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DE19904345A1 - Device for sharpening cutters' knives - Google Patents

Device for sharpening cutters' knives

Info

Publication number
DE19904345A1
DE19904345A1 DE19904345A DE19904345A DE19904345A1 DE 19904345 A1 DE19904345 A1 DE 19904345A1 DE 19904345 A DE19904345 A DE 19904345A DE 19904345 A DE19904345 A DE 19904345A DE 19904345 A1 DE19904345 A1 DE 19904345A1
Authority
DE
Germany
Prior art keywords
grinding
knives
outlet
medium
channel
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.)
Ceased
Application number
DE19904345A
Other languages
German (de)
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
Priority to DE19904345A priority Critical patent/DE19904345A1/en
Priority to DE50009889T priority patent/DE50009889D1/en
Priority to EP00100061A priority patent/EP1025956B1/en
Priority to AT00100061T priority patent/ATE291990T1/en
Priority to JP2000024346A priority patent/JP2000254841A/en
Priority to BR0000248-8A priority patent/BR0000248A/en
Priority to PL00338209A priority patent/PL338209A1/en
Priority to KR1020000005504A priority patent/KR20000057930A/en
Publication of DE19904345A1 publication Critical patent/DE19904345A1/en
Ceased legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B3/00Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools
    • B24B3/36Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of cutting blades
    • B24B3/363Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of cutting blades of blades mounted on a turning drum
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B3/00Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools
    • B24B3/36Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of cutting blades
    • B24B3/52Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of cutting blades of shear blades or scissors
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B57/00Devices for feeding, applying, grading or recovering grinding, polishing or lapping agents
    • B24B57/02Devices for feeding, applying, grading or recovering grinding, polishing or lapping agents for feeding of fluid, sprayed, pulverised, or liquefied grinding, polishing or lapping agents
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24DTOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D7/00Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting otherwise than only by their periphery, e.g. by the front face; Bushings or mountings therefor
    • B24D7/10Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting otherwise than only by their periphery, e.g. by the front face; Bushings or mountings therefor with cooling provisions

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Crushing And Pulverization Processes (AREA)
  • Crushing And Grinding (AREA)

Abstract

The grinding device is pot-shaped. It has a grinding ring (4.3) in the region of the pot edge. It has at least one channel (5.1, 5.2, 5.3) to supply cutting fluid. This channel has an inlet and an outlet. The outlet is radially inside the grinding ring. The outlet is in the region of the grinding ring, so delivers cutting fluid directly to the blade.

Description

Die Erfindung betrifft eine Vorrichtung zum Schleifen der Messer von Zerspanern. Solche Zerspaner dienen dem Zerspanen von Hackschnitzeln zu Spänen, die industriell weiterverarbeitet werden können, beispielsweise als Ausgangsmaterial für Spanplatten. Siehe beispielsweise EP 0 626 234 A2.The invention relates to a device for grinding the knives of Machining. Such chippers are used for cutting wood chips Chips that can be processed industrially, for example as Starting material for chipboard. See for example EP 0 626 234 A2.

Ein großes Problem bei solchen Zerspanern besteht in der relativ geringen Standzeit der Messer. Aufgrund des Verschleißes müssen die Messer bereits nach wenigen Stunden Betriebsdauer ausgetauscht werden, d. h. mehrmals pro Arbeitsschicht. Das Einbauen neuer, scharfer Messer erfordert einen besonderen Aufwand. Die angestrebte Spandicke ergibt sich nämlich aus dem Abstand des Messers gegenüber den sogenannten Verschleißplatten, die ihrerseits Bestandteil des Messerkranzes sind. Daraus folgt, daß das Austauschen stumpfer Messer gegen scharfe Messer sehr Zeit- und kostenaufwendig ist. Insbesondere sind die Personalkosten hierfür hoch.A big problem with such chippers is the relatively small Knife service life. The knives must already be worn be replaced after a few hours of operation, d. H. multiple times per shift. The installation of new, sharp knives requires one special effort. The desired chip thickness results from the distance of the knife from the so-called wear plates, the in turn are part of the knife ring. It follows that the Replacing blunt knives with sharp knives very time and is expensive. In particular, the personnel costs for this are high.

Es ist bekannt, Schleifmessern beim Schleifprozeß ein Kühl- und Schmiermittel zuzuführen, um das Schleifen effizienter zu machen. Dies hat jedoch bisher nicht das gewünschte Ergebnis gebracht. Der Schleifprozeß kann wegen der anfallenden Wärmemenge nur relativ langsam durchgeführt werden.It is known to use a cooling and grinding knives in the grinding process Add lubricant to make grinding more efficient. this has However, so far the desired result has not been achieved. The grinding process can only be carried out relatively slowly due to the amount of heat generated become.

Der Erfindung liegt die Aufgabe zugrunde, eine Vorrichtung zum Schleifen der Messer von Zerspanern derart zu gestalten, daß der Schleifprozeß effizienter durchgeführt werden kann.The invention has for its object a device for grinding the To design cutters' knives in such a way that the grinding process becomes more efficient can be carried out.

Diese Aufgabe wird durch die Merkmale von Anspruch 1 gelöst.This object is solved by the features of claim 1.

Der Erfinder hat erkannt, daß durch die erfindungsgemäße Gestaltung der Schleifvorrichtung das Medium zum Kühlen und zum Schmieren mit hoher Geschwindigkeit an die Arbeitsstelle der Schleifvorrichtung herangeführt wird. Durch die Zentrifugalkraft der Schleifvorrichtung wird nicht nur die Strömungsgeschwindigkeit des Mediums erhöht, sondern auch der Strahldruck des Mediums, so daß dies auch wirklich alle Flächenelemente des zu schleifenden Messers erfaßt. Auf diese Weise läßt sich der Schleifprozeß rascher und effizienter durchführen.The inventor has recognized that the design of the Grinding device the medium for cooling and for lubrication with high  Speed is brought up to the working point of the grinding device. Due to the centrifugal force of the grinding device, not only the Flow rate of the medium increases, but also that of Jet pressure of the medium, so that this is really all surface elements of the knife to be grinded. In this way, the grinding process perform faster and more efficiently.

Die Erfindung ist anhand der Zeichnung näher erläutert.The invention is explained in more detail with reference to the drawing.

Fig. 1 zeigt eine Vorrichtung zum Schleifen von Messern eines Zerspaners. Der Zerspaner selbst ist hier nicht dargestellt. Fig. 1 shows a device for sharpening knives of a chipper. The chipper itself is not shown here.

Die Schleifstation 1 ist auf Rollen 1.2 relativ zum Zerspaner verfahrbar, derart, daß ein Messerkorb am Zerspaner in Empfang genommen und von diesem hinwegtransportiert werden kann, zur Arbeitsposition der Schleifstation 1. Im dargestellten Ausführungsbeispiel ist ein Messerkorb 2 in die Schleifstation 1 eingesetzt. Er ruht auf Rollen 1.3, so daß er in der Schleifstation 1 um seine eigene Achse getaktet werden kann.The grinding station 1 can be moved on rollers 1.2 relative to the chipper, in such a way that a knife basket can be received at the chipper and transported away from it to the working position of the grinding station 1 . In the exemplary embodiment shown, a knife basket 2 is inserted into the grinding station 1 . It rests on rollers 1.3 so that it can be clocked about its own axis in the grinding station 1 .

Der Messerkorb 2 weist eine Vielzahl von Messerpaketen 3 auf, die am besten aus Fig. 4 erkennbar sind. Man sieht dort jeweils einen Tragklotz 3.1, eine Klemmplatte 3.2, ein zwischen diesen beiden befindliches Messer 3.3, eine Spannschraube 3.4 sowie eine Verschleißplatte 3.5.The knife basket 2 has a multiplicity of knife packs 3 , which can best be seen from FIG. 4. One can see there a support block 3.1 , a clamping plate 3.2 , a knife 3.3 located between these two, a clamping screw 3.4 and a wear plate 3.5 .

Das entscheidende Element der gesamten Vorrichtung ist eine Schleifeinrichtung 4. Diese ist aus Fig. 1 erkennbar, aber noch genauer aus Fig. 2.The decisive element of the entire device is a grinding device 4 . This can be seen from FIG. 1, but more precisely from FIG. 2.

Die Schleifeinrichtung 4 ist im wesentlichen topfförmig. The grinding device 4 is essentially cup-shaped.

Wie man aus Fig. 2 und Fig. 3 erkennt, weist die Schleifeinrichtung 4 einen Adapter 1, eine Schleifscheibe 4.2 und einen daran angesetzten Schleifring 4.3 auf.As seen from Fig. 2 and Fig. 3, the grinding device 4 to an adapter 1, a grinding wheel 4.2 and a slip ring attached thereto 4.3.

Der Schleifring 4.3 liegt an einem Messer 2.1 an, dessen Schneide geschliffen wird.The slip ring 4.3 rests on a knife 2.1 , the cutting edge of which is ground.

Dem Adapter 4.1 ist eine Leitung 5.2 zum Heranführen eines Kühl- und Schmiermediums zugeordnet. Man erkennt einen Kanal, der aus den Kanalabschnitten 5.2 im Adapter 4.1 und 5.3 in der Schleifscheibe 4.2 zusammengesetzt ist. Hierdurch wird Medium von einem radial innenliegenden Punkt radial nach außen auf die Schneide des Messers 2.1 geleitet.A line 5.2 for introducing a cooling and lubricating medium is assigned to the adapter 4.1 . A channel can be seen which is composed of the channel sections 5.2 in the adapter 4.1 and 5.3 in the grinding wheel 4.2 . As a result, medium is guided radially outward from a point lying radially inward onto the cutting edge of the knife 2.1 .

Zur Erhöhung des Druckes sind mehrere Schaufeln 5.4 vorgesehen. Diese dienen der Druckerhöhung.Several blades 5.4 are provided to increase the pressure. These serve to increase the pressure.

Es versteht sich, daß sich die erfindungsgemäße Vorrichtung nicht nur zum Schleifen von Messern eines Zerspaners, sondern auch von anderen Teilen, beispielsweise von Verschleißplattern eines Zerspaners, einsetzen läßt.It is understood that the device according to the invention is not only for Grinding knives of a chipper, but also of other parts, for example, wear plates of a chipper can be used.

Claims (2)

1. Vorrichtung zum Schleifen von Messern (2.1) oder von Verschleißplatten eines Zerspaners;
  • 1. 1.1 die Vorrichtung ist im wesentlichen topfförmig;
  • 2. 1.2 die Vorrichtung weist im Bereich des Topfrandes einen Schleifring (4.3) auf;
  • 3. 1.3 die Vorrichtung weist wenigstens einen Kanal (5.1, 5.2, 5.3) zum Heranführen eines Kühl- und Schmiermediums auf;
  • 4. 1.4 der Kanal (5.1, 5.2, 5.3) weist einen Einlaß zum Zuführen des Mediums und einen Medium-Auslaß auf;
  • 5. 1.5 der Einlaß befindet sich radial innerhalb des Schleifringes (4.3);
  • 6. 1.6 der Auslaß befindet sich im Bereich des Schleifringes (4.3).
1. Device for grinding knives ( 2.1 ) or wear plates of a chipper;
  • 1. 1.1 the device is essentially pot-shaped;
  • 2. 1.2 the device has a slip ring ( 4.3 ) in the area of the pot rim;
  • 3. 1.3 the device has at least one channel ( 5.1 , 5.2 , 5.3 ) for introducing a cooling and lubricating medium;
  • 4. 1.4 the channel ( 5.1 , 5.2 , 5.3 ) has an inlet for supplying the medium and a medium outlet;
  • 5. 1.5 the inlet is located radially inside the slip ring ( 4.3 );
  • 6. 1.6 the outlet is in the area of the slip ring ( 4.3 ).
2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß zwischen Ein- und Auslaß des Kanales (5.1, 5.2, 5.3) schaufelartige Elemente (5.4) zum Steigern der Strömungsgeschwindigkeit des Mediums vorgesehen sind.2. Device according to claim 1, characterized in that between the inlet and outlet of the channel ( 5.1 , 5.2 , 5.3 ) scoop-like elements ( 5.4 ) are provided for increasing the flow rate of the medium.
DE19904345A 1999-02-03 1999-02-03 Device for sharpening cutters' knives Ceased DE19904345A1 (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
DE19904345A DE19904345A1 (en) 1999-02-03 1999-02-03 Device for sharpening cutters' knives
DE50009889T DE50009889D1 (en) 1999-02-03 2000-01-05 Device for grinding the blades of chippers
EP00100061A EP1025956B1 (en) 1999-02-03 2000-01-05 Device for dressing the knives of a crusher
AT00100061T ATE291990T1 (en) 1999-02-03 2000-01-05 DEVICE FOR GRINDING KNIFE KNIVES
JP2000024346A JP2000254841A (en) 1999-02-03 2000-02-01 Cutter griner for cutting machine
BR0000248-8A BR0000248A (en) 1999-02-03 2000-02-02 Device for sharpening the lights of chip lifting devices
PL00338209A PL338209A1 (en) 1999-02-03 2000-02-02 Device for grinding cutting edges or cutting tips of a shaving cutter
KR1020000005504A KR20000057930A (en) 1999-02-03 2000-02-03 Device for grinding the knives of metal-cutting tools

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19904345A DE19904345A1 (en) 1999-02-03 1999-02-03 Device for sharpening cutters' knives

Publications (1)

Publication Number Publication Date
DE19904345A1 true DE19904345A1 (en) 2000-08-31

Family

ID=7896302

Family Applications (2)

Application Number Title Priority Date Filing Date
DE19904345A Ceased DE19904345A1 (en) 1999-02-03 1999-02-03 Device for sharpening cutters' knives
DE50009889T Expired - Fee Related DE50009889D1 (en) 1999-02-03 2000-01-05 Device for grinding the blades of chippers

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE50009889T Expired - Fee Related DE50009889D1 (en) 1999-02-03 2000-01-05 Device for grinding the blades of chippers

Country Status (7)

Country Link
EP (1) EP1025956B1 (en)
JP (1) JP2000254841A (en)
KR (1) KR20000057930A (en)
AT (1) ATE291990T1 (en)
BR (1) BR0000248A (en)
DE (2) DE19904345A1 (en)
PL (1) PL338209A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011052531B4 (en) * 2011-08-09 2017-09-07 Siempelkamp Maschinen- Und Anlagenbau Gmbh Method and device for grinding knives and wear plates of a knife ring chipper

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108527066A (en) * 2018-04-16 2018-09-14 佛山市捷亚塑料五金制品有限公司 A kind of hardware making efficient sanding and polishing device of hardware kitchen tools

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0626234A2 (en) * 1993-05-18 1994-11-30 Pallmann Maschinenfabrik Gmbh + Co. Kg Method and device for dressing the knives of a crusher
US5674116A (en) * 1996-10-09 1997-10-07 Cmi International Inc. Disc with coolant passages for an abrasive machining assembly
DE19718681A1 (en) * 1997-05-02 1998-11-05 Maier Zerkleinerungstech Gmbh Knife ring chipper

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1652889C3 (en) * 1967-09-02 1974-01-10 Bayerische Maschinenfabrik F.J. Schlageter, 8400 Regensburg Segment face grinding wheel
DE2651879C2 (en) * 1976-11-13 1978-10-26 Hans 4980 Buende Sielemann Device for supplying coolant to the inside of a cup-shaped face grinding wheel
US4791760A (en) * 1987-07-09 1988-12-20 Corning Glass Works Grinding wheel coolant distributor
US5259148A (en) * 1991-11-12 1993-11-09 Wiand Ronald C Ring generator wheel with improved coolant flow

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0626234A2 (en) * 1993-05-18 1994-11-30 Pallmann Maschinenfabrik Gmbh + Co. Kg Method and device for dressing the knives of a crusher
US5674116A (en) * 1996-10-09 1997-10-07 Cmi International Inc. Disc with coolant passages for an abrasive machining assembly
DE19718681A1 (en) * 1997-05-02 1998-11-05 Maier Zerkleinerungstech Gmbh Knife ring chipper

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011052531B4 (en) * 2011-08-09 2017-09-07 Siempelkamp Maschinen- Und Anlagenbau Gmbh Method and device for grinding knives and wear plates of a knife ring chipper

Also Published As

Publication number Publication date
DE50009889D1 (en) 2005-05-04
ATE291990T1 (en) 2005-04-15
JP2000254841A (en) 2000-09-19
BR0000248A (en) 2000-09-05
KR20000057930A (en) 2000-09-25
EP1025956A1 (en) 2000-08-09
EP1025956B1 (en) 2005-03-30
PL338209A1 (en) 2000-08-14

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OP8 Request for examination as to paragraph 44 patent law
8131 Rejection