EP1055624A2 - Device for winding a web - Google Patents

Device for winding a web Download PDF

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Publication number
EP1055624A2
EP1055624A2 EP00106537A EP00106537A EP1055624A2 EP 1055624 A2 EP1055624 A2 EP 1055624A2 EP 00106537 A EP00106537 A EP 00106537A EP 00106537 A EP00106537 A EP 00106537A EP 1055624 A2 EP1055624 A2 EP 1055624A2
Authority
EP
European Patent Office
Prior art keywords
winding
air
secondary transport
drum
squeezing element
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP00106537A
Other languages
German (de)
French (fr)
Other versions
EP1055624A3 (en
EP1055624B1 (en
Inventor
Zygmunt Madrzak
Ewald Wetschenbacher
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Voith Patent GmbH
Original Assignee
Voith Sulzer Papiermaschinen GmbH
Voith Paper Patent GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Voith Sulzer Papiermaschinen GmbH, Voith Paper Patent GmbH filed Critical Voith Sulzer Papiermaschinen GmbH
Publication of EP1055624A2 publication Critical patent/EP1055624A2/en
Publication of EP1055624A3 publication Critical patent/EP1055624A3/en
Application granted granted Critical
Publication of EP1055624B1 publication Critical patent/EP1055624B1/en
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Expired - Lifetime legal-status Critical Current

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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
    • B65H19/2261—Pope-roller
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H18/00—Winding webs
    • B65H18/08—Web-winding mechanisms
    • B65H18/14—Mechanisms in which power is applied to web roll, e.g. to effect continuous advancement of web
    • B65H18/16—Mechanisms in which power is applied to web roll, e.g. to effect continuous advancement of web by friction roller
    • 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
    • B65H2408/00—Specific machines
    • B65H2408/20—Specific machines for handling web(s)
    • B65H2408/23—Winding machines
    • B65H2408/2362—Winding machines with two secondary winding spools, e.g. on separate carriages
    • B65H2408/2364—Winding machines with two secondary winding spools, e.g. on separate carriages with additional element for facilitating web roll change
    • 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 device for winding a material web, in particular a paper or cardboard web.
  • the starting point of the invention is the patent publication JP 4-153153A.
  • This document discloses a device for winding a material web with the features that are specified in the preamble of claim 1.
  • Air squeezing element is provided a roller 101 which is rotatably mounted in pivot levers is. Pressure cylinders engage on the swivel levers, so that the roller 101 with the Winding roll can be brought into contact.
  • the winding core of the winding roll is in contact with a secondary transport device 31, 12 on which the (the air squeezing element 101 carrying) pivot levers are stored.
  • the during the winding process with the Carrier drum 64 in contact with the winding roll 1 (FIG. 7A) together with the Air squeeze element 101 away from the carrier drum into a reel change position ( Figure 7B) proceed.
  • a similar winding device, the air squeezing element preferably as a brush is known from EP 0714373.
  • the air squeeze element also serves the purpose of ensuring proper winding is possible if (to prepare a reel change) the winding roll on one Distance from the carrier drum. This will result in an undesired drawing in of Prevents air between the layers of paper.
  • the air squeeze element also keeps up the drum change, the severed end of the web on the winding roll while this is still rotated and braked.
  • the pressure device belonging to the air squeezing element is controllable in such a way that the air squeezing element with a defined contact pressure is in contact with the winding roll, even if - as long as the winding process has not yet been completed is - the diameter of the winding roll is still increasing.
  • winding devices An additional requirement on the winding devices is that it is possible must be, in exceptional cases, to remove a winding roll prematurely from the machine. In In such a case, it may be that only a relatively small amount of paper has been wound up by this point has been so that the winding roll diameter (or the layer thickness) only one Fraction of the usually achievable value. In this case, the air squeezing element the known winding devices because of the relatively small stroke Pressing device, not to be brought into contact with the winding roll.
  • the invention is therefore based on the object, the device described above to further develop a material web so that the air squeeze element can also be brought into contact with the winding roll if a Reel change done in a relatively short time after the start of the winding process should be, i.e. even if the winding roll to be removed is exceptional has a relatively small diameter.
  • the invention is preferably applicable to the known winding machine according to Patent application WO 98/52858 (file PR 10706). After that it is a Winding machine, the carrier drum of which can preferably be displaced in the horizontal direction, in order to be able to adjust the level of the line force in the winding gap sensitively.
  • FIG. 1 An exemplary embodiment of the invention is described below with reference to the drawing.
  • FIG. 1 shows a winding machine in a schematic side view, respectively in different operating states.
  • a paper web 9 to be wound runs from below onto a carrying drum 10, which also The paper web wraps around the upper area of the carrying drum and finally runs through a winding nip which the carrying drum 10 forms with a winding roll 11.
  • the winding roll 11 is formed during a winding process on a winding core, preferably a drum-shaped drum 12.
  • the drum 12 is supported at both ends on a rail 13, which is part of a machine frame 14.
  • each of the machine frames 14 there is a secondary transport carriage 15 which can be moved along a horizontal guideway 16, for example with the aid of a Threaded spindle 17 or a similar drive.
  • the support drum 10 rotatably rests in bearings 19, which are only symbolically represented as a point and which are displaceable along a preferably horizontal guide 18.
  • This is one not shown.
  • hydraulic shifting device is provided, which the carrier drum with a desired adjustable line force to the winding roll 11 presses.
  • the guide can be so long that the above Moving the winding roll 11 on the rails 13 during the normal winding process is not required. In both cases, however, the following applies:
  • This primary transport device 23 essentially comprises two pivot levers, each of which is pivotally mounted in a fixed bearing 24 is.
  • a drive for the carrying drum 10 and also a first center drive for the new drum 22 (effective as long as the new drum 22 in the primary transport device 23) and a second center drive that takes effect when the primary transport device 23 the drum (after the start of a new winding process) has placed on the horizontal guideway 13.
  • An important feature of the winding machine according to the invention is an air squeeze element 25, carried by the secondary transport device 15.
  • the air squeeze element 1 is some time before the end of a winding process, ie shortly before Start of a reel change process, for example from below onto the winding roll 11 pressed.
  • the air squeeze element 25 ensures that air is wrapped between the layers of paper is prevented.
  • the carrying drum is in the operating state according to FIG. 2 10 at an end stop 21 of the guide 18.
  • the new drum 22 moved down by means of the primary transport device 23, preferably 3 in a position in which there is still a certain distance between the new drum 22 and the guide rails 13. This is the so-called wrap start position.
  • the paper web 9 still runs to the winding roll 11, whereby the new Slightly loops around the drum 22 and the new drum 22 carries the drum 10 again pushed away from the stop 21. This can in the new winding gap (between the carrying drum 10 and the new drum 22) the line force acting there already be set precisely before the start of the new winding process.
  • the new winding process is triggered in a known manner in that a separating element (symbolically represented by an arrow 30) transversely cuts the running paper web 9. This creates a new beginning of the web, which puts on the new drum 22, so that a new winding roll 11 a arises; see Fig. 4. Now the full winding roll 11 is braked, the Air squeeze element remains in contact with the winding roll 11 so that the end of the paper web is held on the winding roll.
  • a separating element symbolically represented by an arrow 30
  • the finished winding roll 11 is at the end of the reel change process in an end position still further away from the carrying drum. If the Winding roller 11 is braked to a standstill, the air squeeze element 25 is from the Winding roll removed as shown in Fig. 4; the winding roll can now (for example with With the help of a crane).
  • the secondary transport device then moves back together with the air squeeze element 25 in the vicinity of the carrying drum 10, where she picks up the new drum 22 with the new winding roller 11a. If the latter has reached the desired layer thickness, a new begins according to FIG. 1 Reel change process.
  • a brush is shown as an air squeeze element 25, which is transverse extends over the entire paper web 9.
  • a pressing device 26 is shown in the Exemplary embodiment, a pneumatic hose 26 is provided, which also extends across the winding machine extends and carries the air squeeze element 25. If the pneumatic hose 26 is pressurized with compressed air, he presses the air squeezing element 25 against the Winding roll 11 (Fig. 1-3). When the pressure is released, the air squeezing element 25 is removed from the winding roll 11 (Fig. 4).
  • the air squeezing element rests on a cross member which is attached at both ends to a pivot lever, so that the air squeezing element (as in the prior art) is pivotable up and down.
  • the air squeeze element 25 can be designed differently; instead of a brush is the use a single or multi-part roller is possible: different designs are also available Patent application 19908496 applicable.
  • a lifting device (designated in the drawing as a whole with 27) is provided which the air squeeze element 25 and its pressing device 26 carries.
  • a cross member 28 which extends across the winding machine extends from one to the other secondary transport carriage 15.
  • Each secondary transport carriage 15 has a preferably vertical guide 29 along which the cross member 28 can be moved together with the air squeeze element 25. To move the cross member 28 along the guideway 29 is used only symbolically Drive 31 shown.
  • the lifting device 27 serves the purpose of the Lucasququetscelement 25 and its pressing device 26 into one corresponding to the current layer thickness of the winding roll Distance from the winding roll axis of rotation; see for example Figures 5 and 6.
  • a reel change is prepared, although the winding roll 11b is one (compared to Figure 1) has a small layer thickness S1.
  • the pneumatic hose 26 still depressurized and the cross member 28 is still in a lower one Position.
  • the cross member 28 with the air squeezing element 25 ramped up according to the existing layer thickness S1; after that it will Air squeeze element 25 by applying pressure in the pneumatic hose 26 to the Winding roll 11b created.
  • the secondary transport device 15 can the winding roll 11b together with the applied air squeezing element 25 into the reel change position transport; see Figure 6.

Abstract

The arrangement has a secondary transport mechanism (15) with a lifting device (27) that carries an air squeezing element (2 and its pressure device (26) and that is suitable for moving the air squeezing element and its pressure device to a distance fro the spool roll (11b) rotation axis corresp. to the current layer thickness (S1).

Description

Die Erfindung betrifft eine Vorrichtung zum Aufwickeln einer Materialbahn, insbesondere einer Papier- oder Kartonbahn. Ausgangspunkt der Erfindung ist die Patentveröffentlichung JP 4-153153A. Diese Schrift offenbart eine Vorrichtung zum Aufwickeln einer Materialbahn mit den Merkmalen, die im Oberbegriff des Patentanspruches 1 angegeben sind. Als Luftabquetschelement ist eine Walze 101 vorgesehen, die in Schwenkhebeln drehbar gelagert ist. An den Schwenkhebeln greifen Andrückzylinder an, so daß die Walze 101 mit der Wickelrolle in Kontakt gebracht werden kann. Der Wickelkern der Wickelrolle steht im Kontakt mit einer Sekundär-Transporteinrichtung 31,12 an dem die (das Luftabquetschelement 101 tragenden) Schwenkhebel gelagert sind. Die während des Wickelvorganges mit der Tragtrommel 64 in Kontakt stehende Wickelrolle 1 (Figur 7A) wird zusammen mit dem Luftabquetschelement 101 von der Tragtrommel hinweg in eine Tambourwechselposition (Figur 7B) verfahren.The invention relates to a device for winding a material web, in particular a paper or cardboard web. The starting point of the invention is the patent publication JP 4-153153A. This document discloses a device for winding a material web with the features that are specified in the preamble of claim 1. As Air squeezing element is provided a roller 101 which is rotatably mounted in pivot levers is. Pressure cylinders engage on the swivel levers, so that the roller 101 with the Winding roll can be brought into contact. The winding core of the winding roll is in contact with a secondary transport device 31, 12 on which the (the air squeezing element 101 carrying) pivot levers are stored. The during the winding process with the Carrier drum 64 in contact with the winding roll 1 (FIG. 7A) together with the Air squeeze element 101 away from the carrier drum into a reel change position (Figure 7B) proceed.

Eine ähnliche Wickelvorrichtung, deren Luftabquetschelement vorzugsweise als Bürste ausgebildet ist, ist bekannt aus EP 0714373.A similar winding device, the air squeezing element preferably as a brush is known from EP 0714373.

Das Luftabquetschelement dient zu dem Zweck, daß ein ordnungsgemäßes Wickeln auch dann möglich ist, wenn (zur Vorbereitung eines Tambourwechsels) die Wickelrolle auf einen Abstand von der Tragtrommel verfahren wird. Dabei wird ein unerwünschtes Einziehen von Luft zwischen die Papierlagen verhindert. Außerdem hält das Luftabquetschelement nach dem Tambourwechsel das abgetrennte Bahnende an der Wickelrolle fest, während diese noch rotiert und abgebremst wird. Die zum Luftabquetschelement gehörende Andrückeinrichtung ist derart steuerbar, daß das Luftabquetschelement mit einer definierten Anpreßkraft an der Wickelrolle anliegt, auch wenn - solange der Wickelvorgang noch nicht abgeschlossen ist - der Durchmesser der Wickelrolle noch zunimmt. The air squeeze element also serves the purpose of ensuring proper winding is possible if (to prepare a reel change) the winding roll on one Distance from the carrier drum. This will result in an undesired drawing in of Prevents air between the layers of paper. The air squeeze element also keeps up the drum change, the severed end of the web on the winding roll while this is still rotated and braked. The pressure device belonging to the air squeezing element is controllable in such a way that the air squeezing element with a defined contact pressure is in contact with the winding roll, even if - as long as the winding process has not yet been completed is - the diameter of the winding roll is still increasing.

Bekanntlich wird an Wickelvorrichtungen der eingangs beschriebenen Art die Forderung gestellt, daß Wickelrollen mit möglichst großem Durchmesser (d.h. mit möglichst großer Schichtdicke) gebildet werden können. Bei den bekannten Wickelvorrichtungen ist das Luftabquetschelement mit seiner Andrückeinrichtung im unteren Bereich der Wickelvorrichtung angeordnet.As is known, the requirement for winding devices of the type described in the introduction that winding rolls with the largest possible diameter (i.e. with the largest possible Layer thickness) can be formed. In the known winding devices that is Air squeeze element with its pressing device in the lower area of the winding device arranged.

Eine zusätzliche Anforderung an die Wickelvorrichtungen besteht nun darin, daß es möglich sein muß, in Ausnahmefällen eine Wickelrolle vorzeitig aus der Maschine zu entfernen. In einem solchen Fall kann es sein, daß bis zu diesem Zeitpunkt nur relativ wenig Papier aufgewickelt worden ist, so daß der Wickelrollendurchmesser (bzw. die Schichtdicke) nur einen Bruchteil des üblicherweise erreichbaren Wertes aufweist. In diesem Fall kann das Luftabquetschelement der bekannten Wickelvorrichtungen wegen des relativ geringen Hubes der Andrückeinrichtung, nicht mit der Wickelrolle in Kontakt gebracht werden.An additional requirement on the winding devices is that it is possible must be, in exceptional cases, to remove a winding roll prematurely from the machine. In In such a case, it may be that only a relatively small amount of paper has been wound up by this point has been so that the winding roll diameter (or the layer thickness) only one Fraction of the usually achievable value. In this case, the air squeezing element the known winding devices because of the relatively small stroke Pressing device, not to be brought into contact with the winding roll.

Der Erfindung liegt deshalb die Aufgabe zugrunde, die eingangs beschriebene Vorrichtung zum Aufwickeln einer Materialbahn dahingehend weiter zu entwickeln, daß das Luftabquetschelement auch dann mit der Wickelrolle in Kontakt gebracht werden kann, wenn ein Tambourwechsel schon in relativ kurzer Zeit nach dem Start des Wickelvorganges durchgeführt werden soll, d.h. auch dann wenn die zu entfernende Wickelrolle ausnahmsweise einen relativ kleinen Durchmesser aufweist.The invention is therefore based on the object, the device described above to further develop a material web so that the air squeeze element can also be brought into contact with the winding roll if a Reel change done in a relatively short time after the start of the winding process should be, i.e. even if the winding roll to be removed is exceptional has a relatively small diameter.

Diese Aufgabe wird durch die kennzeichnenden Merkmale des Anspruches 1 gelöst.This object is achieved by the characterizing features of claim 1.

Gemäß der Erfindung werden für das Luftabquetschelement drei von einander unabhängige Bewegungsmöglichkeiten vorgesehen:

  • 1. Eine wenigstens angenähert (bezüglich der Wickelrollen-Drehachse) radiale Bewegung, vorzugsweise in etwa vertikaler Richtung, um das Luftabquetschelement an die Mantelfläche der Wickelrolle - unter Berücksichtigung der jeweiligen Größe der Schichtdicke - heranzufahren;
  • 2. Eine mittels der Anpreßeinrichtung ausführbare und die Höhe der Anpreßkraft bestimmende Justierbewegung, wobei die Anpreßkraft wenigstens angenähert konstant gehalten wird, zunächst solange die Schichtdicke noch zunimmt, danach ebenso bei gleichbleibender Schichtdicke.
  • 3. Eine Bewegung in wenigstens angenähert horizontaler Richtung, bei welcher das Luftabquetschelement der Bewegung der Wickelrolle in die Tambourwechsel-Position folgt.
    • According to the invention, three mutually independent movement options are provided for the air squeezing element:
  • 1. An at least approximate (with respect to the winding roll axis of rotation) radial movement, preferably in approximately the vertical direction, in order to move the air squeezing element to the outer surface of the winding roll - taking into account the respective size of the layer thickness;
  • 2. An adjustment movement which can be carried out by means of the pressing device and which determines the amount of the pressing force, the pressing force being kept at least approximately constant, initially as long as the layer thickness is still increasing, then likewise with the layer thickness remaining the same.
  • 3. A movement in at least approximately a horizontal direction, in which the air squeezing element follows the movement of the winding roller into the reel changing position.

    • Die Erfindung ist bevorzugt anwendbar bei der bekannten Wickelmaschine gemäß Patentanmeldung WO 98/52858 (Akte PR 10706). Danach handelt es sich um eine Wickelmaschine, deren Tragtrommel vorzugsweise in horizontaler Richtung verlagerbar ist, um hierdurch die Höhe der Linienkraft im Wickelspalt feinfühlig einstellen zu können.The invention is preferably applicable to the known winding machine according to Patent application WO 98/52858 (file PR 10706). After that it is a Winding machine, the carrier drum of which can preferably be displaced in the horizontal direction, in order to be able to adjust the level of the line force in the winding gap sensitively.

    Ein Aufführungsbeispiel der Erfindung wird nachfolgend anhand der Zeichnung beschrieben. Jede der Figuren 1-6 zeigt eine Wickelmaschine in schematischer Seitenansicht, jeweils in unterschiedlichen Betriebszuständen.An exemplary embodiment of the invention is described below with reference to the drawing. Each of Figures 1-6 shows a winding machine in a schematic side view, respectively in different operating states.

    Eine aufzuwickelnde Papierbahn 9 läuft von unten her auf eine Tragrommel 10, die auch

    Figure 00030001
    Anpreßtrommel" genannt wird. Die Papierbahn umschlingt den oberen Bereich der Tragtrommel und läuft schließlich durch einen Wickelspalt, den die Tragtrommel 10 mit einer Wickelrolle 11 bildet. Die Wickelrolle 11 entsteht während eines Wickelvorganges auf einem Wickelkern, vorzugsweise einem walzenförmigen Tambour 12. Der Tambour 12 ist an seinen beiden Enden auf je einer Schiene 13 abgestützt, die Teil eines Maschinengestelles 14 ist.A paper web 9 to be wound runs from below onto a carrying drum 10, which also
    Figure 00030001
    The paper web wraps around the upper area of the carrying drum and finally runs through a winding nip which the carrying drum 10 forms with a winding roll 11. The winding roll 11 is formed during a winding process on a winding core, preferably a drum-shaped drum 12. The drum 12 is supported at both ends on a rail 13, which is part of a machine frame 14.

    An jedem der Maschinengestelle 14 befindet sich ein Sekundär-Transportschlitten 15, der entlang einer horizontalen Führungsbahn 16 verfahrbar ist, beispielsweise mit Hilfe einer Gewindespindel 17 oder eines ähnlichen Antriebes. On each of the machine frames 14 there is a secondary transport carriage 15 which can be moved along a horizontal guideway 16, for example with the aid of a Threaded spindle 17 or a similar drive.

    Durch dieses Verfahren der Wickelrolle 11 auf den Schienen 13 wird die Position des Tambours 12 während eines Wickelvor-ganges ständig (kontinuierlich oder in kleinen Stufen) an den zunehmenden Durchmesser
    der Wickelrolle (d. h. an die zunehmende Schichtdicke S) angepaßt.    By moving the winding roller 11 on the rails 13, the position of the reel 12 continuously (continuously or in small steps) at the increasing diameter during a winding process
    adapted to the winding roll (ie to the increasing layer thickness S).

    Die Tragtrommel 10 ruht drehbar in Lagern 19, die nur symbolisch als ein Punkt dargestellt und die entlang einer vorzugsweise horizontalen Führung 18 verschiebbar sind. Hierzu ist eine nicht dargestellte. beispielsweise hydraulische Verschiebeeinrichtung vorgesehen, welche die Tragtrommel mit einer gewünschten einstellbaren Linienkraft an die Wickelrolle 11 andrückt. Abweichend von der Zeichnung kann die Führung so lang sein, daß das genannte Verfahren der Wickelrolle 11 auf den Schienen 13 während des normalen Wickelvorganges nicht erforderlich ist. In beiden Fällen aber gilt folgendes:The support drum 10 rotatably rests in bearings 19, which are only symbolically represented as a point and which are displaceable along a preferably horizontal guide 18. This is one not shown. for example hydraulic shifting device is provided, which the carrier drum with a desired adjustable line force to the winding roll 11 presses. Deviating from the drawing, the guide can be so long that the above Moving the winding roll 11 on the rails 13 during the normal winding process is not required. In both cases, however, the following applies:

    Zur Vorbereitung eines - bei kontinuierlich zulaufender Papierbahn 9 - durchzuführenden Tambourwechsels ist ein neuer, noch leerer Tambour 22 in eine Primär-Transporteinrichtung 23 eingesetzt worden. Diese Primär-Transporteinrichtung 23 umfaßt im wesentlichen zwei Schwenkhebel, von denen jeder in einem ortsfesten Lager 24 schwenkbar gelagert ist.To prepare a - to be carried out - with continuously running paper web 9 Reel change is a new, still empty reel 22 in a primary transport device 23 have been used. This primary transport device 23 essentially comprises two pivot levers, each of which is pivotally mounted in a fixed bearing 24 is.

    Nicht dargestellt sind ein Antrieb für die Tragtrommel 10, ferner ein erster Zentrumsantrieb für den neuen Tambour 22 (wirksam solange der neue Tambour 22 in der Primär-Transporteinrichtung 23 gelagert ist) und ein zweiter Zentrumsantrieb, der wirksam wird, wenn die Primär- Transporteinrichtung 23 den Tambour (nach Beginn eines neuen Wickelvorganges) auf die horizontale Führungsbahn 13 abgelegt hat.Not shown are a drive for the carrying drum 10 and also a first center drive for the new drum 22 (effective as long as the new drum 22 in the primary transport device 23) and a second center drive that takes effect when the primary transport device 23 the drum (after the start of a new winding process) has placed on the horizontal guideway 13.

    Ein wichtiges Merkmal der erfindungsgemäßen Wickelmaschine ist ein Luftabquetschelement 25, getragen von der Sekundär-Transporteinrichtung 15. Das Luftabquetschelement 25 wird gemäß Fig. 1 einige Zeit vor dem Ende eines Wickelvorganges, also kurz vor dem Beginn eines Tambourwechsel-Vorganges, beispielsweise von unten her an die Wickelrolle 11 angedrückt. An important feature of the winding machine according to the invention is an air squeeze element 25, carried by the secondary transport device 15. The air squeeze element 1 is some time before the end of a winding process, ie shortly before Start of a reel change process, for example from below onto the winding roll 11 pressed.

    Zur Durchführung des Tambourwechsels werden die nahezu volle Wickelrolle 11 mit dem Tambour 12 gemeinsam mit dem Luftabquetschelement 25 gemäß Fig. 2 auf den Schienen 13 von der Tragtrommel 10 entfernt und in eine Tambourwechselposition gebracht. Hierbei sorgt das Luftabquetschelement 25 dafür, daß ein Einwickeln von Luft zwischen die Papierlagen verhindert wird. In dem Betriebszustand gemäß Fig. 2 befindet sich die Tragtrommel 10 an einem Endanschlag 21 der Führung 18.To carry out the reel change, the almost full winding roll 11 with the Drum 12 together with the air squeeze element 25 according to FIG. 2 on the rails 13 removed from the support drum 10 and brought into a reel change position. Here the air squeeze element 25 ensures that air is wrapped between the layers of paper is prevented. The carrying drum is in the operating state according to FIG. 2 10 at an end stop 21 of the guide 18.

    Nachdem die Wickelrolle 11 die Tambourwechsel-Position (Fig. 2) erreicht hat, wird der neue Tambour 22 mittels der Primär-Transporteinrichtung 23 nach unten gefahren, vorzugsweise gemäß Fig. 3 in eine Position, in der noch ein gewisser Abstand zwischen dem neuen Tambour 22 und den Führungsschienen 13 besteht. Dies ist die sogenannte Wickel-Startposition. Zunächst läuft die Papierbahn 9 noch zur Wickelrolle 11, wobei sie den neuen Tambour 22 geringfügig umschlingt und wobei der neue Tambour 22 die Tragtrommel 10 wieder von dem Anschlag 21 weggedrückt hat. Dadurch kann in dem neuen Wickelspalt (zwischen Tragtrommel 10 und dem neuen Tambour 22) die dort wirkende Linienkraft schon vor dem Beginn des neuen Wickelvorganges präzise eingestellt werden. Der neue Wickelvorgang wird in bekannter Weise dadurch ausgelöst, daß ein Trennelement (symbolisch dargestellt durch einen Pfeil 30) die laufende Papierbahn 9 quer durchtrennt. Dabei entsteht ein neuer Bahnanfang, der sich an den neuen Tambour 22 anlegt, so daß eine neue Wickelrolle 11 a entsteht; siehe Fig. 4. Nun wird die volle Wickelrolle 11 abgebremst, wobei das Luftabquetschelement in Kontakt mit der Wickelrolle 11 verbleibt, so daß das Ende der Papierbahn an der Wickelrolle festgehalten wird.After the winding roller 11 has reached the reel change position (Fig. 2), the new drum 22 moved down by means of the primary transport device 23, preferably 3 in a position in which there is still a certain distance between the new drum 22 and the guide rails 13. This is the so-called wrap start position. First of all, the paper web 9 still runs to the winding roll 11, whereby the new Slightly loops around the drum 22 and the new drum 22 carries the drum 10 again pushed away from the stop 21. This can in the new winding gap (between the carrying drum 10 and the new drum 22) the line force acting there already be set precisely before the start of the new winding process. The new winding process is triggered in a known manner in that a separating element (symbolically represented by an arrow 30) transversely cuts the running paper web 9. This creates a new beginning of the web, which puts on the new drum 22, so that a new winding roll 11 a arises; see Fig. 4. Now the full winding roll 11 is braked, the Air squeeze element remains in contact with the winding roll 11 so that the end of the paper web is held on the winding roll.

    Gemäß Fig. 4 befindet sich die fertige Wickelrolle 11 am Ende des Tambourwechsel-Vorganges in einer noch weiter von der Tragtrommel entfernten Endposition. Wenn die Wickelrolle 11 bis zum Stillstand abgebremst ist, wird das Luftabquetschelement 25 von der Wickelrolle entfernt, wie in Fig. 4 dargestellt; die Wickelrolle kann nun (beispielsweise mit Hilfe eines Kranes) abtransportiert werden. 4, the finished winding roll 11 is at the end of the reel change process in an end position still further away from the carrying drum. If the Winding roller 11 is braked to a standstill, the air squeeze element 25 is from the Winding roll removed as shown in Fig. 4; the winding roll can now (for example with With the help of a crane).

    Danach wandert die Sekundär-Transporteinrichtung zusammen mit dem Luftabquetschelement 25 zurück in die Nähe der Tragtrommel 10, wo sie den neuen Tambour 22 mit der neuen Wickelrolle 11a aufnimmt. Wenn die letztere die gewünschte Schichtdicke erreicht hat, beginnt gemäß Fig. 1 wieder ein neuer Tambourwechsel-Vorgang.The secondary transport device then moves back together with the air squeeze element 25 in the vicinity of the carrying drum 10, where she picks up the new drum 22 with the new winding roller 11a. If the latter has reached the desired layer thickness, a new begins according to FIG. 1 Reel change process.

    Nunmehr werden weitere, zum Luftabquetschelement 25 gehörende Einzelheiten der Erfindung beschrieben: Dargestellt ist als Luftabquetschelement 25 eine Bürste, die sich quer über die ganze Papierbahn 9 erstreckt. Als Andrückeinrichtung 26 ist beim dargestellten Ausführungsbeispiel ein Pneumatikschlauch 26 vorgesehen, der sich ebenfalls quer durch die Wickelmaschine erstreckt und das Luftabquetschelement 25 trägt. Wenn der Pneumatikschlauch 26 mit Druckluft beaufschlagt ist, drückt er das Luftabquetschelement 25 an die Wickelrolle 11 (Fig. 1-3). Bei Druckentlastung entfernt sich das Luftabquetschelement 25 von der Wickelrolle 11 (Fig. 4). Abweichend von der dargestellten Andrückeinrichtung 26 kann folgendes vorgesehen sein: Das Luftabquetschelement ruht auf einem Querträger, der an seinen beiden Enden an je einem Schwenkhebel befestigt ist, so daß das Luftabquetschelement (wie beim Stand der Technik) auf und ab schwenkbar ist. Auch das Luftabquetschelement 25 kann unterschiedlich gestaltet sein; anstelle einer Bürste ist die Verwendung einer ein- oder mehrteiligen Walze möglich: ebenso sind verschiedene Bauformen gemäß Patentanmeldung 19908496 anwendbar.Further details of the invention belonging to the air squeeze element 25 will now be described Described: A brush is shown as an air squeeze element 25, which is transverse extends over the entire paper web 9. As a pressing device 26 is shown in the Exemplary embodiment, a pneumatic hose 26 is provided, which also extends across the winding machine extends and carries the air squeeze element 25. If the pneumatic hose 26 is pressurized with compressed air, he presses the air squeezing element 25 against the Winding roll 11 (Fig. 1-3). When the pressure is released, the air squeezing element 25 is removed from the winding roll 11 (Fig. 4). Deviating from the shown pressing device 26 the following can be provided: the air squeezing element rests on a cross member which is attached at both ends to a pivot lever, so that the air squeezing element (as in the prior art) is pivotable up and down. Also the air squeeze element 25 can be designed differently; instead of a brush is the use a single or multi-part roller is possible: different designs are also available Patent application 19908496 applicable.

    Gleichgültig welche Bauformen für das Luftabquetschelement und für die Andrückeinrichtung angewendet werden, wird gemäß der Erfindung an der Sekundär-Transporteinrichtung 15 eine (in der Zeichnung insgesamt mit 27 bezeichnete) Hubeinrichtung vorgesehen, die das Luftabquetschelement 25 und dessen Andrückeinrichtung 26 trägt. Beim dargestellten Ausführungsbeispiel gehört zu der Hubeinrichtung ein Querträger 28, der sich quer durch die Wickelmaschine von dem einen zum anderen Sekundär-Transportschlitten 15 erstreckt. Jeder Sekundär-Transporschlitten 15 hat eine vorzugsweise vertikale Führung 29, entlang welcher der Querträger 28 zusammen mit dem Luftabquetschelement 25 verfahrbar ist. Zum Verfahren des Querträgers 28 entlang der Führungsbahn 29 dient ein nur symbolisch dargestellter Antrieb 31. No matter what types of construction for the air squeeze element and for the pressure device are used, according to the invention, on the secondary transport device 15 a lifting device (designated in the drawing as a whole with 27) is provided which the air squeeze element 25 and its pressing device 26 carries. In the illustrated Embodiment belongs to the lifting device, a cross member 28, which extends across the winding machine extends from one to the other secondary transport carriage 15. Each secondary transport carriage 15 has a preferably vertical guide 29 along which the cross member 28 can be moved together with the air squeeze element 25. To move the cross member 28 along the guideway 29 is used only symbolically Drive 31 shown.

    Die Hubeinrichtung 27 dient zu dem Zweck, das Luftabquetscelement 25 und dessen Andrückeinrichtung 26 in einen der momentanen Schichtdicke der Wickelrolle entsprechenden Abstand von der Wickelrollen-Drehachse zu verfahren; siehe als Beispiel die Figuren 5 und 6. Gemäß Figur 5 wird ein Tambourwechsel vorbereitet, obwohl die Wickelrolle 11b eine (verglichen mit Figur 1) geringe Schichtdicke S1 aufweist. Gemäß Figur 5 ist der Pneumatikschlauch 26 noch drucklos und der Querträger 28 befindet sich noch in einer unteren Position.The lifting device 27 serves the purpose of the Luftququetscelement 25 and its pressing device 26 into one corresponding to the current layer thickness of the winding roll Distance from the winding roll axis of rotation; see for example Figures 5 and 6. According to FIG. 5, a reel change is prepared, although the winding roll 11b is one (compared to Figure 1) has a small layer thickness S1. According to Figure 5 is the pneumatic hose 26 still depressurized and the cross member 28 is still in a lower one Position.

    Zur Durchführung des Tambourwechsels wird der Querträger 28 mit dem Luftabquetschelement 25 entsprechend der vorhandenen Schichtdicke S1 hochgefahren; danach wird das Luftabquetschelement 25 durch Zuführen von Druck in den Pneumatikschlauch 26 an die Wickelrolle 11b angelegt. Nun kann die Sekundär-Transporteinrichtung 15 die Wickelrolle 11b zusammen mit dem angelegten Luftabquetschelement 25 in die Tambourwechsel-Position transportieren; siehe Figur 6.To carry out the reel change, the cross member 28 with the air squeezing element 25 ramped up according to the existing layer thickness S1; after that it will Air squeeze element 25 by applying pressure in the pneumatic hose 26 to the Winding roll 11b created. Now the secondary transport device 15 can the winding roll 11b together with the applied air squeezing element 25 into the reel change position transport; see Figure 6.

    Claims (9)

    Vorrichtung zum Aufwickeln einer Materialbahn (9), insbesondere Papier- oder Kartonbahn auf einen Wickelkern (z.B. Tambour 12), wobei eine Wickelrolle (11) gebildet wird, mit den folgenden Merkmalen: a) eine Tragtrommel (10), über welche die ankommende Materialbahn (9) läuft, bildet mit der Wickelrolle (11) einen Wickelspalt; b) eine Sekundär-Transporteinrichtung (15) dient zum Verfahren des Wickelkernes (12) entlang einer vorzugsweise horizontalen Fahrbahn (13); c) die Sekundär-Transporteinrichtung (15) trägt ein Luftabquetschelement (25), das bei Erreichen einer gewünschten Schichtdicke (S) mittels einer Andrückeinrichtung (26) an die Wickelrolle (11) andrückbar ist; d) die Sekundär-Transporteinrichtung (15) ist dazu geeignet, um den Tambour (12) mit der darauf gebildeten Wickelrolle (11) zusammen mit dem Luftabquetschelement von der Tragtrommel (10) hinweg in eine Tambourwechsel-Position (Fig. 2, 3; 6) zu verfahren, wonach mittels einer Primär-Transporteinrichtung (23) ein neuer, noch leerer Tambour (22) in eine Wickel-Startposition (Fig. 3) verfahrbar ist; e) dadurch gekennzeichnet, daß an der Sekundär-Transporteinrichtung (15) eine Hubeinrichtung (27) vorgesehen ist, die das Luftabquetschelement (25) und dessen Andrückeinrichtung (26) trägt und die dazu geeignet ist, das Luftabquetchelement (25) und dessen Andrückeinrichtung (26) in einen der momentanen Schichtdicke (S) entsprechenden Abstand von der Wickelrollen-Drehachse zu verfahren. Device for winding up a material web (9), in particular paper or cardboard web on a winding core (eg reel 12), a winding roll (11) being formed, having the following features: a) a carrier drum (10), over which the incoming material web (9) runs, forms a winding nip with the winding roller (11); b) a secondary transport device (15) is used to move the winding core (12) along a preferably horizontal track (13); c) the secondary transport device (15) carries an air squeeze element (25) which can be pressed against the winding roll (11) by means of a pressing device (26) when a desired layer thickness (S) is reached; d) the secondary transport device (15) is suitable for moving the drum (12) with the winding roll (11) formed thereon together with the air squeezing element from the carrying drum (10) into a drum changing position (FIGS. 2, 3; 6) to move, according to which a new, still empty reel (22) can be moved into a winding start position (FIG. 3) by means of a primary transport device (23); e) characterized in that a lifting device (27) is provided on the secondary transport device (15), which carries the air squeezing element (25) and its pressing device (26) and which is suitable for the air squeezing element (25) and its pressing device ( 26) to move at a distance from the winding axis of rotation corresponding to the current layer thickness (S). Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Sekundär-Transporteinrichtung (15) eine vorzugsweise im wesentlichen vertikal verlaufende Führungsbahn (29) aufweist, entlang der die Hubeinrichtung (27) verfahrbar ist.Device according to claim 1, characterized in that the secondary transport device (15) preferably a substantially vertical one Guide path (29) along which the lifting device (27) can be moved. Vorrichtung nach Anspruch 1 oder 2, gekennzeichnet durch die folgenden Merkmale: a) die Sekundär-Transporteinrichtung (15) umfaßt im Bereich der beiden Materialbahn-Ränder je einen Sekundär-Transportschlitten mit je einer Führungsbahn (29) für die das Luftabquetschelement tragende Hubeinrichtung (27): b) die Hubeinrichtung (27) umfaßt einen Querträger (28), der sich vom führerseitigen Sekundär-Transportschlitten zum triebseitigen Sekundär-Transportschlitten erstreckt. Device according to claim 1 or 2, characterized by the following features: a) in the area of the two material web edges, the secondary transport device (15) each has a secondary transport carriage, each with a guide track (29) for the lifting device (27) carrying the air squeeze element: b) the lifting device (27) comprises a cross member (28) which extends from the driver-side secondary transport carriage to the drive-side secondary transport carriage. Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, daß an dem Querträger (28) ein Antrieb (31) für das vertikale Verfahren der Hubeinrichtung (27) vorgesehen ist.Apparatus according to claim 3, characterized in that on the cross member (28) a drive (31) is provided for the vertical movement of the lifting device (27). Vorrichtung nach einem der Ansprüche 1-4, dadurch gekennzeichnet, daß das Luftabquetschelement als eine Walzenanordnung ausgebildet ist, entweder mit einem durchgehenden Walzenkörper oder mit einer Vielzahl von Walzenkörper-Segmenten;Device according to one of claims 1-4, characterized in that the air squeezing element is designed as a roller arrangement, either with a continuous roll body or with a plurality of roll body segments; Vorrichtung nach einem der Ansprüche 1-4, dadurch gekennzeichnet, daß das Luftabquetschelement als ein Bürstenkörper ausgebildet ist.Device according to one of claims 1-4, characterized in that the air squeezing element is designed as a brush body. Vorrichtung nach einem der Ansprüche 1-4, dadurch gekennzeichnet, daß das Luftabquetschelement einen Grundkörper mit einem reibungsarmen Belag aufweist. Device according to one of claims 1-4, characterized in that the air squeezing element has a base body with a low-friction covering. Vorrichtung nach einem der Ansprüche 1-7, dadurch gekennzeichnet, daß die Andrückeinrichtung für das Luftabquetschelement wenigstens zwei an der Hubeinrichtung schwenkbar gelagerte Schwenkhebel aufweist.Device according to one of claims 1-7, characterized in that the Pressure device for the air squeezing element at least two on the lifting device has pivotally mounted pivot lever. Vorrichtung nach einem der Ansprüche 3-7, dadurch gekennzeichnet, daß die Andrückeinrichtung (26) einen Pneumatikschlauch aufweist, der auf dem Querträger (28) abgestützt ist und das Luftabquetschelement (25) trägt.Device according to one of claims 3-7, characterized in that the Pressing device (26) has a pneumatic hose which is on the cross member (28) is supported and carries the air squeezing element (25).
    EP00106537A 1999-05-26 2000-03-27 Device for winding a web Expired - Lifetime EP1055624B1 (en)

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    DE19923930A DE19923930A1 (en) 1999-05-26 1999-05-26 Device for winding a web of material
    DE19923930 1999-05-26

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    FI117171B (en) * 2004-04-07 2006-07-14 Metso Paper Inc Rolling control method and apparatus
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    US6390408B1 (en) 2002-05-21
    ATE269263T1 (en) 2004-07-15
    EP1055624A3 (en) 2002-02-06
    EP1055624B1 (en) 2004-06-16
    DE19923930A1 (en) 2000-11-30
    DE50006796D1 (en) 2004-07-22

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