EP2417861A1 - Device and method for conveying a strand for the tobacco industry - Google Patents

Device and method for conveying a strand for the tobacco industry Download PDF

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Publication number
EP2417861A1
EP2417861A1 EP11176505A EP11176505A EP2417861A1 EP 2417861 A1 EP2417861 A1 EP 2417861A1 EP 11176505 A EP11176505 A EP 11176505A EP 11176505 A EP11176505 A EP 11176505A EP 2417861 A1 EP2417861 A1 EP 2417861A1
Authority
EP
European Patent Office
Prior art keywords
conveyor belt
strand
movable supports
strand conveyor
conveying direction
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.)
Granted
Application number
EP11176505A
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German (de)
French (fr)
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EP2417861B1 (en
EP2417861B2 (en
Inventor
Katharina Hinz
Jürgen Grossmann
Ralf KRÜGER
Jörg Schlisio
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Koerber Technologies GmbH
Original Assignee
Hauni Maschinenbau GmbH
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Publication date
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Application filed by Hauni Maschinenbau GmbH filed Critical Hauni Maschinenbau GmbH
Priority to PL11176505.3T priority Critical patent/PL2417861T5/en
Publication of EP2417861A1 publication Critical patent/EP2417861A1/en
Publication of EP2417861B1 publication Critical patent/EP2417861B1/en
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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
    • A24C5/1857—Belt construction or driving means

Definitions

  • the invention relates to a device for conveying a strand of the tobacco processing industry in a conveying direction with a strand conveyor belt and a plurality of guiding elements leading the strand conveyor belt.
  • the invention further relates to a method for conveying a strand of the tobacco processing industry by means of a strand conveyor belt, comprising the step of guiding the rope conveyor belt.
  • Such devices and methods are used in a cigarette rod machine to collect the tobacco, which is supplied in the form of a shower to the bottom of a strand guide channel forming strand conveyor, in a strand formation zone and from this - if necessary, through an excess removal device through - remove.
  • a strand conveyor the lower strand of an air-permeable, acted upon from its back with negative pressure, endless, circulating suction belt is used in modern cigarette rod making machines, so that this type of conveyor is also referred to as Saugstranger.
  • the lower strand of the suction belt, on which the accumulated tobacco fiber strand is suspended suspended is referred to below.
  • the strand conveyor extends in the tobacco channel from the beginning of the Stranding zone through a region of an excess removal device, in which a Egalizer or trimmer excess tobacco from the tobacco rod, to a discharge end, at which the tobacco rod formed to another conveyor, preferably to a format strip of a string unit, is delivered.
  • the tobacco rod is placed on a driven, covered with a cigarette paper strip format tape.
  • the format tape transports the tobacco rod and the cigarette paper strip through a format in which the cigarette paper strip is placed around the tobacco rod and glued, so that a cigarette rod is formed, which is finally processed into cigarettes or filter cigarettes.
  • Input devices are known from the prior art.
  • the EP 0 999 761 B1 The applicant shows a device for conveying a strand of the tobacco processing industry, in which a defined flow profile over the length of the tobacco channel is adjustable.
  • the device of the EP 0 999 761 B1 specifically juxtaposed individual segments with different air passages for guiding the strand conveyor belt on.
  • the relatively small individual elements are made of highly wear-resistant material.
  • the EP 1 464 594 B1 The applicant shows a device for conveying a strand of the tobacco processing industry with a bearing for support rollers for supporting the strand conveyor belt.
  • the EP 1 169 926 A1 the applicant shows a device for conveying a strand of the tobacco processing industry with a on its tobacco-facing surface at least partially ceramic having channel.
  • the object of the present invention is to improve the devices and methods known from the prior art.
  • a device of the aforementioned type which is characterized in that the guide elements are partially formed as static supports and partly as movable supports, wherein the movable supports increased at least in a region of the device with respect to other areas of the device Pressure of the guide elements are arranged on the strand conveyor belt.
  • Embodiments of the device according to the invention surprisingly have the advantage that they reduce or even avoid several disadvantages of known Saugstrangdecier.
  • the wear of the strand conveyor belt and the noise generated by the Saugstrangdecier be significantly reduced.
  • the invention is based on the finding that the length of the conveyor line of the Saugstrangenseers and the high speed of modern cigarette rod making high demands on the course of a strand conveyor directly or indirectly influencing parts of the device, in particular, that a wear of the strand conveyor to a not insignificant part by Friction between the static guide elements and the strand conveyor belt and associated with the friction heat generation is caused especially at high speeds and the friction in turn depends on the pressure of the guide elements on the strand conveyor.
  • Static guide elements are stuck to the strand conveyor, i. In operation, a relative movement of strand conveyor to static guide elements. In this way, in the leadership of the strand conveyor belt friction between the static guide elements and the strand conveyor belt, which is greater, the greater the pressure of the guide elements on the strand conveyor or the strand conveyor belt is on the guide elements. In places or areas of the strand conveyor belt, where this friction between static guide elements and the strand conveyor belt becomes too large, damage to the rope conveyor belt can occur.
  • the invention is further based on the finding that with increasing conveying speed of strand conveyors, the increased noise development is due in particular to the movable supports.
  • the invention further includes the recognition that a suction belt conveyor has significantly fewer areas with a critical pressure than areas with a non-critical pressure.
  • the noise development of the Saugstrangadders invention can be kept low overall, since the relevant for the noise largely responsible movable supports are arranged only in those areas of the device with critical pressure. Therefore, moving pads are usually required only in a few areas and the noise level remains low. In large parts of the device where no critical pressure occurs, however, static pads are used with less noise than moving pads.
  • the invention may be further developed in that the guide elements are arranged in at least two sections, wherein in one of the two sections, the strand conveyor is guided only by the movable supports and in the other of the two sections only by the static constraints, and wherein the sections are arranged, that the strand conveyor belt passes the sections in the conveying direction successively.
  • the strand conveyor belt is guided in sections, either by static conditions or by movable supports.
  • the sections are arranged consecutively in the conveying direction.
  • the invention can be developed by arranging the movable supports in a region of the device with a change of the conveying direction.
  • This embodiment of the invention is based on the recognition that a critical pressure occurs in particular where the strand conveyor changes the conveying direction.
  • a promotion of the strand in a constant over the entire conveyor line conveying direction, for example in the horizontal, is often not possible. Rather, it is usually necessary to change the conveying direction in sections, for example by changing the conveying direction of the horizontal in an inclined conveying direction, for example, with a deflection of the strand conveyor belt relative to the horizontal of a few degrees.
  • Such a change in the direction of conveyance leads to an increased pressure, which can lead to a critical load of the strand conveyor belt when using static supports with the disadvantages described above.
  • movable supports are therefore provided in areas with a change in the conveying direction.
  • the invention can be developed by arranging the movable supports in a region of the device with an elevation and / or lowering of the strand conveyor belt substantially perpendicular to the conveying direction.
  • This embodiment of the invention is based on the finding that in areas in which the strand conveyor belt is lowered and / or raised, also a critical pressure with the disadvantages described above can occur.
  • An increase and / or a lowering of the strand conveyor belt is required, for example, depending on the strand weight.
  • An increase and / or reduction of the strand conveyor belt is furthermore preferred in the region of the excess removal device in order to be able to control the amount of tobacco to be taken from the tobacco tobacco that has been quenched.
  • the lifting and / or lowering preferably takes place substantially perpendicular to the conveying direction, ie essentially in a vertical direction.
  • afflicted with elevated pressure Area of the device movable pads provided with the advantages described above.
  • the invention can be further developed in that at least one of the movable supports is adjustable in a direction substantially perpendicular to the conveying direction in order to lift and / or lower the strand conveyor belt substantially perpendicular to the conveying direction.
  • the movable supports are or can be adjustable in this way, that they can follow an increase and / or reduction of the strand conveyor belt or initiate this increase and / or reduction of the strand conveyor belt or can.
  • the invention can be developed by arranging the movable supports in a region of the device in which the device is designed to deliver a strand to a further conveying device, preferably a format strip. Furthermore, it is preferred that the movable supports are arranged in a region of the device which lies in the conveying direction adjacent to a region of the device in which the device is designed to deliver a strand to a further conveying device, preferably a format strip
  • the invention can be developed by arranging the movable supports in a region of the device in which the device is designed to cooperate with an excess removal device. It is further preferred that the movable supports are arranged in a region of the device which lies in the conveying direction adjacent to a region of the device in which the device is designed to cooperate with an excess removal device.
  • This training according to the invention is based on the finding that the area in which excess tobacco is removed from the tobacco tobacco which has been suppressed by an excess removal device is likewise an area in which a critical pressure frequently occurs. It is therefore also preferred here to provide movable supports in order to realize the above-mentioned advantages.
  • the excess removal device usually designed as a trimmer or equalizer, often requires a lowering and / or lifting of the strand conveyor belt, often in response to the size of the trim discs used in the excess removal device. Furthermore, it is often desirable or necessary to provide a change in the direction of conveyance in the region before interacting with the excess removal device. A change in the conveying direction before the region of interaction with the excess removal device is particularly preferred when the excess removal device has large trim disks. It is therefore particularly preferred to combine the training forms mentioned above in connection with the raising and / or lowering of the strand conveyor belt, the corresponding adjustability of the movable supports and with the change of the conveying direction with the training forms mentioned here.
  • the object mentioned is achieved by a method of the type mentioned, which is characterized in that the guiding of the strand conveyor belt by means of a plurality of guide elements, which are designed partly as static conditions and partly as movable supports, and wherein the strand conveyor belt is guided through the movable supports at least in one area with an increased pressure of the guide elements on other parts in relation to other areas.
  • the method according to the invention can be developed in that the strand conveyor belt is guided in at least one first section only by the movable supports and in at least one second section only by the static supports, wherein the strand conveyor belt passes through the two sections one after the other in the conveying direction.
  • the inventive method can be further developed by the fact that the strand conveyor belt is guided in an area with a change of the conveying direction by the movable supports.
  • the inventive method can be further developed by the fact that the strand conveyor belt is guided in a region with an increase and / or reduction of the strand conveyor belt substantially perpendicular to the conveying direction by the movable supports.
  • the method according to the invention can be further developed by at least one of the movable supports being adjustable substantially perpendicular to the conveying direction in order to lift and / or lower the strand conveyor belt substantially perpendicular to the conveying direction.
  • the method according to the invention can be further developed by guiding the strand conveyor belt through the movable supports in a region in which a strand is delivered to a further conveying device, preferably a format strip.
  • the method according to the invention can be further developed in that the strand conveyor belt is guided in a region which is adjacent in the conveying direction in front of a region in which a strand is delivered to a further conveying device, preferably a format strip, through the movable supports.
  • the method according to the invention can be further developed by guiding the strand conveyor belt through the movable supports in a region in which excess tobacco is removed.
  • the method according to the invention can be further developed by guiding the strand conveyor belt through the movable supports in a region which lies in the conveying direction adjacent to an area in which excess tobacco is taken off.
  • FIGS. 1 to 3 show an exemplary embodiment of an inventive device 1 for conveying a strand of the tobacco processing industry. Due to the dimensions of the device 1, the device is shown in three divided into three figures parts 1 a, b, c.
  • FIGS. 1 to 3 a strand conveyor belt is shown, which is also shown in three parts 100 a, b, c in the three figures.
  • the strand conveyor belt 100 a, b, c forms the lower strand of a revolving strand conveyor.
  • the conveyor belt 100 a, b, c is shown cut off in the points 102 and 103, ie it is in the FIGS. 1 to 3 only the lower strand 100 a, b, c of the strand conveyor shown.
  • the strand conveyor 100 a, b, c is permeable to air, d. H. it has (not shown) openings, by a (not shown) suction source, the air from bottom to top through the strand conveyor belt 100 a, b, c can suck. In this way, a tobacco rod (not shown) is alsauert on the bottom 101 a, b, c of the strand conveyor belt and held by the induced draft.
  • the strand conveyor belt 100 a, b, c conveys a (not shown) tobacco rod along the conveying direction 140 a, b, c.
  • a horizontal conveying direction is shown.
  • the arrows 140 a ', 140 b' is a deflected to the horizontal by a few degrees deflected conveying direction, ie in these sections, the conveying direction relative to the horizontal conveying direction 140 a, b changed.
  • the strand conveyor belt 100a, b, c is guided by guide elements 211, 212, 311, 312, 313, 314, which are partially formed as static supports 211, 212 and partly as movable supports 311, 312, 313, 314.
  • the movable supports 311, 312, 313, 314 are preferably designed as movable rollers which are rotatably mounted about an axis perpendicular to the conveying direction 140 a, b, c and 140 a ', 140 b' extending axis.
  • the static supports 211, 212 are preferably formed of hard metal or have carbide on.
  • the Saugstrangmer 1 a, b, c has a plurality of sections 111, 112, 113, 114.
  • the strand conveyor 100a, b, c is guided only by the movable supports 311, 312, 313, 314 and not by static constraints.
  • the strand conveyor belt 100 a, b, c is guided only by the static supports 211, 212 and not by movable supports.
  • the portion 114 serves essentially the accumulation and shivering of tobacco fibers at the bottom 101 c of the strand conveyor belt 100 c with a arranged in the horizontal conveying direction 140 c.
  • the static supports 211, 212 have the advantage that they are significantly quieter compared to movable supports.
  • section 113 excess tobacco is removed from the tobacco rod.
  • an excess removal device (not shown), which cooperates with the device 1 according to the invention.
  • the excess removal device is for example a Egalisator or trimmer with trim discs.
  • raising and / or lowering of the strand conveyor belt 100 a, b, c is provided in operation.
  • there is usually a critical pressure between the strand conveyor belt 100 a, b, c and the guide elements which in the provision of static guide elements to a critical heat development and thus increased wear or even failure of the strand conveyor belt 100 a, b, c can lead. Therefore, only movable pads 313 and no static pads are provided in area 131.
  • the movable supports 313 are further adjustable in a direction 320 substantially perpendicular to the conveying direction 140 a, b, c, 140 a ', 140 b', in order substantially to the strand conveyor belt 100 a, b, c perpendicular to the conveying direction 140 a, b, c, 140 a ', 140 b' raise and / or lower.
  • a region 132 is formed adjacent, in which it is likewise preferred to provide only movable supports 314 and no static supports. This is particularly preferred when, for example due to the use of large trim disks in the excess removal device, a change in the conveying direction, as shown by arrow 140 b ', is provided in front of the region 131.
  • a change in the conveying direction as shown by arrow 140 b ', is provided in front of the region 131.
  • a critical development of heat would occur with the mentioned disadvantages.
  • the conveying direction 140a extends horizontally without regions of critical pressure, so that only static supports 211, but no movable supports, are provided here.
  • section 111 is the region 121 with the discharge end at which the tobacco rod formed is delivered to a strand unit (not shown).
  • a critical pressure occurs, so that in this area 121, the guidance of the strand conveyor belt 100 a, b, c is provided only by means of movable supports 311 and not by means of static conditions.
  • the conveying direction before the discharge end 121 and adjacent to this another area 122 is provided, in which on the one hand, the conveying direction according to arrow 140a 'changes and continue in this area 122, a critical pressure can occur, the above-mentioned disadvantages in leadership static constraints can lead, which is why in this area preferably movable pads 312 and no static conditions are provided.
  • the regions 112 and 114 with the plurality of static supports 211, 212 in contrast to the sections 111, 113 with the movable supports 311, 312, 313, 314 relative to the total conveying distance of the inventive device 1.
  • the noise resulting From the movable supports 311, 312, 313, 314 is therefore comparatively small, in particular compared with a device which is fully or to a large extent equipped with movable supports.

Abstract

The device has continuous conveyor belts (100b) comprising static guide elements (211,212) and movable guide elements. The movable supports are arranged in the device regions (131,132) with increased pressure. The movable guide elements are provided on the continuous conveyor belts by movable supports. An independent claim is included for method for conveying strand of tobacco in cigarette.

Description

Die Erfindung betrifft eine Vorrichtung zum Fördern eines Stranges der tabakverarbeitenden Industrie in einer Förderrichtung mit einem Strangförderband und mehreren das Strangförderband führenden Führungselementen.The invention relates to a device for conveying a strand of the tobacco processing industry in a conveying direction with a strand conveyor belt and a plurality of guiding elements leading the strand conveyor belt.

Die Erfindung betrifft weiterhin ein Verfahren zum Fördern eines Stranges der tabakverarbeitenden Industrie mittels eines Strangförderbands, umfassend den Schritt: Führen des Strangförderbands.The invention further relates to a method for conveying a strand of the tobacco processing industry by means of a strand conveyor belt, comprising the step of guiding the rope conveyor belt.

Derartige Vorrichtungen und Verfahren dienen in einer Zigarettenstrangmaschine dazu, den Tabak, welcher in Form eines Schauers einem dem Boden eines Strangführungskanals bildenden Strangförderer zugeführt wird, in einer Strangbildungszone anzusammeln und aus dieser - ggf. durch eine Überschussabnahmeeinrichtung hindurch - abzufördern. Als Strangförderer wird in modernen Zigarettenstrangmaschinen das Untertrum eines luftdurchlässigen, von seiner Rückseite her mit Unterdruck beaufschlagten, endlosen, umlaufenden Saugbandes benutzt, so dass diese Art der Förderer auch als Saugstrangförderer bezeichnet wird. Als Strangförderband wird im Folgenden das Untertrum des Saugbandes, an welchem der angesammelte Tabakfaserstrang hängend gefördert wird, bezeichnet. Das Strangförderband erstreckt sich im Tabakkanal vom Anfang der Strangbildungszone durch einen Bereich einer Überschussabnahmeeinrichtung, in dem ein Egalisator oder Trimmer überschüssigen Tabak vom Tabakstrang entfernt, bis zu einem Abgabeende, an welchem der gebildete Tabakstrang an eine weitere Fördervorrichtung, vorzugsweise an ein Formatband einer Strangeinheit, abgegeben wird. In der Strangeinheit wird der Tabakstrang auf ein angetriebenes, mit einem Zigarettenpapierstreifen belegtes Formatband gelegt. Das Formatband transportiert den Tabakstrang und den Zigarettenpapierstreifen durch ein Format, in dem der Zigarettenpapierstreifen um den Tabakstrang gelegt und verleimt wird, so dass ein Zigarettenstrang entsteht, der schließlich zu Zigaretten oder Filterzigaretten weiter verarbeitet wird.Such devices and methods are used in a cigarette rod machine to collect the tobacco, which is supplied in the form of a shower to the bottom of a strand guide channel forming strand conveyor, in a strand formation zone and from this - if necessary, through an excess removal device through - remove. As a strand conveyor the lower strand of an air-permeable, acted upon from its back with negative pressure, endless, circulating suction belt is used in modern cigarette rod making machines, so that this type of conveyor is also referred to as Saugstrangförderer. As a strand conveyor belt, the lower strand of the suction belt, on which the accumulated tobacco fiber strand is suspended suspended, is referred to below. The strand conveyor extends in the tobacco channel from the beginning of the Stranding zone through a region of an excess removal device, in which a Egalizer or trimmer excess tobacco from the tobacco rod, to a discharge end, at which the tobacco rod formed to another conveyor, preferably to a format strip of a string unit, is delivered. In the strand unit, the tobacco rod is placed on a driven, covered with a cigarette paper strip format tape. The format tape transports the tobacco rod and the cigarette paper strip through a format in which the cigarette paper strip is placed around the tobacco rod and glued, so that a cigarette rod is formed, which is finally processed into cigarettes or filter cigarettes.

Eingangs genannte Vorrichtungen sind aus dem Stand der Technik bekannt. So zeigt beispielsweise die GB 974,821 eine Vorrichtung mit einem Strangförderband, das auf Seitenführungselementen mit weichen, austauschbaren Einlagen geführt ist. Die EP 0 999 761 B1 der Anmelderin zeigt eine Vorrichtung zum Fördern eines Stranges der tabakverarbeitenden Industrie, bei der ein definiertes Strömungsprofil über die Länge des Tabakkanals einstellbar ist. Dazu weist die Vorrichtung der EP 0 999 761 B1 spezifisch aneinandergereihte Einzelsegmente mit unterschiedlichen Luftdurchlässen zur Führung des Strangförderbands auf. Die relativ kleinen Einzelelemente sind aus hochverschleißfestem Material ausgebildet. Die EP 1 464 594 B1 der Anmelderin zeigt eine Vorrichtung zum Fördern eines Strangs der tabakverarbeitenden Industrie mit einem Lager für Stützrollen zum Stützen des Strangförderbands. Die EP 1 169 926 A1 der Anmelderin zeigt eine Vorrichtung zum Fördern eines Stranges der tabakverarbeitenden Industrie mit einem an seiner dem Tabak zugewandten Oberfläche zumindest teilweise Keramik aufweisenden Kanal.Input devices are known from the prior art. For example, shows the GB 974,821 a device with a strand conveyor, which is guided on side guide elements with soft, interchangeable deposits. The EP 0 999 761 B1 The applicant shows a device for conveying a strand of the tobacco processing industry, in which a defined flow profile over the length of the tobacco channel is adjustable. For this purpose, the device of the EP 0 999 761 B1 specifically juxtaposed individual segments with different air passages for guiding the strand conveyor belt on. The relatively small individual elements are made of highly wear-resistant material. The EP 1 464 594 B1 The applicant shows a device for conveying a strand of the tobacco processing industry with a bearing for support rollers for supporting the strand conveyor belt. The EP 1 169 926 A1 the applicant shows a device for conveying a strand of the tobacco processing industry with a on its tobacco-facing surface at least partially ceramic having channel.

Aufgabe der vorliegenden Erfindung ist es, die aus dem Stand der Technik bekannten Vorrichtungen und Verfahren zu verbessern.The object of the present invention is to improve the devices and methods known from the prior art.

Diese Aufgabe wird durch eine Vorrichtung der eingangs genannten Art gelöst, die dadurch gekennzeichnet ist, dass die Führungselemente teilweise als statische Auflagen und teilweise als bewegliche Auflagen ausgebildet sind, wobei die beweglichen Auflagen mindestens in einem Bereich der Vorrichtung mit einem gegenüber anderen Bereichen der Vorrichtung erhöhten Druck der Führungselemente auf das Strangförderband angeordnet sind.This object is achieved by a device of the aforementioned type, which is characterized in that the guide elements are partially formed as static supports and partly as movable supports, wherein the movable supports increased at least in a region of the device with respect to other areas of the device Pressure of the guide elements are arranged on the strand conveyor belt.

Ausführungsformen der erfindungsgemäßen Vorrichtung weisen überraschenderweise den Vorteil auf, dass sie mehrere Nachteile bekannter Saugstrangförderer reduzieren oder gar vermeiden. Insbesondere werden der Verschleiß des Strangförderbands sowie die Geräuschentwicklung durch den Saugstrangförderer deutlich reduziert.Embodiments of the device according to the invention surprisingly have the advantage that they reduce or even avoid several disadvantages of known Saugstrangförderer. In particular, the wear of the strand conveyor belt and the noise generated by the Saugstrangförderer be significantly reduced.

Der Erfindung liegt die Erkenntnis zugrunde, dass die Länge der Förderstrecke des Saugstrangförderers und die hohe Geschwindigkeit moderner Zigarettenstrangmaschinen hohe Anforderungen an die den Lauf eines Strangförderers direkt oder indirekt beeinflussenden Teile der Vorrichtung stellen, insbesondere, dass ein Verschleiß des Strangförderbands zu einem nicht unerheblichen Teil durch Reibung zwischen den statischen Führungselementen und dem Strangförderband und der mit der Reibung verbundenen Wärmeentwicklung insbesondere bei hohen Geschwindigkeiten verursacht wird und die Reibung wiederum vom Druck der Führungselemente auf das Strangförderband abhängig ist.The invention is based on the finding that the length of the conveyor line of the Saugstrangförderers and the high speed of modern cigarette rod making high demands on the course of a strand conveyor directly or indirectly influencing parts of the device, in particular, that a wear of the strand conveyor to a not insignificant part by Friction between the static guide elements and the strand conveyor belt and associated with the friction heat generation is caused especially at high speeds and the friction in turn depends on the pressure of the guide elements on the strand conveyor.

Statische Führungselemente stehen gegenüber dem Strangförderband fest, d.h. im Betriebszustand entsteht eine Relativbewegung von Strangförderband zu statischen Führungselementen. Auf diese Weise entsteht bei der Führung des Strangförderbands Reibung zwischen den statischen Führungselementen und dem Strangförderband, die umso größer ist, je größer der Druck der Führungselemente auf das Strangförderband bzw. des Strangförderbands auf die Führungselemente ist. An Stellen oder Bereichen des Strangförderbands, an denen diese Reibung zwischen statischen Führungselementen und dem Strangförderband zu groß wird, kann es zu Schäden am Strangförderband kommen.Static guide elements are stuck to the strand conveyor, i. In operation, a relative movement of strand conveyor to static guide elements. In this way, in the leadership of the strand conveyor belt friction between the static guide elements and the strand conveyor belt, which is greater, the greater the pressure of the guide elements on the strand conveyor or the strand conveyor belt is on the guide elements. In places or areas of the strand conveyor belt, where this friction between static guide elements and the strand conveyor belt becomes too large, damage to the rope conveyor belt can occur.

Der Erfindung liegt weiterhin die Erkenntnis zugrunde, dass bei zunehmender Fördergeschwindigkeit von Strangförderern die erhöhte Geräuschentwicklung insbesondere auf die beweglichen Auflagen zurückzuführen ist.The invention is further based on the finding that with increasing conveying speed of strand conveyors, the increased noise development is due in particular to the movable supports.

Die erfindungsgemäße Lösung zeigt, dass überraschenderweise durch eine Kombination dieser beiden, jeweils mit Nachteilen behafteten Arten von Führungselementen insgesamt mehrere Vorteile erzielt werden können.The solution according to the invention shows that surprisingly a number of advantages can be achieved by a combination of these two types of guide elements, each of which is associated with disadvantages.

Erfindungsgemäß wurde erkannt, dass bei einer Anordnung von beweglichen Auflagen, vorzugsweise drehbar gelagerten Rollen mit einer quer zur Förderrichtung angeordneten Achse, auch bei erhöhtem Druck die Reibung zwischen dem Strangförderband und den beweglichen Auflagen sowie die zugehörige Wärmeentwicklung gering bleibt und der auftretende Verschleiß des Strangförderbands daher auch in Bereichen mit hohem Druck bei der Verwendung von beweglichen Auflagen gering ist. In den Bereichen der Vorrichtung, in denen der Druck zwischen Strangförderband und Führungselementen nicht so groß ist, dass er zu einem kritischen Verschleiß des Strangförderbands führen könnte, sind hingegen vorzugsweise statische Auflagen angeordnet.According to the invention, it has been recognized that in an arrangement of movable supports, preferably rotatably mounted rollers with an axis arranged transversely to the conveying direction, even at elevated pressure, the friction between the strand conveyor belt and the movable pads and the associated heat generation remains low and the occurring wear of the strand conveyor belt is therefore low even in areas of high pressure when using movable supports. In the areas of the device in which the pressure between the strand conveyor belt and guide elements is not so large that it could lead to a critical wear of the strand conveyor belt, however, preferably static supports are arranged.

Die Erfindung umfasst weiterhin die Erkenntnis, dass ein Saugstrangförderer deutlich weniger Bereiche mit einem kritischen Druck aufweist, als Bereiche mit einem unkritischen Druck. Auf diese Weise kann die Geräuschentwicklung des erfindungsgemäßen Saugstrangförderers insgesamt niedrig gehalten werden, da die für die Geräuschentwicklung maßgeblich verantwortlichen beweglichen Auflagen nur in denjenigen Bereichen der Vorrichtung mit kritischem Druck angeordnet werden. Daher sind bewegliche Auflagen in der Regel nur in wenigen Bereichen erforderlich und die Geräuschbelastung bleibt niedrig. In weiten Teilen der Vorrichtung, in denen kein kritischer Druck auftritt, werden hingegen statische Auflagen mit einer geringeren Geräuschbelastung als bewegliche Auflagen eingesetzt.The invention further includes the recognition that a suction belt conveyor has significantly fewer areas with a critical pressure than areas with a non-critical pressure. In this way, the noise development of the Saugstrangförderers invention can be kept low overall, since the relevant for the noise largely responsible movable supports are arranged only in those areas of the device with critical pressure. Therefore, moving pads are usually required only in a few areas and the noise level remains low. In large parts of the device where no critical pressure occurs, however, static pads are used with less noise than moving pads.

Durch die erfindungsgemäße Kombination der - jeweils für sich alleine nach Erkenntnissen der Erfindung mit Nachteilen behafteten - statischen und der beweglichen Auflagen werden somit insbesondere bei einer hohen Geschwindigkeit einerseits der Verschleiß des Strangförderbands und gleichzeitig die Geräuschentwicklung der Vorrichtung erheblich reduziert.The combination according to the invention of the static and the movable supports, which in themselves suffer from disadvantages of the invention, thus considerably reduces, on the one hand, the wear of the strand conveyor belt and at the same time the noise development of the device, in particular at high speed.

Die Erfindung kann dadurch fortgebildet werden, dass die Führungselemente in zumindest zwei Abschnitten angeordnet sind, wobei in einem der beiden Abschnitte das Strangförderband nur durch die beweglichen Auflagen und in dem anderen der beiden Abschnitte nur durch die statischen Auflagen geführt wird, und wobei die Abschnitte derart angeordnet sind, dass das Strangförderband die Abschnitte in Förderrichtung nacheinander passiert.The invention may be further developed in that the guide elements are arranged in at least two sections, wherein in one of the two sections, the strand conveyor is guided only by the movable supports and in the other of the two sections only by the static constraints, and wherein the sections are arranged, that the strand conveyor belt passes the sections in the conveying direction successively.

In dieser Fortbildungsform ist vorgesehen, dass das Strangförderband abschnittsweise entweder durch statische Auflagen oder durch bewegliche Auflagen geführt wird. Vorzugsweise sind die Abschnitte in Förderrichtung aufeinander folgend angeordnet. So kann in vorteilhafter Weise sichergestellt werden, dass dort, wo ein kritischer Druck auftritt, ein Abschnitt angeordnet ist, der nur bewegliche Auflagen enthält und so in diesem Abschnitt keine Reibung mit kritischer Wärmeentwicklung zwischen dem Strangförderband und statischen Auflagen entsteht.In this further development, it is provided that the strand conveyor belt is guided in sections, either by static conditions or by movable supports. Preferably, the sections are arranged consecutively in the conveying direction. Thus, it can be ensured in an advantageous manner that, where a critical pressure occurs, a section is arranged which contains only movable supports and so in this Section no friction with critical heat development between the strand conveyor and static constraints arises.

Die Erfindung kann dadurch fortgebildet werden, dass die beweglichen Auflagen in einem Bereich der Vorrichtung mit einer Änderung der Förderrichtung angeordnet sind.The invention can be developed by arranging the movable supports in a region of the device with a change of the conveying direction.

Diese erfindungsgemäße Fortbildungsform beruht auf der Erkenntnis, dass ein kritischer Druck insbesondere dort auftritt, wo das Strangförderband die Förderrichtung ändert. Eine Förderung des Stranges in einer über die gesamte Förderstrecke gleichbleibenden Förderrichtung, beispielsweise in der Waagerechten, ist häufig nicht möglich. Vielmehr ist es meist erforderlich, die Förderrichtung abschnittsweise zu ändern, etwa durch eine Änderung der Förderrichtung von der Waagerechten in eine schräge Förderrichtung, beispielsweise mit einer Umlenkung des Strangförderbands gegenüber der Waagerechten von wenigen Grad. Eine solche Änderung der Förderrichtung führt zu einem erhöhten Druck, der zu einer kritischen Belastung des Strangförderbands bei der Verwendung von statischen Auflagen mit den oben beschriebenen Nachteilen führen kann. Erfindungsgemäß sind daher in Bereichen mit einer Änderung der Förderrichtung bewegliche Auflagen vorgesehen.This embodiment of the invention is based on the recognition that a critical pressure occurs in particular where the strand conveyor changes the conveying direction. A promotion of the strand in a constant over the entire conveyor line conveying direction, for example in the horizontal, is often not possible. Rather, it is usually necessary to change the conveying direction in sections, for example by changing the conveying direction of the horizontal in an inclined conveying direction, for example, with a deflection of the strand conveyor belt relative to the horizontal of a few degrees. Such a change in the direction of conveyance leads to an increased pressure, which can lead to a critical load of the strand conveyor belt when using static supports with the disadvantages described above. According to the invention, movable supports are therefore provided in areas with a change in the conveying direction.

Die Erfindung kann dadurch fortgebildet werden, dass die beweglichen Auflagen in einem Bereich der Vorrichtung mit einer Anhebung und/oder Absenkung des Strangförderbands im Wesentlichen senkrecht zur Förderrichtung angeordnet sind.The invention can be developed by arranging the movable supports in a region of the device with an elevation and / or lowering of the strand conveyor belt substantially perpendicular to the conveying direction.

Dieser erfindungsgemäßen Fortbildungsform liegt die Erkenntnis zu Grunde, dass in Bereichen, in denen das Strangförderband abgesenkt und/oder angehoben wird, ebenfalls ein kritischer Druck mit den oben beschriebenen Nachteilen auftreten kann. Eine Anhebung und/oder eine Absenkung des Strangförderbands ist beispielsweise in Abhängigkeit des Stranggewichts erforderlich. Eine Anhebung und/oder Absenkung des Strangförderbands ist weiterhin im Bereich der Überschussabnahmeeinrichtung bevorzugt, um die Menge des abzunehmenden Tabaks vom aufgeschauerten Tabakstrang steuern zu können. Da das Strangförderband im Wesentlichen waagerecht verläuft und auch eine Änderung der Förderrichtung in der Regel nur eine Auslenkung von wenigen Grad gegenüber der Waagerechten erfordert, erfolgt die Anhebung und/oder Absenkung vorzugsweise im Wesentlichen senkrecht zur Förderrichtung, d.h. im Wesentlichen in einer senkrechten Richtung. Vorzugsweise sind in einem solchen, mit erhöhtem Druck behafteten Bereich der Vorrichtung bewegliche Auflagen mit den oben beschriebenen Vorteilen vorgesehen.This embodiment of the invention is based on the finding that in areas in which the strand conveyor belt is lowered and / or raised, also a critical pressure with the disadvantages described above can occur. An increase and / or a lowering of the strand conveyor belt is required, for example, depending on the strand weight. An increase and / or reduction of the strand conveyor belt is furthermore preferred in the region of the excess removal device in order to be able to control the amount of tobacco to be taken from the tobacco tobacco that has been quenched. Since the strand conveyor belt runs substantially horizontally and also a change in the conveying direction usually only requires a deflection of a few degrees relative to the horizontal, the lifting and / or lowering preferably takes place substantially perpendicular to the conveying direction, ie essentially in a vertical direction. Preferably, in such, afflicted with elevated pressure Area of the device movable pads provided with the advantages described above.

Die Erfindung kann dadurch fortgebildet werden, dass zumindest eine der beweglichen Auflagen im Wesentlichen senkrecht zur Förderrichtung derart einstellbar ist, um das Strangförderband im Wesentlichen senkrecht zur Förderrichtung anzuheben und/oder abzusenken.The invention can be further developed in that at least one of the movable supports is adjustable in a direction substantially perpendicular to the conveying direction in order to lift and / or lower the strand conveyor belt substantially perpendicular to the conveying direction.

In den zuvor genannten Bereichen mit einem kritischen Druck, in denen das Strangförderband angehoben und/oder abgesenkt werden kann, ist es von Vorteil, wenn zumindest eine, vorzugsweise zwei oder mehrere, der beweglichen Auflagen derart verstellbar und vorzugsweise auch fixierbar ist bzw. sind, dass sie einer Anhebung und/oder Absenkung des Strangförderbandes folgen oder diese Anhebung und/oder Absenkung des Strangförderbands initiieren kann bzw. können.In the abovementioned areas with a critical pressure in which the strand conveyor belt can be raised and / or lowered, it is advantageous if at least one, preferably two or more, of the movable supports are or can be adjustable in this way, that they can follow an increase and / or reduction of the strand conveyor belt or initiate this increase and / or reduction of the strand conveyor belt or can.

Die Erfindung kann dadurch fortgebildet werden, dass die beweglichen Auflagen in einem Bereich der Vorrichtung angeordnet sind, in dem die Vorrichtung ausgebildet ist, einen Strang an eine weitere Fördervorrichtung, vorzugsweise ein Formatband, abzugeben. Weiterhin ist es bevorzugt, dass die beweglichen Auflagen in einem Bereich der Vorrichtung angeordnet sind, der in Förderrichtung angrenzend vor einem Bereich der Vorrichtung liegt, in dem die Vorrichtung ausgebildet ist, einen Strang an eine weitere Fördervorrichtung, vorzugsweise ein Formatband, abzugebenThe invention can be developed by arranging the movable supports in a region of the device in which the device is designed to deliver a strand to a further conveying device, preferably a format strip. Furthermore, it is preferred that the movable supports are arranged in a region of the device which lies in the conveying direction adjacent to a region of the device in which the device is designed to deliver a strand to a further conveying device, preferably a format strip

Diesen erfindungsgemäßen Fortbildungen liegt die Erkenntnis zu Grunde, dass am Abgabeende des Strangförderers, in welchem der gebildete Tabakstrang an eine Strangeinheit abgegeben wird, ebenfalls ein kritischer Druck auftritt. Es wurde erkannt, dass Bereiche mit kritischem Druck direkt am Abgabeende und/oder auch angrenzend vor dem Abgabeende auftreten. Daher ist es bevorzugt, in einem oder beiden dieser Bereiche bewegliche Auflagen vorzusehen, um die oben genannten Vorteile zu realisieren.These developments according to the invention are based on the finding that a critical pressure likewise occurs at the delivery end of the rope conveyor in which the tobacco rod formed is delivered to a strand unit. It has been recognized that regions of critical pressure occur directly at the delivery end and / or also adjacent to the delivery end. Therefore, it is preferable to provide movable pads in one or both of these areas to realize the above-mentioned advantages.

Die Erfindung kann dadurch fortgebildet werden, dass die beweglichen Auflagen in einem Bereich der Vorrichtung angeordnet sind, in dem die Vorrichtung ausgebildet ist, mit einer Überschussabnahmevorrichtung zusammenzuwirken. Es ist weiterhin bevorzugt, dass die beweglichen Auflagen in einem Bereich der Vorrichtung angeordnet sind, der in Förderrichtung angrenzend vor einem Bereich der Vorrichtung liegt, in dem die Vorrichtung ausgebildet ist, mit einer Überschussabnahmevorrichtung zusammenzuwirken. Diesen erfindungsgemäßen Fortbildungen liegt die Erkenntnis zu Grunde, dass der Bereich, in dem vom aufgeschauerten Tabakstrank überschüssiger Tabak durch eine Überschussabnahmevorrichtung abgenommen wird, ebenfalls ein Bereich ist, in dem häufig ein kritischer Druck auftritt. Es ist daher auch hier bevorzugt, bewegliche Auflagen vorzusehen, um die oben genannten Vorteile zu realisieren.The invention can be developed by arranging the movable supports in a region of the device in which the device is designed to cooperate with an excess removal device. It is further preferred that the movable supports are arranged in a region of the device which lies in the conveying direction adjacent to a region of the device in which the device is designed to cooperate with an excess removal device. This training according to the invention is based on the finding that the area in which excess tobacco is removed from the tobacco tobacco which has been suppressed by an excess removal device is likewise an area in which a critical pressure frequently occurs. It is therefore also preferred here to provide movable supports in order to realize the above-mentioned advantages.

Die Überschussabnahmevorrichtung, meist als Trimmer oder Egalisator ausgebildet, erfordert häufig ein Absenken und/oder Anheben des Strangförderbands, häufig in Abhängigkeit der Größe der in der Überschussabnahmeeinrichtung zum Einsatz kommenden Trimmscheiben. Weiterhin ist es häufig gewünscht oder erforderlich, im Bereich vor dem Zusammenwirken mit der Überschussabnahmevorrichtung eine Änderung der Förderrichtung vorzusehen. Eine Änderung der Förderrichtung vor dem Bereich des Zusammenwirkens mit der Überschussabnahmeeinrichtung ist insbesondere dann bevorzugt, wenn die Überschussabnahmeeinrichtung große Trimmscheiben aufweist. Es ist daher insbesondere bevorzugt, die oben im Zusammenhang mit der Anhebung und/oder Absenkung des Strangförderbands, der entsprechenden Verstellbarkeit der beweglichen Auflagen sowie mit der Änderung der Förderrichtung genannten Fortbildungsformen mit den hier genannten Fortbildungsformen zu kombinieren.The excess removal device, usually designed as a trimmer or equalizer, often requires a lowering and / or lifting of the strand conveyor belt, often in response to the size of the trim discs used in the excess removal device. Furthermore, it is often desirable or necessary to provide a change in the direction of conveyance in the region before interacting with the excess removal device. A change in the conveying direction before the region of interaction with the excess removal device is particularly preferred when the excess removal device has large trim disks. It is therefore particularly preferred to combine the training forms mentioned above in connection with the raising and / or lowering of the strand conveyor belt, the corresponding adjustability of the movable supports and with the change of the conveying direction with the training forms mentioned here.

Gemäß eines weiteren Aspekts der Erfindung wird die eingangs genannte Aufgabe durch ein Verfahren der eingangs genannten Art gelöst, das dadurch gekennzeichnet ist, dass das Führen des Strangförderbands mittels mehrerer Führungselemente erfolgt, die teils als statische Auflagen und teils als bewegliche Auflagen ausgebildet sind, und wobei das Strangförderband mindestens in einem Bereich mit einem gegenüber anderen Bereichen erhöhten Druck der Führungselemente auf das Strangförderband durch die beweglichen Auflagen geführt wird.According to a further aspect of the invention, the object mentioned is achieved by a method of the type mentioned, which is characterized in that the guiding of the strand conveyor belt by means of a plurality of guide elements, which are designed partly as static conditions and partly as movable supports, and wherein the strand conveyor belt is guided through the movable supports at least in one area with an increased pressure of the guide elements on other parts in relation to other areas.

Das erfindungsgemäße Verfahren kann dadurch fortgebildet werden, dass das Strangförderband in mindestens einem ersten Abschnitt nur durch die beweglichen Auflagen und in mindestens einem zweiten Abschnitt nur durch die statischen Auflagen geführt wird, wobei das Strangförderband die beiden Abschnitte in Förderrichtung nacheinander passiert.The method according to the invention can be developed in that the strand conveyor belt is guided in at least one first section only by the movable supports and in at least one second section only by the static supports, wherein the strand conveyor belt passes through the two sections one after the other in the conveying direction.

Das erfindungsgemäße Verfahren kann weiterhin dadurch fortgebildet werden, dass das Strangförderband in einem Bereich mit einer Änderung der Förderrichtung durch die beweglichen Auflagen geführt wird.The inventive method can be further developed by the fact that the strand conveyor belt is guided in an area with a change of the conveying direction by the movable supports.

Das erfindungsgemäße Verfahren kann weiterhin dadurch fortgebildet werden, dass das Strangförderband in einem Bereich mit einer Anhebung und/oder Absenkung des Strangförderbands im Wesentlichen senkrecht zur Förderrichtung durch die beweglichen Auflagen geführt wird.The inventive method can be further developed by the fact that the strand conveyor belt is guided in a region with an increase and / or reduction of the strand conveyor belt substantially perpendicular to the conveying direction by the movable supports.

Das erfindungsgemäße Verfahren kann weiterhin dadurch fortgebildet werden, dass zumindest eine der beweglichen Auflagen im Wesentlichen senkrecht zur Förderrichtung derart einstellbar ist, um das Strangförderband im Wesentlichen senkrecht zur Förderrichtung anzuheben und/oder abzusenken.The method according to the invention can be further developed by at least one of the movable supports being adjustable substantially perpendicular to the conveying direction in order to lift and / or lower the strand conveyor belt substantially perpendicular to the conveying direction.

Das erfindungsgemäße Verfahren kann weiterhin dadurch fortgebildet werden, dass das Strangförderband in einem Bereich, in dem ein Strang an eine weitere Fördervorrichtung, vorzugsweise ein Formatband, abgegeben wird, durch die beweglichen Auflagen geführt wird.The method according to the invention can be further developed by guiding the strand conveyor belt through the movable supports in a region in which a strand is delivered to a further conveying device, preferably a format strip.

Das erfindungsgemäße Verfahren kann weiterhin dadurch fortgebildet werden, dass das Strangförderband in einem Bereich, der in Förderrichtung angrenzend vor einem Bereich liegt, in dem ein Strang an eine weitere Fördervorrichtung, vorzugsweise ein Formatband, abgegeben wird, durch die beweglichen Auflagen geführt wird.The method according to the invention can be further developed in that the strand conveyor belt is guided in a region which is adjacent in the conveying direction in front of a region in which a strand is delivered to a further conveying device, preferably a format strip, through the movable supports.

Das erfindungsgemäße Verfahren kann weiterhin dadurch fortgebildet werden, dass das Strangförderband in einem Bereich, in dem überschüssiger Tabak abgenommen wird, durch die beweglichen Auflagen geführt wird.The method according to the invention can be further developed by guiding the strand conveyor belt through the movable supports in a region in which excess tobacco is removed.

Das erfindungsgemäße Verfahren kann weiterhin dadurch fortgebildet werden, dass das Strangförderband in einem Bereich, der in Förderrichtung angrenzend vor einem Bereich liegt, in dem überschüssiger Tabak abgenommen wird, durch die beweglichen Auflagen geführt wird.The method according to the invention can be further developed by guiding the strand conveyor belt through the movable supports in a region which lies in the conveying direction adjacent to an area in which excess tobacco is taken off.

Diese fortgebildeten Verfahren weisen Merkmale bzw. Verfahrensschritte auf, die sie insbesondere dafür geeignet machen, für eine erfindungsgemäße Vorrichtung und ihre Fortbildungen verwendet zu werden. Zu den Ausführungsformen, spezifischen Merkmalen, Varianten und Vorteilen der Merkmale dieses Verfahrens und der Verfahrensfortbildungen wird auf die vorangegangene Beschreibung zu den entsprechenden Vorrichtungsmerkmalen verwiesen.These advanced methods have features or method steps which make them particularly suitable for being used for a device according to the invention and its further developments. For the embodiments, specific features, variants and advantages of the features of this method and of the method developments, reference is made to the preceding description of the corresponding device features.

Eine bevorzugte Ausführungsform der Erfindung wird beispielhaft anhand der beiliegenden Figuren beschrieben. Es zeigen:

Figur 1:
einen ersten Teil einer erfindungsgemäßen Vorrichtung im Querschnitt;
Figur 2:
einen an die Figur 1 gezeigten ersten Teil der erfindungsgemäßen Vorrichtung angrenzenden zweiten Teil der erfindungsgemäßen Vorrichtung, ebenfalls im Querschnitt; und
Figur 3:
einen dritten, an den in Figur 2 gezeigten Teil der erfindungsgemäßen Vorrichtung angrenzenden dritten Teil der erfindungsgemäßen Vorrichtung, ebenfalls im Querschnitt.
A preferred embodiment of the invention will be described by way of example with reference to the accompanying drawings. Show it:
FIG. 1:
a first part of a device according to the invention in cross section;
FIG. 2:
one to the FIG. 1 shown in the first part of the device according to the invention adjacent second part of the device according to the invention, also in cross section; and
FIG. 3:
a third, to the in FIG. 2 shown part of the device according to the invention adjacent third part of the device according to the invention, also in cross section.

Die Figuren 1 bis 3 zeigen eine beispielhafte Ausführungsform einer erfindungsgemäßen Vorrichtung 1 zum Fördern eines Stranges der tabakverarbeitenden Industrie. Aufgrund der Abmessungen der Vorrichtung 1 ist die Vorrichtung in drei auf die drei Figuren aufgeteilten Teilen 1 a, b, c dargestellt.The FIGS. 1 to 3 show an exemplary embodiment of an inventive device 1 for conveying a strand of the tobacco processing industry. Due to the dimensions of the device 1, the device is shown in three divided into three figures parts 1 a, b, c.

In den Figuren 1 bis 3 ist ein Strangförderband gezeigt, das ebenfalls in drei Teilen 100 a, b, c in den drei Figuren dargestellt ist. Das Strangförderband 100 a, b, c bildet das Untertrum eines umlaufenden Strangförderers. An den Enden der Vorrichtung 1 a, c in den Figuren 1 und 3 ist das Förderband 100 a, b, c in den Punkten 102 und 103 nach oben abgeschnitten dargestellt, d. h. es ist in den Figuren 1 bis 3 nur das Untertrum 100 a, b, c des Strangförderers gezeigt.In the FIGS. 1 to 3 a strand conveyor belt is shown, which is also shown in three parts 100 a, b, c in the three figures. The strand conveyor belt 100 a, b, c forms the lower strand of a revolving strand conveyor. At the ends of the device 1 a, c in the FIGS. 1 and 3 the conveyor belt 100 a, b, c is shown cut off in the points 102 and 103, ie it is in the FIGS. 1 to 3 only the lower strand 100 a, b, c of the strand conveyor shown.

Das Strangförderband 100 a, b, c ist luftdurchlässig, d. h. es weist (nicht dargestellte) Öffnungen auf, durch eine (nicht dargestellte) Saugquelle die Luft von unten nach oben durch das Strangförderband 100 a, b, c ansaugen kann. Auf diese Weise wird auf der Unterseite 101 a, b, c des Strangförderbands ein Tabakstrang (nicht dargestellt) aufgeschauert und durch den Saugzug gehalten.The strand conveyor 100 a, b, c is permeable to air, d. H. it has (not shown) openings, by a (not shown) suction source, the air from bottom to top through the strand conveyor belt 100 a, b, c can suck. In this way, a tobacco rod (not shown) is aufauert on the bottom 101 a, b, c of the strand conveyor belt and held by the induced draft.

Das Strangförderband 100 a, b, c fördert einen (nicht dargestellten) Tabakstrang entlang der Förderrichtung 140 a, b, c. Mit den Pfeilen 140 a, b, c ist eine waagerechte Förderrichtung dargestellt. Mit den Pfeilen 140 a', 140 b' ist eine zur Waagerechten um wenige Grad ausgelenkte Förderrichtung bezeichnet, d. h. in diesen Abschnitten ist die Förderrichtung gegenüber der waagerechten Förderrichtung 140 a, b geändert.The strand conveyor belt 100 a, b, c conveys a (not shown) tobacco rod along the conveying direction 140 a, b, c. With the arrows 140 a, b, c a horizontal conveying direction is shown. With the arrows 140 a ', 140 b' is a deflected to the horizontal by a few degrees deflected conveying direction, ie in these sections, the conveying direction relative to the horizontal conveying direction 140 a, b changed.

Das Strangförderband 100a, b, c wird durch Führungselemente 211, 212, 311, 312, 313, 314 geführt, die teilweise als statische Auflagen 211, 212 und teilweise als bewegliche Auflagen 311, 312, 313, 314 ausgebildet sind. Die beweglichen Auflagen 311, 312, 313, 314 sind vorzugsweise als bewegliche Rollen ausgebildet, die drehbar um eine senkrecht zur Förderrichtung 140 a, b, c und 140 a', 140b` verlaufenden Achse gelagert sind. Die statischen Auflagen 211, 212 sind vorzugsweise aus Hartmetall ausgebildet oder weisen Hartmetall auf.The strand conveyor belt 100a, b, c is guided by guide elements 211, 212, 311, 312, 313, 314, which are partially formed as static supports 211, 212 and partly as movable supports 311, 312, 313, 314. The movable supports 311, 312, 313, 314 are preferably designed as movable rollers which are rotatably mounted about an axis perpendicular to the conveying direction 140 a, b, c and 140 a ', 140 b' extending axis. The static supports 211, 212 are preferably formed of hard metal or have carbide on.

Der Saugstrangförderer 1 a, b, c weist mehrere Abschnitte 111, 112, 113, 114 auf. In den Abschnitten 111 und 113 wird das Strangförderband 100 a, b, c nur durch die beweglichen Auflagen 311, 312, 313, 314 und nicht durch statische Auflagen geführt. In dem die Figuren 1 und 2 überspannenden Abschnitt 112 und in dem die Figuren 2 und 3 überspannenden Abschnitt 114 wird das Strangförderband 100 a, b, c nur durch die statischen Auflagen 211, 212 und nicht durch bewegliche Auflagen geführt.The Saugstrangförderer 1 a, b, c has a plurality of sections 111, 112, 113, 114. In sections 111 and 113, the strand conveyor 100a, b, c is guided only by the movable supports 311, 312, 313, 314 and not by static constraints. In which the FIGS. 1 and 2 spanning section 112 and in which the Figures 2 and 3 spanning section 114, the strand conveyor belt 100 a, b, c is guided only by the static supports 211, 212 and not by movable supports.

Der Abschnitt 114 dient im Wesentlichen dem Ansammeln und Aufschauern von Tabakfasern an der Unterseite 101 c des Strangförderbands 100 c mit einer in der Waagerechten angeordneten Förderrichtung 140 c. In diesem Abschnitt tritt üblicherweise kein kritischer Druck auf, so dass nur statische Auflagen 211, 212 unterschiedlicher Größe, jedoch keine beweglichen Auflagen vorgesehen sind. Die statischen Auflagen 211, 212 haben den Vorteil, dass sie gegenüber beweglichen Auflagen deutlich geräuschärmer sind.The portion 114 serves essentially the accumulation and shivering of tobacco fibers at the bottom 101 c of the strand conveyor belt 100 c with a arranged in the horizontal conveying direction 140 c. In this section, usually no critical pressure occurs, so that only static pads 211, 212 of different sizes, but no moving conditions are provided. The static supports 211, 212 have the advantage that they are significantly quieter compared to movable supports.

Im Abschnitt 113 wird überschüssiger Tabak vom Tabakstrang abgenommen. Innerhalb dieses Abschnitts befindet sich in dem Bereich 131 dazu eine Überschussabnahmeeinrichtung (nicht dargestellt), die mit der erfindungsgemäßen Vorrichtung 1 zusammenwirkt. Die Überschussabnahmeeinrichtung ist beispielsweise ein Egalisator oder Trimmer mit Trimmscheiben. Im Bereich 131 ist ein Anheben und/oder Absenken des Strangförderbands 100 a, b, c im Betrieb vorgesehen. In diesem Bereich 131 kommt es daher meist zu einem kritischen Druck zwischen Strangförderband 100 a, b, c und den Führungselementen, der beim Vorsehen von statischen Führungselementen zu einer kritischen Wärmeentwicklung und damit zu einem erhöhten Verschleiß oder gar Versagen des Strangförderbands 100 a, b, c führen kann. Daher sind im Bereich 131 nur bewegliche Auflagen 313 und keine statischen Auflagen vorgesehen. Die bewegliche Auflagen 313 sind weiterhin in einer Richtung 320 im Wesentlichen senkrecht zur Förderrichtung 140 a, b, c, 140 a', 140 b' derart einstellbar, um das Strangförderband 100 a, b, c im Wesentlichen senkrecht zur Förderrichtung 140 a, b, c, 140 a', 140 b' anzuheben und/oder abzusenken.In section 113, excess tobacco is removed from the tobacco rod. Within this section is located in the area 131 to an excess removal device (not shown), which cooperates with the device 1 according to the invention. The excess removal device is for example a Egalisator or trimmer with trim discs. In the area 131, raising and / or lowering of the strand conveyor belt 100 a, b, c is provided in operation. In this region 131, therefore, there is usually a critical pressure between the strand conveyor belt 100 a, b, c and the guide elements, which in the provision of static guide elements to a critical heat development and thus increased wear or even failure of the strand conveyor belt 100 a, b, c can lead. Therefore, only movable pads 313 and no static pads are provided in area 131. The movable supports 313 are further adjustable in a direction 320 substantially perpendicular to the conveying direction 140 a, b, c, 140 a ', 140 b', in order substantially to the strand conveyor belt 100 a, b, c perpendicular to the conveying direction 140 a, b, c, 140 a ', 140 b' raise and / or lower.

Vor dem Bereich 131, der mit einer Überschussabnahmeeinrichtung zusammenwirkt, ist angrenzend ein Bereich 132 ausgebildet, in dem es ebenfalls bevorzugt ist, nur bewegliche Auflagen 314 und keine statischen Auflagen vorzusehen. Dies ist insbesondere dann bevorzugt, wenn, beispielsweise aufgrund der Verwendung großer Trimmscheiben in der Überschussabnahmeeinrichtung, eine Änderung der Förderrichtung, wie mit Pfeil 140 b' dargestellt, vor dem Bereich 131 vorgesehen ist. Auch in dem Bereich 132 würde aufgrund des erhöhten Drucks beim Vorsehen statischer Auflagen eine kritische Wärmeentwicklung mit den genannten Nachteilen entstehen.In front of the region 131, which cooperates with an excess removal device, a region 132 is formed adjacent, in which it is likewise preferred to provide only movable supports 314 and no static supports. This is particularly preferred when, for example due to the use of large trim disks in the excess removal device, a change in the conveying direction, as shown by arrow 140 b ', is provided in front of the region 131. In the area 132 as well, due to the increased pressure when providing static conditions, a critical development of heat would occur with the mentioned disadvantages.

Im Abschnitt 112 verläuft die Förderrichtung 140a in der Waagerechten ohne Bereiche mit kritischem Druck, so dass hier nur statische Auflagen 211, jedoch keine beweglichen Auflagen vorgesehen sind.In section 112, the conveying direction 140a extends horizontally without regions of critical pressure, so that only static supports 211, but no movable supports, are provided here.

Im Abschnitt 111 befindet sich der Bereich 121 mit dem Abgabeende, an dem der gebildete Tabakstrang an eine Strangeinheit (nicht dargestellt) abgegeben wird. Insbesondere am Abgabeende 121 tritt ein kritischer Druck auf, so dass in diesem Bereich 121 die Führung des Strangförderbandes 100 a, b, c nur mittels beweglicher Auflagen 311 und nicht mittels statischer Auflagen vorgesehen ist. In Förderrichtung vor dem Abgabeende 121 und angrenzend an dieses ist ein weiterer Bereich 122 vorgesehen, in dem sich zum einen die Förderrichtung gemäß Pfeil 140a' ändert und weiterhin auch in diesem Bereich 122 ein kritischer Druck auftreten kann, der zu oben genannten Nachteilen bei Führung durch statische Auflagen führen kann, weshalb in diesem Bereich vorzugsweise bewegliche Auflagen 312 und keine statischen Auflagen vorgesehen sind.In section 111 is the region 121 with the discharge end at which the tobacco rod formed is delivered to a strand unit (not shown). In particular, at the discharge end 121, a critical pressure occurs, so that in this area 121, the guidance of the strand conveyor belt 100 a, b, c is provided only by means of movable supports 311 and not by means of static conditions. In the conveying direction before the discharge end 121 and adjacent to this another area 122 is provided, in which on the one hand, the conveying direction according to arrow 140a 'changes and continue in this area 122, a critical pressure can occur, the above-mentioned disadvantages in leadership static constraints can lead, which is why in this area preferably movable pads 312 and no static conditions are provided.

Wie bei Betrachtung der Figuren 1 bis 3 insgesamt zu erkennen ist, überwiegen die Bereiche 112 und 114 mit der Vielzahl statischer Auflagen 211, 212 im Gegensatz zu den Abschnitten 111, 113 mit den beweglichen Auflagen 311, 312, 313, 314 bezogen auf die Gesamtförderstrecke der erfindungsgemäßen Vorrichtung 1. Die Geräuschentwicklung resultierend aus den beweglichen Auflagen 311, 312, 313, 314 ist daher vergleichsweise gering, insbesondere verglichen mit einer Vorrichtung, die vollständig oder zu einem weit überwiegenden Teil mit beweglichen Auflagen ausgestattet ist. Durch das erfindungsgemäße Vorsehen von beweglichen Auflagen nur in den Bereichen der Vorrichtung, in denen ein gegenüber anderen Bereichen erhöhter Druck auftritt, und durch die Verwendung statischer Auflagen nur in Bereichen ohne erhöhten Druck wird somit in vorteilhafter Weise gegenüber bekannten Vorrichtungen einerseits die Geräuschentwicklung reduziert und andererseits der Verschleiß des Strangförderbands verringert.As with viewing the FIGS. 1 to 3 As can be seen overall, the regions 112 and 114 with the plurality of static supports 211, 212 in contrast to the sections 111, 113 with the movable supports 311, 312, 313, 314 relative to the total conveying distance of the inventive device 1. The noise resulting From the movable supports 311, 312, 313, 314 is therefore comparatively small, in particular compared with a device which is fully or to a large extent equipped with movable supports. By the inventive provision of movable supports only in the areas of the device in which an over other areas increased pressure occurs, and by the use static conditions only in areas without increased pressure is thus advantageously reduced over known devices on the one hand, the noise and on the other hand reduces the wear of the strand conveyor belt.

Claims (10)

Vorrichtung zum Fördern eines Stranges der tabakverarbeitenden Industrie in einer Förderrichtung mit einem Strangförderband (100a, 100b, 100c) und mehreren das Strangförderband (100a, 100b, 100c) führenden Führungselementen (211, 212; 311, 312, 313, 314),
dadurch gekennzeichnet, dass die Führungselemente (211, 212; 311, 312, 313, 314) teilweise als statische Auflagen (211, 212) und teilweise als bewegliche Auflagen (311, 312, 313, 314) ausgebildet sind, wobei die beweglichen Auflagen mindestens in einem Bereich (121, 122, 131, 132) der Vorrichtung mit einem gegenüber anderen Bereichen (121, 122, 131, 132) der Vorrichtung erhöhten Druck der Führungselemente (211, 212; 311, 312, 313, 314) auf das Strangförderband (100a, 100b, 100c) angeordnet sind.Apparatus for conveying a strand of the tobacco processing industry in a conveying direction with a strand conveyor belt (100a, 100b, 100c) and a plurality of guide elements (211, 212; 311, 312, 313, 314) guiding the strand conveyor belt (100a, 100b, 100c),
characterized in that the guide elements (211, 212; 311, 312, 313, 314) are formed partly as static supports (211, 212) and partly as movable supports (311, 312, 313, 314), the movable supports being at least in an area (121, 122, 131, 132) of the device, with a pressure of the guide elements (211, 212, 311, 312, 313, 314), which is increased relative to other areas (121, 122, 131, 132) of the device, on the strand conveyor belt (100a, 100b, 100c) are arranged. Vorrichtung nach dem vorhergehenden Anspruch,
dadurch gekennzeichnet, dass die Führungselemente (211, 212; 311, 312, 313, 314) in zumindest zwei Abschnitten angeordnet sind, wobei in einem der beiden Abschnitte das Strangförderband (100a, 100b, 100c) nur durch die beweglichen Auflagen und in dem anderen der beiden Abschnitte nur durch die statischen Auflagen geführt wird, und wobei die Abschnitte derart angeordnet sind, dass das Strangförderband (100a, 100b, 100c) die Abschnitte in Förderrichtung nacheinander passiert.Device according to the preceding claim,
characterized in that the guide elements (211, 212; 311, 312, 313, 314) are arranged in at least two sections, wherein in one of the two sections the strand conveyor belt (100a, 100b, 100c) only by the movable supports and in the other the two sections are guided only by the static constraints, and wherein the sections are arranged such that the strand conveyor belt (100a, 100b, 100c) successively passes the sections in the conveying direction. Vorrichtung nach einem der beiden vorhergehenden Ansprüche,
dadurch gekennzeichnet, dass die beweglichen Auflagen in einem Bereich (121, 122, 131, 132) der Vorrichtung mit einer Änderung der Förderrichtung angeordnet sind.Device according to one of the two preceding claims,
characterized in that the movable supports are arranged in a region (121, 122, 131, 132) of the device with a change of the conveying direction. Vorrichtung nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, dass die beweglichen Auflagen in einem Bereich (121, 122, 131, 132) der Vorrichtung mit einer Anhebung und/oder Absenkung des Strangförderbands (100a, 100b, 100c) im Wesentlichen senkrecht zur Förderrichtung angeordnet sind.Device according to one of the preceding claims,
characterized in that the movable supports in a region (121, 122, 131, 132) of the device with an increase and / or reduction of the strand conveyor belt (100a, 100b, 100c) are arranged substantially perpendicular to the conveying direction. Vorrichtung nach dem vorhergehenden Anspruch,
dadurch gekennzeichnet, dass zumindest eine der beweglichen Auflagen im Wesentlichen senkrecht zur Förderrichtung derart einstellbar ist, um das Strangförderband (100a, 100b, 100c) im Wesentlichen senkrecht zur Förderrichtung anzuheben und/oder abzusenken.Device according to the preceding claim,
characterized in that at least one of the movable supports is adjustable substantially perpendicular to the conveying direction so as to raise and / or lower the strand conveyor belt (100a, 100b, 100c) substantially perpendicular to the conveying direction. Vorrichtung nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, dass die beweglichen Auflagen in einem Bereich (121, 122, 131, 132) der Vorrichtung angeordnet sind, in dem die Vorrichtung ausgebildet ist, einen Strang an eine weitere Fördervorrichtung, vorzugsweise ein Formatband, abzugeben.Device according to one of the preceding claims,
characterized in that the movable supports are arranged in a region (121, 122, 131, 132) of the device, in which the device is designed to deliver a strand to a further conveying device, preferably a format strip. Vorrichtung nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, dass die beweglichen Auflagen in einem Bereich (121, 122, 131, 132) der Vorrichtung angeordnet sind, der in Förderrichtung angrenzend vor einem Bereich (121, 122, 131, 132) der Vorrichtung liegt, in dem die Vorrichtung ausgebildet ist, einen Strang an eine weitere Fördervorrichtung, vorzugsweise ein Formatband, abzugeben.Device according to one of the preceding claims,
characterized in that the movable supports are arranged in a region (121, 122, 131, 132) of the device, which lies in the conveying direction adjacent to a region (121, 122, 131, 132) of the device in which the device is formed to deliver a strand to another conveying device, preferably a format strip. Vorrichtung nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, dass die beweglichen Auflagen in einem Bereich (121, 122, 131, 132) der Vorrichtung angeordnet sind, in dem die Vorrichtung ausgebildet ist, mit einer Überschussabnahmevorrichtung zusammenzuwirken.Device according to one of the preceding claims,
characterized in that the movable supports are arranged in a region (121, 122, 131, 132) of the device in which the device is designed to cooperate with an excess removal device. Vorrichtung nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, dass die beweglichen Auflagen in einem Bereich (121, 122, 131, 132) der Vorrichtung angeordnet sind, der in Förderrichtung angrenzend vor einem Bereich (121, 122, 131, 132) der Vorrichtung liegt, in dem die Vorrichtung ausgebildet ist, mit einer Überschussabnahmevorrichtung zusammenzuwirken.Device according to one of the preceding claims,
characterized in that the movable supports are arranged in a region (121, 122, 131, 132) of the device, which lies in the conveying direction adjacent to a region (121, 122, 131, 132) of the device in which the device is formed to cooperate with an excess collection device. Verfahren zum Fördern eines Stranges der tabakverarbeitenden Industrie mittels eines Strangförderbands (100a, 100b, 100c), umfassend den Schritt: Führen des Strangförderbands (100a, 100b, 100c),
dadurch gekennzeichnet, dass das Führen des Strangförderbands (100a, 100b, 100c) mittels mehrerer Führungselemente (211, 212; 311, 312, 313, 314) erfolgt, die teils als statische Auflagen (211, 212) und teils als bewegliche Auflagen (311, 312, 313, 314) ausgebildet sind, und wobei das Strangförderband (100a, 100b, 100c) mindestens in einem Bereich (121, 122, 131, 132) mit einem gegenüber anderen Bereichen (121, 122, 131, 132) erhöhten Druck der Führungselemente (211, 212; 311, 312, 313, 314) auf das Strangförderband (100a, 100b, 100c) durch die beweglichen Auflagen geführt wird.A method for conveying a strand of the tobacco processing industry by means of a strand conveyor belt (100a, 100b, 100c), comprising the step of: guiding the strand conveyor belt (100a, 100b, 100c),
characterized in that the guiding of the strand conveyor belt (100a, 100b, 100c) takes place by means of a plurality of guide elements (211, 212; 311, 312, 313, 314) which are partly in the form of static supports (211, 212) and partly as movable supports (311 . 312, 313, 314) are formed, and wherein the strand conveyor belt (100a, 100b, 100c) at least in one area (121, 122, 131, 132) with respect to other areas (121, 122, 131, 132) increased pressure of Guide elements (211, 212, 311, 312, 313, 314) on the strand conveyor belt (100a, 100b, 100c) is guided by the movable supports.
EP11176505.3A 2010-08-09 2011-08-04 Device and method for conveying a strand for the tobacco industry Active EP2417861B2 (en)

Priority Applications (1)

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PL11176505.3T PL2417861T5 (en) 2010-08-09 2011-08-04 Device and method for conveying a strand for the tobacco industry

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DE102010039099A DE102010039099A1 (en) 2010-08-09 2010-08-09 Apparatus and method for conveying a strand of the tobacco processing industry

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EP2417861B1 EP2417861B1 (en) 2018-10-10
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Also Published As

Publication number Publication date
CN102372153A (en) 2012-03-14
EP2417861B1 (en) 2018-10-10
DE102010039099A1 (en) 2012-02-09
PL2417861T5 (en) 2023-10-02
CN102372153B (en) 2016-01-20
EP2417861B2 (en) 2023-08-02
PL2417861T3 (en) 2019-04-30

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