EP3378814A1 - Method for producing collections from a plurality of different print products and device for carrying out the method - Google Patents

Abstract

The invention relates to a method for producing collections (15) from a plurality of N (N = 2,3,4, ...) different printed products (11a-d), which collections (15) each have a stack (13). of printed products (11a-c) wrapped in a wrapping element (11d) wrapped around the stack (13) A solution dispensing without additional material is characterized by the following steps: providing the N printed products (11a-d); Forming an intermediate stack (13) of N-x (x = 1,2,3 ...) of the N printed products (10a-d); Providing the x remaining printed products as a packaging element (11d); Impacting the intermediate stack (13) in the packaging element (11d).

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 = 2,3,4, ...) different printed products according to the preamble of claim 1. It further relates to a device for carrying out 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, eg 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.

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.

These and other objects are achieved by the features of claims 1 and 12.

• Bereitstellen der N Druckprodukte;
• Bildung eines Zwischenstapels aus N-x (x = 1,2,3...) der N Druckprodukte;
• Bereitstellen der x verbleibenden Druckprodukte als Verpackungselement;
• Einschlagen des Zwischenstapels in das Verpackungselement.

The invention is based on a method for producing collections of a plurality of N (N = 2, 3, 4,...) Different printed products, which collections each comprise a stack of printed products, which are packaged in a packaging element wrapped around the stack is. It is characterized by the following steps:

• Providing the N printed products;
• Forming an intermediate stack of Nx (x = 1,2,3 ...) of the N printed products;
• Providing the x remaining printed products as a packaging element;
• Impacting the intermediate stack in the packaging element.

According to one embodiment of the method according to the invention, x = 1.

Another embodiment of the inventive method is characterized in that the packaging element is placed on a base, that the intermediate stack is placed on the packaging element, that only a partial surface of the Packaging element is covered by the intermediate stack, and that the packaging element with the remaining surface is wrapped around the intermediate stack.

In particular, in order to turn the packaging element around the intermediate stack, the remaining surface of the packaging element is bent approximately at right angles upward in a first step, and in a second step the bent-up part of the packaging element is bent back over the intermediate stack.

Another embodiment of the method according to the invention is characterized in that the intermediate stack is placed on a base, that the packaging element is placed on the intermediate stack so that it covers the intermediate stack only with a partial area, and that the packaging element with the remaining area around the intermediate stack is beaten around.

In particular, in order to turn the packaging element around the intermediate 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 intermediate stack.

According to another embodiment, the unit of intermediate 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 intermediate stack and packing element oriented axis of rotation.

Yet another embodiment is characterized in that after the bending of the packaging element of the bent part of the packaging element is bent back by applying the unit of intermediate stack and packaging element to a conveyor belt and applied to the intermediate stack.

A further embodiment is characterized in that some of the printed products have a fold or a binding, that in the formation of the intermediate stack, the folded or provided with a binding printed products are superposed so that the folds or bonds form a common edge of the intermediate stack , And that the intermediate stack is taken with the common edge in the packaging element.

Finally, it is advantageous if the packaging elements are grooved prior to the impact of the intermediate 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 partly on or under the intermediate stack is wrapped around the intermediate stack.

An embodiment of the device according to the invention is characterized in that the packing device comprises a transfer device and means for moving the unit of intermediate stack and packing element through the transfer device.

A further embodiment is characterized in that the means for moving the unit of intermediate stack and packing element as in a plane lying transport routes or conveyor belts are formed 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 intermediate 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 execute an oscillating movement parallel to this axis of rotation simultaneously with the rotational movement about this axis of rotation, which project between a first extreme position in which the carriers protrude into the transport path of the unit between intermediate stack and packaging element. and a second extreme position, in which the drivers are outside the transport path of the unit of intermediate 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 intermediate 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 erfindungs-gemäßen 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 ein zweites Ausführungsbeispiel der Vorrichtung nach der Erfindung;

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 inventive method;

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 second embodiment of the device according 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 is based on four individual printed products 11a to 11d, which are, for example, folded or bound brochures, advertising leaflets or the like and of which in each case a corresponding supply stack (a pallet or the like) 10a to 10d with a plurality of single copies is available and provided.

From the various printed products 11a to 11d or storage stacks 10a to 10d, a printed product, in this case the printed product 11d and the associated stockpile 10d, is selected and kept ready for wrapping. In the general case N (N = 2, 3, 4,...) Different print products, one is held ready and the remaining N-1 printed products are packed by means of this one selected print product. However, it is also conceivable that more than one printed product, generally x (x> 1) printed products, is selected, and that the remaining N-x printed products are packaged with the aid of the x selected.

The N-1 or Nx remaining printed products, in the present example the Fig. 1 the three printed products 11a, 11b and 11c are fed to a collecting device 12, which brings together in each case three different printed products from the three different storage stacks by means of feed conveyors to an intermediate stack 13 and delivers them to a subsequent packing device 14. The Einpackvorrichtung 14 are supplied from the supply stack 10d of the selected printed product 11d in other ways printed products 11d and each used individually for wrapping or wrapping the intermediate stack 13, so that at the output of Einpackvorrichtung 14 collections 15 are issued, in which the intermediate stack 13 in a order the edge wrapped printed product 11d is wrapped. In this way, in the collection 15, all printed products are once present and wrapped without the need for additional packing material and provision.

If, in the case of the printed products 11a to 11d, a printed product is particularly suitable as a wrapping material due to its nature (size, material, strength, flexibility, etc.), it is appropriate to select this printed product to pack or wrap the intermediate stack 13 therein. In particular, the optical design of the selected printed product before already at his special Einssatz be adapted so that information (font, images, etc.) on the printed product are also clearly visible when the printed product is used as wrapping material. It is also advantageous that the printed product used for wrapping is placed in a prominent place and particularly clearly outwardly in front of all other printed products 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.

The collecting device 12 outputs, by means of a transfer device 22, the intermediate stacks 13 composed of the individual printed products which reach the first transport path 24 via the upper section of a conveyor line 21 coming from below. In synchronism with each output intermediate stack 13, a print product 11d serving as a packaging element is conveyed upwards by means of the conveying path 21 from below in such a way that it partially, i. with a rear portion in the direction of transport, below which comes the collecting device 12 associated intermediate stack 13, while a front portion of the printed product 11d remains uncovered.

When the unit of partly underlying printed product 11d and intermediate stack 13 thereon with the printed product 11d reaches the conveying gap 26, the uncovered part of the printed product or packaging element 11d becomes from both sides detected by projecting into the conveying gap 26 and in the conveying gap 26 from bottom to top moving rod-shaped carriers 25 of a transfer device 18a and 18b detected lifted and lifted against the transport direction to the rear around the intermediate 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 printed products used as a packaging element 11d are individually withdrawn from the supply stack 10d in a laterally transversely arranged feed device (feeder) 16 and transferred as shingled flow to a deflecting device 17 which the packing elements or printed products 11d individually at a distance over two transport lines 19 and 20 to the conveyor line 21 transported, where they then promoted upwards and with the coming out of the collection device 12 intermediate stacks 13th united ("interlocked") in the manner described. The printed products 11d can be scored in the shingled stream with advantage by a grooving device 50 arranged there, that is to say provided with a groove in the center, which facilitates the subsequent turning over in the transfer device 18a, b.

While at the in Fig. 2 1 and 2, the packaging elements or printed products 11d are fed from below and the intermediate stacks 13 come to lie correspondingly on the printed products Fig. 3 shown plant and handling device 14b exactly the opposite, ie the packaging elements or printed products 11d are fed from above, stored from above on the intermediate stacks 13 and b carried in the conveying gap 26 by means of similar, but the other way round turning devices 18a, b down. Again, the intermediate stacks 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 printed products 11d in turn come 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 down to the intermediate stack and stored on it. 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 printed products 11d around an edge of the intermediate stack 13. According to Fig. 1b For example, when some or all of the printed products 11a-d have a fold F or a binding, when the intermediate stack 13 is formed, the folded or bonded printed products are superimposed so that the folds F and the bindings share a common edge K of the intermediate stack 13 form, and that the intermediate stack 13 with the common Edge K is wrapped in the packaging element 11d. In this context, printed products with bonds are understood to be, in particular, printed products which have a bond produced by adhesion on a specific side.

However, there are also other possibilities for wrapping the packaging elements or printed products 11d around an edge of the intermediate 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 intermediate stacks 13 are deposited from above onto the packaging elements or printed products 11d and the packaging elements or printed products 11d are wrapped around the intermediate stacks 13 upwards. The conveying gap 26 is formed in each case between two transport devices, which consist of transport belts 32, 33 or 36, 37 running in parallel and transport the units of intermediate stack 13 and packaging element or printed product 11d between these belts.

In the example of Fig. 4 grab in the local Umschlagevorrichtung 14c bent in the direction of rotation bristles 35 of the brush roller 34 under the freely emerging portion of the packaging element or printed product 11d and turn it in a first step in approximately right angles from above. In a second step, the part of the packaging element or printed product 11d bent upwards is then bent back over the intermediate stack 13 when the unit of intermediate stack 13 and folded-up packaging element or printed product 11d enters the intermediate space between the conveyor belts 36 and 37. To avoid a drop of the free portion of the packaging element or printed product 11d when entering the conveying gap 26, 34 additional conveyor belts 38 may be provided laterally of the brush roller. These additional conveyor belts 38 are not necessary when the free portion of the packaging element or printed product 11d at 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 intermediate 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 print product 11d so high that the right-funded intermediate stack 13 can be moved under the (stationary or only slowly moving) upper arm 42a. At the same time, the printed product 11d strikes the intermediate stack at the top and the intermediate stack passes between the conveyor belts 36 and 37 with the folded printed product 11d. After the stack has passed through, the double arm rotates so far and so fast in the clockwise direction that the other arm 42b now turns in the Fig. 6 shown position of the arm 42a and supports the lower printed product of the next intermediate stack. 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 connected in pairs by means of a flexible but longitudinally faithful connecting element 46a, b via reciprocating deflection wheels 45a, b, 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.

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 of intermediate 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 from intermediate 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 (19)

Method for producing collections (15) from a multiplicity of N (N = 2, 3, 4 ,..) Different printed products (11a- d) , which collections (15) each have a stack (13) of printed products (11a-d) c) wrapped in a wrapping element (11d) wrapped around the stack (13), characterized by the following steps: Providing the N printed products (11a-d); • formation of an intermediate stack (13) of Nx (x = 1,2,3 ...) of N pressure products (11a-d); Providing the x remaining printed products as the packaging element (11d); • driving the intermediate stack (13) into the packaging element (11d). Method according to claim 1, characterized in that x = 1; and that the packaging element (11d) is placed on a base, that the intermediate stack (13) is placed on the packaging element (11d) , that only a part of the surface of the packaging element (11d) is covered by the intermediate stack (13), and that the packaging element (11d) is wrapped around the intermediate stack (13) with the remaining surface . A method according to claim 2, characterized in that for folding the packaging element (11d) about the intermediate stack (13) the remaining surface of the packaging element (11d) is bent in a first step approximately rechtwink lig upwards, and that in a second step upwardly bent part of the packaging element (11d) is bent back over the intermediate stack (13). Method according to claim 1, characterized in that x = 1; and the intermediate stack (13) is placed on a base, that the packaging element (11d) is deposited on the intermediate stack (13) so that it covers the intermediate stack (13) only with a partial surface, and that the packaging element (11d) with the remaining area is wrapped around the intermediate stack (13). Method according to claim 4, characterized in that in order to turn the packaging element (11d) around the intermediate stack (13), the remaining surface of the packaging element (11d) is bent approximately downwards in a first step , and in a second step bent down portion of the packaging element (11 d) is bent back under the intermediate stack (13) . A method according to claim 3 or 5, characterized in that for turning the packaging element (11d) the unit of intermediate stack (13) and packaging element (11d) is moved through a transfer device (14a-f; 18a, b; 44a, b). A method according to claim 6, characterized in that for turning the packaging element (11d) in the transfer device (14a-f; 18a, b; 44a, b) movable elements (23, 25; 34, 35; 39, 40; 41, 42a , b; 45a, b, 46a, b, 48a, b, 49a, b), which are rotated about an axis of rotation (47) oriented transversely to the direction of movement of the unit consisting of intermediate stack (13) and packaging element (11d); or that after bending of the packaging element (11d) the bent part of the packaging element (11d) is bent back to a conveyor belt (27, 31, 36) by applying the unit of intermediate stack (13) and packing element (11d) and to the intermediate stack (13) is created. Method according to claim 1, characterized in that some of the printed products (11a-d) have a fold (F) or a binding such that when the intermediate stack (13) is formed, the folded or bound printed products are stacked on top of each other, that the folds (F) or bonds form a common edge (K) of the intermediate stack (13), and that the intermediate stack (13) with the common edge (K) in the packaging element (11d) is taken; or A method according to claim 1, characterized in that the packaging elements (11d) are grooved prior to the impact of the intermediate stack (13). Device for carrying out the method according to claim 1, characterized in that the device comprises a packing device (14), in which the packaging element (11d) lying partially on or under the intermediate stack is wrapped around the intermediate stack (13). Apparatus according to claim 10, characterized in that the packing device (14) comprises a transfer device (14a-f; 18a, b; 44a, b) and means (24, 27, 28; 30, 31; 32, 33, 36, 37 , 38, 43) for moving the unit of intermediate stack (13) and packaging element (11d) through the transfer device (14a-f; 18a, b; 44a, b). Apparatus according to claim 11, characterized in that the means for passing the unit of intermediate stack (13) and packing element (11d) as in one plane transport lines (24, 27, 28, 30, 31) and conveyor belts (32, 33, 36, 37, 38, 43) are formed, between which a conveying gap (26) is left free. Apparatus according to claim 12, characterized in that the transfer device (14a-f; 18a, b; 44a, b) comprises movable elements (23, 25; 34, 35; 39, 40; 41, 42a, b; 45a, b, 46a , b, 48a, b, 49a, b), which engage in the conveying gap (26) in the transport path of the unit of intermediate stack (13) and packaging element (11d). Apparatus according to claim 13, characterized in that the movable elements comprise a bristle (35, 40) brush roller (34, 39), wel che in the conveying gap (26) is arranged and is rotatable about an axis of rotation oriented transversely to the direction of transport; or that the movable elements stabför shaped driver (25, 48 a, b, 49 a, b) include, which are about a predetermined axis of rotation (47) rotatably through the conveying gap (26) therethrough movable. Apparatus according to claim 13, characterized in that the movable elements comprise rod-shaped drivers (25, 48a, b, 49a, b) which are movable about a predetermined axis of rotation (47) through the conveying gap (26), wherein the axis of rotation ( 47) is oriented transversely to the transport direction and the drivers (25, 48 a, b, 49 a, b) simultaneously with the rotational movement about this axis of rotation (47) an oscillating movement parallel to this axis of rotation (47) ausfüh ren, between a first extreme position, in which the drivers (25, 48a, b, 49a, b) protrude into the transport path of the unit of intermediate stack (13) and packaging element (11d), and a second extreme position, in which the drivers (25, 48a, b, 49a , b) outside the transport path of the unit of intermediate stack (13) and packaging element (11d) are located takes place. Apparatus according to claim 15, characterized in that the rod-shaped drivers (25, 48a, b, 49a, b) are arranged on opposite sides of the transport path of the unit of intermediate stack (13) and packaging element (11d) in a mirror-symmetrical arrangement. Apparatus according to claim 16, characterized g ekennzeichnet that the rod-shaped carrier (25) for generating the overlapping rotational movement and oszil lierenden movement are each mounted in a concentric circle on obliquely arrange th turntables (23); or that the overlapping Drehbewe movement and oscillating movement of the driver (48 a, b, 49 a, b) respectively by separate mechanical means (47 or 45 a, b, 46 a, b) is generated. Apparatus according to claim 10, characterized in that means (16, 17) for supplying the packaging elements ( 11d) to the envelope evorrichtung (18a, b) are provided. Apparatus according to claim 18, characterized in that the supply means (16, 17) comprise a creasing device (50) for creasing the supplied packaging elements (11d).

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