EP1808277B1 - Longitudinal cutting device for cutting a running web of material - Google Patents

Longitudinal cutting device for cutting a running web of material Download PDF

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Publication number
EP1808277B1
EP1808277B1 EP06124532A EP06124532A EP1808277B1 EP 1808277 B1 EP1808277 B1 EP 1808277B1 EP 06124532 A EP06124532 A EP 06124532A EP 06124532 A EP06124532 A EP 06124532A EP 1808277 B1 EP1808277 B1 EP 1808277B1
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EP
European Patent Office
Prior art keywords
profile
knife
cutting device
guides
material web
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Expired - Fee Related
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EP06124532A
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German (de)
French (fr)
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EP1808277A1 (en
Inventor
Hermann Albert Stitz
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Voith Patent GmbH
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Voith Patent GmbH
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    • 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
    • B26D7/26—Means for mounting or adjusting the cutting member; Means for adjusting the stroke of the cutting member
    • B26D7/2614—Means for mounting the cutting member
    • B26D7/2621—Means for mounting the cutting member for circular cutters
    • 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
    • B26D1/01—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 involving a cutting member which does not travel with the work
    • B26D1/12—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 involving a cutting member which does not travel with the work having a cutting member moving about an axis
    • B26D1/14—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 involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter
    • B26D1/24—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 involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter coacting with another disc cutter
    • B26D1/245—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 involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter coacting with another disc cutter for thin material, e.g. for sheets, strips or the like
    • 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
    • B26D7/26—Means for mounting or adjusting the cutting member; Means for adjusting the stroke of the cutting member
    • B26D7/2628—Means for adjusting the position of the cutting member
    • B26D7/2635—Means for adjusting the position of the cutting member for circular cutters

Definitions

  • the invention relates to a longitudinal cutting device for cutting a moving material web, in particular a paper or board web, with at least one, a circular knife carrying carriage, which is preferably mounted on a transversely extending to the direction of the moving material web knife carrier by means of guides and having a knife holder in which the circular blade having a rotation axis is rotatably mounted.
  • the invention will be described below generally with reference to a material web. However, it is also applicable to other webs, such as sheets of paper, cardboard, plastic or metal foil, accordingly.
  • Such a longitudinal cutting device is for example from the German utility model DE 298 12 753 U1 from which the features of the preamble of claim 1 are known.
  • the known longitudinal cutting devices for moving material webs usually contain a plurality of circular knives arranged in pairs, wherein in each case a pair of circular knives severes the moving material web for division into individual webs in the longitudinal direction.
  • Such slitters are usually components of winders or cross-cutting machines that produce individual narrower bobbins from a wide and moving material web or by additional cross-cutting individual sheets.
  • the pairs of circular knives can be positioned transversely to the running direction of the moving material web.
  • the circular knives each consist of a current material web during cutting supporting pot knife and a dipping into the moving material tip knife whose cutting edges must be positioned exactly to each other in the desired cutting position.
  • the pot knife used as a lower blade is driven, while the tip blade is freely rotatably mounted as a top blade ( DE 34 19 843 C2 ).
  • a quick release device for blade positioning on a transverse to the web guide wherein the guide consists of standing in mutual effect dependency guide surfaces and at least a part of the guide, in particular one of the effective guide surfaces, above the axes of rotation of the circular blade. Due to this type of storage, there are not inconsiderable oscillations, which adversely affect both the quality of cut and the life of the individual circular blade. A poor cut quality, which preferably occurs due to unclean cuts, in turn promotes the formation of web breaks and increased dust formation. Both consequences have a negative effect on the runnability of the slitter.
  • the invention is therefore the object of a longitudinal cutting device of the type mentioned in such a way that both the quality of cut and the life of the circular blade is increased.
  • the inventive storage of the circular blade rotatably stored slide is thus characterized by small lever arms between storage and possible force application and thus by the smallest possible moments, in particular torsional and bending moments from.
  • the formation of vibrations which adversely affect both the quality of cut and the life of the individual circular blade in the manner already described, significantly reduced.
  • the knife crosshead is designed as an open, an inner region exhibiting the running material web, that the carriage rotatably supporting the circular knife is arranged at least predominantly in the inner region of the profiled crossbar formed as profile and that the Sled bearing guides are provided in the area.
  • This embodiment is characterized by a mechanically rigid connection of the circular blade to its storage.
  • the design of the knife traverse in the form of an open and an inner profile having profile provides maximum stability and rigidity.
  • the profile forming the knife cross-piece has a basic structure which is at least similar to a U-profile.
  • This basic structure offers maximum mechanical stability in terms of size and design and thus substantially supports the achievement of an improved cut quality and an increased runtime of the circular knife.
  • the profile forming the knife crossbar can also be another Basic structure, such as a circle segment, a semicircle or the like, have.
  • the profile forming the knife cross-section preferably has a profile wall thickness in the range from 3 to 30 mm, preferably from 5 to 20 mm.
  • the resulting from the profile wall thickness stability and rigidity allows even at high production speeds, the cutting of a high basis weight having web with increased cut quality and increased life of the circular blade.
  • the guides can be arranged on the knife cross-section facing away from the inner region of the profile, they can be arranged on the knife cross-section facing the inner region of the profile or they can ultimately at least reach the inner region of the profile side by side or facing away to be arranged on the knife crossmember.
  • the carriage which rotatably supports the circular blade is arranged completely or predominantly in the inner region of the knife cross-section designed as a profile. This in turn results in the already mentioned advantages in terms of stability and rigidity. In the end, this results in an improved cut quality and an increased runtime of the circular knife.
  • the guides are designed as plain bearing guides, each of which has at least one guide base profile extending transversely to the running direction of the moving material web and attached directly or indirectly to the knife traverse and at least one directly or indirectly attached to the carriage and with the guide base profile having geometrically connected guide head.
  • Such a design of the guides is characterized in particular by good leadership properties, such as force flows and types of movement.
  • the sole FIGURE shows a schematic side view of a possible embodiment of a longitudinal cutting device 1 according to the invention for cutting a running material web 2.
  • the running material web 2 may be a web of paper, cardboard, plastic film, metal foil or the like.
  • such a longitudinal cutting device 1 is a component of a wind-up or cross-cutting machine which produces individual narrower winding rolls from a wide and moving material web or individual sheets by additional transverse cutting.
  • a longitudinal cutting device 1 can be installed in a roll cutting machine.
  • the illustrated longitudinal cutting device 1 for cutting the moving material web 2 comprises a circular blade pair 3, which is the current Material web 2 divided for division into individual tracks in the longitudinal direction.
  • the circular blade pair 3 consists of a current material web 2 when cutting supporting lower blade 4 and a dipping into the running material web 2 upper blade 5 exist.
  • a bottom knife 4 pot knife and as a top knife 5 disc-shaped tip knife used are described.
  • the longitudinal cutting device 1 can of course also have only one circular blade for cutting the moving material web.
  • Each circular blade 4, 5 is arranged on a supporting carriage 6, 7 which is mounted in each case on a transverse to the running direction (L) of the moving material web 2 extending blade traverse 8, 9 by means of guides 10, 11 and each of a knife holder 12, 13, on which the respective, a rotation axis A4, A5 having circular blade 4, 5 is rotatably mounted.
  • the adjustable mounting of the carriages 6, 7 ensures that each circular blade 4, 5 can be positioned transversely to the running direction L (arrow) of the material web 2 to be divided in order to set the required format width.
  • each upper blade 5 in the direction of its axis of rotation A5 against the associated lower blade 4 can be adjusted so that the two cutting edges can be aligned exactly relative to each other.
  • each upper blade 5 can be brought into an inactive position, if it is not needed for longitudinal cutting of the running material web 2.
  • the guides 10, 11 supporting the associated carriages 6, 7 are provided in a region B which is delimited by parallel lines P4, P5 parallel to the material web 2 by the axes of rotation A4, A5 of the circular blades 4, 5 and the moving material web 2 walk.
  • the parallels P4, P5 define above and below the area B, which is provided with a hatching for better clarity.
  • the respective blade crossbar 8, 9 is formed as a running material web 2 facing, open and an inner region 16, 17 exhibiting profile 14, 15, which has a U-profile at least similar basic structure 18, 19 and a profile wall thickness D14, D15 in Range of 3 to 30 mm, preferably from 5 to 20 mm.
  • the profile 14 of the lower blade 4 is down, opened to the running material web 2, while the profile 15 of the upper blade 5 is open to the top, to the moving web 2 out.
  • the two profiles 14, 15 need not have the same shape or the same dimensions; depending on the application, these properties may be different.
  • the individual, the respective circular blade 4, 5 rotatably supporting carriages 6, 7 almost completely in the respective inner region 16, 17 of the profile 14, 15 formed as a knife beam 8, 9 are arranged.
  • the respective circular blade 4, 5 may also be arranged predominantly in the respective inner region 16, 17.
  • the guides 10 for the lower blade 4 are arranged facing away from the inner region 16 of the profile 14 on the knife cross member 8, so that the carriage 6 which rotatably supports the lower knife 4 is arranged completely in the inner region 16 of the knife crosspiece 8.
  • the guides 11 for the upper blade 5 are arranged facing the inner region 17 of the profile 15 on the knife crosspiece 9, so that the carriage 7 which rotatably supports the upper knife 5 is arranged predominantly in the inner region 17 of the knife crosspiece 9.
  • the guides 10, 11 are formed as sliding bearing guides 20, each extending transversely to the direction L (arrow) of the moving material web 2 extending and directly or indirectly attached to the corresponding blade crossbar 8, 9 Guide basic profile 21 and one on the corresponding carriage 6, 7 directly or indirectly attached and with the guide base profile 21 geometrically connected guide head 22 have.
  • the individual slide bearing guides 20 can be designed differently in terms of design, shape and dimensions.
  • the illustrated longitudinal cutting device 1 can also be used in a slitter-cutting machine which is well-known to the person skilled in the art and has at least one longitudinal cutting device for cutting a running material web.
  • a longitudinal cutting device of the type mentioned is further developed by the invention that both the quality of cut and the duration of the at least one circular blade is increased.

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  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Milling Processes (AREA)
  • Nonmetal Cutting Devices (AREA)

Abstract

The longitudinal cutting device has at least one supporting carriage (6,7) with transverse crossbeam (8,9) extending along the direction of movement (L) of the continuous material web (2) and storing the guidance elements (10,11) in the range (B) of material web. The parallels (P4,P5) are limited by axis of rotation (A4,A5) of circular cutters (4,5) and the continuous material web.

Description

Die Erfindung betrifft eine Längsschneideeinrichtung zum Schneiden einer laufenden Materialbahn, insbesondere einer Papier- oder Kartonbahn, mit zumindest einem, ein Kreismesser tragenden Schlitten, der an einer sich quer zur Laufrichtung der laufenden Materialbahn erstreckenden Messertraverse mittels Führungen vorzugsweise verstellbar gelagert ist und der einen Messerhalter aufweist, an dem das eine Drehachse aufweisende Kreismesser drehbar gelagert ist.The invention relates to a longitudinal cutting device for cutting a moving material web, in particular a paper or board web, with at least one, a circular knife carrying carriage, which is preferably mounted on a transversely extending to the direction of the moving material web knife carrier by means of guides and having a knife holder in which the circular blade having a rotation axis is rotatably mounted.

Die Erfindung wird im Folgenden allgemein anhand einer Materialbahn beschrieben. Sie ist jedoch auch bei anderen Materialbahnen, wie beispielsweise Bahnen aus Papier, Karton, Kunststoff- oder Metallfolie, entsprechend anwendbar.The invention will be described below generally with reference to a material web. However, it is also applicable to other webs, such as sheets of paper, cardboard, plastic or metal foil, accordingly.

Eine derartige Längsschneideeinrichtung ist beispielsweise aus der deutschen Gebrauchsmusterschrift DE 298 12 753 U1 bekannt, aus den die Merkmale der Oberbegrifts des Anspruchs 1 bekannt sind.Such a longitudinal cutting device is for example from the German utility model DE 298 12 753 U1 from which the features of the preamble of claim 1 are known.

Die bekannten Längsschneideeinrichtungen für laufende Materialbahnen enthalten üblicherweise mehrere paarweise angeordnete Kreismesser, wobei jeweils ein Kreismesserpaar die laufende Materialbahn zur Aufteilung in Einzelbahnen in Längsrichtung durchtrennt. Derartige Längsschneideeinrichtungen sind im Regelfall Bestandteile von Aufwickel- oder Querschneidemaschinen, die aus einer breiten und laufenden Materialbahn einzelne schmalere Wickelrollen oder durch zusätzliches Querschneiden einzelne Bögen herstellen. Um verschiedene Bogen- oder Wickelrollenformate herstellen zu können, sind die Kreismesserpaare quer zur Laufrichtung der laufenden Materialbahn positionierbar.The known longitudinal cutting devices for moving material webs usually contain a plurality of circular knives arranged in pairs, wherein in each case a pair of circular knives severes the moving material web for division into individual webs in the longitudinal direction. Such slitters are usually components of winders or cross-cutting machines that produce individual narrower bobbins from a wide and moving material web or by additional cross-cutting individual sheets. In order to be able to produce different sheet or wound roll formats, the pairs of circular knives can be positioned transversely to the running direction of the moving material web.

In bekannter Weise bestehen die Kreismesser jeweils aus einem die laufende Materialbahn beim Schneiden abstützenden Topfmesser und einem in die laufende Materialbahn eintauchenden Spitzmesser, deren Schneidkanten exakt zueinander in der gewünschten Schnittposition positioniert werden müssen. Üblicherweise ist das als Untermesser eingesetzte Topfmesser angetrieben, während das Spitzmesser als Obermesser frei drehbar gelagert ist ( DE 34 19 843 C2 ).In a known manner, the circular knives each consist of a current material web during cutting supporting pot knife and a dipping into the moving material tip knife whose cutting edges must be positioned exactly to each other in the desired cutting position. Usually, the pot knife used as a lower blade is driven, while the tip blade is freely rotatably mounted as a top blade ( DE 34 19 843 C2 ).

Die das jeweilige Kreismesser über den entsprechenden Messerhalter tragende Schlitten sind auf ihrer den Materialbahnen nicht zugewandten Seiten an sich quer zu den Laufrichtungen der laufenden Materialbahnen erstreckenden Messertraversen gelagert. Aus DE 299 05 761 U1 ist beispielsweise eine Schnellspannvorrichtung zur Messerpositionierung auf einer quer zur Materialbahn verlaufenden Führung bekannt, wobei die Führung aus in gegenseitiger Wirkungsabhängigkeit stehenden Führungsflächen besteht und mindestens ein Teil der Führung, insbesondere eine der wirksamen Führungsflächen, oberhalb der Drehachsen der Kreismesser liegt. Aufgrund dieser Lagerungsart kommt es zu nicht unbeachtlichen Schwingungen, die sowohl die Schnittqualität als auch die Laufzeit des einzelnen Kreismessers negativ beeinflussen. Eine vorzugsweise durch unsaubere Schnitte in Erscheinung tretende schlechte Schnittqualität fördert wiederum das Entstehen von Bahnabrissen und einer erhöhten Staubbildung. Beide Folgenachteile wirken sich wiederum negativ auf die Runnability der Längsschneideeinrichtung auf.The carriages carrying the respective circular blade via the corresponding blade holder are mounted on their sides not facing the material webs at knife edges extending transversely to the running directions of the moving material webs. Out DE 299 05 761 U1 For example, a quick release device for blade positioning on a transverse to the web guide is known, wherein the guide consists of standing in mutual effect dependency guide surfaces and at least a part of the guide, in particular one of the effective guide surfaces, above the axes of rotation of the circular blade. Due to this type of storage, there are not inconsiderable oscillations, which adversely affect both the quality of cut and the life of the individual circular blade. A poor cut quality, which preferably occurs due to unclean cuts, in turn promotes the formation of web breaks and increased dust formation. Both consequences have a negative effect on the runnability of the slitter.

Der Erfindung liegt daher die Aufgabe zugrunde, eine Längsschneideeinrichtung der genannten Art derart weiterzubilden, dass sowohl die Schnittqualität als auch die Laufzeit des Kreismessers gesteigert wird.The invention is therefore the object of a longitudinal cutting device of the type mentioned in such a way that both the quality of cut and the life of the circular blade is increased.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, dass die den dazugehörigen Schlitten lagernden Führungen in einem Bereich vorgesehen sind, der durch Parallelen begrenzt wird, die parallel zu der Materialbahn durch die Drehachsen der Kreismesser und der laufenden Materialbahn gehen.This object is achieved in that the associated carriages overlapping guides are provided in a region which is bounded by parallel, which go parallel to the material web through the axes of rotation of the circular blade and the moving web.

Die erfindungsgemäße Aufgabe wird auf diese Weise vollkommen gelöst.The object of the invention is completely solved in this way.

Die erfindungsgemäße Lagerung des das Kreismesser drehbar lagernden Schlittens zeichnet sich also durch kleine Hebelarme zwischen Lagerung und möglichem Kraftangriff und somit durch möglichst kleine Momente, insbesondere Torsions- und Biegemomente, aus. Dadurch wird insbesondere das Entstehen von Schwingungen, die sowohl die Schnittqualität als auch die Laufzeit des einzelnen Kreismessers in bereits beschriebener Weise negativ beeinflussen, deutlich reduziert.The inventive storage of the circular blade rotatably stored slide is thus characterized by small lever arms between storage and possible force application and thus by the smallest possible moments, in particular torsional and bending moments from. As a result, in particular the formation of vibrations, which adversely affect both the quality of cut and the life of the individual circular blade in the manner already described, significantly reduced.

Vorteilhafte Ausgestaltungen ergeben sich aus den abhängigen Schutzansprüchen, der Beschreibung und der Zeichnung.Advantageous embodiments will be apparent from the dependent claims, the description and the drawings.

In einer bevorzugten praktischen Ausführungsform ist vorgesehen, dass die Messertraverse als ein der laufenden Materialbahn zugewandtes, offenes und einen Innenbereich aufweisendes Profil ausgebildet ist, dass der das Kreismesser drehbar lagernde Schlitten mindestens überwiegend in dem Innenbereich der als Profil ausgebildeten Messertraverse angeordnet ist und dass die den Schlitten lagernden Führungen in dem Bereich vorgesehen sind.In a preferred practical embodiment, it is provided that the knife crosshead is designed as an open, an inner region exhibiting the running material web, that the carriage rotatably supporting the circular knife is arranged at least predominantly in the inner region of the profiled crossbar formed as profile and that the Sled bearing guides are provided in the area.

Diese Ausführungsform zeichnet sich durch eine mechanisch steife Anbindung des Kreismessers an seine Lagerung aus. Die Ausgestaltung der Messertraverse in Form eines offenen und einen Innenbereich aufweisenden Profils erbringt ein Höchstmaß an Stabilität und Steifigkeit.This embodiment is characterized by a mechanically rigid connection of the circular blade to its storage. The design of the knife traverse in the form of an open and an inner profile having profile provides maximum stability and rigidity.

Eine weitere praktische Ausführungsform sieht vor, dass das die Messertraverse bildende Profil eine einem U-Profil zumindest ähnelnde Grundstruktur aufweist. Diese Grundstruktur bietet im Hinblick auf Größe und Ausbildung ein Höchstmaß an mechanischer Stabilität und unterstützt somit wesentlich die Erreichung einer verbesserten Schnittqualität und einer erhöhten Laufzeit des Kreismessers. Selbstverständlich kann das die Messertraverse bildende Profil auch eine andere Grundstruktur, beispielsweise die eines Kreissegments, eines Halbkreises oder dergleichen, aufweisen.A further practical embodiment provides that the profile forming the knife cross-piece has a basic structure which is at least similar to a U-profile. This basic structure offers maximum mechanical stability in terms of size and design and thus substantially supports the achievement of an improved cut quality and an increased runtime of the circular knife. Of course, the profile forming the knife crossbar can also be another Basic structure, such as a circle segment, a semicircle or the like, have.

Weiterhin weist das die Messertraverse bildende Profil bevorzugt eine Profil-Wanddicke im Bereich von 3 bis 30 mm, vorzugsweise von 5 bis 20 mm, auf. Die aus der Profil-Wanddicke resultierende Stabilität und Steifigkeit ermöglicht auch bei hohen Produktionsgeschwindigkeiten das Schneiden einer ein hohes Flächengewicht aufweisenden Materialbahn mit gesteigerter Schnittqualität und mit gesteigerter Laufzeit des Kreismessers.Furthermore, the profile forming the knife cross-section preferably has a profile wall thickness in the range from 3 to 30 mm, preferably from 5 to 20 mm. The resulting from the profile wall thickness stability and rigidity allows even at high production speeds, the cutting of a high basis weight having web with increased cut quality and increased life of the circular blade.

Hinsichtlich der Anordnung der Führungen an der Messertraverse sind mehrere bevorzugte Möglichkeiten gegeben: So können die Führungen dem Innenbereich des Profils abgewandt an der Messertraverse angeordnet sein, sie können dem Innenbereich des Profils zugewandt an der Messertraverse angeordnet sein oder sie können letztlich dem Innenbereich des Profils zumindest seitenweise zu- oder abgewandt an der Messertraverse angeordnet sein. Je nach Anordnung ist der das Kreismesser drehbar lagernde Schlitten vollständig oder überwiegend in dem Innenbereich der als Profil ausgebildeten Messertraverse angeordnet. Somit ergeben sich wiederum die bereits angeführten Vorteile hinsichtlich Stabilität und Steifigkeit. Letztendlich ergeben sich wiederum eine verbesserte Schnittqualität und eine erhöhte Laufzeit des Kreismessers.With regard to the arrangement of the guides on the knife traverse, there are several preferred options: the guides can be arranged on the knife cross-section facing away from the inner region of the profile, they can be arranged on the knife cross-section facing the inner region of the profile or they can ultimately at least reach the inner region of the profile side by side or facing away to be arranged on the knife crossmember. Depending on the arrangement, the carriage which rotatably supports the circular blade is arranged completely or predominantly in the inner region of the knife cross-section designed as a profile. This in turn results in the already mentioned advantages in terms of stability and rigidity. In the end, this results in an improved cut quality and an increased runtime of the circular knife.

In einer weiteren günstigen Ausführungsform ist vorgesehen, dass die Führungen als Gleitlagerführungen ausgebildet sind, die jeweils mindestens ein sich quer zur Laufrichtung der laufenden Materialbahn erstreckendes und an der Messertraverse unmittelbar oder mittelbar angebrachtes Führungsgrundprofil und wenigstens einen am Schlitten unmittelbar oder mittelbar angebrachten und mit dem Führungsgrundprofil geometrisch verbundenen Führungskopf aufweisen. Eine derartige Ausgestaltung der Führungen zeichnet sich insbesondere durch gute Führungseigenschaften, wie beispielsweise Kraftflüsse und Bewegungsarten, aus.In a further advantageous embodiment, it is provided that the guides are designed as plain bearing guides, each of which has at least one guide base profile extending transversely to the running direction of the moving material web and attached directly or indirectly to the knife traverse and at least one directly or indirectly attached to the carriage and with the guide base profile having geometrically connected guide head. Such a design of the guides is characterized in particular by good leadership properties, such as force flows and types of movement.

Die erfindungsgemäße Lagerung des Kreismessers eignet sich in hervorragender Weise zur Verwendung

  • in einer Längsschneideeinrichtung zum Schneiden einer laufenden Materialbahn, insbesondere einer Papier- oder Kartonbahn, die ein Messerpaar aufweist, das ein die laufende Materialbahn beim Schneiden abstützendes Kreismesser und ein in die laufende Materialbahn eintauchendes Kreismesser umfasst, oder
  • in einer Rollenschneidmaschine mit mindestens einer Längsschneideeinrichtung zum Schneiden einer laufenden Materialbahn, insbesondere einer Papier- oder Kartonbahn, die ein Messerpaar aufweist, das ein die laufende Materialbahn beim Schneiden abstützendes Kreismesser und ein in die laufende Materialbahn eintauchendes Kreismesser umfasst.
The inventive storage of the circular blade is excellent for use
  • in a longitudinal cutting device for cutting a moving material web, in particular a paper or board web, which has a pair of knives comprising a circular blade supporting the moving web of material during cutting and a circular blade dipping into the moving web of material, or
  • in a slitter-winder with at least one longitudinal cutting device for cutting a moving material web, in particular a paper or board web, which comprises a pair of knives comprising a circular blade supporting the moving web of material during cutting and a circular blade dipping into the moving web of material.

Weitere Merkmale und Vorteile der Erfindung ergeben sich aus der nachfolgenden Beschreibung bevorzugter Ausführungsbeispiele unter Bezugnahme auf die Zeichnung.Further features and advantages of the invention will become apparent from the following description of preferred embodiments with reference to the drawings.

Es zeigt die einzige Figur eine schematische Seitenansicht einer möglichen Ausführungsform einer erfindungsgemäßen Längsschneideeinrichtung 1 zum Schneiden einer laufenden Materialbahn 2. Bei der laufenden Materialbahn 2 kann es sich um eine Bahn aus Papier, Karton, Kunststofffolie, Metallfolie oder dergleichen handeln.The sole FIGURE shows a schematic side view of a possible embodiment of a longitudinal cutting device 1 according to the invention for cutting a running material web 2. The running material web 2 may be a web of paper, cardboard, plastic film, metal foil or the like.

Eine derartige Längsschneideeinrichtung 1 ist im Regelfall ein Bestandteil einer Aufwickel- oder Querschneidemaschine, die aus einer breiten und laufenden Materialbahn einzelne schmalere Wickelrollen oder durch zusätzliches Querschneiden einzelne Bögen herstellt. So kann sie beispielsweise in einer Rollenschneidemaschine eingebaut sein.As a rule, such a longitudinal cutting device 1 is a component of a wind-up or cross-cutting machine which produces individual narrower winding rolls from a wide and moving material web or individual sheets by additional transverse cutting. For example, it can be installed in a roll cutting machine.

Die dargestellte Längsschneideeinrichtung 1 zum Schneiden der laufenden Materialbahn 2 umfasst ein Kreismesserpaar 3, welches die laufende Materialbahn 2 zur Aufteilung in Einzelbahnen in Längsrichtung durchtrennt. Das Kreismesserpaar 3 besteht aus einem die laufende Materialbahn 2 beim Schneiden abstützenden Untermesser 4 und einem in die laufende Materialbahn 2 eintauchenden Obermesser 5 bestehen. Bevorzugt werden als Untermesser 4 Topfmesser und als Obermesser 5 scheibenförmige Spitzmesser verwendet, wie sie beispielsweise in der deutschen Patentschrift DE 34 19 843 C2 beschrieben sind.The illustrated longitudinal cutting device 1 for cutting the moving material web 2 comprises a circular blade pair 3, which is the current Material web 2 divided for division into individual tracks in the longitudinal direction. The circular blade pair 3 consists of a current material web 2 when cutting supporting lower blade 4 and a dipping into the running material web 2 upper blade 5 exist. Preferably, as a bottom knife 4 pot knife and as a top knife 5 disc-shaped tip knife used, as described for example in the German patent DE 34 19 843 C2 are described.

Der Vollständigkeit halber sei erwähnt, dass die Längsschneideeinrichtung 1 selbstverständlich auch nur ein Kreismesser zum Schneiden der laufenden Materialbahn aufweisen kann.For the sake of completeness it should be mentioned that the longitudinal cutting device 1 can of course also have only one circular blade for cutting the moving material web.

Jedes Kreismesser 4, 5 ist an einem tragenden Schlitten 6, 7 angeordnet, der jeweils an einer sich quer zur Laufrichtung (L) der laufenden Materialbahn 2 erstreckenden Messertraverse 8, 9 mittels Führungen 10, 11 verstellbar gelagert ist und der jeweils einen Messerhalter 12, 13 aufweist, an dem das jeweilige, eine Drehachse A4, A5 aufweisende Kreismesser 4, 5 drehbar gelagert ist. Die verstellbare Lagerung der Schlitten 6, 7 gewährleistet, dass jedes Kreismesser 4, 5 zur Einstellung der erforderlichen Formatbreite quer zur Laufrichtung L (Pfeil) der zu teilenden Materialbahn 2 positionierbar ist. Zusätzlich ist jedes Obermesser 5 in Richtung seiner Drehachse A5 gegen das zugeordnete Untermesser 4 anstellbar, damit die beiden Schneidkanten exakt relativ zueinander ausgerichtet werden können. Weiterhin ist jedes Obermesser 5 in eine inaktive Position bringbar, falls es nicht zum Längsschneiden der laufenden Materialbahn 2 benötigt wird.Each circular blade 4, 5 is arranged on a supporting carriage 6, 7 which is mounted in each case on a transverse to the running direction (L) of the moving material web 2 extending blade traverse 8, 9 by means of guides 10, 11 and each of a knife holder 12, 13, on which the respective, a rotation axis A4, A5 having circular blade 4, 5 is rotatably mounted. The adjustable mounting of the carriages 6, 7 ensures that each circular blade 4, 5 can be positioned transversely to the running direction L (arrow) of the material web 2 to be divided in order to set the required format width. In addition, each upper blade 5 in the direction of its axis of rotation A5 against the associated lower blade 4 can be adjusted so that the two cutting edges can be aligned exactly relative to each other. Furthermore, each upper blade 5 can be brought into an inactive position, if it is not needed for longitudinal cutting of the running material web 2.

Die den dazugehörigen Schlitten 6, 7 lagernden Führungen 10, 11 sind in einem Bereich B vorgesehen, der durch Parallelen P4, P5 begrenzt wird, die parallel zu der Materialbahn 2 durch die Drehachsen A4, A5 der Kreismesser 4, 5 und der laufenden Materialbahn 2 gehen. Die Parallelen P4, P5 begrenzen im Grunde ober- und unterseitig den Bereich B, der zur besseren Verdeutlichung mit einer Schraffur versehen ist.The guides 10, 11 supporting the associated carriages 6, 7 are provided in a region B which is delimited by parallel lines P4, P5 parallel to the material web 2 by the axes of rotation A4, A5 of the circular blades 4, 5 and the moving material web 2 walk. Basically, the parallels P4, P5 define above and below the area B, which is provided with a hatching for better clarity.

Die jeweilige Messertraverse 8, 9 ist als ein der laufenden Materialbahn 2 zugewandtes, offenes und einen Innenbereich 16, 17 aufweisendes Profil 14, 15 ausgebildet, das eine einem U-Profil zumindest ähnelnde Grundstruktur 18, 19 und eine Profil-Wanddicke D14, D15 im Bereich von 3 bis 30 mm, vorzugsweise von 5 bis 20 mm, aufweist. Das Profil 14 des Untermessers 4 ist nach unten, zur laufenden Materialbahn 2 hin geöffnet, während das Profil 15 des Obermessers 5 nach oben, zur laufenden Materialbahn 2 hin geöffnet ist. Die beiden Profile 14, 15 müssen weder die gleiche Form noch die gleichen Dimensionen aufweisen; je nach Anwendungsfall können diese Eigenschaften verschieden sein.The respective blade crossbar 8, 9 is formed as a running material web 2 facing, open and an inner region 16, 17 exhibiting profile 14, 15, which has a U-profile at least similar basic structure 18, 19 and a profile wall thickness D14, D15 in Range of 3 to 30 mm, preferably from 5 to 20 mm. The profile 14 of the lower blade 4 is down, opened to the running material web 2, while the profile 15 of the upper blade 5 is open to the top, to the moving web 2 out. The two profiles 14, 15 need not have the same shape or the same dimensions; depending on the application, these properties may be different.

Weiterhin ist der einzelne, das jeweilige Kreismesser 4, 5 drehbar lagernde Schlitten 6, 7 nahezu vollständig in dem jeweiligen Innenbereich 16, 17 der als Profil 14, 15 ausgebildeten Messertraverse 8, 9 angeordnet. Selbstverständlich kann das jeweilige Kreismesser 4, 5 auch nur überwiegend in dem jeweiligen Innenbereich 16, 17 angeordnet sein.Furthermore, the individual, the respective circular blade 4, 5 rotatably supporting carriages 6, 7 almost completely in the respective inner region 16, 17 of the profile 14, 15 formed as a knife beam 8, 9 are arranged. Of course, the respective circular blade 4, 5 may also be arranged predominantly in the respective inner region 16, 17.

Ferner sind die den jeweiligen Schlitten 6, 7 lagernden Führungen 10, 11 in dem genannten Bereich B vorgesehen.Furthermore, the guides 10, 11 supporting the respective carriages 6, 7 are provided in said area B.

Die Führungen 10 für das Untermesser 4 sind dem Innenbereich 16 des Profils 14 abgewandt an der Messertraverse 8 angeordnet, so dass der das Untermesser 4 drehbar lagernde Schlitten 6 vollständig in dem Innenbereich 16 der Messertraverse 8 angeordnet ist. Hingegen sind die Führungen 11 für das Obermesser 5 dem Innenbereich 17 des Profils 15 zugewandt an der Messertraverse 9 angeordnet, so dass der das Obermesser 5 drehbar lagernde Schlitten 7 nur überwiegend in dem Innenbereich 17 der Messertraverse 9 angeordnet ist.The guides 10 for the lower blade 4 are arranged facing away from the inner region 16 of the profile 14 on the knife cross member 8, so that the carriage 6 which rotatably supports the lower knife 4 is arranged completely in the inner region 16 of the knife crosspiece 8. By contrast, the guides 11 for the upper blade 5 are arranged facing the inner region 17 of the profile 15 on the knife crosspiece 9, so that the carriage 7 which rotatably supports the upper knife 5 is arranged predominantly in the inner region 17 of the knife crosspiece 9.

Die Führungen 10, 11 sind als Gleitlagerführungen 20 ausgebildet, die jeweils sich quer zur Laufrichtung L (Pfeil) der laufenden Materialbahn 2 erstreckendes und an der entsprechenden Messertraverse 8, 9 unmittelbar oder mittelbar angebrachtes Führungsgrundprofil 21 und einen am entsprechenden Schlitten 6, 7 unmittelbar oder mittelbar angebrachten und mit dem Führungsgrundprofil 21 geometrisch verbundenen Führungskopf 22 aufweisen. Selbstverständlich können die einzelnen Gleitlagerführungen 20 unterschiedlich hinsichtlich Aufbau, Form und Dimensionierung ausgeführt sein.The guides 10, 11 are formed as sliding bearing guides 20, each extending transversely to the direction L (arrow) of the moving material web 2 extending and directly or indirectly attached to the corresponding blade crossbar 8, 9 Guide basic profile 21 and one on the corresponding carriage 6, 7 directly or indirectly attached and with the guide base profile 21 geometrically connected guide head 22 have. Of course, the individual slide bearing guides 20 can be designed differently in terms of design, shape and dimensions.

Die dargestellte Längsschneideeinrichtung 1 kann auch in einer, dem Fachmann wohl bekannten Rollenschneidmaschine mit mindestens einer Längsschneideeinrichtung zum Schneiden einer laufenden Materialbahn ihre Verwendung finden.The illustrated longitudinal cutting device 1 can also be used in a slitter-cutting machine which is well-known to the person skilled in the art and has at least one longitudinal cutting device for cutting a running material web.

Zusammenfassend ist festzuhalten, dass durch die Erfindung eine Längsschneideeinrichtung der eingangs genannten Art derart weitergebildet wird, dass sowohl die Schnittqualität als auch die Laufzeit des mindestens einen Kreismessers gesteigert wird.In summary, it should be noted that a longitudinal cutting device of the type mentioned is further developed by the invention that both the quality of cut and the duration of the at least one circular blade is increased.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
LängsschneideeinrichtungSlitter
22
Materialbahnweb
33
KreismesserpaarPair of circular knives
44
Untermesser (Kreismesser)Bottom knife (circular knife)
55
Obermesser (Kreismesser)Upper knife (circular knife)
66
Schlittencarriage
77
Schlittencarriage
88th
Messertraverseknife Traverse
99
Messertraverseknife Traverse
1010
Führungguide
1111
Führungguide
1212
Messerhalterknife holder
1313
Messerhalterknife holder
1414
Profilprofile
1515
Profilprofile
1616
Innenbereichinterior
1717
Innenbereichinterior
1818
Grundstrukturbasic structure
1919
Grundstrukturbasic structure
2020
GleitlagerführungBearing Bush
2121
FührungsgrundprofilGuide base profile
2222
Führungskopfguide head
A4A4
Drehachseaxis of rotation
A5A5
Drehachseaxis of rotation
BB
BereichArea
D14D14
Profil-WanddickeProfile wall thickness
D15D15
Profil-WanddickeProfile wall thickness
LL
Laufrichtung (Pfeil)Running direction (arrow)
P4P4
Paralleleparallel
P5P5
Paralleleparallel

Claims (8)

  1. Longitudinal cutting device (1) for cutting a moving material web (2), in particular a paper or board web, having at least one carriage (6, 7) which carries a circular knife (4, 5) and is preferably adjustably mounted by means of guides (10, 11) on a knife cross-member (8, 9) extending transversely with respect to the running direction (L) of the moving material web (2), and which has a knife holder (12, 13), on which the circular knife (4, 5) having an axis of rotation (A4, A5) is mounted such that it can rotate,
    characterized in that
    the guides (10, 11) supporting the associated carriage (6, 7) are provided in a region (B) which is delimited by parallel lines (P4, P5) which run parallel to the material web (2) through the axis of rotation (A4, A5) of the circular knives (4, 5) and the moving material web (2).
  2. Longitudinal cutting device (1) according to Claim 1, characterized in that
    the knife cross-member (8, 9) is constructed as a profile (14, 15) which is open, faces the moving material web (2) and has an inner region (16, 17), in that the carriage (6, 7) supporting the circular knife (4, 5) so that it can rotate is at least predominantly arranged in the inner region (16, 17) of the knife cross-member (8, 9) formed as a profile (14, 15), and
    in that the guides (10, 11) supporting the carriage (6, 7) are provided in the region (B).
  3. Longitudinal cutting device (1) according to Claim 2,
    characterized in that
    the profile (14, 15) forming the knife cross-member (8, 9) has a basic structure (18, 19) at least resembling a U profile.
  4. Longitudinal cutting device (1) according to Claim 2 or 3,
    characterized in that
    the profile (14, 15) forming the knife cross-member (8, 9) has a profile wall thickness (D14, D15) in the range from 3 to 30 mm, preferably from 5 to 20 mm.
  5. Longitudinal cutting device (1) according to one of Claims 2 to 4,
    characterized in that
    the guides (10) are arranged on the knife cross-member (8) so as to face away from the inner region (16) of the profile (14), and
    in that the carriage (6) supporting the circular knife (4) such that it can rotate is arranged completely in the inner region (16) of the knife cross-member (8) formed as a profile (14).
  6. Longitudinal cutting device (1) according to one of Claims 2 to 4,
    characterized in that
    the guides (11) are arranged on the knife cross-member (9) so as to face the inner region (17) of the profile (15), and
    in that the carriage (7) supporting the circular knife (5) such that it can rotate is arranged predominantly in the inner region (17) of the knife cross-member (9) formed as a profile (15).
  7. Longitudinal cutting device (1) according to one of Claims 2 to 4,
    characterized in that
    the guides (10, 11) are arranged on the knife cross-member (8, 9) so that at least their sides face or face away from the inner region (16, 17) of the profile (14, 15), and in that the carriage (6, 7) supporting the circular knife (4, 5) such that it can rotate is predominantly arranged in the inner region (16, 17) of the knife cross-member (8, 9) formed as a profile (14, 15).
  8. Longitudinal cutting device (1) according to one of the preceding claims,
    characterized in that
    the guides (10, 11) are designed as sliding bearing guides, which in each case have at least one basic guide profile (21) extending transversely with respect to the running direction (L) of the moving material web (2) and fitted directly or indirectly to the knife cross-member (8, 9) and at least one guide head (22) fitted directly or indirectly to the carriage (6, 7) and connected geometrically to the basic guide profile (21).
EP06124532A 2006-01-14 2006-11-22 Longitudinal cutting device for cutting a running web of material Expired - Fee Related EP1808277B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202006000544U DE202006000544U1 (en) 2006-01-14 2006-01-14 Longitudinal cutting device for cutting a running material web

Publications (2)

Publication Number Publication Date
EP1808277A1 EP1808277A1 (en) 2007-07-18
EP1808277B1 true EP1808277B1 (en) 2011-06-29

Family

ID=36274314

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06124532A Expired - Fee Related EP1808277B1 (en) 2006-01-14 2006-11-22 Longitudinal cutting device for cutting a running web of material

Country Status (3)

Country Link
EP (1) EP1808277B1 (en)
AT (1) ATE514538T1 (en)
DE (1) DE202006000544U1 (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2716703C3 (en) * 1977-04-15 1980-10-16 Dienes Werke Fuer Maschinenteile Gmbh & Co Kg, 5063 Overath Crush knife holder with heating device
DE3419843C2 (en) 1984-05-26 1986-04-03 Jagenberg AG, 4000 Düsseldorf Longitudinal cutting device for web material, in particular paper and cardboard webs
DE3836502A1 (en) * 1988-10-26 1990-05-03 Bhs Bayerische Berg Device for pressing, in an axial direction, a cutting tool against the counter tool of a longitudinal cutting and/or corrugating machine, especially for corrugated cardboard
DE19810939A1 (en) 1998-03-13 1999-09-16 Jagenberg Papiertech Gmbh Longitudinal cutting device for moving material webs of paper or cardboard
US6155154A (en) 1999-03-20 2000-12-05 Hsu; Yuan-Chang Quick positioning device of a bank knife

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DE202006000544U1 (en) 2006-04-13
ATE514538T1 (en) 2011-07-15
EP1808277A1 (en) 2007-07-18

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