EP0925245B1 - 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 Download PDF

Info

Publication number
EP0925245B1
EP0925245B1 EP97944802A EP97944802A EP0925245B1 EP 0925245 B1 EP0925245 B1 EP 0925245B1 EP 97944802 A EP97944802 A EP 97944802A EP 97944802 A EP97944802 A EP 97944802A EP 0925245 B1 EP0925245 B1 EP 0925245B1
Authority
EP
European Patent Office
Prior art keywords
winding
web
roller
production speed
final production
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.)
Expired - Lifetime
Application number
EP97944802A
Other languages
German (de)
French (fr)
Other versions
EP0925245A1 (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

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H27/00Special constructions, e.g. surface features, of feed or guide rollers for webs
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H18/00Winding webs
    • B65H18/08Web-winding mechanisms
    • B65H18/14Mechanisms in which power is applied to web roll, e.g. to effect continuous advancement of web
    • B65H18/16Mechanisms in which power is applied to web roll, e.g. to effect continuous advancement of web by friction roller
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H18/00Winding webs
    • B65H18/08Web-winding mechanisms
    • B65H18/14Mechanisms in which power is applied to web roll, e.g. to effect continuous advancement of web
    • B65H18/20Mechanisms 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H75/00Storing webs, tapes, or filamentary material, e.g. on reels
    • B65H75/02Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
    • B65H75/18Constructional details
    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01GPRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G27/00Lap- or sliver-winding devices, e.g. for products of cotton scutchers, jute cards, or worsted gill boxes
    • D01G27/02Lap- 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00Handling processes for sheets or webs
    • B65H2301/40Type of handling process
    • B65H2301/41Winding, unwinding
    • B65H2301/414Winding
    • B65H2301/4148Winding slitting
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00Handling processes for sheets or webs
    • B65H2301/40Type of handling process
    • B65H2301/41Winding, unwinding
    • B65H2301/414Winding
    • B65H2301/4148Winding slitting
    • B65H2301/41486Winding slitting winding on two or more winding shafts simultaneously
    • B65H2301/414863Winding slitting winding on two or more winding shafts simultaneously directly against central support roller
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2401/00Materials used for the handling apparatus or parts thereof; Properties thereof
    • B65H2401/10Materials
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00Parts for transporting or guiding the handled material
    • B65H2404/10Rollers
    • B65H2404/13Details of longitudinal profile
    • B65H2404/131Details of longitudinal profile shape
    • B65H2404/1316Details of longitudinal profile shape stepped or grooved
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00Parts for transporting or guiding the handled material
    • B65H2404/10Rollers
    • B65H2404/14Roller pairs
    • B65H2404/144Roller pairs with relative movement of the rollers to / from each other
    • B65H2404/1441Roller pairs with relative movement of the rollers to / from each other involving controlled actuator
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00Parts for transporting or guiding the handled material
    • B65H2404/10Rollers
    • B65H2404/18Rollers composed of several layers
    • B65H2404/181Rollers composed of several layers with cavities or projections at least at one layer
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00Parts for transporting or guiding the handled material
    • B65H2404/10Rollers
    • B65H2404/18Rollers composed of several layers
    • B65H2404/185Rollers composed of several layers easy deformable
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00Parts for transporting or guiding the handled material
    • B65H2404/40Shafts, cylinders, drums, spindles
    • B65H2404/42Arrangement of pairs of drums
    • B65H2404/421Bed arrangement, i.e. involving parallel and spaced drums, e.g. arranged horizontally for supporting a roll to be wound or unwound
    • B65H2404/4214Bed 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00Parts for transporting or guiding the handled material
    • B65H2404/50Surface of the elements in contact with the forwarded or guided material
    • B65H2404/52Surface of the elements in contact with the forwarded or guided material other geometrical properties
    • B65H2404/521Reliefs

Definitions

  • the invention relates to a method for winding paper or cardboard webs on winding tubes and a winding machine for performing the method.
  • EP 0 481 029 B1 describes a winding machine in which the entire Roll weight is carried by the guide heads.
  • the winding rolls are from the side with the desired line force pressed against the support roller.
  • the guide heads are equipped with rotary drives.
  • a backing roll winding machine is known from EP 0 629 172 B1, 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 that Roll weight for the desired line force from a certain winding roll diameter becomes too big, the leaders take on a bigger and bigger size increasing proportion of the roll weight.
  • DE utility model 296 15 385 describes a roller for a winding machine, which has a hollow cylindrical support body made of a solid material whose jacket is a deformable layer is applied, which consists of a cellular Plastic material with a large number of evenly distributed pores and that has a compression modulus ⁇ of less than 10 MPa. It is stated that such a roller advantageously as a backup roller in a backup roller winding machine can be used because it almost eliminates nip-induced stretching of the web.
  • the use of a backup roller with a layer of foamed synthetic Material in a backup roll winding machine is also from the document US-A 3,503,567 known.
  • the layer of a foamed synthetic material has the task of arranging the support roller on both sides of the apex line To be able to press winding rollers against the support roller without damaging the pressure sensitive elements occur in the web.
  • the invention has for its object to provide a method with the highest quality winding rolls can be produced from paper webs, even with a basis weight of less than 150 g / m 2 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 task.
  • the winding rolls are adjustable with a winding Contact force against a driven and partially wrapped by the web Backing roller pressed, which is a volume-compressible outer layer of a cellular Plastic material with a large number of evenly distributed pores and one Compression modulus of less than 10 MPa.
  • the peripheral or center drive is the nip between the backup roller and the winding roll running out and running onto the winding roll with one of the Paper or cardboard type dependent tensile force of at least 1 N / cm web width drawn.
  • the high production speeds are caused by the destruction of the Air boundary layer entering the web on both sides of the web.
  • the laminar air boundary layer is destroyed by the structured contact surface of the backup roller high-frequency vibrating pressure peaks are generated in the nip by the web act and create turbulence in the air boundary layer on both sides of the web.
  • the minimum width of the nip depending 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 a minimum thickness of 5 mm has that Another advantage that it dampens higher-frequency vibrations that the outside Excite back-up roller, e.g. B. excited by winding rolls with profile fluctuations Vibrations. These vibrations are damped and not on the supporting body, forwarded its storage or the rest of the winding system, so it can be vibration-free be wrapped.
  • back-up roller e.g. B. excited by winding rolls with profile fluctuations Vibrations.
  • the formation of the contact surface of the backup roller on the web through the layer cellular plastic material has the further advantage that the coefficient of friction between the back-up roller and the web always remain the same regardless of wear. Unlike z. B. rubber coatings changes when the layer wears No coefficient of friction. A friction coefficient that decreases with wear could increase lead to an annoying slip between the support roller and the web.
  • the subclaims contain preferred, particularly advantageous configurations a winding machine according to the invention.
  • Paper or cardboard web 1 Pulled off from a supply roll, not shown, several meters wide Paper or cardboard web 1 is in the backing roll winding machine by a Slitter 2 divided into individual webs and then into winding rolls 3 wound up.
  • 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 about 1500 mm.
  • the support roller 3 consists of a hollow cylindrical support body 5 from a solid material, in particular steel, which is designed to be sufficiently stable to the forces acting on or against the winding rollers 3 without bending to be able to support.
  • the axial length of the support roller 4 corresponds to the maximum Width of the paper or cardboard web 1 to be processed, which are up to 10 m can.
  • Shaft journals are attached to both end faces of the supporting body 5 with which the support roller 4 is mounted in the frame of the winding machine.
  • a shaft journal is included connected to a rotary drive with which the support roller 4 rotated about its longitudinal axis is to rotate the overlying or adjacent winding rollers 3 during winding.
  • a layer 6 is on the outer lateral surface of the support body 5 of the support roller 4 from a cellular, a variety of pores filled with gas, especially air having and therefore compressible plastic material applied, the one Compression modulus ⁇ less than 10 MPa.
  • the Layer 6 is a cellular elastomer produced by foaming, in particular Polyurethane, which has a compression modulus ⁇ of 1 MPa to 5 MPa. It is important that a large number of relatively small pores over the volume of the layer 6 is evenly distributed.
  • the pore size is preferably smaller than 5 mm
  • a pore size between 0.05 mm and 1 mm has proven 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 open pores to closed pores determines both the compressibility and the ability of the layer inside dissipate any heat generated.
  • the contact surface of the support roller 4 with the web 1 is formed by the outer surface of the layer 6, which therefore towards the web 1 contains open pores.
  • the contact surface to the web 1 is thus with a structure provided, it has small elevations and depressions.
  • Your coefficient of friction with Paper or cardboard is larger than 0.25, preferably larger than 0.4, so that there is no slippage occurs between the web 1 and the backup roller 4. Because no separate outer Running surface is present, this coefficient of friction remains on even with wear Preserve surface.
  • the radially measured thickness of layer 6 is at least 5 mm, preferably 15 mm to 30 mm, so that a sufficiently wide when pressing a winding roll 3 Nip 7 can be formed.
  • Layer 6 preferably consists of individual rings, which are successively drawn over the support body and glued to it. Are preferred with a distance of 50 mm to 300 mm in the circumferential direction extending, ring-shaped and extending to close to the support body 5 grooves with a Width between 3 mm and 8 mm incorporated into the layer 6 from the outside, or it are rings with a width corresponding to this groove spacing at a distance drawn from each other, which corresponds to the groove width.
  • Winding stations are arranged on both sides of the support roller 4, each of which consists of there are two support elements that can be moved parallel to the support roller axis.
  • On each carriage 10 is a guide head 12 with a rotary drive 13 as the center drive attached.
  • the guide heads 12 can be used to hold and drive one Winding roll 3 are inserted into the winding sleeves 14.
  • a additional peripheral drive can be used, e.g. B. one on the winding roll 3rd circumferential, driven roller or a driven belt.
  • the winding stations with the winding rollers 3 are so relative to the support roller 4 arranged that the individual webs 1 fed to the winding rollers 3 support roller 4 in front of the nip 7 in a circumferential area over a distance of at least 50 mm Loop length.
  • the wrap angle of the webs 1 is preferably around Back-up roller 4 more than 15 °, in particular more than 30 °.
  • the lanes will be 1 guided slip-free, therefore the web speed in front of the Nip 7 corresponds to the Circumferential speed of the backup roller 4.
  • the winding stations with the winding rollers 3 arranged on both sides of the apex line of the support roller 4, on which they during of the reeling and of which the roll weights in whole or in part be worn.
  • the individual webs 1 produced in the longitudinal cutting device 2 are fed to the support roller 4 from below and from this to the winding stations fed to both winding lines.
  • winding blocks 9 laterally next to the support roller 4 on the To store floor so that the guide heads 12 carry the entire roll weight.
  • the Winding rolls 3 are then counteracted from the side with the desired contact pressure the backup roller 4 pressed.
  • the Web 1 is 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 in EP 0 481 029-B1.
  • a crossbar 15 is arranged, the lifting by means of a piston-cylinder unit 16 is lowerable.
  • a carriage 17 for each winding station on the cross members 15 movably mounted transversely to the web 1.
  • the piston-cylinder units 20 are able to press the pressure rollers 19 in swing up a non-disturbing rest position, as shown in Figure 1.
  • a non-disturbing rest position as shown in Figure 1.
  • the freely rotatably mounted pressure rollers 19 have an axial length that the minimum Width of a single web to be wound up, i.e. the minimum width of a producible one Corresponds to winding roll 3. Their diameter is 200 mm to 400 mm.
  • each pressure roller 19 also consists of a hollow cylindrical support body solid material, especially steel, on the jacket of an outer layer the same cellular plastic material is applied as it is for the outer layer 6 of the support roller 4 is used.
  • the thickness of the compressible layer Pressure rollers 19 is 5 mm to 30 mm, preferably 10 mm to 20 mm, otherwise their characteristics and their preferred structure correspond to those described above Layer 6 of the backup roller 4.
  • the compressible outer layer of the pressure rollers 19 has the great advantage that it Fluctuations in the uniformity of the winding rolls, the z. B. from profile fluctuations result, balance and so the uniformity of the Ensure contact pressure.
  • the contact pressure is generated in the embodiment according to Figure 1 by the weight of the overlying winding rolls 3, the desired value by relieving the weight by means of the guide heads 12 or - if the roll weight is not yet sufficient - with an additional contact force of the pressure rollers 19 is set. If the guide heads 12 the whole Bear the roll weight, that is, do not take the winding rolls 3 on the back-up roll lie on, the desired contact pressure is generated by the guide heads 12 with a winding roll 3 are pressed towards the support roller 4.
  • 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 in the Nip 7 are generated by the structured contact surface of the support roller 4.
  • the Pressure peaks act through web 1 and dissolve destructive turbulence the laminar air boundary layer on both sides of the web 1. This will make the Air is pumped out between the web layers as it passes through the Nip 7.

Abstract

A process and a winding machine for winding up paper or cardboard utilizes a support roller with a compressible outer layer of at least 5 mm in thickness and a modulus of compression of less than 10 MPa and the contact pressure controlled so that the width of the nip has a minimum value which is a function of the speed with which the web is wound up.

Description

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 performing 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 Tragelementen 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 cut into single webs by slitting Paper or cardboard webs are known winding machines, in which on both sides a central back-up roll consisting of two support elements each are arranged, which the individual webs alternately for winding be fed. Each winding station holds a winding roll by means of the support elements rotatably mounted guide heads that move laterally into the winding tube. The guide heads bear all or part of the weight of the roll for the Wrapping quality decisive line force at the line of contact with the backup roller in to be able to keep a desired low range.

Stand der TechnikState of the art

In 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 rolls are from the side with the desired line force pressed against the support roller. To the Hardness of the winding, especially in the area of small diameters, additionally To be able to influence, the guide heads are equipped with rotary drives.

Aus 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.A backing roll winding machine is known from EP 0 629 172 B1, 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 that Roll weight for the desired line force from a certain winding roll diameter becomes too big, the leaders take on a bigger and bigger size increasing proportion of the roll weight.

Das DE-Gebrauchsmuster 296 15 385 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 κ 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 15 385 describes a roller for a winding machine, which has a hollow cylindrical support body made of a solid material whose jacket is a deformable layer is applied, which consists of a cellular Plastic material with a large number of evenly distributed pores and that has a compression modulus κ of less than 10 MPa. It is stated that such a roller advantageously as a backup roller in a backup roller winding machine can be used because it almost eliminates nip-induced stretching of the web.

Die Verwendung einer Stützwalze mit einer Schicht aus geschäumtem synthetischen Material in einer Stützwalzen- Wickelmaschine ist auch aus dem Dokument US-A 3,503,567 bekannt. Die Schicht aus einem geschäumten synthetischen Material hat die Aufgabe, die beidseits der Scheitellinie der Stützwalze angeordneten Wickelrollen gegen die Stützwalze drücken zu können, ohne daß Beschädigungen der druckempfindlichen Elemente in der Bahn auftreten.The use of a backup roller with a layer of foamed synthetic Material in a backup roll winding machine is also from the document US-A 3,503,567 known. The layer of a foamed synthetic material has the task of arranging the support roller on both sides of the apex line To be able to press winding rollers against the support roller without damaging the pressure sensitive elements occur in 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 150 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 can be produced from paper webs, even with a basis weight of less than 150 g / m 2 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 task.

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 zusätzlichen 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.According to the invention, the winding rolls are adjustable with a winding Contact force against a driven and partially wrapped by the web Backing roller pressed, which is a volume-compressible outer layer of a cellular Plastic material with a large number of evenly distributed pores and one Compression modulus of less than 10 MPa. By means of an additional The peripheral or center drive is the nip between the backup roller and the winding roll running out and running onto the winding roll with one of the Paper or cardboard type dependent tensile force of at least 1 N / cm web width drawn. 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 roller by reducing the effective radius of the backup roller by the Volume compression of the outer layer occurs in the nip. To compensate for the differential speed the web is pulled through the nip, which is slip-free by local Deformation of the covering in the direction of web travel is made possible.

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 Kontaktfläche 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 caused by the destruction of the Air boundary layer entering the web on both sides of the web. The at If the web runs onto the winding roll in the nip, the air boundary layer leads to increasing speeds to problems in the winding structure. The laminar air boundary layer is destroyed by the structured contact surface of the backup roller high-frequency vibrating pressure peaks are generated in the nip by the web act and create turbulence in the air boundary layer on both sides of the web. The minimum width of the nip depending 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 a minimum thickness of 5 mm has that Another advantage that it dampens higher-frequency vibrations that the outside Excite back-up roller, e.g. B. excited by winding rolls with profile fluctuations Vibrations. These vibrations are damped and not on the supporting body, forwarded its storage or the rest of the winding system, so it can be vibration-free be wrapped.

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 backup roller on the web through the layer cellular plastic material has the further advantage that the coefficient of friction between the back-up roller and the web always remain the same regardless of wear. Unlike z. B. rubber coatings changes when the layer wears No coefficient of friction. A friction coefficient that decreases with wear could increase lead to an annoying slip between the support roller and the web.

Die Unteransprüche enthalten bevorzugte, das besonders vorteilhafte Ausgestaltungen einer erfindungsgemäßen Wickelmaschine. The subclaims contain preferred, particularly advantageous configurations a winding machine according to the invention.

Kurze Beschreibung der ZeichnungBrief description of the drawing

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

Fig. 1
zeigt eine Seitenansicht einer Stützwalzen-Wickelmaschine nach der Erfindung.
Fig. 2
zeigt in einer Prinzipskizze den Bereich des Nips zwischen Stützwalze und Wickelrolle
The drawing serves to explain the invention with reference to an embodiment shown in simplified form.
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 nips 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 einer Längsschneidevorrichtung 2 in Einzelbahnen aufgeteilt und anschließend zu Wickelrollen 3 aufgewickelt.Pulled off from a supply roll, not shown, several meters wide Paper or cardboard web 1 is in the backing roll winding machine by a Slitter 2 divided into individual webs and then into winding rolls 3 wound up.

Die Wickelmaschine enthält eine angetriebene Stützwalze 4 mit einem Durchmesser von mehr als 500 mm, bevorzugt mehr als 750 mm, im Beispiel von ca. 1500 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 about 1500 mm. The support roller 3 consists of a hollow cylindrical support body 5 from a solid material, in particular steel, which is designed to be sufficiently stable to the forces acting on or against the winding rollers 3 without bending to be able to support. The axial length of the support roller 4 corresponds to the maximum Width of the paper or cardboard web 1 to be processed, which are up to 10 m can. Shaft journals are attached to both end faces of the supporting body 5 with which the support roller 4 is mounted in the frame of the winding machine. A shaft journal is included connected to a rotary drive with which the support roller 4 rotated about its longitudinal axis is to rotate the overlying or adjacent winding rollers 3 during winding.

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 κ von weniger als 10 MPa aufweist. Vorzugsweise wird für die Schicht 6 ein durch Schäumen hergestelltes zelliges Elastomer, insbesondere Polyurethan, verwendet, das ein Kompressionsmodul κ 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 äußere Laufschicht vorhanden ist, bleibt dieser Reibbeiwert auch bei einem Verschleiß an der Oberfläche erhalten.A layer 6 is on the outer lateral surface of the support body 5 of the support roller 4 from a cellular, a variety of pores filled with gas, especially air having and therefore compressible plastic material applied, the one Compression modulus κ less than 10 MPa. Preferably for the Layer 6 is a cellular elastomer produced by foaming, in particular Polyurethane, which has a compression modulus κ of 1 MPa to 5 MPa. It is important that a large number of relatively small pores over the volume of the layer 6 is evenly distributed. The pore size is preferably smaller than 5 mm A pore size between 0.05 mm and 1 mm has proven 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 open pores to closed pores determines both the compressibility and the ability of the layer inside dissipate any heat generated. The contact surface of the support roller 4 with the web 1 is formed by the outer surface of the layer 6, which therefore towards the web 1 contains open pores. The contact surface to the web 1 is thus with a structure provided, it has small elevations and depressions. Your coefficient of friction with Paper or cardboard is larger than 0.25, preferably larger than 0.4, so that there is no slippage occurs between the web 1 and the backup roller 4. Because no separate outer Running surface is present, this coefficient of friction remains on even with wear Preserve surface.

Die radial gemessene Dicke der Schicht 6 beträgt mindestens 5 mm, bevorzugt 15 mm bis 30 mm, so daß beim Andrücken einer Wickelrolle 3 ein ausreichend breiter 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 Umfangsrichtung verlaufende, ringförmige und bis nahe an den Tragkörper 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.The radially measured thickness of layer 6 is at least 5 mm, preferably 15 mm to 30 mm, so that a sufficiently wide when pressing a winding roll 3 Nip 7 can be formed. Layer 6 preferably consists of individual rings, which are successively drawn over the support body and glued to it. Are preferred with a distance of 50 mm to 300 mm in the circumferential direction extending, ring-shaped and extending to close to the support body 5 grooves with a Width between 3 mm and 8 mm incorporated into the layer 6 from the outside, or it are rings with a width corresponding to this groove spacing at a distance drawn from each other, which 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 11 in etwa radial zur Stützwalze 4 verfahrbar gelagert. An jedem Schlitten 10 ist ein Führungskopf 12 mit einem Drehantrieb 13 als Zentrumsantrieb befestigt. Die Führungsköpfe 12 können zum Halten und Antreiben einer Wickelrolle 3 in deren Wickelhülsen 14 eingefahren werden. Anstelle eines als Zentrumsantrieb arbeitenden Drehantriebs 13 für die Führungsköpfe 12 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 consists of there are two support elements that can be moved parallel to the support roller axis. in the present example are the support elements in the frame 8 of the winding machine mounted trestles 9, as is the use of trestles mounted on the floor or possible from swiveling support arms. On each support element - in present example on each winding block 9 - is a carriage 10 by means of a Piston-cylinder unit 11 is mounted such that it can be moved approximately radially to the support roller 4. On each carriage 10 is a guide head 12 with a rotary drive 13 as the center drive attached. The guide heads 12 can be used to hold and drive one Winding roll 3 are inserted into the winding sleeves 14. Instead of one as Center drive rotating actuator 13 for the guide heads 12 can also be a additional peripheral drive can be used, e.g. B. one on the winding roll 3rd circumferential, 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 15°, 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 so relative to the support roller 4 arranged that the individual webs 1 fed to the winding rollers 3 support roller 4 in front of the nip 7 in a circumferential area over a distance of at least 50 mm Loop length. The wrap angle of the webs 1 is preferably around Back-up roller 4 more than 15 °, in particular more than 30 °. The lanes will be 1 guided slip-free, therefore the web speed in front of the Nip 7 corresponds to the Circumferential speed of the backup roller 4.

Im vorliegenden Ausführungsbeispiel sind die Wickelstationen mit den Wickelrollen 3 zu beiden Seiten der Scheitellinie der Stützwalze 4 angeordnet, an der sie während des Aufwickelns 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 arranged on both sides of the apex line of the support roller 4, on which they during of the reeling and of which the roll weights in whole or in part be worn. The individual webs 1 produced in the longitudinal cutting device 2 are fed to the support roller 4 from below and from this to the winding stations fed to both 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. It is also possible that the winding blocks 9 laterally next to the support roller 4 on the To store floor so that the guide heads 12 carry the entire roll weight. The Winding rolls 3 are then counteracted from the side with the desired contact pressure the backup roller 4 pressed. In this embodiment, the Web 1 is 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 in EP 0 481 029-B1.

Mit Abstand neben der Stützwalze 4 ist an jeder Seite im Gestell 8 der Wickelmaschine eine Quertraverse 15 angeordnet, die mittels einer Kolben-Zylinder-Einheit 16 hebund senkbar ist. An den Quertraversen 15 ist für jede Wickelstation ein Schlitten 17 quer zur Bahn 1 verfahrbar gelagert. An jedem Schlitten 17 ist ein Schwenkarm 18 angelenkt, der an seinem Ende ein Druckrollenpaar 19 trägt, das mittels einer Kolben-Zylinder-Einheit 20 gegen den Umfang einer Wickelrolle 3 anschwenkbar ist. Mit den Druckrollen 19 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 19 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 15 mit den daran befestigten Druckrollen 19 ausreichend hoch bewegt werden.At a distance next to the support roller 4 is on each side in the frame 8 of the winding machine a crossbar 15 is arranged, the lifting by means of a piston-cylinder unit 16 is lowerable. There is a carriage 17 for each winding station on the cross members 15 movably mounted transversely to the web 1. There is a swivel arm 18 on each slide 17 articulated, which carries at its end a pair of pressure rollers 19 by means of a piston-cylinder unit 20 can be pivoted against the circumference of a winding roll 3. With the Pressure rollers 19 will be at the start of winding up if the bed weight is not yet is sufficient, the contact pressure in the nip 7 increased to the desired winding hardness to reach. The piston-cylinder units 20 are able to press the pressure rollers 19 in swing up a non-disturbing rest position, as shown in Figure 1. Around to be able to remove a finished winding roll 3 from the winding machine Traverse 15 with the pressure rollers 19 attached to it moved sufficiently high become.

Die frei drehbar gelagerten Druckrollen 19 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 Kunststoffmaterial aufgebracht ist, wie es für die Außenschicht 6 der Stützwalze 4 verwendet wird. Die Dicke der kompressiblen Schicht der Druckrollen 19 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.The freely rotatably mounted pressure rollers 19 have an axial length that the minimum Width of a single web to be wound up, i.e. the minimum width of a producible one Corresponds to winding roll 3. Their diameter is 200 mm to 400 mm. Prefers each pressure roller 19 also consists of a hollow cylindrical support body solid material, especially steel, on the jacket of an outer layer the same cellular plastic material is applied as it is for the outer layer 6 of the support roller 4 is used. The thickness of the compressible layer Pressure rollers 19 is 5 mm to 30 mm, preferably 10 mm to 20 mm, otherwise their characteristics and their preferred structure correspond to those described above Layer 6 of the backup roller 4.

Die kompressible Außenschicht der Druckrollen 19 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 19 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. The compressible outer layer of the pressure rollers 19 has the great advantage that it Fluctuations in the uniformity of the winding rolls, the z. B. from profile fluctuations result, balance and so the uniformity of the Ensure contact pressure. In addition, the so constructed Pressure rollers 19 with higher pressures than steel rollers or rollers with a rubber cover press against a winding roll 3 without unwanted folds on the edges arise. This enables winding rolls 3 with greater winding hardness in the core area to wind the winding tube 14.

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 12 oder - falls das Rollengewicht noch nicht ausreicht - durch eine zusätzliche Anpreßkraft von den Druckrollen 19 eingestellt wird. Falls die Führungsköpfe 12 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.When winding the winding rollers 3 with an adjustable contact pressure against the backup roller 4 pressed. The contact pressure is generated in the embodiment according to Figure 1 by the weight of the overlying winding rolls 3, the desired value by relieving the weight by means of the guide heads 12 or - if the roll weight is not yet sufficient - with an additional contact force of the pressure rollers 19 is set. If the guide heads 12 the whole Bear the roll weight, that is, do not take the winding rolls 3 on the back-up roll lie on, the desired contact pressure is generated by the guide heads 12 with a winding roll 3 are pressed towards 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 als 1000 m/min,
  • mindestens 15 mm bei einer Endproduktionsgeschwindigkeit von mehr als 2000 m/min,
  • mindestens 40 mm bei einer Endproduktionsgeschwindigkeit von mehr als 3000 m/min und
  • mindestens 70 mm bei einer Endproduktionsgeschwindigkeit von mehr als 4000 m/min hat.
Depending 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 measured in the direction of the roller circumference
  • at least 5 mm at a final production speed of more than 1000 m / min,
  • at least 15 mm at a final production speed of more than 2000 m / min,
  • at least 40 mm at a final production speed of more than 3000 m / min and
  • 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 in the Nip 7 are generated by the structured contact surface of the support roller 4. The Pressure peaks act through web 1 and dissolve destructive turbulence the laminar air boundary layer on both sides of the web 1. This will make the Air is pumped out between the web layers 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 12 - 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, those that run out of the nip 7 become and webs 1 running onto the winding rolls 3 by means of an additional one Center drive - the rotary drives 13 of the guide heads 12 - and / or by an additional peripheral drive with a tensile force depending on the paper type of at least 1 N / cm web width, preferably 3 to 10 N / cm web width, drawn.

Claims (6)

  1. Method for the winding-up of a paper or cardboard web, in particular of a paper web (1) with a weight per unit area of less than 150 g/m2, onto a winding tube (14), having the following features:
    a) during the winding-up operation, the winding roll (3) is pressed with an adjustable pressing force against a driven supporting roller (4) which has an outer layer (6) of compressible volume, with a thickness of at least 5 mm, preferably 15 mm to 30 mm, composed of a cellular plastic material with a multiplicity of uniformly distributed pores and with a bulk modulus κ of less than 10 MPa,
    b) the web (1) fed to the winding roll (3) loops around the supporting roller (4) upstream of the nip (7) between the winding roll (3) and the supporting roller (4) in a region of the roller circumference,
    c) the pressing force of the winding roll (3) against the supporting roller (4) is set as a function of the make-up of the outer layer (6), in such a way as to form a nip (7) which has a width b, measured in the direction of the roller circumference, of
    at least 5 mm at a final production speed of more than 1000 m/min,
    at least 15 mm at a final production speed of more than 2000 m/min,
    at least 40 mm at a final production speed of more than 3000 m/min, and
    at least 70 mm at a final production speed of more than 4000m/min, and
    d) at the web (1) running out of the nip (7), said web is drawn with a force of at least 1 N/cm of web width, preferably 3 to 10 N/cm of web width, by means of an additional circumferential or central drive (13).
  2. Winding machine for the winding-up of a paper or cardboard web (1) into winding rolls (3),
    with a longitudinal-cutting device (2) for dividing the web (1) into individual webs,
    with a driven supporting roller (4), around which the web (1) is looped in a region of its roller circumference,
    with winding stations which are arranged on both sides of the supporting roller (4) and consist in each case of two carrying elements (9) which are moveable transversely to the web running direction and to each of which is fastened a guide head (12) capable of being moved into the winding tube (14), and
    with an additional circumferential or central drive (13) for driving a winding roll (3),
    characterized in that the supporting roller (4) consists of a hollow-cylindrical carrying body (5) made of a firm material, on the casing of which is attached a deformable outer layer (6) which comes into contact with the web (1),
    which consists of a cellular plastic material with a multiplicity of uniformly distributed pores open in the surface of contact with the web (1) and has a bulk modulus κ of less than 10 MPa, and
    which has a thickness of at least 5 mm, preferably 15 mm to 30 mm, and in that
    there are means for setting the pressing force of a winding roller (3) against the supporting roller (4) in such a way as to form a nip (7) which has a width b, measured in the direction of the roller circumference, of
    at least 5 mm at a final production speed of more than 1000 m/min,
    at least 15 mm at a final production speed of more than 2000 m/min,
    at least 40 mm at a final production speed of more than 3000 m/min, and
    at least 70 mm at a final production speed of more than 4000 m/min.
  3. Winding machine according to Claim 2, characterized in that the outer layer (6) consists of a cellular elastomer, in particular polyurethane, with a bulk modulus κ of between 1 MPa and 5 MPa.
  4. 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. Winding machine according to one of Claims 2 to 4, characterized in that the coefficient of friction of the outer layer (6) in relation to paper or cardboard is greater than 0.25 , preferably greater than 0.4.
  6. Winding machine according to one of Claims 2 to 5, characterized in that pressure rolls (7) capable of being pressed against a winding roll (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, composed of a cellular plastic material of compressible volume, having 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 DE29615385U1 (en) 1996-01-30 1996-09-04 Roller for a winding machine
DE29615385U 1996-09-04
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 EP0925245A1 (en) 1999-06-30
EP0925245B1 true 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
EP3018082A1 (en) 2014-11-06 2016-05-11 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
DE59310072D1 (en) * 1992-03-26 2000-08-17 Voith Gmbh J M Winding machine 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
DE4414396C3 (en) * 1994-04-26 2002-02-07 Jagenberg Papiertech Gmbh Carrier or support roller for a winding machine
DE9420003U1 (en) * 1994-04-26 1995-04-20 Jagenberg Papiertech Gmbh Carrier or support roller for a winding machine
US5575436A (en) * 1994-05-19 1996-11-19 Beloit Technologies, Inc. Compliant covered roll or drum
US5553806A (en) * 1994-05-19 1996-09-10 Beloit Technologies, Inc. Support or pressure roll for a paper roll winder
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
US6056230A (en) * 1996-01-30 2000-05-02 Jagenberg Papiertechnik Gmbh Roller for a winding machine
DE19836116A1 (en) * 1998-03-24 2000-03-02 Voith Sulzer Papiertech Patent Roll winder roller

Also Published As

Publication number Publication date
CA2264804C (en) 2003-04-22
WO1998009901A1 (en) 1998-03-12
ATE209600T1 (en) 2001-12-15
US6234419B1 (en) 2001-05-22
DE59705579D1 (en) 2002-01-10
JP2000502312A (en) 2000-02-29
ES2169435T3 (en) 2002-07-01
CA2264804A1 (en) 1998-03-12
AU4618997A (en) 1998-03-26
EP0925245A1 (en) 1999-06-30
JP3219776B2 (en) 2001-10-15

Similar Documents

Publication Publication Date Title
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
DE2325794A1 (en) WINDING DEVICE
EP0925245B1 (en) Winding-up process and machine for winding up paper or cardboard webs
EP0916603B1 (en) Winding machine and method, especially for a slitter
EP0629172B1 (en) Machine for winding webs of paper or cardboard
EP0942889B1 (en) Winder for rolling sheets of material, especially for winding paper or cardboard sheets into reels
EP3328767A1 (en) Arrangement for winding a web of material
EP0563344B1 (en) Reeling machine for webs of material, in particular paper or cardboard webs
DE2310137A1 (en) ROLLER FOR PAPER TRACKS OR THE SAME
DE19731060B4 (en) Process and winding machine for winding paper or cardboard webs
DE4409036A1 (en) Winding machine for winding strip of paper or cardboard
EP1153867A2 (en) Winding machine for continuously winding a material web
EP1138620B1 (en) Winding machine with bearing rollers for winding paper or carton material webs
EP2582604A1 (en) Winding machine for producing winding rolls from material webs
EP0896940B1 (en) Winding apparatus, in particular in a slitter rewinder
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
DE19908496A1 (en) Machine for continuous reeling of materials, in particular, paper and cardboard comprises air excluder unit in form of compound element consisting of main body and low-friction lining on its working surface
EP1206403B1 (en) Slitter-winder
DE2556743B2 (en) Device for winding up a film web
DE112004002273T5 (en) Method and device for guiding a web
DE202008009998U1 (en) Winding machine for the continuous winding of a material web
DE202015102406U1 (en) Pressure rolling device
DE19720172A1 (en) Roll cutting device

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