EP2695532B1 - Vorrichtung zum Aufbringen einer flüssigen Substanz auf mindestens ein Band in einer Maschine zur Herstellung von Tabakprodukten - Google Patents

Vorrichtung zum Aufbringen einer flüssigen Substanz auf mindestens ein Band in einer Maschine zur Herstellung von Tabakprodukten Download PDF

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Publication number
EP2695532B1
EP2695532B1 EP20130178697 EP13178697A EP2695532B1 EP 2695532 B1 EP2695532 B1 EP 2695532B1 EP 20130178697 EP20130178697 EP 20130178697 EP 13178697 A EP13178697 A EP 13178697A EP 2695532 B1 EP2695532 B1 EP 2695532B1
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EP
European Patent Office
Prior art keywords
belt
liquid substance
peripheral wall
drum
applicator drum
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
EP20130178697
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English (en)
French (fr)
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EP2695532A1 (de
Inventor
Michele Ferioli
Ivan Eusepi
Massimo Sartoni
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GD SpA
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GD SpA
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Publication of EP2695532A1 publication Critical patent/EP2695532A1/de
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Publication of EP2695532B1 publication Critical patent/EP2695532B1/de
Not-in-force legal-status Critical Current
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    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24C—MACHINES FOR MAKING CIGARS OR CIGARETTES
    • A24C5/00—Making cigarettes; Making tipping materials for, or attaching filters or mouthpieces to, cigars or cigarettes
    • A24C5/005—Treatment of cigarette paper
    • 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
    • B05C19/00—Apparatus specially adapted for applying particulate materials to surfaces
    • B05C19/06—Storage, supply or control of the application of particulate material; Recovery of excess particulate material

Definitions

  • This invention relates to an apparatus for applying a liquid substance to at least one belt in a machine for making tobacco products.
  • the invention relates to an apparatus which can be used for applying to at least one belt of paper for cigarettes coatings of liquid substance, comprising for example an aromatising substance or a substance with a low propensity to combustion.
  • additives which are able to control combustion characteristics are added to a belt of paper for cigarettes and in particular to relative predetermined zones. This operation is most frequently performed during production of the belt, but is sometimes performed on board the machines for the production of cigarettes, see e.g. US 2004/0237979 .
  • the additives are usually applied to the machine in such a way that, in the continuous rod of tobacco which will be wrapped in the belt, the zones for controlling the combustion have an annular shape and are spaced from each other along the longitudinal direction of extension of the belt.
  • Cigarettes made using paper treated in the above-mentioned manner have the advantage of going out after a short time when the smoker stops smoking them, and they are unlikely to start fires if they are left in contact with combustible materials.
  • the aim of this invention is to provide an apparatus for applying a liquid substance to at least one belt in a machine for making tobacco products which overcomes the above-mentioned drawbacks with reference to the prior art.
  • the invention accordingly provides an apparatus for applying a liquid substance to at least one belt in a machine for making tobacco products as described in the appended claims.
  • the numeral 1 denotes a paper belt for cigarettes.
  • the belt 1 has been shown, by way of an example, in the form commonly used in double line machines for the production of cigarettes, and therefore has twice the width of that which can be used in single line machines as it is designed to be subdivided longitudinally into two halves along a longitudinal centre line 2.
  • this invention can also be validly used for manipulating single belts which can be used in single line machines for the production of cigarettes, or for the simultaneous manipulating of two or more different belts.
  • the deposits 4 comprise a substance with a low propensity to combustion, are preferably and by way of an example arranged perpendicular to the line 2, have been applied on the belt 1 in a liquid form and have then been immediately dried.
  • Each coating 4 has a length and a position such as to not touch a side edge zone adjacent to it and the central zone of the belt 1.
  • the cigarettes 5 obtained wrapping tobacco inside the belt 1 have a plurality of coatings 4 distanced from each other and distributed along the cigarettes 5 in such a way as to not be present on their end portions opposite the filter 6 (when present).
  • the coatings 4, in the cigarettes 5, have adopted an annular shape following the wrapping of the belt 1 in a cylindrical shape about the tobacco.
  • Figure 3 shows a schematic and partial view of a machine 7 for the production of cigarettes 5.
  • the machine 7 comprises a section 8 for feeding a continuous flow 9 of tobacco, designed to continuously pour the continuous flow 9 on a horizontal section of a belt 1 of paper (in a machine with one production line) or on two horizontal sections positioned side by side of respective belts made by cutting longitudinally in half the belt 1 in a machine with two production lines.
  • Each belt 1 is wound with a tube shape about the tobacco, to form a continuous cigarette rod using a forming beam, labelled 11 in its entirety. Upstream of the forming beam 11 there are feed means 11' designed to feed the belt 1 longitudinally along a predetermined path.
  • Each belt 1 reaches the forming beam 11 after passing through an apparatus 12, according to this invention, for applying on the belt 1 a liquid substance.
  • the liquid substance can comprise, for example, an aromatising material, or a substance with a low propensity to combustion.
  • the apparatus 12, as shown in Figures 4 to 6 comprises a drum 13 for applying the above-mentioned liquid substance, which revolves continuously, in a clockwise direction in Figures 4 and 6 , about a horizontal axis under the action of motor means not illustrated.
  • the drum 13 is supported in a rotatable fashion by a vertical wall 14 ( Figure 5 ), using a sleeve 16 coaxial with the drum 13 and integral with the wall 14, and it is rotated by a shaft 17 connected to it and contained coaxially inside the sleeve 16.
  • the drum 13 is closed, by walls 18, at its two axially opposite circular sides, and it is defined, at the relative surface portion of cylindrical shape, by a wall or shell 19 with a substantially circular annular shape coaxial with the shaft 17.
  • the wall 19 has a small thickness, preferably between 0.3 and 5 mm, and is equipped ( Figures 4 and 5 ) with a plurality of openings 20 having exactly the arrangement and shape as the coatings 4 to be applied on the belt 1 according to the above-mentioned Figure 1 . More specifically, in the embodiment shown by way of an example the openings 20 are positioned on two annular rows 21 side by side, alongside each other in a direction parallel to the axis A of the shaft 17, with an arrangement equal to that of the coatings 4 shown in Figure 1 .
  • the number of rows 21 of openings 20 should be kept preferably equal to the number of rows of coatings 4 to be applied, and therefore, for example in the presence of one production line, there would preferably be a singe row 21 of openings 20 (there could, however, be more rows, in the case in which every coating 4 is replaced by a plurality of coatings side by side with each other parallel to the axis A of rotation of the drum 13).
  • At least one unit 23 for spraying the above-mentioned liquid substance towards the openings 20 of the wall 19.
  • Each spraying unit 23 comprises two spray guns 24 placed side by side according to a direction parallel to that of the axis A of rotation of the drum 13, having a direction of action substantially radial relative to the drum 13 and supported in a fixed position.
  • Each of the spray guns 24 is equipped with at least one dispensing nozzle 25, located alongside the inner surface of the wall 19 and positioned in such a way as to run alongside in succession the openings 20 of a row 21 as the drum 13 rotates.
  • the two spray guns 24 of each spraying unit 23 could be replaced by a single spray gun (not illustrated) equipped with two dispensing nozzles located in the same position as the dispensing nozzles 25.
  • the spray guns 24 are connected, by conduits 26, to a unit for dispensing the above-mentioned liquid substance represented as a block 27.
  • scraping means comprising at least one scraping device 28 (two in the example shown) designed to remove from the inner surface of the wall 19 the coatings of liquid substance present.
  • Each scraping device 28 comprises a blade 29 positioned in contact with the wall 19, supported by a supporting element 30 which, together with the blade 19 and the wall 19, defines a substantially closed chamber 31 communicating, by a conduit 32, with a suction source schematically represented as a block 32'.
  • At least one scraping device 28 is positioned between the spraying units 23 and the area in which the belt 1 detaches from the drum 13, and at least one further scraping device 28 is positioned downstream of the area in which the belt 1 detaches from the drum 13 with reference to the direction of rotation of the drum 13.
  • the liquid substance removed from the blades 29 of the scraping devices 28 is extracted from the drum 13 by the suction source 32'.
  • the above-mentioned belt 1 when passing through the apparatus 12 for applying the above-mentioned liquid substance, runs alongside the cylindrical wall 19 of the drum 13 along an arc having an amplitude substantially equal to 180°, as it comes into contact with the drum 13 moving forward horizontally coming from the right, and loses contact with the upper zone of the drum 13 to run alongside, along an arch having an amplitude also substantially equal to 180°, a further roller 33 positioned above the drum 13.
  • the roller 33 is rotatable about an axis B parallel to the axis A of rotation of the drum 13, with a direction of rotation opposite to that of the drum 13, and is supported by the above-mentioned wall 14 close to the drum 13.
  • Heating means 34 designed to heat the belt 1 coming from the drum 13 are associated with the peripheral cylindrical surface of the roller 33. Further heating means 34', of per se known type, can be positioned along the trajectory travelled by the belt 1 downstream of the drum 13, in addition or as an alternative to the heating means 34, to heat the belt 1 coming from the drum 13 and favour a fast evaporation of the solvent (usually water) present in the liquid substance applied to the belt 1.
  • a scraping device 35 runs alongside the outer surface 19 of the drum 13 immediately downstream (with reference to the direction of rotation of the drum 13) of the zone of substantial tangency between the drum 13 and the roller 33.
  • the scraping device 35 comprises a box-shaped body 36, having a relative inner chamber 37 positioned adjacent to, and substantially airtight with, the outer surface of the wall 19 and housing inside a blade 38 positioned in contact with the wall 19.
  • the chamber 37 communicates, by a conduit 39, with a suction source schematically represented as a block 40.
  • the liquid substance removed from the blade 38 of the scraping device 35 is extracted from the chamber 37 by the suction source 40.
  • the inner cavity 13' of the drum 13 can be positioned in communication with a suction source schematically represented as a block 41 for constantly removing the vapours and the droplets of liquid substance present inside the inner cavity 13'.
  • the portion of the above-mentioned belt 1 which, when passing through the apparatus 12 for applying the above-mentioned liquid substance, adheres to the cylindrical wall 19 of the drum 13 is run alongside by three suction devices 41' angularly equispaced from each other in pairs about the shaft 17.
  • Each suction device 41' comprises a chamber 42 positioned side by side in a sealed manner with a portion of belt 1, communicating with a suction source 43, and is able to exert suction on the surface of the belt 1 opposite to that on which the above-mentioned liquid substance is applied, for facilitating the entrance of the substance into the inner fibres of the belt 1 due to the negative pressure to which the substance is subjected through the porosity of the paper of which the belt 1 is comprised.
  • suction devices 41 described above could be absent or there may be a different number from that mentioned above.
  • the spray guns 24 are actuated, preferably intermittently and in synchrony with the passage of the openings 20 of the wall 19 in their radius of action, for directing towards the belt 1, through the openings 20 adjacent to the belt 1, coatings 4 of predetermined shape (that of the openings 20) comprising the above-mentioned liquid substance.
  • roller 33 also has the purpose of modifying the alignment of the belt 1 which has just left the drum 13, in such a way that the coatings 4 of liquid substance, at the forming beam 11, are facing upwards in such a way that, in the finished cigarettes 5, they are located inside the cigarettes 5.

Landscapes

  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)
  • Adhesive Tapes (AREA)
  • Materials For Medical Uses (AREA)

Claims (14)

  1. Vorrichtung zum Aufbringen einer flüssigen Substanz auf mindestens ein Band in einer Maschine zur Herstellung von Tabakprodukten, wobei die Vorrichtung Beschickungsmittel (11') umfasst, die das Band (1) längs entlang eines vorgegebenen Wegs beschicken, sowie eine Trommel (13) zum Aufbringen von Beschichtungen (4) von flüssiger Substanz auf eine Oberfläche des Bands (1), wobei die Aufbringtrommel (13) um ihre Achse (A) drehbar ist, aufweisend eine im Wesentlichen zylindrische Umfangswand (19), laufend teilweise neben dem Band (1), das vorgeschoben wird, bei Betrieb anschlagend gegen die Umfangswand (19), und versehen an der Umfangswand (19) mit einer Vielzahl an Öffnungen (20), die die Innenseite der Aufbringtrommel (13) mit dem Abschnitt des Bands (1) in Kommunikation setzen, der neben der Umfangswand (19) läuft; dadurch gekennzeichnet, dass sich im Innenraum der Aufbringtrommel (13) mindestens eine Spritzeinheit (23) befindet, die ausgestaltet ist, um bei Betrieb zerstäubte flüssige Substanz zu den an das Band (1) angrenzenden Öffnungen (20) zu leiten.
  2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass jede Spritzeinheit (23) mindestens eine Spritzpistole (24) umfasst, um die Beschichtungen (4) an flüssiger Substanz durch die Öffnungen (20) der Umfangswand (19) auf das Band (1) zu leiten.
  3. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, dass jede Spritzpistole (24) intermittierend betätigt wird, um die Beschichtungen (4) an flüssiger Substanz durch die Öffnungen (20) der Umfangswand (19) auf das Band (1) zu leiten.
  4. Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, dass jede Spritzpistole (24) synchron mit dem Durchgang der Öffnungen (20) der Umfangswand (19) in dessen Wirkungsbereich betätigt wird.
  5. Vorrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass sie Heizmittel (34, 34') zum Erhitzen des aus der Aufbringtrommel (13) laufenden Bands (1) umfasst, um eine schnelle Verdampfung des in der auf das Band (1) aufgebrachten flüssigen Substanz enthaltenen Lösungsmittels zu fördern.
  6. Vorrichtung nach Anspruch 5, dadurch gekennzeichnet, dass die Heizmittel (34) mit einer Walze (33) verbunden sind, die sich gegenläufig zur Aufbringtrommel (13) dreht und neben dem aus der Aufbringtrommel (13) laufenden Band (1) läuft.
  7. Vorrichtung nach Anspruch 6, dadurch gekennzeichnet, dass sie zusätzliche Heizmittel (34') umfasst, die im Hinblick auf die Beschickungsrichtung des Bands (1) nach der Walze (33) angeordnet sind, die sich gegenläufig zur Aufbringtrommel (13) dreht.
  8. Vorrichtung nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass sie erste Schabemittel (35) umfasst, verbunden mit der äußeren Oberfläche der Umfangswand (19) der Aufbringtrommel (13), um auf dieser Oberfläche enthaltene flüssige Substanz zu entfernen.
  9. Vorrichtung nach Anspruch 8, dadurch gekennzeichnet, dass sie erste Saugmittel (40) umfasst, um die von der Umfangswand (19) der Aufbringtrommel (13) entfernte flüssige Substanz von den ersten Schabemitteln (35) zu entfernen.
  10. Vorrichtung nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, dass sie zweite Schabemittel (28) umfasst, verbunden mit der inneren Oberfläche der Umfangswand (19) der Aufbringtrommel (13), um auf dieser Oberfläche enthaltene flüssige Substanz zu entfernen.
  11. Vorrichtung nach Anspruch 10, dadurch gekennzeichnet, dass sie zweite Saugmittel (32') umfasst, um die von der Umfangswand (19) der Aufbringtrommel (13) entfernte flüssige Substanz von den zweiten Schabemitteln (28) zu entfernen.
  12. Vorrichtung nach Anspruch 10 oder 11, dadurch gekennzeichnet, dass die zweiten Schabemittel mindestens eine Schabevorrichtung (28) umfassen, die zwischen den Spritzeinheiten (23) und dem Bereich, in dem sich das Band (1) von der Aufbringtrommel (13) löst, angeordnet sind, und mindestens eine zusätzliche Schabevorrichtung (28), die mit Bezug auf die Drehrichtung der Aufbringtrommel (13) nach dem Bereich, in dem sich das Band (1) von der Aufbringtrommel (13) löst, angeordnet ist.
  13. Vorrichtung nach einem der Ansprüche 1 bis 12, dadurch gekennzeichnet, dass sie zusätzliche Saugmittel (41) umfasst, um den Dampf und die Tropfen flüssiger Substanz, die im inneren Hohlraum (13') enthalten sind, aus dem inneren Hohlraum (13') der Aufbringtrommel (13) zu entfernen.
  14. Vorrichtung nach einem der Ansprüche 1 bis 13, dadurch gekennzeichnet, dass sie mindestens eine Saugvorrichtung (41') umfasst, umfassend eine Kammer (42), angeordnet auf abgedichtete Weise neben einem Abschnitt des Bands (1), der neben der Umfangswand (19) der Aufbringtrommel (13) läuft.
EP20130178697 2012-08-08 2013-07-31 Vorrichtung zum Aufbringen einer flüssigen Substanz auf mindestens ein Band in einer Maschine zur Herstellung von Tabakprodukten Not-in-force EP2695532B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT000440A ITBO20120440A1 (it) 2012-08-08 2012-08-08 Apparecchiatura per la applicazione di una sostanza liquida ad almeno un nastro in una macchina per la produzione di articoli da fumo.

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Publication Number Publication Date
EP2695532A1 EP2695532A1 (de) 2014-02-12
EP2695532B1 true EP2695532B1 (de) 2015-04-15

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EP20130178697 Not-in-force EP2695532B1 (de) 2012-08-08 2013-07-31 Vorrichtung zum Aufbringen einer flüssigen Substanz auf mindestens ein Band in einer Maschine zur Herstellung von Tabakprodukten

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IT (1) ITBO20120440A1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112371443A (zh) * 2020-10-19 2021-02-19 昆明鼎承科技有限公司 一种卷烟接装纸上胶系统

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4843670A (en) * 1986-08-21 1989-07-04 Kanebo, Ltd. Method for coloring textile using a color supply drum and a color suction drum
US7047982B2 (en) * 2003-05-16 2006-05-23 R.J. Reynolds Tobacco Company Method for registering pattern location on cigarette wrapping material
JP2008534795A (ja) * 2005-03-23 2008-08-28 フィリップ・モーリス・プロダクツ・ソシエテ・アノニム 幅の広い高速ウェブに材料を付加する方法及び機器
US8646463B2 (en) * 2005-08-15 2014-02-11 Philip Morris Usa Inc. Gravure-printed, banded cigarette paper
US9220297B2 (en) * 2009-08-07 2015-12-29 R. J. Reynolds Tobacco Company Materials, equipment, and methods for manufacturing cigarettes

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ITBO20120440A1 (it) 2014-02-09

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