EP3001825A1 - Procédé de détermination d'une position de référence axiale d'une lame de coupe en rotation - Google Patents

Procédé de détermination d'une position de référence axiale d'une lame de coupe en rotation

Info

Publication number
EP3001825A1
EP3001825A1 EP14756044.5A EP14756044A EP3001825A1 EP 3001825 A1 EP3001825 A1 EP 3001825A1 EP 14756044 A EP14756044 A EP 14756044A EP 3001825 A1 EP3001825 A1 EP 3001825A1
Authority
EP
European Patent Office
Prior art keywords
cutting blade
cutting
axial
cutter head
blade
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP14756044.5A
Other languages
German (de)
English (en)
Other versions
EP3001825B1 (fr
Inventor
Volkan Yokaribas
Christoph Kuhmichel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Weber Maschinenbau GmbH Breidenbach
Original Assignee
Weber Maschinenbau GmbH Breidenbach
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Weber Maschinenbau GmbH Breidenbach filed Critical Weber Maschinenbau GmbH Breidenbach
Publication of EP3001825A1 publication Critical patent/EP3001825A1/fr
Application granted granted Critical
Publication of EP3001825B1 publication Critical patent/EP3001825B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • 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
    • 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

Definitions

  • the invention relates to a method for determining an axial reference position of a cutting blade which moves rotationally and / or planetarily in cutting operation on a device for slicing food products, in particular on a high-performance slicer, wherein the cutting knife is attached to a knife head, by means of which the cutting blade is movable.
  • the invention relates to a method for positioning such a cutting blade with respect to a cutting edge of the slicing device, in particular for adjusting the cutting gap between the cutting blade and the cutting edge.
  • the invention relates to a device for slicing food products, in particular a high-performance slicer.
  • an axial reference position of the cutting blade is of great importance in practice, in particular when food products such as e.g. Sausage, ham or cheese by means of so-called slicers at high speed, i. several hundred to a few thousand slices per minute, and thereby cut open with high cutting quality.
  • the cutting gap is the axial distance between the cutting edge defined by the blade of the blade. nier knife or cutting plane on the one hand and that plane on the other hand, which is defined by the cutting edge.
  • An exact adjustment of the cutting gap is especially important for achieving a high filing and cutting quality of extraordinary importance.
  • the cutting gap must be adjustable as precisely as possible and with the highest possible repeat accuracy.
  • a detection of an axial reference position of the knife in different operating states of a slicer is required, in particular at the start of the slicer, with a change of the cutting blade and / or the cutting edge, with a change in the rotational speed of the cutting blade, with a change in the cutting position of the Cutting knife and also during operation, in particular to be able to check the current size of each set cutting gap.
  • Numerous methods for determining an axial reference position of a cutting blade of a slicing device or for cutting gap adjustment are known from the prior art.
  • the object of the invention is to provide a structurally simple and cost-effective option for the precise and reliable determination of the axial reference position and for positioning a cutting blade of a slicing device for food products, so that in particular Position of the cutting gap between the cutting blade and a cutting edge of the slicing can be performed with the highest possible accuracy.
  • the solution of this object is achieved by a method having the features of claim 1.
  • the inventive method comprises the steps that the either non-rotating or rotating at a certain speed cutting blade and a cutting edge by means of an axial drive at least substantially axially relative to each other are driven towards each other, that during the axial movement of the cutter head is monitored, and that a specifiable Measurement exceeding change of a state of the cutter head is considered as a contact of the cutting edge by the cutting blade and as reaching the reference position. If reference is made below to the cutter head, then this is also the cutting blade itself to understand, ie if, for example, a monitoring of the cutter head or a movement of the cutter head or at least a portion or area of the cutter head is mentioned, then this is also To understand a monitoring or movement of the cutting blade or a portion or portion of the cutting blade.
  • a change in a state of the cutter head also means a change in the state of the cutter itself, for example a deformation of the cutter blade.
  • the invention is based on the recognition that the contact between the cutting blade and the cutting edge, so to speak, the "collision" of the cutting blade and cutting edge at the end of the axial travel, impact on the knife blade carrying the cutting blade, ie in general effects on a holder or storage of the cutting blade, or on the cutting blade itself, and indeed those effects that are reproducible and can be clearly detected, for example by means of suitable sensors.
  • the invention means a clear departure from methods known from the prior art in which e.g. either the size of the cutting gap itself measured or a contact between the cutting blade and the cutting edge is detected involving the cutting edge, for example by means of the above-mentioned, integrated in the cutting edge vibration sensor.
  • the influence of the contact of the cutting edge is detected by the cutting blade on the central support or storage, which represents the cutter head, or on the cutting blade itself, which in a simple and cost-effective manner regardless of the cutting edge itself or by influences on the cutting edge can be done.
  • a movement of at least a part or a region of the cutter head and / or the cutting blade is detected and evaluated with respect to a deviation from a starting position.
  • the movement to be detected according to the invention is in particular an offset, a change in position, a deflection, a bending, a deformation and / or a curvature of at least a part or region of the cutter head and / or the cutting blade.
  • the detection of the movement can be carried out directly by a corresponding distance or distance measurement, which will be discussed in more detail below, or for example by an indirect method, for example by integrated pressure sensors in the cutter head, for example, pressure changes in the rolling or sliding bearings of the cutting blade bearing Measure the rotor of the cutterhead caused by a misalignment or a change in the position of the rotor when the rotor-carried cutter contacts the cutting edge at the end of the axial travel.
  • a radial component or an axial component of the movement of the cutter head or a part or area of the cutter head and / or of the Cutting knife to be detected.
  • a fixed point is preferably provided on a cutting head housing of the slicing device.
  • One possible embodiment of the invention is based on the finding that a bearing clearance present in bearings of the cutter head, which is also referred to as bearing clearance, has the result that the cutter head or part or an area of the cutter head is moved when the cutter blade and the cutter head are moved Cutting edge against each other at the end of the axial movement.
  • a possible movement due to the bearing clearance or the bearing clearance of the bearing is consequently detected during the monitoring of the cutter head.
  • the bearing is in particular a rotary bearing for a rotation of the cutting blade, preferably a rolling bearing, or a thrust bearing for a Axial movement of the cutting blade, preferably a plain bearing. The game in the storage of the cutting blade is thus exploited here to detect the contact between the cutting blade and the cutting edge.
  • An advantage of this procedure is that the determination of the reference position of the cutting blade such a movement of the cutter head or a portion or an area of the cutter head and / or the cutting blade is used, which takes place anyway, when the cutting blade and the cutting edge abut against each other.
  • the cutter head is preferably a blank cutter head which, with the cutter blade rotating and / or rotating, permits an axial movement of the cutter blade for carrying out blank cuts.
  • the cutter head comprises a rotor which carries the cutting blade at a free end and is rotatable about a central axis of rotation by means of a rotary drive of the slicing device, wherein during the monitoring movement of the rotor with respect to a fixed point, in particular on a cutting head housing is recognized.
  • the use of the rotor or its lateral surface as reference surface for a movement caused by the contact of the cutting edge by the cutting blade has the advantage that the measurement is particularly simple, if - as is often the case in practice - the outer surface of the rotor for a suitably designed sensors, such as a distance sensor, is accessible.
  • the monitoring can be done in an axial region between the cutting blade and a wall of a cutting head housing.
  • the monitoring can also take place at a different axial position, for example even within a cutting head housing.
  • At least one position sensor in particular a distance sensor, is used during the monitoring.
  • the position sensor can be measured relative to a fixed point, in particular on a cutting head housing, for example, either a radial or an axial distance to a component or assembly of the cutter head, which moves relative to the fixed point when the cutting blade and the cutting edge come into contact.
  • the distance from a fixed point, in particular on a cutting head housing, to a component or structural unit of the cutter head rotating in the slicing operation is measured as a reference surface, in particular to a slicing device by means of a rotary drive. direction rotatable rotor.
  • the outer surface of the rotor is used as a reference surface for this purpose.
  • the object is also achieved by a method having the features of claim 15, wherein for positioning the cutting blade with respect to a cutting edge first by the inventive method, an axial reference position of the cutting blade is determined, in which the cutting blade touches the cutting edge, and starting from the Reference position, the cutting blade is moved to a spaced from the cutting edge working position and / or the cutting edge is moved to a spaced working position of the cutting blade.
  • Cutting knives used in practice usually have a slightly dish-shaped or bowl-shaped form, so that at comparatively high rotational speeds, which are in particular between several hundred and several thousand revolutions per minute, an expansion of the cutting blade takes place, the extent of which depends on the rotational speed , This expansion leads with the same axial position of the cutter head speed-dependent to different axial positions of the blade or cutting plane defined by the cutting edge of the cutting blade. Also by the cutting edge itself and / or by their mounting on the slicing can deviate over the width thereof, which has the consequence that is not exactly predictable, where exactly - seen over the width of the cutting edge - it to the actual contact with the cutting blade comes.
  • such a rotation-induced widening of the cutting blade is taken into account when the cutting blade or the cutting edge is moved into the working position starting from the previously determined axial reference position.
  • a cutting edge-related devia- can be taken into account in a possible embodiment of the invention.
  • This consideration can be done in particular by using machine and / or knife specific default values that can be retrieved or set, for example, from a memory.
  • the invention further relates to a device for slicing food products, in particular a high-performance slicer, with a cutting blade which rotates and / or revolves in the slicing mode, with a rotary drive for the cutting knife, with which the cutting knife can be set in rotation about a central axis of rotation with a cutter head on which the cutting blade is mounted and by means of which the cutting blade is movable, with a cutting edge with which the cutting blade cooperates in the cutting operation, and with an axial drive with which the cutting blade
  • Cutting knife and the cutting edge in aixaler direction are adjustable relative to each other.
  • a reference device is provided according to the invention, which is designed to determine an axial reference position of the cutting blade, in particular for adjusting the cutting gap between the cutting blade and the cutting edge, during an axial travel, in which the either non-rotating or rotating at a certain speed cutting blade and the cutting edge are adjusted in the axial direction relative to each other to monitor the cutter head and to detect a change in a state of the cutter head, which exceeds a predetermined amount when touching the cutting edge by the cutting blade.
  • the slicing device according to the invention is in particular designed such that the inventive method described here can be carried out.
  • the referencing device is designed to detect a movement, in particular an offset, a change in position, a deflection, a bending and / or a curvature, of at least one part or area of the cutter head during the monitoring.
  • the cutter head comprises at least one bearing for the cutting blade, wherein the referencing device is designed to detect during the monitoring of a possible due to the bearing clearance or the bearing clearance of the bearing movement.
  • the bearing is in particular a rotary bearing, preferably a roller bearing, for a rotation of the cutting blade or about a thrust bearing, preferably a sliding bearing, for an axial movement of the cutting blade.
  • the cutter head may be a blank cutter head, which allows axial movement of the cutter blade for performing blank cuts when the cutter blade is rotating and / or rotating.
  • the axial drive with which the cutting blade and the cutting edge for determining the axial reference position of the cutting blade in the axial direction are adjusted relative to each other, identical to the axial drive, which moves the cutting blade or the cutter head for performing blank cuts axially.
  • the cutter head comprises a rotor which carries the cutting blade at a free end and can be set in rotation about the central axis of rotation by means of a rotary drive of the slicing device, wherein the referencing device is designed to monitor a movement of the rotor during the monitoring to recognize a fixed point in particular on a cutting head housing.
  • the rotor is rotatably mounted on a central hub member and axially adjustable relative to the hub member.
  • at least a portion of the axial drive extends through the hub member to the free end of the rotor supporting the cutting blade.
  • the homing device comprises at least one position sensor.
  • the position sensor is in particular a distance sensor.
  • the position sensor is arranged such that the radial distance from a fixed point, in particular on a cutting head housing, to a component or assembly of the cutter head rotating in the slicing operation is measured as the reference surface.
  • This component or constructional unit of the cutter head is, in particular, a rotor which can be set in rotation by means of a rotary drive of the slicing apparatus.
  • the position sensor is preferably arranged in the region of the cutting blade, in particular in an axial region between the cutting blade and a wall of a cutting head housing. Depending on the specific design of the knife head, the position sensor can also be arranged inside the cutting head housing.
  • an evaluation and control unit is provided, which is designed to evaluate the state of the cutter head exceeding a specifiable extent as reaching the reference position and then to stop the relative axial travel of the cutting blade and cutting edge.
  • the evaluation and control unit may be configured to move the cutting blade and / or the cutting edge into a spaced-apart working position using the reference position.
  • the evaluation and control unit can be designed to take into account a rotation-related, speed-dependent widening of the cutting blade when moving into the working position.
  • FIG. 1 shows schematically a part of a slicing device according to the invention according to an embodiment of the invention
  • FIG. 2 shows schematically a part of a slicing device according to the invention according to a further embodiment of the invention
  • FIG. 1 shows schematically a part of a slicing device according to the invention according to an embodiment of the invention
  • FIG. 2 shows schematically a part of a slicing device according to the invention according to a further embodiment of the invention
  • FIG. 1 shows schematically a part of a slicing device according to the invention according to an embodiment of the invention
  • FIG. 2 shows schematically a part of a slicing device according to the invention according to a further embodiment of the invention
  • FIG. 1 shows schematically a part of a slicing device according to the invention according to an embodiment of the invention
  • FIG. 2 shows schematically a part of a slicing device according to the invention according to a further embodiment of the invention
  • FIG. 1 shows schematically
  • Fig. 3 qualitatively the output signal of a position sensor used in the invention.
  • FIG. 1 shows schematically a cutter head 13 of a high-performance slicer according to the invention for slicing food products.
  • the products to be sliced rest on a product support 53 and are conveyed to the left in the direction of a cutting edge 15 defining the front end of the product support 53 by a conveying device, not shown in FIG.
  • the cutting edge 15, also referred to as counter knife, defines a cutting edge plane 16.
  • a cutting blade 1 1 cooperates with the cutting edge 15, which here is a so-called sickle knife, which rotates about a central axis of rotation 19.
  • the cutting edge of the cutting blade 1 1 defines a knife plane 12, which is also referred to as a cutting plane.
  • the knife plane 12 and the cutting edge plane 1 6 are spaced apart here in the axial direction by a non-zero degree, which is referred to as a cutting gap 35.
  • a specific cutting gap 35 must be set, which ensures optimum interaction between the cutting blade 11 and the cutting edge 15 for the respective application.
  • the cutter head 13 constitutes a holder or central bearing for the cutting blade 11.
  • this is Cutting knife 1 1 attached to a hollow cylindrical rotor 25, on which a serving for receiving the knife 1 1 serving knife receptacle 26 and the means of a rotary drive 27 in rotation about the central axis of rotation 19 is displaceable.
  • the rotary drive 27 comprises a drive motor 57, a drive shaft 43 and a drive toothed belt 45.
  • the rotor 25 is displaceable parallel to the central axis of rotation 19 by means of an axial drive 17 in order to carry out so-called empty cuts during normal operation and, before the start of the slicing operation, to carry out the respective operation. wanted to set cutting gap 35.
  • the execution of blank sections is also well known to the person familiar with the operation of high-speed slicers, so that it need not be discussed further here.
  • the axial displaceability of the blade 1 1 bearing rotor 25 is achieved in this embodiment, characterized in that the rotor 25 is axially displaceably mounted on a likewise hollow cylindrical rotor sleeve 55.
  • plain bearings 23, not shown, are provided as thrust bearings.
  • the bearing of the rotor 25 on the rotor sleeve 55 is designed in such a way that it is likewise set in rotation via the rotor 25, which is set in rotation by means of the toothed belt 45.
  • the rotor sleeve 55 itself is mounted via rolling bearings 21 on an inner hub member 39 which is fixed to a wall 29 of a stationary cutting head housing 31.
  • the rotary mounting of the rotor 25 thus takes place indirectly via the rotor sleeve 55 rotatably mounted on the hub member 39, while the axial bearing of the rotor 25 via the thrust bearings 23, which are effective between the rotor 25 and the rotor sleeve 55.
  • the axial adjustment of the rotor 25 by means of a spindle 49 which cooperates at its one end with the rotor 25, is guided in spindle nuts 47 and can be offset at its other end by means of the axial drive 17 in rotation about its longitudinal axis. Due to the cooperation with the spindle nuts 47, a rotation of the spindle 49 in response to the direction of rotation results in a correspondingly directed axial movement of the spindle 49 and thus of the rotor 25 relative to the stationary hub element 39 and thus to the cutting head housing 31.
  • the axial movement of the rotor 25 has an axial movement of the rotor 25 carried by the cutting blade 1 1 result.
  • An evaluation and control unit 37 of the slicer is connected to the rotary drive 27, the axial drive 17 and a position sensor 33, which will be discussed in more detail below and which may be, for example, a distance sensor.
  • the bearings 21 for pivotal mounting of the rotor 25 have a design due to a bearing clearance, which is also referred to as bearing clearance.
  • bearing clearance which is also referred to as bearing clearance.
  • the radial portion of this bearing clearance is exploited to detect that axial position of the cutting blade 1 1, in which the cutting blade 1 1, the cutting edge 15 touches, i. in which the knife plane 12 and the cutting edge plane 1 6 coincide when the cutting blade 1 1 is driven against the cutting edge 15.
  • the desired cutting gap 35 can then be adjusted in a manner known per se and therefore not described in more detail here, starting from this reference position by moving the cutting blade 1 1 away from the cutting edge 15 into a working position by means of the axial drive 17 which of the resulting cutting gap 35 has the size required for the particular application.
  • the radial play in the rolling bearings 21 is utilized in that the radial component of an offset or a change in position of the rotor 25 is detected, which results when at the end of an axial movement of the cutting blade 1 1 in the direction of the cutting edge 15, the cutting blade 1 1 against the cutting edge 15 abuts.
  • the resulting moment can raise the rotor 25 due to the radial play in the bearings 21.
  • This upward deflection of the rotor 25 in FIG. 1 can be detected by means of the already mentioned position sensor 33.
  • the achievement of the reference position of the cutting blade 1 1, in which the cutting blade 1 1 touches the cutting edge 15, can thus be recognized that during an axial movement of the cutting blade 1 1 in the direction of the cutting edge 15, the output of the position sensor 33 by means of the evaluation and control unit 37 is monitored and a predeterminable measure exceeding change of the output signal is regarded as reaching the reference position.
  • a preferred way to attach the position sensor 33 is to attach it to a holder 41, which in turn is attached to the stationary cutting head housing 31.
  • the position of the position sensor 33 is selected inter alia as a function of the structural conditions.
  • the position sensor 33 is positioned so that the maximum deflection of the rotor 25 can be exploited, so that in practice, taking into account the structural conditions is preferably sought, the position sensor 33 above the rotor 25 and viewed in the axial direction as close to Position cutter 1 1.
  • FIG. 1 shows a blank cutter head for a rotating only about the central axis of rotation 19 sickle knife 1
  • a possible example of a blank cutter blade is shown in Fig. 2, with a circular blade 1 1 both in rotation about its own blade axis 20 and simultaneously in a planetary orbital motion about a central axis of rotation 19 can be offset.
  • the self-rotation of the circular blade 1 1 about the blade axis 20 is generated by a spindle 65 carrying the circular blade 1 1 being set in rotation about the blade axis 20 when a rotor 25 on which the spindle 65 and thus the circular blade 1 1 are eccentric with respect to the central axis of rotation 19 is mounted, is set about the central axis of rotation 19 in rotation, by means of a toothed belt, not shown.
  • the spindle 65 and thus the circular blade 1 1 then perform a planetary orbital motion about the central axis of rotation 19 and at the same time a self-rotation about the blade axis 20.
  • the rotor 25 is rotatably supported by rolling bearings 21 on a central support 67, which is fixed to a carrier 14 for the cutter head 13 by screw 71.
  • the carrier 14 in turn is mounted on a fixed cutting head housing 31 by means of two laminated cores 69, which are spaced from one another in the axial direction. These laminations 69 allow a deflection of the carrier 14 and thus the entire cutter head 13 in the axial direction for performing blank cuts and for cutting gap adjustment.
  • the cutter head 13 located on the other side of an imaginary parting plane 61 together with the rotor 25 and circular blade 11 can be displaced axially, while at the same time the rotor 25 of the cutter head 13 carrying the circular blade 11 is rotated by means of said toothed belt is offset.
  • the bearing clearance or the bearing clearance of the rotor 25 rotationally bearing bearings 21 can be utilized even in the circular blade head 13 of FIG. 2, to an offset or a change in position - in general one by the Bearing clearance or the bearing clearance made movement possible - the rotor 25 to detect when the cutting blade 1 1 abuts during an axial movement against the cutting edge, not shown here.
  • FIG. 2 exemplarily illustrate possible positions A, B and C for a position sensor 33 with which, according to the exemplary embodiment according to FIG. 1, the movement of the rotor 25 relative to a fixed point, in particular relative to the cutting head housing 31, are measured can.
  • the position sensor 33 is disposed at the position A or at the position B and oriented accordingly, a radial position change of the rotor 25 utilizing the radial bearing clearance of the roller bearings 21 can be detected.
  • the positions A and B are particularly preferred when the rotor 25 is provided for these drive toothed belt at these locations with so-called flanged wheels.
  • the peripheral region of the rotor 25 can be designed as a reference surface for the distance measurement in a suitable manner. Alternatively, the reference surface for the distance measurement on the aforementioned flanged wheels can be selected. forms his. For this purpose, for example, one of the flanged wheels can be provided with an outwardly angled end region.
  • the position sensor 33 is arranged at the position C and oriented accordingly, an axial position change of the rotor 25 taking advantage of the axial bearing play of the roller bearings 21 can be detected.
  • the axial movement of the entire cutter head 13 and thus of the rotor 25 caused by the adjusting unit 63 e.g. be taken into account that a corresponding correction value is included.
  • Fig. 3 shows the qualitative course of the output signal of a position sensor, as measured in experiments. Shown is the time profile of the sensor signal measured, for example, in mA, which represents a measure of the radial distance d between the position sensor 33 and the lateral surface of the rotor 25 in a configuration corresponding to FIG.
  • the experiment was carried out in a static measurement, i. with non-rotating cutting blade, an axial movement of the rotor 25 at a constant speed in the direction of the cutting edge 15 performed.
  • the time axis shows those time points or travel path points during the continuous process of the rotor 25 in the axial direction.
  • the output of the position sensor 33 shows two characteristic times t1 and t2, between which a change in the distance between the position sensor 33 and the rotor 25 from a higher output value d2 to a lower end value d1 takes place.
  • This waveform thus characteristically reflects the lifting of the rotor 25 by the moment applied to the cutting blade 11 when the cutting edge 15 is touched.
  • time t1 it comes to touching the cutting edge 15 by the cutting blade 1 1 and a subsequent further lifting of the rotor 25.
  • Based on the constant speed of the rotor 25 can be closed from the time t2, from which the output signal of the position sensor 33 no longer changes, to the position of the cutting edge 15.
  • the time t2 corresponds to an axial position as a touch point or zero position at a speed of the cutting blade of 600 revolutions per minute.
  • the invention thus provides a simple, reliable and inexpensive possibility, both in a knife head for a sickle blade as well as a knife head for a circular blade, the contact of the cutting edge 15 by the knife 1 1 and thus a usable in particular for a cutting gap adjustment axial reference position of the knife 1 1, and solely by taking advantage of the influence of the contact of the cutting edge 15 by the knife 1 1 on the knife 1 1 carrying the cutter head 13 and in particular the influence on the central bearing of the blade 1 1, in particular the radial or axial Bearing clearance of the cutter head 13 is exploited to detect a change in position of the blade 1 1 bearing rotor 25, for example, by a simple distance or distance measurement.

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  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Details Of Cutting Devices (AREA)

Abstract

L'invention concerne un procédé de détermination d'une position de référence axiale d'une lame de coupe qui se déplace suivant un mouvement planétaire périphérique et/ou en rotation en mode de découpe et qui est disposée sur un dispositif servant à découper des produits alimentaires, en particulier sur une trancheuse à haut rendement. La lame de coupe est montée sur une tête de lame qui permet de déplacer la lame de coupe. Le procédé comprend les étapes consistant déplacer la lame de coupe, qui ne tourne pas ou qui tourne à une vitesse de rotation spécifique, et un bord de coupe l'un sur l'autre, au moins sensiblement axialement l'un par rapport à l'autre, au moyen d'un entraînement axial, tout en surveillant le déplacement axial de la tête de lame. Si un état de la tête de lame est modifié au-delà d'une limite prédéterminée, on considère alors que la lame de coupe touche le bord de coupe et que la position de référence est atteinte.
EP14756044.5A 2013-09-11 2014-08-27 Methode pour trouver la position de reference axiale d'un couteau rotatif Active EP3001825B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013218158.2A DE102013218158A1 (de) 2013-09-11 2013-09-11 Verfahren zum Ermitteln einer axialen Referenzstellung eines Schneidmessers
PCT/EP2014/068150 WO2015036240A1 (fr) 2013-09-11 2014-08-27 Procédé de détermination d'une position de référence axiale d'une lame de coupe en rotation

Publications (2)

Publication Number Publication Date
EP3001825A1 true EP3001825A1 (fr) 2016-04-06
EP3001825B1 EP3001825B1 (fr) 2019-02-27

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EP14756044.5A Active EP3001825B1 (fr) 2013-09-11 2014-08-27 Methode pour trouver la position de reference axiale d'un couteau rotatif

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EP (1) EP3001825B1 (fr)
DE (1) DE102013218158A1 (fr)
WO (1) WO2015036240A1 (fr)

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DE102020119226A1 (de) * 2020-07-21 2022-01-27 Multivac Sepp Haggenmüller Se & Co. Kg Verfahren zum automatischen Einstellen des Schneidspaltes einer Aufschneide-Maschine sowie hierfür geeignete Aufschneide-Maschine

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DE10143508A1 (de) * 2001-09-05 2003-03-20 Biforce Anstalt Vaduz Verfahren zur Schneidspalteinstellung
DE10359149A1 (de) * 2003-12-16 2005-07-21 Cfs Kempten Gmbh Schneidspalteinstellung
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WO2015036240A1 (fr) 2015-03-19
DE102013218158A1 (de) 2015-03-12

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