EP2028144A2 - Dispositif de surveillance et/ou de réglage d'une bande en mouvement dans une imprimante rotative et procédé de surveillance d'une bande en mouvement - Google Patents

Dispositif de surveillance et/ou de réglage d'une bande en mouvement dans une imprimante rotative et procédé de surveillance d'une bande en mouvement Download PDF

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Publication number
EP2028144A2
EP2028144A2 EP08162658A EP08162658A EP2028144A2 EP 2028144 A2 EP2028144 A2 EP 2028144A2 EP 08162658 A EP08162658 A EP 08162658A EP 08162658 A EP08162658 A EP 08162658A EP 2028144 A2 EP2028144 A2 EP 2028144A2
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EP
European Patent Office
Prior art keywords
strand
web
detector
pattern
control
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP08162658A
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German (de)
English (en)
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EP2028144A3 (fr
EP2028144B1 (fr
Inventor
Andreas Birkenfeld
Burkard Herbert
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Koenig and Bauer AG
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Koenig and Bauer AG
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Publication date
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Application filed by Koenig and Bauer AG filed Critical Koenig and Bauer AG
Publication of EP2028144A2 publication Critical patent/EP2028144A2/fr
Publication of EP2028144A3 publication Critical patent/EP2028144A3/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H26/00—Warning or safety devices, e.g. automatic fault detectors, stop-motions, for web-advancing mechanisms
    • B65H26/02—Warning or safety devices, e.g. automatic fault detectors, stop-motions, for web-advancing mechanisms responsive to presence of irregularities in running webs
    • B65H26/025—Warning or safety devices, e.g. automatic fault detectors, stop-motions, for web-advancing mechanisms responsive to presence of irregularities in running webs responsive to web breakage
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F13/00—Common details of rotary presses or machines
    • B41F13/54—Auxiliary folding, cutting, collecting or depositing of sheets or webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F33/00—Indicating, counting, warning, control or safety devices
    • B41F33/0036—Devices for scanning or checking the printed matter for quality control
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H23/00—Registering, tensioning, smoothing or guiding webs
    • B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
    • B65H23/18—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web
    • B65H23/188—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web in connection with running-web
    • B65H23/1882—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web in connection with running-web and controlling longitudinal register of web
    • B65H23/1886—Synchronising two or more webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2233/00—Arrangements for the operation of printing presses
    • B41P2233/20—Safety devices preventing damage
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/50—Occurence
    • B65H2511/51—Presence
    • B65H2511/512—Marks, e.g. invisible to the human eye; Patterns
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2553/00—Sensing or detecting means
    • B65H2553/40—Sensing or detecting means using optical, e.g. photographic, elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2801/00—Application field
    • B65H2801/03—Image reproduction devices
    • B65H2801/21—Industrial-size printers, e.g. rotary printing press

Definitions

  • the invention relates to a device for strand monitoring and / or regulation in a web-fed rotary printing press and to a method for monitoring the strand run according to the preamble of claims 1 and 12, respectively.
  • the EP 1 619 026 A2 discloses a method with a device for triggering an image acquisition 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.
  • the DE 42 34 308 C2 discloses a method and apparatus for adjusting a cut register, wherein a phase position directly behind a printing unit and a phase position directly in front of a cross cutter are measured by means of detectors and compared with each other.
  • EP 1 300 243 B1 a method and a device for determining the position of a printed paper web is known, wherein from data of a prepress stage reference values for the position determination are generated and compared with measured values.
  • the EP 1 619 026 B1 discloses a method for recognizing a web break wherein the position of a currently captured image is triggered against 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 a device for strand run monitoring and / or control in a web-fed rotary printing press and a method for monitoring the strand run.
  • 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. Hutts, 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.
  • Fig. 1 and 2 show an exemplary top view of embodiments of a trained as a web-fed rotary printing press, especially a newspaper printing machine.
  • 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.
  • 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.
  • 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 a different flight, possibly aligned register means 11, the sub-webs relative to each other in the longitudinal direction aligned, 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.
  • Fig. 1 and 2 schematically two advantageous embodiments for the preparation of the above components are set forth:
  • the hopper assembly 12 is arranged in the machine alignment and in principle after leaving the printing units 01 by "straight running" of the webs 02 or partial webs reachable.
  • the turning device 09 or the turning devices 09 is preceded by at least one longitudinal cutting device 08.
  • the longitudinal cutting device 08 or, in addition, an optional optional longitudinal cutting device 08 can be arranged directly in front of the funnel inlet.
  • Fig. 2 is the hopper assembly 12 with respect.
  • the turning device 09 or the turning devices 09 is preceded by at least one longitudinal cutting device 08.
  • 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 can 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 "on a same level” here means that the funnels of this funnel plane are located in a same machine plane and / or at least cut by a same horizontal plane.
  • longitudinal cutting devices 19 can be provided directly upstream of the formers or also directly after the formers, which longitudinally cut the part webs in the alignment of the seaming back with a former center section on so-called secondary cutting lines. The superimposed by the corresponding folder other layers are then not folded on both sides, but are eintobreit loose on each other.
  • the blades of the main cutting lines from the longitudinal cutting device 08 and the auxiliary cutting lines from the longitudinal cutting device 19 can also be structurally taken together as a common longitudinal cutting device 08, 19 arranged directly in front of the funnel inlet.
  • funnel structures 12 or a strand run control or monitoring depending on the expansion stage, the o. G. Problems (longitudinal register and / or transverse register and / or Huttenönön and / or strand breakage) each individually, in groups or all solved together.
  • the means for cutting or longitudinal register control, the means for monitoring and eliminating Strangglaufcons (Hutten 15 etc.) and facilities for web break monitoring each individually for themselves, or in advantageous developments simultaneously, in particular at least partially using the same Detectors, find application.
  • 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 R0; R1; R2; R3; R1 '; R2 ';3a; R 3b; 4a; R 4b; (R5;) R11; 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 R0; R1; R2; R3; R1 '; R2 ';3a; R 3b; 4a; R 4b; (R5;) R11; R22; R33; R55 (in short: R0 ...
  • 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 loops R0... R55 are logically independent of register devices 11 possibly provided upstream of the funnel structure 12.
  • control circuits R0... R55 which concern the cutting register, are preferably control circuits operating independently of one another in their logic - if appropriate, except for an optional signal connection in the case of an actuator R0 on a strand bundle or the total strand, as in the exemplary embodiment, for example Fig. 3 or 9 ,
  • 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.
  • 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 side of the supplied sub-strand associated side (eg Fig. 11, 12th ).
  • strands or partial strands 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.
  • Fig. 3, 4 . 6, 7 and 9 to 13 show embodiments with a two formers 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.
  • Fig. 3 are downstream of the former 16; 17, two control loops R0 and R1 are now provided for the cut register control, wherein in this first embodiment one of the individual strands 21; 22 a detector D1 and an actuator S1, and in addition to the total strand 24, a detector D0 and an actuator S0 is assigned.
  • the total strand 24 associated actuator S0 is 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 Thomasregistermay.
  • 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.
  • 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.
  • 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.
  • 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 "inside" in the following. Again, this is to be transferred to other examples.
  • Fig. 4 is instead of the main strand 24 associated control loop R0 now each of one of the former 16; 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.
  • 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.
  • Fig5 is a schematic representation of a target-actual comparison of detector signals with respect to a cut register control, where a) represents a snapshot example of a clocked to the machine speed setpoint waveform (periodically recurring, generated by printing reference pattern M r ). The phase angle of this setpoint course relative to, for example, is maintained in a memory after a status determined by the printer as "good". The actual phase position is then compared in an evaluation continuously or clocked with the phase of the setpoint curve. The actual course shown in b) shows, for example, an actual value course deviating from the desired state by ⁇ , ie a current pattern M a . A correction by the actuator S1 to be controlled; S2 ... is now to be carried out in such a way that the two signal curves (are again brought into the same phase to each other or are.
  • Fig. 6 shows an embodiment wherein the two strands 21; 22 according to Fig. 4 in each case a control loop R1, R2, and in addition the total strand is assigned its own control loop R0.
  • this embodiment if faulty position of the total string 24 this can be corrected by the control loop R0; There are unnecessary and / or unnecessarily large travel paths in the strands or the associated control loops R1; R2 avoided.
  • control circuits R1; R2 (R3, etc.) for the longitudinal or cut register are these or part of them, as in Fig. 7 exemplified for control loop R1 and R2 (labeled R11 and R22), with two detectors D1; D11; D2; D22, ie in each case with a detector D1; D11; 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.
  • 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.
  • strand run monitoring and control takes place - alone or in conjunction with the cut-off register control and / or a layer breakage monitoring - with a monitoring device on both sides of a same strand monitoring a monitoring of the strand 21; 22 on Hutten- or blistering and a Gegen accordingly be treated. Both sides are checked for agreement with the pattern specified for the correct position and possibly existing deviations ⁇ 1; ⁇ 2 determined from the respective desired position ( Fig. 8 If the two sides deviate to a different extent from the specification or deviate only one side, ie with a shifted relative phase position, a difference ⁇ a results in the deviation.
  • a reaction is triggered.
  • 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 can be concluded that there is a bubble or hatch 15 in the upstream strand path.
  • Such huts are preferably formed directly upstream of a partly entwined by the strand roller 20; 24, wherein the hut 15 i.d.R. in front of the roller 20; 24 on this roller 20; 24 facing side of the strand, d. H. at the relative to the looped roller 20; 24 inner layer, forming.
  • 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 roll circumference.
  • 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 schematically in Fig. 5 with respect to the roller 20 with the detector D2 and the dashed line indicated detector upstream of the roller 20 set forth.
  • detector D0 downstream of the roller 24 in combination with signals from the detector D22 formed before the roller 24 Hutte 15 (bubble) detected, and reduced or eliminated by the control of the drive of the roller 24.
  • the two detectors D22 and D2 or D0 and D22 in pairs part of a control loop RA1; RA2; RA0 and signal technically connected to an evaluation and / or control unit 25, through which the signals of the detectors D22 and D2 or D0 and D22 in z. B. og way evaluated become.
  • the evaluation and / or control unit 25 in turn acts on a rotary drive A0; A1; A2 or to a drive control of the rotary drive A0; A1; A2 of the looped roller 20; 24.
  • the evaluation and / or control unit 25 may be formed in one or more parts and includes 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 D0 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.
  • a setting command eg, a value for increasing a target speed to a drive control or a value for setting a transmission
  • an actuator for this loop is the respective drive A0; A1; A2 of the roller 20; 24 to understand.
  • control circuits RA0 to RA5 for monitoring and control of the strand conveying in addition to the cutting register control loops R0 ... R55 are shown.
  • these control loops RA0 to RA5 can be provided for monitoring and control of the strand production alone.
  • the in Fig. 6 only control loop RA0 shown as an example with respect to one strand 21 can also be provided on the other side with an additional corresponding detector for the strand 22.
  • the rollers 24 regulating control loops D0 can also be provided for the remaining examples.
  • both control loops RA0 to RA5 are provided for monitoring and controlling the strand feed and control loops R0 ... R55 are for cutting register control
  • at least some 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 RA0 to RA5 for monitoring and controlling the strand conveying and in a control loop R0 ... R55 for cutting register control and further processed.
  • 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 above rollers 20; 24, preferably as rotationally driven by a drive rollers 28; 29 trained.
  • B. a variable "book design", ie to achieve increased variability in number of layers and / or order and / or assignment without additional turning.
  • one or more of the strand paths may have a merely in Fig.
  • 9 exemplified stapler 31 may be provided, through which one of a former 16; 17 (18) incoming sub-string 21.1; 22.1 together with the other from the former 17; 16 (18) incoming strand 22; 21 or sub-string 22.2; 21.1 can be performed.
  • Fig. 9 to 13 are exemplary embodiments of the possibility of strand splitting and / or strand mixing give.
  • 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.
  • FIGS. 9 and 10 is in each case in addition to the two the strand paths of the strands 21; 22 associated control circuits R1; R2 and R11, respectively; R22 a separate control loop R3 or R33 for the decoupled sub-string 21.1 and in Fig. 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 and R11, respectively; R22 or to the control circuits RA0; RA1; RA3 previously mentioned is to be applied accordingly.
  • the formers 16; 17 at least two transfer devices 28; 29, z. B. rollers 28; 29, provided, via one of the roller 29 umschlingender sub-strand 21.1 divided 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.
  • this decoupled partial strand 21.1 is a control loop R3 or R33 ("one-sided” or “double-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.
  • the actuator S3a; S3b act on the above-mentioned type as a movable register roller formed transfer roller 29.
  • Fig. 11 is a variant for execution according to FIGS. 9 and 10 shown, 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.
  • the detector D1 of a formerly two-sided control circuit R11 can be used.
  • the signal of the internal detector D1 of a double-sided control circuit R11 both the control circuit of the decoupled sub-string 21.1, and the two-sided control circuit R11 of the strand 22 are supplied.
  • Fig. 11 is a variant for execution according to FIGS. 9 and 10 shown, 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.
  • FIG. 12 is the facts out Fig. 11 exemplary of the decoupling of a partial strand 22.1 from the strand 22 of the other former 17; 16 set out.
  • FIGS. 9 and 10 shall be applied mutatis mutandis to the opposite case. This is to the control circuits RA1 and RA2 Fig. 7 apply.
  • 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. accordingly Fig. 7 regulated.
  • the two decoupled partial strands 21.2 and 22.1 are assigned respective control circuits R4a and R4b, each with one actuator S4a and S4b and at least one detector D4a and D4b.
  • the actuators on the transfer devices 29 as in Fig. 9 act the detectors are located on the transfer routes.
  • 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.
  • 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.
  • 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 R0; R1; R2; R11; R22 for the cut register and / or control circuits RA1; RA2 for the "normal operation" without mixing or splitting is individually on the strand guides of the strands 21; 22 and 21 ', 22' of the two funnel planes of a funnel plane from the preceding embodiments apply. In particular, the control circuits RA1; RA2 z. B. off Fig.
  • one or more of the upper strands 21 'and 22' may be deflected overall and between the lower formers 16; 17 (18) to be passed.
  • the strands 21; 22 of the two lower formers 16; 17 are in an advantageous embodiment, not shown, with the appropriate use not shown transfer facilities the training with decoupling of sub strands 21.1; 22.1 according to the examples Fig. 9 to 12 applicable.
  • the relevant control circuit R1 '; R2 ' is assigned a detector Dx' or Dy 'arranged on the path extending between the funnels.
  • 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.
  • Fig. 14 For the cut-off register control only the "one-sided" control loops, the above applies to the two-sided control loops accordingly.
  • the dashed line indicated control loop R0 may optionally be additionally provided, or instead of one of the string-related control loops (see accordingly Fig. 3, 4 . 6 and 7 ).
  • Fig. 15 is that to the embodiments with two juxtaposed formers 16; 17 or 16 '; 17 'exemplified on a funnel group with three juxtaposed formers 16; 17; 18 on the basis of two-sided control loops (R0) R11; R22; R55 and control circuits RA1; RA2; RA5darhog.
  • 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 are, as well as the two rollers 24 in previous examples, preferably not anenander so strung over the strands that they clamp this.
  • a stapler 31 may be provided in the strand path between the merging of two strands 21; 23, a stapler 31 may be provided.
  • 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.
  • 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.
  • the cross cutter can also be formed in other ways, and be formed with or without downstream folding.
  • the control circuits for the cutting register and / or for monitoring the strand run are provided.
  • 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.
  • 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.
  • 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).
  • 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, scanned over a suitable optical spot or a region of small diameter-directed onto the surface of the strand and thus scans a more or less wide strip on the passing strand.
  • 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.
  • 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.
  • 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.
  • the detector D0 ... D55 this is as an image sensor, z. B. as a CCD chip or as a CMOS chip formed.
  • the detector D0... D55 can have as a sensor a line camera or an area camera.
  • 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.
  • 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.
  • the print image section to be considered in the transverse and / or longitudinal direction
  • 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.
  • FIGS. 3 to 16 advantageous, but also considered by itself advantageous embodiment has at least one strand 21; 22, but preferably each of a former 16; 17 (18) incoming strand 21; 22 a detector D1 at least on one side, in particular at least on the "inner side" which is particularly vulnerable to web breakage of a single layer; D2 and an evaluation device 34.
  • the detector D1; D2 advantageously a detector D1 also used for one of the other circuits described; Be D2.
  • the latter is designed to be detected by the detector D1; Compare D2 currently recorded periodically recurring pattern M a (or at least features of this pattern) with a previously recorded M and / or M r stored patterns (or characteristics of these previously recorded pattern) (see also above).
  • the evaluation device 34 has corresponding storage and / or computing means. If the currently recorded pattern (or the observed features of this currently recorded pattern) deviates abruptly over certain tolerances from the previously recorded and / or stored pattern (or the characteristic of this previously recorded pattern), then the outer layer may be cracked the considered strand 21; 22 closed.
  • Fig. 19 is a schematic representation of one of the detector D1; D2; etc. track shown as a light-dark pattern.
  • pattern can also be a special, 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.
  • 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 pre-press data or from an initially recorded and found to be "good” pattern and stored in a memory.
  • the currently recorded model M a or its phase position is, however, clocked with a directly or in each case a few (n) print images previously located and possibly only temporarily stored samples to M (or features of these previously recorded pattern) are compared.
  • the o.g. "erratic" deviation and thus the criterion for a Bruck can be determined by a limit for a permitted deviation, which is preferably variably fixed. If the deviation exceeds this, then a train or ply tear is closed.
  • 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 points of view 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 a (or characteristic) of the currently measured print image with the pattern M a-1 (feature) of the directly before it measured print image compared.
  • 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 directly a control-technical measure. For example, a stop of the machine and / or a shutdown of the endangered guide element - be issued to a relevant control.
  • 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.
  • Fig. 18 is an execution accordingly Fig. 17 set forth, but with the difference that here on both sides of the strand 21; 22 is measured and evaluated.
  • FIGS. 17 to 20 illustrated embodiments for determining cracks of individual layers in conjunction with one or more embodiments of the strand register and / or strand control from the FIGS. 3 to 16 To be applied, it is advantageous to use the same detectors D1..D55 or their signals for the evaluation of the register control and / or line control and for the evaluation of a possible crack per strand.
  • 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 to the detection of a web break, ie a web break monitoring on the webs 02 or longitudinally cut webs 02, so web strands 02 (short: Srtrnature 02 or sub strands 02) apply.
  • a web break monitoring on the webs 02 or longitudinally cut webs 02 so web strands 02 (short: Srtrnature 02 or sub strands 02) apply.
  • the above too Fig. 17 to 20 as well as for the training of the here on the web 02 or partial 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 in the according to Fig. 3 to 16 in the manner described with one, but in particular one-sided control loop R0 ...
  • R5 for the cut register of the web 02 or part web 02 be combined, in which case preferably again a self-detector D1; D2 the signal for web break detection and cut register control is used.
  • the control circuit for the cutting register acts on the drive of a register device 11, in particular a register roller movable in the web running direction.
  • FIG. 21 to 23 Examples of web break monitoring are shown using what has been described above in connection with ply break monitoring.
  • Fig. 22 schematically illustrated printing machine is, for. B. in addition to the in Fig. 1 and 2
  • Funnel structure and folder are indicated here only symbolically.
  • 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 -.
  • optical signals eg light-dark
  • the detector D1 "sees" periodically occurring patterns M a (or certain features of the pattern) pass by, as for example in FIG Fig. 21 is exemplified with a gradient for a pattern M a .
  • the pattern M a (or feature) of the currently measured print image is compared with the pattern M a-1 (feature) of the directly before recorded print image.
  • the pattern or feature of the previously recorded print image is temporarily stored, for example, for a time period correlated with the machine speed and then compared with the currently obtained pattern M a or with its phase position, corresponding to a time offset to the machine speed.
  • the intermediate memory can be designed, for example, as a data memory 43 in the form of a circular memory 43 for the n images or cylinder envelopes to be buffered.
  • 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 on or their phase angles match, so there is no disturbance.
  • the two patterns M a which are considered to each other, diverge; M an but over a fixed, but advantageously variably adjustable threshold in their pattern M a ; M on 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.
  • a second embodiment ( Fig. 22 ) of the web break monitoring are two detectors D1; D2 spaced apart on the web path to a same web or sub-web 02directed.
  • 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.
  • the detector D1 "sees" a periodically occurring pattern M a1 (or certain features of the pattern) and the detector D2 pass a periodically occurring pattern M a2 (or certain features of the pattern).
  • the currently obtained patterns M a1 and M a2 (or features) are compared with respect to their pattern (or their features) or at least with respect to their phase relation to each other. In trouble-free operation, the two patterns M a1 and M a2 (or features) compared with one another coincide and / or assume a fixed phase relationship with one another.
  • the pattern M a1 or feature of the one recorded print image may be delayed for a time correlated with the machine speed, e.g. B. cached, and then 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 position.
  • 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 Leitachsterrorism 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 on 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.
  • a third embodiment of the web break monitoring takes a detector D1 again -.
  • optical signals eg light-dark
  • the detector D1 "sees" periodically occurring patterns M a (or certain features of the pattern) pass by, as for example in FIG Fig. 21 is exemplified with a gradient for a pattern M a .
  • Each currently obtained pattern M a is compared here with a stored reference pattern M ar .
  • the reference pattern M ar or feature is clocked corresponding to the machine speed with the currently obtained pattern M a or compared with the phase angle.
  • the clocking can also be obtained from an encoder E on a synchronous with the web 02 component of the printing press or from a Leitachsterrorism an electronic or virtual master axis. If the patterns to be compared M a vote; M r and their phase angles match, so there is no disturbance.
  • the two patterns M a which are considered to each other, diverge; M r, however, 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 versions of the Fig. 3 to 23 , in particular in the embodiments of Fig. 21 to 23 , in terms of effort advantageous as a simple analog sensor, in particular in the form of a photodiode soldress, the z. B. provides an integral gray value for their measuring surface.
  • the analog measured value signals are digitized for further processing, for example.
  • a detector in particular a self-detector D1; D2 also cooperate with a further evaluation device 27 in the above-mentioned manner and form 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 (sub-) web 02 or dien (sub-) web 02 ,

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Quality & Reliability (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Controlling Sheets Or Webs (AREA)
  • Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
  • Replacement Of Web Rolls (AREA)
EP08162658A 2007-08-21 2008-08-20 Dispositif de surveillance et/ou de réglage d'une bande en mouvement dans une imprimante rotative et procédé de surveillance d'une bande en mouvement Not-in-force EP2028144B1 (fr)

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DE102007039373.5A DE102007039373C5 (de) 2007-08-21 2007-08-21 Verfahren zur Überwachung des Stranglaufes in einem Trichteraufbau einer Rotationsdruckmaschine

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EP2028144A2 true EP2028144A2 (fr) 2009-02-25
EP2028144A3 EP2028144A3 (fr) 2009-11-18
EP2028144B1 EP2028144B1 (fr) 2011-05-25

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EP10157527A Not-in-force EP2210839B1 (fr) 2007-08-21 2008-08-20 Dispositif de surveillance et/ou de réglage d'une bande en mouvement dans une imprimante rotative et procédé de surveillance d'une bande en mouvement
EP08803099A Withdrawn EP2190766A2 (fr) 2007-08-21 2008-08-20 Dispositifs et procédé de contrôle et/ou de régulation d'une marche de faisceau dans un système de cônes d'une presse rotative à imprimer
EP08162658A Not-in-force EP2028144B1 (fr) 2007-08-21 2008-08-20 Dispositif de surveillance et/ou de réglage d'une bande en mouvement dans une imprimante rotative et procédé de surveillance d'une bande en mouvement

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EP08803099A Withdrawn EP2190766A2 (fr) 2007-08-21 2008-08-20 Dispositifs et procédé de contrôle et/ou de régulation d'une marche de faisceau dans un système de cônes d'une presse rotative à imprimer

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AT (1) ATE510790T1 (fr)
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WO2010136278A1 (fr) * 2009-05-28 2010-12-02 Siemens Aktiengesellschaft Système de surveillance et dispositif présentant ledit système de surveillance
CN105500919A (zh) * 2015-12-30 2016-04-20 凌云光技术集团有限责任公司 一种标签缺陷报警方法及装置
EP2108511A3 (fr) * 2008-04-03 2017-12-27 manroland web systems GmbH Réglage d'un registre de coupe

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DE4234308C2 (de) 1992-10-12 1996-08-29 Heidelberger Druckmasch Ag Verfahren zum Einstellen des Schnittregisters an einer einer Rollendruckmaschine nachgeordneten Querschneidvorrichtung
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EP1074501B1 (fr) 1999-08-02 2005-11-09 Maschinenfabrik Wifag Détermination de la position de coupe de bandes dans une machine d'impression rotative
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WO2010136278A1 (fr) * 2009-05-28 2010-12-02 Siemens Aktiengesellschaft Système de surveillance et dispositif présentant ledit système de surveillance
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CN105500919B (zh) * 2015-12-30 2017-11-10 凌云光技术集团有限责任公司 一种标签缺陷报警方法及装置

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Publication number Publication date
ATE510790T1 (de) 2011-06-15
EP2028144A3 (fr) 2009-11-18
EP2210839A2 (fr) 2010-07-28
DE102007039373A1 (de) 2009-02-26
EP2210839B1 (fr) 2012-10-17
WO2009024579A2 (fr) 2009-02-26
DE102007039373B4 (de) 2015-03-26
EP2028144B1 (fr) 2011-05-25
EP2190766A2 (fr) 2010-06-02
DE102007039373C5 (de) 2018-10-25
WO2009024579A3 (fr) 2009-09-03
EP2210839A3 (fr) 2010-12-08

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