Wrapping of rod-shaped articles of the tobacco processing industry

Abstract

The invention relates in particular to a device for wrapping rod-shaped articles of the tobacco processing industry, wherein a conveying mechanism, in particular a conveying drum, is provided for conveying rod-shaped articles arranged one after the other in a cross-axis direction in a cross-axis direction, wherein a material strip conveying device is provided for conveying a continuous or quasi-continuous material strip, and a cutting device is provided for cutting the continuous or quasi-continuous material strip into material strip sections, and wherein a supply device is provided for supplying the cut material strip sections to the rod-shaped articles conveyed in a cross-axis direction, wherein a hot glue application mechanism is provided for applying hot glue, in particular liquid hot glue or a hot glue film, to the conveyed material strip and / or a hot glue application mechanism is provided for applying hot glue, in particular liquid hot glue or a hot glue film, to the cut material strip sections and / or a hot glue application mechanism is provided for applying hot glue to the rod-shaped articles.

Description

Technical Field

[0001] This invention relates to an apparatus for wrapping rod-shaped articles, particularly multi-segment rod-shaped articles, in the tobacco processing industry.

[0002] Furthermore, the present invention relates to a machine for the tobacco processing industry, particularly a filter tip attaching machine, a filter tip segment manufacturing machine, or a multi-segment rod manufacturing machine, and a method for wrapping rod-shaped articles.

[0003] In addition, the present invention relates to a rod-shaped smoking article having, in particular, a plurality of (preferably rod-shaped) article segments, and the use of at least one hot glue application mechanism for applying hot glue. Background Technology

[0004] In a filter fitting machine, filter plugs or mouthpieces (especially double the length) are inserted between cut and longitudinally spaced tobacco stems (Tabakstöcken), where adhesive-coated connecting pieces are then attached to the assembled smoking product assembly, which includes the tobacco stem, filter plug, and tobacco stem components.

[0005] The methods and apparatus of the above type are specifically designed for the mass production of filter cigarettes conveyed along the transverse axis on a filter tip feeding machine. Their efficiency in terms of the number of products manufactured and discharged per unit time has increased dramatically over time, or rather, must be adapted to the increased production capacity of the preceding cigarette rolling machine.

[0006] DE 39 18 137 C1 describes a belagpapier aggregate in a filter tip dispenser. Here, glued belagpapier is fed as a continuous strip and cut into individual sheets or connecting pieces by a cutting device. After cutting, these connecting pieces are separated by spacing and carried to the conveying speed of the smoking article. After cutting and separation (pulling apart), the now-formed belagpapier sheets are held by suction rollers and transported at a constant speed higher than the running speed of the continuous belagpapier strip.

[0007] Devices for winding rod-shaped objects are known from the prior art. For example, DE 37 02 915 C2 discloses a device for winding adhesive-coated connecting pieces around the mating portion of an assembly consisting of a rod-shaped tobacco product and a filter plug or mouthpiece. This device includes a winding conveyor with a winding face and an associated fixed anti-winding face, wherein the winding face and anti-winding face form a winding channel for winding the assembly with the connecting piece and are movable relative to each other. In this known device, the fixed anti-winding face is equipped with moving tabs (Stege) before the assembly enters the winding channel. These tabs, while gripping the assembly in a frictional locking manner, move at a lower speed following the direction of movement of the winding face of the winding conveyor. Thus, the product acquires a negative acceleration, causing it to be wound before entering the winding channel. This pre-acceleration results in a reduction of the negative acceleration acting on the object as it enters the winding channel, and thus provides better protection for the rod-shaped object to be wound.

[0008] Another device for winding rod-shaped objects is known from EP 0 687 424 B1. It discloses a device in which a portion of the winding surface, which is cyclic and controlled in terms of its speed, is provided with a starting edge, which interacts with a winding surface that does not have a fixed starting edge.

[0009] Furthermore, EP 4 151 098 A1 discloses an apparatus for winding rod-shaped articles in the tobacco processing industry, particularly filter cigarettes or filter rods or multi-segment filters. Another apparatus for winding rod-shaped articles in the tobacco processing industry is shown in WO 2014 / 064655 A2. Additionally, WO 2018 / 234146 A1 describes a method for manufacturing rod-shaped smoking articles from corresponding multiple article segments. Summary of the Invention

[0010] One object of the present invention is to achieve high, consistent product quality, preferably at high process speeds, when wrapping rod-shaped article groups (preferably having multiple article segments) with, for example, rough-surfaced segments and / or hydrophobic wrapping materials. Another object of the present invention is to improve the wrapping process of rod-shaped article groups (preferably having multiple article segments) so as to achieve high, consistent product quality, preferably at high process speeds.

[0011] This task is solved by an apparatus for producing rod-shaped products, particularly multi-segment rod-shaped products or multi-segment products, for the tobacco processing industry. The apparatus includes a conveying mechanism, particularly conveying rollers, for transversely conveying rod-shaped products arranged sequentially along the transverse axis. It also includes a material strip conveying device for conveying continuous or quasi-continuous material strips, a cutting device for cutting the continuous or quasi-continuous material strips into material strip segments, and a feeding device for supplying the cut material strip segments to the transversely conveyed rod-shaped products. The device includes a preferred hot adhesive application mechanism that can be actively or passively operated, for applying hot adhesive, particularly liquid hot adhesive or hot adhesive film, to the conveyed material strip. And / or includes one, particularly another, and / or preferably an actively operable or passively operable hot adhesive application mechanism for applying hot adhesive, particularly liquid hot adhesive or hot adhesive film, to cut strips of material. And / or provided with one, particularly another and / or preferably an actively operable or passively operable hot adhesive application mechanism for applying hot adhesive, particularly liquid hot adhesive or hot adhesive film, to a rod-shaped article, particularly to be wrapped.

[0012] This invention is based on the concept that, in the manufacture of wrapped rod-shaped articles (especially multi-segment articles), when using hot glue, the rod-shaped articles are wound with material strips during the winding process to bond the material strips attached to the rod-shaped articles. Thus, for example, rough-surfaced and / or hydrophobic material strips can be reliably attached to the rod-shaped article assembly, such that during subsequent winding, the material strips are wound around the rod-shaped articles with a strong wickelschluss.

[0013] Within the scope of this invention, it is particularly specified that the rod-shaped article for wrapping is a group of segments having a plurality of side-by-side arranged, preferably end-to-end contact segments, wherein the segments preferably have a circular cross-section. The provided group of rod-shaped segments may preferably have two, three, four, five, or more segments.

[0014] One design specifies that hot adhesive is applied to a continuous or quasi-continuous strip of material conveyed by a material strip conveying device. After the hot adhesive is applied, the strip is cut into strip segments by a cutting device, thereby adhering the provided strip segments, along with the applied hot adhesive, to the conveyed rod-shaped article. The material strip conveying device, for example, has a first pair of traction rollers and a second pair of traction rollers for conveying the material strip, wherein hot adhesive is applied during material strip conveying. Preferably, the hot adhesive is applied via a hot adhesive application mechanism with respect to the conveying direction of the material strip, particularly before the cutting device or at the inlet side (especially not far from the inlet).

[0015] In another design, hot adhesive is applied to the cut material strip before the material strip is attached to the rod-shaped article conveyed along the transverse axis or after the material strip (e.g., wetted with cold glue or provided with cold glue) is attached to the rod-shaped article.

[0016] Within the scope of this invention, in another design embodiment, hot adhesive is applied to the conveyed rod-shaped article before the material strip is attached to the rod-shaped article.

[0017] Furthermore, within the scope of this invention, it is further specified that the hot adhesive used is in the form of liquid hot adhesive or hot adhesive film.

[0018] To wind a rod-shaped article with its attached material strips, one design includes a winding device, preferably constructed with a winding hand and / or a winding roller and / or a winding cam. When using the winding device, the material strips attached to the rod-shaped article are wound around the article.

[0019] In one design of the device, a winding device (especially one with a winding table) is provided after the supply device, with reference to the transverse conveying direction of the rod-shaped product, for winding the rod-shaped product with a strip of material attached to it.

[0020] The supply device preferably has suction rollers for the cut strips of material, wherein the material strips are attached to the rod-shaped articles by means of rotational suction rollers. The material strips are preferably attached to the rod-shaped articles with one delayed end or two free ends (particularly one advanced end and one delayed end). During the conveying of the rod-shaped articles with the material strips, it can be specified, for example, that the advanced end of the material strip is pressed against the corresponding rod-shaped article by, for example, an adhesive device (Tackvorrichtung) or a folding star wheel (Faltstern) or a similar device.

[0021] Therefore, according to an improvement of the device, it is advantageously specified that the wrapping device has a hot glue application mechanism for applying hot glue to the rod-shaped article, wherein in particular the hot glue application mechanism for applying hot glue to the rod-shaped article is constructed and / or integrated for applying hot glue to the rod-shaped article in the winding block (Rollklotz) of the winding device, and / or the wrapping device has a hot glue application mechanism for applying hot glue to the cut material strip segments.

[0022] In a preferred improvement of the device, preferably, the hot glue application mechanism for applying hot glue to the conveyed material strip has a nozzle and / or a transfer mechanism for hot glue, particularly a transfer roller, and / or the hot glue application mechanism for applying hot glue to the cut material strip segment has a nozzle and / or a transfer mechanism for hot glue, particularly a transfer roller, and / or the hot glue application mechanism for applying hot glue to, in particular, a rod-shaped article to be wrapped has a nozzle and / or a transfer mechanism for hot glue, particularly a transfer roller. In a preferred improvement of the device, preferably, instead of a hot glue application mechanism, the device has a cold glue application mechanism for applying cold glue to the conveyed material strip, and has nozzles and / or transfer mechanisms for the cold glue, particularly transfer rollers; and / or instead of a hot glue application mechanism, the device has a cold glue application mechanism for applying cold glue to cut material strip segments, and has nozzles and / or transfer mechanisms for the cold glue, particularly transfer rollers; and / or instead of a hot glue application mechanism, the device has a cold glue application mechanism for applying cold glue, particularly to rod-shaped articles to be wrapped, and has nozzles and / or transfer mechanisms for the cold glue, particularly transfer rollers. Specifically, the nozzles and / or cold glue application mechanism and / or hot glue application mechanism are constructed and / or arranged to operate in a cycle-like manner, or are operated in a cycle-like manner. Preferably, the cold glue application mechanism or the hot glue application mechanism is configured to apply cold glue or hot glue to the transverse axial region of the cut material strip segment or the conveyed material strip, particularly at most 10%, 20%, or 30% of the width of the cut material strip segment or the conveyed material strip. Preferably, the cold glue application mechanism or the hot glue application mechanism is configured to apply cold glue or hot glue to the longitudinal axial region, particularly at most 10%, 20%, or 30% of the length of the rod-shaped article to be wrapped.

[0023] In a preferred embodiment of the device, the hot glue application mechanism for applying hot glue to the conveyed material strip preferably includes a treatment mechanism for removing or preventing contaminants, particularly a pneumatic nozzle or suction device; and / or the hot glue application mechanism for applying hot glue to cut material strip segments preferably includes a treatment mechanism for removing or preventing contaminants, particularly a pneumatic nozzle or suction device; and / or the hot glue application mechanism for applying hot glue, particularly to rod-shaped articles to be wrapped, preferably includes a treatment mechanism for removing or preventing contaminants, particularly a pneumatic nozzle or suction device. Such a treatment mechanism removes contaminants that may be generated during the application process, particularly hot glue strands, or blows them onto the material or article to be applied, thus preventing contamination of the device.

[0024] According to another aspect, the device specifies that the hot glue application mechanism for applying hot glue to the conveyed material strip is adjustable or can be adjusted for applying hot glue, wherein, in particular, the adjustment of the hot glue application mechanism is performed according to the conveying speed of the material strip.

[0025] Furthermore, in one design of the device, it is advantageous that the hot glue application mechanism for applying hot glue to the cut material strip segments is adjustable or can be adjusted for applying hot glue, wherein, in particular, the adjustment of the hot glue application mechanism is performed according to the conveying speed of the material strip segments.

[0026] Furthermore, an improved embodiment of the device is characterized in that the hot glue application mechanism for applying hot glue to the rod-shaped article is adjustable or can be adjusted for applying hot glue, wherein, in particular, the adjustment of the hot glue application mechanism is performed according to the conveying speed of the rod-shaped article, which is being conveyed in particular in the transverse direction.

[0027] In an improved embodiment of the device, a hot glue application mechanism for applying hot glue to the conveyed material strip is configured to apply a predetermined, particularly quantitative or pre-quantitative amount of hot glue, and / or a hot glue application mechanism for applying hot glue to cut material strip segments is configured to apply a predetermined, particularly quantitative or pre-quantitative amount of hot glue, and / or a hot glue application mechanism for applying hot glue to rod-shaped articles, particularly to be wrapped, is configured to apply a predetermined, particularly quantitative or pre-quantitative amount of hot glue.

[0028] Furthermore, one embodiment of the device is characterized by having a cold glue application device for applying cold glue to continuous or quasi-continuous strips of material, wherein, in particular, the cold glue application device is arranged upstream of the supply device and / or upstream of the hot glue application mechanism for applying hot glue to the conveyed strips of material. Here, within the scope of the invention, the device includes both a cold glue application device and at least one hot glue application mechanism, such that the strip segments of the rod-shaped article are provided with or are provided with an adhesive pattern made of cold glue (especially water-based glue) and possibly hot glue. Specifically, it is specified here that the area for cold glue and the area for hot glue are constructed separately, thereby providing an area for cold glue adjacent to the area for hot glue. For example, this device can be used to manufacture so-called wrapped heat-not-burn-produce (HNB products). For example, if the strip of material and the strip segments cut from it are made of a hydrophobic material, then in the case of using hot glue, different segments of multiple rod-shaped articles can be wrapped by the attached strip segments. The application of hot glue achieves fixation of the strip segments.

[0029] In one particular design, cold glue and hot glue are applied simultaneously to the material strip or section of the material. In an alternative design, cold glue and hot glue are applied to the material strip or section of the material at staggered times.

[0030] Preferably, according to another aspect, downstream of the hot glue application mechanism for applying hot glue to the conveyed strip of material, a heating device and / or detection sensor for the hot glue applied to the strip of material is provided, particularly a detection sensor for acquiring glue images, especially hot glue images. Preferably, the device has a control or adjustment mechanism connected to the hot glue application mechanism, the cutting device, and the detection sensor to specifically control or adjust the cutting position of the strip of material to be cut relative to the hot glue trajectory, wherein the distance between the cutting edge and the hot glue trajectory is greater than 0.1 mm, 0.2 mm, 0.3 mm, or 0.5 mm, and / or less than 8 mm, 7 mm, 6 mm, or 5 mm. For example, the heating device is configured as a heating radiator or heat radiation device, or as a hot air blower or similar device, for heating the applied hot glue to a predetermined temperature, preferably above ambient temperature. Furthermore, this also prevents rapid cooling of the hot glue.

[0031] Advantageously, in one design, downstream of the hot adhesive application mechanism for applying hot adhesive to the cut material strip segments, a heating device and / or detection sensor for the hot adhesive applied to the material strip segments are provided, particularly for acquiring adhesive images, preferably detection sensors for hot adhesive images. For example, the supply device for supplying the cut material strip segments is configured with a suction roller, which preferably cooperates with a cutting roller for cutting the material strip into material strip segments, wherein the cutting roller may be heatable for heating the hot adhesive. Furthermore, in another design, a heating radiator, heat radiation device, hot air blower, or similar device may be arranged at the suction roller discharging the material strip segments.

[0032] In one improved embodiment of the device, downstream of the hot adhesive application mechanism for applying hot adhesive to, in particular, a rod-shaped article to be wrapped, a heating device and / or a detection sensor for the hot adhesive applied to the rod-shaped article, particularly a detection sensor for acquiring images of the adhesive, especially images of the hot adhesive. Here, according to one embodiment, the heating device may be configured as a heating radiator, a heat radiation device, a hot air blower, or a similar device.

[0033] In one design (in which hot adhesive is applied to a rod-shaped article or a strip of material, for example, in a winding device), within the scope of the invention, the winding device is provided, for example, with a heating device.

[0034] Preferably, the hot adhesive application mechanism for applying hot adhesive to the conveyed material strip is configured to apply a predetermined hot adhesive pattern, in particular only one hot adhesive droplet or multiple hot adhesive droplets preferably arranged linearly in sequence and / or side by side and / or at least one preferably linear hot adhesive strip and / or at least one hot adhesive film strip, wherein, in particular, the hot adhesive pattern is applied to or applied to the material strip at equidistant intervals or at alternating equidistant intervals.

[0035] One or more detection sensors used to acquire adhesive images are preferably, in one design, part of a conditioning device for applying hot adhesive to a strip or segment of material or a rod-shaped article.

[0036] In particular, in one embodiment, the apparatus specifies that a hot adhesive application mechanism for applying hot adhesive to the cut material strip segment is configured to apply a predetermined hot adhesive pattern, in particular only one hot adhesive droplet or multiple hot adhesive droplets and / or at least one preferably linear hot adhesive strip and / or at least one hot adhesive film strip, onto the material strip segment.

[0037] According to a preferred improvement of the device, the hot adhesive application mechanism for applying hot adhesive to, in particular, a rod-shaped article to be wrapped, is configured to apply a predetermined hot adhesive pattern, in particular only one hot adhesive droplet or multiple hot adhesive droplets and / or at least one preferably linear hot adhesive strip and / or at least one hot adhesive film strip, onto the article.

[0038] According to a preferred design of the device, for applying liquid hot adhesive, a hot adhesive application mechanism for applying hot adhesive to a conveyed strip of material has: a supply unit with a melting chamber for hot adhesive, and one or more connecting lines, particularly hoses, connected to the supply unit for one or more application nozzles; and / or for applying liquid hot adhesive, a hot adhesive application mechanism for applying hot adhesive to a cut strip of material has: a supply unit with a melting chamber for hot adhesive, and one or more connecting lines, particularly hoses, connected to the supply unit for one or more application nozzles; and / or for applying liquid hot adhesive, a hot adhesive application mechanism for applying hot adhesive to a rod-shaped article has: a supply unit with a melting chamber for hot adhesive, and one or more connecting lines, particularly hoses, connected to the supply unit for one or more application nozzles. Preferably, the supply unit has a can with a heater for heating the hot adhesive in the can to a temperature T1, and preferably, the one or more application nozzles have heaters for heating the hot adhesive in the one or more application nozzles or the application nozzles to a temperature T2, wherein preferably, T2 is greater than T1, particularly preferably, T2 is greater than T1+10°C or T2 is greater than T1+15°C.

[0039] Additionally, according to another aspect, the device is characterized in that hot adhesive is applied or applied by a hot adhesive application mechanism at a pressure of at least 15 bar, 20 bar, 30 bar, 40 bar, 50 bar, or 60 bar, and / or at a temperature exceeding 140°C, 150°C, 160°C, 170°C, or exceeding 190°C and / or below 250°C or below 200°C, and / or preferably by the hot adhesive application mechanism at a beat frequency below 600 Hz. Preferably, the hot adhesive has a viscosity of up to 2500 centipoise, 2000 centipoise, 1500 centipoise, or up to 1000 centipoise at a temperature of 150°C. Particularly preferred is a hot adhesive having a viscosity between 500 centipoise and 1000 centipoise or between 500 centipoise and 800 centipoise at 150°C. Preferably, the hot glue has a polymer, particularly polyethylene and / or polyalphaolefine and / or copolymers and / or polyolefins.

[0040] Another solution to the task is achieved by a machine used in the tobacco processing industry, particularly a filter tip attaching machine, a filter tip segment manufacturing machine, or a multi-segment rod manufacturing machine, which has the apparatus described above.

[0041] Advantageously, one embodiment of the machine is characterized in that the machine has at least one or more, particularly three or more, assembly devices, each of which has a feeding device for one or more product segments, and / or the machine has at least one wrapping unit, particularly a first winding unit and a second wrapping unit, for the rod-shaped product, particularly for product segments or groups of product segments.

[0042] Furthermore, the task is accomplished by a method for wrapping rod-shaped articles, particularly multi-segment rod-shaped articles or multi-segment articles, in the context of using the apparatus for wrapping rod-shaped articles as described above, and / or wherein, in order to wrap the rod-shaped articles, particularly multi-segment rod-shaped articles or multi-segment articles, continuous or quasi-continuous strips of material for cutting into strips of finite length are provided, and liquid hot glue is applied to the strips by a preferred actively or passively operable hot glue application mechanism, and / or wherein material strip segments of finite length are provided, and liquid hot glue is applied to the material strip segments by a preferred actively or passively operable hot glue application mechanism, and / or wherein rod-shaped articles, particularly multi-segment rod-shaped articles or multi-segment articles, are provided, particularly transversely conveyed, and liquid hot glue is applied to the rod-shaped articles by a preferred actively or passively operable hot glue application mechanism. To avoid repetition, reference is explicitly made to the above description. Preferably, the hot adhesive has a viscosity between 500 centipoise and 1000 centipoise, or between 500 centipoise and 800 centipoise, when applied. Preferably, the hot adhesive has a temperature between 140°C and 190°C, more preferably between 150°C and 170°C, when applied.

[0043] In one design of the method, it is advantageous that the rod-shaped article is wrapped or covered by a strip of material, wherein the strip of material has hydrophobic paper, wherein, in particular, the contact angle of the hydrophobic paper with water is between 100° and 140°.

[0044] Furthermore, according to an improved embodiment, it is preferable to use hot glue to bond or adhere the wrapped rod-shaped article in the tackbereich area of ​​the wrapped material strip segment and / or in the wrapping seal.

[0045] Furthermore, the task is accomplished by a rod-shaped smoking article (particularly having a plurality of preferably rod-shaped article segments), wherein the rod-shaped smoking article or a plurality of article segments of the smoking article are wrapped by a strip of material, wherein the wrapped strip of material is at least partially bonded with hot and / or cold glue, wherein the rod-shaped smoking article is manufactured, in particular, using the apparatus described above (particularly according to any one of claims 1 to 17) or by the method described above (particularly according to any one of claims 20 to 22). Preferably, the smoking article is manufactured using the apparatus described above or according to the method mentioned above. To avoid repetition, explicit reference is made to the above description.

[0046] Preferably, hot and / or cold adhesives are bonded or applied to areas of one, two, three, or more than three wrapped segments of the smoking article, wherein the wrapped segments are configured as NWA segments (Non-Wrapped Acetate-Segment) or Hollow-Acetate-Tube-Segment (HAT segment). Preferably, the hot and / or cold adhesives per millimeter of segment length of the NWA segment or hollow-Acetate-Tube segment have a global maximum mass relative to the entire smoking article. Preferably, the NWA segment is a self-stabilizing segment without wrapping material, which preferably contains cellulose acetate and / or triacetyl acetate. Preferably, the hollow-Acetate-Tube segment is a self-stabilizing hollow segment without wrapping material, which preferably contains cellulose acetate and / or triacetyl acetate.

[0047] Furthermore, the task is accomplished by at least one hot glue application mechanism used in an apparatus for applying hot glue to rod-shaped articles, particularly multi-segment rod-shaped articles or multi-segment articles, in the tobacco processing industry. This apparatus includes a conveying mechanism, particularly a conveying roller, for transversely conveying rod-shaped articles arranged sequentially along the transverse axis; a material strip conveying device for conveying continuous or quasi-continuous material strips; a cutting device for cutting the continuous or quasi-continuous material strips into material strip segments; and a supplying device for supplying the cut material strip segments to the transversely conveyed rod-shaped articles. One preferred embodiment, an actively operable or passively operable hot adhesive application mechanism, is configured to apply hot adhesive, particularly liquid hot adhesive or hot adhesive film, onto the conveyed material strip. And / or one, particularly another, and / or preferably an actively or passively operable hot adhesive application mechanism is provided for applying hot adhesive, particularly liquid hot adhesive or hot adhesive film, to a cut strip of material. And / or one, particularly another and / or preferably an actively operable or passively operable hot adhesive application mechanism is provided for applying hot adhesive, particularly liquid hot adhesive or hot adhesive film, to a rod-shaped article, particularly to be wrapped.

[0048] According to a preferred design, the device is constructed, in particular, according to any one of claims 1 to 17, as described above.

[0049] The description of embodiments according to the invention, together with the claims and appendices, is provided below. Figure 1 This allows for the deriving of other features of the invention. Embodiments of the invention can satisfy individual features or combinations of multiple features. Attached Figure Description

[0050] The invention will now be described with reference to the accompanying drawings and embodiments, without limiting the overall inventive concept, wherein all specific details of the invention not elaborated herein are clearly referred to in the drawings. Wherein: Figure 1 A design of a multi-segment bar manufacturing machine is schematically shown in a partial view. Detailed Implementation

[0051] Within the scope of this invention, features indicated by "especially" or "preferred" should be understood as optional features.

[0052] Figure 1 A schematic side view of a multi-segment rod manufacturing machine F is shown in part. The multi-segment rod manufacturing machine F is configured to manufacture or wrap rod-shaped smoking articles or wrapped consumable articles for the tobacco processing industry, having a plurality of sequentially arranged rod-shaped article segments in the longitudinal direction.

[0053] To wrap rod-shaped articles composed of rod-shaped sections, the multi-section rod manufacturing machine F has a laminating device (Belageinrichtung) through which continuous or quasi-continuous strips of material 20, particularly paper strips, are pulled from a spool (not shown here) and conveyed to a cutting device 30 using a pair of traction rollers. During its conveying, the strips of material 20 are, in one design, coated with an adhesive pattern made of cold glue, particularly water-based glue or PVA glue (polyvinyl acetate glue), by means of a cold glue application device (such as, for example, a raster roller).

[0054] Upstream of the cutting device 30, a hot glue application nozzle 24 (as a hot glue application mechanism) is arranged to apply hot glue to the material strip 20, for example, to apply liquid hot glue onto the material strip 20. The hot glue melts in a melting chamber (not shown here) and is conveyed to the hot glue application nozzle 24 through a conduit connected to the hot glue application nozzle 24. The application of liquid hot glue is preferably performed in a dotted pattern in the form of a predetermined hot glue image, and / or in a strip pattern, such as in the form of a hot glue strip (Heißleim-Raupe). Preferably, the distance between the hot glue application nozzle 24 and the conveyed material strip 20 is less than 3 cm, preferably less than 2 cm or 1 cm. In one design, the hot glue application nozzle 24 may have a dotted outlet opening for the hot glue, wherein preferably, particularly a circular outlet opening, the diameter of which is 2 mm or less, particularly 1 mm. In another design, the outlet opening of the hot glue application nozzle for the hot glue is configured as a slit nozzle.

[0055] After hot glue is applied through the hot glue application nozzle 24, the material strip 20 is conveyed to the cutting device 30, which includes a suction roller 32 and a cutting roller 34 that cooperates with the suction roller 32. The cutting roller 34 has radially arranged blades that are inserted into the recesses of the suction roller 32 to cut the arranged material strip 20 into material strip segments, particularly paper sheets or wrapping sheets, on the circumference of the suction roller 32.

[0056] The multi-segment rod manufacturing machine F has conveying rollers 41 and 42 for conveying multi-segment rod-shaped product groups (not shown here) in the transverse direction to an assembly roller 43 arranged at the cutting device 30. Material strips with hot glue (and / or cold glue) are attached to the rod-shaped product groups on the assembly roller 43.

[0057] After the material strips are attached to the rod-shaped product assembly or rod-shaped product segment assembly, the rod-shaped product assembly is conveyed to a folding star wheel 44 or similar device, whereby the folding star wheel 44 presses the leading edge of the rod-shaped product assembly onto the product assembly. Subsequently, the rod-shaped product assembly is delivered from the assembly roller 43 to the subsequent winding roller 45, where a winding device 46 is arranged to wind the attached material strips around the rod-shaped product assembly during the winding process.

[0058] Subsequently, the wound rod-shaped product is further conveyed from the winding roller 45 along the transverse direction via additional conveyor rollers 47, 48, and 49 for further processing. A cutting unit 50 is also provided at the conveyor roller 49 for cutting the rod-shaped product, preferably from the middle.

[0059] Furthermore, a detection sensor 26 is arranged downstream of the hot glue application nozzle 24 for, for example, checking the position and / or structure of the hot glue applied to the material strip 20. In one design, the detection sensor 26 and the controller of the hot glue application nozzle 24 may be components of an adjustment device for the hot glue application nozzle 24 to apply a predetermined hot glue image onto the material strip 20.

[0060] In one design of the multi-segment bar manufacturing machine F, a heat source, such as a heat radiator or similar device, can be arranged downstream of the hot glue application nozzle 24 to further heat the applied hot glue or maintain it at an elevated temperature. In another alternative embodiment, instead of liquid hot glue, hot glue film segments or hot glue films can be applied to the material strip 20, for example, using appropriate processing equipment. Furthermore, in another embodiment, a heat source is provided, for example, between the suction roller 32 and the folding star wheel 44, or between the folding star wheel 44 and the transfer area (between the assembly roller 43 and the winding roller 45), to heat the hot glue on the attached material strip segments.

[0061] Within the scope of this invention, improved winding of, for example, hydrophobic material strips around rod-shaped articles is achieved by using hot glue. Furthermore, other heavier or thicker material strips can be attached to and wound around the rod-shaped articles, where improved and durable winding seals are achieved particularly during the winding process using hot glue. This can also reliably wind segments of article assemblies, such as hollow segments, particularly those with rough surfaces, like hollow cellulose acetate tubes (HAT segments) and / or NWA segments (non-coated cellulose acetate segments).

[0062] In one embodiment not shown here, a hot adhesive application mechanism, such as a rotating nozzle body or hot adhesive nozzle, may be arranged upstream of the cutting device 30 at the assembly roller 43 to apply hot adhesive to the rod-shaped article before the material strip is attached to it. Alternatively, the material strip attached to the rod-shaped article by means of the suction roller 32 may be coated with cold adhesive.

[0063] In another design not shown here, hot and cold adhesive can be applied simultaneously or at staggered times to the conveyed quasi-continuous or continuous strips of material or cut segments of material, depending on the structure of the multi-segment rod-shaped product assembly, by means of a corresponding application roller or application mechanism.

[0064] Furthermore, in another embodiment of the multi-segment bar manufacturing machine F (not shown here), hot adhesive can be applied to the attached material strips or bar articles directly on the winding roller before the bar articles are wound or wrapped. For example, hot adhesive can be applied to the material strips and / or the group of bar articles to be wound via corresponding supply openings in the winding hand of the winding device. Relatedly, in another embodiment, the winding hand of the winding device can be heated for winding the group of bar articles.

[0065] Furthermore, within the scope of this invention, in another design, a transfer mechanism may be arranged at the hot adhesive application nozzle 24 to apply hot adhesive to the conveyed material strip 20. This mechanism may include, for example, a transfer roller or transfer wheel with recesses or cavities for receiving hot adhesive from the hot adhesive application nozzle 24, so as to transfer the received hot adhesive to the material strip 20. Preferably, the hot adhesive is applied dot-like, particularly in the area of ​​the wrapping seal, to the material strip 20 by this transfer mechanism.

[0066] Furthermore, within the scope of this invention, in another design embodiment, hot glue is applied directly from the hot glue nozzle onto the material strip within the area of ​​a vibrator configured for conveying the material strip, wherein the elliptical shape of the vibrator and the resulting variation in the distance between the material strip and the hot glue nozzle are utilized in particular to generate a hot glue image on the material strip.

[0067] In another design, to apply hot adhesive to the cut material strips, it is conceivable that a hot adhesive application mechanism is used to apply the hot adhesive to the material strips cut on the suction roller 32. In another embodiment, hot adhesive is applied to the cut material strips on the winding roller 45.

[0068] Furthermore, within the scope of this invention, the hot adhesive is applied in the form of a hot adhesive film or hot adhesive film segments to strips of material and / or cut segments of material strips and / or (particularly) rod-shaped articles or groups of articles to be wrapped. For this purpose, it can be specified that the hot adhesive film is unwound from a wicklung or roller, such as a spool, and cut into hot adhesive film segments using a suitable cutting device, and applied accordingly. Additionally, in one improvement, the hot adhesive film can also be applied to a carrier material, such as silicone paper.

[0069] All mentioned features, as well as those individually deriveable from the accompanying drawings and those disclosed in combination with other features, are considered essential to the invention, both individually and in combination. Embodiments according to the invention can be satisfied through individual features or combinations of features.

[0070] List of reference numerals in the attached diagram: 20 Material Bars 24 Hot glue application nozzle 26 Detection Sensors 30 Cutting device 32 Suction Rollers 34 cutter rollers 41, 42 Conveyor Rollers 43 Assemble the rollers 44 Folding Star Wheel 45 winding rollers 46 Winding device 47, 48, 49 Conveyor rollers 50 cutting units F Multi-segment Rod Manufacturing Machine.

Claims

1. An apparatus for wrapping rod-shaped products in the tobacco processing industry, wherein, The system includes conveying mechanisms (41, 42, 43, 45) for transversely conveying rod-shaped products arranged sequentially along the transverse axis. It also includes a material strip conveying device for conveying continuous or quasi-continuous material strips (20), and a cutting device (30) for cutting the continuous or quasi-continuous material strips (20) into material strip segments. Furthermore, it includes a supply device (32) for supplying the cut material strip segments to the rod-shaped products being transversely conveyed. The device includes a hot adhesive application mechanism (24) for applying hot adhesive to the conveyed material strip (20). And / or one or more hot adhesive application mechanisms (24) are provided for applying hot adhesive to the cut material strip segments, And / or one or another hot adhesive application mechanism (24) is provided for applying hot adhesive to the rod-shaped article or the rod-shaped article to be wrapped.

2. The apparatus according to claim 1, characterized in that, A winding device is provided after the supply device (32) relative to the transverse axis of the rod-shaped product in the conveying direction, for winding the rod-shaped product with a strip of material attached to the rod-shaped product.

3. The apparatus according to claim 2, characterized in that, The winding device is configured as a winding device with a winding table for winding the rod-shaped article with a strip of material attached to the rod-shaped article.

4. The apparatus according to claim 2, characterized in that, The wrapping device has the hot adhesive application mechanism (24) for applying hot adhesive to the rod-shaped article.

5. The apparatus according to claim 4, characterized in that, The hot glue application mechanism (24) is configured and / or integrated for applying hot glue to the rod-shaped article in the winding block of the winding device, and / or the wrapping device has the hot glue application mechanism (24) for applying hot glue to the cut material strip segment.

6. The apparatus according to claim 1, characterized in that, The conveying mechanisms (41, 42, 43, 45) are configured as conveying rollers (41, 42, 43, 45) for transversely conveying rod-shaped products arranged sequentially along the transverse axis. And / or a hot glue application mechanism (24) for applying hot glue or the hot glue application mechanism (24) for applying hot glue is configured to be an actively operable or passively operable hot glue application mechanism (24). And / or the hot glue application mechanism (24) for applying hot glue to the conveyed material strip (20) is configured to apply liquid hot glue or hot glue film to the conveyed material strip (20). And / or the hot glue application mechanism (24) for applying hot glue to the cut material strip segment is configured as a hot glue application mechanism (24) for applying liquid hot glue or hot glue film to the cut material strip segment. And / or the hot glue application mechanism (24) for applying hot glue to the rod-shaped article or the rod-shaped article to be wrapped is configured as a hot glue application mechanism (24) for applying liquid hot glue or hot glue film to the rod-shaped article or the rod-shaped article to be wrapped.

7. The apparatus according to claim 1, characterized in that, The hot glue application mechanism (24) for applying hot glue to the conveyed material strip (20) has a nozzle and / or a transfer mechanism and / or a transfer roller for the hot glue, and / or the hot glue application mechanism (24) for applying hot glue to the cut material strip segment has a nozzle and / or a transfer mechanism and / or a transfer roller for the hot glue, and / or the hot glue application mechanism (24) for applying hot glue to the rod-shaped article or the rod-shaped article to be wrapped has a nozzle and / or a transfer mechanism and / or a transfer roller for the hot glue.

8. The apparatus according to claim 1, characterized in that, The hot glue application mechanism (24) for applying hot glue to the conveyed material strip (20) is adjustable or can be adjusted for applying the hot glue.

9. The apparatus according to claim 8, characterized in that, The adjustment of the hot adhesive application mechanism (24) is performed according to the conveying speed of the material strip (20).

10. The apparatus according to claim 1, characterized in that, The hot glue application mechanism (24) for applying hot glue to the cut material strip segment is adjustable or can be adjusted for applying the hot glue.

11. The apparatus according to claim 10, characterized in that, The adjustment of the hot adhesive application mechanism (24) is performed according to the conveying speed of the material strip segment.

12. The apparatus according to claim 1, characterized in that, The hot adhesive application mechanism (24) for applying hot adhesive to the rod-shaped article is adjustable or can be adjusted for applying the hot adhesive.

13. The apparatus according to claim 12, characterized in that, The adjustment of the hot glue application mechanism (24) is performed according to the conveying speed of the rod-shaped product or the rod-shaped product being conveyed transversely.

14. The apparatus according to claim 1, characterized in that, The hot glue application mechanism (24) for applying hot glue to the conveyed material strip (20) is configured to apply a predetermined and / or quantitative or pre-quantitative amount of hot glue, and / or the hot glue application mechanism (24) for applying hot glue to the cut material strip segment is configured to apply a predetermined and / or quantitative or pre-quantitative amount of hot glue, and / or the hot glue application mechanism (24) for applying hot glue to the rod-shaped article or the rod-shaped article to be wrapped is configured to apply a predetermined and / or quantitative or pre-quantitative amount of hot glue.

15. The apparatus according to claim 1, characterized in that, The device has a cold glue application device for applying cold glue to the continuous or quasi-continuous strip of material (20).

16. The apparatus according to claim 15, characterized in that, The cold glue application device is arranged upstream of the supply equipment and / or upstream of the hot glue application mechanism (24) for applying hot glue to the conveyed material strip (20).

17. The apparatus according to claim 1, characterized in that, Downstream of the hot glue application mechanism (24) for applying hot glue to the conveyed material strip (20) is provided a heating device and / or a detection sensor (26) for the hot glue applied to the material strip (20) and / or a detection sensor (26) for acquiring glue images or hot glue images.

18. The apparatus according to claim 17, characterized in that, The device has a control or adjustment device, wherein the control or adjustment device is connected to the hot glue application mechanism (24), the cutting device and the detection sensor (26). Alternatively, the device may have a control or adjustment device, wherein the control or adjustment device is connected to the hot glue application mechanism (24), the cutting device and the detection sensor (26) to control or adjust the cutting position of the material strip (20) to be cut relative to the hot glue trajectory, wherein the distance between the cutting edge and the hot glue trajectory is greater than 0.1 mm, 0.2 mm, 0.3 mm or 0.5 mm, and / or less than 8 mm, 7 mm, 6 mm or 5 mm.

19. The apparatus according to claim 1, characterized in that, Downstream of the hot glue application mechanism (24) for applying hot glue to the cut material strip segment, there is a heating device and / or a detection sensor for the hot glue applied to the material strip segment and / or a detection sensor for acquiring glue images or hot glue images.

20. The apparatus according to claim 1, characterized in that, Downstream of the hot adhesive application mechanism (24) for applying hot adhesive to the rod-shaped article or the rod-shaped article to be wrapped, there is a heating device and / or a detection sensor for the hot adhesive applied to the rod-shaped article and / or a detection sensor for acquiring an adhesive image or a hot adhesive image.

21. The apparatus according to claim 1, characterized in that, The hot glue application mechanism (24) for applying hot glue to the conveyed material strip (20) is configured to apply a predetermined hot glue pattern or only one hot glue droplet or multiple hot glue droplets or multiple hot glue droplets arranged linearly in sequence and / or side by side and / or at least one hot glue strip or at least one linear hot glue strip and / or at least one hot glue film strip to the material strip (20).

22. The apparatus according to claim 21, characterized in that, The hot adhesive pattern is applied to or onto the material strip (20) at equal or alternating equal intervals.

23. The apparatus according to claim 1, characterized in that, The hot glue application mechanism (24) for applying hot glue to the cut material strip segment is configured to apply a predetermined hot glue pattern or only one hot glue droplet or multiple hot glue droplets or multiple hot glue droplets arranged linearly in sequence and / or side by side and / or at least one hot glue strip or at least one linear hot glue strip and / or at least one hot glue film strip to the material strip segment.

24. The apparatus according to claim 1, characterized in that, The hot glue application mechanism (24) for applying hot glue to the rod-shaped article or the rod-shaped article to be wrapped is configured to apply a predetermined hot glue pattern or only one hot glue droplet or multiple hot glue droplets or multiple hot glue droplets arranged linearly in sequence and / or side by side and / or at least one hot glue strip or at least one linear hot glue strip and / or at least one hot glue film strip to the article.

25. The apparatus according to claim 1, characterized in that, For applying liquid hot adhesive, the hot adhesive application mechanism (24) for applying hot adhesive to the conveyed material strip (20) has: a supply unit with a melting chamber for the hot adhesive, and one or more connecting pipes or hoses connected to the supply unit for one or more application nozzles; and / or for applying liquid hot adhesive, the hot adhesive application mechanism (24) for applying hot adhesive to the cut material strip segment has: a supply unit with a melting chamber for the hot adhesive, and one or more connecting pipes or hoses connected to the supply unit for one or more application nozzles; and / or for applying liquid hot adhesive, the hot adhesive application mechanism (24) for applying hot adhesive to the rod-shaped article has: a supply unit with a melting chamber for the hot adhesive, and one or more connecting pipes or hoses connected to the supply unit for one or more application nozzles.

26. The apparatus according to claim 1, characterized in that, Hot glue was applied or applied by the hot glue application mechanism (24) at a pressure of 40 bar, 50 bar or 60 bar, and / or at a temperature of more than 170°C or more than 190°C and / or less than 250°C, and / or by the hot glue application mechanism (24) at a beat frequency of less than 600 Hz.

27. The apparatus according to claim 1, characterized in that, The device is configured to wrap multi-segment rod-shaped products or multi-segment products for the tobacco processing industry.

28. Machinery for the tobacco processing industry, having the means according to any one of claims 1 to 27.

29. The machine according to claim 28, characterized in that, The machine is configured as a filter tip assembly machine, a filter tip segment manufacturing machine, or a multi-segment bar manufacturing machine.

30. The machine according to claim 28, characterized in that, The machine has at least one or more, or three or more, assembly devices, each assembly device having a feeding device for one or more product segments, and / or the machine has at least one wrapping unit or a first winding unit and a second wrapping unit for the rod-shaped product or for product segments or groups of product segments.

31. A method for wrapping rod-shaped articles of tobacco processing industry using the apparatus according to any one of claims 1 to 30, and / or wherein, For wrapping rod-shaped articles in the tobacco processing industry, continuous or quasi-continuous material strips (20) for cutting into material strips of finite length are provided, and hot adhesive is applied to the material strips (20) by a hot adhesive application mechanism (24), and / or wherein material strip segments of finite length are provided, and hot adhesive is applied to the material strip segments by a hot adhesive application mechanism (24), and / or wherein rod-shaped articles or rod-shaped articles conveyed transversely are provided, and hot adhesive is applied to the rod-shaped articles by a hot adhesive application mechanism (24).

32. The method according to claim 31, characterized in that, Liquid hot adhesive is applied to the material strip (20) by means of the hot adhesive application mechanism (24) or by means of the hot adhesive application mechanism (24) that can be operated actively or by means of the hot adhesive application mechanism (24) or by means of the hot adhesive application mechanism (24) or by means of the hot adhesive application mechanism (24) that can be operated actively or by means of the hot adhesive application mechanism (24) or by means of the hot adhesive application mechanism (24) that can be operated actively or by means of the hot adhesive application mechanism (24) or by means of the hot adhesive application mechanism (24) that can be operated actively or by means of the hot adhesive application mechanism (24) and ...

33. The method according to claim 31, characterized in that, The rod-shaped article is wrapped or covered by a strip of material, wherein the strip of material has hydrophobic paper.

34. The method according to claim 33, characterized in that, The hydrophobic paper has a water contact angle between 100° and 140°.

35. The method according to claim 31, characterized in that, The wrapped rod-shaped article is bonded or adhered with hot glue, or the wrapped rod-shaped article is bonded or adhered with hot glue in the adhesive area of ​​the wrapped material strip segment and / or in the wrapping seal.

36. The method according to claim 31, characterized in that, As rod-shaped products in the tobacco processing industry, multiple rod-shaped products or multiple product segments are wrapped.

37. A stick-shaped smoking article or a stick-shaped smoking article having multiple article segments at the ends or having multiple stick-shaped article segments, wherein the stick-shaped smoking article or the multiple article segments of the smoking article are wrapped by a material strip segment, wherein the wrapped material strip segment is at least partially bonded with hot adhesive.

38. The stick-shaped smoking article according to claim 37, characterized in that, The stick-shaped smoking article is manufactured using the device according to any one of claims 1 to 30 or by the method according to any one of claims 31 to 36.

39. The stick-shaped smoking article according to claim 37, characterized in that, Hot adhesive is applied to or onto the area of ​​one, two, three or more wrapped sections of the smoking article, wherein the wrapped sections are configured as NWA sections (non-wrapped cellulose acetate sections) or hollow cellulose acetate tube sections (HAT sections).

40. At least one hot glue application mechanism (24) for the application of hot glue in an apparatus for wrapping rod-shaped articles in the tobacco processing industry, wherein, A conveying mechanism (41, 42, 43, 45) is provided for transversely conveying rod-shaped products arranged sequentially along the transverse axis. The mechanism includes: a material strip conveying device for conveying continuous or quasi-continuous material strips (20); and a cutting device (30) for cutting the continuous or quasi-continuous material strips (20) into material strip segments. A supply device (32) is also provided for supplying the cut material strip segments to the rod-shaped products being conveyed transversely. Among them, a hot adhesive application mechanism (24) is configured to apply hot adhesive to the conveyed material strip (20). And / or one hot glue application mechanism (24) or another hot glue application mechanism (24) is configured to apply hot glue to the cut material strip segment, And / or one hot glue application mechanism (24) or another hot glue application mechanism (24) is configured to apply hot glue to the rod-shaped article or the rod-shaped article to be wrapped.

41. The use according to claim 40, characterized in that, The conveying mechanisms (41, 42, 43, 45) are configured as conveying rollers (41, 42, 43, 45) for transversely conveying rod-shaped products arranged sequentially along the transverse axis. And / or a hot glue application mechanism (24) for applying hot glue or said hot glue application mechanism (24) for applying hot glue is configured to be actively operable or operable hot glue application mechanism (24). And / or the hot glue application mechanism (24) for applying hot glue to the conveyed material strip (20) is configured to apply liquid hot glue or hot glue film to the conveyed material strip (20), And / or the hot glue application mechanism (24) for applying hot glue to the cut material strip segment is provided as a hot glue application mechanism (24) for applying liquid hot glue or hot glue film to the cut material strip segment. And / or the hot adhesive application mechanism (24) for applying hot adhesive to the rod-shaped article or the rod-shaped article to be wrapped is configured to apply liquid hot adhesive or hot adhesive film to the rod-shaped article or the rod-shaped article to be wrapped. And / or as rod-shaped products in the tobacco processing industry, multi-segment rod-shaped products or multi-segment products are wrapped.

42. The use according to claim 40, characterized in that, The device is constructed according to any one of claims 1 to 27.

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