EP0506896B1 - King roll reeler - Google Patents

King roll reeler Download PDF

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Publication number
EP0506896B1
EP0506896B1 EP91915735A EP91915735A EP0506896B1 EP 0506896 B1 EP0506896 B1 EP 0506896B1 EP 91915735 A EP91915735 A EP 91915735A EP 91915735 A EP91915735 A EP 91915735A EP 0506896 B1 EP0506896 B1 EP 0506896B1
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EP
European Patent Office
Prior art keywords
web
rollers
carrier roller
support
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.)
Expired - Lifetime
Application number
EP91915735A
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German (de)
French (fr)
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EP0506896A1 (en
Inventor
Hartmut Dropczynski
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Jagenberg AG
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Jagenberg AG
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Publication date
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Publication of EP0506896A1 publication Critical patent/EP0506896A1/en
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    • 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
    • B65H19/2238—The web roll being driven by a winding mechanism of the nip or tangential drive type
    • B65H19/2246—The web roll being driven by a winding mechanism of the nip or tangential drive type and the roll being supported on two 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
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/41—Winding, unwinding
    • B65H2301/414—Winding
    • B65H2301/4148—Winding slitting
    • B65H2301/4149—Winding slitting features concerning supply of cores
    • B65H2301/41493—Winding slitting features concerning supply of cores integrated core cutter
    • 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

Definitions

  • the invention relates to a carrier roller winding machine for winding material webs, in particular paper or cardboard webs, on cores according to the preamble of claim 1.
  • German patent application 40 03 504 describes a generic carrier roller winding machine in which rollers are spring-mounted and freely rotatable on a support which can be moved up into the area of the roller bed through the gap between the carrier rollers and which clamp the new web start on the wrapped carrier roller.
  • the web is cut either by means of a cutting knife attached to the upper end of the support above the rollers Ejecting the full winding reel acts as a tear-off edge for the web, or by means of a perforating device arranged in front of the first support roller, which weakens the web so that it tears against a braking force when the full winding reel is rotated.
  • a generic support roller winding machine which contains a device for holding the web with a support which can be raised and lowered below the support roller nip. Holding shoes are attached to the support and can be put on the wrapped support roller to hold the web.
  • the position of the dividing line in the roller bed must be selected so that the newly inserted sleeves clamp the new web start for each sleeve diameter used before winding. Regardless of the tube diameter, the dividing line is positioned so high up in the roller bed that tubes with the largest diameter still securely clamp the web end. When using sleeves with a small diameter, a longer, overhanging web piece must therefore be wound, which can undesirably form a fold around the sleeve.
  • Another difficulty is gluing the new start of the web to the sleeves. If the sleeves are provided with a trace of adhesive, they have to be positioned with great technical effort when inserting them so that the trace of adhesive only comes into contact with the new start of the web during winding, but does not contaminate the support rollers uncovered by the web (DE-OS 35 27 377). In order to avoid these problems, the adhesive is applied to the web according to the German patent application 40 03 504 mentioned at the beginning. When using sleeves with different diameters, it is then necessary to adjust the position of the web start provided with adhesive strips to the respective sleeve diameter before inserting new sleeves.
  • the invention has for its object a generic To improve the roller winding machine so that when changing the reel, the newly created start of the web can be glued as quickly and safely as possible, even with cores with different diameters.
  • the dividing line can be set at a point in the roller bed below the contact line of sleeves with the smallest diameter on the wrapped support roller regardless of the sleeve diameter.
  • the beginning of the contact line provided with adhesive, is fed securely and under tension.
  • the belts are laid flat against the web in the wrap area of the support roller in order to keep the web beginnings not yet clamped by the sleeve on the support roller.
  • the start of the web is then transported under tension and without creases to the contact line and glued to the sleeves.
  • a plurality of belts arranged at a distance from one another over the working width according to claim 2 enable the application of adhesive strips in the running direction of the web in the spaces between the belts. This prevents the adhesive strips from coming into contact with the straps.
  • the belt tension can be adapted to the respective type of material
  • the separating knife attached above the upper guide rollers according to claim 4 enables a cutting of light types of material when ejecting the full winding rolls.
  • the tape dispenser according to claim 5 can Apply adhesive strips to both the new beginning of the web and the end of the web, while the separating line is positioned in the roller bed when the machine runs out.
  • the adhesive can be applied in one step, i.e. with strips of adhesive extending in the running direction over the dividing line, or in two steps, adhesive strips for attaching the end of the web to the finished winding roll and then adhesive strips for attaching the beginning of the web to the sleeves.
  • the perforating device enables the weakening of the web with heavy types of material.
  • the weakened point is then moved into the roller bed and the web is torn there by increasing the web tension.
  • Fig. 1 shows a side view of a section of a support roller winding machine according to the invention during winding.
  • Fig. 2 shows the support roller winding machine during a roll change.
  • FIG. 3 shows an enlarged detail from FIG. 2.
  • the carrier roller winding machine has two driven carrier rollers 1, 2, between which a roller bed 3 is formed, in which the winding rollers 4 rest on the carrier rollers 1, 2 during winding.
  • an ejection bar 26 which can be pivoted via the support roller 1, is attached to lateral pivot levers 6, the pivot axis of which extends coaxially to the support roller 1.
  • the sleeve channel 7 is fastened at the end of lateral pivot levers 10 with a pivot axis running coaxially to the support roller 2.
  • An equally machine-wide, flat support 12 is fastened approximately vertically to a height-adjustable machine-wide traverse 11.
  • the support 12 has a plurality of tab-shaped extensions 13, spaced apart from one another, over the entire working width, at the end of which a deflection roller 14 can be lifted out in a trough.
  • the thickness of at least the upper part of the support 12 and the extensions 13, and the diameter of the deflecting rollers 14 are less than the distance between the support rollers 1, 2, so that it is possible to move the deflecting rollers 14 from a lowered rest position (FIG. 1) to move up through the gap between the support rollers 1, 2 to a working position above the narrowest point of the support roller gap (FIGS. 2, 3).
  • projections 15 are fastened to the looped support roller 1 across the working width at regular intervals with a pin, on each of which a deflection roller 16 with the associated upper roller 14 is flush and freely rotatably supported.
  • the deflection rollers 16 have one significantly larger diameter than the upper pulleys 14.
  • a circumferential elastic belt 17 is tensioned in each case.
  • the projections 15 are slidably attached to the support 12 with the lower deflection rollers 16.
  • the diameter of the lower deflection rollers 16 and their distance from the support 12 is selected so that in the raised working position the adjacent strand 17.1 of each belt 17 bears against the web 5 lying on the support roller 1 in as large an area as possible and the removed strand 17.2 does not abuts the web 5.
  • the belts 17, which are spaced apart from one another over the entire working width, are thus able to hold a web start on the support roller 1 and to guide it upwards during transport.
  • Each belt 17 can be changed quickly if necessary by lifting the upper roller 14 and pulling it laterally off the lower roller 16.
  • a passive cutting knife 18 extending over the working width, z. B. a serrated tear-off blade, which cuts the web 5 when ejecting a full winding roll 4 via the support roller 2.
  • a perforating device 19 is arranged on the inlet side in front of the support roller 1. It contains a toothed perforating blade 20 which can be moved into the web 5 in order to make heavier types of paper, e.g. B. cardboard to weaken along a line of weakness.
  • the web 5 is then - as will be described in more detail later - torn by increasing the web tension along the weakening line as soon as the weakening line is at the desired position in the roll bed 3.
  • the increase in web tension takes place by rotating the full winding roll 4 by means of a support roller 1, 2 against a braking force which, for. B. from the unrolling, not shown is applied.
  • the adhesive strips 23 have a smaller width than the gap between two belts 17, and in each case one adhesive tape dispenser 21 is aligned with one of these gaps, so that the adhesive strips applied to the web 5 do not come into contact with the belts 17 when they occur the web 5 can be adhesively moved into the roller bed 3.
  • a swivel arm 24 which can be pivoted against the support roller 1 is arranged below the support roller 1 in the web running direction in front of the belt 17.
  • the rear deflection rollers of the rocker arm 24 are mounted coaxially to the lower deflection rollers 16 for the belt 17 on the support 12.
  • the pivoting to the support roller 1 takes place by means of a piston-cylinder unit 25 which is articulated on an extension of the cross member 11 extending downwards.
  • the traverse 11 with the belts 17 and the swing arm 24 is lowered into a non-disturbing rest position (FIG. 1).
  • the carrier roll winding machine is stopped so that the web 5 comes to a standstill under web tension.
  • heavier types of paper e.g. B. cardboard that can not be easily cut with the passive separating knife 18 when ejecting the full winding rolls 4
  • the stationary web 5 is weakened with the perforating device 19 depending on the type of material so much that it can be torn later by increasing the web tension .
  • the weakening line is then by restarting the support roller winding machine at a lower speed into the roller bed 3 to below the contact line of the sleeves 8 with the smallest diameter on the support roller 1 moves. During this movement, the pressure roller 22 of the adhesive tape dispenser 21 is pressed against the web 5, so that double-sided adhesive strips are applied to the web 5 over the working width on both sides of the weakening line.
  • the machine is stopped again and the support 12 with the belts 17 is raised.
  • the strands 17.1 of the belts 17 lie under tension in the spaces between the adhesive strips on the web 5 and thus hold the new web start to be created on the support roller 1.
  • the z. B. is applied by a brake in the unwinding of the supply roll, the tensile stress increased so far that the web 5 tears at the weakened line.
  • the support roller 1 rotates under the web 5 - the web end with the adhesive strips is moved through the contact line between the full winding rollers 4 and the support roller 1, so that the web end sticks to the full winding rollers 4.
  • the support 12 with the belt 17 can already be raised when the perforation is at a standstill in order to place the belt 17 on the web 5 wrapped by the support roller 1.
  • the web 5 is cut by increasing the web tension. This can be done with the machine running slowly, i.e. without standstill. An additional stopping of the machine in order to apply the belts 17 to the web 5 is not necessary.
  • a further shortening of the roll change times is achieved if, instead of the ejection bar 26, a freely rotatable ejection roller is used, with which the full winding rollers 4 are lifted slightly from the support roller 1 before the web 5 is severed.
  • the increase in the tensile stress for severing then takes place by an accelerated rotation of the support roller 2 without the support roller 1 having to rotate under the restrained beginning of the web.
  • the end of the web is glued to the full winding rolls 4 when the adhesive strips pass through the contact line between the winding rolls 4 and the ejection roll.

Abstract

PCT No. PCT/EP91/01638 Sec. 371 Date Mar. 24, 1992 Sec. 102(e) Date Mar. 24, 1992 PCT Filed Aug. 29, 1991 PCT Pub. No. WO92/05099 PCT Pub. Date Apr. 2, 1992.A winding machine includes a pair of support rollers spaced from one another an forming a cradle receiving a core to be wound, and a holding mechanism provided with respective upper and lower guide rollers and at least one elastic endless belt engaging the guide rollers and pressing the web against a periph- ery of one of the support rollers in a working position of the holding mechanism.

Description

Die Erfindung betrifft eine Tragwalzen-Wickelmaschine zum Aufwickeln von Materialbahnen, insbesondere Papier- oder Kartonbahnen, auf Hülsen gemäß dem Oberbegriff des Patentanspruchs 1.The invention relates to a carrier roller winding machine for winding material webs, in particular paper or cardboard webs, on cores according to the preamble of claim 1.

Stand der TechnikState of the art

Um bei derartigen Wickelmaschinen die durch einen Rollenwechsel bedingten Maschinenstillstandszeiten möglichst gering zu halten, ist es aus der DE-OS 29 20 707 bekannt, die Materialbahn im Walzenbett mittels einer durch den Tragwalzenspalt hochfahrbaren Trenneinrichtung mit einer Abreißklinge beim Ausstoßen der vollen Wickelrollen durchzutrennen. Der beim Durchtrennen neu geschaffene Bahnanfang wird dabei durch Unterdruck auf der umschlungenen Tragwalze festgehalten, bis ein Satz neuer Hülsen eingelegt ist.In order to keep the machine downtimes caused by a roll change as short as possible in such winding machines, it is known from DE-OS 29 20 707 to sever the material web in the roll bed by means of a separating device which can be raised by the support roll nip with a tear-off blade when the full winding rolls are ejected. The newly created start of the web is held in place by negative pressure on the wrapped roller until a set of new sleeves is inserted.

In der deutschen Patentanmeldung 40 03 504 ist eine gattungsgemäße Tragwalzen-Wickelmaschine beschrieben, bei der an einer durch den Spalt zwischen den Tragwalzen in den Bereich des Walzenbetts hochbewegbaren Stütze Rollen federnd und frei drehbar gelagert sind, die den neuen Bahnanfang an der umschlungenen Tragwalze festklemmen. Das Durchtrennen der Bahn erfolgt entweder mittels eines am oberen Ende der Stütze oberhalb der Rollen befestigten Trennmessers, das beim Ausstoßen der vollen Wickelrollen als Abreißkante für die Bahn wirkt, oder mittels einer vor der ersten Tragwalze angeordneten Perforiervorrichtung, die die Bahn schwächt, so daß sie beim Drehen der vollen Wickelrolle gegen eine Bremskraft durchreißt.German patent application 40 03 504 describes a generic carrier roller winding machine in which rollers are spring-mounted and freely rotatable on a support which can be moved up into the area of the roller bed through the gap between the carrier rollers and which clamp the new web start on the wrapped carrier roller. The web is cut either by means of a cutting knife attached to the upper end of the support above the rollers Ejecting the full winding reel acts as a tear-off edge for the web, or by means of a perforating device arranged in front of the first support roller, which weakens the web so that it tears against a braking force when the full winding reel is rotated.

Aus der US-A 3,961,759 ist eine gattungsgemäße Tragwalzen-Wickelmaschine bekannt, die eine Einrichtung zum Halten der Bahn mit einer unterhalb des Tragwalzenspalts heb- und senkbar angeordneten Stütze enthält. An der Stütze sind Halteschuhe befestigt, die zum Halten der Bahn an die umschlungene Tragwalze anlegbar sind.From US-A 3,961,759 a generic support roller winding machine is known which contains a device for holding the web with a support which can be raised and lowered below the support roller nip. Holding shoes are attached to the support and can be put on the wrapped support roller to hold the web.

Bei diesen Systemen muß die Lage der Trennlinie im Walzenbett so gewählt sein, daß die neu eingelegten Hülsen bei jedem verwendeten Hülsendurchmesser den neuen Bahnanfang vor dem Anwickeln einklemmen. Die Trennlinie wird unabhängig vom Hülsendurchmesser so weit oben im Walzenbett positioniert, daß Hülsen mit dem größten Durchmesser das Bahnende noch sicher einklemmen. Beim Einsatz von Hülsen mit kleinem Durchmesser muß somit ein längeres, überhängendes Bahnstück angewickelt werden, das sich unerwünschterweise als Falte um die Hülse legen kann.In these systems, the position of the dividing line in the roller bed must be selected so that the newly inserted sleeves clamp the new web start for each sleeve diameter used before winding. Regardless of the tube diameter, the dividing line is positioned so high up in the roller bed that tubes with the largest diameter still securely clamp the web end. When using sleeves with a small diameter, a longer, overhanging web piece must therefore be wound, which can undesirably form a fold around the sleeve.

Eine weitere Schwierigkeit bildet das Ankleben des neuen Bahnanfangs an den Hülsen. Versieht man die Hülsen mit einer Klebemittelspur, so müssen diese beim Einlegen mit hohem technischen Aufwand so positioniert werden, daß die Klebemittelspur beim Anwickeln nur mit dem neuen Bahnanfang in Kontakt tritt, nicht aber die von der Bahn unbedeckten Tragwalzen verschmutzt (DE-OS 35 27 377). Um diese Probleme zu vermeiden, wird nach der eingangs erwähnten deutschen Patentanmeldung 40 03 504 das Klebemittel auf die Bahn aufgebracht. Bei Verwendung von Hülsen mit unterschiedlichem Durchmesser ist es dann erforderlich, vor dem Einlegen neuer Hülsen die Position des mit Klebstreifen versehenen Bahnanfangs dem jeweiligen Hülsendurchmesser anzupassen.Another difficulty is gluing the new start of the web to the sleeves. If the sleeves are provided with a trace of adhesive, they have to be positioned with great technical effort when inserting them so that the trace of adhesive only comes into contact with the new start of the web during winding, but does not contaminate the support rollers uncovered by the web (DE-OS 35 27 377). In order to avoid these problems, the adhesive is applied to the web according to the German patent application 40 03 504 mentioned at the beginning. When using sleeves with different diameters, it is then necessary to adjust the position of the web start provided with adhesive strips to the respective sleeve diameter before inserting new sleeves.

Darstellung der ErfindungPresentation of the invention

Der Erfindung liegt die Aufgabe zugrunde, eine gattungsgemäße Tragwalzen-Wickelmaschine so zu verbessern, daß bei einem Rollenwechsel der neu geschaffene Bahnanfang auch bei Hülsen mit unterschiedlichem Durchmesser möglichst schnell und sicher angeklebt werden kann.The invention has for its object a generic To improve the roller winding machine so that when changing the reel, the newly created start of the web can be glued as quickly and safely as possible, even with cores with different diameters.

Diese Aufgabe wird mit den Merkmalen des Patentanspruchs 1 gelöst.This object is achieved with the features of patent claim 1.

Nach der Erfindung läßt sich die Trennlinie unabhängig vom Hülsendurchmesser an einer Stelle im Walzenbett unterhalb der Kontaktlinie von Hülsen mit kleinstem Durchmesser an der umschlungenen Tragwalze festlegen. Bei Wickelbeginn wird der mit Klebemittel versehene Bahnanfang der Kontaktlinie sicher und unter Spannung zugefuhrt. Dazu werden die Riemen flächig an die Bahn im Umschlingungsbereich der Tragwalze angelegt, um die noch nicht von der Hülse an der Tragwalze festgeklemmten Bahnanfänge zu halten. Durch Drehen der umschlungenen Tragwalze wird der Bahnanfang anschließend unter Spannung und faltenfrei zu der Kontaktlinie transportiert und an den Hülsen festgeklebt.According to the invention, the dividing line can be set at a point in the roller bed below the contact line of sleeves with the smallest diameter on the wrapped support roller regardless of the sleeve diameter. At the start of the winding process, the beginning of the contact line, provided with adhesive, is fed securely and under tension. For this purpose, the belts are laid flat against the web in the wrap area of the support roller in order to keep the web beginnings not yet clamped by the sleeve on the support roller. By turning the wrapped roller, the start of the web is then transported under tension and without creases to the contact line and glued to the sleeves.

Die Unteransprüche enthalten bevorzugte, da besonders vorteilhafte Ausführungsformen der Erfindung:
Mehrere mit Abstand voneinander über die Arbeitsbreite angeordnete Riemen nach Anspruch 2 ermöglichen den Auftrag von Klebemittelstreifen in Laufrichtung der Bahn in den Zwischenräumen zwischen den Riemen. So wird ein Kontakt der Klebemittelstreifen mit den Riemen vermieden.The subclaims contain preferred, since particularly advantageous, embodiments of the invention:
A plurality of belts arranged at a distance from one another over the working width according to claim 2 enable the application of adhesive strips in the running direction of the web in the spaces between the belts. This prevents the adhesive strips from coming into contact with the straps.

Während sich mit dem Merkmal des Anspruchs 3 die Riemenspannung der jeweiligen Materialsorte anpassen läßt, ermöglicht das oberhalb der oberen Umlenkrollen befestigte Trennmesser nach Anspruch 4 ein Durchtrennen von leichten Materialsorten beim Ausstoßen der vollen Wickelrollen.While with the feature of claim 3 the belt tension can be adapted to the respective type of material, the separating knife attached above the upper guide rollers according to claim 4 enables a cutting of light types of material when ejecting the full winding rolls.

Mit den Klebebandspendern nach Anspruch 5 lassen sich Klebemittelstreifen sowohl auf den neu zu schaffenden Bahnanfang als auch auf das Bahnende auftragen, während bei auslaufender Maschine die Trennlinie im Walzenbett positioniert wird. Der Klebemittelauftrag kann dabei einstufig, also mit sich in Laufrichtung über die Trennlinie erstreckenden Klebemittelstreifen, oder in zwei Stufen erfolgen, wobei zunächst Klebestreifen zum Befestigen des Bahnendes an der fertigen Wickelrolle, anschließend Klebestreifen zum Befestigen des Bahnanfangs an den Hülsen aufgetragen werden.With the tape dispenser according to claim 5 can Apply adhesive strips to both the new beginning of the web and the end of the web, while the separating line is positioned in the roller bed when the machine runs out. The adhesive can be applied in one step, i.e. with strips of adhesive extending in the running direction over the dividing line, or in two steps, adhesive strips for attaching the end of the web to the finished winding roll and then adhesive strips for attaching the beginning of the web to the sleeves.

Die Perforiereinrichtung nach Anspruch 6 ermöglicht das Schwächen der Bahn bei schweren Materialsorten. Die geschwächte Stelle wird anschließend in das Walzenbett bewegt und dort die Bahn durch Erhöhung des Bahnzugs durchgerissen.The perforating device according to claim 6 enables the weakening of the web with heavy types of material. The weakened point is then moved into the roller bed and the web is torn there by increasing the web tension.

Kurze Beschreibung der ZeichnungBrief description of the drawing

Die Zeichnung dient zur Erläuterung der Erfindung anhand eines vereinfacht ausgeführten Ausführungsbeispiels.The drawing serves to explain the invention using a simplified embodiment.

Fig. 1 zeigt in Seitenansicht einen Ausschnitt einer erfindungsgemäßen Tragwalzen-Wickelmaschine während des Aufwickelns.Fig. 1 shows a side view of a section of a support roller winding machine according to the invention during winding.

Fig. 2 Zeigt die Tragwalzen-Wickelmaschine bei einem Rollenwechsel.Fig. 2 shows the support roller winding machine during a roll change.

Fig. 3 zeigt einen vergrößerten Ausschnitt von Fig. 2.FIG. 3 shows an enlarged detail from FIG. 2.

Wege zur Ausführung der ErfindungWays of Carrying Out the Invention

Die Tragwalzen-Wickelmaschine weist zwei angetriebene Tragwalzen 1, 2 auf, zwischen denen ein Walzenbett 3 ausgebildet ist, in dem die Wickelrollen 4 während des Aufwickelns auf den Tragwalzen 1, 2 aufliegen. Die in Längsrichtung in Einzelbahnen unterteilte Materialbahn 5 - im Beispiel eine Papier- oder Kartonbahn - wird von der Tragwalze 1 umgelenkt von unten durch den Spalt zwischen den Tragwalzen 1, 2 in das Walzenbett 3 geführt und dort auf fluchtend aufgereihte Hülsen gewickelt. Zum Ausstoßen einer vollen Wickelrolle 4 über die Tragwalze 2 dient ein über die Tragwalze 1 schwenkbarer Ausstoßbalken 26, der an seitlichen Schwenkhebeln 6 befestigt ist, deren Schwenkachse koaxial zur Tragwalze 1 verläuft. Eine über die Tragwalze 2 in Richtung zum Walzenbett 3 schwenkbare Hülsenrinne 7 dient zum Einlegen neuer Hülsen 8, 9 mit unterschiedlich großem Durchmesser. Die Hülsenrinne 7 ist am Ende von seitlichen Schwenkhebeln 10 mit koaxial zur Tragwalze 2 verlaufender Schwenkachse befestigt. Im Bereich unterhalb des Spalts zwischen den Tragwalzen 1, 2 ist eine Vorrichtung zum Halten und Führen des bei einem Wickelrollenwechsel nach dem Durchtrennen der Bahn 5 vorliegenden neuen Bahnanfangs angeordnet, die in Fig. 3 vergrößert dargestellt ist.The carrier roller winding machine has two driven carrier rollers 1, 2, between which a roller bed 3 is formed, in which the winding rollers 4 rest on the carrier rollers 1, 2 during winding. The material web 5 - divided into individual webs in the longitudinal direction Example, 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 roller bed 3 and wound there on aligned sleeves. For ejecting a full winding roll 4 via the support roller 2, an ejection bar 26, which can be pivoted via the support roller 1, is attached to lateral pivot levers 6, the pivot axis of which extends coaxially to the support roller 1. A sleeve channel 7, which can be pivoted over the support roller 2 in the direction of the roller bed 3, is used to insert new sleeves 8, 9 with different diameters. The sleeve channel 7 is fastened at the end of lateral pivot levers 10 with a pivot axis running coaxially to the support roller 2. In the area below the gap between the support rollers 1, 2 there is a device for holding and guiding the new start of the web present when changing the winding reel after severing the web 5, which is shown enlarged in FIG. 3.

An einer höhenverfahrbaren maschinenbreiten Traverse 11 ist eine ebenfalls maschinenbreite, flache Stütze 12 in etwa senkrecht befestigt. An ihrem oberen Ende weist die Stütze 12 über die gesamte Arbeitsbreite mehrere, mit Abstand voneinander angeordnete laschenförmige Verlängerungen 13 auf, an deren Ende jeweils eine Umlenkrolle 14 in einer Mulde heraushebbar, gelagert ist. Die Dicke zumindest des oberen Teils der Stütze 12 und der Verlängerungen 13, sowie der Durchmesser der Umlenkrollen 14 sind geringer als der Abstand zwischen den Tragwalzen 1, 2, so daß es möglich ist, die Umlenkrollen 14 von einer abgesenkten Ruheposition (Fig. 1) durch den Spalt zwischen den Tragwalzen 1, 2 bis in eine Arbeitsposition oberhalb der engsten Stelle des Tragwalzenspalts hochzubewegen (Fig. 2, 3). Am unteren Ende der Stütze 12 sind an der umschlungenen Tragwalze 1 quer über die Arbeitsbreite mit regelmäßigen Abständen Vorsprünge 15 mit einem Zapfen befestigt, auf denen jeweils eine Umlenkrolle 16 mit der zugehörigen oberen Rolle 14 fluchtend und frei drehbar fliegend gelagert ist. Die Umlenkrollen 16 weisen einen erheblich größeren Durchmesser als die oberen Umlenkrollen 14 auf. Bei hochgefahrener Stütze 12, also in Arbeitsposition, reichen sie bis nahe an die Tragwalze 1. Zwischen jeder oberen Rolle 14 und der zugehörigen unteren Rolle 16 ist jeweils ein umlaufender elastischer Riemen 17 gespannt. Zur Einstellung der Riemenspannung sind die Vorsprünge 15 mit den unteren Umlenkrollen 16 an der Stütze 12 verschiebbar befestigt. Der Durchmesser der unteren Umlenkrollen 16 und ihr Abstand von der Stütze 12 ist so gewählt, daß sich in hochgefahrener Arbeitsposition der benachbarte Trum 17.1 jedes Riemens 17 in einem möglichst großen Bereich an die auf der Tragwalze 1 liegende Bahn 5 anlegt und der entfernte Trum 17.2 nicht an der Bahn 5 anliegt. Die über die gesamte Arbeitsbreite mit Abstand voneinander angeordneten Riemen 17 sind so in der Lage, einen Bahnanfang an der Tragwalze 1 zu halten und während des Transports nach oben zu führen. Jeder Riemen 17 läßt sich erforderlichenfalls durch Herausheben der oberen Rolle 14 und seitliches Abziehen von der unteren Rolle 16 schnell wechseln.An equally machine-wide, flat support 12 is fastened approximately vertically to a height-adjustable machine-wide traverse 11. At its upper end, the support 12 has a plurality of tab-shaped extensions 13, spaced apart from one another, over the entire working width, at the end of which a deflection roller 14 can be lifted out in a trough. The thickness of at least the upper part of the support 12 and the extensions 13, and the diameter of the deflecting rollers 14 are less than the distance between the support rollers 1, 2, so that it is possible to move the deflecting rollers 14 from a lowered rest position (FIG. 1) to move up through the gap between the support rollers 1, 2 to a working position above the narrowest point of the support roller gap (FIGS. 2, 3). At the lower end of the support 12, projections 15 are fastened to the looped support roller 1 across the working width at regular intervals with a pin, on each of which a deflection roller 16 with the associated upper roller 14 is flush and freely rotatably supported. The deflection rollers 16 have one significantly larger diameter than the upper pulleys 14. When the support 12 is raised, that is to say in the working position, they extend close to the supporting roller 1. Between each upper roller 14 and the associated lower roller 16, a circumferential elastic belt 17 is tensioned in each case. To adjust the belt tension, the projections 15 are slidably attached to the support 12 with the lower deflection rollers 16. The diameter of the lower deflection rollers 16 and their distance from the support 12 is selected so that in the raised working position the adjacent strand 17.1 of each belt 17 bears against the web 5 lying on the support roller 1 in as large an area as possible and the removed strand 17.2 does not abuts the web 5. The belts 17, which are spaced apart from one another over the entire working width, are thus able to hold a web start on the support roller 1 and to guide it upwards during transport. Each belt 17 can be changed quickly if necessary by lifting the upper roller 14 and pulling it laterally off the lower roller 16.

Bei der in Fig. 3 gezeigten Ausführungsform ist am oberen Ende der Verlängerungen 13 der Stütze 12 ein sich über die Arbeitsbreite erstreckendes passives Trennmesser 18 befestigt, z. B. eine gezahnte Abreißklinge, die beim Ausstoßen einer vollen Wickelrolle 4 über die Tragwalze 2 die Bahn 5 durchtrennt. Alternativ oder zusätzlich ist bei der Ausführungsform nach den Fig. 1 und 2 an der Einlaufseite vor der Tragwalze 1 eine Perforiereinrichtung 19 angeordnet. Sie enthält eine in die Bahn 5 bewegbare gezahnte Perforierklinge 20, um schwerere Papiersorten, z. B. Karton, entlang einer Schwächungslinie zu schwächen. Die Bahn 5 wird dann - wie später näher beschrieben wird - durch Erhöhung des Bahnzugs entlang der Schwächungslinie durchgerissen, sobald sich die Schwächungslinie an der gewünschten Position im Walzenbett 3 befindet. Die Bahnzugserhöhung erfolgt dabei durch Drehen der vollen Wickelrolle 4 mittels einer Tragwalze 1, 2 gegen eine Bremskraft, die z. B. von der nicht dargestellten Abrollung aufgebracht wird. Unterhalb der umschlungenen Tragwalze 1 - bei vorhandener Perforiereinrichtung 19 in Bahnlaufrichtung hinter dieser - sind über die Arbeitsbreite mehrere Klebebandspender 21 angeordnet, die jeweils mittels einer gegen die Tragwalze 1 andrückbaren Andrückrolle 22 doppelseitig klebende Klebestreifen 23 auf die Bahn 5 auftragen. Die Klebestreifen 23 weisen eine geringere Breite als die Lücke zwischen zwei Riemen 17 auf, und jeweils ein Klebebandspender 21 ist fluchtend mit einer dieser Lücken ausgerichtet, so daß die auf die Bahn 5 aufgetragenen Klebestreifen nicht in Kontakt mit den Riemen 17 treten, wenn sie auf der Bahn 5 klebend in das Walzenbett 3 bewegt werden.In the embodiment shown in Fig. 3 is attached to the upper end of the extensions 13 of the support 12 a passive cutting knife 18 extending over the working width, z. B. a serrated tear-off blade, which cuts the web 5 when ejecting a full winding roll 4 via the support roller 2. Alternatively or additionally, in the embodiment according to FIGS. 1 and 2, a perforating device 19 is arranged on the inlet side in front of the support roller 1. It contains a toothed perforating blade 20 which can be moved into the web 5 in order to make heavier types of paper, e.g. B. cardboard to weaken along a line of weakness. The web 5 is then - as will be described in more detail later - torn by increasing the web tension along the weakening line as soon as the weakening line is at the desired position in the roll bed 3. The increase in web tension takes place by rotating the full winding roll 4 by means of a support roller 1, 2 against a braking force which, for. B. from the unrolling, not shown is applied. Below the wrapped support roller 1 - with an existing perforating device 19 in the web running direction behind it - several adhesive tape dispensers 21 are arranged over the working width, each applying double-sided adhesive strips 23 to the web 5 by means of a pressure roller 22 which can be pressed against the support roller 1. The adhesive strips 23 have a smaller width than the gap between two belts 17, and in each case one adhesive tape dispenser 21 is aligned with one of these gaps, so that the adhesive strips applied to the web 5 do not come into contact with the belts 17 when they occur the web 5 can be adhesively moved into the roller bed 3.

Zur Einführung einer neuen Bahn 5 beim Wechsel der Vorratsrolle ist unterhalb der Tragwalze 1 in Bahnlaufrichtung vor den Riemen 17 eine gegen die Tragwalze 1 schwenkbare Bänderschwinge 24 angeordnet. Um den Anfang der Bahn 5 bis zu den Riemen 17 zu führen, sind die hinteren Umlenkrollen der Bänderschwinge 24 koaxial zu den unteren Umlenkrollen 16 für die Riemen 17 an der Stütze 12 gelagert. Das Anschwenken an die Tragwalze 1 erfolgt mittels einer Kolben-Zylinder-Einheit 25, die an einer sich nach unten erstreckenden Verlängerung der Traverse 11 angelenkt ist.To introduce a new web 5 when changing the supply roll, a swivel arm 24 which can be pivoted against the support roller 1 is arranged below the support roller 1 in the web running direction in front of the belt 17. In order to lead the beginning of the path 5 to the belt 17, the rear deflection rollers of the rocker arm 24 are mounted coaxially to the lower deflection rollers 16 for the belt 17 on the support 12. The pivoting to the support roller 1 takes place by means of a piston-cylinder unit 25 which is articulated on an extension of the cross member 11 extending downwards.

Während des Aufwickelns ist die Traverse 11 mit den Riemen 17 und der Bänderschwinge 24 in eine nicht störende Ruheposition abgesenkt (Fig. 1). Wenn die Wickelrollen 4 vollgewickelt sind, wird die Tragwalzen-Wickelmaschine angehalten, so daß die Bahn 5 unter Bahnzug zum Stillstand kommt. Bei schwereren Papiersorten, z. B. Karton, die sich nicht problemlos mit dem passiven Trennmesser 18 beim Ausstoßen der vollen Wickelrollen 4 durchtrennen lassen, wird die stillstehende Bahn 5 mit der Perforiereinrichtung 19 in Abhängigkeit von der Materialsorte so weit geschwächt, daß sie sich später durch Erhöhung des Bahnzugs durchreißen läßt. Die Schwächungslinie wird dann durch erneutes Starten der Tragwalzen-Wickelmaschine bei geringerer Geschwindigkeit in das Walzenbett 3 bis unterhalb der Kontaktlinie der Hülsen 8 mit kleinstem Durchmesser an der Tragwalze 1 bewegt. Während dieser Bewegung wird die Andrückrolle 22 des Klebebandspenders 21 gegen die Bahn 5 gedrückt, so daß über die Arbeitsbreite beidseits der Schwächungslinie doppelseitig klebende Klebestreifen auf die Bahn 5 aufgetragen werden.During winding, the traverse 11 with the belts 17 and the swing arm 24 is lowered into a non-disturbing rest position (FIG. 1). When the winding rolls 4 are fully wound, the carrier roll winding machine is stopped so that the web 5 comes to a standstill under web tension. With heavier types of paper, e.g. B. cardboard that can not be easily cut with the passive separating knife 18 when ejecting the full winding rolls 4, the stationary web 5 is weakened with the perforating device 19 depending on the type of material so much that it can be torn later by increasing the web tension . The weakening line is then by restarting the support roller winding machine at a lower speed into the roller bed 3 to below the contact line of the sleeves 8 with the smallest diameter on the support roller 1 moves. During this movement, the pressure roller 22 of the adhesive tape dispenser 21 is pressed against the web 5, so that double-sided adhesive strips are applied to the web 5 over the working width on both sides of the weakening line.

Wenn die Schwächungslinie die gewünschte Position erreicht hat, wird die Maschine erneut abgestoppt und die Stütze 12 mit den Riemen 17 hochgefahren. Die Trums 17.1 der Riemen 17 legen sich unter Spannung in den Zwischenräumen zwischen den Klebestreifen an die Bahn 5 an und halten so den neu zu schaffenden Bahnanfang an der Tragwalze 1 fest. Anschließend wird durch Drehen der Wickelrollen 4 gegen eine Rückhaltekraft, die z. B. durch eine Bremse in der Abrollung der Vorratsrolle aufgebracht wird, die Zugspannung so weit erhöht, daß die Bahn 5 an der geschwächten Linie durchreißt. Bei festgehaltenem Bahnanfang - die Tragwalze 1 dreht sich dabei unter der Bahn 5 durch - wird das Bahnende mit den Klebestreifen durch die Kontaktlinie zwischen den vollen Wickelrollen 4 und der Tragwalze 1 hindurchbewegt, so daß das Bahnende an den vollen Wickelrollen 4 festklebt. Anschließend werden die vollen Wickelrollen 4 über die Tragwalze 3 mit dem Ausstoßbalken 26 ausgestoßen und neue Hülsen 8 bzw. 9 werden in das Walzenbett eingelegt. Unabhängig vom Durchmesser der Hülsen 8, 9 befindet sich der mit Klebestreifen versehene Bahnanfang noch unterhalb der Kontaktlinie der Hülsen 8, 9 an der Tragwalze 1. Um den Bahnanfang mit den Hülsen 8 bzw. 9 zu verkleben, wird anschließend die Bahn 5 bei gelöster Bremse durch Drehen der Tragwalze 1 nach oben bewegt, bis die Klebestreifen die Kontaktlinie der Hülsen 8 bzw. 9 an der Tragwalze 1 durchlaufen haben. Der Bahnanfang wird dabei von den freilaufenden Riemen 17 sicher und faltenfrei bis an die Kontaktlinie geführt. Wenn der neue Bahnanfang an den Hülsen 8 bzw. 9 festgeklebt ist, wird die Stütze 12 abgesenkt und die Maschine kann auf volle Wickelgeschwindigkeit beschleunigt werden.When the line of weakness has reached the desired position, the machine is stopped again and the support 12 with the belts 17 is raised. The strands 17.1 of the belts 17 lie under tension in the spaces between the adhesive strips on the web 5 and thus hold the new web start to be created on the support roller 1. Subsequently, by rotating the winding rollers 4 against a retaining force, the z. B. is applied by a brake in the unwinding of the supply roll, the tensile stress increased so far that the web 5 tears at the weakened line. When the web start is held - the support roller 1 rotates under the web 5 - the web end with the adhesive strips is moved through the contact line between the full winding rollers 4 and the support roller 1, so that the web end sticks to the full winding rollers 4. Then the full winding rolls 4 are ejected via the support roller 3 with the ejection bar 26 and new sleeves 8 and 9 are inserted into the roller bed. Regardless of the diameter of the sleeves 8, 9, the beginning of the web provided with adhesive strips is still below the contact line of the sleeves 8, 9 on the support roller 1. In order to glue the beginning of the web to the sleeves 8 and 9, the web 5 is then with the brake released by rotating the support roller 1 upwards until the adhesive strips have passed the contact line of the sleeves 8 and 9 on the support roller 1. The beginning of the path is guided safely and wrinkle-free to the contact line by the free-running belt 17. When the new start of the web is glued to the sleeves 8 and 9, the support 12 is lowered and the machine can be accelerated to full winding speed.

Um den Rollenwechsel zu beschleunigen, kann die Stütze 12 mit dem Riemen 17 bereits beim Stillstand während des Perforierens hochgefahren werden, um die Riemen 17 an die von der Tragwalze 1 umschlungene Bahn 5 anzulegen. Wenn die Schwächungslinie die gewünschte Position erreicht hat, wird die Bahn 5 durch Erhöhung des Bahnzugs durchgetrennt. Dies kann bei langsam laufender Maschine, also ohne Stillstand, erfolgen. Ein zusätzliches Anhalten der Maschine, um die Riemen 17 an die Bahn 5 anzulegen, ist nicht erforderlich.In order to accelerate the roll change, the support 12 with the belt 17 can already be raised when the perforation is at a standstill in order to place the belt 17 on the web 5 wrapped by the support roller 1. When the line of weakness has reached the desired position, the web 5 is cut by increasing the web tension. This can be done with the machine running slowly, i.e. without standstill. An additional stopping of the machine in order to apply the belts 17 to the web 5 is not necessary.

Eine weitere Verkürzung der Rollenwechselzeiten wird erreicht, wenn anstelle des Ausstoßbalkens 26 eine frei drehbare Ausstoßrolle eingesetzt wird, mit der die vollen Wickelrollen 4 vor dem Durchtrennen der Bahn 5 etwas von der Tragwalze 1 angehoben werden. Die Erhöhung der Zugspannung zum Durchtrennen erfolgt dann durch eine beschleunigte Drehung der Tragwalze 2, ohne daß sich die Tragwalze 1 unter dem zurückgehaltenen Bahnanfang durchdrehen muß. Das Verkleben des Bahnendes mit den vollen Wickelrollen 4 erfolgt beim Durchlauf der Klebestreifen durch Kontaktlinie zwischen den Wickelrollen 4 und der Ausstoßrolle.A further shortening of the roll change times is achieved if, instead of the ejection bar 26, a freely rotatable ejection roller is used, with which the full winding rollers 4 are lifted slightly from the support roller 1 before the web 5 is severed. The increase in the tensile stress for severing then takes place by an accelerated rotation of the support roller 2 without the support roller 1 having to rotate under the restrained beginning of the web. The end of the web is glued to the full winding rolls 4 when the adhesive strips pass through the contact line between the winding rolls 4 and the ejection roll.

Beim Einsatz des Trennmessers 18 werden bei auslaufender Maschine zunächst Klebestreifen beidseits der späteren Trennlinie auf die Bahn aufgebracht. Die das Bahnende an den Wickelrollen 4 festklebenden Klebestreifen sind dabei so weit von der Trennlinie entfernt, daß sie beim Anhalten der Bahn 5 bereits die Kontaktlinie zwischen den Wickelrollen 4 und der Tragwalze 1 durchlaufen haben. Das Durchtrennen der Bahn 5 erfolgt durch Ausstoßen der Wickelrollen 4 über die Tragwalze 2, wobei das Trennmesser 18 als Abreißkante wirkt. Auch bei dieser Verfahrensweise wird die Bahn 5 im Walzenbett 3 unterhalb der Kontaktlinie der Hülse 8 mit kleinstem Durchmesser an der Tragwalze 1 durchgetrennt. Die Befestigung des neuen Bahnanfangs an den Hülsen 8 bzw. 9 erfolgt nach Ausstoßen der vollen Wickelrollen 4 auf die vorhin beschriebene Weise.When using the separating knife 18, adhesive tape is first applied to the web on both sides of the later separating line when the machine is running out. The adhesive strips that adhere the web end to the winding rollers 4 are so far from the dividing line that they have already passed the contact line between the winding rollers 4 and the support roller 1 when the web 5 stops. The web 5 is severed by ejecting the winding rolls 4 via the support roller 2, the separating knife 18 acting as a tear-off edge. In this procedure, too, the web 5 is cut in the roller bed 3 below the contact line of the sleeve 8 with the smallest diameter on the support roller 1. The attachment of the new beginning of the web to the sleeves 8 and 9 takes place after ejecting the full winding rolls 4 in the manner described above.

Claims (6)

  1. Carrier roller winding machine for winding webs (5) of material, particularly webs of paper or cardboard, onto cores (8, 9)
    - having two carrier rollers (1, 2) between which a roller bed (3) is formed, the web (5) of material being deflected by a carrier roller (1) and guided from below through the nip between the carrier rollers (1, 2),
    - having a device (parting knife 18, perforating device 19) for severing the web (5) when the wound rolls are changed and
    - having a device for holding the web (5), which has a support (12) which is arranged to be raisable and lowerable beneath the carrier roller nip, can be moved upwards into the nip between the carrier rollers (1, 2) and can be applied against the embraced carrier roller (1), characterized in that the support (12), which extends over the working width, carries both at its top end and at its bottom end freely rotatable deflector rollers (14, 16) for at least one rotating elastic belt (17), the diameter of the top deflector rollers (14) being smaller than the distance between the carrier rollers (1, 2), and the bottom deflector rollers (16) being circumferentially offset in the direction of the embraced carrier roller (1), so that when the support (12) is raised one side (17.1) of the belt (17) lies flat against the carrier roller (1) embraced by the web (5).
  2. Carrier roller winding machine according to Claim 1, characterized in that a plurality of belts (17), spaced apart from one another in each case, are arranged over the working width.
  3. Carrier roller winding machine according to Claim 1 or 2, characterized in that the bottom deflector rollers (16) are slidably mounted on the support (12) in order to adjust the belt tension.
  4. Carrier roller winding machine according to one of Claims 1 to 3, characterized in that a parting knife (18) extending transversely over the working width is fastened to the top end of the support (12), above the top deflector rollers (14).
  5. Carrier roller winding machine according to one of Claims 1 to 4, characterized in that one or more adhesive tape dispensers (21) are arranged under the embraced carrier roller (1) in order to apply double-sided adhesive strips to the web (5).
  6. Apparatus according to one of Claims 1 to 5, characterized in that a perforating device (19) is arranged on the inlet side upstream of the embraced carrier roller (1).
EP91915735A 1990-09-21 1991-08-29 King roll reeler Expired - Lifetime EP0506896B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4029914A DE4029914A1 (en) 1990-09-21 1990-09-21 CARRIER ROLLING MACHINE
DE4029914 1990-09-21
PCT/EP1991/001638 WO1992005099A1 (en) 1990-09-21 1991-08-29 King roll reeler

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EP0506896A1 EP0506896A1 (en) 1992-10-07
EP0506896B1 true EP0506896B1 (en) 1994-10-19

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EP (1) EP0506896B1 (en)
JP (1) JP3004356B2 (en)
AT (1) ATE113020T1 (en)
CA (1) CA2073020C (en)
DE (2) DE4029914A1 (en)
ES (1) ES2065702T3 (en)
FI (1) FI105671B (en)
WO (1) WO1992005099A1 (en)

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DE4029914A1 (en) 1992-03-26
JPH05502652A (en) 1993-05-13
ES2065702T3 (en) 1995-02-16
CA2073020C (en) 2003-03-11
EP0506896A1 (en) 1992-10-07
FI922294A (en) 1992-05-20
JP3004356B2 (en) 2000-01-31
FI105671B (en) 2000-09-29
FI922294A0 (en) 1992-05-20
US5273226A (en) 1993-12-28
CA2073020A1 (en) 1992-03-22
WO1992005099A1 (en) 1992-04-02
ATE113020T1 (en) 1994-11-15
DE59103289D1 (en) 1994-11-24

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