EP1905315B1 - Suction line conveyor and method for manufacturing a strand for the tobacco industry - Google Patents
Suction line conveyor and method for manufacturing a strand for the tobacco industry Download PDFInfo
- Publication number
- EP1905315B1 EP1905315B1 EP07018547A EP07018547A EP1905315B1 EP 1905315 B1 EP1905315 B1 EP 1905315B1 EP 07018547 A EP07018547 A EP 07018547A EP 07018547 A EP07018547 A EP 07018547A EP 1905315 B1 EP1905315 B1 EP 1905315B1
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- EP
- European Patent Office
- Prior art keywords
- conveyor belt
- conveyor
- cross
- sectional contour
- strand
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Not-in-force
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Classifications
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- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24C—MACHINES FOR MAKING CIGARS OR CIGARETTES
- A24C5/00—Making cigarettes; Making tipping materials for, or attaching filters or mouthpieces to, cigars or cigarettes
- A24C5/14—Machines of the continuous-rod type
- A24C5/18—Forming the rod
- A24C5/1807—Forming the rod with compressing means, e.g. garniture
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- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24C—MACHINES FOR MAKING CIGARS OR CIGARETTES
- A24C5/00—Making cigarettes; Making tipping materials for, or attaching filters or mouthpieces to, cigars or cigarettes
- A24C5/14—Machines of the continuous-rod type
- A24C5/18—Forming the rod
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24C—MACHINES FOR MAKING CIGARS OR CIGARETTES
- A24C5/00—Making cigarettes; Making tipping materials for, or attaching filters or mouthpieces to, cigars or cigarettes
- A24C5/14—Machines of the continuous-rod type
- A24C5/18—Forming the rod
- A24C5/1857—Belt construction or driving means
Definitions
- the invention relates to a Saugstrangadder the tobacco processing industry with a fiber channel in which a conveyor belt is conveyed in a conveying direction, wherein a conveyor belt leading guide device is provided which defines a cross-sectional contour of the conveyor belt, wherein the conveyor belt in the region of a Faseraufschauer Schls the fiber channel a curved Has cross-sectional contour.
- the invention further relates to a method for producing a strand of the tobacco-processing industry, in particular a filter or a tobacco rod.
- the apparatus for producing a tobacco rod for the production of a cigarette rod has a rotating strand conveyor, which passes through a strand construction zone, wherein the strand conveyor in the Strand building zone for strand formation with fibers is chargeable.
- the strand conveyor has a discharge end for discharging the fiber strand.
- the strand conveyor is assigned an excess removal device.
- means are provided for producing a cross-sectional contour of the fiber strand corresponding at least along a peripheral section of the fiber strand of at least part of the strand contour of the finished strand.
- the tobacco band used there is guided in a tobacco channel and assigned to the rear of a vacuum chamber which is connected to a vacuum source and causes a suction through an air-permeable channel bottom and through the air-permeable tobacco band.
- tobacco fibers are aufauert on the tobacco band and held by the induced draft on the tobacco band.
- the tobacco band has a cross-sectional contour which corresponds at least approximately to a section of the cross-sectional contour of a cigarette rod produced.
- a format device which has an inlet finger, which is adapted to the cross-sectional contour of the tobacco band and ensures that the preformed tobacco rod is introduced into the subsequent format.
- this device has the disadvantage that the manufacturing accuracy of the curved in the cross-sectional contour inlet finger must be extremely high.
- only a relatively short service life is possible because a relatively high wear of the format strip and the inlet finger in the separation area or effective range of the inlet finger with the format tape can not be avoided.
- Object of the present invention is to provide a Saugstrangier and a method for producing a fiber strand of the tobacco-processing industry, by means of which are made possible in a preformed by a Saugstrang employer fiber strand long service life.
- the straight cross-sectional contour is preferred, the production of the inlet finger is much easier and possible are the problems of the prior art with the in the cross-sectional contour curved inlet fingers, in particular a curved leading edge of the inlet finger, not given anymore. As a result, less wear occurs in the effective region of the inlet finger on the conveyor belt, so that longer service lives can be achieved.
- the lower curvature is to be understood in the context of the invention in comparison to the curvature in Faseraufschauer Scheme the fiber channel.
- the cross-sectional contour of the conveyor belt is curved transversely to the conveying direction of the conveyor belt or straight.
- the term conveyor belt also includes the term suction belt.
- the cross-sectional contour is curved in a first region of the Saugstrangenseers only at the edges of the conveyor belt.
- the first region of the suction strand conveyor is formed in the conveying direction of the conveyor belt at the beginning of the Faseretzschauer Hochs.
- the cross-sectional contour of the conveyor belt is preferably completely curved in a second region of the suction belt conveyor.
- the second region is a region of the fiber waking region, for example at least two-thirds of the fiber waving region, with two-thirds of the fiber waving region comprising the downstream part of the fiber waving region.
- the curvature forms a partial circle or a partial ellipse. In this case, it is possible to impose on the fiber strand a type of preforming which may result in cylindrically round or elliptical cigarettes or filter strands.
- the Saugstrang adapter acts in the separation region of the fiber strand with an inlet finger of a format device, such that the inlet finger separates a strand formed on the conveyor belt from the conveyor belt, wherein the inlet finger is formed in the separation region transversely to the conveying direction of the Saugstrangdeciers at least partially straight.
- the detachment takes place here by a cooperation of the centrifugal force and the inertia of the fibers with a shutdown or termination of the application of negative pressure and a channeling or forwarding of the fibers through the inlet finger.
- the inlet finger then has a straight edge, which lies on the side of the inlet finger upstream of the conveying direction of the conveyor belt and is preferably arranged substantially perpendicular to the conveying direction and substantially parallel to the cross-sectional contour of the conveyor belt at this point.
- the edge of the inlet finger or the inlet finger transversely to the conveying direction of the conveyor belt is at least as wide as the conveyor belt, so that all adhering to the conveyor belt fibers can be efficiently detached.
- a rod making machine of the tobacco-processing industry is provided with an above-described suction-strand conveyor according to the invention or described as preferred or a combination according to the invention which has been described above.
- strands of the tobacco-processing industry in particular filter or tobacco strands, can be produced efficiently and with long service life.
- the filter off Fibers such as monomer fibers or bicomponent fibers with or without additives such as granules are produced by the round molding or curved preforming in the strand building area by the strong pressing due to the negative pressure in this area a previously common square shape, which may be in the finished filter in the prior art still to be found, avoided.
- the cross-sectional contour changes from curved to less curved or straight in the conveying direction at least in sections continuously.
- the curvature forms a partial circle or a partial ellipse.
- Fig. 1 shows a schematic partial sectional view of a Saugstrang multipliers invention 1.
- the Saugstrang banker 1 is shown in a side view.
- the Saugstrang banker 1 is part of a cigarette rod or filter rod machine of the tobacco processing industry.
- an air-permeable suction belt 2 is provided, for example a perforated belt or an air-permeable fabric belt, which rotates about a front and a rear deflection roller 3a and 3b and about guide rollers 4.
- the lower run 2a of the suction belt 2 is guided in a fiber channel 6 partially with corresponding to the desired contour of the finished strand curved air-permeable bottom.
- the fiber channel 6 is rectilinear in a guide body 8.
- the guide body 8 is in section in the FIGS. 2a to 2d shown schematically.
- the guide body 8 may be integrally but preferably in several pieces, for example according to the EP 1 281 329 A2 .
- Sequences or individual elements have a surface to the suction belt or the fiber channel, which may have a corresponding desired shape to which the suction belt conforms, so that a cross-sectional contour of the suction belt according to the invention results, which substantially corresponds to the contour of the surface of the guide body 8 ,
- the guided in the fiber channel 6 suction belt 2 is the rear side associated with a vacuum chamber 9, which is connected to a vacuum source 11 and through the air-permeable channel bottom and through the air-permeable suction belt 2 causes a suction.
- the suction belt 2 runs in the direction of the arrow 12.
- the mouth of a conveyor shaft 13 for conveying fibers or a mixture of fibers and other constituents of a tobacco or filter strand through which loose or scattered fibers are fed from a distributor, not shown, in the direction of the arrows 14 to the suction belt 2 defines a strand construction zone Z, in which the fiber strand 16 is aufauert to its full height.
- the production well 13 may be the end of a fluid bed conveyor.
- the bottom of the fiber channel 6 is partially curved in a U-shape, namely in particular in the area of the strand construction zone Z, so that the lower strand 2a of the suction belt 2 assumes the desired contour of the finished filter strand.
- the negative pressure chamber 9 extends over almost the entire length of the fiber channel 6 and is assigned to at least a portion of the suction belt 2 transversely to the conveying direction of the suction belt 2.
- the vacuum chamber 9 is not quite as far as the suction belt 2 is wide.
- the suction channel or the vacuum chamber 9 in the width or transverse to the conveying direction of the suction belt 2 covers the complete suction belt.
- the air-permeable bottom 7 of the guide body is provided with Saug Kunststoffschlitzen or openings.
- the floor is perforated, for example. It may also be in accordance with the DE 36 27 057 A1 be provided to provide a plurality of vacuum chambers, for example, apply side strip of the suction belt separated from the central strip with suction, wherein the negative pressure can be controlled according to specifiable.
- an excess removal device 19 Downstream of the strand building zone Z, an excess removal device 19 is arranged which removes excess tobacco 16a from the tobacco rod 16.
- the excess removal device 19 is also referred to as a trimmer and comprises, for example, one or two circular blades 28, which are designed to rotate and whose cutting circuits are in contact with the excess removal in the strand region.
- the circular blades 28 are formed or arranged so that they give the fiber strand in the excess decrease at least a portion of the desired strand contour of the finished strand at least approximately corresponding cross-sectional contour.
- Corresponding embodiments are in the DE 36 27 057 A1 shown.
- the discharge end 21 of the suction belt 2 and the fiber channel 6 is located above the paper inlet of a format device 22 in which the fiber strand is enveloped by a wrapping material strip 23, for example a cigarette paper strip or a filter paper strip, fed in the direction of arrow 23a.
- An encircling format strip 24 conveys the wrapping material strip 23 and the fiber strand 16 deposited thereon under an inlet finger 26 into the format device 22, wherein the strand contour preformed by the curved bottom 7 of the fiber channel facilitates the strand inlet into the format device and the casing, because lower deformation forces are applied Need to become.
- the fiber strand 16 is advantageously deposited after the excess removal in the inlet region of the format device on a HüllmaterialstMap already formed to a trough, so that the cross-sectional contour, which he received in the excess decrease, is largely retained and the inlet to the format device facilitated by reducing the applied deformation work.
- the vacuum chamber 9 ends above the inlet region of the format device 22. However, this may extend as far as the deflection roller 3a or up to the upstream edge of the inlet finger 26, ie, as far as the detachment region 20.
- the deflection roller 3a can also be designed as a press roll.
- a compression means 33 is shown, which may for example consist of a rotating control disk, not shown, which is rotatably mounted in a cylindrical receptacle, not shown, in the housing 34, and serves to provide compressed portions in the strand. Further explanations of the compression device 33 are also from the DE 36 27 057 A1 refer to.
- FIGS. 2a to 2c show cross-sectional views of the guide body 8 in different sections of Fig. 1
- Fig. 2a shows a sectional view along the section EE.
- This is a section through the beginning of the vacuum chamber 9. It is the air-permeable bottom 7 shown, on which the suction belt 2 hugs, since in the vacuum chamber 9, a corresponding negative pressure prevails.
- the guide body is designed here so that the suction belt 2 is still formed transversely to the conveying direction or in the cross-sectional contour straight. It is also in Fig. 2a the conveying direction 12 indicated.
- Fig. 2b shows a schematic sectional view along the sections AA and DD.
- the air-permeable bottom 7 is already curved, with the sides of the air-permeable bottom, in particular the sides, not by negative pressure are applied, may be more curved.
- the radius of curvature is larger compared to the curvature Fig. 2c .
- a part-circular contour is provided in Fig. 2b and 2c . It then closes in the conveying direction relatively short behind the section, which is represented by AA, a cross-sectional contour, through the Fig. 2c is shown schematically, which is intended to indicate a section along BB or CC.
- an air-permeable bottom 7 is shown in the guide body 8, which is semicircular, resulting in a semi-circular cross-sectional contour of the suction belt 2 results.
- Fig. 2d shows a schematic sectional view along the section FF.
- the guide body 8 with its bottom 7 ' which is no longer permeable to air at this point, formed straight in the cross-sectional contour again.
- fiber strands of tobacco and filter fibers can be produced efficiently.
- the suction belt 2 is less curved than previously and preferably formed straight, whereby an efficient and simplified material transfer is possible. This makes it easier to redirect the suction belt 2.
- the run-in finger 26, which may also be referred to as a scraper is not to be altered in comparison to the functioning technique, thereby creating a less prone geometry.
- the fiber strand is formed round or elliptical immediately after leaving the Saugstrang coupleers in the format device.
- the distance in which the cross-sectional contour of the suction belt 2 is straight is preferably only very short, for example less than 10 cm.
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- Manufacturing Of Cigar And Cigarette Tobacco (AREA)
- Belt Conveyors (AREA)
- Cigarettes, Filters, And Manufacturing Of Filters (AREA)
Abstract
Description
Die Erfindung betrifft einen Saugstrangförderer der Tabak verarbeitenden Industrie mit einem Faserkanal, in dem ein Förderband in einer Förderrichtung förderbar ist, wobei eine das Förderband führende Führungsvorrichtung vorgesehen ist, die eine Querschnittskontur des Förderbandes vorgibt, wobei das Förderband im Bereich eines Faseraufschauerbereichs des Faserkanals eine gekrümmte Querschnittskontur aufweist. Die Erfindung betrifft ferner ein Verfahren zum Herstellen eines Strangs der Tabak verarbeitenden Industrie, insbesondere eines Filter- oder eines Tabakstrangs.The invention relates to a Saugstrangförderer the tobacco processing industry with a fiber channel in which a conveyor belt is conveyed in a conveying direction, wherein a conveyor belt leading guide device is provided which defines a cross-sectional contour of the conveyor belt, wherein the conveyor belt in the region of a Faseraufschauerbereichs the fiber channel a curved Has cross-sectional contour. The invention further relates to a method for producing a strand of the tobacco-processing industry, in particular a filter or a tobacco rod.
Aus der
Im Bereich des Strangförderers sind Mittel zum Erzeugen einer wenigstens entlang eines Umfangsabschnitts des Faserstrangs wenigstens eines Teils der Strangkontur des fertigen Strangs entsprechenden Querschnittskontur des Faserstrangs vorgesehen. Das dort verwendete Tabakband ist in einem Tabakkanal geführt und rückseitig einer Unterdruckkammer zugeordnet, die mit einer Unterdruckquelle verbunden ist und durch einen luftdurchlässigen Kanalboden sowie durch das luftdurchlässige Tabakband einen Saugzug bewirkt. Im Aufschauerbereich bzw. in der Strangaufbauzone werden Tabakfasern auf das Tabakband aufgeschauert und durch den Saugzug am Tabakband gehalten. Das Tabakband weist eine Querschnittskontur auf, die wenigstens angenähert einem Abschnitt der Querschnittskontur eines hergestellten Zigarettenstrangs entspricht. Zum Ablösen des Tabakstrangs von dem Tabakband ist stromabwärts des Abgabeendes des Tabakbandes bzw. des Tabakkanals eine Formateinrichtung vorgesehen, die einen Einlauffinger aufweist, der der Querschnittskontur des Tabakbandes angepasst ist und dafür sorgt, dass der vorgeformt gebildete Tabakstrang in das sich anschließende Format eingebracht wird.In the region of the strand conveyor, means are provided for producing a cross-sectional contour of the fiber strand corresponding at least along a peripheral section of the fiber strand of at least part of the strand contour of the finished strand. The tobacco band used there is guided in a tobacco channel and assigned to the rear of a vacuum chamber which is connected to a vacuum source and causes a suction through an air-permeable channel bottom and through the air-permeable tobacco band. In the Aufschauerbereich or in the strand building zone tobacco fibers are aufauert on the tobacco band and held by the induced draft on the tobacco band. The tobacco band has a cross-sectional contour which corresponds at least approximately to a section of the cross-sectional contour of a cigarette rod produced. To detach the tobacco rod from the tobacco band downstream of the discharge end of the tobacco band or the tobacco channel a format device is provided which has an inlet finger, which is adapted to the cross-sectional contour of the tobacco band and ensures that the preformed tobacco rod is introduced into the subsequent format.
Diese Vorrichtung hat allerdings den Nachteil, dass die Fertigungsgenauigkeit des in der Querschnittskontur gekrümmten Einlauffingers extrem hoch sein muss. Außerdem ist nur eine relativ kurze Standzeit möglich, da ein relativ hoher Verschleiß des Formatbandes und des Einlauffingers im Ablösebereich bzw. Wirkbereich des Einlauffingers mit dem Formatband nicht vermieden werden kann.However, this device has the disadvantage that the manufacturing accuracy of the curved in the cross-sectional contour inlet finger must be extremely high. In addition, only a relatively short service life is possible because a relatively high wear of the format strip and the inlet finger in the separation area or effective range of the inlet finger with the format tape can not be avoided.
Aus
Aufgabe der vorliegenden Erfindung ist es, einen Saugstrangförderer und ein Verfahren zur Herstellung eines Faserstrangs der Tabak verarbeitenden Industrie anzugeben, mittels derer bei durch einen Saugstrangförderer vorgeformten Faserstrang hohe Standzeiten ermöglicht sind.Object of the present invention is to provide a Saugstrangförderer and a method for producing a fiber strand of the tobacco-processing industry, by means of which are made possible in a preformed by a Saugstrangförderer fiber strand long service life.
Gelöst wird diese Aufgabe durch einen Saugstrangförderer der Tabak verarbeitenden Industrie mit einem Faserkanal, in dem ein Förderband in einer Förderrichtung förderbar ist, wobei eine das Förderband führende Führungsvorrichtung vorgesehen ist, die eine Querschnittskontur des Förderbandes vorgibt, wobei das Förderband im Bereich eines Faseraufschauerbereichs des Faserkanals eine gekrümmte Querschnittskontur aufweist, der dadurch weitergebildet ist, dass die Querschnittskontur des Förderbands in einem ersten Bereich des Faseraufschauerbereichs des Saugstrangförderers einen größeren Radius als in einem zweiten Bereich des Faseraufschauerbereichs hat, wobei in einem Ablösebereich eines auf oder an dem Förderband bildbaren Strangs eine weniger gekrümmte bis gerade Querschnittskontur des Förderbandes vorgesehen ist.This object is achieved by a Saugstrangförderer the tobacco processing industry with a fiber channel in which a conveyor belt is conveyed in a conveying direction, wherein a conveyor belt leading guide device is provided which defines a cross-sectional contour of the conveyor belt, wherein the conveyor belt in the region of a Faseraufschauerbereichs the fiber channel has a curved cross-sectional contour which is further developed in that the cross-sectional contour of the conveyor belt in a first region of the Faseraufschauerbereichs of Saugstrangförderers has a larger radius than in a second portion of Faseraufschauerbereichs, wherein in a separation region of a trainable on or on the conveyor belt strand a less curved until straight cross-sectional contour of the conveyor belt is provided.
Durch die Maßnahme, dass in einem Ablösebereich eines auf dem Förderband bildbaren Strangs eine weniger gekrümmte bis gerade Querschnittskontur des Förderbandes vorgesehen ist, wobei die gerade Querschnittskontur bevorzugt ist, ist die Fertigung des Einlauffingers sehr viel einfacher möglich und sind die Probleme des Standes der Technik mit dem in der Querschnittskontur gekrümmten Einlauffinger, insbesondere einer gekrümmten Vorderkante des Einlauffingers, nicht mehr gegeben. Hierdurch kommt es im Wirkbereich des Einlauffingers beim Förderband zu weniger Verschleiß, so dass höhere Standzeiten erzielbar sind. Die geringere Krümmung ist im Rahmen der Erfindung im Vergleich zur Krümmung im Faseraufschauerbereich des Faserkanals zu verstehen. Insbesondere ist die Querschnittskontur des Förderbandes quer zur Förderrichtung des Förderbandes gekrümmt bzw. gerade. Im Rahmen der Erfindung umfasst der Begriff Förderband auch den Begriff Saugband.By the measure that a less curved to straight cross-sectional contour of the conveyor belt is provided in a separation region of a trainable on the conveyor strand, the straight cross-sectional contour is preferred, the production of the inlet finger is much easier and possible are the problems of the prior art with the in the cross-sectional contour curved inlet fingers, in particular a curved leading edge of the inlet finger, not given anymore. As a result, less wear occurs in the effective region of the inlet finger on the conveyor belt, so that longer service lives can be achieved. The lower curvature is to be understood in the context of the invention in comparison to the curvature in Faseraufschauerbereich the fiber channel. In particular, the cross-sectional contour of the conveyor belt is curved transversely to the conveying direction of the conveyor belt or straight. In the context of the invention, the term conveyor belt also includes the term suction belt.
Vorzugsweise ist die Querschnittskontur in einem ersten Bereich des Saugstrangförderers nur an den Rändern des Förderbandes gekrümmt. Der erste Bereich des Saugstrangförderers ist in Förderrichtung des Förderbandes am Anfang des Faseraufschauerbereichs ausgebildet.Preferably, the cross-sectional contour is curved in a first region of the Saugstrangförderers only at the edges of the conveyor belt. The first region of the suction strand conveyor is formed in the conveying direction of the conveyor belt at the beginning of the Faseraufschauerbereichs.
Die Querschnittskontur des Förderbands ist vorzugsweise in einem zweiten Bereich des Saugstrangförderers vollständig gekrümmt. Bei dem zweiten Bereich handelt es sich um einen Bereich des Faseraufschauerbereichs, beispielsweise wenigstens zwei Drittel des Faseraufschauerbereichs, wobei bei den zwei Dritteln des Faseraufschauerbereichs der stromabwärtige Teil des Faseraufschauerbereichs umfasst ist. Vorzugsweise bildet die Krümmung einen Teilkreis oder eine Teilellipse. In diesem Fall ist es möglich, dem Faserstrang eine Art einer Vorformgebung aufzuerlegen, die zu im Querschnitt runden oder elliptischen Zigaretten oder Filtersträngen führen können.The cross-sectional contour of the conveyor belt is preferably completely curved in a second region of the suction belt conveyor. The second region is a region of the fiber waking region, for example at least two-thirds of the fiber waving region, with two-thirds of the fiber waving region comprising the downstream part of the fiber waving region. Preferably, the curvature forms a partial circle or a partial ellipse. In this case, it is possible to impose on the fiber strand a type of preforming which may result in cylindrically round or elliptical cigarettes or filter strands.
Es ist ferner bevorzugt, entsprechend den Ausgestaltungen der Figuren 5 und 6 der
Vorzugsweise wirkt der Saugstrangförderer im Ablösebereich des Faserstrangs mit einem Einlauffinger einer Formatvorrichtung zusammen, derart, dass der Einlauffinger einen auf dem Förderband gebildeten Strang von dem Förderband ablöst, wobei der Einlauffinger im Ablösebereich quer zur Förderrichtung des Saugstrangförderers wenigstens teilweise gerade ausgebildet ist.Preferably, the Saugstrangförderer acts in the separation region of the fiber strand with an inlet finger of a format device, such that the inlet finger separates a strand formed on the conveyor belt from the conveyor belt, wherein the inlet finger is formed in the separation region transversely to the conveying direction of the Saugstrangförderers at least partially straight.
Das Ablösen erfolgt hierbei durch ein Zusammenwirken der Fliehkraft und der Massenträgheit der Fasern mit einem Abschalten bzw. Beenden der Beaufschlagung mit Unterdruck sowie einer Kanalisierung bzw. Weiterleitung der Fasern durch den Einlauffinger.The detachment takes place here by a cooperation of the centrifugal force and the inertia of the fibers with a shutdown or termination of the application of negative pressure and a channeling or forwarding of the fibers through the inlet finger.
Vorzugsweise weist der Einlauffinger dann eine gerade Kante auf, die auf der Seite des Einlauffingers stromaufwärts der Förderrichtung des Förderbandes liegt und vorzugsweise im Wesentlichen senkrecht zu der Förderrichtung und im Wesentlichen parallel zur Querschnittskontur des Förderbands an dieser Stelle angeordnet ist.Preferably, the inlet finger then has a straight edge, which lies on the side of the inlet finger upstream of the conveying direction of the conveyor belt and is preferably arranged substantially perpendicular to the conveying direction and substantially parallel to the cross-sectional contour of the conveyor belt at this point.
Vorzugsweise ist die Kante des Einlauffingers bzw. der Einlauffinger quer zur Förderrichtung des Förderbandes mindestens so breit wie das Förderband, so dass sämtliche am Förderband haftenden Fasern effizient abgelöst werden können.Preferably, the edge of the inlet finger or the inlet finger transversely to the conveying direction of the conveyor belt is at least as wide as the conveyor belt, so that all adhering to the conveyor belt fibers can be efficiently detached.
Es ist erfindungsgemäß eine Kombination eines Einlauffingers einer Formatvorrichtung, der im Wirkbereich mit einem Saugstrangförderer quer zur Förderrichtung des Saugstrangförderers eine gerade Kante aufweist mit einem Saugstrangförderer, der vorstehend erfindungsgemäß bzw. als bevorzugte Ausführungsform beschrieben ist, vorgesehen.It is according to the invention a combination of an inlet finger of a format device, which has a straight edge in the active region with a Saugstrangförderer transverse to the conveying direction of the Saugstrangförderers with a Saugstrangförderer, the above according to the invention or described as a preferred embodiment is provided.
Erfindungsgemäß ist eine Strangmaschine der Tabak verarbeitenden Industrie mit einem vorstehenden erfindungsgemäßen bzw. als bevorzugt beschriebenen Saugstrangförderer oder einer erfindungsgemäßen Kombination, die vorstehend beschrieben wurde, versehen.According to the invention, a rod making machine of the tobacco-processing industry is provided with an above-described suction-strand conveyor according to the invention or described as preferred or a combination according to the invention which has been described above.
Die Aufgabe wird ferner durch ein Verfahren zum Herstellen eines Strangs der Tabak verarbeitenden Industrie, insbesondere eines Filter- oder eines Tabakstrangs, mit den folgenden Verfahrensschritten gelöst:
- Aufschauern von Fasern auf ein Förderband eines Saugstrangförderers in einem Faseraufschauerbereich des Saugstrangförderers, wobei das Förderband im Faseraufschauerbereich wenigstens abschnittsweise eine gekrümmte Querschnittskontur aufweist, wobei die Querschnittskontur des Förderbands in einem ersten Bereich des Faseraufschauerbereichs des Saugstrangförderers einen größeren Radius als in einem zweiten Bereich des Faseraufschauerbereichs hat,
- Fördern der aufgeschauerten Fasern in Richtung eines Abgabebereichs, wobei die Querschnittskontur des Förderbandes im Abgabebereich weniger gekrümmt bis gerade ausgebildet ist.
- Churning of fibers onto a conveyor belt of a suction belt conveyor in a Faseraufschauerbereich the Saugstrangförderers, wherein the conveyor belt in Faseraufschauerbereich at least partially has a curved cross-sectional contour, wherein the cross-sectional contour of the conveyor belt in a first region of Faseraufschauerbereichs of Saugstrangförderers has a larger radius than in a second region of Faseraufschauerbereichs .
- Conveying the quenched fibers in the direction of a delivery region, wherein the cross-sectional contour of the conveyor belt in the discharge region is less curved to straight.
Durch das erfindungsgemäße Verfahren können effizient und mit langen Standzeiten Stränge der Tabak verarbeitenden Industrie, insbesondere Filter- oder Tabakstränge, hergestellt werden. Insbesondere beim Herstellen von Filtersträngen, bei denen die Filter aus Fasern, beispielsweise Monomerfasern oder Bikomponentenfasern mit oder ohne Zusätzen wie Granulaten hergestellt werden, wird durch das Rundformen bzw. gekrümmte Vorformen im Strangaufbaubereich durch das starke Verpressen aufgrund des Unterdrucks in diesem Bereich eine bisher übliche eckige Form, die im fertiggestellten Filter im Stand der Technik möglicherweise noch zu finden gewesen ist, vermieden.By the method according to the invention strands of the tobacco-processing industry, in particular filter or tobacco strands, can be produced efficiently and with long service life. In particular, in the manufacture of filter strands, in which the filter off Fibers, such as monomer fibers or bicomponent fibers with or without additives such as granules are produced by the round molding or curved preforming in the strand building area by the strong pressing due to the negative pressure in this area a previously common square shape, which may be in the finished filter in the prior art still to be found, avoided.
Vorzugsweise ändert sich die Querschnittskontur von gekrümmt nach weniger gekrümmt oder gerade in Förderrichtung wenigstens abschnittsweise kontinuierlich.Preferably, the cross-sectional contour changes from curved to less curved or straight in the conveying direction at least in sections continuously.
Vorzugsweise bildet die Krümmung einen Teilkreis oder eine Teilellipse.Preferably, the curvature forms a partial circle or a partial ellipse.
Die Erfindung wird nachstehend ohne Beschränkung des allgemeinen Erfindungsgedankens anhand von Ausführungsbeispielen unter Bezugnahme auf die Zeichnungen beschrieben, wobei bezüglich aller im Text nicht näher erläuterten erfindungsgemäßen Einzelheiten ausdrücklich auf die Zeichnungen verwiesen wird. Es zeigen:
- Fig.1
- eine schematische teilweise Schnittdarstellung eines erfindungsgemäßen Saugstrangförderers in Seitenan- sicht,
- Fig. 2a
- eine schematische Schnittdarstellung entlang des Schnitts E-E der
Fig.1 , - Fig. 2b
- eine schematische Schnittdarstellung entlang der Schnitte A-A und D-D der
Fig. 1 , - Fig. 2c
- eine schematische Schnittdarstellung entlang der Schnitte B-B und C-C der
Fig. 1 und - Fig. 2d
- eine schematische Schnittdarstellung entlang des Schnitts F-F
Fig. 1 .
- Fig.1
- FIG. 2 a schematic partial sectional view of a suction strand conveyor according to the invention in a side view, FIG.
- Fig. 2a
- a schematic sectional view along the section EE of
Fig.1 . - Fig. 2b
- a schematic sectional view along the sections AA and DD of
Fig. 1 . - Fig. 2c
- a schematic sectional view along the sections BB and CC of
Fig. 1 and - Fig. 2d
- a schematic sectional view along the section FF
Fig. 1 ,
In den folgenden Figuren sind jeweils gleiche oder gleichartige Elemente bzw. entsprechende Teile mit denselben Bezugsziffern versehen, sodass von einer entsprechenden erneuten Vorstellung abgesehen wird.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 disregarded.
Der Führungskörper 8 kann einstückig aber bevorzugt mehrstückig sein, beispielsweise gemäß der
Dem im Faserkanal 6 geführten Saugband 2 ist rückseitig eine Unterdruckkammer 9 zugeordnet, die mit einer Unterdruckquelle 11 verbunden ist und durch den luftdurchlässigen Kanalboden sowie durch das luftdurchlässige Saugband 2 einen Saugzug bewirkt. Das Saugband 2 läuft in Richtung des Pfeils 12 um.The guided in the
Die Mündung eines Förderschachts 13 zur Förderung von Fasern bzw. einem Gemisch aus Fasern und weiteren Bestandteilen eines Tabak- oder Filterstrangs, durch den aus einem nicht dargestellten Verteiler aufgelockerte bzw. vereinzelte Fasern in Richtung der Pfeile 14 dem Saugband 2 zugeführt werden, definiert eine Strangaufbauzone Z, in welcher der Faserstrang 16 bis zu seiner vollen Höhe aufgeschauert wird.The mouth of a
Der Förderschacht 13 kann das Ende eines Fließbettförderers sein.The production well 13 may be the end of a fluid bed conveyor.
Die Ausbildung des Faserkanals 6, die Führung des unteren Trums 2a des Saugbandes 2 sowie die Anordnung der den benötigten Saugzug bewirkenden Unterdruckkammer 9 zeigen die
Der Boden des Faserkanals 6 ist abschnittsweise U-förmig gewölbt, nämlich insbesondere im Bereich der Strangaufbauzone Z, sodass auch das untere Trum 2a des Saugbandes 2 die gewünschte Kontur des fertigen Filterstrangs annimmt.The bottom of the
Wie die
Stromabwärts der Strangaufbauzone Z ist eine Überschussabnahmeeinrichtung 19 angeordnet, die überschüssigen Tabak 16a vom Tabakstrang 16 abnimmt. Die Überschussabnahmeeinrichtung 19 wird auch als Trimmer bezeichnet und umfasst beispielsweise ein oder zwei Kreismesser 28, die rotierend ausgebildet sind und deren Schneidkreise sich zur Überschussabnahme im Strangbereich berühren. Vorzugsweise sind die Kreismesser 28 so ausgebildet bzw. angeordnet, dass sie dem Faserstrang bei der Überschussabnahme eine wenigstens einem Teil der gewünschten Strangkontur des fertigen Strangs wenigstens angenähert entsprechende Querschnittskontur geben. Entsprechende Ausführungsformen sind in der
Das Abgabeende 21 des Saugbandes 2 bzw. des Faserkanals 6 liegt oberhalb des Papiereinlaufs einer Formateinrichtung 22, in der der Faserstrang mit einem in Pfeilrichtung 23a zugeführten Hüllmaterialstreifen 23, beispielsweise einem Zigarettenpapierstreifen oder einem Filterpapierstreifen, umhüllt wird. Ein umlaufendes Formatband 24 fördert den Hüllmaterialstreifen 23 und den auf diesem abgelegten Faserstrang 16 unter einen Einlauffinger 26 hindurch in die Formatvorrichtung 22, wobei die durch den gewölbten Boden 7 des Faserkanals vorgeformte Strangkontur den Strangeinlauf in die Formatvorrichtung und die Umhüllung erleichtert, weil geringere Verformungskräfte aufgebracht werden müssen. Das kurzzeitige Vorsehen einer geraden Querschnittskontur des Saugbandes 2 bzw. einer weniger stark gekrümmten Querschnittskontur des Saugbandes 2 im Vergleich zur Querschnittskontur in der Strangaufbauzone Z ist überraschenderweise unproblematisch, da die Fasern in der Schnelligkeit bzw. kurzen Zeit, die sie der geraden bzw. weniger gekrümmten Kontur ausgesetzt sind, kaum der geraden bzw. weniger gekrümmten Kontur folgen, sondern im Wesentlichen in der vorgeformten gekrümmten Kontur verbleiben. Hierbei kann erfindungsgemäß ein üblicher Einlauffinger 26 mit einer in
Der Faserstrang 16 wird nach der Überschussabnahme im Einlaufbereich der Formatvorrichtung vorteilhaft auf einem bereits zu einer Mulde geformten Hüllmaterialstreifen abgelegt, sodass die Querschnittskontur, die er bei der Überschussabnahme erhalten hat, weitgehend erhalten bleibt und den Einlauf in die Formatvorrichtung durch Verringerung der aufzubringenden Verformungsarbeit erleichtert.The
Die Unterdruckkammer 9 endet oberhalb des Einlaufbereichs der Formatvorrichtung 22. Diese kann allerdings bis zur Umlenkrolle 3a bzw. bis zur in Förderrichtung stromaufwärtigen Kante des Einlauffingers 26, also bis zum Ablösebereich 20 sich erstrecken. Die Umlenkrolle 3a kann auch als Pressrolle ausgebildet sein.The
Außerdem ist in
Die
Mit der erfindungsgemäßen Vorrichtung und dem erfindungsgemäßen Verfahren können Faserstränge aus Tabak und Filterfasern effizient hergestellt werden. Im Bereich der Übergabe des Faserstrangs mittels eines Einlauffingers 26 ist das Saugband 2 weniger stark gekrümmt als vorher und vorzugsweise gerade ausgebildet, wodurch eine effiziente und vereinfachte Materialübergabe möglich ist. Hierdurch ist es einfacher möglich, das Saugband 2 umzulenken. Außerdem ist der Einlauffinger 26, der auch als Schaber bezeichnet werden kann, nicht im Vergleich zur funktionierenden Technik zu verändern, wodurch eine wenig anfällige Geometrie entsteht. Der Faserstrang wird sofort nach dem Verlassen des Saugstrangförderers in der Formatvorrichtung rund oder elliptisch geformt. Die Strecke, in der die Querschnittskontur des Saugbandes 2 gerade ist, ist vorzugsweise nur sehr kurz, beispielsweise weniger als 10 cm.With the device according to the invention and the method according to the invention, fiber strands of tobacco and filter fibers can be produced efficiently. In the region of the transfer of the fiber strand by means of an
Trotz der vorübergehenden Formänderung des Saugbandes 2 behält der Faserstrang seine Ursprungsform des Aufschüttens und es entsteht ein runderer Faserstrang als bei einer Aufschüttung auf einem in der Querschnittskontur geraden Saugband. Hierdurch wird eine hohe Qualitätssteigerung in Bezug auf die Rundheit des Faserstrangs erzielt.Despite the temporary change in shape of the
- 11
- Saugstrangförderersuction rod
- 22
- Saugbandsuction belt
- 2a2a
- unteres Trumlower strand
- 3a3a
- Umlenkrolleidler pulley
- 3b3b
- Umlenkrolleidler pulley
- 44
- Führungsrolleleadership
- 66
- Faserkanalfiber channel
- 77
- luftdurchlässiger Bodenair-permeable soil
- 7'7 '
- nicht luftdurchlässiger Bodennon-permeable soil
- 88th
- Führungskörperguide body
- 99
- UnterdruckkammerVacuum chamber
- 1111
- UnterdruckquelleVacuum source
- 1212
- Förderrichtungconveying direction
- 1313
- Förderschachtproduction well
- 1414
- FaserförderrichtungFiber conveying direction
- 1616
- Faserstrangtow
- 16a16a
- überschüssige Fasernexcess fibers
- 1919
- ÜberschussabnahmevorrichtungSurplus removal device
- 2020
- Ablösebereichtransfer area
- 2121
- Abgabeendedelivery end
- 2222
- Formatvorrichtungformat device
- 2323
- Hüllmaterialstreifenwrapping material
- 23a23a
- Pfeilrichtungarrow
- 2424
- Formatbandformat tape
- 2626
- Einlauffingerintake finger
- 2828
- Kreismessercircular blade
- 3333
- Verdichtungsvorrichtungcompacting device
- 3434
- Gehäusecasing
- ZZ
- StrangaufbauzoneStrand construction zone
Claims (8)
- Suction rope conveyor (1) of the tobacco processing industry having a fibre channel (6), in which a conveyor belt (2) may be conveyed in a conveying direction (12), wherein a guide apparatus (8) that guides the conveyor belt (2) is provided, which defines a cross-sectional contour of the conveyor belt (2), wherein the conveyor belt (2) in the region of a fibre-sprinkling zone (Z) of the fibre channel (6) has a curved cross-sectional contour, characterized in that the cross-sectional contour of the conveyor belt (2) has a larger radius in a first region of the fibre-sprinkling zone (Z) of the suction rope conveyor (1) than in a second region of the fibre-sprinkling zone (Z), wherein in a separation zone (20) of a rope (16) that may be formed on or at the conveyor belt (2) a less curved to straight cross-sectional contour of the conveyor belt (2) is provided.
- Suction rope conveyor (1) according to claim 1, characterized in that the curvature forms a partial circle or a partial ellipse.
- Suction rope conveyor (1) according to claim 1 or 2, characterized in that it interacts in the separation zone (20) with a run-in finger (26) of a format apparatus (22) in such a way that the run-in finger (26) separates a rope (16) formed on the conveyor belt (2) from the conveyor belt (2), wherein the run-in finger (26) in the separation zone (20) is of a straight configuration transversely of the conveying direction (12) of the suction rope conveyor (1).
- Combination of a run-in finger (26) of a format apparatus (22), which run-in finger (26) in the region of interaction with a suction rope conveyor (1) has a straight edge transversely of the conveying direction (12) of the suction rope conveyor (1), with a suction rope conveyor (1) according to one of claims 1 to 3.
- Rope machine of the tobacco processing industry having a suction rope conveyor (1) according to one of claims 1 to 4 or a combination according to claim 4.
- Method of manufacturing a rope (16) of the tobacco processing industry, in particular a filter- or tobacco rope, having the following method steps:- sprinkling fibres onto a conveyor belt (2) of a suction rope conveyor (1) in a fibre-sprinkling zone (Z) of the suction rope conveyor (1), wherein the conveyor belt (2) in the fibre-sprinkling zone (Z) has at least in sections a curved cross-sectional contour, wherein the cross-sectional contour of the conveyor belt (2) has a larger radius in a first region of the fibre-sprinkling zone (Z) of the suction rope conveyor (1) than in a second region of the fibre-sprinkling zone (Z),- conveying the sprinkled fibres in the direction (12) of a delivery zone (20), wherein the cross-sectional contour of the conveyor belt (2) in the delivery zone (20) is of a less curved to straight configuration.
- Method according to claim 6, characterized in that the cross-sectional contour at least in sections varies continuously in conveying direction from curved to less curved or straight.
- Method according to one of claims 6 or 7, characterized in that the curvature forms a partial circle or a partial ellipse.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL07018547T PL1905315T3 (en) | 2006-09-26 | 2007-09-21 | Suction line conveyor and method for manufacturing a strand for the tobacco industry |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006045810A DE102006045810B4 (en) | 2006-09-26 | 2006-09-26 | Suction-belt conveyor and method for producing a strand of the tobacco-processing industry |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1905315A1 EP1905315A1 (en) | 2008-04-02 |
EP1905315B1 true EP1905315B1 (en) | 2011-03-09 |
Family
ID=38980617
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP07018547A Not-in-force EP1905315B1 (en) | 2006-09-26 | 2007-09-21 | Suction line conveyor and method for manufacturing a strand for the tobacco industry |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP1905315B1 (en) |
JP (1) | JP5297618B2 (en) |
CN (1) | CN101152020B (en) |
AT (1) | ATE500754T1 (en) |
DE (2) | DE102006045810B4 (en) |
PL (1) | PL1905315T3 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102009021811A1 (en) * | 2009-05-18 | 2010-11-25 | Hauni Maschinenbau Ag | Suction-belt conveyor and method for producing a strand of the tobacco-processing industry |
DE102009022759A1 (en) * | 2009-05-26 | 2010-12-02 | Hauni Maschinenbau Ag | Preparation of a filter material strip of the tobacco processing industry |
DE102011100365A1 (en) * | 2010-06-29 | 2011-12-29 | Hauni Maschinenbau Ag | Device for producing rod-shaped products of the tobacco-processing industry |
DE102012200163B4 (en) * | 2012-01-06 | 2013-12-05 | Hauni Maschinenbau Ag | Saugstrangförderereinrichtung a machine of the tobacco processing industry |
DE102013223308A1 (en) * | 2013-11-15 | 2015-05-21 | Hauni Maschinenbau Ag | Suction belt of a machine of the tobacco processing industry |
KR102226828B1 (en) * | 2014-07-22 | 2021-03-12 | 제이티 인터내셔널 소시에떼 아노님 | Method and appratus for forming a filter rod |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5370136A (en) * | 1992-11-11 | 1994-12-06 | Molins Plc | Cigarette making machine |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2827813A1 (en) * | 1977-07-08 | 1979-01-25 | Molins Ltd | CIGARETTE MAKING MACHINE |
IT1181267B (en) * | 1984-12-10 | 1987-09-23 | Gd Spa | CONTINUOUS TYPE CIGARETTES PACKAGING MACHINE |
DE3627057A1 (en) * | 1985-08-22 | 1987-02-26 | Hauni Werke Koerber & Co Kg | Method and apparatus for producing a tobacco strand |
CN1163078A (en) * | 1996-03-12 | 1997-10-29 | G.D公司 | Method and device for continuously supplying band material into machine |
GB9626619D0 (en) * | 1996-12-20 | 1997-02-05 | Molins Plc | Cigarette making machine |
DE19733443A1 (en) * | 1997-08-02 | 1999-02-04 | Hauni Maschinenbau Ag | Device for conveying a strand of the tobacco processing industry |
TW426506B (en) * | 1998-08-06 | 2001-03-21 | Japan Tobacco Inc | Belt conveyor type compression forming apparatus for tobacco stream |
DE10145327A1 (en) * | 2001-09-14 | 2003-04-03 | Hauni Maschinenbau Ag | Sizing set for a rod machine in the tobacco processing industry |
DE10202847A1 (en) * | 2002-01-24 | 2003-08-07 | Hauni Maschinenbau Ag | Entry finger of a format device |
FR2861957B1 (en) * | 2003-11-12 | 2006-01-21 | Jose Valderrama | CIRCULAR OR POLYGONAL TOBACCO CEILING |
-
2006
- 2006-09-26 DE DE102006045810A patent/DE102006045810B4/en not_active Expired - Fee Related
-
2007
- 2007-09-21 PL PL07018547T patent/PL1905315T3/en unknown
- 2007-09-21 AT AT07018547T patent/ATE500754T1/en active
- 2007-09-21 DE DE502007006650T patent/DE502007006650D1/en active Active
- 2007-09-21 EP EP07018547A patent/EP1905315B1/en not_active Not-in-force
- 2007-09-25 JP JP2007246858A patent/JP5297618B2/en not_active Expired - Fee Related
- 2007-09-26 CN CN200710153115.4A patent/CN101152020B/en not_active Expired - Fee Related
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5370136A (en) * | 1992-11-11 | 1994-12-06 | Molins Plc | Cigarette making machine |
Also Published As
Publication number | Publication date |
---|---|
DE102006045810A1 (en) | 2008-04-03 |
ATE500754T1 (en) | 2011-03-15 |
EP1905315A1 (en) | 2008-04-02 |
DE502007006650D1 (en) | 2011-04-21 |
DE102006045810B4 (en) | 2012-02-16 |
CN101152020B (en) | 2014-07-23 |
JP2008081320A (en) | 2008-04-10 |
CN101152020A (en) | 2008-04-02 |
PL1905315T3 (en) | 2011-08-31 |
JP5297618B2 (en) | 2013-09-25 |
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