EP1905317B1 - Procédé et dispositif de chauffage et de durcissement de tiges de filtre - Google Patents

Procédé et dispositif de chauffage et de durcissement de tiges de filtre Download PDF

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Publication number
EP1905317B1
EP1905317B1 EP07075851A EP07075851A EP1905317B1 EP 1905317 B1 EP1905317 B1 EP 1905317B1 EP 07075851 A EP07075851 A EP 07075851A EP 07075851 A EP07075851 A EP 07075851A EP 1905317 B1 EP1905317 B1 EP 1905317B1
Authority
EP
European Patent Office
Prior art keywords
filter rods
hot
air oven
cooling device
air
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.)
Not-in-force
Application number
EP07075851A
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German (de)
English (en)
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EP1905317A1 (fr
Inventor
Sönke Horn
Wolff Stephan
Scherbarth Thorsten
Buhl Alexander
Maurer Irene
De Boer Jann
Böttcher Maik
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.)
Koerber Technologies GmbH
Original Assignee
Hauni Maschinenbau GmbH
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Filing date
Publication date
Application filed by Hauni Maschinenbau GmbH filed Critical Hauni Maschinenbau GmbH
Priority to PL07075851T priority Critical patent/PL1905317T3/pl
Publication of EP1905317A1 publication Critical patent/EP1905317A1/fr
Application granted granted Critical
Publication of EP1905317B1 publication Critical patent/EP1905317B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
    • A24D3/02—Manufacture of tobacco smoke filters
    • A24D3/025—Final operations, i.e. after the filter rod forming process
    • 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
    • A24C5/35—Adaptations of conveying apparatus for transporting cigarettes from making machine to packaging machine

Definitions

  • the invention relates to a method for heating and curing filter rods or the like, which consist of at least one filter material and a hot melt adhesive connecting the filter material. Furthermore, the invention relates to a device for heating and curing filter rods or the like, which consist of a filter material and a hot melt adhesive connecting the filter material, comprising means for heating and curing the filter rods and a transport unit for transporting the filter rods through the device.
  • Such devices and methods are used in the tobacco processing industry in the manufacture of filter rods or the like for cigarette filters or the like.
  • the filter material drawn off from a bale in an endless strip, the so-called tow, which preferably consists of individual fibers and / or threads, for example of cellulose acetate, is processed.
  • the filter material is optionally provided with additives, for example in the form of granulated activated carbon and / or other additives, as well as a suitable binding material for binding (binding) of the filter material.
  • a binding material or binder is in addition to the commonly used triacetin, inter alia, a hot melt adhesive, which may be provided, for example, in powder, granular or fibrous form.
  • a hot melt adhesive which may be provided, for example, in powder, granular or fibrous form.
  • the filter strand or the filter rods go through a so-called curing line to cure the applied during the filter rod manufacturing on the fiber material plasticizer (eg triacetin).
  • the DE 100 08 786 A1 discloses, for example, a conveyor in which a multilayer filter bar mass flow is continuously passed through a microwave heating system. By heating, the plasticizer can diffuse easier and faster into the interior of the fibers, whereby the curing is accelerated.
  • microwaves which are used in the cited prior art for curing plasticizers, for the heating of hot melt adhesives until melting thereof is unsuitable.
  • the filter rods are transported in one layer and sporadically successively through a hot air oven with at least one heating zone and by a cooling device with at least one cooling zone, wherein the filter rods during transport through the hot air oven and by the cooling device uniformly and continuously first to melt the hot melt adhesive to a temperature which is just above the melting temperature of the hot melt adhesive, heated and then cooled to cure the hot melt adhesive. Due to the single-layered and scattered transport of the filter rods through the hot air oven and the cooling device, all filter rods are first heated uniformly, whereby the hot melt reliably melt even inside the filter rods to the core and can form contact points between the fibers with each other. The final cooling causes the filter rods cured for a short time, so are no longer plastically deformable, and immediately after leaving the hot air oven, so that the filter rods can be stored directly or further processed.
  • the filter rods are transported transversely to their longitudinal extent by the hot air oven and the cooling device.
  • a compact design can be realized in a particularly simple manner.
  • the filter rods are rotated during transport through the hot air oven and the cooling device about its central or rotational axis. This allows a particularly uniform loading of the filter rods with heated or cooled air.
  • An expedient development of the method provides that the hot air in the hot air oven and the cold air are swirled in the cooling device. This type of air recirculation is achieved in an effective manner that the filter rods are uniformly heated and cooled, which increases the quality of the filter rods.
  • the filter rods are transported in several planes through the hot air oven and through the cooling device.
  • the individual transport planes are spaced from each other.
  • An expedient development of the invention is characterized in that the individual heating zones and the cooling zone are set and regulated independently of each other in terms of temperature. This allows a simple and easily manageable adaptation of the temperature profiles to different requirements and / or compositions of the filter rods. This is a gentle heating of the hot melt adhesive while suppressing unwanted side effects, such. Discoloration of the filter paper, feasible.
  • the filter rods are full, so from all sides initially charged with hot air and then with cold air. In that the whole Surface of the filter rods comes into contact with hot and cold air, a particularly uniform heating and cooling is achieved.
  • the object is achieved by a device having the features mentioned above in that the device for continuous and uniform heating and curing of the filter rods is formed and a hot air oven with at least one heating zone and arranged in the transport direction T of the filter rods behind the hot air oven cooling device comprises at least one cooling zone, and the transport unit is designed for single and individual transport of the filter rods through the hot air oven and the cooling device.
  • the transport unit comprises at least two separate conveying elements, wherein the conveying elements are connected to one another via a transfer drum or the like. This can ensure that each conveyor element is exposed only to a constant temperature. In other words, this design causes a conveying element to go through either only a warm or a cold zone.
  • the conveying elements are designed and set up as a vertical conveyor. This has the advantage that falling from the transport unit filter rods fall through down, where they can then be collected and removed.
  • the devices shown in the figures are used for heating and curing of filter rods. However, the invention relates equally to the treatment of filter strands or the like.
  • FIG. 1 schematically is a device 10 for heating and curing of filter rods 11, the at least one fibrous filter material and a binding material connecting the filter material, namely, for example, a present in powder, granular or fibrous form hot melt adhesive and additionally optionally from other additives such as activated carbon granules o .ae. are formed shown.
  • the device 10 essentially comprises a transport unit 12 for the filter rods 11 and a device 13 for heating and curing the filter rods 11.
  • the Device 10 in the transport direction T of the filter rods 11 a device 14, for example in the form of a Schragenstation, assigned to singulate the filter rods 11 from a mass flow.
  • the device 14 for example, stored in Schragen filter rods 11 can be separated by means of a drum 15 or the like and the transport unit 12 are supplied. Alternatively, however, a loading of the transport unit 12 is possible directly through a filter rod machine.
  • the device 13 is designed for continuous and uniform heating and curing of the filter rods 11 and comprises a hot-air oven 16 and a cooling device 17.
  • the hot-air oven 16 and the cooling device 17 may form a unit or be formed separately and arranged one after the other, the cooling device 17 being in the transport direction T of FIG Filter rods 11 is disposed behind the hot air oven 16.
  • the hot air oven 16, which is preferably designed as a circulating air oven, has at least one heating zone 18, but preferably two heating zones 18 and 19. However, the number of heating zones 18, 19 can optionally be increased.
  • the cooling device 17 preferably has a cooling zone 20. In non-described embodiments, the number of cooling zones 20 or the length of the cooling section can vary, in particular be increased. All heating zones 18, 19 and cooling zones 20 are preferably separately controllable with respect to the temperature setting.
  • Both the hot air oven 16 and the cooling device 17 are preferably assigned in all heating zones 18, 19 or cooling zones 20 means 21 for swirling the hot air or cold air.
  • the ambient air and / or the heated air and / or the cooled air can be uniformly swirled within the device 13.
  • the device 13 virtually forms a closed system, such that the heated and / or cooled air is taken up again and again swirled. Therefore, the heating zones 18, 19 and the cooling zone 20 except for an opening 22 for inserting the filter rods 11 into the device 13 and an opening 23 for discharging the filter rods 11 from the device 13 in an outwardly closed space.
  • the cooling device 17, which usually uses ambient air to cool or harden the filter rods 11, can optionally be assigned a cooling unit 24 or the like, which additionally cools the ambient air.
  • the above-mentioned transport unit 12 is designed for the single-layer and individual transport of the filter rods 11 through the device 13. Preferably and in order to simplify the input and removal of the filter rods 11 to or from the transport unit 12, this protrudes on the input side in the region of the opening 22 and on the output side in the region of the opening 23 from the hot air oven 16 or the cooling device 17.
  • the transport unit 12 comprises an endlessly arranged or arranged conveyor chain 25.
  • the lattice-like conveyor chain 25 has receptacles 26, wherein the receptacles 26 are designed and aligned for the transaxial reception of the filter rods 11.
  • Each receptacle 26 is designed to receive a filter rod 11 lying transversely to its longitudinal extension.
  • the receptacles 26 for receiving a plurality of filter rods 11 form such that two or more filter rods 11 are in their longitudinal extension one behind the other, all filter rods 11 seen in a receptacle 26 in the transport direction T next to each other - a strand of several forming individual filter rods 11 - lie.
  • the width of the receptacles 26 and the distances from receptacle 26 to receptacle 26 are chosen to be consistent.
  • a plurality of conveyor chains 25 may also be arranged next to one another, so that the transport unit 12 is designed to be multi-track or multi-lane. In addition to the conveyor chains 25 and conveyor belts or other suitable funding can be used.
  • the transport unit 12 or, more precisely, the conveyor chain 25 is assigned a cover element 27.
  • the cover member 27 extends above the conveyor chain 25 at least within the hot air oven 16 and the cooling device 17 over the entire transport path of the filter rods 11 of the device 13.
  • the cover member 27 is part of the device 13 and firmly connected thereto.
  • the cover member 27 is fixed with respect to the conveyor chain 25.
  • the distance of the cover 27, which may be formed as a grid plate, for example, is selected such that the filter rods 11 are held compulsorily in the receptacles 26.
  • Both the conveyor chain 25 and the cover 27 are designed to be permeable to air. Of course, this also applies to the pictures 26 This ensures that the swirling hot air / cold air can attack from all sides to the filter rods 1.
  • the transport unit 12 may also be designed such that a conveyor chain 25 or the like is guided in multiple levels through the device 13. The different levels are then spaced from each other, so that the respective single-layer arrangement of the filter rods 11 is ensured on the conveyor chain 25.
  • the guidance of the transport unit 12 through the device 13 may be looped, meandering or otherwise realized.
  • the transport unit 12 can, as in FIG. 5 shown, also consist of a plurality of drums 29 forming drums.
  • transfer drums 30 and rolling drums 31 are arranged alternately, which are in operative connection with each other.
  • the drum barrel 29 extends through the entire device 10.
  • Each of the drums 30, 31 has recesses for receiving the filter rods 11, which are aligned transversely to the transport direction T, so that the filter rods 11 also transported transversely to its longitudinal extent or to its axis of rotation become.
  • the diameter of the rolling drums 31 is preferably greater than the diameter of the transfer drums 30. Of course, other diameter ratios are possible.
  • the pitch of the drums and in particular of the rolling drums 31 is likewise variable, but is preferably 3 ⁇ .
  • FIGS. 6 and 7 a further possibility of the embodiment of the transport unit 12 can be seen.
  • the transport unit 12 comprises at least two such conveying elements 33, which are formed and arranged separately from each other. Adjacent conveying elements 33 are connected to one another via a transfer drum 34 or other suitable and customary transfer means. In other words, the transfer drum 34 ensures the transfer from one conveyor element 33 to the next conveyor element 33.
  • the conveying elements 33 can be single-tracked or, as in FIG FIG. 6 darg Pope be formed also two lanes.
  • the multilobility can also be achieved by juxtaposing two or more conveyor elements 33.
  • the filter rods 11 themselves are conveyed transversely to their longitudinal extension or transversely to their rotational or central axis as in the previously described embodiments.
  • Each conveyor element 33 is formed from two spaced-apart conveyor chains 35, 36.
  • the conveyor chains 35, 36 are guided around drive and / or deflection rollers 37, 38.
  • the rollers 37, 38 are arranged vertically one above the other.
  • One of the rollers 37, 38, preferably the lower roller 38 is larger in diameter than the overlying roller 37. However, the diameters may vary.
  • the conveying elements 33 are formed endlessly circulating and comprise for receiving the filter rods 11 a plurality of roller element 39 or rollers which are arranged between the conveyor chains 33. Many roller elements 39 are arranged close to each other to form a support surface 40 for the filter rods 11.
  • the roller elements 39 are formed or arranged along the entire length of the conveyor chains 35, 36. For purposes of better clarity, the roller elements 39 are only partially shown in the figures.
  • Two adjacent roller elements 39 which are cylindrical, each form a trough for receiving the filter rods 11.
  • the adjacent roller element 39 however, have a distance which on the one hand is so small that the filter rods 11 can not slip, and on the other hand is so large, that air can flow between adjacent roller elements 39. In other words, the bearing surface 40 formed by the roller elements 39 is permeable to air.
  • the roller elements 39 are rotatably mounted on the conveyor chains 35, 36.
  • the drive of the roller elements 39 and the rotation thereof takes place in particular by frictional engagement.
  • the support surface 40 is assigned a guide element 41 at a distance.
  • the guide element 41 which is preferably arranged stationary, may be formed, for example, by two guide webs 42, 43 spaced apart from one another, which are arranged between the conveyor chains 35, 36 and above the support surface 40, so that the filter rods 11 are virtually sandwiched between the roller elements 39 on one side and the guide rods 42, 43 on the other Lying side.
  • the guide webs 42, 43, etc. ensure that the filter rods 11 rotate during transport about their central or rotational axis, the guide webs 42, 43 hold the filter rods 11 during the predominantly vertical transport on the support surface 40th
  • the conveying elements 33 are preferably designed and set up as vertical conveyors.
  • the vertically oriented conveying elements 33 are arranged one behind the other, wherein the adjacent conveying elements 33 are connected to each other by means of the transfer drums 34.
  • means 44 for separating the filter rods 11 are provided on the input side.
  • the means 44 may also have sliding elements, by means of which the one-line incoming filter rods 11 are distributed over two tracks.
  • the means 44 may include elements for pitch change.
  • the conveying elements 33 may also be designed as one-lane or more than two lanes. In the example shown, two heating zones 18, 19 and a cooling zone 20 are provided. Of course, almost any number of modules 32 can be arranged one behind the other.
  • the suction air, which is supplied to the conveying elements 33 in the heating zones 18, 19, is heated.
  • the suction air which is supplied to the conveying element 33 in the cooling zone 20 is optionally not heated or even cooled.
  • the products or rod-shaped articles namely in particular the filter rods 11 are separated by means of the device 14 and the drum 15 and individually inserted into the receptacles 26 of the conveyor chain 25, wherein the filter rods 11 are transverse to their longitudinal extent in the transport direction T.
  • the spaced apart in the transport direction T filter rods 11 are then inserted by means of the conveyor chain 25 through the opening 22 in the hot air oven 16.
  • the filter rods 11 successively pass through a first heating zone 18 and a second heating zone 19.
  • the heating zones 18, 19 there is a previously set temperature profile, which may be the same or different for both heating zones 18, 19.
  • heating zones 18, 19 air sucked in from the surroundings is preferably heated by means of radiant heaters or the like and swirled by the means 21.
  • the heated and fluidized hot air then circulates in the heating zones 18, 19, the Filter rods 11 are uniformly applied to both from above and from below and from the side with the hot air.
  • the hot melt adhesive contained in the filter rods 11 Due to the uniform loading of the filter rods 11 with hot air, these or more precisely the hot melt adhesive contained in the filter rods 11 are brought to its melting temperature.
  • the filter material as a hot melt adhesive polyethylene (PE briefly) was added, the filter rods 11 are heated to about 150 ° C.
  • other hot melt adhesives require different melting temperatures that can be individually adjusted for each heating zone 18, 19.
  • contact points form between the individual fibers of the filter material. In this state, the filter rods 11 are soft and plastically deformable.
  • the cooling zone 20 of the cooling device 17 connects.
  • the filter rods 11 are cooled to approximately room temperature. This can e.g. be done by the filter rods 11 are cooled with ambient air, wherein the sucked ambient / indoor air is swirled by the means 21.
  • the ambient air within the cooling device 17 can also be cooled by the cooling unit 24, namely to temperature values which are below the room temperature.
  • the filter rods 11 In the cured state of the filter rods 11, these are no longer plastically deformable and directly for further processing / storage or the like used.
  • the cured filter rods 11 are then discharged through the opening 23 of the device 13 and fed to a transport unit, a storage medium or a device for further processing.
  • the transport of the filter rods 11 through the heating zones 18, 19 and the cooling zone 20 takes place continuously and at a preselected speed.
  • the residence time of the filter rods 11 in the hot air oven 16 and in the cooling device 17 is controlled by the speed of the conveyor chain 25.
  • the filter rods 11 are held by the cover member 27 in the receptacles 26. In other words, the cover member 27 prevents the filter rods 11 from flying out of the seats 26 due to the swirling air.
  • the method described can also be carried out with heating in one or more than two heating zones. The same applies to the cooling or curing.
  • the method has been described for transporting the filter rods 11 in one plane. However, there is also the possibility that the filter rods in several tracks / tracks next to each other or in several levels one above the other through the hot air oven 16 and the cooling device 17 are transported.
  • the filter rods 11 are heated in the same way uniformly and continuously until melting of the hot melt adhesive and cooled to cure.
  • the single-web or multi-web fed filter rods 11 are separated by the means 44 and stored by a drum arranged on the input side to the first conveyor element 33.
  • the filter rods 11 are in troughs which are transverse to the transport direction T.
  • the filter rods 11 are held by means of negative pressure on the conveyor element 33. More specifically, the filter rods 11 are sucked by the negative pressure to the support surface 40.
  • the bearing surface 40 forming roller elements 39 are driven by frictional engagement. By the rotating roller elements 39, the filter rods 11 rotate about their central or rotational axis. Since the suction air is heated in the heating zone 18 and 19, the filter rods 11 are acted upon directly with the warm air.
  • the filter rods 11 pass successively through the modules 32 arranged one behind the other, wherein the transfer is effected by the transfer drum 34.
  • the filter rods 11 are first guided substantially vertically downwards, then deflected around the roller 38 and then again guided substantially vertically upwards.
  • the cooling zone 20 wherein the suction air is then either not heated or even cooled.
  • the filter rods 11 are removed in a known manner from the transfer drum 34.

Landscapes

  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)
  • Filtering Materials (AREA)
  • Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Tunnel Furnaces (AREA)
  • Adhesives Or Adhesive Processes (AREA)

Claims (39)

  1. Procédé de chauffage et de durcissement de tiges de filtres (11) constituées d'au moins un matériau de filtre ainsi que d'une colle thermofusible liant le matériau de filtre, caractérisé en ce que les tiges de filtres (11) sont transportées en couche unique et individuellement l'une après l'autre à travers un four à air chaud (16) comprenant au moins une zone de chauffage (18, 19), et à travers un dispositif de refroidissement (17) comprenant au moins une zone de refroidissement (20), les tiges de filtres (11) étant, de manière homogène et continue, pendant le transport à travers le four chaud (16) et à travers le dispositif de refroidissement (17), tout d'abord réchauffées à une température légèrement supérieure à la température de fusion de la colle thermofusible pour faire fondre la colle thermofusible, et ensuite refroidies pour durcir la colle thermofusible.
  2. Procédé selon la revendication 1, caractérisé en ce que les tiges de filtres (11), après leur sortie du four à air chaud (16), sont refroidies dans le dispositif de refroidissement (17) sensiblement à la température ambiante.
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce que les tiges de filtres (11) sont transportées à travers plusieurs zones de chauffage (18, 19) à l'intérieur du four à air chaud (16) et à travers une zone de refroidissement (20) à l'intérieur du dispositif de refroidissement (17).
  4. Procédé selon l'une des revendications 1 à 3, caractérisé en ce que les tiges de filtres (11) sont transportées transversalement à leur prolongement longitudinal à travers le four à air chaud (16) et à travers le dispositif de refroidissement (17).
  5. Procédé selon l'une des revendications 1 à 4, caractérisé en ce que les tiges de filtres (11) sont transportées à travers le four à air chaud (16) et à travers le dispositif de refroidissement (17) au moyen d'une unité de transport (12) qui présente des logements individuels (26) pour recevoir les tiges de filtres (11).
  6. Procédé selon la revendication 5, caractérisé en ce que les tiges de filtres (11), pendant le transport à travers le four à air chaud (16) et à travers le dispositif de refroidissement (17), sont maintenues par un élément de recouvrement (27) ou analogue dans les logements (26) respectifs de l'unité de transport (12).
  7. Procédé selon la revendication 5, caractérisé en ce que les tiges de filtres (11), pendant le transport à travers le four à air chaud (16) et à travers le dispositif de refroidissement (17), sont maintenues au moyen d'une dépression dans des auges de l'unité de transport (12).
  8. Procédé selon la revendication 7, caractérisé en ce que les tiges de filtres (11), pendant le transport à travers le four à air chaud (16) et à travers le dispositif de refroidissement (17), sont amenées à tourner autour de leur axe central ou de rotation.
  9. Procédé selon la revendication 7 ou 8, caractérisé en ce que l'air d'aspiration destiné à créer la dépression est réchauffé à l'intérieur du four à air chaud (16) de sorte que les tiges de filtres (11) reçoivent directement l'air chaud.
  10. Procédé selon l'une des revendications 1 à 9, caractérisé en ce que l'air chaud dans le four à air chaud (16) et/ou l'air froid dans le dispositif de refroidissement (17) est amené à tourbillonner.
  11. Procédé selon l'une des revendications 1 à 10, caractérisé en ce que les tiges de filtres (11) sont transportées sur plusieurs niveaux à travers le four à air chaud (16) et à travers le dispositif de refroidissement (17).
  12. Procédé selon l'une des revendications 3 à 11, caractérisé en ce que les différentes zones de chauffage (18, 19) et la zone de refroidissement (20) sont réglées et régulées en température indépendamment l'une de l'autre.
  13. Procédé selon l'une des revendications 1 à 12, caractérisé en ce que les tiges de filtres (11) reçoivent, sur toute leur périphérie, par conséquent de tous côtés, d'abord de l'air chaud, puis de l'air froid.
  14. Procédé selon l'une des revendications 1 à 13, caractérisé en ce que l'on utilise de l'air ambiant comme air froid pour le refroidissement ou le durcissement des tiges de filtres (11).
  15. Procédé selon la revendication 14, caractérisé en ce que l'air ambiant est en plus refroidi par un groupe réfrigérant (24) ou analogue.
  16. Procédé selon l'une des revendications 5 à 15, caractérisé en ce que les tiges de filtres (11) sont isolées individuellement d'un flux massique avant leur dépose sur l'unité de transport (12).
  17. Procédé selon l'une des revendications 5 à 16, caractérisé en ce que la durée de séjour des tiges de filtres (11) dans le four à air chaud (16) et le dispositif de refroidissement (17) est commandée par la vitesse de l'unité de transport (12).
  18. Procédé selon l'une des revendications 1 à 17, caractérisé en ce que les tiges de filtres (11) sont chauffées à environ 150°C dans le four à air chaud.
  19. Dispositif pour chauffer et durcir des tiges de filtres (11) constituées d'un matériau de filtre ainsi que d'une colle thermofusible liant le matériau de filtre, comprenant un dispositif (13) pour réchauffer et durcir les tiges de filtres (11) ainsi qu'une unité de transport (12) pour transporter les tiges de filtres (11) à travers le dispositif (13), caractérisé en ce que le dispositif (13) est conçu pour le réchauffage et le durcissement continus et homogènes des tiges de filtres (11) et comprend un four à air chaud (16) doté d'au moins une zone de chauffage (18, 19), et un dispositif de refroidissement (17) disposé derrière le four à air chaud (16) dans la direction de transport T des tiges de filtres (11), doté d'au moins une zone de refroidissement (20), et en ce que l'unité de transport (12) est conçue pour transporter les tiges de filtres (11) en couche unique et individuellement à travers le four à air chaud (16) et le dispositif de refroidissement (17).
  20. Dispositif selon la revendication 19, caractérisé en ce que le four à air chaud (16) présente deux zones de chauffage (18, 19) ou davantage.
  21. Dispositif selon la revendication 19 ou 20, caractérisé en ce que l'unité de transport (12) comprend une chaîne transporteuse (25) ou analogue, la chaîne transporteuse (25) présentant des logements (26) pour recevoir les tiges de filtres (11) sur un plan axialement transversal, de façon que les tiges de filtres, reposant dans un logement (26), soient transportées transversalement à leur prolongement longitudinal.
  22. Dispositif selon la revendication 20, caractérisé en ce qu'est associé à la chaîne transporteuse (25) ou analogue un élément de recouvrement (27) qui s'étend, au moins à l'intérieur du four à air chaud (16) et du dispositif de refroidissement (17), sur toute l'étendue de transport des tiges de filtres (11).
  23. Dispositif selon la revendication 22, caractérisé en ce que l'élément de recouvrement (27) est conçu de manière fixe par rapport à la chaîne transporteuse (25).
  24. Dispositif selon l'une des revendications 21 à 23, caractérisé en ce que la chaîne transporteuse (25) est conçue pour tourner sans fin.
  25. Dispositif selon l'une des revendications 22 à 24, caractérisé en ce que l'unité de transport (12) d'une part et l'élément de recouvrement (27) d'autre part sont conçus pour être perméables à l'air.
  26. Dispositif selon la revendication 19 ou 20, caractérisé en ce que l'unité de transport (12) est formée par un chemin de tambours (29) comprenant des tambours de roulement (31) et des tambours de transfert (30).
  27. Dispositif selon la revendication 19 ou 20, caractérisé en ce que l'unité de transport (12) comprend au moins deux éléments de transport (33) séparés, les éléments de transport (33) étant reliés entre eux par l'intermédiaire d'un tambour de transfert (34) ou analogue.
  28. Dispositif selon la revendication 27, caractérisé en ce que chaque zone de chauffage (18, 19) et chaque zone de refroidissement (20) est dotée de son propre élément de transport (33).
  29. Dispositif selon la revendication 27 ou 28, caractérisé en ce que chaque élément de transport (33) est formé de deux chaînes transporteuses (35, 36) disposées à distance l'une de l'autre, des éléments formant rouleaux (39) étant disposés entre les chaînes transporteuses (35, 36) pour former une surface d'appui (40) pour les tiges de filtres (11).
  30. Dispositif selon la revendication 29, caractérisé en ce que les éléments formant rouleaux (39) sont montés en rotation sur les chaînes transporteuses (35, 36).
  31. Dispositif selon la revendication 29 ou 30, caractérisé en ce que deux éléments formant rouleaux (39) adjacents forment respectivement une auge de réception des tiges de filtres (11).
  32. Dispositif selon la revendication 30, caractérisé en ce que la surface d'appui (40) est perméable à l'air.
  33. Dispositif selon l'une des revendications 27 à 32, caractérisé en ce que les éléments de transport (33) sont conçus et agencés en tant que convoyeurs verticaux.
  34. Dispositif selon l'une des revendications 19 à 33, caractérisé en ce que sont associés au four à air chaud (16) et au dispositif de refroidissement (17) des moyens de tourbillonnement (21) de l'air chaud ou de l'air froid.
  35. Dispositif selon l'une des revendications 19 à 34, caractérisé en ce que les différentes zones de chauffage (18, 19) et la zone de refroidissement (20) peuvent être commandées séparément.
  36. Dispositif selon l'une des revendications 19 à 35, caractérisé en ce qu'un groupe réfrigérant (24) est associé au dispositif de refroidissement (17).
  37. Dispositif selon l'une des revendications 19 à 36, caractérisé en ce que l'unité de transport (12) dépasse, côté entrée, du four à air chaud (16) et, côté sortie, du dispositif de refroidissement (17).
  38. Dispositif selon l'une des revendications 19 à 37, caractérisé en ce qu'est associé au four à air chaud (16), côté entrée, un dispositif (14) ou un moyen (44) pour individualiser les tiges de filtres (11) à partir d'un flux massique.
  39. Dispositif selon l'une des revendications 19 à 38, caractérisé en ce que l'unité de transport (12) est conçue de façon que les tiges de filtres (11) transportées en une couche soient transportables sur plusieurs niveaux à travers le four à air chaud (16) et le dispositif de refroidissement (17).
EP07075851A 2006-09-28 2007-09-27 Procédé et dispositif de chauffage et de durcissement de tiges de filtre Not-in-force EP1905317B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL07075851T PL1905317T3 (pl) 2006-09-28 2007-09-27 Sposób i urządzenie do nagrzewania i utwardzania sztabek filtrowych

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102006047098A DE102006047098A1 (de) 2006-09-28 2006-09-28 Verfahren und Vorrichtung zum Erwärmen und Aushärten von Filterstäben

Publications (2)

Publication Number Publication Date
EP1905317A1 EP1905317A1 (fr) 2008-04-02
EP1905317B1 true EP1905317B1 (fr) 2010-08-25

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EP07075851A Not-in-force EP1905317B1 (fr) 2006-09-28 2007-09-27 Procédé et dispositif de chauffage et de durcissement de tiges de filtre

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EP (1) EP1905317B1 (fr)
JP (1) JP2008079612A (fr)
CN (1) CN101152021B (fr)
AT (1) ATE478572T1 (fr)
DE (2) DE102006047098A1 (fr)
PL (1) PL1905317T3 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB201007946D0 (en) * 2010-05-12 2010-06-30 British American Tobacco Co Filter additive
WO2016016862A1 (fr) 2014-08-01 2016-02-04 Montrade S.P.A. Appareil et procédé pour la production de filtres pour cigarettes ou autres articles à fumer
PL234036B1 (pl) * 2016-09-06 2020-01-31 Int Tobacco Machinery Poland Spolka Z Ograniczona Odpowiedzialnoscia Zespół czyszczący, maszyna przemysłu tytoniowego do produkowania sztabek filtrowych wielosegmentowych i sposób czyszczenia ciągu elementów prętopodobnych
CN114290712B (zh) * 2022-01-24 2024-04-05 广东鑫球新材料科技有限公司 一种高精度温控的纤维棒加热成型装置
CN114762532B (zh) * 2022-05-06 2024-05-17 南通金源新材料有限公司 一种中线胶快速固化装置

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2816165A1 (de) * 1978-04-14 1979-10-25 Hauni Werke Koerber & Co Kg Verfahren und anordnung zum verkleben einer umhuellung fuer rauchartikel oder filter
JPS62250261A (ja) * 1986-04-23 1987-10-31 チッソ株式会社 管状繊維成形体の製造方法
JPH0775648B2 (ja) * 1987-05-19 1995-08-16 チッソ株式会社 円筒状フイルタ−
US4936920A (en) * 1988-03-09 1990-06-26 Philip Morris Incorporated High void volume/enhanced firmness tobacco rod and method of processing tobacco
DE19800683B4 (de) * 1998-01-10 2005-02-24 Inatec Innovative Auftragstechnologie Gmbh Verfahren und Vorrichtung zum kontinuierlichen Auftragen eines Klebstoffes auf die Kanten von faltenförmigen Filtermaterialien, sowie damit hergestellte Filter
DE10008786A1 (de) * 2000-02-24 2001-08-30 Hauni Maschinenbau Ag Fördereinrichtung zum Überführen von Filterstäben der Tabak verarbeitenden Industrie
DE10217410A1 (de) * 2002-04-18 2003-10-30 Hauni Maschinenbau Ag Zigarettenfilter und Verfahren zur Herstellung desselben
EP1464241B1 (fr) * 2003-04-03 2006-10-04 Hauni Maschinenbau AG Procédé pour la produciton d'un tissu pour la production de filtres de l'industrie du tabac et dispositif pour la production d'une tige de filtre
CN100386038C (zh) * 2005-04-08 2008-05-07 梅建华 干法纸卷烟滤棒及其制备的方法

Also Published As

Publication number Publication date
CN101152021A (zh) 2008-04-02
CN101152021B (zh) 2012-03-14
DE102006047098A1 (de) 2008-04-03
JP2008079612A (ja) 2008-04-10
DE502007004842D1 (de) 2010-10-07
ATE478572T1 (de) 2010-09-15
EP1905317A1 (fr) 2008-04-02
PL1905317T3 (pl) 2011-02-28

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