EP2049424B1 - Pressure roll or continuous pressure belt - Google Patents

Pressure roll or continuous pressure belt Download PDF

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Publication number
EP2049424B1
EP2049424B1 EP07787447A EP07787447A EP2049424B1 EP 2049424 B1 EP2049424 B1 EP 2049424B1 EP 07787447 A EP07787447 A EP 07787447A EP 07787447 A EP07787447 A EP 07787447A EP 2049424 B1 EP2049424 B1 EP 2049424B1
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EP
European Patent Office
Prior art keywords
pressure roll
roll according
grooves
partly
range
Prior art date
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Not-in-force
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EP07787447A
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German (de)
French (fr)
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EP2049424A2 (en
Inventor
Matthias Wohlfahrt
Roland Thomas
Walter Kaipf
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Voith Patent GmbH
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Voith Patent GmbH
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Publication of EP2049424A2 publication Critical patent/EP2049424A2/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
    • B65H19/00—Changing the web roll
    • B65H19/22—Changing the web roll in winding mechanisms or in connection with winding operations
    • B65H19/2238—The web roll being driven by a winding mechanism of the nip or tangential drive type
    • B65H19/2253—The web roll being driven by a winding mechanism of the nip or tangential drive type and the roll being displaced during the winding operation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H27/00—Special constructions, e.g. surface features, of feed or guide rollers for webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/10—Rollers
    • B65H2404/13—Details of longitudinal profile
    • B65H2404/131—Details of longitudinal profile shape
    • B65H2404/1316—Details of longitudinal profile shape stepped or grooved
    • B65H2404/13162—Helicoidal grooves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2408/00—Specific machines
    • B65H2408/20—Specific machines for handling web(s)
    • B65H2408/23—Winding machines
    • B65H2408/236—Pope-winders with first winding on an arc of circle and secondary winding along rails
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2601/00—Problem to be solved or advantage achieved
    • B65H2601/20—Avoiding or preventing undesirable effects
    • B65H2601/21—Dynamic air effects
    • B65H2601/211—Entrapping air in or under the material

Definitions

  • the invention relates to a pressure roller for forming a winding nip with a spool in a winding machine for winding a material web, in particular paper or board web. It further relates to a winding machine with such a pressure roller.
  • Pressure rollers and winding machines of the type mentioned are known. It has also been attempted to prevent the wrapping of air during winding of the web by appropriate pressing of the pressure roller, an air squeezing or the like to the spool. Gerilite pressure rollers have also been used to prevent the web from floating.
  • Such a pressure roller is eg in the document WO99 / 62804 disclosed.
  • the invention has for its object to provide an improved pressure roller and an improved winding machine of the type mentioned, in which it is ensured that wrapped air is removed as quickly as possible.
  • the object is achieved in that adjacent to the winding nip roll surface has spirally extending, at least catchy grooves, each having a depth in the range of about 0.4 mm to about 1.5 mm and a width, preferably maximum width, ranging from about 35 to about 60 mm, and that the Gear number is adapted to the slope that a ridge remains in the range between about 100 mm and about 400 mm, and preferably in the range of 200 mm.
  • the trapped air during winding of the web is quickly and reliably removed again.
  • the material web dips into the grooves and forms laterally limited air chambers for the wrapped air. Due to the spiral shape of the grooves, the air is pumped outwards.
  • the grooves each have a depth in the range of 0.8 mm.
  • the grooves each have a width, preferably maximum width, in the range of 40 mm.
  • the spiral grooves extend outward from a central roller area.
  • the grooving is preferably carried out at least partially catchy.
  • this scoring is carried out at least partially more frequently. It is advantageous if the various gears are distributed uniformly over the roll circumference or adjacent to the winding nip contact surface.
  • the grooving is expediently carried out 1 to 5 courses. In this case, it may in particular be at least partially 2-pass, at least partially 3-pass or at least partially at least 4-pass.
  • the grooves according to an advantageous embodiment in particular from radially inward to outward at least partially have a concave cross-sectional shape.
  • these grooves may, in particular from radially inward to outward, at least partially also have a lenticular cross-sectional shape.
  • Conceivable is advantageously also a rectangular or trapezoidal cross-sectional shape.
  • the groove pitch is at least partially in the range of about 300 mm to about 1500 mm, and preferably in the range of 600 mm.
  • a web In the area of the roll center, a web can remain in the range from 0 mm to about 200 mm.
  • the number of flights is adapted to the pitch so that a web remains in the range between about 100 mm and about 400 mm, and preferably in the range of 200 mm.
  • the pressure roller preferably has a diameter> 700 mm and preferably> 1000 mm.
  • the scoring may be provided directly on the roll body.
  • the roller is driven.
  • the relative speed to the drum can be controlled, whereby the Luftaustreib bin can be further optimized.
  • the slip can be controlled accordingly.
  • the contact surface of the pressure roller is provided for tambour with a grooving a certain geometry. It is important that the scoring is substantially spiraling from a central region starting outwards. The scoring comes into contact with the surface of the spool, which is soft due to the wrapped air. The material web dips something into the grooves and forms a laterally limited air chamber for the wrapped air. Due to the spiral shape, it is pumped outwards.
  • the effectiveness depends on the geometry of the grooves.
  • the scoring is preferably more continuous, i. e.g. 2 or 3-speed or at least 4-speed, which allows more air to be discharged.
  • the shape of the grooves may in particular be concave, lenticular or even rectangular or trapezoidal, etc.
  • the pressure roller or carrier drum is driven to control the relative speed to the drum can.
  • the Heilaustreib bin can be further optimized, in particular the slip can be controlled accordingly.
  • the number of flights can be adapted to the pitch so that a ridge remains in the range of about 100 to about 400 mm, preferably in the range of 200 mm.
  • the winding machine according to the invention is characterized in that it comprises a pressure roller according to the invention, which forms a winding nip with a spool, through which a material web, in particular paper or board web is passed, to be subsequently wound onto the spool.
  • the pressure roller according to the invention or the winding machine according to the invention is used with particular advantage for winding a material web, in particular paper or board web whose air permeability ⁇ 50 ml / min according to Bendtsen according to DIN 53120-1.
  • Fig. 1 shows a schematic Dars republic an exemplary embodiment of a winding machine 10 with a pressure roller 12 which forms a winding nip 16 with a spool 14 through which a web of material 17 is passed, to be subsequently wound onto the spool 14.
  • Fig. 2 shows in the right part in a schematic representation of an exemplary embodiment of a pressure roller 12 according to the invention with catchy grooves 18, as shown for example in the in the Fig. 1 shown winding machine can be used.
  • the at the winding nip 14 (see. Fig. 1 ) adjacent roll surface 20 has spirally extending, here for example catchy grooves 18, each having a depth t in the range of about 0.4 mm to about 1.5 mm and each having a width b, preferably maximum width b, in the range of about 35 to about 60 mm.
  • these grooves 18 have a depth in the range of 0.8 mm.
  • the left part of the Fig. 2 shows a cross section along the line AA. As based on this in Fig. 2 In the left-hand illustration of a respective groove, the groove edges are broken in the present case.
  • the groove pitch rs may be at least partially in the range of about 300 mm to about 1500 mm, in the present case, for example, in the range of about 600 mm.
  • the groove pitch rs is also in the present case, for example, again about 600 mm.
  • an overlap of in particular 0 to 100 mm, preferably 0 mm can be made.
  • the number of flights can be adapted to the pitch so that a web 22 in the range of in particular from about 100 to about 400 mm, preferably in the range of 200 mm remains.
  • the respective groove 18 at least partially, for example, a rectangular (see. Fig. 4 ), a trapezoidal (cf. Fig. 5 ) or any other cross-sectional shape, for example, such as those in the Fig. 6 is shown, in which the two lateral edges of the groove 18 are formed differently. In the present case, the right edge is rounded throughout, while the left edge is angled.

Description

Die Erfindung betrifft eine Anpresswalze zur Bildung eines Wickelspaltes mit einem Tambour in einer Wickelmaschine zum Aufwickeln einer Materialbahn, insbesondere papier- oder Kartonbahn. Sie betrifft ferner eine Wickelmaschine mit einer solchen Anpresswalze.The invention relates to a pressure roller for forming a winding nip with a spool in a winding machine for winding a material web, in particular paper or board web. It further relates to a winding machine with such a pressure roller.

Anpresswalzen sowie Wickelmaschinen der eingangs genannten Art sind bekannt. Es wurde auch bereits versucht, das Einwickeln von Luft beim Aufwickeln der Materialbahn durch entsprechendes Andrücken der Anpresswalze, eines Luftabquetschelements oder dergleichen an den Tambour zu verhindern. Es wurden auch bereits gerilite Anpresswalzen eingesetzt, um ein Aufschwimmen der Materialbahn zu verhindern.Pressure rollers and winding machines of the type mentioned are known. It has also been attempted to prevent the wrapping of air during winding of the web by appropriate pressing of the pressure roller, an air squeezing or the like to the spool. Gerilite pressure rollers have also been used to prevent the web from floating.

Eine derartige Anpresswalze wird z.B. in der Druckschrift WO99/62804 offenbart.Such a pressure roller is eg in the document WO99 / 62804 disclosed.

In der Praxis hat sich jedoch gezeigt, dass das Einwickeln von Luft bisher nur unzureichend vermieden werden konnte.In practice, however, it has been shown that the wrapping of air has so far been insufficiently avoided.

Der Erfindung liegt die Aufgabe zugrunde, eine verbesserte Anpresswalze sowie eine verbesserte Wickelmaschine der eingangs genannten Art zu schaffen, bei denen sichergestellt ist, dass eingewickelte Luft möglichst rasch wieder entfernt wird.The invention has for its object to provide an improved pressure roller and an improved winding machine of the type mentioned, in which it is ensured that wrapped air is removed as quickly as possible.

Bezüglich der Anpresswalze wird die Aufgabe erfindungsgemäß dadurch gelöst, dass die an den Wickelspalt angrenzende Walzen oberfläche spiralförmig verlaufende, zumindest eingängige Rillen aufweist, die jeweils eine Tiefe im Bereich von etwa 0,4 mm bis etwa 1,5 mm und jeweils eine Breite, vorzugsweise maximale Breite, im Bereich von etwa 35 bis etwa 60 mm besitzen und dass die Gangzahl so an die Steigung angepasst ist, dass ein Steg im Bereich zwischen etwa 100 mm und etwa 400 mm und vorzugsweise im Bereich von 200 mm verbleibt.With respect to the pressure roller, the object is achieved in that adjacent to the winding nip roll surface has spirally extending, at least catchy grooves, each having a depth in the range of about 0.4 mm to about 1.5 mm and a width, preferably maximum width, ranging from about 35 to about 60 mm, and that the Gear number is adapted to the slope that a ridge remains in the range between about 100 mm and about 400 mm, and preferably in the range of 200 mm.

Aufgrund dieser Ausbildung wird die beim Aufwickeln der Materialbahn eingeschlossene Luft rasch und zuverlässig wieder entfernt. Dabei taucht die Materialbahn etwas in die Rillen ein und bildet seitlich begrenzte Luftkammern für die eingewickelte Luft. Durch den spiralförmigen Verlauf der Rillen wird die Luft nach außen gepumpt.Due to this design, the trapped air during winding of the web is quickly and reliably removed again. The material web dips into the grooves and forms laterally limited air chambers for the wrapped air. Due to the spiral shape of the grooves, the air is pumped outwards.

Bevorzugt besitzen die Rillen jeweils eine Tiefe im Bereich von 0,8 mm.Preferably, the grooves each have a depth in the range of 0.8 mm.

Von Vorteil ist insbesondere auch, wenn die Rillen jeweils eine Breite, vorzugsweise maximale Breite, im Bereich von 40 mm besitzen.It is particularly advantageous if the grooves each have a width, preferably maximum width, in the range of 40 mm.

Gemäß einer bevorzugten praktischen Ausführungsform der erfindungsgemäßen Anpresswalze verlaufen die spiralförmigen Rillen in Richtung der Walzenachse betrachtet ausgehend von einem mittleren Walzenbereich nach außen.According to a preferred practical embodiment of the pressure roller according to the invention, as viewed in the direction of the roller axis, the spiral grooves extend outward from a central roller area.

Die Rillung ist bevorzugt zumindest teilweise eingängig ausgeführt.The grooving is preferably carried out at least partially catchy.

Gemäß einer bevorzugten praktischen Ausführungsform ist diese Rillung zumindest teilweise mehrgängig ausgeführt. Dabei ist von Vorteil, wenn die verschiedenen Gänge gleichmäßig über den Walzenumfang bzw. die an den Wickelspalt angrenzende Kontaktfläche verteilt sind.According to a preferred practical embodiment, this scoring is carried out at least partially more frequently. It is advantageous if the various gears are distributed uniformly over the roll circumference or adjacent to the winding nip contact surface.

Die Rillung ist zweckmäßigerweise 1- bis 5-gängig ausgeführt. Dabei kann sie insbesondere zumindest teilweise 2-gängig, zumindest teilweise 3-gängig oder zumindest teilweise wenigstens 4-gängig ausgeführt sein.The grooving is expediently carried out 1 to 5 courses. In this case, it may in particular be at least partially 2-pass, at least partially 3-pass or at least partially at least 4-pass.

Durch die Mehrgängigkeit kann mehr Luft ausgetragen werden.Due to the multiple passes, more air can be discharged.

Auch durch eine bestimmte Querschnittsform der Rillen kann der Luftaustrag verbessert werden.Also by a certain cross-sectional shape of the grooves of the air discharge can be improved.

So besitzen die Rillen gemäß einer vorteilhaften Ausführungsform insbesondere von radial innen nach außen zumindest teilweise eine konkave Querschnittsform.Thus, the grooves according to an advantageous embodiment, in particular from radially inward to outward at least partially have a concave cross-sectional shape.

Gemäß einer weiteren zweckmäßigen Ausführungsform können diese Rillen insbesondere von radial innen nach außen zumindest teilweise auch eine linsenförmige Querschnittsform besitzen.According to a further expedient embodiment, these grooves may, in particular from radially inward to outward, at least partially also have a lenticular cross-sectional shape.

Sie können zumindest teilweise auch gepfeilt sein.You can at least partially be swept.

Denkbar ist vorteilhafterweise auch eine rechteckige oder trapezförmige Querschnittsform.Conceivable is advantageously also a rectangular or trapezoidal cross-sectional shape.

Vorteilhafterweise liegt die Rillensteigung zumindest teilweise im Bereich von etwa 300 mm bis etwa 1500 mm und vorzugsweise im Bereich von 600 mm.Advantageously, the groove pitch is at least partially in the range of about 300 mm to about 1500 mm, and preferably in the range of 600 mm.

Im Bereich der Walzenmitte kann ein Steg im Bereich von 0 mm bis etwa 200 mm verbleiben.In the area of the roll center, a web can remain in the range from 0 mm to about 200 mm.

Gemäß einer bevorzugten praktischen Ausführungsform der erfindungsgemäßen Anpresswalze ist die Gangzahl so an die Steigung angepasst, dass ein Steg im Bereich zwischen etwa 100 mm und etwa 400 mm und vorzugsweise im Bereich von 200 mm verbleibt.According to a preferred practical embodiment of the pressure roller according to the invention, the number of flights is adapted to the pitch so that a web remains in the range between about 100 mm and about 400 mm, and preferably in the range of 200 mm.

Die Anpresswalze besitzt vorzugsweise einen Durchmesser > 700 mm und vorzugsweise > 1000 mm.The pressure roller preferably has a diameter> 700 mm and preferably> 1000 mm.

Die Rillung kann direkt am Walzenkörper vorgesehen sein.The scoring may be provided directly on the roll body.

Gemäß einer weiteren bevorzugten Ausführungsform ist die Walze angetrieben. Damit kann die relative Geschwindigkeit zum Tambour kontrolliert werden, wodurch der Luftaustreibeffekt weiter optimiert werden kann. Hierbei kann insbesondere der Schlupf entsprechend kontrolliert werden.According to a further preferred embodiment, the roller is driven. Thus, the relative speed to the drum can be controlled, whereby the Luftaustreibeffekt can be further optimized. In this case, in particular, the slip can be controlled accordingly.

Erfindungsgemäß wird also die Kontaktfläche der Anpresswalze zum Tambour mit einer Rillung einer bestimmten Geometrie versehen. Wichtig ist, dass die Rillung im Wesentlichen spiralförmig von einem mittleren Bereich beginnend nach außen verläuft. Die Rillung kommt dabei mit der durch die eingewickelte Luft weichen Oberfläche des Tambours in Kontakt. Die Materialbahn taucht dabei etwas In die Rillen ein und bildet eine seitlich begrenzte Luftkammer für die eingewickelte Luft. Durch den spiralförmigen Verlauf wird diese nach außen gepumpt.According to the invention, therefore, the contact surface of the pressure roller is provided for tambour with a grooving a certain geometry. It is important that the scoring is substantially spiraling from a central region starting outwards. The scoring comes into contact with the surface of the spool, which is soft due to the wrapped air. The material web dips something into the grooves and forms a laterally limited air chamber for the wrapped air. Due to the spiral shape, it is pumped outwards.

Die Wirksamkeit hängt von der Geometrie der Rillen ab. Dabei ist die Rillung bevorzugt mehrgängig, d.h. z.B. 2- oder 3-gängig oder zumindest 4-gängig, wodurch mehr Luft ausgetragen werden kann.The effectiveness depends on the geometry of the grooves. The scoring is preferably more continuous, i. e.g. 2 or 3-speed or at least 4-speed, which allows more air to be discharged.

Die Form der Rillen kann insbesondere konkave, linsenförmig oder auch rechteckig oder trapezförmig usw. sein.The shape of the grooves may in particular be concave, lenticular or even rectangular or trapezoidal, etc.

Von besonderem Vorteil ist, wenn die Anpresswalze oder Tragtrommel angetrieben ist, um die Relativgeschwindigkeit zum Tambour kontrollieren zu können. Dadurch lässt sich der Luftaustreibeffekt weiter optimieren, wobei insbesondere der Schlupf entsprechend kontrolliert werden kann. Dadurch, dass die Kontaktfläche infolge der Rillung zum Tambour verringert wird, ist es von Vorteil, wenn die Nipkraft gesteuert und/oder geregelt wird, da Schwankungen die Flächenpressung stark beeinflussen und somit Markierungen in der Materialbahn erzeugen können. Durch die Erfindung ist es möglich, eine Blasenbildung zu vermeiden oder eine stabile Blase zu etablieren.It is particularly advantageous if the pressure roller or carrier drum is driven to control the relative speed to the drum can. As a result, the Luftaustreibeffekt can be further optimized, in particular the slip can be controlled accordingly. The fact that the contact surface is reduced as a result of the groove to the drum, it is advantageous if the nip force is controlled and / or regulated, since fluctuations greatly affect the surface pressure and thus can produce markings in the web. By the invention, it is possible to avoid blistering or to establish a stable bubble.

Der Rillenanfang auf beiden Seiten kann zwischen 0° und 360/ng (ng = Anzahl der Gänge) versetzt beginnen, vorzugsweise 360/ng/2. Das heißt, die Rillen beginnen in der Mitte und nicht an einem seitlichen Punkt. In der Mitte kann eine Überlappung von 0 bis 100 mm, vorzugsweise 0 mm vorgenommen werden. Die Gangzahl kann so an die Steigung angepasst sein, dass ein Steg im Bereich von etwa 100 bis etwa 400 mm, vorzugsweise im Bereich von 200 mm verbleibt.The groove beginning on both sides can start offset between 0 ° and 360 / ng (ng = number of the courses), preferably 360 / ng / 2. That is, the grooves start in the middle rather than at a lateral point. In the middle, an overlap of 0 to 100 mm, preferably 0 mm can be made. The number of flights can be adapted to the pitch so that a ridge remains in the range of about 100 to about 400 mm, preferably in the range of 200 mm.

Die erfindungsgemäße Wickelmaschine zeichnet sich dadurch aus, dass sie eine erfindungsgemäße Anpresswalze umfasst, die mit einem Tambour einen Wickelspalt bildet, durch den eine Materialbahn, insbesondere Papier- oder Kartonbahn hindurchgeführt wird, um anschließend auf den Tambour aufgewickelt zu werden.The winding machine according to the invention is characterized in that it comprises a pressure roller according to the invention, which forms a winding nip with a spool, through which a material web, in particular paper or board web is passed, to be subsequently wound onto the spool.

Die erfindungsgemäße Anpresswalze bzw. die erfindungsgemäße Wickelmaschine ist mit besonderem Vorteil zum Aufwickeln einer Materialbahn, insbesondere Papier- oder Kartonbahn verwendbar, deren Luftdurchlässigkeit < 50 ml/min nach Bendtsen nach DIN 53120-1 beträgt.The pressure roller according to the invention or the winding machine according to the invention is used with particular advantage for winding a material web, in particular paper or board web whose air permeability <50 ml / min according to Bendtsen according to DIN 53120-1.

Die Erfindung wird im Folgenden anhand von Ausführungsbeisplelen unter Bezugnahme auf die Zeichnung näher erläutert. In dieser zeigen:

Fig. 1
eine schematische Darstellung einer beispielhaften Ausführungsform einer Wickelmaschine mit einer dem Tambour zugeordneten Anpresswalze,
Fig. 2
eine schematische Darstellung einer beispielhaften Ausführungsform einer Anpresswalze mit eingängigen Rillen,
Fig. 3
eine schematische Darstellung einer beispielhaften Ausführungsform einer Anpresswalze mit 3-gängigen Rillen und
Fig. 4 - 6
beispielhafte Rillenquerschnittsformen.
The invention is explained below with reference to Ausführungsbeisplelen with reference to the drawings. In this show:
Fig. 1
1 is a schematic representation of an exemplary embodiment of a winding machine with a pressure roller assigned to the drum,
Fig. 2
1 is a schematic representation of an exemplary embodiment of a pressure roller with catchy grooves,
Fig. 3
a schematic representation of an exemplary embodiment of a pressure roller with 3-course grooves and
Fig. 4-6
exemplary groove cross-sectional shapes.

Fig. 1 zeigt in schematischer Darsteilung eine beispielhafte Ausführungsform einer Wickelmaschine 10 mit einer Anpresswalze 12, die mit einem Tambour 14 einen Wickelspalt 16 bildet, durch den eine Materialbahn 17 hindurchgeführt wird, um anschließend auf den Tambour 14 aufgewickelt zu werden. Fig. 1 shows a schematic Darsteilung an exemplary embodiment of a winding machine 10 with a pressure roller 12 which forms a winding nip 16 with a spool 14 through which a web of material 17 is passed, to be subsequently wound onto the spool 14.

Bei den bisher üblichen Wickelmaschinen dieser Art kann es zu einem Aufschwimmen der Materialbahn 17 auf die Anpresswalze 12 sowie zu Lufteinschlüssen beim Aufwickeln auf dem Tambour 14 kommen, wie dies in Fig. 1 angedeutet ist.In the hitherto customary winding machines of this type, there may be a floating of the material web 17 on the pressure roller 12 and air inclusions during winding on the spool 14, as in Fig. 1 is indicated.

Mit der erfindungsgemäßen Ausgestaltung der Anpresswalze können ein solches Aufschwimmen sowie solche Lufteinschlüsse weitgehend vermieden werden.With the embodiment of the pressure roller according to the invention such floating and such air pockets can be largely avoided.

Fig. 2 zeigt im rechten Teil in schematischer Darstellung eine beispielhafte Ausführungsform einer erfindungsgemäßen Anpresswalze 12 mit eingängigen Rillen 18, wie sie beispielsweise in der in der Fig. 1 dargestellten Wickelmaschine eingesetzt werden kann. Fig. 2 shows in the right part in a schematic representation of an exemplary embodiment of a pressure roller 12 according to the invention with catchy grooves 18, as shown for example in the in the Fig. 1 shown winding machine can be used.

Die an den Wickelspalt 14 (vgl. Fig. 1) angrenzende Walzenoberfläche 20 weist spiralförmig verlaufende, hier beispielsweise eingängige Rillen 18 auf, die jeweils eine Tiefe t im Bereich von etwa 0,4 mm bis etwa 1,5 mm und jeweils eine Breite b, vorzugsweise maximale Breite b, im Bereich von etwa 35 bis etwa 60 mm besitzen.The at the winding nip 14 (see. Fig. 1 ) adjacent roll surface 20 has spirally extending, here for example catchy grooves 18, each having a depth t in the range of about 0.4 mm to about 1.5 mm and each having a width b, preferably maximum width b, in the range of about 35 to about 60 mm.

Bevorzugt besitzen diese Rillen 18 eine Tiefe im Bereich von 0,8 mm.Preferably, these grooves 18 have a depth in the range of 0.8 mm.

Der linke Tell der Fig. 2 zeigt einen Querschnitt entlang der Linie A-A. Wie anhand dieser in Fig. 2 linken Darstellung einer betreffenden Rille zu erkennen ist, sind die Rillenkanten im vorliegenden Fall gebrochen.The left part of the Fig. 2 shows a cross section along the line AA. As based on this in Fig. 2 In the left-hand illustration of a respective groove, the groove edges are broken in the present case.

Die Rillensteigung rs kann zumindest teilweise im Bereich von etwa 300 mm bis etwa 1500 mm liegen, wobei sie im vorliegenden Fall beispielsweise im Bereich von etwa 600 mm liegt.The groove pitch rs may be at least partially in the range of about 300 mm to about 1500 mm, in the present case, for example, in the range of about 600 mm.

Fig. 3 zeigt in schematischer Darstellung eine beispielhafte Ausführungsform einer Anpresswalze 12 mit 3-gängigen Rillen 18 (ng = 3). Die Rillensteigung rs beträgt auch im vorliegenden Fall beispielsweise wieder etwa 600 mm. Im mittleren Walzenbereich kann eine Überlappung von insbesondere 0 bis 100 mm, vorzugsweise 0 mm vorgenommen werden. Die Gangzahl kann so an die Steigung angepasst sein, dass ein Steg 22 im Bereich von insbesondere etwa 100 bis etwa 400 mm, vorzugsweise im Bereich von 200 mm verbleibt. Fig. 3 shows a schematic representation of an exemplary embodiment of a pressure roller 12 with 3-way grooves 18 (ng = 3). The groove pitch rs is also in the present case, for example, again about 600 mm. In the middle roller area, an overlap of in particular 0 to 100 mm, preferably 0 mm can be made. The number of flights can be adapted to the pitch so that a web 22 in the range of in particular from about 100 to about 400 mm, preferably in the range of 200 mm remains.

In den Fig. 4 bis 6 sind beispielhafte Querschnittsförmen der Rillen 18 dargestellt.In the 4 to 6 exemplary cross-sectional profiles of the grooves 18 are shown.

So kann die jeweilige Rille 18 zumindest teilweise beispielsweise eine rechteckige (vgl. Fig. 4), eine trapezförmige (vgl. Fig. 5) oder eine beliebige andere Querschnittsform besitzen, beispielsweise eine solche, wie sie in der Fig. 6 dargestellt ist, bei der die beiden seitlichen Ränder der Rille 18 unterschiedlich geformt sind. Im vorliegenden Fall ist der rechte Rand durchgehend gerundet, während der linke Rand winklig ausgeführt ist.Thus, the respective groove 18 at least partially, for example, a rectangular (see. Fig. 4 ), a trapezoidal (cf. Fig. 5 ) or any other cross-sectional shape, for example, such as those in the Fig. 6 is shown, in which the two lateral edges of the groove 18 are formed differently. In the present case, the right edge is rounded throughout, while the left edge is angled.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

1010
Wickelmaschinewinder
1212
Anpresswalzepressure roller
1414
Tambourdrummer
1616
Wickelspaltwinding gap
1717
Materialbahnweb
1818
Rillengrooves
2020
Walzenoberflächeroll surface
2222
Stegweb
bb
Breitewidth
rsrs
Rillensteigunggroove pitch
tt
Tiefedepth

Claims (22)

  1. Pressure roll (12) for forming a winding nip (16) with a spool (14) in a winding machine (10) for winding up a material web (17), in particular a paper or board web,
    characterized in that
    the roll or belt surface (20) adjoining the winding nip (16) has at least single-start grooves (18) running spirally, which each have a depth (t) in the range from about 0.4 mm to about 1.5 mm and each have a width (b), preferably a maximum width (b), in the range from about 35 to about 60 mm, and
    in that the number of turns is coordinated with the pitch in such a way that a land (22) in the range between about 100 mm and about 400 mm and preferably in the region of 200 mm remains.
  2. Pressure roll according to Claim 1,
    characterized in that
    the grooves (18) each have a depth (t) in the region of 0.8 mm.
  3. Pressure roll according to Claim 1 or 2,
    characterized in that
    the grooves (18) each have a width (b), preferably a maximum width (b), in the region of 40 mm.
  4. Pressure roll according to one of the preceding claims,
    characterized in that
    the spiral grooves (18), as viewed in the direction of the roll axis or transversely with respect to the belt running direction, run outwards, starting from a central roll or belt region.
  5. Pressure roll according to one of the preceding claims,
    characterized in that
    the grooving is at least partly implemented with a single start.
  6. Pressure roll according to one of the preceding claims,
    characterized in that
    the grooving is at least partly implemented with multiple starts.
  7. Pressure roll according to Claim 6,
    characterized in that
    the various starts are distributed uniformly over the roll circumference.
  8. Pressure roll according to one of the preceding claims,
    characterized in that
    the grooving is at least partly implemented with 1 to 5 starts.
  9. Pressure roll according to one of the preceding claims,
    characterized in that
    the grooving is at least partly implemented with 2 starts.
  10. Pressure roll according to one of the preceding claims,
    characterized in that
    the grooving is at least partly implemented with 3 starts.
  11. Pressure roll according to one of the preceding claims,
    characterized in that
    the grooving is at least partly implemented with at least 4 starts.
  12. Pressure roll according to one of the preceding claims,
    characterized in that
    the grooves (18) at least partly have a concave cross-sectional shape, in particular radially from inside to outside.
  13. Pressure roll according to one of the preceding claims,
    characterized in that
    the grooves (18) at least partly have a lens-shaped cross-sectional shape, in particular radially from inside to outside.
  14. Pressure roll according to one of the preceding claims,
    characterized in that
    the grooves (18) at least partly have a rectangular cross-sectional shape.
  15. Pressure roll according to one of the preceding claims,
    characterized in that
    the grooves (18) at least partly have a trapezoidal cross-sectional shape.
  16. Pressure roll according to one of the preceding claims,
    characterized in that
    the groove pitch (rs) lies at least partly in the range from about 300 mm to about 1500 mm and preferably in the range of 600 mm.
  17. Pressure roll according to one of the preceding claims,
    characterized in that
    in the region of the centre of the roll, a land (22) in the range from 0 mm to about 200 mm remains.
  18. Pressure roll according to one of the preceding claims,
    characterized in that the pressure roll (12) has a diameter > 700 mm and preferably > 1000 mm.
  19. Pressure roll according to one of the preceding claims,
    characterized in that
    the grooving is provided directly on the roll body.
  20. Pressure roll according to one of the preceding claims,
    characterized in that
    the roll (12) is driven.
  21. Winding machine (10) having a pressure roll (12) according to one of the preceding claims, which, with a spool (14), forms a winding nip (16), through which a material web (17), in particular a paper or board web, is led, in order then to be wound onto the spool (14).
  22. Use of the pressure roll (12) or the winding machine (10) according to one of the preceding claims for winding up a material web, in particular a paper or board web, of which the air permeability is < 50 ml/min according to Bendtsen.
EP07787447A 2006-08-04 2007-07-12 Pressure roll or continuous pressure belt Not-in-force EP2049424B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006036875A DE102006036875A1 (en) 2006-08-04 2006-08-04 Pressure roller or rotating pressure belt
PCT/EP2007/057176 WO2008015089A2 (en) 2006-08-04 2007-07-12 Pressure roll or continuous pressure belt

Publications (2)

Publication Number Publication Date
EP2049424A2 EP2049424A2 (en) 2009-04-22
EP2049424B1 true EP2049424B1 (en) 2012-09-12

Family

ID=38515300

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07787447A Not-in-force EP2049424B1 (en) 2006-08-04 2007-07-12 Pressure roll or continuous pressure belt

Country Status (5)

Country Link
US (1) US8191817B2 (en)
EP (1) EP2049424B1 (en)
CA (1) CA2659338A1 (en)
DE (1) DE102006036875A1 (en)
WO (1) WO2008015089A2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103891024B (en) * 2011-10-31 2017-04-12 三洋电机株式会社 Cell provided with spiral electrode, and method for manufacturing same
US10011448B1 (en) * 2016-12-29 2018-07-03 Kabushiki Kaisha Toshiba Sheet transport apparatus and sheet processing apparatus
JP6855304B2 (en) * 2017-03-30 2021-04-07 リンテック株式会社 Touch roller, web winding method

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB300476A (en) * 1928-05-14 1928-11-15 Carl Winkler Improvements in belt drives for the paper rolls of rotary printing machines
US2717037A (en) * 1950-05-03 1955-09-06 Beloit Iron Works Winder and sheet separator
JPH0288958U (en) * 1988-12-26 1990-07-13
FI94231C (en) 1993-12-16 1995-08-10 Valmet Paper Machinery Inc Method and apparatus for winding a web of paper or paperboard in a pope winder or the like
ATE250546T1 (en) * 1995-02-21 2003-10-15 Voith Sulzer Papiermasch Gmbh DEVICE FOR ON OR UNWINDING OF WEB-SHAPED GOODS, PARTICULARLY FIBROUS WEBBINGS
FI104065B (en) * 1998-04-24 1999-11-15 Valmet Corp A roller assembly
FI107327B (en) * 1998-05-18 2001-07-13 Metso Paper Inc Wheelchair of a paper web and its cylinder
DE19848815A1 (en) * 1998-10-22 2000-04-27 Voith Sulzer Papiertech Patent Winding machine
DE19848816A1 (en) * 1998-10-22 2000-04-27 Voith Sulzer Papiertech Patent Winding machine
DE19908496A1 (en) * 1999-02-26 2000-08-31 Voith Sulzer Papiertech Patent Machine for continuous reeling of materials, in particular, paper and cardboard comprises air excluder unit in form of compound element consisting of main body and low-friction lining on its working surface
DE19950175A1 (en) * 1999-10-19 2001-04-26 Werner Muelfarth Spreader roll for handling continuous film includes an elastic covering containing a spiral region of harder elastic properties
DE10023057A1 (en) * 2000-05-11 2001-11-15 Voith Paper Patent Gmbh Winding machine for the continuous winding of a material web
DE10150779A1 (en) * 2001-10-15 2003-04-17 Windmoeller & Hoelscher Machine for forming reels of strip material has contact rollers mounted on star-shaped frame, allowing rollers to be changed easily when reel is changed
FI117863B (en) * 2002-08-09 2007-03-30 Metso Paper Inc A method and apparatus for threading a web to winding a paper or board web

Also Published As

Publication number Publication date
EP2049424A2 (en) 2009-04-22
US8191817B2 (en) 2012-06-05
WO2008015089A2 (en) 2008-02-07
US20090166466A1 (en) 2009-07-02
CA2659338A1 (en) 2008-02-07
DE102006036875A1 (en) 2008-02-07
WO2008015089A3 (en) 2008-06-12

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