EP1649764B1 - Procédé et dispositif pour la production de filtres - Google Patents

Procédé et dispositif pour la production de filtres Download PDF

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Publication number
EP1649764B1
EP1649764B1 EP05019830A EP05019830A EP1649764B1 EP 1649764 B1 EP1649764 B1 EP 1649764B1 EP 05019830 A EP05019830 A EP 05019830A EP 05019830 A EP05019830 A EP 05019830A EP 1649764 B1 EP1649764 B1 EP 1649764B1
Authority
EP
European Patent Office
Prior art keywords
filter
filter material
signal
generated
rod
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.)
Not-in-force
Application number
EP05019830A
Other languages
German (de)
English (en)
Other versions
EP1649764A1 (fr
Inventor
Dierk Dr Schröder
Stephan Wolff
Siegfried Hapke
Sönke Horn
Wolfgang Siems
Jan Peisker
Hans-Hermann Behncke
Jürgen Goetz
Karsten Meins
Teut Barkhan
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
Priority to PL05019830T priority Critical patent/PL1649764T3/pl
Publication of EP1649764A1 publication Critical patent/EP1649764A1/fr
Application granted granted Critical
Publication of EP1649764B1 publication Critical patent/EP1649764B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • A24D3/0295—Process control means

Definitions

  • the invention relates to a filter manufacturing method and a filter manufacturing apparatus having a device for applying plasticizer to filter material and a filter material conveying device.
  • a corresponding filter manufacturing method and a corresponding filter manufacturing apparatus are for example from EP 1 106 087 A2 the applicant or from the EP 1 197 746 A1 known.
  • a filter material for example of cellulose acetate
  • a liquid additive for example a plasticizer such as triacetin
  • a plasticizer such as triacetin
  • melt holes In the filter production, however, can be sporadic in principle Holes, so-called "melt holes” occur in the filters, which are caused by a locally greatly increased amount of plasticizer.
  • the reason for this can be, for example, triacetin drops or entrained fibers impregnated with triacetin.
  • the holes form after the production process by chemical reaction with the filter material and reach their final size after curing of the filter material.
  • the spatially resolved measurement at least in the conveying direction of the filter material at least in the conveying direction of the filter material according to the invention the.
  • Section of the filter string, in which an impermissible concentration of the plasticizer is present locally be assigned to a subsequently separated filter, so that this filter can be discarded and is no longer available for the production of, for example, cigarettes.
  • the generation of the signal is also spatially resolved transversely to the conveying direction of the filter material, so that the recognition rate of the so-called "melt holes" can be improved.
  • spatially resolved is also understood to be time-resolved.
  • infrared light can be emitted, for example, by means of an infrared transmitting diode, which penetrates the filter material or the filter strand and impinges on an infrared receiver whose electrical signal is fed to an evaluation unit. Changes in the signal to be evaluated are then due to different Lichtleit concentrateen the filter rod material. Triacetin drops, for example, lead to improved light conductivity and thus to a detectable signal deflection.
  • the filter rod impregnated with a triacetin drop or the correspondingly impregnated filter material is analyzed by the evaluation unit and traced to a shot valve, a rejection flap or generally a filter rejection device and removed from the production process.
  • electromagnetic radiation in the form of infrared radiation
  • Concerning the measurement with nuclear magnetic resonance is on the EP 1 325 683 A2 referred to the applicant.
  • the absolute temperature fluctuations of the filter material, the plasticizer or the machine environment are thus effectively compensated.
  • the temperature profile image can be compared by means of an image processing software with a desired profile image and make an electronic marking of the corresponding section or filter at a tolerance value or threshold exceeding deviation upwards or downwards and then discard this.
  • the signal is generated after application of the plasticizer to the filter material and prior to formation of the strand.
  • the signal is generated after formation of the strand, measurement methods using electromagnetic rays can be used effectively. If the signal is preferably generated at the filter, possibly already formed holes can be detected.
  • a filter production device with a device for applying plasticizer to filter material and a filter material delivery device, wherein a measuring device for generating a signal representing a at least in the conveying direction of the filter material spatially resolved concentration of the plasticizer in the filter material, is provided.
  • the measuring device comprises a temperature measuring device, a heat radiation recording device and / or an electromagnetic radiation or ultrasound emitting device and an electromagnetic radiation or ultrasound receiving device.
  • a device for comparing the signal with at least a first and / or a second predefinable threshold value is also provided.
  • Fig. 1 shows a schematic side view of a filter manufacturing apparatus according to the invention 1.
  • a pair of rollers 2 for continuously withdrawing an endless filter tow strip 3, for example of cellulose acetate, provided by a bale 4.
  • an endless filter tow strip 3 for example of cellulose acetate
  • bale 4 of the filter tow strip 3 After removal from the bale 4 of the filter tow strip 3 passes on its way to the pair of rollers 2, on which it is guided over a guide roller 6, two air nozzles 7 and 8, for the propagation and loosening of the fabric of the filter tow strip 3 serve.
  • Fig. 2 are the aforementioned Fig. 1 apparent components omitted.
  • roller pair 2 follow in the direction of movement 40 of the strip 3, two further pairs of rollers 9 and 11, between which a feeding device 12 for supplying an additive in the form of plasticizer, such as triacetin, on the run between the pairs of rollers 9 and 11 as a flat path out-threaded filter -Tow-strip 3 is located.
  • a feeding device 12 for supplying an additive in the form of plasticizer, such as triacetin, on the run between the pairs of rollers 9 and 11 as a flat path out-threaded filter -Tow-strip 3 is located.
  • a feeding device 12 for supplying an additive in the form of plasticizer, such as triacetin, on the run between the pairs of rollers 9 and 11 as a flat path out-threaded filter -Tow-strip 3 is located.
  • All roller pairs 2, 9 and 11 are driven by a main drive motor not shown on also not shown belt drives, such as in the U.S. Patent No. 5,060,664 described. Instead of a main drive
  • the speed of the roller pair 2 is smaller than that of the roller pair 9, so that the roller pairs 2 and 9 form a stretching device for the filter tow strip 3.
  • the speed of the roller pair 2 is variable via a gear 14 whose translation can be changed by a controllable adjusting motor 16.
  • the speed ratio between the roller pairs 2 and 9 indicates the degree of stretching of the filter tow strip 3, ie the spread web formed by it.
  • the brake rollers 2 are driven. But they can also be designed as drag rollers, which act as a brake rollers due to their friction.
  • a measuring arrangement 18 for detecting the density values of the spread web 3. It has transducers 19a-19e, each one Rail area 3a - 3e assigned and arranged in a row transverse to the longitudinal extent and direction of movement 40 of the web 3.
  • the transducers 19a-19e of the measuring arrangement 18 serve to measure the density values of the web material in the web areas 3a-3e separately in order to detect inhomogeneities.
  • Transducers 19a-19e have light sources 21a-21e and photoelectric detectors 22a-22e.
  • a detector 22a-22e outputs a signal which depends on the attenuation of the light falling on it.
  • the associated transmitter indicates this undesired operating state with its signal.
  • the signals from the transducers 19a-19e are each fed to a signal processing arrangement 23a-23e which process the individual signals and possibly with a signal processing arrangement 23a-23e Compare setpoint.
  • the output signals of the arrangement 23a-23e reach actuators 24a-24e, which allow, for example, by changing their flow cross sections, a quantity control of the added additive (eg triacetin).
  • Each transmitter 19a-19e controls its associated actuator 24a-24e so that it reduces its passage cross-section and thus the supply of the additive from a reservoir 26 at a lower measured density, increases the passage cross-section and thus the supply at a higher density.
  • the feed is adapted to the density ratios such that the same ratio of filter tow and additive is always maintained in a web region 3a-3e.
  • the total amount of the additive, which is supplied to a certain length of the web and thus a certain amount of web remains the same.
  • valves 27a-27e At the outlet of valves 27a-27e are nozzles 31a-31e, through which the additive, e.g. Triacetin, in finely divided, atomized form 26a - 26e fed to the web 3 and applied to the threads.
  • the additive may be conveyed from the reservoir 26, typically by means of one or more pumps, not shown, to the actuators 24a-24e.
  • FIG 28 another pair of rollers is designated, from which the treated / processed filter material web 3 is fed to an inlet funnel 29 of a filter rod machine known in the cigarette industry, for example of the KDF type of the Applicant. From this filter rod machine are also shown schematically a format 35, the formed strand 32, a knife 33 for cutting filters 34 and a flap 42, wherein the flap 42 serves to filter 34, which do not correspond to the desired properties, from the further processing process perennialschleusen.
  • sporadic holes the so-called “melt holes”
  • These holes are caused by short-term disturbances, for example, when larger drops form on the nozzles 31a-31e and are applied to the filter material 3.
  • the holes can sometimes occur hours after filter production.
  • Fig. 1 represented different measuring devices, of which only a single or multiple use can find.
  • a measuring device 38a, 38b is shown, in which the part of the measuring device 38a emits electromagnetic radiation, and the part of the measuring device 38b is a radiation, for example a changed intensity, modified by the plasticizer and the filter material Phase position, absorbs.
  • the measuring device may also be an ultrasonic measuring device or a nuclear magnetic resonance measuring device at this point.
  • the corresponding spatial resolution is also possible by means of the further measuring devices 36a, 36b and 37, but not absolutely necessary.
  • the signal obtained from the receiving device 38b is supplied to a comparison device 41 in which an upper and a lower threshold are stored, and in which the signal is compared with the upper and lower thresholds accordingly.
  • the flap 42 is controlled by the comparison device 41.
  • the comparison device 41 can thus also be a control and / or regulating device.
  • a second measuring device 37 is arranged between the roller pair 11 and the roller pair 28.
  • it is a temperature profile measuring device that receives the heat radiation from the plasticized material strip 3.
  • the movement of the web 3 in the conveying direction 40 already results in a spatial resolution in the conveying direction. It may also be provided a spatial resolution transverse to the conveying direction, which improves the measurement result or the reliability of the method.
  • the signal obtained or the signals obtained are as in Fig. 2 is also supplied to the comparison device 41 and processed accordingly, as shown above.
  • the principle of the temperature profiler 37 is based on heating the liquid plasticizer before it is applied so that a greater amount of thermal radiation is produced by the plasticizer. Thus, at the points where plasticizer has been increasingly applied, a higher temperature is observed, which is efficient with the temperature profiler 37 can be determined.
  • a further measuring device 36 comprising an electromagnetic radiation emitting device 36a and an electromagnetic radiation receiving device 36b, whose signal is also as in Fig. 2 is shown, the comparison device 41 is supplied.
  • the corresponding measuring devices 36a, 36b, 37, 38a and 38b can also be arranged at locations other than those shown or exchanged for one another.

Landscapes

  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)
  • Filtering Materials (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Separation By Low-Temperature Treatments (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Glass Compositions (AREA)

Claims (10)

  1. Procédé pour la production de filtres comportant les étapes suivantes de procédé :
    - fourniture d'une bande (3, 3a - 3e) de matériau pour filtre (3, 3a - 3e),
    - application d'un plastifiant (26a - 26e) sur le matériau pour filtre (3, 3a - 3e),
    - formation d'un boudin (32) à partir du matériau pour filtre (3, 3a - 3e),
    - séparation des filtres (34) et du boudin (32), un signal déclenché localement au moins dans la direction de transport (40) du matériau pour filtre (3, 3a - 3e) et dépendant de la concentration du plastifiant (26a - 26e) étant généré et les filtres (34) étant séparés du matériau pour filtre (3, 3a - 3e) pour lequel un signal a été généré au-dessous d'une première valeur de seuil prédéfinissable ou au-dessus d'une deuxième valeur de seuil prédéfinissable.
  2. Procédé pour la production de filtres selon la revendication 1, caractérisé en ce que, pour générer le signal, on mesure la température, on mesure le rayonnement thermique émis par le matériau pour filtre (3, 3a - 3e) ou par le boudin (32) ou on mesure l'atténuation et/ou le décalage de phase du rayonnement électromagnétique ou de l'ultra-son traversant le matériau pour filtre (3, 3a - 3e) ou le boudin (32).
  3. Procédé pour la production de filtres selon la revendication 2, caractérisé en ce qu'au moins deux signaux sont générés à l'aide d'au moins deux des procédés de mesure.
  4. Procédé pour la production de filtres selon l'une ou plusieurs des revendications 1 à 3, caractérisé en ce que le signal est généré après l'application du plastifiant (26a - 26e) sur le matériau pour filtre (3, 3a - 3e) et avant la formation du boudin (32).
  5. Procédé pour la production de filtres selon l'une ou plusieurs des revendications 1 à 4, caractérisé en ce que le signal est généré après la formation du boudin (32).
  6. Procédé pour la production de filtres selon l'une ou plusieurs des revendications 1 à 5, caractérisé en ce que le signal est généré sur le filtre (34).
  7. Dispositif (1) pour la production de filtres comportant un dispositif (31a - 31 e) pour l'application du plastifiant (26a - 26e) sur le matériau pour filtre (3, 3a - 3e) et un dispositif de transport (2, 9, 11, 28) du matériau pour filtre, caractérisé en ce qu'il est prévu un dispositif de mesure (36a, 36b, 37, 38a, 38b) pour générer un signal représentatif de la concentration du plastifiant (26a - 26e) dans le matériau pour filtre (3, 3a - 3e), ladite concentration étant prise localement au moins dans la direction de transport (40) du matériau pour filtre (3, 3a - 3e).
  8. Dispositif pour la production de filtres selon la revendication 7, caractérisé en ce que le dispositif de mesure (36a, 36b, 37, 38a, 38b) comprend un dispositif de mesure de la température (37), un dispositif récepteur du rayonnement thermique (38a, 38b) et/ou un dispositif (36a, 38a) émettant un rayonnement électromagnétique ou un ultrason ainsi qu'un dispositif (36b, 38b) recevant un rayonnement électromagnétique ou un ultrason.
  9. Dispositif pour la production de filtres selon la revendication 7 ou 8, caractérisé en ce qu'il est prévu un dispositif (41) pour la comparaison du signal avec au moins une première et/ou une deuxième valeur de seuil prédéfinissable(s).
  10. Dispositif pour la production de filtres selon l'une ou plusieurs des revendications 7 à 9, caractérisé en ce qu'il est prévu un dispositif (42) pour séparer les filtres.
EP05019830A 2004-10-25 2005-09-13 Procédé et dispositif pour la production de filtres Not-in-force EP1649764B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL05019830T PL1649764T3 (pl) 2004-10-25 2005-09-13 Sposób wytwarzania filtrów oraz urządzenie

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102004051926A DE102004051926A1 (de) 2004-10-25 2004-10-25 Filterherstellungsverfahren sowie -vorrichtung

Publications (2)

Publication Number Publication Date
EP1649764A1 EP1649764A1 (fr) 2006-04-26
EP1649764B1 true EP1649764B1 (fr) 2008-07-30

Family

ID=35686514

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05019830A Not-in-force EP1649764B1 (fr) 2004-10-25 2005-09-13 Procédé et dispositif pour la production de filtres

Country Status (6)

Country Link
EP (1) EP1649764B1 (fr)
JP (1) JP2006115842A (fr)
CN (1) CN100548164C (fr)
AT (1) ATE402621T1 (fr)
DE (2) DE102004051926A1 (fr)
PL (1) PL1649764T3 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007057396A1 (de) * 2007-11-27 2009-05-28 Hauni Maschinenbau Ag Vorrichtung zur Bearbeitung von mindestens zwei Filtertowsträngen
DE102009016500B4 (de) * 2009-04-08 2024-02-08 Körber Technologies Gmbh Verfahren zum Betrieb einer Filterstrangmaschine und Filterstrangmaschine
DE102011006416B4 (de) * 2011-03-30 2020-08-13 Hauni Maschinenbau Gmbh Verfahren und System zum Herstellen eines Filterstrangs
CN102499474B (zh) * 2011-10-31 2014-03-12 益阳科嘉轻工机械制造有限公司 一种卷烟嘴棒固化方法
US9664570B2 (en) 2012-11-13 2017-05-30 R.J. Reynolds Tobacco Company System for analyzing a smoking article filter associated with a smoking article, and associated method
CN105167183B (zh) * 2015-06-04 2019-01-18 龙岩烟草工业有限责任公司 滤棒剔除控制方法、装置和滤棒成型机

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4724429A (en) * 1986-03-07 1988-02-09 Celanese Corporation Diagnostic and control system for cigarette filter rod making machine
DE3738983C2 (de) * 1986-11-28 2002-02-14 Hauni Werke Koerber & Co Kg Verfahren und Vorrichtung zur Herstellung eines Faserstrangs der tabakverarbeitenden Industrie
DE19959034B4 (de) * 1999-12-08 2008-01-17 Hauni Maschinenbau Ag Verfahren und Vorrichtung zum Zuführen eines vorzugsweise flüssigen Zusatzstoffes auf eine bewegte Bahn
ATE217083T1 (de) * 2001-01-02 2002-05-15 Tews Elektronik Dipl Ing Manfr Verfahren und vorrichtung zur messung des triacetingehalts in filtersträngen
DE10207357A1 (de) * 2002-02-21 2003-09-11 Rhodia Acetow Gmbh Vorrichtung zur gleichzeitigen, kontinuierlichen Messung und Regelung der Acetat- und Triacetinmenge in Filterstäben in der Zigarettenindustrie
US7448991B2 (en) * 2002-11-14 2008-11-11 Philip Morris Usa Inc. Process and system for monitoring a continuous element being incorporated within a cigarette filter

Also Published As

Publication number Publication date
PL1649764T3 (pl) 2009-01-30
CN1765243A (zh) 2006-05-03
DE502005004867D1 (de) 2008-09-11
ATE402621T1 (de) 2008-08-15
DE102004051926A1 (de) 2006-04-27
JP2006115842A (ja) 2006-05-11
CN100548164C (zh) 2009-10-14
EP1649764A1 (fr) 2006-04-26

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