Aerosol-generating article assembly on conveyor with spacers

Abstract

The invention relates to a device (1) for assembling an aerosol-generating article (9), comprising a conveyor (2) having a support surface (10) for supporting at least two aligned strip-shaped segments (8) of the aerosol-generating article (9), and a spacer (16), wherein the apparatus (1) is configured to move the spacer (16) from a retracted position to an active position in which the spacer (16) provides abutment means for the strip-shaped segment (8) on the support surface (10), and wherein the conveyor (2) comprises the spacer (16). The invention further relates to a method for manufacturing an aerosol-generating article (9) and to the use of the spacer (16) in a device (1) for manufacturing an aerosol-generating article (9).

Description

Technical Field

[0001] The present invention relates to an apparatus for assembling an aerosol-generating article, a method for manufacturing an aerosol-generating article and the use of a spacer in an apparatus for manufacturing an aerosol-generating article. Background Art

[0002] WO2021123425A1 discloses a packaging device and method for wrapping a sheet material around a set of segments. In WO2021165509A1, an aerosol-generating article is shown in which a strip and a filter are arranged in a spaced-apart relationship, and a method of manufacturing the aerosol-generating article is shown.

[0003] There is a need to improve the assembly of aerosol-generating articles having a gap between the strip and the filter. Summary of the invention

[0004] According to a first aspect of the present invention, there is provided an apparatus for assembling an aerosol generating article. The apparatus comprises a conveyor having a support surface for supporting at least two axially aligned strip segments of the aerosol generating article. The apparatus further comprises a spacer. The apparatus is configured to move the spacer from a retracted position to an active position. In the active position, the spacer provides abutment means for the strip segments on the support surface.

[0005] In particular, the spacer provides, in the active position, abutment means for two strip-shaped segments arranged on opposite sides of the spacer.

[0006] The device may comprise a plurality of aligned spacers. The plurality of aligned spacers may be arranged alternately with a plurality of axially aligned strip segments. In particular, the device may comprise two aligned spacers. The two aligned spacers may be arranged alternately with three aligned strip segments.

[0007] In the active position, the spacer may be arranged between the strip segments, in particular so that the strip segments may not contact each other. Moving the spacer into the retracted position may provide a gap between the two strip segments. The gap between the strip segments may result in less material of the strip segments being used. Thus, the apparatus may reduce material costs and increase sustainability. With the apparatus, an aerosol generating article having a gap between two strip segments may be formed with fewer process steps than with conventional methods.

[0008] Aerosol generation products can be combustible cigarettes or products for heat-not-burn devices. One of the strip segments can be an aerosol generation strip. The aerosol generation strip can contain an aerosol generation substrate, particularly tobacco, herbaceous plants, oil or an artificial substrate. One of the strip segments can be a filter or a hollow tube made of acetate fiber tow, such as a cigarette filter. Consumers can consume aerosol generation products by burning. During combustion, the aerosol generation strip can burn, and the burning area of ​​the aerosol generation strip may be very close to the filter. This may cause the burning or overheating of the filter, which may adversely affect the taste of the smoke. The gap between the filter and the strip can prevent this effect. In a heat-not-burn device where the aerosol generation product can be heated instead of burning, the aerosol generation strip can be heated to about 300 degrees Celsius or higher, and the space between the aerosol generation strip and the filter can advantageously provide such a space: the aerosol can be cooled, condensed, and nucleated in the space before passing through the filter into the user's mouth.

[0009] The conveyor may include a spacer. The conveyor may include a storage cavity to accommodate the spacer at least when the spacer is in the retracted position. The storage cavity may have substantially the same size as the spacer. The storage cavity may be larger than the spacer so that the storage cavity can accommodate other components in addition to the spacer.

[0010] In the retracted position, the spacer can be flush with the support surface or located below the support surface. This configuration can make it possible for sheets, in particular packaging, to be wrapped around the strip segment without interfering with the spacer. In the active position, the spacer can protrude from the support surface.

[0011] A plunger or a guide surface may be provided to push one or two strip segments against a spacer in an active position. The guide surface may be stationary. The stationary guide surface may extend at least partially along the periphery of the drum, wherein the stationary guide surface may be inclined relative to the axial direction. The strip segment may be moved against the guide surface so that the guide surface forces the strip segment against the spacer. The plunger or the guide surface may engage the distal end of the strip segment while the proximal end of the strip segment contacts the spacer. As an alternative to the guide surface or the plunger, the strip segment may be pushed against the spacer by means of air pressure. The device may include an air nozzle. The air nozzle may be suitable for applying air pressure to one or more strip segments so that the one or more strip segments are pushed against the spacer.

[0012] The spacer may have a width of 1 mm to 15 mm, in particular 1 mm to 4 mm. This value may provide a sufficiently large gap between the strip segments. The width of the spacer may correspond to the gap formed between the strip segments, in particular the distance between the strip segments. The width of the spacer may be measured in the longitudinal direction of the strip segment.

[0013] The conveyor may include a cam. The cam may be adapted to move the spacer from a retracted position to an active position. The cam may be an efficient and precise way to move the spacer. Such a system may require minimal maintenance. Such a system may require minimal control. The cam may be replaceable to provide different spacer movements. The orientation or position or orientation and position of the cam may be adjusted to accommodate spacer movement.

[0014] Alternatively, the spacer may be moved by a motor driven by an electronic controller.

[0015] The conveyor may include rollers. The rollers may be adapted to rotate about an axis of rotation. The rollers may be an effective means for conveying the strip segments and the aerosol generating article.

[0016] The drum may include a spacer. The drum may be adapted to rotate relative to the cam so that the spacer may rotate around the cam. When the spacer passes the cam, the spacer may contact the cam and may move into an active position. The cam may push the spacer into the active position. The spacer may contact the cam around the entire rotation of the drum.

[0017] The cam may be stationary. The cam may be a desmodromic cam. The cam may be a magnetic cam.

[0018] The drum can be stationary, and the cam can be adapted to rotate relative to the drum.When the cam rotates, the cam can contact the spacer and can move the spacer into the active position.

[0019] The drum may be adapted to rotate about an axis of rotation. The cam may be adapted to rotate about an axis of rotation. The drum and the cam may be adapted to rotate about the same axis of rotation. The drum and the cam may rotate at different speeds. The drum and the cam may rotate in opposite directions. The drum and the cam may rotate in the same direction.

[0020] The conveyor may include a groove. The groove may form a support surface. The groove may be formed on the support surface. The groove may be adapted to receive a strip segment of the aerosol generating article. The groove may facilitate retaining the strip segment. The groove may facilitate axially aligning the strip segment.

[0021] The spacer can be arranged so that the spacer protrudes into the groove in the active position. This can allow the strip segments to be axially aligned in the groove and arranged at a distance from each other.

[0022] The storage cavity may be open toward the groove. Thus, at least a portion of the spacer may be moved into the groove.

[0023] The conveyor may comprise a plurality of grooves. A plurality of grooves may be spaced around the circumferential surface of the conveyor, in particular the support surface, in particular the roller. The grooves may be equally spaced around the conveyor. The conveyor may comprise a plurality of spacers. The spacers may be equally spaced around the conveyor. Each spacer may be associated with a groove. The conveyor may comprise a plurality of storage cavities. Each storage cavity may be associated with a groove, in particular arranged adjacent to a corresponding groove.

[0024] The device may include a spring. The spring may be adapted to bias the spacer toward the retracted position. The cam may be adapted to move the spacer into the active position against the biasing force of the spring. The spring may move the spacer into the retracted position when the spacer rotates away from the cam or the cam rotates away from the spacer. The spring may move the spacer back into the storage cavity. The spring may move the spacer to be flush with or below the support surface.

[0025] The spacer may comprise a flange. The flange may be adapted to engage with the spring.

[0026] The spring may be a compression spring. The spring may be arranged between a portion of the spacer, in particular the flange, and the support surface. The spring may push the spacer into the storage cavity.

[0027] The spring may be a tension spring. The spring may be arranged between a portion of the spacer, in particular a flange, and the center of the conveyor, in particular a roller. The spring may pull the spacer into the storage cavity.

[0028] The device may include a magnet. The magnet may be suitable for biasing the spacer toward the retracted position. The cam may be magnetic so that the spacer can be moved to the active position by magnetic force. The cam may change the direction of the magnetic force so that the spacer is moved to the retracted position. The magnet may hold the spacer in the retracted position. The magnet may be closed so that the spacer can be moved to the active position due to centrifugal force. The centrifugal force may be caused by the rotation of the conveyor or roller. The magnet may be continuously active. The shielding element may be arranged between the magnet and the spacer at a predetermined position so that the spacer may not be affected by the magnet. In this position, the magnet may not bias the spacer to the retracted position, and the spacer may be moved to the active position due to centrifugal force. The shielding element may be a second magnet having a different orientation than another magnet so that the spacer can be moved to the active position by the second magnet. The magnet may be located outside the roller or conveyor and pull the spacer to the active position or push the spacer to the retracted position.

[0029] The suction holes may be arranged in the support surface. The conveyor may include a suction channel. The suction channel may be open towards the support surface, in particular towards the suction holes. The suction holes may facilitate holding the strip segments. The suction holes may be arranged in grooves on the support surface. The suction holes may be equally spaced in the grooves. The suction holes may be equally spaced around the support surface. All the suction holes may have substantially the same size. Suction holes of different sizes may be provided.

[0030] The apparatus may include a wrapping conveyor. The wrapping conveyor may be a roller adapted to rotate about a rotation axis. The wrapping conveyor may wrap the sheet material around the strip segment.

[0031] The packaging conveyor can be arranged adjacent to the conveyor. The strip segments can be moved from the conveyor to the packaging conveyor. When the strip segments are moved to the packaging conveyor, the gaps between the strip segments can be maintained.

[0032] The device may include a contact element. The contact element may have an opposing surface. The opposing surface may be arranged at a distance from the supporting surface of the conveyor or the peripheral surface of the packaging conveyor.

[0033] The opposing surfaces may be adapted to facilitate rotation of the strip-shaped segments of the aerosol-generating article about their respective axes.

[0034] The opposing surfaces may be adapted to facilitate wrapping of a bridging element, in particular a sheet, around a strip-shaped segment of the aerosol-generating article. The bridging element may be attached to the strip-shaped segment by an adhesive. The bridging element may facilitate maintaining gaps between the strip-shaped segments.

[0035] The spacer may be arranged outside the conveyor.In the retracted position, the spacer may be at a distance from the support surface.In the active position, the spacer may be arranged closer to the support surface than in the retracted position.

[0036] The conveyor can be configured to transport the strip segments along a transport direction. The strip segments can be arranged obliquely, in particular orthogonally, relative to the transport direction.

[0037] The conveyor may include a roller adapted to rotate about an axis of rotation extending in the longitudinal direction. The roller may include a plurality of grooves formed on the support surface. The grooves may be adapted to receive the strip segments. The grooves may extend primarily in the longitudinal direction.

[0038] The strip segments can be transported by the conveyor, in particular on the support surface of the conveyor. The strip segments can be transported in the transport direction. The strip segments can be transported along the transport path, in particular circumferentially around the roller. The transport direction can change along the transport path. The transport direction can be parallel to the conveyor, in particular the tangential direction of the roller. The conveyor can be configured to transport the strip segments along the transport path. The conveyor can be configured to transport the strip segments in the transport direction. The strip segments can be arranged substantially orthogonally with respect to the transport direction. In particular, the strip segments can extend mainly in the main direction. The main direction can be substantially orthogonal to the transport direction. The conveyor can be configured to support, in particular hold, the strip segments arranged substantially orthogonally to the transport direction.

[0039] The strip segments in the above paragraphs may refer to the first strip segment and the second strip segment. The strip segments in this paragraph may refer to the first strip segment, the second strip segment and the third strip segment.

[0040] According to a second aspect of the present invention, a method for manufacturing an aerosol generating article, in particular assembling an aerosol generating article, is provided. A first strip segment is provided. A second strip segment is provided. The first strip segment and the second strip segment are axially aligned. A spacer is arranged between the first strip segment and the second strip segment. The spacer is removed so that a predetermined distance is established between the first strip segment and the second strip segment. The first strip segment and the second strip segment are connected using a bridging element so that a gap of a predetermined distance is provided between the first strip segment and the second strip segment.

[0041] The strip-shaped segments can be transported along the transport direction. The strip-shaped segments can be arranged obliquely, in particular orthogonally, relative to the transport direction.

[0042] The conveyor may include a roller adapted to rotate about an axis of rotation extending in a longitudinal direction. The roller may include a plurality of grooves formed on a support surface. The grooves may be adapted to receive the strip segments. The grooves may extend primarily in a longitudinal direction. The strip segments may be placed in the grooves. The strip segments may be arranged axially in the grooves.

[0043] The first strip segment and the second strip segment can be axially aligned on the conveyor, in particular axially aligned on the support surface of the conveyor. The spacer can be a part of the conveyor, in particular a part of the conveyor on which the strip segment is aligned. The strip segment can be transported by the conveyor, in particular on the support surface of the conveyor. The strip segment can be transported in a transport direction. The strip segment can be transported along a transport path, in particular circumferentially around the roller. The transport direction can change along the transport path. The transport direction can be parallel to the tangential direction of the conveyor, in particular the roller. The strip segment can be arranged substantially orthogonally with respect to the transport direction. In particular, the strip segment can extend mainly in a main direction. The main direction can be substantially orthogonal to the transport direction.

[0044] The strip segments in this paragraph may refer to the first strip segment and the second strip segment. The strip segments in the above paragraphs may refer to the first strip segment, the second strip segment and the third strip segment.

[0045] The first strip segment or the second strip segment can be pushed against the spacer in particular by means of a plunger, a guide surface or air pressure.The first strip segment and the second strip segment can be pushed against the spacer in particular by means of one or more plungers, one or more guide surfaces or air pressure.

[0046] The first strip segment can be provided by means of air pressure, vacuum or cam. The second strip segment can be provided by means of air pressure, vacuum or cam.

[0047] The first strip segment may be an aerosol generating strip. The aerosol generating strip may include an aerosol generating substrate. The aerosol generating substrate may be tobacco, herb, oil or an artificial substrate. The second strip segment may be a filter or a hollow tube, such as a cigarette filter, particularly made of acetate fiber tow. The filter may be made of any filter material, particularly including polymer-free materials. The filter may contain flavorings, particularly menthol.

[0048] The first strip segment and the second strip segment may be axially aligned.

[0049] In the step of aligning the first strip segment and the second strip segment, the first strip segment can be placed on the support surface of the conveyor, particularly placed in a groove on the support surface of the conveyor. Then, the spacer can be moved to a protruding position adjacent to the first strip segment. Then, the second strip segment can be placed on the support surface of the conveyor, particularly placed in a groove formed on the support surface of the conveyor adjacent to the spacer. The first strip segment and the second strip segment can be placed on the opposite side of the spacer. The second strip segment can be placed on the support surface of the conveyor before the first strip segment. The spacer can be moved to the protruding position before any one of the first strip segment and the second strip segment is placed on the support surface.

[0050] In the step of removing the spacer, the spacer may be moved to a retracted position.

[0051] The gap may have a length of 1 mm to 15 mm, in particular 1 mm to 4 mm. The length of the gap may be the distance between the first strip segment and the second strip segment. The length of the gap may be measured in the longitudinal direction of the first strip segment. The longitudinal direction of the first strip segment may be the same as the longitudinal direction of the second strip segment.

[0052] The second strip-shaped section can have a length of 7 mm to 35 mm, in particular 20 mm to 30 mm, in particular approximately 27 mm.

[0053] In the step of connecting the first strip segment and the second strip segment with a bridging element, the bridging element may be attached to both the first strip segment and the second strip segment. The bridging element may wrap around the first strip segment and the second strip segment. The first strip segment and the second strip segment may be rotated so that the bridging element may wrap around the first strip segment and the second strip segment. The first strip segment and the second strip segment may remain stationary, and the bridging element may wrap around the first strip segment and the second strip segment.

[0054] The bridging element may be a packaging material, in particular a sheet. The bridging element may be attached to the first strip segment and the second strip segment by means of an adhesive. The adhesive may be applied to the inner surface of the bridging element. The inner surface of the bridging element may be in contact with the strip segments.

[0055] The bridging element may have a thickness of 20 to 140 micrometers, in particular about 30 micrometers.

[0056] The bridging element may be a sheet material, in particular a paper sheet material.The bridging element may consist of a plurality of parts, in particular a first sheet material and a second sheet material.

[0057] The bridging element may extend along a length between 1 mm and 15 mm of the first strip segment. This length may be sufficient to attach the first strip segment to the second strip segment. The bridging element may extend along the entire length of the first strip segment. The bridging element may extend along the entire length of the second strip segment.

[0058] The bridging element may include at least one of a cellulose-based material, paper, paperboard, reconstituted tobacco, or a cellulose-based film.

[0059] The bridging element may have a weight of 50 g / m2 or more. The bridging element may improve the strength of the aerosol-generating article. The bridging article may prevent the gap between the first strip segment and the second strip segment from collapsing, particularly during use and during manufacture of the aerosol-generating article.

[0060] The first strip segment and the second strip segment can be axially aligned in a groove formed on a support surface of a conveyor, particularly a roller. Aligning the segment in the groove can facilitate the alignment segment, can facilitate the retention segment or can facilitate the conveying segment.

[0061] The first strip segment and the second strip segment can be held in the groove by means of suction. The suction can be applied through suction holes in the support surface of the conveyor. The suction holes can also be located outside the groove. In a conveyor without a groove, the suction holes can be located in the support surface.

[0062] The method may further include the step of providing a third strip segment. The second strip segment may be arranged between the first strip segment and the third strip segment. A spacer may be arranged between the first strip segment and the second strip segment. A second spacer may be arranged between the second strip segment and the third strip segment. Two spacers may be removed so that a gap of a predetermined distance may be established between the first strip segment and the second strip segment, and a second gap of a second predetermined distance may be established between the second strip segment and the third strip segment. The first strip segment, the second strip segment and the third strip segment may be connected by wrapping with a bridging element.

[0063] The second predetermined distance may be the same as the predetermined distance.The second spacer may be the same as the spacer.

[0064] This method can provide two aerosol generating articles simultaneously. This can result in higher efficiency and higher production volume.

[0065] The bridging element may be wrapped around the first strip segment, the second strip segment, and the third strip segment.

[0066] The third stripe-shaped segment may be a strip comprising an aerosol-generating substrate. The third stripe-shaped segment may be identical to the first stripe-shaped segment.

[0067] The method may further comprise the step of severing the bridging element and the second strip-shaped segment. This may form two, in particular substantially identical, aerosol-generating articles.

[0068] One of the two aerosol-generating articles may be rotated 180 degrees so that the two aerosol-generating articles may be oriented in the same direction. The rotation may be performed relative to an axis of rotation orthogonal to the longitudinal axis of the rotating aerosol-generating article. This means that the first strip segment in the first aerosol-generating article is on the same side as the third strip segment in the second aerosol-generating article.

[0069] According to a third aspect of the invention there is provided use of a spacer in an apparatus for manufacturing an aerosol-generating article for establishing a predetermined gap between an aerosol-generating substrate segment and a filter segment.The spacer may in particular be used in an apparatus for assembling an aerosol-generating article.

[0070] The spacer may be part of a conveyor. The conveyor may comprise rollers. The conveyor may carry the aerosol-generating substrate segment and the filter segment. The aerosol-generating substrate segment and the filter segment may be arranged on (particularly aligned with) a supporting surface of a conveyor (particularly a conveyor comprising the spacer).

[0071] The conveyor may transport the aerosol generating substrate segment and the filter segment in a transport direction. The aerosol generating substrate segment and the filter segment may be arranged substantially orthogonal to the transport direction. The aerosol generating substrate segment and the filter segment may extend mainly in a main direction. The main direction may be substantially orthogonal to the transport direction.

[0072] The conveyor may include a roller adapted to rotate about an axis of rotation extending in the longitudinal direction. The roller may include a plurality of grooves formed on the support surface. The grooves may be adapted to receive the strip segments. The grooves may extend primarily in the longitudinal direction.

[0073] The apparatus according to the first aspect of the invention may be used with the method steps of the method according to the second aspect of the invention. The method according to the second aspect of the invention may be performed with the apparatus according to the first aspect of the invention. The use of a spacer according to the third aspect of the invention in an apparatus for manufacturing an aerosol generating article may be performed with the apparatus according to the first aspect of the invention or by using the method steps of the method according to the second aspect of the invention.

[0074] The invention is defined in the claims. However, a non-exhaustive list of non-limiting examples is provided below. Any one or more features of these examples may be combined with any one or more features of another example, embodiment or aspect described herein.

[0075] Example Ex1: A device, for example, a device for assembling an aerosol-generating product, comprising a conveyor having a support surface for supporting at least two axially aligned strip segments of the aerosol-generating product, and a spacer, wherein the device is configured to move the spacer from a retracted position to an active position, in which the spacer provides an abutment device for the strip segments on the support surface.

[0076] Example Ex2: The device according to example Ex1, for example, a device for assembling an aerosol-generating article, comprises a plurality of aligned spacers, wherein the plurality of aligned spacers can be arranged alternately with a plurality of axially aligned strip-shaped segments.

[0077] Example Ex3: The device according to Example Ex1 or Ex2, for example, a device for assembling an aerosol-generating article, wherein the conveyor includes the spacer, in particular the conveyor includes a storage chamber to accommodate the spacer at least when the spacer is in the retracted position.

[0078] Example Ex4: A device according to any of the preceding examples, for example, a device for assembling an aerosol-generating article, wherein, in the retracted position, the spacer is flush with the support surface or retracted below the support surface, and in the active position, the spacer protrudes from the support surface.

[0079] Example Ex5: A device according to any of the preceding examples, for example a device for assembling an aerosol-generating article, wherein a plunger or a guide surface is provided to push one or both strip segments against the spacer in the active position.

[0080] Example Ex6: The apparatus according to any of the preceding examples, for example an apparatus for assembling an aerosol-generating article, wherein the spacer has a width of 1 mm to 15 mm, in particular 1 mm to 4 mm.

[0081] Example Ex7: An apparatus according to any of the preceding examples, for example an apparatus for assembling an aerosol-generating article, wherein the conveyor comprises a cam, wherein the cam is adapted to move the spacer from the retracted position to the active position.

[0082] Example Ex8: An apparatus according to any of the preceding examples, eg, an apparatus for assembling an aerosol-generating article, wherein the conveyor comprises a roller adapted to rotate about an axis of rotation.

[0083] Example Ex9: An apparatus according to Example Ex8, for example, an apparatus for assembling an aerosol-generating article, wherein the roller includes the spacer and the roller is suitable for rotating relative to the cam so that the spacer rotates around the cam.

[0084] Example Ex10: The apparatus according to any one of Examples Ex7 to Ex9, eg, an apparatus for assembling an aerosol-generating article, wherein the cam is stationary.

[0085] Example Ex11: The apparatus according to any one of Examples Ex7 to Ex10, for example, an apparatus for assembling an aerosol-generating article, wherein the cam is a linked track cam.

[0086] Example Ex12: The apparatus according to any one of Examples Ex7 to Ex11, for example, an apparatus for assembling an aerosol-generating article, wherein the cam is a magnetic cam.

[0087] Example Ex13: The apparatus according to any one of Examples Ex8 to Ex12, for example, an apparatus for assembling an aerosol-generating article, wherein the drum is stationary and the cam is adapted to rotate relative to the drum.

[0088] Example Ex14: A device according to any one of Examples Ex8 to Ex13, for example, a device for assembling an aerosol-generating article, wherein the roller is suitable for rotating around a rotation axis, and the cam is suitable for rotating around a rotation axis, in particular around the same rotation axis as the roller.

[0089] Example Ex15: An apparatus according to any of the preceding examples, for example an apparatus for assembling an aerosol-generating article, wherein the conveyor comprises a groove forming the support surface, wherein the groove is suitable for receiving a strip-shaped segment of the aerosol-generating article.

[0090] Example Ex16: An apparatus according to Example Ex15, for example, an apparatus for assembling an aerosol-generating article, wherein the spacer is arranged so that the spacer protrudes into the groove in the active position.

[0091] Example Ex17: The device according to any one of Examples Ex15 or Ex16, for example, a device for assembling an aerosol-generating article, wherein the storage cavity opens toward the groove.

[0092] Example Ex18: An apparatus according to any one of Examples Ex15 to Ex17, for example an apparatus for assembling an aerosol-generating article, wherein the conveyor comprises a plurality of grooves, in particular a plurality of grooves spaced apart around a circumferential surface of the conveyor.

[0093] Example Ex19: An apparatus according to any of the preceding examples, for example, an apparatus for assembling an aerosol-generating article, wherein the conveyor comprises a plurality of spacers.

[0094] Example Ex20: The apparatus according to any of the preceding examples, eg, an apparatus for assembling an aerosol-generating article, further comprising a spring, wherein the spring is adapted to bias the spacer toward the retracted position.

[0095] Example Ex21: A device according to Example Ex20, for example, a device for assembling an aerosol-generating article, wherein the spacer includes a flange suitable for engaging with the spring.

[0096] Example Ex22: An apparatus according to example Ex20 or Ex21, eg, an apparatus for assembling an aerosol-generating article, wherein the spring is a compression spring arranged between a portion of the spacer and the support surface.

[0097] Example Ex23: An apparatus according to example Ex20 or Ex21, for example, an apparatus for assembling an aerosol-generating article, wherein the spring is a tension spring arranged between a portion of the spacer and the center of the conveyor.

[0098] Example Ex24: A device according to any of the preceding examples, for example, a device for assembling an aerosol-generating article, wherein the device comprises a magnet, wherein the magnet is suitable for biasing the spacer toward the retracted position.

[0099] Example Ex25: The apparatus according to any of the preceding examples, for example, an apparatus for assembling an aerosol-generating article, wherein the suction hole is provided in the support surface.

[0100] Example Ex26: An apparatus according to Example Ex25, for example, an apparatus for assembling an aerosol-generating article, wherein the suction hole is provided in the groove on the support surface.

[0101] Example E27: The apparatus of any of the preceding examples, eg, an apparatus for assembling an aerosol-generating article, further comprising a package conveyor, in particular a drum adapted to rotate about an axis of rotation.

[0102] Example Ex28: An apparatus according to Example Ex27, for example, an apparatus for assembling an aerosol-generating article, wherein the package conveyor is arranged adjacent to the conveyor.

[0103] Example Ex29: The device according to any of the preceding examples, for example, a device for assembling an aerosol-generating product, further comprises a contact element having a relative surface, wherein the relative surface is arranged at a certain distance from the supporting surface of the conveyor or the circumferential surface of the packaging conveyor.

[0104] Example Ex30: An apparatus according to Example Ex29, for example, an apparatus for assembling an aerosol-generating article, wherein the relative surfaces are suitable for facilitating the rotation of the strip-shaped segments of the aerosol-generating article about their respective axes.

[0105] Example Ex31: A device according to example Ex29 or Ex30, for example a device for assembling an aerosol-generating article, wherein the relative surfaces are suitable for facilitating wrapping of a bridging element, in particular a sheet, around a strip-shaped segment of the aerosol-generating article.

[0106] Example Ex32: An apparatus according to any of the preceding examples, for example, an apparatus for assembling an aerosol-generating article, wherein, where appropriate, the spacer is arranged outside the conveyor, wherein in the retracted position, the spacer is at a distance from the support surface, and in the active position, the spacer is arranged closer to the support surface than in the retracted position.

[0107] Example Ex33: A method, for example, a method for manufacturing an aerosol generating article, comprising the following steps: providing a first strip segment, providing a second strip segment, axially aligning the first strip segment and the second strip segment, arranging a spacer between the first strip segment and the second strip segment, removing the spacer, wherein a predetermined distance is established between the first strip segment and the second strip segment, and connecting the first strip segment and the second strip segment using a bridging element so that a gap of the predetermined distance is provided between the first strip segment and the second strip segment.

[0108] Example Ex34: A method according to Example Ex33, for example, a method for manufacturing an aerosol-generating article, wherein the first strip-shaped segment is a strip comprising an aerosol-generating substrate.

[0109] Example Ex35: A method according to Example Ex33 or Ex34, for example, a method for manufacturing an aerosol-generating article, wherein the second strip-shaped segment is a filter.

[0110] Example Ex36: A method according to any one of Examples Ex33 to Ex35, for example, a method for manufacturing an aerosol-generating article, wherein the first strip segment and the second strip segment are axially aligned.

[0111] Example Ex37: A method according to any one of Examples Ex33 to Ex36, for example, a method for manufacturing an aerosol generating article, wherein the step of connecting the first strip segment and the second strip segment using a bridging element includes attaching the bridging element to both the first strip segment and the second strip segment, and rotating the first strip segment and the second strip segment, thereby wrapping the bridging element around the first strip segment and the second strip segment.

[0112] Example Ex38: A method according to any one of Examples Ex33 to Ex37, for example, a method for manufacturing an aerosol-generating article, wherein the step of axially aligning the first strip segment and the second strip segment includes placing the first strip segment on a supporting surface of a conveyor, in particular in a groove formed on the supporting surface of the conveyor, moving the spacer to a protruding position adjacent to the first strip segment, and placing the second strip segment on the supporting surface of the conveyor, in particular in the groove formed on the supporting surface of the conveyor, adjacent to the spacer, wherein the first strip segment and the second strip segment are placed on opposite sides of the spacer.

[0113] Example Ex39: A method according to any one of Examples Ex33 to Ex38, for example, a method for manufacturing an aerosol-generating article, wherein the step of removing the spacer includes moving the spacer to a retracted position.

[0114] Example Ex40: A method according to any one of Examples Ex33 to Ex39, for example, a method for manufacturing an aerosol-generating article, wherein the gap has a length of 1 mm to 15 mm, in particular 1 mm to 4 mm.

[0115] Example Ex41: A method according to any one of Examples Ex33 to Ex40, for example, a method for manufacturing an aerosol-generating article, wherein the second strip segment has a length of 7 mm to 35 mm, particularly 20 mm to 30 mm, particularly about 27 mm.

[0116] Example Ex42: A method according to any one of Examples Ex33 to Ex41, for example, a method for manufacturing an aerosol-generating article, wherein the bridging element is a packaging.

[0117] Example Ex43: The method according to any one of Examples Ex33 to Ex42, for example, a method for manufacturing an aerosol-generating article, wherein the bridging element is wrapped around the first strip segment and the second strip segment.

[0118] Example Ex44: The method according to any one of Examples Ex33 to Ex43, for example, a method for manufacturing an aerosol-generating article, wherein the bridging element is attached to the first strip segment and the second strip segment by means of an adhesive.

[0119] Example Ex45: A method according to any one of Examples Ex33 to Ex44, for example, a method for manufacturing an aerosol-generating article, wherein the bridging element has a thickness of 20 to 140 microns, in particular about 30 microns.

[0120] Example Ex46: A method according to any one of Examples Ex33 to Ex45, for example, a method for manufacturing an aerosol-generating article, wherein the bridging element is a sheet, in particular a paper sheet.

[0121] Example Ex47: A method according to any one of Examples Ex33 to Ex46, for example, a method for manufacturing an aerosol-generating article, wherein the bridging element consists of multiple parts, in particular a first sheet and a second sheet.

[0122] Example Ex48: A method according to any one of Examples Ex33 to Ex47, for example, a method for manufacturing an aerosol-generating article, wherein the bridging element extends along a length of between 1 mm and 15 mm of the first strip segment.

[0123] Example Ex49: A method according to any one of Examples Ex33 to Ex48, for example, a method for manufacturing an aerosol-generating article, wherein the bridging element extends along the entire length of the second strip segment.

[0124] Example Ex50: A method according to any one of Examples Ex33 to Ex49, for example, a method for manufacturing an aerosol-generating article, wherein the bridging element comprises at least one of a cellulose-based material, paper, paperboard, reconstituted tobacco, or a cellulose-based film.

[0125] Example Ex51: A method according to any one of Examples Ex33 to Ex50, for example, a method for manufacturing an aerosol-generating article, wherein the first strip segment and the second strip segment are axially aligned in a groove formed on a supporting surface of a conveyor, in particular a roller.

[0126] Example Ex52: A method according to Example Ex51, for example, a method for manufacturing an aerosol-generating article, wherein the first strip segment and the second strip segment are held in the groove by means of suction, in particular the suction is applied through suction holes in the supporting surface of the conveyor.

[0127] Example Ex53: A method according to any one of Examples Ex33 to Ex52, for example, a method for manufacturing an aerosol generating article, wherein a third strip segment is provided and the second strip segment is arranged between the first strip segment and the third strip segment, wherein the spacer is arranged between the first strip segment and the second strip segment, and a second spacer is arranged between the second strip segment and the third strip segment, wherein the two spacers are removed so that a gap of the predetermined distance is established between the first strip segment and the second strip segment, and a second gap of the second predetermined distance is established between the second strip segment and the third strip segment, wherein the first strip segment, the second strip segment and the third strip segment are connected by wrapping them with the bridging element.

[0128] Example Ex54: A method according to any one of Examples Ex33 to Ex53, for example, a method for manufacturing an aerosol-generating article, wherein the bridging element is wrapped around the first strip segment, the second strip segment, and the third strip segment.

[0129] Example Ex55: A method according to any one of Examples Ex33 to Ex54, for example, a method for manufacturing an aerosol-generating article, wherein the third strip segment is a strip comprising an aerosol-generating substrate, in particular the third strip segment is equivalent to the first strip segment.

[0130] Example Ex56: A method according to any one of Examples Ex33 to Ex55, for example, a method for manufacturing an aerosol-generating article, wherein the method further includes a step of cutting the bridging element and the second strip segment, in particular so as to form two, in particular substantially uniform, aerosol-generating articles.

[0131] Example Ex57: A method according to any one of Examples Ex33 to Ex56, for example, a method for manufacturing an aerosol-generating article, wherein one of the two aerosol-generating articles is rotated 180 degrees so that the two aerosol-generating articles are oriented in the same direction.

[0132] Example Ex58: Use of a spacer in an apparatus for manufacturing an aerosol-generating article for establishing a predetermined gap between an aerosol-generating substrate segment and a filter segment.

[0133] Example Ex59: Use of a spacer according to example Ex58, wherein the spacer is part of a conveyor, in particular a roller. BRIEF DESCRIPTION OF THE DRAWINGS

[0134] Examples will now be further described with reference to the accompanying drawings.

[0135] Figure 1A schematic diagram showing an apparatus according to an embodiment of the invention is shown.

[0136] Figure 2 Shown in Figure 1 The right side shows a plan view of the circumferential surface of the conveyor.

[0137] Figure 3 A cross-sectional view showing a schematic representation of a conveyor according to an embodiment of the invention is shown.

[0138] Figure 4 Show Figure 3 but the conveyor is in a different position.

[0139] Figure 5 Show Figure 3 and 4 A cross-sectional view of another embodiment of a conveyor is shown in FIG.

[0140] Figure 6-10 A perspective view showing a schematic representation of a conveyor according to an embodiment of the present invention and how to manufacture an aerosol-generating article according to an embodiment of the present invention is shown.

[0141] Fig.11 is a cross-sectional view of an aerosol-generating article made according to an embodiment of the present invention.

[0142] Fig.12 is a schematic diagram of how to manufacture an aerosol-generating article according to an embodiment of the present invention. DETAILED DESCRIPTION

[0143] exist Figure 1 1 shows an apparatus 1 according to an embodiment of the invention. The apparatus 1 comprises a conveyor 2 and an auxiliary conveyor 3. The conveyor 2 comprises a roller 4 adapted to rotate about an axis of rotation 5 extending in a longitudinal direction 100. The auxiliary conveyor 3 comprises a second roller 6 adapted to rotate about a second axis of rotation 7 extending in the longitudinal direction 100. The two rollers 4, 6 rotate in different directions. The conveyor 2 is adapted to wrap a bridging element 21 ( Figure 1 The conveyor 2, in particular the roller 4, comprises a support surface 10. The support surface 10 is suitable for supporting and holding the strip-shaped segment 8 and the aerosol-generating product 9.

[0144] The device 2 further comprises a contact element 11 having an opposing surface 12. The opposing surface 12 facilitates wrapping of the bridging element 21 around the strip-shaped segment 8 to form the aerosol-generating article 9.

[0145] Figure 2A plan view of a support surface 10 of a conveyor 2 is shown. The conveyor 2, in particular the roller 4, comprises a plurality of grooves 13 formed on the support surface 10. The grooves 13 extend mainly in the longitudinal direction 100 and are adapted to receive the strip segments 8. The grooves 13 are equidistantly spaced around the support surface 10 of the roller 4. Suction holes 14 are provided in the support surface 10 in the region of the grooves 13. The suction holes 14 may also be provided outside the grooves 13, e.g. Figure 2 The suction hole 14 is suitable for facilitating the retention of the strip segment 8 and the aerosol generating article 9.

[0146] The conveyor 2 further comprises storage cavities 15. The storage cavities 15 are open towards the grooves 13 and accommodate spacers 16. In each groove 13, one storage cavity 15 is arranged. Each storage cavity 15 accommodates one spacer 16. The storage cavities 15 are arranged in the grooves 13 between the suction holes 14. The spacers 16 can be moved from a retracted position to an active position, in which the respective spacer 16 is flush with the support surface 10, as shown in FIG. Figure 2 As shown in the groove 13 on the right side of the active position, the spacer 16 protrudes from the support surface 10, as shown in the groove 13 on the right side of the active position. Figure 2 The center of the groove 13 is shown.

[0147] exist Figure 2 In the embodiment shown in , the strip segment 8 comprises a first strip segment 17 and a second strip segment 18. In the active position, the spacer 16 is arranged between the first strip segment 17 and the second strip segment 18. Figure 2 On the left side, the spacer 16 is in a retracted position to establish a gap 19 between the first strip segment 17 and the second strip segment 18.

[0148] Figure 3 and 4 4 shows how to move the spacer 16 from the retracted position to the active position. A plurality of storage cavities 15 are spaced around the support surface 10 of the drum 4. Each support cavity 15 accommodates a spacer 16. For simplicity, Figure 3 and 4 Only one spacer 16 is shown in FIG. 2 . The conveyor 2 further comprises a cam 20 . The cam 20 is stationary, while the drum 4 rotates around the axis of rotation 5 . Thus, the storage chamber 15 and the spacer 16 rotate around the cam 20 .

[0149] exist Figure 3 When the storage cavity 15 with the spacer 16 is aligned with the cam 20, the spacer 16 contacts the distal end 30 of the cam 20 and is partially pushed out of the storage cavity 15 into the active position. In the active position, the spacer 16 protrudes from the support surface 10, such as Figure 4 as shown in .

[0150] Figure 5 The example illustrates how the spacer 16 can be moved back to the retracted position according to an embodiment of the invention. The spacer 16 comprises two flanges 26 protruding laterally from the spacer 16. A spring 27 is arranged between the flanges 26 and the support surface 10. Figure 3 and 4 Compared with the storage chamber 15, Figure 5 The storage cavity 15 is larger to provide space for the flange 26 and the spring 27. The spring 27 biases the spacer 16 into the storage cavity 15 toward the retracted position, such as Figure 5 As illustrated in the upper left portion of FIG. 1 , when the spacer 16 moves toward the distal end 30 of the cam 20, the distal end 30 of the cam 20 partially pushes the spacer 16 out of the storage cavity 15 into the active position against the biasing force of the spring 27. The spacer 16 then protrudes from the support surface 10, as shown in FIG. Figure 5 When the spacer 16 moves away from the distal end 30 of the cam 20, the distal end 30 is no longer in contact with the spacer 16, so that the spring 27 pushes the spacer 16 back into the receiving cavity 15 into the retracted position, as shown in FIG. Figure 5 exemplified in the upper right portion of .

[0151] Figures 6 to 10 A schematic overview is shown of how an aerosol-generating article 9 may be manufactured according to an embodiment of the invention. Figure 6 The empty groove 13 is shown on the supporting surface 10 of the roller 4 of the conveyor 2. The roller 4 and the groove 13 on the roller 4 extend in the longitudinal direction 100. For the purpose of illustration, Figure 6 Only one groove 13 is shown in FIG. However, the conveyor 2 comprises a plurality of grooves 13. Suction holes 14 are arranged in the grooves 13, and storage chambers 15 are arranged between the suction holes 14. The storage chambers 15 accommodate spacers 16, which are arranged in a plurality of grooves 13. Figure 6 In the retracted position. Figure 7 As illustrated in FIG. 1 , the first strip segment 17 is inserted into the groove 13. The suction hole 14 helps to hold the first strip segment 17 in the groove 13. Then, the spacer 16 is moved to an active position adjacent to the first strip segment 17, as shown in FIG. Figure 8 As shown in . The spacer 16 now protrudes from the support surface 10. Fig. 9 As shown in , the second strip segment 18 is then inserted into the groove 13 adjacent to the spacer 16. The second strip segment 18 is inserted on the side of the spacer 16 opposite to the first strip segment 17. The strip segments 17, 18 can in particular be pushed against the spacer 16 by the plunger 28. Fig. 9In the embodiment, only one plunger 28 is shown pushing the second strip segment 18 against the spacer 16. However, a second plunger may be arranged on the other side of the drum 4 to push the first strip segment 17 against the spacer 16. Instead of the plunger 28 or in addition, the guide surface 29 ( Fig. 9 ) or air pressure can be used to push the strip segments 17, 18 against the spacer 16. The spacer 16 is then moved back into the retracted position so that a gap 19 is established between the first strip segment 17 and the second strip segment 18, as shown in FIG. Fig.10 The gap 19 has a predetermined width, namely the width of the spacer 16. The first strip segment 17 and the second strip segment 18 are then wrapped with a bridging element 21 to form an aerosol generating article 9. Figures 6 to 10 However, the roller 4 can also rotate relative to the cam 20 about the rotation axis to move the spacer 16 from the retracted position to the active position, such as Figure 3 and 4 As shown in the example.

[0152] exist Fig.11 , a cross-sectional view of an aerosol generating article 9 manufactured using a method according to an embodiment of the present invention is shown. The aerosol generating article 9 mainly extends in a longitudinal direction 100 and comprises a first strip segment 17 and a second strip segment 18. The first strip segment 17 is arranged at a certain distance from the second strip segment 18 so that a gap 19 of a predetermined width is established between the two strip segments 17, 18. The aerosol generating article 9 also includes a bridging element 21. The bridging element 21 is wrapped around the first strip segment 17 and the second strip segment 18 so that the gap 19 is maintained in the aerosol generating article 9.

[0153] exist Fig.12A method for manufacturing an aerosol generating article 9 according to an embodiment of the present invention is shown in FIG. In step i), a strip material 22 is provided. In step ii), the strip material 22 is cut into a first strip segment 17 and a third strip segment 23. The first strip segment 17 and the third strip segment 23 are axially aligned with respect to the longitudinal direction 100 and are spaced apart from each other. In step iii), the spacer 16 is then arranged adjacent to the first strip segment 17, and the second spacer 24 is arranged adjacent to the third strip segment 23. In step iv), the second strip segment 18 is inserted between the two spacers 16, 24. Thus, two aligned spacers 16, 24 are arranged alternately with three aligned strip segments 17, 18, 23. Pressure can be applied from both sides of the assembly comprising three strip segments 17, 18, 23 and two spacers 16, 24 to arrange the components adjacent to each other. The pressure may be provided by a stationary guide surface 29 which engages the outer end of the first strip segment 17 or the third strip segment 23, as indicated by the arrow in step iv). The stationary guide surface 29 may extend at least partially along the periphery of the conveyor 2, wherein the stationary guide surface 29 may be inclined relative to the longitudinal direction 100. The second stationary guide surface ( Fig.12 As an alternative to the guide surface 29, the force indicated by the arrow in step iv) can be provided by a plunger 28 or a plurality of plungers 28, such as Fig. 9 As shown in . A plunger 28 or a plurality of plungers 28 can be stationary or can rotate with the drum 4. In step v), the two spacers 16, 24 are removed so that a gap 19 is established between the first strip segment 17 and the second strip segment 18, and a second gap 25 is established between the second strip segment 18 and the third strip segment 23. In step vi), a bridging element 21 is attached to the first strip segment 17, the second strip segment 18 and the third strip segment 23, and is wrapped around the three strip segments 17, 18, 23. The bridging element 21 helps maintain the gap 19 between the first strip segment 17 and the second strip segment 18, and the second gap 25 between the second strip segment 18 and the third strip segment 23. In step vii), the bridging element 21 and the second strip segment 18 are cut off so that two aerosol generating articles 9 are formed. The cutting is basically carried out in the middle of the second strip segment 18. The aerosol generating article 9 mainly extends in the longitudinal direction 100. In step viii), one of the two aerosol-generating articles 9 is rotated 180 degrees so that both aerosol-generating articles 9 are oriented in the same direction. The rotation is performed about an axis of rotation orthogonal to the longitudinal direction 100 of the aerosol-generating article 9 .

Claims

1. An apparatus for assembling an aerosol-generating article, comprising a conveyor having a support surface for supporting at least two axially aligned strip-shaped segments of the aerosol-generating article, and Spacers, in, The apparatus is configured to move the spacer from a retracted position to an active position in which the spacer provides abutment means for the strip-shaped segment on the support surface, Wherein, the conveyor comprises the spacer.

2. The device according to claim 1, wherein: The conveyor includes a storage cavity to accommodate the spacer at least when the spacer is in the retracted position.

3. The device according to claim 1 or 2, wherein: In the retracted position, the spacer is flush with or retracted below the support surface, and in the active position, the spacer protrudes from the support surface.

4. The device according to any one of the preceding claims, wherein: The conveyor includes a cam, wherein the cam is adapted to move the spacer from the retracted position to the active position.

5. Apparatus according to any one of the preceding claims, wherein: The conveyor comprises a roller adapted to rotate about an axis of rotation.

6. The device according to claim 5, wherein: The drum includes the spacer, and the drum is adapted to rotate relative to a cam so that the spacer rotates around the cam.

7. Apparatus according to any one of the preceding claims, wherein: The conveyor comprises a recess forming the support surface, wherein the recess is adapted to receive a strip-shaped segment of the aerosol-generating article.

8. The device according to claim 7, wherein: The spacer is arranged such that it protrudes into the groove in the active position.

9. The apparatus of any preceding claim, further comprising a spring, wherein the spring is adapted to bias the spacer towards the retracted position.

10. Apparatus according to any one of the preceding claims, wherein: A suction hole is provided in the support surface.

11. Apparatus according to any one of the preceding claims, wherein: The conveyor is configured to transport the strip segments along a transport direction, wherein the strip segments are arranged orthogonally with respect to the transport direction.

12. A method for manufacturing an aerosol-generating article, the method comprising the steps of: Provide a first strip segment, A second strip segment is provided, axially aligning the first strip segment and the second strip segment on a supporting surface of a conveyor, placing a spacer as part of the conveyor between the first strip segment and the second strip segment, removing the spacer, wherein a predetermined distance is established between the first strip segment and the second strip segment, and The first strip segment and the second strip segment are connected by a bridging element so that a gap of the predetermined distance is provided between the first strip segment and the second strip segment.

13. The method according to claim 12, wherein: The step of connecting the first and second strip segments with a bridging element includes attaching the bridging element to both the first and second strip segments and rotating the first and second strip segments thereby wrapping the bridging element around the first and second strip segments.

14. The method according to claim 12 or 13, wherein: A third strip segment is provided, and the second strip segment is arranged between the first strip segment and the third strip segment, wherein the spacer is arranged between the first strip segment and the second strip segment, and the second spacer is arranged between the second strip segment and the third strip segment, wherein two spacers are removed so that a gap of the predetermined distance is established between the first strip segment and the second strip segment, and a second gap of the second predetermined distance is established between the second strip segment and the third strip segment, wherein the first strip segment, the second strip segment and the third strip segment are connected by wrapping with the bridging element.

15. Use of a spacer in an apparatus for manufacturing an aerosol-generating article for establishing a predetermined gap between an aerosol-generating substrate segment and a filter segment, wherein: The spacer is part of the conveyor.

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