EP2374583A1 - Device for cutting a food product - Google Patents

Abstract

The device has a product infeed system (11) and a cutting knife (13) which rotates around a knife axle (A) and circulates around a central axis. A knife holder (15) is provided for the cutting knife. A unit is provided for generating a rotating- and circulating motion of the cutting knife relative to the knife holder and for converting the relative rotational motion in a linear motion of the cutting knife relative to the knife holder in an adjusting direction (V). An independent claim is also included for a method for slicing of food products by using slicing device.

Description

The present invention relates to a device for slicing food products, in particular a high-performance slicer, having a product feed, at least one cutting blade which rotates about a knife axis and / or orbits planetary about a central axis and to which at least one product to be sliced can be fed in a product feed direction, and a knife holder for the cutting blade.

Such devices are basically known and serve to slice food products such as sausage, meat and cheese at high speed. Typical cutting speeds are between several hundred to several thousand cuts per minute. Modern high-performance slicers differ, inter alia, in the design of the cutting blade and in the manner of the rotary drive for the cutting blade. So-called sickle or spiral blades rotate about an axis of rotation, also referred to here as a knife axis, wherein this axis of rotation itself does not carry out any additional movement, although this is not mandatory, ie, alternatively, the axis of rotation itself can carry out any additional movement whatsoever. For slicers with circular knives, on the other hand, it is provided that the rotating circular knife is also circulated in a planetary manner around a further axis spaced apart from the axis of rotation (also referred to here as center axis). Which blade type or type of drive is to be preferred depends on the respective application. Generally leaves say that with only rotating sickle knives higher cutting speeds can be achieved, whereas rotating and additionally planetary circular blades are universally applicable without sacrificing the cutting quality.

The above-mentioned high cutting speeds make it necessary-irrespective of the type of knife and the type of drive-that in certain operating situations, in particular a portionwise slicing of products, so-called idle cuts are carried out, in which the knife continues to move, i. performs his cutting motion, but not in the product, but "in the void" cuts, so temporarily no slices are separated from the product and these "cutting breaks" can be used to a formed with the previously separated slices portion, such as a stack of discs or shingles arranged discs to be transported away. The time passing between two consecutively separated slices does not suffice for a proper cutting performance or cutting speed for a proper removal of the slice portions. The length of these "cutting breaks" and the number of idle cuts per "cutting break" depend on the particular application.

A problem known in practice in connection with the performance of blanks is that, in most cases, it is not enough to simply stop the supply of the product temporarily to prevent the separation of slices. In fact, in the case of products with a soft consistency, it regularly happens that relaxation effects occur after the product feed has stopped, as a result of which the front end of the product passes beyond the cutting plane and thus into the effective range of the cutting blade. The consequence is an undesirable one Separating so-called product chips or product chips. Apart from that, it always comes to such a Schnitzelbildung regardless of the product consistency whenever the products are continuously fed during the slicing operation, ie even with products with a firm consistency, so where the above-mentioned relaxation effects do not occur, it comes with a continuous product supply to a schnitzel formation.

The phenomena described above are well known to the person skilled in the art, which is why this will not be discussed in detail.

Measures are already known from the prior art, which serve to avoid a Schnitzelbildung when performing blanks. For this example, on EP 0 289 765 A1 . DE 42 14 264 A1 . EP 1 046 476 A2 . DE 101 147 348 A1 . DE 154 952 . DE 10 2006 043 697 A1 and DE 103 33 661 A1 directed.

Accordingly, it has already been proposed not only to interrupt the product supply for the performance of blanks, but also to withdraw the product, if appropriate together with the product support. This approach reaches its limits, in particular, when the cutting speeds and / or the masses to be moved become too large, because then it can no longer be ensured that the front end of the product can be withdrawn sufficiently quickly. As an alternative to retracting the product, it has also been proposed to move the cutting blade away from the front end of the product. Both solutions have the consequence that between the front end of the product and the cutting blade a sufficiently large distance is produced, which reliably prevents a Schnitzelbildung. The required blade stroke is only a few millimeters, but must be in a very short time on the order of a few hundredths of a second. The possibility of a knife adjustment can also be used for other additional functions, eg for adjusting the cutting gap or for idle cuts in the context of a height adjustment or adjustment of the insertion depth of the cutting blade, which takes place in particular in relation to the or products to be sliced or the product edition, where will be discussed in more detail below.

The prior art proposes various ways to produce the desired distance between knife and product by a displacement of the knife.

One way, for example, in DE 101 47 348 A1 is described, to move only the rotating knife holder on which the knife is interchangeably mounted and which is also referred to as a knife holder, knife shaft or rotor, relative to the other components of the so-called cutter head, in addition to the mentioned Knife holder in particular comprises a rotary bearing for the rotational movement of the knife or the knife holder and a base part, with which the cutter head and thus the knife holder is attached to a frame or frame of the slicer. This attachment can be done for example on or in a so-called cutting head housing on or in which not only the cutter head and knife, but also the drive motor for the cooperating with the cutter head, for example via a drive belt knife rotary drive are mounted.

It is also possible to displace the cutter head as a whole, so that for adjusting the knife, a relative movement between knife holder and rotary mounting of the knife is not required. Such a solution is for example in DE 10 2006 043 697 A1 shown.

Furthermore, it is possible to move the entire cutterhead housing including cutter head and rotary drive. Solutions of this type are for example in EP 1 046 476 A2 described.

These approaches described above differ not only in terms of the size of the mass to be moved, but also in terms of design effort and applicability for different types of knives or drives. Although a movement of only the knife holder, for example, has the advantage of a relatively low mass to be moved, but means a relatively high design effort, since with the knife an object must be moved along an axis or moved in any other way, the same time at high speed , eg about the same axis, rotates. For this problems in connection with the storage of the knife or the knife holder to solve. While the above-mentioned sickle or spiral blades only rotate about one axis, but this axis does not additionally carry out a circulation movement, concepts for adjusting the blade despite the aforementioned storage problems can be realized with reasonable effort. This is different with slicers with rotating and at the same time planetary revolving circular knives, because here there is the problem to accomplish with reasonable design effort a displacement of only the knife or the knife holder.

Regardless of the design problems with respect to the storage of the knife or the knife holder, the achievable adjustment speed due to the masses to be moved may be too low in the known approaches to solution at high cutting speeds perform no cuts without sacrificing quality. In addition, to be provided for adjusting drives are often expensive and occupy undesirable amount of space.

The object of the invention is therefore, in a cutting device of the aforementioned type in a simple and space-saving way to allow a reliable blade movement to provide additional functions.

The solution of this object is achieved by a device having the features of claim 1 and by a method having the features of claim 18.

According to the invention means are provided for generating a rotational and / or rotational movement of the cutting blade relative to the blade holder and for converting the relative rotational and / or rotational movement into a linear movement of the cutting blade relative to the blade holder in an adjustment direction.

Thus, as is common in the art, the cutting blade is not fixedly coupled to the knife holder but, in a particular manner, there is relative movability between the cutting knife and the knife holder. Apart from this relative linear mobility in an adjustment direction, the cutting blade is additionally rotatable relative to the knife holder, which represents a departure from the state of the art hitherto applied principle of a rigid drive-effective coupling of cutting blade and knife holder. The induced relative rotation (relative rotation and / or relative rotation) between the cutting blade and the knife holder can be converted into a linear relative movement and thus for desired adjustment of the cutting blade can be used in the adjustment. The adjustment force and the adjustment speed can be easily adapted for a given relative rotation by selecting and designing the conversion means. The cutting blade can thus be temporarily moved away from the product during the current cutting operation by demand-generating a relative rotation, so as to perform additional functions such as idle cuts. The adjustment of the knife can take place particularly quickly in accordance with the invention of the cutting device, since the knife holder or the cutter head does not have to be moved for adjusting and thus the mass to be accelerated is reduced.

The term "knife holder" is to be understood here broadly. It is a component or an assembly on which or on which the cutting blade is supported in a way whatsoever directly or indirectly and relative to or relative to the rotation and / or orbital movement of the cutting blade is generated when an adjustment of the cutting blade to be obtained in the adjustment.

The term "cutting blade" is not necessarily an integral whole to understand, ie it is possible according to the invention, but not mandatory that only a single component is adjusted with the cutting blade. The cutting blade can be fixedly or detachably connected, for example screwed, to a separate component, for example a bushing, which moves together with the cutting blade and, for example due to a corresponding design, serves to improve the guidance of the cutting blade. Such an arrangement of cutting blade and separate component should also be considered as a "cutting blade" in the context of the invention.

Advantageous embodiments of the invention are also specified in the dependent claims, the description and the drawings.

The knife holder is preferably stationary in the adjustment direction. In particular, the knife holder can be fixed relative to a base frame of the device in the direction of adjustment, e.g. a slicer rack or a slicer frame. Apart from the adjustment, the knife holder can of course be movable, for example, according to a rotating drive of the cutting blade or according to other adjustment or adjustment movements of the associated cutter head or cutting head. For the knife holder, no separate adjusting device must be provided in this embodiment.

The adjustment direction preferably runs parallel to the knife axis and particularly preferably coincides with this, whereby a particularly simple construction is made possible.

According to one embodiment, a screw is provided for converting the relative movement in the linear adjustment movement between the cutting blade and the knife holder. A screw allows a simple, reliable and cost-effective implementation of a rotational and / or orbital motion in a linear motion. Alternatively, a positive guide could be provided to implement the movement, e.g. a backdrop tour.

According to one embodiment, to produce the relative movement, the knife holder and / or the cutting knife can be accelerated and / or delayed. It should be noted in this context that it is within the scope of the invention only to a relative movement arrives. That is, in practice, for example, the cutting blade could be slowed down, which equates to an acceleration of the knife holder, or be accelerated, which amounts to a slowing down of the knife holder. It should be noted that during the cutting operation, the product to be sliced due to its interaction with the cutting blade on the rotation and / or orbital motion of the cutting blade can act delaying. This must not lead to an adjustment movement of the cutting blade. Optionally, the adjustment concept is to be interpreted appropriately or are suitable means to ensure that avoid unwanted adjustment movements of the cutting blade.

A control device may be provided, which is designed to cause a change in the rotational and / or rotational speed of the blade holder relative to the rotational and / or rotational speed of the cutting blade during a cutting operation as needed to perform at least one additional function. Alternatively or additionally, the control device may conversely be designed to effect a change in the rotational and / or rotational speed of the cutting blade relative to the rotational and / or rotational speed of the blade holder during a cutting operation as needed for carrying out at least one additional function. The control device can for this purpose control suitable acceleration and braking devices, which act on the knife holder and / or the cutting blade.

The control device can be designed to control the rotational and / or rotational speed of the knife holder by controlling a rotary drive and / or the rotational and / or rotational speed of the cutting knife by influencing the cutting knife to change. This allows a particularly simple and inexpensive construction, since in particular no separate acceleration and braking devices are required, if the intended for the knife holder rotary drive is used. In a simple case, the rotary drive for the knife holder for performing an additional function, for example, temporarily disabled or otherwise slowed down, for example, by an electric motor of the rotary drive is temporarily not energized. It is also possible to actively downshift the rotary drive, ie to let it run only more slowly without completely switching off the rotary drive. To reset the cutting blade of the rotary drive is then operated again as originally.

The cutting blade can in particular be adjustable between a first end position and a second end position. The distance between the two end positions then specifies the maximum adjustment stroke. To determine the end positions can be provided on the knife holder stops for the cutting blade. Such stops can also serve to secure the movable cutting blade on the knife holder. By exchangeable or in turn adjustable stop elements of the adjustment can be adapted to different applications.

According to a further embodiment, a threaded portion is provided on the knife holder, which cooperates with a threaded portion of the cutting blade. The pitch of the threads can be adapted to the particular application. Preferably, a thread with a relatively large pitch is used to achieve the highest possible adjustment speed.

The knife-side threaded portion may be provided on a passage of the cutting blade. The holder-side threaded portion may be provided on a rotatably driven shaft portion of the knife holder. In principle, it is also conceivable to provide the cutting blade with a stub shaft on which a thread is formed and which cooperates with a corresponding nut or a corresponding threaded portion on the knife holder.

According to one embodiment, a coupling between the cutting blade and the knife holder is designed such that the cutting knife strives to move in favor of the knife holder at least with a component against the product feed direction at a rotational and / or rotational speed difference. The cutting blade can be pressed in this embodiment due to its inertia during the normal cutting operation against that stop which corresponds to the cutting position suitable end position, i. The cutting knife automatically assumes the correct basic or cutting position.

According to a further embodiment of the invention, the knife holder is a component of a cutter head, which is stationary in the adjustment direction. Because the cutter head is stationary, a corresponding adjusting device for the cutter head can be saved.

The cutter head can be designed as a sickle cutter head for a sickle knife rotating about the cutter axis. It is also possible that the cutter head is designed as a circular blade head for a circular blade rotating around the blade axis and rotating planetary about the central axis. In the case of a circular knife head, the relative movement between the cutting knife and the knife holder may be on the knife axis and / or refer to the central axis. For example, if the planetary rotation of the cutting blade is realized by an eccentric arm, at one end of which the central axis about which the eccentric arm itself is rotationally driven, and at the other end carrying the cutting blade is the knife axis about which the cutting blade rotates, then Generating the relative movement either by suitable means on the cutting blade-bearing end of the Exzenterarms, so refer to the blade axis, so that the cutting blade moves in the adjustment relative to the eccentric, which is stationary in the adjustment. Alternatively or additionally, a relative movement between the cutting blade and the eccentric arm on the one hand and a cooperating with the Exzenterarm knife holder on the other hand, so refer to the central axis, so that the eccentric and the cutting blade move together in the adjustment relative to this knife holder. Depending on the specific configuration, the knife holder may thus comprise different components; in the aforementioned examples, the eccentric can then, if he is stationary in the adjustment, as a knife holder, as part of the knife holder or merely as a support of any kind of knife holder are considered, while the eccentric when it moves with the cutting blade in the adjustment , can not be considered as belonging to the knife holder.

Furthermore, at least one rotary drive can be associated with the cutter head, which is arranged in particular together with the cutter head on or in a frame-fixed cutting head housing. Also, the rotary drive according to the invention need not necessarily be moved to adjust the cutting blade. If it is a circular knife head, then for the rotation of the cutting blade on the one hand and for the rotation of the cutting blade, ie for rotation about the central axis, On the other hand, be provided a single common drive. However, it is also possible to provide for each of these movements a separate and / or separate drive, in particular independent drives.

According to a further embodiment, the cutting blade is movable in the adjustment direction such that the distance between the cutting blade and a reference plane which runs parallel to a cutting plane defined by the cutting edge of the cutting blade located in a cutting position changes. As a reference plane, e.g. to understand that plane in which, at least approximately during the cutting operation, the front end of the product to be sliced, ie the current cutting surface of the product, is located. The adjustment movement of the cutting blade creates a sufficiently large distance between the cutting plane always defined by the cutting edge of the cutting blade and the front end of the product, whereby a Schnitzelbildung is prevented. The reference plane may also coincide with the plane in which the cutting plane is located when the cutting blade is in the cutting position. Even if the cutting blade is not in the cutting position, ie between the beginning and the end of the adjustment process, the reference plane can be parallel to the cutting plane. This depends on the specific way of adjusting the cutting blade.

In particular, the cutting blade may be movable in the adjustment direction for carrying out at least one additional function, in particular for performing blank cuts and / or for cutting gap adjustment.

The invention also relates to a method for slicing food products, in which by means of a product feed at least one Product is supplied to a cutting blade, for which a driven by a rotary drive knife holder is provided, for adjusting the cutting blade relative to the knife holder in a direction parallel to the axis of rotation of the knife holder adjustment direction, the knife holder is either accelerated or decelerated to a rotational and / or orbital motion and to generate a linear movement of the cutting blade relative to the knife holder.

Fig. 1

zeigt eine vereinfachte Darstellung einer erfindungsgemäßen Vorrichtung zum Aufschneiden von Lebensmittelprodukten.

The invention will now be described by way of example with reference to the drawings.

Fig. 1

shows a simplified representation of a device according to the invention for slicing food products.

According to Fig. 1 a high-performance slicer comprises a product feeder 11, a cutting blade 13 and a knife holder 15 for the cutting blade 13. The cutting blade 13 is here designed as a sickle blade, which rotates about a knife axis A. The knife holder 15 is rotatably mounted in a bearing 17 and comprises a base portion 19 and a screw portion 21. An unillustrated rotary drive serves to put the knife holder 15 by means of a drive belt in a rotational movement about the blade axis A. The knife holder 15 forms together with the bearing 17 a cutter head 23 which is fixedly mounted together with the rotary drive in a cutting head housing, not shown, of the slicer.

A cutting edge 25 of the cutting blade 13, regardless of the operating state of the cutting blade 13, always defines a cutting plane S running at right angles to the blade axis A. On a product support 37 of the product feeder 11 there is a product bar 27, to which engage behind retaining claws 29, which are movable by a not shown controlled drive in and against a product feed P, which in Fig. 1 represented by a double arrow. By means of the driven retaining claws 29, the product bar 27 is fed along the product feed direction P to the cutting plane S. Instead of a single product bar 27, a plurality of product bars arranged next to one another can be fed together to the cutting plane S.

During operation of the high-performance slicer, the rotating cutting blade 13 cuts with its cutting edge 25 through the product bar 27 and separates from this product slices 30, wherein it cooperates with a cutting edge 31 forming the end of the product support 37. The coincidence of the cutting plane S with a plane defined by the cutting edge 31 is here due to a simplifying representation. In practice, a small, usually adjustable cutting gap is present between the cutting blade 13 and the cutting edge 31, which need not be discussed here in detail. The feed rate of the product bar 27 and thus the thickness of the product slices 30 can be adjusted by a corresponding control of the driven holding claws 29. The separated product slices 30 fall on the rear side facing away from the product feed 11 on a support 33 and can be further conveyed or further processed along a conveying direction F, in particular an automatic packaging system (not shown) are supplied.

Out Fig. 1 shows that the slicing of the product bar 27 is carried out in portions, ie the separated product slices 30 form portions 35, which are shown here as a slice stack. Once a portion 35 is completed, this portion 35 is transported on the support 33 in the conveying direction F. So for the removal of the finished portions 35 enough time is available, the above-mentioned idle cuts are performed until the beginning of the formation of the next portion 35, including on the one hand the product feed called product feed - here so the holding claws 29 - stopped and optionally withdrawn and on the other hand, the cutting blade 13 from the front end of the product label 27 away in the Fig. 1 dashed position shown is moved. By moving the cutting blade 13 into this position spaced from the product bar 27, chip or chip formation during the passage of blank cuts is reliably avoided.

The cutting blade 13 is screwed onto the screw portion 21 of the knife holder 15. For this purpose, a passage 41 in the cutting blade 13 has an internal thread 63 which cooperates with a mating external thread 61 on the screw portion 21. By rotating the cutting blade 13 relative to the blade holder 15, the cutting blade 13 can thus be adjusted linearly on the screw portion 21 in and against an adjustment direction V. Between the screw portion 21 and the base portion 19 of the knife holder 15, a projection 43 is formed, which forms a rear stop 45 for the movable cutting blade 13. At the front end of the screw portion 21, a securing element 46 is attached, the cutting blade 13 facing the end face forms a front stop 47 for the cutting blade 13. The securing member 46 is detachable from the screwing portion 21 so as to be e.g. an exchange of - easy to unscrew - cutting blade 13 to make.

Before commissioning the slicer, the cutting blade 13 is screwed onto the screw section 21 up to the rear stop 45 and the securing element 46 is mounted. During normal cutting operation the knife holder 15 is rotated by the rotary drive, wherein the inertia of the cutting blade 13 causes the cutting blade 13 is pressed due to the screw engagement against the rear stop 45. As soon as an unillustrated control device of the slicer determines that a blank cutting phase is to be performed, it causes a delay of the rotating knife holder 15 by a corresponding control of the rotary drive. The cutting blade 13 then unscrews due to the inertial forces in the adjustment direction V to the front stop 47 , wherein the cutting edge 25 of the cutting blade 13 sufficiently far away from the product bar 27, that a Schnitzelbildung is prevented. In practice, a Verstellhub of about 3 mm and a twist angle of the cutting blade 13 with respect to the blade holder 15 of a maximum of 45 ° have been found to be sufficient. However, these values depend, inter alia, on the particular application and can in principle be specified as desired by suitable design and control. As soon as the control device determines that the blank-cut phase is to be ended, it controls the rotary drive in such a way that the knife holder 15 is accelerated. Such an acceleration causes the cutting blade 13 screwed back on the screw portion 21 back to the rear stop 45 and thus assumes the basic or normal position provided for cutting.

For adjusting the cutting blade 13 for a blank operation thus no separate drive is necessary. Rather, the adjustment movement takes place exclusively by utilizing the acceleration forces by influencing the rotation drive provided in any case.

With this concept, it is ensured that the knife holder 15 rotates during cutting at the rated speed provided for this purpose. The fact that the speed for the idle phase phases or other additional functions is temporarily reduced by delaying the rotation drive, is not a problem, since these phases are not cut anyway. Thus, the invention utilizes the fact that for the additional functions the knife holder 15 does not have to rotate at the nominal cutting speed.

It should also be mentioned that it may be necessary to balance the cutting blade 13 itself, since it performs a rotational and / or rotational movement relative to the knife holder 15 during the adjustment process and therefore may be insufficient if only the entire system of the cutting knife 13 and knife holder 15 is balanced.

LIST OF REFERENCE NUMBERS

11

product feed

13

cutting blade

15

knife holder

17

camp

19

base section

21

screw

23

cutter head

25

cutting edge

27

product Riegel

29

retaining claws

30

product slice

31

cutting edge

33

edition

35

portion

37

product support

41

execution

43

approach

45

rear stop

46

fuse element

47

front stop

61

external thread

63

inner thread

A

blade axis

S

cutting plane

P

product feed

F

conveying direction

V

adjustment

Claims (15)

Apparatus for slicing food products (27), in particular high-performance slicers, with a product feeder (11), - At least one cutting blade (13) which rotates about a knife axis (A) and / or planetary about a central axis and the at least one aufzuschneidendes product (27) in a Produktzuführrichtung (P) can be fed, and a knife holder (15) for the cutting knife (13), characterized
in that means for generating a rotational and / or rotational movement of the cutting blade (13) relative to the blade holder (15) and for converting the relative rotational movement into a linear movement of the cutting blade (13) relative to the blade holder (15) in an adjustment direction (V ) are provided. Device according to claim 1,
characterized,
in that a screw connection is provided for converting the relative rotational and / or circulating movement into the linear adjusting movement between the cutting blade (13) and the knife holder (15). Apparatus according to claim 1 or 2,
characterized,
in that the knife holder (15) and / or the cutting knife (13) can be accelerated and / or retarded to produce the relative rotational and / or circulating movement. Device according to at least one of the preceding claims, characterized
in that a control device is provided which is designed to effect a change in the rotational and / or rotational speed of the blade holder (15) relative to the rotational and / or rotational speed of the cutting blade (13) during a cutting operation as needed for carrying out at least one additional function , or the other way around. Device according to claim 4,
characterized,
in that the control device is designed to change the rotational and / or rotational speed of the knife holder (15) by driving a rotary drive, and / or to change the rotational and / or rotational speed of the cutting knife (13) by influencing the cutting knife (13) , Device according to at least one of the preceding claims, characterized
in that the cutting blade (13) is adjustable between a first end position and a second end position, stops (45, 47) for the cutting blade (13) being provided in particular for fixing the end positions on the blade holder (15). Device according to at least one of the preceding claims, characterized
in that a threaded portion (61) is provided on the knife holder (15), which cooperates with a threaded portion (63) of the cutting knife (13), wherein in particular the knife-side threaded portion (61) is provided on a passage (41) of the cutting knife (13) , Device according to claim 7,
characterized,
in that the holder-side threaded portion (63) is provided on a rotationally driven shaft portion (21) of the knife holder (15). Device according to claim 7 or 8,
characterized,
in that a coupling between the cutting blade (13) and the knife holder (15) is designed in such a way that the cutting knife (13) strives at least with one component against the product feed direction in favor of the knife holder (15) in the case of a rotational and / or circulating speed difference (P) to move. Device according to at least one of the preceding claims, characterized
that the blade holder (15) is a part of a cutter head (23) (V) is stationary as seen in the direction of adjustment. Device according to at least one of the preceding claims, characterized
that a cutter head (23) is formed as a sickle blade head for a about the blade axis (A) rotating sickle knife (13), or that a cutter head is designed as a circular knife head for a rotating about the blade axis and about the central axis planetary revolving circular blade. Device according to at least one of the preceding claims, characterized
that a knife head (23) is assigned at least one rotation drive, whereby in particular the rotary drive, together with the cutter head (23) is arranged on or in a frame-fixed cutter head housing. Device according to at least one of the preceding claims, characterized
in that the cutting blade (13) is movable in the adjustment direction (V) in such a way that the distance between the cutting blade (13) and a reference plane parallel to one defined by the cutting edge (25) of the cutting blade (13) located in a cutting position Cutting plane (S) runs, changed. Device according to one of the preceding claims,
characterized,
in that the cutting blade (13) can be moved in the adjustment direction (V) for carrying out at least one additional function, in particular for performing blank cuts and / or for cutting gap setting. Method for slicing food products (27), in particular by means of a device according to one of the preceding claims, in which
by means of a product feed (11) at least one product (27) is supplied to a cutting knife (13) for which a knife holder (15) driven by a rotary drive is provided, wherein for adjusting the cutting knife (13) relative to the knife holder (15) in one The knife holder (15) is either accelerated or decelerated parallel to the axis of rotation of the knife holder (15) in order to produce a rotational and / or circulating movement and from this a linear movement of the cutting knife (13) relative to the knife holder (15) ,

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