DE102018132628A1 - Device for producing rod-shaped products in the tobacco processing industry - Google Patents

Abstract

The invention relates to a device for producing rod-shaped products in the tobacco processing industry, with a tobacco foil shaping device (4), which is designed to essentially gather an essentially endlessly fed first tobacco foil web (2A) in its direction of movement (A), and a tobacco foil composite manufacturing device ( 10), which is designed to glue at least one essentially endlessly supplied web material (12) to the gathered first tobacco film web (2B) in such a way that a tobacco film composite arrangement (18) composed of the gathered first tobacco film web (2B) and the outside of the gathered first Tobacco film web (2B) adjacent web material (12) is formed. According to the invention, a separating device (22) is also provided, which is designed to discrete, elongate tobacco film composite elements (28) arranged one behind the other in the direction of movement (A) and extending in one direction at an angle or transversely to the direction of movement (A) subdivide, and a round shaping device (46) which is designed to provide the discrete elongate tobacco foil composite elements (28) with a substantially round cross section

Description

The invention relates to a device for the production of rod-shaped products of the tobacco processing industry, with a tobacco film shaping device which is designed to essentially gather an essentially endlessly fed first tobacco film web in the direction of its movement, and a tobacco film composite production device which is designed, at least one essentially to glue continuously supplied web material to the gathered first tobacco film web in such a way that a tobacco film composite arrangement results from the gathered first tobacco film web and the web material lying on the outside of the gathered first tobacco film web.

From the WO 2016/050873 A1 it is already known to gather a substantially endlessly supplied first tobacco foil web in the direction of its movement and thereby to provide it with an essentially undulating or essentially folded or kinked structure in the manner of an accordion, the resulting folding, kinking or Wavy lines are oriented transversely to the direction of movement of this tobacco foil web. Thus, in the present application, “gathering” is understood to mean a process by which the first tobacco foil web is pushed together in the direction of movement and thereby shortened, so to speak, and thereby from a substantially spread out and smooth state to an essentially corrugated or essentially folded or in the manner of an accordion kinked structure is transferred, each of which forms raised sections in the form of wave crests or tips on its top and bottom, the tips also being able to be designed as blunt tips. Accordingly, the top and bottom of the first tobacco foil web thus gathered form a virtual plane in which the wave crests or peaks lie. Furthermore, this process leads to the fact that the structure of such a folded, kinked or corrugated web has a greater thickness than the material thickness of the tobacco foil, which is defined by the distance between the top and the bottom.

To stabilize their structure, the WO 2016/050873 A1 furthermore before, in each case to glue the top and the bottom of the structure described above with a smooth further tobacco film by gluing the two further smooth tobacco films to the wave crests or tips. In this way, a tobacco foil composite arrangement with a sandwich-like structure is created. The adhesive is required to stabilize the tobacco foil composite arrangement.

It is an object of the present invention to develop a device of the type mentioned in the introduction in such a way that essentially full-fledged rod-shaped products of the tobacco processing industry can be produced.

This object is achieved with a device for producing rod-shaped products of the tobacco processing industry, with a tobacco foil shaping device which is designed to gather a substantially endlessly fed first tobacco foil web in the direction of its movement, and a tobacco foil composite manufacturing device which is designed with at least one to glue essentially endlessly fed web material to the gathered first tobacco foil web in such a way that a tobacco foil composite arrangement is formed from the gathered first tobacco foil web and the web material lying on the outside of the gathered first tobacco foil web, characterized by a separating device which is designed to arrange the tobacco foil composite arrangement one behind the other in the direction of movement to divide discrete, elongated tobacco foil composite elements which extend in an angular or transverse direction of movement, and a rounding device which a is formed to provide the discrete elongated tobacco foil composite elements with an essentially round cross section.

With the aid of the device according to the invention, it is now possible in a structurally simple manner to produce tobacco films essentially full-fledged rod-shaped products of the tobacco processing industry, which are particularly suitable for the formation of “heat-not-burn” sticks. This is achieved in accordance with the present invention in that the tobacco foil composite arrangement is divided with the aid of a separating device, preferably designed as a cross cutter, into discrete elongated tobacco foil elements arranged one behind the other in the direction of movement and extending in one direction at an angle or transverse to the direction of movement, the cross section of which is then divided by a rounding device is converted from an angular, in particular rectangular or square, shape into an essentially round shape.

The at least one web material can preferably, but not necessarily, be a further tobacco film web or non-laminated or laminated, in particular aluminum-laminated, paper or comparable material.

Preferred embodiments and developments of the invention are specified in the dependent claims.

For a particularly effective gathering and the essentially folded, kinked or undulating structure obtained as a result Tobacco film shaping device is designed to provide the first tobacco film web with a structure which has an alternating sequence of elongate first and second sections lying next to one another in the direction of movement and extending in one direction at an angle or transversely to the direction of movement and in a direction transverse to the plane of the first tobacco film web in the Height offset from each other.

The tobacco foil shaping device is expediently designed to provide the first tobacco foil web with angled or transverse to the folds, kinks and / or waves running in the direction of movement.

A further preferred embodiment of the invention is characterized in that the tobacco film shaping device has a pair of rollers which are rotatably mounted about an axis of rotation and form a passage area between them in which they can be brought into engagement with the first tobacco film web around the first tobacco film web to promote in their direction of movement, the circumferential surfaces of the two rollers in alternating succession adjacent and extending substantially parallel to the axis of rotation elongated first sections and raised compared to the first sections, extending substantially parallel to the axis of rotation elongated second sections, the first and second sections are formed on the lateral surface of the two rollers in such a way that a first section of one roller is adjacent to a second section of the other roller in the passage area. Thus, in this embodiment, the first tobacco film web is fed to two counter-rotating rollers which, due to the special design with first and second sections, introduce a gathered and thus folded, kinked and / or wavy structure into the first tobacco film web on their outer surface. In this case, the first and second sections are preferably arranged on the lateral surface of the two rolls in such a way that a first section of one roll comes into engagement with a second section of the other roll in the passage area. In order to achieve a folded, kinked and / or wave-shaped structure by the gathering process mentioned, the first sections and / or the second sections should preferably have the shape of a triangle, a trapezoid and / or a wave.

The tobacco film shaping device is preferably designed to convey the first tobacco film web at a first movement speed, and the tobacco film compound production device is designed to convey the tobacco film compound arrangement at a second movement speed that is lower than the first movement speed. The ratio of the movement speeds determines the degree of filling of the tobacco foil composite arrangement. The higher the speed of movement through the tobacco film shaping device compared to the speed of movement through the tobacco film composite production device, the more folds, kinks and / or waves can be generated per unit distance and the higher the degree of filling of the tobacco film composite arrangement. In this way, a certain additional influence on the gathering process can be attributed to the tobacco film composite production device downstream of the tobacco film shaping device.

The tobacco foil composite production device is expediently designed to bond the at least one web material in an essentially smooth state to the gathered first tobacco foil web, as a result of which particularly good stability can be achieved for the tobacco foil composite arrangement.

In a further preferred embodiment of the invention, the tobacco film composite production device is designed to feed the at least one web material in a state provided with adhesive on only one side to the gathered first tobacco film web such that the side of the at least one web material provided with adhesive comes into contact with the gathered first tobacco film web. In a further development of this embodiment, the tobacco film composite production device has at least one first roller, which can be brought into engagement with the adhesive-free side of the at least one web material and is arranged to bring the at least one web material with its side provided with adhesive into contact with the gathered first tobacco film web.

In order to achieve good stability of the tobacco foil composite arrangement, it is advantageous if the tobacco foil composite production device is designed to have the web material with one side of the gathered first tobacco foil web and another web material with the to glue the other side of the gathered first tobacco film web, wherein preferably the tobacco film composite production device is also designed to glue the further web material in an essentially smooth state to the gathered first tobacco film web.

In this embodiment, the tobacco film composite production device is expediently designed to feed the further web material in a state that is only provided with adhesive on one side to the other side of the gathered first tobacco film web such that the side of the further web material provided with adhesive comes into contact with the other side of the gathered first tobacco film web .

A further development of the embodiment mentioned above is characterized in that the tobacco film composite production device has a second roller which can be brought into engagement and arranged with the adhesive-free side of the further web material, the further web material with its side provided with adhesive in contact with the other side of the bring gathered first tobacco foil web, and the second roller is arranged opposite the first roller so that a passage area is formed between these two rollers through which the gathered first tobacco foil web to be glued to the web material can be moved.

As already mentioned above, the degree of filling of the tobacco film composite arrangement can be influenced by a different setting of the movement speeds by the tobacco film shaping device and the downstream tobacco film composite production device, which can be achieved with the previously specified further development in that the at least one roller of the tobacco film composite production device has a lower peripheral speed than that Rolling the tobacco film forming device is operable.

A drying device for drying the tobacco film composite arrangement is preferably provided between the tobacco film composite production device and the separating device, the drying device preferably having a drying shaft through which the tobacco film composite arrangement can be passed. The drying device has, in particular, the task of having the adhesive provided on the at least one web material set in the tobacco film composite arrangement, the heat input preferably being set to a minimum.

A spacing device is preferably provided between the separating device and the round shaping device, which is designed to increase the distance between the discrete elongate tobacco foil composite elements in the direction of movement. An increase in the distance between the discrete elongate tobacco film composite elements in the direction of movement and thus transversely to their longitudinal extension or longitudinal axis advantageously creates more space for the round shaping in the downstream round shaping device.

In a further development of this embodiment, the spacing device has a roller which is designed to receive the discrete elongate tobacco foil composite elements and is operated at a peripheral speed which is greater than the movement speed of the tobacco foil composite arrangement in order to increase the distance between the discrete elongate tobacco foil composite elements.

To produce a rod-shaped tobacco product provided with wrapping material, in particular wrapping paper, a wrapping material arrangement device is expediently provided between the spacing device and the round-forming device, which is designed to apply a wrapping material strip to a discrete elongate tobacco film composite element.

A preferred further development is characterized in that the wrapping material arrangement device has at least one conveying means that is designed, essentially endlessly supplied wrapping material provided on one side with adhesive in a direction of movement that corresponds to the direction of movement of the discrete elongate tobacco foil composite elements, and with a movement speed that corresponds to the movement speed corresponds to the discrete elongate tobacco foil composite elements, to transport, at least one arrangement means which is designed to apply the essentially endlessly supplied wrapping material with its adhesive-coated side to the discrete elongate tobacco foil composite elements and has at least one separating means which is designed to be applied to the tobacco foil composite elements applied wrapping material, viewed in the direction of movement, at such a distance behind the discrete elongate tobacco foil composite elements qu he to cut through to the direction of movement that on the discrete elongate tobacco film composite elements each have a wrapping material strip which has a section protruding rearward against the direction of motion and whose total width in the direction of movement corresponds to at least the entire circumferential length of the associated discrete elongate tobacco foil composite element. For this purpose, a roller is preferably used, which takes over the function of the arrangement means and which is expediently the aforementioned roller of the spacing device, so that during the spacing of the individual discrete elongate tobacco foil composite elements from one another, the wrapping material with its side provided with adhesive is arranged on the same becomes.

The separating agent, which preferably has a rotating knife roller, then separates the one which has been applied to the tobacco foil composite elements and has been fed essentially endlessly until then Wrapping material transverse to the direction of movement of the discrete elongate tobacco film composite elements in strip-shaped leaflets, the total width of which corresponds in the direction of movement to at least the entire circumferential length of the associated discrete elongate tobacco foil composite element. The release agent thus works as a cross cutter. The result of the separation process is that the wrapping material, which is initially applied continuously, is separated into wrapping material strips, of which one wrapping material strip in each case remains on a discrete elongate tobacco foil composite element. It is necessary that the entire width of the wrapping material strip in the direction of movement be selected so that it corresponds at least to the entire circumferential length of the associated discrete elongated tobacco film composite element in order to ensure that at least one complete encapsulation of the associated discrete elongate tobacco foil composite element is achieved in the subsequent round shaping device.

Furthermore, the round shaping device preferably has a rolling device which is designed to roll the discrete elongate tobacco film composite elements provided with the wrapping material strip in the direction of movement about their longitudinal axis running at an angle or transversely to their direction of movement and thereby enveloping them with the wrapping material strip. In a further development of this embodiment, the roller device has a roller drum and a guide element arranged at a distance from the outer surface of the roller drum with a guide surface extending along a section of the outer surface of the roller drum in the circumferential or movement direction thereof, wherein between the outer surface of the roller drum and the A gap is formed in the guide surface of the guide element, the width of which in the radial direction of the roller drum essentially corresponds to the diameter of the discrete elongate tobacco film composite element to be shaped, which can thus be brought into contact with the outer surface of the roller drum on the one hand and the guide surface of the guide element on the other hand. The roller device not only serves to round-shape the discrete elongated tobacco film composite elements, which thus have an essentially round cross-section, but also, due to the contacting engagement with the outer surface of the roller drum on the one hand and the guide surface of the guide surface of the guide element, on the other hand, also simultaneously to the rear protruding wrapping strips come into contact with these two components and are thus placed on them during the rotation of the discrete elongate tobacco film composite elements to be shaped, whereby the round discrete elongate tobacco foil composite elements are cleverly wrapped at the same time with the previously protruding wrapping strip.

A further embodiment of the invention is characterized in that the tobacco film composite production device has two rollers forming a pair of rollers, which form a passage area between them for carrying out the tobacco foil composite arrangement and whose lateral surface has first and second sections in alternating sequence in the direction of rotation of the rollers, of which the second Sections are raised in the radial direction with respect to the first sections, this arrangement being such that a second section of the one roller lies opposite a second section of the other roller at a distance which is less than the thickness of the tobacco foil composite arrangement. Accordingly, constrictions which are spaced apart from one another in the direction of movement and extend at an angle or transversely to the direction of movement are introduced into the tobacco foil composite arrangement, in the manner of a form-fitting knurling. In this way, the tobacco film composite arrangement can already be subdivided into elongated sections which are arranged next to one another in the direction of movement and which extend at an angle or transversely to the direction of movement, which are connected to one another via constrictions and form the later tobacco film composite elements. Accordingly, in this embodiment, the tobacco foil composite arrangement is subjected to a preforming which creates better preconditions for the later round shaping in the round shaping device. The constrictions mentioned arise because the second sections of the two rollers are closely spaced in the feedthrough region. In addition, the second sections of the rollers exert an increased contact pressure on the at least one second tobacco foil web, as a result of which this is pressed even more strongly onto and into the tobacco foil composite arrangement, and the first tobacco foil web and the at least one second tobacco foil web are pressed together even more strongly. The distance between the second sections of the two rollers in the lead-through area can be almost zero, as a result of which a particularly strong constriction can be achieved. The second sections can preferably have a rounded tip, as a result of which the sections separated from one another in the tobacco foil composite arrangement have a cross section which at least partially already has round or curved sections, in particular for the rolling process generated by a rolling device according to the previously described exemplary embodiment to form a round cross section is advantageous.

Finally, it should be noted that the pair of rollers according to the previously described embodiment also simultaneously for the supply of the at least web material and its arrangement and attachment to the first tobacco foil web then already gathered can be used.

According to a further preferred embodiment, a metal strip arrangement device with at least one adhesive application means, which is designed to apply adhesive to one side of the essentially endlessly supplied first tobacco film web before it enters the tobacco film shaping device at predetermined locations, each at a predetermined distance from one another in the direction of movement, can be provided the first tobacco foil web, with at least one metal strip feed means for feeding an essentially endless metal strip, with at least one separating means which is designed to subdivide the essentially endless metal strip into individual metal strip segments arranged one behind the other in the direction of movement of the metal strip, with spacing means which are formed to place the individual metal strip segments at a distance from one another which corresponds to the distance between the locations provided with adhesive on the surface of the wall corresponds substantially to the endlessly supplied first tobacco foil web, and with at least one transfer means which is designed to apply the individual metal strip segments in each case to a point on the essentially endlessly supplied first tobacco foil web provided with adhesive. This embodiment thus complements the device according to the invention by introducing metal strips which can be used for inductive heating, as a result of which the rod-shaped products produced using the device according to the invention can advantageously be used in particular to form “heat-not-burn” sticks. In a further development of this embodiment, the at least one transfer means has a drum which is provided along its circumference with holding elements which are each designed to accommodate an individual metal strip segment and are arranged so as to be movable in the circumferential direction and are provided as spacers.

A primary task of the spacing means is to achieve a change in division. This is because the individual metal strip segments produced by the at least one separating agent are initially close behind one another in the direction of movement of the metal strip and must therefore be pulled apart to a desired greater distance for later embedding in the tobacco foil composite arrangement.

A further preferred embodiment of the invention is characterized by at least one distance sensor which is designed to detect the distance between individual metal strip segments in the tobacco film composite arrangement emerging from the tobacco foil composite production device, and a control device which is designed as a function of the signals of the at least one distance sensor to control at least one adhesive application means, the at least one separating means, the spacing means and / or the transfer means such that the locations provided with adhesive from the at least one adhesive application means can be arranged at a predetermined distance from one another and from the transfer means, the individual metal strip segments to the essentially endlessly supplied first one Tobacco film web can be applied essentially exactly at a point provided with adhesive.

When using a drum with holding elements arranged to be movable in the circumferential direction and provided as spacing means, the control device is designed to control the speed of the drum and / or the relative position of the holding elements with respect to the drum in order to adjust the distance between the individual metal strip segments. Furthermore, the control device is expediently designed to control the angle of rotation of the drum relative to the essentially endlessly fed first tobacco foil web for setting the relative position of the individual metal strip segments with respect to the essentially endlessly fed first tobacco foil web.

• 1 schematisch eine Vorrichtung zur Herstellung von stabförmigen Tabakfolienprodukten im Querverfahren gemäß einer ersten bevorzugten Ausführung;
• 2 schematisch eine zumindest teilweise Modifikation der Tabakfolienverbundherstellungseinrichtung aus der Vorrichtung von 1 mit einer in 2a abgebildeten vergrößerten ausschnittsweisen Ansicht eines Abschnittes der hiermit bearbeiteten Tabakfolienverbundanordnung; und
• 3 eine weitere Modifikation der Vorrichtung von 1 mit einer vorgeschalteten Metallstreifenanordnungseinrichtung.

Preferred exemplary embodiments of the invention are explained in more detail below with reference to the accompanying drawings. Show it:

• 1 schematically shows a device for producing rod-shaped tobacco film products in the transverse process according to a first preferred embodiment;
• 2nd schematically an at least partial modification of the tobacco film composite manufacturing device from the device of 1 with one in 2a shown enlarged sectional view of a section of the tobacco foil composite arrangement processed herewith; and
• 3rd another modification of the device of 1 with an upstream metal strip arrangement device.

In 1 According to a preferred exemplary embodiment, a device for producing rod-shaped tobacco film products is shown schematically in the transverse process. The device is fed in the direction of movement according to the arrow A a first sheet of tobacco film 2A that in a tobacco foil forming device 4th entry. The tobacco foil shaping device 4th has in the illustrated embodiment a pair of counter-rotating according to the arrows B indicating the direction of rotation mutually rotating rollers 6 on, which form a passage area between them, in which they engage with the first tobacco foil web 2A can be brought to this in their direction of movement A to promote.

How 1 can also be seen schematically, is the outer surface of the two rollers 6 with alternating first circumferential sections next to each other 6a and second sections 6b Mistake. The first and second sections 6a , 6b extend parallel to the axis of rotation of the respective roller 6 and have an elongated shape. Here are the elongated second sections 6b than compared to the first sections 6a raised projections. In the in 1 illustrated embodiment have the second sections 6b a triangular cross section with an external tip. Alternatively, however, a trapezoidal or undulating cross section is also conceivable, for example. Between the second sections 6b an intermediate space is formed in each case, which essentially has the same cross section as the second sections 6b has, but in the opposite direction, so that in the illustrated embodiment according to 1 these gaps are towards the rollers 6 rejuvenate and taper. The gaps between the second sections 6b form the first sections 6a . How 1 The first and second sections are also shown schematically 6a , 6b on the outer surface of the two rollers 6 formed such that there is a first section in each case in the lead-through area 6a one roller 6 adjacent to a second section 6b the other roller and specifically the second section 6b one roller 6 in the opposite first section 6a the other roller 6 intervenes. The rollers designed in this way 6 cause the introduction of in the direction of movement A successive fold, crease or wavy lines in the through the passage area between the two rollers 6 funded first tobacco film web 2A , namely across their direction of movement A and essentially across their entire width. In this way, the first tobacco film web is expanded and smooth in the state indicated by the reference symbol “ 2A "Designated area into a structure folded or folded essentially in the manner of an accordion in the structure marked with the reference symbol" 2 B “Designated area transferred. The folded or folded structure forms in each case on its top and bottom or in the view of 1 on their opposite and raised only with a dashed sections in the form of tips corresponding to the triangular sections in cross section 6a , 6b the surface of the rollers 6 . Deviating from the schematic representation of 1 these tips can also be designed as blunt tips or wave crests, provided that the first and second sections 6a , 6b on the outer surface of the rollers 6 are provided with a corresponding cross-sectional shape. The first tobacco foil web is created by the folding or folding process described 2A in the direction of movement A pushed together and shortened, so to speak. Accordingly, this process leads to a gathering of the first sheet of tobacco film 2A in their direction of movement A , so that the originally smooth first tobacco foil web 2A in a gathered first tobacco foil web 2 B is transferred. Furthermore, this process leads to the structure of a first tobacco film web gathered in this way 2 B the width of the original smooth first tobacco foil web 2A retains, but has a greater thickness than the material thickness of the tobacco film, which is due to the distance between the top and the bottom or in the view of 1 is defined between the two side surfaces.

The shirred first tobacco film web 2 B then occurs in a shaft in the illustrated embodiment 8th and becomes a tobacco foil composite manufacturing facility 10th fed.

As in 1 is shown schematically, is in the tobacco film composite manufacturing facility 10th an additional smooth sheet of tobacco from each side 12 towards the incoming first tobacco film web 2 B fed according to arrow C and meanwhile on one side 12a with glue 14 provided what in 1 is only indicated schematically by an arrow. The tobacco film composite manufacturing facility 10th has a pair of rollers 16 on, which rotate in opposite directions to each other, as indicated by the arrows D. The two rollers 16 form an implementation area between them. The additional smooth tobacco sheeting 12 with their other glue-free side 12b one of the two rollers 16 diverted into the passage area mentioned and on the respective side of the gathered first tobacco foil web 2 B pressed, which is also through the passage area between the two rollers 16 further in the direction of movement A is passed through. Thus, using the two rollers 16 the two additional tobacco wraps 12 with their glued side 12a against the respectively adjacent side of the gathered first tobacco foil web 2 B pressed. Since the top and bottom or in the view from 1 the two side surfaces of the gathered first sheet of tobacco foil 2 B each form a virtual plane in which the tips of the kink or fold structure or wave crests of a wave-shaped structure are located in the lead-through area between the two rollers 16 gluing the two additional smooth tobacco foil webs 12 with the tips or wave crests of the gathered first tobacco foil web 2 B instead of. In this way, a tobacco foil composite arrangement is created 18th with a sandwich structure; there is on the side 12a of the two additional tobacco foil webs 12 Coated adhesive required to assemble the tobacco foil assembly 18th to stabilize. The tobacco foil composite arrangement 18th accordingly forms a kind of plate-shaped body, the width of which corresponds to the width of the original, unruched first tobacco foil web 2A corresponds, but its thickness between the two, each with an additional tobacco foil web 12 provided side surfaces is defined.

The ratio of the peripheral speed of the two rollers 6 in the tobacco foil forming device 4th compared to the peripheral speed of the two rollers 16 in the tobacco film composite manufacturing facility 10th determines the filling level of the tobacco foil composite arrangement 18th . The faster the two rollers 16 rotate and thus the higher the speed of before entering the tobacco film forming device 4th smooth first sheet of tobacco foil 2A is, the more folds, kinks or waves can be created per section unit and thus the higher the degree of filling in the tobacco foil composite arrangement 18th achieve.

After leaving the tobacco film composite manufacturing facility 10th becomes the tobacco foil composite arrangement 18th in the direction of movement A a drying shaft 20th fed, who has the task of the two additional tobacco foil webs 12 with the gathered first sheet of tobacco foil 2 B connecting adhesive 14 to be set, whereby the heat input is rather minimal.

After exiting the drying chute 20th becomes the tobacco foil composite arrangement 18th in the direction of movement A a separator 22 supplied according to the illustrated embodiment 1 a rotating knife roller 24th has and with an opposite suction roller 26 cooperates. The tobacco foil composite arrangement 18th is between the knife roller 24th and the suction roller 26 passed and comes into engagement with these two rollers 24th , 26 that rotate in opposite directions to each other, as shown by arrows E and F is indicated. The knife roller 24th and the suction roller 26 form a cross cutter, the knife 24a the knife roller 24th the until then essentially endlessly supplied tobacco foil composite arrangement 18th in the direction of movement A arranged one behind the other, in a direction transverse to the direction of movement A extending, discrete, elongated tobacco foil composite elements 28 divided. The suction roller 26 is at a higher peripheral speed than the web speed of the tobacco foil composite assembly 18th operated, whereby the distance between the separated tobacco foil composite elements 28 is enlarged.

Downstream, in the direction of movement A is a wrapping material arranger 30th provided in the direction of movement G essentially endlessly supplied wrapping material 32 processed one side 32a is coated with glue, which is indicated by an arrow 33 in 1 is indicated. This with adhesive on one side 33 provided wrapping material 32 becomes the suction roller 26 fed so that it with its glue 33 coated side 32a in contact with the spaced apart on the suction roller 26 held tobacco foil composite elements 28 and there with the glue 33 arrested. In the area on the suction roller 26 , in which this happens, a further element (not shown in the figures) can be provided, if necessary, around the wrapping material, which until then had been essentially endless 32 against the tobacco foil composite elements 28 to press. In addition, it should be noted that the peripheral speed of the suction roller 26 in the direction of the arrow F is to be dimensioned such that the speed of movement of the tobacco foil composite elements 28 on the outside in the direction of the arrow A is equal to the speed of movement of the wrapping material, which until then had been essentially endless, in the direction of the arrow G is.

The wrapping material arranger 30th points in the illustrated embodiment 1 downstream another suction roll 34 on by the suction roll 26 the wrapping material, which until then had been essentially endless 32 with its other glue-free side 32b picks up, so that now in the area of the further suction roller 34 the one with the glue 33 provided side 32a of the wrapping material 32 adherent and spaced-apart tobacco foil composite elements 28 protrude radially outwards. For this purpose, the further suction roll rotates 34 in the direction of arrow H opposite to the suction roll 26 and is the speed of rotation of the other suction roll 34 adjusted accordingly to the wrapping material, which until then had been essentially endlessly fed 32 to take over continuously.

During the continued movement through the further suction roller 34 the arrangement arrives from wrapping material which has until then essentially been fed in endlessly 32 and tobacco foil composite elements adhering to it 28 to a release agent 36 which is a rotating knife roller 38 with transverse to the direction of movement A oriented knives 40 having. There the wrapping material, which until then has been essentially endless, is supplied 32 from the knives 40 in each case essentially directly at the leading edge of the tobacco foil composite elements 28 across their direction of movement A severed so that on the elongated tobacco foil composite elements 28 one strip of wrapping material each 42 remains, one against the direction of movement A has projecting rearward portion and its entire width in the direction of movement A at least the entire circumferential length of the associated discrete elongated tobacco foil element 28 corresponds.

In the direction of movement A considered, is downstream of the further suction roll 34 an intermediate roller 44 provided in the direction of arrow I in the opposite direction to the further suction roll 34 rotates and the individual tobacco foil composite elements 28 with the one-sided adhering to it and against the direction of movement A strips of wrapping material protruding to the rear 42 vice versa and thus takes over, so to speak. Thus, the tobacco foil composite elements 28 now with the outside wrapping material strip 42 on the intermediate roller, which is also preferably designed as a suction roller 44 held. Is the peripheral speed of the intermediate roller 44 in the direction of arrow I greater than the peripheral speed of the further suction roll 34 in the direction of arrow H, the distance between the individual can be covered with a strip of wrapping material 42 provided tobacco foil composite elements 28 enlarge.

Then they are covered with a strip of wrapping material 42 provided tobacco foil composite elements 28 to a round forming device 46 to hand over. Because the individual discrete elongated tobacco foil composite elements 28 until then have a substantially rectangular or square cross section. This round forming device 46 points in the illustrated embodiment 1 a rolling drum 48 on, from the intermediate roller 44 the tobacco foil composite elements 28 be handed over by now again with their the protruding wrapping material strips 42 bear the supporting side. Furthermore, the round forming device 46 one at a distance from the lateral surface 48a the rolling drum 48 arranged guide element 50 with one extending along a section of the lateral surface 48a the rolling drum 48 in its circumferential or movement direction J extending guide surface 50a on. Thus, between the outer surface 48a the rolling drum 48 and the guide surface 50a of the guide element 50 A gap 52 formed, the width in the radial direction of the roller drum 48 at most about the thickness of the tobacco foil composite elements 28 corresponds or is at least slightly smaller. This brings the tobacco foil composite elements 28 in touching engagement with the lateral surface 48a the rolling drum 48 on the one hand and the management surface 50a of the guide element 50 on the other hand. This causes the tobacco foil composite elements 28 due to the rotation of the roller drum 48 a rolling motion along their movement through the gap 52 subjected and in a rotation about their transverse to the direction of movement A longitudinal axis. This rolling process in turn leads to the tobacco foil composite elements 28 not only received a round cross-section, but also from the wrapping material strip protruding backwards until then 42 be completely enveloped, as this is within the gap 52 also in touching engagement with the lateral surface 48a the rolling drum 48 on the one hand and the management surface 50a of the guide element 50 on the other hand, and due to this touching intervention, it comes into contact with the associated tobacco foil composite element 28 brought and thus put around this.

Thus stand out when leaving the gap 52 coated rod-shaped tobacco foil products 54 are available, which are now fed in the direction of arrow K to further downstream processing stations (not shown in the figures), such as cutting apparatus and / or staggered and sliding drums.

In 2nd is a modification of the tobacco foil composite manufacturing facility 10th schematically depicted that part of the tobacco film composite manufacturing facility 10th concerns. According to this, there are two rollers forming a common pair of rollers which rotate in opposite directions to one another according to the arrows L. 60 provided that between them a lead-through area for carrying out the tobacco foil composite arrangement 18th form. The specialty of these two rollers 60 consists in the structure of its outer surface, which alternates over the circumferential direction of the rollers 60 is distributed parallel to the axes of rotation of the rollers 60 extending first and second sections 60a , 60b have, of which the second sections 60b compared to the first sections 60a are raised in the radial direction. In the illustrated embodiment according to 2nd is every roller 60 with two first and two sections each 60a , 60b provided so that from the front of the rollers 60 in the perspective of 2nd or in the cross section of the rollers 60 considered, the shape of the rollers shown 60 roughly resembles that of a cross. The arrangement is such that in the lead-through area between the two rollers 60 a second section each 60b one roller 60 a second section 60b the other roller 60 at a distance which is less than the thickness of the tobacco foil composite arrangement 18th is like 2nd reveals. This distance can preferably be almost zero. Furthermore, in the exemplary embodiment shown in FIG 2nd the raised second sections 60b rounded tips on.

How 2nd can also be seen schematically, generate the above second sections 60b itself transverse to the direction of movement A over the entire width of the tobacco foil composite arrangement 18th extending constrictions 18a in the tobacco foil composite arrangement 18th . These constrictions 18a arise from the tips of the second portions formed as projections 60b stand closely to each other in the lead-through area, so that the three tobacco foil webs 2 B , 12 are pressed together, like the detail view of 2a shows schematically. Through the constrictions 18a arise in the direction of movement A adjacent sections 18b which is a cross to the direction of movement A have a running, elongated shape, but over the constrictions 18a are still connected to each other, so that the tobacco foil composite arrangement at this point 18th continue in the manner of a movement A remains essentially endless path. Due to the rounded shape of the raised second sections 60b get those from the constrictions 18a limited elongated sections 18b already a cross-section with a course that is at least partially round or curved, which results in better preconditions for later rolling in the subsequent round-forming device 46 can result. From these elongated sections 18b the tobacco foil composite arrangement 18th will later become the tobacco foil composite elements 28 formed so that the separator 22 It is to be provided that the tobacco foil composite arrangement 18th in the area of constrictions 18a severed.

This in 2nd shown pair of rollers 60 can downstream downstream in 1 pictured rollers 16 be provided. Alternatively, it is also conceivable for the rollers 60 instead of the rollers 16 from 1 to be used, in which case the rollers 60 at the same time also the supply of glue 14 provided additional tobacco foil webs 12 to the shirred first tobacco foil web 2 B take over.

Accordingly, using the rollers 60 not only create the constrictions mentioned, but also the three tobacco foil webs 2 B and 12 press together.

In 3rd is schematically an additional development of the device of 1 pictured, in the form of a metal strip arrangement 70 that of the tobacco foil shaping device 4th and thus according to the device 1 is connected upstream. With the metal strip arranger 70 is the device of 1 expanded by the possibility of metal strips in the rod-shaped tobacco foil products 54 to be introduced, which can thus be used in particular to form “heat-not-burn” sticks, since the introduced metal strips can be used for inductive heating.

As in 3rd is shown schematically, the metal strip arrangement device 70 a metal strip 72 in a substantially endless configuration in the direction of arrow M, first a suction roll 74 fed that together with a knife roller 76 form a cross cutter. The suction roller 74 and the knife roller 76 rotate in opposite directions to each other in the direction of the arrows N and form between them a passage area through which the essentially endlessly fed metal strip 72 is moved through after it first comes into contact with the outer surface of the suction roll 74 arrives and is fixed there by means of suction air. By the knife 76a on the knife roller 76 until then the metal strip, which was essentially endlessly fed 72 in individual metal strip segments arranged one behind the other in its direction of movement M. 80 divided and then on cam-controlled suction cups 82 passed over the scope of a transfer drum 84 are distributed. Because the primary task of the transfer drum 84 lies in a change in division, are the suction cups 82 than in the circumferential direction of the transfer drum 84 pivotally arranged holding elements are provided. For the takeover of the individual metal strip segments 80 from the suction roll 74 rotates the transfer drum 84 counter to the suction roller 74 , as can be seen from the arrows N and O indicating the direction of rotation. After transfer to the transfer drum 84 are the individual metal strip segments 80 initially very close to each other and then by a corresponding swiveling movement of the suction cups 82 brought to a desired larger distance from each other.

In contrast to the execution of 1 becomes the essentially endlessly fed first tobacco foil web 2A before entering the tobacco film forming facility 4th on their the transfer drum 84 facing side 2Aa with glue 86 provided in the direction of arrow P only on discrete places 2Aaa is applied, each at a predetermined distance from each other along the first tobacco sheet 2A in their direction of movement A lie how 3rd shows schematically. The first tobacco foil web thus provided with individual discrete adhesive locations spaced apart from one another 2A becomes a deflection roller 88 fed, which are adjacent to the transfer drum 84 is arranged and their direction of rotation according to the arrow Q the direction of movement A the first tobacco foil web 2A corresponds. The first tobacco sheeting is used 2A with their glue-free other side 2Ab in touching engagement with the jacket of the deflection roller 88 brought and in the direction of movement A towards the tobacco foil former 4th (in the view of 3rd downward). In the meantime, the individual metal strip segments are handed over 80 from the suction cups 82 of the Transfer drum 84 on the one with glue 86 provided side 2Aa the first tobacco foil web 2A , in such a way that in each case a metal strip segment 80 on one with glue 86 provided place 2Aaa arranged and there with the first tobacco foil web 2A is glued. The deflection roller serves here 88 at the same time as an abutment for generating a counter pressure that is required to the individual metal strip segments 80 on the first sheet of tobacco foil 2A to press. The individual metal strip segments thus bonded 80 at spaced and glued locations 2Aaa the first tobacco foil web 2A leads to embedding of the metal strip segments 80 within that of the tobacco foil composite manufacturing facility 10th manufactured tobacco foil composite arrangement 18th , how 3rd furthermore shows schematically.

As in 3rd is also shown schematically, has the metal strip arrangement 70 in the illustrated embodiment also a distance sensor 90 on that downstream of the tobacco foil composite manufacturing facility 10th is arranged and the distance between individual metal strip segments 80 in the from the tobacco film composite manufacturing facility 10th emerging tobacco foil composite arrangement 18th detected. The one from the distance sensor 90 Measurement signals are generated via an electrical line 92 to a control device 94 forwarded, depending on the measurement signals of the distance sensor 90 the speed and the relative rotational position of the knife roller 76 and the transfer drum 84 as well as the swivel position of the suction cups 82 opposite the transfer drum 84 and the application of the adhesive 86 controls that with glue 86 to be provided 2Aaa on the essentially endlessly fed first tobacco foil web 2A at a desired distance from each other and the transfer drum 84 enabled the individual metal strip segments 80 each with an adhesive 86 provided place 2Aaa on the essentially endlessly fed first tobacco foil web 2A to apply. The coupling of the control device 94 with the aforementioned assemblies is in 3rd schematically with the help of an arrow 96 indicated.

Incidentally, to avoid repetitions on the basis of 1 made description of the device.

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 2016/050873 A1 [0002, 0003]

Claims (34)

Device for producing rod-shaped products of the tobacco processing industry, with a tobacco foil shaping device (4), which is designed to essentially gather a substantially endlessly fed first tobacco foil web (2A) in its direction of movement (A), and a tobacco foil composite manufacturing device (10), which is designed to glue at least one substantially endlessly supplied web material (12) to the gathered first tobacco film web (2B) in such a way that a tobacco film composite arrangement (18) composed of the gathered first tobacco film web (2B) and the outside of the gathered first tobacco film web (2B ) adjacent web material (12) is formed, characterized by a separating device (22) which is designed to discrete, tobacco foil composite arrangement (18) in discrete, one behind the other in the direction of movement (A), extending in one direction at an angle or transversely to the direction of movement (A) subdivide elongated tobacco foil composite elements (28), and a round shaping device (46) which is designed to provide the discrete elongate tobacco foil composite elements (28) with a substantially round cross section. Device after Claim 1 , characterized in that the tobacco foil shaping device (4) is designed to provide the first tobacco foil web (2A) with a structure which has an alternating sequence of juxtaposed in the direction of movement (A), extending in an angular or transverse direction to the direction of movement (A) having elongated first and second sections which are arranged offset in height in a direction transverse to the plane of the first tobacco foil web (2A). Device after Claim 1 or 2nd , characterized in that the tobacco foil shaping device (4) is designed to provide the first tobacco foil web (2A) with folds, kinks and / or waves at an angle or transverse to the direction of movement (A). Device according to at least one of the preceding claims, characterized in that the tobacco foil shaping device (4) has a pair of rollers (6) which are rotatably mounted about an axis of rotation and form a passage area between them in which they engage the first tobacco foil web ( 2A) can be brought in order to convey the first tobacco foil web (2A) in its direction of movement (A), the lateral surfaces of the two rollers (6) alternatingly lying next to one another and extending essentially parallel to the axis of rotation and elongated first sections (6a) and opposite the first sections (6a) has raised, elongated second sections (6b) which extend essentially parallel to the axis of rotation, the first and second sections (6a, 6b) being formed on the lateral surface of the two rollers (6) such that in a first section (6a) of the one roller (6) adjacent to a second section chnitt (6b) of the other roller (6). Device after Claim 4 , characterized in that the first and second sections (6a, 6b) are arranged on the lateral surface of the two rollers (6) in such a way that a first section (6a) of one roller (6) engages with a second in the lead-through area Section (6b) of the other roller (6) arrives. Device after Claim 4 or 5 , characterized in that the first sections (6a) and / or the second sections (6b) have the shape of a triangle, a trapezoid and / or a wave. Device according to at least one of the preceding claims, characterized in that the tobacco foil shaping device (4) is designed to convey the first tobacco foil web (2A) at a first movement speed, and the tobacco foil composite production device (10) is designed, the tobacco foil composite arrangement (18) with a second Promote movement speed that is lower than the first movement speed. Device according to at least one of the preceding claims, characterized in that the tobacco foil composite production device (10) is designed to glue the at least one web material (12) to the gathered first tobacco foil web (2B) in a substantially smooth state. Device according to at least one of the preceding claims, characterized in that the tobacco foil composite production device (10) is designed to feed the at least one web material (12) to the gathered first tobacco foil web (2B) in a state provided with adhesive (14) on only one side such that the side (12a) of the at least one web material (12) provided with adhesive comes into contact with the gathered first tobacco foil web (2B). Device after Claim 9 , characterized in that the tobacco film composite production device (10) has at least one first roller (16) which can be brought into engagement and arranged with the adhesive-free side (12b) of the at least one web material (12), the at least one web material (12) with it with adhesive (14) provided side (12a) in contact with the gathered first tobacco foil web (2B). Device according to at least one of the preceding claims, characterized in that the tobacco foil composite production device (10) is designed, the web material (12) with one side of the gathered first tobacco foil web (2B) and a further web material (12) with the other side of the gathered first Glue tobacco foil (2B). Device after Claim 11 , characterized in that the tobacco foil composite production device (10) is designed to glue the further web material (12) in an essentially smooth state to the gathered first tobacco foil web (2B). Device after Claim 11 or 12 , characterized in that the tobacco foil composite production device is designed to feed the further web material (12) to the other side of the gathered first tobacco foil web (2B) in a state only provided with adhesive (14) in such a way that the side provided with adhesive (14) ( 12a) of the further web material (12) comes into contact with the other side of the gathered first tobacco foil web (2B). Device according to the Claims 10 and 13 characterized in that the tobacco film composite production device (10) has a second roller (16) which can be brought into engagement and arranged with the adhesive-free side (12b) of the further web material (12), the further web material (12) with its adhesive ( 14) provided side (12a) in contact with the other side of the gathered first tobacco foil web (2B), and the second roller (16) opposite the first roller (16) is arranged so that between these two rollers (16) Passage area is formed, through which the gathered first tobacco film web (2A) to be glued to the web material (12) can be moved. Device after Claim 4 such as Claim 10 or 14 , characterized in that the at least one roller (16) of the tobacco foil composite manufacturing device (10) can be operated at a lower peripheral speed than the rollers (6) of the tobacco foil shaping device (4). Device according to at least one of the preceding claims, characterized in that a drying device (20) for drying the tobacco film composite arrangement (18) is provided between the tobacco foil composite production device (10) and the separating device (22). Device after Claim 16 , characterized in that the drying device (20) has a drying shaft through which the tobacco foil composite arrangement (18) can be passed. Device according to at least one of the preceding claims, characterized in that between the separating device (22) and the round shaping device (46) a spacing device (26) is provided which is designed to adjust the distance between the discrete elongate tobacco foil composite elements (28) in the direction of movement (A ) to enlarge. Device after Claim 18 , characterized in that the spacing device (26) has a roller which is designed to receive the discrete elongate tobacco foil composite elements (28) and is operated at a peripheral speed which is greater than the movement speed of the tobacco foil composite arrangement (18). Device after Claim 18 or 19th , characterized in that between the spacing device (26) and the round shaping device (46) a wrapping material arrangement device (30) is provided, which is designed to apply a wrapping material strip (42) to a discrete elongated tobacco foil composite element (28). Device after Claim 20 , characterized in that the wrapping material arrangement device (30) has at least one conveying means which is formed, essentially endlessly supplied wrapping material (32) provided on one side with adhesive (33) in a direction of movement (G) which corresponds to the direction of movement (A) of the discrete elongate Tobacco foil composite elements (28), and with a movement speed that corresponds to the movement speed of the discrete elongated tobacco foil composite elements (28) to transport, at least one arrangement means, which is designed, the essentially endlessly supplied wrapping material (32) with its adhesive (33) applied side (32a) to the discrete elongate tobacco foil composite elements (28), and has at least one release means (36) which is designed to apply the wrapping material (32) applied to the tobacco foil composite elements (28), viewed in the direction of movement (A), in one such a distance behind the discrete n to cut through elongated tobacco foil composite elements (28) transverse to their direction of movement (A), so that a wrapping material strip (42) remains on the discrete elongate tobacco foil composite elements (28), which has a section protruding rearward against the direction of movement (A) and its entire width in Direction of movement (A) corresponds at least to the entire circumferential length of the associated discrete elongated tobacco foil composite element (28). Device after Claim 21 , characterized by a roller that takes over the function of the arrangement means. Device according to the Claims 19 and 22 , characterized in that the roller is the roller of the spacing device (26). Device according to one of the Claims 21 to 23 , characterized in that the separating means (36) has a rotating knife roller (38). Device according to at least one of the preceding claims, characterized in that the round shaping device (46) has a rolling device which is designed to move the discrete elongate tobacco foil composite elements (28) provided with the wrapping material strip (42) in the direction of movement (A) about their angles or transversely roll its longitudinal axis running in the direction of movement (A) and thereby envelop it with the wrapping material strip (42). Device after Claim 25 , characterized in that the rolling device comprises a roller drum (48) and a guide element (50) which is arranged at a distance from the outer surface (48a) of the roller drum (48) and which has a portion of the outer surface (48a) of the roller drum (48) in the latter Has circumferential or movement direction (J) extending guide surface (50a), wherein a gap (52) is formed between the lateral surface (48a) of the roller drum (48) and the guide surface (50a) of the guide element (50), the width of which is radial Direction of the roller drum (48) essentially corresponds to the diameter of the round, discrete, elongated tobacco film composite element (28), which thus has a contacting engagement with the lateral surface (48a) of the roller drum (48) on the one hand and the guide surface (50a) of the guide element (50) on the other hand is feasible. Device according to at least one of the preceding claims, characterized in that the tobacco film composite production device (10) has two rollers (60) forming a pair of rollers, which form a passage area between them for carrying out the tobacco foil composite arrangement (18) and the lateral surface of which in an alternating sequence in the direction of rotation of the rollers (6) have first and second sections (60a, 60b), of which the second sections (60b) are raised in the radial direction compared to the first sections (60a), this arrangement being such that a second section () 60b) one roller (60) is opposite a second section (60b) of the other roller (60) at a distance which is less than the thickness of the tobacco foil composite arrangement (18). Device after Claim 27 , characterized in that the distance is almost zero. Device after Claim 27 or 28 , characterized in that the second portions (60b) have a rounded tip. Device according to at least one of the preceding claims, characterized by a metal strip arrangement device (70) with at least one adhesive application means which is designed to apply adhesive (86) to one side (2Aa) of the essentially endlessly fed first tobacco film web (2A) before it enters the tobacco film forming device (4) at predetermined locations (2Aaa), which are each at a predetermined distance from one another in the direction of movement (A) of the first tobacco foil web (2A), with at least one metal strip feed means (74) for feeding an essentially endless metal strip (72) at least one separating means (76) which is designed to subdivide the essentially endlessly supplied metal strip (72) into individual metal strip segments (80) arranged one behind the other in the direction of movement (M) of the metal strip (72), with spacing means (82) which are formed , The individual metal strip segments (80) in egg to spend a distance from one another which corresponds to the distance between the locations (2Aaa) provided with adhesive on the essentially endlessly supplied first tobacco foil web (2A), and with at least one transfer means (84) which is designed to provide the individual metal strip segments (80) in each case to be applied to an area (2Aaa) of the first tobacco foil web (2A) which is supplied essentially endlessly and provided with adhesive (86). Device after Claim 30 , characterized in that the at least one transfer means (84) has a drum which is provided along its circumference with holding elements which are each designed to receive an individual metal strip segment (80) and are arranged such that they can move in the circumferential direction and are provided as spacing means (82). Device after Claim 30 or 31 , characterized by at least one distance sensor (90), which is designed to detect the distance between individual metal strip segments (80) in the tobacco film composite production device (10) emerging from tobacco foil composite device (18), and a control device (94), which is designed in Dependence on the signals of at least one Distance sensor (90) to control the at least one adhesive application means, the at least one separating means (76), the spacing means (82) and / or the transfer means (84) so that the locations (2Aaa.) Provided with adhesive (86) from the at least one adhesive application means ) can be arranged at a predetermined distance from each other and from the transfer means (84), the individual metal strip segments (80) can be applied to the essentially endlessly supplied first tobacco foil web (2A) in each case essentially exactly at a location (2Aaa) provided with adhesive (86). Device according to the Claims 31 and 32 , characterized in that the control device (94) is designed to control the speed of the drum and / or the relative position of the holding elements with respect to the drum in order to adjust the distance between the individual metal strip segments (80). Device after Claim 33 , characterized in that the control device (94) is designed to adjust the angle of rotation of the drum relative to the essentially endlessly fed first tobacco foil web (2A) to adjust the relative position of the individual metal strip segments (80) relative to the substantially endlessly fed first tobacco foil web (2A) to control.

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