EP0680911A1 - Device for winding up a continously fed web, especially for paper web - Google Patents

Device for winding up a continously fed web, especially for paper web Download PDF

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Publication number
EP0680911A1
EP0680911A1 EP95105608A EP95105608A EP0680911A1 EP 0680911 A1 EP0680911 A1 EP 0680911A1 EP 95105608 A EP95105608 A EP 95105608A EP 95105608 A EP95105608 A EP 95105608A EP 0680911 A1 EP0680911 A1 EP 0680911A1
Authority
EP
European Patent Office
Prior art keywords
winding
pressure roller
station
web
reel
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
EP95105608A
Other languages
German (de)
French (fr)
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EP0680911B1 (en
Inventor
Dieter Junk
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 Sulzer Finishing GmbH
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Voith Sulzer Finishing GmbH
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Publication of EP0680911A1 publication Critical patent/EP0680911A1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H19/00—Changing the web roll
    • B65H19/22—Changing the web roll in winding mechanisms or in connection with winding operations
    • B65H19/2238—The web roll being driven by a winding mechanism of the nip or tangential drive type
    • B65H19/2253—The web roll being driven by a winding mechanism of the nip or tangential drive type and the roll being displaced during the winding operation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H19/00—Changing the web roll
    • B65H19/22—Changing the web roll in winding mechanisms or in connection with winding operations
    • B65H19/30—Lifting, transporting, or removing the web roll; Inserting core
    • B65H19/305—Inserting core
    • 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
    • B65H2301/30—Orientation, displacement, position of the handled material
    • B65H2301/31—Features of transport path
    • B65H2301/316—Features of transport path of web roll
    • B65H2301/3164—Features of transport path of web roll involving at least two planes containing the roll axis
    • B65H2301/31642—L-shaped
    • 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
    • B65H2301/417—Handling or changing web rolls
    • B65H2301/4171—Handling web roll
    • B65H2301/4173—Handling web roll by central portion, e.g. gripping central portion
    • B65H2301/41734—Handling web roll by central portion, e.g. gripping central portion involving rail
    • 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
    • B65H2301/417—Handling or changing web rolls
    • B65H2301/418—Changing web roll
    • B65H2301/4182—Core or mandrel insertion, e.g. means for loading core or mandrel in winding position
    • B65H2301/41826—Core or mandrel insertion, e.g. means for loading core or mandrel in winding position by gripping or pushing means, mechanical or suction gripper
    • 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

Definitions

  • the invention relates to a device for winding a continuously tapering web, in particular a paper web, onto a reel according to the preamble of claim 1.
  • the invention has for its object to provide a device of the type described above, with which a good winding quality can be achieved even with large and heavy windings.
  • the winding station Since the winding station is arranged in a fixed position, very large and heavy windings can also be produced. Sufficient space is available for the pressure roller with associated mechanics. The web runs freely around the circumference of the roll and without wrapping around a pressure roller. This results in a clear separation of the two setting options, namely the web tension and the contact pressure exerted by the pressure roller. Since the pressure roller is continuously effective from the start of winding to the winding station, the described can be Maintain conditions practically throughout the winding time. This leads to the desired good winding quality.
  • the two guideways for the secondary winding and for the pressure roller are adapted to the path of the path, which results in a particularly simple construction.
  • the ability to couple the drum bearing slide and roller bearing slide according to claim 5 facilitates the tracking of the pressure roller when the secondary winding is displaced.
  • the secondary winding can be placed on a stationary winding station.
  • the development according to claim 7 results in a particularly sensitive regulation of the contact pressure between the pressure roller and the winding, because the distance control for the force transmitter means that the same conditions are present in all operating positions.
  • the auxiliary pressure roller according to claim 8 is only effective at the end of the winding process, where it is much less important to a precise control of web tension and contact pressure than at the beginning of the winding.
  • the arrangement of the separating device according to claim 10 has the advantage that it separates the web between the winding station and the second reel, so that the beginning of the trailing web section is wound over the entire width onto the second reel.
  • this is only possible if the separating device is connected to the bearing for the pressure roller, because otherwise the separating device would hinder the movement of the pressure roller.
  • FIG. 1 to 5 show a device according to the invention in various operating positions, while FIG. 6 shows an enlarged view of the separating device.
  • the illustrated device has a winding station 1 with stationary bearing blocks 2, which have lowerable bearings 3 for a reel 4.
  • a web 5 is wound onto it to form a winding, hereinafter referred to as primary winding 6.
  • a rotary drive 7 for the drum 4 is provided.
  • Rails 8 are connected to the bearing, via which the drum 4 'of a finished primary winding 6' can be removed from the winding station 1 with the aid of drag arms 9.
  • the web 5 is fed to the primary roll 6 via a guide roll 10, for example a spreader roll, and a deflecting roll 11 such that the web section 12 immediately upstream of the primary roll 6 runs vertically and tangentially to the winding circumference. So that this state is maintained even with increasing winding diameter, guide roller 10 and deflection roller 11 are mounted on a support slide 13 which is horizontally displaceable on a base frame 14. For this purpose, a distance control, not shown, is provided, which ensures that the right front edge of the support slide 13 is constantly at a predetermined distance from the circumference of the primary winding 6.
  • the support carriage 13 also carries a pressure roller 15, which forms an inlet gap 16 with the primary winding 6 and can be pressed against the winding circumference with the aid of a short-stroke force generator 17.
  • This contact force control for the contact pressure can be carried out, for example, electro-pneumatically. By choosing the contact pressure and the web tension, an optimal winding can be produced.
  • the pressure roller 15 with the short stroke force generator 17 is arranged on a roller bearing slide 18 which can be displaced along a vertical guide track 19 which is formed on the support slide 13.
  • the roller bearing carriage 18 also carries a separating device 20 with a separating knife 21 and adjacent blowing nozzles 22 below the pressure roller 15.
  • an auxiliary pressure roller 23 also provided with an adjusting device 24, is arranged on the carrying slide 13 below the pressure roller 15.
  • a horizontally movable transfer carriage 26 is arranged on a further underframe 25. It carries a guide track 27 parallel to the guide track 19, on which a drum bearing slide 28 can be displaced vertically.
  • This carriage carries a bearing 29 for a secondary drum 30 and, in the upper position illustrated in FIG. 1, forms a receiving station 31 for this secondary drum.
  • a drive 32 for this secondary drum 30 is arranged in a fixed position on the side of the device opposite the drive 7 and is connected to the secondary drum via a cardan shaft.
  • the spool bearing carriage 28 and the roller bearing carriage 18 have a coupling 33 with which these carriages can be coupled in a positive manner in the receiving station 31 in the vertical direction - but horizontally displaceable, e.g. thanks to hydraulically displaceable bolts.
  • the axes of the second drum 30 and the pressure roller 15 lie in a horizontal plane which is slowly shifted downwards.
  • 1 to 5 show the winding device described in different, successive operating positions.
  • FIG. 1 illustrates normal winding operation shortly before the maximum winding diameter of the primary winding 6 is reached.
  • the second drum 30 is already located in the receiving station 31.
  • the preceding winding 6 has reached the removal position.
  • the winding can also be supported by moistening the second drum 30 and / or an air nozzle-equipped guide shell which can be swung in and out.
  • the second reel 30 and the pressure roller 15 coupled to it can in a precise creep speed up to the level of the winding station 1, from which the primary reel 6 after lowering the bearing 3 has been removed with the aid of the tow arms 9, can be lowered (FIG. 3).
  • one of the lifting drives for the roller bearing slide 18 and the spool bearing slide 28 should be of a precise type, for example in the form of spindle lifting elements, while the lifting drive for the other slide, because it is coupled to the first-mentioned slide, is less precise must be designed, for example, can have a cable cylinder or an air motor.
  • the lifting drive for the spool bearing slide is expediently designed precisely because it makes more sense to let the small pressure roller mass undertake by the larger spool mass than vice versa. Because of the slow lowering movement, the web tension control, which is brought about with the aid of the drive 32, has sufficient time to carry out the adjustment required each time the web running length changes. The optimal winding process is therefore not affected. During this downward movement, the transfer carriage 16 can be held stationary, while the support carriage 13 follows the increasing radius of the secondary winding 6 ′′ depending on a distance control.
  • the drum bearing carriage 28, which is moved to the left with the aid of the transfer carriage 26, can be raised into the receiving station 31 and thereby moved past the second drum 30.
  • the transfer carriage 26 is expediently moved together with the carrying carriage 13 and the drum bearing carriage 28 is moved upwards at a defined position. This ensures that all components are correctly assigned for the next roll change.
  • the drive 32 can also be replaced by a motor that travels with the spool bearing slide 28.
  • the individual work steps can connect to each other fully automatically.
  • a common base frame with offset levels can also be used.
  • the horizontal drives can be designed in the usual way, for example by a hydraulic or electric motor.
  • the pressure roller 15 can be designed as a deflection compensation roller to compensate for deflections and / or to influence the contact pressure curve over the web width, for example in the case of transverse profile errors. It can be used to influence the web tension also have a motor / generator drive.
  • a drive of the pressure roller 15 can also be expedient for maintaining the synchronous speed during the phase detached from the winding.

Landscapes

  • Replacement Of Web Rolls (AREA)
  • Winding Of Webs (AREA)
  • Packaging Of Special Articles (AREA)
  • Basic Packing Technique (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)

Abstract

The continuous feed material is wound onto a roll (6) held in a fixed winding position (3). The sheet feed is to a top mounted roller (11) and vertically down to a pressure roller (15) which guides the feed onto the roll. The core (30) for the next roll is held ready near the top roller. To move the winding to the next core the pressure roller is raised up a vertical guide. The fresh core is then lowered and moved into the fixed winding position. The feed direction is controlled by parallel slide adjustments on the winding frame. This brings the vertical feed tangential to the roll being wound. Full rolls are removed on a rolling support (8) to a transfer position. <IMAGE>

Description

Die Erfindung bezieht sich auf eine Vorrichtung zum Aufwickeln einer kontinuierlich zulaufenden Bahn, insbesondere Papierbahn, auf einen Tambour nach dem Oberbegriff des Anspruchs 1.The invention relates to a device for winding a continuously tapering web, in particular a paper web, onto a reel according to the preamble of claim 1.

Bei einer bekannten Vorrichtung dieser Art (DE 33 32 827 A1) sind an einem Drehkopf zwei um 180° versetzte Lager für je einen Tambour angeordnet. Diese Lager dienen abwechselnd als Wickelstation und Aufnahmestation. Jedem Lager ist eine Andruckwalze zugeordnet. Diese Wickelvorrichtung eignet sich nur für verhältnismäßig kleine Rollen, nicht aber für lange und schwere Rollen, wie sie beispielsweise in der Papiertechnik benötigt werden. Außerdem bereitet es Schwierigkeiten, die beiden Andruckwalzen mit ihrer Andruckmechanik auf dem Drehkopf unterzubringen.In a known device of this type (DE 33 32 827 A1), two bearings, each offset by 180 °, are arranged on a rotary head, each for a drum. These bearings alternately serve as a winding station and receiving station. A pressure roller is assigned to each bearing. This winding device is only suitable for relatively small rolls, but not for long and heavy rolls, such as those required in paper technology. In addition, it is difficult to accommodate the two pressure rollers with their pressure mechanism on the rotary head.

Bei einer weiteren bekannten Vorrichtung (DE 41 04 635 A1), die ebenfalls mit einem Drehkopf arbeitet, wird die Bahn über eine Umlenkwalze zugeführt, die im Bereich der Aufnahmestation als Andruckwalze dient. Eine zweite Andruckwalze ist der Wickelstation zugeordnet. Während der Übergabe des Sekundärwickels von der Aufnahmestation zur Wickelstation ist zunächst die eine Andruckwalze und dann die andere Andruckwalze wirksam. Dies hat zur Folge, daß sich zum einen der Umschlingungswinkel, mit dem die Bahn auf der Umlenkwalze aufliegt, und zum andern die Winkellage, in der die Andruckkraft auf den Wickel wirkt, in erheblichem Maß ändern. Dies führt zu Änderungen im Kontaktdruck zwischen Andruckwalze und Wickel sowie zu Änderungen in der Bahnspannung. Diese Änderungen sind bei den angestrebten Wickelgeschwindigkeiten nicht hinreichend ausregelbar. Hierdurch wird der Wickel vor allem in der Anwickelphase negativ beeinflußt.In a further known device (DE 41 04 635 A1), which also works with a rotary head, the web is fed via a deflection roller, which serves as a pressure roller in the area of the receiving station. A second pressure roller is assigned to the winding station. During the transfer of the secondary roll from the take-up station to the winding station, first one pressure roller and then the other pressure roller are effective. This has the consequence that on the one hand the wrap angle with which the web rests on the deflecting roller and on the other hand the angular position in which the pressing force acts on the reel change to a considerable extent. This leads to changes in the contact pressure between the pressure roller and winding and to changes in the web tension. These changes cannot be sufficiently regulated at the desired winding speeds. As a result, the winding is adversely affected, especially in the winding phase.

Der Erfindung liegt die Aufgabe zugrunde, eine Vorrichtung der eingangs beschriebenen Art anzugeben, mit der eine gute Wickelqualität auch bei großen und schweren Wickeln erzielbar ist.The invention has for its object to provide a device of the type described above, with which a good winding quality can be achieved even with large and heavy windings.

Diese Aufgabe wird durch die Merkmale des Anspruchs 1 gelöst.This object is solved by the features of claim 1.

Da die Wickelstation ortsfest angeordnet ist, können auch sehr große und schwere Wickel erzeugt werden. Für die Andruckwalze mit zugehöriger Mechanik steht ausreichend Platz zur Verfügung. Die Bahn läuft dem Umfang des Wickels frei und ohne Umschlingung einer Andruckwalze zu. Daher ergibt sich eine klare Trennung der beiden Einstellmöglichkeiten, nämlich der Bahnspannung und des von der Andruckwalze ausgeübten Kontaktdrucks. Da die Andruckwalze von Wickelbeginn kontinuierlich bis in die Wickelstation wirksam ist, lassen sich die beschriebenen Verhältnisse praktisch während der gesamten Wickelzeit aufrechterhalten. Dies führt zu der angestrebten guten Wickelqualität.Since the winding station is arranged in a fixed position, very large and heavy windings can also be produced. Sufficient space is available for the pressure roller with associated mechanics. The web runs freely around the circumference of the roll and without wrapping around a pressure roller. This results in a clear separation of the two setting options, namely the web tension and the contact pressure exerted by the pressure roller. Since the pressure roller is continuously effective from the start of winding to the winding station, the described can be Maintain conditions practically throughout the winding time. This leads to the desired good winding quality.

Bei der Nachführung der Andruckwalze gemäß Anspruch 2 ist sichergestellt, daß die Andruckwalze ihre relative Lage zum Tambour während des gesamten Wickelvorgangs beibehält.When tracking the pressure roller according to claim 2 it is ensured that the pressure roller maintains its relative position to the reel during the entire winding process.

Bei der Weiterbildung nach Anspruch 3 sind die beiden Führungsbahnen für den Sekundärwickel und für die Andruckwalze dem Bahnverlauf angepaßt, was eine besonders einfache Konstruktion ergibt.In the development according to claim 3, the two guideways for the secondary winding and for the pressure roller are adapted to the path of the path, which results in a particularly simple construction.

Die Beschränkung der Bewegungen auf einen vertikalen und einen horizontalen Verlauf gemäß Anspruch 4 führt zu einer weiteren Vereinfachung. Überdies ist dafür gesorgt, daß das Gewicht der Andruckwalze keinen Einfluß auf den Kontaktdruck hat.The limitation of the movements to a vertical and a horizontal course according to claim 4 leads to a further simplification. In addition, it is ensured that the weight of the pressure roller has no influence on the contact pressure.

Die Koppelbarkeit von Tambourlager-Schlitten und Walzenlager-Schlitten gemäß Anspruch 5 erleichtert die Nachführung der Andruckwalze bei einer Verlagerung des Sekundärwickels.The ability to couple the drum bearing slide and roller bearing slide according to claim 5 facilitates the tracking of the pressure roller when the secondary winding is displaced.

Mit Hilfe des Übergabe-Schlittens gemäß Anspruch 6 kann man den Sekundärwickel auf einer ortsfesten Wickelstation ablegen.With the help of the transfer carriage according to claim 6, the secondary winding can be placed on a stationary winding station.

Durch die Weiterbildung nach Anspruch 7 ergibt sich eine besonders feinfühlige Regelung des Kontaktdurcks zwischen Andruckwalze und Wickel, weil durch die Abstandsregelung für den Kraftgeber in allen Betriebsstellungen gleiche Verhältnisse vorliegen.The development according to claim 7 results in a particularly sensitive regulation of the contact pressure between the pressure roller and the winding, because the distance control for the force transmitter means that the same conditions are present in all operating positions.

Die Hilfs-Andruckwalze gemäß Anspruch 8 ist nur am Ende des Wickelvorgangs wirksam, wo es viel weniger auf eine genaue Regelung von Bahnspannung und Kontaktdruck ankommt als am Wickelanfang.The auxiliary pressure roller according to claim 8 is only effective at the end of the winding process, where it is much less important to a precise control of web tension and contact pressure than at the beginning of the winding.

Durch Verwendung eines Schnellgangs nach Anspruch 9 kann man die Zeit, in der die Hilfs-Andruckwalze wirksam ist, noch weiter verkürzen.By using an overdrive according to claim 9, the time in which the auxiliary pressure roller is effective can be shortened even further.

Die Anordnung der Trennvorrichtung nach Anspruch 10 hat den Vorteil, daß sie die Bahn zwischen Wickelstation und zweitem Tambour trennt, so daß von vornherein der Anfang des nachlaufenden Bahnabschnitts über die gesamte Breite auf den zweiten Tambour aufgewickelt wird. Dies ist aber nur möglich, wenn die Trennvorrichtung mit dem Lager für die Andruckwalze verbunden ist, weil andernfalls die Trennvorrichtung die Bewegung der Andruckwalze behindern würde.The arrangement of the separating device according to claim 10 has the advantage that it separates the web between the winding station and the second reel, so that the beginning of the trailing web section is wound over the entire width onto the second reel. However, this is only possible if the separating device is connected to the bearing for the pressure roller, because otherwise the separating device would hinder the movement of the pressure roller.

Die Erfindung wird nachstehend anhand eines in der Zeichnung dargestellten bevorzugten Ausführungsbeispiels näher erläutert. Die Fig. 1 bis 5 zeigen eine erfindungsgemäße Vorrichtung in verschiedenen Betriebsstellungen, während Fig. 6 eine vergrößerte Darstellung der Trennvorrichtung darstellt.The invention is explained below with reference to a preferred embodiment shown in the drawing. 1 to 5 show a device according to the invention in various operating positions, while FIG. 6 shows an enlarged view of the separating device.

Die veranschaulichte Vorrichtung besitzt eine Wickelstation 1 mit ortsfesten Lagerböcken 2, die absenkbare Lager 3 für einen Tambour 4 aufweisen. Auf ihn wird eine Bahn 5 zu einem Wickel, nachstehend Primärwickel 6 genannt, gewickelt. Zu diesem Zweck ist ein Drehantrieb 7 für den Tambour 4 vorgesehen. An das Lager schließen Schienen 8 an, über die der Tambour 4' eines fertiggestellten Primärwickels 6' mit Hilfe von Schlepparmen 9 aus der Wickelstation 1 entfernt werden kann.The illustrated device has a winding station 1 with stationary bearing blocks 2, which have lowerable bearings 3 for a reel 4. A web 5 is wound onto it to form a winding, hereinafter referred to as primary winding 6. For this purpose, a rotary drive 7 for the drum 4 is provided. Rails 8 are connected to the bearing, via which the drum 4 'of a finished primary winding 6' can be removed from the winding station 1 with the aid of drag arms 9.

Die Bahn 5 wird dem Primärwickel 6 über eine Leitwalze 10, beispielsweise eine Breitstreckwalze, und eine Umlenkwalze 11 derart zugeführt, daß der dem Primärwickel 6 unmittelbar vorgeschaltete Bahnabschnitt 12 vertikal und tangential zum Wickelumfang verläuft. Damit dieser Zustand auch bei wachsendem Wickeldurchmesser erhalten bleibt, sind Leitwalze 10 und Umlenkwalze 11 an einem Trag-Schlitten 13 gelagert, der auf einem Untergestell 14 horizontal verschiebbar ist. Zu diesem Zweck ist eine nicht veranschaulichte Abstandsregelung vorgesehen, die dafür sorgt, daß die rechte Stirnkante des Trag-Schlittens 13 ständig einen vorbestimmten Abstand vom Umfang des Primärwickels 6 hat.The web 5 is fed to the primary roll 6 via a guide roll 10, for example a spreader roll, and a deflecting roll 11 such that the web section 12 immediately upstream of the primary roll 6 runs vertically and tangentially to the winding circumference. So that this state is maintained even with increasing winding diameter, guide roller 10 and deflection roller 11 are mounted on a support slide 13 which is horizontally displaceable on a base frame 14. For this purpose, a distance control, not shown, is provided, which ensures that the right front edge of the support slide 13 is constantly at a predetermined distance from the circumference of the primary winding 6.

Vom Trag-Schlitten 13 wird ferner eine Andruckwalze 15 getragen, die mit dem Primärwickel 6 einen Einlaufspalt 16 bildet und mit Hilfe eines Kurzhub-Kraftgebers 17 gegen den Wickelumfang gedrückt werden kann. Diese Anstellkraftregelung für den Kontaktdruck kann beispielsweise elektro-pneumatisch erfolgen. Durch Wahl des Kontaktdrucks und der Bahnspannung läßt sich ein optimaler Wickel erzeugen.The support carriage 13 also carries a pressure roller 15, which forms an inlet gap 16 with the primary winding 6 and can be pressed against the winding circumference with the aid of a short-stroke force generator 17. This contact force control for the contact pressure can be carried out, for example, electro-pneumatically. By choosing the contact pressure and the web tension, an optimal winding can be produced.

Die Andruckwalze 15 mit dem Kurzhub-Kraftgeber 17 ist auf einem Walzenlager-Schlitten 18 angeordnet, der längs einer vertikalen Führungsbahn 19, die am Trag-Schlitten 13 ausgebildet ist, verlagert werden kann. Der Walzenlager-Schlitten 18 trägt ferner unterhalb der Andruckwalze 15 eine Trennvorrichtung 20 mit einem Trennmesser 21 und benachbarten Blasdüsen 22. Außerdem ist am Trag-Schlitten 13 unterhalb der Andruckwalze 15 eine Hilfs-Andruckwalze 23, ebenfalls mit einer Anstellvorrichtung 24 versehen, angeordnet.The pressure roller 15 with the short stroke force generator 17 is arranged on a roller bearing slide 18 which can be displaced along a vertical guide track 19 which is formed on the support slide 13. The roller bearing carriage 18 also carries a separating device 20 with a separating knife 21 and adjacent blowing nozzles 22 below the pressure roller 15. In addition, an auxiliary pressure roller 23, also provided with an adjusting device 24, is arranged on the carrying slide 13 below the pressure roller 15.

Auf einem weiteren Untergestell 25 ist ein horizontal verfahrbarer Übergabe-Schlitten 26 angeordnet. Er trägt eine zur Führungsbahn 19 parallele Führungsbahn 27, auf der ein Tambourlager-Schlitten 28 vertikal verschiebbar ist. Dieser Schlitten trägt ein Lager 29 für einen Sekundärtambour 30 und bildet in der in Fig. 1 veranschaulichten oberen Stellung eine Aufnahmestation 31 für diesen Sekundärtambour. Ein Antrieb 32 für diesen Sekundärtambour 30 ist ortsfest auf der dem Antrieb 7 gegenüberliegenden Seite der Vorrichtung angeordnet und mit dem Sekundärtambour über eine Gelenkwelle verbunden.A horizontally movable transfer carriage 26 is arranged on a further underframe 25. It carries a guide track 27 parallel to the guide track 19, on which a drum bearing slide 28 can be displaced vertically. This carriage carries a bearing 29 for a secondary drum 30 and, in the upper position illustrated in FIG. 1, forms a receiving station 31 for this secondary drum. A drive 32 for this secondary drum 30 is arranged in a fixed position on the side of the device opposite the drive 7 and is connected to the secondary drum via a cardan shaft.

Ferner besitzen der Tambourlager-Schlitten 28 und der Walzenlager-Schlitten 18 eine Kupplung 33, mit der diese Schlitten in der Aufnahmestation 31 in vertikaler Richtung formschlüssig - aber horizontal verschieblich - gekoppelt werden können, z.B. durch hydraulisch verschiebbare Bolzen. Die Achsen des zweiten Tambours 30 und der Andruckwalze 15 liegen in einer Horizontalebene, die sich langsm nach unten verschiebt.Furthermore, the spool bearing carriage 28 and the roller bearing carriage 18 have a coupling 33 with which these carriages can be coupled in a positive manner in the receiving station 31 in the vertical direction - but horizontally displaceable, e.g. thanks to hydraulically displaceable bolts. The axes of the second drum 30 and the pressure roller 15 lie in a horizontal plane which is slowly shifted downwards.

Die Fig. 1 bis 5 zeigen die beschriebene Wickelvorrichtung in verschiedenen, aufeinanderfolgenden Betriebsstellungen.1 to 5 show the winding device described in different, successive operating positions.

Fig. 1 veranschaulicht den normalen Wickelbetrieb kurz vor Erreichen des maximalen Wickeldurchmessers des Primärwickels 6. In der Aufnahmestation 31 befindet sich bereits der zweite Tambour 30. Der vorangehende Wickel 6' hat die Abnahmeposition erreicht.1 illustrates normal winding operation shortly before the maximum winding diameter of the primary winding 6 is reached. The second drum 30 is already located in the receiving station 31. The preceding winding 6 'has reached the removal position.

Fig. 2 zeigt die Situation kurz nach Einleitung des Rollenwechsels, wenn also der Primärwickel 6 nahezu den gewünschten Durchmesser erreicht hat. Die Hilfs-Andruckwalze 23 wird mit Hilfe ihrer Anstellvorrichtung 24 gegen den Umfang des Primärwickels 6 gedrückt. Unmittelbar darauf wird der Walzenlager-Schlitten 18 im Schnellgang bis in die Höhe der Aufnahmestation 31 gefahren und dort mit Hilfe der Kupplung 33 mit dem Tambourlager-Schlitten 28 verbunden. Der zweite Tambour 30 war inzwischen schon durch den Antrieb 32 auf die der Bahngeschwindigkeit entsprechende Umfangsgeschwindigkeit gebracht worden. Während dieser Schritte können der Trag-Schlitten 13 und der Übergabe-Schlitten 26 in ihrer zuletzt eingenommenen Position fixiert werden. Die Abstandsregelung wird kurzzeitig außer Kraft gesetzt und erst wieder mit dem Kontakt zwischen der Andruckwalze 17 und dem zweiten Tambour 30 aktiviert, während der Übergabeschlitten 26 zunächst weiterhin fixiert bleibt.2 shows the situation shortly after the roll change has been initiated, that is to say when the primary winding 6 has almost reached the desired diameter. The auxiliary pressure roller 23 is pressed with the aid of its adjusting device 24 against the circumference of the primary roll 6. Right away thereupon the roller bearing slide 18 is moved in high speed up to the height of the receiving station 31 and is connected there to the drum bearing slide 28 with the aid of the coupling 33. The second drum 30 had already been brought to the peripheral speed corresponding to the web speed by the drive 32. During these steps, the carrier slide 13 and the transfer slide 26 can be fixed in their last position. The distance control is temporarily deactivated and is only activated again with the contact between the pressure roller 17 and the second drum 30, while the transfer carriage 26 initially remains fixed.

Unmittelbar danach erfolgt eine schlagartige Bahntrennung durch das Messer 21 der Trennvorrichtung 20. Das Ende des vorlaufenden Bahnabschnitts wickelt sich auf den Primärwickel 6. Der Anfang des nachlaufenden Bahnabschnitts legt sich, unterstützt durch die Blasdüsen 22, um den zweiten Tambour 30. Die schlagartige Bahntrennung und die gleichzeitige Anwickelung der vollen Bahnbreite in wenigen hundertstel Sekunden ist bei hohen Rollenwechselgeschwindigkeiten erstrebenswert, um Konizitäten oder Bombagen des Wickelkerns zu vermeiden. Außerdem wird hierdurch der Bahnausschuß verringert. Statt der Blasdüsen 22 kann das Anwickeln auch durch eine Befeuchtung des zweiten Tambours 30 und/oder einer luftdüsenbestückten Leitschale, die ein- und ausschwenkbar ist, unterstützt werden.Immediately afterwards there is an abrupt web separation by the knife 21 of the separating device 20. The end of the leading web section winds on the primary winding 6. The beginning of the trailing web section, supported by the blowing nozzles 22, wraps around the second drum 30. The abrupt web separation and The simultaneous winding of the full web width in a few hundredths of a second is desirable at high roll change speeds in order to avoid conicity or bombing of the winding core. In addition, this reduces the railway committee. Instead of the blowing nozzles 22, the winding can also be supported by moistening the second drum 30 and / or an air nozzle-equipped guide shell which can be swung in and out.

Weil der Sekundärwickel 6'' in der Aufnahmestation 31 schon von Beginn an die eingangs beschriebenen optimalen Wickelparameter besitzt, können der zweite Tambour 30 und die mit ihr gekoppelte Andruckwalze 15 in einem präzisen Schleichgang bis in die Höhe der Wickelstation 1, aus der der Primärwickel 6 nach Absenken des Lagers 3 mit Hilfe der Schlepparme 9 entfernt worden ist, abgesenkt werden (Fig. 3). Zu diesem Zweck sollte einer der Hubantriebe für den Walzenlager-Schlitten 18 und den Tambourlager-Schlitten 28 von präziser Art sein, z.B. in der Form von Spindelhubelementen, während der Hubantrieb für den anderen Schlitten, weil er mit dem erstgenannten Schlitten gekoppelt ist, weniger präzise ausgelegt sein muß, z.B. einen Seilzugzylinder oder einen Luftmotor aufweisen kann. Zweckmäßigerweise ist der Hubantrieb für den Tambourlager-Schlitten präzise ausgelegt, weil es sinnvoller ist, die kleine Andruckwalzenmasse von der größeren Tambourmasse unternehmen zu lassen als umgekehrt. Wegen der langsamen Absenkbewegung, hat die Bahnzugregelung, die dabei mit Hilfe des Antriebs 32 bewirkt wird, genügend Zeit, die bei jeder Änderung der Bahnlauflängen erforderliche Anpassung zu vollziehen. Der optimale Wickelvorgang wird daher nicht beeinträchtigt. Bei dieser Abwärtsbewegung kann der Übergabe-Schlitten 16 ortsfest gehalten werden, während der Trag-Schlitten 13 in Abhängigkeit von einer Abstandsregelung dem zunehmenden Radius des Sekundärwickels 6'' folgt.Because the secondary reel 6 ″ in the receiving station 31 has the optimal winding parameters described at the beginning, the second reel 30 and the pressure roller 15 coupled to it can in a precise creep speed up to the level of the winding station 1, from which the primary reel 6 after lowering the bearing 3 has been removed with the aid of the tow arms 9, can be lowered (FIG. 3). For this purpose, one of the lifting drives for the roller bearing slide 18 and the spool bearing slide 28 should be of a precise type, for example in the form of spindle lifting elements, while the lifting drive for the other slide, because it is coupled to the first-mentioned slide, is less precise must be designed, for example, can have a cable cylinder or an air motor. The lifting drive for the spool bearing slide is expediently designed precisely because it makes more sense to let the small pressure roller mass undertake by the larger spool mass than vice versa. Because of the slow lowering movement, the web tension control, which is brought about with the aid of the drive 32, has sufficient time to carry out the adjustment required each time the web running length changes. The optimal winding process is therefore not affected. During this downward movement, the transfer carriage 16 can be held stationary, while the support carriage 13 follows the increasing radius of the secondary winding 6 ″ depending on a distance control.

Sobald der Walzenlager-Schlitten 18 und der Tambourlager-Schlitten 28, die miteinander gekoppelt sind, die Höhe der Wickelstation 1 erreicht haben, wird die Fixierung der Position des Übergabe-Schlittens 26 aufgehoben und dessen Antrieb in Richtung auf die Wickelstation 1 eingeschaltet. Aufgrund der vorerwähnten Abstandsregelung folgt der Trag-Schlitten 13 dem Übergabe-Schlitten 26, vermindert um das Maß der Zunahme des Radius des Sekundärwickels 6''. Geringfügige Synchronfehler der Horizontalantriebe der beiden Schlitten bleiben ohne Auswirkung, weil der sensible, horizontal wirkende Kurzhub-Kraftgeber 17 ausgleichend wirkt.As soon as the roller bearing carriage 18 and the drum bearing carriage 28, which are coupled to one another, have reached the height of the winding station 1, the fixing of the position of the transfer carriage 26 is released and its drive in the direction of the winding station 1 is switched on. Due to the aforementioned distance control, the support carriage 13 follows the transfer carriage 26, less the amount of increase in the radius of the secondary winding 6 ″. Minor synchronous errors of the horizontal drives of the two carriages have no effect because the sensitive, horizontally acting short-stroke force transmitter 17 has a compensating effect.

Sobald der zweite Tambour 30 die Wickelstation 1 erreicht, werden die Lager 3 angehoben und in üblicher Weise verschlossen, so daß der Sekundärwickel 6'' für den weiteren Wickelvorgang eine feste Lagerung besitzt. Dies ist in Fig. 4 veranschaulicht. Der Tambour 30 wird mit dem Antrieb 7 verbunden, so daß der Antrieb 32 abgekuppelt werden kann. Da mit Hilfe der Antriebe auch der Bahnzug festgelegt wird, erfolgt eine entsprechende Übergabe der Regelung vom Antrieb 32 auf den Antrieb 7.As soon as the second drum 30 reaches the winding station 1, the bearings 3 are raised and closed in the usual way, so that the secondary winding 6 ″ has a fixed bearing for the further winding process. This is illustrated in Figure 4. The drum 30 is connected to the drive 7 so that the drive 32 can be uncoupled. Since the web train is also determined with the aid of the drives, the control is correspondingly transferred from the drive 32 to the drive 7.

Sobald der Wickeldurchmesser des Sekundärwickels 6'' größer geworden ist, wie dies Fig. 5 zeigt, kann der mit Hilfe des Übergabe-Schlittens 26 nach links verfahrene Tambourlager-Schlitten 28 bis in die Aufnahmestation 31 angehoben und dabei am zweiten Tambour 30 vorbeibewegt werden. Zweckmäßigerweise wird der Übergabe-Schlitten 26 zusammen mit dem Trag-Schlitten 13 verfahren und der Tambourlager-Schlitten 28 bei einer definierten Position nach oben bewegt. Damit ist die richtige Zuordnung aller Bauelemente für den nächsten Rollenwechsel gewährleistet.As soon as the winding diameter of the secondary winding 6 ″ has increased, as shown in FIG. 5, the drum bearing carriage 28, which is moved to the left with the aid of the transfer carriage 26, can be raised into the receiving station 31 and thereby moved past the second drum 30. The transfer carriage 26 is expediently moved together with the carrying carriage 13 and the drum bearing carriage 28 is moved upwards at a defined position. This ensures that all components are correctly assigned for the next roll change.

Von der beschriebenen Ausführungsform sind zahlreiche Abwandlungen möglich, ohne den Grundgedanken der Erfindung zu verlassen. Beispielsweise kann der Antrieb 32 auch durch einen mit dem Tambourlager-Schlitten 28 mitfahrenden Motor ersetzt werden. Die einzelnen Arbeitsschritte können vollautomatisch aneinander anschließen. Statt der beiden Untergestelle 14 und 25 kann auch ein gemeinsames Untergestell mit versetzten Ebenen verwendet werden. Die Horizontalantriebe können in üblicher Weise, z.B. hydro- oder elektromotorisch ausgebildet sein. Die Andruckwalze 15 kann zur Kompensation von Durchbiegungen und/oder einer Beeinflussung des Kontaktdruckverlaufes über die Bahnbreite, z.B. bei Querprofilfehlern, als Durchbiegungsausgleichswalze ausgebildet sein. Sie kann zur Beeinflussung der Bahnspannung auch einen motorisch/generatorischen Antrieb aufweisen. Auch für die Aufrechterhaltung der Synchrongeschwindigkeit während der vom Wickel losgelösten Phase kann ein Antrieb der Andruckwalze 15 sinnvoll sein.Numerous modifications of the described embodiment are possible without leaving the basic idea of the invention. For example, the drive 32 can also be replaced by a motor that travels with the spool bearing slide 28. The individual work steps can connect to each other fully automatically. Instead of the two base frames 14 and 25, a common base frame with offset levels can also be used. The horizontal drives can be designed in the usual way, for example by a hydraulic or electric motor. The pressure roller 15 can be designed as a deflection compensation roller to compensate for deflections and / or to influence the contact pressure curve over the web width, for example in the case of transverse profile errors. It can be used to influence the web tension also have a motor / generator drive. A drive of the pressure roller 15 can also be expedient for maintaining the synchronous speed during the phase detached from the winding.

Claims (10)

Vorrichtung zum Aufwickeln einer kontinuierlich zulaufenden Bahn, insbesondere Papierbahn, auf einen Tambour, mit einer Wickelstation zum Bewickeln eines ersten Tambours (Primärwickel), einer Aufnahmestation zur Lagerung eines leeren zweiten Tambours, auf den nach einer Trennung der Bahn der nachfolgende Bahnabschnitt aufgewickelt wird (Sekundärwickel), einer Übergabevorrichtung zum Transport des zweiten Tambours von der Aufnahmestation zur Wickelstation, und einer Andruckwalze, die vom Wickelbeginn an, kontinuierlich bis in die Wickelstation und dort während des Wickelns am Umfang des Sekundärwickels anliegt und mit dem Umfang des Sekundärwickels einen Einlaufspalt bildet, in den die Bahn ständig etwa umschlingungsfrei eintritt, dadurch gekennzeichnet, daß die Wickelstation (1) und die Aufnahmestation (31) ortsfest angeordnet sind, die Übergabevorrichtung eine geradlinige erste Führungsbahn (27) für den Sekundärwickel (6'') aufweist und daß die Andruckwalze (15) sowohl für den Primärwickel (6) als auch für den Sekundärwickel (6'') vorgesehen ist, indem sie auf einer zur ersten Führungsbahn (27) parallelen zweiten Führungsbahn (19) vom nahezu fertigen Primärwinkel (6) in der Wickelstation (1) zum Sekundärwickel (6'') in der Aufnahmestation (31) und gemeinsam mit dem Sekundärwickel in die Wickelstation (1) verlagerbar ist.Device for winding a continuously running web, in particular paper web, onto a reel, with a winding station for winding a first reel (primary reel), a take-up station for storing an empty second reel onto which the subsequent web section is wound up after the web has been separated (secondary reel ), a transfer device for transporting the second reel from the take-up station to the winding station, and a pressure roller which, from the start of the winding, is continuously in contact with the winding station and there during winding on the circumference of the secondary winding and forms an inlet gap with the circumference of the secondary winding which the web constantly enters without wrapping, characterized in that the winding station (1) and the receiving station (31) are arranged in a fixed position, the transfer device has a straight first guideway (27) for the secondary winding (6 '') and that the pressure roller ( 15) both f r the primary winding (6) is provided as well as for the secondary reel (6 '') by placing them on a to the first guide track (27) parallel second guideway (19) from the almost finished primary angle (6) in the winding station (1) to the secondary winding (6 '') in the receiving station (31) and together with the secondary winding in the winding station (1). Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Andruckwalze (15) derart verlagerbar ist, daß die in den einzelnen Betriebsstellungen zwischen der Achse des zweiten Tambours (30) und der Achse der Andruckwalze (15) gebildeten Ebenen parallel zueinander verlaufen.Device according to claim 1, characterized in that the pressure roller (15) can be displaced in such a way that the planes formed in the individual operating positions between the axis of the second drum (30) and the axis of the pressure roller (15) run parallel to one another. Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß eine Umlenkwalze (11) vorgesehen ist, die der dem Wickel (6, 6'') zulaufenden Bahn (5) einen zu beiden Führungsbahnen parallelen Verlauf gibt.Apparatus according to claim 1 or 2, characterized in that a deflection roller (11) is provided which gives the path (5) running towards the winding (6, 6 '') a course parallel to both guide paths. Vorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die dem Wickel (6, 6'') zulaufende Bahn (5) einen vertikalen Verlauf hat und daß der den Sekundärwickel (6'') tragende zweite Tambour (30) sowie die Andruckwalze (15) beim Rollenwechsel zunächst vertikal von der Aufnahmestation (31) zur Wickelstation (1) absenkbar und dann horizontal verlagerbar sind, wobei die Achse der Andruckwalze (15) sich in der gleichen Horizontalebene wie die Achse des zweiten Tambours (30) befindet und eine die Vergrößerung des Wickeldurchmessers berücksichtigende Horizontalbewegung vollführt.Device according to one of claims 1 to 3, characterized in that the web (5) running towards the reel (6, 6 '') has a vertical profile and that the second reel (30) carrying the secondary reel (6 '') and the When changing the roll, the pressure roller (15) can first be lowered vertically from the take-up station (31) to the winding station (1) and then displaced horizontally, the axis of the pressure roller (15) being in the same horizontal plane as the axis of the second drum (30) and performs a horizontal movement that takes into account the increase in the winding diameter. Vorrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Übergabevorrichtung einen vertikal verfahrbaren Tambourlager-Schlitten (28) aufweist, die Andruckwalze (15) von einem vertikal verfahrbaren Walzenlager-Schlitten (18) getragen ist und beide Schlitten zwecks Gleichlauf in vertikaler Richtung koppelbar sind.Device according to one of claims 1 to 4, characterized in that the transfer device has a vertically movable spool bearing slide (28), the pressure roller (15) from a vertical movable roller bearing carriage (18) is carried and both carriages can be coupled in the vertical direction for the purpose of synchronism. Vorrichtung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß die Übergabevorrichtung einen horizontal verfahrbaren Übergabe-Schlitten (26) zur Übertragung des Sekundärwickels (6'') in die Wickelstation (1) aufweist.Device according to one of claims 1 to 5, characterized in that the transfer device has a horizontally movable transfer carriage (26) for transferring the secondary winding (6 '') into the winding station (1). Vorrichtung nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß die Andruckwalze (15) durch einen Kraftgeber (17) belastbar ist, der von einem horizontal verlagerbaren Trag-Schlitten (18) getragen wird, und daß der Trag-Schlitten durch eine Abstandsregelung ständig in einem vorbestimmten Abstand vom Umfang des Wickels (6, 6'') gehalten wird.Device according to one of claims 1 to 6, characterized in that the pressure roller (15) can be loaded by a force transmitter (17) which is carried by a horizontally displaceable support carriage (18), and in that the support carriage by a distance control is constantly kept at a predetermined distance from the circumference of the winding (6, 6 ''). Vorrichtung nach einem der Ansprüche 1 bis 7, gekennzeichnet durch eine Hilfs-Andruckwalze (23), die außerhalb des Wegs der Andruckwalze (15) angeordnet ist und kurz vor dem Trennen der Bahn (5) an den Primärwickel (6) andrückbar ist.Device according to one of claims 1 to 7, characterized by an auxiliary pressure roller (23) which is arranged outside the path of the pressure roller (15) and can be pressed onto the primary winding (6) shortly before the web (5) is separated. Vorrichtung nach einem der Ansprüche 1 bis 8, gekennzeichnet durch einen Schnellgang für die Rückführung der Andruckwalze (15) von der Wickelstation (1) in die Aufnahmestation (31).Device according to one of claims 1 to 8, characterized by an overdrive for the return of the pressure roller (15) from the winding station (1) to the receiving station (31). Vorrichtung nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, daß eine Trennvorrichtung (20) für die Bahn (5) mit einem die Andruckwalze (15) tragenden Schlitten (18) verbunden ist.Device according to one of claims 1 to 9, characterized in that a separating device (20) for the web (5) is connected to a carriage (18) carrying the pressure roller (15).
EP95105608A 1994-05-02 1995-04-13 Device for winding up a continously fed web, especially for paper web Expired - Lifetime EP0680911B1 (en)

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DE4415324A DE4415324C2 (en) 1994-05-02 1994-05-02 Device for winding up a continuously running web, in particular a paper web
DE4415324 1994-05-02

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EP0680911B1 EP0680911B1 (en) 1998-06-24

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DE3914547A1 (en) * 1989-05-02 1990-11-08 Escher Wyss Gmbh DEVICE FOR ROLLING OR ROLLING A PAPER SHEET
DE4104635A1 (en) * 1991-02-15 1992-08-20 Werner Muelfarth DEVICE FOR ROLLING RAIL OR STRIPED MATERIALS

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0921085A2 (en) * 1997-12-08 1999-06-09 Voith Sulzer Papiertechnik Patent GmbH Method of and winding machine for continuously winding a material web
EP0921085A3 (en) * 1997-12-08 2000-05-31 Voith Sulzer Papiertechnik Patent GmbH Method of and winding machine for continuously winding a material web
WO2010007023A1 (en) * 2008-07-18 2010-01-21 Windmöller & Hölscher Kg Device and method for unwinding and/or winding up webs of material
WO2013156036A1 (en) * 2012-04-18 2013-10-24 Jesco Holding Aps Winding apparatus for winding a web into a roll
CN106241452A (en) * 2016-10-19 2016-12-21 郑州纺机工程技术有限公司 A kind of wet up-coiler being applicable to non-weaving cloth cotton pads spun lacing production line

Also Published As

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FI952036A0 (en) 1995-04-28
US5577685A (en) 1996-11-26
EP0680911B1 (en) 1998-06-24
ATE167652T1 (en) 1998-07-15
FI952036A (en) 1995-11-03
DE4415324C2 (en) 1996-07-18
DE4415324A1 (en) 1995-11-09
JPH0840613A (en) 1996-02-13
DE59502634D1 (en) 1998-07-30
CA2146687A1 (en) 1995-11-03
JP2611156B2 (en) 1997-05-21

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