EP0074453A1 - Method and apparatus for manufacturing spirally wound paper tubes, and tubes produced by such a method - Google Patents

Method and apparatus for manufacturing spirally wound paper tubes, and tubes produced by such a method Download PDF

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Publication number
EP0074453A1
EP0074453A1 EP81402094A EP81402094A EP0074453A1 EP 0074453 A1 EP0074453 A1 EP 0074453A1 EP 81402094 A EP81402094 A EP 81402094A EP 81402094 A EP81402094 A EP 81402094A EP 0074453 A1 EP0074453 A1 EP 0074453A1
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EP
European Patent Office
Prior art keywords
mandrel
aforementioned
angle
paper
strips
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
EP81402094A
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German (de)
French (fr)
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EP0074453B1 (en
Inventor
Jean-Louis Meyer
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.)
Abzac SA
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Abzac SA
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Publication date
Application filed by Abzac SA filed Critical Abzac SA
Priority to AT81402094T priority Critical patent/ATE21498T1/en
Publication of EP0074453A1 publication Critical patent/EP0074453A1/en
Application granted granted Critical
Publication of EP0074453B1 publication Critical patent/EP0074453B1/en
Expired legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31C—MAKING WOUND ARTICLES, e.g. WOUND TUBES, OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31C3/00—Making tubes or pipes by feeding obliquely to the winding mandrel centre line

Definitions

  • the present invention relates and essentially relates to a method for manufacturing a tube, in particular cardboard, by helically winding a strip or several strips of paper, and a machine for implementing this process.
  • the strip of paper or cardboard or the multiple strips of paper or cardboard are partially overlapping and transversely offset with respect to each other and form a sheet.
  • the pitch for winding a strip of paper will depend on the width of said strip of paper, the diameter of the mandrel, and the value of the angle of winding of said strip of paper formed between the direction of unwinding of the paper strip and the longitudinal axis of the fixed mandrel. Therefore, the characteristics of the tube produced depend on the rolled paper, but also on the year gle of winding said strip of paper.
  • a manufacturing machine comprising a fixed frame carrying the fixed mandrel and a movable frame making it possible to unwind the strip of paper or the web of strips of paper on the fixed mandrel in a direction of unwinding determined by the desired winding angle.
  • the movable chassis of the known manufacturing machine is pivotally fixed around a fictitious vertical axis located in the vertical plane of the horizontal longitudinal axis of the mandrel. At the start of each manufacturing cycle, the winding angle was adjusted manually, in other words, the direction of unwinding of the paper strips, by manual movement of the movable frame.
  • This process has many drawbacks and requires a painful and imprecise long adjustment (to several degrees) of the winding angle, in particular due to the large dimensions of the mobile chassis.
  • this adjustment was empirical because it was not possible to precisely measure the angle formed between the fictitious axis of pivoting of the movable frame and the longitudinal axis of the mandrel, moreover since this adjustment is manual, this required Workforce.
  • the main object of the present invention is to remedy these drawbacks by proposing a manufacturing method allowing precise measurement and control of the current winding angle formed between the direction of unwinding of the paper strips and the longitudinal axis of the mandrel. , and in addition to automatically control the angular displacement of the movable chassis to obtain a current winding angle equal to the set or predetermined winding angle.
  • a manufacturing method allowing precise measurement and control of the current winding angle formed between the direction of unwinding of the paper strips and the longitudinal axis of the mandrel.
  • automatically control the angular displacement of the movable chassis to obtain a current winding angle equal to the set or predetermined winding angle.
  • the subject of the invention is a method of manufacturing a tube, in particular cardboard, by helically winding a strip or several strips of paper with partial covering and transversely offset relative to each other by forming a sheet, around a fixed mandrel by rotationally driving the tube in formation, characterized in that it consists in automatically and preferably continuously adjusting the winding angle of said paper strips defined between the common direction of unwinding of said paper strips and the longitudinal axis of said mandrel, by measuring the current winding angle, by comparing the value thus measured of the current winding angle with a set value of said angle, and by controlling an angular displacement of said direction of unwinding of the paper strips with respect to the longitudinal axis of the mandrel so that the measured value of said winding angle is equal to the predetermined set value.
  • the above-mentioned sheet of paper web is moved in a rectilinear and reversible manner in a direction perpendicular to the above-mentioned unwinding direction.
  • the paper strip at one end of the ply is wound on the above-mentioned fixed mandrel as close as possible to the mandrel holder, whatever the winding angle chosen so as not to lose winding space between the device for rotating the tube in formation and the mandrel holder.
  • the invention also relates to a machine for implementing the method described above and comprising a fixed frame supporting a fixed winding mandrel and a system for rotating the tube in formation, and a movable frame supporting in particular a device for unwinding one or more strips of paper, a device for gluing said strips of paper and a system for positioning and guiding these strips of paper to form the aforementioned sheet, said movable frame being connected to said fixed frame by a coupling device articulated in rotation about a pivot axis whose fictitious axis cuts perpendicularly the longitudinal axis of said mandrel, and being mounted rolling on tracks concentric with said pivot axis, characterized in that it comprises means for controlling the angular displacement of the aforementioned mobile chassis slaved to a set value of the winding angle of said sheet on said fixed mandrel.
  • the aforementioned control means comprise a device for measuring the current winding angle of the strips of paper on the mandrel, said device emitting a signal corresponding to the current winding angle measured , a device for displaying the predetermined set value of the winding angle, a device for comparing said signal to said set value and a control device controlled by said comparison device controlling the operation of a motor reversible drive at least one drive wheel of said movable chassis.
  • the axis of the fixed mandrel is substantially horizontal and the aforementioned pivot axis of the coupling of the mobile chassis is substantially vertical.
  • the aforementioned current winding angle measuring device and the aforementioned setpoint display device are potentiometer devices, advantageously the setpoint is expressed in sine of the winding angle.
  • the aforementioned movable chassis is mounted on the aforementioned coupling device so as to be displaceable by rectilinear transverse translation on said coupling device.
  • this fixing of the mobile chassis to its coupling is a screw-nut system actuated by a motor operating in synchronization with the aforementioned motor driving the driving wheel of said mobile chassis.
  • the rotational drive of the tube in formation is constituted by an endless belt wound around said tube in formation and driven by two drums with vertical axis perpendicular to the longitudinal horizontal axis of the mandrel, carried by a movable turret possibly in translation parallel to the longitudinal axis of the mandrel and / or movable in angular orientation relative to said axis longitudinal of the mandrel.
  • the angle formed between the horizontal perpendicular to the longitudinal axis of the mandrel and the line passing through the two vertical axes of the aforementioned drums is adjusted to determine the degree of opening or closing of the upper turn of the tube.
  • the invention also relates to a cardboard tube manufactured by the process defined above.
  • the cardboard tube manufacturing machine comprises, in a conventional manner, a fixed frame 1, and a movable frame 2 connected to the fixed frame 1 by a coupling system 3 such as a drawbar d '' metal hitch, mounted swivel around a pivot axis 4 fixed on the fixed frame 1 and whose axis is substantially vertical and perpendicularly cuts the longitudinal x axis of the mandrel 8 which will be described below.
  • a coupling system 3 such as a drawbar d '' metal hitch
  • the mobile chassis is mounted rolling, by means of wheels 7 shown diagrammatically, on rolling tracks or rails 6 arranged concentrically with the pivot axis 4.
  • the mobile chassis 2 of the manufacturing machine of the invention advantageously supports a device for unwinding a strip or several strips of paper, a device for gluing one side of these strips of paper and a positioning and guiding the paper strip or said paper strips to form a sheet in which the multiple strips partially overlap and are transversely offset with respect to each other.
  • These unwinding and gluing devices as well as the aforementioned positioning and guidance system are very well known in the field of cardboard tube manufacturing and will therefore not be described in detail, moreover they are not shown in detail in Figure 1 for the sake of clarity thereof.
  • the mobile chassis 2 comprises fixed on its end 2a not connected to the fixed chassis 1, two driving wheels 9 supporting at least one part of said movable chassis by the wheel mounting assembly 10.
  • the driving of these wheels is controlled by a motor 11 in particular an electric motor driving a transmission system 12 with toothed wheels and chains, for example.
  • the chassis 2 can be moved around the pivot axis 4 on the rails 6 by rotation of the drive wheels 9, driven in movement by the motor 11 with reversible drive.
  • the mobile chassis 2 is fixed to its coupling 3 by a screw-nut system comprising an endless screw 13 and rollers 14 for rolling driven by said screw, allowing rectilinear and transverse translation of the movable frame 2 relative to its coupling and therefore relative to the direction of unwinding of the paper web y.
  • the drive of the worm is carried out by a motor 15, for example by a geared motor and a transmission system 16 with chain sprockets or belt pulleys.
  • the fixed frame 1 comprises a mandrel holder 17 preferably fixed at one end of the fixed frame 1, a preferably cylindrical mandrel 8 fixed on the mandrel holder 17 and having a longitudinal axis x preferably substantially horizontal.
  • the mandrel 8 preferably extends over a fairly large length so as to serve as a guide support for the tube 18 of cardboard being formed during its linear movement towards the end of said mandrel 8.
  • the cardboard tube 8 in formation is rotated by an endless belt 19 wound in a simple loop around the tube in formation, preferably with its strands crossed, as illustrated in FIG. belt is driven by two drums 20 with a vertical axis carried by a turret 21 movable on the one hand in translation parallel to the fixed axis of the mandrel 8 on for example slides 22 for lateral displacement, and on the other hand movable in angular position by relative to the longitudinal axis x of the mandrel, so that the straight line z passing through the vertical axes of the drums 20 define an angle 6, in the horizontal plane, with a perpendicular to the longitudinal x axis of the mandrel 8.
  • the angular orientation of the belt 19 and its lateral position relative to the mandrel is adjusted manually or automatically by cranks 23, 24, for example.
  • the means for controlling the angular displacement of the movable frame 2 relative to the fixed frame 1 comprise a measuring device shown schematically at 26 of the angle of winding of the paper around the mandrel 8 or preferably the angle ⁇ defined between the direction y, preferably substantially horizontal, of unwinding the paper and the perpendicular in the horizontal plane to the longitudinal X axis of the mandrel 8.
  • This device which is for example a device with potentiometer, emits a signal which is applied to a comparison device 27.
  • This device tif comparison 27 receives a signal from a display device 28 of a set value of the angle ⁇ .
  • this display device 28 is a potentiometer device calibrated in value of sinus ⁇ .
  • the sound comparison device emits a signal to a control device 29 when the two signals transmitted respectively by the measurement device 26 and the display device 28 are not identical.
  • the device 29 controls the operation of the motor 11 for driving the drive wheels 9 and the angular displacement of the chassis 2 so that the current angle measured by the measurement device 26 corresponds to the set value of the eagle ⁇ displayed by the display device 28.
  • the movable fixing in transverse rectilinear translation of the chassis 2 on its coupling 3 allows, for example when changing the winding angle, to arrange the strip of paper 25 forming the end of the sheet, the more as close as possible to the mandrel support 17 to avoid any loss of mandrel length between the mandrel support 17 and the drive belt 19.
  • the translation drive motor 15 operates in synchronized manner, for example by speed variation with the drive wheel control motor 11.
  • the present invention provides a method for adjusting automatically, precisely without manual intervention on the machine, the angle of winding of the paper strips around the fixed mandrel 8, and on the other hand, by adjusting the angle 9, in other words of the inclination of the belts relative to the longitudinal axis x of the mandrel the degree of opening or closing of the last turn of paper wound on the tube in formation.
  • the present invention therefore makes it possible to automate the operation of a machine for manufacturing cardboard tubes, and mainly to allow very precise and very rapid adjustment of the angle of winding of the paper around the mandrel, as well as to maintain this constant angle throughout the manufacturing cycle.
  • the movable frame 1 can also support all the elements, devices for shaping strips of paper before they are wound around the fixed mandrel, and moreover that this movable frame can only support the guidance and positioning the paper strips before winding to position them in the direction of unwinding g.

Abstract

The invention relates to a method and a machine for manufacturing tubes particularly of paperboard or cardboard by helical winding of a strip or of several strips of paper. This machine comprises a stationary frame supporting a stationary winding mandrel, a system for driving in rotation the tube in formation and a movable frame supporting in particular a device for positioning and guiding the paper strips to form a web, this movable frame being connected to the stationary frame by a coupling device in rotation around a swivel pin. This machine comprises operating means for angular displacement of the said movable frame monitored by a preset value of the angle of winding of the web on the stationary mandrel.

Description

La présente invention concerne et a essentiellement pour objet un procédé de fabrication de tube notamment en carton par enroulement hélicoïdal d'une bande ou plusieurs bandes de papier, et une machine pour la mise en oeuvre de ce procédé.The present invention relates and essentially relates to a method for manufacturing a tube, in particular cardboard, by helically winding a strip or several strips of paper, and a machine for implementing this process.

On sait déjà fabriquer des tubes en carton par enroulement hélicoïdal d'une ou plusieurs bandes préencollées de papier ou de carton sur un mandrin fixe. Dans ce procédé, le tube en formation est entraîné en rotation autour du mandrin fixe.It is already known to manufacture cardboard tubes by helical winding of one or more pre-glued strips of paper or cardboard on a fixed mandrel. In this process, the tube being formed is rotated around the fixed mandrel.

Dans ce procédé connu, la bande de papier ou de carton ou les bandes multiples de papier ou de carton sont à recouvrement partiel et transversalement décalées les unes par rapport aux autres et forment nappe. Ainsi, le pas d'enroulement d'une bande de papier sera fonction de la largeur de ladite bande de papier, du diamètre du mandrin, et de la valeur de l'angle d'enroulement de ladite bande de papier formée entre la direction de dévidement de la bande de papier et l'axe longitudinal du mandrin fixe. Donc, les caractéristiques du tube fabriqué sont fonction du papier enroulé, mais également de l'angle d'enroulement de ladite bande de papier.In this known method, the strip of paper or cardboard or the multiple strips of paper or cardboard are partially overlapping and transversely offset with respect to each other and form a sheet. Thus, the pitch for winding a strip of paper will depend on the width of said strip of paper, the diameter of the mandrel, and the value of the angle of winding of said strip of paper formed between the direction of unwinding of the paper strip and the longitudinal axis of the fixed mandrel. Therefore, the characteristics of the tube produced depend on the rolled paper, but also on the year gle of winding said strip of paper.

Pour la mise en oeuvre de ce procédé connu, on utilise une machine de fabrication comprenant un châssis fixe portant le mandrin fixe et un châssis mobile permettant de dévider la bande de papier ou la nappe de bandes de papier sur le mandrin fixe selon une direction de dévidement déterminée par l'angle d'enroulement désiré. Pour cela, le châssis mobile de la machine de fabrication connue est fixé de manière pivotante autour d'un axe vertical fictif situé dans le plan vertical de l'axe longitudinal horizontal du mandrin. En début de-chaque cycle de fabrication, on réglait manuellement l'angle d'enroulement, en d'autres termes, la direction de dévidement des bandes de papier, par un déplacement manuel du châssis mobile.For the implementation of this known method, a manufacturing machine is used comprising a fixed frame carrying the fixed mandrel and a movable frame making it possible to unwind the strip of paper or the web of strips of paper on the fixed mandrel in a direction of unwinding determined by the desired winding angle. For this, the movable chassis of the known manufacturing machine is pivotally fixed around a fictitious vertical axis located in the vertical plane of the horizontal longitudinal axis of the mandrel. At the start of each manufacturing cycle, the winding angle was adjusted manually, in other words, the direction of unwinding of the paper strips, by manual movement of the movable frame.

Ce procédé présente de nombreux inconvénients et demande un réglage long pénible et imprécis (à plusieurs degrés près) de l'angle d'enroulement, notamment dû aux dimensions importantes du châssis mobile. De plus, ce réglage était empirique car il n'était pas possible de mesurer précisément l'angle formé entre l'axe fictif de pivotement du châssis mobile et l'axe longitudinal du mandrin, en outre comme ce réglage est manuel, cela nécessitait de la main d'oeuvre.This process has many drawbacks and requires a painful and imprecise long adjustment (to several degrees) of the winding angle, in particular due to the large dimensions of the mobile chassis. In addition, this adjustment was empirical because it was not possible to precisely measure the angle formed between the fictitious axis of pivoting of the movable frame and the longitudinal axis of the mandrel, moreover since this adjustment is manual, this required Workforce.

La présente invention a pour but principal de remédier à ces inconvénients en proposant un procédé de fabrication permettant de mesurer et contrôler de maniéré précise l'angle d'enroulement actuel formé entre la direction de dévidement des bandes de papier et l'axe longitudinal du mandrin, et de plus de commander de manière automatique le déplacement angulaire du châssis mobile pour obtenir un angle d'enroulement actuel égal à l'angle d'enroulement de consigne ou prédéterminé. Ainsi, il est possible de positionner le châssis mobile, en début de chaque cycle de fabrication et au cours du cycle de fabrication, de manière automatique sans intervention manuelle pour obtenir un angle d'enroulement déterminé, sans intervention manuelle sur ledit châssis mobile.The main object of the present invention is to remedy these drawbacks by proposing a manufacturing method allowing precise measurement and control of the current winding angle formed between the direction of unwinding of the paper strips and the longitudinal axis of the mandrel. , and in addition to automatically control the angular displacement of the movable chassis to obtain a current winding angle equal to the set or predetermined winding angle. Thus, it is possible to position the mobile chassis, at the start of each manufacturing cycle and during the manufacturing cycle, automatically without manual intervention to obtain a determined winding angle, without manual intervention on said mobile chassis.

A cet effet, l'invention a pour objet un procédé de fabrication de tube notamment en carton par enroulement hélicoïdal d'une bande ou plusieurs bandes de papier à recouvrement partiel et transversalement décalées les unes par rapport aux autres en formant nappe, autour d'un mandrin fixe par entraînement en rotation du tube en formation, caractérisé en ce qu'il consiste à régler automatiquement et de préférence de manière continue l'angle d'enroulement desdites bandes de papier défini entre la direction commune de dévidement desdites bandes de papier et l'axe longitudinal dudit mandrin, par mesure de l'angle d'enroulement actuel, par comparaison de la valeur ainsi mesurée de l'angle d'enroulement actuel avec une valeur de consigne dudit angle, et par commande d'un déplacement angulaire de ladite direction de dévidement des bandes de papier par rapport à l'axe longitudinal du mandrin de sorte que la valeur mesurée dudit angle d'enroulement est égale à la valeur de consigne prédéterminée.To this end, the subject of the invention is a method of manufacturing a tube, in particular cardboard, by helically winding a strip or several strips of paper with partial covering and transversely offset relative to each other by forming a sheet, around a fixed mandrel by rotationally driving the tube in formation, characterized in that it consists in automatically and preferably continuously adjusting the winding angle of said paper strips defined between the common direction of unwinding of said paper strips and the longitudinal axis of said mandrel, by measuring the current winding angle, by comparing the value thus measured of the current winding angle with a set value of said angle, and by controlling an angular displacement of said direction of unwinding of the paper strips with respect to the longitudinal axis of the mandrel so that the measured value of said winding angle is equal to the predetermined set value.

Selon une autre caractéristique du procédé de l'invention, on déplace d'une manière rectiligne et réversible la nappe de bandes de papier précitée selon une direction perpendiculaire à la direction de dévidement précitée. Ainsi, la bande de papier d'une extrémité de la nappe est enroulée sur le mandrin fixe précité le plus près possible du porte-mandrin, quel que soit l'angle d'enroulement choisi de façon à ne pas perdre d'espace d'enroulement entre le dispositif d'entrai- nement en rotation du tube en formation et le porte-mandrin.According to another characteristic of the process of the invention, the above-mentioned sheet of paper web is moved in a rectilinear and reversible manner in a direction perpendicular to the above-mentioned unwinding direction. Thus, the paper strip at one end of the ply is wound on the above-mentioned fixed mandrel as close as possible to the mandrel holder, whatever the winding angle chosen so as not to lose winding space between the device for rotating the tube in formation and the mandrel holder.

L'invention a également pour objet une machine pour la mise en oeuvre du procédé décrit précédemment et comprenant un châssis fixe supportant un mandrin fixe d'enroulement et un système d'entraînement en rotation du tube en formation, et un châssis mobile supportant notamment un dispositif de dévidement d'une ou plusieurs bandes de papier, un dispositif d'encollage desdites bandes-de papier et un système de positionnement et guidage de ces bandes de papier pour former la nappe précitée, ledit châssis mobile étant relié audit châssis fixe par un dispositif d'attelage articulé en rotation autour d'un axe de pivot dont l'axe fictif coupe perpendiculairement l'axe longitudinal dudit mandrin, et étant monté roulant sur des voies de roulement concentriques audit axe de pivot, caractérisé en ce qu'il comprend des moyens de commande de déplacement angulaire du châssis mobile précité asservis à une valeur de consigne de l'angle d'enroulement de ladite nappe sur ledit mandrin fixe.The invention also relates to a machine for implementing the method described above and comprising a fixed frame supporting a fixed winding mandrel and a system for rotating the tube in formation, and a movable frame supporting in particular a device for unwinding one or more strips of paper, a device for gluing said strips of paper and a system for positioning and guiding these strips of paper to form the aforementioned sheet, said movable frame being connected to said fixed frame by a coupling device articulated in rotation about a pivot axis whose fictitious axis cuts perpendicularly the longitudinal axis of said mandrel, and being mounted rolling on tracks concentric with said pivot axis, characterized in that it comprises means for controlling the angular displacement of the aforementioned mobile chassis slaved to a set value of the winding angle of said sheet on said fixed mandrel.

Selon une autre caractéristique de l'invention, les moyens de commande précités comprennent un dispositif de mesure de l'angle d'enroulement actuel des bandes de papier sur le mandrin, ledit dispositif émettant un signal correspondant à l'angle d'enroulement actuel mesuré, un dispositif d'affichage de la valeur de consigne prédéterminée de l'angle d'enroulement, un dispositif de comparaison dudit signal à ladite valeur de consigne et un dispositif de commande asservi audit dispositif de comparaison commandant le fonctionnement d'un moteur d'entraînement réversible d'au moins une roue motrice dudit châssis mobile.According to another characteristic of the invention, the aforementioned control means comprise a device for measuring the current winding angle of the strips of paper on the mandrel, said device emitting a signal corresponding to the current winding angle measured , a device for displaying the predetermined set value of the winding angle, a device for comparing said signal to said set value and a control device controlled by said comparison device controlling the operation of a motor reversible drive at least one drive wheel of said movable chassis.

Avantageusement, l'axe du mandrin fixe est sensiblement horizontal et l'axe de pivot précité de l'attelage du châssis mobile est sensiblement vertical.Advantageously, the axis of the fixed mandrel is substantially horizontal and the aforementioned pivot axis of the coupling of the mobile chassis is substantially vertical.

En outre, le dispositif de mesure de l'angle d'enroulement actuel précité et le dispositif d'affichage précité de la valeur de consigne sont des dispositifs à potentiomètre, avantageusement la valeur de consigne est exprimé en sinus d'angle d'enroulement.In addition, the aforementioned current winding angle measuring device and the aforementioned setpoint display device are potentiometer devices, advantageously the setpoint is expressed in sine of the winding angle.

Selon encore une autre caractéristique de l'invention, le châssis mobile précité est monté sur le dispositif d'attelage précité de manière déplaçable par translation rectiligne transversale sur ledit dispositif d'attelage. Avantageusement, cette fixation du châssis mobile sur son attelage est un système vis-écrou actionné par un moteur à fonctionnement synchronisé avec le moteur précité d'entraînement de la roue motrice dudit châssis mobile. Ainsi, il est possible de déplacer par translation rectiligne transversale la bande de papier par rapport à l'attelage et donc au mandrin fixe, tout en conservant constant l'angle d'enroulement dudit papier autour dudit mandrin.According to yet another characteristic of the invention, the aforementioned movable chassis is mounted on the aforementioned coupling device so as to be displaceable by rectilinear transverse translation on said coupling device. Advantageously, this fixing of the mobile chassis to its coupling is a screw-nut system actuated by a motor operating in synchronization with the aforementioned motor driving the driving wheel of said mobile chassis. Thus, it is possible to move by transverse rectilinear translation the strip of paper relative to the coupling and therefore to the fixed mandrel, while keeping constant the angle of winding of said paper around said mandrel.

Par ailleurs, selon une autre caractéristique de l'invention, l'entraînement en rotation du tube en formation est constitué par une courroie sans fin enroulée autour dudit tube en formation et entraînée par deux tambours à axe vertical perpendiculaire à l'axe horizontal longitudinal du mandrin, portés par une tourelle mobile éventuellement en translation parallèle à l'axe longitudinal du mandrin et/ou mobile en orientation angulaire par rapport audit axe longitudinal du mandrin. L'angle formé entre la perpendiculaire horizontale à l'axe longitudinal du mandrin et la ligne passant par les deux axes verticaux des tambours précités est réglé pour déterminer le degré d'ouverture ou de fermeture de la spire supérieure du tube.Furthermore, according to another characteristic of the invention, the rotational drive of the tube in formation is constituted by an endless belt wound around said tube in formation and driven by two drums with vertical axis perpendicular to the longitudinal horizontal axis of the mandrel, carried by a movable turret possibly in translation parallel to the longitudinal axis of the mandrel and / or movable in angular orientation relative to said axis longitudinal of the mandrel. The angle formed between the horizontal perpendicular to the longitudinal axis of the mandrel and the line passing through the two vertical axes of the aforementioned drums is adjusted to determine the degree of opening or closing of the upper turn of the tube.

L'invention a également pour objet un tube en carton fabriqué par le procédé défini ci-dessus.The invention also relates to a cardboard tube manufactured by the process defined above.

D'autres détails, avantages, caractéristiques de l'invention apparaîtront plus clairement au vu de la description explicative faite ci-dessous en référence aux dessins schématiques annexés illustrant un mode de réalisation de l'invention, donné uniquement à titre d'exemple, et dans lesquels :

  • La figure 1 est une vue schématique de dessus illustrant l'ensemble d'une machine de fabrication conforme à l'invention.
  • La figure 2 est une vue schématique de dessus à échelle agrandie de la partie II de la figure 1.
  • La figure 3 est une vue schématique de dessus à échelle agrandie de la partie III de la figure 1 ; et
  • La figure 4 est une vue schématique de dessus du châssis fixe illustrant le principe d'enroulement hélicoïdal conforme à l'invention.
Other details, advantages, characteristics of the invention will appear more clearly in the light of the explanatory description given below with reference to the appended schematic drawings illustrating an embodiment of the invention, given solely by way of example, and wherein :
  • Figure 1 is a schematic top view illustrating the assembly of a manufacturing machine according to the invention.
  • FIG. 2 is a schematic top view on an enlarged scale of part II of FIG. 1.
  • Figure 3 is a schematic top view on an enlarged scale of part III of Figure 1; and
  • Figure 4 is a schematic top view of the fixed frame illustrating the principle of helical winding according to the invention.

En se référant à la figure 1, la machine de fabrication de tube en carton comprend, de manière classique, un châssis fixe 1, et un châssis mobile 2 relié au châssis fixe 1 par un système d'attelage 3 tel qu'un timon d'attelage métallique, monté pivotant autour d'un axe de pivot 4 fixé sur le châssis fixe 1 et dont l'axe est sensiblement vertical et coupe perpendiculairement l'axe x longitudinal du mandrin 8 qui sera décrit ci-dessous.Referring to Figure 1, the cardboard tube manufacturing machine comprises, in a conventional manner, a fixed frame 1, and a movable frame 2 connected to the fixed frame 1 by a coupling system 3 such as a drawbar d '' metal hitch, mounted swivel around a pivot axis 4 fixed on the fixed frame 1 and whose axis is substantially vertical and perpendicularly cuts the longitudinal x axis of the mandrel 8 which will be described below.

En outre, le châssis mobile est monté roulant, au moyen de roues 7 représentées schématiquement, sur des voies de roulement ou rails 6 disposés concentriquement à l'axe de pivot 4.In addition, the mobile chassis is mounted rolling, by means of wheels 7 shown diagrammatically, on rolling tracks or rails 6 arranged concentrically with the pivot axis 4.

Le châssis mobile 2 de la machine de fabrication de l'invention supporte avantageusement un dispositif de dévidement d'une bande ou de plusieurs bandes de papier, un dispositif d'encollage d'une face de ces bandes de papier et un système de positionnement et de guidage de la bande de papier ou desdites bandes de papier pour former une nappe dans laquelle les bandes multiples se recouvrent partiellement et sont transversalement décalées les unes par rapport aux autres. Ces dispositifs de dévidement et d'encollage ainsi que le système de positionnement et de guidage précité sont très bien connus dans le domaine de la fabrication de tubes en carton et ne seront donc pas décrits en détail, en outre ils ne sont pas représentés en détail sur la figure 1 dans un but de clarté de celle-ci.The mobile chassis 2 of the manufacturing machine of the invention advantageously supports a device for unwinding a strip or several strips of paper, a device for gluing one side of these strips of paper and a positioning and guiding the paper strip or said paper strips to form a sheet in which the multiple strips partially overlap and are transversely offset with respect to each other. These unwinding and gluing devices as well as the aforementioned positioning and guidance system are very well known in the field of cardboard tube manufacturing and will therefore not be described in detail, moreover they are not shown in detail in Figure 1 for the sake of clarity thereof.

En outre, en se référant aux figures 1, 2 et 3 et conformément au mode de réalisation préféré de l'invention, le châssis mobile 2 comprend fixées sur son extrémité 2a non reliée au châssis fixe 1, deux roues motrices 9 supportant au moins une partie dudit châssis mobile par l'ensemble de montage de roues 10. L'entraînement de ces roues est commandé par un mo teur 11 notamment un moteur électrique entraînant un système 12 de transmission à roues dentées et chaînes, par exemple. Ainsi, le châssis 2 peut être déplacé autour de l'axe de pivot 4 sur les rails 6 par rotation des roues motrices 9, entraînées en mouvement par le moteur 11 à entraînement réversible.In addition, with reference to FIGS. 1, 2 and 3 and in accordance with the preferred embodiment of the invention, the mobile chassis 2 comprises fixed on its end 2a not connected to the fixed chassis 1, two driving wheels 9 supporting at least one part of said movable chassis by the wheel mounting assembly 10. The driving of these wheels is controlled by a motor 11 in particular an electric motor driving a transmission system 12 with toothed wheels and chains, for example. Thus, the chassis 2 can be moved around the pivot axis 4 on the rails 6 by rotation of the drive wheels 9, driven in movement by the motor 11 with reversible drive.

De plus, conformément à l'invention, le châssis mobile 2 est fixé sur son attelage 3 par un système de vis-écrou comprenant une vis sans fin 13 et des galets 14 de roulement entraînés par ladite vis, permettant une translation rectiligne et transversale du châssis mobile 2 par rapport à son attelage et donc par rapport à la direction de dévidement de la nappe de papier y. L'entraînement de la vis sans fin est réalisé par un moteur 15, par exemple.par un moto-réducteur et un système 16 de transmission à roues dentées-chaîne ou poulies-courroie.In addition, in accordance with the invention, the mobile chassis 2 is fixed to its coupling 3 by a screw-nut system comprising an endless screw 13 and rollers 14 for rolling driven by said screw, allowing rectilinear and transverse translation of the movable frame 2 relative to its coupling and therefore relative to the direction of unwinding of the paper web y. The drive of the worm is carried out by a motor 15, for example by a geared motor and a transmission system 16 with chain sprockets or belt pulleys.

Le fonctionnement et la commande de ces moteurs 11, 15 seront décrits ultérieurement.The operation and control of these motors 11, 15 will be described later.

En se référant aux figures 1, 4 le châssis fixe 1 conforme à l'invention comprend un porte-mandrin 17 fixé de préférence à une extrémité du châssis fixe 1, un mandrin 8 de préférence cylindrique fixé sur le porte-mandrin 17 et présentant un axe longitudinal x de préférence sensiblement horizontal. Le mandrin 8 s'étend de préférence sur une longueur assez importante de manière à servir de support-guide au tube 18 de carton en formation lors de son déplacement linéaire vers l'extrémité dudit mandrin 8.Referring to Figures 1, 4 the fixed frame 1 according to the invention comprises a mandrel holder 17 preferably fixed at one end of the fixed frame 1, a preferably cylindrical mandrel 8 fixed on the mandrel holder 17 and having a longitudinal axis x preferably substantially horizontal. The mandrel 8 preferably extends over a fairly large length so as to serve as a guide support for the tube 18 of cardboard being formed during its linear movement towards the end of said mandrel 8.

En outre, conformément à l'invention le tube en carton 8 en formation est entraîné en rotation par une courroie 19 sans fin enroulée en boucle simple autour du tube en formation, de préférence avec ses brins croisés, comme illustré à la figure 4. Cette courroie est entraînée par deux tambours 20 à axe vertical portés par une tourelle 21 mobile d'une part en translation parallèle à l'axe fixe du mandrin 8 sur par exemple des glissières 22 de déplacement latéral, et d'autre part mobile en position angulaire par rapport à l'axe longitudinal x du mandrin, de manière que la droite z passant par les axes verticaux des tambours 20 définissent un angle 6, dans le plan horizontal, avec une perpendiculaire à l'axe x longitudinal du mandrin 8. Avantageusement, l'orientation angulaire de la courroie 19 et sa position latérale par rapport au mandrin est réglée manuellement ou automatiquement par des manivelles 23, 24, par exemple.Furthermore, in accordance with the invention, the cardboard tube 8 in formation is rotated by an endless belt 19 wound in a simple loop around the tube in formation, preferably with its strands crossed, as illustrated in FIG. belt is driven by two drums 20 with a vertical axis carried by a turret 21 movable on the one hand in translation parallel to the fixed axis of the mandrel 8 on for example slides 22 for lateral displacement, and on the other hand movable in angular position by relative to the longitudinal axis x of the mandrel, so that the straight line z passing through the vertical axes of the drums 20 define an angle 6, in the horizontal plane, with a perpendicular to the longitudinal x axis of the mandrel 8. Advantageously, the angular orientation of the belt 19 and its lateral position relative to the mandrel is adjusted manually or automatically by cranks 23, 24, for example.

Il est bien entendu que ce système d'entraînement en rotation du tube 18 en formation est seulement donné comme un mode de réalisation préféré de l'invention, toutefois tout autre système permettant d'entraîner en rotation le tube 18 en formation et permettant de réaliser l'enroulement hélicoidal de la bande de papier 25 pourra être utilisé dans la machine de fabrication conforme à l'invention.It is understood that this system for rotating the tube 18 in formation is only given as a preferred embodiment of the invention, however any other system making it possible to rotate the tube 18 in formation and making it possible to produce the helical winding of the paper strip 25 can be used in the manufacturing machine according to the invention.

Selon l'invention, et en se référant à-la figure 1, les moyens de commande du déplacement angulaire du châssis mobile 2 par rapport au châssis fixe 1 comprennent un dispositif de mesure représenté schématiquement en 26 de l'angle d'enroulement du papier autour du mandrin 8 ou de préférence l'angle α défini entre la direction y de préférence sensiblement horizontale de dévidement du papier et la perpendiculaire dans le plan horizontal à l'axe X longitudinal du mandrin 8. Ce dispositif, qui est par exemple un dispositif à potentiomètre, émet un signal qui est appliqué à un dispositif de comparaison 27. Ce dispositif de comparaison 27 reçoit un signal d'un dispositif d'affichage 28 d'une valeur de consigne de l'angle α. Avantageusement, ce dispositif 28 d'affichage est un dispositif à potentiomètre étalonné en valeur de sinus α. Le dispositif de comparai son émet un signal vers un dispositif de commande 29 lorsque les deux signaux émis respectivement par le dispositif de mesure 26 et le dispositif d'affichage 28 ne sont pas identiques. Le dispositif 29 commande le fonctionnement du moteur 11 pour l'entraînement des roues motrices 9 et le déplacement angulaire du châssis 2 de telle manière que l'angle actuels mesuré par le'dispositif de mesure 26-correspond à la valeur de consigne de l'aigle α affichée par le dispositif d'affichage 28.According to the invention, and with reference to FIG. 1, the means for controlling the angular displacement of the movable frame 2 relative to the fixed frame 1 comprise a measuring device shown schematically at 26 of the angle of winding of the paper around the mandrel 8 or preferably the angle α defined between the direction y, preferably substantially horizontal, of unwinding the paper and the perpendicular in the horizontal plane to the longitudinal X axis of the mandrel 8. This device, which is for example a device with potentiometer, emits a signal which is applied to a comparison device 27. This device tif comparison 27 receives a signal from a display device 28 of a set value of the angle α. Advantageously, this display device 28 is a potentiometer device calibrated in value of sinus α. The sound comparison device emits a signal to a control device 29 when the two signals transmitted respectively by the measurement device 26 and the display device 28 are not identical. The device 29 controls the operation of the motor 11 for driving the drive wheels 9 and the angular displacement of the chassis 2 so that the current angle measured by the measurement device 26 corresponds to the set value of the eagle α displayed by the display device 28.

Ainsi, il ressort de cette description que par simple affichage du sinus de l'angle α désiré par le dispositif 28, automatiquement les moyens de commande 29 commanderont un déplacement du châssis mobile 2 de telle sorte que l'angle α actuel mesuré par le dispositif 26 devienne égal à la valeur d'affichage. Par conséquent, par simple affichage de l'angle α désiré le réglage de celui-ci est effectué automatiquement et de manière précise.Thus, it emerges from this description that by simply displaying the sine of the angle α desired by the device 28, the control means 29 will automatically control a movement of the movable frame 2 so that the current angle α measured by the device 26 becomes equal to the display value. Consequently, by simply displaying the desired angle α, the adjustment thereof is carried out automatically and precisely.

Par ailleurs, la fixation mobile en translation rectiligne transversale du châssis 2 sur son attelage 3 permet, par exemple lors d'un changement d'angle d'enroulement de disposer la bande de papier 25 for- - mant extrémité de la nappe, le plus près possible du support de mandrin 17 pour éviter toute perte de longueur de mandrin entre le support de mandrin 17 et la courroie d'entraînement 19. Toutefois, il est nécessaire lors de cette translation rectiligne transversale du châssis mobile 2 par rapport à son attelage 3 de déplacer angulairement ledit châssis 2 pour conserver l'angle d'enroulement. Pour cela, le moteur 15 d'entraînement de translation fonctionne de manière synchronisée, par exemple par variation de vitesse avec le moteur 11 de commande de roues motrices 9.Furthermore, the movable fixing in transverse rectilinear translation of the chassis 2 on its coupling 3 allows, for example when changing the winding angle, to arrange the strip of paper 25 forming the end of the sheet, the more as close as possible to the mandrel support 17 to avoid any loss of mandrel length between the mandrel support 17 and the drive belt 19. However, during this rectilinear transverse translation of the movable frame 2 relative to its coupling 3 to angularly move said frame 2 to keep the winding angle. For this, the translation drive motor 15 operates in synchronized manner, for example by speed variation with the drive wheel control motor 11.

Il est bien entendu possible de prévoir comme roues motrices une ou plusieurs roues 7 de support du châssis 2.It is of course possible to provide one or more wheels 7 for supporting the chassis 2 as driving wheels.

Ainsi, la présente invention procure un procédé permettant de régler de manière automatique, précise sans intervention manuelle sur la machine, l'angle d'enroulement des bandes de papier autour du mandrin fixe 8, et d'autre part, par réglage de l'angle 9, en d'autres termes de l'inclinaison des courroies par rapport à l'axe longitudinal x du mandrin le degré d'ouverture ou de fermeture de la dernière spire de papier enroulée sur le tube en formation.Thus, the present invention provides a method for adjusting automatically, precisely without manual intervention on the machine, the angle of winding of the paper strips around the fixed mandrel 8, and on the other hand, by adjusting the angle 9, in other words of the inclination of the belts relative to the longitudinal axis x of the mandrel the degree of opening or closing of the last turn of paper wound on the tube in formation.

La présente invention permet donc d'automatiser le fonctionnement d'une machine de fabrication de tube en carton, et principalement de permettre un réglage très précis et très rapide de l'angle d'enroulement du papier autour du mandrin, ainsi que de maintenir cet angle constant pendant tout le cycle de fabrication.The present invention therefore makes it possible to automate the operation of a machine for manufacturing cardboard tubes, and mainly to allow very precise and very rapid adjustment of the angle of winding of the paper around the mandrel, as well as to maintain this constant angle throughout the manufacturing cycle.

Il est bien entendu que le châssis mobile 1 peut également supporter tous les éléments, dispositifs pour la mise en forme de bandes de papier avant leur enroulement autour du mandrin fixe, et par ailleurs que ce châssis mobile peut seulement supporter le système de guidage et de positionnement des bandes de papier avant l'enroulement pour les positionner selon la direction de dévidement g.It is understood that the movable frame 1 can also support all the elements, devices for shaping strips of paper before they are wound around the fixed mandrel, and moreover that this movable frame can only support the guidance and positioning the paper strips before winding to position them in the direction of unwinding g.

Claims (12)

1. Procédé de fabrication de tube en carton par enroulement hélicoïdal d'une bande ou plusieurs bandes de papier à recouvrement partiel et transversalement décalées les unes par rapport aux autres en formant nappe, autour d'un mandrin fixe par entraînement en rotation du tube en formation, caractérisé en ce qu'il consiste à régler automatiquement et de préférence de manière continue l'angle d'enroulement desdites bandes de papier défini entre la direction commune de dévidement desdites bandes de papier et l'axe longitudinal dudit mandrin, par mesure de l'angle actuel d'enroulement, par comparaison de la valeur ainsi mesurée de l'angle d'enroulement actuel avec une valeur de consigne dudit angle, et par commande d'un déplacement angulaire de ladite direction commune de dévidement des bandes de papier par rapport à l'axe longitudinal du mandrin de sorte que la valeur mesurée dudit angle d'enroulement soit égale à la valeur de consigne prédéterminée.1. A method of manufacturing a cardboard tube by helically winding a strip or several strips of paper with partial covering and transversely offset with respect to each other by forming a sheet, around a fixed mandrel by driving the tube in rotation. formation, characterized in that it consists in automatically and preferably continuously adjusting the winding angle of said paper strips defined between the common direction of unwinding of said paper strips and the longitudinal axis of said mandrel, by measuring the current winding angle, by comparing the value thus measured of the current winding angle with a set value of said angle, and by controlling an angular displacement of said common direction of unwinding of the paper strips by relative to the longitudinal axis of the mandrel so that the measured value of said winding angle is equal to the predetermined set value. 2. Procédé selon la revendication 1, caractérisé en ce qu'il consiste à déplacer de manière rectiligne et réversible la nappe de bandes de papier précitée selon une direction perpendiculaire à la direction commune de dévidement précitée pour qu'une bande de papier d'extrémité de ladite nappe soit enroulée autour du mandrin précité le plus près possible du porte-mandrin.2. Method according to claim 1, characterized in that it consists in moving in a rectilinear and reversible manner the sheet of aforementioned strips of paper in a direction perpendicular to the aforementioned common direction of unwinding so that an end strip of paper said ply is wrapped around the aforementioned mandrel as close as possible to the mandrel holder. 3. Procédé selon la revendication 1 ou 2, caractérisé en ce que la mesure de l'angle d'enroulement actuel précité est réalisée par mesure de l'angle défini entre la direction commune de dévidement précitée des bandes de papier et une droite perpendiculaire à l'axe longitudinal du mandrin, ladite droite étant contenue dans le plan défini par ladite direction commune et ledit axe longitudinal de mandrin.3. Method according to claim 1 or 2, characterized in that the measurement of the aforementioned current winding angle is carried out by measuring the angle defined between the aforementioned common direction of unwinding of the paper strips and a straight line perpendicular to the longitudinal axis of the mandrel, said straight line being contained in the plane defined by said common direction and said longitudinal axis of mandrel. 4. Machine pour la mise en oeuvre du procédé selon l'une des revendications précédentes, comprenant un châssis fixe supportant un mandrin fixe d'enroulement, et un système d'entraînement en rotation du tube en formation, et un châssis mobile supportant notamment un dispositif de dévidement d'une ou plusieurs bandes de papier, un dispositif d'encollage desdites bandes de papier et un système de positionnement et guidage des bandes de papier pour former la nappe précitée, ledit châssis mobile étant relié audit châssis fixe par un dispositif d'attelage articulé en rotation autour d'un axe de pivot dont l'axe fictif coupe perpendiculairement l'axe longitudinal dudit mandrin, et étant monté roulant sur des voies de roulement concentriques audit axe de pivot, caractérisée en ce qu'elle comprend des moyens de commande de déplacement angulaire dudit châssis mobile (2) précité asservis à une valeur de consigne de l'angle d'enroulement de ladite nappe sur ledit mandrin fixe (8).4. Machine for implementing the method according to one of the preceding claims, comprising a fixed frame supporting a fixed winding mandrel, and a system for driving the tube in rotation in rotation, and a movable frame supporting in particular a device for unwinding one or more strips of paper, a device for gluing said strips of paper and a system for positioning and guiding the strips of paper to form the aforementioned sheet, said movable frame being connected to said fixed frame by a device hitch rotatably articulated about a pivot axis whose fictitious axis cuts perpendicularly the longitudinal axis of said mandrel, and being mounted rolling on tracks concentric with said pivot axis, characterized in that it comprises means angular displacement control of said aforementioned movable frame (2) slaved to a set value of the angle of winding of said ply on said fixed mandrel (8). 5. Machine selon la revendication 4, caractérisée en ce que les moyens de commande précités comprennent un dispositif de mesure (26) de l'angle d'enroulement actuel des bandes de papier (25) sur le mandrin (8) précité, émettant un signal, un dispositif d'affichage (28) de la valeur de consigne précitée de l'angle d'enroulement, un dispositif de comparaison (27) dudit signal à ladite valeur de consigne et un dispositif de commande (29) asservi audit dispositif de comparaison (27) pour la mise en fonctionnement d'un moteur d'entraînement (11) réversible d'au moins une roue motrice (9) dudit châssis mobile (2).5. Machine according to claim 4, characterized in that the aforementioned control means comprise a measuring device (26) of the current winding angle of the paper strips (25) on the aforementioned mandrel (8), emitting a signal, a device (28) for displaying the aforementioned set value of the winding angle, a device for comparing (27) said signal with said set value and a control device (29) controlled by said device comparison (27) for the operation of a reversible drive motor (11) of at least one drive wheel (9) of said movable frame (2). 6. Machine selon la revendication 4 ou 5, caractérisée en ce que l'axe longitudinal (x) du mandrin (8) précité, est sensiblement horizontal et l'axe du pivot (4) est sensiblement vertical.6. Machine according to claim 4 or 5, characterized in that the longitudinal axis (x) of the aforementioned mandrel (8) is substantially horizontal and the axis of the pivot (4) is substantially vertical. 7. Machine selon la revendication 5 ou 6, caractérisée en ce que le dispositif de mesure (26) de l'angle d'enroulement actuel précité et le dispositif d'affichage (28) précité de la valeur de consigne de l'angle d'enroulement sont des dispositifs à potentiomètre, avantageusement ledit dispositif d'affichage est étalonné en sinus d'angle d'enroulement, et de préférence en sinus de l'angle (eL) défini entre la direction commune (y) de dévidement précitée et la perpendiculaire horizontale à l'axe longitudinal (x) du mandrin précité, ledit dispositif de mesure (26) mesurant la valeur actuelle dudit angle (α).7. Machine according to claim 5 or 6, characterized in that the measuring device (26) of the aforementioned current winding angle and the aforementioned display device (28) of the set point of the angle d winding are potentiometer devices, advantageously said display device is calibrated in sine of winding angle, and preferably in sine of the angle (eL) defined between the aforementioned common direction (y) of unwinding and the perpendicular to the longitudinal axis (x) of the above-mentioned mandrel, said measuring device (26) measuring the current value of said angle (α). 8. Machine selon l'une des revendications 4 à 7, caractérisée en ce que le châssis mobile (2) précité est monté sur le dispositif d'attelage (3) précité de manière déplaçable par translation rectiligne transversale sur ledit dispositif d'attelage.8. Machine according to one of claims 4 to 7, characterized in that the aforementioned movable frame (2) is mounted on the aforementioned coupling device (3) so that it can be displaced by transverse rectilinear translation on said coupling device. 9. Machine selon la revendication 8, caractérisée en ce que la fixation du châssis mobile (2) précité sur son attelage (3) comprend un système vis-écrou actionné par un moteur (15) de fonctionnement synchronisé avec le moteur (11) précité d'entraînement de la roue motrice (9) dudit châssis mobile (2).9. Machine according to claim 8, characterized in that the fixing of the aforementioned movable frame (2) on its coupling (3) comprises a screw-nut system actuated by a motor (15) of operation synchronized with the aforementioned motor (11) driving the driving wheel (9) of said movable frame (2). 10. Machine selon l'une des revendications 3 à 7, caractérisée en ce que l'entraînement en rotation du tube en formation (18) est constitué par une courroie (19) sans fin enroulée autour dudit tube en formation (18) et entraînée par deux tambours (20) à axe vertical perpendiculaire à l'axe horizontal longitudinal (x) du mandrin (8), lesdits tambours (20) étant portés par une tourelle (21) mobile éventuellement en translation parallèle à l'axe (x) du mandrin et/ou mobile en orientation angulaire par rapport audix axe (x) longitudinal du mandrin.10. Machine according to one of claims 3 to 7, characterized in that the rotary drive of the forming tube (18) is constituted by a belt (19) endless wound around said forming tube (18) and driven by two drums (20) with vertical axis perpendicular to the longitudinal horizontal axis (x) of the mandrel (8), said drums (20) being carried by a turret (21) possibly mobile in translation parallel to the axis (x) of the mandrel and / or mobile in angular orientation relative to the said longitudinal axis (x) of the mandrel. 11. Machine selon la revendication 10, caractérisée en ce que l'orientation angulaire précitée de la tourelle (21) ou de la courroie (19) par rapport à l'axe (x) du mandrin est définie par l'angle (Q) compris entre la droite (z) passant par les axes verticaux des deux tambours (20) précités et la perpendiculaire horizontale à l'axe longitudinal (x) du mandrin, ledit angle étant réglé par des moyens de réglage (23) pour déterminer le degré d'ouverture ou de fermeture de la spire supérieure du tube en formation (18).11. Machine according to claim 10, characterized in that the aforementioned angular orientation of the turret (21) or of the belt (19) relative to the axis (x) of the mandrel is defined by the angle (Q) between the line (z) passing through the vertical axes of the two aforementioned drums (20) and the horizontal perpendicular to the longitudinal axis (x) of the mandrel, said angle being adjusted by adjustment means (23) to determine the degree opening or closing the upper turn of the forming tube (18). 12. Tube en carton, caractérisé en ce qu'il est obtenu par le procédé défini dans l'une des revendications 1 à 3.12. Cardboard tube, characterized in that it is obtained by the process defined in one of claims 1 to 3.
EP81402094A 1981-09-14 1981-12-30 Method and apparatus for manufacturing spirally wound paper tubes, and tubes produced by such a method Expired EP0074453B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81402094T ATE21498T1 (en) 1981-09-14 1981-12-30 METHOD AND MACHINE FOR MAKING SCREW-SEATED TUBES FROM CARTON, AND TUBES MANUFACTURED IN THIS WAY.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8117332 1981-09-14
FR8117332A FR2512733B1 (en) 1981-09-14 1981-09-14 METHOD AND MACHINE FOR MANUFACTURING CARDBOARD TUBE BY HELICOIDAL WINDING AND TUBES OBTAINED THEREBY

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EP0074453A1 true EP0074453A1 (en) 1983-03-23
EP0074453B1 EP0074453B1 (en) 1986-08-20

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EP81402094A Expired EP0074453B1 (en) 1981-09-14 1981-12-30 Method and apparatus for manufacturing spirally wound paper tubes, and tubes produced by such a method

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US (1) US4473368A (en)
EP (1) EP0074453B1 (en)
AT (1) ATE21498T1 (en)
CA (1) CA1183764A (en)
DE (2) DE3175187D1 (en)
ES (1) ES515704A0 (en)
FR (1) FR2512733B1 (en)

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GB901392A (en) * 1958-08-02 1962-07-18 Kuckens Alexander Apparatus for producing tubes with a helical welding seam
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DE1118128B (en) * 1958-07-08 1961-11-30 Kocks Gmbh Friedrich Pipe mill for the production of welded screw seam pipes with a strip edge sensor control to keep the welding gap equal
GB901392A (en) * 1958-08-02 1962-07-18 Kuckens Alexander Apparatus for producing tubes with a helical welding seam
DE1175636B (en) * 1959-07-28 1964-08-13 Salzgitter Stahlbau Gmbh Pipe mill for the manufacture of screw-seam pipes in which the width of the strip can be measured and its inlet angle can be controlled accordingly
US3229598A (en) * 1963-06-03 1966-01-18 Pennsylvania Papyrus Corp Method of manufacture of can bodies and apparatus therefor
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Also Published As

Publication number Publication date
DE74453T1 (en) 1983-08-18
DE3175187D1 (en) 1986-09-25
EP0074453B1 (en) 1986-08-20
FR2512733B1 (en) 1987-05-07
ES8400290A1 (en) 1983-10-16
US4473368A (en) 1984-09-25
ATE21498T1 (en) 1986-09-15
FR2512733A1 (en) 1983-03-18
CA1183764A (en) 1985-03-12
ES515704A0 (en) 1983-10-16

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