EP0334226A1 - Fastening mechanism for rotating tools - Google Patents

Fastening mechanism for rotating tools Download PDF

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Publication number
EP0334226A1
EP0334226A1 EP89104783A EP89104783A EP0334226A1 EP 0334226 A1 EP0334226 A1 EP 0334226A1 EP 89104783 A EP89104783 A EP 89104783A EP 89104783 A EP89104783 A EP 89104783A EP 0334226 A1 EP0334226 A1 EP 0334226A1
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EP
European Patent Office
Prior art keywords
circular
tools
crown
rotary shaft
faces
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
EP89104783A
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German (de)
French (fr)
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EP0334226B1 (en
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
Priority to AT89104783T priority Critical patent/ATE75178T1/en
Publication of EP0334226A1 publication Critical patent/EP0334226A1/en
Application granted granted Critical
Publication of EP0334226B1 publication Critical patent/EP0334226B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/26—Means for mounting or adjusting the cutting member; Means for adjusting the stroke of the cutting member
    • B26D7/2614—Means for mounting the cutting member
    • 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
    • B26D7/26—Means for mounting or adjusting the cutting member; Means for adjusting the stroke of the cutting member
    • B26D7/2628—Means for adjusting the position of the cutting member
    • B26D7/2642—Means for adjusting the position of the cutting member for slotting cutters
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/465—Cutting motion of tool has component in direction of moving work
    • Y10T83/4766—Orbital motion of cutting blade
    • Y10T83/4795—Rotary tool
    • Y10T83/4798—Segmented disc slitting or slotting tool
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/929—Tool or tool with support
    • Y10T83/9372—Rotatable type
    • Y10T83/9377—Mounting of tool about rod-type shaft
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/929—Tool or tool with support
    • Y10T83/9372—Rotatable type
    • Y10T83/9403—Disc type
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/929—Tool or tool with support
    • Y10T83/9457—Joint or connection
    • Y10T83/9464—For rotary tool
    • Y10T83/9469—Adjustable

Definitions

  • the tools supported by a circular device are in the form of annular sectors angularly movable so as to be able to carry out simultaneous operations in several places of the material to be worked, these annular sectors constituting either a tool for cutting is a repressor to work a material such as cardboard or corrugated cardboard.
  • said machines comprise an upper rotary shaft supporting circular devices equipped with cutting or pressing tools and a lower rotary shaft supporting circular counterparts placed opposite said circular devices mounted on the upper rotary shaft.
  • Cutting and upsetting tools will generally be called cutting blades and upsetting blades.
  • the blades being displaceable angularly around the circumference of the circular apparatus, it will be possible, using for example two non-adjacent cutting blades, to make two cuts per revolution of the rotary shaft, i.e. a cutting on the front and a cut on the back of a material plate.
  • the invention refers to a device for fixing tools on at least one circular device, in particular on a circular device which can be moved laterally along a rotary shaft supporting at least one circular device, said device for fastening comprising means for supporting said tools, means for holding tools against said means for supporting them and means for moving said means for holding tools, characterized in that the means for supporting the tools consist of a circular crown of which one of the faces is provided with circular housings distributed circumferentially over a constant radius having its center at the axis of the rotary shaft and by an internal toothed crown housed, so as to be able to rotate, in said circular crown, the toothed crown interior also being fitted on one of its faces of circular housings or bores distributed circumferentially over a constant radius also having its center at the axis of the rotary shaft, in that the means for holding the tools consist of a circular flange, one of the faces of which comprises two concentric grooves, said face of the circular flange being provided with at least one rod extending per
  • the device according to the invention has the advantage of holding the tools in position while allowing axial movement of the tool retaining means to cause the simultaneous opening of each consecutive device located on the rotary shaft, thereby allowing the accessibility to the tools so that they can be dismantled and reassembled easily and quickly.
  • circular devices A, B and C are placed side by side along a rotary shaft 1. Their lateral position depends on the places where operations, for example cutting or pressing, will have to be performed on a plate of material to be worked (not shown).
  • the circular devices A, B and C are provided, at their circumferences, with tools, in the particular case of the cutting blades 2 which can be adjusted angularly with respect to one another (see FIG. 3). It goes without saying that the number of circular devices 3 mounted on the rotary shaft 1 can vary as required and that the number of cutting blades 2 placed at the circumference of the circular devices A, B and C can also vary.
  • Each circular device A, B or C generally consists of a circular crown 4 keyed to the rotary shaft 1 and a circular flange 5 between which the cutting blades are disposed 2.
  • the circular crown 4 is equipped with an inner ring gear 6 meshing with a pinion 7 mounted on a shaft 8 passing through all the circular devices and rotating with them (see Figure 3).
  • the face 9 of the circular crown 4 has, at regular intervals and on a constant radius R having its origin at the axis of the rotary shaft 1, bores 10.
  • the toothed crown inner 6 is also arranged so as to have on its face 11 bores 12 of the same diameter as the bores 10. These bores 12 are also distributed at regular intervals over a constant radius R1 (see FIG.
  • the cutting blade 2 has on each of its faces a stud 22, respectively 23.
  • a stud 22, respectively 23 it is possible, by simply reversing the cutting blade 2, to obtain either a "fixed blade” version or a “movable or angularly movable blade” version.
  • the stud 23 engages with play in the concentric groove 21 which allows the clamping of the blade under the effect of the return spring or springs 18.
  • This arrangement has the advantage of being able to use either a fixed blade for a movable blade and vice versa.
  • FIG. 2 represents the circular devices 3 in their open position, that is to say in the position allowing the exchange of the different cutting blades 2.
  • the circular devices 3 can be moved laterally along the rotary shaft 1. This movement is carried out using a fork 24 engaging in a groove 25 arranged in the circular crown 4. It can therefore be noted that, if one moves, to the left of the figure, the circular apparatus B while maintaining the circular apparatus A in a given position, there will be a displacement of the circular ring 5 of the circular apparatus A. This displacement will create an opening 26 and the blade can then be easily removed 2 of the circular device A, and if necessary replace it.
  • All devices A, B and C are therefore open, it will be easy to dismantle the old cutting blades and replace them with new ones.
  • the pins 22 and 23 are sufficient to maintain the cutting blades 2 against the circular crown 4 but one could imagine ensuring this maintenance by equipping them, for example with magnetic pads 28 (see Figure 3).
  • the user of the invention has a device allowing rapid assembly and disassembly of the cutting blades or tools carried by one or more circular devices enabling him to perform in a very limited time the operations while thus ensuring a yield and an improved production rate of the machine thus equipped.

Abstract

The device comprises a circular ring (4) provided with circular housings (10) equally distributed on a constant radius. The said circular ring (4) is fitted with an interior toothed ring (6) also provided with circular housings (12). Tools, in the form of cutting blades (2), are fixed against the circular ring (4) by means of studs (22) engaging in the circular housings (10) if they are fixed tools or by means of studs (23) engaging in the circular housings (12) if they are mobile tools. The fixed or mobile tool version is obtained by turning the said tool over on itself. The clamping of tools against the circular ring is obtained by means of a circular ring (5) whose pressure is provided by a rod (15) acting on a spring (18), the said rod traversing the circular ring (4). The opening of the devices (A, B and C) is caused by the action either of a device (A, B or C) on the head of one of the rods (15) or by the action of a pressure ring (27). <IMAGE>

Description

La présente invention concerne un dispositif de fixation d'outils sur au moins un appareil circulaire notamment sur un appareil circulaire déplaçable latéralement le long d'un arbre rotatif supportant au moins l'un de ces appareils circulaires.The present invention relates to a device for attaching tools to at least one circular device, in particular to a circular device which can be moved laterally along a rotary shaft supporting at least one of these circular devices.

Dans les machines connues à ce jour, les outils supportés par un appareil circulaire se présentent sous la forme de secteurs annulaires déplaçables angulairement de façon à pouvoir effectuer des opérations simultanées en plusieurs endroits de la matière à travailler, ces secteurs annulaires constituant soit un outil de découpage soit un outil de refoulage pour travailler une matière telle que des plaques de carton ou de carton ondulé. Généralement, lesdites machines comportent un arbre rotatif supérieur supportant les appareils circulaires équipés des outils de découpage ou de refoulage et un arbre rotatif inférieur supportant quant à lui des contreparties circulaires placées en regard desdits appareils circulaires montés sur l'arbre rotatif supérieur.In the machines known to date, the tools supported by a circular device are in the form of annular sectors angularly movable so as to be able to carry out simultaneous operations in several places of the material to be worked, these annular sectors constituting either a tool for cutting is a repressor to work a material such as cardboard or corrugated cardboard. Generally, said machines comprise an upper rotary shaft supporting circular devices equipped with cutting or pressing tools and a lower rotary shaft supporting circular counterparts placed opposite said circular devices mounted on the upper rotary shaft.

Les outils de découpage et de refoulage seront de manière générale appelés lames de découpage et lames de refoulage.Cutting and upsetting tools will generally be called cutting blades and upsetting blades.

Ces lames de découpage et de refoulage agissent conjointement avec des contre-lames placées à la circonférence des contreparties circulaires montées sur l'arbre rotatif inférieur, en vue d'effectuer des fentes, des coupes d'onglets et des refoulages sur les plaques de carton ou de carton ondulé passant entre lesdits outils de découpage et de refoulage.These cutting and pushing blades act in conjunction with counterblades placed on the circumference of the circular counterparts mounted on the lower rotary shaft, in order to make slits, miter cuts and presses on the cardboard plates or corrugated cardboard passing between said cutting and upsetting tools.

Comme indiqué plus haut, les lames étant déplaçables angulairement sur la circonférence de l'appareil circulaire, il sera possible, en utilisant par exemple deux lames de découpage non adjacentes, d'effectuer deux découpes par tour de l'arbre rotatif, soit une découpe sur l'avant et une découpe sur l'arrière d'une plaque de matériau.As indicated above, the blades being displaceable angularly around the circumference of the circular apparatus, it will be possible, using for example two non-adjacent cutting blades, to make two cuts per revolution of the rotary shaft, i.e. a cutting on the front and a cut on the back of a material plate.

De façon à tenir compte du format en longueur des plaques de matériau à travailler, il est avantageux de disposer, sur la circonférence d'un appareil circulaire au moins d'une première lame fixe et d'une seconde lame déplaçable angulairement. Pour tenir compte du format en largeur des plaques de matériau à travailler, on disposera, côte à côte sur un même arbre rotatif, plusieurs appareils circulaires équipés de lames de découpage ou de refoulage.In order to take account of the length format of the plates of material to be worked, it is advantageous to have, on the circumference of a circular device at least a first fixed blade and a second blade that can be moved angularly. To take into account the width format of the plates of material to be worked, there will be placed, side by side on the same rotary shaft, several circular devices equipped with cutting or upsetting blades.

Dans les dispositifs connus, les lames déplaçables sont fixées sur une couronne dentée intérieure permettant un réglage simultané de toutes les lames déplaçables montées sur plusieurs appareils placés côte à côte, cela au moyen d'un arbre comportant un pignon par appareil circulaire de façon à ce que les couronnes dentées intérieures de chaque appareil circulaire soient simultanément déplacées en rotation.In known devices, the movable blades are fixed on an inner ring gear allowing simultaneous adjustment of all the movable blades mounted on several devices placed side by side, this by means of a shaft comprising a pinion per circular device so that that the internal toothed rings of each circular device are simultaneously rotated.

Il est évident que ces lames subissent une usure appréciable au cours du travail du matériau. Elles peuvent également être détériorées par exemple par une fausse manoeuvre ou un "bourrage" intempestif. Il est aussi possible que l'on soit gêné par une lame empêchant la réalisation d'une certaine dimension de fente. Il est donc nécessaire dans les cas mentionnés ci-dessus de procéder au démontage de l'une ou l'autre des lames portées par l'appareil circulaire. Ce démontage doit bien entendu s'effectuer rapidement et facilement afin d'immobiliser la machine durant un temps le plus court possible de manière à ne pas réduire la capacité de production de la machine.It is obvious that these blades undergo appreciable wear during the working of the material. They can also be damaged, for example by a false maneuver or an untimely "jam". It is also possible that one is hampered by a blade preventing the achievement of a certain dimension of slot. It is therefore necessary in the cases mentioned above to disassemble one or the other of the blades carried by the circular device. This disassembly must of course be carried out quickly and easily in order to to immobilize the machine for the shortest possible time so as not to reduce the production capacity of the machine.

Les dispositifs de fixation des outils (lames) connus à ce jour utilisent, pour le maintien des lames, des éléments de retenue sur lesquels les lames sont fixées à l'aide de vis ou d'accouplements coûteux, complexes et peu fiables tels que celui décrit dans le brevet US N°3985066.The fastening devices for tools (blades) known to date use, for holding the blades, retaining elements to which the blades are fixed using expensive or complex, unreliable screws or couplings such as that described in US Patent No. 3,985,066.

Le but de la présente invention est donc de prévoir une solution autorisant le montage et le démontage rapide des lames d'un appareil circulaire au moyen d'une construction simple, efficace et économique. Un tel dispositif permet tout particulièrement le démontage et le montage rapide et aisé d'un nombre quelconque de lames portées par un appareil circulaire.The object of the present invention is therefore to provide a solution allowing the rapid assembly and disassembly of the blades of a circular device by means of a simple, efficient and economical construction. Such a device allows in particular the disassembly and rapid and easy assembly of any number of blades carried by a circular device.

Pour résoudre le problème posé, l'invention se référe à un dispositif de fixation d'outils sur au moins un appareil circulaire, notamment sur un appareil circulaire déplaçable latéralement le long d'un arbre rotatif supportant au moins un appareil circulaire, ledit dispositif de fixation comportant des moyens pour supporter lesdits outils, des moyens de maintien des outils contre lesdits moyens pour les supporter et des moyens pour déplacer lesdits moyens de maintien des outils, caractérisé en ce que les moyens pour supporter les outils sont constitués par une couronne circulaire dont l'une des faces est munie de logements circulaires répartis circonférentiellement sur un rayon constant ayant son centre à l'axe de l'arbre rotatif et par une couronne dentée intérieure logée, de façon à pouvoir tourner, dans ladite couronne circulaire, la couronne dentée intérieure étant elle aussi munie sur l'une de ses faces de logements circulaires ou alésages répartis circonférentiellement sur un rayon constant ayant lui aussi son centre à l'axe de l'arbre rotatif, en ce que les moyens de maintien des outils sont constitués par une bride circulaire dont l'une des faces comporte deux rainures concentriques, ladite face de la bride circulaire étant munie d'au moins une tige s'étendant perpendiculairement à cette face et traversant de part en part la couronne circulaire des moyens pour supporter les outils, ladite tige étant agencée de façon à présenter une portée cylindrique s'engageant dans un chambrage aménagé dans ladite couronne circulaire, ladite portée cylindrique constituant d'une part un épaulement contre lequel s'appuie un ressort de rappel logé dans ledit chambrage de la couronne circulaire et d'autre part une protubérance s'étendant perpendiculairement à la place de ladite couronne circulaire, en ce que les moyens pour déplacer les moyens de maintien des outils sont constitués par un organe déplaçable latéralement le long de l'arbre rotatif supportant les appareils circulaires et en ce que ledit organe déplaçable latéralement agit avec l'une des ses faces contre l'extrémité de la portée cylindrique de ladite tige.To solve the problem posed, the invention refers to a device for fixing tools on at least one circular device, in particular on a circular device which can be moved laterally along a rotary shaft supporting at least one circular device, said device for fastening comprising means for supporting said tools, means for holding tools against said means for supporting them and means for moving said means for holding tools, characterized in that the means for supporting the tools consist of a circular crown of which one of the faces is provided with circular housings distributed circumferentially over a constant radius having its center at the axis of the rotary shaft and by an internal toothed crown housed, so as to be able to rotate, in said circular crown, the toothed crown interior also being fitted on one of its faces of circular housings or bores distributed circumferentially over a constant radius also having its center at the axis of the rotary shaft, in that the means for holding the tools consist of a circular flange, one of the faces of which comprises two concentric grooves, said face of the circular flange being provided with at least one rod extending perpendicular to this face and passing right through the circular crown of the means for supporting the tools, said rod being arranged so as to present a cylindrical bearing engaging in a recess arranged in said circular crown, said cylindrical bearing constituting on the one hand a shoulder against which rests a return spring housed in said recess of the circular crown and on the other hand a protuberance s' extending perpendicularly to the place of said circular ring, in that the means for moving the tools holding means consist of an o rgan movable laterally along the rotary shaft supporting the circular devices and in that said laterally movable member acts with one of its faces against the end of the cylindrical seat of said rod.

Le dispositif selon l'invention a l'avantage de maintenir les outils en position tout en autorisant un déplacement axial des moyens de retenue des outils pour provoquer l'ouverture simultanée de chaque appareil consécutif se trouvant sur l'arbre rotatif, permettant par là l'accessibilité aux outils de façon à pouvoir les démonter et les remonter aisément et rapidement.The device according to the invention has the advantage of holding the tools in position while allowing axial movement of the tool retaining means to cause the simultaneous opening of each consecutive device located on the rotary shaft, thereby allowing the accessibility to the tools so that they can be dismantled and reassembled easily and quickly.

Une forme d'execution particulière de l'invention sera décrite plus en détail ci-après à l'aide des dessins annexés dans lesquels:

  • la figure 1 est une vue en coupe axiale partielle au travers d'un arbre rotatif équipé de plusieurs appareils circulaires représentés dans leur position de travail,
  • la figure 2 est une vue en coupe axiale partielle au travers d'un arbre rotatif équipé de plusieurs appareils circulaires représentés dans leur position ouverte et
  • la figure 3 est une vue de face schématique, partiellement coupée, d'un appareil circulaire.
A particular embodiment of the invention will be described in more detail below with the aid of the appended drawings in which:
  • FIG. 1 is a view in partial axial section through a rotary shaft fitted with several circular devices shown in their working position,
  • FIG. 2 is a view in partial axial section through a rotary shaft fitted with several circular devices shown in their open position and
  • Figure 3 is a schematic front view, partially cut, of a circular device.

Ainsi que représentés par la figure 1, des appareils circulaires A, B et C sont placés côte à côte le long d'un arbre rotatif 1. Leur position latérale dépend des endroits auxquels des opérations, par exemple de découpage ou de refoulage, devront être effectuées sur une plaque de matière à travailler (non représentée). Les appareils circulaires A, B et C sont munis, à leurs circonférences, d'outils, dans le cas particulier des lames de découpage 2 pouvant être réglées angulairement l'une par rapport à l'autre (voir figure 3). Il va de soi que le nombre d'appareils circulaires 3 montés sur l'arbre rotatif 1 peut varier selon les besoins et que le nombre de lames de découpage 2 placées à la circonférence des appareils circulaires A, B et C peut lui aussi varier.As shown in FIG. 1, circular devices A, B and C are placed side by side along a rotary shaft 1. Their lateral position depends on the places where operations, for example cutting or pressing, will have to be performed on a plate of material to be worked (not shown). The circular devices A, B and C are provided, at their circumferences, with tools, in the particular case of the cutting blades 2 which can be adjusted angularly with respect to one another (see FIG. 3). It goes without saying that the number of circular devices 3 mounted on the rotary shaft 1 can vary as required and that the number of cutting blades 2 placed at the circumference of the circular devices A, B and C can also vary.

Chaque appareil circulaire A, B ou C se compose en général d'une couronne circulaire 4 clavetée sur l'arbre rotatif 1 et d'une bride circulaire 5 entre lesquelles sont disposées les lames de découpage 2. La couronne circulaire 4 est équipée d'une couronne dentée intérieure 6 engrenant avec un pignon 7 monté sur un arbre 8 traversant tous les appareils circulaires et tournant avec eux (voir figure 3). La face 9 de la couronne circulaire 4 présente, à intervalles réguliers et sur un rayon constant R ayant son origine à l'axe de l'arbre rotatif 1, des alésages 10. La couronne dentée intérieure 6 est aussi agencée de façon à présenter sur sa face 11 des alésages 12 de même diamètre que les alésages 10. Ces alésages 12 sont également répartis à intervalles réguliers sur un rayon constant R1 (voir figure 3) ayant, lui aussi, son origine à l'axe de l'arbre rotatif 1. La couronne circulaire 4 comporte aussi plusieurs alésages traversants 13 présentant un chambrage cylindrique 14. Une tige 15 munie d'une portée 16 s'engage dans chacun des alésages traversants 13. L'extrémité de la tige 15 opposée à la portée cylindrique 16 est vissée dans un taraudage 17 aménagé dans la bride circulaire 5 alors que la portée 16 s'engage dans le chambrage 14 usiné dans la couronne circulaire 4. Un ressort de rappel 18 est placé dans chaque chambrage 14 et son appui entre le fond du chambrage 14 et l'épaulement provoqué par la portée 16 a pour effet de pincer la lame de découpage 2 entre la face 9 de la couronne circulaire 4 et la face 19 de la bague circulaire 5. Cette bague circulaire 5 est munie de deux rainures concentriques 20 et 21. Dans l'exécution représentée, la lame de découpage 2 comporte sur chacune de ses faces un téton 22, respectivement 23. Ainsi, il est possible, par simple retournement de la lame de découpage 2, d'obtenir soit une version "lame fixe" soit une version "lame mobile ou déplaçable angulairement". En effet, lorsque le téton 22 est engagé dans l'alésage 10, on se trouve en présence de la version "lame-fixe". Le téton 23 s'engage avec jeu dans la rainure concentrique 21 ce qui permet le serrage de la lame sous l'effet du ou des ressorts de rappel 18. Si l'on retourne la lame de découpage 2 sur elle-même, nous allons avoir le téton 23 qui va s'engager dans les alésages 12 de la couronne dentée intérieure 6 alors que le téton 22 va lui s'engager avec jeu dans la rainure concentrique 20, ce qui va nous mettre en présence de la version "lame mobile ou déplaçable angulairement" en raison du fait que la couronne dentée intérieure 6 peut être entraînée en rotation par son pignon 7. Ainsi, il sera possible de modifier la distance séparant deux lames de découpage montées sur le même appareil.Each circular device A, B or C generally consists of a circular crown 4 keyed to the rotary shaft 1 and a circular flange 5 between which the cutting blades are disposed 2. The circular crown 4 is equipped with an inner ring gear 6 meshing with a pinion 7 mounted on a shaft 8 passing through all the circular devices and rotating with them (see Figure 3). The face 9 of the circular crown 4 has, at regular intervals and on a constant radius R having its origin at the axis of the rotary shaft 1, bores 10. The toothed crown inner 6 is also arranged so as to have on its face 11 bores 12 of the same diameter as the bores 10. These bores 12 are also distributed at regular intervals over a constant radius R1 (see FIG. 3) also having its origin to the axis of the rotary shaft 1. The circular crown 4 also includes several through bores 13 having a cylindrical recess 14. A rod 15 provided with a bearing 16 engages in each of the through bores 13. The end of the rod 15 opposite the cylindrical bearing 16 is screwed into a thread 17 arranged in the circular flange 5 while the bearing 16 engages in the recess 14 machined in the circular crown 4. A return spring 18 is placed in each recess 14 and its support between the bottom of the recess 14 and the shoulder caused by the bearing 16 has the effect of pinching the cutting blade 2 between the face 9 of the circular crown 4 and the face 19 of the circular ring 5. This ring circular 5 is provided with two concentric grooves 20 and 21. In the embodiment shown, the cutting blade 2 has on each of its faces a stud 22, respectively 23. Thus, it is possible, by simply reversing the cutting blade 2, to obtain either a "fixed blade" version or a "movable or angularly movable blade" version. Indeed, when the pin 22 is engaged in the bore 10, we are in the presence of the "blade-fixed" version. The stud 23 engages with play in the concentric groove 21 which allows the clamping of the blade under the effect of the return spring or springs 18. If we turn the cutting blade 2 on itself, we will have the stud 23 which will engage in the bores 12 of the internal toothed crown 6 while the stud 22 will engage it with play in the groove concentric 20, which will put us in the presence of the version "movable or angularly movable blade" due to the fact that the inner ring gear 6 can be driven in rotation by its pinion 7. Thus, it will be possible to modify the distance separating two cutting blades mounted on the same device.

Cette disposition présente l'avantage de pouvoir utiliser indifféremment une lame fixe pour une lame mobile et vice-versa.This arrangement has the advantage of being able to use either a fixed blade for a movable blade and vice versa.

La figure 2 représente les appareils circulaires 3 dans leur position ouverte, c'est à dire dans la position permettant l'échange des différentes lames de découpage 2. Les appareils circulaires 3 sont déplaçables latéralement le long de l'arbre rotatif 1. Ce déplacement s'effectue à l'aide d'une fourchette 24 s'engageant dans une rainure 25 aménagée dans la couronne circulaire 4. On peut, de ce fait, remarquer que, si l'on déplace, vers la gauche de la figure, l'appareil circulaire B tout en maintenant l'appareil circulaire A dans une position donnée, il se produira un déplacement de la bague circulaire 5 de l'appareil circulaire A. Ce déplacement créera une ouverture 26 et l'on pourra alors aisément retirer la lame de découpage 2 de l'appareil circulaire A, et au besoin la remplacer.FIG. 2 represents the circular devices 3 in their open position, that is to say in the position allowing the exchange of the different cutting blades 2. The circular devices 3 can be moved laterally along the rotary shaft 1. This movement is carried out using a fork 24 engaging in a groove 25 arranged in the circular crown 4. It can therefore be noted that, if one moves, to the left of the figure, the circular apparatus B while maintaining the circular apparatus A in a given position, there will be a displacement of the circular ring 5 of the circular apparatus A. This displacement will create an opening 26 and the blade can then be easily removed 2 of the circular device A, and if necessary replace it.

Dans certains cas, par exemple lors d'un changement de travail, il sera nécessaire de remplacer toutes les lames de découpage 2 montées sur les appareils circulaires A, B et C. Généralement lors d'un réglage complet de la position latérale des appareils circulaires, ceux-ci sont amenés en butée à l'une des extrémités de l'arbre rotatif 1 puis, un calculateur électronique (non représenté) donnera les valeurs de déplacement de chaque appareil circulaire aux organes decommande des fourches 24. On profite de ce que les appareils circulaires sont tous accolés l'un à l'autre pour leur transmettre une avance latérale supplémentaire qui a pour effet de provoquer l'ouverture de tous les appareils circulaires, cela par l'action de la face des bagues circulaires 5 contre la tête de la tige 15. Cette façon de faire n'est malheureusement pas parfaite car elle ne permet pas d'ouvrir l'appareil circulaire placé en dernier sur l'arbre rotatif 1 puisque celui-ci agit en tant que poussoir et qu'aucune action n'est exercée sur ses tiges 15. Afin que l'ouverture de tous les appareils soit assurée, on prévoit de monter, avant le dernier appareil circulaire (C dans la figure 2) une bague de pression 27 que l'on commandera de façon à ce que, lorsque tous les appareils circulaires ont été placés dans leur position initiale de réglage, elle provoque un déplacement des tiges 15 de l'appareil circulaire C. Ce déplacement entraînant bien normalement le déplacement de la bague circulaire 5 qui à son tour va provoquer le déplacement des tiges 15 de l'appareil B ce qui aura pour effet de déplacer également sa bague circulaire 5 qui à son tour agira sur les tiges 15 de l'appareil A provoquant ainsi son ouverture. Tous les appareils A, B et C étant de ce fait ouverts, il sera facile de démonter les anciennes lames de découpage et de les remplacer par des nouvelles. En règle générale, les tétons 22 et 23 suffisent à maintenir les lames de découpage 2 contre la couronne circulaire 4 mais on pourrait imaginer d'assurer ce maintien en les équipant par exemple de pastilles magnétiques 28 (voir figure 3).In certain cases, for example during a change of work, it will be necessary to replace all the cutting blades 2 mounted on circular devices A, B and C. Generally during a complete adjustment of the lateral position of circular devices , these are brought into abutment at one end of the rotary shaft 1 then, an electronic computer (not shown) will give the displacement values of each circular device to the control members of the forks 24. We take advantage of the fact that the circular devices are all joined to one another to transmit to them an additional lateral advance which has the effect of causing the opening of all circular devices, this by the action of the face of the circular rings 5 against the head of the rod 15. This method is unfortunately not perfect because it does not open the circular device placed last on the rotary shaft 1 since it acts as a pusher and no action n 'is exerted on its rods 15. So that the opening of all the devices is ensured, provision is made to mount, before the last circular device (C in FIG. 2) a pressure ring 27 which will be controlled so as to what, when all the circular devices have been placed in their initial adjustment position, it causes a displacement of the rods 15 of the circular apparatus C. This displacement normally causes the displacement of the circular ring 5 which in turn will cause the depl acement of the rods 15 of the apparatus B which will also have the effect of moving its circular ring 5 which in turn will act on the rods 15 of the apparatus A thus causing it to open. All devices A, B and C are therefore open, it will be easy to dismantle the old cutting blades and replace them with new ones. In general, the pins 22 and 23 are sufficient to maintain the cutting blades 2 against the circular crown 4 but one could imagine ensuring this maintenance by equipping them, for example with magnetic pads 28 (see Figure 3).

Il est évident que, pour certains outils spéciaux tels que celui représenté en A sur les figures 1 et 2, il convient d'ajuster la longueur des tiges 15 de façon à ce que l'ouverture 26 provoquée soit suffisante pour autoriser le changement de ces outils. On peut aussi imaginer d'employer des outils spécifiques pour les versions "lame fixe" ou "lame mobile ou déplaçable". Cela implique alors que les lames doivent comporter soit deux tétons, placés du même côté et sur le rayon R pour les lames fixes soit deux tétons, placés du même côté sur le rayon R1 pour les lames mobiles ou déplaçables.It is obvious that, for certain special tools such as that shown at A in FIGS. 1 and 2, it is necessary to adjust the length of the rods 15 so that the opening 26 caused is sufficient to allow the change of these tools. Can also imagine using specific tools for the "fixed blade" or "movable or displaceable blade" versions. This then implies that the blades must have either two nipples, placed on the same side and on the radius R for the fixed blades or two nipples, placed on the same side on the radius R1 for the mobile or displaceable blades.

Ainsi que cela ressort de la description ci-avant, l'utilisateur de l'invention dispose d'un dispositif autorisant un montage et un démontage rapide des lames de découpage ou des outils portés par un ou plusieurs appareils circulaires lui permettant d'effectuer dans un temps très limité les opérations tout en assurant de ce fait un rendement et une cadence de production améliorée de la machine ainsi équipée.As is apparent from the above description, the user of the invention has a device allowing rapid assembly and disassembly of the cutting blades or tools carried by one or more circular devices enabling him to perform in a very limited time the operations while thus ensuring a yield and an improved production rate of the machine thus equipped.

Claims (5)

1. Dispositif de fixation d'outils sur au moins un appareil circulaire, notamment sur un appareil circulaire (A, B respectivement C) déplaçable latéralement le long d'un arbre rotatif (1) supportant au moins l'un de ces appareils circulaires (A, B respectivement C), ledit dispositif de fixation comportant des moyens pour supporter lesdits outils, des moyens de maintien des outils contre lesdits moyens pour les supporter et des moyens pour déplacer lesdits moyens de maintien des outils, caractérisé en ce que les moyens pour supporter les outils sont constitués par une couronne circulaire (4) dont l'une des faces (9) est munie de logements circulaires (10) répartis circonférentiellement sur un rayon constant (R) ayant son centre à l'axe de l'arbre rotatif (1) et par une couronne dentée (6) logée de façon à pouvoir tourner dans ladite couronne circulaire (4), la couronne dentée intérieure (6) étant elle aussi munie, sur l'une de ses faces (11), de logements circulaires ou alésages (12) répartis circonférentiellement sur un rayon constant (R1) ayant lui aussi son centre à l'axe de l'arbre rotatif (1), en ce que les moyens de maintien des outils sont constitués par une bride circulaire (5) dont l'une des faces (19) comporte deux rainures concentriques (20 et 21), ladite face (19) de la bride circulaire (5) étant munie d'au moins une tige (15) s'étendant perpendiculairement à cette face (19) et traversant de part en part la couronne circulaire (4) des moyens pour supporter les outils, ladite tige (15) étant agencée de façon à présenter une portée cylindrique (16) s'engageant dans un chambrage (14) aménagé dans ladite couronne circulaire (4), ladite portée cylindrique (16) constituant d'une part un épaulement contre lequel s'appuie un ressort de rappel (18) logé dans ledit chambrage (14) de la couronne circulaire (4) et d'autre part une protubérance s'étendant perpendiculairement à la face de ladite couronne circulaire (4), en ce que les moyens pour déplacer les moyens de maintien des outils sont constitués par un organe déplaçable latéralement le long de l'arbre rotatif (1) supportant les appareils circulaires (A, B et C) et en ce que ledit organe déplaçable latéralement agit avec l'une de ses faces contre l'extrémité de la portée cylindrique (16) de ladite tige (15).1. Device for fixing tools on at least one circular device, in particular on a circular device (A, B respectively C) movable laterally along a rotary shaft (1) supporting at least one of these circular devices ( A, B respectively C), said fixing device comprising means for supporting said tools, means for holding tools against said means for supporting them and means for moving said means for holding tools, characterized in that the means for support the tools consist of a circular ring (4) one of the faces (9) of which is provided with circular housings (10) distributed circumferentially over a constant radius (R) having its center at the axis of the rotary shaft (1) and by a toothed crown (6) housed so as to be able to rotate in said circular crown (4), the internal toothed crown (6) also being provided, on one of its faces (11), with housings circular or bores (12) re gone circumferentially on a constant radius (R1) also having its center at the axis of the rotary shaft (1), in that the means for holding the tools consist of a circular flange (5) one of the faces (19) comprises two concentric grooves (20 and 21), said face (19) of the circular flange (5) being provided with at least one rod (15) extending perpendicular to this face (19) and passing through right through the circular crown (4) of the means for supporting the tools, said rod (15) being arranged so as to have a cylindrical bearing surface (16) engaging in a recess (14) arranged in said crown circular (4), said cylindrical bearing surface (16) constituting on the one hand a shoulder against which a return spring (18) is supported housed in said recess (14) of the circular crown (4) and on the other hand a protrusion extending perpendicularly to the face of said circular ring (4), in that the means for moving the tools holding means consist of a member movable laterally along the rotary shaft (1) supporting the circular devices (A, B and C) and in that said laterally displaceable member acts with one of its faces against the end of the cylindrical seat (16) of said rod (15). 2. Dispositif selon la revendication 1 caractérisé en ce que les outils sont constitués par des lames (2) en forme de secteurs de couronne circulaire et qu'au moins une de leur face est équipée de tétons (22, 23) destinés à s'engager soit dans les logements circulaires (10) de la couronne circulaire (4) soit dans les alésages (12) de la couronne dentée intérieure (6).2. Device according to claim 1 characterized in that the tools consist of blades (2) in the form of circular crown sectors and that at least one of their faces is equipped with pins (22, 23) intended for s' either engage in the circular housings (10) of the circular crown (4) or in the bores (12) of the internal toothed crown (6). 3. Dispositif selon la revendication 2 caractérisé en ce que les lames (2) sont équipées sur chacune de leurs faces de tétons (22, 23).3. Device according to claim 2 characterized in that the blades (2) are equipped on each of their faces with pins (22, 23). 4. Dispositif selon la revendication 1 caractérisé en ce que l'organe déplaçable latéralement le long de l'arbre rotatif (1) est constitué par une bague de pression (27).4. Device according to claim 1 characterized in that the member movable laterally along the rotary shaft (1) consists of a pressure ring (27). 5. Dispositif selon la revendication 1 caractérisé en ce que l'organe déplaçable latéralement le long de l'arbre rotatif (1) est constitué par l'un ou l'autre des appareils circulaires (A, B et C).5. Device according to claim 1 characterized in that the member movable laterally along the rotary shaft (1) consists of one or the other of the circular devices (A, B and C).
EP89104783A 1988-03-22 1989-03-17 Fastening mechanism for rotating tools Expired - Lifetime EP0334226B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89104783T ATE75178T1 (en) 1988-03-22 1989-03-17 FIXING DEVICE FOR A ROTATING TOOL.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8804052A FR2629005B1 (en) 1988-03-22 1988-03-22 DEVICE FOR FIXING TOOLS ON A CIRCULAR APPARATUS, PARTICULARLY FOR CUTTING CARDBOARD
FR8804052 1988-03-22

Publications (2)

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EP0334226A1 true EP0334226A1 (en) 1989-09-27
EP0334226B1 EP0334226B1 (en) 1992-04-22

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EP89104783A Expired - Lifetime EP0334226B1 (en) 1988-03-22 1989-03-17 Fastening mechanism for rotating tools

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US (1) US4970924A (en)
EP (1) EP0334226B1 (en)
JP (1) JPH0271995A (en)
AT (1) ATE75178T1 (en)
CA (1) CA1310817C (en)
DE (1) DE68901288D1 (en)
ES (1) ES2030547T3 (en)
FR (1) FR2629005B1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5826481A (en) * 1991-06-26 1998-10-27 Sintonen; Kari Device for cutting plywood veneer
US5123891A (en) * 1991-07-18 1992-06-23 Westvaco Corporation Box machine die knife stabilizer
CN104228130A (en) * 2014-09-18 2014-12-24 德清中盈文具用品有限公司 Cutting device for opening mouth in paper box

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US3466982A (en) * 1965-11-24 1969-09-16 Simon Ltd Henry Slotting mechanisms
US3985066A (en) * 1975-05-15 1976-10-12 S&S Corrugated Paper Machinery Co., Inc. Single point means for slotter adjustment

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US3952637A (en) * 1975-04-14 1976-04-27 Koppers Company, Inc. Apparatus for changing the rotary position of a slotter member and for changing the relative position between fixed and movable knives on the slotter member
US4502357A (en) * 1983-07-07 1985-03-05 Hussissian Vahan A Slotting head
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US1547602A (en) * 1924-07-05 1925-07-28 F X Hooper Company Box-flap-cutting mechanism
US3466982A (en) * 1965-11-24 1969-09-16 Simon Ltd Henry Slotting mechanisms
US3985066A (en) * 1975-05-15 1976-10-12 S&S Corrugated Paper Machinery Co., Inc. Single point means for slotter adjustment

Also Published As

Publication number Publication date
FR2629005A1 (en) 1989-09-29
JPH0271995A (en) 1990-03-12
ATE75178T1 (en) 1992-05-15
US4970924A (en) 1990-11-20
ES2030547T3 (en) 1992-11-01
DE68901288D1 (en) 1992-05-27
CA1310817C (en) 1992-12-01
EP0334226B1 (en) 1992-04-22
FR2629005B1 (en) 1990-12-07

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