DE102018133156A1 - Manufacturing process of an inductively heatable tobacco product - Google Patents

Abstract

A method for producing inductively heatable tobacco products (1), the method comprising the following steps: - providing a tobacco product (1); - Providing a susceptor segment (2), the susceptor segment (2) comprising a longitudinal axis (LA) and a cross section (QS) arranged transversely to the longitudinal axis; - Increasing the axial area moment of inertia of the cross section (QS) of the susceptor segment (2), in particular by changing the shape of the cross section, preferably by a stamping or rolling process; - Positioning the susceptor segment (2) in the tobacco product (1) by moving the susceptor segment (2) and the tobacco product (1) relative to each other, whereby the susceptor segment (2) is introduced into the tobacco product (1).

Description

The present invention relates to a method and a device for producing inductively heatable tobacco products for use in inductive heating devices.

Electronic heating devices are known from the prior art which heat an aerosol-forming substrate by means of a resistance heating element. Before use, a smoking article is inserted into a cavity of the heater and thereby the aerosol-forming substrate is pushed over a heated blade of the heater. Such smoking articles are not suitable or are only suitable for use in inductive heating devices to a limited extent.

In an inductive heating device, an induction source generates an alternating electromagnetic field, which induces a voltage in a susceptor. The induced voltage creates eddy currents within the susceptor material and this leads to the development of heat. The susceptor must be in thermal proximity to the aerosol-forming substrate, for example a tobacco substrate, in order to heat the aerosol-forming substrate and thus to release the volatile compounds.

In the WO 2016 184 930 A1 discloses an apparatus and a method which inserts a susceptor material in the form of a metallic plate with a rectangular cross section into the tobacco segment of finished smoking articles, so that these smoking articles can be heated and consumed by means of an induction heating device.

A force is required when inserting a metallic plate into a tobacco segment. If the force that acts on the metal plate becomes too great, the plate can bend, kink or break. This can result in incorrect positioning of the susceptor segment within the tobacco segment or damage to the wrapping paper or the entire segment, as well as disruptions in the process sequence, which can impair the operation of the processing machines.

The object of the present invention is to provide a method and a device which ensure that a susceptor material is inserted into a tobacco product in a positionally accurate and error-free manner and which permits largely trouble-free manufacture.

• - Bereitstellen eines Tabakprodukts;
• - Bereitstellen eines Suszeptorsegments, wobei das Suszeptorsegment eine Längsachse (LA) und einen quer zur Längsachse (LA) orientierten Querschnitt (QS) mit einem axialen Flächenträgheitsmoment umfasst;
• - Erhöhen des axialen Flächenträgheitsmoments des Querschnitts (QS) des Suszeptorsegments, insbesondere durch eine Formveränderung des Querschnittes, bevorzugt durch einen insbesondere verformenden Stanz- und/oder Walzprozess;
• - Positionieren des formveränderten Suszeptorsegments in dem Tabakprodukt durch Bewegen des Suszeptorsegments und des Tabakprodukts relativ zueinander, wodurch das Suszeptorsegment in das Tabakprodukt eingeführt, insbesondere gedrückt wird.

The object is achieved by a method for producing inductively heatable smoking products, the method comprising the following steps:

• - providing a tobacco product;
• - Providing a susceptor segment, the susceptor segment having a longitudinal axis ( LA ) and one transverse to the longitudinal axis ( LA ) oriented cross section ( QS ) with an axial area moment of inertia;
• - increasing the axial area moment of inertia of the cross section ( QS ) of the susceptor segment, in particular by a change in shape of the cross section, preferably by a particularly deforming stamping and / or rolling process;
• - Positioning the shape-modified susceptor segment in the tobacco product by moving the susceptor segment and the tobacco product relative to each other, whereby the susceptor segment is inserted into the tobacco product, in particular pressed.

The method enables a susceptor segment to be inserted in a simple and reliable manner into a tobacco product which is already covered with wrapping paper and forms a rod-shaped article. Knowing the susceptor segment into the tobacco-containing segment, which is known from the prior art, has the disadvantage that a counterforce acts on the susceptor segment, which can bend or kink this segment. This deficiency is reliably eliminated by the method step of increasing the axial area moment of inertia of the cross section and the associated increase in the rigidity of the susceptor segment. The susceptor segments can thus be positioned in the tobacco-containing segment with greater accuracy and less damage.

• - Bereitstellen eines Tabakprodukts;
• - Bereitstellen eines Suszeptormaterials, wobei das Suszeptormaterial eine Längsachse (LA) und einen quer zur Längsachse (LA) orientierten Querschnitt (QS) mit einem axialen Flächenträgheitsmoment umfasst;
• - Erhöhen des axialen Flächenträgheitsmoments des Querschnitts (QS) des Suszeptormaterials, insbesondere durch eine Formveränderung des Querschnittes, bevorzugt durch einen insbesondere verformenden Stanz- und/oder Walzprozess;
• - Zerteilen des Suszeptormaterials in mehrere Suszeptorsegmente,
• - Positionieren eines der mehreren Suszeptorsegmente in dem Tabakprodukt durch Bewegen des Suszeptorsegments und des Tabakprodukts relativ zueinander, wodurch das Suszeptorsegment in das Tabakprodukt eingeführt, insbesondere gedrückt wird.

As an alternative to the method listed, the task is also performed by a method for producing inductively heatable smoking articles, the method comprising the following steps:

• - providing a tobacco product;
• - Providing a susceptor material, the susceptor material having a longitudinal axis ( LA ) and one transverse to the longitudinal axis ( LA ) oriented cross section ( QS ) with an axial area moment of inertia;
• - increasing the axial area moment of inertia of the cross section ( QS ) of the susceptor material, in particular by a change in shape of the cross section, preferably by a particularly deforming stamping and / or rolling process;
• - dividing the susceptor material into several susceptor segments,
• - Positioning one of the several susceptor segments in the tobacco product by moving the susceptor segment and the tobacco product relative to one another, whereby the susceptor segment is inserted into the tobacco product, in particular is pressed.

The two alternatives given relate to embodiments in which either a magazine with prefabricated susceptor segments or a susceptor material in the form of an endless strip, which preferably runs off a bobbin, is provided.

A preferred further development of the two methods is characterized in that increasing the axial moment of inertia of the susceptor segment or susceptor material along the longitudinal axis ( LA ) by means of an essentially constant, in particular identical or sectionally different change in shape of the cross section ( QS ) is carried out. This change in shape can advantageously be implemented since the susceptor material or the susceptor segments can be processed by a drum or a roller and since a correspondingly designed susceptor segment can be introduced into a tobacco product with little resistance.

So that the tobacco product heats up uniformly, the step of positioning the susceptor segment in the tobacco product preferably comprises positioning the susceptor segment in a central section of the tobacco product, preferably based on the length and / or the height and / or the width and / or the diameter of the tobacco product.

An advantageous cross section of the susceptor segment is characterized in that the cross section formed by the change in shape ( QS ) of the susceptor segment forms a positioning section which enables the susceptor segment to be received in a positionally stable manner, preferably transversely to the longitudinal extent of the susceptor segment. This positioning section can be implemented in the form of at least one elevation and / or lowering of the material formed in the longitudinal extent of the susceptor segment, preferably as a guide groove and / or spring.

The susceptor segment is advantageously guided on one or both sides, in particular over the entire surface, during the positioning step. Guiding the susceptor segment during insertion into the tobacco product prevents the segment from deflecting outside the tobacco product. The guidance of the segment ensures precise positioning of the segment when it is introduced into the tobacco product.

The length of the susceptor segment is particularly preferably smaller, greater than or equal to the length of a tobacco product. As a result, the susceptor segment can be fully positioned within the product. There are no protruding edges or ridges. If the length of the susceptor segment is greater than a segment to be heated, heat can be applied to an adjacent segment and / or a connection can be achieved in the manner of a dowel with an adjacent segment.

In order to facilitate the insertion or pressing into the tobacco product, the susceptor segment has a pointed and / or a cutting end and a second end opposite the first end. The susceptor segment is advantageously arranged in such a way that the pointed and / or provided with a cutting edge is directed against the tobacco product. This reduces the counterforce acting on the susceptor segment when it is inserted and prevents the segment from buckling or bending. In a preferred embodiment of the method, the formation of the segment with a pointed and / or with a cutting edge can be included as an explicit method step, in particular for processing the segment.

In order to accelerate the manufacturing process, in a preferred embodiment a multiplicity of tobacco products and a multiplicity of susceptor segments are provided for positioning, each of the susceptor segments being introduced into a corresponding tobacco product, in particular being positioned in front of a tobacco product and being pressed in or being able to be pressed in. This enables the process to be carried out quickly and efficiently with a large number of products.

If a large number of susceptor segments and a large number of tobacco products are provided, the relative movements each time the susceptor segment is pressed into the assigned tobacco product can be implemented individually or in succession in the positioning step, in particular each group of susceptor segments being simultaneously pressed into the assigned tobacco products will and a number of 2nd , 3rd , 4th , 5 , 6 or 8th Susceptor segments includes. As a result, the method can advantageously be implemented on a drum machine in the tobacco processing industry.

In an advantageous implementation of the method, the tobacco product is in a depression, in particular a trough, or the tobacco products are in a plurality of depressions, in particular troughs, are arranged and that a step of fixing the tobacco product in one depression, in particular a trough or the tobacco products in a plurality of depressions, in particular troughs, is provided by the provision of a holding element or a plurality of holding elements. The tobacco product is fixed or blocked by the holding element in order to prevent longitudinal axial and / or transverse axial displacement when the susceptor segment is pressed in.

The method is preferably implemented on a drum machine of the tobacco processing industry, so that the susceptor segments on a drum body are pressed into the tobacco products and this drum body 10 to 200 Troughs, preferred 20 to 100 Wells or particularly preferably 40 to 75 wells, for receiving the tobacco products. Alternatively, other conveying and processing devices, for example trough belts, can be used instead of the drum body.

The developments of the two methods listed represent individual developments of the general inventive concept and can be applied independently of one another to the two alternative methods.

The object is also achieved by a device for producing inductively heatable tobacco products comprising a first receiving section which comprises at least one depression, in particular a depression, for receiving at least one tobacco product.
a second receiving section with at least one receiving device for at least one susceptor segment,
wherein the susceptor segment comprises a longitudinal axis and a cross section arranged transversely to the longitudinal axis;
wherein the first receiving section or parts of the first receiving section and the second receiving section or parts of the second receiving section are designed to be movable relative to and against one another, and wherein the first receiving section and the second receiving section are arranged such that the at least one susceptor segment in the receiving of the second receiving section in the at least one tobacco product in the first receiving section during a relative movement between the first and the second receiving section or parts of the receiving sections can be inserted and positioned, characterized in that the device has a device for increasing the axial area moment of inertia of the cross section of the susceptor segment, in particular by a Change in shape of the cross section, preferably by a particularly deforming stamping or rolling process; includes. The increase in the axial area moment of inertia of the cross section of the susceptor segment prevents the susceptor segment from bending and / or bending when pressed into the tobacco product. The advantages of the embodiments of the device result analogously to the embodiments of the method.

In a preferred development of the device according to the invention, the device further comprises a fixing element for fixing the at least one tobacco product in the at least one depression or depression of the first receiving section, the fixing element ensuring the position of the tobacco product in the depression or depression, preferably also during the positioning of the susceptor segment in the tobacco product. A holding element can, for example, be a simple stopper, which is arranged on a distal end of a trough, for example on the distal end of a trough facing away from the second receiving section, so that a longitudinal movement of the tobacco product in the trough is limited by the stopper. The holding element can likewise comprise at least one trough for clamping the at least one tobacco product between the at least one trough of the first receiving section and the at least one trough of the holding element. The tobacco product can be fixed, in particular clamped, over its entire length in this pair of hollows.

A preferred embodiment of the device comprises the arrangement of the first receiving section and the second receiving section on a drum body of a machine of the tobacco processing industry, in particular which can be driven in rotation. In this way, the impression of the susceptor segment in the tobacco product can be integrated into the production process of the tobacco product. Preferably, either the first or the second receiving section or a part thereof is movably mounted. The moving parts of the receiving sections can be controlled either by electric motors or by cam gears.

Preferably, the first receiving section includes a plurality of troughs for receiving a plurality of tobacco products and the second receiving section comprises a plurality of receptacles for receiving a plurality of susceptor segments.

The plurality of receptacles of the second receptacle section particularly preferably corresponds to the plurality of depressions of the first receptacle section. The multiplicity of receptacles for the susceptor segments can, for example, be a multiplicity of flat receptacle surfaces for receiving platelet-shaped or strip-shaped susceptor segments. Preferably, the plurality of tobacco products that are fed to the device correspond to the plurality of susceptor segments that are fed to the device. If a large number of troughs and a large number of receptacles are provided, a large number of tobacco products, each with a susceptor segment, can preferably be provided simultaneously. This can improve the production of inductively heated tobacco products.

To prevent the transverse axial displacement of the susceptor segment, preferably at least one receptacle of the second receptacle section comprises a support surface for accommodating the at least one susceptor segment, the contour of the receptacle surface being shaped substantially corresponding to the contour of the susceptor segment, the susceptor segment preferably being under negative pressure, by a clamping mechanism and / or is held magnetically.
If the first receiving section has a plurality of depressions, the first receiving section can 10 to 200 Wells, preferably 20 to 100 Troughs, particularly preferred 40 to 75 Include wells for receiving the tobacco products. Accordingly, the second receiving section 10 to 200 , preferably 20 to 100 , more preferred 40 to 75 , Include recordings for receiving the susceptor segments.

Preferably, the pressing of the susceptor segment into the tobacco product is by a relative linear movement of the first receiving section and the second receiving section or by parts of the first receiving section and the second receiving section in a direction along the longitudinal axis of the at least one trough or in a direction parallel to the longitudinal axis of the implemented at least one trough. In this embodiment there is an advantageous design of the movement mechanism, so that only individual parts of the receiving sections are to be set in a relative movement.

To implement a fast and efficient production process, the device comprises a multiplicity of first receiving sections, each with at least one depression or depression, in particular a number of 2, 3, 4 or 5 depressions or depressions, and a multiplicity of second receiving sections, each with at least one, in particular comprises a number of 2, 3, 4 or 5 recordings, the relative movements of each pairing, consisting of a first recording section and a second recording section, taking place simultaneously or in succession and introducing the at least one susceptor segment into the at least one tobacco product, press in and / or position. Here, the pressing and positioning of the susceptor segment is carried out in small groups at the same time, which leads to an acceleration of the process and ensures a higher production output.

Analogously to the device described above, the susceptor segment can be inserted on a conveyor, processing or modified sliding drum within a manufacturing machine of the tobacco processing industry. Furthermore, a susceptor segment can be inserted on both sides into a tobacco product at the opposite ends of the tobacco product, as described, for example, in the German patent application with the application number 10 2018 114 404.0 is disclosed.

The term “tobacco product” as used in this application can refer to an aerosol-forming tobacco segment or tobacco-containing segment or a filter segment provided with an aerosol-forming liquid, which is provided with a susceptor segment in a device according to the invention and / or with the method according to the invention to form an inductively heatable tobacco product or inductively heatable tobacco segment. The “tobacco product” can also be a tobacco segment that is attached to a mouthpiece, which can optionally include a filter segment and / or further segments, for example cooling or spacing segments. The filter segment and other segments can be selected in accordance with the composition of the tobacco segment. The aerosol-forming tobacco segment and mouthpiece and possibly other segments can be assembled to form a structural unit. For example, the tobacco product can be an end product, that is, a ready-to-use consumable, such as an aerosol-producing smoking article, that can be used in combination with an electronic heater, such as an e-cigarette or an HnB smoking device.

The tobacco product preferably has a longitudinal extent and has a circular or oval cross section. However, the tobacco product can also have the cross section of a rectangle or a polygon. The tobacco product is preferably rod-shaped. The tobacco product is or comprises a tobacco segment made of an aerosol-forming tobacco substrate. Preferably, the aerosol-forming tobacco substrate contains volatile tobacco flavors which are released from the tobacco substrate when heated. The aerosol-forming tobacco substrate can comprise or consist of a mixed tobacco cut filler or can comprise homogenized tobacco material. Homogenized tobacco material can be formed by agglomerating particulate tobacco. The aerosol-forming substrate can additionally be a non-tobacco-containing one Include material, for example homogenized vegetable material that is not tobacco.

The aerosol-forming tobacco substrate is preferably a tobacco foil, preferably crimped, crimped, folded and / or gathered, comprising tobacco material, fibers, binders and aerosol formers. Preferably, the tobacco film is a cast film, in the form of reconstituted tobacco, made using a slurry, and containing tobacco particles, fiber particles, aerosol formers, binders, and optionally flavors. A crimped, gathered tobacco film, for example a cast film, can have a thickness in a range between about 0.5 millimeters and about 2 millimeters, preferably between about 0.8 millimeters and about 1.5 millimeters, for example 1 millimeter. Deviations in the thickness of up to about 30 percent can occur due to manufacturing tolerances. The crimped, gathered or folded tobacco foil can be shaped into a rod-shaped tobacco segment. The tobacco foil can also be cut into narrow, 0.5 to 3 mm wide, parallel strips and gathered into a rod-shaped article.

As used herein, the term "susceptor" refers to a variety of materials that are capable of converting electromagnetic energy into heat, and includes the terms "susceptor segment" and "susceptor material". If the susceptor or the susceptor segment is in an alternating electromagnetic field, eddy currents are induced which cause the susceptor segment to heat up. When the susceptor segment is in thermal contact or in close thermal proximity to the aerosol-forming tobacco substrate, the aerosol-forming tobacco substrate is heated by the susceptor segment such that an aerosol is formed. The susceptor segment is preferably arranged in direct physical contact with the aerosol-forming tobacco substrate, for example within the aerosol-forming tobacco substrate.

The susceptor can be formed from any material that can be inductively heated to a temperature sufficient to generate an aerosol from the aerosol-forming substrate. Preferred susceptor materials include a metal. A preferred susceptor may comprise or consist of a ferromagnetic material, for example a ferromagnetic alloy, ferritic iron, a ferromagnetic steel or stainless steel. A suitable susceptor can be or include aluminum. Preferred susceptor materials can be heated to a temperature of more than 250 degrees Celsius.

Suitable susceptor segments or materials can comprise a non-metallic core with a metal layer arranged on the non-metallic core, for example a metal-coated surface of a ceramic core. A susceptor material can have an outer protective layer, for example a protective ceramic layer or a protective glass layer. The susceptor material may include a protective coating formed from a glass, a ceramic, and / or an inert metal that encases the core of the susceptor material.

The susceptor can comprise several materials, in particular a first material and a second material. The first material is in direct physical contact with the second material. The second material preferably has a Curie temperature which is lower than 500 ° C. The first material is preferably used primarily to heat the susceptor segment when the susceptor segment is placed in a fluctuating electromagnetic field. Any suitable material can be used. For example, the first material can be aluminum or an iron material such as stainless steel. The second material is preferably used primarily to indicate when the susceptor segment has reached a certain temperature, which temperature is the Curie temperature of the second material. The Curie temperature of the second material can be used to regulate the temperature of the entire susceptor segment during operation. Therefore, the Curie temperature of the second material should be below the ignition point of the aerosol-forming substrate.

Suitable materials for the second material can include nickel and certain nickel alloys.

The first material is preferably a magnetic material with a Curie temperature that is above 500 ° C. From the point of view of heating efficiency, it is desirable that the Curie temperature of the first material be above any maximum temperature to which the susceptor segment should be heated. The second Curie temperature can preferably be chosen so that it is lower than 400 ° C, preferably lower than 380 ° C or lower than 360 ° C. The second material is preferably a magnetic material that is selected to have a second Curie temperature that is substantially equal to a desired maximum heating temperature.

That is, it is preferred that the second Curie temperature be approximately equal to the temperature to which the susceptor segment should be heated to receive an aerosol from that to produce aerosol-forming substrate. For example, the second Curie temperature can range from 200 ° C to 400 ° C or between 250 ° C and 360 ° C. The second Curie temperature of the second material can, for example, be selected such that when heated by the susceptor segment, which has a temperature that is equal to the second Curie temperature, a total average temperature of the aerosol-forming substrate of 240 ° C. is not exceeded.

According to a further aspect of the invention, an inductively heatable smoking article is provided for use in an induction heating device. The inductively heatable smoking article comprises or consists of an inductively heatable tobacco product which is produced in the device according to the invention or with the method according to the invention. The induction heatable smoking article comprises an induction heatable tobacco segment. The inductively heatable tobacco segment comprises an aerosol-forming tobacco substrate and a susceptor segment. In general, an inductively heatable smoking article is introduced into a cavity of the induction heating device, so that the susceptor segment in the tobacco segment heats up by a corresponding inductance of an energy supply electronics arranged in the induction heating device.

A tobacco segment (or tobacco product if no further segments or elements are provided) can have a segment length in a range between approximately 2 millimeters and approximately 20 millimeters, preferably between approximately 6 millimeters and approximately 15 millimeters, particularly preferably between approximately 8 millimeters and approximately 12 millimeters , in particular 10 millimeters or 12 millimeters.

The susceptor segment preferably has a length between approximately 2 mm and approximately 20 mm, more preferably between approximately 6 mm and approximately 15 mm, for example between approximately 8 mm and approximately 12 mm, such as approximately 10 mm or 12 mm.

The susceptor segment preferably has a length dimension which is greater than its width dimension and / or its thickness dimension, for example greater than twice its width dimension or its thickness dimension.

The susceptor segment can be a filament, rod, sheet or ribbon. If the susceptor segment has a constant cross-section, for example a circular cross-section, it has a preferred width or diameter between approximately 1 millimeter and approximately 5 millimeters. When the susceptor segment is in the form of a sheet or ribbon, the sheet or ribbon preferably has a substantially rectangular shape with a width preferably between about 2 mm and about 8 mm, more preferably between about 3 mm and about 5 mm, e.g. 4 mm, and a thickness preferably between approximately 0.03 mm and approximately 0.15 mm, particularly preferably between approximately 0.04 mm and approximately 0.1 mm or between 0.05 mm and approximately 0.09 mm, for example 0, 07 millimeters.

• 1 a Tabaksegment und Suszeptorsegment,
• 1 b Tabaksegment mit fehlerhaft eingeschobenem Suszeptorsegment,
• 2 a-I verschiedene Querschnittsform von Suszeptorsegmenten,
• 3 Tabakprodukt mit korrekt eingeschobenem Suszeptorsegment,
• 4 a-b Aufbau einer Trommelmaschine zum Einschieben eines Suszeptorsegments,
• 5 zweiter Aufnahmeabschnitt für das Suszeptorsegment
• 6 a-e Ausführungsformen von Suszeptorsegmenten mit geschärfter Schneide und/oder Spitze und
• 7 Einschiebe-Trommel zum Einschieben von Suszeptorsegmenten in Tabaksegmente

The invention is further described in terms of embodiments which are illustrated by the following drawings:

• 1 a Tobacco segment and susceptor segment,
• 1 b Tobacco segment with incorrectly inserted susceptor segment,
• 2 aI different cross-sectional shape of susceptor segments,
• 3rd Tobacco product with correctly inserted susceptor segment,
• 4 from Construction of a drum machine for inserting a susceptor segment,
• 5 second receiving section for the susceptor segment
• 6 ae Embodiments of susceptor segments with a sharpened cutting edge and / or tip and
• 7 Inserting drum for inserting susceptor segments into tobacco segments

1 a shows a tobacco segment 1 with a core of crimped tobacco foil, which is wrapped with wrapping paper, and a susceptor segment 2nd in the form of a metal plate, which has a cross section QS and a longitudinal axis LA includes. 1 b shows a damaged tobacco segment 1 , with the susceptor segment 2nd when inserted into the tobacco product has not withstood the back pressure caused by the crimped core, is bent and has damaged the tobacco-containing core and the wrapping material of the tobacco segment.

Based on the knowledge that the susceptor segment 2nd can bend in the form of an elongated metal plate when inserted into the tobacco product and damage the tobacco product, the cross-sectional shape of the susceptor segment 2nd adapted in such a way that the axial area moment of inertia increases. The corresponding cross-sectional shape causes the segment to bend and bend, as shown in 1 b is prevented. 2nd shows different cross-sectional shapes of a susceptor segment 2nd . The partial figures a to j show one-piece susceptor segments 2.1 and the sub-figures k and I show multi-part susceptor segments 2.2 . The cross-sectional shape is one increased rigidity and on the other hand, this shape can act as a transverse axial positioning aid when inserted into the tobacco segment. If the susceptor segment is located in a receiving section, the receiving section being adapted to the cross-sectional shape of the susceptor segment, this receiving section prevents the segment from moving axially axially when it is inserted into the tobacco product. This additional property of the changed cross-sectional shape of the segment is detailed in the exemplary embodiment according to 5 described.

So that the susceptor segment 2nd that as a heat source in a tobacco segment 1 is present, the heat evenly to the tobacco segment 1 can release and thus an efficient aerosol formation, it is advantageous the susceptor segment 2nd in the middle of the tobacco product 1 to insert. In 3rd is a domed susceptor segment 2nd shown that centered in a central section of a tobacco segment 1 is inserted. The center of gravity is preferably located here FS of the cross section QS of the susceptor segment 2nd on the center M of the round cross section of the tobacco segment 1 .

The basic structure of a drum machine 3rd the tobacco processing industry for the production of inductively heatable smoking articles, with a susceptor segment 2nd provided the cross-sectional area QS shape of the susceptor segment and into the tobacco segment 1 is inserted is in 4 a and b shown. It is a drum machine 3rd , for example a combiner or multi-segment maker. The drum machine shown 3rd ( 4 b) is in a right module 4th the preparation unit of the tobacco segments and a left module 5 that the susceptor segments 2nd provides and into the tobacco segments 1 inserts.

The process of deploying the tobacco segments 1 is in 4 a (I) shown, with the associated delivery module 4th for tobacco segments 1 in 4 b is shown and a storage memory 6 with rod-shaped articles 7 , preferably consisting of crimped or cut tobacco foil, which is provided with a wrapping material, for example paper, aluminum foil and / or aluminum vapor-coated paper. The rod-shaped articles 7 can have a length between 40 mm and 350 mm, preferably between 60 mm and 150 mm, particularly preferably 120 mm and a diameter between 5 mm and 9 mm, preferably between 6 mm and 8 mm, particularly preferably 7.9 mm or 7.2 mm have. From a rod-shaped article 7 become several tobacco segments 7.1 manufactured. From the drum 101 become the rod-shaped article 7 from the store 6 isolated and by the cutting knife 102 and 103 divided. The cutting knife 102.103 can consist of several rotating circular knives, which are arranged on a shaft, so that the rod-shaped article 7 in several segments 7.1 , in particular 2, 4, 5, 6 or 8, is cut. In a modified embodiment are in the drum machine 3rd to replace any waves with several circular knives by a corresponding number of waves with only one circular knife. The segments are on the following drums 104, 105 7.1 staggered and on the drums 106.107 shifted in a row. These segments are double long, form a conveyor line and are attached to the drum 108 to hand over. These steps are in 4 a ( 1.1 - 1.5 ). On the drum 108 become the segments 7.1 by another cutting device 109 in segments 1 divided and using a complaint device 122 , which can be formed, for example, as a wedge, spaced apart. The spacing can be between 2 mm and 30 mm, preferably between 6 mm and 10 mm, particularly preferably 8 mm. The spacing of the two tobacco segments has the advantage of being behind each segment 1 a stopper (not shown here) or a holding element can be present, so that the indentation process of the susceptor segment 2nd can be carried out without errors.

The 4 a (II) shows the provision of a susceptor segment 2nd ( 11.1 - 11.4 ), the deformation of the cross section QS of the segment 2nd ( II.5 ), the transfer to the insertion drum 123 by means of the transfer drum 121 and that position in the tobacco segment 1 by pushing in ( II.7 ). Through the conveyor and / or deflection rollers 111 to 113 becomes a susceptor material 8th , in this case a metal band from a running bobbin, which is not shown here, into the left module 5 the drum machine 3rd introduced, the pair of rollers 114 , 115 represents a pair of pull rollers for conveying the metal strip. Through the cutting device 110 the metal strip becomes axially axial in two lanes 9 and 10 cut up. The spacer 116 spaced the two tracks 9 , 10 in such a way that further processing can take place advantageously. The provision of the susceptor material 8th , or the two tracks 9 , 10 can be done using a bobbin, the metal band 31 lengthways in two metal strips 9 , 10 by means of a cutting device 110 is divided, or provided by two running bobbins, the processing step of cutting being omitted in the corresponding embodiment. On the processing drums 117 , 118 the two strips of material 9 , 10 in susceptor segments 2nd cut and isolated. A corresponding cutting and separating device can be analogous to a cutting and separating device for covering paper, for example according to the German patent application DE 10 2016 112 724 A1 , especially according to 4th , or for example according to the registration DE 10 2007 059 625 A1 , especially according to 1 , 4th and / or 5. The susceptor material 8th , for example in the form of a metal band 31 , is held on a roller by negative pressure or by a magnetic field and cut up by a cutting or punching device. The material web can be divided such that the length of the segments 2nd arises from the width of the material web, or that the width of the material web is the width of the susceptor segment 2nd forms. Alternatively, the dividing device with the drums 117 , 118 be replaced by another dicing device comprising a laser for cutting the susceptor material into susceptor segments. After going through the drums 117 , 118 the isolated susceptor segments to the drum 119 to hand over. The drums 119 , 120 act as a shape change unit covering the cross section QS of the susceptor segments 2nd in such a way that the axial area moment of inertia changes, here being the longitudinal axis of the susceptor segment 2nd meant, increased to when inserted into the tobacco segment 1 an overturn of the segment 2nd and / or to avoid damage. The punching or embossing process is achieved through the interaction of the drums 119 and 120 carried out. The susceptor segment is advantageous 2nd provided with a longitudinally axially extending recess, which preferably to the center of the drum body 119 is aligned. After delivery to the drum 121 ( II.6 ) shows the deepening of the susceptor segment 2nd due to the transfer to the following drum 121 , from the middle of the drum 121 path.

From the drum 108 come the tobacco segments arranged in pairs 1 on the drum 123 . On the drum 121 are the isolated susceptor segments 2nd arranged in pairs next to each other on two conveyor tracks and are attached to the insertion drum 123 that pass the paired susceptor segments 2nd into the tobacco segments, also arranged in pairs 1 inserts. The processing step of sharpening and / or sharpening the susceptor segment 2nd can be done, for example, by a laser device. By one on one side edge of the susceptor material 8th , 31 arranged device for sharpening the edge, a cutting edge can be formed, in particular a cutting edge sharpened on both sides. Some embodiments molded and / or with a cutting edge 16 provided susceptor segments 2nd are in 6 shown. Alternatively, this processing step can be carried out by further, in 4 b Device parts, not shown, in particular processing drums, are carried out.

The insertion of the susceptor segment 2nd in the tobacco product 1 is detailed in the 7 and shows a detailed embodiment of an insertion drum 123 .

On the drum 123 After the insertion process, the tobacco segments arranged in pairs next to each other are located 1 with the inserted susceptor segments 2nd which in pairs on the transport drum 124.1 be handed over. The modules can be used in a manufacturing process for a multi-segment product 4th , 5 the drum machine 3rd can be combined with other modules to produce a wide variety of multi-segment products. The conveyor drums 124.1 to 124.4 convey the tobacco segments 1 with susceptor segment 2nd or the intermediate products to the right edge of the drum machine 3rd or the module 4th for transfer to another module or a different processing, transport or packaging device. The direction of transport T can be changed as required and can be modified by modifying the modules 4th , 5 or the module arrangement also run from right to left. The direction of funding T can be both horizontal and at an angle α run. The drum machine 3rd and / or one of the modules 4th , 5 can a detection device, in particular designed as an eddy current measuring device according to the German patent application DE 10 2016 115 098 A1 , in the form of a metal detector, a microwave, X-ray or camera device, contain the location and existence of the susceptor segment 2nd within a tobacco product 1 checked. Another detection device can be used during the preparation or processing process of the susceptor segments 2nd the existence and goodness of the segments 2nd , especially the shape-changing segments. Faulty smoking articles or faulty intermediate articles are separated from the product stream by a discharge device.

The procedure for inserting a susceptor segment 2nd into a tobacco product 1 can be implemented in a drum machine of the tobacco processing industry. The mass flow, which is conveyed in particular in one layer, can move continuously and / or clocked in sections.

According to the invention, the device for inserting the susceptor segment has 2nd in the tobacco product 1 a first receiving section 20 for receiving the tobacco products and a second receiving section 11 to accommodate the susceptor segments 2nd . The susceptor segment 2nd has a contour 13 which essentially benefits the contour 12th of the second receiving section 11 corresponds. The susceptor segment 2nd is thus guided on one side, essentially over the entire surface and through this guide in a central section of the tobacco segment 1 can be positioned advantageously. A possible embodiment can be an insertion drum 123 with features from the German patent application with AZ 10 2018 104 956.0 be, among other things, a radial trough offset on the Lateral surface revealed. Here, the second receiving section 11 for the susceptor segment 2nd on the part of the almond surface that has a larger radius and the tobacco product 1 on the other part, which has the small radius. This ensures that the susceptor segment 2nd through the contour 12th of the second receiving section and is introduced into a central section of the tobacco product. The susceptor segment 2nd is through a holding device 19th , in particular an opening to which vacuum can be applied, on the second receiving section 11 held. This can be a magnetic holding device, a clamping device and / or a vacuum holder. The susceptor segment 2nd can be another form 17th included, which by a tongue, groove, increase or depression 18th in the second receiving section 11 is performed and a transverse axial displacement of the susceptor segment 2nd prevented. In particular, the contour 13 of the susceptor segment 2nd to the contour 12th the receiving surface 212 customized. Due to this coordinated shape, the susceptor segment lies 2nd preferably self-centering on the contact surface 212 . This is due to the preferably round shape of the recess of the susceptor segment 2nd and by deepening the receiving surface 212 that are essentially at the recess of the susceptor segment 2nd adapted, guaranteed. The susceptor segment 2nd has a pointed and / or with a cutting edge 16 provided first end 14 and a flat second end 15 , wherein the pointed and / or provided with a cutting edge 14 is directed to the tobacco product. The cross section QS is in the longitudinal axial direction along the longitudinal axis LA essentially constant. This enables easy indentation into the tobacco product 1 as well as an exact positioning during the impression.

The insertion of the susceptor segment 2nd can be facilitated by special design of the segment. In 6 a to d Different configurations of pointed and / or with a cutting edge of susceptor segments are shown. 6 a shows a rectangular metal plate 2nd , being the first end 14 sharpened and with a cutting edge 16 is provided. The 6 b shows a side view of the in 6 a shown sharpened susceptor segment 2nd . Sharpening and / or sharpening the susceptor segment 2nd can be integrated as an explicit process step in the process for producing an inductively heatable smoking article. 6 c also shows a susceptor segment 2nd with a sharpened cutting edge 16 , the segment additionally with a laterally arranged tip 28 is provided. The segment leads through this configuration 2nd when pressing into the tobacco segment 1 a pulling cut through, which allows easy penetration into the tobacco segment 1 is guaranteed. In 6 d is the top 28 middle and the cutting edge 16 is on both sides next to the tip 28 arranged. When the segment is inserted into the tobacco product, each of the two halves makes a pulling cut, which makes penetration easier. The cutting 16 can in addition to the execution in 6 a and b be sharpened on both sides. The tips are preferred 28 symmetrical to the longitudinal axis of the susceptor segment 2nd trained and it is preferable to have a cutting edge sharpened on both sides. This ensures a particularly advantageous insertion, since a shape-related displacement transverse to the direction of insertion is avoided. In the 6 shown susceptor segments 2nd are particularly with a change in shape of the cross section QS according to 2nd Mistake.

7 shows a slide-in drum 123 for inserting susceptor segments 2nd in tobacco products 1 , for example in a segment of crimped tobacco foil. The drum 123 comprises a first receiving section 20 to accommodate the tobacco products 1 and second receiving sections 11 to accommodate susceptor segments 2nd . Every second recording section 11 owns several recordings 22 for susceptor segments 2nd . In the embodiment shown are on the insertion drum 123 several second receiving sections 11 arranged via a cam mechanism, for example on a lateral surface within the drum 123 , being controlled. The receiving sections 11 are arranged on a linear guide rail, each receiving cut 11 three shots 22 includes. The number of shots 22 of the second receiving section 11 can for each shooting section 11 be different or identical, in particular 1, 2, 3, 4, 5 or at least 6 recordings 22 . An advantageous embodiment of a second receiving section 11 includes exactly two, three or four shots 22 , because the insertion of the susceptor segments 2nd in two, three or four tobacco products 1 can take place simultaneously, thus increasing the speed of the manufacturing process and being compatible with the requirements for implementation on drum machines in the tobacco processing industry. These shots 22 consist of a cantilever arm 23 and a bracket 30th to fix the susceptor segments 2nd . This fixation can be done by means of a receiving groove, clamping device and / or magnetic holder. The bracket 30th is designed such that a height adjustment of the insertion height of the susceptor segment 2nd can be done manually or automatically, for example, tobacco products 1 with different diameters, for example after a machine changeover.

In an alternative embodiment, the cantilever arms have 23 no bracket 30th for the susceptor segments 2nd , but insert the susceptor segment 2nd in the tobacco product 1 around without holding the segments. The susceptor segments 2nd are on a partial area of the tonsil surface of the drum body 123 held and guided in particular in a guide device, preferably in a guide groove. This holding can take place, for example, through the guide groove, magnetism and / or negative pressure. To insert the susceptor segment in the correct position 2nd in the tobacco product 1 to ensure, the lateral surface in this area of the drum body with a radial offset according to the German patent application with AZ 10 2018 104 956.0 be trained.

The first recording section 20 , which is also on the outer surface of the insertion drum 123 located, includes at least one trough 24th for one tobacco product each 1 that is on both sides with a side wall 25th and a holding element 21st , which in this case is designed as a stopper element, is provided and a longitudinal axial displacement of the tobacco product 1 by inserting the susceptor segments 2nd prevented. The hollows 24.1 - 24.3 of the first recording section 20 can group the respective second receiving sections 11 be assigned.

The segments can be driven by means of electric drives or a cam mechanism 2nd on the second receiving section relative to the first receiving section 20 be moved to insert the susceptor segments 2nd perform. The susceptor segments 2nd are advantageously shorter than the tobacco product 1 , so that the susceptor segments do not penetrate the tobacco product. This could have a negative impact on the further machining process. The susceptor segments 2nd are advantageously in a groove or guide 18th (in 7 not shown) and are guided during the insertion in order to move the segments axially 2nd to avoid. This leadership 18th can also be according to the in 5 shown part of the second receiving section 11 be trained. In the following method steps, this can advantageously be done with a susceptor segment 2nd provided tobacco product 1 can be combined with other segments to form a rod-shaped article, in particular according to the statements in the patent specification EP 2 996 504 B1 3rd or the published application WO 2017 153 443 1 and 2nd .

In the 7 The insertion drum shown pushes susceptor segments 2nd in tobacco products 1 on a single-lane conveyor line and is suitable for a single-lane manufacturing process. The drum machine in 4th shows a two-track conveyor line, each with two susceptor segments and two tobacco products 1 . The insertion drum 123 out 4th has two conveyor lines, for example by mirroring the insertion drum 123 in 7 on the left side wall 29 can be implemented or a combination of the in 7 embodiment shown with features from the German patent application with the file number 10 2017 127 593.2 , in particular features 1 - 4th , be. Here, two tracks of slides push the products or segments outwards from the center of the drum. The insertion drum 123 can according to 1 of the DE 10 349 967 A1 shifting drive types for the relative movement of the receiving sections 11 , 20 , in particular electrical drive means or a cam-controlled drive.

According to a further embodiment, the sliding drum can feature the European patent application EP1312270A1 included, in particular a detection and discharge device according to 1 and / or in particular sliding carriage according to 2nd .

Features of the exemplary embodiments listed can be replaced or combined with one another. For example, the inclusion of the susceptor segment 2nd out 3rd in the embodiment of the insertion drum 123 according to 7 to get integrated.

QUOTES INCLUDE IN THE DESCRIPTION

This list of documents listed by the applicant has been generated automatically and is only included for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Patent literature cited

• WO 2016184930 A1 [0004]
• DE 102016112724 A1 [0052]
• DE 102007059625 A1 [0052]
• DE 102016115098 A1 [0055]
• DE 102018104956 [0057, 0060]
• EP 2996504 B1 [0062]
• WO 2017153443 [0062]
• DE 102017127593 [0063]
• DE 10349967 A1 [0063]
• EP 1312270 A1 [0064]

Claims (18)

Method for producing inductively heatable smoking products (1), the method comprising the following steps: - Providing a tobacco product (1); - Providing a susceptor segment (2), the susceptor segment (2) comprising a longitudinal axis (LA) and a cross section (QS) oriented transversely to the longitudinal axis (LA) with an axial area moment of inertia; - Increasing the axial area moment of inertia of the cross section (QS) of the susceptor segment (2), in particular by a change in shape of the cross section, preferably by a particularly deforming stamping and / or rolling process; - Positioning the shape-modified susceptor segment (2) in the tobacco product (1) by moving the susceptor segment (2) and the tobacco product (1) relative to each other, whereby the susceptor segment (2) is inserted into the tobacco product (1), in particular pressed. Method for producing inductively heatable smoking products (1), the method comprising the following steps: - Providing a tobacco product (1); - Providing a susceptor material (2), the susceptor material (2) comprising a longitudinal axis (LA) and a cross section (QS) oriented transversely to the longitudinal axis (LA) with an axial area moment of inertia; - Increasing the axial area moment of inertia of the cross section (QS) of the susceptor material (2), in particular by a change in shape of the cross section, preferably by a particularly deforming stamping and / or rolling process; - dividing the susceptor material (8, 31) into several susceptor segments 2, - Positioning one of the several susceptor segments (2) in the tobacco product (1) by moving the susceptor segment (2) and the tobacco product (1) relative to each other, whereby the susceptor segment (2) is inserted into the tobacco product (1), in particular pressed. Procedure according to Claim 1 or after Claim 2 , characterized in that the increase in the axial area moment of inertia of the susceptor segment (2) or susceptor material (8, 31) along the longitudinal axis (LA) is carried out by means of an essentially constant, in particular identical or sectionally different shape change of the cross section (QS). Method according to one of the preceding claims, characterized in that the step of positioning the susceptor segment (2) in the tobacco product (1) comprises positioning the susceptor segment (2) in a central section of the tobacco product (1), preferably based on the length and / or the height and / or the width and / or the diameter of the tobacco product (1). Method according to one of the preceding claims, characterized in that the cross-section (QS) of the susceptor segment (2) formed by the change in shape forms a positioning section (17) which holds the position and / or centered the shape of the susceptor segment (2) in the positioning section 17 guaranteed. Method according to one of the preceding claims, characterized in that the susceptor segment (2) is guided on one or both sides, in particular over the entire surface, during the positioning step. Method according to one of the preceding claims, characterized in that the length of the susceptor segment (2) is less, greater than or equal to the length of a tobacco product (1). Method according to one of the preceding claims, characterized in that the susceptor segment (2) has a pointed and / or a first end (14) provided with a cutting edge (16) and a second end (15) opposite the first end (14) and the susceptor segment (2) is arranged such that the pointed and / or with a cutting edge (16) is provided with the first end (14) before or during positioning against the tobacco product (1). Method according to one of the preceding claims, characterized in that a multiplicity of tobacco products (1) and a multiplicity of susceptor segments (2) are provided for positioning, each of the susceptor segments (2) being introduced into a corresponding tobacco product (1), in particular in front of one The tobacco product (1) is positioned and pressed in or can be pressed in. Procedure according to Claim 9 , characterized in that the relative movements each time the susceptor segment (2) is pressed into the assigned tobacco product (1) in the positioning step are implemented individually or in groups, in particular each group of susceptor segments (2) simultaneously in the assigned tobacco products (1) is pressed in and comprises a number of 2, 3, 4, 5, 6 or 8 susceptor segments (2). Method according to one of the preceding claims, characterized in that the tobacco product (1) in a depression, in particular a depression (24) or the tobacco products (1) in a plurality of depressions, in particular depressions (24) are arranged and that a step of fixing the tobacco product (1) in a depression, in particular a depression (24) or the tobacco products (1) in a plurality of depressions, in particular depressions (24) by providing a holding element ( 21) or a plurality of holding elements (21). Inductively heatable smoking articles produced by a method according to one of the preceding Claims 1 to 11 . Device (3) for producing inductively heatable tobacco products (1) comprising a first receiving section (20) which comprises at least one depression, in particular a depression (24) for receiving at least one tobacco product (1), a second receiving section (11) with at least one receptacle (22) for at least one susceptor segment (2), the susceptor segment (2) comprising a longitudinal axis (LA) and a cross section (QS) arranged transversely to the longitudinal axis; wherein the first receiving section (20) or parts of the first receiving section (20) and the second receiving section (11) or parts of the second receiving section (11) are designed to be movable relative to one another and relative to one another, and wherein the first receiving section (20) and the second receiving section (11) are arranged such that the at least one susceptor segment (2) in the receptacle (22) of the second receptacle section (11) into the at least one tobacco product (1) in the first receptacle section (20) during a relative movement between the first and The second receiving section (20, 11) or parts of the receiving sections can be inserted and positioned, characterized in that the device (3) has a device (119, 120) for increasing the axial area moment of inertia of the cross section (QS) of the susceptor segment (2), in particular by a change in shape of the cross section, preferably by a particularly deforming stamping and / or rolling process; includes. Device after Claim 13 , characterized in that the device (3) further comprises a fixing element (21) for fixing the at least one tobacco product (1) in the at least one depression or depression of the first receiving section (20), the fixing element (21) the position of the tobacco product (1) in the depression or depression (24), preferably also during the positioning of the susceptor segment (2) in the tobacco product (1). Device after Claim 13 or 14 , characterized in that the first receiving section (20) and the second receiving section (11) are arranged on a drum body (123) of a drum machine (3) of the tobacco processing industry, which drum is particularly drivable. Device according to one of the Claims 13 to 15 , characterized in that at least one receptacle (22) of the second receptacle section (11) comprises a bearing surface (212) for receiving the at least one susceptor segment (2), the contour (12) of the receptacle surface essentially being of the cross section (QS) or Corresponds to the contour (13) of the susceptor segment (2) which is pressed into the tobacco product (1), the susceptor segment (2) or the susceptor segments (2) preferably being held by vacuum, by a clamping mechanism, by clamping mechanisms and / or magnetically or become. Device according to one of the Claims 13 to 16 , characterized in that the introduction of the susceptor segment (2) into the tobacco product (1) by a relative linear movement between the first receiving section (20) and the second receiving section (11) or between at least part of the first receiving section (20) and / or at least part of the second receiving section (11), preferably in a direction along the longitudinal extent of the at least one depression or depression (24) or in a direction parallel to the longitudinal extent of the at least one depression or depression (24). Device according to one of the Claims 13 to 17th , characterized in that the device (3) a plurality of first receiving sections (20) each having at least one depression or depression (24), in particular a number of 2, 3, 4 or 5 depressions or depressions (24), and a plurality of second receiving sections (11) each with at least one, in particular a number of 2, 3, 4, or 5, receptacles (22), the relative movements of each pairing consisting of a first receiving section (20) and a second receiving section ( 11), take place simultaneously or in succession and insert, press in and / or position the at least one susceptor segment (2) in each case in the at least one tobacco product (1).

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