EP3659448B1 - Maschine zur herstellung von filtern für rauchartikel - Google Patents

Maschine zur herstellung von filtern für rauchartikel Download PDF

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Publication number
EP3659448B1
EP3659448B1 EP19206915.1A EP19206915A EP3659448B1 EP 3659448 B1 EP3659448 B1 EP 3659448B1 EP 19206915 A EP19206915 A EP 19206915A EP 3659448 B1 EP3659448 B1 EP 3659448B1
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EP
European Patent Office
Prior art keywords
forming
machine according
forming beam
steam flow
parameter
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Application number
EP19206915.1A
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English (en)
French (fr)
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EP3659448A1 (de
Inventor
Nicola Baldanza
Ivan Eusepi
Massimo Sartoni
Luca Federici
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GD SpA
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GD SpA
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Priority to HRP20230163TT priority Critical patent/HRP20230163T1/hr
Publication of EP3659448A1 publication Critical patent/EP3659448A1/de
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    • 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
    • A24D3/0229—Filter rod forming processes
    • A24D3/0233—Filter rod forming processes by means of a garniture
    • 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
    • A24D3/027—Multiple line manufacturing devices

Definitions

  • This invention addresses the technical field of machinery for making articles of the tobacco industry. More specifically, this invention relates to a machine for making filters for smoking articles.
  • filters for smoking articles are made from a strip of filter material, usually cellulose acetate, which is drawn out, stretched and treated with additive materials, in particular plasticizing fluids (triacetin, for example) to form a stream of filter tow.
  • the stream is processed and subjected to the action of process fluids, such as steam, for example, to obtain a filter rod from which individual filter segments are cut.
  • the technical purpose which forms the basis of this invention is to propose a machine for making filters for smoking articles to overcome at least some of the above mentioned disadvantages of the prior art.
  • this invention has for an aim to provide a machine for making filters for smoking articles, capable of allowing improved and more efficient control of the operating parameters of the production process, with special regard to the structural properties of the product to be made and high production capacity.
  • This invention discloses a machine for making filters for smoking articles comprising at least two forming beams placed side by side, each extending predominantly along a longitudinal axis and having an internal channel adapted to form a stream of filter tow.
  • Each forming beam is associated with a respective porous conveyor element configured to slide inside the respective channel and to carry the tow along a feed path parallel to the longitudinal axis.
  • the conveyor element is adapted to comply with the shape of the transverse cross section of the internal channel in such a way as to be at least partly wrapped around the tow.
  • Each forming beam is also provided with a succession of treatment stations located along the feed path of the respective forming beam and comprising at least one nozzle configured to blow a flow of steam into the respective internal channel.
  • the machine of this invention allows achieving optimum control of process parameters with regard to both production speed and product properties, with the guarantee of high product quality.
  • the numeral 1 denotes in its entirety a machine for making filters for smoking articles.
  • the machine of this invention comprises at least two forming beams 2 configured to receive respective streams 3 of filter tow.
  • Each stream 3 of filter tow - cellulose acetate for example - comes from one or more processing stations, not illustrated.
  • the filter tow is drawn out from compressed bales of filter tow material and made to advance through the above mentioned processing stations, not illustrated, where it is first stretched and then impregnated with a plasticizing fluid such as triacetin, for example.
  • a plasticizing fluid such as triacetin, for example.
  • the stream 3 is folded on itself about its longitudinal axis to form a continuous rod 4 of filter material.
  • the filter making machine 1 may also comprise cutting means 5 adapted to cut the rod 4 transversely into a plurality of segments 6 whose longitudinal dimensions are suitable for the subsequent processes.
  • Each forming beam 2 has an internal channel 7 which extends predominantly along a longitudinal axis, adapted to receive the stream 3, and whose transverse cross section changes along the longitudinal axis in such a way as to impart a predetermined shape to the stream 3 of filter tow in order to form the rod 4.
  • the machine 1 also comprises porous conveyor means 9 - for example, a conveyor belt made of material permeable to air and steam - associated with respective forming beams 2 and configured to slide in the channel 7 of the forming beam 2 along the predominant longitudinal axis.
  • porous conveyor means 9 - for example, a conveyor belt made of material permeable to air and steam - associated with respective forming beams 2 and configured to slide in the channel 7 of the forming beam 2 along the predominant longitudinal axis.
  • the porous conveyor means are also configured to carry the stream 3 of filter tow along a feed path 8 coinciding with the longitudinal axis.
  • the conveyor means 9 are adapted to comply with the shape of the transverse cross section of the channel 7 and to be at least partly wrapped around the stream 3.
  • Each forming beam 2 also comprises a succession of treatment stations 10, located along the feed path of the respective forming beam 2 and comprising at least one nozzle 11 configured to blow a flow of steam into the internal channel of the respective forming beam 2.
  • the forming beams 2 are placed side by side and parallel to each other, lying preferably in a plane that is substantially horizontal, that is to say, parallel to the flat surface that supports the machine 1.
  • the internal channels 7 of adjacent forming beams 2 are spaced from each other.
  • the spacing between the internal channels 7 ensures that there is no interference particularly in terms of the operating parameters of the flow of steam that is injected into them.
  • the structure and distribution of the internal channels 7 in the machine 1, are such as to ensure that there is no interaction, especially thermal interaction, between the flows of steam intended for adjacent forming beams 2.
  • Each nozzle 11 is an insert having a substantially annular shape, placed around the respective internal channel 7 and preferably comprising at least two portions made separately.
  • each forming beam 2 comprises a base 2a and a lid 2b which is reclosable on the base 2a along a plane parallel to the predominant longitudinal axis to form the channel 7.
  • the base 2a defines one half-portion of the channel 7, for example, the lower half-portion
  • the cover 2b defines the other half-portion of the channel 7, for example, the upper half-portion, so that the channel 7 is obtained in a configuration where the cover 2b is fitted over the base 2a.
  • each forming beam 2 comprises two parts - the base 2a and the lid 2b - configured to be coupled to each other in order to form the channel 7 in which the filter tow slides and is formed into shape.
  • the base 2a and the lid 2b are provided with respective cavities adapted to house respective portions of the insert making up each nozzle 11 which are inserted and connected therein.
  • the respective bases 2a of the at least two forming beams 2 are made in one piece and the respective lids 2b of the at least two forming beams 2 are made in one piece.
  • each forming beam 2 may have a base 2a and a lid 2b that are independent of those of the other forming beam or beams 2 so that it is possible to work on each one individually, or these component elements may be made in one piece so that opening the lid 2b of one forming beam 2 automatically causes all the lids 2b to be opened, thereby making it possible to work simultaneously on all the forming beams 2 forming part of the machine 1.
  • At least one forming beam 2 comprises adjustment means interposed between the lid 2b and the base 2a; these adjustments are configured to vary the distance between these two elements.
  • each forming beam 2 comprises suitable adjustment means configured to vary the distance between the base 2a and the lid 2b.
  • the lids 2b and the bases 2a of the forming beams 2 are made in one piece, only one forming beam need comprise suitable adjustment means capable of simultaneously varying the distance between each lid 2b and the respective base 2a of each and every forming beam.
  • Each forming beam 2 also comprises at least one sensor 12 for detecting at least one parameter of the steam flow so as to allow monitoring precisely and accurately the properties of the steam fed into the forming beam.
  • the at least one parameter of the steam flow may be one of the following: steam flow rate; steam flow temperature; steam flow pressure.
  • each forming beam 2 further comprises conditioning means 13 configured to vary at least one parameter of the steam flow. This feature ensures that the steam flow supply and application parameters are at all times in line with the specific requirements of the production process to be used and with the properties of the finished product to be made.
  • the parameters of the steam flow supplied to each forming beam 2 can be driven and controlled independently.
  • a single filter making machine can be used to make a plurality of filter rods treated with different parameters in order to make different products in parallel.
  • the machine 1 allows optimizing the production process to ensure the process is controlled precisely in order to make, in parallel, a plurality of filter rods having the exact same properties, thereby maintaining a high level of finished product quality.
  • the machine 1 comprises a control and drive unit 14 connected to each forming beam 2 and configured to enable the respective conditioning means 13 in such a way as to vary the at least one parameter of the steam flow as a function of a value of the at least one parameter detected by the at least one respective sensor 12.
  • the unit 14 allows acting on the conditioning means 13 so that the operating parameters of the steam flow fed to the treatment stations 10 of each forming beam 2 can be modified in order to allow the production process to be precisely and accurately controlled in real time.
  • Such control may be performed both automatically and by an operator.
  • the unit 14 is capable of processing the information received from the sensors 12 and, if it detects that the values received are not in line with preset threshold values and/or parameters, it may selectively enable the conditioning means 13 of one or more forming means 2 independently of each other in order to return the machine 1 to optimum operating conditions, whether such conditions are determined by the properties of the product to be made or by safety conditions of the installation which the machine 1 is part of.
  • the unit 13 may also be equipped with an operator interface terminal on which the values representing the parameters measured by the sensors 12 can be displayed and through which the operator can operate directly on the parameters to enable/disable specific conditioning means to bring these values into line with the required result.
  • the unit 14 is configured to enable, and generally speaking to control, each of the conditioning means 13 independently of every other conditioning means 13.
  • this feature allows operating on the forming beams 2 individually without a change made to the operating conditions of one of them being inevitably applied to all the others, too.
  • the filter making machine 1 comprises at least one feed station 15 configured to generate the steam flow and to feed it to each treatment station 10.
  • the machine 1 thus comprises a feed line 15a which allows placing the at least one feed station 15 in fluid communication with the forming beams 2, specifically with the treatment stations 10.
  • each feed station 15 there may be only one feed station 15 connected to each forming beam 2, hence to each treatment station 10.
  • the feed line 15a branches out immediately upstream of the conditioning means 13 so that the conditioning means 13 can act solely on the respective forming beam 2.
  • the machine 1 may further comprise control means operating on each feed station 15 and configured to vary the at least one parameter of the steam flow as a function of a value of the at least one parameter detected by the at least one sensor.
  • This aspect is particularly important if the sensors 12 detect that the operating parameters differ from the required values to such an extent that they cannot be corrected by simply enabling the conditioning means 14 which operate on the flow of steam that has already been generated.
  • this invention achieves the preset aims by overcoming the disadvantages of the prior art by making available to the user a highly versatile and efficient machine for making filters for smoking articles.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)

Claims (11)

  1. Maschine zur Herstellung von Filtern für Rauchartikel, umfassend mindestens zwei Formungsbalken (2), die nebeneinander angeordnet sind und sich jeweils entlang einer Längsachse erstrecken und einen innenseitigen Kanal (7) aufweisen, der ausgebildet ist, um einen Strangstrom zu formen, wobei ein jeder Formungsbalken (2) mit einem jeweiligen porösen Förderelement (9) assoziiert ist, das ausgelegt ist, um im jeweiligen Kanal (7) verschoben zu werden und den Strang entlang eines Zuführungswegs (8) parallel zur Längsachse zu führen, wobei das Förderelement (9) ausgebildet ist, um mit der Form des Querschnitts des innenseitigen Kanals (7) übereinzustimmen, und mindestens teilweise um den Strang gewickelt ist, und wobei ein jeder Formungsbalken (2) eine Abfolge von Behandlungsstationen (10) aufweist, die entlang des Zuführungswegs (8) des jeweiligen Formungsbalkens (2) befindlich sind und mindestens eine Düse (11) umfassen, die ausgelegt ist, um einen Dampfstrom in den innenseitigen Kanal (7) des jeweiligen Formungsbalkens (2) zu blasen, wobei ein jeder Formungsbalken (2) Aufbereitungsmittel (13) umfasst, die ausgelegt sind, um mindestens einen Parameter des Dampfstroms zu variieren;
    - eine Steuer- und Antriebseinheit (14), die mit einem jeden Formungsbalken (2) verbunden und ausgelegt ist, um jeweilige Aufbereitungsmittel (13) zu aktivieren, die mit einem Formungsbalken (2) assoziiert sind, unabhängig von den Aufbereitungsmitteln (13), die mit mindestens einem anderen Formungsbalken (2) assoziiert sind, sodass mindestens ein Parameter des Dampfstroms variiert wird.
  2. Maschine nach Anspruch 1, wobei die mindestens zwei Formungsbalken (2) parallel zueinander angeordnet sind und in einer im Wesentlichen horizontalen Ebene liegen.
  3. Maschine nach einem oder beiden der vorhergehenden Ansprüche, wobei ein jeder Formungsbalken (2) mindestens einen Sensor (12) umfasst, um mindestens einen Parameter des Dampfstroms zu erfassen.
  4. Maschine nach Anspruch 3, wobei der mindestens eine Parameter mindestens eins der folgenden Elemente umfasst: Dampfdurchsatz, Dampfstromtemperatur, Dampfstromdruck.
  5. Filterherstellungsmaschine nach einem oder mehreren der vorhergehenden Ansprüche, wobei es sich bei einer jeden Düse (11) um einen Einsatz handelt, der im Wesentlichen ringförmig ausgebildet und rund um den jeweiligen innenseitigen Kanal (7) angeordnet ist.
  6. Filterherstellungsmaschine nach einem oder mehreren der vorhergehenden Ansprüche, wobei ein jeder Formungsbalken (2) eine Basis (2a) und einen Deckel (2b) umfasst, der auf der Basis (2a) entlang einer Ebene wiederverschließbar ist, die parallel zur Hauptlängsachse verläuft, um den jeweiligen innenseitigen Kanal (7) zu formen.
  7. Maschine nach Anspruch 6, wobei die jeweiligen Basen der mindestens zwei Formungsbalken (2) jeweils in einem Stück ausgebildet sind und die jeweiligen Deckel der mindestens zwei Formungsbalken (2) jeweils in einem Stück ausgebildet sind.
  8. Filterherstellungsmaschine nach Anspruch 6 oder 7, wobei mindestens einer der Formungsbalken (2) Einstellmittel umfasst, die zwischen dem Deckel (2b) und der Basis (2a) eingesetzt sind, wobei die Einstellmittel ausgelegt sind, um einen relativen Abstand zwischen der Basis (2a) und dem Deckel (2b) zu variieren.
  9. Maschine nach einem oder mehreren der vorhergehenden Ansprüche, umfassend mindestens eine Zuführungsstation (15), die ausgelegt ist, um den Dampfstrom zu generieren, und eine Zuführungslinie (15a), um die mindestens eine Zuführungsstation (15) in Fluidkommunikation mit den Formungsbalken (2) zu setzen.
  10. Maschine nach einem oder mehreren der vorhergehenden Ansprüche, umfassend eine Vielzahl von Zuführungsstationen und eine Zuführungslinie (15a), um eine jede Zuführungsstation in Fluidkommunikation mit einem jeweiligen Formungsbalken (2) zu setzen.
  11. Maschine nach Anspruch 9 oder 10, wenn abhängig von Anspruch 3, umfassend Steuerungsmittel, die auf einer jeden Zuführungsstation (15) arbeiten und ausgelegt sind, um den mindestens einen Parameter des Dampfstroms als eine Funktion eines Werts des mindestens einen, vom jeweiligen Sensor (12) erfassten Parameters zu variieren.
EP19206915.1A 2018-11-06 2019-11-04 Maschine zur herstellung von filtern für rauchartikel Active EP3659448B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
HRP20230163TT HRP20230163T1 (hr) 2018-11-06 2019-11-04 Stroj za izradu filtera za proizvode za pušenje

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT102018000010059A IT201800010059A1 (it) 2018-11-06 2018-11-06 Macchina confezionatrice di filtri per articoli da fumo

Publications (2)

Publication Number Publication Date
EP3659448A1 EP3659448A1 (de) 2020-06-03
EP3659448B1 true EP3659448B1 (de) 2023-01-11

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP19206915.1A Active EP3659448B1 (de) 2018-11-06 2019-11-04 Maschine zur herstellung von filtern für rauchartikel

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EP (1) EP3659448B1 (de)
HR (1) HRP20230163T1 (de)
IT (1) IT201800010059A1 (de)
PL (1) PL3659448T3 (de)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005032366A1 (de) * 2005-07-08 2007-01-11 Hauni Maschinenbau Ag Formatbildungseinrichtung der Tabak verarbeitenden Industrie
ITBO20120106A1 (it) * 2012-03-05 2013-09-06 Montrade Srl Metodo e macchina per la produzione di filtri senza carta per articoli da fumo
ITUB20160197A1 (it) * 2016-01-21 2017-07-21 Gd Spa Macchina confezionatrice di filtri per sigarette e metodo per confezionare filtri per sigarette.

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Publication number Publication date
HRP20230163T1 (hr) 2023-03-31
IT201800010059A1 (it) 2020-05-06
EP3659448A1 (de) 2020-06-03
PL3659448T3 (pl) 2023-04-11

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