EP0086165A1 - Device for supporting, positioning and driving a tubular support during the winding of a web - Google Patents

Device for supporting, positioning and driving a tubular support during the winding of a web Download PDF

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Publication number
EP0086165A1
EP0086165A1 EP83420011A EP83420011A EP0086165A1 EP 0086165 A1 EP0086165 A1 EP 0086165A1 EP 83420011 A EP83420011 A EP 83420011A EP 83420011 A EP83420011 A EP 83420011A EP 0086165 A1 EP0086165 A1 EP 0086165A1
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EP
European Patent Office
Prior art keywords
shell
cradle
self
locking
pivoting
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
EP83420011A
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German (de)
French (fr)
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EP0086165B1 (en
Inventor
Jean-Louis Chognard
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Individual
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Individual
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Priority to AT83420011T priority Critical patent/ATE17110T1/en
Publication of EP0086165A1 publication Critical patent/EP0086165A1/en
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Publication of EP0086165B1 publication Critical patent/EP0086165B1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H18/00—Winding webs
    • B65H18/02—Supporting web roll
    • B65H18/04—Interior-supporting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/41—Winding, unwinding
    • B65H2301/413—Supporting web roll
    • B65H2301/4136—Mounting arrangements not otherwise provided for
    • B65H2301/41366—Mounting arrangements not otherwise provided for arrangements for mounting and supporting and -preferably- driving the (un)winding shaft
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/41—Winding, unwinding
    • B65H2301/413—Supporting web roll
    • B65H2301/4136—Mounting arrangements not otherwise provided for
    • B65H2301/41366—Mounting arrangements not otherwise provided for arrangements for mounting and supporting and -preferably- driving the (un)winding shaft
    • B65H2301/413665—Mounting arrangements not otherwise provided for arrangements for mounting and supporting and -preferably- driving the (un)winding shaft articulated bearing

Definitions

  • the present invention relates to an improved device for holding, positioning and driving a tubular support around which must be wound a continuous material, in sheet form, delivered at a constant speed or not.
  • the correct winding of the fabrics around a tubular support, support which will be designated in the following description by the expression "tube” is generally carried out either by driving the support tube by tangential contact with at least one driving cylinder or more generally, by placing the tube on which the material is to be wound on a mandrel actuated directly in rotation (axial drive of said support), this mandrel being ; generally of square section and being held, at each of its ends, by clamping jaws communicating the rotational movement.
  • the driving speed of the support mandrel is modified as the diameter of the winding increases, so as to have a constant linear speed and an equally constant tension.
  • the invention therefore relates to an improvement made to the jaws used for holding, positioning and driving a tubular support on which a sheet material is wound, the jaw according to the invention being characterized by the fact that it is made in two parts articulated with respect to each other, defining between them a cage intended to receive the end of the support tube, one of these elementary parts being mounted on the control shaft d drive in rotation and the other elementary part being pivotally mounted on the aforementioned part and comprising means ensuring the tightening and self-locking of the support tube during the winding of material.
  • the jaw according to the invention designated by the general reference (1), and which is capable of being used on any material making it possible to wind a sheet material on a tubular support , consists essentially of two elementary parts (2-3) articulated with respect to each other. These two elementary parts (2-3) define between them a cage (4) intended to receive the end of the support tube (5) around which the material is to be wound.
  • the part (2) of the jaw will be designated by the expression “lower cradle” while the articulated part (3) will be designated by the expression "clamping shell”.
  • the lower cradle (2) is mounted at the end of the drive shaft (6), shown only in Figure 4, to ensure the rotation of the jaw.
  • This axis (6) is supported by a bearing (7), a particular embodiment of which will be seen in more detail in the following description, and is rotated by any suitable means, for example by a motor (not shown).
  • the shell (3) is pivotally mounted on the lower cradle (2) and comprises means ensuring the tightening and the self-locking of the end of the support tube during winding.
  • the retention and articulation of the shell (3) relative to the lower cradle (2) is obtained by means of a housing (8) mounted on the cradle (2) via 'a pivot axis (9).
  • This case has an open face (10) and a window (11) on its rear face, allowing it to pivot relative to the fixed lower cradle (2).
  • the mounting of the upper shell (3) inside this box (8) is carried out by means of a connecting rod (12) also pivotally mounted around a fixed axis (13) also integral with the lower cradle
  • the cage (4) intended to receive the ends of the tube (5) consists of two circular sectors (or other shape) complementary (14) and (15), one (14 ) formed on the cradle (2), the other (15) on the shell (3). From D reference, the internal faces of these spans (14) and (15) are coated with a layer of protective felt material for example.
  • the shell (3) comprises means ensuring the tightening and the self-locking of the support tube during the winding of the material.
  • These clamping and self-locking means are constituted, in this embodiment, by the link (16), the ends of which are mounted, by means of pins (17-18), respectively to the housing (8) and with the link (16).
  • the self-locking is ensured by means of rollers (19-20) mounted eccentrically on the shell (3) which, in the closed position, come to bear on the periphery of the support tube (5).
  • a system for adjusting the clamping force constituted for example by a rod threaded (21) mounted on the shell (3), rod which cooperates with a nut (22) integral with the rod (12), can be envisaged in order to better define the respective positions between the cradle (2) and said shell (3 ).
  • the jaw according to the invention is mounted on the drive shaft (6) by means of a bearing (7) of particular shape which, automatically, allows to position said jaw so that the lower cradle (2) is necessarily in the low position when the '' we want to set up (or remove) the support tube.
  • the bearing (7) has an inclined front face whose base (23) serves as a fulcrum for the cradle (2), as well as the housing (8) when it is in the closed position.
  • the cutaway (24) of this bearing makes it possible to define the position of the housing (8) in the open position and consequently, to limit the pivoting of the shell (3) to the desired value allowing the positioning and removal of the tube (5).
  • the opening and closing can only be carried out with the cradle (2) in the low position.
  • Such a bearing shape also makes it possible to ensure very high operating safety of the assembly taking into account the fact that if, by mistake, the assembly is caused to rotate while the jaw is open, the cutaway will have tendency to automatically cause the shell to close.
  • FIGS. 5, 6 and 7 illustrate a variant in accordance with the invention making it possible to use a single device for tubes of variable section, for example of circular, hexagonal, square shape (references 5a, 5b, 5c to Figure 5) and this, at the cost of a simple and quick adaptation to achieve.
  • the handling of the assembly is facilitated by providing a peripheral flywheel (31) at the rear of the housing (8).
  • the immobilization of the tube, and in particular in the case of cardboard tubes can be improved by providing on the internal surface of the lower cradle (2) with small pins which penetrate inside said tube without, however, deteriorate it.
  • the facing faces (32-33) of the cradle (2) and the shell (3) may not be smooth and have complementary raised surfaces which interpenetrate (see FIG. 6) and avoid any relative displacement of the two elements with respect to each other.
  • such a device not only avoids the use of an internal support mandrel, but also ensures very high operating safety while being particularly simple and effective to use.

Landscapes

  • Replacement Of Web Rolls (AREA)
  • Winding Of Webs (AREA)
  • Unwinding Webs (AREA)
  • Advancing Webs (AREA)

Abstract

1. Device for holding, positioning and moving a tubular support over which is to be rolled a continuous material in sheet form, wherein said device is in the form of a jaw constituted in two parts (2, 3), mounted for pivoting one with respect to the other, and defining between them a cage (4) designed to receive the end of the support tube (5), one of said elementary parts (2) being mounted on the shaft (6) controlling the rotation movement, and the other elementary part (3) being mounted for pivoting on the afore-said part and comprising means to ensure the gripping and self-locking of the support tube (5) when the material is being rolled, the part (2) mounted to the driving shaft (6) being in the form of a lower cradle and the pivoting part (3) being in the form of a upper shell, the said shell (3) being held and pivoted with respect to the cradle (2) by way of a casing (8) mounted on said cradle (2) via a pivoting axle (9), characterized by the fact that the shell (3) is mounted inside the casing (8) by way of a small rod (12) which is also mounted for pivoting about a fixed axle (13), integral with the lower cradle (2), the gripping and self-locking means associated to the said shell (3) being constituted by a link-rod (16) whose ends are mounted for pivoting about axles (17, 18) on the casing (8) and the small (12), respectively, and the self-locking being ensured by way of runners (19, 20) mounted eccentrically on the shell (3).

Description

La présente invention concerne un dispositif perfectionné pour le maintien, le positionnement et l'entraînement d'un support tubulaire autour duquel doit être enroulé un matériau continu, en forme de feuille, débité à vitesse constante ou non.The present invention relates to an improved device for holding, positioning and driving a tubular support around which must be wound a continuous material, in sheet form, delivered at a constant speed or not.

Elle a trait plus particulièrement à un dispositif enrouleur perfectionné de matière textile, telle que par exemple tissus, tricots... Dans la suite de la description, l'invention sera décrite pour cette application particulière, mais il est évident que cela n'est pas limitatif et qu'elle peut également convenir pour enrouler toute forme de matériau se présentant sous forme de bandes continues, et qui doivent être enroulées sur un support tubulaire lors des différents stades de leur fabrication, par exemple à la sortie du dispositif sur lequel ils sont produits ou lors des traitements qu'ils subissent.It relates more particularly to an improved winding device of textile material, such as for example fabrics, knits ... In the following description, the invention will be described for this particular application, but it is obvious that this is not not limiting and that it may also be suitable for winding any form of material in the form of continuous strips, which must be wound on a tubular support during the various stages of their manufacture, for example at the outlet of the device on which they are produced or during the treatments they undergo.

L'enroulement correct des tissus autour d'un support tubulaire, support qui sera désigné dans la suite de la description par l'expression "tube" est en général réalisé soit en entraînant le tube support par contact tangentiel avec au moins un cylindre moteur soit, plus généralement, en disposant le tube sur lequel la matière doit être enroulée sur un mandrin actionné directement en rotation (entraînement axial dudit support), ce mandrin étant-;en général de section carrée et étant maintenu, à chacune de ses extrémités, par des mors de serrage communiquant le mouvement de rotation. Avantageusement, la vitesse d'entraînement du mandrin support est modifiée au fur et à mesure de l'augmentation du diamètre de l'enroulement, de manière à avoir une vitesse linéaire constante et une tension également constante.The correct winding of the fabrics around a tubular support, support which will be designated in the following description by the expression "tube" is generally carried out either by driving the support tube by tangential contact with at least one driving cylinder or more generally, by placing the tube on which the material is to be wound on a mandrel actuated directly in rotation (axial drive of said support), this mandrel being ; generally of square section and being held, at each of its ends, by clamping jaws communicating the rotational movement. Advantageously, the driving speed of the support mandrel is modified as the diameter of the winding increases, so as to have a constant linear speed and an equally constant tension.

L'un des problèmes qui se pose pour la mise en oeuvre d'une telle technique, est celui de la mise en place du mandrin support à l'intérieur du tube ainsi que son enlèvement à la fin de l'opération d'enroulement. De plus, la transmission du mouvement de rotation entre le mors moteur et le mandrin support provoque en général une usure rapide de ces éléments, compte-tenu du fait que cette transmission est obtenue par contact avec les extrémités du mandrin qui sont de section carrée.One of the problems which arises for the implementation of such a technique is that of the implementation place the support mandrel inside the tube as well as its removal at the end of the winding operation. In addition, the transmission of the rotational movement between the motor jaw and the support mandrel generally causes rapid wear of these elements, taking into account the fact that this transmission is obtained by contact with the ends of the mandrel which are of square section.

Pour faciliter la mise en place et l'enlèvement de l'enroulement, il a été envisagé d'utiliser des mors réalisés en deux parties, pivotantes l'une par rapport à l'autre, de telle sorte que les extrémités du mandrin puissent être complètement dégagées lors de ces opérations. Ces dispositifs n'éliminent cependant pas les inconvénients qui découlent de l'utilisation d'un mandrin support.To facilitate the installation and removal of the winding, it has been envisaged to use jaws made in two parts, pivoting with respect to each other, so that the ends of the mandrel can be completely cleared during these operations. These devices do not however eliminate the drawbacks which arise from the use of a support mandrel.

Or on a trouvé, et c'est ce qui fait l'objet de la présente invention, un perfectionnement aux mors servant au maintien, au positionnement et à l'entraînement des supports tubulaires destinés à recevoir une matière en feuille, tissus notamment, qui surmonte les inconvénients des solutions antérieures.However, we have found, and this is what is the subject of the present invention, an improvement to the jaws used for holding, positioning and driving the tubular supports intended to receive a sheet material, in particular fabrics, which overcomes the disadvantages of previous solutions.

D'une manière générale, l'invention concerne donc un perfectionnement apporté aux mors utilisés pour le maintien, le positionnement et l'entraînement d'un support tubulaire sur lequel une matière en feuille est enroulée, le mors selon l'invention se caractérisant par le fait qu'il est réalisé en deux parties articulées l'une par rapport à l'autre, définissant entre elles une cage destinée à recevoir l'extrémité du tube support, une de ces parties élémentaires étant montée sur l'arbre de commande d'entraînement en rotation et l'autre partie élémentaire étant montée pivotante sur la partie précitée et comportant des moyens assurant le serrage et l'auto- blocage du tube support lors de l'enroulement de matière.In general, the invention therefore relates to an improvement made to the jaws used for holding, positioning and driving a tubular support on which a sheet material is wound, the jaw according to the invention being characterized by the fact that it is made in two parts articulated with respect to each other, defining between them a cage intended to receive the end of the support tube, one of these elementary parts being mounted on the control shaft d drive in rotation and the other elementary part being pivotally mounted on the aforementioned part and comprising means ensuring the tightening and self-locking of the support tube during the winding of material.

L'invention et les avantages qu'elle apporte seront cependant mieux compris grâce aux exemples de réalisation donnés ci-après à titre indicatif mais non limitatif et qui sont illustrés par les schémas annexés dans lesquels:

  • - les figures 1 et 2 sont respectivement des vues de face et en coupe selon l'axe X d'un mors réalisé conformément à l'invention en position fermée,
  • - la figure 3 est une vue en coupe montrant un tel mors en position ouverte lors de l'enlèvement ou de la mise en place des tubes support,
  • - la figure 4 est une vue schématique en coupe montrant un mode particulier de montage d'un mors conforme à l'invention sur le bâti d'une machine d'enroulement,
  • - les figures 5,6 et 7 sont des vues similaires aux figures 1, 2 et 3 montrant une variante d'un tel dispositif adaptable pour des supports tubulaires de section variable, par exemple circulaire, hexagonale, carrée.
The invention and the advantages which it brings will however be better understood thanks to the exemplary embodiments given below for information but not limitation and which are illustrated by the attached diagrams in which:
  • FIGS. 1 and 2 are respectively front and sectional views along the axis X of a jaw produced in accordance with the invention in the closed position,
  • FIG. 3 is a sectional view showing such a jaw in the open position when the support tubes are removed or put in place,
  • FIG. 4 is a schematic sectional view showing a particular method of mounting a jaw according to the invention on the frame of a winding machine,
  • - Figures 5,6 and 7 are views similar to Figures 1, 2 and 3 showing a variant of such a device adaptable for tubular supports of variable section, for example circular, hexagonal, square.

Dans la suite de la description, les mêmes références seront utilisées pour désigner les mêmes éléments des deux modes de réalisation exemplifiés.In the following description, the same references will be used to designate the same elements of the two exemplified embodiments.

Si l'on se reporte aux figures annexées, le mors conforme à l'invention, désigné par la référence générale (1), et qui est susceptible d'être utilisé sur tout matériel permettant d'enrouler une matière en feuille sur un support tubulaire, se compose essentiellement de deux parties élémentaires (2-3) articulées l'une par rapport à l'autre. Ces deux parties élémentaires (2-3)définissent entre elles une cage (4) destinée à recevoir l'extrémité du tube support (5) autour duquel la matière doit être enroulée. Dans la suite de la description, la partie (2) du mors sera désignée par l'expression "berceau inférieur" alors que la partie articulée (3) sera désignée par l'expression "coquille de serrage".If reference is made to the appended figures, the jaw according to the invention, designated by the general reference (1), and which is capable of being used on any material making it possible to wind a sheet material on a tubular support , consists essentially of two elementary parts (2-3) articulated with respect to each other. These two elementary parts (2-3) define between them a cage (4) intended to receive the end of the support tube (5) around which the material is to be wound. In the following description, the part (2) of the jaw will be designated by the expression "lower cradle" while the articulated part (3) will be designated by the expression "clamping shell".

Dans ce mode de réalisation, le berceau inférieur (2) est monté à l'extrémité de l'axe d'entraînement (6), représenté uniquement à la figure 4, permettant d'assurer la rotation du mors. Cet axe (6) est supporté par un palier (7), dont une forme de réalisation particulière sera vue plus en détail dans la suite de la description, et est entraîné en rotation par tout moyen approprié, par exemple par un moteur (non représenté).In this embodiment, the lower cradle (2) is mounted at the end of the drive shaft (6), shown only in Figure 4, to ensure the rotation of the jaw. This axis (6) is supported by a bearing (7), a particular embodiment of which will be seen in more detail in the following description, and is rotated by any suitable means, for example by a motor (not shown).

Conformément à l'invention, la coquille (3) est montée pivotante sur le berceau inférieur (2) et comporte des moyens assurant le serrage et l'auto-blocage de l'extrémité du tube support lors de l'enroulement. Dans le mode de réalisation illustré, le maintien et l'articulation de la coquille (3) par rapport au berceau inférieur (2) est obtenu au moyen d'un boitier (8) monté sur le berceau (2) par l'intermédiaire d'un axe de pivotement (9). Ce boitier présente une face ouverte (10) ainsi qu'une fenêtre (11), sur sa face arrière, permettant d'assurer son pivotement par rapport au berceau inférieur fixe (2). Le montage de la coquille supérieure (3) à l'intérieur de ce boitier (8) est réalisé par l'intermédiaire d'une biellette (12) montée également pivotante autour d'un axe fixe (13) solidaire également du berceau inférieurAccording to the invention, the shell (3) is pivotally mounted on the lower cradle (2) and comprises means ensuring the tightening and the self-locking of the end of the support tube during winding. In the illustrated embodiment, the retention and articulation of the shell (3) relative to the lower cradle (2) is obtained by means of a housing (8) mounted on the cradle (2) via 'a pivot axis (9). This case has an open face (10) and a window (11) on its rear face, allowing it to pivot relative to the fixed lower cradle (2). The mounting of the upper shell (3) inside this box (8) is carried out by means of a connecting rod (12) also pivotally mounted around a fixed axis (13) also integral with the lower cradle

Ainsi que cela ressort clairement de la figure 1, la cage (4) destinée à recevoir les extrémités du tube (5) est constituée de deux secteurs circulaires(ou autre forme)complémentaires (14) et (15), l'un (14) formé sur le berceau (2), l'autre (15) sur la coquille (3). De Dréference, les faces internes de ces portées (14) et (15) sont revêtues d'une couche de matière protectrice feutre par exemple.As is clear from FIG. 1, the cage (4) intended to receive the ends of the tube (5) consists of two circular sectors (or other shape) complementary (14) and (15), one (14 ) formed on the cradle (2), the other (15) on the shell (3). From D reference, the internal faces of these spans (14) and (15) are coated with a layer of protective felt material for example.

Comme dit précédemment, la coquille (3) comporte des moyens assurant le serrage et l'auto-blocage du tube support lors de l'enroülement de la matière. Ces moyens de serrage et-d'auto-blocage sont constitués, dans cet exemple de réalisation, par la biellette (16) dont les extrémités sont montées, au moyen d'axes (17-18), respectivement au boîtier (8) et à la biellette (16). L'auto-blocage est assuré au moyen de galets (19-20) montés de manière excentrique sur la coquille (3) qui, en position fermée, viennent prendre appui à la périphérie du tube support (5). Par ailleurs, un système de réglage de la force de serrage, constitué par exemple par une tige filetée (21) montée sur la coquille (3), tige qui coopère avec un écrou (22) solidaire de la biellette (12), peut être envisagé afin de mieux définir les positions respectives entre le berceau (2) et ladite coquille (3).As said previously, the shell (3) comprises means ensuring the tightening and the self-locking of the support tube during the winding of the material. These clamping and self-locking means are constituted, in this embodiment, by the link (16), the ends of which are mounted, by means of pins (17-18), respectively to the housing (8) and with the link (16). The self-locking is ensured by means of rollers (19-20) mounted eccentrically on the shell (3) which, in the closed position, come to bear on the periphery of the support tube (5). Furthermore, a system for adjusting the clamping force, constituted for example by a rod threaded (21) mounted on the shell (3), rod which cooperates with a nut (22) integral with the rod (12), can be envisaged in order to better define the respective positions between the cradle (2) and said shell (3 ).

La mise en oeuvre d'un tel dispositif est la suivante. Lors de la mise en place (ou de l'enlèvement) du tube support, le mors est en position ouverte tel que représenté à la figure 3. Pour obtenir cette position, il suffit d'exercer une force F2 sur le boîtier (8), ce qui provoque sa rotation et, par suite le pivotement de la coquille (3) en arrière. Ce pivotement permet de dégager complètement le dessus du berceau (2) et par suite, le tube support peut être mis en place (ou enlevé) de manière aisée. En fonctionnement normal, c'est-à-dire lorsque la matière est enroulée, la coquille (3) est ramenée en postion fermée tel que cela est représenté aux figures 1 et 2..Pour cela, on exerce une force Fl à la partie supérieure du boitier (8), ce qui provoque son pivotement autour de l'axe (9). Lorsque la biellette (16) se trouve dans le prolongement de l'axe A.(voir figure 2), les deux portées (14-15) enserrent l'extrémité du tube (5) et assurent son pincement. Pour assurer le blocage définitif, on exerce une pression supplémentaire permettant de déplacer la biellette (12) de telle sorte que son axe (18) soit situé dans le plan B (voir figure 2) en avant du plan A. Par suite, les forces qui s'exercent lors de l'enroulement et qui auraient tendance à provoquer l'ouverture du dispositif, auront une action telle qu'elles tendront au contraire à assurer un pincement plus important de l'extrémité du tube (5). Lors de la fermeture, bien entendu, les deux excentriques (19-20) viennent en appui à la périphérie du tube (5). Lorsque l'entraînement est réalisé, ces deux excentriques ont tendance à venir plaquer contre la périphérie du tube et assurent donc son blocage de manière efficace.The implementation of such a device is as follows. During the fitting (or removal) of the support tube, the jaw is in the open position as shown in FIG. 3. To obtain this position, it suffices to exert a force F 2 on the housing (8 ), which causes its rotation and, consequently, the pivoting of the shell (3) backwards. This pivoting makes it possible to completely release the top of the cradle (2) and as a result, the support tube can be put in place (or removed) easily. In normal operation, that is to say when the material is wound, the shell (3) is brought back into the closed position as shown in FIGS. 1 and 2. For this, a force F l is exerted at the upper part of the housing (8), which causes it to pivot about the axis (9). When the link (16) is in the extension of the axis A. (see Figure 2), the two bearing surfaces (14-15) enclose the end of the tube (5) and ensure its nipping. To ensure final blocking, an additional pressure is applied to move the link (12) so that its axis (18) is located in the plane B (see Figure 2) in front of the plane A. As a result, the forces which are exerted during the winding and which would tend to cause the opening of the device, will have an action such that they will on the contrary tend to ensure a greater pinching of the end of the tube (5). When closing, of course, the two eccentrics (19-20) come to bear on the periphery of the tube (5). When the drive is performed, these two eccentrics tend to press against the periphery of the tube and therefore ensure its blocking effectively.

Par ailleurs, dans le mode de réalisation illustré à la figure 4, le mors conforme à l'invention est-monté sur l'axe d'entraînement (6) au moyen d'un palier (7) de forme particulière qui, de manière automatique, permet de positionner ledit mors de telle sorte que le berceau inférieur (2) soit obligatoirement en position basse lorsque l'on désire mettre en place (ou enlever) le tube support. Pour cela, le palier (7) présente une face avant inclinée dont la base (23) sert de point d'appui au berceau (2), ainsi qu'au boitier (8) lorsqu'il est en position fermée. Le pan coupé (24) de ce palier permet de définir la position du boitier (8) en position ouverte et par suite, de limiter le pivotement de la coquille (3) à la valeur souhaitée permettant la mise en place et l'enlèvement du tube (5). Compte-tenu de cette forme de réalisation particulière, l'ouverture et la fermeture ne peut être réalisée qu'avec le berceau (2) en position basse. Une telle forme de palier permet également d'assurer une très grnade sécurité de fonctionnement de l'ensemble compte-tenu du fait que si, par mégarde, on provoque la rotation de l'ensemble alors que le mors est ouvert, le pan coupé aura tendance à provoquer automatiquement la fermeture de la coquille.Furthermore, in the embodiment illustrated in Figure 4, the jaw according to the invention is mounted on the drive shaft (6) by means of a bearing (7) of particular shape which, automatically, allows to position said jaw so that the lower cradle (2) is necessarily in the low position when the '' we want to set up (or remove) the support tube. For this, the bearing (7) has an inclined front face whose base (23) serves as a fulcrum for the cradle (2), as well as the housing (8) when it is in the closed position. The cutaway (24) of this bearing makes it possible to define the position of the housing (8) in the open position and consequently, to limit the pivoting of the shell (3) to the desired value allowing the positioning and removal of the tube (5). Given this particular embodiment, the opening and closing can only be carried out with the cradle (2) in the low position. Such a bearing shape also makes it possible to ensure very high operating safety of the assembly taking into account the fact that if, by mistake, the assembly is caused to rotate while the jaw is open, the cutaway will have tendency to automatically cause the shell to close.

L'exemple qui précède montre bien les avantages apportés par la présente invention, notamment le fait que grâce à un tel type de mors, il est possible d'entraîner, sans mandrin support, tout tube pouvant servir à l'enroulement de matière en feuille. Bien entendu, ces tubes pourront se présenter sous différentes formes, être pleins ou creux. Ainsi, les figures 5, 6 et 7 illustrent une variante conforme à l'invention permettant d'utili&er un seul et même dispositif pour des tubes de section variable, par exemple de forme circulaire, hexagonale, carrée (références 5a, 5b, 5c à la figure 5) et ce, au prix d'une adaptation simple et rapide à réaliser. Cela est obtenu en réalisant le berceau inférieur (2) non pas en une pièce unique comme dans l'exemple illustré aux figures 1, 2 et 3, mais en prévoyant un élément rapporté (2a) formant le berceau proprement dit et dont la forme est adaptée en fonction de la forme du tube à serrer. Cette partie (2a) est fixée par un système à boulon et goupille (30) conventionnels.En fonction du tube à serrer la partie articulée (3) (coquille de serrage) aura une forme correspondante.The above example clearly shows the advantages provided by the present invention, in particular the fact that thanks to such a type of jaw, it is possible to drive, without support mandrel, any tube which can be used for winding sheet material. . Of course, these tubes can be in different forms, be full or hollow. Thus, FIGS. 5, 6 and 7 illustrate a variant in accordance with the invention making it possible to use a single device for tubes of variable section, for example of circular, hexagonal, square shape (references 5a, 5b, 5c to Figure 5) and this, at the cost of a simple and quick adaptation to achieve. This is achieved by making the lower cradle (2) not in a single piece as in the example illustrated in Figures 1, 2 and 3, but by providing an insert (2a) forming the cradle itself and whose shape is adapted according to the shape of the tube to be clamped. This part (2a) is fixed by a conventional bolt and pin system (30). Depending on the tube to be tightened, the articulated part (3) (clamping shell) will have a corresponding shape.

Par ailleurs, dans ce mode de réalisation, la manipulation de l'ensemble est facilitée en prévoyant un volant périphérique (31) à l'arrière du boitier (8). De plus, l'immobilisation du tube et-notamment lorsqu'il s'agit de tubes en carton, peut être améliorée en prévoyant sur la surface interne du berceau inférieur (2) de petits picots qui pénètrent à l'intérieur dudit tube sans cependant le détériorer. Enfin, les faces en regard (32-33) du berceau (2) et de la coquille (3) peuvent ne pas être lisses et présenter des surfaces en relief complémentaires qui s'interpénètrent (voir figure 6) et évitent tout déplacement relatif des deux éléments l'un par rapport à l'autre.Furthermore, in this embodiment, the handling of the assembly is facilitated by providing a peripheral flywheel (31) at the rear of the housing (8). In addition, the immobilization of the tube, and in particular in the case of cardboard tubes, can be improved by providing on the internal surface of the lower cradle (2) with small pins which penetrate inside said tube without, however, deteriorate it. Finally, the facing faces (32-33) of the cradle (2) and the shell (3) may not be smooth and have complementary raised surfaces which interpenetrate (see FIG. 6) and avoid any relative displacement of the two elements with respect to each other.

Bien entendu, l'invention n'est pas limitée aux exemples de réalisation décrits précédemment mais elle en couvre toutes les variantes réalisées dans le même esprit. Ainsi, il pourrait être envisagé d'associer aux galets assurant l'auto-blocage des butées d'arrêt destinées à limiter leur pénétration dans le tube support, ce qui permet de leur faire jouer également le rôle de limitateur de couplé.Of course, the invention is not limited to the embodiments described above but it covers all the variants produced in the same spirit. Thus, it could be envisaged to associate with the rollers ensuring self-locking of the abutments intended to limit their penetration into the support tube, which allows them to also play the role of coupling limiter.

Par rapport aux solutions antérieures, un tel dispositif permet non seulement d'éviter l'utilisation de mandrin Õsupport interne, mais par ailleurs, assure une très grande sécurité de fonctionnement tout en étant d'une utilisation particulièrement simple et efficace.Compared to previous solutions, such a device not only avoids the use of an internal support mandrel, but also ensures very high operating safety while being particularly simple and effective to use.

Claims (6)

1/ Dispositif pour le maintien le positionnement et l'entraînement d'un support tubulaire autour duquel doit être enroulé un matériau continu, en forme de feuille, caractérisé par le fait qu'il se présente sous la forme d'un mors réalisé en deux parties (2-3), articulées l'une par rapport à l'autre, définissant entre elles une cage (4) destinée à recevoir l'extrémité du tube support (5), une de ces parties élémentaires (2) étant montée sur l'arbre de commande d'entraînement (6) en rotation et l'autre partie élémentaire (3) étant montée pivotante sur la partie précitée et comportant des moyens assurant le serrage et l'auto-blocage du tube support (5) lors de l'enroulement de la matière.1 / Device for maintaining the positioning and the drive of a tubular support around which a continuous material, in sheet form, must be wound, characterized in that it is in the form of a jaw produced in two parts (2-3), articulated with respect to each other, defining between them a cage (4) intended to receive the end of the support tube (5), one of these elementary parts (2) being mounted on the drive control shaft (6) in rotation and the other elementary part (3) being pivotally mounted on the aforementioned part and comprising means ensuring the tightening and self-locking of the support tube (5) during the winding of the material. 2/ Dispositif selon la revendication 1, caractérisé par le fait que la partie (2) solidaire de l'axe d'entraînement (6) se présente sous la forme d'une coquille, le maintien et l'articulation de ladite coquille (3) par rapport au berceau (2) étant obtenus au moyen d'un boitier (8) monté sur le berceau (2) par l'intermédiaire d'un axe de pivotement (9), le montage de la coquille (3) à l'intérieur du boitier (8) étant réalisé par l'in-- termédiaire d'une biellette (12) montée également pivotante autour d'un axe fixe (13), solidaire dudit berceau inférieur (2), les moyens de serrage et d'auto-blocage associés à ladite coquille (3) étant constitués par une biellette (16) dont les extrémités sont montées au moyen d'axes (17-18) respectivement au boitier (8) et à la biellette (16), l'auto-blocage étant assuré au moyen de galets (19-20) montés de manière excentrique sur la coquille (3).2 / Device according to claim 1, characterized in that the part (2) integral with the drive shaft (6) is in the form of a shell, the maintenance and articulation of said shell (3 ) relative to the cradle (2) being obtained by means of a housing (8) mounted on the cradle (2) by means of a pivot axis (9), the mounting of the shell (3) to the inside the housing (8) being performed by the in- - termédiaire of a link (12) also pivotally mounted about a fixed axis (13) secured to said lower cradle (2), the clamping means and 'self-locking associated with said shell (3) being constituted by a link (16) whose ends are mounted by means of pins (17-18) respectively to the housing (8) and to the link (16), the self-locking being ensured by means of rollers (19-20) mounted eccentrically on the shell (3). 3/ Dispositif selon l'une des revendications 1 et 2, caractérisé par le fait que les moyens de serrage et d'auto-blocage sont associés à un système de réglage de la force de serrage constitués par une tige filetée (21) montée sur la coquille (3), tige qui coopère avec un écrou (22) solidaire de la biellette (12).3 / Device according to one of claims 1 and 2, characterized in that the clamping and self-locking means are associated with a clamping force adjustment system constituted by a threaded rod (21) mounted on the shell (3), rod which cooperates with a nut (22) integral with the link (12). 4/ Dispositif selon l'une des revendications 1 à 3, caractérisé par le fait que le palier support (7) supportant l'axe d'entraînement (6) présente une face avant inclinée, le pan coupé (24) de ce palier permettant de définir la position du boitier (8) en position ouverte et assurant de manière automatique la fermeture du mors lors de sa mise en rotation.4 / Device according to one of claims 1 to 3, characterized in that the support bearing (7) supporting the drive shaft (6) has an inclined front face, the cutaway (24) of this bearing allowing define the position of the housing (8) in the open position and automatically closing the jaw when it is rotated. 5/ Dispositif selon la revendication 2, caractérisé par le fait que les galets (19-20) montés de manière excentrique sur la coquille (3) sont associés à des butées d'arrêt destinées à limiter leur pénétration dans le tube support.5 / Device according to claim 2, characterized in that the rollers (19-20) mounted eccentrically on the shell (3) are associated with stops intended to limit their penetration into the support tube. 6/ Dispositif selon la revendication 2, caractérisé par le fait que le berceau inférieur (2) comporte une partie rapportée (2a) amovible.6 / Device according to claim 2, characterized in that the lower cradle (2) has an attached part (2a) removable.
EP83420011A 1982-02-04 1983-01-25 Device for supporting, positioning and driving a tubular support during the winding of a web Expired EP0086165B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83420011T ATE17110T1 (en) 1982-02-04 1983-01-25 DEVICE FOR HOLDING, POSITIONING AND DRIVING THE WINDING SHAFT WHEN WINDING WEBS.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8201951 1982-02-04
FR8201951A FR2520709A1 (en) 1982-02-04 1982-02-04 DEVICE FOR MAINTAINING, POSITIONING AND DRIVING A TUBULAR SUPPORT WHEN WINDING SHEET MATERIAL

Publications (2)

Publication Number Publication Date
EP0086165A1 true EP0086165A1 (en) 1983-08-17
EP0086165B1 EP0086165B1 (en) 1985-12-27

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EP83420011A Expired EP0086165B1 (en) 1982-02-04 1983-01-25 Device for supporting, positioning and driving a tubular support during the winding of a web

Country Status (4)

Country Link
EP (1) EP0086165B1 (en)
AT (1) ATE17110T1 (en)
DE (1) DE3361579D1 (en)
FR (1) FR2520709A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3509108C1 (en) * 1985-03-14 1986-09-04 Ludwig Boschert GmbH & Co KG, 7850 Lörrach Folding storage

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE917592C (en) * 1952-08-15 1954-09-06 Faerberei & Appretur Schutster Device for coupling winding bars
FR2443406A1 (en) * 1978-12-05 1980-07-04 Kunz Masch App DEVICE FOR COUPLING WINDING CHUCKS WITH SHAFTS

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE917592C (en) * 1952-08-15 1954-09-06 Faerberei & Appretur Schutster Device for coupling winding bars
FR2443406A1 (en) * 1978-12-05 1980-07-04 Kunz Masch App DEVICE FOR COUPLING WINDING CHUCKS WITH SHAFTS

Also Published As

Publication number Publication date
EP0086165B1 (en) 1985-12-27
FR2520709B1 (en) 1984-03-16
DE3361579D1 (en) 1986-02-06
ATE17110T1 (en) 1986-01-15
FR2520709A1 (en) 1983-08-05

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