EP0744257B1 - Déchiqueteuse pour coupeaux de bois - Google Patents

Déchiqueteuse pour coupeaux de bois Download PDF

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Publication number
EP0744257B1
EP0744257B1 EP96106168A EP96106168A EP0744257B1 EP 0744257 B1 EP0744257 B1 EP 0744257B1 EP 96106168 A EP96106168 A EP 96106168A EP 96106168 A EP96106168 A EP 96106168A EP 0744257 B1 EP0744257 B1 EP 0744257B1
Authority
EP
European Patent Office
Prior art keywords
knife
rotor
wearing
wearing surface
chopper
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
EP96106168A
Other languages
German (de)
English (en)
Other versions
EP0744257A3 (fr
EP0744257A2 (fr
Inventor
Robert Loth
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.)
B Maier Zerkleinerungstechnik GmbH
Original Assignee
B Maier Zerkleinerungstechnik GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by B Maier Zerkleinerungstechnik GmbH filed Critical B Maier Zerkleinerungstechnik GmbH
Publication of EP0744257A2 publication Critical patent/EP0744257A2/fr
Publication of EP0744257A3 publication Critical patent/EP0744257A3/fr
Application granted granted Critical
Publication of EP0744257B1 publication Critical patent/EP0744257B1/fr
Anticipated expiration legal-status Critical
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27L—REMOVING BARK OR VESTIGES OF BRANCHES; SPLITTING WOOD; MANUFACTURE OF VENEER, WOODEN STICKS, WOOD SHAVINGS, WOOD FIBRES OR WOOD POWDER
    • B27L11/00—Manufacture of wood shavings, chips, powder, or the like; Tools therefor
    • B27L11/005—Tools therefor

Definitions

  • the invention relates to a chipper for wood chips according to the preamble of claim 1.
  • Chippers are known in a variety of embodiments become. For example, reference is made to DE-U-9307371. Such Chippers are fed with a certain size of wood chips with the aim of breaking down the wood chips into chips, mainly from the Chipboard industry are processed.
  • DE-A-21 31 262 describes a chipper with knife carriers, the plane Have wear surfaces. This results in a front of the knife narrowing gap.
  • the Wear plates According to the circular shape of the flight circle of the rotor, the Wear plates rounded on their surface facing the rotor, so that they are also circular in their entirety.
  • the annular gap between the Wear surface of the support block and the flight circle of the rotor a constant width.
  • the invention has for its object the construction of chippers of the type mentioned in such a way that the machining process in effect the piece of wood that is cut is less compressed, more space for chip removal, better division and less Pressures is exposed. With success, with improved chip quality enforce higher performance with less energy.
  • the inventor has recognized that the gap between the flight circle of the rotor and the entirety of the wear surfaces of the support blocks must be constant, but that such hoggers also work properly work when the wear surfaces are completely flat and the gap between Flight circle of the rotor and guide surface, guide surface or the like. Accordingly is variable around the perimeter, and also the middle of the planes Wear surface between two knife packages tangential to the flight circle is aligned.
  • the width of the annular gap between the flight circle of the rotor and the Wear areas do not remain constant over the circumference, but changes. Are the wear surfaces almost flat or even completely flat, so it comes immediately after the single knife - in Rotation direction of the rotor seen - first to a relaxation, because there the annular gap initially has a slightly larger width. The distance takes then from about to the middle of the wear surface and approaches the value Zero to finally gain weight again. It thus finds a very quick one Alternating from compressing the wood chips and relaxing again and realign the wood chips before the new cutting process, because the is no longer available and the cutlet hits the knife edge freely. This has proven to be extremely advantageous. This is because it is possible to increase the chip quality and the throughput and at the same time the Reduce energy consumption.
  • the chips with the chipper according to the invention are of ongoing quality. When the rotor rotates there is no congestion, which had to be feared at first.
  • FIG. 1 shows a view of a chipper from a reduced view front, i.e. on the side on which the housing cover with the inlet for the wood chips.
  • Figure 2 shows on an enlarged scale in an axial section and in Side view of the same chipper.
  • FIG. 3 shows a detail from FIG. 2 in an enlarged representation.
  • Figure 4 shows a representation similar to that of Figure 3, but with a somewhat different training of the knife pack.
  • the chipper comprises a rotor 1 which of a shaft 2 is driven.
  • the rotor 1 contains a ring of axially parallel wings 3.
  • a knife basket with also axially parallel arranged knives 4 surrounds the rotor 1.
  • Rotor 1 and knife basket are in turn arranged in a housing 5 and together by this enclosed.
  • Housing 5 has an inlet 6 for the to be supplied Wood chips and an outlet for the finished wood chips.
  • Figures 3 and 4 are two in an axial section Knife packages shown. These two knife packages are part of each the knife ring of the machine.
  • Each knife pack is constructed as follows: A support block 10 enters Cutting knife 11, which by means of a clamping plate 12 and a screw 13th is attached to the support block 10.
  • Each support block 10 has a wear surface 10.1. It is crucial that this wear surface 10.1 facing the machine axis approximately are flat and therefore not concentric as in the prior art.
  • the wear surface 10.1 in the case of FIG. 3 is made of a Wear plate 10.2 formed, which in turn attached to the rest of the support block 10 is.
  • the wear surface 10.1 is made of a Wear layer formed by applying a wear layer, preferably by cladding or spraying and subsequent Loops was created.
  • a stick knife 14 is provided, that on the opposite side of the cutting knife 11 Support block 10 is attached, and that with the cutting knife neighboring knife package works together.
  • the embodiment according to Figure 4 is a stickless embodiment.

Landscapes

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

Claims (4)

  1. Coupeuse à copeaux pour l'obtention de viande hachée, avec un rotor (1) qui présente une couronne d'ailettes (3) parallèles,
    avec un anneau de lames (4) présentant une pluralité de paquets de lames (11) répartis sur sa circonférence,
    chaque paquet de lames comprenant un support de lame (10) qui présente une surface d'usure (10.1) orientée vers le rotor et porte un couteau (11) dont le tranchant est au moins approximativement parallèle à l'axe et orienté vers le rotor, les surfaces d'usure des supports de lame s'écartant de la forme circulaire de telle sorte que la largeur de l'espace annulaire entre le cercle de rotation du rotor (1) et les surfaces d'usure (10.1) se modifie dans le sens de la circonférence, caractérisé en ce que la surface d'usure est sensiblement plane et le milieu de la surface d'usure plane entre deux paquets de couteaux est tangent par rapport au cercle de rotation.
  2. Coupeuse à copeaux selon la revendication 1, caractérisée en ce que la surface d'usure (10.1) est formée sur une plaque d'usure (10.2) fixée sur le support de lame (10).
  3. Coupeuse à copeaux selon la revendication 1 ou 2, caractérisée en ce que la surface d'usure (10.1) est produite par ajout de soudure puis meulage pour obtenir une surface plane.
  4. Coupeuse à copeaux selon l'une quelconque des revendications 1 à 3, caractérisée en ce que la surface d'usure (10.1) est produite par dépôt en phase vapeur ou enduction, par exemple pour produire un revêtement céramique ou un revêtement chromé.
EP96106168A 1995-05-23 1996-04-19 Déchiqueteuse pour coupeaux de bois Expired - Lifetime EP0744257B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19518609 1995-05-23
DE19518609A DE19518609C1 (de) 1995-05-23 1995-05-23 Zerspaner für Hackschnitzel

Publications (3)

Publication Number Publication Date
EP0744257A2 EP0744257A2 (fr) 1996-11-27
EP0744257A3 EP0744257A3 (fr) 1997-06-11
EP0744257B1 true EP0744257B1 (fr) 2000-09-13

Family

ID=7762466

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96106168A Expired - Lifetime EP0744257B1 (fr) 1995-05-23 1996-04-19 Déchiqueteuse pour coupeaux de bois

Country Status (3)

Country Link
EP (1) EP0744257B1 (fr)
AT (1) ATE196274T1 (fr)
DE (2) DE19518609C1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101048066B (zh) * 2004-10-25 2012-11-21 英诺泰克控股商贸有限两合公司 食品制造加工设备

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0879680A3 (fr) * 1997-04-22 1999-11-03 Heinrich Prof. Dr. Ing. Feichtinger Dispositif de fixation des couteaux dans un rotor de coupe
DE19902417A1 (de) * 1998-05-16 1999-11-25 Maier Zerkleinerungsanlage Gmb Messerringzerspaner
DE19921597C1 (de) * 1999-05-07 2000-07-27 Maier Zerkleinerungsanlage Gmb Messerring-Zerspaner zum Zerspanen von Hackschnitzeln
FI112185B (fi) 1999-05-28 2003-11-14 Andritz Patentverwaltung Laite hakkeen ylisuuren jakeen pienentämiseksi
DE10058626A1 (de) * 2000-11-25 2002-06-06 Maier Zerkleinerungstech Gmbh Verfahren und Vorrichtung zum Erzeugen von Spänen aus Holz
WO2003055657A1 (fr) * 2001-12-29 2003-07-10 Leon Terlecki Support de couteau segmente de decoupeuse a bois
US8161856B2 (en) * 2006-04-18 2012-04-24 Urschel Laboratories, Inc. Apparatus for cutting food product
DE102006053033A1 (de) * 2006-11-10 2008-05-15 Loth, Robert, Dipl.-Ing. Messerringzerspaner und Verschleißplatte für einen solchen
DE102015003520B4 (de) 2015-03-20 2016-11-24 B. Maier Zerkleinerungstechnik Gmbh Verfahren und Vorrichtung zum Schleifen von Messern und Verschleißplatten eines Messerringes
DE202015002132U1 (de) 2015-03-20 2016-05-23 B. Maier Zerkleinerungstechnik Gmbh Vorrichtung zum Schleifen von Messern und Verschleißplatten des Messerringes eines Messerringzerspaners

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT295833B (de) * 1970-06-26 1972-01-25 Gerhard Dr Ing Maier Vorrichtung zum Zerspanen von kleinstückigem Material, insbesondere vorzerkleinertem Holz
DE7031361U (de) * 1970-08-21 1971-04-01 Maier Dr Gerhard Zerspanrotor fuer rotationszerspaner.
DE7609913U1 (de) * 1976-03-31 1976-07-29 Pallmann Kg Maschinenfabrik, 6660 Zweibruecken Verschleisschuh
DE2628764C3 (de) * 1976-06-26 1978-12-07 Gebr. Kloeckner Gmbh & Co, 5239 Hirtscheid Messerbefestigung in einem Messerring-Zerspaner für Hackschnitzel
DE3146861A1 (de) * 1981-11-26 1983-06-01 Hombak Maschinenfabrik Gmbh & Co Kg, 6550 Bad Kreuznach Verschleissschuh fuer einen messerringzerspaner
DE3517236A1 (de) * 1985-05-13 1986-11-13 Pallmann Maschinenfabrik GmbH & Co KG, 6660 Zweibrücken Messerhalterung an messerringen durch fliehkeil
US4972888A (en) * 1989-11-14 1990-11-27 Acrowood Corporation Blade-carrying drum assembly for chip slicing machines
AT401478B (de) * 1990-10-17 1996-09-25 Boehler Ybbstalwerke Auswechselbarer verschleissteil
DE4039217C2 (de) * 1990-12-08 1993-11-11 Willi Jacobs Rundschaftmeißel
DE9307371U1 (de) * 1992-11-28 1994-01-13 B. Maier Zerkleinerungstechnik Gmbh, 33649 Bielefeld Zerspaner für Hackschnitzel
EP0705668A1 (fr) * 1994-08-12 1996-04-10 B. Maier Zerkleinerungstechnik GmbH Déchiqueteuse à lames-couronne

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101048066B (zh) * 2004-10-25 2012-11-21 英诺泰克控股商贸有限两合公司 食品制造加工设备

Also Published As

Publication number Publication date
DE19518609C1 (de) 1996-02-01
EP0744257A3 (fr) 1997-06-11
ATE196274T1 (de) 2000-09-15
DE59605865D1 (de) 2000-10-19
EP0744257A2 (fr) 1996-11-27

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