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EP4099851A1 - Device and method for producing a rod of the tobacco processing industry - Google Patents

Device and method for producing a rod of the tobacco processing industry

Info

Publication number
EP4099851A1
EP4099851A1 EP21712429.6A EP21712429A EP4099851A1 EP 4099851 A1 EP4099851 A1 EP 4099851A1 EP 21712429 A EP21712429 A EP 21712429A EP 4099851 A1 EP4099851 A1 EP 4099851A1
Authority
EP
European Patent Office
Prior art keywords
embossing
flat web
strand
strips
rod
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP21712429.6A
Other languages
German (de)
French (fr)
Other versions
EP4099851B1 (en
Inventor
Stephan Wolff
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Koerber Technologies GmbH
Original Assignee
Hauni Maschinenbau GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=74884918&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP4099851(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
Publication of EP4099851A1 publication Critical patent/EP4099851A1/en
Application granted granted Critical
Publication of EP4099851B1 publication Critical patent/EP4099851B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24C—MACHINES FOR MAKING CIGARS OR CIGARETTES
    • A24C5/00—Making cigarettes; Making tipping materials for, or attaching filters or mouthpieces to, cigars or cigarettes
    • A24C5/14—Machines of the continuous-rod type
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24C—MACHINES FOR MAKING CIGARS OR CIGARETTES
    • A24C5/00—Making cigarettes; Making tipping materials for, or attaching filters or mouthpieces to, cigars or cigarettes
    • A24C5/14—Machines of the continuous-rod type
    • A24C5/18—Forming the rod
    • A24C5/1828—Forming the rod by cutting tobacco sheet material
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24C—MACHINES FOR MAKING CIGARS OR CIGARETTES
    • A24C5/00—Making cigarettes; Making tipping materials for, or attaching filters or mouthpieces to, cigars or cigarettes
    • A24C5/39—Tobacco feeding devices
    • 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
    • A24D1/00—Cigars; Cigarettes
    • A24D1/20—Cigarettes specially adapted for simulated smoking devices
    • 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

Definitions

  • the invention relates to a device for producing a rod in the tobacco-processing industry, comprising a supply device, a separating device, a rod-forming device and a
  • the supply device is set up to provide a flat web and to feed it to the separating device arranged downstream of the preparation device, the separating device is set up to separate the flat web into a plurality of strips which are arranged downstream of the separating device
  • the strand-forming device is set up to form a strand from the plurality of strips and the embossing device is arranged between the supply device and the strand-forming device and is set up to introduce an embossing into the flat web or a plurality of the strips.
  • the invention also relates to a method for producing a strand of the tobacco processing industry, comprising the fol lowing steps: providing a flat web with a provision device and feeding the flat web to a downstream downstream of the preparation device, separating the flat web into a plurality of strips with the separating device, forming a strand from the plurality of strips with a strand forming device, embossing the flat web or a plurality of the strips.
  • a device for producing a strand in the tobacco processing industry which comprises a separating device with which a flat web is separated into a plurality of individual strips, emerges from DE 1 954 036 A1, for example.
  • the flat web is cut into parallel strips with the help of a disk knife cutting device.
  • the strips are then combined in a strand and wrapped around them.
  • a flat sheet of reconstituted tobacco material is processed.
  • the produced and wrapped strand is then cut into segments of a predetermined length, so that rod-shaped articles for the tobacco processing industry can be produced.
  • Another device for producing a strand from reconstituted tobacco material is known from DE 10 2018 106 826. This device comprises a separating device which is set up to convert a flat web of reconstituted tobacco material into a
  • the strips In the production of tobacco sticks from strips that are cut or separated from reconstituted tobacco material, the strips are shaped into tobacco sticks in a format and then put together and wrapped by means of combining machines.
  • the quality of the raw material i.e. the film made from reconstituted tobacco material (also known as “recon film”), fluctuates. This results in fluctuations in the mechanical hardness and the tensile resistance of the manufactured tobacco sticks. Since these two parameters are If important quality parameters are involved, it is desirable to influence them during production, ideally to control them. In this way, unnecessary rejects or even a production stop can be avoided.
  • a device for producing a strand of the tobacco processing industry comprising a provision device, a separating device, a strand forming device and an embossing device, wherein
  • the provision device is set up to provide a flat track and to feed it to the separating device arranged downstream of the provision device
  • the strand-forming device arranged downstream of the cutting device is set up to form a strand from the plurality of strips and
  • the embossing device is arranged between the supply device and the strand-forming device and is set up to bring an embossing into the flat web or a plurality of the strips, this device being developed in that the embossing device comprises an adjusting device with which a height of the embossing ver can be changed and at least one sensor unit and a control unit coupled to it are included, the at least one sensor unit being set up to measure at least one physical parameter of the flat web and / or the strand and / or the one produced from the strand.
  • th rod-shaped article and the control unit is set up to control and / or regulate a height of the embossing with the adjusting device as a function of the measured physical parameter.
  • the embossing made in the flat web or in the majority of the strips is a texturing of the material. Elevations and / or depressions are made in the material, which are of any shape. For example, points, circles, ellipses, knurls, crosses, polygons and combinations of these shapes or even non-uniform shapes can be introduced as the shape of the embossing.
  • embossing a three-dimensional shape into the film or the strips the strips present in the strand have a higher filling power. The filling power of the embossed strips is therefore higher compared to non-embossed strips. If the flat web is embossed, this texturing of the flat web is retained when it is separated in the cutting device, i.e. the strips produced are also embossed or textured.
  • stacks stack-shaped arrangements
  • the strips are therefore, viewed in a cross section of the strand, in a stack on top of one another, their flat sides almost completely touching each other, at least in sections.
  • stacks within the strand mean that in the rod-shaped article produced by the tobacco processing industry, not the full surface of the strips can be used.
  • the inner surfaces of the strips, which lie directly on top of one another in the stacks, are not accessible to an air flow, for example. These surfaces can therefore only release a very small amount of aroma and active substances into the air flow.
  • the stacks have an undesirable influence on the tensile resistance.
  • the tensile resistance in an article with a large number of stacks is lower than in an article without a stack.
  • the embossing of the flat web advantageously prevents the strips from forming stacks in the strand, that is to say lying against one another over their entire surface at least in sections.
  • the embossing of the strips also has the advantage that the strips hook into each other due to the individual elevations and depressions of the embossing. This reduces the probability that individual strips at the head end fall out of the rod-shaped article or are pulled out when the rod-shaped article is in use. The individual strips are therefore more stable in position and there is less fiber displacement. This has advantages not only in terms of the end product, but also in terms of handling the rod-shaped article. Since the rod-shaped articles are often promoted with compressed air in the production process, improved Positionsstabili ity of the individual strips with regard to the achievable quality of the individual rod-shaped articles is advantageous. In other words, the probability is reduced that individual strips, due to the treatment in the production process, will protrude from the front side of the head area of the rod-shaped article.
  • the flat web can be reconstituted tobacco material (Recon film). This can be produced by the slurry process or by the paper process.
  • the flat web can also be a film, for example a PLA film.
  • the flat sheet can be made of paper or cardboard. While rod-shaped HNB articles (HNB stands for heat not burn), for example, can be produced from Recon-Foil, cooling elements, spacer elements or filter elements for or as rod-shaped articles for the tobacco processing industry can be produced from film, paper or cardboard.
  • the embossing device comprises an adjusting device with which a height of the embossing can be changed.
  • a height of the embossing is a maximum distance between an elevation or a depression from a plane in which the surrounding material of the flat web or of the strip extends. Only the amount of this distance is considered, i.e. no distinction is made between elevation and depression in terms of its height. Changing the height advantageously allows the three-dimensional shape of the strips to be varied. The three-dimensional shape is therefore more pronounced (high height) or less pronounced (low height).
  • the device is developed in that the adjusting device is set up to change a pressure applied by the embossing device, in particular by at least one embossing roller, to the flat web or the plurality of strips.
  • the change in the pressure applied by the embossing roller (s) to the flat web or the majority of the strips provides a simple control variable with which the height of the embossing and thus, for example, the filling force of the strips can be changed.
  • the device comprises at least one sensor unit and a control unit coupled to it.
  • the at least one sensor unit is set up to measure at least one physical parameter of the flat web and / or the strand and / or the rod-shaped article produced from the strand.
  • the control unit is set up to provide a To control and / or regulate the height of the embossing with the adjusting device as a function of the measured physical parameter.
  • the device comprises at least one sensor unit which is designed to measure at least one physical parameter of the flat web of the strand or of the rod-shaped articles produced.
  • sensor units can also be provided so that in each case at least one physical parameter at one point, for example on the flat track, or the same parameter, for example the tensile resistance, at several points in the production process, for example on the strand and additionally on the rod-shaped Articles that can be measured. Any combination of these measurements is of course also possible.
  • the device according to this embodiment allows a comprehensive process control.
  • the device is developed in that the sensor unit is a thickness measuring device which is set up to measure a material thickness of the flat web as a physical parameter of the flat web.
  • the device is developed according to a further embodiment in that the sensor unit is set up to measure a mechanical hardness and / or a tensile resistance of the strand and / or the rod-shaped article as physical parameters.
  • the thickness measuring device is in particular a non-contact thickness measuring device.
  • the material thickness is measured with a light system or an ultrasound system.
  • the strand-forming device is also set up to cut the produced strand to length into individual rod-shaped articles, and the sensor unit is for this purpose set up to carry out an individual test on the cut-to-length rod-shaped articles.
  • the strength of the embossing can be present as a control and / or regulating parameter in the device, so that a very constant process can be carried out.
  • the control of the intensity of the embossing according to one embodiment, the pressure applied by means of the embossing rollers to the flat web or the plurality of strips, can be controlled and / or regulated as it is described, for example, in EP 0242 824 B1.
  • the height of a trimmer disc is changed with the help of a servomotor in order to keep the mechanical properties of the cigarettes produced constant.
  • the pressure of the embossing rollers can be used in a control or regulation implemented according to the invention.
  • Sensor units for determining the mechanical hardness and / or the tensile resistance of the strand are known for example from EP 0284640 B1.
  • the embossing is carried out in a termitting manner.
  • the embossing device is set up to introduce an intermittent embossing into the flat web or the plurality of strips.
  • the flat web is partially in a non-embossed state, in a subsequent section it is in turn in an embossed state.
  • These embossed and Non-embossed areas alternate, preferably they alternate regularly.
  • the positions of the embossed and non-embossed areas are matched to the position of the strips in the rod-shaped article produced.
  • a corresponding position control can be carried out or provided. It is thus advantageously possible to provide rod-shaped articles which comprise embossed strips in certain areas and comprise non-embossed strips in other areas.
  • the strips can not be embossed in the area of a head end, so that a heating mandrel, a heating shield or the like can easily be inserted in this area.
  • a rod-shaped article is, for example, an HNB article.
  • the embossing can also vary along a longitudinal direction of the flat web. This means that the embossing may be weaker in some areas than in others. Here, too, weakly embossed and more strongly embossed areas can alternate, in particular alternate regularly, as before with regard to the non-embossed and embossed areas
  • the imprint can also be continuously variable and, for example, follow a periodic function.
  • a height of the embossing varies periodically along the direction of the longitudinal extension of the strips.
  • rod-shaped articles can be provided which comprise strips whose embossing increases, for example, from the head end in the direction of a mouthpiece.
  • a reverse course of the thickness of the embossing can also be provided.
  • the device is developed in that the embossing device is arranged between the preparation device and the separating device and is designed to introduce the embossing into the flat web.
  • the supply device comprises a pair of draw rollers, which is set up to pull the flat web from a reel of the supply device, and the embossing device is arranged between the pair of draw rollers and the separating device.
  • the object is also achieved by a method for producing a strand of the tobacco processing industry, comprising the following steps:
  • Embossing the flat web or a plurality of the strips this method being developed in that the embossing device is adjusted with an adjusting device in such a way that a height of the embossing changes, with a sensor unit and a control unit coupled to it physical parame ter of the flat web and / or the strand and / or the rod-shaped article produced from the strand is measured and a height of the embossing is controlled and / or regulated with the adjustment device depending on the measured physical parameter.
  • the method offers an additional control and / or control parameter, namely the intensity of the embossing. This advantageously makes it possible to run a constant process or to compensate for variations in the starting material through active readjustment of the parameter.
  • the method is developed in that a pressure applied by the embossing device, in particular by at least one embossing roller, to the flat web or the plurality of strips is changed with the adjusting device.
  • a material thickness of the flat web is measured as a physical parameter with the sensor unit.
  • a mechanical hardness and / or a tensile resistance of the strand and / or the rod-shaped article is measured as a physical parameter with the sensor unit.
  • individual rod-shaped articles are cut to length with the strand-forming device from the strand produced.
  • the sensor unit is used to measure individual rod-shaped articles, for example with regard to mechanical hardness and / or tensile resistance.
  • the method is further developed in that the flat web is embossed with the embossing device.
  • Fig. 1 shows a device for producing a strand of the tobacco processing industry in a schematically simplified Be tenansicht
  • Fig. 2 is a plan view of an embossed flat web
  • Fig. 3 is a cross-sectional view of a rod-shaped article of the tobacco processing industry, which is made from a plurality of non-embossed strips.
  • FIG. 1 shows a schematic and simplified representation of a device 2 for producing a strand 4 from a flat web 6.
  • the flat web 6 is provided by a supply device 10 and, for example, unrolled from a reel 8.
  • the material of the flat web 6 is, for example, reconstituted tobacco material (Recon), a film, for example PLA film, paper or cardboard.
  • the flat web 6 is fed to a separating device 12 comprised by the device 2.
  • Separating device 12 is set up to separate the flat web 6 into a large number of strips 14.
  • the strips 14 extend in egg ner strip plane, which is plane in the illustration of FIG. 1 perpendicular to the paper.
  • Fig. 1 is a schematic plan view as a detailed view shown on the plurality of strips 14 produced, this view being rotated 90 ° out of the plane of the paper for clarification.
  • the strips 14, which run essentially parallel to one another, are moved, for example, via transport rollers 16 in the direction of an inlet funnel
  • a smooth, flat guide for example a sheet metal or the like, can be provided over which the strips 14 are pulled and / or pushed.
  • a smooth, flat guide for example a sheet metal or the like
  • the strand-forming device 20 is part of the device 2 for producing the strand 4.
  • the strand 4 is formed from the plurality of strips 14.
  • the string formation takes place, for example, in a format channel 22, which is only indicated schematically. After the strand formation, the strand 4 can be cut to length into individual rod-shaped articles 24 of a desired length.
  • the severing device 12 for severing the flat web 6 comprises a first roller 26 and a second roller cooperating with this
  • the two rollers 26, 28 are not in mechanical contact with one another.
  • the first roller 26 rotates about a first axis of rotation 27, the second roller 28 rotates about a second axis of rotation 29.
  • the separating device 12 is configured, for example, as described in DE 10 2018 106 826 A1 of the applicant Hauni Maschinenbau GmbH.
  • the device 2 further comprises an embossing device 30 which is arranged between the provision device 10 and the strand forming device 20.
  • the embossing device 30 is between the supply device 10 and the
  • Separating device 12 is arranged and set up to introduce an embossing into the flat web 6.
  • the supply device 10 is also made for the supply device 10 to include a pair of draw rollers 32 which is set up to produce the flat web 6 to be withdrawn from the reel 8 of the provision device 10.
  • the embossing device is arranged between this pair of drawing rollers 32 and the separating device 12.
  • the embossing device 30 does not have to exert any tensile forces on the flat web 6.
  • the embossing device 30 consists, for example, of a pair of embossing rollers. According to a further embodiment, the embossing device 30 is arranged downstream of the separating device 12 and, in the case of such an arrangement, does not emboss the flat web 6, but rather the strips 14 produced from the flat web 6 by means of the separating device 12. This alternative position of the embossing device 30 is shown in FIG. 1 shown with a dashed line. The statements made below with regard to the flat web 6 and its embossing also apply in the same way to the strips 14 and their embossing.
  • FIG. 2 shows a top view of a flat web 6, which comprises circular recesses 34 arranged in a regular grid, of which only a few are provided with reference numerals for the sake of clarity, as embossing.
  • the embossing device 30 comprises, for example, an adjusting device, not shown in FIG. 1, with which a height of the embossing can be changed.
  • Such an adjusting device is set up, for example, to change a pressure applied to the flat web 6 by the embossing device 30, for example by the schematically illustrated embossing rollers.
  • a higher pressure depressions with a greater depth result than is the case with lower pressure.
  • Depressions appear on the back of the flat web as elevations, which have a height, i.e. a distance to the surrounding material, viewed in one direction perpendicular to the plane in which the surrounding material extends, assigned can be assigned.
  • a depression can also be characterized on the basis of the height of the embossing.
  • the device 2 further comprises, for example, a thickness measuring device 36 as a sensor unit.
  • the thickness measuring device 36 is set up to measure a material thickness of the flat web 6 as a physical parameter of the flat web 6.
  • the device 2 further comprises, for example, a further sensor unit 35 which is set up to measure a mechanical hardness and / or a tensile resistance of the strand 4.
  • a further sensor unit 35 is provided, which is set up to measure the mechanical hardness and / or the tensile resistance of the individual rod-shaped articles 24. All of these sensor units 35 are coupled to a control unit 38 via suitable data connections which are not shown for reasons of clarity.
  • the embossing device 30 is also coupled to the control unit 38 via a data connection (not shown for reasons of clarity).
  • the control unit 38 receives measured values, for example relating to a material thickness of the flat web 6, a hardness or a tensile resistance of the strand 4 or of the individual articles 24 and controls and / or regulates a level of the amount introduced into the flat web 6 by the embossing device 30 as a function of these measured values Embossing.
  • the regulation takes place, for example, via the pressure exerted on the flat web 6 by the pair of embossing rollers. In this way, fluctuations in the thickness of the flat web 6 can be compensated for.
  • the embossing introduced into the flat web 6 also has the advantage that no stacks 40 of individual strips are formed in the rod-shaped articles 24.
  • This is intended to take the example of the one shown in FIG. 3 Simplified cross-sectional view will be explained, which shows a cross-section through a rod-shaped article 24 which comprises individual strips which are not embossed.
  • the areas marked in the cross-sectional view shown have stacks 40 of individual strips in which the flat sides of these strips lie almost plane-parallel on one another. In the area of such stacks 40, a reduced surface area of the individual strips 14 is available.
  • the embossing of the flat web 6 and thus also of the individual strips 14, as shown by way of example in FIG. 2, can prevent the strips 14 from lying on top of one another over their entire surface. No stacks are formed.

Landscapes

  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)
  • Manufacturing Of Cigar And Cigarette Tobacco (AREA)

Abstract

The invention relates to a device (2) and a method for producing a rod (4) of the tobacco processing industry, comprising a supply device (10), a separating device (12), and a rod-shaping device (20), wherein the supply device (10) is designed to supply a flat web (6) and provide same to the separating device (12) arranged downstream of the supply device (10), the separating device (12) is designed to separate the flat web (6) into a plurality of strips (14), and the rod-shaping device (20) arranged downstream of the separating device (12) is designed to form a rod (4) from the plurality of strips (14). The device (2) is improved by an embossing device (30) which is arranged between the supply device (10) and the rod-shaping device (20) and is designed to introduce an embossing into the flat web (6) or a plurality of the strips (14).

Description

Vorrichtung und Verfahren zum Herstellen eines Strangs der Tabak verar beitenden Industrie Apparatus and method for producing a strand of the tobacco processing industry

Beschreibung description

Die Erfindung betrifft eine Vorrichtung zum Herstellen eines Strangs der Tabak verarbeitenden Industrie, umfassend eine Bereitstellungsvorrich- tung, eine Trennvorrichtung, eine Strangformungsvorrichtung und eineThe invention relates to a device for producing a rod in the tobacco-processing industry, comprising a supply device, a separating device, a rod-forming device and a

Prägevorrichtung, wobei die Bereitstellungsvorrichtung dazu eingerichtet ist, eine Flachbahn bereitzustellen und der stromabwärts der Bereitstel lungsvorrichtung angeordneten Trennvorrichtung zuzuführen, die Trenn vorrichtung dazu eingerichtet ist, die Flachbahn in eine Vielzahl von Strei- fen aufzutrennen, die stromabwärts der Trennvorrichtung angeordneteEmbossing device, wherein the supply device is set up to provide a flat web and to feed it to the separating device arranged downstream of the preparation device, the separating device is set up to separate the flat web into a plurality of strips which are arranged downstream of the separating device

Strangformungsvorrichtung dazu eingerichtet ist, aus der Vielzahl von Streifen einen Strang zu formen und die Prägevorrichtung zwischen der Bereitstellungsvorrichtung und der Strangformungsvorrichtung angeordnet und dazu eingerichtet ist, in die Flachbahn oder eine Mehrzahl der Strei- fen eine Prägung einzubringen. Ferner betrifft die Erfindung ein Verfahren zum Herstellen eines Strangs der Tabak verarbeitenden Industrie, die fol genden Schritte umfassend: Bereitstellen einer Flachbahn mit einer Be reitstellungsvorrichtung und Zuführen der Flachbahn zu einer stromab- wärts der Bereitstellungsvorrichtung angeordneten Trennvorrichtung, Auf trennen der Flachbahn in eine Vielzahl von Streifen mit der Trennvorrich tung, Formen eines Strangs aus der Vielzahl von Streifen mit einer Strangformungsvorrichtung, Prägen der Flachbahn oder einer Mehrzahl der Streifen. The strand-forming device is set up to form a strand from the plurality of strips and the embossing device is arranged between the supply device and the strand-forming device and is set up to introduce an embossing into the flat web or a plurality of the strips. The invention also relates to a method for producing a strand of the tobacco processing industry, comprising the fol lowing steps: providing a flat web with a provision device and feeding the flat web to a downstream downstream of the preparation device, separating the flat web into a plurality of strips with the separating device, forming a strand from the plurality of strips with a strand forming device, embossing the flat web or a plurality of the strips.

Eine Vorrichtung zum Herstellen eines Strangs der Tabak verarbeitenden Industrie, welche eine Trennvorrichtung umfasst, mit der eine Flachbahn in eine Vielzahl einzelner Streifen aufgetrennt wird, geht beispielsweise aus DE 1 954 036 A1 hervor. Die Flachbahn wird mithilfe einer Scheiben messerschneidvorrichtung in parallele Streifen zerschnitten. Die Streifen werden anschließend in einem Strang zusammengefasst und mit einer Umhüllung umgeben. In dieser bekannten Vorrichtung wird eine Flach bahn aus rekonstituiertem Tabakmaterial verarbeitet. Der hergestellte und umhüllte Strang wird anschließend in Segmente vorbestimmter Länge ge schnitten, so dass stabförmige Artikel der Tabak verarbeitenden Industrie hergestellt werden können. Eine weitere Vorrichtung zum Herstellen eines Strangs aus rekonstituiertem Tabakmaterial ist aus DE 10 2018 106 826 bekannt. Diese Vorrichtung umfasst eine Trennvorrichtung, die dazu ein- gerichtet ist, eine Flachbahn aus rekonstituiertem Tabakmaterial in eineA device for producing a strand in the tobacco processing industry, which comprises a separating device with which a flat web is separated into a plurality of individual strips, emerges from DE 1 954 036 A1, for example. The flat web is cut into parallel strips with the help of a disk knife cutting device. The strips are then combined in a strand and wrapped around them. In this known device, a flat sheet of reconstituted tobacco material is processed. The produced and wrapped strand is then cut into segments of a predetermined length, so that rod-shaped articles for the tobacco processing industry can be produced. Another device for producing a strand from reconstituted tobacco material is known from DE 10 2018 106 826. This device comprises a separating device which is set up to convert a flat web of reconstituted tobacco material into a

Vielzahl von Streifen aufzutrennen, indem mit einer Trennvorrichtung un mittelbar benachbarte Streifen entlang einer vorbestimmten Trennlinie im Wirkbereich voneinander getrennt werden, indem die Flachbahn quer zu der Trennlinie so stark gedehnt wird, dass sie entlang der Trennlinie aus- einanderreißt. To separate a large number of strips by separating directly adjacent strips along a predetermined separating line in the effective area with a separating device, in that the flat web is stretched transversely to the separating line so much that it tears apart along the separating line.

Bei der Herstellung von Tabakstöcken aus Streifen, die aus rekonstituier tem Tabakmaterial geschnitten oder aufgetrennt werden, werden die Streifen in einem Format zu Tabakstöcken geformt und anschließend mit- tels Kombiniermaschinen aneinandergelegt und umwickelt. Die Qualität des Ausgangsmaterials, also der Folie aus rekonstituiertem Tabakmate rial (auch als „Recon-Folie“ bekannt), schwankt jedoch. Hieraus ergeben sich Schwankungen der mechanischen Härte und des Zugwiderstands der hergestellten Tabakstöcke. Da es sich bei diesen beiden Parametern um wichtige Qualitätsparameter handelt, ist es wünschenswert, diese wäh rend der Produktion zu beeinflussen, im Idealfall zu kontrollieren. So kann unnötiger Ausschuss oder gar ein Produktionsstopp vermieden werden. In the production of tobacco sticks from strips that are cut or separated from reconstituted tobacco material, the strips are shaped into tobacco sticks in a format and then put together and wrapped by means of combining machines. However, the quality of the raw material, i.e. the film made from reconstituted tobacco material (also known as “recon film”), fluctuates. This results in fluctuations in the mechanical hardness and the tensile resistance of the manufactured tobacco sticks. Since these two parameters are If important quality parameters are involved, it is desirable to influence them during production, ideally to control them. In this way, unnecessary rejects or even a production stop can be avoided.

Es ist eine Aufgabe der Erfindung, eine Vorrichtung zum Herstellen eines Strangs der Tabak verarbeitenden Industrie sowie ein Verfahren zum Her stellen eines Strangs der Tabak verarbeitenden Industrie anzugeben, wo bei eine Qualität des mit dieser Vorrichtung oder diesem Verfahren herge stellten Strangs der Tabak verarbeitenden Industrie besser kontrollierbar sein soll. It is an object of the invention to provide a device for producing a strand of the tobacco processing industry and a method for Her provide a strand of the tobacco processing industry, where in a quality of the tobacco-processing industry made with this device or this method is better should be controllable.

Die Aufgabe wird gelöst durch eine Vorrichtung zum Herstellen eines Strangs der Tabak verarbeitenden Industrie, umfassend eine Bereitstel lungsvorrichtung, eine Trennvorrichtung, eine Strangformungsvorrichtung und eine Prägevorrichtung, wobei The object is achieved by a device for producing a strand of the tobacco processing industry, comprising a provision device, a separating device, a strand forming device and an embossing device, wherein

• die Bereitstellungsvorrichtung dazu eingerichtet ist, eine Flachbahn bereitzustellen und der stromabwärts der Bereitstellungsvorrichtung angeordneten Trennvorrichtung zuzuführen, • the provision device is set up to provide a flat track and to feed it to the separating device arranged downstream of the provision device,

• die Trennvorrichtung dazu eingerichtet ist, die Flachbahn in eine Viel zahl von Streifen aufzutrennen, • the separating device is set up to split the flat web into a large number of strips,

• die stromabwärts der Trennvorrichtung angeordnete Strangformungs vorrichtung dazu eingerichtet ist, aus der Vielzahl von Streifen einen Strang zu formen und The strand-forming device arranged downstream of the cutting device is set up to form a strand from the plurality of strips and

• die Prägevorrichtung zwischen der Bereitstellungsvorrichtung und der Strangformungsvorrichtung angeordnet und dazu eingerichtet ist, in die Flachbahn oder eine Mehrzahl der Streifen eine Prägung einzu bringen, wobei diese Vorrichtung dadurch fortgebildet ist, dass die Prägevorrich tung eine Verstellvorrichtung umfasst, mit der eine Höhe der Prägung ver änderbar ist und zumindest eine Sensoreinheit und eine mit dieser gekop pelte Steuereinheit umfasst sind, wobei die zumindest eine Sensoreinheit dazu eingerichtet ist, zumindest einen physikalischen Parameter der Flachbahn und/oder des Strangs und/oder der aus dem Strang hergesteil- ten stabförmigen Artikel zu messen und die Steuereinheit dazu eingerich tet ist, eine Höhe der Prägung mit der Verstellvorrichtung in Abhängigkeit des gemessenen physikalischen Parameters zu steuern und/oder zu re geln. • the embossing device is arranged between the supply device and the strand-forming device and is set up to bring an embossing into the flat web or a plurality of the strips, this device being developed in that the embossing device comprises an adjusting device with which a height of the embossing ver can be changed and at least one sensor unit and a control unit coupled to it are included, the at least one sensor unit being set up to measure at least one physical parameter of the flat web and / or the strand and / or the one produced from the strand. th rod-shaped article and the control unit is set up to control and / or regulate a height of the embossing with the adjusting device as a function of the measured physical parameter.

Die in die Flachbahn oder in die Mehrzahl der Streifen eingebrachte Prä gung ist eine Texturierung des Materials. Es werden Erhebungen und/ oder Vertiefungen in das Material eingebracht, welche ihrer Form nach beliebig sind. Es können als Form der Prägung beispielsweise Punkte, Kreise, Ellipsen, Rändel, Kreuze, Polygone sowie Kombinationen dieser Formen oder auch ungleichmäßige Formen eingebracht werden. Indem in die Folie oder die Streifen eine dreidimensionale Form eingeprägt wird, erhalten die in dem Strang vorliegenden Streifen eine höhere Füllkraft. Die Füllkraft der geprägten Streifen ist also im Vergleich zu nicht gepräg ten Streifen höher. Wird die Flachbahn geprägt, bleibt diese Texturierung der Flachbahn beim Auftrennen derselben in der Trennvorrichtung erhal ten, d.h. auch die hergestellten Streifen sind geprägt bzw. texturiert. The embossing made in the flat web or in the majority of the strips is a texturing of the material. Elevations and / or depressions are made in the material, which are of any shape. For example, points, circles, ellipses, knurls, crosses, polygons and combinations of these shapes or even non-uniform shapes can be introduced as the shape of the embossing. By embossing a three-dimensional shape into the film or the strips, the strips present in the strand have a higher filling power. The filling power of the embossed strips is therefore higher compared to non-embossed strips. If the flat web is embossed, this texturing of the flat web is retained when it is separated in the cutting device, i.e. the strips produced are also embossed or textured.

Es hat sich außerdem herausgestellt, dass ungeprägte Streifen innerhalb des Strangs teilweise dazu tendieren, stapelförmige Anordnungen (im Folgenden kurz als „Stapel“ bezeichnet) zu bilden. Die Streifen liegen also, betrachtet in einem Querschnitt des Strangs, in einem Stapel über einander, ihre Flachseiten berühren sich zumindest abschnittsweise na hezu vollflächig. Solche Stapel innerhalb des Strangs führen dazu, dass im hergestellten stabförmigen Artikel der Tabak verarbeitenden Industrie, nicht die volle Oberfläche der Streifen nutzbar ist. Die inneren Oberflä chen der Streifen, welche in den Stapeln direkt aufeinanderliegen, sind beispielsweise einem Luftstrom nicht zugänglich. Diese Oberflächen kön nen daher Aroma- und Wirkstoffe nur in sehr geringem Umfang an den Luftstrom abgeben. Außerdem haben die Stapel einen unerwünschten Einfluss auf den Zugwiderstand. Bei gleichbleibender Masse innerhalb des stabförmigen Artikels ist der Zugwiderstand in einem Artikel mit einer großen Anzahl von Stapeln geringer als in einem Artikel ohne Stapel. Die Prägung der Flachbahn verhindert vorteilhaft, dass die Streifen im Strang Stapel bilden, also zumindest abschnittsweise vollflächig aneinan der liegen. Die oben skizzierten technischen Nachteile können verringert oder vollständig vermieden werden. It has also been found that unembossed strips within the strand partially tend to form stack-shaped arrangements (hereinafter referred to as “stacks” for short). The strips are therefore, viewed in a cross section of the strand, in a stack on top of one another, their flat sides almost completely touching each other, at least in sections. Such stacks within the strand mean that in the rod-shaped article produced by the tobacco processing industry, not the full surface of the strips can be used. The inner surfaces of the strips, which lie directly on top of one another in the stacks, are not accessible to an air flow, for example. These surfaces can therefore only release a very small amount of aroma and active substances into the air flow. In addition, the stacks have an undesirable influence on the tensile resistance. With the same mass within the rod-shaped article, the tensile resistance in an article with a large number of stacks is lower than in an article without a stack. The embossing of the flat web advantageously prevents the strips from forming stacks in the strand, that is to say lying against one another over their entire surface at least in sections. The technical disadvantages outlined above can be reduced or completely avoided.

Die Prägung der Streifen hat ferner den Vorteil, dass die Streifen sich un tereinander, bedingt durch die einzelnen Erhebungen und Vertiefungen der Prägung, ineinander verhaken. So wird die Wahrscheinlichkeit verrin gert, dass einzelne Streifen am Kopfende aus dem stabförmigen Artikel herausfallen oder bei Gebrauch des stabförmigen Artikels herausgezogen werden. Die einzelnen Streifen sind also positionsstabiler und es findet eine geringere Faserverschiebung statt. Dies hat nicht nur Vorteile im Hinblick auf das Endprodukt, sondern auch auf die Handhabung der stab förmigen Artikel. Da die stabförmigen Artikel im Produktionsprozess viel fach mit Druckluft gefördert werden, ist eine verbesserte Positionsstabili tät der einzelnen Streifen im Hinblick auf die erreichbare Qualität der ein zelnen stabförmigen Artikel vorteilhaft. Mit anderen Worten wird die Wahrscheinlichkeit verringert, dass einzelne Streifen bedingt durch die Behandlung im Produktionsprozess am Kopfbereich des stabförmigen Ar tikels aus dessen Stirnseite hervorstehen. The embossing of the strips also has the advantage that the strips hook into each other due to the individual elevations and depressions of the embossing. This reduces the probability that individual strips at the head end fall out of the rod-shaped article or are pulled out when the rod-shaped article is in use. The individual strips are therefore more stable in position and there is less fiber displacement. This has advantages not only in terms of the end product, but also in terms of handling the rod-shaped article. Since the rod-shaped articles are often promoted with compressed air in the production process, improved Positionsstabili ity of the individual strips with regard to the achievable quality of the individual rod-shaped articles is advantageous. In other words, the probability is reduced that individual strips, due to the treatment in the production process, will protrude from the front side of the head area of the rod-shaped article.

Es konnte herausgefunden werden, dass die Positionsstabilität der ge prägten Streifen um bis zu 40 % verbessert ist. In einem Versuch, bei dem mit einem Stößel die Streifen aus dem stabförmigen Artikel heraus gedrückt werden, konnte ein um bis zu 40 % verbesserter Maximalwert zur Überwindung der Haftreibung bei geprägten Streifen im Vergleich zu Streifen ohne Prägung gefunden werden. Bei gleichem Gewicht konnten durch die Prägung außerdem die mechanische Härte und der Zugwider stand erhöht werden. It was found that the positional stability of the embossed strips is improved by up to 40%. In an experiment in which the strips are pressed out of the rod-shaped article with a plunger, a maximum value for overcoming the static friction was found with embossed strips compared to strips without embossing, which is up to 40% better. With the same weight, the embossing also increased the mechanical hardness and tensile resistance.

Bei der Flachbahn kann es sich um rekonstituiertes Tabakmaterial (Recon-Folie) handeln. Diese kann nach dem Slurry-Verfahren oder nach dem Papierverfahren hergestellt sein. Bei der Flachbahn kann es sich ebenso um eine Folie handeln, beispielsweise eine PLA-Folie. Ebenso kann die Flachbahn aus Papier oder Pappe sein. Während aus Recon-Fo- lie beispielsweise stabförmige HNB-Artikel (HNB steht für heat not burn) hergestellt werden, können aus Folie, Papier oder Pappe Kühlelemente, Abstandselemente oder Filterelemente für oder als stabförmige Artikel der Tabak verarbeitenden Industrie hergestellt werden. The flat web can be reconstituted tobacco material (Recon film). This can be produced by the slurry process or by the paper process. The flat web can also be a film, for example a PLA film. as well the flat sheet can be made of paper or cardboard. While rod-shaped HNB articles (HNB stands for heat not burn), for example, can be produced from Recon-Foil, cooling elements, spacer elements or filter elements for or as rod-shaped articles for the tobacco processing industry can be produced from film, paper or cardboard.

Die Prägevorrichtung umfasst eine Verstellvorrichtung, mit der eine Höhe der Prägung veränderbar ist. Eine Höhe der Prägung ist ein maximaler Abstand einer Erhebung oder einer Vertiefung von einer Ebene, in der sich das umgebende Material der Flachbahn oder des Streifens erstreckt. Es wird lediglich der Betrag dieses Abstands betrachtet, also in Bezug auf ihre Höhe nicht zwischen Erhebung und Vertiefung unterschieden. Eine Veränderung der Höhe erlaubt vorteilhaft eine Variation der dreidimensio nalen Form der Streifen. Die dreidimensionale Form ist also stärker (große Höhe) oder schwächer (geringe Höhe) ausgeprägt. Eine Prägung mit großer Höhe, bei der die einzelnen Erhebungen und Vertiefungen um eine vergleichsweise große Distanz aus der Ebene der Flachbahn bzw. aus der Ebene der Streifen hervorstehen, bewirkt eine Erhöhung der Füll kraft der Streifen. The embossing device comprises an adjusting device with which a height of the embossing can be changed. A height of the embossing is a maximum distance between an elevation or a depression from a plane in which the surrounding material of the flat web or of the strip extends. Only the amount of this distance is considered, i.e. no distinction is made between elevation and depression in terms of its height. Changing the height advantageously allows the three-dimensional shape of the strips to be varied. The three-dimensional shape is therefore more pronounced (high height) or less pronounced (low height). An embossing with a great height, in which the individual elevations and depressions protrude by a comparatively large distance from the plane of the flat web or from the plane of the strips, causes an increase in the filling force of the strips.

Gemäß einer Ausführungsform ist die Vorrichtung dadurch fortgebildet, dass die Verstellvorrichtung dazu eingerichtet ist, einen von der Präge vorrichtung, insbesondere von zumindest einer Prägewalze, auf die Flachbahn oder die Mehrzahl der Streifen aufgebrachten Druck zu verän dern. Die Veränderung des von der oder den Prägewalze(n) auf die Flachbahn oder die Mehrzahl der Streifen aufgebrachten Drucks, bietet eine einfache Regelgröße, mit der die Höhe der Prägung und somit bei spielsweise die Füllkraft der Streifen verändert werden kann. According to one embodiment, the device is developed in that the adjusting device is set up to change a pressure applied by the embossing device, in particular by at least one embossing roller, to the flat web or the plurality of strips. The change in the pressure applied by the embossing roller (s) to the flat web or the majority of the strips provides a simple control variable with which the height of the embossing and thus, for example, the filling force of the strips can be changed.

Die Vorrichtung umfasst zumindest eine Sensoreinheit und eine mit dieser gekoppelten Steuereinheit. Die zumindest eine Sensoreinheit ist dazu ein gerichtet, zumindest einen physikalischen Parameter der Flachbahn und/oder des Strangs und/oder der aus dem Strang hergestellten stabför migen Artikel zu messen. Die Steuereinheit ist dazu eingerichtet, eine Höhe der Prägung mit der Verstellvorrichtung in Abhängigkeit des gemes senen physikalischen Parameters zu steuern und/oder zu regeln. The device comprises at least one sensor unit and a control unit coupled to it. The at least one sensor unit is set up to measure at least one physical parameter of the flat web and / or the strand and / or the rod-shaped article produced from the strand. The control unit is set up to provide a To control and / or regulate the height of the embossing with the adjusting device as a function of the measured physical parameter.

Die Vorrichtung umfasst zumindest eine Sensoreinheit, welche dazu ein gerichtet ist, zumindest einen physikalischen Parameter der Flachbahn des Strangs oder der hergestellten stabförmigen Artikel zu messen. Selbstverständlich können auch mehrere Sensoreinheiten vorgesehen sein, so dass jeweils zumindest ein physikalischer Parameter an einem Punkt, beispielsweise an der Flachbahn, oder derselbe Parameter, bei spielsweise der Zugwiderstand, an mehreren Punkten des Produktions prozesses, also beispielsweise am Strang und zusätzlich an den stabför migen Artikeln, gemessen werden kann. Selbstverständlich sind auch be liebige Kombinationen dieser Messungen möglich. The device comprises at least one sensor unit which is designed to measure at least one physical parameter of the flat web of the strand or of the rod-shaped articles produced. Of course, several sensor units can also be provided so that in each case at least one physical parameter at one point, for example on the flat track, or the same parameter, for example the tensile resistance, at several points in the production process, for example on the strand and additionally on the rod-shaped Articles that can be measured. Any combination of these measurements is of course also possible.

Die Vorrichtung gemäß dieser Ausführungsform erlaubt eine umfassende Prozesskontrolle. The device according to this embodiment allows a comprehensive process control.

Gemäß einer weiteren vorteilhaften Ausführungsform ist die Vorrichtung dadurch fortgebildet, dass die Sensoreinheit eine Dickenmessvorrichtung ist, die dazu eingerichtet ist, eine Materialstärke der Flachbahn als physi kalischen Parameter der Flachbahn zu messen. Alternativ ist die Vorrich tung gemäß einer weiteren Ausführungsform dadurch fortgebildet, dass die Sensoreinheit dazu eingerichtet ist, eine mechanische Härte und/oder einen Zugwiderstand des Strangs und/oder der stabförmigen Artikel als physikalischen Parameter zu messen. According to a further advantageous embodiment, the device is developed in that the sensor unit is a thickness measuring device which is set up to measure a material thickness of the flat web as a physical parameter of the flat web. Alternatively, the device is developed according to a further embodiment in that the sensor unit is set up to measure a mechanical hardness and / or a tensile resistance of the strand and / or the rod-shaped article as physical parameters.

Die Dickenmessvorrichtung ist insbesondere eine berührungslos arbei tende Dickenmessvorrichtung. Beispielsweise erfolgt die Messung der Materialstärke mit einem Lichtsystem oder einem Ultraschallsystem. The thickness measuring device is in particular a non-contact thickness measuring device. For example, the material thickness is measured with a light system or an ultrasound system.

Soll der Zugwiderstand an einem einzelnen stabförmigen Artikel gemes sen werden, so ist gemäß einer weiteren Ausführungsform die Strangfor mungsvorrichtung ferner dazu eingerichtet, den hergestellten Strang in einzelne stabförmige Artikel abzulängen, und die Sensoreinheit ist dazu eingerichtet, eine Einzelprüfung an den abgelängten stabförmigen Arti keln vorzunehmen. If the tensile resistance is to be measured on a single rod-shaped article, according to a further embodiment, the strand-forming device is also set up to cut the produced strand to length into individual rod-shaped articles, and the sensor unit is for this purpose set up to carry out an individual test on the cut-to-length rod-shaped articles.

Bei der Messung einer Materialstärke der Flachbahn kann festgestellt werden, ob deren Qualität schwankt. Dies ist in vielen Fällen der Fall. Durch entsprechende Beeinflussung der Prägung können diese Schwan kungen der Materialstärke der Flachbahn ausgeglichen werden. Je dün ner die Flachbahn, also je geringer die Materialstärke, desto stärker wird die Prägung ausfallen, also umso höher ist die Höhe der einzelnen Erhe bungen und/oder Vertiefungen. When measuring a material thickness of the flat web it can be determined whether its quality fluctuates. This is the case in many cases. By influencing the embossing accordingly, these fluctuations in the material thickness of the flat web can be compensated for. The thinner the flat sheet, i.e. the lower the material thickness, the stronger the embossing will be, i.e. the higher the height of the individual elevations and / or depressions.

Die Stärke der Prägung kann als ein Steuer- und/oder Regelparameter in der Vorrichtung vorliegen, so dass ein sehr konstanter Prozess gefahren werden kann. Die Steuerung der Intensität der Prägung, gemäß einem Ausführungsbeispiel, der mittels der Prägewalzen auf die Flachbahn oder die Mehrzahl der Streifen aufgebrachte Druck, kann so gesteuert und/ oder geregelt werden, wie es beispielsweise in der EP 0242 824 B1 be schrieben ist. Dort wird die Höhe einer Trimmerscheibe mithilfe eines Stellmotors verändert, um die mechanischen Eigenschaften der herge stellten Zigaretten konstant zu halten. Anstatt der durch den Stellmotor eingestellten Höhe der Trimmerscheibe kann beispielsweise der Druck der Prägewalzen in einer erfindungsgemäß realisierten Steuerung oder Regelung eingesetzt werden. Sensoreinheiten zur Bestimmung der me chanischen Härte und/oder des Zugwiderstands des Strangs sind bei spielsweise aus der EP 0284640 B1 bekannt. The strength of the embossing can be present as a control and / or regulating parameter in the device, so that a very constant process can be carried out. The control of the intensity of the embossing, according to one embodiment, the pressure applied by means of the embossing rollers to the flat web or the plurality of strips, can be controlled and / or regulated as it is described, for example, in EP 0242 824 B1. There, the height of a trimmer disc is changed with the help of a servomotor in order to keep the mechanical properties of the cigarettes produced constant. Instead of the height of the trimmer disk set by the servomotor, for example the pressure of the embossing rollers can be used in a control or regulation implemented according to the invention. Sensor units for determining the mechanical hardness and / or the tensile resistance of the strand are known for example from EP 0284640 B1.

Gemäß einer weiteren vorteilhaften Ausführungsform wird die Prägung in termittierend durchgeführt. Dies bedeutet mit anderen Worten, dass die Prägevorrichtung dazu eingerichtet ist, in die Flachbahn oder die Mehr zahl der Streifen eine intermittierende Prägung einzubringen. Dies bedeu tet, dass die Flachbahn oder die Mehrzahl der Streifen abschnittsweise mit einer Prägung versehen wird. Die Flachbahn liegt bereichsweise im einem nicht geprägten Zustand vor, in einem sich anschließenden Ab schnitt liegt sie wiederum in geprägtem Zustand vor. Diese geprägten und nicht geprägten Bereiche wechseln sich ab, bevorzugt wechseln sie sich regelmäßig ab. According to a further advantageous embodiment, the embossing is carried out in a termitting manner. In other words, this means that the embossing device is set up to introduce an intermittent embossing into the flat web or the plurality of strips. This means that the flat web or the majority of the strips are embossed in sections. The flat web is partially in a non-embossed state, in a subsequent section it is in turn in an embossed state. These embossed and Non-embossed areas alternate, preferably they alternate regularly.

Es ist ferner insbesondere vorgesehen, dass die Positionen der gepräg- ten und nicht geprägten Bereiche auf die Position der Streifen im herge stellten stabförmigen Artikel abgestimmt sind. Auch hier kann eine ent sprechende Lageregelung vorgenommen werden oder vorgesehen sein. So ist es vorteilhaft möglich, stabförmige Artikel bereitzustellen, welche in bestimmten Bereichen geprägte Streifen umfassen und in anderen Berei- chen nicht geprägte Streifen umfassen. Beispielsweise können im Bereich eines Kopfendes die Streifen nicht geprägt vorliegen, so dass in diesem Bereich ein Heizdorn, ein Heizschild oder dergleichen leicht eingescho ben werden kann. Bei einem solchen stabförmigen Artikel handelt es sich beispielsweise um einen HNB-Artikel. It is also provided in particular that the positions of the embossed and non-embossed areas are matched to the position of the strips in the rod-shaped article produced. Here, too, a corresponding position control can be carried out or provided. It is thus advantageously possible to provide rod-shaped articles which comprise embossed strips in certain areas and comprise non-embossed strips in other areas. For example, the strips can not be embossed in the area of a head end, so that a heating mandrel, a heating shield or the like can easily be inserted in this area. Such a rod-shaped article is, for example, an HNB article.

Die Prägung kann ferner entlang einer Längsrichtung der Flachbahn vari ieren. Dies bedeutet, dass die Prägung in einigen Bereichen schwächer sein kann als in anderen. Auch hier können sich schwach geprägte und stärker geprägte Bereiche abwechseln, insbesondere regelmäßig ab- wechseln, so wie zuvor im Hinblick auf die nicht geprägten und geprägtenThe embossing can also vary along a longitudinal direction of the flat web. This means that the embossing may be weaker in some areas than in others. Here, too, weakly embossed and more strongly embossed areas can alternate, in particular alternate regularly, as before with regard to the non-embossed and embossed areas

Bereiche beschrieben. Es ergeben sich ähnliche Vorteile. Areas described. There are similar advantages.

Die Prägung kann ebenfalls kontinuierlich veränderlich sein und beispiels weise einer periodischen Funktion folgen. Mit anderen Worten variiert also eine Höhe der Prägung periodisch entlang der Längserstreckungs richtung der Streifen. So können stabförmige Artikel bereitgestellt wer den, welche Streifen umfassen, deren Prägung beispielsweise vom Kopf ende in Richtung eines Mundstückes zunimmt. Selbstverständlich kann auch ein umgekehrter Verlauf der Stärke der Prägung vorgesehen sein. The imprint can also be continuously variable and, for example, follow a periodic function. In other words, a height of the embossing varies periodically along the direction of the longitudinal extension of the strips. Thus, rod-shaped articles can be provided which comprise strips whose embossing increases, for example, from the head end in the direction of a mouthpiece. Of course, a reverse course of the thickness of the embossing can also be provided.

Gemäß einer weiteren vorteilhaften Ausführungsform ist die Vorrichtung dadurch fortgebildet, dass die Prägevorrichtung zwischen der Bereitstel lungsvorrichtung und der Trennvorrichtung angeordnet und dazu einge richtet ist, die Prägung in die Flachbahn einzubringen. Gemäß einer vorteilhaften Weiterbildung ist vorgesehen, dass die Bereit stellungsvorrichtung ein Zugwalzenpaar umfasst, welches dazu eingerich tet ist, die Flachbahn von einer Bobine der Bereitstellungsvorrichtung ab zuziehen, und die Prägevorrichtung zwischen dem Zugwalzenpaar und der Trennvorrichtung angeordnet ist. According to a further advantageous embodiment, the device is developed in that the embossing device is arranged between the preparation device and the separating device and is designed to introduce the embossing into the flat web. According to an advantageous development it is provided that the supply device comprises a pair of draw rollers, which is set up to pull the flat web from a reel of the supply device, and the embossing device is arranged between the pair of draw rollers and the separating device.

Die Aufgabe wird ferner gelöst durch ein Verfahren zum Herstellen eines Strangs der Tabak verarbeitenden Industrie, die folgenden Schritte um fassend: The object is also achieved by a method for producing a strand of the tobacco processing industry, comprising the following steps:

• Bereitstellen einer Flachbahn mit einer Bereitstellungsvorrichtung und Zuführen der Flachbahn zu einer stromabwärts der Bereitstellungs vorrichtung angeordneten Trennvorrichtung, • Providing a flat web with a supply device and feeding the flat web to a separating device arranged downstream of the supply device,

• Auftrennen der Flachbahn in eine Vielzahl von Streifen mit der Trenn vorrichtung, • Cutting the flat sheet into a multitude of strips with the cutting device,

• Formen eines Strangs aus der Vielzahl von Streifen mit einer Strang formungsvorrichtung, • Forming a strand from the multitude of strips with a strand forming device,

• Prägen der Flachbahn oder einer Mehrzahl der Streifen, wobei dieses Verfahren dadurch fortgebildet ist, dass die Prägevorrich tung mit einer Verstellvorrichtung in der Weise verstellt wird, dass sich eine Höhe der Prägungen verändert, wobei mit einer Sensoreinheit und mit einer mit dieser gekoppelten Steuereinheit ein physikalischer Parame ter der Flachbahn und/oder des Strangs und/oder der aus dem Strang hergestellten stabförmigen Artikel gemessen wird und mit der Verstellvor richtung in Abhängigkeit des gemessenen physikalischen Parameters eine Höhe der Prägung gesteuert und/oder geregelt wird. Embossing the flat web or a plurality of the strips, this method being developed in that the embossing device is adjusted with an adjusting device in such a way that a height of the embossing changes, with a sensor unit and a control unit coupled to it physical parame ter of the flat web and / or the strand and / or the rod-shaped article produced from the strand is measured and a height of the embossing is controlled and / or regulated with the adjustment device depending on the measured physical parameter.

Auf das Verfahren zum Herstellen des Strangs der Tabak verarbeitenden Industrie treffen gleiche oder ähnliche Vorteile zu, wie sie bereits im Hin blick auf die Vorrichtung erwähnt wurden. Das Verfahren bietet gegen über herkömmlichen Verfahren einen zusätzlichen Steuer- und/oder Re gelparameter, nämlich die Intensität der Prägung. Dies erlaubt es vorteil haft, einen konstanten Prozess zu fahren bzw. Variationen des Ausgangs materials durch aktive Nachregelung des Parameters auszugleichen. Gemäß einer weiteren vorteilhaften Ausführungsform ist das Verfahren dadurch fortgebildet, dass mit der Verstellvorrichtung ein von der Präge vorrichtung, insbesondere von zumindest einer Prägewalze, auf die Flachbahn oder die Mehrzahl der Streifen aufgebrachter Druck verändert wird. The same or similar advantages apply to the method for producing the strand of the tobacco processing industry, as were already mentioned in the context of the device. Compared to conventional methods, the method offers an additional control and / or control parameter, namely the intensity of the embossing. This advantageously makes it possible to run a constant process or to compensate for variations in the starting material through active readjustment of the parameter. According to a further advantageous embodiment, the method is developed in that a pressure applied by the embossing device, in particular by at least one embossing roller, to the flat web or the plurality of strips is changed with the adjusting device.

Gemäß einer weiteren Ausführungsform ist vorgesehen, dass mit der Sensoreinheit eine Materialstärke der Flachbahn als physikalischer Para meter gemessen wird. According to a further embodiment it is provided that a material thickness of the flat web is measured as a physical parameter with the sensor unit.

Gemäß einer weiteren vorteilhaften Ausführungsform ist vorgesehen, dass mit der Sensoreinheit eine mechanische Härte und/oder ein Zugwi derstand des Strangs und/oder der stabförmigen Artikel als physikalischer Parameter gemessen wird. According to a further advantageous embodiment it is provided that a mechanical hardness and / or a tensile resistance of the strand and / or the rod-shaped article is measured as a physical parameter with the sensor unit.

Soll der physikalische Parameter an dem stabförmigen Artikel gemessen werden, so werden mit der Strangformungsvorrichtung aus dem herge stellten Strang einzelne stabförmige Artikel abgelängt. Mit der Sensorein heit werden einzelne stabförmige Artikel, beispielsweise im Hinblick auf mechanische Härte und/oder Zugwiderstand gemessen. If the physical parameter is to be measured on the rod-shaped article, individual rod-shaped articles are cut to length with the strand-forming device from the strand produced. The sensor unit is used to measure individual rod-shaped articles, for example with regard to mechanical hardness and / or tensile resistance.

Das Verfahren ist ferner gemäß einer weiteren vorteilhaften Ausführungs form dadurch fortgebildet, dass mit der Prägevorrichtung die Flachbahn geprägt wird. According to a further advantageous embodiment, the method is further developed in that the flat web is embossed with the embossing device.

Weitere Merkmale der Erfindung werden aus der Beschreibung erfin dungsgemäßer Ausführungsformen zusammen mit den Ansprüchen und den beigefügten Zeichnungen ersichtlich. Erfindungsgemäße Ausfüh rungsformen können einzelne Merkmale oder eine Kombination mehrerer Merkmale erfüllen. Further features of the invention will become apparent from the description of embodiments according to the invention together with the claims and the accompanying drawings. Embodiments according to the invention can meet individual features or a combination of several features.

Die Erfindung wird nachstehend ohne Beschränkung des allgemeinen Er- findungsgedankens anhand von Ausführungsbeispielen unter Bezug nahme auf die Zeichnungen beschrieben, wobei bezüglich aller im Text nicht näher erläuterten erfindungsgemäßen Einzelheiten ausdrücklich auf die Zeichnungen verwiesen wird. Es zeigen: The invention is described below without restricting the general inventive concept described with reference to exemplary embodiments with reference to the drawings, reference being made expressly to the drawings with regard to all details of the invention not explained in more detail in the text. Show it:

Fig. 1 eine Vorrichtung zum Herstellen eines Strangs der Tabak verarbeitenden Industrie in schematisch vereinfachter Sei tenansicht, Fig. 2 eine Draufsicht auf eine geprägte Flachbahn und Fig. 1 shows a device for producing a strand of the tobacco processing industry in a schematically simplified Be tenansicht, Fig. 2 is a plan view of an embossed flat web and

Fig. 3 eine Querschnittsansicht eines stabförmigen Artikels der Ta bak verarbeitenden Industrie, welcher aus einer Vielzahl von nicht geprägten Streifen hergestellt ist. Fig. 3 is a cross-sectional view of a rod-shaped article of the tobacco processing industry, which is made from a plurality of non-embossed strips.

Im Rahmen der Erfindung sind Merkmale, die mit „insbesondere“ oder „vorzugsweise“ gekennzeichnet sind, als fakultative Merkmale zu verste hen. In den Zeichnungen sind jeweils gleiche oder gleichartige Elemente und/oder Teile mit denselben Bezugsziffern versehen, so dass von einer erneuten Vorstellung jeweils abgesehen wird. In the context of the invention, features that are identified with “in particular” or “preferably” are to be understood as optional features. In the drawings, the same or similar elements and / or parts are provided with the same reference numerals, so that they are not introduced again in each case.

Fig. 1 zeigt in schematischer und vereinfachter Darstellung eine Vorrich- tung 2 zum Herstellen eines Strangs 4 aus einer Flachbahn 6. Die Flach bahn 6 wird von einer Bereitstellungsvorrichtung 10 bereitgestellt und bei spielhaft von einer Bobine 8 abgerollt. Das Material der Flachbahn 6 ist beispielsweise rekonstituiertes Tabakmaterial (Recon), eine Folie, bei spielsweise PLA-Folie, Papier oder Pappe. Die Flachbahn 6 wird einer von der Vorrichtung 2 umfassten Trennvorrichtung 12 zugeführt. Die1 shows a schematic and simplified representation of a device 2 for producing a strand 4 from a flat web 6. The flat web 6 is provided by a supply device 10 and, for example, unrolled from a reel 8. The material of the flat web 6 is, for example, reconstituted tobacco material (Recon), a film, for example PLA film, paper or cardboard. The flat web 6 is fed to a separating device 12 comprised by the device 2. the

Trennvorrichtung 12 ist dazu eingerichtet, die Flachbahn 6 in eine Viel zahl von Streifen 14 aufzutrennen. Die Streifen 14 erstrecken sich in ei ner Streifenebene, die in der Darstellung von Fig. 1 senkrecht zur Papier ebene liegt. In Fig. 1 ist als Detailansicht eine schematische Draufsicht auf die Vielzahl hergestellter Streifen 14 gezeigt, wobei zur Verdeutli chung diese Ansicht um 90° aus der Papierebene herausgedreht ist. Separating device 12 is set up to separate the flat web 6 into a large number of strips 14. The strips 14 extend in egg ner strip plane, which is plane in the illustration of FIG. 1 perpendicular to the paper. In Fig. 1 is a schematic plan view as a detailed view shown on the plurality of strips 14 produced, this view being rotated 90 ° out of the plane of the paper for clarification.

Die im Wesentlichen parallel zueinander verlaufenden Streifen 14 werden beispielsweise über Transportwalzen 16 in Richtung eines EinlauftrichtersThe strips 14, which run essentially parallel to one another, are moved, for example, via transport rollers 16 in the direction of an inlet funnel

18 einer Strangformungsvorrichtung 20 gefördert. Anstatt der Transport walzen 16 kann auch eine glatte, flächige Führung, beispielsweise ein Blech oder dergleichen, vorgesehen sein, über welches die Streifen 14 gezogen und/oder geschoben werden. Es hat sich jedoch als vorteilhaft herausgestellt, wenn die aufgetrennten Streifen 14 bis zum Erreichen des18 a strand forming device 20 promoted. Instead of the transport rollers 16, a smooth, flat guide, for example a sheet metal or the like, can be provided over which the strips 14 are pulled and / or pushed. However, it has been found to be advantageous if the severed strips 14 until the

Einlauftrichters 18 der Strangformungsvorrichtung 20 nicht mehr umge lenkt werden. Die Strangformungsvorrichtung 20 ist ein Teil der Vorrich tung 2 zum Herstellen des Strangs 4. In ihr wird aus der Vielzahl der Streifen 14 der Strang 4 geformt. Die Strangbildung erfolgt beispielsweise in einem Formatkanal 22, der lediglich schematisch angedeutet ist. Nach der Strangbildung kann der Strang 4 in einzelne stabförmige Artikel 24 ei ner gewünschten Länge abgelängt werden. Infeed funnel 18 of the strand forming device 20 can no longer be deflected vice versa. The strand-forming device 20 is part of the device 2 for producing the strand 4. In it, the strand 4 is formed from the plurality of strips 14. The string formation takes place, for example, in a format channel 22, which is only indicated schematically. After the strand formation, the strand 4 can be cut to length into individual rod-shaped articles 24 of a desired length.

Die Trennvorrichtung 12 zum Auftrennen der Flachbahn 6 umfasst eine erste Walze 26 und eine mit dieser zusammenwirkenden zweite WalzeThe severing device 12 for severing the flat web 6 comprises a first roller 26 and a second roller cooperating with this

28. Die beiden Walzen 26, 28 stehen nicht in mechanischem Kontakt mit einander. Die erste Walze 26 rotiert um eine erste Rotationsache 27, die zweite Walze 28 rotiert um eine zweite Rotationsachse 29. Die Trennvor richtung 12 ist beispielsweise so ausgestaltet, wie in der DE 10 2018 106 826 A1 der Anmelderin Hauni Maschinenbau GmbH beschrieben. 28. The two rollers 26, 28 are not in mechanical contact with one another. The first roller 26 rotates about a first axis of rotation 27, the second roller 28 rotates about a second axis of rotation 29. The separating device 12 is configured, for example, as described in DE 10 2018 106 826 A1 of the applicant Hauni Maschinenbau GmbH.

Die Vorrichtung 2 umfasst ferner eine Prägevorrichtung 30, welche zwi schen der Bereitstellungsvorrichtung 10 und der Strangformungsvorrich tung 20 angeordnet ist. In dem dargestellten Ausführungsbeispiel ist die Prägevorrichtung 30 zwischen der Bereitstellungsvorrichtung 10 und derThe device 2 further comprises an embossing device 30 which is arranged between the provision device 10 and the strand forming device 20. In the illustrated embodiment, the embossing device 30 is between the supply device 10 and the

Trennvorrichtung 12 angeordnet und dazu eingerichtet, eine Prägung in die Flachbahn 6 einzubringen. Es ist ferner gemäß einem weiteren Aus führungsbeispiel vorgesehen, dass die Bereitstellungsvorrichtung 10 ein Zugwalzenpaar 32 umfasst, welches dazu eingerichtet ist, die Flachbahn 6 von der Bobine 8 der Bereitstellungsvorrichtung 10 abzuziehen. Die Prägevorrichtung ist zwischen diesem Zugwalzenpaar 32 und der Trenn vorrichtung 12 angeordnet. So muss die Prägevorrichtung 30 keine Zug kräfte auf die Flachbahn 6 ausüben. Separating device 12 is arranged and set up to introduce an embossing into the flat web 6. According to a further exemplary embodiment, provision is also made for the supply device 10 to include a pair of draw rollers 32 which is set up to produce the flat web 6 to be withdrawn from the reel 8 of the provision device 10. The embossing device is arranged between this pair of drawing rollers 32 and the separating device 12. The embossing device 30 does not have to exert any tensile forces on the flat web 6.

Die Prägevorrichtung 30 besteht beispielhaft aus einem Prägewalzen paar. Die Prägevorrichtung 30 ist gemäß einem weiteren Ausführungsbei spiel stromabwärts der Trennvorrichtung 12 angeordnet und prägt bei ei ner solchen Anordnung nicht die Flachbahn 6, sondern die mittels der Trennvorrichtung 12 aus der Flachbahn 6 hergestellten Streifen 14. Diese alternative Position der Prägevorrichtung 30 ist in Fig. 1 mit gestrichelter Linie dargestellt. Die im Folgenden im Hinblick auf die Flachbahn 6 und deren Prägung gemachten Aussagen treffen also in gleicher Weise auch auf die Streifen 14 und deren Prägung zu. The embossing device 30 consists, for example, of a pair of embossing rollers. According to a further embodiment, the embossing device 30 is arranged downstream of the separating device 12 and, in the case of such an arrangement, does not emboss the flat web 6, but rather the strips 14 produced from the flat web 6 by means of the separating device 12. This alternative position of the embossing device 30 is shown in FIG. 1 shown with a dashed line. The statements made below with regard to the flat web 6 and its embossing also apply in the same way to the strips 14 and their embossing.

Mit der Prägevorrichtung 30 wird eine Texturierung in die Flachbahn 6 eingebracht. Es werden Erhebungen und/oder Vertiefungen in das Mate rial der Flachbahn 6 eingeprägt, welche ihrer Form nach beliebig sind. With the embossing device 30, texturing is introduced into the flat web 6. Elevations and / or depressions are embossed in the mate rial of the flat web 6, which are of any shape.

Beispielhaft ist in Fig. 2 eine Draufsicht auf eine Flachbahn 6 gezeigt, welche kreisrunde und in einem regelmäßigen Raster angeordnete Vertie fungen 34, von denen aus Gründen der Übersichtlichkeit lediglich einige mit Bezugszeichen versehen sind, als Prägung umfasst. By way of example, FIG. 2 shows a top view of a flat web 6, which comprises circular recesses 34 arranged in a regular grid, of which only a few are provided with reference numerals for the sake of clarity, as embossing.

Die Prägevorrichtung 30 umfasst beispielsweise eine in Fig. 1 nicht dar gestellte Verstellvorrichtung, mit der eine Höhe der Prägung veränderbar ist. Eine solche Verstellvorrichtung ist beispielsweise dazu eingerichtet, einen von der Prägevorrichtung 30, beispielsweise von den schematisch dargestellten Prägewalzen, auf die Flachbahn 6 aufgebrachten Druck zu verändern. Bei einem höheren Druck ergeben sich Vertiefungen mit grö ßerer Tiefe, als dies bei geringerem Druck der Fall ist. Vertiefungen treten auf der Rückseite der Flachbahn als Erhöhungen auf, denen eine Höhe, also ein Abstand zum umgebenden Material, betrachtet in einer Richtung senkrecht zur Ebene, in der sich das umgebende Material erstreckt, zuge ordnet werden kann. Mit anderen Worten lässt sich also auch eine Vertie fung anhand einer Höhe der Prägung charakterisieren. The embossing device 30 comprises, for example, an adjusting device, not shown in FIG. 1, with which a height of the embossing can be changed. Such an adjusting device is set up, for example, to change a pressure applied to the flat web 6 by the embossing device 30, for example by the schematically illustrated embossing rollers. With a higher pressure, depressions with a greater depth result than is the case with lower pressure. Depressions appear on the back of the flat web as elevations, which have a height, i.e. a distance to the surrounding material, viewed in one direction perpendicular to the plane in which the surrounding material extends, assigned can be assigned. In other words, a depression can also be characterized on the basis of the height of the embossing.

Die Vorrichtung 2 umfasst ferner beispielsweise eine Dickenmessvorrich tung 36 als Sensoreinheit. Die Dickenmessvorrichtung 36 ist dazu einge richtet, eine Materialstärke der Flachbahn 6 als einen physikalischen Pa rameter der Flachbahn 6 zu messen. Die Vorrichtung 2 umfasst ferner beispielsweise eine weitere Sensoreinheit 35, die dazu eingerichtet ist, eine mechanische Härte und/oder einen Zugwiderstand des Strangs 4 zu messen. Alternativ oder zusätzlich ist eine weitere Sensoreinheit 35 vor gesehen, welche dazu eingerichtet ist, die mechanische Härte und/oder den Zugwiderstand der einzelnen stabförmigen Artikel 24 zu messen. Alle diese Sensoreinheiten 35 sind über geeignete und aus Gründen der Über sichtlichkeit nicht dargestellte Datenverbindungen mit einer Steuereinheit 38 gekoppelt. Auch die Prägevorrichtung 30 ist über eine aus Gründen der Übersichtlichkeit nicht dargestellte Datenverbindung mit der Steuer einheit 38 gekoppelt. Die Steuereinheit 38 empfängt Messwerte, bei spielsweise betreffend eine Materialstärke der Flachbahn 6, einer Härte oder eines Zugwiderstands des Strangs 4 oder der einzelnen Artikel 24 und steuert und/oder regelt in Abhängigkeit dieser Messwerte eine Höhe der von der Prägevorrichtung 30 in die Flachbahn 6 eingebrachten Prä gung. Die Regelung erfolgt beispielsweise über den von dem Prägewal zenpaar auf die Flachbahn 6 ausgeübten Druck. Auf diese Weise können Schwankungen der Dicke der Flachbahn 6 ausgeglichen werden. Bei ge ringerer Materialstärke der Flachbahn 6 wird eine intensivere Prägung vorgenommen, was dem ansonsten durch die geringere Materialstärke eintretenden Verlust an Zugwiderstand und/oder mechanischer Härte des Strangs oder der einzelnen stabförmigen Artikel 24 entgegenwirkt. The device 2 further comprises, for example, a thickness measuring device 36 as a sensor unit. The thickness measuring device 36 is set up to measure a material thickness of the flat web 6 as a physical parameter of the flat web 6. The device 2 further comprises, for example, a further sensor unit 35 which is set up to measure a mechanical hardness and / or a tensile resistance of the strand 4. As an alternative or in addition, a further sensor unit 35 is provided, which is set up to measure the mechanical hardness and / or the tensile resistance of the individual rod-shaped articles 24. All of these sensor units 35 are coupled to a control unit 38 via suitable data connections which are not shown for reasons of clarity. The embossing device 30 is also coupled to the control unit 38 via a data connection (not shown for reasons of clarity). The control unit 38 receives measured values, for example relating to a material thickness of the flat web 6, a hardness or a tensile resistance of the strand 4 or of the individual articles 24 and controls and / or regulates a level of the amount introduced into the flat web 6 by the embossing device 30 as a function of these measured values Embossing. The regulation takes place, for example, via the pressure exerted on the flat web 6 by the pair of embossing rollers. In this way, fluctuations in the thickness of the flat web 6 can be compensated for. With a lower material thickness of the flat web 6, a more intensive embossing is carried out, which counteracts the loss of tensile resistance and / or mechanical hardness of the strand or of the individual rod-shaped articles 24 that would otherwise occur due to the lower material thickness.

Die in die Flachbahn 6 eingebrachte Prägung hat außerdem noch den Vorteil, dass sich in den stabförmigen Artikeln 24 keine Stapel 40 aus ein zelnen Streifen bilden. Dies soll beispielhaft an der in Fig. 3 gezeigten vereinfachten Querschnittsansicht erläutert werden, welche einen Quer schnitt durch einen stabförmigen Artikel 24 zeigt, welcher einzelne Strei fen umfasst, welche nicht geprägt sind. Die in der gezeigten Querschnittsansicht markierten Gebiete weisen Sta pel 40 aus einzelnen Streifen auf, in denen die Flachseiten dieser Strei fen nahezu planparallel aufeinanderliegen. Im Bereich solcher Stapel 40 steht eine verringerte Oberfläche der einzelnen Streifen 14 zur Verfü gung. The embossing introduced into the flat web 6 also has the advantage that no stacks 40 of individual strips are formed in the rod-shaped articles 24. This is intended to take the example of the one shown in FIG. 3 Simplified cross-sectional view will be explained, which shows a cross-section through a rod-shaped article 24 which comprises individual strips which are not embossed. The areas marked in the cross-sectional view shown have stacks 40 of individual strips in which the flat sides of these strips lie almost plane-parallel on one another. In the area of such stacks 40, a reduced surface area of the individual strips 14 is available.

Durch die Prägung der Flachbahn 6 und somit auch der einzelnen Strei fen 14, wie sie in Fig. 2 beispielhaft gezeigt ist, kann vermieden werden, dass die Streifen 14 vollflächig aufeinanderliegen. Es bilden sich keine Stapel. The embossing of the flat web 6 and thus also of the individual strips 14, as shown by way of example in FIG. 2, can prevent the strips 14 from lying on top of one another over their entire surface. No stacks are formed.

Alle genannten Merkmale, auch die den Zeichnungen allein zu entneh menden sowie auch einzelne Merkmale, die in Kombination mit anderen Merkmalen offenbart sind, werden allein und in Kombination als erfin dungswesentlich angesehen. Erfindungsgemäße Ausführungsformen kön nen durch einzelne Merkmale oder eine Kombination mehrerer Merkmale erfüllt sein. All of the features mentioned, including those that can be taken from the drawings alone, as well as individual features that are disclosed in combination with other features, are considered to be essential to the invention alone and in combination. Embodiments according to the invention can be fulfilled by individual features or a combination of several features.

Bezuqszeichenliste Reference list

2 Vorrichtung 2 device

4 Strang 4 strand

6 Flachbahn 6 flat track

8 Bobine 8 bobbin

10 Bereitstellungsvorrichtung10 Provisioning device

12 Trennvorrichtung 12 Separator

14 Streifen 14 strips

16 Transportwalzen 16 transport rollers

18 Einlauftrichter 18 inlet funnel

20 Strangformungsvorrichtung20 strand forming device

22 Formatkanal 22 format channel

24 Artikel 24 items

26 erste Walze 26 first roll

27 erste Rotationsachse 27 first axis of rotation

28 zweite Walze 28 second roller

29 zweite Rotationsachse29 second axis of rotation

30 Prägevorrichtung 30 embossing device

32 Zugwalzenpaar 32 pair of draw rollers

34 Vertiefung 34 deepening

35 Sensoreinheit 35 sensor unit

36 Dickenmessvorrichtung36 Thickness Measuring Device

38 Steuereinheit 38 Control unit

40 Stapel 40 stacks

Claims

Vorrichtung und Verfahren zum Herstellen eines Strangs der Tabak verar beitenden Industrie Patentansprüche Apparatus and method for producing a strand of the tobacco processing industry claims 1. Vorrichtung (2) zum Herstellen eines Strangs (4) der Tabak verar beitenden Industrie, umfassend eine Bereitstellungsvorrichtung (10), eine Trennvorrichtung (12), eine Strangformungsvorrichtung (20) und eine Prägevorrichtung (30), wobei 1. Device (2) for producing a strand (4) of the tobacco processing industry, comprising a supply device (10), a separating device (12), a strand forming device (20) and an embossing device (30), wherein • die Bereitstellungsvorrichtung (10) dazu eingerichtet ist, eine Flachbahn (6) bereitzustellen und der stromabwärts der Bereit stellungsvorrichtung (10) angeordneten Trennvorrichtung (12) zuzuführen, • the provision device (10) is set up to provide a flat web (6) and to feed it to the separating device (12) arranged downstream of the provision device (10), • die Trennvorrichtung (12) dazu eingerichtet ist, die Flachbahn (6) in eine Vielzahl von Streifen (14) aufzutrennen,• the separating device (12) is set up to split the flat web (6) into a plurality of strips (14), • die stromabwärts der Trennvorrichtung (12) angeordnete Strangformungsvorrichtung (20) dazu eingerichtet ist, aus der Vielzahl von Streifen (14) einen Strang (4) zu formen und The strand-forming device (20) arranged downstream of the cutting device (12) is set up to form a strand (4) from the plurality of strips (14) and • die Prägevorrichtung (30) zwischen der Bereitstellungsvorrich tung (10) und der Strangformungsvorrichtung (20) angeordnet und dazu eingerichtet ist, in die Flachbahn (6) oder eine Mehr zahl der Streifen (14) eine Prägung einzubringen, dadurch ge- kennzeichnet, dass die Prägevorrichtung (30) eine Verstellvor richtung umfasst, mit der eine Höhe der Prägung veränderbar ist und zumindest eine Sensoreinheit (35) und eine mit dieser gekoppelte Steuereinheit (38) umfasst sind, wobei die zumin- dest eine Sensoreinheit (35) dazu eingerichtet ist, zumindest einen physikalischen Parameter der Flachbahn (6) und/oder des Strangs (4) und/oder der aus dem Strang (4) hergestellten stabförmigen Artikel (24) zu messen und die Steuereinheit (38) dazu eingerichtet ist, eine Höhe der Prägung mit der Verstell- Vorrichtung in Abhängigkeit des gemessenen physikalischen• the embossing device (30) is arranged between the supply device (10) and the strand-forming device (20) and is set up to introduce an embossing into the flat web (6) or a plurality of the strips (14), thereby indicates that the embossing device (30) comprises an adjusting device with which the height of the embossing can be changed and at least one sensor unit (35) and a control unit (38) coupled to it are included, the at least one sensor unit (35) is set up to measure at least one physical parameter of the flat web (6) and / or the strand (4) and / or the rod-shaped article (24) produced from the strand (4) and the control unit (38) is set up to provide a Height of the embossing with the adjustment device depending on the measured physical Parameters zu steuern und/oder zu regeln. To control and / or regulate parameters. 2. Vorrichtung (2) nach Anspruch 1, dadurch gekennzeichnet, dass die Verstellvorrichtung dazu eingerichtet ist, einen von der Prägevor- richtung (30), insbesondere von zumindest einer Prägewalze, auf die Flachbahn (6) oder die Mehrzahl der Streifen (14) aufgebrachten Druck zu verändern. 2. Device (2) according to claim 1, characterized in that the adjusting device is set up to apply one of the embossing device (30), in particular of at least one embossing roller, to the flat web (6) or to the plurality of strips (14). to change the applied pressure. 3. Vorrichtung (2) nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Sensoreinheit (35) eine Dickenmessvorrichtung (36) ist, die dazu eingerichtet ist, eine Materialstärke der Flachbahn (6) als phy sikalischen Parameter der Flachbahn (6) zu messen. 3. Device (2) according to claim 1 or 2, characterized in that the sensor unit (35) is a thickness measuring device (36) which is set up to assign a material thickness of the flat web (6) as a physical parameter of the flat web (6) measure up. 4. Vorrichtung (2) nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Sensoreinheit (35) dazu eingerichtet ist, eine mechanische4. Device (2) according to claim 1 or 2, characterized in that the sensor unit (35) is designed to have a mechanical Härte und/oder einen Zugwiderstand des Strangs (4) und/oder der stabförmigen Artikel (24) als physikalischen Parameter zu messen. To measure the hardness and / or a tensile resistance of the strand (4) and / or the rod-shaped article (24) as physical parameters. 5. Vorrichtung (2) nach einem der Ansprüche 1 bis 4, dadurch gekenn zeichnet, dass die Prägevorrichtung (30) zwischen der Bereitstel lungsvorrichtung (10) und der Trennvorrichtung (12) angeordnet und dazu eingerichtet ist, die Prägung in die Flachbahn (6) einzubringen. 5. Device (2) according to one of claims 1 to 4, characterized in that the embossing device (30) is arranged between the preparation device (10) and the separating device (12) and is set up to emboss the flat web (6 ). 6. Vorrichtung (2) nach Anspruch 5, dadurch gekennzeichnet, dass die Bereitstellungsvorrichtung (10) ein Zugwalzenpaar (32) umfasst, welches dazu eingerichtet ist, die Flachbahn (6) von einer Bobine (8) der Bereitstellungsvorrichtung (10) abzuziehen, und die Präge vorrichtung (30) zwischen dem Zugwalzenpaar (32) und der Trenn vorrichtung (12) angeordnet ist. 6. Device (2) according to claim 5, characterized in that the Provisioning device (10) comprises a pair of draw rollers (32) which is configured to pull the flat web (6) off a reel (8) of the supply device (10), and the embossing device (30) between the pair of drawing rollers (32) and the separator device (12) is arranged. 7. Verfahren zum Herstellen eines Strangs (4) der Tabak verarbeiten den Industrie, die folgenden Schritte umfassend: 7. A method for making a strand (4) of the tobacco processing industry, comprising the following steps: • Bereitstellen einer Flachbahn (6) mit einer Bereitstellungsvor richtung (10) und Zuführen der Flachbahn (6) zu einer stromab wärts der Bereitstellungsvorrichtung (10) angeordneten Trenn vorrichtung (12), • providing a flat web (6) with a supply device (10) and feeding the flat web (6) to a separating device (12) arranged downstream of the supply device (10), • Auftrennen der Flachbahn (6) in eine Vielzahl von Streifen (14) mit der Trennvorrichtung (12), • Separating the flat web (6) into a multitude of strips (14) with the separating device (12), • Formen eines Strangs (4) aus der Vielzahl von Streifen (14) mit einer Strangformungsvorrichtung (20), • forming a strand (4) from the plurality of strips (14) with a strand-forming device (20), • Prägen der Flachbahn (6) oder einer Mehrzahl der Streifen (14), dadurch gekennzeichnet, dass die Prägevorrichtung (30) mit einer Verstellvorrichtung in der Weise verstellt wird, dass sich eine Höhe der Prägungen verändert, wobei mit einer Sensoreinheit (35) und mit einer mit dieser gekoppelten Steuereinheit (38) ein physikalischer Parameter der Flachbahn (6) und/oder des Strangs (4) und/oder der aus dem Strang (4) hergestellten stabförmigen Artikel (24) gemes sen wird und mit der Verstellvorrichtung in Abhängigkeit des gemes senen physikalischen Parameters eine Höhe der Prägung gesteuert und/oder geregelt wird. • Embossing of the flat web (6) or a plurality of the strips (14), characterized in that the embossing device (30) is adjusted with an adjusting device in such a way that a height of the embossing changes, with a sensor unit (35) and with a control unit (38) coupled to this, a physical parameter of the flat web (6) and / or the strand (4) and / or the rod-shaped article (24) produced from the strand (4) is measured and with the adjusting device as a function of the measured physical parameter a height of the embossing is controlled and / or regulated. 8. Verfahren nach Anspruch 7, dadurch gekennzeichnet, dass mit der Verstellvorrichtung ein von der Prägevorrichtung (30), insbesondere von zumindest einer Prägewalze, auf die Flachbahn (6) oder die Mehrzahl der Streifen (14) aufgebrachter Druck verändert wird. 8. The method according to claim 7, characterized in that the adjusting device changes a pressure applied by the embossing device (30), in particular by at least one embossing roller, to the flat web (6) or the plurality of strips (14). 9. Verfahren nach Anspruch 7 oder 8, dadurch gekennzeichnet, dass mit der Sensoreinheit (35) eine Materialstärke der Flachbahn (6) als physikalischer Parameter gemessen wird. 9. The method according to claim 7 or 8, characterized in that a material thickness of the flat web (6) is measured as a physical parameter with the sensor unit (35). 10. Verfahren nach Anspruch 7 oder 8, dadurch gekennzeichnet, dass mit der Sensoreinheit (35) eine mechanische Härte und/oder ein10. The method according to claim 7 or 8, characterized in that the sensor unit (35) has a mechanical hardness and / or a Zugwiderstand des Strangs (4) und/oder der stabförmigen Artikel (24) als physikalischer Parameter gemessen wird. Tensile resistance of the strand (4) and / or the rod-shaped article (24) is measured as a physical parameter. 11. Verfahren nach einem der Ansprüche 7 bis 10, dadurch gekenn zeichnet, dass mit der Prägevorrichtung (30) die Flachbahn (6) ge prägt wird. 11. The method according to any one of claims 7 to 10, characterized in that the flat web (6) is embossed with the embossing device (30).
EP21712429.6A 2020-03-18 2021-03-10 Device and method for producing a rod of the tobacco processing industry Active EP4099851B1 (en)

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DE102020107421.2A DE102020107421A1 (en) 2020-03-18 2020-03-18 Apparatus and method for making a strand in the tobacco processing industry
PCT/EP2021/055996 WO2021185646A1 (en) 2020-03-18 2021-03-10 Device and method for producing a rod of the tobacco processing industry

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CN115209747A (en) 2022-10-18
DE102020107421A1 (en) 2021-09-23
WO2021185646A1 (en) 2021-09-23

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