EP1238935B1 - Lower blade shaft for a rotary slitting machine - Google Patents

Lower blade shaft for a rotary slitting machine Download PDF

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Publication number
EP1238935B1
EP1238935B1 EP02004593A EP02004593A EP1238935B1 EP 1238935 B1 EP1238935 B1 EP 1238935B1 EP 02004593 A EP02004593 A EP 02004593A EP 02004593 A EP02004593 A EP 02004593A EP 1238935 B1 EP1238935 B1 EP 1238935B1
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EP
European Patent Office
Prior art keywords
cutting
lower blade
knife shaft
knives
blade shaft
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
EP02004593A
Other languages
German (de)
French (fr)
Other versions
EP1238935A2 (en
EP1238935A3 (en
Inventor
Wilfried Oehmen
Josef Pakula
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Hydro Aluminium Deutschland GmbH
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Hydro Aluminium Deutschland GmbH
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Publication date
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Publication of EP1238935A2 publication Critical patent/EP1238935A2/en
Publication of EP1238935A3 publication Critical patent/EP1238935A3/en
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Publication of EP1238935B1 publication Critical patent/EP1238935B1/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
    • B65H35/00—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers
    • B65H35/02—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers from or with longitudinal slitters or perforators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/0006—Cutting members therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/20—Cutting beds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/0006—Cutting members therefor
    • B26D2001/0046—Cutting members therefor rotating continuously about an axis perpendicular to the edge
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/0006—Cutting members therefor
    • B26D2001/0066—Cutting members therefor having shearing means, e.g. shearing blades, abutting blades
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/20—Cutting beds
    • B26D2007/202—Rollers or cylinders being pivoted during operation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/10—Rollers
    • B65H2404/13—Details of longitudinal profile
    • B65H2404/131—Details of longitudinal profile shape
    • B65H2404/1316—Details of longitudinal profile shape stepped or grooved
    • B65H2404/13161—Regularly spaced grooves
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/768—Rotatable disc tool pair or tool and carrier
    • Y10T83/7809—Tool pair comprises rotatable tools
    • Y10T83/783—Tool pair comprises contacting overlapped discs
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/768—Rotatable disc tool pair or tool and carrier
    • Y10T83/7872—Tool element mounted for adjustment
    • Y10T83/7876—Plural, axially spaced tool elements

Definitions

  • the invention relates to a lower blade shaft for a slitter for longitudinal cutting of films and tapes in strips having at least one lower blade wherein the lower blade shaft has a number of lower blades beyond the number of cuts, the lower blades are arranged at substantially regular intervals on the lower blade shaft, the distances between the Lower blades have a flexible choice of the width of the strips permitting, the Untermesserwalle having a plurality of cutting bushings, the cutting bushings each having a plurality of lower blades and a slitter for slitting films and strips into strips.
  • Slitters are used in particular for cutting aluminum foils and strips but also for cutting composites of aluminum and paper and of aluminum and plastic and for cutting other films, tapes and composite materials in a thickness range of a few microns to about one mm.
  • the films or ribbons to be cut can be both bright and painted.
  • the composites to be cut are produced, for example, by laminating or extruding.
  • the lower blade shaft according to the invention or the roller cutting machine according to the invention is exemplified by the cutting of aluminum foils or strips explained.
  • Under aluminum or aluminum materials are understood alloys that contain about at least 90% aluminum.
  • billets in widths between 900 and 2200 mm are poured in a first stage and rolled first to warm and finally cold to final thickness.
  • the aluminum semi-finished products industry produces the aluminum foils and strips in various final thicknesses and widths.
  • the final thickness is determined by the Stichab66 in the rolling process.
  • the final width is produced in one or more layers by slitting the strips or films on what are known as slitter-cutting machines.
  • the present invention also relates in particular to the so-called paper cut method.
  • the tape or the film is passed over a lower knife shaft with a certain wrap.
  • An immersed in the lower blade shaft upper blade which, for example, either as a razor blade or as Circular blade is formed, the aluminum cuts in one point in the manner of a scissors or knife cut.
  • the upper blade is conventionally pressed by a spring against the lower blade.
  • Newer methods use instead of a spring pneumatic cylinder or diaphragm cylinder.
  • the cutting widths for the tapes to be cut must be adjusted regularly.
  • the upper blade must first be set to the new cutting widths, which is possible with relatively little effort in a short time.
  • the entire lower blade shaft must be changed to incorporate a lower blade shaft, on which the lower blade are arranged on the, corresponding to the new cutting width axial position on the lower blade shaft.
  • fitting pieces are arranged between the lower blades on the lower blade shaft to produce the required distances. This causes a considerable amount of setup time and thus high costs.
  • a lower blade shaft which has only one side of the springs of a tongue and groove division cutting edges, is known from Swiss Patent CH 288 737.
  • the present invention is based on the object to provide a lower blade shaft or a slitter cutting machine, with which the set-up times for producing modified cutting widths and the use of other cutting methods are substantially reduced.
  • the previously derived and indicated object is achieved for a Untermessewelle for a slitter for slitting films and tapes in strips with at least one lower blade, characterized in that the lower blades are formed as two-sided cutting edges on the springs of a tongue and groove division of the lower blade shaft, said Cutting edges have a cutting angle of about 3 degrees and the grooves have a width of 0.8 to 2 mm, so that the Untertondernerwelle is useful for both the paper cutting method and for the razor blade cutting method. Characterized in that the lower blade shaft lower blade are arranged so that they allow a flexible choice of the width of zuzuharden strips, it is ensured that a change of the slitter can be made to changed cutting widths without downtime for conversions to the lower blade shaft.
  • the distance between the arranged on a lower blade shaft according to the invention lower blade can be reduced by the fact that the lower blade are formed alternately as a lower blade for left and right section. A reduced distance of the lower blade ensures a more flexible adaptation to desired cutting widths.
  • the alternate arrangement of lower blades for left and right cuts can be particularly suitable in that the lower blade as a double-sided Cutting edges are formed on the springs of a tongue and groove division of the lower blade shaft.
  • the lower blade shaft has a plurality of cutting bushings and the cutting bushings each having a plurality of lower blades, it is ensured that at a wear of the lower blade in certain areas of the lower blade shaft not the entire lower blade shaft must be replaced.
  • the cutting bushes which have a particularly high degree of wear, can be exchanged, while the cutting bushes having no or less wear can continue to be used.
  • the lower blade are arranged at a distance of about 0.5 to 10 mm from each other.
  • Particularly advantageous is the arrangement (division) of the cutting edges at a distance of about 0.8 to 2 mm from each other.
  • a groove width in the range of 0.8 to 2 mm has proven to be particularly suitable in terms of low pressure and in view of the provision of sufficient space for immersion of an upper blade.
  • a slitter for longitudinal slitting of films and tapes in strips with a lower blade shaft according to the invention and at least two dipping into the lower blade shaft upper blades.
  • the cutting bush 1 of a lower blade shaft according to the invention shown in Fig. 1 consists of an approximately 10 cm long hollow cylinder in the embodiment, on which on the outer cylindrical surface in a tongue and groove division 2 a plurality of lower blades 3 are arranged.
  • the lower blade 3 are, as shown in Fig. 2a) and b) clearly visible as two-sided cutting edges 4, 5 formed on the springs 6 of the tongue and groove division 2.
  • the distance between the cutting edges 4, 5 is in the illustrated embodiment about the grooves 7 about 0.8 mm and about the springs 6 about 1.2 mm.
  • an upper blade 8 is formed as the upper blade of a razor blade cutting system. Accordingly, a razor blade 9 immersed within a groove 7 in the lower blade 3 a.
  • Fig. 2b the immersion of a circular blade 10 is shown as a top blade in a scissors cutting system in the lower blade 3.
  • Fig. 2b) is further shown that the cutting edges 4, 5 have a cutting angle of about 3 °.
  • the springs 6 have in the embodiment of a lower blade shaft according to the invention shown in Fig. 2 on a height of about 2 mm.
  • a built-in a not shown in detail slitter embodiment of a lower blade shaft 11 according to the invention is shown.
  • the lower blades 8 are guided with the help of Obermesseranstellvorraumen 12.

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  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Nonmetal Cutting Devices (AREA)
  • Crushing And Pulverization Processes (AREA)
  • Shearing Machines (AREA)
  • Sawing (AREA)
  • Turning (AREA)
  • Manufacture Of Motors, Generators (AREA)
  • Threshing Machine Elements (AREA)
  • Earth Drilling (AREA)
  • Debarking, Splitting, And Disintegration Of Timber (AREA)

Abstract

The lower cutter shaft has at least a number of lower cutters (3) on it, in fact an above-average number of them. The lower cutters are set out at a regular spacings. The spacings between these cutters provide a wide selection of strip width from which to select the one most appropriate for the strip required to be cut.

Description

Die Erfindung betrifft eine Untermesserwelle für eine Rollenschneidmaschine zum Längsschneiden von Folien und Bändern in Streifen mit mindestens einem Untermesser wobei die Untermesserwelle eine über die Schnittanzahl hinausgehende Anzahl von Untermessern aufweist, die Untermesser in im wesentlichen regelmäßigen Abständen auf der Untermesserwelle angeordnet sind, die Abstände zwischen den Untermessern eine flexible Wahl der Breite der Streifen zulassend gewählt sind, die Untermesserwalle eine Mehrzahl von Schneidbüchsen aufweist, wobei die Schneidbüchsen jeweils eine Mehrzahl von Untermessern aufweisen sowie eine Rollenschneidmaschine zum Längsschneiden von Folien und Bändern in Streifen.The invention relates to a lower blade shaft for a slitter for longitudinal cutting of films and tapes in strips having at least one lower blade wherein the lower blade shaft has a number of lower blades beyond the number of cuts, the lower blades are arranged at substantially regular intervals on the lower blade shaft, the distances between the Lower blades have a flexible choice of the width of the strips permitting, the Untermesserwalle having a plurality of cutting bushings, the cutting bushings each having a plurality of lower blades and a slitter for slitting films and strips into strips.

Rollenschneidmaschinen werden insbesondere zum Schneiden von Aluminiumfolien und -bändern aber auch zum Schneiden von Verbundwerkstoffen aus Aluminium und Papier sowie aus Aluminium und Kunststoff und zum Schneiden von anderen Folien, Bändern und Verbundwerkstoffen in einem Dickenbereich von einigen µm bis zu etwa einem mm eingesetzt. Die zu schneidenden Folien oder Bänder können sowohl blank als auch lackiert sein. Die zu schneidenden Verbundwerkstoffe werden beispielsweise durch Kaschieren oder Extrudieren hergestellt.Slitters are used in particular for cutting aluminum foils and strips but also for cutting composites of aluminum and paper and of aluminum and plastic and for cutting other films, tapes and composite materials in a thickness range of a few microns to about one mm. The films or ribbons to be cut can be both bright and painted. The composites to be cut are produced, for example, by laminating or extruding.

Im weiteren wird die erfindungsgemäße Untermesserwelle bzw. die erfindungsgemäße Rollenschneidmaschine am Beispiel des Schneidens von Aluminiumfolien oder -Bändern erläutert. Unter Aluminium bzw. Aluminiumwerkstoffen werden dabei Legierungen verstanden, die etwa mindestens 90% Aluminium enthalten.Furthermore, the lower blade shaft according to the invention or the roller cutting machine according to the invention is exemplified by the cutting of aluminum foils or strips explained. Under aluminum or aluminum materials are understood alloys that contain about at least 90% aluminum.

Zur Herstellung von Aluminiumfolien und -bändern werden in einer ersten Stufe Barren in Breiten zwischen 900 und 2200 mm gegossen und zunächst warm und abschließend kalt auf Enddicke gewalzt. Je nach Einsatzzweck in der anschließenden Verarbeitung stellt die Aluminium-Halbzeugindustrie die Aluminiumfolien und -bänder in unterschiedlichen Enddicken und -breiten her. Dabei wird die Enddicke durch die Stichabnahmen im Walzprozeß bestimmt. Die Endbreite wird durch Längsteilen der Bänder oder Folien auf sogenannten Rollenschneidmaschinen ein- oder mehrlagig hergestellt.For the production of aluminum foils and strips, billets in widths between 900 and 2200 mm are poured in a first stage and rolled first to warm and finally cold to final thickness. Depending on the intended use in subsequent processing, the aluminum semi-finished products industry produces the aluminum foils and strips in various final thicknesses and widths. The final thickness is determined by the Stichabnahmen in the rolling process. The final width is produced in one or more layers by slitting the strips or films on what are known as slitter-cutting machines.

Eine Rollenschneidmaschine besteht grundsätzlich aus drei Baugruppen,

  1. 1. einem Abwickler, auf dem das sogenannte Mutterband abgewickelt wird,
  2. 2. einer Schneidpartie, in der das Band durch Messer der Länge nach in schmalere Streifen geschnitten wird und
  3. 3. einer Aufwicklung, in der die zuvor geschnittenen Streifen zu Rollen aufgewickelt werden.
A slitter rewinder basically consists of three subassemblies,
  1. 1. an unwinder on which the so-called mother tape is wound up,
  2. 2. a cutting section in which the strip is cut by knives lengthwise into narrower strips and
  3. 3. a winding in which the previously cut strips are wound into rolls.

Die vorliegende Erfindung bezieht sich insbesondere auch auf das sogenannte Scherenschnitt-Verfahren. Hierbei wird das Band oder die Folie über eine Untermesserwelle mit einer gewissen Umschlingung geführt. Ein in die Untermesserwelle eintauchendes Obermesser, welches beispielsweise entweder als Rasierklinge oder als Rundmesser ausgebildet ist, schneidet das Aluminium in einem Punkt in der Art eines Scheren- bzw. Messerschnitts. Das Obermesser wird herkömmlicherweise durch eine Feder an das Untermesser angedrückt. Neuere Verfahren nutzen hierzu statt einer Feder Pneumatikzylinder oder Membranzylinder.The present invention also relates in particular to the so-called paper cut method. Here, the tape or the film is passed over a lower knife shaft with a certain wrap. An immersed in the lower blade shaft upper blade, which, for example, either as a razor blade or as Circular blade is formed, the aluminum cuts in one point in the manner of a scissors or knife cut. The upper blade is conventionally pressed by a spring against the lower blade. Newer methods use instead of a spring pneumatic cylinder or diaphragm cylinder.

Beim Längsschneiden von Folien oder Bänder müssen regelmäßig die Schnittbreiten für die zu schneidenden Bänder angepaßt werden. Hierzu müssen zunächst die Obermesser auf die neuen Schnittbreiten eingestellt werden, was mit vergleichsweise geringem Aufwand in kurzer Zeit möglich ist. Neben der Anpassung der Obermesser an die Schnittbreiten muß auch die Untermesserwelle an die neuen Schnittbreiten angepaßt werden. Hierzu muß bei den bekannten Rollenschneidmaschinen die gesamte Untermesserwelle gewechselt werden, um eine Untermesserwelle einzubauen, auf der die Untermesser an den, zu der neuen Schnittbreite korrespondierenden axialen Position auf der Untermesserwelle angeordnet sind. Hierzu werden auf der Untermesserwelle Paßstücke zwischen den Untermessern angeordnet, um die erforderlichen Abstände herzustellen. Dies verursacht einen beträchtlichen Aufwand an Rüstzeiten und damit hohe Kosten.When slitting films or tapes, the cutting widths for the tapes to be cut must be adjusted regularly. For this purpose, the upper blade must first be set to the new cutting widths, which is possible with relatively little effort in a short time. In addition to the adaptation of the upper blade to the cutting widths and the lower blade shaft must be adapted to the new cutting widths. For this purpose, in the known slitter rewinder, the entire lower blade shaft must be changed to incorporate a lower blade shaft, on which the lower blade are arranged on the, corresponding to the new cutting width axial position on the lower blade shaft. For this purpose, fitting pieces are arranged between the lower blades on the lower blade shaft to produce the required distances. This causes a considerable amount of setup time and thus high costs.

Aus dem Katalog "Rollenschneid Technologie" der Wilhelm Bielstein KG ist eine gattungsgemäß Untermesserwelle für den Scherenschnitt bekannt, welche eine minimale Nutbreite von 2,2 mm aufweist.From the catalog "Wheels Cutting Technology" of the Wilhelm Bielstein KG a generic lower knife shaft for paper cutting is known, which has a minimum groove width of 2.2 mm.

Eine Untermesserwelle, welche nur an einer Seite der Federn einer Nut-Feder-Teilung Schneidkanten aufweist, ist aus der Schweizer Patentschrift CH 288 737 bekannt.A lower blade shaft, which has only one side of the springs of a tongue and groove division cutting edges, is known from Swiss Patent CH 288 737.

Ausgehend von dem zuvor beschriebenen Stand der Technik und den hiermit verbundenen Problemen liegt der vorliegenden Erfindung die Aufgabe zu Grunde, eine Untermesserwelle bzw. eine Rollenschneidmaschine zur Verfügung zu stellen, mit der die Rüstzeiten zur Herstellung geänderter Schnittbreiten und der Verwendung anderer Schnittverfahren wesentlich verringert sind.Based on the prior art described above and the associated problems, the present invention is based on the object to provide a lower blade shaft or a slitter cutting machine, with which the set-up times for producing modified cutting widths and the use of other cutting methods are substantially reduced.

Die zuvor hergeleitete und aufgezeigte Aufgabe wird für eine Untermessewelle für eine Rollenschneidmaschine zum Längsschneiden von Folien und Bändern in Streifen mit mindestens einem Untermesser dadurch gelöst, daß die Untermesser als beidseitige Schneidkanten an den Federn einer Nut-Feder-Teilung der Untermesserwelle ausgebildet sind, wobei die Schneidkanten einen Schneidewinkel von etwa 3° Grad und die Nuten eine Breite von 0,8 bis 2 mm aufweisen, so dass die Untertnesserwelle sowohl für das Scherenschnittverfahren als auch für das Rasierklingenschnittverfahren verwendbar ist. Dadurch, daß auf der Untermesserwelle Untermesser derart angeordnet sind, daß sie eine flexible Wahl der Breite der zuzuschneidenden Streifen zulassen, ist gewährleistet, daß eine Umstellung der Rollenschneidmaschine auf geänderte Schnittbreiten ohne Ausfallzeiten für Umbauten an der Untermesserwelle vorgenommen werden können. Es müssen lediglich die wesentlich einfacher zu handhabenden Obermesser relativ zu den, der geänderten Schnittbreite zuzuordnenden untermessern geeignet positioniert werden, um die nächste Schneidpartie mit den gewünschten geänderten Schnittbreiten herzustellen. Durch die erheblich reduzierten Rüstzeiten ergibt sich eine wesentlich höhere Ausnutzung der Maschinenlaufzeit, was wiederum zu deutlich reduzierten Kosten für den Schneidvorgang führt.The previously derived and indicated object is achieved for a Untermessewelle for a slitter for slitting films and tapes in strips with at least one lower blade, characterized in that the lower blades are formed as two-sided cutting edges on the springs of a tongue and groove division of the lower blade shaft, said Cutting edges have a cutting angle of about 3 degrees and the grooves have a width of 0.8 to 2 mm, so that the Untertondernerwelle is useful for both the paper cutting method and for the razor blade cutting method. Characterized in that the lower blade shaft lower blade are arranged so that they allow a flexible choice of the width of zuzuschneidenden strips, it is ensured that a change of the slitter can be made to changed cutting widths without downtime for conversions to the lower blade shaft. It only need the much easier to handle upper blade relative to the, adapted to the changed cutting width lower blades are properly positioned to produce the next cutting section with the desired changed cutting widths. The significantly reduced set-up times result in a much higher utilization of the machine running time, which in turn leads to significantly reduced costs for the cutting process.

Der Abstand zwischen den auf einer erfindungsgemäßen Untermesserwelle angeordneten Untermesser läßt sich dadurch reduzieren, daß die Untermesser abwechselnd als Untermesser für linken und rechten Schnitt ausgebildet sind. Ein reduzierter Abstand der Untermesser gewährleistet eine flexiblere Anpassung an gewünschte Schnittbreiten.The distance between the arranged on a lower blade shaft according to the invention lower blade can be reduced by the fact that the lower blade are formed alternately as a lower blade for left and right section. A reduced distance of the lower blade ensures a more flexible adaptation to desired cutting widths.

Die abwechselnde Anordnung von Untermessern für linken und rechten Schnitt läßt sich besonders geeignet dadurch herstellen, daß die Untermesser als beidseitige Schneidkanten an den Federn einer Nut-Feder-Teilung der Untermesserwelle ausgebildet sind.The alternate arrangement of lower blades for left and right cuts can be particularly suitable in that the lower blade as a double-sided Cutting edges are formed on the springs of a tongue and groove division of the lower blade shaft.

Dadurch, daß gemäß einer weiteren Ausgestaltung der erfindungsgemäßen Untermesserwelle die Untermesserwelle eine Mehrzahl von Schneidbüchsen aufweist und die Schneidbüchsen jeweils eine Mehrzahl von Untermessern aufweisen, ist gewährleistet, daß bei einem Verschleiß der Untermesser in bestimmten Bereichen der Untermesserwelle nicht die gesamte Untermesserwelle ausgetauscht werden muß. Bei einer derart ausgestalteten Untermesserwelle können die Schneidbüchsen, die einen besonders hohen Verschleiß aufweisen ausgetauscht werden, während die keinen oder einen geringeren Verschleiß aufweisenden Schneidbüchsen weiter verwendet werden können.Characterized in that, according to a further embodiment of the lower blade shaft according to the invention, the lower blade shaft has a plurality of cutting bushings and the cutting bushings each having a plurality of lower blades, it is ensured that at a wear of the lower blade in certain areas of the lower blade shaft not the entire lower blade shaft must be replaced. In a lower blade shaft designed in this way, the cutting bushes, which have a particularly high degree of wear, can be exchanged, while the cutting bushes having no or less wear can continue to be used.

Um eine möglichst flexible Einstellung der Schnittbreiten zu gewährleisten ist es sinnvoll, daß die Untermesser in einem Abstand von etwa 0,5 bis 10 mm zueinander angeordnet sind. Besonders vorteilhaft ist die Anordnung (Teilung) der Schneidkanten in einem Abstand von etwa 0,8 bis 2 mm zueinander.In order to ensure the most flexible possible setting of the cutting widths, it makes sense that the lower blade are arranged at a distance of about 0.5 to 10 mm from each other. Particularly advantageous is the arrangement (division) of the cutting edges at a distance of about 0.8 to 2 mm from each other.

Insbesondere beim Schneiden von Aluminiumfolien ist es im Hinblick auf das mögliche Abdrücken des Untermesserwellenprofils auf die zu schneidende Aluminiumfolie sinnvoll, die Nutbreiten möglichst gering zu halten. Dabei hat sich eine Nutbreite im Bereich von 0,8 bis 2 mm als besonders geeignet im Hinblick auf ein geringes Abdrücken und im Hinblick auf das zur Verfügung stellen von genügend Raum zum Eintauchen eines Obermessers bewährt.In particular, when cutting aluminum foils, it is useful to keep the groove widths as low as possible in view of the possible forcing of the lower knife shaft profile on the aluminum foil to be cut. In this case, a groove width in the range of 0.8 to 2 mm has proven to be particularly suitable in terms of low pressure and in view of the provision of sufficient space for immersion of an upper blade.

Schließlich wird die oben hergeleitete und aufgezeigte Aufgabe durch eine Rollenschneidmaschine zum Längsteilen von Folien und Bändern in Streifen mit einer erfindungsgemäßen Untermesserwelle und mindestens zwei in die Untermesserwelle eintauchenden Obermessern gelöst.Finally, the above-derived and pointed out object is achieved by a slitter for longitudinal slitting of films and tapes in strips with a lower blade shaft according to the invention and at least two dipping into the lower blade shaft upper blades.

Es gibt nun eine Vielzahl von Möglichkeiten, die erfindungsgemäße Untermesserwelle und die erfindungsgemäße Rollenschneidmaschine vorteilhaft auszugestalten und weiterzubilden. Hierzu wird beispielsweise verwiesen einerseits auf die dem Patentanspruch 1 nachgeordneten Patentansprüche andererseits auf die Beschreibung eines bevorzugten Ausführungsbeispiels in Verbindung mit der Zeichnung. In der Zeichnung zeigt

Fig. 1
im Schnitt eine Schneidbüchse für ein Ausführungsbeispiel einer erfindungsgemäßen Untermesserwelle,
Fig. 2a), b)
das Zusammenwirken eines Ausführungsbeispiels einer erfindungsgemäßen Untermesserwelle mit einem als Rasierklinge oder Rundmesser ausgebildeten Obermesser und
Fig. 3
ein Ausführungsbeispiel einer erfindungsgemäßen Untermesserwelle mit angestellten Obermessern.
There are now a variety of ways, the lower blade shaft according to the invention and the roll cutting machine according to the invention advantageously to design and develop. For this purpose, for example, referenced on the one hand to the claims subordinate to claim 1 on the other hand to the description of a preferred embodiment in conjunction with the drawings. In the drawing shows
Fig. 1
in section a cutting bushing for an embodiment of a lower blade shaft according to the invention,
Fig. 2a), b)
the interaction of an embodiment of a lower blade shaft according to the invention with a designed as a razor blade or circular blade upper blade and
Fig. 3
An embodiment of a lower blade shaft according to the invention with employed upper blades.

Die in Fig. 1 dargestellte Schneidbüchse 1 einer erfindungsgemäßen Untermesserwelle besteht aus einem im Ausführungsbeispiel etwa 10 cm langen Hohlzylinder, auf dem auf der äußeren Zylinderfläche in einer Nut-Feder-Teilung 2 eine Vielzahl von Untermessern 3 angeordnet sind. Die Untermesser 3 sind dabei, wie aus Fig. 2a) und b) deutlich ersichtlich, als beidseitige Schneidkanten 4, 5 an den Federn 6 der Nut-Feder-Teilung 2 ausgebildet.The cutting bush 1 of a lower blade shaft according to the invention shown in Fig. 1 consists of an approximately 10 cm long hollow cylinder in the embodiment, on which on the outer cylindrical surface in a tongue and groove division 2 a plurality of lower blades 3 are arranged. The lower blade 3 are, as shown in Fig. 2a) and b) clearly visible as two-sided cutting edges 4, 5 formed on the springs 6 of the tongue and groove division 2.

Der Abstand zwischen den Schneidkanten 4, 5 beträgt bei dem dargestellten Ausführungsbeispiel über die Nuten 7 etwa 0,8 mm und über die Federn 6 etwa 1,2 mm.The distance between the cutting edges 4, 5 is in the illustrated embodiment about the grooves 7 about 0.8 mm and about the springs 6 about 1.2 mm.

Bei dem in Fig. 2a) dargestellten Ausführungsbeispiel ist ein Obermesser 8 als Obermesser eines Rasierklingenschnittsystems ausgebildet. Dementsprechend taucht eine Rasierklinge 9 innerhalb einer Nut 7 in die Untermesser 3 ein.In the embodiment shown in Fig. 2a), an upper blade 8 is formed as the upper blade of a razor blade cutting system. Accordingly, a razor blade 9 immersed within a groove 7 in the lower blade 3 a.

In Fig. 2b) ist das Eintauchen eines Rundmessers 10 als Obermesser in einem Scherenschnittsystem in die Untermesser 3 dargestellt. In Fig. 2b) ist weiter dargestellt, daß die Schneidkanten 4, 5 einen Schneidwinkel von etwa 3° aufweisen.In Fig. 2b) the immersion of a circular blade 10 is shown as a top blade in a scissors cutting system in the lower blade 3. In Fig. 2b) is further shown that the cutting edges 4, 5 have a cutting angle of about 3 °.

Die Federn 6 weisen bei dem in Fig. 2 dargestellten Ausführungsbeispiel einer erfindungsgemäßen Untermesserwelle eine Höhe von etwa 2 mm auf.The springs 6 have in the embodiment of a lower blade shaft according to the invention shown in Fig. 2 on a height of about 2 mm.

In Fig. 3 der Zeichnung ist ein in eine nicht im einzelnen dargestellte Rollenschneidmaschine eingebautes Ausführungsbeispiel einer erfindungsgemäßen Untermesserwelle 11 dargestellt. In drei der etwa eintausendfünfhundert auf der Untermesserwelle 11 angeordneten Untermesser tauchen 3 Obermesser 8 im Rasierklingenschnittsystem 1 ein. Die Untermesser 8 werden dabei mit Hilfe von Obermesseranstellvorrichtungen 12 geführt.In Fig. 3 of the drawing, a built-in a not shown in detail slitter embodiment of a lower blade shaft 11 according to the invention is shown. In three of the approximately one thousand five hundred arranged on the lower blade shaft 11 lower blade dive 3 upper blade 8 in the razor blade cutting system 1 a. The lower blades 8 are guided with the help of Obermesseranstellvorrichtungen 12.

Aus Fig. 3 ist besonders deutlich ersichtlich, daß in dem über den Abstand zwischen den Schneidkanten vorgegebenen Rastermaß jede beliebige Schnittbreite durch einfaches Verschieben der Obermesseranstellvorrichtungen 12 gegenüber einer erfindungsgemäßen Untermesserwelle 11 eingestellt werden können.From Fig. 3 is particularly clear that in the predetermined over the distance between the cutting edges grid any cutting width can be adjusted by simply moving the Obermesseranstellvorrichtungen 12 against a lower blade shaft 11 according to the invention.

Claims (4)

  1. A bottom knife shaft for a slitting machine for the lengthwise cutting of foils and bands into strips with at least one bottom knife (3), where
    the bottom knife shaft has a number of bottom knives (3) exceeding the number of cuts, the bottom knives (3) are located at essentially regular intervals on the bottom knife shaft, the distances between the bottom knives (3) are selected so as to allow a flexible choice of the width of the strips, and the bottom knife shaft has a number of multiple knife blocks (1), where the multiple knife blocks (1) in each case have a number of bottom knives (3),
    characterised in that the bottom knives (3) are configured as double-sided cutting edges (4, 5) on the lands (6) of a groove-land spacing (2) of the bottom knife shaft, where the cutting edges (4, 5) have a cutting angle of approximately 3° degrees and the grooves (7) have a width of 0.8 to 2 mm, so that the bottom knife shaft can be used for the shear cutting method and for the razor blade cutting method.
  2. The bottom knife shaft according to Claim 1,
    characterised in that the bottom knives (3) are located at a distance of approximately 0.5 to 10 mm apart from each other.
  3. The bottom knife shaft according to Claim 2,
    characterised in that the bottom knives (3) are located at a distance of approximately 1 to 2 mm apart from each other.
  4. A slitting machine for the lengthwise cutting of foils and bands in strips with a bottom knife shaft (11) according to one of the claims 1 to 3, and at least two upper knives (8) that engage with the bottom knife shaft (11).
EP02004593A 2001-03-08 2002-02-28 Lower blade shaft for a rotary slitting machine Expired - Lifetime EP1238935B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10111112A DE10111112B4 (en) 2001-03-08 2001-03-08 Underblade shaft for a slitter-winder
DE10111112 2001-03-08

Publications (3)

Publication Number Publication Date
EP1238935A2 EP1238935A2 (en) 2002-09-11
EP1238935A3 EP1238935A3 (en) 2003-10-15
EP1238935B1 true EP1238935B1 (en) 2006-05-03

Family

ID=7676705

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02004593A Expired - Lifetime EP1238935B1 (en) 2001-03-08 2002-02-28 Lower blade shaft for a rotary slitting machine

Country Status (7)

Country Link
US (1) US20020184986A1 (en)
EP (1) EP1238935B1 (en)
AT (1) ATE325071T1 (en)
DE (2) DE10111112B4 (en)
DK (1) DK1238935T3 (en)
ES (1) ES2262718T3 (en)
NO (1) NO327081B1 (en)

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DE10349890B4 (en) * 2003-10-25 2007-03-15 Koenig & Bauer Ag Device for longitudinal cutting of a web
EP1908588B1 (en) 2004-05-04 2012-08-01 Koenig & Bauer AG Rotary printing machine with a printing unit having a plate cylinder
DE102004033920B4 (en) 2004-05-04 2006-11-02 Koenig & Bauer Ag Printing form of a printing machine and web-fed rotary printing press
DE102004033923A1 (en) 2004-05-04 2005-12-01 Koenig & Bauer Ag Web-fed rotary press for printing has longitudinal cutting device to cut web into three partial webs
DE102004033912B4 (en) 2004-05-04 2006-11-02 Koenig & Bauer Ag Rotary press
US7721646B2 (en) 2004-05-04 2010-05-25 Koenig & Bauer Aktiengesellschaft Offset printing groups of a printing press for newspaper printing and a web-fed rotary printing press
WO2006000527A1 (en) 2004-06-23 2006-01-05 Koenig & Bauer Aktiengesellschaft Web-fed printing machine having a turning bar
GB2451697A (en) * 2007-08-10 2009-02-11 Sigmala Ltd Adjustable slitting knife holder
DE102009025133B3 (en) 2009-06-17 2010-12-30 Heinrich Georg Gmbh Maschinenfabrik Device for separating strip strips of a longitudinally divided strip, in particular a metal strip
SI3233396T1 (en) * 2014-12-17 2019-06-28 Kampf Schneid- Und Wickeltechnik Gmbh & Co. Kg Cutting roller for roller cutting machines
CN109051969A (en) * 2018-09-18 2018-12-21 天津广大纸业股份有限公司 A kind of electrocardiograph paper separate winder for capableing of cutting edge
JP7297627B2 (en) * 2019-02-12 2023-06-26 デクセリアルズ株式会社 Blade and method of manufacturing the blade

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Also Published As

Publication number Publication date
NO20021137L (en) 2002-09-09
ATE325071T1 (en) 2006-06-15
DE50206614D1 (en) 2006-06-08
EP1238935A2 (en) 2002-09-11
DE10111112A1 (en) 2002-10-02
NO327081B1 (en) 2009-04-20
NO20021137D0 (en) 2002-03-07
DE10111112B4 (en) 2005-12-22
ES2262718T3 (en) 2006-12-01
DK1238935T3 (en) 2006-08-28
EP1238935A3 (en) 2003-10-15
US20020184986A1 (en) 2002-12-12

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