EP2335888B1 - procédé pour découper des produits alimentaires - Google Patents

procédé pour découper des produits alimentaires Download PDF

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Publication number
EP2335888B1
EP2335888B1 EP10015739.5A EP10015739A EP2335888B1 EP 2335888 B1 EP2335888 B1 EP 2335888B1 EP 10015739 A EP10015739 A EP 10015739A EP 2335888 B1 EP2335888 B1 EP 2335888B1
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EP
European Patent Office
Prior art keywords
product
cutting
cutting blade
blank
phase
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
EP10015739.5A
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German (de)
English (en)
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EP2335888A1 (fr
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 EP2335888A1 publication Critical patent/EP2335888A1/fr
Application granted granted Critical
Publication of EP2335888B1 publication Critical patent/EP2335888B1/fr
Active legal-status Critical Current
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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 method according to the preamble of claim 1.
  • EP 1 046 476 A2 basically known and serve to slice food products such as sausage, meat and cheese at high speed in slices. Typical cutting speeds are between several hundred to a few 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 a rotation axis, whereby this rotation axis itself does not perform any additional movement. In contrast, rotating circular blades additionally rotate around a planetary axis spaced apart from the axis of rotation. Which knife type or type of drive is to be preferred depends on the respective application.
  • the product feed is stopped during the blank cut phase, i. the conveyance of the product along the feed direction is temporarily interrupted.
  • the blank cutting phase ie when the product and cutting blade are brought back together, the product feed is started again.
  • An object of the invention is therefore to provide a way to avoid a deterioration of the cut quality in a slicing method of the type mentioned despite recurrent blanks phase.
  • the invention takes into account the recognition that a cause of the cut-to-size cut quality losses could be that at each restart of the product feed, 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 the number, frequency and duration of the blank cutting phases, unevenness in the product feed can thus arise, which can ultimately lead to a deterioration of the cutting quality.
  • the product feed according to the invention continues to be along the feed direction during the blank cutting phase promoted.
  • 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 during the blank cut 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, it is possible 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 invention provides a method for slicing food products.
  • a product feed by means of a product feed, at least one product is conveyed along a feed direction through a cutting plane in which at least one cutting blade, in particular rotating and / or rotating, moves to separate slices from the product.
  • a clearance is established between the cutting blade and the product.
  • the product continues to be conveyed along the feed direction.
  • the product promotion is therefore not stopped as in the solutions of the prior art at the beginning of the blank cutting phase. In particular, the product promotion can continue to run continuously.
  • the method for slicing is carried out in particular by means of a device for slicing food products, in particular high-performance slicer.
  • the product feeder is configured to convey the product along the feed direction during the idle phase with 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 conveyor 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 chosen within wide ranges according to the respective application, since it is sufficient according to the invention 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, the lower the blank-speed can be chosen or the greater the distance between the cutting blade and the product. 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 of the slicing device provides that for the blank cutting phase for the production 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 be moved together with the cutting blade and the other components or not participate in this movement.
  • the drive means between insofar stationary drive motor on the one hand and cutting blade or blade shaft on the other hand can be configured in this case, that they allow the adjustment movement.
  • 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 portion of the product feed may be movable relative to the cutting blade for the blank cut phase to produce the gap.
  • 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 that is to say by moving the cutting blade or by moving part of the product feed, is left to the particular application and can be selected in particular depending on the type of knife or the product feed arrangement. For common applications with high cutting speed, for a blank cut phase starting from the regular cutting operation, 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 of the slicing apparatus provides for the product to rest on a product support and to be movable relative to the product support by means of a conveying means acting on the rear end of the product and / or on a product side, the product support being relatively movable for the idle phase for producing the distance to the cutting blade and during the blank cutting phase the product is movable relative to the product support by means of the conveying means.
  • 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 promoting the product in the feed direction, so that there is always a relative movement between product and product support.
  • an adjusting device is provided for the cutting blade, with the Cutting knife between a cutting position and an additional function position is movable, in particular for performing blank cuts.
  • the cutting blade is mounted on a cutter head, wherein the cutter head is coupled at a first region with the adjusting device and at a second region with a guide, wherein the adjusting movement of the cutting blade determined by an exciter movement of the adjusting device and by the guide is and / or it is provided that the adjusting 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 is parallel to a defined by a cutting edge of the cutting blade cutting plane and in particular on the product feed side facing of the cutting blade increases with increasing distance from a plane defined by a product support of the product feed, and / or it is provided that for adjusting the cutting blade, a drive unit for the cutting blade is adjustable, comprising 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 the one pivot bearing with the adjusting device and the other Swivel bearing is coupled with a guide.
  • the adjusting movement of the cutting blade can be a pivoting or tilting movement or comprise a pivoting or tilting movement.
  • 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 are determined in space.
  • the adjusting and the guide which attack in particular different areas of the cutting blade, 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 to provide the adjusting device as a third device in addition to at least two guides or holders of the cutting blade of whatever kind. engages a third portion of the cutting blade to set the cutting blade only in motion, while the determination of the adjustment movement takes place only by the two or more guides or holders. Therefore, the adjustment of the cutting blade can be realized in a structurally particularly simple manner.
  • the adjusting movement of the cutting blade is a pivoting or tilting movement or comprises a pivoting or tilting movement.
  • the adjustment movement the cutting blade can so, but does not have to 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 coupled with the adjusting first portion of the cutting blade can - seen in the product feed direction - located in front of the coupled with the guide second portion of the cutting blade.
  • 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 cutting blade and on the other hand to a base.
  • the base is in particular a cutting head housing. It is particularly provided that the articulation is located at the base on the articulation on the cutting blade.
  • 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 cutting blade is attached to a cutter head, wherein the cutter head is deflectably supported on the first portion and suspended pivotally on the second portion.
  • 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 knife head for a circular knife 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 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.
  • a cutter head as a whole is adjustable by means of the adjusting device, the cutter head preferably comprising a knife holder to which the cutting knife is replaceably attachable, and at least one rotary bearing for the movement of the cutting blade about the knife axis and / or about the central axis.
  • the knife head may be a sickle cutter head for a sickle blade rotating about the blade axis or a circular blade head for a circular blade rotating about the blade axis and orbiting around the center axis.
  • a stationary frame wherein a cutter head as a whole or a knife holder to which the cutting blade is exchangeably 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 adjustment movement of the cutting blade is designed such that in the additional functional 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 one level defined by a product overlay of the product feeder.
  • 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 adjusted to this phenomenon in such a way that the cutting blade is pivoted or tilted in accordance with this wedge shape, ie The cutting blade is adjusted as needed to avoid the formation of chips. Independent protection is claimed for this principle, which will be discussed in more detail below.
  • 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.
  • the cutting blade may be associated with a rotary drive.
  • 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 a knife head which carries out the adjusting movement as a whole or with a part of the knife head, in particular a knife holder, which carries out the adjusting movement, in particular via at least one drive belt.
  • the adjusting movement of the cutting blade is designed such that in the additional function position of the distance between the cutting blade and a reference plane parallel to a through a cutting edge of in the cutting position cutting knife defined cutting plane runs and in particular is located on the product feed side facing the cutting blade increases with increasing distance from a defined by a product support the product feed level.
  • the adjusting movement of the cutting blade can be designed such that the cutting blade is at least approximately pivotable or tiltable about an, in particular imaginary, point which is located in the plane defined by the product support or below.
  • 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 bearings for the drive shaft, said a pivot bearing with the adjustment and the other pivot bearing is coupled to a guide.
  • the drive unit the cutting blade, a knife holder on which the cutting blade is replaceable attachable, and / or wear a knife head.
  • the slicing apparatus may be used to make blank cuts, particularly when slicing food products, with the cutting knife being moved away from the front end of the product to temporarily interrupt the slicing of slices and after taking one or more slices to resume slicing of slices the product is moved back again.
  • 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 can also be a height adjustment or adjustment of the depth of immersion of the cutting blade, in particular with respect to the product or products to be sliced or the product support, more precisely the avoidance of chips during the height or immersion depth adjustment performed blank cuts.
  • 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.
  • 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 in principle does not arrive, as long as it is ensured that no chips are separated from the front end of the product, for example by ensuring that there is a sufficiently large distance between the cutting blade and the front end of the product.
  • a relative movement between the product and a product support on which the product rests is maintained uninterrupted during the blank cutting 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.
  • 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.
  • the cutting blade is mounted on a cutter head, wherein the cutter head is coupled at a first region with the adjusting device and at a second region with a guide and for adjusting the cutting blade whose adjustment by an exciter movement of the adjusting device and by the guide is determined and / or it is provided that the adjustment movement of the cutting blade is performed such that in the additional function position, the distance between the cutting blade and a reference plane which is parallel to a defined by a cutting edge of the cutting blade cutting plane and in particular on the product feed side facing of the cutting blade increases with increasing distance from a plane defined by a product support of the product feed, and / or it is 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, said one pivot bearing with the adjusting and the other Swivel bearing is coupled with a guide.
  • an adjusting device for the cutting blade according to the above-mentioned aspect is used to carry out blank cuts, in particular for producing the distance between the cutting blade and the product To move cutting knife. In this way, if necessary, it can be avoided that a Schnitzel upset occurs during the blank cutting phase.
  • a cutting device is shown as known from the prior art.
  • the cutting device comprises a product feed 11, which comprises a product support 13 and a conveying means 15.
  • On the product support 13 is a product 17, at the rear end of the conveyor 15 engages to promote the product 17 on the product support 13 along a feed direction R at a conveying speed V 0 through a cutting plane S.
  • the conveying speed V 0 may be an average or base value by which the actual value, for example, varies to adapt to a varying cross-sectional shape of the product.
  • the product feeder 11 may include other components for product guidance and support, such as lateral guide rails or Hold-downs, which have in Fig. 1 for the sake of simplicity are not shown.
  • the conveying means 15 is a pair of driven claws which push the product 17 onto the cutting plane S.
  • a cutting blade 19 rotates in a planetary manner, wherein, alternatively, a non-planetary rotating, but merely rotating cutting blade, in particular a sickle blade, can be used.
  • the cutting blade 19 cooperates with a provided at the front end of the product support 13, here the cutting plane S defining cutting edge 21 which acts as a counter knife to separate slices of the conveyed product 17.
  • the separated product slices fall on an in Fig. 1 also not shown transport device, such as a movable table or a belt or belt conveyor, and are removed in portions. For example, they can be fed to a downstream packaging machine.
  • transport device such as a movable table or a belt or belt conveyor
  • a blank cutting phase is provided in the cutting device, in which the cutting knife 19 continues to move, but does not separate any slices from the product 17.
  • a distance D between the cutting blade 19 and the front end 20 of the product 17 is made, as shown Fig. 2 evident.
  • the cutting blade 19 is moved away from the product feeder 11 to carry out blank cuts.
  • the procedure could be reversed, ie the product feed 11 together with the product support 13 and the conveying means 15 are withdrawn from the cutting blade.
  • the retreat which corresponds to the distance D is in Fig. 2 exaggerated for clarity. As stated above, it is usually only a few millimeters.
  • the product feed is stopped or stopped by the conveyor 15 is driven accordingly.
  • the conveying speed V 0 is thus zero during the idle phase.
  • FIG. 3 showing a slicing device according to an embodiment for carrying out a method according to the invention and in which the same reference numerals are used as in FIGS Fig. 1 and 2
  • the product 17 continues to be conveyed by the conveyor 15 during the blank cutting phase.
  • the slicing device according to FIG Fig. 3 the same characteristics as those associated with Fig. 1 and 2 described device of the prior art.
  • the promotion during the idle phase is carried out with a free-cutting speed V L , which is reduced compared to the original conveying speed V 0 .
  • V L free-cutting speed
  • the value of the blank-cut velocity V L is selected such that during the blank-cut phase the product 17 is conveyed by a delivery M which corresponds to the desired thickness of the product slice to be first separated after the blank cut phase.
  • the product slice thickness then remains constant, although a steady product feed takes place, so that thus exerted by the Leer bainphase no negative impact on the product slice thickness becomes. This means that the smaller the number of idle cuts in the blank-cut phase, or the greater the distance D, the lower the idle-speed V L is selected.
  • the backward movement of the cutting blade 19 to terminate the blank cutting 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.
  • Fig. 4 shows in a schematic side view of a known from the prior art high-performance slicer, which serves to sliced food products 127, such as meat, sausage, ham or cheese, in slices.
  • the product 127 rests on a product support 137 and is moved by means of a product feed 113 along a product feed direction F1 in the direction of a cutting plane S1.
  • the product feed direction F1 is perpendicular to the cutting plane S1.
  • 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 113 are in Fig.
  • the cutting plane S 1 is always defined by the cutting edge of the cutting blade 111, regardless of the operating state of the cutting blade 111.
  • the cutting blade 111 cooperates with a designated as a counter knife cutting edge 131 which forms the front end of the product support 137.
  • 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 111 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 111 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 about the blade axis and does not rotate planetary, but only around the blade axis A1 rotates.
  • other types of knives may also be provided.
  • the drive for the cutting blade 111 is in Fig. 4 not shown.
  • an adjusting device which is adapted to move the cutting blade 111.
  • the cutting blade 111 can be mounted displaceably parallel to the axis of rotation A1.
  • the separated product slices 133 portions 135, which in Fig. 4 are shown as a disk stack.
  • this portion 135 is transported away in a direction T1. So that there is sufficient time for the removal of the finished slice portions 135, the above-mentioned empty cuts are carried out until the beginning of the formation of the next portion 135, on the one hand the product feed (here the product holder 125) also referred to as product feed being continued or stopped and, on the other hand, the Cutting knife 111 by means of said adjusting in the in Fig. 4 dashed position shown is moved.
  • Fig. 5a schematically shows a slicer for performing a method according to the invention in a side view.
  • the product feeder 113 is shown in the position in which the product 127 is cut open.
  • the product feeder 113 can be pivoted into an at least approximately horizontal position. In the illustrated cutting position, however, the product feed 113 and thus the product feed direction F1 is inclined relative to the horizontal H1, namely by an angle ⁇ 1, which is for example about 40 °.
  • the product feed direction F1 and thus the plane E1 defined by the product support 137 are parallel to the knife axis A1 (which, however, is not mandatory, as already mentioned above), here the angle of inclination ⁇ 1 between the horizontal H1 and the plane E1 Product edition 137 drawn.
  • the inventive method is also in connection can be used with such slicers, in which a product supplied in a horizontal or vertical direction is cut open.
  • the product support 137 represents an inclined plane for the product 127.
  • the advancing movement of the product 127 is thereby supported by gravity.
  • the front end product is not - as it would be the case with a horizontal product - vertically oriented, so that due to the inclination of the front product end, the filing of the separated product slices 133 - here on a removal conveyor 145 - improved or even a useful product storage is enabled.
  • Fig. 5b is shown by solid lines, the cutting position of the blade 111, in which the cutting plane S1 and a reference plane defined by the cutting edge 131 coincide, which is a simplification insofar as in practice between the cutting blade 111 and the cutting edge 131 a smaller, most adjustable Cutting gap is present, which is not discussed here in detail will need.
  • Dashed lines according to one embodiment an additional function position is indicated, in which the cutting blade 111 - here as part of the cutter head 119 - has experienced an adjustment starting from the cutting position, which - based on the drawing view - takes place in the clockwise pivoting or tilting movement.
  • the pivoting or tilting movement of the cutting blade is counterclockwise.
  • the invention thus allows - depending on the specific embodiment - adjusting movements of the cutting blade or a cutting blade comprising the cutter head both in the one and in the opposite pivoting or tilting.
  • the blade head 119 is only schematically indicated here as a whole is adjusted. This will be described below in connection with the Fig. 6a and 6b or the Fig. 7a and 7b discussed in more detail.
  • the adjustment movement of the knife 111 or of the knife head 119 ultimately takes place relative to a stationary frame or frame 123 of the slicer. This will be discussed in more detail below in connection with the mentioned figures.
  • the Fig. 6a and 6b show a possible concrete embodiment for carrying out a method according to the invention.
  • the knife head 119 is a sickle cutter head, ie the cutting knife 111 is a sickle knife, which performs a self-rotating movement about a knife axis A1 and does not additionally rotate planetary.
  • the knife 111 is replaceably mounted on a here designated as blade holder 117, which is also referred to as a blade holder, rotor or blade shaft.
  • the cutter head 119 which can be adjusted as a whole in the manner described in more detail below, further comprises a drive shaft 165, which is rotatably mounted in a front pivot bearing 121 and in a rear pivot bearing 120.
  • the rotary drive of the drive shaft 165 by means of a rotary drive forming motor 139, which cooperates via a drive belt 143 with a pulley 171 which is rotatably mounted on the drive shaft 165.
  • the motor 139 is fixedly connected to a wall 147, which is part of a cutting head housing 141, which with respect to the adjustment movement of the cutter head 119 to a stationary frame or frame 123 (see. Fig. 5a and 5b ) is attached.
  • An adjustability of the cutting head housing 141 as a whole in directions which lie in the cutting plane S1 defined by the cutting edge of the knife 111 relative to the product support (of which only the plane E1 defined by it is illustrated here) are furthermore possible for the method according to the invention but otherwise not important.
  • a cover or hood which is connected to the cutting head housing 141 and at least partially surrounds the cutting blade 111 during the cutting operation, is also provided, but not shown here.
  • the cutter head 119 is pivotally suspended in the front region by means of a pair of levers 163 forming a guide 161 on the cutting head housing 141.
  • the pivot points 173 of the lever 163 on the cutting head housing 141 are above and behind the articulation points 175 of the lever 163 on Knife head 119. This suspension of the cutter head 119 via the front pivot bearing 121st
  • the cutter head 119 is held by an adjusting 115 such that for adjusting the cutter head 119 and thus the cutting blade 111 relative to Schneidkopfgeliäuse 141, the rotary shaft 120 rotatably supporting the drive shaft 165 by an exciter movement of the adjusting device 115 is deflectable.
  • This energizing movement is produced by virtue of the fact that a rotationally drivable shaft 167 which is stationary with respect to the cutting head housing 141 is non-rotatably connected to an eccentric 169 which can rotate in a corresponding receptacle of the rotary bearing 120.
  • the suspension or mounting of the cutter head 119 is designed in this embodiment such that a rotational movement of the eccentric 169 generated by rotation of the shaft 167 by 90 ° counterclockwise (as in Fig. 6b indicated by the arrow) causes an adjusting movement V1 of the cutter head 119 and thus of the cutting blade 111, which comprises a pivoting movement taking place in a clockwise direction.
  • the pivot bearing 120 - and thus the cutter head 119 in its rear region - moves forward and downward.
  • Fig. 7a and 7b is different from that of the Fig. 6a and 6b in particular by another front pivoting suspension of the cutter head 119 and an opposite direction.
  • the articulation points 173 and 175 of the lever 163 are at least approximately in a plane parallel to the cutting plane S1 of the blade 111 in the in Fig. 7a shown cutting position runs.
  • the suspension and mounting of the cutter head 119 in this embodiment are chosen such that the here taking place in a clockwise rotational movement of the eccentric 169 by 90 ° has the consequence that the rear pivot bearing 120 of the cutter head 119 with respect to the cutting head housing 141 moves forward and upward , As a result, the cutter head 119 and thus the cutting blade 111 is tilted forward. In the blank position according to Fig. 7b thus takes the distance between the cutting blade 111 and the original, in the cutting position according to Fig.
  • the position of the articulation points 173 and 175 alone is not determinative of the "direction of rotation" of the tilting movement of the cutting blade 111, but only one parameter of several parameters that determine the overall direction and extent of the tilting movement of the cutting blade 111.
  • this adjustment can be designed such that the cutting blade 11 is pivoted or tilted at least approximately to a virtual point, which is in the plane defined by the product support level E1 or below.
  • the cutter head 119 including the adjusting device 115, may alternatively be designed in such a way that the cutter head 119 together with the adjusting device 115 lies completely within the cutter head housing 141.
  • a measure for this purpose may be, for example, to move the rotary drive motor 139 in adjusting the adjustment of the blade head 119 manner when adjusting the blade head 119 so that at least to some extent, the effects of the cutter head adjustment on the drive belt 143 are compensated.
  • the effect of the belt elongation or deflection can also by a suitable orientation of the cutter head, which of those in the Fig. 6a and 6b or in the Fig. 7a and 7b deviates, at least largely eliminated.-.-.-.

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

Claims (8)

  1. Procédé pour découper des produits alimentaires (17 ; 127), en particulier au moyen d'une trancheuse à haute performance,
    dans lequel au moyen d'une amenée de produits (11 ; 113) on convoie au moins un produit (17 ; 127) le long d'une direction d'avance (R ; F1) à travers un plan de coupe (S ; SI) dans lequel, en vue de séparer des tranches depuis le produit (17 ; 127) au moins un couteau de coupe (19; 111) se déplace, en particulier en rotation et/ou de manière orbitale, et
    pendant une phase de coupe à vide dans laquelle le couteau de coupe (19 ; 111) poursuit son déplacement, mais ne sépare ici aucune tranche depuis le produit (17 ; 127), on établit une distance (D) entre le couteau de coupe (19 ; 111) et le produit (17 ; 127),
    caractérisé en ce que
    pendant la phase de coupe à vide le produit est encore convoyé le long de la direction d'avance (R ; F1).
  2. Procédé selon la revendication 1,
    caractérisé en ce que pendant la phase de coupe à vide, un mouvement relatif entre le produit (17 ; 127) et un support de produit (13 ; 137) sur lequel repose le produit (17 ; 127) est maintenu de manière ininterrompue.
  3. Procédé selon la revendication 1 ou 2,
    caractérisé en ce que pour la phase de coupe à vide, afin d'établir la distance (D), on déplace le couteau de coupe (19 ; 111), en particulier une tête de coupe incluant le couteau de coupe (19 ; 111) est déplaçable dans son ensemble pour la phase de coupe à vide afin d'établir la distance (D), par rapport au produit (17 ; 127), et/ou on déplace le produit, en particulier au moins une partie de l'amenée de produits (11 ; 113) par rapport au couteau de coupe (19 ; 111).
  4. Procédé selon l'une au moins des revendications précédentes,
    caractérisé en ce que, pour la phase de coupe à vide en vue d'établir la distance (D), on déplace un support de produit (13 ; 137), sur lequel repose de produit (17 ; 127), par rapport au couteau de coupe (19 ; 111), et pendant la phase de coupe à vide, on déplace le produit (17 ; 127) par rapport au support de produit (13 ; 137).
  5. Procédé selon l'une au moins des revendications précédentes,
    caractérisé en ce que, pendant la phase de coupe à vide, le produit (17 ; 127) est convoyé avec une vitesse de coupe à vide réduite (VL) le long de la direction d'avance (R ; F1), et en particulier la vitesse de coupe à vide (VL) est choisie en fonction de la durée de la phase de coupe à vide et/ou de la taille de la distance (D) entre le couteau de coupe (19 ; 111) et le produit (17 ; 127).
  6. Procédé selon la revendication 5,
    caractérisé en ce que la vitesse de coupe à vide (VL) est choisie de telle manière que pendant la phase de coupe à vide le produit (17 ; 127) est convoyé sur un trajet (M) qui correspond à l'épaisseur souhaitée de la tranche à séparer en premier après la phase de coupe à vide.
  7. Procédé selon l'une au moins des revendications précédentes,
    caractérisé en ce qu'il est prévu un système de réglage (115) pour le couteau de coupe (19 ; 111), au moyen duquel le couteau de coupe (19 ; 111) est déplaçable, en particulier pour exécuter des coupes à vide, entre une position de coupe et une position fonctionnelle supplémentaire,
    dans lequel le couteau de coupe (19 ; 111) est monté sur une tête de couteau (119), dans lequel la tête de couteau (119) est couplée à une première zone avec le système de réglage (115) et à une seconde zone avec un guidage (161), et pour régler le couteau de coupe (19 ; 111), son mouvement de déplacement est fixé par un mouvement d'excitation du système de réglage (115) et par le guidage (161) ;
    et/ou
    dans lequel le mouvement de réglage du couteau de coupe (19 ; 111) est exécuté de telle façon que, dans la position fonctionnelle supplémentaire, la distance entre le couteau de coupe (19 ; 111) et un plan de référence, qui s'étend parallèlement à un plan de coupe (S ; S1) défini par un tranchant du couteau de coupe (19 ; 111), et qui est en particulier disposé sur le côté du couteau de coupe tourné vers l'amenée de produits, augmente lorsque l'éloignement depuis un plan (E1) défini par un support de produit (13 ; 137) de l'amenée de produits (11 ; 113) augmente ;
    et/ou
    dans lequel pour régler le couteau de coupe (19 ; 111) on règle une unité d'entraînement pour le couteau de coupe (19 ; 111), qui inclut un arbre d'entraînement (165) et au moins deux paliers rotatifs (120, 121) pour l'arbre d'entraînement (165), écartés en direction de l'axe longitudinal de l'arbre d'entraînement (165), dans lequel l'un des paliers rotatifs (120) est couplé au système de réglage (115) et l'autre palier rotatif (121) est couplé à un guidage (161).
  8. Procédé selon la revendication 7,
    caractérisé en ce que pour le réglage du couteau de coupe (19 ; 111) on exécute un mouvement pivotant ou basculant du couteau de coupe (19 ; 111).
EP10015739.5A 2009-12-21 2010-12-16 procédé pour découper des produits alimentaires Active EP2335888B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
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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EP2335888A1 EP2335888A1 (fr) 2011-06-22
EP2335888B1 true EP2335888B1 (fr) 2015-09-23

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EP10015739.5A Active EP2335888B1 (fr) 2009-12-21 2010-12-16 procédé pour découper des produits alimentaires

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Publication number Publication date
EP2335888A1 (fr) 2011-06-22
EP2357064B1 (fr) 2015-09-23
ES2549909T3 (es) 2015-11-03
US20110185865A1 (en) 2011-08-04
US20110179922A1 (en) 2011-07-28
EP2357064A2 (fr) 2011-08-17
ES2556769T3 (es) 2016-01-20
EP2357064A3 (fr) 2012-01-11

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