EP0168334B1 - Apparatus for cutting carton tubes and the like - Google Patents

Apparatus for cutting carton tubes and the like Download PDF

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Publication number
EP0168334B1
EP0168334B1 EP85440038A EP85440038A EP0168334B1 EP 0168334 B1 EP0168334 B1 EP 0168334B1 EP 85440038 A EP85440038 A EP 85440038A EP 85440038 A EP85440038 A EP 85440038A EP 0168334 B1 EP0168334 B1 EP 0168334B1
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EP
European Patent Office
Prior art keywords
cutting
fitted
rotation
counter
rollers
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.)
Expired
Application number
EP85440038A
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German (de)
French (fr)
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EP0168334A1 (en
Inventor
Georges Sireix
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Individual
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Individual
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Priority to AT85440038T priority Critical patent/ATE34691T1/en
Publication of EP0168334A1 publication Critical patent/EP0168334A1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D3/00—Cutting work characterised by the nature of the cut made; Apparatus therefor
    • B26D3/16—Cutting rods or tubes transversely
    • 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
    • Y10T82/00—Turning
    • Y10T82/16—Severing or cut-off
    • Y10T82/16065—Combined with means to apply fluid
    • 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
    • Y10T82/00—Turning
    • Y10T82/16—Severing or cut-off
    • Y10T82/16131—Flying cutter 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
    • Y10T82/00—Turning
    • Y10T82/16—Severing or cut-off
    • Y10T82/16426—Infeed means
    • Y10T82/16951—Tool adjustment and/or stop
    • 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
    • Y10T82/00—Turning
    • Y10T82/16—Severing or cut-off
    • Y10T82/16426—Infeed means
    • Y10T82/16967—Infeed means with means to support and/or rotate work

Definitions

  • the invention relates to an automatic cutting device for circular tubes of small, medium and large thickness obtained by gluing several strips of fibrous, cellulosic, metallic, plastic materials and, in general, any material in strips and produced at using a spiraling machine, a profiling machine or an extruder comprising at least one cutting assembly.
  • Document FR-A 2370581 already discloses a device for cutting tubular elements of cardboard and similar materials, installed on a machine allowing the production of tubular packaging made up of strips glued to one another in a pitch of determined screw, these strips being of fibrous, cellulosic, metallic, plastic and other materials.
  • This cutting device allowing a cut on the fly, comprises a carriage sliding along a rail held by supports. On this carriage is mounted an electric motor, the shaft of which is provided with a saw blade provided with teeth. This cooperates with a cutting counter-roller secured to the carriage. The latter is integral with a translation device ensuring the advance of the carriage. A certain space is provided between the saw blade and the counter roller to allow the passage of the tubular element. During cutting, the saw blade is brought forward, subjected to continuous rotation by the electric motor, in the direction of the counter-roller.
  • machines making it possible to make packaging as defined above.
  • These machines include two drums movable in rotation and connected to each other by a belt describing a helical movement causing, on the one hand, a helical winding of the different strips of paper, metal and others previously provided with a layer of glue and, d on the other hand, the continuous advance of the tubular element on a spindle.
  • a shaft requesting a multiple cutting device subjected to a displacement in the axis of advance of the tubular element whose variable speeds of advance and cuts are synchronized with the speed of advance of the tubular element.
  • This device comprises a number of saw blades corresponding to the number of cuts that one wants to make.
  • These cutting elements are subjected to a triple displacement in space, namely a rotation about its axis, a pendulum movement to cut the tubular element and a longitudinal displacement according to the advance of the tubular element.
  • Cutting devices are also known comprising knives and fixed modules, the drive of which is carried out from the inside of the tube by means of an extendable clamp.
  • the present invention aims to remedy these drawbacks.
  • the invention as characterized in the claims, solves the problem of creating an automatic device for cutting circular tubes of small, medium and large thickness, obtained by bonding several strips of fibrous, cellulosic, metallic materials , plastics and, in general, any material in strips and produced using a spiraling machine, a profiling machine or an extruder, comprising at least one cutting assembly formed by a pair of pivoting levers around an axis located at one of their ends and maintained by bearings integral with the frame while the other end of the same bearings is connected by an axis to a piston of a jack causing, by tilting, the advance a cutting knife with a double bevel in the direction of a fixed mandrel on which the circular tube coming from the spiraling machine, profiling machine or extruder freely rotates, this cutting knife being provided with a ratchet wheel integral in rotation of this last, sharp knife and ratchet wheel being mounted on an axis located between axes, a
  • each cutting assembly comprises means ensuring a blocking of the cutting knife during cutting but giving said cutting knife a fragmented rotation taking place between two consecutive cuts.
  • Fig. 5 shows in plan view the cutting device allowing a plurality of cuts. We refer to figure 1.
  • the cutting device 1 comprises a mandrel 2 made of a material resistant to wear but whose coefficient of friction is low. According to the invention, this mandrel 2 is fixed from the rotation point of view. On the outer periphery 3 of this mandrel 2 freely rotates a circular tube 4 coming from a spiraling machine, a profiling machine or an extruder. This circular tube 4 is obtained by gluing several strips of fibrous, cellulosic, metallic, plastic materials, and, in general, any strip material. Because the mandrel 2 has a very low coefficient of friction, the circular tube 4 easily rotates on said mandrel 2.
  • These two counter-rollers 8, 9 comprising a metal core provided with an adherent coating, are subjected to a rotational movement whose speed is synchronized with the rotational speed of the circular tube 4.
  • the two counter-rollers 8, 9 are integral in rotation with a shaft 10, 11 disposed at one end 12, 13 of two pairs of levers 14, 15.
  • the latter is driven by a motor element 20, 21.
  • These two motor elements 20, 21 are integral in rotation with an intermediate shaft 22 disposed at the other end 23, 24 of the pairs of levers 14 , 15.
  • This intermediate shaft 22 also serves as an axis of rotation 25 for the pairs of levers 14, 15.
  • a driven element 26 of a central transmission 27 including the driving element 28 is integral in rotation with the shaft 29 of a gearmotor-variator30.
  • each lever cylinder 31, 32 To apply the two counter rollers 8, 9 against the outer periphery 5 of the circular tube 4 or vice versa to break the contact between the two counter rollers 8, 9 and the outer periphery 5 of the circular tube 4, there is provided for each lever cylinder 31, 32.
  • the pistons 33, 34 of these cylinders 31, 32 are connected by a hinge pin 35, 36 to a yoke 37, 38 secured to each of the levers 14, 15 while the end 39, 40 of cylinders 31, 32 is connected by a hinge pin 41,42 to the frame (not shown) of the cutting device.
  • a cutting assembly which consists essentially of a knife machined in a very sharp double bevel 43.
  • This knife 43 can pivot around an axis 44 held by a pair of levers 45.
  • These levers 45 can autor pivot an axis 46 located at one end 47 of the levers 45, this axis 46 being held by bearings 48 integral with the frame.
  • the other end 49 of the levers 45 is connected by an axis 50 to the piston 51 of a cylinder 52.
  • This cylinder 51 connected by an axis 53 to the frame, causes the levers 45 to tilt around the axis 46.
  • the speed of the stroke of the piston 51 of the jack 52 is adjustable as a function of the speed of rotation of the circular tube 2.
  • the cutting knife 43 comprises a ratchet wheel 54 integral in rotation with said cutting knife 43.
  • the teeth 55 of this ratchet wheel 54 cooperate with a pawl 56 secured to a piston 57 of a jack 58 rendered by a n hinge pin 59 to the piston 51 of the cylinder 52.
  • the pawl 56 blocks in rotation the ratchet wheel 54 and, consequently, blocks in rotation the cutting knife 43.
  • the jack 58 is actuated.
  • the pawl 56 causes a partial rotation of the cutting knife 43.
  • lubrication means 60 are also provided, consisting of a lubrication nozzle 61 disposed at the end of a lubrication circuit 62.
  • FIGS. 2 and 3 showing another embodiment of the cutting device 1 subjected to a movement in the direction of advance of the circular tube 4.
  • a table 63 sliding on slides 64 is provided, 65, the ends 66, 67, 68, 69 of which are held by supports 70, 71, 72, 73 secured to the frame.
  • the movement of the table 63 is ensured by a gearmotor-variator 74, the shaft 75 of which is provided with a screw 76 on which moves a nut 77 mounted on the end 78 of a support 79 integral with the table 63.
  • Relative to the median plane 80 of the latter means are also provided making it possible to move the cutting assembly relative to the table 63.
  • These means are one or two adjustable beams 81, 82 on which a knife holder 83 slides.
  • a knife holder 83 On this knife holder 83 are arranged the levers 45, the jack 52 causing the cutting knife 43 to advance with its ratchet wheel 54 towards the mandrel 2, the jack 58 with its pawl 56 and the lubrication means 60.
  • a forming mandrel 84 is also provided, which is also integral with the frame. Through this forming mandrel 84 passes a mechanical connection 85 to keep the mandrel 2 stationary.
  • the shaft 29 of the gearmotor-variator 30 is coupled to a secondary shaft 86.
  • This secondary shaft 86 rotates the motor element 28 of the central transmission 27 while allowing said motor element 28 to slide on the secondary shaft 86.
  • the counter-rollers 8 are given a certain length so that the latter ensure constant drive on either side of the cutting line 87 as well of the circular tube 4 as of the section 4 1 and this, until the cut is completely carried out.
  • the jacks 31, 32 have been replaced by a single jack 88 actuating pistons 89, 90 in the opposite direction, which makes it possible to give the levers 14 1 , 14 2 , 15 1 , 15 2 movements synchronized for bringing the counter rollers 8, 9 closer or further away from the circular tube 4.
  • the cutting device according to the invention can be mounted on machines intended to cut or cut circular tubes 4 either individually or with multiple cuts.
  • a movable carriage 91 composed of two supports 92, 93 arranged perpendicular to the fixed mandrel 2.
  • the ends 94, 95, 96, 97 of these supports 92, 93 are provided with bearings 98, 99, 100, 101 sliding on slides 102, 103 held by supports 104, 105, 106, 107 integral with the frame.
  • the adjustable beam 81 comprising a plurality of knife holders 83 each provided with levers 45, with the jack 52 causing the cutting knife 43 provided with its ratchet wheel 53 to move towards the mandrel 2 , of the jack 58 with its pawl 56 and the lubrication means 60.
  • the movement of the mobile carriage 91 is ensured by the gearmotor-variator 74, the shaft 75 of which is provided with the screw 76 on which the nut 77 moves, secured to one of the ends 114, 115 of two axes 116, 117 of which the other end 118, 119 is integral with the mobile carriage 91.

Abstract

The invention concerns a device for the automatic cutting of circular tubes of small, medium and large thickness, obtained by gluing together several strips of fibrous, cellulose, metallic, or plastic materials, and generally speaking any materials in strips, and made by using a spiralizer, a profiler or an extruder. This device for automatic cutting is characterized by the fact that it comprises a fixed mandrel (2) on which the circular tube (4) coming from the spiralizer, profiler or extruder turns freely and is driven without constraint either side of the cutting line by counter-rollers (8, 9) subject to a rotary movement synchronized with the speed of rotation of the circular tube (4), this fixed mandrel (2) cooperating for the cut with at least one cutting group provided with a knife milled with two bevelled edges which are very sharp (43) which is immobile in rotation at the moment of cutting. The invention concerns disposable packs.

Description

L'invention concerne un dispositif de coupe automatique de tubes circulaires de faible, moyenne et forte épaisseur obtenus par l'encollage de plusieurs bandes en matériaux fibreux, cellulosiques, métalliques, plastiques et d'une manière générale, tout matériau en bandes et réalisé à l'aide d'une spiraleuse, d'une profileuse ou d'une extrudeuse comprenant au-moins un ensemble de coupe.The invention relates to an automatic cutting device for circular tubes of small, medium and large thickness obtained by gluing several strips of fibrous, cellulosic, metallic, plastic materials and, in general, any material in strips and produced at using a spiraling machine, a profiling machine or an extruder comprising at least one cutting assembly.

On connaît déjà, par le document FR-A 2370581, un dispositif de tronçonnage d'éléments tubulaires en carton et matériaux analogues, installé sur une machine permettant la réalisation d'emballages tubulaires constitués de bandes collées les unes sur les autres selon un pas de vis déterminé, ces bandes étant en matériaux fibreux, cellulosiques, métalliques, plastiques et autres. Ce dispositif de tronçonnage, permettant une coupe à la volée, comporte un chariot coulissant le long d'un rail maintenu par des supports. Sur ce chariot est monté un moteur électrique dont l'arbre est pourvu d'une lame de scie munie de dents. Celle-ci coopère avec un contre-rouleau de coupe solidaire du chariot. Ce dernier est solidaire d'un dispositif de translation assurant l'avance du chariot. Un certain espace est prévu entre la lame de scie et le contre-rouleau pour permettre le passage de l'élément tubulaire. Lors du tronçonnage, on provoque l'avance de la lame de scie, soumise à une rotation continue par le moteur électrique, en direction du contre-rouleau.Document FR-A 2370581 already discloses a device for cutting tubular elements of cardboard and similar materials, installed on a machine allowing the production of tubular packaging made up of strips glued to one another in a pitch of determined screw, these strips being of fibrous, cellulosic, metallic, plastic and other materials. This cutting device, allowing a cut on the fly, comprises a carriage sliding along a rail held by supports. On this carriage is mounted an electric motor, the shaft of which is provided with a saw blade provided with teeth. This cooperates with a cutting counter-roller secured to the carriage. The latter is integral with a translation device ensuring the advance of the carriage. A certain space is provided between the saw blade and the counter roller to allow the passage of the tubular element. During cutting, the saw blade is brought forward, subjected to continuous rotation by the electric motor, in the direction of the counter-roller.

On connaît également, par le document FR-A 2370582, des machines permettant de confectionner des emballages tels que définis ci-dessus. Ces machines comportent deux tambours mobiles en rotation et reliés entre eux par une courroie décrivant un mouvement hélicoïdal provoquant, d'une part, un enroulement hélicoïdal des différentes bandes de papier, en métal et autres préalablement pourvues d'une couche de colle et, d'autre part, l'avance en continu de l'élément tubulaire sur une broche. A travers cette broche coulisse un arbre sollicitant un dispositif de coupes multiples soumis à un déplacement dans l'axe d'avance de l'élément tubulaire dont les vitesses d'avance et de coupes variables sont synchronisées avec la vitesse d'avance de l'élément tubulaire. Ce dispositif comporte un nombre de lames de scie correspondant au nombre de coupes que l'on veut réaliser. Ces éléments de coupe sont soumis à un triple déplacement dans l'espace, à savoir une rotation autour de son axe, un mouvement pendulaire pour tronçonner l'élément tubulaire et un déplacement longitudinal en fonction de l'avance de l'élément tubulaire.Also known, from document FR-A 2370582, are machines making it possible to make packaging as defined above. These machines include two drums movable in rotation and connected to each other by a belt describing a helical movement causing, on the one hand, a helical winding of the different strips of paper, metal and others previously provided with a layer of glue and, d on the other hand, the continuous advance of the tubular element on a spindle. Through this spindle slides a shaft requesting a multiple cutting device subjected to a displacement in the axis of advance of the tubular element whose variable speeds of advance and cuts are synchronized with the speed of advance of the tubular element. This device comprises a number of saw blades corresponding to the number of cuts that one wants to make. These cutting elements are subjected to a triple displacement in space, namely a rotation about its axis, a pendulum movement to cut the tubular element and a longitudinal displacement according to the advance of the tubular element.

On connaît également des dispositifs de coupe comportant des couteaux et modules fixes dont l'entraînement est réalisé par l'intérieur du tube grâce à une pince extensible.Cutting devices are also known comprising knives and fixed modules, the drive of which is carried out from the inside of the tube by means of an extendable clamp.

Cependant, ces dispositifs connus présentent plusieurs inconvénients. En effet, en raison de la rotation infligée aux lames de couteau, celles-ci s'échauffent rapidement et leur coupe s'émousse. Il en résulte des défauts de coupe par suite d'un écrasement de l'élément tubulaire entre les mandrins de coupe intérieurs et les lames de couteau tournant en position fixe ou se déplaçant dans le sens d'avance de l'élément tubulaire. Même si les lames de couteau sont parfaitement affûtées, il s'ensuit un écrasement qui nuit non seulement à l'esthétique de la coupe mais également à la précision de cette dernière. De plus, on risque qu'en fin de coupe, le matériau restant à couper n'est plus suffisamment résistant pour transmettre la rotation du tube en amont de la ligne de coupe au tronçon à couper. Il en résulte en fin de coupe un arrachement dudit tronçon, ce qui nuit à la finition de la coupe.However, these known devices have several drawbacks. Indeed, due to the rotation inflicted on the knife blades, they heat up quickly and their cut dulls. This results in cutting faults due to crushing of the tubular element between the interior cutting mandrels and the knife blades rotating in a fixed position or moving in the direction of advance of the tubular element. Even if the knife blades are perfectly sharp, it follows a crushing which affects not only the aesthetics of the cut but also the precision of the latter. In addition, there is a risk that at the end of cutting, the material remaining to be cut is no longer sufficiently resistant to transmit the rotation of the tube upstream of the cutting line to the section to be cut. This results in the end of cutting a tearing of said section, which affects the finish of the cut.

On connaît également un dispositif de coupe utilisant une lame de couteau tournant à une vitesse comprise entre deux mille et cinq mille tours à la minute. La lame, étant en acier traité ou en acier de carbure de tungstène, est munie de dents droites ou coniques. Les inconvénients de ce dispositif de coupe résident dans le fait qu'il est générateur de poussière, fait beaucoup de bruit, est extrêmement dangereux et nécessite un entretien et un affûtage très tréquents de ladite lame de couteau.There is also known a cutting device using a knife blade rotating at a speed of between two thousand and five thousand revolutions per minute. The blade, being in treated steel or in tungsten carbide steel, is provided with straight or conical teeth. The drawbacks of this cutting device are that it generates dust, makes a lot of noise, is extremely dangerous and requires very careful maintenance and sharpening of said knife blade.

La présente invention a pour but de remédier à ces inconvénients. L'invention, telle qu'elle est caractérisée dans les revendications, résout le problème consistant à créer un dispositif de coupe automatique de tubes circulaires de faible, moyenne et forte épaisseur, obtenus par un collage de plusieurs bandes en matériaux fibreux, cellulosiques, métalliques, plastiques et, d'une manière générale, tout matériau en bandes et réalisé à l'aide d'une spiraleuse, d'une profileuse ou d'une extrudeuse, comportant au-moins un ensemble de coupe formé par une paire de leviers pivotant autour d'un axe situé à l'une de leurs extrémités et maintenu par des paliers solidaires du bâti alors que l'autre extrémité des mêmes paliers est reliée par un axe à un piston d'un vérin provoquant, par basculement, l'avance d'un couteau tranchant à double biseau en direction d'un mandrin fixe sur lequel tourne librement le tube circulaire issu de la spiraleuse, de la profileuse ou de l'extrudeuse, ce couteau tranchant étant pourvu d'une roue à rochet solidaire en rotation de ce dernier, couteau tranchant et roue à rochet étant montés sur un axe situé entre des axes, un vérin dont le piston est pourvu d'un cliquet coopérant avec la roue à rochet pour bloquer en rotation le couteau tranchant au moment de la coupe et pour conférer à ce dernier une rotation partielle entre deux coupes consécutives, des moyens de graissage constitués par une buse de graissage disposée à l'extrémité d'un circuit de graissage et des contre-rouleaux moteurs soumis par un motoréducteur-variateur à un mouvement de rotation synchronisé avec la vitesse de rotation du tube circulaire et entraînant ce dernier de part et d'autre de la ligne de coupe.The present invention aims to remedy these drawbacks. The invention, as characterized in the claims, solves the problem of creating an automatic device for cutting circular tubes of small, medium and large thickness, obtained by bonding several strips of fibrous, cellulosic, metallic materials , plastics and, in general, any material in strips and produced using a spiraling machine, a profiling machine or an extruder, comprising at least one cutting assembly formed by a pair of pivoting levers around an axis located at one of their ends and maintained by bearings integral with the frame while the other end of the same bearings is connected by an axis to a piston of a jack causing, by tilting, the advance a cutting knife with a double bevel in the direction of a fixed mandrel on which the circular tube coming from the spiraling machine, profiling machine or extruder freely rotates, this cutting knife being provided with a ratchet wheel integral in rotation of this last, sharp knife and ratchet wheel being mounted on an axis located between axes, a jack whose piston is provided with a pawl cooperating with the ratchet wheel to block the cutting knife in rotation at the time of cutting and to confer to the latter a partial rotation between two consecutive cuts, lubrication means constituted by a lubrication nozzle disposed at the end of a lubrication circuit and motor counter-rollers subjected by a gearmotor-variator to a synchronized rotational movement with the speed of rotation of the circular tube and driving the latter on either side of the cutting line.

Les avantages obtenus grâce à cette invention consistent essentiellement en ceci que les coupes sont parfaitement lisses, du type ciré, ayant l'aspect d'un revêtement verni et ceci sans écrasement du tube circulaire. Par ailleurs, ce dispositif de coupe de grande simplicité peut être utilisé sur les machines existantes, en cours d'élaboration ou à venir et, notamment sur toutes machines produisant des tubes compatibles avec ce dispositif de coupe d'une épaisseur de 0,2 à 30 millimètres réalisés soit par contre-collage de multi-couches de bandes, ou par extrusion ôu par laminage de plusieurs couches.The advantages obtained thanks to this invention consist essentially in that the cuts are perfectly smooth, of the waxed type, having the appearance of a varnished coating and this without crushing the circular tube. Furthermore, this very simple cutting device can be used on existing machines, in development or to come and, in particular on all machines producing tubes compatible with this cutting device with a thickness of 0.2 to 30 millimeters produced either by laminating multi-layers of strips, or by extrusion or by laminating several layers.

Selon une autre caractéristique de l'invention, chaque ensemble de coupe comporte des moyens assurant un blocage du couteau tranchant pendant le tronçonnage mais conférant audit couteau tranchant une rotation fragmentée s'effectuant entre deux coupes consécutives.According to another characteristic of the invention, each cutting assembly comprises means ensuring a blocking of the cutting knife during cutting but giving said cutting knife a fragmented rotation taking place between two consecutive cuts.

De ce fait, on évite l'échauffement de l'élément de coupe tout en permettant un auto-nettoyage et un auto-affûtage de ce dernier.Therefore, the heating of the cutting element is avoided while allowing self-cleaning and self-sharpening of the latter.

L'invention est exposée ci-après plus en détail à l'aide de dessins représentant seulement un mode d'exécution.

  • La fig. 1 représente en vue en élévation le dispositif de coupe conforme à l'invention.
  • La fig. 2 représente en vue en élévation le dispositif de coupe permettant une coupe à la volée unitaire pour spiraleuse de faible ou forte épaisseur.
  • La fig. 3 représente en vue en plan ce dispositif de coupe.
  • La fig. 4 représente en vue en élévation le dispositif de coupe selon un autre mode de réalisation.
The invention is set out below in more detail with the aid of drawings representing only one embodiment.
  • Fig. 1 shows in elevational view the cutting device according to the invention.
  • Fig. 2 shows an elevational view of the cutting device allowing unitary on-the-fly cutting for spiraling machines of small or large thickness.
  • Fig. 3 shows in plan view this cutting device.
  • Fig. 4 shows an elevational view of the cutting device according to another embodiment.

La fig. 5 représente en vue en plan le dispositif de coupe permettant une pluralité de coupes. On se réfère à la figure 1.Fig. 5 shows in plan view the cutting device allowing a plurality of cuts. We refer to figure 1.

Le dispositif de coupe 1 comporte un mandrin 2 réalisé en un matériau résistant à l'usure mais dont le coefficient de frottement est faible. Conformément à l'invention, ce mandrin 2 est fixe au point de vue rotation. Sur le pourtour extérieur 3 de ce mandrin 2 tourne librement un tube circulaire 4 en provenance d'une spiraleuse, d'une profileuse ou d'une extrudeuse. Ce tube circulaire 4 est obtenu par l'encollage de plusieurs bandes en matériaux fibreux, cellulosiques, métalliques, plastiques, et, d'une manière générale, tout matériau en bandes. Du fait que le mandrin 2 présente un coefficient de frottement très faible, le tube circulaire 4 tourne facilement sur ledit mandrin 2.The cutting device 1 comprises a mandrel 2 made of a material resistant to wear but whose coefficient of friction is low. According to the invention, this mandrel 2 is fixed from the rotation point of view. On the outer periphery 3 of this mandrel 2 freely rotates a circular tube 4 coming from a spiraling machine, a profiling machine or an extruder. This circular tube 4 is obtained by gluing several strips of fibrous, cellulosic, metallic, plastic materials, and, in general, any strip material. Because the mandrel 2 has a very low coefficient of friction, the circular tube 4 easily rotates on said mandrel 2.

Sur le pourtour extérieur 5 du tube circulaire 4 prennent appui les pourtours 6, 7 d'au moins deux contre-rouleaux 8, 9. Ces contre-rouleaux 8, 9 ont une largeur telle que leurs extrémités sont situées de part et d'autre de la ligne de coupe. Ainsi, en fin de course, l'entrainement s'exerce aussi bien sur le tube circulaire 4 que sur le tronçon situé au-delà de la ligne de coupe, ce qui évite tout risque d'arrachement dudit tronçon en fin de coupe. Du fait que le tube circulaire 4 est fragile car venant d'être cotte ou extrudé, il est nécessaire que les contre-rouleaux 8, 9 n'exercent aucune contrainte sur le tube circulaire 4 pour éviter tout écrasement de ce dernier. Ces deux contre-rouleaux 8, 9 comportant une âme en métal pourvue d'un revêtement adhérent, sont soumis à un mouvement de rotation dont la vitesse est synchronisée avec la vitesse de rotation du tube circulaire 4. Les deux contre-rouleaux 8, 9 sont solidaires en rotation d'un arbre 10, 11 disposé à une des extrémités 12,13 de deux paires de leviers 14, 15. Sur l'arbre 10, 11 est monté, solidaire en rotation, l'élément mené 16,17 d'une transmission 18, 19. Cette dernière est entraînée par un élément moteur 20, 21. Ces deux éléments moteurs 20, 21 sont solidaires en rotation d'un arbre intermédiaire 22 disposé à l'autre extrémité 23, 24 des paires de leviers 14, 15. Cet arbre intermédiaire 22 sert également d'axe de rotation 25 aux paires de leviers 14, 15. Sur cet arbre intermédiaire 22 est fixé, solidaire en rotation, un élément mené 26 d'une transmission centrale 27 dont l'élément moteur 28 est solidaire en rotation de l'arbre 29 d'un motoréducteur-variateur30.On the outer periphery 5 of the circular tube 4 bear the peripheries 6, 7 of at least two counter rollers 8, 9. These counter rollers 8, 9 have a width such that their ends are located on either side of the cutting line. Thus, at the end of the race, the drive is exerted both on the circular tube 4 and on the section located beyond the cutting line, which avoids any risk of tearing off of said section at the end of cutting. Because the circular tube 4 is fragile because it has just been rolled or extruded, it is necessary for the counter rollers 8, 9 to exert no stress on the circular tube 4 to avoid any crushing of the latter. These two counter-rollers 8, 9 comprising a metal core provided with an adherent coating, are subjected to a rotational movement whose speed is synchronized with the rotational speed of the circular tube 4. The two counter-rollers 8, 9 are integral in rotation with a shaft 10, 11 disposed at one end 12, 13 of two pairs of levers 14, 15. On the shaft 10, 11 is mounted, integral in rotation, the driven element 16, 17 d 'a transmission 18, 19. The latter is driven by a motor element 20, 21. These two motor elements 20, 21 are integral in rotation with an intermediate shaft 22 disposed at the other end 23, 24 of the pairs of levers 14 , 15. This intermediate shaft 22 also serves as an axis of rotation 25 for the pairs of levers 14, 15. On this intermediate shaft 22 is fixed, integral in rotation, a driven element 26 of a central transmission 27 including the driving element 28 is integral in rotation with the shaft 29 of a gearmotor-variator30.

Pour appliquer les deux contre-rouleaux 8, 9 contre le pourtour extérieur 5 du tube circulaire 4 ou inversement pour rompre le contact entre les deux contre-rouleaux 8, 9 et le pourtour extérieur 5 du tube circulaire 4, on prévoit pour chaque levier un vérin 31, 32. Les pistons 33, 34 de ces vérins 31, 32 sont reliés par un axe d'articulation 35, 36 à une chape 37, 38 solidaire de chacun des leviers 14, 15 alors que l'extrémité 39, 40 des vérins 31, 32 est reliée par un axe d'articulation 41,42 au bâti (non représenté) du dispositif de coupe.To apply the two counter rollers 8, 9 against the outer periphery 5 of the circular tube 4 or vice versa to break the contact between the two counter rollers 8, 9 and the outer periphery 5 of the circular tube 4, there is provided for each lever cylinder 31, 32. The pistons 33, 34 of these cylinders 31, 32 are connected by a hinge pin 35, 36 to a yoke 37, 38 secured to each of the levers 14, 15 while the end 39, 40 of cylinders 31, 32 is connected by a hinge pin 41,42 to the frame (not shown) of the cutting device.

Lorsque les deux contre-rouleaux 8, 9 sont appliqués contre le pourtour extérieur 5 du tube circulaire 4, on obtient un entraînement par friction de ce dernier par l'intermédiaire des deux contre-rouleaux 8, entraînés et synchronisés.When the two counter rollers 8, 9 are applied against the outer periphery 5 of the circular tube 4, a friction drive of the latter is obtained by means of the two counter rollers 8, driven and synchronized.

Pour le tronçonnage du tube circulaire 4, on prévoit un ensemble de coupe constitué essentiellement par un couteau usiné en double biseau très tranchant 43. Ce couteau 43 peut pivoter autour d'un axe 44 maintenu par une paire de leviers 45. Ces leviers 45 peuvent pivoter autor d'un axe 46 situé à l'une des extrémités 47 des leviers 45, cet axe 46 étant maintenu par des paliers 48 solidaires du bâti. L'autre extrémité 49 des leviers 45 est reliée par un axe 50 au piston 51 d'un vérin 52. Ce vérin 51, relié par un axe 53 au bâti, provoque le basculement des leviers 45 autour de l'axe 46. La vitesse de la course du piston 51 du vérin 52 est réglable en fonction de la vitesse de rotation du tube circulaire 2. Au cours de ce basculement, le couteau 43 pénètre dans le tube circulaire 4, Conformément à l'invention, le couteau tranchant 43 est, en phase de coupe, bloqué en rotation. A cet effet, le couteau tranchant 43 comporte une roue à rochet 54 solidaire en rotation dudit couteau tranchant 43. Les dents 55 de cette roue à rochet 54 coopèrent avec un cliquet 56 solidaire d'un piston 57 d'un vérin 58 rendu par un n axe d'articulation 59 au piston 51 du vérin 52. En phase de coupe, le cliquet 56 bloque en rotation la roue à rochet 54 et, par voie de conséquence, bloque en rotation le couteau tranchant 43. Après la coupe, on actionne le vérin 58. Le cliquet 56 provoque une rotation partielle du couteau tranchant 43. De ce fait, ce dernier est soumis à une rotation fragmentée. Ainsi, on évite un échauffement de l'élément de coupe 43 et on peut prévoir des moyens assurant l'auto-nettoyage et l'auto-affûtage dudit couteau tranchant 43. Par ailleurs, on prévoit également des moyens de graissage 60 constitués par une buse de graissage 61 disposée à l'extrémité d'un circuit de graissage 62.For cutting the circular tube 4, a cutting assembly is provided which consists essentially of a knife machined in a very sharp double bevel 43. This knife 43 can pivot around an axis 44 held by a pair of levers 45. These levers 45 can autor pivot an axis 46 located at one end 47 of the levers 45, this axis 46 being held by bearings 48 integral with the frame. The other end 49 of the levers 45 is connected by an axis 50 to the piston 51 of a cylinder 52. This cylinder 51, connected by an axis 53 to the frame, causes the levers 45 to tilt around the axis 46. The speed of the stroke of the piston 51 of the jack 52 is adjustable as a function of the speed of rotation of the circular tube 2. During this tilting, the knife 43 enters the circular tube 4. According to the invention, the sharp knife 43 is , during the cutting phase, blocked in rotation. To this end, the cutting knife 43 comprises a ratchet wheel 54 integral in rotation with said cutting knife 43. The teeth 55 of this ratchet wheel 54 cooperate with a pawl 56 secured to a piston 57 of a jack 58 rendered by a n hinge pin 59 to the piston 51 of the cylinder 52. In the phase of cutting, the pawl 56 blocks in rotation the ratchet wheel 54 and, consequently, blocks in rotation the cutting knife 43. After the cutting, the jack 58 is actuated. The pawl 56 causes a partial rotation of the cutting knife 43. As a result, the latter is subject to fragmented rotation. Thus, overheating of the cutting element 43 is avoided and it is possible to provide means ensuring the self-cleaning and the self-sharpening of said cutting knife 43. Furthermore, lubrication means 60 are also provided, consisting of a lubrication nozzle 61 disposed at the end of a lubrication circuit 62.

Lorsque le couteau tranchant 43 atteint le mandrin 2, le tube circulaire 2 est coupé net et sans bavure car les deux parties du tube circulaire 2 situées de part et d'autre de la ligne de coupe sont encore entraînées par les contre-rouleaux 8, 9 sans glissement l'une par rapport à l'autre.When the cutting knife 43 reaches the mandrel 2, the circular tube 2 is cut clean and without burrs because the two parts of the circular tube 2 located on either side of the cutting line are still driven by the counter rollers 8, 9 without sliding relative to each other.

On se réfère aux figures 2 et 3 représentant un autre mode de réalisation du dispositif de coupe 1 soumis à un déplacement dans le sens de l'avance du tube circulaire 4. A cet effet, on prévoit une table 63 coulissant sur des glissières 64, 65 dont les extrémités 66, 67, 68, 69 sont maintenues par des supports 70, 71, 72, 73 solidaires du bâti. Le déplacement de la table 63 est assuré par un motoréducteur-variateur 74 dont l'arbre 75 est pourvu d'une vis 76 sur laquelle se déplace un écrou 77 monté sur l'extrémité 78 d'un support 79 solidaire de la table 63. Par rapport au plan médian 80 de cette dernière, on prévoit également des moyens permettant de déplacer l'ensemble de coupe par rapport à la table 63. Ces moyens sont une ou deux poutres réglables 81, 82 sur lesquelles coulisse un porte-couteau 83. Sur ce porte-couteau 83 sont disposés les leviers 45, le vérin 52 provoquant l'avance du couteau tranchant 43 avec sa roue à rochet 54 en direction du mandrin 2, le vérin 58 avec son cliquet 56 er les moyens de graissage 60.Reference is made to FIGS. 2 and 3 showing another embodiment of the cutting device 1 subjected to a movement in the direction of advance of the circular tube 4. For this purpose, a table 63 sliding on slides 64 is provided, 65, the ends 66, 67, 68, 69 of which are held by supports 70, 71, 72, 73 secured to the frame. The movement of the table 63 is ensured by a gearmotor-variator 74, the shaft 75 of which is provided with a screw 76 on which moves a nut 77 mounted on the end 78 of a support 79 integral with the table 63. Relative to the median plane 80 of the latter, means are also provided making it possible to move the cutting assembly relative to the table 63. These means are one or two adjustable beams 81, 82 on which a knife holder 83 slides. On this knife holder 83 are arranged the levers 45, the jack 52 causing the cutting knife 43 to advance with its ratchet wheel 54 towards the mandrel 2, the jack 58 with its pawl 56 and the lubrication means 60.

Le tube circulaire 4 pouvant présenter une certaine longueur, on prévoit un mandrin de formage 84 également solidaire du bâti. A travers ce mandrin de formage 84 passe une liaison mécanique 85 pour maintenir immobile le mandrin 2.Since the circular tube 4 may have a certain length, a forming mandrel 84 is also provided, which is also integral with the frame. Through this forming mandrel 84 passes a mechanical connection 85 to keep the mandrel 2 stationary.

Par suite du déplacement de la table 63, il est nécessaire de prévoir des moyens assurant l'entraînement des contre-rouleaux 8, 9 maintenus par les leviers 141, 142, 151, 152. L'arbre 29 du motoréducteur-variateur 30 est accouplé à un arbre secondaire 86. Cet arbre secondaire 86 entraîne en rotation l'élément moteur 28 de la transmission centrale 27 tout en permettant un coulissement dudit élément moteur 28 sur l'arbre secondaire 86.As a result of the movement of the table 63, it is necessary to provide means ensuring the driving of the counter rollers 8, 9 maintained by the levers 14 1 , 14 2 , 15 1 , 15 2 . The shaft 29 of the gearmotor-variator 30 is coupled to a secondary shaft 86. This secondary shaft 86 rotates the motor element 28 of the central transmission 27 while allowing said motor element 28 to slide on the secondary shaft 86.

Pour éviter un glissement du tronçon 41 par rapport au tube circulaire 4 provoquant un arrachement de la matière, on confère aux contrerou- leaux 8, une certaine longueur pour que ces derniers assurent un entraînement constant de part et d'autre de la ligne de coupe 87 aussi bien du tube circulaire 4 que du tronçon 41 et ceci, jusqu'à ce que la coupe soit entièrement réalisée. Comme visible à la figure 2, on a remplacé les vérins 31, 32 par un vérin unique 88 actionnant en sens contraire des pistons 89, 90, ce qui permet de conférer aux leviers 141, 142, 151, 152 des mouvements synchronisés pour le rapprochement ou l'éloignement des contre-rouleaux 8, 9 par rapport au tube circulaire 4.To prevent the section 41 from sliding relative to the circular tube 4 causing the material to be torn off, the counter-rollers 8 are given a certain length so that the latter ensure constant drive on either side of the cutting line 87 as well of the circular tube 4 as of the section 4 1 and this, until the cut is completely carried out. As can be seen in FIG. 2, the jacks 31, 32 have been replaced by a single jack 88 actuating pistons 89, 90 in the opposite direction, which makes it possible to give the levers 14 1 , 14 2 , 15 1 , 15 2 movements synchronized for bringing the counter rollers 8, 9 closer or further away from the circular tube 4.

On se réfère aux figures 4 et 5.We refer to Figures 4 and 5.

Le dispositif de coupe conforme à l'invention peut être monté sur des machines destinées à couper ou à recouper des tubes circulaires 4 soit unitairement, soit à coupes multiples. A cet effet, on prévoit un chariot mobile 91 composé de deux supports 92, 93 disposés perpendiculairement au mandrin fixe 2. Les extrémités 94,95,96,97 de ces supports 92, 93 sont pourvues de coussinets 98, 99, 100, 101 coulissant sur des glissières 102, 103 maintenues par des supports 104, 105, 106, 107 solidaires du bâti. Entre les deux supports 92, 93 est prévue la poutre réglable 81 comportant une pluralité de porte-couteaux 83 pourvus chacun des leviers 45, du vérin 52 provoquant l'avance du couteau tranchant 43 pourvu de sa roue à rochet 53 en direction du mandrin 2, du vérin 58 avec son cliquet 56 et les moyens de graissage 60.The cutting device according to the invention can be mounted on machines intended to cut or cut circular tubes 4 either individually or with multiple cuts. For this purpose, there is provided a movable carriage 91 composed of two supports 92, 93 arranged perpendicular to the fixed mandrel 2. The ends 94, 95, 96, 97 of these supports 92, 93 are provided with bearings 98, 99, 100, 101 sliding on slides 102, 103 held by supports 104, 105, 106, 107 integral with the frame. Between the two supports 92, 93 is provided the adjustable beam 81 comprising a plurality of knife holders 83 each provided with levers 45, with the jack 52 causing the cutting knife 43 provided with its ratchet wheel 53 to move towards the mandrel 2 , of the jack 58 with its pawl 56 and the lubrication means 60.

Selon un premier mode de réalisation, on dispose entre les deux supports 92, 93 des contre-rouleaux 8, 9 s'étendant d'un support 92 à l'autre 93 et entraînés sur toute leur longueur. Ces contre-rouleaux 8, 9, étant maintenus par les leviers 14, 15 sont entraînés par le motoréducteur-variateur 30 par l'intermédiaire de la transmission centrale 27, l'arbre intermédiaire 22 et les transmissions 18, 19.According to a first embodiment, there are between the two supports 92, 93 counter rollers 8, 9 extending from one support 92 to the other 93 and driven over their entire length. These counter rollers 8, 9, being held by the levers 14, 15 are driven by the gearmotor-variator 30 by means of the central transmission 27, the intermediate shaft 22 and the transmissions 18, 19.

Selon un second mode de réalisation, on dispose entre les deux supports 92, 93 des contre-rouleaux individuels 81, 82, 83, 84 ... entraînés par unité de coupe. Pour chaque contre-rouleau individuel 81, 82, 83, 84 ..., on prévoit les leviers 141, 142 et 151, 152 et les transmissions 18,19 entraînés par l'arbre intermédiaire 22.According to a second embodiment, there are between the two supports 92, 93 individual counter rollers 8 1 , 8 2 , 8 3 , 8 4 ... driven by cutting unit. For each individual counter roller 8 1 , 8 2 , 8 3 , 8 4 ..., there are provided the levers 14 1 , 14 2 and 15 1 , 15 2 and the transmissions 18,19 driven by the intermediate shaft 22.

Le cas échéant, on peut intercaler entre l'arbre intermédiaire 22 et les transmissions 18, 19 des transmissions secondaires 108, 109 transmettant l'entraînement depuis l'arbre intermédiaire 22 aux contre-rouleaux 8, 9 via les transmissions secondaires 108, 109 et les transmissions 18,19. Les transmissions secondaires 108, 109 sont maintenues par de traverses fixes 110, 111. La liaison 112, 113 entre ces dernières et les leviers 14, 15 sert d'axe de rotation à ces derniers.If necessary, it is possible to interpose between the intermediate shaft 22 and the transmissions 18, 19 of the secondary transmissions 108, 109 transmitting the drive from the intermediate shaft 22 to the counter rollers 8, 9 via the secondary transmissions 108, 109 and transmissions 18.19. The secondary transmissions 108, 109 are held by fixed crosspieces 110, 111. The link 112, 113 between the latter and the levers 14, 15 serves as an axis of rotation for the latter.

Le déplacement du chariot mobile 91 est assuré par le motoréducteur-variateur 74 dont l'arbre 75 est pourvu de la vis 76 sur laquelle se déplace l'écrou 77 solidaire de l'une des extrémités 114, 115 de deux axes 116, 117 dont l'autre extrémité 118,119 est solidaire du chariot mobile 91.The movement of the mobile carriage 91 is ensured by the gearmotor-variator 74, the shaft 75 of which is provided with the screw 76 on which the nut 77 moves, secured to one of the ends 114, 115 of two axes 116, 117 of which the other end 118, 119 is integral with the mobile carriage 91.

Claims (6)

1. Automated apparatus for cutting circular tubes of low, medium and great thickness obtained by glueing several strips made of fibrous, cellulose, metallic, plastic materials and, in general, any material in strips and made by means of a spiral, profiling or extruding machine equipped with one cutting unit, at least, characterized in that it comprises a fixed mandrel (2) on which revolves freely the circular tube (4) that comes from the spiral machine, the profiling or extruding machine and that co-operates with the cutting unit that consists of:
- one pair of Jevers (45) that revolve around an axle (46) located at one of their ends (47) and that is being secured by bearings (48) fitted solidly to the frame while the other end (49) of the same bearings (45) is linked through an axle (50) to a piston (51) of a jack (52) that causes, by tilting, a double bevel cutting knife (43) to advance in the direction of the fixed mandrel (2), with this cutting knife (43) provided with a ratchet wheel (54) fitted solidly, in rotation, to the latter, with the cutting knife (43) and the ratchet wheel (54) assembled to an axle (44) located between axles (46) and (50);
- one jack (58), the piston (57) of which is fitted with a ratchet (56) that co-operates with the ratchet wheel (54) for the purpose of locking, in rotation, the cutting knife (43) at the moment of the cutting and in view of conferring on the latter a partial rotation between two consecutive cuts;
- lubricating means (60) that consist of a lubricating nozzle (61) fitted to the end of a lubricating circuit (62) and moving counter-rollers (8, 9) that are subjected by a variable speed geared motor (30) to a rotation movement synchronized with the speed of rotation of the circular tube (4) and that drives the latter without any constraint on the fixed mandrel (2) on both sides of the cutting line (87).
2. Automated cutting apparatus according to claim 1, characterized in that it comprises at least one knifeholder (83) that slides on at least one adjustable beam (81) fitted solidly either to a mobile table (63) or to a mobile carriage (91), with the displacement of the mobile table (63) or of the mobile carriage (91) being ensured by driving means that consist of a variable speed geared motor (74), the shaft (75) of which is fitted with a bolt (76) on which is moving a nut (77) that is fitted solidly to the mobile table (63) or the mobile carriage (91).
3. Automated cutting apparatus according to claim 1, characterized in that it comprises for each counterroller (8, 9) that has a metal core provided with an adhering lining, one pair of levers (14,15) that revolve around an axle of rotation (25) that consists of an intermediate shaft (22) linked through a transmission (18, 19) to the shaft (10, 11) on which is assembled the counterroller (8, 9), with the counter-rollers (8, 9) being driven by driving means that consist of a variable speed geared motor (30), the shaft (29) of which is fitted with a driving element (28) that is driving via a central transmission (27) a driven element (26) fitted solidly, in rotation, to the intermediate shaft (22).
4. Automated cutting apparatus according to claim 1, characterized in that it comprises, in view of applying the two counter-rollers (8, 9) against the outer periphery (5) of the circular tube (4) or, vice versa, in view of breaking the contact between the two counter-rollers (8, 9) and the outer periphery (5) of the circular tube (4), one jack (31, 32) fitted between each of the levers (14, 15) and the frame, with the piston (33, 34) linked through an articulated axle (35, 36) to a cover (37, 38) fitted solidly to each of the levers (14, 15) while the end (39, 40) is linked through an articulated axle (41, 42) to the frame, with one jack (88) being fitted between the two levers (14,15) and provided with two pistons (89, 90) with actuation in the opposite direction.
5. Automated cutting apparatus according to claim 1, characterized in that the counter-rollers (8, 9) have a width such that they ensure the driving of the circular tube (4) on both sides of the cutting line (87).
6. Automated cutting apparatus according to claim 1, characterized in that the mobile table (63) that is sliding on slide bars (62, 65), the ends (66 to 69) of which are being secured by supports (70 to 73) that are fitted solidly to the frame, comprises one cutting unit and one unit of counter-rollers (8, 9) while the mobile carriage (91) that consists of two supports (92, 93) perpendicular to the fixed mandrel (2), the ends (94 to 97) of which are fitted with friction bearings (98 to 101) that are sliding on slide bars (102, 103) secured by supports (104 to 107) fitted solidly to the frame, comprises several cutting units that are co-operating with counter-rollers (8, 9) that are extending over the entire length of the mobile carriage (91) or with a plurality of counter-rollers (81, 82, 83, 84 ... ),
EP85440038A 1984-06-08 1985-06-03 Apparatus for cutting carton tubes and the like Expired EP0168334B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85440038T ATE34691T1 (en) 1984-06-08 1985-06-03 CUTTING DEVICE FOR PIPES MADE OF PAPER AND OTHER MATERIALS.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8409176A FR2565520B1 (en) 1984-06-08 1984-06-08 DEVICE FOR AUTOMATIC CUTTING OF CARDBOARD TUBES AND THE LIKE
FR8409176 1984-06-08

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EP0168334A1 EP0168334A1 (en) 1986-01-15
EP0168334B1 true EP0168334B1 (en) 1988-06-01

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US (1) US4693149A (en)
EP (1) EP0168334B1 (en)
JP (1) JPS6195896A (en)
AT (1) ATE34691T1 (en)
DE (1) DE3562996D1 (en)
FR (1) FR2565520B1 (en)

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US3985051A (en) * 1974-01-07 1976-10-12 Teledyne Mid-America Corporation Apparatus for cutting and grooving a pipe
US3933063A (en) * 1974-10-02 1976-01-20 Judelshon Industries, Inc. Turret roll slitting machine
DE2553485C3 (en) * 1975-11-28 1980-03-20 Hugo 7700 Singen Eppler Device for cutting through concrete pipes using a cutting disc
FR2370582A1 (en) * 1976-11-10 1978-06-09 Sireix Georges Tube forming machine using helical wrapping of cardboard - has travelling rotary cutters driven by variable dia. pulleys to form helix
FR2370581A1 (en) * 1976-11-10 1978-06-09 Sireix Georges Parting machine for cardboard tubes - has saw and disc mounted on slide and tube holding mandrel
US4299147A (en) * 1979-09-06 1981-11-10 Donald V. Hanlon Method and apparatus for cutting can bodies
DE3008616C2 (en) * 1980-03-06 1984-03-08 Allgemeine Bau-Chemie Ohlmeyer & Co KG, 4937 Lage Method and device for producing pipe sections from a cylindrical pipe, in particular a plastic pipe
US4362187A (en) * 1980-08-05 1982-12-07 Manville Service Corporation Spirally-formed thermoplastic tube

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113635380A (en) * 2021-10-14 2021-11-12 江苏众成复合材料有限责任公司 Glass steel pipeline production processingequipment
CN113635380B (en) * 2021-10-14 2022-03-11 江苏众成复合材料有限责任公司 Glass steel pipeline production processingequipment

Also Published As

Publication number Publication date
FR2565520A1 (en) 1985-12-13
JPS6195896A (en) 1986-05-14
EP0168334A1 (en) 1986-01-15
US4693149A (en) 1987-09-15
DE3562996D1 (en) 1988-07-07
FR2565520B1 (en) 1986-09-05
ATE34691T1 (en) 1988-06-15

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