Apparatus and method for manufacturing a rod for the tobacco industry

Abstract

The invention relates to a device (2) and a method for producing a tobacco industry strip (4), the device comprising a providing device (10), a separating device (12) and a strip forming device (20), wherein the providing device (10) is set up for providing a flat web (6) and delivering to the separating device (12) arranged downstream of the providing device (10), the separating device (12) is set up for separating the flat web (6) into a plurality of strips (14) and the strip forming device (20) arranged downstream of the separating device (12) is set up for forming a strip (4) from the plurality of strips (14). The device (2) is improved by an embossing device (30) arranged between the providing device (10) and the strip forming device (20) and set up for applying an indentation into the flat web (6) or the plurality of strips (14).

Description

Technical Field

[0001] This invention relates to an apparatus for manufacturing tobacco strips in the tobacco processing industry. The apparatus includes a feeding device, a separating device, a strip forming device, and an imprinting device. The feeding device is configured to feed a flat web and convey it to a separating device arranged downstream of the feeding device. The separating device is configured to separate the flat web into multiple strips. The strip forming device, arranged downstream of the separating device, is configured to form a strip from the multiple strips. The imprinting device is arranged between the feeding device and the strip forming device and is configured to apply indentations to the flat web or the multiple strips. The invention also relates to a method for manufacturing tobacco strips in the tobacco processing industry, the method comprising the steps of: feeding a flat web using the feeding device and conveying the flat web to a separating device arranged downstream of the feeding device; separating the flat web into multiple strips using the separating device; forming a strip from the multiple strips using the strip forming device; and imprinting the flat web or the multiple strips. Background Technology

[0002] DE 1 954 036 A1 discloses an apparatus for manufacturing strips for the tobacco processing industry. This apparatus includes a separating device that separates a flat web into multiple individual strips. The flat web is cut into parallel strips by means of a disc cutter. The strips are then assembled into a strip and wrapped with a wrapping portion. In this known apparatus, a flat web made of reconstituted tobacco material is processed. The resulting and wrapped strip is then cut into segments of predetermined lengths, allowing the manufacture of rod-shaped articles for the tobacco processing industry. DE 10 2018 106 826 discloses another apparatus for manufacturing strips made of reconstituted tobacco material. This apparatus includes a separating device configured to separate a flat web made of reconstituted tobacco material into multiple strips. Adjacent strips are separated from each other along a predetermined separation line in the working area by the separating device. The flat web is then strongly stretched transversely to the separation line, causing it to tear apart along the separation line.

[0003] In the manufacture of tobacco sticks made from strips, these strips are cut or separated from reconstituted tobacco material. The strips are formed into tobacco sticks of a specific size and then bonded and wrapped together using a bonding machine. However, there is fluctuation in the quality of the initial material, namely the foil (also known as "Recon foil") made from reconstituted tobacco material. This results in fluctuations in the mechanical stiffness and tensile strength (Zugwiderstand) of the finished tobacco sticks. Because these two parameters are important quality parameters, it is desirable to influence and ideally control them during production. This can avoid unnecessary waste or even production stoppages. Summary of the Invention

[0004] The objective of this invention is to provide an apparatus and a method for manufacturing tobacco strips for the tobacco processing industry, wherein the quality of the tobacco strips produced using the apparatus or method should be better controlled.

[0005] This task is solved by an apparatus for manufacturing tobacco strips, which includes a feeding device, a separating device, a strip forming device, and an imprinting device, wherein...

[0006] ● The supply device is configured to supply flat webs and convey them to a separation device located downstream of the supply device.

[0007] ● A separation device is provided to separate the flat web into multiple strips.

[0008] ● A strip forming device arranged downstream of the separation unit is configured to form strips from multiple strips and

[0009] ● The embossing device is arranged between the feeding device and the strip forming device and is configured to apply indentations to the flat web or multiple strips.

[0010] The device is improved in such a way that the embossing device includes an adjustment device that can change the height of the indentation, and the device includes at least one sensor unit and a control unit connected to the sensor unit, wherein the at least one sensor unit is configured to measure at least one physical parameter of the flat web and / or strip and / or rod-shaped article made of strip, and the control unit is configured to control and / or adjust the height of the indentation according to the measured physical parameter using the adjustment device.

[0011] Indentations applied to a flat web or multiple strips are a form of material texturing. Raises and / or depressions are applied to the material, and these are arbitrary in shape. For example, dots, circles, ellipses, knurling, crosses, polygons, and combinations of these shapes, or even non-uniform shapes, can be applied as indentation shapes. By pressing a three-dimensional shape into the foil or strip, the strip within the strip gains a higher filling capacity. That is, the filling capacity of the embossed strip is higher than that of the unembossed strip. If the flat web is embossed, then the texture of the flat web is preserved during its own separation in the separation device; that is, the resulting strip is also embossed or texturized.

[0012] Furthermore, it has been confirmed that unpressed strips tend to form a partially stacked arrangement within the strip (hereinafter referred to as "stacked portions"). That is, viewed in cross-section of the strip, the strips overlap each other in the stacked portions, with their flat sides at least segmentally and almost entirely in contact with each other. Such stacked portions within the strip result in the production of tobacco processing rods where not the entire surface of the strip is usable. The inner surfaces of the strips directly stacked within the stacked portions are inaccessible to airflow, for example. Therefore, these surfaces can only release aromatic and active substances into the airflow to a very small extent. In addition, the stacked portions have an undesirable effect on tensile strength. With a constant mass within the rod, articles with a large number of stacked portions have lower tensile strength than articles without stacked portions.

[0013] The indentation of the flat web advantageously prevents the strips in the strip from forming overlapping sections, that is, from at least sectionally or surface-by-surface contact with each other. The technical disadvantages briefly described above can be reduced or completely avoided.

[0014] The indentation of the strips also has the following advantages: the individual protrusions and indentations of the indentation cause the strips to hook together. This reduces the likelihood of individual strips falling out of the rod at the head end or being sucked out during rod use. In other words, the individual strips are more stable in position and experience less fiber displacement. This is advantageous not only in terms of the final product but also in terms of handling the rod. Because the rod is conveyed multiple times using compressed air during production, the improved positional stability of the individual strips is beneficial in terms of the quality achievable with the individual rod. In other words, it reduces the likelihood of individual strips protruding from their end sides due to handling in the head region of the rod during production.

[0015] It can be observed that the positional stability of the indented strip is improved by up to 40%. In tests where the strip is extruded from a rod using a pusher, the maximum value for overcoming static friction is improved by up to 40% when the strip is indented compared to the unindented strip. Furthermore, for the same weight, indentation can increase mechanical hardness and tensile resistance.

[0016] The flat web can be reconstituted tobacco material (Recon foil). This flat web can be manufactured using either the slurry process or the papermaking process. The flat web can also be foil, such as PLA foil. The flat web can also be made from paper or paperboard. When, for example, rod-shaped HNB articles (HNB stands for heat not burn) are manufactured using Recon foil, cooling elements, spacer elements, or filter elements used in or serving as rod-shaped articles in the tobacco processing industry can be made from foil, paper, or paperboard.

[0017] The embossing apparatus includes an adjustment device that allows for variation of the indentation height. The indentation height is the maximum distance between the protrusion or indentation and the plane of the surrounding material extending from the flat web or strip. Only the numerical value of this distance is considered; that is, no distinction is made between protrusions and indentations regarding their height. Variation in height advantageously allows for changes in the three-dimensional shape of the strip. The three-dimensional shape thus appears more pronounced (larger height) or less pronounced (smaller height). Indentations with a larger height result in increased filling capacity of the strip, in which individual protrusions and indentations protrude a relatively large distance from the plane of the flat web or from the plane of the strip.

[0018] According to one embodiment, the device is improved such that an adjustment device is provided for changing the pressure applied to the flat web or multiple strips by the impression apparatus, particularly by at least one impression roller. The change in pressure applied to the flat web or multiple strips by one or more impression rollers provides a simple adjustment amount, which can be used to change the indentation height and thus, for example, the filling capacity of the strips.

[0019] The device includes at least one sensor unit and a control unit coupled to the sensor unit. The at least one sensor unit is configured to measure at least one physical parameter of flat webs and / or strips and / or rod-shaped articles made from strips. The control unit is configured to control and / or adjust the height of the indentation based on the measured physical parameter using an adjustment device.

[0020] The device includes at least one sensor unit configured to measure at least one physical parameter of a flat web, strip, or rod-shaped article. It goes without saying that multiple sensor units can be provided, such that at least one physical parameter can be measured at a single point, for example, on the flat web, or the same parameter, such as tensile strength, can be measured at multiple points during the production process, i.e., on the strip or additionally on the rod-shaped article. It goes without saying that any combination of these measurements is also possible.

[0021] The apparatus according to this embodiment allows for comprehensive process control.

[0022] According to another advantageous embodiment, the device is improved in that the sensor unit is a thickness measuring device configured to measure the material thickness of the flat web as a physical parameter of the flat web. Alternatively, according to another embodiment, the device is improved in that the sensor unit is configured to measure the mechanical hardness and / or tensile strength of strips and / or rods as physical parameters.

[0023] Thickness measurement devices, especially non-contact thickness measurement devices. For example, using optical systems or ultrasonic systems to measure material thickness.

[0024] If it is desired to measure the tensile resistance of a single rod-shaped article, then according to another embodiment, the strip forming device is also provided for cutting the produced strip into individual rod-shaped articles, and a sensor unit is provided for performing individual inspections of the cut rod-shaped articles.

[0025] Measuring the material thickness of a flat web can confirm whether its quality fluctuates. This is true in many cases. The fluctuation in the material thickness of the flat web can be compensated for by the corresponding effect of the indentation. The thinner the flat web, that is, the smaller the material thickness, the stronger the indentation, meaning the higher the individual bumps and / or indentations.

[0026] The embossing intensity can be present in the apparatus as a control parameter and / or adjustment parameter, allowing for a very constant process. According to one embodiment, the control of embossing intensity involves applying pressure to a flat web or multiple strips via an embossing roller, as described, for example, in EP 0 242 824 B1. There, the height of the trimming disc is changed by means of a servo motor to keep the mechanical properties of the produced cigarette constant. Instead of the height of the trimming disc set by the servo motor, the pressure of the embossing roller can be used, for example, in the control or adjustment implemented according to the invention. Sensor units for determining the mechanical stiffness and / or tensile resistance of the strip are known, for example, from EP 0 284 640 B1.

[0027] According to another advantageous embodiment, the embossing is performed intermittently. In other words, this means that the embossing apparatus is configured to intermittently apply indentations to a flat web or multiple strips. This means that the flat web or multiple strips are segmentally equipped with indentations. Areas of the flat web are in an unembossed state, and in immediately following segments, the flat web is in an embossed state. These embossed and unembossed areas alternate, preferably these areas alternate regularly.

[0028] In particular, the positions of the embossed and unembossed areas are configured to align with the positions of the strips in the manufactured rod-shaped article. Appropriate posture adjustments can also be made or configured here. This allows for the advantageous provision of rod-shaped articles that include embossed strips in defined areas and unembossed strips in other areas. For example, unembossed strips can be present in the head end area, making it easy to insert a heating core, heating plate, etc., in that area. Such rod-shaped articles are, for example, HNB articles.

[0029] The indentation can also vary along the longitudinal direction of the flat fabric. This means that the indentation in some areas can be weaker than in others. Here, it is also possible to alternate, especially regularly, between weakly and strongly indented areas, as previously described regarding unindented and indented areas. Similar advantages are obtained.

[0030] The indentation can also be continuously variable and, for example, follow a periodic function. In other words, the height of the indentation thus varies periodically along the longitudinal direction of the strip. This allows for the provision of rod-shaped articles comprising strips, the indentation of which increases, for example, from the head end towards the mouth segment. Needless to say, the opposite direction of indentation intensity can also be provided.

[0031] According to another advantageous embodiment, the apparatus is improved such that the embossing device is arranged between the feeding device and the separating device and is configured to apply indentations to the flat web.

[0032] According to an advantageous improvement: the feeding device includes a pair of pull rollers configured to draw the flat web from the roll of the feeding device, and the imprinting device is arranged between the pull rollers and the separating device.

[0033] This task is also solved by a method for manufacturing tobacco strips, which includes the following steps:

[0034] ● A flat web is provided using a feeding device and then conveyed to a separation device located downstream of the feeding device.

[0035] ● A separation device is used to separate flat webs into multiple strips.

[0036] ● A strip is formed from multiple strips using a strip forming device.

[0037] ● Imprint flat webs or multiple strips.

[0038] The method is improved in such a way that the embossing device is adjusted by an adjustment device to change the height of the indentation, wherein a sensor unit and a control unit connected to the sensor unit measure the physical parameters of the flat web and / or strip and / or rod-shaped article made of strip, and the adjustment device controls and / or adjusts the height of the indentation according to the measured physical parameters.

[0039] The same or similar advantages already mentioned regarding the apparatus apply to methods for manufacturing tobacco strips. This method provides additional control and / or adjustment parameters, namely the intensity of the embossing, compared to conventional methods. This advantageously allows for a constant process or compensation for variations in the initial material through active readjustment of the parameters.

[0040] According to another advantageous embodiment, the method is improved by using an adjustment device to change the pressure applied to the flat web or multiple strips by the imprinting device, especially by at least one imprinting roller.

[0041] According to another implementation, the material thickness of the flat web is measured as a physical parameter using a sensor unit.

[0042] According to another advantageous implementation, the mechanical hardness and / or tensile resistance of the strip and / or rod-shaped article are measured as physical parameters using a sensor unit.

[0043] If you want to measure the physical parameters of a rod-shaped article, you use a strip forming device to cut individual rod-shaped articles from the produced strip. You then use a sensor unit to measure the individual rod-shaped articles, for example, in terms of mechanical hardness and / or tensile strength.

[0044] The method is further improved according to another advantageous embodiment by using an embossing device to emboss flat webs.

[0045] Other features of the invention will be apparent from the description of embodiments according to the invention, as well as from the claims and drawings. Embodiments according to the invention can implement a single feature or a combination of multiple features. Attached Figure Description

[0046] The invention will now be described with reference to the accompanying drawings and embodiments, without limiting the general inventive concept, wherein all details of the invention not described in detail herein are explicitly referred to in the drawings. Wherein:

[0047] Figure 1 A simplified schematic side view shows an apparatus for manufacturing tobacco strips.

[0048] Figure 2 Showing a top view of the embossed flat web and

[0049] Figure 3 This image shows a cross-sectional view of a rod-shaped article produced in the tobacco processing industry, which is made of multiple unembossed strips. Detailed Implementation

[0050] Within the framework of this invention, features marked with "especially" or "preferred" should be understood as optional features.

[0051] In the accompanying drawings, the same or similar elements and / or parts are respectively given the same reference numerals, so that repeated descriptions are omitted.

[0052] Figure 1A simplified schematic diagram illustrates an apparatus 2 for manufacturing strips 4 made of a flat web 6. The flat web 6 is provided by a feeding device 10 and, for example, unwound from a spool 8. The material of the flat web 6 is, for example, reconstituted tobacco material, foil, such as PLA foil, paper, or cardboard. The flat web 6 is conveyed to a separating device 12 included in the apparatus 2. The separating device 12 is configured to separate the flat web 6 into a plurality of strips 14. The strips 14 extend in a strip plane, which in... Figure 1 The diagram shows the plane perpendicular to the paper. Figure 1 The diagram shows a schematic top view of several fabricated strips 14 as a detailed view, wherein, for clarity, the view is rotated 90° out of the plane of the paper.

[0053] Strips 14, generally parallel to each other, are conveyed, for example, via conveyor rollers 16 toward the feed funnel 18 of the strip forming apparatus 20. Instead of the conveyor rollers 16, smooth, planar guides, such as plates, may be provided on which the strips 14 are pulled and / or pushed. However, it has proven advantageous that the separated strips 14 are not redirected until they reach the feed funnel 18 of the strip forming apparatus 20. The strip forming apparatus 20 is the part of apparatus 2 used for manufacturing strips 4. In this strip forming apparatus, strips 4 are formed from multiple strips 14. Strip forming takes place, for example, in a specification channel 22, which is only schematically shown. After strip forming, the strips 4 can be cut into individual rod-shaped articles 24 of desired lengths.

[0054] The separating device 12 for separating flat webs 6 includes a first roller 26 and a second roller 28 that cooperates with the first roller. The two rollers 26 and 28 are not in mechanical contact with each other. The first roller 26 rotates about a first axis of rotation 27, and the second roller 28 rotates about a second axis of rotation 29. The separating device 12 is designed, for example, as described in DE 10 2018 106 826 A1 of the applicant, Hauni Maschinenbau GmbH.

[0055] The apparatus 2 also includes an embossing device 30, which is arranged between the feeding device 10 and the strip forming device 20. In the illustrated embodiment, the embossing device 30 is arranged between the feeding device 10 and the separating device 12 and is configured to apply an indentation to the flat web 6. According to another embodiment, the feeding device 10 is further provided with a pull roller pair 32, which is configured to draw the flat web 6 from the roll 8 of the feeding device 10. The embossing device is arranged between the pull roller pair 32 and the separating device 12. Thus, the embossing device 30 does not need to apply tension to the flat web 6.

[0056] The printing apparatus 30 comprises, for example, a pair of printing rollers. According to another embodiment, the printing apparatus 30 is arranged downstream of the separating device 12, and in this arrangement, instead of printing the flat web 6, it prints the strip 14 formed from the flat web 6 by means of the separating device 12. The alternative location of this printing apparatus 30 is... Figure 1 The following description of the flat web 6 and its indentations also applies in the same manner to the strip 14 and its indentations.

[0057] Texture is applied to the flat web 6 using an embossing device 30. Protrusions and / or depressions are pressed into the material of the flat web 6, and these protrusions and / or depressions are arbitrary in shape.

[0058] exist Figure 2 The figure shows, for example, a top view of a flat web 6, which includes circular recesses 34 arranged in a regular grid as indentations. For clarity, only a few of these recesses are labeled.

[0059] Imprinting apparatus 30 includes, for example, Figure 1 An adjustment device, not shown, is used to change the height of the indentation. Such an adjustment device is, for example, configured to change the pressure applied to the flat web 6 by the impression device 30, such as by the impression roller shown schematically. Higher pressure results in a deeper indentation than lower pressure. The indentation appears as raised portions on the back side of the flat web, and these raised portions, viewed along a plane perpendicular to the surrounding material, can be assigned a height, i.e., the spacing relative to the surrounding material. In other words, the indentation can thus be characterized by the height of the indentation.

[0060] The device 2 also includes, for example, a thickness measuring device 36 as a sensor unit. The thickness measuring device 36 is configured to measure the material thickness of the flat web 6 as a physical parameter of the flat web 6. The device 2 also includes, for example, other sensor units 35 configured to measure the mechanical hardness and / or tensile strength of the strip 4. Alternatively or additionally, other sensor units 35 are provided, configured to measure the mechanical hardness and / or tensile strength of individual rod-shaped articles 24. All these sensor units 35 are connected to the control unit 38 via a suitable data connection (not shown for clarity). The embossing device 30 is also connected to the control unit 38 via a data connection (not shown for clarity). The control unit 38 receives, for example, measurements relating to the material thickness of the flat web 6, and measurements of the hardness or tensile strength of the strip 4 or individual articles 24, and controls and / or adjusts the height of the indentation applied to the flat web 6 by the embossing device 30 based on these measurements. This adjustment is performed, for example, via pressure applied to the flat web 6 by an embossing roller. This method can compensate for fluctuations in the thickness of the flat web 6. When the material thickness of the flat web 6 is small, a stronger embossing is performed, which offsets the loss of tensile strength and / or mechanical hardness of the strip or individual rod-shaped articles 24 that would otherwise occur due to the small material thickness.

[0061] The indentation applied to the flat web 6 also has the advantage of preventing the formation of stacks 40 consisting of individual strips in the rod-shaped article 24. This should, for example, be... Figure 3 This is illustrated in the simplified cross-sectional view shown, which illustrates a cross-section through the rod-shaped article 24, which includes a single strip that is not embossed.

[0062] The marked area in the cross-sectional view shown has stacked portions 40 consisting of individual strips, in which the flat sides of these strips are stacked almost planar parallel to each other. In such areas of stacked portions 40, the usable surface of the individual strips 14 is reduced.

[0063] By embossing the flat web 6 and thus also embossing the individual strips 14, such as Figure 2 As illustrated in the example, strips 14 can be prevented from overlapping each other across their entire surface. No stacking is formed.

[0064] All mentioned features, features known solely from the accompanying drawings, and individual features disclosed in conjunction with other features are considered essential to the invention, both individually and in combination. Embodiments according to the invention can be implemented using a single feature or a combination of multiple features.

[0065] List of reference numerals

[0066] 2. Device

[0067] 4 items

[0068] 6 Flat Web Sheets

[0069] 8 rolls

[0070] 10. Providing device

[0071] 12 Separation device

[0072] 14 strips

[0073] 16 conveyor rollers

[0074] 18 Feed hopper

[0075] 20 forming devices

[0076] 22 Specification Channels

[0077] 24 items

[0078] 26 First Roller

[0079] 27 First axis of rotation

[0080] 28 Second Roller

[0081] 29 Second axis of rotation

[0082] 30 Imprinting device

[0083] 32 pull roller pairs

[0084] 34. Depression

[0085] 35 sensor units

[0086] 36 Thickness measuring device

[0087] 38 Control Unit

[0088] 40 Stacking Section

Claims

1. An apparatus (2) for manufacturing tobacco strips (4) for the tobacco processing industry, the apparatus comprising a feeding device (10), a separating device (12), a strip forming device (20), and an embossing device (30), wherein, ● The supplying device (10) is configured to supply flat webs (6) and convey them to the separating device (12) arranged downstream of the supplying device (10). ● The separation device (12) is configured to separate the flat web (6) into multiple strips (14). ● The strip forming device (20), located downstream of the separating device (12), is configured to form a strip (4) from the plurality of strips (14), and ● The embossing device (30) is arranged between the providing device (10) and the strip forming device (20) and is configured to apply an indentation to the flat web (6) or a plurality of strips (14), characterized in that the embossing device (30) includes an adjustment device by means of which the height of the indentation can be changed, and the device includes at least one sensor unit (35) and a control unit (38) connected to the sensor unit, wherein the at least one sensor unit (35) is configured to measure at least one physical parameter of the flat web (6) and / or the strip (4) and / or the rod-shaped article (24) made of the strip (4), and the control unit (38) is configured to control and / or adjust the height of the indentation according to the measured physical parameter using the adjustment device, wherein the embossing device (30) is configured to apply a three-dimensional shape to the flat web (6) or a plurality of strips (14) as an indentation.

2. The apparatus (2) according to claim 1, characterized in that, The adjustment device is configured to change the pressure applied by the embossing device (30) to the flat web (6) or the plurality of strips (14).

3. The apparatus (2) according to claim 2, characterized in that, The adjustment device is configured to change the pressure applied by at least one impression roller to the flat web (6) or the plurality of strips (14).

4. The apparatus (2) according to any one of claims 1 to 3, characterized in that, The sensor unit (35) is a thickness measuring device (36), which is set up to measure the material thickness of the flat web (6) as a physical parameter of the flat web (6).

5. The apparatus (2) according to any one of claims 1 to 3, characterized in that, The sensor unit (35) is configured to measure the mechanical hardness and / or tensile resistance of the strip (4) and / or the rod-shaped article (24) as physical parameters.

6. The apparatus (2) according to claim 1, characterized in that, The embossing device (30) is arranged between the providing device (10) and the separating device (12) and is configured to apply the indentation to the flat web (6).

7. The apparatus (2) according to claim 6, characterized in that, The supplying device (10) includes a pair of pull rollers (32) configured to draw the flat web (6) from the roll (8) of the supplying device (10), and the imprinting device (30) is arranged between the pair of pull rollers (32) and the separating device (12).

8. A method for manufacturing a bar (4) for the tobacco processing industry, said method comprising the following steps: ● The flat web (6) is provided by the providing device (10) and the flat web (6) is conveyed to the separating device (12) arranged downstream of the providing device (10). ● The flat web (6) is separated into multiple strips (14) using the separation device (12). ● The strip (4) is formed from the plurality of strips (14) using the strip forming device (20). ● Imprint the flat web (6) or multiple strips (14). The embossing device (30) is adjusted by an adjustment device in such a way that the height of the indentation is changed, wherein the physical parameters of the flat web (6) and / or the strip (4) and / or the rod-shaped article (24) made of the strip (4) are measured by a sensor unit (35) and a control unit (38) connected to the sensor unit, and the height of the indentation is controlled and / or adjusted by the adjustment device according to the measured physical parameters, wherein a three-dimensional shape is applied to the flat web (6) or the plurality of strips (14) as an indentation.

9. The method according to claim 8, characterized in that, The adjustment device is used to change the pressure applied by the embossing device (30) to the flat web (6) or the plurality of strips (14).

10. The method according to claim 9, characterized in that, The adjustment device is used to change the pressure applied by at least one impression roller to the flat web (6) or the plurality of strips (14).

11. The method according to any one of claims 8 to 10, characterized in that, The material thickness of the flat web (6) is measured using the sensor unit (35) as a physical parameter.

12. The method according to any one of claims 8 to 10, characterized in that, The mechanical hardness and / or tensile resistance of the strip (4) and / or the rod-shaped article (24) are measured as physical parameters using the sensor unit (35).

13. The method according to claim 8, characterized in that, The flat web (6) is imprinted using the imprinting device (30).

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