps P are mounted laterally adjustable on their respective supports 22 so as to allow the spacing of said arms to be adjusted. As it clearly appears in FIG. 5, a connection has been provided for this purpose by dovetail and mortise tenon between the arms 21 and the supports 22, as seen in 34.

Comme cela est bien visible sur les figures 5 et 8, la longueur de la tringle T est réglable au moyen d'un raccord 35, et cela de façon à ajuster la position des pinces P par rapport au chariot 6, en fonction de la dimension des tôles à saisir.As is clearly visible in Figures 5 and 8, the length of the rod T is adjustable by means of a connector 35, and this so as to adjust the position of the clamps P relative to the carriage 6, depending on the dimension sheets to grab.

Ce raccord 35 est essentiellement constitué par un fourreau 39 dans lequel est télescopiquement monté la tringle T, ledit fourreau constituant l'extrémité de la tringle qui est articulée en 33 sur la pièce en forme de L 25 monté pivotant en 26 sur le chariot 6. Une douille 36 est montée coulissante sur le fourreau 39 et, dans cette douille, est emmanché à coulissement un écrou 37 possédant un orifice taraudé 38 de diamètre supérieur à celui de la tringle filetée T, comme on le voit bien sur la figure 8. Autrement dit, la tringle T n'est en prise et maintenue que sur une portion du filetage de l'orifice taraudé 38 de l'écrou 37. Sur la douille 36 sont montés articulés des leviers 60 permettant le verrouillage de ladite douille sur le fourreau 39. Une bague 61 montée à coulissement sur le fourreau 39 et sollicitée par au moins un ressort 62 permet le blocage ou le déblocage des leviers 60, comme on le voit bien sur la figure 8. On voit encore en 63 un manchon traversé par la tringle T et maintenu par un support 64 solidaire du chariot 6. On a montré en 65 un ergot pouvant se débattre dans une rainure 66 pratiquée sur la périphérie du fourreau 39, et on voit en 67 une collerette appartenant au fourreau 39 et formant butée de fin de course pour la douille 36. Une pièce annulaire 68 est prévue sur la douille 36 pour réaliser notamment une butée pour les ressorts 62 sollicitant la bague 61.This connector 35 is essentially constituted by a sheath 39 in which the rod T is telescopically mounted, said sheath constituting the end of the rod which is articulated at 33 on the L-shaped part 25 pivotally mounted at 26 on the carriage 6. A sleeve 36 is slidably mounted on the sleeve 39 and, in this sleeve, is slidably fitted a nut 37 having a threaded orifice 38 of diameter greater than that of the threaded rod T, as can be seen in FIG. 8. Otherwise said, the rod T is engaged and maintained only on a portion of the thread of the threaded orifice 38 of the nut 37. On the sleeve 36 are articulated levers 60 allowing the locking of said sleeve on the sleeve 39 A ring 61 slidably mounted on the sheath 39 and urged by at least one spring 62 allows the blocking or unblocking of the levers 60, as can be seen clearly in FIG. 8. We also see at 63 a sleeve tr showered by the rod T and held in place by a support 64 integral with the carriage 6. A lug has been shown at 65 which can be struggled in a groove 66 formed on the periphery of the sleeve 39, and we see at 67 a flange belonging to the sleeve 39 and forming an end-of-travel stop for the sleeve 36. An annular part 68 is provided on the bush 36 in order to produce in particular a stop for the springs 62 urging the ring 61.

Ainsi, pour effectuer le réglage de la tringle T on déverrouille les leviers 60, ce qui permet le recul vers la droite de la figure 8 de la douille 36 sur le fourreau 39 et cela jusqu'à la butée 67. Bien évidemment, le déverrouillage des leviers 60 est effectué après avoir actionné la bague 61, à l'encontre de la force des ressorts 62. Il s'ensuit que l'écrou 37 est dégagé de la douille 36 et peut par conséquent être désolidarisé de la tringle filetée T avec laquelle il était primitivement en prise. On déplace alors la tringle T à la longueur voulue, ce qui permet le déplacement de l'ensemble des pinces P par rapport au chariot 6 (figure 5) étant bien entendu que la pièce intermédiaire 23 sur laquelle pivotent les supports de pinces 22 sera déplacée en conséquence par rapport au chariot 6. Une fois le réglage effectué, on remet l'écrou 37 en place sur la tringle T, et on ramène la douille 36 sur cet écrou par coulissement sur celui-ci, puis on verrouille ladite douille sur le fourreau avec les leviers 60, comme on le voit sur la figure 8.Thus, to carry out the adjustment of the rod T, the levers 60 are unlocked, which allows the recoil to the right of FIG. 8 of the sleeve 36 on the sleeve 39 and this up to the stop 67. Obviously, the unlocking levers 60 is made after actuating the ring 61, against the force of the springs 62. It follows that the nut 37 is released from the sleeve 36 and can therefore be detached from the threaded rod T with which he was originally engaged in. The rod T is then moved to the desired length, which allows the movement of the set of clamps P relative to the carriage 6 (FIG. 5), it being understood that the intermediate piece 23 on which the clamp supports 22 will pivot will be moved accordingly with respect to the carriage 6. Once the adjustment has been made, the nut 37 is replaced on the rod T, and the sleeve 36 is brought back onto this nut by sliding thereon, then the said sleeve is locked on the sheath with the levers 60, as seen in FIG. 8.

Le support d'attente 9 solidaire du bâti 1 et mieux visible sur la figure 10 est solidaire d'un cadre déformable 40 lui-même relié à un support 41 fixé par sa partie 42 sur le bâti 1 de l'appareil. Plus précisément, le cadre déformable 40 est formé d'une pluralité de biellettes constituant sensiblement un parallélogramme articulé et déformable au moyen d'un vérin 43 monté articulé sur le support 41.The waiting support 9 secured to the frame 1 and better visible in Figure 10 is secured to a deformable frame 40 itself connected to a support 41 fixed by its part 42 on the frame 1 of the device. More specifically, the deformable frame 40 is formed of a plurality of links constituting substantially an articulated parallelogram and deformable by means of a jack 43 mounted articulated on the support 41.

Ainsi, le support d'attente 9 pourra se déplacer à la manière d'une balançoire par rapport au bâti 1, comme on l'expliquera plus loin à propos du fonctionnement. On observera encore ici que le support d'attente 9 comporte une pluralité de patins horizontaux 44 sur lesquels peut reposer une tôle TO. On a montré en 45 des aimants prévus sur certains de ces patins 44 pour maintenir la tôle, étant entendu que certains desdits patins peuvent être montés d'une manière réglable sur le support d'attente 9. Egalement, on peut prévoir au niveau de l'un des patins 44 un détecteur 46 de la présence d'une tôle. Enfin, on voit en 40a un bras solidaire du cadre déformable 40 et pouvant coopérer avec l'un ou l'autre de deux contacts de fin de course 40b pour limiter le mouvement du cadre 40.Thus, the standby support 9 can move in the manner of a swing with respect to the frame 1, as will be explained later in connection with operation. It will also be observed here that the waiting support 9 comprises a plurality of horizontal pads 44 on which a sheet metal TO can rest. At 45 have been shown magnets provided on some of these pads 44 for holding the sheet, it being understood that some of said pads can be mounted in an adjustable manner on the holding support 9. Also, it is possible to provide at the level of the 'one of the pads 44 a detector 46 of the presence of a sheet. Finally, we see at 40a an arm secured to the deformable frame 40 and capable of cooperating with one or the other of two limit switch contacts 40b to limit the movement of the frame 40.

Revenant aux figures 1 à 4, on voit que le bâti 1 de l'appareil est déplaçable par rapport au support 3 fixé sur la presse PR grâce à un groupe motoréducteur 47 qui entraîne une vis à billes 48 et qui est muni d'un frein à disque 49. On comprend donc que le bâti 1 est monté réglable sur le support 3 fixé à la presse PR, et à ce sujet, on remarquera que la partie ou plaque 2 appartenant à ce bâti est montée verticalement coulissante dans des rails 2a (figure 1) appartenant au support 3. Par ailleurs, le bâti 1 supportant l'indexeur-oscillateur 11, le chariot 6 et ses éléments associés, ainsi que le support d'attente 9 est maintenu, après réglage dans le sens vertical par rapport au support 3, dans une position déterminée contre ledit support. A cet effet, comme on le voit sur les figures 1 et 4, des bras élastiques 50 formant leviers sont articulés en 51 sur le support 3 et sont commandés chacun par des cames ou excentriques 52 solidaires d'un arbre 53 (figure 1) actionné par des vérins 54 (figure 4) montés articulés sur le support 3. Plus précisément, et comme on le voit bien sur la figure 4, le corps des vérins 53 est articulé sur le support 3 et les tiges de ce: vérins commandent la rotation des cames ou excentriques 52 qui coopèrent avec l'une des extrémités des bras 50 dont l'autre extrémité peut prendre appui sur la partie ou plaque 2 du bâti 1, pour ainsi solidariser le bâti avec le support 3 lui-même fixé sur la face avant 5 de la presse PR.Returning to FIGS. 1 to 4, it can be seen that the frame 1 of the device is movable relative to the support 3 fixed on the press PR thanks to a geared motor group 47 which drives a ball screw 48 and which is provided with a brake disc 49. It is therefore understood that the frame 1 is mounted adjustable on the support 3 fixed to the press PR, and in this regard, it will be noted that the part or plate 2 belonging to this frame is mounted vertically sliding in rails 2a ( Figure 1) belonging to the support 3. Furthermore, the frame 1 supporting the indexer-oscillator 11, the carriage 6 and its associated elements, as well as the standby support 9 is maintained, after adjustment in the vertical direction relative to the support 3, in a position determined against said support. To this end, as can be seen in FIGS. 1 and 4, elastic arms 50 forming levers are articulated at 51 on the support 3 and are each controlled by cams or eccentrics 52 secured to a shaft 53 (FIG. 1) actuated by jacks 54 (FIG. 4) mounted articulated on the support 3. More precisely, and as can be seen in FIG. 4, the body of the jacks 53 is articulated on the support 3 and the rods of this: jacks control the rotation cams or eccentrics 52 which cooperate with one of the ends of the arms 50, the other end of which can bear on the part or plate 2 of the frame 1, thereby securing the frame with the support 3 itself fixed on the face before 5 of the PR press.

On voit en M sur les figures 1 à 4 le moteur d'entraînement de l'indexeur-oscillateur 11 qui, comme on l'a dit plus haut, commande le mouvement de va-et-vient du chariot 2 et de ses éléments associés.We see in M in Figures 1 to 4 the drive motor of the indexer-oscillator 11 which, as we said above, controls the back and forth movement of the carriage 2 and its associated elements .

Mais, pour une meilleure compréhension de l'invention, on décrira ci-après le fonctionnement de l'appareil de chargement en flans de tôle dans la presse PR, qui vient d'être décrit, et cela en se reportant plus particulièrement aux figures 2 et 3.However, for a better understanding of the invention, the operation of the sheet blank loading device in the PR press, which has just been described, will be described below, with particular reference to FIGS. 2 and 3.

On supposera qu'en départ de cycle, les divers éléments de l'appareil se trouvent dans la position de la figure 3.It will be assumed that at the start of the cycle, the various elements of the apparatus are in the position of FIG. 3.

Dans cette position, un flan de tôle TO se trouvera déjà sur le support d'attente 9 qui est en position haute. Un autre flanc de tôle TO est accroché aux ventouses 14 du système de dépilage 7 lequel est en position remontée après avoir été chercher la première tôle TO d'une pile G de tôles.In this position, a sheet blank TO will already be on the waiting support 9 which is in the high position. Another TO sheet side is attached to the suction cups 14 of the unstacking system 7 which is in the raised position after having been fetched the first sheet metal TO from a stack G of sheets.

Le départ de cycle est donné par un signal électrique en provenance de la presse PR, et la séquence d'opérations suivantes se produit.The cycle start is given by an electrical signal from the PR press, and the following sequence of operations occurs.

Le chariot 6, actionné par l'indexeur-oscillateur 11 avance, comme on le voit bien sur la figure 2, alors que le support d'attente 9 se trouve toujours en position haute, contrairement à ce qui est représenté sur cette figure, où ledit support d'attente a été représenté en position basse pour plus de clarté.The carriage 6, actuated by the indexer-oscillator 11 advances, as can be seen in FIG. 2, while the standby support 9 is always in the high position, contrary to what is shown in this figure, where said stand has been shown in the low position for clarity.

Les pinces P se ferment grâce aux moyens formant came 20 actionnant la tringle T et le flan de tôle reposant sur le support d'attente 9 en position haute est saisi à la volée.The clamps P close thanks to the means forming a cam 20 actuating the rod T and the sheet blank resting on the waiting support 9 in the high position is gripped on the fly.

Le chariot 6 termine sa course vers l'avant jusqu'à l'introduction du flan de tôle saisi par les pinces P dans l'outil de la presse.The carriage 6 ends its forward stroke until the introduction of the sheet metal blank gripped by the clamps P into the press tool.

A ce stade, il se produit une ouverture des pinces P toujours grâce au moyen formant came 20 qui se trouve en bout de la rainure 29, c'est-à-dire en partie extrême gauche de la figure 7. Le flan de tôle sera ainsi relâché dans la presse.At this stage, there is an opening of the clamps P always thanks to the cam means 20 which is at the end of the groove 29, that is to say in the extreme left part of FIG. thus released in the press.

Simultanément, le système de dépilage 7 qui se trouve au droit du support d'attente 9 toujours en position haute, déposera un flan de tôle sur ledit support d'attente.Simultaneously, the unstacking system 7 which is located in line with the waiting support 9 still in the high position, will deposit a sheet blank on said waiting support.

Le chariot 6 reculera et, simultanément, le support d'attente 9 se déplacera vers le bas, comme montré sur la figure 2 pour laisser le passage au chariot 6 qui recule et qui ainsi ne pourra pas interférer avec le flan de tôle précédemment déposé par le système de dépilage 7 sur ledit support d'attente.The carriage 6 will move back and, simultaneously, the standby support 9 will move downward, as shown in FIG. 2 to allow passage to the carriage 6 which moves back and which will therefore not be able to interfere with the sheet metal blank previously deposited by the unstacking system 7 on said stand.

Le chariot 6 termine sa course de recul pour revenir à la position montrée sur la figure 3.The carriage 6 ends its recoil stroke to return to the position shown in FIG. 3.

Le système de dépilage 7 va alors chercher un nouveau flan de tôle sur la pile G, tandis que le support d'attente 9 retourne à la position haute visible sur la figure 3, de sorte que la séquence des opérations ci-dessus recommence.The unstacking system 7 will then look for a new sheet blank on the stack G, while the waiting support 9 returns to the high position visible in FIG. 3, so that the above sequence of operations begins again.

On observera ici que la vitesse de va-et-vient du chariot est ajustée avec celle de la presse par action sur un variateur de fréquence (non représenté) qui commande le moteur M de l'indexeur-oscillateur 11.It will be observed here that the speed of the carriage back and forth is adjusted with that of the press by action on a frequency converter (not shown) which controls the motor M of the indexer-oscillator 11.

Il est important d'insister ici sur le fait que le système de dépilage 7 associé au chariot 6 alimente le support d'attente 9 de manière parfaitement coordonnée et synchrone avec l'introduction des tôles TO dans la presse PR par ledit chariot.It is important to emphasize here that the unstacking system 7 associated with the carriage 6 feeds the waiting support 9 in a perfectly coordinated and synchronous manner with the introduction of the sheets TO in the press PR by said carriage.

On peut ainsi, grâce à la structure et au fonctionnement de l'appareil de chargement automatique de tôles selon cette invention obtenir des cadences de presse de l'ordre de vingt à vingt-cinq coups par minute, ce qui est nettement plus élevé qu'avec les systèmes de l'art antérieur.It is thus possible, thanks to the structure and operation of the automatic sheet loading apparatus according to this invention, to obtain press rates of the order of twenty to twenty-five strokes per minute, which is much higher than with the systems of the prior art.

Bien entendu, l'invention n'est nullement limitée au mode de réalisation décrit et illustré qui n'a été donné qu'à titre d'exemple.Of course, the invention is in no way limited to the embodiment described and illustrated, which has been given only by way of example.

Au contraire, l'invention comprend tous les équivalents techniques des moyens décrits ainsi que leurs combinaisons si celles-ci sont effectuées suivant son esprit.On the contrary, the invention includes all the technical equivalents of the means described and their combinations if these are carried out according to the spirit.

Claims (13)

Appareil d'alimentation automatique en flans de tôle d'une presse ou autre machine quelconque, du type destiné à être fixé sur la presse et comprenant des moyens aptes à saisir une tôle (TO) placée sur un support d'attente (9) et à introduire ensuite cette tôle dans la presse (PR), lesdits moyens étant constitués par au moins un chariot (6) muni d'au moins un système (7) de dépilage de tôles qui alimente ledit support d'attente (9) de manière coordonnée et synchrone avec l'introduction des tôles (TO) dans la presse (PR) par ledit chariot, caractérisé en ce que le chariot (6), muni de moyens (8) de préhension d'une tôle, est monté déplaçable suivant un mouvement alternatif sur un bâti (1) auquel est fixé le support d'attente (9) de façon mobile et escamotable, pour qu'en position haute du support d'attente (9), lesdits moyens (8) de préhension puissent saisir à la volée une tôle (TO) reposant sur ledit support afin de l'introduire dans la presse (PR) et pour qu'en position basse du support d'attente (9), le chariot (6) puisse reculer sans interférer avec une tôle précédemment déposée sur ledit support par le système de dépilage (7).Apparatus for automatically feeding sheet blanks to a press or any other machine, of the type intended to be fixed to the press and comprising means capable of gripping a sheet (TO) placed on a holding support (9) and to then introduce this sheet into the press (PR), said means being constituted by at least one carriage (6) provided with at least one system (7) for unstacking sheets which feeds said holding support (9) so coordinated and synchronous with the introduction of the sheets (TO) into the press (PR) by said carriage, characterized in that the carriage (6), provided with means (8) for gripping a sheet, is mounted movable according to a reciprocating movement on a frame (1) to which the waiting support (9) is fixed in a movable and retractable manner, so that in the high position of the waiting support (9), said gripping means (8) can grasp at the fly a sheet (TO) resting on said support in order to introduce it into the press (PR) and p or in the low position of the waiting support (9), the carriage (6) can move back without interfering with a sheet previously deposited on said support by the unstacking system (7). Appareil selon la revendication 1, caractérisé en ce que le support d'attente (9) est solidaire d'un cadre déformable (40) monté sur un support (41) fixé au bâti (1) de l'appareil.Device according to claim 1, characterized in that the waiting support (9) is integral with a deformable frame (40) mounted on a support (41) fixed to the frame (1) of the device. Appareil selon la revendication 2, caractérisé en ce que le cadre déformable précité (40) forme sensiblement un parallélogramme articulé et déformable au moyen d'un vérin (43) monté sur le support précité (41).Apparatus according to claim 2, characterized in that the aforesaid deformable frame (40) substantially forms an articulated and deformable parallelogram by means of a jack (43) mounted on the aforementioned support (41). Appareil selon la revendication 1, caractérisé en ce que le système de dépilage précité (7) comprend des ventouses ou autres moyens analogues (14) solidaires d'un support (16) monté verticalement mobile sur un châssis (17) et actionnable par un vérin (18a) fixé sur ledit châssis lui-même fixé de manière éventuellement réglable sur le chariot (6).Apparatus according to claim 1, characterized in that the aforementioned unstacking system (7) comprises suction cups or other similar means (14) integral with a support (16) mounted vertically movable on a frame (17) and actuable by a jack (18a) fixed on said chassis itself fixed optionally adjustable on the carriage (6). Appareil selon l'une des revendications précédentes, caractérisé en ce que le chariot précité (6) est animé d'un mouvement alternatif de translation sur un rail de guidage (10) solidaire du bâti (1), au moyen d'un indexeur-oscillateur (11) monté sur le bâti (1), comportant un bras (12) relié de façon articulée audit chariot, et dont la loi de mouvement est adaptée au cycle de la presse.Apparatus according to one of the preceding claims, characterized in that the aforementioned carriage (6) is driven in an alternating translational movement on a guide rail (10) integral with the frame (1), by means of an indexer- oscillator (11) mounted on the frame (1), comprising an arm (12) hingedly connected to said carriage, and the law of movement of which is adapted to the press cycle. Appareil selon l'une des revendications précédentes, caractérisé en ce que les moyens de préhension (8) d'une tôle sur le support d'attente (9) sont constitués par des pinces (P) agencées à l'une (23) des extrémités du chariot (6) et commandées par une tringle ou analogue (T) actionnable par des moyens formant came (20) sous l'effet du déplacement du chariot par rapport au bâti (1).Apparatus according to one of the preceding claims, characterized in that the means for gripping (8) a sheet on the holding support (9) consist of clamps (P) arranged at one (23) of the ends of the carriage (6) and controlled by a rod or the like (T) actuable by means forming a cam (20) under the effect of the displacement of the carriage relative to the frame (1). Appareil selon la revendication 6, caractérisé en ce que les moyens formant came (20) sont constitués par une pièce sensiblement en forme de L (25) monté pivotant (26) sur le chariot (6), dont l'une (27) des branches porte un doigt, galet ou analogue (28) engagé dans une rainure ou chemin de came (29) pratiqué dans une pièce (30) fixée sur le bâti (1), et dont l'autre branche (32) est articulée (33) sur l'une des extrémités de la tringle précitée (T).Apparatus according to claim 6, characterized in that the cam means (20) consist of a substantially L-shaped piece (25) pivotally mounted (26) on the carriage (6), one of which (27) branches carries a finger, roller or the like (28) engaged in a groove or cam path (29) formed in a part (30) fixed on the frame (1), and the other branch (32) of which is articulated (33 ) on one of the ends of the aforementioned rod (T). Appareil selon la revendication 6 ou 7, caractérisé en ce que l'autre extrémité de la tringle (T) est reliée de façon articulée (24) à deux supports (22) qui portent respectivement des bras (21) de pince en vis-à-vis, et qui sont montés à rotation sur une pièce intermédiaire (23) montée réglable sur le chariot (6).Apparatus according to claim 6 or 7, characterized in that the other end of the rod (T) is hingedly connected (24) to two supports (22) which respectively carry arms (21) of gripper opposite -screws, and which are rotatably mounted on an intermediate piece (23) mounted adjustable on the carriage (6). Appareil selon l'une des revendications 6 à 8, caractérisé en ce que les bras (21) de pince précités sont montés réglables sur les deux supports (22) commandés par la tringle (T) de façon à permettre leur réglage en écartement.Apparatus according to one of claims 6 to 8, characterized in that the aforesaid clamp arms (21) are mounted adjustable on the two supports (22) controlled by the rod (T) so as to allow their spacing adjustment. Appareil selon l'une des revendications 1 à 9, caractérisé en ce que la longueur de la tringle (T) précitée est réglable au moyen d'un raccord (35) constitué par un fourreau (39) articulé (33) sur la pièce en L (25) et dans lequel est télescopiquement montée ladite tringle, par une douille (36) montée sur ledit fourreau, et par un écrou (37) coopérant avec cette douille et la tringle et possédant un orifice taraudé (38) de diamètre supérieur à celui de la tringle (T) et susceptible de se dégager de la tringle après déverrouillage et déplacement de la douille (36) par rapport audit fourreau (39), ladite tringle étant filetée au moins au niveau du raccord (35).Apparatus according to one of claims 1 to 9, characterized in that the length of the above-mentioned rod (T) is adjustable by means of a connector (35) consisting of a sleeve (39) articulated (33) on the workpiece L (25) and in which said rod is telescopically mounted, by a sleeve (36) mounted on said sleeve, and by a nut (37) cooperating with this sleeve and the rod and having a threaded orifice (38) of diameter greater than that of the rod (T) and capable of being released from the rod after unlocking and displacement of the sleeve (36) relative to said sheath (39), said rod being threaded at least at the connection (35). Appareil selon l'une des revendications précédentes, caractérisé en ce que le bâti précité (1) est monté verticalement coulissant et réglable sur un support (3) lui-même fixé sur la presse (PR).Apparatus according to one of the preceding claims, characterized in that the above-mentioned frame (1) is mounted vertically sliding and adjustable on a support (3) itself fixed on the press (PR). Appareil selon la revendication 11, caractérisé en ce que le bâti précité (1) est déplaçable par rapport au support (3) au moyen d'un groupe moto-réducteur (47) entraînant une vis à billes (48) et comportant un frein à disque (49).Apparatus according to claim 11, characterized in that the above-mentioned frame (1) is movable relative to the support (3) by means of a geared motor unit (47) driving a ball screw (48) and comprising a brake disc (49). Appareil selon la revendication 11 ou 12, caractérisé en ce que le bâti (1) est maintenu, dans une position déterminée, contre le support précité (3) au moyen de bras élastiques (50) formant leviers articulés (51) sur le support (3) et commandés chacun par des camps, excentriques ou analogues (52) actionnés par des vérins (53) montés articulés sur ledit support.Apparatus according to claim 11 or 12, characterized in that the frame (1) is held, in a determined position, against the aforementioned support (3) by means of elastic arms (50) forming hinged levers (51) on the support ( 3) and each controlled by camps, eccentrics or the like (52) actuated by jacks (53) mounted articulated on said support.
EP19910400537 1990-03-14 1991-02-27 Device for feeding automatically blanks to a press or any other machine Expired - Lifetime EP0449681B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9003275 1990-03-14
FR9003275A FR2659578B1 (en) 1990-03-14 1990-03-14 APPARATUS FOR AUTOMATICALLY FEEDING SHEET SHEET OF A PRESS OR OTHER MACHINE.

Publications (2)

Publication Number Publication Date
EP0449681A1 true EP0449681A1 (en) 1991-10-02
EP0449681B1 EP0449681B1 (en) 1993-06-23

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Application Number Title Priority Date Filing Date
EP19910400537 Expired - Lifetime EP0449681B1 (en) 1990-03-14 1991-02-27 Device for feeding automatically blanks to a press or any other machine

Country Status (4)

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EP (1) EP0449681B1 (en)
DE (1) DE69100136T2 (en)
ES (1) ES2043441T3 (en)
FR (1) FR2659578B1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6210968B1 (en) * 1994-04-19 2001-04-03 Chiron Spa DNA molecules encoding pgp3 protein from Chlamydia trachomatis
CN101733336B (en) * 2008-11-17 2012-01-25 扬州锻压机床集团有限公司 Location device for aggregate turntable with 360 degrees rotation
CN116274485A (en) * 2023-05-18 2023-06-23 山东联兴绿厦建筑科技有限公司 Be used for light-duty curtain wall board auxiliary device of production steel skeleton

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101804436B (en) * 2010-04-19 2012-07-11 王冬永 Automatic feeder for punch

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2389738A (en) * 1943-04-09 1945-11-27 Western Electric Co Article forming machine
US2932428A (en) * 1957-11-07 1960-04-12 Federal Mogul Bower Bearings Slug feeder
FR1326785A (en) * 1962-05-30 1963-05-10 Metallwaren & Maschf P Schwarz Separating device, more particularly intended for metal blanks stored, for example, in a feed hopper
FR2111652A7 (en) * 1970-10-07 1972-06-09 Unisoc Machine Tools Ltd
FR2169417A1 (en) * 1972-01-27 1973-09-07 Norda Spa
FR2555502A1 (en) * 1983-11-25 1985-05-31 Citroen Sa Component loader-extractor
EP0331661A1 (en) * 1988-03-04 1989-09-06 Rauma-Repola Oy Sheet press.

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6056428A (en) * 1983-09-06 1985-04-02 Orii Jidoki Seisakusho:Kk Automatic feeding device of material to be worked

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2389738A (en) * 1943-04-09 1945-11-27 Western Electric Co Article forming machine
US2932428A (en) * 1957-11-07 1960-04-12 Federal Mogul Bower Bearings Slug feeder
FR1326785A (en) * 1962-05-30 1963-05-10 Metallwaren & Maschf P Schwarz Separating device, more particularly intended for metal blanks stored, for example, in a feed hopper
FR2111652A7 (en) * 1970-10-07 1972-06-09 Unisoc Machine Tools Ltd
FR2169417A1 (en) * 1972-01-27 1973-09-07 Norda Spa
FR2555502A1 (en) * 1983-11-25 1985-05-31 Citroen Sa Component loader-extractor
EP0331661A1 (en) * 1988-03-04 1989-09-06 Rauma-Repola Oy Sheet press.

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, vol. 9, no. 191 (M-402)[1914], 7 août 1985; & JP-A-60 056 428 (ORII JIDOUKI) 02-04-1985 *

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6210968B1 (en) * 1994-04-19 2001-04-03 Chiron Spa DNA molecules encoding pgp3 protein from Chlamydia trachomatis
US6649374B1 (en) 1994-04-19 2003-11-18 Chiron S.R.L. Recombinant Chlamydia trachomatis PGP3 antigen
US7070791B2 (en) 1994-04-19 2006-07-04 Chiron Srl Detection of antibodies against Chlamydia trachomatis pgp3 antigen in patient sera by enzyme-linked immunoassay
US7485313B2 (en) 1994-04-19 2009-02-03 Novartis Ag Recombinant Chlamydia trachomatis pgp3 protein suitable for enzyme-linked immunoassay, and used of the protein in eliciting and diagnosing an immune response
CN101733336B (en) * 2008-11-17 2012-01-25 扬州锻压机床集团有限公司 Location device for aggregate turntable with 360 degrees rotation
CN116274485A (en) * 2023-05-18 2023-06-23 山东联兴绿厦建筑科技有限公司 Be used for light-duty curtain wall board auxiliary device of production steel skeleton
CN116274485B (en) * 2023-05-18 2023-08-08 山东联兴绿厦建筑科技有限公司 Be used for light-duty curtain wall board auxiliary device of production steel skeleton

Also Published As

Publication number Publication date
FR2659578B1 (en) 1995-04-28
DE69100136T2 (en) 1994-01-27
EP0449681B1 (en) 1993-06-23
DE69100136D1 (en) 1993-07-29
ES2043441T3 (en) 1993-12-16
FR2659578A1 (en) 1991-09-20

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