EP1464239B1 - Procédé et dispositif pour la production d'une tige de filtre - Google Patents

Procédé et dispositif pour la production d'une tige de filtre Download PDF

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Publication number
EP1464239B1
EP1464239B1 EP03007675A EP03007675A EP1464239B1 EP 1464239 B1 EP1464239 B1 EP 1464239B1 EP 03007675 A EP03007675 A EP 03007675A EP 03007675 A EP03007675 A EP 03007675A EP 1464239 B1 EP1464239 B1 EP 1464239B1
Authority
EP
European Patent Office
Prior art keywords
conveyor
filter rod
fibrous web
rod according
producing filter
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.)
Expired - Lifetime
Application number
EP03007675A
Other languages
German (de)
English (en)
Other versions
EP1464239A1 (fr
Inventor
Stephan Wolff
Thorsten Scherbarth
Alexander Buhl
Peter-Franz Arnold
Uwe Heitmann
Sönke Horn
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
Priority to AT03007675T priority Critical patent/ATE345706T1/de
Application filed by Hauni Maschinenbau GmbH filed Critical Hauni Maschinenbau GmbH
Priority to DE50305744T priority patent/DE50305744D1/de
Priority to ES03007675T priority patent/ES2275036T3/es
Priority to EP03007675A priority patent/EP1464239B1/fr
Priority to DE50305252T priority patent/DE50305252D1/de
Priority to ES03018113T priority patent/ES2269885T3/es
Priority to AT03018113T priority patent/ATE341232T1/de
Priority to EP06009384A priority patent/EP1683432A1/fr
Priority to EP03018113A priority patent/EP1464240B1/fr
Priority to JP2004102610A priority patent/JP4512397B2/ja
Priority to JP2004104195A priority patent/JP2004337161A/ja
Priority to PL366815A priority patent/PL210029B1/pl
Priority to PL366814A priority patent/PL210305B1/pl
Priority to US10/815,979 priority patent/US20040237269A1/en
Priority to US10/815,997 priority patent/US20040250823A1/en
Priority to CN200410034246.7A priority patent/CN1535628B/zh
Priority to CNA2004100342448A priority patent/CN1535630A/zh
Publication of EP1464239A1 publication Critical patent/EP1464239A1/fr
Application granted granted Critical
Publication of EP1464239B1 publication Critical patent/EP1464239B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
    • A24D3/02—Manufacture of tobacco smoke filters
    • A24D3/0229—Filter rod forming processes
    • A24D3/0233—Filter rod forming processes by means of a garniture

Definitions

  • the invention relates to a filter rod manufacturing method and a filter rod manufacturing apparatus, comprising a Aufschauervoriques by means of the individual filter materials are transported on a conveyor to form a nonwoven fabric, a format device in which a wrapping material is wound around the nonwoven fabric and a device for transferring the nonwoven fabric of the Conveyor on the format device.
  • a method for the preparation of filter materials and a corresponding apparatus for the preparation of filter materials for the production of filters of the tobacco processing industry are known from GB 718 332.
  • snippets of a material are produced by means of a tobacco cutter and these are made of a stranding machine, similar to a cigarette rod making machine, wherein the chips are impregnated with a chemical agent to prevent undesirable taste and to prevent the chips from falling out of the end pieces of the correspondingly made filters.
  • the cut chips are conveyed by means of a roller in the effective range of a spiked roller, and conveyed by means of the spiked roller from the roller on a conveyor belt to be subsequently fed to a further spiked roller, from which the chips are knocked out by means of another spiked roller and be supplied to a format in which the filter strand is formed with a wrapping strip.
  • the snippets consist of materials such as paper, cellulose, textiles, synthetic materials or similar. and have a structure similar to cut tobacco.
  • a filter strand manufacturing apparatus is known in which fibers are torn out in Fig. 5 and the associated figure description by means of a roll of a fiber strand and are brought into the effective range of a transport air stream, which feeds the fibers of a strand manufacturing unit. Also disclosed are filter strand manufacturing apparatus in the other figures and associated text passages in which fibers are torn out of an endless feed of filter material through a respective drum, are popped on a conveyor belt and transferred to a strand forming unit. This happens, however, without transport air.
  • US Pat. No. 3,050,427 discloses an apparatus for producing a nonwoven, wherein fibers are first comminuted and applied to a suction belt conveyor. While looking up at a suction belt or after shuddering as a fleece, the fibers are sprayed with binding material.
  • US-A-2,931,076 discloses the production of fibrous sheets, pelts and mats from fibrous structures by means of an air-laying process.
  • US-A-3 792 943 shows the manufacture of a nonwoven fabric from natural or synthetic fibers such as wood fibers, textile fibers, glass and mineral wool fibers, asbestos fibers and the like, the fibers first being singulated and then applied to a conveyor by means of a transport air stream.
  • natural or synthetic fibers such as wood fibers, textile fibers, glass and mineral wool fibers, asbestos fibers and the like
  • the conveyor is in the context of this invention, in particular a belt conveyor and in particular preferably a suction belt.
  • the fibers have a length which is shorter than a filter or filter element separated from the fiber strand produced, particularly homogeneous filter properties are possible.
  • the fibers which are preferably to be used are thus elongated and relatively thin.
  • additives such as activated carbon granules, triacetin or latex
  • the filter properties are particularly easy to adjust.
  • Carbon reactive granules are added, for example, prior to complete singulation of the fibers or to the fibers being transported to the conveyor.
  • Triacetin or latex as a binder are added, for example, to the quenched fiber fleece in the region of the conveyor.
  • the nonwoven fabric is compacted prior to the step of applying to the wrapping strip, a particularly uniform compaction can be ensured.
  • the compression preferably takes place both vertically and horizontally, that is, for example, from above and below as well as from the sides of the fiber fleece.
  • the fibrous web is formed prior to application to the wrapping strip.
  • the forming step may provide at least the formation of a semicircle transversely to the conveying direction of the nonwoven.
  • a full circle or oval is formed.
  • a filter or a filter element is produced according to the filter strand production method according to the invention by final cutting to length of the produced filter strand.
  • a filter strand manufacturing apparatus comprising a chiller device by means of which discrete filter materials are transported onto a conveyor to form a nonwoven on the conveyor, a format apparatus in which a wrapping material is wrapped around the nonwoven, and a device for transferring the nonwoven from the conveyor to the format apparatus, in that the Aufschaueryor therapies by means of transport air allows transport of the filter materials in the direction of the conveyor, wherein a curing device is provided downstream of the transfer of the nonwoven fabric from the conveyor to the formatting device.
  • a particularly homogeneous nonwoven fabric By transporting the separated filter materials by means of transport air, a particularly homogeneous nonwoven fabric can be produced, so that a particularly homogeneous filter strand and therefore particularly homogeneous filter or filter elements can be produced.
  • the filter properties are to be positively influenced.
  • the conveyor or a part of the conveyor is preferably part of the compacting device.
  • a particularly easy to implement filter strand manufacturing device is given when the conveyor comprises at least one suction belt. If the fibers to be processed are so small that the openings of the suction belt clog quickly, it is advantageous to work with two additional Saugbändem, which are each arranged at approximately right angles on both sides of the first suction belt.
  • a particularly effective transfer of the nonwoven fabric is done by means of compressed air, through which the nonwoven fabric is removable from the conveyor.
  • the device for transferring the nonwoven fabric comprises a conveyor belt
  • the conveyor belt is a suction belt.
  • a particularly preferred embodiment is given when the conveyor belt is bent transversely to the transport direction. In this way, for example, a filter strand which is round or oval in cross-section can be produced in a simple manner.
  • two conveyor belts are provided, which transport the fiber fleece between them.
  • the conveyor belts are designed such that the nonwoven fabric is round or oval malleable.
  • the conveyor belts for example, each form a semicircle or a half oval.
  • the device for transferring the nonwoven fabric comprises a nozzle through which the nonwoven fabric is transportable.
  • the nozzle is designed such that the nonwoven fabric is round or oval malleable.
  • a separating device 10 is shown in a schematic three-dimensional representation.
  • This is a variant of a separating device 10 according to the invention, which in of another European patent application (Ref .: 03 007 672.3) filed by the Applicant entitled "Process for the preparation of finite fibers and finisher for use in the production of filters" on the same date as this application was filed with the European Patent Office.
  • the content of patent application filed on the same date, Ref .: 03 007 672.3 is intended to be incorporated in full in the disclosure of this patent application.
  • the subject of this patent application filed on the same date is to treat fibrous material intended for use in the manufacture of filters accordingly to obtain substantially completely separated fibers and thus a homogeneous filter strand to be made from these fibers.
  • the separating device 10 from FIG. 1 is used for this purpose.
  • the filter material or fiber material is already voraughtzelt in advance and dosed accordingly.
  • the essentially unaccurate fiber material or fiber / fiber group mixture 49 is, for example, as shown schematically in FIG. 4, moved via a stowage shaft 44 and feed rollers 46 into the effective range of a spiked roller 76 which contains the fiber / fiber group mixture vorackzelt ausschlagt.
  • This fiber / fiber group mixture 49 is then gem by the air streams 19 in the screening drums 21.
  • Fig. 1 transported. This takes place via lateral openings 20 in the housing 22.
  • the fiber material is blown in the direction of the longitudinal axes of the screening drums 21.
  • the two-sided blowing of the fiber material counterclockwise results in a circumferential annular flow 23.
  • the annular flow 23 is superimposed by a flow normal or substantially perpendicular to this, which is caused by a vacuum applied to the fluidized bed 14 and an air flow 13.
  • Airflow 13 is an option for larger, heavier fibers, which is not always necessary.
  • the negative pressure prevailing at the fluid bed end 14 is created by the negative pressure in a suction belt conveyor, not shown, which is arranged at the fluidized bed end 14 and the other by the air flow 17, which is conveyed through the suction 16.
  • the normal flow starts above the sieve drums 21 and begins and passes through the sieve drums 21 via their shell openings. The normal flow then passes into the fluidized bed region 11 and passes through it to the end of the 14th
  • the ununsulated or substantially unaccompanied fiber material passes in the drums 21 on the inner circumferential surfaces of the drums 21.
  • the drums 21 rotate in a direction of rotation 24 of the screening drums 21 in a clockwise direction.
  • the essentially unaccurate fiber material mounted on the drum shell surfaces is fed to the separating rollers 26 by the rotating drums.
  • the separating rollers 26 rotate in the direction of rotation 25 counterclockwise. It would also be possible as an alternative, a clockwise rotation. It can also be used all other elastic rotary variants.
  • the fiber groups are thrown so long against the inner surface of the drums 21 until they have dissolved in individual fibers and have passed the shell openings or can pass through the shell openings.
  • a drum with perforated plates or Rundstabgitter can be provided instead of a sieve drum 21, a drum with perforated plates or Rundstabgitter can be provided.
  • the fibers or individual fibers are detected by an air flow and guided or sucked through the radial openings of the drum.
  • the air flow conveys the fibers down to the fluidized bed. Once the fiber-laden flow has reached the fluidized bed, it is deflected and guided along the curved fluidized bed. Due to the centrifugal forces acting on the fibers, the fibers move to the curved guide wall and flow to the suction belt conveyor.
  • the air flowing in above the fibers is deposited on the wedge or separator 70 and discharged via the suction connection 71.
  • Fig. 1 the corresponding fiber streams 18 are shown schematically.
  • individual fibers are detected by an air stream 13 emerging from the nozzle bar 12 and are also supplied to the fluid bed end 14 accordingly.
  • Several nozzle bars can also be provided.
  • the singulation device shown in Fig. 1 corresponds at least partially to that described in WO 01/54873 A1 or US Pat. No. 4,640,810 A from Scanweb, Denmark, or USA.
  • the disclosure of the aforementioned patent application or of the aforementioned US patent is intended to be incorporated in full in the disclosure content of this patent application.
  • the separation is done essentially by interaction of the drums 21 with the rollers and an air flow and in particular by the fact that only isolated fibers have the opportunity to pass through the openings of the drum 21.
  • the flow divider 15 is provided in order to separate air from the fibers.
  • FIG. 2 shows a schematic view of a strand production machine 9.
  • FIG. 3 shows a part of the strand production machine 9 according to the invention from FIG. 2 in a plan view in the direction of the arrow A of FIG. 2, and
  • FIG. 4 shows a side view of the strand production machine 9 according to the invention.
  • Fig. 2 in the direction of arrow B.
  • the unaccurate fiber material 49 passes via the stowage shaft 44 to the metering device 46 or 76, comprising two feed rollers 46, a metering channel which is arranged between the feed rollers 46 and the spiked roller 76 and a spiked roller 76.
  • the direction of the material entry 47 is shown in FIG in drawing plane down, as shown schematically there.
  • the unclarified fiber material 49 is separated in the separation chamber 10. The separation takes place by an interaction of the separating rollers 26 with an air flow 50 and openings in a grid 77, which separates the separation chamber 10 from the space associated with the fluidized bed 11.
  • the air flow generated by the air flow in the exhaust pipe 16 on the fluidized bed 11 promotes the separated fibers 27.
  • the air flow 17 in the exhaust pipe 16 is with respect to its direction in Fig. 3 up out of the plane, as shown in Fig. 3.
  • the air flow 17 also transports excess fibers.
  • the air flow 28 serves to hold the fibers 27 which have been quenched on the suction belt 43 of the suction belt conveyor 32.
  • the separated fibers 27 move on the fluidized bed 11 in the direction of the fluidized bed end 14, on which a suction belt conveyor 32 is arranged.
  • Saugbandreaer 28 prevails by continuous air suction vacuum. This air suction is shown schematically by the air flow 28.
  • the negative pressure sucks the separated fibers 27 and holds them on the air-permeable suction belt of the suction belt conveyor 32.
  • the suction belt 43 moves in the direction of strand production machine 9, that is, in Fig. 2 to the left.
  • a fiber cake 29, which increases in size almost linearly with respect to the stranding machine 9, is formed the suction belt.
  • the heaped-up fiber stream 29 has different strengths and is trimmed at the end of the filling zone of the suction belt conveyor by trimming by a trimming device 31 to a uniform thickness.
  • the trimming device 31 may be a mechanical one, such as trimmer discs or a pneumatic one, for example, air nozzles.
  • the mechanical trim is known per se in cigarette rod making machines.
  • the pneumatic trimming is done in such a way that at the end of the fiber stream 29 a nozzle is arranged horizontally, from which an air jet emerges and tears a part of the fiber stream 29, so that excess fibers 30 are removed. It can find a spot jet nozzle or a flat jet nozzle use.
  • the fiber stream 29 is split into a trimmed fiber strand 33 and a strand of excess fibers 30. It is also possible to grasp and tear away all fibers below a trim level from a jet. The excess fibers are returned to the fiber preparation process and later re-formed into a fiber strand.
  • the trimmed fiber strand 33 is held on the suction belt 43 and moved in the direction of the stranding machine 9.
  • the trimmed fiber strand 33 is a loose nonwoven fabric which is compressed by a compacting belt 35.
  • a roller such as, for example, a press disk 55 (see, for example, FIG. It can also be used several bands or rolls or discs use.
  • the compression belts 48 are shown, which are conical to each other, in Saugband york with the fiber cake.
  • the toothed shape of the compression bands 48 create zones of different density in the compacted fiber cake. In the higher density zones, the filter strand is cut later.
  • the higher fiber density in the filter end area ensures a more compact cohesion of the fibers in this sensitive zone and also a better processing of the filter rods.
  • a compression belt 35 is provided for compressing in the vertical direction In Fig. 2, a compression belt 35 is provided.
  • the trimmed and compacted fiber strand 34 is transferred to the stranding machine 9.
  • the transfer takes place by detaching the compacted fiber strand 34 from the suction belt 43 and placing the fiber strand 34 on a format strip or on a wrapping material strip which is applied to a format strip of the stranding machine 9.
  • the format tape is not shown in the figures. This can be a conventional format strip which is also used in a normal filter rod machine or cigarette rod machine.
  • the transfer is supported by a nozzle 36 directed from above onto the compacted fiber strand 34 and through which an air flow 37 flows.
  • a fiber filter strand 38 is formed, wherein from a bobbin 41, a wrapping material strip 42 is withdrawn and wound around the fiber material as usual.
  • binding components contained in the fiber mixture are superficially heated and fused.
  • the outer layers of bicomponent fibers that may be included in the fiber blend may also be fused to form a bond between the fibers.
  • fiber materials a variety of fibers can be used, which are suitable for the desired filter properties.
  • Fasermaterlallen come, for example, cellulose acetate, cellulose, carbon fibers and multicomponent fibers, especially bicomponent fibers.
  • the different types of fiber are preferably mixed prior to strand formation. It is also possible to add at least one additive.
  • the additive is, for example, a binder such as latex or triacetin or granular material which binds components of the cigarette smoke particularly effectively, such as, for example, activated carbon granules.
  • the fiber length of the fibers used is smaller than the length of the filter or filter element to be produced.
  • the length of the fibers should therefore be between 0.1 mm and 30 mm and in particular between 0.2 mm and 10 mm.
  • the length of the filter to be produced is a conventional filter for a cigarette or a filter segment in multi-segment filters of cigarettes.
  • the average fiber diameter in the range of 10 to 40 .mu.m, in particular 20 to 38 microns and more preferably between 30 and 35 microns, a very homogeneous filter can be produced.
  • the curing device 39 may include a microwave heater, a laser heater, heating plates or sliding contacts. By heating the binding components, for example, the outer layer of bicomponent fibers or latex, the individual fibers combine in the fiber strand and merge superficially.
  • the curing device 39 may also allow for drying of binder added in liquid form. Upon cooling of the fiber strand, the melted areas of the heated binding components harden again. The resulting lattice framework gives the fiber strand stability and hardness.
  • the cured fiber filter strand 38 is cut into filter rods 40.
  • the curing of the filter is also possible after cutting into the filter rods 40.
  • FIG. 5 shows a further embodiment according to the invention of a strand production machine 9 in a schematic representation.
  • 6 shows a part of the strand-making machine 9 in a plan view in the direction of the arrow A of FIG. 5
  • FIG. 7 shows a side view of the strand-making machine 9 according to FIG. 5 in the direction of the arrow B.
  • the singulated fiber material 27 is thrown onto the suction belt 43 from above in this exemplary embodiment, specifically in the transport direction 74.
  • the separating device 10 which is also shown schematically in FIGS. 5 to 7, represents a modified form of the separating device 10
  • In the separating chamber 45 are screening drums 21 which rotate in the direction of the arrow.
  • the spiked rollers 26 are also used in this case to beat apart the not yet isolated fiber material or the contiguous fiber groups in individual fibers, so that the separated fibers can pass through the outlet openings of the screen drum 21 in the hopper 53. By the corresponding air streams and in this case also the gravity, then the isolated fibers 27 reach into the region of the suction belt conveyor 32, which is configured in this case with Saugbandwangen 57.
  • a corresponding fiber stream 29 is thrown on the suction belt 43.
  • Excess fiber material 30 is removed by a trimmer 31 from the remaining fiber strand 33 above it.
  • the trimmed fiber strand 33 is pressed by means of a pressure washer 55, the at the same time in the conveying direction of the strand rear Umlenktrum the suction belt 43 'is compressed.
  • Shortly behind the press disk 55 the compacted fiber strand 34 is held by a suction belt 43 'from above.
  • a negative pressure field 54 is generated by means of an air flow 28.
  • an air flow 37 is provided, which hits through the nozzle 36 on the suction belt.
  • the compacted fiber strand 34 is then removed from the suction belt 43 'by means of an air flow 37 through the nozzle 36 and transferred to a format 56.
  • the compacted fiber strand 34 as usual reaches a wrapping material strip 42, which is conveyed on a format strip.
  • the remaining process steps correspond to those according to FIGS. 2 to 4.
  • FIG. 8 shows a part of a device according to the invention in a schematic view.
  • the suction belt 43 is deflected around deflection rollers 59.
  • the trimming device is not shown in this illustration of FIG. In the region of the churning of the fiber strand 29, individual fibers 27 reach the fiber strand from below.
  • the fiber strand 33 reaches a wrapping material strip 42, which arrives at a format belt 58.
  • the format band 58 and the wrapping material strip 42 are deflected by corresponding rollers 59.
  • the fiber strand 44 reaches the wrapping material strip 42.
  • the beginning of the format 56 is wound in the usual manner of the wrapping material strip 42 around the fiber strand 33.
  • Fig. 9 is a plan view of the device of Fig. 8 is shown, in particular a particularity of the side cheeks 57 is disclosed.
  • the side cheeks 57 which also border on the fiber strand 29 or 33, are designed as suction belts 43, which in turn are again around deflection rollers 59 are deflected.
  • suction belts 43 which in turn are again around deflection rollers 59 are deflected.
  • Fig. 10 shows a schematic three-dimensional representation of a device for transferring the fiber strand from the suction belt 43 on the format 56 and in particular on the wrapping material strip 42.
  • the fiber strand which is not shown in this figure, comes from the lower portion of the suction belt 43, the is deflected over the guide roller 59, in the free space of the opposing belts 62nd
  • the bands 62 which may also be steel bands in particular, are curved and are correspondingly deflected around curved rollers 63.
  • the configuration of the bands 62 results in a corresponding round cavity between two opposite bands 62.
  • the fiber strand 34 passes through this hollow space with a round cross section and is placed on the wrapping material strip 42.
  • the Saugbandwangen 57 are designed as a solid side walls.
  • FIG. 11 shows a section of a strand production device 9 according to the invention in a schematic representation.
  • the correspondingly compacted fiber strand passes into a nozzle 66 and is further conveyed by means of an air stream 67 onto a wrapping material strip 42 which rests on a format belt 58. Subsequently, the fiber strand as usual with the Envelope material strip 42 is wrapped to form a fiber filter strand 38.
  • FIG. 12 shows a section of a further strand production device 9 according to the invention in a schematic representation.
  • the fiber strand 33 conveyed by the suction belt 43 passes into the effective region of a nozzle 68, which applies compressed air 69 to the fiber strand in the region of the deflection roller 65 and thereby removes the fiber strand 33 from the suction belt 43.
  • the angle of the nozzle or the compressed air acting on the fiber strand 33 is adjustable. After detachment of the fiber strand 33 from the suction belt 43, this passes into the annular nozzle 70.
  • the air 67 flowing through the nozzle slot 71 can fulfill various functions, depending on the nozzle design.
  • the function is always such that the vacuum prevailing in the nozzle inlet channel of the nozzle 70 dissolves the fiber strand 33 from the suction belt 43 running on the deflection roller 65, which may also be designed as a pressure disk 65.
  • the fiber strand can allow the fiber strand to be conveyed into the first format-forming hollow cone 72.
  • the compressed air 67 dissolves the strand into individual fibers or fiber groups and thus promotes the individual fibers or fiber groups in the first format-forming hollow cone 72.
  • the compressed air dissolves the strand into individual fibers or fiber groups are conveyed into the first format-forming hollow cone 72 and then into the second format-forming hollow cone 73.
  • the format strip 58 runs with the wrapping material strip 42 lying thereon.
  • the second hollow cone 73 has a smaller taper than the first hollow cone 72.
  • ventilation holes In the first format-forming hollow cone 72 are ventilation holes. These vent holes provide for the air separation of the nozzle air 69 and 67th
  • the fiber strand 33 is transferred as a fiber strand
  • this is formed in the format-forming hollow cones 72 and 73, from the top and from the format in progress format tape 58 from below.
  • the complete transfer of the fiber strand 33 to the format strip or wrapping material strip 42 takes place under the hollow cone 73.
  • individual fibers and fiber groups are pressed by the nozzle air 69 in the format forming hollow cone, it comes to a due to the taper of the hollow cone Jam of the individual fibers and fiber groups, so that forms a new fiber strand.
  • the strand is formed completely in the second hollow cone 73 and transferred at the end of the second hollow cone 73 to the format strip or the wrapping material strip 42.
  • the wrapping material strip 42 is wound around the strand as usual and sealed so as to form the fiber filter strand 38.
  • the invention is to form filter materials made of fine fibers with or without appropriate additives such as. Kohleeducationgranulat or powder in homogeneous filter strands. Accordingly, the various elements or devices are designed to optimally transport, hold or process the materials used.
  • the fibrous materials may be cellulosic fibers, thermoplastic starch fibers, flax fibers, hemp fibers, flax fibers, sheep wool fibers, cotton fibers or multicomponent fibers, in particular bicomponent fibers having a length smaller than the filter to be produced and having a thickness, for example. in the range of 25 and 30 microns.
  • cellulose fibers of the stora fluff EF type untreated from Stora Enso Pulp AB can be used which have an average cross section of 30 ⁇ m and a length of between 0.4 and 7.2 mm.
  • synthetic fibers such as bicomponent fibers
  • fibers of the type Trevira 255 3.0 dtex HM with a length of 6 mm may be used by Trevira GmbH. These have a diameter of 25 microns.
  • synthetic fibers cellulose acetate fibers, polypropylene fibers, polyethylene fibers and polyethylene terephthalate fibers can be used.
  • the additives can be found in the flavor or smoke-influencing materials, such as activated charcoal granules or flavoring agents, and also binders by means of which the fibers can be glued together.

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  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)
  • Nonwoven Fabrics (AREA)
  • Filtering Materials (AREA)
  • Manufacturing Of Cigar And Cigarette Tobacco (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Claims (23)

  1. Procédé pour la production d'une tige de filtre comportant les étapes opératoires suivantes :
    - transport de fibres (27) finies, ayant été pratiquement complètement individualisées et appartenant à au moins une variété de fibres, le transport se faisant à l'aide d'air de transport, en direction d'un convoyeur (32),
    - formation sur une surface du transporteur (32), d'une nappe (29, 33, 34) de fibres (27) se touchant au moins partiellement, à partir des fibres (27) ayant été pratiquement complètement individualisées,
    - mise en place de la nappe (29, 33, 34) sur une bande d'enveloppement (42) et
    - enveloppement de la nappe (29, 33, 34) au moyen de la bande d'enveloppement (42), de l'énergie étant exercée sur la nappe (29, 33, 34) pendant ou après l'enveloppement de la nappe (29, 33, 34) au moyen de la bande d'enveloppement (42), en vue de produire une liaison ferme aux points de contact des fibres (27).
  2. Procédé pour la production d'une tige de filtre selon la revendication 1, caractérisé en ce que la nappe (29, 33, 34) est compactée lors de son enveloppement au moyen de la bande d'enveloppement (42).
  3. Procédé pour la production d'une tige de filtre selon la revendication 1 ou 2, caractérisé en ce que les fibres (27) présentent une longueur inférieure à celle d'un filtre (40) ou d'un élément de filtre (40) issu de la tige de fibres (38) produite.
  4. Procédé pour la production d'une tige de filtre selon la revendication 3, caractérisé en ce qu'au moins une variété de fibres comprend des fibres (27) présentant un diamètre de fibres moyen dans la plage de 10 à 40 µm, en particulier de 20 à 38 µm.
  5. Procédé pour la production d'une tige de filtre selon l'une ou plusieurs des revendications 1 à 4, caractérisé en ce que des additifs (60) sont ajoutés aux fibres.
  6. Procédé pour la production d'une tige de filtre selon l'une ou plusieurs des revendications 1 à 5, caractérisé en ce que la nappe (29, 33) est densifiée avant l'étape consistant à la mettre en place sur la bande d'enveloppement (42).
  7. Procédé pour la production d'une tige de filtre selon la revendication 6, caractérisé en ce que la densification s'effectue selon au moins deux axes perpendiculaires à la direction d'avancement.
  8. Procédé pour la production d'une tige de filtre selon l'une ou plusieurs des revendications 1 à 7, caractérisé en ce que, en vue d'être mise en place sur la bande d'enveloppement (42), la nappe (29, 33, 34) est enlevée du transporteur (32) par un moyen mécanique, en particulier à l'aide d'air comprimé (37, 67).
  9. Procédé pour la production d'une tige de filtre selon l'une ou plusieurs des revendications 1 à 8, caractérisé en ce que la nappe (29, 33, 34) est mise en forme avant d'être placée sur la bande d'enveloppement.
  10. Procédé pour la production d'une tige de filtre selon la revendication 9, caractérisé en ce que l'étape de mise en forme prévoit au moins la formation d'un demi-cercle disposé transversalement à la direction de transport de la nappe (29, 33, 34).
  11. Procédé pour la production d'une tige de filtre selon la revendication 10, caractérisé en ce qu'un cercle entier est formé.
  12. Procédé pour la production d'une tige de filtre selon l'une ou plusieurs des revendications 1 à 11, caractérisé en ce que les fibres individualisées sont au moins partiellement séparées par de l'air de transport (13) avant la formation d'une nappe (29, 33, 34).
  13. Dispositif pour la production d'une tige de filtre (9), comprenant un dispositif de dépôt en gerbe (11, 53), à l'aide duquel des matières individualisées pour filtre sont transportées sur un transporteur (32) pour former une nappe (29, 33, 34) sur le transporteur (32), un dispositif de mise au format (56) dans lequel une bande de matériau d'enveloppement (42) est enroulée autour de la nappe (29, 33, 34), et un dispositif (36, 54, 62, 63, 66, 70, 72, 73) pour le transfert de la nappe (29, 33, 34), depuis le transporteur (32) sur le dispositif de mise au format (56), le dispositif de dépôt en gerbe (11, 53) assurant un transport des matières pour filtre (27) en direction du transporteur (32), à l'aide d'air de transport, et un dispositif de durcissement (39) étant prévu en aval du transfert de la nappe (29, 33, 34) depuis le transporteur (32) sur le dispositif de mise au format (56).
  14. Dispositif pour la production d'une tige de filtre selon la revendication 13, caractérisé en ce qu'au moins un dispositif de compactage (35, 48, 55, 64) est prévu dans la zone du transporteur (32).
  15. Dispositif pour la production d'une tige de filtre selon la revendication 13 ou 14, caractérisé en ce que le transporteur (32) ou une partie du transporteur (32) fait partie du dispositif de compactage (35, 48, 55, 64).
  16. Dispositif pour la production d'une tige de filtre selon l'une ou plusieurs des revendications 13 à 15, caractérisé en ce que le transporteur (32) comprend au moins une bande d'aspiration (43).
  17. Dispositif pour la production d'une tige de filtre selon la revendication 16, caractérisé en ce que le transporteur (32) comprend au moins trois bandes d'aspiration (43).
  18. Dispositif pour la production d'une tige de filtre selon l'une ou plusieurs des revendications 13 à 17, caractérisé en ce que la nappe (29, 33, 34) peut être enlevée de la bande d'aspiration (43) du transporteur (32) à l'aide d'air comprimé (37, 67, 69).
  19. Dispositif pour la production d'une tige de filtre selon l'une ou plusieurs des revendications 13 à 18, caractérisé en ce que le dispositif (36, 54, 62, 63, 66, 70, 72, 73) comprend une bande transporteuse (62) destinée pour le transfert de la nappe (29, 33, 34).
  20. Dispositif pour la production d'une tige de filtre selon la revendication 19, caractérisé en ce que la bande transporteuse (62) est de forme concave.
  21. Dispositif pour la production d'une tige de filtre selon la revendication 19 ou 20, caractérisé en ce que deux bandes transporteuses (62) sont prévues, lesquelles assurent le transport entre elles de la nappe (29, 33, 34).
  22. Dispositif pour la production d'une tige de filtre selon l'une ou plusieurs des revendications 13 à 21, caractérisé en ce que le dispositif (36, 54, 62, 63, 66, 70, 72, 73) destiné au transfert de la nappe (29, 33, 34) comprend une buse (66, 70, 72, 73), au moyen de laquelle la nappe (29, 33, 34) est susceptible d'être transportée.
  23. Dispositif pour la production d'une tige de filtre selon la revendication 22, caractérisé en ce que la buse (66, 70, 72, 73) est réalisée de manière que la nappe (29, 33, 34) puisse avoir une configuration ronde ou ovale.
EP03007675A 2003-04-03 2003-04-03 Procédé et dispositif pour la production d'une tige de filtre Expired - Lifetime EP1464239B1 (fr)

Priority Applications (17)

Application Number Priority Date Filing Date Title
DE50305744T DE50305744D1 (de) 2003-04-03 2003-04-03 Verfahren und Einrichtung zur Herstellung eines Filterstranges
ES03007675T ES2275036T3 (es) 2003-04-03 2003-04-03 Procedimiento y dispositivo para la fabricacion de una varilla de filtro.
EP03007675A EP1464239B1 (fr) 2003-04-03 2003-04-03 Procédé et dispositif pour la production d'une tige de filtre
AT03007675T ATE345706T1 (de) 2003-04-03 2003-04-03 Verfahren und einrichtung zur herstellung eines filterstranges
EP03018113A EP1464240B1 (fr) 2003-04-03 2003-08-08 Procédé et dispositif pour la production d'un tissu pour la production d'une tige de filtre
ES03018113T ES2269885T3 (es) 2003-04-03 2003-08-08 Procedimiento y dispositivo para la fabricacion de una tela no tejida para la fabricacion de barras de filtro.
AT03018113T ATE341232T1 (de) 2003-04-03 2003-08-08 Verfahren und vorrichtung zur herstellung eines vlieses für die herstellung von filterstäben
EP06009384A EP1683432A1 (fr) 2003-04-03 2003-08-08 Procédé et dispositif pour la production d'une tige de filtre
DE50305252T DE50305252D1 (de) 2003-04-03 2003-08-08 Verfahren und Vorrichtung zur Herstellung eines Vlieses für die Herstellung von Filterstäben
JP2004102610A JP4512397B2 (ja) 2003-04-03 2004-03-31 フィルタロッド製造用のフリースを製造する方法と装置
JP2004104195A JP2004337161A (ja) 2003-04-03 2004-03-31 フリース連続体の製造方法と装置
PL366815A PL210029B1 (pl) 2003-04-03 2004-04-01 Sposób i urządzenie do wytwarzania włókniny dla wytwarzania sztabek filtrowych
PL366814A PL210305B1 (pl) 2003-04-03 2004-04-01 Sposób i urządzenie do wytwarzania pasma filtru oraz filtr lub element filtrowy
US10/815,997 US20040250823A1 (en) 2003-04-03 2004-04-02 Method and machine for producing a continuous filter rod
US10/815,979 US20040237269A1 (en) 2003-04-03 2004-04-02 Method and machine for producing a nonwoven for the filter rod production
CNA2004100342448A CN1535630A (zh) 2003-04-03 2004-04-05 制造一过滤嘴条的方法和装置
CN200410034246.7A CN1535628B (zh) 2003-04-03 2004-04-05 制造一种生产过滤棒用的无纺布的方法和装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP03007675A EP1464239B1 (fr) 2003-04-03 2003-04-03 Procédé et dispositif pour la production d'une tige de filtre

Publications (2)

Publication Number Publication Date
EP1464239A1 EP1464239A1 (fr) 2004-10-06
EP1464239B1 true EP1464239B1 (fr) 2006-11-22

Family

ID=32842754

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03007675A Expired - Lifetime EP1464239B1 (fr) 2003-04-03 2003-04-03 Procédé et dispositif pour la production d'une tige de filtre

Country Status (8)

Country Link
US (1) US20040250823A1 (fr)
EP (1) EP1464239B1 (fr)
JP (1) JP2004337161A (fr)
CN (1) CN1535630A (fr)
AT (2) ATE345706T1 (fr)
DE (2) DE50305744D1 (fr)
ES (2) ES2275036T3 (fr)
PL (1) PL210305B1 (fr)

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DE10354797A1 (de) * 2003-11-21 2005-06-30 Hauni Maschinenbau Ag Verfahren und Vorrichtung zur Herstellung eines umhüllungsmaterialstreifenfreien Filterstrangs der tabakverarbeitenden Industrie
DE102005009608A1 (de) * 2005-02-28 2006-08-31 Hauni Maschinenbau Ag Filter für Artikel der Tabak verarbeitenden Industrie
DE102006018102A1 (de) * 2006-04-18 2007-10-25 Hauni Maschinenbau Ag Faserfilterherstellung
DE102006025738B3 (de) * 2006-05-31 2007-11-08 Hauni Maschinenbau Ag Einbringen von Zusatzstoffen in einen Filterstrang
GB0905211D0 (en) * 2009-03-26 2009-05-13 British American Tobacco Co Guide nozzle for use with filter rod manufacturing apparatus
DE102010000677A1 (de) * 2010-01-05 2011-07-07 Hauni Maschinenbau AG, 21033 Vorrichtung zur gleichzeitigen Herstellung von wenigstens zwei Faservliesen für die Herstellung von Filterstäben der Tabak verarbeitenden Industrie
ES2686334T3 (es) * 2010-03-16 2018-10-17 Japan Tobacco, Inc. Máquina de fabricación de filtros
CN101912162B (zh) * 2010-09-04 2012-04-18 浙江华联制药机械股份有限公司 加工香烟滤嘴的设备
DE102010040949A1 (de) * 2010-09-17 2012-03-22 Hauni Maschinenbau Ag Vorrichtung und Verfahren zum Aufbau eines kontinuierlichen Strangs der Tabak verarbeitenden Industrie
CN102058161A (zh) * 2010-12-06 2011-05-18 云南玉溪卷烟厂滤嘴棒分厂 成型纸与丝束滤棒无缝粘接的嘴棒生产工艺
JP7240533B2 (ja) * 2019-12-23 2023-03-15 チャイナ タバコ フーナン インダストリアル カンパニー リミテッド 全粒子巻きタバコ／濾過棒の製造機器及び方法
IT202000012490A1 (it) * 2020-05-27 2021-11-27 Ima Spa Apparecchiatura e procedimento di dosaggio di materiale incoerente.
CN114190586B (zh) * 2020-09-02 2024-01-19 湖南中烟工业有限责任公司 一种自然增香型减害全颗粒滤棒及其制备方法和应用

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Also Published As

Publication number Publication date
PL210305B1 (pl) 2011-12-30
PL366814A1 (en) 2004-10-04
ATE341232T1 (de) 2006-10-15
ES2269885T3 (es) 2007-04-01
ATE345706T1 (de) 2006-12-15
DE50305744D1 (de) 2007-01-04
US20040250823A1 (en) 2004-12-16
CN1535630A (zh) 2004-10-13
EP1464239A1 (fr) 2004-10-06
ES2275036T3 (es) 2007-06-01
JP2004337161A (ja) 2004-12-02
DE50305252D1 (de) 2006-11-16

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