EP2603352A2 - Blade grinder comprising a blade holder - Google Patents

Blade grinder comprising a blade holder

Info

Publication number
EP2603352A2
EP2603352A2 EP11799610.8A EP11799610A EP2603352A2 EP 2603352 A2 EP2603352 A2 EP 2603352A2 EP 11799610 A EP11799610 A EP 11799610A EP 2603352 A2 EP2603352 A2 EP 2603352A2
Authority
EP
European Patent Office
Prior art keywords
knife
axis
holder
blade
grindstone
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
EP11799610.8A
Other languages
German (de)
French (fr)
Other versions
EP2603352B1 (en
Inventor
Johannes Franzen
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.)
Johannes Franzen GmbH and Co KG
Original Assignee
Johannes Franzen GmbH and Co KG
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 Johannes Franzen GmbH and Co KG filed Critical Johannes Franzen GmbH and Co KG
Publication of EP2603352A2 publication Critical patent/EP2603352A2/en
Application granted granted Critical
Publication of EP2603352B1 publication Critical patent/EP2603352B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • 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
    • B24B3/365—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of cutting blades of rotary mower blades
    • 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
    • B24B41/00—Component parts such as frames, beds, carriages, headstocks
    • B24B41/06—Work supports, e.g. adjustable steadies
    • B24B41/066—Work supports, e.g. adjustable steadies adapted for supporting work in the form of tools, e.g. drills

Definitions

  • Knife sharpener with a knife holder
  • the invention relates to a knife he schleif er with a knife holder.
  • a knife is usually passed along a grindstone.
  • An automation of knife sharpening devices allows a high precision of the grinding process.
  • difficulties for automatic operation arise when the knives have special contours requiring special guidance of the grinding wheel relative to the knife.
  • Many knives, such as lawnmower knives have opposed cutting edges. To precisely grind such knives, they must be clamped. In this case, one side of the knife is first ground in a clamped position. Subsequently, the knife is clamped in the rotated position again, so that the second side of the knife can be ground.
  • the invention is therefore based on the object of further developing a knife sharpener with a knife holder such that even knives with a complicated cutting contour can be ground with a simple knife sharpener.
  • This object is achieved with a knife sharpener with a knife holder in which the knife holder is rotatably mounted about a first axis, wherein the first axis is rotatably mounted about a second axis arranged perpendicular to the second axis.
  • This special bearing of the knife holder makes it possible to grind knives quickly and precisely with two opposite cutting edges.
  • the movement of the grindstone can remain within narrow limits. This saves time that would otherwise be necessary for the movement of the grindstone.
  • By rotating the knife holder about a vertical axis after grinding one side of the double-edged knife, the other edge can be ground.
  • the rotation of the knife holder about a horizontal axis allows a simple way to adjust the angle of attack of the knife relative to the grindstone and optionally also to vary during the grinding process.
  • the special holder of the knife thus enables a simple machine structure, a grinding of individually designed cutting edges and a particularly fast grinding process.
  • the knife sharpener has a grindstone which is displaceable on a first straight line and on a second straight line arranged perpendicular to the first straight line. While the knife holder is rotatable about two mutually perpendicular axes, the grindstone is movable on two mutually perpendicular lines. This allows a simple machine construction, in which the grindstone is preferably displaceable on a vertical straight line and on a horizontal straight line. The interaction of the rotational movements on the knife holder and the lateral displacements on the grinding stone makes it possible to grind a wide variety of knives quickly and precisely.
  • the second axis is parallel to the first straight line. It is also advantageous if the first axis runs parallel to the second straight line. This facilitates the structure, as this, for example, all lines and axes can be formed either horizontally or vertically.
  • the knife holder is arranged concentrically to the second, preferably vertically arranged axis.
  • a simple structure results when the knife holder is arranged eccentrically to the first, preferably horizontal axis. This makes it possible to arrange the motor for the horizontal axis below the knife holder and to provide the vertical axis engine under the horizontal axis engine.
  • the first axis on the opposite side of the knife holder has a weight that rotates with the axis.
  • This weight is matched to the weight of the knife holder with the knife, so that the moment exerted by the knife holder with the knife on the axis is substantially canceled by the moment exerted by the weight on the axis.
  • a simple motor enough to pivot the horizontal axis with the attached blade holder.
  • the blade holder is rotatable about less than 360 degrees about the second axis.
  • a simple design of the knife sharpener is achieved by the fact that the first straight line on which the grindstone is moved, is horizontal.
  • a high precision with a fast feed is achieved in that the grindstone is vertically displaceable with a first spindle horizontally and with a second spindle.
  • a preferred embodiment provides that the knife holder is designed as a balance. The knife holder thus offers the possibility of checking whether the knife attached to it has the same weight on both sides. If the knife is heavier on one side than on the other side, this difference in the grinding process can be compensated. This makes it possible to balance the knife during the grinding process.
  • FIG. 1 shows a schematic view of a knife sharpener
  • Figure 2 is a detail view of the rotatable mounting for the knife holder.
  • the knife sharpener 1 shown in FIG. 1 consists essentially of the knife holder 2, the knife holder bearing 3 and the grinding stone 4.
  • the knife holder bearing 3 consists of a holding table 7, which is fixed to a first axis 8.
  • the axis 8 is rotatably mounted in a block 9. This block 9 is in turn rotatably mounted about a second axis 10.
  • Weights 11, 12 are attached to the first axle 8 in such a way that the weights rotate with the axle 8.
  • brackets 13 and 14 are fixed to which height-adjustable devices 15, 16 are attached to support the knife 5.
  • the grindstone 4 is moved up and down along a vertical first straight 17 by a first spindle (not shown).
  • a second spindle allows the grindstone 4 to be displaced along a horizontal second straight line 18. This allows the motor 19 of the grindstone 4 to be accurately moved up and down and back and forth.
  • the knife holder bearing 3 is first rotated about the axis 10 for the grinding process by means of a motor (not shown) according to the arrow 20 so that the knife is located approximately below the grindstone 4. With the motor 21, the knife holder 2 is rotated along the direction of arrow 22 about the first axis 8, that the knife 5 is aligned in an optimal position obliquely to the grindstone 4. Subsequently, the grindstone 4 can be lowered with the spindle and be moved horizontally so that it moves over the blade of the knife 5.
  • the first side 23 of the knife 5 is ground.
  • the knife 5 is rotated about the axis 10 so that the second side 24 of the knife 5 is positioned approximately below the grindstone 4.
  • the motor 21 By means of the motor 21, in turn, the oblique position of the blade 5 relative to the grindstone 4 is set. represents before the grindstone 4 is lowered and moved on the cutting edge of the blade 5 back and forth.
  • a height-adjustable system 25 serves as an attachment for the table 7 in a special angular position of the table 7 relative to the block 9.
  • the knife sharpener makes it possible to move the knife and the grindstone remotely controlled. The few given possibilities of movement make it possible to grind a wide variety of knives with a simple device.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Soil Working Implements (AREA)

Abstract

Disclosed is a blade grinder comprising a blade holder that is mounted so as to be rotatable about a horizontal shaft which is mounted so as to be rotatable about a vertical axis, thus allowing the blade to be optimally adjusted relative to a grinding disk. Said grinding disk can preferably be vertically and horizontally moved using spindles. This creates a simple design allowing a lawnmower blade to be ground in a fully automatic manner.

Description

Messerschleifer mit einem Messerhalter  Knife sharpener with a knife holder
[Ol] Die Erfindung betrifft einen Messer schleif er mit einem Messerhalter. [Ol] The invention relates to a knife he schleif er with a knife holder.
[02] Um ein Messer zu schleifen wird üblicherweise ein Messer an einem Schleifstein entlang geführt. Eine Automatisierung von Messerschleifeinrichtungen ermöglicht eine hohe Präzision des Schleif Vorganges. Schwierigkeiten für einen automatischen Betrieb entstehen jedoch, wenn die Messer spezielle Konturen aufweisen, die eine spezielle Führung der Schleifscheibe relativ zum Messer erfordern. [03] Viele Messer, wie beispielsweise Rasenmähermesser, haben gegenüberliegende Schneiden. Um derartige Messer präzise zu schleifen, müssen sie eingespannt werden. Hierbei wird in einer eingespannten Position zunächst eine Seite des Messers geschliffen. Anschließend wird das Messer in gedrehter Position nochmals eingespannt, so dass die zweite Seite des Messers geschliffen werden kann. [02] To grind a knife, a knife is usually passed along a grindstone. An automation of knife sharpening devices allows a high precision of the grinding process. However, difficulties for automatic operation arise when the knives have special contours requiring special guidance of the grinding wheel relative to the knife. [03] Many knives, such as lawnmower knives, have opposed cutting edges. To precisely grind such knives, they must be clamped. In this case, one side of the knife is first ground in a clamped position. Subsequently, the knife is clamped in the rotated position again, so that the second side of the knife can be ground.
[04] Insbesondere bei Mulchmessem liegt keine gerade Schneide vor sondern die Schneide des Messers hat radial innen eine andere Form als radial außen. Derartige Messer sind mit herkömmlichen Messerschleifern nicht automatisch zu bearbeiten. [04] Especially with mulching knives, there is no straight cutting edge but the cutting edge of the knife has a different shape radially inward than radially outside. Such knives can not be processed automatically with conventional knife sharpeners.
BESTÄTIGUNGSKOPIE [05] Der Erfindung liegt daher die Aufgabe zugrunde, einen Messerschleifer mit einem Messerhalter derart weiterzuentwickeln, dass auch Messer mit komplizierter Schneidenkontur mit einem einfachen Messerschleifer geschliffen werden können. [06] Diese Aufgabe wird mit einem Messerschleifer mit einem Messerhalter gelöst, bei dem der Messerhalter um eine erste Achse drehbar gelagert ist, wobei die erste Achse um eine zur ersten Achse senkrecht angeordnete zweite Achse drehbar gelagert ist. CONFIRMATION COPY [05] The invention is therefore based on the object of further developing a knife sharpener with a knife holder such that even knives with a complicated cutting contour can be ground with a simple knife sharpener. [06] This object is achieved with a knife sharpener with a knife holder in which the knife holder is rotatably mounted about a first axis, wherein the first axis is rotatably mounted about a second axis arranged perpendicular to the second axis.
[07] Diese spezielle Lagerung des Messerhalters ermöglicht es, Messer mit zwei gegenüberliegenden Schneiden schnell und präzise zu schleifen. Die Bewegung des Schleifsteins kann in engen Grenzen bleiben. Dadurch wird Zeit eingespart, die sonst für die Bewegung des Schleifsteins notwendig wäre. Durch die Drehung des Messerhalters um eine senkrechte Achse kann nach dem Schleifen der einen Seite des zweischneidigen Messers die andere Schneide geschliffen werden. Das Drehen des Messerhalters um eine waagerechte Achse erlaubt es auf einfache Art und Weise, den Anstellwinkel des Messers relativ zum Schleifstein einzustellen und gegebenenfalls auch während des Schleifvorgangs zu variieren. [07] This special bearing of the knife holder makes it possible to grind knives quickly and precisely with two opposite cutting edges. The movement of the grindstone can remain within narrow limits. This saves time that would otherwise be necessary for the movement of the grindstone. By rotating the knife holder about a vertical axis, after grinding one side of the double-edged knife, the other edge can be ground. The rotation of the knife holder about a horizontal axis allows a simple way to adjust the angle of attack of the knife relative to the grindstone and optionally also to vary during the grinding process.
[08] Die spezielle Halterung des Messers ermöglicht somit einen einfa- chen Maschinenaufbau, ein Schleifen individuell gestalteter Schneiden und einen besonders schnellen Schleifprozess. [09] Vorteilhaft ist es, wenn der Messerschleifer einen Schleifstein aufweist, der auf einer ersten Gerade und auf einer zur ersten Gerade senkrecht angeordneten zweiten Gerade verschiebbar ist. Während der Messerhalter um zwei senkrecht zueinander angeordnete Achsen drehbar ist, ist der Schleifstein auf zwei senkrecht zueinander angeordneten Geraden bewegbar. Dies ermöglicht einen einfachen Maschinenaufbau, bei dem der Schleifstein vorzugsweise auf einer senkrechten Geraden und auf einer waagerechten Geraden verschiebbar ist. Das Zusammenwirken der Drehbewegungen am Messerhalter und der Lateralverschiebungen am Schleif- stein ermöglicht es, verschiedenste Messer schnell und präzise zu schleifen. [08] The special holder of the knife thus enables a simple machine structure, a grinding of individually designed cutting edges and a particularly fast grinding process. [09] It is advantageous if the knife sharpener has a grindstone which is displaceable on a first straight line and on a second straight line arranged perpendicular to the first straight line. While the knife holder is rotatable about two mutually perpendicular axes, the grindstone is movable on two mutually perpendicular lines. This allows a simple machine construction, in which the grindstone is preferably displaceable on a vertical straight line and on a horizontal straight line. The interaction of the rotational movements on the knife holder and the lateral displacements on the grinding stone makes it possible to grind a wide variety of knives quickly and precisely.
[10] Vorteilhaft ist es, wenn die erste Achse die zweite Achse schneidet. Dies ermöglicht einen einfachen Aufbau des Messerhalters. [10] It is advantageous if the first axis intersects the second axis. This allows a simple construction of the knife holder.
[11] Weiterhin wird vorgeschlagen, dass die zweite Achse zur ersten Ge- raden parallel ist. Vorteilhaft ist es ebenso, wenn die erste Achse zur zweiten Geraden parallel verläuft. Dies erleichtert den Aufbau, da dadurch beispielsweise alle Geraden und Achsen entweder waagerecht oder senkrecht ausgebildet sein können. [11] It is further suggested that the second axis is parallel to the first straight line. It is also advantageous if the first axis runs parallel to the second straight line. This facilitates the structure, as this, for example, all lines and axes can be formed either horizontally or vertically.
[12] Vorteilhaft ist es, wenn der Messerhalter konzentrisch zur zweiten, vorzugsweise senkrecht angeordneten Achse angeordnet ist. Ein einfacher Aufbau ergibt sich, wenn der Messerhalter exzentrisch zur ersten, vorzugsweise waagerechten Achse angeordnet ist. Dies ermöglicht es, den Motor für die waagerechte Achse unterhalb des Messerhalters anzuordnen und den Motor für die senkrechte Achse unter dem Motor für die waagerechte Achse vorzusehen. [12] It is advantageous if the knife holder is arranged concentrically to the second, preferably vertically arranged axis. A simple structure results when the knife holder is arranged eccentrically to the first, preferably horizontal axis. This makes it possible to arrange the motor for the horizontal axis below the knife holder and to provide the vertical axis engine under the horizontal axis engine.
[13] Um den Messerhalter möglichst leicht gängig um die erste Achse drehen zu können, wird vorgeschlagen, dass die erste Achse auf der dem Messerhalter gegenüberliegenden Seite ein Gewicht aufweist, das sich mit der Achse dreht. In order to turn the knife holder as easily as possible around the first axis, it is proposed that the first axis on the opposite side of the knife holder has a weight that rotates with the axis.
[14] Dieses Gewicht ist auf das Gewicht des Messerhalters mit dem Messer abgestimmt, so dass das durch den Messerhalter mit dem Messer auf die Achse ausgeübte Moment durch das vom Gewicht auf die Achse aus- geübte Moment im Wesentlichen aufgehoben wird. Dadurch reicht ein einfacher Motor aus, um die waagerechte Achse mit dem daran befestigten Messerhalter zu schwenken. [14] This weight is matched to the weight of the knife holder with the knife, so that the moment exerted by the knife holder with the knife on the axis is substantially canceled by the moment exerted by the weight on the axis. As a result, a simple motor enough to pivot the horizontal axis with the attached blade holder.
[15] Ein Drehen des Messerhalters um die zweite, vorzugsweise senkrechte Achse erschwert die Kabelführung zu dem die waagerechte Achse drehenden Motor. Daher wird vorgeschlagen, dass der Messerhalter um weniger als 360 Grad um die zweite Achse drehbar ist. Turning the knife holder about the second, preferably vertical axis makes the cable guide to the motor rotating the horizontal axis more difficult. Therefore, it is proposed that the blade holder is rotatable about less than 360 degrees about the second axis.
[16] Ein einfacher Aufbau des Messerschleifers wird dadurch erreicht, dass die erste Gerade, auf der der Schleifstein bewegt wird, waagerecht ist. [16] A simple design of the knife sharpener is achieved by the fact that the first straight line on which the grindstone is moved, is horizontal.
[17] Eine hohe Präzision mit einer schnellen Zuführung wird dadurch erzielt, dass der Schleifstein mit einer ersten Spindel waagerecht und mit einer zweiten Spindel senkrecht verlagerbar ist. [18] Eine bevorzugte Ausführungsvariante sieht vor, dass der Messerhalter als Waage ausgebildet ist. Der Messerhalter bietet dadurch die Möglichkeit zu prüfen, ob das auf ihm befestigte Messer auf beiden Seiten das gleiche Gewicht aufweist. Sofern das Messer auf einer Seite schwerer ist als auf der anderen Seite, kann dieser Unterschied beim Schleifprozess ausgeglichen werden. Dies ermöglicht es, das Messer während des Schleifvorgangs auszuwuchten. A high precision with a fast feed is achieved in that the grindstone is vertically displaceable with a first spindle horizontally and with a second spindle. A preferred embodiment provides that the knife holder is designed as a balance. The knife holder thus offers the possibility of checking whether the knife attached to it has the same weight on both sides. If the knife is heavier on one side than on the other side, this difference in the grinding process can be compensated. This makes it possible to balance the knife during the grinding process.
[19] Eine bevorzugte Ausführungsvariante eines Messerschleifers ist in der Zeichnung dargestellt und wird im Folgenden näher erläutert. Es zeigt Figur 1 eine schematische Ansicht eines Messerschleifers mit [19] A preferred embodiment of a knife sharpener is shown in the drawing and will be explained in more detail below. FIG. 1 shows a schematic view of a knife sharpener
Messerhalter und Schleifstein und  Knife holder and grindstone and
Figur 2 eine Detailansicht der drehbeweglichen Lagerung für den Messerhalter. Figure 2 is a detail view of the rotatable mounting for the knife holder.
[20] Der in Figur 1 gezeigte Messerschleifer 1 besteht im Wesentlichen aus dem Messerhalter 2, dem Messerhalterlager 3 und dem Schleifstein 4. The knife sharpener 1 shown in FIG. 1 consists essentially of the knife holder 2, the knife holder bearing 3 and the grinding stone 4.
[21] Mit dem Messerhalter 2 wird ein Messer 5 in einem Futter 6 eingespannt und dadurch fest auf dem Messerhalterlager 3 gehalten. Das Messerhalterlager 3 besteht aus einem Haltetisch 7, der an einer ersten Achse 8 befestigt ist. Die Achse 8 ist in einem Bock 9 drehbar gelagert. Dieser Bock 9 ist wiederum um eine zweite Achse 10 drehbar gelagert. [22] An der ersten Achse 8 sind Gewichte 11, 12 derart befestigt, dass sich die Gewichte mit der Achse 8 drehen. Auf den Gewichten 11 und 12 sind Halterungen 13 und 14 befestigt, an denen höhenverstellbare Einrichtungen 15, 16 zur Abstützung des Messers 5 befestigt sind. [23] Der Schleifstein 4 wird über eine erste Spindel (nicht gezeigt) längs einer senkrechten ersten Geraden 17 auf und ab bewegt. Eine zweite Spindel (nicht gezeigt) ermöglicht ein Verschieben des Schleifsteins 4 längs einer waagerechten zweiten Gerade 18. Dadurch kann der Motor 19 des Schleifsteins 4 präzise auf und ab und hin und her bewegt werden. [24] Das Messerhalterlager 3 wird für den Schleifprozess zunächst mittels eines Motors (nicht gezeigt) entsprechend dem Pfeil 20 um die Achse 10 so gedreht, dass das Messer etwa unter dem Schleifstein 4 liegt. Mit dem Motor 21 wird der Messerhalter 2 längs der Pfeilrichtung 22 derart um die erste Achse 8 gedreht, dass das Messer 5 in einer optimalen Lage schräg zum Schleifstein 4 ausgerichtet ist. Anschließend kann der Schleifstein 4 mit der Spindel abgesenkt werden und waagerecht verschoben werden, so dass er über die Klinge des Messers 5 fährt. Durch ein Hin- und Herbewegen des Schleifsteins 4 auf der Klinge des Messers 5 wird die erste Seite 23 des Messers 5 geschliffen. [25] Sowie die erste Seite 23 des Messers 5 geschliffen ist, wird das Messer 5 um die Achse 10 so gedreht, dass die zweite Seite 24 des Messers 5 etwa unter dem Schleifstein 4 positioniert ist. Mittels des Motors 21 wird wiederum die Schräglage des Messers 5 relativ zum Schleifstein 4 einge- stellt, bevor der Schleifstein 4 abgesenkt und auf der Schneide des Messers 5 hin und her bewegt wird. [21] With the knife holder 2, a knife 5 is clamped in a chuck 6 and thereby held firmly on the knife holder bearing 3. The knife holder bearing 3 consists of a holding table 7, which is fixed to a first axis 8. The axis 8 is rotatably mounted in a block 9. This block 9 is in turn rotatably mounted about a second axis 10. [22] Weights 11, 12 are attached to the first axle 8 in such a way that the weights rotate with the axle 8. On the weights 11 and 12 brackets 13 and 14 are fixed to which height-adjustable devices 15, 16 are attached to support the knife 5. [23] The grindstone 4 is moved up and down along a vertical first straight 17 by a first spindle (not shown). A second spindle (not shown) allows the grindstone 4 to be displaced along a horizontal second straight line 18. This allows the motor 19 of the grindstone 4 to be accurately moved up and down and back and forth. The knife holder bearing 3 is first rotated about the axis 10 for the grinding process by means of a motor (not shown) according to the arrow 20 so that the knife is located approximately below the grindstone 4. With the motor 21, the knife holder 2 is rotated along the direction of arrow 22 about the first axis 8, that the knife 5 is aligned in an optimal position obliquely to the grindstone 4. Subsequently, the grindstone 4 can be lowered with the spindle and be moved horizontally so that it moves over the blade of the knife 5. By reciprocating the grindstone 4 on the blade of the knife 5, the first side 23 of the knife 5 is ground. [25] As the first side 23 of the knife 5 is ground, the knife 5 is rotated about the axis 10 so that the second side 24 of the knife 5 is positioned approximately below the grindstone 4. By means of the motor 21, in turn, the oblique position of the blade 5 relative to the grindstone 4 is set. represents before the grindstone 4 is lowered and moved on the cutting edge of the blade 5 back and forth.
[26] Eine höhenverstellbare Anlage 25 dient als Anlage für den Tisch 7 in einer speziellen Winkellage des Tisches 7 relativ zum Bock 9. [27] Der Messerschleifer ermöglicht es, das Messer und den Schleifstein ferngesteuert zu bewegen. Die wenigen vorgegebenen Bewegungsmöglichkeiten erlauben es, mit einer einfachen Vorrichtung unterschiedlichste Messer zu schleifen. A height-adjustable system 25 serves as an attachment for the table 7 in a special angular position of the table 7 relative to the block 9. [27] The knife sharpener makes it possible to move the knife and the grindstone remotely controlled. The few given possibilities of movement make it possible to grind a wide variety of knives with a simple device.
[28] Die Programmierung von Bewegungsabläufen führt dazu, dass für spezielle Messer spezielle Bewegungsabläufe als Softwareprogramm festgehalten werden können. Dadurch kann nach Einspannen eines Messers 5 mittels eines vorgegebenen, zum Messer 5 passenden Softwareprogramms der gesamte Bewegungsablauf von Messerhalter und Schleifstein vollautomatisch gesteuert werden. Dies führt zu einem schnellen, effizienten und besonders hochwertigen Messerschliff. [28] The programming of motion sequences means that special motion sequences can be recorded as a software program for special knives. As a result, after clamping a knife 5 by means of a predetermined software program suitable for the knife 5, the entire movement sequence of knife holder and grindstone can be controlled fully automatically. This leads to a fast, efficient and especially high-quality knife sharpening.

Claims

Messerschleifer (1) mit einem Messerhalter (2), dadurch gekennzeichnet, dass der Messerhalter (2) um eine erste Achse drehbar gelagert ist, wobei die erste Achse (8) um eine zur ersten Achse (8) senkrecht angeordnete zweite Achse (10) drehbar gelagert ist. Knife grinder (1) with a knife holder (2), characterized in that the knife holder (2) is rotatably mounted about a first axis, wherein the first axis (8) about a first axis (8) perpendicularly arranged second axis (10) is rotatably mounted.
Messerschleifer nach Anspruch 1, dadurch gekennzeichnet, dass er einen Schleifstein (4) aufweist, der auf einer ersten Gerade (17) und auf einer zur ersten Gerade senkrecht angeordneten zweiten Gerade (18) verschiebbar ist. Knife sharpener according to claim 1, characterized in that it comprises a grindstone (4) which is displaceable on a first straight line (17) and on a second straight line (18) arranged perpendicular to the first straight line.
Messerschleifer nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die erste Achse (8) die zweite Achse (10) schneidet. Knife sharpener according to one of the preceding claims, characterized in that the first axis (8) intersects the second axis (10).
Messerschleifer nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die zweite Achse (10) zur ersten Geraden (17) parallel ist. Knife sharpener according to one of the preceding claims, characterized in that the second axis (10) to the first straight line (17) is parallel.
Messerschleifer nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Messerhalter (2) exzentrisch zur ersten Achse (8) angeordnet ist. Knife sharpener according to one of the preceding claims, characterized in that the knife holder (2) is arranged eccentrically to the first axis (8).
Messerschleifer nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die erste Achse (8) auf der dem Mes- serhalter (2) gegenüberliegenden Seite ein Gewicht (11, 12) aufweist, das sich mit der Achse (8) dreht. Knife sharpener according to one of the preceding claims, characterized in that the first axis (8) on the serhalter (2) opposite side of a weight (11, 12) which rotates with the axis (8).
Messerschleifer nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Messerhalter (2) um weniger als 360° um die zweite Achse (10) drehbar ist. Knife sharpener according to one of the preceding claims, characterized in that the knife holder (2) is rotatable by less than 360 ° about the second axis (10).
Messerschleifer nach einem der Ansprüche 2 bis 7, dadurch gekennzeichnet, dass die erste Gerade (17) waagerecht ist. Knife sharpener according to one of claims 2 to 7, characterized in that the first straight line (17) is horizontal.
Messerschleifer nach einem der Ansprüche 2 bis 8, dadurch gekennzeichnet, dass der Schleifstein (4) mit einer ersten Spindel waagerecht und mit einer zweiten Spindel senkrecht verlagerbar ist. Knife sharpener according to one of claims 2 to 8, characterized in that the grindstone (4) is vertically displaceable with a first spindle horizontally and with a second spindle.
Messerschleifer nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Messerhalter (3) als Waage ausgebildet ist. Knife sharpener according to one of the preceding claims, characterized in that the knife holder (3) is designed as a balance.
EP11799610.8A 2010-08-11 2011-08-03 Blade grinder comprising a blade holder Active EP2603352B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010034048A DE102010034048A1 (en) 2010-08-11 2010-08-11 Knife sharpener with a knife holder
PCT/DE2011/001544 WO2012025089A2 (en) 2010-08-11 2011-08-03 Blade grinder comprising a blade holder

Publications (2)

Publication Number Publication Date
EP2603352A2 true EP2603352A2 (en) 2013-06-19
EP2603352B1 EP2603352B1 (en) 2014-04-16

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EP11799610.8A Active EP2603352B1 (en) 2010-08-11 2011-08-03 Blade grinder comprising a blade holder

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US (1) US8986075B2 (en)
EP (1) EP2603352B1 (en)
DE (2) DE102010034048A1 (en)
WO (1) WO2012025089A2 (en)

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CN103522178A (en) * 2013-10-25 2014-01-22 茂名市怡华机械有限公司 Compact and efficient tool sharpener sharpening head
DE202019105860U1 (en) 2019-10-22 2019-12-16 Alfred Siemer Grinding device for grinding at least one knife with at least one grindstone
CN112692707B (en) * 2020-12-24 2022-04-12 枣庄北航机床创新研究院有限公司 Six-linkage polishing method

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Also Published As

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US20130157547A1 (en) 2013-06-20
WO2012025089A3 (en) 2012-05-10
US8986075B2 (en) 2015-03-24
DE102010034048A1 (en) 2012-02-16
WO2012025089A2 (en) 2012-03-01
DE112011102690A5 (en) 2013-05-29
EP2603352B1 (en) 2014-04-16

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