EP3218146B1 - Procédé d'aiguisage d'une lame - Google Patents

Procédé d'aiguisage d'une lame Download PDF

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Publication number
EP3218146B1
EP3218146B1 EP15759453.2A EP15759453A EP3218146B1 EP 3218146 B1 EP3218146 B1 EP 3218146B1 EP 15759453 A EP15759453 A EP 15759453A EP 3218146 B1 EP3218146 B1 EP 3218146B1
Authority
EP
European Patent Office
Prior art keywords
data
blade
wear
tear
knife
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.)
Active
Application number
EP15759453.2A
Other languages
German (de)
English (en)
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EP3218146A1 (fr
Inventor
Markus Keller
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.)
GEA Food Solutions Germany GmbH
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 EP3218146A1 publication Critical patent/EP3218146A1/fr
Application granted granted Critical
Publication of EP3218146B1 publication Critical patent/EP3218146B1/fr
Active 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
    • B24B3/46—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
    • 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
    • B24B3/368—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of cutting blades installed as an accessory on another machine
    • 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
    • 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
    • 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
    • B26D5/00—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • 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
    • 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
    • B26D5/00—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D5/005—Computer numerical control means

Definitions

  • the present invention relates to a method for grinding a knife of a slicing device according to the preamble of claim 1, such as from EP 2 796 251 A2 known.
  • the object is achieved with a method for grinding a knife of a slicing device as defined in claim 1.
  • the present invention relates to a method of slicing food products, such as sausage, ham and / or cheese, using a slicer.
  • slicing devices are also referred to by the person skilled in the art as “slicers” or “high-performance slicers”.
  • These slicing devices have a moving, in particular rotating, blade which cuts food slices from the front end of a food product.
  • the knife usually cooperates with a cutting edge, which is provided for example at the front end of a product support and which defines together with the knife the cutting plane in which food slices are separated from the food product.
  • There is a cutting gap between the knife and the cutter bar which should be as small as possible to prevent chipping of parts of the food product.
  • the cutting gap must be so large that the knife does not touch the cutting edge as possible.
  • the cut food slices for example, fall on a storage table, where they are combined into portions. Once a portion is finished, it is removed from the drop area of the knife and slicing of a new portion can begin.
  • idle cuts may be necessary, in which the knife moves, in particular rotates, without food slices are separated from the food product.
  • the slicing device is provided with multiple tracks, ie several food products are cut open by a knife, in particular at least partially simultaneously or at least partially sequentially. For this, the device has its own track for each food product, along which it is transported in the direction of the knife.
  • blade wear data is recorded and preferably stored and that this data is transferred to a grinding device which takes this data into account during grinding.
  • the knife is therefore not ground according to a standard program, but according to the individual wear. This can significantly extend the service life of the knife.
  • the blade wear data includes information about the cut food product and / or the number of cut slices.
  • This preferred embodiment of the present invention takes into account that a knife is loaded differently depending on the food product. For example, when slicing a comparatively hard product, such as salami, a knife is more heavily loaded, i. more dull than when slicing a comparatively soft product, such as brawn. When slicing several food products at the same time, the cutting edge of the knife is stressed over a greater length of the cutting edge than, for example, when slicing a single product. This information may also be important during grinding, in that only a portion or the entire length of the knife, in particular the cutting edge must be ground.
  • the blade wear data comprises information about the temperature of the food product and / or the manufacturer of the product Food product and / or data on the outer contour and / or internal structure of the food product. Temperature data may be important, for example, as to whether a product is hard or soft. For example, a frozen product loads a knife much more than a product that is cut above its freezing point.
  • information about the manufacturer may provide information about the mechanical properties of a product because, for example, the mechanical properties of the same product may vary from one manufacturer to another.
  • the data about the outer contour and / or the inner structure may also be decisive for the wear of a cutting blade.
  • the size of the outer contour ultimately determines the length of the section of the knife that dips into the product.
  • the internal structure is also crucial for the wear of the knife. For example, a fibrous muscle material occupies the cutting blade more than fatty tissue. Also, if present in the food product foreign body, such as a piece of bone, can significantly burden the knife and thereby make dull.
  • the outer contour and / or the inner structure can be determined by detection methods known to the person skilled in the art.
  • the contour and the structure can be determined by a transmission method, for example by means of X-rays.
  • the blade wear data is stored on a data memory located on or in the blade, and a grinding device reads that data out of the memory again and executes the grinding program according to the wear.
  • the slicing and / or grinding device preferably has a computer with a computer program which analyzes the transmitted knife wear data and adapts the grinding program individually to this knife wear data.
  • Individually adapted in the sense of the invention means that at least one grinding program is selected from a plurality of grinding programs. Preferably, however, a unique grinding program for a particular wear condition is calculated or selected.
  • An individually configured grinding program can specify, for example, which section of the knife edge with which intensity, ie. H. in particular force, duration, surface of the knife being machined and / or grinding angle, ground.
  • each knife preferably has identification data that uniquely identifies the knife. These identification data are preferably detected both by the slicing device and by the grinding device. The slicing device then communicates the wear data along with the identification, and as soon as the grinding device has detected the corresponding identification on the knife, the wear data associated with the knife is used to configure or select a grinding program.
  • data on the grinding and / or usage history are stored for at least one, preferably each, knife.
  • the storage can take place on the data memory, which is preferably provided in or on the knife.
  • the data storage can also be done in a computer, from which it can then be retrieved.
  • the grinding and / or usage history can also be used to configure the grinding program. For example, it may be possible that after a certain number of grinding operations and / or based on a certain number of use cycles a so-called ground grinding is necessary, in which the sharpness of the blade and / or the angle of the cutting edge must be ground fundamentally new. On the basis of the grinding and / or usage history, it is also possible to determine when a knife must be replaced. This replacement process can then be initiated in time enough so that no production losses occur.
  • the knife preferably has an identifier by means of which it is uniquely identifiable.
  • This identifier can be stored in the data memory, but it can also be stored as machine- and / or human-readable code on the knife itself.
  • this identifier is read, preferably from the corresponding device, or communicated to the device by the operator.
  • the data which are located in the memory, connected to the identifier read or stored connected to the identifier.
  • the identifier has data about the material of the knife and / or the cutting edge.
  • the data may include information about the date of manufacture of the knife. This information can also be used when configuring the grinding program.
  • the wear data includes information on how many times the cutting blade made contact with the cutter bar in the relevant wear period between two grinding operations.
  • Such a contact can arise, for example, when setting the cutting gap and usually results in that the cutting edge of the knife is particularly stressed. Such stress must be considered in the grinding program.
  • the wear data comprises information about the use of interleavers.
  • the cutting of interleaves claimed the cutting edge of the cutting blade, especially locally, very strong, so that this point may need to be processed differently than the rest of the cutting edge.
  • the wear data includes information about the position of the blade relative to the bearing surface of the product and / or relative to the product, because that position can decide where and how the cutting edge is loaded and thus becomes dull.
  • the speed of rotation of the blade is also preferably stored because it can also be decisive for the mechanical stress on the cutting edge of the blade.
  • the wear data also includes information about the number of idle cuts of the knife because these idle cuts do not stress the cutting edge of the cutting knife.
  • FIG. 1 shows a slicing device 5.
  • the slicing device 5 has a knife 11 which cuts a food product 2 in food slices 12.
  • each food product 2 with a conveying means 4, in this case two conveyor belts 4, is transported continuously or intermittently in the direction of the cutting plane 6 of the knife 11.
  • the lower conveyor belt 4 is at the same time a product support.
  • the cutting blade 11 is fixed to a rotating blade holder 3 and cooperates with a cutting edge 19 cutting, which is provided for example at the front end of a product support 4 and jointly define the cutting plane 6.
  • a so-called cutting gap is present, which should be as small as possible, but must be so large that the knife does not touch the cutting edge. This gap must be adjusted regularly.
  • the slicing device may have one gripper (not shown) for each feed path, which advances the rear end 13 of the food product 2 or grips it during slicing and stabilizes it during slicing.
  • the slicing device is provided in multiple tracks, ie that several food products 2 are cut open by a knife, in particular at least temporarily at the same time or at least temporarily sequentially.
  • the device for Each food product has its own track 7, along which it is transported in the direction of the knife 11.
  • the knife has a data memory 8.
  • this is an RFID.
  • the knife has an identification, which is particularly preferably machine-readable.
  • the slicing device to a read / write unit 9, which, as shown by the double arrow 10, at least unidirectionally, preferably bidirectionally, can exchange data with the data memory.
  • the read / write unit 9 is a writing unit that stores data on the wear of the knife in the data memory.
  • the read / write unit 9 can also have a data line (not shown) which is connected to a grinding device 15 (cf. Fig. 2 ) in order to obtain data on the wear of the respective blade 11.
  • the blade of the knife In the slicing process, d. H. when the knife hits and penetrates the food product, the blade of the knife is loaded and blunted with each cut.
  • the degree of dulling depends, for example, on the type of food product being sliced and / or its temperature.
  • the cutting edge of the cutting blade blunts depending on the outer contour, the internal structure and / or the number of food products that are cut open at the same time. In particular, by the outer contour or the number of food products that are cut simultaneously, the length over which the cutting edge blunts, influenced. Only this length must then be processed during a grinding process, which reduces the wear of the knife and / or the grinding time.
  • the data on the wear are stored for example in the data memory 8, which is provided in or on the knife, and by a grinding device, which in FIG. 2 is displayed, read out.
  • the grinding device has a read / write unit 16 which reads out the stored data from the data memory 8.
  • the skilled person understands that the data can also be transferred by means of a data transfer detached from the cutting blade from the slicing to the grinding device and / or vice versa.
  • the read-out data is analyzed by a computer unit and configured to a preferably individual cutting program, which takes into account the wear of the knife between two grinding cycles.
  • This computer program preferably controls an abrasive 18.
  • the data on the respective grinding process are also stored and can be taken into account in the configuration of the next grinding process.
  • these data can serve in turn, adjust the slicing device, for example, the position of the knife relative to the product to be sliced or the cutting bar, in order to stress the cutting knife in the following slicing operations in a different area of the cutting edge.
  • the blade wear data can alternatively or additionally be used for this adjustment process.
  • the grinding data may also serve to configure the grinding process and / or determine when the knife must be replaced.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Processing Of Meat And Fish (AREA)
  • Details Of Cutting Devices (AREA)

Claims (14)

  1. Procédé d'affûtage d'une lame d'un dispositif de découpe (5) qui coupe des tranches d'aliment (12) d'un produit alimentaire (2), la lame étant de préférence pourvue d'une mémoire de données (8) et le dispositif de découpe (5) possédant de préférence une unité le lecture/écriture qui lit des données de la mémoire de données (8) et/ou enregistre des données sur la mémoire de données, des données d'usure de la lame étant acquises et de préférence mémorisées pendant la coupe et ces données étant transférées à un dispositif d'affûtage (15) qui affûte la lame en fonction de l'usure détectée, caractérisé en ce que l'usure de la lame comprend des données relatives au nombre de produits alimentaires découpés en parallèle.
  2. Procédé selon la revendication 1, caractérisé en ce que les données d'usure de la lame comprennent des données relatives du produit alimentaire découpé et/ou au nombre de tranches découpées.
  3. Procédé selon la revendication 1, caractérisé en ce que les données d'usure de la lame présentent des informations à propos de la température du produit alimentaire et/ou du fabricant du produit alimentaire et/ou des données relatives au contour extérieur et/ou à la structure interne.
  4. Procédé selon l'une des revendications précédentes, caractérisé en ce que les données d'usure de la lame sont enregistrées sur la mémoire de données (8) et en ce que le dispositif d'affûtage lit les données d'usure de la lame depuis la mémoire de données (8) et exécute le programme d'affûtage en fonction de l'usure.
  5. Procédé selon l'une des revendications précédentes, caractérisé en ce que les données d'usure sont transmises par un transfert de données du dispositif de découpe au dispositif d'affûtage.
  6. Procédé selon l'une des revendications précédentes, caractérisé en ce que les données d'usure de la lame sont enregistrées dans la mémoire de données (8) .
  7. Procédé selon l'une des revendications précédentes, caractérisé en ce que des données relatives à l'historique d'affûtage et/ou d'utilisation sont enregistrées pour chaque lame (11).
  8. Procédé selon l'une des revendications précédentes, caractérisé en ce que la lame est pourvue d'un identifiant qui permet de l'identifier de manière univoque.
  9. Procédé selon la revendication 8, caractérisé en ce qu'avec l'identificateur présente des données relatives au fabricant, au matériau dans lequel est fabriquée la lame, notamment le tranchant, et/ou à la date de fabrication.
  10. Procédé selon l'une des revendications précédentes, caractérisé en ce que les données d'usure présentent des informations à propos du contact de la lame de coupe avec une contre-lame (19).
  11. Procédé selon l'une des revendications précédentes, caractérisé en ce que les données d'usure présentent des informations à propos de l'utilisation de feuillets intercalaires.
  12. Procédé selon l'une des revendications précédentes, caractérisé en ce que les données d'usure présentent des informations à propos de la position de la lame.
  13. Procédé selon l'une des revendications précédentes, caractérisé en ce que les données d'usure présentent des informations à propos de la vitesse de rotation de la lame (11).
  14. Procédé selon l'une des revendications précédentes, caractérisé en ce que les données d'usure présentent des informations à propos du nombre de coupes à vide de la lame (11).
EP15759453.2A 2014-11-11 2015-09-04 Procédé d'aiguisage d'une lame Active EP3218146B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014222953 2014-11-11
PCT/EP2015/070240 WO2016074816A1 (fr) 2014-11-11 2015-09-04 Procédé d'aiguisage d'une lame

Publications (2)

Publication Number Publication Date
EP3218146A1 EP3218146A1 (fr) 2017-09-20
EP3218146B1 true EP3218146B1 (fr) 2018-11-07

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Application Number Title Priority Date Filing Date
EP15759453.2A Active EP3218146B1 (fr) 2014-11-11 2015-09-04 Procédé d'aiguisage d'une lame

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EP (1) EP3218146B1 (fr)
ES (1) ES2709115T3 (fr)
WO (1) WO2016074816A1 (fr)

Families Citing this family (4)

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Publication number Priority date Publication date Assignee Title
EP3366439A1 (fr) * 2017-02-27 2018-08-29 Bizerba SE & Co. KG Machine pour la découpe des aliments avec dispositif pour la supervision de la condition du couteau
US10946546B2 (en) * 2017-09-01 2021-03-16 Paper Converting Machine Company Apparatus and method for automated blade change for tissue saw
DE102019110724A1 (de) * 2019-04-25 2020-10-29 Holac Maschinenbau Gmbh Vorrichtung zum Zerkleinern von Lebensmitteln
BR102021012926A2 (pt) * 2021-06-29 2023-01-10 Mundial INC. Dispositivo de afiação de faca, e método e sistema de reposição de faca

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Publication number Priority date Publication date Assignee Title
DE102012005566A1 (de) * 2012-03-20 2013-09-26 Weber Maschinenbau Gmbh Breidenbach Vorrichtung und Verfahren zum Schleifen von Rotationsmessern
DE102013007275A1 (de) * 2013-04-26 2014-11-13 Weber Maschinenbau Gmbh Breidenbach Lebensmittelaufschneidemesser mit einem Funktransponder

Non-Patent Citations (1)

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Title
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Also Published As

Publication number Publication date
EP3218146A1 (fr) 2017-09-20
ES2709115T3 (es) 2019-04-15
WO2016074816A1 (fr) 2016-05-19

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