EP1529449A1 - Apparatus for separating tobacco and air, and arrangement and method for the formation of at least two tobacco rods in a cigarette rod making machine - Google Patents

Abstract

The tobacco/air separator (26) has an inlet structured to receive tobacco carried by transport air flow. A discharge side is coupled to at least two sites to discharge the received tobacco separated from the transport air flow. A tobacco guide wall (33) is movable so that the discharge side consecutively communicates with the at least two sites. Independent claims are also included for the following: (A) a method for assembling at least two tobacco rods from a single tobacco supply; and (B) an arrangement for assembling at least two tobacco rods in an endless rod maker.

Description

The invention relates to a device for separating tobacco and transport air and an arrangement for the construction of at least two tobacco rods in a cigarette rod machine.

The invention further relates to a cigarette rod maker and a Process for the construction of at least two tobacco strands from one single tobacco supply.

DE 101 54 807.9 of the applicant is an arrangement for Construction of at least one tobacco rod in a cigarette rod machine known. This arrangement described there was the Task based, by an optimized structural and fluidic Design of the tobacco feed the positive effect of the fluidized bed distributor still strengthen and stabilize. The Arrangement for building at least one tobacco rod in one Cigarette rod machine is this with to a Saugstrangförderer leading, a tobacco / air layer forming Flow surface to provide conductive supply means, wherein the Feeding means - based on the conveying direction of the tobacco - a an upstream in the flow area dosing have upstream sight. The sight can here preferably a zigzag sifter. Within the scope of the invention the flow surfaces are especially intended for a Tobacco / air layer form.

It is also known from DE 36 19 579 C2, by means of a Tabaksteamachtes to feed a double-strand machine, wherein arranged behind the stowage in Tabakförderrichtung a sifter is. In a device or arrangement according to DE 36 19 579 C2 will tobacco over the entire width of there in, for example Fig. 1 illustrated distributor whose extension in the width is clearly visible in Fig. 3, on the guide surface shown there, called in the context of this invention also flow area is, applied. In a view from the viewing direction III Fig. 2 of this patent is very good the width of the guide surface or Flow surface to be recognized, which is transverse to the direction of movement of the Tobacco over the entire baffle or flow area extends. Both DE 36 19 579 C2 and DE 101 54 807.9 are intended to be incorporated in full in the disclosure of this application be included. The so-called Leitfläche in DE 36 19 579 C2 is called flow area in this application.

In the non-prepublished European patent application with Applicant's application number 03006602.1 is an order and a method by which a possibility is provided, a corresponding cigarette rod machine regarding the processing speed of the tobacco accelerate. This should always be ensured that a even distribution of tobacco in more than one Tobacco strand in terms of fiber length, mixture and variety is ensured. Furthermore, a variant is specified in the the strand formation over the entire width or substantially the entire width of the arrangement is possible, so a very rapid strand formation is feasible. This is mentioned in the European patent application incorporated in full in the The disclosure content of this patent application be added should, solved by an arrangement for the construction of at least two tobacco strands in a cigarette rod maker provided with the following features:

Feeding means for conveying, in particular metered and / or sighted, Tobacco on at least two to at least one each Saugstrangförderer leading flow surfaces, the Supply means comprise at least two storage slots which transversely to Direction of conveyance of Saugstrangförderer arranged one behind the other are. Accordingly, a method for building at least discloses two tobacco strands from a single tobacco stock, wherein at least two storage spaces, in particular directly, with the tobacco from the tobacco reserve are fed, wherein from the at least two storage spaces of tobacco on each flow area is promoted, and then the tobacco at least two Saugstrangförderern is fed, the storage bays transverse to the conveying direction of Saugstrangförderer one behind the other are arranged.

It is compared to this prior art object of the present Invention, from the European patent application with the Application number 03006602.1 known arrangement and the corresponding known methods continue to form such that the arrangement is more compact and, with regard to the The procedure continues to lead to a uniform distribution of the Tobacco in more than one tobacco rod in terms of fiber length, Mixture and variety should be ensured.

This object is achieved by a device for separating of tobacco and transport air with a tobacco guide wall and a Separating element, wherein tobacco in an air flow of the device can be fed and separated from the air flow from the device can be conveyed, wherein the tobacco guide wall at least On the output side of the device is configured so movable to To deliver tobacco in succession to at least two locations. By this measure, it is possible to use another feed, the example in the mentioned European Patent application with the reference numeral 39 is shown in Fig. 1, to dispense without sacrificing quality in strand production suffer. In this way, a corresponding height, the necessary to provide the additional feed, saved.

The delivery of the tobacco to at least two locations is preferably done with a frequency or charging frequency, the larger or preferably substantially larger than the emptying frequency the tobacco loading lock is. By a corresponding designed arrangement with the device according to the invention is provided for a separation of the tobacco. For example The feed frequency can be ten times as large as the feed rate Discharge frequency of the storage shafts or for example only five times as big. The tobacco loading lock is in front of the pre-distributor arranged and receives the usually pneumatically to the cigarette machine promoted Schnitttabak, in the tobacco preparation (Primary) was prepared. Within the scope of the invention The term movable also includes the term movable.

If the tobacco guide wall is convex, the Centrifugal force for separating the tobacco from the air flow or the transport air to be exploited.

Preferably, the tobacco guide wall is at least partially formed pivotable. In a particularly simple embodiment the device according to the invention is a part of the tobacco guide wall designed as a flap. The flap is then only appropriate to pivot to tobacco the different places supply. Preferably, the flap is about a pivot point pivotable. If the tobacco guide wall on the output side of Device is alignable with a guide wall of a lock, is counteracted segregation of the tobacco. A preferred Sluice includes a cellular wheel for the separation of Residual transport air and / or for dosing the tobacco is used.

The object is further achieved by an arrangement for the construction of at least two tobacco rods in a cigarette rod machine dissolved, wherein feeding means for conveying, in particular metered and / or sighted tobacco to at least two, at least each a Saugstrangförderer leading flow surfaces are provided, wherein the supply means at least two Stowages include transversely to the conveying direction of the Saugstrangförderer are arranged one behind the other, with upstream the storage compartments a device according to the invention, as described above, is arranged. An inventive arrangement is saves space, i. realized with a low height. Further is given maximum operational safety, as the tobacco casks can be arranged substantially vertically. Preferably is between the device for separating tobacco and air and the respective stowage in each case a lock to Portioning of tobacco and / or separation of residual transport air intended.

The object is further achieved by an arrangement for the construction of at least two tobacco rods in a cigarette rod machine dissolved, wherein feeding means for conveying, in particular metered and / or sighted tobacco to at least two, at least each a Saugstrangförderer leading flow surfaces are provided, wherein the supply means at least two Storage bays include, with the at least two storage bays one lock each for portioning tobacco and / or separating preceded by transport air, by a single Device for separating tobacco and air supplied with tobacco are.

Also by this arrangement according to the invention is a small Height feasible, with relatively little mechanical elements Find use.

Preferably, the storage bays are alternately supplied with tobacco. A cigarette rod machine according to the invention comprises a device according to the invention, as described above was, and / or an inventive arrangement, such as has been described above.

The object is further achieved by a method for constructing at least two tobacco strands from a single tobacco supply solved, with at least two storage bays with the tobacco the tobacco reserve are fed, with at least two Storage bays of tobacco on each at least one Flow surface is promoted, and the tobacco subsequently at least two Saugstrangförderern is supplied, wherein the Tobacco is conveyed by means of an air flow and of the Air flow before promotion in the storage bays by a Device for separating tobacco and transport air is deposited, the tobacco immediately after the Separating the air flow from the device for Separation of tobacco and transport air the storage bays is alternately supplied.

This is a safe construction of at least two tobacco strands possible, with a uniform distribution of tobacco in the different tobacco strands is feasible. The tobacco is always only fed to a stowage at a specific time and then another stowage. This happens preferably in succession or alternately. If before the Feeding the tobacco to the storage bays and after separation From the air stream of tobacco, first alternately one each Lock is supplied, portioned by the tobacco and / or Remaining transport air is deposited, is even more uniform Strand construction possible. Preferably, one is for each stowage Sluice provided. A particularly preferred embodiment is given if the storage ducts transverse to the conveying direction of the tobacco on the Saugstrangförderern arranged one behind the other are. This is a very uniform tobacco rod formation possible.

In an appropriate procedure, the Storage bays essentially over the entire width of the Arrangement. The width of the arrangement is within the scope of the invention In particular, the entire Aufschauerbreite the tobacco or the entire width across the flow surfaces before these in further Flow areas are divided. In the context of this invention The term "substantially the entire width" also includes the Whole width being naturally not one for tobacco distribution or for Tabakstrangaufbauen provided housing, the order the arrangement is arranged, is not added to the width. The entire width would be in the context of Figure 4 DE 32 09 195 C2 the entire width of the there arranged wall 36 in the sloping guide shaft 31. In other words, the width the effective width of the assembly used for tobacco formation.

If the storage bays are essentially parallel to each other, are particularly uniform tobacco strands can be produced. The storage bays are in the context of the invention, in particular one behind the other arranged. One behind the other means within the scope of the invention in particular arranged transversely to the width. If an operator before the arrangement is and the Saugstrangförderer in the Viewing from left to right (and vice versa) extend the storage bays one behind the other.

If at least one tobacco sifter is provided, the at least a tobacco sifter with respect to the tobacco stream before the Storage bays can be located just before generating the tobacco supply a tobacco screening take place. It is preferable in this case uncovered or incompletely exposed tobacco supply. It is in particular in the context of the invention no Tobacco sifter in the conveying direction of the tobacco behind the storage bays arranged so that uniform tobacco strands are produced can be used without much transport air. Preferably, the tobacco from at least one common Taken from tobacco stock.

If an air extraction in the range of at least two Saugstrangförderer is provided, is a particularly uniform Strand formation possible. The air extraction ensures. for that, the surplus in air, for the tobacco stream on the flow surfaces is intended to suck, in so far as the Saugstrangförderer and any intended Wälzraum itself can not suck off enough air. The air extraction is especially useful if the tobacco with more air to the Saugstrangförderern is promoted as by the Saugstrangförderer is sucked. Preferably, at each of the flow surface opposite channel wall a Air extraction provided, especially in the area of each Suction rod.

A particularly fast and effective transformation of tobacco into Tobacco strands is possible if the at least two flow surfaces are divided into two flow areas, the lead to a respective Saugstrangförderer, so that a total of four Tobacco strands can be produced simultaneously. alternative The conversion of tobacco into tobacco strands may be slower than Conventionally, so that the subsequent processing steps less time critical, without sacrificing productivity to lose.

When tobacco is removable from two tobacco stocks and at least it is possible to deliver two storage bays separately, it is possible at the same time two different tobacco strands with respect to the type of tobacco so that with an arrangement for the construction of at least two tobacco strands in a cigarette rod maker two different cigarette brands can be made. This results in a high variability in cigarette production.

If preferably the at least two storage slots alternately are filled, a segregation of the tobacco is counteracted. In this case, preferably a portionwise filling is done the storage bays, with a plurality of servings necessary is to provide a full filling. In a preferential way Embodiment of the method according to the invention the frequency of filling the storage bays greater, in particular much larger than the emptying frequency of the tobacco feed lock.

If the filling of the storage bays and the promotion to the each at least one flow area over substantially the entire width of a distribution unit for distributing tobacco At least two Saugstrangförderer is provided, is a special effective and rapid formation of tobacco rods possible.

Preferably, the tobacco is previously sighted so as to form the tobacco strands use as little air as possible must find. In a particularly preferred embodiment of the Invention are three, four or more tobacco strands in particular generated simultaneously. When twice as many tobacco cords are produced will be provided as storage bays, in particular the flow surfaces with respect to their width in two equal divided wide flow areas, as in DE 36 19 579 C2 and EP 1 174 046 A2, which are fully incorporated in the disclosure to be included in this application, a to achieve even distribution of tobacco fibers and tobacco rod, where not only two tobacco strands are possible, but also four or more.

If between the tobacco supply and the at least two storage bays a separation of transport air and tobacco takes place, can in the subsequent formation of the tobacco strands with as possible little air extraction a good result in terms of uniform formation of the tobacco strands can be achieved.

Preferably, the tobacco is added in portions to the storage compartments. Further preferably, in the area of the flow surfaces and / or in the field of Saugstrangförderer particular more Air sucked.

In the following, the invention will be described with reference to exemplary embodiments with reference to the drawings without limitation of general idea of the invention described, with respect to all in the text not explained in detail according to the invention expressly referred to the drawings.

Fig.1

eine schematische Darstellung einer erfindungsgemäßen Anordnung gemäß der europäischen Patentanmeldung 03006602.1,

Fig. 2

eine schematische Darstellung einer weiteren Anordnung gemäß der europäischen Patentanmeldung 03006602.1.

Fig. 3

eine schematische Darstellung einer erfindungsgemäßen Vorrichtung zum Abscheiden von Tabak und Transportluft bzw. einen schematischen Ausschnitt aus einer erfindungsgemäßen Anordnung zum Aufbau von wenigstens zwei Tabaksträngen in einer Zigarettenstrangmaschine.

Show it:

Fig.1

a schematic representation of an arrangement according to the invention according to European Patent Application 03006602.1,

Fig. 2

a schematic representation of another arrangement according to European Patent Application 03006602.1.

Fig. 3

a schematic representation of a device according to the invention for the separation of tobacco and transport air or a schematic section of an inventive arrangement for the construction of at least two tobacco strands in a cigarette rod machine.

Fig. 1 shows an arrangement for the construction of two tobacco strands in a cigarette rod machine, according to the European patent application 03006602.1

From a pneumatic tobacco feed lock 11 is tobacco a pre-distributor 10, which is connected to the computing rollers 12 and 13 is provided. The pre-distributor 10 opens into a tobacco reservoir 16, the discharge side is associated with a steep conveyor 17, the with a tobacco combing paddle roller 18 and with a tobacco in a downwardly leading feed chute 19 knocking out separating roller 21 interacts. The feed chute 19 is through a boundary plate 20 limited. The feed chute 19 opens laterally in a section of a visual means in the form of a vertical arranged zig-zag sifter 22.

The zigzag sifter 22 is part of a cross flow fan 23 operated air circulation system 24. Relative to the flow direction of the circulating air system 24 is downstream of the cross-flow fan 23 a Umluftkrümmer provided in the region of its outer radius in a bypass branching off from the air circulation system 24 and in Range of its inner radius in a surplus flow channel in which a tobacco surplus transport means in the form of a Feed screw and a cellular wheel opens. These details are not shown in FIG. 1 but, for example, in FIG. 1 or FIG. 4 DE 101 54 807.9. It is in this respect reference taken to the just-mentioned patent application.

In the recirculation system 24 of the classifier circuit is also a Coanda separator trained tobacco / air separator 26 integrated, the two sides of a Abscheidekante 36 on the one hand with the Suction side of the cross-flow fan 23 is connected, and on the other hand in one above two storage bays 40, 40 'arranged Rotary valve 37 opens.

The substantially vertically arranged storage spaces 40, 40 ' end with their Schachtauslässen that in the embodiment 3 as a vibrating shaft outlets with corresponding vibration elements 60, 60 'are formed, at the lower end respectively above a cooperating with a rollover roller 41, 41 ' Removal roller 42, 42 '. Between the storage bays 40, 40 'and the rotary valve 37 is still an impeller 38 for portioning of the tobacco provided and a distribution element 39, by means of which alternately the two storage bays 40, 40 'with tobacco in portions can be filled.

The rotary valve 37 serves to separate residual Transport air from the air circulation system 24 from the tobacco, of the Tabakabscheideraum 81 above the rotary valve 37 to this is encouraged. In other embodiments, not are shown as a lock not two locks in the form of Rotary valve 37 and the impeller 38 is provided, but only one lock. In the case of Fig. 2 is a lock in the form an impeller 37 or 37 'is provided. It can also be one be provided individual lock, which the functions of the Rotary valve 37 and the impeller 38 include, namely separating air and tobacco and portioning tobacco.

Below the removal rollers 42, 42 'in each case a guide channel visible, which is bounded by a guide surface, in each case single-lane flow surface 44, 44 'of a flow channel passes. The flow channels are initially superimposed. By means of Blasluftzuführungen 43, 43 'is on the flow surfaces 44, 44 'a snug, tobacco-transporting air flow generated. The upwardly leading flow surfaces 44, 44 'open below a strand building unit of a double-strand machine, FIG. 1 schematically shows two suction-strand conveyors 50, 50 ' and in Fig. 2 schematically a strand building unit 51, the corresponding number of Saugstrangförderern 50, 50 ' having. The Saugstrangförderer are according to DE 36 19 579 C2 built. The upward-striving tobacco filling streams pass as shown in FIG. 1 to two parallel arranged side by side Saugstrangförderern 50, 50 ', each of a basically a Tobacco channel running along a perforated floor permeable Conveyor belt consist, the back under the suction effect a vacuum chamber is. The excess transport air is sucked by means of Luftabsaugelementen 30, 30 '. The transport air itself is by means of a schematically indicated air flow 43 or 43 'in the direction of the flow surfaces 44 and 44' brought.

The tobacco / air separator 26 is arranged around a tubular body 48.

The zig-zag sifter 22 is equipped with a screw 47, with who removes the segregated Sichtgut, such as tobacco ribs becomes. There may be other elements, such as a Nachsichter provided be, which are described in DE 101 54 807.9.

The mode of action of building a fleece-like, in one Strangbildungsbahn convicted tobacco stream preparatory, in the distributor of a cigarette rod machine integrated classifier system is as follows:

Tobacco passes through the loading lock 11 and the pre-distributor 10 in the tobacco reservoir 16 to the steep conveyor 17, of the the Sichtersystem charged with a continuous stream of tobacco is by the equipped with Steepförderkämmen steep conveyor 17th Tobacco combs out of the tobacco reservoir 16. To get a uniform Occupancy of the steep conveyor 17 to reach, is excess Tobacco struck by the paddle roller 18. By monitoring the speed of the steep conveyor 17 can at reduced Rated speed a machine stop are triggered, for. To prevent damage by foreign bodies.

The tobacco lying on the steep conveyor 17 enters the sphere of action the separating roller 21, which passes through the tobacco coarse pre-singling accelerates into the zigzag sifter 22 transferred and their speed in terms of a compromise Tobacco destruction and necessary separation is set, preferably in a range between 800 and 900 revolutions per minute.

Due to the characteristic shape of the zigzag sifter 22 on the one hand, light tobacco fibers of the tobacco stream upwards transported and on the other hand, the tobacco stream in a transverse to Mainstream extending movement offset. Because the flow profile is inhomogeneous, resulting in areas with high and low air velocity, which the tobacco fibers in a circular motion, so-called vortex rolls, put. In this way, the ribs contained in the tobacco stream removed and moved down by gravity. light Tobacco fibers are repeated step by step in the zigzag sifter 22 transported up. This process takes place in each as a Zacke trained visual stage instead.

The precipitated from the zig-zag sifter 22 ribbed material can by a Nachsichter with the help of branched off from the air circulation system Viewing air to be blown, which still on the ribs adhering lighter tobacco particles transported back into the main air flow become. The tobacco ribs are then by means of a Sluice discharged in a known manner, and this particular Reference is made to DE 101 54 807.9.

The sighted tobacco stream enters the tobacco / air separator 26, in which the separation of tobacco and air by the centrifugal force and the Coanda effect occurs, with the tobacco fibers by the centrifugal force on the outer geometry in the form of a curved Outside of the separator 26 are moved along and the air due to the Coanda effect to the inner radius the geometry in the form of a cylindrical surface of a tubular body 48 invests. At the Abscheidekante 36, the final separation takes place of air and tobacco, the air separated from the tobacco to the cross-flow fan 23 is fed again, which is a uniform Flow profile or across the width (perpendicular to the drawing plane) the distributor has a homogeneous velocity distribution.

The tobacco separated in the tobacco / air separator 26 is replaced by the Rotary valve 37 is discharged from the visual system and passes via an impeller 38 for positioning the quantities of tobacco two storage spaces 40, 40 ', wherein in the illustrated in Fig. 1 Position of the distributor element 39, the tobacco portion in Fig. 1 in the right stowage bay 40 'is promoted. In the dashed line shown Position of the distributor element 39 enters tobacco in the Stowage 40 shown on the left. In the arrangement itself are the Storage bays 40 and 40 'are arranged one behind the other and extend extending across the entire width of the array, perpendicular to the plane of the drawing lies.

From the storage spaces 40, 40 'of the tobacco by means of the removal rollers 42, 42 'and the racket rollers 41, 41' in finely isolated Form over a guide surface on two formed as nozzle troughs Flow surfaces 44, 44 'transferred. Appropriate Blasluftzuführungen are represented by the characters 43 and 43 ', wherein additional Blasluftzuführungen, such as. In DE 101 54 807.9 or EP 1 174 046 A2 described, very good use can find an excellent singling of tobacco fibers to achieve.

It will be in the form of a lightweight while maintaining an ideal pressure Negative pressure near 0 mb in a known manner a tight adjacent tobacco fluidized bed flow to strand assembly 51 or as shown in Fig. 1 to the Saugstrangförderern 50, 50 ' generated here as well over the entire width of the arrangement a tobacco fluidized bed flow is achieved. They are preferably also control units for setting and maintaining optimal Flow conditions and pressure conditions provided, wherein in particular in Fig. 1 Luftabsaugelemente 30, 30 'just before the Saugstrangförderern 50, 50 'are arranged to excess To suck air.

The Saugstrangförderer promote tobacco, which is not shown in Direction 91, ie in the drawing plane of Figs. 1, 2 and 3.

By building tobacco strands across the entire width of the inventive arrangement can be a very homogeneous and very rapid tobacco rod formation happen. For this purpose are preferably Two storage bays used across the entire width the arrangement are formed so that a uniform and rapid strand formation is possible.

Fig. 2 shows a schematic representation of a particularly preferred Arrangement according to EP 03006602.1. The difference, for example to Fig. 1 is that tobacco from two stocks 80th and 80 'is separately fed to the storage bays 40 and 40'. hereby There is the advantage that on a cigarette rod machine or in an arrangement of the type according to the invention different Cigarette brands or cigarette rods from different Tobacco can be made. In the embodiment gem. Fig. 2 are each two strands different Tobaccos. The features of the device for feeding Tobacco from the Tobacco Feeder 11 or 11 ' and the pre-distributor 10 or 10 'to the storage spaces 40 and 40' corresponds to the features of Fig. 1, wherein with respect to the second Device for conveying and pre-distributing tobacco from FIG. 2 the respective reference numbers are indicated by a dash. It will in this regard, reference is made in full to the description of FIG. 1.

The division of the flow surfaces 44 and 44 'on the flow surfaces 441, 441 ', 442 and 442' is known per se. Now, however, four tobacco strands can be produced. A Distribution of the tobacco streams from one flow area to two Flow surfaces is, for example, from DE 36 19 579 C2, DE 101 54 807.9 and EP 1 174 046 A2. By the division the tobacco streams from the guide surfaces 44, 44 'on the guide surfaces 441, 442 and 441 ', 442' become four tobacco strands built up.

The flow surfaces 44 and 44 'are preferably substantially arranged in parallel in the embodiments.

3 shows a device 26 according to the invention for depositing of tobacco and transport air or a schematic section from an arrangement according to the invention for the construction of at least two tobacco rods in a cigarette rod machine.

The structure of the arrangement is upstream of the Tobacco conveying direction similar to the structure in Fig. 1, for example. Tobacco is through a classifier 22 by means of an air flow 25, the a transport air flow is conveyed to a tobacco / air separator 26, which is the device according to the invention for Depositing tobacco and transport air represents. The tobacco / air separator 26 includes a tobacco guide wall 53, which the Outside boundary wall of the tobacco / air separator represents. On the output side of the tobacco / air separator is a flap 71st provided, which is shown in Fig. 3 in two positions, namely in the solid line indicated by the reference numeral 71 is shown, and in the dotted line the reference numeral 71 '. The flap 71 and 71 'is articulated about an axis of rotation 73 and according pivotable in both positions 71 and 71 '. In the Position, which is represented by the flap 71, the flap is aligned 71 with a guide wall 33 of a feed hopper 32 to the Rotary valve 37. In this position, the flap 71 reaches the Tobacco by the centrifugal force to the rotary valve 37th If a corresponding filling of the rotary valve 37 done is pivoted, the flap 71 in the position 71 ', whereby the Flap 71 'in the guide wall 33' of the feed hopper 32 'is aligned, so that tobacco is supplied to the rotary valve 37 '. The Rotary valve 37 or 37 'is used for separating residual Transport air from the tobacco and can also also for Portioning of tobacco in the stowage 40 and 40 'serve.

The storage bays 40 and 40 'are with vibration elements 60 and 60 'provided. From the storage bays 40 and 40 'tobacco is by means of Removal rollers 42 and 42 'taken. The others Procedure or the other features correspond to those of Fig. 1 and Fig. 2.

The advantage of the device according to the invention or the invention Arrangement is compared to Fig. 1 a smaller one Height. Furthermore, only one flap is required. It is also in the Compared to Fig. 1 or Fig. 2 all tobacco lines only completely arranged vertically, resulting in higher reliability leads.

Compared to Fig. 2 also results in a lower height, there only a sifter and a recirculation system must be used to supply tobacco to two manholes. Then it is possible, the combed out of the respective manholes Tobacco in each chute to transfer a tobacco rod or ever Chute two tobacco strands, as shown in Fig. 2. Of the Tobacco is alternately from the flap 71 and 71 ' Rotary valves 37 and 37 'supplied. The rotary valves 37 and 37 'may have a common drive.

LIST OF REFERENCE NUMBERS

10, 10 '

preliminary distributor

11, 11 '

Tobacco load lock

12, 12 '

computing roller

13, 13 '

computing roller

16, 16 '

tobacco reservoir

17, 17 '

vertical conveyor

18, 18 '

paddle roller

19, 19 '

feed chute

20, 20 '

limiting sheet

21, 21 '

separating roller

22, 22 '

Zigzag classifier

23, 23 '

Cross-flow fan

24

air circulation system

25

airflow

26, 26 '

Tobacco / air separator

30, 30 '

Luftabsaugelement

32, 32 '

feed hopper

33, 33 '

guide wall

36

cutting edge

37, 37 '

rotary

38

impeller

39

distributor

40, 40 '

accumulating shaft

41, 41 '

picker roller

42, 42 '

out roller

43, 43 '

airflow

44, 44 '

flow area

441, 441 ', 442, 442'

flow area

47

slug

48

pipe body

50, 50 '

suction rod

51

Rod assembly unit

53

Tobacco guide wall

60, 60 '

vibrating element

71, 71 '

flap

73

axis of rotation

80, 80 '

tobacco stock

81, 81 '

Tabakabscheideraum

91

conveying direction

Claims (14)

Device for separating tobacco and transport air with a tobacco guide wall (53) and a separating element (36), wherein tobacco in an air stream (24, 25) can be fed to the device and can be removed from the device separately from the air flow (24, 25), characterized in that the tobacco guide wall (53) at least on the output side of the device is designed to be movable so as to deliver tobacco successively at at least two locations (32, 32 ', 37, 37'). Apparatus according to claim 1, characterized in that the tobacco guide wall (53) is convex. Apparatus according to claim 1 or claim 2, characterized in that the tobacco guide wall (53) is configured at least partially pivotable. Apparatus according to claim 3, characterized in that a part of the tobacco guide wall (53) as a flap (71, 71 ') is formed. Apparatus according to claim 3 and / or claim 4, characterized in that the tobacco guide wall (53) on the output side of the device with a guide wall (33, 33 ') of a lock (32, 32', 37, 37 ') can be aligned. Arrangement for the construction of at least two tobacco strands in a cigarette rod making machine, wherein supply means (37, 37 ', 38, 39, 40, 40', 41, 41 ', 42, 42') for conveying, in particular metered and / or sighted tobacco on at least two flow surfaces (44, 44 ', 441, 441', 442, 442 ') leading to at least one suction strand conveyor (50, 50') are provided, wherein the feed means (37 - 42 ') at least two storage spaces (40, 40 '), which are arranged transversely to the conveying direction (51) of the Saugstrangförderer (50, 50', 51) one behind the other, characterized in that upstream of the storage bays (40, 40 ') a device (26, 26') after one or more of claims 1 to 5 is arranged. Arrangement according to claim 6, characterized in that between the device (26, 26 ') for separating tobacco and air and the respective storage shaft (40, 40') each have a lock (32, 32 ', 37, 37') for portioning and / or deposition of residual transport air of tobacco is provided. Arrangement for constructing at least two tobacco strands in a cigarette rod making machine, wherein feeding means (37-42 ') for conveying tobacco, in particular metered and / or sifted tobacco, to flow surfaces (44, 44', respectively) leading to at least one suction strand conveyor (50, 50 ') 441, 441 ', 442, 442') are provided, wherein the supply means (37 - 42 ') at least two storage spaces (40, 40') comprise, characterized in that the at least two storage compartments (40, 40 ') each have a lock (32, 32 ', 37, 37') is arranged upstream of the portioning and / or separating of residual transport air of tobacco, wherein the locks (32, 32 ', 37, 37') of a single device (26, 26 ') for depositing Tobacco and air are supplied with tobacco. Arrangement according to one or more of claims 6 to 8, characterized in that the storage spaces (40, 40 ') can be supplied alternately with tobacco. Cigarette rod machine with a device (26, 26 ') after one or more of claims 1 to 5 and / or a Arrangement according to one or more of claims 6 to 9. Method for constructing at least two tobacco strands from a single tobacco supply (80, 80 ') wherein at least two storage spaces (40, 40') are fed with the tobacco from the tobacco supply (80, 80 '), wherein from the at least two storage spaces (40 , 40 ') the tobacco is conveyed to at least one flow surface (44, 44', 441, 441 ', 442, 442'), and the tobacco is then fed to at least two suction belt conveyors (50, 50 ', 51), wherein the tobacco is conveyed by means of an air flow (24, 25) and is separated from the air stream (24, 25) by a device (26, 26 ') for separating tobacco and transport air before being conveyed into the storage chutes (40, 40') , characterized in that the tobacco immediately after the separation of the air flow (24, 25) from the device (26, 26 ') the storage spaces (40, 40') is alternately supplied. A method according to claim 11, characterized in that prior to the feeding of the tobacco to the storage bays (40, 40 ') and after separation from the air flow (24, 25) of the tobacco first alternately a respective sluice (32, 32', 37, 37 ') is supplied, by means of which the tobacco is portioned and / or residual transport air is deposited. A method according to claim 12, characterized in that a lock (32, 32 ', 37, 37') is provided for each storage shaft (40, 40 '). Method according to one or more of claims 11 to 13, characterized in that the storage spaces (40, 40 ') transversely to the conveying direction (91) of the tobacco on the Saugstrangförderern (50, 50', 51) are arranged one behind the other.

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