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    • 专利摘要:
    METHOD AND APPARATUS FOR THE MANUFACTURING OF SMOKING ITEMS. The invention provides method and apparatus for manufacturing smoking articles (100). Each first multi-segment component is formed comprising a combustible heat source (102), an aerosol forming substrate (106) and an air flow directing segment (108) by feeding a stream of combustible heat sources, aerosol forming substrates (106) and airflow directing segments (108) via a movable delivery path, compacting the segments into groups; involving each group; and cutting the web of material between groups to separate the first components of multiple individual segments from one another. A stream of first components from multiple segments is fed to a receiving device, and a stream of second components from multiple segments, each comprising a nozzle and at least one additional segment, is also fed to the receiving device. First and second multi-segment components are combined by wrapping the components in a web material to form an individual smoking article having a combustible heat source at a first end and a nozzle at a second end.
    公开号:BR112014027012B1
    申请号:R112014027012-0
    申请日:2013-03-15
    公开日:2021-05-25
    发明作者:Oleg Mironov
    申请人:Philip Morris Products S.A.；
    IPC主号:
    专利说明:

    [001] The present invention relates to a method for manufacturing smoking articles in a multi-stage process. In particular, the invention relates to a method for combining components from multiple segments.
    [002] Apparatus and processes for manufacturing smoking articles consist of a plurality of components known in the art. For example, a wrapping process can be used in which smoking articles and components are substantially perpendicularly aligned with reference to the direction of travel. Alternatively, a linear process can be used, in which components are substantially longitudinally aligned along the direction of travel. In some arrangements a combination of two processes is used, for example the combination can be performed as a winding process and the external wrapping can be performed as a linear process. However, known manufacturing apparatus and processes are not suitable for manufacturing smoking articles in a multi-stage process where at least one component of the smoking article needs to be prevented from coming into contact with at least one other component of the smoking article. smoke. Known apparatus and manufacturing processes for manufacturing smoking articles having a fuel heat source utilize a linear process in which multiple components are supplied individually, and thus are slow compared to manufacturing processes. conventional cigarettes.
    [003] EP 2 210 509 A1 describes such a method and apparatus for combining the components of a smoking article, such as heat source, aerosol generating substrate, expansion chamber, for the production of smoking articles without tip. The method comprises feeding a stream of components along a mobile distribution path; compacting the component stream into groups of two or more different components, each group corresponding to a discrete smoking article, where the components within a group rest on one another and where there is a predefined space between a front group of components and a rear group of components, wrap the components in a material web, and cut the material web in each space between the component groups. EP 2 210 509 A1 teaches combining all components, except for the mouthpiece, within each of the smoking articles into linear groups of components, which are then wrapped, to form the non-tipped smoking articles. The tipless smoking articles are then attached to single nozzles by wrapping the tipless smoking article and the nozzle with filter paper in a filter forming machine to produce a bedded smoking article.
    [004] It is an object of the present invention to provide an apparatus and method suitable for the manufacture of smoking articles having a combustible heat source and a plurality of other components that reduce the risk of the heat source coming into contact with the nozzle of the smoking article. It would also be desirable to provide a method and apparatus suitable for manufacturing such smoking articles having a combustible heat source and a plurality of other components at a relatively high speed compared to known apparatus and manufacturing processes.
    [005] According to a first aspect of the present invention, a method of manufacturing smoking articles is provided. The method comprises forming first components from multiple segments, each comprising a combustible heat source, an aerosol forming substrate, and an airflow directing segment. The first multi-segment component is formed by: feeding a stream of combustible heat sources, aerosol forming substrates and airflow directing segments along a mobile delivery path; compaction into groups of the fuel heat sources, the aerosol forming substrates and the airflow directing segments, each group corresponding to a discrete multi-segment first component, involving the fuel heat sources, aerosol forming substrates, and airflow directing segments in a material screen; and cutting the web of material between groups to separate the first components of multiple individual segments from one another.
    [006] As used herein, the term "aerosol-forming substrate" is used to describe a substrate capable of releasing volatile compounds upon heating, which can form an aerosol.
    [007] As used herein, the term "airflow directing segment" refers to the adjacent downstream segment of the aerosol forming substrate, which defines a portion of the airflow path that is followed by air inhaled by the user during the use of the article for smoking.
    [008] As used herein, the terms "upstream" and "front" and "downstream" and "rear" are used to describe the relative positions of components, or parts of components, of combustible heat sources and smoking articles according to the invention with respect to the direction of air passed through the combustible heat sources and smoking articles during use thereof.
    [009] The method further comprises feeding a stream of first components from multiple segments to a receiving device, and feeding a stream of second components from multiple segments, each corresponding to a nozzle and at least one additional segment, to the receiving device. The first multi-segment component and a second multi-segment component are combined by wrapping the first multi-segment component and the second multi-segment component in a web material to form an individual smoking article having a combustible heat source in a first end and a mouthpiece on a second end.
    [0010] Advantageously, the provision of such a manufacturing method increases the manufacturing speed of smoking articles having a combustible heat source. Additionally, by manufacturing the first multi-segment component comprising the heat source separately from the second multi-segment component comprising the mouthpiece, the risk of the heat source contacting the mouthpiece of the smoking article is reduced.
    [0011] The method of the present invention can be used to manufacture the smoking articles in a three-stage process. The first stage is for forming a first multi-segment component, the second stage is for feeding a first multi-stage component and a second multi-segment component into a combination apparatus, and the third stage is for combining the two multi-stage components segments together to form the smoking article.
    [0012] The step of feeding the stream of segments along the mobile distribution path preferably comprises interleaving each of the three types of segments comprising the first component of multiple segments, so that the segments in the distribution path are in an order desired and predetermined. Preferably, the segments are interspersed along the mobile distribution path so that the first multi-segment component comprises a combustible heat source at a first end, an airflow directing segment at a second end and a forming substrate between the combustible heat source and the airflow directing segment.
    [0013] Preferably, the segments in the distribution path have their longitudinal geometric axes substantially aligned with each other and with the direction of movement of the distribution path. Such a linear forming process is advantageous as it causes minimal or no damage to components within each first multi-segment component.
    [0014] As used herein, the term "longitudinal" is given in reference to the length direction of the smoking article.
    [0015] Preferably, the individual combustible heat sources are fed by a hopper. Combustible heat sources can be manufactured from a brittle material, such as compressed particulate material, which may have a tendency to crack, break or fragment when cut with a conventional blade. Therefore, since the combustible heat sources cannot be cut cleanly, advantageously the present method provides the combustible heat sources individually. The combustible heat sources are preferably substantially cylindrical and comprise a heat-conducting backing coating on an end face. The method preferably comprises aligning the combustible heat sources within the hopper so that the combustible heat sources are fed to the mobile distribution path with the backing of each combustible heat source in a substantially equal orientation.
    [0016] Each heat source can be a carbon or carbonaceous based heat source. Preferably, the heat source is cylindrical. In that case, each heat source in the distribution path preferably has its longitudinal geometric axis substantially aligned with the direction of movement of the distribution path. The heat source may optionally include one or more air flow channels therethrough.
    [0017] As used herein, the term "carbon-based heat source" is used to describe a heat source consisting primarily of carbon. Fuel carbon-based heat sources for use in smoking articles according to the invention may have a carbon content of at least about 50%, preferably at least about 60%, more preferably at least about 70%, more preferably at least about 80% dry weight of the carbon fuel based heat source.
    [0018] As used herein, the term "carbonaceous" is used to describe a combustible heat source comprising carbon. Preferably, the carbonaceous combustible heat sources for use in smoking articles according to the invention have a carbon content of at least about 35%, more preferably at least about 40%, more preferably at least about 45 % dry weight of the combustible heat source.
    [0019] As used herein, the term "airflow channel" is used to describe a channel extending along the length of a combustible heat source through which air can be drawn downstream for inhalation by a user.
    [0020] As used herein, the term "airflow path" is used to describe a route along which air can be drawn through the smoking article for inhalation by a user.
    [0021] Each aerosol forming substrate may comprise tobacco material. Preferably, each aerosol forming substrate is cylindrical. In that case, each substrate in the distribution path preferably has its longitudinal geometric axis substantially aligned with the direction of movement of the distribution path.
    [0022] Each airflow directing segment is downstream of the aerosol forming substrate when the first multi-segment component is within the smoking article.
    [0023] Preferably, the step of feeding a stream of combustible heat sources, aerosol forming substrates and airflow directing segments comprises retaining the segments in the delivery path. In a preferred embodiment, the step of retaining segments in the dispensing path includes the use of a vacuum.
    [0024] Preferably, the step of forming the first multi-segment component further comprises cutting at least one segment of the first multi-segment component in-line. In a preferred embodiment, the aerosol forming substrate is cut in-line. Additionally or alternatively, the airflow directing segment is cut in-line.
    [0025] As used herein, the term "in-line" connotes that the operation is conducted as a discrete step in the manufacturing process of a multi-segment component. As such, the in-line cuttable segments of the smoking article can be supplied as a substantially continuous stream of material that is cut off as segments are fed to the mobile dispensing path.
    [0026] In an alternative embodiment, the first multi-segment component further comprises an expansion chamber downstream of the airflow directing segment. In this alternative embodiment, the first multi-segment component comprises four segments, preferably arranged so that the combustible heat source is provided at a first end, and the expansion chamber is provided at the second end. In this embodiment, the aerosol forming substrate is provided adjacent to the combustible heat source and the airflow directing segment is provided adjacent to the expansion chamber.
    [0027] The expansion chamber preferably forms a part of the air flow path of the smoking article. The inclusion of an expansion chamber advantageously allows for additional cooling of the aerosol generated by transferring heat from the fuel heat source to the aerosol forming substrate. The expansion chamber also advantageously allows the overall length of smoking articles according to the invention to be adjusted to a desired value, for example to a length similar to that of conventional cigarettes, by a suitable choice of the length of the expansion chamber. . In one embodiment, the expansion chamber may be a hollow tube having a transverse shape equivalent to the transverse shape.
    [0028] In the alternative embodiment, the second multi-segment component preferably comprises a mouthpiece and a filter segment.
    [0029] Preferably, in compacting into groups of the combustible heat sources, the aerosol forming substrates and the airflow directing segments, there is a predefined space between a front group of segments and a rear group of segments.
    [0030] In one embodiment, the step of compacting the stream from segments into groups of segments comprises: separating the stream from segments into groups, each group comprising a combustible heat source, an aerosol forming substrate, and a targeting segment. airflow, where each group corresponds to a first discrete multi-segment component; compacting the segments into a group so that they support each other; and setting the predefined space between a front group of segments and a rear group of segments.
    [0031] Preferably, the step of compacting the segments within a group so that they abut each other comprises compacting the segments so that the aerosol forming substrate is compressed by the fuel heat source and the flow-directing segment of air.
    [0032] The predefined space size is the desired size between the groups of segments corresponding to the first components of multiple discrete segments. The material screen is cut into each space. Therefore, the size of each gap is preferably accurate, as an imprecise gap can result in damage to the cutting means. The space should be large enough so that the cutting device can cut the material web, but small enough so as not to waste material web. In one modality, the default gap is about 1 mm +/- 0.5 mm, that is, between about 0.5 mm and 1.5 mm. Even more preferably, the predefined gap is between about 0.8 mm and 1.2 mm.
    [0033] Preferably, the compaction device comprises: a first wheel having circumferentially spaced fixed extensions for separating the stream from segments into groups containing a combustible heat source, an aerosol forming substrate and an airflow directing segment, where each group corresponds to a first discrete multi-segment component; a second wheel, downstream of the first wheel, having circumferentially spaced movable extensions, more closely spaced than the fixed extensions on the first wheel, for compacting the segments into a group so that they abut each other; and a third wheel, downstream of the second wheel, having circumferentially spaced movable extensions for configuring the predefined space between a front group of segments and a rear group of segments.
    [0034] Preferably, the step of wrapping the group of first multi-segment components in a web of material comprises wrapping the components in a web of paper. Preferably, the web of material comprises pre-applied heat conducting elements, for example pieces of aluminum foil, spaced along the interior of the web of material. Preferably, the pre-applied heat conduction elements are positioned such that the heat conduction element overlies at least a portion of the combustible heat source and at least a portion of the aerosol forming substrate.
    [0035] Preferably, the segments are substantially cylindrical, with a circular or elliptical cross section.
    [0036] In a particularly preferred embodiment, the decombining step further comprises: receiving sets of discrete multi-segment first components, each set of discrete multi-segment first components comprising two multi-segment first components; separating, along the longitudinal geometric axis of the first multi-segment components, the first multi-segment components in each set of discrete multi-segment first components, receiving, between the separate multi-segment first components, a set of second components of multiple discrete segments, each set of discrete multiple segment second components comprising two second multiple segment components joined so that the nozzles of each second multiple segment component are adjacent to each other; aligning the longitudinal axes of the first and second multi-segment components on a combination drum; the compression of the first and second components of multiple segments into a group; wrapping the group in the web material to form a double smoking article; and cutting the double smoking article between the mouths of the two second multi-segment components to form the individual smoking articles.
    [0037] Advantageously, the provision of discrete multi-segment second components comprising two joined second multi-segment components, thus manufacturing double smoking articles, allows the manufacturing process to operate at a greater speed compared to manufacturing of smoking articles. single smoking.
    [0038] In this particularly preferred embodiment, preferably the method further comprises, after the first multi-segment components are cut, rotating each alternate multi-segment first component so that each set of multi-segment first components is received with combustible heat sources of each first multi-segment component facing in opposite directions.
    [0039] Preferably, during the step of combining the first multi-segment component and the second multi-segment component, the first multi-segment component is further wrapped with an external heat conduction element. The external heat conducting element can be formed from any heat resistant material or combination of materials with a suitable thermal conductivity. Preferably, the external heat conducting element has a thermal conductivity of between about 10 Watts per meter Kelvin (W/(m»K)) and about 500 Watts per meter Kelvin (W/(m»K)), plus preferably between about 15 Watts per meter Kelvin (W/(m»K)) and about 400 Watts per meter Kelvin (W/(m»K)), at 23°C and a relative humidity of 50% as measured using the modified transient plane source method (MTPS). Suitable external heat conducting elements for use in smoking articles in accordance with the invention include, but are not limited to: foil wraps such as, for example, aluminum foil wraps, steel wraps, foil wraps. iron and copper foil wraps; and alloy foil wraps.
    [0040] In a particularly preferred embodiment, the first multi-segment component is further enveloped with an external heat conducting element comprising one or more layers of a thermally reflecting material such as aluminum or steel. As used herein, the term "thermally reflective material" refers to a material that has a relatively high thermal reflectivity and a relatively low heat emission so that the material reflects a greater proportion of incident radiation from its surface than it emits . Preferably, the material reflects more than 50% incident radiation, more preferably more than 70% incident radiation and most preferably more than 75%.
    [0041] Alternatively, the first multi-segment component is further enveloped with an external heat conducting element comprising one or more layers of a thermally reflecting material before or after the first multi-segment component and the second multi-segment component are involved in the web material to form the smoking article.
    [0042] Preferably, the screen material used to help form the smoking article is filter paper. Preferably, the filter material comprises an adhesive pre-applied on one side so that the filter paper adheres to the first multi-segment component and the second multi-segment component.
    [0043] The method may further comprise receiving multiple second multi-segment components, wherein the multiple multi-segment components comprise four, eight or more second multi-segment components. In that embodiment, the method preferably further comprises cutting multiple second multi-segment components to provide sets of discrete multi-segment second components, each set comprising two multi-segment components joined so that the nozzles of each second multi-segment component are adjacent to each other.
    [0044] Preferably, the mouthpiece of the second multi-segment component is fabricated from cellulose acetate tow.
    [0045] Preferably, the additional segment of the second multi-segment component may comprise an expansion chamber or a filter segment. In a particularly preferred embodiment, each second multi-segment component comprises a nozzle at a first end of the second multi-segment component, an expansion chamber at a second end of the second multi-segment component, and a filter segment adjacent to the nozzle and the expansion chamber. Preferably, the longitudinal axes of the nozzle, the filter segment and the expansion chamber are substantially aligned. In one embodiment, the filter segment can be an aerosol cooling segment, manufactured from, for example, polylactic acid (PLA).
    [0046] Preferably, the method further comprises providing perforations circumferentially around the first multi-segment component. Preferably, perforations are provided during the step of wrapping the first multi-segment component and the second multi-segment component in the web material. Alternatively, perforations are provided before or after the first multi-segment component and second multi-segment component are enveloped in the web material to form the smoking article. Preferably, the perforations are provided using a laser.
    [0047] According to a further aspect of the present invention, an apparatus for manufacturing the smoking articles is provided. The apparatus comprises means for forming first components from multiple segments, each comprising at least one combustible heat source, an aerosol forming substrate, and an airflow directing segment. The forming device comprises: feed means for feeding a stream of combustible heat sources, aerosol forming substrates and air flow directing segments along a mobile delivery path; compaction means for compacting the combustible heat sources, the aerosol forming substrate and the airflow directing segments into groups, each group corresponding to a discrete multi-segment first component; enveloping means for enclosing the combustible heat sources, aerosol forming substrates, and airflow directing segments in a web of material; and cutting means for cutting the web of material between groups to separate the first components of multiple individual segments from one another. The apparatus further comprises: a first power assembly for feeding a stream of second multi-segment components, each comprising a mouthpiece and at least one additional segment; and combining means for combining a first multi-segment component and a second multi-segment component by wrapping the first multi-segment component and the second multi-segment component in a web material to form an individual smoking article having a source of combustible heat at a first end and a nozzle at a second end.
    Advantageously, the provision of such an apparatus increases the manufacturing speed of smoking articles having a combustible heat source. Additionally, by manufacturing the first multi-segment component comprising the heat source separately from the second multi-segment component comprising the mouthpiece, the risk of the heat source coming into contact with the mouthpiece of the smoking article is reduced.
    [0049] Preferably, the feeding means comprises means for interleaving each of the three segments with another of the three segments, so that the segments in the distribution path are in a desired and predetermined order. Preferably, the segments are interspersed along the mobile distribution path so that the first multi-segment component comprises a combustible heat source at a first end, an airflow directing segment at a second end and a forming substrate between the combustible heat source and the airflow directing segment. The feed means preferably comprises a combustible heat source feed wheel configured to receive individual combustible heat sources and feed the individual combustible heat sources to the mobile distribution path.
    [0050] The feed means preferably comprises an aerosol forming substrate feed wheel configured to feed the individual aerosol forming substrate segments to the mobile delivery path. In a preferred embodiment, the aerosol forming substrate feed wheel comprises means for receiving a continuous stream of aerosol forming substrate material and means for cutting the individual aerosol forming substrate segments.
    [0051] The feed means preferably comprises an airflow steering segment feed wheel configured to feed the individual airflow steering segments to the mobile distribution path. The airflow directing segment feed wheel preferably comprises means for receiving a continuous stream of airflow directing segment material and means for cutting the individual airflow directing segments.
    [0052] In one embodiment, the airflow directing segment comprises an elongated hollow tube having substantially the same outer diameter as the aerosol forming substrate. Preferably, the airflow directing segment further comprises a hollow, substantially air-tight, open-ended tube of reduced diameter compared to the aerosol-forming substrate and an annular substantially air-impermeable seal of substantially equal outer diameter. aerosol forming substrate, which surrounds the hollow tube downstream of the at least one air inlet.
    [0053] In the preferred airflow directing segment, the volume radially limited by the outside of the hollow tube and an outer wrapper of the smoking article defines the first part of the airflow path extending longitudinally upstream of the at least an air inlet toward the aerosol-forming substrate and the radially limited volume inside the hollow tube defines the second portion of the air flow path extending longitudinally downstream toward the mouth end of the smoking article. The preferred air flow directing element may further comprise an inner wrap, which surrounds the hollow tube and the annular substantially airtight seal.
    [0054] In this preferred embodiment of the airflow directing segment, the volume radially limited by the outside of the hollow tube and the inner wrap of the airflow directing element defines the first part of the longitudinally extending airflow path upstream of the at least one air inlet towards the aerosol forming substrate and the volume limited by the interior of the hollow tube defines the second part of the air flow path extending longitudinally downstream towards the mouth end of the article to smoke. The open upstream end of the hollow tube may rest on a downstream end of the aerosol forming substrate. The preferred air flow directing element may further comprise an annular air-permeable diffuser of outer diameter substantially equal to the aerosol-forming substrate, which surrounds at least a portion of the length of the hollow tube upstream of the substantially impermeable seal. annular air. For example, the hollow tube can be at least partially embedded in a cellulose acetate tow plug.
    [0055] In an alternative embodiment of the airflow directing segment, an airflow directing element is located downstream of the aerosol forming substrate and comprises an open-ended substantially air-impermeable truncated hollow cone made of, for example, cardboard. The downstream end of the hollow open ended truncated cone is substantially equal in diameter to the aerosol forming substrate and the upstream end of the hollow open ended truncated cone is reduced in diameter compared to the aerosol forming substrate.
    [0056] In the alternative embodiment, the upstream end of the hollow cone rests on the aerosol forming substrate and is surrounded by an air permeable cylindrical plug of substantially equal diameter to the aerosol forming substrate. The air permeable cylindrical plug may be formed from any suitable material including but not limited to porous materials such as, for example, very low filtration efficiency cellulose acetate tow. The upstream end of the open-ended truncated hollow cone rests on the aerosol forming substrate and is surrounded by an annular air-permeable diffuser made, for example, of cellulose acetate tow, which has a diameter substantially equal to the forming substrate. of aerosol 6 and is wrapped by the filter plug wrap.
    [0057] The portion of the open-ended truncated hollow cone that is not enveloped by the annular air permeable diffuser is enveloped by a low air permeability inner envelope made of, for example, cardboard.
    [0058] A circumferential arrangement of air inlets is provided on the outer wrap and the inner wrap surrounding the open-ended hollow truncated cone downstream of the annular air permeable diffuser.
    [0059] As used herein, the term "air inlet" is used to describe one or more holes, cuts, partitions or other openings in the outer wrapper and any other materials surrounding the smoking article through which air can be drawn into within one or more airflow paths. Preferably, the segments in the distribution path have their longitudinal geometric axes substantially aligned with each other and with the direction of movement of the distribution path. Such a linear forming process is advantageous as it causes minimal or no damage to components within each first multi-segment component.
    [0060] The apparatus may further comprise an additional feed wheel, configured to receive an expansion chamber. In this embodiment, the expansion chamber is provided adjacent to the airflow directing segment so that it is at the second end of the first multi-segment component.
    [0061] Preferably, the distribution path is a continuous belt. In a preferred embodiment, the belt comprises vacuum means for supplying a vacuum to the belt so that individual segments of the first multi-segment component are retained on the belt. Preferably, the continuous vacuum belt comprises a plurality of holes through which vacuum is applied to the segments of the first multi-segment component.
    [0062] Preferably, the means for forming the first multi-segment component further comprises a hopper for feeding the individual combustible heat sources along the distribution path. Where the feed means comprises a combustible heat source feed wheel, the hopper is configured to supply individual combustible heat sources to the combustible heat source feed wheel. Preferably, the cross-sectional shape of the combustible heat sources is circular or elliptical.
    [0063] Preferably, the means for forming the first multi-segment component further comprises segment cutting means for cutting at least one of the segments. Where the feed means comprises an aerosol forming substrate feed wheel, the additional segment cutting device is preferably configured to receive a direct current, or supply, of aerosol forming substrate material to cut the material. aerosol forming substrate into individual aerosol forming substrate segments and to supply the aerosol forming substrate segments to the aerosol forming substrate feed wheel. Where the feed means comprises an airflow directing segment feed wheel, the additional segment cutting device is preferably configured to receive a direct current, or supply, of airflow directing segment material. , to cut the airflow steering segment material into individual airflow steering segments, and to provide individual airflow steering segments for the airflow steering segment feed wheel.
    [0064] Preferably, the means for cutting the first multi-segment components comprises a flying knife-like arrangement. Thus, advantageously, the first multi-segment component forming device can operate continuously.
    [0065] Preferably, the means for forming the first multi-segment component comprises three wheels configured to compact the segments.
    [0066] Preferably, the apparatus further comprises a rotating drum, after the cutting device, for rotating each alternate first multi-segment component, so that each set of first multi-segment components is received with combustible heat sources of each first multi-segment component facing in opposite directions.
    [0067] The apparatus may further comprise a receiving drum configured to receive the first multi-segment components from the first multi-segment component forming device, and to feed the first multi-segment components to the rotating drum.
    [0068] Preferably, the combining device further comprises: a first receiving device for receiving sets of discrete multi-segment first components, each set of multi-segment first components comprising two multi-segment first components; a separating device for separating, along the longitudinal axis of the first multi-segment components, the first multi-segment components in each set of first multi-segment components; a second receiving device for receiving, among the first multi-segment components separated in each set of first multi-segment components, a set of second discrete multi-segment components, each set of second discrete multi-segment components comprising two second components of multiple segments joined so that the nozzles of each second component of multiple segments are adjacent to each other; an alignment device for aligning the longitudinal axes of the first multi-segment components and second multi-segment components in the second receiving device; a compression device for compressing first multi-segment components and second multi-segment components into a group; an enveloping device for wrapping the group of first multi-segment components and second multi-segment components in the web material to form a double smoking article; and a cutting device for cutting the double smoking article between the nozzles of the set of second multi-segment components to form individual smoking articles.
    [0069] Advantageously, the provision of a set of discrete multi-segment second components comprising two joined second multi-segment components, thus manufacturing double smoking articles, allows the manufacturing apparatus to operate at a higher speed compared to manufacture of unique smoking articles.
    [0070] In one embodiment, the additional segment of the second multi-segment component comprises an aerosol cooling segment. Preferably, the aerosol cooling segment is manufactured from PLA.
    [0071] Preferably, the screen material used to wrap the first multi-segment component and the second multi-segment components is filter paper. Preferably, the filter paper is provided with a pre-applied adhesive for adhering the filter paper to the first multi-segment component and the second multi-segment component.
    [0072] In order to further increase the manufacturing speed of the apparatus, two multi-segment first component forming devices are provided upstream of the combination device. In this way, the manufacturing speed can be further increased since forming the first multi-segment component is often the slowest process when manufacturing smoking articles. In this embodiment, the two multi-segment first component forming devices may be configured so that multi-segment first components are provided to the combining device, oriented so that the combustible heat sources are facing in opposite directions. Orienting the first multi-segment components in this way allows the rotating drum to be removed from the apparatus, and thus the apparatus can operate more efficiently.
    [0073] Preferably, the combination devices further comprise the second enveloping device to enclose, with an external thermal conduction element comprising one or more layers of a thermally reflecting material, the first component of multiple segments so that the conduction element of external heat overlaps the combustible heat source and the aerosol forming substrate.
    [0074] Preferably, the combination device further comprises means for piercing each first multi-segment component around the circumference of the smoking article. Preferably, the piercing devices comprise at least one laser. Preferably, the laser is configured to pierce each first multi-segment component as the first multi-segment component and the second multi-segment component are being enveloped by the screen material. Where a laser is used to provide perforations on the first two components of multiple segments simultaneously, a series of optical elements is used to direct the laser.
    [0075] In alternative embodiments, a so-called "spider" machine may be used instead of the rotating drum described above. The "spider" machine uses mechanically or electronically controlled feed arms comprising means for holding the components of the smoking article, and means for orienting the components of the smoking article. In this way, the "spider" machine allows smoking article components to be fed from a first stream of components having a first orientation to a second stream of components having a second orientation. The "spider" machine can feed the first multi-segment components from the device for forming the first multi-segment components into the combination drum to combine the first multi-segment components with the second multi-segment components.
    [0076] As used here, features of means plus function can alternatively be expressed in terms of their corresponding structure.
    [0077] Any feature related to one aspect may be applied to other aspects, in any suitable combination. In particular, method aspects can be applied to apparatus aspects, and vice versa. Additionally, any, some or all of the features in one aspect may apply to any, some or all of the features in any other aspect, in any suitable combination.
    [0078] It should also be appreciated that particular combinations of the various features described and defined in any aspects of the invention may be independently implemented or supplied or used.
    [0079] The invention will be further described by way of examples only with reference to the accompanying drawings in which: Figure 1 illustrates a schematic representation of a smoking article comprising a combustible heat source manufactured by the method and apparatus according to the present invention Figure 2 illustrates a schematic representation of an apparatus for forming a first multi-segment component; Figure 3 illustrates a schematic representation of an apparatus for rotating alternative multi-segment first components; and Figure 4 illustrates a schematic representation of an apparatus for combining a first multi-segment component and a second multi-segment component to form a smoking article.
    [0080] Figure 1 illustrates a schematic cross-sectional representation of a smoking article 100. The process is described in detail below with reference to the following features of the smoking article. The smoking article 100 comprises a combustible heat source 102, the combustible heat source having a shield 104. The shield is a layer of aluminum foil affixed to one end of the combustible heat source using an adhesive. Longitudinally adjacent to the combustible heat source, an aerosol forming substrate 106 is provided. The aerosol forming substrate 106 comprises a tobacco material. The smoking article further comprises an air flow directing segment 108, an expansion chamber 110, an aerosol cooling segment and a nozzle filter 114.
    [0081] The combustible heat source 102, the aerosol forming substrate 106 and the airflow directing segment 108 are wrapped in the wrap 116 to form a first multi-segment component of the smoking article 100. The first multi-segment component segments is enveloped in an internal heat conduction layer 118, such as an aluminum foil, which overlies both the combustible heat source 102 and the aerosol forming substrate 106. Additionally, the first multi-segment component is enveloped. in an external heat-conducting material comprising a layer of a thermally reflecting material such as aluminum foil. The external thermally conductive material overlies the wrap 116, and is positioned adjacent to the combustible heat source and the aerosol forming substrate. Wrap 116 is provided with perforations 121 arranged circumferentially around the smoking article adjacent to air flow directing segment 108.
    [0082] The expansion chamber 110, aerosol cooling segment and the nozzle 114 are wrapped in the wrap 122 to form a second multi-segment component of the smoking article 100. The first multi-segment component and the second multi-segment component are further wrapped in wrap 124 to join the two components together to form the smoking article. Wrap 124 is a filter paper.
    [0083] Figure 2 illustrates a schematic perspective view of an illustrative embodiment of the apparatus for forming the first multi-segment components of the present invention. Figure 2 illustrates an embodiment of apparatus for combining a plurality of segments to produce the first multi-segment component. The apparatus 200 illustrated in Figure 2 is arranged to combine the combustible heat sources 202, the aerosol generating substrates 204 and the airflow directing segments 206 to form the first multi-segment components, which can be combined with the second multi-segment components, optionally using filter paper to form the finished smoking articles.
    [0084] Referring to Figure 2a, the apparatus 200 comprises the first feed devices 208 for feeding the precut discrete combustible heat sources 202, the second feed device 210 for the aerosol generating substrates 204, and the third device feed device 212 to air flow directing segments 206. First feed device 208 may comprise a vibratory bowl, belt and index wheel (not shown). Second feed device 210 may comprise a hopper, primary and secondary supply drums, a vacuum belt, and an indexing wheel (not shown). The third feed device 212 may comprise a hopper, primary and secondary supply drums, a vacuum belt and an indexing wheel (not shown). Apparatus 200 further comprises vacuum belt 214 for receiving the components, holding them using a vacuum and moving them along a dispensing path.
    [0085] Referring now to Figure 2b, the apparatus 200 further comprises a compacting device 216 for compacting the component stream into component groups, in the form of wheels 218, 220 and 222, an embellishment region 224 using the feed of paper web 226 and belt 228, and a blade-shaped cutting device 230. Wheels 218, 220 and 220 each comprise a plurality of indexed extensions to hold the segments. The indexed extensions sequentially compress the segments as they are moved from the first wheel 218 to the third wheel 222.
    [0086] The general operation of Figures 2 of the apparatus 200 is as follows. Combustible heat sources 202 are introduced from the vibratory bowl to the belt, then through the index wheel to the vacuum belt 214. The aerosol generating substrates 204 are introduced from the hopper, through the primary supply drums and secondary to the vacuum belt of the second feeding device, then through the index wheel to the vacuum belt 214. Similarly, the airflow directing segments are introduced from the hopper through drums of primary and secondary supply to the vacuum belt of the third feeding device, enters through the index wheel to the vacuum belt 214. The various segments 202, 204, and 206 are introduced with proper spacing and speed so that their axes longitudinal geometric shapes are substantially and axially aligned with each other and with the direction of movement of the vacuum belt 214 in the necessary order.
    [0087] The various segments pass along the vacuum belt214 in order, and then pass into the compaction devices 216. The function of the compaction devices 216 is to compact the chain of segments into groups of segments, each group corresponding to one discrete multi-segment first component, such that the segments within a group abut each other and there is a predefined space between a front group of segments and a rear group of segments. In one embodiment, the space between the groups of segments may be 1 mm +/0.5 mm, that is, between 0.5 mm and 1.5 mm, or more preferably between 0.8 mm and 1.2 mm Additionally, compaction device 216 records the position of each space so that blade 230 can cut the web of material in each space between groups of components.
    [0088] After the compaction device 216, the components are wrapped with paper web in the embellishment region 224. The paper web feed 226 may include pre-applied heat conducting elements such as aluminum foil parts, properly spaced along the screen material. Once the components have been wrapped with paper web from feeder 226, the web is cut into suitable seams at blade 230 to form the first discrete multi-segment components 232.
    [0089] Referring again to Figure 2a, as can be seen, the second feeding devices 210 for feeding the aerosol forming substrates comprise means for cutting discrete aerosol forming substrates from a continuous supply of the aerosol forming substrate material. aerosol formation. Similarly, the third feed device 212 for feeding the airflow directing segments comprises means for cutting discrete airflow directing segments from a continuous supply of airflow directing segment material.
    [0090] Discrete first multi-segment components 232 are then provided to a transfer drum 234 from belt 228. Transfer drum 234 transfers first multi-segment components from the first multi-segment forming apparatus to the combination apparatus discussed in more detail below. As illustrated in Figure 3, a rotating drum 300 is provided to receive the first multi-segment components from the transfer drum 234. Alternatively, the rotating drum 300 may receive the first multi-segment components directly from the belt 228. The rotating drum 300 comprises a plurality of receiving chutes 302, 304 for holding multi-segment first components. Each alternate chute 304 is rotatable so that the first multi-segment component can be rotated so that it is longitudinally aligned with a corresponding unrotated chute 302 (shown in exploded view of the rotating drum 300). In this way, the first components of multiple segments can be aligned so that the combustible heat sources are facing in opposite directions.
    [0091] Referring now to Figure 4, the apparatus for combining the first multi-segment components with the second multi-segment components to form smoking articles is schematic. As described above, the transfer drum 234 transfers the first multi-segment components of the belt 228 to the rotating drum 300. The first multi-segment components are disposed and oriented, by a first feed assembly, so that pairs of the first component of multiple segments have their longitudinal geometric axes aligned and the fuel heat sources are facing in opposite directions. The pairs of first multi-segment components are then transferred to a separation drum 400. The separation drum is configured to move the pair of first multiple segments along its longitudinal axis to provide a space between the flow-directing segments. of the respective first multi-segment components. Space is provided to facilitate placement of the second multi-segment components between the first multi-segment components.
    [0092] In a preferred embodiment, the multi-segment second components 402 are supplied in multiple sets of multi-segment second components. As can be seen in Figure 4, second multi-segment components 402 may be supplied, for example, comprising two sets of second multi-segment components, where each set comprises two second multi-segment components (e.g., a first second component of multiple segments and a second component of multiple segments). Before the multi-segment second components are supplied to the combination apparatus, they are cut to form two sets of multi-segment second components. The set of second multi-segment components is arranged such that the nozzle end of the first second multi-segment component is adjacent to the nozzle end of the second multi-segment component. The set of second multi-segment components is positioned, by a second feed set, between the two separate first multi-segment components on combination drum 404. The multi-segment components are then transferred to enveloping drum 406. The wrapper is configured to compress the first multi-segment components and the second multi-segment components together so that there is no space between the components. The wrapping drum can be provided with extensions, or the like, positioned adjacent to the combustible heat sources of the first multi-segment components to perform compaction. Extensions can be mechanically or electrically controlled such as with a cam mechanism.
    [0093] The compacted first and second multi-segment components are then wrapped in a screen material, such as filter paper 408. This process is accomplished by rotating the components around their longitudinal geometric axis. The filter paper is supplied with a pre-applied adhesive to ensure components are held together securely. The filter paper is wide enough to combine each of the first multi-segment components in a pair to the set of second multi-segment components in a single wrapping operation. In a preferred embodiment, the filter paper covers the second multi-segment component, and overlaps the first multi-segment component by about 5 mm. The wrapping process results in a joined pair of smoking articles, each smoking article comprising a first multi-segment component and a second multi-segment component as described above.
    [0094] During the wrapping process, an external thermal conduction layer 410 may be provided on the first components of multiple segments. The outer thermal conduction layer is made of a thermally reflecting material such as aluminum. Similar to filter paper, the outer thermally conductive layer can be provided with a pre-applied adhesive to securely affix the thermally conductive layer to the first multi-segment component. The outer thermal conduction layer 410 is provided in the region adjacent to the combustible heat source and the aerosol forming substrate.
    [0095] Furthermore, during the wrapping process, perforations are cut into the first components of multiple segments in the region adjacent to the airflow directing segment. Perforations are made using a stationary pulsed laser 412 that cuts the perforations around the circumference of the first multi-segment components as they rotate. Two such lasers can be provided to allow perforations to be cut into each first component of multiple segments in a pair. Alternatively, an optical system of lenses and mirrors can be provided to use a single laser to cut two sets of perforations simultaneously.
    The joined pair of smoking articles is then transferred to a cutting drum 414. As can be seen in Figure 4, the cutting drum cuts the joined pair of smoking articles into individual finished smoking articles 100. In this process, the filter paper is cut between the nozzles of the second multi-segment components.
    [0097] Throughout the above process, it can be observed that the combustible heat sources do not come into contact with any other component. This is important as combustible heat sources are made of particulate material that may have a tendency to splinter or break and leave a residue on any other component it comes into contact with.
    [0098] The modalities and examples described above illustrate, but do not limit the invention. Other embodiments of the invention can be made without departing from the spirit and scope of the invention, and it is to be understood that the specific embodiments described herein are not limiting.
    权利要求:
    Claims (8)
    [0001]
    1. Method of manufacturing smoking articles (100), characterized in that it comprises: forming first components of multiple segments (232) each comprising a combustible heat source (202), an aerosol forming substrate (204), and an airflow directing segment (206) by: feeding a stream of combustible heat sources (202), aerosol forming substrates (204) and airflow directing segments (206) along a mobile distribution path, wherein at least one segment of the first multi-segment component (232) is cut on-line; compaction into groups of the combustible heat sources (202), the aerosol forming substrates (204) and the airflow directing segments (206), each group corresponding to a first discrete multi-segment component (232); surrounding the combustible heat sources (202), aerosol forming substrates (204) and directing segments. flow of a r (206) on a web of material; cutting the web of material into groups to separate the individual multi-segment first components (232) from each other; rotating the alternating first multi-segment components so that pairs of first multi-segment components are received with the combustible heat sources of each first component multi-segment facing in opposite directions; feeding a stream of multi-segment first components (232) to a receiving device; feeding a stream of multi-segment second components (402), each comprising a nozzle and at least one additional segment , for the receiving devices; and combining a first multi-segment component (232) and a second multi-segment component (402) by wrapping the first multi-segment component (232) and the second multi-segment component (402) in a web material (408) to form an individual smoking article (100) having a combustible heat source (102) at a first end and a nozzle (114) at a second end.
    [0002]
    2. Method according to claim 1, characterized in that the segments (202, 204, 206) in the distribution path have their longitudinal geometric axes substantially aligned with each other and with the direction of movement of the distribution path.
    [0003]
    3. Method according to claim 1 or 2, characterized in that in compaction in groups of combustible heat sources (202), aerosol forming substrates (204) and airflow directing segments (206), there is a predefined space between a front group of segments and a rear group of segments.
    [0004]
    4. Method according to any one of claims 1, 2 or 3, characterized in that the individual combustible heat sources (202) are fed from a hopper.
    [0005]
    5. Method according to any one of claims 1 to 4, characterized in that the combining step further comprises: receiving sets of first components of multiple discrete segments (232), each set of first components of multiple discrete segments (232) comprising two first multi-segment components (232) with their longitudinal axes substantially aligned; separating, along their longitudinal axes, the first multi-segment components (232) in each set of first multi-segment components (232) discrete segments (232), the receipt, between the first components of separate multiple segments (232), of a set of second components of discrete multiple segments (402), each set of second components of discrete multiple segments (402) comprising two seconds components of multiple segments joined so that their longitudinal axes are substantially aligned and the nozzles of each second multi-segment component are adjacent to each other; the alignment of the longitudinal axes of the first and second multi-segment components in a combination drum; the compaction of the first and second multi-segment components into a group ; wrapping the group in the web material to form a double smoking article; and cutting the double smoking article between the mouths of the two second multi-segment components to form the individual smoking articles.
    [0006]
    6. Method according to any one of claims 1 to 5, characterized in that, during the step of combining the first multi-segment component (232) and second multi-segment component (402), the first multi-segment component segments be further enveloped with a heat conducting element (410) comprising one or more layers of a thermally reflective material.
    [0007]
    7. Method according to any one of claims 1 to 6, characterized in that the first multi-segment component (232) further comprises an expansion chamber (110).
    [0008]
    8. The method of claim 7, characterized in that the additional segment of the second multi-segment component (402) further comprises a filter segment (114).
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    同族专利:
    公开号 | 公开日
    EP2844090A1|2015-03-11|
    US10039313B2|2018-08-07|
    EP2844090B1|2017-09-27|
    WO2013164124A1|2013-11-07|
    CN104379004A|2015-02-25|
    JP2015515283A|2015-05-28|
    RU2014148169A|2016-06-20|
    CN104379004B|2019-12-06|
    KR20150009544A|2015-01-26|
    TW201400038A|2014-01-01|
    BR112014027012A2|2017-06-27|
    HUE034732T2|2018-02-28|
    JP6419690B2|2018-11-07|
    US20150122273A1|2015-05-07|
    RU2622812C2|2017-06-20|
    PL2844090T3|2018-01-31|
    KR102110801B1|2020-05-15|
    AR090887A1|2014-12-10|
    TWI659700B|2019-05-21|
    ES2642942T3|2017-11-20|
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    法律状态:
    2018-03-27| B06F| Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]|
    2019-09-17| B06U| Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]|
    2021-03-16| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|
    2021-05-25| B16A| Patent or certificate of addition of invention granted|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 15/03/2013, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    EP12166186.2|2012-04-30|
    EP12166186|2012-04-30|
    PCT/EP2013/055465|WO2013164124A1|2012-04-30|2013-03-15|Two-part multi-component combiner|
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