WO2003059795A1 - Roll system, particularly a contact roll system of a winding machine - Google Patents

Roll system, particularly a contact roll system of a winding machine Download PDF

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Publication number
WO2003059795A1
WO2003059795A1 PCT/EP2002/014551 EP0214551W WO03059795A1 WO 2003059795 A1 WO2003059795 A1 WO 2003059795A1 EP 0214551 W EP0214551 W EP 0214551W WO 03059795 A1 WO03059795 A1 WO 03059795A1
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WO
WIPO (PCT)
Prior art keywords
roller
winding
bearing
bearing plate
segments
Prior art date
Application number
PCT/EP2002/014551
Other languages
German (de)
French (fr)
Inventor
Uwe Fischer
Armin Hutzenlaub
Original Assignee
Kampf Gmbh & Co. Maschinenfabrik
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 Kampf Gmbh & Co. Maschinenfabrik filed Critical Kampf Gmbh & Co. Maschinenfabrik
Priority to EP02790490A priority Critical patent/EP1465827A1/en
Priority to JP2003559914A priority patent/JP2005514297A/en
Priority to US10/501,961 priority patent/US20050087648A1/en
Publication of WO2003059795A1 publication Critical patent/WO2003059795A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H18/00—Winding webs
    • B65H18/08—Web-winding mechanisms
    • B65H18/26—Mechanisms for controlling contact pressure on winding-web package, e.g. for regulating the quantity of air between web layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/41—Winding, unwinding
    • B65H2301/414—Winding
    • B65H2301/4148—Winding slitting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/10—Rollers
    • B65H2404/13—Details of longitudinal profile
    • B65H2404/132—Details of longitudinal profile arrangement of segments along axis
    • B65H2404/1321—Segments juxtaposed along axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/40—Shafts, cylinders, drums, spindles
    • B65H2404/43—Rider roll construction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2601/00—Problem to be solved or advantage achieved
    • B65H2601/20—Avoiding or preventing undesirable effects
    • B65H2601/21—Dynamic air effects
    • B65H2601/211—Entrapping air in or under the material

Definitions

  • Roller system in particular contact roller system of a winding machine
  • the invention relates to a roller system, in particular a contact roller system, a winding machine with a plurality of roller segments which are freely rotatably mounted side by side and movable perpendicular to their axis of rotation, and a winding machine for winding a running material web, in particular a paper web or plastic film, which contains the roller system as a contact roller system ,
  • contact rollers are known to be used as pressure rollers or squeeze rollers, in order to largely prevent the ingress of air into the winding rollers, particularly at high winding speeds. If the winding machine divides material webs divided by longitudinal cuts into winding rolls that are held with aligned sleeves during winding, then the contact rolls for each winding roll must be individually movable in order to compensate for unavoidable differences in diameter of the winding rolls. The axial length of a contact roller must be equal to or greater than the width of the winding roll against which it is pressed.
  • Each frame of a roller segment contains two lateral bearing plates which extend parallel to their end faces, the adjacent bearing plates of two roller segments being arranged one above the other perpendicular to the direction of movement.
  • the bearing plates have deep annular grooves in which the end faces of the roller segments can rotate without contact. This arrangement enables each Press the roller segment individually against a winding roller and at the same time keep the gap between two adjacent roller segments very small to avoid markings on the winding rollers.
  • the invention has for its object to simplify the construction of a generic roller system.
  • roller segments are each only supported on one end face on a bearing journal which is attached to a bearing plate which can be moved perpendicularly to the axis of rotation.
  • two roller segments are held by a common bearing plate with protruding bearing pins on both sides.
  • annular groove is incorporated in at least one inside of each bearing plate, in which the end of a roller segment can rotate without contact.
  • FIG. 1 shows the side view of a contact roller system according to the invention
  • FIG. 2 shows a section of a cross section through a first embodiment, in which two roller segments are held by a common plate
  • Figure 3 is a plan view of the contact roller system of Figure 2 and
  • Figure 4 shows a cross section through a second embodiment, in which each bearing plate carries only one roller segment.
  • the contact roller system shown in the figures is part of a winding machine for winding a running material web 1, in particular a paper web or plastic film.
  • the material webs 1, which are divided by longitudinal cuts, are wound onto cores to form winding rolls 2.
  • the winding rolls 2 are held during winding by a common winding axis or by two retractable clamping heads.
  • the winding machine has a contact roller system, which is described in more detail below.
  • the contact roller system contains a row of roller segments 3 arranged side by side, the axial length of which is less than the minimum width of a winding roller 2.
  • the length of a roller segment 3 is 50 mm - 150 mm.
  • Each roller segment 3 is mounted either individually or as a pair such that it can be moved together with a second roller segment perpendicular to its axis of rotation 4.
  • a single roller segment 3 or a pair of two roller segments 3.1, 3.2 can thus be pressed against a winding roller 2 independently of the other roller segments 3, so that differences in diameter in the winding rollers 2 can be compensated for.
  • Each roller segment 3 is overhung only on one end face on a bearing journal 5 which is fastened to a bearing plate 6 in a projecting manner.
  • the bearing plates 6 can be moved perpendicular to the axis of rotation 4 of the roller segments 3, preferably in each case by means of their own drive.
  • the bearing plates 6 are slidably mounted back and forth to the winding roll 2.
  • they have a leg 7 on their rear side facing away from the winding rollers 2, with which they are slidably mounted in a linear guide 8, preferably a ball guide.
  • the linear guides 8 are fastened on a crossbar 9, which extends over the working width of the winding machine. So are all the bearing plates 6 with those of them held roller segments 3 mounted on the common crossbar 9.
  • a pneumatic piston-cylinder unit 10 serves as the drive for the displacement movement, which is fastened on the one hand to a support plate 11 fastened to the crossbar 9 and on the other hand to the rear of the bearing plate 6.
  • the bearing plates 6 can also be movably mounted on an arcuate path perpendicular to the axis of rotation 4.
  • the bearing plates 6 can then be pivoted to a limited extent, for example each on a rocker.
  • each bearing plate 6 ends on its side opposite the fastening end with a small distance behind the bearing journal 5 attached to it. This leads to the fact that a roller segment 3 emerges circumferentially over the region of the bearing plate 6. The area of the contact point to the winding roll 2 is thus kept free. A material web 1 running towards the winding roll 2 can thus be guided so that it first contacts a roller segment 3 and then the winding roll 2. This has advantages in terms of winding technology.
  • bearing plates 6 which are correspondingly bevelled at their ends, the wrap angle of the web 1 around a roller segment 3 can be set independently of the winding direction and symmetrically for both possible winding directions.
  • the wrap angle of the web 1 on a roller segment 3 is 5 ° -30 °, preferably between 8 ° and 20 °, in order to promote the escape of the air adhering to the web 1.
  • Each roller segment 3 consists of an annular roller jacket 13 made of metal, on which an outer running layer 14 made of rubber is applied. At least in an inside of each bearing plate 6, an annular groove 15 is incorporated concentrically around the bearing pin 5. The curvature and the extent of the annular groove 15 is selected so that the correspondingly protruding end of a roller segment 3 can rotate in the annular groove 15 without contact.
  • the wall 16 remaining at the bottom of the groove 15 is designed to be extremely thin since it defines the minimum distance between two adjacent roller segments 3.
  • the thickness of the wall 16 is preferably 1 mm or less. The assembly takes place in such a way that the axial free space between the end faces of a roller segment 3 and the wall 16 is 0.2 mm - 2 mm, preferably approximately 0.3 mm.
  • the strength required to support a roller segment 3 is given, since each bearing plate 6 is designed that the bending line also runs through thickened areas outside the groove 15.
  • the annular groove 15 makes it possible to keep the required gap between two adjacent roller segments 3 very small. In order to prevent markings on sensitive webs 1, the gap is less than 5 mm, preferably between 0.8 mm and 3 mm.
  • each bearing plate 6 has on each side a protruding bearing journal 5.1, 5.2 with a roller bearing 12, on which a roller segment 3.1, 3.2 is freely rotatable.
  • the bearing plates 6 each have an annular groove 15.1, 15.2 on both sides, in each of which the end of one of the two roller segments 3.1, 3.2 held by the bearing plate 6 rotates.
  • FIG. 4 shows an embodiment of the invention in which each bearing plate has only one protruding bearing journal 5, on which a roller segment 3 is mounted.
  • the bearing pins 5 each have a flange with which they are screwed to a bearing plate 6.
  • the bearing plate 6 has an annular groove 15 on only one inside, while the rear is designed as a flat surface perpendicular to the axis of rotation 4.
  • the bearing pins 5 and the annular grooves 15 are each arranged on the same side of the bearing plates 6, so that the free end of a roller segment 3 ends at a short distance in front of the rear wall of the adjacent bearing plate 6.
  • the thickness of the wall 16 at the base of the groove 15 determines the minimum distance between two roller segments 3. Since the bearing plate 6 has an annular groove 15 on only one side, it is easier to manufacture.
  • two roller segments 3.1, 3.2 are mounted on both sides of a common bearing plate 6.
  • the bearing plate 6 is only provided with an annular groove 15 on one side.
  • the second bearing journal 5.2, which carries the second roller segment 3.2, is fastened to the rear wall without a groove.
  • this embodiment has the advantage of the embodiment according to FIG. 2, namely only one bearing plate 6 for each two roller segments 3.1, 3.2.
  • it contains the easier-to-manufacture bearing plate 6 according to FIG. 4, which has an annular groove 15 on only one side.
  • two adjacent bearing plates 6 and thus the roller segments 3 held by them can be mechanically coupled to one another in such a way that the axes of rotation 4 of the roller segments 3 are exactly aligned.
  • the coupled roller segments 3 form a rigid pressure roller which is pressed against a winding roller 2 with the same pressure.
  • the contact line of all coupled roller segments 3 forms an exact straight line.
  • a coupling of two adjacent roller segments 3 is advantageous if, due to large thickness tolerances in the webs 1, winding rollers 2 are wound with zones with widely differing diameters. Then it is undesirable for each roller segment 3 or each pair of roller segments 3.1, 3.2 to adapt to the current diameter in its contact zone.
  • a coupling of two adjacent roller segments 3 can be advantageous if a roller segment 3 with too great an axial length protrudes over a winding roller 2 and thus concentrates its separate adjustment force on the adjacent length.
  • Switchable latches 17 are preferably used as coupling elements, which - as indicated in FIG. 1 - are fastened to the legs 7 of a bearing plate 6 such that they can move parallel to the axis of rotation 4.
  • the latches 17 - for example actuated by magnets or air cylinders - engage with their end in corresponding openings in the leg 7 of the adjacent bearing plate 6.

Abstract

In winding machines, known roll systems are used that contain a number of freely rotatable roll segments (3), which are situated next to one another face to face and mounted in a manner that enables them to move perpendicular to their rotation axis (4). According to the invention, the roll segments (3) are mounted so that only one respective face is mounted on a bearing journal (5), which is fastened in an interspaced manner to a bearing plate (6) that can move perpendicular to the rotation axis (4). An annular slot (15) is fashioned in at least one inner side of each bearing plate (6), and the end of a roll segment (3) can rotate without touching inside this annular slot.

Description

B E S C H R E I B U N G DESCRIPTION
Walzensystem, insbesondere Kontaktwalzensystem einer WickelmaschineRoller system, in particular contact roller system of a winding machine
Technisches GebietTechnical field
Die Erfindung betrifft ein Walzensystem, insbesondere ein Kontaktwalzensystem, einer Wickelmaschine mit mehreren, Stirnseite an Stirnseite nebeneinander frei drehbar und senkrecht zu ihrer Drehachse bewegbar gelagerten Walzensegmenten und eine Wickelmaschine zum Aufwickeln einer laufenden Materialbahn, insbesondere einer Papierbahn oder Kunststoffolie, die das Walzensystem als Kontaktwalzensystem enthält.The invention relates to a roller system, in particular a contact roller system, a winding machine with a plurality of roller segments which are freely rotatably mounted side by side and movable perpendicular to their axis of rotation, and a winding machine for winding a running material web, in particular a paper web or plastic film, which contains the roller system as a contact roller system ,
Stand der TechnikState of the art
In Wickelmaschinen zum Aufwickeln von laufenden Warenbahnen, beispielsweise Papierbahnen oder Kunststoffolien, werden bekannterweise Kontaktwalzen als Andruck- oder Abquetschwalzen verwendet, um insbesondere bei hohen Wickelgeschwindigkeiten das Eindringen von Luft in die Wickelrollen weitgehend zu verhindern. Werden mit der Wickelmaschine durch Längsschnitte unterteilte Warenbahnen zu Wickelrollen aufgewickelt, die beim Aufwickeln mit fluchtenden Hülsen gehalten werden, dann müssen die Kontaktwalzen für jede Wickelrolle einzeln beweglich sein, um unvermeidbare Durchmesserunterschiede der Wickelrollen auszugleichen. Die axiale Länge einer Kontaktwalze muß dabei gleich oder größer sein als die Breite der Wickelrolle, gegen die sie angedrückt wird.In winding machines for winding running webs of material, for example paper webs or plastic films, contact rollers are known to be used as pressure rollers or squeeze rollers, in order to largely prevent the ingress of air into the winding rollers, particularly at high winding speeds. If the winding machine divides material webs divided by longitudinal cuts into winding rolls that are held with aligned sleeves during winding, then the contact rolls for each winding roll must be individually movable in order to compensate for unavoidable differences in diameter of the winding rolls. The axial length of a contact roller must be equal to or greater than the width of the winding roll against which it is pressed.
Aus der DE 198 05 412-A1 und der DE 198 48 532-A1 ist ein vorteilhaftes Walzensy- stem der gattungsgemäßen Art bekannt, bei dem jedes Walzensegment von einemAn advantageous roller system of the generic type is known from DE 198 05 412-A1 and DE 198 48 532-A1, in which each roller segment is composed of one
Rahmen gehalten wird, der senkrecht zur Drehachse bewegbar gelagert ist. Jeder Rahmen eines Walzensegments enthält zwei sich parallel zu deren Stirnseiten erstreckende seitliche Lagerplatten, wobei die benachbarten Lagerplatten zweier Walzensegmente senkrecht zur Bewegungsrichtung übereinander angeordnet sind. Die Lagerplatten weisen tiefe Ringnuten auf, in denen die Stirnflächen der Walzensegmente berührungslos rotieren können. Diese Anordnung ermöglicht es, jedes Walzensegment individuell gegen eine Wickelrolle anzudrücken und zugleich den Spalt zwischen zwei benachbarten Walzensegmenten zur Vermeidung von Markierungen auf den Wickelrollen sehr gering zu halten.Frame is held, which is mounted movable perpendicular to the axis of rotation. Each frame of a roller segment contains two lateral bearing plates which extend parallel to their end faces, the adjacent bearing plates of two roller segments being arranged one above the other perpendicular to the direction of movement. The bearing plates have deep annular grooves in which the end faces of the roller segments can rotate without contact. This arrangement enables each Press the roller segment individually against a winding roller and at the same time keep the gap between two adjacent roller segments very small to avoid markings on the winding rollers.
Darstellung der ErfindungPresentation of the invention
Der Erfindung liegt die Aufgabe zugrunde, ein gattungsgemäßes Walzensystem konstruktiv zu vereinfachen.The invention has for its object to simplify the construction of a generic roller system.
Diese Aufgabe wird dadurch gelöst, daß die Walzensegmente jeweils nur an einer Stirnseite an einem Lagerzapfen gelagert sind, der abstehend an einer senkrecht zur Drehachse bewegbaren Lagerplatte befestigt ist.This object is achieved in that the roller segments are each only supported on one end face on a bearing journal which is attached to a bearing plate which can be moved perpendicularly to the axis of rotation.
Bei der vorteilhaften Ausführungsform nach Patentanspruch 2 werden jeweils zwei Walzensegmente von einer gemeinsamen Lagerplatte mit beidseitig abstehenden Lagerzapfen gehalten.In the advantageous embodiment according to claim 2, two roller segments are held by a common bearing plate with protruding bearing pins on both sides.
Um den Abstand zwischen zwei Walzensegmenten möglichst gering gestalten zu können, ist bei der besonders vorteilhaften Ausführungsform nach Patentanspruch 3 in zumindest eine Innenseite jeder Lagerplatte eine Ringnut eingearbeitet, in der das Ende eines Walzensegments berührungslos rotieren kann.In order to make the distance between two roller segments as small as possible, in the particularly advantageous embodiment according to claim 3, an annular groove is incorporated in at least one inside of each bearing plate, in which the end of a roller segment can rotate without contact.
Die weiteren Unteransprüche enthalten bevorzugte, da besonders vorteilhafte Ausgestaltungen der Erfindung.The further subclaims contain preferred, since particularly advantageous, embodiments of the invention.
Kurze Beschreibung der ZeichnungBrief description of the drawing
Die Zeichnung dient zur Erläuterung der Erfindung anhand eines vereinfacht dargestellten Ausführungsbeispiels. Dabei zeigenThe drawing serves to explain the invention with reference to an embodiment shown in simplified form. Show
Figur 1 die Seitenansicht eines Kontaktwalzensystems nach der Erfindung,FIG. 1 shows the side view of a contact roller system according to the invention,
Figur 2 Ausschnittsweise einen Querschnitt durch eine erste Ausführungsform, bei der zwei Walzensegmente von einer gemeinsamen Platte gehalten wer- den, Figur 3 eine Draufsicht auf das Kontaktwalzensystem nach Figur 2 undFIG. 2 shows a section of a cross section through a first embodiment, in which two roller segments are held by a common plate, Figure 3 is a plan view of the contact roller system of Figure 2 and
Figur 4 einen Querschnitt durch eine zweite Ausführungsform, bei der jede Lagerplatte nur ein Walzensegment trägt.Figure 4 shows a cross section through a second embodiment, in which each bearing plate carries only one roller segment.
Wege zur Ausführung der ErfindungWays of Carrying Out the Invention
Das in den Figuren dargestellte Kontaktwalzensystem ist Bestandteil einer Wickelmaschine zum Aufwickeln einer laufenden Materialbahn 1, insbesondere einer Papier- bahn oder Kunststoffolie. Die durch Längsschnitte unterteilten Materialbahnen 1 werden auf Hülsen zu Wickelrollen 2 aufgewickelt. Die Wickelrollen 2 werden beim Aufwickeln von einer gemeinsamen Wickelachse oder jeweils von zwei in die Hülse eingefahrenen Spannköpfen gehalten. Um das Eindringen von Luft in die Wickelrollen 2 insbesondere bei hohen Aufwickelgeschwindigkeiten zu verhindern, weist die Wickelmaschine ein Kontaktwalzensystem auf, das nachfolgend näher beschrieben wird.The contact roller system shown in the figures is part of a winding machine for winding a running material web 1, in particular a paper web or plastic film. The material webs 1, which are divided by longitudinal cuts, are wound onto cores to form winding rolls 2. The winding rolls 2 are held during winding by a common winding axis or by two retractable clamping heads. In order to prevent air from entering the winding rollers 2, particularly at high winding speeds, the winding machine has a contact roller system, which is described in more detail below.
Das Kontaktwalzensystem enthält eine Reihe von Stirnseite an Stirnseite nebeneinander angeordneten Walzensegmenten 3, deren axiale Länge geringer ist als die minimale Breite einer Wickelrolle 2. Beim Ausführungsbeispiel beträgt die Länge eines Walzensegments 3 50 mm - 150 mm. Jedes Walzensegment 3 ist entweder einzeln oder als Paar gemeinsam mit einem zweiten Walzensegment senkrecht zu seiner Drehachse 4 bewegbar gelagert. Ein einzelnes Walzensegment 3 oder ein Paar von zwei Walzensegmenten 3.1 , 3.2 können somit unabhängig von den anderen Walzensegmenten 3 gegen eine Wickelrolle 2 gedrückt werden, damit Durchmesserunterschiede in den Wickelrollen 2 ausgeglichen werden können.The contact roller system contains a row of roller segments 3 arranged side by side, the axial length of which is less than the minimum width of a winding roller 2. In the exemplary embodiment, the length of a roller segment 3 is 50 mm - 150 mm. Each roller segment 3 is mounted either individually or as a pair such that it can be moved together with a second roller segment perpendicular to its axis of rotation 4. A single roller segment 3 or a pair of two roller segments 3.1, 3.2 can thus be pressed against a winding roller 2 independently of the other roller segments 3, so that differences in diameter in the winding rollers 2 can be compensated for.
Jedes Walzensegment 3 ist jeweils nur an einer Stirnseite an einem Lagerzapfen 5 fliegend gelagert, der abstehend an einer Lagerplatte 6 befestigt ist. Die Lagerplatten 6 sind senkrecht zur Drehachse 4 der Walzensegmente 3 bewegbar, bevorzugt jeweils mittels eines eigenen Antriebs. Im Ausführungsbeispiel sind die Lagerplatten 6 zur Wickelrolle 2 hin und zurück verschiebbar gelagert. Dazu weisen sie an ihrer den Wickelrollen 2 abgewandten Rückseite einen Schenkel 7 auf, mit der sie in einer Linearführung 8, vorzugsweise einer Kugelführung, verschiebbar gelagert sind. Die Linearführungen 8 sind auf einer Quertraverse 9 befestigt, die sich über die Arbeitsbreite der Wickelmaschine erstreckt. So sind alle Lagerplatten 6 mit den von ihnen gehaltenen Walzensegmenten 3 an der gemeinsamen Quertraverse 9 gelagert. Als Antrieb für die Verschiebebewegung dient eine pneumatische Kolben-Zylinder-Einheit 10, die einerseits an einer auf der Quertraverse 9 befestigten Stützplatte 11 , andererseits an der Rückseite der Lagerplatte 6 befestigt ist.Each roller segment 3 is overhung only on one end face on a bearing journal 5 which is fastened to a bearing plate 6 in a projecting manner. The bearing plates 6 can be moved perpendicular to the axis of rotation 4 of the roller segments 3, preferably in each case by means of their own drive. In the exemplary embodiment, the bearing plates 6 are slidably mounted back and forth to the winding roll 2. For this purpose, they have a leg 7 on their rear side facing away from the winding rollers 2, with which they are slidably mounted in a linear guide 8, preferably a ball guide. The linear guides 8 are fastened on a crossbar 9, which extends over the working width of the winding machine. So are all the bearing plates 6 with those of them held roller segments 3 mounted on the common crossbar 9. A pneumatic piston-cylinder unit 10 serves as the drive for the displacement movement, which is fastened on the one hand to a support plate 11 fastened to the crossbar 9 and on the other hand to the rear of the bearing plate 6.
Alternativ zu der in den Figuren dargestellten linearen Bewegbarkeit können die Lagerplatten 6 auch auf einer bogenförmigen Bahn senkrecht zur Drehachse 4 bewegbar gelagert sein. Die Lagerplatten 6 sind dann begrenzt schwenkbar, beispielsweise jeweils an einer Schwinge, gelagert.As an alternative to the linear mobility shown in the figures, the bearing plates 6 can also be movably mounted on an arcuate path perpendicular to the axis of rotation 4. The bearing plates 6 can then be pivoted to a limited extent, for example each on a rocker.
Wie aus der Seitenansicht in Figur 1 ersichtlich, endet jede Lagerplatte 6 an ihrer dem Befestigungsende entgegengesetzten Seite mit geringem Abstand hinter dem an ihr befestigten Lagerzapfen 5. Dies führt dazu, daß ein Walzensegment 3 umfänglich über den Bereich der Lagerplatte 6 hervor tritt. Der Bereich der Kontaktstelle zur Wickelrolle 2 wird so freigehalten. Eine der Wickelrolle 2 zulaufende Materialbahn 1 kann somit so geführt werden, daß sie zunächst ein Walzensegment 3 und dann die Wickelrolle 2 berührt. Dies hat wicklungstechnologische Vorteile. Durch an ihrem Ende entsprechend abgeschrägt gestaltete Lagerplatten 6 kann der Umschlingungswinkel der Bahn 1 um ein Walzensegment 3 unabhängig von der Aufwickelrichtung und symmetrisch für beide möglichen Aufwickelrichtungen eingestellt werden. DerAs can be seen from the side view in FIG. 1, each bearing plate 6 ends on its side opposite the fastening end with a small distance behind the bearing journal 5 attached to it. This leads to the fact that a roller segment 3 emerges circumferentially over the region of the bearing plate 6. The area of the contact point to the winding roll 2 is thus kept free. A material web 1 running towards the winding roll 2 can thus be guided so that it first contacts a roller segment 3 and then the winding roll 2. This has advantages in terms of winding technology. By means of bearing plates 6 which are correspondingly bevelled at their ends, the wrap angle of the web 1 around a roller segment 3 can be set independently of the winding direction and symmetrically for both possible winding directions. The
Umschlingungswinkel der Bahn 1 an einem Walzensegment 3 beträgt 5° - 30°, bevorzugt zwischen 8° und 20°, um das Entweichen der an der Bahn 1 anhaftenden Luft zu begünstigen.The wrap angle of the web 1 on a roller segment 3 is 5 ° -30 °, preferably between 8 ° and 20 °, in order to promote the escape of the air adhering to the web 1.
Jedes Walzensegment 3 besteht aus einem ringförmigen Walzenmantel 13 aus Metall, auf dem eine äußere Laufschicht 14 aus Gummi aufgetragen ist. Zumindest in eine Innenseite jeder Lagerplatte 6 ist eine Ringnut 15 konzentrisch um den Lagerzapfen 5 eingearbeitet. Die Krümmung und das Ausmaß der Ringnut 15 ist so gewählt, daß das entsprechend überstehend gestaltete Ende eines Walzensegments 3 berührungslos in der Ringnut 15 rotieren kann. Die am Grund der Nut 15 verbleibende Wand 16 ist extrem dünn gestaltet, da sie den minimalen Abstand zwischen zwei benachbarten Walzensegmenten 3 festlegt. Bevorzugt beträgt die Dicke der Wand 16 1 mm oder weniger. Der Zusammenbau erfolgt derart, daß der axiale Freiraum zwischen den Stirnflächen eines Walzensegments 3 und der Wand 16 0,2 mm - 2 mm, bevorzugt ca. 0,3 mm beträgt. Trotz der geringen Dicke der Wand 16 ist die erforderliche Festigkeit zum Tragen eines Walzensegments 3 gegeben, da jede Lagerplatte 6 so gestaltet ist, daß die Biegelinie auch durch verdickt gestaltete Bereiche außerhalb der Nut 15 verläuft. Die Ringnut 15 ermöglicht es, den erforderlichen Spalt zwischen zwei benachbarten Walzensegmenten 3 sehr gering zu halten. Um Markierungen auf empfindlichen Bahnen 1 zu verhindern, beträgt der Spalt weniger als 5 mm, bevorzugt beträgt er zwischen 0,8 mm und 3 mm.Each roller segment 3 consists of an annular roller jacket 13 made of metal, on which an outer running layer 14 made of rubber is applied. At least in an inside of each bearing plate 6, an annular groove 15 is incorporated concentrically around the bearing pin 5. The curvature and the extent of the annular groove 15 is selected so that the correspondingly protruding end of a roller segment 3 can rotate in the annular groove 15 without contact. The wall 16 remaining at the bottom of the groove 15 is designed to be extremely thin since it defines the minimum distance between two adjacent roller segments 3. The thickness of the wall 16 is preferably 1 mm or less. The assembly takes place in such a way that the axial free space between the end faces of a roller segment 3 and the wall 16 is 0.2 mm - 2 mm, preferably approximately 0.3 mm. Despite the small thickness of the wall 16, the strength required to support a roller segment 3 is given, since each bearing plate 6 is designed that the bending line also runs through thickened areas outside the groove 15. The annular groove 15 makes it possible to keep the required gap between two adjacent roller segments 3 very small. In order to prevent markings on sensitive webs 1, the gap is less than 5 mm, preferably between 0.8 mm and 3 mm.
Bei der Ausführungsform nach den Figuren 2 und 3 sind jeweils zwei Walzensegmente 3.1 , 3.2 an beiden Seiten einer gemeinsamen Lagerplatte 6 gelagert. Dazu weist jede Lagerplatte 6 an jeder Seite jeweils einen abstehenden Lagerzapfen 5.1 , 5.2 mit einem Wälzlager 12 auf, auf dem ein Walzensegement 3.1 , 3.2 frei drehbar gelagert ist. Die Lagerplatten 6 weisen an beiden Seiten jeweils eine Ringnut 15.1 , 15.2 auf, in denen jeweils das Ende eines der beiden von der Lagerplatte 6 gehaltenen Walzensegmente 3.1 , 3.2 rotiert.In the embodiment according to FIGS. 2 and 3, two roller segments 3.1, 3.2 are mounted on both sides of a common bearing plate 6. For this purpose, each bearing plate 6 has on each side a protruding bearing journal 5.1, 5.2 with a roller bearing 12, on which a roller segment 3.1, 3.2 is freely rotatable. The bearing plates 6 each have an annular groove 15.1, 15.2 on both sides, in each of which the end of one of the two roller segments 3.1, 3.2 held by the bearing plate 6 rotates.
In Figur 4 ist eine Ausführungsform der Erfindung dargestellt, bei der jede Lagerplatte nur einen abstehenden Lagerzapfen 5 aufweist, an dem ein Walzensegment 3 gelagert ist. Die Lagerzapfen 5 weisen jeweils einen Flansch auf, mit dem sie an einer Lagerplatte 6 festgeschraubt sind. Bei dieser Ausführungsform weist die Lagerplatte 6 nur an einer Innenseite eine Ringnut 15 auf, während die Rückseite als ebene, zur Drehachse 4 senkrechte Fläche gestaltet ist. Die Lagerzapfen 5 und die Ringnuten 15 sind jeweils an derselben Seite der Lagerplatten 6 angeordnet, so daß das freie Ende eines Walzensegments 3 mit geringem Abstand vor der Rückwand der benachbarten Lagerplatte 6 endet. Auch bei dieser Ausführungsform bestimmt die Dicke der Wand 16 am Grund der Nut 15 den minimalen Abstand zweier Walzensegmente 3 voneinander. Da die Lagerplatte 6 nur an einer Seite eine Ringnut 15 aufweist, ist sie einfacher zu fertigen.FIG. 4 shows an embodiment of the invention in which each bearing plate has only one protruding bearing journal 5, on which a roller segment 3 is mounted. The bearing pins 5 each have a flange with which they are screwed to a bearing plate 6. In this embodiment, the bearing plate 6 has an annular groove 15 on only one inside, while the rear is designed as a flat surface perpendicular to the axis of rotation 4. The bearing pins 5 and the annular grooves 15 are each arranged on the same side of the bearing plates 6, so that the free end of a roller segment 3 ends at a short distance in front of the rear wall of the adjacent bearing plate 6. In this embodiment too, the thickness of the wall 16 at the base of the groove 15 determines the minimum distance between two roller segments 3. Since the bearing plate 6 has an annular groove 15 on only one side, it is easier to manufacture.
Bei einer nicht dargestellten Ausführungsform sind ebenso wie bei der Ausführungsform nach Figur 2 jeweils zwei Walzensegmente 3.1 , 3.2 an beiden Seiten einer gemeinsamen Lagerplatte 6 gelagert. Die Lagerplatte 6 ist wie in der Ausführungsform nach Figur 4 dargestellt, nur an einer Seite mit einer Ringnut 15 versehen. An der Rückwand ohne Nut ist der zweite Lagerzapfen 5.2 befestigt, der das zweite Walzensegment 3.2 trägt. Diese Ausführungsform weist zum einen den Vorteil der Ausführungsform nach Figur 2 auf, nämlich nur eine Lagerplatte 6 für jeweils zwei Walzensegmente 3.1 , 3.2. Zum anderen enthält sie die einfacher zu fertigende Lagerplatte 6 nach Figur 4, die nur an einer Seite eine Ringnut 15 aufweist. Nach einer bevorzugten Ausführungsform können zwei benachbarte Lagerplatten 6 und somit die von ihnen gehaltenen Walzensegmente 3 mechanisch so aneinander gekuppelt werden, daß die Drehachsen 4 der Walzensegmente 3 exakt fluchten. Die miteinander gekuppelten Walzensegmente 3 bilden eine in sich starre Andruckwalze, die mit gleichem Druck gegen eine Wickelrolle 2 gedrückt wird. Die Kontaktlinie aller miteinander gekuppelten Walzensegmente 3 bildet eine exakte Gerade. Eine Kupplung zweier benachbarten Walzensegmente 3 ist dann vorteilhaft, wenn aufgrund großer Dickentoleranzen in den Bahnen 1 Wickelrollen 2 mit Zonen zu stark sich unterscheidenden Durchmessern gewickelt werden. Dann ist es unerwünscht, daß sich jedes Walzensegment 3 oder jedes Paar von Walzensegmenten 3.1 , 3.2 dem aktuellen Durchmesser in seiner Anliegezone anpaßt. Ebenso kann eine Kupplung zweier benachbarter Walzensegmente 3 vorteilhaft sein, wenn ein Walzensegment 3 mit zu großer axialer Länge über eine Wickelrolle 2 übersteht und somit seine getrennte Anpaßkraft auf die anliegende Länge konzentriert.In an embodiment not shown, just as in the embodiment according to FIG. 2, two roller segments 3.1, 3.2 are mounted on both sides of a common bearing plate 6. As shown in the embodiment according to FIG. 4, the bearing plate 6 is only provided with an annular groove 15 on one side. The second bearing journal 5.2, which carries the second roller segment 3.2, is fastened to the rear wall without a groove. On the one hand, this embodiment has the advantage of the embodiment according to FIG. 2, namely only one bearing plate 6 for each two roller segments 3.1, 3.2. On the other hand, it contains the easier-to-manufacture bearing plate 6 according to FIG. 4, which has an annular groove 15 on only one side. According to a preferred embodiment, two adjacent bearing plates 6 and thus the roller segments 3 held by them can be mechanically coupled to one another in such a way that the axes of rotation 4 of the roller segments 3 are exactly aligned. The coupled roller segments 3 form a rigid pressure roller which is pressed against a winding roller 2 with the same pressure. The contact line of all coupled roller segments 3 forms an exact straight line. A coupling of two adjacent roller segments 3 is advantageous if, due to large thickness tolerances in the webs 1, winding rollers 2 are wound with zones with widely differing diameters. Then it is undesirable for each roller segment 3 or each pair of roller segments 3.1, 3.2 to adapt to the current diameter in its contact zone. Likewise, a coupling of two adjacent roller segments 3 can be advantageous if a roller segment 3 with too great an axial length protrudes over a winding roller 2 and thus concentrates its separate adjustment force on the adjacent length.
Als Kupplungselemente werden bevorzugt schaltbare Riegel 17 verwendet, die - wie in Figur 1 angedeutet - parallel zur Drehachse 4 bewegbar an den Schenkel 7 einer Lagerplatte 6 befestigt sind. Die Riegel 17 rücken - beispielsweise von Magneten oder Luftzylinder betätigt - zum Ankuppeln mit ihrem Ende in entsprechende Öffnungen des Schenkels 7 der benachbarten Lagerplatte 6 ein. Switchable latches 17 are preferably used as coupling elements, which - as indicated in FIG. 1 - are fastened to the legs 7 of a bearing plate 6 such that they can move parallel to the axis of rotation 4. The latches 17 - for example actuated by magnets or air cylinders - engage with their end in corresponding openings in the leg 7 of the adjacent bearing plate 6.

Claims

P A T E N T A N S P R Ü C H E PATENT CLAIMS
1.1.
Walzensystem, insbesondere Kontaktwalzensystem, einer Wickelmaschine mit mehreren, Stirnseite an Stirnseite nebeneinander frei drehbar und senkrecht zu ihrer Drehachse (4) bewegbar gelagerten Walzensegmenten (3), dadurch gekennzeichnet, daß die Walzen-segmente (3) jeweils nur an einer Stirnseite an einem Lagerzapfen (5) gelagert sind, der abstehend an einer senkrecht zur Drehachse (4) bewegbaren Lagerplatte (6) befestigt ist, wobei in zumindest eine Innenseite jeder Lagerplatte (6) eine Ringnut (15) eingearbeitet ist, in der das Ende eines Walzensegments (3) berührungslos rotieren kann.Roller system, in particular contact roller system, of a winding machine with a plurality of roller segments (3) which can be freely rotated side by side and which can be moved perpendicularly to their axis of rotation (4), characterized in that the roller segments (3) each have only one end face on a bearing journal (5) are mounted, which protrudes from a bearing plate (6) that is movable perpendicular to the axis of rotation (4), an annular groove (15) being machined in at least one inside of each bearing plate (6), in which the end of a roller segment (3 ) can rotate without contact.
2.Second
Walzensystem nach Anspruch 1 , dadurch gekennzeichnet, daß jeweils zwei Walzensegmente (3.1 , 3.2) von einer gemeinsamen Lagerplatte (6) mit beidseitig abstehenden Lagerzapfen (5.1 , 5.2) gehalten werden.Roller system according to Claim 1, characterized in that two roller segments (3.1, 3.2) are held by a common bearing plate (6) with bearing pins (5.1, 5.2) projecting on both sides.
3.Third
Walzensystem nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Walzensegmente (3) senkrecht zur Drehachse (4) linear verschiebbar gelagert sind.Roller system according to claim 1 or 2, characterized in that the roller segments (3) are mounted so as to be linearly displaceable perpendicular to the axis of rotation (4).
4.4th
Walzensystem nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß dieRoll system according to one of claims 1 to 3, characterized in that the
Lagerplatten (6) senkrecht zur Drehachse (4) schwenkbar gelagert sind.Bearing plates (6) are pivotally mounted perpendicular to the axis of rotation (4).
5.5th
Walzensystem nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Lagerplatten (6) an einer gemeinsamen Quertraverse (9) gelagert sind und jeweils mittels eines eigenen Antriebs (10) senkrecht zur Drehachse (4) bewegbar sind.Roll system according to one of claims 1 to 4, characterized in that the bearing plates (6) are mounted on a common crossmember (9) and can each be moved perpendicularly to the axis of rotation (4) by means of their own drive (10).
6.6th
Wickelmaschine zum Aufwickeln einer laufenden Materialbahn (1 ), insbesondere einer Papierbahn oder Kunststoffolie, dadurch gekennzeichnet, daß sie ein Walzensystem gemäß den Ansprüchen 1 bis 6 als Kontaktwalzensystem enthält. Winding machine for winding a running material web (1), in particular a paper web or plastic film, characterized in that it contains a roller system according to claims 1 to 6 as a contact roller system.
PCT/EP2002/014551 2002-01-18 2002-12-19 Roll system, particularly a contact roll system of a winding machine WO2003059795A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP02790490A EP1465827A1 (en) 2002-01-18 2002-12-19 Roll system, particularly a contact roll system of a winding machine
JP2003559914A JP2005514297A (en) 2002-01-18 2002-12-19 Roller systems, especially contact roller systems for winders
US10/501,961 US20050087648A1 (en) 2002-01-18 2002-12-19 Roll system, particularly a contact roll system of a winding machine

Applications Claiming Priority (2)

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DE10202020A DE10202020A1 (en) 2002-01-18 2002-01-18 Roller system for a winding machine, comprises a number of roller segments which are held on a bearing attached to a bearing plate
DE10202020.5 2002-01-18

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EP (1) EP1465827A1 (en)
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DE102013200066A1 (en) * 2013-01-04 2014-07-10 Achenbach Buschhütten GmbH & Co. KG Winding station and method for its operation
DE102021208416A1 (en) 2021-08-03 2023-02-09 Osram Gmbh RESONANTLY OPERATED SWITCHED ISOLATION POWER CONVERTER AND METHOD OF DEEP DIMMING SUCH POWER CONVERTER

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DE19805412A1 (en) * 1998-02-11 1999-08-12 Kampf Gmbh & Co Maschf Contact roller system of a winding machine
DE19848532A1 (en) * 1998-10-21 2000-04-27 Kampf Gmbh & Co Maschf Contact roller preventing air inclusion during high speed winding of e.g. plastic or paper onto roll, includes narrow gaps for clearance-relieved levers and supports, assuring absence of marks on product
WO2000056647A1 (en) * 1999-03-22 2000-09-28 Metso Paper, Inc. Segmented roll
EP1270469A1 (en) * 2001-06-28 2003-01-02 WT Wickeltechnik GmbH Contact roller system of a winding machine for thin web material

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FI45589C (en) * 1969-04-29 1972-07-10 Ahlstroem Oy Movable roller combination
FI105464B (en) * 1996-06-10 2000-08-31 Valmet Corp Method and device for winding
FI99278C (en) * 1996-06-10 1998-04-27 Valmet Corp Adjustment method in rolling
DE19940665A1 (en) * 1999-08-27 2001-04-05 Voith Paper Patent Gmbh Roll winding device and winding method
DE10250863B4 (en) * 2002-10-31 2005-06-02 Brückner Maschinenbau GmbH Winding device for web-shaped materials, in particular plastic films

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Publication number Priority date Publication date Assignee Title
DE19805412A1 (en) * 1998-02-11 1999-08-12 Kampf Gmbh & Co Maschf Contact roller system of a winding machine
DE19848532A1 (en) * 1998-10-21 2000-04-27 Kampf Gmbh & Co Maschf Contact roller preventing air inclusion during high speed winding of e.g. plastic or paper onto roll, includes narrow gaps for clearance-relieved levers and supports, assuring absence of marks on product
WO2000056647A1 (en) * 1999-03-22 2000-09-28 Metso Paper, Inc. Segmented roll
EP1270469A1 (en) * 2001-06-28 2003-01-02 WT Wickeltechnik GmbH Contact roller system of a winding machine for thin web material

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