EP2982253A1 - Transportdüse für eine vorrichtung zur herstellung von filterstäben für die tabakverarbeitende industrie und vorrichtung zur herstellung von filterstäben für die tabakverarbeitende industrie - Google Patents

Transportdüse für eine vorrichtung zur herstellung von filterstäben für die tabakverarbeitende industrie und vorrichtung zur herstellung von filterstäben für die tabakverarbeitende industrie Download PDF

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Publication number
EP2982253A1
EP2982253A1 EP15401076.3A EP15401076A EP2982253A1 EP 2982253 A1 EP2982253 A1 EP 2982253A1 EP 15401076 A EP15401076 A EP 15401076A EP 2982253 A1 EP2982253 A1 EP 2982253A1
Authority
EP
European Patent Office
Prior art keywords
transport nozzle
transport
nozzle according
funnel
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.)
Withdrawn
Application number
EP15401076.3A
Other languages
German (de)
English (en)
French (fr)
Inventor
Hartmut Meis
Claudia Joost
Malte Stahl
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 EP2982253A1 publication Critical patent/EP2982253A1/de
Withdrawn legal-status Critical Current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
    • A24D3/0204—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 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 present invention relates to a transport nozzle for a device for producing filter rods for the tobacco processing industry.
  • a filter tow formed as a continuous strand (filter fleece is understood as meaning a fleece made from a multiplicity of crimped synthetic staple fibers and / or filaments) is withdrawn from a supply and spread, loosened, stretched, relaxed and optionally provided with a plasticizer in a treatment zone , Thereafter, the processed filter tow is fed to a processing zone, where it is summarized in an inlet zone, then optionally wrapped with a wrapping strip and finally cut as a filter strand into individual filter rods.
  • An apparatus for such a method is z. B. from the DE 36 40 883 A1 known.
  • the known devices are usually composed of a processing device and a processing device together.
  • the processing device generally comprises units for spreading, loosening, stretching and relaxing the filter tow and, if the filter tow is to be provided with plasticizer, a unit for wetting the staple fibers and / or filaments of the filter tow with a plasticizer.
  • the processing device usually comprises an inlet unit for combining the filter tow with an inlet funnel and an inlet finger, in addition, when the filter tow is connected to e.g. Paper is to be wrapped, a wrapping device for wrapping the filter tow with a wrapping strip and a cutting device for cutting the formed filter strand into individual filter rods.
  • a channel is further provided, via which the processed filter tow is conveyed by the processing device into the processing device and at the same time ensures that the filter tow is brought into a cylindrical shape, the channel - seen in Filtertowschulscardi - Is guided by a feed funnel upstream transport nozzle through which an air flow for conveying the filter tow is passed to the channel.
  • Transport nozzles are known from the prior art. So are transport nozzles, inter alia in the EP 0 546 529 B1 or the EP 0 594 054 A2 disclosed.
  • Known transport nozzles have an air inlet inlet, via which the air flow is introduced into the transport nozzle. Subsequently, the air flow is forwarded via the air access inlet into an expansion chamber connected to the air inlet inlet and from there into a distribution chamber which communicates with the expansion chamber via a, at least one opening having intermediate wall is connected. Subsequently, the air flow is passed through an annular gap, which is connected on one side with the distribution chamber and on the other side with the channel in the channel.
  • the known transport nozzles have the disadvantage that the flow profile of the air flow provided by the transport nozzle is not formed so that a uniform promotion of the filter tow is ensured by the channel. As a result, the filter tow placed in a cylindrical shape through the channel is often inhomogeneous.
  • the object of the present invention is to provide a transport nozzle, via which an air flow can be generated which has a uniformly formed flow profile on entry into the channel.
  • the distribution chamber is formed such that the volume of the distribution chamber corresponds to at least half the volume of the expansion chamber.
  • the distribution chamber is much smaller than the expansion chamber formed. Due to the small distribution chamber in relation to the expansion chamber, turbulences can arise in the distribution chamber, which can contribute to a non-uniform promotion of the filter tow.
  • the distribution chamber has a sufficient volume, as a low-turbulence, pressurized air flow can be provided, whereby the air flow as unhindered and calm led to the gap and substantially laminar through the gap can escape. This requirement can be achieved with a distribution chamber whose volume is at least half as large as the volume of the expansion chamber. It has been recognized by the Applicant that any turbulence which may be created can be reduced or even avoided by means of a larger distribution chamber, whereby a uniform delivery of the filter tow through the duct is advantageously favored.
  • the expansion chamber, the distribution chamber and the annular gap are arranged substantially in the transport direction of the filter tow side by side in the transport nozzle.
  • a transport nozzle is known in which the distribution chamber is arranged opposite to the transport direction next to the expansion chamber.
  • This arrangement has the disadvantage that the air flow must be diverted by 180 ° on its way through the transport nozzle, whereby further turbulence is generated.
  • the arrangement of the chambers and the annular gap in the transport direction of the endless strand side by side advantageously favor a harmonic air flow.
  • a further advantageous embodiment of the invention provides that the opening in the intermediate wall is arranged and designed so that it aligns the air flow parallel to the transport direction of the endless strand.
  • the transport nozzle is formed at least in two parts, wherein the transport nozzle may have a funnel through which the filter tow is guided, and a funnel holder, wherein the funnel and the funnel holder are designed so that they are built-in Condition at least the expansion chamber, the distribution chamber and / or the annular gap form.
  • the arranged in the region of the outlet of the transport nozzle tube and the inlet funnel are designed so that they together form the annular gap.
  • the transport nozzle according to the invention has the advantage that it can be prepared in a simple manner, since no elaborate in the production of annular chambers, as they are known from EP 1 917 870 B1 are known, are required. Furthermore, the transport nozzle according to the invention is also easier to maintain, since the transport nozzle disassembled and thereby z. B. can be cleaned in a simple manner. Again this is with the from the EP 1 917 870 B1 known nozzle not possible.
  • the two-part design has the advantage that the transport nozzle can be regarded as a kit.
  • the funnel holder is designed as a compact housing in which funnels with different nozzle diameters can be used.
  • the filter tow leading parts of the transport nozzle are preferably made of wear-resistant material, with tight manufacturing tolerances and with good surface quality.
  • the two-part design offers the advantage that only the funnel must be made according to these requirements, for the funnel holder these requirements are not required.
  • the present invention further relates to an apparatus for the production of filter rods for the tobacco processing industry with at least one channel through which a continuous strand of filter tow is transported and formed into a rod-shaped endless strand, and a transport nozzle, via which supplying an air flow for conveying the filter tow through the channel takes place, wherein the transport nozzle is designed according to one of claims 1-13.
  • FIG. 1 shows an arrangement of the applicant for the preparation of filter tow, which preferably consists of cellulose acetate, which is known under the name AF in the tobacco processing industry.
  • the spraying device 12 can also be equipped with nozzles (not shown) directed towards the web 9, in order to apply the plasticizer 13, with which a particularly exact metering can be achieved.
  • the web 9 After deflection by a further driven roller pair 16, the web 9 passes reducing its width via a transport nozzle 17 with a compressed air connection 17a to an inlet funnel 18th
  • a so-called format device 20 which has a guide channel 21 for the filter tow (hereinafter referred to as "finger") with decreasing cross section, so that the filter tow is continuously gathered in its promotion by cross-sectional constriction until it is about the Cross section of a filter rod required in the tobacco processing industry for the production of filter cigarettes.
  • the filter tow is pulled through the format device 20 by a so-called format strip 22, which is fed together with a wrapping strip 24 (eg paper strip) via a deflection roller 23.
  • a wrapping strip 24 eg paper strip
  • the Filter tow strand placed and then formed in a known manner not shown a filter strand from which the individual filter rods are cut off.
  • the inlet part with the finger 21 is shown.
  • the other parts of a format device such as adhesive chamber and the like. Are not shown, since they are not affected by the invention.
  • the transport nozzle 17 is shown in a sectional view.
  • the transport nozzle 17 essentially comprises a funnel 30, a funnel holder 31 and a tube 32, wherein the funnel 30 is arranged in the funnel holder 31 and connected thereto via a thread.
  • the tube 32 is coupled to the outlet of the funnel 30.
  • the funnel 30 has a funnel interior 33 which, together with the interior 34 of the tube 32, forms part of a channel through which the funnel, in FIG Fig. 2 not shown filter tow is promoted.
  • the transport nozzle further comprises an expansion chamber 40 and a distribution chamber 41, wherein both chambers are formed only by the arrangement of the funnel 30 in the funnel holder 31.
  • an intermediate wall 42 is provided between the expansion chamber 40 and the distribution chamber 41, wherein the intermediate wall 42 may be formed as a separate component that is disposed on the hopper 30, or as part of the hopper 30.
  • annular gap 43 is further provided, which is formed by the outlet of the hopper 30 in connection with the tube 32.
  • the transport nozzle 17 has an air inlet inlet 17a, is connected to the compressed air.
  • the air flow of the compressed air is passed into the expansion chamber 40 via the air inlet inlet 17a.
  • the air flow over, in the intermediate wall 42nd provided openings 44 are directed into the distribution chamber 41.
  • the air flow passes through the distribution chamber 41 to the annular gap 43 and is passed through the annular gap 43 in the channel formed from the interior 34 of the tube 32.
  • holes may be provided in the tube. But it can also, as in Fig. 2 represented, may be provided in a arranged at the end of the transport nozzle inlet funnel 18 holes through which the air flow can escape.
  • the entire air flow can reliably from the Run expansion chamber 40 through the at least one opening 44 in the distribution chamber 41 and achieve easy assembly and disassembly.
  • the intermediate wall 42 provided on its outer surface with a circumferential recess, in particular a groove or a shoulder for receiving a sealant, in particular a sealing ring, can be a reliable fit of the sealant and a particularly simple assembly and disassembly realize, especially with an elastic sealing ring.
  • the funnel holder 31 on its inner circumferential surface a parallel or inclined to the longitudinal axis of the transport nozzle arranged sealing surface, which in particular from an inwardly projecting, circumferential in the circumferential projection is formed and in particular has a lower roughness than lying on the side of the projection lateral surface of the hopper holder 31, a mounting and dismounting friendly design can be achieved, which ensures optimum sealing effect and a damage-free positioning of the sealant.

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  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)
EP15401076.3A 2014-08-08 2015-07-21 Transportdüse für eine vorrichtung zur herstellung von filterstäben für die tabakverarbeitende industrie und vorrichtung zur herstellung von filterstäben für die tabakverarbeitende industrie Withdrawn EP2982253A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102014011542.9A DE102014011542A1 (de) 2014-08-08 2014-08-08 Transportdüse für eine Vorrichtung zur Herstellung von Filterstäben für die Tabakverarbeitende Industrie und Vorrichtung zur Herstellung von Filterstäben für die Tabakverarbeitende Industrie

Publications (1)

Publication Number Publication Date
EP2982253A1 true EP2982253A1 (de) 2016-02-10

Family

ID=53887055

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15401076.3A Withdrawn EP2982253A1 (de) 2014-08-08 2015-07-21 Transportdüse für eine vorrichtung zur herstellung von filterstäben für die tabakverarbeitende industrie und vorrichtung zur herstellung von filterstäben für die tabakverarbeitende industrie

Country Status (2)

Country Link
EP (1) EP2982253A1 (pt-PT)
DE (1) DE102014011542A1 (pt-PT)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024002720A1 (de) * 2022-06-29 2024-01-04 Körber Technologies Gmbh Maschine der tabak verarbeitenden industrie zum herstellen eines strangs sowie verfahren zum herstellen eines strangs der tabak verarbeitenden industrie

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3640883A1 (de) 1986-11-29 1988-06-09 Rhodia Ag Verfahren und vorrichtungen zum herstellen von tabakrauchfilterstaeben
EP0546519A2 (en) 1991-12-09 1993-06-16 Mitsubishi Rayon Co., Ltd Air jet for producing filter plug for cigarette
EP0594054A2 (en) 1992-10-21 1994-04-27 Hoechst Celanese Corporation Transport jet adapter
DE4438302A1 (de) * 1993-10-27 1995-05-04 Nuovo Pignone Spa Hauptdüse für eine Luftdüsenwebmaschine
EP1917870B1 (en) 2006-10-31 2011-01-26 G.D S.p.A. A machine manufacturing filters for tobacco products

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55135581A (en) * 1979-04-12 1980-10-22 Mitsubishi Rayon Co Plug for tobacco filter

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3640883A1 (de) 1986-11-29 1988-06-09 Rhodia Ag Verfahren und vorrichtungen zum herstellen von tabakrauchfilterstaeben
EP0546519A2 (en) 1991-12-09 1993-06-16 Mitsubishi Rayon Co., Ltd Air jet for producing filter plug for cigarette
EP0594054A2 (en) 1992-10-21 1994-04-27 Hoechst Celanese Corporation Transport jet adapter
DE4438302A1 (de) * 1993-10-27 1995-05-04 Nuovo Pignone Spa Hauptdüse für eine Luftdüsenwebmaschine
EP1917870B1 (en) 2006-10-31 2011-01-26 G.D S.p.A. A machine manufacturing filters for tobacco products

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024002720A1 (de) * 2022-06-29 2024-01-04 Körber Technologies Gmbh Maschine der tabak verarbeitenden industrie zum herstellen eines strangs sowie verfahren zum herstellen eines strangs der tabak verarbeitenden industrie

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