EP2374584A1 - Device for cutting a food product - Google Patents

Device for cutting a food product Download PDF

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Publication number
EP2374584A1
EP2374584A1 EP20110002382 EP11002382A EP2374584A1 EP 2374584 A1 EP2374584 A1 EP 2374584A1 EP 20110002382 EP20110002382 EP 20110002382 EP 11002382 A EP11002382 A EP 11002382A EP 2374584 A1 EP2374584 A1 EP 2374584A1
Authority
EP
European Patent Office
Prior art keywords
cutting blade
cutting
knife
blade
holder
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP20110002382
Other languages
German (de)
French (fr)
Other versions
EP2374584B1 (en
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 EP2374584A1 publication Critical patent/EP2374584A1/en
Application granted granted Critical
Publication of EP2374584B1 publication Critical patent/EP2374584B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B26HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26DCUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/26Means for mounting or adjusting the cutting member; Means for adjusting the stroke of the cutting member
    • B26D7/2628Means for adjusting the position of the cutting member
    • B26D7/2635Means for adjusting the position of the cutting member for circular cutters
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B26HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26DCUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00Cutting 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
    • B26D1/01Cutting 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
    • B26D1/12Cutting 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 cutting member moving about an axis
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B26HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26DCUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00Cutting 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
    • B26D1/01Cutting 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
    • B26D1/12Cutting 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 cutting member moving about an axis
    • B26D1/14Cutting 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 cutting member moving about an axis with a circular cutting member, e.g. disc cutter
    • B26D1/143Cutting 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 cutting member moving about an axis with a circular cutting member, e.g. disc cutter rotating about a stationary axis
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B26HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26DCUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00Cutting 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
    • B26D1/01Cutting 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
    • B26D1/12Cutting 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 cutting member moving about an axis
    • B26D1/14Cutting 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 cutting member moving about an axis with a circular cutting member, e.g. disc cutter
    • B26D1/157Cutting 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 cutting member moving about an axis with a circular cutting member, e.g. disc cutter rotating about a movable axis
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B26HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26DCUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/01Means for holding or positioning work
    • B26D2007/013Means for holding or positioning work the work being tubes, rods or logs
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B26HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26DCUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D2210/00Machines or methods used for cutting special materials
    • B26D2210/02Machines or methods used for cutting special materials for cutting food products, e.g. food slicers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B26HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26DCUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D2210/00Machines or methods used for cutting special materials
    • B26D2210/02Machines or methods used for cutting special materials for cutting food products, e.g. food slicers
    • B26D2210/08Idle cutting
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B26HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26DCUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D5/00Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D5/02Means for moving the cutting member into its operative position for cutting
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B26HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26DCUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D5/00Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D5/20Arrangements 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B26HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26DCUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/26Means for mounting or adjusting the cutting member; Means for adjusting the stroke of the cutting member
    • B26D7/2628Means for adjusting the position of the cutting member
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00Cutting
    • Y10T83/647With means to convey work relative to tool station
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00Cutting
    • Y10T83/869Means to drive or to guide tool
    • Y10T83/8789With simple revolving motion only

Definitions

  • the invention relates to a device for slicing food products, in particular a high-performance slicer, with a product feeder, at least one cutting blade which rotates about a knife axis and / or planetary rotates about a central axis and the at least one product to be cut in a MathzuTHERraum can be fed, and a knife holder to which the cutting blade is attachable.
  • Such devices are basically known and serve to slice food products such as sausage, meat and cheese at high speed. Typical cutting speeds are between several hundred to several thousand cuts per minute. Modern high-performance slicers differ, inter alia, in the design of the cutting blade and in the manner of the rotary drive for the cutting blade. So-called sickle or spiral blades rotate about an axis of rotation, also referred to here as a knife axis, wherein this axis of rotation itself does not carry out any additional movement, although this is not mandatory, ie, alternatively, the axis of rotation itself can carry out any additional movement whatsoever.
  • the rotating circular knife is also circulated in a planetary manner around a further axis spaced apart from the axis of rotation (also referred to here as center axis).
  • a further axis spaced apart from the axis of rotation also referred to here as center axis.
  • Which blade type or type of drive is to be preferred depends on the respective application. Generally leaves say that with only rotating sickle knives higher cutting speeds can be achieved, whereas rotating and additionally planetary circular blades are universally applicable without sacrificing the cutting quality.
  • a knife adjustment can also be used for other additional functions, eg for adjusting the cutting gap or for idle cuts in the context of a height adjustment or adjustment of the insertion depth of the cutting blade, which takes place in particular in relation to the or products to be sliced or the product edition, where will be discussed in more detail below.
  • the prior art proposes various ways to produce the desired distance between knife and product by a displacement of the knife.
  • Knife holder for example, in DE 101 47 348 A1 is described, to move only the rotating knife holder on which the knife is interchangeably mounted and which is also referred to as a knife holder, knife shaft or rotor, relative to the other components of the so-called cutter head, in addition to the mentioned Knife holder in particular comprises a rotary bearing for the rotational movement of the knife or the knife holder and a base part, with which the cutter head and thus the knife holder is attached to a frame or frame of the slicer.
  • This attachment can be done for example on or in a so-called cutting head housing on or in which not only the cutter head and knife, but also the drive motor for the cooperating with the cutter head, for example via a drive belt knife rotary drive are mounted.
  • the object of the invention is therefore to improve in a cutting device of the aforementioned type, the performance in terms of providing provided for additional functions knife movement and in particular to allow a more reliable implementation of blanks.
  • an apparatus for slicing food products comprises an adjusting device, by means of which the cutting blade is movable relative to the knife holder in an adjustment direction.
  • the invention is based on a departure from the prevailing so far in the professional opinion, according to which a movement of the cutting blade - eg away from the product - forcibly a corresponding movement of the knife holder, if not the entire cutter head or cutting head must be provided.
  • the cutting blade is not fixedly coupled to the knife holder, but there is in a certain direction a relative mobility between the cutting blade and the knife holder.
  • the corresponding relative movement can, if necessary, be brought about by means of the adjusting device.
  • the cutting blade can be temporarily moved away from the product in this way, so as to perform additional functions such as idle cuts.
  • the adjustment of the knife can take place faster in the inventive design of the cutting device than in conventional Systems, as to adjust the knife holder does not have to be moved and thus reduces the mass to be accelerated.
  • knife holder is to be understood here broadly. It is a component or an assembly on which or on which the cutting blade is supported in a way whatsoever directly or indirectly and relative to the or relative to the cutting blade is moved when the cutting blade is to be adjusted ,
  • cutting blade is not necessarily an integral whole, i. E. It is inventively possible, but not mandatory, that only a single component is adjusted with the cutting blade.
  • the cutting blade may be fixed or detachably connected to a separate component, for example a bush, e.g. be screwed, which moves together with the cutting blade and, for example, due to a corresponding design serves to improve the leadership of the cutting blade.
  • a separate component for example a bush, e.g. be screwed, which moves together with the cutting blade and, for example, due to a corresponding design serves to improve the leadership of the cutting blade.
  • Such an arrangement of cutting blade and separate component should also be considered as a "cutting blade" in the context of the invention.
  • the adjusting moves only the cutting blade.
  • the mass to be moved is kept to a minimum, which is advantageous in terms of a fast, precise and reliable adjustment.
  • the knife holder comprises a rotating and / or circumferentially driven shaft portion for the cutting blade.
  • the cutting blade is axially slidably attachable to the shaft portion.
  • the cutting blade can thus be performed on the knife holder, with an easy interchangeability of the cutting blade is guaranteed.
  • a removable securing element may be provided on the shaft portion.
  • the seat of the cutting blade on the shaft portion is such that on the one hand a relatively easy sliding displacement of the cutting blade is made possible and on the other hand, no or at least no excessive play occurs.
  • the cutting knife and the knife holder can be coupled to each other by means of an engagement device, in particular a toothing, that at the same time a rotational drive of the cutting blade by the knife holder and the relative movement of the cutting blade in the adjustment are possible.
  • the engagement device can in particular act positively, since in this way the directional selectivity necessary for an axial displaceability can be provided.
  • the knife holder is preferably stationary in the adjustment direction.
  • the knife holder can be stationary relative to a base frame of the device seen in the adjustment, such as a slicer frame or slicer frame.
  • the knife holder can of course be movable, for example, accordingly a rotating and / or rotating drive of the cutting blade or according to other adjustment or adjustment movements of the associated cutter head or cutting head.
  • no separate adjusting device must be provided in this embodiment.
  • the cutting blade may in particular be linearly displaceable relative to the knife holder.
  • the adjustment direction preferably runs parallel to the blade axis and / or to the central axis. This allows a particularly simple construction, since only a linear guide of the cutting blade is to be provided on the knife holder.
  • the adjusting device can be designed to generate a tilting and / or tumbling movement of the cutting blade.
  • This movement of the Schneidemessers can be adapted to the rotation and / or orbital motion. Furthermore, this movement of the cutting blade can run cyclically and / or periodically.
  • the cutting blade it is therefore possible, but not mandatory, according to the invention, to move the cutting blade so that the desired adjustment is established at all times over the entire circumference of the cutting blade.
  • a movement of the cutting blade relative to the blade holder can also take place such that the desired adjustment is established only over a partial circumferential region of the cutting blade, eg only a portion of the cutting edge is moved away from the product.
  • the movement of the cutting blade can be tuned to its rotational speed to safely avoid a Schnitzelige.
  • the cutting blade during Verstell stipulates, ie outside the normal Cutting operation, tilted or tumbled.
  • peripheral region of the further rotating and / or rotating cutting blade is adjusted, in particular moved away from the front end of the product, which would cut into the product without adjusting movement.
  • the cutting blade is offset by means of the adjusting device in such a rotational and / or orbital motion so tuned wobble that a Schnitzel Struktur is safely avoided.
  • Such an adjusting movement of the cutting blade is also an adjustment movement of the cutting blade relative to the blade holder in an adjustment direction in the sense of the invention.
  • stops for the cutting blade can be provided on the blade holder.
  • the stops can simultaneously serve to secure the movable cutting blade to the knife holder and to determine the maximum Verstellhubs.
  • adjustable stop elements of the adjustment can be adapted to different applications.
  • the adjusting device comprises an electrically, hydraulically or pneumatically actuable actuator which acts on the movable cutting blade.
  • the actuator can thereby act directly on the cutting blade or suitable transmission elements can be provided to impart the actuating force of the actuator to the cutting blade.
  • an area of the cutting blade forms a piston of a pneumatically actuable actuator.
  • This allows a particularly cost-effective and space-saving design.
  • a cylinder of the pneumatically actuable actuator relative to the cutting blade acting as a piston membranes or bellows can be provided.
  • the adjusting device may comprise at least one electromagnet, which acts on the cutting blade.
  • no force transmission elements on the cutting blade must attack, which is why this can be designed particularly simple.
  • common cutting blades can be used without additional structural adjustments.
  • the adjusting device may also comprise a displaceable on the knife holder element which is connected via a coupling device with the cutting blade in connection.
  • the displaceable element and the coupling device By means of the displaceable element and the coupling device, the adjusting movement can be transmitted in a simple manner from a drive element of the adjusting device to the cutting blade.
  • the displaceable element may be a sliding sleeve which is slidably mounted on a shaft portion of the knife holder.
  • the coupling device may comprise at least one articulated lever, in particular a plurality of articulated levers distributed on the displaceable element in the circumferential direction.
  • the toggle levers can according to Art an umbrella attached at one end to a sliding sleeve and attack at the other end of the cutting blade. If necessary, the articulated levers may each comprise two or more mutually pivotable parts or be formed variable in length in other ways.
  • the knife holder is a component of a cutter head, which is stationary in the adjustment direction. Because the cutter head is stationary, a corresponding adjusting device for the cutter head can be saved.
  • the cutter head can be designed as a sickle cutter head for a sickle knife rotating about the cutter axis.
  • the cutter head can be designed as a circular blade head for a circular blade rotating around the blade axis and rotating planetary about the central axis.
  • the cutter head may further be associated with at least one rotary drive, which is arranged together with the cutter head on or in a frame-fixed cutting head housing.
  • the rotary drive according to the invention need not necessarily be moved to adjust the cutting blade. If it is a circular knife head, then for the rotation of the cutting knife on the one hand and for the circulation of the cutting knife, i. for rotation about the central axis, on the other hand, a single common drive be provided. However, it is also possible to provide for each of these movements a separate and / or separate drive, in particular independent drives.
  • the cutting blade is movable in the adjustment direction in such a way that the distance between the cutting blade and a reference plane which is parallel to a cutting blade located in the cutting position by the cutting edge is defined Cutting plane runs, changed.
  • a reference plane for example, that level is to be understood, in which at least approximately during the cutting operation, the front end of the sliced product, so the current cutting surface of the product is.
  • the adjustment movement of the cutting blade creates a sufficiently large distance between the cutting plane always defined by the cutting edge of the cutting blade and the front end of the product, whereby a Schnitzel Struktur is prevented.
  • the reference plane may also coincide with the plane in which the cutting plane is located when the cutting blade is in the cutting position. Even if the cutting blade is not in the cutting position, ie between the beginning and the end of the adjustment process, the reference plane can be parallel to the cutting plane. This depends on the specific way of adjusting the cutting blade.
  • the cutting blade may be movable in the adjustment direction for carrying out at least one additional function, in particular for performing blank cuts and / or for cutting gap adjustment.
  • a high-performance slicer comprises a product feeder 11, a cutting blade 13 and a knife holder 15 for the cutting blade 13.
  • the cutting blade 13 is here designed as a sickle blade, which rotates about a knife axis A.
  • the knife holder 15 is rotatably mounted in a bearing 17 and comprises a base portion 19 and a plug portion 21.
  • An unillustrated rotary drive serves to put the knife holder 15 by means of a drive belt in a rotational movement about the blade axis A.
  • the knife holder 15 forms together with the bearing 17 a cutter head 23 which is fixedly mounted together with the rotary drive in a cutting head housing, not shown, of the slicer.
  • the rotating cutting blade 13 cuts with its cutting edge 25 through the product bar 27 and separates from this product slices 30, wherein it cooperates with a cutting edge 31 forming the end of the product support 37.
  • the coincidence of the cutting plane S with a plane defined by the cutting edge 31 is here a simplifying view owed.
  • a small, usually adjustable cutting gap is present between the cutting blade 13 and the cutting edge 31, which need not be discussed here in detail.
  • the feed rate of the product bar 27 and thus the thickness of the product slices 30 can be adjusted by a corresponding control of the driven holding claws 29.
  • the separated product slices 30 fall on the rear side facing away from the product feed 11 on a support 33 and can be further conveyed or further processed along a conveying direction F, in particular an automatic packaging system (not shown) are supplied.
  • Fig. 1 shows that the slicing of the product bar 27 is carried out in portions, ie the separated product slices 30 form portions 35, which are shown here as a slice stack. Once a portion 35 is completed, this portion 35 is transported on the support 33 in the conveying direction F. So that sufficient time is available for the removal of the finished portions 35, the above-mentioned empty cuts are carried out until the beginning of the formation of the next portion 35, for which purpose the product feed, also referred to as the product feed - in this case the holding claws 29 - is stopped and optionally withdrawn and on the other hand, the cutting blade 13 from the front end of the product bar 27 away in the in Fig. 1 dashed position shown is moved. By moving the cutting blade 13 into this position spaced from the product bar 27, chip or chip formation during the passage of blank cuts is reliably avoided.
  • the cutting blade 13 is attached to the plug portion 21 of the knife holder 15.
  • a passage 41 is formed in the cutting blade 13, which is so to the outer dimensions is adapted to the plug portion 21, that the cutting blade 13 on the plug portion 21 in and against an adjustment direction V is slidingly displaceable.
  • a projection 43 is formed, which forms a rear stop 45 for the movable cutting blade 13.
  • a securing element 46 is attached, the cutting blade 13 facing the end face forms a front stop 47 for the cutting blade 13.
  • the securing element 46 can be removed from the plug-in section 21 in order, for example, to be able to exchange the cutting blade 13.
  • profile structures are provided to allow a rotational drive of the cutting blade 13 by the rotating blade holder 15.
  • the cutting blade 13 is thus fixed in the radial direction on the blade holder 15 and further rotatably connected thereto.
  • the cutting blade 13 In respect to the knife axis A axial direction, namely in the adjustment direction V, the cutting blade 13, however, is movable relative to the knife holder 15.
  • an adjusting device 50 For controlled movement of the cutting blade 13 from the front end of the product bar 27 away and towards the front end of the product bar 27 out an adjusting device 50 is provided, which in the embodiment according to Fig. 1 is formed by two here only schematically illustrated electromagnets 51, 53, which are arranged on opposite sides of the cutting blade 13 and are driven by a control device, not shown.
  • the electromagnets 51, 53 are designed such that they can move the metallic cutting blade 13 with appropriate activation quickly in the respective, predetermined by one of the stops 45, 47, end position. To move the cutting blade 13 relative to the product bar 27 thus only the mass of the cutting blade 13 itself must be accelerated, while all other components of the slicer remain stationary with respect to the adjustment.
  • Fig. 2 shows a high-performance slicer according to an alternative embodiment of the invention, wherein for simplification of the product bars, the product supply and the product support - which is equivalent to the embodiment according to Fig. 1 are - not shown.
  • the adjusting device 50 'here comprises a provided on the base portion 19 of the blade holder 15 sliding sleeve 55, which can be moved forward and back by an actuator, not shown, along the adjustment direction.
  • On the outer surface of the sliding sleeve 55 are distributed in the circumferential direction arranged articulated lever 57 hinged, which are articulated at its end remote from the sliding sleeve 55 on the cutting blade 13.
  • the hinge lever 57 may be composed of at least two mutually pivotable parts, which in Fig. 2 is not shown in detail.
  • the articulated levers 57 exert a tensile or compressive force on the side of the cutting blade 13 facing the knife holder 15 and thus move it into one of the end positions defined by the stops 45, 47.

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  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Cutting Devices (AREA)

Abstract

The device has a cutting knife (13) i.e. sickle knife, rotated around a knife axis (A) and circulating around a middle axis in a planetary manner. The cutting knife is attached at a knife holder (15), and adjusting devices (50) enable movement of the cutting knife relative to the knife holder in an adjusting direction (V), which runs parallel to the knife axis. The holder has a rotating and/or circular connector section (21) for the cutting knife. The knife and holder are coupled together via a toothing unit. The adjusting devices comprise electromagnets (51, 53), which act on the knife.

Description

Die Erfindung betrifft eine Vorrichtung zum Aufschneiden von Lebensmittelprodukten, insbesondere einen Hochleistungs-Slicer, mit einer Produktzuführung, wenigstens einem Schneidmesser, das um eine Messerachse rotiert und/oder um eine Mittelachse planetarisch umläuft und dem wenigstens ein aufzuschneidendes Produkt in einer Produktzuführrichtung zuführbar ist, und einer Messerhalterung, an der das Schneidmesser anbringbar ist.The invention relates to a device for slicing food products, in particular a high-performance slicer, with a product feeder, at least one cutting blade which rotates about a knife axis and / or planetary rotates about a central axis and the at least one product to be cut in a Produktzuführrichtung can be fed, and a knife holder to which the cutting blade is attachable.

Derartige Vorrichtungen sind grundsätzlich bekannt und dienen dazu, Lebensmittelprodukte wie beispielsweise Wurst, Fleisch und Käse mit hoher Geschwindigkeit in Scheiben zu schneiden. Typische Schnittgeschwindigkeiten liegen zwischen mehreren 100 bis einigen 1.000 Schnitten pro Minute. Moderne Hochleistungs-Slicer unterscheiden sich unter anderem in der Ausgestaltung des Schneidmessers sowie in der Art und Weise des Rotationsantriebs für das Schneidmesser. So genannte Sicheloder Spiralmesser rotieren um eine hier auch als Messerachse bezeichnete Rotationsachse, wobei diese Rotationsachse selbst keine zusätzliche Bewegung ausführt, wobei dies aber nicht zwingend ist, d.h. alternativ kann die Rotationsachse selbst eine wie auch immer geartete zusätzliche Bewegung ausführen. Bei Slicern mit Kreismessern ist dagegen vorgesehen, das rotierende Kreismesser zusätzlich um eine von der Rotationsachse beabstandete weitere Achse (hier auch Mittelachse genannt) planetarisch umlaufen zu lassen. Welchem Messertyp bzw. welcher Antriebsart der Vorzug zu geben ist, ist von der jeweiligen Anwendung abhängig. Generell lässt sich sagen, dass mit lediglich rotierenden Sichelmessern höhere Schnittgeschwindigkeiten erzielt werden können, wohingegen rotierende und zusätzlich planetarisch umlaufende Kreismesser ohne Einbußen bei der Schneidqualität universeller einsetzbar sind.Such devices are basically known and serve to slice food products such as sausage, meat and cheese at high speed. Typical cutting speeds are between several hundred to several thousand cuts per minute. Modern high-performance slicers differ, inter alia, in the design of the cutting blade and in the manner of the rotary drive for the cutting blade. So-called sickle or spiral blades rotate about an axis of rotation, also referred to here as a knife axis, wherein this axis of rotation itself does not carry out any additional movement, although this is not mandatory, ie, alternatively, the axis of rotation itself can carry out any additional movement whatsoever. For slicers with circular knives, on the other hand, it is provided that the rotating circular knife is also circulated in a planetary manner around a further axis spaced apart from the axis of rotation (also referred to here as center axis). Which blade type or type of drive is to be preferred depends on the respective application. Generally leaves say that with only rotating sickle knives higher cutting speeds can be achieved, whereas rotating and additionally planetary circular blades are universally applicable without sacrificing the cutting quality.

Die vorstehend erwähnten hohen Schnittgeschwindigkeiten machen es - und dies gilt unabhängig vom Messertyp und von der Antriebsart - erforderlich, dass in bestimmten Betriebssituationen, insbesondere bei einem portionsweisen Aufschneiden von Produkten, so genannte Leerschnitte durchgeführt werden, in denen sich das Messer weiterhin bewegt, d.h. seine Schneidbewegung ausführt, dabei jedoch nicht in das Produkt, sondern "ins Leere" schneidet, damit vorübergehend keine Scheiben vom Produkt abgetrennt werden und diese "Schneidpausen" dazu genutzt werden können, eine mit den zuvor abgetrennten Scheiben gebildete Portion, beispielsweise einen Scheibenstapel oder geschindelt angeordnete Scheiben, abzutransportieren. Die zwischen zwei aufeinanderfolgend abgetrennten Scheiben verstreichende Zeit reicht ab einer bestimmten Schneidleistung bzw. Schnittgeschwindigkeit für einen ordnungsgemäßen Abtransport der Scheibenportionen nicht aus. Die Länge dieser "Schneidpausen" und die Anzahl der Leerschnitte pro "Schneidpause" sind von der jeweiligen Anwendung abhängig.The above-mentioned high cutting speeds make it necessary - and this applies regardless of the type of knife and the type of drive - that in certain operating situations, in particular with a portionwise slicing of products, so-called idle cuts are carried out, in which the knife continues to move, i. performs his cutting motion, but not in the product, but "in the void" cuts, so temporarily no slices are separated from the product and these "cutting breaks" can be used to a formed with the previously separated slices portion, such as a stack of discs or shingles arranged discs to be transported away. The time passing between two consecutively separated slices does not suffice for a proper cutting performance or cutting speed for a proper removal of the slice portions. The length of these "cutting breaks" and the number of idle cuts per "cutting break" depend on the particular application.

Ein in der Praxis bekanntes Problem in Verbindung mit der Durchführung von Leerschnitten besteht darin, dass es in den meisten Fällen nicht genügt, einfach die Zufuhr des Produktes vorübergehend anzuhalten, um das Abtrennen von Scheiben zu verhindern. Bei Produkten mit weicher Konsistenz kommt es nämlich regelmäßig vor, dass sich nach dem Anhalten des Produktvorschubs Entspannungseffekte einstellen, wodurch das vordere Produktende über die Schneidebene hinaus und damit in den Wirkungsbereich des Schneidmessers gelangt. Die Folge ist ein unerwünschtes Abtrennen so genannter Produktschnipsel oder Produktschnitzel. Abgesehen davon kommt es zu einer solchen Schnitzelbildung unabhängig von der Produktkonsistenz zwangsläufig immer dann, wenn die Produkte während des Aufschneidebetriebs kontinuierlich zugeführt werden, d.h. auch bei Produkten mit fester Konsistenz, bei denen also die vorstehend erwähnten Entspannungseffekte nicht auftreten, kommt es bei einer kontinuierlichen Produktzufuhr zu einer Schnitzelbildung.A problem known in practice in connection with the performance of blanks is that, in most cases, it is not enough to simply stop the supply of the product temporarily to prevent the separation of slices. In fact, in the case of products with a soft consistency, it regularly happens that relaxation effects occur after the product feed has stopped, as a result of which the front end of the product passes beyond the cutting plane and thus into the effective range of the cutting blade. The consequence is an undesirable one Separating so-called product chips or product chips. Apart from that, it always comes to such a Schnitzelbildung regardless of the product consistency whenever the products are continuously fed during the slicing operation, ie even with products with a firm consistency, so where the above-mentioned relaxation effects do not occur, it comes with a continuous product supply to a schnitzel formation.

Die vorstehend beschriebenen Phänomene sind dem Fachmann hinreichend bekannt, weshalb hierauf nicht näher eingegangen wird.The phenomena described above are well known to the person skilled in the art, which is why this will not be discussed in detail.

Aus dem Stand der Technik sind bereits Maßnahmen bekannt, die dazu dienen, eine Schnitzelbildung bei der Durchführung von Leerschnitten zu vermeiden. Hierzu wird beispielsweise auf EP 0 289 765 A1 , DE 42 14 264 A1 , EP 1 046 476 A2 , DE 101 147 348 A1 , DE 154 952 , DE 10 2006 043 697 A1 und DE 103 33 661 A1 verwiesen.Measures are already known from the prior art, which serve to avoid a Schnitzelbildung when performing blanks. For this example, on EP 0 289 765 A1 . DE 42 14 264 A1 . EP 1 046 476 A2 . DE 101 147 348 A1 . DE 154 952 . DE 10 2006 043 697 A1 and DE 103 33 661 A1 directed.

Demnach wurde bereits vorgeschlagen, für die Durchführung von Leerschnitten die Produktzufuhr nicht nur zu unterbrechen, sondern zusätzlich das Produkt - gegebenenfalls samt Produktauflage - zurückzuziehen. Dieser Ansatz stößt insbesondere dann an Grenzen, wenn die Schnittgeschwindigkeiten und/oder die dabei zu bewegenden Massen zu groß werden, da dann nicht mehr sichergestellt werden kann, dass das vordere Produktende ausreichend schnell zurückgezogen werden kann. Als Alternative zum Zurückziehen des Produkts wurde ferner bereits vorgeschlagen, das Schneidmesser vom vorderen Produktende wegzubewegen. Beide Lösungsansätze haben zur Folge, dass zwischen dem vorderen Produktende und dem Schneidmesser ein ausreichend großer Abstand hergestellt wird, der eine Schnitzelbildung sicher verhindert. Der erforderliche Messerhub beträgt lediglich einige Millimeter, muss allerdings in einer sehr kurzen Zeit in der Größenordnung von einigen Hundertstel Sekunden erfolgen. Die Möglichkeit einer Messerverstellung kann auch für weitere Zusatzfunktionen genutzt werden, z.B. für das Einstellen des Schneidspalts oder für Leerschnitte im Rahmen einer Höheneinstellung bzw. Einstellung der Eintauchtiefe des Schneidmessers, die insbesondere in Bezug auf das oder die aufzuschneidenden Produkte bzw. die Produktauflage erfolgt, worauf nachstehend näher eingegangen wird.Accordingly, it has already been proposed not only to interrupt the product supply for the performance of blanks, but also to withdraw the product, if appropriate together with the product support. This approach reaches its limits, in particular, when the cutting speeds and / or the masses to be moved become too large, because then it can no longer be ensured that the front end of the product can be withdrawn sufficiently quickly. As an alternative to retracting the product, it has also been proposed to move the cutting blade away from the front end of the product. Both solutions have the consequence that between the front end of the product and the cutting blade a sufficiently large distance is produced, which reliably prevents a Schnitzelbildung. The required blade stroke is only a few millimeters, but must be in a very short time on the order of a few hundredths of a second. The possibility of a knife adjustment can also be used for other additional functions, eg for adjusting the cutting gap or for idle cuts in the context of a height adjustment or adjustment of the insertion depth of the cutting blade, which takes place in particular in relation to the or products to be sliced or the product edition, where will be discussed in more detail below.

Der Stand der Technik schlägt verschiedene Möglichkeiten vor, den gewünschten Abstand zwischen Messer und Produkt durch eine Verlagerung des Messers herzustellen.The prior art proposes various ways to produce the desired distance between knife and product by a displacement of the knife.

Eine Möglichkeit, die beispielsweise in DE 101 47 348 A1 beschrieben ist, besteht darin, lediglich die rotierende Messerhalterung, an der das Messer auswechselbar angebracht ist und die auch als Messeraufnahme, Messerwelle oder Rotor bezeichnet wird, zu bewegen, und zwar relativ zu den übrigen Bestandteilen des so genannten Messerkopfes, der zusätzlich zu der erwähnten Messerhalterung insbesondere eine Drehlagerung für die Rotationsbewegung des Messers bzw. der Messerhalterung sowie ein Basisteil umfasst, mit dem der Messerkopf und damit die Messerhalterung an einem Gestell oder Rahmen des Slicers befestigt wird. Diese Befestigung kann beispielsweise an oder in einem so genannten Schneidkopfgehäuse erfolgen, an oder in welchem nicht nur der Messerkopf samt Messer, sondern außerdem der Antriebsmotor für den mit dem Messerkopf z.B. über einen Antriebsriemen zusammenwirkenden Messer-Rotationsantrieb angebracht sind.One way, for example, in DE 101 47 348 A1 is described, to move only the rotating knife holder on which the knife is interchangeably mounted and which is also referred to as a knife holder, knife shaft or rotor, relative to the other components of the so-called cutter head, in addition to the mentioned Knife holder in particular comprises a rotary bearing for the rotational movement of the knife or the knife holder and a base part, with which the cutter head and thus the knife holder is attached to a frame or frame of the slicer. This attachment can be done for example on or in a so-called cutting head housing on or in which not only the cutter head and knife, but also the drive motor for the cooperating with the cutter head, for example via a drive belt knife rotary drive are mounted.

Es ist auch möglich, den Messerkopf als Ganzes zu verlagern, so dass zum Verstellen des Messers eine Relativbewegung zwischen Messerhalterung und Drehlagerung des Messers nicht erforderlich ist. Eine derartige Lösung ist beispielsweise in DE 10 2006 043 697 A1 gezeigt.It is also possible to displace the cutter head as a whole, so that for adjusting the knife, a relative movement between knife holder and pivot bearing of the knife is not required. Such a solution is for example in DE 10 2006 043 697 A1 shown.

Des Weiteren ist es möglich, das gesamte Schneidkopfgehäuse samt Messerkopf und Rotationsantrieb zu bewegen. Lösungen dieser Art sind beispielsweise in EP 1 046 476 A2 beschrieben.Furthermore, it is possible to move the entire cutterhead housing including cutter head and rotary drive. Solutions of this type are for example in EP 1 046 476 A2 described.

Diese vorstehend erläuterten Lösungsansätze unterscheiden sich nicht nur hinsichtlich der Größe der zu bewegenden Masse, sondern auch hinsichtlich des Konstruktionsaufwandes sowie der Anwendbarkeit für unterschiedliche Messer- bzw. Antriebsarten. Eine Bewegung lediglich der Messerhalterung beispielsweise hat zwar den Vorteil einer relativ geringen zu bewegenden Masse, bedeutet aber einen relativ hohen konstruktiven Aufwand, da mit dem Messer ein Gegenstand entlang einer Achse verschoben oder auf andere Art und Weise bewegt werden muss, der gleichzeitig mit hoher Geschwindigkeit, z.B. um eben die genannte Achse, rotiert. Hierfür sind Probleme in Verbindung mit der Lagerung des Messers bzw. der Messerhalterung zu lösen. Während die vorstehend erwähnten Sichel- oder Spiralmesser lediglich um eine Achse rotieren, diese Achse aber nicht zusätzlich eine Umlaufbewegung ausführt, lassen sich Konzepte zum Verstellen des Messers trotz der erwähnten Lagerungsproblematik mit vertretbarem Aufwand realisieren. Anders ist dies bei Slicern mit rotierenden und gleichzeitig planetarisch umlaufenden Kreismessern, denn hier besteht das Problem, mit vertretbarem konstruktiven Aufwand eine Verlagerung nur des Messers bzw. der Messerhalterung zu bewerkstelligen.These approaches described above differ not only in terms of the size of the mass to be moved, but also in terms of design effort and applicability for different types of knives or drives. Although a movement of only the knife holder, for example, has the advantage of a relatively low mass to be moved, but means a relatively high design effort, since with the knife an object must be moved along an axis or moved in any other way, the same time at high speed , eg about the same axis, rotates. For this problems in connection with the storage of the knife or the knife holder to solve. While the above-mentioned sickle or spiral blades only rotate about one axis, but this axis does not additionally carry out a circulation movement, concepts for adjusting the blade despite the aforementioned storage problems can be realized with reasonable effort. This is different with slicers with rotating and at the same time planetary revolving circular knives, because here there is the problem to accomplish with reasonable design effort a displacement of only the knife or the knife holder.

Unabhängig von den konstruktiven Problemen hinsichtlich der Lagerung des Messers bzw. der Messerhalterung kann bei den bekannten Lösungsansätzen die erreichbare Verstellgeschwindigkeit aufgrund der zu bewegenden Massen zu gering sein, um bei hohen Schnittgeschwindigkeiten ohne Qualitätseinbußen Leerschnitte durchzuführen.Regardless of the design problems with respect to the storage of the knife or the knife holder can be achieved in the known approaches to the achievable adjustment speed due to the Masses are too low to perform at high cutting speeds without sacrificing quality idle cuts.

Aufgabe der Erfindung ist es daher, bei einer Schneidvorrichtung der vorstehend genannten Art die Leistungsfähigkeit hinsichtlich einer zum Bereitstellen von Zusatzfunktionen vorgesehenen Messerbewegung zu verbessern und insbesondere eine zuverlässigere Durchführung von Leerschnitten zu ermöglichen.The object of the invention is therefore to improve in a cutting device of the aforementioned type, the performance in terms of providing provided for additional functions knife movement and in particular to allow a more reliable implementation of blanks.

Die Lösung dieser Aufgabe erfolgt durch die Merkmale des Anspruchs 1.The solution of this object is achieved by the features of claim 1.

Erfindungsgemäß umfasst eine Vorrichtung zum Aufschneiden von Lebensmittelprodukten eine Verstelleinrichtung, mittels der das Schneidmesser relativ zu der Messerhalterung in einer Verstellrichtung bewegbar ist.According to the invention, an apparatus for slicing food products comprises an adjusting device, by means of which the cutting blade is movable relative to the knife holder in an adjustment direction.

Die Erfindung beruht auf einer Abkehr von der in der Fachwelt bislang vorherrschenden Meinung, wonach für eine Bewegung des Schneidmessers - z.B. vom Produkt weg - zwangsweise eine entsprechende Bewegung der Messerhalterung, wenn nicht gar des gesamten Messerkopfs oder Schneidkopfs, vorgesehen sein muss. Erfindungsgemäß ist das Schneidmesser nicht fest mit der Messerhalterung gekoppelt, sondern es besteht in einer bestimmten Richtung eine relative Beweglichkeit zwischen dem Schneidmesser und der Messerhalterung. Die entsprechende Relativbewegung kann bedarfsweise mittels der Verstelleinrichtung herbeigeführt werden. Das Schneidmesser kann auf diese Weise zeitweilig vom Produkt wegbewegt werden, um so Zusatzfunktionen wie z.B. Leerschnitte durchzuführen. Das Verstellen des Messers kann bei erfindungsgemäßer Ausgestaltung der Schneidvorrichtung schneller erfolgen als bei herkömmlichen Systemen, da zum Verstellen die Messerhalterung nicht mitbewegt werden muss und sich somit die zu beschleunigende Masse verringert.The invention is based on a departure from the prevailing so far in the professional opinion, according to which a movement of the cutting blade - eg away from the product - forcibly a corresponding movement of the knife holder, if not the entire cutter head or cutting head must be provided. According to the invention, the cutting blade is not fixedly coupled to the knife holder, but there is in a certain direction a relative mobility between the cutting blade and the knife holder. The corresponding relative movement can, if necessary, be brought about by means of the adjusting device. The cutting blade can be temporarily moved away from the product in this way, so as to perform additional functions such as idle cuts. The adjustment of the knife can take place faster in the inventive design of the cutting device than in conventional Systems, as to adjust the knife holder does not have to be moved and thus reduces the mass to be accelerated.

Der Begriff "Messerhalterung" ist hier generell breit zu verstehen. Es handelt sich um ein Bauteil oder eine Baugruppe, an dem bzw. an der das Schneidmesser in einer wie auch immer gearteten Weise unmittelbar oder mittelbar gehaltert ist und relativ zu dem bzw. relativ zu der das Schneidmesser bewegt wird, wenn das Schneidmesser verstellt werden soll.The term "knife holder" is to be understood here broadly. It is a component or an assembly on which or on which the cutting blade is supported in a way whatsoever directly or indirectly and relative to the or relative to the cutting blade is moved when the cutting blade is to be adjusted ,

Unter dem Begriff "Schneidmesser" ist hier nicht zwingend ein einstückiges Ganzes zu verstehen, d.h. es ist erfindungsgemäß möglich, aber nicht zwingend, dass mit dem Schneidmesser nur ein einziges Bauteil verstellt wird. Das Schneidmesser kann mit einem separaten Bauteil, beispielsweise einer Buchse, fest oder lösbar verbunden, z.B. verschraubt, sein, welches sich zusammen mit dem Schneidmesser bewegt und beispielsweise aufgrund einer entsprechenden Ausgestaltung dazu dient, die Führung des Schneidmessers zu verbessern. Eine solche Anordnung aus Schneidmesser und separatem Bauteil soll auch als "Schneidmesser" im Sinne der Erfindung angesehen werden.The term "cutting blade" is not necessarily an integral whole, i. E. It is inventively possible, but not mandatory, that only a single component is adjusted with the cutting blade. The cutting blade may be fixed or detachably connected to a separate component, for example a bush, e.g. be screwed, which moves together with the cutting blade and, for example, due to a corresponding design serves to improve the leadership of the cutting blade. Such an arrangement of cutting blade and separate component should also be considered as a "cutting blade" in the context of the invention.

Vorteilhafte Ausgestaltungen der Erfindung sind auch in den abhängigen Ansprüchen, der Beschreibung sowie der Zeichnung angegeben.Advantageous embodiments of the invention are also specified in the dependent claims, the description and the drawings.

Vorzugsweise bewegt die Verstelleinrichtung ausschließlich das Schneidmesser. Dadurch ist die zu bewegende Masse auf ein Minimum beschränkt, was hinsichtlich einer schnellen, präzisen und zuverlässigen Verstellung vorteilhaft ist. Darüber hinaus entfallen auch die konstruktiven Probleme in Verbindung mit der Drehlagerung der Messerhalterung, da weder die Messerhalterung noch die entsprechende Lagerkomponente an der Verstellbewegung beteiligt sind.Preferably, the adjusting moves only the cutting blade. As a result, the mass to be moved is kept to a minimum, which is advantageous in terms of a fast, precise and reliable adjustment. In addition, also eliminates the design problems in connection with the pivot bearing of the knife holder, since neither the knife holder nor the corresponding bearing component are involved in the adjustment.

Gemäß einer Ausführungsform umfasst die Messerhalterung einen rotierend und/oder umlaufend angetriebenen Wellenabschnitt für das Schneidmesser. Bevorzugt ist das Schneidmesser auf den Wellenabschnitt axial verschiebbar aufsteckbar. Das Schneidmesser kann somit auf der Messerhalterung geführt werden, wobei eine leichte Auswechselbarkeit des Schneidmessers gewährleistet ist. Zur Sicherung des Schneidmessers auf dem Wellenabschnitt kann ein entnehmbares Sicherungselement an dem Wellenabschnitt vorgesehen sein. Zweckmäßigerweise ist der Sitz des Schneidmessers auf dem Wellenabschnitt derart, dass einerseits eine relativ leichte gleitende Verschiebbarkeit des Schneidmessers ermöglicht ist und andererseits kein oder zumindest kein übermäßiges Spiel auftritt.According to one embodiment, the knife holder comprises a rotating and / or circumferentially driven shaft portion for the cutting blade. Preferably, the cutting blade is axially slidably attachable to the shaft portion. The cutting blade can thus be performed on the knife holder, with an easy interchangeability of the cutting blade is guaranteed. To secure the cutting blade on the shaft portion, a removable securing element may be provided on the shaft portion. Conveniently, the seat of the cutting blade on the shaft portion is such that on the one hand a relatively easy sliding displacement of the cutting blade is made possible and on the other hand, no or at least no excessive play occurs.

Um das Schneidmesser über die Messerhalterung rotierend antreiben zu können, können das Schneidmesser und die Messerhalterung mittels einer Eingriffseinrichtung, insbesondere einer Verzahnung, derart miteinander koppelbar sein, dass gleichzeitig eine Drehmitnahme des Schneidmessers durch die Messerhalterung und die Relativbewegung des Schneidmessers in Verstellrichtung ermöglicht sind. Die Eingriffseinrichtung kann insbesondere formschlüssig wirken, da hierdurch die für eine axiale Verschiebbarkeit notwendige Richtungsselektivität bereitgestellt werden kann. Beispielsweise kann an einem Wellenabschnitt der Messerhalterung ein Profil ausgebildet sein, das mit einem entsprechenden Profil an einer Aussparung des Schneidmessers zusammenwirkt.In order to be able to drive the cutting blade in rotation via the knife holder, the cutting knife and the knife holder can be coupled to each other by means of an engagement device, in particular a toothing, that at the same time a rotational drive of the cutting blade by the knife holder and the relative movement of the cutting blade in the adjustment are possible. The engagement device can in particular act positively, since in this way the directional selectivity necessary for an axial displaceability can be provided. For example, may be formed on a shaft portion of the knife holder, a profile which cooperates with a corresponding profile on a recess of the cutting blade.

Bevorzugt ist die Messerhalterung in Verstellrichtung gesehen ortsfest. Insbesondere kann die Messerhalterung relativ zu einem Grundgestell der Vorrichtung in Verstellrichtung gesehen ortsfest sein, z.B. einem Slicer-Gestell oder Slicer-Rahmen. Abgesehen von der Verstellrichtung kann die Messerhalterung natürlich bewegbar sein, beispielsweise entsprechend einem rotierenden und/oder umlaufenden Antrieb des Schneidmessers oder entsprechend anderen Einstell- oder Verstellbewegungen des zugehörigen Messerkopfes oder Schneidkopfes. Für die Messerhalterung muss bei dieser Ausführungsform keine eigene Verstellvorrichtung bereitgestellt werden.The knife holder is preferably stationary in the adjustment direction. In particular, the knife holder can be stationary relative to a base frame of the device seen in the adjustment, such as a slicer frame or slicer frame. Apart from the adjustment, the knife holder can of course be movable, for example, accordingly a rotating and / or rotating drive of the cutting blade or according to other adjustment or adjustment movements of the associated cutter head or cutting head. For the knife holder, no separate adjusting device must be provided in this embodiment.

Das Schneidmesser kann insbesondere relativ zu der Messerhalterung linear verschiebbar sein. Die Verstellrichtung verläuft vorzugsweise parallel zur Messerachse und/oder zur Mittelachse. Dies ermöglicht eine besonders einfache Konstruktion, da lediglich eine lineare Führung des Schneidmessers an der Messerhalterung vorzusehen ist.The cutting blade may in particular be linearly displaceable relative to the knife holder. The adjustment direction preferably runs parallel to the blade axis and / or to the central axis. This allows a particularly simple construction, since only a linear guide of the cutting blade is to be provided on the knife holder.

Alternativ kann die Verstelleinrichtung dazu ausgebildet sein, eine Kippund/oder Taumelbewegung des Schneidmessers zu erzeugen. Diese Bewegung des Schneidemessers kann auf dessen Rotations- und/oder Umlaufbewegung abgestimmt sein. Ferner kann diese Bewegung des Schneidmessers zyklisch und/oder periodisch verlaufen.Alternatively, the adjusting device can be designed to generate a tilting and / or tumbling movement of the cutting blade. This movement of the Schneidemessers can be adapted to the rotation and / or orbital motion. Furthermore, this movement of the cutting blade can run cyclically and / or periodically.

Generell ist es erfindungsgemäß also zwar möglich, aber nicht zwingend, das Schneidmesser so zu bewegen, dass sich die gewünschte Verstellung zu jedem Zeitpunkt über den gesamten Umfang des Schneidmessers einstellt. Es kann erfindungsgemäß nämlich auch eine Bewegung des Schneidmessers relativ zur Messerhalterung dergestalt erfolgen, dass sich die gewünschte Verstellung lediglich über einen Teilumfangsbereich des Schneidmessers einstellt, z.B. nur ein Teilbereich der Schneide vom Produkt wegbewegt wird. Bei diesem Konzept kann zur sicheren Vermeidung einer Schnitzelbildung die Bewegung des Schneidmessers auf dessen Rotationsgeschwindigkeit abgestimmt werden. Beispielsweise nach Art der zyklischen Blattverstellung beim Rotor eines Hubschraubers wird das Schneidmesser während des Verstellbetriebs, also außerhalb des normalen Schneidebetriebs, verkippt oder in eine Taumelbewegung versetzt. Insbesondere wird jeweils gerade derjenige Umfangsbereich des weiterhin rotierenden und/oder umlaufenden Schneidmessers verstellt, insbesondere von dem vorderen Produktende wegbewegt, der ohne Verstellbewegung in das Produkt einschneiden würde.In general, it is therefore possible, but not mandatory, according to the invention, to move the cutting blade so that the desired adjustment is established at all times over the entire circumference of the cutting blade. In fact, according to the invention, a movement of the cutting blade relative to the blade holder can also take place such that the desired adjustment is established only over a partial circumferential region of the cutting blade, eg only a portion of the cutting edge is moved away from the product. In this concept, the movement of the cutting blade can be tuned to its rotational speed to safely avoid a Schnitzelbildung. For example, according to the type of cyclic pitch adjustment in the rotor of a helicopter, the cutting blade during Verstellbetriebs, ie outside the normal Cutting operation, tilted or tumbled. In particular, in each case just that peripheral region of the further rotating and / or rotating cutting blade is adjusted, in particular moved away from the front end of the product, which would cut into the product without adjusting movement.

Folglich ist es nicht erforderlich, dass das Schneidmesser als Ganzes eine wie auch immer gerichtete Linearbewegung relativ zur Messerhalterung durchführt. Die gewünschte Verstellung kann vielmehr z.B. dadurch erfolgen, dass in Verbindung mit der Durchführung von Leerschnitten das Schneidmesser mittels der Verstelleinrichtung in eine auf seine Rotations-und/oder Umlaufbewegung derart abgestimmte Taumelbewegung versetzt wird, dass eine Schnitzelbildung sicher vermieden wird.Consequently, it is not necessary for the cutting blade as a whole to perform any directed linear movement relative to the knife holder. The desired adjustment may rather be e.g. take place in that, in conjunction with the implementation of blank sections, the cutting blade is offset by means of the adjusting device in such a rotational and / or orbital motion so tuned wobble that a Schnitzelbildung is safely avoided.

Auch eine derartige, insbesondere eine Kipp- und/oder Taumelbewegung darstellende, Verstellbewegung des Schneidmessers ist eine Verstellbewegung des Schneidmessers relativ zu der Messerhalterung in einer Verstellrichtung im Sinne der Erfindung.Such an adjusting movement of the cutting blade, in particular a tilting and / or tumbling motion, is also an adjustment movement of the cutting blade relative to the blade holder in an adjustment direction in the sense of the invention.

Zur Festlegung einer ersten Endstellung und einer zweiten Endstellung des Schneidmessers können an der Messerhalterung Anschläge für das Schneidmesser vorgesehen sein. Die Anschläge können gleichzeitig zur Sicherung des bewegbaren Schneidmessers an der Messerhalterung und zur Festlegung des maximalen Verstellhubs dienen. Durch austauschbare oder ihrerseits verstellbare Anschlagselemente kann der Verstellhub an unterschiedliche Anwendungen angepasst werden.In order to define a first end position and a second end position of the cutting blade, stops for the cutting blade can be provided on the blade holder. The stops can simultaneously serve to secure the movable cutting blade to the knife holder and to determine the maximum Verstellhubs. By exchangeable or in turn adjustable stop elements of the adjustment can be adapted to different applications.

Gemäß einer Ausgestaltung der Erfindung umfasst die Verstelleinrichtung ein elektrisch, hydraulisch oder pneumatisch betätigbares Stellglied, welches auf das bewegbare Schneidmesser einwirkt. Das Stellglied kann dabei direkt auf das Schneidmesser einwirken oder es können geeignete Übertragungselemente zur Vermittlung der Stellkraft des Stellglieds an das Schneidmesser vorgesehen sein.According to one embodiment of the invention, the adjusting device comprises an electrically, hydraulically or pneumatically actuable actuator which acts on the movable cutting blade. The actuator can thereby act directly on the cutting blade or suitable transmission elements can be provided to impart the actuating force of the actuator to the cutting blade.

Gemäß einer weiteren Ausgestaltung bildet ein Bereich des Schneidmessers einen Kolben eines pneumatisch betätigbaren Stellglieds. Dies ermöglicht eine besonders kostengünstige und Platz sparende Konstruktion. Zur Abdichtung eines Zylinders des pneumatisch betätigbaren Stellglieds gegenüber dem als Kolben wirkenden Schneidmesser können Membranen oder Faltenbälge vorgesehen sein.According to another embodiment, an area of the cutting blade forms a piston of a pneumatically actuable actuator. This allows a particularly cost-effective and space-saving design. For sealing a cylinder of the pneumatically actuable actuator relative to the cutting blade acting as a piston membranes or bellows can be provided.

Die Verstelleinrichtung kann wenigstens einen Elektromagneten umfassen, welcher auf das Schneidmesser einwirkt. Bei einer derartigen Ausgestaltung müssen keinerlei Kraftübertragungselemente am Schneidmesser angreifen, weshalb dieses besonders einfach gestaltet sein kann. Insbesondere können gängige Schneidmesser ohne zusätzliche konstruktive Anpassungen verwendet werden.The adjusting device may comprise at least one electromagnet, which acts on the cutting blade. In such an embodiment, no force transmission elements on the cutting blade must attack, which is why this can be designed particularly simple. In particular, common cutting blades can be used without additional structural adjustments.

Die Verstelleinrichtung kann auch ein an der Messerhalterung verschiebbares Element umfassen, das über eine Koppeleinrichtung mit dem Schneidmesser in Verbindung steht. Mittels des verschiebbaren Elements und der Koppeleinrichtung kann die Verstellbewegung auf einfache Weise von einem Antriebselement der Verstelleinrichtung auf das Schneidmesser übertragen werden. Beispielsweise kann es sich bei dem verschiebbaren Element um eine Schiebehülse handeln, die gleitend auf einem Wellenabschnitt der Messerhalterung gelagert ist.The adjusting device may also comprise a displaceable on the knife holder element which is connected via a coupling device with the cutting blade in connection. By means of the displaceable element and the coupling device, the adjusting movement can be transmitted in a simple manner from a drive element of the adjusting device to the cutting blade. For example, the displaceable element may be a sliding sleeve which is slidably mounted on a shaft portion of the knife holder.

Die Koppeleinrichtung kann wenigstens einen Gelenkhebel umfassen, insbesondere mehrere an dem verschiebbaren Element in Umfangsrichtung verteilt angeordnete Gelenkhebel. Die Gelenkhebel können nach Art eines Regenschirms an einem Ende an einer Schiebehülse angebracht sein und am anderen Ende am Schneidmesser angreifen. Bedarfsweise können die Gelenkhebel jeweils zwei oder mehr gegeneinander verschwenkbare Teile umfassen oder auf andere Weise längenveränderlich ausgebildet sein.The coupling device may comprise at least one articulated lever, in particular a plurality of articulated levers distributed on the displaceable element in the circumferential direction. The toggle levers can according to Art an umbrella attached at one end to a sliding sleeve and attack at the other end of the cutting blade. If necessary, the articulated levers may each comprise two or more mutually pivotable parts or be formed variable in length in other ways.

Gemäß einer weiteren Ausführungsform der Erfindung ist die Messerhalterung ein Bestandteil eines Messerkopfes, der in Verstellrichtung gesehen ortsfest ist. Dadurch dass der Messerkopf ortsfest ist, kann eine entsprechende Verstelleinrichtung für den Messerkopf eingespart werden.According to a further embodiment of the invention, the knife holder is a component of a cutter head, which is stationary in the adjustment direction. Because the cutter head is stationary, a corresponding adjusting device for the cutter head can be saved.

Der Messerkopf kann als Sichelmesserkopf für ein um die Messerachse rotierendes Sichelmesser ausgebildet sein. Alternativ kann der Messerkopf als Kreismesserkopf für ein um die Messerachse rotierendes und um die Mittelachse planetarisch umlaufendes Kreismesser ausgebildet sein. Dem Messerkopf kann weiterhin wenigstens ein Rotationsantrieb zugeordnet sein, welcher zusammen mit dem Messerkopf an oder in einem gestellfesten Schneidkopfgehäuse angeordnet ist. Auch der Rotationsantrieb muss erfindungsgemäß zum Verstellen des Schneidmessers nicht zwingend bewegt werden. Wenn es sich um einen Kreismesserkopf handelt, dann kann für die Rotation des Schneidmessers einerseits und für den Umlauf des Schneidmessers, d.h. für die Rotation um die Mittelachse, andererseits ein einziger gemeinsamer Antrieb vorgesehen sein. Es ist aber auch möglich, für jede dieser Bewegungen einen eigenen und/oder separaten Antrieb, insbesondere voneinander unabhängige Antriebe, vorzusehen.The cutter head can be designed as a sickle cutter head for a sickle knife rotating about the cutter axis. Alternatively, the cutter head can be designed as a circular blade head for a circular blade rotating around the blade axis and rotating planetary about the central axis. The cutter head may further be associated with at least one rotary drive, which is arranged together with the cutter head on or in a frame-fixed cutting head housing. Also, the rotary drive according to the invention need not necessarily be moved to adjust the cutting blade. If it is a circular knife head, then for the rotation of the cutting knife on the one hand and for the circulation of the cutting knife, i. for rotation about the central axis, on the other hand, a single common drive be provided. However, it is also possible to provide for each of these movements a separate and / or separate drive, in particular independent drives.

Gemäß einer weiteren Ausführungsform ist das Schneidmesser derart in der Verstellrichtung bewegbar, dass sich der Abstand zwischen dem Schneidmesser und einer Bezugsebene, die parallel zu einer durch die Schneide des in einer Schneidstellung befindlichen Schneidmessers definierten Schneidebene verläuft, verändert. Als Bezugsebene ist z.B. diejenige Ebene zu verstehen, in welcher zumindest näherungsweise während des Schneidebetriebs das vordere Ende des aufzuschneidenden Produktes, also die momentane Schnittfläche des Produktes, liegt. Die Verstellbewegung des Schneidmessers schafft einen ausreichend großen Abstand zwischen der stets durch die Schneide des Schneidmessers definierten Schneidebene und dem vorderen Produktende, wodurch eine Schnitzelbildung verhindert wird. Die Bezugsebene kann auch mit derjenigen Ebene zusammenfallen, in der die Schneidebene liegt, wenn sich das Schneidmesser in der Schneidstellung befindet. Auch dann, wenn sich das Schneidmesser nicht in der Schneidstellung befindet, also zwischen Beginn und Abschluss des Verstellvorgangs, kann die Bezugsebene parallel zur Schneidebene verlaufen. Dies hängt von der konkreten Art und Weise der Verstellbewegung des Schneidmessers ab.According to a further embodiment, the cutting blade is movable in the adjustment direction in such a way that the distance between the cutting blade and a reference plane which is parallel to a cutting blade located in the cutting position by the cutting edge is defined Cutting plane runs, changed. As a reference plane, for example, that level is to be understood, in which at least approximately during the cutting operation, the front end of the sliced product, so the current cutting surface of the product is. The adjustment movement of the cutting blade creates a sufficiently large distance between the cutting plane always defined by the cutting edge of the cutting blade and the front end of the product, whereby a Schnitzelbildung is prevented. The reference plane may also coincide with the plane in which the cutting plane is located when the cutting blade is in the cutting position. Even if the cutting blade is not in the cutting position, ie between the beginning and the end of the adjustment process, the reference plane can be parallel to the cutting plane. This depends on the specific way of adjusting the cutting blade.

Insbesondere kann das Schneidmesser in der Verstellrichtung zur Durchführung wenigstens einer Zusatzfunktion bewegbar sein, insbesondere zur Durchführung von Leerschnitten und/oder zur Schneidspalteinstellung.In particular, the cutting blade may be movable in the adjustment direction for carrying out at least one additional function, in particular for performing blank cuts and / or for cutting gap adjustment.

Die Erfindung wird im Folgenden beispielhaft unter Bezugnahme auf die Zeichnung beschrieben.

Fig. 1
zeigt eine vereinfachte Darstellung einer Vorrichtung zum Aufschneiden von Lebensmittelprodukten gemäß einer ersten Ausführungsform der Erfindung.
Fig. 2
zeigt eine vereinfachte Darstellung einer Vorrichtung zum Aufschneiden von Lebensmittelprodukten gemäß einer zweiten Ausführungsform der Erfindung.
The invention will now be described by way of example with reference to the drawings.
Fig. 1
shows a simplified representation of a device for slicing food products according to a first embodiment of the invention.
Fig. 2
shows a simplified representation of a device for slicing food products according to a second embodiment of the invention.

Gemäß Fig. 1 umfasst ein Hochleistungs-Slicer eine Produktzuführung 11, ein Schneidmesser 13 sowie eine Messerhalterung 15 für das Schneidmesser 13. Das Schneidmesser 13 ist hier als Sichelmesser ausgebildet, welches um eine Messerachse A rotiert. Die Messerhalterung 15 ist in einem Lager 17 drehgelagert und umfasst einen Basisabschnitt 19 sowie einen Steckabschnitt 21. Ein nicht dargestellter Rotationsantrieb dient dazu, die Messerhalterung 15 mittels eines Antriebsriemens in eine Drehbewegung um die Messerachse A zu versetzen. Die Messerhalterung 15 bildet zusammen mit dem Lager 17 einen Messerkopf 23, der gemeinsam mit dem Rotationsantrieb ortsfest in einem nicht dargestellten Schneidkopfgehäuse des Slicers angebracht ist.According to Fig. 1 a high-performance slicer comprises a product feeder 11, a cutting blade 13 and a knife holder 15 for the cutting blade 13. The cutting blade 13 is here designed as a sickle blade, which rotates about a knife axis A. The knife holder 15 is rotatably mounted in a bearing 17 and comprises a base portion 19 and a plug portion 21. An unillustrated rotary drive serves to put the knife holder 15 by means of a drive belt in a rotational movement about the blade axis A. The knife holder 15 forms together with the bearing 17 a cutter head 23 which is fixedly mounted together with the rotary drive in a cutting head housing, not shown, of the slicer.

Eine Schneide 25 des Schneidmessers 13 definiert unabhängig von dem Betriebszustand des Schneidmessers 13 stets eine rechtwinklig zu der Messerachse A verlaufende Schneidebene S. Auf einer Produktauflage 37 der Produktzuführung 11 befindet sich ein Produktriegel 27, an dessen hinterem Ende Haltekrallen 29 angreifen, welche durch einen nicht dargestellten gesteuerten Antrieb in und gegen eine Produktzuführrichtung P bewegbar sind, was in Fig. 1 durch einen Doppelpfeil dargestellt ist. Mittels der angetriebenen Haltekrallen 29 wird der Produktriegel 27 entlang der Produktzuführrichtung P der Schneidebene S zugeführt. Anstatt eines einzelnen Produktriegels 27 können auch mehrere nebeneinander angeordnete Produktriegel gemeinsam der Schneidebene S zugeführt werden.A cutting edge 25 of the cutting blade 13, regardless of the operating state of the cutting blade 13 always defines a perpendicular to the blade axis A extending cutting plane S. On a product support 37 of the product feeder 11 is a product bar 27, engage at the rear end retaining claws 29, which by a non shown controlled drive in and against a Produktzuführrichtung P are movable, which in Fig. 1 represented by a double arrow. By means of the driven retaining claws 29, the product bar 27 is fed along the product feed direction P to the cutting plane S. Instead of a single product bar 27, a plurality of product bars arranged next to one another can be fed together to the cutting plane S.

Während des Betriebs des Hochleistungs-Slicers schneidet das rotierende Schneidmesser 13 mit seiner Schneide 25 durch den Produktriegel 27 hindurch und trennt von diesem Produktscheiben 30 ab, wobei es mit einer das Ende der Produktauflage 37 bildenden Schneidkante 31 zusammenwirkt. Das Zusammenfallen der Schneidebene S mit einer durch die Schneidkante 31 definierten Ebene ist hier einer vereinfachenden Darstellung geschuldet. In der Praxis ist zwischen dem Schneidmesser 13 und der Schneidkante 31 ein kleiner, meist einstellbarer Schneidspalt vorhanden, worauf hier aber nicht näher eingegangen zu werden braucht. Die Vorschubgeschwindigkeit des Produktriegels 27 und somit die Dicke der Produktscheiben 30 ist dabei durch eine entsprechende Ansteuerung der angetriebenen Haltekrallen 29 einstellbar. Die abgetrennten Produktscheiben 30 fallen auf der der Produktzuführung 11 abgewandten Messerrückseite auf eine Auflage 33 und können entlang einer Förderrichtung F weitergefördert bzw. weiterverarbeitet, insbesondere einer automatischen Verpackungsanlage (nicht dargestellt) zugeführt werden.During operation of the high-performance slicer, the rotating cutting blade 13 cuts with its cutting edge 25 through the product bar 27 and separates from this product slices 30, wherein it cooperates with a cutting edge 31 forming the end of the product support 37. The coincidence of the cutting plane S with a plane defined by the cutting edge 31 is here a simplifying view owed. In practice, a small, usually adjustable cutting gap is present between the cutting blade 13 and the cutting edge 31, which need not be discussed here in detail. The feed rate of the product bar 27 and thus the thickness of the product slices 30 can be adjusted by a corresponding control of the driven holding claws 29. The separated product slices 30 fall on the rear side facing away from the product feed 11 on a support 33 and can be further conveyed or further processed along a conveying direction F, in particular an automatic packaging system (not shown) are supplied.

Aus Fig. 1 geht hervor, dass das Aufschneiden des Produktriegels 27 portionsweise erfolgt, d.h. die abgetrennten Produktscheiben 30 bilden Portionen 35, die hier als Scheibenstapel dargestellt sind. Sobald eine Portion 35 fertig gestellt ist, wird diese Portion 35 auf der Auflage 33 in Förderrichtung F abtransportiert. Damit für den Abtransport der fertigen Portionen 35 genügend Zeit zur Verfügung steht, werden bis zum Beginn der Bildung der nächsten Portion 35 die vorstehend erwähnten Leerschnitte ausgeführt, wozu einerseits die auch als Produktvorschub bezeichnete Produktzufuhr - hier also die Haltekrallen 29 - gestoppt und gegebenenfalls zurückgezogen und andererseits das Schneidmesser 13 vom vorderen Ende des Produktriegels 27 weg in die in Fig. 1 gestrichelt dargestellte Stellung bewegt wird. Durch Bewegen des Schneidmessers 13 in diese vom Produktriegel 27 beabstandete Stellung wird eine Schnitzel- oder Schnipselbildung während der Durchführung von Leerschnitten sicher vermieden.Out Fig. 1 shows that the slicing of the product bar 27 is carried out in portions, ie the separated product slices 30 form portions 35, which are shown here as a slice stack. Once a portion 35 is completed, this portion 35 is transported on the support 33 in the conveying direction F. So that sufficient time is available for the removal of the finished portions 35, the above-mentioned empty cuts are carried out until the beginning of the formation of the next portion 35, for which purpose the product feed, also referred to as the product feed - in this case the holding claws 29 - is stopped and optionally withdrawn and on the other hand, the cutting blade 13 from the front end of the product bar 27 away in the in Fig. 1 dashed position shown is moved. By moving the cutting blade 13 into this position spaced from the product bar 27, chip or chip formation during the passage of blank cuts is reliably avoided.

Das Schneidmesser 13 ist auf den Steckabschnitt 21 der Messerhalterung 15 aufgesteckt. Zu diesem Zweck ist eine Durchführung 41 in dem Schneidmesser 13 ausgebildet, welche derart an die äußeren Abmessungen des Steckabschnitts 21 angepasst ist, dass das Schneidmesser 13 auf dem Steckabschnitt 21 in und gegen eine Verstellrichtung V gleitend verschiebbar ist. Zwischen dem Steckabschnitt 21 und dem Basisabschnitt 19 der Messerhalterung 15 ist ein Ansatz 43 ausgebildet, welcher einen hinteren Anschlag 45 für das verschiebbare Schneidmesser 13 bildet. Am vorderen Ende des Steckabschnitts 21 ist ein Sicherungselement 46 angebracht, dessen dem Schneidmesser 13 zugewandte Stirnseite einen vorderen Anschlag 47 für das Schneidmesser 13 bildet. Das Sicherungselement 46 ist von dem Steckabschnitt 21 abnehmbar, um z.B. einen Austausch des Schneidmessers 13 vornehmen zu können.The cutting blade 13 is attached to the plug portion 21 of the knife holder 15. For this purpose, a passage 41 is formed in the cutting blade 13, which is so to the outer dimensions is adapted to the plug portion 21, that the cutting blade 13 on the plug portion 21 in and against an adjustment direction V is slidingly displaceable. Between the plug portion 21 and the base portion 19 of the knife holder 15, a projection 43 is formed, which forms a rear stop 45 for the movable cutting blade 13. At the front end of the plug portion 21, a securing element 46 is attached, the cutting blade 13 facing the end face forms a front stop 47 for the cutting blade 13. The securing element 46 can be removed from the plug-in section 21 in order, for example, to be able to exchange the cutting blade 13.

An der Durchführung 41 des Schneidmessers 13 sowie an dem Steckabschnitt 21 sind nicht dargestellte Profilstrukturen vorgesehen, um eine Drehmitnahme des Schneidmessers 13 durch die rotierende Messerhalterung 15 zu ermöglichen. Das Schneidmesser 13 ist also in radialer Richtung auf der Messerhalterung 15 fixiert und ferner drehfest mit dieser verbunden. In bezüglich der Messerachse A axialer Richtung, nämlich in der Verstellrichtung V, ist das Schneidmesser 13 jedoch relativ zu der Messerhalterung 15 bewegbar.At the passage 41 of the cutting blade 13 and on the plug-in portion 21 profile structures, not shown, are provided to allow a rotational drive of the cutting blade 13 by the rotating blade holder 15. The cutting blade 13 is thus fixed in the radial direction on the blade holder 15 and further rotatably connected thereto. In respect to the knife axis A axial direction, namely in the adjustment direction V, the cutting blade 13, however, is movable relative to the knife holder 15.

Zum gesteuerten Bewegen des Schneidmessers 13 vom vorderen Ende des Produktriegels 27 weg und zum vorderen Ende des Produktriegels 27 hin ist eine Verstelleinrichtung 50 vorgesehen, die bei der Ausführungsform gemäß Fig. 1 durch zwei hier nur schematisch dargestellte Elektromagnete 51, 53 gebildet ist, welche an gegenüberliegenden Seiten des Schneidmessers 13 angeordnet sind und durch eine nicht dargestellte Steuereinrichtung angesteuert werden. Die Elektromagnete 51, 53 sind derart ausgelegt, dass sie das metallische Schneidmesser 13 bei entsprechender Aktivierung schnell in die jeweilige, durch einen der Anschläge 45, 47 vorgegebene, Endlage bewegen können. Zum Bewegen des Schneidmessers 13 relativ zu dem Produktriegel 27 muss somit ausschließlich die Masse des Schneidmessers 13 selbst beschleunigt werden, während alle übrigen Komponenten des Slicers hinsichtlich der Verstellbewegung ortsfest bleiben.For controlled movement of the cutting blade 13 from the front end of the product bar 27 away and towards the front end of the product bar 27 out an adjusting device 50 is provided, which in the embodiment according to Fig. 1 is formed by two here only schematically illustrated electromagnets 51, 53, which are arranged on opposite sides of the cutting blade 13 and are driven by a control device, not shown. The electromagnets 51, 53 are designed such that they can move the metallic cutting blade 13 with appropriate activation quickly in the respective, predetermined by one of the stops 45, 47, end position. To move the cutting blade 13 relative to the product bar 27 thus only the mass of the cutting blade 13 itself must be accelerated, while all other components of the slicer remain stationary with respect to the adjustment.

Fig. 2 zeigt einen Hochleistungs-Slicer gemäß einer alternativen Ausführungsform der Erfindung, wobei zur Vereinfachung der Produktriegel, die Produktzuführung sowie die Produktauflage - welche äquivalent zu der Ausführungsform gemäß Fig. 1 sind - nicht dargestellt sind. Die Verstelleinrichtung 50' umfasst hier eine auf dem Basisabschnitt 19 der Messerhalterung 15 vorgesehene Schiebehülse 55, welche durch einen nicht dargestellten Stellantrieb entlang der Verstellrichtung V vor und zurückbewegt werden kann. An der Außenfläche der Schiebehülse 55 sind in Umfangsrichtung verteilt angeordnete Gelenkhebel 57 angelenkt, welche an ihrem von der Schiebehülse 55 entfernten Ende an dem Schneidmesser 13 angelenkt sind. Um eine Längenveränderlichkeit der Gelenkhebel 57 bereitzustellen, können diese aus wenigstens zwei gegeneinander verschwenkbaren Teilen zusammengesetzt sein, was in Fig. 2 nicht im Einzelnen dargestellt ist. Bei einer Bewegung der Schiebehülse 55 üben die Gelenkhebel 57 eine Zug- oder Druckkraft auf die der Messerhalterung 15 zugewandte Seite des Schneidmessers 13 aus und bewegen dieses somit in eine der durch die Anschläge 45, 47 definierten Endlagen. Fig. 2 shows a high-performance slicer according to an alternative embodiment of the invention, wherein for simplification of the product bars, the product supply and the product support - which is equivalent to the embodiment according to Fig. 1 are - not shown. The adjusting device 50 'here comprises a provided on the base portion 19 of the blade holder 15 sliding sleeve 55, which can be moved forward and back by an actuator, not shown, along the adjustment direction. On the outer surface of the sliding sleeve 55 are distributed in the circumferential direction arranged articulated lever 57 hinged, which are articulated at its end remote from the sliding sleeve 55 on the cutting blade 13. To provide a Längenveränderlichkeit the hinge lever 57, these may be composed of at least two mutually pivotable parts, which in Fig. 2 is not shown in detail. During a movement of the sliding sleeve 55, the articulated levers 57 exert a tensile or compressive force on the side of the cutting blade 13 facing the knife holder 15 and thus move it into one of the end positions defined by the stops 45, 47.

Um eine Verstellkraft auf das Schneidmesser 13 auszuüben, ist abweichend von den vorstehend vorgestellten Ausführungen eine Vielzahl von alternativen Übertragungsmechanismen möglich.In order to exert an adjusting force on the cutting blade 13, a variety of alternative transmission mechanisms is possible deviating from the above-presented embodiments.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

1111
Produktzuführungproduct feed
1313
Schneidmessercutting blade
1515
Messerhalterungknife holder
1717
Lagercamp
1919
Basisabschnittbase section
2121
Steckabschnittplug-in section
2323
Messerkopfcutter head
2525
Schneidecutting edge
2727
Produktriegelproduct Riegel
2929
Haltekrallenretaining claws
3030
Produktscheibeproduct slice
3131
Schneidkantecutting edge
3333
Auflageedition
3535
Portionportion
3737
Produktauflageproduct support
4141
Durchführungexecution
4343
Ansatzapproach
4545
hinterer Anschlagrear stop
4646
Sicherungselementfuse element
4747
vorderer Anschlagfront stop
50, 50'50, 50 '
Verstelleinrichtungadjustment
5151
Elektromagnetelectromagnet
5353
Elektromagnetelectromagnet
5555
Schiebehülsesliding sleeve
5757
Gelenkhebelarticulated lever
AA
Messerachseblade axis
SS
Schneidebenecutting plane
PP
Produktzuführrichtungproduct feed
FF
Förderrichtungconveying direction
VV
Verstellrichtungadjustment

Claims (15)

Vorrichtung zum Aufschneiden von Lebensmittelprodukten (27), insbesondere Hochleistungs-Slicer, mit - einer Produktzuführung (11), - wenigstens einem Schneidmesser (13), das um eine Messerachse (A) rotiert und/oder um eine Mittelachse planetarisch umläuft und dem wenigstens ein aufzuschneidendes Produkt (27) in einer Produktzuführrichtung (P) zuführbar ist, - einer Messerhalterung (15), an der das Schneidmesser (13) anbringbar ist, und - einer Verstelleinrichtung (50, 50'), mittels der das Schneidmesser (13) relativ zu der Messerhalterung (15) in einer Verstellrichtung (V) bewegbar ist. Apparatus for slicing food products (27), in particular high-performance slicers, with a product feeder (11), - At least one cutting blade (13) which rotates about a knife axis (A) and / or planetary about a central axis and the at least one aufzuschneidendes product (27) in a Produktzuführrichtung (P) can be fed - A knife holder (15) to which the cutting blade (13) is attachable, and - An adjusting device (50, 50 '), by means of which the cutting blade (13) relative to the knife holder (15) in an adjustment direction (V) is movable. Vorrichtung nach Anspruch 1,
dadurch gekennzeichnet,
dass die Verstelleinrichtung (50, 50') ausschließlich das Schneidmesser (13) bewegt.
Device according to claim 1,
characterized,
that the adjusting device (50, 50 ') moves only the cutting blade (13).
Vorrichtung nach Anspruch 1 oder 2,
dadurch gekennzeichnet,
dass die Messerhalterung (15) einen rotierend und/oder umlaufend angetriebenen Wellenabschnitt (21) für das Schneidmesser (13) umfasst.
Apparatus according to claim 1 or 2,
characterized,
in that the knife holder (15) comprises a shaft section (21) for the cutting blade (13) driven in rotation and / or in rotation.
Vorrichtung nach zumindest einem der vorstehenden Ansprüche, dadurch gekennzeichnet,
dass das Schneidmesser (13) und die Messerhalterung (15) mittels einer Eingriffseinrichtung, insbesondere einer Verzahnung, derart miteinander koppelbar sind, dass gleichzeitig eine Drehmitnahme des Schneidmessers (13) durch die Messerhalterung (15) und die Relativbewegung des Schneidmessers (13) in Verstellrichtung (V) ermöglicht sind.
Device according to at least one of the preceding claims, characterized
in that the cutting blade (13) and the knife holder (15) can be coupled to each other by means of an engagement device, in particular a toothed drive (13) by the knife holder (15) and the relative movement of the cutting knife (13) in the adjustment direction (V) are possible.
Vorrichtung nach zumindest einem der vorstehenden Ansprüche, dadurch gekennzeichnet,
dass die Messerhalterung (15) in Verstellrichtung (V) gesehen ortsfest ist, und/oder dass die Verstellrichtung (V) parallel zur Messerachse (A) und/oder zur Mittelachse verläuft.
Device according to at least one of the preceding claims, characterized
that the blade holder (15) in the adjustment direction (V) is seen stationary and / or that the adjustment direction (V) parallel to the blade axis (A) and / or to the central axis.
Vorrichtung nach zumindest einem der vorstehenden Ansprüche, dadurch gekennzeichnet,
dass das Schneidmesser (13) relativ zu der Messerhalterung (15) linear verschiebbar ist, und/oder dass das Schneidmesser (13) zu einer Kipp- und/oder Taumelbewegung relativ zu der Messerhalterung (15) anregbar ist.
Device according to at least one of the preceding claims, characterized
in that the cutting blade (13) is linearly displaceable relative to the blade holder (15), and / or that the cutting blade (13) can be excited to tilt and / or wobble relative to the blade holder (15).
Vorrichtung nach zumindest einem der vorstehenden Ansprüche, dadurch gekennzeichnet,
dass zur Festlegung einer ersten Endstellung und einer zweiten Endstellung des Schneidmessers (13) an der Messerhalterung (15) Anschläge (45, 47) für das Schneidmesser (13) vorgesehen sind.
Device according to at least one of the preceding claims, characterized
in that stops (45, 47) for the cutting blade (13) are provided for fixing a first end position and a second end position of the cutting blade (13) on the blade holder (15).
Vorrichtung nach zumindest einem der vorstehenden Ansprüche, dadurch gekennzeichnet,
dass die Verstelleinrichtung (50, 50') ein elektrisch, hydraulisch oder pneumatisch betätigbares Stellglied umfasst, welches auf das bewegbare Schneidmesser (13) einwirkt, wobei insbesondere ein Bereich des Schneidmessers einen Kolben eines pneumatisch betätigbaren Stellglieds bildet.
Device according to at least one of the preceding claims, characterized
in that the adjusting device (50, 50 ') comprises an electrically, hydraulically or pneumatically actuatable actuator which acts on the movable cutting blade (13), wherein in particular a region of the cutting blade forms a piston of a pneumatically actuable actuator.
Vorrichtung nach zumindest einem der vorstehenden Ansprüche, dadurch gekennzeichnet,
dass die Verstelleinrichtung (50) wenigstens einen Elektromagneten (51, 53) umfasst, welcher auf das Schneidmesser (13) einwirkt.
Device according to at least one of the preceding claims, characterized
in that the adjusting device (50) comprises at least one electromagnet (51, 53) which acts on the cutting blade (13).
Vorrichtung nach zumindest einem der vorstehenden Ansprüche, dadurch gekennzeichnet,
dass die Verstelleinrichtung (50') ein an der Messerhalterung (15) verschiebbares Element (55) umfasst, das über eine Koppeleinrichtung (57) mit dem Schneidmesser (13) in Verbindung steht, wobei insbesondere die Koppeleinrichtung (57) wenigstens einen Gelenkhebel umfasst, insbesondere mehrere an dem verschiebbaren Element (55) in Umfangsrichtung verteilt angeordnete Gelenkhebel.
Device according to at least one of the preceding claims, characterized
in that the adjusting device (50 ') comprises an element (55) displaceable on the knife holder (15), which is connected to the cutting blade (13) via a coupling device (57), wherein in particular the coupling device (57) comprises at least one articulated lever, in particular a plurality of articulated levers distributed in the circumferential direction on the displaceable element (55).
Vorrichtung nach zumindest einem der vorstehenden Ansprüche, dadurch gekennzeichnet,
dass die Messerhalterung (15) ein Bestandteil eines Messerkopfes (23) ist, der in Verstellrichtung (V) gesehen ortsfest ist.
Device according to at least one of the preceding claims, characterized
that the blade holder (15) is a part of a cutter head (23) (V) is stationary as seen in the direction of adjustment.
Vorrichtung nach zumindest einem der vorhergehenden Ansprüche, dadurch gekennzeichnet,
dass ein Messerkopf (23) als Sichelmesserkopf für ein um die Messerachse (A) rotierendes Sichelmesser (13) ausgebildet ist, oder dass ein Messerkopf als Kreismesserkopf für ein um die Messerachse rotierendes und um die Mittelachse planetarisch umlaufendes Kreismesser ausgebildet ist.
Device according to at least one of the preceding claims, characterized
that a cutter head (23) is formed as a sickle blade head for a about the blade axis (A) rotating sickle knife (13), or that a cutter head is designed as a circular knife head for a rotating about the blade axis and about the central axis planetary revolving circular blade.
Vorrichtung nach zumindest einem der vorstehenden Ansprüche, dadurch gekennzeichnet,
dass einem Messerkopf (23) wenigstens ein Rotationsantrieb zugeordnet ist, wobei insbesondere der Rotationsantrieb zusammen mit dem Messerkopf (23) an oder in einem gestellfesten Schneidkopfgehäuse angeordnet ist.
Device according to at least one of the preceding claims, characterized
that a knife head (23) is assigned at least one rotation drive, whereby in particular the rotary drive, together with the cutter head (23) is arranged on or in a frame-fixed cutter head housing.
Vorrichtung nach zumindest einem der vorhergehenden Ansprüche, dadurch gekennzeichnet,
dass das Schneidmesser (13) derart in der Verstellrichtung (V) bewegbar ist, dass sich der Abstand zwischen dem Schneidmesser (13) und einer Bezugsebene, die parallel zu einer durch die Schneide (25) des in einer Schneidstellung befindlichen Schneidmessers (13) definierten Schneidebene (S) verläuft, verändert.
Device according to at least one of the preceding claims, characterized
in that the cutting blade (13) is movable in the adjustment direction (V) in such a way that the distance between the cutting blade (13) and a reference plane parallel to one defined by the cutting edge (25) of the cutting blade (13) located in a cutting position Cutting plane (S) runs, changed.
Vorrichtung nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet,
dass das Schneidmesser (13) in der Verstellrichtung (V) zur Durchführung wenigstens einer Zusatzfunktion bewegbar ist, insbesondere zur Durchführung von Leerschnitten und/oder zur Schneidspalteinstellung.-.-.-.
Device according to one of the preceding claims,
characterized,
in that the cutting blade (13) is movable in the adjustment direction (V) for carrying out at least one additional function, in particular for performing blank cuts and / or for cutting gap adjustment.-.-.-.
EP20110002382 2010-04-07 2011-03-22 Device for cutting a food product Not-in-force EP2374584B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE201010013893 DE102010013893A1 (en) 2010-04-07 2010-04-07 Device for slicing food products

Publications (2)

Publication Number Publication Date
EP2374584A1 true EP2374584A1 (en) 2011-10-12
EP2374584B1 EP2374584B1 (en) 2013-12-11

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Application Number Title Priority Date Filing Date
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US (1) US20110247470A1 (en)
EP (1) EP2374584B1 (en)
DE (1) DE102010013893A1 (en)

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DE102010019248A1 (en) * 2010-05-03 2011-11-03 CFS Bühl GmbH Method for operating a slicing device with multi-track drives
DE102013200403A1 (en) * 2012-12-24 2014-06-26 Textor Maschinenbau GmbH Device for slicing food products
US20140260868A1 (en) * 2013-03-15 2014-09-18 Dienes Corporation Usa Slitting Machine
DE102017112177B4 (en) * 2017-06-02 2023-11-23 Tvi Entwicklung Und Produktion Gmbh Cutting unit and cutting process
EP3495104B1 (en) * 2017-12-05 2020-07-15 Marel A/S A food singulator apparatus

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EP2374584B1 (en) 2013-12-11
DE102010013893A1 (en) 2011-10-13
US20110247470A1 (en) 2011-10-13

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