WO2017108851A1 - Grinding device having a movable grinding means - Google Patents

Grinding device having a movable grinding means Download PDF

Info

Publication number
WO2017108851A1
WO2017108851A1 PCT/EP2016/082017 EP2016082017W WO2017108851A1 WO 2017108851 A1 WO2017108851 A1 WO 2017108851A1 EP 2016082017 W EP2016082017 W EP 2016082017W WO 2017108851 A1 WO2017108851 A1 WO 2017108851A1
Authority
WO
WIPO (PCT)
Prior art keywords
knife
grinding
cutting contour
abrasive
grinding device
Prior art date
Application number
PCT/EP2016/082017
Other languages
German (de)
French (fr)
Inventor
Alexander May
Winfried Hörberg
Original Assignee
Gea Food Solutions Germany 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 Gea Food Solutions Germany Gmbh filed Critical Gea Food Solutions Germany Gmbh
Publication of WO2017108851A1 publication Critical patent/WO2017108851A1/en

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
    • B24B27/00—Other grinding machines or devices
    • B24B27/003—Other grinding machines or devices using a tool turning around the work-piece
    • 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
    • B24B27/00—Other grinding machines or devices
    • B24B27/0015—Hanging grinding machines
    • 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
    • B24B3/46—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of cutting blades of disc blades
    • B24B3/463—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of cutting blades of disc blades of slicing machine disc 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
    • B24B49/00—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation
    • B24B49/02—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation according to the instantaneous size and required size of the workpiece acted upon, the measuring or gauging being continuous or intermittent
    • B24B49/04—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation according to the instantaneous size and required size of the workpiece acted upon, the measuring or gauging being continuous or intermittent involving measurement of the workpiece at the place of grinding during grinding operation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/08—Means for treating work or cutting member to facilitate cutting
    • B26D7/12—Means for treating work or cutting member to facilitate cutting by sharpening the cutting member
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D2210/00—Machines or methods used for cutting special materials
    • B26D2210/02—Machines or methods used for cutting special materials for cutting food products, e.g. food slicers

Definitions

  • the present invention relates to a grinding device for grinding a cutting contour of a knife.
  • the grinding device comprises a base frame, a knife holder and a driven abrasive.
  • Such grinding devices are known in the art and are used to provide knives, particularly slicer knives, i. For example, circular and / or sickle knife to grind.
  • the cutting contour of the knife is traversed via a link, wherein the grinding device is fixedly mounted and the knife rotates about the scenery from the grinding device.
  • the knife is rotated past the grinding unit.
  • the knife is thus moved during grinding.
  • One of the disadvantages of this embodiment is that unwanted tolerances occur during grinding as a result of the movement of the knife, and as a result the cutting contour does not cut uniformly.
  • the object is achieved with a grinding device for grinding a cutting contour of a knife with a base frame, a knife holder and one or more driven abrasive (s), wherein the blade holder is rigid and that abrasive is provided on one or more drives, the / it during grinding moved along the cutting contour of the knife.
  • a grinding device for grinding a cutting contour of a knife with a base frame, a knife holder and one or more driven abrasive (s), wherein the blade holder is rigid and that abrasive is provided on one or more drives, the / it during grinding moved along the cutting contour of the knife.
  • the present invention relates to a grinding apparatus for grinding a knife.
  • This knife is preferably a so-called slicer knife which is provided rotatingly on a slicing device, a so-called "slicer", and which cuts food slices from a food bar, a slicer knife being in particular a sickle or circular knife however, it can also be used for grinding, for example, cutters and / or hand knives
  • Base frame on which a blade receptacle and one or more driven, in particular rotationally driven abrasive, for example, one or more grinding wheel (s) are provided.
  • Each rotationally driven abrasive can regrind the cutting angle and / or the clearance angle of the cutting contour.
  • the angular position of the abrasive is adjustable in particular automatically adjustable so that predetermined, possibly also locally different cutting and / or clearance angle can be realized on the cutting contour.
  • each abrasive moves during grinding along at least a portion of the cutting contour of the knife.
  • each abrasive is provided on at least one drive, which can move it in particular in a plane, in particular in two mutually perpendicular directions.
  • this is an X-Y table, in particular with two linear drives.
  • the linear actuators can be an immediate linear drive or a drive that converts rotational to linear motion.
  • the abrasive is longitudinally displaceable on a linear drive. This linear drive is provided longitudinally displaceable on a second linear drive.
  • each point can be controlled in one plane, and thus the abrasive can precisely cut off the cutting contour of the knife.
  • the abrasive is provided on a robot arm.
  • the robot arm has the advantage that the abrasive is still adjustable in a third spatial direction, in particular perpendicular to the other two spatial directions.
  • the grinding device according to the invention still has a drive with which it is also adjustable in a third spatial direction, in particular perpendicular to the other two spatial directions.
  • the angle of attack of the abrasive, in particular the grinding wheel is also changeable.
  • the speed of the motor which drives the abrasive adjustable, in particular automatically adjustable.
  • the grinding device has a controller with a data memory in which the cutting contour of the respective knife is stored.
  • this cutting contour is read out of the data memory and from this data becomes the drive of the abrasive controlled so that it follows the cutting contour of the knife.
  • the specification of the knife, which is located on the knife holder can be done manually or automatically. Based on this specification, a specific data record is then used.
  • the cutting device has a means for detecting the position and / or the shape of the cutting contour and then particularly preferably store.
  • the grinding device is thus able to teach the cutting contour of a knife unknown to her and / or a knife already ground several times and to control the drive of the abrasive according to these data.
  • the data read in and / or stored have information about the position of the contour, for example relative to the knife holder or the base frame, and / or about the shape, i. the existing at the respective point of the cutting contour cutting and / or clearance angle. Data on the cutting and / or clearance angle are of particular interest for knives with a changing cutting and / or clearance angle or for so-called sawtooth knives.
  • the cutting contour is detected and stored during and / or after grinding.
  • This preferred embodiment of the present invention takes into account the material removal during grinding.
  • the position of the cutting contour relative to the frame and / or its position relative to the blade receptacle changes by one.
  • the stored data can then be retrieved and used when re-sharpening the knife. Consequently, the grinding process is always performed with the current data of the cutting contour.
  • the device has a means by which the knife to be ground can be identified.
  • this means is a receiver that receives electromagnetic wave from an RFID.
  • a reader that reads a bar or QR code.
  • a means for example a transmitter, provided on the grinding device, with the data on the respective knife, for example on an RFID, can be deposited.
  • this data may be the contour after the Grinding and / or other data about the grinding history included.
  • the means also has data on the use of the knife, for example between two grinding cycles. Consequently, with this data, the load of the knife, for example the number of cuts and / or the type of cut food bar and / or the temperature of the respective food bar and / or the use of interleavers and / or the number of contacts with the cutting edge since Last loops deposited on the knife and taken into account at the next grinding.
  • this data does not necessarily have to be deposited on the knife, but can also be sent directly or indirectly from the slicing device to the grinding device. However, they must be able to be assigned to the respective knife.
  • the grinding device has a fastening means to secure the knife in a unique position on the blade holder. This means that the knife is clearly fixed in three spatial directions.
  • Another object of the present invention is a method for grinding a knife with a cutting contour, wherein the knife is stationary during grinding and moves an abrasive along the cutting contour of the knife.
  • the abrasive is moved by a drive along the cutting contour, wherein the control of the drive, the position of the cutting contour is clearly known.
  • the position and / or the shape of the cutting contour during and / or after grinding is detected and stored in a data memory.
  • FIGS. 1 to 4 each show the grinding device according to the invention.
  • Figures 1 to 4 each show the grinding device according to the invention, which has a base frame 5 with a blade holder 6 which is not slidably provided on the base frame, i. the knife holder can not be moved relative to the base frame, at least during grinding.
  • a knife 1 in the present case a sickle knife, fixedly arranged; i.e. the knife does not move at least during grinding, especially in its mounting plane.
  • the grinding device according to the invention has a driven abrasive 2, in particular a rotating grinding wheel. With the grinding wheel, both the front and the back of the cutting contour 7 can be ground. For grinding, the abrasive moves along the contour of the knife.
  • the grinding device according to the invention has a drive, in the present case a longitudinal drive 3 and a transverse drive 4, with which the abrasive 2 can be moved along the cutting contour 7 of the blade 1.
  • FIGS. 1 to 4 each show a different position of the abrasive 2 relative to the cutting contour 7 of the knife 1.
  • the grinding device has a control (not shown) in which data about the position of the cutting contour 7 of the cutting blade and / or its shape are deposited. This data can already be stored in the data memory. Alternatively or additionally, however, it is also possible to detect the shape and / or position of the cutting contour before cutting, for example, to detect by scanning and to store the data thus obtained in a data memory. These existing and / or determined data are then used to control the movement of the abrasive relative to the cutting contour.
  • the data can not only have information about the position of the cutting contour, but preferably also to obtain data about the local existing cutting angle and / or the local existing clearance angle.
  • the cutting contour can be measured again and the data stored in a data memory, which is located for example on or on the knife, for example an RFID.
  • the data can then be read out by a slicing device in order to optimally grind the ground knife with a slightly changed cutting contour on the slicing device position.
  • the data can also be used in the next grinding, so that the abrasive moves off the stored cutting contour.

Abstract

The invention relates to a grinding device for grinding a cutting contour (7) of a knife (1), comprising a base frame (5), a knife holder (6), and one or more driven grinding means (2), wherein the knife holder (6) is rigid and the grinding means (2) is provided on one or more drive(s) (3, 4), which move said means along the cutting contour (7) of the knife (1) during grinding.

Description

Schleifvorrichtung mit einem beweglichen Schleifmittel  Grinding device with a mobile abrasive
Die vorliegende Erfindung betrifft eine Schleifvorrichtung zum Schleifen einer Schneidkontur eines Messers. Die Schleifvorrichtung weist ein Grundgestell, eine Messeraufnahme und ein angetriebenes Schleifmittel auf. The present invention relates to a grinding device for grinding a cutting contour of a knife. The grinding device comprises a base frame, a knife holder and a driven abrasive.
Derartige Schleifvorrichtungen sind aus dem Stand der Technik bekannt und werden dazu eingesetzt, Messer, insbesondere Slicermesser, d.h. beispielsweise Kreis- und/oder Sichelmesser, zu schleifen. Bei den Schleifvorrichtungen gemäß dem Stand der Technik wird die Schneidkontur des Messers über eine Kulisse abgefahren, wobei die Schleifeinrichtung fix montiert ist und das Messer fährt rotierend über die Kulisse die Schleifeinrichtung ab. Gemäß einem anderen Stand der Technik wird das Messer rotierend an der Schleifeinheit vorbeigeführt. Bei allen Schleifvorrichtungen aus dem Stand der Technik wird das Messer folglich beim Schleifen bewegt. Diese Ausführungsform hat unter anderem den Nachteil, dass durch die Bewegung des Messers ungewollte Toleranzen beim Schleifen auftreten und die Schneidkontur dadurch nicht gleichmäßig schneidet. Such grinding devices are known in the art and are used to provide knives, particularly slicer knives, i. For example, circular and / or sickle knife to grind. In the grinding devices according to the prior art, the cutting contour of the knife is traversed via a link, wherein the grinding device is fixedly mounted and the knife rotates about the scenery from the grinding device. According to another prior art, the knife is rotated past the grinding unit. In all grinding devices of the prior art, the knife is thus moved during grinding. One of the disadvantages of this embodiment is that unwanted tolerances occur during grinding as a result of the movement of the knife, and as a result the cutting contour does not cut uniformly.
Es war deshalb die Aufgabe der vorliegenden Erfindung eine Schleifvorrichtung zur Verfügung zu stellen, die die Nachteile des Standes der Technik nicht aufweist. It was therefore the object of the present invention to provide a grinding device which does not have the disadvantages of the prior art.
Gelöst wird die Aufgabe mit einer Schleifvorrichtung zum Schleifen einer Schneidkontur eines Messers mit einem Grundgestell, einer Messeraufnahme und einem oder mehreren angetriebenen Schleifmittel(n), wobei die Messeraufnahme starr und dass Schleifmittel an einem oder mehreren Antrieben vorgesehen ist, der/die es beim Schleifen entlang der Schneidkontur des Messers bewegt. The object is achieved with a grinding device for grinding a cutting contour of a knife with a base frame, a knife holder and one or more driven abrasive (s), wherein the blade holder is rigid and that abrasive is provided on one or more drives, the / it during grinding moved along the cutting contour of the knife.
Die zu der erfindungsgemäßen Schleifvorrichtung gemachten Ausführungen gelten für das erfindungsgemäße Verfahren gleichermaßen und umgekehrt. The statements made on the grinding device according to the invention apply equally to the method according to the invention and vice versa.
Die vorliegende Erfindung betrifft eine Schleifvorrichtung zum Schleifen eines Messers. Bei diesem Messer handelt es sich vorzugsweise um ein sogenanntes Slicermesser, das an einer Aufschneidevorrichtung, einem sogenannten„Slicer" drehend vorgesehen wird und das Lebensmittelscheiben von einem Lebensmittelriegel abschneidet. Bei einem Slicermesser handelt es sich insbesondere um ein Sichel- oder Kreismesser. Die erfindungsgemäße Schleifvorrichtung kann aber auch zum Schleifen, beispielsweise von Kutter- und/oder Handmessern eingesetzt werden. Erfindungsgemäß weist die Schleifvorrichtung ein Grundgestell auf, an dem eine Messeraufnahme und ein oder mehrere angetriebene, insbesondere rotierend angetriebene Schleifmittel, beispielsweise eine oder mehrere Schleifscheibe(n) vorgesehen sind. Jedes rotierend angetriebene Schleifmittel kann den Schneidwinkel und/oder den Freiwinkel der Schneidkontur nachschleifen. Vorzugsweise ist die Winkelstellung des Schleifmittels einstellbar insbesondere automatisch einstellbar, so dass vorgegebene, gegebenenfalls auch lokal unterschiedliche Schneid- und/oder Freiwinkel an der Schneidkontur realisierbar sind. The present invention relates to a grinding apparatus for grinding a knife. This knife is preferably a so-called slicer knife which is provided rotatingly on a slicing device, a so-called "slicer", and which cuts food slices from a food bar, a slicer knife being in particular a sickle or circular knife however, it can also be used for grinding, for example, cutters and / or hand knives Base frame on which a blade receptacle and one or more driven, in particular rotationally driven abrasive, for example, one or more grinding wheel (s) are provided. Each rotationally driven abrasive can regrind the cutting angle and / or the clearance angle of the cutting contour. Preferably, the angular position of the abrasive is adjustable in particular automatically adjustable so that predetermined, possibly also locally different cutting and / or clearance angle can be realized on the cutting contour.
Erfindungsgemäß ist die Schleifvorrichtung nun so vorgesehen, dass die Messeraufnahme starr, d.h. nicht in einer Ebene beweglich, insbesondere nicht verschiebbar an dem Grundgestell angeordnet ist. Jedes Schleifmittel bewegt sich beim Schleifen entlang zumindest eines Abschnitts der Schneidkontur des Messers. Dafür ist jedes Schleifmittel an mindestens einem Antrieb vorgesehen, der es insbesondere in einer Ebene, insbesondere in zwei senkrecht aufeinander stehenden Richtungen bewegen kann. Beispielsweise handelt es sich dabei um einen X-Y-Tisch, insbesondere mit zwei Linearantrieben. Bei den Linearantrieben kann es um einen unmittelbaren Linearantrieb oder um einen Antrieb handeln, bei dem eine Rotations- in eine Linearbewegung umgewandelt wird. Das Schleifmittel ist an einem Linearantrieb längsverschieblich angeordnet. Dieser Linearantrieb ist längsverschieblich an einem zweiten Linearantrieb vorgesehen. Damit lässt sich jeder Punkt in einer Ebene ansteuern und somit kann das Schleifmittel die Schneidkontur des Messers exakt abfahren. Alternativ ist auch vorstellbar, dass das Schleifmittel an einem Roboterarm vorgesehen wird. Der Roboterarm hat den Vorteil, dass das Schleifmittel noch in eine dritte Raumrichtung, insbesondere senkrecht zu den beiden anderen Raumrichtungen verstellbar ist. Vorzugsweise weist die erfindungsgemäße Schleifvorrichtung deshalb noch einen Antrieb auf, mit dem es auch noch in eine dritte Raumrichtung, insbesondere senkrecht zu den beiden anderen Raumrichtungen verstellbar ist. Besonders bevorzugt ist auch noch der Anstellwinkel des Schleifmittels, insbesondere der Schleifscheibe veränderbar. According to the invention, the grinding device is now provided so that the blade holder rigid, i. not movable in a plane, in particular not slidably disposed on the base frame. Each abrasive moves during grinding along at least a portion of the cutting contour of the knife. For this, each abrasive is provided on at least one drive, which can move it in particular in a plane, in particular in two mutually perpendicular directions. For example, this is an X-Y table, in particular with two linear drives. The linear actuators can be an immediate linear drive or a drive that converts rotational to linear motion. The abrasive is longitudinally displaceable on a linear drive. This linear drive is provided longitudinally displaceable on a second linear drive. This means that each point can be controlled in one plane, and thus the abrasive can precisely cut off the cutting contour of the knife. Alternatively, it is also conceivable that the abrasive is provided on a robot arm. The robot arm has the advantage that the abrasive is still adjustable in a third spatial direction, in particular perpendicular to the other two spatial directions. Preferably, therefore, the grinding device according to the invention still has a drive with which it is also adjustable in a third spatial direction, in particular perpendicular to the other two spatial directions. Particularly preferably, the angle of attack of the abrasive, in particular the grinding wheel is also changeable.
Vorzugsweise ist die Drehzahl des Motors, der das Schleifmittel antreibt einstellbar, insbesondere automatisch einstellbar. Preferably, the speed of the motor, which drives the abrasive adjustable, in particular automatically adjustable.
Vorzugsweise weist die erfindungsgemäße Schleifvorrichtung eine Steuerung mit einem Datenspeicher auf, in dem die Schneidkontur des jeweiligen Messers hinterlegt ist. Sobald das Messer an der Messeraufnahme angebracht worden ist, wird diese Schneidkontur aus dem Datenspeicher ausgelesen und anhand dieser Daten wird der Antrieb des Schleifmittels so gesteuert, dass es der Schneidkontur des Messers folgt. Die Spezifizierung des Messers, das sich an der Messeraufnahme befindet kann manuell oder automatisch erfolgen. Anhand dieser Spezifizierung wird dann auf einen bestimmten Datensatz zurückgegriffen. Preferably, the grinding device according to the invention has a controller with a data memory in which the cutting contour of the respective knife is stored. As soon as the knife has been attached to the knife holder, this cutting contour is read out of the data memory and from this data becomes the drive of the abrasive controlled so that it follows the cutting contour of the knife. The specification of the knife, which is located on the knife holder can be done manually or automatically. Based on this specification, a specific data record is then used.
Gemäß einer weiteren bevorzugten Ausführungsform der vorliegenden Erfindung, weist die Schneidvorrichtung ein Mittel auf, um die Lage und/oder die Form der Schneidkontur zu erfassen und dann besonders bevorzugt abzuspeichern. Die Schleifvorrichtung ist demnach in der Lage die Schneidkontur eines ihr unbekannten Messers und/oder eines bereits mehrfach geschliffenen Messers einzulernen und anhand dieser Daten den Antrieb des Schleifmittels entsprechend zu steuern. Vorzugsweise weisen die eingelesenen und/oder hinterlegten Daten Information über die Lage der Kontur, beispielsweise relativ zu der Messeraufnahme oder dem Grundgestell, und/oder über die Form, d.h. den an der jeweiligen Stelle der Schneidkontur vorhandenen Schneid- und/oder Freiwinkel auf. Daten über den Schneid- und/oder Freiwinkel sind insbesondere bei Messern mit einem sich verändernden Schneid- und/oder Freiwinkel oder bei sogenannten Sägezahnmessern von Interesse. According to a further preferred embodiment of the present invention, the cutting device has a means for detecting the position and / or the shape of the cutting contour and then particularly preferably store. The grinding device is thus able to teach the cutting contour of a knife unknown to her and / or a knife already ground several times and to control the drive of the abrasive according to these data. Preferably, the data read in and / or stored have information about the position of the contour, for example relative to the knife holder or the base frame, and / or about the shape, i. the existing at the respective point of the cutting contour cutting and / or clearance angle. Data on the cutting and / or clearance angle are of particular interest for knives with a changing cutting and / or clearance angle or for so-called sawtooth knives.
Gemäß einer weiteren bevorzugten Ausführungsform der vorliegenden Erfindung wird die Schneidkontur beim und/oder nach dem Schleifen erfasst und abgespeichert. Diese bevorzugte Ausführungsform der vorliegenden Erfindung trägt dem Materialabtrag beim Schleifen Rechnung. Dadurch ändert sich um einen die Lage der Schneidkontur relativ zu dem Gestell und/oder deren Lage relativ zu der Messeraufnahme. Die so hinterlegten Daten können dann beim erneuten Schleifen des Messers abgerufen und eingesetzt werden. Folglich wird der Schleifprozess immer mit den aktuellen Daten der Schneidkontur durchgeführt. According to a further preferred embodiment of the present invention, the cutting contour is detected and stored during and / or after grinding. This preferred embodiment of the present invention takes into account the material removal during grinding. As a result, the position of the cutting contour relative to the frame and / or its position relative to the blade receptacle changes by one. The stored data can then be retrieved and used when re-sharpening the knife. Consequently, the grinding process is always performed with the current data of the cutting contour.
Gemäß einer bevorzugten Ausführungsform weist die Vorrichtung ein Mittel auf, mit dem das zu schleifende Messer identifiziert werden kann. Beispielsweise ist dieses Mittel ein Empfänger, der elektromagnetische Welle von einem RFID empfängt. Denkbar ist auch ein Lesegerät, das einen Bar- oder QR-Code ausliest. Sobald das Messer identifiziert ist, kann ihm der dazugehörige Datensatz über die Schneidkontur und/oder Daten über die Schleifund/oder Abnutzungshistorie zugeordnet werden und diese Daten können beim erneuten Schleifen berücksichtigt werden. According to a preferred embodiment, the device has a means by which the knife to be ground can be identified. For example, this means is a receiver that receives electromagnetic wave from an RFID. Also conceivable is a reader that reads a bar or QR code. Once the knife has been identified, the associated dataset on the cutting contour and / or data on the grinding and / or wear history can be assigned to it and this data can be taken into account during re-grinding.
Weiterhin bevorzugt ist ein Mittel, beispielsweise ein Sender, an der Schleifvorrichtung vorgesehen, mit dem Daten auf dem jeweiligen Messer, beispielsweise auf einem RFID, hinterlegt werden können. Diese Daten können beispielsweise die Kontur nach dem Schleifen und/oder andere Daten über die Schleifhistorie enthalten. Gemäß einer weiteren besonders bevorzugten Ausführungsform weist das Mittel auch Daten über die Nutzung des Messers, beispielsweise zwischen zwei Schleifzyklen auf. Mit diesen Daten kann folglich die Belastung des Messers, beispielsweise die Anzahl der Schnitte und/oder die Art des geschnittenen Lebensmittelriegels und/oder die Temperatur des jeweiligen Lebensmittelriegels und/oder der Gebrauch von Interleavern und/oder die Anzahl der Kontakte mit der Schneidkante seit dem letzten Schleifen auf dem Messer hinterlegt und beim nächsten Schleifen berücksichtigt werden. Der Fachmann versteht, dass diese Daten nicht notwendigerweise auf dem Messer hinterlegt sein müssen, sondern auch direkt oder indirekt von der Aufschneidevorrichtung zu der Schleifvorrichtung gesendet werden können. Sie müssen jedoch dem jeweiligen Messer zugeordnet werden können. Further preferably, a means, for example a transmitter, provided on the grinding device, with the data on the respective knife, for example on an RFID, can be deposited. For example, this data may be the contour after the Grinding and / or other data about the grinding history included. According to a further particularly preferred embodiment, the means also has data on the use of the knife, for example between two grinding cycles. Consequently, with this data, the load of the knife, for example the number of cuts and / or the type of cut food bar and / or the temperature of the respective food bar and / or the use of interleavers and / or the number of contacts with the cutting edge since Last loops deposited on the knife and taken into account at the next grinding. The person skilled in the art understands that this data does not necessarily have to be deposited on the knife, but can also be sent directly or indirectly from the slicing device to the grinding device. However, they must be able to be assigned to the respective knife.
Vorzugsweise weist die Schleifvorrichtung ein Befestigungsmittel auf, um das Messer in einer eindeutigen Lage an der Messeraufnahme zu befestigen. Dies bedeutet, dass das Messer in drei Raumrichtungen eindeutig fixiert ist. Preferably, the grinding device has a fastening means to secure the knife in a unique position on the blade holder. This means that the knife is clearly fixed in three spatial directions.
Ein weiterer Gegenstand der vorliegenden Erfindung ist ein Verfahren zum Schleifen eines Messers mit einer Schneidkontur, bei dem das Messer beim Schleifen ortsfest ist und sich ein Schleifmittel entlang der Schneidkontur des Messers bewegt. Another object of the present invention is a method for grinding a knife with a cutting contour, wherein the knife is stationary during grinding and moves an abrasive along the cutting contour of the knife.
Die zu dem erfindungsgemäßen Verfahren gemachten Ausführungen gelten für die erfindungsgemäße Schleifvorrichtung gleichermaßen und umgekehrt. The statements made on the method according to the invention apply equally to the grinding device according to the invention and vice versa.
Vorzugsweise wird das Schleifmittel von einem Antrieb entlang der Schneidkontur bewegt, wobei der Steuerung des Antriebs die Lage der Schneidkontur eindeutig bekannt ist. Preferably, the abrasive is moved by a drive along the cutting contour, wherein the control of the drive, the position of the cutting contour is clearly known.
Gemäß einer weiteren bevorzugten Ausführungsform wird die Lage und/oder die Form der Schneidkontur beim und/oder nach dem Schleifen erfasst und in einem Datenspeicher abgespeichert. According to a further preferred embodiment, the position and / or the shape of the cutting contour during and / or after grinding is detected and stored in a data memory.
Die Erfindungen werden im Folgenden anhand der Figuren 1 bis 4 erläutert. The inventions are explained below with reference to Figures 1 to 4.
Diese Erläuterungen sind lediglich bespielhaft und schränken den allgemeinen Erfindungsgedanken nicht ein. Die Erläuterungen gelten für alle Gegenstände der vorliegenden Erfindung gleichermaßen. Figuren 1 bis 4 zeigen jeweils die erfindungsgemäße Schleifvorrichtung. These explanations are merely illustrative and do not limit the general inventive concept. The explanations apply equally to all articles of the present invention. FIGS. 1 to 4 each show the grinding device according to the invention.
Die Figuren 1 bis 4 zeigen jeweils die erfindungsgemäße Schleifvorrichtung, die ein Grundgestell 5 mit einer Messeraufnahme 6 aufweist, die nicht verschieblich an dem Grundgestell vorgesehen ist, d.h. die Messeraufnahme lässt sich nicht relativ zu dem Grundgestell verschieben, zumindest während des Schleifens. An dieser Messeraufnahme ist ein Messer 1 , in dem vorliegenden Fall ein Sichelmesser, fest angeordnet; d.h. das Messer bewegt sich zumindest beim Schleifen, insbesondere in seiner Befestigungsebene, nicht. Figures 1 to 4 each show the grinding device according to the invention, which has a base frame 5 with a blade holder 6 which is not slidably provided on the base frame, i. the knife holder can not be moved relative to the base frame, at least during grinding. At this knife holder a knife 1, in the present case a sickle knife, fixedly arranged; i.e. the knife does not move at least during grinding, especially in its mounting plane.
Desweiteren weist die erfindungsgemäße Schleifvorrichtung ein angetriebenes Schleifmittel 2, insbesondere eine rotierende Schleifscheibe, auf. Mit der Schleifscheibe kann sowohl die Vorder- als auch die Rückseite der Schneidkontur 7 geschliffen werden. Zum Schleifen bewegt sich das Schleifmittel entlang der Kontur des Messers. Dafür weist die erfindungsgemäße Schleifvorrichtung einen Antrieb, in den vorliegenden Fall einen Längsantrieb 3 und einen Querantrieb 4 auf, mit dem das Schleifmittel 2 entlang der Schneidkontur 7 des Messers 1 bewegt werden kann. Furthermore, the grinding device according to the invention has a driven abrasive 2, in particular a rotating grinding wheel. With the grinding wheel, both the front and the back of the cutting contour 7 can be ground. For grinding, the abrasive moves along the contour of the knife. For this purpose, the grinding device according to the invention has a drive, in the present case a longitudinal drive 3 and a transverse drive 4, with which the abrasive 2 can be moved along the cutting contour 7 of the blade 1.
Die Figuren 1 bis 4 zeigen jeweils eine andere Stellung des Schleifmittels 2 relativ zu der Schneidkontur 7 des Messers 1 . Erfindungsgemäß weist die Schleifvorrichtung eine Steuerung (nicht dargestellt) auf, in der Daten über die Lage der Schneidkontur 7 des Schneidmessers und/oder deren Form hinterlegt sind. Diese Daten können bereits in dem Datenspeicher hinterlegt sein. Alternativ oder zusätzlich ist es aber auch möglich die Form und/oder Lage der Schneidkontur vor dem Schneiden zu erfassen, beispielsweise durch Abtasten zu erfassen und die so gewonnenen Daten in einem Datenspeicher zu hinterlegen. Diese vorhandenen und/oder ermittelten Daten werden sodann eingesetzt um die Bewegung des Schleifmittels relativ zu der Schneidkontur zu steuern. Die Daten können nicht nur Informationen über die Lage der Schneidkontur aufweisen, sondern vorzugsweise auch Daten über den Lokal vorhandenen Schneidwinkel und/oder den Lokal vorhandenen Freiwinkel zu erhalten. Beim oder nach dem Schleifen kann die Schneidkontur erneut vermessen werden und die Daten in einem Datenspeicher, der sich beispielsweise an oder auf dem Messer befindet, beispielsweise ein RFID, hinterlegt werden. Die Daten können dann von einer Aufschneidevorrichtung ausgelesen werden, um das geschliffene Messer mit einer etwas veränderten Schneidkontur optimal auf der Aufschneidevorrichtung zu positionieren. Die Daten können aber auch beim nächsten Schleifen herangezogen werden, so dass das Schleifmittel die hinterlegte Schneidkontur abfährt. FIGS. 1 to 4 each show a different position of the abrasive 2 relative to the cutting contour 7 of the knife 1. According to the invention, the grinding device has a control (not shown) in which data about the position of the cutting contour 7 of the cutting blade and / or its shape are deposited. This data can already be stored in the data memory. Alternatively or additionally, however, it is also possible to detect the shape and / or position of the cutting contour before cutting, for example, to detect by scanning and to store the data thus obtained in a data memory. These existing and / or determined data are then used to control the movement of the abrasive relative to the cutting contour. The data can not only have information about the position of the cutting contour, but preferably also to obtain data about the local existing cutting angle and / or the local existing clearance angle. During or after grinding, the cutting contour can be measured again and the data stored in a data memory, which is located for example on or on the knife, for example an RFID. The data can then be read out by a slicing device in order to optimally grind the ground knife with a slightly changed cutting contour on the slicing device position. The data can also be used in the next grinding, so that the abrasive moves off the stored cutting contour.
Bezugszeichenliste: LIST OF REFERENCE NUMBERS
1 Messer, Slicermesser1 knife, slicer knife
2 Angetriebene Schleifscheibe2 powered grinding wheel
3 Längsantrieb 3 longitudinal drive
4 Querantrieb  4 transverse drive
5 Grundgestell  5 base frame
6 Messeraufnahme  6 knife holder
7 Schneidkontur des Messers  7 Cutting contour of the knife

Claims

Patentansprüche: claims:
1 . Schleifvorrichtung zum Schleifen einer Schneidkontur (7) eines Messers (1 ) mit einem Grundgestell (5), einer Messeraufnahme (6) und einem oder mehreren angetriebenen Schleifmitteln (2), dadurch gekennzeichnet, dass die Messeraufnahme (6) starr und dass Schleifmittel (2) an einem oder mehreren Antrieb(en) (3, 4) vorgesehen ist, der/die es beim Schleifen entlang der Schneidkontur (7) des Messers (1 ) bewegt(en). 1 . Grinding device for grinding a cutting contour (7) of a knife (1) comprising a base frame (5), a knife holder (6) and one or more driven abrasives (2), characterized in that the blade holder (6) is rigid and the abrasive means (2 ) is provided on one or more drive (s) (3, 4) which moves it during grinding along the cutting contour (7) of the blade (1).
2. Schleifvorrichtung nach Anspruch 1 , dadurch gekennzeichnet, dass das es eine 2. Grinding device according to claim 1, characterized in that it has a
Steuerung mit einem Datenspeicher aufweist, in dem die Schneidkontur des jeweiligen Messers hinterlegt ist.  Having control with a data storage in which the cutting contour of the respective knife is stored.
3. Schleifvorrichtung, nach einem der voranstehenden Ansprüche, dadurch 3. grinding device according to one of the preceding claims, characterized
gekennzeichnet, dass sie ein Mittel aufweist, das die Lage und/oder Form der Schneidkontur beim und/oder nach dem Schleifen erfasst und abgespeichert.  characterized in that it comprises a means which detects and stores the position and / or shape of the cutting contour during and / or after grinding.
4. Schleifvorrichtung nach einem der voranstehenden Ansprüche, dadurch 4. Grinding device according to one of the preceding claims, characterized
gekennzeichnet, das sie ein Mittel aufweist, um das Messer zu identifizieren.  characterized in that it comprises means for identifying the knife.
5. Schleifvorrichtung nach einem der voranstehenden Ansprüche, dadurch 5. Grinding device according to one of the preceding claims, characterized
gekennzeichnet, dass es ein Mittel aufweist, das Daten auf dem Messer hinterlegt.  characterized in that it comprises means which stores data on the knife.
6. Schleifvorrichtung nach einem der voranstehenden Ansprüche, dadurch 6. Grinding device according to one of the preceding claims, characterized
gekennzeichnet, dass es Befestigungsmittel aufweist, um das Messer in einer eindeutigen Lage an der Messeraufnahme zu befestigen.  characterized in that it has fastening means to secure the knife in a unique position on the blade holder.
7. Verfahren zum Schleifen eines Messers (1 ) mit einer Schneidkontur (7), dadurch gekennzeichnet, dass das Messer (1 ) beim Schleifen ortsfest ist und sich ein 7. A method for grinding a knife (1) with a cutting contour (7), characterized in that the knife (1) is stationary during grinding and a
Schleifmittel (2) entlang der Schneidkontur (7) des Messers bewegt.  Abrasive (2) along the cutting contour (7) of the knife moves.
8. Verfahren nach Anspruch 7, dadurch gekennzeichnet, dass das Schleifmittel von einem Antrieb (3, 4) entlang der Schneidkontur bewegt wird, dessen Steuerung die Lage der Schleifkontur bekannt ist. 8. The method according to claim 7, characterized in that the abrasive is moved by a drive (3, 4) along the cutting contour, the control of the position of the grinding contour is known.
9. Verfahren nach einem der Ansprüche 7 oder 8, dadurch gekennzeichnet, dass die Lage und/oder Form der Schneidkontur beim und/oder nach dem Schleifen erfasst wird. 9. The method according to any one of claims 7 or 8, characterized in that the position and / or shape of the cutting contour during and / or after grinding is detected.
PCT/EP2016/082017 2015-12-21 2016-12-20 Grinding device having a movable grinding means WO2017108851A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015226203 2015-12-21
DE102015226203.0 2015-12-21

Publications (1)

Publication Number Publication Date
WO2017108851A1 true WO2017108851A1 (en) 2017-06-29

Family

ID=57680257

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2016/082017 WO2017108851A1 (en) 2015-12-21 2016-12-20 Grinding device having a movable grinding means

Country Status (1)

Country Link
WO (1) WO2017108851A1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001038598A (en) * 1999-07-26 2001-02-13 Prima Meat Packers Ltd Automatic polisher
US6371835B1 (en) * 1999-12-23 2002-04-16 Kraft Foods, Inc. Off-line honing of slicer blades
WO2006066259A2 (en) * 2004-12-17 2006-06-22 Milwaukee Electric Tool Corporation Smart acessories for power tools
DE102014108956A1 (en) * 2013-06-28 2014-12-31 Fanuc Corporation Device for deburring with visual sensor and force sensor

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001038598A (en) * 1999-07-26 2001-02-13 Prima Meat Packers Ltd Automatic polisher
US6371835B1 (en) * 1999-12-23 2002-04-16 Kraft Foods, Inc. Off-line honing of slicer blades
WO2006066259A2 (en) * 2004-12-17 2006-06-22 Milwaukee Electric Tool Corporation Smart acessories for power tools
DE102014108956A1 (en) * 2013-06-28 2014-12-31 Fanuc Corporation Device for deburring with visual sensor and force sensor

Similar Documents

Publication Publication Date Title
EP2384852A2 (en) Device for grinding hand knives
DE102005013363B4 (en) Machine for sharpening rotary knives
DE202012012624U1 (en) Device for grinding rotary knives
DE4440941C1 (en) Method and device for resharpening the knives of shredding machines with a two-dimensional cutting system, in particular of cutting machines for logs
EP2071991B1 (en) Cutting board
DE3618071C2 (en)
EP3001823B1 (en) Device and method for sharpening rotary knives
EP3218146B1 (en) Method for sharpening a knife
EP2810738B1 (en) Apparatus for grinding at least one knife
DE102013007275A1 (en) Food slicing knife with a radio transponder
WO2017108851A1 (en) Grinding device having a movable grinding means
EP2603352B1 (en) Blade grinder comprising a blade holder
DE10355521A1 (en) Apparatus and method for separating tobacco from a tobacco cake
DE102009038875A1 (en) drive motor
DE102012005566A1 (en) Device for sharpening e.g. sickle or circle knives, for slice for slicing food products, has controlling unit utilizing determined cutting course for controlling relative movement between sharpening tools and rotatable knife
DE102012220233B4 (en) Processing device with a rotatable tool receiver
EP3124189B1 (en) Slicing device
DE2006889A1 (en) Machine tool with combined workpiece gauge and workpiece setting device
DE1962559A1 (en) Grinding machine
DE102006006065A1 (en) Cutting tool e.g. knife, has crop, which has pointed tapering on both sides of blade, pertaining to blade level in direction of handle, where crop is designed in triangular shape on back side of blade
DE20314246U1 (en) Dicing machine for food preparation has a rotating blade with support brace to control the spacing from a selected dicing grid to vary the cutting size
DE207241C (en)
DE248875C (en)
DE841984C (en) Copy milling machine
DE700131C (en) Copy milling device for milling curves on discs and drums

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 16819541

Country of ref document: EP

Kind code of ref document: A1

DPE1 Request for preliminary examination filed after expiration of 19th month from priority date (pct application filed from 20040101)
NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 16819541

Country of ref document: EP

Kind code of ref document: A1