EP1447187B1 - Slitting apparatus - Google Patents

Slitting apparatus Download PDF

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Publication number
EP1447187B1
EP1447187B1 EP20030027008 EP03027008A EP1447187B1 EP 1447187 B1 EP1447187 B1 EP 1447187B1 EP 20030027008 EP20030027008 EP 20030027008 EP 03027008 A EP03027008 A EP 03027008A EP 1447187 B1 EP1447187 B1 EP 1447187B1
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EP
European Patent Office
Prior art keywords
slitter
vibration
slitter rewinder
blade
drive shaft
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP20030027008
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German (de)
French (fr)
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EP1447187A1 (en
Inventor
Heinrich Dr. Van De Loecht
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.)
Robert Bosch GmbH
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Robert Bosch GmbH
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B26HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26DCUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D3/00Cutting work characterised by the nature of the cut made; Apparatus therefor
    • B26D3/18Cutting work characterised by the nature of the cut made; Apparatus therefor to obtain cubes or the like
    • B26D3/22Cutting work characterised by the nature of the cut made; Apparatus therefor to obtain cubes or the like using rotating knives
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B26HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26DCUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/08Means for treating work or cutting member to facilitate cutting
    • B26D7/086Means for treating work or cutting member to facilitate cutting by vibrating, e.g. ultrasonically

Definitions

  • the invention relates to a slitter for cutting a product carpet according to the closer defined in the preamble of claim 1. Art.
  • Such a roller cutting device is known in practice and is used for example for cutting a product carpet from a sticky mass, such as nougat.
  • the product carpet which is a large-area layer of the sticky mass, is cut into individual strips by means of the roll-cutting device, which can have a large number of rotary-driven rotary cutting knives.
  • the slitter knives are arranged parallel to each other and sit on a common drive shaft.
  • a frame-fixed arranged ultrasonic cutting device for cutting a product carpet from a sticky mass, which comprises sonotrodes formed as cutting blades.
  • the sonotrodes are excited in the cutting process to a longitudinally perpendicular to the product carpet aligned longitudinal vibration having a frequency of about 25 kHz and an amplitude of about 0.05 mm.
  • a cutting device is associated with a high design complexity.
  • the roll cutting device according to the invention for cutting a product carpet with the features according to claim 1 has the advantage that the adhesion of residues of sticky product masses on the or the slitter knives can be largely avoided.
  • the slitter blade is formed in a useful embodiment of a thin-walled steel, in particular a vibration can be suspended, which is aligned substantially parallel to the axis of the drive shaft, wherein the drive shaft is mounted substantially free of play.
  • a vibration can be suspended, which is aligned substantially parallel to the axis of the drive shaft, wherein the drive shaft is mounted substantially free of play.
  • the aligned parallel to the axis of the drive shaft vibration leads to a widening of the cutting gap produced by the slitter blade.
  • the roll cutting blade can exert a vibration by means of the vibration direction, which is aligned at right angles to the plane of the product carpet.
  • the vibration device is formed by a magnetic exciter system which acts directly on the roller cutting blade.
  • a roller cutting device can be produced by a simple modification of a conventional roller cutting device with at least one rotationally driven roller cutting blade, wherein the basic structure is maintained. The modification is such that the slitter blade is directly exposed to the oscillating magnetic field.
  • the magnetic exciter system operates according to a special embodiment of the slitter according to the invention according to a magnetomechanical principle, wherein the exciter system comprises an exciter rotor on which at least a magnet is arranged. This magnet then periodically exposes the roller cutter to a directional magnetic field.
  • the roll cutting device can be produced in a particularly cost-effective manner if the magnet, which is arranged on the excitation rotor, is a permanent magnet, in particular a neodymium-iron-boron magnet.
  • the excitation system comprises an electromagnet.
  • the electromagnet is suitably connected to an electrical control unit which supplies an alternating voltage with a preselected frequency and a preselected amplitude.
  • the vibration to which the slitter blade is exposed is in a range between about 400 Hz and 600 Hz, for example, in particular at about 500 Hz.
  • a good cut quality can be achieved if the vibration of the slitter blade has an amplitude of about 0.3 mm to 0.7 mm, in particular of about 0.5 mm.
  • the slitter or the drive shaft on which sits the slitter can be provided to limit the vibration with a mechanical stop, which is pressed for example as a ring on the drive shaft.
  • the roll cutting knife may be stamped with material stresses in its seating area, which are produced, for example, by pressing or rolling, so that the roll cutting knife resembles a bistable membrane with two stable end positions. In an alternating magnetic field, the winder then jumps back and forth between the two stable end positions.
  • a roller cutting device 10 which serves for cutting a flat product carpet 12 in individual strips.
  • the product carpet 12 consists in the present case of nougat, d. H. from a sticky mass, which rests on a conveyor 14.
  • the slitter 10 comprises a plurality of slitter knives 16, four of which are shown in Figure 2 and which are seated on a common drive shaft 18 and are pressed thereon.
  • the individual roller cutting blades 16 are each bounded in the axial direction of the drive shaft 18 on both sides by a so-called stroke limiter 20, which is in each case pressed onto the drive shaft 18 and has a substantially L-shaped cross-section.
  • the stroke limiter 20 are each used to limit the amplitude of a substantially parallel to the axis of the drive shaft 18 formed vibration of the respective slitter 16.
  • the excitation rotors 22 are seated on a common rotor drive shaft 24 and are each disk-shaped, wherein each of the large surfaces of the rotors 22 four circular permanent magnets 26 are arranged, which are offset by 90 ° to each other.
  • the permanent magnets 26 are each formed of a neodymium-iron-boron magnet.
  • the slitter 16 are offset by the action of the permanent magnet 26 in a vibration which is aligned substantially parallel to the drive shaft 18 of the slitter 16.
  • the vibration has a frequency of about 500 Hz and an amplitude of about 0.5 mm. Due to the oscillation of the slitter blade 16, the application of product residues or product particles to the slitter knives 16 is largely prevented.
  • FIGs 3 and 4 an alternative embodiment of a slitter 30 is shown, which largely corresponds to the slitter according to Figures 1 and 2, but differs from this in that it has an electromagnetic excitation system instead of a magnetomechanical excitation system.
  • the electromagnetic excitation system comprises electromagnets 32 which engage in the spaces between the slitter knives 16 and which are arranged fixed to the frame.
  • the electromagnets 32 are connected via electrical leads 34 to an electrical control unit 36, which supplies an alternating voltage for the electromagnets 32, so that the roller cutting knives 16 can be caused to oscillate by the action of the sinusoidal magnetic field generated by the electromagnet 32.

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  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Windings For Motors And Generators (AREA)
  • Nonmetal Cutting Devices (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)

Description

Die Erfindung geht von einer Rollenschneideinrichtung zum Schneiden eines Produktteppichs gemäß der im Oberbegriff des Patentanspruches 1 näher definierten Art aus.The invention relates to a slitter for cutting a product carpet according to the closer defined in the preamble of claim 1. Art.

Eine derartige Rollenschneideinrichtung ist aus der Praxis bekannt und dient beispielsweise zum Schneiden eines Produktteppichs aus einer klebrigen Masse, wie beispielsweise Nougat. Der Produktteppich, welcher eine großflächige Schicht der klebrigen Masse darstellt, wird mittels der Rollenschneideinrichtung, die eine große Anzahl rotativ angetriebener Rollenschneidmesser aufweisen kann, in Einzelstreifen zerschnitten. Die Rollenschneidmesser sind parallel zueinander angeordnet und sitzen auf einer gemeinsamen Antriebswelle.Such a roller cutting device is known in practice and is used for example for cutting a product carpet from a sticky mass, such as nougat. The product carpet, which is a large-area layer of the sticky mass, is cut into individual strips by means of the roll-cutting device, which can have a large number of rotary-driven rotary cutting knives. The slitter knives are arranged parallel to each other and sit on a common drive shaft.

Bei der bekannten Rollenschneideinrichtung besteht das Problem, dass beim Schneiden des Produktteppichs aus der klebrigen Masse Produktrückstände an dem Rollenschneidmesser verbleiben können, was sich wiederum nachteilig auf die Schneidqualität auswirkt.In the known roller cutting device, there is the problem that product residues may remain on the roller cutting blade when the product carpet is being cut from the sticky mass, which in turn adversely affects the cutting quality.

Alternativ ist es auch bekannt, zum Schneiden eines Produktteppichs aus einer klebrigen Masse eine gestellfest angeordnete Ultraschallschneideinrichtung einzusetzen, die als Schneidklingen ausgebildete Sonotroden umfasst. Die Sonotroden werden bei dem Schneidvorgang zu einer rechtwinklig zum Produktteppich ausgerichteten Longitudinalschwingung angeregt, die eine Frequenz von etwa 25 kHz und eine Amplitude von etwa 0,05 mm aufweist. Eine derartige Schneidvorrichtung ist jedoch mit einem hohen konstruktiven Aufwand verbunden.Alternatively, it is also known to use a frame-fixed arranged ultrasonic cutting device for cutting a product carpet from a sticky mass, which comprises sonotrodes formed as cutting blades. The sonotrodes are excited in the cutting process to a longitudinally perpendicular to the product carpet aligned longitudinal vibration having a frequency of about 25 kHz and an amplitude of about 0.05 mm. However, such a cutting device is associated with a high design complexity.

Aus der US 3,044,510 ist eine Vibrationsschneidanlage insbesondere für Bauholz bekannt. Im Wesentlichen parallel zur Achse der Antriebswelle ausgerichtete Schwingungen werden durch pneumatische Vibratoren erzeugt.From US 3,044,510 a vibratory cutting machine is known in particular for timber. Aligned substantially parallel to the axis of the drive shaft vibrations are generated by pneumatic vibrators.

Vorteile der ErfindungAdvantages of the invention

Die erfindungsgemäße Rollenschneideinrichtung zum Schneiden eines Produktteppichs mit den Merkmalen nach dem Patentanspruch 1 hat den Vorteil, dass das Anhaften von Rückständen klebriger Produktmassen an dem bzw. den Rollenschneidmessern weitgehend vermieden werden kann.The roll cutting device according to the invention for cutting a product carpet with the features according to claim 1 has the advantage that the adhesion of residues of sticky product masses on the or the slitter knives can be largely avoided.

Das Rollenschneidmesser ist bei einer zweckmäßigen Ausführungsform aus einem dünnwandigen Stahl gebildet, der insbesondere einer Schwingung aussetzbar ist, die im wesentlichen parallel zur Achse der Antriebswelle ausgerichtet ist, wobei die Antriebswelle im wesentlichen spielfrei gelagert ist. Alternativ ist es aber auch denkbar, die Antriebswelle mit einem gewissen axialen Spiel zu versehen, so daß das Rollenschneidmesser und die Antriebswelle durch die Wirkung der Schwingungseinrichtung eine gemeinsame Schwingung durchführen. Die parallel zur Achse der Antriebswelle ausgerichtete Schwingung führt zu einer Aufweitung des mittels des Rollenschneidmessers hergestellten Schnittspalts.The slitter blade is formed in a useful embodiment of a thin-walled steel, in particular a vibration can be suspended, which is aligned substantially parallel to the axis of the drive shaft, wherein the drive shaft is mounted substantially free of play. Alternatively, it is also conceivable to provide the drive shaft with a certain axial play, so that the roller cutting blade and the drive shaft perform a common vibration by the action of the vibration device. The aligned parallel to the axis of the drive shaft vibration leads to a widening of the cutting gap produced by the slitter blade.

Zusätzlich oder alternativ kann das Rollenschneidemesser mittels der Schwingungsrichtung eine Schwingung ausüben, die rechtwinklig zur Ebene des Produktteppichs ausgerichtet ist.Additionally or alternatively, the roll cutting blade can exert a vibration by means of the vibration direction, which is aligned at right angles to the plane of the product carpet.

Bei der erfindungsgemäßen Rollenschneideinrichtung wird die Schwingungseinrichtung von einem magnetischen Erregersystem gebildet das unmittelbar auf das Rollenschneidemesser einwirkt. Eine derartige Rollenschneideinrichtung ist durch eine einfache Modifikation einer herkömmlichen Rollenschneideinrichtung mit mindestens einem rotativ angetriebenen Rollenschneidmesser herstellbar, wobei der prinzipielle Aufbau erhalten bleibt. Die Modifikation ist derart gestaltet, daß das Rollenschneidemesser direkt dem einer Schwingung unterzogenen bzw. alternierenden Magnetfeld ausgesetzt ist.In the roller cutting device according to the invention, the vibration device is formed by a magnetic exciter system which acts directly on the roller cutting blade. Such a roller cutting device can be produced by a simple modification of a conventional roller cutting device with at least one rotationally driven roller cutting blade, wherein the basic structure is maintained. The modification is such that the slitter blade is directly exposed to the oscillating magnetic field.

Das magnetische Erregersystem arbeitet bei einer speziellen Ausführungsform der Rollenschneideinrichtung nach der Erfindung nach einem magnetomechanischen Prinzip, wobei das Errgersystem einen Erregerrotor umfaßt, an dem mindestens ein Magnet angeordnet ist. Dieser Magnet setzt dann das Rollenschneidemesser periodisch einem gerichteten Magnetfeld aus.The magnetic exciter system operates according to a special embodiment of the slitter according to the invention according to a magnetomechanical principle, wherein the exciter system comprises an exciter rotor on which at least a magnet is arranged. This magnet then periodically exposes the roller cutter to a directional magnetic field.

Besonders kostengünstig läßt sich die Rollenschneideinrichtung herstellen, wenn der Magnet, der an dem Erregerrotor angeordnet ist, ein Permanentmagnet, insbesondere ein Neodym-Eisen-Bor-Magnet ist.The roll cutting device can be produced in a particularly cost-effective manner if the magnet, which is arranged on the excitation rotor, is a permanent magnet, in particular a neodymium-iron-boron magnet.

Bei einer alternativen Ausführungsform der Rollenschneideinrichtung nach der Erfindung umfaßt das Erregersystem einen Elektromagneten. Der Elektromagnet ist zweckmäßig mit einem elektrischen Steuergerät verbunden, das eine Wechselspannung mit einer vorgewählten Frequenz und einer vorgewählten Amplitude liefert.In an alternative embodiment of the slitter according to the invention, the excitation system comprises an electromagnet. The electromagnet is suitably connected to an electrical control unit which supplies an alternating voltage with a preselected frequency and a preselected amplitude.

Die Schwingung, der das Rollenschneidmesser ausgesetzt ist, liegt beispielsweise in einem Bereich zwischen etwa 400 Hz und 600 Hz, insbesondere bei etwa 500 Hz.The vibration to which the slitter blade is exposed is in a range between about 400 Hz and 600 Hz, for example, in particular at about 500 Hz.

Eine gute Schnittqualität kann erreicht werden, wenn die Schwingung des Rollenschneidmessers eine Amplitude von etwa 0,3 mm bis 0,7 mm, insbesondere von etwa 0,5 mm hat.A good cut quality can be achieved if the vibration of the slitter blade has an amplitude of about 0.3 mm to 0.7 mm, in particular of about 0.5 mm.

Das Rollenschneidmesser oder auch die Antriebswelle, auf der das Rollenschneidmesser sitzt, kann zur Schwingungsbegrenzung mit einem mechanischen Anschlag versehen sein, der beispielsweise als Ring auf die Antriebswelle aufgepreßt ist.The slitter or the drive shaft on which sits the slitter can be provided to limit the vibration with a mechanical stop, which is pressed for example as a ring on the drive shaft.

Alternativ können dem Rollenschneidemesser in seinem Sitzbereich Materialspannungen eingeprägt sein, die beispielsweise durch Pressen oder Rollieren hergestellt sind, so daß das Rollenschneidmesser einer bistabilen Membran mit zwei stabilen Endlagen gleicht. In einem alternierenden Magnetfeld springt dann das Rollenschneidemesser zwischen den beiden stabilen Endlagen hin und her.Alternatively, the roll cutting knife may be stamped with material stresses in its seating area, which are produced, for example, by pressing or rolling, so that the roll cutting knife resembles a bistable membrane with two stable end positions. In an alternating magnetic field, the winder then jumps back and forth between the two stable end positions.

Weitere Vorteile und vorteilhafte Ausgestaltungen des Gegenstandes nach der Erfindung sind der Beschreibung, der Zeichnung und den Patentansprüchen entnehmbar.Further advantages and advantageous embodiments of the article according to the invention are the description, the drawings and the claims removed.

Zeichnungdrawing

Zwei Ausführungsbeispiele der Rollenschneideinrichtung nach der Erfindung sind in der Zeichnung schematisch vereinfacht dargestellt und werden in der nachfolgenden Beschreibung näher erläutert. Es zeigen

  • Figur 1 eine Seitenansicht einer Rollenschneideinrichtung mit einem magnetomechanischen Erregersystem;
  • Figur 2 einen Schnitt durch die Rollenschneideinrichtung nach Figur 1 entlang der Linie II-II in Figur 1;
  • Figur 3 eine Seitenansicht einer Rollenschneideinrichtung mit einem elektromagnetischen Erregersystem;
  • Figur 4 einen Schnitt durch die Rollenschneideinrichtung nach Figur 3 entlang der Linie IV-IV in Figur 3; und
  • Figur 5 einen Schnitt durch ein Rollenschneidmesser im Schnittbereich.
Two embodiments of the roller cutting device according to the invention are shown schematically simplified in the drawing and are explained in more detail in the following description. Show it
  • Figure 1 is a side view of a slitter device with a magnetomechanical exciter system;
  • FIG. 2 shows a section through the roll cutting device according to FIG. 1 along the line II-II in FIG. 1;
  • FIG. 3 shows a side view of a roll cutting device with an electromagnetic exciter system;
  • FIG. 4 shows a section through the roll cutting device according to FIG. 3 along the line IV-IV in FIG. 3; and
  • Figure 5 shows a section through a slitter in the cutting area.

Beschreibung der AusführungsbeispieleDescription of the embodiments

In den Figuren 1 und 2 ist eine Rollenschneideinrichtung 10 dargestellt, die zum Schneiden eines flächigen Produktteppichs 12 in Einzelstreifen dient. Der Produktteppich 12 besteht im vorliegenden Fall aus Nougat, d. h. aus einer klebrigen Masse, welche auf einer Fördereinrichtung 14 aufliegt.In the figures 1 and 2, a roller cutting device 10 is shown, which serves for cutting a flat product carpet 12 in individual strips. The product carpet 12 consists in the present case of nougat, d. H. from a sticky mass, which rests on a conveyor 14.

Die Rollenschneideinrichtung 10 umfaßt eine Vielzahl von Rollenschneidmessern 16, von denen in Figur 2 vier Stück dargestellt sind und die auf einer gemeinsamen Antriebswelle 18 sitzen bzw. auf diese aufgepreßt sind. Die einzelnen Rollenschneidmesser 16 sind jeweils in axialer Richtung der Antriebswelle 18 beidseits von einem sogenannten Hubbegrenzer 20 begrenzt, der jeweils auf die Antriebswelle 18 aufgepreßt ist und einen im wesentlichen L-förmigen Querschnitt hat. Die Hubbegrenzer 20 dienen jeweils zur Begrenzung der Amplitude einer im wesentlichen parallel zur Achse des Antriebswelle 18 ausgebildeten Schwingung des jeweiligen Rollenschneidmessers 16.The slitter 10 comprises a plurality of slitter knives 16, four of which are shown in Figure 2 and which are seated on a common drive shaft 18 and are pressed thereon. The individual roller cutting blades 16 are each bounded in the axial direction of the drive shaft 18 on both sides by a so-called stroke limiter 20, which is in each case pressed onto the drive shaft 18 and has a substantially L-shaped cross-section. The stroke limiter 20 are each used to limit the amplitude of a substantially parallel to the axis of the drive shaft 18 formed vibration of the respective slitter 16.

In den Zwischenraum zwischen den jeweiligen Rollenschneidmessern 16 greift auf der dem Produktteppich 12 abgewandten Seite jeweils ein Erregerrotor 22 ein. Die Erregerrotoren 22 sitzen auf einer gemeinsamen Rotorantriebswelle 24 und sind jeweils scheibenförmig ausgebildet, wobei an den Großflächen der Rotoren 22 jeweils vier kreisförmige Permanentmagneten 26 angeordnet sind, die um 90° gegeneinander versetzt sind. Die Permanentmagneten 26 sind jeweils aus einem Neodym-Eisen-Bor-Magneten gebildet.In the space between the respective slitter knives 16 engages on the product carpet 12 side facing away from each exciter rotor 22 a. The excitation rotors 22 are seated on a common rotor drive shaft 24 and are each disk-shaped, wherein each of the large surfaces of the rotors 22 four circular permanent magnets 26 are arranged, which are offset by 90 ° to each other. The permanent magnets 26 are each formed of a neodymium-iron-boron magnet.

Durch Rotation der Antriebswelle 24 und damit der Erregerrotoren 22 werden die Rollenschneidmesser 16 durch die Wirkung der Permanentmagneten 26 in eine Schwingung versetzt, die im wesentlichen parallel zur Antriebswelle 18 der Rollenschneidmesser 16 ausgerichtet ist. Die Schwingung hat eine Frequenz von etwa 500 Hz und eine Amplitude von etwa 0,5 mm. Durch die Schwingung der Rollenschneidmesser 16 wird ein Ansetzen von Produktrückständen bzw. Produktpartikeln an den Rollenschneidmessern 16 weitgehend unterbunden.By rotation of the drive shaft 24 and thus the exciter rotors 22, the slitter 16 are offset by the action of the permanent magnet 26 in a vibration which is aligned substantially parallel to the drive shaft 18 of the slitter 16. The vibration has a frequency of about 500 Hz and an amplitude of about 0.5 mm. Due to the oscillation of the slitter blade 16, the application of product residues or product particles to the slitter knives 16 is largely prevented.

In den Figuren 3 und 4 ist eine alternative Ausführungsform einer Rollenschneideinrichtung 30 dargestellt, die weitgehend der Rollenschneideinrichtung nach den Figuren 1 und 2 entspricht, sich von dieser aber dadurch unterscheidet, daß sie statt einem magnetomechanischen Erregersystem ein elektromagnetisches Erregersystem aufweist. Das elektromagnetische Erregersystem umfaßt Elektromagneten 32, welche in die Zwischenräume zwischen den Rollenschneidmessern 16 eingreifen und die gestellfest angeordnet sind. Die Elektromagneten 32 sind über elektrische Leitungen 34 mit einem elektrischen Steuergerät 36 verbunden, das eine Wechselspannung für die Elektromagneten 32 liefert, so daß die Rollenschneidmesser 16 durch Einwirkung des von dem Elektromagneten 32 erzeugten, sinusförmigen Magnetfelds in Schwingung versetzt werden können.In Figures 3 and 4, an alternative embodiment of a slitter 30 is shown, which largely corresponds to the slitter according to Figures 1 and 2, but differs from this in that it has an electromagnetic excitation system instead of a magnetomechanical excitation system. The electromagnetic excitation system comprises electromagnets 32 which engage in the spaces between the slitter knives 16 and which are arranged fixed to the frame. The electromagnets 32 are connected via electrical leads 34 to an electrical control unit 36, which supplies an alternating voltage for the electromagnets 32, so that the roller cutting knives 16 can be caused to oscillate by the action of the sinusoidal magnetic field generated by the electromagnet 32.

In Figur 5 ist ein Rollenschneidmesser 16 beim Eintritt in den Produktteppich 12 dargestellt, wobei durch die auf das Rollenschneidmesser 16 ausgeübte Schwingung X t = ΔX sin Wt

Figure imgb0001
ein Schnittspalt 50 entsteht, der sich im Bereich der Schneidkante 52 des Rollenschneidmessers 16 durch eine Schnittspaltbreite ΔX von beispielsweise 1 mm auszeichnet.FIG. 5 shows a roller cutting blade 16 entering the product carpet 12, whereby the vibration exerted on the roller cutting blade 16 X t = ΔX sin Wt
Figure imgb0001
a cutting gap 50 is formed, which is characterized in the region of the cutting edge 52 of the slitter blade 16 by a kerf width .DELTA.X, for example, 1 mm.

Claims (7)

  1. Slitter rewinder device for cutting a product substrate (12), comprising at least one rotationally driven slitter rewinder blade (16), which is seated on a drive shaft (18), and a vibration device (26, 32) which subjects the slitter rewinder blade (16) to vibrations, with the vibrations being oriented substantially parallel to the axis of the drive shaft, characterized in that the vibration device (26, 32) is a magnetic excitation system which acts directly on the slitter rewinder blade.
  2. Slitter rewinder device according to Claim 1,
    characterized in that the excitation system (26) operates in accordance with a magnetomechanical principle and comprises at least one excitation rotor (22) on which at least one magnet (26) is arranged.
  3. Slitter rewinder device according to Claim 2, characterized in that the magnet (26) is a permanent magnet, in particular a neodymium-iron-boron magnet.
  4. Slitter rewinder device according to Claim 1, characterized in that the excitation system comprises an electromagnet (32).
  5. Slitter rewinder device according to one of Claims 1 to 4, characterized in that the vibration has a frequency of approximately 400 Hz to 600 Hz, in particular of approximately 500 Hz.
  6. Slitter rewinder device according to one of Claims 1 to 5, characterized in that the vibration has an amplitude of 0.3 mm to 0.7 mm, in particular of approximately 0.5 mm.
  7. Slitter rewinder device according to one of Claims 1 to 6, characterized by a vibration limiting means for the slitter rewinder blade (16), which vibration limiting means constitutes a mechanical stop (20) or is produced by material stresses on the slitter rewinder blade in the seating region of the latter.
EP20030027008 2003-02-13 2003-11-22 Slitting apparatus Expired - Lifetime EP1447187B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2003105874 DE10305874A1 (en) 2003-02-13 2003-02-13 Slitter
DE10305874 2003-02-13

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EP1447187A1 EP1447187A1 (en) 2004-08-18
EP1447187B1 true EP1447187B1 (en) 2007-04-11

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ES (1) ES2283700T3 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011017227A1 (en) * 2011-04-15 2012-10-18 Weber Maschinenbau Gmbh Breidenbach Process for slicing food products

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3044510A (en) * 1959-04-09 1962-07-17 Schneider Machine Company Vibratory slicing apparatus
FR1264280A (en) * 1960-07-28 1961-06-19 Bruderhaus Maschinen Gmbh Machine to unwind and cut in particular paper strips
JPH07100317B2 (en) * 1990-03-07 1995-11-01 株式会社カイジョー Ultrasonic cutting device and cutting device for breads, processed meat products, etc.
DE4329059A1 (en) * 1993-08-28 1995-03-02 Huang Kuo Ching Cutting apparatus for webs of plastic
GB9610417D0 (en) * 1996-05-17 1996-07-24 Rawson Francis F H Horn tuning and adjustment
GB9711538D0 (en) * 1997-06-05 1997-07-30 Rawson Francis F H Improvements relating to cutting devices
JP4493812B2 (en) * 2000-07-13 2010-06-30 天龍製鋸株式会社 Cutting device

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ES2283700T3 (en) 2007-11-01
EP1447187A1 (en) 2004-08-18
DE10305874A1 (en) 2004-08-26
DE50307008D1 (en) 2007-05-24

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