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EP4547045A1 - Machine dans l'industrie de transformation du tabac pour la production d'une tige, et procédé de production d'une tige dans l'industrie de transformation du tabac - Google Patents

Machine dans l'industrie de transformation du tabac pour la production d'une tige, et procédé de production d'une tige dans l'industrie de transformation du tabac

Info

Publication number
EP4547045A1
EP4547045A1 EP23732964.4A EP23732964A EP4547045A1 EP 4547045 A1 EP4547045 A1 EP 4547045A1 EP 23732964 A EP23732964 A EP 23732964A EP 4547045 A1 EP4547045 A1 EP 4547045A1
Authority
EP
European Patent Office
Prior art keywords
flat web
shoulder
roller
forming
flat
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.)
Pending
Application number
EP23732964.4A
Other languages
German (de)
English (en)
Inventor
Stefan Seyer
Andreas Tönsmann
Julian Kuschel
Irene Maurer
Claus Ropers
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
Koerber Technologies GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Koerber Technologies GmbH filed Critical Koerber Technologies GmbH
Publication of EP4547045A1 publication Critical patent/EP4547045A1/fr
Pending legal-status Critical Current

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
    • A24C5/18—Forming the rod
    • A24C5/1807—Forming the rod with compressing means, e.g. garniture
    • 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
    • A24C5/01—Making cigarettes 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
    • 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
    • A24D3/0229—Filter rod forming processes
    • A24D3/0233—Filter rod forming processes by means of a garniture

Definitions

  • the invention relates to a machine in the tobacco processing industry for producing a strand from a flat web, such a machine comprising the following devices arranged one behind the other in a material flow direction: a flat web structuring device, a flat web pre-forming device and a strand forming device.
  • the invention further relates to a method for producing a strand for the tobacco processing industry from a flat web.
  • Rod-shaped articles for the tobacco processing industry can be made from such a strand. In many cases, these items form a segment of a product in the tobacco processing industry.
  • a flat sheet of reconstituted tobacco material are processed into rod-shaped segments, which are used in an HNB article (for “Heat-Not-Burn”), also referred to as a THP article (for “Tobacco-Heated-Product”).
  • HNB article for “Heat-Not-Burn”
  • THP article for “Tobacco-Heated-Product”.
  • Another item in the tobacco processing industry made from a strand is, for example, a segment made from PLA film or comprising PLA film. Such segments serve as cooling elements in HNB articles, for example.
  • An essential process step when processing a flat web into one of the above-mentioned articles is the transformation of the flat web from a flat state into a strand that is at least approximately round in cross-section.
  • the flat web is gathered together, for example, transversely to its longitudinal direction and then formed into a strand in a format unit and in particular wrapped.
  • Flat web preforming devices are used to transfer the flat web from the flat web-shaped state into the gathered state, from which the flat web is further compressed within the format unit.
  • Such a flat web preforming device is known, for example, from US 4,807,809, from US 4,170,347 or from WO 2019/158313 A1.
  • the flat web is subjected to pretreatment in such a way that, for example, elevations and depressions are introduced into the flat web using a pair of rollers.
  • a flat web structuring device which is often a crimping device, passes through the flat web before it enters the flat web preforming device.
  • a roller used for this purpose in many cases often has elevations in its lateral surface, which interact with depressions in the opposite roller of the pair of rollers. The same applies to depressions present in the first-mentioned roller; these typically interact with elevations in the opposite roller.
  • This pretreatment makes the later gathering process easier.
  • the structuring of the flat web which is introduced using the flat web structuring device, is larger than desired or beneficial for the gathering process.
  • the flat web in order to slightly reduce the waviness caused by the structuring, for example, can be pulled over a sliding or smoothing edge, which ensures that the material of the flat web at least partially unfolds or stretches again.
  • a sliding or smoothing edge Such a device is known, for example, from EP 3 624 616 B1.
  • a machine in the tobacco processing industry for producing a strand from a flat web, comprising the following ones arranged one behind the other in a material flow direction Devices: a flat web providing device for providing the flat web, a flat web structuring device, in particular a crimping device, with which a structure can be introduced into the flat web, through which the flat web receives an at least partially changed cross-section when spread out, a flat web pre-forming device, with which the flat web is preformed State can be transferred, and a strand forming device with which the strand can be produced from the preformed flat web, this machine being developed by a transport roller arranged between the flat web structuring device and the flat web preforming device, the flat web being moved in the material flow direction by means of and/or along the transport roller, in particular the Transport roller is advantageously guided tangentially over a wrap angle greater than zero and/or less than 95 degrees, and wherein the transport roller is set up and designed for guiding the spread flat web and/or for adjusting a web
  • the flat web structuring device is designed in particular to introduce a three-dimensional structure into the flat web. Furthermore, the flat web structuring device is set up in particular to emboss a structure into the flat web.
  • the structure introduced into the flat web by the flat web structuring device changes the cross section of the flat web, viewed in a plane that is oriented at least approximately perpendicular to a longitudinal direction of the flat web.
  • the cross section of the flat web is at least approximately rectangular.
  • This shape is changed at least locally, i.e. at least in sections, by the deformation process.
  • the deformation can be accompanied by a local reduction in the cross section of the flat track.
  • the deformation again viewed in cross section, can cause a local curvature, bulge or similar of the flat web, whereby a reduction or even a local increase in the material thickness can also occur.
  • the flat web is advantageously guided by means of, over and/or along the transport roller and in this way the web tension of the flat web is kept at a desired value.
  • the flat web can be guided by, over or with the aid of the transport roller.
  • the transport roller acts as a guide for the flat web that has been spread out, i.e. not yet gathered or compacted. Transporting the flat web by means of a transport roller prevents abrasion on the flat web, in contrast to the known technical solution in which the flat web is deflected via a deflection edge or the like and in this way the web tension is maintained.
  • the same advantage also applies to the guidance of the flat track.
  • the flat web is guided in tangential contact with the transport roller, particularly in the material flow direction.
  • Such a tangential guide is also suitable for setting, controlling and/or regulating the desired web tension of the flat web and, alternatively or additionally, for guiding the flat web.
  • the flat web is guided in contact with the transport roller via a wrap angle.
  • Such a wrap angle is greater than zero and less than 95 degrees.
  • a wrap angle is understood to mean an angular range in which the flat web is guided in contact with the transport roller. For example, if the flat web is guided in such a way that it is deflected at an at least approximately right angle by the transport roller, the associated wrap angle would be at least approximately 90 degrees.
  • the transport roller is designed to be particularly rotatable. Furthermore, it is particularly provided that the transport roller is one Rotation axis is designed to rotate. Furthermore, it is particularly provided that the transport roller is designed to rotate about an axis of rotation in such a way that it is designed with a peripheral speed that is equal to a speed of the material flow or is lower or higher than the speed of the material flow.
  • the transport roller is able to move at the same speed as the flat web, so that no or only an extremely small relative movement occurs between a lateral surface of the transport roller and the flat web. Undesirable abrasion on the flat web and the associated process dust are avoided.
  • a material flow is understood to mean the local direction of the material being transported or conveyed.
  • the material flow direction locally follows the transport direction and changes together with the transport direction depending on the process step under consideration.
  • the forming edge runs spatially, which means that it does not extend in one plane.
  • the machine is developed in that the transport roller is driven.
  • a drive can be designed passively, for example in the form of a freely rotating roller, or actively, i.e. in the form of a driven roller.
  • the drive can be controlled or regulated.
  • a rotational speed of the transport roller is controlled or regulated in a manner adapted to the web speed.
  • the machine of the tobacco processing industry is developed in that the flat web pre-forming device has a shaping shoulder or is designed in the form of a shaping shoulder, which has a forming section with a a contour extending essentially transversely to the direction of material flow and having a substantially convex shape, and a tubular section which is or has a contour extending essentially transversely to the direction of material flow and having a substantially concave shape, wherein in particular the forming section and the tubular section are preferably along a spatial forming edge merge into one another and wherein the forming section and the tubular section of the forming shoulder are arranged relative to one another in such a way that in the material flow direction the flat web, starting from the transport roller in an at least approximately flat state, first comes into contact with the forming section in a first transport direction and then over the forming edge away in an at least partially rolled up state in a second transport direction comes into contact with the tubular section, furthermore the first and the second transport directions enclosing
  • the machine can be built very compactly. Furthermore, the flat web advantageously only comes into contact with the mold shoulder on one of its two sides. This is particularly advantageous for coated or wetted flat webs.
  • the forming edge runs spatially, which means that it does not run completely within a plane. According to a further embodiment, however, the forming edge is not designed spatially, so it runs flat and completely in one plane.
  • the shaped shoulder comprises a right and a left front shoulder element and a right and a left rear shoulder element
  • the school terelements are arranged in relation to one another in such a way that the flat web, starting from the transport roller and viewed in the material flow direction, first comes into contact with the front shoulder elements and then into contact with the rear shoulder elements, and the shoulder elements are in particular individually adjustable.
  • the shoulder elements can therefore be individually and independently adjustable, but this is not necessarily the case. According to further embodiments, it is provided that the shoulder elements can be adjusted in pairs, for example.
  • the shaping shoulder further comprises, in particular, a holding structure to which the right and left front shoulder elements and the right and left rear shoulder elements are attached.
  • An adjustability of the shoulder elements allows the shaping shoulder to be flexibly adjusted to different requirements regarding strand shaping.
  • the forming shoulder can be adjusted to flat sheets of different widths.
  • the shaping shoulder can be adjusted to different desired diameters of the material strand to be produced.
  • the machine is developed for this purpose in particular in that the shoulder elements are adjustable in such a way that a length of the forming edge can be changed. By extending the length of the forming edge, the forming shoulder can be adapted to flat sheets of different widths.
  • the shaping shoulder is further developed in particular in that intermediate pieces of different sizes and/or different shapes are provided between the shoulder elements in order to provide a continuous forming edge.
  • the forming shoulder has a left intermediate piece which extends between the left front shoulder element and the left rear shoulder element and the forming edge between these two shoulder elements continues, as well as a right intermediate piece, which continues the forming edge in the opposite area and extends between the front right shoulder element and the rear right shoulder element.
  • the intermediate elements make it possible to provide a continuous forming edge, even in different settings of the shoulder elements.
  • the shoulder elements are each adjustable in a linear movement.
  • This embodiment is further developed in particular in that the front shoulder elements are displaceable along front displacement directions, which lie in a plane perpendicular to a longitudinal axial direction of the tubular section and point towards a center of the tubular section, and the rear shoulder elements along rear displacement directions are displaceable and the rear displacement directions run obliquely to the plane mentioned and intersect at least approximately in a straight line defined by the longitudinal axial direction, this intersection point lying outside the tubular section.
  • the mold shoulder can be flexibly adjusted on the one hand, but on the other hand, the design effort for the realization of such a flexible mold shoulder is advantageously kept within limits.
  • a motor drive or several motor drives is or are present for adjusting at least one shoulder element, in particular all shoulder elements. These drives can be implemented with technically manageable effort due to the existing linear adjustability of the shoulder elements.
  • a length of the forming edge of the mold shoulder is between 100 mm and 400 mm, in particular between 100 mm and 300 mm, further in particular between 100 mm and 180 mm or between 180 mm and 300 mm.
  • the web tension required for forming the flat web is built up with the help of the transport roller, which is positioned in a defined arrangement relative to the forming shoulder.
  • the web tension is an essential quality feature for the forming process.
  • a machine can be used flexibly for different web widths.
  • the web width is adjusted via the adjustable shoulder elements of the forming shoulder, which can be achieved by simple linear displacements.
  • the contact surface provided on one side by the shaping shoulder for shaping the flat web i.e. the transformation from a substantially flat state into a substantially round or cylindrical state, is advantageous because on the opposite side, which does not come into contact with the shaping shoulder,
  • a liquid can be applied as a flavor carrier or the like.
  • Such a treated flat web can be advantageously processed with the machine which is designed in accordance with the aforementioned embodiments.
  • the tubular portion of the mold shoulder is not necessarily designed in the form of a closed tube.
  • the tubular section does not have a completely closed lateral surface.
  • the tubular section has a groove running along its longitudinal direction.
  • the tubular section is, for example, cylindrical jacket-shaped, but can also be designed to be slightly tapered, for example.
  • the machine for the tobacco processing industry is developed in that the transport roller is a crowned roller and the flat web pre-forming device comprises at least one keyway roller.
  • the flat web can be gathered together in a direction transverse to its longitudinal direction.
  • the keyway roller like the transport roller, can be freely rotatable or driven in an uncontrolled or unregulated manner or also in a controlled or regulated manner.
  • the transport roller designed as a spherical roller, also serves in particular as a guide for the flat web due to its more or less convex shape.
  • the keyway roller comprises cheeks forming the keyway, which are coupled to one another by a connecting shaft, with a support body being present on the connecting shaft, in particular centrally between the cheeks , whose cross section is larger than the connecting shaft.
  • the support body ensures that the flat web can be gathered together more easily.
  • the flat web preforming device comprises a first and a second spline roller, the first and the second keyway roller are arranged in such a way that the first keyway roller cooperates with an underside of the flat web, with which the flat web is also guided over or along the transport roller, and the second keyway roller cooperates with an upper side of the flat web and is arranged in particular downstream of the first keyway roller.
  • first keyway roller comprises a first support body and the second keyway roller comprises a second support body, whereby, viewed in a cross section which cuts the respective connecting shaft in the middle, an aspect ratio of height to width of the second support body is greater than that first support body.
  • the second keyway roller therefore has a support body which is narrower and higher than the support body of the first keyway roller.
  • the machine of the tobacco processing industry is further developed by an application device arranged between the flat web structuring device and the flat web preforming device, in particular between the flat web structuring device and the transport roller, which is designed to apply an additive, in particular a liquid, to an upper side of the Apply flat web, which is opposite an underside with which the flat web is guided over or along the transport roller.
  • an application device arranged between the flat web structuring device and the flat web preforming device, in particular between the flat web structuring device and the transport roller, which is designed to apply an additive, in particular a liquid, to an upper side of the Apply flat web, which is opposite an underside with which the flat web is guided over or along the transport roller.
  • Both the forming shoulder and the keyway roller only come into contact with the flat web on one side, which is why both devices are particularly suitable for transverse gathering of a flat web on the top of which a liquid has been applied.
  • the machine of the tobacco processing industry and in particular the application device are also designed and set up in such a way that no substance, in particular no liquid, is or can be applied to the underside of the flat web.
  • the transverse gathering is carried out in a way that is gentle on the material and reduces the dust generated during the process, and the machine can also be implemented with manageable design effort.
  • the flat web is, for example, a paper web.
  • This paper web is also used, for example, to produce a paper filter strand as a strand for the tobacco processing industry.
  • a machine for the tobacco processing industry for producing a strand from a flat web, which comprises the following devices arranged one behind the other in a material flow direction: a flat web providing device for providing the flat web, a flat web structuring device, in particular a crimping device with which a structure, in particular a three-dimensional structure, can be introduced into the flat web, through which the flat web has an at least partially changed cross-section in the expanded state, a flat web pre-forming device with which the flat web can be converted into a pre-formed state, and one Strand forming device with which the strand can be produced from the preformed flat web.
  • a flat web providing device for providing the flat web
  • a flat web structuring device in particular a crimping device with which a structure, in particular a three-dimensional structure, can be introduced into the flat web, through which the flat web has an at least partially changed cross-section in the expanded state
  • a flat web pre-forming device with which the flat web can be converted into a pre-formed state
  • the flat web preforming device has a shaping shoulder or is designed in the form of a shaping shoulder, which has a forming section with a contour that extends essentially transversely to the material flow direction and is essentially convex, and a tubular section with a contour that extends essentially transversely to the material flow direction extending and essentially concave contour and forming an opening and the flat web preforming device with the opening pointing upwards is arranged, preferably inclined upwards or downwards in an extension in the material flow direction or parallel to the horizontal.
  • the object is achieved by a method for producing a strand of the tobacco processing industry from a flat web with a machine of the tobacco processing industry, comprising the following devices arranged one behind the other in a material flow direction: a flat web providing device with which the flat web is provided, a flat web structuring device, in particular a crimping device, with which a structure is introduced into the flat web, through which the flat web receives a changed cross-section at least in sections in the expanded state, a flat web pre-forming device, with which the flat web is converted into a pre-formed state, and a strand forming device, with which preformed flat web the strand is produced, the method being developed in that a transport roller is arranged between the flat web structuring device and the flat web preforming device and the flat web in the material flow direction by means of and / or along the transport roller, in particular the transport roller, advantageously tangentially or via a wrap angle greater than zero and/or less than 95 degrees, contacting, is guided, wherein the transport roller guides the following
  • the transport roller is driven.
  • the transport roller is driven to rotate about an axis of rotation.
  • the transport roller is driven in such a way that it has a peripheral speed that is equal to or lower or higher than a speed of the material flow.
  • the transport roller is in particular actively driven, that is, controlled and/or regulated.
  • the transport roller can also be designed to rotate passively.
  • the flat web preforming device has a shaping shoulder or is designed in the form of a shaping shoulder, which has a forming section, with a contour which extends essentially transversely to the material flow direction and is essentially convex, and a tubular section, with a substantially transverse to the material flow direction and essentially concavely shaped contour, is or has, in particular the forming section and the tubular section merging into one another along a preferably spatial forming edge and wherein in the material flow direction the flat web, starting from the transport roller, is in an at least approximately flat state a first transport direction first comes into contact with the forming section and then comes into contact with the tubular section over the forming edge in an at least partially rolled-up state in a second transport direction, the first and the second transport directions enclosing an angle which is between 71 ° and 120° (71 degrees and 120 degrees), in particular between 71° and 90° (71 degrees and 90 degrees), and further in particular is at least approximately 90°
  • the forming shoulder comprises a right and a left front shoulder element and a right and a left rear shoulder element
  • the flat web starting from the transport roller and viewed in the material flow direction first comes into contact with the front shoulder elements and then comes into contact with the rear shoulder elements, and in order to adapt the forming shoulder to a flat track with different widths, the shoulder elements are adjusted in particular individually, so that a length of the forming edge is changed.
  • the shoulder elements are each adjusted in a linear movement.
  • the method for producing a strand of the tobacco processing industry is developed in that the transport roller is a crowned roller and the flat web pre-forming device comprises at least one keyway roller, the flat web passing through the keyway roller and being preformed by it.
  • the flat web preforming device comprises a first and a second keyway roller, the keyway rollers each comprising cheeks forming the keyway, which are coupled to one another by a connecting shaft, with a support body on the connecting shaft, in particular centrally between the cheeks is present, the cross section of which is larger than the connecting shaft, the first keyway roller interacting with an underside of the flat web, with which the flat web is also guided over or along the transport roller, and the second keyway roller interacting with an upper side of the flat web.
  • the method is advantageously developed in that an application device is arranged between the flat web structuring device and the flat web preforming device, in particular between the flat web structuring device and the transport roller, which applies an additive, in particular a liquid, to an upper side of the flat web, which is opposite an underside which the flat web is guided over or along the transport roller.
  • the method for producing a strand in the tobacco processing industry has the same or similar advantages as well as the same or similar further training opportunities as have already been mentioned previously with regard to the machine in the tobacco processing industry, so that repetitions should be avoided.
  • a strand of the tobacco processing industry produced by a method according to one or more of the aforementioned embodiments is further provided in particular for producing a filter for the tobacco processing industry.
  • a paper web is used as a flat web.
  • a paper filter can thus advantageously be provided. Paper filters are far superior to conventional filters when it comes to environmental aspects.
  • Embodiments according to the invention can fulfill individual features or a combination of several features.
  • FIG. 1 shows a machine in the tobacco processing industry for producing a strand from a flat web, in a schematic view
  • FIG. 2 is a simplified perspective view of a mold shoulder
  • FIG. 3 is a simplified frontal view of a mold shoulder set to produce a strand with a large cross section
  • Fig. 4 is a simplified front view of a forming shoulder adjusted to produce a small diameter strand, compared to the setting shown in Fig. 3;
  • FIG. 6 is a simplified perspective view of part of a machine in the tobacco processing industry, which includes a keyway roller as a pre-forming device,
  • FIG. 7 is a simplified perspective view looking at the top of a flat web gathered with a spline roller
  • Fig. 8 is a simplified perspective view with a view of an underside of the flat web and
  • Fig. 9 is a further simplified perspective detailed view of one Machine for the tobacco processing industry for producing a strand from a flat web, comprising a first and second keyway roller as a flat web pre-forming device.
  • Fig. 1 shows a schematic representation of a machine 2 in the tobacco processing industry.
  • the machine 2 includes a flat web providing device 8 for providing the flat web 4.
  • the flat web 4 is provided on a reel 10, for example.
  • the flat web supply device 8 can be designed as a reel changer. According to such an exemplary embodiment, it has more than one holder for holding a reel 10 and, for example, a corresponding splicing device, which allows the individual flat webs 4 present on a reel 10 to be connected to one another to form an infinitely long flat web 4.
  • the machine 2 Downstream in the material flow direction, the machine 2 includes a flat web structuring device 12, which includes, for example, two crimping rollers 14. With the help of the crimping rollers 14, a three-dimensional structure is introduced into the flat web 4, in particular embossed. The flat web 4, still viewed in the material flow direction, then passes via a dancer 16, which serves to maintain, control or regulate the web tension, as well as various unspecified deflection rollers to an application device 18. With the help of the application device 18, an upper side 20 of the flat web 4 a liquid 22 is applied, for example sprayed on. An opposite underside 21 remains unwetted.
  • a flat web structuring device 12 includes, for example, two crimping rollers 14.
  • a three-dimensional structure is introduced into the flat web 4, in particular embossed.
  • the flat web 4 still viewed in the material flow direction, then passes via a dancer 16, which serves to maintain, control or regulate the web tension, as well as various unspecified deflection rollers to an application
  • the flat web 4 then reaches a transport roller 24, still viewed in the material flow direction, and is introduced into a flat web pre-forming device 26 over or along the transport roller 24.
  • the transport roller 24 ensures that the flat web 4 is held under a suitable pretension, so that the flat web 4 can be converted into a preformed state in the flat web preforming device 26.
  • the preformed flat web 32 arrives in a preformed state into a strand forming device 28.
  • the strand forming device 28 is a format unit into which the preformed flat web 32 arrives via an inlet funnel 30.
  • the strand 6 is formed from the preformed flat web 32 in the format unit.
  • Rod-shaped articles from the tobacco processing industry can be cut to length from the strand 6 using a cutting device (not shown).
  • the flat web 4 is a paper web from which a paper filter strand is produced as a strand 6. From this paper filter strand, paper filters are then cut to length as rod-shaped articles for the tobacco processing industry.
  • a top view of the flat web 4 is schematically illustrated. While the flat web 4 is in its original width up to the flat web pre-forming device 26, it is reshaped in the flat web pre-forming device 26 from a gathered or, for example, cylindrical structure. The result is the preformed flat web 32, which is formed into a strand 6 in the strand forming device 28.
  • the transport roller 24 is provided.
  • the transport roller also serves in particular to guide the flat web 4.
  • the transport roller 24 is designed to be driven, for example.
  • the transport roller 24 can also rotate freely. be designed. If the transport roller 24 is driven, this drive can be controlled or regulated. For example, a speed of the transport roller 24 is adjusted to a web speed of the flat web 4 and the speed of the transport roller 24 is correspondingly controlled or regulated to the web speed of the flat web 4.
  • the flat web preforming device 26 is designed as a shaping shoulder 36. This exemplary embodiment is explained in FIGS. 2 to 5. According to a further exemplary embodiment, the flat web preforming device 26 is designed as a keyway roller 38. This exemplary embodiment is explained in FIGS. 6 to 9.
  • Fig. 2 shows a simplified perspective view of a forming shoulder 36.
  • the forming shoulder 36 comprises a forming section 40 and a tubular section 42. Both sections are distributed over different components of the forming shoulder 36, as will be explained further below.
  • the forming section 40 and the tubular section 42 merge into one another along, for example, a spatial forming edge 44.
  • the forming edge 44 is spatial in the sense that it does not lie or run in a single plane.
  • the tubular section 42 is, for example, cylindrical, with a lateral surface or inside of the tubular section 42 not necessarily having to form a completely closed surface. For example, in an upper region of the tubular section 42, between the shoulder elements 50, 52 described in more detail below, there is a gap running in the longitudinal direction of the tubular section 42.
  • the forming section 40 and the tubular section 42 of the forming shoulder 36 are arranged relative to one another in such a way that, in the material flow direction, the flat web 4, starting from the transport roller 24, first comes into contact with the forming section 40 in an at least approximately flat or flat state and in a first transport direction T1. The flat web 4 then comes into contact with the tubular section 42 over the forming edge 44 in an at least partially rolled-up state in a second transport direction T2.
  • the first transport direction T1 and the second transport direction T2 form an angle which is at least approximately is 90°.
  • the mold shoulder 36 includes a right front shoulder element 46 and a left front shoulder element 48.
  • the two front shoulder elements 46, 48 have curved outer surfaces which form a portion of the forming section 40 of the mold shoulder 36.
  • the mold shoulder 36 further comprises a right rear shoulder element 50 and a left rear shoulder element 52.
  • the rear shoulder elements 50, 52 in turn have curved outer surfaces, which also form a portion of the forming section 40 of the mold shoulder 36.
  • the flat web 4 viewed in the material flow direction, which corresponds to the first transport direction T1, first comes into contact with the front shoulder elements 46, 48, more precisely their forming sections 40.
  • a central region of the flat web 4 initially comes across the forming edge 44 into the tubular section 42 of the mold shoulder 36. Downstream of the forming edge 44, the flat web 4 is transported in an at least partially rolled-up state in the second transport direction T2.
  • the side or edge regions of the flat web 4 come into contact further above with the rear shoulder elements 50, 52, more precisely their forming sections 40.
  • the flat web 4 is formed into an at least approximately cylindrical body and in the direction of the second transport direction T2 through the tubular section 42 promotes.
  • the side edges of the flat web 4 can overlap one another, lie in abutment with one another or have a gap between one another that extends in the longitudinal direction of this cylindrical body.
  • the shoulder elements 46, 48, 50, 52 are fastened together to a flange 54.
  • a guide element 56 is present between the flange 54 and the shoulder elements 46, 48, 50, 52.
  • spacer elements are provided between the front and rear shoulder elements 46, 48 and 50, 52.
  • a right spacer element 58 extends between the right front shoulder element 46 and the right rear shoulder element 50. Through this right spacer element 58, the forming edge 44 can be continued continuously between the right front shoulder element 46 and the right rear shoulder element 50.
  • the left spacer element 60 extends between the left front shoulder element 48 and the left rear shoulder element 52 and continuously continues the forming edge 44 between these two shoulder elements 48, 52. Furthermore, a central spacer element 62 can be provided, which continuously extends the forming edge 44 between the right and left front shoulder elements 46, 48.
  • the spacer elements 58, 60, 62 are advantageously provided because the shoulder elements 46, 48, 50, 52 are individually adjustable.
  • the shoulder elements 46, 48, 50, 52 are each adjustable in a linear movement.
  • the shoulder elements 46, 48, 50, 52 are attached to the associated guide element, for example via a corresponding elongated hole connection 64.
  • a scale can enable the shoulder elements 46, 48, 50, 52 to be adjusted along precisely defined adjustment paths.
  • the shoulder elements 46, 48, 50, 52 are adjustable in such a way that a length of the forming edge 44 can be changed. Accordingly, spacer elements 58, 60, 62 of different sizes can be provided be in order to realize appropriate settings of the mold shoulder 36.
  • the front shoulder elements 46, 48 are displaceable along front displacement directions which lie in a plane perpendicular to a longitudinal axial direction L of the tubular section 42.
  • a motor drive or several motor drives can be present. These drives, not shown, can be implemented with manageable technical effort due to the existing linear adjustability of the shoulder elements 46, 48, 50, 52.
  • the shoulder elements 46, 48, 50, 52 can be individually adjustable independently of one another, be they motor-driven or manually adjustable. A coupled adjustability can also be provided.
  • Fig. 3 shows a simplified frontal view of the mold shoulder 36, schematically showing a right front displacement direction 66, along which the right front shoulder element 46 is displaceable, and a left front displacement direction 68, along which the left front shoulder element 48 is displaceable.
  • the two displacement directions 66, 68 point in the direction of an axis which coincides with the longitudinal axial direction L of the tubular section 42. They therefore point towards a center of the tubular section 42.
  • the rear shoulder elements 50, 52 are displaceable along rear displacement directions 70, 72, these rear displacement directions 70, 72 running obliquely to the aforementioned plane.
  • a right rear displacement direction 70, in the direction of which the right rear shoulder element 50 is displaceable, and a left rear displacement direction 72, along which the left rear shoulder element 52 is displaceable, are indicated.
  • the rear displacement directions 70, 72 meet at least approximately in a straight line defined by the longitudinal axial direction L, this intersection point lying outside the tubular section 42.
  • the length of the forming edge 44 can be changed. While the forming edge 44 is comparatively large in FIG is. For example, if the forming shoulder 36 is in the state shown in FIG. It is also possible to process different wide flat sheets 4. For example, with the setting of the forming shoulder 36 shown in FIG. 3, a rather wide flat web 4 is processed than is the case when the forming shoulder 36 is in the state shown in FIG. 4. The shaping shoulder 36 can therefore be flexibly adjusted to flat sheets 4 of different widths.
  • FIG. 5 shows a simplified side view of the mold shoulder 36.
  • the first and second transport directions T1, T2 are illustrated, which at least approximately enclose an angle of 90°.
  • the shoulder elements 46, 48, 50, 52 are in the state shown in FIG. 4, i.e. have moved so far that no spacer elements 58, 60, 62 are provided between the shoulder elements 46, 48, 50, 52.
  • the right front displacement direction 66 of the right front shoulder element 46 and the right rear displacement direction 70 of the right rear shoulder element 50 are also shown.
  • the flat web preforming device 26 used is not the mold shoulder 36 previously described in connection with FIGS. 2 to 4, but rather a keyway roller 38.
  • 6 shows a simplified perspective view of a part of the machine 2, which includes a keyway roller 38 as a preforming device 26.
  • the flat web 4 passes through a pair of crimping rollers 14 as a flat web structuring device 12 and then reaches the transport roller 24 along the first transport direction T1.
  • the transport roller 24 ensures the web tension required for the subsequent pre-shaping of the flat web 4.
  • the transport roller 24 is designed as a crowned roller 74.
  • the flat web 4 runs over the transport roller 24 in the direction of the keyway roller 38, the flat web 4 now being conveyed in the direction of the second transport direction T2.
  • the keyway roller 38 becomes the flat web preforming device 26 by folding or gathering the flat web 4 transversely to its longitudinal direction.
  • the preformed flat web 32 then runs into an inlet hopper 30 of a format unit as a strand forming device 28 for further processing.
  • the keyway roller 38 includes a left and a right cheek 76, 78 forming the keyway. These are coupled and/or connected to one another via a connecting shaft 80.
  • the first transport direction T1 is the direction in which the flat web 4 is fed to the transport roller 24.
  • the second transport direction T2 is the direction in which the at least partially gathered flat web 32 is conveyed downstream of the transport roller 24.
  • the second transport direction T2 coincides, for example, with a longitudinal direction of the tubular section 42 of the mold shoulder 36.
  • the second transport direction T2 can coincide with a conveying direction of the shirred flat web 32 in the strand forming device 28.
  • the second transport direction T2 and the conveying direction of the strand forming device 28 downstream of the inlet funnel 30 can also differ slightly from one another.
  • An angle between the first and second transport directions T1, T2 is always determined in a common plane. If the two transport directions are placed together like vectors, for example the tip of the vector for the first transport direction T1 at the end of the vector for the second transport direction T2, the angle between the two directions should always be the smaller of the two possible angles.
  • the vector of the first transport direction T1 collide with the vector of the second transport direction T2 from above.
  • Fig. 7 shows a further simplified perspective view of the area of the machine 2 in the area of the keyway roller 38.
  • Fig. 8 shows this situation with a view of the underside 21 of the flat track 4.
  • the support body 82 supports the gathering of the flat web 4.
  • both keyway rollers 38a, 38b are designed like the previously described keyway roller 38.
  • the first keyway roller 38a interacts with an underside 21 of the flat web 4, with which the flat web 4 is also guided over or along the transport roller 24.
  • the transport roller 24 is again a spherical roller 74.
  • the second keyway roller 38b interacts with an upper side 20 of the flat track 4 and is, for example, arranged downstream of the first keyway roller 38a.
  • the first and second spline rollers 38a, 38b can have differently shaped support bodies 82.
  • the second support body 82b viewed in a plane in which the connecting shaft 80 runs, is designed such that its aspect ratio of height to width is greater than the aspect ratio of the first support body 82a.
  • the second support body 82b is designed to be higher and narrower than the first support body 82a.
  • This different shape of the support bodies 82a, 82b contributes to the fact that the flat web 4 can be preformed in an improved manner.

Landscapes

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

Abstract

L'invention concerne une machine (2) dans l'industrie de transformation du tabac pour produire une tige (6) à partir d'une bande plate (4), ladite machine comprenant les dispositifs suivants disposés en série dans une direction d'écoulement de matériau : un dispositif de fourniture de bande plate (8) pour fournir la bande plate (4); un dispositif de structuration de bande plate (12), par exemple un dispositif de sertissage, qui peut être utilisé pour introduire une structure dans la bande plate (4), au moyen de ladite structure, la bande plate (4), lorsqu'elle est étalée, a une section transversale qui est modifiée au moins par sections; un dispositif de préformation de bande plate (26) au moyen duquel la bande plate (4) peut être transférée dans un état préformé; et un dispositif de formation de tige (28) au moyen duquel la tige (6) peut être produite à partir de la bande plate préformée (4). La machine (2) est développée par un rouleau de transport (24) qui est situé entre le dispositif de structuration de bande plate (12) et le dispositif de préformation de bande plate (26). La bande plate (4) est guidée sur le rouleau de transport (24) ou le long de celui-ci dans la direction d'écoulement de matériau, et le rouleau de transport (24) est conçu et configuré pour guider la bande plate étalée (4) et/ou pour ajuster une tension de bande de la bande plate (4) sur un trajet de transport entre le dispositif de structuration de bande plate (12) et le dispositif de préformation de bande plate (26).
EP23732964.4A 2022-06-29 2023-06-16 Machine dans l'industrie de transformation du tabac pour la production d'une tige, et procédé de production d'une tige dans l'industrie de transformation du tabac Pending EP4547045A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102022116184.6A DE102022116184A1 (de) 2022-06-29 2022-06-29 Maschine der Tabak verarbeitenden Industrie zum Herstellen eines Strangs sowie Verfahren zum Herstellen eines Strangs der Tabak verarbeitenden Industrie
PCT/EP2023/066238 WO2024002720A1 (fr) 2022-06-29 2023-06-16 Machine dans l'industrie de transformation du tabac pour la production d'une tige, et procédé de production d'une tige dans l'industrie de transformation du tabac

Publications (1)

Publication Number Publication Date
EP4547045A1 true EP4547045A1 (fr) 2025-05-07

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EP23732964.4A Pending EP4547045A1 (fr) 2022-06-29 2023-06-16 Machine dans l'industrie de transformation du tabac pour la production d'une tige, et procédé de production d'une tige dans l'industrie de transformation du tabac

Country Status (6)

Country Link
EP (1) EP4547045A1 (fr)
JP (1) JP2025520545A (fr)
KR (1) KR20250033244A (fr)
CN (1) CN119486611A (fr)
DE (1) DE102022116184A1 (fr)
WO (1) WO2024002720A1 (fr)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018211097A1 (fr) 2017-05-18 2018-11-22 Philip Morris Products S.A. Procédé et appareil pour former une tige pour un article de génération d'aérosol à partir d'une feuille de matériau

Family Cites Families (9)

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Publication number Priority date Publication date Assignee Title
US4170347A (en) 1977-06-22 1979-10-09 E. I. Du Pont De Nemours And Company Web pleater
US4807809A (en) 1988-02-12 1989-02-28 R. J. Reynolds Tobacco Company Rod making apparatus for smoking article manufacture
WO2014068703A1 (fr) * 2012-10-31 2014-05-08 日本たばこ産業株式会社 Machine à fabriquer des tubes de papier, procédé de fabrication de ces derniers et tube de papier fabriqué par ledit procédé de fabrication
PL2772146T3 (pl) * 2013-02-28 2019-03-29 Hauni Maschinenbau Gmbh Urządzenie, sposób i maszyna do wytwarzania kabla filtrowego przemysłu przetwórstwa tytoniu
DE102013222240A1 (de) * 2013-10-31 2015-04-30 Hauni Maschinenbau Ag Einrichtung zur Herstellung eines Filterstrangs und Maschine der Tabak verarbeitenden Industrie
DE102014011542A1 (de) * 2014-08-08 2016-02-11 Hauni Maschinenbau Ag Transportdüse für eine Vorrichtung zur Herstellung von Filterstäben für die Tabakverarbeitende Industrie und Vorrichtung zur Herstellung von Filterstäben für die Tabakverarbeitende Industrie
KR101883124B1 (ko) * 2014-08-13 2018-07-27 필립모리스 프로덕츠 에스.에이. 다공도 분포가 제어된 에어로졸 형성 기재로서 사용하기 위한 로드를 제조하는 방법
WO2018229086A1 (fr) 2017-06-15 2018-12-20 Philip Morris Products S.A. Procédé et appareil de fabrication de tiges de formation d'aérosol pouvant être chauffées par induction
ES2985216T3 (es) 2018-02-15 2024-11-04 Philip Morris Products Sa Método y aparato para doblar una trama de material

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018211097A1 (fr) 2017-05-18 2018-11-22 Philip Morris Products S.A. Procédé et appareil pour former une tige pour un article de génération d'aérosol à partir d'une feuille de matériau

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JP2025520545A (ja) 2025-07-03
KR20250033244A (ko) 2025-03-07
CN119486611A (zh) 2025-02-18
WO2024002720A1 (fr) 2024-01-04
DE102022116184A1 (de) 2024-01-04

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