EP2641484A2 - Dispositif de préparation de tiges de l'industrie de traitement du tabac et procédé de préparation de fibres terminales pour la fabrication d'un faisceau de fibres de l'industrie de traitement du tabac - Google Patents

Dispositif de préparation de tiges de l'industrie de traitement du tabac et procédé de préparation de fibres terminales pour la fabrication d'un faisceau de fibres de l'industrie de traitement du tabac Download PDF

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Publication number
EP2641484A2
EP2641484A2 EP20130158886 EP13158886A EP2641484A2 EP 2641484 A2 EP2641484 A2 EP 2641484A2 EP 20130158886 EP20130158886 EP 20130158886 EP 13158886 A EP13158886 A EP 13158886A EP 2641484 A2 EP2641484 A2 EP 2641484A2
Authority
EP
European Patent Office
Prior art keywords
fibers
fiber
conveying channel
conveying
channel
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.)
Withdrawn
Application number
EP20130158886
Other languages
German (de)
English (en)
Other versions
EP2641484A3 (fr
Inventor
Alexander Buhl
Erich Berger
Stefan Mündel
Andreas Reichert
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
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 Hauni Maschinenbau GmbH filed Critical Hauni Maschinenbau GmbH
Publication of EP2641484A2 publication Critical patent/EP2641484A2/fr
Publication of EP2641484A3 publication Critical patent/EP2641484A3/fr
Withdrawn legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES OF CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D3/00—Tobacco smoke filters, e.g. filter tips or filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces of cigars or cigarettes
    • A24D3/02—Manufacture of tobacco smoke filters
    • A24D3/0204—Preliminary operations before the filter rod forming process, e.g. crimping, blooming
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES OF CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D3/00—Tobacco smoke filters, e.g. filter tips or filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces of cigars or cigarettes
    • A24D3/02—Manufacture of tobacco smoke filters
    • A24D3/0204—Preliminary operations before the filter rod forming process, e.g. crimping, blooming
    • A24D3/0208—Cutting filter materials
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G19/00—Combing machines
    • D01G19/06—Details
    • D01G19/14—Drawing-off and delivery apparatus
    • D01G19/18—Roller, or roller and apron, devices, e.g. operating to draw-off fibres continuously
    • D01G19/20—Roller, or roller and apron, devices, e.g. operating to draw-off fibres continuously operating to draw-off fibres intermittently

Definitions

  • the invention relates to a fiber processing apparatus of the tobacco-processing industry, by means of the fibers, in particular finite filter fibers, the tobacco-processing industry are processed.
  • the invention further relates to a process for the preparation of finite fibers for producing a fiber strand, in particular filter strand, the tobacco-processing industry.
  • Fig. 22 of the EP 1 464 241 B1 and the corresponding figure description of this show a processing device for finite fibers.
  • fiber mixtures are delivered to a storage shaft and discharged by means of a racket roller into a shaft, wherein the fibers are conveyed in the shaft by means of an air flow.
  • the airflow is separated from the fibers at the end of the duct.
  • the fibers are caught by a slow-running feed roller and conveyed against a trough and a subsequent leaf spring battery.
  • This results in a thin compact fiber cake which is promoted and compressed between the feed roller, the trough and the leaf spring battery.
  • the fiber cake is detected and taken over by a high-speed roller.
  • This roller is part of a carding device that ensures that the fibers are accelerated and separated, and then ejected tangentially upwards into a channel air flow.
  • the thus accelerated and separated fibers are then later mixed with other fibers, to then a fluidized bed conveyor, to which a Saugstrang makeuper connects, to be promoted.
  • a Saugstrangzierer On the Saugstrangier then forms a fiber filter strand, which is formed in a subsequent strand forming device to a filter strand, which is preferably coated with a wrapping material.
  • the treatment of the fibers should be such that a particularly uniform distribution or density of Fibers are provided for further processing.
  • a fiber processing device of the tobacco-processing industry by means of the fibers, in particular finite filter fibers, the tobacco processing industry are processed, comprising a stowage for receiving and passing finite fibers, a Auskarmmwalze for combing out fibers from the Stumbleacht, wherein in the conveying direction of the fibers downstream of the Ausrithmmwalze a delivery channel connects, on which a Druckluftinjektor is arranged, and wherein in the conveying direction of the fibers downstream of the conveying channel a connection to a separating device, in particular to a carding device is provided.
  • the basic idea of the invention is to ensure a more uniform flow of fibers by entraining the fibers via a compressed air injector, which introduces compressed air into a conveying channel, and to carry them to a carding device.
  • the fibers pass through this, starting from the Ausurammwalze to Druckbuchinjektor a suction path, which is preferably arranged between the Ausurammwalze and the location of the Druckbuchinjektors in the conveyor channel, which then followed by a pressure section downstream of the negative pressure section of the conveyor channel.
  • the separating device which is preferably designed as a carding device or carding machine, it is preferable to ensure a calming of the fibers and a formation of non-woven or fiber cake.
  • the Druckbuchinjektor divides the conveyor channel in a Saugluftrange and a compressed air line.
  • the compressed air injector is in this case preferably arranged at a reversal point or a kink point of the delivery channel.
  • the delivery channel is preferably in the conveying direction of the fibers downwards, namely at an angle of 0 to 15 degrees to the vertical, aligned.
  • the conveying channel is preferably arranged at an angle of 0 to 30 degrees, in particular 10 to 20 degrees, to the horizontal, namely slightly sloping.
  • the carding device preferably comprises at least two, in particular three, carding rollers, which are increasingly rapidly rotatable or rotated in the conveying direction of the fibers, a singling takes place in the carding device.
  • the fiber cake formed in front of the carding device is introduced into the carding device.
  • the fiber cake which is formed very uniformly by the fiber preparation device according to the invention from the density, is then separated by the separating device, in particular carding device, and preferably discharged directly into a suction shaft at the outlet of the separating device, in which the separated fibers are transported in the direction of a Saugstrang makeupers on which then forms a fiber strand.
  • the rollers of the carding device are preferably equipped with PSDGgarnituren.
  • the rolling speeds are increasing from roller to roller in the conveying direction of the fibers. This allows a very good separation of the fibers.
  • the delivery channel widens in the conveying direction of the fibers, in particular in the vertical, at least in sections.
  • This section widening is particularly preferably done by the Druck Kunststoffinjektor to the connection to the Separating device or up to a predetermined distance upstream of the connection to the separating device.
  • a calming and slowing down of the fibers takes place, which can thus form a uniform fiber cake or a uniform fiber fleece.
  • the delivery channel is preferably formed in this area as a diffuser.
  • the conveying channel is formed as a suction path between the Ausippommwalze and the Druckbuchinjektor.
  • an air opening is arranged upstream of the doffer. Through this air opening, air from the environment can flow into the suction path, so that accordingly air can flow into the negative pressure section of the conveying channel.
  • the air opening is preferably provided in an air duct, which preferably leads purified air.
  • an air opening can be provided in this air shaft, which introduces secondary air into the air shaft.
  • the Druck povertyinjektor comprises a nozzle bar having nozzles, at least part of which are directed to walls of the conveying channel, which is arranged in the conveying direction of the fibers downstream of the Druckbuchinjektors. Due to this fanning out of the compressed air flow starting from the compressed air injector into the delivery channel, a homogenization of the delivery of the fibers takes place.
  • a feed roller is arranged as a connection to the separating device, which is designed to feed a fiber cake to the separating device to promote.
  • a fiber-air separation device is provided on at least one wall of the conveying channel.
  • the fiber-air separation device may be formed like a comb. Behind the ridges or the comb can be a suction or more suction can be provided to dissipate the excess air.
  • the discharged air or excess air is then preferably cleaned, in particular separated from fibers. A portion of the excess air is then directed into the duct, which is provided upstream of the doffer. So then closes the air circulation, in which part of the already used air is reused.
  • a device narrowing the conveying channel is provided on a downstream part of the conveying channel on at least one wall of the conveying channel, which device is resilient. It is thereby preferably achieved that the cross-sectional position of the fiber cake in the conveying channel is variable in this area. In particular, this avoids a vortex formation of air and fibers on the walls, so that a very uniform Faservlies- or fiber cake formation is possible.
  • the resiliently formed narrowing device is preferably arranged in the vicinity of or adjacent to the connection to the separating device.
  • the device narrowing the delivery channel is preferably formed as a leaf spring, for example of a metal, to which preferably a felt material is applied, which ensures the seal against the wall to which the leaf spring is attached.
  • the seal may also be against a wall adjacent to the wall to which the leaf spring is attached, or both walls adjacent to that wall.
  • the doffer roller is divided into n sections in the circumferential direction, each section having a row of pins arranged in a line, n being a natural number, ranging in particular from 1 to 10.
  • n being a natural number, ranging in particular from 1 to 10.
  • four sections may be provided, i. a total of four rows of pins arranged in a line.
  • the lines may be arranged obliquely to the axis of rotation of the Ausurammwalze. It is then so that at times during operation only one section is in operative connection with the fibers in the stowage bay. This leads to a very uniform Ausurammung of fibers from the Stumbleacht.
  • the Ausurammwalze is preferably operated at a speed between 500 and 3000 revolutions per minute, in particular at 1000 revolutions per minute.
  • a strand manufacturing device of the tobacco processing industry in particular for the production of at least one Filter strand or at least one tobacco rod, provided with a fiber processing device according to the invention.
  • the separating device adjoins the fiber preparation device, which empties the fibers preferably directly into a suction shaft of a suction belt conveyor. It can also be isolated fibers discharged into two suction wells to which then each a Saugstrang considerer connects or the suction shaft is divided into two shafts and then leads to a respective Saugstrang employer.
  • the object is further achieved by a process for the preparation of finite fibers for producing a fiber strand, in particular filter strand, the tobacco processing industry, wherein the fibers are sucked on the way to a separating device and then compressed to a fiber cake at the entrance of the separating device or build up adjacent to a connection to the separating device.
  • the fibers accumulate before the suction and are combed out by a Auskmmwalze so that they experience an acceleration in the suction direction.
  • the fibers are conveyed by means of compressed air in a conveying channel which widens in the conveying direction. As a result, the fibers slow down in the conveying direction, with a corresponding can build prescribable pressure above atmospheric pressure.
  • the fibers are separated from the compressed air.
  • the width of the forming fiber cake is variable by a device narrowing the delivery channel, which is resilient.
  • Fig. 1 schematically shows a fiber processing apparatus according to the invention 1 of the tobacco processing industry, by means of the finite fibers 2 can be prepared accordingly.
  • the fibers 2 pass from the top into a stowage bay 10 above the stowage shaft an upper shaft is provided, which is not shown.
  • the conveying air with which the fibers are conveyed into the stowage shaft 10 is deposited via, for example, not shown combs.
  • the fibers then pass into the illustrated stowage 10 and accumulate there or form there a fiber cake or a fiber fleece 2 '.
  • the fiber conveying direction 12 It is the fiber conveying direction 12 shown, ie in the storage shaft 10 down into the effective range of a feed roller 5.
  • the feed roller 5 detects the nonwoven fabric.
  • the nonwoven fabric By rotation of the feed roller 5 against the trough 6 and the spring 7, the nonwoven fabric is compacted into a thin web. This web is cut off by the doffer 11, which may also be referred to as a doffer roll.
  • the resulting pre-separated fibers or flakes are thrown into the suction section 13 and the conveying channel 13, respectively.
  • the delivery channel 13 extends due to a negative pressure effect of a Druckmaschineinjektors 14 partly air from the duct 8 and additionally secondary secondary air through the opening 16 from the atmosphere. With this air, the fibers in the conveying channel 13, which is designed as a suction section, conveyed or transported in the suction direction 12 '.
  • the Auskmmwalze 11 combs the aufschauernden fibers 2, which in Fig. 1 the sake of clarity are not shown, but then in Fig. 2 , and conveys them further down into a delivery channel 13.
  • a negative pressure With a suction 12 '. This negative pressure arises because a compressed air flow 28 is introduced through a compressed air injector 14 into the delivery channel 13 '.
  • the air from the duct 8 consists in the upper part of purified air, which comes from the suction lines 30, 30 '.
  • the air coming there is cleaned accordingly and cleaned so at least partially or at least to a certain extent fed to the duct 8.
  • the correspondingly mixed air together with fibers enters the widening conveyor channel 13 'in the fiber conveying direction 12.
  • the widening of the conveyor channel 13' forms a diffuser.
  • the conveying speed is reduced and built up according to pressure.
  • the fibers then pass into the downstream portion of the conveyor chute 13 'in the region of ridges 21, 21' which allow separation of the conveying air from the fibers.
  • the conveying air is then conveyed away via corresponding suction lines 30, 30 ', whereas in the region of the combs 21, 21' in the conveying channel 13 'then a fiber cake is formed, which is constructed very homogeneously.
  • the corresponding walls 18, 18 ' are turned by means of a leaf spring 22 on one side and a leaf spring 22', as in FIG Fig. 3 recognizable, sealed on the other side.
  • the seal may also be provided as an alternative or in addition to the walls 17, 17 'to which the leaf springs are attached.
  • the sealing is done via corresponding leaf springs 22 and 22 ', which are provided on the walls 17 and 17' side facing with a felt and preferably protrude laterally into the shaft at an angle of 40 °.
  • the leaf springs 22, 22 ' adjust due to their flexibility to the occurring lateral offsets of the fiber cake.
  • the appropriately formed fiber cake is then fed through a feed roller 19 and the carding device 15 is supplied.
  • a strand production device in particular a filter strand production device, is shown schematically.
  • the pent-up fibers form a corresponding fiber fleece or pent-up fibers 2 '.
  • the nonwoven fabric is detected by the feed roller 5 and by rotation against a trough 6, which in Fig. 2 not shown and according to a spring 7, which is also in Fig. 2 not shown, stored. This results in a thin fleece of fibers, which compacts accordingly.
  • the Auskarmmwalze 11 combs fibers from the web and conveys them in a vertical or substantially vertically arranged conveying channel 13, in which a corresponding Saugluft Buffalo Society or a corresponding suction section is provided, which promotes the fibers 2 in the suction direction 12 '.
  • the Druck Kunststoff Kunststoffinjektor 14 fan-shaped compressed air into the delivery channel 13 'from. It is correspondingly a compressed air flow 28 shown.
  • the fibers 2 move in the fiber conveying direction 12 in the direction of the downstream part of the conveyor shaft 13 'and form there a fiber cake 20 from.
  • the trained fiber cake has, for example, a vertical height of 1 to 5 cm, preferably 4 cm.
  • the feed roller 19 accordingly conveys a fiber cake to the carding device 15 on.
  • the carding device 15 in this embodiment comprises three rollers 16, 17 and 18, which have an increasing speed in the fiber conveying direction.
  • the corresponding rollers 16, 17 and 18 are equipped with shege leopardgarnituren.
  • the roller speeds are increasing from roller 16 to roller 18.
  • the fibers After the fibers have been held for a rotation of about 180 ° in the clothing of the roller 16, the fibers are transferred tangentially to the counter rotating roller 17. Since the roller 17 rotates faster than the roller 16 and in particular has a finer Sge leopard- or Trapez leopardgarnitur, there is a longitudinal alignment, parallelization and separation of the fibers in the transfer. After the fibers have been held in the clothing of the roller 17 approximately 180 ° long, the fibers are transferred tangentially to the turn in opposite directions rotating roller 18. Since the roller 18 rotates faster than the roller 17 and in particular has a finer SAge leopardgarnitur, there is a longitudinal alignment, parallelization and separation of the fibers in the transfer.
  • the fibers are tangential delivered up into a suction chute 27 which is completed by a suction belt conveyor 26.
  • Saugstrang alterer 26 forms a filter fiber strand 25, which is conveyed away in the strand conveying direction 29, which points into the drawing sheet inside and then as usual a strand forming set is wrapped with a wrapping material strip and is finally cut into filter rods of desired length.
  • Very homogeneous filter fiber strands or filter fiber rods are formed by the invention.
  • Fig. 3 schematically shows a section of the fiber processing apparatus 1 according to the invention in a plan view, however, a portion of the wall 18 has been removed.
  • the side walls 17 and 17 'of the delivery channel 13' are shown in a downstream end of the fiber preparation device 1.
  • a feed roller 19 as a connection to the separating device, which decreases the fiber cake 20 formed and further promotes.
  • the fiber cake 20, which is formed from the conveyed fibers 2 is removed or removed in the left region, in order to be able to show the comb 21 'there.
  • leaf springs 22 and 22' are arranged, which are designed to be movable in the spring direction 32 and 32 '. These leaf springs ensure that a sealing of the conveyor channel in particular to the walls 18 and 18 'or in addition or alternatively to the walls 17, 17' can be made so that an overpressure at the end of the conveyor channel 13 'can form to a corresponding Fiber cake, the even is trained to mold.
  • the leaf springs 22 and 22 ' ensure that corresponding vortices that could create holes in the forming fiber cake are prevented.
  • the leaf springs 22 and 22 ' provide a width b of the fiber cake.
  • the leaf spring 22 may be according to felt on the respective wall to which the leaf spring is mounted, facing side attached and / or the felt 34, 34 'may be attached to the leaf spring itself.
  • Behind the leaf springs 22 and 22 'stop blocks 33, 33' or blocks are arranged, which prevent fibers from accumulating in the flow shadow of the leaf springs 22, 22 '. Accumulating fibers in the flow shadow of the leaf springs 22, 22 'are disadvantageous in that these accumulated fibers would dissolve from time to time and then be drawn in as an excess amount from the feed roller 19. Such excess amounts would lead to a deterioration of the filter quality.
  • the Aburammwalze 11 is provided with corresponding lines of writing 23, 23 ', 23 ", 23'".
  • a Abkarmmwalze 11 in which a Abkarmmwalze 11 is shown in a view schematically, four rows of pins are provided. Accordingly, each row of pins is arranged in an associated section. In Fig. 4 two sections A1 and A2 are shown. The respective rows of pins thus extend over a quarter of the circumference of the Abrithmmwalze 11 and extend in a roll of the roller in a plane in a straight line from one end of the Ausklammwalze 11 to the other end of the Ausklammwalze 11.
  • the fibers first pass through an area at atmospheric pressure, namely in the stowage bay 10.
  • a vacuum area then follows, namely in the substantially vertically arranged conveying channel 13 into the upstream area of the conveying channel 13 'directly following the compressed air injector. It then forms a higher pressure in the fiber conveying direction 12 in the direction of the end of the conveying channel 13 ', whereby a fiber cake 20 is formed.
  • the overpressure is correspondingly expanded via openings or suction openings and / or suction elements, so that during the removal of the fiber cake by a feed roller 19, there is again preferably substantially atmospheric pressure.
  • the fibers are accelerated again to be delivered isolated in a suction shaft. Subsequently, the fibers collect on a suction belt conveyor 26 to a filter fiber strand 25 and are further processed into a filter strand and then to filter rods.
  • Fiber processing device fibers 2 ' pent-up fibers 5 feed roller 6 trough 7 feather 8th airshaft 9 Air flow direction 10 accumulating shaft 11 combing roller 12 Fiber conveying direction 12 ' suction 13, 13 ' delivery channel 14 compressed air injector 15 carding 16 air opening 17, 17 ' wall 18, 18 ' wall 19 feed roller 20 fiber cake 21, 21 ' Comb 22, 22 ' leaf spring 23, 23 ', 23 ", 23'" pin row 24 pen 25 Filter tow 26 suction rod 27 suction well 28 Compressed air flow 29 Strand conveying direction 30, 30 ' suction 31, 31 ' suction 32, 32 ' spring direction 33, 33 ' stop block 34, 34 ' felt b width A1, A2 section

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)
  • Preliminary Treatment Of Fibers (AREA)
EP13158886.5A 2012-03-20 2013-03-13 Dispositif de préparation de tiges de l'industrie de traitement du tabac et procédé de préparation de fibres terminales pour la fabrication d'un faisceau de fibres de l'industrie de traitement du tabac Withdrawn EP2641484A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102012204443A DE102012204443A1 (de) 2012-03-20 2012-03-20 Faseraufbereitungsvorrichtung der Tabak verarbeitenden Industrie und Verfahren zur Aufbereitung von endlichen Fasern zum Herstellen eines Faserstrangs der Tabak verarbeitenden Industrie

Publications (2)

Publication Number Publication Date
EP2641484A2 true EP2641484A2 (fr) 2013-09-25
EP2641484A3 EP2641484A3 (fr) 2015-09-09

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP13158886.5A Withdrawn EP2641484A3 (fr) 2012-03-20 2013-03-13 Dispositif de préparation de tiges de l'industrie de traitement du tabac et procédé de préparation de fibres terminales pour la fabrication d'un faisceau de fibres de l'industrie de traitement du tabac

Country Status (3)

Country Link
EP (1) EP2641484A3 (fr)
CN (1) CN103315396A (fr)
DE (1) DE102012204443A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016012447A1 (fr) 2014-07-22 2016-01-28 Jt International S.A. Procede et appareil pour former un batonnet-filtre
WO2018065749A1 (fr) * 2016-10-05 2018-04-12 British American Tobacco (Investments) Limited Procédé et équipement pour rassembler des fibres
US11794424B2 (en) 2017-03-24 2023-10-24 British American Tobacco (Investments) Limited Die, die assembly, equipment and method for forming rods of fibrous material

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110642628A (zh) * 2019-09-27 2020-01-03 康立巧 一种陶瓷纤维的甩丝分离设备

Citations (1)

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Publication number Priority date Publication date Assignee Title
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

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CH313367A (de) * 1951-09-12 1956-04-15 Hauni Werke Koerber & Co Kg Rauchfilterpfropfen von zylindrischer Form und Verfahren zu seiner Herstellung
GB1127315A (en) * 1964-12-31 1968-09-18 Desmond Walter Molins Improvements relating to a continuous rod cigar-making machine
CN101313781A (zh) * 2008-07-16 2008-12-03 云南瑞升烟草技术（集团）有限公司 一种同轴芯滤嘴芯材及其制备方法
CN201444914U (zh) * 2009-06-10 2010-05-05 珠海醋酸纤维有限公司 烟用丝束滤棒加工用开松机
US20110180084A1 (en) * 2010-01-27 2011-07-28 R.J. Reynolds Tobacco Company Apparatus and associated method for forming a filter component of a smoking article

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016012447A1 (fr) 2014-07-22 2016-01-28 Jt International S.A. Procede et appareil pour former un batonnet-filtre
WO2018065749A1 (fr) * 2016-10-05 2018-04-12 British American Tobacco (Investments) Limited Procédé et équipement pour rassembler des fibres
US11272733B2 (en) 2016-10-05 2022-03-15 British American Tobacco (Investments) Limited Methods and equipment for gathering fibres
US12004558B2 (en) 2016-10-05 2024-06-11 British American Tobacco (Investments) Limited Methods and equipment for gathering fibres
US11794424B2 (en) 2017-03-24 2023-10-24 British American Tobacco (Investments) Limited Die, die assembly, equipment and method for forming rods of fibrous material
US11945178B2 (en) 2017-03-24 2024-04-02 British American Tobacco (Investments) Limited Methods and equipment for forming tubes of fibrous material
US12030264B2 (en) 2017-03-24 2024-07-09 British American Tobacco (Investments) Limited Methods and equipment for forming tubes of fibrous material

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Publication number Publication date
CN103315396A (zh) 2013-09-25
DE102012204443A1 (de) 2013-09-26
EP2641484A3 (fr) 2015-09-09

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