EP0501909A1 - Device and process for applying adhesive to a web - Google Patents

Device and process for applying adhesive to a web Download PDF

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Publication number
EP0501909A1
EP0501909A1 EP92810052A EP92810052A EP0501909A1 EP 0501909 A1 EP0501909 A1 EP 0501909A1 EP 92810052 A EP92810052 A EP 92810052A EP 92810052 A EP92810052 A EP 92810052A EP 0501909 A1 EP0501909 A1 EP 0501909A1
Authority
EP
European Patent Office
Prior art keywords
glue
roller
sizing
sizing roller
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.)
Granted
Application number
EP92810052A
Other languages
German (de)
French (fr)
Other versions
EP0501909B1 (en
Inventor
Bernard Tallier
David Vuillemier
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 EP0501909A1 publication Critical patent/EP0501909A1/en
Application granted granted Critical
Publication of EP0501909B1 publication Critical patent/EP0501909B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C1/00—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating
    • B05C1/04—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length
    • B05C1/08—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line
    • B05C1/086—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line a pool of coating material being formed between a roller, e.g. a dosing roller and an element cooperating therewith
    • B05C1/0865—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line a pool of coating material being formed between a roller, e.g. a dosing roller and an element cooperating therewith the cooperating element being a roller, e.g. a coating roller
    • 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
    • A24C5/24—Pasting the seam
    • 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
    • A24C5/47—Attaching filters or mouthpieces to cigars or cigarettes, e.g. inserting filters into cigarettes or their mouthpieces
    • A24C5/471—Attaching filters or mouthpieces to cigars or cigarettes, e.g. inserting filters into cigarettes or their mouthpieces by means of a connecting band
    • A24C5/472—Applying adhesives to the connecting band
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C1/00—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating
    • B05C1/04—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length
    • B05C1/08—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line
    • B05C1/0826—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line the work being a web or sheets
    • B05C1/0834—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line the work being a web or sheets the coating roller co-operating with other rollers, e.g. dosing, transfer rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C1/00—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating
    • B05C1/04—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length
    • B05C1/16—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length only at particular parts of the work
    • B05C1/165—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length only at particular parts of the work using a roller or other rotating member which contacts the work along a generating line
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S101/00—Printing
    • Y10S101/45—Sensor for ink or dampening fluid thickness or density
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S118/00—Coating apparatus
    • Y10S118/15—Roller structure

Definitions

  • the present invention relates to a device for sizing a paper tape, in particular a paper tape intended to cover cigarette filters.
  • Such devices are known in the art; they generally consist of a plurality of rotating rollers, generally two, the first of which dips in a tank of semi-liquid glue driving it in order to form a flange just before the place where the two rollers are in contact by one of their generator, the glue necessary for gluing a strip of paper flowing while being in contact pressed against the second roll, being taken from said flange by said second roll and brought against the paper tape.
  • the first roll will include several zones, those of them corresponding to the surfaces of the paper tape not to be glued being absolutely smooth and / or coated with a coating which does not allow the glue to adhere to it, whereas those corresponding to the surfaces to be glued have a surface condition such that glue can adhere to it, the glue is then taken from the flange and transmitted to the second roller so that it is transported by the latter on the corresponding surfaces to be glued from paper tape.
  • a large and constant pressure must be ensured between the two rollers so that the glue is properly transferred from the gluing areas of the first roller to the outer surface of the second roller.
  • the major drawback of such a device according to the prior art lies in the fact that the quality and the quantity of glue supplying the rod is not controlled, which can lead to poor quality of the gluing of the paper tape.
  • the glue supply of the sausage is made continuously by the first roller while the second roller takes only part of the glue contained in the sausage to bring it against the tape; it follows that the excess glue escapes through the ends of the lower roller and falls back into the tank. It is the same when the transport of the paper tape is interrupted for any reason while the rollers continue to rotate in order to continue the mixing of the glue in the tray and to avoid drying out of the existing flange, while the tape of paper no longer removes glue from the second roll.
  • the quality of the glue in the tank is inhomogeneous, consisting of glue coming directly from the glue supply and of glue having already passed through the flange.
  • the adhesive contained in the flange is degraded by rolling the flange between the two rollers.
  • the glue in the tank may tend to dry out or may receive dirt and debris from the rest of the machine. The combination of these various causes generates an unsatisfactory sizing of the paper tape.
  • the device according to the invention has the elements having the characteristics mentioned in the characterizing parts of the claims.
  • the gluing device according to the invention is now described from the appended drawing comprising a single figure representing a schematic perspective view of an embodiment of a device sizing according to the invention.
  • the roller system 1 is composed of a first roller 10, of circular cylindrical shape, driven in rotation in the direction indicated by the arrow by means represented by 11, and of a second roller 12 of circular shape, driven in rotation in the direction indicated by the arrow by means represented by 13.
  • the second roller 12 comprises a central cylindrical part 14 and two parts 15a and 15b located at the ends of the roller 12 and having a reduction in diameter relative to the diameter of the cylindrical part central 14.
  • the two parts 15a and 15b are in the form of a truncated cone tapering towards the ends or else they may consist of two cylindrical bearing surfaces having a diameter less than that of the central part 14.
  • the length of the cylindrical part 14 of the second roller 12 is less than the length of the first roller 10 and at least equal to the width of the paper tape 2.
  • the paper tape 2 of which one or more zones of the underside 20 are to be glued circulates, on this portion of machine, between two rollers 21 and 22.
  • the position of the axis of rotation of the roller 21 is fixed, while the axis of rotation of the roller 22 is mounted on a slide (not shown) and can be moved along said slide by the actuating means 23 which can be a cam device or a piston device, of known technique.
  • the drive means 11 and 13 of the rollers 10 and 12 drive the said rollers at speeds such that the contact of one roller on the other takes place without sliding, these drive means 11 and 13 being regulated so that the ribbon 2 passes over the roller 12 without sliding.
  • the drive means 11 and 13 consist of toothed wheels, driven by the general drive means of the machine (not shown).
  • the rotational speeds of the two rollers 10 and 12 are proportional to each other and with the speed of the machine, the ratio of the number of teeth between the toothed wheels driving the rollers being chosen so that the two rollers roll one on the other. other without sliding.
  • Auxiliary drive means are used when the speed of the machine is less than a certain value, as indicated below.
  • the glue supply means 3 intended for making the glue strip 30, firstly comprise a storage tank (not shown) supplying one or more distribution pipes, preferably by one or more suitable pumps (not shown). two distribution pipes 31a and 31b as shown in the figure. In order to ensure a constant quality of the adhesive, it is checked during its passage through said pipes, more precisely the viscosity of the adhesive is measured or compared to a reference value, by the devices represented by 32a and 32b. Flow control valves 33a and 33b are arranged near the glue distribution nozzles 34a and 34b which each project a fine jet of glue 35a and 35b, in order to supply the glue rod 30.
  • One or more sets of cells proximity measurement preferably photocells infrared radiation are arranged in suitable places, for example near the glue dispensing nozzles 34a and 34b, as shown in 36a and 36b, in order to measure one of the characteristic dimensions of the rod 30, for example its transverse dimension.
  • the cell or cells 36a and 36b are proximity transmitter-receiver cells.
  • the cells can be placed near the ends of the rod in order to control the length.
  • the gluing device is completed with a water supply device 4, composed of one or more water spray nozzles, only one of which is shown at 40.
  • This spray nozzle is preceded by a control valve 41 and projects a narrow but relatively elongated jet in the direction of the axis of rotation of the roller 10, as shown at 42, approximately radially to the first roller 10, on a section portion of the roller 10, situated slightly before that comprising the flange 30.
  • the sizing device is completed an electronic control circuit 5.
  • the operation of the gluing device will now be described in all its functionality.
  • the correct functioning of the cigarette machine that is to say a movement of the strip of paper 2 to be glued is detected by the detector shown diagrammatically at 24 which can be of any type, for example an encoder disc placed on the roller 21 of paper tape drive.
  • the detector 24 sends a signal indicating the unwinding of the strip of paper 2 as well as the speed of unwinding of said strip, to the electronic control circuit 5. From the speed signal coming from the detector 24, and when the running speed of the strip of paper 2 is sufficient, the electronic control circuit 5 controls the actuating means 23 in order to advance the roller 22 and to press the underside 20 of the paper strip 2 against a portion of the surface of the central part 14 of the roller 12.
  • the electronic circuit 5 controls the engagement of the toothed wheels for driving the rollers 10 and 12 so that each of these is driven at a speed proportional to the speed of driving the paper tape 2. Then the control circuit 5 controls the opening of the control valves 33a and 33b so that the glue jets 35a and 35b can feed the flange 30. The glue necessary for gluing the underside Erieure 20 of the paper tape 2 is taken from said flange by the second roller 12.
  • the figure represents the case where it is not necessary that the entire surface 20 is glued but only a certain number of zones 20a, while the rest of the surface 20b, corresponding for example to the regions of the paper on which the ventilation holes of the filter are arranged as well as to the places where a cutting blade responsible for separating the cigarettes will pass, does not receive any glue.
  • the surface condition of the portions 10a of the cylindrical surface of the roller 10 is such that glue can adhere to it and be removed from the flange 30 in order to be transmitted to portions 14a of the central part 14 of the roller 12 to be able to glue the zones 20a of the paper tape 2.
  • the surface condition of the portions 10b of the cylindrical surface of the roll 10, arranged between the portions 10a, is such that the sausage glue 30 cannot adhere to it, which leaves the portions 14b of the central part 14 of the roll 12 free of glue and consequently the zones 20b of the paper tape 2.
  • the surface portions 10b are extremely smooth and / or covered with a coating preventing the glue from adhering to it.
  • the flange 30 is therefore supplied with glue on one side by the jets 35a and 35b coming from the nozzles 34a and 34b and on the other side of the glue is extracted therefrom by the tracks 10a of the first sizing roller 10 to be transmitted to the zones 20a of the lower surface 20 of the tape 2, via the portions 14a of the second sizing roller 12.
  • said strand is continuously kneaded by the rollers 10 and 12 so that the glue coming from the nozzles 34a and 34b extends well over the entire length of the cylindrical portion 14 of the second roller 12 so that the surface portions 14a disposed at the ends of said cylindrical portion are suitably supplied with adhesive.
  • the flange is too large and that too much glue is kneaded for too long before being removed by the tracks 10a, respectively 14a, in order to avoid drying of the glue.
  • the dimensions of the flange are controlled, the quantity of glue supplied by the nozzles 34a and 34b being adjusted so that the flange has just the necessary length, that is to say approximately the length of the cylindrical portion 14, any excess lengths being found on the end portions of the roller 12 in the form of a truncated cone, 15a and 15b, where they will be recovered by any wiping means (not shown).
  • the dimension of the rod is checked by means of the measuring cells 36a and 36b which measure the thickness of the rod 30 or by the cells (not shown) arranged nearby.
  • viscosity measuring devices 32a and 32b are installed in the supply piping and constantly monitor the viscosity glue flowing through these pipes.
  • a signal is supplied to the electronic control circuit 5 which opens the valve 41 of a device water spray 4.
  • a certain amount of water is added to the tube so as to maintain a low viscosity.
  • the electronic device acts first of all on the actuating means 23 to move the drive roller 22 away and move the paper tape 2 away from the sizing roller 12, then on the drive means 11 and 13 of the rollers 10 and 12, respectively, to trigger the drive of said rollers of the general drive of the machine and to trigger an auxiliary drive (not shown), namely an electric motor, in order to continue to keep said rollers rotating at constant speed so that the flange 30 continues to be kneaded; at the same time the circuit 5 controls the stopping of the supply of glue to the tube 30, by the complete closing of the control valves 33a and 33b, as well as the opening of the valve 41 in order to spray the roller 10, so that the flange 30 which continues to be kneaded by the rollers 10 and 12 does not dry out.
  • the arrows arranged on the inputs, respectively the outputs, of the control circuit 5 indicate the direction in which the signals circulate.
  • the sizing device makes it possible to guarantee a good sizing of a paper tape, by controlling the quality as well as the quantity of glue forming the tube, so that said glue does not degrade, respectively does not do not dry out before being applied to the paper tape.
  • This device is particularly suitable for gluing the ribbon of paper which must come to surround the cigarette filters; it can also be adapted to any machine having to glue a surface of any ribbon during its running, whether this ribbon is made of paper or any other material, for example fabric or synthetic material, and intended for a whole other use than that described above.

Landscapes

  • Coating Apparatus (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
  • Manufacturing Of Cigar And Cigarette Tobacco (AREA)

Abstract

Device for applying adhesive according to the invention makes it possible to guarantee a correct application of adhesive to a paper web (2) while controlling the quality or the viscosity of the adhesive and the dimension of the stock (30) milled between the two rolls (10, 12) of the said device. …<??>For this purpose the feeding of the stock with adhesive is done by feed nozzles (34a, 34b) ejecting fine jets of adhesive (35a, 35b) at a controlled flow rate. In the event of increase in the measured viscosity or of stoppage of the paper web, a water spraying device (40) makes it possible to lower the viscosity value of the adhesive and to prevent its drying. A dimension of the said stock is controlled and determines the control of the flow rate of adhesive in the feed nozzles. …<IMAGE>…

Description

La présente invention concerne un dispositif d'encollage d'un ruban de papier, en particulier d'un ruban du papier destiné à recouvrir les filtres de cigarettes.The present invention relates to a device for sizing a paper tape, in particular a paper tape intended to cover cigarette filters.

De tels dispositifs sont connus de la technique; ils consistent généralement en une pluralité de rouleaux en rotation, généralement deux, dont le premier trempe dans un bac de colle semi-liquide entraînant celle-ci afin de former un boudin juste avant l'endroit où les deux rouleaux sont en contact par une de leur génératrice, la colle nécessaire à l'encollage d'une bande de papier circulant en étant en contact appuyé contre le second rouleau, étant prélevée dudit boudin par ledit second rouleau et amenée contre le ruban de papier. Généralement il n'est pas nécessaire ou pas souhaité que l'ensemble de la surface du ruban de papier défilant sur le second rouleau soit encollée;
dans ce cas le premier rouleau comprendra plusieurs zones, celles d'entre elles correspondant aux surfaces du ruban de papier à ne pas encoller étant absolument lisses et/ou revêtues d'un enduit ne permettant pas à la colle d'y adhérer, alors que celles qui correspondent aux surfaces à encoller ont un état de surface tel que de la colle peut y adhérer, la colle étant alors prélevée du boudin et transmise au second rouleau afin qu'elle soit transportée par celui-ci sur les surfaces correspondantes à encoller du ruban de papier. Une pression importante et constante doit être assurée entre les deux rouleaux afin que la colle soit convenablement transférée des zones d'encollage du premier rouleau sur la surface extérieure du second rouleau.Such devices are known in the art; they generally consist of a plurality of rotating rollers, generally two, the first of which dips in a tank of semi-liquid glue driving it in order to form a flange just before the place where the two rollers are in contact by one of their generator, the glue necessary for gluing a strip of paper flowing while being in contact pressed against the second roll, being taken from said flange by said second roll and brought against the paper tape. Generally it is not necessary or not desired that the entire surface of the strip of paper running on the second roll is glued;
in this case the first roll will include several zones, those of them corresponding to the surfaces of the paper tape not to be glued being absolutely smooth and / or coated with a coating which does not allow the glue to adhere to it, whereas those corresponding to the surfaces to be glued have a surface condition such that glue can adhere to it, the glue is then taken from the flange and transmitted to the second roller so that it is transported by the latter on the corresponding surfaces to be glued from paper tape. A large and constant pressure must be ensured between the two rollers so that the glue is properly transferred from the gluing areas of the first roller to the outer surface of the second roller.

L'inconvénient majeur d'un tel dispositif selon l'art antérieur réside dans le fait que la qualité et la quantité de colle alimentant le boudin ne sont pas contrôlées, ce qui peut amener à une mauvaise qualité de l'encollage du ruban de papier. En effet, l'alimentation en colle du boudin se fait de manière continue par le premier rouleau alors que le second rouleau ne prélève qu'une partie de la colle contenue dans le boudin pour l'amener contre le ruban; il s'ensuit que la colle en excès s'échappe par les extrémités du rouleau inférieur et retombe dans le bac. Il en est de même lorsque le transport du ruban de papier est interrompu pour une raison quelconque alors que les rouleaux continuent à tourner afin de continuer le brassage de la colle dans le bac et d'éviter un desséchement du boudin existant, alors que le ruban de papier ne prélève plus de colle du second rouleau. Ainsi, la qualité de la colle dans le bac est inhomogène, constituée de colle provenant directement de l'alimentation en colle et de colle ayant déjà passé par le boudin. D'autre part vu que le boudin continue à être malaxé durant un arrêt de la machine, on obtient une dégradation de la colle contenue dans le boudin par laminage du boudin entre les deux rouleaux. De plus, vu que la surface supérieure du bac est à l'air libre, la colle dans le bac peut avoir tendance à se dessécher ou alors peut recevoir des impuretés et débris provenant du reste de la machine. La conjugaison de ces diverses causes engendre un encollage peu satisfaisant du ruban de papier.The major drawback of such a device according to the prior art lies in the fact that the quality and the quantity of glue supplying the rod is not controlled, which can lead to poor quality of the gluing of the paper tape. In fact, the glue supply of the sausage is made continuously by the first roller while the second roller takes only part of the glue contained in the sausage to bring it against the tape; it follows that the excess glue escapes through the ends of the lower roller and falls back into the tank. It is the same when the transport of the paper tape is interrupted for any reason while the rollers continue to rotate in order to continue the mixing of the glue in the tray and to avoid drying out of the existing flange, while the tape of paper no longer removes glue from the second roll. Thus, the quality of the glue in the tank is inhomogeneous, consisting of glue coming directly from the glue supply and of glue having already passed through the flange. On the other hand, since the flange continues to be kneaded during a stop of the machine, the adhesive contained in the flange is degraded by rolling the flange between the two rollers. In addition, since the upper surface of the tank is in the open air, the glue in the tank may tend to dry out or may receive dirt and debris from the rest of the machine. The combination of these various causes generates an unsatisfactory sizing of the paper tape.

Afin de pallier à ces inconvénients, le dispositif selon l'invention possède les éléments ayant les caractéristiques mentionnées dans les parties caractérisantes des revendications.In order to overcome these drawbacks, the device according to the invention has the elements having the characteristics mentioned in the characterizing parts of the claims.

Le dispositif d'encollage selon l'invention est maintenant décrit à partir du dessin en annexe comprenant une figure unique représentant une vue schématique en perspective d'une forme d'exécution d'un dispositif d'encollage selon l'invention.The gluing device according to the invention is now described from the appended drawing comprising a single figure representing a schematic perspective view of an embodiment of a device sizing according to the invention.

Le système de rouleaux 1 est composé d'un premier rouleau 10, de forme circulaire cylindrique, entraîné en rotation selon le sens indiqué par la flèche par des moyens représentés par 11, et d'un second rouleau 12 de forme circulaire, entraîné en rotation selon le sens indiqué par la flèche par des moyens représentés par 13. Le second rouleau 12 comprend une partie centrale 14 cylindrique et deux parties 15a et 15b situées aux extrémités du rouleau 12 et présentant une diminution de diamètre par rapport au diamètre de la partie cylindrique centrale 14. Selon une forme d'exécution préférentielle, les deux parties 15a et 15b sont en forme de tronc de cône allant en s'amincissant vers les extrémités ou alors elle peuvent être constituées de deux portées cylindriques ayant un diamètre inférieur à celui de la partie centrale 14. La longueur de la partie cylindrique 14 du second rouleau 12 est inférieure à la longueur du premier rouleau 10 et au moins égale à la largeur du ruban de papier 2. Le ruban de papier 2 dont une ou plusieurs zones de la face inférieure 20 sont à encoller circule, sur cette portion de machine, entre deux rouleaux 21 et 22. La position de l'axe de rotation du rouleau 21 est fixe, alors que l'axe de rotation du rouleau 22 est monté sur une glissière (non représentée) et peut être déplacé le long de ladite glissière par le moyen d'actionnement 23 qui peut être un dispositif à came ou un dispositif à piston, de technique connue. En agissant sur le moyen d'actionnement 23, il est possible de faire reculer, respectivement de faire avancer le rouleau 22, de manière que la surface inférieure 20 du ruban de papier 2 soit hors de contact, respectivement en contact, comme représenté sur la figure, avec une portion de la surface extérieure de la partie centrale 14 du second rouleau d'encollage 12.The roller system 1 is composed of a first roller 10, of circular cylindrical shape, driven in rotation in the direction indicated by the arrow by means represented by 11, and of a second roller 12 of circular shape, driven in rotation in the direction indicated by the arrow by means represented by 13. The second roller 12 comprises a central cylindrical part 14 and two parts 15a and 15b located at the ends of the roller 12 and having a reduction in diameter relative to the diameter of the cylindrical part central 14. According to a preferred embodiment, the two parts 15a and 15b are in the form of a truncated cone tapering towards the ends or else they may consist of two cylindrical bearing surfaces having a diameter less than that of the central part 14. The length of the cylindrical part 14 of the second roller 12 is less than the length of the first roller 10 and at least equal to the width of the paper tape 2. The paper tape 2 of which one or more zones of the underside 20 are to be glued circulates, on this portion of machine, between two rollers 21 and 22. The position of the axis of rotation of the roller 21 is fixed, while the axis of rotation of the roller 22 is mounted on a slide (not shown) and can be moved along said slide by the actuating means 23 which can be a cam device or a piston device, of known technique. By acting on the actuating means 23, it is possible to reverse, respectively to advance the roller 22, so that the lower surface 20 of the paper tape 2 is out of contact, respectively in contact, as shown in the figure, with a portion of the outer surface of the central part 14 of the second glue roller 12.

Les moyens d'entraînement 11 et 13 des rouleaux 10 et 12 entraînent lesdits rouleaux à des vitesses telles que le contact d'un rouleau sur l'autre se fait sans glissement, ces moyens d'entraînement 11 et 13 étant régulés afin que le ruban 2 passe par-dessus le rouleau 12 sans glissement. De manière préférentielle, les moyens d'entraînement 11 et 13 sont constitués de roues dentées, entraînées par les moyens d'entraînement généraux de la machine (non représentés). Ainsi, les vitesses de rotation des deux rouleaux 10 et 12 sont proportionnelles entre elles et avec la vitesse de la machine, le rapport du nombre de dents entre les roues dentées entraînant les rouleaux étant choisi afin que les deux rouleaux roulent l'un sur l'autre sans glissement. Des moyens d'entraînement auxiliaires sont utilisés lorsque la vitesse de la machine est inférieure à une certaine valeur, comme indiqué plus loin.The drive means 11 and 13 of the rollers 10 and 12 drive the said rollers at speeds such that the contact of one roller on the other takes place without sliding, these drive means 11 and 13 being regulated so that the ribbon 2 passes over the roller 12 without sliding. Preferably, the drive means 11 and 13 consist of toothed wheels, driven by the general drive means of the machine (not shown). Thus, the rotational speeds of the two rollers 10 and 12 are proportional to each other and with the speed of the machine, the ratio of the number of teeth between the toothed wheels driving the rollers being chosen so that the two rollers roll one on the other. other without sliding. Auxiliary drive means are used when the speed of the machine is less than a certain value, as indicated below.

Les moyens d'alimentation en colle 3 destinés à confectionner le boudin de colle 30, comprennent tout d'abord un réservoir de stockage (non représenté) alimentant par une ou des pompes adéquates (non représentées) une ou plusieurs tubulures de distribution, de préférence deux tubulures de distribution 31a et 31b comme représenté sur la figure. Afin d'assurer une qualité constante de la colle, celle-ci est contrôlée lors de son passage dans lesdites tubulures, plus précisément la viscosité de la colle est mesurée ou comparée à une valeur de référence, par les dispositifs représentés par 32a et 32b. Des vannes de commande de débit 33a et 33b sont disposées à proximité des buses de distribution de colle 34a et 34b qui projettent chacune un fin jet de colle 35a et 35b, afin d'alimenter le boudin de colle 30. Un ou plusieurs jeux de cellules de mesure de proximité, de préférence des cellules photo-électriques à rayonnement infra-rouges sont disposées en des endroits adéquats, par exemple à proximité des buses de distribution de colle 34a et 34b, comme représenté en 36a et 36b, afin de mesurer une des dimensions caractéristiques du boudin 30, par exemple sa dimension transversale. De préférence, la ou les cellules 36a et 36b sont des cellules émetteur-récepteur de proximité. Selon une autre forme d'exécution non représentée, les cellules peuvent être placées à proximité des extrémités du boudin afin d'en contrôler la longueur.The glue supply means 3 intended for making the glue strip 30, firstly comprise a storage tank (not shown) supplying one or more distribution pipes, preferably by one or more suitable pumps (not shown). two distribution pipes 31a and 31b as shown in the figure. In order to ensure a constant quality of the adhesive, it is checked during its passage through said pipes, more precisely the viscosity of the adhesive is measured or compared to a reference value, by the devices represented by 32a and 32b. Flow control valves 33a and 33b are arranged near the glue distribution nozzles 34a and 34b which each project a fine jet of glue 35a and 35b, in order to supply the glue rod 30. One or more sets of cells proximity measurement, preferably photocells infrared radiation are arranged in suitable places, for example near the glue dispensing nozzles 34a and 34b, as shown in 36a and 36b, in order to measure one of the characteristic dimensions of the rod 30, for example its transverse dimension. Preferably, the cell or cells 36a and 36b are proximity transmitter-receiver cells. According to another embodiment not shown, the cells can be placed near the ends of the rod in order to control the length.

Vu que la colle généralement utilisée est soluble dans l'eau, un ajustement, respectivement une diminution de sa viscosité, peut être obtenu en ajoutant une quantité d'eau déterminée au boudin 30. Pour ceci, le dispositif d'encollage est complété d'un dispositif d'alimentation en eau 4, composé d'une ou plusieurs buses de pulvérisation d'eau dont une seule est représentée en 40. Cette buse de pulvérisation est précédée d'une vanne de commande 41 et projette un jet étroit mais relativement allongé dans le sens de l'axe de rotation du rouleau 10, comme représenté en 42, environ radialement au premier rouleau 10, sur une portion de section du rouleau 10, située légèrement avant celle comportant le boudin 30. Le dispositif d'encollage est complété d'un circuit de commande électronique 5.Since the glue generally used is soluble in water, an adjustment, respectively a decrease in its viscosity, can be obtained by adding a given quantity of water to the rod 30. For this, the gluing device is completed with a water supply device 4, composed of one or more water spray nozzles, only one of which is shown at 40. This spray nozzle is preceded by a control valve 41 and projects a narrow but relatively elongated jet in the direction of the axis of rotation of the roller 10, as shown at 42, approximately radially to the first roller 10, on a section portion of the roller 10, situated slightly before that comprising the flange 30. The sizing device is completed an electronic control circuit 5.

Le fonctionnement du dispositif d'encollage va maintenant être décrit dans toutes ses fonctionnalités. Le fonctionnement correct de la machine à cigarettes, soit un défilement de la bande de papier 2 à encoller est détecté par le détecteur schématisé en 24 qui peut être de n'importe quel type, par exemple un disque codeur disposé sur le rouleau 21 d'entraînement du ruban de papier. Le détecteur 24 envoie un signal indiquant le déroulement de la bande de papier 2 ainsi que la vitesse de déroulement de ladite bande, au circuit de commande électronique 5. A partir du signal de vitesse provenant du détecteur 24, et lorsque la vitesse de défilement de la bande de papier 2 est suffisante, le circuit de commande électronique 5 commande les moyens d'actionnement 23 afin de faire avancer le rouleau 22 et de plaquer la face inférieure 20 de la bande de papier 2 contre une portion de la surface de la partie centrale 14 du rouleau 12. En même temps, le circuit électronique 5 commande l'enclenchement des roues dentées d'entraînement des rouleaux 10 et 12 afin que chacun de ceux-ci soit entraîné à une vitesse proportionnelle à la vitesse d'entraînement du ruban de papier 2. Puis le circuit de commande 5 commande l'ouverture des vannes de commande 33a et 33b de manière que les jets de colle 35a et 35b puissent alimenter le boudin 30. La colle nécessaire à l'encollage de la face inférieure 20 du ruban de papier 2 est prélevée dudit boudin par le second rouleau 12. La figure représente le cas où il n'est pas nécessaire que toute la surface 20 soit encollée mais seulement un certain nombre de zones 20a, alors que le reste de la surface 20b, correspondant par exemple aux régions du papier sur lesquelles sont disposés les trous d'aération du filtre ainsi qu'aux endroits où passera une lame coupante chargée de séparer les cigarettes, ne reçoit pas de colle. Pour ceci, l'état de surface des portions 10a de la surface cylindrique du rouleau 10 est tel que de la colle peut y adhérer et être prélevée du boudin 30 afin d'être transmise à des portions 14a de la partie centrale 14 du rouleau 12 pour pouvoir encoller les zones 20a du ruban de papier 2. L'état de surface des portions 10b de la surface cylindrique du rouleau 10, disposées entre les portions 10a, est tel que la colle du boudin 30 ne peut y adhérer, ce qui laisse libre de colle les portions 14b de la partie centrale 14 du rouleau 12 et par conséquent les zones 20b du ruban de papier 2. Pour ceci, les portions de surface 10b sont extrêmement lisses et/ou recouvertes d'un enduit empêchant à la colle d'y adhérer. Le boudin 30 est donc alimenté en colle d'un côté par les jets 35a et 35b en provenance des buses 34a et 34b et de l'autre côté de la colle en est extraite par les pistes 10a du premier rouleau d'encollage 10 pour être transmise aux zones 20a de la surface inférieure 20 du ruban 2, via les portions 14a du second rouleau d'encollage 12. D'autre part, ledit boudin est continuellement malaxé par les rouleaux 10 et 12 afin que la colle en provenance des buses 34a et 34b s'étende bien sur toute la longueur de la portion cylindrique 14 du second rouleau 12 afin que les portions de surface 14a disposées aux extrémités de ladite portion cylindrique soient convenablement alimentées en colle. Néanmoins, il ne faut pas que le boudin soit trop important et qu'une trop grand quantité de colle soit malaxée durant trop longtemps avant d'être prélevée par les pistes 10a, respectivement 14a, afin d'éviter un desséchement de la colle. Pour ceci les dimensions du boudin sont contrôlées, la quantité de colle fournie par les buses 34a et 34b étant ajustée afin que le boudin ait juste la longueur nécessaire, soit approximativement la longueur de la portion cylindrique 14, les éventuelles longueurs en excédent se retrouvant sur les portions d'extrémités du rouleau 12 en forme de tronc de cône, 15a et 15b, où elles seront récupérées par des moyens d'essuyage quelconques (non représentés). Le contrôle de la dimension du boudin se fait par l'intermédiaire des cellules de mesure 36a et 36b qui mesurent l'épaisseur du boudin 30 ou par les cellules (non représentées) disposés à proximité des extrémités du boudin 30 et qui en mesurent la longueur, lesdites cellules agissant par effet de proximité et fournissant les signaux de commande nécessaires au circuit électronique 5 afin que celui-ci, si la valeur mesurée ne correspond pas à une valeur de consigne de dimension, agisse sur les vannes de commande 33a et 33b afin de réguler l'arrivée de colle sur le boudin 30.The operation of the gluing device will now be described in all its functionality. The correct functioning of the cigarette machine, that is to say a movement of the strip of paper 2 to be glued is detected by the detector shown diagrammatically at 24 which can be of any type, for example an encoder disc placed on the roller 21 of paper tape drive. The detector 24 sends a signal indicating the unwinding of the strip of paper 2 as well as the speed of unwinding of said strip, to the electronic control circuit 5. From the speed signal coming from the detector 24, and when the running speed of the strip of paper 2 is sufficient, the electronic control circuit 5 controls the actuating means 23 in order to advance the roller 22 and to press the underside 20 of the paper strip 2 against a portion of the surface of the central part 14 of the roller 12. At the same time, the electronic circuit 5 controls the engagement of the toothed wheels for driving the rollers 10 and 12 so that each of these is driven at a speed proportional to the speed of driving the paper tape 2. Then the control circuit 5 controls the opening of the control valves 33a and 33b so that the glue jets 35a and 35b can feed the flange 30. The glue necessary for gluing the underside Erieure 20 of the paper tape 2 is taken from said flange by the second roller 12. The figure represents the case where it is not necessary that the entire surface 20 is glued but only a certain number of zones 20a, while the rest of the surface 20b, corresponding for example to the regions of the paper on which the ventilation holes of the filter are arranged as well as to the places where a cutting blade responsible for separating the cigarettes will pass, does not receive any glue. For this, the surface condition of the portions 10a of the cylindrical surface of the roller 10 is such that glue can adhere to it and be removed from the flange 30 in order to be transmitted to portions 14a of the central part 14 of the roller 12 to be able to glue the zones 20a of the paper tape 2. The surface condition of the portions 10b of the cylindrical surface of the roll 10, arranged between the portions 10a, is such that the sausage glue 30 cannot adhere to it, which leaves the portions 14b of the central part 14 of the roll 12 free of glue and consequently the zones 20b of the paper tape 2. For this, the surface portions 10b are extremely smooth and / or covered with a coating preventing the glue from adhering to it. The flange 30 is therefore supplied with glue on one side by the jets 35a and 35b coming from the nozzles 34a and 34b and on the other side of the glue is extracted therefrom by the tracks 10a of the first sizing roller 10 to be transmitted to the zones 20a of the lower surface 20 of the tape 2, via the portions 14a of the second sizing roller 12. On the other hand, said strand is continuously kneaded by the rollers 10 and 12 so that the glue coming from the nozzles 34a and 34b extends well over the entire length of the cylindrical portion 14 of the second roller 12 so that the surface portions 14a disposed at the ends of said cylindrical portion are suitably supplied with adhesive. However, it is not necessary that the flange is too large and that too much glue is kneaded for too long before being removed by the tracks 10a, respectively 14a, in order to avoid drying of the glue. For this, the dimensions of the flange are controlled, the quantity of glue supplied by the nozzles 34a and 34b being adjusted so that the flange has just the necessary length, that is to say approximately the length of the cylindrical portion 14, any excess lengths being found on the end portions of the roller 12 in the form of a truncated cone, 15a and 15b, where they will be recovered by any wiping means (not shown). The dimension of the rod is checked by means of the measuring cells 36a and 36b which measure the thickness of the rod 30 or by the cells (not shown) arranged nearby. ends of the rod 30 and which measure the length thereof, said cells acting by proximity effect and supplying the necessary control signals to the electronic circuit 5 so that the latter, if the measured value does not correspond to a dimension reference value , acts on the control valves 33a and 33b in order to regulate the arrival of glue on the flange 30.

Vu que la colle contenue dans le dispositif d'alimentation en colle 3 peut, pour diverses raisons, ne pas être absolument homogène, des dispositifs de mesure de la viscosité 32a et 32b sont installés dans la tuyauterie d'alimentation et contrôlent en permanence la viscosité de la colle circulant par ces tuyauteries. Au cas où l'un de ces dispositifs de mesure de viscosité 32a ou 32b mesure une augmentation de viscosité par rapport à une valeur de consigne de viscosité, un signal est fourni au circuit électronique de commande 5 qui ouvre la vanne 41 d'un dispositif d'aspersion d'eau 4. Ainsi, une certaine quantité d'eau est ajoutée au boudin de manière à lui conserver une faible viscosité.Since the glue contained in the glue supply device 3 may, for various reasons, not be absolutely homogeneous, viscosity measuring devices 32a and 32b are installed in the supply piping and constantly monitor the viscosity glue flowing through these pipes. In the event that one of these viscosity measuring devices 32a or 32b measures an increase in viscosity relative to a viscosity set value, a signal is supplied to the electronic control circuit 5 which opens the valve 41 of a device water spray 4. Thus, a certain amount of water is added to the tube so as to maintain a low viscosity.

Au cas où le détecteur de mouvement 24 du ruban de papier 2 signale que le ruban est arrêté ou circule à une vitesse très nettement inférieure à la vitesse normale, cet arrêt de la machine ou cette diminution de vitesse étant provoqué par n'importe quelle cause, le dispositif électronique agit tout d'abord sur les moyens d'actionnement 23 pour éloigner le rouleau d'entraînement 22 et écarter le ruban de papier 2 du rouleau d'encollage 12, puis sur les moyens d'entraînement 11 et 13 des rouleaux 10 et 12, respectivement, pour déclencher l'entraînement desdits rouleaux de l'entraînement général de la machine et enclencher un entraînement auxiliaire (non représenté), soit un moteur électrique, afin de continuer à garder lesdits rouleaux en rotation à vitesse constante pour que le boudin 30 continue à être malaxé; au même moment le circuit 5 commande l'arrêt de la fourniture en colle au boudin 30, par la fermeture complète des vannes de commande 33a et 33b, ainsi que l'ouverture de la vanne 41 afin d'asperger le rouleau 10, de manière que le boudin 30 qui continue à être malaxé par les rouleaux 10 et 12 ne se dessèche pas.In the event that the motion detector 24 of the paper tape 2 signals that the tape has stopped or is traveling at a speed very much lower than the normal speed, this stopping of the machine or this reduction in speed being caused by any cause. , the electronic device acts first of all on the actuating means 23 to move the drive roller 22 away and move the paper tape 2 away from the sizing roller 12, then on the drive means 11 and 13 of the rollers 10 and 12, respectively, to trigger the drive of said rollers of the general drive of the machine and to trigger an auxiliary drive (not shown), namely an electric motor, in order to continue to keep said rollers rotating at constant speed so that the flange 30 continues to be kneaded; at the same time the circuit 5 controls the stopping of the supply of glue to the tube 30, by the complete closing of the control valves 33a and 33b, as well as the opening of the valve 41 in order to spray the roller 10, so that the flange 30 which continues to be kneaded by the rollers 10 and 12 does not dry out.

Les flèches disposées sur les entrées, respectivement les sorties, du circuit de commande 5 indiquent le sens dans lequel circulent les signaux.The arrows arranged on the inputs, respectively the outputs, of the control circuit 5 indicate the direction in which the signals circulate.

Ainsi, le dispositif d'encollage selon l'invention permet de garantir un bon encollage d'un ruban de papier, en contrôlant la qualité ainsi que la quantité de colle formant le boudin, afin que ladite colle ne se dégrade pas, respectivement ne se dessèche pas avant d'être appliquée sur le ruban de papier. Ce dispositif convient particulièrement bien à l'encollage du ruban du papier devant venir entourer les filtres de cigarettes; il peut aussi bien s'adapter à toute machine devant encoller une surface d'un ruban quelconque lors de son défilement, que ce ruban soit en papier ou en tout autre matériau, par exemple en tissu ou en matière synthétique, et destiné à un tout autre usage que celui décrit précédemment.Thus, the sizing device according to the invention makes it possible to guarantee a good sizing of a paper tape, by controlling the quality as well as the quantity of glue forming the tube, so that said glue does not degrade, respectively does not do not dry out before being applied to the paper tape. This device is particularly suitable for gluing the ribbon of paper which must come to surround the cigarette filters; it can also be adapted to any machine having to glue a surface of any ribbon during its running, whether this ribbon is made of paper or any other material, for example fabric or synthetic material, and intended for a whole other use than that described above.

Claims (13)

1-Dispositif d'encollage d'un ruban de papier (2) constitué d'un premier rouleau d'encollage en rotation (10) et d'un second rouleau d'encollage en rotation en sens inverse (12), en contact l'un avec l'autre selon une génératrice, les axes de rotation des deux rouleaux d'encollage étant parallèles entre eux, ledit ruban de papier se déplaçant perpendiculairement audits axes de rotation, en étant appuyé sur le second desdits rouleaux, un boudin de colle (30) étant situé sur une portion longitudinale de chacun desdits rouleaux, caractérisé en ce que
   le second rouleau d'encollage est formé d'une première partie centrale cylindrique (14) et de deux parties d'extrémités (15a,15b) dont le diamètre est inférieur à celui de ladite partie centrale cylindrique, la longueur de la partie centrale cylindrique du second rouleau étant inférieure à la longueur du premier rouleau d'encollage cylindrique. 1- Sizing device for a paper tape (2) consisting of a first rotating sizing roller (10) and a second reverse sizing roller (12), in contact l 'with one another along a generator, the axes of rotation of the two glue rollers being parallel to each other, said paper strip moving perpendicular to said axes of rotation, while being pressed on the second of said rollers, a strip of glue (30) being located on a longitudinal portion of each of said rollers, characterized in that
the second sizing roller is formed by a first cylindrical central part (14) and by two end parts (15a, 15b) whose diameter is less than that of said cylindrical central part, the length of the cylindrical central part of the second roller being less than the length of the first cylindrical sizing roller. 2-Dispositif selon la revendication 1, caractérisé en ce que les deux parties d'extrémités du second rouleau d'encollage sont en forme de tronc de cône, s'amincissant vers les extrémités. 2- Device according to claim 1, characterized in that the two end portions of the second sizing roller are in the form of a truncated cone, tapering towards the ends. 3-Dispositif selon la revendication 1, caractérisé en ce que les deux parties d'extrémités du second rouleau d'encollage sont constituées de portées cylindriques. 3- Device according to claim 1, characterized in that the two end portions of the second sizing roller consist of cylindrical surfaces. 4-Dispositif selon l'une des revendications précédentes, caractérisé en ce que ledit boudin de colle est alimenté par au moins une buse de distribution de colle (34a,34b). 4- Device according to one of the preceding claims, characterized in that said glue strand is supplied by at least one glue dispensing nozzle (34a, 34b). 5-Dispositif selon la revendication 4, caractérisè en ce que les tubulures d'alimentation (31a,31b) desdites buses de distribution de colle comprennent au moins un dispositif de contrôle de la viscosité de la colle (32a,32b). 5- Device according to claim 4, characterized in that the supply pipes (31a, 31b) of said glue distribution nozzles comprise at least one device for controlling the viscosity of the glue (32a, 32b). 6-Dispositif selon les revendications 4 ou 5, caractérisé en ce que chaque buse de distribution de colle comprend une vanne de commande de débit (33a,33b). 6- Device according to claims 4 or 5, characterized in that each adhesive distribution nozzle comprises a flow control valve (33a, 33b). 7-Dispositif selon la revendication 6, caractérisé en ce qu'au moins une buse d'aspersion d'eau (40) est disposée radialement par rapport au premier rouleau d'encollage. 7- Device according to claim 6, characterized in that at least one water spray nozzle (40) is arranged radially relative to the first sizing roller. 8-Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce qu'une dimension transversale dudit boudin de colle est mesurée par au moins une cellule photo-électrique (36a,36b). 8- Device according to any one of the preceding claims, characterized in that a transverse dimension of said glue strand is measured by at least one photoelectric cell (36a, 36b). 9-Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il comprend en outre un dispositif électronique de commande (5). 9- Device according to any one of the preceding claims, characterized in that it further comprises an electronic control device (5). 10-Dispositif selon les revendications 1, 4, 6, 7 et 9, caractérisé en ce que ledit dispositif électronique commande l'écartement du ruban de papier du second rouleau d'encollage, le maintien en rotation desdits rouleaux d'encollage, la fermeture partielle ou totale desdites vannes de contrôle de débit montées sur les buses de distribution de colle, ainsi que l'aspersion du premier rouleau d'encollage, lorsque le ruban de papier fonctionne à une vitesse inférieure à une valeur minimale ou est arrêtée. 10- Device according to claims 1, 4, 6, 7 and 9, characterized in that said electronic device controls the spacing of the paper tape of the second sizing roller, the maintenance in rotation of said sizing rollers, the closure partial or total of said flow control valves mounted on the glue dispensing nozzles, as well as the spraying of the first sizing roller, when the paper tape operates at a speed lower than a minimum value or is stopped. 11-Dispositif selon les revendications 5, 7 et 9, caractérisé en ce que ledit dispositif électronique commande l'aspersion du premier rouleau d'encollage, lorsque la valeur de la viscosité mesurée dépasse une valeur de consigne. 11- Device according to claims 5, 7 and 9, characterized in that said electronic device controls the spraying of the first sizing roller, when the value of the measured viscosity exceeds a set value. 12-Dispositif selon les revendications 6, 8 et 9, caractérisé en ce que ledit dispositif électronique commande l'ouverture, respectivement la fermeture, partielle ou totale, desdites vannes de contrôle de débit montées sur les buses de distribution de colle selon que la dimension mesurée du boudin de colle est inférieure, respectivement supérieure à une valeur de consigne. 12- Device according to claims 6, 8 and 9, characterized in that said electronic device controls the opening, respectively closing, partial or total, of said flow control valves mounted on the glue distribution nozzles depending on the dimension measured of the glue rod is lower, respectively higher than a set value. 13-Dispositif selon l'une des revendications précédentes, caractérisé en ce qu'il est utilisé pour l'encollage du ruban du papier recouvrant les filtres de cigarettes. 13- Device according to one of the preceding claims, characterized in that it is used for sizing the paper tape covering the cigarette filters.
EP92810052A 1991-02-25 1992-01-27 Device and process for applying adhesive to a web Expired - Lifetime EP0501909B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH55391 1991-02-25
CH553/91 1991-02-25

Publications (2)

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EP0501909A1 true EP0501909A1 (en) 1992-09-02
EP0501909B1 EP0501909B1 (en) 1996-02-21

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EP92810052A Expired - Lifetime EP0501909B1 (en) 1991-02-25 1992-01-27 Device and process for applying adhesive to a web

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US (1) US5221350A (en)
EP (1) EP0501909B1 (en)
DE (1) DE69208378T2 (en)

Cited By (5)

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EP0643928A1 (en) * 1993-12-16 1995-03-22 Fabriques De Tabac Reunies S.A. Device for applying adhesive to a paper web
EP0787533A1 (en) * 1995-08-24 1997-08-06 AZIONARIA COSTRUZIONI MACCHINE AUTOMATICHE-A.C.M.A.-S.p.A. Gumming device
CN104174543A (en) * 2014-08-12 2014-12-03 安徽宜桐机械有限公司 Cigarette filter tip assembling machine glue spray system device
CN104689942A (en) * 2015-03-05 2015-06-10 谢洪 Device of cigarette packaging machine for automatically cleaning cold glue multi-head combined spray gun
CN110638088A (en) * 2019-11-05 2020-01-03 龙岩烟草工业有限责任公司 Glue storage device, glue conveying system and tobacco machinery

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US5384160A (en) * 1993-03-11 1995-01-24 Frazzitta; Joseph Method of coating a surface
ES2128236B1 (en) * 1996-04-29 1999-12-01 Mecanizados Y Talleres Ind S A METHOD AND APPARATUS FOR THE APPLICATION OF ADHESIVE TO THE PAPER OF CIGARETTES AND THE PAPER AND CIGARETTES PRODUCED WITH IT.
CA2304944A1 (en) * 1999-04-12 2000-10-12 Grand Rapids Label Company Label printer/applicator with improved label cutting, control and application and method for doing the same
IT1309313B1 (en) 1999-07-02 2002-01-22 Gd Spa DEVICE FOR CLEANING A GUMMING ORGAN.
US6821345B2 (en) * 1999-11-12 2004-11-23 Lsp Industries, Inc. Roller coater apparatus
US6521044B1 (en) * 1999-11-12 2003-02-18 Lsp Industries, Inc. Roller apparatus for applying lubricant to sheet metal stock
EP1731045B1 (en) * 2000-04-20 2011-02-23 Hauni Maschinenbau AG Device for gluing a wrapping material on a rod-shaped article in the tobacco industry
GB0310034D0 (en) * 2003-04-30 2003-06-04 British American Tobacco Co Improvements relating to material application to rod wrappers
JP4206837B2 (en) * 2003-06-18 2009-01-14 三菱瓦斯化学株式会社 Batch heating device
EP1488713B1 (en) * 2003-06-20 2007-04-25 Hauni Maschinenbau AG Machine of the tobacco industry
ATE360378T1 (en) * 2003-06-20 2007-05-15 Hauni Maschinenbau Ag MACHINE OF THE TOBACCO PROCESSING INDUSTRY
IT1393302B1 (en) * 2009-03-25 2012-04-20 Gd Spa TIRING DEVICE AND WHEELING METHOD OF A WRAPPING MATERIAL TAPE.
DE102019208131A1 (en) * 2019-06-04 2020-12-10 Winkler + Dünnebier Gmbh Gluing station and method for operating such a gluing station
IT202100007067A1 (en) * 2021-03-24 2022-09-24 Gd Spa METHOD FOR THE CREATION OF A PRODUCT OF THE TOBACCO INDUSTRY AND RELATED MACHINE

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FR2471342A1 (en) * 1979-12-11 1981-06-19 Molins Ltd SIZER DEVICE FOR FILTER FIXING MACHINES FOR CIGARETTES
WO1990011518A1 (en) * 1989-03-25 1990-10-04 B.A.T. Cigarettenfabriken Gmbh Device for detecting the sufficiency of an adhesive coating on a strip of paper

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0643928A1 (en) * 1993-12-16 1995-03-22 Fabriques De Tabac Reunies S.A. Device for applying adhesive to a paper web
EP0787533A1 (en) * 1995-08-24 1997-08-06 AZIONARIA COSTRUZIONI MACCHINE AUTOMATICHE-A.C.M.A.-S.p.A. Gumming device
CN104174543A (en) * 2014-08-12 2014-12-03 安徽宜桐机械有限公司 Cigarette filter tip assembling machine glue spray system device
CN104689942A (en) * 2015-03-05 2015-06-10 谢洪 Device of cigarette packaging machine for automatically cleaning cold glue multi-head combined spray gun
CN104689942B (en) * 2015-03-05 2017-03-01 谢洪 A kind of device of the automatic cleaning cold glue multi-head combined spray pistol of cigarette-packaging machine
CN110638088A (en) * 2019-11-05 2020-01-03 龙岩烟草工业有限责任公司 Glue storage device, glue conveying system and tobacco machinery

Also Published As

Publication number Publication date
DE69208378D1 (en) 1996-03-28
US5221350A (en) 1993-06-22
DE69208378T2 (en) 1996-09-05
EP0501909B1 (en) 1996-02-21

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