Device for conveying rod-shaped articles for the tobacco processing industry

Abstract

The invention relates, inter alia, to a device (10) for transferring rod-shaped articles (20) from the tobacco processing industry, comprising a longitudinal conveying device (12) for conveying the rod-shaped articles (20) in a longitudinal axial direction one after the other in a row, and a transverse axial conveying device (14) for conveying the rod-shaped articles (20) in a transverse axial direction, wherein the rod-shaped articles (20) are transferred from the longitudinal conveying device (12) to the transverse axial conveying device (14) at the outlet side of the longitudinal conveying device (12) in a transfer area, wherein in the transfer area of ​​the rod-shaped articles (20) between the longitudinal conveying device (12) and the transverse axial conveying device (14) a feedthrough chamber (30) formed with a housing (32) for the rod-shaped articles (20) is provided, which is configuredthat longitudinally axially conveyed rod-shaped articles (20) are conveyed through the passage chamber (30) between an inlet opening (34) of the housing (32) and an outlet opening (36) of the housing (32), wherein an air curtain generating device (50) supplied with blown air is provided in the housing (32) of the passage chamber (30), wherein the flow direction of the air curtain generated by the air curtain generating device (50) is directed opposite to the longitudinal axial conveying direction of the rod-shaped articles (20) in the passage chamber (30).

Description

[0001] The invention relates to a device for transferring rod-shaped articles of the tobacco processing industry, in particular filter rods, with a longitudinal conveyor device for conveying the rod-shaped articles in the longitudinal axial direction one behind the other in a row, with a transverse axial conveyor device, in particular a push-in drum, for conveying the rod-shaped articles in the transverse axial direction, wherein the rod-shaped articles can be or are transferred from the longitudinal conveyor device to the transverse axial conveyor device on the output side of the longitudinal conveyor device in a transfer.

[0002] Furthermore, the invention relates to a method for transferring rod-shaped articles of the tobacco processing industry, in particular filter rods, from a longitudinal conveyor device for conveying the rod-shaped articles in the longitudinal axial direction, wherein the rod-shaped articles are conveyed longitudinally axially in a row one behind the other, to a transverse axial conveyor device, in particular a push-in drum, for conveying the rod-shaped articles in the transverse axial direction, wherein the rod-shaped articles are transferred from the longitudinal conveyor device to the transverse axial conveyor device on the output side of the longitudinal conveyor device in a transfer area.

[0003] Furthermore, the invention relates to a rod-making machine for the tobacco processing industry, in particular a filter-rod-making machine.

[0004] For the purposes of the present invention, rod-shaped articles of the tobacco processing industry are understood to mean rod-shaped articles such as cigarettes, tobacco rods wrapped with wrapping material, filter rods, multi-segment filter rods, and the like. These rod-shaped articles are typically produced using a strand process, wherein the rod-shaped articles are cut to length from the produced strand, which is conveyed longitudinally axially on a formatting belt of a formatting device, usually by a knife device, and the rod-shaped articles are moved longitudinally axially, e.g., on a prism rail in the longitudinal axial conveying direction downstream of the knife device. The conveying direction is parallel to the longitudinal axis of the strand or the rod-shaped articles.

[0005] In rod-making machines in the tobacco processing industry, such as cigarette rod machines or filter rod machines, the rod sections cut from the rod are transferred as rod-shaped articles (of finite length) from their longitudinal-axial production conveyor track to a cross-axial conveyor track for further processing. To facilitate the redirection and transfer of the articles from their longitudinal-axial conveying direction to a cross-conveyor, it is known to give the article a movement component transverse to its longitudinal-axial direction of movement and thus parallel to the movement of the cross-conveyor receptacles before it is pushed into the cross-conveyor receptacles. This is described, for example, in DE-AS 12 28 978 or in DE 34 44 468 C2. Furthermore, EP 0 689 775 B1 also describes a transfer device for rod-shaped articles in the tobacco processing industry.

[0006] Furthermore, EP 3 384 787 A1 discloses a device for transferring rod-shaped articles from a longitudinal conveyor device to a push-in drum, wherein an air curtain generating device is arranged in the transfer area.

[0007] Furthermore, EP 3 415 017 A1 discloses a device for collecting and discharging free articles of the tobacco processing industry containing rod-shaped, powdery or granular particles during transfer from a sending station to a receiving station via a pneumatic conveying line.

[0008] Furthermore, DE 12 77 729 B discloses a device for axially spacing cigarettes conveyed pneumatically along the longitudinal axis, wherein the cigarettes are delivered to a transversely conveying conveyor drum. To space the cigarettes conveyed along the longitudinal axis, an annular blast air nozzle is arranged around the outlet end of a guide tube. It is directed forward in the direction of movement of the cigarettes and connected to a compressed air source. The compressed air exiting the blast air nozzle partially cleans the cigarettes of tobacco dust, with the tobacco dust being blown toward the conveyor drum.

[0009] It is an object of the present invention to improve the transfer of rod-shaped articles of the tobacco processing industry, such as filter rods, which are conveyed longitudinally axially, from a longitudinal conveyor which conveys the articles in a row longitudinally axially to a transverse conveyor which conveys the articles transversely axially away, whereby it should be possible to transfer the rod-shaped articles without disturbances or contamination.

[0010] This object is achieved by a device for transferring rod-shaped articles of the tobacco processing industry, in particular filter rods, with a longitudinal conveyor device for conveying the rod-shaped articles in the longitudinal axial direction one behind the other in a row, with a cross-axial conveyor device, in particular a push-in drum, for conveying the rod-shaped articles in the cross-axial direction, wherein the rod-shaped articles can be or are transferred from the longitudinal conveyor device to the cross-axial conveyor device on the output side of the longitudinal conveyor device in a transfer area, wherein in the transfer area of ​​the rod-shaped articles between the longitudinal conveyor device and the cross-axial conveyor device there is provided a feed-through chamber for the rod-shaped articles, which is designed with a preferably closed housing and is configuredthat longitudinally axially conveyed rod-shaped articles can be or are conveyed between an inlet opening of the housing and an outlet opening of the housing through the feed-through chamber, wherein an air curtain generating device which can be or is acted upon by blown air is provided in the housing of the feed-through chamber, wherein the flow direction of the air curtain which can be or is generated by the air curtain generating device is directed counter to the longitudinal axial conveying direction of the rod-shaped articles in the feed-through chamber, which is further developed in that the air curtain generating device is arranged on the output side, preferably in the region of the outlet opening of the housing, in the housing of the feed-through chamber.

[0011] The invention is based on the idea that rod-shaped articles are conveyed through a housing of a feed-through chamber, wherein the preferably separated, rod-shaped articles are subjected to blast air by means of the air curtain generating device arranged in the housing, for example to remove particles from the end faces of the rod-shaped articles, such as filter rods. In order to provide blast air, the air curtain generating device is preferably connected to a blast air source. The flow direction of the blast air from the air curtain generating device is directed counter to the linear longitudinal axial conveying direction of the rod-shaped articles and at an acute angle onto the surface of the moving rod-shaped articles. Due to the flow direction of the blast air being counter to the conveying direction of the rod-shaped articles, entrained particles, such as charcoal particles, etc., from the surfaces of the rod-shaped articles conveyed through the feedthrough chamber. Overall, this achieves a clean transfer from the longitudinal conveyor to the transverse axial conveyor, for example, in the production of filter rods. The degree of contamination in the subsequent conveying and further processing steps is reduced because the particles detached from the surface of the rod-shaped articles remain in the housing of the feedthrough chamber and are removed therefrom, if necessary, by a suitable suction device or the like.

[0012] Within the scope of the invention, it is provided that the transverse axial conveyor device is designed as a push-in drum, which is preferably directly adjacent to the longitudinal conveyor device.

[0013] In particular, in one embodiment, the housing of the feedthrough chamber is designed as a closed housing.

[0014] According to the invention, the air curtain generating device is arranged on the output side, preferably in the region of the housing's outlet opening, in the housing of the feedthrough chamber. For example, if the feedthrough chamber is arranged upstream of a separating device, such as an accelerator device, with respect to the conveying direction of the rod-shaped articles, the rod-shaped articles passing through or being conveyed through the feedthrough chamber are subsequently accelerated by the separating device arranged outside the housing of the feedthrough chamber, whereby the end faces of the subsequent articles are each exposed to blast air by means of the air generating device arranged on the output side inside the housing.By means of the separating device, the rod-shaped articles are accelerated after exiting the feedthrough chamber, creating a gap between the accelerated rod-shaped article and the subsequent rod-shaped article. This causes the then-free front face of the rod-shaped article to be exposed to blast air in the feedthrough chamber. For this purpose, the air curtain generation device is preferably provided in the area of ​​the outlet opening of the housing.

[0015] Furthermore, in one embodiment of the device, it is provided that the housing of the feedthrough chamber has at least one or more air passages, preferably in the region of the outlet opening or on the outlet side of the housing or on an outlet-side end face of the housing. Because air can enter the housing of the feedthrough chamber from the outside via the air passages, excess pressure inside the feedthrough chamber is avoided. In one embodiment, it is provided that one or more air passages are formed on the outlet-side end face of the housing of the feedthrough chamber, which faces the separating device.

[0016] According to a further aspect, the device advantageously provides that the housing has a suction opening for sucking out and removing particles from the interior of the housing, preferably between the inlet opening and the outlet opening, wherein, in particular, a suction device is connected or connectable to the suction opening. The suction opening is preferably arranged laterally on the housing of the feedthrough chamber in order to laterally remove the particles from the housing of the feedthrough chamber. As a result, the particles detached from the surface of the rod-shaped articles, such as charcoal particles or the like, are reliably blown off and sucked directly out of the closed housing by means of a suction device.

[0017] Furthermore, in one embodiment of the device, it is advantageous that several, in particular interacting, guide rails for guiding the rod-shaped articles are arranged between the inlet opening and the outlet opening inside the feedthrough chamber. The guide rails ensure reliable guidance of the rod-shaped articles conveyed through the feedthrough chamber. The guide rails preferably extend between the inlet opening and the outlet opening of the feedthrough chamber and thereby surround the rod-shaped articles conveyed through the feedthrough chamber. The guide rails are preferably arranged uniformly in the circumferential direction of the rod-shaped articles.

[0018] For this purpose, in one embodiment of the device it is further provided that at least one guide rail or the guide rails each have blown air nozzles, wherein in particular the blown air nozzles are aligned such that the blown air emerging from the blown air nozzles is blown in the direction of the surface of the rod-shaped articles conveyed through the feed-through chamber. As a result, the rod-shaped articles are cleaned of particles adhering to the peripheral surface by means of the blown air nozzles of the guide rail or the guide rails, whereby the rod-shaped articles are surrounded by the blown air emerging from the guide rails. This prevents particles from adhering to the surfaces of the rod-shaped articles. In particular, all guide rails are designed with corresponding blown air nozzles in order to uniformly expose the rod-shaped articles conveyed through the feed-through chamber to blown air from all sides.In particular, the direction of the blown air exiting the guide rails' blown air nozzles is perpendicular to the surface of the rod-shaped articles. Preferably, the guide rails' blown air nozzles are connected to a blown air source.

[0019] Furthermore, in a further development of the device, it is provided that the guide rails for the rod-shaped articles are arranged uniformly and / or star-shaped, preferably in cross-section and preferably perpendicular to the conveying direction of the rod-shaped articles, in the interior of the housing of the feed-through chamber.

[0020] According to a further aspect, it is advantageous in the design of the device that a separating device is provided in the output-side transfer area on the longitudinal conveyor device, so that rod-shaped articles are separated or can be separated before being transferred from the longitudinal conveyor device to the transverse axial conveyor device. With respect to the conveying direction of the rod-shaped articles, the feed-through chamber is arranged upstream of the separating device. In particular, the feed-through chamber is arranged directly upstream of the separating device.

[0021] In particular, the separating device has one or more, in particular two, acceleration rollers for the rod-shaped articles.

[0022] In one embodiment, the singling device can also have one or more pairs of acceleration discs, wherein the acceleration rollers of a pair of acceleration discs interact with one another, so that when a rod-shaped article enters a pair of acceleration discs, the corresponding rod-shaped article is accelerated and thereby singulated, whereby the accelerated rod-shaped article is transferred or transferred to the transverse axial conveying device, in particular the push-in drum, immediately after the singulation.

[0023] Furthermore, an embodiment of the device is characterized in that the air curtain generating device is ring-shaped or closed in itself or partially circular.

[0024] In a further development, the air curtain generating device preferably has a plurality of air outlet nozzles which are or can be supplied with blown air and / or one or more air outlet slots which are or can be supplied with blown air.

[0025] Furthermore, according to a further development, it is preferred that the air curtain generated or producible by the air curtain generating device is or can be formed in the shape of a cone shell or partially in the shape of a cone shell or in the shape of a truncated cone shell or partially in the shape of a truncated cone shell.

[0026] Furthermore, the object is achieved by a method for transferring rod-shaped articles of the tobacco processing industry, in particular filter rods, from a longitudinal conveyor device for conveying the rod-shaped articles in the longitudinal axial direction, wherein the rod-shaped articles are conveyed longitudinally axially in a row one behind the other, to a transverse axial conveyor device, in particular a push-in drum, for conveying the rod-shaped articles in the transverse axial direction, wherein the rod-shaped articles are transferred from the longitudinal conveyor device to the transverse axial conveyor device on the output side of the longitudinal conveyor device in a transfer area, wherein in the transfer area of ​​the rod-shaped articles between the longitudinal conveyor device and the transverse axial conveyor device, the rod-shaped articles are guided by a preferably closed,A feedthrough chamber formed in a housing between an inlet opening of the housing and an outlet opening of the housing are conveyed longitudinally axially through the feedthrough chamber, wherein in the housing of the feedthrough chamber the rod-shaped articles conveyed longitudinally axially in a row one behind the other are subjected to blown air by an air curtain generating device arranged in the housing, wherein the flow direction of the air curtain generated by the air curtain generating device is directed counter to the longitudinal axial conveying direction of the rod-shaped articles in or on the longitudinal conveyor device, which is further developed in that the air curtain generating device is arranged on the output side, preferably in the region of the outlet opening of the housing, in the housing of the feedthrough chamber.

[0027] Within the scope of the invention, it is provided that the flow direction of the air generated by the air curtain generating device is directed towards the front end face in the conveying direction as well as towards the strand surface in the circumferential direction of the rod-shaped articles, wherein the blown air of the particularly funnel-shaped air curtain preferably strikes the front surface and the strand surface of the rod-shaped articles at an acute angle. It is preferred that the air outlet nozzles or air outlet slots of the air curtain generating device are arranged and aligned such that the individual emerging blown air streams meet (theoretically) in the strand center of the rod-shaped articles in front of the air curtain generating device during production. The (theoretical) intersection point of the emerging blown air streams from the air curtain generating device is located, for example,at a distance of between 15 mm to 40 mm, preferably between 20 mm to 30 mm, upstream of the air curtain generating device.

[0028] Preferably, the method is carried out using a device described above for transferring rod-shaped articles of the tobacco processing industry, in particular filter rods. To avoid repetition, express reference is made to the above explanations.

[0029] Furthermore, the object is achieved by a rod-making machine for the tobacco processing industry, in particular a filter rod-making machine, with a device for transferring rod-shaped articles of the tobacco processing industry, in particular filter rods, as described above. To avoid repetition, express reference is also made to the above statements.

[0030] Further features of the invention will become apparent from the description of embodiments of the invention together with the claims and the accompanying drawings. Embodiments of the invention may incorporate individual features or a combination of several features.

[0031] The invention is described below, without limiting the general inventive concept, using exemplary embodiments with reference to the drawings, whereby express reference is made to the drawings for all details of the invention not explained in more detail in the text. They show: Fig. 1 schematically shows a perspective view of a transfer device according to the invention in detail, Fig. 2 schematically shows a perspective sectional view of a feedthrough chamber for a transfer device and Fig. 3 schematically shows a cross-sectional view of the feedthrough chamber.

[0032] Within the scope of the invention, features marked with "in particular" or "preferably" are to be understood as optional features.

[0033] In the drawings, identical or similar elements and / or parts are provided with the same reference numbers, so that a repeated presentation is omitted.

[0034] In Fig. 1A perspective view of a transfer device 10 for transferring rod-shaped articles 20 conveyed longitudinally axially is shown. The rod-shaped articles 20 are conveyed longitudinally axially and arranged one behind the other in a row in a longitudinal conveyor 12. Furthermore, the transfer device 10 has, at the end of the longitudinal conveyor 12 on the output side of the longitudinal conveyor 12, a push-in drum 14 designed as a transverse conveyor, so that the rod-shaped articles 20 transferred from the longitudinal conveyor 12 to the push-in drum 14 are conveyed on the push-in drum 14 in the transverse axial direction. The push-in drum 14 has corresponding receiving troughs 15 in the circumferential direction for receiving the rod-shaped articles 20.

[0035] The longitudinal conveyor 12 can, for example, be part of a rod-making machine in the tobacco processing industry, such as a cigarette rod-making machine or a filter rod-making machine. The push-in drum 14 can, for example, serve to transfer filter rods to a further processing machine, such as a filter attachment machine.

[0036] The rod-shaped articles 20 conveyed in the longitudinal axial direction are conveyed one behind the other in the longitudinal axial direction on the longitudinal conveyor 12, which is designed as a prism rail. Before the rod-shaped articles 20 are transferred, they are conveyed through a feed-through chamber 30 after being conveyed on the longitudinal conveyor 12 and then conveyed to a pair of accelerator rollers with the acceleration rollers 16.1, 16.2, so that upon entry of the rod-shaped articles 20 between the two acceleration rollers 16.1, 16.2, the rod-shaped articles 20 are accelerated in the longitudinal axial direction toward the push-in drum 14 and are thereby separated. A second conveyor disk 17 is arranged downstream of the accelerator rollers 16.1, 16.2 with respect to the longitudinal axial conveying direction of the rod-shaped articles 20.

[0037] The accelerator roller pair with the acceleration rollers 16.1, 16.2 grips a rod-shaped article 20 emerging from the upstream feedthrough chamber 30 and accelerates the rod-shaped article 20. Subsequently, the separated, rod-shaped article 20 is subjected to a transverse axial movement component by the acceleration roller 16.1 and together with the conveyor disk 17 in order to introduce the rod-shaped article 20 into a receiving trough 15 of the push-in drum 14.

[0038] The feed-through chamber 30, through which the rod-shaped articles 20 are conveyed in the longitudinal axial direction, is arranged between the longitudinal conveyor 12 and the push-in drum 14. The feed-through chamber 30 is arranged upstream of the accelerator rollers 16.1, 16.2 and downstream of the longitudinal conveyor 12.

[0039] Detailed views of the feedthrough chamber 30 are shown in the Fig. 2 and 3shown schematically in a perspective sectional view and in a cross-sectional view.

[0040] In the feedthrough chamber 30, the rod-shaped articles 20 are subjected to blast air, so that particles on the front side of the rod-shaped articles 20 leading in the conveying direction are removed by blast air. Furthermore, particles on the surface of the rod-shaped articles 20 in the circumferential direction are also removed by blast air.

[0041] The feedthrough chamber 30 has a closed housing 32 (cf. Fig. 2 and 3 ). The housing 32 has an inlet opening 34 through which the rod-shaped articles 20 are conveyed into the interior of the housing 32, and an outlet opening 36 from which the rod-shaped articles 20 are conveyed out in the longitudinal axial direction.

[0042] The housing 32 has a cavity 38 within it. Three guide rails 40.1, 40.2, 40.3 extend within the cavity 38 between the inlet opening 34 and the outlet opening 36 to guide the rod-shaped articles 20 inside the housing 32 in the longitudinal axial direction toward the outlet opening 36. The guide rails 40.1, 40.2, 40.3 are arranged in a star shape around the rod-shaped articles 20 being conveyed in the longitudinal axial direction (see FIG. Fig. 3 ). Each of the guide rails 40.1, 40.2, 40.3 has guide surfaces 42.1, 42.2, 42.3, which face the rod-shaped articles 20 conveyed through the feedthrough chamber 30 or their casing in the circumferential direction.

[0043] The guide surfaces 40.1, 40.2, 40.3 also have air nozzles 44 along their longitudinal extent, preferably at regular intervals (cf. Fig. 2), which are aligned such that the blowing direction of the exiting blown air is perpendicular to the surface of the rod-shaped articles. As a result, blown air flows around the respective surfaces of the rod-shaped articles 20, whereby particles adhering in the circumferential direction of the rod-shaped articles 20 are removed from the surface by means of the blown air. In order to supply the blown air nozzles 44 of the guide rails 40.1, 40.2, 40.3 with blown air, the housing 32 has a corresponding duct system connected to a blown air source.

[0044] At the exit side of the rod-shaped articles 20 from the housing 32, an air curtain generating device 50 is arranged, which has a plurality of air nozzles 54 arranged in a ring shape. The air nozzles 54 are connected to a blast air source (not shown here), so that blast air is guided from the blast air source to the air nozzles 54 of the air generating device 50. After the blast air exits the air nozzles 54, a truncated cone-shaped or funnel-shaped air stream is generated as an air curtain to remove particles from both the end face of the rod-shaped articles 20 and their surface. The truncated cone-shaped air stream is designed as a type of air curtain, with the flow direction of the blast air streams being directed toward the inside of the housing 32 and toward the strand surface of the rod-shaped articles 20 conveyed through the feedthrough chamber, preferably at an acute angle.As a result, particles such as charcoal particles, tobacco particles or the like that are conveyed along the longitudinally axially conveyed articles 20 from the end face and from the surface in the circumferential direction of the rod-shaped articles are removed from the surface by the air flow generated by the air curtain.

[0045] The air curtain generating device 50 is preferably annular and connected to the ends of the guide rails 40.1, 40.2, 40.3. The annular air curtain generating device 50 is further surrounded by air passage openings 58, wherein the air passage openings 58 are formed on the exit side of the rod-shaped articles 20 from the housing 32.

[0046] In order to remove the particles removed from the surfaces of the rod-shaped articles 20 from the interior of the housing 32 of the feed-through chamber 30, a suction opening 60 is further formed laterally between the inlet opening 32 and the outlet opening 36 (cf. Fig. 3 ), which is connected to a vacuum source (not shown here). By applying negative pressure to the suction opening 60, the particles located in the cavity 38 are sucked out and removed from the housing 32. List of reference symbols

[0047] 10Transfer device 12Longitudinal conveyor 14Push-in drum 15Receiving trough 16.1, 16.2Accelerator roller 17Conveyor disc 20Rod-shaped article 30Feed-through chamber 32Housing 34Inlet opening 36Exit opening 38Cavity 40.1, 40.2, 40.3Guide rail 42.1, 42.2, 42.3Guide surface 44Air nozzle 50Air curtain generation device 54Air nozzle 58Air passage opening 60Extraction opening

Claims

1. A device (10) for conveying rod-shaped articles (20) for the tobacco processing industry, in particular filter rods (20), having a longitudinal transporting device (12) for transporting the rod-shaped articles (20) one behind the other in a row in the longitudinal axial direction, having a transverse axial transporting device (14), in particular a fluted drum, for transporting the rod-shaped articles (20) in the transverse axial direction, wherein the rod-shaped articles (20) can be or are transferred from the longitudinal transporting device (12) to the transverse axial transporting device (14) on the output side of the longitudinal transporting device (12) in a transfer region, wherein, in the transfer region of the rod-shaped articles (20) between the longitudinal transporting device (12) and the transverse axial transporting device (14), a bushing chamber (30) configured with a, preferably closed, housing (32) is provided for the rod-shaped articles (20), which bushing chamber is adapted such that longitudinal axially transported rod-shaped articles (20) can be or are transported between an inlet opening (34) of the housing (32) and an outlet opening (36) of the housing (32) through the bushing chamber (30), wherein an air curtain production device (50) which can be or is supplied with an air jet is provided in the housing (32) of the bushing chamber (30), wherein the flow direction of the air curtain which can be or is produced by the air curtain production device (50) is directed in the opposite direction to the longitudinal axial conveying direction of the rod-shaped articles (20) in the bushing chamber (30), characterized in that the air curtain production device (50) is arranged on the output side, preferably in the region of the outlet opening (36) of the housing (32), in the housing (32) of the bushing chamber (30).

2. The device (10) according to claim 1, characterized in that the housing (32) of the bushing chamber (30) has at least one or more air passage openings (58), preferably in the region of the outlet opening (36) or on the output side of the housing (32) or on an end face on the output side of the housing (32).

3. The device (10) according to claim 1 or 2, characterized in that the housing (32) has an extraction opening (60) for extracting and removing particles from the interior of the housing (32), preferably between the inlet opening (34) and the outlet opening (36), wherein an extraction device is or can be connected in particular to the extraction opening (60).

4. The device (10) according to one of claims 1 to 3, characterized in that multiple, in particular interacting, guide rails (40.1, 40.2, 40.3) for guiding the rod-shaped articles (20) are arranged between the inlet opening (34) and the outlet opening (36) in the interior of the bushing chamber (30).

5. The device (10) according to claim 4, characterized in that at least one guide rail (40.1, 40.2, 40.3) or the guide rails (40.1, 40.2, 40.3) each has / have air jet nozzles (44), wherein the air jet nozzles (44) are in particular aligned such that the air jet emerging from the air jet nozzles (44) is blown in the direction of the surface of the rod-shaped articles (20) transported through the bushing chamber (30).

6. The device (10) according to claim 4 or 5, characterized in that the guide rails (40.1, 40.2, 40.3) for the rod-shaped articles (20) are arranged uniformly and / or in a star pattern, preferably in cross-section, in the interior of the housing (32) of the bushing chamber (30).

7. The device (10) according to one of claims 1 to 6, characterized in that a separating device (16.1, 16.2) is provided in the transfer region on the output side on the longitudinal transporting device (12), so that rod-shaped articles (20) are or can be separated prior to the transfer from the longitudinal conveying device (12) to the transverse axial conveying device (14), wherein the bushing chamber (30) is arranged before the separating device (16.1, 16.2), based on the transporting direction of the rod-shaped articles (20).

8. The device (10) according to claim 7, characterized in that the separating device (16.1, 16.2) has one or more, in particular two, acceleration rollers (16.1, 16.2) for the rod-shaped articles (20).

9. The device (10) according to one of claims 1 to 8, characterized in that the air curtain production device (50) is configured annularly or in a self-contained manner or partially circularly.

10. The device (10) according to one of claims 1 to 9, characterized in that the air curtain production device (50) has multiple air outlet nozzles (54) which are or can be supplied with an air jet and / or has one or more air outlet slots which are or can be supplied with an air jet.

11. The device (10) according to one of claims 1 to 10, characterized in that the air curtain which is or can be produced by the air curtain production device (50) is or can be configured in the manner of a conical surface or in the manner of a partial conical surface or in the manner of a frustoconical surface or partially in the manner of a frustoconical surface.

12. A method for conveying rod-shaped articles (20) for the tobacco processing industry, in particular filter rods, from a longitudinal transporting device (12) for transporting the rod-shaped articles (20) in the longitudinal axial direction, wherein the rod-shaped articles (20) are transported in a row one behind the other longitudinally axially onto a transverse axial transporting device (14), in particular a fluted drum, for transporting the rod-shaped articles (20) in the transverse axial direction, wherein the rod-shaped articles (20) are transferred from the longitudinal transporting device (12) to the transverse axial transporting device (14) on the output side of the longitudinal transporting device (12) in a transfer region, wherein in the transfer region of the rod-shaped articles (20) between the longitudinal transporting device (12) and the transverse axial transporting device (14), the rod-shaped articles (20) are transported longitudinally axially through a bushing chamber (30) configured with a, preferably closed, housing (32) between an inlet opening (34) of the housing (32) and an outlet opening (36) of the housing (32) through the bushing chamber (30), wherein in the housing (32) of the bushing chamber (30) the rod-shaped articles (20) transported in a row one behind the other longitudinal axially are supplied with an air jet by an air curtain production device (50) arranged in the housing (32), wherein the flow direction of the air curtain produced by the air curtain production device (50) is directed in the opposite direction to the longitudinal axial transporting direction of the rod-shaped articles (20) in or on the longitudinal transporting device (12), characterized in that the air curtain production device (50) is arranged on the output side, preferably in the region of the outlet opening (36) of the housing (32), in the housing (32) of the bushing chamber (30).

13. The method according to claim 12, characterized in that the method is carried out using a device (10) for conveying rod-shaped articles (20) for the tobacco processing industry, in particular filter rods, according to one of claims 1 to 11.

14. A rod maker for the tobacco processing industry, in particular an endless filter rod maker, having a device (10) for conveying rod-shaped articles (20) for the tobacco processing industry, in particular filter rods, according to one of claims 1 to 11.

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