EP0385082B1 - Device for winding webs onto core tubes provided with an adhesive coating - Google Patents

Device for winding webs onto core tubes provided with an adhesive coating Download PDF

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Publication number
EP0385082B1
EP0385082B1 EP90101110A EP90101110A EP0385082B1 EP 0385082 B1 EP0385082 B1 EP 0385082B1 EP 90101110 A EP90101110 A EP 90101110A EP 90101110 A EP90101110 A EP 90101110A EP 0385082 B1 EP0385082 B1 EP 0385082B1
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EP
European Patent Office
Prior art keywords
knife
web
winding
severing
severing knife
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
EP90101110A
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German (de)
French (fr)
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EP0385082A3 (en
EP0385082A2 (en
Inventor
Udo Pyka
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.)
Windmoeller and Hoelscher KG
Original Assignee
Windmoeller and Hoelscher KG
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Publication of EP0385082A2 publication Critical patent/EP0385082A2/en
Publication of EP0385082A3 publication Critical patent/EP0385082A3/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H19/00—Changing the web roll
    • B65H19/22—Changing the web roll in winding mechanisms or in connection with winding operations
    • B65H19/28—Attaching the leading end of the web to the replacement web-roll core or spindle
    • B65H19/283—Attaching the leading end of the web to the replacement web-roll core or spindle by applying adhesive to the core
    • 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
    • B65H2301/41894—Cutting knife moving on circular or acuate path, e.g. pivoting around winding roller

Definitions

  • the invention relates to a device for winding webs onto winding sleeves provided with an adhesive application according to the preamble of claim 1.
  • a separating knife attached to a pivotable lever is provided, which cuts the web between the two winding stations by swiveling in accordingly, with a pressure roller on the pivoting lever carrying the separating knife is mounted, which presses the beginning of the path formed by this against the new winding sleeve provided with a glue during the pivoting of the cutting knife to perform the cutting cut.
  • protruding flag which lies in an uncontrollable manner between the initial turns of the web to be wound onto the new winding tube and possibly forms bulges or folds in the turns due to overturning and creasing, which not only can lead to imbalance, but also bulges and unevenness in of the web to be wound up, which prevent smooth winding and can cause permanent deformations in the wound web, which can be disruptive in later processing.
  • a device according to the preamble of claim 1 is known, in which a cutting knife cuts the material web at a distance from the gluing point on the roll core provided with an adhesive application.
  • the carrier of the cutting knife is provided in the running direction of the web behind the cutting knife with a brush which, together with a pressure roller, presses the beginning of the web formed by a separating cut against the roll core provided with an adhesive application.
  • a flag protruding from the gluing point is formed, which lies in an uncontrollable manner between the initial turns of the web to be wound onto the new winding tube and may form beads or folds in the windings due to rollover and creasing, since these can be caused by the Separating cut formed flag is not pressed against the roller core either by the brush or by the pressure roller.
  • a reel changing device for winding tubes with different diameters in which the empty winding tube not provided with an adhesive application at the time of winding is pivoted into the web to be wound up between a pressure roller and a deflection roller in such a way that the web of material new winding tube wrapped like a loop with a larger angle than 180 degrees.
  • the web is then separated by a knife arranged on a swivel lever in the region of the swivel circle of the winding rolls to be changed in such a way that the front cutting edge of the web to be rewound runs into the gap between the empty winding tube and the pressure roller.
  • a brush or an air jet can additionally serve as a support for the web.
  • a turret winder which enables the winding of a web start formed by a separating cut on a winding tube without glue application and without a protruding flag in that by a driving and partially wrapping belt and by additional guide devices, by which is formed by the separating knife itself, the beginning of the web is introduced into the gap formed between the running web and pressed by a pressure roller against the winding tube and the winding tube, and is clamped and taken into the gap in such a way that the beginning of the web wraps around the winding sleeve in a force-fitting manner.
  • This known device is not only structurally very complex because of the required pressing and guiding devices, but it also fails when smooth webs are to be wound up which do not enter into sufficient frictional engagement with the winding tube. Malfunctions can also occur in this known device if the loop formed at the start of the winding by the beginning of the web is not already pulled out during the first rotation, so that the beginning of the web engages the winding tube in a frictional manner.
  • the object of the invention is to provide a device of the type mentioned, one over the glue point protruding flag formed by the beginning of the web is avoided and a smooth, warp and wrinkle-free winding of the beginning of the web onto the winding sleeve provided with an adhesive is guaranteed.
  • the separating knife thus also forms a device which smoothly brushes the beginning of the web formed by the separating cut onto the winding tube, which presses the beginning of the web against the winding tube without a protruding flag and thereby ensures a smooth and wrinkle-free winding.
  • the cutting knife is expediently guided in straight-line guides.
  • the cutting knife or the like behind its cutting edge on its side facing the winding tube with bristles. is busy. These press the coated web start elastically against the circumference of the winding tube, distance tolerances being compensated for.
  • the feed speed of the cutting knife is preferably greater than the peripheral speed of the winding tube.
  • a counter-knife which can be swiveled in or retracted which, in the swiveled-in or retracted state, forms a gap with the winding tube to be rewound, which the separating knife can be retracted with a scissor-like severing of the web.
  • the separating knife is expediently moved by a pneumatic piston-cylinder unit that extends and retracts it.
  • a device blocking the cutting knife in its retracted position is provided, which only releases it by a control device when the piston-cylinder unit or units with the pneumatic moving the cutting knife into the extended position Pressure is applied so that the cutting knife moves out suddenly after the blocking has been released. Because of this abrupt extension, the severed web start is carried along due to the acceleration exerted on it by the cutting knife and spread onto the winding tube.
  • the blocking device can consist of one or more pressure medium-piston-cylinder units, the piston rods of which engage in corresponding recesses in guide rods or the like of the separating knife.
  • the cutting knife with its guides and drive devices is mounted displaceably in and out of further guides of the frame the area of the winding roll that forms after the beginning of the web is glued to the winding tube. Since the finished wound roll is usually lifted out by a crane and takes some time, the new winding roll has already assumed a considerable diameter before it is rotated into this winding position after inserting or clamping a new winding sleeve into the winding station of the winding roll that has just been lifted out can be. For this reason, it is necessary to move the cutting knife and possibly also the counter knife out of their ready positions in order to enable an undisturbed initial winding of the winding roll as long as it is still in its position during the gluing of the beginning of the web.
  • the pivotable counter knife is expediently mounted on further pivot arms and can be pivoted out of the region of the winding roll that is being formed.
  • two synchronously drivable support disks are offset by 180 degrees and are provided with two winding stations and each carry axially parallel guide rollers between these winding stations, which are offset radially outwards relative to the winding shafts or aligned winding mandrels.
  • These guide rollers allow the web to be guided close to the new winding tube on its way to the almost completely wound winding roller, so that the premature cutting knife only has to take the beginning of the web formed by the cutting cut with it over a short distance in order to spread it onto the winding tube.
  • At least one guide roller for the web is expediently mounted on the pivot levers carrying the counter knife which can be pivoted in, so that the course between the two guide rollers, between which the separating cut is carried out, can be precisely determined.
  • Two side parts 1 of the machine frame are connected to each other by a cross member 2.
  • two brackets 3 are welded at a distance from each other. They take up a continuous shaft 4, on which two levers 5 and 6 are also placed at a distance from one another.
  • These two levers 5 and 6 carry two guide rollers 7 and 8 and one angle lever 9 each.
  • Both angle levers 9 are connected to one another via a shaft 10, a bracket 11 with bent legs being fastened on the shaft 10 and carrying a knife 12.
  • Each of the levers 5 and 6 carries a bearing block 13, 14, in each of which a piston-cylinder unit 15 or 16 is pivotally mounted. The piston rods of these piston-cylinder units engage on the angle levers 9, so that the bracket 11 and thus the knife 12 can be pivoted. In the position shown, the knife 12 is in the pivoted-in position, that is to say in the separation position.
  • This knife 12 which is fixed in the separation position, is assigned a further knife 17 which is fastened to two rods 18 and 19.
  • These rods can be moved axially back and forth via ball bushings in two guide cylinders 20 and 21.
  • pneumatic piston-cylinder units 24 and 25 are connected to the guide cylinders 20 and 21 via two plates 22 and 23.
  • the piston rods of these pneumatic piston-cylinder units are also connected to the knife 17. The latter is also in the position immediately before the cut in the position shown. In this position, the rods 18 and 19 are locked.
  • plates 27 and 28, which carry small piston-cylinder units 29 and 30, are welded to the guide cylinders 20 and 21.
  • This ironing process can be supported if the knife 17 is provided with bristles 32 on its upper side, for example.
  • the bracket 11 and thus the knife 12 are pivoted back via the piston-cylinder units 15 and 16 and at the same time the levers 5 and 6 are pivoted back via the piston-cylinder units 33, 34.
  • These piston-cylinder units 33, 34 are connected to the side walls 1 via spacers 35 and 36, the piston rods of these units 33, 34 engaging the continuous shaft 4 via levers 37, 38.
  • the knife 17 is moved back into the position shown in FIG. 2 by actuating the piston-cylinder units 24, 25.
  • the guide cylinders 20 and 21 slidably mounted on guides 41 and 42 on guides 41 and 42.
  • the guides 41 and 42 are parts of supports 43 and 44 to which rodless cylinders 47 and 48 are fastened via holders 45 and 46.
  • the pistons of these cylinder units have, in a known manner, radially outwardly projecting donuts which engage in plates 49 and 50, which are firmly connected to the guide cylinders 20 and 21.

Landscapes

  • Replacement Of Web Rolls (AREA)

Description

Die Erfindung betrifft eine Vorrichtung zum Aufwickeln von Bahnen auf mit einem Klebstoffauftrag versehene Wickelhülsen nach dem Oberbgriff des Patentanspruchs 1.The invention relates to a device for winding webs onto winding sleeves provided with an adhesive application according to the preamble of claim 1.

Bei einem aus der US-PS 26 86 015 bekannten Wendewickler mit zwei an drehbaren Haltearmen vorgesehenen Wickelstationen ist ein an einem schwenkbaren Hebel befestigtes Trennmesser vorgesehen, das durch entsprechendes Einschwenken die Bahn zwischen den beiden Wickelstationen durchtrennt, wobei an dem das Trennmesser tragenden Schwenkhebel eine Andrückrolle gelagert ist, die während des Einschwenkens des Trennmessers zum Ausführen des Trennschnitts den durch diesen gebildeten Bahnanfang an die neue mit einem Leimauftrag versehene Wickelhülse andrückt. Da jedoch der Trennschnitt in beträchtlichem Abstand von der Anklebstelle ausgeführt wird, ergibt sich eine überstehende Fahne, die sich in unkontrollierbarer Weise zwischen die Anfangswindungen der auf die neue Wickelhülse aufzuwickelnden Bahn legt und möglicherweise durch Überschlagen und Knittern Wülste oder Falten in den Windungen bildet, die nicht nur zu einer Unwucht führen können, sondern darüber hinaus auch Ausbuchtungen und Unebenheiten in der aufzuwickelnden Bahn bilden, die ein glattes Aufwickeln verhindern und bleibende Verformungen in der aufgewickelten Bahn hervorrufen können, die sich bei der späteren Verarbeitung störend bemerkbar machen können.In a turret winder known from US-PS 26 86 015 with two winding stations provided on rotatable holding arms, a separating knife attached to a pivotable lever is provided, which cuts the web between the two winding stations by swiveling in accordingly, with a pressure roller on the pivoting lever carrying the separating knife is mounted, which presses the beginning of the path formed by this against the new winding sleeve provided with a glue during the pivoting of the cutting knife to perform the cutting cut. However, since the separating cut is made at a considerable distance from the gluing point, one results protruding flag, which lies in an uncontrollable manner between the initial turns of the web to be wound onto the new winding tube and possibly forms bulges or folds in the turns due to overturning and creasing, which not only can lead to imbalance, but also bulges and unevenness in of the web to be wound up, which prevent smooth winding and can cause permanent deformations in the wound web, which can be disruptive in later processing.

Aus DE-A-33 18 803 ist eine Vorrichtung nach dem Oberbegriff des Patentanspruchs 1 bekannt, bei der ein Schneidmesser die Materialbahn im Abstand von der Anklebestelle auf dem mit einem Klebstoffauftrag versehenen Rollenkern durchtrennt. Der Träger des Schneidmessers ist in Laufrichtung der Bahn hinter dem Schneidmesser mit einer Bürste versehen, die zusammen mit einer Andrückwalze den durch einen Trennschnitt gebildeten Bahnanfang gegen den mit einem Klebstoffauftrag versehenen Rollenkern andrückt. Auch bei dieser bekannten Vorrichtung bildet sich eine über die Anklebstelle vorstehende Fahne aus, die sich in unkontrollierbarer Weise zwischen die Anfangswindungen der auf die neue Wickelhülse aufzuwickelnden Bahn legen und möglicherweise durch Überschlagen und Knittern Wülste oder Falten in den Wicklungen bilden kann, da diese durch den Trennschnitt gebildete Fahne weder durch die Bürste noch durch die Andruckwalze gegen den Rollenkern angedrückt wird.From DE-A-33 18 803 a device according to the preamble of claim 1 is known, in which a cutting knife cuts the material web at a distance from the gluing point on the roll core provided with an adhesive application. The carrier of the cutting knife is provided in the running direction of the web behind the cutting knife with a brush which, together with a pressure roller, presses the beginning of the web formed by a separating cut against the roll core provided with an adhesive application. In this known device, too, a flag protruding from the gluing point is formed, which lies in an uncontrollable manner between the initial turns of the web to be wound onto the new winding tube and may form beads or folds in the windings due to rollover and creasing, since these can be caused by the Separating cut formed flag is not pressed against the roller core either by the brush or by the pressure roller.

Aus DE-A-34 25 490 ist eine Rollenwechseleinrichtung für Wickelhülsen mit unterschiedlichen Durchmessern bekannt, bei der die nicht mit einem Klebstoffauftrag versehene leere Wickelhülse zur Zeit des Wickelns derart in die aufzuwickelnde Warenbahn zwischen eine Andrückwalze und eine Umlenkwalze geschwenkt wird, daß die Warenbahn die neue Wickelhülse schlaufenartig mit einem größeren Winkel als 180 Grad umschlingt. Die Trennung der Bahn erfolgt sodann durch ein an einem Schwenkhebel angeordnetes Messer derart im Bereich des Schwenkkreises der zu wechselnden Wickelrollen, daß die vordere Schnittkante der neu aufzuwickelnden Bahn in den Spalt zwischen der leeren Wickelhülse und der Andrückwalze einläuft. Um eine Führung des neuen Bahnanfangs in dem Spalt zwischen der Andrückwalze und der neuen Wickelhülse zu gewährleisten, kann zusätzlich eine Bürste oder ein Luftstrahl als Anlagehilfe für die Warenbahn dienen.From DE-A-34 25 490 a reel changing device for winding tubes with different diameters is known, in which the empty winding tube not provided with an adhesive application at the time of winding is pivoted into the web to be wound up between a pressure roller and a deflection roller in such a way that the web of material new winding tube wrapped like a loop with a larger angle than 180 degrees. The web is then separated by a knife arranged on a swivel lever in the region of the swivel circle of the winding rolls to be changed in such a way that the front cutting edge of the web to be rewound runs into the gap between the empty winding tube and the pressure roller. In order to ensure that the new web start is guided in the gap between the pressure roller and the new winding tube, a brush or an air jet can additionally serve as a support for the web.

Aus der US-PS 32 79 716 ist ein Wendewickler bekannt, der das Aufwickeln eines durch einen Trennschnitt gebildeten Bahnanfangs auf eine Wickelhülse ohne Leimauftrag und ohne überstehende Fahne dadurch ermöglicht, daß durch ein die Wickelhülse antreibendes und teilweise umschlingendes Band und durch zusätzliche Leiteinrichtungen, von denen eine durch das Trennmesser selbst gebildet wird, der Bahnanfang in den zwischen der auflaufenden und durch eine Andrückwalze an die Wickelhülse angedrückte Bahn und der Wickelhülse gebildeten Spalt eingeführt und in diesen derart eingeklemmt und mitgenommen wird, daß der Bahnanfang die Wickelhüise kraftschlüssig umschlingt. Diese bekannte Vorrichtung ist wegen der erforderlichen Andrück- und Leiteinrichtungen nicht nur konstruktiv sehr aufwendig, sondern sie versagt auch dann, wenn glatte Bahnen aufzuwickeln sind, die keinen genügenden Reibschluß mit der Wickelhülse eingehen. Störungen können sich bei dieser bekannten Vorrichtung auch dann ergeben, wenn die zum Wickelbeginn durch den Bahnanfang gebildete Schlaufe nicht bereits während der ersten Umdrehung ausgezogen wird, so daß der Bahnanfang reibschlüssig an der Wickelhülse angreift.From US-PS 32 79 716 a turret winder is known which enables the winding of a web start formed by a separating cut on a winding tube without glue application and without a protruding flag in that by a driving and partially wrapping belt and by additional guide devices, by which is formed by the separating knife itself, the beginning of the web is introduced into the gap formed between the running web and pressed by a pressure roller against the winding tube and the winding tube, and is clamped and taken into the gap in such a way that the beginning of the web wraps around the winding sleeve in a force-fitting manner. This known device is not only structurally very complex because of the required pressing and guiding devices, but it also fails when smooth webs are to be wound up which do not enter into sufficient frictional engagement with the winding tube. Malfunctions can also occur in this known device if the loop formed at the start of the winding by the beginning of the web is not already pulled out during the first rotation, so that the beginning of the web engages the winding tube in a frictional manner.

Aufgabe der Erfindung ist es, eine Vorrichtung der eingangs angegebenen Art zu schaffen, die eine über die Anklebstelle überstehende, durch den Bahnanfang gebildete Fahne vermeidet und ein glattes, verwerfungs- und faltenfreies Aufwickeln des Bahnanfangs auf die mit einem Klebstoffauftrag versehene Wickelhülse gewährleistet.The object of the invention is to provide a device of the type mentioned, one over the glue point protruding flag formed by the beginning of the web is avoided and a smooth, warp and wrinkle-free winding of the beginning of the web onto the winding sleeve provided with an adhesive is guaranteed.

Erfindungsgemäß wird diese Aufgabe bei einer Vorrichtung der gattungsgemäßen Art durch die kennzeichnenden Merkmale des Anspruchs 1 gelöst. Bei der erfindungsgemäßen Vorrichtung bildet somit das Trennmesser zugleich auch eine den durch den Trennschnitt gebildeten Bahnanfang auf die Wickelhülse glatt aufstreichende Einrichtung, die den Bahnanfang ohne überstehende Fahne an die Wickelhülse andrückt und dadurch ein glattes und faltenfreies Aufwickeln sicherstellt.According to the invention, this object is achieved in a device of the generic type by the characterizing features of claim 1. In the device according to the invention, the separating knife thus also forms a device which smoothly brushes the beginning of the web formed by the separating cut onto the winding tube, which presses the beginning of the web against the winding tube without a protruding flag and thereby ensures a smooth and wrinkle-free winding.

Zweckmäßigerweise ist das Trennmesser in geradlinigen Führungen geführt.The cutting knife is expediently guided in straight-line guides.

In weiterer Ausgestaltung der Erfindung ist vorgesehen, daß das Trennmesser hinter seiner Schneide auf seiner der Wickelhülse zugewandten Seite mit Borsten o.dgl. besetzt ist. Diese drücken den aufgestrichenen Bahnanfang elastisch an den Umfang der Wickelhülse an, wobei Abstandstoleranzen ausgeglichen werden.In a further embodiment of the invention it is provided that the cutting knife or the like behind its cutting edge on its side facing the winding tube with bristles. is busy. These press the coated web start elastically against the circumference of the winding tube, distance tolerances being compensated for.

Um ein gutes Aufstreichen des Bahnanfangs auf die mit einem Klebstoffauftrag versehene Wickelhülse sicherzustellen, ist die Vorschubgeschwindigkeit des Trennmessers vorzugsweise größer als die Umfangsgeschwindigkeit der Wickelhülse.In order to ensure a good spreading of the beginning of the web on the winding tube provided with an adhesive application, the feed speed of the cutting knife is preferably greater than the peripheral speed of the winding tube.

In weiterer Ausgestaltung der Erfindung ist ein einschwenkbares oder einfahrbares Gegenmesser vorgesehen, das im eingeschwenkten oder eingefahrenen Zustand mit der neu zu bewickelnden Wickelhülse einen Spalt bildet, den das Trennmesser unter scherenartiger Durchtrennung der Bahn einfahrbar ist. Diese Ausgestaltung begünstigt einen guten Trennschnitt und darüber hinaus einen sicheren Einzug des durch den Trennschnitt gebildeten Bahnanfangs in den Spalt.In a further embodiment of the invention, a counter-knife which can be swiveled in or retracted is provided which, in the swiveled-in or retracted state, forms a gap with the winding tube to be rewound, which the separating knife can be retracted with a scissor-like severing of the web. This configuration favors a good separating cut and, moreover, a safe drawing of the beginning of the path formed by the separating cut into the gap.

Zweckmäßigerweise wird das Trennmesser von einer dieses aus- und einfahrenden pneumatischen Kolben-Zylinder-Einheit bewegt.The separating knife is expediently moved by a pneumatic piston-cylinder unit that extends and retracts it.

Nach einer besonders vorteilhaften Ausgestaltung der Erfindung ist vorgesehen, daß eine das Trennmesser in seiner eingefahrenen Stellung blockierende Einrichtung vorgesehen ist, die dieses durch eine Steuereinrichtng erst freigibt, wenn der oder die Kolben-Zylinder-Einheiten mit dem das Trennmesser in die ausgefahrene Stellung bewegenden pneumatischen Druck beaufschlagt sind, so daß das Trennmesser nach Lösung der Blockierung schlagartig ausfährt. Aufgrund dieses schlagartigen Ausfahrens wird der durchtrennte Bahnanfang aufgrund der auf diesen durch das Trennmesser ausgeübten Beschleunigung mitgenommen und auf die Wickelhülse aufgestrichen.According to a particularly advantageous embodiment of the invention, it is provided that a device blocking the cutting knife in its retracted position is provided, which only releases it by a control device when the piston-cylinder unit or units with the pneumatic moving the cutting knife into the extended position Pressure is applied so that the cutting knife moves out suddenly after the blocking has been released. Because of this abrupt extension, the severed web start is carried along due to the acceleration exerted on it by the cutting knife and spread onto the winding tube.

Die blockierende Einrichtung kann aus einer oder mehreren Druckmittel-Kolben-Zylinder-Einheiten bestehen, deren Kolbenstangen in entsprechende Ausnehmungen von Führungsstangen o.dgl des Trennmessers greifen.The blocking device can consist of one or more pressure medium-piston-cylinder units, the piston rods of which engage in corresponding recesses in guide rods or the like of the separating knife.

In weiterer Ausgestaltung der Erfindung ist vorgesehen, daß das Trennmesser mit seinen Führungen und Antriebseinrichtungen in weiteren Führungen des Gestells verschieblich gelagert und aus dem Bereich der sich bildenden Wickelrolle nach dem Ankleben des Bahnanfangs auf die Wickelhülse ausfahrbar ist. Da das Ausheben der fertig gewickelten Rolle üblicherweise durch einen Kran erfolgt und einige Zeit in Anspruch nimmt, hat die neue Wickelrolle bereits einen beträchtlichen Durchmesser angenommen, bevor sie nach Einlegen bzw. Einspannen einer neuen Wickelhülse in die Wickelstation der gerade ausgehobenen Wickelrolle in diese Wickelstellung gedreht werden kann. Aus diesem Grunde ist es erforderlich, das Trennmesser und gegebenenfalls auch das Gegenmesser aus ihren Bereitschaftsstellungen herauszubewegen, um ein ungestörtes anfängliches Wickeln der Wickelrolle zu ermöglichen, so lange sich diese noch in ihrer Stellung während des Anklebens des Bahnanfangs befindet.In a further embodiment of the invention, it is provided that the cutting knife with its guides and drive devices is mounted displaceably in and out of further guides of the frame the area of the winding roll that forms after the beginning of the web is glued to the winding tube. Since the finished wound roll is usually lifted out by a crane and takes some time, the new winding roll has already assumed a considerable diameter before it is rotated into this winding position after inserting or clamping a new winding sleeve into the winding station of the winding roll that has just been lifted out can be. For this reason, it is necessary to move the cutting knife and possibly also the counter knife out of their ready positions in order to enable an undisturbed initial winding of the winding roll as long as it is still in its position during the gluing of the beginning of the web.

Zweckmäßigerweise ist das einschwenkbare Gegenmesser auf weiteren Schwenkarmen gelagert und über diese aus dem Bereich der sich bildenden Wickelrolle ausschwenkbar.The pivotable counter knife is expediently mounted on further pivot arms and can be pivoted out of the region of the winding roll that is being formed.

Zweckmäßigerweise sind zwei synchron antreibbare Tragscheiben um 180 Grad versetzt mit zwei Wickelstationen versehen und tragen jeweils zwischen diesen Wickelstationen achsparallele Leitrollen, die gegenüber den Wickelwellen oder fluchtenden Wickeldornen radial nach außen versetzt sind. Diese Leitrollen gestatten es, die Bahn auf ihrem Wege zu der nahezu fertig gewickelten Wickelrolle dicht an der neuen Wickelhülse vorbeizuführen, so daß das vorschnellende Trennmesser den durch den Trennschnit gebildeten Bahnanfang nur über eine kurze Strecke mitnehmen muß, um diesen auf die Wickelhülse aufzustreichen.Appropriately, two synchronously drivable support disks are offset by 180 degrees and are provided with two winding stations and each carry axially parallel guide rollers between these winding stations, which are offset radially outwards relative to the winding shafts or aligned winding mandrels. These guide rollers allow the web to be guided close to the new winding tube on its way to the almost completely wound winding roller, so that the premature cutting knife only has to take the beginning of the web formed by the cutting cut with it over a short distance in order to spread it onto the winding tube.

Zweckmäßigerweise ist an den das einschwenkbare Gegenmesser tragenden Schwenkhebeln mindestens eine Leitwalze für die Bahn gelagert, so daß der Verlauf zwischen den beiden Leitwalzen, zwischen denen der Trennschnitt ausgeführt wird, genau festgelegt werden kann.At least one guide roller for the web is expediently mounted on the pivot levers carrying the counter knife which can be pivoted in, so that the course between the two guide rollers, between which the separating cut is carried out, can be precisely determined.

Ein Ausführungsbeispiel der Erfindung wird nachstehend anhand der Zeichnung näher erläutert. In dieser zeigt

Fig.1
einen Wendewickler in schematischer Seitenansicht und
Fig.2
den Wendewickler nach Fig.1 in Draufsicht, wobei dessen Teile der besseren Übersichtlichkeit halber auseinandergezogen bzw. um 90 Grad verdreht dargestellt sind.
An embodiment of the invention is explained below with reference to the drawing. In this shows
Fig. 1
a turret winder in a schematic side view and
Fig. 2
1 in plan view, the parts of which are shown apart for the sake of clarity or shown rotated by 90 degrees.

Zwei Seitenteile 1 des Maschinengestells sind durch eine Traverse 2 miteinander verbunden. Mit dieser Traverse 2 sind zwei Konsolen 3 mit Abstand zueinander verschweißt. Sie nehmen eine durchgehende Welle 4 auf, auf die ebenfalls mit Abstand zueinander zwei Hebel 5 und 6 aufgesetzt sind. Diese beiden Hebel 5 und 6 tragen zwei Führungsrollen 7 und 8 sowie je einen Winkelhebel 9. Beide Winkelhebel 9 sind über eine Welle 10 miteinander verbunden, wobei auf der Welle 10 ein Bügel 11 mit gebogenen Schenkeln befestigt ist, der ein Messer 12 trägt. Jeder der Hebel 5 und 6 trägt einen Lagerbock 13,14, in dem jeweils eine Kolben-Zylinder-Einheit 15 bzw. 16 schwenkbar gelagert ist. Die Kolbenstangen dieser Kolben-Zylinder-Einheiten greifen an den Winkelhebeln 9 an, so daß der Bügel 11 und damit das Messer 12 verschwenkt werden kann. In der dargestellten Position befindet sich das Messer 12 in der eingeschwenkten Stellung, das heißt in Trennposition.Two side parts 1 of the machine frame are connected to each other by a cross member 2. With this traverse 2, two brackets 3 are welded at a distance from each other. They take up a continuous shaft 4, on which two levers 5 and 6 are also placed at a distance from one another. These two levers 5 and 6 carry two guide rollers 7 and 8 and one angle lever 9 each. Both angle levers 9 are connected to one another via a shaft 10, a bracket 11 with bent legs being fastened on the shaft 10 and carrying a knife 12. Each of the levers 5 and 6 carries a bearing block 13, 14, in each of which a piston-cylinder unit 15 or 16 is pivotally mounted. The piston rods of these piston-cylinder units engage on the angle levers 9, so that the bracket 11 and thus the knife 12 can be pivoted. In the position shown, the knife 12 is in the pivoted-in position, that is to say in the separation position.

Diesem in der Trennposition feststehendem Messer 12 ist ein weiteres Messer 17 zugeordnet, welches an zwei Stangen 18 und 19 befestigt ist. Diese Stangen sind über Kugelbüchsen in zwei Führungszylindern 20 und 21 axial hin- und herbeweglich. Zu diesem Zweck sind über zwei Platten 22 und 23 pneumatische Kolben-Zylinder-Einheiten 24 und 25 mit den Führungszylindern 20 und 21 verbunden. Die Kolbenstangen dieser pneumatischen Kolben-Zylinder-Einheiten sind ebenfalls mit dem Messer 17 verbunden. Letzteres befindet sich inn der dargestellten Stellung ebenfalls in der Position unmittelbar vor dem Schnitt. In dieser Lage sind die Stangen 18 und 19 verriegelt. Zu diesem Zweck sind mit den Führungszylindern 20 und 21 Platten 27 und 28 verschweißt, welche kleine Kolben-Zylinder-Einheiten 29 und 30 tragen. Die Kolbenstangen dieser Kolben-Zylinder-Einheiten sind ausgefahren und greifen durch in den Führungszylindern 20 und 21 nicht dargestellte Bohrungen jeweils in eine Ringnut der Stangen 18 und 19 ein. Sodann werden die Kolben-Zylinder-Einheiten 24 und 25 mit Preßluft beaufschlagt und vorgespannt. Erst dann werden die Kolben der Kolben-Zylinder-Einheiten 29 und 30 eingefahren, so daß das Messer 17 aus seiner in der Figur 2 mit vollen Linien dargestellten Lage schlagartig nach vorn schnellt und dabei die Bahn 26 durchtrennt. Als Gegenschneide für das Messer 17 dient dabei das in Schneidposition eingeschwenkte Gegenmesser 12. Aus der Figur 1 wird deutlich, daß dabei der Bahnanfang durch das Messer 17 auf die vorbeleimte Wickelhülse 31 sozusagen aufgebügelt wird, so daß keine freie Fahne mehr entsteht. Dieser Bügelvorgang kann noch unterstützt werden, wenn das Messer 17 auf seiner Oberseite beispielsweise mit Borsten 32 versehen wird. Unmittelbar nach dem Trennvorgang wird der Bügel 11 und somit das Messer 12 über die Kolben-Zylinder-Einheiten 15 und 16 zurückgeschwenkt und gleichzeitig die Hebel 5 und 6 über die Kolben-Zylinder-Einheiten 33, 34 zurückgeschwenkt. Diese Kolben-Zylinder-Einheiten 33, 34 sind mit den Seitenwänden 1 über Distanzstücke 35 und 36 verbunden, wobei die Kolbenstangen dieser Einheiten 33,34 über Hebel 37,38 an der durchgehenden Welle 4 angreifen.This knife 12, which is fixed in the separation position, is assigned a further knife 17 which is fastened to two rods 18 and 19. These rods can be moved axially back and forth via ball bushings in two guide cylinders 20 and 21. For this purpose, pneumatic piston-cylinder units 24 and 25 are connected to the guide cylinders 20 and 21 via two plates 22 and 23. The piston rods of these pneumatic piston-cylinder units are also connected to the knife 17. The latter is also in the position immediately before the cut in the position shown. In this position, the rods 18 and 19 are locked. For this purpose, plates 27 and 28, which carry small piston-cylinder units 29 and 30, are welded to the guide cylinders 20 and 21. The piston rods of these piston-cylinder units are extended and engage in an annular groove in the rods 18 and 19 through bores (not shown) in the guide cylinders 20 and 21. Then the piston-cylinder units 24 and 25 are pressurized with compressed air and biased. Only then are the pistons of the piston-cylinder units 29 and 30 retracted, so that the knife 17 suddenly flies forward from its position shown in full lines in FIG. 2 and thereby cuts the web 26. The counter knife 12 pivoted into the cutting position serves as the counter knife for the knife 17. It is clear from FIG. 1 that the beginning of the web is ironed onto the pre-glued winding tube 31, so to speak, so that there is no longer a free flag. This ironing process can be supported if the knife 17 is provided with bristles 32 on its upper side, for example. Immediately after the separation process, the bracket 11 and thus the knife 12 are pivoted back via the piston-cylinder units 15 and 16 and at the same time the levers 5 and 6 are pivoted back via the piston-cylinder units 33, 34. These piston-cylinder units 33, 34 are connected to the side walls 1 via spacers 35 and 36, the piston rods of these units 33, 34 engaging the continuous shaft 4 via levers 37, 38.

Ebenso wie das Messer 12 wird auch das Messer 17 durch Betätigung der Kolben-Zylinder-Einheiten 24,25 in die in Figur 2 dargestellte Lage zurückgefahren. Bei anwachsendem Wickeldurchmesser würde jedoch der Wickel mit dem Messer 17, selbst wenn es in der in Figur 2 dargestellten Lage sich befindet, kollidieren. Um dies zu verhindern. sind die Führungszylinder 20 und 21 über Gleitschuhe 39 und 40 auf Führungen 41 und 42 verschiebbar gelagert. Die Führungen 41 und 42 sind Teile von Trägern 43 und 44, an denen über Halter 45 und 46 kolbenstangenlose Zylinder 47 und 48 befestigt sind. Die Kolben dieser Zylinder-Einheiten weisen in bekannter Weise radial nach außen vorkragende Krapfen auf, die in Platten 49 und 50 eingreifen, welche fest mit den Führungszylindern 20 und 21 verbunden sind. Auf diese Weise werden demnach bei Betätigung der kolbenstangenlosen Zylinder-Einheiten die Führungszylinder verschoben, und zwar mit Bezug auf die Figur 2 nach links (nach einem erfolgten Schnitt.) Die Träger 43 und 44 selbst werden durch senkrechte Stützen 51,52 gehalten die mit der Quertraverse 2 fest verbunden sind. Die Lagerung und der Antrieb der beiden Drehscheiben 53 und 54 sowie Lagerung der Wickelwellen 55 und 56 werden nicht näher beschrieben, da dies zum bekannten Stand der Technik gehört.Like the knife 12, the knife 17 is moved back into the position shown in FIG. 2 by actuating the piston-cylinder units 24, 25. As the winding diameter increases, however, the winding with the knife 17 would, even if it were is in the position shown in Figure 2, collide. To prevent this. are the guide cylinders 20 and 21 slidably mounted on guides 41 and 42 on guides 41 and 42. The guides 41 and 42 are parts of supports 43 and 44 to which rodless cylinders 47 and 48 are fastened via holders 45 and 46. The pistons of these cylinder units have, in a known manner, radially outwardly projecting donuts which engage in plates 49 and 50, which are firmly connected to the guide cylinders 20 and 21. In this way, when the rodless cylinder units are actuated, the guide cylinders are shifted to the left with reference to FIG. 2 (after a cut has been made). The supports 43 and 44 themselves are held by vertical supports 51, 52 which are connected to the Crossbar 2 are firmly connected. The storage and the drive of the two turntables 53 and 54 and the mounting of the winding shafts 55 and 56 are not described in detail since this is part of the known prior art.

In der Darstellung gemäß Fig.2 sind die Teile der besseren Übersichtlichkeit halber auseinandergezogen bzw. um 90 Grad verdreht dargestellt.In the illustration according to FIG. 2, the parts are drawn apart for the sake of clarity or shown rotated by 90 degrees.

Claims (10)

  1. Device for winding up webs (26) onto winding sleeves (31) which are provided with an adhesive coating and are secured on driven shafts or holding mandrels of at least two winding stations (55, 56) mounted rotatably about a central axis and provided with a rotary drive, having guiding rollers (7, 8) guiding the web (26) to be wound up, having a severing knife (17) severing the web, and having a device for pressing the new beginning of a web, formed by the severing cut, onto the winding sleeve (31) to be newly wound onto, the severing knife (17) being movable on guides (18 - 21), fixed on the frame, between a retracted position and an extended position and, on its way into the extended position, severing the web (26) which is running to the roll wound virtually to completion close to the winding sleeve (31) to be newly wound onto; characterized in that the web (16) is guided past the winding sleeve (31); in that the severing knife touches or virtually touches the winding sleeve (31), rotating in its advancing direction, approximately tangentially so that it thereby takes along the beginning of a web formed by the severing cut and, as a result, a contact pressure of the web (26) against the winding sleeve (31) takes place exclusively due to the severing knife (17); in that the severing knife (17) can be moved by retracting and extending pneumatic piston-cylinder units (24, 25); and in that there is provided a device which blocks the severing knife (17) in its retracted position and releases the latter by a control device only when the piston-cylinder unit or units (24, 25) is or are subjected to the pneumatic pressure moving the severing knife (17) into the extended position, so that the severing knife extends abruptly after discontinuing the blocking.
  2. Device according to Claim 1, characterized in that the severing knife (17) is guided in rectilinear guides (24, 25).
  3. Device according to Claim 1 or 2, characterized in that the severing knife (17) is set with bristles (32) or the like behind its cutting edge on its side facing the winding sleeve (31).
  4. Device according to one of Claims 1 to 3, characterized in that there is provided a counter-knife (12) which can be swivelled-in or moved-in and, in the swivelled-in or moved-in state, bounds a gap with the winding sleeve (31) to be newly wound onto, into which gap the severing knife (17) can be moved, severing the web (26) in the manner of a scissors cut.
  5. Device according to one of Claims 1 to 4, characterized in that the severing knife (17) can be moved by these retracting and extending pneumatic piston-cylinder units (24, 25).
  6. Device according to Claims 1 to 5, characterized in that the blocking device comprises one or more pressure-medium piston-cylinder units (29, 30), the piston rods of which engage in corresponding recesses of guide rods (18, 19) or the like of the severing knife (17).
  7. Device according to one of Claims 1 to 6, characterized in that the severing knife (17) is mounted displaceably with its guides and drive devices in further guides (41, 42) of the frame and can be moved out from the region of the forming wound roll after adhesive attachment of the beginning of the web onto the winding sleeve (31).
  8. Device according to one of Claims 1 to 7, characterized in that the counter-knife (12) which can be swivelled-in is mounted on further swivel arms (5, 6) and, by means of the latter, can be swivelled-out from the region of the wound roll forming.
  9. Device according to one of Claims 1 to 8, characterized in that two synchronously drivable carrying plates (53, 54), offset by 180 degrees, are provided with two winding stations (55, 56) and in each case carry between the winding stations axially parallel guiding rollers which are offset radially outwards with respect to the winding shafts (55, 56).
  10. Device according to one of Claims 1 to 9, characterized in that there is at least one guiding roller (7, 8) for the web (26) mounted on the swivel levers carrying the counter-knife (12) which can be swivelled in.
EP90101110A 1989-02-28 1990-01-19 Device for winding webs onto core tubes provided with an adhesive coating Expired - Lifetime EP0385082B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3906309A DE3906309A1 (en) 1989-02-28 1989-02-28 DEVICE FOR REWINDING FILES ON WINDING SLEEVES PROVIDED WITH AN ADHESIVE ORDER
DE3906309 1989-02-28

Publications (3)

Publication Number Publication Date
EP0385082A2 EP0385082A2 (en) 1990-09-05
EP0385082A3 EP0385082A3 (en) 1991-01-02
EP0385082B1 true EP0385082B1 (en) 1994-12-14

Family

ID=6375149

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90101110A Expired - Lifetime EP0385082B1 (en) 1989-02-28 1990-01-19 Device for winding webs onto core tubes provided with an adhesive coating

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EP (1) EP0385082B1 (en)
DE (2) DE3906309A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5654031A (en) * 1994-09-06 1997-08-05 Minnesota Mining And Manufacturing Company Web coating apparatus
DE102015114391B4 (en) 2015-08-28 2020-05-20 Windmöller & Hölscher Kg Receiving means for receiving film material
CN107954014B (en) * 2017-12-14 2023-09-29 台州弗德机械设备有限公司 Full-automatic continuous wrapping machine
CN116812615B (en) * 2023-08-28 2023-11-03 常州金纬片板设备制造有限公司 Plastic sheet rolling equipment

Citations (2)

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Publication number Priority date Publication date Assignee Title
US4530265A (en) * 1982-11-03 1985-07-23 Worldwide Converting Machinery, Inc. Rotary cutoff knife
EP0363295A1 (en) * 1988-10-05 1990-04-11 Monomatic, S.A. Device for cutting and uniting a moving web on a mandrel in continuous-winding machines

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Publication number Priority date Publication date Assignee Title
SE452739B (en) * 1982-05-26 1987-12-14 Amals Mekaniska Verkstad SET UP AND DEVICE TO CONTINUOUSLY ROLL UP A MATERIAL COVER
DE3425490A1 (en) * 1984-07-11 1986-01-23 Lenze GmbH & Co KG Aerzen, 3258 Aerzen REEL CHANGE DEVICE FOR SLEEVES WITH DIFFERENT DIAMETERS
DE3644950A1 (en) * 1986-08-06 1988-03-24 Sundwiger Eisen Maschinen Pressing and separating device for a metal strip to be wound on a winding reel

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4530265A (en) * 1982-11-03 1985-07-23 Worldwide Converting Machinery, Inc. Rotary cutoff knife
EP0363295A1 (en) * 1988-10-05 1990-04-11 Monomatic, S.A. Device for cutting and uniting a moving web on a mandrel in continuous-winding machines

Also Published As

Publication number Publication date
EP0385082A3 (en) 1991-01-02
EP0385082A2 (en) 1990-09-05
DE3906309A1 (en) 1990-08-30
DE59007968D1 (en) 1995-01-26

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