EP1704971B1 - Méthode et dispositif de coupe pour produits alimentaires ayant une forme allongée - Google Patents

Méthode et dispositif de coupe pour produits alimentaires ayant une forme allongée Download PDF

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Publication number
EP1704971B1
EP1704971B1 EP06003116A EP06003116A EP1704971B1 EP 1704971 B1 EP1704971 B1 EP 1704971B1 EP 06003116 A EP06003116 A EP 06003116A EP 06003116 A EP06003116 A EP 06003116A EP 1704971 B1 EP1704971 B1 EP 1704971B1
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EP
European Patent Office
Prior art keywords
cross
elongated strand
section
pressing element
slicing
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
EP06003116A
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German (de)
English (en)
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EP1704971A1 (fr
Inventor
Uwe Dipl.-Ing. Reifenhäuser
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Individual
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Individual
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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
    • B26D7/30—Means for performing other operations combined with cutting for weighing cut product
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D5/00—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D5/20—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting with interrelated action between the cutting member and work feed
    • B26D5/30—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting with interrelated action between the cutting member and work feed having the cutting member controlled by scanning a record carrier
    • B26D5/34—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting with interrelated action between the cutting member and work feed having the cutting member controlled by scanning a record carrier scanning being effected by a photosensitive device
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D2210/00—Machines or methods used for cutting special materials
    • B26D2210/02—Machines or methods used for cutting special materials for cutting food products, e.g. food slicers
    • 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
    • B26D7/01—Means for holding or positioning work
    • B26D7/02—Means for holding or positioning work with clamping means
    • 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
    • B26D7/06—Arrangements for feeding or delivering work of other than sheet, web, or filamentary form
    • B26D7/0625—Arrangements for feeding or delivering work of other than sheet, web, or filamentary form by endless conveyors, e.g. belts
    • 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
    • B26D7/06—Arrangements for feeding or delivering work of other than sheet, web, or filamentary form
    • B26D7/0683—Arrangements for feeding or delivering work of other than sheet, web, or filamentary form specially adapted for elongated articles

Definitions

  • the invention relates to a method for cutting a strand-shaped food at least in slices, wherein a Gutstrang of the food is inserted into a loading area of a cutting machine, the Gutstrang is then advanced by means of a feed device to a cutting device, the Gutstrang before the cutting device by a scanning plane of a scanning device is moved, with which the respective located in the scan plane cross section of the Gutstrangs is determined, and the Gutstrang is then cut by means of the cutting device at least in slices, wherein the Gutstrang is pressed by a hold-down device in the direction of a footprint of the loading area.
  • the invention relates to a machine for cutting string-shaped foods, with which the aforementioned method is executable.
  • the document D1 discloses a slicing machine for slicing ham in which slices of almost equal slice thickness are to be obtained.
  • the machine is equipped with means for measuring the weight and length of the material strand and may additionally be equipped with means for measuring the width of the strand of material and for detecting the surface of its upper surface.
  • the cutting machine is equipped with a hold-down, which stabilizes the Gutstrang on its side facing the cutter, with pressure in the vertical direction can be exercised on the Gutstrang.
  • the hold-down according to D1 is not controlled in such a way that it adapts to the surface of the material strand as a function of the data determined by means of the scanning device.
  • a cutting machine with a scanning device in the form of a rotatably mounted and a central opening for the passage of the Gutstrangs having scan ring is from the EP 1 258 327 A2 known.
  • the cutting method of the type described above can be performed.
  • the non-described in the document mentioned, but in practice existing hold-down is located between the scanning device and the cutter and is set before the start of the cutting process according to the cross-sectional dimensions of the Gutstrangs to be cut.
  • Also known in this connection is the use of adjustable but spring-loaded hold-down devices, which should always provide the same for a sufficient contact pressure of the hold-down device when varying in the longitudinal direction of the Gutstrangs cross-sections.
  • Such methods and machines with scanning devices are used in particular in so-called "weight-accurate cutting".
  • weight-accurate cutting In this case, despite a changing cross section, in particular the current height, of the Gutstrangs to be cut, the weight of just cut slices before the cutting process as accurately as possible be determined using the cross-sectional determination of the Gutstrangs.
  • the knowledge of the weight of a slice yet to be cut is important because in this way with very tight tolerances the generation of a self-service packaging unit can be produced with slices of food with a predetermined, always the same weight.
  • the weight control of a stack of discs which was produced by means of such a process for weight-accurate cutting and then forms a packaging unit for self-service retail, is then carried out with the help of a cutting machine downstream weighing device.
  • the scanning device for measuring the respective cross-section of the material strand of the food usually has a rotatably mounted in a housing wall scan ring, which defines a passage cross section for the Gutstrang.
  • a housing wall scan ring which defines a passage cross section for the Gutstrang.
  • two scanning elements arranged offset by 180 ° from one another are arranged on the scanning ring and operate according to a laser-optical principle.
  • the laser beam emitted from the scanning element onto the surface of the strand of material and reflected therefrom is detected differently depending on the distance of the surface from the transmitting or receiving plane of the scanning element, so that an expression follows rotation of the scanning ring by an angle of at least 180 ° about the cross-sectional shape, d. H. the dependent of the angular position removal of the Gutstrangsober Structure of the scanning elements is possible.
  • the fixed-setting hold-down devices used in the prior art ie, a fixed distance from the contact surface in the loading area during the slicing of a material strand, have the disadvantage that, in the case of cross-sectional variation of the material strand over its length, in particular in the case of changes in the height of the material strand relative to the contact surface , Fluctuations in the effectiveness, ie the holding force of the hold-down device occur. Even with the sometimes used hold-down devices with spring-mounted contact pressure element is an optimal mode of operation not sure. While the adjustment of the preload is oriented to a mean expected Gutstrangs, the holding force is often too low with decreasing cross-sectional height of the Gutstrangs to ensure a secure fixation.
  • the invention has for its object to provide a method and a machine for cutting a rope-shaped food, in which the force exerted by the pressing of the hold-down device on the Gutstrang force can always be maintained at a constant optimum value.
  • this object is achieved in that the distance of a contact with the surface of the Gutstrangs contact pressure element is set by the footprint of the loading area in dependence on the determined by the scanning device cross-section of the Gutstrangs.
  • the cross-sectional determination or cross-sectional detection represents an exact cross-sectional measurement, in particular does not extend to the entire circumference of Gutsstrangs at each detected point. It is quite sufficient, for example, to determine the cross-sectional height at various points by means of a plurality of laser diodes directed in the scan plane from above onto the Gutsstrang and to derive therefrom the maximum height which is decisive for the adjustment of the hold-down device in the first place.
  • a major advantage of the invention is also that the hold-down can be rigid in its currently set position, ie, unlike the prior art spring-down has no elasticity in the vertical direction. This can be achieved, for example, by means of a self-locking drive for the hold-down adjustment, which theoretically can absorb indefinitely large forces of the material to be cut.
  • the bias can not be so large in spring-down devices that even with Gutsstrfiten with rather small cross-sectional height always safe lifting of the Gutsstrangs can be avoided by the footprint of the loading area. Such a lift-off is to be avoided at all costs, since this, on the one hand, distorts the geometrical inaccuracy of the resulting disks and, on the other hand, the scan result, ie the weight of the disks.
  • the distance, d. H. also adjust the contact pressure.
  • the difference between the set distance and the actual height of the Gutstrangs be chosen to be larger than the hard less elastic foods for compliant, elastic foods.
  • T 2 T 1 + s / v
  • the invention further ausgestaltend is provided that the contact pressure element is driven in the feed direction, whereby a safe and low-power feed can be realized even with large contact forces.
  • the effective holding force can be optimized depending on the food to be cut and during the entire slicing process in the Be held in the optimum range.
  • a machine for cutting strand-like food with a loading area into which a Gutstrang the food is inserted, a cutting device with the Gutstrang successively at least in slices, a feed device with which the Gutstrang from the loading area on the cutter ownedschiebbar, one arranged in the feed direction in front of the cutting device scanning device, within a scanning plane of the respective cross section of the Gutstrangs is determined without contact, and arranged between the scanning device and the cutting device holding means with which the material to be cut in the direction of a footprint of the insertion region can be pressed , the underlying object is achieved in that a contact with the surface of the Gutstrangs contact pressure of the hold-down device in dependence on the previously determined by means of the scanning device cross section in its distance from the footprint is variable, the hold-down device is controlled by the scanning device.
  • Such a cutting machine is designed in such a way that the time can be derived from the quotient of the distance between the scanning plane and the pressing element as well as the feed speed that a distance corresponding to a specific cross section of the material strand is later adjusted to the contact pressure element than the aforementioned cross section of FIG the scanning device was detected.
  • the contact pressure element is a rotatably mounted or rotatably driven roller, the cross section of which increases chronically from a central region to the edges.
  • the contact pressure element is a rotatably mounted or rotatably driven roller, the cross section of which increases chronically from a central region to the edges.
  • the aforementioned shape with a diameter-reduced central region and an increasing diameter, approaches the edges towards most of the articles to be cut with an upper surface which is convex in cross-section. An improved lateral guidance is made possible by such a geometry of the pressing element.
  • the cross section of the Gutstrangs by means of the scanning device continuously determinable and the distance of the contact pressure element to the contact surface continuously corresponding customizable.
  • an optimization of the hold-down effect is achieved throughout the slicing process over the entire length of the Gutstrangs.
  • the feed device is a conveyor belt which preferably runs horizontally with its contact surface, a simple introduction of feed forces into the material strand to be cut can be achieved within the entire insertion region.
  • the additional advancing means comprises a roller provided with spines on its outer casing, wherein in each case a strap of an additional conveyor belt is arranged between two circumferential rows of spikes adjacent to the axial direction, the spikes protruding with respect to the plane formed by the straps.
  • a continuous, belt-like support formed by the plurality of straps the use of positive locking elements is at the same time possible to prevent slippage in the feed.
  • the pressing element is attached to two perpendicular to the footprint, preferably vertically extending lifting rods, which are movable by means of a servo drive in its longitudinal direction.
  • the attachment to two lifting rods, preferably at two opposite ends of the pressing, allows a secure guide the same, in particular, this prevents tilting or lateral deflection of the contact pressure at higher contact pressures.
  • the servo drive allows a positionally accurate and fast adjustment of the distance between the contact pressure element and the contact surface for the material strand.
  • FIGS. 1 to 4 illustrated device 1 for cutting food in the form of each Gutsstrangs in slices has an insertion area 2, in which a Gutsstrang of the food can be inserted.
  • a footprint 3 of the insertion area 2 is formed by the upper strand of a circulating conveyor belt 4, the deflection and drive rollers are not shown for simplicity.
  • the contact surface 3 of the insertion region is further formed by a plurality of mutually parallel and between each a distance transversely to the conveying direction having straps 5 an additional feed means 6.
  • the additional feed means 6 further comprises one on its outer jacket with spikes (see, in particular Fig. 1 ) provided roll.
  • the spines run in circumferential rows, the axially in the way spaced from each other, that in each case between two adjacent straps 5 a number of spikes 7 of the roller is arranged.
  • the spines 7 are dimensioned in their length so that they protrude with respect to the plane formed by the straps 5 as part of the footprint 3 and can penetrate in this way in the guided along the footprint 3 Gutsstrang to form a slip-preventing positive engagement.
  • the device 1 further includes a cutting device 8, which comprises a rotationally drivable sickle-shaped knife 9.
  • Component of the device 1 is further a scanning device 10 with a rotatably mounted scanning ring 11, which is provided with two offset by 180 ° laser optical scanning elements 12 which within a scan plane passing through a passage cross section within the scan ring Gutsstrang in terms of its outer contour, i. of its cross-section, palpating and measuring.
  • the scan ring 11 in each case performs an oscillating rotational movement over an angular range of slightly more than 180 °, whereby due to the two scanning elements 12, the entire outer circumference of the Gutsstrangs is scanned within the scan plane.
  • the hold-down device 13 consists of a rotatably mounted roller-shaped pressing element 15, from whose two front ends two vertically extending lifting rods 16 go out.
  • the lifting rods 16 terminate in a drive means 17 of the hold-down device 13.
  • the drive means not shown, there is a servo motor, which allows a fast and precise vertical displacement of the two lifting rods 16 and thus also the pressing member 15.
  • the contact pressure element 15 is cylindrical in its central region, while adjoining the conical regions on both sides so that in cross-section in particular concave Gutstrnature are also guided laterally.
  • the contact pressure element 15 can be designed as a rotatably driven and also provided with spikes roller.
  • the device 1 further comprises a gripping device 18 which is provided at its front end facing the cutting device 8 with an engagement element 19 in the form of 5 angled and mutually parallel claws.
  • the claws are rigidly connected to a front horizontally oriented part 20 of the gripping device 18.
  • a rear obliquely upward extending closes Part 21 At this part 20, a rear obliquely upward extending closes Part 21.
  • the construction of the vertically movable up and down gripper device 18 is based on the Figures 5 and 6 explained in more detail below.
  • the fixing device 22 which, viewed in the feed direction, is arranged in front of the scanning device 10.
  • the fixing device 22 consists of a pivotably mounted in a joint 23 on a frame-shaped part of the machine housing arm 24, which is formed by a pneumatic cylinder.
  • the downward emerging from the pneumatic cylinder piston rod 25 carries at its lower end a contact element 26 in the form of a horizontally extending rod portion which is rigidly connected to the piston rod 25 and this gives a T-shaped configuration at its end.
  • the position of the contact element 26 is on the one hand by retraction or extension of the piston rod 25 variable.
  • the contact element 26, starting from the in the Figures 3 and 4 shown first working position in the feed direction (arrow 27 in FIG. 4 ) pivot by rotation in the joint 23.
  • the structure of the fixing device 22 is based on the FIGS. 7 and 8 later explained again in more detail.
  • the rear part 21 of the gripping device 18 is fastened by means of two clamping elements 28 on a horizontally extending rod 29.
  • the rod 29 is at her in the Figures 5 and 6 invisible front end provided with a nut which cooperates with a lifting spindle 30.
  • the lifting spindle 30 is rotated by a drive 31, which may be pneumatically or electrically actuated, via a non-visible belt drive in rotation, so that the rod 29 and with it the kind of boom forming parts 20 and 21 with the engagement element 19 connected thereto Move up and down in vertical direction.
  • the rod 29 moves along a vertical stroke up and down limiting slot 32 in a housing 33 of the gripping device 18.
  • the gripper device 18 is supported by means of an angled boom 34 via a sliding bush 35 on a linearly extending guide rod 36.
  • the housing 33 of which also extends the extension arm 34 is mounted in a linearly displaceable manner on a further guide device.
  • the linear displacement of the gripper device 18 overall takes place by means of an unrecognizable but generally known drive.
  • FIG. 6 shows, the front part 20 below the engaging element 19 on a hinged scraper element 37 in the form of a comb, which is able to grab with its four prongs between the claws of the engagement element 19.
  • the stripping element 37 is drivable via a lever mechanism and a pneumatic cylinder 38 not shown in detail such that it performs a pivoting movement about an axis of rotation, not shown, and pressed by an engagement position, not shown, in which the stripping element through the Gutsstrang upon penetration of the engagement element 19 upwards is in the in FIG. 6 shown stripping position, in which the tines of the stripping element 37 are located at a level below the tips of the claws of the engagement member 19.
  • a still remaining piece connected with the engagement element which can not be further cut, can thereby be removed from the engagement element 19.
  • FIG. 7 shows the fixing device 22 in a first working position in which the contact element 26 located at the end of the piston rod 25 is in contact with the surface of a Gutsstrang located underneath but not shown at a first time.
  • the piston rod 25 penetrates a first upper plate 39 in a first slot 40.
  • a second plate 41 arranged underneath has a second slot 42 which extends in its projection into the contact surface 3 of the insertion region 2 in the direction of the feed direction 27.
  • the two sheets 39 and 41 are pivotable relative to each other and that within a plane formed by their contact surfaces.
  • FIG. 8 shows the arm 24 together with the piston rod 25 in a second working position in which a pivoting has taken place by an angle ⁇ .
  • a pivoting is due to the fact that the contact element 26 moves during the exercise of the fixing function in the feed direction (arrow 17), so that the contact point of the contact element 26 on the surface of the Gutsstrangs during the contact pressure corresponding to the feed rate of the Gutsstrangs by a certain distance in Feed direction has moved.
  • the piston rod 25 penetrates the two slots 40 and 42 at their compared to FIG. 7 opposite end portions.
  • the piston rod 25 penetrates the two sheets 39 and 41 always in a minimized in area passage cross-section to prevent the passage of dirt from the loading area upwards.
  • the attachment of the sheets 39 and 41 takes place on a machine-fixed inclined plate 44, the inclination of the inclined rear part 21 of the gripper device corresponds to the gripper device 18 can move sufficiently far forward.
  • An unillustrated Gutsstrang a food, such as a raw ham with greatly varying cross-sectional shape is inserted into the insertion area 2.
  • the gripper device 18 is positioned in the horizontal direction and in the vertical direction so that the claws of the engagement element 19 are located above the rear end region of the Gutsstrangs in the feed direction.
  • the gripper device 18 is then lowered in the vertical direction, so that the engagement element 19 penetrates into the Gutsstrang.
  • the conveyor 4 is continuously driven during the above-described operation.
  • the positioning and lowering of the engagement member 19 of the gripper means 18 must therefore be done with moving Gutsstrang, i. during lowering, the gripper device 18 is moved simultaneously with the feed speed in the feed direction. A relative movement between the gripper device 18 and Gutsstrang thus does not take place.
  • the Gutsstrang is held down at its front end during the lowering of the engaging member 19 by means of the fixing device 22 and thus secured against tilting.
  • the pneumatic cylinder forming the arm 24 is pressurized at the time of lowering the engaging element 19, so that the piston rod 25 extends and the contact element 26 is supported on the upper side of the Gutsstrangs in the front end region. Since the Gutsstrang moves during this holding or securing operation in the feed direction, and the contact element 26 must be able to follow this horizontal movement.
  • the articulated mounting of the arm 24 including the piston rod 25 and the contact element 26 allows at this moment that the contact element 26 can follow the feed movement of the Gutsstrangs.
  • the beginning and end position of the pivoting movement are in the FIGS.
  • the fixing device 22 also in the in FIG. 8 shown second working position can exercise their holding function, a greater length of the arm 24 is required, ie the piston rod 25 must continue to extend out of the pneumatic cylinder be. Therefore, the pneumatic cylinder is continuously connected to the pressure supply during the fixing operation and therefore exerts in its further extended state according to FIG. 8 a (equal) holding force on the surface of the Gutsstrangs.
  • the end position of the piston rod, ie the contact element 26, thus results automatically by the predetermined system pressure, the compressed air. Regardless of the pivot position of the fixing device 22 thus ensures the Gutsstrang always with the same holding force.
  • the piston rod 25 of the fixing device 22 actively retracted as possible by applying the other side of the piston of the pneumatic cylinder possible. While in the Figures 3 and 4 the piston rod 25 and the contact element 26 are shown in an extended position, ie a fixing position, the piston rod is retracted so far in a rest position that the contact element 26 bears directly against the inclined plate 44 and thus has a minimum possible space requirement.
  • the cross section of Gutsstrangs is continuously detected within the scan plane in order to draw conclusions about the subsequently cut slices can.
  • the information about the cross section of the Gutsstrangs determined by the scanning device according to the invention not only used to determine the weight of the cut slices, but also for positioning of the pressing member 15 of the hold-down device 13.
  • the information regarding the height of the respective cross-section of Gutsstrangs is needed , If necessary, however, further information about the cross-sectional shape can also be incorporated into the determination of the optimum distance of the contact pressure element 15 of the hold-down device 13 from the contact surface 3.
  • the knife is stopped in a position outside the conveyor section.
  • the gripper device 18 is moved through the cutting plane with the engagement element 19 and the remnant piece of the Gutsstrangs, so that the remainder on an adjoining, but not shown in the drawing removal conveyor belt can be stored to later from the weighing device before to be discharged from the packaging station.
  • the stripping element 37 is activated and thus the remaining piece is stripped off the claws of the engagement element 19.
  • the gripper device 18 is then returned at maximum speed against the feed direction and at the same time raised.
  • the next Gutsstrang has been placed on the conveyor belt 4, which is already taken in the already described at the beginning of the engagement member 19 of the gripper device 18 at its rear end.
  • the fixing device 22 is back in action.
  • the conveyor 4 was moved at a continuous speed, namely, the feed speed.
  • the gutstrings are placed on the conveyor belt 4 side so that there is a sufficient horizontal distance between them.

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  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Processing Of Meat And Fish (AREA)
  • Meat, Egg Or Seafood Products (AREA)
  • Formation And Processing Of Food Products (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)

Claims (12)

  1. Procédé pour la découpe au moins en tranches d'un produit alimentaire allongé, dans lequel une barre de produit alimentaire est déposée dans une zone de dépose (2) d'une trancheuse, la barre de produit est ensuite avancée au moyen d'un dispositif d'avancement vers un dispositif de coupe (8), la barre de produit est déplacée avant le dispositif de coupe (8) à travers un plan de balayage d'un dispositif de détection par balayage (10) avec lequel la section de la barre de produit se trouvant dans le plan de balayage est déterminée sans contact et la barre de produit est ensuite découpée au moins en tranches au moyen du dispositif de coupe (8), la barre de produit étant pressée par un dispositif de maintien (13) en direction d'une surface d'appui (3) de la zone de dépose (2), caractérisé en ce que la distance entre un élément presseur (15) du dispositif de maintien (13) se trouvant en contact avec la surface de la barre de produit et la surface d'appui (3) de la zone de dépose (2) est ajustée en fonction de la section de la barre de produit déterminée par le dispositif de détection par balayage (10).
  2. Procédé selon la revendication 1, caractérisé en ce que la section est déterminée en continu au moyen du dispositif de détection par balayage (10) et la distance entre l'élément presseur (15) et la surface d'appui (3) est ajustée en conséquence de façon continue, la section de la barre de produit déterminée à un instant T1 entraînant un ajustement correspondant de l'élément presseur (15) à un instant T2, qui est calculé comme T2 = T1 + L/v, où L correspond à la distance mesurée dans le sens horizontal entre le plan de balayage et l'élément presseur (15) et v à la vitesse d'avancement de la barre de produit.
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce que l'élément presseur (15) est entraîné dans le sens d'avancement (17).
  4. Procédé selon l'une des revendications 1 à 3, caractérisé en ce que la distance entre l'élément presseur (15) et la surface d'appui (3) est en permanence légèrement inférieur ou supérieur à la hauteur de la section de la barre de produit déterminée par le dispositif de détection par balayage (10).
  5. Dispositif pour la découpe d'un produit alimentaire allongé, avec une zone de dépose (2) dans laquelle une barre de produit alimentaire peut être déposée, un dispositif de coupe (8) avec lequel la barre de produit peut être découpée consécutivement au moins en tranches, un dispositif d'avancement avec lequel la barre de produit peut être avancée à partir de la zone de dépose (2) vers le dispositif de coupe (8), un dispositif de détection par balayage (10) disposé avant le dispositif de coupe (8) dans le sens d'avancement (17), qui peut déterminer sans contact la section de la barre de produit dans un plan de balayage, et un dispositif de maintien (13) disposé entre le dispositif de détection par balayage (10) et le dispositif de coupe (8), avec lequel le produit à couper peut être poussé en direction d'une surface d'appui (3) de la zone de dépose (2), caractérisé en ce qu'un élément presseur (15) du dispositif de maintien (13) pouvant être mis en contact avec la surface de la barre de produit peut être ajusté en fonction de la section déterminée précédemment au moyen du dispositif de détection par balayage (10) en ce qui concerne sa distance par rapport à la surface d'appui (3) de la zone de dépose (2), le dispositif de maintien (13) pouvant être commandé par le dispositif de détection par balayage (10).
  6. Dispositif selon la revendication 5, caractérisé en ce que le dispositif de détection par balayage (10) peut calculer, à partir du quotient de la distance entre le plan de balayage et l'élément presseur (15) et de la vitesse d'avancement, la différence de temps avec laquelle la distance de l'élément presseur (15) correspondant à une certaine section de la barre de produit est réglée sur l'élément presseur (15) plus tard que la détection de cette section par le dispositif de détection par balayage (10).
  7. Dispositif selon la revendication 5 ou 6, caractérisé en ce que l'élément presseur (15) est un rouleau supporté avec possibilité de rotation ou pouvant être entraîné en rotation, dont la section augmente en forme de cône du milieu vers les bords.
  8. Dispositif selon l'une des revendications 5 à 7, caractérisé en ce que la section de la barre de produit peut être déterminée en continu au moyen du dispositif de détection par balayage (10) et la distance entre l'élément presseur (15) et la surface d'appui (3) peut être ajustée de façon correspondante en continu.
  9. Dispositif selon l'une des revendications 5 à 8, caractérisé en ce que le dispositif d'avancement est une bande de transport (4).
  10. Dispositif selon la revendication 9, caractérisé en ce qu'il est prévu entre la bande de transport (4) et un cadre de guidage (14), pour un couteau à trancher (9) du dispositif de coupe (8), un moyen d'avancement supplémentaire (6) pourvu d'éléments d'engagement positif sur sa surface.
  11. Dispositif selon la revendication 10, caractérisé en ce que le moyen d'avancement supplémentaire (6) présente un rouleau pourvu de pointes (7) sur son enveloppe extérieure, une bandelette (5) d'une bande de transport supplémentaire étant disposée entre deux rangées de pointes (7) circonférentielles voisines dans le sens axial, lesquelles pointes (7) dépassent du plan formé par les bandelettes (5).
  12. Dispositif selon l'une des revendications 5 à 11, caractérisé en ce que l'élément presseur (15) est fixé à deux tiges de poussée (16) perpendiculaires à la surface d'appui (3) et de préférence verticales, qui peuvent être déplacées dans leur sens longitudinal au moyen d'un servomoteur.
EP06003116A 2005-03-22 2006-02-16 Méthode et dispositif de coupe pour produits alimentaires ayant une forme allongée Active EP1704971B1 (fr)

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DE102005013732A DE102005013732A1 (de) 2005-03-22 2005-03-22 Verfahren und Vorrichtung zum Schneiden von strangförmigen Lebensmitteln

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DE102011122069A1 (de) 2011-12-22 2013-06-27 Weber Maschinenbau Gmbh Breidenbach Vorrichtung zum Aufschneiden von Lebensmittelprodukten
DE102016102034A1 (de) * 2016-02-05 2017-08-10 Textor Maschinenbau GmbH Aufschneiden von Lebensmittelprodukten
GB2586437B (en) 2019-05-03 2022-09-07 Thurne Middleby Ltd Feeding of food products in slicing or portioning machines
DE102020110425A1 (de) 2020-04-16 2021-10-21 Multivac Sepp Haggenmüller Se & Co. Kg Aufschneide-Maschine
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CN113911632A (zh) * 2021-08-31 2022-01-11 红塔烟草(集团)有限责任公司 带式输送机全自动调校及保护执行装置

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EP1704971A1 (fr) 2006-09-27
DK1704971T3 (da) 2008-10-27
DE502006001042D1 (de) 2008-08-21
ES2309841T3 (es) 2008-12-16
ATE400411T1 (de) 2008-07-15
DE102005013732A1 (de) 2006-10-05

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