EP1773702A1

EP1773702A1 - Methods and devices for positioning web processing tools or for presetting a width of cut

Info

Publication number: EP1773702A1
Application number: EP05761175A
Authority: EP
Inventors: Thomas Joachim Fischer-Radtke; Thomas Potzkai
Original assignee: Koenig and Bauer AG
Current assignee: Koenig and Bauer AG
Priority date: 2004-07-14
Filing date: 2005-07-12
Publication date: 2007-04-18
Also published as: WO2006005753A1; DE102004054599A1

Abstract

The invention relates to methods and devices for positioning web processing tools (06.x; 11.x; 12.x) and for presetting a width of cut of partial webs (01.x; 01’x), of a web (01) passing through a printing press. When longitudinally cutting the web to be cut, the longitudinal cutting device (06.x) and, optionally, other processing tools (11.x; 12.x) are positioned by a control and/or arithmetic unit (16), and a width of cut (b01.x) of two partial webs is deliberately selected so that it is different.

Description

description

Processes and devices for positioning web processing tools or for presetting a cutting width

The invention relates to methods and devices for positioning web processing tools or for presetting a cutting width according to the preamble of claims 1, 13, 20 and 23 respectively.

From EP 1238 935 A2 a device for longitudinally cutting foils and tapes is known, wherein an upper knife can be positioned transversely to the direction of transport of the web to set a cutting width.

DE 196 02248 A1 discloses a folding former which can be moved along an inlet nip of two downstream rollers for the lateral correction of the folded strand.

WO 01/70608 A1 discloses a turning bar that can be positioned transversely to the direction of the web and a register roller that can be positioned longitudinally to the way in which the web enters. The turning bar can be pivoted in such a way that it deflects the web to the right or left, depending on the position.

EP 14 15 944 A1 discloses a device for adjusting pressure rollers and / or cutting knives on folders, wherein a plurality of rollers / knives arranged transversely to the web direction are axially adjustable simultaneously or immediately one behind the other and one part remains while another part a first and / or another part is adjusted by a second adjustment path.

CH 632703 A5 discloses a method and an apparatus for setting a Printing machine, from product-relevant data such. B. number of sections, page numbers and colors, and machine-relevant data is generated by a computing unit, the required plate assignment and the associated web guiding scheme.

The invention has for its object to provide methods and devices for positioning web processing tools or for presetting a cutting width.

The object is achieved according to the invention by the features of claims 1, 13, 20 and 23.

The methods and devices for positioning

Web processing tools allow the press to be set up particularly quickly and with little waste, particularly if a changeover from a first to a different second production is to be carried out. This can involve new web guides and / or only a different web width and / or a different division of the web to be treated.

It is particularly advantageous to determine the manipulated variables on the basis of the reject scheme of the planned production, the path guidance required for this and ultimately the specification of relative positions compared to machine-fixed reference positions, in particular the machine center level. The positioning process can be carried out with partial web widths of integer divisors and integer multiples thereof, or in another version, taking into account deliberately chosen deviations due to the subsequent further processing (folding, cutting).

A major advantage that can be achieved with the devices or the methods for presetting the cutting widths is that, in particular, with stronger products a v-shaped fleeing of the product edge after folding is reduced or even avoided without additional cutting of these folded products being necessary.

Exemplary embodiments of the invention are shown in the drawings and are described in more detail below.

Show it:

Figure 1 is a schematic representation of a section of a imposition with print image assignment in front view.

2 shows a side view of a superstructure with a further processing stage;

Figure 3 is an exploded top view of a turn deck;

Fig. 4 examples of a multi-layer intermediate;

Fig. 5 Example of the width of a sub-web of a cut Bahn.sff

Fig. 1 shows schematically in the lower area a processing stage for processing a material web 01, z. B. substrate, in particular paper web 01, in short: web 01. The web 01 is intended to be processed, in particular printed, on at least one side, then lengthways in partial webs 01.1; 01.2; 01.3; 01.4 cut and ultimately at least two of these partial webs 01.1; 01.2; 01.3; 01.4 to be further processed together into an intermediate or end product with a mutually defined arrangement of the processing or printing sections.

In the preferred case, one as a printing press, in particular Web-fed rotary printing press, processing machine designed, should be obtained in the multilayer intermediate or end product, a desired assignment of the print image sections to the product pages or sequence of the printed pages. For this purpose, for a certain production or a product in connection with the intended web guidance between processing stage and combining the partial webs 01.1; 01.2; 01.3; 01.4 the page assignment in the z. B. specified as a printing unit or printing units executed processing stage.

Fig. 1, below, shows schematically in the case of a double-sided printing the arrangement of the printed pages in unroll on two printing cylinders supporting the printing pages 02 of two printing units, not shown. For offset printing, the forme cylinders 02 can each form a printing unit with a transfer cylinder (not shown) as well as a dyeing and dampening unit, if necessary, and form two single printing points with an impression cylinder or together with the transfer cylinder of the other printing unit a double printing point (rubber-against-rubber operation). In the former case, the individual printing points can also be used in the direct printing process, i. H. Form cylinder 02 acting directly with the web 01.

In the embodiment shown, the printed pages are arranged on a plurality of detachable printing forms 03. In the example shown, the forme cylinders 02 have a length of eight and a circumference of four standing print pages in commercial, in particular magazine or DIN A4 format, which are arranged on four forme plates 03 next to one another and two printing forme 03 in a row on the forme cylinder 02 .

After printing, the web 01 passes through a longitudinal cutting device 04 with at least one, in particular at least three web processing tools 06, spaced apart from one another transversely to the web 01, designed as knife units 06. In a variant with an odd number (three or five) of knife units 06, the middle z . B. stationary and are at least the (two or four) off-center arranged knife units 06 by means of only indicated drives 07 movably arranged transversely to the web running direction. The drives 07 are preferably designed as remotely actuatable actuating means 07. In the variant shown, all knife units 06 of the longitudinal cutting device 04 can also be arranged to be axially movable. The knife units 06 (here 06.1; 06.2; 06.3) are preferably additionally designed to be switched on and off separately. Depending on the number of knife units 06 employed, web 01 leaves as several (here four) partial webs 01.1; 01.2; 01.3; 01.4 the slitter 04.

In the further course up to a point of combining at least two of the partial webs 01.1; 01.2; 01.3; 01.4 to a strand 08, for example a first drawing roller 09 assigned to strand 08, further web processing tools 11; 12, in particular deflection or turning bars 11 and / or register rollers 12, arranged and the individual partial webs 01.1; 01.2; 01.3; 01.4 to be assigned on their special train paths. Hg. 2 shows a possible arrangement of a so-called superstructure with web processing tools 11 designed as turning bars 11 and register rollers 12; 12 (here 11.1; 11.2; 11.3; 11.4; 12.1; 12.2; 12.3; 12.4), which is preceded by the longitudinal cutting device 04 (not shown here) from FIG. 1, in a side view. The reference numerals I and »consistently indicate the machine sides I and II relating to the two end faces of the printing units, in particular the forme cylinders 02, for orientation. The running direction of the partial webs 01.x running onto the turning bars 11.x corresponds in FIG. 2 to the direction into the sheet plane, so that they cannot be seen in the illustration in FIG. 2. Fig. 3 shows a top view - but the individual superimposed levels are pulled apart for a better overview - the entry and passage of the partial webs 01.x through the turning bars 11.x of the turning deck and the register rollers 12.x. The cuts made here are merely indicated by scissor symbols.

Notwithstanding the consideration of processing-related considerations mentioned below Target deviations, the knife units 06 are arranged next to one another transversely to the running direction of the web 01 (in FIG. 1, for example, equidistantly) and divide the web 01 into partial webs with theoretical strand ratios of small numbers n / m (e.g. n, m <18, in particular n, m <10, especially m <6, where n <m) such as in three partial webs of V ₃ , V ₃ , V ₃ or in two partial webs of V ₃ and% or in four partial webs of VA, VA, VA, VA ( Rg. 2) or in three partial webs ä VA, VA and Vz or in three partial webs ä%, V ₅ , ² Z ₅ - depending on the number and axial positioning of the employed knife units 06. In the example, web 01 is divided into four partial webs 01.1; 01.2; 01.3; 01.4 cut open, each of which essentially corresponds to a quarter of a web width b01 of web 01. Under certain circumstances, however, minus or plus the target deviations described below in the partial web widths δ, or δ _SiX in the cutting positions, "s" being the placeholder for cutting and "x" being the placeholder for the xth knife unit 06.x. . Also indicated in Rg. 2 (dashed lines) is a partial web width ¹³⁰¹ V _{4 of} a partial web 01.4 and its position from a web 01 'of a different width. For example, two partial webs are indicated here, which essentially correspond to a quarter of a web width b01 'of a web 01' of smaller width.

When changing between lanes 01; 01 'different web width bO1; b01 ', with the same division, at most one of the knife units 06 can remain unchanged in its position, while at least all of the other knife units 06 in use are to be adjusted in their position to the new width. The same applies to the alignment of any subsequent turning bars 11, but in the example of the four ¹ tel-th lanes all four turning bars 11.x have to be repositioned. In principle, in the case of an odd number of cuts with essentially (possibly + δ) equally wide partial webs, one of the knife units 06.x - advantageously the one located in the machine center plane M - can remain stationary, while all turning bars 11.x have to be realigned. In the case of an even number of cuts with substantially (possibly ± δ) partial webs of the same width, one of the turning bars 11. remain stationary, while all other knife units 06.x have to be realigned.

For positioning the turning bars 11.x, drives 13, in particular each turning bar 11.x, are provided as adjusting means, which are symbolized in FIG. 2 only by double arrows. The drives 13 are preferably designed as remotely actuatable actuating means 13.

If the partial webs 01.x are to be fed for further processing after being deflected by the turning bars 11.x in a common, defined alignment F (here defined as the central plane of the partial web), then when changing the web width b01; b01 'with the resulting change in the partial web widths and / or with a change in the pitch, the turning bars 11.x are positioned such that the partial webs 01.x come to rest in the desired alignment F after the deflection. Any change in the position of a turning bar 11.x and / or a changed partial web alignment of an incoming partial web 01.x also entails a change in length in the path of the partial web 01.x, which is compensated for by the register rollers 12.x in such a way that the printed images when merging stand in the longitudinal register to each other. In the example, a register roller 12.x is provided for each partial web 02l ™ x, but with a number of k maximum partial webs 01.x provided, a number of at least k-1, in particular k register rollers 12.x, must be provided.

For positioning the register rollers 12.x, drives 14, in particular for each register roller 12.x, are provided as adjusting means, which are symbolized in FIG. 2 only by double arrows. The drives 14 are preferably designed as remotely actuatable actuating means 13.

The positioning for presetting the web processing tools 06.x and / or 11.x and / or 12.x or their drives 07.x and / or 13.x and / or 14.x now takes place remotely operated by a control and / or arithmetic unit 16 on the basis of the imposition scheme relevant for production. The imposition scheme contains information on the print layout and the web guides for the selected production. The automatic presetting by the control and / or computing unit 16 can now be based on two control and / or computing unit 16 procedures described briefly below:

In a first embodiment, for each production option and / or imposition scheme provided, computed or empirically determined target positions for the web processing tools 06.x and / or 11.x and / or 12.x or their drives 07.x and / or 13. x and / or 14.x available in a memory. In a first variant, the operating personnel now either give the desired production directly in an input unit of the control and / or arithmetic unit 16 or in an input unit of a control station 17 or control center computer connected to the control and / or arithmetic unit 16, or directly the desired imposition scheme on or select from a predefined selection. In a second variant, the data on the planned production and / or imposition scheme are transferred to the control and / or computing unit 16 by a product planning system 18 based on data processing or a corresponding prepress system. On the basis of the selected / specified production or the imposition scheme, the control and / or arithmetic unit 16 now provides the associated desired positions of the web processing tools 06.x and / or 11.x and / or 12.x or their drives 07. x and / or 13.x and / or 14.x and the corresponding control values are output to the drives 07.x and / or 13.x and / or 14.x or their drive controls via an output unit. This output is for drives 07.x; 13.x; 14.x specifically addressed by the multiple processing tools, in particular central control and / or computing unit 16, correspondingly addressed to all of the web processing tools 06.x and / or 11.x and / or 12.x assigned to them or their drives 07.x; 13.x; 14.x. In a second embodiment, the control and / or arithmetic unit 16 has relevant geometric data for determining the path lengths to be covered. These are, for example, relative positions of the machining tools 06.x; 11.x; 12.x to a machine center plane M of the incoming (partial) webs 01; 01.x and / or details of distances a of a desired escape F of the deflected tracks relative to a machine-fixed frame. This information relevant to the path and the position of the web is already known from the construction data of the machine and can be transmitted to the control and / or computing unit 16 and can be kept there. The control and / or arithmetic unit 16 now calculates the positions of the individual web processing tools 06.x and / or 11.x and / from these geometrical data relevant to the web path and / or web storage and a specified / selected (see above) production or the corresponding imposition scheme. or 12.x or their drives 07.x and / or 13.x and / or 14.x.

The effect of a change from one web width b01 to another is briefly explained below using the example of the two partial webs 01.4 and 01 '.4 in FIGS. 2 and 3: The partial web 01.4 runs around the correctly positioned turning bar 11.4 and leaves it in the desired braiding F. In the example, without influencing the escape F achieved, the upper side of the partial web 01.4 is plunged downward by rotating another roller 19. If a second, e.g. B. narrower web 01 'is now also symmetrical to the machine center plane M and cut into partial webs 01 \ x, so changes in addition to the width b01.x; b01'x also the position of the middle flight F of the partial web 01 '.x running towards the turning bar 11.x. If the position of the turning bar 11.4 remains unchanged, the partial web 01 '.4 would meet this "later" (further up in FIG. 3) and would leave the turning bar 11.4 in a central alignment spaced apart from the central flight F. To prevent this, the turning bar 11.4 is for to position this case further towards the machine center plane M. A change in path length associated therewith - here shortening - is now made by a corresponding positioning of the register roller 12.4 balanced.

In order to obtain the desired page sequence in the example, the two partial webs 01.1 and 01.3 are deflected directly in the direction of further processing, while the two partial webs 01.3 and 01.4 are first plunged over a roller 19 in the manner of a so-called bay window guide and then fed to the further processing stage becomes. These additional paths of individual partial webs 01.x resulting from the imposition by falling must also be taken into account when calculating or determining the correct default position of the register rollers 12.x.

For the presence of three knife units 06.x, four turning bars 11.x and four register rollers 11.x, a data set of target positions of the web processing tools 06.x and / or 11.x and / or 12 determined or calculated according to one of the above-mentioned methods is used as an example .x or their drives 07.x and / or 13.x and / or 14.x for a certain production or their imposition scheme are given in a table:

Table 1: Default positions for web processing tools.

In the example in Table 1, the preferred embodiment is assumed, according to which the lateral positioning of the knife units 06.x and the turning bars 11.x relative to the machine center plane M is used as the reference point. The middle knife unit 06.2 lies in the machine center plane M, while the others Knife units and the turning bars are each positioned in pairs essentially symmetrically to this. This is particularly advantageous if predominantly webs 01; 01 'through the machine in the middle, ie in a symmetrical position to the machine center plane M. In a figurative sense, this also applies to 3/4 lanes, whereby the division to the machine middle level M runs on the line between VA and Vz, as well as 1/3 and 2/3 etc.

The default values for the register rollers 12.x result from the path difference and are given, for example, relative to a zero position of the respective roller 12.x which is fixed to the frame.

In the following, a procedure for presetting a cutting width or the positions of the knife units 06.x and corresponding operating situations is presented, which is a further development of the above-mentioned. Presetting in addition, but also as a procedure or operating situation in isolation, has great advantages in terms of material savings and / or further processing:

In the case of longitudinal cutting, a subsequent longitudinal folding of multilayer strands and / or a trimming intended for the intermediate product and / or a “stuffing” of the intermediate products to be provided with other intermediate products is already taken into account - and / or cross-folded, especially in the case of thicker products made of equal width partial webs, a v-shaped fleeing of the product edge occurs after folding (FIG. 4a). This edge is usually trimmed for higher-quality products, so that material and In extreme cases, even one work step can be saved In the case of higher-quality (intermediate) products, to obtain clean product edges, trimmed end formats are produced which are smaller in size than the printed page formats on the printed web 01; 01 ' The same applies here to save material. If an intermediate product is to be opened briefly in a later processing step for the purpose of inserting an inlay ("stopper"), a longer leg length is often deliberately produced when folding, which serves as a flap when opened mechanically and is later cut off again if necessary (FIG. 4b). Here, too, material can be saved if only the position of the leg length required as a flap is made asymmetrical and trimmed later .. 4a and b show possible sections to be saved by means of dot-and-dash lines.

In one version, by entering or accepting web widths bO1; b01 'and / or web guides and / or the corresponding imposition scheme, d. H. the product-related web guides, from a corresponding planning system or by the operator (see above), for example, it is now first determined which knife units 06.x of the longitudinal cutting device 04 and / or which of the turning bars 11, x and / or which of the register rollers 12.x are to be used or are to be deactivated.

For the active web processing tools 06.x; 11.x; 12.x can in a first version according to the above. Procedure default positions are determined or calculated as the basic position of theoretical strand ratios of small whole number ratios (see above).

These theoretical part web widths b01.x; bOI'.x small integer ratios can now be corrected in a computational or manual step to be carried out by the printer, whereby individual partial webs 01.x are run slightly narrower or wider than the theoretical value for the above-mentioned theoretical strand ratio - that is, as an integer divisor smaller Numbers of a full path 01, 01 '. The sum of the partial web widths bO1.x; bOI'.x from the same path 01, 01 'corresponds to the width b01; b01 'of full lane 01; 01 ', so that one of the partial webs 01.x is deliberately minimally larger and another of the partial webs is minimally smaller than an integer Divisor n / m of small integers (e.g. with m = 1, 2, 3, 4, 5, 6 and n = 1 to m-1) of the full web width. A deviation δ can then be provided for each partial web 01.x, the index i denoting the i th partial web 01.i. If there is a deliberate deviation ± δ _t from the theoretical width of the partial web, z. B. at least 1 mm, preferably at least 2 mm. The total width bO1 of the web 01 is preferably maintained, so that the sum of all δ _v taking into account the sign

is zero, ie ^ ₄ S ₁ = 0, with k as the number of partial webs 01.x. i = l

In accordance with the determined correction for this deliberate minimal deviation δ, from the integer divisors of small numbers, the corresponding target positions for the web processing tools 06.x; 11.x; 12.x or their drives 07; 13; 14 determined and transferred to this for presetting.

Conversely, this can also lead to the fact that instead of a web width of z. B. 4 times maximum strand width, a smaller web width can be used, for example, to save 5 mm web width and thus material.

In the first procedure for taking deviations δ into account, a position determination of uncorrected theoretical partial web widths b01.x and the result for the processing tools 06x; 11.x; 12.x resulting basic positions and then by the printer or a further arithmetic step in the control and / or arithmetic unit f 6 the correction of the partial web widths b01.x by the deviations δ _t in a corresponding δ _y , _x corrections for positioning the processing tools 06x; 11.x; 12.x implemented. Here, the index y stands for example as a placeholder for the type of processing tool 06x; 11.x; 12.x (for example "s" for cutting, "w" for Weden and "r" for registers) and x for the xth Machining tool of the same type (for example 1, 2, 3 ...) - Thus, for example, the corrected default positions for the values δ _y , _{x result in} corrected basic positions from Table 1, the values for δ _y , _x in Table 2 being positive, can be negative or 0:

Table 2: Default positions taking into account partial web widths that differ from the theoretical line widths.

In a second procedure for taking deviations δ _t into account, the specific production or the specific imposition scheme in the control and / or computing unit 16 can be assigned corresponding setpoints that already contain the corrections or deviations δ and can be maintained accordingly. As already mentioned, these already corrected target specifications can either be determined empirically or arithmetically and then stored or they can also be calculated from the geometric data and the reject scheme.

In a third procedure, a variation of the uncorrected preset knife positions by deviations δ _{t can be} carried out manually, for example, via the printer at the control station 17 or at the control and / or computing unit 16, while the associated target positions of the Turning bars 11.x and / or register rollers 12.x are automatically calculated and be followed up.

A possible result of such an automatic or manual correction is exemplified for four partial webs 01.1 to 01.4 in FIG. 5, the dashed cutting lines representing those uncorrected theoretical partial web widths b01.x and the solid cutting lines representing the positions of the actually corrected cuts. The intersection between the third and fourth partial web is unchanged in the example. In the case shown, the actual corrected partial web width b01.i _{kOrr of} the i-th partial web 01.i results from the sum of the uncorrected partial web width b01.i and the desired deviation δ _t . Δi is less than zero, O _{2 is} greater than zero, δ _{3 is} less than zero and δ _{4 is} equal to zero, the sum of the deviations δ ₂ preferably being zero again. For the conditions shown, the knife unit 06.1 must be replaced by a resulting amount of δ _S; i to the left, the knife unit _06.2 to the right by δ _Sj2 and the third knife unit 06.3 not at all transversely to the running direction of the web 01.

In an example not shown, a web 01 is cut into three sub-webs 01.x, the web widths then z. B. to 1/3 + δi, 1/3 + δ ₂ , 1/3 + δ ₃ , z. B. the first-mentioned deviation δl is positive and the latter two are chosen negatively, ie for example that 1/3 + 1O ₁ 1, 1 / 3-1O ₂ 1, 1 / 3- | δ ₃ | applies. Preferably applies

3 again ^ S ₁ = 0. i = l

The partial webs 01.x which differ by a small dimension in width are not to be understood as residual strips obtained by trimming. If necessary, these can also occur in addition to the "normal" division, whereby the above statement regarding the preservation of the total web width is to be applied analogously to the web width bO1 remaining minus the trimming. With this method, the printer or a corresponding presetting system is provided with an aid by means of which positions of the longitudinal cutting device 04 and / or turning bars 11.x and / or register rollers 12.x are taken into account in anticipation of an edge offset caused by further processing due to deliberate target deviations and can be preset or adjusted are at least predictable.

Reference symbol list

01 material web, paper web, web

02 forme cylinder

03 printing form

04 slitter

05 -

06 Path processing tool, knife unit

07 actuator, drive

08 strand

09 pull roller

10 -

11 web processing tool, deflection bar, turning bar

12 web processing tool, register roller

13 actuators, drive

14 actuators, drive

15 -

16 control and / or computing unit

17 control center

18 Product planning system

19 roller

20 -

21 finishing stage, folder

01 "track

01.x partial web, with x = 1, 2, 3, 4

01 '.x partial web, with x = 1, 2, 3, 4

06.x, knife unit, with x = 1, 2, 3

11.x turning bar, with x = 1, 2, 3, 4 12.x register roller, with x = 1, 2, 3, 4

a distance

F flight, middle flight

M machine center level

bO1 width, web width bO1 'width, web width bO1.x wider, partial web width, with x = 1, 2, 3, 4 bO1.i _k o _rr corrected partial web width, with i = 1, 2, 3, 4

δ _ι deviation, correction of the partial web width, with i = 1, 2, 3, 4 δ _s , i correction of the cutting position δ _{s> 2} correction of the cutting position

I machine side

II machine side

Claims

Expectations

1. Method for positioning web processing tools (06.x; 11.x; 12.x), a control and / or computing unit (16) being supplied with information about a planned production and / or a corresponding reject scheme based on the data for this desired production relevant imposition schemes are determined in the control and / or arithmetic unit (16) preset values for the web processing tools (06.x; 11.x; 12.x), and on the basis of these preset values a corresponding positioning of the web processing tools (06.x; 11.x; 12.x) is carried out by addressing specific control signals to drives (07.x; 13.x; 14.x) of the respective web processing tools (06.x; 11.) By the control and / or arithmetic unit (16) .x; 12.x) are transmitted.

2. The method according to claim 1, characterized in that for each envisaged production possibility and / or per envisaged imposition, computed or empirically determined target positions for the presetting values of the web processing tools (06.x; 11.x; 12.x) are kept available in a memory, accordingly the planned production by the control and / or computing unit (16) and output as control signals to the drives (07.x; 13.x; 14.x).

3. The method according to claim 1, characterized in that in the control and / or computing unit (16) web path and / or web storage-relevant geometric data are kept, from which depending on the selected production or its imposition by the control and / or arithmetic unit (16), the preset values for the positions of the individual web processing tools (06.x; 11.x; 12.x) are determined and sent to the drives (07.x; 13.x; 14.x) as control signals.

4. The method according to claim 1, characterized in that the indication of the planned production or the imposition scheme in an input unit of the control and / or computing unit (16) or an input unit of a control station connected to the control and / or computing unit (16) (17) done manually.

5. The method according to claim 1, characterized in that the specification of the planned production or the imposition scheme is carried out electronically by a data processing-based product planning system (18) or a corresponding prepress system.

6. The method according to claim 1, characterized in that as processing tools (06.x) a plurality of knife units (06.x) spaced apart from one another transversely to the web running direction in their position transversely to the web running direction of a web (01) to be cut in partial webs (01.x) be positioned.

7. The method according to claim 6, characterized in that in addition to the knife units (06.x) by the control and / or computing unit (16) a plurality of turning bars (11.x) spaced apart from one another transversely to the direction of web travel in their position transverse to the web direction of the incoming partial webs (01.x).

8. The method according to claim 6, characterized in that in addition to the knife units (06.x) by the control and / or computing unit (16) several of the partial webs (01.x) assigned register rollers (12.x) in their position in Be positioned with regard to a route change in the path of the relevant sub-lane (01.x).

9. The method according to claim 6 or 7, characterized in that the positioning relative to a machine center plane (M) taking into account a partial web width to be achieved (bO1.x).

10. The method according to claim 7 and 8, characterized in that the positioning of the register roller (12.x) is carried out mathematically from geometric data on the position of the turning bar (11.x) and the partial web (01.x).

11. The method according to claim 6, characterized in that the knife units (06.x) for generating partial webs (01.x) are positioned such that partial web widths (b01.x) with a calculated theoretical strand ratio of small numbers n / m with n, m <18 and n <m in relation to the width of the entire web (01).

12. The method according to claim 6, characterized in that the knife units (06.x) for generating partial webs (01.x) are positioned such that the widths of two partial webs (01.) Obtained from the same web (01) and intended for further processing .x) deliberately differ from each other by an amount outside the cutting and / or measuring tolerance.

13. Method for ^ presetting a cutting width of partial webs (01.x; 01 \ x) and ^ a web running through a printing press (01; 01 ¹ ), with at least one knife unit (06 .x) a longitudinal cutting device (04) is positioned such that the widths (b01.x; b01'.x) of two partial webs (01.x; 01 \ x) obtained from the same web (01; 01 ') are deliberately one dimensions outside the cutting and / or measuring tolerance differ from each other.

14. The method according to claim 12 or 13, characterized in that one of the two partial webs (01.x) is unequal and narrower than an integer divisor n / m smaller integers, where m = 1, 2, 3, 4, 5 or 6 and n = 1 to m-1.

15. The method according to claim 12 or 13, characterized in that the sum of the partial web widths (bO1.x) from a same web (01) corresponds to the width (bO1) of the full web (01).

16. The method according to claim 12 or 13, characterized in that the partial webs (bO1.x) which differ in their width (bO1.x) are provided for further processing and do not represent any residual strips resulting from edge trimming.

17. The method according to claim 12 or 13, characterized in that a deliberate deviation (δ _t ) from a partial web width theoretically resulting from the integer divider n / m smaller integers is at least 1 mm.

18. The method according to claim 12 or 13, characterized in that the deliberate deviation (O ₁ ) in a control and / or computing unit (16) is determined from information on the planned production or the imposition scheme.

19. The method according to claim 18, characterized in that the indication of the planned production or the imposition scheme in an input unit of the control and / or computing unit (16) or an input unit of a control station connected to the control and / or computing unit (16) (17) done manually.

20. Device for positioning web processing tools (06.x; 11.x; 12.x), comprising a control and / or computing unit (16),

- which information about a planned production and / or a corresponding reject scheme can be supplied,

- Which in operative connection with a drive (07) of at least one knife unit (06) and with a drive (13; 14) of at least one of the same tracks (01) assigned turning bar (11) and / or register roller (12.x) - and which storage and / or computing means in the control and / or computing unit (16) are designed to each other, tailored to the upcoming production to determine corresponding positions for both the knife unit (06) and the turning bar (11) and / or register roller (12.x).

21. The apparatus according to claim 20, characterized in that relevant geometric data of the machine for determining the path lengths to be covered by partial webs (01.x) generated by the knife unit (06) are kept in the control and / or computing unit (16).

22. The apparatus according to claim 20, characterized in that production-related preset values are provided in the control and / or computing unit (16), which can be called up depending on the planned production.

23. Device for presetting a cutting width, wherein during the longitudinal cutting of a whole web (01) at least one knife unit (06.x) of a longitudinal cutting device (04) is positioned such that the widths (b01.x) are two partial webs obtained from the same web (01.x) deliberately differ from each other by a certain amount that is outside the cutting and / or measuring tolerance.

24. The device according to claim 23, characterized in that the deliberate deviation from a partial web width resulting theoretically by the integer divisor n / m, with m = 1, 2, 3, 4, 5 or 6 and n <m, smaller integers (b01.x) is at least 1 mm.