EP0925245A1 - Winding-up process and machine for winding up paper or cardboard webs - Google Patents

Winding-up process and machine for winding up paper or cardboard webs

Info

Publication number
EP0925245A1
EP0925245A1 EP97944802A EP97944802A EP0925245A1 EP 0925245 A1 EP0925245 A1 EP 0925245A1 EP 97944802 A EP97944802 A EP 97944802A EP 97944802 A EP97944802 A EP 97944802A EP 0925245 A1 EP0925245 A1 EP 0925245A1
Authority
EP
European Patent Office
Prior art keywords
winding
roller
web
support roller
nip
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
EP97944802A
Other languages
German (de)
French (fr)
Other versions
EP0925245B1 (en
Inventor
Reinhard Hehner
Georg Müller
Hans-Friedrich Peters
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 Paper Jagenberg GmbH
Original Assignee
Jagenberg Papiertechnik 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
Priority claimed from DE29615385U external-priority patent/DE29615385U1/en
Priority claimed from PCT/EP1997/000146 external-priority patent/WO1997028075A1/en
Priority claimed from DE19731060A external-priority patent/DE19731060B4/en
Application filed by Jagenberg Papiertechnik GmbH filed Critical Jagenberg Papiertechnik GmbH
Publication of EP0925245A1 publication Critical patent/EP0925245A1/en
Application granted granted Critical
Publication of EP0925245B1 publication Critical patent/EP0925245B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • B65H27/00—Special constructions, e.g. surface features, of feed or guide rollers for webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H18/00—Winding webs
    • B65H18/08—Web-winding mechanisms
    • B65H18/14—Mechanisms in which power is applied to web roll, e.g. to effect continuous advancement of web
    • B65H18/16—Mechanisms in which power is applied to web roll, e.g. to effect continuous advancement of web by friction roller
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H18/00—Winding webs
    • B65H18/08—Web-winding mechanisms
    • B65H18/14—Mechanisms in which power is applied to web roll, e.g. to effect continuous advancement of web
    • B65H18/20—Mechanisms in which power is applied to web roll, e.g. to effect continuous advancement of web the web roll being supported on two parallel rollers at least one of which is driven
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
    • B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
    • B65H75/18—Constructional details
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G27/00—Lap- or sliver-winding devices, e.g. for products of cotton scutchers, jute cards, or worsted gill boxes
    • D01G27/02—Lap- or sliver-winding devices, e.g. for products of cotton scutchers, jute cards, or worsted gill boxes with lap-roll or the like loaded to provide firm packages
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/41—Winding, unwinding
    • B65H2301/414—Winding
    • B65H2301/4148—Winding slitting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/41—Winding, unwinding
    • B65H2301/414—Winding
    • B65H2301/4148—Winding slitting
    • B65H2301/41486—Winding slitting winding on two or more winding shafts simultaneously
    • B65H2301/414863—Winding slitting winding on two or more winding shafts simultaneously directly against central support roller
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2401/00—Materials used for the handling apparatus or parts thereof; Properties thereof
    • B65H2401/10—Materials
    • 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
    • B65H2404/131—Details of longitudinal profile shape
    • B65H2404/1316—Details of longitudinal profile shape stepped or grooved
    • 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
    • B65H2404/14—Roller pairs
    • B65H2404/144—Roller pairs with relative movement of the rollers to / from each other
    • B65H2404/1441—Roller pairs with relative movement of the rollers to / from each other involving controlled actuator
    • 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
    • B65H2404/18—Rollers composed of several layers
    • B65H2404/181—Rollers composed of several layers with cavities or projections at least at one layer
    • 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
    • B65H2404/18—Rollers composed of several layers
    • B65H2404/185—Rollers composed of several layers easy deformable
    • 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
    • B65H2404/42—Arrangement of pairs of drums
    • B65H2404/421—Bed arrangement, i.e. involving parallel and spaced drums, e.g. arranged horizontally for supporting a roll to be wound or unwound
    • B65H2404/4214—Bed arrangement, i.e. involving parallel and spaced drums, e.g. arranged horizontally for supporting a roll to be wound or unwound the drums having different deformability
    • 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
    • B65H2404/50—Surface of the elements in contact with the forwarded or guided material
    • B65H2404/52—Surface of the elements in contact with the forwarded or guided material other geometrical properties
    • B65H2404/521—Reliefs

Definitions

  • the invention relates to a method for winding paper or cardboard webs on winding tubes and a winding machine for carrying out the method.
  • winding machines For the production of winding rolls from paper or cardboard webs divided by longitudinal cutting into individual webs, winding machines are known in which winding stations consisting of two supporting elements each are arranged on both sides of a central support roller, to which the individual webs are alternately fed for winding.
  • Each winding station holds a winding roll by means of guide heads which are rotatably mounted on the carrying elements and which move laterally into the winding tube.
  • the guide heads bear all or part of the roll weight in order to keep the line force at the contact line with the back-up roll, which is decisive for the winding quality, within a desired low range.
  • EP 0 481 029 B1 describes a winding machine in which the entire roll weight is carried by the guide heads.
  • the winding rollers are pressed from the side with the desired line force against the support roller.
  • the guide heads are equipped with rotary drives.
  • EP 0 629 172 B1 discloses a backup roller winding machine in which the winding stations are arranged on both sides next to the apex line of the backup roller.
  • the Back-up roll bears the entire roll weight at the start of winding. If the roll weight becomes too large for the desired line force from a certain winding roll diameter, the guide heads take on an ever increasing proportion of the roll weight.
  • DE utility model 296 1 5 385 describes a roller for a winding machine, which has a hollow cylindrical support body made of a solid material, on the jacket of which a deformable layer is applied, which consists of a cellular plastic material with a large number of uniformly distributed pores, and that Compression modulus K of less than 10 MPa. It is stated that such a roller can advantageously be used as a backup roller in a backup roller winding machine, since it almost eliminates nip-induced stretching of the web.
  • the invention has for its object to provide a method with the highest quality winding rolls from paper webs, even with a basis weight of less than 1 50 g / m 2 can be produced without problems at high production speeds of well over 3000 m / min. Another object is to provide a winding machine for carrying out a method according to the invention.
  • Claim 2 solves the second problem.
  • the winding rolls are pressed during winding with an adjustable contact pressure against a driven support roller partially wrapped by the web, which has a volume-compressible outer layer made of a cellular plastic material with a large number of uniformly distributed pores and a compression modulus of less than 10 MPa.
  • the circumferential or center drive pulls the web running out of the nip between the support roller and the winding roller and onto the winding roller with a tensile force of at least 1 N / cm web width depending on the type of paper or cardboard.
  • This prevents wrinkling in the nip due to the difference between the web speed of the incoming web and the peripheral speed of the winding roll, which occurs due to the reduction in the effective radius of the support roller due to the volume compression of the outer layer in the nip.
  • the web is pulled through the nip, which is made possible by local deformation of the coating in the direction of web travel without slippage.
  • the high production speeds are made possible by the destruction of the air boundary layer arriving on both sides of the web.
  • the air boundary layer entered in the nip when the web runs onto the winding roll leads to problems in the winding structure with increasing speeds.
  • the laminar air boundary layer is destroyed by the structured contact surface of the support roller in the nip generating high-frequency vibrating pressure peaks that act through the web and create turbulence in the air boundary layer on both sides of the web.
  • the minimum width of the nip which is dependent on the web speed, ensures that a sufficiently wide nip is formed in which the boundary layer is destroyed.
  • the volume-compressible outer layer with the minimum thickness of 5 mm has the further advantage that it dampens higher-frequency vibrations that excite the backup roller from the outside, for.
  • the formation of the contact surface of the support roller on the web through the layer of cellular plastic material has the further advantage that the coefficient of friction between the support roller and the web always remains the same regardless of wear. Unlike z. B. with coatings made of rubber, the coefficient of friction does not change when the layer wears. A coefficient of friction that is reduced as it wears could lead to disruptive slippage between the support roller and the web.
  • Fig. 1 shows a side view of a backup roll winding machine according to the invention.
  • Fig. 2 shows in a schematic diagram the area of the nip between the support roller and winding roll
  • Longitudinal cutting device 2 divided into individual webs and then wound into winding rolls 3.
  • the winding machine contains a driven support roller 4 with a diameter of more than 500 mm, preferably more than 750 mm, in the example of approximately 1,500 mm.
  • the support roller 3 consists of a hollow cylindrical support body 5 made of a solid material, in particular steel, which is designed to be sufficiently stable in order to be able to support the forces acting on or against the winding rollers 3 without bending.
  • the axial length of the support roller 4 corresponds to the maximum width of the paper or cardboard web 1 to be processed, which can be up to 10 m.
  • Shaft journals, with which the support roller 4 is mounted in the frame of the winding machine, are fastened to both end faces of the support body 5.
  • a shaft journal is connected to a rotary drive with which the support roller 4 is rotated about its longitudinal axis in order to rotate the winding rollers 3 lying on or against the winding roller 3.
  • a layer 6 of a cellular plastic material which has a large number of pores filled with gas, in particular air, and is therefore compressible and has a compression module K of less than 10 MPa is applied to the outer lateral surface of the support body 5 of the support roller 4.
  • a cellular elastomer produced by foaming in particular
  • Polyurethane used which has a compression modulus K of 1 MPa to 5 MPa. It is important that a large number of relatively small pores are evenly distributed over the volume of the layer 6.
  • the pore size is preferably less than 5 mm, and a pore size between 0.05 mm and 1 mm has proven to be particularly advantageous.
  • the pores in layer 6 are preferably partially open, that is to say connected to one another, partially self-contained. The proportion of open pores is 30% to 70%, preferably 50%. The ratio of the open pores to the closed pores determines both the compressibility and the ability of the layer to dissipate heat generated inside.
  • the contact surface of the support roller 4 with the web 1 is formed by the outer surface of the layer 6, which therefore contains pores which are open towards the web 1.
  • the contact surface to the web 1 is thus provided with a structure, it has small elevations and depressions.
  • Their coefficient of friction with paper or cardboard is greater than 0.25, preferably greater than 0.4, so that no slippage occurs between the web 1 and the support roller 4. Because no separate outer
  • the radially measured thickness of the layer 6 is at least 5 mm, preferably 15 mm to 30 mm, so that when a winding roller 3 is pressed on it is sufficiently wide
  • Nip 7 can be formed.
  • Layer 6 preferably consists of individual rings which are successively drawn over the support body and glued to it.
  • annular grooves extending to close to the supporting body 5 and having a width between 3 mm and 8 mm are incorporated into the layer 6 from the outside, or there are rings with this groove spacing corresponding width drawn at a distance from each other that corresponds to the groove width.
  • Winding stations are arranged on both sides of the support roller 4, each of which consist of two support elements which can be moved parallel to the support roller axis.
  • the support elements are in the frame 8 of the winding machine mounted trestles 9, the use of trestles mounted on the floor or pivoting support arms is also possible.
  • a guide head 1 2 with a rotary drive 1 3 is attached as a center drive.
  • the guide heads 1 2 can be retracted into the winding tubes 14 for holding and driving a winding roll 3.
  • an additional peripheral drive can also be used, e.g. B. a circumferential on the winding roller 3, driven roller or a driven belt.
  • the winding stations with the winding rollers 3 are arranged relative to the support roller 4 so that the individual webs 1 fed to the winding rollers 3 loop around the support roller 4 in front of the nip 7 in a circumferential area over a distance of at least 50 mm in length.
  • the wrap angle of the webs 1 around the support roller 4 is preferably more than 15 °, in particular more than 30 °.
  • the webs 1 are guided in a slip-free manner, therefore the web speed in front of the nip 7 corresponds to the peripheral speed of the support roller 4.
  • the winding stations with the winding rollers 3 are arranged on both sides of the parting line of the support roller 4, against which they rest during winding and from which the roller weights are carried in whole or in part.
  • the individual webs 1 produced in the longitudinal cutting device 2 are fed to the support roller 4 from below and from there to the winding stations of the two winding lines.
  • the winding blocks 9 are then pressed against the support roller 4 from the side with the desired contact pressure.
  • the web 1 is expediently fed from above to the support roller 4 and from there to the winding stations of the two winding lines.
  • a winding machine is described in EP 0 481 029-B1.
  • a crossbar 15 is arranged on each side in the frame 8 of the winding machine, and can be raised and lowered by means of a piston-cylinder unit 16.
  • a slide 17 is mounted transversely to the web 1 for each winding station.
  • a swivel arm 18 is articulated on each carriage 1 7 and carries at its end a pair of pressure rollers 19 which can be pivoted against the circumference of a winding roller 3 by means of a piston-cylinder unit 20.
  • the piston-cylinder units 20 are able to pivot the pressure rollers 19 into a non-disturbing rest position, as shown in FIG. In order to be able to remove a finished winding roll 3 from the winding machine, the traverse 15 with the pressure rolls 19 attached to it can be moved sufficiently high.
  • each pressure roller 19 has an axial length which corresponds to the minimum width of a single web to be wound, that is to say the minimum width of a winding roller 3 which can be produced. Their diameter is 200 mm to 400 mm.
  • each pressure roller 19 also consists of a hollow cylindrical support body made of solid material, in particular steel, on the jacket of which an outer layer made of the same cellular plastic material is applied as it is for the outer layer
  • the thickness of the compressible layer of the pressure rollers 19 is 5 mm to 30 mm, preferably 10 mm to 20 mm, otherwise their features and their preferred structure correspond to the layer 6 of the support roller 4 described above.
  • the compressible outer layer of the Druckrolien 1 9 has the great advantage that it fluctuates in the uniformity of the winding rolls, the z. B. result from path profile fluctuations, can compensate and thus ensure the uniformity of the contact pressure.
  • the pressure rollers 1 9 constructed in this way can be pressed against a winding roller 3 at higher pressures than steel rollers or rollers with a rubber cover, without undesirable folds occurring on the edges. This makes it possible to wind winding rolls 3 with greater winding hardness in the core area around the winding tube 14. When winding the winding rollers 3 are pressed against the support roller 4 with an adjustable contact pressure.
  • the desired value being set by relieving the weight by means of the guide heads 12 or - if the roll weight is not yet sufficient - by an additional contact pressure by the pressure rollers 19. If the guide heads 1 2 bear the entire roll weight, ie the winding rolls 3 do not rest on the support roller, the desired contact pressure is generated by pressing the guide heads 12 with a winding roller 3 in the direction of the support roller 4.
  • the contact pressure of a winding roller 3 on the support roller 4 is adjusted so that a nip 7 is formed which has a width b of at least 5 measured in the direction of the roller circumference mm at a final production speed of more than
  • the nip 7 is sufficiently large that the laminar air boundary layer between the web 1 and the winding roll 3 in the nip 7 is destroyed.
  • the destruction of the air boundary layer is caused by high-frequency vibrating pressure peaks, which are generated in the nip 7 by the structured contact surface of the support roller 4.
  • the pressure peaks act through the web 1 and trigger destructive turbulence in the laminar air boundary layer on both sides of the web 1.
  • the air between the web layers is pumped out as it passes through the nip 7.
  • the webs 1 running out of the nip 7 and running onto the winding rollers 3 are by means of an additional center drive - the rotary drives 13 of the guide heads 1 2 - and / or by means of an additional peripheral drive with a tensile force dependent on the paper type of at least 1 N / cm web width, preferably 3 to 10 N / cm web width.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Winding Of Webs (AREA)
  • Replacement Of Web Rolls (AREA)
  • Paper (AREA)
  • Sanitary Thin Papers (AREA)
  • Basic Packing Technique (AREA)
  • Wrapping Of Specific Fragile Articles (AREA)

Abstract

A process and machine are disclosed for winding-up paper or cardboard webs (1) on winding tubes (14). The winding-up rollers (3) are pressed during winding with an adjustable force against a driven support roller (4) provided with a volume-compressible outer layer (6) at least 5 mm thick made of a cellular plastic material with a plurality of uniformly distributed pores and a compression module kappa lower than 10 MPa. The web (1) supplied to one winding-up roller (3) is twisted around an area of the circumference of the support roller (4) upstream of the nip (7) between the winding-up roller (3) and the support roller (4). The force with which a winding-up roller (3) is pressed against the support roller (4) is adjusted depending on the structure of the outer layer (6) to form a nip (7) with a minimum width b which depends on the final production speed. The web (1) that runs out of the nip (7) is then pulled with a force of at least 1 N/cm web width by means of an additional circumferential or central drive (13).

Description

B E S C H R E I B U N G DESCRIPTION
Verfahren und Wickelmaschine zum Aufwickeln von Papier- oder KartonbahnenProcess and winding machine for winding paper or cardboard webs
Technisches GebietTechnical field
Die Erfindung betrifft ein Verfahren zum Aufwickeln von Papier- oder Kartonbahnen auf Wickelhülsen und eine Wickelmaschine zur Durchführung des Verfahrens.The invention relates to a method for winding paper or cardboard webs on winding tubes and a winding machine for carrying out the method.
Zur Herstellung von Wickelrollen aus durch Längsschneiden in Einzelbahnen unterteilte Papier- oder Kartonbahnen sind Wickelmaschinen bekannt, bei denen an beiden Seiten einer zentralen Stützwalze aus jeweils zwei Tragelementen bestehende Wickelstationen angeordnet sind, denen die Einzelbahnen wechselweise zum Aufwickeln zugeführt werden. Jede Wickelstation hält eine Wickelrolle mittels an den Tragele- menten drehbar gelagerten Führungsköpfen, die seitlich in die Wickelhülse einfahren. Die Führungsköpfe tragen dabei ganz oder teilweise das Rollengewicht, um die für die Wickelqualität entscheidende Linienkraft an der Berührungslinie mit der Stützwalze in einem gewünscht niedrigen Bereich halten zu können.For the production of winding rolls from paper or cardboard webs divided by longitudinal cutting into individual webs, winding machines are known in which winding stations consisting of two supporting elements each are arranged on both sides of a central support roller, to which the individual webs are alternately fed for winding. Each winding station holds a winding roll by means of guide heads which are rotatably mounted on the carrying elements and which move laterally into the winding tube. The guide heads bear all or part of the roll weight in order to keep the line force at the contact line with the back-up roll, which is decisive for the winding quality, within a desired low range.
Stand der TechnikState of the art
Aus der EP 0 481 029 B1 ist eine Wickelmaschine beschrieben, bei der das gesamte Rollengewicht von den Führungsköpfen getragen wird. Die Wickelrollen werden von der Seite mit der gewünschten Linienkraft gegen die Stützwalze gedrückt. Um die Härte der Wicklung, insbesondere im Bereich geringer Durchmesser, zusätzlich beeinflußen zu können, sind die Führungsköpfe mit Drehantrieben ausgestattet.EP 0 481 029 B1 describes a winding machine in which the entire roll weight is carried by the guide heads. The winding rollers are pressed from the side with the desired line force against the support roller. In order to be able to additionally influence the hardness of the winding, particularly in the area of small diameters, the guide heads are equipped with rotary drives.
In der EP 0 629 172 B1 ist eine Stützwalzen-Wickelmaschine bekannt, bei der die Wickelstationen beidseits neben der Scheitellinie der Stützwalze angeordnet sind. Die Stützwalze trägt zu Beginn der Aufwicklung das gesamte Rollengewicht. Wenn das Rollengewicht für die gewünschte Linienkraft ab einem bestimmten Wickelrollendurchmesser zu groß wird, übernehmen die Führungsköpfe einen immer größer werdenden Anteil des Rollengewichts.EP 0 629 172 B1 discloses a backup roller winding machine in which the winding stations are arranged on both sides next to the apex line of the backup roller. The Back-up roll bears the entire roll weight at the start of winding. If the roll weight becomes too large for the desired line force from a certain winding roll diameter, the guide heads take on an ever increasing proportion of the roll weight.
Das DE-Gebrauchsmuster 296 1 5 385 beschreibt eine Walze für eine Wickelmaschine, die einen hohlzylinderförmigen Tragkörper aus einem festen Material aufweist, auf dessen Mantel eine verformbare Schicht aufgebracht ist, die aus einem zelligen Kunststoffmaterial mit einer Vielzahl von gleichmäßig verteilten Poren besteht und das ein Kompressionsmodul K von weniger als 10 MPa aufweist. Es ist angeführt, daß eine derartige Walze vorteilhaft als Stützwalze in einer Stützwalzen-Wickelmaschine eingesetzt werden kann, da sie eine nipinduzierte Dehnung der Bahn nahezu eliminiert.DE utility model 296 1 5 385 describes a roller for a winding machine, which has a hollow cylindrical support body made of a solid material, on the jacket of which a deformable layer is applied, which consists of a cellular plastic material with a large number of uniformly distributed pores, and that Compression modulus K of less than 10 MPa. It is stated that such a roller can advantageously be used as a backup roller in a backup roller winding machine, since it almost eliminates nip-induced stretching of the web.
Darstellung der ErfindungPresentation of the invention
Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren bereitzustellen, mit dem Wickelrollen höchster Qualität aus Papierbahnen, auch mit einem Flächengewicht von weniger als 1 50 g/m2 bei großen Produktionsgeschwindigkeiten von weit über 3000 m/min störungsfrei produziert werden können. Eine weitere Aufgabe liegt in der Bereitstellung einer Wickelmaschine zur Durchführung eines erfindungsgemäßen Verfahrens.The invention has for its object to provide a method with the highest quality winding rolls from paper webs, even with a basis weight of less than 1 50 g / m 2 can be produced without problems at high production speeds of well over 3000 m / min. Another object is to provide a winding machine for carrying out a method according to the invention.
Die erste Aufgabe wird mit den Merkmalen des Patentanspruchs 1 gelöst. Patentanspruch 2 löst die zweite Aufgabe.The first object is achieved with the features of patent claim 1. Claim 2 solves the second problem.
Nach der Erfindung werden die Wickelrollen beim Aufwickeln mit einer einstellbaren Anpreßkraft gegen eine angetriebene und teilweise von der Bahn umschlungene Stützwalze gedrückt, die eine volumenkompressible Außenschicht aus einem zelligen Kunststoffmaterial mit einer Vielzahl gleichmäßig verteilter Poren und einem Kompressionsmodul von weniger als 10 MPa aufweist. Mittels eines zusätzlichenAccording to the invention, the winding rolls are pressed during winding with an adjustable contact pressure against a driven support roller partially wrapped by the web, which has a volume-compressible outer layer made of a cellular plastic material with a large number of uniformly distributed pores and a compression modulus of less than 10 MPa. By means of an additional
Umfangs- oder Zentrumsantriebs wird die aus dem Nip zwischen der Stützwalze und der Wickelrolle auslaufende und auf die Wickelrolle auflaufende Bahn mit einer von der Papier- oder Kartonsorte abhängigen Zugkraft von mindestens 1 N/cm Bahnbreite gezogen. Dies verhindert eine Faltenbildung im Nip aufgrund der Differenz zwischen der Bahngeschwindigkeit der einlaufenden Bahn und der Umfangsgeschwindigkeit der Wickelrolle, die durch die Verringerung des effektiven Radius der Stützwalze durch die Volumenkompression der Außenschicht im Nip auftritt. Zum Ausgleich der Differenzgeschwindigkeit wird die Bahn durch den Nip gezogen, was schlupffrei durch lokale Verformung des Belages in Bahnlaufrichtung ermöglicht wird.The circumferential or center drive pulls the web running out of the nip between the support roller and the winding roller and onto the winding roller with a tensile force of at least 1 N / cm web width depending on the type of paper or cardboard. This prevents wrinkling in the nip due to the difference between the web speed of the incoming web and the peripheral speed of the winding roll, which occurs due to the reduction in the effective radius of the support roller due to the volume compression of the outer layer in the nip. To compensate for the differential speed, the web is pulled through the nip, which is made possible by local deformation of the coating in the direction of web travel without slippage.
Die hohen Produktionsgeschwindigkeiten werden durch eine Destruktion der mit der Bahn auf beiden Bahnseiten einlaufenden Luftgrenzschicht ermöglicht. Die beim Auflaufen der Bahn auf die Wickelrolle im Nip eingetragene Luftgrenzschicht führt bei steigenden Geschwindigkeiten zu Problemen im Wickelaufbau. Die laminare Luftgrenzschicht wird zerstört, indem durch die strukturierte Kontaktfiäche der Stützwalze im Nip hochfrequent schwingende Druckspitzen erzeugt werden, die durch die Bahn wirken und Turbulenzen in der Luftgrenzschicht auf beiden Seiten der Bahn erzeugen. Die von der Bahngeschwindigkeit abhängige Mindestbreite des Nips gewährleistet, daß sich ein ausreichend breiter Nip ausbildet, in dem die Grenzschicht zerstört wird.The high production speeds are made possible by the destruction of the air boundary layer arriving on both sides of the web. The air boundary layer entered in the nip when the web runs onto the winding roll leads to problems in the winding structure with increasing speeds. The laminar air boundary layer is destroyed by the structured contact surface of the support roller in the nip generating high-frequency vibrating pressure peaks that act through the web and create turbulence in the air boundary layer on both sides of the web. The minimum width of the nip, which is dependent on the web speed, ensures that a sufficiently wide nip is formed in which the boundary layer is destroyed.
Die volumenkompressible Außenschicht mit der Mindestdicke von 5 mm hat den weiteren Vorteil, daß sie höherfrequente Schwingungen dämpft, die von außen die Stützwalze anregen, z. B. von Wickelrollen mit Profilschwankungen angeregte Schwingungen. Diese Schwingungen werden gedämpft und nicht an den Tragkörper, seine Lagerung oder das übrige Wickelsystem weitergeleitet, es kann somit vibrationsfrei gewickelt werden.The volume-compressible outer layer with the minimum thickness of 5 mm has the further advantage that it dampens higher-frequency vibrations that excite the backup roller from the outside, for. B. Vibrations excited by winding rolls with profile fluctuations. These vibrations are damped and not passed on to the supporting body, its storage or the rest of the winding system, so it can be wound without vibration.
Die Bildung der Kontaktfläche der Stützwalze an der Bahn durch die Schicht aus zelligem Kunststoffmaterial hat den weiteren Vorteil, daß der Reibbeiwert zwischen der Stützwalze und der Bahn verschleißunabhängig immer gleich bleibt. Anders als z. B. bei Beschichtungen aus Gummi ändert sich bei einem Verschleiß der Schicht der Reibbeiwert nicht. Ein sich beim Verschleißen verringernder Reibbeiwert könnte zu einem störenden Schlupf zwischen der Stützwalze und der Bahn führen.The formation of the contact surface of the support roller on the web through the layer of cellular plastic material has the further advantage that the coefficient of friction between the support roller and the web always remains the same regardless of wear. Unlike z. B. with coatings made of rubber, the coefficient of friction does not change when the layer wears. A coefficient of friction that is reduced as it wears could lead to disruptive slippage between the support roller and the web.
Die Unteransprüche enthalten bevorzugte, das besonders vorteilhafte Ausgestaltungen einer erfindungsgemäßen Wickelmaschine. Kurze Beschreibung der ZeichnungThe sub-claims contain preferred, the particularly advantageous embodiments of a winding machine according to the invention. Brief description of the drawing
Die Zeichnung dient zur Erläuterung der Erfindung anhand eines vereinfacht dargestellten Ausführungsbeispiels.The drawing serves to explain the invention with reference to an embodiment shown in simplified form.
Fig. 1 zeigt eine Seitenansicht einer Stützwalzen-Wickelmaschine nach der Erfindung.Fig. 1 shows a side view of a backup roll winding machine according to the invention.
Fig. 2 zeigt in einer Prinzipskizze den Bereich des Nips zwischen Stützwalze und WickelrolleFig. 2 shows in a schematic diagram the area of the nip between the support roller and winding roll
Wege zur Ausführung der ErfindungWays of Carrying Out the Invention
Die von einer nicht dargestellten Vorratsrolle abgezogene, mehrere Meter breite Papier- oder Kartonbahn 1 wird in der Stützwalzen-Wickelmaschine von einerThe from a supply roll, not shown, several meters wide paper or cardboard web 1 is in the backing roll winding machine by one
Längsschneidevorrichtung 2 in Einzelbahnen aufgeteilt und anschließend zu Wickelrollen 3 aufgewickelt.Longitudinal cutting device 2 divided into individual webs and then wound into winding rolls 3.
Die Wickelmaschine enthält eine angetriebene Stützwalze 4 mit einem Durchmesser von mehr als 500 mm, bevorzugt mehr als 750 mm, im Beispiel von ca. 1 500 mm. Die Stützwalze 3 besteht aus einem hohlzylinderförmigen Tragkörper 5 aus einem festen Material, inbesondere aus Stahl, der ausreichend stabil gestaltet ist, um verbiegungsfrei die durch auf- oder anliegende Wickelrollen 3 wirkenden Kräfte abstützen zu können. Die axiale Länge der Stützwalze 4 entspricht der maximalen Breite der zu verarbeitenden Papier- oder Kartonbahn 1 , die bis zu 10 m betragen kann. An beiden Stirnseiten des Tragkörpers 5 sind Wellenzapfen befestigt, mit denen die Stützwalze 4 im Gestell der Wickelmaschine gelagert ist. Ein Wellenzapfen ist mit einem Drehantrieb verbunden, mit dem die Stützwalze 4 um ihre Längsachse gedreht wird, um die auf- oder anliegenden Wickelrollen 3 beim Aufwickeln zu drehen.The winding machine contains a driven support roller 4 with a diameter of more than 500 mm, preferably more than 750 mm, in the example of approximately 1,500 mm. The support roller 3 consists of a hollow cylindrical support body 5 made of a solid material, in particular steel, which is designed to be sufficiently stable in order to be able to support the forces acting on or against the winding rollers 3 without bending. The axial length of the support roller 4 corresponds to the maximum width of the paper or cardboard web 1 to be processed, which can be up to 10 m. Shaft journals, with which the support roller 4 is mounted in the frame of the winding machine, are fastened to both end faces of the support body 5. A shaft journal is connected to a rotary drive with which the support roller 4 is rotated about its longitudinal axis in order to rotate the winding rollers 3 lying on or against the winding roller 3.
Auf die äußere Mantelfläche des Tragkörpers 5 der Stützwalze 4 ist eine Schicht 6 aus einem zelligen, eine Vielzahl von mit Gas, insbesondere Luft, gefüllte Poren aufweisenden und daher kompressiblen Kunststoffmaterial aufgebracht, das ein Kompressionsmodul K von weniger als 10 MPa aufweist. Vorzugsweise wird für die Schicht 6 ein durch Schäumen hergestelltes zelhges Elastomer, insbesondereA layer 6 of a cellular plastic material which has a large number of pores filled with gas, in particular air, and is therefore compressible and has a compression module K of less than 10 MPa is applied to the outer lateral surface of the support body 5 of the support roller 4. Preferably for the Layer 6 is a cellular elastomer produced by foaming, in particular
Polyurethan, verwendet, das ein Kompressionsmodul K von 1 MPa bis 5 MPa hat. Wichtig ist, daß eine große Anzahl relativ kleiner Poren über das Volumen der Schicht 6 gleichmäßig verteilt ist. Bevorzugt ist die Porengröße kleiner als 5 mm, als besonders vorteilhaft hat sich eine Porengröße zwischen 0,05 mm und 1 mm gezeigt. Bevorzugt sind die Poren in der Schicht 6 teilweise offen, also miteinander verbunden, teilweise in sich geschlossen. Der Anteil der offenen Poren beträgt 30 % bis 70 %, vorzugsweise 50 %. Das Verhältnis der offenen Poren zu den geschlossenen Poren bestimmt sowohl die Kompressibilität als auch die Fähigkeit der Schicht, im Innern entstehende Wärme abzuleiten. Die Kontaktfläche der Stützwalze 4 mit der Bahn 1 wird von der äußeren Oberfläche der Schicht 6 gebildet, die daher zur Bahn 1 hin offene Poren enthält. Die Kontaktfläche zur Bahn 1 ist somit mit einer Struktur versehen, sie weist kleine Erhebungen und Vertiefungen auf. Ihr Reibbeiwert mit Papier oder Karton ist größer als 0,25, bvorzugt größer als 0,4, damit kein Schlupf zwischen der Bahn 1 und der Stützwalze 4 auftritt. Da keine getrennte äußerePolyurethane used, which has a compression modulus K of 1 MPa to 5 MPa. It is important that a large number of relatively small pores are evenly distributed over the volume of the layer 6. The pore size is preferably less than 5 mm, and a pore size between 0.05 mm and 1 mm has proven to be particularly advantageous. The pores in layer 6 are preferably partially open, that is to say connected to one another, partially self-contained. The proportion of open pores is 30% to 70%, preferably 50%. The ratio of the open pores to the closed pores determines both the compressibility and the ability of the layer to dissipate heat generated inside. The contact surface of the support roller 4 with the web 1 is formed by the outer surface of the layer 6, which therefore contains pores which are open towards the web 1. The contact surface to the web 1 is thus provided with a structure, it has small elevations and depressions. Their coefficient of friction with paper or cardboard is greater than 0.25, preferably greater than 0.4, so that no slippage occurs between the web 1 and the support roller 4. Because no separate outer
Laufschicht vorhanden ist, bleibt dieser Reibbeiwert auch bei einem Verschleiß an der Oberfläche erhalten.Running surface is present, this coefficient of friction is retained even with wear on the surface.
Die radial gemessene Dicke der Schicht 6 beträgt mindestens 5 mm, bevorzugt 1 5 mm bis 30 mm, so daß beim Andrücken einer Wickelrolle 3 ein ausreichend breiterThe radially measured thickness of the layer 6 is at least 5 mm, preferably 15 mm to 30 mm, so that when a winding roller 3 is pressed on it is sufficiently wide
Nip 7 gebildet werden kann. Bevorzugt besteht die Schicht 6 aus einzelnen Ringen, die aufeinanderfolgend über den Tragkörper gezogen und auf diesem festgeklebt sind. Bevorzugt sind mit einem Abstand von 50 mm bis 300 mm in Umfangsnchtung verlaufende, ringförmige und bis nahe an den Tragkorper 5 reichende Nuten mit einer Breite zwischen 3 mm und 8 mm von außen in die Schicht 6 eingearbeitet, oder es sind Ringe mit einer diesem Nutabstand entsprechenden Breite in einem Abstand voneinander aufgezogen, der der Nutbreite entspricht.Nip 7 can be formed. Layer 6 preferably consists of individual rings which are successively drawn over the support body and glued to it. Preferably, with a spacing of 50 mm to 300 mm in the circumferential direction, annular grooves extending to close to the supporting body 5 and having a width between 3 mm and 8 mm are incorporated into the layer 6 from the outside, or there are rings with this groove spacing corresponding width drawn at a distance from each other that corresponds to the groove width.
Zu beiden Seiten der Stützwalze 4 sind Wickelstationen angeordnet, die jeweils aus zwei parallel zur Stützwalzenachse verfahrbaren Tragelementen bestehen. Im vorliegenden Beispiel sind die Tragelemente im Gestell 8 der Wickelmaschine gelagerte Wickelböcke 9, ebenso ist der Einsatz von am Boden gelagerten Wickelböcken oder von schwenkbaren Tragarmen möglich. An jedem Tragelement - im vorliegenden Beispiel an jedem Wickelbock 9 - ist ein Schlitten 10 mittels einer Kolben-Zylinder-Einheit 1 1 in etwa radial zur Stützwalze 4 verfahrbar gelagert. An jedem Schlitten 10 ist ein Führungskopf 1 2 mit einem Drehantrieb 1 3 als Zentrumsantrieb befestigt. Die Führungsköpfe 1 2 können zum Halten und Antreiben einer Wickelrolle 3 in deren Wickelhülsen 14 eingefahren werden. Anstelle eines als Zentrumsantrieb arbeitenden Drehantriebs 1 3 für die Führungsköpfe 1 2 kann auch ein zusätzlicher Umfangsantrieb eingesetzt werden, z. B. eine an der Wickelrolle 3 umfänglich anliegende, angetriebene Walze oder ein angetriebenes Band.Winding stations are arranged on both sides of the support roller 4, each of which consist of two support elements which can be moved parallel to the support roller axis. In the present example, the support elements are in the frame 8 of the winding machine mounted trestles 9, the use of trestles mounted on the floor or pivoting support arms is also possible. On each support element - in the present example on each winding block 9 - is a slide 10 by means of a Piston-cylinder unit 1 1 mounted approximately radially to the support roller 4. On each carriage 10, a guide head 1 2 with a rotary drive 1 3 is attached as a center drive. The guide heads 1 2 can be retracted into the winding tubes 14 for holding and driving a winding roll 3. Instead of a rotary drive 1 3 working as a center drive for the guide heads 1 2, an additional peripheral drive can also be used, e.g. B. a circumferential on the winding roller 3, driven roller or a driven belt.
Die Wickelstationen mit den Wickelrollen 3 sind relativ zu der Stützwalze 4 so angeordnet, daß die den Wickelrollen 3 zugeführten Einzelbahnen 1 die Stützwalze 4 vor dem Nip 7 in einem Umfangsbereich auf einer Strecke von mindestens 50 mm Länge umschlingen. Bevorzugt beträgt der Umschlingungswinkel der Bahnen 1 um die Stützwalze 4 mehr als 1 5°, insbesondere mehr als 30° . Die Bahnen 1 werden schlupffrei geführt, daher entspricht die Bahngeschwindigkeit vor dem Nip 7 der Umfangsgeschwindigkeit der Stützwalze 4.The winding stations with the winding rollers 3 are arranged relative to the support roller 4 so that the individual webs 1 fed to the winding rollers 3 loop around the support roller 4 in front of the nip 7 in a circumferential area over a distance of at least 50 mm in length. The wrap angle of the webs 1 around the support roller 4 is preferably more than 15 °, in particular more than 30 °. The webs 1 are guided in a slip-free manner, therefore the web speed in front of the nip 7 corresponds to the peripheral speed of the support roller 4.
Im vorliegenden Ausführungsbeispiel sind die Wickelstationen mit den Wickelrollen 3 zu beiden Seiten der Scheiteilinie der Stützwalze 4 angeordnet, an der sie während des Aufwickeins anliegen und von der die Rollengewichte ganz oder teilweise getragen werden. Die in der Längsschneideeinrichtung 2 erzeugten Einzelbahnen 1 werden der Stützwalze 4 von unten zugeführt und von dieser den Wickelstationen der beiden Wickellinien zugeführt.In the present exemplary embodiment, the winding stations with the winding rollers 3 are arranged on both sides of the parting line of the support roller 4, against which they rest during winding and from which the roller weights are carried in whole or in part. The individual webs 1 produced in the longitudinal cutting device 2 are fed to the support roller 4 from below and from there to the winding stations of the two winding lines.
Ebenso ist es möglich, die Wickelböcke 9 seitlich neben der Stützwalze 4 auf dem Boden zu lagern, so daß die Führungsköpfe 12 das gesamte Rollengewicht tragen. Die Wickelrollen 3 werden dann von der Seite mit der gewünschten Anpreßkraft gegen die Stützwalze 4 gedrückt. Zweckmäßigerweise wird bei dieser Ausführungsform die Bahn 1 von oben der Stützwalze 4 zugeführt und von dieser zu den Wickelstationen der beiden Wickellinien zugeführt. Eine derartige Wickelmaschine ist in der EP 0 481 029-B1 beschrieben. Mit Abstand neben der Stützwalze 4 ist an jeder Seite im Gestell 8 der Wickelmaschine eine Quertraverse 1 5 angeordnet, die mittels einer Kolben-Zylinder-Einheit 1 6 heb- und senkbar ist. An den Quertraversen 1 5 ist für jede Wickelstation ein Schlitten 17 quer zur Bahn 1 verfahrbar gelagert. An jedem Schlitten 1 7 ist ein Schwenkarm 18 angelenkt, der an seinem Ende ein Druckrollenpaar 1 9 trägt, das mittels einer Kolben- Zylinder-Einheit 20 gegen den Umfang einer Wickelrolle 3 anschwenkbar ist. Mit den Druckrollen 1 9 wird zu Beginn des Aufwickelns, wenn das Auflagegewicht noch nicht ausreicht, die Anpreßkraft im Nip 7 erhöht, um die gewünschte Wickelhärte zu erreichen. Die Kolben-Zylinder-Einheiten 20 sind in der Lage, die Druckrollen 1 9 in eine nicht störende Ruheposition hochzuschwenken, wie in Figur 1 dargestellt ist. Um eine fertige Wickelrolle 3 aus der Wickelmaschine entfernen zu können, kann die Traverse 1 5 mit den daran befestigten Druckrollen 1 9 ausreichend hoch bewegt werden.It is also possible to store the winding blocks 9 laterally next to the support roller 4 on the floor, so that the guide heads 12 bear the entire roll weight. The winding rolls 3 are then pressed against the support roller 4 from the side with the desired contact pressure. In this embodiment, the web 1 is expediently fed from above to the support roller 4 and from there to the winding stations of the two winding lines. Such a winding machine is described in EP 0 481 029-B1. At a distance from the support roller 4, a crossbar 15 is arranged on each side in the frame 8 of the winding machine, and can be raised and lowered by means of a piston-cylinder unit 16. On the crossbeams 1 5, a slide 17 is mounted transversely to the web 1 for each winding station. A swivel arm 18 is articulated on each carriage 1 7 and carries at its end a pair of pressure rollers 19 which can be pivoted against the circumference of a winding roller 3 by means of a piston-cylinder unit 20. With the pressure rollers 1 9 at the beginning of the winding, if the support weight is not yet sufficient, the contact pressure in the nip 7 is increased in order to achieve the desired winding hardness. The piston-cylinder units 20 are able to pivot the pressure rollers 19 into a non-disturbing rest position, as shown in FIG. In order to be able to remove a finished winding roll 3 from the winding machine, the traverse 15 with the pressure rolls 19 attached to it can be moved sufficiently high.
Die frei drehbar gelagerten Druckrollen 1 9 haben eine axiale Länge, die der minimalen Breite einer aufzuwickelnden Einzelbahn, also der minimalen Breite einer herstellbaren Wickelrolle 3 entspricht. Ihr Durchmesser beträgt 200 mm bis 400 mm. Bevorzugt besteht jede Druckrolle 19 ebenfalls aus einem hohlzylinderförmigen Tragkörper aus festem Material, insbesondere aus Stahl, auf dessen Mantel eine Außenschicht aus dem gleichen zelligen Kunststoff material aufgebracht ist, wie es für die AußenschichtThe freely rotatably mounted pressure rollers 19 have an axial length which corresponds to the minimum width of a single web to be wound, that is to say the minimum width of a winding roller 3 which can be produced. Their diameter is 200 mm to 400 mm. Preferably, each pressure roller 19 also consists of a hollow cylindrical support body made of solid material, in particular steel, on the jacket of which an outer layer made of the same cellular plastic material is applied as it is for the outer layer
6 der Stützwalze 4 verwendet wird. Die Dicke der kompressiblen Schicht der Druckrollen 1 9 beträgt 5 mm bis 30 mm, bevorzugt 10 mm bis 20 mm, ansonsten entsprechen ihre Merkmale und ihr bevorzugter Aufbau der vorstehend beschriebenen Schicht 6 der Stützwalze 4.6 of the support roller 4 is used. The thickness of the compressible layer of the pressure rollers 19 is 5 mm to 30 mm, preferably 10 mm to 20 mm, otherwise their features and their preferred structure correspond to the layer 6 of the support roller 4 described above.
Die kompressible Außenschicht der Druckrolien 1 9 hat den großen Vorteil, daß sie Schwankungen in der Gleichmäßigkeit der Wickelrollen, die z. B. aus Bahnprofilschwankungen resultieren, ausgleichen können und so die Gleichmäßigkeit des Anpreßdrucks gewährleisten. Darüber hinaus lassen sich die so aufgebauten Druckrollen 1 9 mit größeren Drücken als Stahlrollen oder Rollen mit einem Gummibezug gegen eine Wickelrolle 3 drücken, ohne daß unerwünschte Falten an den Kanten entstehen. Dies ermöglicht es, Wickelrollen 3 mit größerer Wickelhärte im Kernbereich um die Wickelhülse 14 zu wickeln. Beim Aufwickeln werden die Wickelrollen 3 mit einer einstellbaren Anpreßkraft gegen die Stützwalze 4 gedrückt. Erzeugt wird die Anpreßkraft bei der Ausführungsform nach Figur 1 durch die Gewichtskraft der aufliegenden Wickelrollen 3, wobei der gewünschte Wert durch eine Gewichtsentlastung mittels der Führungsköpfe 1 2 oder - falls das Rollengewicht noch nicht ausreicht - durch eine zusätzliche Anpreßkraft von den Druckrollen 19 eingestellt wird. Falls die Führungsköpfe 1 2 das gesamte Rollengewicht tragen, also die Wickelrollen 3 an der Stützwalze nur an- nicht aufliegen, wird die gewünschte Anpreßkraft erzeugt, indem die Führungsköpfe 12 mit einer Wickelrolle 3 in Richtung zur Stützwalze 4 gedrückt werden.The compressible outer layer of the Druckrolien 1 9 has the great advantage that it fluctuates in the uniformity of the winding rolls, the z. B. result from path profile fluctuations, can compensate and thus ensure the uniformity of the contact pressure. In addition, the pressure rollers 1 9 constructed in this way can be pressed against a winding roller 3 at higher pressures than steel rollers or rollers with a rubber cover, without undesirable folds occurring on the edges. This makes it possible to wind winding rolls 3 with greater winding hardness in the core area around the winding tube 14. When winding the winding rollers 3 are pressed against the support roller 4 with an adjustable contact pressure. The contact pressure in the embodiment according to FIG. 1 is generated by the weight of the winding rollers 3 lying thereon, the desired value being set by relieving the weight by means of the guide heads 12 or - if the roll weight is not yet sufficient - by an additional contact pressure by the pressure rollers 19. If the guide heads 1 2 bear the entire roll weight, ie the winding rolls 3 do not rest on the support roller, the desired contact pressure is generated by pressing the guide heads 12 with a winding roller 3 in the direction of the support roller 4.
In Abhängigkeit von dem Aufbau der Außenschicht 6 der Stützwalze, also deren Gestalt und Materialeigenschaften, wird die Anpreßkraft einer Wickelrolle 3 an der Stützwalze 4 so eingestellt, daß sich ein Nip 7 ausbildet, der eine in Richtung des Walzenumfangs gemessene Breite b von - mindestens 5 mm bei einer Endproduktionsgeschwindigkeit von mehr alsDepending on the structure of the outer layer 6 of the support roller, i.e. its shape and material properties, the contact pressure of a winding roller 3 on the support roller 4 is adjusted so that a nip 7 is formed which has a width b of at least 5 measured in the direction of the roller circumference mm at a final production speed of more than
1000 m/min,1000 m / min,
- mindestens 1 5 mm bei einer Endproduktionsgeschwindigkeit von mehr als 2000 m/min,- at least 1 5 mm at a final production speed of more than 2000 m / min,
- mindestens 40 mm bei einer Endproduktionsgeschwindigkeit von mehr als 3000 m/min und- at least 40 mm at a final production speed of more than 3000 m / min and
- mindestens 70 mm bei einer Endproduktionsgeschwindigkeit von mehr als 4000 m/min hat.- has at least 70 mm at a final production speed of more than 4000 m / min.
Bei diesen Breiten ist der Nip 7 ausreichend groß, daß die laminare Luftgrenzschicht zwischen der Bahn 1 und der Wickelrolle 3 im Nip 7 zerstört wird. Die Zerstörung der Luftgrenzschicht wird durch hochfrequent schwingende Druckspitzen bewirkt, die im Nip 7 von der strukturierten Kontaktfläche der Stützwalze 4 erzeugt werden. Die Druckspitzen wirken durch die Bahn 1 und lösen destruktiv wirkende Turbulenzen in der laminaren Luftgrenzschicht auf beiden Seiten der Bahn 1 aus. Hierdurch wird die Luft zwischen den Bahnlagen beim Durchlauf durch den Nip 7 herausgepumpt.At these widths, the nip 7 is sufficiently large that the laminar air boundary layer between the web 1 and the winding roll 3 in the nip 7 is destroyed. The destruction of the air boundary layer is caused by high-frequency vibrating pressure peaks, which are generated in the nip 7 by the structured contact surface of the support roller 4. The pressure peaks act through the web 1 and trigger destructive turbulence in the laminar air boundary layer on both sides of the web 1. As a result, the air between the web layers is pumped out as it passes through the nip 7.
Um Faltenbildung in dem Nip 7 zu verhindern, werden die aus dem Nip 7 auslaufende und auf die Wickelrollen 3 auflaufenden Bahnen 1 mittels eines zusätzlichen Zentrumsantriebs - den Drehantrieben 13 der Führungsköpfe 1 2 - und/oder mittels eines zusätzlichen Umfangsantriebs mit einer von der Papiersorte abhängigen Zugkraft von mindestens 1 N/cm Bahnbreite, vorzugsweise 3 bis 10 N/cm Bahnbreite, gezogen. In order to prevent wrinkles from forming in the nip 7, the webs 1 running out of the nip 7 and running onto the winding rollers 3 are by means of an additional center drive - the rotary drives 13 of the guide heads 1 2 - and / or by means of an additional peripheral drive with a tensile force dependent on the paper type of at least 1 N / cm web width, preferably 3 to 10 N / cm web width.

Claims

PATENTANSPRÜCHE PATENT CLAIMS
1.1.
Verfahren zum Aufwickein von Papier- oder Kartonbahnen, insbesondere von Papierbahnen (1 ) mit einem Flächengewicht von weniger als 150 g/m2 , auf Wickelhülsen (14) mit folgenden Merkmalen:Method for winding up paper or cardboard webs, in particular paper webs (1) with a basis weight of less than 150 g / m 2 , on winding cores (14) with the following features:
a) Die Wickelrollen (3) werden beim Aufwickeln mit einer einstellbaren Anpreßkraft gegen eine angetriebene Stützwalze (4) gedrückt, die eine volumenkompressible Außenschicht (6) mit einer Dicke von mindestens 5 mm, bevorzugt 1 5 mm bis 30 mm, aus einem zelligen Kunststoffmaterial mit einer Vielzahl von gleichmäßig verteilten Poren und einem Kompressionsmodul K von weniger als 10 MPa aufweist,a) The winding rollers (3) are pressed during winding with an adjustable contact force against a driven support roller (4), which has a volume-compressible outer layer (6) with a thickness of at least 5 mm, preferably 15 mm to 30 mm, made of a cellular plastic material with a large number of uniformly distributed pores and a compression modulus K of less than 10 MPa,
b) die einer Wickelrolle (3) zugeführte Bahn ( 1 ) umschlingt die Stützwalze (4) vor dem Nip (7) zwischen der Wickelrolle (3) und der Stützwalze (4) in einem Bereich des Walzenumfangs,b) the web (1) fed to a winding roller (3) wraps around the support roller (4) in front of the nip (7) between the winding roller (3) and the support roller (4) in a region of the roller circumference,
c) in Abhängigkeit von dem Aufbau der Außenschicht (6) wird die Anpreßkraft einer Wickelrolle (3) an die Stützwalze (4) so eingestellt, daß sich ein Nip (7) ausbildet, der eine in Richtung des Walzenumfangs gemessene Breite b vonc) depending on the structure of the outer layer (6), the contact pressure of a winding roller (3) on the support roller (4) is adjusted so that a nip (7) is formed, which has a width b measured in the direction of the roller circumference
- mindestens 5 mm bei einer Endproduktionsgeschwindigkeit von mehr als 1000 m/min,- at least 5 mm at a final production speed of more than 1000 m / min,
- mindestens 15 mm bei einer Endproduktionsgeschwindigkeit von mehr als 2000 m/min,- at least 15 mm at a final production speed of more than 2000 m / min,
- mindestens 40 mm bei einer Endproduktionsgeschwindigkeit von mehr als 3000 m/min und- at least 40 mm at a final production speed of more than 3000 m / min and
- mindestens 70 mm bei einer Endproduktionsgeschwindigkeit von mehr als 4000 m/min hat, d) an der aus dem Nip (7) auslaufenden Bahn (1) wird mittels eines zusätzlichen Umfangs- oder Zentrumsantriebs (13) mit einer Kraft von mindestens 1 N/cm Bahnbreite, vorzugsweise 3 bis 10 N/cm Bahnbreite, gezogen.- has at least 70 mm at a final production speed of more than 4000 m / min, d) the web (1) running out of the nip (7) is pulled by means of an additional circumferential or center drive (13) with a force of at least 1 N / cm web width, preferably 3 to 10 N / cm web width.
2.Second
Wickelmaschine zur Durchführung des Verfahrens nach Patentanspruch 1Winding machine for performing the method according to claim 1
- mit einer Längsschneideeinrichtung (2) zum Aufteilen der Bahn (1) in Einzelbahnen,- With a slitter (2) for dividing the web (1) into individual webs,
- mit beidseits einer angetriebenen Stützwalze (4) angeordneten Wickelstationen, die jeweils aus zwei quer zur Bahnlaufrichtung verfahrbaren Tragelementen (9) bestehen, an denen jeweils ein in die Wickelhülse (14) einfahrbarer Führungskopf (12) und- With winding drives arranged on both sides of a driven support roller (4), each consisting of two support elements (9) which can be moved transversely to the web running direction, on each of which a guide head (12) which can be moved into the winding tube (14) and
- mit einem zusätzlichen Umfangs- oder Zentrumsantrieb (13) zum Antreiben einer Wickelrolle (3) dadurch gek ennzeichnet, daß die Stützwalze (4) aus einen hohlzylinderförmigen Tragkörper (5) aus einem festen Material besteht, auf dessen Mantel eine verformbare, in Kontakt mit der Bahn (1) tretende Außenschicht (6) aufgebracht ist,- With an additional peripheral or center drive (13) for driving a winding roll (3), characterized in that the support roller (4) consists of a hollow cylindrical support body (5) made of a solid material, on the jacket of which a deformable, in contact with the outer layer (6) passing the web (1) is applied,
- die aus einem zelligen Kunststoffmaterial mit einer Vielzahl von gleichmäßig verteilten, in der Kontaktfläche mit der Bahn (1) offenen Poren besteht und ein Kompressionsmodul K von weniger als 10 MPa aufweist, und- Which consists of a cellular plastic material with a plurality of uniformly distributed, in the contact surface with the web (1) open pores and has a compression modulus K of less than 10 MPa, and
- die eine Dicke von mindestens 5 mm, bevorzugt 15 mm bis 30 mm, hat.- Which has a thickness of at least 5 mm, preferably 15 mm to 30 mm.
3.Third
Wickelmaschine nach Anspruch 2, dadurch gekennzei chnet, daß die Außenschicht (6) aus einem zelligen Elastomer, insbesondere Polyurethan, mit einem Kompressionsmodul K zwischen 1 MPa und 5 MPa besteht.Winding machine according to claim 2, characterized in that the outer layer (6) consists of a cellular elastomer, in particular polyurethane, with a compression modulus K between 1 MPa and 5 MPa.
4.4th
Wickelmaschine nach Anspruch 2 oder 3, dadurch gekennzei chnet, daß die Größe der Poren weniger als 5 mm, bevorzugt zwischen 0,05 mm und 1 mm, beträgt. Winding machine according to claim 2 or 3, characterized in that the size of the pores is less than 5 mm, preferably between 0.05 mm and 1 mm.
5.5th
Wickelmaschine nach einem der Ansprüche 1 bis4, dadurch gekenn- zeichnet, daß der Reibbeiwert der Außenschicht (6) zu Papier oder Karton größer als 0,25, bevorzugt größer als 0,4, ist.Winding machine according to one of claims 1 to 4, characterized in that the coefficient of friction of the outer layer (6) on paper or cardboard is greater than 0.25, preferably greater than 0.4.
6.6th
Wickeimaschine nach einem der Ansprüche 2 bis 5, dadurch gekenn- zeichnet, daß an jeder Seite der Maschine gegen eine Wickelrolle (3) andrückbare Druckrollen (7) angeordnet sind, die jeweils eine Außenschicht mit einer Dicke von 5 mm bis 30 mm, bevorzugt 10 mm bis 20 mm, aus einem volumenkompressiblen zelligen Kunststoffmaterial mit den in den Ansprüchen 2 bis 5 beanspruchten Merkmalen aufweisen. Winding machine according to one of claims 2 to 5, characterized in that pressure rollers (7) which can be pressed against a winding roller (3) are arranged on each side of the machine and each have an outer layer with a thickness of 5 mm to 30 mm, preferably 10 mm to 20 mm, from a volume-compressible cellular plastic material with the features claimed in claims 2 to 5.
EP97944802A 1996-09-04 1997-08-28 Winding-up process and machine for winding up paper or cardboard webs Expired - Lifetime EP0925245B1 (en)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
DE29615385U 1996-09-04
DE29615385U DE29615385U1 (en) 1996-01-30 1996-09-04 Roller for a winding machine
WOPCT/EP97/00146 1997-01-15
PCT/EP1997/000146 WO1997028075A1 (en) 1996-01-30 1997-01-15 Roller for a winding machine
DE19731060A DE19731060B4 (en) 1996-09-04 1997-07-19 Process and winding machine for winding paper or cardboard webs
DE19731060 1997-07-19
PCT/EP1997/004680 WO1998009901A1 (en) 1996-09-04 1997-08-28 Winding-up process and machine for winding up paper or cardboard webs

Publications (2)

Publication Number Publication Date
EP0925245A1 true EP0925245A1 (en) 1999-06-30
EP0925245B1 EP0925245B1 (en) 2001-11-28

Family

ID=27217551

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97944802A Expired - Lifetime EP0925245B1 (en) 1996-09-04 1997-08-28 Winding-up process and machine for winding up paper or cardboard webs

Country Status (9)

Country Link
US (1) US6234419B1 (en)
EP (1) EP0925245B1 (en)
JP (1) JP3219776B2 (en)
AT (1) ATE209600T1 (en)
AU (1) AU4618997A (en)
CA (1) CA2264804C (en)
DE (1) DE59705579D1 (en)
ES (1) ES2169435T3 (en)
WO (1) WO1998009901A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5845868A (en) * 1997-07-03 1998-12-08 Valmet-Karlstad Ab Apparatus and method for winding paper
JP2002348002A (en) * 2001-03-21 2002-12-04 Fuji Photo Film Co Ltd Web winding method
JP3955518B2 (en) * 2002-09-19 2007-08-08 富士フイルム株式会社 Polymer film winding method
FI118962B (en) * 2006-04-11 2008-05-30 Metso Paper Inc Procedure for controlling the torque of a wheelchair in a fiber web machine
EP2653421B1 (en) * 2012-04-16 2015-04-15 Valmet Technologies, Inc. Method and device for winding of fiber webs, especially of paper and board webs
EP3281897B1 (en) 2014-11-06 2018-10-24 Valmet Technologies, Inc. Slitter-winder for winding of pulp webs
CN110526010A (en) * 2019-09-11 2019-12-03 江苏奥力广告材料股份有限公司 A kind of press production line coiling machine pressurizing device

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3503567A (en) * 1967-11-20 1970-03-31 Appleton Coated Paper Co Method and means for rewinding pressure-sensitive sheet material
US3565746A (en) * 1969-04-22 1971-02-23 Monsanto Co Composite structures
DE2215342A1 (en) * 1972-03-29 1973-10-18 Reuter Maschinen ANTISTATIC CONVEYOR ROLLERS AND THE PROCESS FOR THEIR PRODUCTION
US4193559A (en) * 1978-04-07 1980-03-18 E. I. Du Pont De Nemours And Company Film web winding assembly
DE3832601C1 (en) * 1988-09-26 1989-12-07 J.M. Voith Gmbh, 7920 Heidenheim, De Winding machine for web-like material, especially paper
DE4012979A1 (en) * 1990-04-24 1991-11-07 Jagenberg Ag METHOD AND DEVICE FOR WINDING MATERIAL SHEETS, ESPECIALLY PAPER OR CARDBOARD SHEETS
DE4014512A1 (en) 1990-05-07 1991-11-14 Jagenberg Ag DEVICE FOR REWINDING MATERIALS
US5240198A (en) * 1991-11-29 1993-08-31 Beloit Technologies, Inc. Compliant roller for a web winding machine
DE4204839C2 (en) 1992-02-18 2003-12-11 Voith Paper Patent Gmbh Winding machine for winding paper or cardboard webs
EP0957052A3 (en) * 1992-03-26 1999-11-24 J.M. Voith GmbH Winder for winding a web, in particular a paper web.
DE4402874A1 (en) * 1994-02-01 1995-08-03 Beloit Technologies Inc System for creating a perfect winding structure
DE9420003U1 (en) 1994-04-26 1995-04-20 Jagenberg Papiertech Gmbh Carrier or support roller for a winding machine
DE4414396C3 (en) * 1994-04-26 2002-02-07 Jagenberg Papiertech Gmbh Carrier or support roller for a winding machine
US5553806A (en) * 1994-05-19 1996-09-10 Beloit Technologies, Inc. Support or pressure roll for a paper roll winder
US5575436A (en) * 1994-05-19 1996-11-19 Beloit Technologies, Inc. Compliant covered roll or drum
DE19505870C2 (en) * 1995-02-21 2000-01-13 Voith Sulzer Papiermasch Gmbh Device for winding or unwinding web-like material, in particular fibrous webs
DE19603211A1 (en) 1996-01-30 1997-07-31 Jagenberg Papiertech Gmbh Pressure roller for continuous winding of paper or cardboard
ATE190962T1 (en) * 1996-01-30 2000-04-15 Jagenberg Papiertech Gmbh ROLLER FOR A WINDING MACHINE
DE19836116A1 (en) * 1998-03-24 2000-03-02 Voith Sulzer Papiertech Patent Roll winder roller

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9809901A1 *

Also Published As

Publication number Publication date
WO1998009901A1 (en) 1998-03-12
DE59705579D1 (en) 2002-01-10
CA2264804A1 (en) 1998-03-12
AU4618997A (en) 1998-03-26
ATE209600T1 (en) 2001-12-15
US6234419B1 (en) 2001-05-22
EP0925245B1 (en) 2001-11-28
JP2000502312A (en) 2000-02-29
ES2169435T3 (en) 2002-07-01
JP3219776B2 (en) 2001-10-15
CA2264804C (en) 2003-04-22

Similar Documents

Publication Publication Date Title
EP0562266B1 (en) Winder for winding a web, in particular a paper web
DE69916444T2 (en) Winding machine for forming large diameter rolls of sheet material with means for inserting a sleeve
EP0879199B1 (en) Roller for a winding machine
EP0778809B1 (en) Method and device for continuously winding up a continuous paper web
DE19603211A1 (en) Pressure roller for continuous winding of paper or cardboard
EP0916603B1 (en) Winding machine and method, especially for a slitter
EP0925245B1 (en) Winding-up process and machine for winding up paper or cardboard webs
EP1591390B1 (en) Reeling machine for continuous winding of a web material
EP0942889B1 (en) Winder for rolling sheets of material, especially for winding paper or cardboard sheets into reels
EP0563344B1 (en) Reeling machine for webs of material, in particular paper or cardboard webs
WO1993015988A1 (en) Machine for winding webs of paper or cardboard
EP1153867A2 (en) Winding machine for continuously winding a material web
DE4409036A1 (en) Winding machine for winding strip of paper or cardboard
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
DE19731060B4 (en) Process and winding machine for winding paper or cardboard webs
EP2582604A1 (en) Winding machine for producing winding rolls from material webs
EP1138620B1 (en) Winding machine with bearing rollers for winding paper or carton material webs
EP2445819A1 (en) Winding machine for continuously winding a fibrous material web
EP0933320B1 (en) Reel winder
EP1038815A2 (en) Winding machine for continuously winding a material web
DE3224020A1 (en) DEVICE AND METHOD FOR ROLLING UP A CREEPING GOODS FROM A CREPING CYLINDER TO A DRIVED REEL
DE2556743C3 (en) Device for winding up a film web
DE4134648A1 (en) Winding machine for paper or cardboard webs - has roller with freely mounted segments set on bending elastic axis with radial bearings
DE202008009998U1 (en) Winding machine for the continuous winding of a material web
DE112004002273T5 (en) Method and device for guiding a web

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

17P Request for examination filed

Effective date: 19990128

AK Designated contracting states

Kind code of ref document: A1

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

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

17Q First examination report despatched

Effective date: 20010201

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 ES FI FR GB IT NL SE

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 FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20011128

Ref country code: GB

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20011128

Ref country code: FR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20011128

REF Corresponds to:

Ref document number: 209600

Country of ref document: AT

Date of ref document: 20011215

Kind code of ref document: T

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

REF Corresponds to:

Ref document number: 59705579

Country of ref document: DE

Date of ref document: 20020110

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
GBV Gb: ep patent (uk) treated as always having been void in accordance with gb section 77(7)/1977 [no translation filed]

Effective date: 20011128

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2169435

Country of ref document: ES

Kind code of ref document: T3

RAP2 Party data changed (patent owner data changed or rights of a patent transferred)

Owner name: VOITH PAPER JAGENBERG GMBH

EN Fr: translation not filed
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
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20050811

Year of fee payment: 9

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

Ref country code: AT

Payment date: 20050816

Year of fee payment: 9

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

Ref country code: ES

Payment date: 20050817

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: 20060828

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

Ref country code: SE

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

Effective date: 20060829

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

Ref country code: IT

Payment date: 20060831

Year of fee payment: 10

EUG Se: european patent has lapsed
REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20060829

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

Ref country code: ES

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

Effective date: 20060829

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

Ref country code: DE

Payment date: 20080822

Year of fee payment: 12

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

Ref country code: FI

Payment date: 20080814

Year of fee payment: 12

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: 20070828

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

Ref country code: FI

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

Effective date: 20090828

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: 20100302