EP1561551B1 - Apparatus and device for cutting food - Google Patents

Apparatus and device for cutting food Download PDF

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Publication number
EP1561551B1
EP1561551B1 EP04027549A EP04027549A EP1561551B1 EP 1561551 B1 EP1561551 B1 EP 1561551B1 EP 04027549 A EP04027549 A EP 04027549A EP 04027549 A EP04027549 A EP 04027549A EP 1561551 B1 EP1561551 B1 EP 1561551B1
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EP
European Patent Office
Prior art keywords
food product
cutting
feed direction
accordance
cutting elements
Prior art date
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EP04027549A
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German (de)
French (fr)
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EP1561551A3 (en
EP1561551A2 (en
Inventor
Günther Weber
Hans Aschaber
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ALPMA Alpenland Maschinenbau GmbH
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ALPMA Alpenland Maschinenbau GmbH
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Publication of EP1561551A3 publication Critical patent/EP1561551A3/en
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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
    • 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
    • B26D5/007—Control means comprising cameras, vision or image processing systems
    • 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
    • B26D1/01—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 involving a cutting member which does not travel with the work
    • B26D1/46—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 involving a cutting member which does not travel with the work having an endless band-knife or the like
    • B26D1/50—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 involving a cutting member which does not travel with the work having an endless band-knife or the like with a plurality of band-knives or the like
    • B26D1/52—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 involving a cutting member which does not travel with the work having an endless band-knife or the like with a plurality of band-knives or the like having adjustable spacing between knives
    • 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
    • B26D1/01—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 involving a cutting member which does not travel with the work
    • B26D1/547—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 involving a cutting member which does not travel with the work having a wire-like 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
    • 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
    • B26D1/01—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 involving a cutting member which does not travel with the work
    • B26D1/547—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 involving a cutting member which does not travel with the work having a wire-like cutting member
    • B26D1/553—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 involving a cutting member which does not travel with the work having a wire-like cutting member with a plurality of wire-like cutting members
    • 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
    • B26D3/00—Cutting work characterised by the nature of the cut made; Apparatus therefor
    • B26D3/10—Making cuts of other than simple rectilinear form
    • 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
    • B26D3/00—Cutting work characterised by the nature of the cut made; Apparatus therefor
    • B26D3/24—Cutting work characterised by the nature of the cut made; Apparatus therefor to obtain segments other than slices, e.g. cutting pies
    • 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
    • B26D5/20—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting with interrelated action between the cutting member and work feed
    • B26D5/30—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting with interrelated action between the cutting member and work feed having the cutting member controlled by scanning a record carrier
    • B26D5/34—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting with interrelated action between the cutting member and work feed having the cutting member controlled by scanning a record carrier scanning being effected by a photosensitive device
    • 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 cheese blocks to be divided into cheese bars have lateral bulges and / or top-side bulges, which may arise, for example, during storage of the cheese blocks, wherein the above-mentioned deformations can be caused or reinforced in particular by a space-saving stacking of several cheese blocks.
  • This has the consequence that the cross-sectional areas of the different, simultaneously produced from a block of cheese Cheese bars in perpendicular to the feed direction extending planes have a different shape and / or size.
  • the invention is therefore based on the object, a method of the type mentioned in such a way that the above-described disadvantage is avoidable.
  • this object is achieved by a method in which the food product is moved along a feed direction relative to at least one elongate cutting element, by the features of claim 1.
  • the invention is characterized in that the cutting element can be adjusted in addition to the relative movement between the food product and the cutting element, wherein the adjustment can be made in two opposite directions, which are each oriented perpendicular to the feed direction and perpendicular to the longitudinal extent of the cutting element.
  • the cutting element can be positioned in such a way that jointly cut bars in the direction perpendicular to the feed direction, the cutting element comprehensive level have the same sectional area.
  • a significant advantage of the invention is that the additional adjustment movement can be carried out in particular during the cutting of the food product.
  • the due to the bulges and / or bulges on the length extending in the feed direction extending cross-section of the food product can be compensated by continuous Nachfahren the cutting element to the effect that the jointly cut bars in planes perpendicular to the feed direction respectively equal cross-sectional areas but in particular different contours exhibit
  • Cutting elements are independently adjustable. This makes it possible, for example, that the cutting elements can be adjusted with mutually different pitches, so that even food products that have unbalanced bulges and / or bulges can be cut into bars with equal cross-sectional areas.
  • the can Cutting elements are adjusted in the same direction or in opposite directions.
  • scanning means are provided for the at least partial measurement of the not yet cut part of the food product before and / or during cutting.
  • the adjusting movements of the cutting element can be controllable in dependence on signals supplied by the scanning means and on the feed speed. In this way, on the one hand, the food product can be measured with sufficient accuracy and, on the other hand, a correct dimensioning of the adjusting movements of the cutting element can be ensured.
  • the scanning means are arranged substantially immediately in front of the cutting element, as this also changes of the shape of the food product can be considered, which during the division of the food product into bars, in particular by pushing the food product against the resistance of the cutting element , revealed.
  • the scanning means may comprise a plurality of measuring systems, so that at the same time several pages of the food product can be detected and measured by the scanning means.
  • the food product can be measured from at least three sides, the food product rests with its fourth, in particular substantially flat side on the transport device. At a belt transition of the transport device, however, the food product can also be measured on its lower side.
  • the measuring systems can be designed as optical sensors, in particular laser sensors, laser scanners or line scan cameras.
  • the contours of cross-sectional areas of the food product perpendicular to the feed direction can be measured completely or only in sections. From the respective contour of the food product not yet cut at the measuring position, it is possible to determine the position of the cutting element which is to assume this position when the respective contour is in the sectional plane extending perpendicularly to the feed direction.
  • the measurement of the contours along the food product takes place in discrete steps, wherein the step size may for example be between 0.5 mm and 10 mm.
  • the cutting element can be arranged vertically or horizontally.
  • the cutting element may be formed as a cutting wire, so that it is ensured in the case of cheese blocks that the cheese bars does not adhere to the cutting surface of the cutting element.
  • the one or more cutting wires may be arranged in one or more cutting wire holders, in particular tensioning frames.
  • the cutting element may additionally be movable in a plane extending in the longitudinal extent of the cutting element and / or parallel to the feed direction.
  • the cutting element can be moved up and down along its longitudinal extension, formed oscillatingly circumferentially and / or about a direction of rotation directed perpendicular to the feed direction and perpendicular to the longitudinal extent of the cutting elements be rotatable.
  • the force required for the penetration of the cutting element into the food product can be reduced, so that the food product can be cut uniformly and in a straight line.
  • two laser sensors 22 are provided which, with respect to the feed direction 20 are arranged laterally of the cheese block 18 and immediately in front of the cutting wires 12.
  • the scanning beams 24 of the laser sensors 22 are each directed to the cheese block 18 so that it can be measured from at least two directions, wherein the measurement of the cheese block 18 before and during the cutting can be performed.
  • the cutting wires 12 are adjustable by means of an adjusting device, not shown, perpendicular to the feed direction 20 and perpendicular to its vertically directed longitudinal extent.
  • the two possible adjustment directions 26 of the cutting wires 12 are indicated by a double arrow.
  • the two cutting wires 12 are independently adjustable.
  • the adjustment movements of the cutting wires 12 are controllable in response to signals that can be calculated from the survey data of the laser sensors 22 as a function of the feed rate and the distance between the measurement plane of the laser sensors 22 and the cutting wires 12.
  • guide means for example linear centerings, can be provided, which are not shown in FIGS. 1 and 2, however.
  • the cheese block 18 is pushed in the direction of the cutting wires 12 by means of the conveyor belt 16, the piston 17 and possibly further pushing elements (not shown).
  • the cheese block 18 is scanned by means of the laser sensors 22 from the two lateral directions shown in FIG. 1, wherein the contours 28 of cross-sectional surfaces of the cheese block 18 perpendicular to the feed direction 20 only partially, so for example not measured from above.
  • the measurement of the contours 28 along the block of cheese 18 takes place in discrete steps.
  • the two laser sensors 22 are located above the plane defined by the upper side of the cheese block 18 and the laser sensors 22 can scan not only horizontally but in a scanning plane perpendicular to the feed direction 20, then the contour 28 on the upper side can be seen to the left in the feed direction 20 and right side of the cheese block 18 are measured.
  • a third laser sensor or a plurality of laser sensors which scan the upper side of the cheese block 18.
  • the block of cheese 18 When the block of cheese 18 reaches the cutting elements 12, it is pressed through the latter and cut into three cheese trays 30, 32, 34 extending in the feed direction 20 (FIG. 2).
  • the cutting elements 12 are thereby adjusted during the cutting of the cheese block 18 such that in perpendicular to the feed direction 20 extending levels of the bars 30, 32, 34 of the cheese block 18 each have the same size cross-sectional areas A1, A2, A3, in particular in their respective contours of each other differ.
  • the two cutting wires 12 are moved towards the center of the cheese block 18 toward each other.
  • the adjustment movements of the cutting elements 12 are controlled as a function of the contours 28 of the cross-sectional areas of the cheese block 18 previously measured by means of the laser sensors 22. Without the adjustment movements according to the invention, the cutting wires 12 would cut the cheese block 18 in a straight line, which would disadvantageously result in the cross-sectional areas A1, A2, A3 due to the lateral bulges of the cheese block 18 would be different from each other.

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Mechanical Engineering (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Dairy Products (AREA)
  • Confectionery (AREA)
  • Formation And Processing Of Food Products (AREA)
  • Preparation Of Fruits And Vegetables (AREA)

Abstract

The machine (10) for cutting a food product, e.g. slicing a block of cheese, has a longitudinal wire cutter (12) and a transport mechanism (16,17) to move the food product (18) in an advance direction (20) in relation to the cutter wire. When in operation, the cutter wire is adjustable at right angles to the advance movement direction and at right angles to the cutter longitudinal line. An optical sensor (22) registers the contour (28) of the food product, especially as a laser sensor, laser scanner or a line camera, to set the movements of the cutting wire.

Description

Die Erfindung betrifft ein Verfahren zum Schneiden von Lebensmittelprodukten in mehrere Teile, wobei wenigstens ein lang gestrecktes Schneidelement vorgesehen ist und das Lebensmittelprodukt entlang einer Vorschubrichtung relativ zu dem lang gestreckten Schneidelement bewegt wird. Ein derartiges Verfahren ist aus GB 2 234 668 A bekannt. US 2002/ 0152861 A1 beschreibt ein Sägewerk zum Zersägen von krummen Baustämmen in Bretter, wobei Bandsägeblätter während des Schneidens senkrecht zu der Vorschubrichtung der Baumstämme verstellbar sind.The invention relates to a method for cutting food products into a plurality of parts, wherein at least one elongated cutting element is provided and the food product is moved along a feed direction relative to the elongated cutting element. Such a procedure is over GB 2 234 668 A known. US 2002/0152861 A1 describes a sawmill for sawing curved logs in boards, wherein band saw blades are adjustable during cutting perpendicular to the feed direction of the tree trunks.

Es ist grundsätzlich bekannt, ein Lebensmittelprodukt, insbesondere einen Käseblock, in mehrere, möglichst gleich große stangenförmige Riegel zu teilen, wobei üblicherweise das Lebensmittelprodukt mittels einer Transporteinrichtung in Richtung des Schneidelements bewegt und durch dieses hindurchgedrückt wird. Alternativ kann aber auch das Schneidelement auf das Lebensmittelprodukt zu bewegt werden. Derartige Käseriegel können dann nachfolgend, beispielsweise mittels Slicern, zu einzelnen Käsescheiben aufgeschnitten werden.It is basically known to divide a food product, in particular a block of cheese, into a plurality of rod bars of the same size as possible, wherein the food product is usually moved by means of a transport device in the direction of the cutting element and pushed therethrough. Alternatively, however, the cutting element can also be moved towards the food product. Such cheese jars can then be sliced subsequently, for example by means of slicers, into individual cheese slices.

In der Regel weisen die in Käseriegel aufzuteilenden Käseblöcke jedoch seitliche Ausbauchungen und/oder oberseitige Wölbungen auf, die beispielsweise während der Lagerung der Käseblöcke entstehen können, wobei die obengenannten Deformationen insbesondere durch eine platzsparende Stapelung mehrerer Käseblöcke übereinander hervorgerufen oder verstärkt werden können. Dies hat zur Folge, dass die Querschnittsflächen der verschiedenen, gleichzeitig aus einem Käseblock erzeugten Käseriegel in senkrecht zur Vorschubrichtung verlaufenden Ebenen eine voneinander verschiedene Form und/oder Größe aufweisen.In general, however, the cheese blocks to be divided into cheese bars have lateral bulges and / or top-side bulges, which may arise, for example, during storage of the cheese blocks, wherein the above-mentioned deformations can be caused or reinforced in particular by a space-saving stacking of several cheese blocks. This has the consequence that the cross-sectional areas of the different, simultaneously produced from a block of cheese Cheese bars in perpendicular to the feed direction extending planes have a different shape and / or size.

Dies kann sich vor allem dann als nachteilig erweisen, wenn derartige Käseriegel nachfolgend in möglichst gewichtsgleiche Käsescheiben aufgeschnitten werden sollen. Bei einem Slicer, der mehrere Käseriegel parallel verarbeiten kann, wobei die Dicke der aufgeschnittenen Scheiben der parallel verarbeiteten Käseriegel jeweils gleich groß ist, ergeben sich aufgrund der unterschiedlichen Querschnittsflächen der Käseriegel zwischen den Käsescheiben der parallel verarbeiteten Käseriegel somit zwangsläufig unterschiedliche Gewichte.This can prove to be disadvantageous especially if such cheese bars are to be cut into cheese slices that are as weight-balanced as possible. In the case of a slicer, which can process several cheese bars in parallel, the thickness of the sliced panes of the parallel processed cheese bars being the same in each case, the cheese bars between the cheese slices of the parallel processed cheese bars thus inevitably result in different weights due to the different cross-sectional areas.

Der Erfindung liegt daher die Aufgabe zugrunde, ein Verfahren der eingangs genannten Art derart weiterzubilden, dass der vorstehend erläuterte Nachteil vermeidbar ist.The invention is therefore based on the object, a method of the type mentioned in such a way that the above-described disadvantage is avoidable.

Erfindungsgemäß wird diese Aufgabe für ein Verfahren, bei dem das Lebensmittelprodukt entlang einer Vorschubrichtung relativ zu wenigstens einem lang gestreckten Schneidelement bewegt wird, durch die Merkmale des Anspruchs 1 gelöst.According to the invention, this object is achieved by a method in which the food product is moved along a feed direction relative to at least one elongate cutting element, by the features of claim 1.

Die Erfindung zeichnet sich dadurch aus, dass das Schneidelement zusätzlich zu der Relativbewegung zwischen dem Lebensmittelprodukt und dem Schneidelement verstellt werden kann, wobei die Verstellbewegung in zwei einander entgegengesetzte Richtungen erfolgen kann, die jeweils senkrecht zur Vorschubrichtung und senkrecht zur Längserstreckung des Schneidelements orientiert sind. Das Schneidelement kann dadurch derart positioniert werden, dass gemeinsam geschnittene Riegel in der senkrecht zur Vorschubrichtung verlaufenden, das Schneidelement umfassenden Ebene gleich große Schnittflächen aufweisen.The invention is characterized in that the cutting element can be adjusted in addition to the relative movement between the food product and the cutting element, wherein the adjustment can be made in two opposite directions, which are each oriented perpendicular to the feed direction and perpendicular to the longitudinal extent of the cutting element. The cutting element can be positioned in such a way that jointly cut bars in the direction perpendicular to the feed direction, the cutting element comprehensive level have the same sectional area.

Ein wesentlicher Vorteil der Erfindung besteht darin, dass die zusätzliche Verstellbewegung insbesondere während des Schneidens des Lebensmittelprodukts erfolgen kann. Der aufgrund der Ausbauchungen und/oder Wölbungen über die sich in Vorschubrichtung erstreckende Länge variierende Querschnitt des Lebensmittelprodukts kann durch kontinuierliches Nachfahren des Schneidelements dahingehend ausgeglichen werden, dass die gemeinsam geschnittenen Riegel in senkrecht zur Vorschubrichtung verlaufenden Ebenen jeweils gleich große Querschnittsflächen dabei aber insbesondere voneinander verschiedene Konturen aufweisenA significant advantage of the invention is that the additional adjustment movement can be carried out in particular during the cutting of the food product. The due to the bulges and / or bulges on the length extending in the feed direction extending cross-section of the food product can be compensated by continuous Nachfahren the cutting element to the effect that the jointly cut bars in planes perpendicular to the feed direction respectively equal cross-sectional areas but in particular different contours exhibit

Mehrere Schneidelemente sind unabhängig voneinander verstellbar. Hierdurch wird beispielsweise ermöglicht, dass die Schneidelemente mit voneinander verschiedenen Schrittweiten verstellt werden können, so dass auch Lebensmittelprodukte, die unsymmetrische Ausbauchungen und/oder Wölbungen aufweisen, in Riegel mit gleich großen Querschnittsflächen geschnitten werden können. Dabei können die Schneidelemente in die gleiche Richtung oder in entgegengesetzte Richtungen verstellt werden.Several cutting elements are independently adjustable. This makes it possible, for example, that the cutting elements can be adjusted with mutually different pitches, so that even food products that have unbalanced bulges and / or bulges can be cut into bars with equal cross-sectional areas. The can Cutting elements are adjusted in the same direction or in opposite directions.

Gemäß einer vorteilhaften Ausführungsform der Erfindung sind zur zumindest bereichsweisen Vermessung des noch nicht geschnittenen Teils des Lebensmittelprodukts vor und/oder während des Schneidens Abtastmittel vorgesehen. Insbesondere können die Verstellbewegungen des Schneidelements in Abhängigkeit von durch die Abtastmittel gelieferten Signalen und von der Vorschubgeschwindigkeit steuerbar sein. Hierdurch kann einerseits das Lebensmittelprodukt hinreichend genau vermessen und andererseits eine korrekte Dimensionierung der Verstellbewegungen des Schneidelements gewährleistet werden.According to an advantageous embodiment of the invention, scanning means are provided for the at least partial measurement of the not yet cut part of the food product before and / or during cutting. In particular, the adjusting movements of the cutting element can be controllable in dependence on signals supplied by the scanning means and on the feed speed. In this way, on the one hand, the food product can be measured with sufficient accuracy and, on the other hand, a correct dimensioning of the adjusting movements of the cutting element can be ensured.

Besonders vorteilhaft ist es, wenn die Abtastmittel im Wesentlichen unmittelbar vor dem Schneidelement angeordnet sind, da hierdurch auch Veränderungen der Form des Lebensmittelprodukts berücksichtigt werden können, die sich während des Aufteilens des Lebensmittelprodukts in Riegel, insbesondere durch das Schieben des Lebensmittelprodukts gegen den Widerstand des Schneidelements, ergeben.It is particularly advantageous if the scanning means are arranged substantially immediately in front of the cutting element, as this also changes of the shape of the food product can be considered, which during the division of the food product into bars, in particular by pushing the food product against the resistance of the cutting element , revealed.

Zur Vermessung des Lebensmittelprodukts aus mehreren Richtungen können die Abtastmittel mehrere Messsysteme umfassen, so dass gleichzeitig mehrere Seiten des Lebensmittelprodukts von den Abtastmitteln erfasst und vermessen werden können. Beispielsweise kann das Lebensmittelprodukt von zumindest drei Seiten vermessen werden, wobei das Lebensmittelprodukt mit seiner vierten insbesondere im Wesentlichen ebenen Seite auf der Transporteinrichtung aufliegt. An einem Bandübergang der Transporteinrichtung kann das Lebensmittelprodukt aber z.B. auch auf seiner unteren Seite vermessen werden. Die Messsysteme können als optische Sensoren, insbesondere Lasersensoren, Laserscanner oder Zeilenkameras, ausgebildet sein.For measuring the food product from several directions, the scanning means may comprise a plurality of measuring systems, so that at the same time several pages of the food product can be detected and measured by the scanning means. For example, the food product can be measured from at least three sides, the food product rests with its fourth, in particular substantially flat side on the transport device. At a belt transition of the transport device, however, the food product can also be measured on its lower side. The measuring systems can be designed as optical sensors, in particular laser sensors, laser scanners or line scan cameras.

Die Konturen von Querschnittsflächen des Lebensmittelprodukts senkrecht zur Vorschubrichtung können vollständig oder auch nur abschnittsweise vermessen werden. Aus der jeweiligen Kontur des an der Messposition noch nicht geschnittenen Lebensmittelprodukts kann die Position des Schneidelements bestimmt werden, die dieses einnehmen soll, wenn sich die jeweilige Kontur in der senkrecht zur Vorschubrichtung verlaufenden, das Schneidelement umfassenden Schnittebene befindet.The contours of cross-sectional areas of the food product perpendicular to the feed direction can be measured completely or only in sections. From the respective contour of the food product not yet cut at the measuring position, it is possible to determine the position of the cutting element which is to assume this position when the respective contour is in the sectional plane extending perpendicularly to the feed direction.

Es ist weiterhin bevorzugt, dass die Vermessung der Konturen entlang des Lebensmittelprodukts in diskreten Schritten erfolgt, wobei die Schrittgröße beispielsweise zwischen 0,5 mm und 10 mm betragen kann.It is further preferred that the measurement of the contours along the food product takes place in discrete steps, wherein the step size may for example be between 0.5 mm and 10 mm.

Das Schneidelement kann vertikal oder horizontal angeordnet sein. Insbesondere kann das Schneidelement als Schneiddraht ausgebildet sein, so dass bei Käseblöcken sichergestellt ist, dass die Käseriegel nicht an der Schneidfläche des Schneidelements haften bleibt. Um den oder die Schneiddrähte zu spannen bzw. unter Spannung zu halten, können der oder die Schneiddrähte in einer oder mehreren Schneiddrahthalterungen, insbesondere Spannrahmen, angeordnet sein.The cutting element can be arranged vertically or horizontally. In particular, the cutting element may be formed as a cutting wire, so that it is ensured in the case of cheese blocks that the cheese bars does not adhere to the cutting surface of the cutting element. In order to tension the tensioning wire (s), the one or more cutting wires may be arranged in one or more cutting wire holders, in particular tensioning frames.

Das Schneidelement kann zusätzlich in einer in Längserstreckung des Schneidelements und/oder parallel zu der Vorschubrichtung verlaufenden Ebene bewegbar sein. Insbesondere kann das Schneidelement entlang seiner Längserstreckung auf- und abbewegbar, oszillatorisch umlaufend ausgebildet und/oder um eine senkrecht zur Vorschubrichtung und senkrecht zur Längserstreckung der Schneidelemente gerichtete Drehachse drehbewegbar sein. Hierdurch kann der für das Eindringen des Schneidelements in das Lebensmittelprodukt erforderliche Kraftaufwand verringert werden, so dass das Lebensmittelprodukt gleichmäßig und geradlinig geschnitten werden kann.The cutting element may additionally be movable in a plane extending in the longitudinal extent of the cutting element and / or parallel to the feed direction. In particular, the cutting element can be moved up and down along its longitudinal extension, formed oscillatingly circumferentially and / or about a direction of rotation directed perpendicular to the feed direction and perpendicular to the longitudinal extent of the cutting elements be rotatable. As a result, the force required for the penetration of the cutting element into the food product can be reduced, so that the food product can be cut uniformly and in a straight line.

Weitere bevorzugte Ausführungsformen der Erfindung sind in den Unteransprüchen beschrieben.Further preferred embodiments of the invention are described in the subclaims.

Die Erfindung wird nachfolgend anhand eines Ausführungsbeispiels unter Bezugnahme auf die Figuren erläutert; in diesen zeigen:

Fig. 1
eine Draufsicht einer schematisch dargestellten Schneidvorrichtung, und
Fig. 2
eine perspektivische Ansicht eines zwei Schneiddrähte umfassenden Teils der Schneidvorrichtung von Fig. 1 während des Schneidens eines Lebensmittelprodukts.
The invention will be explained below with reference to an embodiment with reference to the figures; in these show:
Fig. 1
a plan view of a schematically illustrated cutting device, and
Fig. 2
a perspective view of a two cutting wires portion of the cutting device of Fig. 1 during the cutting of a food product.

Fig. 1 zeigt eine Schneidvorrichtung 10 zum Schneiden von Lebensmittelprodukten in mehrere Teile mit zwei vertikal, in der Darstellung der Fig. 1 senkrecht zur Zeichenebene orientierten Schneiddrähten 12, die jeweils zwischen den beiden Schenkeln eines U-förmig ausgebildeten Spannrahmens 14 (siehe auch Fig. 2) gehalten sind. Die Schneidvorrichtung 10 umfasst ferner ein Transportband 16 und einen Kolben 17, mittels derer ein Käseblock 18 entlang einer Vorschubrichtung 20, die durch einen Pfeil gekennzeichnet ist, auf die Schneiddrähte 12 zu bewegt wird.Fig. 1 shows a cutting device 10 for cutting food products into several parts with two vertically, in the representation of FIG. 1 perpendicular to the plane oriented cutting wires 12, each between the two legs of a U-shaped clamping frame 14 (see also FIG. 2) are held. The cutting device 10 further comprises a conveyor belt 16 and a piston 17, by means of which a cheese block 18 along a feed direction 20, which is indicated by an arrow, is moved toward the cutting wires 12.

Zur zumindest bereichsweisen Vermessung des Käseblocks 18 sind zwei Lasersensoren 22 vorgesehen, die bezüglich der Vorschubrichtung 20 seitlich des Käseblocks 18 und unmittelbar vor den Schneiddrähten 12 angeordnet sind. Die Abtaststrahlen 24 der Lasersensoren 22 sind jeweils auf den Käseblock 18 gerichtet, so dass dieser aus zumindest zwei Richtungen vermessen werden kann, wobei die Vermessung des Käseblocks 18 vor und während des Schneidens durchgeführt werden kann.For the at least partial measurement of the cheese block 18, two laser sensors 22 are provided which, with respect to the feed direction 20 are arranged laterally of the cheese block 18 and immediately in front of the cutting wires 12. The scanning beams 24 of the laser sensors 22 are each directed to the cheese block 18 so that it can be measured from at least two directions, wherein the measurement of the cheese block 18 before and during the cutting can be performed.

Die Schneiddrähte 12 sind mittels einer nicht dargestellten Verstelleinrichtung senkrecht zur Vorschubrichtung 20 und senkrecht zur ihrer vertikal gerichteten Längserstreckung verstellbar. Die beiden möglichen Verstellrichtungen 26 der Schneiddrähte 12 sind durch einen Doppelpfeil gekennzeichnet. Die beiden Schneiddrähte 12 sind dabei unabhängig voneinander verstellbar. Die Verstellbewegungen der Schneiddrähte 12 sind in Abhängigkeit von Signalen steuerbar, die aus den Vermessungsdaten der Lasersensoren 22 in Abhängigkeit von der Vorschubgeschwindigkeit und dem Abstand zwischen der Messebene der Lasersensoren 22 und den Schneiddrähten 12 berechnet werden können.The cutting wires 12 are adjustable by means of an adjusting device, not shown, perpendicular to the feed direction 20 and perpendicular to its vertically directed longitudinal extent. The two possible adjustment directions 26 of the cutting wires 12 are indicated by a double arrow. The two cutting wires 12 are independently adjustable. The adjustment movements of the cutting wires 12 are controllable in response to signals that can be calculated from the survey data of the laser sensors 22 as a function of the feed rate and the distance between the measurement plane of the laser sensors 22 and the cutting wires 12.

Zur Führung des Käseblocks 18 entlang der Vorschubrichtung 20 während des Schneidens können Führungsmittel, beispielsweise lineare Zentrierungen, vorgesehen sein, die in den Fig. 1 und 2 jedoch nicht dargestellt sind.For guiding the cheese block 18 along the feed direction 20 during cutting, guide means, for example linear centerings, can be provided, which are not shown in FIGS. 1 and 2, however.

Nachfolgend wird die Funktionsweise der Schneidvorrichtung unter zusätzlicher Bezugnahme auf Fig. 2 beschrieben.Hereinafter, the operation of the cutter will be described with additional reference to FIG.

Gemäß Fig. 1 wird der Käseblock 18 mittels des Transportbands 16, des Kolbens 17 und ggf. weiterer, nicht dargestellter Schubelemente in Richtung der Schneiddrähte 12 geschoben. Während des Transports entlang der Vorschubrichtung 20 wird der Käseblock 18 mittels der Lasersensoren 22 aus den beiden in Fig. 1 dargestellten seitlichen Richtungen abgetastet, wobei die Konturen 28 von Querschnittsflächen des Käseblocks 18 senkrecht zur Vorschubrichtung 20 lediglich abschnittsweise, also beispielsweise nicht von oben vermessen werden. Die Vermessung der Konturen 28 entlang des Käseblocks 18 erfolgt dabei in diskreten Schritten.According to FIG. 1, the cheese block 18 is pushed in the direction of the cutting wires 12 by means of the conveyor belt 16, the piston 17 and possibly further pushing elements (not shown). During transport along the feed direction 20, the cheese block 18 is scanned by means of the laser sensors 22 from the two lateral directions shown in FIG. 1, wherein the contours 28 of cross-sectional surfaces of the cheese block 18 perpendicular to the feed direction 20 only partially, so for example not measured from above. The measurement of the contours 28 along the block of cheese 18 takes place in discrete steps.

Befinden sich die beiden Lasersensoren 22 oberhalb der durch die Oberseite des Käseblocks 18 definierten Ebene und können die Lasersensoren 22 nicht nur horizontal sondern in einer senkrecht zur Vorschubrichtung 20 verlaufenden Abtastebene abtasten, dann kann die Kontur 28 an der Oberseite, der in Vorschubrichtung 20 gesehen linken und rechten Seite des Käseblocks 18 vermessen werden. Alternativ kann auch ein dritter Lasersensor oder mehrere Lasersensoren eingesetzt werden, der bzw. die die Oberseite des Käseblocks 18 abtasten.If the two laser sensors 22 are located above the plane defined by the upper side of the cheese block 18 and the laser sensors 22 can scan not only horizontally but in a scanning plane perpendicular to the feed direction 20, then the contour 28 on the upper side can be seen to the left in the feed direction 20 and right side of the cheese block 18 are measured. Alternatively, it is also possible to use a third laser sensor or a plurality of laser sensors, which scan the upper side of the cheese block 18.

Wenn der Käseblock 18 die Schneidelemente 12 erreicht, wird er durch diese hindurchgedrückt und in drei sich jeweils in Vorschubrichtung 20 erstreckende Käseriegel 30, 32, 34 geschnitten (Fig. 2). Die Schneidelemente 12 werden während des Schneidens des Käseblocks 18 dabei derart verstellt, dass in senkrecht zur Vorschubrichtung 20 verlaufenden Ebenen die Riegel 30, 32, 34 des Käseblocks 18 jeweils gleich große Querschnittsflächen A1, A2, A3 aufweisen, die insbesondere in ihren jeweiligen Konturen voneinander abweichen.When the block of cheese 18 reaches the cutting elements 12, it is pressed through the latter and cut into three cheese trays 30, 32, 34 extending in the feed direction 20 (FIG. 2). The cutting elements 12 are thereby adjusted during the cutting of the cheese block 18 such that in perpendicular to the feed direction 20 extending levels of the bars 30, 32, 34 of the cheese block 18 each have the same size cross-sectional areas A1, A2, A3, in particular in their respective contours of each other differ.

In Fig. 2 werden die beiden Schneiddrähte 12 zur Mitte des Käseblocks 18 hin auseinanderbewegt. Die Verstellbewegungen der Schneidelemente 12 werden in Abhängigkeit von den zuvor mittels der Lasersensoren 22 gemessenen Konturen 28 der Querschnittsflächen des Käseblocks 18 gesteuert. Ohne die erfindungsgemäßen Verstellbewegungen würden die Schneiddrähte 12 den Käseblock 18 geradlinig durchschneiden, was auf nachteilige Weise zur Folge hätte, dass die Querschnittsflächen A1, A2, A3 aufgrund der seitlichen Ausbauchungen des Käseblocks 18 voneinander verschieden wären.In Fig. 2, the two cutting wires 12 are moved towards the center of the cheese block 18 toward each other. The adjustment movements of the cutting elements 12 are controlled as a function of the contours 28 of the cross-sectional areas of the cheese block 18 previously measured by means of the laser sensors 22. Without the adjustment movements according to the invention, the cutting wires 12 would cut the cheese block 18 in a straight line, which would disadvantageously result in the cross-sectional areas A1, A2, A3 due to the lateral bulges of the cheese block 18 would be different from each other.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

1010
Schneidvorrichtungcutter
1212
Schneiddrahtcutting wire
1414
Spannrahmententer
1616
Transportbandconveyor belt
1717
Kolbenpiston
1818
Käseblockcheese block
2020
Vorschubrichtungfeed direction
2222
Lasersensorlaser sensor
2424
Abtaststrahlscanning beam
2626
Verstellrichtungadjustment
2828
Konturcontour
30, 32, 3430, 32, 34
Käseriegelcheese bars
A1, A2, A3A1, A2, A3
QuerschnittsflächeCross sectional area

Claims (9)

  1. A method for the cutting of food products into a plurality of parts, wherein the food product (18) is moved along a feed direction (20) relative to a plurality of elongated cutting elements (12),
    characterised in that
    the cutting elements (12) are adjusted during the cutting of the food product (18) perpendicular to the feed direction (20) and perpendicular to the longitudinal extent of the cutting elements (12) such that the parts (30, 32, 34) of the food product (18) each have cross-sectional surfaces (A1, A2, A3) of equal size in planes extending perpendicular to the feed direction (20), with the cutting elements (12) being adjusted independently of one another.
  2. A method in accordance with claim 1, characterised in that the not yet cut part of the food product (18) is measured at least regionally before and/ or during the cutting of the food product (18).
  3. A method in accordance with claim 2, characterised in that in each case that region of the food product (18) is measured which is located substantially directly in front of the cutting elements (12).
  4. A method in accordance with claim 2 or claim 3, characterised in that the food product (18) is measured from a plurality of directions.
  5. A method in accordance with any one of the claims 2 to 4, characterised in that the contours (28) of cross-sectional areas of the food product (18) are measured completely or sectionally perpendicular to the feed direction (20).
  6. A method in accordance with claim 5, characterised in that the measurement of the contours (28) along the food product (18) takes place in discrete steps.
  7. A method in accordance with any one of the preceding claims, characterised in that the adjustment movements of the cutting elements (12) are controlled in dependence on signals delivered by the scanning means (22).
  8. A method in accordance with any one of the preceding claims, characterised in that the cutting elements (12) are additionally moved in a plane extending in the longitudinal extent of the cutting elements (12) and/or parallel to the feed direction (20).
  9. A method in accordance with any one of the preceding claims, characterised in that the cross-sectional areas (A1, A2, A3) deviate from one another in their respective contours.
EP04027549A 2004-02-05 2004-11-19 Apparatus and device for cutting food Active EP1561551B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004005778A DE102004005778A1 (en) 2004-02-05 2004-02-05 Apparatus and method for cutting food products
DE102004005778 2004-02-05

Publications (3)

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EP1561551A2 EP1561551A2 (en) 2005-08-10
EP1561551A3 EP1561551A3 (en) 2006-01-18
EP1561551B1 true EP1561551B1 (en) 2007-08-08

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ID=34673175

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EP (1) EP1561551B1 (en)
AT (1) ATE369236T1 (en)
DE (2) DE102004005778A1 (en)
DK (1) DK1561551T3 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2446566B (en) * 2007-02-15 2009-01-07 Aew Delford Systems Ltd Control of food slicing machines
IT201700087899A1 (en) 2017-07-31 2019-01-31 Grasselli S P A Industrial slicer with automatic adjustment of the blade position.

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB805836A (en) * 1955-03-31 1958-12-17 Alkett Maschb G M B H A method of and apparatus for cutting foamed plastics
DE3524649A1 (en) * 1984-10-31 1986-04-30 Fawzi Ali Kuwait Bayoumy Method and device for cutting, especially for cutting babies' nappies
ES8608377A1 (en) * 1985-05-31 1986-07-16 Rovira Cristobal Teresa Machine for slicing bread
GB2234668B (en) * 1989-08-12 1994-02-16 Food Machinery Design Ltd Machines for cutting soft or semi-soft materials
US5819613A (en) * 1995-12-15 1998-10-13 Rayonier, Inc. Saw mill apparatus and method
DE20022392U1 (en) * 2000-03-17 2001-09-06 Hwang Ber Fong Vertical sliding foam sponge cutting device
US20020152861A1 (en) * 2001-04-13 2002-10-24 Hi-Tech Comact Method and apparatus for cutting a cant into boards
US6655248B1 (en) * 2001-08-30 2003-12-02 Charles H. Johnson Cheese cutting

Also Published As

Publication number Publication date
EP1561551A3 (en) 2006-01-18
DK1561551T3 (en) 2007-10-29
ATE369236T1 (en) 2007-08-15
DE102004005778A1 (en) 2005-08-25
EP1561551A2 (en) 2005-08-10
DE502004004563D1 (en) 2007-09-20

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