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EP1025956A1 - Device for dressing the knives of a crusher - Google Patents

Device for dressing the knives of a crusher Download PDF

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Publication number
EP1025956A1
EP1025956A1 EP00100061A EP00100061A EP1025956A1 EP 1025956 A1 EP1025956 A1 EP 1025956A1 EP 00100061 A EP00100061 A EP 00100061A EP 00100061 A EP00100061 A EP 00100061A EP 1025956 A1 EP1025956 A1 EP 1025956A1
Authority
EP
European Patent Office
Prior art keywords
medium
grinding
pot
channel
outlet
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
EP00100061A
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German (de)
French (fr)
Other versions
EP1025956B1 (en
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 EP1025956A1 publication Critical patent/EP1025956A1/en
Application granted granted Critical
Publication of EP1025956B1 publication Critical patent/EP1025956B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • B24B3/52—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of cutting blades of shear blades or scissors
    • 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
    • B24B57/00—Devices for feeding, applying, grading or recovering grinding, polishing or lapping agents
    • B24B57/02—Devices for feeding, applying, grading or recovering grinding, polishing or lapping agents for feeding of fluid, sprayed, pulverised, or liquefied grinding, polishing or lapping agents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D7/00—Bonded 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
    • B24D7/10—Bonded 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

Definitions

  • the invention relates to a device for grinding the knives of Machining.
  • 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.
  • 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, i.e. 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.
  • 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.
  • 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.
  • the grinding device according to the invention is also suitable for grinding so-called clearance angles.
  • FIG. 1 shows a device for grinding knives of a chipper. The chipper itself is not shown here.
  • the grinding station 1 can be moved on rollers 1.2 relative to the chipper, such that a knife basket at the chipper and received by this can be transported away to the working position of the grinding station 1.
  • a knife basket 2 in the grinding station 1 used. It rests on rollers 1.3, so that it is in its grinding station 1 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 4.
  • the crucial element of the entire device is one Grinding device 4. This can be seen in FIG. 1, but is more precise Fig. 2.
  • the grinding device 4 is essentially cup-shaped.
  • the grinding device 4 has one Adapter 4.1, a grinding wheel 4.2 and a slip ring attached to it 4.3 on.
  • the slip ring 4.3 rests on a knife 2.1, the cutting edge of which is ground becomes.
  • the adapter 4.1 is a line 5.1 for introducing a cooling and Lubricant assigned. You can see a channel that consists of the Channel sections 5.2 in the adapter 4.1 and 5.3 in the grinding wheel 4.2 is composed. This makes the medium of a radial inner point radially outwards on the cutting edge of the knife 2.1 headed.
  • blades 5.4 are provided to increase the pressure. This serve to increase the pressure.
  • the blades 5.4 can in the manner of Pump blades can be designed.
  • the cooling and lubricating medium therefore takes the following route: it arrives through line 5.1 first into channel section 5.2. At the transition from the line 5.1 to channel section 5.2 is due to the centrifugal force Acceleration takes place, and thus an increase in pressure.
  • channel section 5.3 the medium is then essentially in directed axially parallel and thrown against the grinding wheel, supported by the blades 5.4
  • 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.

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, i.e. 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. Der Schleifprozeß kann wegen der anfallenden Wärmemenge nur relativ langsam durchgeführt werden. Die bisher bekannten Vorrichtungen haben zwar ihren Zweck erfüllt, erscheinen jedoch immer noch verbesserungsfähig.It is known to use a cooling and grinding knives in the grinding process Add lubricant to make grinding more efficient. The Grinding process can be relatively slow because of the amount of heat be performed. The previously known devices have their Purpose fulfilled, but still seem to be in need of improvement.

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. Die erfindungsgemäße Schleifvorrichtung ist auch geeignet, sogenannte Freiwinkel anzuschleifen.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. The grinding device according to the invention is also suitable for grinding so-called clearance angles.

Wesentlich ist in jedem Falle, dass das Kühl- und Schmiermedium unmittelbar und ganz konzentriert auf die Schneiden der Messer geleitet wird, im Gegensatz zu einem flächigen Auftrag, so wie dies beispielsweise bei US 5 674 116 der Fall ist. Dort wird ein Kühlmittel durch eine zentrale Hohlwelle hindurchgeführt und über Radialkanäle in der Schleifscheibe nach außen geleitet. Gemäß der Erfindung hingegen ist der Einlaß des Zufuhrkanales des Mediums jedenfalls radial außerhalb des Zentrums der Vorrichtung angeordnet. Dies hat den Vorteil, daß die Schleifrückstände nach ihrem Abtragen nur einen kurzen Weg zurücklegen müssen und somit schnell hinweggespült werden.It is essential in any case that the cooling and lubricating medium immediately and very focused on the cutting of the knives Contrary to a two-dimensional order, such as this for example US 5 674 116 is the case. There is a coolant through a central Passed hollow shaft and through radial channels in the grinding wheel headed outside. According to the invention, however, the inlet of the In any case, the supply channel of the medium radially outside the center of the Device arranged. This has the advantage that the grinding residues after only have to travel a short distance and therefore quickly be washed away.

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.1 shows a device for grinding 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, such that a knife basket at the chipper and received by this can be transported away to the working position of the grinding station 1. Im The exemplary embodiment shown is a knife basket 2 in the grinding station 1 used. It rests on rollers 1.3, so that it is in its grinding station 1 own axis can be clocked.

Der Messerkorb 2 weist eine Vielzahl von Messerpaketen 3 auf, die am besten aus Figur 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 plurality of knife packs 3, which are the best can be seen from Figure 4. One can see there a supporting block 3.1, one Clamping plate 3.2, a knife 3.3 located between these two, one Tensioning screw 3.4 and a wear plate 3.5.

Das entscheidende Element der gesamten Vorrichtung ist eine Schleifeinrichtung 4. Diese ist aus Figur 1 erkennbar, aber noch genauer aus Fig. 2.The crucial element of the entire device is one Grinding device 4. This can be seen in FIG. 1, but is more precise 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 4.1, eine Schleifscheibe 4.2 und einen daran angesetzten Schleifring 4.3 auf.As can be seen from FIGS. 2 and 3, the grinding device 4 has one Adapter 4.1, a grinding wheel 4.2 and a slip ring attached to it 4.3 on.

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 becomes.

Dem Adapter 4.1 ist eine Leitung 5.1 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.The adapter 4.1 is a line 5.1 for introducing a cooling and Lubricant assigned. You can see a channel that consists of the Channel sections 5.2 in the adapter 4.1 and 5.3 in the grinding wheel 4.2 is composed. This makes the medium of a radial inner point radially outwards on the cutting edge of the knife 2.1 headed.

Zur Erhöhung des Druckes sind mehrere Schaufeln 5.4 vorgesehen. Diese dienen der Druckerhöhung. Die Schaufeln 5.4 können nach Art von Pumpenschaufeln gestaltet sein.Several blades 5.4 are provided to increase the pressure. This serve to increase the pressure. The blades 5.4 can in the manner of Pump blades can be designed.

Das Kühl- und Schmiermedium nimmt somit den folgenden Weg: es gelangt durch die Leitung 5.1 zunächst in den Kanalabschnitt 5.2. Beim Übergang von der Leitung 5.1 zu Kanalabschnitt 5.2 findet aufgrund der Zentrifugalkraft eine Beschleunigung statt, und damit eine Druckerhöhung.The cooling and lubricating medium therefore takes the following route: it arrives through line 5.1 first into channel section 5.2. At the transition from the line 5.1 to channel section 5.2 is due to the centrifugal force Acceleration takes place, and thus an increase in pressure.

Im Kanalabschnitt 5.3 wird das Medium sodann im wesentlichen in achsparalleler Richtung geleitet und gegen die Schleifscheibe geschleudert, unterstützt durch die Schaufeln 5.4In channel section 5.3, the medium is then essentially in directed axially parallel and thrown against the grinding wheel, supported by the blades 5.4

Die Unterteilung der Vorrichtung in die in den Figuren 2 und 3 dargestellten Teile ist aus einem anderen Grunde besonders vorteilhaft. Dadurch, daß der "Topf" aus dem Adapter 4.1 und der Schleifscheibe 4.2 zusammengebaut ist, wird die Handhabung sehr flexibel. Die Schleifscheibe 4.2 kann nämlich leicht ausgetauscht werden, beispielsweise bei Verschleiss des Schleifringes 4.3 oder wenn sich die Betriebsbedingungen aufgrund irgendwelcher Umstände ändern. Das Zusammenmontieren von Adapter 4.1 und Schleifscheibe 4.2 geht höchst einfach vor sich, beispielsweise mittels vier Schrauben. Irgendwelche Winkeleinstellungen der gesamten Einheit zwecks Erzielens eines bestimmten Freiwinkels bleiben vom Austausch der Schleifscheibe 4.2 unberührt.The division of the device into that shown in Figures 2 and 3 Parts is particularly advantageous for another reason. The fact that the "Pot" is assembled from the adapter 4.1 and the grinding wheel 4.2, handling becomes very flexible. The grinding wheel 4.2 can namely easily be replaced, for example if the slip ring 4.3 is worn or if the operating conditions change due to any circumstances to change. Assembling adapter 4.1 and grinding wheel 4.2 is very easy, for example using four screws. Any angle settings of the entire unit for the purpose of achieving a certain clearance angle remain from replacing the grinding wheel 4.2 untouched.

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 (5)

Vorrichtung zum Schleifen von Messern (2.1) oder von Verschleißplatten eines Zerspaners; 1.1 die Vorrichtung ist im wesentlichen topfförmig; 1.2 die Vorrichtung weist im Bereich des Topfrandes einen Schleifring (4.3) auf; 1.3 die Vorrichtung weist wenigstens einen Kanal (5.1, 5.2, 5.3) zum Heranführen eines Kühl- und Schmiermediums auf; 1.4 der Kanal (5.1, 5.2, 5.3) weist einen Einlaß zum Zuführen des Mediums und einen Medium-Auslaß auf; 1.5 der Medium-Auslass ist unmittelbar gegen die Schneide der Messer (2.1) gerichtet, um das Medium konzentriert auf die Schneiden zu leiten. Device for grinding knives (2.1) or wear plates of a chipper; 1.1 the device is essentially pot-shaped; 1.2 the device has a slip ring (4.3) in the area of the pot rim; 1.3 the device has at least one channel (5.1, 5.2, 5.3) for introducing a cooling and lubricating medium; 1.4 the channel (5.1, 5.2, 5.3) has an inlet for supplying the medium and a medium outlet; 1.5 the medium outlet is directed directly against the cutting edge of the knife (2.1) in order to direct the medium onto the cutting edges. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass der Einlass des Kanales (5.1, 5.2, 5.3) außerhalb des Zentrums des Topfes angeordnet ist.Apparatus according to claim 1, characterized in that the Inlet of the channel (5.1, 5.2, 5.3) outside the center of the pot is arranged. Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass sich der Einlass für das Medium auf einem kleineren Radius als der Auslass befindet.Device according to claim 1 or 2, characterized in that the inlet for the medium is on a smaller radius than that Outlet is located. Vorrichtung nach einem der Ansprüche 1 bis 3, 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.Device according to one of claims 1 to 3, characterized characterized in that between the inlet and outlet of the channel (5.1, 5.2, 5.3) shovel-like elements (5.4) to increase the Flow rate of the medium are provided. Vorrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass der Topf gebildet ist aus einem Adapter (4.1), der den Topfboden sowie einen Teil der Umfangswand bildet, und einer Schleifscheibe (4.2), die den übrigen Teil der Umfangswand bildet und einen Schleifring (4.3) trägt.Device according to one of claims 1 to 4, characterized characterized in that the pot is formed from an adapter (4.1), which forms the bottom of the pot and part of the peripheral wall, and a grinding wheel (4.2), which forms the remaining part of the peripheral wall and carries a slip ring (4.3).
EP00100061A 1999-02-03 2000-01-05 Device for dressing the knives of a crusher Expired - Lifetime EP1025956B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19904345A DE19904345A1 (en) 1999-02-03 1999-02-03 Device for sharpening cutters' knives
DE19904345 1999-02-03

Publications (2)

Publication Number Publication Date
EP1025956A1 true EP1025956A1 (en) 2000-08-09
EP1025956B1 EP1025956B1 (en) 2005-03-30

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP00100061A Expired - Lifetime EP1025956B1 (en) 1999-02-03 2000-01-05 Device for dressing the knives of a crusher

Country Status (7)

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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
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

Families Citing this family (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

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1215064A (en) * 1967-09-02 1970-12-09 Schlageter Bayerische Maschf Improvements relating to stone cutting and finishing wheels
US4209950A (en) * 1976-11-13 1980-07-01 Hans Sielemann Grinding machine
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
EP0875338A2 (en) * 1997-05-02 1998-11-04 B. Maier Zerkleinerungstechnik GmbH Knife ring cutter

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4316514C2 (en) * 1993-05-18 1996-02-08 Pallmann Kg Maschf Method and device for resharpening the knives of comminution machines
US5674116A (en) * 1996-10-09 1997-10-07 Cmi International Inc. Disc with coolant passages for an abrasive machining assembly

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1215064A (en) * 1967-09-02 1970-12-09 Schlageter Bayerische Maschf Improvements relating to stone cutting and finishing wheels
US4209950A (en) * 1976-11-13 1980-07-01 Hans Sielemann Grinding machine
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
EP0875338A2 (en) * 1997-05-02 1998-11-04 B. Maier Zerkleinerungstechnik GmbH Knife ring cutter

Cited By (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

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PL338209A1 (en) 2000-08-14
ATE291990T1 (en) 2005-04-15
BR0000248A (en) 2000-09-05
KR20000057930A (en) 2000-09-25
JP2000254841A (en) 2000-09-19
EP1025956B1 (en) 2005-03-30
DE50009889D1 (en) 2005-05-04
DE19904345A1 (en) 2000-08-31

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