EP1834530B1 - Treatment of a filter material rod of the tobacco processing industry - Google Patents

Treatment of a filter material rod of the tobacco processing industry Download PDF

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Publication number
EP1834530B1
EP1834530B1 EP07002496A EP07002496A EP1834530B1 EP 1834530 B1 EP1834530 B1 EP 1834530B1 EP 07002496 A EP07002496 A EP 07002496A EP 07002496 A EP07002496 A EP 07002496A EP 1834530 B1 EP1834530 B1 EP 1834530B1
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EP
European Patent Office
Prior art keywords
strip
filter
housing part
production
applicator
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Active
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EP07002496A
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German (de)
French (fr)
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EP1834530A1 (en
Inventor
Gerd Strohecker
Sönke Horn
Jan Peisker
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Koerber Technologies GmbH
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Hauni Maschinenbau GmbH
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Priority to PL07002496T priority Critical patent/PL1834530T3/en
Publication of EP1834530A1 publication Critical patent/EP1834530A1/en
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    • AHUMAN NECESSITIES
    • A24TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24DCIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D3/00Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
    • A24D3/02Manufacture of tobacco smoke filters
    • A24D3/0295Process control means
    • AHUMAN NECESSITIES
    • A24TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24DCIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D3/00Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
    • A24D3/02Manufacture of tobacco smoke filters
    • A24D3/0204Preliminary operations before the filter rod forming process, e.g. crimping, blooming
    • A24D3/0212Applying additives to filter materials
    • A24D3/022Applying additives to filter materials with liquid additives, e.g. application of plasticisers

Definitions

  • the invention relates to a method for processing a strip of filter material of the tobacco-processing industry, in particular Filtertowstreiferi, which is conveyed along a conveying path, wherein in a job path by means of an applicator a, preferably liquid, additive is applied to the strip.
  • a, preferably liquid, additive is applied to the strip.
  • a strip of filter material in particular filter tow, of interconnected fibers, such as cellulose acetate, continuously withdrawn from a stock, eg from a bale, spread, stretched and with a plasticizer, such as triacetin, sprayed, laterally shirred, fed to a blown air nozzle and then fed to a hopper, fed from which the processed and compressed filter strip a filter rod machine becomes.
  • a plasticizer such as triacetin
  • the strip formed into a filter strand is enveloped continuously with a wrapping material strip, with further compression, so that filter rods are cut off from the wrapped filter strand.
  • a generic device or arrangement for processing a FiltermateriälstMails is off EP-B-0 654 224 known.
  • Proven processing equipment of the type described above are built and sold under the name AF2, AF3 and AF4 by the patent applicant.
  • Proven filter rod machines of the type described are built and sold under the name KDF2, KDF3 and KDF4 by the patent applicant.
  • Triacetin deposits in the interior of the housing of an application device or spraying chamber in the form of mist.
  • the Triacetinnebel can thereby emerge from the inlet and outlet columns of the housing and wet in the area of the order range filter material strips leading areas in the drafting system.
  • the promotion of the filter tuck is interrupted, whereby the stopped TowstMail in the order range due to the deposition in the spray chamber or outside the spray chamber with triacetin in contact.
  • the tow strip After a period of a few minutes, for example 10 minutes, the tow strip, which comes in contact with triacetin, begins to dissolve. In a subsequent start of production or machine start, it may therefore come to demolish the tow.
  • the object of the present invention is to improve the treatment process, in particular after a production stop or an interruption, wherein it should be possible that after a business interruption production in the simplest possible way can be started trouble-free ,
  • This object is achieved by a method for processing a strip of filter material of the tobacco-processing industry, in particular filter tow, which is conveyed along a conveyor line, wherein in areferssumble by means of a applicator a, preferably liquid, additive is applied to the strip, which further developed in that, upon or after the initiation of a production stop, the contact between the strip and at least one point contacting the strip within the application line is terminated.
  • a method for processing a strip of filter material of the tobacco-processing industry, in particular filter tow which is conveyed along a conveyor line, wherein in areferssumble by means of a applicator a, preferably liquid, additive is applied to the strip, which further developed in that, upon or after the initiation of a production stop, the contact between the strip and at least one point contacting the strip within the application line is terminated.
  • the invention is based on the idea that after initiation or during a stoppage of production, the strip or its section is or will be arranged freely in the area of the application line, that is to say that the strip has no contact with production facilities from the current production operation, which are provided at a standstill with Triacetinablagerungen.
  • the strip does not reach the strip of material during the downtime in the spray chamber or application device Devices, such as guide surfaces, Abstreifblechen or the like in contact, so that no carryover of deposits of triacetin takes place at the guide means, whereby the strip portion could soften.
  • contact between the stationary strip of material and contact points with amounts of triacetin in the area of the application line or application device is thus prevented.
  • the strip is lifted by means of at least one lifting device.
  • the applicator is formed with a closed spray chamber, it is necessary for this that the housing of the applicator is opened to arrange the strip by means of a lifting device, for example in the form of one or more support rods or a gripping device contactlessly to the production facilities of a job path.
  • an upper housing part and a lower housing part of the applicator are spaced apart, whereby a stationary filter material strip arranged between roller pairs of the applicator path remains stationary, while the contact-bearing and deposed stripping plates of an applicator device are removed from the stationary strip or spaced.
  • an upper housing part of the applicator is raised and / or a lower housing part of the applicator is lowered, so that the housing parts are spaced from each other.
  • lowering the lower housing part according to the invention is also achieved that the contact between the strip and the points that touch the strip in production, is terminated.
  • the application device is closed to start production.
  • the free arrangement of the stationary or stationary strip of material within the order path during the downtime has the advantage that it prevents the strip of filter material from coming in contact with triacetin for a prolonged period of time and thus does not dissolve or dissolve. Overall, this extends the service life and softening of the material strip by triacetin or the like avoided.
  • Fig. 1 the processing device for a stripped off a bale strip 2 of filter tow, eg cellulose acetate, with continuous fibers following main assemblies that passes through the strip 2 below, on: a withdrawal line 3, a Vorreckorder 4, a stretch 6, amoverssumble 7, a Raffsort 8 and a feed line 9.
  • the feed line 9 serves to feed a strip section to an inlet device of a filter rod machine 11, shown schematically, for example, from the known in the tobacco industry type KDF2, KDF3 or KDF4 of the patent applicant.
  • the withdrawal line 3 in which of a not shown here. Bales withdrawn filter material strip 2 is promoted, has a spreader nozzle 16, which receives compressed air from a compressed air source. The compressed air is used to spread the extracted filter fabric in this section.
  • a controllable spreader nozzle is eg in the US-A-4,259,769 described.
  • a deflection plate 19 of the filter tow 2 passes into the pre-stretch 4, on the one hand by a pair of rollers 21 with the rollers 22, 23, on the other hand by a pair of rollers 24 with motor-driven rollers 26, 27 is limited.
  • the rollers 22, 23 are towed from the tow strip, ie they run empty with more or less resistance. If necessary, they can be powered by a motor. They can also be pressed in a manner known per se with controllable force against each other. In the Vorrecktier 4, in which the strip portion is conveyed obliquely down, the filter tow 2 is vorgereckt.
  • the stretching line 6 connects, in which the filter tow 2 is conveyed vertically or with a vertical component from top to bottom.
  • the stretching section 6 is another pair of rollers 39 of motor-driven rollers 41, 42 whose peripheral speeds are slightly greater than the peripheral speeds of the rollers 26, 27, so that the elastic filter tow 2 is defined stretched.
  • the roller pairs 24 and 39 thus form the actual stretching device.
  • the rollers 26 and 41 have a rigid, grooved surface, each contacting a compliant surface of the rollers 27 and 42, respectively.
  • Such roll configurations are known from the aforementioned filter tup processing devices AF 2, AF 3 and AF 4 of the applicant and, for example, in US-A-3,317,965 and US-A-3 255 506 described.
  • the roller pair 39 is followed by a further pair of rollers 43 with rollers 44, 46 whose peripheral speeds are lower than those of the rollers 41, 42, so that the filter tow 2 is slightly relaxed in its promotion.
  • the pair of rollers 43 has a smooth rubber roller 44, which is in contact with the steel roller 46.
  • the roller pairs 39 and 43 thus limit the application path 7, which in the present case is arranged approximately horizontally, in which an application device (FIG. Fig. 2 , Reference numeral 47) is arranged in the form of a spraying device.
  • the applicator 47 sprays the transported filter tow 2 from one or both sides with fine droplets of a solvent for the filter tow material, eg triacetin.
  • a solvent for the filter tow material eg triacetin.
  • the application device 47 may be arranged upstream of the applicator section 7 (not shown here) spreader nozzle, so that the stretched filter tow 2 is further spread and the solvent wets a larger surface of the filter tow 2.
  • the upstream of the roller pair 21 of the Vorreckumble 4 spreader nozzles 16, 17 and optionally the spreader nozzle in the order path 7 are pressurized with compressed air.
  • the order path 7 is a shirring 8 downstream, in which the filter tow 2 is conveyed with predominantly vertical component of a motor-driven roller 53 from bottom to top.
  • the roller 53 is arranged downstream of a feed path 9.
  • a feed path 9 also known per se so-called. Stopfdüse is present. After passing through the Stopfdüse the filter tow is fed to a filter rod machine 11.
  • a plasticizer eg triacetin
  • the strip 2 of filter material is transported according to the conveying direction F from right to left.
  • a plurality of application nozzles 31, of which only one is shown, which generates a spray cone 32 with plasticizer droplets of triacetin during ongoing production are shown.
  • the strip 2 is guided through lower stripping plates 33, 34 by the applicator 47.
  • the lower stripping plates 33, 34 are arranged in the lower region of the application device 47 or of the lower housing part 13.
  • Above the filter tow 2, three stripping plates 15 are arranged in the closed housing of the application device 47 on the upper housing part 12.
  • the upper Abstreifbleche 15 are hook-shaped or V-shaped or formed in the manner of a parabola.
  • the spread-out filter tow strip 2 is transported past according to the marked conveying direction F. In this case, touching the filter tow 2 and the stripping plate 15 in the lowest point of the stripping plate 15.
  • a further stripper plate 14 is disposed above the filter tow 2 in the entry region of the strip 2 in the applicator 47.
  • triacetin By applying triacetin to the filter tow 2, for example, by means of an application nozzle or an application brush, which is not shown here, droplets of triacetin are applied to the filter tow 2. Due to the volatility of the triacetin droplets, the atmosphere in the applicator housing 47 is enriched with triacetin droplets.
  • Fig. 3 is an inventive arrangement on the applicator 47 shown in cross section according to a first embodiment.
  • the job on the application nozzles 31 is completed and the strip 2 stopped.
  • the closed housing of the applicator 47 is opened, wherein the upper housing part 12 is raised after completion of Triacetinéess and the promotion of the strip 2 upwards.
  • the lower housing part 13 remains stationary.
  • the production situation of the strip 2 is in Fig. 3 dashed lines.
  • the strip 2 By lifting the resting, ie stationary strip 2 by means of the vertically moving support rods 18, 20, the strip 2 is in the in Fig. 3 illustrated position in a rest position in which Triacetinablagerungen with the filter tow 2 do not come into contact.
  • the contacting contact between the rollers 41, 42 of the roller pair 39 can be terminated by pivoting the roller 42 away in a development. This is in Fig. 3 indicated with an arrow pointing to the left on the roller 42.
  • the input side roller pair of the stretching section (see. Fig. 1 , Reference numeral 24) is opened, so that the input-side rollers (see. Fig. 1 , Reference numerals 26, 27) are no longer in touching contact. Due to the fact that during a machine standstill the preparation of the strip 2 is also terminated by stretching, the strip 2 is in a relaxed state in the region of the application path 7 when the production is at a standstill.
  • the holding rods 18, 20 are lowered. Subsequently, the upper housing part 12 is moved downward, whereby the housing of the applicator 47 is closed. Subsequently or simultaneously, the pairs of rollers 39, 43 of the application path 7 and the stretching device are brought into touching contact, if during the downtime the corresponding rolls of the pairs of rolls have been separated from each other.
  • the strip 2 which is conveyed horizontally in the application path 7, after its stretching in the following Stretching line (cf. Fig. 1 , Reference numeral 6) in the order path with triacetin on the application nozzle 31 sprayed (see. Fig. 2 ).
  • the housing of the application device 47 consisting of an upper housing part 12 and a lower housing part 13, is opened by raising the upper housing part 12 and lowering the lower housing part 13 with respect to the strip 2, so that the between the roller pairs 39 and 43 arranged strip 2 is not in contact with the lower and upper Abstreifblechen 33, 34 and 15 device to record deposits of triacetin to the Abstreifblechen 33, 34.
  • the contact between the inlet plate 28 on the input side of the applicator 47 and the outlet plate 30 is interrupted or terminated on the output side by lowering the lower housing part 13.
  • the inlet plate 28 and the outlet plate 30 are arranged on the lower housing part 13 and point outwards.
  • the lower housing part 13 and the upper housing part 12 are moved back to their working position.

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  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)

Abstract

A strip (2) of filter tow material is fed along a conveyor belt. A liquid additive is applied to this strip in an application section (7) by means of an applicator (31). Contact between this strip of filter tow material and a point making contact with this strip is terminated within the application section either during or after introducing stoppage in production.

Description

Die Erfindung betrifft ein Verfahren zum Aufbereiten eines Streifens aus Filtermaterial der Tabak verarbeitenden Industrie, insbesondere Filtertowstreiferi, der entlang einer Förderstrecke gefördert wird, wobei in einer Auftragsstrecke mittels einer Auftragseinrichtung ein, vorzugsweise flüssiger, Zusatzstoff auf den Streifen aufgebracht wird.The invention relates to a method for processing a strip of filter material of the tobacco-processing industry, in particular Filtertowstreiferi, which is conveyed along a conveying path, wherein in a job path by means of an applicator a, preferably liquid, additive is applied to the strip.

Zum Herstellen von Filterstäben für die Tabak verarbeitende Industrie wird ein Streifen aus Filtermaterial, insbesondere Filtertow, aus miteinander verbundenen Fasern, z.B. aus Celluloseacetat, fortlaufend von einem Vorrat, z.B. von einem Ballen, abgezogen, ausgebreitet, gereckt und mit einem Weichmacher, z.B. Triacetin, besprüht, seitlich gerafft, einer mit Blasluft beaufschlagten Düse und anschließend einem Trichter zugeführt, von dem aus der aufbereitete und verdichtete Filterstreifen einer Filterstrangmaschine zugeführt wird. In einer Filterstrangmaschine wird der zu einem Filterstrang geformte Streifen unter weiterer Verdichtung fortlaufend mit einem Hüllmaterialstreifen umhüllt, so dass vom umhüllten Filterstrang Filterstäbe abgeschnitten werden.For the production of filter rods for the tobacco processing industry, a strip of filter material, in particular filter tow, of interconnected fibers, such as cellulose acetate, continuously withdrawn from a stock, eg from a bale, spread, stretched and with a plasticizer, such as triacetin, sprayed, laterally shirred, fed to a blown air nozzle and then fed to a hopper, fed from which the processed and compressed filter strip a filter rod machine becomes. In a filter rod machine, the strip formed into a filter strand is enveloped continuously with a wrapping material strip, with further compression, so that filter rods are cut off from the wrapped filter strand.

Eine gattungsgemäße Vorrichtung bzw. Anordnung zum Aufbereiten eines Filtermateriälstreifens ist aus EP-B-0 654 224 bekannt.A generic device or arrangement for processing a Filtermateriälstreifens is off EP-B-0 654 224 known.

Bewährte Aufbereitungsgeräte der vorbeschriebenen Art werden unter der Bezeichnung AF2, AF3 und AF4 von der Patentanmelderin gebaut und vertrieben. Bewährte Filterstrangmaschinen der beschriebenen Art werden unter der Bezeichnung KDF2, KDF3 und KDF4 von der Patentanmelderin gebaut und vertrieben.Proven processing equipment of the type described above are built and sold under the name AF2, AF3 and AF4 by the patent applicant. Proven filter rod machines of the type described are built and sold under the name KDF2, KDF3 and KDF4 by the patent applicant.

Ferner sind in DE-A-100 31 848 und EP-A-1 325 685 Vorrichtungen zum Herstellen von Filterstäben für stabförmige Artikel der Tabak verarbeitenden Industrie beschrieben, bei der Filtertowstreifen entlang einer Reckstrecke, Auftragsstrecke und Raffstrecke hindurchgeführt werden.Furthermore, in DE-A-100 31 848 and EP-A-1 325 685 Apparatuses for producing filter rods for rod-shaped articles of the tobacco-processing industry are described in which filter tow strips are passed along a stretching line, application line and gathering line.

Während der Produktion bzw. der Aufbereitung eines Filtertowstreifens lagert sich im Innenbereich des Gehäuses einer Auftragseinrichtung bzw. Sprühkammer Triacetin in Form von Nebel ab. Der Triacetinnebel kann dabei aus den Einlauf- und Auslaufspalten des Gehäuses austreten und im Bereich der Auftragsstrecke Filtermaterialstreifen führende Bereiche im Streckwerk benetzen.During the production or preparation of a filter tow strip, triacetin deposits in the interior of the housing of an application device or spraying chamber in the form of mist. The Triacetinnebel can thereby emerge from the inlet and outlet columns of the housing and wet in the area of the order range filter material strips leading areas in the drafting system.

Bei einer Unterbrechung des Aufbereitungsprozesses, d. h. bei einem Maschinenstopp, beispielsweise zur Durchführung von Wartungsarbeiten wird die Förderung des Filtertowstreifens unterbrochen, wodurch der angehaltene Towstreifen im Bereich der Auftragsstrecke aufgrund der Ablagerung in der Sprühkammer oder außerhalb der Sprühkammer mit Triacetin in Kontakt gerät.In an interruption of the treatment process, ie at a machine stop, for example, to carry out maintenance, the promotion of the filter tuck is interrupted, whereby the stopped Towstreifen in the order range due to the deposition in the spray chamber or outside the spray chamber with triacetin in contact.

Nach einer Zeit von einigen Minuten, beispielsweise 10 Minuten, beginnt der Towstreifen, der in Kontakt mit Triacetin gerät, sich aufzulösen. Bei einem anschließenden Start der Produktion bzw. Maschinenstart kann es daher zum Abriss des Tows kommen.After a period of a few minutes, for example 10 minutes, the tow strip, which comes in contact with triacetin, begins to dissolve. In a subsequent start of production or machine start, it may therefore come to demolish the tow.

Ausgehend von diesem Stand der Technik besteht die Aufgabe der vorliegenden Erfindung darin, den Aufbereitungsprozess, insbesondere nach einem Produktionsstopp oder einer Unterbrechung, zu verbessern, wobei es möglich sein soll, dass nach einer Betriebsunterbrechung die Produktion auf möglichst einfache Weise störungsfrei in Gang gesetzt werden kann.Based on this prior art, the object of the present invention is to improve the treatment process, in particular after a production stop or an interruption, wherein it should be possible that after a business interruption production in the simplest possible way can be started trouble-free ,

Gelöst wird diese Aufgabe durch ein Verfahren zum Aufbereiten eines Streifens aus Filtermaterial der Tabak verarbeitenden Industrie, insbesondere Filtertowstreifen, der entlang einer Förderstrecke gefördert wird, wobei in einer Auftragsstrecke mittels einer Auftragseinrichtung ein, vorzugsweise flüssiger, Zusatzstoff auf den Streifen aufgebracht wird, das dadurch weitergebildet wird, dass bei oder nach Einleitung eines Produktionsstopps der Kontakt zwischen dem Streifen und wenigstens einer den Streifen kontaktierenden Stelle innerhalb der Auftragsstrecke beendet wird.This object is achieved by a method for processing a strip of filter material of the tobacco-processing industry, in particular filter tow, which is conveyed along a conveyor line, wherein in a Auftragsstrecke by means of a applicator a, preferably liquid, additive is applied to the strip, which further developed in that, upon or after the initiation of a production stop, the contact between the strip and at least one point contacting the strip within the application line is terminated.

Die Erfindung beruht auf dem Gedanken, dass nach Einleitung bzw. während einer Produktionsunterbrechung der Streifen bzw. dessen Abschnitt im Bereich der Auftragsstrecke frei bzw. kontaktfrei angeordnet ist oder wird, das heißt, dass der Streifen keinen Kontakt mit Produktionseinrichtungen aus dem laufenden Produktionsbetrieb hat, die im Stillstand mit Triacetinablagerungen versehen sind. Hierdurch gelangt der Streifen während der Stillstandszeit in der Sprühkammer bzw. Auftragseinrichtung nicht mit den materialstreifenführenden Einrichtungen, beispielsweise Führungsflächen, Abstreifblechen oder dergleichen in Berührung, so dass kein Übertrag von Ablagerungen von Triacetin an den Führungseinrichtungen stattfindet, wodurch der Streifenabschnitt aufweichen könnte. Während der Wartezeit wird somit ein Kontakt zwischen dem ruhenden Materialstreifen und Kontaktstellen mit Triacetinmengen im Bereich der Auftragsstrecke bzw. Auftragseinrichtung verhindert.The invention is based on the idea that after initiation or during a stoppage of production, the strip or its section is or will be arranged freely in the area of the application line, that is to say that the strip has no contact with production facilities from the current production operation, which are provided at a standstill with Triacetinablagerungen. As a result, the strip does not reach the strip of material during the downtime in the spray chamber or application device Devices, such as guide surfaces, Abstreifblechen or the like in contact, so that no carryover of deposits of triacetin takes place at the guide means, whereby the strip portion could soften. During the waiting period, contact between the stationary strip of material and contact points with amounts of triacetin in the area of the application line or application device is thus prevented.

Dazu ist in einer Weiterbildung vorgesehen, dass der Streifen mittels wenigstens einer Hebeeinrichtung angehoben wird. Ist die Auftragseinrichtung mit einer geschlossenen Sprühkammer ausgebildet, so ist es hierzu erforderlich, dass das Gehäuse der Auftragseinrichtung geöffnet wird, um den Streifen mittels einer Hebeeinrichtung beispielsweise in Form eines oder mehrerer Haltestäbe oder einer Greifeinrichtung kontaktfrei zu den Produktionseinrichtungen einer Auftragsstrecke anzuordnen.For this purpose, it is provided in a development that the strip is lifted by means of at least one lifting device. If the applicator is formed with a closed spray chamber, it is necessary for this that the housing of the applicator is opened to arrange the strip by means of a lifting device, for example in the form of one or more support rods or a gripping device contactlessly to the production facilities of a job path.

Ferner ist es in einer bevorzugten Ausgestaltung möglich, dass ein oberes Gehäuseteil und ein unteres Gehäuseteil der Auftragseinrichtung voneinander beabstandet werden, wodurch ein zwischen Walzenpaaren der Auftragsstrecke angeordneter stillstehender Filtermaterialstreifen ortsfest bleibt, während die kontaktführenden und mit Ablagerungen versehenen Abstreifbleche einer Auftragseinrichtung vom ortsfesten Streifen entfernt werden bzw. beabstandet sind.Furthermore, in a preferred embodiment, it is possible for an upper housing part and a lower housing part of the applicator to be spaced apart, whereby a stationary filter material strip arranged between roller pairs of the applicator path remains stationary, while the contact-bearing and deposed stripping plates of an applicator device are removed from the stationary strip or spaced.

Dazu ist es insbesondere vorteilhaft, wenn ein oberes Gehäuseteil der Auftragseinrichtung angehoben wird und/oder ein unteres Gehäuseteil der Auftragseinrichtung abgesenkt wird, so dass die Gehäuseteile voneinander beabstandet werden. Durch das Absenken des unteren Gehäuseteils wird erfindungsgemäß ebenfalls erreicht, dass der Kontakt zwischen dem Streifen und den Stellen, die im Produktionsbetrieb den Streifen berühren, beendet wird.For this purpose, it is particularly advantageous if an upper housing part of the applicator is raised and / or a lower housing part of the applicator is lowered, so that the housing parts are spaced from each other. By lowering the lower housing part according to the invention is also achieved that the contact between the strip and the points that touch the strip in production, is terminated.

Überdies ist es in einer weiteren Ausführungsform vorgesehen, dass die Auftragseinrichtung zur Produktionsaufnahme geschlossen wird.Moreover, it is provided in a further embodiment that the application device is closed to start production.

Die freie Anordnung des still stehenden bzw. ruhenden Materialstreifens innerhalb der Auftragsstrecke während der Stillstandszeit hat den Vorteil, dass dadurch verhindert wird, dass der Filtermaterialstreifen für einen längeren Zeitraum mit Triacetin in Berührung kommt und sich damit nicht auflöst bzw. auflösen kann. Insgesamt wird dadurch die Standzeit verlängert sowie eine Aufweichung des Materialstreifens durch Triacetin oder dergleichen vermieden.The free arrangement of the stationary or stationary strip of material within the order path during the downtime has the advantage that it prevents the strip of filter material from coming in contact with triacetin for a prolonged period of time and thus does not dissolve or dissolve. Overall, this extends the service life and softening of the material strip by triacetin or the like avoided.

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

Fig. 1
schematisch eine Aufbereitungseinrichtung gemäß dem Stand der Technik und
Fig. 2
eine Ansicht einer Auftragseinrichtung während der laufenden Produktion von Filtersträngen in einem Querschnitt;
Fig. 3
eine Ansicht einer Auftragseinrichtung während eines Produktionsstopps in einem Querschnitt und
Fig. 4
eine Ansicht einer weiteren Ausführungsform einer Auftragseinrichtung während des Produktionsstopps in einem Querschnitt.
The invention will now be described by way of example without limitation of the general inventive idea by means of embodiments with reference to the accompanying drawings, to which reference is expressly made with respect to the disclosure of all unspecified in the text details of the invention. Show it:
Fig. 1
schematically a processing device according to the prior art and
Fig. 2
a view of an applicator during the ongoing production of filter strands in a cross section;
Fig. 3
a view of an application device during a production stop in a cross section and
Fig. 4
a view of another embodiment of an application device during the production stop in a cross section.

In den folgenden Figuren sind jeweils gleiche oder gleichartige Elemente bzw. entsprechende Teile mit denselben Bezugsziffern versehen, so dass von einer entsprechenden erneuten Vorstellung abgesehen wird.In the following figures, identical or similar elements or corresponding parts are provided with the same reference numerals, so that a corresponding renewed idea is dispensed with.

Gemäß Fig. 1 weist die Aufbereitungseinrichtung für einen von einem Ballen abgezogenen Streifen 2 aus Filtertow, z.B. Celluloseacetat, mit zusammenhängenden Fasern folgende Hauptbaugruppen, die der Streifen 2 nachfolgend durchläuft, auf: eine Abzugsstrecke 3, eine Vorreckstrecke 4, eine Reckstrecke 6, eine Auftragsstrecke 7, eine Raffstrecke 8 und eine Zufuhrstrecke 9. Die Zufuhrstrecke 9 dient zum Zuführen eines Streifenabschnittes zu einer Einlaufeinrichtung einer schematisch dargestellten Filterstrangmaschine 11, z.B. vom in der Tabak verarbeitenden Industrie bekannten Typ KDF2, KDF3 oder KDF4 der Patentanmelderin.According to Fig. 1 the processing device for a stripped off a bale strip 2 of filter tow, eg cellulose acetate, with continuous fibers following main assemblies that passes through the strip 2 below, on: a withdrawal line 3, a Vorreckstrecke 4, a stretch 6, a Auftragsstrecke 7, a Raffstrecke 8 and a feed line 9. The feed line 9 serves to feed a strip section to an inlet device of a filter rod machine 11, shown schematically, for example, from the known in the tobacco industry type KDF2, KDF3 or KDF4 of the patent applicant.

Die Abzugsstrecke 3, in der der von einem hier nicht dargestellten. Ballen abgezogene Filtermaterialstreifen 2 gefördert wird, weist eine Ausbreiterdüse 16 auf, die Druckluft von einer Druckluftquelle erhält. Die Druckluft dient zur Ausbreitung des geförderten Filtertowgewebes in diesem Abschnitt. Eine steuerbare Ausbreiterdüse ist z.B. in der US-A-4 259 769 beschrieben.The withdrawal line 3, in which of a not shown here. Bales withdrawn filter material strip 2 is promoted, has a spreader nozzle 16, which receives compressed air from a compressed air source. The compressed air is used to spread the extracted filter fabric in this section. A controllable spreader nozzle is eg in the US-A-4,259,769 described.

Über ein Umlenkblech 19 gelangt der Filtertowstreifen 2 in die Vorreckstrecke 4, die einerseits von einem Walzenpaar 21 mit den Walzen 22, 23, andererseits von einem Walzenpaar 24 mit motorisch angetriebenen Walzen 26, 27 begrenzt ist. Die Walzen 22, 23 werden vom Towstreifen geschleppt, d.h. sie laufen mit mehr oder weniger Widerstand leer. Wenn erforderlich, können sie motorisch angetrieben werden. Sie können auch in einer an sich bekannten Weise mit steuerbarer Kraft gegeneinander gedrückt werden. In der Vorreckstrecke 4, in der der Streifenabschnitt schräg nach unten gefördert wird, wird das Filtertow 2 vorgereckt.Via a deflection plate 19 of the filter tow 2 passes into the pre-stretch 4, on the one hand by a pair of rollers 21 with the rollers 22, 23, on the other hand by a pair of rollers 24 with motor-driven rollers 26, 27 is limited. The rollers 22, 23 are towed from the tow strip, ie they run empty with more or less resistance. If necessary, they can be powered by a motor. They can also be pressed in a manner known per se with controllable force against each other. In the Vorreckstrecke 4, in which the strip portion is conveyed obliquely down, the filter tow 2 is vorgereckt.

An das Walzenpaar 24 schließt sich die Reckstrecke 6 an, in der der Filtertowstreifen 2 senkrecht oder mit einer senkrechten Komponente von oben nach unten gefördert wird. Am Ende der Reckstrecke 6 befindet sich ein weiteres Walzenpaar 39 aus motorisch angetriebenen Walzen 41, 42, deren Umfangsgeschwindigkeiten etwas größer sind als die Umfangsgeschwindigkeiten der Walzen 26, 27, so dass das elastische Filtertow 2 definiert gereckt wird. Die Walzenpaare 24 und 39 bilden somit die eigentliche Reckeinrichtung. Die Walzen 26 und 41 weisen eine starre, gerillte Oberfläche auf, die jeweils eine nachgiebige Oberfläche der Walzen 27 bzw. 42 berühren. Derartige Walzenkonfigurationen sind durch die vorerwähnten Filtertow-Aufbereitungsgeräte AF 2, AF 3 und AF 4 der Anmelderin bekannt und z.B. in US-A-3 317 965 und US-A-3 255 506 beschrieben.To the pair of rollers 24, the stretching line 6 connects, in which the filter tow 2 is conveyed vertically or with a vertical component from top to bottom. At the end of the stretching section 6 is another pair of rollers 39 of motor-driven rollers 41, 42 whose peripheral speeds are slightly greater than the peripheral speeds of the rollers 26, 27, so that the elastic filter tow 2 is defined stretched. The roller pairs 24 and 39 thus form the actual stretching device. The rollers 26 and 41 have a rigid, grooved surface, each contacting a compliant surface of the rollers 27 and 42, respectively. Such roll configurations are known from the aforementioned filter tup processing devices AF 2, AF 3 and AF 4 of the applicant and, for example, in US-A-3,317,965 and US-A-3 255 506 described.

Dem Walzenpaar 39 ist ein weiteres Walzenpaar 43 mit Walzen 44, 46 nachgeordnet, deren Umfangsgeschwindigkeiten geringer sind als diejenigen der Walzen 41, 42, so dass das Filtertow 2 sich bei seiner Förderung leicht entspannt. Das Walzenpaar 43 weist eine glatte Gummiwalze 44 auf, die mit der Stahlwalze 46 in Berührung steht. Die Walzenpaare 39 und 43 begrenzen somit die, im vorliegenden Fall annähernd horizontal angeordnete, Auftragsstrecke 7, in der eine Auftragseinrichtung (Fig. 2, Bezugzeichen 47) in Form einer Besprühvorrichtung angeordnet ist.The roller pair 39 is followed by a further pair of rollers 43 with rollers 44, 46 whose peripheral speeds are lower than those of the rollers 41, 42, so that the filter tow 2 is slightly relaxed in its promotion. The pair of rollers 43 has a smooth rubber roller 44, which is in contact with the steel roller 46. The roller pairs 39 and 43 thus limit the application path 7, which in the present case is arranged approximately horizontally, in which an application device (FIG. Fig. 2 , Reference numeral 47) is arranged in the form of a spraying device.

Die Auftragseinrichtung 47 besprüht den transportierten Filtertowstreifen 2 von einer oder beiden Seiten mit feinen Tröpfchen eines Lösungsmittels für das Filtertowmaterial, z.B. Triacetin.The applicator 47 sprays the transported filter tow 2 from one or both sides with fine droplets of a solvent for the filter tow material, eg triacetin.

Der Auftragseinrichtung 47 kann innerhalb der Auftragsstrecke 7 eine (hier nicht dargestellte) Ausbreiterdüse vorgeordnet sein, so dass das gereckte Filtertow 2 noch weiter ausgebreitet wird und das Lösungsmittel eine größere Oberfläche des Filtertowstreifens 2 benetzt. Die vor dem Walzenpaar 21 der Vorreckstrecke 4 vorgelagerten Ausbreiterdüsen 16, 17 und gegebenenfalls die Ausbreiterdüse in der Auftragsstrecke 7 werden mit Druckluft beaufschlagt.The application device 47 may be arranged upstream of the applicator section 7 (not shown here) spreader nozzle, so that the stretched filter tow 2 is further spread and the solvent wets a larger surface of the filter tow 2. The upstream of the roller pair 21 of the Vorreckstrecke 4 spreader nozzles 16, 17 and optionally the spreader nozzle in the order path 7 are pressurized with compressed air.

Der Auftragsstrecke 7 ist eine Raffstrecke 8 nachgeordnet, in der der Filtertowstreifen 2 mit überwiegend senkrechter Komponente von einer motorisch angetriebenen Walze 53 von unten nach oben gefördert wird.The order path 7 is a shirring 8 downstream, in which the filter tow 2 is conveyed with predominantly vertical component of a motor-driven roller 53 from bottom to top.

Der Walze 53 ist eine Zufuhrstrecke 9 nachgeordnet. In der Zufuhrstrecke 9 ist außerdem eine an sich bekannte sog. Stopfdüse vorhanden. Nach Durchlaufen der Stopfdüse wird das Filtertow einer Filterstrangmaschine 11 zugeführt.The roller 53 is arranged downstream of a feed path 9. In the feed line 9 also known per se so-called. Stopfdüse is present. After passing through the Stopfdüse the filter tow is fed to a filter rod machine 11.

Bezüglich weiterer Einzelheiten wird ausdrücklich auf US-A-5 590 449 verwiesen.For more details is expressly on US-A-5 590 449 directed.

In Fig. 2 ist eine Auftragseinrichtung 47 zum Aufbringen eines Weichmachers, z.B. Triacetin, auf den ausgebreiteten Filtertowstreifen 2 in einer schematischen Querschnittsansicht während der laufenden Produktion gezeigt. Der Streifen 2 aus Filtermaterial wird gemäß der Förderrichtung F von rechts nach links transportiert. Im unteren Bereich der Auftragseinrichtung 47 sind mehrere Auftragsdüsen 31, von denen nur eine dargestellt ist, angeordnet, die einen Sprühkegel 32 mit Weichmachertröpfchen aus Triacetin während der laufenden Produktion erzeugt. Mittels der Auftragsdüsen 31 wird eine feine, nebelartige Zerstäubung eines Weichmachers, z.B. Triacetin, erreicht.In Fig. 2 For example, an applicator 47 for applying a plasticizer, eg triacetin, to the spread filter tow 2 in a schematic cross-sectional view during on-going production is shown. The strip 2 of filter material is transported according to the conveying direction F from right to left. In the lower area of the applicator 47 are a plurality of application nozzles 31, of which only one is shown, which generates a spray cone 32 with plasticizer droplets of triacetin during ongoing production. By means of the application nozzles 31, a fine, mist-like atomization of a plasticizer, for example triacetin, is achieved.

Der Streifen 2 wird über untere Abstreifbleche 33, 34 durch die Auftragseinrichtung 47 geführt. Die unteren Abstreifbleche 33, 34 sind im unteren Bereich der Auftragseinrichtung 47 bzw. des unteren Gehäuseteils 13 angeordnet. Oberhalb des Filtertows 2 sind drei Abstreifbleche 15 im geschlossenen Gehäuse der Auftragseinrichtung 47 am oberen Gehäuseteil 12 angeordnet.The strip 2 is guided through lower stripping plates 33, 34 by the applicator 47. The lower stripping plates 33, 34 are arranged in the lower region of the application device 47 or of the lower housing part 13. Above the filter tow 2, three stripping plates 15 are arranged in the closed housing of the application device 47 on the upper housing part 12.

Die oberen Abstreifbleche 15 sind hakenförmig bzw. V-förmig bzw. nach Art einer Parabel ausgebildet. An der Unterseite der Abstreifbleche 15 wird der ausgebreitete Filtertowstreifen 2 gemäß der eingezeichneten Förderrichtung F vorbei transportiert. Hierbei berühren sich im untersten Punkt des Abstreifbleches 15 das Filtertow 2 und das Abstreifblech 15.The upper Abstreifbleche 15 are hook-shaped or V-shaped or formed in the manner of a parabola. On the underside of the stripping plates 15, the spread-out filter tow strip 2 is transported past according to the marked conveying direction F. In this case, touching the filter tow 2 and the stripping plate 15 in the lowest point of the stripping plate 15.

Darüber hinaus ist im Eintrittsbereich des Streifens 2 in die Auftragseinrichtung 47 ein weiteres Abstreifblech 14 oberhalb des Filtertows 2 angeordnet.In addition, a further stripper plate 14 is disposed above the filter tow 2 in the entry region of the strip 2 in the applicator 47.

Durch den Auftrag von Triacetin auf den Filtertowstreifen 2 beispielsweise mittels einer Auftragsdüse oder einer Auftragsbürste, die hier nicht dargestellt ist, werden Tröpfchen von Triacetin auf das Filtertow 2 appliziert. Aufgrund der Flüchtigkeit der Triacetin-Tröpfchen ist die Atmosphäre im Gehäuse der Auftragseinrichtung 47 mit Triacetin-Tröpfchen angereichert.By applying triacetin to the filter tow 2, for example, by means of an application nozzle or an application brush, which is not shown here, droplets of triacetin are applied to the filter tow 2. Due to the volatility of the triacetin droplets, the atmosphere in the applicator housing 47 is enriched with triacetin droplets.

In den in Fig. 3 und Fig. 4 gezeigten Ausführungsbeispielen bei Unterbrechung der Produktion wurde die Zufuhr von Triacetin über die Auftragsdüsen 31 beendet und ein Produktionsstopp an einer Aufbereitungsmaschine für Filtermaterial eingeleitet.In the in Fig. 3 and Fig. 4 In embodiments shown, when production was interrupted, the supply of triacetin via the application nozzles 31 was stopped and a production stop was initiated on a filter material processing machine.

In Fig. 3 ist eine erfindungsgemäße Anordnung an der Auftragseinrichtung 47 gemäß einem ersten Ausführungsbeispiel im Querschnitt dargestellt. Hierbei ist der Auftrag über die Auftragsdüsen 31 beendet und der Streifen 2 angehalten. Nach einem kompletten Maschinenstopp wird das geschlossene Gehäuse der Auftragseinrichtung 47 geöffnet, wobei das obere Gehäuseteil 12 nach Beendigung des Triacetinauftrags und der Förderung des Streifens 2 nach oben angehoben wird. Das untere Gehäuseteil 13 bleibt ortsfest.In Fig. 3 is an inventive arrangement on the applicator 47 shown in cross section according to a first embodiment. In this case, the job on the application nozzles 31 is completed and the strip 2 stopped. After a complete machine stop, the closed housing of the applicator 47 is opened, wherein the upper housing part 12 is raised after completion of Triacetinauftrags and the promotion of the strip 2 upwards. The lower housing part 13 remains stationary.

Nach der Öffnung des Gehäuses der Auftragseinrichtung 47 werden stabförmige Haltestäbe 18, 20 von unten an den Streifen 2 nach oben bewegt, so dass der Streifen 2 aus seiner ursprünglichen Lage während der Produktion von Filtersträngen bzw. Filterstäben nach oben ausgelenkt wird. Hierbei liegt der Streifen 2 nicht mehr auf den kontaktführenden unteren Abstreifblechen 33, 34 des unteren Gehäuseteils 13, so dass nach Auslenkung des Streifens 2 durch die seitlich hochgefahrenen Haltestäbe 18, 20 der Streifen 2 im Bereich der Auftragsstrecke oberhalb des Gehäuseteils 13 mit Abstand gehalten wird. Hierbei hat der Streifen 2 keinen Kontakt mit Einrichtungen, z.B. den Abstreifblechen 33, 34, oder Organen oder dergleichen der Auftragsstrecke 7, an denen Triacetinablagerungen vorhanden sind.After opening the housing of the applicator 47 rod-shaped support rods 18, 20 are moved from below to the strip 2 upwards, so that the strip 2 is deflected from its original position during the production of filter strands or filter rods upwards. In this case, the strip 2 is no longer on the contact-carrying lower Abstreifblechen 33, 34 of the lower housing part 13, so that after deflection of the strip 2 by the laterally raised support rods 18, 20 of the strip 2 is held in the range of Auftragsstrecke above the housing part 13 at a distance , In this case, the strip 2 has no contact with devices, e.g. the Abstreifblechen 33, 34, or organs or the like the Auftragsstrecke 7, where triacetin deposits are present.

Das Anheben der Haltestäbe 18, 20 ist in der Zeichnung durch vertikal nach oben weisende Pfeile angedeutet.The lifting of the support rods 18, 20 is indicated in the drawing by vertically upwardly pointing arrows.

Die Produktionslage des Streifens 2 ist in Fig. 3 gestrichelt eingezeichnet. Durch das Anheben des ruhenden, d.h. stillstehenden Streifens 2 mittels der vertikal bewegten Haltestäbe 18, 20, befindet sich der Streifen 2 in der in Fig. 3 dargestellten Stellung in einer Ruheposition, in der Triacetinablagerungen mit dem Filtertowstreifen 2 nicht in Kontakt geraten.The production situation of the strip 2 is in Fig. 3 dashed lines. By lifting the resting, ie stationary strip 2 by means of the vertically moving support rods 18, 20, the strip 2 is in the in Fig. 3 illustrated position in a rest position in which Triacetinablagerungen with the filter tow 2 do not come into contact.

Um während der Stillstandszeit der Maschine bzw. des Filtertowstreifens eine Entspannung des gereckten Streifens 2 auszubilden, kann in einer Weiterbildung der berührende Kontakt zwischen den Walzen 41, 42 des Walzenpaares 39 durch Wegschwenken der Walze 42 beendet werden. Dies ist in Fig. 3 mit einem nach links weisenden Pfeil an der Walze 42 angedeutet.In order to form a relaxation of the stretched strip 2 during the standstill time of the machine or of the filter tow strip, the contacting contact between the rollers 41, 42 of the roller pair 39 can be terminated by pivoting the roller 42 away in a development. This is in Fig. 3 indicated with an arrow pointing to the left on the roller 42.

Im Rahmen der Erfindung ist es ebenso möglich, dass das eingangsseitige Walzenpaar der Reckstrecke (vgl. Fig. 1, Bezugszeichen 24) geöffnet wird, so dass die eingangsseitigen Walzen (vgl. Fig. 1, Bezugzeichen 26, 27) nicht mehr in berührendem Kontakt stehen. Dadurch, dass bei einem Maschinenstillstand die Aufbereitung des Streifens 2 durch Reckung ebenfalls beendet wird oder ist, liegt der Streifen 2 im Bereich der Auftragsstrecke 7 bei Stillstand der Produktion in einem entspannten Zustand vor.In the context of the invention, it is also possible that the input side roller pair of the stretching section (see. Fig. 1 , Reference numeral 24) is opened, so that the input-side rollers (see. Fig. 1 , Reference numerals 26, 27) are no longer in touching contact. Due to the fact that during a machine standstill the preparation of the strip 2 is also terminated by stretching, the strip 2 is in a relaxed state in the region of the application path 7 when the production is at a standstill.

Ferner ist es denkbar, dass bei Stillstand der Maschine bzw. Produktionsstopp der berührende Kontakt zwischen den Walzen 44, 46 des ausgangsseitigen Walzenpaares an der Auftragsstrecke 7 ebenfalls für die Dauer des Stillstands beendet wird.Furthermore, it is conceivable that, when the machine or production stop is at a standstill, the contacting contact between the rollers 44, 46 of the output-side roller pair at the application path 7 is likewise terminated for the duration of the standstill.

Um die Produktion an einer Aufbereitungsmaschine in Gang zu setzen, werden die Haltestäbe 18, 20 abgesenkt. Anschließend wird das obere Gehäuseteil 12 nach unten bewegt, wodurch das Gehäuse der Auftragseinrichtung 47 geschlossen wird. Anschließend oder gleichzeitig werden die Walzenpaare 39, 43 der Auftragsstrecke 7 und der Reckeinrichtung in berührenden Kontakt gebracht, sofern während der Stillstandzeit die entsprechenden Walzen der Walzenpaare voneinander getrennt worden sind.In order to start production on a processing machine, the holding rods 18, 20 are lowered. Subsequently, the upper housing part 12 is moved downward, whereby the housing of the applicator 47 is closed. Subsequently or simultaneously, the pairs of rollers 39, 43 of the application path 7 and the stretching device are brought into touching contact, if during the downtime the corresponding rolls of the pairs of rolls have been separated from each other.

Zur Inbetriebnahme wird nachfolgend der Streifen 2, der in der Auftragsstrecke 7 horizontal gefördert wird, nach seiner Reckung in der Reckstrecke (vgl. Fig. 1, Bezugszeichen 6) in der Auftragsstrecke mit Triacetin über die Auftragsdüse 31 besprüht (vgl. Fig. 2).For commissioning, the strip 2, which is conveyed horizontally in the application path 7, after its stretching in the following Stretching line (cf. Fig. 1 , Reference numeral 6) in the order path with triacetin on the application nozzle 31 sprayed (see. Fig. 2 ).

Bei dem in Fig. 4 gezeigten Ausführungsbeispiel wird das Gehäuse der Auftragseinrichtung 47, bestehend aus einem oberen Gehäuseteil 12 und einem unteren Gehäuseteil 13, dadurch geöffnet, dass das obere Gehäuseteil 12 angehoben und das untere Gehäuseteil 13 in Bezug auf den Streifen 2 abgesenkt wird, so dass der zwischen den Walzenpaaren 39 und 43 angeordnete Streifen 2 nicht in Kontakt mit den unteren und oberen Abstreifblechen 33, 34 bzw. 15 gerät, um Ablagerungen von Triacetin an den Abstreifblechen 33, 34 aufzunehmen. Außerdem wird durch das Absenken des unteren Gehäuseteils 13 der Kontakt zwischen dem Einlaufblech 28 auf der Eingangsseite der Auftragseinrichtung 47 sowie dem Auslaufblech 30 auf der Ausgangsseite unterbrochen bzw. beendet. Das Einlaufblech 28 und das Auslaufblech 30 sind am unteren Gehäuseteil 13 angeordnet und weisen nach außen.At the in Fig. 4 In the exemplary embodiment shown, the housing of the application device 47, consisting of an upper housing part 12 and a lower housing part 13, is opened by raising the upper housing part 12 and lowering the lower housing part 13 with respect to the strip 2, so that the between the roller pairs 39 and 43 arranged strip 2 is not in contact with the lower and upper Abstreifblechen 33, 34 and 15 device to record deposits of triacetin to the Abstreifblechen 33, 34. In addition, the contact between the inlet plate 28 on the input side of the applicator 47 and the outlet plate 30 is interrupted or terminated on the output side by lowering the lower housing part 13. The inlet plate 28 and the outlet plate 30 are arranged on the lower housing part 13 and point outwards.

Zur Inbetriebnahme der Produktion bzw. der Auftragseinrichtung 47 werden das untere Gehäuseteil 13 und das obere Gehäuseteil 12 in ihre Arbeitsposition zurückgefahren.To start up the production or the applicator 47, the lower housing part 13 and the upper housing part 12 are moved back to their working position.

Im Rahmen der Erfindung ist es für einen Fachmann selbstverständlich, dass bestimmte Merkmale der beiden Ausführungsvarianten im Rahmen der Offenbarung miteinander kombiniert werden können, wobei eine derartige Ausführungsform darauf gerichtet ist, dass ein automatisches Wiederanfahren des Produktionsprozesses ohne bzw. mit wenigen manuellen Handgriffen möglich sein soll.In the context of the invention, it is obvious to a person skilled in the art that certain features of the two variants can be combined with one another within the scope of the disclosure, such an embodiment being directed to an automatic restarting of the production process being possible without or with a few manual manipulations ,

BezugszeichenlisteLIST OF REFERENCE NUMBERS

22
Streifenstrip
33
Abzugstreckeextraction path
44
Vorreckstreckepre-stretching
66
Reckstreckestretching section
77
Auftragsstreckecoating section
88th
Raffstreckegathering section
99
Zufuhrstreckesupply route
1111
FilterstrangmaschineFilter rod machine
1212
oberes GehäuseteilUpper housing part
1313
unteres Gehäuseteillower housing part
1414
Abstreifblechstripper
1515
Abstreifblechstripper
1616
Ausbreiterdüsespreading nozzle
1717
Ausbreiterdüsespreading nozzle
1818
Haltestabretaining bar
1919
Umlenkblechbaffle
2020
Haltestabretaining bar
2121
Walzenpaarroller pair
2222
Walzeroller
2323
Walzeroller
2424
Walzenpaarroller pair
2626
Walzeroller
2727
Walzeroller
2828
Einlaufblechinfeed plate
3030
Auslaufblechdelivery plate
3131
Auftragsdüseapplicator
3232
Sprühkegelspray cones
3333
Abstreifblechstripper
3434
Abstreifblechstripper
3737
Einlaufschlitzinlet slot
3838
Auslaufschlitzoutlet slot
3939
Walzenpaarroller pair
4141
Walzeroller
4242
Walzeroller
4343
Walzenpaarroller pair
4444
Gummiwalzesqueegee
4646
Stahlwalzesteel roll
4747
Auftragseinrichtungapplicator
5353
Walzeroller
FF
Förderrichtungconveying direction

Claims (5)

  1. Method for the treatment of a strip (2) of filter material in the tobacco-processing industry, in particular filter tow strip (2), which is conveyed along a conveyor section (6, 7, 8), wherein a, preferably liquid, additive (32) is applied to the strip (2) in an application section (7) by means of an application device (47, 31), characterised in that during or after introduction of a stoppage in production the contact between the strip (2) and at least one point contacting the strip (2) within the application section (7) is terminated.
  2. Method according to claim 1, characterised in that the strip (2) is raised by means of at least one raising device (18, 20).
  3. Method according to claim 1 or 2, characterised in that an upper housing part (12) and a lower housing part (13) of the application device (47) are separated from one another.
  4. Method according to one of claims 1 to 3, characterised in that an upper housing part (12) of the application device (47) is raised and/or a lower housing part (13) of the application device is (47) lowered.
  5. Method according to one of claims 1 to 4, characterised in that the application device (47) is closed for the commencement of production.
EP07002496A 2006-03-10 2007-02-06 Treatment of a filter material rod of the tobacco processing industry Active EP1834530B1 (en)

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ITBO20060646A1 (en) * 2006-09-20 2006-12-20 Gd Spa MACHINE FOR THE PRODUCTION OF CIGARETTE FILTERS

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4257344A (en) * 1977-12-23 1981-03-24 Francois Coq Device for depositing a liquid binder on a fibrous sheet for manufacturing cigarette filters

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ATE485733T1 (en) 2010-11-15
EP1834530A1 (en) 2007-09-19
DE102006011599B4 (en) 2007-12-20
DE502007005444D1 (en) 2010-12-09
DE102006011599A1 (en) 2007-09-13
PL1834530T3 (en) 2011-04-29

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