EP0875338A2 - Déchiqueteuse à lames-couronne - Google Patents

Déchiqueteuse à lames-couronne Download PDF

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Publication number
EP0875338A2
EP0875338A2 EP98102850A EP98102850A EP0875338A2 EP 0875338 A2 EP0875338 A2 EP 0875338A2 EP 98102850 A EP98102850 A EP 98102850A EP 98102850 A EP98102850 A EP 98102850A EP 0875338 A2 EP0875338 A2 EP 0875338A2
Authority
EP
European Patent Office
Prior art keywords
grinding
knife
knife ring
knives
axis
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
EP98102850A
Other languages
German (de)
English (en)
Other versions
EP0875338A3 (fr
EP0875338B1 (fr
Inventor
Robert Loth
Rolf Dipl.-Ing. Ameling
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 EP0875338A2 publication Critical patent/EP0875338A2/fr
Publication of EP0875338A3 publication Critical patent/EP0875338A3/fr
Application granted granted Critical
Publication of EP0875338B1 publication Critical patent/EP0875338B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B3/00—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools
    • B24B3/36—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of cutting blades
    • B24B3/363—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of cutting blades of blades mounted on a turning drum
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B3/00—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools
    • B24B3/36—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of cutting blades
    • B24B3/368—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of cutting blades installed as an accessory on another machine

Definitions

  • the invention relates to a method and an apparatus for grinding the Knife of a knife ring chipper.
  • Knife ring chippers are used to create chips that are primarily used for Manufacture of chipboard to be used.
  • Such a Knife ring chipper has a knife ring.
  • This in turn includes numerous knife units.
  • Each knife unit has a support block that carries a knife and has a wear surface. The wear surface is facing a rotor which is rotatably mounted within the knife ring.
  • the knife ring is in turn surrounded by a housing.
  • the knives are very exposed to wear. you have one Tool life that only counts after a few hours. Therefore, you have to frequent be reground.
  • the knife ring can be extended from the chipper and inserted into a frame. It is rotatably mounted in it. It encloses in this position for the purpose of grinding a grinding unit.
  • the grinding unit performs for the purpose of Grinding a translatory movement parallel to the knife ring axis, while the knife ring rotates slowly around its own axis executes.
  • the grinding wheel lies one after the other on its face the knives. Due to its translational movement, it wanders in the Over a period of approx. 1 to 2 hours along the knife ring axis from one end to the other end.
  • the provision of a plurality of knives that mechanically become one Knife group coupled together is advantageous in that it is the same several knives are sharpened in one translatory movement can. For example, if there are four grinding tools, four can Knives can be sharpened at the same time. After grinding these four Knife, the knife ring is rotated by such a radian measure that the grinding tools in the positions of the next four knives are located.
  • Chip quality depends on numerous parameters, including that Knife board, the wood quality, but also the quality of the ship. Here has shown that the chip quality no longer meets the requirements. The confusing multitude of parameters always gives rise to reasons Speculations to find interference. This is not yet in the necessary dimensions succeeded.
  • the invention has for its object a method and a Specify device for sharpening knives when sharpening knives inside the knife ring to increase the chip quality.
  • the inventor has recognized that the quality of the cut of the knives is one has a decisive influence on the chip quality, and that with the so far Known methods and devices to the grinding quality of knives Knife shows significant deviations, leading to corresponding Deviations in chip quality leads.
  • a certain knife creates a certain chip quality, and another knife a different one Chip quality.
  • the quality of the cut depends on Grinding tool.
  • the inventor also recognized that when editing a and the same knife with several grinding tools or unfavorable - overlay the properties of the individual grinding tools and mix to some extent so that the quality of the cut of all Knife is the same. Accordingly, the quality of the chips is one certain knife produces, equal to the chip quality of the other knives.
  • a certain knife is not reground by a single grinding tool, but the grinding of the single knife is the result of sharpening them all Grinding tools of a group of grinding tools.
  • the conditioning device 1 is on rollers 1.2 relative to the chipper movable, such that a knife basket is received at the chipper and can be transported away to the work position of the Conditioning device 1.
  • a Knife basket 2 inserted into the conditioning device 1. It rests on rollers 1.3 so that it is in the conditioning device 1 about its own axis can be clocked.
  • the knife basket 2 has a plurality of knife packs 3, which are the best can be seen from Figure 3.
  • the crucial element of the entire device is the tool, in in the present case, a grinding device 4.
  • the grinding device 4 comprises a plurality of grinding wheels 4.1. In the present case there are four Grinding wheels. These four grinding wheels sit on a common one Wave 4.2. This can be driven by means of a motor 4.3 and a Bevel gear 4.4. A spindle drive can also be seen Stepper motor 4.5.
  • Another drive is provided, of which only shaft 5 is represented symbolically.
  • This drive creates a movement of the Grinding device 4 parallel to the axis of the knife body 2 and at the same time parallel to the cutting edges of the knives 3.3.
  • the grinding of a each knife with a single outward or outward movement of the grinding device 4 be accomplished. But it is also possible to have two or more movements in to execute one and the other.
  • the grinding device 4 can have a different number of grinding wheels 4.1 have as the number of four grinding wheels shown here. So needs only one grinding wheel to be provided. But it can also more than four grinding wheels can be provided.
  • the grinding wheels 4.1 are in Radial planes run through the center of the knife basket 2 run. This applies to both the case of a single grinding wheel per Grinding device 4, as well as in the event that a grinding device 4 a Has a plurality of grinding wheels.
  • Fig. 4 shows an embodiment of the invention in which Cup wheels are worked as grinding tools.
  • Imagine there shown grinding tools 4.1 has the shape of a pot that against the knife edge to be sharpened is open; is the bottom of the pot thus facing away from the knife edge. Is ground with the Pot rim.
  • the axis of rotation of each cup disk 4.1 runs essentially radial to the knife basket. By a deviation from the radial, the Knife ground a clearance angle, as shown in Fig. 4.
  • every grinding tool can grind every knife proportionately. It but it is also possible that a single grinding tool one and the same Knife completely grinded.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Milling, Broaching, Filing, Reaming, And Others (AREA)
EP98102850A 1997-05-02 1998-02-19 Déchiqueteuse à lames-couronne Expired - Lifetime EP0875338B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19718681A DE19718681A1 (de) 1997-05-02 1997-05-02 Messerringzerspaner
DE19718681 1997-05-02

Publications (3)

Publication Number Publication Date
EP0875338A2 true EP0875338A2 (fr) 1998-11-04
EP0875338A3 EP0875338A3 (fr) 2000-05-17
EP0875338B1 EP0875338B1 (fr) 2003-01-15

Family

ID=7828505

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98102850A Expired - Lifetime EP0875338B1 (fr) 1997-05-02 1998-02-19 Déchiqueteuse à lames-couronne

Country Status (5)

Country Link
US (1) US6036588A (fr)
EP (1) EP0875338B1 (fr)
BR (1) BR9801515A (fr)
DE (1) DE19718681A1 (fr)
ES (1) ES2187842T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1025956A1 (fr) * 1999-02-03 2000-08-09 B. Maier Zerkleinerungstechnik GmbH Dispositif pour dresser les couteaux d'un broyeur

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19900566B4 (de) * 1999-01-09 2005-03-24 B. Maier Zerkleinerungstechnik Gmbh Messerring-Zerspaner zum Zerspanen von Hackschnitzeln
DE102011052529A1 (de) 2011-08-09 2013-02-14 Siempelkamp Maschinen- Und Anlagenbau Gmbh & Co. Kg Verfahren zum Schärfen, insbesondere Nachschärfen von Messern eines Messerringzerspaners
DE102021004822A1 (de) 2021-09-26 2023-03-30 B. Maier Zerkleinerungstechnik Gmbh Verfahren und Vorrichtung zur Rüstung eines Messerrings eines Messerringzerspaners
DE102021004825A1 (de) 2021-09-26 2023-03-30 B. Maier Zerkleinerungstechnik Gmbh Vorrichtung und Verfahren zur Wartung eines Messerrings eines Messerringzerspaners
DE202021003040U1 (de) 2021-09-26 2023-01-11 Dieffenbacher GmbH Maschinen- und Anlagenbau Vorrichtung zur Rüstung eines Messerrings eines Messerringzerspaners

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0626234A2 (fr) * 1993-05-18 1994-11-30 Pallmann Maschinenfabrik Gmbh + Co. Kg Procédé et dispositif pour dresser les couteaux d'un broyeur
DE19641810C1 (de) * 1996-10-10 1997-11-27 Maier Zerkleinerungstech Gmbh Verfahren und Vorrichtung zum Schleifen der Messer von Zerspanern

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5377454A (en) * 1992-05-01 1995-01-03 The Gleason Works Method of truing and angling cutter blades by sharpening

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0626234A2 (fr) * 1993-05-18 1994-11-30 Pallmann Maschinenfabrik Gmbh + Co. Kg Procédé et dispositif pour dresser les couteaux d'un broyeur
DE19641810C1 (de) * 1996-10-10 1997-11-27 Maier Zerkleinerungstech Gmbh Verfahren und Vorrichtung zum Schleifen der Messer von Zerspanern

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1025956A1 (fr) * 1999-02-03 2000-08-09 B. Maier Zerkleinerungstechnik GmbH Dispositif pour dresser les couteaux d'un broyeur

Also Published As

Publication number Publication date
BR9801515A (pt) 1999-09-28
DE19718681A1 (de) 1998-11-05
EP0875338A3 (fr) 2000-05-17
US6036588A (en) 2000-03-14
EP0875338B1 (fr) 2003-01-15
ES2187842T3 (es) 2003-06-16

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