EP1020265B1 - Apparatus for cleaning the knife ring in a knife ring cutter - Google Patents

Apparatus for cleaning the knife ring in a knife ring cutter Download PDF

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Publication number
EP1020265B1
EP1020265B1 EP00100174A EP00100174A EP1020265B1 EP 1020265 B1 EP1020265 B1 EP 1020265B1 EP 00100174 A EP00100174 A EP 00100174A EP 00100174 A EP00100174 A EP 00100174A EP 1020265 B1 EP1020265 B1 EP 1020265B1
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EP
European Patent Office
Prior art keywords
knife ring
knife
cleaning
ring
rollers
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.)
Revoked
Application number
EP00100174A
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German (de)
French (fr)
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EP1020265A2 (en
EP1020265A3 (en
Inventor
Robert Loth
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B Maier Zerkleinerungstechnik GmbH
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B Maier Zerkleinerungstechnik GmbH
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Application filed by B Maier Zerkleinerungstechnik GmbH filed Critical B Maier Zerkleinerungstechnik GmbH
Publication of EP1020265A2 publication Critical patent/EP1020265A2/en
Publication of EP1020265A3 publication Critical patent/EP1020265A3/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27LREMOVING BARK OR VESTIGES OF BRANCHES; SPLITTING WOOD; MANUFACTURE OF VENEER, WOODEN STICKS, WOOD SHAVINGS, WOOD FIBRES OR WOOD POWDER
    • B27L11/00Manufacture of wood shavings, chips, powder, or the like; Tools therefor
    • B27L11/02Manufacture of wood shavings, chips, powder, or the like; Tools therefor of wood shavings or the like

Definitions

  • the invention relates to a device for cleaning the knife ring of a Knife ring chipper.
  • Chipper of this type are described in DE 32 47 629 C1. They include in single a knife ring with a wreath of knife packets as well as two these bearing support rings, each at the ends of the knife packages are arranged. Each knife package has a knife which is against the Radial direction is inclined and the cutting edge points inwards. It is Furthermore, a rotor is provided, which is arranged coaxially to the blade ring and of this is enclosed. Each knife package includes a knife carrier and a clamping plate sandwiching the knife between them.
  • the blades of the knife ring are subject to relatively high wear. she must therefore be reground at certain intervals. In addition, it comes to a clamping or caking of chips or debris from chips in the gaps between the knife carrier and the knife ring or the knife and the clamping plate or Knife package and the carrying rings. These deposits must be eliminated to ensure proper working of the chipper. This especially applies when using grinding machines.
  • the invention has for its object to provide a device with the knife rings are cleaned in a more rational way than ever since can. This object is solved by the features of claim 1.
  • a device which comprises a support means for Receiving the knife ring to be cleaned, further comprising a housing, Furthermore, a drive to a circulation of the blade ring to be cleaned cause its own axis, and finally elements that are on the Acting knife ring, such as cleaning brushes and nozzles for Application of hot steam, hot or cold water and others Cleaning media. This leaves a polluted and with deposits afflicted knife ring with minimum personnel expenditure quickly and thoroughly clean.
  • the knife ring chipper shown in Figure 1 comprises a fixed one Knife ring 1.
  • the knife ring encloses a rotor 2, which on a Rotor shaft 2.1 is seated. Knife ring 1 and rotor 2 are coaxial with each other arranged.
  • the knife ring 1 is permanently installed in a housing 3.
  • the Housing 3 has an inlet 3.1 for supplying wood chips, Further, a chip outlet channel 3.2, which encloses the knife ring.
  • FIG. 2 shows three knife packages as part of the knife ring 1 shown.
  • Each knife package has a knife 1.1. This is between a knife carrier 1.2 and a clamping plate 1.3 clamped.
  • each Knife package is in the present case with a so-called stick knife 1.4 provided.
  • the cleaning device shown in Figures 3 and 4 shows dashed, and thus very schematically, a knife ring 1.
  • the cleaning device 10 comprises a carrying device.
  • the carrying device comprises two carrying rollers 11.1, 11.2, on which the knife ring 1 can roll.
  • the carrying roller 11.2 is of a Motor 11.3 drivable.
  • a housing 12 can be seen.
  • the housing 12 has two end walls on 12.1 and 12.2 - see Figure 4.
  • the end wall 12.2 can be opened.
  • a carriage 13 serves to carry and retract the Knife ring 1 in the interior of the housing 12 on the support rollers 11.1, 11.2.
  • trailer rollers can be provided. These would then be located in the upper part of the device 10, and Although not outside of the knife ring 1 but within, in order to Attack inner circumference.

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Cleaning In General (AREA)
  • Debarking, Splitting, And Disintegration Of Timber (AREA)
  • Crushing And Pulverization Processes (AREA)

Abstract

A system for cleaning cutting cylinders, e.g. milling heads, shredders etc., has the cutting cylinder held on rollers (11.1, 11.2) with at least one roller powered to rotate the cylinder past cleaning jets (16,17) and past cleaning brushes (14,15) to remove any debris. The cleaning process is performed inside a closed housing into which the cutting cylinder is loaded using a transfer system.

Description

Die Erfindung betrifft eine Vorrichtung zum Reinigen des Messerrings eines Messerring-Zerspaners.The invention relates to a device for cleaning the knife ring of a Knife ring chipper.

Zerspaner dieser Art sind in DE 32 47 629 C1 beschrieben. Sie umfassen im einzelnen einen Messerring mit einem Kranz von Messerpaketen sowie zwei diese tragenden Tragringe, die jeweils an den Enden der Messerpakete angeordnet sind. Jedes Messerpaket weist ein Messer auf, das gegen die Radialrichtung geneigt ist und dessen Schneide nach innen weist. Dabei ist ferner ein Rotor vorgesehen, der koaxial zum Messerring angeordnet und von diesem umschlossen ist. Jedes Messerpaket umfaßt einen Messerträger und eine Klemmplatte, die das Messer sandwichartig zwischen sich einschließen.Chipper of this type are described in DE 32 47 629 C1. They include in single a knife ring with a wreath of knife packets as well as two these bearing support rings, each at the ends of the knife packages are arranged. Each knife package has a knife which is against the Radial direction is inclined and the cutting edge points inwards. It is Furthermore, a rotor is provided, which is arranged coaxially to the blade ring and of this is enclosed. Each knife package includes a knife carrier and a clamping plate sandwiching the knife between them.

Die Messer des Messerringes unterliegen einem relativ hohen Verschleiß. Sie müssen demgemäß in gewissen Zeitabständen nachgeschliffen werden. Außerdem kommt es zu einem Festklemmen oder Festbacken von Spänen oder Trümmern von Spänen in den Spalten zwischen dem Messerträger und dem Messerring oder dem Messer und der Klemmplatte oder dem Messerpaket und den Tragringen. Diese Ablagerungen müssen beseitigt werden, um ein einwandfreies Arbeiten des Zerspaners zu gewährleisten. Dies gilt insbesondere bei Verwendung von Schleifautomaten.The blades of the knife ring are subject to relatively high wear. she must therefore be reground at certain intervals. In addition, it comes to a clamping or caking of chips or debris from chips in the gaps between the knife carrier and the knife ring or the knife and the clamping plate or Knife package and the carrying rings. These deposits must be eliminated to ensure proper working of the chipper. This especially applies when using grinding machines.

Seither hat man die Reinigung manuell vor dem Nachschleifen von Messern vorgenommen. Dies ist zeitraubend. Es erfordert insbesondere teure menschliche Arbeitskraft.Since then, cleaning has been done manually before resharpening knives performed. This is time consuming. It especially requires expensive human worker.

DE 196 29 668 C1 beschreibt eine Vorrichtung zum Nachschärfen von Messern für Messerring-Zerspaner, bei welcher der Messerring in dieser Vorrichtung in einer Zentrierung auf einer Tragplatte montiert und vor dem Schleifen langsam gedreht und mittels Druckluft gereinigt wird. Die aus diesem Dokument bekannten Merkmale sind im Oberbegriff von Anspruch 1 zusammengefasst.DE 196 29 668 C1 describes a device for re-sharpening knives for knife ring chipper, in which the knife ring in this device in a centering mounted on a support plate and slowly before grinding rotated and cleaned by means of compressed air. Those known from this document Features are summarized in the preamble of claim 1.

Der Erfindung liegt die Aufgabe zugrunde, eine Vorrichtung anzugeben, mit der solche Messerringe auf rationellere Weise als seither gereinigt werden können. Diese Aufgabe wird durch die Merkmale von Anspruch 1 gelöst. The invention has for its object to provide a device with the knife rings are cleaned in a more rational way than ever since can. This object is solved by the features of claim 1.

Demgemäß wird eine Vorrichtung vorgesehen, die eine Trageinrichtung zum Aufnehmen des zu reinigenden Messerringes aufweist, ferner ein Gehäuse, weiterhin ein Antrieb, um ein Umlaufen des zu reinigenden Messerringes um seine eigene Achse bewirken, und schließlich Elemente, die auf den Messerring einwirken, beispielsweise Reinigungsbürsten und Düsen zum Aufbringen von heißem Dampf, warmem oder kaltem Wasser und anderen Reinigungsmedien. Damit läßt sich ein verschmutzter und mit Ablagerungen behafteter Messerring bei minimalem Personalaufwand rasch und gründlich reinigen.Accordingly, a device is provided which comprises a support means for Receiving the knife ring to be cleaned, further comprising a housing, Furthermore, a drive to a circulation of the blade ring to be cleaned cause its own axis, and finally elements that are on the Acting knife ring, such as cleaning brushes and nozzles for Application of hot steam, hot or cold water and others Cleaning media. This leaves a polluted and with deposits afflicted knife ring with minimum personnel expenditure quickly and thoroughly clean.

Die Erfindung ist anhand der Zeichnung näher erläutert. Darin ist im einzelnen folgendes dargestellt:

  • Figur 1 zeigt einen Querschnitt durch einen Messerring-Zerspaner.
  • Figur 2 zeigt einen Ausschnitt aus dem Messerring in einer Ansicht in Achsrichtung und gegenüber der Figur 1 stark vergrößert.
  • Figur 3 zeigt eine erfindungsgemäße Reinigungsvorrichtung in einer stirnseitigen Ansicht.
  • Figur 4 zeigt eine erfindungsgemäße Reinigungsvorrichtung in einer Seitenansicht.
  • The invention is explained in more detail with reference to the drawing. The following is shown in detail:
  • FIG. 1 shows a cross section through a knife ring chipper.
  • Figure 2 shows a section of the knife ring in a view in the axial direction and compared to the figure 1 greatly enlarged.
  • FIG. 3 shows a cleaning device according to the invention in an end view.
  • FIG. 4 shows a cleaning device according to the invention in a side view.
  • Der in Figur 1 gezeigte Messerring-Zerspaner umfaßt einen feststehenden Messerring 1. Der Messering umschließt einen Rotor 2, der auf einer Rotorwelle 2.1 sitzt. Messerring 1 und Rotor 2 sind koaxial zueinander angeordnet. Der Messerring 1 ist in einem Gehäuse 3 fest eingebaut. Das Gehäuse 3 weist einen Einlauf 3.1 zum Zuführen von Hackschnitzeln auf, ferner einen Späneaustrittskanal 3.2, der den Messerring umschließt. The knife ring chipper shown in Figure 1 comprises a fixed one Knife ring 1. The knife ring encloses a rotor 2, which on a Rotor shaft 2.1 is seated. Knife ring 1 and rotor 2 are coaxial with each other arranged. The knife ring 1 is permanently installed in a housing 3. The Housing 3 has an inlet 3.1 for supplying wood chips, Further, a chip outlet channel 3.2, which encloses the knife ring.

    In Figur 2 sind drei Messerpakete als Bestandteil des Messerringes 1 dargestellt. Jedes Messerpaket weist ein Messer 1.1 auf. Dieses ist zwischen einem Messerträger 1.2 und einer Klemmplatte 1.3 eingespannt. Jedes Messerpaket ist im vorliegenden Falle mit einem sogenannten Stockmesser 1.4 versehen. Die beiden Messer, nämlich das Messer 1.1 und das Messer 1.4, bilden jeweils miteinander einen Spalt 1.5 zum Durchtritt der Späne radial nach außen.FIG. 2 shows three knife packages as part of the knife ring 1 shown. Each knife package has a knife 1.1. This is between a knife carrier 1.2 and a clamping plate 1.3 clamped. each Knife package is in the present case with a so-called stick knife 1.4 provided. The two knives, namely the knife 1.1 and the knife 1.4, each form a gap with each other 1.5 for the passage of the chips radially outward.

    In Phantomlinien sind Schaufeln des Rotors dargestellt. Siehe die Schaufel 2.1, die ein Spaltmesser 2.2 trägt. Man erkennt, daß die radiale Position des Spaltmessers 2.2 ein kritisches Maß ist. Wird dieses überschritten, so kommt es zu einer Kollision zwischen dem Spaltmesser 2.2 und dem Messer 1.1 des Messerringes 1.In phantom lines blades of the rotor are shown. See the shovel 2.1, which carries a splitting blade 2.2. It can be seen that the radial position of the Splitting blade 2.2 is a critical measure. If this is exceeded, then comes there is a collision between the splitting blade 2.2 and the knife 1.1 of the Knife ring 1.

    Die in den Figuren 3 und 4 dargestellte Reinigungsvorrichtung zeigt gestrichelt, und damit sehr schematisch, einen Messerring 1. Dieser befindet sich in einer Reinigungsvorrichtung 10. Die Reinigungsvorrichtung 10 umfaßt eine Trageinrichtung. Die Trageinrichtung umfaßt zwei Tragrollen 11.1, 11.2, auf welchen der Messerring 1 abrollen kann. Die Tragrolle 11.2 ist von einem Motor 11.3 antreibbar. Man erkennt ferner ein Gehäuse 12. Das Gehäuse 12 weist zwei Stirnwände auf 12.1 und 12.2 auf - siehe Figur 4. Die Stirnwand 12.2 läßt sich öffnen. Ein Wagen 13 dient zum Tragen und Einfahren des Messerringes 1 in das Innere des Gehäuses 12 auf die Tragrollen 11.1, 11.2.The cleaning device shown in Figures 3 and 4 shows dashed, and thus very schematically, a knife ring 1. This is located in a cleaning device 10. The cleaning device 10 comprises a carrying device. The carrying device comprises two carrying rollers 11.1, 11.2, on which the knife ring 1 can roll. The carrying roller 11.2 is of a Motor 11.3 drivable. Furthermore, a housing 12 can be seen. The housing 12 has two end walls on 12.1 and 12.2 - see Figure 4. The end wall 12.2 can be opened. A carriage 13 serves to carry and retract the Knife ring 1 in the interior of the housing 12 on the support rollers 11.1, 11.2.

    Im Inneren des Gehäuses sind mehrere Reinigungselemente vorgesehen. Dabei handelt es sich um Wasserstrahldüsen 14, rotierbare Bürsten 15, Dampfdüsen 16 und Heißwasserdüsen 17.Inside the housing several cleaning elements are provided. These are water jet nozzles 14, rotatable brushes 15, Steam nozzles 16 and hot water nozzles 17.

    Wenn der Messerring 1 in die Vorrichtung 10 eingesetzt ist, so versetzt der Motor 11.3 die Rolle 11.2 in Umlauf. Diese nimmt den Messerring 1 mit, sodaß dieser ebenfalls umläuft. Die genannten Reinigungselemente werden sodann aktiviert. Dies kann durch ein bestimmtes Steuerschema in einem bestimmten Rhythmus geschehen.When the knife ring 1 is inserted into the device 10, so offset the Motor 11.3 the roller 11.2 in circulation. This takes the knife ring 1, so that this also rotates. The mentioned cleaning elements will be then activated. This can be done by a specific control scheme in one specific rhythm happen.

    Statt der Tragrollen 11.1, 11.2 können auch Hängerollen vorgesehen werden. Diese wären dann im oberen Bereich der Vorrichtung 10 anzuordnen, und zwar nicht außerhalb des Messerringes 1 sondern innerhalb, um an dessen Innenumfang anzugreifen.Instead of the support rollers 11.1, 11.2 also trailer rollers can be provided. These would then be located in the upper part of the device 10, and Although not outside of the knife ring 1 but within, in order to Attack inner circumference.

    Claims (4)

    1. Device for cleaning the knife ring (1) of a knife ring cutter;
      1.1 comprising a support mechanism (11.1), (11.2) for receiving the knife ring (1) in a position, in which the axis of the knife ring (1) extends at least virtually horizontally;
      1.2 the support mechanism comprises rollers (11.1), (11.2), which engage the outer or inner periphery of the knife ring (1), and on which the knife ring (1) rolls;
      1.3 comprising a housing (12);
      1.4 comprising cleaning elements (14), (15), (16), (17), which face the knife ring (1);
      1.5 comprising a drive for driving the rollers (11.1), (11.2) or the knife ring (1);
      characterised in that the drive is configured in the form of a motor (11.3) which sets one of the rollers (11.2) rotating, so that the roller entrains the knife ring (1) in such a way that it also rotates.
    2. Device according to claim 1, characterised in that the rollers (11.1), (11.2) engage on the outer periphery of the knife ring (1).
    3. Device according to claim 1 or 2, characterised in that a carriage (13) is provided for introducing the knife ring (1) into the housing (12).
    4. Device according to any one of claims 1 to 3, characterised in that the cleaning elements comprise cleaning brushes and nozzles for applying a medium onto the knife ring (1).
    EP00100174A 1999-01-13 2000-01-11 Apparatus for cleaning the knife ring in a knife ring cutter Revoked EP1020265B1 (en)

    Applications Claiming Priority (2)

    Application Number Priority Date Filing Date Title
    DE19900924 1999-01-13
    DE19900924A DE19900924A1 (en) 1999-01-13 1999-01-13 Device for cleaning the knife ring of a knife ring chipper

    Publications (3)

    Publication Number Publication Date
    EP1020265A2 EP1020265A2 (en) 2000-07-19
    EP1020265A3 EP1020265A3 (en) 2004-04-21
    EP1020265B1 true EP1020265B1 (en) 2005-09-14

    Family

    ID=7894071

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP00100174A Revoked EP1020265B1 (en) 1999-01-13 2000-01-11 Apparatus for cleaning the knife ring in a knife ring cutter

    Country Status (4)

    Country Link
    EP (1) EP1020265B1 (en)
    AT (1) ATE304433T1 (en)
    DE (2) DE19900924A1 (en)
    ES (1) ES2247963T3 (en)

    Families Citing this family (3)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    DE202021003040U1 (en) 2021-09-26 2023-01-11 Dieffenbacher GmbH Maschinen- und Anlagenbau Device for arming a knife ring of a knife ring flaker
    DE102021004822A1 (en) 2021-09-26 2023-03-30 B. Maier Zerkleinerungstechnik Gmbh Method and device for arming a knife ring of a knife ring flaker
    DE102021004825A1 (en) 2021-09-26 2023-03-30 B. Maier Zerkleinerungstechnik Gmbh Device and method for servicing a knife ring of a knife ring flaker

    Family Cites Families (3)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    DE3247629C1 (en) 1982-12-23 1984-03-22 Maschinenfabrik B.Maier GmbH & Co KG, 4800 Bielefeld Blade ring-type chip shredder - has chip-removing air flow produced by auxiliary rotor vanes in duct axially adjacent to chip outlet duct
    DE19518354C2 (en) * 1995-05-19 1997-02-27 Pallmann Kg Maschf Method and device for automatically changing ring-shaped shredding tools on shredding machines, in particular knife rings for wood-cutting machines
    DE19629668C1 (en) * 1996-07-23 1998-01-02 Pallmann Kg Maschf Method and device for resharpening knives for shredding machines, in particular chipping knives for wood

    Also Published As

    Publication number Publication date
    ATE304433T1 (en) 2005-09-15
    EP1020265A2 (en) 2000-07-19
    DE50011141D1 (en) 2005-10-20
    DE19900924A1 (en) 2000-07-20
    EP1020265A3 (en) 2004-04-21
    ES2247963T3 (en) 2006-03-16

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