EP1703997A1 - Device for cleaning rollers - Google Patents

Device for cleaning rollers

Info

Publication number
EP1703997A1
EP1703997A1 EP05717654A EP05717654A EP1703997A1 EP 1703997 A1 EP1703997 A1 EP 1703997A1 EP 05717654 A EP05717654 A EP 05717654A EP 05717654 A EP05717654 A EP 05717654A EP 1703997 A1 EP1703997 A1 EP 1703997A1
Authority
EP
European Patent Office
Prior art keywords
roller
cleaning
cleaned
rotation
rollers
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP05717654A
Other languages
German (de)
French (fr)
Inventor
Luciano Rui
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.)
Saint Gobain Glass France SAS
Compagnie de Saint Gobain SA
Original Assignee
Saint Gobain Glass France SAS
Compagnie de Saint Gobain SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Saint Gobain Glass France SAS, Compagnie de Saint Gobain SA filed Critical Saint Gobain Glass France SAS
Publication of EP1703997A1 publication Critical patent/EP1703997A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B1/00—Cleaning by methods involving the use of tools
    • B08B1/30—Cleaning by methods involving the use of tools by movement of cleaning members over a surface

Definitions

  • the invention relates to a device for cleaning cylindrical rollers liable to become dirty during their operation. More particularly, the invention relates to the cleaning of conveyor rollers for glass sheets or a glass ribbon, in particular those of the drying rack following an installation for forming flat glass such as a float (forming on a bath of liquid metal generally based on tin).
  • a drying rack the glass sheets are conveyed by a bed of rollers.
  • the atmosphere of the clothes line is enriched in SO 2 so as to generate a skin of sodium sulphate on the surface of the glass, which reduces the risks of marking of the glass by the rollers.
  • there is a progressive fouling of the rollers by the sulfate which leads to an increase in the diameter of the rollers.
  • the rollers should be cleaned regularly, preferably without stopping the installation.
  • the rollers can be removed from the drying rack individually without stopping operation, but it is a delicate and dangerous operation for equipment and people.
  • Another solution has been proposed by US6170293 which describes a mobile system which is placed between the rollers and which cleans them with a wire brush.
  • This system involves springs so as to adapt its own geometry to that of the rollers, which can be more or less distorted and more or less parallel. The use of such hot springs (around 600 ° C for a clothes line) is not recommended.
  • brushing with a wire brush can scratch the rollers, especially at such temperatures (600 ° C).
  • a device is used, not placed between two juxtaposed rollers but a device carried and guided by each roller, independent of the neighboring roller.
  • the device according to the invention at least partially surrounds the roller to be cleaned and can be moved parallel to the axis of the roller. It cleans the useful length of the roller by a cleaning means fixed to said device.
  • the device at least partially surrounds the roller so that it can be carried by it without falling and so that it can slide along the roller.
  • the device can therefore comprise a sort of slide or ferrule surrounding the roller without preventing the rotation of the latter in accordance with its main function.
  • the invention relates firstly to a device for cleaning a horizontal roller rotating around its axis, said device being carried and guided by said roller without following it in its rotation, which can be moved by sliding along the roller and cleaning the surface of said roller during its sliding by a cleaning means fixed to said device.
  • the rollers to be cleaned are those of a horizontal conveying bed, for example of flat glass
  • the device only partially surrounds the roller to be cleaned because it must not prevent the conveying of 'objects on the surface of the roller bed of which it is a part (succession of aligned horizontal rollers, parallel to each other, to form a conveying bed).
  • the entire device is located under the conveying plane (contact plane between a conveyed flat object and the rollers).
  • the device may in particular comprise two contact surfaces or pads resting on the roller (called “carrier"), fixedly connected to each other by a part passing under the roller, said device being provided with a cleaning system and capable of sliding parallel to the axis of the roller so as to clean its entire useful length.
  • the device can comprise two contact surfaces with the upper face of the roller, said surfaces being connected together by a connection passing under said roller, said surfaces serving both to carry the device and to slide on the roller. .
  • the device according to the invention cleans the roller while it rotates to fulfill its function (in particular the conveying of flat glass).
  • the device according to the invention does not rotate and is not driven by the roller.
  • the stop can be a skate.
  • the device then has two parallel guides for its movement along the roller: the roller itself and this rail or this rod.
  • the device comprises an arm passing under a roller close to that to be cleaned, said arm carrying a stopper which can come into contact with said neighboring roller in order to prevent the device from being driven in rotation by the roller. to clean.
  • the cleaning means carried by the device can be a cutting tool.
  • This cutting tool can in particular be carried by one of the two pads acting as a contact surface with the roller to be cleaned.
  • This cutting tool is placed on the device on the side to be cleaned, that is to say, when it is placed at one of the ends of the roll not yet cleaned, opposite the other end.
  • the cutting tool fulfills its function in the device sliding along the roller 'to clean.
  • the cutting tool may in particular comprise a succession of juxtaposed teeth in order to cut in the manner of a knife or a serrated saw.
  • a metal brush driven in rotation by a motor carried by the device according to the invention As a means of cleaning the roller, it is also possible to use a metal brush driven in rotation by a motor carried by the device according to the invention.
  • the device is moved along the roller in order to clean its useful surface. This displacement can be actuated for example by a rod fixed on it by one end, said rod being parallel to the roller to be cleaned, the other end being able to be manipulated for example by an operator to give the device its translational movement along the roller .
  • the invention also relates to the use of the device according to the invention for cleaning conveyor rolls of objects, in particular of plates.
  • the rollers can also convey a ribbon like a continuous glass ribbon leaving a floating installation.
  • FIG. 1 represents (seen from above) a roller 1 driven by a rotation on its axis AA ′, carrying a device 2 according to the invention.
  • FIG. 2 represents a set of three rollers 1, 1 ', 1 "juxtaposed and conveying a glass ribbon 3, the roller 1 carrying the device according to the invention.
  • This device comprises two contact surfaces (pads 4 and 5) with the upper face of the roller and resting on these surfaces on the roller without being driven by its rotation. These two pads are connected together by the connecting piece 6 passing under the roller.
  • the pad 5 is equipped with a cutting tool 7 By sliding along the roller 1, the device 2 moves the cutting tool 7, which rids the unwanted deposits of the roller.
  • the device can be moved along the roller by an operator using a rod. fixed to the device and parallel to the roller underneath it.
  • the cutting tool is preferably made of a much harder material than the roller, for example tungsten carbide.
  • the pads 4 and 5 both have the function of sliding on the roller (and not for one of them to cut the deposits).
  • a motor 9 is fixed under the device 2, that is to say approximately at the level of the part 6 forming the link between the two pads.
  • This engine rotates a wire brush 10 cleaning the roller 1.
  • the rod 8 is used to move the device over the entire useful length of the roller.
  • the engine may in particular be of the pneumatic type, that is to say driven in rotation by a flow of pressurized air. This air, after passing through the engine to drive it, can be expelled at the level of the brush and thus serve in addition to cooling fluid.
  • the device according to the invention can be mounted on the roller to be cleaned at any time during operation.
  • FIG. 4 represents a conveyor roller 1 comprising at one end a portion of smaller diameter 11.
  • the device 2 is presented under the spindle 11, the device is mounted around the spindle (movement of the arrow (a)) and place it at the end of the larger diameter part, in zone 12 (movement of the arrow (b)).
  • This zone 12 will not be cleaned, but in fact this is not necessary since it is a non-useful zone during operation, that is to say not receiving the glass and not getting dirty so no.
  • the rockets pass through the walls of the clothes line to rest on rolling bearings outside the clothes line. Movable parts of the walls generally allow access to the rockets. It is therefore sufficient to remove these movable walls under the rockets to set up the device according to the invention.
  • the rod 8 enables the device to be actuated from outside the clothes line.
  • the rockets can have a diameter of 200 mm and the central part of the rollers a diameter of 305 mm.
  • the device according to the invention can also be used to clean the sizing rollers of glass fibers. These rollers soak in a fairly sticky sizing liquid and become charged with deposits from this liquid over time. If necessary, instead of mounting a cutting tool on one of the pads, it can be fitted with a polishing system rubbing the metal of the roller without scratching it (operation also called "burnishing").

Landscapes

  • Cleaning In General (AREA)
  • Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
  • Rollers For Roller Conveyors For Transfer (AREA)

Abstract

The invention relates to a device (2) for cleaning a horizontal roller (1) rotating about its axis (A-A'), said device (2) being carried and guided by this roller (1) without following it in the rotation thereof, and being able to be displaced by sliding along the roller (1) while cleaning the surface of the roller (1) over the course of its sliding via a cleaning means, for example, a cutting tool (7) fixed to the device (2). The inventive device (2) makes it possible to clean rollers for conveying glass sheets or a glass ribbon, particularly those of a lehr following a flat glass forming installation such as a float glass installation (forming on a molten metal bath based, in general, on tin).

Description

DISPOSITIF DE NETTOYAGE DE ROULEAUX ROLL CLEANING DEVICE
L'invention concerne un dispositif pour nettoyer des rouleaux cylindriques susceptibles de s'encrasser au cours de leur fonctionnement. Plus particulièrement, l'invention concerne le nettoyage de rouleaux de convoyage de feuilles de verre ou d'un ruban de verre, notamment ceux de l'étenderie faisant suite à une installation de formage de verre plat comme un float (formage sur un bain de métal liquide généralement à base d'étain). Dans une étenderie, les feuilles de verre sont convoyées par un lit de rouleaux. Généralement, l'atmosphère de l'étenderie est enrichie en SO2 de façon à générer une peau de sulfate de sodium en surface du verre, ce qui diminue les risques de marquage du verre par les rouleaux. Cependant, on observe un encrassement progressif des rouleaux par le sulfate ce qui conduit à une augmentation de diamètre des rouleaux . Il convient de nettoyer régulièrement les rouleaux, de préférence sans devoir arrêter l'installation. On peut retirer les rouleaux de l'étenderie individuellement sans arrêter le fonctionnement, mais c'est une opération délicate et dangereuse pour le matériel et les hommes. Une autre solution a été proposée par le US6170293 qui décrit un système mobile que l'on place entre les rouleaux et qui les nettoie par une brosse métallique. Ce système fait intervenir des ressorts de façon à adapter sa propre géométrie à celle des rouleaux, lesquels peuvent être plus ou moins faussés et plus ou moins parallèles. L'usage de tels ressorts à chaud (vers 600°C pour une étenderie) n'est pas recommandé. De plus, un brossage par une brosse métallique peut rayer les rouleaux, surtout à de telles températures (600°C). Selon l'invention, on utilise un dispositif non pas placé entre deux rouleaux juxtaposés mais un dispositif porté et guidé par chaque rouleau, indépendant du rouleau voisin. Le dispositif selon l'invention entoure au moins partiellement le rouleau à nettoyer et peut être déplacé parallèlement à l'axe du rouleau. Il nettoie la longueur utile du rouleau par un moyen de nettoyage fixé audit dispositif. Le dispositif entoure au moins partiellement le rouleau pour pouvoir être porté par lui sans tomber et pour pouvoir coulisser le long du rouleau. Dans ce but, le dispositif peut donc comprendre une sorte de coulisseau ou virole entourant le rouleau sans empêcher la rotation de ce dernier conformément à sa fonction principale. Ainsi, l'invention concerne en premier lieu un dispositif de nettoyage d'un rouleau horizontal tournant autour de son axe, ledit dispositif étant porté et guidé par ledit rouleau sans le suivre dans sa rotation, pouvant être déplacé par coulissement le long du rouleau et nettoyant la surface dudit rouleau au cours de son coulissement par un moyen de nettoyage fixé audit dispositif. Selon un mode de réalisation, dans le cas ou les rouleaux à nettoyer sont ceux d'un lit de convoyage horizontal, par exemple de verre plat, le dispositif n'entoure que partiellement le rouleau à nettoyer car il ne doit pas empêcher le convoyage d'objets en surface du lit de rouleau dont il fait partie (succession de rouleaux horizontaux alignés, parallèles entre eux, pour former un lit de convoyage). Dans ce cas, l'intégralité du dispositif se trouve sous le plan de convoyage (plan de contact entre un objet plat convoyé et les rouleaux). Le dispositif peut notamment comprendre deux surfaces de contact ou patins reposant sur le rouleau (dit « porteur »), reliés entre eux de façon fixe par une pièce passant sous le rouleau, ledit dispositif étant muni d'un systèrrie de nettoyage et pouvant coulisser parallèlement à l'axe du rouleau de façon à nettoyer toute sa longueur utile. Selon l'invention, le dispositif peut comprendre deux surfaces de contact avec la face supérieur du rouleau, lesdites surfaces étant reliées entre elles par une liaison passant sous ledit rouleau, lesdites surfaces servant à la fois à porter le dispositif et à coulisser sur le rouleau. Le dispositif selon l'invention nettoie le rouleau pendant que celui-ci tourne pour remplir sa fonction (notamment le convoyage de verre plat). Le dispositif selon l'invention ne tourne pas et n'est pas entraîné par le rouleau. Pour éviter d'être entraîné par la rotation du rouleau, on peut notamment envisager au moins l'une des solutions suivantes : donner au dispositif un poids suffisant et/ou un centre de gravité suffisamment en-dessous du rouleau, prévoir une butée reliée au dispositif par un bras passant sous un rouleau voisin de façon à ce que la butée vienne en contact avec ledit rouleau voisin pour le cas où le dispositif aurait tendance à être entraîné en rotation par le rouleau. La butée peut être un patin. prévoir un rail ou une tige passant sous le rouleau à nettoyer et parallèle à ce rouleau, et guidant également le dispositif dans son mouvement coulissant le long du rouleau. Le dispositif a alors deux guides parallèles pour son déplacement le long du rouleau : le rouleau lui-même et ce rail ou cette tige. Ainsi, selon un mode de réalisation, le dispositif comprend un bras passant sous un rouleau voisin de celui à nettoyer, ledit bras portant une butée pouvant venir en contact avec ledit rouleau voisin afin d'empêcher l'entraînement en rotation du dispositif par le rouleau à nettoyer. Le moyen de nettoyage porté par le dispositif peut être un outil de coupe. Cet outil de coupe peut notamment être porté par l'un des deux patins faisant office de surface de contact avec le rouleau à nettoyer. Cet outil de coupe est placé sur le dispositif du côté à nettoyer, c'est-à-dire, lorsqu'il est placé à l'une des extrémité du rouleau non encore nettoyé, en regard de l'autre extrémité. L'outil de coupe remplit sa fonction au cours du coulissement du dispositif le long du rouleau 'à nettoyer. L'outil de coupe peut notamment comprendre unè^succession de dents juxtaposées afin de couper à la manière d'un couteau ou d'une scie dentelée. Comme moyen de nettoyage du rouleau, on peut également utiliser une brosse métallique animée en rotation par un moteur porté par le dispositif selon l'invention. Le dispositif est déplacé le long du rouleau afin de nettoyer sa surface utile. Ce déplacement peut être actionné par exemple par une tige fixée sur lui par une extrémité, ladite tige étant parallèle au rouleau à nettoyer, l'autre extrémité pouvant être manipulée par exemple par un opérateur pour donner au dispositif son mouvement de translation le long du rouleau. L'invention concerne également l'utilisation du dispositif selon l'invention pour nettoyer des rouleaux de convoyage d'objets, notamment de plaques. Les rouleaux peuvent également convoyer un ruban comme un ruban continu de verre sortant d'une installation de flottage. Ces objets (notamment en plaques) peuvent être de toute nature, notamment de verre, notamment de verre plat. Pour convoyer, les rouleaux sont juxtaposés parallèlement dans un plan, dans un L'utilisation selon l'invention peut avoir lieu notamment dans une étenderie, notamment pour enlever les dépôts de sulfate de sodium encrassant les rouleaux. L'invention permet le nettoyage des rouleaux pendant leur fonctionnement sans qu'il ne soit nécessaire ni de les déposer ni de les interrompre. La figure 1 représente (vu de dessus) un rouleau 1 animé d'une rotation sur son axe A-A', portant un dispositif 2 selon l'invention. La figure 2 représente un ensemble de trois rouleaux 1, l', 1" juxtaposés et convoyant un ruban de verre 3, le rouleau 1 portant le dispositif selon l'invention. Ce dispositif comprend deux surfaces de contact (patins 4 et 5) avec la face supérieure du rouleau et reposant par ces surfaces sur le rouleau sans être entraînés par sa rotation. Ces deux patins sont reliés entre eux par la pièce de liaison 6 passant sous le rouleau. Le patin 5 est équipé d'un outil de coupe 7. En coulissant le long du rouleau 1 , le dispositif 2 déplace l'outil de coupe 7, lequel débarrasse le rouleau des dépôts indésirables. Le déplacement du dispositif le long du rouleau peut être réalisé par un opérateur à l'aide d'une tige fixée sur le dispositif et parallèle au rouleau sous celui-ci. L'outil de coupe est de préférence en un matériau beaucoup plus dur que le rouleau, par exemple en carbure de tungstène. Afin d'empêcher que le dispositif v2 ne soit entraîné en rotation par le rouleau porteur, on peut prévoir de prolonger la pièce de liaison 6 par un bras 15 jusque sous un rouleau voisin (celui en amont par rapport à la direction de convoyage du ruban de verre) de façon à ce qu'un patin 14 porté par ledit bras 15 vienne en contact avec ledit rouleau voisin l' en cas de légère rotation, pour empêcher la progression de cette rotation. On voit bien sur cette figure que le dispositif est intégralement sous le plan de convoyage 16. De ce fait, il ne gêne par le convoyage du verre plat 3. L'outil de coupe peut comprendre une succession de dents juxtaposées 13 comme montré sur la figure 5. On peut aussi remplacer l'outil de coupe par une brosse métallique animée en rotation par un moteur. La figure 3 représente un tel dispositif. Dans ce cas, les patins 4 et 5 ont tous deux la fonction de glisser sur le rouleau (et pas pour l'un d'eux de couper les dépôts). Un moteur 9 est fixé sous le dispositif 2, c'est-à-dire à peu près au niveau de la pièce 6 faisant le lien entre les deux patins. Ce moteur fait tourner une brosse métallique 10 nettoyant le rouleau 1. La tige 8 sert à déplacer le dispositif sur toute la longueur utile du rouleau. Le moteur peut notamment être du type pneumatique, c'est-à-dire animé en rotation par un flux d'air sous pression. Cet air, après être passé dans le moteur pour l'entraîner peut être expulsé au niveau de la brosse et servir ainsi en plus de fluide de refroidissement. On peut monter le dispositif selon l'invention sur le rouleau à nettoyer à tout moment en cours de fonctionnement. Si les rouleaux présentent à leurs extrémités (cas des « fusées » des rouleaux de convoyage d'étenderie) des diamètres plus faibles qu'en leur partie centrale, il suffit de prévoir un écartement entre les deux patins (4,5) d'une part plus grands que le diamètre de ces extrémités et d'autre part plus petit bien entendu que le diamètre du rouleau dans sa partie centrale. La figure 4 représente un rouleau 1 de convoyage comprenant à une extrémité une partie de plus faible diamètre 11. On présente le dispositif 2 sous la fusée 11 , on monte le dispositif autour de la fusée (mouvement de la flèche (a)) et on le dépose au bout de la partie à plus grand diamètre, dans la zone 12 (mouvement de la flèche (b)). Cette zone 12 ne sera pas nettoyée, mais en fait cela n'est pas nécessaire puisque qu'il s'agit d'une zone non utile en cours de fonctionnement, c'est à dire ne recevant pas le verre et ne s'encrassant donc pas. Dans le cas d'une étenderie, les fusées traversent les parois de l'étenderie pour reposer sur des palier de roulement à l'extérieur de l'étenderie. Des parties mobiles de parois permettent généralement d'avoir accès aux fusées. Il suffit donc d'enlever ces parois mobiles sous les fusées pour mettre en place le dispositif selon l'invention. La tige 8 permet d'actionner le dispositif de l'extérieur de l'étenderie. A titre d'exemple, les fusées peuvent avoir un diamètre de 200 mm et la partie centrale des rouleaux un diamètre de 305 mm. On peut prévoir un tuyau d'aspiration fixé sur le dispositif 2 venant jusqu'à l'endroit ou les dépôts sont enlevés de façon à récupérer ceux-ci. Ce tuyau sort de l'étenderie en suivant la tige 8. Le dispositif selon l'invention peut également servir à nettoyer les rouleaux d'ensimage des fibres de verre. Ces rouleaux trempent dans un liquide d'ensimage assez collant et se chargent avec le temps de dépôts provenant de ce liquide. Le cas échéant, au lieu de monter un outil de coupe sur l'un des patins, on peut l'équiper d'un système de polissage frottant le métal du rouleau sans le griffer (opération également appelé « brunissage »). The invention relates to a device for cleaning cylindrical rollers liable to become dirty during their operation. More particularly, the invention relates to the cleaning of conveyor rollers for glass sheets or a glass ribbon, in particular those of the drying rack following an installation for forming flat glass such as a float (forming on a bath of liquid metal generally based on tin). In a drying rack, the glass sheets are conveyed by a bed of rollers. Generally, the atmosphere of the clothes line is enriched in SO 2 so as to generate a skin of sodium sulphate on the surface of the glass, which reduces the risks of marking of the glass by the rollers. However, there is a progressive fouling of the rollers by the sulfate, which leads to an increase in the diameter of the rollers. The rollers should be cleaned regularly, preferably without stopping the installation. The rollers can be removed from the drying rack individually without stopping operation, but it is a delicate and dangerous operation for equipment and people. Another solution has been proposed by US6170293 which describes a mobile system which is placed between the rollers and which cleans them with a wire brush. This system involves springs so as to adapt its own geometry to that of the rollers, which can be more or less distorted and more or less parallel. The use of such hot springs (around 600 ° C for a clothes line) is not recommended. In addition, brushing with a wire brush can scratch the rollers, especially at such temperatures (600 ° C). According to the invention, a device is used, not placed between two juxtaposed rollers but a device carried and guided by each roller, independent of the neighboring roller. The device according to the invention at least partially surrounds the roller to be cleaned and can be moved parallel to the axis of the roller. It cleans the useful length of the roller by a cleaning means fixed to said device. The device at least partially surrounds the roller so that it can be carried by it without falling and so that it can slide along the roller. For this purpose, the device can therefore comprise a sort of slide or ferrule surrounding the roller without preventing the rotation of the latter in accordance with its main function. Thus, the invention relates firstly to a device for cleaning a horizontal roller rotating around its axis, said device being carried and guided by said roller without following it in its rotation, which can be moved by sliding along the roller and cleaning the surface of said roller during its sliding by a cleaning means fixed to said device. According to one embodiment, in the case where the rollers to be cleaned are those of a horizontal conveying bed, for example of flat glass, the device only partially surrounds the roller to be cleaned because it must not prevent the conveying of 'objects on the surface of the roller bed of which it is a part (succession of aligned horizontal rollers, parallel to each other, to form a conveying bed). In this case, the entire device is located under the conveying plane (contact plane between a conveyed flat object and the rollers). The device may in particular comprise two contact surfaces or pads resting on the roller (called "carrier"), fixedly connected to each other by a part passing under the roller, said device being provided with a cleaning system and capable of sliding parallel to the axis of the roller so as to clean its entire useful length. According to the invention, the device can comprise two contact surfaces with the upper face of the roller, said surfaces being connected together by a connection passing under said roller, said surfaces serving both to carry the device and to slide on the roller. . The device according to the invention cleans the roller while it rotates to fulfill its function (in particular the conveying of flat glass). The device according to the invention does not rotate and is not driven by the roller. To avoid being driven by the rotation of the roller, one can in particular envisage at least one of the following solutions: give the device sufficient weight and / or a center of gravity sufficiently below the roller, provide a stopper connected to the device by an arm passing under a neighboring roller so that the stop comes into contact with said neighboring roller in the case where the device tends to be driven in rotation by the roller. The stop can be a skate. provide a rail or rod passing under the roller to be cleaned and parallel to this roller, and also guiding the device in its sliding movement along the roller. The device then has two parallel guides for its movement along the roller: the roller itself and this rail or this rod. Thus, according to one embodiment, the device comprises an arm passing under a roller close to that to be cleaned, said arm carrying a stopper which can come into contact with said neighboring roller in order to prevent the device from being driven in rotation by the roller. to clean. The cleaning means carried by the device can be a cutting tool. This cutting tool can in particular be carried by one of the two pads acting as a contact surface with the roller to be cleaned. This cutting tool is placed on the device on the side to be cleaned, that is to say, when it is placed at one of the ends of the roll not yet cleaned, opposite the other end. The cutting tool fulfills its function in the device sliding along the roller 'to clean. The cutting tool may in particular comprise a succession of juxtaposed teeth in order to cut in the manner of a knife or a serrated saw. As a means of cleaning the roller, it is also possible to use a metal brush driven in rotation by a motor carried by the device according to the invention. The device is moved along the roller in order to clean its useful surface. This displacement can be actuated for example by a rod fixed on it by one end, said rod being parallel to the roller to be cleaned, the other end being able to be manipulated for example by an operator to give the device its translational movement along the roller . The invention also relates to the use of the device according to the invention for cleaning conveyor rolls of objects, in particular of plates. The rollers can also convey a ribbon like a continuous glass ribbon leaving a floating installation. These objects (in particular in plates) can be of any kind, in particular of glass, in particular of flat glass. For convey, the rollers are juxtaposed parallel in a plane, in a The use according to the invention can take place in particular in a drying rack, in particular for removing deposits of sodium sulfate fouling the rollers. The invention allows the rollers to be cleaned during their operation without it being necessary either to deposit them or to interrupt them. FIG. 1 represents (seen from above) a roller 1 driven by a rotation on its axis AA ′, carrying a device 2 according to the invention. FIG. 2 represents a set of three rollers 1, 1 ', 1 "juxtaposed and conveying a glass ribbon 3, the roller 1 carrying the device according to the invention. This device comprises two contact surfaces (pads 4 and 5) with the upper face of the roller and resting on these surfaces on the roller without being driven by its rotation. These two pads are connected together by the connecting piece 6 passing under the roller. The pad 5 is equipped with a cutting tool 7 By sliding along the roller 1, the device 2 moves the cutting tool 7, which rids the unwanted deposits of the roller. The device can be moved along the roller by an operator using a rod. fixed to the device and parallel to the roller underneath it. The cutting tool is preferably made of a much harder material than the roller, for example tungsten carbide. In order to prevent the device v 2 from being driven rotating by l e carrier roller, provision can be made to extend the connecting piece 6 by an arm 15 as far as a neighboring roller (the one upstream relative to the direction of conveying of the glass ribbon) so that a shoe 14 carried by said arm 15 comes into contact with said neighboring roller 1c in the event of slight rotation, to prevent the progression of this rotation. It can be seen in this figure that the device is completely under the conveying plane 16. Therefore, it does not interfere with the conveying of the flat glass 3. The cutting tool may comprise a succession of juxtaposed teeth 13 as shown in the figure 5. You can also replace the cutting tool with a wire brush driven in rotation by a motor. Figure 3 shows such a device. In this case, the pads 4 and 5 both have the function of sliding on the roller (and not for one of them to cut the deposits). A motor 9 is fixed under the device 2, that is to say approximately at the level of the part 6 forming the link between the two pads. This engine rotates a wire brush 10 cleaning the roller 1. The rod 8 is used to move the device over the entire useful length of the roller. The engine may in particular be of the pneumatic type, that is to say driven in rotation by a flow of pressurized air. This air, after passing through the engine to drive it, can be expelled at the level of the brush and thus serve in addition to cooling fluid. The device according to the invention can be mounted on the roller to be cleaned at any time during operation. If the rollers have smaller diameters at their ends (in the case of "spindles" of the conveyor conveyor rollers) than at their central part, it is sufficient to provide a spacing between the two pads (4,5) of a part larger than the diameter of these ends and on the other hand, of course, smaller than the diameter of the roller in its central part. FIG. 4 represents a conveyor roller 1 comprising at one end a portion of smaller diameter 11. The device 2 is presented under the spindle 11, the device is mounted around the spindle (movement of the arrow (a)) and place it at the end of the larger diameter part, in zone 12 (movement of the arrow (b)). This zone 12 will not be cleaned, but in fact this is not necessary since it is a non-useful zone during operation, that is to say not receiving the glass and not getting dirty so no. In the case of a clothes line, the rockets pass through the walls of the clothes line to rest on rolling bearings outside the clothes line. Movable parts of the walls generally allow access to the rockets. It is therefore sufficient to remove these movable walls under the rockets to set up the device according to the invention. The rod 8 enables the device to be actuated from outside the clothes line. For example, the rockets can have a diameter of 200 mm and the central part of the rollers a diameter of 305 mm. It is possible to provide a suction pipe fixed to the device 2 coming to the place where the deposits are removed so as to recover them. This pipe leaves the drying rack following the rod 8. The device according to the invention can also be used to clean the sizing rollers of glass fibers. These rollers soak in a fairly sticky sizing liquid and become charged with deposits from this liquid over time. If necessary, instead of mounting a cutting tool on one of the pads, it can be fitted with a polishing system rubbing the metal of the roller without scratching it (operation also called "burnishing").

Claims

REVENDICATIONS
1. Dispositif de nettoyage d'un rouleau horizontal tournant autour de son axe, ledit dispositif étant porté et guidé par ledit rouleau sans le suivre dans sa rotation, pouvant être déplacé par coulissement le long du rouleau et nettoyant la surface dudit rouleau au cours de son coulissement par un moyen de nettoyage fixé audit dispositif.1. Device for cleaning a horizontal roller rotating around its axis, said device being carried and guided by said roller without following it in its rotation, being able to be moved by sliding along the roller and cleaning the surface of said roller during its sliding by a cleaning means fixed to said device.
2. Dispositif selon la revendication précédente, qu'il comprend deux surfaces de contact avec la face supérieur du rouleau, lesdites surfaces étant reliées entre elles par une liaison passant sous ledit rouleau, lesdites surfaces servant à la fois à porter le dispositif et à coulisser sur le rouleau.2. Device according to the preceding claim, that it comprises two contact surfaces with the upper face of the roller, said surfaces being connected together by a connection passing under said roller, said surfaces serving both to carry the device and to slide. on the roller.
3. Dispositif selon l'une des revendications précédentes, caractérisé en ce qu'il comprend un bras passant sous un rouleau voisin de celui à nettoyer, ledit bras portant une butée pouvant venir en contact avec ledit rouleau voisin afin d'empêcher l'entraînement en rotation du dispositif par le rouleau à nettoyer.3. Device according to one of the preceding claims, characterized in that it comprises an arm passing under a roller close to that to be cleaned, said arm carrying a stopper which can come into contact with said neighboring roller in order to prevent entrainment in rotation of the device by the roller to be cleaned.
4. Dispositif selon l'une des revendications précédentes, caractérisé en ce que le moyen de nettoyage est un outil de coupe.4. Device according to one of the preceding claims, characterized in that the cleaning means is a cutting tool.
5. Dispositif selon la revendication précédente, caractérisé en ce que l'outil de coupe est porté par un patin faisant office de surface de contact avec le rouleau à nettoyer.5. Device according to the preceding claim, characterized in that the cutting tool is carried by a shoe acting as a contact surface with the roller to be cleaned.
6. Dispositif selon l'une des revendications 1 à 3, caractérisé en ce que le moyen de nettoyage est une brosse métallique animée en rotation par un moteur.6. Device according to one of claims 1 to 3, characterized in that the cleaning means is a wire brush driven in rotation by a motor.
7. Rouleau nettoyé par le dispositif de l'une des revendications de dispositif précédentes.7. Roll cleaned by the device of one of the preceding device claims.
8. Utilisation du dispositif de l'une des revendications précédentes pour nettoyer un rouleau de convoyage.8. Use of the device of one of the preceding claims for cleaning a conveyor roller.
9. Utilisation selon la revendication précédente, caractérisé en ce que le rouleau convoie des plaques.9. Use according to the preceding claim, characterized in that the roller conveys plates.
10. Utilisation selon l'une des revendications d'utilisation précédentes, caractérisé en ce que le rouleau convoie du verre. 10. Use according to one of the preceding use claims, characterized in that the roller conveys glass.
11. Utilisation selon la revendication précédente, caractérisé en ce que les objets sont des plaques ou ruban.11. Use according to the preceding claim, characterized in that the objects are plates or tape.
12. Utilisation selon la revendication précédente, caractérisé en ce que le rouleau de convoyage est celui d'une étenderie.12. Use according to the preceding claim, characterized in that the conveying roller is that of a drying rack.
13. Utilisation selon l'une des revendications d'utilisation précédentes, caractérisé en ce que le rouleau est nettoyé en cours de fonctionnement de convoyage de verre.13. Use according to one of the preceding use claims, characterized in that the roller is cleaned during glass conveying operation.
14. Utilisation selon l'une des revendications d'utilisation précédentes, caractérisé en ce que le dispositif élimine un dépôt de sulfate de sodium. 14. Use according to one of the preceding use claims, characterized in that the device eliminates a deposit of sodium sulfate.
EP05717654A 2004-01-07 2005-01-06 Device for cleaning rollers Withdrawn EP1703997A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0400085A FR2864796B1 (en) 2004-01-07 2004-01-07 DEVICE FOR CLEANING ROLLS
PCT/FR2005/050007 WO2005070568A1 (en) 2004-01-07 2005-01-06 Device for cleaning rollers

Publications (1)

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EP1703997A1 true EP1703997A1 (en) 2006-09-27

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US (1) US20090025752A1 (en)
EP (1) EP1703997A1 (en)
JP (1) JP2007517653A (en)
BR (1) BRPI0506709A (en)
FR (1) FR2864796B1 (en)
WO (1) WO2005070568A1 (en)

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Also Published As

Publication number Publication date
WO2005070568A1 (en) 2005-08-04
US20090025752A1 (en) 2009-01-29
JP2007517653A (en) 2007-07-05
FR2864796A1 (en) 2005-07-08
BRPI0506709A (en) 2007-05-02
FR2864796B1 (en) 2006-02-10

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