EP1138620A2 - Winding machine with bearing rollers for winding paper or carton material webs - Google Patents

Winding machine with bearing rollers for winding paper or carton material webs Download PDF

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Publication number
EP1138620A2
EP1138620A2 EP00127516A EP00127516A EP1138620A2 EP 1138620 A2 EP1138620 A2 EP 1138620A2 EP 00127516 A EP00127516 A EP 00127516A EP 00127516 A EP00127516 A EP 00127516A EP 1138620 A2 EP1138620 A2 EP 1138620A2
Authority
EP
European Patent Office
Prior art keywords
winding
roller
carrier
rollers
inlet
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
EP00127516A
Other languages
German (de)
French (fr)
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EP1138620B1 (en
EP1138620A3 (en
Inventor
Pieter Veenstra
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
Jagenberg Papiertechnik 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.)
Filing date
Publication date
Application filed by Jagenberg Papiertechnik GmbH, Voith Paper Patent GmbH filed Critical Jagenberg Papiertechnik GmbH
Publication of EP1138620A2 publication Critical patent/EP1138620A2/en
Publication of EP1138620A3 publication Critical patent/EP1138620A3/en
Application granted granted Critical
Publication of EP1138620B1 publication Critical patent/EP1138620B1/en
Anticipated expiration legal-status Critical
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
    • 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
    • B65H18/145—Reel-to-reel type web winding and unwinding mechanisms
    • 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
    • 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
    • B65H2301/41487—Winding slitting trimming edge

Definitions

  • the invention relates to a support roller winding machine for winding paper or Cardboard webs for winding rolls with a slitter for dividing the Paper or cardboard web in individual webs and two support rollers on which the Winding rolls lie on during winding, the single webs over the winding rolls the feed roller on the inlet side.
  • the invention has for its object to provide a winding machine that enables the winding hardness of the winding rolls to be more precisely determined with little design effort set predetermined values.
  • This object is achieved according to the invention in that at a distance from the inlet-side support roller a train interruption device is arranged, the contains driven roller, and that the outlet-side support roller with a rotary drive is connected and the inlet-side support roller is freely rotatable.
  • the influence of the stretch in the nip between the inlet-side support roller and the winding rollers can be used depending on the Determine roll weight and when setting the desired winding hardness consider.
  • the decisive tensile stress for the winding hardness of the winding rolls when winding is defined depending on the stretching behavior of the web Differential speed between the driven outlet roller and the driven roller of the train interruption device set.
  • the support roller winding machine has only one support roller with a rotary drive that is able to pull the required tension produce. Furthermore, the tension between the train interruption device and unwinding regardless of the requirements when winding onto it Desired range can be set.
  • the carrier roll winding machine is used to produce winding rolls 1 from a Slitting paper or cardboard web divided into individual webs 2.
  • the paper or Cardboard web 2 is drawn off from a supply roll 3, the width of which is 10 m and more can be and which is suspended in a rolling device.
  • the unwinding device contains a braking device 4, preferably a brake generator, the restraining force is adjustable. From the unwinding device, the web 2 is guided over a guide roller 5 Carrier roll winding machine supplied, which is described in more detail below.
  • the web 2 and the supply roll 3 are either drawn off from above (with a continuous line Line drawn) or from below (drawn with a dashed line).
  • the support roller winding machine has two support rollers 6, 7, between which one Roll bed is formed in which the winding rollers 1 during winding on the Support rollers 6, 7 rest.
  • the two support rollers 6, 7 have a diameter of 300 millimeters to 1500 millimeters. In the axial direction they extend over the total working width, i.e. the maximum width of the paper or cardboard web 1. your axial length can therefore be 10 m and more.
  • the diameter of the two Carrier rollers 6, 7 can be different or the same, with the apex lines in one Height or at different heights.
  • the inlet-side support roller 6 has a smaller diameter than the outlet-side Carrier roller 7, and the inlet-side carrier roller 6 is arranged so that its The apex line runs above the apex line of the support roller 7.
  • This arrangement carries the outlet-side support roller 7 with a larger diameter with the Winding roll diameter growing proportion of roll weights.
  • Completely wound winding rolls 1 simplified over the outlet-side support rollers 7 remove the roller bed.
  • Both support rollers 6, 7 have a steel jacket, which is limited by one deformable running layer can be coated.
  • the deformable overlay is either elastically deformable, for example from a full elastomer such as rubber built up, or it consists of a volume compressible material, for example made of a cellular elastomer like foamed polyurethane. Whether none, only one or both support rollers 6, 7 have a deformable running layer depends on the paper or cardboard web 2 to be wound and the desired winding quality.
  • the inlet-side support roller 6, via which the Lanes 2 are fed to the winding rolls 1, is freely rotatable, and the outlet-side support roller 7 is connected to a rotary drive.
  • the powered outlet-side support roller 7 acts as a peripheral drive for the winding rolls 1. Your Rotation speed can be varied to adjust the tension in the outer layers to be able to adjust the winding rolls 1.
  • Train interruption device In the web running direction at a distance in front of the inlet-side support roller 6, there is one Train interruption device arranged.
  • the train interruption device contains a driven roller 8, over which the web 2 is guided without slippage.
  • the roller 8 is also connected to a rotary drive, the rotational speed of which varies can be set to a predetermined differential speed to the support roller 7 to be able to.
  • the slip-free system of the web 2 on the outer surface of the roller 8 is guaranteed by a sufficiently large wrap angle. If great forces need to be transferred, the roller 8 can be designed as a vacuum roller in which the web 2 is additionally sucked in.
  • a pinch roller can be used, which is freely supported and is movable against the roller 8 to form a nip through which the web 2 to be led.
  • Another way to interrupt the train between the Unwinding and the winding stations consists of two driven rollers directly to be arranged one behind the other, over which the web 2 is guided in an S-shape.
  • the slitter 9 includes a number of Pair of circular knives, each of which makes a longitudinal cut. Is the Longitudinal cutting device 9 between the driven interruption roller 8 and the inlet-side support roller 6 in an ascending web section arranged, the lower knife 10 is arranged on the outside — on the right in FIG. 1. This allows the device for vacuuming the separated edge strips in free To arrange space above the lower knife 10. Alternatively, the Longitudinal cutting device 9 also in the web running direction in front of the interruption roller 8 to be ordered; especially if there is a tensile stress during slitting should be set, which is significantly larger than that desired when winding Tension.
  • An arrangement of the longitudinal cutting device 9 with a short distance in front of the support roller 6 on the other hand has the advantage that none for the cut single webs Spreading device is necessary, from which the individual webs are kept separate.
  • the spreader 11 for example a roller with adjustable curvature, can then arrange themselves directly in front of the interruption roller 8, as in FIG. 1 is shown.
  • a pressure roller system on the frame of the winding machine arranged, which contains a free-running mounted or driven pressure roller 12.
  • a free-running mounted or driven pressure roller 12 To Start of winding when the weight of the winding rolls 1 on the support rollers 6, 7 is not yet sufficient for the desired winding hardness, can be done from above pressing roller 12, the weight of the winding roller 1 on the support rollers 6, 7th increase.
  • the pressure roller 12 is in a known manner at the beginning of the winding on an in Roll bed located set of new winding tubes 13 lowered, as shown in Fig. 1 is. In this position, she supports the winding up of the beginning of the web to the new one Winding sleeves 13.
  • a lowering device 14 is located behind the outlet-side support roller 7 - on the left in FIG. 1 arranged, from which the wound winding rolls 1 are taken over and into one Unloading position can be lowered.
  • a movable grille 15 secures during the area behind the winding machine.
  • a fixed protective device 16 is arranged on the side, which covers the area of the Longitudinal cutting device 9 leaves free, so that this over a platform 17 above the Interruption roller 8 is accessible for maintenance work.
  • the individual webs 2 are fed to the Winding rolls 1 from the outside via the feed roller 6 on the inlet side Paths 2 through the gap between the two support rollers 6, 7 possible, the inlet-side support roller 6 is partially wrapped in the webs 2. The direction of rotation the winding roll 1 then changes.
  • the inlet-side support roller 6 is mounted free-running and therefore does not apply a torque that tensions the web tension during winding influenced.
  • the tension in the web during winding is determined exclusively by Torques of the outlet-side support roller 7 and the driven roller 8 of Determined web train separator, the rotary drives with a corresponding Control are connected. This has the advantage that the tensile stress when Winding can adjust very precisely.
  • the tensile stress wrapped in the winding rolls 1 is used to achieve the desired one Winding hardness curve preferably set with the following drive concept:
  • the drive of the roller 7 serves as a master drive, the rotational speed of which is predetermined becomes.
  • the rotary drive of the interruption roller 8 is controlled depending on this that there is a certain speed ratio to the roller 7 to the wrapped Adjust tension.
  • the brake generator 4 is controlled so that when unwinding the supply roll 3 has the desired web tension.
  • This drive concept is particularly advantageous if the web 2 is fed from above via the support roller 6, as shown in Fig. 1. With this web guide, those are for the wrapped Tension required speed ratios of the rollers 7, 8 regardless of the Web thickness 2.
  • the brake generator 4 it is also possible for the brake generator 4 to be unrolled as a master drive use and depending on it first the drive of the rollers 8, then the drive to control the support roller 7. This control is more difficult because it requires that Circumferential speed of the supply roll 3 depending on the changing To regulate the diameter of the supply roll 3 exactly.
  • winding rolls 1 with a very large diameter of, for example, more than one meter the support weight of the winding rolls 1 can the support rollers 6, 7 in a known manner by building up an excess pressure below the Winding rolls 1 can be reduced.
  • EP 0 496 836-B is then described by the winding rollers 1 and the two support rollers 6, 7th limited space and sealed to a compressed air supply, for example via a Compressed air box, connected to an overpressure below the winding rolls 1 too produce.

Landscapes

  • Winding Of Webs (AREA)
  • Replacement Of Web Rolls (AREA)
  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
  • Advancing Webs (AREA)

Abstract

The web of paper or carton is fed through a longitudinal cutter where it is sub-divided into two individual webs. The web passes over two supporting rollers (6,7). Before reaching the first roller (6) the web passes through a tension interruptor unit which has a powered roller (8). The output supporting roller (7) turns under power. The input roller (6) moves freely and is not powered.

Description

Die Erfindung betrifft eine Tragwalzen-Wickelmaschine zum Aufwickeln von Papier- oder Kartonbahnen zu Wickelrollen mit einer Längsschneideeinrichtung zum Aufteilen der Papier- oder Kartonbahn in Einzelbahnen und zwei Tragwalzen, auf denen die Wickelrollen beim Aufwickeln aufliegen, wobei die Einzelbahnen den Wickelrollen über die einlaufseitige Tragwalze zugeführt werden.The invention relates to a support roller winding machine for winding paper or Cardboard webs for winding rolls with a slitter for dividing the Paper or cardboard web in individual webs and two support rollers on which the Winding rolls lie on during winding, the single webs over the winding rolls the feed roller on the inlet side.

Zur Herstellung von Wickelrollen aus durch Längsschneiden in Einzelbahnen unterteilten Papier- oder Kartonbahnen sind Tragwalzen-Wickelmaschinen bekannt, die zwei Tragwalzen aufweisen, auf denen die Wickelrollen beim Aufwickeln aufliegen und die somit das gesamte Wickelrollengewicht tragen (DE 43 34 029 - A). Die für die Qualität der Wickelrollen entscheidende Wickelhärte (= Flächenpressung zwischen den Lagen einer Wickelrolle) wird maßgeblich von der eingewickelten Zugspannung bestimmt. Zur Erzeugung der eingewickelten Zugspannung werden die beiden Tragwalzen beim Aufwickeln mit einer Drehzahldifferenz angetrieben. Zusätzlich wird die eingewickelte Zugspannung beim Aufwickeln von der Linienlast und den geometrischen Verhältnissen im Nip zwischen einer Wickelrolle und einer Tragwalze beeinflußt, da in jedem Nip eine zusätzliche Dehnung der Bahn erfolgt. Als Linienlast wird die auf die Wickelrollenbreite normierte Anpresskraft der Wickelrollen auf eine Tragwalze (gemessen in N/m) bezeichnet. Da die Dehnung im Nip mit wachsendem Rollengewicht ansteigt, begrenzt ihr Wert den maximalen Enddurchmesser einer fehlerfrei mit der gewünschten Wickelhärte gewickelten Wickelrolle.For the production of winding rolls from slices divided by slitting into individual webs Paper or cardboard webs are known to support roller winding machines, the two Have support rollers on which the winding rollers lie during winding and the thus bear the entire winding roll weight (DE 43 34 029 - A). The one for the quality decisive winding hardness of the winding rolls (= surface pressure between the layers a winding roll) is largely determined by the tension that is wrapped. For The two carrier rollers are used to generate the wrapped tension Winding driven with a speed difference. In addition, the wrapped Tension when winding up the line load and the geometric conditions influenced in the nip between a winding roller and a support roller, because in each nip one additional stretching of the web takes place. As a line load, it is based on the winding roll width standardized pressing force of the winding rolls on a carrier roller (measured in N / m) designated. As the stretch in the nip increases with increasing roll weight, you limit Value the maximum final diameter of a faultless with the desired winding hardness wound winding roll.

Aus der WO 98/23 515 ist eine gattungsgemäße Tragwalzen-Wickelmaschine bekannt, bei der die einlaufseitige Tragwalze angetrieben ist und die auslaufseitige Tragwalze als reine Unterstützungswalze frei drehbar gelagert ist. Das dieser bekannten Tragwalzen-Wickelmaschine zugrunde liegende Konzept besteht darin, die nicht primär für die Erzeugung der gewünschten Wickelhärte notwendigen Elemente zum Halten der Wickelrollen, zur Unterstützung des Rollengewichts etc. so zu gestalten, daß ihr Einfluß auf die Wickelhärte möglichst gering ist. From WO 98/23 515 a generic roller winding machine is known, in which the inlet-side support roller is driven and the outlet-side support roller as pure support roller is freely rotatable. That of this well-known carrier roller winding machine underlying concept is that not primarily for the Generation of the desired winding hardness necessary elements for holding the Wrapping rolls, to support the roll weight etc. so that their influence on the winding hardness is as low as possible.

Der Erfindung liegt die Aufgabe zugrunde, eine Wickelmaschine zu schaffen, die es ermöglicht, mit konstruktiv wenig Aufwand die Wickelhärte der Wickelrollen genauer auf vorbestimmte Werte einzustellen.The invention has for its object to provide a winding machine that enables the winding hardness of the winding rolls to be more precisely determined with little design effort set predetermined values.

Diese Aufgabe wird gemäß der Erfindung dadurch gelöst, daß mit Abstand vor der einlaufseitigen Tragwalze eine Zugunterbrechungseinrichtung angeordnet ist, die eine angetriebene Walze enthält, und daß die auslaufseitige Tragwalze mit einem Drehantrieb verbunden ist und die einlaufseitige Tragwalze frei drehbar gelagert ist.This object is achieved according to the invention in that at a distance from the inlet-side support roller a train interruption device is arranged, the contains driven roller, and that the outlet-side support roller with a rotary drive is connected and the inlet-side support roller is freely rotatable.

Anders als bei den bekannten Tragwalzen-Wickelmaschinen beeinflußt die einlaufseitige Tragwalze die Wickelhärte beim Aufwickeln ausschließlich durch die Dehnung im Nip, nicht durch die Erzeugung einer Zugspannung. Der Einfluß der Dehnung im Nip zwischen der einlaufseitigen Tragwalze und den Wickelrollen läßt sich in Abhängigkeit von dem Rollengewicht bestimmen und beim Einstellen der gewünschten Wickelhärte berücksichtigen. Die für die Wickelhärte der Wickelrollen entscheidende Zugspannung beim Aufwickeln wird in Abhängigkeit vom Dehnungsverhalten der Bahn definiert über die Differenzgeschwindigkeit zwischen der angetriebenen auslaufseitigen Tragwalze und der angetriebenen Walze der Zugunterbrechungseinrichtung eingestellt.In contrast to the known carrier roller winding machines, this affects the inlet side Carrier roller the winding hardness during winding only by the stretch in the nip, not by creating tension. The influence of the stretch in the nip between the inlet-side support roller and the winding rollers can be used depending on the Determine roll weight and when setting the desired winding hardness consider. The decisive tensile stress for the winding hardness of the winding rolls when winding is defined depending on the stretching behavior of the web Differential speed between the driven outlet roller and the driven roller of the train interruption device set.

Als weitere Vorteile treten hinzu, daß die Tragwalzen-Wickelmaschine nur eine Tragwalze mit einem Drehantrieb benötigt, der in der Lage ist, die erforderliche Zugspannung zu erzeugen. Weiterhin ist die Zugspannung zwischen der Zugunterbrechungseinrichtung und der Abrollung unabhängig von den Anforderungen beim Aufwickeln auf die in diesem Bahnbereich gewünschten Werte einstellbar.Another advantage is that the support roller winding machine has only one support roller with a rotary drive that is able to pull the required tension produce. Furthermore, the tension between the train interruption device and unwinding regardless of the requirements when winding onto it Desired range can be set.

Die Unteransprüche enthalten bevorzugte, da besonders vorteilhafte Ausgestaltungen einer erfindungsgemäßen Tragwalzen-Wickelmaschine.The subclaims contain preferred, since particularly advantageous, configurations a support roller winding machine according to the invention.

Die Zeichnung dient zur Erläuterung der Erfindung anhand eines vereinfacht dargestellten Ausführungsbeispiels.

Fig. 1
zeigt schematisch die Seitenansicht der Tragwalzen-Wickelmaschine
The drawing serves to explain the invention with reference to an embodiment shown in simplified form.
Fig. 1
shows schematically the side view of the support roller winding machine

Die Tragwalzen-Wickelmaschine dient zur Herstellung von Wickelrollen 1 aus einer durch Längsschneiden in Einzelbahnen unterteilten Papier- oder Kartonbahn 2. Die Papier- oder Kartonbahn 2 wird von einer Vorratsrolle 3 abgezogen, deren Breite 10 m und mehr betragen kann und die in einer Abrollvorrichtung aufgehängt ist. Die Abrollvorrichtung enthält eine Bremseinrichtung 4, vorzugsweise ein Bremsgenerator, deren Rückhaltekraft einstellbar ist. Von der Abrollvorrichtung wird die Bahn 2 über eine Leitrolle 5 der Tragwalzen-Wickelmaschine zugeführt, die nachfolgend näher beschrieben wird. Der Abzug der Bahn 2 und der Vorratsrolle 3 erfolgt entweder von oben (mit durchgezogener Linie gezeichnet) oder von unten (mit gestrichelter Linie gezeichnet).The carrier roll winding machine is used to produce winding rolls 1 from a Slitting paper or cardboard web divided into individual webs 2. The paper or Cardboard web 2 is drawn off from a supply roll 3, the width of which is 10 m and more can be and which is suspended in a rolling device. The unwinding device contains a braking device 4, preferably a brake generator, the restraining force is adjustable. From the unwinding device, the web 2 is guided over a guide roller 5 Carrier roll winding machine supplied, which is described in more detail below. The The web 2 and the supply roll 3 are either drawn off from above (with a continuous line Line drawn) or from below (drawn with a dashed line).

Die Tragwalzen-Wickelmaschine weist zwei Tragwalzen 6, 7 auf, zwischen denen ein Walzenbett ausgebildet ist, in dem die Wickelrollen 1 während des Aufwickelns auf den Tragwalzen 6, 7 aufliegen. Die beiden Tragwalzen 6, 7 haben einen Durchmesser von 300 Millimeter bis 1500 Millimeter. In axialer Richtung erstrecken sie sich über die gesamte Arbeitsbreite, i.e. die maximale Breite der Papier- oder Kartonbahn 1. Ihre axiale Länge kann daher 10 m und mehr betragen. Der Durchmesser der beiden Tragwalzen 6, 7 können unterschiedlich oder gleich sein, wobei die Scheitellinien in einer Höhe oder in unterschiedlichen Höhen verlaufen. In den Ausführungsbeispiel weist die einlaufseitige Tragwalze 6 einen geringeren Durchmesser als die auslaufseitige Tragwalze 7 auf, und die einlaufseitige Tragwalze 6 ist so angeordnet, daß ihre Scheitellinie oberhalb der Scheitellinie der Tragwalze 7 verläuft. Bei dieser Anordnung trägt die auslaufseitige Tragwalze 7 mit größerem Durchmesser einen mit dem Wickelrollendurchmesser wachsenden Anteil der Rollengewichte. Zusätzlich lassen sich fertig gewickelte Wickelrollen 1 vereinfacht über die auslaufseitigen Tragwalzen 7 aus dem Walzenbett entfernen.The support roller winding machine has two support rollers 6, 7, between which one Roll bed is formed in which the winding rollers 1 during winding on the Support rollers 6, 7 rest. The two support rollers 6, 7 have a diameter of 300 millimeters to 1500 millimeters. In the axial direction they extend over the total working width, i.e. the maximum width of the paper or cardboard web 1. your axial length can therefore be 10 m and more. The diameter of the two Carrier rollers 6, 7 can be different or the same, with the apex lines in one Height or at different heights. In the exemplary embodiment, the inlet-side support roller 6 has a smaller diameter than the outlet-side Carrier roller 7, and the inlet-side carrier roller 6 is arranged so that its The apex line runs above the apex line of the support roller 7. With this arrangement carries the outlet-side support roller 7 with a larger diameter with the Winding roll diameter growing proportion of roll weights. In addition, Completely wound winding rolls 1 simplified over the outlet-side support rollers 7 remove the roller bed.

Beide Tragwalzen 6, 7 haben einen Mantel aus Stahl, der mit einer begrenzt verformbaren Laufschicht beschichtet sein kann. Die verformbare Laufschicht ist entweder elastisch verformbar, beispielsweise aus einem Vollelastomer wie Gummi aufgebaut, oder sie besteht aus einem volumenkompressiblen Material, beispielsweise aus einem zelligen Elastomer wie geschäumtes Polyurethan. Ob keine, nur eine oder beide Tragwalzen 6, 7 eine verformbare Laufschicht aufweisen, hängt von der aufzuwickelnden Papier- oder Kartonbahn 2 und der gewünschten Wickelqualität ab. Both support rollers 6, 7 have a steel jacket, which is limited by one deformable running layer can be coated. The deformable overlay is either elastically deformable, for example from a full elastomer such as rubber built up, or it consists of a volume compressible material, for example made of a cellular elastomer like foamed polyurethane. Whether none, only one or both support rollers 6, 7 have a deformable running layer depends on the paper or cardboard web 2 to be wound and the desired winding quality.

Wesentlich für die Erfindung ist, daß die einlaufseitige Tragwalze 6, über die die Bahnen 2 den Wickelrollen 1 zugeführt werden, frei drehbar gelagert ist, und die auslaufseitige Tragwalze 7 mit einem Drehantrieb verbunden ist. Die angetriebene auslaufseitige Tragwalze 7 wirkt als Umfangsantrieb für die Wickelrollen 1. Ihre Drehgeschwindigkeit kann variiert werden, um die Zugspannung in den äußeren Lagen der Wickelrollen 1 einstellen zu können.It is essential for the invention that the inlet-side support roller 6, via which the Lanes 2 are fed to the winding rolls 1, is freely rotatable, and the outlet-side support roller 7 is connected to a rotary drive. The powered outlet-side support roller 7 acts as a peripheral drive for the winding rolls 1. Your Rotation speed can be varied to adjust the tension in the outer layers to be able to adjust the winding rolls 1.

In Bahnlaufrichtung mit Abstand vor der einlaufseitigen Tragwalze 6, ist eine Zugunterbrechungseinrichtung angeordnet. Die Zugunterbrechungseinrichtung enthält eine angetriebene Walze 8, über die die Bahn 2 ohne Schlupf geführt wird. Die Walze 8 ist ebenfalls mit einem Drehantrieb verbunden, dessen Drehgeschwindigkeit variiert werden kann, um eine vorgegebene Differenzgeschwindigkeit zur Tragwalze 7 einstellen zu können. Die schlupffreie Anlage der Bahn 2 auf der Mantelfläche der Walze 8 wird durch einen ausreichend großen Umschlingungswinkel gewährleistet. Falls große Kräfte übertragen werden müssen, kann die Walze 8 als Vakuumwalze ausgebildet sein, bei der die Bahn 2 zusätzlich angesaugt wird. Alternativ kann zur Sicherung einer schlupffreien Anlage der Bahn 2 eine Klemmwalze eingesetzt werden, die freilaufend gelagert ist und gegen die Walze 8 bewegbar ist, um einen Klemmspalt zu bilden, durch den die Bahn 2 geführt wird. Eine weitere Möglichkeit zur Unterbrechung des Bahnzugs zwischen der Abrollung und den Wickelstellen besteht darin, zwei angetriebene Walzen unmittelbar hintereinander anzuordnen, über die die Bahn 2 S-förmig geführt wird.In the web running direction at a distance in front of the inlet-side support roller 6, there is one Train interruption device arranged. The train interruption device contains a driven roller 8, over which the web 2 is guided without slippage. The roller 8 is also connected to a rotary drive, the rotational speed of which varies can be set to a predetermined differential speed to the support roller 7 to be able to. The slip-free system of the web 2 on the outer surface of the roller 8 is guaranteed by a sufficiently large wrap angle. If great forces need to be transferred, the roller 8 can be designed as a vacuum roller in which the web 2 is additionally sucked in. Alternatively, you can secure a non-slip Plant of the web 2, a pinch roller can be used, which is freely supported and is movable against the roller 8 to form a nip through which the web 2 to be led. Another way to interrupt the train between the Unwinding and the winding stations consists of two driven rollers directly to be arranged one behind the other, over which the web 2 is guided in an S-shape.

Zum Aufteilen der von der Vorratsrolle 3 abgezogenen Bahn 2 in mehrere Einzelbahnen dient eine Längsschneideeinrichtung 9, die vor der einlaufseitigen Tragwalze 6 angeordnet ist, so daß der Tragwalze 6 einzelne, nebeneinander laufende Bahnen 2 zugeführt werden. Die Längsschneideeinrichtung 9 enthält eine Reihe von Kreismesserpaaren, die jeweils einen Längsschnitt durchführen. Ist die Längsschneideeinrichtung 9 zwischen der angetriebenen Zugunterbrechungswalze 8 und der einlaufseitigen Tragwalze 6 in einem ansteigend geführten Bahnabschnitt angeordnet, so wird das Untermesser 10 außen -in Figur 1 rechts- angeordnet. Dies ermöglicht es, die Einrichtung zum Absaugen der abgetrennten Randstreifen in freien Raum oberhalb des Untermessers 10 anzuordnen. Alternativ kann die Längsschneideeinrichtung 9 auch in Bahnlaufrichtung vor der Zugunterbrechungswalze 8 angeordnet werden; insbesondere, wenn beim Längsschneiden eine Zugspannung eingestellt werden soll, die erheblich größer ist als die beim Aufwickeln gewünschte Zugspannung. For dividing the web 2 drawn off from the supply roll 3 into several individual webs serves a longitudinal cutting device 9, which in front of the inlet-side support roller 6th is arranged so that the support roller 6 individual webs 2 running side by side be fed. The slitter 9 includes a number of Pair of circular knives, each of which makes a longitudinal cut. Is the Longitudinal cutting device 9 between the driven interruption roller 8 and the inlet-side support roller 6 in an ascending web section arranged, the lower knife 10 is arranged on the outside — on the right in FIG. 1. This allows the device for vacuuming the separated edge strips in free To arrange space above the lower knife 10. Alternatively, the Longitudinal cutting device 9 also in the web running direction in front of the interruption roller 8 to be ordered; especially if there is a tensile stress during slitting should be set, which is significantly larger than that desired when winding Tension.

Eine Anordnung der Längsschneideeinrichtung 9 mit kurzen Abstand vor der Tragwalze 6 hat dagegen den Vorteil, daß für die geschnittenen Einzelbahnen keine Breitstreckeinrichtung notwendig ist, von der die Einzelbahnen getrennt gehalten werden. Die Breitstreckeinrichtung 11, beispielsweise eine Walze mit einstellbarer Krümmung, läßt sich dann unmittelbar vor der Zugunterbrechungswalze 8 anordnen, wie in Fig. 1 dargestellt ist.An arrangement of the longitudinal cutting device 9 with a short distance in front of the support roller 6 on the other hand has the advantage that none for the cut single webs Spreading device is necessary, from which the individual webs are kept separate. The spreader 11, for example a roller with adjustable curvature, can then arrange themselves directly in front of the interruption roller 8, as in FIG. 1 is shown.

Oberhalb des Walzenbetts ist dem Gestell der Wickelmaschine ein Druckrollensystem angeordnet, das eine freilaufend gelagerte oder angetriebene Druckrolle 12 enthält. Zu Beginn der Aufwicklung, wenn daß Auflagegewicht der Wickelrollen 1 auf den Tragwalzen 6, 7 für die gewünschte Wickelhärte noch nicht ausreicht, läßt sich mittels der von oben drückenden Druckrolle 12 das Auflagegewicht der Wickelrolle 1 auf den Tragwalzen 6, 7 erhöhen. Die Druckrolle 12 wird auf bekannte Weise zu Beginn der Wicklung auf einen in Walzenbett befindlichen Satz neuer Wickelhülsen 13 abgesenkt, wie in Fig. 1 dargestellt ist. Sie unterstützt in dieser Position das Anwickeln der Bahnanfänge an die neuen Wickelhülsen 13.Above the roller bed, there is a pressure roller system on the frame of the winding machine arranged, which contains a free-running mounted or driven pressure roller 12. To Start of winding when the weight of the winding rolls 1 on the support rollers 6, 7 is not yet sufficient for the desired winding hardness, can be done from above pressing roller 12, the weight of the winding roller 1 on the support rollers 6, 7th increase. The pressure roller 12 is in a known manner at the beginning of the winding on an in Roll bed located set of new winding tubes 13 lowered, as shown in Fig. 1 is. In this position, she supports the winding up of the beginning of the web to the new one Winding sleeves 13.

Hinter der auslaufseitigen Tragwalze 7 -in Fig. 1 links- ist eine Absenkvorrichtung 14 angeordnet, von der die fertig gewickelten Wickelrollen 1 übernommen und bis in eine Entladeposition abgesenkt werden. Ein wegbewegbares Schutzgitter 15 sichert während des Aufwickelns den Bereich hinter der Wickelmaschine ab. Auf der gegenüberliegenden Seite ist eine feststehende Schutzvorrichtung 16 angeordnet, die den Bereich der Längsschneideeinrichtung 9 freiläßt, so daß dieser über ein Podest 17 oberhalb der Zugunterbrechungswalze 8 für Wartungsarbeiten zugänglich ist.A lowering device 14 is located behind the outlet-side support roller 7 - on the left in FIG. 1 arranged, from which the wound winding rolls 1 are taken over and into one Unloading position can be lowered. A movable grille 15 secures during the area behind the winding machine. On the opposite A fixed protective device 16 is arranged on the side, which covers the area of the Longitudinal cutting device 9 leaves free, so that this over a platform 17 above the Interruption roller 8 is accessible for maintenance work.

In vorliegenden Ausführungsbeispiel erfolgt die Zufuhr der Einzelbahnen 2 zu den Wickelrollen 1 von außen über die einlaufseitige Tragwalze 6. Ebenso ist die Zufuhr der Bahnen 2 durch den Spalt zwischen den beiden Tragwalzen 6, 7 möglich, wobei die einlaufseitige Tragwalze 6 teilweise von den Bahnen 2 umschlungen ist. Die Drehrichtung der Wickelrolle 1 ändert sich dann.In the present exemplary embodiment, the individual webs 2 are fed to the Winding rolls 1 from the outside via the feed roller 6 on the inlet side Paths 2 through the gap between the two support rollers 6, 7 possible, the inlet-side support roller 6 is partially wrapped in the webs 2. The direction of rotation the winding roll 1 then changes.

Wesentlich für die Erfindung ist, daß die einlaufseitige Tragwalze 6 freilaufend gelagert ist und somit kein Drehmonent aufbringt, das die Bahnzugspannung beim Aufwickeln beeinflußt. Die Bahnzugspannung beim Aufwickeln wird ausschließlich von den Drehmonenten der auslaufseitigen Tragwalze 7 und der angetriebenen Walze 8 der Bahnzugtrenneinrichtung bestimmt, deren Drehantriebe mit einer entsprechenden Steuerung verbunden sind. Dies hat den Vorteil, daß man die Zugspannung beim Aufwickeln sehr genau einstellen kann.It is essential for the invention that the inlet-side support roller 6 is mounted free-running and therefore does not apply a torque that tensions the web tension during winding influenced. The tension in the web during winding is determined exclusively by Torques of the outlet-side support roller 7 and the driven roller 8 of Determined web train separator, the rotary drives with a corresponding Control are connected. This has the advantage that the tensile stress when Winding can adjust very precisely.

Die in die Wickelrollen 1 eingewickelte Zugspannung wird zur Erzielung des gewünschten Wickelhärteverlaufs bevorzugt mit folgendem Antriebskonzept eingestellt:The tensile stress wrapped in the winding rolls 1 is used to achieve the desired one Winding hardness curve preferably set with the following drive concept:

Der Antrieb der Walze 7 dient als Leitantrieb, dessen Drehgeschwindigkeit vorgegeben wird. Der Drehantrieb der Zugunterbrechungswalze 8 wird davon abhängig so gesteuert, daß ein bestimmtes Drehzahlverhältnis zur Walze 7 vorliegt, um die eingewickelte Zugspannung einzustellen. Der Bremsgenerator 4 wird so gesteuert, daß beim Abwickeln der Vorratsrolle 3 die gewünschte Bahnzugspannung vorliegt. Dieses Antriebskonzept ist besonders vorteilhaft, wenn die Bahn 2 von oben über die Tragwalze 6 zugeführt wird, wie in Fig. 1 dargestellt ist. Bei dieser Bahnführung sind die für die eingewickelte Zugspannung erforderlichen Drehzahlverhältnisse der Walzen 7, 8 unabhängig von der Dicke der Bahn 2.The drive of the roller 7 serves as a master drive, the rotational speed of which is predetermined becomes. The rotary drive of the interruption roller 8 is controlled depending on this that there is a certain speed ratio to the roller 7 to the wrapped Adjust tension. The brake generator 4 is controlled so that when unwinding the supply roll 3 has the desired web tension. This drive concept is particularly advantageous if the web 2 is fed from above via the support roller 6, as shown in Fig. 1. With this web guide, those are for the wrapped Tension required speed ratios of the rollers 7, 8 regardless of the Web thickness 2.

Alternativ ist es auch möglich, den Bremsgenerator 4 der Abrollung als Leitantrieb zu verwenden und davon abhängig zunächst den Antrieb der Walzen 8, danach den Antrieb der Tragwalze 7 zu steuern. Diese Steuerung ist schwieriger, da es erforderlich ist, die Umfangsgeschwindigkeit der Vorratsrolle 3 in Abhängigkeit von dem sich ändernden Durchmesser der Vorratsrolle 3 exakt zu regeln.Alternatively, it is also possible for the brake generator 4 to be unrolled as a master drive use and depending on it first the drive of the rollers 8, then the drive to control the support roller 7. This control is more difficult because it requires that Circumferential speed of the supply roll 3 depending on the changing To regulate the diameter of the supply roll 3 exactly.

Falls Wickelrollen 1 mit einem sehr großen Durchmesser von beispielsweise mehr als einem Meter hergestellt werden sollen, kann das Auflagegewicht der Wickelrollen 1 auf den Tragwalzen 6, 7 auf bekannte Weise durch Aufbau eines Überdrucks unterhalb der Wickelrollen 1 vermindert werden. Wie beispielsweise in der EP 0 496 836-B beschrieben, wird dann der von den Wickelrollen 1 und den beiden Tragwalzen 6, 7 begrenzte Raum abgedichtet und an eine Druckluftzufuhr, beispielsweise über einen Druckluftkasten, angeschlossen, um einen Überdruck unterhalb der Wickelrollen 1 zu erzeugen.If winding rolls 1 with a very large diameter of, for example, more than one meter, the support weight of the winding rolls 1 can the support rollers 6, 7 in a known manner by building up an excess pressure below the Winding rolls 1 can be reduced. As for example in EP 0 496 836-B is then described by the winding rollers 1 and the two support rollers 6, 7th limited space and sealed to a compressed air supply, for example via a Compressed air box, connected to an overpressure below the winding rolls 1 too produce.

Claims (7)

Tragwalzen-Wickelmaschine zum Aufwickeln von Papier- oder Kartonbahnen (2) zu Wickelrollen (1) mit einer Längsschneideeinrichtung (9) zum Aufteilen der Papier- oder Kartonbahnen (2) in Einzelbahnen und zwei Tragwalzen (6, 7), auf denen die Wickelrollen (1) beim Aufwickeln aufliegen, wobei die Einzelbahnen den Wickelrollen (1) über die einlaufseitige Tragwalze (6) zugeführt werden, dadurch gekennzeichnet, daß mit Abstand vor der einlaufseitigen Tragwalze (6) eine Zugunterbrechungseinrichtung angeordnet ist, die eine angetriebene Walze (8) enthält und das die auslaufseitige Tragwalze (7) mit einem Drehantrieb verbunden ist und die einlaufseitige Tragwalze (6) frei drehbar gelagert ist.Carrier roller winding machine for winding paper or cardboard webs (2) into winding rolls (1) with a slitter (9) for dividing the paper or cardboard webs (2) into individual webs and two carrier rollers (6, 7) on which the winding rollers ( 1) rest during winding, the individual webs being fed to the winding rolls (1) via the inlet-side support roller (6), characterized in that a train interruption device is arranged at a distance in front of the inlet-side support roller (6) and contains a driven roller (8) and that the outlet-side support roller (7) is connected to a rotary drive and the inlet-side support roller (6) is freely rotatable. Tragwalzen-Wickelmaschine nach Anspruch 1, dadurch gekennzeichnet, daß eine oder beide Tragwalzen (6, 7) einen verformbaren Belag aufweisen.Carrier roller winding machine according to claim 1, characterized in that one or both carrier rollers (6, 7) have a deformable covering. Tragwalzen-Wickelmaschine nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Längsschneideeinrichtung (9) zwischen der Zugunterbrechungseinrichtung und der einlaufseitigen Tragwalze (6) angeordnet ist.Carrier roll winding machine according to claim 1 or 2, characterized in that the longitudinal cutting device (9) is arranged between the draw interruption device and the feed roll (6) on the inlet side. Tragwalzen-Wickelmaschine nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Einzelbahnen den Wickelrollen (1) von außen über die einlaufseitige Tragwalze (6) zugeführt werden.Carrier roller winding machine according to one of Claims 1 to 3, characterized in that the individual webs are fed to the winding rollers (1) from the outside via the carrier roller (6) on the inlet side. Tragwalzen-Wickelmaschine nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die beiden Tragwalzen (6, 7) einen unterschiedlichen Durchmesser aufweisen, insbesondere der Durchmesser der einlaufseitigen Tragwalze (6) geringer ist als der der auslaufseitigen Tragwalze (7). Carrier roller winding machine according to one of claims 1 to 4, characterized in that the two carrier rollers (6, 7) have a different diameter, in particular the diameter of the carrier roller (6) on the inlet side is smaller than that of the carrier roller (7) on the outlet side. Tragwalzen-Wickelmaschine nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß die Scheitellinie der einlaufseitigen Tragwalze (6) oberhalb der Scheitellinie der auslaufseitigen Tragwalze (7) verläuft.Carrier roller winding machine according to one of claims 1 to 5, characterized in that the apex line of the inlet-side carrier roller (6) runs above the apex line of the outlet-side carrier roller (7). Tragwalzen-Wickelmaschine nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß der von den Wickelrollen (1) und den beiden Tragwalzen (6, 7) begrenzte Raum abgedichtet und an eine Druckluftzufuhr angeschlossen ist, um einen Überdruck unterhalb der Wickelrollen (1) zu erzeugen.Carrier roller winding machine according to one of claims 1 to 6, characterized in that the space delimited by the winding rollers (1) and the two carrier rollers (6, 7) is sealed and connected to a compressed air supply in order to prevent overpressure below the winding rollers (1) to create.
EP00127516A 2000-03-09 2000-12-15 Winding machine with bearing rollers for winding paper or carton material webs Expired - Lifetime EP1138620B1 (en)

Applications Claiming Priority (2)

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DE10011432 2000-03-09
DE10011432A DE10011432B4 (en) 2000-03-09 2000-03-09 Carrier roll winding machine for winding paper or cardboard webs

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EP1138620A3 EP1138620A3 (en) 2003-02-12
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AT (1) ATE273906T1 (en)
DE (2) DE10011432B4 (en)
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EP2610405A1 (en) * 2011-12-28 2013-07-03 Metso Paper Inc. Method in a finishing device of a fiber web machine
EP4306466A1 (en) * 2022-07-13 2024-01-17 SML Maschinengesellschaft m.b.H. Method for wrapping a sheet of material and wrapping device

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CN109534047B (en) * 2018-11-08 2020-07-24 常州信息职业技术学院 Automatic change winder

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EP2610405A1 (en) * 2011-12-28 2013-07-03 Metso Paper Inc. Method in a finishing device of a fiber web machine
EP4306466A1 (en) * 2022-07-13 2024-01-17 SML Maschinengesellschaft m.b.H. Method for wrapping a sheet of material and wrapping device

Also Published As

Publication number Publication date
ES2226693T3 (en) 2005-04-01
EP1138620B1 (en) 2004-08-18
DE10011432B4 (en) 2005-04-28
EP1138620A3 (en) 2003-02-12
ATE273906T1 (en) 2004-09-15
DE10011432A1 (en) 2001-09-20
DE50007471D1 (en) 2004-09-23

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