EP0582136B1 - Device for removing tobacco particles from a conveyor - Google Patents

Device for removing tobacco particles from a conveyor Download PDF

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Publication number
EP0582136B1
EP0582136B1 EP93111716A EP93111716A EP0582136B1 EP 0582136 B1 EP0582136 B1 EP 0582136B1 EP 93111716 A EP93111716 A EP 93111716A EP 93111716 A EP93111716 A EP 93111716A EP 0582136 B1 EP0582136 B1 EP 0582136B1
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EP
European Patent Office
Prior art keywords
strand
rod
conveyor
polycrystalline diamond
format
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Expired - Lifetime
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EP93111716A
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German (de)
French (fr)
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EP0582136A1 (en
Inventor
Gerhard Hakansson
Guido Quarella
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Koerber Technologies GmbH
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Hauni Maschinenbau GmbH
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    • AHUMAN NECESSITIES
    • A24TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24CMACHINES FOR MAKING CIGARS OR CIGARETTES
    • A24C5/00Making cigarettes; Making tipping materials for, or attaching filters or mouthpieces to, cigars or cigarettes
    • A24C5/14Machines of the continuous-rod type
    • A24C5/18Forming the rod
    • A24C5/1807Forming the rod with compressing means, e.g. garniture

Definitions

  • the invention relates to a device for stripping Tobacco particles from a strand conveyor of a cigarette rod machine when a strand of tobacco is handed over from the strand conveyor in a format device with a base body for insertion into the strand machine in the strand inlet area of the format device and one in a stripping position to the strand conveyor positionable scraper edge.
  • An air-permeable fabric belt is usually used as a strand conveyor used in which by the applied negative pressure or due to the mechanical pressure when compressing the Fiber strand can set tobacco particles from the strand, which is a proper handover of all particles of the strand in hinder format setup.
  • a so-called scraper US-A 3 915 176.
  • This consists of a basic body and has one Scraper edge, which is positioned close to the surface of the strand conveyor and strips the tobacco particles of the strand from the strand conveyor, which also, as in the case of said US-A 3 915 176, can be permeable to air. All particles are on this way to the infeed finger following in the conveying direction and into the format transported.
  • the scraper is subject to an increased mechanical Stress and therefore has a relatively short service life.
  • DE 25 31 448 A1 is known a format of a cigarette rod machine, over the sliding surface a conveyor belt slides in the form of a format belt.
  • the sliding surface is one Numerous curved surfaces of hard, wear-resistant hard material grains as a supporting body educated. This sliding surface has significantly better sliding properties than one smooth and polished sliding surface.
  • the present invention has for its object a device to further improve the type specified at the beginning.
  • the scraper edge at least in her when stripping the tobacco particles with the strand conveyor interacting area by embedding at least one layer of a fine-grained, abrasion-resistant material formed surface of great hardness.
  • abrasion-resistant, fine-grained material comes primarily in accordance with the invention polycrystalline diamond with which the scraper edge is equipped.
  • polycrystalline diamond is very fine-grained To understand diamond chips or diamond particles that are in the surface of the Scraper edge of the scraper are embedded.
  • the scraper edge of the scraper consists of a hard ceramic Material with polycrystalline diamond embedded in its surface.
  • polycrystalline diamond can be applied to the Sintered surface of the scraper edge. So that results a firm and dimensionally stable embedding of the particles of the polycrystalline diamonds that make the device very easy to maintain makes.
  • the base body of the scraper on a strand guide surface which in the Format device in the strand running direction with a strand guide surface of an enema finger is aligned and together with at least one further, opposite strand guide surface a length section of the format device Strand channel forms.
  • the strand guide surface can consist of hard metal or ceramic and also be coated with polycrystalline diamond, to also increase their wear resistance.
  • the invention makes a scraper of high wear resistance provided for the format device of a cigarette rod machine. It is characterized by high durability and long idle times, making them unusable by the exchange scraper caused machine downtime be significantly shortened. This is particularly important for the modern cigarette rod machines of very high performance to further increase the economy of the Machine use at.
  • Figure 1 is the format entry of a cigarette rod machine shown. It shows the discharge end 2 of a suction line conveyor 3 and a format device 4 with a format bed 6, an inlet finger 7 and a format part 8.
  • the suction line conveyor 3 runs in the direction of arrow 11 in a tobacco channel 9 um and conveys a strand of tobacco fibers (not shown) from a strand building zone (also not shown) for delivery to the format device 4.
  • the fiber strand is hanging on the suction line conveyor 3 in the tobacco channel 9 promoted, by means of a by the suction line conveyor through the suction train held on the suction line conveyor becomes.
  • the format bed 6 has a not shown Strand guide surface 12, which is curved in cross section Strand channel forms, the radius of curvature in the direction of travel of the strand from the inlet cone 13 to the format part continuously decreases and the one in accordance with the desired Strand-shaped strand channel 14 of the format part 8 opens.
  • Strand guide surface 12 which is curved in cross section Strand channel forms, the radius of curvature in the direction of travel of the strand from the inlet cone 13 to the format part continuously decreases and the one in accordance with the desired Strand-shaped strand channel 14 of the format part 8 opens.
  • Format tape 17 performed a strip of wrapping material 18 carries through the format device 4. This technique of such Machines are well known, so that a more detailed description and description is not required here.
  • the suction line conveyor converges in the area of the inlet cone 13 3 to the strand guide surface of the format bed 6 and sets those that were shaken up in a strand building zone, not shown and in the usual way equalized tobacco rod on the wrapping material strips 18 moved by the format device 4 on.
  • the tobacco rod is passed through the Inlet cone 13 under the action of the suction line conveyor 3 strongly compressed and according to the change in cross-section of the inlet cone in the conveying direction 16 of the format belt 17 so deformed that it partially in the strand guide surface 12 of the format bed 6 enclosed strand channel can.
  • the inlet fingers 7 arranged with a scraper 17, which together with the strand guide surface 12 of the format bed 6 a fiber effort further compressive and forming strand guide forms.
  • the scraper 17 is suitable by means of screws 18 or other Fasteners on the end of the intake finger 7 Format device 4 attached. It consists of a basic body 19, whose underside is designed as a strand guide surface 21 is and in the installation position of the scraper of the strand guide surface 12 of the format bed 6 is opposite, so that both Strand guide surfaces 12 and 21 a strand guide channel 22 lock in.
  • the strand guide surface 21 is like that Front view of the scraper according to Figure 3 shows concave and is aligned with a strand guide surface 23, which on the Underside of the run-in finger 7 is formed. This training the strand guide surfaces does this in a known manner Deforming the incoming tobacco rod into a cylindrical one Fiber strand with simultaneous wrapping of this fiber strand with the wrapping material strip 18.
  • the detail B shown in Figure 2 shows part of the Format bed 6 and the front inlet end 24 of the scraper 17th At this inlet end 24 of the scraper 17 there is a scraper edge 26 is provided, which is transverse to the direction 11 of the strand conveyor 3 is aligned (see FIG. 3) and close to the Surface of the strand conveyor 3 or positioned adjacent to this is.
  • a scraper edge 26 is provided in the surface of the scraper edge 26 in the surface of the scraper edge 26 consists according to the invention made of polycrystalline diamond and is made in a base Sintered hard metal.
  • the scraper edge 26 can also be made of consist of a hard ceramic material in the surface polycrystalline diamond is embedded.
  • the diamond layer 27 extends on the scraper edge 26 over the entire width of the strand conveyor 3 and takes in this way reliably all tobacco fibers from the strand conveyor 3. Of the The tobacco rod is so very reliable and complete of that Transfer strand conveyor 3 to the wrapping material strip 18.
  • the formation of the scraper edge 26 made of hard metal and their Coating with polycrystalline diamond increases wear resistance the scraper edge to a significant degree and this considerably extends their service life. Through the Extending the replacement intervals is thus simultaneous increases the economy of machine use.

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  • Manufacturing Of Cigar And Cigarette Tobacco (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)

Abstract

A device is described for removing tobacco particles from a strand conveyor (3) of a cigarette strand machine with the transfer of a tobacco strand from the strand conveyor to a formatting device (4), which has a base body (19) for insertion into the strand machine in the strand intake region of the formatting device (4) and a removal edge (26) which can be positioned in a removal position relative to the strand conveyor (3). The removal edge (26) is coated, at least in its region which interacts with the strand conveyor (3) in the removal of the tobacco particles, with a coating (27) of polycrystalline diamond. The coating of the removal device with polycrystalline diamond offers the advantage of a longer service life and, because of longer intervals between replacements of the removal device, an increased cost-effectiveness of the machine. <IMAGE>

Description

Die Erfindung betrifft eine Vorrichtung zum Abstreifen von Tabakpartikeln von einem Strangförderer einer Zigarettenstrangmaschine bei der Übergabe eines Tabakstrangs vom Strangförderer in eine Formateinrichtung mit einem Grundkörper zum Einsetzen in die Strangmaschine im Strangeinlaufbereich der Formateinrichtung und einer in eine Abstreifstellung zum Strangförderer positionierbare Abstreifkante.The invention relates to a device for stripping Tobacco particles from a strand conveyor of a cigarette rod machine when a strand of tobacco is handed over from the strand conveyor in a format device with a base body for insertion into the strand machine in the strand inlet area of the format device and one in a stripping position to the strand conveyor positionable scraper edge.

Zum Herstellen eines Zigarettenstrangs werden gewöhnlich vereinzelte und aufgelockerte Tabakfasern auf einem in einem Tabakkanal umlaufenden Strangförderer zu einem Faserstrang aufgeschauert, der kontinuierlich aus dem Strangaufbaubereich abgefördert und egalisiert wird, bevor er auf einen mit einem umlaufenden Formatband in eine Formateinrichtung bewegten Hüllmaterialstreifen abgelegt und in der Formateinrichtung mit dem Hüllmaterialstreifen, z.B. einem Zigarettenpapierstreifen, umhüllt wird. Der im Einlaufbereich der Formateinrichtung zunächst noch eben einlaufende Hüllmaterialstreifen wird beim Durchgang durch die Formateinrichtung zunächst U-förmig um den Faserstrang geformt, bevor er ganz um den Strang herumgelegt und zur Bildung einer zylindrischen Hülle entlang einer Überlappungsnaht in der Regel durch Verkleben um den Strang herum geschlossen wird.Individuals are usually used to make a cigarette rod and loosened tobacco fibers on one in a tobacco channel revolving strand conveyor piled up to a fiber strand, the continuously from the strand construction area is promoted and equalized before it hits you with one encircling format tape in a format device moving wrapping material strips filed and in the format setup with the Wrapping material strips, e.g. a strip of cigarette paper, is enveloped. The one in the inlet area of the format setup first The wrapping material strip that is just arriving is at the Passage through the format device first U-shaped around the Fiber strand formed before being wrapped all around the strand and to form a cylindrical shell along an overlap seam usually by gluing around the strand is closed.

Als Strangförderer wird gewöhnlich ein luftdurchlässiges Gewebeband eingesetzt, in dem sich durch den angelegten Unterdruck oder infolge des mechanischen Drucks beim Komprimieren des Faserstrangs Tabakpartikel aus dem Strang festsetzen können, die eine ordnungsgemäße Übergabe aller Teilchen des Strangs in die Formateinrichtung behindern. Um sicherzustellen, daß alle Teilchen des Strangs, auch solche, die sich am Strangförderer festgesetzt haben, in die Formateinrichtung abgegeben werden, weist diese an ihrem Einlaufende eine Vorrichtung zum Abstreifen von Tabakteilchen, einen sogenannten Schaber, auf (US-A 3 915 176). Dieser besteht aus einem Grundkörper und weist eine Abstreifkante auf, die dicht an der Oberfläche des Strangförderers positioniert ist und die Tabakteilchen des Strangs vom Strangförderer abstreift, der auch, wie im Falle der genannten US-A 3 915 176, luftdurchlässig sein kann. Alle Teilchen werden auf diese Weise zum in Förderrichtung folgenden Einlauffinger und in das Format transportiert. Der Schaber unterliegt dabei einer erhöhten mechanischen Beanspruchung und hat daher eine relativ kurze Standzeit. Durch die DE 25 31 448 A1 ist ein Format einer Zigarettenstrangmaschine bekannt, über dessen Gleitfläche ein Förderband in Form eines Formatbandes gleitet. Die Gleitfläche wird von einer Vielzahl gewölbter Flächen harter, verschleißfester Hartstoffkörner als Tragkörper gebildet. Diese Gleitfläche weist erheblich bessere Gleiteigenschaften auf als eine glatte und polierte Gleitfläche. Über die Probleme der Abnahme von Tabakteilchen von einem Förderband macht diese Schrift allerdings keine Aussage.An air-permeable fabric belt is usually used as a strand conveyor used in which by the applied negative pressure or due to the mechanical pressure when compressing the Fiber strand can set tobacco particles from the strand, which is a proper handover of all particles of the strand in hinder format setup. To make sure everyone Particles of the strand, including those that have attached themselves to the strand conveyor, in the format device are delivered, it has one at its inlet end Device for stripping tobacco particles, a so-called scraper (US-A 3 915 176). This consists of a basic body and has one Scraper edge, which is positioned close to the surface of the strand conveyor and strips the tobacco particles of the strand from the strand conveyor, which also, as in the case of said US-A 3 915 176, can be permeable to air. All particles are on this way to the infeed finger following in the conveying direction and into the format transported. The scraper is subject to an increased mechanical Stress and therefore has a relatively short service life. Through DE 25 31 448 A1 is known a format of a cigarette rod machine, over the sliding surface a conveyor belt slides in the form of a format belt. The sliding surface is one Numerous curved surfaces of hard, wear-resistant hard material grains as a supporting body educated. This sliding surface has significantly better sliding properties than one smooth and polished sliding surface. On the problems of taking off tobacco particles However, this document makes no statement about a conveyor belt.

Der vorliegenden Erfindung liegt die Aufgabe zugrunde eine Vorrichtung der eingangs angegebenen Art weiter zu verbessern.The present invention has for its object a device to further improve the type specified at the beginning.

Gelöst wird diese Aufgabe erfindungsgemäß dadurch, daß die Abstreifkante wenigstens in ihrem beim Abstreifen der Tabakpartikel mit dem Strangförderer zusammenwirkenden Bereich eine durch Einbettung wenigstens einer Schicht eines feinkörnigen, abriebfesten Materials gebildete Oberfläche großer Härte aufweist. Als abriebfestes, feinkörniges Material kommt in erster Linie gemäß der Erfindung polykristalliner Diamant infrage, mit dem die Abstreifkante bestückt ist. Unter polykristallinem Diamant sind in diesem Zusammenhang sehr feinkörnige Diamantsplitter bzw. Diamantteilchen zu verstehen, die in die Oberfläche der Abstreifkante des Schabers eingebettet sind. Gemäß einer bevorzugten Variante besteht wenigstens die Abstreifkante des Schabers aus Hartmetall und ist mit polykristallinem Diamant beschichtet. Gemäß einer anderen Ausführungsform der Erfindung besteht die Abstreifkante des Schabers aus einem harten keramischen Material, in dessen Oberfläche polykristalliner Diamant eingebettet ist. Der polykristalline Diamant kann gemäß einer Weiterbildung der Erfindung an der Oberfläche der Abstreifkante aufgesintert sein. Damit ergibt sich eine feste und formstabile Einbettung der Teilchen des polykristallinen Diamanten, die die Vorrichtung sehr wartungsfreundlich macht.This object is achieved according to the invention in that the scraper edge at least in her when stripping the tobacco particles with the strand conveyor interacting area by embedding at least one layer of a fine-grained, abrasion-resistant material formed surface of great hardness. As abrasion-resistant, fine-grained material comes primarily in accordance with the invention polycrystalline diamond with which the scraper edge is equipped. Under In this context, polycrystalline diamond is very fine-grained To understand diamond chips or diamond particles that are in the surface of the Scraper edge of the scraper are embedded. According to a preferred variant there is at least the scraper edge of the scraper made of hard metal and is with coated with polycrystalline diamond. According to another embodiment of the Invention, the scraper edge of the scraper consists of a hard ceramic Material with polycrystalline diamond embedded in its surface. Of the polycrystalline According to a further development of the invention, diamond can be applied to the Sintered surface of the scraper edge. So that results a firm and dimensionally stable embedding of the particles of the polycrystalline diamonds that make the device very easy to maintain makes.

Gemäß einer weiteren Ausbildung der Erfindung weist der Grundkörper des Schabers eine Strangführungsfläche auf, die in der Formateinrichtung in Stranglaufrichtung mit einer Strangführungsfläche eines Einlauffingers fluchtet und zusammen mit wenigstens einer weiteren, gegenüber verlaufenden Strangführungsfläche der Formateinrichtung einen Längenabschnitt eines Strangkanals bildet. Damit ist sichergestellt, daß die mittels der Abstreifkante von dem Strangförderer abgenommenen Tabakteilchen entlang der Strangführungsfläche des Grundkörpers sicher und störungsfrei in die Formateinrichtung gelangen. Die Strangführungsfläche kann aus Hartmetall oder Keramik bestehen und ebenfalls mit polykristallinem Diamant beschichtet sein, um auch ihre Verschleißfestigkeit zu erhöhen.According to a further embodiment of the invention, the base body of the scraper on a strand guide surface, which in the Format device in the strand running direction with a strand guide surface of an enema finger is aligned and together with at least one further, opposite strand guide surface a length section of the format device Strand channel forms. This ensures that the means the scraper edge of tobacco particles removed from the strand conveyor along the strand guide surface of the base body get into the format setup safely and without problems. The The strand guide surface can consist of hard metal or ceramic and also be coated with polycrystalline diamond, to also increase their wear resistance.

Durch die Erfindung wird ein Schaber hoher Verschleißfestigkeit für die Formateinrichtung einer Zigarettenstrangmaschine bereitgestellt. Er zeichnet sich durch hohe Dauerbelastbarkeit und lange Standzeiten aus, so daß die durch den Austausch unbrauchbar gewordener Schaber verursachten Maschinenausfallzeiten erheblich verkürzt werden. Das trägt insbesondere bei den modernen Zigarettenstrangmaschinen sehr hoher Leistungsfähigkeit zu einer weiteren Erhöhung der Wirtschaftlichkeit der Maschinennutzung bei. The invention makes a scraper of high wear resistance provided for the format device of a cigarette rod machine. It is characterized by high durability and long idle times, making them unusable by the exchange scraper caused machine downtime be significantly shortened. This is particularly important for the modern cigarette rod machines of very high performance to further increase the economy of the Machine use at.

Die Erfindung wird nun anhand der Zeichnung näher erläutert.The invention will now be explained in more detail with reference to the drawing.

Es zeigen

Figur 1
einen Längsschnitt durch den Formateinlauf einer Zigarettenstrangmaschine in einer schematischen Darstellung,
Figur 2
eine vergrößerte Darstellung der Einzelheit B in Figur 1 und
Figur 3
eine Vorderansicht der Abstreifvorrichtung nach der Erfindung etwa in Richtung des Pfeiles C in Figur 1.
Show it
Figure 1
2 shows a longitudinal section through the format inlet of a cigarette rod making machine in a schematic illustration,
Figure 2
an enlarged view of the detail B in Figure 1 and
Figure 3
a front view of the stripping device according to the invention approximately in the direction of arrow C in Figure 1.

In Figur 1 ist der Formateinlauf einer Zigarettenstrangmaschine dargestellt. Sie zeigt das Abgabeende 2 eines Saugstrangförderers 3 und eine Formateinrichtung 4 mit einem Formatbett 6, einem Einlauffinger 7 und einem Formatteil 8. Der Saugstrangförderer 3 läuft in Pfeilrichtung 11 in einem Tabakkanal 9 um und fördert einen Faserstrang aus Tabakfasern (nicht dargestellt) von einer Strangaufbauzone (ebenfalls nicht dargestellt) zur Abgabe an die Formateinrichtung 4. Der Faserstrang wird hängend am Saugstrangförderer 3 im Tabakkanal 9 gefördert, wobei er mittels eines durch den Saugstrangförderer hindurchwirkenden Saugzugs am Saugstrangförderer gehalten wird. Das Formatbett 6 weist eine nicht näher dargestellte Strangführungsfläche 12 auf, die einen im Querschnitt gewölbten Strangkanal bildet, dessen Wölbungsradius in Laufrichtung des Strangs vom Einlaufkonus 13 zum Formatteil hin kontinuierlich abnimmt und der in einen entsprechend der gewünschten Strangform ausgebildeten Strangkanal 14 des Formatteils 8 mündet. Im Einlaufkonus 13, entlang der Strangführungsfläche 12 und in dem Strangkanal 14 ist ein in Pfeilrichtung 16 umlaufendes Formatband 17 geführt, das einen Hüllmaterialstreifen 18 durch die Formateinrichtung 4 trägt. Diese Technik derartiger Maschinen ist hinlänglich bekannt, so daß eine nähere Darstellung und Beschreibung hier nicht erforderlich ist.In Figure 1 is the format entry of a cigarette rod machine shown. It shows the discharge end 2 of a suction line conveyor 3 and a format device 4 with a format bed 6, an inlet finger 7 and a format part 8. The suction line conveyor 3 runs in the direction of arrow 11 in a tobacco channel 9 um and conveys a strand of tobacco fibers (not shown) from a strand building zone (also not shown) for delivery to the format device 4. The fiber strand is hanging on the suction line conveyor 3 in the tobacco channel 9 promoted, by means of a by the suction line conveyor through the suction train held on the suction line conveyor becomes. The format bed 6 has a not shown Strand guide surface 12, which is curved in cross section Strand channel forms, the radius of curvature in the direction of travel of the strand from the inlet cone 13 to the format part continuously decreases and the one in accordance with the desired Strand-shaped strand channel 14 of the format part 8 opens. In the inlet cone 13, along the strand guide surface 12 and in the strand channel 14 is a revolving one in the direction of arrow 16 Format tape 17 performed a strip of wrapping material 18 carries through the format device 4. This technique of such Machines are well known, so that a more detailed description and description is not required here.

Im Bereich des Einlaufkonus 13 konvergiert der Saugstrangförderer 3 zur Strangführungsfläche des Formatbetts 6 und legt den in einer nicht dargestellten Strangaufbauzone aufgeschauerten und in üblicher Weise egalisierten Tabakstrang auf den durch die Formateinrichtung 4 bewegten Hüllmaterialstreifen 18 auf. Dabei wird der Tabakstrang bei seiner Passage durch den Einlaufkonus 13 unter der Wirkung des Saugstrangförderers 3 stark komprimiert und entsprechend der Querschnittsveränderung des Einlaufkonus in Förderrichtung 16 des Formatbandes 17 so verformt, daß er in den teilweise von der Strangführungsfläche 12 des Formatbettes 6 umschlossenen Strangkanal einlaufen kann. Im Bereich der Strangführungsfläche 12 ist dem Formatbett 6 benachbart als weiteres Strangführungsmittel der Einlauffinger 7 mit einem Schaber 17 angeordnet, der zusammen mit der Strangführungsfläche 12 des Formatbettes 6 eine den Faserstreng weiter komprimierende und formende Strangführung bildet.The suction line conveyor converges in the area of the inlet cone 13 3 to the strand guide surface of the format bed 6 and sets those that were shaken up in a strand building zone, not shown and in the usual way equalized tobacco rod on the wrapping material strips 18 moved by the format device 4 on. The tobacco rod is passed through the Inlet cone 13 under the action of the suction line conveyor 3 strongly compressed and according to the change in cross-section of the inlet cone in the conveying direction 16 of the format belt 17 so deformed that it partially in the strand guide surface 12 of the format bed 6 enclosed strand channel can. In the area of the strand guide surface 12 is the format bed 6 adjacent as a further strand guiding means the inlet fingers 7 arranged with a scraper 17, which together with the strand guide surface 12 of the format bed 6 a fiber effort further compressive and forming strand guide forms.

Der Schaber 17 ist mittels Schrauben 18 oder anderer geeigneter Befestigungsmittel stirnseitig am Einlauffinger 7 der Formateinrichtung 4 befestigt. Er besteht aus einem Grundkörper 19, dessen Unterseite als Strangführungsfläche 21 ausgebildet ist und in Einbauposition des Schabers der Strangführungsfläche 12 des Formatbettes 6 gegenüberliegt, so daß beide Strangführungsflächen 12 und 21 einen Strangführungskanal 22 einschließen. Die Strangführungsfläche 21 ist dazu, wie die Vorderansicht des Schabers gemäß Figur 3 zeigt, konkav gewölbt und fluchtet mit einer Strangführungsfläche 23, die an der Unterseite des Einlauffingers 7 ausgebildet ist. Diese Ausbildung der Strangführungsflächen bewirkt in bekannter Weise das Verformen des ankommenden Tabakstrangs zu einem zylindrischen Faserstrang bei gleichzeitiger Umhüllung dieses Faserstrangs mit dem Hüllmaterialstreifen 18.The scraper 17 is suitable by means of screws 18 or other Fasteners on the end of the intake finger 7 Format device 4 attached. It consists of a basic body 19, whose underside is designed as a strand guide surface 21 is and in the installation position of the scraper of the strand guide surface 12 of the format bed 6 is opposite, so that both Strand guide surfaces 12 and 21 a strand guide channel 22 lock in. The strand guide surface 21 is like that Front view of the scraper according to Figure 3 shows concave and is aligned with a strand guide surface 23, which on the Underside of the run-in finger 7 is formed. This training the strand guide surfaces does this in a known manner Deforming the incoming tobacco rod into a cylindrical one Fiber strand with simultaneous wrapping of this fiber strand with the wrapping material strip 18.

Die in Figur 2 dargestellte Einzelheit B zeigt einen Teil des Formatbettes 6 und das vordere Einlaufende 24 des Schabers 17. An diesem Einlaufende 24 des Schabers 17 ist eine Abstreifkante 26 vorgesehen, die quer zur Laufrichtung 11 des Strangförderers 3 ausgerichtet ist (vgl. Figur 3) und dicht vor der Oberfläche des Strangförderers 3 oder an dieser anliegend positioniert ist. In die Oberfläche der Abstreifkante 26 ist wenigstens eine Schicht 27 eines feinkörnigen abreibfesten Materials eingebettet. Diese Schicht 27 besteht erfindungsgemäß aus polykristallinem Diamant und ist in eine Unterlage aus Hartmetell eingesintert. Die Abstreifkante 26 kann auch aus einem harten keramischen Material bestehen, in dessen Oberfläche polykristalliner Diamant eingebettet ist. Die Diamantschicht 27 erstreckt sich an der Abstreifkante 26 über die ganze Breite des Strangförderers 3 und nimmt auf diese Weise zuverlässig alle Tabakfasern von dem Strangförderer 3 ab. Der Tabakstrang wird so sehr zuverlässig und vollständig von dem Strangförderer 3 auf den Hüllmaterialstreifen 18 übergeben. Die Ausbildung der Abstreifkante 26 aus Hartmetall und ihre Beschichtung mit polykristallinem Diamant erhöht die Verschleißfestigkeit der Abstreifkante in signifikantem Maße und verlängert dadurch deren Standzeit beträchtlich. Durch die Verlängerung der Austauschintervalle wird somit gleichzeitig die Wirtschaftlichkeit der Maschinennutzung erhöht.The detail B shown in Figure 2 shows part of the Format bed 6 and the front inlet end 24 of the scraper 17th At this inlet end 24 of the scraper 17 there is a scraper edge 26 is provided, which is transverse to the direction 11 of the strand conveyor 3 is aligned (see FIG. 3) and close to the Surface of the strand conveyor 3 or positioned adjacent to this is. In the surface of the scraper edge 26 is at least one layer 27 of a fine-grained, abrasion-resistant Material embedded. This layer 27 consists according to the invention made of polycrystalline diamond and is made in a base Sintered hard metal. The scraper edge 26 can also be made of consist of a hard ceramic material in the surface polycrystalline diamond is embedded. The diamond layer 27 extends on the scraper edge 26 over the entire width of the strand conveyor 3 and takes in this way reliably all tobacco fibers from the strand conveyor 3. Of the The tobacco rod is so very reliable and complete of that Transfer strand conveyor 3 to the wrapping material strip 18. The formation of the scraper edge 26 made of hard metal and their Coating with polycrystalline diamond increases wear resistance the scraper edge to a significant degree and this considerably extends their service life. Through the Extending the replacement intervals is thus simultaneous increases the economy of machine use.

Claims (7)

  1. A device for scraping tobacco particles off a rod conveyor (3) of a cigarette making machine when a tobacco rod is transferred from the rod conveyor (3) into a garniture assembly (4), having a base body (19) for insertion into the cigarette making machine in the rod entry region of the garniture assembly (4), and a scraping edge (26) which may be positioned in a scraping position with respect to the rod conveyor (3), characterized in that the scraping edge (26) has, at least in its region cooperating with the rod conveyor (3) when the tobacco particles are scraped off, a very hard surface (27) formed by embedding at least one layer (27) of a fine-grained, abrasion-resistant material therein.
  2. A device according to Claim 1, characterized in that the scraping edge (26) is tipped with polycrystalline diamond.
  3. A device according to Claim 1 or 2, characterized in that the scraping edge (26) is made of hard metal and is coated with polycrystalline diamond.
  4. A device according to one of Claims 1 to 3, characterized in that the scraping edge (26) is made of a hard ceramic material in the surface whereof polycrystalline diamond is embedded.
  5. A device according to one of claims 1 to 4, characterized in that polycrystalline diamond particles are sintered on the surface of the scraping edge (26).
  6. A device according to one of Claims 1 to 5, characterized in that the base body (19) has a rod-guiding face (21) which, in the garniture assembly (4), is in alignment with a rod-guiding face (23) of an entry finger (7) in the running direction (11) of the rod, and forms a longitudinal portion of a rod channel (22) in conjunction with at least one further, opposing, rod-guiding face (12) of the garniture assembly (4, 6).
  7. A device according to Claim 6, characterized in that at least one layer of polycrystalline diamond is embedded in the rod-guiding face (21).
EP93111716A 1992-08-03 1993-07-22 Device for removing tobacco particles from a conveyor Expired - Lifetime EP0582136B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4225644A DE4225644A1 (en) 1992-08-03 1992-08-03 Device for stripping tobacco particles from a conveyor
DE4225644 1992-08-03

Publications (2)

Publication Number Publication Date
EP0582136A1 EP0582136A1 (en) 1994-02-09
EP0582136B1 true EP0582136B1 (en) 1999-11-17

Family

ID=6464749

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93111716A Expired - Lifetime EP0582136B1 (en) 1992-08-03 1993-07-22 Device for removing tobacco particles from a conveyor

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Country Link
EP (1) EP0582136B1 (en)
AT (1) ATE186627T1 (en)
DE (2) DE4225644A1 (en)
ES (1) ES2140426T3 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1330960A1 (en) * 2002-01-24 2003-07-30 Hauni Maschinenbau AG Intake finger for a formatting device
EP3320788A1 (en) * 2016-11-11 2018-05-16 Hauni Maschinenbau GmbH Machine for producing rod-shaped products for the tobacco processing industry and related forming set

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3394986B2 (en) * 1996-04-26 2003-04-07 日本たばこ産業株式会社 Chopped tobacco layer compression molding machine for cigarette making machine
GB9626619D0 (en) * 1996-12-20 1997-02-05 Molins Plc Cigarette making machine
DE102004039325A1 (en) * 2004-08-12 2006-02-23 Hauni Maschinenbau Ag Delivery of strand material
EP1820826A1 (en) * 2006-02-09 2007-08-22 DyStar Textilfarben GmbH &amp; Co. Deutschland KG Dyestuffs and Hair Dye Compositions
DE102008005185A1 (en) 2008-01-18 2009-07-30 Hauni Maschinenbau Aktiengesellschaft Device for transporting tow
IT201700017823A1 (en) * 2017-02-17 2018-08-17 Gd Spa Machine for producing at least one continuous silkworm of filter material or tobacco.

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2232892A1 (en) * 1972-07-05 1974-01-24 Hauni Werke Koerber & Co Kg DEVICE FOR ENCLOSING AN ENDLESS RAND OF TOBACCO
DE2531488A1 (en) * 1975-07-15 1977-02-03 Hauni Werke Koerber & Co Kg Guides for cigarette former - have diamond particles bonded to curved trough faces
GB8408607D0 (en) * 1984-04-04 1984-05-16 Molins Plc Cigarette making machine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1330960A1 (en) * 2002-01-24 2003-07-30 Hauni Maschinenbau AG Intake finger for a formatting device
EP3320788A1 (en) * 2016-11-11 2018-05-16 Hauni Maschinenbau GmbH Machine for producing rod-shaped products for the tobacco processing industry and related forming set
DE102016121618A1 (en) * 2016-11-11 2018-05-17 Hauni Maschinenbau Gmbh Strand making machine for the manufacture of tobacco industry products and associated garniture

Also Published As

Publication number Publication date
ES2140426T3 (en) 2000-03-01
DE59309875D1 (en) 1999-12-23
ATE186627T1 (en) 1999-12-15
DE4225644A1 (en) 1994-02-10
EP0582136A1 (en) 1994-02-09

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