EP0829439A1 - Method and device for winding a longitudinally cut webmaterial - Google Patents

Method and device for winding a longitudinally cut webmaterial Download PDF

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Publication number
EP0829439A1
EP0829439A1 EP97115595A EP97115595A EP0829439A1 EP 0829439 A1 EP0829439 A1 EP 0829439A1 EP 97115595 A EP97115595 A EP 97115595A EP 97115595 A EP97115595 A EP 97115595A EP 0829439 A1 EP0829439 A1 EP 0829439A1
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EP
European Patent Office
Prior art keywords
winding
roller
roll
loading
loading roller
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
EP97115595A
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German (de)
French (fr)
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EP0829439B1 (en
Inventor
Friedrich Kuhn
Jens Krüger
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Voith Sulzer Papiermaschinen GmbH
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Voith Sulzer Papiermaschinen GmbH
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Publication of EP0829439A1 publication Critical patent/EP0829439A1/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
    • B65H18/00—Winding webs
    • B65H18/08—Web-winding mechanisms
    • B65H18/26—Mechanisms for controlling contact pressure on winding-web package, e.g. for regulating the quantity of air between web layers
    • 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
    • B65H18/20—Mechanisms in which power is applied to web roll, e.g. to effect continuous advancement of web the web roll being supported on two parallel rollers at least one of which is driven
    • 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
    • B65H19/2284—Simultaneous winding at several stations, e.g. slitter-rewinders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/41—Winding, unwinding
    • B65H2301/414—Winding
    • B65H2301/4148—Winding slitting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/41—Winding, unwinding
    • B65H2301/414—Winding
    • B65H2301/4148—Winding slitting
    • B65H2301/41486—Winding slitting winding on two or more winding shafts simultaneously
    • B65H2301/414866—Winding slitting winding on two or more winding shafts simultaneously on bed rollers
    • 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
    • B65H2404/40—Shafts, cylinders, drums, spindles
    • B65H2404/43—Rider roll construction
    • B65H2404/434—Driven rider roll arrangement

Definitions

  • the invention relates to a method for winding up a slit material web, e.g. Paper web, the winding rolls resulting from the partial webs being supported by means of two winding beds formed from winding support rollers.
  • the invention also relates to an apparatus for performing this method; this device is preferably designed as a three-roll slitter. Theoretically, the two winding beds mentioned could also be formed using four winding support rollers.
  • each of the support rollers can be driven individually.
  • each of the carrier rollers has an individually controllable drive.
  • torques of different sizes can be introduced into a winding roller (resting on two of the support rollers) via the two support rollers.
  • This is an attempt to achieve a specific winding hardness in the winding roll.
  • this does not always succeed to the desired extent, especially if at least one of the partial webs (and thus the winding roll resulting therefrom) has a relatively large width. It may then be necessary to generate a higher winding hardness than was previously possible, at least in the initial phase of the winding process.
  • the invention has for its object to provide a solution to the problem described above.
  • At least one of the winding rolls located in the middle of the total web width is selected for this is that in many cases the quality of the material web, in particular paper web) is higher or at least more uniform in the middle region of its total web width than in the Marginal areas. For this reason, those winding rolls are formed which have to meet higher demands during further processing (e.g. in printing presses) and which generally have a relatively large partial web width, preferably in the central region of the total web width.
  • the invention makes it possible to introduce a higher torque than before into the winding roll in question.
  • the invention allows the torque to be introduced not only to be divided between the two support rollers, but also to transmit a certain torque component to the winding roller via the at least one loading roller.
  • circumferential forces are introduced into the gradually increasing winding roll not only at two but at three points on the circumference. The result is winding rolls of a relatively large width, which have a significantly higher winding hardness than previously, particularly in their core area.
  • Figure 1 shows schematically a winding machine partly in side view, partly in cross section.
  • FIG. 2 schematically shows a view from above of the winding machine in the initial phase of a winding process.
  • the winding machine shown in Figures 1 and 2 has a machine frame with stands 12 which are connected by cross members 13 ( Figure 1).
  • the cross members 13 are in turn connected in the middle of the machine by a longitudinal member 14.
  • Three support rollers 15-17 arranged side by side extend parallel to the longitudinal member 14.
  • Each of the support rollers is provided with a drive M1-M3.
  • the two outer support rollers 16 and 17 extend at the same height and have the same, but smaller diameter than the middle support roller 15. Two adjacent support rollers each form a winding bed.
  • the longitudinally cut material web 20 with total width B (FIG. 2), for example paper web, runs from below over the central one Carrier roller 15 in the machine. At least one of the cut partial webs is rolled up on the support rollers 15 and 16 to form a roll 21, while at least one second partial web is rolled up over the rolls 17 and 15 to form a roll 22.
  • FIG. 2 shows the following, among other things: For example, five winding rolls 21, 21.1, 22, 22.1 and 22.2 are formed. Due to the alternating partial webs entering the two changing beds, e.g. there is an axial distance between the two winding rollers 21 and 21.1 which are created in one winding bed, which corresponds to the width of the winding roller 22 which is formed in the other winding bed.
  • Winding blocks 29, 30 are mounted on the longitudinal beam 14, which protrude downward into the respective winding bed and serve to guide the winding rollers 21, 22 on both sides.
  • Each of the winding stands 29, 30 is equipped with a sleeve guide 34, 35 which can be displaced vertically by means of lifting device 48.
  • Each sleeve guide carries an axially displaceable clamping head which engages in the center (formed by a winding sleeve) of the winding roll in question.
  • Fig. 1 shows the sleeve guides 34, 35 in an upper position which they assume when the winding rollers 21 ', 22' have reached their maximum diameter.
  • ejection devices 42, 44 are provided above the middle support roller, each with a pivot drive 52. Furthermore, each of the outer support rollers 16, 17 is assigned a roller lowering device 53, 54, with which the ejected finished winding rolls are deposited from the machine.
  • the middle support roller 15 has a perforated roller jacket (preferably according to DE-PS 3843246) and a suction connection.
  • underpressure 15 can occasionally be generated inside the carrier roller 15, in particular in order to keep the new web beginnings on the carrier roller 15 during the roll change after severing the partial webs.
  • each load roller is rotatably mounted in the free end of a pair of levers 3, which is articulated on a horizontally movable carriage 4.
  • a lifting device 5 is used to swing the lever pair 3 up and down and to control the loading force.
  • the slide 4 is supported on a longitudinal beam 6 which can be displaced vertically by means of the lifting device 7.
  • FIG. 2 shows (as a simplified example) that a single loading roller 2.1, 2.2 is assigned to each of the outer, relatively narrow winding rollers 22.1 and 22.2. In contrast, two (or even more) load rollers 1, 2, 1.1 rest on the middle, relatively wide winding rollers 21, 22, 21.1.
  • each of the loading rollers is provided with a drive M (only shown symbolically).
  • a control unit 8 is provided in a control center 9 for each of the drives M and for each of the support roller drives M1 to M3. This means that each of the drives can be controlled individually. However, as indicated at 10, selected control units 8 can be coupled to one another. In this way, the drives of the load rollers 2 assigned to a specific winding roll (e.g. 22) can be controlled together.
  • the loading rollers 2.1 and 2.2 of the outer winding rollers 22.1 and 22.2 can be designed without a drive.

Landscapes

  • Replacement Of Web Rolls (AREA)
  • Winding Of Webs (AREA)
  • Unwinding Webs (AREA)

Abstract

Separate rolls (21,22) are formed from a main strip (20) of overall width (B). They rest on coiling beds formed by supporting drums (15-17) which are individually driven. At least during initial coiling the coils are pressed by drums (1,2) against the supporting ones. A coil is selected midway across the main strip and the pressure drum is driven independently of the supporting ones. The torque exerted by the pressure drum on the coil forms an adjustable proportion of the total torque exerted on the roll. There can be several coils midway across the main strip, each with an individually-driven pressure drum, or such a drum can be provided for each of the coils. Torque from the pressure roller can typically be reduced as the coil height increases.

Description

Die Erfindung betrifft ein Verfahren zum Aufwickeln einer längsgeschnittenen Materialbahn, z.B. Papierbahn, wobei die aus den Teilbahnen entstehenden Wickelrollen mittels zweier aus Wickeltragwalzen gebildeten Wickelbetten unterstützt werden. Die Erfindung betrifft außerdem eine Vorrichtung zum Durchführen dieses Verfahrens; diese Vorrichtung ist vorzugsweise als eine Drei-Walzen-Rollenschneidmaschine ausgebildet. Theoretisch könnte man die zwei genannten Wickelbetten auch mit Hilfe von vier Wickeltragwalzen bilden.The invention relates to a method for winding up a slit material web, e.g. Paper web, the winding rolls resulting from the partial webs being supported by means of two winding beds formed from winding support rollers. The invention also relates to an apparatus for performing this method; this device is preferably designed as a three-roll slitter. Theoretically, the two winding beds mentioned could also be formed using four winding support rollers.

Zum Stand der Technik wird beispielsweise auf die DE-PS 32 43 994 (Akte PA 03971) und auf die DE-PS 35 41 906 (Akte PA 04271K) verwiesen, worin jeweils eine Drei-Walzen-Rollenschneidmaschine beschrieben ist. Die drei Wickeltragwalzen bilden zwei Wickelbetten, so daß die nach dem Längsschneiden entstandenen Teilbahnen teils im einen und teils im anderen Wickelbett zu Wickelrollen aufgewickelt werden können. Jede einzelne, auf einer Wickelhülse entstehende Wickelrolle wird mit Hilfe von zwei Wickelböcken geführt. Jeder Wickelbock hat eine vertikal verfahrbare Hülsenführung, worin ein Spannkopf drehbar gelagert ist. An den beiden Stirnseiten der entstehenden Wickelrolle greifen die beiden Spannköpfe in die Wickelhülse ein. Diese Konstruktion erlaubt es, falls notwendig dem Eigengewicht der entstehenden Wickelrolle entgegenzuwirken. Davon macht man Gebrauch hauptsächlich wenn der Wickelrollen-Durchmesser schon relativ groß geworden ist.With regard to the prior art, reference is made, for example, to DE-PS 32 43 994 (file PA 03971) and to DE-PS 35 41 906 (file PA 04271K), each of which describes a three-roll slitter. The three winding support rollers form two winding beds, so that the partial webs created after the longitudinal cutting can be wound into winding rolls partly in one and partly in the other winding bed. Each individual winding roll created on a winding tube is guided with the help of two winding frames. Each winding block has a vertically movable sleeve guide, in which a clamping head is rotatably mounted. The two clamping heads engage in the winding tube on the two end faces of the winding roll being created. This construction makes it possible, if necessary, to counteract the dead weight of the winding roll that is created. This is mainly used when the winding roll diameter has already become relatively large.

Dagegen ist es im Anfangsbereich des Wickelvorganges, also wenn der Wickelrollen-Durchmesser noch sehr klein ist, notwendig, die Wickelrolle mittels einer Belastungswalze an das betreffende Tragwalzen-Paar anzudrücken, so daß die Wickelrolle mit Sicherheit im Wickelbett verbleibt.On the other hand, in the beginning of the winding process, that is, when the winding roll diameter is still very small, it is necessary to press the winding roll onto the pair of supporting rolls in question by means of a loading roll, so that the winding roll will surely remain in the winding bed.

Aus der DE'994 ist es auch bekannt, daß jede der Tragwalzen individuell antreibbar ist. Mit anderen Worten: Jede der Tragwalzen hat einen individuell steuerbaren Antrieb. Dadurch kann man beispielsweise in eine (auf zwei der Tragwalzen ruhende) Wickelrolle über die Zwei Tragwalzen Drehmomente unterschiedlicher Größe einleiten. Hierdurch versucht man, in der Wickelrolle eine bestimmte Wickelhärte zu erzielen. Dies gelingt jedoch nicht immer in dem gewünschten Maße, insbesondere wenn wenigstens eine der Teilbahnen (und somit die daraus entstehende Wickelrolle) eine relativ große Breite aufweist. Dann kann es erforderlich werden, zumindest in der Anfangsphase des Wickelvorganges eine höhere Wickelhärte zu erzeugen als dies bisher möglich war.From DE'994 it is also known that each of the support rollers can be driven individually. In other words: each of the carrier rollers has an individually controllable drive. As a result, torques of different sizes can be introduced into a winding roller (resting on two of the support rollers) via the two support rollers. This is an attempt to achieve a specific winding hardness in the winding roll. However, this does not always succeed to the desired extent, especially if at least one of the partial webs (and thus the winding roll resulting therefrom) has a relatively large width. It may then be necessary to generate a higher winding hardness than was previously possible, at least in the initial phase of the winding process.

Der Erfindung liegt die Aufgabe zugrunde eine Lösung für das zuvor beschriebene Problem anzugeben.The invention has for its object to provide a solution to the problem described above.

Diese Aufgabe wird gemäß den voneinander unabhängigen Hauptansprüchen im Prinzip wie folgt gelöst: Ausgehend von dem im Oberbegriff des Anspruches 1 angegebenen Verfahren wird im mittleren Bereich der Gesamt-Bahnbreite wenigstens eine der Wickelrollen dazu auserwählt, um mittels wenigstens einer individuell antreibbaren Belastungswalze eine gegenüber bisher erhöhte Wickelhärte zu erzeugen.This task is solved according to the mutually independent main claims in principle as follows: starting from the method specified in the preamble of claim 1, at least one of the winding rolls is selected in the middle region of the total web width in order to increase one compared to previously by means of at least one individually drivable loading roll To produce winding hardness.

Der Grund, warum man hierzu wenigstens eine der im mittleren Bereich der Gesamt-Bahnbreite befindlichen Wickelrollen auswählt, besteht darin, daß in vielen Fällen die Qualität der Materialbahn, insbesondere Papierbahn) im mittleren Bereich ihrer Gesamt-Bahnbreite höher oder zumindest gleichmäßiger ist als in den Randbereichen. Deshalb bildet man diejenigen Wickelrollen, welche bei der Weiterverarbeitung (z.B. in Druckmaschinen) höheren Ansprüchen genügen müssen und die in der Regel eine relativ große Teilbahn-Breite aufweisen, bevorzugt im mittleren Bereich der Gesamt-Bahnbreite.The reason why at least one of the winding rolls located in the middle of the total web width is selected for this is that in many cases the quality of the material web, in particular paper web) is higher or at least more uniform in the middle region of its total web width than in the Marginal areas. For this reason, those winding rolls are formed which have to meet higher demands during further processing (e.g. in printing presses) and which generally have a relatively large partial web width, preferably in the central region of the total web width.

Durch die Erfindung wird es möglich, in die betreffende Wickelrolle ein höheres Drehmoment einzuleiten als bisher. Außerdem erlaubt es die Erfindung, das einzuleitende Drehmoment nicht nur auf die zwei Tragwalzen aufzuteilen, sondern einen gewissen Drehmoment-Anteil über die wenigstens eine Belastunsgwalze auf die Wickelrolle zu übertragen. Mit anderen Worten: Es werden gemäß der Erfindung nicht nur an zwei sondern an drei Stellen des Umfanges Umfangskräfte in die allmählich größer werdende Wickelrolle eingeleitet. Im Ergebnis erzielt man Wickelrollen von relativ großer Breite, die insbesondere in ihrem Kernbereich eine erheblich höhere Wickelhärte aufweisen als bisher.The invention makes it possible to introduce a higher torque than before into the winding roll in question. In addition, the invention allows the torque to be introduced not only to be divided between the two support rollers, but also to transmit a certain torque component to the winding roller via the at least one loading roller. In other words: According to the invention, circumferential forces are introduced into the gradually increasing winding roll not only at two but at three points on the circumference. The result is winding rolls of a relatively large width, which have a significantly higher winding hardness than previously, particularly in their core area.

Weitere Ausgestaltungen des erfindungsgemäßen Verfahrens sind in den Unteransprüchen 2-5 angegeben. Die zur Durchführung des erfindungsgemäßen Verfahrens notwendigen Vorrichtungs-Merkmale sind im unabhängigen Anspruch 6 angegeben, weitere Ausgestaltungen hierzu in den Unteransprüchen 7-9.Further refinements of the method according to the invention are specified in subclaims 2-5. The device features necessary for carrying out the method according to the invention are specified in independent claim 6, further developments in this regard in subclaims 7-9.

Anhand der beigefügten Zeichnung wird nachfolgend ein Ausführungsbeispiel der Erfindung beschrieben.An exemplary embodiment of the invention is described below with reference to the accompanying drawing.

Die Figur 1 zeigt schematisch eine Wickelmaschine teils in Seitenansicht, teils im Querschnitt.Figure 1 shows schematically a winding machine partly in side view, partly in cross section.

Die Figur 2 zeigt schematisch eine Ansicht von oben auf die Wickelmaschine in der Anfangsphase eines Wickelvorganges.FIG. 2 schematically shows a view from above of the winding machine in the initial phase of a winding process.

Die in den Figuren 1 und 2 dargestellte Wickelmaschine hat ein Maschinengestell mit Ständern 12, die durch Traversen 13 verbunden sind (Figur 1). Die Traversen 13 sind ihrerseits in der Maschinenmitte durch einen Längsträger 14 verbunden. Drei nebeneinander angeordnete Tragwalzen 15-17 erstrecken sich parallel zum Längsträger 14. Jede der Tragwalzen ist mit einem Antrieb M1-M3 versehen. Die beiden äußeren Tragwalzen 16 und 17 erstrecken sich auf gleicher Höhe und haben gleiche, jedoch kleinere Durchmesser als die mittlere Tragwalze 15. Jeweils zwei benachbarte Tragwalzen bilden ein Wickelbett.The winding machine shown in Figures 1 and 2 has a machine frame with stands 12 which are connected by cross members 13 (Figure 1). The cross members 13 are in turn connected in the middle of the machine by a longitudinal member 14. Three support rollers 15-17 arranged side by side extend parallel to the longitudinal member 14. Each of the support rollers is provided with a drive M1-M3. The two outer support rollers 16 and 17 extend at the same height and have the same, but smaller diameter than the middle support roller 15. Two adjacent support rollers each form a winding bed.

Die längs geschnittene Materialbahn 20 mit Gesamt-Breite B (Fig. 2), z.B. Papierbahn, läuft von unten über die zentrale Tragwalze 15 in die Maschine ein. Wenigstens eine der geschnittenen Teilbahnen wird auf den Tragwalzen 15 und 16 zu einem Wickel 21 aufgerollt, während wenigstens eine zweite Teilbahn über den Walzen 17 und 15 zu einem Wickel 22 aufgerollt wird.The longitudinally cut material web 20 with total width B (FIG. 2), for example paper web, runs from below over the central one Carrier roller 15 in the machine. At least one of the cut partial webs is rolled up on the support rollers 15 and 16 to form a roll 21, while at least one second partial web is rolled up over the rolls 17 and 15 to form a roll 22.

Die Figur 2 zeigt unter anderem folgendes: Es werden beispielsweise fünf Wickelrollen 21, 21.1, 22, 22.1 und 22.2 gebildet. Aufgrund der abwechselnd in die beiden Wickelbetten einlaufenden Teilbahnen besteht z.B. zwischen den beiden Wickelrollen 21 und 21.1, die in dem einen Wickelbett entstehen, ein axialer Abstand, welcher der Breite der im anderen Wickelbett entstehenden Wickelrolle 22 entspricht.FIG. 2 shows the following, among other things: For example, five winding rolls 21, 21.1, 22, 22.1 and 22.2 are formed. Due to the alternating partial webs entering the two changing beds, e.g. there is an axial distance between the two winding rollers 21 and 21.1 which are created in one winding bed, which corresponds to the width of the winding roller 22 which is formed in the other winding bed.

Am Längsträger 14 sind längsverschiebbare Wickelböcke 29, 30 gelagert, welche nach unten in das jeweilige Wickelbett ragen und zur beidseitigen Führung der Wickelrollen 21, 22 dienen. Jeder der Wickelböcke 29, 30 ist mit einer mittels Hubeinrichtung 48 vertikal verschiebbaren Hülsenführung 34, 35 ausgestattet. Jede Hülsenführung trägt einen axial verschiebbaren Spannkopf, der in das (von einer Wickelhülse gebildete) Zentrum der betreffenden Wickelrolle eingreift. Die Fig. 1 zeigt die Hülsenführungen 34, 35 in einer oberen Position, die sie einnehmen, wenn die Wickelrollen 21', 22' ihren maximalen Durchmesser erreicht haben.Longitudinally displaceable winding blocks 29, 30 are mounted on the longitudinal beam 14, which protrude downward into the respective winding bed and serve to guide the winding rollers 21, 22 on both sides. Each of the winding stands 29, 30 is equipped with a sleeve guide 34, 35 which can be displaced vertically by means of lifting device 48. Each sleeve guide carries an axially displaceable clamping head which engages in the center (formed by a winding sleeve) of the winding roll in question. Fig. 1 shows the sleeve guides 34, 35 in an upper position which they assume when the winding rollers 21 ', 22' have reached their maximum diameter.

Zum Ausstoßen der fertigen Wickelrollen 21', 22' aus dem entsprechenden Wickelbett sind über der mittleren Tragwalze 15 Ausstoßeinrichtungen 42, 44 vorgesehen, jeweils mit einem Schwenkantrieb 52. Ferner ist jeder der äußeren Tragwalzen 16, 17 eine Rollen-Absenkeinrichtung 53, 54 zugeordnet, mit der die ausgestoßenen fertigen Wickelrollen aus der Maschine abgelegt werden.To eject the finished winding rolls 21 ', 22' from the corresponding winding bed 15 ejection devices 42, 44 are provided above the middle support roller, each with a pivot drive 52. Furthermore, each of the outer support rollers 16, 17 is assigned a roller lowering device 53, 54, with which the ejected finished winding rolls are deposited from the machine.

Die mittlere Tragwalze 15 hat einen (vorzugsweise gemäß DE-PS 3843246) perforierten Walzenmantel und einem Sauganschluß. Hierdurch kann zeitweise im Inneren der Tragwalze 15 Unterdruck erzeugt werden, insbesondere um während des Rollenwechsels nach dem Durchtrennen der Teil-Bahnen die neuen Bahnanfänge an der Tragwalze 15 zu halten.The middle support roller 15 has a perforated roller jacket (preferably according to DE-PS 3843246) and a suction connection. As a result, underpressure 15 can occasionally be generated inside the carrier roller 15, in particular in order to keep the new web beginnings on the carrier roller 15 during the roll change after severing the partial webs.

Solange die Wickelrollen 21, 22 noch relativ klein sind, werden sie mittels je einer Belastungswalze 1, 2 an die Tragwalzen angedrückt. In der linken Hälfte der Fig. 2 erkennt man wie die Belastungswalzen 1, 2 gelagert und geführt sind. Jede Belastungswalze ist drehbar gelagert im freien Ende eines Hebelpaares 3, das an einem horizontal verfahrbaren Schlitten 4 angelenkt ist. Zum Auf- oder Abschwenken des Hebelpaares 3 und zum Steuern der Belastungskraft dient eine Hubeinrichtung 5. Der Schlitten 4 ist an einem vertikal mittels Hubeinrichtung 7 verschiebbaren Längsträger 6 abgestützt. Wenn die Wickelrollen einen bestimmten Durchmesser (z.B. 0,5m) erreicht haben, werden die Belastungswalzen 1, 2 in der Regel nach oben entfernt.As long as the winding rollers 21, 22 are still relatively small, they are pressed onto the supporting rollers by means of a loading roller 1, 2 each. In the left half of Fig. 2 you can see how the loading rollers 1, 2 are stored and guided. Each load roller is rotatably mounted in the free end of a pair of levers 3, which is articulated on a horizontally movable carriage 4. A lifting device 5 is used to swing the lever pair 3 up and down and to control the loading force. The slide 4 is supported on a longitudinal beam 6 which can be displaced vertically by means of the lifting device 7. When the winding rollers have reached a certain diameter (e.g. 0.5m), the loading rollers 1, 2 are usually removed upwards.

Die Figur 2 zeigt (als vereinfachtes Beispiel), daß jeder der äußeren, relativ schmalen Wickelrollen 22.1 und 22.2 eine einzige Belastungswalze 2.1, 2.2 zugeordnet ist. Dagegen ruhen auf den mittleren, relativ breiten Wickelrollen 21, 22, 21.1 je zwei (oder noch mehr) Belastungswalzen 1, 2, 1.1.FIG. 2 shows (as a simplified example) that a single loading roller 2.1, 2.2 is assigned to each of the outer, relatively narrow winding rollers 22.1 and 22.2. In contrast, two (or even more) load rollers 1, 2, 1.1 rest on the middle, relatively wide winding rollers 21, 22, 21.1.

Jede der Belastungswalzen ist in dem gezeigten Beispiel mit einem (nur symbolisch dargestellten) Antrieb M versehen. In einer Steuerzentrale 9 ist für jeden der Antriebe M und für jeden der Tragwalzen-Antriebe M1 bis M3 eine Steuereinheit 8 vorgesehen. Somit ist jeder der Antriebe individuell steuerbar. Man kann jedoch, wie bei 10 angedeutet, ausgewählte Steuereinheiten 8 aneinanderkoppeln. Hierdurch können die Antriebe der einer bestimmten Wickelrolle (z.B. 22) zugeordneten Belastungswalzen 2 gemeinsam gesteuert werden.In the example shown, each of the loading rollers is provided with a drive M (only shown symbolically). A control unit 8 is provided in a control center 9 for each of the drives M and for each of the support roller drives M1 to M3. This means that each of the drives can be controlled individually. However, as indicated at 10, selected control units 8 can be coupled to one another. In this way, the drives of the load rollers 2 assigned to a specific winding roll (e.g. 22) can be controlled together.

Abweichend von Fig. 2 können die Belastungswalzen 2.1 und 2.2 der äußeren Wickelrollen 22.1 und 22.2 ohne Antrieb ausgeführt werden.2, the loading rollers 2.1 and 2.2 of the outer winding rollers 22.1 and 22.2 can be designed without a drive.

Claims (9)

Verfahren zum Aufwickeln von längsgeschnittenen Teilbahnen einer Materialbahn (20), vorzugsweise Papierbahn, die eine "Gesamt-Bahnbreite (B)" aufweist, bei welchem Verfahren aus jeder Teilbahn eine Wickelrolle (21, 22) gebildet wird und die Wickelrollen auf zwei aus Wickel-Tragwalzen (15, 16, 17) gebildeten Wickelbetten aufliegen, wobei jede der Tragwalzen individuell antreibbar ist, ferner bei welchem Verfahren man - zumindest im Anfangsbereich eines Wickelvorganges - wenigstens eine der sich bildenden Wickelrollen mittels wenigstens einer Belastungswalze (1, 2) an das betreffende Tragwalzen-Paar andrückt, dadurch gekennzeichnet, daß man als die genannte (wenigstens eine mit einer Belastungswalze versehene) Wickelrolle (21, 22) eine im mittleren Bereich der Gesamt-Bahnbreite (B) befindliche Wickelrolle auswählt und daß man die Belastungswalze (1, 2) unabhängig von den Tragwalzen (15-17) antreibt, so daß die Belastungswalze einen beliebig einstellbaren Anteil des insgesamt auf die Wickelrolle zu übertragenden Drehmoments in die Wickelrolle einleitet.Method for winding longitudinally cut partial webs of a material web (20), preferably paper web, which has an "overall web width (B)", in which method a winding roll (21, 22) is formed from each partial web and the winding rolls are wound on two Support rollers (15, 16, 17) formed winding beds lie on, each of the support rollers being individually drivable, furthermore by which method - at least in the initial area of a winding process - at least one of the winding rollers which are formed is attached to the relevant one by means of at least one loading roller (1, 2) Carrier roller pair presses, characterized in that a winding roller (21, 22) (at least one provided with a loading roller) is selected from a winding roller located in the central region of the total web width (B) and that the loading roller (1, 2 ) drives independently of the support rollers (15-17), so that the loading roller an arbitrarily adjustable proportion of the total on d he introduces the winding roll torque to be transferred into the winding roll. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß man mehreren im mittleren Bereich der Gesamt-Bahnbreite (B) befindlichen Wickelrollen (21, 22) je wenigstens eine individuell antreibbare Belastungswalze (1, 2) zuordnet.Method according to Claim 1, characterized in that several winding rolls (21, 22) located in the central region of the total web width (B) are each assigned at least one individually drivable loading roller (1, 2). Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß man sämtlichen Wickelrollen je wenigstens eine individuell antreibbare Belastungswalze zuordnet.A method according to claim 1, characterized in that all winding rolls are each assigned at least one individually drivable loading roller. Verfahren nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß man die Höhe des mittels der Belastungswalze in die Wickelrolle einzuleitenden Drehmoments in Abhängigkeit von einer sich ändernden Prozeß-Größe, z.B. mit zunehmendem Wickelrollen-Durchmesser, variiert, z.B. verringert.Method according to one of Claims 1 to 3, characterized in that the amount of the torque to be introduced into the winding roll by means of the loading roll is varied, for example reduced, as a function of a changing process size, for example with increasing winding roll diameter. Verfahren nach Anspruch 4, dadurch gekennzeichnet, daß man die Höhe der auf die Wickelrolle wirkenden Belastungskraft und die Höhe des genannten Drehmoments gemeinsam in Abhängigkeit vom zunehmendem Wickelrollen-Durchmesser (vorzugsweise selbsttätig und kontinuierlich) verringert.A method according to claim 4, characterized in that the amount of the loading force acting on the winding roll and the amount of said torque are reduced jointly depending on the increasing diameter of the winding roll (preferably automatically and continuously). Wickelmaschine zum Durchführen des im Anspruch 1 angegebenen Verfahrens, mit zwei aus Wickel-Tragwalzen (15, 16, 17) gebildeten Wickelbetten zur Aufnahme von Wickelrollen (21, 22), die aus längsgeschnittenen Teilbahnen einer Materialbahn (20) mit einer Gesamt-Bahnbreite (B) entstehen, ferner mit je einem individuell steuerbaren Antrieb (M1-M3) für jede der Tragwalzen sowie mit wenigstens einer Belastungswalze (1, 2), die auf wenigstens eine der Wickelrollen aufsetzbar ist, gekennzeichnet durch die folgenden Merkmale: a) die wenigstens eine Belastungswalze (1, 2) ist einer im mittleren Bereich der Gesamt-Bahnbreite (B) entstehenden Wickelrolle (21, 22) zugeordnet; b) diese wenigstens eine Belastungswalze (1, 2) ist mit einem individuell steuerbaren Antrieb (M) versehen. Winding machine for carrying out the method specified in claim 1, with two winding beds formed from winding support rollers (15, 16, 17) for receiving winding rolls (21, 22) which consist of longitudinally cut partial webs of a material web (20) with a total web width ( B), each with an individually controllable drive (M1-M3) for each of the support rollers and with at least one loading roller (1, 2) which can be placed on at least one of the winding rollers, characterized by the following features: a) the at least one loading roller (1, 2) is assigned to a winding roll (21, 22) which arises in the central region of the total web width (B); b) this at least one loading roller (1, 2) is provided with an individually controllable drive (M). Wickelmaschine nach Anspruch 6, dadurch gekennzeichnet, daß die Belastungswalze (1, 2) an einer Hubeinrichtung (5) gelagert ist.Winding machine according to claim 6, characterized in that the loading roller (1, 2) is mounted on a lifting device (5). Wickelmaschine nach Anspruch 7, dadurch gekennzeichnet, daß die Höhe der auf die Wickelrolle wirkenden Belastungskraft mittels der Hubeinrichtung (5) steuerbar ist.Winding machine according to claim 7, characterized in that the level of the loading force acting on the winding roll can be controlled by means of the lifting device (5). Wickelmaschine nach Anspruch 7 oder 8, dadurch gekennzeichnet, daß die Belastungswalze (1, 2) mittels der Hubeinrichtung (5) von der größer werdenden Wickelrolle (21, 22) entfernbar ist.Winding machine according to claim 7 or 8, characterized in that the loading roller (1, 2) can be removed by means of the lifting device (5) from the winding roller (21, 22) which becomes larger.
EP97115595A 1996-09-11 1997-09-09 Method and device for winding a longitudinally cut webmaterial Expired - Lifetime EP0829439B1 (en)

Applications Claiming Priority (2)

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DE19636894 1996-09-11
DE19636894A DE19636894A1 (en) 1996-09-11 1996-09-11 Method for winding up a longitudinally cut material web and device for carrying out the method

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EP1083139A2 (en) * 1999-08-27 2001-03-14 Voith Paper Patent GmbH Device for winding rolls and method for winding
EP1094021A1 (en) * 1999-10-18 2001-04-25 Giovanni Gambini Device for controlling winding of a log in a re-reeling machine

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DE59707021D1 (en) 2002-05-23
EP0829439B1 (en) 2002-04-17
US6149098A (en) 2000-11-21

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