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EP1513421B1 - Roll pair for stretching strips of filter material - Google Patents

Roll pair for stretching strips of filter material Download PDF

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Publication number
EP1513421B1
EP1513421B1 EP03732427A EP03732427A EP1513421B1 EP 1513421 B1 EP1513421 B1 EP 1513421B1 EP 03732427 A EP03732427 A EP 03732427A EP 03732427 A EP03732427 A EP 03732427A EP 1513421 B1 EP1513421 B1 EP 1513421B1
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EP
European Patent Office
Prior art keywords
roller
drive
pair according
roller pair
shaft
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.)
Expired - Lifetime
Application number
EP03732427A
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German (de)
French (fr)
Other versions
EP1513421A1 (en
Inventor
Firdausia Chehab
Stefan Fietkau
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International Tobacco Machinery BV
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International Tobacco Machinery BV
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Filing date
Publication date
Application filed by International Tobacco Machinery BV filed Critical International Tobacco Machinery BV
Publication of EP1513421A1 publication Critical patent/EP1513421A1/en
Application granted granted Critical
Publication of EP1513421B1 publication Critical patent/EP1513421B1/en
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Classifications

    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
    • A24D3/02—Manufacture of tobacco smoke filters
    • A24D3/0204—Preliminary operations before the filter rod forming process, e.g. crimping, blooming

Definitions

  • the invention relates to a roller pair for tensioning strands of filter material in the manufacture of cigarette filters according to the preamble of patent claim 1.
  • the filter of filter cigarettes are usually made of a so-called filter tow of cellulose acetate. It is stripped from a bale of cellulose acetate and formed into a web or strand prior to being fed to the machine in which the filter plugs are made. The "cable" removed from the bale is heavily curled and is therefore subjected to tensile stress for expansion.
  • two spaced-apart pairs of rollers are provided, of which the one which is driven in the transport direction from the lying at a greater speed than the rear, so as to generate a voltage.
  • roller pairs used for this purpose are mounted on one end of the frame of the machine, one roller being made of metal and the other being a surface layer of elastic material, e.g. Having rubber or the like.
  • Such arrangements are i.a. in DE 1 532 142 or DE 2 008 033.
  • the overhead metal roller is driven, while the lower roller is mounted to run.
  • the lower roller is pivotally mounted about a horizontal axis near its bearing.
  • a linear pneumatic drive is provided to operate the pivoting.
  • the invention has for its object to change roller pair of the specified type to the effect that the wear is reduced.
  • the second roller of a drive via a second drive shaft and a propeller shaft is driven.
  • the second drive shaft is coupled via a gear transmission with the first drive shaft. Therefore, an additional drive is not required.
  • the second roller is also mounted so that the size of the gap between the rollers in adaptation to the thickness of the material over its length is variable.
  • the contact pressure must be only so large that the acetate fibers between the spaced pairs of rollers can be held in order to stretch them in a certain ratio. In this way, the wear of the lining of the second roller is significantly reduced.
  • the second roller is not only pivoted away from the first roller, but can also make a pivoting during operation within limits or undergo an adjustment parallel to itself, if this is expedient due to the thickness of the material.
  • the resistance that must be overcome in such a movement of the second roller is that of the pivot drive, which therefore expediently acts on the second roller via a spring medium.
  • the actuator in turn includes a pneumatic cylinder that automatically allows a limited pivoting of the roller.
  • another actuator can act on the pivoting of the second roller via a spring medium.
  • the second roller is coupled via a universal joint shaft to the second drive shaft.
  • the second drive shaft may, as already mentioned, be the output shaft of a toothed wheel drive, whose input shaft represents the motor shaft.
  • the second roller is hollow. Inside, a drive flange is fixed, which cooperates with a roller bearing, whose inner ring is mounted pivotably about a horizontal axis on a sleeve-shaped bearing component.
  • the propeller shaft is passed through the sleeve-shaped component.
  • the sleeve-shaped component is in turn pivotally mounted about a horizontal axis on the frame.
  • the bearing component is pivotally mounted and can transmit this movement to the roller.
  • the roller is in turn pivotally mounted on the bearing component, so that it is also adjustable parallel to itself in order to adapt to the thickness of the filter tow.
  • the arrangement of the roller pair including the gear parts may be designed so that it can be attached to a conventional roller drive.
  • the frame has a vertical support plate on which Flanged on one side of the drive motor, as it is known.
  • a gear box for the gear transmission is mounted, which in turn allows the storage of the second roller.
  • the rollers can be mounted together with the gear box and the gear housed therein as a unit to the conventional support plate.
  • a second drive can be provided for the second roller, which preferably runs with a torque which compensates for the bearing friction. The speed of the second drive is adjusted so that the peripheral speed of both rollers is equal, so that friction in the nip does not occur.
  • the z. B. may be an air motor or a hydraulic motor, the contact pressure between the rollers can be reduced because the frictional forces of the bearings no longer need to be overcome.
  • an overrunning clutch is provided according to an embodiment of the invention for the fast startup phase of the machine up to production speed. This allows the second roller to follow the first one. Under certain circumstances, it may be necessary to briefly increase the contact pressure during this startup time.
  • the system described last provides a relatively resilient drive which can easily compensate for variations in speed and ensures that the upper and lower rollers move in lockstep.
  • a support plate 10 can be seen, which is part of a machine frame of a machine, which serves for the preparation of a so-called filter tow.
  • a so-called filter tow To this plant belong two pairs of rolls, one of which is shown in FIGS. 1 to 3.
  • the second pair may have the same structure or be conventional.
  • FIGS. 1 to 3 an upper roller 12 and a lower roller 14 can be seen.
  • the upper hollow roll is made of metal, while the lower roll 14 has a hollow metal shell 16 and a rubber coating 18.
  • an electric motor 20 is flanged on the left side of the vertical support plate 10. Its drive shaft 22 is coupled via a coupling with a further shaft 24 which extends into a sleeve-shaped bearing body 26.
  • the bearing body 26 is flanged to a transmission housing 28 which receives two spur gears 30, 32.
  • the spur gear 30 is seated on the shaft 24 and meshes with the second spur gear 32.
  • the gear ratio is 1: 1.
  • the transmission housing 28 is fixedly connected to the support plate 10.
  • the shaft 24 is rotatably connected to a flange 34, which in turn is clamped within the roller 32. A rotation of the shaft 24 thus leads to a corresponding rotation of the roller 12.
  • the roller 12 is held centrally only at one point. The load is absorbed by the shaft 24, which is mounted by means of rolling bearings 36, 38 within the bearing body 26.
  • a bearing flange 40 is connected by screw mounting, which rotatably supports a pin 46 by means of two roller bearings 42, 44, which is rotatably connected to the lower spur gear 32.
  • a sleeve-shaped bearing component 50 is pivotally supported by the bearing flange 32. In FIGS. 1 to 3, this bearing takes place about a horizontal axis.
  • the sleeve-shaped bearing member 50 by means of two diametrically opposed bearing journals 52, 54, the inner rings of two bearings 56, 58.
  • the outer ring of the bearings 56, 58 is rotatably connected to the inside of the roller 14 ,
  • a flange 60 is connected, with which the right end of a propeller shaft 62 is coupled torsionally rigid.
  • the propeller shaft has a first universal joint 64 and a second universal joint 66, by means of which the latter an articulation takes place on the journal 46.
  • the propeller shaft 62 extends through the interior of the sleeve-shaped bearing member 50. The interior of which is protected by a protective membrane 68 against ingress of dirt.
  • an angular component 70 is screwed to the underside, which rests in Fig. 1 on a stop 72 which is connected to the transmission housing 28.
  • a pneumatic Verstellzylinderan extract 74 is articulated on the lower leg of the component 70. With the help of Verstellzylinderan effet 74 can thus be pivoted upwardly the lower roller, as shown in Fig. 2.
  • the pressure with which the two rollers 12, 14 are pressed against one another is predetermined by the pressure in the cylinder arrangement 74.

Landscapes

  • Preliminary Treatment Of Fibers (AREA)
  • Press Drives And Press Lines (AREA)
  • Filtering Materials (AREA)
  • Metal Rolling (AREA)
  • Manufacturing Of Cigar And Cigarette Tobacco (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
  • Rollers For Roller Conveyors For Transfer (AREA)
  • Details Of Cutting Devices (AREA)
  • Paper (AREA)

Abstract

Roller pair for tensioning strands of filter material in the manufacture of cigarette filters with a first roller made of metal which is rotatably driven by a drive and a second roller of which the surface consists of a resilient material, the two rollers being mounted on one side on a frame or the like and the second roller being pivotally mounted about a horizontal axis perpendicular to its longitudinal axis, away from the first roller and towards the latter, and an actuation device for pivoting the second roller, the second roller able to be driven by a drive via a second drive shaft and an articulated shaft and being mounted such that the size of the gap between the rollers can be altered along its length to adapt to the thickness of the material.

Description

Die Erfindung bezieht sich auf ein Walzenpaar zum Spannen von Strängen aus Filtermaterial bei der Herstellung von Zigarettenfiltem nach dem Oberbegriff des Patentanspruchs 1.The invention relates to a roller pair for tensioning strands of filter material in the manufacture of cigarette filters according to the preamble of patent claim 1.

Die Filter von Filterzigaretten werden üblicherweise aus einem sogenannten Filtertow aus Zelluloseacetat hergestellt. Es wird von einem Ballen aus Zelluloseacetat abgezogen und zu einer Bahn oder einem Strang geformt, bevor es der Maschine zugeleitet wird, in welcher die Filterpfropfen hergestellt werden. Das vom Ballen abgezogene "Kabel" ist stark gekräuselt und wird daher zur Ausbreitung unter Zugspannung gesetzt. Zu diesem Zwecke sind zwei beabstandete Walzenpaare vorgesehen, von denen das in Transportrichtung vom liegende mit größerer Geschwindigkeit angetrieben wird als das hintere, um auf diese Weise eine Spannung zu erzeugen.The filter of filter cigarettes are usually made of a so-called filter tow of cellulose acetate. It is stripped from a bale of cellulose acetate and formed into a web or strand prior to being fed to the machine in which the filter plugs are made. The "cable" removed from the bale is heavily curled and is therefore subjected to tensile stress for expansion. For this purpose, two spaced-apart pairs of rollers are provided, of which the one which is driven in the transport direction from the lying at a greater speed than the rear, so as to generate a voltage.

Die hierzu verwendeten Walzenpaare sind am Rahmen der Maschine einendig gelagert, wobei eine Walze aus Metall besteht und die andere eine Oberflächenschicht aus elastischem Material, z.B. Gummi oder dergleichen aufweist. Derartige Vorkehrungen sind u.a. in DE 1 532 142 oder DE 2 008 033 beschrieben.The roller pairs used for this purpose are mounted on one end of the frame of the machine, one roller being made of metal and the other being a surface layer of elastic material, e.g. Having rubber or the like. Such arrangements are i.a. in DE 1 532 142 or DE 2 008 033.

Bei den bekannten Walzenpaaren ist die oben liegende aus Metall bestehende Walze angetrieben, während die untere Walze mitlaufend gelagert ist. Zum Einfädeln des Filtertows ist die untere Walze um eine horizontale Achse nahe ihrer Lagerung schwenkbar gelagert. Zur Betätigung der Verschwenkung ist ein linearer pneumatischer Antrieb vorgesehen.In the known pairs of rollers, the overhead metal roller is driven, while the lower roller is mounted to run. To thread the filter tow, the lower roller is pivotally mounted about a horizontal axis near its bearing. To operate the pivoting a linear pneumatic drive is provided.

Damit eine gewisse Reckung des Tows schlupffrei erfolgen kann, muß die untere Walze mit relativ hoher Preßkraft angedrückt werden. Hierdurch erfährt die Gummibeschichtung der unteren Walze jedoch einen nicht unbeträchtlichen Verschleiß.Thus, a certain stretching of the Tows can be done without slippage, the lower roller must be pressed with relatively high pressing force. As a result, however, undergoes the rubber coating the lower roller a not inconsiderable wear.

Der Erfindung liegt die Aufgabe zugrunde, Walzenpaar der angegebenen Art dahingehend abzuändern, daß der Verschleiß verringert wird.The invention has for its object to change roller pair of the specified type to the effect that the wear is reduced.

Diese Aufgabe wird durch die Merkmale des Patentanspruchs 1 gelöst.This object is solved by the features of patent claim 1.

Bei der Erfindung ist auch die zweite Walze von einem Antrieb über eine zweite Antriebswelle und eine Gelenkwelle antreibbar. Nach einer Ausgestaltung der Erfindung ist die zweite Antriebswelle über ein Zahnradgetriebe mit der ersten Antriebswelle gekoppelt. Daher ist ein zusätzlicher Antrieb nicht erforderlich.In the invention, the second roller of a drive via a second drive shaft and a propeller shaft is driven. According to one embodiment of the invention, the second drive shaft is coupled via a gear transmission with the first drive shaft. Therefore, an additional drive is not required.

Erfindungsgemäß ist ferner die zweite Walze so gelagert, daß die Größe des Spaltes zwischen den Walzen in Anpassung an die Dicke des Materials über seine Länge veränderbar ist.According to the invention, the second roller is also mounted so that the size of the gap between the rollers in adaptation to the thickness of the material over its length is variable.

Bei der Erfindung muß der Anpreßdruck nur noch so groß sein, daß die Acetatfasem zwischen den beabstandeten Walzenpaaren festgehalten werden können, um sie in einem bestimmten Verhältnis zu recken. Auf diese Weise wird der Verschleiß des Belags der zweiten Walze deutlich verringert.In the invention, the contact pressure must be only so large that the acetate fibers between the spaced pairs of rollers can be held in order to stretch them in a certain ratio. In this way, the wear of the lining of the second roller is significantly reduced.

Bei der Erfindung ist die zweite Walze nicht nur wegschwenkbar von der ersten Walze gelagert, sondern kann auch während des Betriebes in Grenzen eine Verschwenkung vornehmen bzw. eine Verstellung parallel zu sich selbst erleiden, wenn dies aufgrund der Dicke des Materials zweckmäßig ist. Der Widerstand, der bei einer derartigen Bewegung der zweiten Walze überwunden werden muß, ist der des Schwenkantriebs, der daher zweckmäßigerweise über ein Federmedium auf die zweite Walze einwirkt. Dies kann z.B. dadurch geschehen, daß die Betätigungsvorrichtung ihrerseits einen Pneumatikzylinder enthält, der automatisch eine begrenzte Verschwenkung der Walze erlaubt. Alternativ kann auch eine andere Betätigungsvorrichtung über ein Federmedium auf die Verschwenkung der zweiten Walze einwirken.In the invention, the second roller is not only pivoted away from the first roller, but can also make a pivoting during operation within limits or undergo an adjustment parallel to itself, if this is expedient due to the thickness of the material. The resistance that must be overcome in such a movement of the second roller is that of the pivot drive, which therefore expediently acts on the second roller via a spring medium. This can be done, for example, that the actuator in turn includes a pneumatic cylinder that automatically allows a limited pivoting of the roller. Alternatively, another actuator can act on the pivoting of the second roller via a spring medium.

Nach einer anderen Ausgestaltung der Erfindung ist die zweite Walze über eine Kreuzgelenkwelle an die zweite Antriebswelle gekoppelt. Die zweite Antriebswelle kann, wie bereits erwähnt, die Abtriebswelle eines Zahnradgetriebes sein, dessen Eingangswelle die Motorwelle darstellt.According to another embodiment of the invention, the second roller is coupled via a universal joint shaft to the second drive shaft. The second drive shaft may, as already mentioned, be the output shaft of a toothed wheel drive, whose input shaft represents the motor shaft.

Nach einer anderen Ausgestaltung der Erfindung ist die zweite Walze hohl. Im Inneren ist ein Antriebsflansch befestigt, der mit einem Rollenlager zusammenwirkt, dessen Innenring um eine horizontale Achse schwenkbar auf einem hülsenförmigen Lagerbauteil gelagert ist. Die Gelenkwelle ist durch das hülsenförmige Bauteil hindurchgeführt. Das hülsenförmige Bauteil ist seinerseits noch einmal um eine horizontale Achse am Rahmen schwenkbar gelagert. Somit ist zum einen das Lagerbauteil schwenkbar gelagert und kann diese Bewegung auf die Walze übertragen. Zum anderen ist die Walze ihrerseits schwenkbar auf dem Lagerbauteil gelagert, so daß sie auch parallel zu sich selbst verstellbar ist zwecks Anpassung an die Dicke des Filtertows.According to another embodiment of the invention, the second roller is hollow. Inside, a drive flange is fixed, which cooperates with a roller bearing, whose inner ring is mounted pivotably about a horizontal axis on a sleeve-shaped bearing component. The propeller shaft is passed through the sleeve-shaped component. The sleeve-shaped component is in turn pivotally mounted about a horizontal axis on the frame. Thus, on the one hand, the bearing component is pivotally mounted and can transmit this movement to the roller. On the other hand, the roller is in turn pivotally mounted on the bearing component, so that it is also adjustable parallel to itself in order to adapt to the thickness of the filter tow.

Die Anordnung des Walzenpaares einschließlich der Getriebeteile kann so ausgeführt sein, daß sie an einen herkömmlichen Walzenantrieb anbringbar ist. Nach einer Ausgestaltung der Erfindung weist der Rahmen eine vertikale Tragplatte auf, an der auf einer Seite der Antriebsmotor angeflanscht ist, wie es an sich bekannt ist. Auf der gegenüberliegenden Seite der Platte ist ein Getriebekasten für das Zahnradgetriebe angebracht, der seinerseits die Lagerung der zweiten Walze ermöglicht. Bei einem Austausch der Walzenpaare in einer Filterherstellungsmaschine durch solche nach der Erfindung ist daher nur ein geringer Aufwand erforderlich. Die Walzen können zusammen mit dem Getriebekasten und dem darin aufgenommenen Getriebe als Einheit an die herkömmliche Tragplatte angebracht werden.The arrangement of the roller pair including the gear parts may be designed so that it can be attached to a conventional roller drive. According to one embodiment of the invention, the frame has a vertical support plate on which Flanged on one side of the drive motor, as it is known. On the opposite side of the plate, a gear box for the gear transmission is mounted, which in turn allows the storage of the second roller. When replacing the pairs of rollers in a filter manufacturing machine by such according to the invention, therefore, only a small effort is required. The rollers can be mounted together with the gear box and the gear housed therein as a unit to the conventional support plate.

Bei Verwendung eines einzigen Antriebs für beiden Walzen sind hohe Fertigungstoleranzen erforderlich, damit beide Walzen mit gleicher Geschwindigkeit laufen. Ist dies nicht der Fall, kommt es wegen Reibung zu Verschleiß. Alternativ kann daher ein zweiter Antrieb vorgesehen werden für die zweite Walze, der vorzugsweise mit einem Drehmoment läuft, der die Lagerreibungen kompensiert. Die Drehzahl des zweiten Antriebs wird derart eingestellt, daß die Umfangsgeschwindigkeit beider Walzen gleich ist, so daß Reibungen im Walzenspalt nicht auftreten.When using a single drive for both rollers high manufacturing tolerances are required so that both rollers run at the same speed. If this is not the case, it comes to friction due to friction. Alternatively, therefore, a second drive can be provided for the second roller, which preferably runs with a torque which compensates for the bearing friction. The speed of the second drive is adjusted so that the peripheral speed of both rollers is equal, so that friction in the nip does not occur.

Durch den zweiten Antrieb, der z. B. ein Luftmotor oder ein Hydraulikmotor sein kann, kann die Anpreßkraft zwischen den Walzen reduziert werden, weil die Reibungskräfte der Lager nicht mehr überwunden werden müssen.By the second drive, the z. B. may be an air motor or a hydraulic motor, the contact pressure between the rollers can be reduced because the frictional forces of the bearings no longer need to be overcome.

Bei Verwendung eines Druckluftmotors muß berücksichtigt werden, daß dieser relativ träge reagiert. Daher ist nach einer Ausgestaltung der Erfindung für die schnelle Hochlaufphase der Maschine bis zur Produktionsgeschwindigkeit eine Freilaufkupplung vorgesehen. Dadurch kann die zweite Walze der ersten folgen. Es kann unter Umständen erforderlich sein, während dieser Hochfahrzeit den Anpreßdruck kurzzeitig zu erhöhen.When using a compressed air motor must be taken into account that this reacts relatively slowly. Therefore, an overrunning clutch is provided according to an embodiment of the invention for the fast startup phase of the machine up to production speed. This allows the second roller to follow the first one. Under certain circumstances, it may be necessary to briefly increase the contact pressure during this startup time.

Das zuletzt beschriebene System stellt einen relativ elastischen Antrieb dar, der Geschwindigkeitsschwankungen sehr einfach ausgleichen kann und gewährleistet, daß obere und untere Walze im Gleichschritt fahren.The system described last provides a relatively resilient drive which can easily compensate for variations in speed and ensures that the upper and lower rollers move in lockstep.

Die Erfindung wird nachfolgend anhand von Zeichnungen näher erläutert.

Fig. 1
zeigt einen Schnitt durch ein Walzenpaar nach der Erfindung mit geöffneter unterer Walze.
Fig. 2
zeigt die Anordnung von Fig. 1 mit geschlossener unterer Walze.
Fig. 3
zeigt die Anordnung nach Fig. 1 in einer ähnlichen Darstellung.
Fig. 4
zeigt einen Schnitt durch die untere Walze gemäß der Darstellung nach Fig. 1, jedoch mit einem Schnitt senkrecht zum Schnitt nach Fig. 1.
Fig. 5
zeigt perspektivisch eine zweite Ausführungsform eines Walzenpaars nach der Erfindung.
The invention will be explained in more detail with reference to drawings.
Fig. 1
shows a section through a pair of rollers according to the invention with an open lower roller.
Fig. 2
shows the arrangement of Fig. 1 with closed lower roller.
Fig. 3
shows the arrangement of FIG. 1 in a similar representation.
Fig. 4
shows a section through the lower roller as shown in FIG. 1, but with a section perpendicular to the section of FIG. 1st
Fig. 5
shows in perspective a second embodiment of a pair of rollers according to the invention.

In den Figuren 1 bis 4 ist eine Tragplatte 10 zu erkennen, die Bestandteil eines Maschinenrahmens einer Maschine ist, welche zur Aufbereitung eines sogenannten Filtertows dient. Zu dieser Anlage gehören zwei Paare von Walzen, von denen eines in den Figuren 1 bis 3 dargestellt ist. Das zweite Paar kann einen gleichen Aufbau haben oder herkömmlich ausgeführt sein.In Figures 1 to 4, a support plate 10 can be seen, which is part of a machine frame of a machine, which serves for the preparation of a so-called filter tow. To this plant belong two pairs of rolls, one of which is shown in FIGS. 1 to 3. The second pair may have the same structure or be conventional.

In den Figuren 1 bis 3 ist eine obere Walze 12 und eine untere Walze 14 zu erkennen. Die obere hohle Walze besteht aus Metall, während die untere Walze 14 einen hohlen Metallmantel 16 und einen Gummibelag 18 aufweist.In FIGS. 1 to 3, an upper roller 12 and a lower roller 14 can be seen. The upper hollow roll is made of metal, while the lower roll 14 has a hollow metal shell 16 and a rubber coating 18.

Auf der linken Seite der vertikalen Tragplatte 10 ist ein Elektromotor 20 angeflanscht. Seine Antriebswelle 22 ist über eine Kupplung mit einer weiteren Welle 24 gekuppelt, die sich in einen hülsenförmigen Lagerkörper 26 hineinerstreckt. Der Lagerkörper 26 ist an ein Getriebegehäuse 28 angeflanscht, das zwei Stirnzahnräder 30, 32 aufnimmt. Das Stirnrad 30 sitzt auf der Welle 24 und kämmt mit dem zweiten Stirnrad 32. Das Übersetzungsverhältnis ist 1:1. Das Getriebegehäuse 28 ist fest mit der Tragplatte 10 verbunden.On the left side of the vertical support plate 10, an electric motor 20 is flanged. Its drive shaft 22 is coupled via a coupling with a further shaft 24 which extends into a sleeve-shaped bearing body 26. The bearing body 26 is flanged to a transmission housing 28 which receives two spur gears 30, 32. The spur gear 30 is seated on the shaft 24 and meshes with the second spur gear 32. The gear ratio is 1: 1. The transmission housing 28 is fixedly connected to the support plate 10.

Die Welle 24 ist drehfest mit einem Flansch 34 verbunden, der seinerseits innerhalb der Walze 32 eingespannt ist. Eine Drehung der Welle 24 führt damit zu einer entsprechenden Drehung der Walze 12. Die Walze 12 ist nur an einer Stelle mittig gehalten. Die Lastaufnahme erfolgt über die Welle 24, die mit Hilfe von Wälzlagern 36, 38 innerhalb des Lagerkörpers 26 gelagert ist.The shaft 24 is rotatably connected to a flange 34, which in turn is clamped within the roller 32. A rotation of the shaft 24 thus leads to a corresponding rotation of the roller 12. The roller 12 is held centrally only at one point. The load is absorbed by the shaft 24, which is mounted by means of rolling bearings 36, 38 within the bearing body 26.

Mit der Außenseite des Getriebegehäuses 30 ist ein Lagerflansch 40 durch Schraubbefestigung verbunden, der mittels zweier Wälzlager 42, 44 einen Zapfen 46 drehbar lagert, der drehfest mit dem unteren Stirnrad 32 verbunden ist.With the outside of the gear housing 30, a bearing flange 40 is connected by screw mounting, which rotatably supports a pin 46 by means of two roller bearings 42, 44, which is rotatably connected to the lower spur gear 32.

Mit Hilfe von zwei diametral gegenüberliegenden Lagerzapfen 48, 50 ist vom Lagerflansch 32 ein hülsenförmiges Lagerbauteil 50 schwenkbar gelagert. In den Figuren 1 bis 3 erfolgt diese Lagerung um eine horizontale Achse. Wie ferner aus Fig. 4 hervorgeht, lagert das hülsenförmige Lagerbauteil 50 mit Hilfe von zwei diametral gegenüberliegenden Lagerzapfen 52, 54 die inneren Ringe von zwei Wälzlagern 56, 58. Der äußere Ring der Lager 56, 58 ist drehfest mit der Innenseite der Walze 14 verbunden.With the help of two diametrically opposite bearing pins 48, 50, a sleeve-shaped bearing component 50 is pivotally supported by the bearing flange 32. In FIGS. 1 to 3, this bearing takes place about a horizontal axis. As further shown in Fig. 4, the sleeve-shaped bearing member 50 by means of two diametrically opposed bearing journals 52, 54, the inner rings of two bearings 56, 58. The outer ring of the bearings 56, 58 is rotatably connected to the inside of the roller 14 ,

Mit dem äußeren Ring der Wälzlager 56, 58 ist ein Flansch 60 verbunden, mit dem das rechte Ende einer Gelenkwelle 62 drehstarr gekoppelt ist. Die Gelenkwelle weist ein erstes Kreuzgelenk 64 und ein zweites Kreuzgelenk 66 auf, durch welch letzteres eine Anlenkung an den Zapfen 46 erfolgt. Wie erkennbar, erstreckt sich die Gelenkwelle 62 durch das Innere des hülsenförmigen Lagerbauteils 50. Deren Inneres ist durch eine Schutzmembran 68 gegenüber Eindringen von Schmutz geschützt.To the outer ring of the rolling bearings 56, 58, a flange 60 is connected, with which the right end of a propeller shaft 62 is coupled torsionally rigid. The propeller shaft has a first universal joint 64 and a second universal joint 66, by means of which the latter an articulation takes place on the journal 46. As can be seen, the propeller shaft 62 extends through the interior of the sleeve-shaped bearing member 50. The interior of which is protected by a protective membrane 68 against ingress of dirt.

An das hülsenförmige Lagerbauteil 50 ist an der Unterseite ein winkelförmiges Bauteil 70 angeschraubt, das in Fig. 1 an einem Anschlag 72 anliegt, der mit dem Getriebegehäuse 28 verbunden ist. An dem unteren Schenkel des Bauteils 70 ist eine pneumatische Verstellzylinderanordnung 74 angelenkt. Mit Hilfe der Verstellzylinderanordnung 74 kann mithin die untere Walze nach oben geschwenkt werden, wie dies in Fig. 2 dargestellt ist. Der Druck, mit dem die beiden Walzen 12, 14 gegeneinander gepreßt werden, wird durch den Druck in der Zylinderanordnung 74 vorgegeben.To the sleeve-shaped bearing component 50, an angular component 70 is screwed to the underside, which rests in Fig. 1 on a stop 72 which is connected to the transmission housing 28. On the lower leg of the component 70, a pneumatic Verstellzylinderanordnung 74 is articulated. With the help of Verstellzylinderanordnung 74 can thus be pivoted upwardly the lower roller, as shown in Fig. 2. The pressure with which the two rollers 12, 14 are pressed against one another is predetermined by the pressure in the cylinder arrangement 74.

Während des Betriebes, wie er in Fig. 2 dargestellt ist, wird nicht nur die obere Walze 12 angetrieben, sondern auch die untere Walze 14, und zwar synchron. Die beschriebene Lagerung der unteren Walze 14 ermöglicht jedoch im Betrieb ein Kippen der unteren Walze 14, wie dies in Fig. 3 dargestellt ist oder auch ein Kippen in die entgegengesetzte Richtung, wie dies in Fig. 3 dargestellt ist. Schließlich ist auch möglich, die Walze 14 über einen mehr oder weniger großen Spalt von der oberen Walze 12 zu entfernen. Dabei erstrecken sich die Längsachsen der Walzen 12, 14 parallel zueinander, während die Gelenkwelle 62 und auch das Lagerbauteil 50 nach unten geneigt sind. Der Antrieb der unteren Walze 14 erfolgt jedoch unverändert.During operation, as shown in Fig. 2, not only the upper roller 12 is driven, but also the lower roller 14, in synchronism. However, the described bearing of the lower roller 14 allows in operation, a tilting of the lower roller 14, as shown in Fig. 3 or a tilting in the opposite direction, as shown in Fig. 3. Finally, it is also possible to remove the roller 14 over a more or less large gap from the upper roller 12. In this case, the longitudinal axes of the rollers 12, 14 extend parallel to each other, while the propeller shaft 62 and the bearing member 50 are inclined downward. However, the drive of the lower roller 14 is unchanged.

Es sei noch erwähnt, daß statt der gezeigten Gelenkwelle auch andere gelenkige Wellen zum Einsatz kommen können oder eine einteilige in sich elastische Welle.It should be noted that instead of the propeller shaft shown, other articulated shafts can be used or a one-piece elastic shaft.

Bei der Ausführungsform nach Fig. 5 werden wiederum zwei Walzen 12 und 14 verwendet vergleichbar den Walzen 12 und 14 nach den Fign. 1 bis 4. Die obere Walze 12 wird vom Elektromotor 20 angetrieben. Auch insoweit besteht Übereinstimmung mit der voran beschriebenen Ausführungsform. Die untere Walze 14 wird durch einen getrennten Druckluftmotor 80 angetrieben, der über eine Freilaufkupplung 82 an die untere Walze 14 gekoppelt ist. Der Druckluftmotor 80 wird mit einer Drehzahl angetrieben, die gewährleistet, daß beide Walzen 12, 14 die gleich Umfangsgeschwindigkeit haben. Das eingestellte Drehmoment des Druckluftmotors 80 kompensiert die Reibungsverluste der Lager. Die Schwenkbetätigung der unteren Walzen 14 kann auf gleiche Weise erfolgen wie zum obigen Ausführungsbeispiel beschrieben.In the embodiment according to FIG. 5 again two rolls 12 and 14 are used comparable to the rolls 12 and 14 according to FIGS. 1 to 4. The upper roller 12 is driven by the electric motor 20. Also in this respect, there is agreement with the embodiment described above. The lower roller 14 is driven by a separate pneumatic motor 80 which is coupled to the lower roller 14 via a one-way clutch 82. The air motor 80 is driven at a speed which ensures that both rollers 12, 14 have the same peripheral speed. The set torque of the compressed air motor 80 compensates for the friction losses of the bearings. The pivotal operation of the lower rollers 14 can be carried out in the same manner as described for the above embodiment.

Claims (10)

  1. Roller pair for tensioning strands of filter material in the manufacture of cigarette filters with a first roller made of metal which is rotatably driven by a drive and a second roller of which the surface consists of a resilient material, the two rollers being mounted on one side on a frame or the like and the second roller being pivotally mounted about a horizontal axis perpendicular to its longitudinal axis, away from the first roller and towards the latter, and an actuation device for pivoting the second roller, characterised in that the second roller (14) can be driven by a drive (20) via a second drive shaft (46) and an articulated shaft (62) and is mounted such that the size of the gap between the rollers (12, 14) can be altered along its length to adapt to the thickness of the material.
  2. Roller pair according to claim 1, characterised in that the second roller (14) is coupled via an universal joint shaft (62) to the second drive shaft (46).
  3. Roller pair according to claim 1 or 2, characterised in that the second drive shaft (42) is coupled via a gear mechanism (30, 32) to the first drive shaft (22).
  4. Roller pair according to any of claims 1 to 3, characterised in that the second roller (14) is hollow and inside comprises a drive flange (60) which is pivotally mounted by means of a roller bearing (56, 58) about a horizontal axis to a sleeve-shaped bearing component (50) through which the articulated shaft (62) is guided and which for its part is pivotally mounted on the frame via a horizontal axis.
  5. Roller pair according to claim 3 or 4, characterised in that the frame comprises a vertical base plate (10) on which a drive motor (20) is flange mounted on one side, on the other side of the base plate (10) a gear housing (28) for the gear mechanism is attached and the second roller (14) is pivotally mounted on the outer side of the gear housing (28).
  6. Roller pair according to any of claims 3 to 5, characterised in that the gear mechanism comprises two spur gears (30, 32).
  7. Roller pair according to claim 1, characterised in that the second roller (14) is driven via a separate second drive (80).
  8. Roller pair according to claim 7, characterised in that a hydraulic or pneumatic motor (80) is provided as the second drive.
  9. Roller pair according to claim 7 or 8, characterised in that the second drive (80) is coupled via a freewheel mechanism (82) to the second roller (14).
  10. Roller pair according to any of claims 7 to 9, characterised in that the second drive (80) is driven with a torque which compensates the frictional wear and tear of the bearing.
EP03732427A 2002-06-20 2003-05-20 Roll pair for stretching strips of filter material Expired - Lifetime EP1513421B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10227378A DE10227378B4 (en) 2002-06-20 2002-06-20 Roller pair for tensioning strands of filter material
DE10227378 2002-06-20
PCT/EP2003/005287 WO2004000046A1 (en) 2002-06-20 2003-05-20 Roll pair for stretching strips of filter material

Publications (2)

Publication Number Publication Date
EP1513421A1 EP1513421A1 (en) 2005-03-16
EP1513421B1 true EP1513421B1 (en) 2006-08-09

Family

ID=29719259

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03732427A Expired - Lifetime EP1513421B1 (en) 2002-06-20 2003-05-20 Roll pair for stretching strips of filter material

Country Status (7)

Country Link
US (1) US7308735B2 (en)
EP (1) EP1513421B1 (en)
AT (1) ATE335413T1 (en)
AU (1) AU2003238363A1 (en)
DE (2) DE10227378B4 (en)
ES (1) ES2266824T3 (en)
WO (1) WO2004000046A1 (en)

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Publication number Priority date Publication date Assignee Title
DE10354924B4 (en) * 2003-11-25 2024-01-18 Körber Technologies Gmbh Device for processing filter tow material and device for producing filters
ITBO20050603A1 (en) * 2005-10-07 2007-04-08 Cnh Italia Spa BATH OIL CLUTCH
ITBO20060165A1 (en) * 2006-03-08 2007-09-09 Gd Spa MACHINE FOR THE PRODUCTION OF CIGARETTE FILTERS.
DE102006049823A1 (en) * 2006-10-19 2008-04-24 Hauni Maschinenbau Ag Apparatus and method for processing filter material for cigarette filters or the like
CN103453118A (en) * 2013-08-30 2013-12-18 湖北中烟工业有限责任公司 Double-bearing over-positioning device
CN105852205A (en) * 2016-04-28 2016-08-17 宜兴市新建烟机配件有限公司 Polyurethane rubber roller applied to opener for cigarette filter tip
CH712427A1 (en) * 2016-05-02 2017-11-15 Rieter Ag Maschf Drafting of a textile machine.

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US2790208A (en) * 1954-03-15 1957-04-30 Eastman Kodak Co Method and means for opening crimped continuous filament tow
GB974512A (en) * 1960-06-17 1964-11-04 Eastman Kodak Co An improved process and apparatus for the manufacture of uniformly crimped filamentary tow
DE1280114B (en) * 1963-04-19 1968-10-10 Kurashiki Rayon Co Device for loosening a crimped, continuous fiber strand for cigarette filters
GB1132984A (en) * 1965-04-01 1968-11-06 Courtaulds Ltd Process and apparatus for opening tow
NL7002258A (en) * 1969-02-21 1970-08-25
DE7016570U (en) * 1970-05-02 1971-02-25 Glanzstoff Ag ADJUSTABLE GALLET EXTRACTOR.
CH557194A (en) * 1972-10-28 1974-12-31 Bellmer Geb Kg Maschf FILTER PRESS.
US4759247A (en) * 1987-10-22 1988-07-26 Bernal Rotary Systems, Inc. Rotary dies with adjustable cutter force
US5678774A (en) * 1995-12-18 1997-10-21 Etc. Industries Inc. Fiberglass cutting apparatus and method
DE19712417A1 (en) * 1997-03-25 1998-10-01 Schaeffler Waelzlager Ohg Pinch roller for textile machines
DE10210357B4 (en) * 2002-03-08 2005-12-22 Voith Paper Patent Gmbh roll arrangement
DE20309301U1 (en) * 2003-06-13 2003-08-28 Stowe Woodward AG, 33758 Schloß Holte-Stukenbrock Spreader roll
US7305739B2 (en) * 2004-09-15 2007-12-11 Celanese Acetate, Llc Apparatus for tow opening
DE102005023992A1 (en) * 2005-05-20 2006-11-23 TRüTZSCHLER GMBH & CO. KG Device on a spinning preparation machine, e.g. Carding, carding, track, combing machine or the like, for determining the mass and / or mass variations of a fiber material, e.g. at least one sliver, non-woven fabric or the like., Of cotton, chemical fibers o. The like.

Also Published As

Publication number Publication date
DE10227378A1 (en) 2004-01-08
WO2004000046A1 (en) 2003-12-31
EP1513421A1 (en) 2005-03-16
US7308735B2 (en) 2007-12-18
ES2266824T3 (en) 2007-03-01
DE10227378B4 (en) 2008-07-17
US20060179615A1 (en) 2006-08-17
AU2003238363A1 (en) 2004-01-06
DE50304585D1 (en) 2006-09-21
ATE335413T1 (en) 2006-09-15

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