EP2072253A2 - Procédé de réglage d'une tension de bande et/ou du registre - Google Patents

Procédé de réglage d'une tension de bande et/ou du registre Download PDF

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Publication number
EP2072253A2
EP2072253A2 EP08018291A EP08018291A EP2072253A2 EP 2072253 A2 EP2072253 A2 EP 2072253A2 EP 08018291 A EP08018291 A EP 08018291A EP 08018291 A EP08018291 A EP 08018291A EP 2072253 A2 EP2072253 A2 EP 2072253A2
Authority
EP
European Patent Office
Prior art keywords
web
moisture
processing machine
printing
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.)
Withdrawn
Application number
EP08018291A
Other languages
German (de)
English (en)
Other versions
EP2072253A3 (fr
Inventor
Stephan Schultze
Holger Schnabel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP2072253A2 publication Critical patent/EP2072253A2/fr
Publication of EP2072253A3 publication Critical patent/EP2072253A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F13/00—Common details of rotary presses or machines
    • B41F13/02—Conveying or guiding webs through presses or machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F13/00—Common details of rotary presses or machines
    • B41F13/02—Conveying or guiding webs through presses or machines
    • B41F13/025—Registering devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F23/00—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing
    • B41F23/04—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing by heat drying, by cooling, by applying powders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F23/00—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing
    • B41F23/04—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing by heat drying, by cooling, by applying powders
    • B41F23/0403—Drying webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F23/00—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing
    • B41F23/04—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing by heat drying, by cooling, by applying powders
    • B41F23/0476—Cooling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F23/00—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing
    • B41F23/04—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing by heat drying, by cooling, by applying powders
    • B41F23/0476—Cooling
    • B41F23/0479—Cooling using chill rolls
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H43/00—Use of control, checking, or safety devices, e.g. automatic devices comprising an element for sensing a variable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/50—Auxiliary process performed during handling process
    • B65H2301/51—Modifying a characteristic of handled material
    • B65H2301/514—Modifying physical properties
    • B65H2301/5142—Moistening
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/50—Auxiliary process performed during handling process
    • B65H2301/51—Modifying a characteristic of handled material
    • B65H2301/517—Drying material
    • 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
    • B65H2511/40—Identification
    • B65H2511/414—Identification of mode of operation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2515/00—Physical entities not provided for in groups B65H2511/00 or B65H2513/00
    • B65H2515/30—Forces; Stresses
    • B65H2515/31—Tensile forces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2515/00—Physical entities not provided for in groups B65H2511/00 or B65H2513/00
    • B65H2515/40—Temperature; Thermal conductivity
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2515/00—Physical entities not provided for in groups B65H2511/00 or B65H2513/00
    • B65H2515/805—Humidity
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/17—Nature of material
    • B65H2701/176—Cardboard

Definitions

  • the present invention relates to a method for controlling a web tension and / or a register, a corresponding computer program and a corresponding computer program product.
  • the invention is not limited thereto, but rather directed to all types of machine tools in which a web is processed.
  • the invention can be used in particular in printing presses such as newspaper printing presses, commercial printing presses, gravure printing machines, packaging printing machines or security printing presses, as well as in processing machines such as bag making machines, enveloping machines or packaging machines.
  • the web can be made of paper, cloth, cardboard, plastic, metal, rubber, in foil form, etc.
  • a web along driven axes such as Bahntransportachsen
  • Pull rolls or feed rolls and non-driven axes such as e.g. Deflection, guide, drying or cooling rollers moved.
  • the web is simultaneously processed by means of usually likewise driven machining axes, for example printed, punched, cut, folded, etc.
  • the processing of the web often results in a change of physical properties of the web, which usually results in the change of the time constants of the control ,
  • the web is printed in printing units and dried in subsequent drying plants.
  • the web is usually supplied in the printing units by means of the applied color also water or liquid or moisture in general, whereby a change in the expansion behavior of the web is brought about, ie the elongation behavior is typically "softer".
  • this change is completely or partially reversed by the drying taking place, ie the expansion behavior typically becomes “harder”.
  • the drying plants again cooling plants, for example. Cooling rollers to cool the heated web.
  • a web tension and / or a register of a processing machine for processing a web is regulated.
  • the web is processed in at least one processing device.
  • the modulus of elasticity of the material of the web is changed by a moisture entry into the material of the web and / or a moisture discharge from the material of the web, in particular in the at least one processing device.
  • a variable associated with the introduction of moisture into the material of the web and / or the moisture discharge from the material of the web is taken into account in the regulation.
  • the invention is particularly suitable for a shaftless printing press.
  • a register control variable is, for example, a color register or longitudinal register.
  • the assigned size In particular, it may be determined or previously known from machine data. This may in particular be a heating power or temperature of a drying plant, a cooling capacity or temperature of a cooling plant, a drying time or throughput time of the web through the drying or cooling plant or generally by areas of the processing machine.
  • a drying or cooling of the web also takes place outside of drying or cooling plants and preferably this moisture is also taken into account.
  • the controller structure, the controller settings and pilot control values can be adapted or adapted to the influencing variables moisture input and moisture discharge. It is now advantageously possible to change the time constants that influence the process behavior, for example, a web tension or a longitudinal register, and to optimally set the corresponding controllers. It is not necessary to determine the modulus of elasticity consuming, since this or its changes from the associated size can be derived.
  • the assigned variable is taken into account as a control parameter, as an input variable and / or as a precontrol value of the actual and / or setpoint values.
  • a material characteristic of the material of the web is taken into account.
  • a change in the modulus of elasticity or expansion of a material web can be derived from an applied moisture input, for example by means of a printing process, and / or from an acting moisture discharge, for example by means of a drying process.
  • an amount of ink and / or water to be applied generally a quantity of liquid, can be used by a printing unit.
  • the size assigned to the moisture discharge from the material of the material web can be a heating power, radiation power (eg UV dryer) and / or temperature of a drying plant, a drying time, for example in a drying plant or in air, a cooling capacity and / or temperature of a cooling plant, For example, a cooling roll temperature, a cooling time, for example, be used when wrapping a chill roll or in air.
  • the drying or cooling time can be determined in a simple manner from the transport speed and the distance to be traveled. It is thus advantageously not necessary to determine absolute values of the modulus of elasticity.
  • the printing substrate Film usually stronger in its behavior by drying or temperature and less affected by moisture than paper.
  • At least one precontrol value is ascertained on the basis of a measuring run, in particular by means of control engineering consideration of the web tension and / or of the register.
  • at least one precontrol value in particular constantly, is adapted to the process.
  • the processing machine has at least one dampening unit and / or drying plant, wherein the adaptation is carried out on the basis of set and / or actual sizes of the at least one dampening unit and / or drying plant.
  • nominal and / or actual quantities are in particular liquid amount (amount of ink, amount of water, etc.), dry power, dry setpoint temperature and / or dry-actual temperature, cooling unit power, cooling roller target temperature and / or cooling roller actual temperature suitable , It makes sense to additionally calculate a model of the physical conditions of the material parameters as a function of the adaptation variables.
  • the processing machine is designed as a printing machine and at least one pre-control value and / or at least one initialization value for the adaptation are obtained from data of the prepress.
  • both moisture input in the dampening unit and moisture discharge are controlled by means of a dryer temperature / performance by the machine control.
  • the control variables such as desired dryer temperature, Actual temperature of the dryer, dryer capacity, set temperature of the cooling roller, etc.
  • Pre-control values can be determined.
  • the expected drying or moistening can be obtained from pre-press data. It is possible to obtain from this at least one initialization value for the dynamic adaptation and / or at least one static adaptive value that is not subject to adaptation.
  • the control may include a fuzzy logic based control strategy. This is commonly referred to as fuzzy logic.
  • a processing machine has in particular all means for carrying out a method according to the invention.
  • the invention additionally relates to a computer program with program code means in order to carry out all the control steps of a method according to the invention when the computer program is executed on a computer or a corresponding arithmetic unit, in particular in a processing machine.
  • the inventively provided computer program product with program code means which are stored on a computer-readable data carrier is designed to perform all the control steps of a method when the computer program is executed on a computer or a corresponding computing unit, in particular in a processing machine.
  • Suitable data carriers are, in particular, floppy disks, hard disks, flash memories, EEPROMs, CD-ROMs, DVDs and the like. It is also possible to download a program via computer networks (Internet, intranet, etc.).
  • FIG. 1 a preferred embodiment of a designed as a printing machine processing machine is generally designated 100.
  • a printing material for example paper 101
  • the paper 101 is guided and printed by printing units (dampening units) 111, 112, 113, 114 and is output again by an outfeed 115.
  • the input, extraction and printing units 110 to 115 are positionable, in particular cylinder or angle correctable arranged.
  • the printing units 111 to 114 are located in a web-tension-controlled area between the intake unit 110 and the extension unit 115.
  • the printing units 111 to 114 each have a printing cylinder 111 'to 114', against which a respective impression roller 111 '' to 114 '' is made with strong pressure.
  • the impression cylinders 111 'to 114' are individually and independently drivable.
  • the associated drives 111 '' 'to 114' '' are shown schematically.
  • the impression rollers 111 '' to 114 '' are freely rotatable.
  • the pull-in and pull-out units 110 and 115 each have two counter-rotating cylinders which guide the paper 101. Also, the collection and the extension unit 110 and 115 is individually by a drive 110 '''and115''' driven. The collection and withdrawal plant 110, 115 and the printing units 111 to 114 together with the continuous paper 101 form a frictionally connected unit.
  • a processing unit designed as a drying unit or dryer 121 and a cooling unit or cooling roller 131 is arranged in the section between the first printing unit 111 and the second printing unit 112.
  • a dryer 122 and a cooling roller 132 in the section between the third printing unit 113 and the fourth printing unit 114, a dryer 123 and a cooling roller 133 and in the section between the fourth printing unit 114 and the extraction unit 115, a dryer 124 and a cooling roller 134 are arranged.
  • both the moisture discharge in the driers 121-124 and the chill rollers 131-134 and the moisture input in the printing units 111-114 are determinable and usable as a size affecting the modulus of elasticity of the material for the invention , Furthermore, preferably the moisture discharge from the material of the material web 101 "in air" between the printing units 111-114 and the subsequent driers 121-124 and also between the driers 121-124 and the subsequent cooling rollers 131-134 and between the cooling rollers 131-134. 134 and subsequent works 112-115 are taken into account.
  • a computing unit 200 is provided for controlling the printing machine including the regulation of the web tension and the web register.
  • the introduction of moisture is possible, for example, from the prepress stage by evaluating the printing area of the printed image and / or by determining the printing unit.
  • a color quantity meter can be used or the position of the ink fountain key can be evaluated.
  • the effect of the moisture input and the moisture discharge on the modulus of elasticity can be determined by one or more measuring runs.
  • FIG. 2 a preferred control structure is shown schematically.
  • a controller 10 is provided, which is equipped with an output 11 for outputting the manipulated variable and a plurality of inputs 12 to 16.
  • the controller 10 is supplied via an input 12, a desired value or the reference variable.
  • the controller 10 is supplied via an input 13 of the instantaneous actual value or the controlled variable.
  • the controller 10 via the other inputs 14 to 16 for receiving the moisture input and / or the moisture discharge associated sizes.
  • the controller 10 is supplied via an input 14 a the moisture input into the material of the web associated size. This may in particular be a quantity of ink applied in a printing unit.
  • the controller 10 is further supplied via an input 15 to the moisture discharge from the material of the web associated size.
  • This may in particular be data of the existing dryers, such as e.g. a dryer capacity or dryer temperature.
  • At least one material characteristic value is fed to the controller 10 at an input 16.
  • the regulator 10 is thus advantageously capable of automatically communicating the data obtained with regard to the assigned variables with the material reaction.
  • a control structure would be conceivable in which no input 16 is provided for at least one material characteristic value, but the quantities are standardized with a material characteristic value even before the transfer to the controller.
  • the controller 10 has further inputs (not shown) for receiving further assigned quantities, as far as they are not known within the controller.
  • further inputs for further determination of the moisture discharge, the transport or machine speed, the distances to be covered between the processing devices and / or an outside temperature, etc., can be made available to the controller.
  • the controller 10 is configured to derive the change of the modulus of elasticity based on the obtained data concerning the assigned quantities. For example, it is possible to derive a change in the elongation behavior in the web based on the amount of paint applied. Such a derivation can be made, in particular, on the basis of data that is present in a previous one Test drive were won. It is also possible to derive the change in the expansion behavior of the material of the web during drying from the controller input data relating to the drying at the entrance 15. The derivation can take place, for example, taking into account the data taken during a test drive.
  • the controller 10 which may be formed as web tension and / or register controller, advantageously in a position to take into account the change in the material of the web during the printing, drying and / or cooling process, so that an optimal adjustment of the controller can be achieved.
  • the necessary in the prior art soft parameterization against changes in the web tension behavior can thus be avoided, which waste is advantageously reduced.
  • controller and the inputs and outputs are logical elements whose physical design and number is at the discretion of the expert.
  • a complete software-based version of the controller is advantageous.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
  • Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
  • Ink Jet (AREA)
EP08018291A 2007-12-22 2008-10-20 Procédé de réglage d'une tension de bande et/ou du registre Withdrawn EP2072253A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102007062454A DE102007062454A1 (de) 2007-12-22 2007-12-22 Verfahren zur Regelung einer Bahnspannung und/oder eines Registers

Publications (2)

Publication Number Publication Date
EP2072253A2 true EP2072253A2 (fr) 2009-06-24
EP2072253A3 EP2072253A3 (fr) 2012-07-04

Family

ID=40546184

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08018291A Withdrawn EP2072253A3 (fr) 2007-12-22 2008-10-20 Procédé de réglage d'une tension de bande et/ou du registre

Country Status (6)

Country Link
US (1) US8561539B2 (fr)
EP (1) EP2072253A3 (fr)
JP (1) JP2009149091A (fr)
CN (1) CN101480872B (fr)
DE (1) DE102007062454A1 (fr)
TW (1) TW200944380A (fr)

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DE102009048951A1 (de) * 2009-10-10 2011-04-14 Robert Bosch Gmbh Verfahren zur Modellierung eines Seitenregister-Regelkreises für eine Bearbeitungsmaschine
DE102011101842A1 (de) * 2011-05-17 2012-11-22 Robert Bosch Gmbh Verfahren zum Regeln der Bahnspannung in einer Bahnbearbeitungsmaschine
US9152211B2 (en) * 2012-10-30 2015-10-06 Google Technology Holdings LLC Electronic device with enhanced notifications
CN104210229A (zh) * 2013-06-05 2014-12-17 尚宏机械工业有限公司 吹膜印刷的对版自动控制方法及其装置
DE102018211079A1 (de) * 2018-07-05 2020-01-09 Heidelberger Druckmaschinen Ag Bogendruckmaschine mit einer Befeuchtungseinrichtung
WO2020145968A1 (fr) * 2019-01-09 2020-07-16 Hewlett-Packard Development Company, L.P. Détermination d'un paramètre pour le durcissement d'images
DE102021120371A1 (de) * 2021-08-05 2023-02-09 Multivac Sepp Haggenmüller Se & Co. Kg Verpackungsmaschine mit folientransporteinrichtung sowie verfahren
CN114889321A (zh) * 2022-06-13 2022-08-12 东莞市恒盛胶袋有限公司 一种温度感应包装材料的生产装置及其生产的包装材料

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Also Published As

Publication number Publication date
CN101480872B (zh) 2013-05-08
JP2009149091A (ja) 2009-07-09
DE102007062454A1 (de) 2009-07-02
EP2072253A3 (fr) 2012-07-04
TW200944380A (en) 2009-11-01
US20090162126A1 (en) 2009-06-25
US8561539B2 (en) 2013-10-22
CN101480872A (zh) 2009-07-15

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