WO2024033754A1 - Installation de production de cigarettes - Google Patents

Installation de production de cigarettes Download PDF

Info

Publication number
WO2024033754A1
WO2024033754A1 PCT/IB2023/057822 IB2023057822W WO2024033754A1 WO 2024033754 A1 WO2024033754 A1 WO 2024033754A1 IB 2023057822 W IB2023057822 W IB 2023057822W WO 2024033754 A1 WO2024033754 A1 WO 2024033754A1
Authority
WO
WIPO (PCT)
Prior art keywords
manufacturing machine
production plant
pieces
aromatic
output
Prior art date
Application number
PCT/IB2023/057822
Other languages
English (en)
Inventor
Monica BACCHI
Original Assignee
G.D S.P.A.
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 G.D S.P.A. filed Critical G.D S.P.A.
Publication of WO2024033754A1 publication Critical patent/WO2024033754A1/fr

Links

Classifications

    • AHUMAN NECESSITIES
    • A24TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24CMACHINES FOR MAKING CIGARS OR CIGARETTES
    • A24C5/00Making cigarettes; Making tipping materials for, or attaching filters or mouthpieces to, cigars or cigarettes
    • AHUMAN NECESSITIES
    • A24TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24CMACHINES FOR MAKING CIGARS OR CIGARETTES
    • A24C5/00Making cigarettes; Making tipping materials for, or attaching filters or mouthpieces to, cigars or cigarettes
    • A24C5/32Separating, ordering, counting or examining cigarettes; Regulating the feeding of tobacco according to rod or cigarette condition
    • A24C5/322Transporting cigarettes during manufacturing
    • AHUMAN NECESSITIES
    • A24TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24CMACHINES FOR MAKING CIGARS OR CIGARETTES
    • A24C5/00Making cigarettes; Making tipping materials for, or attaching filters or mouthpieces to, cigars or cigarettes
    • A24C5/47Attaching filters or mouthpieces to cigars or cigarettes, e.g. inserting filters into cigarettes or their mouthpieces

Definitions

  • the present invention relates to a production plant for the production of multi-component cigarettes, each of which comprises a plurality of pieces alongside each other, at least one piece of which consists of a filtering element and at least one other piece consists of an aromatic element, preferably a tobacco-based aromatic element.
  • a production plant for the production of multi-component cigarettes comprises a manufacturing machine configured to produce cylindrical tobacco-based aromatic pieces, and an assembling machine that is configured to produce the cigarettes and has an input connected to an output of the manufacturing machine in order to receive the aromatic pieces from the manufacturing machine.
  • Patent applications DE102007030275A1, US2006201523A1, and GB 1442751A describe a production plant for the production of cigarettes, each of which comprises at least one aromatic piece with a cylindrical shape and at least one filtering piece with a cylindrical shape; the production plant comprises: a manufacturing machine configured to produce the aromatic pieces, preferably containing tobacco, and an assembling machine that is configured to produce the cigarettes and has an input connected to an output of the manufacturing machine in order to receive the aromatic pieces from the manufacturing machine.
  • the object of the present invention is to provide a cigarette production plant, which has reduced overall dimensions, maximizes long-term productivity (e.g., the average number of cigarettes produced in an eight-hour shift) and is, at the same time, easy and inexpensive to manufacture.
  • FIG. 1 is a schematic view of a multi-component cigarette contained in a rigid cigarette pack
  • FIG. 2 is a perspective and schematic view of a production plant for the production of multi-component cigarettes made in accordance with the present invention
  • FIG. 3 is a front view, partially deformed for the sake of clarity, of a manufacturing machine and a part of an assembling machine of the production plant in Figure 2, which are connected to each other by a connection system;
  • FIG. 4 is a schematic view of an orienting device that is the end part of the manufacturing machine
  • FIG. 5 is a front view of the assembling machine of the production plant in Figure 2;
  • Figures 6 and 7 are a front view and a rear view, respectively, of the manufacturing machine coupled to the connection system shown in Figure 3;
  • FIG. 8 is a plan view of the connection system shown in Figure 3 between the manufacturing machine and the assembling machine.
  • FIG. 9 is a front view of the manufacturing machine coupled to a different embodiment of the connection system.
  • number 1 indicates, as a whole, a rigid cigarette pack containing within a group of cigarettes 2.
  • each cigarette 2 comprises a plurality of pieces 3 and 4 alongside each other; in particular, one tobacco-based aromatic piece 3 and four different filtering pieces 4 are provided (e.g., the filtering pieces 4 could comprise a PLA filtering piece 4, a cellulose acetate filtering piece 4, an activated carbon filtering piece, and a tubular filtering piece 4).
  • the filtering pieces 4 could comprise a PLA filtering piece 4, a cellulose acetate filtering piece 4, an activated carbon filtering piece, and a tubular filtering piece 4).
  • the various pieces 3 and 4 are enclosed and held together by two wrapping sheets 5 and 6 superimposed on each other. According to other embodiments, not shown, the number, function, and arrangement of the pieces 3 and 4 and wrapping sheets 5 and 6 may be different.
  • number 7 indicates, as a whole, a production (processing) plant for the production of multi-component cigarettes 2.
  • the production plant 7 comprises, upstream to downstream, a manufacturing machine 8 for the production of tobacco-based aromatic pieces 3, and an assembling machine 9.
  • the manufacturing machine 8 is the beginning of the production line and produces the aromatic pieces 3 whereas the assembling machine 9 receives the aromatic pieces 3 from the manufacturing machine 8 and produces the multi-component cigarettes 2 by assembling the aromatic pieces 3 with the filtering pieces 4. That is, an output of the manufacturing machine 8 is connected to an input of the assembling machine 9 to supply the aromatic pieces 3 to the assembling machine 9.
  • the manufacturing machine 8 is configured to crimp or cut a tobacco-based band longitudinally into strips and then impart a cylindrical shape to the crimped or cut tobacco-based band, which is stabilized by wrapping a wrapping sheet around the tobacco-based band.
  • the manufacturing machine 8 comprises (at least) one forming beam 10 configured to wrap a wrapping sheet around the tobaccobased band to form a longitudinally fed continuous rod, and a cutting head 11 configured to transversely cut the continuous rod in order to separate the longitudinally fed aromatic pieces 3 from the continuous rod.
  • the manufacturing machine 8 comprises an orienting device 12 (arranged downstream of the cutting head 11 and shown in Figure 4), which receives the longitudinally fed cigarettes 2 and releases the transversely fed cigarettes 2 to the output of the manufacturing machine 8; in this way, at the output of the manufacturing machine 8, the cigarettes 2 are fed transversely.
  • the manufacturing machine 8 can be made as described in patent application EP3473111A1 or patent application EP3469923A1.
  • the assembling machine 9 is configured to manufacture a group of pieces 3 and 4 consisting of an aromatic piece 3 and filtering pieces 4 (to which, according to other embodiments not shown, also at least one non-filtering piece could be added) and to wrap the wrapping sheets 5 and 6 around the group of pieces 3 and 4.
  • the assembling machine 9 can be manufactured as described in patent application WO2014064655A2.
  • the production plant 7 comprises a compensating store 13 interposed between the output of the manufacturing machine 8 and the input of the assembling machine 9 in order to temporarily compensate for the differences in speed of the machines 8 and 9.
  • the compensating store 13 has the function of ‘ decoupling" the two machines 8 and 9, i.e., allowing the two machines 8 and 9 to operate (obviously for relatively short periods of time) at different operating speeds (understood as the number of products processed in the unit of time).
  • the compensating store 13 is arranged above the level of the machines 8 and 9 (i.e., higher than the machines 8 and 9); in particular, the compensating store 13 is arranged above the manufacturing machine 8 (but alternatively it could be arranged above the assembling machine 9 or partially above the manufacturing machine 8 and partially above the assembling machine 9).
  • the compensating store 13 is connected to the output of the manufacturing machine 8 by a vertical upward conveyor 14 and is connected to the input of the assembling machine 9 by a vertical downward conveyor 15; in particular, the assembling machine 9 comprises a hopper 16, which is configured to contain a mass of aromatic pieces 3 and receives the aromatic pieces 3 from the manufacturing machine 8, and thus the vertical downward conveyor 15 ends into the hopper 16 of the assembling machine 9.
  • the compensating store 13 interposed between the manufacturing machine 8 and the assembling machine 9 could be of the type described in patent application EP3514086A1.
  • the aromatic pieces 3 are fed in masses, i.e., they are grouped together to form a mass of aromatic pieces 3 consisting of several layers of aromatic pieces 3 superimposed on each other (an example of a mass of aromatic pieces 3 is shown in Figure 4).
  • the aromatic pieces 3 enter the hopper 16 of the assembling machine 9 en masse whereas the aromatic pieces 3 exit the manufacturing machine 8 individually (i.e., one at a time); accordingly, between the output of the manufacturing machine 8 and the input of the compensating store 13, the aromatic pieces 3 must be grouped together to form a mass (consisting of several layers of aromatic pieces 3 superimposed on each other) which can be fed to the compensating store 13.
  • the conversion from single flow to mass flow of the aromatic pieces 3 takes place at the output of the orienting device 12, i.e., in the orienting device 12 the aromatic pieces 3 are fed individually (as shown in Figure 4) whereas downstream of the orienting device 12 the aromatic pieces 3 are grouped together en masse (as shown in Figure 4).
  • the conversion from single flow to mass flow of the aromatic pieces 3 takes place further downstream of the orienting device 12 and at the end of a train of transferring drums 17, which rotate around corresponding horizontal rotation axes 18 and receive the single-flow fed aromatic pieces 3 from the orienting device 12, which is the output of the manufacturing machine 8.
  • the orienting device 12 which receives the longitudinally fed cigarettes 2 and releases the transversely fed cigarettes 2; the transversely fed cigarettes 2 exiting the orienting device 12 are fed by the train of transferring drums 17 towards the compensating store 13.
  • the compensating store 13 (arranged higher than the machines 8 and 9 and above the manufacturing machine 8) is interposed between the output of the manufacturing machine 8 and the input of the assembling machine 9 and therefore the single flow of aromatic pieces 3 exiting the manufacturing machine 8 is directed upwards and is converted into a mass flow (therefore, the aromatic pieces 3 are in mass when they enter the compensating store 13, when they exit the compensating store 13 and when they enter the hopper 16 of the assembling machine 9).
  • the manufacturing machine 8 comprises operating members (which carry out the actual processing of the materials to obtain the final product, i.e., the aromatic pieces 3) and a base which rests on the floor and supports the operating members.
  • the base of the manufacturing machine 8 has a vertical front wall or face and a vertical rear wall or face opposite each other, and the operating members of the manufacturing machine 8 are only mounted on the front wall of the base (i.e., on the front wall of the manufacturing machine 8).
  • the output of the manufacturing machine 8 is arranged in the area of the front wall of the base (i.e., of the front wall of the manufacturing machine 8); on the other hand, in the embodiment illustrated in Figures 3 and 6-8, the output of the manufacturing machine 8 is arranged in the area of the rear wall of the base (i.e., of the rear wall of the manufacturing machine 8).
  • a transfer conveyor which originates from an output of the manufacturing machine 8, ends in an input of the assembling machine 9 and has: a vertical upward branch (which includes the vertical upward conveyor 14) connected (directly or indirectly) to the output of the manufacturing machine 8, a vertical downward branch (which includes the vertical downward conveyor 15) connected to the input of the assembling machine 9 (i.e., to the hopper 16 of the assembling machine 9), and a (substantially) horizontal branch which is interposed between the two vertical branches, is arranged above the machines 8 and 9 and also comprises the compensating store 13.
  • an initial section of the vertical upward branch 14 consists of the train (succession) of transferring drums 17 which rotate around corresponding horizontal rotation axes 18.
  • the manufacturing machine 8 is connected directly to the assembling machine 9 without any compensating store 13, and the assembling machine 9 has no hopper 16.
  • the train of transferring drums 17 described above can directly and continuously feed a drum at the input of the assembling machine 9. That is, in this embodiment, the aromatic pieces 3 always remain in a single flow and hence exit the manufacturing machine 8 individually and enter the assembling machine 9 individually (the latter no longer including the hopper 16 designed to contain a mass of aromatic pieces 3).
  • the orienting device 12 comprises an end drum 19 which receives from the cutting head 11 the longitudinally fed aromatic pieces 3 (i.e., they advance parallel to their longitudinal axis) in an input station SI and releases, at the output, the transversally fed aromatic pieces 3 (i.e., they advance perpendicular to their longitudinal axis) in an output station S2.
  • the end drum 19 rotates stepwise around a rotation axis 20 (which is perpendicular to the plane of Figure 4 and parallel to the longitudinal feeding direction of the aromatic pieces 3) and has a series of peripheral seats 21, each suitable to receive and hold by suction a corresponding aromatic piece 3; in use, each aromatic piece 3 enters longitudinally into a respective peripheral seat 21 of the end drum 19 in the input station SI and transversely exits the respective peripheral seat 21 in the output station S2.
  • the orienting device 12 also comprises a rotating drum, which is arranged downstream of the end drum 19 (that is, it receives the aromatic pieces 3 from the end drum 19) and is configured to impart a 90° rotation to the aromatic pieces 3; in particular, the rotating drum is of a 'conical' type and has an external surface (in which peripheral seats are obtained) inclined at 45° relative to its axis of rotation.
  • the rotating drum is configured to receive the transversely fed aromatic pieces 3 from the end drum 19, impart a 90° rotation to the transversely fed aromatic pieces 3 and release the transversely fed aromatic pieces 3 rotated by 90° (compared to how they exited the end drum 19).
  • the rotating drum releases the aromatic pieces 3, after the 90° rotation, to the train (succession) of transferring drums 17, which rotate around corresponding horizontal rotation axes. In this way, the aromatic pieces 3, which downstream of the cutting head
  • the orienting device 12 has no rotating drum and therefore only comprises the end drum 19; downstream of the orienting device 12 there is a horizontal conveyor device 22, which receives the single aromatic pieces 3 in the output station S2 and arranges the single aromatic pieces 3 into a mass of aromatic pieces 3 formed by several superimposed layers of single aromatic pieces 3.
  • the output of the manufacturing machine 8 and the input of the assembling machine 9 are connected by the interposition of a compensating store 13 (made for example as described in patent application EP3514086A1).
  • the transferring drums 17 are not present and the orienting device 12 is devoid of the rotating drum (i.e., it is made as illustrated in Figure 4).
  • the orienting device 12 releases a mass of aromatic pieces 3 to the horizontal conveyor device 22 (shown in Figures 6 and 7), which in turn releases a mass of aromatic pieces 3 to a vertical conveyor device 23 (arranged behind the manufacturing machine 8), which feeds a mass of aromatic pieces 3 upwards and defines the vertical upward conveyor 14.
  • a (substantially) horizontal conveyor device 24 which connects an output of the conveyor device 23 to an input of the compensating store 13, and a (substantially) horizontal conveyor device 25, which connects an output of the compensating store 13 to an input of the assembling machine 9 (i.e., to the hopper 16 of the assembling machine 9).
  • the conveyor devices 24 and 25 are substantially horizontal and have a modest inclination (in the order of 10°- 15° relative to the horizontal plane) along (at least) part of their length in order to adapt to the vertical positions of the input and output, respectively, of the compensating store 13.
  • the orienting device 12 has no rotating drum (i.e., it does not impart a 90° rotation to the aromatic pieces 3), and the conveyor devices 24 and 25 have, as a whole, an odd number of 90° bends, which impart, as a whole, a 90° rotation to the aromatic pieces 3 (each 90° bend of the conveyor devices 24 and 25 imparts a 90° rotation to the aromatic pieces 3).
  • the conveyor device 24 has three 90° bends whereas the conveyor device 25 has two 90° bends.
  • the orienting device 12 comprises the rotating drum (i.e., it imparts a 90° rotation to the aromatic pieces 3), and thus the conveyor devices 24 and 25 have, as a whole, an even number of 90° bends, which do not impart, as a whole, a 90° rotation to the aromatic pieces 3.
  • the vertical conveyor device 23 is the vertical upward conveyor 14, and the vertical downward conveyor 15 is arranged at the end of the (substantially) horizontal conveyor device 25 and it ends in the hopper 16 of the assembling machine 9.
  • the manufacturing machine 8 is arranged alongside and perpendicularly to the assembling machine 9 to define together an "L" shape in plan; that is, the two machines 8 and 9, as a whole, have an "L” shape in plan since the two machines 8 and 9 are arranged perpendicular to each other. That is, the vertical front wall or face of the manufacturing machine 8 is perpendicular to the front wall or face of the assembling machine 9.
  • the production plant 7 described above has many advantages.
  • the production plant 7 described above allows the assembly or maintenance interventions to be performed faster and more efficiently (even automated, i.e., without the intervention of a human operator).
  • the particular arrangement of the manufacturing machine 8 and assembling machine 9 allows the production efficiency to be increased and, at the same time, the overall dimensions to be significantly reduced.

Landscapes

  • Manufacturing Of Cigar And Cigarette Tobacco (AREA)

Abstract

L'invention concerne une installation de production (7) pour la production de cigarettes (2), comprenant chacune au moins un élément aromatique (3) de forme cylindrique et au moins un élément filtrant (4) de forme cylindrique. L'installation de production (7) comprend : une machine de fabrication (8) configurée pour produire les éléments aromatiques (3) ; et une machine d'assemblage (9), qui est configurée pour produire les cigarettes (2), a une entrée reliée à une sortie de la machine de fabrication (8) afin de recevoir les éléments aromatiques (3) en provenance de la machine de fabrication (8), et est agencée à côté de la machine d'assemblage (9) et perpendiculairement à celle-ci pour définir ensemble une forme en "L" en plan.
PCT/IB2023/057822 2022-08-09 2023-08-02 Installation de production de cigarettes WO2024033754A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT102022000017007 2022-08-09
IT202200017007 2022-08-09

Publications (1)

Publication Number Publication Date
WO2024033754A1 true WO2024033754A1 (fr) 2024-02-15

Family

ID=83899856

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2023/057822 WO2024033754A1 (fr) 2022-08-09 2023-08-02 Installation de production de cigarettes

Country Status (1)

Country Link
WO (1) WO2024033754A1 (fr)

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3235060A (en) * 1962-12-03 1966-02-15 American Mach & Foundry Apparatus for rotating rod shaped objects about their transverse axes
GB1442751A (en) * 1972-05-05 1976-07-14 Molins Ltd Cigarette making machines
US4047536A (en) * 1974-06-19 1977-09-13 Asfour Emil S Method of making cigarettes and a cigarette made according thereto
US20050082141A1 (en) * 2003-10-21 2005-04-21 Hauni Maschinenbau Ag Apparatus and method for the delivery of rod-shaped articles
US20060180166A1 (en) * 2005-02-16 2006-08-17 Marco Bencivenni Method and a unit for testing production quality in a line for manufacturing tobacco products
US20060201523A1 (en) * 2003-11-19 2006-09-14 Hauni Maschinenbau Ag Arrangement for producing filter cigarettes
DE102007030275A1 (de) * 2007-06-28 2009-01-02 Hauni Maschinenbau Ag Vorrichtung und Verfahren zur Herstellung von jeweils mindestens einen Tabakstockabschnitt und mindestens einen Filterstababschnitt aufweisenden Rauchartikeln
DE102012106180A1 (de) * 2012-07-10 2014-01-16 Hauni Maschinenbau Ag Verfahren zum Steuern einer Maschinenkombination und/oder einer Maschine zur Verarbeitung von stabförmigen Artikeln der Tabak verarbeitenden Industrie sowie eine Maschinenvorrichtung dafür
US20150282522A1 (en) * 2012-11-08 2015-10-08 G.D Societa' Per Azioni Cigarette manufacturing assembly machine, and relative assembly method
US20170273352A1 (en) * 2014-09-19 2017-09-28 Philip Morris Products S.A. Method and apparatus for manufacturing aerosol-generating semi-finished products
EP3514086A1 (fr) * 2018-01-19 2019-07-24 G.D Societa' Per Azioni Magasin à capacité variable pour cigarettes
US20200253286A1 (en) * 2017-09-22 2020-08-13 British American Tobacco (Investments) Limited Aerosol-generating material rod segment

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3235060A (en) * 1962-12-03 1966-02-15 American Mach & Foundry Apparatus for rotating rod shaped objects about their transverse axes
GB1442751A (en) * 1972-05-05 1976-07-14 Molins Ltd Cigarette making machines
US4047536A (en) * 1974-06-19 1977-09-13 Asfour Emil S Method of making cigarettes and a cigarette made according thereto
US20050082141A1 (en) * 2003-10-21 2005-04-21 Hauni Maschinenbau Ag Apparatus and method for the delivery of rod-shaped articles
US20060201523A1 (en) * 2003-11-19 2006-09-14 Hauni Maschinenbau Ag Arrangement for producing filter cigarettes
US20060180166A1 (en) * 2005-02-16 2006-08-17 Marco Bencivenni Method and a unit for testing production quality in a line for manufacturing tobacco products
DE102007030275A1 (de) * 2007-06-28 2009-01-02 Hauni Maschinenbau Ag Vorrichtung und Verfahren zur Herstellung von jeweils mindestens einen Tabakstockabschnitt und mindestens einen Filterstababschnitt aufweisenden Rauchartikeln
DE102012106180A1 (de) * 2012-07-10 2014-01-16 Hauni Maschinenbau Ag Verfahren zum Steuern einer Maschinenkombination und/oder einer Maschine zur Verarbeitung von stabförmigen Artikeln der Tabak verarbeitenden Industrie sowie eine Maschinenvorrichtung dafür
US20150282522A1 (en) * 2012-11-08 2015-10-08 G.D Societa' Per Azioni Cigarette manufacturing assembly machine, and relative assembly method
US20170273352A1 (en) * 2014-09-19 2017-09-28 Philip Morris Products S.A. Method and apparatus for manufacturing aerosol-generating semi-finished products
US20200253286A1 (en) * 2017-09-22 2020-08-13 British American Tobacco (Investments) Limited Aerosol-generating material rod segment
EP3514086A1 (fr) * 2018-01-19 2019-07-24 G.D Societa' Per Azioni Magasin à capacité variable pour cigarettes

Similar Documents

Publication Publication Date Title
CN104754963B (zh) 用于生产香烟的装配机以及相关装配方法
US20070004573A1 (en) Apparatus for the processing and/or manufacture of rod-shaped articles of the tobacco-processing industry
EP2916668B1 (fr) Machine d'assemblage de fabrication de cigarette et procédé d'assemblage associé
JP6437130B2 (ja) パッケージの線速度を低下させたパッケージグループ分けユニット
CN102573532A (zh) 用于制造烟草加工行业的多段过滤嘴的机器和方法
CN103732087B (zh) 用于生产过滤嘴香烟的方法和过滤嘴组装机
IT201800011002A1 (it) Dispositivo per il trasferimento di spezzoni di articoli da fumo
WO2024033754A1 (fr) Installation de production de cigarettes
US5701718A (en) Processing machine, particularly a packing machine for cigarettes or similar
EP2633769A1 (fr) Machine de fabrication de filtre de cigarette
RU2748505C2 (ru) Способ и система для изготовления многосегментных изделий табачной промышленности
JP5830344B2 (ja) 喫煙具製造装置で繊維材料に添加要素を供給するためのユニットおよび方法
CN1589687B (zh) 烟草加工业中的杆状制品的加工
EP3702291A1 (fr) Tambour de transfert pour transférer des objets le long d'un trajet circulaire et procédé de réglage pour mettre en uvre un changement de format du tambour de transfert
EP3639680B1 (fr) Ligne de production et procédé de production d'articles en forme de tige de l'industrie du tabac
EP4138586A1 (fr) Procédé et unité pour l'alimentation de segments en forme de tige
CN103371437A (zh) 用于组装过滤嘴段组的装置
CN1671305A (zh) 制造和包装香烟的装置以及相应装置的布置
WO2022229863A1 (fr) Procédé de fabrication et machine de fabrication pour la production d'articles à fumer à chauffage sans combustion
WO2023105407A1 (fr) Procédé et système de fabrication d'articles à segments multiples
CN117562294A (zh) 一种模块化多元滤棒复合机及多元滤棒复合工艺

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 23754442

Country of ref document: EP

Kind code of ref document: A1