EP3109193B1 - Method for producing collections of different printed products and device for carrying out the method - Google Patents

Description

TECHNICAL AREA

The invention relates to the field of further processing of precursors (in particular of printed products in the context of print finishing). It relates to a method and an apparatus for producing collections of printed products.

The invention further relates to a device for carrying out the method.

BACKGROUND OF THE INVENTION

The term "direct mailing" has long been known for activities in which advertising leaflets, brochures, flyers, printed sheets, samples and the like, as they were often used for advertising purposes as supplements of a newspaper or magazine attached (plugged), by several advertisers be collected in order to make a variety of collections, each containing a print 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.

Methods and apparatus are known in the art for holding stacked printed products or related products together by wrapping with other cohesive elements.

The EP 0952006 A2 shows a process for the production of printed mail, a wrapper, a device for the production of the wrapper as well as methods for the production of the wrapper. The application discloses the packaging of printed items by a perfect wrapping with a specially cut as a packaging material sheet of paper or plastic, so a specific packaging product. Such a single sheet is to be cut for example with a cutting unit and then folded, with folded edges folded edges can be connected to each other by means of adhesive.

The DE 41 31 277 C1 shows a method and a device suitable for this, with which a packaged goods can be combined with a special packaging blank. Shown is a device in which a packaged product passes from a first feed device to a second feed device. The second feed device has a lower belt, which is guided on one side over a roller. With a pressure device, which has a pinch roller and a guide element, an articulation of the package blank be effected to the roll to lead the package blank in different ways to the packaged goods. To get from the first to the second feed device, the packaged goods shown must have a relatively high structural rigidity.

The WO 201 2/084494 A2 shows a method for assembling a stack of loosely stacked precursors, the assembling of such precursors and an apparatus for producing such compilations. For this purpose, in a first step, the stack to be assembled from loosely superposed precursors is provided and in a second step a connecting element is attached to a stacking edge of the stack such that it overlaps the two outer precursors of the stack in an adhesive manner. This method provides a secure packaging for a variety of applications, but requires special fasteners.

The non-prepublished European patent application no. 15001321.7 was submitted on 05.05.2015 on behalf of Ferag AG and shows a device for the production of collections from a variety of different printed products. In each case, a part of the printed products is used as a packaging element, in which the other printed products are taken. In this way, handle units can be generated, which can be easily removed from a distributor manually from a transport container. In contrast to previously known methods for producing such collections, this method does not require any special additional packaging means, such as films or tapes. This can reduce the cost of manufacturing reduced by collections and reduce the amount of waste generated. The said patent application shows several methods and devices for the production of such collections. An embodiment of a suitable handling device has a brush roll with bristles bent in the direction of rotation, which deflects a section of a packaging element, which was previously brought partially under an intermediate stack (eg from publications), approximately at right angles to the top. This packaging section is bent back in a subsequent step on the intermediate stack as soon as the packaging element and the intermediate stack enter the space between two conveyor belts. Such a transfer device is suitable for a particular group of transfer products and intermediate stacks, but in some circumstances may be difficult to control with relatively thin and soft intermediate stacks in combination with thick and stiff envelopes. Another handling device shown in the aforementioned application has rod-shaped drivers, which are rotated about an axis of rotation oriented transversely to the direction of movement of the unit of intermediate stack and packaging element. These drivers additionally perform an oscillating movement transversely to the conveying direction, which may require a relatively complex and / or maintenance-intensive mechanism or control.

The WO 2008/074325 A1 shows a method for wrapping a stack of sheets, brochures or the like, in which the stacks are transported at a distance in a row on a transport path. By means of a special swivel wheel, a wrapping sheet is withdrawn from a stored sheet supply and vertically in a gap between two successive stacks positioned. Subsequently, the swivel wheel provides means that fold the sheet around the stack moving past. The complicated movement of the swivel wheel prevents a high processing speed of the stack.

PRESENTATION OF THE INVENTION

It is therefore an object of the invention to provide a method which enables a turn-over of first precursors with second precursors, which is suitable for a large number of different combinations of precursors and with relative - compared to the solutions known from the prior art simple devices can be performed reliably.

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 claims 1 and 15. Embodiments of the invention will become apparent from the dependent claims.

• Bereitstellen eines ersten Vorprodukts, das einen Kantenbereich aufweist;
• Bereitstellen eines zweiten Vorprodukts;
• Fördern des zweiten Vorprodukts in eine Umschlagestellung;
• Fördern des ersten Vorprodukts mit dem Kantenbereich voran gegen das sich in der Umschlagestellung befindende zweite Vorprodukt, wodurch ein Umschlagevorgang beim zweiten Vorprodukt eingeleitet wird.

An embodiment of a method for producing a collection of precursors by converting a second precursor to a first precursor according to the invention comprises the following steps, among others:

• Providing a first precursor having an edge region;
• Providing a second precursor;
• Conveying the second precursor to a transhipment position;
• Conveying the first precursor with the edge region in front against the second precursor located in the transshipment position, whereby a turnover process is initiated at the second precursor.

In one embodiment of the method, the second precursor is not a typical, specially provided packaging material (such as a film or a special paper sheet), as will be explained in more detail below. The second and first precursors may be similar in one embodiment of the method, whereby the second precursor, in contrast to the known from the prior art method is not a special or specific packaging product.

If desired, the second precursor may comprise a printed product having a fold, stitching or binding.

In one embodiment of the method, the second precursor comprises a printed product having a fold, a stitching or a binding, wherein the fold (or the stitching or the binding) is aligned in the Umschlagestellung substantially perpendicular to the edge region of the first precursor. In this way, inter alia, it can be prevented that the layers of a folded multilayer second precursor move relative to each other when grasping by hand.

In another embodiment of the method, the second precursor comprises a printed product having a fold, a stitching or a binding, wherein the fold (or the stitch or the binding) is aligned in the Umschlagestellung substantially parallel to the edge region of the first precursor. In this way, bumps or kinks in the fold, stapling or binding can be avoided.

For certain applications, according to one embodiment of the method, the second precursor is provided as a section of a paper or film web (hereinafter also referred to as "web").

In one embodiment of the method, the web is a single-ply web.

In another embodiment of the method, the web is a multilayer web, in particular a folded and / or folded web.

For certain applications, the paper or film web can be unwound from a roll.

In one embodiment of the method, the paper or film web is processed between the roll and the point at which the second precursor is in the turn-over position.

In one embodiment of the method, the web is printed on a printing machine and wound on a roll. Then the train will be back unwound from the roll and a second precursor is provided as a section of the web.

According to another embodiment of the method, the web is printed with a printing press and a second precursor is provided as a section of this web without the web being wound up on a roll therebetween.

In one embodiment of a method, the second precursor is cut from the web before it is conveyed to the transhipment position. As a result, second precursors can be promoted with particularly high speeds in the Umschlagestellung and thus the cycle times are shortened.

In another embodiment of a method, the second precursor is cut from the web after it has been conveyed to the transhipment position. In this way, the promotion and alignment of the second precursor can be simplified.

Particularly good results can be achieved if the web is cut in a buffer, e.g. a loop buffer - is stored. As a result, on the one hand particularly clean cut edges can be achieved. On the other hand, in this way the cutting process, or the device necessary for it, can be simplified.

According to one embodiment of a method according to the invention, the web is printed with a digital printing press. By using a digital press If necessary, a web can be produced with sections of different second precursors. In this way, for example, collections can be easily produced with individualized envelopes.

In one embodiment of such a method, the second precursors can be personalized advertising products whose contents are aimed at a specific recipient or a specific group of recipients. Such a second precursor may alternatively or in addition also include a personal addressing to a recipient or to a recipient group. A recipient group may e.g. be formed from the inhabitants of a geographical region, a city, a village or a district or a building.

The first and second precursors may be e.g. a collection of single-layer or multi-layered printed products of the same or different sizes. On or under or between the printed products, one or more samples may be arranged as needed. The first and / or the second precursor can also be used e.g. individual products, such as individual printed products.

The edge region may be, for example, a region of a leading edge of the first precursor. If the first precursor comprises a plurality of printed products, at least part of these printed products may be arranged such that they have a preferred edge and the preferred edges together form the edge region.

According to the invention, a reliable and robust method results when the first intermediate product is conveyed, at least with a partial surface lying on a conveyor table, against the second intermediate product located in the envelope position. Such a conveyor table can at least support the promotion of the first precursor against the second precursor present in the transhipment position by supporting it so that it retains its shape.

However, the conveyor table can also be designed so that it supports the initiation of the handling process or initiates this itself, as will be explained in more detail below. In this case, the conveyor table, the first precursor, e.g. hold and / or lead and / or accompany.

A transfer process that is particularly easy to control can be achieved if the conveyor table actively supports the transfer operation. For this purpose, the conveyor table can press, for example, with an edge against the present in the turnover position second precursor and deform this. This makes it possible, inter alia, to combine a large number of combinations of first and second precursors of different dimensions, weights and stiffnesses into collections, without the method or a device carrying out this method having to be substantially adapted to the nature of the preliminary products. The necessary effort for set-up operations can be minimized so that the production downtime can be reduced. According to one embodiment of the method according to the invention, the first precursor comprises a stack of individual printed products. Such printed products may be, for example, advertising leaflets, brochures, magazines, flyers or printed sheets. However, a corresponding stack may also contain other precursors, such as samples. The inventive method allows in comparison to the methods known from the prior art, the processing of stacks, which consist of a plurality of printed products or other objects with widely divergent dimensions. Stacks formed from such articles often have neither a regular cuboid shape nor well-known mechanical properties, making their processing impossible with many methods known in the art.

Good results can be achieved if the first precursor comprises a plurality of printed products having a preferred edge and the printed products are stacked such that their preferred edges together form a stack edge that represents the edge region. When manufactured according to such an embodiment of the method collections, the individual printed products when hand gripping the collection are particularly well secured against slipping out of the collection.

Particularly well handleable collections can be achieved if at least some of the individual printed products have a fold, a stitching or a binding and are stacked so that the folds or bonds form the edge region around which the second precursor turned becomes. In this way, among other things, the risk can be reduced that individual printed products fall by hand gripping the collection of the collection out. A folded and / or stapled and / or glued edge can also be called bundle. In another embodiment of this method, some of the printed products are to be arranged with their collar on the opposite side of the edge region in order to achieve a more uniform thickness of the first precursor.

In a further embodiment of the method can be taken as preferred edges of the printed products such edges, which are arranged on the opposite side of the collar. Such an edge can also be called a flower. If several or all printed products of the first precursor have such a flower, these printed products with the flowers can be stacked on top of one another so that the edge region is formed from the flowers. In another embodiment of this method, some of the printed products are to be arranged with their flower on the opposite side of the edge region in order to achieve a more uniform thickness of the first precursor.

In a further embodiment of the method, at least some of the printed products have frets and are arranged stacked so that the frets together form a stacking edge, which is arranged on the opposite side of the edge region of the first precursor, as will be explained in more detail below. Such an embodiment of the method may be advantageous, for example, if the first precursor has printed products differing from one another Dimensions, as this can be the thickness of the edge portion can be reduced, which favors the turning of the first precursor.

In a further embodiment of the method, at least some of the printed products have flowers and are arranged stacked so that the flowers together form a stacking edge which is arranged on the side of the first precursor opposite the edge region.

According to one embodiment of the invention, individual print products are provided in an upstream process step N, wherein the first precursor is formed from Nx (x = 1,2,3 ...) of the N individual print products and the second precursor is formed from the x remaining individual print products becomes. As a result, the costs per manufactured collection can be reduced and additional waste generated by packaging materials can be avoided. The first precursors and second precursors are therefore similar in such an embodiment, so that the second precursors do not represent special or specific packaging means.

In particular, in an embodiment of the method according to the invention, x = 1. By certain embodiments of the invention, which are explained in more detail below, it is also possible that the handled second precursor can be thicker and / or stiffer than the first precursor, without the handling process being difficult to control, as is partially the case in the prior art Technique known method is the case.

Particularly clean-handled collections can be achieved if the first precursor and the second precursor are moved through a stacking device after the introduction of the transfer operation, in which a first part surface of an outer surface of the second precursor and a first side of the first precursor, and a second part surface of Outer surface of the second precursor and a second side of the first precursor are placed together.

A particularly well-defined overturning can be achieved if the second precursor is temporarily clamped in a first and a second clamping region during the initiation of the turnover process and / or during the subsequent handling operation, so that the edge region of the first precursor is initiated during the initiation of the turnover process the Umschlagevorgang - lies between the first and second clamping region, as will be explained in more detail below.

In this way, the second precursor can be positioned particularly precisely to the first precursor.

Likewise, such unwanted slippage of the second precursor over the edge region of the first precursor when turning when needed can be largely prevented.

In addition, if required, a folded edge can also be brought into the second intermediate product - in particular if an edge of a conveyor table lies in front of the edge region of the first intermediate product when the transfer operation is initiated.

A further embodiment is characterized in that the first and the second partial surface are different, that is, the second intermediate product is not handled in half. If a collection produced in this way is laid flat with the larger upper surface facing upwards, then the weight of this larger partial surface prevents the folded-over second intermediate product from being unfolded. As a result, in certain cases (if desired) can be dispensed with further fastening means.

The necessary ratio between the first and second partial area, which prevents a refolding of the second precursor, is dependent on a plurality of properties of the first and / or second precursor-in particular on the stiffness and the weight of the second precursor and the thickness of the first precursor. In a further embodiment, the first partial area amounts to two thirds (2/3) and the second partial area amounts to one third (1/3) of the outer area. It has been found that such a relationship between first and second partial surfaces makes it possible to efficiently and stably prevent the unfolding of a large number of collections of different first and second precursors and, at the same time, collections produced by such a method can also be conveniently and safely handled manually. Thus, on a device which executes such a configuration of a method, different collections can be obtained generate, without the device must be significantly adapted to each of these.

Yet another embodiment of the method according to the invention is characterized in that the first precursor is conveyed in a conveying plane. As a result, in particular with relatively thick and / or unstable first precursors, this gentle conveyance can be achieved.

A particularly advantageous turnover of the second precursor can be achieved if the first precursor is conveyed in a conveying plane and the second precursor is oriented substantially perpendicular to the conveying plane of the first precursor at the initiation of the turnover process.

Depending on the nature of the second precursor, it may be advantageous if the second precursor is grooved prior to the turnover process to facilitate the turnover process. Multiple creasing or embossing is possible.

Alternatively or in addition, at least part of an outer surface of the second precursor may be moistened prior to the transfer operation to facilitate the transfer operation.

A further embodiment of the method according to the invention is characterized in that, prior to the initiation of the transfer operation, an adhesive is applied to one of the partial surfaces of the second precursor and / or to a surface of the first precursor covered by one of the partial surfaces is applied. As a result, in particular with relatively stiff second precursors and / or relatively thick first precursors, unintentional unfolding of the folded second intermediate product can be prevented.

According to a further embodiment of the method according to the invention, the second precursor can be temporarily held in the envelope position by a stop. By means of such an embodiment, the position of the transfer point can be influenced and / or a synchronization between the delivery of the first and the second precursors can be simplified.

A device according to the invention for carrying out such a method generally comprises a first conveying device for the second intermediate product, which conveys the second intermediate product into the envelope position. Likewise, it comprises a second conveying device for the first intermediate product, which feeds the first intermediate product for initiating the turnover process with an edge region ahead against the second intermediate product located in the turnover position.

In one embodiment of the device according to the invention, the first conveying device and the second conveying device are synchronized with one another.

In order to reduce the spatial dimensions of a device according to the invention and / or to be able to convey certain precursors better on curve sections and / or to reduce the speeds of the conveyor devices - respectively to increase the processing speed - the first and / or second precursors may also be shingled at least in sections Arrangement to be transported. A simple processing is possible if the precursors are arranged so scaled that the leading precursors are above the trailing precursors.

In one embodiment of the device according to the invention, the second conveying device may comprise at least two transport sections lying in one plane, between which an at least temporary conveying gap is left free, in which the second intermediate product is held in the folded position. Such an at least temporary conveying gap may be, for example, a gap in a belt conveyor.

An embodiment of a device according to the invention is characterized in that the envelope position extends through the at least temporary conveying gap. In other words, this can also be expressed in such a way that the transhipment position of the second intermediate product and the at least temporary delivery gap are aligned with one another so that the second intermediate product located in the transhipment position is located at least partially in the at least temporary delivery gap.

Particularly clean-handled collections can be achieved if the device has a stacking apparatus in which a first part of an outer surface of the second precursor and a first side of the first precursor, and a second part of the outer surface of the second precursor and a second side opposite the first side of the first precursor be put together. If necessary, such a piecing device also effect a targeted compression of the collections to be produced.

A particularly simple type of piecing apparatus can be achieved if it has a pair of rollers adjoining the at least temporary conveying gap, which conveys the first and second precursor in a temporarily clamping manner, as will be explained in more detail below. An abutment device may also have a plurality of such pairs of rollers.

A particularly gentle handling for the precursors as well as a use of the same piecing device for a variety of different precursors can be achieved if the rollers of a pair of rollers are elastically deformable in the radial direction and / or their axes of rotation can be reversibly pressed apart under exercise of a defined force. Such a device allows a sequential processing of very different precursors without the device having to be readjusted or retrofitted.

In one embodiment of a device according to the invention, at least one roller of a roller pair consists of a foam rubber and / or has a plurality of larger internal cavities which reduce the rigidity of the roller in the radial direction.

In a further embodiment of a device according to the invention, at least one of the rollers of a roller pair has a variable in the circumferential direction Radius on, as will be explained in more detail below. In this way, certain types of precursors can be handled very gently. Thus, for example, partial areas of the second precursor can be placed only at certain points on the first precursor in order not to damage any existing particularly sensitive printed products or samples.

Alternatively or in addition, a device according to the invention may comprise a clamping device which temporarily clamps the second precursor in a first and a second clamping region during the initiation of the turnover process and / or during the transfer operation, so that the edge region of the first precursor upon introduction of the transfer operation - Respectively during the Umschlagevorgang - lies between the first and second clamping region, as will be explained in more detail below.

According to one embodiment, the transport lines comprise belt conveyors. Such embodiments of the invention allow easy and safe transportation of many types of precursors and collections.

In particular, the transport sections may each comprise two belt conveyor systems formed from two belt conveyors spaced apart from one another perpendicular to the conveying direction, and the first and / or second intermediate products may be transported between the belts of the two belt conveyors.

A particularly large number of combinations of first and second precursors can be processed with the inventive design of a device in which the
second conveyor device has a conveyor table, which advances the first precursor for initiating the turnover process with an edge region ahead against the second intermediate product located in the envelope position. Such a conveyor table can support a first precursor on the one hand, whereby, for example, an unwanted lateral bending of the first precursor in an at least temporary conveyor gap can be prevented. This is especially advantageous if the first precursors are conveyed in a substantially horizontal direction through an at least temporary conveying gap. A conveyor table may also support the initiation of the handling operation, as will be further explained below. A device according to the invention may also have a plurality of conveyor tables. A conveyor table can be configured, for example, as a plate or as an assembly of several plates. Alternatively or in addition, a conveyor table may have a rod-shaped or bow-shaped structure.

In particular, for the processing of particularly sensitive precursors can have a conveyor table on a surface with a particularly low coefficient of adhesion and / or sliding friction. As a result, relative movements between the precursors and the conveyor table can be promoted, which will be explained in more detail below. For example, certain areas which come into contact with the first and / or second precursor may be e.g. be made of polytetrafluoroethylene or materials with similar good sliding properties.

In a further embodiment of a device according to the invention, a conveyor table can at least temporarily hold and convey a first intermediate product in a clamping manner.

Alternatively or in addition, a conveyor table can grab and / or feed a first precursor at least temporarily with a vacuum suction gripper.

In particular, a conveyor table can be connected to a drive, which allows a recurring translational movement of the conveyor table in the conveying direction of the first precursor.

A particularly simple drive synchronized simultaneously with the second conveyor may be e.g. be achieved when the second conveyor comprises a belt conveyor and the conveyor table is operatively connected via a connecting rod mechanism with the belt conveyor.

A safe handling of very stiff or heavy second precursors can be achieved if the conveyor table has an edge that supports the handling process of the second precursor. Such an edge may be arranged so that it presses against the second precursor during a transfer operation before the first precursor and / or simultaneously with the first precursor and / or after the first precursor. If the edge presses against the second precursor before and / or simultaneously with the first precursor, it is also possible to process thin, flexible first precursors (eg individual sheets) without these being folded, folded or compressed during the turnover process.

In one embodiment of the device according to the invention, the edge is arranged to the first precursor such that the edge reaches the second precursor clearly ahead of time and thereby initiates the turnover process.

In particular, the device can be set up so that the second precursor is folded by a piecing device, while the first precursor is arranged trailing relative to the fold. In this way, the second precursor can be folded very clean. If desired, the first precursor can be pushed further into the second (converted) precursor after folding.

Another embodiment of the device according to the invention is characterized in that the first conveying device is associated with a stop, which temporarily holds the second precursor in the turn-up position, as will be explained in more detail below. In this way, a well-defined turnover position, and thus a consistent in all produced collections Umschlageergebnis be ensured in a simple manner. If necessary, such a stop can also be adjustable or displaceable, with which second precursors can be held in different transposition positions.

Particularly simple devices can be achieved if the second precursor is held in a position that is substantially vertical relative to the conveying plane of the first conveying device.

In order to prevent a reopening of the transferred second precursors, a device according to the invention may comprise a gluing device which glues the first and / or the second precursor before the initiation of the transhipping process. Good results can be obtained e.g. using removable adhesives - e.g. as glue spots and / or glue beads.

A further embodiment of a device according to the invention is characterized in that it has a moistening device for at least partial moistening of the second precursor before the initiation of the transfer operation. By such moistening about the inherent rigidity of a paper existing second precursor can be reduced in the region of the transfer point, and thus the transfer operation can be supported. Such moistening can take place, for example, via nozzles or at least partially wetted rollers, or rollers.

Alternatively or in addition, the device may comprise a creasing device for culling the second precursor. By means of such a creasing device, for example, one or more transverse grooves (or embossments) can be introduced into the two precursor before overturning, whereby the transfer can be assisted. Likewise, if desired, a specific structure can be brought into the second precursor in the region of the cover edge, whereby a defined turnover result can be achieved.

According to one embodiment of a device according to the invention, means for providing a paper and / or film web (web) are assigned to the first conveying device.

A particularly space-saving device can be achieved if it comprises means for feeding a second precursor wound up as a section of a web on a roll.

According to a further embodiment of a device according to the invention, the first conveying device is assigned a cutting device for cutting off the second intermediate product from the paper web or the film web. This cutting device can be arranged in the conveying path of the first conveying device and be set up so that it cuts off the second precursor from the paper or a film web. In this way, the second precursor of the device can be supplied as a web. Thereby, as already described, in a simple manner, if necessary, e.g. individualized collections are produced.

Good results can be achieved if the cutting device has a laser and / or a static and / or a rotating and / or a movable in the conveying direction of the second precursor knife.

In order to improve the promotion of certain types of second precursors, the cutting device may be arranged in one embodiment of the method so that the second precursor is cut from the paper or the film web before it is in the conveyor gap.

Alternatively, a cutting device may be arranged so that the second precursor is cut from the paper or film web when at least partially in the conveying gap. In this way, in certain second precursors, a particularly accurate promotion to the transhipment position can be achieved.

BRIEF EXPLANATION OF THE FIGURES

Fig. 1-7

in einer schematischen Seitenansicht ein erstes Ausführungsbeispiel einer sich im Betrieb befindenden Umschlagevorrichtung, zu sieben aufeinanderfolgenden Zeitpunkten dargestellt;

Fig. 8

in einer schematischen Seitenansicht ein zweites Ausführungsbeispiel einer Umschlagevorrichtung;

Fig. 9-12

in einer schematischen Seitenansicht ein durch eine Klemmvorrichtung durchgeführter Klemmvorgang bei der Einleitung des Umschlagevorgangs;

Fig. 13

in einer schematischen Seitenansicht eine weitere Ausgestaltung eines erfindungsgemässen Verfahrens;

Fig. 14

in einer schematischen Seitenansicht eine weitere Ausgestaltung eines erfindungsgemässen Verfahrens;

Fig. 15

in einer schematischen Seitenansicht eine weitere Ausgestaltung einer Vorrichtung zur Ausführung eines erfindungsgemässen Verfahrens;

Fig. 16

in einer schematischen Seitenansicht eine weitere Ausgestaltung einer Vorrichtung zur Ausführung eines erfindungsgemässen Verfahrens.

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

Fig. 1-7

in a schematic side view of a first embodiment of an operating in operation envelope device, shown at seven successive times;

Fig. 8

in a schematic side view of a second embodiment of an envelope device;

Fig. 9-12

in a schematic side view of a performed by a clamping device clamping operation in the initiation of the turnover process;

Fig. 13

in a schematic side view of a further embodiment of an inventive method;

Fig. 14

in a schematic side view of a further embodiment of an inventive method;

Fig. 15

in a schematic side view of a further embodiment of an apparatus for carrying out a method according to the invention;

Fig. 16

in a schematic side view of a further embodiment of an apparatus for carrying out a method according to the invention.

WAYS FOR CARRYING OUT THE INVENTION

FIGS. 1 to 7 show in schematic representations an embodiment of an inventive device for carrying out a method according to the invention, at different times of the method. In the apparatus shown, second precursors 6 (represented by broken lines) are conveyed in succession in a first conveying device 17. The first conveying device 17 comprises a plurality of belt conveyor systems formed from spaced-apart belt conveyors, wherein the second intermediate products 6 are transported clamped between the belts of the belt conveyors. The second precursors 6 are brought from a horizontal conveying direction via a curve in a vertical conveying direction (shown schematically with a curved arrow). The illustrated second precursors 6 are folded products in the illustrated method whose fold is parallel to the conveying direction (not shown in detail).

In a second conveying device 12, the first precursors 1 are likewise conveyed in succession in a conveying plane 24. The first precursors 1 are conveyed with an edge region 2 transversely to the conveying direction (shown schematically with an arrow). The second conveying device 12, like the first conveying device 17, comprises a plurality of belt conveyor systems 16a-d formed from spaced-apart belt conveyors, wherein the first intermediate products 1 are transported between the belts 20a-d of the belt conveyors 16a-d. Between a first transport path 13a formed from first belt conveyors 16a, 16b and a second transport path 13b formed from second belt conveyors 16c, 16d there is an at least temporary conveying gap 14, in which no continuous transport of the first precursors 1 takes place. In the area in front of the at least temporary conveying gap 14, a conveyor table 15 is arranged, which in the embodiment shown adjoins the first transport path 13a.

Im in Fig. 1 shown process state, the conveyor table 15 is in a retracted state, so that the second precursor 6 through the at least temporary conveyor gap 14 can be conveyed vertically downwards in a substantially perpendicular to the conveying plane 24 of the first precursor 1 aligned Umschlagestellung, in Fig. 2 is shown. As in Fig. 2 illustrated, the device has a stop 11, which limits the promotion of the second precursor 6 downstream and thus temporarily holds the second precursor 6 in the turn-over position. The stop 11 displaceable along the conveying direction of the second precursor 6 (indicated by a double arrow), so that so different Umschlagestellungen can be set.

Also, there is a gluing device 21 in the region of the first transport path 13a, which can apply glue spots to the first precursors 1 as needed.

The in the FIGS. 1 to 7 shown conveyor table 15 has an edge 9, and is so synchronized with the first and second conveyor lines 17, 12 that it performs a translational movement in the conveying direction of the first precursor 1 as soon as the edge portion 2 of the first precursor 1 along the conveying direction of the first precursor. 6 approximately in the same position as the edge 9 is (see. Fig. 2 ). This translational movement essentially corresponds to the conveying speed of the first precursor 1, as a result of which this and the conveying table 15 move simultaneously in the conveying plane and press simultaneously against the second precursor 6, which is in the reversing position, simultaneously with the edge region 2 or the edge 9. as in Fig. 2 is indicated.

As in Fig. 3 shown, thereby a turnover process is initiated. Since the first precursor 6 lies on the conveyor table 15, it is supported in the vertical direction in the region of the at least temporary conveying gap 14. This prevents bending of the first precursor 1 in the vertical direction due to its own weight. Likewise, the edge 9 pressing simultaneously against the edge region 2 against the second precursor 6 prevents the first precursor 1 from moving in the conveying direction is compressed, or kinked. The edge 9 thus supports the turnover process of the second precursor 6.

The in the FIGS. 1 to 8 In addition, the device shown has a stacking device 18, which comprises a pair of rollers 19a, 19b with axes of rotation arranged parallel to one another and parallel to the edge region 2. The two rollers 19, 19b have a foam rubber-made area with several larger internal cavities, whereby their stiffness in the radial direction is relatively low, whereby they are compressible in the radial direction. The rollers 19a, 19b also have a circumferentially variable radius, whereby they could also be referred to as segment rollers. The upper roller 19a shown rotates counterclockwise while the lower roller 19b rotates clockwise (indicated by curved arrows, respectively). These rotational movements are coordinated or synchronized to the movement of a first intermediate product 1 located in the at least temporary conveying gap 14, that a first partial surface 7 an outer surface of the second precursor 6 and a first side 4 of the first precursor 1, and a second partial surface 8 and one of the first side 4 opposite second side 5 of the first precursor 1 are placed against each other, as shown in Fig. 4 will be shown. The rollers 19a, 19b are also arranged so that they can promote the first and second precursor 1, 6 temporarily clamped, as also in Fig. 4 is illustrated. During this clamping promotion, the first and second precursors 1, 6 are placed even closer together, as in the FIGS. 5 to 7 is shown schematically. The translational movement of the conveyor table 15 is matched with the adjoining device 18 so that it is not clamped between the rollers 19a, 19b will, as in Fig. 4 will be shown. The conveyor table 15 can, as in Fig. 4 shown, the first precursor 1 still temporarily supported in the vertical direction, while this is conveyed together with the second precursor 6 by the adjoining device 18 by clamping to the second transport path 13b out (shown schematically by the arrow). The conveyor table 15, meanwhile, contracts against the conveying direction of the first precursor 1 into the in Fig. 5 shown starting position to later (see. Fig. 7 ) zuzufördern a following further first precursor 1 against another second precursor 6.

Fig. 8 shows a further embodiment of an inventive device. This additionally has a grooving device 22 arranged in the region of the first conveying device 17, which essentially consists of two counter-rotating rollers in the embodiment shown, as in FIG Fig. 8 contained detail view of the creasing device 22 can be seen. The axes of rotation of the two rollers are transverse to the conveying direction of the second precursors 6, which are passed between the rollers and provided by these with a groove. For this purpose, a strip-like elevation is arranged on the upper of the two illustrated rollers, and a corresponding recess is arranged on the lower one. The rollers can also be installed vice versa. Also shown in the Fig. 8 a juxtaposition device 18, the - deviating from Fig. 1-7 - Includes rollers 19 a, 19 b with constant radius. Instead of rollers 19a, 19b, rollers with such a constant radius can be used. Such rollers (or rollers) are also applicable in devices without Rilliervorrichtung 22, such as in the FIGS. 1 to 7 shown device.

The FIGS. 9 to 12 schematically show an embodiment of a clamping device, which can temporarily clamp the second precursor 6 before and during the transfer operation at a first and a second clamping portion 25, 26. This can be prevented if necessary, that the second precursor 6 uncontrollably slips over the edge portion 2 of the first precursor 1 at the initiation of the turnover process, whereby the Umschlageergebnis would be impaired. Such a mostly undesirable behavior can occur, for example, if a part of the second precursor is still being clamped by the first conveying device 17 during the initiation of the handling process - ie is restricted in its movement - and another part is virtually free in the at least temporary conveying gap 14 located. The illustrated embodiment of a clamping device comprises a pinch roller 27, which is connected via a belt 29 to a brake roller 32. The belt 29 is held by a tension roller 28 in a tensioned state. The pinch roller 27 is pivotally supported by a pivot arm 31 about a pivot axis 30, as indicated by the bent arrows.

As soon as the second precursor 6 is in the transhipment position (cf. Fig. 10 ), the pivot arm 31 is rotated counterclockwise about the pivot axis, whereby the pinch roller 27 presses the second precursor 6 in a second clamping portion 26 to an abutment 34 and the second precursor 6 clamps it. At the same time, the second precursor 6 is clamped in front of the first conveying device 17 in a first clamping region 25. By the clamping in the first and second clamping region 25, 26 are both located above the edge portion 2, as well as below this held part of the second precursor 6 held with a certain force. As a result, slippage of the second precursor 6 over the edge region 2 of the first precursor 1 during the in Fig. 11 shown initiation of the Umlegevorgangs prevented.

Once the first and second precursor 1, 6 are clamped by the rollers 19a, 19b of the piecing device 18 (see. Fig. 12 ), the pivot arm 31 pivots with the pinch roller 27 again in the clockwise direction away from the second clamping portion 26, whereby the second precursor 6 is no longer clamped there. A sliding movement between the first and second precursor 1, 6 is prevented at this time by the piecing device 18.

The Figures 13 and 14 show an apparatus according to the invention for carrying out a method according to the invention with first precursors 1, 1 ', 1 ", which are each stacks of different printed products 35, 35', 35".

This in Fig. 13 On the right-hand side (leading) stacked first precursor 1 is formed from a lower large printed product 35 and an upper medium-sized printed product 35 '. The printed products 35, 35 'each have a fold (or waistband) 2, 2' and are stacked so that their folds / collars 2, 2 'form a stacking edge, which represents the edge region 2, 2'. This in Fig. 13 The illustrated middle stacked first precursor 1 'is formed from a lower major printed product 35, a middle medium sized printed product 35' and an upper small printed product 35 ". The printed products 35, 35 ', 35" each have a fold 2. 2 ', 2 "on and are also stacked so arranged that their collars 2, 2 ', 2 "form a stacking edge, which represents the edge region 2, 2', 2". That in the Fig. 13 The stacked first precursor 1 "depicted on the left is constructed in the same way as the first precursor 1 shown on the right Fig. 13 constructed preliminary products 1, 1 ', 1 "allow safe turning over of a second precursor 6 by each all to be wrapped printing products 35, 35', 35". In this way, it is possible to prevent individual printed products 35, 35 ', 35 "from falling out of the collection when grasping a resulting collection by hand.

This in Fig. 14 On the right-hand side (leading) stacked first precursor 1 is likewise formed from a lower large printed product 35 and an upper medium-sized printed product 35 '. The printed products 35, 35 'also each have a fold (or waistband) 2, 2', but are arranged stacked so that their flowers form a stack edge. The edge region 2 is formed by the collar 2 of the lower printed product 35. The shown middle stacked first precursor 1 'is also formed from a lower large print product 35, a middle medium print product 35' and an upper small print product 35 ". Again, the printed products 35, 35 ', 35" are stacked such that their flowers form a stack edge. However, the edge portion 2 is formed by the collar 2 of the lower printed product 35. That in the Fig. 14 The stacked first precursor 1 "depicted on the left is again constructed in the same way as the first precursor 1 shown on the right, a method with such (as in FIG Fig. 14 shown) stacked first precursors 1, 1 ', 1 "may be advantageous in order to convert precursors 1, 1', 1" with a relatively large total thickness (or large maximum stack height) can. Because such Turnover is simplified in addition to the folded-over second precursors 6 (not shown) have the flowers formed stack edge and the folded second precursor a well-defined outer shape.

The Fig. 15 shows a further embodiment of an inventive device for carrying out a method according to the invention. The second precursors 6 are provided here as portions of a web 25. This web 25 was printed in a preceding (not shown) printing process and then wound on a roll 26. This roller 26 is assigned to the first conveyor line 17 in the apparatus shown. The web 25 is unwound from the roll 26, and then the second precursors 3 are separated by a cutting device 27 of the web 25 and conveyed via the conveyor line 17 in the Umschlagestellung.

The Fig. 16 shows another embodiment of an inventive device for carrying out a method according to the invention, in which the second precursors 6 as in in Fig. 15 also be provided as portions of a web 25 on a roll 26. Unlike in Fig. 15 However, the second precursors 6 are here only separated by a cutting device 27 of the web 25 when they are already in the transhipment position or are at least partially in the conveyor gap 14.

Claims (32)

1. A method for producing a collection (23) of pre-products (1, 6) by wrapping a second pre-product (6) around a first pre-product (1), comprising the steps:

   a. providing a first pre-product (1) that has an edge region (2);

   b. providing a second pre-product (6);

   c. conveying the second pre-product (6) into a wrapping position;

   d. conveying the first pre-product (1), with the edge region (2) in front, against the second pre-product (6) present in the wrapping position, as the result of which a wrapping operation is initiated on the second pre-product (6),

   characterized in that the first pre-product (1) is conveyed, at least with a sub-area resting on a conveyor table (15), against the second pre-product present in the wrapping position.
2. The method according to Claim 1, characterized in that the conveyor table (15) actively assists in the wrapping operation.
3. The method according to Claim 2, wherein the conveyor table (15) presses with an edge (9) against the second pre-product (6) present in the wrapping position, thereby deforming it.
4. The method according to one of the preceding claims, characterized in that the second pre-product (6) is provided as a section of a paper web or film web (25).
5. The method according to Claim 4, characterized in that the paper web or film web (25) is unwound from a roll (26).
6. The method according to one of Claims 4 or 5, characterized in that the paper web or film web (25) is processed between the roll (26) and the location at which the second pre-product (6) is present in the wrapping position.
7. The method according to one of the preceding claims, characterized in that in an upstream method step, N individual printed products (10) are provided, the first pre-product (1) being formed of N - x (x = 1, 2, 3...) of the N individual printed products (10), and the second pre-product (6) being formed of the x remaining individual printed products (10).
8. The method according to Claim 7, characterized in that x = 1.
9. The method according to one of the preceding claims, characterized in that after the initiation of the wrapping operation, the first pre-product (1) and the second pre-product (6) are moved through a placing-together device (18), in which a first sub-area (7) of an outer surface of the second pre-product (6) and a first side (4) of the first pre-product (1), and a second sub-area (8) of the outer surface of the second pre-product (6) and a second side (5) of the first pre-product (1), are placed against one another.
10. The method according to one of the preceding claims, characterized in that the first pre-product (1) is conveyed in a conveying plane (24).
11. The method according to Claim 10, characterized in that during the initiation of the wrapping operation, the second pre-product (6) is oriented essentially perpendicularly with respect to the conveying plane (24) of the first pre-product (1).
12. The method according to one of the preceding claims, characterized in that the second pre-product (6) is grooved prior to the wrapping operation to facilitate the wrapping operation.
13. The method according to one of the preceding claims, characterized in that at least a portion of an outer surface of the second pre-product (6) is moistened prior to the wrapping operation to facilitate the wrapping operation.
14. The method according to one of the preceding claims, characterized in that the second pre-product (6) is temporarily held in the wrapping position by a stop (11).
15. A device for carrying out a method according to one of the preceding claims, comprising:

    a. a first conveyor device (17) for the second pre-product (6), which conveys the second pre-product (6) into the wrapping position;

    b. a second conveyor device (12) for the first pre-product (1), which conveys the first pre-product (1), with an edge region (2) in front, against the second pre-product (6) present in the wrapping position to initiate the wrapping operation;

    characterized in that the second conveyor device has a conveyor table (15), which conveys the first pre-product with an edge region in front against the second pre-product present in the wrapping position, to initiate the wrapping operation.
16. The device according to Claim 15, characterized in that the second conveyor device (12) comprises at least two transport sections (13a, 13b) that are situated in one plane, and between which an at least temporary conveyor gap (14) is left free, in which the second pre-product (6) is held in the wrapping position.
17. The device according to Claim 16, characterized in that the wrapping position extends through the at least temporary conveyor gap (14).
18. The device according to one of Claims 15 to 17, characterized in that the device has a placing-together device (18), in which a first sub-area (7) of an outer surface of the second pre-product (6) and a first side (4) of the first pre-product (1), and a second sub-area (8) of the outer surface of the second pre-product (6) and a second side (5) of the first pre-product (1), situated opposite the first side (4), are placed against one another.
19. The device according to Claim 18, characterized in that the placing-together device (18) comprises a roller pair (19a, 19b) which adjoins the at least temporary conveyor gap (14) and which conveys the first and second pre-products (1, 6) in a temporarily clamped manner.
20. The device according to one of Claims 16 to 19, characterized in that the transport sections (13a, 13b) comprise belt conveyors (16a-d).
21. The device according to Claim 20, characterized in that the transport sections each have belt conveyor systems formed of two belt conveyors (16a/b, 16c/d) spaced apart from one another perpendicular to the conveying direction, and the first and/or second pre-product (1, 6) are/is transported clamped between the belts (20a-d) of the two belt conveyors (16a/b, 16c/d).
22. The device according to one of Claims 15 to 21, characterized in that the conveyor table (15) is connected to a drive that allows a recurring translational movement of the conveyor table (15) in the conveying direction of the first pre-product (1).
23. The device according to one of Claims 15 to 22, characterized in that the conveyor table (15) has an edge (9) that assists in the wrapping operation for the second pre-product (6).
24. The device according to Claim 23, wherein the conveyor table (15) presses with an edge (9) against the second pre-product (6) present in the wrapping position, thereby deforming it.
25. The device according to one of Claims 15 to 24, characterized in that a stop (11) is assigned to the first conveyor device (17), which temporarily holds the second pre-product (6) in the wrapping position.
26. The device according to one of Claims 15 to 25, characterized in that the second pre-product (6) is held in a wrapping position that is essentially perpendicular relative to the conveying plane (24) of the first conveyor device (12).
27. The device according to one of Claims 15 to 26, characterized in that the device has a moistening device for at least partially moistening the second pre-product (6) prior to the initiation of the wrapping operation.
28. The device according to one of Claims 15 to 27, characterized in that the device has a grooving device (22) for grooving the second pre-product (6).
29. The device according to one of Claims 15 to 28, characterized in that means for providing a paper web or film web (25) are assigned to the first conveyor device (17).
30. The device according to Claim 29, characterized in that a cutting device (27) is assigned to the first conveyor device (17), for cutting the second pre-product (6) from the paper web or film web (25).
31. The device according to one of Claims 15 to 30, characterized in that the cutting device (27) is arranged in such a way that the second pre-product (6) is cut from the paper web or film web (25) before the second pre-product is situated in the conveyor gap (14).
32. The device according to one of Claims 15 to 30, characterized in that the cutting device (27) is arranged in such a way that the second pre-product (6) is cut from the paper web or film web (25) when the second pre-product is situated at least partially in the conveyor gap (14).

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