EP0069017A1 - Rotary die cutting machine - Google Patents

Rotary die cutting machine Download PDF

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Publication number
EP0069017A1
EP0069017A1 EP82401177A EP82401177A EP0069017A1 EP 0069017 A1 EP0069017 A1 EP 0069017A1 EP 82401177 A EP82401177 A EP 82401177A EP 82401177 A EP82401177 A EP 82401177A EP 0069017 A1 EP0069017 A1 EP 0069017A1
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EP
European Patent Office
Prior art keywords
cylinder
cutting
wheel
counterpart
installation according
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.)
Withdrawn
Application number
EP82401177A
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German (de)
French (fr)
Inventor
Bernard Capdeboscq
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.)
Martin SA
Original Assignee
Martin SA
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Filing date
Publication date
Application filed by Martin SA filed Critical Martin SA
Publication of EP0069017A1 publication Critical patent/EP0069017A1/en
Withdrawn legal-status Critical Current

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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
    • B26D1/62—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 rotating about an axis parallel to the line of cut, e.g. mounted on a rotary cylinder
    • B26D1/626—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 rotating about an axis parallel to the line of cut, e.g. mounted on a rotary cylinder 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
    • B26D5/00—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D5/08—Means for actuating the cutting member to effect the cut
    • 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
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/08—Means for treating work or cutting member to facilitate 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
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/20—Cutting beds
    • 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
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/20—Cutting beds
    • B26D2007/202—Rollers or cylinders being pivoted during operation

Definitions

  • the present invention relates to a rotary blank cutting machine, intended in particular to be used in a unit for shaping corrugated boxes.
  • a rotary cutter of cardboard blanks essentially comprises two superimposed cylinders, with horizontal and parallel axes.
  • the first cylinder called “tool cylinder” or “cutting cylinder”
  • the other cylinder called a “counterpart cylinder” or “anvil cylinder”
  • a flexible coating such as polyurethane.
  • the cutting tool penetrates into the flexible coating of the counterpart, and by cutting effect cuts the sheet of cardboard driven continuously between the two cylinders, the latter being themselves driven in rotation by the general movement of the machine.
  • the connection between the two cylinders is fixed and ensured by a pinion transmission device.
  • the cutting precision is only satisfactory if the circumferential speeds of the two cylinders are in an appropriate ratio, taking into account the wear of the coating of 1s. counterpart and the penetration depth of the cutting tools in this coating.
  • the same remark is valid in the case where the cut shape carries non-cutting threads intended for the crushing backing of the cardboard plate: the positioning of the pushing back is satisfactory only if the circumferential speeds of the two cylinders are in a given ratio taking into account the wear of the coating and the penetration depth of the upsetting tool therein.
  • the present invention relates to a rotary cutting installation equipped with means making it possible to automatically obtain the circumferential speed ratio between the two cylinders which gives optimum cutting or upsetting precision.
  • Such an installation is characterized in that it is equipped with a device for driving the counterpart cylinder by means of a friction device driven from the cutting cylinder.
  • the rotary cutting installation of the invention comprises a supporting frame 1, an upper cutting cylinder 2, provided with a tool holder 3 and tools (4 , 5) and a cylinder against the lower part 6 coated, in a conventional manner, with a flexible polyurethane coating.
  • the cutting machine comprises a slide support 7, bolted to the frame 1 and parallel to the axis of the cylinders (2, 6) on which a rectification head 8 supporting can move. a cutting tool 9 intended for grinding by scraping of the cylinder 6.
  • the head 8 can move along the slide 7 parallel to the axis of the cylinder 6 using the conventional device with nut 10, endless 11, and motor 12 for driving the screw 11 in rotation, shown in FIGS. 1 and 2.
  • the rotation of cylinder 6 during the grinding operation with tool 9 can be obtained simply by driving the machine by the general movement of the total shaping installation of which it is a part.
  • the machine is assumed to be separated from the rest of the installation during the rectification phase, so that the rotational drive of the assembly during the rectification phase is carried out from an electric motor.
  • auxiliary 42 driving in rotation, by means of a toothed pinion 13, the toothed pinion 14 intended for driving the cylinder 2 and consequently, as will be explained below, of the cylinder 6.
  • the pinion 14 is precisely that which, when the machine is in place in the overall shaping installation, is driven by the general movement of said installation.
  • the toothed pinion 14 rotates the cylinder 2 using a shaft 15 and bearings (16,17).
  • the other end of the shaft 15 carries a wheel 18 of diameter equal to that of the cutting tools (4,5).
  • the lower cylinder 6 is extended, as can be seen in the drawings, by a wheel 19 placed under the wheel 18, and therefore resting thereon, of diameter equal to t / that of the cylinder 6 and coated with the same flexible polyurethane coating as the latter or at least with a soft coating of the same type, that is to say soft enough to be able to be rectified by the tool 9 to the same degree as this rectifies the cylinder 6.
  • the slide 7 is of sufficient length so that the tool 9, in its transverse movement, comes to rectify the wheel 19 exactly to the same diameter as the cylinder 6.
  • the toothed pinion 14 meshes with a pinion 20 of the same diameter which rotates, by means of a bearing 21, around an eccentric pinion 31 whose angular position is adjustable using a gear wheel device 32, chain 33, pinion shaft 34 and crank 35, the elements 31 to 35 being found symmetrically at the other end of the cylinder 6.
  • the eccentric shaft 22 of the cylinder 6 rotates in the two parts 31 by means of bearings 23. On the left side with respect to the figures, it is rigidly connected to the wheel 19 and on the right side it is connected via 'a freewheel 24 to a pinion 25 driven by meshing by the internal toothing of the pinion 20, as shown in the drawings.
  • the circumferential speed of the latter remains, thanks to the device of the invention, strictly equal to that of the cutting cylinder 2.
  • the pinions 14, 20 ′ and 25 gave angular speeds and circumferential speeds rigorously equal for the two cylinders.
  • the cylinder 6 has a smaller diameter, so that the latter is then, driven, at a higher angular speed but at unchanged circumferential speed, by friction of the wheel 18 on the wheel 19, rectified at same diameter as the cylinder 6.
  • the pinion 25 no longer drives anything because the free wheel 24 triggers, its angular speed being greater than that of said pinion 25.
  • the pinions 20 and 25 operate only in the event of incident creating a resistant overtorque, and therefore a slowdown of the whole.
  • FIGS. 5 and 6 schematically represent two examples of possible variants for driving the lower cylinder by friction from the upper cylinder, these two variants being in particular intended to be used when it is not possible, either for lack of space, or because one operates on an old installation, to place wheels such as the wheels 18 and 19 at the end of the shafts.
  • the cutting cylinder 2 is provided at its two ends with rings (50, 51) which directly drive the counterpart cylinder 6 by friction.
  • the rings 50 and 51 are then removed, so that the cylinder 6 is driven by the freewheel system 24 and pinions (20, 25) described above, which is of less importance because very precise cutting is not necessary for large formats.
  • FIG. 6 shows another possible variant of driving the cylinder 6 by friction from the cylinder 2.
  • a belt 52 is used which is wound in the opposite direction as shown around the cylinders 2 and 6, then around a idler 53.
  • the embodiment according to FIG. 1 consists, in short, in creating an "image" (18, 19), on a reduced scale in the longitudinal direction, of the cutting cylinders 2 and of counterpart 6.
  • the shaft connecting the wheel 19 to the cylinder 6 is a mechanical shaft.
  • the auxiliary drive pinion 20 and its associated freewheel 24 can very well be eliminated.
  • the cylinder 18 will be provided with tools reproducing, on a reduced scale in the longitudinal direction, the tools equipping the cutting cylinder 2.
  • the cylinder 19, then being mounted idly on its axis, will then take, because of its very low inertia, of itself the optimal speed resulting from the wear of its coating and the penetration depth of the tools. This speed, which then corresponds to the optimal speed for cutting or upsetting, is then automatically transmitted to the counterpart cylinder 6 via the electric or hydraulic shaft.
  • FIG. 7 is a schematic representation in longitudinal section of an installation of this type. As indicated above, this installation differs essentially from that of FIG. 1 by the fact that the wheel 19 drives the cylinder 6 via an electric shaft, and not not mechanical.
  • the wheel 19 is then mounted idle, using the bearings 40, on the shaft 22 of the cylinder 6. It drives a tachometric dynamo 41 which provides on its output 42 an electrical signal representative of its speed of rotation.
  • the speed signal 42 is applied to a comparator 43, provided with an electric power input 44, and supplying on its power output 45 an electric voltage to a variable speed electric motor driving the shaft 22 and therefore the cylinder 6 .
  • the power motor 46 is coupled to a tachometer generator 47 which supplies a regulation signal by its output 48 on the second comparison input of the comparator 43.
  • the rectification device which equips the installation of FIG. 1 has been eliminated.
  • the wheel 18 has been equipped with identical tools 4 ′ to the tools 4 fitted to the cylinder 2, but reduced in the longitudinal direction in the ratio of the longitudinal dimensions of the cylinders 18 and 2.
  • the reduced image of the cylinders 2 and 6 is reproduced exactly.
  • the cylinder 19 is coated with the same coating as the cylinder 6. This coating wearing out in the same way, and the inertia of the wheel 19 being negligible, the wheel 19 then assumes by itself the optimum circumferential speed. for cooperation (18, 19), and this optimum speed is transmitted to cylinder 6 by the electric shaft (41 to 48).

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  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Making Paper Articles (AREA)

Abstract

Rotary blank cutting machine, intended in particular to be used in a unit for making corrugated cardboard boxes. It is equipped with a device (13-19, 41 to 48) for driving the counterpart cylinder (6) via a friction device (18, 19) driven from the cutting cylinder (2). <IMAGE>

Description

La présente invention se rapporte à une machine de découpe rotative de flans, destinée en particulier à être utilisée dans une unité de façonnage de caisses en carton ondulé.The present invention relates to a rotary blank cutting machine, intended in particular to be used in a unit for shaping corrugated boxes.

D'une façon générale, un découpeur rotatif de flans en carton comporte essentiellement deux cylindres superposés, à axes horizontaux et parallèles. Le premier cylindre, appelé "cylindre porte-outils" ou "cylindre de coupe", porte les outils tranchants de découpe et les outils de refoulage correspondant à la forme de la caisae en carton. L'autre cylindre, appelé "cylindre de contre-partie"ou "cylindre d'enclume", est un cylindre revêtu d'un revêtement souple, tel que du polyuréthane.Generally, a rotary cutter of cardboard blanks essentially comprises two superimposed cylinders, with horizontal and parallel axes. The first cylinder, called "tool cylinder" or "cutting cylinder", carries the cutting cutting tools and the upsetting tools corresponding to the shape of the cardboard box. The other cylinder, called a "counterpart cylinder" or "anvil cylinder", is a cylinder coated with a flexible coating, such as polyurethane.

En cours d'opération, l'outil de découpe pénètre dans le revêtement souple de la contre-partie, et par effet tranchant découpe la feuille de carton entrainée en continu entre les deux cylindres, ces derniers étant eux-mêmes entrainés en rotation par le mouvement général de la machine. Dans les machines connues actuellement, la liaison entre les deux cylindres est fixe et assurée par un dispositif de transmission à pignons.During operation, the cutting tool penetrates into the flexible coating of the counterpart, and by cutting effect cuts the sheet of cardboard driven continuously between the two cylinders, the latter being themselves driven in rotation by the general movement of the machine. In currently known machines, the connection between the two cylinders is fixed and ensured by a pinion transmission device.

D'une manière générale, la précision de découpe n'est satisfaisante que si les vitesses circonférentielles des deux cylindres sont dans un rapport approprié, compte tenu de l'usure du revêtement de 1s. contre-partie et de la profondeur de pénétration des outils de découpe dans ce revêtement. La même remarque est valable dans le cas où la forme de découpe porte des filets non coupants destinés au refoulage par écrasement de la plaque de carton : le positionnement du refoulage n'est satisfaisant que si les vitesses circonférentielles des deux cylindres sont dans un rapport donné compte tenu de l'usure du revêtement et de la profondeur de pénétration de l'outil de refoulage dans celui-ci.In general, the cutting precision is only satisfactory if the circumferential speeds of the two cylinders are in an appropriate ratio, taking into account the wear of the coating of 1s. counterpart and the penetration depth of the cutting tools in this coating. The same remark is valid in the case where the cut shape carries non-cutting threads intended for the crushing backing of the cardboard plate: the positioning of the pushing back is satisfactory only if the circumferential speeds of the two cylinders are in a given ratio taking into account the wear of the coating and the penetration depth of the upsetting tool therein.

La présente invention se rapporte à une installation de découpe rotative équipée de moyens permettant d'obtenir automatiquement le rapport de vitesse circonférentielle entre les deux cylindres qui donne une précision de découpe ou de refoulage optimale. Une telle installation est caractérisée en ce qu'elle est équipée d'un dispositif d'entrainement du cylindre de contre-partie par l'intermédiaire d'un dispositif à friction entrainé à partir du cylindre de coupe.The present invention relates to a rotary cutting installation equipped with means making it possible to automatically obtain the circumferential speed ratio between the two cylinders which gives optimum cutting or upsetting precision. Such an installation is characterized in that it is equipped with a device for driving the counterpart cylinder by means of a friction device driven from the cutting cylinder.

L'invention sera mieux comprise à l'aide de la description suivante de quelques exemples de réalisation, en référence aux dessins annexés dans lesquels :

  • - la figure 1 est une vue perspective schématique d'une installation de découpe rotative de l'invention
  • - la figure 2 est une vue agrandie d'un outil de rectification équipant l'installation de la figure 1.
  • - la figure 3 est une vue schématique en coupe longitudinale de l'ensemble de la figure 1.
  • - la figure 4 est une vue schématique en coupe transversale selon la direction AA de la figure 3.
  • - la figure 5 est une vue perspective schématique d'une première variante d'entraînement par friction directe du cylindre de contre-partie de l'installation de l'invention.
  • - la figure 6 est une vue perspective d'nne seconde variante d'entrainement par friction directe du cylindre de contre-partie.
  • - la figure 7 est une vue schématique en coupe longitudinale d'une variante de réalisation de l'installation de la figure 1.
The invention will be better understood with the aid of the following description of a few exemplary embodiments, with reference to the accompanying drawings in which :
  • - Figure 1 is a schematic perspective view of a rotary cutting installation of the invention
  • - Figure 2 is an enlarged view of a grinding tool fitted to the installation of Figure 1.
  • - Figure 3 is a schematic view in longitudinal section of the assembly of Figure 1.
  • FIG. 4 is a schematic view in cross section in the direction AA of FIG. 3.
  • - Figure 5 is a schematic perspective view of a first variant of direct friction drive of the counterpart cylinder of the installation of the invention.
  • - Figure 6 is a perspective view of a second variant of direct friction drive of the counterpart cylinder.
  • FIG. 7 is a schematic view in longitudinal section of an alternative embodiment of the installation of FIG. 1.

En se référant à l'ensemble des figures 1 à 4, l'installation de découpe rotative de l'invention comporte un châssis porteur 1, un cylindre de coupe supérieur 2, muni d'un porte-outils 3 et d'outils (4,5) et un cylindre de contre partie inférieur 6 revêtu, de manière classique, d'un revêtement souple-en polyuréthane.Referring to all of FIGS. 1 to 4, the rotary cutting installation of the invention comprises a supporting frame 1, an upper cutting cylinder 2, provided with a tool holder 3 and tools (4 , 5) and a cylinder against the lower part 6 coated, in a conventional manner, with a flexible polyurethane coating.

De manière classique pour ce genre d'installation, la machine de découpe comporte un support à glissière 7, boulonné sur le châssis 1 et parallèle à l'axe des cylindres (2, 6) sur lequel peut se déplacer une tête de rectification 8 supportant un outil tranchant 9 destiné à la rectification par raclage du cylindre 6. La tête 8 peut se déplacer le long de la glissière 7 parallèlement à l'axe du cylindre 6 à l'aide du dispositif classique à écrou 10, vis-sans-fin 11, et moteur 12 d'entrainement en rotation de la vis 11, représenté sur les figures 1 et 2.Conventionally for this type of installation, the cutting machine comprises a slide support 7, bolted to the frame 1 and parallel to the axis of the cylinders (2, 6) on which a rectification head 8 supporting can move. a cutting tool 9 intended for grinding by scraping of the cylinder 6. The head 8 can move along the slide 7 parallel to the axis of the cylinder 6 using the conventional device with nut 10, endless 11, and motor 12 for driving the screw 11 in rotation, shown in FIGS. 1 and 2.

Comme on le voit en détail sur la figure 2, la rotation dans le sens trigonométrique du cylindre de contre-partie 6 entraine la rectification de celui-ci par raclage par l'outil 9, à condition bien entendu que le cylindre 6 soit suffisamment rapproché de la tête rectifieuse 8. Ce rapprochement est obtenu et règlé à l'aide du dispositif à excentrique équipant, de manière connue en soi, l'installation de découpe, et destiné à rapprocher de maière auto-parallèle le cylindre de contre-partie 6 du cylindre de coupe 2 afin de régler la profondeur de pénétration des outils de découpe (4,5).As seen in detail in Figure 2, the rotation in the counterclockwise direction of the counterpart cylinder 6 causes its rectification by scraping with the tool 9, provided of course that the cylinder 6 is sufficiently close of the grinding head 8. This approximation is obtained and adjusted using the eccentric device fitted, in a manner known per se, the cutting installation, and intended to bring the counterpart cylinder 6 closer to self-parallel of the cutting cylinder 2 in order to adjust the penetration depth of the cutting tools (4,5).

La rotation du cylindre 6 pendant l'opération de rectification à l'aide de l'outil 9 peut être obtenue tout simplement en entrainant la machine par le mouvement général de l'installation totale de façonnage dont elle fait partie. Dans l'exemple décrit ici, la machine est supposée séparée du reste de l'installation pendant la phase de rectification, de sorte que l'entrainement en rotation de l'ensemble pendant la phase de rectification est effectué à partir d'un moteur électrique auxiliaire 42 entrainant en rotation, par l'intermédiaire d'un pignon denté 13, le pignon denté 14 destiné à l'entrainement du cylindre 2 et par suite, comme on l'explicitera ci-dessous, du cylindre 6. Le pignon 14 est précisément celui qui, lorsque la machine est en place dans l'installation globale de façonnage, est entrainé par le mouvement général de ladite installation.The rotation of cylinder 6 during the grinding operation with tool 9 can be obtained simply by driving the machine by the general movement of the total shaping installation of which it is a part. In the example described here, the machine is assumed to be separated from the rest of the installation during the rectification phase, so that the rotational drive of the assembly during the rectification phase is carried out from an electric motor. auxiliary 42 driving in rotation, by means of a toothed pinion 13, the toothed pinion 14 intended for driving the cylinder 2 and consequently, as will be explained below, of the cylinder 6. The pinion 14 is precisely that which, when the machine is in place in the overall shaping installation, is driven by the general movement of said installation.

Le pignon denté 14 entraine en rotation le cylindre 2 à l'aide d'un arbre 15 et de roulements (16,17). Conformément à l'invention, l'autre extrémité de l'arbre 15 porte une roue 18 de diamètre égal à celui des outils de coupe (4,5). De la même manière, le cylindre inférieur 6 est prolongé, comme on le voit sur les dessins, par une roue 19 placée sous la roue 18, et donc en appui sur celle-ci, de diamètre égal ât/celui du cylindre 6 et revêtue du même revêtement souple en polyuréthane que ce dernier ou au minimum d'un revêtement mou de même type, c'est à dire assez mou pour pouvoir être rectifié par l'outil 9 au même degré que celui-ci rectifie le cylindre 6. Par ailleurs , la glissière 7 est de longueur suffisante pour que l'outil 9, dans son déplacement transversal, vienne rectifier la roue 19 exactement au même diamètre que le cylindre 6.The toothed pinion 14 rotates the cylinder 2 using a shaft 15 and bearings (16,17). According to the invention, the other end of the shaft 15 carries a wheel 18 of diameter equal to that of the cutting tools (4,5). In the same way, the lower cylinder 6 is extended, as can be seen in the drawings, by a wheel 19 placed under the wheel 18, and therefore resting thereon, of diameter equal to t / that of the cylinder 6 and coated with the same flexible polyurethane coating as the latter or at least with a soft coating of the same type, that is to say soft enough to be able to be rectified by the tool 9 to the same degree as this rectifies the cylinder 6. Furthermore, the slide 7 is of sufficient length so that the tool 9, in its transverse movement, comes to rectify the wheel 19 exactly to the same diameter as the cylinder 6.

Par ailleurs, commesur les machines classiques, le pignon denté 14 engrène sur un pignon 20 de même diamètre qui tourne, par l'intermédiaire d'un roulement 21, autour d'un pignon excentré 31 dont la position angulaire est réglable à l'aide d'un dispositif à roue dentée 32, chaine 33, arbre à pignon 34 et manivelle 35, les éléments 31 à 35 se retrouvant de manière symétrique à l'autre extrémité du cylindre 6.Furthermore, like conventional machines, the toothed pinion 14 meshes with a pinion 20 of the same diameter which rotates, by means of a bearing 21, around an eccentric pinion 31 whose angular position is adjustable using a gear wheel device 32, chain 33, pinion shaft 34 and crank 35, the elements 31 to 35 being found symmetrically at the other end of the cylinder 6.

L'arbre excentré 22 du cylindre 6 tourne dans les deux pièces 31 à l'aide de roulements 23. Du côté gauche par rapport aux figures, il est relié rigidement à la roue 19 et du côté droit il est relié par l'intermédiaire d'une roue libre 24 à un pignon 25 entrainé en engrènement par la denture intérieure du pignon 20, comme figuré sur les dessins.The eccentric shaft 22 of the cylinder 6 rotates in the two parts 31 by means of bearings 23. On the left side with respect to the figures, it is rigidly connected to the wheel 19 and on the right side it is connected via 'a freewheel 24 to a pinion 25 driven by meshing by the internal toothing of the pinion 20, as shown in the drawings.

Le fonctionnement du dispositif est le suivant :

  • Lorsque l'utilisateur estime que, compte tenu de l'usure du revêtement du cylindre 6, une opération de rectification de ce dernier est nécessaire, le découpeur représenté est isolé de l'ensemble de façonnage et les moteurs 12 et 42 sont mis en route. Le cylindre 6 tourne donc dans le sens direct, tandis que la tête rectifieuse 8 se déplace alternativement de gauche à droite le long de la vis 11, puis de droite à gauche le long de celle-ci par inversion du sens de rotation du moteur 12. Pour cette opération, l'opérateur a règle, à l'aide de la manivelle 35, les positions relatives du cylindre 6 et de l'outil 9, de manière à rectifier ledit cylindre de même que la roue 19 : on génère donc avec l'outil 9 sur le cylindre 6 une forme parfaitement cylindrique, mais de diamètre légèrement plus faible.
The operation of the device is as follows:
  • When the user considers that, given the wear on the coating of the cylinder 6, a rectification operation of the latter is necessary, the cutter shown is isolated from the shaping assembly and the motors 12 and 42 are started. The cylinder 6 therefore rotates in the direct direction, while the grinding head 8 moves alternately from left to right along the screw 11, then from right to left along the latter by reversing the direction of rotation of the motor 12 For this operation, the operator has adjusted, using the crank 35, the relative positions of the cylinder 6 and the tool 9, so as to rectify said cylinder as well as the wheel 19: the tool 9 on the cylinder 6 has a perfectly cylindrical shape, but of slightly smaller diameter.

En dépit de la diminution en diamètre du cylindre 6, la vitesse circonférentielle de celui-ci reste, grâce au dispositif de l'invention, rigoureusement égale à celle du cylindre de coupe 2. En effet, tant que les cylindres 2 et 6 étaient de diamètre rigoureusement égaux, les pignons 14, 20'et 25 donnaient des vitesses angulaires et des vitesses circonférentielles rigoureusement égales pour les deux cylindres. Après l'opération de rectification, le cylindre 6 a un diamètre plus faible, de sorte que ce dernier est alors,entrainé, à vitesse angulaire plus grande mais à vitesse circonférentielle inchangée, par friction de la roue 18 sur la roue 19, rectifiée au même diamètre que le cylindre 6. Le pignon 25 n'entraine plus rien car la roue libre 24 déclenche, sa vitesse angulaire étant supérieure à celle dudit pignon 25. Par la suite, les pignons 20 et 25 ne fonctionnent qu'en cas d'incident créant un surcouple résistant, et donc un ralentissement de l'ensemble.Despite the decrease in diameter of the cylinder 6, the circumferential speed of the latter remains, thanks to the device of the invention, strictly equal to that of the cutting cylinder 2. In fact, as long as the cylinders 2 and 6 were of rigorously equal in diameter, the pinions 14, 20 ′ and 25 gave angular speeds and circumferential speeds rigorously equal for the two cylinders. After the rectification operation, the cylinder 6 has a smaller diameter, so that the latter is then, driven, at a higher angular speed but at unchanged circumferential speed, by friction of the wheel 18 on the wheel 19, rectified at same diameter as the cylinder 6. The pinion 25 no longer drives anything because the free wheel 24 triggers, its angular speed being greater than that of said pinion 25. Subsequently, the pinions 20 and 25 operate only in the event of incident creating a resistant overtorque, and therefore a slowdown of the whole.

On remarquera avec intérêt que, le rapprochement du cylindre 6 par rapport au cylindre 2 s'effectuant à l'aide d'un dispositif à excentrique, ce rapprochement ne se fait pas suivant un plan vertical, mais selon un mouvement circulaire ascendant, c'est à dire que le cylindre 6 se déplace non seulement vers le haut mais également vers l'avant dans sonopération de rapprochement, ce qui permet de manière très avantageuse de réaliser l'opération de rectification. On combine ainsi la nécessité de rapprochement du cylindre inférieur due à l'usure de son revêtement à l'opération de rectification conforme à l'invention.It will be noted with interest that, the approximation of the cylinder 6 relative to the cylinder 2 being effected by means of an eccentric device, this approximation does not take place along a vertical plane, but according to an ascending circular movement, it that is to say that the cylinder 6 moves not only upwards but also forwards in its approximation operation, which very advantageously allows the rectification operation to be carried out. This combines the need to bring the lower cylinder closer due to the wear of its coating to the grinding operation according to the invention.

Il va de soi que, après l'opération de rectification, l'opérateur bloque la manivelle 35 dans une position permettant une découpe correcte des flans et on remarquera que, par cette opération, on garantit le bon appui de la roue 18, et donc le bon effet d'entrainement par friction.It goes without saying that, after the rectification operation, the operator blocks the crank 35 in a position allowing correct cutting of the blanks and it will be noted that, by this operation, the good support of the wheel 18 is guaranteed, and therefore the good friction training effect.

Les figures 5 et 6 représentent schématiquement deux exemples de variantes possibles d'entrainement du cylindre inférieur par friction à partir du cylindre supérieur, ces deux variantes étant en particulier destinées à être utilisées lorsqu'il n'est pas possible, soit par manque de place, soit parce que l'on opére sur une installation ancienne, de placer des roues telles que les roues 18 et 19 en bout d'arbres.FIGS. 5 and 6 schematically represent two examples of possible variants for driving the lower cylinder by friction from the upper cylinder, these two variants being in particular intended to be used when it is not possible, either for lack of space, or because one operates on an old installation, to place wheels such as the wheels 18 and 19 at the end of the shafts.

Dans la variante selon la figure 5, le cylindre de coupe 2 est muni à ses deux extrémités de bagues (50, 51) qui entrainent directement le cylindre de contre-partie 6 par friction. Dans le cas de feuilles de grands formats, on enlève alors les bagues 50 et 51, de sorte que le cylindre 6 est entrainé par le système à roue libre 24 et pignons (20, 25) décrit précédemment, ce qui est de moindre importance car une découpe très précise n'est pas nécessaire pour les grands formats.In the variant according to FIG. 5, the cutting cylinder 2 is provided at its two ends with rings (50, 51) which directly drive the counterpart cylinder 6 by friction. In the case of large-format sheets, the rings 50 and 51 are then removed, so that the cylinder 6 is driven by the freewheel system 24 and pinions (20, 25) described above, which is of less importance because very precise cutting is not necessary for large formats.

La figure 6 montre une autre variante possible d'entrainement du cylindre 6 par friction à partir du cylindre 2. On utilise dans ce cas une courroie 52 s'enroulant en sens inverse comme représenté autour des cylindres 2 et 6, puis autour d'une roue de renvoi 53.FIG. 6 shows another possible variant of driving the cylinder 6 by friction from the cylinder 2. In this case, a belt 52 is used which is wound in the opposite direction as shown around the cylinders 2 and 6, then around a idler 53.

On remarque avec intérêt que la forme de réalisation selon la figure 1 consiste en somme à créer une "image" (18, 19), à échelle réduite dans le sens longitudinal, des cylindres de coupe 2 et de contre-partie 6. Dans cette forme de réalisation en particulier, il n'est pas du tout obligatoire que l'arbre reliant la roue 19 au cylindre 6 soit un arbre mécanique. Pour éviter le patinage aux changements de régime, patinage dû à la grande inertie mécanique du cylindre 6, on peut très bien relier le cylindre 19 au cylindre 6 par un arbre électrique ou hydraulique. Dans ce cas, le pignon d'entrainement auxiliaire 20 et sa roue libre associée 24 peuvent très bien être supprimés.It is interesting to note that the embodiment according to FIG. 1 consists, in short, in creating an "image" (18, 19), on a reduced scale in the longitudinal direction, of the cutting cylinders 2 and of counterpart 6. In this embodiment in particular, it is not at all mandatory that the shaft connecting the wheel 19 to the cylinder 6 is a mechanical shaft. To avoid slippage at changes in speed, slippage due to the great mechanical inertia of the cylinder 6, it is very possible to connect the cylinder 19 to the cylinder 6 by an electric or hydraulic shaft. In this case, the auxiliary drive pinion 20 and its associated freewheel 24 can very well be eliminated.

Dans un tel mode de réalisation, on pourra même aller jusqu'à supprimer le dispositif (7 à 12) de rectification. Dans ce cas, on munira le cylindre 18 d'outils reproduisant, à échelle réduite dans le sens longitudinal, les outils équipant le cylindre de coupe 2. Le cylindre 19, étant alors monté fou sur son axe, prendra alors, en raison de sa très faible inertie, de lui-même la vitesse optimale découlant de l'usure de son revêtement et de la profondeur de pénétration des outils. Cette vitesse, qui correspond alors à la vitesse optimale pour la découpe ou le refoulage, est alors automatiquement transmise au cylindre de contre-partie 6 par l'intermédiaire de l'arbre électrique ou hydraulique.In such an embodiment, one could even go as far as removing the device (7 to 12) for rectification. In this case, the cylinder 18 will be provided with tools reproducing, on a reduced scale in the longitudinal direction, the tools equipping the cutting cylinder 2. The cylinder 19, then being mounted idly on its axis, will then take, because of its very low inertia, of itself the optimal speed resulting from the wear of its coating and the penetration depth of the tools. This speed, which then corresponds to the optimal speed for cutting or upsetting, is then automatically transmitted to the counterpart cylinder 6 via the electric or hydraulic shaft.

La figure 7 est une représentation schématique en coupe longitudinale d'une installation de ce type. Comme indiqué ci-dessus, cette installation diffère essentiellement de celle de la figure 1 par le fait que la roue 19 entraine le cylindre 6 par l'intermédiaire d'un arbre électrique, et non pas mécanique.Figure 7 is a schematic representation in longitudinal section of an installation of this type. As indicated above, this installation differs essentially from that of FIG. 1 by the fact that the wheel 19 drives the cylinder 6 via an electric shaft, and not not mechanical.

La roue 19 est alors montée folle, à l'aide des roulements 40, sur l'arbre 22 du cylindre 6. Elle entraine une dynamo tachymétrique 41 qui fournit sur sa sortie 42 un signal électrique représentatif de sa vitesse de rotation. Le signal de vitesse 42 est appliqué à un comparateur 43, muni d'une entrée de puissance électrique 44, et fournissant sur sa sortie de puissance 45 une tension électrique à un moteur électrique à vitesse variable entrainant l'arbre 22 et donc le cylindre 6.The wheel 19 is then mounted idle, using the bearings 40, on the shaft 22 of the cylinder 6. It drives a tachometric dynamo 41 which provides on its output 42 an electrical signal representative of its speed of rotation. The speed signal 42 is applied to a comparator 43, provided with an electric power input 44, and supplying on its power output 45 an electric voltage to a variable speed electric motor driving the shaft 22 and therefore the cylinder 6 .

De manière classique, le moteur de puissance 46 est accouplé à une génératrice tachymétrique 47 qui fournit un signal de régulation par sa sortie 48 sur la seconde entrée de comparaison du comparateur 43.Conventionally, the power motor 46 is coupled to a tachometer generator 47 which supplies a regulation signal by its output 48 on the second comparison input of the comparator 43.

Avantageusement par ailleurs, on a supprimé dans cette forme de réalisation le dispositif de rectification qui équipait l'installation de la figure 1. De façon à entrainer le cylindre 6 à la vitesse optimale, on a équipé la roue 18 d'outils 4' identiques aux outils 4 équipant le cylindre 2, mais réduits dans le sens longitudinal dans le rapport des dimensions longitudinales des cylindres 18 et 2. On reproduit donc ainsi à l'aide des cylindres 18 et 19 exactement l'image réduite des cylindres 2 et 6. Evidemment, le cylindre 19 est revêtu du même revêtement que le cylindre 6. Ce revêtement s'usant de la même manière, et l'inertie de la roue 19 étant négligeable, la roue 19 prend alors d'elle-même la vitesse circonférentielle optimale pour la coopération (18, 19), et cette vitesse optimale est transmise au cylindre 6 par l'arbre électrique (41 à 48).Advantageously, moreover, in this embodiment, the rectification device which equips the installation of FIG. 1 has been eliminated. In order to drive the cylinder 6 at the optimum speed, the wheel 18 has been equipped with identical tools 4 ′ to the tools 4 fitted to the cylinder 2, but reduced in the longitudinal direction in the ratio of the longitudinal dimensions of the cylinders 18 and 2. Thus, with the aid of the cylinders 18 and 19, the reduced image of the cylinders 2 and 6 is reproduced exactly. Obviously, the cylinder 19 is coated with the same coating as the cylinder 6. This coating wearing out in the same way, and the inertia of the wheel 19 being negligible, the wheel 19 then assumes by itself the optimum circumferential speed. for cooperation (18, 19), and this optimum speed is transmitted to cylinder 6 by the electric shaft (41 to 48).

Claims (8)

1.- Installation de découpe rotative de flans, du type comportant un "cylindre de coupe" (2) équipé d'outils (4,5) de découpe et/ou de refoulage'des flans, et un "cylindre de contre-partie" (6) revêtu d'un revêtement souple, caractérisée en ce qu'elle est équipée d'un dispositif (18-19-22, 50-51,52-53,18-19-41 à 48) d'entrainement du cylindre de contre-partie par l'intermédiaire d'un dispositif à friction entrainé à partir du cylindre de coupe.1.- Installation for rotary blank cutting, of the type comprising a "cutting cylinder" (2) fitted with tools (4,5) for cutting and / or pressing blanks, and a "counterpart cylinder" "(6) coated with a flexible coating, characterized in that it is equipped with a device (18-19-22, 50-51,52-53,18-19-41 to 48) for driving the counterpart cylinder by means of a friction device driven from the cutting cylinder. 2.- Installation de découpe rotative selon la revendication 1, caractérisée en ce qu'elle est en outre munie d'un dispositif d'entraine- ment du cylindre de contre-partie par le cylindre de coupe du type à pignons (14,20,25) et roue libre (24), ledit dispositif'd'entrainement étant construit de manière à entrainer ledit cylindre de contre-partie par ledit cylindre de coupe lorsque ceux-ci ont des diamètres égaux.2. Rotary cutting installation according to claim 1, characterized in that it is further provided with a device for driving the counterpart cylinder by the pinion type cutting cylinder (14,20 , 25) and freewheel (24), said drive device being constructed so as to drive said counterpart cylinder by said cutting cylinder when these have equal diameters. 3.- Installation de découpe rotative selon la revendication 1, ou la revendication 2, caractérisée en ce que ledit dispositif à friction comporte une première roue (18) fixée en bout d'arbre du cylindre de coupe, et de diamètre égal à celui-ci, et une deuxième roue (19) placée de manière à être en appui sur la première roue et revêtue d'une matière de même type que celle revêtant le cylindre de contre-partie, ladite deuxième roue entrainant le cylindre de contre-partie.3.- rotary cutting installation according to claim 1, or claim 2, characterized in that said friction device comprises a first wheel (18) fixed at the end of the shaft of the cutting cylinder, and of diameter equal to that- ci, and a second wheel (19) placed so as to bear on the first wheel and coated with a material of the same type as that covering the counterpart cylinder, said second wheel driving the counterpart cylinder. 4.- Installation de découpe rotative selon la revendication 3, caractérisée en ce que la deuxième roue (19) est reliée au cylindre de contre-partie (6) par un arbre électrique (41 à 48) ou hydraulique.4. Rotary cutting installation according to claim 3, characterized in that the second wheel (19) is connected to the counterpart cylinder (6) by an electric shaft (41 to 48) or hydraulic. 5.- Installation de découpe rotative selon la revendication 4, caractérisée en ce que la première roue (18) est revêtue des mêmes outils (4') que les outils (4) équipant le cylindre de coupe (2), mais réduits en dimensions dans le sens longitudinal dans le rapport des dimensions longitudinales de ladite première roue (18) et du cylindre de coupe (2), de manière à reproduire à l'aide des deux roues (18-19) l'image réduite des deux cylindres (2 et 6).5. Rotary cutting installation according to claim 4, characterized in that the first wheel (18) is coated with the same tools (4 ') as the tools (4) equipping the cutting cylinder (2), but reduced in size in the longitudinal direction in the ratio of the longitudinal dimensions of said first wheel (18) and the cutting cylinder (2), so as to reproduce using the two wheels (18-19) the reduced image of the two cylinders ( 2 and 6). 6.- Installation de découpe rotative selon l'une quelcnnque des revendications 3 à 5, caractérisée en ce que la deuxième roue (19) est montée coaxiale avec le cylindre de contre-partie (6), et en ce que l'installation est équipée d'un dispositif (7 à 12) de rectification intermittente du cylindre de contre-partie comportant un outil (9) susceptible de se déplacer parallèlement à l'axe longitudinal dudit cylindre, ladite deuxième roue (19) étant par ailleurs placée sur le trajet de l'outil de rectification (9) de manière à pouvoir être rectifiélau même diamètre que celui dudit cylindre de coupe (figure 1).6.- Rotary cutting installation according to any of claims 3 to 5, characterized in that the second wheel (19) is mounted coaxial with the counterpart cylinder (6), and in that the installation is equipped with a device (7 to 12) for intermittent rectification of the counterpart cylinder comprising a tool (9) capable of moving parallel to the longitudinal axis of said cylinder, said second wheel (19) being moreover placed on the path of the grinding tool (9) so that it can be grinded to the same diameter as that of said cutting cylinder (figure 1). 7.- Installation selon la revendication 1 ou la revendication 2, caractérisée en ce que ledit dispositif d'entrainement comporte une ou plusieurs bagues (50, 51) entourant le cylindre de coupe (figure 5).7.- Installation according to claim 1 or claim 2, characterized in that said drive device comprises one or more rings (50, 51) surrounding the cutting cylinder (Figure 5). 8.- INstallation selon la revendication 1 ou la revendication 2, caractérisée en ce que ledit dispositif d'entrainement comporte au moins une courroie (52) s'enroulant en sens inverse autour des deux cylindres (2,6) puis autour d'une roue de renvoi (53, figure 6).8.- Installation according to claim 1 or claim 2, characterized in that said drive device comprises at least one belt (52) winding in opposite directions around the two cylinders (2,6) then around a idler wheel (53, figure 6).
EP82401177A 1981-06-30 1982-06-25 Rotary die cutting machine Withdrawn EP0069017A1 (en)

Applications Claiming Priority (2)

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FR8112813A FR2508378A1 (en) 1981-06-30 1981-06-30 FLOW ROTATING DECK INSTALLATION
FR8112813 1981-06-30

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2573344A1 (en) * 1984-11-21 1986-05-23 Bobst Sa MACHINE FOR TREATING BAND MATERIAL
US4736660A (en) * 1986-05-21 1988-04-12 The Ward Machinery Company Rotary die-cut apparatus and gearing arrangement therein
GB2241460A (en) * 1990-02-28 1991-09-04 Simon Container Mach Ltd A rotary die cutting apparatus
WO1998031517A1 (en) * 1997-01-16 1998-07-23 Schober Gmbh Werkzeug- Und Maschinenbau Device for rotational cutting of band-shaped material
WO1999038657A1 (en) * 1998-01-30 1999-08-05 Jagenberg Papiertechnik Gmbh Machine for cross-cutting lines of material
WO2004048051A1 (en) * 2002-11-28 2004-06-10 Cimco, S.L. Rotary die cutter
WO2005005134A1 (en) * 2003-07-10 2005-01-20 Novawell Wellpappenmaschinen Gmbh Grinding device
CN110103275A (en) * 2019-05-22 2019-08-09 湖北东创机械设备有限公司 A kind of corrugated paper transverse cutting unit rotor

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07698U (en) * 1993-06-14 1995-01-06 浮田工業株式会社 Rotary die cutter

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE143273C (en) *
FR475838A (en) * 1913-08-07 1915-06-17 Henry Drysdale Improvements in machines for performing operations, such as printing, embossing, cutting or notching, on a continuous web of paper or other suitable material
FR1575848A (en) * 1968-05-31 1969-07-25
FR2278458A1 (en) * 1974-07-16 1976-02-13 Moore Business Forms Inc ROTARY CUTTING MACHINE
GB2056355A (en) * 1979-07-31 1981-03-18 Mitsubishi Heavy Ind Ltd Rotary die cutter
US4269093A (en) * 1979-03-29 1981-05-26 Cincinnnati Rotary Press Company Rotary die cutting machine

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE143273C (en) *
FR475838A (en) * 1913-08-07 1915-06-17 Henry Drysdale Improvements in machines for performing operations, such as printing, embossing, cutting or notching, on a continuous web of paper or other suitable material
FR1575848A (en) * 1968-05-31 1969-07-25
FR2278458A1 (en) * 1974-07-16 1976-02-13 Moore Business Forms Inc ROTARY CUTTING MACHINE
US4269093A (en) * 1979-03-29 1981-05-26 Cincinnnati Rotary Press Company Rotary die cutting machine
GB2056355A (en) * 1979-07-31 1981-03-18 Mitsubishi Heavy Ind Ltd Rotary die cutter

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2573344A1 (en) * 1984-11-21 1986-05-23 Bobst Sa MACHINE FOR TREATING BAND MATERIAL
US4736660A (en) * 1986-05-21 1988-04-12 The Ward Machinery Company Rotary die-cut apparatus and gearing arrangement therein
GB2241460A (en) * 1990-02-28 1991-09-04 Simon Container Mach Ltd A rotary die cutting apparatus
GB2241460B (en) * 1990-02-28 1994-02-09 Simon Container Mach Ltd A rotary die cutting apparatus
WO1998031517A1 (en) * 1997-01-16 1998-07-23 Schober Gmbh Werkzeug- Und Maschinenbau Device for rotational cutting of band-shaped material
WO1999038657A1 (en) * 1998-01-30 1999-08-05 Jagenberg Papiertechnik Gmbh Machine for cross-cutting lines of material
WO2004048051A1 (en) * 2002-11-28 2004-06-10 Cimco, S.L. Rotary die cutter
ES2232258A1 (en) * 2002-11-28 2005-05-16 Cimco, S.L. Rotary die cutter
WO2005005134A1 (en) * 2003-07-10 2005-01-20 Novawell Wellpappenmaschinen Gmbh Grinding device
CN110103275A (en) * 2019-05-22 2019-08-09 湖北东创机械设备有限公司 A kind of corrugated paper transverse cutting unit rotor

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FR2508378A1 (en) 1982-12-31
JPS5810498A (en) 1983-01-21

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