EP0695708A2 - Winding device with a winding roll for material in web form - Google Patents

Winding device with a winding roll for material in web form Download PDF

Info

Publication number
EP0695708A2
EP0695708A2 EP95110989A EP95110989A EP0695708A2 EP 0695708 A2 EP0695708 A2 EP 0695708A2 EP 95110989 A EP95110989 A EP 95110989A EP 95110989 A EP95110989 A EP 95110989A EP 0695708 A2 EP0695708 A2 EP 0695708A2
Authority
EP
European Patent Office
Prior art keywords
winding
support plate
roll
radius
winding roll
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
EP95110989A
Other languages
German (de)
French (fr)
Other versions
EP0695708B1 (en
EP0695708A3 (en
Inventor
Hans-Rolf Conrad
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
Original Assignee
Voith Sulzer Finishing 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 Voith Sulzer Finishing GmbH filed Critical Voith Sulzer Finishing GmbH
Publication of EP0695708A2 publication Critical patent/EP0695708A2/en
Publication of EP0695708A3 publication Critical patent/EP0695708A3/en
Application granted granted Critical
Publication of EP0695708B1 publication Critical patent/EP0695708B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • B65H18/02—Supporting web roll
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2406/00—Means using fluid
    • B65H2406/10—Means using fluid made only for exhausting gaseous medium
    • B65H2406/11—Means using fluid made only for exhausting gaseous medium producing fluidised bed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2406/00—Means using fluid
    • B65H2406/10—Means using fluid made only for exhausting gaseous medium
    • B65H2406/13—Means using fluid made only for exhausting gaseous medium pressure arrangement for compensating weight of handled material
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S242/00—Winding, tensioning, or guiding
    • Y10S242/908—Fluid treatment or handling

Definitions

  • the invention relates to a winding device with a winding roll for web-like material, in particular paper, with a support device which counteracts a deflection of the winding roll from below and which generates a compressed air cushion between the support device and the winding roll.
  • both devices cause inadequate protection of the winding surface, because both the support rollers and the moving belt exert a mechanical influence on the web to be wound, namely in the winding device with air cushion space because the seal at the two axial ends of the air cushion space because of the changing winding radius, which can for example increase from 500 mm to 3000 mm, is difficult.
  • FIG. 7 it is known to arrange a height-adjustable and pivotable air box below the winding roll, which extends over its length and is open at the top and pressurized with compressed air.
  • the air box On its front upper edges, the air box is provided with sealing strips that can be adapted by means of adjusting elements arranged in the air box, and on its one longitudinal upper edge also with a sealing strip and on the other longitudinal upper edge with a spacer roller that extends along this upper edge.
  • the sealing strips are held at a distance corresponding to a desired air gap from the winding roller by the spacing roller which bears against the winding roller when the air box is pivoted against it to avoid friction between the winding roller and the sealing strips.
  • a further spacer roller is mounted along the other longitudinal top edge of the air box.
  • the object of the invention is to provide a winding device of the type mentioned at the outset, which enables the web to be supported more reliably and gently within the web width.
  • the support device has at least one support plate with a top surface largely adapted to the contour of the underside of the winding roll, in which at least one compressed air outlet opening is formed, that the compressed air can escape through a gap between the winding roll and the support plate, and in that the support plate is automatically adjustable radially to the winding roll as a function of the winding diameter and adapts to the winding roll contour.
  • the support plate can be designed to be flexible.
  • the support plate can therefore extend over a relatively large wrap angle of the winding roll and yet bend easily against the force of the compressed air so that the radius of curvature of its upper side largely under the force of servomotors which act in the vicinity of their edges which extend axially parallel to the winding roll is adapted to the respective radius of curvature of the winding or the winding on the winding roll.
  • the support plate prefferably has a downwardly projecting projection on its underside near each of its axial longitudinal edges and between the ends of the projections an actuator is articulated, by which a force can be exerted on those ends which causes the support plate to bend such that the radius of curvature of its top corresponds to the instantaneous radius of the winding on the winding roll.
  • a web 1 here a paper web
  • a contact or contact roller 3 with a force F k on the winding roller 2 or the winding 4 (or the winding ) pressed.
  • F k the force on the winding roller 2 or the winding 4 (or the winding ) pressed.
  • the winding roll 2 and the winding 4 bend more strongly, the different deflection differences ⁇ F between the contact roll 3 and the winding roll 2 or roll 4 leading to an uneven contact pressure curve q k over the web width, with the result that crepe folds and Bursts occur in the edge areas of the winding 4.
  • a support device with a flexible support plate 5 and pneumatic or hydraulic actuators 6 in the form of piston-cylinder arrangements is provided.
  • the support plate 5 has a top surface largely adapted to the contour of the underside of the winding roll 2, in which three compressed air outlet openings 7, to which compressed air is supplied through the support plate 5 from a compressed air source, not shown, are formed.
  • the compressed air can exit through gaps 8 between the winding roller 2 and the support plate 5 and counteracts the force F r of the servomotors 6 acting in the vicinity of the longitudinal edges of the support plate 5 parallel to the winding roller 2.
  • the compressed air forms an air cushion in the gap 8 between the support plate 5 and the winding roll 2, the top of the support plate 5, due to the bending elasticity of the support plate 5, the contour of the winding 4 with increasing diameter of the winding 4 from the smallest winding radius R min corresponds to the radius of the winding roll 2, largely adapts to the largest radius of curvature R max of the winding 4.
  • the support plate 5 is shifted downwards by the servomotors 6 in synchronism with the increase in the diameter of the winding 4, as is shown by the lower position of the support plate 5 in FIG. 2.
  • each support plate 5 has only one compressed air outlet opening 7 provided in which the radius of curvature of the tops of the support plates 5 a mean radius of curvature R of the middle roll 4 is adapted.
  • Each support plate 5 has only one compressed air outlet opening 7 and is subjected to the force F r individually by one of the two servomotors 6, the direction of action of the forces F r , in contrast to that of the forces F r in the embodiment according to FIG. 2, in the Attacks the center of the respective support plate 5 and is directed exactly radially to the central axis of the winding roll 2.
  • the servomotors 6 are articulated on the one hand with their piston rod on the support plate 5 and on the other hand on a stationary frame. Furthermore, the winding radius acts as a reference variable for the adjustment of the support plate (s) 5 by the servomotors 6 in a position control device.
  • FIG. 6 it is possible to provide a modification according to FIG. 6 in which only one support plate 5 according to FIG. 2 and two support plates 5 according to FIG. 3, in which the single or each support plate 5 on its underside in the vicinity of each of them Axial longitudinal edges each have a downwardly projecting projection 9 and a servomotor 10 is articulated between the ends of the projections 9, by which a tangential force F t can be exerted on those ends, which causes such a bending of the support plate 5 that the radius of curvature of their Top corresponds to the current radius R of the winding 4 on the winding roll 2.
  • a is the lever arm or approximately the radial length of the projections 9

Abstract

The roll (2) is esp. for paper and is supported at the underside to counteract sagging. A cushion of compressed air is generated between the support (5,6) and the roll. The support comprises one or more plates, whose surface largely matches the contour of the underside of the roll. The plate contains one or more compressed-air outlets (7), and the air can escape between it and the roll. The plate adjusts automatically in the radial direction of the roll dependent on the diameter of the latter, to match its contour. The plate can bend elastically under the action of an adjusting motor (6) with a hinge joint (8) to one of its lengthwise edges.

Description

Die Erfindung bezieht sich auf eine Wickelvorrichtung mit einer Wickelrolle für bahnförmiges Material, insbesondere Papier, mit einer einer Durchbiegung der Wickelrolle von unten entgegenwirkenden Stützeinrichtung, die ein Druckluftkissen zwischen der Stützeinrichtung und der Wickelrolle erzeugt.The invention relates to a winding device with a winding roll for web-like material, in particular paper, with a support device which counteracts a deflection of the winding roll from below and which generates a compressed air cushion between the support device and the winding roll.

Beim Auf- und Abwickeln eines bahnförmigen Materials, insbesondere Papier, kommt es je nach Relation der Wickelmasse, Bahnbreite, physikalischen Eigenschaften der Wickellagen (z.B. Wickelhärte, Dehnungs-, Kompressions- und Reibverhalten des Papiers), Steifigkeit und Lagerabstand der Wickelwelle bzw. des Tambours zu Schwierigkeiten aufgrund der Durchbiegung der Aufwickelrolle.When winding and unwinding a web-like material, especially paper, depending on the relation of the winding mass, web width, physical properties of the winding layers (e.g. winding hardness, elongation, compression and friction behavior of the paper), stiffness and bearing distance of the winding shaft or the reel difficulties due to the deflection of the take-up roll.

Vor allem bei Verwendung einer Kontakt- oder Anlagewalze, die etwa horizontal gegen die Wicklung auf der Wickelrolle gedrückt wird, führen unterschiedliche Durchbiegungen von Anlagewalze und Wickelrolle zu einem ungleichförmigen Kontaktdruckverlauf über die Bahnbreite, mit der Folge, daß Kreppfalten und Platzer in den Randbereichen der Wicklung auftreten.Especially when using a contact or contact roller, which is pressed approximately horizontally against the winding on the winding roller, different deflections of the contact roller and winding roller lead to a non-uniform contact pressure curve across the web width, with the result that crepe folds and bursts in the edge areas of the winding occur.

Aus der DE-OS 36 39 244 ist es bekannt, eine Durchbiegungsdifferenz durch vollständiges oder teilweises Aufheben des Rollengewichts über mitlaufende, unterstützende Bänder auszugleichen.From DE-OS 36 39 244 it is known to compensate for a deflection difference by completely or partially canceling the roll weight by means of accompanying, supporting belts.

Bei der eingangs geschilderten, aus der DE-OS 40 26 597 bekannten Wickelvorrichtung wird in einem Raum zwischen unterhalb der Wickelrolle und achsparallel zu dieser angeordneten Tragwalzen ein Überdruck erzeugt, der ein Luftkissen in einem Spalt zwischen der Wickelrolle und den Tragwalzen ausbildet.In the winding device described at the outset, known from DE-OS 40 26 597, an overpressure is generated in a space between below the winding roller and axially parallel to the supporting rollers which forms an air cushion in a gap between the winding roller and the supporting rollers.

Beide Vorrichtungen bewirken jedoch eine unzureichende Schonung der Wickeloberfläche, denn sowohl die Tragwalzen als auch das mitlaufende Band üben einen mechanischen Einfluß auf die aufzuwickelnde Bahn aus, und zwar bei der Wickelvorrichtung mit Luftkissenraum deshalb, weil die Abdichtung an den beiden axialen Enden des Luftkissenraums wegen des sich verändernden Wickelradius, der beispielsweise von 500 mm auf 3000 mm anwachsen kann, schwierig ist.However, both devices cause inadequate protection of the winding surface, because both the support rollers and the moving belt exert a mechanical influence on the web to be wound, namely in the winding device with air cushion space because the seal at the two axial ends of the air cushion space because of the changing winding radius, which can for example increase from 500 mm to 3000 mm, is difficult.

Aus der DE 42 01 815 A1, Fig. 7, ist es bekannt, unterhalb der Wickelrolle einen sich über deren Länge erstreckenden, nach oben offenen und mit Druckluft beaufschlagten Luftkasten höhenverstellbar und verschwenkbar anzuordnen. An seinen stirnseitigen Oberkanten ist der Luftkasten mit der Krümmung der Wickelrolle mittels im Luftkasten angeordneter Stellelemente anpaßbaren Dichtleisten und an seiner einen längsseitigen Oberkante ebenfalls mit einer Dichtleiste und an der anderen längsseitigen Oberkante mit einer sich längs dieser Oberkante erstreckenden Distanzrolle versehen. Die Dichtleisten werden durch die sich beim Anschwenken des Luftkastens an die Wickelrolle an diese anlegende Distanzrolle in einem Abstand entsprechend einem gewünschten Luftspalt von der Wickelrolle gehalten, um eine Reibung zwischen der Wickelrolle und den Dichtleisten zu vermeiden. Bei der Ausführungsform nach Fig. 8 ist eine weitere Distanzrolle längs der anderen längsseitigen Oberkante des Luftkastens gelagert. Eine solche Einrichtung ist wegen ihrer zahlreichen Bauteile aufwendig und arbeitet nicht berührungslos.From DE 42 01 815 A1, FIG. 7, it is known to arrange a height-adjustable and pivotable air box below the winding roll, which extends over its length and is open at the top and pressurized with compressed air. On its front upper edges, the air box is provided with sealing strips that can be adapted by means of adjusting elements arranged in the air box, and on its one longitudinal upper edge also with a sealing strip and on the other longitudinal upper edge with a spacer roller that extends along this upper edge. The sealing strips are held at a distance corresponding to a desired air gap from the winding roller by the spacing roller which bears against the winding roller when the air box is pivoted against it to avoid friction between the winding roller and the sealing strips. In the embodiment according to FIG. 8, a further spacer roller is mounted along the other longitudinal top edge of the air box. Such a device is complex because of its numerous components and does not work without contact.

Aufgabe der Erfindung ist es, eine Wickelvorrichtung der eingangs genannten Art anzugeben, die eine die Bahn zuverlässiger schonende Abstützung der Wickelrolle innerhalb der Bahnbreite ermöglicht.The object of the invention is to provide a winding device of the type mentioned at the outset, which enables the web to be supported more reliably and gently within the web width.

Erfindungsgemäß ist diese Aufgabe dadurch gelöst, daß die Stützeinrichtung wenigstens eine Stützplatte mit einer der Kontur der Unterseite der Wickelrolle weitgehend angepaßten Oberseite aufweist, in der wenigstens eine Druckluftaustrittsöffnung ausgebildet ist, daß die Druckluft durch einen Spalt zwischen der Wickelrolle und der Stützplatte austreten kann und daß die Stützplatte radial zur Wickelrolle in Abhängigkeit vom Wickeldurchmesser selbsttätig verstellbar ist und sich dabei der Wickelrollenkontur anpaßt.According to the invention, this object is achieved in that the support device has at least one support plate with a top surface largely adapted to the contour of the underside of the winding roll, in which at least one compressed air outlet opening is formed, that the compressed air can escape through a gap between the winding roll and the support plate, and in that the support plate is automatically adjustable radially to the winding roll as a function of the winding diameter and adapts to the winding roll contour.

Die Stützplatte kann biegeelastisch ausgebildet sein. Die Stützplatte kann sich daher über einen verhältnismäßig großen Umschlingungswinkel der Wickelrolle erstrecken und sich dennoch leicht unter der Kraft von Stellmotoren, die in der Nähe ihrer sich achsparallel zur Wickelrolle erstreckenden Ränder angreifen, gegen die Kraft der Druckluft so verbiegen, daß der Krümmungsradius ihrer Oberseite weitgehend dem jeweiligen Krümmungsradius des Wickels bzw. der Wicklung auf der Wickelrolle angepaßt ist.The support plate can be designed to be flexible. The support plate can therefore extend over a relatively large wrap angle of the winding roll and yet bend easily against the force of the compressed air so that the radius of curvature of its upper side largely under the force of servomotors which act in the vicinity of their edges which extend axially parallel to the winding roll is adapted to the respective radius of curvature of the winding or the winding on the winding roll.

Es ist aber auch möglich, daß die Stützplatte an ihrer Unterseite in der Nähe jedes ihrer axialen Längsränder jeweils einen nach unten vorstehenden Vorsprung aufweist und zwischen den Enden der Vorsprünge ein Stellmotor gelenkig befestigt ist, durch den auf jene Enden eine Kraft ausübbar ist, die eine derartige Verbiegung der Stützplatte bewirkt, daß der Krümmungsradius ihrer Oberseite dem augenblicklichen Radius des Wickels auf der Wickelrolle entspricht.However, it is also possible for the support plate to have a downwardly projecting projection on its underside near each of its axial longitudinal edges and between the ends of the projections an actuator is articulated, by which a force can be exerted on those ends which causes the support plate to bend such that the radius of curvature of its top corresponds to the instantaneous radius of the winding on the winding roll.

Die Erfindung wird nachstehend anhand der beigefügten Zeichnungen näher beschrieben. Es zeigen:

Fig. 1
eine schematische Darstellung einer herkömmlichen Wickelvorrichtung in Seiten- und Vorderansicht,
Fig. 2
ein erstes Ausführungsbeispiel einer erfindungsgemäßen Wickelvorrichtung in schematischer Darstellung,
Fig. 3
ein zweites Ausführungsbeispiel einer erfindungsgemäßen Wickelvorrichtung in schematischer Darstellung,
Fig. 4 und 5
einen Teil der Wickelvorrichtung nach Fig. 3 im unbewickelten Zustand der Wickelrolle (Fig. 4) und im vollständig bewickelten Zustand der Wickelrolle (Fig. 5) und
Fig. 6
eine schematische Darstellung eines weiteren Ausführungsbeispiels einer erfindungsgemäßen Wickelvorrichtung.
The invention is described below with reference to the accompanying drawings. Show it:
Fig. 1
a schematic representation of a conventional winding device in side and front view,
Fig. 2
a first embodiment of a winding device according to the invention in a schematic representation,
Fig. 3
a second embodiment of a winding device according to the invention in a schematic representation,
4 and 5
3 in the unwound state of the winding roll (FIG. 4) and in the fully wound state of the winding roll (FIG. 5) and
Fig. 6
is a schematic representation of a further embodiment of a winding device according to the invention.

Bei einer herkömmlichen Wickelvorrichtung nach Fig. 1 wird eine Bahn 1, hier eine Papierbahn, auf eine Wickelrolle 2 gewickelt und dabei durch eine Kontakt- oder Anlagewalze 3 horizontal mit einer Kraft Fk an die Wickelrolle 2 bzw. den Wickel 4 (oder die Wicklung) angedrückt. Mit zunehmendem Durchmesser und entsprechend steigendem Gewicht des Wickels 4 biegen sich die Wickelrolle 2 und der Wickel 4 stärker durch, wobei die unterschiedlichen Durchbiegungsdifferenzen ΔF zwischen Anlagewalze 3 und Wickelrolle 2 bzw. Wickel 4 zu einem ungleichförmigen Kontaktdruckverlauf qk über die Bahnbreite führen, mit der Folge, daß Kreppfalten und Platzer in den Randbereichen des Wickels 4 auftreten.In a conventional winding device according to FIG. 1, a web 1, here a paper web, is wound on a winding roller 2 and thereby horizontally by a contact or contact roller 3 with a force F k on the winding roller 2 or the winding 4 (or the winding ) pressed. With increasing diameter and accordingly As the weight of the roll 4 increases, the winding roll 2 and the winding 4 bend more strongly, the different deflection differences ΔF between the contact roll 3 and the winding roll 2 or roll 4 leading to an uneven contact pressure curve q k over the web width, with the result that crepe folds and Bursts occur in the edge areas of the winding 4.

Bei dem Ausführungsbeispiel einer erfindungsgemäßen Wickelvorrichtung nach Fig. 2 ist eine Stützeinrichtung mit einer biegeelastischen Stützplatte 5 und pneumatischen oder hydraulischen Stellmotoren 6 in Form von Kolben-Zylinder-Anordnungen vorgesehen. Die Stützplatte 5 hat eine der Kontur der Unterseite der Wickelrolle 2 weitgehend angepaßte Oberseite, in der drei Druckluftaustrittsöffnungen 7, denen Druckluft durch die Stützplatte 5 hindurch aus einer nicht dargestellten Druckluftquelle zugeführt wird, ausgebildet sind. Die Druckluft kann durch Spalte 8 zwischen der Wickelrolle 2 und der Stützplatte 5 austreten und wirkt der in der Nähe der zur Wickelrolle 2 parallelen Längsränder der Stützplatte 5 angreifenden Kraft Fr der Stellmotoren 6 entgegen. Die Druckluft bildet ein Luftkissen in dem Spalt 8 zwischen der Stützplatte 5 und der Wickelrolle 2, wobei sich die Oberseite der Stützplatte 5 aufgrund der Biegeelastizität der Stützplatte 5 der Kontur des Wickels 4 mit zunehmendem Durchmesser des Wickels 4 von dem kleinsten Wickelradius Rmin, der dem Radius der Wickelrolle 2 entspricht, bis zum größten Krümmungsradius Rmax des Wickels 4 weitgehend anpaßt. Synchron mit der Zunahme des Durchmessers des Wickels 4 wird dazu die Stützplatte 5 durch die Stellmotoren 6 nach unten verschoben, wie es durch die untere Lage der Stützplatte 5 in Fig. 2 dargestellt ist.In the embodiment of a winding device according to the invention according to FIG. 2, a support device with a flexible support plate 5 and pneumatic or hydraulic actuators 6 in the form of piston-cylinder arrangements is provided. The support plate 5 has a top surface largely adapted to the contour of the underside of the winding roll 2, in which three compressed air outlet openings 7, to which compressed air is supplied through the support plate 5 from a compressed air source, not shown, are formed. The compressed air can exit through gaps 8 between the winding roller 2 and the support plate 5 and counteracts the force F r of the servomotors 6 acting in the vicinity of the longitudinal edges of the support plate 5 parallel to the winding roller 2. The compressed air forms an air cushion in the gap 8 between the support plate 5 and the winding roll 2, the top of the support plate 5, due to the bending elasticity of the support plate 5, the contour of the winding 4 with increasing diameter of the winding 4 from the smallest winding radius R min corresponds to the radius of the winding roll 2, largely adapts to the largest radius of curvature R max of the winding 4. To this end, the support plate 5 is shifted downwards by the servomotors 6 in synchronism with the increase in the diameter of the winding 4, as is shown by the lower position of the support plate 5 in FIG. 2.

Bei dem Ausführungsbeispiel der erfindungsgemäßen Wickelvorrichtung nach Fig. 3 sind nur zwei Stützplatten 5 mit jeweils einer Druckluftaustrittsöffnung 7 vorgesehen, bei denen der Krümmungsradius der Oberseiten der Stützplatten 5 einem mittleren Krümmungsradius Rmittel des Wickels 4 angepaßt ist. Jede Stützplatte 5 hat nur eine Druckluftaustrittsöffnung 7 und wird individuell durch einen der beiden Stellmotoren 6 mit der Kraft Fr beaufschlagt, wobei die Wirkungsrichtung der Kräfte Fr, im Gegensatz zu der der Kräfte Fr bei dem Ausführungsbeispiel nach Fig. 2, in der Mitte der jeweiligen Stützplatte 5 angreift und genau radial zur Mittelachse der Wickelrolle 2 gerichtet ist.3, there are only two support plates 5 each having a compressed air outlet opening 7 provided in which the radius of curvature of the tops of the support plates 5 a mean radius of curvature R of the middle roll 4 is adapted. Each support plate 5 has only one compressed air outlet opening 7 and is subjected to the force F r individually by one of the two servomotors 6, the direction of action of the forces F r , in contrast to that of the forces F r in the embodiment according to FIG. 2, in the Attacks the center of the respective support plate 5 and is directed exactly radially to the central axis of the winding roll 2.

Bei beiden Ausführungsbeispielen sind die Stellmotoren 6 einerseits mit ihrer Kolbenstange an der Stützplatte 5 und andererseits an einem ortsfesten Gestell angelenkt. Ferner wirkt der Wickelradius als Führungsgröße für die Verstellung der Stützplatte(n) 5 durch die Stellmotoren 6 in einer Lageregeleinrichtung.In both exemplary embodiments, the servomotors 6 are articulated on the one hand with their piston rod on the support plate 5 and on the other hand on a stationary frame. Furthermore, the winding radius acts as a reference variable for the adjustment of the support plate (s) 5 by the servomotors 6 in a position control device.

Bei beiden Ausführungsbeispielen können allerdings auch leichte Abweichungen von einem bei jedem Wickelradius genau konzentrischen Spalt 8 auftreten.In both exemplary embodiments, however, slight deviations from a gap 8 which is exactly concentric with each winding radius can also occur.

Während sich die Stützplatte 5 bei dem Ausführungsbeispiel nach Fig. 2 eventuell nicht ganz genau kreisförmig biegen läßt, ergeben sich bei dem Ausführungsbeispiel nach Fig. 3 Änderungen der Spalte 8 in Abhängigkeit vom Wickelradius, wie es in den Fig. 4 und 5 dargestellt ist: Bei dem kleinsten Wickelradius Rmin nach Fig. 4 hat der Spalt 8 die kleinste Höhe hmin in der Mitte und die größte Höhe hmax an den Längsrändern. Bei dem größten Wickelradius Rmax nach Fig. 5 hat der Spalt 8 dagegen die größte Höhe hmax in der Mitte und die kleinste Höhe hmin an den Rändern. Die Spalthöhe oder -weite ändert sich mithin um den Betrag h = h max -h min

Figure imgb0001
, da die Stützplatte 5 bei dem Ausführungsbeispiel nach den Fig. 3 bis 5 nicht biegeelastisch ist und nicht an beiden Längsrändern abgestützt wird.While the support plate 5 in the exemplary embodiment according to FIG. 2 may not be able to be bent exactly circularly, in the exemplary embodiment according to FIG. 3 there are changes in column 8 as a function of the winding radius, as shown in FIGS. 4 and 5: With the smallest winding radius R min according to FIG. 4, the gap 8 has the smallest height h min in the middle and the largest height h max at the longitudinal edges. In contrast, with the largest winding radius R max according to FIG. 5, the gap 8 has the greatest height h max in the middle and the smallest height h min at the edges. The gap height or width therefore changes by the amount h = h Max -H min
Figure imgb0001
 , since the support plate 5 in the embodiment according to the Fig. 3 to 5 is not flexible and is not supported on both longitudinal edges.

Es ist jedoch möglich, sowohl bei nur einer Stützplatte 5 gemäß Fig. 2 als auch bei zwei Stützplatten 5 gemäß Fig. 3, eine Abwandlung gemäß Fig. 6 vorzusehen, bei der die einzige oder jede Stützplatte 5 an ihrer Unterseite in der Nähe jedes ihrer axialen Längsränder jeweils einen nach unten vorstehenden Vorsprung 9 aufweist und zwischen den Enden der Vorsprünge 9 ein Stellmotor 10 gelenkig befestigt ist, durch den auf jene Enden eine tangentiale Kraft Ft ausübbar ist, die eine derartige Verbiegung der Stützplatte 5 bewirkt, daß der Krümmungsradius ihrer Oberseite dem augenblicklichen Radius R des Wickels 4 auf der Wickelrolle 2 entspricht. Auch kann hier für die bzw. jede Stützplatte 5 nur ein Stellmotor 6 vorgesehen sein, dessen radiale Kraft Fr in der Mitte der Stützplatte 5 angreift, während durch die tangentiale Kraft Ft des Linear-Stellmotors 10 ein Biegemoment M = F t ·a

Figure imgb0002
, wobei a der Hebelarm bzw. etwa die radiale Länge der Vorsprünge 9 ist, auf die Stützplatte 5 ausgeübt wird, das selbsttätig etwa umgekehrt proportional zum Wickelradius R eingestellt wird und eine kreisbogenförmige Verbiegung der Stützplatte 5 bewirkt. Auf diese Weise ist es möglich, den Spalt 8 bei allen Wickelradien R konzentrisch zur Achse der Wickelrolle 2 einzustellen und somit eine wesentliche Verringerung der mittleren Spalthöhe zu erreichen. Dies hat den Vorteil, daß der Luftverbrauch minimiert wird.However, it is possible to provide a modification according to FIG. 6 in which only one support plate 5 according to FIG. 2 and two support plates 5 according to FIG. 3, in which the single or each support plate 5 on its underside in the vicinity of each of them Axial longitudinal edges each have a downwardly projecting projection 9 and a servomotor 10 is articulated between the ends of the projections 9, by which a tangential force F t can be exerted on those ends, which causes such a bending of the support plate 5 that the radius of curvature of their Top corresponds to the current radius R of the winding 4 on the winding roll 2. Also, only one servomotor 6 can be provided for the or each support plate 5, the radial force F r of which acts in the center of the support plate 5, while a bending moment is caused by the tangential force F t of the linear servomotor 10 M = F t · A
Figure imgb0002
 , where a is the lever arm or approximately the radial length of the projections 9, is exerted on the support plate 5, which is automatically set approximately inversely proportional to the winding radius R and causes an arcuate bending of the support plate 5. In this way it is possible to set the gap 8 concentrically to the axis of the winding roll 2 for all winding radii R and thus to achieve a substantial reduction in the average gap height. This has the advantage that the air consumption is minimized.

Sodann ergibt sich bei der Wickelvorrichtung nach Fig. 6 eine klare Trennung zwischen der Stützkraftregelung und der Spaltformregelung, wobei der Wickelradius R die Führungsgröße für beide Regelvorgänge ist.Then there is a clear separation between the support force control and the gap shape control in the winding device according to FIG. 6, the winding radius R being the reference variable for both control processes.

Claims (5)

Wickelvorrichtung mit einer Wickelrolle (2) für bahnförmiges Material (1), insbesondere Papier, einer einer Durchbiegung der Wickelrolle (2) von unten entgegenwirkenden Stützeinrichtung (5, 6), die ein Druckluftkissen zwischen der Stützeinrichtung(5, 6) und der Wickelrolle (2) erzeugt, dadurch gekennzeichnet, daß die Stützeinrichtung (5, 6) wenigstens eine Stützplatte (5) mit einer der Kontur der Unterseite der Wickelrolle (2) weitgehend angepaßten Oberseite aufweist, in der wenigstens eine Druckluftaustrittsöffnung (7) ausgebildet ist, daß die Druckluft durch einen Spalt (8) zwischen der Wickelrolle (2) und der Stützplatte (5) austreten kann und daß die Stützplatte (5) radial zur Wickelrolle (2) in Abhängigkeit vom Wickeldurchmesser selbsttätig verstellbar ist und sich dabei der Wickelrollenkontur anpaßt.Winding device with a winding roll (2) for web-like material (1), in particular paper, a support device (5, 6) counteracting a deflection of the winding roll (2) from below, which supports a compressed air cushion between the support device (5, 6) and the winding roll ( 2), characterized in that the support device (5, 6) has at least one support plate (5) with a top surface largely adapted to the contour of the underside of the winding roll (2), in which at least one compressed air outlet opening (7) is formed, that the Compressed air can escape through a gap (8) between the winding roll (2) and the support plate (5) and that the support plate (5) is automatically adjustable radially to the winding roll (2) depending on the winding diameter and adapts to the winding roll contour. Wickelvorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Stützplatte (5) biegeelastisch ist.Winding device according to claim 1, characterized in that the support plate (5) is flexible. Wickelvorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß die Stützplatte (5) an ihrer Unterseite in der Nähe jedes ihrer axialen Längsränder über einen jeweils daran gelenkig befestigten Stellmotor (6) abgestützt wird, durch die (6) auf jene Längsränder jeweils eine Kraft (Fr) ausübbar ist, wobei durch die axiale Verstellung der Stellmotoren (6) und der dadurch bewirkten Höhenverstellung der Stützplatte (5) eine derartige Verbiegung der Stützplatte (5) erfolgt, daß der Krümmungsradius ihrer Oberseite dem augenblicklichen Radius (R) des Wickels (4) auf der Wickelrolle (2) entspricht.Winding device according to Claim 2, characterized in that the support plate (5) is fastened on its underside in the vicinity of each of its axial longitudinal edges by means of an articulation thereon Servomotor (6) is supported, by which (6) a force (F r ) can be exerted on each of the longitudinal edges, the axial displacement of the servomotors (6) and the resulting height adjustment of the support plate (5) causing such a bending of the support plate (5) that the radius of curvature of its top corresponds to the instantaneous radius (R) of the winding (4) on the winding roll (2). Wickelvorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Stützplatten (5) jeweils an ihrer Unterseite über einen daran gelenkig befestigten Stellmotor (6) frei verschwenkbar abgestützt werden, durch die (6) jeweils eine Kraft (Fr) ausübbar ist, wobei durch die axiale Verstellung der Stellmotoren (6) und der dadurch bewirkten Höhenverstellung der Stützplatten (5) eine derartige Positionierung der Stützplatten (5) gewährleistet ist, daß der Krümmungsradius ihrer Oberseiten dem augenblicklichen Radius (R) des Wickels (4) auf der Wickelrolle (2) entspricht.Winding device according to claim 1 or 2, characterized in that the supporting plates (5) are each pivotally supported on their underside by means of a servomotor (6) articulated thereon, by means of which (6) a force (F r ) can be exerted, whereby the axial adjustment of the servomotors (6) and the resulting height adjustment of the support plates (5) ensures that the support plates (5) are positioned in such a way that the radius of curvature of their upper sides corresponds to the current radius (R) of the roll (4) on the winding roll ( 2) corresponds. Wickelvorrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Stützplatte(n) (5) an ihrer Unterseite in der Nähe jedes ihrer axialen Längsränder jeweils einen nach unten vorstehenden Vorsprung (9) aufweist oder aufweisen und an den Vorsprüngen (9) (je)der Stützplatte ein Stellmotor (10) gelenkig befestigt ist, durch den auf jene Vorsprünge (9) eine Kraft (Ft) ausübbar ist, die eine derartige Verbiegung der Stützplatte (5) bewirkt, daß der Krümmungsradius ihrer Oberseite dem augenblicklichen Radius (R) des Wickels (4) auf der Wickelrolle (2) entspricht.Winding device according to one of Claims 1 to 4, characterized in that the support plate (s) (5) has or have a downwardly projecting projection (9) on its underside in the vicinity of each of its axial longitudinal edges and on the projections (9) (each) of the support plate, an actuator (10) is articulated, by which a force (F t ) can be exerted on those projections (9), which causes the support plate (5) to bend in such a way that the radius of curvature of its upper side corresponds to the current radius (R) of the winding (4) on the winding roller (2) corresponds.
EP95110989A 1994-08-06 1995-07-13 Winding device with a winding roll for material in web form Expired - Lifetime EP0695708B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4427877A DE4427877C1 (en) 1994-08-06 1994-08-06 Winding device with a winding roll for web-like material
DE4427877 1994-08-06

Publications (3)

Publication Number Publication Date
EP0695708A2 true EP0695708A2 (en) 1996-02-07
EP0695708A3 EP0695708A3 (en) 1997-01-22
EP0695708B1 EP0695708B1 (en) 1998-10-14

Family

ID=6525081

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95110989A Expired - Lifetime EP0695708B1 (en) 1994-08-06 1995-07-13 Winding device with a winding roll for material in web form

Country Status (7)

Country Link
US (1) US5647555A (en)
EP (1) EP0695708B1 (en)
JP (1) JP2592589B2 (en)
AT (1) ATE172168T1 (en)
CA (1) CA2154503C (en)
DE (2) DE4427877C1 (en)
FI (1) FI116894B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0890537A1 (en) * 1997-07-10 1999-01-13 Voith Sulzer Finishing GmbH Reel winding device, in particular for reel slitting device

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19635216A1 (en) * 1996-08-30 1998-03-05 Voith Sulzer Papiermasch Gmbh Method and device for winding a paper web into a roll
DE19750539C1 (en) * 1997-11-14 1999-07-15 Voith Sulzer Finishing Gmbh Winding device and winding method, in particular for a slitter winder
DE19811093A1 (en) * 1998-03-13 1999-09-16 Voith Sulzer Papiertech Patent Roll winding device
FI981210A (en) * 1998-05-29 1999-11-30 Valmet Corp Method and apparatus for supporting a roll
DE19833082B4 (en) * 1998-07-23 2004-04-08 Voith Paper Patent Gmbh Reel winding device
FI126174B (en) 2012-12-04 2016-07-29 Valmet Automation Oy Measurement of tissue paper
ITUA20162061A1 (en) * 2016-03-07 2017-09-07 Durst Phototechnik Digital Tech Gmbh Device for unwinding or wrapping a sheet of material from / to a reel

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3639244A1 (en) 1985-11-20 1987-05-21 Waertsilae Oy Ab ROLLING DEVICE FOR MOVING RAILWAYS
DE4026597A1 (en) 1990-08-23 1992-02-27 Jagenberg Ag Web winder for paper large dia. rolls - has seals round winding roll and carrier rollers to build=up overpressure to support increasing wound wt.
DE4201815A1 (en) 1992-01-24 1993-07-29 Jagenberg Ag METHOD AND MACHINE FOR WINDING A PAPER OR CARDBOARD

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2920838A (en) * 1956-11-01 1960-01-12 United Eng Foundry Co Strip coiling apparatus
US3515183A (en) * 1968-08-14 1970-06-02 Purex Corp Ltd Winders for paper machines
US3497151A (en) * 1968-08-14 1970-02-24 Ontario Paper Co Ltd Paper machine winder
US3920136A (en) * 1974-07-15 1975-11-18 Westvaco Corp Air cushion unwind support for reeled sheet
DE3224879A1 (en) * 1981-07-08 1983-03-03 Ishikawajima-Harima Jukogyo K.K., Tokyo WRAPPING MACHINE
DE3225872A1 (en) * 1981-07-11 1983-04-21 Bartholomy & Co, 516O Düren Device for storing and/or for moving cylindrical objects
DE3729448A1 (en) * 1987-09-03 1989-03-16 Hoechst Ag Process and device for the layer-by-layer winding of a flat material web
FI100099B (en) * 1988-11-17 1997-09-30 Valmet Paper Machinery Inc Method and apparatus for winding a paper web
US5150850A (en) * 1991-05-10 1992-09-29 Beloit Corporation Method for winding a traveling web on a belted two drum wound web roll winder

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3639244A1 (en) 1985-11-20 1987-05-21 Waertsilae Oy Ab ROLLING DEVICE FOR MOVING RAILWAYS
DE4026597A1 (en) 1990-08-23 1992-02-27 Jagenberg Ag Web winder for paper large dia. rolls - has seals round winding roll and carrier rollers to build=up overpressure to support increasing wound wt.
DE4201815A1 (en) 1992-01-24 1993-07-29 Jagenberg Ag METHOD AND MACHINE FOR WINDING A PAPER OR CARDBOARD

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0890537A1 (en) * 1997-07-10 1999-01-13 Voith Sulzer Finishing GmbH Reel winding device, in particular for reel slitting device
US5988560A (en) * 1997-07-10 1999-11-23 Voith Sulzer Finishing Gmbh Roll winding device and process

Also Published As

Publication number Publication date
EP0695708B1 (en) 1998-10-14
CA2154503A1 (en) 1996-02-07
JP2592589B2 (en) 1997-03-19
JPH0859034A (en) 1996-03-05
FI116894B (en) 2006-03-31
FI953689A (en) 1996-02-07
FI953689A0 (en) 1995-08-02
US5647555A (en) 1997-07-15
CA2154503C (en) 1998-11-03
DE59503911D1 (en) 1998-11-19
EP0695708A3 (en) 1997-01-22
ATE172168T1 (en) 1998-10-15
DE4427877C1 (en) 1996-03-14

Similar Documents

Publication Publication Date Title
DE3426899A1 (en) DEVICE FOR CROSS-DRAWING A RUNNING TRAIN
AT401922B (en) WINDING MACHINE FOR SHAPED GOODS, IN PARTICULAR PAPER
DE3019001A1 (en) DEVICE FOR REGULATING THE TENSION OF A MOVING TAPE
DE19513143C2 (en) Winding machine for winding a running web, in particular a paper web, into a roll
EP0629499B1 (en) Inlet of paper strips in a former for longitudinal folding
DE4013656C2 (en) Device for splicing webs, in particular paper webs for the production of corrugated cardboard
DE3634198C2 (en)
EP0695708A2 (en) Winding device with a winding roll for material in web form
DE3221929C2 (en) Double drum winding machine
WO1993015007A1 (en) Process and machine for winding a paper or cardboard web
EP0810969B1 (en) Curl-suppressing device for paper processing machines
EP0916603B1 (en) Winding machine and method, especially for a slitter
EP1415944A1 (en) Apparatus for the adjustment of pressing rollers and/or cutting blades in folding machines
EP0519261B1 (en) Device for guiding a laterally stable web
EP1086916B1 (en) Bearing unit for draw rollers of material webs
DE19524905A1 (en) Coiling machine with support rolls for winding webs of material, especially paper or cardboard - has movably mounted support rollers with gap between under which is air receiver with compressed air inflow and outlet
WO1990008089A1 (en) Device for longitudinal division of a band and for winding the strips of the subdivided band
EP0933320B1 (en) Reel winder
EP0421232A1 (en) Method and device for winding a foil web
EP2082982B1 (en) Coiling device
DE2130020B2 (en) Beam machine
EP0896941B1 (en) Winding apparatus
DE2800262C3 (en) Device for pulling off a flattened tubular film web made of plastic
DE1281030B (en) Device for guiding, winding and pressing the wires when making windings of electrical devices
WO2002079061A1 (en) Winding machine for rolling up a strip of material, especially a paper or cardboard strip, into rolls

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT DE FR GB IT NL SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT DE FR GB IT NL SE

17P Request for examination filed

Effective date: 19961220

17Q First examination report despatched

Effective date: 19970307

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT DE FR GB IT NL SE

REF Corresponds to:

Ref document number: 172168

Country of ref document: AT

Date of ref document: 19981015

Kind code of ref document: T

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19981014

ET Fr: translation filed
REF Corresponds to:

Ref document number: 59503911

Country of ref document: DE

Date of ref document: 19981119

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20020719

Year of fee payment: 8

Ref country code: AT

Payment date: 20020719

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20020723

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20030623

Year of fee payment: 9

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030713

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20040201

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20040331

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 20040201

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20040713

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20040713

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20110722

Year of fee payment: 17

Ref country code: DE

Payment date: 20110722

Year of fee payment: 17

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20110726

Year of fee payment: 17

REG Reference to a national code

Ref country code: SE

Ref legal event code: EUG

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130201

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120714

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 59503911

Country of ref document: DE

Effective date: 20130201

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120713