EP0602199A1 - Support-roller-type winding machine. - Google Patents

Support-roller-type winding machine.

Info

Publication number
EP0602199A1
EP0602199A1 EP93911771A EP93911771A EP0602199A1 EP 0602199 A1 EP0602199 A1 EP 0602199A1 EP 93911771 A EP93911771 A EP 93911771A EP 93911771 A EP93911771 A EP 93911771A EP 0602199 A1 EP0602199 A1 EP 0602199A1
Authority
EP
European Patent Office
Prior art keywords
support
winding
tear
air box
roller
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
EP93911771A
Other languages
German (de)
French (fr)
Other versions
EP0602199B1 (en
Inventor
Herbert Schoenmeier
Peter Hoffmann
Hartmut Dropczynski
Reinhard Schoenen
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 AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Jagenberg AG filed Critical Jagenberg AG
Publication of EP0602199A1 publication Critical patent/EP0602199A1/en
Application granted granted Critical
Publication of EP0602199B1 publication Critical patent/EP0602199B1/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
    • 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
    • B65H19/00—Changing the web roll
    • B65H19/22—Changing the web roll in winding mechanisms or in connection with winding operations
    • B65H19/26—Cutting-off the web running to the wound web roll
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/41—Winding, unwinding
    • B65H2301/417—Handling or changing web rolls
    • B65H2301/4187—Relative movement of core or web roll in respect of mandrel
    • B65H2301/4189—Cutting
    • B65H2301/41891—Cutting knife located between two winding rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2406/00—Means using fluid
    • B65H2406/10—Means using fluid made only for exhausting gaseous medium
    • B65H2406/13—Means using fluid made only for exhausting gaseous medium pressure arrangement for compensating weight of handled material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2406/00—Means using fluid
    • B65H2406/10—Means using fluid made only for exhausting gaseous medium
    • B65H2406/13—Means using fluid made only for exhausting gaseous medium pressure arrangement for compensating weight of handled material
    • B65H2406/131—Means using fluid made only for exhausting gaseous medium pressure arrangement for compensating weight of handled material in combination with rollers or drums

Definitions

  • the invention relates to a support roller winding machine for winding material webs, in particular paper or cardboard webs, onto cores according to the preamble of patent claim 1.
  • Such winding machines are used for the production of winding rolls from the material web divided by longitudinal section. When winding, the winding rolls lie axially aligned on the two support rollers.
  • the air box can be swung down from an upper working position, in which its side surfaces lie sealingly against the support rollers, into a position below a support roller. The swiveling down creates space for a separate separating knife, which can be raised from below through the support roller nip, on the tear-off blade of which the web tears off when the full winding rolls are ejected.
  • the invention has for its object to improve a generic support roller winding machine so that a roll change can be carried out in a shorter time with space-saving design.
  • the arrangement of the cutting knife support with the tear-off blade in the air box takes up less space than a separate cutting knife.
  • the air box does not need to be lowered for a roll change. Lowering is only necessary to insert a new web or in the event of a paper jam.
  • the roll change can be carried out more quickly, since the tear-off blade of the separating knife can be moved up into its separating position in the roller bed without first swiveling the air box away.
  • the subclaims contain preferred, since particularly advantageous, embodiments of the invention.
  • Fig. 1 roughly schematically shows a side view of a section of a support roller winding machine according to the invention.
  • Fig. 2 is an enlarged view of a cross section through the air box with the cutting knife in the rest position
  • Fig. 3 shows a cross section in which the tear-off blade of the cutting knife is in the cutting position.
  • the support roller winding machine has two driven support rollers 1, 2, between which a roller bed 3 is formed, in which the winding rollers 4 lie on the support rollers 1, 2 during winding.
  • the material web 5, which is divided into individual webs in the longitudinal direction - preferably a paper or cardboard web - is deflected by the support roller 1 from below through the gap between the support rollers 1, 2 into the support roller bed 3 and wound there on sleeves 6 aligned.
  • the completely wound winding rolls 4 are pressed by an ejection bar, not shown, over the support roller 2 onto a lowering platform 7, from which the winding rolls 4 are lowered for unloading.
  • an excess pressure can be generated in the space delimited by the support rollers 1, 2 and the winding rollers 6 with compressed air.
  • an air box 8 with a compressed air supply is in the lower gusset between the two support rollers 1, 2 9 arranged, which extends over the axial length of the support rollers 1, 2 and the side surfaces facing the support rollers 1, 2 are curved in the upper part adapted to the lateral surfaces of the support rollers 1, 2, so that they can seal against them.
  • a plurality of axially extending felt strips are inserted on the outside, which seal the air box 8 against the support rollers 2 with minimal friction.
  • the air box 8 is attached to swivel arms 10 which are mounted in the frame of the machine. It can thus be lowered from its upper sealing position to a rest position - shown in broken lines in FIG. 1 - for example in order to introduce a new web 5. In the upper sealing position, its upper part extends to the narrowest point between the two support rollers 1, 2.
  • the upper boundary surface facing the support roller nip has an air outlet slot 1 1 which extends at least over the minimum web width and is on both machine sides as a guide surface for two End-side sealing elements 12 arranged on both sides of the machine are formed.
  • the shape of the end sealing elements 12 is adapted to the free cross-sectional area between the support rollers 1, 2, its upper part being elongated in a rectangular shape up to above the connecting line between the two vertices of the support rollers 1, 2, in order to provide a sufficient sealing surface for winding rollers 4 with a large diameter to back up. They are slidably mounted in the axial direction - that is to say transversely to the path 5 - on lateral pivot arms 13, the pivot axis of which runs somewhat eccentrically offset to the outside on the connecting line between the two carrier roller axes.
  • the sealing elements 12 can thus be pivoted out of the roller bed 3 over the support roller 2 into a position in which the lateral guide heads can be moved into the sleeves 6.
  • the low eccentricity means that the side surfaces of the sealing elements 12 facing the support rollers 1, 2 move somewhat away from the respective support roller surface when swiveling out, for example in order to be able to remove paper residues.
  • a separating knife 14 is arranged with a tear-off blade 15 which, in the sealing position of the air box 8, can be moved up into the roller bed 3 and lowered into the air box 8.
  • the tear-off blade 15 is lowered in FIG. 2, and in FIG. 3 it is in its separation position in the roller bed 3.
  • the tear-off blade 15 extends over the entire length of the feed slot 15, that is to say essentially over the entire machine width. It is attached to the end of a likewise machine-wide holder 1 6 in the form of a two-sided lever, which is articulated approximately in the middle at the end of a vertical support 18 about an axis 17 parallel to the support roller axes.
  • the support 18 is attached to the end of the piston rods 19 by vertical, hydraulic piston-cylinder units, the cylinders 20 of which are screwed onto the bottom of the air box 8 and are thus supported on the latter.
  • the cylinders 21 are fastened by pneumatic piston-cylinder units, the piston rods 22 of which extend vertically upwards.
  • the end of the piston rods 22 is connected in an articulated manner to the holder via lever 23 in such a way that the articulation points 24 with the holder 1 6, when the piston rods 22 are completely retracted, are somewhat offset relative to the articulation points 25 with the piston rods 22 in the direction of the supporting roller 2.
  • the tear-off blade 15 is clearly moved in the direction of the support roller 1 when the piston rods 22 are extended, as shown in FIG. 3. So that the holder 16 and the levers 23 can be stretched, the support 18 has cutouts in its upper part, into which these can be moved.
  • the end of the lever 1 6 facing away from the tear-off blade 15 consists of individual, spaced-apart tabs, one of the levers 23 being articulated alternately at the end of the respective tabs, or a freely rotatable wheel 26 being mounted.
  • the axis of rotation of the freely rotatable wheels 26 extends coaxially to the articulation points 24.
  • There are also recesses in the support 18 for the wheels 26 thus offset in the axial direction from the levers 23, into which they can be moved.
  • the lower part of the support 18 with the piston-cylinder units 21, 22 is guided on vertical guides 27 which are arranged in the upper part of the air box 8.
  • the entire cutting knife with its lifting mechanism is arranged in the air box 8. It is also possible to fasten the cylinder 20 of the piston-cylinder unit 19, 20 on the outside on the underside of the air box 8 and to guide the piston rod 19 in a sealed manner through the bottom of the air box 8.
  • the separating knife 14 can be divided into individual (for example four at 8 m working width) segments which are successively arranged in the axial direction. Each of these segments then consists of the parts which extend continuously over the segment width (tear-off blade 15, holder 16, support 18), which are moved up and down by two lateral piston-cylinder units 19, 20 and in which the tilting movement of the Tear-off blade 15 is effected by 2 lateral piston-cylinder units 21, 22 attached to the lower part of the support 8.
  • the end sealing elements 12 are pivoted into the roll bed 3 and moved axially against the end faces of the winding rolls 4.
  • the air box 8 is pivoted up so that the lower gusset between the support rollers 1, 2 is sealed and the sealing elements 12 can be placed on its upper boundary surface. They seal the air outlet slot 1 1 outside the winding roll area.
  • the compressed air supply is switched off, the end sealing elements 1 2 are pivoted out of the roller bed 3 and the tear-off blade 15 of the cutting knife 14 is moved into the cutting position shown in FIG. 3.
  • compressed air is first introduced into the cylinders 21 initiated and so the piston 22 biased.
  • a tilting movement of the holder 1 6 is not yet possible, since a lateral movement of the wheels 26 in the direction of the support roller 2 is prevented by the guide rails.
  • the piston-cylinder units 19, 20 move the tear-off blades 15 upward. As soon as the wheels 26 have left the air box 8 at the top, they are guided by the support roller 2.
  • the tear-off blade 15 when the tear-off blade 15 is moved upward, a tilting movement takes place in the direction of the supporting roller 1 without the piston-cylinder units 21, 22 having to be controlled.
  • the height of the support 18, the width of the holder 16 and the stroke of the pistons 22 are selected so that the tear-off blade 15 moves exactly into its separation position in the roller bed 3 with a short distance from the wrapped support roller 1 when the piston rods 19 are raised.
  • the full winding rolls 4 are then ejected via the non-looped support roller 2, the web 5 tearing off on the tear-off blade 15.
  • the new web start created in this way is held on the support roller 1, for example sucked onto it with a vacuum.
  • the tear-off blade 15 is then sunk again into the air box 8.
  • the piston-cylinder units 19, 20 move the support 18 with all the parts attached to it until the tear-off blade 15 is in the air box 8 is located.
  • the support rollers 1, 2 are rotated again and the winding is started again.

Abstract

PCT No. PCT/EP93/00965 Sec. 371 Date Jan. 21, 1994 Sec. 102(e) Date Jan. 21, 1994 PCT Filed Apr. 21, 1993 PCT Pub. No. WO93/25461 PCT Pub. Date Dec. 23, 1993.For winding webs of material on cores winding machines have two support rollers on which the winding rolls are supported during winding. The web is guided from underneath through the gap between the support cylinders. When the winding rolls are exchanged, for the cutting of the web a cutting knife with a tear-off blade is raised through the gap between the support cylinders up to the cylinder bed. In order to reduce the bearing load of the winding rolls on the support cylinders in the lower wedge between the two support cylinders an air box extending over the work width and having a compressed air supply line is provided, which seals the gap between the support cylinders and has an air exit slot open towards this gap. The tear-off blade of the cutting knife is attached to a support arranged in the air box and can be moved up and down through the air exit slot into the cutting position in the cylinder bed and completely lowered into the air box.

Description

B E S C H R E I B U N G DESCRIPTION
Tragwalzen-WickeimaschineCarrier roll wrapping machine
Technisches GebietTechnical field
Die Erfindung betrifft eine Tragwalzen-Wickelmaschine zum Aufwickeln von Materialbahnen, insbesondere Papier- oder Kartonbahnen, auf Hülsen gemäß dem Oberbegriff des Patentanspruchs 1 . Derartige Wickelmaschinen dienen zur Herstellung von Wickelrollen aus der durch Längsschnitt unterteilten Materialbahnen. Die Wickelrollen liegen beim Aufwickeln axial fluchtend auf den beiden Tragwalzen.The invention relates to a support roller winding machine for winding material webs, in particular paper or cardboard webs, onto cores according to the preamble of patent claim 1. Such winding machines are used for the production of winding rolls from the material web divided by longitudinal section. When winding, the winding rolls lie axially aligned on the two support rollers.
Stand der TechnikState of the art
Um die durch einen Wickelrollenwechsel bedingten Maschinenstillstandszeiten möglichst gering zu halten, ist es aus der DE-OS 2920707 bekannt, die Materialbahn in dem von den Tragwalzen gebildeten Walzenbett mittels einer durch den Tragwalzenspalt hochfahrbaren Trenneinrichtung mit einer Abreißklinge beim Ausstoßen der vollen Wickelrollen durchzutrennen. Der beim Durchtrennen neu geschaffene Bahnanfang wird durch Unterdruck auf der umschlungenen Tragwalze festgehalten, bis ein Satz neuer Hülsen in das Walzenbett eingelegt ist. Aus der WO 92/03366 ist eine gattungsgemäße Tragwalzen-Wickeimaschine bekannt, bei der in dem von den Tragwalzen und den Wickelrollen begrenzten Raum mittels Druckluft ein Überdruck erzeugt wird. Der Überdruck verringert das Auf lagegewicht und somit die Linienlast ( = Auf lagengewicht pro Breite einer Wickelrolle) an den beiden Auflagelinien der Wickelrollen auf den Tragwalzen, von der die Wickelhärte einer Wickelrolle entscheidend beeinflußt wird. Durch die Entlastung lassen sich Wickelrollen mit sehr großem Durchmesser (mehr als 800 mm) mit sehr guter Wickelqualtiät wickeln. Nach einer Ausführungsform ist im Bereich des unteren Zwickels zwischen den Tragwalzen ein Luftkasten angeordnet, der sich über die gesamte Arbeitsbreite ( = axiale Länge der Tragwalzen) erstreckt und mit einer Druckluftzufuhr versehen ist. Der Luftkasten ist von einer oberen Arbeitsposition, in der seine Seitenflächen dichtend an den Tragwalzen anliegen bis in eine Position unterhalb einer Tragwalze niederschwenkbar. Das Niederschwenken schafft Platz für ein getrenntes, von unten durch den Tragwalzenspalt hochfahrbares Trennmesser, an dessen Abreißklinge die Bahn beim Ausstoßen der vollen Wickelrollen abreißt.In order to keep the machine downtimes caused by changing the winding reels as short as possible, it is known from DE-OS 2920707 to sever the material web in the roller bed formed by the supporting rollers by means of a separating device which can be raised by the supporting roller gap with a tear-off blade when the full winding reels are ejected. The newly created path start is cut by negative pressure on the wrapped roller until a set of new sleeves is inserted into the roller bed. From WO 92/03366 a generic support roller winding machine is known, in which an overpressure is generated by means of compressed air in the space delimited by the support rollers and the winding rollers. The overpressure reduces the layer weight and thus the line load (= layer weight per width of a winding roll) on the two contact lines of the winding rolls on the support rollers, from which the winding hardness of a winding roll is decisively influenced. Due to the relief, winding rolls with a very large diameter (more than 800 mm) can be wound with very good winding quality. According to one embodiment, an air box is arranged in the area of the lower gusset between the support rollers and extends over the entire working width (= axial length of the support rollers) and is provided with a compressed air supply. The air box can be swung down from an upper working position, in which its side surfaces lie sealingly against the support rollers, into a position below a support roller. The swiveling down creates space for a separate separating knife, which can be raised from below through the support roller nip, on the tear-off blade of which the web tears off when the full winding rolls are ejected.
Darstellung der ErfindungPresentation of the invention
Der Erfindung liegt die Aufgabe zugrunde, eine gattungsgemäße Tragwalzen-Wickeimaschine so zu verbessern, daß bei platzsparender Bauweise ein Rollenwechsel in kürzerer Zeit durchgeführt werden kann.The invention has for its object to improve a generic support roller winding machine so that a roll change can be carried out in a shorter time with space-saving design.
Dieser Aufgabe wird mit den kennzeichnenden Merkmalen des Patentanspruchs 1 gelöst.This object is achieved with the characterizing features of patent claim 1.
Die Anordnung der Trennmesserstütze mit der Abreißklinge in dem Luftkasten benötigt weniger Platz als ein getrenntes Trennmesser. Darüber hinaus braucht der Luftkasten für einen Rollenwechsel nicht abgesenkt zu werden. Ein Absenken ist nur zum Einführen einer neuen Bahn oder bei einem Papierstau erforderlich. Der Rollenwechsel läßt sich beschleunigt durchführen, da die Abreißklinge des Trennmessers ohne vorheriges Wegschwenken der Luftkastens in ihre Trennposition im Walzenbett hochbewegt werden kann. Die Unteransprüche enthalten bevorzugte, da besonders vorteilhafte Ausgestaltungen der Erfindung.The arrangement of the cutting knife support with the tear-off blade in the air box takes up less space than a separate cutting knife. In addition, the air box does not need to be lowered for a roll change. Lowering is only necessary to insert a new web or in the event of a paper jam. The roll change can be carried out more quickly, since the tear-off blade of the separating knife can be moved up into its separating position in the roller bed without first swiveling the air box away. The subclaims contain preferred, since particularly advantageous, embodiments of the invention.
Kurze Beschreibung der ZeichnungBrief description of the drawing
Die Zeichnung dient zur Erläuterung der Erfindung anhand eines vereinfacht dargestellten Ausführungsbeispiels.The drawing serves to explain the invention with reference to an embodiment shown in simplified form.
Fig. 1 grob schematisch eine Seitenansicht einen Ausschnitt einer Tragwalzen-Wickeimaschine nach der Erfindung.Fig. 1 roughly schematically shows a side view of a section of a support roller winding machine according to the invention.
Fig. 2 in vergrößerter Darstellung einen Querschnitt durch den Luftkasten mit dem Trennmesser in Ruheposition undFig. 2 is an enlarged view of a cross section through the air box with the cutting knife in the rest position and
Fig. 3 einen Querschnitt, bei dem sich die Abreißklinge des Trennmessers in Trennposition befindet.Fig. 3 shows a cross section in which the tear-off blade of the cutting knife is in the cutting position.
Weg zur Ausführung der ErfindungWay of carrying out the invention
Die Tragwalzen-Wickeimaschine weist zwei angetriebene Tragwalzen 1 , 2 auf, zwischen denen ein Walzenbett 3 ausgebildet ist, in dem die Wickelrollen 4 während des Auf wickelns auf den Tragwalzen 1 , 2 aufliegen. Die in Längsrichtung in Einzelbahnen unterteilte Materialbahn 5 - vorzugsweise eine Papier- oder Kartonbahn - wird von der Tragwalze 1 umgelenkt von unten durch den Spalt zwischen den Tragwalzen 1 , 2 in das Tragwalzenbett 3 geführt und dort auf fluchtend aufgereihte Hülsen 6 aufgewickelt. Die fertiggewickelten Wickelrollen 4 werden von einem nicht dargestellten Ausstoßbalken über die Tragwalze 2 auf eine Absenkbühne 7 gedrückt, von der die Wickelrollen 4 zum Entladen abgesenkt werden.The support roller winding machine has two driven support rollers 1, 2, between which a roller bed 3 is formed, in which the winding rollers 4 lie on the support rollers 1, 2 during winding. The material web 5, which is divided into individual webs in the longitudinal direction - preferably a paper or cardboard web - is deflected by the support roller 1 from below through the gap between the support rollers 1, 2 into the support roller bed 3 and wound there on sleeves 6 aligned. The completely wound winding rolls 4 are pressed by an ejection bar, not shown, over the support roller 2 onto a lowering platform 7, from which the winding rolls 4 are lowered for unloading.
Zur Verminderung des Auf lagegewichts der Wickelrollen 4 auf den Tragwalzen 1 , 2 kann in den durch die Tragwalzen 1 , 2 und die Wickelrollen 6 begrenzten Raum mit Druckluft ein Überdruck erzeugt werden. Dazu ist im unteren Zwickel zwischen den beiden Tragwalzen 1 , 2 ein Luftkasten 8 mit einer Druckluftzufuhr 9 angeordnet, der sich über die axiale Länge der Tragwalzen 1 , 2 erstreckt und dessen den Tragwalzen 1 , 2 zugewandte Seitenflächen im oberen Teil den Mantelflächen der Tragwalzen 1 , 2 angepaßt gekrümmt sind, damit sie sich dichtend an diese anlegen können. In die gekrümmten Seitenflächen sind mehrere axial sich erstreckende Filzstreifen außen eingelegt, die bei minimaler Reibung den Luftkasten 8 gegen die Tragwalzen 2 abdichten. Der Luftkasten 8 ist an Schwenkarmen 10 befestigt, die im Gestell der Maschine gelagert sind. Er kann so von seiner oberen Dichtposition bis in eine Ruheposition abgesenkt werden - in Fig. 1 strichpunktiert gezeichnet -, z.B. um eine neue Bahn 5 einzuführen. In der oberen Dichtposition reicht sein oberer Teil bis an die engste Stelle zwischen den beiden Tragwalzen 1 , 2. Die obere, dem Tragwalzenspalt zugewandte Begrenzungsfläche weist einen sich zumindest über die minimale Bahnbreite erstreckenden Luftaustrittsschlitz 1 1 auf und ist an beiden Maschinenseiten als Führungsfläche für zwei an beiden Seiten der Maschine angeordnete stirnseitige Dichtelemente 12 ausgebildet. Die Form der stirnseitigen Dichtelemente 12 ist der freien Querschnittsfläche zwischen den Tragwalzen 1 , 2 angepaßt, wobei ihr oberer Teil rechteckförmig bis oberhalb der Verbindungslinie zwischen den beiden Scheitelpunkten der Tragwalzen 1 , 2 verlängert ist, um bei Wickelrollen 4 mit großem Durchmesser eine ausreichende Dichtfläche zu sichern. Sie sind in axialer Richtung - also quer zur Bahn 5 - verschiebbar an seitlichen Schwenkarmen 13 befestigt, deren Schwenkachse etwas exzentrisch versetzt nach außen auf der Verbindungslinie zwischen den beiden Tragwalzenachsen verläuft. Die Dichtelemente 12 können so aus dem Walzenbett 3 über die Tragwalze 2 in eine Position geschwenkt werden, bei der das Einfahren von seitlichen Führungsköpfen in die Hülsen 6 möglich ist. Die geringe Exzentrizität führt dazu, daß die den Tragwalzen 1 , 2 zugewandten Seitenflächen der Dichtelemente 12 sich beim Ausschwenken etwas von der jeweiligen Tragwalzenoberfläche wegbewegen, z.B. um Papierreste entfernen zu können.To reduce the weight of the winding rollers 4 on the support rollers 1, 2, an excess pressure can be generated in the space delimited by the support rollers 1, 2 and the winding rollers 6 with compressed air. For this purpose, an air box 8 with a compressed air supply is in the lower gusset between the two support rollers 1, 2 9 arranged, which extends over the axial length of the support rollers 1, 2 and the side surfaces facing the support rollers 1, 2 are curved in the upper part adapted to the lateral surfaces of the support rollers 1, 2, so that they can seal against them. In the curved side surfaces, a plurality of axially extending felt strips are inserted on the outside, which seal the air box 8 against the support rollers 2 with minimal friction. The air box 8 is attached to swivel arms 10 which are mounted in the frame of the machine. It can thus be lowered from its upper sealing position to a rest position - shown in broken lines in FIG. 1 - for example in order to introduce a new web 5. In the upper sealing position, its upper part extends to the narrowest point between the two support rollers 1, 2. The upper boundary surface facing the support roller nip has an air outlet slot 1 1 which extends at least over the minimum web width and is on both machine sides as a guide surface for two End-side sealing elements 12 arranged on both sides of the machine are formed. The shape of the end sealing elements 12 is adapted to the free cross-sectional area between the support rollers 1, 2, its upper part being elongated in a rectangular shape up to above the connecting line between the two vertices of the support rollers 1, 2, in order to provide a sufficient sealing surface for winding rollers 4 with a large diameter to back up. They are slidably mounted in the axial direction - that is to say transversely to the path 5 - on lateral pivot arms 13, the pivot axis of which runs somewhat eccentrically offset to the outside on the connecting line between the two carrier roller axes. The sealing elements 12 can thus be pivoted out of the roller bed 3 over the support roller 2 into a position in which the lateral guide heads can be moved into the sleeves 6. The low eccentricity means that the side surfaces of the sealing elements 12 facing the support rollers 1, 2 move somewhat away from the respective support roller surface when swiveling out, for example in order to be able to remove paper residues.
In den Luftkasten 8 ist ein Trennmesser 14 mit einer Abreißklinge 15 angeordnet, die sich in Dichtposition des Luftkastens 8 bis in das Walzenbett 3 hochbewegen und bis in den Luftkasten 8 absenken läßt. In Fig. 2 ist die Abreißklinge 15 abgesenkt, in Fig. 3 befindet sich sich in ihrer Trennposition in dem Walzenbett 3.In the air box 8, a separating knife 14 is arranged with a tear-off blade 15 which, in the sealing position of the air box 8, can be moved up into the roller bed 3 and lowered into the air box 8. The tear-off blade 15 is lowered in FIG. 2, and in FIG. 3 it is in its separation position in the roller bed 3.
ERSATZ Die Abreißklinge 15 erstreckt sich über die gesamte Länge des Zufuhrschlitzes 15, also im wesentlichen über die gesamte Maschinenbreite. Sie ist am Ende eines ebenfalls maschinenbreiten Halters 1 6 in Form eines zweiseitigen Hebels befestigt, der etwa in seiner Mitte um eine zu den Tragwalzenachsen parallele Achse 17 drehbar am Ende einer senkrechten Stütze 18 angelenkt ist. Die Stütze 18 ist am Ende der Kolbenstangen 19 von senkrechten, hydraulischen Kolben-Zylinder-Einheiten befestigt, deren Zylinder 20 am Boden des Luftkastens 8 festgeschraubt sind und sich so an diesem abstützen. Am unteren Teil der Stütze 18 sind die Zylinder 21 von pneumatischen Kolben-Zylinder-Einheiten befestigt, deren Kolbenstangen 22 sich senkrecht nach oben erstrecken. Das Ende der Kolbenstangen 22 ist über Hebel 23 gelenkig mit dem Halter so verbunden, daß die Gelenkpunkte 24 mit dem Halter 1 6 bei vollständig eingefahrenen Kolbenstangen 22 gegenüber den Gelenkpunkten 25 mit den Kolbenstangen 22 etwas in Richtung zur Tragwalze 2 versetzt liegen. Dadurch wird die Abreißklinge 15 beim Ausfahren der Kolbenstangen 22 eindeutig in Richtung zur Trag walze 1 bewegt, wie in Fig. 3 dargestellt ist. Damit der Halter 16 und die Hebel 23 gestreckt werden können, weist die Stütze 18 in ihrem oberen Teil Aussparungen auf, in die diese hineinbewegt werden können. Das der Abreißklinge 15 abgewandte Ende des Hebels 1 6 besteht aus einzelnen, mit Abstand voneinander angeordneten Laschen, wobei am Ende der jeweiligen Laschen abwechselnd einer der Hebel 23 angelenkt ist oder ein frei drehbares Rad 26 gelagert ist. Die Drehachse der frei drehbaren Räder 26 verläuft koaxial zu den Gelenkpunkten 24. Auch für die so in axialer Richtung versetzt zu den Hebeln 23 angeordneten Räder 26 sind Aussparungen in der Stütze 18 vorhanden, in die sie bewegt werden können. Der untere Teil der Stütze 18 mit den Kolben-Zylinder-Einheiten 21 , 22 ist an senkrechten Führungen 27 geführt, die im oberen Teil des Luftkastens 8 angeordnet sind. An der Seite zur Tragwalze 2 sind in axialer Richtung versetzt zu den Führungen 27 weitere senkrechte Führungsschienen für die Räder 26 im oberen Teil des Luftkastens 8 befestigt, von denen die Kippstellung des Halters 16 bestimmt wird, während sich die Räder 26 noch im Luftkasten 8 befinden. Sobald die Räder 26 den Luftkasten 8 nach oben verlassen, werden sie von der Tragwalze 2 geführt und so die Kippbewegung des Halters 16 mit der Abreißklinge 15 festgelegt. Im vorliegenden Ausführungsbeispiel ist das gesamte Trennmesser mit seinem Hebemechanismus in dem Luftkasten 8 angeordnet. Ebenso ist es möglich, den Zylinder 20 der Kolben-Zylinder-Einheit 19, 20 außen an der Unterseite des Luftkastens 8 zu befestigen und die Kolbenstange 19 abgedichtet durch den Boden des Luftkastens 8 zu führen. Dies hat den Vorteil, daß die Versorgungsleitungen für die Kolben-Zylinder-Einheiten 19, 20 außerhalb des Luftkastens 8 angeordnet werden können. Falls es für die Stabilität des Luftkastens 8 erforderlich ist, senkrechte Querschotten in ihm anzuordnen, kann das Trennmesser 14 in einzelne (z.B. vier bei 8 m Arbeitsbreite) Segmente unterteilt werden, die in axialer Richtung aufeinanderfolgend angeordnet sind. Jedes dieser Segmente besteht dann aus den sich über die Segmentbreite durchgehend erstreckenden Teilen (Abreißklinge 15, Halter 1 6, Stütze 18), die von jeweils 2 seitlichen Kolben-Zylinder-Einheiten 19, 20 auf- und abbewegt werden und bei denen die Kippbewegung der Abreißklinge 15 durch 2 seitliche, am unteren Teil der Stütze 8 befestigten Kolben-Zylinder-Einheiten 21 , 22 bewirkt wird.REPLACEMENT The tear-off blade 15 extends over the entire length of the feed slot 15, that is to say essentially over the entire machine width. It is attached to the end of a likewise machine-wide holder 1 6 in the form of a two-sided lever, which is articulated approximately in the middle at the end of a vertical support 18 about an axis 17 parallel to the support roller axes. The support 18 is attached to the end of the piston rods 19 by vertical, hydraulic piston-cylinder units, the cylinders 20 of which are screwed onto the bottom of the air box 8 and are thus supported on the latter. At the lower part of the support 18, the cylinders 21 are fastened by pneumatic piston-cylinder units, the piston rods 22 of which extend vertically upwards. The end of the piston rods 22 is connected in an articulated manner to the holder via lever 23 in such a way that the articulation points 24 with the holder 1 6, when the piston rods 22 are completely retracted, are somewhat offset relative to the articulation points 25 with the piston rods 22 in the direction of the supporting roller 2. As a result, the tear-off blade 15 is clearly moved in the direction of the support roller 1 when the piston rods 22 are extended, as shown in FIG. 3. So that the holder 16 and the levers 23 can be stretched, the support 18 has cutouts in its upper part, into which these can be moved. The end of the lever 1 6 facing away from the tear-off blade 15 consists of individual, spaced-apart tabs, one of the levers 23 being articulated alternately at the end of the respective tabs, or a freely rotatable wheel 26 being mounted. The axis of rotation of the freely rotatable wheels 26 extends coaxially to the articulation points 24. There are also recesses in the support 18 for the wheels 26 thus offset in the axial direction from the levers 23, into which they can be moved. The lower part of the support 18 with the piston-cylinder units 21, 22 is guided on vertical guides 27 which are arranged in the upper part of the air box 8. On the side to the support roller 2 are offset in the axial direction to the guides 27 more vertical guide rails for the wheels 26 in the upper part of the air box 8, of which the tilt position of the holder 16 is determined while the wheels 26 are still in the air box 8 . As soon as the wheels 26 leave the air box 8 upwards, they are guided by the support roller 2 and the tilting movement of the holder 16 is fixed with the tear-off blade 15. In the present exemplary embodiment, the entire cutting knife with its lifting mechanism is arranged in the air box 8. It is also possible to fasten the cylinder 20 of the piston-cylinder unit 19, 20 on the outside on the underside of the air box 8 and to guide the piston rod 19 in a sealed manner through the bottom of the air box 8. This has the advantage that the supply lines for the piston-cylinder units 19, 20 can be arranged outside the air box 8. If it is necessary for the stability of the air box 8 to arrange vertical transverse bulkheads in it, the separating knife 14 can be divided into individual (for example four at 8 m working width) segments which are successively arranged in the axial direction. Each of these segments then consists of the parts which extend continuously over the segment width (tear-off blade 15, holder 16, support 18), which are moved up and down by two lateral piston-cylinder units 19, 20 and in which the tilting movement of the Tear-off blade 15 is effected by 2 lateral piston-cylinder units 21, 22 attached to the lower part of the support 8.
Sobald beim Aufwickeln das Auflagegewicht der Wickelrollen 4 einen bestimmten Wert überschreitet, werden die stirnseitigen Dichtelemente 12 in das Walzenbett 3 geschwenkt und axial gegen die Stirnseiten der Wickelrollen 4 bewegt. Der Luftkasten 8 ist hochgeschwenkt, so daß der untere Zwickel zwischen den Tragwalzen 1 , 2 abgedichtet ist und die Dichtelemente 12 auf seine obere Begrenzungsfläche aufsetzen können. Dabei dichten sie den Luftaustrittsschlitz 1 1 außerhalb des Wickelrollenbereichs ab. Durch Einleiten von Druckluft in den Luftkasten 8 wird unter den Wickelrollen 4 ein Überdruck erzeugt, der das Auflagegewicht auf das gewünschte Maß vermindert. Die Druckluft tritt aus dem Luftaustrittsschlitz 1 1 aus, während alle Teile des Trennmessers 14 einschließlich der Abreißklinge 15 in den Luftkasten 8 versenkt sind. Diese Position ist in Fig. 2 dargestellt.As soon as the support weight of the winding rolls 4 exceeds a certain value during winding, the end sealing elements 12 are pivoted into the roll bed 3 and moved axially against the end faces of the winding rolls 4. The air box 8 is pivoted up so that the lower gusset between the support rollers 1, 2 is sealed and the sealing elements 12 can be placed on its upper boundary surface. They seal the air outlet slot 1 1 outside the winding roll area. By introducing compressed air into the air box 8, an excess pressure is generated under the winding rollers 4, which reduces the weight of the support to the desired level. The compressed air emerges from the air outlet slot 11, while all parts of the separating knife 14, including the tear-off blade 15, are sunk into the air box 8. This position is shown in Fig. 2.
Nach Beendigung der Wicklung wird die Druckluftzufuhr abgeschaltet, die stirnseitigen Dichtelemente 1 2 werden aus dem Walzenbett 3 geschwenkt und die Abreißklinge 15 des Trennmessers 14 wird in die in Fig. 3 dargestellte Trennposition bewegt. Dazu wird zunächst Druckluft in die Zylinder 21 eingeleitet und so die Kolben 22 vorgespannt. Eine Kippbewegung des Halters 1 6 ist noch nicht möglich, da eine seitliche Bewegung der Räder 26 in Richtung zur Tragwalze 2 durch die Führungsschienen verhindert wird. Anschließend bewegen die Kolben-Zylinder-Einheiten 19, 20 die Abreißkiinge 15 nach oben. Sobald die Räder 26 den Luftkasten 8 oben verlassen haben, werden sie von der Tragwalze 2 geführt. So erfolgt beim Hochbewegen der Abreißklinge 15 zugleich eine Kippbewegung in Richtung zur Tragwalze 1 , ohne daß die Kolben-Zylinder-Einheiten 21 , 22 gesteuert werden müssen. Die Höhe der Stütze 18, die Breite des Halters 16 und der Hub der Kolben 22 ist so gewählt, daß sich die Abreißklinge 15 beim Hochfahren der Kolbenstangen 19 exakt in ihre Trennposition im Walzenbett 3 mit geringem Abstand von der umschlungenen Tragwalze 1 bewegt. Anschließend werden die vollen Wickelrollen 4 über die nichtumschlungene Tragwalze 2 ausgestoßen, dabei reißt die Bahn 5 an der Abreißklinge 15 ab. Der so geschaffene neue Bahnanfang wird an der Tragwalze 1 gehalten, z.B. an dieser mit Unterdruck angesaugt. Anschließend wird die Abreißkiinge 15 wieder in den Luftkasten 8 versenkt. Dazu wird zunächst die Abreißklinge 15 mit den Kolben-Zylinder-Einheiten 21 , 22 in etwa senkrecht gestellt, anschließend bewegen die Kolben-Zylinder-Einheiten 19, 20 die Stütze 18 mit allen daran befestigten Teilen nach unten, bis sich die Abreißklinge 15 im Luftkasten 8 befindet. Nachdem ein Satz neuer Wickelhülsen 6 in das Walzenbett 3 eingelegt wurde und die neugeschaffenen Bahnanfänge an diesen befestigt wurden, werden die Tragwalzen 1 , 2 wieder in Drehung versetzt und so das Aufwickeln erneut gestartet. After completion of the winding, the compressed air supply is switched off, the end sealing elements 1 2 are pivoted out of the roller bed 3 and the tear-off blade 15 of the cutting knife 14 is moved into the cutting position shown in FIG. 3. For this purpose, compressed air is first introduced into the cylinders 21 initiated and so the piston 22 biased. A tilting movement of the holder 1 6 is not yet possible, since a lateral movement of the wheels 26 in the direction of the support roller 2 is prevented by the guide rails. Then the piston-cylinder units 19, 20 move the tear-off blades 15 upward. As soon as the wheels 26 have left the air box 8 at the top, they are guided by the support roller 2. Thus, when the tear-off blade 15 is moved upward, a tilting movement takes place in the direction of the supporting roller 1 without the piston-cylinder units 21, 22 having to be controlled. The height of the support 18, the width of the holder 16 and the stroke of the pistons 22 are selected so that the tear-off blade 15 moves exactly into its separation position in the roller bed 3 with a short distance from the wrapped support roller 1 when the piston rods 19 are raised. The full winding rolls 4 are then ejected via the non-looped support roller 2, the web 5 tearing off on the tear-off blade 15. The new web start created in this way is held on the support roller 1, for example sucked onto it with a vacuum. The tear-off blade 15 is then sunk again into the air box 8. For this purpose, first the tear-off blade 15 with the piston-cylinder units 21, 22 is placed approximately vertically, then the piston-cylinder units 19, 20 move the support 18 with all the parts attached to it until the tear-off blade 15 is in the air box 8 is located. After a set of new winding sleeves 6 has been inserted into the roller bed 3 and the newly created start of the web has been attached to it, the support rollers 1, 2 are rotated again and the winding is started again.

Claims

PATENTANSPRÜCHE PATENT CLAIMS
1.1.
Tragwalzen-Wickeimaschine zum Aufwickein einer Materialbahn (5), insbesondere einer Papier- oder Kartonbahn, auf Hülsen (6)Carrier roller winding machine for winding a material web (5), in particular a paper or cardboard web, on sleeves (6)
- mit zwei Tragwalzen (1, 2), auf denen die Wickelrollen (4) beim Aufwickeln aufliegen, wobei die Materialbahn (5) eine Tragwalze (1) teilweise umschlingend von unten durch den Spalt zwischen den Tragwalzen (1, 2) geführt wird- With two support rollers (1, 2), on which the winding rollers (4) rest during winding, the material web (5) a support roller (1) is partially looped from below through the gap between the support rollers (1, 2)
- mit einem Trennmesser (14) zum Durchtrennen der Bahn (5) bei einem Wickelrollenwechsel, das eine Abreißklinge (15) aufweist, die durch den Tragwalzenspalt bis in das Walzenbett (3) hochbewegbar ist, und- With a separating knife (14) for severing the web (5) when changing the winding reel, which has a tear-off blade (15) which can be moved up through the support roller gap into the roller bed (3), and
- mit einem sich über die Arbeitsbreite erstreckenden Luftkasten (8) mit einer Druckluftzufuhr (9), der im unteren Zwickel zwischen den beiden Tragwalzen (1, 2) angeordnet den Spalt zwischen den Trag walzen (1,2) abdichtet und einen zu diesem offenen, sich über die Arbeitsbreite erstreckenden Luftaustrittsschlitz (11) aufweist, dadurch gekennzeichnet, daß die Abreißklinge (15) des Trennmessers (14) an einer im Luftkasten (8) angeordneten, hoch- und niederbewegbaren Stütze (18) befestigt und durch den Luftaustrittsschlitz (11) bis in ihre Trennposition im Walzenbett (3) hochbewegbar und vollständig im Luftkasten (8) versenkbar ist.- With an extending over the working width air box (8) with a compressed air supply (9) arranged in the lower gusset between the two support rollers (1, 2) seals the gap between the support rollers (1,2) and one open to this , has an air outlet slot (11) extending over the working width, characterized in that the tear-off blade (15) of the separating knife (14) is fastened to a support (18) which can be moved up and down in the air box (8) and through the air outlet slot (11 ) can be moved up to its separation position in the roller bed (3) and can be completely lowered into the air box (8).
2.Second
Tragwalzen-Wickeimaschine nach Anspruch 1, dadurch gekenn¬ zeichnet, daß die Abreißklinge (15) an einem Halter (16) befestigt ist, der gegen die umschlungene Tragwalze (1) schwenkbar an der Stütze (18) gelagert ist. 965Carrier roller winding machine according to claim 1, characterized gekenn¬ characterized in that the tear-off blade (15) is attached to a holder (16) which is pivotally mounted on the support roller (1) against the looped support roller (1). 965
- 9 -- 9 -
3.3rd
Tragwalzen-Wickeimaschine nach Anspruch 2, dadurch gekenn¬ zeichnet, daß der Halter (16) der Abreißklinge (15) als zweiseitiger Hebel ausgebildet ist, dessen der Abreißklinge (15) abgewandten Seite mit einer am unteren Teil der Stütze (18) befestigten Kolben-Zylinder-Einheit (21, 22) verbunden ist.Carrier roller winding machine according to claim 2, characterized gekenn¬ characterized in that the holder (16) of the tear-off blade (15) is designed as a two-sided lever, the side facing away from the tear-off blade (15) with a piston attached to the lower part of the support (18) Cylinder unit (21, 22) is connected.
4.4th
Tragwalzen-Wickeimaschine nach Anspruch 3, dadurch gekenn¬ zeichnet, daß die Kolben-Zylinder-Einheit (21 , 22) an einem Hebel (23) angelenkt ist, der an dem Halter (16) gelenkig befestigt ist, wobei dessen Gelenkpunkt (24) am Halter (16) bei eingefahrener Kolbenstange (22) etwas in Richtung zur nichtumschlungenen Tragwalze (2) versetzt ist.Carrier roller winding machine according to claim 3, characterized gekenn¬ characterized in that the piston-cylinder unit (21, 22) is articulated on a lever (23) which is articulated to the holder (16), the hinge point (24) on the holder (16) when the piston rod (22) is retracted is slightly offset in the direction of the non-wrapped support roller (2).
5.5th
Vorrichtung nach einem der Ansprüche 2 bis 4, dadurch gekenn¬ zeichnet, daß an dem der Abreißkiinge (15) abgewandten Ende des Halters (16) frei drehbare Räder (26) befestigt sind.Device according to one of claims 2 to 4, characterized gekenn¬ characterized in that freely rotatable wheels (26) are attached to the end of the holder (16) facing away from the tear-off blades (15).
6.6th
Tragwalzen-Wickeimaschine nach Anspruch 5, dadurch gekenn¬ zeichnet, daß im oberen Teil des Luftkastens (8) senkrechte Führungen für die Räder (26) angeordnet sind.Carrier roller winding machine according to Claim 5, characterized in that vertical guides for the wheels (26) are arranged in the upper part of the air box (8).
7.7.
Tragwalzen-Wickeimaschine nach einer der Ansprüche 1 bis 6, adurch gekennzeichnet, daß an dem Luftkasten (8) eine Kolben-Zylinder-Einheit (19, 20) zum Auf- und Abbewegen der Stütze (18) befestigt ist, wobei zumindest deren Kolbenstange (19) sich innerhalb des Luftkastens (8) befindet. Carrier roller winding machine according to one of Claims 1 to 6, characterized in that a piston-cylinder unit (19, 20) for moving the support (18) up and down is attached to the air box (8), at least the piston rod ( 19) is inside the air box (8).
EP93911771A 1992-06-15 1993-04-21 Support-roller-type winding machine Expired - Lifetime EP0602199B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4219541 1992-06-15
DE4219541A DE4219541A1 (en) 1992-06-15 1992-06-15 Carrier roll winding machine
PCT/EP1993/000965 WO1993025461A1 (en) 1992-06-15 1993-04-21 Support-roller-type winding machine

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EP0602199A1 true EP0602199A1 (en) 1994-06-22
EP0602199B1 EP0602199B1 (en) 1996-11-27

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EP (1) EP0602199B1 (en)
JP (1) JP3409071B2 (en)
AT (1) ATE145626T1 (en)
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BR (1) BR9305545A (en)
CA (1) CA2115655C (en)
DE (3) DE9212571U1 (en)
ES (1) ES2098746T3 (en)
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CA2115655A1 (en) 1993-12-23
JP3409071B2 (en) 2003-05-19
DE9212571U1 (en) 1992-11-12
JPH06509785A (en) 1994-11-02
DE4219541A1 (en) 1993-12-16
FI940673A0 (en) 1994-02-14
WO1993025461A1 (en) 1993-12-23
FI113530B (en) 2004-05-14
FI940673A (en) 1994-02-14
ATE145626T1 (en) 1996-12-15
CA2115655C (en) 2003-12-09
EP0602199B1 (en) 1996-11-27
AU4261493A (en) 1994-01-04
ES2098746T3 (en) 1997-05-01
DE59304610D1 (en) 1997-01-09
BR9305545A (en) 1995-03-01
US5478026A (en) 1995-12-26

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