EP2357064B1 - Vorrichtung zum Aufschneiden von Lebensmittelprodukten - Google Patents

Vorrichtung zum Aufschneiden von Lebensmittelprodukten Download PDF

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Publication number
EP2357064B1
EP2357064B1 EP10015738.7A EP10015738A EP2357064B1 EP 2357064 B1 EP2357064 B1 EP 2357064B1 EP 10015738 A EP10015738 A EP 10015738A EP 2357064 B1 EP2357064 B1 EP 2357064B1
Authority
EP
European Patent Office
Prior art keywords
blade
cutting
product
cutting blade
movement
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP10015738.7A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2357064A2 (de
EP2357064A3 (de
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
Priority claimed from DE200910059856 external-priority patent/DE102009059856A1/de
Priority claimed from DE102010011172A external-priority patent/DE102010011172A1/de
Application filed by Weber Maschinenbau GmbH Breidenbach filed Critical Weber Maschinenbau GmbH Breidenbach
Publication of EP2357064A2 publication Critical patent/EP2357064A2/de
Publication of EP2357064A3 publication Critical patent/EP2357064A3/de
Application granted granted Critical
Publication of EP2357064B1 publication Critical patent/EP2357064B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/26—Means for mounting or adjusting the cutting member; Means for adjusting the stroke of the cutting member
    • B26D7/2628—Means for adjusting the position of the cutting member
    • B26D7/2635—Means for adjusting the position of the cutting member for circular cutters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
    • B26D1/12—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis
    • B26D1/14—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
    • B26D1/12—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis
    • B26D1/14—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter
    • B26D1/157—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter rotating about a movable axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
    • B26D1/12—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis
    • B26D1/25—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member
    • B26D1/26—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member moving about an axis substantially perpendicular to the line of cut
    • B26D1/28—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member moving about an axis substantially perpendicular to the line of cut and rotating continuously in one direction during cutting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D2210/00—Machines or methods used for cutting special materials
    • B26D2210/02—Machines or methods used for cutting special materials for cutting food products, e.g. food slicers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D2210/00—Machines or methods used for cutting special materials
    • B26D2210/02—Machines or methods used for cutting special materials for cutting food products, e.g. food slicers
    • B26D2210/08—Idle cutting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D5/00—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D5/02—Means for moving the cutting member into its operative position for cutting
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/04—Processes
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/647—With means to convey work relative to tool station
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/768—Rotatable disc tool pair or tool and carrier
    • Y10T83/7684—With means to support work relative to tool[s]
    • Y10T83/7722—Support and tool relatively adjustable
    • Y10T83/7726—By movement of the tool

Definitions

  • the invention relates to a device for slicing food products, in particular high-performance slicer, with a product feed, at least one cutting blade which rotates about a knife axis and / or planetary about a central axis and the at least one product to be cut in a product feed direction can be fed, and one Adjusting device for the cutting blade, with which the cutting blade between a cutting position and an additional function position is movable.
  • 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, whereby this axis of rotation itself does not carry out any additional movement.
  • 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 it can be said that with only rotating sickle knives higher cutting speeds can be achieved, whereas rotating and additional planetary rotating circular knives can be used universally without sacrificing cutting quality.
  • the required knife stroke is only a few millimeters, but must be done in a very short time in the order of a few hundredths of a second.
  • the possibility of a knife adjustment can also for more Additional functions can be used, for example, for adjusting the cutting gap or for idle cuts in the context of a height adjustment or adjustment of the depth of the cutting blade, which takes place in particular with respect to the or products to be cut or the product edition, which 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, in particular a chopper with adjustable cutting blade of the type mentioned above To further improve that the blade adjustment is structurally simple and reliable, and in particular in connection with the implementation of blank sections can be used.
  • a knife holder to which the cutting blade is replaceably attachable is provided.
  • the knife holder and / or a cutter head is adjustable, which is coupled to a first region with the adjusting device and a second region with a guide, wherein the adjusting movement of the cutting blade is a pivoting or tilting movement or a pan - Includes or tilting movement and is determined by an exciter movement of the adjusting and by the guide.
  • the guide comprises at least one link and / or lever, which on the one hand is articulated on the knife holder and / or the cutter head and on the other hand on a base.
  • the adjusting device not only serves to generate the adjusting movement, but at the same time ensures that the adjusting movement and thus the movement of the cutting blade in space are determined.
  • the adjustment and the guide which attack in particular different areas of the knife holder and / or the cutter head, so together can form a positive guide for the cutting blade and set in this way its movement in the room clearly. Therefore, it is not necessary according to the invention, in addition to at least two guides of whatever kind of guides the cutting blade to provide the adjustment as a third device which engages a third portion of the knife holder and / or the cutter head to set the cutting blade only in motion while fixing the adjustment movement only by the two or more guides or brackets. Therefore, according to the invention, the adjustment of the cutting blade can be realized in a particularly simple manner in terms of design.
  • the adjustment of the cutting blade can, but need not, be a pure pivoting or tilting movement.
  • the adjusting movement may be a superposition of two individual movements, one of which is predetermined by the guide and the other by the adjusting device.
  • the guide for the cutting blade may include a pivot bearing.
  • the guide comprises at least one link and / or lever, in particular at least one pair of links and / or levers, which are respectively hinged on the one hand to the knife holder and / or the cutter head and on the other hand to a base.
  • the base is in particular a cutting head housing. It is provided in particular that the articulation is located at the base above the articulation on the knife holder and / or the cutter head.
  • the adjusting device comprises an eccentric drive.
  • the adjusting device may comprise a linear drive, which is in particular a spindle drive or a cylinder-piston arrangement.
  • the knife holder and / or the cutter head is pivotally suspended on the second region and kept deflectable at the first region.
  • the adjusting device and / or the guide can be coupled to a rotary bearing for a drive shaft.
  • the drive shaft may be part of a drive unit which is adjustable and thereby causes the adjustment of the cutting blade.
  • the drive unit in turn can be part of a knife head comprising the cutting blade.
  • the drive unit can carry a knife head, which is a sickle cutter head for a sickle knife rotating about the knife axis or a circular razor head for a circular blade rotating around the knife axis and rotating around the central axis planetary.
  • the adjustable drive unit can thus be universally used for different types of cutter heads.
  • the cutting blade for adjusting the cutting blade, the cutting blade, the blade holder, to which the cutting blade is interchangeably attachable, and / or the drive unit carrying the blade head, is adjustable.
  • the drive unit comprises a drive shaft and at least two spaced apart in the direction of the longitudinal axis of the drive shaft pivot bearing for the drive shaft. It can be provided that the one pivot bearing is coupled to the adjustment and the other pivot bearing with the guide. Independent protection is claimed for this principle, which will be discussed in more detail below.
  • the cutter head is adjustable as a whole by means of the adjusting device, wherein preferably the cutter head, the knife holder to which the cutting blade replaceable attachable is, and at least one pivot bearing for the movement of the cutting blade around the blade axis and / or around the central axis comprises.
  • the knife head can again be a sickle cutter head for a sickle knife rotating about the knife axis or a circular knife head for a circular knife rotating around the knife axis and rotating around the central axis planetary.
  • the invention proposes that a stationary frame is provided, wherein the cutter head as a whole or the knife holder, to which the cutting blade is replaceably attachable, relative to a frame-fixed carrier is adjustable.
  • the carrier may be arranged on or in a cutting head housing.
  • the carrier may also be the cutting head housing itself.
  • the adjusting movement of the cutting blade is designed such that in the additional function position of the cutting blade, the distance between the cutting blade and a reference plane which is parallel to a cutting plane defined by a cutting edge of the cutting blade located in the cutting position, with increasing distance from a through a product level of the product feed defined level increases.
  • the cutting knife can be tilted forward as it were. This can take into account the fact that in a continuously advancing during cutting feed of the product in a manner known to those skilled in a projecting beyond the cutting plane, at least approximately wedge-shaped front product section is present without an adjustment of the cutting blade in an undesirable manner from the product would be disconnected if the product feed - for example, to carry out blank cuts - temporarily stopped.
  • the adjusting movement of the cutting blade can be designed such that the cutting blade is at least approximately pivotable or tiltable about a, in particular imaginary, point which is located in a plane defined by the product support level or below.
  • a rotary drive associated with the cutting blade may be arranged fixed to the frame or capable of compensating movement adapted to the adjusting movement of the cutting blade.
  • the rotary drive can be arranged together with a cutter head on or in a frame-fixed cutting head housing.
  • the rotary drive cooperates with the cutter head which carries out the adjusting movement as a whole or with a part of the cutter head, in particular the knife holder, which carries out the adjusting movement, in particular via at least one drive belt.
  • the adjustment movement of the cutting blade is designed such that in the additional function position, the distance between the cutting blade and a reference plane which runs parallel to a defined by a cutting edge of the cutting blade cutting position cutting plane and in particular on the product facing facing Side of the cutting blade increases with increasing distance from a plane defined by a product support of the product feeder.
  • a drive unit for the cutting blade is adjustable, comprising a drive shaft and at least two spaced in the longitudinal axis of the drive shaft pivot bearing for the drive shaft, wherein the one pivot bearing with the adjustment and the other pivot bearing is coupled with a guide.
  • the devices of the present invention may be used to make blank cuts, particularly when portioning food products, with the cutting knife being moved away from the front end of the product to temporarily interrupt slicing of the product, and after carrying out one or more slices to resume slicing of slices the product is moved back again.
  • the idle cuts can be made while the product feed is stopped. It is alternatively also possible to continue the product feed during the blank cutting phase.
  • additional function is to be understood as meaning a function which does not exclusively relate to the actual slicing function, that is to say the rotational or rotary movement of the cutting blade.
  • the additional function is, in particular, the performance of empty cuts when portionwise slicing the products.
  • the additional function may also be a height adjustment or adjustment of the immersion depth of the cutting blade, in particular with regard to the product (s) to be sliced or the product overlay, more precisely to avoid the formation of chips in the case of blank cuts made as part of the height or immersion depth adjustment.
  • the adjustment movement of the knife is thus when needed when the additional function is to be performed, this additional function - depending on their nature - with rotating or rotating cutting blade and / or with a stationary cutting blade is feasible.
  • - if meaningful - this should generally be understood to mean the performance of a kind of additional function, as is explicitly mentioned, for example, in the present disclosure.
  • the adjusting movement of the cutting blade is a pivoting or tilting movement or comprises a pivoting or tilting movement.
  • This has the advantage that the forces required for adjusting can be kept relatively low.
  • the adjusting movement is designed such that the cutting blade is no longer aligned parallel to the given in the cutting position cutting plane in the additional function position with the cutting plane defined by the cutting blade, then this is irrelevant for the implementation of blank sections, as it depends on the orientation of the cutting blade with respect to the front end of the product basically does not arrive, as long as it is ensured that no chips are separated from the front end of the product, for example by taking care that there is sufficient clearance between the cutting blade and the front end of the product.
  • a background of this aspect is the fact that in known solutions, in principle, the product feed, for example during the blank cut phase is stopped, ie the conveying of the product along the feed direction is temporarily interrupted. Upon completion of the blank cutting phase, ie when the product and cutting blade are brought back together, the product feed is started again. There is the problem that there may be irregularities in the movement of the front product end, which manifests itself in a reduced quality of cut. The same applies to other additional functions than the execution of blank sections.
  • the recognition is considered that a cause of e.g. blank cut quality losses could be that each time the product feed is restarted, the stiction must first be overcome, which temporarily provides increased mechanical resistance to the driving components of the product feed. After the transition to the sliding friction phase, this resistance decreases rapidly and can lead to a short-term acceleration of the product. Depending on the consistency of the product as well as e.g. The number, frequency and duration of the blank cutting phases can thus result in unevenness in the product feed, which can ultimately lead to a deterioration of the cutting quality.
  • the product feeder according to this aspect is adapted to continue to convey the product during the additional function phase along the feed direction.
  • the repeated interruption and restarting of the product feed with regard to the cutting results is disadvantageous.
  • stopping the product feed in the feed direction for example, during the blank cutting phase is not absolutely necessary. For example, in certain applications it might be acceptable to cut a thicker product slice after each blank cut phase. Should this not be desired, so there is the possibility not to stop the product, but only to reduce the feed rate, as will be explained in more detail below. Eliminating the repeated acceleration and deceleration phases for the product and avoiding a periodic sequence of stiction phases and sliding friction phases enables much more stable and consistent operation of the cutting device, which offers significant cutting quality advantages, especially for high speed, high speed slicers.
  • the product feeder is configured to convey the product along the feed direction during the blank cut phase at a reduced idle speed.
  • the product conveying speed is therefore reduced at the beginning of the blank cutting phase compared to the current value.
  • This reduction of the product conveying speed to the idle speed is independent of the fact that the product conveying speed may also be subject to fluctuations during normal cutting operation.
  • a controller can ensure that, despite the change in the size of the product cross-sectional area, product slices of the same weight are always separated by continually adjusting the conveying speed during slicing of the product.
  • the speed reduction in such an application is to be seen in relation to the respective current value of the normal cutting speed or to an average value for the normal cutting speed.
  • the extent of the speed reduction can be widely chosen according to the particular application, since it is sufficient to prevent complete stopping or stopping of the product in order to exclude stiction effects.
  • the idle speed may be selected depending on the duration of the blank cut phase and / or the size of the gap between the cutting blade and the product. In particular, the longer the duration of the blank-cut phase or the greater the distance between the cutting blade and the product, the lower the speed of the idle-cut can be selected. This can ensure that no unwanted thick product slices are separated during the rimpedement of the cutting blade and product after completion of the blank cutting phase.
  • An embodiment provides that e.g. for the blank cutting phase for the preparation of the distance, the cutting blade is movable relative to the product.
  • the cutting blade comprehensive and be provided for the blank cutting phase for the preparation of the distance as a whole movable cutting head, which is adjusted accordingly.
  • One of the advantages of this variant is that a bearing required for a rotation of the cutting blade is not affected by the adjusting movement.
  • the term cutting head is to be understood broadly insofar as this does not specify the size or the circumference of the unit which can be adjusted as a whole.
  • a drive motor which is responsible for the rotary drive of the cutting blade can either belong to the cutting head and thus jointly be moved with the cutting blade and the other components or not participate in this movement.
  • the drive means between so far stationary drive motor on the one hand and cutting blade or blade shaft on the other hand can be designed in this case so that they allow the adjustment.
  • the cutting head may comprise only a so-called cutter head, which may in particular comprise the cutting blade together with the holder and gear, or the cutter head and a so-called cutter head housing which at least partially surrounds the cutter head and may comprise the drive motor providing the rotary drive of the cutter blade, the latter is not mandatory.
  • a maximum adjustment of not more than 5 to 10 mm is sufficient for the situations which are relevant in practice, in which an adjustment of the cutting blade is required or desired, in many cases the maximum necessary Adjustment paths are even smaller than 5 mm.
  • At least a part of the product feed can be movable relative to the cutting blade.
  • a product support or sled-like member thereof could be moved relative to the cutting blade, or the product supply as a whole could be moved away from the cutting blade to make idle cuts.
  • the manner in which the spacing between the product and the cutting blade ultimately takes place is left to the particular application and can be selected in particular depending on the type of knife or the product feed arrangement.
  • the distance between the product and the cutting blade should be made within a few milliseconds.
  • the product feed comprises a product support on which the product rests, and / or a conveying means acting on the rear product end and / or on a product side, the product support and / or the conveying means being used for the blank cutting phase for producing the distance is movable relative to the cutting blade.
  • the product may rest on a slidable carriage which is retracted from the cutting blade to make idle cuts about a return stroke.
  • the product could also rest on a belt conveyor which moves the product to make blank cuts against the direction of advance.
  • the conveyor may be e.g. to act driven claws, which attack the rear end of the product and promote the product on the product support along the feed direction.
  • a further embodiment provides that the product rests on a product support and by means of a, in particular at the rear product end and / or on a product side attacking, conveying means is movable relative to the product support, for example, for the blank cut phase for the preparation of the distance, the product support relative to the cutting blade and during the blank cutting phase, the product by means of the conveying means is movable relative to the product support.
  • the conveyor can thus be moved away during the blank cut phase as a whole by a return stroke of the cutting blade, while still the Feed product in the feed direction, so that there is always a relative movement between product and product support.
  • the invention also relates to a method for slicing food products, in particular by means of a device of the type specified here, wherein at least one product to be sliced in a product feed direction by means of a product feed at least one cutting blade which rotates about a knife axis and / or planetary about a central axis is supplied, and an adjusting device for the cutting blade is provided, with which the cutting blade, in particular for performing blank cuts, between a cutting position and an additional function position is movable. It is provided that the cutting blade is replaceable attachable to a knife holder.
  • the knife holder and / or a cutter head is adjustable, which is coupled to a first region with the adjustment and at a second region with a guide, and for adjusting the cutting blade, a pivoting or tilting movement of the cutting blade is performed and whose adjusting movement is determined by an exciter movement of the adjusting device and by the guide.
  • the guide comprises at least one link and / or lever, which is articulated on the one hand to the knife holder and / or the cutter head and on the other hand to a base.
  • the adjusting movement of the cutting blade can be carried out in such a way that, in the additional functional position, the distance between the cutting blade and a reference plane which runs parallel to a cutting plane defined by a cutting edge of the cutting blade and, in particular, is located on the side of the cutting blade facing the product supply, increases with increasing distance from one through a product support of the product feed defined plane increases, and / or it can be provided that for adjusting the cutting blade, a drive unit for the cutting blade is adjusted, which comprises a drive shaft and at least two spaced apart in the direction of the longitudinal axis of the drive shaft pivot bearing for the drive shaft, wherein a pivot bearing with the adjustment and the other pivot bearing is coupled to a guide.
  • the product promotion is therefore not stopped at the beginning of the blank cutting phase. In particular, the product promotion can continue to run continuously.
  • a relative movement between the product and a product support on which the product rests is maintained uninterrupted during the blanking phase.
  • the advantage of this uninterrupted maintenance of the relative movement is the avoidance of stiction effects, such as occur at a standstill between product and product support.
  • the cutting knife for the blank cutting phase for producing the distance, the cutting knife, in particular a cutting head comprising the cutting blade and movable for the blank cutting phase for the production of the distance as a whole, relative to the product and / or the product, in particular at least part of the product feed, relative to the cutting blade to be moved.
  • the knife can be moved away from the product or the product away from the knife.
  • a product overlay on which the product rests is moved relative to the cutter blade, during the blank cut phase the product is moved relative to the product overlay.
  • the associated conveyor can be moved with the product support relative to the cutting blade. The relative movement between product and product support caused by the conveying means thus remains unaffected by the relative movement between the product support and the cutting blade.
  • the product can be conveyed along the feed direction at a reduced idle speed.
  • the idle-speed can be selected as a function of the duration of the blank-cut phase and / or the size of the distance between the cutting blade and the product.
  • the idle-speed is selected such that during the blank-cut phase the product is conveyed by an amount corresponding to the desired thickness of the first slice to be separated after the blank-cut phase.
  • Fig. 1 shows a schematic side view of a known from the prior art high-performance slicer, which serves to cut food products 27, such as meat, sausage, ham or cheese, in slices.
  • the product 27 rests on a product support 37 and is moved by means of a product feed 13 along a product feed direction F in the direction of a cutting plane S.
  • the product feeding direction F is perpendicular to the cutting plane S.
  • slicers are also known in which the angle between the product feed direction and the cutting plane is different from 90 °.
  • From the product feeder 13 are in Fig. 1 only the already mentioned product support 37 and a so-called product holder 25 shown, which engages with claws or grippers in the rear end of the product 27 and driven by not shown drive means in and against the product feed F, as indicated by the double arrow.
  • the cutting plane S is always defined by the cutting edge of the cutting blade 11, regardless of the operating state of the cutting blade 11.
  • the cutting blade 11 cooperates with a cutting edge 31, also referred to as a counter knife, which forms the front end of the product support 37.
  • the cutting edge is usually a separate, replaceable component, e.g. made of plastic or steel, which is not shown here for reasons of simplicity.
  • the cutting blade 11 may be a so-called circular blade, which rotates planetary about both a central axis and rotates about its own knife axis.
  • the cutting blade 11 may be a so-called sickle or spiral blade which has a non-circular blade disk with an edge forming the blade, for example, on a spiral path around the blade axis and does not rotate planetary, but only around the blade axis A. rotates.
  • other types of knives may also be provided.
  • the drive for the cutting blade 11 is in Fig. 1 not shown.
  • an adjusting device which is adapted to move the cutting blade 11.
  • the cutting blade 11 can be mounted displaceably parallel to the axis of rotation A.
  • the separated product slices 33 portions 35 which in Fig. 1 are shown as a disk stack.
  • this portion 35 is transported in a direction T. So that there is sufficient time for the removal of the finished slice 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 (here the product holder 25), also referred to as the product feed, is continued or stopped and, on the other hand, the Cutting knife 11 by means of said adjustment in the in Fig. 1 dashed position shown is moved.
  • the product feed here the product holder 25
  • the cutting knife 11 by means of said adjustment in the in Fig. 1 dashed position shown is moved.
  • Fig. 2a schematically shows a slicer according to the invention in a side view.
  • the product feeder 13 is shown in the position in which the product 27 is cut open.
  • the product feeder 13 can be pivoted into an at least approximately horizontal position.
  • the product feed 13 and thus the product feed F is inclined relative to the horizontal H, by an angle ⁇ , which is for example about 40 °.
  • the product feed F and thus by the product support 37 defined plane E is parallel to the knife axis A (but what - as already mentioned above - is not mandatory), here the inclination angle ⁇ between the horizontal H and the plane E of the product support 37 is located.
  • the invention can also be used in conjunction with those slicers in which a product supplied in a horizontal or vertical direction is cut open.
  • the product support 37 represents an inclined plane for the product 27.
  • the advancing movement of the product 27 is thereby supported by the gravitational attraction.
  • the front end of the product is not vertically oriented, as would be the case with a product lying horizontally, so that due to the inclination of the front product end, the filing of the separated product slices 33 - here on a removal belt 45 - improved or even a useful product storage is made possible.
  • FIG. 1 - While in Slicern known from the prior art, the cutting blade 11 - as shown in FIG Fig. 1 - Is moved parallel to the blade axis A, for example, to achieve a distance between the cutting blade 11 and the front end of the product to perform blank cuts are according to the invention - like Fig. 2b
  • Fig. 2b Based on two examples shows - provided adjusting movements of the cutting blade 11, in which the orientation of the cutting blade 11 and thus the orientation of the defined by the cutting edge of the cutting blade 11 cutting plane S changed in space.
  • Fig. 2b is shown by solid lines, the cutting position of the blade 11, in which the cutting plane S and a reference plane defined by the cutting edge 31 coincide, so far as a Simplification represents, as in practice between the cutting blade 11 and the cutting edge 31, a small, usually adjustable cutting gap is present, but what needs not be discussed here in detail.
  • Dashed lines according to one embodiment, an additional function position is indicated, in which the cutting blade 11 - here as part of the cutter head 19 - has experienced an adjustment starting from the cutting position, which - based on the drawing view - taking place in the clockwise pan or tilting movement.
  • the pivoting or tilting movement of the cutting blade is counterclockwise.
  • the invention thus enables - depending on the specific embodiment - Verstellbewegeri the cutting blade or a cutting blade comprising the cutter head both in the one and in the opposite pivoting or tilting.
  • the invention provides that not only the knife 11 or a knife holder alone, but the blade head 19 is only schematically indicated here as a whole is adjusted. This will be described below in connection with the Fig. 3a and 3b or the Fig. 4a and 4b discussed in more detail.
  • the adjustment movement of the blade 11 or the cutter head 19 is ultimately relative to a stationary frame or frame 23 of the slicer. This will be discussed in more detail below in connection with the mentioned figures.
  • the Fig. 3a and 3b show a possible concrete embodiment of the invention.
  • the knife head 19 is a sickle cutter head, ie the cutting knife 11 is a sickle knife, which performs a self-rotating movement about a knife axis A and does not additionally rotate planetary.
  • the knife 11 is removably attached to a here designated as blade holder 17, which is also referred to as a blade holder, rotor or blade shaft.
  • the cutter head 19, which can be adjusted here as a whole in the manner described in more detail below, furthermore comprises a drive shaft 65, which is rotatably mounted in a front pivot bearing 21 and in a rear pivot bearing 20.
  • the rotary drive of the drive shaft 65 by means of a rotary drive forming motor 39 which cooperates via a drive belt 43 with a pulley 71 which is rotatably mounted on the drive shaft 65.
  • the motor 39 is fixedly connected to a wall 47, which is part of a cutting head housing 41, which with respect to the adjustment movement of the cutter head 19 to a stationary frame or frame 23 (see. Fig. 2a and 2 B ) is attached.
  • a cover or hood which is connected to the cutting head housing 41 and at least partially surrounds the cutting blade 11 during the cutting operation, is also provided, but not shown here.
  • the cutter head 19 is pivotally suspended in the front region by means of a pair of levers 63 forming a guide 61 on the cutting head housing 41.
  • the articulation points 73 of the lever 63 on the cutting head housing 41 are above and behind the articulation points 75 of the lever 63 on the cutter head 19. This suspension of the cutter head 19 via the front pivot bearing 21st
  • the cutter head 19 is held by an adjusting 15 such that for adjusting the cutter head 19 and thus the cutting blade 11 relative to the cutting head housing 41, the rotary shaft 20 rotatably supporting the drive shaft 65 by an exciter movement of the adjusting 15 is deflectable.
  • This excitation movement is generated by a fixed, rotatably drivable shaft 67 with respect to the cutting head housing 41 being connected in a rotationally fixed manner to an eccentric 69 which can rotate in a corresponding receptacle of the rotary bearing 20.
  • the suspension or mounting of the cutter head 19 is designed in this embodiment such that a rotational movement of the eccentric 69 generated by rotation of the shaft 67 by 90 ° counterclockwise (as in Fig. 3b indicated by the arrow) causes an adjusting movement V of the cutter head 19 and thus of the cutting blade 11, which comprises a clockwise pivoting or tilting movement.
  • the pivot bearing 20 - and thus the cutter head 19 in its rear region - moves forward and downward.
  • the lever 63 pivotable suspension results in the mentioned adjustment movement, which has the consequence that the orientation of the defined by the cutting edge of the cutting blade 11 cutting plane S with respect to the cutting head housing 41 and thus with respect to the front end of the Product 27 changed.
  • Fig. 4a and 4b is different from that of the Fig. 3a and 3b in particular by another front pivotable suspension of the cutter head 19 and an opposite rotational movement of the cooperating with the rear pivot bearing 20 via the eccentric 69 shaft 67 of the adjusting device 15th
  • the articulation points 73 and 75 of the lever 63 are at least approximately in a plane parallel to the cutting plane S of the blade 11 in the in Fig. 4a shown cutting position runs.
  • the suspension and mounting of the cutter head 19 in this embodiment are selected such that the here taking place in a clockwise rotational movement of the eccentric 69 by 90 ° has the consequence that the rear pivot bearing 20 of the cutter head 19 with respect to the cutting head housing 41 moves forward and upward , As a result, the cutter head 19 and thus the cutting blade 11 is tilted forward.
  • the blank position according to Fig. 4b thus takes the distance between the cutting blade 11 and the original, in the cutting position according to Fig. 4a given position of the cutting plane S with increasing distance from the plane defined by the product edition level E.
  • the position of the articulation points 73 and 75 alone is not determinative of the "direction of rotation" of the tilting movement of the cutting blade 11, but merely a parameter of several parameters that determine the overall direction and extent of the tilting movement of the cutting blade 11.
  • this adjustment can be designed such that the cutting blade 11 is pivoted or tilted at least approximately to a virtual point, which lies in the plane defined by the product support level E or below.
  • the cutter head 19, including the adjusting device 15, may alternatively be designed in such a way that the cutter head 19 together with the adjusting device 15 lies completely within the cutter head housing 41.
  • additional measures which have not been mentioned so far can be provided in order to compensate at least partially for the deflection or elongation of the drive belt 43 which occurs when adjusting the cutter head 19 and thus the belt pulley 71 rotating directly from the drive belt 43.
  • One measure for this purpose may be, for example, to move the rotary drive motor 39 in a manner adapted to the adjustment movement of the cutter head 19 during adjustment of the cutter head 19 in such a way that the effects of the cutter head adjustment movement on the drive belt 43 are compensated, at least to a certain extent.
  • the effect of the belt elongation or deflection can also by a suitable orientation of the cutter head, which of those in the Fig. 3a and 3b or in the Fig. 4a and 4b deviates, at least largely eliminated.
  • a cutting device is shown as known from the prior art.
  • the cutting device comprises a product feeder 111, which comprises a product support 113 and a conveyor 115.
  • On the product support 113 is a product 117, at the rear end of the conveyor 115 engages to promote the product 117 on the product support 113 along a feed direction R 1 with a conveying speed V 01 through a cutting plane S1.
  • the conveying speed V o 1 may be an average or base value by which the actual value fluctuates, for example, to adapt to a varying cross-sectional shape of the product.
  • the product feeder 111 may comprise other components for product guidance and support, such as lateral guide rails or hold down, which are in Fig. 5 for the sake of simplicity are not shown.
  • the conveying means 115 is a pair of driven claws which push the product 117 onto the cutting plane S 1.
  • a cutting blade 119 rotates planetary, wherein alternatively, a non-planetary rotating, but only rotating cutting blade, in particular a sickle knife, can be used.
  • the cutting blade 119 cooperates with a cutting edge 121 which is provided at the front end of the product support 113 and here defines the cutting plane S1, which acts as a counter knife in order to cut off slices from the conveyed product 117.
  • the separated product slices fall on an in Fig. 5 also not shown transport device, such as a movable table or a belt or belt conveyor, and are removed in portions.
  • transport device such as a movable table or a belt or belt conveyor
  • they can be a downstream packaging machine be supplied.
  • a blank cutting phase is provided in the cutting device, in which the cutting knife 119 continues to move, but does not separate any slices from the product 117.
  • a distance D 1 between the cutting blade 119 and the front end 120 of the product 117 is established, as shown in FIG Fig. 6 evident.
  • the cutting blade 119 is moved away from the product feeder 111 to carry out blank cuts.
  • the procedure could also be reversed, ie the product feed 111 together with the product support 113 and the conveying means 115 are withdrawn from the cutting blade.
  • the return stroke which corresponds to the distance D1, is in Fig. 6 exaggerated for clarity. As stated above, it is usually only a few millimeters.
  • the product feed is stopped or stopped by the conveyor 115 is driven accordingly.
  • the conveying speed V 0 1 is thus zero during the idle phase.
  • Fig. 7 showing a slicing apparatus according to an embodiment of the invention and in which the same reference numerals are used as in Figs Fig. 5 and 6 , the product 117 continues to be conveyed by the conveyor 115 during the blank cutting phase.
  • the slicing device according to Fig. 7 the same characteristics as those associated with Fig. 5 and 6 described device of the prior art.
  • the promotion during the blank cutting phase is carried out with a Leerterrorism Marie V L 1, which is reduced compared to the original conveying speed V 0 1. This is achieved in that the conveyor 115 by a in Fig. 7 not shown control device is driven accordingly. During the blank cutting phase, therefore, a relative movement between the product 117 and the product support 113 is maintained uninterrupted.
  • the value of the blank-cut velocity V L 1 is selected such that during the blank-cut phase the product 117 is conveyed by a delivery amount M 1 which corresponds to the desired thickness of the product slice to be separated first after the blank cut phase.
  • the product slice thickness then remains constant, although a steady product feed takes place, so that therefore by the Leer bainphase no negative influence on the product slice thickness is exercised. This means that the more the idle speed V L 1 is selected, the lower the more idle cuts to be made in the idle phase or the greater the distance D1.
  • the backward movement of the cutting blade 119 to terminate the blanking phase is carried out in particular in time with the cutting movement of the cutting blade, for example, with its angular position to ensure trouble-free resumption of the cutting operation.
EP10015738.7A 2009-12-21 2010-12-16 Vorrichtung zum Aufschneiden von Lebensmittelprodukten Active EP2357064B1 (de)

Applications Claiming Priority (2)

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DE200910059856 DE102009059856A1 (de) 2009-12-21 2009-12-21 Vorrichtung zum Aufschneiden von Lebensmittelprodukten
DE102010011172A DE102010011172A1 (de) 2010-03-12 2010-03-12 Vorrichtung zum Aufschneiden von Lebensmittelprodukten

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EP2357064A2 EP2357064A2 (de) 2011-08-17
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JP5779610B2 (ja) * 2013-03-19 2015-09-16 株式会社なんつね 食品のスライス方法及びその装置
JP5975574B2 (ja) * 2013-06-10 2016-08-23 株式会社日本キャリア工業 スライス肉片のトレー盛付方法
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US20110179922A1 (en) 2011-07-28
EP2335888B1 (de) 2015-09-23
US20110185865A1 (en) 2011-08-04
ES2549909T3 (es) 2015-11-03
ES2556769T3 (es) 2016-01-20
EP2357064A2 (de) 2011-08-17
EP2335888A1 (de) 2011-06-22
EP2357064A3 (de) 2012-01-11

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