EP0736361A2 - Machine industrielle améliorée pour la découpe en tranches, en particulier pour la découpe de produits alimentaires - Google Patents

Machine industrielle améliorée pour la découpe en tranches, en particulier pour la découpe de produits alimentaires Download PDF

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Publication number
EP0736361A2
EP0736361A2 EP96104880A EP96104880A EP0736361A2 EP 0736361 A2 EP0736361 A2 EP 0736361A2 EP 96104880 A EP96104880 A EP 96104880A EP 96104880 A EP96104880 A EP 96104880A EP 0736361 A2 EP0736361 A2 EP 0736361A2
Authority
EP
European Patent Office
Prior art keywords
belt
slices
slicer according
slice
group
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.)
Withdrawn
Application number
EP96104880A
Other languages
German (de)
English (en)
Other versions
EP0736361A3 (fr
Inventor
Francesco Spatolisano
Mario Delsanto
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.)
Hitech Systems Srl
Original Assignee
Hitech Systems Srl
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitech Systems Srl filed Critical Hitech Systems Srl
Publication of EP0736361A2 publication Critical patent/EP0736361A2/fr
Publication of EP0736361A3 publication Critical patent/EP0736361A3/fr
Withdrawn legal-status Critical Current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
    • B26D7/27—Means for performing other operations combined with cutting
    • B26D7/32—Means for performing other operations combined with cutting for conveying or stacking cut product
    • B26D7/325—Means for performing other operations combined with cutting for conveying or stacking cut product stacking the cut product individually separated by separator elements
    • 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
    • B26D1/16—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 mounted on a movable arm or the like
    • 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
    • B26D7/27—Means for performing other operations combined with 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
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/27—Means for performing other operations combined with cutting
    • B26D7/32—Means for performing other operations combined with cutting for conveying or stacking cut product

Definitions

  • the present invention relates to an improved industrial slicer, particularly for food products, and more precisely to a slicer provided with a rotating blade which moves along an orbital pass path, biting into the product to be sliced, which is supported by a carriage that advances at right angles to the blade in steps the length whereof corresponds to the thickness of each slice of product.
  • the rotating blade is supported eccentrically by a support formed by a rotating disk, a so-called flywheel, and revolves around the axis of the disk, moving along said pass path.
  • the cutting speed which corresponds to the angular velocity of the blade about its own axis
  • the pass speed which corresponds to the angular velocity of the flywheel support about its own axis.
  • the rotation rate of the blade is correlated to that of the flywheel according to a fixed ratio that is provided by means of a mechanical transmission interposed between said flywheel and said blade; the blade is actuated by means of said transmission by the flywheel which, by virtue of the fixed arrangement of its rotation axis, is capable of receiving motion from a motor lying outside the flywheel-blade system, for example by means of a transmission with a toothed belt or the like.
  • the constant ratio between the cutting speed and the pass speed is however a severe drawback, since this ratio, too, depends significantly on the characteristics and temperature of the product to be sliced.
  • a correct slicing process requires the possibility to vary, independently and within rather wide limits, the cutting and pass speeds, adapting them to the different characteristics and to the temperature of the products being treated, as well as to the thickness of the slices to be produced.
  • an excessively low ratio between the cutting and pass speeds generates the so-called "shear" effect, making it difficult to produce thin slices, whereas an excessively high ratio entails the risk of singeing the product being treated, due to the excessive sliding of the cutting blade on the product itself.
  • the values of said ratio are between 1:4 and 1:12. The lowest values are used to treat products stored at low temperature, the higher values are used for products at a higher temperature, for example ambient temperature.
  • An important object of the present invention is to provide an industrial slicer of the specified type that is adapted to allow, in a simple and economically advantageous manner, the independent variation of the cutting and pass speeds, allowing to program said speeds individually within wide limits to optimize the value of the ratio between said speeds, which is required by the slicing process for each individual product, correspondingly optimizing said process both in terms of waste reduction and in terms of yield of product sliced in the unit time.
  • interleaving devices are also provided, i.e., means that are adapted to insert sheets of packaging material between one slice and the next to prevent the slices from joining again once they have been stacked and packaged.
  • Another important object of the present invention is to provide a slicer that obviates this drawback with improved interleaving means that are capable of ensuring the correct insertion of the separator sheet between one slice and the next as well as perfect synchronization in feeding said sheet with respect to the rate at which the slices are released by the cutting system, and that are also capable of suspending, if required, the interposition of the separator sheet under the first slice of each stack.
  • Another object of the invention is also to improve the so-called portion-making system of the machine, i.e., the system that receives the cut slices and groups them in portions having a given composition and weight, partially mutually overlapping the slices if required.
  • This system is currently constituted by a belt having two speeds, one for the partial overlap of the slices during the cutting process and one for the removal of the formed group.
  • the groups of slices can be produced continuously, i.e., without temporarily suspending the cutting of the slices, or with cutting pauses between one group and the next. Both methods have considerable drawbacks.
  • the length of the belt is fixed and proportional to the dimension (length) of the slice portion, which therefore cannot be changed except by replacing said belt.
  • the length of the portions can be changed, but significant cutting hold downtimes are introduced which reduce the efficiency and yield of the machine.
  • Another important object of the present invention is to eliminate these drawbacks by improving the portion-making system so as to produce without cutting pauses but having, at the same time, extreme flexibility in the composition of the groups or stacks of slices.
  • the slicing process is optimized by fitting the machine with two independent motors, respectively for performing the pass and for performing the cut, one motor being connected to the flywheel support with a single transmission, the other motor being connected by means of a double transmission to an idler pulley, with overlapping portions, which is rotatably mounted on the shaft of the flywheel, and from said idler pulley to the shaft of the cutting blade.
  • the two motors are powered individually and their speeds can be changed independently by means of respective control microprocessors that are interconnected in a master (flywheel) and slave (blade) relationship.
  • the machine according to the invention is provided with improved interleaving means, which comprise two sheet insertion guides that protrude into the slice release region to support individual sheets at the falling path of said slices. In this manner, each slice, by falling, engages the underlying sheet, entraining it into contact with the last slice of the stack being formed.
  • the guides are capable of assuming, in step with the falling rate of the slices, a closer or closed position that allows to support the sheet and a spaced or open position that releases said sheet, allowing the falling slice to entrain it.
  • the portion-making system is composed of two belts that are arranged in succession one after the other.
  • the first belt which acts as a true portion-making device, receives and staggers the slices.
  • the second belt performs two separate functions, namely that of being an extension of the first belt, when said first belt is saturated, and that of removing the formed group of slices while the first belt resumes its portion-making function.
  • the two belts are controlled by respective microprocessors that are separate but interconnected by an appropriate logic unit.
  • the reference numeral 10 generally designates the slicer, which comprises a slice cutting section 11 and a section 12 for collecting and packaging the cut slices.
  • the section 11 comprises a cabinet 13 and an inclined plate 14 for supporting the products to be sliced (not shown), which is mounted on pivots 14a that allow to vary the inclination of said plate in relation to the cabinet 13.
  • Conventional means, not shown, are associated with the plate 14 and comprise a carriage for retaining the product to be sliced, which advances in steps the length whereof is equal to the preset thickness of the slices.
  • the plate 14 supports the cutting unit, generally designated by the reference numeral 15.
  • the section 12 for collecting the slices produced by the cutting unit 15 comprises a portion-making system 16-17, downstream of which there are provided a balance belt 17' and interleaving means, generally designated by the reference numeral 18, which are adapted to insert separator sheets between the slices of each stacking group.
  • the cutting unit 15 (figures 2 and 3) comprises a circular blade 19 that rotates about its own axis "a" with an angular velocity ⁇ t, known as cutting speed.
  • the blade 19 is supported eccentrically by a flywheel support 20 by means of a pivot 21 that is mounted so as to be freely rotatable, with the interposition of bearings 22, on said flywheel support 20.
  • said flywheel support is mounted so as to be freely rotatable, with the interposition of bearings 23, on a fixed pivot 24 and rotates, about the axis "b" of the pivot, with an angular velocity ⁇ p of its own, known as pass speed.
  • the blade orbits around the axis "b" of the pivot 24, performing in a cyclic manner a cutting pass every time the flywheel support 20 turns through 360 o .
  • the flywheel support 20 and the blade 19 are driven by respective independent pass and cutting motors 25-26 that are supported by the housing 27 of the cutting unit 15 and are individually powered and adjustable. More specifically, the motor 25 is connected to the flywheel 20 with a single transmission and the motor 26 is connected to the blade 29 with a double transmission that allows the flywheel to rotate independently of the blade and vice versa.
  • the single transmission interposed between the motor 25 and the flywheel 20 comprises a toothed belt 28 that meshes with corresponding toothed pulleys 29-29' that are rigidly coupled to the motor shaft and to a hub 20' of the flywheel 20, respectively.
  • the double transmission interposed between the motor 26 and the blade 19 comprises two toothed belts 30-31 and an idler pulley 32 with overlapping portions 32'-32'', which is mounted so as to be freely rotatable, with the interposition of bearings 33, on the fixed pivot 24.
  • the belt 30 transmits motion from a pulley 34 of the motor 26 to the first portion 32' of the idler pulley 32, and the belt 31 transmits the motion of the second section 32'' of the idler pulley to a pulley 35 that is keyed to the pivot 21 of the blade 19.
  • the overall transmission ratio of said double transmission can be chosen within a wide range of values and is not limitative for the present invention; in the illustrated example it is chosen slightly lower than one.
  • the cutting speed ⁇ t and the pass speed ⁇ p can be changed individually by acting on the respective motors 25-26, for example by means of an electronic control that allows to program various ratios between said speeds, which are chosen in relation to the characteristics and temperature of the product, to the thickness of the slices to be produced, and/or to other parameters for optimizing the cutting process.
  • said means include two fork-like guides 40 that protrude into the slice release regions to support, at the falling path of said slices, individual separator sheets FS that are cut by means of a blade (not shown) from a continuous ribbon N that is wound on a reel B (figure 1).
  • the guides 40 can assume, in step with the falling rate of the slices, a nearer closed position, shown in solid lines in figure 4, that allows to support the sheet FS, and a spaced open position, shown in dashed lines in said figure 4, which releases said sheet, allowing its entrainment on the part of the falling slice; each sheet is thus inserted between one slice and the next of the group being formed.
  • each guide 40 is supported by a corresponding articulated quadrilateral 41 that comprises a fixed supporting base 42 and two arms 43-43' in which one end is articulated to the base 42 and the other end is articulated to the corresponding guide 40.
  • the arm 43 of each pair is provided with an L-shaped wing 43a, to which the end of a linkage 44 is articulated, the other end of said linkage being articulated to a rocker 45.
  • Said rocker has, at the articulation axis of the linkage, a tappet roller 46, with which a movement cam 47 cooperates; said cam is supported by a support 48 and is moved, in step with the flywheel support 20, by a transmission comprising a pulley 49 and a toothed belt 50.
  • a return spring 51 acts on the rocker 45 to keep the roller 46 in active contact engagement with the cam 47.
  • portion-making system is composed of two separate conveyor belts 16-17 having respective fixed and preset lengths L 1 -L 2 .
  • Each belt is driven by a corresponding motor (not shown) that is controlled by a respective microprocessor (not shown), and the two microprocessors are interconnected by an appropriate logic unit, as will become apparent hereinafter.
  • the first belt 16 acts as an actual portion-maker, receiving and staggering the slices FE that arrive from the cutting section 15 so that said slices partially overlap one another; the staggering percentage, i.e., the slice portion that is left free by the subsequent overlapping slice, is designated by L S in the figure and the diameter of the slices is designated by L P .
  • the two values L S and L P and the number of slices, nf, that compose the group G of slices constitute the variable parameters used in the logic portion-making procedure.
  • the second belt 17 performs two separate functions, namely constituting an extension of the first belt 16 when said first belt becomes saturated, and removing the formed group of slices, transferring it to the belt-equipped balance 17', while the first belt 16 resumes its portion-making function.
  • Both belts 16-17 have variable speeds.
  • the belt 16 does not move when receiving the fall of each individual slice FE, thus improving its deposition and settling.
  • the belt 16 moves forwards to reposition itself by an extent that is equal to the set staggering percentage L S .
  • This repositioning advancement is correlated to the rotation rate of the flywheel support 20 and ends just before the next slice FE' falls.
  • the microprocessor that controls the motor of the flywheel support 20 is operatively connected to both of the microprocessors that control the motors of the belts 16-17 in a master-slave relationship.
  • the microprocessor associated with the belt 16 checks whether the saturation configuration of said belt has been reached by adding the diameter L P of the slice to the staggering percentage L S multiplied by the number of slices that have been deposited, less one, and comparing the result with the length L of said belt.
  • the saturation time T 1 is also stored by the microprocessor for the purpose that will become apparent hereinafter.
  • a belt 16 that is 150 mm long is saturated by the overlapping of six slices FE having a diameter of 100 mm and a staggering percentage equal to 10 mm (figure 6a).
  • the control microprocessor of said belt sends a first interpolation criterion to the microprocessor that controls the belt 17; by virtue of this criterion, this last belt is moved in steps that have a length L S , perfectly in step with the belt 16, thus forming a true extension thereof.
  • both belts 16-17 move in step at such a speed as to cover a path, termed transfer path, that is equal to the length L 1 of the belt 16 in the time that corresponds to a full turn of the flywheel support 20, so that in this time the group of slices that has been formed is fully transferred onto the belt 17.
  • transfer path a path that is equal to the length L 1 of the belt 16 in the time that corresponds to a full turn of the flywheel support 20, so that in this time the group of slices that has been formed is fully transferred onto the belt 17.
  • This is achieved by means of a second interpolation criterion between the two belt control microprocessors, wherein the data item related to the path to be covered is changed, since the new data item is equal to L 1 instead of L S .
  • the belt 16 disengages from the synchronization with the belt 17 to accommodate the first slice of the next group and repeat the described portion-making cycle.
  • the belt 17 is synchronized with the speed V 3 of the subsequent balance belt 17' (figure 6c) and maintains this speed for a time T 3 , covering a path T 3 V 3 that is equal to the total length of the group G and thus removing said group.
  • the speeds V 2 and V 3 are chosen so that the sum of the times T 2 and T 3 required for completely removing the group G from the belt 17 is less than the saturation time T 1 of the belt 16.

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  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacture Of Wood Veneers (AREA)
  • Details Of Cutting Devices (AREA)
EP96104880A 1995-04-04 1996-03-27 Machine industrielle améliorée pour la découpe en tranches, en particulier pour la découpe de produits alimentaires Withdrawn EP0736361A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITTO950254 1995-04-04
IT95TO000254A IT1280839B1 (it) 1995-04-04 1995-04-04 Macchina affettatrice industriale perfezionata, particolarmente per prodotti alimentari.

Publications (2)

Publication Number Publication Date
EP0736361A2 true EP0736361A2 (fr) 1996-10-09
EP0736361A3 EP0736361A3 (fr) 1997-05-07

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EP96104880A Withdrawn EP0736361A3 (fr) 1995-04-04 1996-03-27 Machine industrielle améliorée pour la découpe en tranches, en particulier pour la découpe de produits alimentaires

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EP (1) EP0736361A3 (fr)
IT (1) IT1280839B1 (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0854086A2 (fr) * 1997-01-16 1998-07-22 ALPENLAND MASCHINENBAU HAIN & CO. KG Procédé et appareilpour inserer des feuilles de séparation entre des tranches de produits alimentaires
EP0955137A2 (fr) * 1998-05-06 1999-11-10 Reifenhäuser, Uwe, Dipl.-Ing. Machine à débiter en tranches
WO2004004989A2 (fr) * 2002-07-09 2004-01-15 Fabio Perini S.P.A. Machine de coupe permettant de couper des produits allonges
US20150053057A1 (en) * 2013-08-22 2015-02-26 Weber Maschinenbau Gmbh Breidenbach Apparatus for slicing food products and method of providing intermediate sheets
EP2896490A1 (fr) * 2014-01-16 2015-07-22 Georg Hartmann Maschinenbau GmbH Entraînement de lame circulaire, en particulier pour des trancheuses à pain
DE102017105919A1 (de) 2017-03-20 2018-09-20 Weber Maschinenbau Gmbh Breidenbach Verarbeitung von Lebensmittelprodukten
DE102018005934A1 (de) * 2018-07-30 2020-01-30 Siller Holding GmbH Motorischer Antrieb für eine Schneidmaschine
EP3639992A1 (fr) 2018-10-17 2020-04-22 Alexander Homsky Machine de tranchage pour des aliments
WO2023148612A1 (fr) * 2022-02-02 2023-08-10 O.M.T. S.R.L. Appareil et procédé d'entraînement orbital d'une lame pour couper des rouleaux

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2032801A1 (fr) * 1970-07-01 1972-04-13
US3842698A (en) * 1973-09-11 1974-10-22 C Fitch Slicing machine for slicing a food product or the like
US4041813A (en) * 1976-02-17 1977-08-16 Paper Converting Machine Company Method and apparatus for transverse cutting
DE8237311U1 (de) * 1982-10-22 1986-08-28 Natec Reich, Summer GmbH & Co KG, 8999 Heimenkirch Papiervorschubeinrichtung für eine Maschine zum Schneiden von Schneidgutriegeln

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2032801A1 (fr) * 1970-07-01 1972-04-13
US3842698A (en) * 1973-09-11 1974-10-22 C Fitch Slicing machine for slicing a food product or the like
US4041813A (en) * 1976-02-17 1977-08-16 Paper Converting Machine Company Method and apparatus for transverse cutting
DE8237311U1 (de) * 1982-10-22 1986-08-28 Natec Reich, Summer GmbH & Co KG, 8999 Heimenkirch Papiervorschubeinrichtung für eine Maschine zum Schneiden von Schneidgutriegeln

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0854086A2 (fr) * 1997-01-16 1998-07-22 ALPENLAND MASCHINENBAU HAIN & CO. KG Procédé et appareilpour inserer des feuilles de séparation entre des tranches de produits alimentaires
EP0854086A3 (fr) * 1997-01-16 1999-04-14 ALPENLAND MASCHINENBAU HAIN & CO. KG Procédé et appareilpour inserer des feuilles de séparation entre des tranches de produits alimentaires
EP0955137A2 (fr) * 1998-05-06 1999-11-10 Reifenhäuser, Uwe, Dipl.-Ing. Machine à débiter en tranches
EP0955137A3 (fr) * 1998-05-06 2002-05-02 Reifenhäuser, Uwe, Dipl.-Ing. Machine à débiter en tranches
WO2004004989A2 (fr) * 2002-07-09 2004-01-15 Fabio Perini S.P.A. Machine de coupe permettant de couper des produits allonges
WO2004004989A3 (fr) * 2002-07-09 2004-04-15 Perini Fabio Spa Machine de coupe permettant de couper des produits allonges
US9981400B2 (en) * 2013-08-22 2018-05-29 Weber Maschinenbau Gmbh Breidenbach Apparatus for slicing food products and method of providing intermediate sheets
US20150053057A1 (en) * 2013-08-22 2015-02-26 Weber Maschinenbau Gmbh Breidenbach Apparatus for slicing food products and method of providing intermediate sheets
EP2896490A1 (fr) * 2014-01-16 2015-07-22 Georg Hartmann Maschinenbau GmbH Entraînement de lame circulaire, en particulier pour des trancheuses à pain
RU2677826C2 (ru) * 2014-01-16 2019-01-21 Гхд Георг Хартманн Машиненбау Гмбх Привод дискового ножа, в частности, для хлеборезательных машин
DE102017105919A1 (de) 2017-03-20 2018-09-20 Weber Maschinenbau Gmbh Breidenbach Verarbeitung von Lebensmittelprodukten
DE102018005934A1 (de) * 2018-07-30 2020-01-30 Siller Holding GmbH Motorischer Antrieb für eine Schneidmaschine
EP3603908A1 (fr) * 2018-07-30 2020-02-05 Siller Holding GmbH Entraînement motorisé pour une machine à découper
EP3639992A1 (fr) 2018-10-17 2020-04-22 Alexander Homsky Machine de tranchage pour des aliments
US11065777B2 (en) 2018-10-17 2021-07-20 Alexander Homsky Slicing machine
WO2023148612A1 (fr) * 2022-02-02 2023-08-10 O.M.T. S.R.L. Appareil et procédé d'entraînement orbital d'une lame pour couper des rouleaux

Also Published As

Publication number Publication date
IT1280839B1 (it) 1998-02-11
ITTO950254A1 (it) 1996-10-04
ITTO950254A0 (it) 1995-04-04
EP0736361A3 (fr) 1997-05-07

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