EP0786315A1 - Device for cutting tubes - Google Patents

Device for cutting tubes Download PDF

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Publication number
EP0786315A1
EP0786315A1 EP97100764A EP97100764A EP0786315A1 EP 0786315 A1 EP0786315 A1 EP 0786315A1 EP 97100764 A EP97100764 A EP 97100764A EP 97100764 A EP97100764 A EP 97100764A EP 0786315 A1 EP0786315 A1 EP 0786315A1
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EP
European Patent Office
Prior art keywords
anvil
cutting
holder
counter
guide
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
EP97100764A
Other languages
German (de)
French (fr)
Other versions
EP0786315B1 (en
Inventor
Günther Nicolai
Ralf Arnold
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.)
Adolf Brodbeck Maschinenbau GmbH and Co KG
Original Assignee
Adolf Brodbeck Maschinenbau GmbH and Co KG
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Publication of EP0786315A1 publication Critical patent/EP0786315A1/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
    • B26D7/20—Cutting beds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D3/00—Cutting work characterised by the nature of the cut made; Apparatus therefor
    • B26D3/16—Cutting rods or tubes transversely
    • B26D3/164—Cutting rods or tubes transversely characterised by means for supporting the tube from the inside
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/20—Cutting beds
    • B26D2007/202—Rollers or cylinders being pivoted during operation
    • 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
    • Y10T82/00—Turning
    • Y10T82/16—Severing or cut-off
    • Y10T82/16426—Infeed means
    • Y10T82/16967—Infeed means with means to support and/or rotate work
    • 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
    • Y10T82/00—Turning
    • Y10T82/22—Portable lathe for pipe turning
    • 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
    • Y10T82/00—Turning
    • Y10T82/25—Lathe
    • Y10T82/2531—Carriage feed
    • Y10T82/2541—Slide rest
    • Y10T82/2543—Multiple tool support

Definitions

  • the invention relates to a device for cutting pipes according to the preamble of claim 1.
  • a dome with at least one anvil can be positioned in the pipe to the interface and with a standing cutting knife that cuts rotating pipes guided and rotating on the mandrel to the preset length.
  • the cutting knives carry out the preset cutting path, whereby the infeed movement includes is limited to an anvil by running the cutting knife.
  • the invention is therefore based on the object of providing a device for cutting pipes in which a clean cutting surface is made possible with a long service life of the cutting tool.
  • anvil in the feed direction of the cutting tool in a counterholder, it can be achieved that at the end of the cutting process, the anvil can give way in the cutting direction immediately before the pipe section is cut off, as a result of which the cutting knife does not run onto a fixed counter surface with the full cutting force and through this is limited. As a result, even with an inaccurate depth adjustment of the cutting knife, it can be avoided that the sensitive cutting edge of the cutting knife can be weakened or blunted by running onto the anvil.
  • the inventive design of a resilient anvil has the further advantage that the adjustment range for the depth adjustment of the cutting path can have a larger tolerance range. This can prevent the cutting knife from being damaged if the cutting depth is set too large. This is particularly advantageous if, in the case of a multi-shift operation, different people operate and set such a device, so that the service life of the cutting tool can be increased independently of a particular sensitivity for setting the cutting depth.
  • the anvil is guided flexibly in the guide by an actuator which can be arranged in the counter-holder, depending on the depth of cut of the cutting knife.
  • an actuator which can be arranged in the counter-holder, depending on the depth of cut of the cutting knife. This can result in an active movement of the anvil during the cutting process, so that, depending on the depth of cut, the anvil is actively guided inwards or to the longitudinal central axis of the tube.
  • This enables a controlled cutting movement, the cutting knife depending on the setting accuracy comes into contact with the anvil surface when the preset depth of cut is reached. This can significantly increase the life of the cutting knife and anvil.
  • FIG. 1 shows the essential parts of a device 10 for cutting pipes 11, such as cardboard pipes or plastic pipes.
  • Machines of this type can cut cardboard tubes with a diameter in the decimeter range and lower meter range, preferably in a range between 25 to 340 mm, and with a wall thickness of up to 20 mm, for example, to a predetermined length.
  • the tubes 11 are fed to a counter-holder 13 on a feed device, which is then run over until the length of the tube 11 to be cut off is reached at the interface.
  • the support rollers 16, 17 support the tube 11 during the cutting process, in which the tube 11 is set in rotation by drive means.
  • the cutting knives 20, 21 are advantageously arranged offset from one another by 180 °, so that during the cutting process on the tube 11 uniform distribution of the cutting forces is given.
  • the cutting knives 20, 21 are fed along the axis 23 until they rest on an end face 24 of an anvil 26. The cut is then completed or the infeed of the cutting knives 20, 21 is then stopped when the free end of the pipe 11 falls away from the rotated pipe section.
  • the anvil 26 is guided by a spring element 27 in a guide 28 of the counter-holder 13 radially to the longitudinal central axis of the tube 11.
  • the anvil 26 can be limited in its radial movement to the outside by, for example, a stop arranged in the guide 28.
  • the counter-holder 13 has a recess in the lateral surface, the size of which is such that only part of the end face 24 comes into contact with the lateral surface of the counter-holder 13.
  • a cover plate 31 can be screwed laterally onto the counter-holder 13. This cover plate 31 is designed like a segment of a circle.
  • the spring element 27 which can be designed, for example, as a compression spring or plate spring assembly, has a compressive force that is less than the feed force of the cutting tool 20, 21, so that when the cutting edge 22 strikes the end face 24 of the anvil 26, the latter is in the guide 28 is compliant. This can give a considerable advantage when setting the cutting depth of the cutting tool 20, 21. Furthermore, this resilient design can protect the sensitive cutting edge 22 from damage, so that the service life can be increased.
  • the spring element 27 can also be provided that a rubber-elastic or thermoplastic material can be used as the spring element 27.
  • the travel of the anvil 26 can be up to 5 mm, a resilient range of 1 mm, for example, generally being sufficient.
  • the cutting tools 20, 21 are in a resting position, so that when a tube 11 is cut several times, the same section of the cutting edge 22 always comes into engagement.
  • the cutting knives 20, 21 are rotated by a certain angular amount after a predetermined number of cutting processes, so that a new and unused cutting edge 22 can be used.
  • Such indexing can be done manually or automatically. Indexing can be done after each cut, at intervals or as required.
  • the cutting tool 20, 21 is advantageously made of HSS, hard metal or another material suitable as a cutting tool.
  • the cutting edge 22 can have a coating to increase the service life, such as a polycrystalline diamond coating or a cubic boron nitride coating. Other alternative coatings can also be provided.
  • a kinematic reversal can be provided for cutting the tube 11 to length, the cutting knives 20, 21 rotating around the tube 11 and being arranged on their bearing axis in a resting manner.
  • the anvil 26 is driven in rotation.
  • the anvil 26 and the cutting knife 20, 21, viewed in a moving system, are arranged to rest with one another.
  • the tube 11 is arranged upright and the cutting blades 20, 21 are driven in rotation in order to cut off a piece of tube.
  • FIG. 2 shows an alternative embodiment of two anvils 26 guided in a counter holder 13.
  • These anvils 26 are moved via an actuator 32, which as a backdrop or cam control actively moves the cutting knives 20, 21 in relation to the depth of cut, so that the anvils 26 one towards the end of the cutting process Carry out a defined radial movement inwards so that the cutting knife 20, 21 just cuts a last layer of the cardboard tubes, but does not come into contact with the end face 24 of the anvil 26 with high force.
  • the active movement of the anvils 26 is given by a cam control, the anvils 26 in the respective guide 28 having spring elements which forcibly move them radially inwards. This can result in a forced outward steering by a rotary movement of the actuator 32.
  • the link 32 can be actuated via a shaft which is connected to a feed mechanism of the cutting knives 20, 21 during the cutting process.
  • FIG. 3 An alternative embodiment to FIG. 2 is shown in FIG. 3.
  • the anvil 26 is conical in shape and its inclined surfaces 33 protrude beyond the lateral surface 34 of the counter-holder 13. It can thereby be achieved that a chamfer is provided at the interface on the inside of the tubes 11 and 11 '. This also means that the last layer of cardboard tubes, for example, can be cut better and cleaner. Overall, this configuration can produce a clean cutting edge with a simultaneous chamfer and a defined inner edge of the tube 11. This can make it easier to further process the tubes 11.
  • the anvils 26 are actively moved outwards via the positive guide 32, so that they at least partially press into the inner surface 36 of the tube 11.
  • the cutting knives 20, 21 are moved radially inwards from the outside towards the anvils 26, these being guided on the axis 23 to the interface 14. These can then, for example — as shown in FIG. 3 — be positioned on the common axis 23 for the anvil 26.
  • an active inward movement of the anvils 26 takes place at least slightly shortly before the anvil 26 and cutting knife 20 abut against one another.
  • the anvils 26 can be moved inwards by the link 32 in such a way that their outer body edges within the lateral surface 34 of the counter holder 13 are positionable. After the length has been set and the tube 11 has been set in rotation, the anvils 26 can be moved outwards via the link 32 at the start of the cutting process.

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  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Sawing (AREA)
  • Earth Drilling (AREA)

Abstract

The pipe is held in a machining die, by locating on an anvil (26) that holds it in place via spring elements (27) or elastic plastic elements creating a force on the inside of the pipe. The anvil may also flexibly located in the holder, in advance direction of the cutting tool (20,21), and may be held in a constant position by the guide (28). Alternatively, the anvil may be guided via a control member (32), located in the counter holder (13), and dependant upon the cutting depth of the cutting tool. The setting member may be a cam disc rotating in the counter holder. The anvil may be conical.

Description

Die Erfindung betrifft eine Vorrichtung zum Schneiden von Rohren gemäß dem Oberbegriff des Anspruchs 1.The invention relates to a device for cutting pipes according to the preamble of claim 1.

Es sind bereits Vorrichtungen zum Schneiden von Rohren, insbesondere von Papprohren bekannt geworden, bei denen ein Dom mit zumindest einem Amboß in dem Rohr zur Schnittstelle positionierbar ist und mit einem stehenden Schneidmesser, das auf dem Dorn geführte und rotierende Rohre auf die voreingestellte Länge schneidet. Die Schneidmesser führen dabei den voreingestellten Schnittweg durch, wobei die Zustellbewegung u.a. durch das Auflaufen des Schneidmessers auf einen Amboß begrenzbar ist.Devices for cutting pipes, in particular cardboard pipes, have already become known, in which a dome with at least one anvil can be positioned in the pipe to the interface and with a standing cutting knife that cuts rotating pipes guided and rotating on the mandrel to the preset length. The cutting knives carry out the preset cutting path, whereby the infeed movement includes is limited to an anvil by running the cutting knife.

Aufgrund der dünnen und empfindlichen Schneidkante eines Schneidmessers kommt es am Ende der Schnittbewegung durch die unter der Zustellkraft erfolgende Anlage der Schneidkante an einer Schnittfläche des Ambosses zur Beschädigung der Schneidkante, so daß diese stumpf wird. Dadurch ist bereits nach kurzer Betriebsdauer ein Wechseln des Schneidmessers erforderlich, wodurch hohe Montage- und Werkzeugkosten verursacht werden. Darüber hinaus wird für die nachfolgenden Schneidvorgänge ein ungenügendes Arbeitsergebnis erzielt sobald das Schneidmesser nicht die dann eine unsaubere Schnittstelle aufweisen. Der Erfindung liegt deshalb die Aufgabe zugrunde, eine Vorrichtung zum Schneiden von Rohren zu schaffen, bei der eine saubere Schnittfläche bei einer hohen Lebensdauer des Schneidwerkzeuges ermöglicht ist.Due to the thin and sensitive cutting edge of a cutting knife, the cutting edge is damaged at the end of the cutting movement by the cutting edge bearing against the feed force on a cutting surface of the anvil, so that the cutting edge becomes blunt. As a result, the cutting knife has to be changed after a short period of operation, which causes high assembly and tool costs. In addition, an insufficient work result is achieved for the subsequent cutting operations as soon as the cutting knife does not which then have an unclean interface. The invention is therefore based on the object of providing a device for cutting pipes in which a clean cutting surface is made possible with a long service life of the cutting tool.

Diese Aufgabe wird erfindungsgemäß durch die kennzeichnenden Merkmale des Anspruchs 1 gelöst.This object is achieved according to the invention by the characterizing features of claim 1.

Durch die nachgiebige Ausgestaltung eines Ambosses in Zustellrichtung des Schneidwerkzeuges in einem Gegenhalter kann erzielt werden, daß am Ende des Schnittvorganges unmittelbar vor der Abtrennung des Rohrabschnittes der Amboß in Schneidrichtung nachgeben kann, wodurch das Schneidmesser nicht mit der vollen Schnittkraft auf eine feststehende Gegenfläche aufläuft und durch diese begrenzt wird. Dadurch kann selbst bei einer nicht exakten Tiefeneinstellung des Schneidmessers vermieden werden, daß die empfindliche Schneidkante des Schneidmessers durch das Auflaufen auf den Amboß geschwächt beziehungsweise stumpf werden kann.Due to the resilient design of an anvil in the feed direction of the cutting tool in a counterholder, it can be achieved that at the end of the cutting process, the anvil can give way in the cutting direction immediately before the pipe section is cut off, as a result of which the cutting knife does not run onto a fixed counter surface with the full cutting force and through this is limited. As a result, even with an inaccurate depth adjustment of the cutting knife, it can be avoided that the sensitive cutting edge of the cutting knife can be weakened or blunted by running onto the anvil.

Die erfindungsgemäße Ausgestaltung eines nachgiebigen Ambosses weist des weiteren den Vorteil auf, daß der Einstellbereich für die Tiefeneinstellung des Schnittweges einen größeren Toleranzbereich aufweisen kann. Dadurch kann bei einer minimal zu groß eingestellten Schnittiefe vermieden werden, daß das Schneidmesser beschädigt wird. Dies ist insbesondere dann von Vorteil, wenn bei einem Mehrschichtbetrieb unterschiedliche Personen eine derartige Vorrichtung bedienen und einstellen, so daß unabhängig von einem jeweiligen Feingefühl für die Einstellung der Schnittiefe die Lebensdauer des Schneidwerkzeuges erhöht sein kann.The inventive design of a resilient anvil has the further advantage that the adjustment range for the depth adjustment of the cutting path can have a larger tolerance range. This can prevent the cutting knife from being damaged if the cutting depth is set too large. This is particularly advantageous if, in the case of a multi-shift operation, different people operate and set such a device, so that the service life of the cutting tool can be increased independently of a particular sensitivity for setting the cutting depth.

Nach einer weiteren vorteilhatten Ausgestaltung der Erfindung ist vorgesehen, daß der Amboß durch ein im Gegenhalter anordenbares Stellglied in der Führung in Abhängigkeit der Schnittiefe des Schneidmessers nachgiebig geführt ist. Dadurch kann eine aktive Bewegung des Ambosses während des Schnittvorganges gegeben sein, so daß in Abhängigkeit der Schnittiefe der Amboß aktiv nach innen beziehungsweise zur Längsmittelachse des Rohres geführt wird. Dadurch kann eine kontrollierte Schnittbewegung erfolgen, wobei in Abhängigkeit der Einstellgenauigkeit das Schneidmesser gerade an der Amboßfläche zum Anliegen kommt, wenn die voreingestellte Schnittiefe erreicht ist. Dadurch kann die Lebensdauer des Schneidmessers und des Ambosses wesentlich erhöht sein.According to a further advantageous embodiment of the invention, it is provided that the anvil is guided flexibly in the guide by an actuator which can be arranged in the counter-holder, depending on the depth of cut of the cutting knife. This can result in an active movement of the anvil during the cutting process, so that, depending on the depth of cut, the anvil is actively guided inwards or to the longitudinal central axis of the tube. This enables a controlled cutting movement, the cutting knife depending on the setting accuracy comes into contact with the anvil surface when the preset depth of cut is reached. This can significantly increase the life of the cutting knife and anvil.

In den weiteren Ansprüchen sind vorteilhafte Ausführungsformen und Weiterbildungen der Erfindung angegeben.Advantageous embodiments and developments of the invention are specified in the further claims.

In der Zeichnung und der nachfolgenden Beschreibung sind bevorzugte Ausführungsbeispiele dargestellt. Es zeigen:

Fig. 1
eine schematische Darstellung auf ein in der Schnittebene dargestelltes Rohr mit einem zur Schnittstelle angeordneten Gegenhalter,
Fig. 2
eine alternative Ausführungsform von im Gegenhalter geführten Ambossen zu Fig. 1 und
Fig. 3
eine schematische Seitenansicht einer weiteren alternativen Ausführungsform gemäß Fig. 2.
Preferred exemplary embodiments are shown in the drawing and the description below. Show it:
Fig. 1
1 shows a schematic illustration of a tube shown in the sectional plane with a counter-holder arranged at the interface,
Fig. 2
an alternative embodiment of anvils guided in the counter holder to Fig. 1 and
Fig. 3
2 shows a schematic side view of a further alternative embodiment according to FIG. 2.

In Fig. 1 sind die erfindungswesentlichen Teile einer Vorrichtung 10 zum Schneiden von Rohren 11, wie beispielsweise Papprohren oder auch Kunststoffrohren, dargestellt. Derartige Maschinen können Papprohre mit einem Durchmesser im Dezimeterbereich und unteren Meterbereich, vorzugsweise in einem Bereich zwischen 25 bis 340 mm, und mit einer Wandstärke von beispielsweise bis zu 20 mm auf eine vorbestimmte Länge abgeschnitten werden. Die Rohre 11 werden auf einer Zuführeinrichtung einem Gegenhalter 13 zugeführt, der anschließend überfahren wird, bis die abzuschneidende Länge des Rohres 11 an der Schnittstelle erreicht ist. Die Stützrollen 16, 17 stützen das Rohr 11 während des Schneidvorganges ab, bei dem das Rohr 11 über Antriebmittel in Rotation versetzt ist. Beim Schneidvorgang wird ein rechtes und linkes Schneidwerkzeug 20, 21, das als scheibenförmiges Schneidmesser ausgebildet ist, zur Längsmittelachse des Rohres 11 bewegt, so daß die Schneidkanten 22 der Schneidwerkzeuge 20, 21 mit dem rotierenden Rohr 11 an einer Schnittstelle 14 in Eintritt gelangen und das Material trennen. Die Schneidmesser 20, 21 sind vorteilhafterweise um 180° zueinander versetzt angeordnet, so daß während des Schneidvorganges auf das Rohr 11 eine gleichmäßige Verteilung der Schnittkräfte gegeben ist. Die Schneidmesser 20, 21 werden entlang der Achse 23 solange zugestellt, bis sie auf einer Stirnfläche 24 eines Ambosses 26 anlegen. Der Schnitt ist dann vollendet bzw. die Zustellung der Schneidmesser 20, 21 wird dann
gestoppt, wenn das freie Ende des Rohres 11 von dem in Rotation versetzten Rohrabschnitt wegfällt.1 shows the essential parts of a device 10 for cutting pipes 11, such as cardboard pipes or plastic pipes. Machines of this type can cut cardboard tubes with a diameter in the decimeter range and lower meter range, preferably in a range between 25 to 340 mm, and with a wall thickness of up to 20 mm, for example, to a predetermined length. The tubes 11 are fed to a counter-holder 13 on a feed device, which is then run over until the length of the tube 11 to be cut off is reached at the interface. The support rollers 16, 17 support the tube 11 during the cutting process, in which the tube 11 is set in rotation by drive means. During the cutting process, a right and left cutting tool 20, 21, which is designed as a disc-shaped cutting knife, is moved to the longitudinal central axis of the tube 11, so that the cutting edges 22 of the cutting tools 20, 21 with the rotating tube 11 enter at an interface 14 and that Separate material. The cutting knives 20, 21 are advantageously arranged offset from one another by 180 °, so that during the cutting process on the tube 11 uniform distribution of the cutting forces is given. The cutting knives 20, 21 are fed along the axis 23 until they rest on an end face 24 of an anvil 26. The cut is then completed or the infeed of the cutting knives 20, 21 is then
stopped when the free end of the pipe 11 falls away from the rotated pipe section.

Der Amboß 26 ist durch ein Federelement 27 in einer Führung 28 des Gegenhalters 13 radial zur Längsmittelachse des Rohres 11 nachgiebig geführt. Der Amboß 26 kann durch beispielsweise einen in der Führung 28 angeordneten Anschlag in seiner radialen Bewegung nach außen begrenzbar sein. Alternativ kann vorgesehen sein, daß der Gegenhalter 13 in der Mantelfläche eine Ausnehmung aufweist, die in ihrer Größe derart ausgebildet ist, daß nur ein Teil der Stirnfläche 24 in der Mantelfläche des Gegenhalters 13 zum Anliegen kommt. Zur einfachen Herstellung und Montage ist vorgesehen, daß nach dem Einsetzen des Ambosses 26 und dem Federelement 27 eine Abdeckplatte 31 seitlich an dem Gegenhalter 13 anschraubbar ist. Diese Abdeckplatte 31 ist kreissegmentartig ausgebildet.The anvil 26 is guided by a spring element 27 in a guide 28 of the counter-holder 13 radially to the longitudinal central axis of the tube 11. The anvil 26 can be limited in its radial movement to the outside by, for example, a stop arranged in the guide 28. Alternatively, it can be provided that the counter-holder 13 has a recess in the lateral surface, the size of which is such that only part of the end face 24 comes into contact with the lateral surface of the counter-holder 13. For simple manufacture and assembly, it is provided that after the anvil 26 and the spring element 27 have been inserted, a cover plate 31 can be screwed laterally onto the counter-holder 13. This cover plate 31 is designed like a segment of a circle.

Das Federelement 27, das beispielsweise als ein Druckfeder oder Tellerfederpaket ausgebildet sein kann, weist eine Druckkraft auf, die geringer als die Zustellkraft des Schneidwerkzeuges 20, 21 ist, so daß beim Auftreffen der Schneidkante 22 auf der Stirnfläche 24 des Ambosses 26 letzterer in der Führung 28 nachgiebig ist. Dadurch kann ein erheblicher Vorteil beim Einstellen der Schnittiefe des Schneidwerkzeuges 20, 21 gegeben sein. Des weiteren kann durch diese nachgiebige Ausgestaltung die empfindliche Schneidkante 22 vor Beschädigungen geschützt sein, so daß die Lebensdauer erhöht werden kann.The spring element 27, which can be designed, for example, as a compression spring or plate spring assembly, has a compressive force that is less than the feed force of the cutting tool 20, 21, so that when the cutting edge 22 strikes the end face 24 of the anvil 26, the latter is in the guide 28 is compliant. This can give a considerable advantage when setting the cutting depth of the cutting tool 20, 21. Furthermore, this resilient design can protect the sensitive cutting edge 22 from damage, so that the service life can be increased.

Alternativ kann auch vorgesehen sein, daß als Federelement 27 ein gummielastisches oder thermoplastisches Material einsetzbar ist. Der Federweg des Ambosses 26 kann bis zu 5 mm betragen, wobei ein nachgiebiger Bereich von beispielsweise 1 mm im allgemeinen genügt.Alternatively, it can also be provided that a rubber-elastic or thermoplastic material can be used as the spring element 27. The travel of the anvil 26 can be up to 5 mm, a resilient range of 1 mm, for example, generally being sufficient.

Während des Schneidvorganges sind die Schneidwerkzeuge 20, 21 in einer ruhenden Position, so daß bei mehrmaligem Abschneiden eines Rohres 11 immer derselbe Abschnitt der Schneidkante 22 in Eingriff kommt. Um die vollständig umlaufende Schneidkante 22 einsetzen zu können, werden die Schneidmesser 20, 21 nach einer vorbestimmten Anzahl von Schneidvorgängen um einen gewissen Winkelbetrag verdreht, so daß eine neue und unbenutzte Schneidkante 22 zum Einsatz kommen kann. Eine derartige Indexierung kann manuell oder automatisch erfolgen. Die Indexierung kann nach jedem Schnitt, in Intervallen oder nach Bedarf erfolgen.During the cutting process, the cutting tools 20, 21 are in a resting position, so that when a tube 11 is cut several times, the same section of the cutting edge 22 always comes into engagement. In order to be able to use the completely circumferential cutting edge 22, the cutting knives 20, 21 are rotated by a certain angular amount after a predetermined number of cutting processes, so that a new and unused cutting edge 22 can be used. Such indexing can be done manually or automatically. Indexing can be done after each cut, at intervals or as required.

Das Schneidweikzeug 20, 21 ist vorteilhafterweise aus HSS, Hartmetall oder einem weiteren als Schneidwerkzeug geeigneten Material hergestellt. Die Schneidkante 22 kann zur Erhöhung der Lebensdauer eine Beschichtung aufweisen, wie beispielsweise eine polykristalline Diamantbeschichtung oder eine kubische Bornitritbeschichtung. Weitere alternative Beschichtungen können ebenfalls vorgesehen sein.The cutting tool 20, 21 is advantageously made of HSS, hard metal or another material suitable as a cutting tool. The cutting edge 22 can have a coating to increase the service life, such as a polycrystalline diamond coating or a cubic boron nitride coating. Other alternative coatings can also be provided.

Alternativ kann eine kinematische Umkehr für das Ablängen des Rohres 11 vorgesehen sein, wobei die Schneidmesser 20, 21 um das Rohr 11 rotieren und auf deren Lagerachse ruhend angeordnet sind. Dabei wird gleichzeitig der Amboß 26 rotierend angetrieben. Der Amboß 26 und das Schneidmesser 20, 21 sind, in bewegtem System gesehen, ruhend zueinander angeordnet.Alternatively, a kinematic reversal can be provided for cutting the tube 11 to length, the cutting knives 20, 21 rotating around the tube 11 and being arranged on their bearing axis in a resting manner. At the same time the anvil 26 is driven in rotation. The anvil 26 and the cutting knife 20, 21, viewed in a moving system, are arranged to rest with one another.

Alternativ kann auch vorgesehen sein, daß das Rohr 11 stehend angeordnet ist und die Schneidmesser 20, 21 rotierend angetrieben werden, um ein Rohrstück abzuschneiden.Alternatively, it can also be provided that the tube 11 is arranged upright and the cutting blades 20, 21 are driven in rotation in order to cut off a piece of tube.

Alternativ kann ebenso vorgesehen sein, daß nur ein oder auch mehrere Schneidmesser über den Umfang verteilt zum Rohr 11 angeordnet sind, wobei in Abhängigkeit der Anzahl der Schneidmesser 20, 21 jeweils ein Amboß 26 im Gegenhalter 13 vorzusehen ist.Alternatively, it can also be provided that only one or more cutting knives are distributed over the circumference of the tube 11, an anvil 26 being provided in the counter-holder 13 depending on the number of cutting knives 20, 21.

In Fig. 2 ist eine alternative Ausführungsform von zwei in einem Gegenhalter 13 geführten Ambossen 26 dargestellt. Diese Ambosse 26 werden über ein Stellglied 32, das als Kulisse oder Kurvensteuerung aktiv im Verhältnis der Schnittiefe die Schneidmesser 20, 21 bewegt, so daß die Ambosse 26 gegen Ende des Schnittvorganges eine definierte radiale Bewegung nach innen durchführen, damit das Schneidmesser 20, 21 gerade noch eine letzte Lage der Papprohre schneidet, jedoch nicht mit hoher Kraft auf der Stirnfläche 24 des Ambosses 26 zum Anliegen kommt. Die aktive Bewegung der Ambosse 26 ist durch eine Kurvensteuerung gegeben, wobei die Ambosse 26 in der jeweiligen Führung 28 Federelemente aufweisen, die diese zwangsweise radial nach innen bewegen. Dadurch kann durch eine Drehbewegung des Stellgliedes 32 ein zwangsweises Nachaußenlenken gegeben sein. Die Ansteuerung der Kulisse 32 kann über eine Welle erfolgen, die in Verbindung mit einem Zustellmechanismus der Schneidmesser 20, 21 während des Schneidvorganges stehen.2 shows an alternative embodiment of two anvils 26 guided in a counter holder 13. These anvils 26 are moved via an actuator 32, which as a backdrop or cam control actively moves the cutting knives 20, 21 in relation to the depth of cut, so that the anvils 26 one towards the end of the cutting process Carry out a defined radial movement inwards so that the cutting knife 20, 21 just cuts a last layer of the cardboard tubes, but does not come into contact with the end face 24 of the anvil 26 with high force. The active movement of the anvils 26 is given by a cam control, the anvils 26 in the respective guide 28 having spring elements which forcibly move them radially inwards. This can result in a forced outward steering by a rotary movement of the actuator 32. The link 32 can be actuated via a shaft which is connected to a feed mechanism of the cutting knives 20, 21 during the cutting process.

In Fig. 3 ist eine alternative Ausführungsform zu Fig. 2 dargestellt. Der Amboß 26 ist konusförmig ausgebildet und ragt mit seinen Schrägflächen 33 über die Mantelfläche 34 des Gegenhalters 13 hinaus. Dadurch kann erreicht werden, daß an der Schnittstelle auf der Innenseite der Rohre 11 und 11' eine Fase vorgesehen ist. Dadurch kann auch erreicht werden, daß beispielsweise bei Papprohren die letzte Lage besser und sauberer abgeschnitten werden kann. Insgesamt kann durch diese Ausgestaltung eine saubere Schnittkante mit einer gleichzeitigen Fase und eine definierte Innenkante des Rohres 11 herstellbar sein. Dadurch kann eine leichtere Weiterverarbeitung der Rohre 11 ermöglicht sein.An alternative embodiment to FIG. 2 is shown in FIG. 3. The anvil 26 is conical in shape and its inclined surfaces 33 protrude beyond the lateral surface 34 of the counter-holder 13. It can thereby be achieved that a chamfer is provided at the interface on the inside of the tubes 11 and 11 '. This also means that the last layer of cardboard tubes, for example, can be cut better and cleaner. Overall, this configuration can produce a clean cutting edge with a simultaneous chamfer and a defined inner edge of the tube 11. This can make it easier to further process the tubes 11.

Zu Beginn des Schneidvorganges werden die Ambosse 26 über die Zwangsführung 32 aktiv nach außen bewegt, so daß diese sich zumindest teilweise in die Innenmantelfläche 36 des Rohres 11 einpressen. Die Schneidmesser 20, 21 werden von außen radial nach innen auf die Ambosse 26 hinzubewegt, wobei diese auf der Achse 23 zur Schnittstelle 14 geführt werden. Diese können dann beispielsweise - wie in Fig. 3 dargestellt - zum Amboß 26 auf der gemeinsamen Achse 23 positionierbar sein. Alternativ kann vorgesehen sein, daß kurz vor dem Aneinanderanliegen von Amboß 26 und Schneidmesser 20 eine aktive Nachinnenbewegung der Ambosse 26 zumindest geringfügig erfolgt.At the beginning of the cutting process, the anvils 26 are actively moved outwards via the positive guide 32, so that they at least partially press into the inner surface 36 of the tube 11. The cutting knives 20, 21 are moved radially inwards from the outside towards the anvils 26, these being guided on the axis 23 to the interface 14. These can then, for example — as shown in FIG. 3 — be positioned on the common axis 23 for the anvil 26. Alternatively, it can be provided that an active inward movement of the anvils 26 takes place at least slightly shortly before the anvil 26 and cutting knife 20 abut against one another.

Zum Überfahren des Gegenhalters 13 und um die nächstfolgende Länge des Rohrabschnittes festzulegen, können die Ambosse 26 durch die Kulisse 32 derart nach innen bewegt werden, daß deren äußere Körperkanten innerhalb der Mantelfläche 34 des Gegenhalters 13 positionierbar sind. Nachdem die Länge eingestellt ist und das Rohr 11 in Drehung gesetzt worden ist, können mit Beginn des Schneidvorganges die Ambosse 26 über die Kulisse 32 nach außen bewegbar sein.In order to run over the counter-holder 13 and to determine the next length of the pipe section, the anvils 26 can be moved inwards by the link 32 in such a way that their outer body edges within the lateral surface 34 of the counter holder 13 are positionable. After the length has been set and the tube 11 has been set in rotation, the anvils 26 can be moved outwards via the link 32 at the start of the cutting process.

Claims (25)

Vorrichtung zum Schneiden von Rohren mit zumindest einem Schneidwerkzeug (20, 21), das gegen jeweils einen zur Schnittstelle (14) des Schneidwerkzeugs (20, 21) anordenbaren und im Inneren des Rohres (11) angeordneten Amboß (26) eines Gegenhalters (13) läuft, wobei während des Schneidvorgangs das Schneidwerkzeug (20, 21) gegen den Gegenhalter (13) zustellbar ist und am Ende des Schneidvorganges in seiner Schnittbewegung durch den Gegenhalter (13) begrenzbar ist, dadurch gekennzeichnet, daß der Amboß (26) in dem Gegenhalter (13) in Zustellrichtung des Schneidwerkzeuges (20, 21) nachgiebig anordenbar ist.Device for cutting pipes with at least one cutting tool (20, 21), which against an anvil (26) of a counter-holder (13), which can be arranged at the interface (14) of the cutting tool (20, 21) and is arranged inside the pipe (11) runs, the cutting tool (20, 21) being deliverable against the counter-holder (13) during the cutting process and its cutting movement at the end of the cutting process being limited by the counter-holder (13), characterized in that the anvil (26) in the counter-holder (13) can be flexibly arranged in the feed direction of the cutting tool (20, 21). Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß der Amboß (26) federnd mit Federelementen (27) in einer Führung (28) gelagert ist.Apparatus according to claim 1, characterized in that the anvil (26) is resiliently mounted with spring elements (27) in a guide (28). Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der Amboß (26) nachgiebig mit kunststoffelastischen Elementen in einer Führung (28) gelagert ist.Device according to claim 1 or 2, characterized in that the anvil (26) is resiliently mounted in a guide (28) with plastic-elastic elements. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß der Amboß (26) durch eine im Gegenhalter (13) anordenbares Stellglied (32) in der Führung (28) in Abhängigkeit der Schnittiefe des Schneidwerkzeuges (20, 21) nachgiebig geführt ist.Device according to claim 1, characterized in that the anvil (26) is arranged in the guide (28) by an actuator (32) which can be arranged in the counter-holder (13). depending on the depth of cut of the cutting tool (20, 21) is flexibly guided. Vorrichtung nach Anspruch 4, dadurch gekennzeichnet, daß das Stellglied (32) eine im Gegenhalter (13) rotierende Kurvenscheibe ist.Apparatus according to claim 4, characterized in that the actuator (32) is a cam disc rotating in the counter-holder (13). Vorrichtung nach Anspruch 4 oder 5, dadurch gekennzeichnet, daß in einer Führung (28) der Ambosse (26) einer Auslenkbewegung des Stellgliedes (32) entgegenwirkende Federelemente (27) anordenbar sind.Apparatus according to claim 4 or 5, characterized in that spring elements (27) which counteract a deflection movement of the actuator (32) can be arranged in a guide (28) of the anvils (26). Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Amboß (26) konusförmig ausgebildet ist.Device according to one of the preceding claims, characterized in that the anvil (26) is conical. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Amboß (26) zumindest teilweise mit seiner Stirnfläche (24) außerhalb der Mantelfläche (34) des Gegenhalters (13) anordenbar ist.Device according to one of the preceding claims, characterized in that the anvil (26) can be arranged at least partially with its end face (24) outside the lateral surface (34) of the counter-holder (13). Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Amboß (26) im Gegenhalter (13) einen Federweg bis zu 5 mm aufweist.Device according to one of the preceding claims, characterized in that the anvil (26) in the counter-holder (13) has a spring travel of up to 5 mm. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Schneidwerkzeug (20, 21) ein scheibenförmiges Schneidmesser ist.Device according to one of the preceding claims, characterized in that the cutting tool (20, 21) is a disk-shaped cutting knife. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Schneidmesser (20, 21) während des Schneidvorganges ruhend angeordnet ist.Device according to one of the preceding claims, characterized in that the cutting knife (20, 21) is arranged at rest during the cutting process. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Schneidmesser (20, 21) vorzugsweise um wenige Winkelgrade indexierbar ist.Device according to one of the preceding claims, characterized in that the cutting knife (20, 21) can preferably be indexed by a few angular degrees. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Schneidwerkzeug (20, 21) aus Hartmetall oder HSS herstellbar ist.Device according to one of the preceding claims, characterized in that the cutting tool (20, 21) can be produced from hard metal or HSS. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Schneidwerkzeug (20, 21) eine Diamantbeschichtung aufweist.Device according to one of the preceding claims, characterized in that the cutting tool (20, 21) has a diamond coating. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Schneidwerkzeug (20, 21) eine Beschichtung aus kubischem Bornitrit aufweist.Device according to one of the preceding claims, characterized in that the cutting tool (20, 21) has a coating of cubic boron nitride. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Amboß (26) in einer radial zur Längsmittelachse des Gegenhalters (13) angeordneten Führung (28) bewegbar ist.Device according to one of the preceding claims, characterized in that the anvil (26) can be moved in a guide (28) arranged radially to the longitudinal central axis of the counter-holder (13). Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß der Amboß (26) mit einer zum Schneidwerkzeug (20, 21) weisenden Stirnfläche (24) in einer Führung (28) anordenbar ist, die im wesentlichen einer Mantelfläche (34) des Gegenhalters (13) entspricht.Apparatus according to claim 1, characterized in that the anvil (26) can be arranged in a guide (28) with an end face (24) facing the cutting tool (20, 21), which essentially comprises a lateral surface (34) of the counter-holder (13) corresponds. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die im Gegenhalter (13) vorgesehene Führung (28) als nutförmige Vertiefung ausgebildet ist, die von einer Abdeckplatte (31) schließbar ist.Device according to Claim 1, characterized in that the guide (28) provided in the counter-holder (13) is designed as a groove-shaped depression which can be closed by a cover plate (31). Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß eine Führung (28) des Ambosses (26) eine in einer Mantelfläche (34) des Gegenhalters (13) ausgebildete Öffnung aufweist, die gegenüber einer Stirnfläche (24) des Ambosses (26) kleiner ausgebildet ist und den Amboß (26) radial nach außen gesichert lagert.Apparatus according to claim 1, characterized in that a guide (28) of the anvil (26) has an opening formed in a lateral surface (34) of the counter-holder (13), which is smaller than an end face (24) of the anvil (26) and stores the anvil (26) secured radially outwards. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß der Amboß (26) mit einer Hinterschneidung einer Führung (28) zusammenwirkt und gegen radiales Lösen sicherbar ist.Device according to claim 1, characterized in that the anvil (26) interacts with an undercut of a guide (28) and can be secured against radial loosening. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß der Amboß (26) in einer radialen Position zur Mantelfläche (34) des Gegenhalters (13) einstellbar ist.Device according to claim 1, characterized in that the anvil (26) is adjustable in a radial position relative to the lateral surface (34) of the counter-holder (13). Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß der Gegenhalter (13) in Rohren (11) mit einem Innendurchmesser von wenigstens 10 mm einsetzbar ist.Device according to claim 1, characterized in that the counter-holder (13) can be used in tubes (11) with an inner diameter of at least 10 mm. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß das Schneidmesser (20, 21) nach jedem Schnitt, in Intervallen oder nach Bedarf indexierbar ist.Device according to claim 1, characterized in that the cutting knife (20, 21) can be indexed after each cut, at intervals or as required. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß zwei Schneidmesser (20, 21) um ein Winkel von 180° zueinander versetzt, auf einer gemeinsamen Achse (23) anordenbar sind.Device according to Claim 1, characterized in that two cutting knives (20, 21) offset from one another by an angle of 180 ° can be arranged on a common axis (23). Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß mehrere Schneidmesser (20, 21), vorzugsweise gleichmäßig über den Umfang verteilt, angeordnet sind.Device according to claim 1, characterized in that a plurality of cutting knives (20, 21) are arranged, preferably evenly distributed over the circumference.
EP97100764A 1996-01-26 1997-01-18 Device for cutting tubes Expired - Lifetime EP0786315B1 (en)

Applications Claiming Priority (2)

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DE19602730 1996-01-26
DE19602730A DE19602730A1 (en) 1996-01-26 1996-01-26 Device for cutting pipes

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EP0786315B1 EP0786315B1 (en) 2001-11-14

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2914574A1 (en) * 2007-04-04 2008-10-10 Eberle Soc Par Actions Simplif Tube cutting or recutting device for manufacturing e.g. packaging box, has inner blade e.g. chamfering blade, housed in cutting mandrel, and radially displaceable in peripheral opening provided in cutting mandrel
ITPI20110084A1 (en) * 2011-07-23 2013-01-24 Ga Vo Meccanica S N C EQUIPMENT FOR CUTTING TRANSVERSALLY TUBULAR BODIES

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19734563C1 (en) * 1997-08-04 1998-12-03 Mannesmann Ag Steel bearing race production
GB9824240D0 (en) * 1998-11-06 1998-12-30 Graham Labelling Systems Limit Sleeve cutting apparatus
US6418822B1 (en) * 2000-06-27 2002-07-16 Sonoco Development, Inc. Cut-off apparatus for non-circular tubes
DE20104972U1 (en) * 2001-03-22 2002-04-25 Krones Ag Device for unfolding a film tube and cutting film sleeves
US6832536B2 (en) 2002-05-21 2004-12-21 Exotic Metal Forming Company Machine and method for servering a thin-walled tube
CA2436328A1 (en) * 2003-07-31 2005-01-31 Daniel Viola Portable plastic pipe cutter beveller system
US9016184B2 (en) * 2012-09-27 2015-04-28 National Machinery Llc Precision forged cartridge case
US9694424B2 (en) * 2014-06-20 2017-07-04 Navarro IP, LLC Apparatus for cutting material and method
KR101615581B1 (en) * 2015-01-13 2016-05-13 (주) 에스엘테크 Micro-controlled Film Cutting Equipment
DE102015104845B4 (en) 2015-03-30 2021-06-24 Adolf Brodbeck Maschinenbau Gmbh & Co. Kg Method and device for at least partial cutting of pipes
US11577348B2 (en) * 2018-07-16 2023-02-14 William A. Schahuber Tank fabricating equipment

Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR526277A (en) * 1920-10-20 1921-10-06 Frederic Beck Machine for cutting cylindrical tubes into elements with parallel bases of circular cross section
US2397048A (en) * 1944-08-16 1946-03-19 John L Pratt Pipe-shearing mechanism
US2749983A (en) * 1952-08-23 1956-06-12 Rogers Russell Ford Pipe and tube cutting apparatus
US3396795A (en) * 1966-09-09 1968-08-13 Dresser Ind Tubing cutter
US3999292A (en) * 1975-09-29 1976-12-28 Breese Manufacturing, Inc. Pipe cutting tool
DE2843372A1 (en) * 1978-10-05 1980-04-10 Hilmar Mueller Cutting machine for sleeves or tubes - has slitting discs working from inside and outside, with cut section falling onto support finger
JPS5866616A (en) * 1981-10-16 1983-04-20 Mitsubishi Plastics Ind Ltd Blockade and cutting method available for tube wall through holes of tubular body
EP0145185A2 (en) * 1983-10-21 1985-06-19 Westinghouse Electric Corporation Precision internal tube cutter
EP0168334A1 (en) * 1984-06-08 1986-01-15 Georges Sireix Apparatus for cutting carton tubes and the like
EP0280395A2 (en) * 1987-02-24 1988-08-31 Xerox Corporation Belt manufacture
FR2620371A1 (en) * 1987-09-11 1989-03-17 Pelikan Ag GRINDING BLADE CUTTING DEVICE, IN PARTICULAR FOR WRITING RIBBONS
GB2264665A (en) * 1992-02-26 1993-09-08 Pioneer Koki Co Ltd Cutting adhesive tape roll stocks
US5383380A (en) * 1992-01-23 1995-01-24 B. J. Mackie And Co. (Aust.)Pty. Ltd. Material cutting machine for slicing a cylinder
WO1995010400A1 (en) * 1993-10-08 1995-04-20 Fabio Perini S.P.A. Machine for producing cardboard or similar tubes, with means for cutting the tube into sections of predetermined lengths

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2038213B (en) * 1978-12-27 1982-09-29 Formlo Ltd Making rings from tube stock
US4437366A (en) * 1981-04-03 1984-03-20 Tri Tool, Inc. Tool carrier for portable lathe
SE503038C2 (en) * 1993-07-09 1996-03-11 Sandvik Ab Diamond-coated carbide or ceramic cutting tools
US5555783A (en) * 1994-12-19 1996-09-17 Automatic Handling, Inc. Core cutting machine having differently sized mandrels

Patent Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR526277A (en) * 1920-10-20 1921-10-06 Frederic Beck Machine for cutting cylindrical tubes into elements with parallel bases of circular cross section
US2397048A (en) * 1944-08-16 1946-03-19 John L Pratt Pipe-shearing mechanism
US2749983A (en) * 1952-08-23 1956-06-12 Rogers Russell Ford Pipe and tube cutting apparatus
US3396795A (en) * 1966-09-09 1968-08-13 Dresser Ind Tubing cutter
US3999292A (en) * 1975-09-29 1976-12-28 Breese Manufacturing, Inc. Pipe cutting tool
DE2843372A1 (en) * 1978-10-05 1980-04-10 Hilmar Mueller Cutting machine for sleeves or tubes - has slitting discs working from inside and outside, with cut section falling onto support finger
JPS5866616A (en) * 1981-10-16 1983-04-20 Mitsubishi Plastics Ind Ltd Blockade and cutting method available for tube wall through holes of tubular body
EP0145185A2 (en) * 1983-10-21 1985-06-19 Westinghouse Electric Corporation Precision internal tube cutter
EP0168334A1 (en) * 1984-06-08 1986-01-15 Georges Sireix Apparatus for cutting carton tubes and the like
EP0280395A2 (en) * 1987-02-24 1988-08-31 Xerox Corporation Belt manufacture
FR2620371A1 (en) * 1987-09-11 1989-03-17 Pelikan Ag GRINDING BLADE CUTTING DEVICE, IN PARTICULAR FOR WRITING RIBBONS
US5383380A (en) * 1992-01-23 1995-01-24 B. J. Mackie And Co. (Aust.)Pty. Ltd. Material cutting machine for slicing a cylinder
GB2264665A (en) * 1992-02-26 1993-09-08 Pioneer Koki Co Ltd Cutting adhesive tape roll stocks
WO1995010400A1 (en) * 1993-10-08 1995-04-20 Fabio Perini S.P.A. Machine for producing cardboard or similar tubes, with means for cutting the tube into sections of predetermined lengths

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 7, no. 159 (M - 228)<1304> 13 July 1983 (1983-07-13) *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2914574A1 (en) * 2007-04-04 2008-10-10 Eberle Soc Par Actions Simplif Tube cutting or recutting device for manufacturing e.g. packaging box, has inner blade e.g. chamfering blade, housed in cutting mandrel, and radially displaceable in peripheral opening provided in cutting mandrel
ITPI20110084A1 (en) * 2011-07-23 2013-01-24 Ga Vo Meccanica S N C EQUIPMENT FOR CUTTING TRANSVERSALLY TUBULAR BODIES
WO2013017987A1 (en) * 2011-07-23 2013-02-07 GA.VO MECCANICA DI TANCREDI ANTONIO & C. S.n.c. Apparatus for transversally sawing a tubular body

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DK0786315T3 (en) 2002-03-11
EP0786315B1 (en) 2001-11-14
US6101910A (en) 2000-08-15
DE59705315D1 (en) 2001-12-20
DE19602730A1 (en) 1997-07-31
ATE208690T1 (en) 2001-11-15

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