EP0960702A2 - Knife holder for transverse cutters - Google Patents

Knife holder for transverse cutters Download PDF

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Publication number
EP0960702A2
EP0960702A2 EP99102343A EP99102343A EP0960702A2 EP 0960702 A2 EP0960702 A2 EP 0960702A2 EP 99102343 A EP99102343 A EP 99102343A EP 99102343 A EP99102343 A EP 99102343A EP 0960702 A2 EP0960702 A2 EP 0960702A2
Authority
EP
European Patent Office
Prior art keywords
roller body
cross cutter
stud bolts
knife
cutter according
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.)
Granted
Application number
EP99102343A
Other languages
German (de)
French (fr)
Other versions
EP0960702A3 (en
EP0960702B1 (en
Inventor
Thomas Maurer
Dirk Gorges
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.)
Xperion GmbH
Original Assignee
Carl Freudenberg KG
FS Composites GmbH and Co KG
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
Application filed by Carl Freudenberg KG, FS Composites GmbH and Co KG filed Critical Carl Freudenberg KG
Publication of EP0960702A2 publication Critical patent/EP0960702A2/en
Publication of EP0960702A3 publication Critical patent/EP0960702A3/en
Application granted granted Critical
Publication of EP0960702B1 publication Critical patent/EP0960702B1/en
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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
    • B26D7/2614—Means for mounting the cutting member
    • 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
    • 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
    • B26D2001/002—Materials or surface treatments therefor, e.g. composite materials
    • B26D2001/0026—Materials or surface treatments therefor, e.g. composite materials fiber reinforced materials

Definitions

  • the invention relates to a cross cutter.
  • a cross cutter is known from DE 43 21 163 A1.
  • the cross cutter is intended for cutting webs from flexible materials, with a cylindrical roller body rotatable around its center of gravity arrives at essentially one circumferential point with one extending parallel to the axis and in a metallic holder Recorded, radially facing knife is provided.
  • the Roller body consists of a plastic tube, with the holder separate generated and connected to the plastic tube.
  • the invention has for its object a cross cutter of the beginning mentioned type to develop in such a way that a simplified definition of the knife holder on the roller body and the cross cutter has a low-parts structure and in terms of manufacturing technology and economy Regarding simple and inexpensive to manufacture.
  • a cross cutter comprising one Roller body and at least one substantially parallel to the axis of rotation of the cross cutter, pointing radially outwards Knife that is at least two adjacent to each other with an axial distance Knife holder is included, each knife holder by at least a stud bolt directly connected to the roller body on the roller body is set.
  • the advantage here is that one is in the axial direction extending ledge, which is essentially the axial length of the roller body corresponds and is connected to at least one knife holder, not for use reached.
  • the bar and the roller body often consist of different materials.
  • the roller body is made of plastic, for example, the bar for example from steel.
  • the direct connection of the stud bolts to the roller body can, for example be formed by a press fit and / or the stud bolts are glued into congruently shaped recesses in the roller body.
  • the stud bolts can also be welded to the roller body.
  • the roller body consists of an epoxy resin reinforced with carbon fibers.
  • Cross cutter arrive in the production of sheets from a continuously fed Web made of a flexible material, for example paper for use.
  • Crucial is that the orbital speed of the cross cutter at the feed speed of the web to be cut is brought into line. It is beneficial if the cross cutter overall has only a comparatively low inertia, so that it exactly to the feeding speed of the dividable web is adaptable. If the roller body consists of a Carbon fiber reinforced epoxy resin, is its inertia greatly reduced, which greatly simplifies the orbital speed of the Adapt roller body to specified feed speeds.
  • the carbon fibers can be used to produce high-strength roller bodies which are particularly thin-walled and excellent have mechanical and dynamic resistance.
  • the carbon fibers can, for example, be distributed in a helical fashion be, with the carbon fibers crossing each other.
  • flexural and torsional strength is a good damping of natural vibrations achieved what about achieving a clean layover favors a long service life.
  • the studs are preferably laminated directly into the roller body. There is therefore no need for secondary fastening aids. By laminating the stud in the roller body results in an unsolvable, durable Connection.
  • the stud bolts can each have an external thread, the knife holder connected to the stud by at least one nut each are.
  • the assembly of such a cross cutter is particularly simple.
  • On the stud bolts laminated into the roller body each become a knife holder put on, the knife holder and the knife, for example, a can form pre-assembled unit, so that the unit as a whole on the Stud bolt is threaded.
  • the Possibility that the knife holder is first mounted on the respective stud bolts be that the knife in the threaded knife holder is used and that afterwards the knife holder with the nuts be attached to the stud bolts.
  • the roller body is tubular. Due to the tubular design Achievement of a low inertial mass further favored. With regard to one The most exact concentricity, the roller body is preferably hollow cylindrical educated. If necessary, there is the option of only a single knife to attach to the outer circumference of the roller body, the center of inertia is placed in the axis of rotation so that there is a distance from the axis of the plastic tube. Imbalance phenomena at initiation a rotary movement cannot occur even in such designs. Large-sized sheets can be separated from a flexible sheet be without the use of a roller body of very large Diameter required.
  • the wall of the roller body can move from the stud bolts in the radial direction to be completely permeated.
  • the advantage here is that the leadership of Studs especially in the corresponding recess of the roller body long and therefore particularly precise.
  • roller body and the stud bolts can be made of the same material be.
  • the advantage here is that the materials of the roller body and stud bolts have matching thermal expansion coefficients and different thermal expansions during the intended use of the cross cutter are safely excluded. Undesirable Tensions between the parts are avoided, which in view on a secure fixing of the studs in the roller body Advantage is.
  • the roller body 1 is designed as a hollow cylinder and consists of an epoxy resin reinforced with carbon fibers.
  • the radial Knife 3 pointing outwards extends essentially parallel to the axis of rotation 2 of the cross cutter and is received by the knife holders 4, 5.
  • six axially spaced Knife holders 4, 5 for use, each of the knife holders 4, 5 arranged on a stud 6, 7 and by a nut 9, 10 on the Roll body 1 is held.
  • the knife holders 4, 5 consist of a metallic one Material.
  • the carbon fibers within the roller body 1 are combined in strands and layer by layer like a continuous one Screw thread embedded in the jacket of the plastic tube, the angle of inclination, based on the axis of rotation 2 changes in layers.
  • the Carbon fibers within the epoxy resin have very good mechanical properties and dynamic properties of the cross cutter.
  • the stud bolts 6, 7 are laminated into the wall 11 of the roller body 1 and extend radially outward.
  • the knife 3 by means of the nuts 9, 10 in itself known way is connected to the roller body 1.
  • the one with the center of inertia coinciding axis of rotation 2 has a distance D from the axis 12 of the roller body 1. This results in an eccentric Orbital movement of the roller body 1 during the intended Use, however, not associated with unbalance and thereby is easy to control.

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  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Knives (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Details Of Cutting Devices (AREA)
  • Threshing Machine Elements (AREA)
  • Rolls And Other Rotary Bodies (AREA)

Abstract

A lateral cutting unit comprises a roller (1) and at least one blade (3) which runs parallel to the rotational axis of the unit. The blade is held by two holders (4,5), each of which is fixed to the roller by bolts (6,7).

Description

Technisches GebietTechnical field

Die Erfindung betrifft einen Querschneider.The invention relates to a cross cutter.

Stand der TechnikState of the art

Ein Querschneider ist aus der DE 43 21 163 A1 bekannt. Der Querschneider ist zum Schneiden von Bahnen aus flexiblen Werkstoffen vorgesehen, wobei ein um seinen Masseschwerpunkt drehbarer, zylindrischer Walzenkörper zur Anwendung gelangt, der an zumindest einer Umfangsstelle mit einem sich im wesentlichen parallel zu der Achse erstreckenden und in einer metallischen Halterung aufgenommenen, radial nach außen weisenden Messer versehen ist. Der Walzenkörper besteht aus einem Kunststoffrohr, wobei die Halterung seperat erzeugt und mit dem Kunststoffrohr verbunden ist.A cross cutter is known from DE 43 21 163 A1. The cross cutter is intended for cutting webs from flexible materials, with a cylindrical roller body rotatable around its center of gravity arrives at essentially one circumferential point with one extending parallel to the axis and in a metallic holder Recorded, radially facing knife is provided. Of the Roller body consists of a plastic tube, with the holder separate generated and connected to the plastic tube.

Darstellung der ErfindungPresentation of the invention

Der Erfindung liegt die Aufgabe zugrunde, einen Querschneider der eingangs genannten Art derart weiterzuentwickeln, daß sich eine vereinfachte Festlegung des Messerhalters am Walzenkörper ergibt und der Querschneider dadurch einen teilearmen Aufbau aufweist und in fertigungstechnischer und wirtschaftlicher Hinsicht einfach und kostengünstig herstellbar ist.The invention has for its object a cross cutter of the beginning mentioned type to develop in such a way that a simplified definition of the knife holder on the roller body and the cross cutter has a low-parts structure and in terms of manufacturing technology and economy Regarding simple and inexpensive to manufacture.

Diese Aufgabe wird erfindungsgemäß mit den kennzeichnenden Merkmalen von Anspruch 1 gelöst. Auf vorteilhafte Ausgestaltungen nehmen die Unteransprüche Bezug.This object is achieved with the characterizing features solved by claim 1. The subclaims take on advantageous refinements Reference.

Zur Lösung der Aufgabe ist ein Querschneider vorgesehen, umfassend einen Walzenkörper und zumindest ein sich im wesentlichen parallel zur Rotationsachse des Querschneiders erstreckendes, radial nach außen weisendes Messer, das in zumindest zwei mit axialem Abstand zueinander benachbarten Messerhaltem aufgenommen ist, wobei jeder Messerhalter durch zumindest einen unmittelbar mit dem Walzenkörper verbundenen Stehbolzen am Walzenkörper festgelegt ist. Hierbei ist von Vorteil, daß eine sich in axialer Richtung erstreckende Leiste, die im wesentlichen der axialen Länge des Walzenkörpers entspricht und mit zumindest einem Messerhalter verbunden ist, nicht zur Anwendung gelangt. Bei derartigen Ausgestaltungen ist es von Nachteil, daß die Leiste und der Walzenkörper häufig aus unterschiedlichen Materialien bestehen. Der Walzenkörper besteht beispielsweise aus Kunststoff, die Leiste beispielsweise aus Stahl. Durch die voneinander abweichenden Temperaturausdehnungskoeffizienten der unterschiedlichen Werkstoffe stellt sich während der bestimmungsgemäßen Verwendung eine Verformung des Querschneiders ein; die Genauigkeit des Schnitts wird dadurch nachteilig beeinflußt. Demgegenüber sind bei dem erfindungsgemäßen Querschneider die Stehbolzen untereinander nicht verbunden. Auch dann, wenn die Stehbolzen und der Walzenkörper aus voneinander abweichenden Materialien bestehen, also voneinander abweichende Temperaturausdehnungskoeffizienten haben, bleibt die Verformung des Querschneiders in jedem Fall innerhalb einer unproblematischen, zulässigen Toleranz. Dadurch, daß die Stehbolzen unmittelbar mit dem Walzenkörper verbunden sind, ergibt sich insgesamt ein besonders teilearmer Aufbau. Die Herstellung des Querschneiders ist dadurch kostengünstig und in fertigungstechnischer Hinsicht einfach.To achieve the object, a cross cutter is provided, comprising one Roller body and at least one substantially parallel to the axis of rotation of the cross cutter, pointing radially outwards Knife that is at least two adjacent to each other with an axial distance Knife holder is included, each knife holder by at least a stud bolt directly connected to the roller body on the roller body is set. The advantage here is that one is in the axial direction extending ledge, which is essentially the axial length of the roller body corresponds and is connected to at least one knife holder, not for use reached. In such configurations, it is disadvantageous that the The bar and the roller body often consist of different materials. The roller body is made of plastic, for example, the bar for example from steel. Due to the differing coefficients of thermal expansion of the different materials arises during the intended use a deformation of the cross cutter; the accuracy of the cut is adversely affected. In contrast are the studs with each other in the cross cutter according to the invention not connected. Even if the studs and the roller body are off there are different materials, that is, different materials Have thermal expansion coefficients, the deformation remains of the cross cutter in any case within an unproblematic, permissible Tolerance. The fact that the studs directly with the roller body connected, the overall result is a particularly low-parts structure. The Manufacture of the cross cutter is therefore inexpensive and in terms of manufacturing technology Respect simply.

Die unmittelbare Verbindung der Stehbolzen mit dem Walzenkörper kann beispielsweise durch eine Presspassung gebildet sein und/ oder die Stehbolzen sind in kongruent gestaltete Ausnehmungen des Walzenkörpers eingeklebt. Auch eine Verschweißung der Stehbolzen mit dem Walzenkörper ist möglich.The direct connection of the stud bolts to the roller body can, for example be formed by a press fit and / or the stud bolts are glued into congruently shaped recesses in the roller body. The stud bolts can also be welded to the roller body.

Gemäß einer vorteilhaften Ausgestaltung ist es vorgesehen, daß der Walzenkörper aus einem mit Kohlenstoffasern verstärkten Epoxidharz besteht. Querschneider gelangen bei der Herstellung von Bogen aus einer kontinuierlich zugeführten Bahn aus einem flexiblen Werkstoff, beispielsweise Papier zur Anwendung. Von entscheidender Wichtigkeit ist, daß die Umlaufgeschwindigkeit des Querschneiders mit der Zuführgeschwindigkeit der abzutrennenden Bahn in Übereinstimmung gebracht wird. Es ist von Vorteil, wenn der Querschneider insgesamt nur eine vergleichsweise geringe Massenträgheit aufweist, so daß er ohne nennenswerten Energieaufwand exakt an die Zuführgeschwindigkeit der abzuteilenden Bahn anpaßbar ist. Besteht der Walzenkörper aus einem mit Kohlenstoffasern verstärkten Epoxidharz, ist seine Trägheitsmasse hierdurch stark reduziert, was es wesentlich vereinfacht, die Umlaufgeschwindigkeit des Walzenkörpers an vorgegebene Zuführgeschwindigkeiten anzupassen. Außerdem ergibt sich ein weiterer Vorteil, der darin zu sehen ist, daß sehr geringe Antriebsleistungen für die Erzeugung einer Drehbewegung des Walzenkörpers genügen. Durch die Kohlenstoffasern lassen sich hochfeste Walzenkörper herstellen, die besonders dünnwandig ausgebildet sind und eine ausgezeichnete mechanische und dynamische Beständigkeit aufweisen.According to an advantageous embodiment, it is provided that the roller body consists of an epoxy resin reinforced with carbon fibers. Cross cutter arrive in the production of sheets from a continuously fed Web made of a flexible material, for example paper for use. Crucial is that the orbital speed of the cross cutter at the feed speed of the web to be cut is brought into line. It is beneficial if the cross cutter overall has only a comparatively low inertia, so that it exactly to the feeding speed of the dividable web is adaptable. If the roller body consists of a Carbon fiber reinforced epoxy resin, is its inertia greatly reduced, which greatly simplifies the orbital speed of the Adapt roller body to specified feed speeds. Furthermore there is another advantage that can be seen in the fact that very little Driving powers for the generation of a rotary movement of the roller body are enough. The carbon fibers can be used to produce high-strength roller bodies which are particularly thin-walled and excellent have mechanical and dynamic resistance.

Die Kohlenstoffasern können beispielsweise schraubengangförmig verteilt angeordnet sein, wobei die Kohlenstoffasern einander überkreuzen. Neben einer guten Biege- und Verdrehfestigkeit wird hierdurch eine gute Dämpfung von Eigenschwingungen erreicht, was die Erzielung eines sauberen Schnittbilds über eine lange Gebrauchsdauer begünstigt.The carbon fibers can, for example, be distributed in a helical fashion be, with the carbon fibers crossing each other. In addition to one good flexural and torsional strength is a good damping of natural vibrations achieved what about achieving a clean layover favors a long service life.

Bevorzugt sind die Stehbolzen in den Walzenkörper unmittelbar einlaminiert. Sekundärer Befestigungshilfsmittel bedarf es daher nicht. Durch das Einlaminieren der Stehbolzen in den Walzenkörper ergibt sich eine unlösbare, dauerhaltbare Verbindung.The studs are preferably laminated directly into the roller body. There is therefore no need for secondary fastening aids. By laminating the stud in the roller body results in an unsolvable, durable Connection.

Die Stehbolzen können jeweils ein Außengewinde aufweisen, wobei die Messerhalter durch jeweils zumindest eine Mutter mit dem Stehbolzen verbunden sind. Die Montage eines derartigen Querschneiders ist besonders einfach. Auf die in den Walzenkörper einlaminierten Stehbolzen wird jeweils ein Messerhalter aufgesetzt, wobei die Messerhalter und das Messer beispielsweise eine vormontierbare Einheit bilden können, so daß die Einheit insgesamt auf die Stehbolzen aufgefädelt wird. Nach einer anderen Ausgestaltung besteht die Möglichkeit, daß zunächst die Messerhalter auf die jeweiligen Stehbolzen montiert werden, daß anschließend das Messer in die aufgefädelten Messerhalter eingesetzt wird und daß im Anschluß daran die Messerhalter mit den Muttern auf den Stehbolzen befestigt werden.The stud bolts can each have an external thread, the knife holder connected to the stud by at least one nut each are. The assembly of such a cross cutter is particularly simple. On the stud bolts laminated into the roller body each become a knife holder put on, the knife holder and the knife, for example, a can form pre-assembled unit, so that the unit as a whole on the Stud bolt is threaded. According to another embodiment, the Possibility that the knife holder is first mounted on the respective stud bolts be that the knife in the threaded knife holder is used and that afterwards the knife holder with the nuts be attached to the stud bolts.

Gemäß einer vorteilhaften Ausgestaltung ist es vorgesehen, daß der Walzenkörper rohrförmig ausgebildet ist. Durch die rohrförmige Ausgestaltung wird die Erzielung einer geringen Trägheitsmasse weiter begünstigt. Im Hinblick auf einen möglichst exakten Rundlauf ist der Walzenkörper bevorzugt hohlzylinderförmig ausgebildet. Bei Bedarf besteht die Möglichkeit, nur ein einziges Messer am Außenumfang des Walzenkörpers anzubringen, wobei der Trägheitsmassenschwerpunkt in die Rotationsachse gelegt wird, so daß sich ein Abstand von der Achse des Kunststoffrohrs ergibt. Unwuchterscheinungen bei Einleitung einer Drehbewegung können auch bei solchen Ausführungen nicht auftreten. Großformatige Bögen können aus einer flexiblen Bahn herausgetrennt werden, ohne daß es der Verwendung eines Walzenkörpers von sehr großem Durchmesser bedarf.According to an advantageous embodiment, it is provided that the roller body is tubular. Due to the tubular design Achievement of a low inertial mass further favored. With regard to one The most exact concentricity, the roller body is preferably hollow cylindrical educated. If necessary, there is the option of only a single knife to attach to the outer circumference of the roller body, the center of inertia is placed in the axis of rotation so that there is a distance from the axis of the plastic tube. Imbalance phenomena at initiation a rotary movement cannot occur even in such designs. Large-sized sheets can be separated from a flexible sheet be without the use of a roller body of very large Diameter required.

Die Wandung des Walzenkörpers kann von den Stehbolzen in radialer Richtung vollständig durchdrungen sein. Hierbei ist von Vorteil, daß die Führung der Stehbolzen in der entsprechenden Ausnehmung des Walzenkörpers besonders lang und somit auch besonders genau ist. Beim Einlaminieren der Stehbolzen in den Walzenkörper wird durch die zuvor beschriebene Ausgestaltung eine große Fläche für die Bindung der beiden Teile aneinander sichergestellt.The wall of the roller body can move from the stud bolts in the radial direction to be completely permeated. The advantage here is that the leadership of Studs especially in the corresponding recess of the roller body long and therefore particularly precise. When laminating the stud bolts is in the roller body by the previously described configuration large area for the binding of the two parts to one another is ensured.

Der Walzenkörper und die Stehbolzen können materialeinheitlich ausgebildet sein. Hierbei ist von Vorteil, daß die Materialien von Walzenkörper und Stehbolzen übereinstimmende Temperaturausdehnungskoeffizienten aufweisen und unterschiedliche Wärmedehnungen während der bestimmungsgemäßen Verwendung des Querschneiders sicher ausgeschlossen sind. Unerwünschte Spannungen zwischen den Teilen werden dadurch vermieden, was im Hinblick auf eine sichere Festlegung der Stehbolzen im Walzenkörper von hervorzuhebendem Vorteil ist.The roller body and the stud bolts can be made of the same material be. The advantage here is that the materials of the roller body and stud bolts have matching thermal expansion coefficients and different thermal expansions during the intended use of the cross cutter are safely excluded. Undesirable Tensions between the parts are avoided, which in view on a secure fixing of the studs in the roller body Advantage is.

Kurzbeschreibung der ZeichnungBrief description of the drawing

Die Erfindung wird nachfolgend anhand der Zeichnungen weiter verdeutlicht. Es zeigen:

Figur 1:
Ein Ausführungsbeispiel des erfindungsgemäßen Querschneiders in quergeschnittener Darstellung entlang der Linie B-B aus Figur 2.
Figur 2:
Den Querschneider aus Figur 1 in längsgeschnittener Darstellung entlang der Linie A-A.
The invention is further illustrated below with the aid of the drawings. Show it:
Figure 1:
An embodiment of the cross cutter according to the invention in a cross-sectional representation along the line BB from FIG. 2.
Figure 2:
The cross cutter of Figure 1 in a longitudinal section along the line AA.

Ausführung der ErfindungImplementation of the invention

Im Ausführungsbeispiel ist der Walzenkörper 1 hohlzylinderförmig ausgebildet und besteht aus einem mit Kohlenstoffasern verstärkten Epoxidharz. Das radial nach außen weisende Messer 3 erstreckt sich im wesentlichen parallel zur Rotationsachse 2 des Querschneiders und ist von den Messerhaltern 4, 5 aufgenommen. In diesem Ausführungsbeispiel gelangen sechs axial zueinander beabstandete Messerhalter 4, 5 zur Anwendung, wobei jeder der Messerhalter 4, 5 auf einem Stehbolzen 6, 7 angeordnet und durch eine Mutter 9, 10 auf dem Walzenkörper 1 gehalten ist.In the exemplary embodiment, the roller body 1 is designed as a hollow cylinder and consists of an epoxy resin reinforced with carbon fibers. The radial Knife 3 pointing outwards extends essentially parallel to the axis of rotation 2 of the cross cutter and is received by the knife holders 4, 5. In this embodiment, six axially spaced Knife holders 4, 5 for use, each of the knife holders 4, 5 arranged on a stud 6, 7 and by a nut 9, 10 on the Roll body 1 is held.

Die Messerhalter 4, 5 bestehen in diesem Ausführungsbeispiel aus einem metallischen Werkstoff.In this exemplary embodiment, the knife holders 4, 5 consist of a metallic one Material.

Die Kohlenstoffasern innerhalb des Walzenkörpers 1 sind in Strängen zusammengefaßt und schichtweise nach Art eines kontinuierlich durchgehenden Schraubengangs in den Mantel des Kunststoffrohrs eingebettet, wobei der Neigungswinkel, bezogen auf die Rotationsachse 2 schichtweise wechselt. Die Kohlenstoffasern innerhalb des Epoxidharzes bewirken sehr gute mechanische und dynamische Eigenschaften des Querschneiders.The carbon fibers within the roller body 1 are combined in strands and layer by layer like a continuous one Screw thread embedded in the jacket of the plastic tube, the angle of inclination, based on the axis of rotation 2 changes in layers. The Carbon fibers within the epoxy resin have very good mechanical properties and dynamic properties of the cross cutter.

Die Stehbolzen 6, 7 sind in die Wandung 11 des Walzenkörpers 1 einlaminiert und erstrecken sich in radialer Richtung nach außen.The stud bolts 6, 7 are laminated into the wall 11 of the roller body 1 and extend radially outward.

Auf dem Außenumfang des Walzenkörpers 1 ist nur an einer Umfangsstelle ein Messer 3 vorgesehen, wobei das Messer 3 mittels der Muttern 9, 10 auf an sich bekannte Weise mit dem Walzenkörper 1 verbunden ist. Die mit dem Massenträgheitsschwerpunkt zusammenfallende Rotationsachse 2 hat einen Abstand D von der Achse 12 des Walzenkörpers 1. Hieraus resultiert eine exzentrische Umlaufbewegung des Walzenkörpers 1 während der bestimmungsgemäßen Verwendung, die jedoch nicht mit Unwuchterscheinungen verbunden und dadurch leicht beherrschbar ist.On the outer circumference of the roller body 1 is only at one circumferential point Knife 3 provided, the knife 3 by means of the nuts 9, 10 in itself known way is connected to the roller body 1. The one with the center of inertia coinciding axis of rotation 2 has a distance D from the axis 12 of the roller body 1. This results in an eccentric Orbital movement of the roller body 1 during the intended Use, however, not associated with unbalance and thereby is easy to control.

Claims (7)

Querschneider, umfassend einen Walzenkörper (1) und zumindest ein sich im wesentlichen parallel zur Rotationsachse (2) des Querschneiders erstreckendes, radial nach außen weisendes Messer (3), das in zumindest zwei mit axialem Abstand zueinander benachbarten Messerhaltem (4, 5) aufgenommen ist, wobei jeder Messerhalter (4, 5) durch zumindest einen unmittelbar mit dem Walzenkörper (1) verbundenen Stehbolzen (6, 7) am Walzenkörper (1) festgelegt ist.Cross cutter comprising a roller body (1) and at least one essentially parallel to the axis of rotation (2) of the cross cutter extending, radially outwardly pointing knife (3), which at least two knife holders adjacent to one another with axial spacing (4, 5) is received, each knife holder (4, 5) by at least a stud bolt (6, directly connected to the roller body (1) 7) is fixed on the roller body (1). Querschneider nach Anspruch 1, dadurch gekennzeichnet, daß der Walzenkörper (1) aus einem mit Kohlenstoffasern verstärkten Epoxidharz besteht.Cross cutter according to claim 1, characterized in that the roller body (1) Made of carbon fiber reinforced epoxy consists. Querschneider nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, daß die Stehbolzen (6, 7) in den Walzenkörper (1) unmittelbar einlaminiert sind.Cross cutter according to one of claims 1 or 2, characterized in that that the stud bolts (6, 7) in the roller body (1) immediately are laminated. Querschneider nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Stehbolzen (6, 7) jeweils ein Außengewinde (8) aufweisen und daß die Messerhalter (4, 5) durch jeweils zumindest eine Mutter (9, 10) mit den Stehbolzen (6, 7) verbunden sind.Cross cutter according to one of claims 1 to 3, characterized in that the stud bolts (6, 7) each have an external thread (8) and that the knife holder (4, 5) by at least one Nut (9, 10) with the stud bolts (6, 7) are connected. Querschneider nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß der Walzenkörper (1) rohrförmig ausgebildet ist.Cross cutter according to one of claims 1 to 4, characterized in that that the roller body (1) is tubular. Querschneider nach Anspruch 5, dadurch gekennzeichnet, daß die Wandung (11) des Walzenkörpers (1) von den Stehbolzen (6, 7) in radialer Richtung vollständig durchdrungen ist. Cross cutter according to claim 5, characterized in that the Wall (11) of the roller body (1) from the stud bolts (6, 7) in a radial Direction is completely permeated. Querschneider nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß der Walzenkörper (1) und die Stehbolzen (6, 7) materialeinheitlich ausgebildet sind.Cross cutter according to one of claims 1 to 6, characterized in that the roller body (1) and the stud bolts (6, 7) of the same material are trained.
EP99102343A 1998-05-28 1999-02-06 Knife holder for transverse cutters Expired - Lifetime EP0960702B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19823964 1998-05-28
DE19823964A DE19823964A1 (en) 1998-05-28 1998-05-28 Cross cutter

Publications (3)

Publication Number Publication Date
EP0960702A2 true EP0960702A2 (en) 1999-12-01
EP0960702A3 EP0960702A3 (en) 2002-04-17
EP0960702B1 EP0960702B1 (en) 2003-06-04

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ID=7869239

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99102343A Expired - Lifetime EP0960702B1 (en) 1998-05-28 1999-02-06 Knife holder for transverse cutters

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Country Link
EP (1) EP0960702B1 (en)
AT (1) ATE242091T1 (en)
DE (2) DE19823964A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1905554A2 (en) * 2006-09-27 2008-04-02 Mitsubishi Heavy Industries, Ltd. Knife cylinder, rotary cutter, and method of attaching knife mounting bracket
EP1790444A3 (en) * 2005-10-22 2009-01-14 Kai Neubauer Cutting cylinder for severing web material
CN109591322A (en) * 2019-01-25 2019-04-09 中国航发北京航空材料研究院 A kind of preparation method of polymer matrix composites fan adjustable vane

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Publication number Priority date Publication date Assignee Title
GB1413189A (en) * 1973-06-22 1975-11-12 Masson Scott Thrissell Eng Ltd Mounting devices for a blade of a rotary cutting machine
DE8900516U1 (en) * 1989-01-18 1989-03-09 BHS-Bayerische Berg-, Hütten- und Salzwerke AG, 8000 München Knife bar for a cross cutter for webs, especially corrugated cardboard
EP0363887A2 (en) * 1988-10-11 1990-04-18 Mitsubishi Rayon Co., Ltd. Roll formed of carbon fiber composite material
DE3912940A1 (en) * 1989-04-20 1990-10-31 Vogel & Ploetscher Gmbh Feinme Cutter and perforator for material web - has groove in blade shaft engaged by clamp with several wedges on groove length part
DE9204618U1 (en) * 1992-04-03 1992-05-27 BHS-Bayerische Berg-, Hütten- und Salzwerke AG, 8000 München Knife bar for a cross cutter for a web of material, especially for corrugated cardboard
EP0600220A1 (en) * 1992-11-30 1994-06-08 BHS Corrugated Maschinen- und Anlagenbau GmbH Transverse cutter for web material, particularly for carton web
EP0630724A1 (en) * 1993-06-25 1994-12-28 Firma Carl Freudenberg Cross cutter
DE19545003A1 (en) * 1995-12-02 1997-06-05 Jagenberg Papiertech Gmbh Blade drum for cutting paper machines

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1413189A (en) * 1973-06-22 1975-11-12 Masson Scott Thrissell Eng Ltd Mounting devices for a blade of a rotary cutting machine
EP0363887A2 (en) * 1988-10-11 1990-04-18 Mitsubishi Rayon Co., Ltd. Roll formed of carbon fiber composite material
DE8900516U1 (en) * 1989-01-18 1989-03-09 BHS-Bayerische Berg-, Hütten- und Salzwerke AG, 8000 München Knife bar for a cross cutter for webs, especially corrugated cardboard
DE3912940A1 (en) * 1989-04-20 1990-10-31 Vogel & Ploetscher Gmbh Feinme Cutter and perforator for material web - has groove in blade shaft engaged by clamp with several wedges on groove length part
DE9204618U1 (en) * 1992-04-03 1992-05-27 BHS-Bayerische Berg-, Hütten- und Salzwerke AG, 8000 München Knife bar for a cross cutter for a web of material, especially for corrugated cardboard
EP0600220A1 (en) * 1992-11-30 1994-06-08 BHS Corrugated Maschinen- und Anlagenbau GmbH Transverse cutter for web material, particularly for carton web
EP0630724A1 (en) * 1993-06-25 1994-12-28 Firma Carl Freudenberg Cross cutter
DE19545003A1 (en) * 1995-12-02 1997-06-05 Jagenberg Papiertech Gmbh Blade drum for cutting paper machines

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1790444A3 (en) * 2005-10-22 2009-01-14 Kai Neubauer Cutting cylinder for severing web material
EP1905554A2 (en) * 2006-09-27 2008-04-02 Mitsubishi Heavy Industries, Ltd. Knife cylinder, rotary cutter, and method of attaching knife mounting bracket
EP1905554A3 (en) * 2006-09-27 2008-07-09 Mitsubishi Heavy Industries, Ltd. Knife cylinder, rotary cutter, and method of attaching knife mounting bracket
CN109591322A (en) * 2019-01-25 2019-04-09 中国航发北京航空材料研究院 A kind of preparation method of polymer matrix composites fan adjustable vane
CN109591322B (en) * 2019-01-25 2020-09-22 中国航发北京航空材料研究院 Preparation method of adjustable blade of resin-based composite material fan

Also Published As

Publication number Publication date
DE19823964A1 (en) 1999-12-02
DE59905796D1 (en) 2003-07-10
EP0960702A3 (en) 2002-04-17
EP0960702B1 (en) 2003-06-04
ATE242091T1 (en) 2003-06-15

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