EP1389433A1 - Method and device for supplying an additive, preferably liquid, on a spread moving web of filter material - Google Patents

Method and device for supplying an additive, preferably liquid, on a spread moving web of filter material Download PDF

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Publication number
EP1389433A1
EP1389433A1 EP02018460A EP02018460A EP1389433A1 EP 1389433 A1 EP1389433 A1 EP 1389433A1 EP 02018460 A EP02018460 A EP 02018460A EP 02018460 A EP02018460 A EP 02018460A EP 1389433 A1 EP1389433 A1 EP 1389433A1
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EP
European Patent Office
Prior art keywords
additive
filter material
application surface
filter
nozzle
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.)
Granted
Application number
EP02018460A
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German (de)
French (fr)
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EP1389433B1 (en
Inventor
Jürgen Pehmöller
Stephan Wolff
Irene Maurer
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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.)
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=30470271&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1389433(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Hauni Maschinenbau GmbH filed Critical Hauni Maschinenbau GmbH
Priority to DE50211168T priority Critical patent/DE50211168D1/en
Priority to EP02018460A priority patent/EP1389433B1/en
Priority to AT02018460T priority patent/ATE377361T1/en
Priority to JP2003281952A priority patent/JP4384882B2/en
Priority to PL361584A priority patent/PL208639B1/en
Priority to US10/641,159 priority patent/US7261681B2/en
Priority to CNB031540740A priority patent/CN100425172C/en
Publication of EP1389433A1 publication Critical patent/EP1389433A1/en
Publication of EP1389433B1 publication Critical patent/EP1389433B1/en
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    • 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
    • A24D3/0212—Applying additives to filter materials
    • A24D3/022—Applying additives to filter materials with liquid additives, e.g. application of plasticisers

Definitions

  • the invention relates to a method and a device for supplying a, preferably liquid, additive on a moving, spreading track Filter material of the tobacco processing industry means at least one commissioned body. Furthermore, the Invention an apparatus for producing filter rods for rod-shaped articles of tobacco processing Industry.
  • filter tow mostly made of cellulose acetate exists as an endless strip of one Stock withdrawn and treated.
  • the filter tow exists from a fabric of loosely adhering threads, the formation of a broad and mostly flat track be pulled apart so that the threads next to each other and be moved substantially in parallel.
  • the Propagation of the web takes place in a spreader nozzle.
  • the web becomes an additive that is mostly liquid and e.g. from triacetin droplets exists, supplied in finely divided form.
  • the droplets loosen the threads, so that the threads after their Summary to a round strand and serving with a filter paper strip in a filter rod machine permanently adhered to each other, i. be networked.
  • a liquid additive may also be an off a finely divided powdered substance existing Additive to be used. preparation equipment of the type described above are in the patents US 5,060,664 and 4,511,420.
  • the object underlying the invention is in it, the filter material evenly with an additive to be provided, it should be possible, the Order quantity of the additive in a simple manner to adapt the respective application or filter material, and wherein the consumption of additive is low can be kept and the additive finely dosed can be applied.
  • the Additive is supplied via a job surface and that the size of the application surface is set.
  • the Invention is based on the idea that the order quantity of the additive to the filter material or to the can be adapted to be produced filter. It will under the term "order surface", in particular the Area of an (open) area understood within of which the additive passed on the area Filter material is applied. This is according to the invention provided that the size of this area predetermined and can be varied.
  • the variability of the application surface makes it possible to dose both the order quantity and the To reduce consumption of additive, since the excess of from the filter material not recorded additive is lowered.
  • the application surface in particular by means of at least a Abdeckelements, changed, so that, for example.
  • Method of covering a customization of the application surface to the desired order quantity and / or to the width of the filter material strip easy and is achieved quickly.
  • a dry filter removal can For example, by a complete closing or Abschotten the order surface are made. In this case the order area has the size zero.
  • filters without additive filters without additive. simultaneously the additive may be promoted, with the additive by the foreclosure not on the Filter material is applied.
  • the additive is evenly applied to the filter material applied when applied to the filter material Amount of additive per unit of time and / or per application surface is kept constant.
  • the adhesion between filter material and additive is reinforced when the filter material and / or the additive be charged with charge.
  • a uniform application of the additive to the Filter material is achieved in that the additive from at least one nozzle to at least one Side of the web is sprayed from filter material.
  • a plurality of nozzles are provided on one side.
  • the nozzles can be arranged in several rows become.
  • a homogenization of the order on the filter material is executed when the at least one nozzle with a constant pressure is applied. Through a consistent system pressure becomes an optimal droplet size and / or speed of the additive reached.
  • spray nozzles can the sprays in the form of spray cones or Cover sprayed sprinkles.
  • triacetin is added as an additive applied the filter material.
  • Triacetin has been added the production of filter rods as a suitable plasticizer and crosslinkers proven.
  • the task is also solved by a device of the aforementioned type, which further developed is that the additive over a job area can be fed and the size of the application surface adjustable is.
  • the application surface in particular by means of at least one cover, changeable.
  • At least one means for deriving and / or at least a collecting means for the filter material not added additive is provided.
  • the invention provides that at least a voltage source for charging the filter material and / or the additive with charge provided is.
  • At least one nozzle on at least one Side of the web of filter material provided.
  • a uniform application of the additive to the Filter material is particularly possible if the at least one nozzle can be acted upon by a constant pressure is.
  • Plasticizer from the At least one institution is allowed to exit Exit barrier provided.
  • Excess non-absorbed additive may be present in be returned to the institution if the agent designed for deriving as a band element.
  • the collection means for not recorded Additive as a scraping edge and / or as Formed basin.
  • a housing for the Device provided.
  • the device also achieves the object of the invention by a device described above.
  • the plasticizer e.g. Triacetin
  • the amount to be applied Additive via an adjustable application surface adjusted, wherein the not absorbed by the filter material Excess is derived.
  • This can not absorbed plasticizer from a circulating belt be picked up and stripped from a wiper edge become.
  • the order of the plasticizer can by the application of opposite charges to the Filter tow or on the additive.
  • the filter tow 2 is in accordance with the conveying direction F transported from right to left.
  • spray nozzles 3rd In the lower part of the device 1 are spray nozzles 3rd arranged at a predetermined distance from each other.
  • the spray nozzles 3 each generate a spray cone 4.
  • the spray nozzles are for producing a uniform and constant spray pattern preferably equidistant and arranged flat.
  • By means of the spray nozzles 3 is a fine, mist-like Hohlkegelzerstäubung a plasticizer reached.
  • Axial hollow cone nozzles are particularly suitable for this purpose Fa. Lechler GmbH & Co. KG, Metzingen, Germany.
  • the spray nozzles 3 are with a constant System pressure from one or more sources supplied to an optimal droplet size and speed sure. For the resulting spray pattern can cover the spray cone 4.
  • the spray nozzles 3 are arranged below the filter tow 2 and spray the previously transported filter tow 2 from below. Between the spray nozzles 3 and the filter tow 2 is a movable, in particular motor-driven, cover plate 7 arranged so that the spray surface of the spray cone 4 is limited and the order of the plasticizer takes place via an application surface 12.
  • the order surface 12 is variable in size and has, for example, at a Dry filter removal an area of zero. Here is the spray 4 completely from an order on the Filtertow 2 sealed off.
  • the size of the application area 12 is depending on the application and filter towows Filter Tert quantity can be increased or reduced, wherein the spray nozzles 3 as before with a constant Delivery pressure is applied. This creates a total constant spray pattern.
  • a voltage source 10 in particular high-voltage source, provided so that the spray particles with be charged.
  • the admission of the Filter Tows 2 with electric charges is, for example, in the Publication DE-A-42 09 606 discloses.
  • the regulation of the order quantity of the plasticizer the filter tow 2 is made by the movable cover plate 7, which more or less depending on the requirement Spray surface of the spray cone 4 covered.
  • the cover plate 7 is, for example, designed as a flexible spring plate and is moved by motor and / or spindle in Towraum.
  • the filter tow 2 is a circumferential band. 5 formed over the entire length of the device 1, which rotates about the rollers 9.
  • the volume 5 assumes his the filter tow 2 facing surface of the FilterTow 2 not absorbed plasticizer.
  • the Band 5 is after a deflection under a scraper edge 6 guided along to the waste triacetin dissipate on the belt 5.
  • the speed of the Bandes 5 is preferably below the limit, in which a drop of the plasticizer in the would redirect redirection.
  • the tape speed is thus preferably considerably below the filter turret speed.
  • the Device 1 provided with a housing.
  • the amount of plasticizer absorbed by the belt 5 becomes via the scraping edge 6 arranged transversely to the strip 5 stripped.
  • the plasticizer liquid passes back to the bottom of the device 1.
  • the liquid is collected at the bottom in one Art basin or tub, which also with a tilt can be provided.
  • About a return 11 is the excess order quantity discharged and into the storage container, from which the spray nozzles are fed, returned.
  • FIG. 2a and 2b are schematic, perspective Views of the device 1 shown, wherein for better understanding and illustration corresponding Parts were omitted.
  • the spray nozzles 3 are at regular intervals below the filter tow 2 arranged and produce a two-dimensional spray surface or application surface 12. Due to the constant delivery pressure of the plasticizer is by means of the spray nozzles 3 a uniform application of the plasticizer on the FilterTow 2 reached.
  • the scraper edge 6 on the Top of the band 5 is transverse to the direction of the Bandes 5 arranged so that the tape 5 received Fluid is directed to at least one side of the belt will and at this runs down and in one Catch basin or tub is collected.
  • the cover plate 7 is movable, so that the application surface 12 can be enlarged or reduced can.
  • the order of the Plasticizer also done from the top of the filter tow 2.
  • the amount of plasticizer not absorbed by the filter tow 2 is discharged from the cover plate to the sides, and in the lower sump 13 derived.
  • the excess amount of plasticizer is sent to the feed tank fed again.

Landscapes

  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Filtering Materials (AREA)
  • Treatment Of Fiber Materials (AREA)

Abstract

To apply a liquid additive to a moving web of a spread filter material (2), for the tobacco industry, at least one jet (3) at an applicator assembly (1) sprays the additive in conical sprays (4) to an application surface (12) of adjustable dimensions, with at least one cover (5). The additive is delivered at a constant volume per time unit, and any surplus is collected. An electrical charge (10) is applied to the filter material and/or the liquid additive.

Description

Die Erfindung betrifft ein Verfahren und eine Einrichtung zum Zuführen eines, vorzugsweise flüssigen, Zusatzstoffes auf eine bewegte, ausgebreitete Bahn aus Filtermaterial der tabakverarbeitenden Industrie mittels wenigstens eines Auftragsorgans. Ferner betrifft die Erfindung eine Vorrichtung zum Herstellen von Filterstäben für stabförmige Artikel der tabakverarbeitenden Industrie.The invention relates to a method and a device for supplying a, preferably liquid, additive on a moving, spreading track Filter material of the tobacco processing industry means at least one commissioned body. Furthermore, the Invention an apparatus for producing filter rods for rod-shaped articles of tobacco processing Industry.

Bei der Herstellung von Filterstäben für die tabakverarbeitende Industrie wird Filtertow, das meist aus Celluloseacetat besteht, als endloser Streifen von einem Vorrat abgezogen und behandelt. Das Filtertow besteht aus einem Gewebe aus locker aneinander haftenden Fäden, die zur Bildung einer breiten und meist ebenen Bahn auseinandergezogen werden, so daß die Fäden nebeneinander und im wesentlichen parallel bewegt werden. Die Ausbreitung der Bahn erfolgt in einer Ausbreiterdüse. Nach der Ausbreitung wird der Bahn ein Zusatzstoff, der meist flüssig ist und z.B. aus Triacetin-Tröpfchen besteht, in fein verteilter Form zugeführt. Die Tröpfchen lösen die Fäden an, so daß die Fäden nach ihrer Zusammenfassung zu einem runden Strang und Umhüllung mit einem Filterpapierstreifen in einer Filterstrangmaschine dauerhaft aneinander haftend, d.h. vernetzt werden. Anstelle eines flüssigen Zusatzstoffes kann auch ein aus einer fein verteilten pulverförmigen Substanz bestehender Zusatzstoff verwendet werden. Aufbereitungsgeräte der vorbeschriebenen Art sind in den Patentschriften US 5 060 664 und US 4 511 420 beschrieben.In the production of filter rods for tobacco processing Industry becomes filter tow, mostly made of cellulose acetate exists as an endless strip of one Stock withdrawn and treated. The filter tow exists from a fabric of loosely adhering threads, the formation of a broad and mostly flat track be pulled apart so that the threads next to each other and be moved substantially in parallel. The Propagation of the web takes place in a spreader nozzle. After spreading, the web becomes an additive that is mostly liquid and e.g. from triacetin droplets exists, supplied in finely divided form. The droplets loosen the threads, so that the threads after their Summary to a round strand and serving with a filter paper strip in a filter rod machine permanently adhered to each other, i. be networked. Instead of a liquid additive may also be an off a finely divided powdered substance existing Additive to be used. preparation equipment of the type described above are in the patents US 5,060,664 and 4,511,420.

Aus der Offenlegungsschrift DE-A-199 59 034 ist bekannt, Filtertow mit einer quer zur Bewegungsrichtung des Filtertows angeordneten Reihe von Düsen mit Weichmacher zu besprühen. Hierbei werden die einzelnen Düsen mittels vorgeordneten, die Dichte des Filtertows in den betreffenden Abschnitten erfassenden Sensoren gesteuert.From the published patent application DE-A-199 59 034 is known Filter tow with a direction transverse to the direction of movement Filter Tows arranged series of nozzles with plasticizer to spray. Here are the individual nozzles by means of upstream, the density of the filter tow in the relevant Controlled sections sensing sensors.

Von großer Wichtigkeit für die Qualität der Aufbereitung ist die gute Vereinzelung der einzelnen Fäden oder Fasern und/oder ein gleichmäßiger Auftrag von fein verteilten Weichmacherteilchen in Form von Tröpfchen oder Feinpartikeln.Of great importance for the quality of the treatment is the good separation of individual threads or Fibers and / or a uniform application of fine distributed plasticizer particles in the form of droplets or fine particles.

Die der Erfindung zugrunde liegende Aufgabe besteht darin, das Filtermaterial gleichmäßig mit einem Zusatzstoff zu versehen, wobei es möglich sein soll, die Auftragsmenge des Zusatzstoffes auf einfache Weise an die jeweilige Anwendung bzw. das Filtermaterial anzupassen, und wobei der Verbrauch an Zusatzstoff gering gehalten werden kann und der Zusatzstoff fein dosiert aufgetragen werden kann.The object underlying the invention is in it, the filter material evenly with an additive to be provided, it should be possible, the Order quantity of the additive in a simple manner to adapt the respective application or filter material, and wherein the consumption of additive is low can be kept and the additive finely dosed can be applied.

Gemäß der Erfindung wird dies dadurch erreicht, daß der Zusatzstoff über eine Auftragsfläche zugeführt wird und daß die Größe der Auftragsfläche eingestellt wird. Die Erfindung beruht auf dem Gedanken, daß die Auftragsmenge des Zusatzstoffes an das Filtermaterial bzw. an den herzustellenden Filter angepaßt werden kann. Dabei wird unter dem Begriff "Auftragsfläche" insbesondere die Fläche eines (offenen) Bereiches verstanden, innerhalb dessen der Zusatzstoff auf das am Bereich vorbeigeführte Filtermaterial aufgetragen wird. Hierbei ist erfindungsgemäß vorgesehen, daß die Größe dieser Fläche vorbestimmt und variiert werden kann.According to the invention, this is achieved in that the Additive is supplied via a job surface and that the size of the application surface is set. The Invention is based on the idea that the order quantity of the additive to the filter material or to the can be adapted to be produced filter. It will under the term "order surface", in particular the Area of an (open) area understood within of which the additive passed on the area Filter material is applied. This is according to the invention provided that the size of this area predetermined and can be varied.

Durch die Variabilität der Auftragsfläche ist es möglich, sowohl die Auftragsmenge zu dosieren als auch den Verbrauch an Zusatzstoff zu senken, da der Überschuß an vom Filtermaterial nicht aufgenommenen Zusatzstoffs herabgesetzt wird.The variability of the application surface makes it possible to dose both the order quantity and the To reduce consumption of additive, since the excess of from the filter material not recorded additive is lowered.

Gemäß einer vorteilhaften Ausgestaltung der Erfindung wird die Auftragsfläche, insbesondere mittels wenigstens eines Abdeckelements, verändert, so daß bspw. durch Verfahren des Abdeckelements eine Anpassung der Auftragsfläche, an die gewünschte Auftragsmenge und/oder an die Breite des Filtermaterialstreifens einfach und schnell erzielt wird. Eine Trockenfilterentnahme kann bspw. durch ein vollständiges Schließen oder Abschotten der Auftragsfläche vorgenommen werden. In diesem Fall hat die Auftragsfläche die Größe Null. Als Trockenfilter werden Filter ohne Zusatzstoff verstanden. Gleichzeitig kann eine Förderung des Zusatzstoffes erfolgen, wobei der Zusatzstoff durch die Abschottung nicht auf das Filtermaterial appliziert wird.According to an advantageous embodiment of the invention the application surface, in particular by means of at least a Abdeckelements, changed, so that, for example. By Method of covering a customization of the application surface, to the desired order quantity and / or to the width of the filter material strip easy and is achieved quickly. A dry filter removal can For example, by a complete closing or Abschotten the order surface are made. In this case the order area has the size zero. As a dry filter are understood filters without additive. simultaneously the additive may be promoted, with the additive by the foreclosure not on the Filter material is applied.

Der Zusatzstoff wird gleichmäßig auf das Filtermaterial aufgetragen, wenn die auf das Filtermaterial zugeführte Zusatzstoffmenge pro Zeiteinheit und/oder pro Auftragsfläche konstant gehalten wird.The additive is evenly applied to the filter material applied when applied to the filter material Amount of additive per unit of time and / or per application surface is kept constant.

In weiterer Ausgestaltung der Erfindung wird der vom Filtermaterial nicht aufgenommene Zusatzstoff abgeleitet und/oder gesammelt.In a further embodiment of the invention of the Filter material derived from ingested additive and / or collected.

Die Haftung zwischen Filtermaterial und Zusatzstoff wird verstärkt, wenn das Filtermaterial und/oder der Zusatzstoff mit Ladung beaufschlagt werden.The adhesion between filter material and additive is reinforced when the filter material and / or the additive be charged with charge.

Ein gleichmäßiger Auftrag des Zusatzstoffs auf das Filtermaterial wird dadurch erreicht, daß der Zusatzstoff von wenigstens einer Düse auf wenigstens eine Seite der Bahn aus Filtermaterial aufgesprüht wird. Bevorzugt sind mehrere Düsen auf einer Seite vorgesehen. Insbesondere können die Düsen in mehreren Reihen angeordnet werden.A uniform application of the additive to the Filter material is achieved in that the additive from at least one nozzle to at least one Side of the web is sprayed from filter material. Preferably, a plurality of nozzles are provided on one side. In particular, the nozzles can be arranged in several rows become.

Eine Vergleichmäßigung des Auftrags auf das Filtermaterial wird ausgeführt, wenn die wenigstens eine Düse mit einem konstanten Druck beaufschlagt wird. Durch einen gleichbleibenden Systemdruck wird eine optimale Tröpfchengröße und/oder -geschwindigkeit des Zusatzstoffes erreicht. Bei der Verwendung mehrerer Sprühdüsen können sich die Sprühgebilde in Form von Sprühkegeln oder Sprührechtecken überdecken.A homogenization of the order on the filter material is executed when the at least one nozzle with a constant pressure is applied. Through a consistent system pressure becomes an optimal droplet size and / or speed of the additive reached. When using multiple spray nozzles can the sprays in the form of spray cones or Cover sprayed sprinkles.

Vorteilhafterweise wird als Zusatzstoff Triacetin auf das Filtermaterial aufgebracht. Triacetin hat sich bei der Herstellung von Filterstäben als geeigneter Weichmacher und Vernetzer bewährt.Advantageously, triacetin is added as an additive applied the filter material. Triacetin has been added the production of filter rods as a suitable plasticizer and crosslinkers proven.

Gelöst wird die Aufgabe ferner durch eine Einrichtung der eingangs genannten Art, die dadurch weitergebildet ist, daß der Zusatzstoff über eine Auftragsfläche zuführbar ist und die Größe der Auftragsfläche einstellbar ist.The task is also solved by a device of the aforementioned type, which further developed is that the additive over a job area can be fed and the size of the application surface adjustable is.

Vorteilhafterweise ist die Auftragsfläche, insbesondere mittels wenigstens eines Abdeckelements, veränderbar.Advantageously, the application surface, in particular by means of at least one cover, changeable.

In einer weiteren Ausgestaltung der Erfindung sind wenigstens ein Mittel zum Ableiten und/oder wenigstens ein Sammelmittel für den vom Filtermaterial nicht aufgenommenen Zusatzstoff vorgesehen.In a further embodiment of the invention at least one means for deriving and / or at least a collecting means for the filter material not added additive.

Außerdem ist erfindungsgemäß vorgesehen, daß wenigstens eine Spannungsquelle zur Beaufschlagung des Filtermaterials und/oder des Zusatzstoffes mit Ladung vorgesehen ist.In addition, the invention provides that at least a voltage source for charging the filter material and / or the additive with charge provided is.

Zur Aufbringung des Zusatzstoffes auf das Filtermaterial ist ferner wenigstens eine Düse auf wenigstens einer Seite der Bahn aus Filtermaterial vorgesehen. Vorzugsweise sind mehrere Düsen auf einer Seite, insbesondere in mehreren Reihen, angeordnet.For applying the additive to the filter material is at least one nozzle on at least one Side of the web of filter material provided. Preferably are several nozzles on one side, in particular arranged in several rows.

Ein gleichmäßiger Auftrag des Zusatzstoffes auf das Filtermaterial ist insbesondere dann möglich, wenn die wenigstens eine Düse mit einem konstanten Druck beaufschlagbar ist. A uniform application of the additive to the Filter material is particularly possible if the at least one nozzle can be acted upon by a constant pressure is.

Um möglichst wenig Zusatzstoff, z.B. Weichmacher aus der Einrichtung austreten zu lassen, ist wenigstens eine Austrittsbarriere vorgesehen.To minimize the amount of additive, e.g. Plasticizer from the At least one institution is allowed to exit Exit barrier provided.

Überschüssiger, nicht aufgenommener Zusatzstoff kann in der Einrichtung zurückgeführt werden, wenn das Mittel zum Ableiten als Bandelement ausgebildet ist.Excess non-absorbed additive may be present in be returned to the institution if the agent designed for deriving as a band element.

Bevorzugterweise ist das Sammelmittel für nicht aufgenommenen Zusatzstoff als Abstreifkante und/oder als Becken ausgebildet.Preferably, the collection means for not recorded Additive as a scraping edge and / or as Formed basin.

Schließlich ist gemäß der Erfindung ein Gehäuse für die Einrichtung vorgesehen.Finally, according to the invention, a housing for the Device provided.

Die Vorrichtung löst ebenfalls die Aufgabe der Erfindung durch eine voranstehend beschriebene Einrichtung.The device also achieves the object of the invention by a device described above.

Durch die Erfindung wird erreicht, daß der Weichmacher, z.B. Triacetin, gleichmäßig auf das Filtertow aufgesprüht wird. Hierbei wird die aufzutragende Menge an Zusatzstoff über eine verstellbare Auftragsfläche eingestellt, wobei der vom Filtermaterial nicht aufgenommene Überschuß abgeleitet wird. Hierzu kann der nicht aufgenommene Weichmacher von einem umlaufenden Band aufgenommen werden und von einer Abstreifkante abgestreift werden. Der Auftrag des Weichmachers kann durch das Aufbringen entgegengesetzter Ladungen auf das Filtertow bzw. auf den Zusatzstoff unterstützt werden.By the invention it is achieved that the plasticizer, e.g. Triacetin, sprayed evenly on the filter tow becomes. Here, the amount to be applied Additive via an adjustable application surface adjusted, wherein the not absorbed by the filter material Excess is derived. This can not absorbed plasticizer from a circulating belt be picked up and stripped from a wiper edge become. The order of the plasticizer can by the application of opposite charges to the Filter tow or on the additive.

Die Erfindung wird nachstehend ohne Beschränkung des allgemeinen Erfindungsgedankens anhand Von Ausführungsbeispielen unter Bezugnahme auf die Zeichnungen exemplarisch beschrieben, auf die im übrigen bezüglich aller im Text nicht näher erläuterten erfindungsgemäßen Einzelheiten ausdrücklich verwiesen wird. Es zeigen:

Fig. 1
eine Querschnittsansicht einer erfindungsgemäßen Einrichtung;
Fig. 2a, 2b
perspektivische Schnittansichten der Einrichtung;
Fig. 3a, 3b
eine perspektivische und eine Seitenansicht einer weiteren Einrichtung und
Fig. 4a, 4b
eine perspektivische und eine Seitenansicht einer dritten Ausführungsform der Einrichtung.
The invention will now be described by way of example without limitation of the general inventive concept using exemplary embodiments with reference to the drawings, which are expressly referred to in the rest with respect to all not explained in detail in the text inventive details. Show it:
Fig. 1
a cross-sectional view of a device according to the invention;
Fig. 2a, 2b
perspective sectional views of the device;
Fig. 3a, 3b
a perspective and a side view of another device and
Fig. 4a, 4b
a perspective and a side view of a third embodiment of the device.

In den folgenden Figuren sind gleiche Elemente durch dieselben Bezugsziffern gekennzeichnet, so daß von einer erneuten Vorstellung der jeweiligen Elemente in diesen Fällen abgesehen wird.In the following figures are the same elements the same reference numerals, so that of a renewed presentation of the respective elements in these Cases aside.

In Fig. 1 ist eine Einrichtung 1 zum Aufbringen eines Weichmachers, z.B. Triacetin, auf ein ausgebreitetes Filtertow 2 bzw. auf einen Filtermaterialstreifen gezeigt. Das Filtertow 2 wird gemäß der Förderrichtung F von rechts nach links transportiert.In Fig. 1, a device 1 for applying a Plasticizer, e.g. Triacetin, on a spreading Filter tow 2 or on a strip of filter material shown. The filter tow 2 is in accordance with the conveying direction F transported from right to left.

Im unteren Bereich der Einrichtung 1 sind Sprühdüsen 3 in einem vorbestimmten Abstand zueinander angeordnet. Die Sprühdüsen 3 erzeugen jeweils einen Sprühkegel 4. Die Sprühdüsen sind zur Erzeugung eines gleichmäßigen und konstanten Sprühbildes vorzugsweise äquidistant und flächig angeordnet. Mittels der Sprühdüsen 3 wird eine feine, nebelartige Hohlkegelzerstäubung eines Weichmachers erreicht. Hierzu eignen sich insbesondere Axial-Hohlkegeldüsen der Fa. Lechler GmbH & Co. KG, Metzingen, Deutschland.In the lower part of the device 1 are spray nozzles 3rd arranged at a predetermined distance from each other. The spray nozzles 3 each generate a spray cone 4. The spray nozzles are for producing a uniform and constant spray pattern preferably equidistant and arranged flat. By means of the spray nozzles 3 is a fine, mist-like Hohlkegelzerstäubung a plasticizer reached. Axial hollow cone nozzles are particularly suitable for this purpose Fa. Lechler GmbH & Co. KG, Metzingen, Germany.

Die Sprühdüsen 3 werden mit einem gleichbleibenden Systemdruck von einer oder mehreren Förderquellen versorgt, um eine optimale Tröpfchengröße und -geschwindigkeit sicherzustellen. Für das entstehende Sprühbild können sich die Sprühkegel 4 überdecken. Die Sprühdüsen 3 sind unterhalb des Filtertows 2 angeordnet und besprühen das vorbeitransportierte Filtertow 2 von unten. Zwischen den Sprühdüsen 3 und dem Filtertow 2 ist ein verfahrbares, insbesondere motorangetriebenes, Abdeckblech 7 angeordnet, so daß die Sprühfläche der Sprühkegel 4 begrenzt wird und der Auftrag des Weichmachers über eine Auftragsfläche 12 erfolgt. Die Auftragsfläche 12 ist variabel in ihrer Größe und hat bspw. bei einer Trockenfilterentnahme eine Fläche von Null. Hierbei ist der Sprühnebel 4 vollständig von einem Auftrag auf das Filtertow 2 abgeschottet. Die Größe der Auftragsfläche 12 ist je nach Anwendungsfall und Filtertowsorte bzw. Filtertowmenge vergrößerbar oder verkleinerbar, wobei die Sprühdüsen 3 nach wie vor mit einem konstanten Förderdruck beaufschlagt sind. Dies erzeugt ein insgesamt konstantes Sprühbild.The spray nozzles 3 are with a constant System pressure from one or more sources supplied to an optimal droplet size and speed sure. For the resulting spray pattern can cover the spray cone 4. The spray nozzles 3 are arranged below the filter tow 2 and spray the previously transported filter tow 2 from below. Between the spray nozzles 3 and the filter tow 2 is a movable, in particular motor-driven, cover plate 7 arranged so that the spray surface of the spray cone 4 is limited and the order of the plasticizer takes place via an application surface 12. The order surface 12 is variable in size and has, for example, at a Dry filter removal an area of zero. Here is the spray 4 completely from an order on the Filtertow 2 sealed off. The size of the application area 12 is depending on the application and filter towows Filter Tert quantity can be increased or reduced, wherein the spray nozzles 3 as before with a constant Delivery pressure is applied. This creates a total constant spray pattern.

Um ein besseres Anhaften der Weichmacherpartikel der Sprühnebel 4 auf dem Filtertow 2 zu erreichen, ist ferner eine Spannungsquelle 10, insbesondere Hochspannungsquelle, vorgesehen, so daß die Sprühpartikel mit einer Ladung versehen werden. Die Beaufschlagung des Filtertows 2 mit elektrischen Ladungen ist bspw. in der Offenlegungsschrift DE-A-42 09 606 offenbart. To better adhere the plasticizer particles of To achieve spray 4 on the filter tow 2 is Furthermore, a voltage source 10, in particular high-voltage source, provided so that the spray particles with be charged. The admission of the Filter Tows 2 with electric charges is, for example, in the Publication DE-A-42 09 606 discloses.

Die Regulierung der Auftragsmenge des Weichmachers auf das Filtertow 2 erfolgt durch das verfahrbare Abdeckblech 7, die je nach Anforderung mehr oder weniger Sprühfläche der Sprühkegel 4 überdeckt. Das Abdeckblech 7 ist bspw. als biegsames Federblech ausgebildet und wird per Motor und/oder Spindel in Towrichtung bewegt.The regulation of the order quantity of the plasticizer the filter tow 2 is made by the movable cover plate 7, which more or less depending on the requirement Spray surface of the spray cone 4 covered. The cover plate 7 is, for example, designed as a flexible spring plate and is moved by motor and / or spindle in Towrichtung.

Oberhalb des Filtertows 2 ist ein umlaufendes Band 5 über die gesamte Länge der Einrichtung 1 ausgebildet, das über die Rollen 9 umläuft. Das Band 5 nimmt an seiner dem Filtertow 2 zugewandten Oberfläche den vom Filtertow 2 nicht aufgenommenen Weichmacher auf. Das Band 5 wird nach einer Umlenkung unter einer Abstreifkante 6 entlanggeführt, um das überflüssige Triacetin auf dem Band 5 abzuführen. Die Geschwindigkeit des Bandes 5 liegt dabei vorzugsweise unterhalb der Grenze, bei der sich ein Tropfen des Weichmachers bei der Umlenkung lösen würde. Die Bandgeschwindigkeit liegt somit vorzugsweise erheblich unterhalb der Filtertowgeschwindigkeit. Am Auslauf der Einrichtung 1 sind parallel zueinander angeordnete Sprühnebelbarrieren 8 ausgebildet, die bewirken, daß möglichst wenig Weichmacher aus der Einrichtung 1 austritt. Vorzugsweise ist die Einrichtung 1 mit einem Gehäuse versehen.Above the filter tow 2 is a circumferential band. 5 formed over the entire length of the device 1, which rotates about the rollers 9. The volume 5 assumes his the filter tow 2 facing surface of the FilterTow 2 not absorbed plasticizer. The Band 5 is after a deflection under a scraper edge 6 guided along to the waste triacetin dissipate on the belt 5. The speed of the Bandes 5 is preferably below the limit, in which a drop of the plasticizer in the Would redirect redirection. The tape speed is thus preferably considerably below the filter turret speed. At the outlet of the device 1 are parallel formed spray barriers 8, which cause the least possible plasticizer exits the device 1. Preferably, the Device 1 provided with a housing.

Die von dem Band 5 aufgenommene Weichmachermenge wird über die quer zum Band 5 angeordnete Abstreifkante 6 abgestreift. Dabei gelangt die Weichmacherflüssigkeit wieder in den unteren Bereich der Einrichtung 1. Hierbei wird die Flüssigkeit am unteren Rand gesammelt in einer Art Becken oder Wanne, die auch mit einer Neigung versehen sein kann. Über einen Rücklauf 11 wird die überschüssige Auftragsmenge abgeführt und in den Vorratsbehälter, aus dem die Sprühdüsen gespeist werden, zurückgeleitet. The amount of plasticizer absorbed by the belt 5 becomes via the scraping edge 6 arranged transversely to the strip 5 stripped. In this case, the plasticizer liquid passes back to the bottom of the device 1. Here the liquid is collected at the bottom in one Art basin or tub, which also with a tilt can be provided. About a return 11 is the excess order quantity discharged and into the storage container, from which the spray nozzles are fed, returned.

In den Figuren 2a und 2b sind schematische, perspektivische Ansichten der Einrichtung 1 dargestellt, wobei zum besseren Verständnis und Veranschaulichung entsprechende Teile weggelassen wurden. Die Sprühdüsen 3 sind in regelmäßigen Abständen unterhalb des Filtertows 2 angeordnet und erzeugen eine zweidimensionale Sprühfläche bzw. Auftragsfläche 12. Durch den konstanten Förderdruck des Weichmachers wird mittels der Sprühdüsen 3 eine gleichmäßige Aufbringung des Weichmachers auf das Filtertow 2 erreicht. Die Abstreifkante 6 auf der Oberseite des Bandes 5 ist quer zur Laufrichtung des Bandes 5 angeordnet, so daß die vom Band 5 aufgenommene Flüssigkeit zu mindestens einer Seite des Bandes geleitet wird und an diesem herunterläuft und in einem Auffangbecken oder -wanne aufgefangen wird. Wie in Fig. 2b angedeutet, ist das Abdeckblech 7 verfahrbar, so daß die Auftragsfläche 12 vergrößert oder verkleinert werden kann.In the figures 2a and 2b are schematic, perspective Views of the device 1 shown, wherein for better understanding and illustration corresponding Parts were omitted. The spray nozzles 3 are at regular intervals below the filter tow 2 arranged and produce a two-dimensional spray surface or application surface 12. Due to the constant delivery pressure of the plasticizer is by means of the spray nozzles 3 a uniform application of the plasticizer on the FilterTow 2 reached. The scraper edge 6 on the Top of the band 5 is transverse to the direction of the Bandes 5 arranged so that the tape 5 received Fluid is directed to at least one side of the belt will and at this runs down and in one Catch basin or tub is collected. As shown in FIG. 2b indicated, the cover plate 7 is movable, so that the application surface 12 can be enlarged or reduced can.

Wie in Fig. 3a und 3b gezeigt, kann der Auftrag des Weichmachers auch von oben auf das Filtertow 2 erfolgen. Die vom Filtertow 2 nicht aufgenommene Weichmachermenge wird von dem Abdeckblech zu den Seiten abgeführt, und in die untere Auffangwanne 13 abgeleitet. Über den Rücklauf 11 wird die überschüssige Weichmachermenge dem Fördertank wieder zugeführt.As shown in Figs. 3a and 3b, the order of the Plasticizer also done from the top of the filter tow 2. The amount of plasticizer not absorbed by the filter tow 2 is discharged from the cover plate to the sides, and in the lower sump 13 derived. About the return 11, the excess amount of plasticizer is sent to the feed tank fed again.

Bei dem in den Figuren 4a und 4b gezeigten Anwendungsbeispiel erfolgt die Aufbringung des Weichmachers von der Seite, wobei das Filtertow 2 vertikal ausgebreitet ist. In the application example shown in FIGS. 4a and 4b the application of the plasticizer of the side, with the filter tow 2 spread vertically is.

BezudszeichenlisteBezudszeichenliste

11
EinrichtungFacility
22
Filtertowfilter tow
33
Sprühdüsespray nozzle
44
Sprühkegelspray cones
55
Bandtape
66
Abstreifkantestripping
77
AbdeckblechCover plate
88th
Barrierenbarriers
99
Rollenroll
1010
Spannungsquellevoltage source
1111
Rücklaufreturns
1212
Auftragsflächeapplication surface
1313
Auffangwannedrip tray
FF
Förderrichtungconveying direction

Claims (19)

Verfahren zum Zuführen eines, vorzugsweise flüssigen, Zusatzstoffes auf eine bewegte, ausgebreitete Bahn aus Filtermaterial (2) der tabakverarbeitenden Industrie mittels wenigstens eines Auftragsorgans (3), dadurch gekennzeichnet, daß der Zusatzstoff über eine Auftragsfläche (12) zugeführt wird und daß die Größe der Auftragsfläche (12) eingestellt wird.Method for feeding a, preferably liquid, additive to a moving, spread web of filter material (2) of the tobacco processing industry by means of at least one applicator (3), characterized in that the additive is supplied via an application surface (12) and that the size of the Application surface (12) is set. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß die Auftragsfläche (12), insbesondere mittels wenigstens eines Abdeckelements (5), verändert wird.A method according to claim 1, characterized in that the application surface (12), in particular by means of at least one cover element (5), is changed. Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die auf das Filtermaterial (2) zugeführte Zusatzstoffmenge pro Zeiteinheit und/oder pro Auftragsfläche (12) konstant gehalten wird.Method according to claim 1 or 2, characterized in that the amount of additive per unit time and / or per application surface (12) supplied to the filter material (2) is kept constant. Verfahren nach einem oder mehreren der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß der vom Filtermaterial (2) nicht aufgenommene Zusatzstoff abgeleitet und/oder gesammelt wird.Method according to one or more of claims 1 to 3, characterized in that the additive not absorbed by the filter material (2) is discharged and / or collected. Verfahren nach einem oder mehreren der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß das Filtermaterial (2) und/oder der Zusatzstoff mit Ladung beaufschlagt werden.Method according to one or more of claims 1 to 4, characterized in that the filter material (2) and / or the additive are charged with charge. Verfahren nach einem oder mehreren der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß der Zusatzstoff von wenigstens einer Düse (3) auf wenigstens eine Seite der Bahn aus Filtermaterial (2) aufgesprüht wird.Method according to one or more of claims 1 to 5, characterized in that the additive is sprayed from at least one nozzle (3) on at least one side of the web of filter material (2). Verfahren nach Anspruch 6, dadurch gekennzeichnet, daß die wenigstens eine Düse (3) mit einem konstanten Druck beaufschlagt wird.A method according to claim 6, characterized in that the at least one nozzle (3) is subjected to a constant pressure. Verfahren nach einem oder mehreren der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß als Zusatzstoff Triacetin auf das Filtermaterial (2) aufgebracht wird.Method according to one or more of claims 1 to 7, characterized in that triacetin is applied to the filter material (2) as an additive. Einrichtung (1) zum Zuführen eines, vorzugsweise flüssigen, Zusatzstoffes auf eine bewegte, ausgebreitete Bahn aus Filtermaterial (2) der tabakverarbeitenden Industrie mittels eines Auftragsorgans (3), dadurch gekennzeichnet, daß der Zusatzstoff über eine Auftragsfläche (12) zuführbar ist und daß die Größe der Auftragsfläche (12) einstellbar ist. Device (1) for supplying a, preferably liquid, additive to a moving, spread web of filter material (2) of the tobacco processing industry by means of an applicator (3), characterized in that the additive can be supplied via an application surface (12) and that the Size of the application surface (12) is adjustable. Einrichtung (1) nach Anspruch 9, dadurch gekennzeichnet, daß die Auftragsfläche (12), insbesondere mittels wenigstens eines Abdeckelements (5), veränderbar ist.Device (1) according to claim 9, characterized in that the application surface (12), in particular by means of at least one cover element (5), is variable. Einrichtung (1) nach Anspruch 9 oder 10, dadurch gekennzeichnet, daß wenigstens ein Mittel zum Ableiten (5) und/oder wenigstens ein Sammelmittel (6, 11, 13) für den vom Filtermaterial (2) nicht aufgenommenen Zusatzstoff vorgesehen sind.Device (1) according to claim 9 or 10, characterized in that at least one means for discharging (5) and / or at least one collecting means (6, 11, 13) are provided for the additive not received by the filter material (2). Einrichtung (1) nach einem oder mehreren der Ansprüche 9 bis 11, dadurch gekennzeichnet, daß wenigstens eine Spannungsquelle (10) zur Beaufschlagung des Filtermaterials (2) und/oder des Zusatzstoffes mit Ladung vorgesehen ist.Device (1) according to one or more of claims 9 to 11, characterized in that at least one voltage source (10) is provided for loading the filter material (2) and / or the additive with charge. Einrichtung (1) nach einem oder mehreren der Ansprüche 9 bis 12, dadurch gekennzeichnet, daß wenigstens eine Düse (3) auf wenigstens einer Seite der Bahn aus Filtermaterial (2) vorgesehen ist.Device (1) according to one or more of claims 9 to 12, characterized in that at least one nozzle (3) is provided on at least one side of the web of filter material (2). Einrichtung (1) nach Anspruch 13, dadurch gekennzeichnet, daß die wenigstens eine Düse (3) mit einem konstanten Druck beaufschlagbar ist.Device (1) according to claim 13, characterized in that the at least one nozzle (3) can be subjected to a constant pressure. Einrichtung (1) nach einem oder mehreren der Ansprüche 9 bis 14, dadurch gekennzeichnet, daß wenigstens eine Austrittsbarriere (8) vorgesehen ist.Device (1) according to one or more of claims 9 to 14, characterized in that at least one outlet barrier (8) is provided. Einrichtung (1) nach Anspruch 11, dadurch gekennzeichnet, daß das Mittel zum Ableiten (5) als Bandelement (5) ausgebildet ist. Device (1) according to claim 11, characterized in that the means for deriving (5) is designed as a band element (5). Einrichtung (1) nach Anspruch 11, dadurch gekennzeichnet, daß das Sammelmittel (6, 11, 13) als Abstreifkante (6) und/oder als Becken (13) ausgebildet ist.Device (1) according to claim 11, characterized in that the collecting means (6, 11, 13) as a scraper edge (6) and / or as a basin (13) is formed. Einrichtung (1) nach einem oder mehreren der Ansprüche 9 bis 17, dadurch gekennzeichnet, daß ein Gehäuse vorgesehen ist.Device (1) according to one or more of claims 9 to 17, characterized in that a housing is provided. Vorrichtung zum Herstellen von Filterstäben für stabförmige Artikel der tabakverarbeitenden Industrie mit einer Einrichtung nach einem oder mehreren der Ansprüche 9 bis 18.Device for producing filter rods for rod-shaped articles of the tobacco processing industry with a device according to one or more of Claims 9 to 18.
EP02018460A 2002-08-16 2002-08-16 Method and device for supplying an additive, preferably liquid, on a spread moving web of filter material Expired - Lifetime EP1389433B1 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
DE50211168T DE50211168D1 (en) 2002-08-16 2002-08-16 Method and device for supplying a, preferably liquid, additive to a moving, spread web of filter material
EP02018460A EP1389433B1 (en) 2002-08-16 2002-08-16 Method and device for supplying an additive, preferably liquid, on a spread moving web of filter material
AT02018460T ATE377361T1 (en) 2002-08-16 2002-08-16 METHOD AND DEVICE FOR SUPPLYING AN ADDITIVE, PREFERABLY LIQUID, TO A MOVING, EXPANDED BELT OF FILTER MATERIAL
JP2003281952A JP4384882B2 (en) 2002-08-16 2003-07-29 Method and apparatus for supplying in particular liquid additives to a continuum of moved and expanded filter material
PL361584A PL208639B1 (en) 2002-08-16 2003-08-08 Method and appliance designed to feed suitably liquid additive to the moving stretched band of filtering material used in the tobacco industry and installation for manufacturing filtering bars for tobacco industry products
US10/641,159 US7261681B2 (en) 2002-08-16 2003-08-15 Method and apparatus for applying additive to a moving, spread-out filter material web
CNB031540740A CN100425172C (en) 2002-08-16 2003-08-15 Method and apparatus for transferring one kind of additive to moving flattening belt of filtering medium

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Application Number Priority Date Filing Date Title
EP02018460A EP1389433B1 (en) 2002-08-16 2002-08-16 Method and device for supplying an additive, preferably liquid, on a spread moving web of filter material

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EP1389433A1 true EP1389433A1 (en) 2004-02-18
EP1389433B1 EP1389433B1 (en) 2007-11-07

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EP (1) EP1389433B1 (en)
JP (1) JP4384882B2 (en)
CN (1) CN100425172C (en)
AT (1) ATE377361T1 (en)
DE (1) DE50211168D1 (en)
PL (1) PL208639B1 (en)

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PL208639B1 (en) 2011-05-31
ATE377361T1 (en) 2007-11-15
JP4384882B2 (en) 2009-12-16
DE50211168D1 (en) 2007-12-20
JP2004073194A (en) 2004-03-11
CN1486644A (en) 2004-04-07
EP1389433B1 (en) 2007-11-07
CN100425172C (en) 2008-10-15
US20040038790A1 (en) 2004-02-26
US7261681B2 (en) 2007-08-28
PL361584A1 (en) 2004-02-23

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