EP2955138B1 - Method for producing collections from a plurality of different advertising pamphlets and device for carrying out the method - Google Patents

Description

TECHNICAL AREA

The present invention relates to the field of further processing of printed products. It relates to a method for producing collections of a plurality of N (N = 3,4, ...) different advertising leaflets according to the preamble of claim 1. It further relates to an apparatus for performing the method.

STATE OF THE ART

The term "direct mailing" has long been known for activities in which advertising leaflets, brochures, flyers, printed sheets and the like, which are often used for advertising purposes as supplements of a newspaper attached (plugged) were collected by several advertisers to it To make a variety of collections that contain a printed product from a variety of advertisers and in the form of a small stack to the recipient, such as households are delivered and distributed.
In order to handle the individual stack-like collections of printed products during transport and distribution better, it is advantageous to take measures to hold together the individual stacks.
It is known from the prior art, when one of the printed products is folded, to open this printed product and to insert the remaining printed products into the opened printed product. However, the insertion of the printed products requires a considerable expenditure on equipment, which entails corresponding costs.

However, it is also conceivable to hold the collection of printed products together by placing an adhesive or non-adhesive strip around one edge of the collection laterally. Such a technology is eg from the WO 2012/084464 A2 or the WO 2012/084494 A2 the applicant known. It requires additional effort due to the provision of the strips.
Furthermore, it has already been proposed to connect the printed products of such a collection by the application of adhesive dots with each other, as in the document EP 2 465 699 A2 the applicant is described by way of example. Also in this case, the application of the adhesive dots means an additional expense of material, which leads to additional costs for large quantities.
The same applies to proposals according to the document EP 2 121 451 B1 to wrap or wrap the stack of printed products in a special wrapping sheet.
The publication EP 0 671 326 A1 , which describes a general method for transferring wrapping elements to printed product groups, makes the nature of the wrapping elements merely the statement that for this purpose the most diverse wrapping materials come into question. A disadvantage of all known methods and devices that they need special additional materials that must be kept and provided to be applied to the collections.

The publication US 4,694,631 A discloses an apparatus for automatically feeding pre-cut pages and inserting a personalized letter or other pre-cut inserts into a personalized envelope. The device can also combine pre-cut inserts and envelopes from different sources and convert to a full postal envelope.

The publication US 4,179,111 describes a device for folding a sheet such as an envelope with an overlying insert, means for transporting the sheet and the insert and means for folding the sheet around the insert.

The publication WO 2008/074325 A1 discloses a method and apparatus for turning a cover sheet around a stack of overlapping sheets, leaflets and / or leaflets. Used for this purpose is a supply of cover sheets, deducted from the one envelope sheet and used to turn the pile.

The publication WO 03/008237 A1 refers to a method and apparatus for wrapping bundles of printed products with a folded sheet of film wrapped around the bundles as they are moved by a transfer device.

The publication WO 2013/023315 A1 discloses a device for collecting flat objects and for conveying the collected objects as stacks. The device contains a plurality of receiving units arranged one behind the other, which are movable along a closed conveyor track in a conveying direction, wherein the receiving units each form at least along a collecting track a bearing surface on which the objects can be stored. Furthermore, the device contains at least one transfer station for transferring the objects to the receiving units. The device further includes a feeder device for feeding individualized, provided with an identification information items to the receiving units. The sawing device comprises a storage unit for providing the individualized objects in stack formation and a separating unit for separating the individualized objects, a control unit for checking the identification information on the objects, as well as a transfer station, via which the individualized objects are transferred to the receiving units.

The publication US 3,059,391 A relates to a method and apparatus for wrapping a letter and, if desired, one or more inserts or inserts with an envelope. The envelope is formed from a strip material and transported to a position where the letter wrapped around the inserts is placed against the envelope, which is then folded and sealed with its flap to enclose the letter and inserts.

The publication WO 2010/051651 A2 discloses a device for collating flat objects, in particular printed products, and for conveying the collated objects further as a stack, with a plurality of receiving units which are movable in a conveying direction along a closed conveying path defined by a conveying member; a plurality of support elements defining at least in a collation area of the conveyor track a support surface inclined in the conveying direction, on which the objects can be stored, wherein the receiving units grippers comprise with a first and second gripper jaw, the grippers can take a clamping position and an open position, and are able to hold the objects lying on the support surface by transition from the open position to the clamping position between their gripper jaws, and wherein the grippers and the support elements are controllable such that within a receiving unit, the orientation of the support surface relative to the conveyor track and / or an opening angle between the first and second gripper jaw is adjustable independently of adjacent receiving units.

PRESENTATION OF THE INVENTION

It is therefore an object of the invention to provide a method which requires no additional materials and can be carried out easily with limited expenditure on equipment.
It is a further object of the invention to provide a device with which such a method can be carried out.

• Bereitstellen der N Werbeprospekten;
• Bildung eines Stapels aus N-x der N Werbeprospekte, wobei x=1;
• Bereitstellen der x verbleibenden Werbeprospekte als Verpackungselement;
• Einschlagen des Stapels in das Verpackungselement.

These and other objects are achieved by the features of claims 1 and 7. The invention is based on a method for producing collections from a multiplicity of N (N = 3, 4,...) Different advertising leaflets, which are delivered and distributed as part of a "direct mailing" to recipients, eg households, which Collections each comprise a stack of advertising leaflets wrapped in a stacked packaging element, comprising the following steps:

• Providing the N advertising leaflets;
• Forming a stack of Nx of the N advertising leaflets, where x = 1;
• Providing the x remaining advertising leaflets as a packaging element;
• Impact of the stack in the packaging element.

Another embodiment of a method not according to the invention is characterized in that the stack is placed on a base, that the packaging element is deposited on the stack so that it covers the stack with only a partial area, and that the packaging element with the remaining area around the Pile is knocked over; In particular, for wrapping the packaging element around the stack, the remaining surface of the packaging element is bent approximately at right angles downwards in a first step, and in a second step the downwardly bent part of the packaging element is bent back under the stack, the unit being turned off to bend the packaging element Stack and packaging element is moved through a transfer device.

According to another embodiment, the unit of stack and packaging element is moved through a transfer device for turning the packaging element.
A further embodiment is characterized in that for the bending of the packaging element in the transfer device movable elements are used, which are rotated about a transverse to the direction of movement of the unit of stack and packing element oriented axis of rotation.
Yet another embodiment is characterized in that bent after turning of the packaging element, the bent part of the packaging element by applying the unit of stack and packaging element to a conveyor belt and applied to the stack.
A further embodiment is characterized in that some of the advertising leaflets have a fold or a binding, that in the formation of the stack, the folded or bound advertising leaflets are placed on each other so that the folds or bonds form a common edge of the stack , And that the stack with the common edge is wrapped in the packaging element.
Finally, it is advantageous if the packaging elements are grooved prior to breaking the stack.
The device according to the invention for carrying out the method according to the invention is characterized in that the device comprises a packing device in which the packaging element lying partially under the stack is wrapped around the stack, wherein the wrapping device comprises a transfer device and means for moving the unit of stack and packing element through the transfer device.
A further embodiment is characterized in that the means for moving the unit of stack and packaging element are formed as lying in a plane transport routes or conveyor belts, between which a conveyor gap is left free.
Another embodiment is characterized in that the transfer device comprises movable elements which engage in the conveying gap in the transport path of the unit of stack and packaging element. The packaging element may be a single sheet, a folded product, a 4-side, an 8-side, stapled, glued or configured in a comparable manner.
In particular, the movable elements comprise a bristle brush roll, which is arranged in the conveyor gap and is rotatable about a rotational axis oriented transversely to the transport direction.
In particular, however, the movable elements may also comprise rod-shaped drivers which are rotatable about a predetermined axis of rotation through the conveying gap.
In particular, the axis of rotation can be oriented transversely to the transport direction and the drivers can simultaneously perform an oscillating movement parallel to this axis of rotation with the rotational movement about this axis of rotation, between a first extreme position in which the carriers in the transport path of the unit stack and packaging element protrude, and a second extreme position in which the drivers are outside the transport path of the unit of stack and packaging element takes place.

Another embodiment is characterized in that the rod-shaped carriers are arranged on opposite sides of the transport path of the unit of stack and packaging element in a mirror-symmetrical arrangement.

A further embodiment is characterized in that the rod-shaped drivers for generating the overlapping rotational movement and oscillating movement are each mounted in a concentric circle on obliquely arranged turntables.

Alternatively, however, the overlapping rotational movement and oscillating movement of the drivers can also be generated in each case by separate mechanical means.

According to another embodiment, means are provided for feeding the packaging elements to the handling device.

In particular, the feeding means comprise a creasing device for creasing the supplied packaging elements.

BRIEF EXPLANATION OF THE FIGURES

Fig. 1a

in einer schematischen Darstellung ein Ausführungsbeispiel des erfindungsgemäßen Verfahrens;

Fig. 1b

in einer Seitenansicht eine beispielhafte Kollektion von gefalzten Druckprodukten;

Fig. 2

in einer perspektivischen Darstellung ein erstes Ausführungsbeispiel der Vorrichtung nach der Erfindung;

Fig. 3

in einer perspektivischen Darstellung eine nicht zur Erfindung gehörende Vorrichtung;

Fig. 4

in einer schematischen Seitenansicht ein Ausführungsbeispiel eine Umschlagevorrichtung innerhalb der Vorrichtung nach der Erfindung;

Fig. 5

in einer schematischen Seitenansicht ein anderes Ausführungsbeispiel einer Umschlagevorrichtung innerhalb der Vorrichtung nach der Erfindung;

Fig. 6

in einer schematischen Seitenansicht ein weiteres Ausführungsbeispiel einer Umschlagevorrichtung innerhalb der Vorrichtung nach der Erfindung; und

Fig. 7

in einer schematischen Sicht entgegen der Transportrichtung ein anderes Ausführungsbeispiel der Umschlagevorrichtung innerhalb der Vorrichtung nach der Erfindung.

The invention will be explained in more detail with reference to embodiments in conjunction with the drawings. Show it:

Fig. 1a

in a schematic representation of an embodiment of the method according to the invention;

Fig. 1b

in a side view an exemplary collection of folded printed products;

Fig. 2

in a perspective view of a first embodiment of the device according to the invention;

Fig. 3

in a perspective view of a device not belonging to the invention;

Fig. 4

in a schematic side view of an embodiment of an envelope device within the device according to the invention;

Fig. 5

in a schematic side view of another embodiment of a transfer device within the device according to the invention;

Fig. 6

in a schematic side view of another embodiment of a transfer device within the device according to the invention; and

Fig. 7

in a schematic view opposite to the transport direction another embodiment of the transfer device within the device according to the invention.

WAYS FOR CARRYING OUT THE INVENTION

Fig. 1 shows a schematic representation of a method according to an embodiment of the invention. The example shown assumes four individual advertising leaflets 11a to 11d, of which in each case a corresponding supply stack (a pallet or the like) 10a to 10d with a plurality of individual copies is provided and provided.
From the various advertising leaflets 11 to 11d or storage stacks 10a to 10d is now a promotional brochure, in this case the Werbeprospekt11d and the associated supply stack 10d, selected and kept ready for wrapping. In general case N (N = 3,4, ...) different advertising leaflets one is kept ready and the remaining N-1 advertising leaflets are packed with the help of this one selected advertising leaflet. Not covered by the invention, it is also conceivable that more than one advertising brochure, generally x (x> 1) advertising leaflets, is selected, and that the remaining Nx advertising leaflets are packed with the help of x selected.
The N-1 or Nx remaining advertising leaflets, in this example the Fig. 1 The three advertising leaflets 11a, 11b and 11c are fed to a collecting device 12, which brings together three different advertising leaflets from the three different storage stacks with the aid of feed conveyors to form a stack 13 and delivers them to a subsequent packing device 14. The Einpackvorrichtung 14 are supplied from the stockpile 10d of the selected advertising leaflet 11d advertising brochures 11d in another way and each used individually for wrapping or wrapping the stack 13 so that at the output of the wrapping 14 collections 15 are issued in which the stack 13 in a order the edge is beaten advertising leaflet 11d wrapped. In this way, all advertising brochures are once present in the collection 15 and wrapped without the need for extra packing material and provision.

If the promotional leaflets 11a to 11d provided a promotional leaflet is particularly suitable because of its nature (format, material, strength, flexibility, etc.) as a wrapping material, it is advisable to select this promotional leaflet to wrap the stack 13 therein. In particular, the optical design of the selected advertising brochure can already be adapted to his special sentence before, so that information (font, pictures, etc.) on the advertising leaflet are also easy to see when the promotional brochure is used as a wrapping material. It is also advantageous that the advertising leaflet used for wrapping is placed in a prominent place and particularly clearly outwardly in front of all other advertising leaflets within the collection 15.

An embodiment of a packing device 14 is shown in perspective in FIG Fig. 2 played. The packing device is between the end of a collecting device 12 (left edge of Fig. 2 ) and the inlet region of a transport device 29 (right edge of Fig. 2 ) and comprises in a transport plane a plurality of successively arranged band-equipped transport paths 24, 27 and 28. Between the transport sections 24 and 27, a wide conveyor gap 26 is released, is returned to the below.

By means of a transfer device 22, the collecting device 12 outputs the stacks 13 compiled from the individual advertising leaflets, which pass over the upper section of a conveying path 21 coming from below onto the first transport path 24. Synchronously with each output stack 13 is by means of the conveyor line 21 from below each serving as a packaging element advertising leaflet 11d so upwards promoted that it partially, ie with a rear in the transport direction section, comes to rest under the coming of the collection device 12 associated stack 13, while a front portion of the advertising leaflet 11d remains uncovered.

Reached the unit of partially underlying promotional leaflet 11d and lying stack 13 with the advertising leaflet 11d the conveyor gap 26, the uncovered part of the advertising leaflet or packaging element 11d from both sides by projecting into the conveying gap 26 and 26 in the conveying gap from below detected above moving rod-shaped drivers 25 of a transfer device 18a and 18b, lifted up and folded against the transport direction to the rear around the stack 13. After completion of the wrapping process, the collections 15 are transported via the transport path 28 to the transport device 29 and handed over there.

The bar-shaped carriers 25 of the transfer devices 18a, b are, after they have left the region of the conveying gap 26 up out laterally out of the range of transport distances and returned in a closed circuit down to retract there again in the range of transport route and to be ready for a next lifting of a packaging element 11d in the conveying gap 26. A plurality of carriers 25 is arranged on each side so on a arranged obliquely to the transport direction turntable 23 that the individual carriers 25 are aligned transversely to the transport direction and maintain this orientation in the room when turning the turntable 23 unchanged. The rod-shaped carrier 25 thus carry out a movement, which is composed of a rotational movement about an axis of rotation oriented transversely to the transport direction and an oscillating linear movement in the direction of the axis of rotation. But it is also conceivable to arrange the drivers on the turntable so that they lie on the lateral surface of a truncated cone.

The advertising leaflets 11d used as packaging element are withdrawn individually from the supply stack 10d in a transversely arranged feeder 16 and transferred as a shingled stream to a deflection device 17, which individually removes the packaging elements or advertising leaflets 11d via two transport paths 19 and 20 to the conveying path 21, where they are then conveyed upward and combined with the coming out of the collection device 12 stacks 13 in the manner described ("toothed"). The advertising leaflets 11d can be scored in the shingled stream with advantage by a grooving device 50 arranged there, i. be provided in the middle with a groove, which facilitates the subsequent turning in the transfer device 18 a, b.

While at the in Fig. 2 As shown in FIG. 1, the packaging elements or advertising leaflets 11d are fed from below and the stacks 13 come to rest correspondingly on the advertising leaflets Fig. 3 shown plant and handling device 14b exactly the opposite, ie the packaging elements or advertising leaflets 11d are fed from above, stored from the top of the stacks 13 and in the conveying gap 26 by means of similar, but the other way round turning devices 18a, b turned down. Again, the stack 13 are transported by the collecting device 12 by means of transport routes 30 and 31 to an output side transport device 29. The packaging elements or advertising leaflets 11d in turn arrive in a scale flow from a laterally arranged feed device 16 and are then moved individually and at a distance in a deflection device 17 parallel to the transport paths 30 and 31 obliquely downwards onto the stacks and deposited thereon. Again, a creasing device 50 can be used with advantage.

In the embodiments of the Fig. 2 and Fig. 3 circumferential rod-shaped carrier 25 are used to beat the packaging elements or advertising leaflets 11d around an edge of the stack 13. According to Fig. 1b For example, when some or all of the advertising leaflets 11a-d have a fold F or binding, when the stack 13 is formed, the folded banners are placed one upon the other so that the folds F and the bindings share a common edge K of the stack 13 form, and that the stack 13 is taken with the common edge K in the packaging element 11d. Under advertising leaflets with bindings are understood in particular advertising leaflets which have on a particular page caused by gluing connection.

However, there are also other ways to beat the packaging elements or advertising leaflets 1 1d around an edge of the stack 13. In the embodiment of 4 and 5 For this purpose, brush rollers 34 and 39, respectively arranged in the conveying gap 26, are used with corresponding bristles 35 and 40, respectively. In both cases, here - analogous to Fig. 2 The stacks 13 are deposited from above onto the packaging elements or advertising leaflets 11d and the packaging elements or advertising leaflets 11d are wrapped around the stacks 13 upwards. The conveying gap 26 is formed in each case between two transport devices, which consist of transport belts 32, 33 and 36, 37 running in parallel and transport the units of stack 13 and packing element or advertising leaflet 11d between these belts.

In the example of Fig. 4 grab in the local handling device 14c bent in the direction of rotation bristles 35 of the brush roller 34 under the freely emerging portion of the packaging element or advertising leaflet 11d and turn it in a first step in approximately right angles from above. In a second step, the upwardly bent part of the packaging element or advertising leaflet 11d is then transferred over the stack 13 bent back when the unit of stack 13 and upwardly curved packaging element or advertising leaflet 11 d enters the space between the conveyor belts 36 and 37. In order to avoid a drop in the free portion of the packaging element or advertising leaflet 11d when entering the conveying gap 26, additional conveyor belts 38 may be provided laterally of the brush roller 34. These additional conveyor belts 38 are then not necessary if the free portion of the packaging element or advertising leaflet 11d in the transfer device 14d according to Fig. 5 is overturned by a lower brush roller 39 with soft, erecting due to the rotation bristles 40 upwards.

In the embodiment of Fig. 6 a rotating double arm 41 with two opposite arms 42a and 42b is used in the local handling device 14e instead of brush rollers, which always exchange their position when one of the stacks has passed the conveying gap 26. In the in Fig. 6 shown position of the double arm 41 keeps the double arm 41 with its upper arm 42a just the intended for packing promotional leaflet 11d so high that the right-funded stack 13 under the (stationary or only slowly moving) upper arm 42a can be moved through. The advertising leaflet 11d strikes the top of the stack around and the stack passes with the folded advertising leaflet 11d between the conveyor belts 36 and 37. After passing through the stack, the double arm turns so far and so fast in the clockwise direction that the other arm 42b now in Fig. 6 shown position of the arm 42a occupies and supports the bottom advertising leaflet of the next batch. This process is repeated continuously.

The in Fig. 7 The mechanism shown acts with its rod-shaped drivers 48a, b and 49a, b similar as in the Fig. 2 and 3 , The drivers 48a, b and 49a, b are pair wise by means of a flexible but length-loyal connecting element 46a, b over and movable guide wheels 45a, b connected to each other, wherein the whole arrangement of guide wheel 45a, b and driver pair on both sides of the conveyor belt 43 is rotatable about an axis of rotation 47 each.

The drivers 48a, b, 49a, b are thus movable through the conveying gap 26 about the axis of rotation 47 oriented transversely to the transport direction and at the same time as the rotational movement about this axis of rotation 47 perform an oscillating movement parallel to this axis of rotation, which is between a first extreme position, in which the drivers 48a, b, 49a, b protrude into the transport path of the unit from stack 13 and packaging element 11d, and a second extreme position, in which the drivers 48a, b, 49a, b outside the transport path of the unit of stack 13 and Packing element 11d takes place takes place. The movement of the driver 48a, b, 49a, b is thus analogous to the movement of the driver 25 on the turntables 23 in Fig. 2 and 3 , The arrangement of the mechanism on both sides of the transport path in the same way mirror-symmetrically, as in the handling devices 18a, b from Fig. 2 and 3 ,

Claims (17)

1. A method for producing collections (15) from a plurality of N = 3, 4, ... different advertising leaflets (11a-d) that are delivered and distributed to recipients, for example households, within the scope of a direct mailing, the collections (15) each comprising a stack (13) of advertising leaflets (11a-c) that is packed in a packaging element (11d) that is wrapped around the stack (13), comprising the following steps:

   - providing the N advertising leaflets (11a-d);

   - forming the stack (13) from N - x of the N advertising leaflets (11a-d), where x = 1;

   - providing the x remaining advertising leaflet as a packaging element (11d);

   - wrapping the stack (13) in the packaging element (11d);

   wherein the packaging element (11d) is laid on a base surface, the stack (13) is placed on the packaging element (11d) in such a way that only a partial area of the packaging element (11d) is covered by the stack (13), and with the remaining area the packaging element (11d) is wrapped around the stack (13),
   and wherein in order to wrap the packaging element (11d) around the stack (13), the remaining area of the packaging element (11d) is bent upwardly approximately at a right angle in a first step, and the part of the packaging element (11d) that is bent upwardly is bent back over the stack (13) in a second step.
2. The method according to Claim 1, characterized in that the unit made up of the stack (13) and the packaging element (11d) is moved through a wrapping device (14a-f; 18a, b; 44a, b) in order to bend the packaging element (11d).
3. The method according to Claim 2, characterized in that movable elements (23, 25; 34, 35; 39, 40; 41, 42a, b; 45a, b, 46a, b, 48a, b, 49a, b), which are rotated about a rotational axis (47) oriented transversely with respect to the direction of movement of the unit made up of the stack (13) and the packaging element (11d), are used for bending the packaging element (11d) in the wrapping device (14a-f; 18a, b; 44a, b).
4. The method according to Claim 2, characterized in that after the packaging element (11d) is bent, the bent part of the packaging element (11d) is bent back and laid against the stack (13) by placing the unit made up of the stack (13) and the packaging element (11d) on a conveyor belt (27, 31, 36).
5. The method according to Claim 1, characterized in that some of the advertising leaflets (11a-d) have a fold (F) or a binding, the advertising leaflets that are folded or provided with a binding are laid one on top of the other during formation of the stack (13) in such a way that the folds (F) or bindings form a common edge (K) of the stack (13), and with the common edge (K) the stack (13) is wrapped in the packaging element (11d).
6. The method according to Claim 1, characterized in that the packaging elements (11d) are grooved before the stack (13) is wrapped.
7. A device for carrying out the method according to Claim 1, wherein the device includes a packing device (14) in which the packaging element (11d) lying partially below the stack is wrapped around the stack (13), the packing device (14) including a wrapping device (14a-f; 18a, b; 44a, b) and means (24, 27, 28; 30, 31; 32, 33, 36, 37, 38, 43) for moving the unit made up of the stack (13) and the packaging element (11d) through the wrapping device (14a-f; 18a, b; 44a, b).
8. The device according to Claim 7, characterized in that the means for moving the unit made up of the stack (13) and the packaging element (11d) through are designed as conveyor segments (24, 27, 28; 30, 31) or conveyor belts (32, 33, 36, 37, 38, 43) that are level, between which a conveying gap (26) is left clear.
9. The device according to Claim 8, characterized in that the wrapping device (14a-f; 18a, b; 44a, b) includes movable elements (23, 25; 34, 35; 39, 40; 41, 42a, b; 45a, b, 46a, b, 48a, b, 49a, b) that impinge on the conveying path of the unit made up of the stack (13) and the packaging element (11d) in the conveying gap (26).
10. The device according to Claim 9, characterized in that the movable elements include a brush roller (34, 39) bearing bristles (35, 40), the brush roller being situated in the conveying gap (26) and being rotatable about a rotational axis oriented transversely with respect to the conveying direction.
11. The device according to Claim 9, characterized in that the movable elements include rod-shaped entraining elements (25, 48a, b, 49a, b) that are movable through the conveying gap (26) while rotating about a specified rotational axis (47).
12. The device according to Claim 11, characterized in that the rotational axis (47) is oriented transversely with respect to the conveying direction, and the entraining elements (25, 48a, b, 49a, b) carry out an oscillating motion in parallel to this rotational axis (47) at the same time as the rotational motion about this rotational axis (47), the oscillating motion taking place between a first extreme position in which the entraining elements (25, 48a, b, 49a, b) protrude into the conveying path of the unit made up of the stack (13) and the packaging element (11d), and a second extreme position in which the entraining elements (25, 48a, b, 49a, b) are situated outside the conveying path of the unit made up of the stack (13) and the packaging element (11d).
13. The device according to Claim 12, characterized in that the rod-shaped entraining elements (25, 48a, b, 49a, b) are situated on opposite sides of the conveying path of the unit made up of the stack (13) and the packaging element (11d) in a mirror-symmetrical arrangement.
14. The device according to Claim 13, characterized in that, for generating the superposed rotational motion and oscillating motion, the rod-shaped entraining elements (25) are each fastened to obliquely arranged rotary disks (23) in a concentric circle.
15. The device according to Claim 13, characterized in that the superposed rotational motion and oscillating motion of the entraining elements (48a, b, 49a, b) are generated by separate mechanical means (47 or 45a, b, 46a, b).
16. The device according to Claim 7, characterized in that means (16, 17) are provided for feeding the packaging elements (11d) to the wrapping device (18a, b).
17. The device according to Claim 16, characterized in that the feeding means (16, 17) include a grooving device (50) for grooving the fed packaging elements (11d).

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