EP1207983B1 - Machine for crosscutting webs of material - Google Patents

Machine for crosscutting webs of material Download PDF

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Publication number
EP1207983B1
EP1207983B1 EP00958435A EP00958435A EP1207983B1 EP 1207983 B1 EP1207983 B1 EP 1207983B1 EP 00958435 A EP00958435 A EP 00958435A EP 00958435 A EP00958435 A EP 00958435A EP 1207983 B1 EP1207983 B1 EP 1207983B1
Authority
EP
European Patent Office
Prior art keywords
machine
frame
sides
cutter drums
lateral
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
EP00958435A
Other languages
German (de)
French (fr)
Other versions
EP1207983A1 (en
Inventor
Guido Spix
Albert Stitz
Karl Thievessen
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.)
Jagenberg Querschneider GmbH
Original Assignee
Jagenberg Querschneider GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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Publication of EP1207983A1 publication Critical patent/EP1207983A1/en
Application granted granted Critical
Publication of EP1207983B1 publication Critical patent/EP1207983B1/en
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Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • B26D7/265—Journals, bearings or supports for positioning rollers or cylinders relatively to each other
    • 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
    • B26D1/56—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 travels with the work otherwise than in the direction of the cut, i.e. flying cutter
    • B26D1/62—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 travels with the work otherwise than in the direction of the cut, i.e. flying cutter and is rotating about an axis parallel to the line of cut, e.g. mounted on a rotary cylinder
    • B26D1/626—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 travels with the work otherwise than in the direction of the cut, i.e. flying cutter and is rotating about an axis parallel to the line of cut, e.g. mounted on a rotary cylinder 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
    • B26D5/00—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D5/08—Means for actuating the cutting member to effect the cut
    • 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
    • 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
    • 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
    • Y10T83/465—Cutting motion of tool has component in direction of moving work
    • Y10T83/4766—Orbital motion of cutting blade
    • Y10T83/4795—Rotary tool
    • Y10T83/483—With cooperating rotary cutter or backup
    • 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
    • Y10T83/465—Cutting motion of tool has component in direction of moving work
    • Y10T83/4766—Orbital motion of cutting blade
    • Y10T83/4795—Rotary tool
    • Y10T83/483—With cooperating rotary cutter or backup
    • Y10T83/4838—With anvil backup

Definitions

  • the invention relates to a machine for cross cutting material webs, in particular Paper or cardboard webs, with a machine frame consisting of one each Sidewall on each long side of the machine, the sidewalls over crossbars are interconnected, and with two knife drums, with their axial Ends are each stored in the side walls.
  • Machines for cross-cutting paper or cardboard webs are known to contain two knife drums rotatably mounted one above the other in a machine frame, the knives of which cut a material web passing between them with a scissor cut.
  • the machine frame consists of side walls that are connected to each other by cross beams.
  • the machine frame is made in a welded steel structure.
  • the trusses are welded to the side walls.
  • the side walls usually consist of several side parts which are screwed or welded together.
  • a generic cross cutting machine constructed in this way is in the DE 198 03 522-A.
  • the invention has for its object a generic cross cutting machine to be improved in such a way that, with a structurally simplified design, it is able to Material webs with high cutting accuracy at a very high production speed to cut.
  • this object is achieved in that the side walls of the Machine frame are constructed from side parts, the corresponding side parts on both longitudinal sides with at least one connecting crossbar made of one piece are poured.
  • the machine frame can be simplified assemble as it is made up of fewer parts.
  • the machine frame is built of two frame parts, each frame part consisting of two by at least one Crossbar interconnected side parts.
  • the dividing line between two Side parts on each long side run through the two axes of rotation of the knife drums.
  • Machine frame from a main frame, which is below the storage of the knife drums has a horizontal step, and an additional frame placed on this step.
  • the side parts cast on bearing shells to accommodate the roller bearings in which the knife drums are stored. Since no screwed-on bearing flange is required, the Bearing openings can be arranged at a smaller distance from each other. this makes possible it to use larger rolling bearings in diameter and thus the knife drums to provide thicker shaft journals.
  • the pulling device therefore does not need its own Frame.
  • all of the wider machine elements are especially the gears of the knife drums and the lifting drive for one Feed roller, arranged on the outside of the side walls.
  • the cross-cutting machine shown schematically in sections in FIGS. 1 and 2 is used for cross cutting paper or cardboard webs in the production of Sheets of paper or cardboard. It works at web speeds of several 100 m / min, for example at 400 m / min and cuts sheets in format lengths of approx. 400 mm to approx. 200 mm.
  • Your working width i. e. the maximum width of the to be processed Bru, is in the range of one to several meters, in the exemplary embodiment at 2200 mm.
  • the desired format widths are cut by slitting the web a longitudinal cutting device, not shown, from which the web in front of Cross cutting is divided into individual webs of the desired width.
  • the cross cutting machine contains two knife drums 1, 2, which at their axial ends are rotatably mounted in side walls 3, 4 of the machine frame.
  • the two knife drums 1, 2 are arranged one above the other with axes of rotation aligned in parallel.
  • Each knife drum 1, 2 is equipped on its circumference with a knife 7, 8, the in a known manner helical in the axial direction over the working width are progressively attached. They are set up against each other so that they are continuous Cut the web with a scissor cut, the helical Arrangement of the knives 6, 7 enables a continuous path perpendicular to the Cut the web running direction.
  • Each knife drum 1, 2 consists of a roller-shaped base body on the End faces shaft journals 8, 9 are attached.
  • the shaft journals 8, 9 are via roller bearings 10 rotatably supported in the side walls 3, 4.
  • On each shaft journal 8, 9 is as Synchronization timing wheel each fixed a gear 11, 12, the gears 12 of the engage the upper knife drum 2 in the gears 11 of the lower knife drum 1.
  • the gears 11, 12 are each arranged on the outside of the side walls 3, 4.
  • At least on a shaft journal 8, 9 is an electric motor as a rotary drive for the Knife drums 1, 2 coupled to the outside of a side wall 3, 4 of the machine frame is flanged.
  • the machine frame built on a foundation 15 consists of the two Side walls 3, 4 and from cross members 16, 17, 18, 19, which the side walls 3, 4th connect with each other.
  • the side walls 3, 4 consist of side parts 21, 22 are constructed, the corresponding side parts 21 and 22 on both long sides with at least one, preferably all connecting cross members 16, 20 from one piece are poured.
  • the machine frame contains a main frame which is separated from the two side parts 21 and the connecting with the side parts 21 made of one piece cross members 16, 17, 18, 19th
  • a further side part 22 also forms with the side parts 22 a piece cast connecting cross member 20 an additional frame that on the Main frame can be screwed down.
  • Each side wall 3, 4 is divided so that the Partition line partially straight between two side parts 21, 22 through the axes of rotation of the two knife drums 1, 2 runs.
  • Each side part 21 of the main frame has below the storage of the knife drums 1, 2 on a horizontal step. To this Step, the respective side part 22 of the additional frame is put on.
  • each side part 21, 22 on the vertical edge on the the side parts are screwed together, two at a short distance above each other arranged semicircular recesses 24, 25.
  • Form when assembling the two recesses 24, 25 each have a circular bearing opening into which the bearing 10 a knife drum 1, 2 is used.
  • Bearing shell 26, 27 cast on, so that no additional bearing flange is required.
  • Two further semicircular bearing shells 28, which are also on the respective side part 21, 22 are cast on, form a fastening flange for a drive motor 14.
  • the two-part shape of the machine frame makes it possible to unscrew the Additional frame to open the storage of the knife drums and so a knife drum 1, 2 quick to install and remove.
  • a web pulling device is arranged, which consists of two pinch rollers 29, 30 consists.
  • the lower pinch roller 29 is driven by a drive motor via a belt drive 31 driven, which is fixed to the side wall 3. It is in with every axial end a bearing opening 31 of a side part 21 is mounted.
  • the upper feed roller 30 is free rotatably and lifted from the lower feed roller 29 so that a web can be inserted between the two rollers 29, 30.
  • the withdrawability of the upper Feed roller 30 is made possible by the fact that its lateral ends in ring-shaped bearing bushes is mounted, which can be rotated eccentrically on the inside of the respective side part 21 are attached.
  • the eccentric bearings are connected to a pneumatic piston-cylinder unit via lever, which as Lift drive for the upper feed roller 30 acts.
  • the pneumatic piston-cylinder unit and the levers engaging the bearing bush are on the outside of everyone Side wall 3, 4 stored.
  • the opening 32 in the side part 21 is indicated in FIG. 3, via which a lever is connected to the inner bearing bush.
  • the clear width between the two side walls 3, 4 kept as low as possible. Therefore all machine elements with the exception of the knife drums, which have a width of more than 100 mm the outside of the side walls 3, 4 arranged.
  • Such, arranged outside Machine elements are the gears 11, 12, the lifting drive for the upper feed roller 30 and the drive for a web clamping device. So much for the machine elements Functional reasons in the area between the maximum working width and the Side walls 3, 4 must be arranged, as is the case, for example, with the bearing bushes the upper feed roller 30 is the case, they are designed so that their width is less than 100 mm.
  • the clear width between the side walls 3, 4 is thus maximum 200 mm wider than the maximum web width of the incoming material web.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Making Paper Articles (AREA)
  • Disintegrating Or Milling (AREA)
  • Paper (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Threshing Machine Elements (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Machines For Manufacturing Corrugated Board In Mechanical Paper-Making Processes (AREA)
  • Nonmetal Cutting Devices (AREA)

Abstract

A machine for cross cutting a material web has a main frame part unitarily formed with a pair of transversely spaced main sides and with at least one main traverse extending transversely between the main sides and a secondary frame part unitarily formed with a pair of transversely spaced secondary sides and with at least one secondary traverse extending transversely between the secondary sides. The main frame part is formed at its sides with a seat on which the respective sides of the secondary frame part fit complementarily with the main and secondary traverses extending parallel to each other. Two blade drums rotatable about respective transversely extending drum axes have ends journaled in the sides at the seat. Fasteners secure the frame parts together at the seat to opposite sides of the drum ends.

Description

Technisches GebietTechnical field

Die Erfindung betrifft eine Maschine zum Querschneiden von Materialbahnen, insbesondere Papier- oder Kartonbahnen, mit einem Maschinengestell bestehend aus jeweils einer Seitenwand an jeder Längsseite der Maschine, wobei die Seitenwände über Quertraversen miteinander verbunden sind, und mit zwei Messertrommeln, die mit ihren axialen Enden jeweils in den Seitenwänden gelagert sind.The invention relates to a machine for cross cutting material webs, in particular Paper or cardboard webs, with a machine frame consisting of one each Sidewall on each long side of the machine, the sidewalls over crossbars are interconnected, and with two knife drums, with their axial Ends are each stored in the side walls.

Stand der TechnikState of the art

Maschinen zum Querschneiden von Papier- oder Kartonbahnen enthalten bekannterweise zwei in einem Maschinengestell übereinander rotierbar gelagerte Messertrommeln, deren Messer eine zwischen ihnen durchlaufende Materialbahn mit einem Scherenschnitt durchschneiden. Das Maschinengestell besteht aus Seitenwänden, die über Quertraversen miteinander verbunden sind. Bei den bekannten Querschneidemaschinen ist das Maschinengestell in einer geschweißten Stahlkonstruktion hergestellt. Die Traversen sind mit den Seitenwänden verschweißt. Üblicherweise bestehen die Seitenwände aus mehreren Seitenteilen, die miteinander verschraubt oder verschweißt sind. Eine derart aufgebaute gattungsgemäße Querschneidemaschine ist in der
DE 198 03 522-A beschrieben.Machines for cross-cutting paper or cardboard webs are known to contain two knife drums rotatably mounted one above the other in a machine frame, the knives of which cut a material web passing between them with a scissor cut. The machine frame consists of side walls that are connected to each other by cross beams. In the known cross-cutting machines, the machine frame is made in a welded steel structure. The trusses are welded to the side walls. The side walls usually consist of several side parts which are screwed or welded together. A generic cross cutting machine constructed in this way is in the
DE 198 03 522-A.

Darstellung der ErfindungPresentation of the invention

Der Erfindung liegt die Aufgabe zugrunde, eine gattungsgemäße Querschneidemaschine so zu verbessern, dass sie bei konstruktiv vereinfachter Bauweise in der Lage ist, Materialbahnen mit hoher Schnittgenauigkeit bei sehr großer Produktionsgeschwindigkeit zu schneiden. The invention has for its object a generic cross cutting machine to be improved in such a way that, with a structurally simplified design, it is able to Material webs with high cutting accuracy at a very high production speed to cut.

Gemäß der Erfindung wird diese Aufgabe dadurch gelöst, dass die Seitenwände des Maschinengestells aus Seitenteilen aufgebaut sind, wobei die entsprechenden Seitenteile an beiden Längseiten mit zumindest einer verbindenden Quertraverse aus einem Stück gegossen sind.According to the invention, this object is achieved in that the side walls of the Machine frame are constructed from side parts, the corresponding side parts on both longitudinal sides with at least one connecting crossbar made of one piece are poured.

Diese Konstruktion ermöglicht eine sehr hohe Fertigungsgenauigkeit und sichert eine extrem hohe Steifigkeit des Gestells, da keine die Stabilität beeinträchtigenden Verschraubungen vorhanden sind. Weiterhin läßt sich das Maschinengestell vereinfacht montieren, da es aus weniger Teilen aufgebaut ist.This construction enables a very high manufacturing accuracy and ensures one extremely high rigidity of the frame, as there are no screw connections that impair stability available. Furthermore, the machine frame can be simplified assemble as it is made up of fewer parts.

Bei der bevorzugten Ausgestaltung nach Patentanspruch 2 baut sich das Maschinengestell aus zwei Gestellteilen auf, wobei jedes Gestellteil aus zwei durch zumindest eine Quertraverse miteinander verbundenen Seitenteilen besteht. Die Trennlinie zwischen zwei Seitenteilen an jeder Längsseite verläuft durch die beiden Drehachsen der Messertrommeln. Diese Konstruktion hat den Vorteil, dass sich die Messertrommeln sehr einfach ein- und ausbauen lassen.In the preferred embodiment according to claim 2, the machine frame is built of two frame parts, each frame part consisting of two by at least one Crossbar interconnected side parts. The dividing line between two Side parts on each long side run through the two axes of rotation of the knife drums. This construction has the advantage that the knife drums can be easily and have it expanded.

Bei der besonders vorteilhaften Ausgestaltung nach Patentanspruch 3 besteht das Maschinengestell aus einem Hauptgestell, das unterhalb der Lagerung der Messertrommeln eine horizontale Stufe aufweist, und einem auf diese Stufe aufgesetzten Zusatzgestell.In the particularly advantageous embodiment according to claim 3, there is Machine frame from a main frame, which is below the storage of the knife drums has a horizontal step, and an additional frame placed on this step.

Gemäß der bevorzugten Ausgestaltung nach Patentanspruch 4 weisen die Seitenteile angegossene Lagerschalen zur Aufnahme der Wälzlager auf, in denen die Messertrommeln gelagert sind. Da kein angeschraubter Lagerflansch erforderlich ist, können die Lageröffnungen mit geringerem Abstand voneinander angeordnet sein. Dies ermöglicht es, im Durchmesser größere Wälzlager einzusetzen und somit die Messertrommeln mit dickeren Wellenzapfen zu versehen.According to the preferred embodiment according to claim 4, the side parts cast on bearing shells to accommodate the roller bearings in which the knife drums are stored. Since no screwed-on bearing flange is required, the Bearing openings can be arranged at a smaller distance from each other. this makes possible it to use larger rolling bearings in diameter and thus the knife drums to provide thicker shaft journals.

Bei der bevorzugten Ausgestaltung nach Patentanspruch 5 ist die aus zwei Klemmwalzen bestehende Vorzieheinrichtung für die Bahn in Bahnlaufrichtung vor den Messertrommeln in dem Maschinengestell gelagert. Die Vorzieheinrichtung benötigt somit kein eigenes Gestell. In the preferred embodiment according to claim 5, the is from two pinch rollers existing pulling device for the web in the direction of web travel in front of the knife drums stored in the machine frame. The pulling device therefore does not need its own Frame.

Gemäß der Ausführungsform nach Patentanspruch 6 sind alle breiteren Maschinenelemente, insbesondere die Zahnräder der Messertrommeln und der Hebeantrieb für eine Vorziehwalze, an der Außenseite der Seitenwände angeordnet. Dies ermöglicht es, das Maschinengestell möglichst schmal mit einer lichten Weite zwischen den Seitenwänden zu gestalten, die maximal 200 mm breiter ist als die maximale Bahnbreite der einlaufenden Materialbahn. Diese Ausgestaltung hat den weiteren Vorteil, dass die zusätzlichen Maschinenelemente für Wartungsarbeiten gut zugänglich sind.According to the embodiment according to claim 6, all of the wider machine elements are especially the gears of the knife drums and the lifting drive for one Feed roller, arranged on the outside of the side walls. This enables the Machine frame as narrow as possible with a clear width between the side walls to be designed that is a maximum of 200 mm wider than the maximum web width of the incoming Web. This configuration has the further advantage that the additional Machine elements are easily accessible for maintenance work.

Kurze Beschreibung der ZeichnungBrief description of the drawing

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

Es zeigen:

Figur 1
eine Ansicht in Bahnlaufrichtung auf die Querschneidemaschine,
Figur 2
eine Seitenansicht und
Figur 3
eine Seitenansicht des aus einem Haupt- und einem Zusatzgestell aufgebauten Maschinengestells.
Show it:
Figure 1
a view in the direction of web travel on the cross cutting machine,
Figure 2
a side view and
Figure 3
a side view of the machine frame constructed from a main frame and an additional frame.

Wege zur Ausführung der ErfindungWays of Carrying Out the Invention

Die in den Figuren 1 und 2 ausschnittsweise schematisch dargestellte Querschneidemaschine dient zum Querschneiden von Papier- oder Kartonbahnen bei der Herstellung von Papier- oder Kartonbögen. Sie arbeitet bei Bahngeschwindigkeiten von mehreren 100 m/min, beispielsweise mit 400 m/min und schneidet Bögen in Formatlängen von ca. 400 mm bis ca. 200 mm. Ihre Arbeitsbreite, i. e. die maximale Breite der zu verarbeitenden Bahn, liegt im Bereich von einem bis mehreren Metern, im Ausführungsbeispiel bei 2200 mm. Die gewünschten Formatbreiten werden durch Längsschneiden der Bahn mittels einer nicht dargestellten Längsschneidevorrichtung eingestellt, von der die Bahn vor dem Querschneiden in Einzelbahnen der gewünschten Breite aufgeteilt wird. The cross-cutting machine shown schematically in sections in FIGS. 1 and 2 is used for cross cutting paper or cardboard webs in the production of Sheets of paper or cardboard. It works at web speeds of several 100 m / min, for example at 400 m / min and cuts sheets in format lengths of approx. 400 mm to approx. 200 mm. Your working width, i. e. the maximum width of the to be processed Bahn, is in the range of one to several meters, in the exemplary embodiment at 2200 mm. The desired format widths are cut by slitting the web a longitudinal cutting device, not shown, from which the web in front of Cross cutting is divided into individual webs of the desired width.

Die Querschneidemaschine enthält zwei Messertrommeln 1, 2, die an ihren axialen Enden in Seitenwänden 3, 4 des Maschinengestells drehbar gelagert sind. Die beiden Messertrommeln 1, 2 sind übereinander mit parallel ausgerichteten Rotationsachsen angeordnet. Jede Messertrommel 1, 2 ist auf ihrem Umfang jeweils mit einem Messer 7, 8 bestückt, die auf bekannte Weise schraubenlinienförmig in axialer Richtung über die Arbeitsbreite verlaufend befestigt sind. Sie sind so gegeneinander eingestellt, dass sie eine durchlaufende Bahn mit einem Scherenschnitt durchtrennen, wobei die schraubenlinienförmige Anordnung der Messer 6, 7 es ermöglicht, eine durchlaufende Bahn senkrecht zu der Bahnlaufrichtung durchzuschneiden.The cross cutting machine contains two knife drums 1, 2, which at their axial ends are rotatably mounted in side walls 3, 4 of the machine frame. The two knife drums 1, 2 are arranged one above the other with axes of rotation aligned in parallel. Each knife drum 1, 2 is equipped on its circumference with a knife 7, 8, the in a known manner helical in the axial direction over the working width are progressively attached. They are set up against each other so that they are continuous Cut the web with a scissor cut, the helical Arrangement of the knives 6, 7 enables a continuous path perpendicular to the Cut the web running direction.

Jede Messertrommel 1, 2 besteht aus einem walzenförmigen Grundkörper, an dessen Stirnseiten Wellenzapfen 8, 9 befestigt sind. Die Wellenzapfen 8, 9 sind über Wälzlager 10 rotierbar in den Seitenwänden 3, 4 gelagert. Auf jedem Wellenzapfen 8, 9 ist als Synchronisationsstimrad jeweils ein Zahnrad 11, 12 befestigt, wobei die Zahnräder 12 der oberen Messertrommel 2 in die Zahnräder 11 der unteren Messertrommel 1 eingreifen. Die Zahnräder 11, 12 sind jeweils an der Außenseite der Seitenwände 3, 4 angeordnet. Zumindest an einen Wellenzapfen 8, 9 ist ein Elektromotor als Drehantrieb für die Messertrommeln 1, 2 angekoppelt, der außen an einer Seitenwand 3, 4 des Maschinengestells angeflanscht ist. Im vorliegenden Ausführungsbeispiel sind zwei Antriebsmotoren 13, 14 vorhanden, die in sogenannter Z-Anordnung an beiden Maschinenseiten jeweils an einer Messertrommel 1, 2 angekoppelt sind.Each knife drum 1, 2 consists of a roller-shaped base body on the End faces shaft journals 8, 9 are attached. The shaft journals 8, 9 are via roller bearings 10 rotatably supported in the side walls 3, 4. On each shaft journal 8, 9 is as Synchronization timing wheel each fixed a gear 11, 12, the gears 12 of the engage the upper knife drum 2 in the gears 11 of the lower knife drum 1. The gears 11, 12 are each arranged on the outside of the side walls 3, 4. At least on a shaft journal 8, 9 is an electric motor as a rotary drive for the Knife drums 1, 2 coupled to the outside of a side wall 3, 4 of the machine frame is flanged. In the present exemplary embodiment, there are two drive motors 13, 14 available, each in a so-called Z arrangement on both machine sides a knife drum 1, 2 are coupled.

Das auf einem Fundament 15 aufgebaute Maschinengestell besteht aus den beiden Seitenwänden 3, 4 und aus Quertraversen 16, 17, 18, 19, die die Seitenwände 3, 4 miteinander verbinden. Wie aus den Figuren 2 und 3 ersichtlich, besteht jede Seitenwand 3, 4 aus zwei Seitenteilen 21, 22, die mittels Schrauben 23 miteinander verschraubbar sind. Wesentlich für die Erfindung ist, dass die Seitenwände 3, 4 aus Seitenteilen 21, 22 aufgebaut sind, wobei die entsprechenden Seitenteile 21 bzw. 22 an beiden Längsseiten mit zumindest einer, bevorzugt allen verbindenden Quertraversen 16, 20 aus einem Stück gegossen sind.The machine frame built on a foundation 15 consists of the two Side walls 3, 4 and from cross members 16, 17, 18, 19, which the side walls 3, 4th connect with each other. As can be seen from Figures 2 and 3, there is each side wall 3, 4 from two side parts 21, 22 which can be screwed together by means of screws 23 are. It is essential for the invention that the side walls 3, 4 consist of side parts 21, 22 are constructed, the corresponding side parts 21 and 22 on both long sides with at least one, preferably all connecting cross members 16, 20 from one piece are poured.

In der in Figur 2 und 3 dargestellten bevorzugten Ausführungsform enthält das Maschinengestell ein Hauptgestell, das von den beiden Seitenteilen 21 und den verbindenden, mit den Seitenteilen 21 aus einem Stück gegossenen Quertraversen 16, 17, 18, 19. In the preferred embodiment shown in FIGS. 2 and 3, the machine frame contains a main frame which is separated from the two side parts 21 and the connecting with the side parts 21 made of one piece cross members 16, 17, 18, 19th

Jeweils ein weiteres Seitenteil 22 bildet mit der ebenfalls mit den Seitenteilen 22 aus einem Stück gegossenen Verbindungstraverse 20 ein Zusatzgestell, das an dem Hauptgestell festgeschraubt werden kann. Jede Seitenwand 3, 4 ist so aufgeteilt, dass die Trennlinie teilweise geradlinig zwischen zwei Seitenteilen 21, 22 durch die Drehachsen der beiden Messertrommeln 1, 2 verläuft. Jedes Seitenteil 21 des Hauptgestells weist unterhalb der Lagerung der Messertrommeln 1, 2 eine horizontale Stufe auf. Auf diese Stufe wird das jeweilige Seitenteil 22 des Zusatzgestells aufgesetzt.In each case, a further side part 22 also forms with the side parts 22 a piece cast connecting cross member 20 an additional frame that on the Main frame can be screwed down. Each side wall 3, 4 is divided so that the Partition line partially straight between two side parts 21, 22 through the axes of rotation of the two knife drums 1, 2 runs. Each side part 21 of the main frame has below the storage of the knife drums 1, 2 on a horizontal step. To this Step, the respective side part 22 of the additional frame is put on.

Wie aus Figur 3 ersichtlich, weist jedes Seitenteil 21, 22 an der senkrechten Kante, an der die Seitenteile zusammengeschraubt werden, zwei mit geringem Abstand übereinander angeordnete halbkreisförmige Aussparungen 24, 25 auf. Beim Zusammensetzen bilden die beiden Aussparungen 24, 25 jeweils eine kreisförmige Lageröffnung, in die das Lager 10 einer Messertrommel 1, 2 eingesetzt wird. Außen um die Lageröffnung ist jeweils eine Lagerschale 26, 27 angegossen, so dass kein zusätzlicher Lagerflansch erforderlich ist. Zwei weitere halbkreisförmige Lagerschalen 28, die ebenfalls an dem jeweiligen Seitenteil 21, 22 angegossen sind, bilden einen Befestigungsflansch für einen Antriebsmotor 14.As can be seen from Figure 3, each side part 21, 22 on the vertical edge on the the side parts are screwed together, two at a short distance above each other arranged semicircular recesses 24, 25. Form when assembling the two recesses 24, 25 each have a circular bearing opening into which the bearing 10 a knife drum 1, 2 is used. There is one on the outside around the bearing opening Bearing shell 26, 27 cast on, so that no additional bearing flange is required. Two further semicircular bearing shells 28, which are also on the respective side part 21, 22 are cast on, form a fastening flange for a drive motor 14.

Die zweiteilige Form des Maschinengestells ermöglicht es, durch Abschrauben des Zusatzgestells die Lagerung der Messertrommeln zu öffnen und so eine Messertrommel 1, 2 schnell ein- und auszubauen.The two-part shape of the machine frame makes it possible to unscrew the Additional frame to open the storage of the knife drums and so a knife drum 1, 2 quick to install and remove.

In Bahnlaufrichtung - in Figur 2 von links nach rechts - ist unmittelbar vor den Messertrommeln 1, 2 eine Bahnvorzieheinrichtung angeordnet, die aus zwei Klemmwalzen 29, 30 besteht. Die untere Klemmwalze 29 wird über einen Riementrieb von einem Antriebsmotor 31 angetrieben, der an der Seitenwand 3 befestigt ist. Sie ist mit jedem axialen Ende in einer Lageröffnung 31 eines Seitenteils 21 gelagert. Die obere Vorziehwalze 30 ist frei drehbar und von der unteren Vorziehwalze 29 abhebbar gelagert, damit eine Bahn zwischen die beiden Walzen 29, 30 eingeführt werden kann. Die Abhebbarkeit der oberen Vorziehwalze 30 wird dadurch ermöglicht, dass sie mit ihren seitlichen Enden in ringförmigen Lagerbuchsen gelagert ist, die exzentrisch drehbar an der Innenseite des jeweiligen Seitenteils 21 befestigt sind. Die exzentrisch gelagerten Lagerbuchsen sind über Hebel mit einer pneumatischen Kolben-Zylinder-Einheit verbunden, die als Hebeantrieb für die obere Vorziehwalze 30 wirkt. Die pneumatische Kolben-Zylinder-Einheit und die an der Lagerbuchse angreifenden Hebel sind auf der Außenseite jeder Seitenwand 3, 4 gelagert. In Figur 3 ist die Öffnung 32 in dem Seitenteil 21 angedeutet, über die ein Hebel mit der innen angeordneten Lagerbuchse verbunden ist.In the direction of web travel - from left to right in FIG. 2 - is directly in front of the knife drums 1, 2 a web pulling device is arranged, which consists of two pinch rollers 29, 30 consists. The lower pinch roller 29 is driven by a drive motor via a belt drive 31 driven, which is fixed to the side wall 3. It is in with every axial end a bearing opening 31 of a side part 21 is mounted. The upper feed roller 30 is free rotatably and lifted from the lower feed roller 29 so that a web can be inserted between the two rollers 29, 30. The withdrawability of the upper Feed roller 30 is made possible by the fact that its lateral ends in ring-shaped bearing bushes is mounted, which can be rotated eccentrically on the inside of the respective side part 21 are attached. The eccentric bearings are connected to a pneumatic piston-cylinder unit via lever, which as Lift drive for the upper feed roller 30 acts. The pneumatic piston-cylinder unit and the levers engaging the bearing bush are on the outside of everyone Side wall 3, 4 stored. The opening 32 in the side part 21 is indicated in FIG. 3, via which a lever is connected to the inner bearing bush.

Zur Verbesserung der Stabilität des Maschinengestells wird die lichte Weite zwischen den beiden Seitenwänden 3, 4 möglichst gering gehalten. Daher sind alle Maschinenelemente mit Ausnahme der Messertrommeln, die eine Breite von mehr als 100 mm aufweisen, an der Außenseite der Seitenwände 3, 4 angeordnet. Derartige, außen angeordnete Maschinenelemente sind die Zahnräder 11, 12, der Hebeantrieb für die obere Vorziehwalze 30 und der Antrieb für eine Bahnklemmeinrichtung. Soweit die Maschinenelemente aus Funktionsgründen innen im Bereich zwischen der maximalen Arbeitsbreite und den Seitenwänden 3, 4 angeordnet sein müssen, wie es beispielsweise bei den Lagerbuchsen der oberen Vorziehwalze 30 der Fall ist, sind diese so gestaltet, dass ihre Breite weniger als 100 mm beträgt. Die lichte Weite zwischen den Seitenwänden 3, 4 ist somit maximal 200 mm breiter als die maximale Bahnbreite der einlaufenden Materialbahn.To improve the stability of the machine frame, the clear width between the two side walls 3, 4 kept as low as possible. Therefore all machine elements with the exception of the knife drums, which have a width of more than 100 mm the outside of the side walls 3, 4 arranged. Such, arranged outside Machine elements are the gears 11, 12, the lifting drive for the upper feed roller 30 and the drive for a web clamping device. So much for the machine elements Functional reasons in the area between the maximum working width and the Side walls 3, 4 must be arranged, as is the case, for example, with the bearing bushes the upper feed roller 30 is the case, they are designed so that their width is less than 100 mm. The clear width between the side walls 3, 4 is thus maximum 200 mm wider than the maximum web width of the incoming material web.

Claims (6)

  1. A machine for cross-cutting strips of material, in particular strips of paper or cardboard, with a machine frame comprising one respective lateral wall (3, 4) on each longitudinal side of the machine in each case, wherein the lateral walls (3, 4) are connected to each other by way of transverse members (16 to 20), and with two cutter drums (1, 2) which are mounted with their axial ends in the lateral walls (3, 4) in each case, characterized in that the lateral walls (3, 4) of the machine frame are formed from lateral parts (21, 22), wherein the corresponding lateral parts (21, 22) are cast in one piece with at least one connecting transverse member (16 to 20) on both longitudinal sides.
  2. A machine according to Claim 1, characterized in that the machine frame is formed from two frame parts, wherein each frame part comprises two lateral parts (21, 22) which are connected to each other by at least one transverse member (16 to 20), and the separating line between two lateral parts (21, 22) on each longitudinal sides extends through the two axes of rotation of the cutter drums (1, 2).
  3. A machine according to Claim 2, characterized in that the machine frame comprises a main frame, which has a horizontal step below the mounting of the cutter drums (1, 2), and an additional frame placed on the said step.
  4. A machine according to one of Claims 1 to 3, characterized in that the lateral parts (21, 22) have integrally cast bearing shells (26, 27) for receiving the rolling bearings (10) in which the cutter drums (1, 2) are mounted.
  5. A machine according to one of Claims 1 to 4, characterized in that a pre-drawing device, comprising two pinching rollers (29, 30), for the strip is mounted in the machine frame upstream of the cutter drums (1, 2) in the running direction of the strip.
  6. A machine according to one of Claims 1 to 5, characterized in that all the wider additional machine elements, in particular the gearwheels (11, 12) of the cutter drums (1, 2) and the lifting drive for a pre-drawing roller (30), are arranged on the outside of the lateral walls (3, 4).
EP00958435A 1999-09-01 2000-08-11 Machine for crosscutting webs of material Expired - Lifetime EP1207983B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19941581 1999-09-01
DE19941581A DE19941581A1 (en) 1999-09-01 1999-09-01 Machine for cross cutting material webs
PCT/EP2000/007859 WO2001015875A1 (en) 1999-09-01 2000-08-11 Machine for crosscutting webs of material

Publications (2)

Publication Number Publication Date
EP1207983A1 EP1207983A1 (en) 2002-05-29
EP1207983B1 true EP1207983B1 (en) 2004-03-24

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Family Applications (1)

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EP00958435A Expired - Lifetime EP1207983B1 (en) 1999-09-01 2000-08-11 Machine for crosscutting webs of material

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US (1) US7000517B1 (en)
EP (1) EP1207983B1 (en)
JP (1) JP4041312B2 (en)
AT (1) ATE262397T1 (en)
DE (2) DE19941581A1 (en)
ES (1) ES2218212T3 (en)
WO (1) WO2001015875A1 (en)

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CN105196605B (en) * 2015-09-15 2017-06-27 无锡鼎茂机械制造有限公司 Special-shaped complex pocket die-cutting machine

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Also Published As

Publication number Publication date
JP2003508240A (en) 2003-03-04
WO2001015875A1 (en) 2001-03-08
EP1207983A1 (en) 2002-05-29
ATE262397T1 (en) 2004-04-15
DE19941581A1 (en) 2001-03-08
ES2218212T3 (en) 2004-11-16
DE50005807D1 (en) 2004-04-29
JP4041312B2 (en) 2008-01-30
US7000517B1 (en) 2006-02-21

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