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EP3069618B1 - Suction belt - Google Patents

Suction belt Download PDF

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Publication number
EP3069618B1
EP3069618B1 EP15160004.6A EP15160004A EP3069618B1 EP 3069618 B1 EP3069618 B1 EP 3069618B1 EP 15160004 A EP15160004 A EP 15160004A EP 3069618 B1 EP3069618 B1 EP 3069618B1
Authority
EP
European Patent Office
Prior art keywords
belt
suction
suction belt
top side
underside
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.)
Active
Application number
EP15160004.6A
Other languages
German (de)
French (fr)
Other versions
EP3069618A1 (en
Inventor
Frank Bez
Andreas Wagner
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.)
Max Schlatterer GmbH and Co KG
Original Assignee
Max Schlatterer GmbH and Co KG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Max Schlatterer GmbH and Co KG filed Critical Max Schlatterer GmbH and Co KG
Priority to HUE15160004A priority Critical patent/HUE034451T2/en
Priority to PT151600046T priority patent/PT3069618T/en
Priority to EP15160004.6A priority patent/EP3069618B1/en
Priority to PL15160004T priority patent/PL3069618T3/en
Priority to PCT/EP2016/053712 priority patent/WO2016150635A1/en
Publication of EP3069618A1 publication Critical patent/EP3069618A1/en
Application granted granted Critical
Publication of EP3069618B1 publication Critical patent/EP3069618B1/en
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Anticipated expiration legal-status Critical

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Classifications

    • 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 suction belt for transporting tobacco fibers with a band top side and a band underside opposite the top side of the band. Furthermore, the invention relates to a method for producing an endless suction belt and a Saugstrangumbleer for a cigarette manufacturing machine.
  • a generic suction belt is out of DE 199 09 031 A1 known.
  • the two opposite surfaces of the suction belt have different roughness, whereby an improved entrainment of the tobacco fibers on the one hand and a better drive of the suction belt should be given by the one with the same engaged drive gears of the Saugstrangenseers on the other.
  • suction belts are for example in the DE 10 2011 006 803 B4 , of the DE 10 2012 211 069 B4 or the DE 10 2012 223 074 A1 described.
  • suction belt according to the DE 10 2012 211 069 B4 On one side of the suction band Einlegefäden provided, which have protruding from the plane of the suction belt protrusions, which are used to transport the tobacco fibers. In these suction belts, the problem described above with regard to wear is also given.
  • the wear acting on the respective side of the band ie the top of the band or the underside of the band, is evenly distributed on both sides of the band or the above-described imbalance with regard to the wear of the tobacco fibers facing side of the suction belt and the tobacco fibers lifted away from the same side, so that the suction belt is exposed to a more uniform wear and therefore may have a longer life, since no longer as previously only one side facing the tobacco fibers and the other side facing away from the tobacco fibers.
  • the suction belt is made by connecting the opposite ends of an elongate strip semifinished product to an endless belt, wherein the connecting the ends of the band top is connected to the band underside and the band underside with the band top.
  • the band upper side and the lower band side of the suction band according to the invention change with each revolution and thus each band side alternately comes into contact with the tobacco fibers and with the negative pressure, it can be very advantageous if the band upper side and the band lower side have a substantially identical roughness.
  • Such a symmetrical design of the suction band represents a departure from the prior art, according to which it was considered necessary that the side facing the tobacco fibers must have a certain roughness in order to be suitable for transporting the tobacco fibers.
  • this roughness is not necessarily required, since only the applied on the opposite side of the tobacco fibers vacuum is able to hold the tobacco fibers on the suction belt.
  • the twist of the upper side of the tape against the underside of the tape around the circumference of the suction belt can also be used with asymmetrical suction belts in terms of their roughness, i. that the upper side of the tape and the underside of the tape have a different roughness.
  • a method for producing a suction belt according to the invention is specified in claim 5.
  • the strip semifinished product is rotated once along its longitudinal axis by 180 °, it may be useful in certain embodiments of the invention, for example, if it is a very long suction belt, if prior to joining the two ends of the tape top and the lower side of the belt are rotated by an odd multiple of 180 ° along the longitudinal direction of the strip semifinished against each other.
  • the two ends of the strip semifinished product are connected by means of ultrasonic welding. It is a very simple and process-safe way to produce the endless suction belt from the elongated strip semi-finished product.
  • the two ends of the strip semifinished product are connected by means of laser welding.
  • laser welding By means of laser welding, a secure connection of the two ends of the strip semifinished product can be created.
  • a Saugstrang fiter for a cigarette making machine, in which a suction belt according to the invention is used, is specified in claim 9.
  • Such a Saugstrang reduceer makes use of the above-mentioned advantages of the suction belt according to the invention and can be used over a longer period without interruption due to the longer life of the suction belt.
  • Fig. 1 shows a Saugstrang considerer 1 for a cigarette manufacturing machine, not shown in its entirety.
  • the Saugstrang considerer 1 has in a conventional manner a direction indicated by a dashed line vacuum chamber 2, in which a vacuum or a vacuum prevails, sucked with the tobacco fibers 3 to a running in the vacuum chamber 2 suction belt 4 become.
  • the suction belt 4 revolves around a plurality of rollers of the suction belt conveyor 1, wherein in the present case in addition to at least one, in the illustrated embodiment, two drive rollers 5, a plurality of deflection rollers 6 are provided, around which the suction belt 4 rotates.
  • the structure of the Saugstrang considerers 1 is to be regarded as purely exemplary. With the exception of the suction belt 4 and its positioning within the Saugstrang considerers 1 there is no difference to known Saugstrang considerern.
  • a so-called sword 7 is provided, with which the suction belt 4 is in contact on the side opposite to the side of the suction belt 4 in contact with the tobacco fibers 3.
  • dashed lines are in Fig. 1 also shown a plurality of rollers 8, which may be provided as an alternative to the sword 7 and where the suction belt 4 rests in such an embodiment instead of the sword 7.
  • the sword 7 or the rollers 8 is provided.
  • the transport of the tobacco fibers 3 takes place in that the tobacco fibers 3 in a so-called Aufschauer Society, which is located below the sword 7 and the rollers 8, sucked to the suction belt 4 and transported by the movement in the direction indicated by "x" direction.
  • the release of the tobacco fibers 3 from the suction belt 4 takes place in a conventional manner.
  • Fig. 2 is the suction belt 4 off Fig. 1 shown in perspective.
  • the suction belt 4 is an endless suction belt, which preferably consists of a in Fig. 3 shown elongated strip semifinished product 9 was produced.
  • the elongate strip semifinished product 9 has two ends 10 and 11, which are joined together to form the suction belt 4.
  • the suction belt according to the DE 10 2011 006 803 B4 which has also been formed by connecting the two ends of a semifinished product to an endless suction belt, is used in the manufacture of the suction belt 4 prior to joining the two ends 10 and 11 thereof, the strip semi-finished product 9 along its longitudinal axis 12 at least once rotated by 180 °.
  • finished suction belt 4 a tape top 13 around the circumference of the suction belt 4 at least once against a band upper side 13 opposite lower belt side 14 is rotated.
  • the band top side 13 is connected to the band lower side 14 and the band lower side 14 to the band top side 13 of the respective end.
  • the joining of the two ends 10 and 11 of the strip semi-finished product 9 can be done for example by means of ultrasonic welding or by laser welding.
  • strip semifinished product 9 before joining the two ends 10 and 11 is rotated only once by 180 °, can also be provided that the strip semi-finished product 9 is rotated by an odd multiple of 180 ° along the longitudinal axis 12.

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  • Manufacturing Of Cigar And Cigarette Tobacco (AREA)
  • Belt Conveyors (AREA)

Description

Die Erfindung betrifft ein Saugband zum Transport von Tabakfasern mit einer Bandoberseite und einer der Bandoberseite gegenüberliegenden Bandunterseite. Des Weiteren betrifft die Erfindung ein Verfahren zur Herstellung eines endlosen Saugbands sowie einen Saugstrangförderer für eine Zigarettenherstellungsmaschine.The invention relates to a suction belt for transporting tobacco fibers with a band top side and a band underside opposite the top side of the band. Furthermore, the invention relates to a method for producing an endless suction belt and a Saugstrangförderer for a cigarette manufacturing machine.

Ein gattungsgemäßes Saugband ist aus der DE 199 09 031 A1 bekannt. Die beiden einander gegenüberliegenden Oberflächen des Saugbands weisen unterschiedliche Rauigkeiten auf, wodurch eine verbesserte Mitnahme der Tabakfasern einerseits und ein besserer Antrieb des Saugbands durch die sich mit demselben in Eingriff befindenden Antriebszahnräder des Saugstrangförderers andererseits gegeben sein soll.A generic suction belt is out of DE 199 09 031 A1 known. The two opposite surfaces of the suction belt have different roughness, whereby an improved entrainment of the tobacco fibers on the one hand and a better drive of the suction belt should be given by the one with the same engaged drive gears of the Saugstrangförderers on the other.

Durch eine entsprechende Gestaltung der Oberfläche des Saugbands wird also versucht, eine Art formschlüssige Mitnahme des Saugbands durch die Antriebsräder zu erreichen. Aufgrund von Fertigungstoleranzen und der durch die Bandspannung verursachten Dehnung des Saugbands passt die Struktur der Oberfläche des Saugbands jedoch in der Regel nicht exakt mit der Struktur der Antriebsscheiben zusammen. Dadurch entsteht zwischen den Antriebsscheiben und dem Saugband Schlupf, insbesondere wenn das Saugband an den Eingriffspunkten der Struktur der Antriebsscheibe ausgerieben bzw. verschlissen, ist.By an appropriate design of the surface of the suction belt is thus trying to achieve a kind of positive entrainment of the suction belt by the drive wheels. However, due to manufacturing tolerances and the elongation of the suction belt caused by the belt tension, the structure of the surface of the suction belt usually does not exactly match the structure of the drive disks. As a result, slip occurs between the drive disks and the suction belt, in particular when the suction belt is worn or worn out at the points of engagement of the structure of the drive disk.

Je nach Ausführung des dem Saugband benachbarten Saugkanals im Bereich der Rollen oder des Schwerts, die alternativ zur Unterstützung des Saugbands im Aufschauerbereich der Tabakfasern in der Vakuumzone dienen und an denen das Saugband anliegt, ergibt sich ein weiterer Verschleißbereich des Saugbands. Abhängig von der Intensität der durch das Vakuum bzw. den Unterdruck erzeugten Kräfte kommt es an den Punkten, an denen das Saugband an dem Saugkanal anliegt, reibungsbedingt zu einem gewissen Verschleiß des Saugbands.Depending on the design of the suction channel adjacent to the suction channel in the region of the rollers or the sword, which serve alternatively to support the suction belt in the Aufschauerbereich the tobacco fibers in the vacuum zone and where the suction belt is applied, there is a further wear region of the suction belt. Depending on the intensity of the forces generated by the vacuum or the negative pressure, it comes at the points where the suction belt is applied to the suction channel, due to friction to a certain wear of the suction belt.

Wenn in bestimmten Konstellationen durch das Vakuum angesaugte Tabakfasern in der porösen Struktur des Saugbands eingeklemmt werden und somit hängenbleiben, ergibt sich eine weitere, von den oben genannten Verschleißarten unterschiedliche Art des Verschleißes des Saugbands.If, in certain constellations, tobacco fibers sucked by the vacuum are trapped in the porous structure of the suction belt and thus get stuck, another type of wear of the suction belt, different from the abovementioned types of wear, results.

Die Kombination der oben genannten Umstände führt in ihrer Gesamtheit zu einer vergleichsweise kurzen Lebensdauer des Saugbands.The combination of the above-mentioned circumstances as a whole leads to a comparatively short life of the suction belt.

Weitere gattungsgemäße Saugbänder sind beispielsweise in der DE 10 2011 006 803 B4 , der DE 10 2012 211 069 B4 oder der DE 10 2012 223 074 A1 beschrieben. Beispielsweise sind bei dem Saugband gemäß der DE 10 2012 211 069 B4 auf einer Seite des Saugbands Einlegefäden vorgesehen, die aus der Ebene des Saugbands überstehende Vorsprünge aufweisen, die zum Transport der Tabakfasern eingesetzt werden. Bei diesen Saugbändern ist ebenfalls die oben beschriebene Problematik hinsichtlich des Verschleißes gegeben.Other generic suction belts are for example in the DE 10 2011 006 803 B4 , of the DE 10 2012 211 069 B4 or the DE 10 2012 223 074 A1 described. For example, in the suction belt according to the DE 10 2012 211 069 B4 On one side of the suction band Einlegefäden provided, which have protruding from the plane of the suction belt protrusions, which are used to transport the tobacco fibers. In these suction belts, the problem described above with regard to wear is also given.

Es ist daher Aufgabe der vorliegenden Erfindung, ein Saugband zum Transport von Tabakfasern sowie ein Verfahren zu dessen Herstellung zu schaffen, das gegenüber bekannten Saugbändern eine größere Lebensdauer ermöglicht.It is therefore an object of the present invention to provide a suction belt for transporting tobacco fibers and a method for its production, which compared to known suction belts allows a longer life.

Erfindungsgemäß wird diese Aufgabe durch die in Anspruch 1 genannten Merkmale gelöst.According to the invention, this object is achieved by the features mentioned in claim 1.

Durch die erfindungsgemäße Verdrehung der Bandoberseite gegenüber der Bandunterseite des Saugbands ergibt sich eine automatische Drehung des Saugbands nach jedem Umlauf desselben, d.h. es wechselt bei jedem Umlauf des Saugbands um die Antriebs- und gegebenenfalls Umlenkscheiben eines Saugstrangförderers die Bandoberseite mit der Bandunterseite. Dadurch wird der auf die jeweilige Seite des Bands, also die Bandoberseite oder die Bandunterseite, wirkende Verschleiß gleichmäßig auf beide Seiten des Bands verteilt bzw. es wird das oben beschriebene Ungleichgewicht hinsichtlich des Verschleißes der den Tabakfasern zugewandten Seite des Saugbands und der den Tabakfasern abgewandten Seite desselben aufgehoben, so dass das Saugband einem gleichmäßigeren Verschleiß ausgesetzt ist und daher eine größere Lebensdauer aufweisen kann, da nicht mehr wie bisher ausschließlich eine Seite den Tabakfasern zugewandt und die andere Seite den Tabakfasern abgewandt ist.Due to the inventive twisting of the upper side of the tape against the lower side of the suction belt results in an automatic rotation of the suction belt after each revolution, ie it changes with each revolution of the suction belt to the drive and optionally deflecting a Saugstrangförderers the tape top with the belt underside. As a result, the wear acting on the respective side of the band, ie the top of the band or the underside of the band, is evenly distributed on both sides of the band or the above-described imbalance with regard to the wear of the tobacco fibers facing side of the suction belt and the tobacco fibers lifted away from the same side, so that the suction belt is exposed to a more uniform wear and therefore may have a longer life, since no longer as previously only one side facing the tobacco fibers and the other side facing away from the tobacco fibers.

Des Weiteren ergibt sich durch die Drehung des Saugbands bei jedem Umlauf und dem damit verbundenen Seitenwechsel der dem Unterdruck bzw. dem Vakuum zugewandten Seite des Saugbands in dem Saugstrangförderer der Vorteil, dass möglicherweise von einer Seite verstopfte Tabakfasern und andere Partikel beim nachfolgenden Bandumlauf von derselben Seite her mittels des Unterdrucks freigesaugt werden können.Furthermore, the rotation of the suction belt during each revolution and the associated side change of the negative pressure or the vacuum facing side of the suction belt in the Saugstrangförderer the advantage that possibly clogged from one side tobacco fibers and other particles in the subsequent belt circulation from the same side can be vacuumed by means of the negative pressure.

In einer sehr vorteilhaften Weiterbildung der Erfindung kann vorgesehen sein, dass das Saugband durch Verbinden der einander gegenüberliegenden Enden eines länglichen Bandhalbzeugs zu einem Endlosband hergestellt ist, wobei beim Verbinden der Enden die Bandoberseite mit der Bandunterseite und die Bandunterseite mit der Bandoberseite verbunden wird. Dies stellt eine konstruktiv sehr einfache Ausführungsform dar, durch die sich ein endloses Saugband ergibt.In a very advantageous development of the invention can be provided that the suction belt is made by connecting the opposite ends of an elongate strip semifinished product to an endless belt, wherein the connecting the ends of the band top is connected to the band underside and the band underside with the band top. This represents a structurally very simple embodiment, resulting in an endless suction belt.

Da die Bandoberseite und die Bandunterseite des erfindungsgemäßen Saugbands sich bei jedem Umlauf ändern und damit jede Bandseite abwechselnd mit den Tabakfasern und mit dem Unterdruck in Kontakt kommt, kann es sehr vorteilhaft sein, wenn die Bandoberseite und die Bandunterseite eine im Wesentlichen identische Rauigkeit aufweisen. Eine solche symmetrische Ausführung des Saugbands stellt eine Abkehr vom Stand der Technik dar, gemäß dem es für erforderlich gehalten worden war, dass die den Tabakfasern zugewandte Seite eine gewisse Rauigkeit aufweisen muss, um zum Transport der Tabakfasern geeignet zu sein. Es hat sich allerdings herausgestellt, dass diese Rauigkeit nicht unbedingt erforderlich ist, da allein der auf der gegenüberliegenden Seite der Tabakfasern anliegende Unterdruck in der Lage ist, die Tabakfasern an dem Saugband zu halten.Since the band upper side and the lower band side of the suction band according to the invention change with each revolution and thus each band side alternately comes into contact with the tobacco fibers and with the negative pressure, it can be very advantageous if the band upper side and the band lower side have a substantially identical roughness. Such a symmetrical design of the suction band represents a departure from the prior art, according to which it was considered necessary that the side facing the tobacco fibers must have a certain roughness in order to be suitable for transporting the tobacco fibers. However, it has been found that this roughness is not necessarily required, since only the applied on the opposite side of the tobacco fibers vacuum is able to hold the tobacco fibers on the suction belt.

Dennoch kann die Verdrehung der Bandoberseite gegenüber der Bandunterseite um den Umfang des Saugbands auch bei hinsichtlich ihrer Rauigkeit asymmetrischen Saugbändern eingesetzt werden, d.h. dass die Bandoberseite und die Bandunterseite eine unterschiedliche Rauigkeit aufweisen.Nevertheless, the twist of the upper side of the tape against the underside of the tape around the circumference of the suction belt can also be used with asymmetrical suction belts in terms of their roughness, i. that the upper side of the tape and the underside of the tape have a different roughness.

Ein Verfahren zur Herstellung eines erfindungsgemäßen Saugbands ist in Anspruch 5 angegeben.A method for producing a suction belt according to the invention is specified in claim 5.

Durch das Verdrehen des Bandhalbzeugs vor dem Verbinden der beiden Enden desselben ergibt sich auf sehr einfache Weise das erfindungsgemäße Saugband, bei dem die Bandoberseite um den Umfang desselben zumindest einmal gegenüber der Bandunterseite verdreht ist und das die oben genannten Vorteile aufweist.By twisting the strip semi-finished product before joining the two ends of the same results in a very simple manner the suction belt according to the invention, in which the band top around the circumference of the same at least once compared to the tape base is rotated and having the above advantages.

Obwohl es ausreichend ist, wenn das Bandhalbzeug entlang seiner Längsachse einmal um 180° verdreht wird, kann es bei bestimmten Ausführungsformen der Erfindung, beispielsweise wenn es sich um ein sehr langes Saugband handelt, sinnvoll sein, wenn vor dem Verbinden der beiden Enden die Bandoberseite und die Bandunterseite um ein ungeradzahliges Vielfaches von 180° entlang der Längsrichtung des Bandhalbzeugs gegeneinander verdreht werden.Although it is sufficient if the strip semifinished product is rotated once along its longitudinal axis by 180 °, it may be useful in certain embodiments of the invention, for example, if it is a very long suction belt, if prior to joining the two ends of the tape top and the lower side of the belt are rotated by an odd multiple of 180 ° along the longitudinal direction of the strip semifinished against each other.

Des Weiteren kann vorgesehen sein, dass die beiden Enden des Bandhalbzeugs mittels Ultraschallschweißen verbunden werden. Dabei handelt es sich um eine sehr einfach durchführbare und prozesssichere Möglichkeit zur Erzeugung des endlosen Saugbands aus dem länglichen Bandhalbzeug.Furthermore, it can be provided that the two ends of the strip semifinished product are connected by means of ultrasonic welding. It is a very simple and process-safe way to produce the endless suction belt from the elongated strip semi-finished product.

Alternativ dazu kann vorgesehen sein, dass die beiden Enden des Bandhalbzeugs mittels Laserschweißen verbunden werden. Auch mittels Laserschweißen kann eine sichere Verbindung der beiden Enden des Bandhalbzeugs geschaffen werden.Alternatively, it may be provided that the two ends of the strip semifinished product are connected by means of laser welding. By means of laser welding, a secure connection of the two ends of the strip semifinished product can be created.

Ein Saugstrangförderer für eine Zigarettenherstellungsmaschine, bei der ein erfindungsgemäßes Saugband eingesetzt wird, ist in Anspruch 9 angegeben. Ein solcher Saugstrangförderer macht sich die oben angegebenen Vorteile des erfindungsgemäßen Saugbands zunutze und kann, aufgrund der längeren Lebensdauer des Saugbands, über einen größeren Zeitraum ohne Unterbrechung eingesetzt werden.A Saugstrangförderer for a cigarette making machine, in which a suction belt according to the invention is used, is specified in claim 9. Such a Saugstrangförderer makes use of the above-mentioned advantages of the suction belt according to the invention and can be used over a longer period without interruption due to the longer life of the suction belt.

Um zu verhindern, dass die Seite des Saugbands in dem Bereich wechselt, in dem die Tabakfasern an das Saugband angesaugt werden, also dem sogenannten Aufschauerbereich, was ansonsten zu einem Einsaugen des zuvor an das Saugband angesaugten Tabaks in die Unterdruckkammer führen würde, kann in einer sehr vorteilhaften Weiterbildung der Erfindung vorgesehen sein, dass der Umkehrpunkt des Saugbands in einem von einem Aufschauerbereich der Tabakfasern entfernten Bereich zwischen zwei Rollen verläuft.In order to prevent the side of the suction belt in the area changes, in which the tobacco fibers are sucked to the suction belt, so the so-called Aufschauerbereich, which would otherwise lead to an aspiration of the previously sucked on the suction tobacco in the vacuum chamber, can in one be provided very advantageous development of the invention, that the point of reversal of the suction belt in a remote from a Aufschauerbereich the tobacco fibers area between two rollers.

Nachfolgend ist ein Ausführungsbeispiel der Erfindung anhand der Zeichnung prinzipmäßig dargestellt.Hereinafter, an embodiment of the invention with reference to the drawing is shown in principle.

Es zeigt:

Fig. 1
eine schematische Darstellung eines Saugstrangförderers für eine Zigarettenherstellungsmaschine mit einem erfindungsgemäßen Saugband;
Fig. 2
eine perspektivische Darstellung eines erfindungsgemäßen Saugbands; und
Fig. 3
ein längliches Bandhalbzeug, aus dem das erfindungsgemäße Saugband hergestellt ist.
It shows:
Fig. 1
a schematic representation of a Saugstrangförderers for a cigarette manufacturing machine with a suction belt according to the invention;
Fig. 2
a perspective view of a suction belt according to the invention; and
Fig. 3
an elongated strip semifinished product, from which the suction belt according to the invention is made.

Fig. 1 zeigt einen Saugstrangförderer 1 für eine in ihrer Gesamtheit nicht dargestellte Zigarettenherstellungsmaschine. Der Saugstrangförderer 1 weist in an sich bekannter Weise eine mittels einer gestrichelten Linie angedeutete Unterdruckkammer 2 auf, in der ein Unterdruck bzw. ein Vakuum herrscht, mit dem Tabakfasern 3 an ein in der Unterdruckkammer 2 verlaufendes Saugband 4 angesaugt werden. Das Saugband 4 läuft um mehrere Rollen des Saugstrangförderers 1 um, wobei im vorliegenden Fall neben wenigstens einer, im dargestellten Ausführungsbeispiel zwei, Antriebsrollen 5 mehrere Umlenkrollen 6 vorgesehen sind, um welche das Saugband 4 umläuft. Der Aufbau des Saugstrangförderers 1 ist als rein beispielhaft anzusehen. Mit Ausnahme des Saugbands 4 und dessen Positionierung innerhalb des Saugstrangförderers 1 besteht kein Unterschied zu bekannten Saugstrangförderern. Fig. 1 shows a Saugstrangförderer 1 for a cigarette manufacturing machine, not shown in its entirety. The Saugstrangförderer 1 has in a conventional manner a direction indicated by a dashed line vacuum chamber 2, in which a vacuum or a vacuum prevails, sucked with the tobacco fibers 3 to a running in the vacuum chamber 2 suction belt 4 become. The suction belt 4 revolves around a plurality of rollers of the suction belt conveyor 1, wherein in the present case in addition to at least one, in the illustrated embodiment, two drive rollers 5, a plurality of deflection rollers 6 are provided, around which the suction belt 4 rotates. The structure of the Saugstrangförderers 1 is to be regarded as purely exemplary. With the exception of the suction belt 4 and its positioning within the Saugstrangförderers 1 there is no difference to known Saugstrangförderern.

Im Bereich der Unterdruckkammer 2 ist ein sogenanntes Schwert 7 vorgesehen, mit dem das Saugband 4 auf derjenigen Seite in Kontakt ist, die der mit den Tabakfasern 3 in Kontakt stehenden Seite des Saugbands 4 gegenüberliegt. Mittels gestrichelter Linien sind in Fig. 1 außerdem mehrere Rollen 8 dargestellt, die alternativ zu dem Schwert 7 vorgesehen sein können und an denen das Saugband 4 in einer solchen Ausführungsform statt an dem Schwert 7 anliegt. Je nach Ausführungsform des Saugstrangförderers 1 ist demnach entweder das Schwert 7 oder die Rollen 8 vorgesehen.In the region of the vacuum chamber 2, a so-called sword 7 is provided, with which the suction belt 4 is in contact on the side opposite to the side of the suction belt 4 in contact with the tobacco fibers 3. By dashed lines are in Fig. 1 also shown a plurality of rollers 8, which may be provided as an alternative to the sword 7 and where the suction belt 4 rests in such an embodiment instead of the sword 7. Depending on the embodiment of the Saugstrangförderers 1 therefore either the sword 7 or the rollers 8 is provided.

Der Transport der Tabakfasern 3 erfolgt dadurch, dass die Tabakfasern 3 in einem sogenannten Aufschauerbereich, der sich unterhalb des Schwerts 7 bzw. der Rollen 8 befindet, an das Saugband 4 angesaugt und durch dessen Bewegung in der mit "x" bezeichneten Richtung transportiert werden. Das Lösen der Tabakfasern 3 von dem Saugband 4 erfolgt in an sich bekannter Weise.The transport of the tobacco fibers 3 takes place in that the tobacco fibers 3 in a so-called Aufschauerbereich, which is located below the sword 7 and the rollers 8, sucked to the suction belt 4 and transported by the movement in the direction indicated by "x" direction. The release of the tobacco fibers 3 from the suction belt 4 takes place in a conventional manner.

In Fig. 2 ist das Saugband 4 aus Fig. 1 perspektivisch dargestellt. Bei dem Saugband 4 handelt es sich um ein endloses Saugband, das vorzugsweise aus einem in Fig. 3 dargestellten länglichen Bandhalbzeug 9 hergestellt wurde. Das längliche Bandhalbzeug 9 weist zwei Enden 10 und 11 auf, die miteinander verbunden werden, um das Saugband 4 zu bilden.In Fig. 2 is the suction belt 4 off Fig. 1 shown in perspective. In the suction belt 4 is an endless suction belt, which preferably consists of a in Fig. 3 shown elongated strip semifinished product 9 was produced. The elongate strip semifinished product 9 has two ends 10 and 11, which are joined together to form the suction belt 4.

Im Unterschied zu sämtlichen bekannten Saubändern, beispielsweise dem Saugband gemäß der DE 10 2011 006 803 B4 , das ebenfalls durch Verbinden der beiden Enden eines Halbzeugs zu einem endlosen Saugband geformt wurde, wird bei der Herstellung des Saugbands 4 vor dem Verbinden der beiden Enden 10 und 11 desselben das Bandhalbzeug 9 entlang seiner Längsachse 12 wenigstens einmal um 180° verdreht. Dadurch ist bei dem in Fig. 2 dargestellten, fertigen Saugband 4 eine Bandoberseite 13 um den Umfang des Saugbands 4 zumindest einmal gegenüber einer der Bandoberseite 13 gegenüberliegenden Bandunterseite 14 verdreht. Beim Verbinden der beiden Enden 10 und 11 des Saugbands 4 wird demnach die Bandoberseite 13 mit der Bandunterseite 14 und die Bandunterseite 14 mit der Bandoberseite 13 des jeweiligen Endes verbunden. Das Verbinden der beiden Enden 10 und 11 des Bandhalbzeugs 9 kann beispielsweise mittels Ultraschallschweißen oder mittels Laserschweißen erfolgen.In contrast to all known Saubändern, for example, the suction belt according to the DE 10 2011 006 803 B4 , which has also been formed by connecting the two ends of a semifinished product to an endless suction belt, is used in the manufacture of the suction belt 4 prior to joining the two ends 10 and 11 thereof, the strip semi-finished product 9 along its longitudinal axis 12 at least once rotated by 180 °. This is where in Fig. 2 shown, finished suction belt 4 a tape top 13 around the circumference of the suction belt 4 at least once against a band upper side 13 opposite lower belt side 14 is rotated. When connecting the two ends 10 and 11 of the suction belt 4, therefore, the band top side 13 is connected to the band lower side 14 and the band lower side 14 to the band top side 13 of the respective end. The joining of the two ends 10 and 11 of the strip semi-finished product 9 can be done for example by means of ultrasonic welding or by laser welding.

Während es grundsätzlich ausreichend ist, wenn das Bandhalbzeug 9 vor dem Verbinden der beiden Enden 10 und 11 lediglich einmal um 180° verdreht wird, kann auch vorgesehen sein, dass das Bandhalbzeug 9 um ein ungeradzahliges Vielfaches von 180° entlang der Längsachse 12 verdreht wird.While it is basically sufficient if the strip semifinished product 9 before joining the two ends 10 and 11 is rotated only once by 180 °, can also be provided that the strip semi-finished product 9 is rotated by an odd multiple of 180 ° along the longitudinal axis 12.

Bei der Montage des Saugbands 4 innerhalb des Saugstrangförderers 1 sollte darauf geachtet werden, dass der in Fig. 1 nicht unmittelbar erkennbare Umkehrpunkt des Saugbands 4, also der Punkt, an dem die Bandoberseite 13 und die Bandunterseite 14 beim Umlauf des Saugbands 4 gegeneinander verdreht bzw. miteinander vertauscht werden, in einem vom Aufschauerbereich der Tabakfasern 3 entfernten Bereich zwischen zwei Antriebsrollen 5 und/oder Umlenkrollen 6 verläuft. Dieser Bereich zwischen den Rollen 5 bzw. 6, in dem sich im vorliegenden Fall der Umkehrpunkt des Saugbands 4 befindet, ist in Fig. 1 mit "U" bezeichnet.When installing the suction belt 4 within the Saugstrangförderers 1 care should be taken that the in Fig. 1 not directly recognizable reversal point of the suction belt 4, ie the point at which the tape top 13 and the belt bottom 14 are rotated during rotation of the suction belt 4 against each other or interchanged, in a remote from the Aufschauerbereich the tobacco fibers 3 area between two drive rollers 5 and / or Pulleys 6 runs. This area between the rollers 5 and 6, in which the reversal point of the suction belt 4 is located in the present case, is in Fig. 1 denoted by "U".

Claims (10)

  1. Suction belt for transporting tobacco fibres (3), having a belt top side (13) and a belt underside (14) located on the opposite side from the belt top side (13),
    characterized in that
    the belt top side (13) is twisted at least once with respect to the belt underside (14) around the circumference of the suction belt (4).
  2. Suction belt according to Claim 1,
    characterized in that
    the suction belt (4) has been produced by connecting the mutually opposite ends (10, 11) of an elongate semifinished belt (9) to form an endless belt, wherein, when the ends (10, 11) are connected, the belt top side (13) is connected to the belt underside (14) and the belt underside (14) is connected to the belt top side (13).
  3. Suction belt according to Claim 1 or 2,
    characterized in that
    the belt top side (13) and the belt underside (14) have substantially identical roughness.
  4. Suction belt according to Claim 1 or 2,
    characterized in that
    the belt top side (13) and the belt underside (14) have different roughnesses.
  5. Method for producing an endless suction belt according to Claim 1, wherein the endless suction belt (4) is produced from an elongate semifinished belt (9) by connecting the two ends (10, 11) of the semifinished belt (9),
    characterized in that,
    before the two ends (10, 11) are connected, the semifinished belt (9) is twisted through 180° at least once along its longitudinal axis, and in that, when the ends (10, 11) are connected, the belt top side (13) is connected to the belt underside (14) and the belt underside (14) is connected to the belt top side (13).
  6. Method according to Claim 5,
    characterized in that,
    before the two ends (10, 11) are connected, the belt top side (13) and the belt underside (14) are twisted through an odd multiple of 180° with respect to one another in the longitudinal direction (x) of the semifinished belt (9).
  7. Method according to Claim 5 or 6,
    characterized in that
    the two ends (10, 11) of the semifinished belt (9) are connected by means of ultrasonic welding.
  8. Method according to Claim 5 or 6,
    characterized in that
    the two ends (10, 11) of the semifinished belt (9) are connected by means of laser welding.
  9. Suction line conveyor (1) for a cigarette production machine, having a negative pressure chamber (2), having at least one drive roller (5) and having a plurality of deflection rollers (6), about which a suction belt (4) according to one of Claims 1 to 4 runs.
  10. Suction line conveyor according to Claim 9,
    characterized in that
    the reversal point of the suction belt (4) extends in a region between two rollers (5, 6) that is remote from a scattering-on region for the tobacco fibres (3).
EP15160004.6A 2015-03-20 2015-03-20 Suction belt Active EP3069618B1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
HUE15160004A HUE034451T2 (en) 2015-03-20 2015-03-20 Suction belt
PT151600046T PT3069618T (en) 2015-03-20 2015-03-20 Suction belt
EP15160004.6A EP3069618B1 (en) 2015-03-20 2015-03-20 Suction belt
PL15160004T PL3069618T3 (en) 2015-03-20 2015-03-20 Suction belt
PCT/EP2016/053712 WO2016150635A1 (en) 2015-03-20 2016-02-23 Suction belt

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP15160004.6A EP3069618B1 (en) 2015-03-20 2015-03-20 Suction belt

Publications (2)

Publication Number Publication Date
EP3069618A1 EP3069618A1 (en) 2016-09-21
EP3069618B1 true EP3069618B1 (en) 2017-06-14

Family

ID=52686255

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15160004.6A Active EP3069618B1 (en) 2015-03-20 2015-03-20 Suction belt

Country Status (5)

Country Link
EP (1) EP3069618B1 (en)
HU (1) HUE034451T2 (en)
PL (1) PL3069618T3 (en)
PT (1) PT3069618T (en)
WO (1) WO2016150635A1 (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19909031A1 (en) 1999-03-02 2000-09-14 Schlatterer Gmbh & Co Kg Max Conveyor belt for transporting light bulk materials under vacuum comprises weft and warp filaments which are combined so that one side of the belt is smooth, while its opposite side is extremely rough
DE102011006803B4 (en) * 2011-04-05 2013-10-02 Max Schlatterer Gmbh & Co. Kg Suction belt for transporting tobacco
DE102012200158A1 (en) * 2012-01-06 2013-07-11 Hauni Maschinenbau Ag Suction belt of a machine of the tobacco processing industry
DE102012211069B4 (en) 2012-06-27 2014-08-21 Max Schlatterer Gmbh & Co. Kg suction belt
DE102012223074A1 (en) 2012-12-13 2014-06-18 Max Schlatterer Gmbh & Co Kg Suction belt for transporting tobacco or filter material

Also Published As

Publication number Publication date
EP3069618A1 (en) 2016-09-21
PL3069618T3 (en) 2017-12-29
HUE034451T2 (en) 2018-02-28
WO2016150635A1 (en) 2016-09-29
PT3069618T (en) 2017-08-10

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