DE102008035383B4 - Conveyor drums of the tobacco processing industry - Google Patents

Abstract

A conveying drum (10) of the tobacco-processing industry with receiving troughs (16, 18, 52, 54) for rod-shaped articles (20) of the tobacco-processing industry, characterized in that two different types of receiving troughs (16, 18, 52, 54) are provided wherein each type of receiving wells (16, 18; 52, 54) is adapted to at least one predetermined diameter of the articles (20) conveyed or to be conveyed on the conveyor drum (10) such that two different articles each on the conveyor drum (10) can be conveyed with different diameters.

Description

The invention relates to a conveyor drum of the tobacco-processing industry with receiving troughs for rod-shaped articles of the tobacco-processing industry and a machine of the tobacco-processing industry, in particular Filteransetzmaschine.

In machines of the tobacco processing industry, in particular filter attachment machines, conveyor drums are used to transport cigarettes, filter pieces or their components. The term "components" of the cigarettes and filter rods are understood in the context of the invention, sections of paper and the like of sheet and / or sheet material, for. B. sections and / or webs of cigarette paper, filter paper or tipping paper for connecting tobacco pieces with filter plug.

The conveyance of the aforementioned objects during the manufacture of cigarettes, filters and filter cigarettes is generally carried out in modern production machines of the tobacco processing industry by means of conveyor drums, the lateral surface for conveying rod-shaped objects (cigarettes, filter rods or filter plugs, filter cigarettes) with grooves for receiving the objects provided or for demanding sheet-like and / or sheet-like objects (tipping paper sections and / or webs) is substantially smooth.

During promotion, these objects of the tobacco processing industry are held by suction on the conveyor drums, which abuts on corresponding channels, usually holes. These channels are generally arranged in rows whose lengths correspond to the dimensions of the objects to be transported transversely to the transport direction.

In Filteransetzmaschinen be on the conveyor drums rod-shaped articles such. As tobacco sticks or filter plug or filter rods, transversely promoted in receiving troughs of the conveyor drum. Here, the receiving troughs are arranged at predetermined pitches on the peripheral surface of the conveyor drum.

The spacing distance is understood to mean the transverse axial distance between the receiving cavities. The distance is measured from the trough center to the subsequent trough center of the on the surface of the smoking article groups transported trough conveyor. The pitch in a drum conveyor is the transverse axial distance or the length of the (arc) arc between (adjacent) well centers on the circular line on which the well centers of the wells are arranged. In a linear tray conveyor, the pitch corresponds to the linear distance in the cross-axial direction between the well centers.

Also, in DE 10 2004 028 636 A1 respectively. DE 10 2004 028 639 A1 as conveying drums of the tobacco processing industry reveals each tipping paper rolls. The tipping paper rolls are used on filter tipping machines to transport cut tipping paper strips and / or uncut tipping paper webs, with the outer surface of the tipping paper rolls being smooth.

Further disclosed DE 10 2005 027 554 A1 a conveyor drum of the tobacco-processing industry, wherein lever segments are pivotally mounted with receptacles for rod-shaped articles in respective versions. Here, each lever segment has two receptacles for rod-shaped articles, wherein the lever segments have a base body and a lever segment head, which is detachably connected to the base body.

Further disclosed EP 1 466 535 A1 a machine of the tobacco processing industry, which has conveyor drums for rod-shaped articles of the tobacco processing industry. For example, a conveyor drum is designed as Ärmchentrommel.

Based on this prior art, the object of the present invention is to allow on a machine of the tobacco processing industry, such as a filter attachment, a format change in a simple manner, the design effort should be kept as low as possible and also the conveying elements quickly to different Formats should be adjusted.

This object is achieved by a conveyor drum of the tobacco-processing industry with receiving troughs for rod-shaped articles of the tobacco processing industry, which is further developed in that two different types of receiving troughs are provided, each type of receiving troughs on at least a predetermined diameter promoted on the conveyor drum or to be conveyed article is adapted, so that on the conveyor drum two different articles or article formats of the same genus are each funded with different geometric parameters.

The invention is based on the idea that two different cigarette formats are processed or produced on a filter attachment machine, the cigarettes of the different formats being in the diameter of the Distinguish cigarettes. For example, cigarette formats having a diameter of, for example, 7.9 and 5.4 mm are produced on the same filter tipping machine. Preferably, cigarette formats having a first diameter of 4.0 to 6.5 mm, in particular preferably 5.0 to 6.1 mm, and a second diameter of 6.5 to 8.5 mm, in particular 7.3 to 8.3 mm, produced on the same filter attachment machine.

Since in this case the different rod-shaped smoking article components of cigarettes z. B. differ in terms of diameter or length, it is necessary for the production of different cigarette formats that the conveyor drum has appropriate, adapted to the processed rod-shaped article, format-specific receiving troughs. Characterized in that adapted receiving troughs are provided on a conveyor drum for each to be processed on the filter attachment cigarette format receiving troughs, a quick format change to the Filteransetzmaschine is carried out in a simple manner.

In this case, the receptacles or receiving wells are adapted in their diameter or in their geometry to the different diameters of the processed and to be promoted rod-shaped article of the tobacco processing industry of the same genus on the conveyor drum according form complementary. In particular, the recordings of a type or receiving troughs are each adapted to the diameter of the various formats, so that one type of recording is provided for each format.

In addition, the rod-shaped articles are conveyed on the conveying drum transaxially on the rotating driven conveyor drum. In the context of the invention, a conveyor drum is also understood to mean conveyor belts or the like which have a virtually endless circulating conveyor belt and are designed with corresponding receptacles for rod-shaped articles of the tobacco-processing industry. The fact that a conveyor drum is provided with two different types of recording or Muldengattungen, the filter tying machine can be converted or adapted to the new cigarette format after production of a cigarette format by a few simple steps of the operating staff.

In addition, it is provided in one embodiment that at least one receiving trough of a second type is arranged between two receiving troughs of a first type. In this case, for example, on a conveyor drum or on the peripheral surface of the conveyor drum each two recording modes arranged alternately one behind the other transaxially. Preferably, in this case the recordings of the different types are arranged alternately.

In addition, an embodiment is characterized in that in addition to a Queraxial successively arranged row of receiving wells of a first kind a transversely axially successively arranged series of receiving wells of a second type is arranged. Thus, it is for example possible that on a conveyor drum on the peripheral surface two separate rows are formed with receptacles of a kind or receiving troughs for the rod-shaped article, wherein the recordings of each row from each other in terms of their geometry, eg. B. curvature differ. For example, a number of recordings take rod-shaped articles, e.g. As cigarettes, filter plugs or the like, with a larger diameter and transport them, while in the other, adjacent row recordings (of the second kind) record smaller rod-shaped articles and transport during rotation of the conveyor drum. The recordings of each row are arranged side by side in longitudinal axial alignment and parallel to each other in transverse axial orientation or conveying direction.

Furthermore, the conveyor drum is characterized in that the conveyor drum is designed such that in a loaded with negative pressure range one type of receiving wells is subjected to negative pressure or is and the second type of receiving wells is not subjected to negative pressure or is. As a result, only the recordings of a kind under applied negative pressure with negative pressure are applied, which are actively operated for the production of filter cigarettes on a filter attachment machine. In the other recordings, the negative pressure is switched off accordingly, so that these recordings of the other kind are not activated.

Furthermore, in one embodiment, the conveying drum is characterized in that the negative pressure at the receiving wells of a kind can be switched on or off by actuation of a, in particular common, switching device, wherein in particular the negative pressure at the receiving wells of the second kind by the operation of, preferably common, Switching device, preferably in alternation with the receiving troughs of the first kind, can be switched off or added.

In particular, it is provided in a conveyor drum according to the invention, that the switching device is formed with one or more, preferably rotatable or displaceable, switching channels in the drum body. Here, the movable switching channels z. B. provided with longitudinally displaceable slides.

In order to reduce the pollution under applied negative pressure at the suction holes in the interior of the conveyor drum, it is also provided that covers are provided for the unused and not acted upon with negative pressure or to be acted receiving troughs of a kind, in particular the covers are arranged on or in the receiving troughs or are. As a result, the ineffective recordings are closed accordingly.

In addition, in an alternative solution to a conveyor drum of the tobacco industry with receiving troughs for rod-shaped articles of the tobacco industry, suggested that a first type of receiving troughs is provided on the conveyor drum, wherein the first type of receiving troughs by actuation of an adjusting by a second type of receiving wells is replaceable or replaced, each type of receiving wells is adapted to a predetermined diameter of the conveyed on the conveyor drum or to be conveyed article.

Here, the invention is based on the idea that using the conveyor drum, the recordings of a first type are replaced or replaced by the recordings of a second type, so that on the conveyor drum only one predetermined format or a predetermined type of rod-shaped articles, respectively Diameters, being conveyed or being conveyed while the other articles for the second format are not conveyed on the conveyor drum.

For this purpose, it is further provided that two types of receiving troughs for the articles of the tobacco processing industry are formed on a rotary body, wherein in a first position of the rotary body on the conveyor drum, a first type of receiving troughs is activated for the rod-shaped article to a corresponding rod-shaped article and after or by actuation or rotation of the rotary body, the first type of receiving wells is or is placed in a second, passive position and a second type of receptacles for rod-shaped articles is or is activated in a corresponding position to receive corresponding rod-shaped articles.

Furthermore, in one embodiment, it is preferred that two different types of receiving cavities are provided on the rotating body on its outer side, wherein the different receiving cavities are formed opposite to each other on the rotating body and are interconnected by means of a bore in the rotating body, wherein in particular the rotating body in an outer fit the conveyor drum, in particular a drum body, is introduced or is.

In an alternative to the rotary body with the various types of recordings is provided that conveyor segments are exchanged with different types of recordings. In a format change while the conveyor segments are exchanged with recordings of a kind against the conveyor segments with recordings of a second kind on the conveyor drum. The attachment of the conveyor segments can be connected to the main body or drum body by screws or quick fasteners, such. B. Velcro or the like.

In addition, according to a further solution of the object or in a development, it is preferred that in each case adapters are used in receiving troughs of a first type, so that receiving troughs of the second type are formed. In this case, adapters or mold inserts or the like are introduced into the receptacles of the first type, so that depressions or receptacles of the second type are formed by the mold inserts arranged therein. This is also an easy way to perform a format change on a conveyor drum in a machine of the tobacco processing industry.

For this purpose, it is further provided that the adapter or mold inserts are adapted in arrangement on the conveyor drum on the inwardly facing outside of the curvature of the receiving troughs of the first kind and the adapters on the outwardly facing outside have or form a receiving trough of the second type.

Advantageously, the conveyor drum of the tobacco processing industry has a cylindrical or conical shape. For example, a tapered table drum may also be formed with different types of receptacles for different formats.

In addition, the object is achieved by a machine of the tobacco-processing industry, in particular filter attachment machine, with at least one embodiment of a conveyor drum described above. To avoid repetition, reference is expressly made to the above statements.

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

1 schematically a cross section through a conveyor drum of the tobacco processing industry in the neck;

2 schematically a cross section through another conveyor drum of the tobacco processing industry in the neck and

3 schematically another embodiment of a conveyor drum of a partial cross-sectional view.

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.

1 shows a cross section of a conveyor drum 10 in the clipping. The conveyor drum 10 has inside a fixed control body 12 on top of that a rotatable, outer drum body 14 is driven in rotation.

The drum body 14 has on its outside Muldenaufnahmen 16 . 18 on, which are arranged alternately one behind the other, based on the conveying direction. With the reference numerals 16 receiving troughs are referred to, which are suitable rod-shaped articles, such. As tobacco sticks or filter plug or filter rods with larger diameters, record. The smaller receptacles 18 are designed to accommodate rod-shaped articles of smaller diameters. Here are the receiving troughs 16 for receiving rod-shaped articles with larger diameters and the smaller receiving troughs 18 for receiving smaller rod-shaped articles with smaller diameters, a series of cross-axially and alternately arranged one behind the other receiving cavities.

At the in 1 illustrated embodiment are for transport in the larger receiving troughs 16 corresponding rod-shaped article 20 arranged. The rod-shaped article 20 may be tobacco sticks, filter rods or sticks or finished cigarettes.

To the rod-shaped article 20 in the recordings 16 to hold, is a negative pressure inside the conveyor drum 10 formed, wherein the application of the negative pressure and the effectiveness of the negative pressure on the recordings 16 by means of the control body 12 is switched.

To the holding vacuum on an unnecessary trough or the unused shots 18 ineffective, are in the interior of the outer drum body 14 rotary vane 22 in the to the receiving troughs 16 . 18 leading suction holes 24 arranged.

At the in 1 illustrated embodiment, the rotary valve 22 in passing position to the larger receiving troughs 16 while the slider 22 in the suction hole 24 to the smaller receiving trough 18 in locked position. As a result, the holding vacuum applied in the interior is at the or the receiving troughs 18 disabled.

A further possibility of deactivating a hold vacuum is additionally also in accordance with a further embodiment 1 shown schematically. This will be when not in use the smaller receiving troughs 18 closure body 26 put on the hollows as a kind of cover, leaving the suction hole 24 is sealed to the drum interior.

2 shows schematically in cross section a further embodiment of a conveyor drum 10 , wherein the outer drum body 14 from two nested ring cylinders 28 . 30 consists. The inner ring cylinder 28 has outwardly directed suction holes 32 on, the corresponding position of the receiving troughs 16 . 18 with the suction holes 34 . 36 the receiving troughs 16 . 18 interact. Should by means of the conveyor drum 10 After the production of cigarettes with a larger diameter cigarettes with a smaller diameter and a different format are produced, so are the ring cylinders 28 . 30 detached from each other and moved relative to each other, so that then the inner suction holes 34 of the cylinder body 28 with the suction holes 36 the smaller receiving trough 18 interact.

3 shows a further embodiment of a conveyor drum 10 , with the different sized rod-shaped article 20 can be transported. Here, the conveyor drum has 10 in the embodiment according to 3 over an outer drum body 44 , with inward suction holes 46 , In the outer area of the drum body 44 are at the bottom of the suction holes 46 in a partially circular fit 48 rotating body 50 arranges.

The rotary bodies 50 are with two differently sized receptacles 52 . 54 designed so that depending on the position of the rotating body 50 the receiving trough 54 to the outside or the smaller receiving trough 52 facing outward. Between the receiving troughs 52 and 54 of the rotary body 50 is inside the rotating body 50 a hole 56 formed so that when applying a holding vacuum, the holding vacuum on the outer receiving trough 54 becomes effective while transporting an item 20 the article in the receiving trough 54 to keep. Preferably, in a format change on a conveyor drum more or all rotary body 50 turned so that the respective other type of recording points outward.

LIST OF REFERENCE NUMBERS

10

conveyor drum

12

control body

14

drum body

16

receiving trough

18

receiving trough

20

rod-shaped article

22

rotary vane

24

suction bore

26

closure body

28

ring cylinder

30

ring cylinder

32

suction bore

34

suction bore

36

suction bore

44

drum body

46

suction bore

48

fit

50

rotating body

52

receiving trough

54

receiving trough

56

suction bore

Claims (14)

Conveyor drum ( 10 ) of the tobacco-processing industry with receiving troughs ( 16 . 18 ; 52 . 54 ) for rod-shaped articles ( 20 ) of the tobacco-processing industry, characterized in that two different types of receiving wells ( 16 . 18 ; 52 . 54 ) are provided, each type of receiving wells ( 16 . 18 ; 52 . 54 ) to at least a predetermined diameter of the on the conveyor drum ( 10 ) (article) ( 20 ), so that on the conveyor drum ( 10 ) two different articles each with different diameters are eligible. Conveyor drum ( 10 ) according to claim 1, characterized in that between two receiving troughs ( 18 ) a first type at least one receiving trough ( 16 ) of a second type is arranged. Conveyor drum ( 10 ) according to claim 1 or 2, characterized in that in addition to a Queraxial successively arranged row of receiving troughs ( 18 ) a first type a transversely axially successively arranged series of receiving troughs ( 16 ) of a second type is arranged. Conveyor drum ( 10 ) according to one of claims 1 to 3, characterized in that the conveyor drum ( 10 ) is designed such that in a pressurized delivery area with a kind of receiving troughs ( 18 ) is or is subjected to negative pressure and the second type of receiving wells ( 16 ) is not subjected to negative pressure or is. Conveyor drum ( 10 ) according to claim 4, characterized in that the negative pressure at the receiving troughs ( 18 ) of a kind by operation of a, in particular common, switching device ( 22 ) can be switched or switched off, wherein in particular the negative pressure at the receiving troughs ( 16 ) of the second type by the operation of the, preferably common, switching device ( 22 ), preferably in alternation with the receiving troughs ( 18 ) of the first kind, can be switched off or switched on. Conveyor drum ( 10 ) according to claim 5, characterized in that the switching device ( 22 ) with one or more, preferably rotatable or displaceable, switching channels in the drum body ( 14 ) is trained. Conveyor drum ( 10 ) according to claim 4 or 5, characterized in that covers ( 26 ) for the non-pressurized or to be acted upon receiving troughs ( 16 ) of a type, in particular the covers ( 26 ) on or in the receiving troughs ( 16 ) are arranged or are. Conveyor drum ( 10 ) of the tobacco-processing industry with receiving troughs ( 16 . 18 ; 52 . 54 ) for rod-shaped articles ( 20 ) of the tobacco-processing industry, characterized in that a first type of receiving troughs ( 52 ) on the conveyor drum ( 10 ), the first type of receiving wells ( 52 ) by actuation of an adjusting device ( 50 ) by a second type of receiving wells ( 54 ) is replaced or replaced, each type of receiving well ( 52 . 54 ) to a predetermined diameter of the on the conveyor drum ( 10 ) (article) ( 20 ) is adjusted. Conveyor drum ( 10 ) according to claim 8, characterized in that as an adjusting ( 50 ) formed rotary body ( 50 ) two types of receiving wells ( 52 . 54 ) for the articles ( 20 ) of the tobacco processing industry are formed, wherein in a first position of the rotary body ( 50 ) on the conveyor drum ( 10 ) a first type of receiving wells ( 52 ) for the rod-shaped articles ( 20 ) is activated to receive a corresponding rod-shaped article, and after or by rotation of the rotary body ( 50 ) the first type of receiving wells ( 52 ) is or is placed in a second, passive position and a second type of receiving wells ( 54 ) for rod-shaped articles ( 20 ) is or is activated in a corresponding position. Conveyor drum ( 10 ) according to claim 8 or 9, characterized in that on the as adjustment ( 50 ) formed rotary body ( 50 ) on its outside two different types of receiving wells ( 52 . 54 ), the different receiving cavities ( 52 . 54 ) Opposite each other on the rotary body ( 50 ) are formed and by means of a bore ( 56 ) in the rotary body ( 50 ), wherein in particular the rotary body ( 50 ) in an outer fit ( 48 ) of the conveyor drum ( 10 ), in particular a drum body ( 14 ), is introduced or will. Conveyor drum ( 10 ) of the tobacco-processing industry with receiving troughs ( 16 . 18 ; 52 . 54 ) for rod-shaped articles ( 20 ) of the tobacco processing industry or according to one of claims 1 to 4 or 8, characterized in that in the receiving troughs ( 16 . 18 ; 52 . 54 ) of a first type each adapter are or are used, so that receiving wells ( 16 . 18 ; 52 . 54 ) of the second kind are or are. Conveyor drum ( 10 ) according to claim 11, characterized in that the adapter when arranged on the conveyor drum ( 10 ) are adapted to the curvature of the receiving troughs of the first type on the inwardly facing outside and the adapters on the outwardly facing outside have or form a receiving trough of the second type. Conveyor drum ( 10 ) according to one of claims 1 to 12, characterized in that the conveyor drum ( 10 ) has a cylindrical or conical shape. Machine of the tobacco processing industry, in particular filter attachment machine, with at least one conveyor drum ( 10 ) according to one of claims 1 to 13.

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