CH711135B1 - Method and device for producing a printed product. - Google Patents

Abstract

Method for producing printed products, each printed product (P1, P2) each having at least one booklet (H1, H2) each consisting of at least two printed signatures, namely at least one full signature (A1, A2, A3, C1, C2) with a first number Printed pages and at least one partial signature (B1-1, B2-1) with a second number of printed pages, with at least the following steps: continuous delivery of a signature stream (12) from printed signatures, namely from printed full signatures (A1, A2, A3, C1, C2 ) and from printed partial signatures (B1-1, B2-1), in the direction of a collecting device, the order of the signatures in the signature stream (12) partially deviating from the order of the signatures required in the area of the collecting device; Extracting at least one partial signature (B2-1) from the signature stream (12) upstream of the collecting device, which differ in terms of their sequence in the signature stream (12) from the sequence of signatures required in the area of the collecting device; Intermediate storage of the or each partial signature (B2-1) that is ejected from the signature stream (12) in the area of a storage device (13); Introducing the or each partial signature (B2-1) temporarily stored in the area of the storage device (13) into the signature stream (12 ') upstream of the collecting device in accordance with the sequence, timing and / or number of signatures required in the area of the collecting device; Collecting the signatures belonging to each booklet (H1, H2) in the area of the collecting device (19) and further processing them into at least cross-folded booklets.

Description

The invention relates to a method for producing a printed product. Furthermore, the invention relates to a device for producing a printed product.

Fig. 1 illustrates a method known from the prior art for producing printed products. 1, a plurality of printed products P are produced, each printed product P having a single booklet H in FIG. 1, and each booklet H being composed of three printed signatures A, B, C. 1 shows an example of two printed products P1 and P2 produced, each of which comprises a booklet H1 or H2 each consisting of three printed signatures A1, B1, C1 or A2, B2, C2, the signatures A1, B1, C1 or A2, B2, C2 of each booklet H1, H2 and thus each printed product P1, P2 are folded in the middle.

1, the procedure for producing the printed products P1, P2 is such that a printing material web 10 is first printed with printed pages 11. The signatures A1, B1, C1, A2, B2, C2 are separated from the printing material web 10 by cross-cutting, as a result of which a signature stream 12 consisting of individual signatures is provided. The cross-cutting of the printed substrate 10 takes place with the same section length, so that all signatures A1, B1, C1, A2, B2, C2 have an identical section length. In the exemplary embodiment shown, each of the signatures A1, B1, C1, A2, B2, C2 bears a total of eight printed pages 11, namely four printed pages 11 on a front side and a further four printed pages 11 on a rear side of the respective signature. 1, the signatures belonging to a booklet H1 or H2 are printed on the printing material web 10 in a sequence corresponding to the corresponding booklet H1, H2, that the signatures A1, B1, C1 or A2 belonging to the respective booklet H1, H2 , B2, C2 in the signature stream 12 have an order that matches the order of the signatures in the respective booklet H1, H2.

The signatures of the signature stream 12 of FIG. 1 can therefore be collected in the area of a collecting device of a folding unit or folder in their order occurring in the signature stream 12 in order to include in the area of the collecting device the respective belonging to the respective booklet H1 or H2 Collect signatures A1, B1, C1 or A2, B2, C2 and then process them further by folding them into booklet H1 or H2 or printed product P1 or P2 using a cross-folding device of the folding unit.

The procedure described with reference to Fig. 1 for producing a printed product is basically known from EP 1209 000 B1.

As already explained above with reference to FIG. 1, in the method known from the prior art, all the signatures to be combined into a booklet H1 or H2 must have an identical section length, so that then only in the respective booklet H1 or H2 a page jump on printed pages is possible, which corresponds to the number of printed pages on the signatures. In the exemplary embodiment shown in FIG. 1 of a method known from the prior art, this means that either booklets H1, H2, each with three signatures and then twenty-four printed pages, can be produced as shown, or alternatively to the extent of the page jump of a signature, that is in the case of a page jump of eight printed pages, booklets with eight printed pages or one signature, booklets with sixteen printed pages or two signatures, booklets with thirty-two printed pages or four signatures, etc. This is irrespective of whether printed pages in tabloid format or printed pages are printed on the signatures are printed in broadsheet format because the realizable page jump is linked to the same section length of the signatures. It follows from this that the variability of print products to be produced is restricted with the method known from the prior art. For example, no booklets and thus printed products can be produced which have a different page jump than that which is predetermined by the number of printed pages per signature with a fixed section length.

There is a need to produce booklets and thus printed products with greater variability in terms of possible page jumps.

Proceeding from this, the present invention seeks to provide a novel method and an apparatus for producing a printed product.

[0009] This object is achieved by a method for producing a printed product according to claim 1. The method according to the invention relates to a method for producing printed products, each printed product each having at least one booklet of at least two printed signatures, namely at least one full signature with a first number of printed pages and at least one partial signature with a second number of printed pages. The method according to the invention comprises at least the following steps: continuous conveying of a signature stream from printed signatures, namely a signature stream that includes printed full signatures and printed partial signatures, in the direction of a collecting device, the order of the signatures in the signature stream being partially required in the area of the collecting device Order of signatures differs; Extracting at least one partial signature from the signature stream upstream of the collecting device, the order of which in the signature stream differs from the order of the signatures required in the area of the collecting device; Intermediate storage of the or each at least one partial signature that has been removed from the signature stream in the area of a storage device; Introducing the or each partial signature temporarily stored in the area of the storage device into the signature stream upstream of the collecting device in accordance with the sequence, timing and / or number of signatures required in the area of the collecting device; Collecting the signatures belonging to each booklet in the area of the collecting device and further processing them into at least cross-folded booklets; if necessary, d. H. in the event that a printed product consists of several booklets, combining the booklets belonging to each printed product.

Upstream here means seen against the transport direction of the product stream and thus seen in the transport direction spatially arranged in front of a device; 6, for example, the cross-cutting device or the storage device are arranged upstream of the collecting device.

Downstream means thus seen in the transport direction of the product stream and thus seen in the transport direction spatially arranged after a device; 6, for example, the storage device is arranged downstream of the cross-cutting device or, for example, the collecting device is arranged downstream of the storage device.

With the invention, printed products can be produced with greater variability in terms of the feasible side jumps, without the need to eject partial signatures as waste. This is achieved by providing a signature stream consisting of full signatures and partial signatures and by temporarily storing those partial signatures of the signature stream which have a sequence within the signature stream that deviates from the sequence required at the collecting device. Partial signatures temporarily stored in the area of the storage device are fed back into the signature stream in such a way that the signatures of the respective booklet and thus printed product have a correct sequence, timing and / or number at the collecting device.

[0013] The signatures belonging to a booklet are preferably collected on a collecting device designed as a collecting cylinder, the circumference of the collecting cylinder being designed for a section length or for an integral multiple of the section length of the full signatures. Signatures removed from the signature stream upstream of the collecting device are temporarily stored on a storage device designed as a storage cylinder, the circumference of the storage cylinder being designed for a section length or for an integer multiple of the section length of the partial signatures.

The collecting cylinder is preferably designed for a section length of the full signatures, preferably for the maximum possible section length of a full signature, and the storage cylinder for a section length of a partial signature, preferably for the maximum possible section length of a partial signature, since this configuration provides maximum variability in the product sequence and thus allowing a particularly flexible production of booklets and thus printed products.

According to an advantageous further development, a partial signature buffered in the area of the storage device is introduced into the signature stream upstream of the collecting device in such a way that the respective partial signature is positioned below or above a full signature, namely in such a way that it is seen in the transport direction in the area of the through the holding elements edges of the collecting device to be gripped, for example the leading edge or the region of the leading edge or a trailing edge or the region of the trailing edge, edges which lie towards one another are congruent. It depends on the configuration of the collecting and / or folding device which edge is relevant when viewed in the transport direction. In the exemplary embodiments shown in FIGS. 6 and 7, this is the front edge. This can ensure that, despite the partial signatures with different section lengths and despite the removal and reinsertion of partial signatures into the signature stream, the signatures of the collecting device are always fed in time, so that the signatures can be processed without problems in the area of the collecting device.

The device according to the invention for producing a printed product is defined in claim 9.

[0017] Preferred developments of the invention result from the subclaims and the following description. Exemplary embodiments of the invention are explained in more detail with reference to the drawing, without being restricted to this. It shows: <tb> Fig. 1: <SEP> is a diagram to illustrate a method known from the prior art for producing a printed product; <tb> Fig. 2 <SEP> is a diagram to illustrate a first method according to the invention for producing a printed product; <tb> Fig. 3 <SEP> a diagram for further clarification of the first method according to the invention for producing a printed product; <tb> Fig. 4 <SEP> is a diagram to illustrate a second method according to the invention for producing a printed product; <tb> Fig. 5 <SEP> is a diagram for further clarification of the second method according to the invention for producing a printed product; <tb> Fig. 6 <SEP> is a block diagram of a device according to the invention for producing a printed product; and <tb> Fig. 7 <SEP> is a block diagram of a further device according to the invention for producing a printed product.

[0018] The present invention relates to a method for producing a printed product. Furthermore, the present invention relates to an apparatus for performing the method.

With the inventive method and the inventive device, printed products P are to be produced, each printed product P having at least one booklet H each having at least two signatures printed with printed pages, namely at least one full signature with a first section length and a first number of printed pages and at least a partial signature with a second section length and a second number of printed pages, the section length and number of printed pages of a partial signature preferably corresponding to half the section length and printed pages of a full signature, a partial signature, the section length and number of printed pages of half the section length and printed pages Full signature corresponds, also referred to as a half signature.

Fig. 2 shows a first embodiment for the production of printed products P1, P2, wherein in Fig. 2 each printed product P1, P2 comprises a single booklet H1, H2, each with three printed signatures, namely a booklet H1 or H2, which in Fig. 2 comprises two full signatures A1, C1 or A2, C2 and a half signature B1-1 or B2-1.

In the exemplary embodiment shown in FIG. 2, a printing material web 10 is printed with a plurality of printed pages 11 in order to produce such printed products P. The signatures A1, B1-1, B1-2, C1, A2, C2, A3 are separated from this printing material web, which is printed with printed pages 11, in FIG. 2 the cross cutting and thus the separation of the signatures with different or variable section lengths takes place, namely in such a way that the separated signatures A1, C1, A2, C2, A3 are full signatures with a first section length and a first number of printed pages - in the exemplary embodiment of FIG. 2 with eight printed pages in each case the signatures B1-1 and B1-2 are partial signatures, namely half-signatures, with a second section length and a second number of printed pages, each of which corresponds to approximately half of the full signatures, so that in the exemplary embodiment in FIG. 2 the partial signatures B1- 1 and B1-2 each have four printed pages.

The separation of the signatures with different section lengths is basically already known from DE 10 2006 014 218 A1 or from DE 10 213 978 A1.

Fig. 2 visualizes a signature stream 12 from the printed signatures A1, B1-1, B2-1, C1, A2, C2, whereby, as can also be seen in Fig. 2, the order of these signatures in the signature stream 12 partially from the required order of the signatures in the booklet H1, H2 to be produced differs. The signature stream 12 is continuously conveyed in the direction of a collecting device of a folding unit (not shown in FIG. 2), at which the signatures belonging to a booklet H1, H2 are collected, whereby, as already explained above, the order of the signatures in the signature stream 12 partly from the order of the signatures required in the area of the collecting device deviates. The collected signatures are then folded, at least as seen transversely to the transport direction, for example by a folding jaw cylinder 23 designed as a transverse folding device, in order to obtain a sensibly folded booklet H1, H2.

According to the invention, such partial signatures, in FIG. 1 the partial signature B2-1, which differ in terms of their sequence in the signature stream 12 from the sequence of signatures required in the area of the collecting device, are channeled out of the signature stream 12, namely upstream of the collecting device, whereby the signatures ejected from the signature stream 12, in FIG. 2 the half signature B2-1, are temporarily stored in the area of a storage device 13 of the folder, in order subsequently to be reintroduced into the signature stream 12 in the direction of arrow 14, namely in such a way that the position the signature B2-1, which is again introduced into the signature stream 12, matches the sequence and timing of the sequence and timing of the signatures required at the collecting device. It can thus be seen from FIG. 2 that before the partial signature B2-1 is removed, the signatures required in the booklets H1 and H2 in the signature stream 12 have the sequence A1, B1-1, B2-1, C1, A2, C2, whereas after After the partial signature B2-1 has been removed, buffered and reinserted into the now modified signature stream 12 ', the signatures required for the production of the booklets H1 and H2 have the order A1, B1-1, C1, A2, B2-1, C2, which include: the order and timing of the signatures required at the collection facility.

At the collecting device, the signatures A1, B1-1, C1 or A2, B2-1, C2 belonging to a booklet H1 or H2 are collected and subsequently processed at least by transverse folding into booklets. In the event that a printed product comprises several booklets, the booklets belonging to the printed product can be combined. In Fig. 2, each printed product P1 or P2 comprises a single booklet H1 or H2.

3 visualizes further details of the method according to the invention, namely in a further development of the method of FIG. 2, which come into play when the printed product is produced on the device shown schematically in FIG. 6. Thus, FIG. 6 shows details of a device for producing printed products, the device of FIG. 6 comprising a cross cutting device 15, on which the printing material web 10 printed with the printing pages 11 is separated into the full signature and half signatures by cross cutting. In the exemplary embodiment in FIG. 6, the cross-cutting device 15 comprises two pairs of cylinders 16, 17, which are used to form the cross-sections on the printing substrate web 10 when the signatures are separated. However, the use of two pairs of cutting cylinders 16, 17 is purely exemplary. It is also possible to use only a single pair of cutting cylinders or a cutting device with a single cutting cylinder or a cutting device without a rotating cutting cylinder.

An acceleration device 18 is positioned downstream of the cross-cutting device 15, by means of which the individual signatures can be accelerated to set a defined distance between them. Starting from the acceleration device 18, the individual signatures can be conveyed continuously in the direction of a collecting device 19 of a folding unit 21, the signatures A, B, C belonging to a booklet H being collected at the collecting device 19. The transport of the signatures, starting from the cross-cutting device 15 or acceleration device 18 in the direction of the collecting device 19, is carried out by a conveyor device 20, which is preferably designed as a belt conveyor device.

Downstream of the collecting device 19, which is formed in FIG. 6 as a collecting cylinder of a folder 21, further cylinders are positioned, namely a so-called transfer cylinder 22 and a so-called folder cylinder 23 serving as a cross-folding device. In the area of the folder cylinder 23, first folds can be applied to the in the area of the collecting device 19, signatures which belong to a booklet H are formed. FIG. 6 shows a further conveying device 24, by means of which signatures or booklets folded and folded in the region of the folding jaw cylinder 23 can be fed to a further folding device 25 in order to form a further fold on the signatures of the booklets. The booklets can be discharged from the folding unit 21 in the area of schematically shown paddle wheels 26, 27.

To produce the printed products P or booklets H, such signatures or partial signatures whose sequence in the signature stream 12 formed by cross cutting does not match the sequence of signatures required in the area of the collecting device 19 are the partial signature in FIGS. 2 and 3 B2-1, ejected from the signature stream 12, namely upstream of the collecting device 19, the partial signature ejected from the signature stream 12 being temporarily stored in the area of a storage device 13 shown in FIG. 6 and subsequently again in the signature stream 12 'upstream of the collecting device 19 the signature sequence and clocking required in the area of the collecting device 19 are introduced. The storage device 13 according to FIG. 6 is designed as a type of collecting cylinder with corresponding holding elements such as, for example, pin needles, grippers or other holding principles for signatures.

As can be seen from FIG. 6, a waste switch 28 can be positioned downstream of the acceleration device 18 and upstream of the storage device 13 or between the storage device 13 and the collecting device 19 in order to discharge waste from the signature stream 12.

This waste switch 28 is, however, of no importance for the present invention.

As can best be seen in FIG. 3, the at least one partial signature that is removed from the signature stream 12 and temporarily stored in the area of the storage device 13 is re-introduced into the signature stream 12 such that, as can be seen in FIG. 3, it is re-introduced Partial signature B2-1 is positioned below or alternatively above the full signature G2, namely in such a way that edges of these signatures B2-1 and C2 lying at the front in the transport direction thereof are congruent, so that they are easily collected in the area of the collecting device 19 in time with the collecting device 19 can.

To produce the printed products P1, P2 or booklets H1, H2 shown in FIG. 3, the printing material web 10 printed with the printing pages 11 is accordingly in the area of the cross-cutting device 15 in the signatures A1, B1-1, B1-2, C1 , A2, C2 separately. The signatures A1, C1, A2, C2 are full signatures with eight printed pages 11 each in the exemplary embodiment shown, the signatures B1-1 and B1-2 each being half-signatures with half the section length and accordingly four printed pages each . 3, the two half-signatures B1-1 and B1-2 are formed directly one after the other by cross-cutting the printing material web 10, so that they follow one another directly in the original signature stream 12 and accordingly have an order in the original signature stream 12 that does not correspond to that in the area the collection device 19 required signature order fits. Therefore, the at least one signature B2-1, the order of which does not match the order required in the area of the collecting device 19, is first removed from the signature stream 12 and temporarily stored in the area of the storage device 13 of the folder 21. Therefore, the signatures A1, B1-1 and C1, which are not removed from the signature stream 12, can be conveyed in the correct order with the correct timing in the direction of the collecting device 19, so that the collecting device 19 belongs to the booklet H1 or printed product P1 A1, B1-1 and C1 can capture and collect in the area of their front edge.

The signatures A2 and C2, which are not removed from the original signature stream 12 and belong to the booklet H2 or printed product P2, have in the signature stream 12 a sequence and timing required on the collecting device 19. As already mentioned, the at least one partial signature B2-1 temporarily stored in the area of the storage device 13, which belongs to the booklet H2 and thus the printed product P2, is again introduced into the signature stream 12 to form the modified signature stream 12 'such that it has at least one partial signature B2-1 is placed on the full signature C2 with congruence of its edges lying in front in the transport direction according to FIG. 3, in order in this way to feed all the signatures A2, B2-1, C2 belonging to the booklet H2 or printed product P2 in the correct sequence and timing of the collecting device 19 .

In this context, it should be noted that the circumference of the collecting cylinder 19 corresponds to an integer multiple of the section length of a full signature or preferably a section length of a full signature, whereas the circumference of the storage cylinder 13 corresponds to an integer multiple of the section length of a half signature or preferably half a section length and accordingly corresponds to the section length of a half signature. This makes it possible in a particularly advantageous manner to inject one or more half-signatures out of the signature stream 12 and to re-insert them into the signature stream 12, namely in such a way that all the signatures of the collecting device 19 are provided in the correct sequence and in the correct cycle.

It is also possible that the collecting cylinder 19 has a circumference which corresponds to an integral multiple of the section length of a full signature. In this case, two or more than two full signatures could then be recorded in succession on the circumference of the collecting cylinder 19. However, this would result in restrictions in the flexibility of the page jumps in the booklets H or printed products P to be produced, so that the use of a collecting cylinder 19 with a circumferential length which corresponds to the section length of a full signature is advantageous.

Since the circumference of the storage cylinder 13 preferably corresponds to half a section length of a full signature and the circumference of the collecting cylinder 19 preferably corresponds to the section length of a full signature, these cylinders basically have an in-phase clocking, the frequency of the storage cylinder being twice the frequency of the Collection cylinder 19, so that the storage cylinder can in any case deposit the front edge of a partial signature on the front edge of a full signature. In the exemplary embodiments according to FIGS. 6 and 7, the storage cylinder 13 can always grip half signatures on their front edge. With other folding unit configurations, it is also fundamentally conceivable that the storage cylinder 13 detects the trailing edge, for example. Since half-signatures to be discharged from the product stream 12 are accelerated to the beat via the acceleration cassette 18 regardless of their basically variable section length, the leading edge of such a half-signature on the front edge or in the middle of the timing of a full signature is used in the exemplary embodiments in FIGS. 1 to 7 Lie.

It should also be pointed out at this point that a partial signature, which is removed from the signature stream 12 and temporarily stored in the area of the storage device 13, can be temporarily stored in the storage device 13 as long as it is, namely until it is in a booklet to be produced or printed product is required. Furthermore, it is possible to simultaneously record and temporarily store several partial signatures in the area of the storage device 13, the order in which the ejected partial signatures are received by the storage device 13 and subsequently released again by the first-in / first-out principle or The first-in / last-out principle can also take place if one deviates from the pure form of a storage cylinder.

It should be pointed out that more than one storage device 13 can be used to temporarily store partial signatures that have been removed from the signature stream 12. It is thus possible to arrange a plurality of storage devices 13 one behind the other, as seen in the transport direction. It is also possible, as shown in FIG. 7, to position a first storage device 13 below the conveying device 20 and a second storage device 13 above the conveying device 20 in order to be able to store the diverted partial signatures variably either above or below a full signature.

The control of the storage device 13 for the temporary storage of signatures can be done in the manner known from DE 10 2005 017 232 A1 via control curves and masking curves.

4 and 5 show details of a further method according to the invention for producing printed products P or booklets H, FIGS. 4 and 5 exemplarily showing the production of printed products P1, P2, P3, each of which a booklet H1, H2, H3, each booklet H1, H2, H3 each comprising a full signature A1, A2, A3 and a half signature B1-1, B2-1, B3-1. 4 corresponds to the order of the signatures on the printing material web 10 and thus the order of the signatures in the signature stream 12 formed by cross cutting, which is not shown in FIG. 4 for the sake of simplicity, B1-1, B2-1, A1, A2, B3-1, B4-1, A3, so that the order of the signatures B2-1, B4-1 therefore does not match the order required in the area of the collecting device 19. Therefore, in the variant of FIG. 4, the partial signature B2-1 is ejected from the original signature stream, temporarily stored in the area of the storage device 13 and subsequently reinserted into the signature stream with the formation of the modified signature stream 12 ′, namely in such a way that the order of the signatures in the modified signature stream 12 'fits the sequence and timing that is required in the area of the collecting device 19. This follows directly from FIG. 4, from which it follows that the partial signature B2-1 immediately following the partial signature B1-1 in the original signature stream was introduced between the full signatures A1 and A2 in the modified signature stream 12 '. The partial signature B4-1, which is also to be discharged, is in turn introduced into the signature stream 12 ′ in FIG. 4 after the full signature A3. The variant of FIG. 5 differs from the variant of FIG. 4 in that, in FIG. 4, first the partial signatures B1-1, B3-1 on the collecting device 19 and only subsequently the respective full signatures A1 and A3 in the area of the respective collecting device 19 are grasped and collected in the area of the leading edge, whereas in FIG. 5, based on the order of the signatures on the printing material web 10, first the full signatures A1, A3 and then the half signatures B1-1, B3-1 are fed to the respective collecting device 19.

In order to ensure the correct position of the partial signature B2-1 that has been removed from the signature stream 12 in the booklet H2 or printed product P2 to be produced, the partial signature B2-1 is below the full signature A2 and in according to the variant of FIG. 4 Fig. 5 introduced into the signature stream 12 'above the full signature A2.

As already described in connection with FIGS. 6, 7, the transport of the individual signatures in the area of the cross-cutting device 15 takes place in the direction of the collecting cylinder 19 with the aid of the conveyor device 20, which is preferably designed as a belt conveyor. The conveyor device 20 designed as a belt conveyor comprises conveyor belts which run above and below the signatures and between which the signatures are held in the direction of the collecting device 19 during transport.

In order to be able to discharge partial signatures whose sequence in the original signature stream 12 does not match the sequence and timing of the signatures required at the collecting device 19, and subsequently to be able to smuggle them back into the signature stream 12 'after buffering at the storage device 13 , a lock (not shown) is provided, which serves to discharge these partial signatures from the signature stream 12 and subsequently to introduce these partial signatures into the signature stream 12 'upstream of the collecting device 19. Such a lock can be provided in that the conveyor belts of the conveyor device 20 designed as a belt conveyor are interrupted in sections in the area of the storage cylinder 13, the length of this interruption of the conveyor belts being less than the smallest section length of a partial signature, in the exemplary embodiment shown smaller than the section length a half signature. In this way, a secure guidance of all signatures can be ensured in the area of the lock in any case, on the other hand, half-signatures to be removed and reinserted can be easily and reliably fed to the storage cylinder 13 or transported away from the same.

In another embodiment, it is also possible to branch off the partial signatures to be supplied to the storage device 13 from the strip line by means of a signature switch, not shown, as described, for example, in DE 10 048 295 A1 or DE 10 2008 032 622 A1 to feed them directly to the storage device 13. Partial signatures to be extracted from the storage device 13 can then be emitted into a further additional strip line, not shown, which generally leads in the direction of the product stream 12, and which places the partial signatures in the correct position on the full signatures according to the principle described in DE 10 007 344 B4.

A printing machine, not shown in the figures, is used for printing on the respective printing substrate web 10, which printing press is preferably a digital printing press without a printing form. With this, printed pages or print contents can be printed on the respective printing material web 10 in any sequential order.

In the method according to the invention, no signatures are removed from the folder. Signatures removed from the signature stream conveyed to the folder are temporarily stored in the storage device of the folder and subsequently reinserted into the signature stream. With the invention, a more flexible side jump in booklets or printed products can be realized while avoiding waste.

Although the invention has been described with reference to the figures for the preferred application on a web printing press in which a printing material web is printed, it should be noted that the invention is also used in principle in sheet printing machines in which individual printing material sheets are printed can.

With regard to the processes and folding units shown with reference to FIGS. 1 to 6, it should finally be noted that, in the case of printing presses which are not variable in printing form and generally in the folding units and / or post-processing components suitable for this purpose, the section length is fundamentally variable. Nevertheless, it should be noted that the full signatures A1, A2, A3 and the partial signatures B1-1, B1-ex, B2-1, etc., which occur in a signature stream 12 and which belong to a print job, each have the same section length or sheet length. Usually, the length of a partial signature B1-1, B1-ex, B2-1 is approximately half the length of a full signature A1, A2, A3 etc., but can also vary depending on the type of fold.

Reference list

[0050] <tb> 10 <SEP> substrate web <tb> 11 <SEP> print page <tb> 12 <SEP> signature stream <tb> 12 ́ <SEP> modified signature stream <tb> 13 <SEP> storage facility <tb> 14 <SEP> arrow <tb> 15 <SEP> cross cutting device <tb> 16 <SEP> pair of cutting cylinders <tb> 17 <SEP> pair of cutting cylinders <tb> 18 <SEP> acceleration device <tb> 19 <SEP> collection facility <tb> 20 <SEP> conveyor <tb> 21 <SEP> folder <tb> 22 <SEP> transfer cylinder <tb> 23 <SEP> jaw cylinder <tb> 24 <SEP> conveyor <tb> 25 <SEP> folding device <tb> 26 <SEP> paddle wheel <tb> 27 <SEP> paddle wheel <tb> 28 <SEP> paper waste lock <tb> A1 <SEP> full signature <tb> A2 <SEP> full signature <tb> A3 <SEP> full signature <tb> B1 <SEP> full signature <tb> B1-1 <SEP> partial signature <tb> B2-1 <SEP> partial signature <tb> B3-1 <SEP> partial signature <tb> B4-1 <SEP> partial signature <tb> B2 <SEP> full signature <tb> C1 <SEP> full signature <tb> C2 <SEP> full signature <tb> H1 <SEP> booklet <tb> H2 <SEP> booklet <tb> H3 <SEP> booklet <tb> P1 <SEP> printed product <tb> P2 <SEP> printed product <tb> P3 <SEP> printed product

Claims (15)

1. A method for producing printed products, each printed product (P1, P2, P3) each having at least one booklet (H1, H2, H3) each consisting of at least two printed signatures, namely at least one full signature (A1, A2, A3, C1, C2, C3) with a first number of printed pages and at least one partial signature (B1-1, B2-1, B3-1) with a second number of printed pages, with at least the following steps: continuous delivery of a signature stream (12) from printed signatures, namely from printed full signatures (A1, A2, A3, C1, C2, C3) and from printed partial signatures (B1-1, B2-1, B3-1), in the direction of one Collecting device (19), the order of the signatures in the signature stream (12) partially deviating from the order of the signatures required in the area of the collecting device (19); Extracting at least one partial signature (B2-1) from the signature stream (12) upstream of the collecting device (19), which differ in terms of their order in the signature stream (12) from the order of the signatures required in the area of the collecting device (19); Intermediate storage of the or each at least one partial signature (B2-1) that is ejected from the signature stream (12) in the area of a storage device (13); Introducing the or each partial signature (B2-1) temporarily stored in the area of the storage device (13) into the signature stream (12 ́) upstream of the collecting device (19) to match the sequence, timing and / or number required in the area of the collecting device (19) Signatures; Collecting the signatures belonging to a booklet (H1, H2, H3) in the area of the collecting device (19) and further processing them into at least cross-folded booklets (H1, H2, H3) in a folder (21). 2. The method according to claim 1, characterized in that in the event that the respective printed product (P1, P2, P3) comprises more than one booklet (H1, H2, H3), each of which forms a printed product (P1, P2, P3 ) belonging to booklets (H1, H2, H3). 3. The method according to claim 1, characterized in that a printing material web (10) with a defined width is printed with printed pages (11), the signatures being separated from the printing material web (10) by cross cutting with variable section length, namely by cross cutting with a first section length the full signatures (A1, A2, A3, C1, C2, C3) and by cutting with a smaller second section length the partial signatures (B1-1, B2-1, B3-1), and the signature stream thus formed continuously in the direction is promoted to the collection facility (19). 4. The method according to claim 3, characterized in that the full signatures (A1, A2, A3, C1, C2, C3) with a number of X1 printed pages by cross cutting with the first section length and half signatures (B1-1, B2-1, B3-1) with a number of X2 = 0.5 * X1 printed pages. 5. The method according to any one of claims 1 to 4, characterized in that the signatures belonging to a booklet (H1, H2, H3) are collected on the collecting device (19), the collecting device (19) being designed as a collecting cylinder, the The circumference of the collecting cylinder (19) is designed to be an even multiple of the section length of the full signatures (A1, A2, A3, C1, C2, C3) or preferably a single section length of the full signatures (A1, A2, A3, C1, C2, C3) . 6. The method according to any one of claims 1 to 5, characterized in that from the signature stream (12) upstream of the collecting device (19) ejected signatures (B2-1) on the storage device (13) are temporarily stored, the storage device (13) as Storage cylinder is formed, the circumference of the storage cylinder (13) being an even multiple of the section length of the partial signatures (B1-1, B2-1, B3-1) or preferably a single section length of the partial signatures (B1 -1, B2-1, B3-1) is designed. 7. The method according to any one of claims 1 to 6, characterized in that a partial signature (B2-1) temporarily stored in the area of the storage device (13) is introduced upstream of the collecting device (19) into the signature stream (12 ́) such that the respective Partial signature is positioned below or above a full signature, namely in such a way that, seen in the transport direction thereof, the edges on the edges to be gripped by the collecting device (19) are congruent. 8. The method according to claim 7, characterized in that a partial signature (B2-1) temporarily stored in the area of the storage device (13) is introduced upstream of the collecting device (19) into the signature stream (12 ́) such that the respective partial signature (B2- 1) is positioned below or above a full signature, namely in such a way that edges lying in front in the transport direction are congruent. 9. Device for producing printed products, each printed product (P1, P2, P3) each having at least one booklet (H1, H2, H3) made up of at least two printed signatures, namely at least one full signature (A1, A2, A3, C1, C2, C3) with a first number of printed pages and at least one partial signature (B1-1, B2-1, B3-1) with a second number of printed pages, for carrying out the method according to one of claims 1 to 6, with at least: a collecting device (19) and at least one transverse folding device (23); a conveying device (20) for continuously conveying a stream of signatures (12) from printed signatures, namely from printed full signatures and from printed partial signatures, in the direction of the collecting device (19), a lock for removing such partial signatures (B2-1) from the signature stream (12) upstream of the collecting device (19), which differ in terms of their order in the signature stream (12) from the order of the signatures required in the area of the collecting device (19), and for Introducing the partial signatures into the signature stream (12 ́) upstream of the collecting device (19) in accordance with the sequence, timing and / or number of signatures required in the area of the collecting device (19); a storage device (13) for temporarily storing the partial signatures (B2-1) that have been removed from the signature stream (12). 10. The device according to claim 9, characterized in that the collecting device (19) is designed as a collecting cylinder, the circumference of which is designed to be an integral multiple of the section length of the full signatures or preferably a single section length of the full signatures. 11. The device according to claim 9 or 10, characterized in that the storage device (13) is designed as a storage cylinder, the scope of which is designed to be an integer multiple of the section length of the partial signatures or preferably to a single section length of the partial signatures. 12. The device according to one of claims 9 to 11, characterized by a printing machine for printing on a printing material web (10) with a defined width with printing pages (11), a cross cutting device (15) in order to separate the signatures from the printing material web (10) by cross cutting with variable section length, namely the full signatures by cross cutting with a first section length and the partial signatures by cross cutting with a smaller second section length. 13. The apparatus according to claim 12, characterized in that the printing press is a digital printing press. 14. Device according to one of claims 9 to 13, characterized in that the conveyor device (20) is a belt conveyor device with conveyor belts running above the signatures and below the signatures. 15. The apparatus according to claim 14, characterized in that the lock is designed as an interruption of at least some of the conveyor belts.