DE102015113220A1 - product gripper - Google Patents

Abstract

The invention relates to a product gripper for receiving a product, comprising at least two receivers, a drive means for the pickup between a first position in which the receivers are placed on opposite sides of the male product on a support for the male product, and a second position to move, in which the transducers are at least partially below the male product, and at least one hold-down for fixing the product, wherein the hold-down is at least partially movable so that it is fixing effect by its own weight.

Description

The present invention relates to a product gripper for receiving a product having at least two receivers, a drive means for moving the receivers between a first position in which the receivers on opposite sides of the male product are placed on a support for the male product, and a second position to move, in which the transducers are at least partially below the male product, and with at least one hold-down for fixing the product.

The product gripper is particularly suitable for receiving food portions comprising at least one slice, e.g. Sausage, ham, cheese, meat, dough and pastry or the like formed. The product grippers are used, for example, in connection with so-called "pickers", which are also called "pick and place robots" or "delta robots", for inserting portions in packagings. The product grippers usually comprise sensors designed as blades, which can engage under one portion.

Such product grippers are known in principle. In addition, hold-downs are known which touch and fix the portion from above. For example, the portion does not slip when the blades are moved underneath and when the portions are transferred by moving the product gripper.

Conventional hold-down work, for example by means of springs. The pressure on the product is often comparatively high, so that it may be detrimental to e.g. Damage, the product may come. Also, the same hold-down is used for different products, so that product-specific properties may not be considered sufficiently.

It is therefore an object of the invention to provide a product gripper and a method in which on the one hand fixed products safely and on the other hand damage to the products are avoided.

The object is achieved by a product gripper and a method with the features of the respective independent claims.

According to the invention, the hold-down is at least partially movable so that it is fixed by its own weight effective. It is preferable, but not mandatory, for the hold-down device to be at least substantially fixed by its own weight. According to the invention, therefore, it is not excluded that the hold-down device has an elastic deformable element or an elastically deformable region or is acted upon by an elastic element, so that in addition to the weight of the hold-down device, a particularly comparatively small restoring force is effective, which applies the hold-down device against or on the respective product to be fixed presses. In particular, according to the invention, however, it is provided that the fixing effect is for the most part caused by the weight force of the hold-down device. A resilient arrangement or mounting of the hold-down can serve to reliably reset the hold-down in a starting position or to keep in the starting position.

The hold-down can be freely movable. This is not mandatory. The hold-down may be subject to constraints such as e.g. Guides or reset elements, but this does not preclude the principle of product fixation by the Niederhaltereigegewicht.

The transducers can each be designed as blades, but this is not mandatory. The transducers may e.g. also be executed fork-like. The transducers can, but do not have to, be constructed identically. It is also possible for the transducers to carry out similar working movements, in particular for picking them up and away from each other, but this is not mandatory. The working movements can also be different. It is also possible for one of the transducers to carry out no working movement relative to a part of the gripper which is stationary when receiving and depositing, but e.g. merely provides a contact surface for the product to be recorded or stored. For this purpose, the immobile pickup does not need to get under the portion, i. it is possible, but not compulsory, for the moveable picker to push or push the product onto the immobile pickup during picking.

The fixation of a product, preferably a portion comprising at least one slice, on the one hand can take place, while the receptors, which are also referred to below simply as airfoils, are at least partially moved underneath. The hold-down fixes the product to be picked up while at least one of the blades is moved under the product. On the other hand, the fixation can also take place during transport through the product gripper, i. while the product is moved or transferred with the gripper.

The hold-down can be movable as a whole. In particular, in this case, the hold-down a rigid component that will not deform during normal operation of the gripper. Alternatively, at least a part of the hold-down may be movable in itself. In particular, the hold-down may be deformable so that it can change its outer shape. The deformation can be elastic or plastic. In this way, the hold-down can adapt to the outer shape of the product to be fixed and in particular cling to the outside or surface of the product to gently and safely fix the product.

In particular, the product is merely fixed by the self-weight of the hold-down, i. in addition to the weight force no additional forces such as spring forces act. The hold-down is particularly rigid, i. not formed as an elastic element. Additional drives or additional controls for the hold-down are therefore not required. Also, for example, the drive of the airfoils does not have to provide for the movement of the hold-down, so that e.g. can be dispensed slide doors or other power transmission elements. The mechanism for the blades therefore requires lower forces, so that weight can be saved on the product gripper.

Preferably, the hold-down can be mounted freely movable, in particular in the vertical direction.

For the hold-down device, a stop can be provided, which prevents the hold-down device from sliding out of an optionally provided bearing.

In particular, the hold-down may be associated with a central region of the product, i. an area between the blades. The product is thus held securely while the blades are moved under the product, preferably starting from the edge region. There is thus no displacement of the product, in particular a shingled, stacked, overlapping and / or folded portion of several slices.

Since the hold-down fixes the product by its own weight, the product is not damaged. Namely, the weight of the hold-down can be chosen specifically for the product and adapted to the particular circumstances, such as the product properties and the shape of a portion forming the product.

The behavior of the products in and on a gripper is mostly product dependent, e.g. in terms of adhesion, friction and / or consistency. Also, the behavior depends on the shape of the product, especially the shape of the portion, e.g. Stacking, shingling, so-called "shaved meat" arrangement, as well as the weight of the product, the weight distribution, the height and / or the size. In particular, the underside or the edge profile of the hold-down can be adapted to the expected product shape.

Another factor is the selected design of the product gripper, when using blades or forks, in particular with respect to the blade and fork blade or fork depth. Also involved are an optionally used centering device, the travel speed or acceleration, the device which may be used for ejecting or ejecting the product and / or the requirements for transfer to an associated packaging, e.g. in terms of size, side play or free space in the package around a serving, the discharge height or the like. The fact that the hold-down can express itself by the weight when placing the products in the packaging, an improved and safe storage of the products is guaranteed.

Furthermore, at least partially inclined or wavy band surfaces at the gripping position, ie at the point at which products are picked up, also have an influence on underrunning the products, e.g. by means of blades and thereby possibly also an effect on the product and the requirements of the hold-down.

Different coefficients of friction, e.g. Liquid or grease residues can have an influence on the parts of the product gripper which come into contact with the product, in particular the transducers. The influences on a product can increase, so that with the hold-down on these special conditions must be addressed.

The hold-down can be chosen such that adhesion of product residues is avoided. An adhesion could possibly adversely affect the handling of subsequent portions. Product remnants could possibly get into a packaging if an attachment becomes too large and comes loose unchecked.

Preferably, the holding-down device can have an underside or edge which prevents adhesion and can be coated, for example, in particular at least in the area close to the product. Even with sticky and sensitive products, this allows a secure gripping and fixing over a long period of time.

Alternatively or additionally, the hold-down a product-friendly bottom or edge have, for example, a curvature, a hemisphere, radii, a mountain and valley structure, waves or the like. In this way, penetration into and slippage on the product and consequently damage to the product surface can be avoided. The cleaning effort on a gripper can be kept low.

In particular, the product gripper may have a centering function. If the product is not centered at a desired position, it may cause problems when taking and / or storing the product. In particular, if a target position is not reached when depositing in an associated packaging, packaging errors and / or optically non-optimally looking portions may occur. This may necessitate reworking of portions or even a shutdown of the system. By means of a centering function of the product gripper, on the other hand, it can be ensured that the products are always at the desired position even during acceleration effects during the transfer and that storage errors are avoided.

The product gripper may be e.g. Have pins that can take over the centering function in a simple way. The pins are placed outside the product nominal position. These can be automatically adapted to the product and used for lateral fixation, if the blades are moved underneath or accelerations occur during the transfer.

The pins can in particular penetrate into the interstices of the blades or blade combs when driving together or slide on the flat blades. There are then no further centering devices with additional drives required. In addition, the pins act as a centering device only in the lateral direction. The pins move slightly vertically in the case of a misplaced product, preventing product from being squeezed.

It can be provided with special, preferably longer, pins in the outer region a lateral centering function. Also, the pins may have a reverse L-shape and be provided with an outer, downwardly continuing centering leg as a product boundary.

Further developments of the invention can be found in the dependent claims, the description and the accompanying drawings.

According to one embodiment, at least two hold-down devices are provided. In particular, each pickup can be assigned at least one hold-down device. In addition, at least one hold-down device may also be provided in the central area. However, in the sense of a gentle handling of the product, it may be possible to dispense with a downholder in the middle, which presses on a product while the product is under attack.

Also, a plurality of holddowns may be provided. In particular, the hold-downs can be adapted individually to the position and / or the shape of the product, in particular the product surface. In particular, the hold-downs may be grouped and e.g. form at least one pen or needle bed for the product. In particular, over a range many hold-downs may be evenly or non-uniformly distributed, with the density, i. the number of discrete holddowns per unit area can be chosen differently depending on the particular application.

For example, the hold-downs may be offset or linear, e.g. as parallel lines. For example, several rows of pens are possible. Also, a radial arrangement extending from the center of the product or product gripper hold-down is basically possible.

Preferably, the hold-downs may be arranged symmetrically to one of the two major axes of the product gripper, e.g. in or opposite to the orientation of the transducer.

In particular, a denser arrangement of hold-downs than in a central region can be provided in an outer region of the receiver.

The pressing can be dosed locally by the hold-down. In particular, the adhesion of product residues can be kept low by the metered pressing. Also, the force acting on the product can be flexibly adapted to the currently gripped product.

In particular, the pressure in the region of the pick-up by the individual hold-down, for example when picking up and during transport, distributed to the individual hold-down, which results in a gentle handling of the products. Thus, the edges of the products e.g. not deformed or damaged. Also, no pressure marks on the product top are visible in the packaging.

According to another embodiment, the hold-down are stored individually. Preferably, the hold-down are thereby independently movable. An optimal adaptation to the product to be fixed is thereby ensured.

According to a further embodiment, a guide for the hold-down is provided. The hold-down device is thus guided on the gripper, for example on an associated link, and can move, at least in sections, relative to a base of the gripper or relative to a carrier for the hold-down, for example relative to a guide. In particular, a separate guide can be provided for each hold-down device.

Preferably, all guides can be removed as a common component. This guide unit can in particular be attached, articulated and / or inserted at only one or two points on the product gripper. In particular, the guide unit can be suspended pendulum. This allows a quick product-dependent conversion or cleaning. A whole set of different hold-downs can be exchanged in this way at once.

According to a further embodiment, the hold-down is mounted displaceably relative to the guide. In particular, the hold-down device can be moved freely at least in sections in the vertical direction. The freedom of movement may e.g. be limited by a stop, which prevents the hold-down leaves the guide. Here, for example, a wider head element of the hold-down can be provided as an upper stop, which prevents slipping through the guide.

Alternatively, a bead may be provided on the downholder, e.g. in the middle area. The bead may be located between two, in particular vertical, boundaries of the guide.

Also, the hold-down or the guide may have a conical shape and, for example. to rejuvenate downwards. The hold-down is thus stuck at a certain position in the guide and can not move further down.

According to a further embodiment, the hold-down is pivotally mounted. Thus, the hold-down may e.g. be mounted on a lever, in particular a rocker arm, or even include a lever. The fulcrum can be displaced outwards. The hold-down can here, vividly expressed, be designed or effective in the manner of a piano key or a lever of a typewriter. Again, the hold-down acts by fixing its own weight on the product.

According to a further embodiment, the hold-down is formed like a pin. The hold-down device may in particular have a round, oval or angular cross-section. The hold-down fixes the product in particular punctually, whereby an adhesion of product residues is kept low.

A variety of pen-like hold-downs can allow an individual adaptation to the outer shape of the respective product at the respective position.

Alternatively, the hold-down frame or plate-like design and / or be linearly oriented. The hold-down device may in particular have an approximately rectangular cross-section. Preferably, the hold-down may be oriented parallel to an edge of the receiver, in particular an airfoil edge.

Illustratively speaking, e.g. a plate-like hold-down in this associated, in particular pocket-like leadership as a slide to be guided in a shaft.

It can also be provided a plurality of plate-like or lamellar hold-down. A combination of plate-like and pin-like hold-downs is conceivable.

According to a further embodiment, it is provided that the hold-down is at least partially plastically or elastically deformable to adapt to the shape and / or contour of a male product.

The hold-down may comprise a plastic mass and e.g. be filled with liquid or a gel. In this way, a precise, in particular local adaptation to the shape or contour of the product is made possible.

Furthermore, it can be provided according to the invention that the holding-down device is shaped at least approximately in accordance with the shape and / or contour of a product to be picked up at its product side to be acted upon by the hold-down device.

Furthermore, it can be provided that the hold-down is provided with a centering function, wherein in particular the hold-down has at least one lateral stop for the male product. This can prevent the product from shifting when picked up or moved in an undesirable manner.

If a plurality of hold-downs are provided, these may in particular be identical elements. Alternatively, different hold-down can be provided. These may differ, for example, in terms of diameter, cross section, weight, length and / or shape. Different hold downs are especially suitable for different product heights.

The hold-downs can also be made uniform and hollow, especially with an upper lid. For determining the optimum weight at the respective position, a filling, e.g. a food-grade fluid or a solid food solid, are variably introduced into the hold-down.

For the same size of hold-down their own weight can be determined by the particular material used, i. The hold-downs can differ from each other in terms of their material.

In particular, the configuration of the hold-down can depend on its position. For example, there may be differences between downers in the central area and at the edge of the gripper, i. between internal hold-downs and external hold-downs.

Also, e.g. When folded portions many small hold-down can be used. For more stable products, on the other hand, a few, larger hold-downs can be used.

The hold-downs are in particular removable upwards, e.g. for cleaning or replacement. Thus, the hold down can be replaced individually.

Alternatively, it is also possible to remove the guides as a unit. Thus, a set of hold-downs can be changed at a product change, especially a grade change, by a set of other hold-down at a time.

According to a further embodiment, the hold-down device has an application-specific coding. It is thus for a user e.g. It is easy to see where a hold-down must be placed. This simplifies in particular the assembly and / or disassembly, e.g. for cleaning purposes. Furthermore, a striking design of the hold-down device can lead to a high recognition value for the customers.

The hold-downs can, in particular groups, a different marking, in particular color and / or scribe, shape and / or contour, so for example. External and / or guide contour, exhibit. The coding can be used to indicate which hold-down device has a specific position on the gripper, e.g. in a guide such as a backdrop, and / or a specific product is assigned. At least one property of the hold-down, e.g. the weight can thus be marked outwards.

The invention also relates to a method for receiving a product, wherein at least two transducers are moved between a first position, in which the transducers are placed on opposite sides of the male product on a support for the male product, and a second position, in which the transducers are at least partially under the male product, and at least one hold-down at least partially moves such that he fixes the product by its own weight.

According to one embodiment, the hold-down is controlled by the movement of the pickup. Also, particular groups of hold-downs, e.g. those in the central area or those in the peripheral area, are controlled jointly.

The receivers may comprise an engagement device, in particular a projection, such as e.g. a wedge or pin which is attached to the hold-downs, e.g. the pins, engage and this, preferably synchronously, lift.

In particular, in order to facilitate the pushing of trained as blades or forks transducers and exert less pressure on the portion, at least certain groups can be raised at lowers at least temporarily.

This caused by the movement of the pickup raisers can be done with a certain lead, so that in completely retracted pickup of the non-supported by the pickup part of the product from above no force through the downers learns and thus the middle part of the product during transport not inadvertently pushed down into or through an optional gap between the transducers.

Preferably, in a collapse of the transducer so the pressure on the edge can be relieved, while the central area is relieved during transport. On the one hand, it is thus achieved by the central fixing during the closing of the pick-up that the product remains in the desired position and does not move, while at the same time preventing damage to the edge region of the product. On the other hand, the product is held securely on the edge during transport, while the central area is relieved, so that the product is not pushed through the gap between the pickups.

The hold-down device can, in particular via a guide, be moved back up again by the receptacles are opened again.

The release of the hold-down can already be done with the beginning of the movement of the blades when closing. Alternatively, the hold-down can be released only during the movement of the pickup.

Furthermore, the hold-downs can be released at different times, e.g. first centrally located hold-down and then down holding down. Thereupon, e.g. a medium area relieved for transport and finally charged again to eject the product.

By a movement of the transducer and at least a part of an optionally provided guide unit or link unit can be adjusted. The guide or gate unit may in particular be divided into two and e.g. Hold down for a left and a right pickup, so that the closing movement of the pick-up the guide or sliding block unit in the middle, i. in the area between the transducers, lifting something to relieve the product when closed.

Furthermore, it can be provided according to the invention that the hold-down fixes the product in a region between the transducers, this taking place in particular and preferably only when the transducers are in the first position.

Furthermore, it can be provided according to the invention that the hold-down fixes the product in the areas above the transducers, this being done at least when the transducers are in the second position.

All embodiments of the device described here are in particular designed to be operated according to the method described here. Furthermore, all embodiments of the device described here and all embodiments of the method described here can each be combined with each other.

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

1 a perspective view of an embodiment of a product gripper according to the invention,

2 a sectional view of the product gripper according to 1 .

3 to 6 Top views of various arrangement options inventive hold-down, and

7 to 13 Side views of various embodiments of a product gripper according to the invention.

First, it should be noted that the illustrated embodiments are merely exemplary in nature. In particular, the number and arrangement of the hold-down and guides shown can vary. The features of one embodiment may also be arbitrarily combined with features of another embodiment. In particular, plate-like or lamellar hold-downs can be used instead of pins in the product grippers shown. Instead of blades also differently trained transducers can be used.

In the 1 and 2 is a product gripper for picking up a product 10 shown. The product gripper comprises two blades 12 . 12 ' , These can be between a first position, in which the blades 12 . 12 ' on opposite sides of the product to be picked up 10 on a pad 14 for the product to be recorded 10 be placed, and a second position to be moved, in which the blades 12 . 12 ' at least partially under the male product 10 are located.

Several pen-like hold-downs 16 can the product 10 fix by their own weight. Here are the hold-down 16 at least partially free in a tour 18 movable. The individual guides 18 are at a common leadership unit 20 arranged and can in particular be taken together.

The hold down 16 each have a bead 22 on. The bead 22 is thicker than the leadership 18 so that the hold down 16 with the bead 22 at the lead 18 strikes and not out of the lead 18 can slip out.

The hold down 16 are arranged in two parallel rows, each row being an airfoil 12 . 12 ' assigned.

Basically, the hold down 16 However, be arranged arbitrarily. Some examples are in the 3 to 6 shown.

According to 3 are each two hold-down side and thus above the blades 12 . 12 ' arranged while a hold-down 16 centrally at the gap between the blades 12 . 12 ' is provided.

At the in 4 embodiment shown are the hold-down 16 Radiant from a central hold-down 16 arranged starting.

Another arrangement option is in 5 shown. At the edges is the density of hold-downs 16 higher than in the central area.

As in 6 can be represented instead of pin-shaped hold-downs 16 at least partially plate-shaped hold-down 16 be used. The plate-shaped hold-down 16 can be parallel to the edges of the blades 12 . 12 ' be oriented.

In the embodiment according to 7 have the hold down 16 instead of a bead 22 a head 24 on. The head 24 forms a stop and prevents the hold down 16 through the leadership 18 slips through.

Basically, there are different possibilities, the product 10 take. For example, first the blades 12 . 12 ' put on a pad, while then the hold down 16 be released and due to their own weight in their fixing position on the product 10 can sink, and then the blades 12 . 12 ' be moved towards each other. Alternatively, the hold down 16 when lowering the gripper already in its fixing position, so that they in fixing contact with the product 10 arrive before the blades 12 . 12 ' and so on by means of the product 10 be moved against the weight.

In any case, the product becomes 10 by the weight of the hold-down 16 fixed before the blades 12 . 12 ' be moved towards each other and the product 10 take up. The product 10 does not slip in this way during recording. This fixation can be maintained during further transport.

In addition to the hold downs 16 may be provided laterally centering. These can also be formed pin-shaped and ensure that the product 10 is at a target position. The centering then reach the side of the product 10 past. Their underside extends at least to below the level of the product top.

As in 8th can be seen on at least one leg of the airfoil 12 an intervention device 26 be provided, which about the movement of the airfoil 12 a movement of a hold-down 16 in lifting direction H causes. The intervention device 26 may be wedge-shaped, so that a linear movement is converted into a height adjustment. In particular, during transport, it is beneficial to the pressure on the product 10 in the central position, ie in the area of a gap between the blades 12 . 12 ' to minimize the product 10 is not pushed through.

Be the blades 12 . 12 ' while dispensing the product 10 , For example, to a packaging device, moved apart again, then lowers the central holddown 16 automatically and supports by its own weight the product delivery.

Alternatively or additionally, also for the lateral hold-down 16 intervention means 26 be provided. These are preferably configured so that the pressure on the product is low while the airfoils 12 . 12 ' under the product 10 to be moved. Shown is a wedge-shaped engagement device 26 , which in a vertically oriented groove on the shank of a hold-down 16 or under his head 24 attacks. That way, the product becomes 10 not destroyed on the sensitive edges. The fixation is done in this case mainly by the central holddown 16 ,

During transport, the side hold-downs 16 however, lowered so that the product 10 is held securely while the central pressure is reduced.

At the in 9 embodiment shown are designed as a lever down 16 pivotally mounted about pivot axes S, S '. Again, the hold-down act 16 by their respective own weight as fixation for the product 10 ,

Due to the individual storage is an exact adaptation to the contour of the product 10 possible.

As in 10 can be shown, several hold down 16 also be connected with each other and collectively as a kind stamp the product 10 fix.

Furthermore, as in 11 shown is the hold-down 16 also be deformable and include, for example, a plastic mass. For example, the hold-down device may comprise an enclosure filled at least partially with a liquid or with a gel. For example, within an air-filled enclosure, a weight 28 be formed by a deformable mass. Such a hold-down 16 can adapt itself optimally to the contour of a product 10 to adjust.

Also in the embodiment, which in 12 is shown, the hold-down 16 each next to a weight 28 at the bottom also an air chamber 30 on. In the air chamber 30 Negative pressure can be generated to the downholder 16 to raise. By generating overpressure in the air chamber 30 the weight can be increased.

In the embodiment of 13 are the outer hold downs 16 each additionally provided with a centering function. For this purpose, there is a lateral stop 32 provided, which has a holddown section 34 protrudes downwards. This allows the product 10 be supported in the edge area in a horizontal direction, thereby preventing the product 10 undesirably shifts when the blades 12 move towards and away from each other and when the product 12 is transferred by means of the gripper. The positioning of the hold down 16 on the gripper and their design and dimensioning, in particular with regard to the lateral stops 32 can be targeted with regard to the respective product to be recorded 10 respectively.

LIST OF REFERENCE NUMBERS

10

 product

12, 12 '

 Transducer, airfoil

14

 edition

16

 Stripper plate

18

 guide

20

 Guide unit

22

 bead

24

 head

26

 intervening

28

 Weight

30

 air chamber

32

 lateral stop

34

 Hold section

H

 lifting direction

S, S '

 swivel axis

Claims (15)

Product gripper for picking up a product ( 10 ) comprising at least two transducers ( 12 . 12 ' ), in particular airfoils, a drive means to the transducer ( 12 . 12 ' ) between a first position in which the transducers ( 12 . 12 ' ) on opposite sides of the male product ( 10 ) on an edition ( 14 ) for the product to be recorded ( 10 ) and to move to a second position in which the transducers ( 12 . 12 ' ) at least partially below the product to be absorbed ( 10 ), and at least one hold-down ( 16 ) for fixing the product ( 10 ), wherein the hold-down ( 16 ) is at least partially movable so that it is effective by fixing its own weight. Product gripper according to claim 1, characterized in that at least two hold-downs ( 16 ) are provided. Product gripper according to claim 2, characterized in that the hold-downs ( 16 ) are stored individually. Product gripper according to one of the preceding claims, characterized in that a guide ( 18 ) for the hold-down ( 16 ) is provided. Product gripper according to one of the preceding claims, characterized in that the hold-down device ( 16 ) relative to the leadership ( 18 ) is slidably mounted. Product gripper according to one of the preceding claims, characterized in that the hold-down device ( 16 ) is pivotally mounted. Product gripper according to one of the preceding claims, characterized in that the hold-down device ( 16 ) is formed like a pin. Product gripper according to one of claims 1 to 6, characterized in that the hold-down ( 16 ) is plate-like and / or linearly oriented. Product gripper according to one of the preceding claims, characterized in that the hold-down device ( 16 ) for adaptation to the shape and / or contour of the male product ( 10 ) is at least partially plastically or elastically deformable. Product gripper according to one of the preceding claims, characterized in that the hold-down device ( 16 ) at least approximately according to the shape and / or contour of the male product ( 10 ) by means of the hold-down ( 16 ) is to be acted upon product page. Product gripper according to one of the preceding claims, characterized in that the hold-down device ( 16 ) is provided with a centering function, wherein in particular the hold-down ( 16 ) at least one lateral stop ( 32 ) for the product to be recorded ( 10 ) having. Product gripper according to one of the preceding claims, characterized in that the Stripper plate ( 16 ) has an application-specific coding. Method for picking up a product ( 10 ), in which at least two transducers ( 12 . 12 ' ), in particular airfoils, between a first position in which the transducers ( 12 . 12 ' ) on opposite sides of the male product ( 10 ) on an edition ( 14 ) for the product to be recorded ( 10 ) can be placed, and a second position are moved, in which the transducer ( 12 . 12 ' ) at least partially below the product to be absorbed ( 10 ), and at least one hold-down ( 16 ) is at least partially moved in such a way that the product ( 10 ) fixed by its own weight. Method according to claim 13, characterized in that the hold-down device ( 16 ) by the movement of the transducers ( 12 . 12 ' ) is driven. Method according to claim 13 or 14, characterized in that the hold-down device ( 16 ) the product ( 10 ) in an area between the transducers ( 12 . 12 ' ), in particular in the case of transducers in the first position ( 12 . 12 ' ), and / or that at least in the second position sensors ( 12 . 12 ' ) of the hold down ( 16 ) the product ( 10 ) in the areas above the transducers ( 12 . 12 ' ) fixed.

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