EP2363029A1 - Transport drum for the tobacco processing industry - Google Patents

Abstract

The conveying drum has retaining recesses (66) for retaining bar-shaped articles i.e. tobacco rods (52, 54), of a tobacco processing industry, where the articles are consecutively arranged in a row and conveyed axially transverse to each other. A suction device (80) is arranged in a circumference of the drum in sections and has a suction opening arranged in an area of front sides of the retaining recesses, where the front sides are turned towards each other. The suction device has a suction channel at the circumference of the drum at an angle in the range of 60 to 120 degree Celsius.

Description

description

The invention relates to a conveyor drum of the tobacco-processing industry with receiving troughs for receiving rod-shaped articles of the tobacco-processing industry, wherein the rod-shaped articles are arranged or arranged in at least one row queraxial axially behind one another or arranged. Furthermore, the invention relates to a machine of the tobacco processing industry, in particular Filteransetzmaschine.

Under the name "MAX" is a filter attachment of HAUNI Maschinenbau AG, Hamburg, known.

As a filter attachment machine is a device or machine for the production of filter cigarettes understood with means for receiving tobacco rods of double length with means for cutting these double-length tobacco sticks in tobacco rods simple length, with means for introducing filter plug double length between the tobacco rods of simple length, comprising means for connecting the double-length filter plug to the two tobacco rods of simple length by wrapping with a tipping paper leaflet formed as a bonding pad which is severed by means of a cutter from a tipping paper strip supplied with means for subsequently making a severing cut through the double-length filter plug; so that filter cigarettes normal use length arise.

If a sequence of tobacco rod filter plug tobacco rod groups disposed transaxially behind one another is fed to a padding device as a single-web material flow, then this is a single-web filter attachment machine. In a double-lane filter attachment machine, two streams of material are conveyed with articles to at least one covering device. In particular, in a two-lane filter tying machine, two lining devices are provided for one material flow in each case.

In the context of the present patent application, products of the tobacco-processing industry are understood to mean in particular rod-shaped articles or objects such as cigarettes, filter rods, multi-segment filter rods and the like.

On conveyor drums of the type mentioned rod-shaped articles of the tobacco processing industry, in particular filter rods and / or filter cigarettes and / or tobacco sticks, transported, the rod-shaped articles are arranged in one or more rows one behind the other and conveyed in transverse axial direction. These conveyor drums are usually used in the course of the assembly of filter rods and filter cigarettes, wherein filter rod components multiple use length in a so-called transverse process, ie transverse to their longitudinal axes, be prepared by a single or multiple subdivision, staggering and sequential series for their subsequent connection with other filter components or smoking article components. For this purpose, a plurality of conveyor drums for carrying out the processing steps necessary, these conveyor drums are preferably designed or designed as suction conveyor drums. In the course of these processing and handling steps, in particular a defined longitudinal axial positioning or mutual alignment of the filter rod components in their receiving troughs required for a separating cut on successive filter rod components is of importance for the number of tumors determining the length of the conveying path.

In addition, as conveying drums of the tobacco processing industry so-called spreader drums are known, wherein after a separation cut by a rod-shaped article these cut articles on a spreader drum in the longitudinal axial direction spaced or pulled apart axially along, so that in the delivery point of the spreader the article pairs with a predetermined longitudinal axial Distance between the head ends are delivered to the subsequent conveyor drum.

Furthermore, it is known that, for example, during the production of filter cigarettes on a filter attachment machine due to the handling or the manipulation of the filter cigarettes, amounts of tobacco dust or tobacco particles are formed which accumulate loosely in the machine and can clog them. Out DE-A-103 17 770 For example, a method for cleaning a cigarette manufacturing machine is described, wherein the machine is stopped for performing the cleaning.

Based on this prior art, the task of Invention is to improve the conveying of rod-shaped articles on a conveyor drum of the tobacco processing industry or in a machine of the tobacco processing industry.

The object is achieved by a conveyor drum of the tobacco-processing industry with receiving troughs for receiving rod-shaped articles of the tobacco industry, wherein the rod-shaped articles are arranged or arranged in at least one row queraxial behind one another or arranged, which is further developed by the conveyor drum on its circumference at least partially has a suction device.

The invention is based on the idea that during the promotion of rod-shaped articles, in particular of tobacco rods, by a, in particular laterally arranged on the conveyor drum, suction at the frontal head ends of the tobacco sticks during the promotion of promoted on the conveyor drum tobacco sticks in the ambient air of the On the conveyor drum promoted tobacco sticks existing particles are removed or removed using the suction device of the conveyor drum. As a result, the load of particles on the conveyor members or on the conveyor drums during operation of a production machine is significantly reduced, whereby the quality of the filter cigarette, for example, produced on a filter attachment is increased.

At the same time the contamination of the particles or free tobacco crumbs is reduced by the removal of the free articles of the located in the ambient air of the conveying members or of the filter attachment on the articles, whereby after production of filter cigarettes, for example, the quality of the test by means of corresponding Prüforgane also increased because less Disturbing signals occur during the test by the entrained in the air flow of the promoted rod-shaped article and removed before the test carried out on the conveying elements particles.

Overall, a particle-poor environment is thereby achieved during the conveyance of the tobacco sticks or the filter cigarettes on a filter attachment machine and also in the reception area of (subsequent) testing devices.

In this case, according to the concept of the invention, the suction device is formed integrally on the conveyor drum, so that the suction device is part of the conveyor drum. In this case, the suction device for removing located in the ambient air of the conveying member or the conveying drum and entrained particles is formed. The removal of the particles takes place during the operation of the conveyor drum, i. during cross-axial transport of the tobacco sticks and during operation, for example, a filter attachment machine.

In this case, the particles moved or moved along by the ambient air on the conveyor drum are collected and carried away locally on the conveyor drum, so that the particles or tobacco crumbs are removed directly from the environment of the conveyed rod-shaped articles, in particular tobacco sticks, whereby the concentration of the articles resp Tobacco crumbs, for example, when falling out of a head of a tobacco rod is already reduced during the promotion on this conveyor drum. Here, in the ambient air of the rotating conveyor drum are laterally discharged to the conveyed rod-shaped articles, wherein a negative pressure is applied to the suction device, for example by means of a suction fan.

Since the suction air holes of the receiving troughs of the conveyor drum are subjected to negative pressure to hold rod-shaped articles in the receiving troughs during rotation of the drum body of the conveyor drum, for the provision of negative pressure at the Saugluftbohrung a (first) vacuum source, e.g. a (first) suction fan or a fan provided. In the context of the invention, a (second) negative pressure source is provided, so that the conveyor at the drum, preferably stationary, suction device for suction of tobacco particles or the like is subjected to negative pressure or, wherein in particular the vacuum source for the receiving troughs and the vacuum source for the suction device be operated independently of each other or are operable so that the negative pressure at the Saugluftbohrungen the receiving troughs and the negative pressure at the suction device are individually and / or independently adjustable or set.

In addition, in one embodiment of the conveyor drum for Queraxialen conveying the rod-shaped article is provided, that the suction device has at least one suction opening, wherein the at least one suction opening in the region of, preferably facing each other, end faces of the receiving troughs or advantageously on an end face of the receiving troughs for the rod-shaped Article is arranged. This ensures that, for example, when conveying tobacco sticks accidentally falling out of the head ends tobacco crumbs are removed at the end faces immediately after falling from the surface of the conveyor drum or from the environment.

In addition, it is advantageously provided in the conveying drum, that the suction device at least one suction channel in the circumferential direction of the conveyor drum, wherein the at least one suction channel is at least partially provided on the circumference of the conveyor drum.

In particular, it is favorable that the suction channel is arranged in an arc section with an angle between 30 ° to 180 °, preferably between 45 ° and 150 °, more preferably between 60 ° and 120 °, on the circumference of the conveyor drum.

Furthermore, an embodiment of the conveyor drum is characterized in that the suction device has two or more suction openings or two or more suction channels, wherein the suction openings or the channels are arranged between two längsaxial movable receiving troughs. This ensures that tobacco crumbs are removed from the ends of these ends, for example after cutting double-length tobacco sticks into tobacco sticks simple use length after performing the separation cut from the cut tobacco rod ends, in particular in cut tobacco rod pairs, the longitudinal axis of each other a spreading drum are spaced from each other, the sucked and oppositely disposed ends of the cut tobacco rod pairs by means of the laterally arranged and acting suction device using two or more lateral suction openings or suction channels, which are respectively facing the cut head ends of the tobacco sticks, falling tobacco crumbs are sucked off.

For this purpose, it is further provided in a preferred embodiment that one or more receiving troughs are formed on a longitudinally axially movable carriage or transport carriage, wherein the receiving troughs are designed as suction troughs. In this case, the carriages of the conveyor drum are designed as longitudinally movable conveyor segments for the rod-shaped articles, the carriages having as conveying segments one or more receiving cavities for the rod-shaped articles to be transported.

A preferred embodiment of the conveyor drum results from the fact that the suction device has at least one further suction channel, wherein this suction channel is arranged in the interior of the conveyor drum to convey the particles or tobacco crumbs removed from the environment of the conveyed article from outside to inside.

Preferably, the suction device is formed between a transfer point for taking over rod-shaped articles and a delivery point for discharging the rod-shaped articles to be transported or transported on the conveyor drum.

Moreover, in one embodiment of the conveyor drum, it is preferred that the suction device be stationary, i. stationary, is supported within the conveyor drum, in particular, the longitudinally axially movable carriage are mounted transversely rotatable about the axis of rotation of the conveyor drum. Due to the stationary mounting of the suction device or the suction channels within the conveyor drum, the suction suction device or the suction channels do not run, in contrast to the receiving troughs mounted or driven in rotation about the axis of rotation of the conveyor drum.

In particular, the conveyor drum is designed as a spreading drum, wherein the spreading drum is provided with an integrated suction device according to the invention.

In addition, the object is achieved by a machine of the tobacco-processing industry, in particular filter attachment machine, which is formed with or using a conveyor drum according to the invention. To avoid repetition, reference is expressly made to the above statements.

Further features of the invention will become apparent from the description of embodiments according to the invention together with the claims and the accompanying drawings. Embodiments of the invention may satisfy individual features or a combination of several features.

Fig. 1

schematisch eine Filteransetzmaschine in einer Vorderansicht,

Fig. 2

schematisch eine perspektivische Ansicht einer Spreiztrommel zur Förderung von Tabakstöcken im Ausschnitt;

Fig. 3

schematisch eine Detailansicht der in Fig. 2 dargestellten Spreiztrommel im Ausschnitt;

The invention will be described below without limiting the general inventive idea by means of embodiments with reference to the drawings, reference being expressly made to the drawings with respect to all in the text unspecified details of the invention. Show it:

Fig. 1

schematically a filter attachment machine in a front view,

Fig. 2

schematically a perspective view of a spreading drum for conveying tobacco rods in the cutout;

Fig. 3

schematically a detailed view of in Fig. 2 Spreader drum shown in the neckline;

In the following figures, identical or similar elements or corresponding parts are provided with the same reference numerals, so that a corresponding renewed idea is dispensed with.

In Fig. 1 a Filteransetzmaschine is shown in fragmentary form in a front view, wherein the Filteransetzmaschine via a drum assembly T for supplying tobacco sticks from a schematically drawn cigarette rod machine P tobacco sticks of double-use length receives. A cigarette rod machine is known, for example, under the name "PROTOS" of the patent applicant.

The drum arrangement T comprises a take-over drum 15, by means of which tobacco sticks of double use length are taken over by the cigarette rod making machine P and are transferred transversely to a subsequent conveyor drum 16. Subsequent to the conveyor drum 16, the tobacco sticks are delivered to a subsequent cutting drum 17, so that the double-length tobacco rods are cut on the cutting drum 17 by means of a separate cutting blade 18 in tobacco sticks simple use length.

Thereafter, the tobacco sticks simple use length as a pair of tobacco sticks are passed in pairs to a subsequent spreading drum 19, so that the tobacco sticks of a tobacco rod pair are spread on the spreading drum 19 in the longitudinal direction and spaced from each other, wherein the distance between the opposite head ends of längsaxial spaced tobacco sticks is so large in that, in a subsequent step, a filter plug, preferably twice as long, is inserted between the longitudinally axially spaced tobacco rods of a tobacco rod pair. Subsequent to the spreading drum 19, the tobacco sticks are transferred via a conveyor drum 20 to a compilation drum 21.

The cigarette rod maker P can be designed as a single-strand machine for producing a tobacco rod or as a multi-strand machine, in particular double-stranding machine, for the simultaneous (and parallel) production of several, in particular two parallel, tobacco sticks, wherein the of the transfer drum 15 of the cigarette rod machine P taken and by a (first) wrapping strip wrapped tobacco sticks (as a rod-shaped article of a second type) are arranged one behind the other in a row and are promoted in transverse axial direction on the transfer drum 15.

On their conveyor to the compilation drum 21, the tobacco rods are cut twice the length of use and spread longitudinally axially. On the assembly drum 21 are transported over a further drum assembly M double-length filter plugs, which are inserted between two longitudinally spaced tobacco rods. As a result, a sequence of tobacco rod filter plug tobacco rod groups arranged transaxially behind one another on the assembly drum 21 is formed as a rod-shaped article group.

The drum assembly M comprises a removal drum 11, by means of the (not shown here) filter rod magazine filter rods multiple useful length (as a rod-shaped article of a first kind), which are covered by a first wrapping strip, are removed and transverse axial promotion by means of one or more of the Removing drum 11 arranged cutting blade 11 a are cut into filter plug twice the length of use, so that then the filter plugs are staggered on a staggering drum 12. Following the staggering drum 12, the filter plugs are arranged on a sliding drum 13 transaxially in a row one behind the other and by means of a subsequent as an accelerator drum formed insert drum 14 passed to the assembly drum 21.

The assembled rod-shaped article groups, consisting of tobacco rod filter plug tobacco rod groups, are transferred from the assembly drum 21 to a conveyor drum 22, so that the assembled tobacco rod filter plug tobacco rod groups are transported to a pad apparatus 110. In DE-C-39 18 137 There is described in detail a coating apparatus which is fully incorporated in the content of the present application.

A glued and conveyed tipping paper strip 111 is cut in the tipping apparatus 110 on a cutting drum 112 by the knives of a knife drum 113 into tipping flakes. The cut compound leaflets are respectively transferred to the article groups or tobacco rod filter plug tobacco rod groups on the conveyor drum 22 or pinned.

After adhering the cut and individual bonding sheets to one article group, the rod-shaped article groups are further transported to a subsequent rolling drum 26 and rolling means 27 by which the bonding sheets (as the second wrapping strip) are completely wrapped around the tobacco rod filter plug tobacco rod groups , The rolling device 27 consists in one embodiment of a web wheel, a rolling hand with a rolling surface and the output side of a rolling roller, wherein the rolling surface and the rolling drum 26 form a rolling channel, are wrapped in the article groups with the connecting papers, so that double-length filter cigarettes are formed.

The double-length filter cigarettes are subsequently transferred to a conveyor drum 28 and further below to a further conveyor drum 29 and provided for the further processing process on a filter attachment machine.

From the conveyor drum 29, the double-length filter cigarettes are conveyed via a conveyor drum 30 to a cutting drum 31, to which a cutting blade 32 is arranged adjacent, which produces from the double-length filter cigarettes by a central separating cut filter cigarettes simple use length.

The filter cigarettes are then transferred from the cutting drum 31 to a spreading drum 33. On the spreader drum 33, the filter cigarette pairs are spaced longitudinally from each other and then transferred to a first test drum 34. On the test drum 34, a first testing device 44 is provided, which filters the filter cigarettes of a first test, e.g. a bedside examination, undergoes.

In the context of the invention, it is possible that the produced filter cigarettes are subjected to a leak test and / or a head end test and / or a ventilation test on the first test element 44. In addition, it is possible within the scope of the invention that an optical examination of the cigarettes on the drum 34 is carried out by means of the checking device 44.

Subsequently, the filter cigarettes are transferred from the test drum 34 to a subsequent second test drum 35, to which a second test element 45 is provided to subject the cigarettes to further quality tests and / or at least one of the aforementioned test not performed on the test drum 34. In Fig. 2 is a perspective view of a spreading drum 19 according to the invention shown schematically, which is part of a drum assembly T of a filter attachment machine (see. Fig. 1 ) for cross-axial promotion of tobacco sticks from a cigarette rod maker P to a compilation drum 21 of the filter attachment machine.

The spreading drum 19 has in the circumferential direction and in the conveying direction via a plurality of juxtaposed and successively arranged Transsportschlitten 62, 64, each having a plurality of receiving troughs 66 for receiving rod-shaped articles or tobacco sticks 52, 54, so that on the transport carriage 62, 64 respectively arranged tobacco sticks 52, 54 are arranged transversely axially behind one another in a row.

The transport carriages 62, 64 are arranged to be movable or displaceable in the axial direction using guide rods 71, 72 arranged axially parallel to the axis of rotation of the spreading drum 19, on which the transport carriages 19 are arranged.

According to the in Fig. 1 illustrated tobacco rod pairs consisting of cut tobacco rods 52, 54 taken over by a cutting drum 18, wherein in the transfer point the transport carriage 62, 64 are juxtaposed with a small or smallest distance in the longitudinal axial direction next to each other, and after the acquisition of the tobacco sticks 52, 54th from the cutting drum 18 in the respective receptacles 66 of the transport carriage 62, 64, the transport carriage 62, 64 are moved away from each other in the longitudinal axial direction or spaced from each other (see. Fig. 2 ), so that by the longitudinal axial spacing the tobacco sticks 52 on the transport paths 62 and the tobacco sticks 54 are longitudinally spread on the transport carriage 64 and after a longitudinal axial complaint of the tobacco rod pairs 52, 54, the longitudinally axially spaced tobacco rods 52, 54 to a subsequent conveyor drum (see. Fig. 1 20).

In addition, the spreading drum 19 has a over its peripheral surface between the längsaxial sliding transport carriage 62, 64 formed and centrally disposed suction duct 80 to tobacco particles or tobacco crumbs that fall out of the opposite head ends of the tobacco sticks 52, 54, and into the interior of the Dissipating the spreading drum 19.

In Fig. 3 is shown in a schematic perspective view of the spreading drum 19 in the neck, wherein in Fig. 3 the initial region of the suction channel 80 is shown on the spreading drum 19.

In the conveying direction of the tobacco rod pairs 52, 54 of the suction duct 80 starts in a conveying section in which the tobacco sticks 52, 54 are spaced after their inclusion on the spreading drum 19 by a small distance from each other or are. The suction channel 80 is formed in the middle between the transport carriages 62, 64, wherein the suction channel 80 has on its outer side a cover 82, wherein the cover 82 extends arcuately as a cover plate along the circumferential direction of the spreading drum 19. The distance of the cover 82 to the surface of the transport carriages 62, 64 or the radial distance of the cover 82 to the axis of rotation of the spreader drum 19 is determined so that the cover 82 the tobacco sticks 52 received on the spreader drum 19 and conveyed along the lateral cover 82 in the circumferential direction 54 surmounted.

Furthermore, the suction channel 80 designed as a suction device has between the transport carriages 62, 64 via an opening 84 to the interior of the spreading drum 19, to which, as in Fig. 3 indicated schematically, a vacuum source in the form of a suction fan 85 is connected to pressurize the suction device 80 with negative pressure.

The suction channel 80 also has a centrally disposed on the cover 82 and to the inside or to the inside of the spreading drum 19 facing towards partition 86, which is bounded by the extending in the circumferential direction of the spreading drum 19 cover 82 on the outside. By the partition wall 86 it is achieved that when applying a negative pressure by means of the suction fan 85 tobacco crumbs from the vicinity of the partition 86 facing head ends of the tobacco sticks 52, 54 sucked laterally on both sides of the partition wall 86 and removed from the surface of the spreading drum 19.

The suction channel 80 extends in the circumferential direction of the spreading drum between a transfer point for the tobacco sticks 52, 54 to be transported to a delivery point to a subsequent conveyor drum on which the spread tobacco rod pairs 52, 54 are further promoted under transverse axial conveying direction.

All mentioned features, including the drawings alone to be taken as well as individual features that are disclosed in combination with other features are considered alone and in combination as essential to the invention. Embodiments of the invention may be accomplished by individual features or a combination of several features.

LIST OF REFERENCE NUMBERS

11

removal drum

11a

cutting blade

12

staggering drum

13

pushing drum

14

insert drum

15

transfer drum

16

conveyor drum

17

cutting drum

18

cutting blade

19

spreading drum

20

conveyor drum

21

Assembly drum

22

conveyor drum

26

rolling drum

27

rolling device

28

drum

29

drum

30

conveyor drum

31

cutting drum

32

cutting blade

33

spreading drum

34

testing drum

35

testing drum

44

Review body

45

Review body

52

tobacco rod

54

tobacco rod

62

transport carriage

64

transport carriage

66

receiving trough

71

guide rod

72

guide rod

80

suction

82

cover

84

opening

85

aspirator

86

partition wall

M

Drum arrangement (filter plug)

T

Drum arrangement (Tobacco sticks)

P

Cigarette-making machine

Claims (11)

Conveying drum (19) of the tobacco processing industry with receiving troughs (66) for receiving rod-shaped articles (52, 54) of the tobacco-processing industry, wherein the rod-shaped articles (52, 54) in at least one row transverse axial succession can be arranged or arranged or arranged , characterized in that the conveyor drum (16) on its circumference, at least in sections, a suction device (80). Conveying drum (19) according to claim 1, characterized in that the suction device (80) has at least one suction opening, wherein the at least one suction opening in the region of, preferably facing each other, end faces of the receiving troughs (66) is arranged. Conveying drum (19) according to claim 1 or 2, characterized in that the suction device (80) has at least one suction channel, wherein the at least one suction channel is arranged at least in sections on the circumference of the conveyor drum (19). Conveying drum (19) according to claim 3, characterized in that the suction channel in an arc section at an angle between 30 ° to 180 °, preferably between 45 ° and 150 °, more preferably between 60 ° and 120 °, at the periphery of the conveyor drum (19 ) is arranged. The conveying drum (19) according to any one of claims 1 to 4, characterized in that the suction device (80) has two or more suction openings or two or more suction channels, wherein the suction openings or the suction channels, preferably in parallel, are formed between two longitudinally axially movable receiving troughs. Conveying drum (19) according to one of claims 1 to 5, characterized in that a plurality of receiving troughs (66) on a longitudinally axially movable carriage (62, 64) are formed. Conveying drum (19) according to one of claims 1 to 6, characterized in that the suction device (80) has at least one suction channel, wherein the suction channel is arranged in the interior of the conveyor drum (19). Conveying drum (19) according to one of claims 1 to 7, characterized in that the suction device (80) between a takeover point for taking over rod-shaped Articles and a delivery point for dispensing on the conveyor drum (19) to be transported or transported rod-shaped article (52, 54) is formed. Conveyor drum (19) according to any one of claims 1 to 8, characterized in that the suction device is mounted stationary within the conveyor drum (19), wherein in particular the longitudinally axially movable carriage (62, 64) mounted transversely rotatably about the axis of rotation of the conveyor drum (19) are. Conveying drum (19) according to one of claims 1 to 9, characterized in that the conveyor drum (19) is designed as a spreading drum (19). Machine of the tobacco-processing industry, in particular filter attachment machine, with a conveyor drum (19) according to one of claims 1 to 10.

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