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WO2024235695A1 - Machine de l'industrie de traitement du tabac, procédé de gaufrage d'une pièce plate, segment en forme de tige et article en forme de tige de l'industrie de traitement du tabac, dispositif de pincement - Google Patents

Machine de l'industrie de traitement du tabac, procédé de gaufrage d'une pièce plate, segment en forme de tige et article en forme de tige de l'industrie de traitement du tabac, dispositif de pincement Download PDF

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Publication number
WO2024235695A1
WO2024235695A1 PCT/EP2024/062404 EP2024062404W WO2024235695A1 WO 2024235695 A1 WO2024235695 A1 WO 2024235695A1 EP 2024062404 W EP2024062404 W EP 2024062404W WO 2024235695 A1 WO2024235695 A1 WO 2024235695A1
Authority
WO
WIPO (PCT)
Prior art keywords
embossing
crimping
roller
flat
flat part
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
PCT/EP2024/062404
Other languages
German (de)
English (en)
Inventor
Marwin BÜTOW
Sergej BONDARENKO
Stephan Wolff
Martina Stamer
Helmut Voss
Derk Van Hove
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
Priority claimed from DE102024100660.9A external-priority patent/DE102024100660A1/de
Application filed by Koerber Technologies GmbH filed Critical Koerber Technologies GmbH
Priority to CN202480032426.7A priority Critical patent/CN121127144A/zh
Publication of WO2024235695A1 publication Critical patent/WO2024235695A1/fr
Anticipated expiration legal-status Critical
Pending legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
    • A24B7/00—Cutting tobacco
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
    • A24B3/00—Preparing tobacco in the factory
    • A24B3/14—Forming reconstituted tobacco products, e.g. wrapper materials, sheets, imitation leaves, rods, cakes; Forms of such products
    • 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
    • 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
    • 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

  • Machine of the tobacco processing industry method for embossing a flat part, rod-shaped segment and rod-shaped article of the tobacco processing industry, crimping device
  • the invention relates to a machine of the tobacco processing industry, comprising a flat web provision device, a strand forming unit and optionally a crimping device or a separating device.
  • the invention further relates to a method for embossing a flat part, comprising the following steps: providing a flat web made of an aerosol-forming material of the tobacco processing industry, crimping the flat part, wherein crimp lines running in the longitudinal direction of the flat part are introduced, or separating the flat part into a plurality of strips, forming a strand of the tobacco processing industry from optionally the crimped flat part or from the plurality of strips.
  • the invention also relates to a rod-shaped segment of the tobacco processing industry, comprising aerosol-forming material of the tobacco processing industry, wherein the material is a crimped flat web, a flat web separated into a plurality of strips or a flat web shredded into small parts, wherein the flat web is a three-dimensional structure produced by embossing. structure.
  • the invention further relates to a rod-shaped article of the tobacco processing industry.
  • the invention relates to a crimping device.
  • Rod-shaped articles from the tobacco processing industry can be so-called heat-not-burn products (HNB products).
  • HNB products heat-not-burn products
  • Such articles are heated in a smoking device so that aroma substances escape from an aerosol-forming material from the tobacco processing industry into an air stream that can be made available to a consumer. No combustion takes place during this process.
  • the temperature of the aerosol-forming material is kept below the ignition temperature.
  • Tobacco-containing material can be used as the aerosol-forming material, for example reconstituted tobacco material (RECON), which is provided in the form of films or generally flat sheets, for example on reels.
  • RECON reconstituted tobacco material
  • a flat sheet made from a material from the tobacco processing industry does not necessarily have to contain tobacco material; it can also be made from corn.
  • the aerosol-forming material is usually provided with an aerosol-forming additive. Flavorings can also be added.
  • the aerosol-forming material is provided in a tobacco rod of a rod-shaped article.
  • tobacco rod is not to be understood as being limited to the use of tobacco material.
  • the tobacco rod is assembled in the rod-shaped article with other rod-shaped segments, such as filter segments, cooling sections or flavor-influencing segments, to form a ready-to-use rod-shaped article for the tobacco processing industry and is then fixed in place using a wrapping strip.
  • the flat sheet of tobacco used to produce the tobacco stick processing industry can, for example, be separated into a large number of individual strips with the aid of a separating device.
  • a separating device is known, for example, from DE 1 954 036 A1.
  • This separating device is a cutting device, because the flat sheet is cut lengthwise into parallel strips with the aid of a disk knife device. The strips are then combined into a strand and surrounded by a covering. The strand produced in this way is then cut into rod-shaped segments of the desired length and processed accordingly.
  • Another separating device with which a flat sheet of reconstituted tobacco material can be separated into a large number of strips is known from DE 10 2018 106 826 A1. With this device, the flat sheet is separated into individual strips along predetermined separating lines by overstretching the flat sheet locally and transversely to the separating line to such an extent that it tears apart along the separating line.
  • the tobacco rod can be made from a crimped and gathered flat sheet.
  • Crimp lines are first introduced into the flat sheet using a crimper.
  • the crimped flat sheet is then gathered transversely to its longitudinal direction, and then a strand is formed from the gathered flat sheet.
  • the gathering of the flat sheet is supported by the large number of crimp lines, which run at least approximately along the longitudinal direction of the flat sheet.
  • the crimp lines deliberately form local weak points within the flat sheet, so that it can be folded or gathered more easily along these crimp lines during gathering.
  • a device in which a flat sheet is crimped and then gathered to form a strand is known as an example from WO 2016/071267 A1.
  • a machine of the tobacco processing industry comprising a flat web supply device, a strand forming unit and optionally a) a crimping device or b) a separating device, wherein the flat web supply device is designed to provide a flat web made of a material of the tobacco processing industry, and a) if the machine comprises the crimping device, the crimping device has a first and a second crimping roller, each with a surface structured at least in sections in the transverse direction of the roller wherein the structured surfaces of the crimping rollers interlock in such a way that crimping lines running in the longitudinal direction of a flat part that can be passed between the crimping rollers can be introduced, b) if the machine comprises the separating device, the separating device comprises a first and a second separating roller, wherein the separating rollers interact in such a way that a flat part that can be passed between the separating rollers can be separated into a plurality of strips, wherein
  • the embossing device is arranged between the flat web supply device and optionally a) the crimping device or b) the separating device, wherein the flat part that can be passed through is the embossed flat web, and the crimping device is designed to introduce crimp lines running in the longitudinal direction of the embossed flat web as a flat part or the separating device is designed to separate the embossed flat web as a flat part into a plurality of strips, or
  • the embossing device is arranged optionally between a) the crimping device or b) the separating device and the strand forming unit, and a) if the machine comprises the crimping device, the flat part that can be passed through is the crimped flat strip, and the embossing device is designed to emboss a three-dimensional structure as a flat part on the crimped flat web, or b) if the machine comprises the separating device, the flat part that can be passed through is the plurality of strips, and the embossing device is designed to emboss a three-dimensional structure as a flat part on the individual strips of the plurality of strips.
  • the machine of the tobacco processing industry is flexible with regard to the material of the tobacco processing industry used or processed.
  • the material of the tobacco processing industry is an aerosol-forming material of the tobacco processing industry.
  • the material is a tobacco-containing material, for example reconstituted tobacco (RECON).
  • embossing the material provided in the form of a flat sheet wherein the embossing is carried out optionally before or after the flat sheet is crimped or before the flat sheet is separated into the plurality of strips or on the plurality of strips, the quality of a strand made from this material and thus also of the tobacco rod made from the strand can be improved.
  • the embossing gives the material improved properties.
  • the three-dimensional structure created by the embossing means that the individual parts, in particular the strips of the material present in the tobacco rod, hook into one another, thereby stabilizing the material in the longitudinal direction of the tobacco rod.
  • the protrusion of individual parts, for example strips, from a head end of the tobacco rod, and also in the opposite direction, can advantageously be at least reduced, if not prevented. Furthermore, the embossing increases the filling power of the material, which leads to a weight saving in the tobacco rod.
  • These advantageous product properties can be realized with the machine flexibly and thus advantageously for different materials from which the tobacco rod is constructed or manufactured. Both the flat strip and the crimped flat strip or the flat strip cut into strips can be processed accordingly. If the machine includes the crimping device, the first and second crimping rollers are each designed to be rotationally symmetrical, so that the crimping rollers can be used to introduce endless crimping lines into the flat part that can be passed through.
  • the embossing device includes, in particular, an embossing roller that is not designed to be rotationally symmetrical.
  • the three-dimensional structure that is embossed into the flat part by the embossing roller includes individual, in particular separate, elevations or embossings that are spatially limited. In the context of the present description, such a structure created by local deformation is to be referred to as a three-dimensional structure.
  • the machine is further developed in that it further comprises a pressure force sensor device which is designed to measure a contact pressure between the embossing roller and the counter bearing.
  • the embossing process can be monitored with regard to the desired quality, for example the intensity or height of the embossing.
  • Quality monitoring does not only affect the embossing process itself, but also includes indirect error detection.
  • By monitoring the contact pressure it can be monitored whether the embossing is always carried out with the desired embossing force or pressure, so that the desired intensity of the embossing is always achieved. On the basis of the measured value for the contact pressure, indirect monitoring of the production process can be realized.
  • the pressure measured on the embossing device increases within a very short time. This is the case because after at least one revolution of the embossing roller, to which the flat web or parts of it adhere, twice the material thickness runs into the embossing gap. At this moment, a very sudden, step-like or stair-like increase in the embossing pressure be detected. Such an event can very well be interpreted as an indication of the error described.
  • the production process can be checked and stopped if necessary.
  • adjusting the embossing pressure allows the embossing process to be adapted to fluctuating quality of the flat sheet, for example to fluctuations in the material thickness of the flat sheet.
  • the hardness or strength of the flat sheet can also be adjusted based on a measured value of the embossing pressure.
  • a soft and highly ductile flat sheet is generally easier to emboss than a correspondingly harder and less ductile material.
  • the measurement of the embossing pressure offers a variety of possibilities to improve or monitor the quality of the embossing process.
  • the machine is further developed in that the pressure force sensor device is designed to transmit a measured value of the contact pressure to a contact pressure processing unit, which is designed to evaluate the measured value, wherein the contact pressure processing unit is designed to issue a warning message when a predetermined or predefinable limit value for the contact pressure is exceeded or to reduce a contact pressure between the embossing roller and the counter bearing by means of a contact pressure adjustment device that is also included.
  • the counter bearing is in particular a counter roller.
  • the embossing device can therefore comprise an embossing roller and a counter roller that interacts with it.
  • the contact pressure is measured, for example, with one or more suitable pressure force sensors on the embossing device.
  • the measured value of the contact pressure can be made available to the machine control system so that it knows the current embossing pressure at all times.
  • the processing unit can therefore be implemented as part of the machine control system. If the contact pressure suddenly increases during ongoing production, the contact pressure can be reduced or a warning message can be issued after a corresponding predefined or predefinable limit value is exceeded. Based on the warning message, the production process can be stopped, for example.
  • different limit values are defined for different measures or actions. For example, when a first and lower limit value is reached, the contact pressure can initially be reduced. If the contact pressure exceeds a second and higher limit value or reaches the first limit value again despite a previous reduction in the contact pressure and in particular within a predeterminable period of time (i.e. there is a sudden increase in the contact pressure), production can be stopped or a corresponding warning message can be issued. An operator of the machine can stop production and the products produced during the shutdown time can be ejected.
  • a suitable pressure force sensor device is, for example, a so-called pneumatic bridge.
  • the machine is further developed in that it further comprises a distance measuring device which is designed to measure a distance between the embossing roller and the counter bearing in the gap between them to measure, and to transmit an associated measured value to a further included distance processing unit, further comprising a distance adjustment unit which is configured to change the distance between the embossing roller and the counter bearing, wherein in particular the distance processing unit is configured to control the distance adjustment unit such that the distance between the embossing roller and the counter bearing is set to a predetermined or predefinable target value.
  • a machine in a machine according to this embodiment it is possible to adjust the distance between the embossing roller and the counter bearing to the thickness of the material being processed. In this way, material fluctuations can be compensated and a constant embossing can be achieved even for flat webs with fluctuating material thickness.
  • the machine can be further developed according to a further embodiment in that it further comprises a material thickness measuring device which is set up to measure a material thickness of the flat web and to transmit an associated measured value to a further material thickness processing unit, wherein the material thickness processing unit is set up to evaluate the measured value for the distance between the embossing roller and the counter bearing as well as the measured value for the material thickness and to control the distance adjustment unit in such a way that the distance between the embossing roller and the counter bearing can be changed depending on the material thickness of the flat web.
  • a material thickness measuring device which is set up to measure a material thickness of the flat web and to transmit an associated measured value to a further material thickness processing unit, wherein the material thickness processing unit is set up to evaluate the measured value for the distance between the embossing roller and the counter bearing as well as the measured value for the material thickness and to control the distance adjustment unit in such a way that the distance between the embossing roller and the counter bearing can be changed depending on the material thickness of the flat web.
  • the material thickness measuring device can, for example, be an optical measuring device with which a material thickness of the flat sheet is measured in transmission. Specifically, an intensity of a transmitted light beam can be measured. Furthermore, alternatively or additionally, the passage of air through the material can be used for the thickness measurement. Such a measurement of air permeability or air passage is used, for example, for filter material which already has a high air permeability in its initial unembossed state.
  • the material thickness of the flat sheet is in particular a thickness of the flat sheet measured in a direction at least approximately perpendicular to a surface of the flat sheet.
  • the material thickness can also be an average thickness of the flat sheet measured over several different points on the flat sheet.
  • the machine is further developed in that the embossing device comprises a needle roller as an embossing roller, which interacts with the counter bearing in such a way that holes are made in the flat part when it is embossed.
  • the embossing roller can therefore be designed as a needle roller.
  • the counter roller which is provided as a counter bearing, for example, can be provided with grooves into which the needles of the needle roller dip.
  • both the embossing roller and the counter roller are needle rollers, which comprise both needles and grooves.
  • the needles of one roller engage in the grooves of the other roller, for example the needles of the embossing roller engage in the grooves of the counter roller and vice versa the needles of the counter roller engage in the grooves of the embossing roller.
  • an embossing device whose embossing rollers or whose embossing roller and counter bearing are designed as needle rollers, holes can be made in the flat part in a targeted manner.
  • a perforated material can be used to adjust a change in the air passage through the material in the finished product.
  • small craters are created locally, from which the material of the flat part is or is pressed out. This increases the likelihood that in the day bakstock the strips or the crimped material or fragments thereof interlock and thus the parts are immobilized against movements in the longitudinal direction of the tobacco rod.
  • the degree of perforation can be used to adjust physical parameters of the end product, such as its hardness or draw resistance.
  • the embossing roller can be dimensioned such that embossings with a predetermined height are produced.
  • the machine is further developed in that it has an embossing roller that interacts with the flat part to be embossed, which embosses the three-dimensional structure on the flat part, with these elevations rising with a height of between 5 pm and 300 pm from an at least approximately cylindrical surface of the embossing roller.
  • the specified height of the embossed elevations has proven to be advantageous in practice in order to effectively prevent longitudinal displacement of the strip-like material parts in the tobacco rod.
  • the elevations viewed in plan view of the lateral surface, have at least approximately a circular shape, wherein a diameter of the elevations is between 0.4 mm and 1.4 mm, in particular between 0.4 mm and 0.8 mm.
  • the elevations can be, for example, point-shaped elevations, cylindrical or crater-shaped elevations.
  • the diameter of the elevations is chosen so that it is smaller than a strip width or a crimp width, i.e. a distance between adjacent crimp lines. Otherwise, the embossing would create a predetermined breaking point in the material, which is something that should be avoided.
  • the machine further developed in that the embossing roller has at least a first section and a second section which is different therefrom, wherein in the first section there are elevations on the lateral surface which imprint the three-dimensional structure on the flat part, and in the second section there are no elevations on the lateral surface, so that no three-dimensional structure is imprinted on the flat part by the second section of the embossing roller.
  • embossing roller allows further flexibility of the manufacturing process and enables optimization of the product properties.
  • the machine is further developed in that the embossing roller comprises a height-adjustable core and outer spacer rings arranged on both end faces of the core, wherein the core, in cooperation with the counter bearing, locally deforms the flat part and thus imprints the three-dimensional structure thereon, and the spacer rings cooperate with the counter bearing in such a way that they define a minimum distance between the embossing roller and the counter bearing.
  • the spacer rings are designed similarly to the bearer rings known from printing technology. Unlike the bearer rings used in printing technology, however, the spacer rings primarily serve to maintain a distance or minimum distance between the core of the embossing roller and the counter bearing and not to provide mechanical drive through friction.
  • the adjustment of the central roller body can be possible and/or carried out in 0.5 pm increments, for example.
  • the embossing gap can be adjusted while maintaining a preset embossing pressure. Both the embossing pressure and the size of the embossing gap can be adjusted with feedback, for example depending on the material thickness of the flat part to be processed.
  • Another option for A feedback control is provided by measured values from a downstream quality evaluation of the embossing process, which is carried out on the basis of an embossing profile measurement. This will be explained in more detail below.
  • the machine is further developed in that it comprises an embossing roller monitoring device which is designed to detect adhesions of the flat part on a surface of the embossing roller, in particular in a region of the embossing roller which lies outside an interaction region with the counter bearing.
  • the embossing roller monitoring device is, for example, an optical monitoring device, and also, for example, an imaging camera system that interacts with an image evaluation device. With the help of such an optical monitoring system, it can be determined whether there are any adhesions on a surface of the embossing roller.
  • the machine comprises a cleaning device that interacts with the embossing roller.
  • This cleaning device is designed to remove adhesions of the flat part from the surface of the embossing roller, for example by means of suitable scraping elements.
  • the machine is further developed by an embossing device, wherein this comprises a first embossing roller, which cooperates with a first counter-bearing, and a second embossing roller, which cooperates with a second counter-bearing, wherein the first embossing roller and the first counter-bearing are designed to locally deform the flat part that can be passed between the first embossing roller and the first counter-bearing in such a way that a first three-dimensional structure is embossed thereon, and the second embossing roller and the second counter-bearing are designed to deform the flat part that can be passed between the second to locally deform the flat part that can be passed through the embossing roller and the second counter bearing in such a way that a second three-dimensional structure is embossed onto it.
  • an embossing device wherein this comprises a first embossing roller, which cooperates with a first counter-bearing, and a second embossing
  • the counter bearing applies to the first and second counter bearings; they are in particular counter rollers.
  • the first pair of rollers is arranged immediately upstream of the second pair of rollers.
  • the first and second three-dimensional structures can be different, i.e. produce different embossing patterns.
  • the possibility of creating two different embossing patterns in the flat part allows the manufacturing process to be made even more flexible.
  • the machine further comprises a web edge control for controlling a position of a web edge of the flat part immediately upstream of the embossing device, wherein the web edge control is designed to align the three-dimensional structure embossed into the flat part in such a way that, if the machine comprises the crimping device, the three-dimensional structure has a distance of 0.1 mm to 0.3 mm, to be determined transversely to the material flow direction, from crimp lines introduced into the flat part with the crimping device, and, if the machine has the separating device, the three-dimensional structure has a distance of 0.1 mm to 0.3 mm, to be determined transversely to the material flow direction, from a respective side edge of the strips produced with the strip separating device.
  • the embossing for example a single elevation which is part of the embossing pattern, can become a predetermined breaking point, for example of the strip material or a crimped flat part.
  • a corresponding web edge control can be provided. This is preferably arranged immediately upstream of the embossing device in such a way that As the flat part passes through, it can only be moved between the web edge control and the embossing device transversely to the conveying direction by an amount that is below a tolerance value. The embossing can therefore be placed effectively using the web edge control.
  • the values mentioned, by which the corresponding three-dimensional structures are spaced from the side edges, have proven to be advantageous in practice.
  • the machine further comprises an embossing profile measuring device which is designed to detect the three-dimensional structure introduced into the flat part by the embossing device, at least in sections.
  • the embossing profile measuring device is, for example, a camera unit, in particular a stereoscopic camera unit, a sensor for height profile measurement, for example a laser triangulation measuring device, each including appropriate evaluation units.
  • a sensor for height profile measurement for example a laser triangulation measuring device, each including appropriate evaluation units.
  • the embossing introduced with the embossing device can be recorded quantitatively and qualitatively. Based on the measured values recorded in this way, for example, a size of the embossing gap and/or an embossing pressure can be controlled and/or regulated, in particular with feedback.
  • a feedback control or regulation can also be carried out based on the measured value of a measuring device, wherein the machine according to a further embodiment comprises such a measuring device and this is designed to measure at least one physical parameter of the strand or of a rod-shaped article which is produced using a segment cut from the strand, in particular to measure a tensile resistance and/or a mechanical hardness of the strand or article, and based on the measured value thus recorded, a distance adjustment unit which is designed to change the distance between the embossing roller and the counter bearing, and/or a contact pressure adjustment device which is designed to change, control or regulate a contact pressure between the embossing roller and the counter bearing.
  • the tensile resistance or the mechanical hardness of a rod-shaped article can be measured as a physical parameter, for example. If this physical parameter is not in the desired parameter range, appropriate adjustment can be made, for example, by changing the width of the embossing gap or the embossing pressure.
  • the flat web provision device is designed to provide a first flat web made of a first material from the tobacco processing industry and a second flat web made of a second material from the tobacco processing industry, wherein the embossing device is arranged between the flat web provision device and optionally the crimping device or the separating device, and the flat part that can be passed through is a multi-layer flat web in which the first and the second flat web are arranged one above the other.
  • the combination of several flat sheets makes it possible, for example, to produce a heat-not-burn product which comprises a RECON film or another carrier material as the first material and a flavor carrier film as the second material, which contains, for example, nicotine, glycerin and/or propylene glycol.
  • the flavors and aromas can be introduced into this second material more easily than into the carrier material, which is why such a combination is desirable.
  • the second flat sheet for example a flavor carrier film such as a gel film or the like
  • the second flat sheet can be embedded between two separate partial sheets of the first flat sheet.
  • the first flat sheet can be folded lengthwise, with the second flat sheet being inserted into the resulting fold.
  • a gel film is wrapped in a RECON film so that RECON material is on the respective outside of the resulting composite.
  • the sometimes sticky flavor carrier film does not come into direct contact with the processing machine in this way.
  • embossing such a composite material When embossing such a composite material, a reliable connection is advantageously made between the first and the second material, for example between a RECON flat sheet and a gel flat sheet, which makes processing significantly easier.
  • the embossing force required for this and/or the size of the embossing gap can be increased slightly, for example, in contrast to the embossing of single-layer films.
  • the embossing device is used to connect an outgoing flat web to another flat web in the manner of a splicer.
  • the machine is further developed in that the embossing roller is mounted so as to be rotatable about a first embossing rotation axis and the counter bearing is mounted so as to be rotatable about a second embossing rotation axis and the embossing roller and/or the counter bearing ger are/is guided so as to be freely displaceable in a displacement direction transverse to the respective embossing rotation axis, further comprising an embossing pressure device which is set up to exert an embossing force counter to the displacement direction on the embossing roller and/or the counter bearing, so that the flat part can be subjected to the embossing force.
  • the machine comprises the crimping device
  • the first crimping roller is mounted so as to be rotatable about a first crimping rotation axis and the second crimping roller is mounted so as to be rotatable about a second crimping rotation axis and the first and/or the second crimping roller are/is guided so as to be freely displaceable transversely to their respective crimping rotation axis, further comprising a crimping pressure device which is designed to exert a crimping force on the first and/or the second crimping roller opposite to the direction of displacement, so that the flat part can be subjected to the crimping force.
  • the embossing pressure device and/or the crimping pressure device is, for example, a device or devices that are operated pneumatically or hydraulically.
  • the pressure devices can be actively controlled and/or regulated, they can also work purely passively, for example using one or more springs that provide the embossing force and/or the crimping force.
  • the embossing roller and/or the counter bearing and also the first crimping roller and/or the second crimping roller can be freely displaced against the embossing force or against the crimping force, in a direction opposite to the direction of displacement. Of course, the displacement has design limits.
  • the displacement takes place freely and unhindered as soon as the embossing force or the crimping force is overcome.
  • embossing device or crimping device it is advantageous for the devices to react flexibly to different material thicknesses of the flat part being processed.
  • the embossing roller and/or the counter bearing and, in the case of the crimping device, the first and/or the second crimping roller can flexibly give way if the corresponding embossing force or crimping force is exceeded.
  • the embossing or crimping of the compartment part is weaker in the section of increased material thickness, based on the total thickness of the material, which, however, has a beneficial effect on the production process. For example, the tearing of the flat part that often occurs with such material thickenings can be advantageously avoided.
  • the embossing pressure device and/or the crimping pressure device are/is designed to provide a predetermined, in particular an adjustable, constant, and furthermore in particular independent of a displacement position in the displacement direction, embossing force and/or crimping force.
  • the intensity of the embossing or crimping can be adjusted.
  • the embossing force and/or crimping force can be actively controlled and/or regulated, for example if the embossing pressure device and/or the crimping pressure device are operated pneumatically or hydraulically.
  • the embossing force and/or crimping force can be controlled or regulated, for example on the basis of a recorded measured value that is a measure of the embossing or crimping. Control or regulation based on product properties, for example of a rod-shaped article that has at least one segment that is made from or using the embossed or crimped flat part, can also be provided.
  • the stamping force and/or crimping force can be controlled or regulated depending on a tensile resistance.
  • the stamping force or crimping force which is constant regardless of the displacement position, allows the stamping or crimping device to react flexibly to or process different material thicknesses of the flat part and at the same time ensure uniform processing of the flat part (even with different material thicknesses).
  • the machines have an embossing stop and/or a crimping stop, wherein the embossing stop is designed to define a minimum distance between the embossing roller and the counter bearing, and wherein the crimping stop is designed to define a minimum distance between the first and the second crimping roller.
  • a corresponding stop defines a minimum embossing gap or crimping gap.
  • the embossing stop and/or the crimping stop are in particular adjustable or adjustable. The smaller the minimum gap width is set, the greater the maximum interaction of the embossing device and/or crimping device with the flat part.
  • the embossing force and/or crimping force acts against the corresponding stop at a minimum embossing distance and/or crimping distance.
  • the embossing stop can also be provided in particular by designing the embossing roller with a height-adjustable core and with spacer rings arranged on both end faces of the core.
  • An embossing stop can also be provided at another point in the construction.
  • the machine further comprises a material thickness measuring device with a displacement and/or force sensor which is designed to detect a displacement of the embossing roller, the Counter bearing, the first crimping roller and/or the second crimping roller and/or to measure a force exerted by the embossing pressure device and/or the crimping pressure device, wherein the material thickness measuring device is set up to determine a material thickness of the flat part from a measured value for a degree of displacement and/or a measured value for an exertable force.
  • a machine according to this embodiment can be used to determine the material thickness of the flat part directly during processing of the same.
  • An upstream or downstream sensor for detecting the material thickness can advantageously be dispensed with, which simplifies the design of the machine.
  • the force sensor used in the context of the aforementioned embodiment can in particular be the previously mentioned pressure force sensor device, which is designed to measure a contact pressure between the embossing roller and the counter bearing.
  • the measured value of the contact pressure can thus be processed in the material thickness measuring device according to the aforementioned embodiment.
  • the embodiments relating to the pressure force sensor device and the aforementioned embodiment relating to the material thickness measuring device can advantageously be combined with one another.
  • the displacement sensor can also be the distance measuring device mentioned above, which is designed to measure a distance between the embossing roller and the counter bearing in the gap between these two units.
  • the measured value recorded by the distance measuring device can therefore also be processed in the material thickness measuring device.
  • the embodiments mentioned above or related developments can also be advantageously combined with the previously mentioned embodiment relating to the material thickness measuring device.
  • the measuring device already mentioned above which is designed to measure at least one physical parameter of the strand or of a rod-shaped article that is produced using a segment cut to length from the strand, is designed to change an embossing force and/or crimping force.
  • a feedback control loop is provided in this regard in order to optimize, for example, the pressure resistance and/or mechanical hardness of the strand or article recorded as a physical parameter by the measuring device.
  • the previously mentioned embodiments relating to the measuring device can advantageously be combined with the previously mentioned embodiment relating to the material thickness measuring device.
  • a crimping device having a first crimping roller and a second crimping roller, each with a surface that is structured at least in sections in the transverse direction of the crimping roller, wherein the structured surfaces of the two crimping rollers engage with one another in such a way that crimping lines running in the longitudinal direction of a flat part that can be passed between the two crimping rollers, wherein the first crimping roller is mounted so as to be rotatable about a first crimping rotation axis and the second crimping roller is mounted so as to be rotatable about a second crimping rotation axis and the first and/or the second crimping roller are guided so as to be freely displaceable transversely to their respective crimping rotation axis, further comprising a crimping pressure device that is set up to exert a crimping force in the direction of the displacement direction on the first and/or the second crimping roller,
  • the same or similar advantages apply to the crimping device as have already been mentioned previously with regard to the machine comprising a crimping device with a movable first or second crimping roller, so that repetition will be omitted.
  • the crimping device also represents, in particular, an independent solution to the problem according to the invention.
  • the crimping device can advantageously be further developed in that the crimping pressure device is designed to provide a predetermined, in particular an adjustable, constant, and furthermore in particular independent of a displacement position in the displacement direction, crimping force.
  • the crimping device is further developed in that it further comprises a crimping stop, which is designed to define a minimum distance between the first and second crimping rollers.
  • the crimping device is further developed by a material thickness measuring device with a displacement and/or force sensor which is set up to measure a displacement of the first crimping roller and/or the second crimping roller and/or to measure a force that can be exerted by the crimping pressure device, wherein the material thickness measuring device is set up to determine a material thickness of the flat part from a measured value for a degree of displacement and/or a measured value for an exertable force.
  • the object is further achieved by a method for embossing a flat part, wherein this method is further developed by the following steps: providing a flat sheet made of an aerosol-forming material from the tobacco processing industry, a) crimping the flat part, wherein crimp lines running in its longitudinal direction are introduced into the flat part, or b) separating the flat part into a plurality of strips,
  • Forming a strand of the tobacco processing industry from either the crimped flat part or from the plurality of strips characterized by the following further steps: I.) Embossing the flat strip as a flat part before step a) of crimping or before step b) of separating into strips or
  • Embossing the plurality of strips as a flat part after step b) of separating wherein the embossing step is carried out with an embossing device in which at least one embossing roller interacts with a counter bearing and locally deforms the flat part during the embossing and produces a three-dimensional structure in the flat part, and wherein during the embossing step an area enlargement of the flat part takes place which is between 5% and 25%, in particular between 8% and 14%, or the three-dimensional structure produced during the embossing step is formed by elevations which have a height between 5 pm and 300 pm, in particular between 5 pm and 25 pm, and which rise by this height from an at least approximately flat surface of the flat part.
  • the process for embossing a flat part basically has the same or similar advantages as those already mentioned with regard to the machine in the tobacco processing industry, so there is no need to repeat them.
  • the other advantageous aspects and further development options mentioned with regard to the device also apply to the process in the same or similar way.
  • the method is further developed in that a contact pressure between the embossing roller and the counter bearing is measured.
  • the counter bearing can in turn be a counter roller.
  • the method is further developed in that a measured value of the contact pressure is evaluated and, if a predetermined or predeterminable limit value for the contact pressure is exceeded, a warning message is issued or a contact pressure between the embossing roller and the counter bearing is reduced by means of a contact pressure adjustment device.
  • a distance between the embossing roller and the counter bearing is measured in a gap existing between them and an associated measured value is processed, wherein a distance between the embossing roller and the counter bearing is changed, in particular the distance between the embossing roller and the counter bearing is set to a predetermined or predefinable target value.
  • This method can be advantageously further developed by further measuring a material thickness of the flat web and evaluating an associated measured value for the material thickness together with the measured value for the distance between the embossing roller and the counter bearing and, on the basis of these measured values, changing the distance between the embossing roller and the counter bearing depending on the material thickness of the flat web.
  • the Process in which holes are made in the flat part during embossing.
  • these holes lead to the formation of volcano-shaped elevations in the flat part.
  • the embossing roller is monitored to determine whether adhesions of the flat part are present on a surface of the embossing roller, in particular in an area of the embossing roller that lies outside an interaction area with the counter bearing.
  • the embossing step comprises a first and a second embossing step, wherein in the first embossing step a first three-dimensional structure is embossed and in the second embossing step a second three-dimensional structure different from the first is embossed.
  • the method is further developed in that a web edge control is carried out to control a position of a web edge of the flat part immediately upstream of the embossing step, the flat part is aligned with the web edge control in such a way that the three-dimensional structure embossed in the subsequent step is aligned in such a way that if the flat web is crimped as a flat part, the three-dimensional structure has a distance of 0.1 mm to 0.3 mm to be determined transversely to the material flow direction from crimp lines introduced into the flat web with the crimping device, and if the flat web is separated into strips, the three-dimensional structure has a distance of 0.1 mm to 0.3 mm to be determined transversely to the material flow direction from a respective side edge of the strips produced with the separating device.
  • the three-dimensional structure of the embossing is also recorded at least in sections. Furthermore, it is particularly provided that at least one physical parameter of the strand or of a rod-shaped article which is produced using a segment cut to length from the strand is measured, wherein in particular a tensile resistance and/or a mechanical hardness of the strand or article is measured, wherein, based on the measured value recorded, a distance between the embossing roller and the counter bearing is changed and/or a contact pressure between the embossing roller and the counter bearing is changed.
  • a first flat web made of a first material from the tobacco processing industry and a second flat web made of a second material from the tobacco processing industry are provided, and a multi-layer flat web is embossed in which the first and the second flat web are arranged one above the other.
  • the method is further developed in that the embossing step is carried out with an embossing device whose embossing roller is mounted so as to be rotatable about a first embossing rotation axis and whose counter-bearing is mounted so as to be rotatable about a second embossing rotation axis, wherein the embossing roller and/or the counter-bearing are/is guided so as to be freely displaceable in a displacement direction transverse to the respective embossing rotation axis, wherein the embossing device further comprises an embossing pressure device which exerts an embossing force in the direction of the displacement direction on the embossing roller and/or the counter-bearing, so that the flat part is subjected to the embossing force.
  • step a) of crimping is carried out with a crimping device which has a first crimping roller mounted so as to be rotatable about a first crimping rotation axis and a second crimping roller mounted so as to be rotatable about a second crimping rotation axis, wherein the first and/or the second crimping roller are/is guided so as to be freely displaceable transversely to their respective crimping rotation axis, wherein the crimping device further comprises a crimping pressure device with which a crimping force is exerted on the first and/or the second crimping roller in the direction of the displacement direction, so that the flat part is subjected to the crimping force.
  • the method is advantageously further developed in that the embossing pressure device and/or the crimping pressure device provide/provides a predetermined, in particular an adjustable, constant, and furthermore in particular independent of a displacement position in the displacement direction, embossing force and/or crimping force.
  • the embossing pressure device and/or the crimping pressure device further comprise an embossing stop and/or a crimping stop, wherein the embossing stop defines a minimum distance between the embossing roller and the counter bearing, and wherein the crimping stop defines a minimum distance between the first and the second crimping roller.
  • the embossing device and/or the crimping device has a material thickness measuring device with a displacement and/or force sensor, wherein the displacement sensor measures a displacement of the embossing roller, the counter bearing, the first crimping roller and/or the second crimping roller and/or the force sensor measures a force exerted by the embossing pressure device and/or the crimping pressure device and the material thickness measuring device determines a material thickness of the flat part from a measured value for a degree of displacement and/or a measured value for an exerted force.
  • a rod-shaped segment of the tobacco processing industry comprising aerosol-forming material of the tobacco processing industry, wherein the material is a) a crimped flat sheet, b) a flat sheet separated into a plurality of strips, or c) a flat sheet shredded into small parts, wherein the flat sheet has a three-dimensional structure produced by embossing, characterized in that the flat sheet has experienced an increase in area by the embossing which is between 5% and 25%, in particular between 8% and 14%, or the three-dimensional structure is formed by elevations which have a height between 5 pm and 300 pm, in particular between 5 pm and 25 pm, and which rise by this height from an at least approximately flat surface of the flat sheet.
  • the rod-shaped segment is particularly characterized by the fact that which are much less likely to slip in the existing structures, such as the crimped flat sheet or the multitude of strips, due to the three-dimensional embossed structure in a longitudinal direction of the rod-shaped segment. For this reason, the rod-shaped segment is particularly suitable for the production of heat-not-burn articles.
  • the rod-shaped segment is characterized by a three-dimensional structure, in particular in a plan view of a surface of the flat sheet, circular elevations which, if a) the material is a crimped flat sheet, measured transversely to a longitudinal direction of the flat sheet, have a distance to crimp lines present in the flat sheet of 0.1 mm to 0.3 mm, or if b) the material is a plurality of strips, measured transversely to a longitudinal direction of the strips, have a distance to a respective side edge of the strips of 0.1 mm to 0.3 mm.
  • the rod-shaped segment is further developed in that the material is a multi-layer flat sheet made of a tobacco-containing carrier flat sheet and a flavor carrier flat sheet provided with at least one additive, wherein in particular a tensile strength of the carrier flat sheet is greater than a tensile strength of the flavor carrier flat sheet.
  • a rod-shaped article for the tobacco processing industry comprising at least one rod-shaped segment according to one or more of the aforementioned embodiments.
  • the same or similar advantages also apply to the rod-shaped article as have already been mentioned previously with regard to the machine, the method and the rod-shaped segment, so that repetition is to be avoided.
  • Embodiments according to the invention can fulfill individual features or a combination of several features.
  • FIGS. 1 to 4 are schematic views of various embodiments of a machine in the tobacco processing industry
  • FIG. 5 is another schematically simplified view of a
  • FIG. 6 is a schematic side view of an embossing roller designed as a needle roller
  • FIG. 7 is a schematically simplified sectional side view of a lateral surface of an embossing roller rolled into a plane
  • FIG. 8 is a schematically simplified sectional plan view of the outer surface of an embossing roller
  • FIG. 9 is a schematically simplified view of an embossing roller and its counter bearing, viewed in the direction of material flow,
  • FIG. 10 is a schematically simplified side view of an embossing device with an embossing roller monitoring device
  • FIGS. 11 to 13 are schematic views of further embodiments of machines for the tobacco processing industry
  • FIG. 14 is a schematically simplified side view of an embossing device
  • FIG. 15 is a schematically simplified side view of a
  • Fig. 1 shows a schematic representation of a machine 2 of the tobacco processing industry, which comprises a flat web supply device 4, an embossing device 6, a crimping device 8 and a strand forming unit 10.
  • the flat web supply device 4 provides a flat web 12 made of a material of the tobacco processing industry.
  • the flat web 12 is wound on a reel 14, for example.
  • the reel 14 is received on a mandrel in the flat web supply device 4 and is unwound from the reel 14 by the flat web supply device 4.
  • the flat web supply device 4 comprises, for example, transport rollers (not shown).
  • the material from which the flat web 12 is made can be tobacco-containing or tobacco-free material.
  • the material can be provided with aerosol-forming additives such as glycerin and/or propylene glycol.
  • the flat web 12 should be made of reconstituted tobacco material (RECON).
  • the embossing device 6 comprises an embossing roller 16, which interacts with a corresponding counter bearing 18.
  • the counter bearing 18 is a counter roller.
  • the embossing roller 16 and the counter bearing 18 are designed to locally deform the flat webs 12 that can be guided through an embossing gap between the embossing roller 16 and the counter bearing 18 and to emboss a three-dimensional structure onto them.
  • the crimping device 8 comprises a first and a second crimping roller (not shown), each with a surface that is structured at least in sections in the transverse direction of the roller.
  • the structured surfaces of the crimping rollers engage with one another in such a way that crimping lines are introduced into the embossed flat sheet 20 that is guided between the crimping rollers and run in the longitudinal direction of the flat sheet.
  • the crimping lines facilitate and support gathering of the embossed and crimped flat sheet 22, for example at an inlet funnel 24 of the strand forming unit 10.
  • the strand forming unit 10 is designed to form a strand 28 for the tobacco processing industry from the embossed and crimped flat sheet 22 in a schematically indicated format channel 26.
  • the machine 2 further comprises a knife apparatus (not shown) which is designed to cut rod-shaped segments 30 from the strand 28 to length for the tobacco processing industry.
  • the rod-shaped segments 30 can be processed into rod-shaped articles in further devices and processing steps (not shown).
  • the rod-shaped segments 30 are often combined with other rod-shaped segments, for example a cooling section, a spacer element and a filter, for example to form an HNB article.
  • Fig. 2 shows another machine 2 of the tobacco processing industry, which is basically constructed similarly to the one known from Fig. 1.
  • Machine 2. Only the position of the embossing device 6 and the crimping device 8 are swapped.
  • the flat web 12 provided by the flat web supply device 4 is therefore first crimped in the crimping device 8, ie crimping lines running in the longitudinal direction of the flat web 12 are introduced into it. Further downstream, the crimped flat web 32 reaches the embossing device 6. This is used to emboss a three-dimensional structure into the crimped flat web 32.
  • the embossed and crimped flat web 22 then reaches the inlet funnel 24 of the strand forming unit 10 and is further processed, as already explained in connection with Fig. 1.
  • Fig. 3 shows a further schematic representation of a machine 2 in the tobacco processing industry.
  • a flat web 12 is provided by the flat web provision device 4.
  • the flat web 12 reaches the embossing device 6, as in the machine 2 shown in Fig. 1.
  • the embossed flat web 20 then reaches a separating device 34, not a crimping device 8, and in this respect the machine 2 shown in Fig. 3 differs from the machine shown in Fig. 1.
  • the separating device 34 comprises a first separating roller 36 and a second separating roller 38, which interact in such a way that the embossed flat web 20 passed between the separating rollers 36, 38 is separated into a plurality of strips 40.
  • the strips 40 are each embossed, i.e. they comprise a three-dimensional structure produced by local deformation.
  • the separating device can, for example, be designed as described in DE 10 2019 125 295 A1.
  • the strips 40 then enter the inlet funnel 24 of the strand forming unit 10 and are further processed in its format channel 26 to form a strand 28 for the tobacco processing industry.
  • the machine 2 shown in Fig. 3 can also comprise a knife apparatus (not shown) with which rod-shaped segments 30 for the tobacco processing industry are cut from the strand 28.
  • the rod-shaped segment 30 produced with the machine 2 shown in Fig. 3 does not comprise an embossed, crimped and gathered flat web, but rather a plurality of embossed strips 42.
  • This rod-shaped segment 30 can also be further processed, for example with further rod-shaped segments, to form an article of the tobacco processing industry, for example an HNB article.
  • Fig. 4 shows another machine 2 of the tobacco processing industry, which differs from the machine 2 known from Fig. 3 only in the arrangement of the embossing device 6 and the separating device 34.
  • a flat web 12 provided by the flat web supply device 4 first reaches the separating device 34.
  • the flat web 12 is separated into a plurality of strips 40.
  • the strips 40 reach the embossing device 6 further downstream.
  • the strips 40 are locally deformed so that they receive an embossed three-dimensional structure.
  • the embossed strips 42 reach the inlet funnel 24 of the strand forming unit 10 further downstream and are formed into a strand 28 of the tobacco processing industry in its format channel 26. Rod-shaped segments 30 can be cut to length from this strand 28.
  • Fig. 5 shows in a further schematic view a machine 2 of the tobacco processing industry, the basic elements of which have already been described in connection with the machine 2 of the tobacco processing industry shown in Fig. 3.
  • the embossing device 6 comprises a pressure force sensor device 44 with which a contact pressure between the embossing roller 16 and the counter bearing 18 can be measured.
  • the pressure force sensor device 44 is designed to transmit a measured value P of the contact pressure between the embossing roller 16 and the counter bearing 18 to a contact pressure processing unit 46.
  • the contact pressure processing unit 46 is designed to evaluate the measured value P. If a predetermined or predefinable limit value for the contact pressure P is exceeded, the contact pressure processing unit 46 issues a warning message.
  • the contact pressure processing unit 46 can also be designed to generate an actuating signal S, which is transmitted to a contact pressure adjusting device 48.
  • the contact pressure adjusting device 48 is designed to change a contact pressure between the embossing roller 16 and the counter bearing 18.
  • the control signal S can be designed such that the contact pressure between the embossing roller 16 and the counter bearing 18 is reduced at the moment the measured value P exceeds the predetermined limit value.
  • the machine 2 further comprises a distance measuring device 50, which is designed to measure a distance between the embossing roller 16 and the counter bearing 18 in the embossing gap between them.
  • the associated measured value A for this distance is transmitted to a further distance processing unit 52.
  • a distance adjustment unit 54 is designed to change the distance between the embossing roller 16 and the counter bearing 18.
  • a suitable control signal is again generated (not shown in Fig. 2) and transmitted to the distance adjustment unit 54.
  • the distance processing unit 52 can be designed to control the distance adjustment unit 54 such that the distance between the embossing roller 16 and the counter bearing 18 is set to a predetermined or predeterminable target value.
  • the machine 2 further comprises a material thickness measuring device 56, which is set up to measure a material thickness of the flat web 12.
  • a thickness of the flat web 12 can be measured in a direction that is at least approximately perpendicular to a surface of the flat web 12. It is also provided, for example, to measure the thickness of the flat web 12 at several different locations and to form an average value from these individual measured values, which is then regarded as the measured value M of the material thickness. This measured value M is transmitted to a material thickness processing unit 58.
  • the material thickness processing unit 58 is set up to evaluate the measured value A for the distance between the embossing roller 16 and the counter bearing 18 and the measured value M for the material thickness of the flat web 12 and to control the distance adjustment unit 54 such that the distance between the embossing roller 16 and the counter bearing 18 can be changed depending on the material thickness of the flat web 12.
  • Fig. 6 shows a schematic detailed view of the embossing device 6, as it can be used for embossing the flat web 12 or for embossing the strips 40.
  • the embossing roller 16 is designed as a needle roller 60 and interacts with the counter bearing 18 in such a way that holes can be made in the flat web 12 or the strips 40 during embossing.
  • the needles 62 of the embossing roller 16 engage in associated grooves 64 of the counter bearing 18.
  • Fig. 7 shows a schematic and simplified view of a surface 68 of the embossing roller 16 rolled out in a plane and shown in sections.
  • the embossing roller 16 has, for example, a surface 68 that extends in the surface of a cylinder.
  • the embossing roller 16 comprises elevations 66 that interact with the flat web 12 or the strips 40. These elevations 66 imprint the three-dimensional structure on the flat web 12 or the strips 40.
  • a first cylindrical elevation and a second hemispherical or point-shaped elevation 66 are shown as examples. These elevations 66 are arranged on the surface 68 of the embossing roller 16.
  • the elevations 66 have a height H, which lies between 5 m and 300 pm. This height H of the elevations 66 is measured between the at least approximately cylindrical surface 68 of the embossing roller 66 and the free upper end of the elevations 66.
  • Fig. 8 shows a schematically simplified section-by-section representation of the outer surface 68 of the embossing roller 16 in plan view.
  • the elevations 66 have at least approximately a circular shape, with their diameter D being, for example, between 0.4 mm and 1.4 mm, and also, for example, between 0.4 mm and 0.8 mm.
  • the embossing roller 16 is designed such that it has a first section 70 and a second section 72 that is different therefrom.
  • first section 70 which is shown as an example for the outer surface 68 of the embossing roller 16 in Fig. 8
  • the embossing roller 16 has elevations 66.
  • second section 72 for example, there are no elevations 66. It is thus possible to emboss a structure on the flat web 12 or the strips 40 with the first section 70 of the embossing roller 16, while no structure is embossed when the flat web 12 or the strips 40 come into contact with the second section 72 of the embossing roller 16.
  • Fig. 9 shows a schematically simplified view of the embossing roller 16 and the counter bearing 18 of the embossing device 6.
  • the embossing roller 16 comprises a height-adjustable core 74 and outer spacer rings 76 arranged on both end faces of the core 74. Between the core 74 and the counter bearing 18 is the embossing gap 78 through which the flat web 12 or the strips 40 are guided and in which they are locally deformed. The three-dimensional structure is embossed into these flat parts in the embossing gap 78.
  • the spacer rings 76 interact with the counter bearing 18 in such a way that they define a minimum distance between the core 74 of the embossing roller 16 and the counter bearing 18.
  • the core 74 is, as indicated by arrows, height-adjustable, so that a clear width of the embossing gap 78 can be adjusted. can be.
  • Fig. 10 shows a schematic side view of the embossing roller 16 and the counter bearing 18.
  • An embossing roller monitoring device 80 is also shown, which is a camera, for example.
  • the embossing roller monitoring device 80 is designed to detect adhesions, for example of the flat web 12 guided through the embossing gap 78 or the strips 40, on a surface of the embossing roller 16.
  • the embossing roller monitoring device 80 detects an area of the embossing roller 16 that lies outside the interaction area with the counter bearing 18.
  • Fig. 11 shows a further schematic representation of a machine 2 of the tobacco processing industry, the basic structure of which is described in connection with Fig. 3.
  • the embossing device 6 comprises a first embossing roller 16A, which interacts with a first counter bearing 18A.
  • a second embossing roller 16B Directly downstream is a second embossing roller 16B, which interacts with a second counter bearing 18B.
  • the first embossing roller 16A and the first counter bearing 18A are designed to locally deform the flat part, for example the flat web 12, passed between them in such a way that a first three-dimensional structure is embossed on it.
  • the second embossing roller 16B and the second counter bearing 18B are designed to subsequently emboss a second three-dimensional structure on the flat part, for example the flat web 12 or the strips 40.
  • the first and the second three-dimensional structure are in particular different.
  • Fig. 12 shows a further schematic representation of a machine 2 of the tobacco processing industry, the basic structure of which has also already been explained in connection with Fig. 3.
  • the flat web supply device 4 comprises a first flat web supply device 4A and a second flat web supply device 4B.
  • a first flat web 12A from a first material from the tobacco processing industry.
  • a second flat web 12B from a second material from the tobacco processing industry is provided on a second reel 14B.
  • the two flat webs 12A, 12B are combined to form a multi-layer flat web 12C.
  • This multi-layer flat web 12C is then processed in the same way as is explained for the single-layer flat web 12 in connection with Fig. 3.
  • the multi-layer flat web 12C in which the first and second flat webs 12A, 12B are arranged one above the other, is separated into individual embossed strips 42.
  • Fig. 13 shows another machine 2 from the tobacco processing industry, the design of which has also already been explained in connection with Fig. 3.
  • This machine 2 comprises a web edge control 82 for controlling a position of a web edge, for example the flat web 12.
  • the web edge control 82 is arranged directly upstream of the embossing device 6.
  • the web edge control 82 is designed in particular to align the flat web 12 or the strips 40 with the embossed structure so that the elevations of the three-dimensional structure produced maintain certain minimum distances from the edge of the flat web or the crimp lines or the side edges of the strips. If such a machine 2 is equipped with a crimping device 8, unlike the illustration in Fig.
  • the introduced structures have a distance of 0.1 mm to 0.3 mm from the crimp lines introduced by means of the crimping device 8.
  • the machine 2 comprises a separating device 34, the web edge control 82 is set up so that the structures introduced during the embossing maintain a distance of 0.1 mm to 0.3 mm from the respective side edge of the strips 40.
  • the machine 2 also comprises an embossing profile measuring device 84. This is set up, for example, to detect the three-dimensional structures present in the embossed flat web 20.
  • the machine 2 further comprises a measuring device 86 which is designed to measure at least one physical parameter of the strand 28 or of a rod-shaped article or segment 30 produced from this strand 28.
  • the physical parameter measured is, for example, the tensile resistance and/or a mechanical hardness of the strand 28, the article or the segment 30. Based on this measured value, the distance adjustment unit 54 (see Fig. 5), which is designed to change the distance between the embossing roller 16 and the counter bearing 18, and/or a contact pressure adjustment device 48, which is designed to change the contact pressure between the embossing roller
  • Fig. 14 shows an embossing device 6 according to a further embodiment.
  • the embossing device 6 comprises the embossing roller 16 and the counter bearing 18.
  • the embossing roller 16 is rotated about a first embossing rotation axis
  • the embossing roller 16 is designed to be displaceable in a displacement direction R.
  • the displacement direction R extends transversely to the first embossing rotation axis 17.
  • the displaceability of the embossing roller 16 is realized in that its embossing rotation axis 17 is arranged in a pivotably received holding element 90. It is pivotally attached in a static suspension, for example with the help of the bolt 92.
  • the displacement direction R should be assumed to be approximately a straight line, although strictly speaking it is a circular arc segment. Displacement mechanisms are conceivable in which linear displaceability is given.
  • the second embossing rotation axis 19 can alternatively or additionally be displaced, for example, in a further displacement direction opposite to the displacement direction R, transverse to the second embossing rotation axis 19. Only in the case of By way of example, reference is made to an embossing device 6 in which only the embossing roller 16 is designed to be displaceable.
  • the embossing device 6 further comprises an embossing pressure device 92, which provides an embossing force FP that acts in a direction that is opposite to the displacement direction R of the embossing roller 16.
  • an embossing pressure device 92 which provides an embossing force FP that acts in a direction that is opposite to the displacement direction R of the embossing roller 16.
  • the embossing roller 16 exerts the embossing force FP on the flat part 94 guided between the embossing roller 16 and the counter bearing 18.
  • the flat part 94 can be, for example, the flat web 12 or a plurality of strips 40.
  • the embossing pressure device 92 is designed to provide a predetermined, for example adjustable, constant embossing force FP, which is also independent of the displacement position in the displacement direction R. Regardless of the deflection of the holding element 90 in the displacement direction R, the embossing force FP provided by the embossing pressure device 92 is therefore always the same. If, for example, a flat part 94 runs through the processing gap between the embossing roller 16 and the counter bearing 18, which has a locally limited greater material thickness, the flat part 94 will exert a force in the displacement direction R on the embossing roller 16 in this section.
  • the embossing roller 16 If this force exceeds the embossing force FP, the embossing roller 16 is displaced in the direction of displacement R by pivoting the holding element 90. The embossing roller 16 is thus able to avoid the thickening of the material. The flat part 94 thus passes through the embossing device 6 without there being any risk of the material tearing off the flat part 94.
  • the embossing force FP provided by the embossing pressure device 92 is counteracted by an embossing stop 96.
  • the embossing stop 96 ensures a minimum embossing distance 98 between the embossing roller 16 and the counter bearing 18.
  • Machine 2 of the tobacco processing industry also includes a Material thickness measuring device 100, which is shown by way of example as part of the embossing device 6.
  • the material thickness measuring device 100 comprises a displacement and/or force sensor 102, which is shown by way of example as part of the embossing pressure device 92.
  • the displacement and/or force sensor 102 is designed to measure a displacement of the embossing roller 16 and/or to measure the force exerted by the embossing pressure device 92 on the embossing roller 16.
  • the force exerted by the embossing pressure device 92 can differ from the embossing force FP. If the embossing pressure device 92 is, for example, a hydraulic or pneumatic unit, the force exerted by the embossing pressure device 92 will initially increase when the holding element 90 is displaced in the direction of displacement R. This is regulated back to the constantly set and preselected embossing force FP by an active control or regulation. From this (temporary) increase in force, it can be concluded that the embossing roller 16 has been displaced in the direction of displacement R, similar to a displacement that can be detected, for example, with a distance sensor.
  • the material thickness measuring device 100 is further configured to determine a material thickness of the flat part 94 from a measured value that is a measure of the displacement and/or a measured value that is a measure of the force. This calculation can be carried out, for example, on the basis of a corresponding calibration measurement carried out beforehand.
  • the material thickness of the flat part 94 guided through the processing gap between the embossing roller 16 and the counter bearing 18 correlates directly with the measurable deflection or the force exerted.
  • the material thickness can advantageously be recorded directly during the processing of the flat part 94.
  • a material thickness sensor upstream or downstream of the processing station can advantageously be dispensed with.
  • Fig. 15 shows a schematically simplified side view of a crimping device 8.
  • the crimping device 8 comprises a first crimping roller 112 and a second crimping roller 114 which interacts with it.
  • the first crimping roller 112 is mounted so that it can rotate about a first crimping rotation axis 116.
  • the second crimping roller 114 is mounted so that it can rotate about a second crimping rotation axis 118.
  • the crimping rotation axes 116, 118 are, for example, suitable shafts.
  • the first crimping roller 112 is mounted so that it can be freely displaced in the direction of displacement R with its first crimping rotation axis 116 - similar to the embossing roller 16 described in connection with Fig. 14.
  • the displaceability is achieved by the first crimping rotation axis 116 of the first crimping roller 112 being mounted in the pivotably mounted holding element 90.
  • the holding element 90 is mounted so that it can pivot via the bolt 91 on a static fastening.
  • the second crimping roller 114 can alternatively or additionally be designed to be displaceable.
  • the first crimping roller 112 can be displaced transversely to its crimping rotation axis 116 in the direction of displacement direction R.
  • the crimping device 8 further comprises a crimping pressure device 120, which is also designed similarly to the embossing pressure device 92.
  • the crimping pressure device 120 provides a crimping force FC, which acts on the first crimping roller 112 against the direction of displacement R.
  • the first crimping roller 112 exerts the crimping force FC on the flat part 94, which is guided through the processing gap between the first and second crimping rollers 112, 114.
  • the flat part 94 can be a flat strip 12 or a plurality of strips 40.
  • the crimping pressure device 120 is designed to provide a predetermined, for example adjustable, constant, and also, for example, independent of the displacement position in the displacement direction R, crimping force FC.
  • the crimping stop 122 limits the movement of the first crimping roller 112 and defines a minimum crimping distance 124 between the first and second crimping rollers 112, 114.
  • the machine 2 of the tobacco processing industry further comprises a material thickness measuring device 100, which can be designed as part of the crimping device 8, for example.
  • the material thickness measuring device 100 comprises a displacement and/or force sensor 102, which is set up to measure a displacement of the first crimping roller 112 or a force exerted by the crimping pressure device 120.
  • the material thickness measuring device 100 is designed similarly to the material thickness measuring device 100 already explained in detail in connection with Fig. 14.
  • the force exerted by the crimping pressure device 120 does not necessarily temporarily correspond to the crimping force FC.
  • the crimping force FC is regulated to a constant value, especially if the crimping pressure device 120 is a hydraulic or pneumatic unit. If a flat part 94, which has a greater material thickness in sections, passes through the crimping device 8, the flat part 94 exerts a force on the first and second crimping rollers 112, 114. If this force overcomes the crimping force FC, the first crimping roller 112 is displaced in the displacement direction R.
  • the material thickness measuring device 100 is set up to determine a material thickness of the flat part 94 from a measured value that is a measure of the displacement. Likewise, an increase in the force can be used to determine the material thickness of the flat part 94.
  • the crimping device 8 shown in Fig. 15 can not only be designed as part of the machine 2 of the tobacco processing industry. It also represents an independent solution to the problem according to the invention.

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  • Machines For Manufacturing Corrugated Board In Mechanical Paper-Making Processes (AREA)

Abstract

L'invention concerne une machine (2) de l'industrie de traitement du tabac, un procédé de gaufrage d'une pièce plate, un segment en forme de tige (30), un article en forme de tige de l'industrie de traitement du tabac et un dispositif de pincement (8). La machine (2) de l'industrie de traitement du tabac comprend un dispositif de fourniture de bande plate (4), une unité de formation de boudin et, au choix, un dispositif de pincement (8) ou un dispositif de séparation (34). La machine (2) comprend en outre un dispositif de gaufrage (6) disposé sélectivement en amont ou en aval du dispositif de pincement ou de séparation (8 ; 34).
PCT/EP2024/062404 2023-05-15 2024-05-06 Machine de l'industrie de traitement du tabac, procédé de gaufrage d'une pièce plate, segment en forme de tige et article en forme de tige de l'industrie de traitement du tabac, dispositif de pincement Pending WO2024235695A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202480032426.7A CN121127144A (zh) 2023-05-15 2024-05-06 烟草加工业的机器、用于压印扁平件的方法、烟草加工业的棒状段和棒状制品、卷曲装置

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE102023112718.7 2023-05-15
DE102023112718 2023-05-15
DE102024100660.9A DE102024100660A1 (de) 2023-05-15 2024-01-10 Maschine der Tabak verarbeitenden Industrie, Verfahren zum Prägen eines Flachteils, stabförmiges Segment und stabförmiger Artikel der Tabak verarbeitenden Industrie, Crimpvorrichtung
DE102024100660.9 2024-01-10

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WO2024235695A1 true WO2024235695A1 (fr) 2024-11-21

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WO (1) WO2024235695A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US12479184B2 (en) 2022-11-11 2025-11-25 Boegli-Gravures Sa Method and tool for embossing of biodegradable paper to fabricate cigarette filters

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1954036A1 (de) 1968-10-28 1970-05-14 American Mach & Foundry Verfahren und Vorrichtung zur Herstellung von Zigaretten
US4047536A (en) * 1974-06-19 1977-09-13 Asfour Emil S Method of making cigarettes and a cigarette made according thereto
US20150033665A1 (en) * 2013-07-31 2015-02-05 G.D S.P.A. Embossing device
WO2016071267A1 (fr) 2014-11-03 2016-05-12 Philip Morris Products S.A. Procédé et appareil de fabrication d'une bande ondulée
DE102018106826A1 (de) 2018-03-22 2019-09-26 Hauni Maschinenbau Gmbh Vorrichtung und Verfahren zum Herstellen eines Strangs aus rekonditioniertem Tabakmaterial
DE102019125295A1 (de) 2019-09-19 2021-03-25 Hauni Maschinenbau Gmbh Vorrichtung und Verfahren zum Herstellen eines Strangs sowie aus diesem hergestellter Artikel der Tabak verarbeitenden Industrie
WO2021175807A1 (fr) * 2020-03-03 2021-09-10 Jt International Sa Produits consommables à base de mousse laminée
DE102020107421A1 (de) * 2020-03-18 2021-09-23 Hauni Maschinenbau Gmbh Vorrichtung und Verfahren zum Herstellen eines Strangs der Tabak verarbeitenden Industrie
EP4108108A1 (fr) * 2021-06-22 2022-12-28 Nerudia Limited Système de génération d'aérosol
WO2023281644A1 (fr) * 2021-07-07 2023-01-12 日本たばこ産業株式会社 Procédé de fabrication d'une feuille de matière première

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1954036A1 (de) 1968-10-28 1970-05-14 American Mach & Foundry Verfahren und Vorrichtung zur Herstellung von Zigaretten
US4047536A (en) * 1974-06-19 1977-09-13 Asfour Emil S Method of making cigarettes and a cigarette made according thereto
US20150033665A1 (en) * 2013-07-31 2015-02-05 G.D S.P.A. Embossing device
WO2016071267A1 (fr) 2014-11-03 2016-05-12 Philip Morris Products S.A. Procédé et appareil de fabrication d'une bande ondulée
DE102018106826A1 (de) 2018-03-22 2019-09-26 Hauni Maschinenbau Gmbh Vorrichtung und Verfahren zum Herstellen eines Strangs aus rekonditioniertem Tabakmaterial
DE102019125295A1 (de) 2019-09-19 2021-03-25 Hauni Maschinenbau Gmbh Vorrichtung und Verfahren zum Herstellen eines Strangs sowie aus diesem hergestellter Artikel der Tabak verarbeitenden Industrie
WO2021175807A1 (fr) * 2020-03-03 2021-09-10 Jt International Sa Produits consommables à base de mousse laminée
DE102020107421A1 (de) * 2020-03-18 2021-09-23 Hauni Maschinenbau Gmbh Vorrichtung und Verfahren zum Herstellen eines Strangs der Tabak verarbeitenden Industrie
EP4108108A1 (fr) * 2021-06-22 2022-12-28 Nerudia Limited Système de génération d'aérosol
WO2023281644A1 (fr) * 2021-07-07 2023-01-12 日本たばこ産業株式会社 Procédé de fabrication d'une feuille de matière première

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US12479184B2 (en) 2022-11-11 2025-11-25 Boegli-Gravures Sa Method and tool for embossing of biodegradable paper to fabricate cigarette filters

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