EP2162266B1 - Couteau - Google Patents

Couteau Download PDF

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Publication number
EP2162266B1
EP2162266B1 EP20080785722 EP08785722A EP2162266B1 EP 2162266 B1 EP2162266 B1 EP 2162266B1 EP 20080785722 EP20080785722 EP 20080785722 EP 08785722 A EP08785722 A EP 08785722A EP 2162266 B1 EP2162266 B1 EP 2162266B1
Authority
EP
European Patent Office
Prior art keywords
cutting
blade
angle
accordance
edge
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
EP20080785722
Other languages
German (de)
English (en)
Other versions
EP2162266A1 (fr
Inventor
Günther Weber
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.)
Weber Maschinenbau GmbH Breidenbach
Original Assignee
Weber Maschinenbau GmbH Breidenbach
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 Weber Maschinenbau GmbH Breidenbach filed Critical Weber Maschinenbau GmbH Breidenbach
Publication of EP2162266A1 publication Critical patent/EP2162266A1/fr
Application granted granted Critical
Publication of EP2162266B1 publication Critical patent/EP2162266B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/0006—Cutting members therefor
    • 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
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/0006—Cutting members therefor
    • B26D2001/0046—Cutting members therefor rotating continuously about an axis perpendicular to the edge
    • 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
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/0006—Cutting members therefor
    • B26D2001/0053—Cutting members therefor having a special cutting edge section or blade section
    • 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
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/0006—Cutting members therefor
    • B26D2001/006—Cutting members therefor the cutting blade having a special shape, e.g. a special outline, serrations
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/929—Tool or tool with support
    • Y10T83/9372—Rotatable type
    • Y10T83/9403—Disc type

Definitions

  • the invention relates to a cutting blade for machines for slicing food products, in particular for high-speed slicers, according to the preamble of claim 1.
  • Such cutting blades are from the EP 1 598 159 A1 known.
  • the knives used for use on slicers and in particular on high-speed slicers usually have a shell-like or bowl-like shape in the broadest sense, ie on their side facing a product to be sliced during the cutting operation, the knife body is set back from the cutting plane defined by the cutting edge of the knife. This ensures that compressions of the product to be sliced are largely avoided.
  • this one-sided bowl or bowl shape of the knife practically does not affect the product itself during the cutting operation; To avoid the cutting blade only the product slice just separated, which is unproblematic due to their ease of deformability.
  • the cutting angle is that angle which is located on the radially outer circumference of the cutting blade flat surface, which is hereinafter also referred to as cutting surface and whose radially outer end is formed by the cutting edge, with the perpendicular to Including axis of rotation of the knife extending cutting plane.
  • the size of the cutting angle ie the steepness of the cutting surface, determines on the one hand the influence of the product to be sliced and, on the other hand, the manner of depositing the respectively separated product slice by the cutting knife. It should be noted that in conjunction with modern Hoch Anthonysslicern straight sickle blade for particularly high speeds are used. These cutting speeds are, for example, up to 2,000 cuts per minute, ie high-speed slicers equipped with sickle knives can easily separate more than 30 product slices per second.
  • the size of the cutting angle is chosen depending on the product and application specific conditions.
  • the cutting edge angle constant along the cutting edge always represents a compromise with respect to the products to be sliced.
  • a too large cutting angle, i. too steep a cutting surface it should be avoided as possible, as this exerted too much pressure on the product and the product could thus be exposed to unacceptable compression.
  • a small cutting angle, i. a relatively flat set cutting surface results in gentle gentle cuts that do not compress the product unnecessarily.
  • the cutting blade is set too flat, the product slices can not be "wedged" in the desired manner.
  • the object of the invention is to develop a cutting blade of the type mentioned in such a way that it is all product or application-specific Conditions can be met, in particular by the cutting blade caused product compressions minimized and caused by the cutting blade product storage to be optimized.
  • the cutting edge angle is selectively varied to a relevant extent along the cutting edge, which has noticeable effects in the cutting operation, in particular on the extent of product upsets caused by the cutting blade and on the nature of the product tray caused by the knife.
  • the invention makes it possible to adapt the size of the cutting edge angle to the course of the cutting process.
  • the cutting edge angle may be chosen depending on how this peripheral region interacts with the respective product during the cutting process.
  • Sickle knives are used so that they are at the beginning of a Immerse the cutting process with a peripheral area in the product at which the radius - ie the distance of the cutting edge of the axis of rotation of the knife - is the smallest. From a certain angle of rotation, which corresponds to a certain peripheral region of the cutting edge, the dipping process of the knife is completed in the product.
  • the cutting blade moves through the product, wherein the radius due to the particular spiral-like course of the cutting edge with respect to the axis of rotation increases steadily.
  • These conditions can be used according to the invention to adjust the size of the cutting angle as a function of the angle of rotation or the peripheral region - for example, based on the plunge angle or immersion area - to optimize the overall cutting process.
  • the setting options are no limits.
  • the cutting blades can be optimized individually due to the variability of the cutting angle according to the invention.
  • the cutting edge angle increases continuously over the entire circumferential cutting edge.
  • the cutting edge angle increases, ie the cutting edge on the rear side of the blade which is radially outwardly bounded by the cutting edge becomes progressively steeper during the cutting process.
  • the cutting edge has an immersion region, with which the cutting blade, when used as intended, is immersed in a product to be sliced during the cutting operation, wherein the cutting angle is smallest in the immersion region.
  • This embodiment takes advantage of the recognition that product upsets through the cutting blade are largest at the moment the cutting knife is immersed in the product.
  • a comparatively small cutting angle for the immersion region of the cutting blade and, in particular, the smallest cutting angle formed on the cutting blade product upsets are consequently minimized by the cutting blade according to the invention.
  • the cutting angle can then increase steadily in particular. This ensures that, during the further course of the cutting process and in particular after completion of the dipping phase, the cutting edge angle has a size or steepness corresponding to a desired wedge of the respective product wafer or for a faster and ensures better storage of the product disc, as would be the case with a consistently flat cutting angle.
  • the change of the cutting angle takes place in particular without the formation of steps in the cutting surface. As a result, the product is disturbed as little as possible during slicing.
  • the cutting angle profile i. the course of the size of the cutting angle along the cutting edge, be designed as desired.
  • the rate at which the cutting angle changes may be constant, depending on e.g. be different in size from the angle of rotation of the blade, so from the respective peripheral region of the cutting edge, but also for different peripheral regions.
  • the cutting angle changes in a range of about 20 ° to 30 °.
  • the knife edge can also have flatter or steeper areas.
  • the cutting surface has a width that varies depending on the size of the cutting edge angle.
  • the width of the cutting surface may vary within a range of 0.5 mm to 1.5 mm.
  • the cutting edge extends in particular over an angle between 180 ° and 360 °. In one possible embodiment, the length of the cutting edge in the circumferential direction is approximately 270 °.
  • a further surface is formed radially inside the cutting surface, which forms part of the knife back and forms an angle with the cutting plane, which is constant in the circumferential direction and smaller than the smallest cutting angle.
  • the cutting surface and the further surface can adjoin one another directly.
  • at least one transition surface is formed between the cutting surface and the further surface.
  • the preparation of the cutting blade according to the invention should be discussed here only insofar as it is preferably provided that the cutting surface is formed by grinding a precursor produced accordingly.
  • This in Fig. 1 illustrated sickle blade according to the invention comprises a spiral about a rotation axis 11 encircling cutting edge 13, which extends approximately over an angular range of 270 ° and is located in a direction perpendicular to the axis of rotation 11 extending cutting plane.
  • the distance of the cutting edge 13 from the axis of rotation 11, so the radius R of the cutting blade increases continuously, namely against a rotational direction T, in which the cutting blade rotates about the axis of rotation 11 during the cutting operation.
  • the sickle knife according to the invention is intended for use on a high speed slicer.
  • These slicers are provided with a so-called cutting or knife head, which has a rotary shaft 11 defining drive shaft for the cutting blade.
  • a rotary shaft 11 defining drive shaft for the cutting blade.
  • opening 29 is formed.
  • Other fastening means, such as in particular arranged around the opening 29 around holes for screwing the cutting blade on the cutting head of the slicer are not shown for simplicity.
  • Such sickle blades are characterized by the fact that they - as already mentioned in the introductory part - dive with a range A in the réellegande product for which the radius R is the smallest.
  • the rotating cutting blade moves through the product, wherein successively indicated here only by way of example peripheral areas A, B, C and D of the knife with the product interact.
  • peripheral region D the radius R of the blade is greatest.
  • the sickle blade according to the invention has a bowl or dish-like shape.
  • the knife inner side 27 is set back relative to the cutting plane 15 running perpendicular to the axis of rotation 11, a free space 25 is provided on the side of the knife facing the product 19 to be sliced during the cutting operation.
  • This bowl or bowl shape of the knife already significantly reduces product compression.
  • the blade rear side 21 is formed radially outwardly by a flat cutting surface 17 which is bounded radially outwardly by the cutting edge 15 defining the cutting edge 13. Radially inside, the cutting surface 17 is followed by a further flat surface 23.
  • the cross section of the cutting blade according to the invention subsequent to the cutting surface 17 may be of the in Fig. 2 deviate embodiment shown and basically vary as desired.
  • the related concrete profile of the knife is also chosen with regard to the best possible inherent stability of the knife.
  • the cutting surface 17 includes with the cutting plane 15 an angle ⁇ , which is greater than the angle ⁇ between the cutting plane 15 and the further surface 23.
  • the cutting surface 17 further has a width W.
  • the cutting angle ⁇ along the cutting edge 13 is not constant. Rather, it is provided that the cutting angle varies depending on the radius R of the cutting edge 13.
  • Fig. 3 illustrates a possible embodiment for such a "profile" of the cutting angle in the circumferential direction.
  • the Fig. 3a - 3d each show a cross section of the cutting blade accordingly Fig. 2 for one of the in Fig. 1 indicated peripheral areas A - D.
  • Fig. 3a is in the immersion area A of the cutting blade, where the radius is smallest, the cutting angle ⁇ 1 also smallest. Since in this embodiment, the angle ⁇ between the cutting plane 15 and adjacent to the cutting surface 17 further surface 23 is constant in the circumferential direction and between cutting surface 17 and further surface 23 at any point in the circumferential direction one or more transition surfaces are provided, the width W is the Cutting surface 17 in the immersion region A largest.
  • the cutting surface 17 With increasing angle of rotation (contrary to the direction of rotation T; Fig. 1 ), the cutting surface 17 is progressively steeper, ie the cutting angle ⁇ increases. Accordingly, the width W of the cutting surface 17 decreases.
  • angles .alpha. And .beta are purely exemplary in nature and may vary as desired depending on the products to be sliced and the specific applications, not only in terms of absolute sizes but also in terms of the general course of the "angle profile" in the circumferential direction.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Food-Manufacturing Devices (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Apparatuses For Bulk Treatment Of Fruits And Vegetables And Apparatuses For Preparing Feeds (AREA)
  • Crushing And Pulverization Processes (AREA)

Claims (13)

  1. Couteau pour machines destinées à découper des produits alimentaires, en particulier pour trancheuse à haute vitesse, ledit couteau étant un couteau en forme de faucille en rotation autour d'un axe de rotation (11) pendant le fonctionnement de découpe, qui présente à sa périphérie radialement extérieure un fil de coupe (13) de forme différente d'une forme circulaire, en rotation en particulier à la manière d'une spirale autour de l'axe de rotation (11), qui est disposé dans un plan de coupe (15) perpendiculaire à l'axe de rotation (11), dans lequel le fil de coupe (13) forme l'extrémité radialement extérieure d'une surface de coupe (17) qui forme une partie de la face dorsale (21) du couteau détournée pendant le fonctionnement en découpe par rapport à un produit (19) à découper et qui définit un angle de coupe (α) avec le plan de coupe (15), et
    dans lequel la taille de l'angle de coupe (α) varie en direction périphérique,
    caractérisé en ce que
    l'angle de coupe (α) augmente en continu sur la totalité du fil de coupe (13) s'étendant en direction périphérique.
  2. Couteau selon la revendication 1,
    caractérisé en ce que le couteau présente une direction de rotation (T) conforme à sa destination, et l'angle de coupe (α) augmente en sens contraire à la direction de rotation (T).
  3. Couteau selon l'une des revendications précédentes,
    caractérisé en ce que l'angle de coupe (α) augmente au fur et à mesure de l'augmentation de la distance radiale (R) du fil de coupe (13) depuis l'axe de rotation (11).
  4. Couteau selon l'une des revendications précédentes,
    caractérisé en ce que le fil de coupe (13) comporte une zone de pénétration (A) par laquelle le couteau pénètre dans un produit à découper (19) pendant le fonctionnement en découpe suivant une utilisation conforme à sa destination, et l'angle de coupe (α) est minimum dans la zone de pénétration (A).
  5. Couteau selon l'une des revendications précédentes,
    caractérisé en ce que la variation de l'angle de coupe (α) a lieu sans formation de gradins dans la surface de coupe (17).
  6. Couteau selon l'une des revendications précédentes,
    caractérisé en ce que l'angle de coupe (α) varie dans une plage d'environ 20° à 30°.
  7. Couteau selon l'une des revendications précédentes,
    caractérisé en ce que la surface de coupe (17) présente une largeur (W) qui varie en fonction de la taille de l'angle de coupe (α).
  8. Couteau selon l'une des revendications précédentes,
    caractérisé en ce que la largeur (W) de la surface de coupe (17) varie dans une plage d'environ 0,5 mm à 1,5 mm.
  9. Couteau selon l'une des revendications précédentes,
    caractérisé en ce que le fil de coupe (13) s'étend sur un angle qui est entre 180° et 360°, et s'élève en particulier à environ 270°.
  10. Couteau selon l'une des revendications précédentes,
    caractérisé en ce que, radialement à l'intérieur de la surface de coupe (17), il est formé une autre surface (23) qui forme une partie de la face dorsale (21) du couteau et définit avec le plan de coupe (15) un angle (β) qui est constant en direction périphérique et qui est inférieur au plus petit angle de coupe (α).
  11. Couteau selon la revendication 10,
    caractérisé en ce que la surface de coupe (17) et ladite autre surface (23) sont directement mutuellement adjacentes.
  12. Couteau selon la revendication 10,
    caractérisé en ce qu'au moins une surface de transition est formée entre la surface de coupe (17) et ladite autre surface (23).
  13. Couteau selon l'une des revendications précédentes,
    caractérisé en ce que la surface de coupe (17) est réalisée par meulage.
EP20080785722 2007-08-27 2008-08-27 Couteau Active EP2162266B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007040350A DE102007040350A1 (de) 2007-08-27 2007-08-27 Schneidmesser
PCT/EP2008/007021 WO2009027080A1 (fr) 2007-08-27 2008-08-27 Couteau

Publications (2)

Publication Number Publication Date
EP2162266A1 EP2162266A1 (fr) 2010-03-17
EP2162266B1 true EP2162266B1 (fr) 2012-05-02

Family

ID=40082072

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20080785722 Active EP2162266B1 (fr) 2007-08-27 2008-08-27 Couteau

Country Status (6)

Country Link
US (1) US8424436B2 (fr)
EP (1) EP2162266B1 (fr)
AT (1) ATE555882T1 (fr)
DE (1) DE102007040350A1 (fr)
ES (1) ES2387006T3 (fr)
WO (1) WO2009027080A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013217137A1 (de) 2013-08-28 2015-03-05 Weber Maschinenbau Gmbh Breidenbach Vorrichtung und Verfahren zum Schleifen von Rotationsmessern
DE102020103045A1 (de) 2020-02-06 2021-08-12 Multivac Sepp Haggenmüller Se & Co. Kg Messer sowie damit ausgestattete Aufschneide-Maschine

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004059479B4 (de) * 2004-05-13 2006-04-06 Astor Schneidwerkzeuge Gmbh Rotationsmesser
DE102008019776A1 (de) * 2008-04-18 2009-10-22 CFS Bühl GmbH Verfahren, Vorrichtung sowie Messer zum Aufschneiden von Lebensmitteln
DE102011103462A1 (de) 2011-06-03 2012-12-06 Thomas Völkl Schneidmesser
DE102011103418A1 (de) 2011-06-06 2012-12-06 Weber Maschinenbau Gmbh Breidenbach Vorrichtung und Verfahren zum Schleifen von Rotationsmessern
DE102012005566A1 (de) 2012-03-20 2013-09-26 Weber Maschinenbau Gmbh Breidenbach Vorrichtung und Verfahren zum Schleifen von Rotationsmessern
EP3175952A3 (fr) 2011-06-06 2017-06-28 Weber Maschinenbau GmbH Breidenbach Dispositif et procédé de fabrication d'affûtage de couteaux tournant
DE102012007250A1 (de) 2012-04-11 2013-10-17 Weber Maschinenbau Gmbh Breidenbach Schneidmesser
DE102012007290A1 (de) 2012-04-12 2013-10-17 Weber Maschinenbau Gmbh Breidenbach Schneidmesser mit Abweiselement
AU2014210014A1 (en) 2013-01-25 2015-08-06 Gea Food Solutions Germany Gmbh Cutting blade having a changing cutting angle
DE102013216717A1 (de) * 2013-08-22 2015-02-26 Weber Maschinenbau Gmbh Breidenbach Vorrichtung zum Aufschneiden von Lebensmittelprodukten und Verfahren zum Bereitstellen von Zwischenblättern
CN104044170A (zh) * 2014-06-19 2014-09-17 张应鹏 一种密封条切割装置
EP3338972B1 (fr) 2016-12-16 2019-07-17 Weber Maschinenbau GmbH Breidenbach Couteau
DE102017108841A1 (de) 2016-12-16 2018-06-21 Weber Maschinenbau Gmbh Breidenbach Schneidmesser und verfahren zu dessen herstellung
DE102019111227A1 (de) * 2019-04-30 2020-11-05 Dipl.-Ing. Schindler & Wagner Gmbh & Co. Kg Schneidmesser, Hochgeschwindigkeitsslicer und Verfahren zum Aufschneiden von Lebensmittelprodukten
DE102021113631A1 (de) 2021-05-26 2022-12-01 Dipl.Ing. S c h i n d l e r & Wagner GmbH & Co KG Schneidmesser, Verfahren zur Herstellung und Verwendung

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5482166A (en) * 1994-09-06 1996-01-09 Key Technology, Inc. Meat trim sorting
CA2160735A1 (fr) * 1994-10-25 1996-04-26 Larry Chester Gundlach Lame pour decouper des aliments en spirale
DE10054514A1 (de) * 2000-11-03 2002-05-16 Biforce Anstalt Vaduz Vorrichtung zum Aufschneiden von Lebensmittelprodukten
DE102004059479B4 (de) * 2004-05-13 2006-04-06 Astor Schneidwerkzeuge Gmbh Rotationsmesser

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013217137A1 (de) 2013-08-28 2015-03-05 Weber Maschinenbau Gmbh Breidenbach Vorrichtung und Verfahren zum Schleifen von Rotationsmessern
DE102020103045A1 (de) 2020-02-06 2021-08-12 Multivac Sepp Haggenmüller Se & Co. Kg Messer sowie damit ausgestattete Aufschneide-Maschine

Also Published As

Publication number Publication date
US20100162868A1 (en) 2010-07-01
ES2387006T3 (es) 2012-09-11
US8424436B2 (en) 2013-04-23
WO2009027080A1 (fr) 2009-03-05
DE102007040350A1 (de) 2009-03-05
ATE555882T1 (de) 2012-05-15
EP2162266A1 (fr) 2010-03-17

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