EP2058259B1 - Winding core assembly for a roll winding device, winding core and roll winding device - Google Patents

Winding core assembly for a roll winding device, winding core and roll winding device Download PDF

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Publication number
EP2058259B1
EP2058259B1 EP08165668A EP08165668A EP2058259B1 EP 2058259 B1 EP2058259 B1 EP 2058259B1 EP 08165668 A EP08165668 A EP 08165668A EP 08165668 A EP08165668 A EP 08165668A EP 2058259 B1 EP2058259 B1 EP 2058259B1
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EP
European Patent Office
Prior art keywords
winding core
winding
extension
axial
recess
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EP08165668A
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German (de)
French (fr)
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EP2058259A3 (en
EP2058259A2 (en
Inventor
Georg Müller
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Voith Patent GmbH
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Voith Patent GmbH
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H75/00Storing webs, tapes, or filamentary material, e.g. on reels
    • B65H75/02Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
    • B65H75/04Kinds or types
    • B65H75/08Kinds or types of circular or polygonal cross-section
    • B65H75/10Kinds or types of circular or polygonal cross-section without flanges, e.g. cop tubes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00Handling processes for sheets or webs
    • B65H2301/40Type of handling process
    • B65H2301/41Winding, unwinding
    • B65H2301/414Winding
    • B65H2301/4148Winding slitting
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00Handled material; Storage means
    • B65H2701/50Storage means for webs, tapes, or filamentary material
    • B65H2701/53Adaptations of cores or reels for special purposes
    • B65H2701/534Stackable or interlockable reels or parts of reels

Definitions

  • the invention relates to a winding tube arrangement for a roll winding device having at least one first winding tube and a second winding tube adjacent in the axial direction, each winding tube having on the circumference a contact surface for a material web and a first axial end and a second axial end, wherein the first winding tube at the first end an axially projecting beyond the contact surface extension whose maximum outer diameter is smaller than the outer diameter of the first winding tube in the region of the contact surface and which projects into a recess at the second end of the second winding tube, and the extension has at least one radial outer projection, behind a radial inwardly projecting projection engages in the recess.
  • the invention relates to a winding tube for such a winding tube arrangement around a roll winding device with such a winding tube arrangement.
  • a winding tube arrangement with the associated winding sleeves serves to wind a material web, for example a paper web, which arrives in partial webs to partial web rolls.
  • a material web for example a paper web
  • the invention will be described below with reference to a paper web as an example of a material web. But it is also applicable to other webs that need to be handled in a similar manner.
  • a paper web is produced in a relatively large width of up to 10 m. In order to be manageable for a later user, for example a printing company, it must be subdivided into narrower partial webs. These partial webs are then wound in a roll winding device to winding rollers. The core of such a winding roll is a winding tube.
  • a widely used type of reel winder is a so-called double winder roll winder in which two support rolls with parallel axes are arranged adjacent to each other to form a winder bed.
  • the cores are inserted axially one behind the other from one end face into the winding bed.
  • the paper web is glued to the circumference of the winding tube and indeed in the contact surface.
  • the carrier rollers rotate, the cores are rotated and thereby pull the paper webs on it.
  • the paper web is no longer placed directly on the winding tube, but on the underlying layer of the paper web.
  • the bobbins When the bobbins are finished, they are ejected from the wrapping bed, transported away and packed. This is readily possible with bobbins whose axial length is in a favorable ratio to the diameter. This is critical in so-called “narrow rolls", ie rolls from which later, for example, DIN A4 sheets are to be produced. These narrow rollers are difficult to handle after ejection from the winding bed. Although it is possible to pack several such winding rolls together, so that the ratio of axial length to diameter improves again. On the way between the reel winder and the packaging device, however, the problem of handling persists.
  • Winding sleeves are known, which can be rigidly connected to each other by a front-side plug or screw.
  • the invention has for its object to be able to handle small rolls easy.
  • the extension on the first winding tube which engages in the recess on the second winding tube, ensures that the two winding rolls that are wound on these two winding tubes form a composite during winding and especially when ejecting from the winding device.
  • This composite first ensures that the two winding rolls roll coaxially with one another. If the two bobbins remain coaxial, their peripheral surfaces are parallel. The danger that they diverge and then fall over is comparatively low. Additional measures to make such a composite are basically not required.
  • the first winding tube is integrally formed with the extension, ie it requires no fasteners to connect the first and the second winding sleeve together.
  • the connection of the two cores takes place practically automatically when the cores are arranged axially next to each other and acted upon by an axial pressure.
  • a pressure is required in any case to promote the winding tube assembly from the front side into the winding bed into it.
  • the inner projection has an axial length which is smaller than an axial distance between the outer projection and the contact surface.
  • the outer projection has an axial length which is smaller than an axial distance between the inner projection and an axial end of the Recess. The outer projection may then engage behind the inner projection, the same being true as with respect to the inner projection above.
  • the extension has at least one radial outer projection, which engages behind a radially inwardly projecting inner projection in the recess.
  • the outer projection is arranged at the outer axial end of the extension. So you can use the axial length of the extension in full to connect the two cores together.
  • the inner projection is arranged at the outer axial end of the recess.
  • the recess can then be used in full axial length for the connection of the two winding rollers.
  • the outer projection and / or the inner projection on a tapered surface, the slope of which is directed to the axially outer end.
  • the chamfered surface which is designed as a conical lateral surface or part of a conical lateral surface, makes it easier to thread the extension into the recess. Due to the beveled surface, it is possible to slightly compress the projection with the outer projection and / or the inner projection during assembly of the two winding sleeves, so that the outer projection engages behind the inner projection and there is a connection between the two winding sleeves which is not readily axially can be solved.
  • the maximum outer diameter of the outer projection is adapted to the maximum inner diameter of the recess. This can additionally generate a frictional engagement between the outer diameter of the outer projection and the inner diameter of the recess, that the cohesion between the two winding tubes is further improved.
  • the extension has an axial length which is adapted to the axial length of the recess.
  • the two elements that are used to connect the two cores, namely extension and recess, are then adapted to each other so that a thrust load can be absorbed as well as possible.
  • the first winding tube is formed as a tube with a first wall thickness in the region of the contact surface and the extension has a second wall thickness which is in the range of 25 to 50% of the first wall thickness.
  • the extension is therefore stable enough to ensure the axial connection between two adjacent cores. On the other hand, if the two cores are to be separated, it can be destroyed without requiring excessively large forces. If necessary, you can pull apart the two rolls a bit far and then sever the extension using a benchgeschnur.
  • the object is also achieved by a winding tube for such a winding tube arrangement, which has the extension at the first end and the recess at the second end.
  • the winding tube assembly may then be formed of identically constructed cores, which are easy in the axial direction be arranged one behind the other.
  • the object is also achieved by a roller winding device with a winding tube arrangement, as described above.
  • the roll winding device starts, then the winding tube assembly is in the winding bed as a composite.
  • This bond is also maintained when the reel winder starts and winds the sub-webs into winder rolls.
  • a bobbin arrangement 1 has a first winding tube 2 and a second winding tube 3, which are arranged adjacent to each other in the axial direction.
  • the winding tube 2 has on the circumference of a contact surface 4, to which a web can be brought to bear when this web is to be wound into a winding roll 5.
  • the winding tube 2 is otherwise provided with a continuous, hollow cylindrical cavity 6.
  • the winding tube 2 has a first axial end, which in the Figures 1 and 2 you can see. At this first end, the winding tube 2 has an extension 7, which projects beyond the contact surface 4 in the axial direction. At the axially outer end, the extension has a radially outwardly projecting projection 8, which is accordingly also referred to as "outer projection".
  • the outer projection 8 may be circumferential and continuous in the circumferential direction. He may also have interruptions.
  • the outer projection 8 has a conically tapered surface 9.
  • the extension can have a plurality of slots 10 distributed in the circumferential direction. But this is not absolutely necessary.
  • the outer projection 8 has an axial length a, which has an order of magnitude in the range of 1 to 3 mm. Between the axially inner end of the outer projection 8 and the contact surface results in a distance b, which has an order of magnitude in the range of 2 to 4 mm. The distance b is larger by about 1 mm than the axial extent of the outer projection 8.
  • the representation in the drawing is not to scale here.
  • the second winding tube 3 also has on the circumference on a contact surface 11 on which a winding roller 12 is formed when the winding tube 3 is rotated.
  • the winding tube 3 is formed as a hollow body and surrounds a cavity thirteenth
  • the winding tube 3 has a first end, which in the Figures 1 and 2 is not visible. It may also be smooth, so without the corresponding engagement geometry be formed when the winding tube assumes a marginal position or a connection between two cores is not desired at a certain position.
  • the winding tube 3 has a second end with a recess 14, whose inner diameter is increased compared to the inner diameter of the cavity 13.
  • an inner projection 15 radially into it.
  • the inner projection 15 has a conically tapered surface 16.
  • the inner projection 15 may be closed circumferentially. It may also be interrupted in the direction of rotation, wherein the interruptions in this case are preferably the same as circumferentially continuous areas of the outer projection 8. In this case, the interruptions of the inner projection 15 should be about the same size as the remaining portions of the inner projection 15th
  • the inner projection 15 has an axial extent c whose size is in the range of 1 to 3 mm.
  • the recess 14 has, between the inner projection 15 and an axial end 18, an axial extent d whose size is in the range of 2 to 4 mm.
  • the presentation of the Figures 1 and 2 is not relevant in this regard.
  • the distance d is larger by about 1 mm than the axial extent c.
  • the axially front end of the outer projection 8 coincides with its outer diameter approximately to the inner diameter of the axially outer end of the inner projection 15.
  • the outer projection 8 is provided here with a slightly smaller diameter, so that the two surfaces 9, 16 can be brought into contact with each other.
  • the distance d in the recess 14 is greater than the axial extent of the outer projection a, so that the outer projection a in the recess can spring freely to the outside.
  • the extent c of the inner projection 15 is greater than the distance b between the outer projection 8 and the abutment surface 4, so that, as in Fig. 2 can be seen, for both the outer projection 8 and the inner projection 15 is enough space available.
  • the slots 10 are omitted. Whether the slots 10 are required depends on the material of the cores 2, 3.
  • the outer projection 8 has a maximum outer diameter, which is adapted to the inner diameter of the recess 14. This results in a slight frictional engagement between the outer projection 8 and the inner surface of the recess 14.
  • the inner projection 15 has an inner diameter which is adapted to the outer diameter of the extension 7 between the outer projection 8 and the abutment surface 4.
  • the inner projection 15 is thus, as in Fig. 2 is shown, on the outer diameter of the extension 7 at. Under certain circumstances, it may be advantageous if, when the winding cores 2, 3 are plugged together, the outer projection 8 and / or the inner projection 15 are still slightly compressed in order to increase the frictional forces.
  • the extension 7 has outside the outer projection 8 on a wall thickness which is an order of magnitude in the range of 25 to 50% of the wall thickness of the winding tube 2 in the region of the contact surface.
  • the first winding tube 2 has a second end, which may be designed in the same way as the second end of the winding tube 3.
  • This engagement allows due to the dimensioning of the projections 8, 15 and the distances b, c a mobility in the axial direction of about 1 mm.
  • the two cores 2, 3 thus form a relatively stable composite. They are rotated together, so that the winding rollers 5, 12 can form.
  • the two winding rollers if several such winding tubes 2, 3 are included in the composite, of course, several bobbins in the composite may be present
  • the two projections 8, 15 prevent the two winding rollers 5, 12 separate in the axial direction.
  • winding rolls can be handled, in which the ratio of diameter to axial length is unfavorable. If such narrow rollers run in the composite, they are less likely to tip over.
  • the two projections 8, 15 may possibly be damaged. This is not critical. It may also be the case that the extension 7 breaks or breaks at any point. You can also pull the two bobbins 5, 12 by the mentioned millimeter, which results from the play of the outer projection behind the inner projection, (or a corresponding size) apart, so that there is a gap 17, through which a SAgeschnur or a Saw blade can lead to saw through the extension 7.
  • the geometries at the two ends of the cores 2, 3 can be relatively easily produced by turning or another machining production.
  • the slots 10, if they should be required, can be easily sawed. It is expedient if two slots 10 are diametrically opposed.

Landscapes

  • Storage Of Web-Like Or Filamentary Materials (AREA)
  • Winding Of Webs (AREA)

Abstract

The arrangement has a winding core (2) and another winding core (3), which are arranged adjacent to each other in an axial direction, where each core has a bearing surface (4) for a material web. The winding core (2) has an axial extension (7) projecting in the bearing surface, where maximum outer diameter of the extension is smaller than outer diameter of the winding core (2). The extension extends into a recess (14) at an end of the winding core (3). The extension has a radial outer projection (8) that is arranged at an outer axial end of the extension.

Description

Die Erfindung betrifft eine Wickelhülsenanordnung für eine Rollenwickeleinrichtung mit mindestens einer ersten Wickelhülse und einer in Axialrichtung benachbarten zweiten Wickelhülse, wobei jede Wickelhülse am Umfang eine Anlagefläche für eine Materialbahn sowie ein erstes axiales Ende und ein zweites axiales Ende aufweist, wobei die erste Wickelhülse am ersten Ende einen axial über die Anlagefläche vorstehenden Fortsatz aufweist, dessen maximaler Außendurchmesser kleiner ist als der Außendurchmesser der ersten Wickelhülse im Bereich der Anlagefläche und der in eine Ausnehmung am zweiten Ende der zweiten Wickelhülse hineinragt, und der Fortsatz mindestens einen radialen Außenvorsprung aufweist, der hinter einen radial nach innen ragenden Vorsprung in der Ausnehmung greift.The invention relates to a winding tube arrangement for a roll winding device having at least one first winding tube and a second winding tube adjacent in the axial direction, each winding tube having on the circumference a contact surface for a material web and a first axial end and a second axial end, wherein the first winding tube at the first end an axially projecting beyond the contact surface extension whose maximum outer diameter is smaller than the outer diameter of the first winding tube in the region of the contact surface and which projects into a recess at the second end of the second winding tube, and the extension has at least one radial outer projection, behind a radial inwardly projecting projection engages in the recess.

Ferner betrifft die Erfindung eine Wickelhülse für eine derartige Wickelhülsenanordnung rund eine Rollenwickeleinrichtung mit einer derartigen Wickelhülsenanordnung.Furthermore, the invention relates to a winding tube for such a winding tube arrangement around a roll winding device with such a winding tube arrangement.

Eine Wickelhülsenanordnung mit den dazugehörigen Wickelhülsen dient dazu, eine Materialbahn, beispielsweise eine Papierbahn, die in Teilbahnen ankommt, zu Teilbahnrollen aufzuwickeln. Die Erfindung wird im Folgenden anhand einer Papierbahn als Beispiel für eine Materialbahn beschrieben. Sie ist aber auch bei anderen Materialbahnen anwendbar, die auf ähnliche Weise gehandhabt werden müssen.A winding tube arrangement with the associated winding sleeves serves to wind a material web, for example a paper web, which arrives in partial webs to partial web rolls. The invention will be described below with reference to a paper web as an example of a material web. But it is also applicable to other webs that need to be handled in a similar manner.

Eine Papierbahn wird in einer relativ großen Breite von bis zu 10 m produziert. Um für einen späteren Anwender, beispielsweise eine Druckerei, handhabbar zu sein, muss sie in schmalere Teilbahnen unterteilt werden. Diese Teilbahnen werden dann in einer Rollenwickeleinrichtung zu Wickelrollen aufgewickelt. Als Kern für eine derartige Wickelrolle dient eine Wickelhülse.A paper web is produced in a relatively large width of up to 10 m. In order to be manageable for a later user, for example a printing company, it must be subdivided into narrower partial webs. These partial webs are then wound in a roll winding device to winding rollers. The core of such a winding roll is a winding tube.

Ein weithin verbreiteter Typ für eine Rollenwickeleinrichtung ist ein so genannter Doppeltragwalzenwickler, bei dem zwei Tragwalzen mit parallelen Achsen benachbart zueinander angeordnet sind und ein Wickelbett bilden. Bevor der Wickelvorgang startet, werden die Wickelhülsen axial hintereinander von einer Stirnseite her in das Wickelbett eingeschoben. Die Papierbahn wird am Umfang der Wickelhülse festgeklebt und zwar in der Anlagefläche. Wenn sich dann die Tragwalzen an Drehung versetzen, werden die Wickelhülsen mitgedreht und ziehen dadurch die Papierbahnen auf sich. Nach der ersten Umdrehung der Wickelhülse wird die Papierbahn nicht mehr unmittelbar auf die Wickelhülse gelegt, sondern auf die darunter liegende Lage der Papierbahn. Vielfach verwendet man auch noch eine Andruckwalze, um die sich bildende Wickelrolle in das Wickelbett zu drücken.A widely used type of reel winder is a so-called double winder roll winder in which two support rolls with parallel axes are arranged adjacent to each other to form a winder bed. Before the winding process starts, the cores are inserted axially one behind the other from one end face into the winding bed. The paper web is glued to the circumference of the winding tube and indeed in the contact surface. Then, when the carrier rollers rotate, the cores are rotated and thereby pull the paper webs on it. After the first revolution of the winding tube, the paper web is no longer placed directly on the winding tube, but on the underlying layer of the paper web. In many cases, you also use a pressure roller to press the forming winding roll in the winding bed.

Wenn die Wickelrollen fertig gestellt sind, werden sie aus dem Wickelbett ausgeworfen, abtransportiert und verpackt. Dies ist bei Wickelrollen, deren axiale, Länge in einem günstigen Verhältnis zum Durchmesser steht, ohne Weiteres möglich. Kritisch wird dies bei so genannten "Schmalrollen", also Rollen, aus denen später beispielsweise DIN A4 Bögen hergestellt werden sollen. Diese Schmalrollen sind nach dem Ausstoßen aus dem Wickelbett schwierig zu handhaben. Man kann zwar mehrere derartige Wickelrollen gemeinsam verpacken, so dass sich das Verhältnis von axialer Länge zu Durchmesser wieder verbessert. Auf dem Weg zwischen der Rollenwickeleinrichtung und der Verpackungseinrichtung bleibt das Problem der Handhabung jedoch bestehen.When the bobbins are finished, they are ejected from the wrapping bed, transported away and packed. This is readily possible with bobbins whose axial length is in a favorable ratio to the diameter. This is critical in so-called "narrow rolls", ie rolls from which later, for example, DIN A4 sheets are to be produced. These narrow rollers are difficult to handle after ejection from the winding bed. Although it is possible to pack several such winding rolls together, so that the ratio of axial length to diameter improves again. On the way between the reel winder and the packaging device, however, the problem of handling persists.

Aus der JP 2003 300674 A sind Wickelhülsen bekannt, die sich durch eine stirnseitige Steck- oder Schraubverbindung starr miteinander verbinden lassen.From the JP 2003 300674 A Winding sleeves are known, which can be rigidly connected to each other by a front-side plug or screw.

Der Erfindung liegt die Aufgabe zugrunde, Schmalrollen einfach handhaben zu können.The invention has for its object to be able to handle small rolls easy.

Diese Aufgabe wird bei einer Wickelhülsenanordnung der eingangs genannten Art dadurch gelöst, dass der Innenvorsprung eine axiale Länge aufweist, die kleiner ist als ein axialer Abstand zwischen dem Außenvorsprung und der Anlagefläche und dass der Außenvorsprung eine axiale Länge aufweist, die kleiner ist als ein axialer Abstand zwischen dem Innenvorsprung und einem axialen Ende der Ausnehmung.This object is achieved in a winding tube assembly of the type mentioned above in that the inner projection has an axial length which is smaller than an axial distance between the outer projection and the contact surface and that the outer projection has an axial length which is smaller than an axial distance between the inner projection and an axial end of the recess.

Als Schmalrollen werden im vorliegenden Fall Rollen angesehen, deren axiale Länge maximal 0,6 m beträgt und deren Durchmesser größer ist als deren axiale Länge.As a narrow rollers are considered in the present case roles whose maximum axial length is 0.6 m and whose diameter is greater than the axial length.

Der Fortsatz an der ersten Wickelhülse, der in die Ausnehmung an der zweiten Wickelhülse eingreift, stellt sicher, dass die beiden Wickelrollen, die auf diesen beiden Wickelhülsen aufgewickelt sind, beim Wickeln und vor allem auch beim Ausstoßen aus der Wickeleinrichtung einen Verbund bilden. Dieser Verbund stellt zunächst sicher, dass die beiden Wickelrollen koaxial miteinander abrollen. Wenn die beiden Wickelrollen koaxial bleiben, sind ihre Umfangsflächen parallel. Die Gefahr, dass sie auseinander laufen und danach umfallen, ist vergleichsweise gering. Zusätzliche Maßnahmen, um einen derartigen Verbund herzustellen, sind im Grunde nicht erforderlich. Die erste Wickelhülse ist mit dem Fortsatz einstückig ausgebildet, d.h. man benötigt keine Verbindungselemente, um die erste und die zweite Wickelhülse miteinander zu verbinden. Das Verbinden der beiden Wickelhülsen erfolgt praktisch automatisch, wenn die Wickelhülsen axial nebeneinander angeordnet und mit einem axialen Druck beaufschlagt werden. Ein derartiger Druck ist aber ohnehin erforderlich, um die Wickelhülsenanordnung von der Stirnseite her in das Wickelbett hinein zu fördern.
Der Innenvorsprung weist eine axiale Länge auf, die kleiner ist als ein axialer Abstand zwischen dem Außenvorsprung und der Anlagefläche. Damit ist es möglich, dass der Innenvorsprung zwischen dem Außenvorsprung und dem Bereich der ersten Wickelhülse einrastet, an dem die Anlagefläche angeordnet ist. Zwischen den beiden Wickelhülsen ist dann zwar eine kleine axiale Bewegung möglich, bis der Außenvorsprung in Anlage an den Innenvorsprung kommt. Diese axiale Bewegungsmöglichkeit kann man aber ausnutzen, um später die beiden Wickelrollen zu trennen.
Der Außenvorsprung weist eine axiale Länge auf, die kleiner ist als ein axialer Abstand zwischen dem Innenvorsprung und einem axialen Ende der Ausnehmung. Der Außenvorsprung kann dann hinter dem Innenvorsprung einrasten, wobei das Gleiche gilt, wie im Hinblick auf den Innenvorsprung oben ausgeführt.
The extension on the first winding tube, which engages in the recess on the second winding tube, ensures that the two winding rolls that are wound on these two winding tubes form a composite during winding and especially when ejecting from the winding device. This composite first ensures that the two winding rolls roll coaxially with one another. If the two bobbins remain coaxial, their peripheral surfaces are parallel. The danger that they diverge and then fall over is comparatively low. Additional measures to make such a composite are basically not required. The first winding tube is integrally formed with the extension, ie it requires no fasteners to connect the first and the second winding sleeve together. The connection of the two cores takes place practically automatically when the cores are arranged axially next to each other and acted upon by an axial pressure. However, such a pressure is required in any case to promote the winding tube assembly from the front side into the winding bed into it.
The inner projection has an axial length which is smaller than an axial distance between the outer projection and the contact surface. Thus, it is possible that the inner projection between the outer projection and the region of the first winding tube engages, on which the contact surface is arranged. Although then a small axial movement is possible between the two cores until the outer projection comes into contact with the inner projection. However, this axial movement possibility can be exploited to later separate the two winding rolls.
The outer projection has an axial length which is smaller than an axial distance between the inner projection and an axial end of the Recess. The outer projection may then engage behind the inner projection, the same being true as with respect to the inner projection above.

Der Fortsatz weist mindestens einen radialen Außenvorsprung auf, der hinter einen radial nach innen ragenden Innenvorsprung in der Ausnehmung greift. Mit dieser Ausgestaltung erzeugt man eine Sicherung dagegen, dass sich die beiden Wickelhülsen und später die beiden darauf gebildeten Wickelrollen in Axialrichtung voneinander trennen. Natürlich ist eine derartige Trennung möglich, wenn man Kräfte anwendet, die größer sind als beim Handhaben der Wickelrollen beim Ausstoßen aus der Wickeleinrichtung und beim Transport von der Wickeleinrichtung zur Rollenpackeinrichtung. Die Gefahr, dass sich die beiden Wickelrollen ungewollt voneinander lösen, ist damit deutlich verringert.The extension has at least one radial outer projection, which engages behind a radially inwardly projecting inner projection in the recess. With this configuration, however, creates a backup against the fact that separate the two cores and later the two winding rolls formed thereon in the axial direction from each other. Of course, such a separation is possible if one uses forces that are greater than when handling the winding rolls when ejected from the winding device and during transport from the winding device to the roll packaging device. The danger of that The two rolls unintentionally separate from each other, thus significantly reduced.

Vorzugsweise ist der Außenvorsprung am äußeren axialen Ende des Fortsatzes angeordnet. Damit kann man die axiale Länge des Fortsatzes in vollem Umfang nutzen, um die beiden Wickelhülsen miteinander zu verbinden.Preferably, the outer projection is arranged at the outer axial end of the extension. So you can use the axial length of the extension in full to connect the two cores together.

Auch ist von Vorteil, wenn der Innenvorsprung am äußeren axialen Ende der Ausnehmung angeordnet ist. Auch die Ausnehmung lässt sich dann in voller axialer Länge für die Verbindung der beiden Wickelrollen nutzen.It is also advantageous if the inner projection is arranged at the outer axial end of the recess. The recess can then be used in full axial length for the connection of the two winding rollers.

Bevorzugterweise weisen der Außenvorsprung und/oder der Innenvorsprung eine abgeschrägte Fläche auf, deren Neigung zum axial äußeren Ende gerichtet ist. Die abgeschrägte Fläche, die als Konusmantelfläche oder Teil einer Konusmantelfläche ausgebildet ist, erleichtert es, den Fortsatz in die Ausnehmung einzufädeln. Durch die abgeschrägte Fläche kann man erreichen, dass der Fortsatz mit Außenvorsprung und/oder der Innenvorsprung beim Zusammenfügen der beiden Wickelhülsen geringfügig komprimiert werden, so dass der Außenvorsprung hinter dem Innenvorsprung einrastet und eine Verbindung zwischen den beiden Wickelhülsen gegeben ist, die nicht ohne Weiteres axial gelöst werden kann.Preferably, the outer projection and / or the inner projection on a tapered surface, the slope of which is directed to the axially outer end. The chamfered surface, which is designed as a conical lateral surface or part of a conical lateral surface, makes it easier to thread the extension into the recess. Due to the beveled surface, it is possible to slightly compress the projection with the outer projection and / or the inner projection during assembly of the two winding sleeves, so that the outer projection engages behind the inner projection and there is a connection between the two winding sleeves which is not readily axially can be solved.

Vorzugsweise ist der maximale Außendurchmesser des Außenvorsprungs an den maximalen Innendurchmesser der Ausnehmung angepasst. Damit kann man zusätzlich einen Reibschluss zwischen dem Außendurchmesser des Außenvorsprungs und dem Innendurchmesser der Ausnehmung erzeugen, dass der Zusammenhalt zwischen den beiden Wickelhülsen so weiter verbessert wird.Preferably, the maximum outer diameter of the outer projection is adapted to the maximum inner diameter of the recess. This can additionally generate a frictional engagement between the outer diameter of the outer projection and the inner diameter of the recess, that the cohesion between the two winding tubes is further improved.

Vorzugsweise weist der Fortsatz eine axiale Länge auf, die an die axiale Länge der Ausnehmung angepasst ist. Die beiden Elemente, die zum Verbinden der beiden Wickelhülsen verwendet werden, nämlich Fortsatz und Ausnehmung, sind dann so aneinander angepasst, dass eine Schubbelastung bestmöglich aufgenommen werden kann.Preferably, the extension has an axial length which is adapted to the axial length of the recess. The two elements that are used to connect the two cores, namely extension and recess, are then adapted to each other so that a thrust load can be absorbed as well as possible.

Vorzugsweise ist die erste Wickelhülse als Rohr mit einer ersten Wandstärke im Bereich der Anlagefläche ausgebildet und der Fortsatz weist eine zweite Wandstärke auf, die im Bereich von 25 bis 50 % der ersten Wandstärke ist. Der Fortsatz ist also zum Einen stabil genug, um die axiale Verbindung zwischen zwei benachbarten Wickelhülsen sicherzustellen. Andererseits kann er dann, wenn die beiden Wickelhülsen getrennt werden sollen, zerstört werden, ohne dass übermäßig große Kräfte notwendig sind. Gegebenenfalls kann man die beiden Wickelrollen ein Stück weit auseinander ziehen und den Fortsatz dann mit Hilfe einer Sägeschnur durchtrennen.Preferably, the first winding tube is formed as a tube with a first wall thickness in the region of the contact surface and the extension has a second wall thickness which is in the range of 25 to 50% of the first wall thickness. The extension is therefore stable enough to ensure the axial connection between two adjacent cores. On the other hand, if the two cores are to be separated, it can be destroyed without requiring excessively large forces. If necessary, you can pull apart the two rolls a bit far and then sever the extension using a Sägeschnur.

Die Aufgabe wird auch durch eine Wickelhülse für eine derartige Wickelhülsenanordnung gelöst, die am ersten Ende den Fortsatz und am zweiten Ende die Ausnehmung aufweist. Die Wickelhülsenanordnung kann dann aus gleich aufgebauten Wickelhülsen gebildet sein, die einfach in Axialrichtung hintereinander angeordnet werden. Beim Einschieben oder vor dem Einschieben der Wickelhülsenanordnung in das Wickelbett werden die Fortsätze in die Ausnehmungen der jeweils benachbarten Wickelhülsen eingeschoben, um den gewünschten Verbund zu erzielen.The object is also achieved by a winding tube for such a winding tube arrangement, which has the extension at the first end and the recess at the second end. The winding tube assembly may then be formed of identically constructed cores, which are easy in the axial direction be arranged one behind the other. When inserting or before inserting the winding tube assembly in the winding bed, the extensions are inserted into the recesses of the respective adjacent winding tubes to achieve the desired composite.

Die Aufgabe wird auch durch eine Rollenwickeleinrichtung mit einer Wickelhülsenanordnung gelöst, wie sie oben beschrieben ist. Wenn die Rollenwickeleinrichtung startet, dann liegt die Wickelhülsenanordnung im Wickelbett als Verbund. Dieser Verbund bleibt auch aufrecht erhalten, wenn die Rollenwickeleinrichtung startet und die Teilbahnen zu Wickelrollen aufwickelt. Gegebenenfalls kann man bei einer derartigen Rollenwickeleinrichtung im Vorhinein bei einigen ersten Wickelhülsen den Fortsatz entfernen oder sogar Wickelhülsen ohne Fortsatz verwenden, wenn man nur eine beschränkte Anzahl von Wickelrollen als Verbund zusammenfassen möchte.The object is also achieved by a roller winding device with a winding tube arrangement, as described above. When the roll winding device starts, then the winding tube assembly is in the winding bed as a composite. This bond is also maintained when the reel winder starts and winds the sub-webs into winder rolls. Optionally, you can in such a role winding device in advance in some first cores remove the extension or even use cores without extension, if you want to summarize only a limited number of reels as a composite.

Die Erfindung wird im Folgenden anhand eines bevorzugten Ausführungsbeispiels in Verbindung mit der Zeichnung beschrieben. Hierin zeigen:

Fig. 1
zwei benachbart angeordnete Wickelhülsen vor dem Zusammenstecken; und
Fig. 2
eine Wickelhülsenanordnung mit zwei Wickelhülsen und sich darauf aufbauenden Wickelrollen.
The invention will be described below with reference to a preferred embodiment in conjunction with the drawings. Herein show:
Fig. 1
two adjacent cores before mating; and
Fig. 2
a winding tube assembly with two cores and winding rolls based thereon.

Eine Wickelrollenanordnung 1 weist eine erste Wickelhülse 2 und eine zweite Wickelhülse 3 auf, die in Axialrichtung einander benachbart angeordnet sind. Die Wickelhülse 2 weist am Umfang eine Anlagefläche 4 auf, an der eine Materialbahn zur Anlage gebracht werden kann, wenn diese Materialbahn zu einer Wickelrolle 5 aufgewickelt werden soll. Die Wickelhülse 2 ist im Übrigen mit einem durchgehenden, hohlzylindrischen Hohlraum 6 versehen. Die Wickelhülse 2 weist ein erstes axiales Ende auf, das in den Figuren 1 und 2 zu sehen ist. An diesem ersten Ende weist die Wickelhülse 2 einen Fortsatz 7 auf, der in Axialrichtung über die Anlagefläche 4 übersteht. Am axial äußeren Ende weist der Fortsatz einen radial nach außen vorstehenden Vorsprung 8 auf, der dementsprechend auch als "Außenvorsprung" bezeichnet wird. Der Außenvorsprung 8 kann in Umfangsrichtung umlaufend und durchgehend ausgebildet sein. Er kann aber auch Unterbrechungen aufweisen.A bobbin arrangement 1 has a first winding tube 2 and a second winding tube 3, which are arranged adjacent to each other in the axial direction. The winding tube 2 has on the circumference of a contact surface 4, to which a web can be brought to bear when this web is to be wound into a winding roll 5. The winding tube 2 is otherwise provided with a continuous, hollow cylindrical cavity 6. The winding tube 2 has a first axial end, which in the Figures 1 and 2 you can see. At this first end, the winding tube 2 has an extension 7, which projects beyond the contact surface 4 in the axial direction. At the axially outer end, the extension has a radially outwardly projecting projection 8, which is accordingly also referred to as "outer projection". The outer projection 8 may be circumferential and continuous in the circumferential direction. He may also have interruptions.

Der Außenvorsprung 8 weist eine konisch abgeschrägte Fläche 9 auf.The outer projection 8 has a conically tapered surface 9.

Ferner kann der Fortsatz mehrere in Umfangsrichtung verteilt angeordnete Schlitze 10 aufweisen. Dies ist aber nicht unbedingt erforderlich.Furthermore, the extension can have a plurality of slots 10 distributed in the circumferential direction. But this is not absolutely necessary.

Der Außenvorsprung 8 weist eine axiale Länge a auf, die eine Größenordnung im Bereich von 1 bis 3 mm hat. Zwischen dem axial inneren Ende des Außenvorsprungs 8 und der Anlagefläche ergibt sich ein Abstand b, der eine Größenordnung im Bereich von 2 bis 4 mm hat. Der Abstand b ist um etwa 1 mm größer als die axiale Erstreckung des Außenvorsprungs 8. Die Darstellung in der Zeichnung ist hier nicht maßstäblich.The outer projection 8 has an axial length a, which has an order of magnitude in the range of 1 to 3 mm. Between the axially inner end of the outer projection 8 and the contact surface results in a distance b, which has an order of magnitude in the range of 2 to 4 mm. The distance b is larger by about 1 mm than the axial extent of the outer projection 8. The representation in the drawing is not to scale here.

Die zweite Wickelhülse 3 weist am Umfang ebenfalls eine Anlagefläche 11 auf, auf der sich eine Wickelrolle 12 bildet, wenn die Wickelhülse 3 gedreht wird.The second winding tube 3 also has on the circumference on a contact surface 11 on which a winding roller 12 is formed when the winding tube 3 is rotated.

Die Wickelhülse 3 ist als Hohlkörper ausgebildet und umgibt einen Hohlraum 13.The winding tube 3 is formed as a hollow body and surrounds a cavity thirteenth

Die Wickelhülse 3 weist ein erstes Ende auf, das in den Figuren 1 und 2 nicht sichtbar ist. Dieses erste Ende ist genauso ausgebildet wie das erste Ende der ersten Wickelhülse 2. Es kann auch glatt, also ohne die entsprechende Eingriffsgeometrie ausgebildet sein, wenn die Wickelhülse eine randständige Position einnimmt oder eine Verbindung zwischen zwei Wickelhülsen an einer bestimmten Position nicht gewünscht ist.The winding tube 3 has a first end, which in the Figures 1 and 2 is not visible. It may also be smooth, so without the corresponding engagement geometry be formed when the winding tube assumes a marginal position or a connection between two cores is not desired at a certain position.

Ferner weist die Wickelhülse 3 ein zweites Ende mit einer Ausnehmung 14 auf, deren Innendurchmesser gegenüber dem Innendurchmesser des Hohlraums 13 vergrößert ist. In die Ausnehmung 14 ragt ein Innenvorsprung 15 radial hinein. Der Innenvorsprung 15 weist eine konisch abgeschrägte Fläche 16 auf. Auch der Innenvorsprung 15 kann umlaufend geschlossen sein. Er kann auch in Umlaufrichtung unterbrochen sein, wobei die Unterbrechungen in diesem Fall vorzugsweise genauso groß sind, wie in Umfangsrichtung zusammenhängende Bereiche des Außenvorsprungs 8. In diesem Fall sollten die Unterbrechungen des Innenvorsprungs 15 etwa genauso groß sein, wie die verbleibenden Bereiche des Innenvorsprungs 15.Furthermore, the winding tube 3 has a second end with a recess 14, whose inner diameter is increased compared to the inner diameter of the cavity 13. In the recess 14 projects an inner projection 15 radially into it. Of the Inner projection 15 has a conically tapered surface 16. Also, the inner projection 15 may be closed circumferentially. It may also be interrupted in the direction of rotation, wherein the interruptions in this case are preferably the same as circumferentially continuous areas of the outer projection 8. In this case, the interruptions of the inner projection 15 should be about the same size as the remaining portions of the inner projection 15th

Der Innenvorsprung 15 weist eine axiale Erstreckung c auf, deren Größe im Bereich von 1 bis 3 mm liegt. Die Ausnehmung 14 weist zwischen dem Innenvorsprung 15 und einem axialen Ende 18 eine axiale Erstreckung d auf, deren Größe im Bereich von 2 bis 4 mm liegt. Die Darstellung der Figuren 1 und 2 ist diesbezüglich nicht maßgeblich. Die Entfernung d ist um etwa 1 mm größer als die axiale Erstreckung c.The inner projection 15 has an axial extent c whose size is in the range of 1 to 3 mm. The recess 14 has, between the inner projection 15 and an axial end 18, an axial extent d whose size is in the range of 2 to 4 mm. The presentation of the Figures 1 and 2 is not relevant in this regard. The distance d is larger by about 1 mm than the axial extent c.

Das axial vordere Ende des Außenvorsprungs 8 stimmt mit seinem Außendurchmesser etwa mit dem Innendurchmesser des axial äußeren Endes des Innenvorsprungs 15 überein. Zweckmäßigerweise ist der Außenvorsprung 8 hier mit einem geringfügig kleineren Durchmesser versehen, so dass die beiden Flächen 9, 16 aneinander zur Anlage gebracht werden können. Bei zunehmendem axialen Druck federt der Fortsatz 7 dann, gegebenenfalls unterstützt durch die Schlitze 10, radial nach innen ein, so dass der Außenvorsprung 8 hinter dem Innenvorsprung 15 einrasten kann. Der Abstand d in der Ausnehmung 14 ist dabei größer als die axiale Erstreckung des Außenvorsprungs a, so dass der Außenvorsprung a in der Ausnehmung ungehindert nach außen federn kann. In gleicher Weise ist die Erstreckung c des Innenvorsprungs 15 größer als die Entfernung b zwischen dem Außenvorsprung 8 und der Anlagefläche 4, so dass, wie dies in Fig. 2 zu erkennen ist, sowohl für den Außenvorsprung 8 als auch für den Innenvorsprung 15 genügend Platz zur Verfügung steht. In Fig. 2 sind die Schlitze 10 weggelassen. Ob die Schlitze 10 erforderlich sind, hängt vom Material der Wickelhülsen 2, 3 ab.The axially front end of the outer projection 8 coincides with its outer diameter approximately to the inner diameter of the axially outer end of the inner projection 15. Conveniently, the outer projection 8 is provided here with a slightly smaller diameter, so that the two surfaces 9, 16 can be brought into contact with each other. With increasing axial pressure of the extension 7 then, optionally supported by the slots 10, radially inwardly, so that the outer projection 8 can engage behind the inner projection 15. The distance d in the recess 14 is greater than the axial extent of the outer projection a, so that the outer projection a in the recess can spring freely to the outside. Similarly, the extent c of the inner projection 15 is greater than the distance b between the outer projection 8 and the abutment surface 4, so that, as in Fig. 2 can be seen, for both the outer projection 8 and the inner projection 15 is enough space available. In Fig. 2 the slots 10 are omitted. Whether the slots 10 are required depends on the material of the cores 2, 3.

Der Außenvorsprung 8 weist einen maximalen Außendurchmesser auf, der an den Innendurchmesser der Ausnehmung 14 angepasst ist. Dadurch ergibt sich ein leichter Reibschluss zwischen dem Außenvorsprung 8 und der Innenfläche der Ausnehmung 14.The outer projection 8 has a maximum outer diameter, which is adapted to the inner diameter of the recess 14. This results in a slight frictional engagement between the outer projection 8 and the inner surface of the recess 14.

In ähnlicher Weise weist der Innenvorsprung 15 einen Innendurchmesser auf, der an den Außendurchmesser des Fortsatzes 7 zwischen dem Außenvorsprung 8 und der Anlagefläche 4 angepasst ist. Der Innenvorsprung 15 liegt also, wie in Fig. 2 dargestellt ist, am Außendurchmesser des Fortsatzes 7 an. Unter Umständen kann es günstig sein, wenn bei zusammengesteckten Wickelhülsen 2, 3 der Außenvorsprung 8 und/oder der Innenvorsprung 15 noch etwas komprimiert sind, um die Reibkräfte zu erhöhen.Similarly, the inner projection 15 has an inner diameter which is adapted to the outer diameter of the extension 7 between the outer projection 8 and the abutment surface 4. The inner projection 15 is thus, as in Fig. 2 is shown, on the outer diameter of the extension 7 at. Under certain circumstances, it may be advantageous if, when the winding cores 2, 3 are plugged together, the outer projection 8 and / or the inner projection 15 are still slightly compressed in order to increase the frictional forces.

Der Fortsatz 7 weist außerhalb des Außenvorsprungs 8 eine Wandstärke auf, die eine Größenordnung im Bereich von 25 bis 50 % der Wandstärke der Wickelhülse 2 im Bereich der Anlagefläche ist. Dadurch ist einerseits eine ausreichende Stabilität bei der Handhabung eines Verbunds aus Wickelhülsen 2, 3 sichergestellt. Andererseits ist dieser Verbund mit noch vertretbaren Kräften auflösbar, wenn dies erforderlich sein sollte.The extension 7 has outside the outer projection 8 on a wall thickness which is an order of magnitude in the range of 25 to 50% of the wall thickness of the winding tube 2 in the region of the contact surface. As a result, on the one hand sufficient stability in the handling of a composite of winding tubes 2, 3 ensured. On the other hand, this composite is resolvable with still reasonable forces, if necessary.

Die erste Wickelhülse 2 weist ein zweites Ende auf, das genauso ausgebildet sein kann, wie das zweite Ende der Wickelhülse 3.The first winding tube 2 has a second end, which may be designed in the same way as the second end of the winding tube 3.

Vor dem Beginn des Wickelvorgangs werden die beiden Wickelhülsen 2, 3, wie in Fig. 2 dargestellt, miteinander in Eingriff gebracht. Dieser Eingriff erlaubt aufgrund der Bemaßung der Vorsprünge 8, 15 und der Abstände b, c eine Beweglichkeit in Axialrichtung von etwa 1 mm. Die beiden Wickelhülsen 2, 3 bilden damit einen relativ stabilen Verbund. Sie werden gemeinsam gedreht, so dass sich die Wickelrollen 5, 12 bilden können. Nach dem Fertigstellen der Wickelrollen 5, 12 werden die beiden Wickelrollen (wenn mehrere derartige Wickelhülsen 2, 3 in den Verbund aufgenommen sind, können natürlich auch mehrere Wickelrollen in dem Verbund vorhanden sein) gemeinsam ausgestoßen. Sie laufen aufgrund der Tatsache, dass der Fortsatz 7 in die Ausnehmung 14 eingesteckt ist, zunächst koaxial zueinander. Die beiden Vorsprünge 8, 15 verhindern, dass sich die beiden Wickelrollen 5, 12 in axialer Richtung trennen. Somit können auch Wickelrollen gehandhabt werden, bei denen das Verhältnis von Durchmesser zu axialer Länge ungünstig ist. Wenn derartige Schmalrollen im Verbund laufen, dann neigen sie weniger stark zum Umkippen.Before the beginning of the winding process, the two winding tubes 2, 3, as in Fig. 2 shown engaged with each other. This engagement allows due to the dimensioning of the projections 8, 15 and the distances b, c a mobility in the axial direction of about 1 mm. The two cores 2, 3 thus form a relatively stable composite. They are rotated together, so that the winding rollers 5, 12 can form. After completion of the winding rollers 5, 12, the two winding rollers (if several such winding tubes 2, 3 are included in the composite, of course, several bobbins in the composite may be present) ejected together. They run due to the The fact that the extension 7 is inserted into the recess 14, initially coaxial with each other. The two projections 8, 15 prevent the two winding rollers 5, 12 separate in the axial direction. Thus, also winding rolls can be handled, in which the ratio of diameter to axial length is unfavorable. If such narrow rollers run in the composite, they are less likely to tip over.

Wenn man die Wickelrollen 5, 12 letztendlich getrennt voneinander handhaben möchte, dann reicht es in vielen Fällen aus, sie in axialer Richtung auseinander zu ziehen. Hierbei werden die beiden Vorsprünge 8, 15 gegebenenfalls zwar beschädigt. Dies ist aber unkritisch. Es kann auch der Fall auftreten, dass der Fortsatz 7 an irgendeiner Stelle abreißt oder bricht. Man kann auch die beiden Wickelrollen 5, 12 um den genannten Millimeter, der sich durch das Spiel des Außenvorsprungs hinter dem Innenvorsprung ergibt, (oder eine entsprechende Größe) auseinander ziehen, so dass sich ein Spalt 17 ergibt, durch den man eine Sägeschnur oder ein Sägeblatt führen kann, um den Fortsatz 7 durchzusägen.If you want to handle the bobbins 5, 12 ultimately separated from each other, then it is sufficient in many cases, they pull apart in the axial direction. Here, the two projections 8, 15 may possibly be damaged. This is not critical. It may also be the case that the extension 7 breaks or breaks at any point. You can also pull the two bobbins 5, 12 by the mentioned millimeter, which results from the play of the outer projection behind the inner projection, (or a corresponding size) apart, so that there is a gap 17, through which a Sägeschnur or a Saw blade can lead to saw through the extension 7.

Zum Wickeln einer größeren Anzahl von Schmalrollen 5, 12 kann man nun eine entsprechend große Anzahl von Wickelhülsen 2, 3 axial zu einem Verband zusammenfügen, indem man den Fortsatz 7 in die Ausnehmung 14 hineinsteckt. Wenn man einen derartigen Verband unterbrechen möchte, reicht es aus, vor dem axialen Einschieben der Wickelhülsen 2, 3 in das Wickelbett bei einer oder mehreren Wickelhülsen 2 den Fortsatz 7 zu entfernen. Dies lässt sich einfach dadurch bewerkstelligen, dass der Fortsatz 7 abgesägt wird.For winding a larger number of narrow rollers 5, 12 can now be a correspondingly large number of cores 2, 3 join together axially to form a bandage by hineinsteckt the extension 7 in the recess 14. If one wants to interrupt such a bandage, it is sufficient to remove the extension 7 before the axial insertion of the winding tubes 2, 3 into the winding bed in one or more winding tubes 2. This can be accomplished simply by sawing off the extension 7.

Die Geometrien an den beiden Enden der Wickelhülsen 2, 3 lassen sich relativ einfach durch Drehen oder eine andere spanende Fertigung erzeugen. Die Schlitze 10 können, wenn sie erforderlich sein sollten, einfach eingesägt werden. Hierbei ist es zweckmäßig, wenn sich jeweils zwei Schlitze 10 diametral gegenüberstehen.The geometries at the two ends of the cores 2, 3 can be relatively easily produced by turning or another machining production. The slots 10, if they should be required, can be easily sawed. It is expedient if two slots 10 are diametrically opposed.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
WickelrollenanordnungCoil roller assembly
22
Erste WickelhülseFirst winding tube
33
Zweite WickelhülseSecond winding tube
44
Anlageflächecontact surface
55
Wickelrollereel
66
Hohlraumcavity
77
Fortsatzextension
88th
Vorsprunghead Start
99
Flächearea
1010
Schlitzslot
1111
Anlageflächecontact surface
1212
Wickelrollereel
1313
Hohlraumcavity
1414
Ausnehmungrecess
1515
Innenvorsprunginternal projection
1616
Flächearea
1717
Spaltgap
1818
EndeThe End
aa
Längelength
bb
Abstanddistance
cc
Erstreckungextension
dd
Erstreckungextension

Claims (9)

  1. Winding core assembly for a roll winding device, having at least one first winding core and a second winding core adjacent in the axial direction, each winding core having on the circumference a contact surface for a material web and a first axial end and a second axial end,
    the first winding core (2) having at the first end an extension (7) which projects axially beyond the contact surface (4), the maximum external diameter of which is smaller than the external diameter of the first winding core (2) in the region of the contact surface (4) and which projects into a recess (14) at the second end of the second winding core (3), and
    the extension (7) having at least one radial external protrusion (8) which engages behind a radially inwardly projecting protrusion (15) in the recess (14),
    characterized in that
    the internal protrusion (15) has an axial length (c) which is smaller than an axial distance (b) between the external protrusion (8) and the contact surface (4), and
    in that the external protrusion (8) has an axial length (a) which is smaller than an axial distance (d) between the internal protrusion (15) and an axial end (18) of the recess (14).
  2. Winding core assembly according to Claim 1,
    characterized in that
    the external protrusion (8) is arranged at the outer axial end of the extension (7).
  3. Winding core assembly according to Claim 1 or 2,
    characterized in that
    the internal protrusion (15) is arranged at the outer axial end of the recess.
  4. Winding core assembly according to one of Claims 1 to 3,
    characterized in that
    the external protrusion (8) and/or the internal protrusion (15) has a bevelled surface (9, 16), the inclination of which is directed towards the axially outer end.
  5. Winding core assembly according to one of Claims 1 to 4,
    characterized in that
    the maximum external diameter of the external protrusion (8) is matched to the maximum internal diameter of the recess (14).
  6. Winding core assembly according to one of Claims 1 to 5,
    characterized in that
    the extension (7) has an axial length which is matched to the axial length of the recess (14).
  7. Winding core assembly according to one of the preceding claims,
    characterized in that
    the first winding core (2) is formed as a tube having a first wall thickness in the region of the contact surface (4), and the extension (7) has a second wall thickness which is in the range from 25 to 50% of the first wall thickness.
  8. Winding core which can be used in a winding core assembly (1) according to one of Claims 1 to 8 and which has on the circumference a contact surface for a material web and a first axial end and a second axial end,
    the winding core having at the first end an extension (7) which projects axially beyond the contact surface (4), the maximum external diameter of which is smaller than the external diameter of the winding core in the region of the contact surface (4), and having a recess (14) at the second end, and
    the extension (7) having at least one radial external protrusion (8), and the recess (14) having a radially inwardly projecting protrusion (15),
    characterized in that
    the internal protrusion (15) has an axial length (c) which is smaller than an axial distance (b) between the external protrusion (8) and the contact surface (4), and
    in that the external protrusion (8) has an axial length (a) which is smaller than an axial distance (d) between the internal protrusion (15) and an axial end (18) of the recess (14).
  9. Roll winding device having a winding core assembly (1) according to one of Claims 1 to 8.
EP08165668A 2007-11-06 2008-10-02 Winding core assembly for a roll winding device, winding core and roll winding device Expired - Fee Related EP2058259B1 (en)

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DE102007000630A DE102007000630A1 (en) 2007-11-06 2007-11-06 Winding sleeve arrangement for a roll winding device, winding tube and roll winding device

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JPS5252559Y2 (en) * 1973-03-27 1977-11-29
JPS5610764Y2 (en) * 1978-02-07 1981-03-11
JPS5767058U (en) * 1980-10-02 1982-04-22
WO1993010033A1 (en) * 1991-11-14 1993-05-27 Hagleitner Betriebshygiene Ges.M.B.H. & Co Kg Reel for roll material
CH688040A5 (en) * 1994-03-08 1997-04-30 Feramatic Ag Winding core for winding two-dimensional objects.
US6669818B2 (en) * 2000-06-28 2003-12-30 Metso Paper Karlstad Ab Shortened layout from dryer to reel in tissue machine
SE0102452L (en) * 2001-07-05 2003-01-06 Core Link Ab Method and device for jointing
JP2003300674A (en) 2002-04-09 2003-10-21 Shinsei Hoso:Kk Web roll core and method of molding core member
FI6592U1 (en) * 2004-12-29 2005-02-25 Coresystems Oy End roll connection for paper roll cores

Also Published As

Publication number Publication date
EP2058259A3 (en) 2009-11-04
DE102007000630A1 (en) 2009-05-07
EP2058259A2 (en) 2009-05-13
ATE516242T1 (en) 2011-07-15

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