EP1777180B1 - Device for the support of rolls of a weblike material - Google Patents

Device for the support of rolls of a weblike material Download PDF

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Publication number
EP1777180B1
EP1777180B1 EP20060017938 EP06017938A EP1777180B1 EP 1777180 B1 EP1777180 B1 EP 1777180B1 EP 20060017938 EP20060017938 EP 20060017938 EP 06017938 A EP06017938 A EP 06017938A EP 1777180 B1 EP1777180 B1 EP 1777180B1
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EP
European Patent Office
Prior art keywords
bearing mandrel
roll
flanged wheels
stands
bearing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
Application number
EP20060017938
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German (de)
French (fr)
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EP1777180A3 (en
EP1777180A2 (en
Inventor
Joachim Hullen
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.)
Wincor Nixdorf International GmbH
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Wincor Nixdorf International GmbH
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Publication of EP1777180A2 publication Critical patent/EP1777180A2/en
Publication of EP1777180A3 publication Critical patent/EP1777180A3/en
Application granted granted Critical
Publication of EP1777180B1 publication Critical patent/EP1777180B1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H16/00—Unwinding, paying-out webs
    • B65H16/02—Supporting web roll
    • B65H16/06—Supporting web roll both-ends type

Definitions

  • the invention relates to a device for supporting rolls of a web-shaped material, in particular a print carrier web such as paper, which is wound on a tubular roll core, comprising two spaced-apart stand with receptacles for the end portions of a bearing mandrel, which is intended for attachment of a roll core and flanged wheels for the axial fixing of the roll core on the bearing mandrel.
  • the axis of the paper roll coincides with the axis of the bearing mandrel.
  • the flanged wheels which hold the print carrier roll in a specific axial position on the bearing mandrel, have a diameter which is greater than the core diameter of the print carrier roll, and can usually be fixed on the bearing mandrel at a distance of the paper width.
  • bearing mandrel is divided, the two parts can be telescoped together and each of these parts carries a flanged wheel.
  • the invention has the object of providing a device of the type mentioned in such a way that the roll change is simplified and one and the same bearing mandrel can be used for different roles.
  • This object is achieved in that the bearing mandrel is in one piece and that the outer diameter of the flanged wheels is smaller than the inner diameter of the roll core.
  • the invention is based on the recognition that the paper roll usually does not necessarily have to be mounted coaxially to the bearing mandrel and the bearing mandrel does not have to correspond to the inner diameter of the roll core.
  • the bearing pin can be pushed together with a flanged wheel through the roller core, the roller then depends on the outside of connected to the flanged bushings. So you only need a bearing pin with flanged wheels for a variety of paper rolls, provided that the inner diameter of the roll core is not smaller than the outer diameter of the flanged wheels.
  • the bearing mandrel does not need to be disassembled.
  • the bearing mandrel according to the invention has at least part of its axial length an external thread which engages in openings of the flanged wheels provided with a complementary internal thread.
  • the bearing mandrel has symmetrical to its longitudinal center two external thread sections with opposite directions of rotation, which respectively engage in the provided with the internal thread opening of a flange, wherein the bearing mandrel is rotatably mounted in the receptacles of the stand and the flanged wheels can be coupled against rotation with the uprights.
  • This can be changed by turning the bearing pin in the uprights conveniently the position of both flanged wheels on the bearing mandrel and thus their mutual distance.
  • the rotation-proof coupling between the flanged wheels and the uprights can for example be such that the flanged wheels are guided displaceably on a rod directed parallel to the bearing pin axis, whose ends are held in the uprights.
  • the same goal can also be achieved by axially directed projections on the flanged wheels, which engage with their free end in each case in a recess of the stand facing them.
  • this solution usually allows only a relatively small displacement of the flange.
  • the bearing pin To be able to rotate the bearing pin comfortably in its holder, it is expedient if at least one of the axial ends of the bearing pin protrudes beyond the associated stand and is connected to a rotary handle. In order to be able to conveniently remove the bearing mandrel for a roll change from the recordings, it is expedient if the recordings for the bearing mandrel are formed by upwardly open recesses in the uprights.
  • the invention further relates to a printer with a holding device for a print carrier roll, in particular paper roll, of the type described above.
  • a paper roll designated 10 with a tubular roll core 12, on which a paper web 14 is wound.
  • the paper roll 10 is mounted on a generally designated 16 bearing mandrel, which is held by two uprights 18 which are fixed at a distance from each other on a bottom plate 20.
  • the stands have according to Fig.2 at its upper end in each case an upwardly open recess 22, in which the bearing pin 16 is mounted, as this Fig.1 shows.
  • the bearing mandrel has at its ends each provided with a knurled rotary handle an annular groove 26, in which the edges of the recess 22 engage, so that the bearing mandrel Although rotatable in the recesses 22, but is axially fixed.
  • the bearing mandrel 16 has on its outer side symmetrical to its axial center two threaded sections 28 with different directions of rotation.
  • a bush 30 Arranged on these threaded sections 28 is a bush 30 provided with a complementary internal thread, which carries a larger flanged disk 32 at its end facing the respective rotary handle 24.
  • stiffening cams 34 are provided.
  • the flanged wheels 32 serve to fix the axial position of the paper roll 10 on the bearing mandrel 16, as this Fig.1 shows.
  • Parallel to the bearing pin 16 extends over its entire length a preferably made of metal rod 36, which passes through eyes 38 on the sockets or flanges. If the bearing pin 16 is suspended in the receiving recesses 22, the rod 36 engages in a slot-shaped extension 40 of the respective recess 22. Thus, the sockets 30 and the flanged wheels 32 are non-rotatably coupled to the uprights 18. If the bearing mandrel is rotated in the recesses 22 by means of the rotary handles 24, the bushings 30 are moved towards or away from each other depending on the direction of rotation.
  • the outer diameter of a flange 32 is smaller than the inner diameter of the schematically indicated roll core 12.
  • the Roll core 12 are pushed over the flange 32 until it is between the two flanged wheels 32.
  • this corresponds to the top of the jacks 30 when hanging in the recesses 22 bearing mandrel 16, no stiffening cam 34 is present, the roll core 12 is located on the circumference of the sockets 30, as is the Fig.1 can be seen. In this position, an axial movement of the roller core relative to the bearing pin 16 is prevented by the flanged wheels 32, since the flanged wheels 32 partially overlap the inner diameter of the roller core 12 due to the eccentric position of the paper roll 10 on the bearing pin 16.
  • the role change is so extremely simple with the mounting device according to the invention and does not require disassembly of the bearing mandrel 16. This only needs to be removed from the recesses 22. It can be used all paper rolls in which the inner diameter of the roll core is greater than the outer diameter of the flanged wheels 32. At the same time, the axial spacing of the flanged wheels 32 can be adapted to the axial width of the rollers 10 in an extraordinarily simple manner by turning the rotary handle 24.
  • the bearing mandrel 16 can cost-effectively integrally made of plastic, z. B. be injected.

Landscapes

  • Unwinding Webs (AREA)
  • Replacement Of Web Rolls (AREA)
  • Storage Of Web-Like Or Filamentary Materials (AREA)

Description

Die Erfindung betrifft eine Vorrichtung zur Halterung von Rollen eines bahnförmigen Materials, insbesondere einer Druckträgerbahn wie Papier, die auf einen hülsenförmigen Rollenkern aufgewickelt ist, umfassend zwei in einem Abstand voneinander angeordnete Ständer mit Aufnahmen für die Endabschnitte eines Lagerdornes, der zum Aufstecken eines Rollenkernes bestimmt ist und Bordscheiben für die axiale Festlegung des Rollenkernes auf dem Lagerdorn trägt.The invention relates to a device for supporting rolls of a web-shaped material, in particular a print carrier web such as paper, which is wound on a tubular roll core, comprising two spaced-apart stand with receptacles for the end portions of a bearing mandrel, which is intended for attachment of a roll core and flanged wheels for the axial fixing of the roll core on the bearing mandrel.

Um beispielsweise Rollenpapier in einem Drucker zu verarbeiten, muss in den meisten Fällen das Papier mittels eines zum Durchmesser des Papierrollenkernes passenden Dornes in einer Aufhängung gehalten werden. Aufgrund der Vielfalt der am Markt verfügbaren Papierrollen bezüglich ihres Durchmessers, der Papierbreite und des Kerndurchmessers, sind entsprechend viele Halterungsdorne erforderlich. Selbst in einem einzigen System, beispielsweise einem Geldautomaten eines Herstellers sind entsprechend den Wünschen unterschiedlicher Kunden verschiedene Papierrollenformate im Einsatz. Der Hersteller muss daher eine Vielzahl von unterschiedlichen Halterungsdornen logistisch vorhalten.For example, to process roll paper in a printer, in most cases the paper must be held in a suspension by means of a mandrel fitting the diameter of the roll of paper roll. Due to the variety of available paper rolls in terms of their diameter, the paper width and the core diameter, a corresponding number of holding mandrels are required. Even in a single system, such as a cash machine of a manufacturer, different paper roll formats are used according to the wishes of different customers. The manufacturer must therefore provide a variety of different support mandrels logistically.

Typischerweise besteht derzeit ein solcher Halterungs- oder Lagerdorn aus einer Achse, deren Durchmesser dem Innendurchmesser des Rollenkernes entspricht. Damit fällt die Achse der Papierrolle mit der Achse des Lagerdornes zusammen. Die Bordscheiben, welche die Druckträgerrolle in einer bestimmten axialen Position auf dem Lagerdorn halten, haben einen Durchmesser, der größer als der Kerndurchmesser der Druckträgerrolle ist, und können in der Regel auf dem Lagerdorn im Abstand der Papierbreite fixiert werden.Typically, there is currently such a support or bearing mandrel from an axis whose diameter corresponds to the inner diameter of the roll core. Thus, the axis of the paper roll coincides with the axis of the bearing mandrel. The flanged wheels, which hold the print carrier roll in a specific axial position on the bearing mandrel, have a diameter which is greater than the core diameter of the print carrier roll, and can usually be fixed on the bearing mandrel at a distance of the paper width.

Diese Lagerdorne haben den Nachteil, dass sie beim Papierwechsel demontiert werden müssen, um den alten Rollenkern entfernen und die neue Papierrolle einsetzen zu können. Es muss mindestens immer eine Bordscheibe von dem Lagerdorn heruntergenommen werden, damit der Papierwechsel stattfinden kann. Nach dem Wechsel muss der Lagerdorn wieder neu montiert werden.These mandrels have the disadvantage that they must be dismantled when changing paper to remove the old roll core and to use the new paper roll can. At least one flange must always be removed from the bearing mandrel so that the paper can be changed. After changing, the bearing mandrel must be re-assembled.

Eine andere Lösung sieht vor, dass der Lagerdorn geteilt ist, wobei die beiden Teile teleskopisch zusammengesteckt werden können und jeder dieser Teile eine Bordscheibe trägt.Another solution provides that the bearing mandrel is divided, the two parts can be telescoped together and each of these parts carries a flanged wheel.

Die in US 4 065 068 A offenbarte Vorrichtung zur Lagerung von Rollen wird als nächstliegender Stand der Technik angesehen.In the US Pat. No. 4,065,068 Disclosed roller storage apparatus is considered to be the closest prior art.

Der Erfindung liegt die Aufgabe zugrunde, eine Vorrichtung der eingangs genannten Art so auszubilden, dass der Rollenwechsel vereinfacht wird und ein und derselbe Lagerdorn für unterschiedliche Rollen verwendet werden kann.The invention has the object of providing a device of the type mentioned in such a way that the roll change is simplified and one and the same bearing mandrel can be used for different roles.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, dass der Lagerdorn einstückig ist und dass der Außendurchmesser der Bordscheiben kleiner als der Innendurchmesser des Rollenkernes ist.This object is achieved in that the bearing mandrel is in one piece and that the outer diameter of the flanged wheels is smaller than the inner diameter of the roll core.

Die Erfindung beruht auf der Erkenntnis, dass die Papierrolle in der Regel nicht notwendigerweise koaxial zu dem Lagerdorn gelagert sein muss und der Lagerdorn nicht dem Innendurchmesser des Rollenkernes entsprechen muss. Solange der Innendurchmesser des Rollenkernes nicht kleiner als der Außendurchmesser der Bordscheiben ist, kann der Lagerdorn zusammen mit einer Bordscheibe durch den Rollenkern geschoben werden, wobei die Rolle anschließend auf der Außenseite von mit den Bordscheiben verbundenen Buchsen hängt. Man benötigt also nur einen Lagerdorn mit Bordscheiben für eine Vielzahl von Papierrollen, vorausgesetzt, dass der Innendurchmesser des Rollenkerns nicht kleiner ist als der Außendurchmesser der Bordscheiben. Zum Wechsel der Papierrolle braucht der Lagerdorn nicht demontiert zu werden.The invention is based on the recognition that the paper roll usually does not necessarily have to be mounted coaxially to the bearing mandrel and the bearing mandrel does not have to correspond to the inner diameter of the roll core. As long as the inner diameter of the roller core is not smaller than the outer diameter of the flanged wheels, the bearing pin can be pushed together with a flanged wheel through the roller core, the roller then depends on the outside of connected to the flanged bushings. So you only need a bearing pin with flanged wheels for a variety of paper rolls, provided that the inner diameter of the roll core is not smaller than the outer diameter of the flanged wheels. To change the paper roll, the bearing mandrel does not need to be disassembled.

Um den axialen Abstand der Bordscheiben auf einfache Weise an unterschiedliche Breiten des bahnförmigen Materials anpassen zu können, hat der Lagerdorn erfindungsgemäß auf mindestens einem Teil seiner axialen Länge ein Außengewinde, das in mit einem komplementären Innengewinde versehene Öffnungen der Bordscheiben eingreift. Durch Verdrehen der Bordscheiben auf dem Lagerdorn kann somit bequem ihr gegenseitiger Abstand an die Bahnbreite der Druckträgerrolle angepasst werden.In order to be able to adapt the axial spacing of the flanged wheels in a simple manner to different widths of the web-shaped material, the bearing mandrel according to the invention has at least part of its axial length an external thread which engages in openings of the flanged wheels provided with a complementary internal thread. By rotating the flanged wheels on the bearing mandrel can thus be easily adjusted their mutual distance to the web width of the print carrier roll.

Bei einer bevorzugten Ausführungsform der erfindungsgemäßen Vorrichtung hat der Lagerdorn symmetrisch zu seiner Längsmitte zwei Außengewindeabschnitte mit gegenläufigem Drehsinn, die jeweils in die mit dem Innengewinde versehene Öffnung einer Bordscheibe eingreifen, wobei der Lagerdorn in den Aufnahmen der Ständer drehbar gelagert ist und die Bordscheiben mit den Ständern verdrehsicher koppelbar sind. Dadurch kann durch Drehen des Lagerdorns in den Ständern bequem die Lage beider Bordscheiben auf dem Lagerdorn und damit ihr gegenseitiger Abstand verändert werden.In a preferred embodiment of the device according to the invention, the bearing mandrel has symmetrical to its longitudinal center two external thread sections with opposite directions of rotation, which respectively engage in the provided with the internal thread opening of a flange, wherein the bearing mandrel is rotatably mounted in the receptacles of the stand and the flanged wheels can be coupled against rotation with the uprights. This can be changed by turning the bearing pin in the uprights conveniently the position of both flanged wheels on the bearing mandrel and thus their mutual distance.

Die verdrehsichere Kopplung zwischen den Bordscheiben und den Ständern kann beispielsweise so erfolgen, dass die Bordscheiben an einer parallel zur Lagerdornachse gerichteten Stange verschiebbar geführt sind, deren Enden in den Ständern gehalten sind. Das gleiche Ziel lässt sich auch durch axial gerichtete Fortsätze an den Bordscheiben erzielen, die mit ihrem freien Ende jeweils in einer Aussparung des ihnen zugewandten Ständers eingreifen. Jedoch lässt diese Lösung in der Regel nur einen relativ geringen Verschiebeweg der Bordscheibe zu.The rotation-proof coupling between the flanged wheels and the uprights can for example be such that the flanged wheels are guided displaceably on a rod directed parallel to the bearing pin axis, whose ends are held in the uprights. The same goal can also be achieved by axially directed projections on the flanged wheels, which engage with their free end in each case in a recess of the stand facing them. However, this solution usually allows only a relatively small displacement of the flange.

Um den Lagerdorn bequem in seiner Halterung drehen zu können, ist es zweckmäßig, wenn mindestens eines der axialen Enden des Lagerdorns über den zugehörigen Ständer hinausragt und mit einem Drehgriff verbunden ist. Um den Lagerdorn für einen Rollenwechsel bequem aus den Aufnahmen herausnehmen zu können, ist es zweckmäßig, wenn die Aufnahmen für den Lagerdorn von nach oben offenen Aussparungen in den Ständern gebildet sind.To be able to rotate the bearing pin comfortably in its holder, it is expedient if at least one of the axial ends of the bearing pin protrudes beyond the associated stand and is connected to a rotary handle. In order to be able to conveniently remove the bearing mandrel for a roll change from the recordings, it is expedient if the recordings for the bearing mandrel are formed by upwardly open recesses in the uprights.

Die Erfindung betrifft ferner einen Drucker mit einer Halterungsvorrichtung für eine Druckträgerrolle, insbesondere Papierrolle, der vorstehend beschriebenen Art.The invention further relates to a printer with a holding device for a print carrier roll, in particular paper roll, of the type described above.

Weitere Merkmale und Vorteile der Erfindung ergeben sich aus der folgenden Beschreibung, welche in Verbindung mit den beigefügten Zeichnungen die Erfindung anhand eines Ausführungsbeispieles erläutert. Es zeigen:

Fig.1
eine schematische perspektivische Gesamtan- sicht einer zum Einbau in einen Drucker be- stimmten erfindungsgemäßen Halterungsvor- richtung für eine Papierrolle,
Fig.2
eine schematische Ansicht des oberen Ab- schnittes eines Ständers und
Fig.3
eine perspektivische Seitenansicht eines La- gerdornes zusammen mit dem Ende eines Rol- lenkernes.
Further features and advantages of the invention will become apparent from the following description, which explains the invention with reference to an embodiment in conjunction with the accompanying drawings. Show it:
Fig.1
3 shows a schematic perspective overall view of a holding device for a paper roll according to the invention intended for installation in a printer,
Fig.2
a schematic view of the upper portion of a stand and
Figure 3
a perspective side view of a bearing mandrel together with the end of a roller core.

In der Fig.1 erkennt man eine mit 10 bezeichnete Papierrolle mit einem hülsenförmigen Rollenkern 12, auf den eine Papierbahn 14 aufgewickelt ist. Die Papierrolle 10 ist auf einem allgemein mit 16 bezeichneten Lagerdorn gelagert, der von zwei Ständern 18 gehalten ist, die in einem Abstand voneinander an einer Bodenplatte 20 befestigt sind. Die Ständer haben dabei gemäß Fig.2 an ihrem oberen Ende jeweils eine nach oben offene Aussparung 22, in welche der Lagerdorn 16 eingehängt ist, wie dies Fig.1 zeigt. Der Lagerdorn hat dabei an seinen jeweils mit einem gerändelten Drehgriff versehenen Enden eine Ringnut 26, in welche die Ränder der Aussparung 22 eingreifen, so dass der Lagerdorn in den Aussparungen 22 zwar drehbar, aber axial fixiert ist.In the Fig.1 recognizes a paper roll designated 10 with a tubular roll core 12, on which a paper web 14 is wound. The paper roll 10 is mounted on a generally designated 16 bearing mandrel, which is held by two uprights 18 which are fixed at a distance from each other on a bottom plate 20. The stands have according to Fig.2 at its upper end in each case an upwardly open recess 22, in which the bearing pin 16 is mounted, as this Fig.1 shows. The bearing mandrel has at its ends each provided with a knurled rotary handle an annular groove 26, in which the edges of the recess 22 engage, so that the bearing mandrel Although rotatable in the recesses 22, but is axially fixed.

Der Lagerdorn 16 hat auf seiner Außenseite symmetrisch zu seiner axialen Mitte zwei Gewindeabschnitte 28 mit unterschiedlichem Drehsinn. Auf diesen Gewindeabschnitten 28 ist jeweils eine mit einem komplementären Innengewinde versehene Buchse 30 angeordnet, die an ihrem dem jeweiligen Drehgriff 24 zugewandten Ende eine durchmessergrößere Bordscheibe 32 trägt. Um die Verbindung zwischen der Buchse 30 und der Bordscheibe 32 zu verstärken, sind Versteifungsnocken 34 vorgesehen. Die Bordscheiben 32 dienen dazu, die axiale Position der Papierrolle 10 auf dem Lagerdorn 16 festzulegen, wie dies Fig.1 zeigt.The bearing mandrel 16 has on its outer side symmetrical to its axial center two threaded sections 28 with different directions of rotation. Arranged on these threaded sections 28 is a bush 30 provided with a complementary internal thread, which carries a larger flanged disk 32 at its end facing the respective rotary handle 24. To reinforce the connection between the bush 30 and the flanged wheel 32, stiffening cams 34 are provided. The flanged wheels 32 serve to fix the axial position of the paper roll 10 on the bearing mandrel 16, as this Fig.1 shows.

Parallel zum Lagerdorn 16 erstreckt sich über dessen gesamte Länge eine vorzugsweise aus Metall hergestellte Stange 36, welche Augen 38 an den Buchsen bzw. Bordscheiben durchsetzt. Wird der Lagerdorn 16 in die Aufnahmeaussparungen 22 eingehängt, so greift die Stange 36 in einen schlitzförmigen Fortsatz 40 der jeweiligen Aussparung 22 ein. Damit sind die Buchsen 30 und die Bordscheiben 32 verdrehsicher mit den Ständern 18 gekoppelt. Wird der Lagerdorn in den Aussparungen 22 mit Hilfe der Drehgriffe 24 verdreht, so werden die Buchsen 30 je nach Drehrichtung aufeinander zu oder voneinander weg bewegt.Parallel to the bearing pin 16 extends over its entire length a preferably made of metal rod 36, which passes through eyes 38 on the sockets or flanges. If the bearing pin 16 is suspended in the receiving recesses 22, the rod 36 engages in a slot-shaped extension 40 of the respective recess 22. Thus, the sockets 30 and the flanged wheels 32 are non-rotatably coupled to the uprights 18. If the bearing mandrel is rotated in the recesses 22 by means of the rotary handles 24, the bushings 30 are moved towards or away from each other depending on the direction of rotation.

Wie aus der Fig.3 zu erkennen ist, ist der Außendurchmesser einer Bordscheibe 32 kleiner als der Innendurchmesser des schematisch angedeuteten Rollenkernes 12. Somit kann der Rollenkern 12 über die Bordscheibe 32 geschoben werden, bis er sich zwischen den beiden Bordscheiben 32 befindet. Da auf der Rückseite der in Fig.3 dargestellten Buchsen 30, dies entspricht der Oberseite der Buchsen 30 bei in den Aussparungen 22 hängendem Lagerdorn 16, kein Versteifungsnocken 34 vorhanden ist, liegt der Rollenkern 12 auf dem Umfang der Buchsen 30 auf, wie dies der Fig.1 zu entnehmen ist. In dieser Lage wird eine axiale Bewegung des Rollenkerns relativ zum Lagerdorn 16 durch die Bordscheiben 32 verhindert, da die Bordscheiben 32 den Innendurchmesser des Rollenkernes 12 aufgrund der exzentrischen Lage der Papierrolle 10 auf dem Lagerdorn 16 teilweise übergreifen.Like from the Figure 3 can be seen, the outer diameter of a flange 32 is smaller than the inner diameter of the schematically indicated roll core 12. Thus, the Roll core 12 are pushed over the flange 32 until it is between the two flanged wheels 32. As on the back of the in Figure 3 shown jacks 30, this corresponds to the top of the jacks 30 when hanging in the recesses 22 bearing mandrel 16, no stiffening cam 34 is present, the roll core 12 is located on the circumference of the sockets 30, as is the Fig.1 can be seen. In this position, an axial movement of the roller core relative to the bearing pin 16 is prevented by the flanged wheels 32, since the flanged wheels 32 partially overlap the inner diameter of the roller core 12 due to the eccentric position of the paper roll 10 on the bearing pin 16.

Der Rollenwechsel ist mit der erfindungsgemäßen Halterungsvorrichtung also außerordentlich einfach und erfordert keine Demontage des Lagerdornes 16. Dieser muss lediglich aus den Aussparungen 22 herausgenommen werden. Es können sämtliche Papierrollen verwendet werden, bei denen der Innendurchmesser des Rollenkernes größer als der Außendurchmesser der Bordscheiben 32 ist. Gleichzeitig kann der axiale Abstand der Bordscheiben 32 auf außerordentlich einfache Weise durch Drehen an dem Drehgriff 24 exakt an die axiale Breite der Rollen 10 angepasst werden. Der Lagerdorn 16 kann kostensparend einstückig aus Kunststoff gefertigt, z. B. gespritzt werden.The role change is so extremely simple with the mounting device according to the invention and does not require disassembly of the bearing mandrel 16. This only needs to be removed from the recesses 22. It can be used all paper rolls in which the inner diameter of the roll core is greater than the outer diameter of the flanged wheels 32. At the same time, the axial spacing of the flanged wheels 32 can be adapted to the axial width of the rollers 10 in an extraordinarily simple manner by turning the rotary handle 24. The bearing mandrel 16 can cost-effectively integrally made of plastic, z. B. be injected.

Claims (8)

  1. Apparatus for retaining rolls (10) of a web-like material (14), in particular of a printing-carrier web such as paper, which has been wound up onto a sleeve-like roll core (12), comprising two spaced-apart stands (18) with mounts (22) for the end portions of a bearing mandrel (16), which is intended to have the roll core (12) plugged onto it and which bears flanged wheels (32), of which the diameter is greater than the diameter of the bearing mandrel (16) and which define the axial position of the roll core (12) on the bearing mandrel (16), characterized in that the bearing mandrel (16) is in one piece, and in that the diameter of the flanged wheels (32) is smaller than the internal diameter of the roll core (12).
  2. Apparatus according to Claim 1, characterized in that the bearing mandrel (16) has, over at least part of its axial length, an external thread (28), which engages in openings in the flanged wheels (32), these openings being provided with a complementary internal thread.
  3. Apparatus according to Claim 2, characterized in that the bearing mandrel (16) has, symmetrically in relation to its longitudinal centre, two externally threaded portions (28) which have oppositely running directions of rotation and each engage in the internally threaded opening in a flanged wheel (32), and in that the bearing mandrel (16) is mounted in a rotatable manner in the mounts (22) of the stands (18), and in that the flanged wheels (32) can be coupled to the stands (18) so as to be secured against rotation.
  4. Apparatus according to Claim 3, characterized in that the flanged wheels (32) are guided in a displaceable manner on a rod (36), which is directed parallel to the axis of the bearing mandrel and of which the ends are retained in the stands (18).
  5. Apparatus according to one of Claims 1 to 4, characterized in that the mounts for the bearing mandrel (16) are formed by cutouts (22) in the stands (18), these cutouts being open in the upward direction.
  6. Apparatus according to one of Claims 3 to 5, characterized in that at least one of the axial ends of the bearing mandrel (16) projects beyond the associated stand (18) and is connected to a rotary handle (24).
  7. Apparatus according to Claim 6, characterized in that the bearing mandrel (16) is produced in a single piece from plastics material.
  8. Printer, characterized by an apparatus for retaining a printing-carrier roll (10), in particular paper roll, according to one of Claims 1 to 7.
EP20060017938 2005-10-20 2006-08-29 Device for the support of rolls of a weblike material Not-in-force EP1777180B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200510050335 DE102005050335B4 (en) 2005-10-20 2005-10-20 Device for holding rolls of a web-shaped material

Publications (3)

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EP1777180A2 EP1777180A2 (en) 2007-04-25
EP1777180A3 EP1777180A3 (en) 2007-10-31
EP1777180B1 true EP1777180B1 (en) 2012-03-07

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JP2013220876A (en) * 2012-04-16 2013-10-28 Sato Holdings Corp Roll holder
CN108046058A (en) * 2017-12-26 2018-05-18 广东工业大学 A kind of synchronous belt wrap-up

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US1186191A (en) * 1916-01-03 1916-06-06 Frank H Hoberg Paper-reel.
US4065068A (en) * 1976-10-06 1977-12-27 John William Treadwell Adding machine tape reversing rewinder
US6056234A (en) * 1999-04-05 2000-05-02 Gmp Co., Ltd. Device for adjusting the position of film rolls in laminator
DE19916697A1 (en) * 1999-04-14 2000-10-19 Schaefer Gmbh Fixing device material wound on to a hollow cylindrical core, e.g. textile, comprises locking and centering section and a positioning and centering section, both of which are attached to winding axle and between which core can be locked
JP2001192152A (en) * 2000-01-11 2001-07-17 Fuji Photo Film Co Ltd Paper feeding magazine
US6345781B1 (en) * 2000-07-27 2002-02-12 Metal Accessories, Llc Payoff apparatus
JP2002308534A (en) * 2001-04-12 2002-10-23 Japan Aviation Electronics Industry Ltd Reel member mounting structure
GB2385581B (en) * 2002-02-22 2004-01-21 David Molloy Paper roll - stabilising bar

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DE102005050335B4 (en) 2010-04-01
DE102005050335A1 (en) 2007-05-03
EP1777180A3 (en) 2007-10-31
EP1777180A2 (en) 2007-04-25

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