WO2009024579A2 - Devices and method for monitoring and/or regulating the course of a strand in a funnel construction of a rotary roller printing press - Google Patents

Abstract

The invention relates to a device for monitoring and/or regulating the course of a strand in a funnel construction of a rotary roller printing press having at least one former (16; 17; 18) and a strand (21; 22; 23) and/or partial strand (21.1; 21.2; 21.3; 22.1; 22.2; 22.3) coming from the former (16; 17; 18), which can be fed to a lateral cutter (13) downstream of the former (16; 17; 18), wherein two detectors (DO...D55) directed toward the two sides of the strand (21; 22; 23), or the partial strand (21.1; 21.2; 21.3; 22.1; 22.2; 22.3), respectively, are provided on the strand path between the former (16; 17; 18) and the lateral cutter (13), an analysis device (25; 27) is provided, by means of which the phase angles of repeating signals of the two detectors (DO...D55) can be analyzed as opposed to the respective target phase angles and/or relative to each other, and at least one actuator (S0...S5; A1; A2) is provided in the strand path downstream of the former (16; 17; 18) of the respective strand (21; 22; 23), or partial strand (21.1; 21.2; 21.3; 22.1; 22.2; 22.3), respectively, which influences the course of the strand, the actuator being in a logical operative connection to the analysis device (25; 27) and an actuating command can be applied to the same due to a result obtained in the analysis device (25; 27).

Description

 description

Apparatus and method for monitoring and / or regulating a strand run in a hopper assembly of a web-fed rotary printing press

The invention relates to devices and methods for monitoring and / or regulating a strand run in a funnel structure of a web-fed rotary printing press according to the preamble of claim 1 or 12 or 21 or 25.

EP 1 074 501 B1 discloses a cutting register control of strands of a plurality of former hoppers, wherein deviations measured on the strand by means of detectors, together with values measured for the individual webs in front of the hopper, are guided on single-web control elements arranged upstream of the hoppers.

In DE 39 35 614 A1 a register device is disclosed, wherein each not yet merged to the strand sub-orbit is assigned a separate control loop and the two strands to be formed from a former control circuits independent, but common to both strands control loop.

DE 103 35 886 A1 discloses methods and devices for controlling cut registers. There, two webs are guided one above the other via a former and as a strand in total, but also as layers to each other with respect to their cut register, d. H. in the longitudinal direction with respect to a section of a cross-cutting device, are regulated. For this purpose, it is possible to determine in the strand path in front of the cross-cutting device the error of the upper and the error of the lower web by means of sensors.

EP 1 619 026 A2 discloses a method with a device for triggering an image recording unit, wherein a web break is detected by a current determined position of the printed image beyond a tolerance limit of a stored reference position of an image stored in a memory deviates.

DE 42 34 308 C2 discloses a method and a device for setting a cutting register, wherein a phase position directly behind a printing unit and a phase position directly in front of a sheeter are measured by means of detectors and compared with each other.

In DE 199 10 835 C1, the signals of two optoelectronic read heads directed onto a same line of a web are compared with respect to a possible offset in order to control a cutting position of a web.

A method and a device for determining the position of a printed paper web are known from EP 1 300 243 B1, reference values for the position determination being generated from data of a prepress stage and compared with measured values.

EP 1 619 026 B1 discloses a method for detecting a web break, wherein the position of a currently recorded image triggered is compared with a stored reference position. In the event of an impermissible position deviation, a web break is concluded and, if necessary, knocking off, catching and / or shutting down the machine is effected.

The invention has for its object to provide devices and methods for monitoring and / or control of a strand run in a funnel structure of a web-fed rotary printing press.

The object is achieved by the features of claim 1 or 12 or 21 or 25 solved.

The achievable with the invention advantages are, in particular, that on the one hand a high level of security in the strand run can be achieved and on the other hand, the high demands on the cut register, especially in strong side products formed from several strands, can be met. It can be prevented that cuts of individual layers by Huttenbildung etc. move against each other.

In an advantageous embodiment, the signals from both sides of a same strand arranged - and in particular lying on a same path section - detectors with regard to possibly present strand running problems, such. Huts, beads and / or bubbles, and / or evaluated the signals of a detector directed at the strand on single-track cracks external layers, and if appropriate appropriate measures are initiated.

Embodiments of the invention are illustrated in the drawings and will be described in more detail below.

Show it:

Fig. 1 is a schematic representation of a first embodiment of a printing machine;

Fig. 2 is a schematic representation of a second embodiment of a printing machine;

3 shows a first embodiment of a cutting register control in a funnel structure;

4 shows a second embodiment of a cutting register control in a funnel structure;

5 shows a schematic representation for the determination of a cutting register error; 6 shows a third embodiment of a cutting register control in a funnel structure with a two-sided measurement on the strand;

7 shows a fourth embodiment of a cutting register control in a funnel structure;

8 shows a schematic illustration for the determination of a strand run error;

9 shows a fifth embodiment of a cut-off register control in a hopper construction with a transfer of a partial string;

10 shows a sixth embodiment of a cutting register control in a funnel structure with a transfer of a partial string and double-sided measurement.

Fig. 1 1 shows a seventh embodiment of a cutting register control in a funnel structure with a transfer;

FIG. 12 shows an eighth embodiment of a cut-off register control in a funnel design with a transfer of a partial line; FIG.

13 shows a ninth embodiment of a cut-off register control in a funnel design with transfer of two sub-strands;

14 shows a tenth embodiment of a cut-off register control in a hopper structure with two hopper levels;

15 shows an eleventh embodiment of a cut-off register control in a funnel structure with a funnel plane having three funnels; 16 shows a twelfth embodiment of a cut-off register control in a funnel structure with a funnel plane having three funnels;

17 shows an embodiment of a web break monitoring;

FIG. 18 shows a further embodiment of a web break monitoring system; FIG.

FIG. 19 shows a schematic illustration of the measuring principle of the web break monitoring; FIG.

FIG. 20 shows a representation according to FIG. 17 with a torn outer layer; FIG.

FIG. 21 shows an embodiment of a web break monitoring device before a hopper inlet; FIG.

Fig. 22. another embodiment of a web break monitoring;

FIG. 23 shows a further embodiment of a web break monitoring system; FIG.

1 and 2 show by way of example in plan view embodiments of a printing machine designed as a web-fed rotary printing machine, in particular a newspaper printing press. The printing press has at least one printing unit 01 with a plurality of, in particular stacked, printing units, in which a web 02 originating from a roll changer 06, for example, is printed on both sides in multiple colors. Forming and transfer cylinder 03; 04 of, in particular as a printing tower with at least eight (eg, both sides four) pressure points running printing unit 01 have an effective bale length, which at least four, z. B. four or six juxtaposed printed images of stationary newspaper pages or at least four juxtaposed printed images of horizontal printed pages, eg magazine pages, correspond in tabloid format. When printing, the forme cylinder 04 then has on its lateral surface, for example, one or more printing plates with a total of side by side on four print images of corresponding printed pages in tabloid or newspaper format.

After printing, the web 02 passes through a so-called. Superstructure 07, in which they are longitudinally cut by a longitudinal cutting device 08 in partial webs, about possibly provided turning devices 09 z. T. laterally offset and brought to another flight, possibly aligned register means 1 1, the partial webs aligned relative to each other in the longitudinal direction, and finally folded in a funnel structure 12 into strands, and these strands then a cross cutter 13, z. B. the cross-cutting device of a folder 14 are supplied.

In Fig. 1 and 2 schematically two advantageous embodiments for the preparation of the above components are set forth: In the embodiment of FIG. 1, the funnel assembly 12 is arranged in the machine alignment and in principle after leaving the printing units 01 by "straight run" of the tracks 02 and In the case of partial webs to be turned, the turning device 09 or the turning devices 09 is preceded by at least one longitudinal cutting device 08. In the event that none of the partial webs have to be turned, the longitudinal cutting device 08 or additionally an optional longitudinal cutting device 08 can be used directly In the embodiment of Fig. 2, the hopper assembly 12 is rotated 90 ° with respect to its projected into the horizontal direction of curvature for machine alignment and after leaving the printing units 01 by an angular web over a turning bar a Wendeeinrichtun g 09 reachable. In the case of partial webs to be turned, the turning device 09 or the turning devices 09 is preceded by at least one longitudinal cutting device 08. In the event that a turning bar is provided with an effective length, which in projection on the incoming web at least the width of a maximum to be printed web, z. B. four or six juxtaposed printed pages in lying tabloid or standing newspaper format (broadsheet) corresponds, the said longitudinal cutting device 08 or an additional, optional optional longitudinal cutting device 08 may be arranged directly in front of the hopper inlet, so after turning.

The funnel structure 12 has in each of the embodiments at least one funnel group with a plurality, in particular two or three, juxtaposed folding funnels 16; 17; 18 on a same funnel level. The term "at the same level" here means that the funnels of this funnel plane are located in the same machine plane and / or are at least cut by a same horizontal plane in addition to the main cutting line through the aforementioned longitudinal cutter 08 can directly upstream of the formers or Slitting devices 19 are also provided directly after the formers which longitudinally cut the partial webs in the alignment of the fold back with a funnel center section on so-called secondary cutting lines Main cutting lines from the longitudinal cutting device 08 and the auxiliary cutting lines from the longitudinal cutting device 19 can also be structurally combined as a common longitudinal cutting device 08, 19 arranged directly in front of the funnel inlet.

Does the press as in the present case a plurality of formers 16; 17; 18 and thus several resulting strands 21; 22; 23, which are to be summarized before or during running into a finishing stage and cut across, so is due to the successive to laying print images on the one hand, a correct relative position of the strands 21; 22; 23 viewed in the longitudinal direction a decisive quality criterion in the finished product. Especially with fluctuating or changing operating conditions - such as when starting up the machine and / or material change (other paper) and / or production changes (changing number of Teilbahnlagen and / or changing Printed image) - can change the relative longitudinal alignment, and thus the cut register of the strands as a whole to each other by the associated changes in the web tension and / or elongation. Second, there are funnel structures with several, and thus deflections experienced strands 21; 22; 23 the risk of errors associated with the redirecting and conveying, z. B. displacements of individual outer layers of individual strands (eg., The formation of so-called. Huts 15), or thirdly even the risk of web breaks of outer layers of individual strands.

In the following embodiments of funnel structures 12 or a strand run control or monitoring - depending on the level of expansion - the o. G. Problems (longitudinal register and / or transverse register and / or Huttenbildung and / or strand breakage) each individually, in groups or all solved together. In advantageous embodiments, in principle, the means for cutting or longitudinal register control, the means for monitoring and elimination of strand run errors (huts 15, etc.) and devices for web break monitoring each individually for themselves, or in advantageous developments simultaneously, in particular at least partially using the same Detectors, find application.

According to the embodiments are for the application of the cut register control (but also advantageous for strand monitoring) on the web downstream of the former 16; 17; 18 (16 ';17'; 18 ') several control loops RO; R1; R2; R3; R1 '; R2 ';3a; R 3b; 4a; R 4b; (R5;) R1 1; R22; R33; R55, in particular at least one of the number of formers 16; 17; 18 (16 ', 17', 18 ') of the funnel structure 12 corresponding number of control loops RO; R1; R2; R3; R1 '; R2 ';3a; R 3b; 4a; R 4b; (R5;) R1 1; R22; R33; R55 (in short: R0 ... R55) and / or at least one of these number of funnels corresponding number of actuators SO; S1; S2; S 3; s3b; S4a; S 4 b; S5 (in short: S0 ... S5) and / or at least one of these number of funnels corresponding number of detectors DO; D1; D2; D3; D1 '; D2 ';D3;D33;D4a;d4b;D5;D33; D55 (short: D0 ... D55) provided.

In Fig. 3 and 4 examples are shown which show only means for cutting register control. With regard to the cut-off register control, at least one number of control loops R0... R55 corresponding to the number of hoppers preferably act on one control element S0... S5 which is independent of other control loops R0... R55. This ensures that, on the one hand, the ultimately resulting total strand can be aligned correctly with the knife, and, on the other hand, the strands can be aligned relative to one another without complicated dependencies. The control circuits R0... R55 are preferably designed to be logically independent of register devices 1 1, possibly provided upstream of the funnel structure 12.

The control circuits R0... R55, which concern the cutting register, are preferably control circuits operating independently of one another in their logic - possibly except for an optional signal connection in the case of an actuator RO on a strand bundle or the total strand, such as, for example. in the embodiment of FIG. 3 or 9.

It is particularly advantageous if the detector D0... D55 of a strand or partial strand with respect to the strand path is arranged as close as possible to the location of a downstream merging with one or more other strands or partial strands. Preferably, the detector D0 is ... D55 between the location of the merging, for example a roller 24 or a pair of rollers 24 or a transfer roller 28, and the upstream last upstream guide element, for. B. a deflection roller 20 or a transfer roller 29. The detector D0 ... D55 may be arranged in the case of transferred sub-strands downstream of the point of merging on the associated sub-strand associated side (eg, Fig. 1 1, 12). In an advantageous embodiment, all measured values for the strands, z. B. both for strands by detectors D0 ... D55 removed, which on the last section before a downstream of the funnel structure 12 last place one Zusammenführens are arranged. The strands or partial strands mentioned in the examples of FIGS. 3 to 20 are preferably multilayer strands or partial strands which contain a plurality of layers of webs or part webs guided over one another, in particular via a former, or at least the two layers of a longitudinally folded web or part web ,

Figs. 3, 4, 6, 7 and 9 to 13 show embodiments with a two former 16; 17 having funnel plane, wherein on the funnel structure 12 accumulating tracks 02 upstream in partial webs cut longitudinally, and via the formers 16; 17 led to strands 21; 22 folded or - in the case of a funnel center section - are laid on top of each other as a one-side partial web strip.

In Fig. 3 are downstream of the former 16; 17 now two control loops RO and R1 provided for cutting register control, in this first embodiment one of the single strands 21; 22 a detector D1 and an actuator S1, and in addition the total strand 24, a detector DO and an actuator SO is assigned. The total strand 24 associated actuator SO is in this case preferably designed as a means which changes the relative angular position of the cross cutter 13 with respect to a current, correlating with the position of the forme cylinder 03 desired angular position. This may be a corresponding gear or an axially relatively movable helical gear on the drive train, or - especially in the case of one of the printing unit 01 mechanically independent drive - a correction value in a control means which counteracts the cross cutter with a determined on the total strand 24 cut register error. In the case of independent drive via an electronic, z. B. virtual, leading axis, the setpoint formed from the rotating angular position setpoint of the leading axis, a corresponding, the cut register deviation corresponding correction in the relative angular position can be switched. The one of the two strands 21, which are ultimately to be recombined. 22 associated actuator S1 is as a the path length between Funnel tip of the respective former 16; 17 (18) and the location of merging the strands 21; 22, z. B. a roller 24 or advantageously a roller pair 24, in particular a positively driven train 24 or two positively driven rollers 24, influencing actuator S1 formed. In the present case, this acts on a - for example on a lever pivotally mounted about a pivot axis parallel to the axis of rotation - roller 20, eg register roller 20. The roller 20 is preferably forcibly driven rotationally, ie it is mechanically z. B. coupled to a drive motor. However, it can also be moved in another way by an actuator S1 guide element 20, for. B. linearly movable roller 20, eg register roller 20 may be provided. The actuator S1 represents a drive mechanism, not shown, via an associated control according to a signal resulting from the control loop R1. This is advantageously also representative of the following actuator S2; S 3; s3b; S4a; S 4 b; Apply S5. As shown in FIG. 3, in the case where the strand 21, which is to be controlled with respect to the cut register, is formed; 22 a control loop R1 is associated with only one, directed to one of the two side surfaces or outer layers detector D1, this is advantageously directed to that side or outer layer, which with the surface of the directly upstream (partially) looped roller 20; 24 is in touching contact - also called "inner side" in the following, which is also to be transferred to other examples.

In an embodiment according to FIG. 4, instead of the control loop RO allocated to the main line 24, each of one of the former 16 is now in the process of being displaced. 17 (18) -derived strands 21; 22 (23) a control loop R1; R2 (R5) with detector D1; D2 and actuators S1; S2, in particular register rollers S1; S2, assigned. Thus, by adjusting both actuators S1; S2, a correction of the position of the total strand 24 to the position of the knife of the cross cutter 13, and by adjusting one of the two actuators S1; S2 or by different adjustment of the two actuators S1; S2 is a relative position of the strands 21; 22 be corrected. FIG. 5 diagrammatically shows a desired-actual comparison of detector signals with respect to a cut-off register control, wherein a) represents by way of example a snapshot of a setpoint signal waveform (periodically recurring reference pattern M _r generated by the printing). The phase position of this desired value curve relative to the reference is maintained in a memory, for example, after a status determined by the printer as "good." The actual phase position is then compared in an evaluation device continuously or clocked with the phase position of the desired value curve. History shows, for example, a deviating from the desired condition to Δ process value, ie, a current pattern M _a a correction by the to be driven actuator S1;. S2 ... is now carried out in such a way that the two waveforms are (again brought into the same phase with each other or are.

Fig. 6 shows an embodiment, wherein the two strands 21; 22 is a respective control loop R1, R2, and in addition to the total strand assigned a separate control loop RO. In this embodiment can be corrected by the control loop RO in faulty position of the total strand 24; There are unnecessary and / or unnecessarily large travel paths in the strands or the associated control loops R1; R2 avoided.

In an advantageous embodiment of the control circuits R1; R2 (R3, etc.) for the longitudinal or cut register are these or a part of these, as shown in Fig. 7 by way of example for control circuit R1 and R2 (indicated as R1 1 and R22), with two detectors D1; D1 1; D2; D22, ie in each case with a detector D1; D1 1; D2; D22 per outer layer or strand side of the respective strand 21; 22 formed. There is a monitoring of the two outer layers of the respective strand 21; 22. The two outer sides of one of a former 16; 17 derived strand 21; 22 come from here - as long as they are not divided after the funnel or are combined with sub-strands originating from other funnels (see below) - of a same, in particular the highest, on the corresponding former 16; 17 guided web or sub-web 02. With the two-sided monitoring can be achieved higher accuracy in the determination of the cutting register error. In the evaluation 27 is z. B. by averaging over the two strand sides or by means of another mathematical method (eg weighted averages), the actual phase position of the strand having a certain thickness 21; 22 monitored as described above with respect to the desired phase position and from the result, if necessary, a corresponding actuating signal to the actuator S1; S2 given.

In one embodiment of the strand run monitoring and control (eg additionally shown in FIGS. 6, 7, 10 to 16 for the cutting edge control), the same occurs on both sides, alone or in conjunction with the cut register control and / or a layer breakage monitoring Strand monitoring detector assembly monitoring the strand 21; 22 on smelting or blistering and counteracting. Both sides are checked for agreement with the pattern specified for the correct position and possibly existing deviations .DELTA.l; Δ2 determined by the respective desired position (FIG. 8). If the two sides deviate to a different extent from the specification or deviates only one side, ie if the relative phase position is shifted, a difference Δa results in the deviation. From a certain height in this difference Δa, a reaction is triggered. In this case, for example, only a warning can be displayed, or preferably a manipulated variable - for example, the speed or lead of a respective strand 21; 22 transporting roller 20; 24 - can be changed. A common part of the shifts in the phase angles of the two sides is then z. B. as a cutting register error on the corresponding control loop R1 ..R55 (if present) by means of the relevant actuator S1; S2, etc. and the difference in the deviation over a speed change of a driven roller 20, 24 of the respective strand 21; 22 on the strand path downstream of the former 16; 17th The monitoring and control of the strand promotion is thus based on the system that a strand is observed and evaluated with respect to a relative positional deviation (difference in the deviations) between its two sides. If there is a deviation, it is possible to conclude a bubble or hut 15 in the upstream strand path. Such huts are preferably formed directly upstream of a partially wrapped by the strand roller 20; 24, wherein the hut 15 usually in front of the roller 20; 24 on this roller 20; 24 facing side of the strand, ie at the with respect to the looped roller 20; 24 inner layer, forming. In this context, looping or partial looping means, for example, a contact of the strand on the roll 20; 24 on an angular range of z. B. at least 15 °, in particular at least 25 ° of the calf circumference.

As a result, at least one of the two detectors D1; D2 ... on one of the wrapped rolls 20:24 - z. B. the directly - downstream strand section on the roller 20; Directed facing 24 strand side. The other, on the of the roller 20; 24 directed strand side detector may be on the same strand section downstream of the roll 20 to be controlled; 24 or on the strand section in front of the roller 20; 24 may be arranged. This is shown schematically in Fig. 5 with respect to the roller 20 with the detector D2 and the dashed lines indicated detector upstream of the roller 20. With the also indicated by dashed lines detector DO downstream of the roller 24 in combination with signals from the detector D22 formed before the roller 24 hut 15 (bubble) can be detected, and reduced or eliminated by regulating the drive of the roller 24.

For this purpose, the two detectors D22 and D2 or DO and D22 (or in the following more pairs) in pairs part of a control loop RA1; RA2; RAO and signal technology connected to an evaluation and / or control unit 25, through which the signals of the detectors D22 and D2 or DO and D22 in z. B. og way evaluated become. The evaluation and / or control unit 25 in turn acts on a rotary drive AO; A1; A2 or to a drive control of the rotary drive AO; A1; A2 of the looped roller 20; 24. If a deviation (difference .DELTA.a ≠ 0) is detected, then the speed or speed specification, ie ultimately the overfeed, of an upstream roller 20, in particular of the detector which directly observes the strand inner side, is determined by the evaluation and / or control unit 25. 24 increased. As a result, the hut 15 or bubble is "pulled out" of the strand.

The evaluation and / or control unit 25 may be formed in one or more parts and contains an electronic circuit and / or computing means which a comparison of the two signals directed to the two sides of the strand detectors D22 and D2 or DO and D22 to each other and / or each to a target phase position, and based on the comparison, a setting command (eg, a value for increasing a target speed to a drive control or a value for setting a transmission) to an actuator of the roller 20; 24 issues. As an actuator for this control loop, the respective drive AO; A1; A2 of the roller 20; 24 to understand.

In the examples of FIGS. 6, 7, 10, 11, 12, 13, 15 and 16, such control loops RA0 to RA5 are shown for controlling and controlling the strand feed in addition to the control loops RO... R55 relating to the cut register. Of course, these control loops RAO to RA5 can be provided for monitoring and control of the strand production alone. The control circuit RAO shown in FIG. 6 merely by way of example with respect to a strand 21 can also be provided on the other side with an additional corresponding detector for the strand 22. Moreover, such, the rollers 24 regulating control loops DO can also be provided for the other examples.

If both control loops RAO to RA5 are provided for monitoring and controlling the strand feed and control loops R0 ... R55 are for cutting register control, Thus, advantageously at least a portion of the detectors can be assigned to both types of control circuits - or the signals coming from these detectors are evaluated both in a control circuit RAO to RA5 for monitoring and controlling the strand conveying and in a control loop R0 ... R55 for cutting register control and further processed.

In an advantageous embodiment of the funnel structure 12, this is with transfer devices 28; 29, z. B. rollers 28; 29 formed for strand splitting and / or strand mixture. The rollers 28; 29 are, like the o.g. Rollers 20; 24, preferably as rotationally driven by a drive rollers 28; 29 trained. Here is a funnel center section for the webs 02 of the strands 21 to be divided; 22 provided - a splitting and / or mixing of strands or partial strands of different formers 16; 17 (18) possible to z. B. a variable "book design", ie an increased variability in number of layers and / or order and / or assignment without additional turning to achieve.In this case may be provided in one or more of the strand paths an exemplified only in Fig. 9 stapler 31 through which a partial strand 21 .1; 22.1 coming from a former 16; 17 (18) can be guided together with the strand 22; 21 or sub-strand 22.2; 21 .1 coming from the other former 17; 16 (18).

The arrangement of one or more staplers 31 on one or more of the strand paths -. B. a stapler 31 on Strangweg of reinforced by the sub-strand 21 .1 strand 22 and / or a stapler 31 at Strangweg of the sub-strand 21.1 diminished strand 21 .2 and / or a stapler 31 at a strand path of a partial strands 21, the first ; 22.1 from two formers 16; 17; 18 formed strand 32 (eg, Fig. 1 1, 12) - was not always explicitly mentioned or shown in these variants in the following examples, but is in accordance with the product design advantageous variants respectively to the versions accordingly apply.

FIGS. 9 to 13 show exemplary embodiments of the possibility of strand splitting and / or strand mixing. The transferred strand 21 .2 represented in the example can, as indicated by the parenthesized expression (21), also be a completely transferred strand 21 (22) in alternative operation.

In Fig. 9 and 10, in each case in addition to the two the strand paths of the strands 21; 22 associated control circuits R1; R2 or R1 1; R22 a separate control loop R3 or R33 for the decoupled sub-string 21.1 and in Figure 10 in addition to the two the strand paths of the strands 21; 22 associated control circuits RA1; R2 or a separate control circuit RA3 assigned to the decoupled sub-string 21.1. The "one-sided" or "two-sided" control loops R1; R2 or R1 1; R22 or to the control loops RAO; RA1; RA3 previously mentioned is to be applied accordingly. In the embodiment for splitting and / or mixing are below the formers 16; 17 at least two transfer devices 28; 29, z. B. rollers 28; 29, provided via the one a roller 29 umschlingender sub-strand 21 .1 separated from the remaining sub-strand 21 .2, and deflected over the other roller 28 again and with a strand 22 or sub-strand of the other former 17; 16 is merged. To check the cutting register position and / or the strand run of the decoupled sub-string 21 .1 and to correct it if necessary, this decoupled sub-string 21.1 is a loop R3 or R33 ("one-sided" or "two-sided", see above) with one or two Detectors D3; D33 and an actuator S3a; S3b and / or a control circuit RA3 with two, possibly the same detectors D3; D33 and an actuator A3 (drive A3) provided. In the illustrated case, the actuator S3a; S3b act on the above-mentioned type as a movable register roller formed transfer roller 29. In order to provide a better overview, in FIG. 9 to 18 it is no longer all the repetitive parts of the figures that are identified by reference numerals. By maintaining the symbolism, however, these are always recognizable. FIG. 11 shows a variant of the embodiment according to FIGS. 9 and 10, wherein the control circuit R3; R33 of the decoupled sub-string 21.1 on the transfer path no detector is assigned, but only after merging of this sub-strand 21.1 that side of the resulting strand 22.3 is detected, which is formed by the sub-strand 21 .1. Here, as shown on the inside of the resulting strand 22.3 directed detector, z. B. the detector D1 of a formerly two-sided control loop R1 1, are used. In dashed line shown variant, the signal of the internal detector D1 of a two-sided control loop R1 1 both the control circuit of the decoupled sub-string 21 .1, and the two-sided control circuit R1 1 of the strand 22 are supplied. In FIG. 12, the state of FIG. 11 is an example of the extraction of a partial strand 22.1 from the strand 22 of the other former 17; 16 set out. The examples of FIGS. 9 and 10 are to be transferred in the same way to the opposite case. Regarding the control circuits RA1 and RA2, the one mentioned with reference to FIG. 7 applies.

Fig. 13 shows a further embodiment with a transfer device 28; 29, in each case via rollers 29 a sub-strand 21.1; 22.1 decoupled, and are summarized by rollers 28, the two sub-strands to a strand 32 or are. The remaining (residual) strands 21.3 and 22.3 are z. B. regulated according to FIG. 7. Respective control circuits R4a and R4b, each having one actuator S4a and S4b and at least one detector D4a and D4b, are associated with the two decoupled subsections 21 .2 and 22.1. In the event that the actuators act on the transfer devices 29 as in Fig. 9, the detectors are arranged on the transfer paths. In the illustrated variant, however, the actuators S4a and S4b act on the transfer devices 28, so that the detectors D4a and D4b are arranged on both sides of the resulting strand 32. Depending on the production requirements, it can advantageously again be a stapling device on each of the paths of the three strands 21 .3; 22.3 and 32, or only in the way of the middle strand 32, or in addition to middle at one of the other two strands 21.3; 22.3, or only at the two (residual) strands 21.3; 22.3 be provided. Regarding the control circuits RA1 and RA2, the one mentioned with reference to FIG. 7 applies. In addition, - for reasons of clarity not shown - on the "outsides" of the sub-strands 22.1; 21.1 be directed further detectors, which then form together with the detectors D4a and D4b respectively acting on the drives of the rollers 28 control circuits for monitoring and control of the strand conveying can.

In Fig. 14 is an embodiment of the funnel structure 12 with two each more, here two formers 16, 17, 16 '; 17 'side by side, in the vertical direction staggered funnel planes represented. That to the strands 21 and 22 and the different embodiments for the design and arrangement of control loops RO; R1; R2; R1 1; R22 for the cut register and / or control circuits RA1; RA2 for the "normal operation" without mixing or splitting is to be applied individually to the strand guides of the strands 21, 22 and 21 ', 22' of the two funnel planes of a funnel plane from the preceding embodiments. 7, to the rollers 20 of the strands 21, 22, 21 ', 22 guided in normal operation (without mixing and / or dividing), which, however, for the sake of clarity, is indicated only by second detectors shown in dashed lines The embodiments of the undivided strand guide set forth above may be deflected as a whole and passed between the lower formers 21, 17 (18) of one or more of the upper strands 21 'and 22' For the strands 21, 22 of the two lower formers 16, 17 are in an advantageous , Not shown embodiment with appropriate use not shown transfer facilities the training with decoupling partial strands 21 .1; 22.1 according to the examples of FIGS. 9 to 12 applicable. The same applies to the strands 21 'and 22' of the upper funnel group. Here, depending on the arrangement of the partial strands 21.1; 22.1; 21.1 '; 22.1 'acting actuators on the sub-strands 21 .1; 22.1; 21.1 '; 22.1 'directed detectors as in the above described To arrange design variants. In the event that one of the upper strands 21 '; 22 'not outside, but between the lower formers 16; 17 is passed, then the relevant control circuit FM '; R2 'is assigned a detector Dx' or Dy 'arranged on the path extending between the funnels. These detectors Dx 'and Dy' can in the case of strand division of an upper strand 21 '; 22 'also for the corresponding control circuit R3a'; R3b '; R4a '; R4b 'be used. Although only the "one-sided" control circuits for the cut-off register control are shown in Fig. 14, the control loop RO indicated by dashed lines may optionally be provided additionally or instead of one of the string-related control loops (see corresponding to Fig. 3). 4, 6 and 7).

In Fig. 15 is the embodiments with two juxtaposed formers 16; 17 or 16 '; 17 'exemplified on a funnel group with three juxtaposed formers 16; 17; 18 based on two-sided control loops (RO) R1 1; R22; R55 and control circuits RA1; RA2; RAδdargestellt. The variant not shown here with respect to unilateral control loops and / or the embodiment with means for strand division or strand splitting and / or the arrangement of one or more staplers and / or the arrangement of two funnel planes with then three formers is correspondingly applied according to the above embodiments.

Fig. 16 shows in a further variant of an embodiment with three juxtaposed formers 16; 17; 18, but in addition to the roller 24 and the roller pair 24, a further (in particular by means of drive positively driven) roller 33 or a pair of rollers 33 is provided, on which or on which two of the three strands 21; 22; 23 can be summarized before they are combined downstream with the third strand 22. The two rollers 33, as well as the two rollers 24 in the preceding examples, preferably not anenander over the strands such that they clamp them. In the strand path between merging the two strands 21; 23, a stapler 31 may be provided. In principle, instead of or in addition thereto, a stapling apparatus can be arranged on the strand path of the third strand 22. The above-mentioned embodiments of the training as one- or two-sided control circuits and / or the execution of means for strand division or strand splitting and / or the arrangement of one or more staplers and / or the arrangement of two funnel planes with then three formers is accordingly according to the above stated embodiments apply.

In the illustrated examples, the cross cutter 13 is a part of the hopper assembly 12 downstream folding apparatus 14 and is formed by a cooperating with a knife cylinder 37 transport cylinder 38, which in turn cooperates with a jaw cylinder 39 to form a transverse fold. However, the cross cutter can also be formed in other ways, and be formed with or without downstream folding.

The control circuits mentioned above and below are preferably based on the following procedure:

As a result of the geometric distance between the respective detector D0 ... D55 and the location of the cross-cutting, the phase of a point corresponding to the printing length of a point or a feature to be considered on the web or the strand in stationary operation in a fixed relationship. The desired phase position, which can be determined, for example, by geometric evaluation or empirically (eg when the machine is put into operation or during a test run of a production), is characterized by the fact that, in the case of this specific desired phase position, between the considered feature (or a pattern) and a cyclic cycle of the Querscheideinrichtung the cut downstream at the desired location on the web or strand takes place. In stationary operation and / or without the different influences during the printing process on the substrate paper or the different properties of different paper types, it would thus be sufficient for a specific production with certain strand guides the actuators only adjust accordingly without this would be a rule would be required.

However, with changing operating conditions - e.g. changing moisture and / or amount of ink, changing transport speed, changing paper types, etc. - varies the paper stretch and thus the related to a certain path section location of the desired cutting line. This has now shown that the relative phase angle between the detected feature (or pattern) and the stroke of the cross cutter changes. The relevant control circuit is now designed such that the deviation from the desired phase position registered, and the associated actuator (actuator for the cutting register or drive a roller 20, 24 etc) is acted upon such that the deviation in the phase position (cut register) or the Difference in the phase position of two strand sides) is counteracted.

Especially in funnel structures with multiple formers and possibly several funnel planes are long and z. T. several deflections having strand paths the result, which must ultimately be aligned correctly when summarizing all together, and in addition to the cross-cutting device, and wherein the individual layers must be mutually correct despite deflections. In this case, different strand paths can be subjected to different fluctuations. In order to be able to meet the high requirements without high start-up waste, in particular during startup of the machine in such multi-hopper systems under unsteady conditions, as shown in the embodiments, the control circuits for the cutting register and / or for monitoring the strand run are provided. Ideally, the detectors viewing the strands are arranged as far downstream as possible in the strand path, ie as close as possible to the knife of the cross cutter.

The above-mentioned control circuits R0 ... R55; RA1 .... RA5 are preferably based on optical Measuring methods, ie the detectors D0... D55 are preferably designed as optical detection devices, which are directed onto the respective strand surface and detect the light reflected therefrom.

In a simple embodiment, the detector D0 ... D55 has a measuring head, also called a cutting register measuring head, which has a light-sensitive sensor (eg one or more photodiodes). An additional illumination source can be provided. The light-sensitive part of the measuring head is, for example, directed onto the surface of the strand via suitable optics-punctiform or a region of small diameter-and thus scans a more or less wide strip on the strand moving past it. The assigned evaluation can z. B. continuously record the caused by the print image bright-dark pattern, which is then compared with the pattern of the target phase position. The phase position (or a "snapshot" for the phase position) of a periodically recurring pattern applied to this measurement (eg a mark) or a light-dark pattern from the periodically recurring printed image - or certain features of this pattern - is then included the target phase position of the pattern or the corresponding feature of the pattern compared, and counteracted in deviation from the desired relative phase position of this deviation as described above by the relevant control circuit with the actuator.

In the case of an embodiment of the measuring head with a plurality of independently readable sensor areas, d. H. the possibility of a spatial resolution, can also be advantageous in terms of the clock of the cross cutter triggered snapshot, which is compared in the evaluation of the controller with the pattern of the setpoint phase position. The sensor areas are then formed, for example, photodiodes.

In the above-mentioned simpler, "selectively" the print image (or pattern) and / or a brand scanning design of the sensors D0 ... D55 this is in an advantageous variant arranged movable transversely to the strand running direction. Since only a narrow strip on the passing print image is detected, it is advantageous to the detector D0 ... D55 z. B. in production with varying web and thus strand widths and / or to be able to adapt to the position of the marks or to the location of a suitable printed image strip at different print images.

In a more comfortable version of the detector D0 ... D55 this is as an image sensor, z. B. as a CCD chip or as a CMOS chip formed. In particular, the detector D0... D55 can have as a sensor a line camera or an area camera. In particular, the -. B. formed as an image sensor or at least as a line scan detector D0 ... D55 be designed as a print image at least on a significant scan width detecting sensor. Significant scanning width here means a width which, for example, amounts to at least a quarter of the maximum strand width to be produced in the machine and the funnel structure. In a further improved embodiment, the scanning corresponds to at least half of this strand width and covers z. B. from the center of the strand from half the strand width. In this way, the detector D0 ... D55 can be fixedly arranged in a simple design.

The pattern to be observed (mark or printed image detail) and / or the desired phase position of this pattern can be advantageously carried out using data, in particular image data from the prepress. In particular, it may be advantageous to determine the position of a strip to be detected with respect to a direction transverse to the strand direction, and, in the case of the laterally movable detector, to align it accordingly. When viewing an image area through a surface or line camera, the print image section to be considered (in the transverse and / or longitudinal direction) can also be determined via the prepress. In the prepress stage, the distances of the characteristic patterns intended for evaluation are known at the cutting edge and can therefore be used to form the desired phase position and / or for the lateral adjustment of the detector D0... D55. In an advantageous in connection with the preceding embodiments of Figures 3 to 16, but also considered by itself advantageous embodiment, at least one strand 21; 22, but preferably each of a former 16; 17 (18) incoming strand 21; 22 on at least one side, in particular at least on the "inner side" particularly vulnerable to web breakage of a single layer, a detector D1, D2 and an evaluation device 34. In combination with the devices described above, the detector D1, D2 can advantageously also be used for a The latter is adapted to receive a periodically recurring pattern M _a (or at least features of this pattern) currently recorded by the detector D1; D2 with a previously recorded M _{a n} and / or stored Pattern M _r (or features of this previously recorded pattern) (see also above) For this purpose, the evaluation device 34 has corresponding storage and / or computing means ) abruptly beyond certain tolerances of previously recorded and / or stored pattern (or the considered feature of this previously recorded pattern), so can on a crack of the outer layer of the considered strand 21; 22 closed. In Fig. 19 is a schematic representation of one of the detector D1; D2; etc. track shown as a light-dark pattern. In the case of a crack of this layer located on the inside outside the detector D1, D2, the detector suddenly sees a completely different pattern from the previously detected pattern. This is illustrated in FIG. 20 by the two schematically illustrated light-dark patterns. As long as there is no crack, the detector reads D1; D2 the respective track as a light-dark pattern. Is it coming? B. in tabloid productions, ie at strands 21; 22 with partial webs cut open in the area of the secondary cutting lines - for the tear of the outer layer (in particular on the "inside") and possibly as a result of winders, the corresponding measuring head reads in the pattern of the layers lying underneath , with the Print image periodically recurring information such as a print image start, with the print image frequency (machine speed) or a multiple snapshots triggered for this purpose or even over a certain periodic, correlated to the print image frequency (the normal state) period integrated or summed value etc.

In principle, the currently recorded pattern can be compared with a reference pattern M _r retained in a memory unit in a clocked manner relative to the machine speed. This reference pattern could be obtained from data of the prepress stage or from an initially received, and for "good", found pattern and be stored in a memory. Preferably, the currently recorded model M _a or its phase position is, however, clocked with a directly or in each case some ( n) printed images previously lying and possibly only temporarily stored pattern M _{a n} (or features these previously recorded pattern) compared.

The o.g. "Erratic" deviation and thus the criterion for a bridge can be determined by a limit value for a permitted deviation, which is preferably variably determinable If the deviation goes beyond this, then a path or layer crack is concluded.

However, the erratic deviation is preferably determined by the magnitude of the deviation relative to a measure of the interval at which the change took place, which in principle may be a time span or else a specific number of subsequent pressure sections underlying the change. Both perspectives should be included here under the term "gradient". The gradient of the change can thus be formed from the magnitude of the change per period of time considered or from the magnitude of the change per number of printed image sections considered. In an advantageous embodiment, for example, the pattern M _a (or feature) of the currently measured print image with the pattern M _a- (feature) of the directly before measured print image compared. In principle, however, the currently obtained pattern can always be used with a respective n print images past pattern M _a . _n (with n = 1, 2, 3, etc, but advantageously n <20).

If the result is the diagnosis of a web break in one of the evaluation devices 34, this result can be output, for example, via an output interface 36 to a display and / or warning device of the printing press, in particular at the control station, and / or it can automatically be a direct control action. For example, a stop of the machine and / or a shutdown of the endangered guide element - be issued to a relevant control. Preferably, the output of the evaluation devices 34 acts on a machine control and causes a knocking off of the affected web by means of a stripping device not shown and / or the triggering of a safety gear and / or even a shutdown, in particular the initiation of an emergency stopproutine, at least of the web run of the relevant strand 21st ; 22 affected printing machine part.

In Fig. 18, an embodiment according to FIG. 17 is set forth, but with the difference that here on both sides of the strand 21; 22 is measured and evaluated. Here, by way of example, by the reference numerals 25 and 27, the previously described control loops R1; R2 for cut-off register control and RA1 and RA2 for strand run monitoring indicated, which may be provided separately for sheet breakage monitoring individually or both.

In the event that the embodiments illustrated with reference to FIGS. 17 to 20 for determining cracks of individual layers in conjunction with one or more embodiments of the strand register and / or strand control from FIGS. 3 to 16 are to be used, it is advantageous to for the evaluation of the register control and / or line control and for the evaluation with regard to a possible crack per line the same detectors D1..D55 or their signals are to be used. The Evaluation units 34 can then optionally into the relevant evaluation units 25; Be integrated with the associated control loops.

The described device and procedure for position breakage monitoring on strands 21; 22 downstream of a former is in another advantageous embodiment on the detection of a web break, d. H. a web break monitoring, on tracks 02 or longitudinally cut partial webs 02, so web strands 02 (short: Srtränge 02 or sub strands 02) apply. The above to Fig. 17 to 20, as well as for the training of the case here on the web 02 or sub-web 02 directed detector D1; D2 and the evaluation of the measured signals according to their patterns or characteristics is to be applied accordingly here. This device for detecting a web break can be combined in the manner shown in FIG. 3 to 16 with a, but in particular one-sided control loop RO ... R5) for the cut register of the web 02 or part web 02, then preferably again a self-detector D1 ; D2 the signal for web break detection and cut register control is used. In this case, the control circuit for the cut register acts on the drive of a register device 1 1, in particular a movable in the web direction register roller.

In the following FIGS. 21 to 23, examples of web break monitoring are shown using already described above in connection with the sheet breakage monitoring. The printing machine shown schematically in Fig. 22 is, for. Example, in addition to the existing in FIGS. 1 and 2 units exemplified a dryer 41 and a cooling device 42. Funnel structure and folder are indicated here only symbolically.

In a first embodiment of the web break monitoring, the detector D1 is directed to a web or sub-web 02, which is not yet combined into a bundle with other (sub) webs. The detector D1 takes -. In a stripe corresponding to the field of view - optical signals (eg light-dark) corresponding to those in Machine speed on passing print images. In trouble-free operation "sees" the detector D1 periodic patterns M _a (or particular features of the pattern) pass, as for example in Fig. 21 is exemplified with a gradient of a pattern M _a. The pattern M _a currently obtained is In this case, the pattern M _{a n} (n = 1, 2, 3, etc, but advantageously n <20) is always compared with a respective n print images (or the print images of n form cylinder circumferences) Pattern M _a (or characteristic) of the currently measured print image is compared with the pattern M _a- i (feature) of the print image taken directly in front of it The pattern or feature of the previously recorded print image is cached for this purpose, for example, for a time period correlated with the machine speed and then, according to the machine speed, clocked in a time-delayed manner with the currently obtained pattern M _a or with its phase position n. The buffer may be formed, for example, as a data memory 43 in the form of a ring memory 43 for the n images to be stored or form cylinder circumferences. The clocking can be obtained, for example, from an encoder on a component 02 of the printing press that is synchronized with the web 02, or else from a leading axis movement of an electronic or virtual leading axis. If the comparative patterns M _a ; M _a . _n or their phase angles, there is no interference. The two patterns M _a , which are considered to each other, diverge; M _a . _n but over a fixed, but advantageously variably adjustable threshold in their pattern M _a ; M _a . _n and / or their phase position from each other, or exceeds a gradient for the change of a predetermined limit for the gradient (see above), then z. B. a warning message and / or it affects the output of the evaluation 34 on a machine control and causes a knocking off the affected train by means of an unillustrated stripping and / or triggering a safety gear and / or even a shutdown, in particular the initiation of an emergency stop, at least of the web run of the relevant strand 21; 22 affected printing machine part. In the web break monitoring described in FIG. 21, there is no risk that an -. B. otherwise by the process or the web material conditional - slow "running away" the phase angle is interpreted as a web break above a certain limit and possibly triggers an emergency stop the machine.

In a second embodiment (FIG. 22) of web break monitoring, two detectors D1; D2 spaced apart on the web path to a same web or sub-web 02directed. Preferably, the two detectors D1; D2 arranged in such a way in the railway that for a web break particularly vulnerable aggregates on the web path between these detectors D1; D2 are located. This may be, for example, if available, a dryer and / or a cooling device and / or a turning plant. Preferably, a first detector D1 after the last the web 02 printing, printing unit and z. B. in front of a dryer or in front of a turning plant and the second detector D2 behind z. As a dryer or behind a turning plant. The detectors D1; Take D2 - z. In a stripe corresponding to the field of view - optical signals (eg light-dark) corresponding to the print images passing in machine speed. The detector D1 "sees" a periodically occurring pattern M _a1 (or certain features of the pattern) and the detector D2 passes a periodically occurring pattern M _a2 (or certain features of the pattern) .The currently obtained patterns M _a1 and M _a2 ( or characteristics) are compared with respect to their pattern (or their features) or at least with respect to their phase relationship with each other In trouble-free operation, the two matched patterns M _a1 and M _a2 (or features) match and / or take a fixed one In order for the patterns M _a1 and M _a2 to coincide with each other in trouble-free operation, the pattern M _a1 or feature of the one recorded print image may be delayed for a time correlated with the machine speed, eg buffered, and subsequently clocked corresponding to the machine cycle clocked output and compared with the pattern M _{a2 of} the other pattern M _a2 or with its phase angle The clocking can in this case again from an encoder E on a synchronously with the web 02 running component of the printing press or from a Leitachsbewegung an electronic or virtual master axis. If the patterns M _a1 to be compared are _correct ; M _a2 match or there is the correct phase position, so there is no disturbance. The two patterns M _a1 , which are considered to each other, _diverge ; M _a2 but over a fixed, but advantageously variably adjustable threshold in their pattern M _a ; M _a . _n and / or in their phase position of the required phase angle from each other, or exceeds a gradient for the change of a predetermined limit for the gradient (see above), then z. B. a warning message and / or it affects the output of the evaluation 34 on a machine control and causes a knocking off the affected train by means of an unillustrated stripping and / or triggering a safety gear and / or even a shutdown, in particular the initiation of an emergency stop, at least of the web run of the relevant strand 21; 22 affected printing machine part.

In a third embodiment of the web break monitoring takes a detector D1 again -. For example, in a strip corresponding to the field of view, optical signals (for example light-dark) correspond to the printed images passing in machine speed. In trouble-free operation "sees" the detector D1 periodic patterns M _a (or particular features of the pattern) pass, as for example in Fig. 21 by way of example with a gradient of a pattern M _a is shown. Each current obtained pattern M _a is here compared with a stored reference patterns M _ar The reference pattern M _ar or characteristic is clocked in accordance with the currently obtained pattern M _a and compared with the phase angle of the machine speed. The timing may also from an encoder e to a with If the patterns to be compared M _a ; M _r and / or their phase positions match, then there is no disturbance and the two patterns M considered to one another become different _a ; M _r but over a fixed, but advantageously variably adjustable limit in their pattern M _a ; M _r and / or their phase position from each other, or exceeds a gradient for the change a predetermined limit for the gradient (see above), then z. B. a warning message and / or it affects the output of the evaluation 34 on a machine control and causes a knocking off the affected train by means of an unillustrated stripping and / or triggering a safety gear and / or even a shutdown, in particular the initiation of an emergency stop, at least of the web run of the relevant strand 21; 22 affected printing machine part.

The detector D1; D2 is in all embodiments of Figs. 3 to 23, in particular in the embodiments of Figs. 21 to 23, in terms of cost advantageous as a simple analog sensor, in particular in the form of a photodiode ausgebild z. B. provides an integral gray value for their measuring surface. The analog measured value signals are digitized for further processing, for example.

As already mentioned above, a detector, in particular a self-detector D1; D2 also cooperate with a further evaluation device 27 in the above-mentioned manner, and a control circuit for the longitudinal register, not shown, acting on a registration roller of the registration device 11 or a driven roller for the (partial) web 02 or dien (partial) strand 02 form.

LIST OF REFERENCE NUMBERS

01 printing unit

02 train; Partial railway, railway line, strand; partial strand

03 form cylinder

04 transfer cylinder

05 -

06 roll changer

07 superstructure

08 longitudinal cutting device

09 turning devices

10 -

1 1 register device (s)

12 funnel construction

13 cross cutter

14 folder

15 hut

16 former

17 former

18 former

19 longitudinal cutting device (funnel center section)

20 roller, guide roller

21 strand

21 .1 sub-string

21 .2 sub-string

21 .3 sub-string

22 strand

22.1 sub-string

22.2 sub-string 22.3 sub-string

23 strand

24 roller, pair of rollers

25 evaluation unit

26 total strand

27 evaluation unit

28 roller, transfer roller

29 roller, transfer roller

30 -

31 stapler

32 strand

33 roller, roller pair

34 evaluation device

35 -

36 output interface

37 knife cylinders

38 transfer cylinders

39 jaw cylinder

40 -

41 dryers

42 cooling device

43 data memory, ring buffer

Di detector, with i = 0, 1, 2, 3, 1 ', 2', 3a, 3b, 4a, 4b, 5, 1 1, 22, 33, 55 Rj control loop, with j = 0, 1, 2 ,, 3, 1 ', 2', 3a, 3b, 4a, 4b, 5, 1 1, 22, 33, 55 Sk actuator, with k = 0, 1, 2, 3a, 3b, 4a, 4b, 5 RAm Control loop, with m = 0, 1, 2, 3, 5

Δ deviation Δa difference Δ1; Δ2 deviation

Claims

claims

Device for monitoring and / or regulating a strand run in a funnel structure of a web-fed rotary printing press with at least one former (16; 17; 18) and one strand (21; 22; 23) coming from the former (16; 17; 18) and / or Partial strand (21.1; 21.2; 21.3; 22.1; 22.2; 22.3) which can be fed downstream of the former (16; 17; 18) to a cross cutter (13), characterized in that on the strand path between the former (16; 17; 18) and cross cutter (13) two on the two sides of the strand (21, 22, 23) or sub-strand (21.1, 21.2, 21.3, 22.1, 22.2, 22.3) directed detectors

(D0 ... D55) are provided, in that an evaluation device (25; 27) is provided, by which the phase positions of recurring signals of the two detectors (D0 ... D55) can be evaluated relative to respective desired phase positions and / or relative to one another in that in the strand path downstream of the former (16; 17; 18) of the respective strand (21; 22; 23) or partial strand (21.1; 21.2; 21 .3; 22.1; 22.2; 22.3) at least one actuator influencing the strand flow (16; S0 ... S5; A1; A2) is provided which is in logically operative connection with the evaluation device (25; 27) and can be acted upon by a positioning command as a result of a result obtained in the evaluation device (25; 27).

2. Apparatus according to claim 1, characterized in that as an actuator (S0 ... S5) an actuator in the strand path of the respective strand (21; 22; 23) or sub-strand (21 .1; 21 .2; 21.3; 22.1, 22.3) partially wrapped, and transversely to its axis of rotation movable roller (20; 24) provided, and with a change in the strand path length causing actuation command can be acted upon.

3. Apparatus according to claim 1 or 2, characterized in that the actuator (S0 ... S5) together with the evaluation device (27) and two detectors

(DO ... D55) a control loop (R1 ... R55) for longitudinal register control of the relevant Stranges (21; 22) form.

4. Apparatus according to claim 1, characterized in that as a control element (A1, A2) a rotary drive in the strand path one of the respective strand (21, 22;

23) or sub-string (21 .1; 21.2; 21.3; 22.1; 22.2; 22.3) partially wrapped roller (20; 24) is provided, and with a speed change causing actuation command can be acted upon.

5. Device according to claim 1 or 4, characterized in that the actuator (AO; A1; A2) designed as a drive acting on a roller (20; 24) together with the evaluation device (25) and two detectors (D0 ... D55 ) form a control loop (RA1 ... R5) for the correction of strand run errors of the respective strand (21; 22).

6. Apparatus according to claim 5, characterized in that at least one of the two detectors (DO..D55) of the control loop (RA1 ... R5) downstream of the regulated. With respect to their drive roller (20; 24), in particular with the Roller (20;

24) directed together acting strand side, is arranged.

7. Apparatus according to claim 1 and claims 3 and 5, characterized in that on the strand path of at least one strand (21; 22) between the former (16; 17; 18) and cross cutter (13) both a control circuit (R1 ... R55) is provided for longitudinal register control as well as a control loop (RA1 ... R5) for the correction of strand run errors.

8. The device according to claim 7, characterized in that the two control circuits (R1 ... R55; RA1 ... R5) to the signals of at least one common detector (DO ... D55) fall back.

9. Apparatus according to claim 1, characterized by a plurality of arranged in one or more hopper levels and on a common folding unit (14) producing the former (16; 17; 18), wherein downstream of the former

(16; 17; 18) at least one of the number of formers (16; 17; 18) corresponding number of mutually detecting the phase angle pairs of detectors (DO ... D55) at one of the number of Former (16; 17; 18) corresponding number of strands or partial strands are provided.

10. The device according to claim 8, characterized in that on strand paths of at least the number of formers corresponding number of strands (21; 22; 23) or sub-strands (21.1; 21 .2; 21 .3; 22.1; 22.2; 22.3) a control loop

(R1 ... R55) for longitudinal register control according to claim 3 and / or a control loop (RA1 ... R5) are provided for the correction of strand run errors according to claim 5.

1 1. Device according to one of claims 1 to 10, characterized in that at least one strand path a control circuit with an evaluation device (34) is provided which is adapted to at least one of the two a strand (21; 22) associated detectors (DO. ..D55) to compare periodically recurring features of a pattern with previously recorded and / or stored features of a previously recorded pattern, and which generates a signal when jumping the periodically recurring pattern, which generates a warning message and / or via an output interface of a machine control a knocking off of the affected strand (02, 21, 22, 23) is effected by means of a stripping device and / or the triggering of a safety gear and / or a shutdown of at least the printing machine part concerned by the web run of the relevant strand (21;

12. Device for monitoring and / or regulating a strand run in a Funnel structure of a web-fed rotary printing press with at least one former (16; 17; 18) and one strand (21; 22; 23) coming from the former (16; 17; 18) and / or sub-string (21.1; 21 .2; 21.3; 22.1; 22.2 22.3), which downstream of the former (16; 17; 18) can be fed to a cross cutter (13), and wherein at least one on one of the two sides of the strand (21; 22; 23) or partial strand (21.1; 21.2; 21.3; 22.1; 22.2; 22.3) is provided, characterized in that an evaluation device (34) is provided, which is designed to be detected by the detector (D0 ... D55 ) to compare periodically recurring features of a pattern with previously recorded and / or stored features of a previously recorded pattern, and which generates a signal when abruptly changing the periodically recurring pattern, which fed via an output interface of a machine control rt and shutting down at least that of the web run of the relevant strand (21; 22) affected printing machine part causes.

13. The apparatus according to claim 12, characterized by an additional device according to one or more of claims 1 to 10.

14. Apparatus according to claim 12, characterized by at least one funnel plane having at least two juxtaposed folding funnels (16; 17; 18), wherein downstream of the folding funnels (16; 17; 18) at least one of the number of the folding funnels (16; 17; corresponding number of detectors detecting the features (DO ... D55) are provided.

15. Device according to claim 1 or 12, characterized in that the detector (D0 ... D55) of a strand (21; 22; 23) or partial strand (21 .1; 21,2; 21 .3; 22.1; 22.2; 22.3 ) with respect to the strand path between the location of a downstream merge with another strand or substrand and the upstream last upstream roller (20; 28; 29; S1 ... S5) is arranged.

16. Apparatus according to claim 1 or 12, characterized in that in the funnel structure (12) a funnel-shaped longitudinally cut sub-strand (21 .1; 21.2; 21.3; 22.1; 22.2; 22.3) with one another from another former (16; 17; 18) incoming strand or substrand (21; 22; 23; 21.1; 21 .2; 21 .3; 22.1; 22.2; 22.3) is summarized.

17. The apparatus of claim 1 or 12, characterized in that the detector (D0 ... D55) is designed as an optical detection means, which is directed to the respective strand surface and detects the light reflected there.

18. The device according to claim 1, characterized in that an evaluation device (34) is provided, which is designed by the detector (DO ... D55) recorded periodically recurring features of a pattern with previously recorded and / or stored features of a previously recorded pattern.

19. Device according to claim 3 or 5, characterized in that the funnel plane three formers (16; 17; 18) and the funnel structure (12) on at least three strands (21; 22; 23) a control circuit according to claim 3 and / or claim 5 has.

20. Device according to claim 1, characterized in that the hopper structure (12) has two hopper levels with a total of at least four formers (16; 17; 18) and at least four strands (21; 22; 23) a control loop according to claim 3 and / or Claim 5.

21. Method for monitoring and / or regulating a strand run in one Funnel structure of a web-fed rotary printing press with at least one former (16; 17; 18) and one strand (21; 22; 23) coming from the former (16; 17; 18) and / or sub-line (21 .1; 21,2; 21 .3; 22.1 22, 22.3), which is fed downstream of the former (16; 17; 18) to a cross cutter (13), characterized in that on the strand path between the former (16; 17; 18) and cross cutter (13) by means of two on the Both sides of the strand (21; 22; 23) or partial strand (21.1; 21.2; 21 .3; 22.1; 22.2; 22.3) directed detectors (DO ... D55) measured the phase angles of recurring patterns on the strand or substrand and to an evaluation device (25; 27), that the phase positions of the recurring signals of the two detectors (D0 ... D55) are evaluated by the evaluation device (25; 27) with respect to respective desired phase positions and / or relative to one another, and as a result of one in the evaluation device (25; 27) educ Results in the strand path downstream of the former (16; 17; 18) of the respective strand (21; 22; 23) or partial strand (21.1; 21 .2; 21 .3; 22.1; 22.2; 22.3) arranged, the strand flow influencing actuator (S0 ... S5; A1; A2) with a control command is applied.

22. The method according to claim 21, characterized in that as an actuator (S0 ... S5) an actuator in the strand path one of the respective strand (21; 22; 23) or sub-strand (21 .1; 21 .2; 21.3; 22.1), partially wrapped, and transversely to its axis of rotation movable roller (20; 24) is acted upon by a change in the strand path length causing control command.

23. The method according to claim 22, characterized in that the actuator (A1, A2) is a rotary drive in the path of a line (21, 22, 23) or sub-line (21, 21.2, 21.3, 22.1, 22.2 22.3) partially wrapped roller (20; 24) is acted upon by a speed change effecting a control command.

24. The method according to claim 22 and claim 23, characterized in that the signals of at least one common detector (D0 ... D55) both for the evaluation in terms of the placement of the actuator for changing the strand path length as well as for the evaluation in terms of the setting of the rotary drive to change the speed can be used.

25. Method for monitoring and / or regulating a strand run in a funnel structure of a web-fed rotary printing press with at least one former (16, 17, 18) and one strand (21, 22, 23) coming from the former (16, 17, 18) and / or Sub-string (21.1; 21.2; 21.3; 22.1; 22.2; 22.3), wherein downstream of the former (16; 17; 18) by means of a strand (21; 22; 23) or sub-string (21 .1; 21.2; 21.3; 22.1; 22.2; 22.3) directed detector

(D0 ... D55) the phase positions of a periodically recurring pattern are recorded on the strand or sub-string and compared with previously recorded and / or stored features of a previously recorded pattern, and the result of the comparison for detecting a crack of at least one layer of the strand (21; 22; 23) is used by generating a signal which generates a warning message regarding a web break and / or an output interface of a machine control when abruptly changing the periodically recurring pattern and a knocking off of the relevant strand and / or Shutdown initiates at least the printing machine part affected by the web run of the respective strand (02; 21; 22).

26. The method according to claim 25, characterized by an additionally performed method according to one or more of claims 21 to 24.