EP0572516A1 - Cutting device and rounded corners for a strip material. - Google Patents

Cutting device and rounded corners for a strip material.

Info

Publication number
EP0572516A1
EP0572516A1 EP92906750A EP92906750A EP0572516A1 EP 0572516 A1 EP0572516 A1 EP 0572516A1 EP 92906750 A EP92906750 A EP 92906750A EP 92906750 A EP92906750 A EP 92906750A EP 0572516 A1 EP0572516 A1 EP 0572516A1
Authority
EP
European Patent Office
Prior art keywords
eccentric
rounded corners
double
eccentrics
knife
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
EP92906750A
Other languages
German (de)
French (fr)
Other versions
EP0572516B1 (en
Inventor
Michael Long
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.)
Kodak Pathe SA
Eastman Kodak Co
Original Assignee
Kodak Pathe SA
Eastman Kodak Co
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 Kodak Pathe SA, Eastman Kodak Co filed Critical Kodak Pathe SA
Priority to EP96420238A priority Critical patent/EP0740985A3/en
Publication of EP0572516A1 publication Critical patent/EP0572516A1/en
Application granted granted Critical
Publication of EP0572516B1 publication Critical patent/EP0572516B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/56—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which travels with the work otherwise than in the direction of the cut, i.e. flying cutter
    • B26D1/60—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which travels with the work otherwise than in the direction of the cut, i.e. flying cutter and is mounted on a movable carriage
    • B26D1/605—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which travels with the work otherwise than in the direction of the cut, i.e. flying cutter and is mounted on a movable carriage for thin material, e.g. for sheets, strips or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D3/00—Cutting work characterised by the nature of the cut made; Apparatus therefor
    • B26D3/10—Making cuts of other than simple rectilinear form
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D3/00—Cutting work characterised by the nature of the cut made; Apparatus therefor
    • B26D3/14—Forming notches in marginal portion of work by cutting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D9/00—Cutting apparatus combined with punching or perforating apparatus or with dissimilar cutting apparatus
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H35/00—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers
    • B65H35/04—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers from or with transverse cutters or perforators
    • B65H35/06—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers from or with transverse cutters or perforators from or with blade, e.g. shear-blade, cutters or perforators

Definitions

  • the invention relates to a cutting device and rounded corners for a strip material for a strip material intended to be cut in the form of substantially rectangular sheets having rounded corners and relates in particular to the cutting of radiographic products.
  • such rounded corners are produced by first making notches, having the shape of the rounding common to two adjacent sheets, on the edges of a moving strip and, then, cutting the strip in the middle of said notch.
  • the problem with such a technique lies in the difficulty of correctly positioning the cutting device relative to the center of the notch. Indeed, the slightest defect in positioning of the cutting device will cause an incomplete rounding of one of the sheets and an undesirable strip at the end of the other sheet.
  • Another known technique involves stopping the process while positioning and making the rounded corners of the sheet which has just been cut. This technique is of course penalizing from the point of view of productivity.
  • the strip is cut into sheets; a given number of sheets is then stacked and the stack of sheets is then moved to equipment intended to produce the rounded corners.
  • a technique presents problems which may result from incorrect stacking of the sheets in the stack.
  • other systems such as in-line rotary systems, but which have large problems related to the complexity of the operations necessary for the passage from one format to another.
  • a cutting device and rounded corners are produced for a strip material intended to be cut in the form of substantially parallelepipedic sheets having rounded corners, said device mainly comprising: a) means for feeding and guiding the strip material, b) means for evacuating, guiding and receiving individual sheets with rounded corners, c) cutting means comprising a knife and a counter knife and means making it possible to produce the rounded corners comprising two punch modules / matrix arranged opposite each other on both sides of the strip, said means making the cut and the rounded corners being driven by means of two double eccentrics, the first double eccentric driving the knife by means of a first eccentric and, integrally, the two punches (or the two dies) by means of a second eccentric, the first and the second eccentric being in phase opposition, the second double eccentric driving the counter knife through a third eccentric and, in a solid manner, the two dies (or two punches) via a fourth eccentric, the third and
  • FIG. 1 schematically represents an embodiment of the cutting device and rounded corners according to the present invention
  • FIGS. 3A-3B represent a coupling device with variable angular speed, as used in a particular embodiment of the device according to the present invention
  • Figs 4A-4B show curves illustrating the operation of the variable angular speed coupling device shown in Figs 3A and 3B;
  • Fig. 5 shows an example of a differential movement device as used in a preferred embodiment of the cutting device and rounded corners according to the present invention.
  • Fig. 1 to which reference is now made illustrates an embodiment of the cutting device / rounded corners according to the present invention.
  • the device mainly comprises a roll 1 of the strip product which it is desired to cut into sheets having rounded corners. It may be an example of an X-ray product.
  • the feed device comprises drive means, guide devices which, in order to simplify the drawing, are not shown in FIG. 1.
  • the device also comprises a cutting device comprising a knife 2 and a counter knife 3 and a device making it possible to produce rounded corners comprising two punch / die modules 4.5 facing each other (one of each side of the strip).
  • the first double eccentric drives the block carrying the knife 2 and, in an integral manner, the two punch-carrying blocks 4 (or the two die-carrying blocks 5), the first and the second eccentric being, as shown in FIG. 1, in phase opposition.
  • the second double eccentric 7 drives the block carrying the counter knife 3 and, in an integral manner, the two die-carrying blocks 5 (or the two punch-carrying blocks 4), the third and the fourth eccentric also being, as shown in Fig. ___. , in phase opposition.
  • the two double eccentrics are arranged so that the knife and the punches come to cooperate respectively with the counter-knife and the dies, in a manner well known in the art.
  • Each of the motor shafts is driven at constant speed (by example 300 rpm) or, according to a preferred embodiment, by means of a device with variable angular speed which will be discussed in more detail below and which makes it possible to communicate to the cutting tools and rounded corners an equal speed at the speed of the film during the entire period of engagement of said tools and said film.
  • the two motor shafts 8, 9 are, by suitable gear devices, driven by the same motor. Such an arrangement makes it possible to facilitate the synchronization of the movement of the two double eccentrics.
  • the different tools thus mounted each describe, according to a well-defined chronology, a circular trajectory in a plane parallel to the axis of travel of the film and orthogonal to the plane of this film.
  • the circular paths 10, 11, 12, 13 of the different tools are shown in broken lines in FIG. 1.
  • the synchronization of the respective movements of each of the tools will now be the subject of a more detailed description with reference to FIGS 2A-2D.
  • Fig. 2A the knife 20 and the counter knife 21 are in the cutting position and are each facing one another on their respective circular paths.
  • the punch holder blocks 22 and the die holder blocks 23 are in turn opposite each other respectively on their respective circular paths.
  • Fig. 2B after a 90 ° rotation of each of the double eccentrics, the device passes through a first intermediate position in which the knife 20 and the punch holder blocks 22 are opposite on their respective circular paths. It is the same for the counter knife 21 and the die holder blocks 23.
  • FIG. 2C after a further 90 ° rotation of each of the double eccentrics, the situation is the reverse of the situation relating to FIG. 2A.
  • the punches 22 and the dies 23 are in the engagement position on the film and are each in look respectively at each other on their respective circular paths.
  • the knife 20 and the counter knife 21 are in contrast to each other on their respective paths.
  • Fig. 2D after a further 90 ° rotation of each of the double eccentrics, the device passes through a second intermediate position in which the knife 20 and the punch-carrying blocks 22 are opposite on their respective circular paths. The same goes for the counter-knife 21 and the die-carrying blocks 23.
  • the device is in the position shown in FIG.
  • the punch holder blocks and the die holder blocks are in engagement with the film, thus achieving the rounded corners of both the upstream edge of the sheet F n + 1 and from the downstream edge of the "sheet" F n , a device with differential movement, which will be described in more detail below, being provided in the device for conveying the sheets so that the sheet F n + 1 , during the time interval corresponding to the 180 ° rotation of the double eccentrics, a distance slightly greater than the distance traveled by the "sheet" F n still attached to the roll of product in strip. According to one embodiment, this variation in distance is of the order of 2 mm. After a further 180 ° rotation of each of the double eccentrics, the sheet F n is separated from the "sheet" F n _ 1 and so on.
  • Means for evacuating, guiding and receiving the individual sheets are provided at the outlet of the device according to the present invention.
  • the presence of the device making the rounded corners immediately next to the cutting device makes it possible to make the rounded corners of the downstream edge of the sheet F n while the latter is still integral with the roll of product in a strip, thus avoiding positioning problems.
  • the corners of the other edge of the sheet are made immediately after the sheet has been separated from the rest of the roll, thereby minimizing the risk of the sheet being misaligned with respect to said punches.
  • Such a system is perfectly modular both in width and in length, the length changes being effected by delaying or accelerating in an appropriate manner the movement of the double eccentrics, the width changes being effected by moving one of the modules laterally. punch / die.
  • Fig. 5 shows a differential movement device which can be used, according to a preferred embodiment, to separate the sheet which has just been cut from the rest of the roll of strip material.
  • the device mainly comprises a motor shaft rotating at constant speed V.
  • This motor shaft is coupled by means of a belt and a set of pulleys to a second shaft 31 suitable for driving the sheet F n which has just been separated of the roll of product in a strip, the two central pulleys 32, 33 coupled together, being slaved, for example, to the movement of the knife, so that said central pulleys have a reciprocating movement (shown vertically in FIG 5) allowing, during the time interval when the knife rises to the top of its circular trajectory, to increase the speed of the shaft 31 and therefore to accelerate the movement of the sheet F n which has just been separated from the roll of strip material.
  • Figs 3A-3B to which reference is now made represent a variable angular speed coupling device as used in a preferred embodiment of the device according to the present invention.
  • This speed coupling device mainly comprises:
  • the leaf spring 46 has a slightly convex shape (this characteristic does not appear in FIG. 3).
  • Such an arrangement allows the cams to perfectly follow said stationary cams and therefore allows greater precision in the movement at variable angular speed, - an output arm 47 coupled to this cam / cam mechanism; each end of the output arm 47 is connected by a spring leaf 48, 49 respectively to one of the two said cam follower supports 44, 45, so that the rotational movement, induced by the stationary cams, of each cam follower support around the axis of articulation of each pair of crossed springs causes a proportional rotational movement of the output arm 47 relative to the input arm 41.
  • the output arm 47 at a speed which, as shown in FIG. 4B oscillates around the value of the speed of the input arm 41.
  • the output arm is according to a particular embodiment connected to the control shaft of the cutting device / rounded corners by means of a flexible, rigid coupling in torsion (in order to solve the problems linked to a bad alignment between the axis of the output arm and the control axis of the cutting device / rounded corners).
  • a flexible, rigid coupling in torsion in order to solve the problems linked to a bad alignment between the axis of the output arm and the control axis of the cutting device / rounded corners.
  • the maximum speed variations between the output arm (curve in solid lines) and the nominal speed of the input arm (abscissa axis) are in the illustrated embodiment of ⁇ 7%.
  • this difference in speed modifies the linear speed of the cutting tools / rounded corners so that it corresponds perfectly, over an engagement angle of approximately 50 ° of the tool, to the speed of a strip moving at constant speed, the curve in broken lines representing the speed of the input arm; the curve in solid lines represents the speed of the output arm, substantially constant over approximately 50 °.
  • the use of such a device makes it possible to increase the engagement time of the cutting tools / rounded corners.

Abstract

Les outils (2-5) réalisant la coupe et les coins arrondis sont entraînés par deux doubles excentriques (6, 7), le premier double excentrique (6) entraînant le couteau (2) par l'intermédiaire d'un premier excentrique et, de manière solidaire les deux poinçons (4) par l'intermédiaire d'un second excentrique, le premier et le second excentriques étant déphasés de 180°, le second double excentrique (7) entraînant le contre-couteau (3) par l'intermédiaire d'un troisième excentrique et, de manière solidaire, les deux matrices (5), par l'intermédiaire d'un quatrième excentrique, le troisième et le quatrième excentriques étant déphasés de 180°.The tools (2-5) making the cut and the rounded corners are driven by two double eccentrics (6, 7), the first double eccentric (6) driving the knife (2) via a first eccentric and, integrally the two punches (4) via a second eccentric, the first and the second eccentric being out of phase by 180°, the second double eccentric (7) driving the counter-knife (3) via a third eccentric and, integrally, the two dies (5), via a fourth eccentric, the third and fourth eccentrics being out of phase by 180°.

Description

DISPOSITIF DE COUPE ET COINS ARRONDIS POUR UN MATERIAU EN BANDE L'invention concerne un dispositif de coupe et coins arrondis pour un matériau en bande destiné à être découpé sous forme de feuilles sensiblement parallélépipédiques présentant des coins arrondis et concerne notamment la découpe de produits radiographiques. The invention relates to a cutting device and rounded corners for a strip material for a strip material intended to be cut in the form of substantially rectangular sheets having rounded corners and relates in particular to the cutting of radiographic products.
Il est connu que les matériaux en feuilles tels que les fims radiographiques ou les cartes du type cartes bancaires doivent présenter des coins arrondis.It is known that sheet materials such as radiographic films or cards of the bank card type must have rounded corners.
Selon une première technique connue, de tels coins arrondis sont réalisés en effectuant dans un premier temps des encoches, présentant la forme de l'arrondi commun à deux feuilles adjacentes, sur les bords d'une bande en mouvement et, ensuite, en coupant la bande au milieu de ladite encoche. Le problème d'une telle technique réside dans la difficulté à positionner correctement le dispositif de coupe par rapport au centre de l'encoche. En effet, le moindre défaut de positionnement du dispositif de coupe entraînera un arrondi incomplet de l'une des feuilles et une bande indésirable à l'extrémité de l'autre feuille.According to a first known technique, such rounded corners are produced by first making notches, having the shape of the rounding common to two adjacent sheets, on the edges of a moving strip and, then, cutting the strip in the middle of said notch. The problem with such a technique lies in the difficulty of correctly positioning the cutting device relative to the center of the notch. Indeed, the slightest defect in positioning of the cutting device will cause an incomplete rounding of one of the sheets and an undesirable strip at the end of the other sheet.
Une autre technique connue implique que l'on arrête le processus tandis que l'on positionne et que l'on réalise les coins arrondis de la feuille qui vient juste d'être coupée. Cette technique est bien sûr pénalisante du point de vue de la productivité.Another known technique involves stopping the process while positioning and making the rounded corners of the sheet which has just been cut. This technique is of course penalizing from the point of view of productivity.
Selon une autre technique encore, au cours d'une première opération, on coupe la bande en feuilles ; on empile ensuite un nombre donné de feuilles et on déplace ensuite la pile de feuilles vers un équipement destiné à réaliser les coins arrondis. En plus des problèmes de coût et de complexité des équipements, une telle technique présente des problèmes pouvant résulter d'un empilement incorrect des feuilles dans la pile. II existe également d'autres systèmes, tels que les systèmes rotatifs en ligne, mais qui présentent de gros problèmes liés à la complexité des opérations nécessaires pour le passage d'un format à un autre.According to yet another technique, during a first operation, the strip is cut into sheets; a given number of sheets is then stacked and the stack of sheets is then moved to equipment intended to produce the rounded corners. In addition to the problems of cost and complexity of the equipment, such a technique presents problems which may result from incorrect stacking of the sheets in the stack. There are also other systems, such as in-line rotary systems, but which have large problems related to the complexity of the operations necessary for the passage from one format to another.
Aussi est-ce un des objets de la présente invention que de fournir un dispositif de coupe et coins arrondis en continu ne présentant pas les inconvénients des systèmes connus dans la technique antérieure;It is therefore one of the objects of the present invention to provide a continuous cutting device and rounded corners which do not have the drawbacks of the systems known in the prior art;
C'est un autre objet de la présente invention que de fournir un dispositif permettant, en continu, de réaliser le découpage en feuilles d'un matériau en bande et de réaliser les coins arrondis des feuilles ainsi obtenues. C'est un autre objet de la présente invention que de fournir un dispositif de coupe et coins arrondis permettant de façon simple de passer d'un format à un autre.It is another object of the present invention to provide a device making it possible, continuously, to cut into sheets a strip material and to produce the rounded corners of the sheets thus obtained. It is another object of the present invention to provide a cutting device and rounded corners allowing a simple way to switch from one format to another.
C'est encore un autre objet de la présente invention que de fournir un dispositif de coupe et coins arrondis ne nécessitant pas d'équipements complexes pour le positionnement des outils par rapport à la bande.It is yet another object of the present invention to provide a cutting device and rounded corners that do not require complex equipment for positioning the tools relative to the strip.
C'est encore un autre objet de la présente invention que de fournir un dispositif de coupe et coins arrondis ne présentant pas les problèmes d'usure mécanique affectant les dispositifs de la technique antérieure.It is yet another object of the present invention to provide a cutting device and rounded corners which do not have the mechanical wear problems affecting the devices of the prior art.
D'autres objets de la présente invention apparaîtront de manière plus détaillée dans la description qui suit. Selon la présente invention, on réalise un dispositif de coupe et coins arrondis pour un matériau en bande destiné à être découpé sous forme de feuilles sensiblement parallélépipédiques présentant des coins arrondis, ledit dispositif comprenant principalement, a) des moyens d'alimentation et de guidage du matériau en bande, b) des moyens d'évacuation, de guidage et de réception des feuilles individuelles à coins arrondis, c) des moyens de coupe comportant un couteau et un contre couteau et des moyens permettant de réaliser les coins arrondis comportant deux modules poinçons/matrice disposés en regard l'un de l'autre de part et d'autre de la bande, lesdits moyens réalisant la coupe et les coins arrondis étant entraînés au moyen de deux doubles excentriques, le premier double excentrique entraînant le couteau par l'intermédiaire d'un premier excentrique et, de manière solidaire, les deux poinçons (ou les deux matrices) par l'intermédiaire d'un deuxième excentrique, le premier et le second excentrique étant en opposition de phase, le second double excentrique entraînant le contre-couteau par l'intermédiaire d'un troisième excentrique et, de manière solidaire, les deux matrices (ou les deux poinçons) par l'intermédiaire d'un quatrième excentrique, les troisième et quatrième excentriques étant en opposition de phase, les mouvements desdits premier et second double excentrique présentant des phases de signe opposées.Other objects of the present invention will appear in more detail in the description which follows. According to the present invention, a cutting device and rounded corners are produced for a strip material intended to be cut in the form of substantially parallelepipedic sheets having rounded corners, said device mainly comprising: a) means for feeding and guiding the strip material, b) means for evacuating, guiding and receiving individual sheets with rounded corners, c) cutting means comprising a knife and a counter knife and means making it possible to produce the rounded corners comprising two punch modules / matrix arranged opposite each other on both sides of the strip, said means making the cut and the rounded corners being driven by means of two double eccentrics, the first double eccentric driving the knife by means of a first eccentric and, integrally, the two punches (or the two dies) by means of a second eccentric, the first and the second eccentric being in phase opposition, the second double eccentric driving the counter knife through a third eccentric and, in a solid manner, the two dies (or two punches) via a fourth eccentric, the third and fourth eccentrics being in phase opposition, the movements of said first and second double eccentric having opposite sign phases.
La description détaillée qui suit sera faite en faisant référence aux dessins dans lesquels :The following detailed description will be made with reference to the drawings in which:
- la Fig. 1 représente de façon schématique un mode de réalisation du dispositif de coupe et coins arrondis selon la présente invention ;- Fig. 1 schematically represents an embodiment of the cutting device and rounded corners according to the present invention;
- les Figs 2A-2D illustrent de façon schématique les différentes étapes de fonctionnement du dispositif de coupe et coins arrondis représenté à la Fig. 1 ; - les Figs 3A-3B représentent un dispositif de couplage à vitesse angulaire variable, tel qu'utilisé dans un mode de réalisation particulier du dispositif selon la présente invention,- Figs 2A-2D schematically illustrate the different stages of operation of the cutting device and rounded corners shown in Fig. 1; FIGS. 3A-3B represent a coupling device with variable angular speed, as used in a particular embodiment of the device according to the present invention,
- les Figs 4A-4B représentent des courbes illustrant le fonctionnement du dispositif de couplage à vitesse angulaire variable représenté aux Figs 3A et 3B ;- Figs 4A-4B show curves illustrating the operation of the variable angular speed coupling device shown in Figs 3A and 3B;
- la Fig. 5 représente un exemple de dispositif à mouvement différentiel tel qu'utilisé dans un mode de réalisation préférentiel•du dispositif de coupe et coins arrondis selon la présente invention. La Fig. 1 à laquelle on fait maintenant référence illustre un mode de réalisation du dispositif de coupe/coins arrondis selon la présente invention.- Fig. 5 shows an example of a differential movement device as used in a preferred embodiment of the cutting device and rounded corners according to the present invention. Fig. 1 to which reference is now made illustrates an embodiment of the cutting device / rounded corners according to the present invention.
Le dispositif comprend principalement un rouleau 1 du produit en bande que l'on souhaite découper en feuilles présentant des coins arrondis. Il peut s'agir à titre d'exemple d'un produit radiographique. Le dispositif d'alimentation comprend des moyens d'entraînement, des dispositifs de guidage qui, afin de simplifier le dessin, ne sont pas représentés en Fig. 1. Le dispositif comporte également un dispositif de coupe comportant un couteau 2 et un contre-couteau 3 et un dispositif permettant de réaliser des coins arrondis comportant deux modules poinçon/matrice 4,5 en regard l'un de l'autre (un de chaque côté de la bande) . Ces éléments sont entraînés au moyen de deux doubles-excentriques 6, 1 , chacun des doubles-excentriques étant entraîné par un unique arbre moteur 8, 9 l'arbre moteur 8 du premier double excentrique étant entraîné dans un premier sens de rotation et l'arbre moteur 9 étant entraîné à la même vitesse et dans le sens opposé à l'arbre moteur 8, de manière que les phases de ces deux arbres soient de signe opposées. Le premier double excentrique entraîne le bloc portant le couteau 2 et, de manière solidaire, les deux blocs porte-poinçons 4 (ou les deux blocs porte-matrices 5) le premier et le second excentrique étant, ainsi que représentés en Fig. 1, en opposition de phase. Le second double excentrique 7 entraîne le bloc portant le contre-couteau 3 et, de manière solidaire, les deux blocs porte-matrices 5 (ou les deux blocs porte- poinçons 4) , le troisième et le quatrième excentrique étant également, ainsi que représentés en Fig. ___. , en opposition de phase. Les deux doubles excentriques sont disposés de telle sorte que le couteau ainsi que les poinçons viennent coopérer respectivement avec le contre-couteau et les matrices, de manière bien connue dans la technique. Chacun des arbres moteurs est entraîné à vitesse constante (par exemple 300 tours/minute) ou, selon un mode de réalisation préférentiel, au moyen d'un dispositif a vitesse angulaire variable dont on reparlera plus en détail par la suite et qui permet de communiquer aux outils de coupe et de coins arrondis une vitesse égale à la vitesse du film pendant toute la période d'engagement desdits outils et dudit film. Selon un mode de réalisation préférentiel, les deux arbres moteurs 8, 9 sont, par des dispositifs à engrenages appropriés, entraînés par le même moteur. Une telle disposition permet de faciliter la synchronisation du mouvement des deux doubles excentriques.The device mainly comprises a roll 1 of the strip product which it is desired to cut into sheets having rounded corners. It may be an example of an X-ray product. The feed device comprises drive means, guide devices which, in order to simplify the drawing, are not shown in FIG. 1. The device also comprises a cutting device comprising a knife 2 and a counter knife 3 and a device making it possible to produce rounded corners comprising two punch / die modules 4.5 facing each other (one of each side of the strip). These elements are driven by means of two double-eccentrics 6, 1, each of the double-eccentrics being driven by a single drive shaft 8, 9 the drive shaft 8 of the first double eccentric being driven in a first direction of rotation and the motor shaft 9 being driven at the same speed and in the opposite direction to the motor shaft 8, so that the phases of these two shafts are of opposite sign. The first double eccentric drives the block carrying the knife 2 and, in an integral manner, the two punch-carrying blocks 4 (or the two die-carrying blocks 5), the first and the second eccentric being, as shown in FIG. 1, in phase opposition. The second double eccentric 7 drives the block carrying the counter knife 3 and, in an integral manner, the two die-carrying blocks 5 (or the two punch-carrying blocks 4), the third and the fourth eccentric also being, as shown in Fig. ___. , in phase opposition. The two double eccentrics are arranged so that the knife and the punches come to cooperate respectively with the counter-knife and the dies, in a manner well known in the art. Each of the motor shafts is driven at constant speed (by example 300 rpm) or, according to a preferred embodiment, by means of a device with variable angular speed which will be discussed in more detail below and which makes it possible to communicate to the cutting tools and rounded corners an equal speed at the speed of the film during the entire period of engagement of said tools and said film. According to a preferred embodiment, the two motor shafts 8, 9 are, by suitable gear devices, driven by the same motor. Such an arrangement makes it possible to facilitate the synchronization of the movement of the two double eccentrics.
Les différents outils ainsi montés décrivent chacun, selon une chronologie bien déterminée, une trajectoire circulaire dans un plan parallèle à l'axe de défilement du film et orthogonal au plan de ce film. Les trajectoires circulaires 10, 11, 12, 13 des différents outils sont représentées en traits interrompus à la Fig. 1. La synchronisation des mouvements respectifs de chacun des outils va faire maintenant l'objet d'une description plus détaillée en référence aux Figs 2A-2D.The different tools thus mounted each describe, according to a well-defined chronology, a circular trajectory in a plane parallel to the axis of travel of the film and orthogonal to the plane of this film. The circular paths 10, 11, 12, 13 of the different tools are shown in broken lines in FIG. 1. The synchronization of the respective movements of each of the tools will now be the subject of a more detailed description with reference to FIGS 2A-2D.
En Fig. 2A, le couteau 20 et le contre-couteau 21 sont en position de coupe et sont chacun en regard l'un de l'autre sur leurs trajectoires circulaires respectives. Les blocs porte-poinçons 22 et les blocs porte-matrices 23 sont quant à eux à l'opposé respectivement les uns des autres sur leurs trajectoires circulaires respectives. En Fig. 2B, après une rotation de 90° de chacun des doubles excentriques, le dispositif passe par une première position intermédiaire dans laquelle le couteau 20 et les blocs porte-poinçons 22 sont en regard sur leurs trajectoires circulaires respectives. Il en est de même pour le contre- couteau 21 et les blocs porte-matrices 23. En Fig. 2C, après une nouvelle rotation de 90° de chacun des doubles excentriques, la situation est l'inverse de la situation relative à la Fig. 2A. Les poinçons 22 et les matrices 23 sont en position d'engagement sur le film et sont chacun en regard respectivement les uns des autres sur leurs trajectoires circulaires respectives. Le couteau 20 et le contre-couteau 21 sont quant à eux à l'opposé l'un de l'autre sur leurs trajectoires respectives. En Fig. 2D, après une nouvelle rotation de 90° de chacun des doubles excentriques, le dispositif passe par une seconde position intermédiaire dans laquelle le couteau 20 et les blocs porte-poinçons 22 sont à l'opposé sur leurs trajectoires circulaires respectives. Il en va de même pour le contre-couteau 21 et les blocs porte-matrices 23. Ainsi lorsque le dispositif est dans la position représentée à la Fig. 2A, le couteau et le contre-couteau sont en engagement avec le produit en bande séparant ainsi la feuille n+1 de la "feuille" Fn, laquelle à son bord amont encore solidaire du rouleau de produit en bande. Après une rotation de 180° de chacun des doubles excentriques (Fig. 2C) , les blocs porte-poinçons et les blocs porte-matrices sont en engagement avec le film, réalisant ainsi les coins arrondis à la fois du bord amont de la feuille Fn+1 et du bord aval de la "feuille" Fn, un dispositif à mouvement différentiel, qui fera l'objet d'une description plus détaillée par la suite, étant prévu dans le dispositif de convoyage des feuilles pour faire parcourir à la feuille Fn+1, pendant l'intervalle de temps correspondant à la rotation de 180° des doubles excentriques, une distance légèrement supérieure à la distance parcourue par la "feuille" Fn encore solidaire du rouleau de produit en bande. Selon un mode de réalisation, cette variation de distance est de l'ordre de 2 mm. Après une nouvelle rotation de 180° de chacun des doubles excentriques, on sépare la feuille Fnde la "feuille" Fn_1 et ainsi de suite.In Fig. 2A, the knife 20 and the counter knife 21 are in the cutting position and are each facing one another on their respective circular paths. The punch holder blocks 22 and the die holder blocks 23 are in turn opposite each other respectively on their respective circular paths. In Fig. 2B, after a 90 ° rotation of each of the double eccentrics, the device passes through a first intermediate position in which the knife 20 and the punch holder blocks 22 are opposite on their respective circular paths. It is the same for the counter knife 21 and the die holder blocks 23. In FIG. 2C, after a further 90 ° rotation of each of the double eccentrics, the situation is the reverse of the situation relating to FIG. 2A. The punches 22 and the dies 23 are in the engagement position on the film and are each in look respectively at each other on their respective circular paths. The knife 20 and the counter knife 21 are in contrast to each other on their respective paths. In Fig. 2D, after a further 90 ° rotation of each of the double eccentrics, the device passes through a second intermediate position in which the knife 20 and the punch-carrying blocks 22 are opposite on their respective circular paths. The same goes for the counter-knife 21 and the die-carrying blocks 23. Thus when the device is in the position shown in FIG. 2A, the knife and the counter-knife are in engagement with the strip product thus separating the sheet n + 1 from the "sheet" F n , which at its upstream edge is still integral with the roll of strip product. After a 180 ° rotation of each of the double eccentrics (Fig. 2C), the punch holder blocks and the die holder blocks are in engagement with the film, thus achieving the rounded corners of both the upstream edge of the sheet F n + 1 and from the downstream edge of the "sheet" F n , a device with differential movement, which will be described in more detail below, being provided in the device for conveying the sheets so that the sheet F n + 1 , during the time interval corresponding to the 180 ° rotation of the double eccentrics, a distance slightly greater than the distance traveled by the "sheet" F n still attached to the roll of product in strip. According to one embodiment, this variation in distance is of the order of 2 mm. After a further 180 ° rotation of each of the double eccentrics, the sheet F n is separated from the "sheet" F n _ 1 and so on.
Des moyens d'évacuation, de guidage et de réception des feuilles individuelles (non représentés) sont prévus à la sortie du dispositif selon la présente invention. La présence du dispositif réalisant les coins arrondis immédiatement à côté du dispositif de coupe permet de réaliser les coins arrondis du bord aval de la feuille Fn tandis que celle-ci est encore solidaire du rouleau de produit en bande, évitant ainsi les problèmes de positionnement des poinçons par rapport à ladite feuille. Les coins de l'autre bord de la feuille sont réalisés immédiatement après que la feuille ait été séparée du reste du rouleau, minimisant ainsi le risque de mauvais positionnement de la feuille par rapport auxdits poinçons. Un tel système est parfaitement modulable à la fois en largeur et en longueur, les changements de longueur s'effectuant en retardant ou accélérant de façon appropriée le mouvement des doubles excentriques, les changements de largeur s'effectuant en déplaçant latéralement l'un des modules poinçon/matrice.Means for evacuating, guiding and receiving the individual sheets (not shown) are provided at the outlet of the device according to the present invention. The presence of the device making the rounded corners immediately next to the cutting device makes it possible to make the rounded corners of the downstream edge of the sheet F n while the latter is still integral with the roll of product in a strip, thus avoiding positioning problems. punches in relation to said sheet. The corners of the other edge of the sheet are made immediately after the sheet has been separated from the rest of the roll, thereby minimizing the risk of the sheet being misaligned with respect to said punches. Such a system is perfectly modular both in width and in length, the length changes being effected by delaying or accelerating in an appropriate manner the movement of the double eccentrics, the width changes being effected by moving one of the modules laterally. punch / die.
La Fig. 5 représente un dispositif à mouvement différentiel pouvant être utilisé, selon un mode de réalisation préférentiel, pour séparer la feuille venant juste d'être coupée du reste du rouleau de matériau en bande. Le dispositif comprend principalement un arbre moteur tournant à vitesse constante V. Cet arbre moteur est couplé au moyen d'une courroie et d'un ensemble de poulies à un second arbre 31 approprié pour entraîner la feuille Fn qui vient juste d'être séparée du rouleau de produit en bande, les deux poulies centrales 32, 33 couplées entre elles, étant asservies, par exemple, au mouvement du couteau, de telle sorte que lesdites poulies centrales aient un mouvement de va-et-vient (représenté verticalement en Fig. 5) permettant, pendant l'intervalle de temps où le couteau remonte au sommet de sa trajectoire circulaire, d'augmenter la vitesse de l'arbre 31 et donc d'accélérer le mouvement de la feuille Fn qui vient juste d'être séparée du rouleau de matériau en bande. On sépare ainsi ladite feuille du reste de la bande d'une distance qui, selon un mode de réalisation, est de l'ordre de 2 mm. Les Figs 3A-3B auxquelles il est maintenant fait référence représentent un dispositif de couplage à vitesse angulaire variable tel qu'utilisé dans un mode de réalisation préférentiel du dispositif selon la présente invention.Fig. 5 shows a differential movement device which can be used, according to a preferred embodiment, to separate the sheet which has just been cut from the rest of the roll of strip material. The device mainly comprises a motor shaft rotating at constant speed V. This motor shaft is coupled by means of a belt and a set of pulleys to a second shaft 31 suitable for driving the sheet F n which has just been separated of the roll of product in a strip, the two central pulleys 32, 33 coupled together, being slaved, for example, to the movement of the knife, so that said central pulleys have a reciprocating movement (shown vertically in FIG 5) allowing, during the time interval when the knife rises to the top of its circular trajectory, to increase the speed of the shaft 31 and therefore to accelerate the movement of the sheet F n which has just been separated from the roll of strip material. Said sheet is thus separated from the rest of the strip by a distance which, according to one embodiment, is of the order of 2 mm. Figs 3A-3B to which reference is now made represent a variable angular speed coupling device as used in a preferred embodiment of the device according to the present invention.
Ce dispositif de couplage de vitesse, comprend principalement :This speed coupling device mainly comprises:
- deux cames 39, 40 stationnaires, concentriques avec l'arbre 38 du moteur et conjuguées ; en effet ainsi que représentées en Fig. 3A, les déformations de chacune des deux cames sont identiques mais disposées de manière complémentaire, la partie en bosse de l'une étant disposée à 180° de la partie en creux de l'autre, et réciproquement ; selon un mode de réalisation les cames 39, 40 sont solidaires du châssis du moteur ;- Two stationary cams 39, 40, concentric with the shaft 38 of the engine and conjugate; indeed as shown in FIG. 3A, the deformations of each of the two cams are identical but arranged in a complementary manner, the embossed part of one being disposed at 180 ° to the hollow part of the other, and vice versa; according to one embodiment, the cams 39, 40 are integral with the chassis of the engine;
- deux contre-cames 50, 51 disposées à 180° autour des deux dites cames stationnaires et montées respectivement sur deux supports de contre-came 44, 45 ;- two cams 50, 51 arranged at 180 ° around the two said stationary cams and mounted respectively on two cam follower supports 44, 45;
- un bras d'entrée 41 entraîné à vitesse constante ; ce bras d'entrée est couplé par deux jeux de ressorts croisés 42, 43 à l'une des extrémités de chacun des deux supports de contre-came 44, 45, l'autre extrémité du premier support de contre-came étant couplée à l'autre extrémité du second support de contre-came au moyen d'une autre lame ressort 46. Afin de compenser les variations de distance qui peuvent exister entre les deux contre- cames 50, 51 (à moins d'usiner parfaitement les deux cames, ce qui, du point de vue du coût serait très pénalisant) , la lame ressort 46 présente une forme légèrement bombée (cette caractéristique n'apparait pas sur la Fig. 3) . Une telle disposition permet aux contre- cames de suivre parfaitement lesdites cames stationnaires et autorise donc une plus grande précision dans le mouvement à vitesse angulaire variable, - un bras de sortie 47 couplé à ce mécanisme came/ contre- came ; chacune des extrémités du bras de sortie 47 est reliée par une lame ressort 48, 49 respectivement à un des deux dits supports de contre-came 44, 45, de telle sorte que le mouvement de rotation, induit par les cames stationnaires, de chaque support de contre-came autour de l'axe d'articulation de chaque paire de ressorts croisés provoque un mouvement de rotation proportionnel du bras de sortie 47 par rapport au bras d'entrée 41. Le bras de sortie 47 à une vitesse qui, ainsi que représentée à la Fig. 4B oscille autour de la valeur de la vitesse du bras d'entrée 41. Le bras de sortie est selon un mode de réalisation particulier relié à l'arbre de commande du dispositif de coupe/coins arrondis au moyen d'un couplage flexible, rigide en torsion (afin de résoudre les problèmes liés à un mauvais alignement entre l'axe du bras de sortie et l'axe de commande du dispositif de coupe/coins arrondis) . L'utilisation de ces diverses lames ressort, au lieu d'articulations classiques permet de s'affranchir des problèmes d'usure et de jeu qui seraient liés à de telles articulations.an input arm 41 driven at constant speed; this input arm is coupled by two sets of crossed springs 42, 43 to one end of each of the two cam follower supports 44, 45, the other end of the first cam follower support being coupled to the other end of the second cam follower support by means of another leaf spring 46. In order to compensate for the variations in distance which may exist between the two cams 50, 51 (unless the two cams are machined perfectly, which, from the point of view of the cost would be very penalizing), the leaf spring 46 has a slightly convex shape (this characteristic does not appear in FIG. 3). Such an arrangement allows the cams to perfectly follow said stationary cams and therefore allows greater precision in the movement at variable angular speed, - an output arm 47 coupled to this cam / cam mechanism; each end of the output arm 47 is connected by a spring leaf 48, 49 respectively to one of the two said cam follower supports 44, 45, so that the rotational movement, induced by the stationary cams, of each cam follower support around the axis of articulation of each pair of crossed springs causes a proportional rotational movement of the output arm 47 relative to the input arm 41. The output arm 47 at a speed which, as shown in FIG. 4B oscillates around the value of the speed of the input arm 41. The output arm is according to a particular embodiment connected to the control shaft of the cutting device / rounded corners by means of a flexible, rigid coupling in torsion (in order to solve the problems linked to a bad alignment between the axis of the output arm and the control axis of the cutting device / rounded corners). The use of these various spring blades, instead of conventional joints makes it possible to overcome the problems of wear and play which would be linked to such joints.
Ainsi que représenté en Fig. 4B les variations maximales de vitesse entre le bras de sortie (courbe en traits pleins) et la vitesse nominale du bras d'entrée (axe des abscisses) sont dans le mode de réalisation représenté de ± 7 %. Ainsi que représenté à la Fig. 4A, cette différence de vitesse modifie la vitesse linéaire des outils de coupe/coins arrondis de telle sorte qu'elle corresponde parfaitement, sur un angle d'engagement d'environ 50° de l'outil, à la vitesse d'une bande se déplaçant à vitesse constante, la courbe en traits interrompus représentant la vitesse du bras d'entrée ; la courbe en traits continus représente la vitesse du bras de sortie, sensiblement constante sur environ 50°. L'utilisation d'un tel dispositif permet d'augmenter le temps d'engagement des outils de coupe/coins arrondis. As shown in Fig. 4B the maximum speed variations between the output arm (curve in solid lines) and the nominal speed of the input arm (abscissa axis) are in the illustrated embodiment of ± 7%. As shown in FIG. 4A, this difference in speed modifies the linear speed of the cutting tools / rounded corners so that it corresponds perfectly, over an engagement angle of approximately 50 ° of the tool, to the speed of a strip moving at constant speed, the curve in broken lines representing the speed of the input arm; the curve in solid lines represents the speed of the output arm, substantially constant over approximately 50 °. The use of such a device makes it possible to increase the engagement time of the cutting tools / rounded corners.

Claims

REVENDICATIONS 1 - Dispositif de coupe et coins arrondis pour un matériau en bande destiné à être découpé sous forme de feuilles sensiblement parallélépipédiques présentant des coins arrondis, ledit dispositif comprenant principalement : a) des moyens d'alimentation (1) et de guidage du matériau en bande, b) des moyens d'évacuation, de guidage et de réception des feuilles individuelles à coins arrondis, c) des moyens de coupe comportant un couteau (2) et un contre couteau (3) et des moyens permettant de réaliser les coins arrondis comportant deux modules poinçons/matrice (4, 5) disposés en regard l'un de l'autre de part et d'autre de la bande, lesdits moyens réalisant la coupe et les coins arrondis étant entraînés au moyen de deux doubles excentriques (6, 7), le premier double excentrique (6) entraînant le couteau (2) par l'intermédiaire d'un premier excentrique et, de manière solidaire, les deux poinçons (4) (ou les deux matrices) par l'intermédiaire d'un deuxième excentrique, le premier et le second excentrique étant en opposition de phase, le second double excentrique (7) entraînant le contre-couteau (3) par l'intermédiaire d'un troisième excentrique et, de manière solidaire les deux matrices (5) (ou les deux poinçons) par l'intermédiaire d'un quatrième excentrique, les troisième et quatrième excentrique étant en opposition de phase, les mouvements desdits premier et second double-excentriques présentant des phases de signe opposées. 2 - Dispositif selon la revendication 1, caractérisé en ce que chacun des doubles excentriques est entraîné à vitesse angulaire constante. 3 - Dispositif selon la revendication 1, caractérisé en ce que chacun des doubles excentriques est entraîné à vitesse variable au moyen d'un dispositif de couplage à vitesse angulaire variable de manière à communiquer aux moyens de coupe ainsi qu'aux moyens réalisant les coins arrondis une vitesse sensiblement égale à la vitesse du matériau en bande pendant sensiblement toute la période d'engagement desdits moyens et dudit matériau en bande. - Dispositif selon l'une quelconque des revendications 1 à 3, caractérisé en ce qu'il comprend en plus un dispositif à mouvement différentiel permettant d'accélérer le mouvement de la feuille qui vient juste d'être coupée par rapport à celui du matériau en bande. - Dispositif selon l'une quelconque des revendications 1 à 4, caractérisé en ce que les deux doubles- excentriques sont commandés par le même moteur. CLAIMS 1 - Cutting device and rounded corners for a strip material intended to be cut in the form of substantially rectangular sheets having rounded corners, said device mainly comprising: a) means for feeding (1) and guiding the material in strip, b) means for evacuating, guiding and receiving the individual sheets with rounded corners, c) cutting means comprising a knife (2) and a counter knife (3) and means making it possible to produce the rounded corners comprising two punch / die modules (4, 5) arranged opposite one another on either side of the strip, said means making the cut and the rounded corners being driven by means of two double eccentrics (6 , 7), the first double eccentric (6) driving the knife (2) via a first eccentric and, in an integral manner, the two punches (4) (or the two dies) via a deu xth eccentric, the first and the second eccentric being in phase opposition, the second double eccentric (7) driving the counter knife (3) via a third eccentric and, in a solid manner the two dies (5) (or the two punches) via a fourth eccentric, the third and fourth eccentric being in phase opposition, the movements of said first and second double-eccentrics having opposite sign phases. 2 - Device according to claim 1, characterized in that each of the double eccentrics is driven at constant angular speed. 3 - Device according to claim 1, characterized in that each of the double eccentrics is driven to variable speed by means of a variable angular speed coupling device so as to communicate to the cutting means as well as to the means producing the rounded corners a speed substantially equal to the speed of the strip material during substantially the entire period of engagement said means and said strip material. - Device according to any one of claims 1 to 3, characterized in that it further comprises a device with differential movement making it possible to accelerate the movement of the sheet which has just been cut with respect to that of the material in bandaged. - Device according to any one of claims 1 to 4, characterized in that the two double-eccentrics are controlled by the same motor.
EP92906750A 1991-02-20 1992-02-12 Cutting device and rounded corners for a strip material Expired - Lifetime EP0572516B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP96420238A EP0740985A3 (en) 1991-02-20 1992-02-12 Coupling mechanism with variable angular speed

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9102242A FR2672839A1 (en) 1991-02-20 1991-02-20 CUTTING DEVICE AND ROUNDED CORNERS FOR A STRIP MATERIAL.
FR9102242 1991-02-20
PCT/FR1992/000125 WO1992014588A1 (en) 1991-02-20 1992-02-12 Cutting device and rounded corners for a strip material

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EP96420238A Withdrawn EP0740985A3 (en) 1991-02-20 1992-02-12 Coupling mechanism with variable angular speed

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BR (1) BR9205650A (en)
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Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3433107A (en) * 1965-10-20 1969-03-18 Control Data Corp Rounded corner card cutter
US3653304A (en) * 1970-10-23 1972-04-04 Miller Printing Machinery Co Apparatus for cutting and creasing sheets
US3918313A (en) * 1974-07-19 1975-11-11 Pitney Bowes Inc Drive mechanism
FR2478143A1 (en) * 1980-03-11 1981-09-18 Staubli Sa Ets IMPROVEMENTS IN MODULATING MECHANISMS FOR THE CONTROL OF ROTARY RATIOS
DE3504297A1 (en) * 1985-02-08 1986-08-14 SMS Schloemann-Siemag AG, 4000 Düsseldorf Cropping shears for the front and rear end of running rolled strip

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9214588A1 *

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EP0572516B1 (en) 1997-05-02
JPH06505925A (en) 1994-07-07
FR2672839A1 (en) 1992-08-21
EP0740985A3 (en) 1997-08-27
WO1992014588A1 (en) 1992-09-03
DE69219462D1 (en) 1997-06-05
EP0740985A2 (en) 1996-11-06
DE69219462T2 (en) 1997-11-27
BR9205650A (en) 1994-05-03
JP2619191B2 (en) 1997-06-11
MX9200696A (en) 1994-03-31

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