EP0558447A1 - Method and apparatus for the injection of a product in a tobacco rod - Google Patents

Method and apparatus for the injection of a product in a tobacco rod Download PDF

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Publication number
EP0558447A1
EP0558447A1 EP93810092A EP93810092A EP0558447A1 EP 0558447 A1 EP0558447 A1 EP 0558447A1 EP 93810092 A EP93810092 A EP 93810092A EP 93810092 A EP93810092 A EP 93810092A EP 0558447 A1 EP0558447 A1 EP 0558447A1
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EP
European Patent Office
Prior art keywords
product
rod
injection
cigarette
tobacco
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Withdrawn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
EP93810092A
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German (de)
French (fr)
Inventor
Maurice Bettinelli
Nicolas Anton
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.)
Philip Morris Products SA
Original Assignee
Fabriques de Tabac Reunies 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 Fabriques de Tabac Reunies SA filed Critical Fabriques de Tabac Reunies SA
Publication of EP0558447A1 publication Critical patent/EP0558447A1/en
Withdrawn legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24C—MACHINES FOR MAKING CIGARS OR CIGARETTES
    • A24C5/00—Making cigarettes; Making tipping materials for, or attaching filters or mouthpieces to, cigars or cigarettes
    • A24C5/14—Machines of the continuous-rod type
    • A24C5/18—Forming the rod
    • A24C5/1892—Forming the rod with additives, e.g. binding agent, flavorants

Definitions

  • the present invention relates to a method and a device for injecting or introducing a product, inside a rod of tobacco during the manufacture of cigarettes, as well as a cigarette containing said product.
  • the method and the device according to the invention make it possible to inject or introduce a suitable product into the tobacco rod, in order to regularize the taste of each puff of smoke, by reducing the intensity of the taste of certain puffs, respectively increasing the taste of other puffs.
  • the desired effect must generally vary depending on the portion of cigarette being burned, it is not possible to provide a product, in liquid, gaseous or pulverulent form, which would be added to the tobacco in bulk, whereas the cigarette is not yet formed; indeed in this case the effect of the product on the taste of tobacco would be uniform throughout the cigarette.
  • the addition of the complementary product when the tobacco is in bulk would increase the consumption of said product, a certain amount of this product evaporating during the preparation of the tobacco rod and / or being deposited on the walls of the elements of the machine in contact with tobacco, which requires a complete cleaning of these machine elements when one wants to switch from one complementary product to another or when one wants to move from a production with complementary product to a production without complementary product.
  • the object of the invention is therefore to provide a method and a device for injecting an additive inside a tobacco rod on a cigarette manufacturing machine not encountering the drawbacks of the methods and devices of l prior art.
  • the method and the device according to the invention must therefore make it possible to inject an additive to an already formed tobacco rod, the quantity of product injected must be able to be easily regulated, the product must be able to be injected intermittently, either on a determined part of the length of a cigarette while the other part of the length of the cigarette must not contain any, as well as it must also be able to be injected over the entire length of the cigarette, the product must be injected in such a way that no part or only a minimal part of the machine is in contact with impregnated tobacco and finally the product must be able to be injected so that its transverse concentration in the rod is as regular as possible, all without damaging the already formed tobacco rod.
  • the product injected into the tobacco rod can be in different forms, it can be a liquid, injected in liquid
  • the method and the device allowing the application of said method must therefore act directly on the already formed tobacco rod before it is surrounded by the strip of paper which must contain it. More precisely, the device will therefore be placed just after the rod has been shaped under the guide finger along the transfer beam and before the paper tape comes to completely surround it.
  • the method and the device according to the invention must also be able to be used to introduce inside the tobacco rod a solid and flexible product, being in the form of a continuous segment of small diameter, clearly smaller than that of the rod tobacco, said segment possibly being solid or consisting of a hollow tube possibly containing another product.
  • the composition of the snake, combined with that of the possible content of its hollow part allows, when burning the cigarette, to give the desired taste to the puffs of smoke.
  • the method according to the invention comprises the characteristics mentioned in claims 1 to 5, while the device which results from it meets the characteristics of claims 6 to 15.
  • a cigarette containing said product is defined by claims 16 at 18.
  • FIG. 1 a portion of a machine for making cigarettes 1, which we see the downstream end of the beam 10 having the porous strip 11 against which the tobacco strands 12 have come to agglomerate by suction and which transports them in the direction indicated by the arrow.
  • the tobacco rod 12A circulates in the semi-circular groove 13A of the guide table 13 (shown here in longitudinal section), driven by the paper tape 14, itself driven by a strip drive format 15 which runs longitudinally in the semi-circular groove 13A of the table guide 13.
  • the guide finger 16 is disposed directly above the semi-circular groove 13A of the guide table 13, its upstream end being placed immediately at the exit of the beam 10, it has on its underside a guide groove whose shape passes continuously from a semi-square shape to a semi-circular shape, thus giving the circular shape to the upper portion of the flange 12A.
  • the drive format band 15 as well as the paper tape 14 have progressively passed from a flat spread shape to a U shape given by the semicircular shape of the groove 13A.
  • the tobacco rod 12A is therefore of approximately circular shape, the paper ribbon 14 surrounding its lower portion, the two lateral edges of the ribbon extending vertically above the tobacco rod 12A.
  • one of said lateral edges is folded over the flange by a part of the machine not shown in the figure, while the internal face of the other edge receives a line of gluing by the gluing device shown schematically in 17 before being folded over the first side edge to completely enclose the tobacco rod.
  • the machine portion as well as the operations which have just been briefly described are known from the prior art having been abundantly described in application CH 292 / 91-9; they are therefore not part of the present invention.
  • a later part of the machine, shown diagrammatically by part 18, is responsible for cutting the tobacco rod wrapped in its paper 12B in order to form the individual cigarettes 12C which are then taken to a next portion of the machine by means not shown in the figure.
  • the device 2 for injecting a product into the inside of the tobacco rod 12A is disposed in the small space separating the end of the downstream portion of the guide finger 16 and the device responsible for folding the first longitudinal edge of the paper strip 14, respectively the sizing device 17.
  • the injection device mainly consists of an injection nozzle 20, held in place by a support 21, connected by a suitable pipe 22 to a pumping device 23 supplied by a reservoir 24.
  • the support 21 is maintained on the guide plate 13 by fastening means 21A known in the art which also allow the position of said support to be adjusted both longitudinally and transversely. As can be seen in FIG.
  • the support 21 comprises a longitudinal cavity 21B on its lower part, in order to allow free passage of the tobacco rod 12A as well as of the drive format strip 15 and the paper strip 14, both formed in a U as explained previously.
  • the support 21 also includes a hole 21C connecting the upper face of the support to the cavity 21B, preferably arranged in the center of the support, the hole 21C preferably being inclined forward in the longitudinal direction, as seen in the figure 1.
  • the injection nozzle 20 mainly consists of a portion of pipe, the outside diameter of which is less than the diameter of the hole 21C in order to be able to slide inside said hole so that the position of the outlet end 20A of the pipe portion 20 can be adjusted inside the tube 12A.
  • Clamping means on the support 21 make it possible to hold the portion of pipe 20, respectively its end 20A in position.
  • the tobacco strands are separated by the presence of the end of the injection nozzle 20 immersed in the rod 12A, thereby creating an empty space downstream from the outlet end 20A of the nozzle 20.
  • a device 23 is responsible for pumping the liquid into a reservoir 24, dosing it and injecting it inside the tube 12A, respectively into the empty space created as indicated above, via the line 22, preferably a flexible line, connected to the rear end of the nozzle 20.
  • a control link 25 is established between the cutting device 18 and the metering device 23 in order to sequentially control the injection of product inside the tube 12A.
  • the paper cover 14 is applied to the rest of the periphery of the rod, tightening the latter and thus closing the empty space created previously.
  • the control link 25 is not actuated by the cutting device 18, but by any other device capable of giving a sequential command.
  • the outlet end 20A of the nozzle 20 is positioned so as to be in the center of the flange 12A (see also FIG.
  • FIGS. 3A and 3B show two embodiments of the end 20A of the nozzle 20, a bend being able to be placed on the nozzle 20 so that the product leaves the end 20A in the same direction as the flow of tobacco.
  • the introduction of the latter inside the tobacco rod which has just been formed does very little to disturb the arrangement of the tobacco; this effect is further improved by installing this device just before the side edges of the sheet of paper 14 are folded over the flange 12A in order to completely enclose it.
  • the pipe 22 fixed as above to a support similar to the support 21 seen above, is not connected to an injection device, but its upstream end remains free so that the solid product 26, presenting itself preferably in the form of a segment from a coil 27, can be introduced into the central channel of said pipe.
  • the product segment 26 comes out through the end 20A disposed inside the tobacco rod 12A as before. Since the tobacco rod 12A is in motion, it drives the product segment 26 in its advance; so that the product segment 26 is driven without resistance, it is necessary that the friction inside the pipe 22 as well as that of any guide pulleys as well as that coming from the unwinding of the reel 27.
  • the product segment 26 will have a relatively small diameter, since it must be able to slide freely at the inside the pipeline 22.
  • the central part of the product segment 26 may be hollow in order to possibly contain yet another additive.
  • the method and the device according to the invention it is possible to inject a product in liquid, gaseous, pasty, pulverulent form or in the form of a gel or to introduce a product in solid form inside a cigarette rod. Except in the case where the product is introduced in solid form, it is possible to measure the quantity of product according to the longitudinal direction of the cigarette. In this way, the taste, respectively the taste amplitude of the smoke can be adjusted.
  • the use of the method and of the device according to the invention only dirty a single part of the machine if necessary, which it is very easy to change or clean when it is desired to change the manufacturing recipe.

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  • Manufacturing Of Cigar And Cigarette Tobacco (AREA)

Abstract

The method and device for injecting or introducing, according to the invention, make it possible to inject or to introduce a product into a cigarette rod (12A). In this manner it is possible to modify the flavour, respectively increasing it or reducing it, of the smoke during the combustion of the cigarette. In order that the injected product can be precisely metered, its injection takes place when the tobacco rod is formed, just before it is completely surrounded by its paper wrapper (14). A support (21) enables the position of the injection nozzle (20) to be regulated in order for the aperture (20A) thereof to penetrate to the interior of the rod and create an empty space in the centre of the rod, the product then being injected into this empty space. The injected product may be in the form of a liquid, vaporised or not, in the form of a gel, a paste or a powder. According to one embodiment, the introduced product may also be in the form of a segmented solid product (26). <IMAGE>

Description

La présente invention concerne un procédé et un dispositif permettant d'injecter ou introduire un produit, à l'intérieur d'un boudin de tabac lors de la fabrication de cigarettes ainsi qu'une cigarette contenant ledit produit.The present invention relates to a method and a device for injecting or introducing a product, inside a rod of tobacco during the manufacture of cigarettes, as well as a cigarette containing said product.

Entre le moment où une cigarette est allumée et celui où elle est complètement consumée, le goût de la fumée aspirée par le fumeur varie, augmentant généralement graduellement après chaque bouffée de fumée tirée de la cigarette. Si certains fumeurs apprécient cette augmentation de goût, d'autres préfèrent une cigarette dont le goût de la fumée reste constant tout au long des bouffées successivement tirées.Between the time a cigarette is lit and when it is completely consumed, the taste of the smoke sucked by the smoker varies, generally increasing gradually after each puff of smoke from the cigarette. If some smokers appreciate this increase in taste, others prefer a cigarette whose taste of smoke remains constant throughout the successive puffs.

Pour ceci, le procédé et le dispositif selon l'invention permettent d'injecter ou introduire un produit idoine dans le boudin de tabac, afin de régulariser le goût de chaque bouffée de fumée, en diminuant l'intensité du goût de certaines bouffées, respectivement en augmentant le goût d'autres bouffées.For this, the method and the device according to the invention make it possible to inject or introduce a suitable product into the tobacco rod, in order to regularize the taste of each puff of smoke, by reducing the intensity of the taste of certain puffs, respectively increasing the taste of other puffs.

Vu que l'effet désiré doit généralement varier en fonction de la portion de cigarette en cours de combustion, il n'est pas possible de prévoir un produit, sous forme liquide, gazeuse ou pulvérulente, qui serait ajouté au tabac en vrac, alors que la cigarette n'est pas encore formée; en effet dans ce cas l'effet du produit sur le goût du tabac serait uniforme tout le long de la cigarette. De plus, l'adjonction du produit complémentaire lorsque le tabac est en vrac augmenterait la consommation dudit produit, une certaine quantité de ce produit s'évaporant lors de la préparation du boudin de tabac et/ou se déposant sur les parois des éléments de la machine en contact avec le tabac, ce qui nécessite un nettoyage complet de ces éléments de machine lorsqu'on veut passer d'un produit complémentaire à un autre ou lorsqu'on veut passer d'une production avec produit complémentaire à une production sans produit complémentaire.Since the desired effect must generally vary depending on the portion of cigarette being burned, it is not possible to provide a product, in liquid, gaseous or pulverulent form, which would be added to the tobacco in bulk, whereas the cigarette is not yet formed; indeed in this case the effect of the product on the taste of tobacco would be uniform throughout the cigarette. In addition, the addition of the complementary product when the tobacco is in bulk would increase the consumption of said product, a certain amount of this product evaporating during the preparation of the tobacco rod and / or being deposited on the walls of the elements of the machine in contact with tobacco, which requires a complete cleaning of these machine elements when one wants to switch from one complementary product to another or when one wants to move from a production with complementary product to a production without complementary product.

Divers procédés et dispositifs à cet effet sont déjà connus de l'art antérieur, en particulier le brevet DE-3.821.677 ainsi que la demande EP-A-0.405.929 décrivent des dispositifs d'injection d'un additif disposés directement sous la bande poreuse contre laquelle vient se former le boudin de tabac. Comme expliqué précédemment, l'additif ne peut être exactement dosé, une partie du tabac ayant reçu l'additif étant ultérieurement retirée du boudin lors de l'écrétage pour retourner au stock en vrac, de plus une partie importante de la machine est en contact avec du tabac imprégné ce qui nécessite un nettoyage laborieux entre deux productions différentes. Le brevet US-A-4.409.995 décrit un dispositif permettant d'introduire l'additif sous le doigt de guidage, lors de la mise en forme définitive du boudin. Si dans ce cas là seule une petite portion de la machine est en contact avec du tabac imprégné d'additif, la position de l'embout par lequel le produit est ajouté au boudin est juste à la surface ou directement sous la surface extérieure du boudin, ce qui amène à une mauvaise répartition transversale de l'additif à l'intérieur du boudin.Various methods and devices for this purpose are already known from the prior art, in particular patent DE-3,821,677 as well as patent application EP-A-0.405.929 describe devices for injecting an additive placed directly under the porous strip against which the tobacco rod is formed. As explained previously, the additive cannot be exactly dosed, part of the tobacco having received the additive being subsequently withdrawn from the rod during clipping to return to the bulk stock, moreover a significant part of the machine is in contact with impregnated tobacco which requires laborious cleaning between two different productions. US-A-4,409,995 describes a device for introducing the additive under the guide finger, during the final shaping of the rod. If in this case only a small portion of the machine is in contact with tobacco impregnated with additive, the position of the nozzle through which the product is added to the rod is just on the surface or directly under the external surface of the rod , which leads to a poor transverse distribution of the additive inside the tube.

L'objet de l'invention est donc de proposer un procédé et un dispositif permettant d'injecter un additif à l'intérieur d'un boudin de tabac sur une machine de fabrication de cigarettes ne rencontrant pas les inconvénients des procédés et dispositifs de l'art antérieur. Le procédé et le dispositif selon l'invention doivent donc permettre d'injecter un additif à un boudin de tabac déjà formé, la quantité de produit injecté doit pouvoir être facilement régulée, le produit doit pouvoir être injecté de façon intermittente, soit sur une partie déterminée de la longueur d'une cigarette alors que l'autre partie de la longueur de la cigarette ne doit pas en contenir, de même qu'il doit aussi pouvoir être injecté sur toute la longueur de la cigarette, le produit doit être injecté de telle manière qu'aucune partie ou que seule une partie minime de la machine soit en contact avec du tabac imprégné et enfin le produit doit pouvoir être injecté de manière à ce que sa concentration transversale dans le boudin soit aussi régulière que possible, tout ceci sans que le boudin de tabac déjà formé ne soit endommagé. Le produit injecté dans le boudin de tabac peut se présenter sous des formes différentes, il peut s'agir d'un liquide, injecté sous forme liquide ou sous forme vaporisée, d'un gel, d'une pâte ou d'une poudre.The object of the invention is therefore to provide a method and a device for injecting an additive inside a tobacco rod on a cigarette manufacturing machine not encountering the drawbacks of the methods and devices of l prior art. The method and the device according to the invention must therefore make it possible to inject an additive to an already formed tobacco rod, the quantity of product injected must be able to be easily regulated, the product must be able to be injected intermittently, either on a determined part of the length of a cigarette while the other part of the length of the cigarette must not contain any, as well as it must also be able to be injected over the entire length of the cigarette, the product must be injected in such a way that no part or only a minimal part of the machine is in contact with impregnated tobacco and finally the product must be able to be injected so that its transverse concentration in the rod is as regular as possible, all without damaging the already formed tobacco rod. The product injected into the tobacco rod can be in different forms, it can be a liquid, injected in liquid form or in vaporized form, a gel, a paste or a powder.

Le procédé et le dispositif permettant l'application dudit procédé doivent donc agir directement sur le boudin de tabac déjà formé, avant que celui-ci ne soit entouré de la bande de papier devant le contenir. Plus exactement, le dispositif sera donc placé juste après que le boudin ait été mis en forme sous le doigt de guidage suivant la poutre de transfert et avant que le ruban de papier ne vienne l'entourer complètement.The method and the device allowing the application of said method must therefore act directly on the already formed tobacco rod before it is surrounded by the strip of paper which must contain it. More precisely, the device will therefore be placed just after the rod has been shaped under the guide finger along the transfer beam and before the paper tape comes to completely surround it.

Le procédé et le dispositif selon l'invention doivent aussi pouvoir être utilisés pour introduire à l'intérieur du boudin de tabac un produit solide et souple, se présentant sous la forme d'un segment continu de faible diamètre, nettement inférieur à celui du boudin de tabac, ledit segment pouvant être massif ou constitué d'un tube creux contenant éventuellement un autre produit. La composition du serpent, combinée avec celle de l'éventuel contenu de sa partie creuse permet, lors de la combustion de la cigarette, de donner le goût désiré aux bouffées de fumée.The method and the device according to the invention must also be able to be used to introduce inside the tobacco rod a solid and flexible product, being in the form of a continuous segment of small diameter, clearly smaller than that of the rod tobacco, said segment possibly being solid or consisting of a hollow tube possibly containing another product. The composition of the snake, combined with that of the possible content of its hollow part allows, when burning the cigarette, to give the desired taste to the puffs of smoke.

Afin de répondre au but fixé, le procédé selon l'invention comprend les caractéristiques mentionnées aux revendications 1 à 5, alors que le dispositif qui en découle répond aux caractéristiques des revendications 6 à 15. Une cigarette contenant ledit produit est définie par les revendications 16 à 18.In order to meet the set goal, the method according to the invention comprises the characteristics mentioned in claims 1 to 5, while the device which results from it meets the characteristics of claims 6 to 15. A cigarette containing said product is defined by claims 16 at 18.

L'invention se comprend particulièrement bien à partir du dessin avec les figures où:

  • la figure 1 représente une vue latérale en coupe partielle d'une portion de machine à fabriquer les cigarettes comportant le dispositif selon l'invention,
  • la figure 2 représente une coupe transversale du dispositif prise selon la ligne II-II de la figure 1, et
  • les figures 3A et 3B représentent deux formes d'exécution de l'extrémité d'une buse d'injection.
  • la figure 4 représente une partie du dispositif nécessaire à l'introduction d'un serpent à l'intérieur d'un boudin de tabac.
The invention is particularly well understood from the drawing with the figures where:
  • FIG. 1 represents a side view in partial section of a portion of a machine for manufacturing cigarettes comprising the device according to the invention,
  • FIG. 2 represents a cross section of the device taken along line II-II of FIG. 1, and
  • Figures 3A and 3B show two embodiments of the end of an injection nozzle.
  • Figure 4 shows a part of the device necessary for the introduction of a snake inside a tobacco rod.

On distingue à la figure 1 une portion d'une machine à fabriquer les cigarettes 1, dont on voit l'extrémité aval de la poutre 10 comportant la bande poreuse 11 contre laquelle les brins de tabac 12 sont venus s'agglomérer par aspiration et qui les transporte dans le sens indiqué par la flèche. Après avoir quitté la bande poreuse 11, le boudin de tabac 12A circule dans la gorge semi-circulaire 13A de la table de guidage 13 (représentée ici en coupe longitudinale), entraînée par le ruban de papier 14, lui-même entraîné par une bande format d'entraînement 15 qui circule longitudinalement dans la gorge semi-circulaire 13A de la table de guidage 13. Le doigt de guidage 16 est disposé directement au-dessus de la gorge semi-circulaire 13A de la table de guidage 13, son extrémité amont étant placée immédiatement à la sortie de la poutre 10, il comporte sur sa face inférieure une rainure de guidage dont la forme passe de manière continue d'une forme semi-carrée à une forme semi-circulaire, donnant ainsi la forme circulaire à la portion supérieure du boudin 12A. Durant son passage dans la gorge semi-circulaire 13A, la bande format d'entraînement 15 ainsi que le ruban de papier 14 ont passé progressivement d'une forme étalée à plat à une forme en U donnée par la forme semi-circulaire de la gorge 13A. A la sortie du doigt de guidage 16, le boudin de tabac 12A est donc de forme approximativement circulaire, le ruban de papier 14 entourant sa portion inférieure, les deux bords latéraux du ruban se prolongeant verticalement au dessus du boudin de tabac 12A. Peu après, l'un desdits bords latéraux est rabattu par dessus le boudin par une pièce de la machine non représentée sur la figure, alors que la face interne de l'autre bord reçoit une ligne de collage par le dispositif d'encollement représenté schématiquement en 17 avant d'être rabattue par dessus le premier bord latéral pour enfermer complètement le boudin de tabac. La portion de machine ainsi que les opérations qui viennent d'être brièvement décrites sont connues de l'art antérieur ayant été abondamment décrites dans la demande CH 292/91-9; elle ne font donc pas partie de la présente invention. Une partie ultérieure de la machine, schématisée par la partie 18 est chargée de couper le boudin de tabac enveloppé de son papier 12B afin de former les cigarettes individuelles 12C qui sont ensuite emmenées vers une portion suivante de la machine par des moyens non représentés sur la figure.We distinguish in Figure 1 a portion of a machine for making cigarettes 1, which we see the downstream end of the beam 10 having the porous strip 11 against which the tobacco strands 12 have come to agglomerate by suction and which transports them in the direction indicated by the arrow. After leaving the porous strip 11, the tobacco rod 12A circulates in the semi-circular groove 13A of the guide table 13 (shown here in longitudinal section), driven by the paper tape 14, itself driven by a strip drive format 15 which runs longitudinally in the semi-circular groove 13A of the table guide 13. The guide finger 16 is disposed directly above the semi-circular groove 13A of the guide table 13, its upstream end being placed immediately at the exit of the beam 10, it has on its underside a guide groove whose shape passes continuously from a semi-square shape to a semi-circular shape, thus giving the circular shape to the upper portion of the flange 12A. During its passage in the semicircular groove 13A, the drive format band 15 as well as the paper tape 14 have progressively passed from a flat spread shape to a U shape given by the semicircular shape of the groove 13A. At the outlet of the guide finger 16, the tobacco rod 12A is therefore of approximately circular shape, the paper ribbon 14 surrounding its lower portion, the two lateral edges of the ribbon extending vertically above the tobacco rod 12A. Shortly after, one of said lateral edges is folded over the flange by a part of the machine not shown in the figure, while the internal face of the other edge receives a line of gluing by the gluing device shown schematically in 17 before being folded over the first side edge to completely enclose the tobacco rod. The machine portion as well as the operations which have just been briefly described are known from the prior art having been abundantly described in application CH 292 / 91-9; they are therefore not part of the present invention. A later part of the machine, shown diagrammatically by part 18, is responsible for cutting the tobacco rod wrapped in its paper 12B in order to form the individual cigarettes 12C which are then taken to a next portion of the machine by means not shown in the figure.

Le dispositif 2 d'injection d'un produit à l'intérieur du boudin de tabac 12A est disposé dans le petit espace séparant l'extrémité de la portion aval du doigt de guidage 16 et le dispositif chargé de replier le premier bord longitudinal de la bande de papier 14, respectivement le dispositif d'encollage 17. Le dispositif d'injection est constitué principalement d'une buse d'injection 20, maintenue en place par un support 21, reliée par une canalisation adéquate 22 à un dispositif de pompage 23 alimenté par un réservoir 24. Le support 21 est maintenu sur la plaque de guidage 13 par des moyens de fixation 21A connus de la technique qui permettent en outre un réglage de position dudit support tant longitudinalement que transversalement. Comme on le voit sur la figure 2, le support 21 comprend une cavité longitudinale 21B sur sa partie inférieure, afin de laisser libre le passage du boudin de tabac 12A ainsi que de la bande format d'entraînement 15 et la bande de papier 14, toutes deux formées en U comme expliqué précédemment. Le support 21 comprend aussi un trou 21C reliant la face supérieure du support à la cavité 21B, disposé de préférence au centre du support, le trou 21C étant de préférence incliné vers l'avant dans le sens longitudinal, comme on le voit à la figure 1. La buse d'injection 20 est constituée principalement d'une portion de tuyau, dont le diamètre extérieur est inférieur au diamètre du trou 21C afin de pouvoir coulisser à l'intérieur dudit trou afin que la position de l'extrémité de sortie 20A de la portion de tuyau 20 puisse être ajustée à l'intérieur du boudin 12A. Des moyens de serrage, non représentés, sur le support 21, permettent de maintenir la portion de tuyau 20, respectivement son extrémité 20A en position. Lors de l'avance du boudin 12A, les brins de tabac sont écartés de par la présence de l'extrémité de la buse d'injection 20 plongée dans le boudin 12A, créant de ce fait un espace vide en aval de l'extrémité de sortie 20A de la buse 20. Un dispositif 23 est chargé de pomper le liquide dans un réservoir 24, de le doser et de l'injecter à l'intérieur du boudin 12A, respectivement dans l'espace vide créé comme indiqué plus haut, par l'intermédiaire de la canalisation 22, de préférence une canalisation souple, reliée à l'extrémité arrière de la buse 20. Au cas où il est désiré que la quantité de liquide injecté ne soit pas constante sur la longueur d'une cigarette, une liaison de commande 25 est établie entre le dispositif de coupe 18 et le dispositif de dosage 23 afin de commander séquentiellement l'injection de produit à l'intérieur du boudin 12A. Sitôt après que le produit ait été injecté, la couverture de papier 14 est appliquée sur le reste du pourtour du boudin, resserrant celui-ci et refermant ainsi l'espace vide créé auparavant. En variante, il est aussi possible que la liaison de commande 25 ne soit pas actionnée par le dispositif de coupe 18, mais par n'importe quel autre dispositif apte à donner une commande séquentielle. Comme on le voit plus précisément aux figures 3A et 3B, l'extrémité de sortie 20A de la buse 20 est positionnée de manière à se trouver au centre du boudin 12A (voir aussi la figure 2), afin que le produit injecté soit réparti régulièrement selon la section transversale du boudin. Les figures 3A et 3B représentent deux formes d'exécution de l'extrémité 20A de la buse 20, un coude pouvant être disposé sur la buse 20 afin que le produit sorte de l'extrémité 20A selon la même direction que le flux de tabac.The device 2 for injecting a product into the inside of the tobacco rod 12A is disposed in the small space separating the end of the downstream portion of the guide finger 16 and the device responsible for folding the first longitudinal edge of the paper strip 14, respectively the sizing device 17. The injection device mainly consists of an injection nozzle 20, held in place by a support 21, connected by a suitable pipe 22 to a pumping device 23 supplied by a reservoir 24. The support 21 is maintained on the guide plate 13 by fastening means 21A known in the art which also allow the position of said support to be adjusted both longitudinally and transversely. As can be seen in FIG. 2, the support 21 comprises a longitudinal cavity 21B on its lower part, in order to allow free passage of the tobacco rod 12A as well as of the drive format strip 15 and the paper strip 14, both formed in a U as explained previously. The support 21 also includes a hole 21C connecting the upper face of the support to the cavity 21B, preferably arranged in the center of the support, the hole 21C preferably being inclined forward in the longitudinal direction, as seen in the figure 1. The injection nozzle 20 mainly consists of a portion of pipe, the outside diameter of which is less than the diameter of the hole 21C in order to be able to slide inside said hole so that the position of the outlet end 20A of the pipe portion 20 can be adjusted inside the tube 12A. Clamping means, not shown, on the support 21 make it possible to hold the portion of pipe 20, respectively its end 20A in position. When the rod 12A advances, the tobacco strands are separated by the presence of the end of the injection nozzle 20 immersed in the rod 12A, thereby creating an empty space downstream from the outlet end 20A of the nozzle 20. A device 23 is responsible for pumping the liquid into a reservoir 24, dosing it and injecting it inside the tube 12A, respectively into the empty space created as indicated above, via the line 22, preferably a flexible line, connected to the rear end of the nozzle 20. In case it is desired that the quantity of liquid injected is not constant over the length d 'A cigarette, a control link 25 is established between the cutting device 18 and the metering device 23 in order to sequentially control the injection of product inside the tube 12A. As soon as the product has been injected, the paper cover 14 is applied to the rest of the periphery of the rod, tightening the latter and thus closing the empty space created previously. Alternatively, it is also possible that the control link 25 is not actuated by the cutting device 18, but by any other device capable of giving a sequential command. As seen more precisely in FIGS. 3A and 3B, the outlet end 20A of the nozzle 20 is positioned so as to be in the center of the flange 12A (see also FIG. 2), so that the injected product is distributed evenly according to the cross section of the tube. FIGS. 3A and 3B show two embodiments of the end 20A of the nozzle 20, a bend being able to be placed on the nozzle 20 so that the product leaves the end 20A in the same direction as the flow of tobacco.

Vu le faible diamètre extérieur du tuyau constituant la buse 20, l'introduction de celui-ci à l'intérieur du boudin de tabac qui vient d'être formé ne perturbe que très peu l'arrangement du tabac; cet effet est encore amélioré en installant ce dispositif juste avant que les bords latéraux de la feuille de papier 14 ne soient rabattus sur le boudin 12A afin de l'enfermer complètement. En variante et si nécessaire, il est aussi possible de donner une forme profilée à la portion de la buse pénétrant dans le boudin 12A, afin de diminuer encore le dérangement des brins de tabac.Given the small outside diameter of the pipe constituting the nozzle 20, the introduction of the latter inside the tobacco rod which has just been formed does very little to disturb the arrangement of the tobacco; this effect is further improved by installing this device just before the side edges of the sheet of paper 14 are folded over the flange 12A in order to completely enclose it. As a variant and if necessary, it is also possible to give a profiled shape to the portion of the nozzle penetrating into the tube 12A, in order to further reduce the disturbance of the tobacco strands.

Comme on le voit à la figure 4, il est aussi possible d'introduire un produit sous forme solide à l'intérieur d'un boudin de tabac. Dans ce cas, la canalisation 22, fixée comme précédemment à un support semblable au support 21 vu plus haut, n'est pas reliée à un dispositif d'injection, mais son extrémité amont reste libre afin que le produit solide 26, se présentant de préférence sous forme d'un segment en provenance d'une bobine 27, puisse être introduit dans le canal central de ladite canalisation. Après avoir traversé la canalisation 22, le segment de produit 26 ressort par l'extrémité 20A disposée à l'intérieur du boudin de tabac 12A comme précédemment. Vu que le boudin de tabac 12A est en mouvement, il entraîne le segment de produit 26 dans son avance; afin que le segment de produit 26 soit entraîné sans résistance, il est nécessaire que les frottements à l'intérieur de la canalisation 22 ainsi que ceux des éventuelles poulies de guidage ainsi que ceux provenant du déroulement de la bobine 27 soient minimisés. Il est aussi possible, si nécessaire, de prévoir des moyens auxiliaires d'entraînement du segment de produit 26, disposés en amont de la canalisation 22. le segment de produit 26 aura un diamètre relativement faible, puisqu'il doit pouvoir coulisser librement à l'intérieur de la canalisation 22. Comme indiqué précédemment, la partie centrale du segment de produit 26 peut être creuse afin de contenir éventuellement encore un autre additif.As seen in Figure 4, it is also possible to introduce a product in solid form inside a tobacco rod. In this case, the pipe 22, fixed as above to a support similar to the support 21 seen above, is not connected to an injection device, but its upstream end remains free so that the solid product 26, presenting itself preferably in the form of a segment from a coil 27, can be introduced into the central channel of said pipe. After passing through the pipe 22, the product segment 26 comes out through the end 20A disposed inside the tobacco rod 12A as before. Since the tobacco rod 12A is in motion, it drives the product segment 26 in its advance; so that the product segment 26 is driven without resistance, it is necessary that the friction inside the pipe 22 as well as that of any guide pulleys as well as that coming from the unwinding of the reel 27. It is also possible, if necessary, to provide auxiliary means for driving the product segment 26, arranged upstream of the pipe 22. the product segment 26 will have a relatively small diameter, since it must be able to slide freely at the inside the pipeline 22. As indicated previously, the central part of the product segment 26 may be hollow in order to possibly contain yet another additive.

Ainsi, par le procédé et le dispositif selon l'invention, il est possible d'injecter un produit sous forme liquide, gazeuse, pâteuse, pulvérulente ou sous forme d'un gel ou d'introduire un produit sous forme solide à l'intérieur d'un boudin de cigarette. Sauf dans le cas où le produit est introduit sous forme solide, il est possible de doser la quantité de produit selon le sens longitudinal de la cigarette. De cette manière, le goût, respectivement l'amplitude de goût de la fumée peut être ajusté. L'emploi du procédé et du dispositif selon l'invention ne salit le cas échéant qu'une seule pièce de la machine, qu'il est très facile de changer ou de nettoyer lorsqu'on désire chager de recette de fabrication.Thus, by the method and the device according to the invention, it is possible to inject a product in liquid, gaseous, pasty, pulverulent form or in the form of a gel or to introduce a product in solid form inside a cigarette rod. Except in the case where the product is introduced in solid form, it is possible to measure the quantity of product according to the longitudinal direction of the cigarette. In this way, the taste, respectively the taste amplitude of the smoke can be adjusted. The use of the method and of the device according to the invention only dirty a single part of the machine if necessary, which it is very easy to change or clean when it is desired to change the manufacturing recipe.

Claims (18)

1-Procédé de fabrication d'un boudin de tabac (12A) sur une machine de fabrication de cigarettes (1), caractérisé en ce qu'un produit est injecté ou introduit dans ledit boudin après que le boudin ait été formé et avant qu'une couverture de papier (14) ne recouvre complètement le boudin. 1- Method for manufacturing a tobacco rod (12A) on a cigarette manufacturing machine (1), characterized in that a product is injected or introduced into said rod after the rod has been formed and before a paper cover (14) does not completely cover the tube. 2-Procédé selon la revendication 1, caractérisé en ce qu'un espace vide de tabac est aménagé dans ledit boudin avant d'y injecter ou introduire ledit produit. 2- Method according to claim 1, characterized in that an empty space of tobacco is arranged in said rod before injecting or introducing said product. 3-Procédé selon la revendication 2, caractérisé en ce que l'injection ou l'introduction dudit produit est faite durant l'avance du boudin. 3- A method according to claim 2, characterized in that the injection or introduction of said product is made during the advance of the rod. 4-Procédé selon la revendication 3, caractérisé en ce que l'injection ou l'introduction dudit produit est continue. 4- A method according to claim 3, characterized in that the injection or introduction of said product is continuous. 5-Procédé selon la revendication 3, caractérisé en ce que l'injection dudit produit est intermittente. 5- Method according to claim 3, characterized in that the injection of said product is intermittent. 6-Dispositif d'injection ou d'introduction d'un produit dans un boudin de tabac pour l'application du procédé selon l'une des revendications précédentes, caractérisé en ce qu'il comprend une portion de support (21) fixée de manière réglable (21A) sur la machine de fabrication de cigarettes, supportant de manière coulissante une buse d'injection ou d'introduction (20) dont l'extrémité (20A) pénètre à l'intérieur du boudin. 6- Device for injecting or introducing a product into a tobacco rod for the application of the method according to one of the preceding claims, characterized in that it comprises a support portion (21) fixed so adjustable (21A) on the cigarette making machine, slidingly supporting an injection or introduction nozzle (20) whose end (20A) penetrates inside the tube. 7-Dispositif selon la revendication 6, caractérisé en ce que la portion amont de ladite partie de la buse d'injection ou d'introduction qui pénètre à l'intérieur du boudin est agencée de manière à écarter les brins de tabac et à former un espace vide de tabac. 7- Device according to claim 6, characterized in that the upstream portion of said part of the injection or introduction nozzle which penetrates inside the rod is arranged so as to separate the tobacco strands and to form a tobacco empty space. 8-Dispositif selon la revendication 7, caractérisé en ce que la position de l'ouverture d'injection ou d'introduction de la buse d'injection ou d'introduction est réglée de manière à être située en une position proche du centre de la section transversale du boudin. 8- Device according to claim 7, characterized in that the position of the injection or introduction opening of the injection or introduction nozzle is adjusted so as to be located in a position close to the center of the cross section of the rod. 9-Dispositif selon la revendication 8, caractérisé en ce que l'extrémité de la buse d'injection ou d'introduction qui pénètre à l'intérieur du boudin est rectiligne. 9- Device according to claim 8, characterized in that the end of the injection or introduction nozzle which penetrates inside the tube is straight. 10-Dispositif selon la revendication 8, caractérisé en ce que l'extrémité de la buse d'injection ou d'introduction qui pénètre à l'intérieur du boudin est coudée. 10- Device according to claim 8, characterized in that the end of the injection or introduction nozzle which penetrates inside the tube is bent. 11-Dispositif selon l'une des revendications 6 à 10, caractérisé en ce que ledit produit injecté est un liquide sous forme liquide ou vaporisée ou une pâte ou un gel ou une poudre. 11- Device according to one of claims 6 to 10, characterized in that said injected product is a liquid in liquid or vaporized form or a paste or a gel or a powder. 12-Dispositif selon la revendication 11, caractérisé en ce qu'il comprend des moyens de dosage (23) de la quantité de produit injecté. 12- Device according to claim 11, characterized in that it comprises metering means (23) of the amount of product injected. 13-Dispositif selon la revendication 12, caractérisé en ce qu'il comprend des moyens de commande (25) intermittente desdits moyens de dosage. 13- Device according to claim 12, characterized in that it comprises intermittent control means (25) of said metering means. 14-Dispositif selon l'une des revendications 6 à 10, caractérisé en ce que ledit produit introduit (26) est un solide. 14- Device according to one of claims 6 to 10, characterized in that said introduced product (26) is a solid. 15-Machine à fabriquer les cigarettes (1) équipée d'un dispositif (2) selon l'une des revendications 6 à 14, caractérisée en ce que ledit dispositif est disposé entre l'extrémité de la partie aval du doigt de guidage (16) et le dispositif chargé de replier le premier bord longitudinal du papier de cigarette. 15- Cigarette making machine (1) equipped with a device (2) according to one of claims 6 to 14, characterized in that said device is disposed between the end of the downstream part of the guide finger (16 ) and the device responsible for folding the first longitudinal edge of the cigarette paper. 16-Cigarette (12C), constituée notamment d'un boudin de tabac (12B) de forme généralement cylindrique, enveloppé d'une feuille de couverture de papier (14), caractérisée en ce que ledit boudin contient un produit sur tout ou partie de sa longueur, qui y a été introduit à proximité de l'axe longitudinal dudit boudin. 16- Cigarette (12C), consisting in particular of a tobacco rod (12B) of generally cylindrical shape, wrapped in a sheet of paper covering (14), characterized in that said rod contains a product on all or part of its length, which has been introduced therein near the longitudinal axis of said rod. 17-Cigarette selon la revendication 16, caractérisée en ce que ledit produit est un liquide, sous forme liquide ou vaporisée, ou une pâte ou un gel ou une poudre. 17- Cigarette according to claim 16, characterized in that said product is a liquid, in liquid or vaporized form, or a paste or a gel or a powder. 18-Cigarette selon la revendication 16, caractérisée en ce que ledit produit est un solide (26). 18- Cigarette according to claim 16, characterized in that said product is a solid (26).
EP93810092A 1992-02-27 1993-02-17 Method and apparatus for the injection of a product in a tobacco rod Withdrawn EP0558447A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH607/92 1992-02-27
CH60792 1992-02-27

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WO1998036650A1 (en) * 1997-02-18 1998-08-27 British American Tobacco (Investments) Limited Incorporating smoke-modifying agents in smoking material rods
WO2000008959A1 (en) * 1998-08-14 2000-02-24 British American Tobacco (Investments) Limited Incorporation of smoke-modifying agents in smoking material rods
WO2005096851A1 (en) * 2004-04-07 2005-10-20 Hauni Maschinenbau Ag Method for producing a smokable article
WO2007085830A2 (en) * 2006-01-27 2007-08-02 British American Tobacco (Investments) Limited Method of preparing a rod for use in the preparation of a smoking article
WO2008098815A1 (en) * 2007-02-13 2008-08-21 British American Tobacco (Investments) Limited A method and apparatus for the manufacture of smoking articles
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WO2011033121A1 (en) * 2009-09-21 2011-03-24 British American Tobacco (Investments) Limited Method and apparatus for introducing objects into tobacco industry product rod material
EP2448436A1 (en) 2009-07-03 2012-05-09 Hauni Maschinenbau AG Duct wall of a rod-conveying device of a machine of the tobacco processing industry
CN101410028B (en) * 2006-01-27 2012-08-22 英美烟草(投资)有限公司 Method of preparing a rod for use in the preparation of a smoking article
RU2526014C2 (en) * 2008-09-16 2014-08-20 Бритиш Америкэн Тобэкко (Инвестментс) Лимитед Smoking product filter
JP2018515113A (en) * 2015-05-21 2018-06-14 フィリップ・モーリス・プロダクツ・ソシエテ・アノニム Induction heating tobacco rod manufacturing method
EP3297459B1 (en) 2015-05-21 2019-07-03 Philip Morris Products S.a.s. Method for manufacturing inductively heatable tobacco rods
WO2020127120A3 (en) * 2018-12-17 2020-08-06 Philip Morris Products S.A. System, apparatus and method of manufacturing a tubular element for use with an aerosol generating article
WO2023166478A1 (en) * 2022-03-04 2023-09-07 International Tobacco Machinery Poland Sp. Z O.O. Apparatus and method for manufacturing rods of tobacco industry

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WO1998036650A1 (en) * 1997-02-18 1998-08-27 British American Tobacco (Investments) Limited Incorporating smoke-modifying agents in smoking material rods
US6273093B1 (en) 1997-02-18 2001-08-14 British American Tobacco (Investments) Limited Incorporating smoke-modifying agents in smoking material rods
WO2000008959A1 (en) * 1998-08-14 2000-02-24 British American Tobacco (Investments) Limited Incorporation of smoke-modifying agents in smoking material rods
AU743260B2 (en) * 1998-08-14 2002-01-24 British-American Tobacco (Investments) Limited Incorporation of smoke-modifying agents in smoking material rods
AU743260C (en) * 1998-08-14 2002-10-10 British-American Tobacco (Investments) Limited Incorporation of smoke-modifying agents in smoking material rods
US6701935B1 (en) 1998-08-14 2004-03-09 British American Tobacco (Investments) Ltd Incorporation of smoke-modifying agents in smoking material rods
WO2005096851A1 (en) * 2004-04-07 2005-10-20 Hauni Maschinenbau Ag Method for producing a smokable article
WO2007085830A2 (en) * 2006-01-27 2007-08-02 British American Tobacco (Investments) Limited Method of preparing a rod for use in the preparation of a smoking article
WO2007085830A3 (en) * 2006-01-27 2007-09-27 British American Tobacco Co Method of preparing a rod for use in the preparation of a smoking article
US8381736B2 (en) 2006-01-27 2013-02-26 British America Tobacco (Investments) Limited Method of preparing a rod for use in the preparation of a smoking article
CN101410028B (en) * 2006-01-27 2012-08-22 英美烟草(投资)有限公司 Method of preparing a rod for use in the preparation of a smoking article
RU2450778C2 (en) * 2007-02-13 2012-05-20 Бритиш Америкэн Тобэкко (Инвестментс) Лимитед Smoking product production method and device
WO2008098815A1 (en) * 2007-02-13 2008-08-21 British American Tobacco (Investments) Limited A method and apparatus for the manufacture of smoking articles
WO2009013082A1 (en) * 2007-07-25 2009-01-29 British American Tobacco (Investments) Limited Apparatus and method for forming a rod for a smoking article
CN101969796A (en) * 2007-07-25 2011-02-09 英美烟草(投资)有限公司 Apparatus and method for forming a rod for a smoking article
RU2526014C2 (en) * 2008-09-16 2014-08-20 Бритиш Америкэн Тобэкко (Инвестментс) Лимитед Smoking product filter
EP2448436B1 (en) * 2009-07-03 2016-11-23 Hauni Maschinenbau GmbH Conduit cheek for a rod making device of the tobacco processing industry
CN102469832A (en) * 2009-07-03 2012-05-23 豪尼机械制造股份公司 Duct wall of a rod-conveying device of a machine of the tobacco processing industry
EP2448436A1 (en) 2009-07-03 2012-05-09 Hauni Maschinenbau AG Duct wall of a rod-conveying device of a machine of the tobacco processing industry
CN102469832B (en) * 2009-07-03 2015-04-29 豪尼机械制造股份公司 Duct wall of a rod-conveying device of a machine of the tobacco processing industry
WO2011033121A1 (en) * 2009-09-21 2011-03-24 British American Tobacco (Investments) Limited Method and apparatus for introducing objects into tobacco industry product rod material
EP3297458B1 (en) 2015-05-21 2019-07-03 Philip Morris Products S.a.s. Method for manufacturing inductively heatable tobacco rods
EP3297459B1 (en) 2015-05-21 2019-07-03 Philip Morris Products S.a.s. Method for manufacturing inductively heatable tobacco rods
JP2018515113A (en) * 2015-05-21 2018-06-14 フィリップ・モーリス・プロダクツ・ソシエテ・アノニム Induction heating tobacco rod manufacturing method
EP3297458B2 (en) † 2015-05-21 2024-02-14 Philip Morris Products S.A. Method for manufacturing inductively heatable tobacco rods
WO2020127120A3 (en) * 2018-12-17 2020-08-06 Philip Morris Products S.A. System, apparatus and method of manufacturing a tubular element for use with an aerosol generating article
CN113226086A (en) * 2018-12-17 2021-08-06 菲利普莫里斯生产公司 System, apparatus and method for manufacturing a tubular element for use with an aerosol-generating article
JP2022510624A (en) * 2018-12-17 2022-01-27 フィリップ・モーリス・プロダクツ・ソシエテ・アノニム Systems, equipment, and methods for manufacturing tubular elements for use in aerosol-generating articles.
US20220022523A1 (en) * 2018-12-17 2022-01-27 Philip Morris Products S.A. System, apparatus and method of manufacturing a tubular element for use with an aerosol generating article
US12059022B2 (en) 2018-12-17 2024-08-13 Philip Morris Products S.A. System, apparatus and method of manufacturing a tubular element for use with an aerosol generating article
WO2023166478A1 (en) * 2022-03-04 2023-09-07 International Tobacco Machinery Poland Sp. Z O.O. Apparatus and method for manufacturing rods of tobacco industry

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