EP1826002A2 - Machine à imprimer avec une régulation de la tension d'une bande de matériaux - Google Patents

Machine à imprimer avec une régulation de la tension d'une bande de matériaux Download PDF

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Publication number
EP1826002A2
EP1826002A2 EP06125386A EP06125386A EP1826002A2 EP 1826002 A2 EP1826002 A2 EP 1826002A2 EP 06125386 A EP06125386 A EP 06125386A EP 06125386 A EP06125386 A EP 06125386A EP 1826002 A2 EP1826002 A2 EP 1826002A2
Authority
EP
European Patent Office
Prior art keywords
cooling roller
printing machine
machine according
roller
web
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
EP06125386A
Other languages
German (de)
English (en)
Other versions
EP1826002A3 (fr
EP1826002B1 (fr
Inventor
Stefan Ohlhauser
Thomas Potzkai
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.)
Koenig and Bauer AG
Original Assignee
Koenig and Bauer AG
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 Koenig and Bauer AG filed Critical Koenig and Bauer AG
Publication of EP1826002A2 publication Critical patent/EP1826002A2/fr
Publication of EP1826002A3 publication Critical patent/EP1826002A3/fr
Application granted granted Critical
Publication of EP1826002B1 publication Critical patent/EP1826002B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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
    • B65H23/1888—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 web tension
    • 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
    • B65H23/192—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 motor-controlled
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2213/00—Arrangements for actuating or driving printing presses; Auxiliary devices or processes
    • B41P2213/70—Driving devices associated with particular installations or situations
    • B41P2213/73—Driving devices for multicolour presses
    • B41P2213/734—Driving devices for multicolour presses each printing unit being driven by its own electric motor, i.e. electric shaft
    • 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
    • B65H2301/5144—Cooling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2513/00—Dynamic entities; Timing aspects
    • B65H2513/10—Speed
    • 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
    • B65H2553/20—Sensing or detecting means using electric elements
    • B65H2553/26—Piezoelectric sensors
    • 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 present invention relates to a printing machine having at least one printing unit and a method for controlling a web tension.
  • rollers In a simple web tension control run several driven rollers with a fixed predetermined ratio of their speeds to each other, and to control the web tension, it is sufficient to detect them at a single measuring point and adjust the speeds of the driven rollers based on the measured value.
  • the rollers can be driven by a common motor via a real master shaft in a fixed speed ratio to each other, or the individual driven rollers associated motors can be operated via an electronically implemented virtual master axis in a fixed speed and phase relationship.
  • variable properties of the web make it difficult to maintain a desired course of web tension on the path of the web through the machine for a long time.
  • the DE 198 34 725 A1 proposes, therefore, to use several web tension sensors in order to regulate the web tension in sections in each case in the printing press.
  • the DE 100 14 535 A1 describes a method for controlling web tension forces in a web-fed rotary press with dryer and chill rolls. In this case, driven cooling rollers are provided, which are not used for measuring web forces.
  • the object of the invention is to provide a printing machine with web tension control and a method for controlling a web tension.
  • the governor assembly may include a central control unit for setting a general target speed for the driven rollers and a correction unit for generating the speed setpoint for the driven cooling roller by superimposing the general target speed for the driven cooling roller with a correction term derived from a measured at one of these cooling roller adjacent measuring point web tension is dependent.
  • a display device for qualitatively or quantitatively displaying a deviation between the speed setpoint and the general target speed can be provided, so that an operator can recognize when and if so to what extent web tension fluctuations exist.
  • the measuring point on the basis of the measurement results of the cooling roller is speed-controlled, preferably comprises at least one force sensor which is adapted to detect a bearing force acting on the driven cooling roller bearing force. This saves a separate measuring roller for the measuring point.
  • the web tension in front of and behind the driven roll can be measured by a horizontally sensitive force sensor independent of the weight of the roll.
  • the controller arrangement is expediently arranged to regulate the speed setpoint the lower, the stronger this force is. Conversely, if the force sensor is sensitive to a force oriented in the outgoing direction of the web from the chill roll, the governor assembly can regulate the speed setpoint the higher the stronger the force.
  • the measuring point comprises two force sensors which are sensitive to forces oriented in different directions. Since the roller is driven, the web tension in front of and behind the roller can each assume different values. With the help of the pair of sensors, it is possible to measure the web tension in front of and behind the roll independently of each other.
  • the roller can therefore not only the measuring roller of a single conventional measuring point, but two such Replace measuring rollers.
  • the wrap angle of the web on the roller should be different from 180 ° and preferably about 90 ° or 270 °.
  • the folding apparatus shown in Fig. 1 are in a conventional manner printing units in which a web 01, z. B. a web of material 01, both sides is printed multi-colored, and a dryer for drying the freshly printed web 01 upstream.
  • the entrance of the folder forms an arrangement 02, z. B. a chill roll stand 02, with a plurality of rollers 03; 04; z. B. cooling rollers 03; 04, of which the cooling roller 03 located farthest on the input side is driven by a motor (not shown).
  • a Motor not shown
  • On the way of the material web 01 follows on the cooling roller assembly 02 a Wiederbefeuchtungsstrom 06, in which the material web 01 may be supplied again in excess moisture withdrawn to the web 01 wave-free received and easy to continue processing.
  • the web 01 is up to another roller 07, z. B. a Hauptzugwalze 07, which is also preferably via a measuring roller in front of the main tension roller 07 analogous to the cooling roller stand "track voltage controlled" out, on which a knife 08 is arranged for disassembling the web 01 in a plurality of sub-webs.
  • the partial webs are turned in a turning table 13 and placed one above the other and reach in superimposed form another roller 09, z. B. the Trichterzugwalze 09 at the entrance of a former 11.
  • the longitudinally folded at the exit of the former 11 01 reaches a Querfalzapparat 12, in which the web 01 in the familiar manner cut into individual signatures and then the signatures are folded and designed transversely.
  • the speeds at which the cooling roller 03, the main tension roller 07 and the Trichterzugwalze 09 are driven are essentially predetermined by the speed at which the web 01 passes through the printing units.
  • the moistening of the web 01 during printing, its dehydration in the dryer and possibly the rewetting in the Wiederbefeuchtungsstrom 06 cause expansion or shrinkage operations of the web 01, which, if not counteracted, cause fluctuations in the web tension and cause disturbances of the printing process can. Stress jumps can on the way of the web 01 - apart from friction losses - substantially on driven rollers 03; 07; 09 occur. Therefore, at each section of the web 01 between two driven rollers, in which the properties of the web 01 may change, it is necessary to be able to measure the tension.
  • a measuring roller 16 arranged above the re-wetting plant 06 is used, which is looped around by the web 01 to a little more than 90 °.
  • the Trichterzugwalze 09 follows the Hauptzugwalze 07 preferably angle synchronously.
  • a voltage measuring device is provided for this section.
  • Fig. 2 is a plan view of a piece of a side frame plate 17 of the chill roll stand 02 having an opening 18 through which a rotatable shaft 19 of the chill roll 03 extends.
  • the axis 19 shown in section is hollow, and its inner cavity serves for supplying and discharging cooling water from the roller 03.
  • the axis 19 is held in a rolling bearing 21, the outer ring in the opening 18 by a wedge 22 or other suitable Means is pressed against two piezo elements 23 and 24, respectively.
  • the piezoelectric element 23 is located at the height of the axis of rotation 19 and is sensitive to horizontal forces, while the piezoelectric element 24 located below the axis 19 is sensitive to vertical forces.
  • Fig. 3 illustrates the distribution of the forces exerted by the web 01 on the roller 03 forces.
  • 01a designates a portion of the web of material 01 which approaches the roll 03 coming from the printing units
  • 01b is a web section which tapers from the cooling roll 03 to the following cooling roll 04.
  • the stresses of the web 01 in these two sections 01a; 01b correspond respectively to the sections parallel force vectors Fa or Fb.
  • the force resulting from their superposition is denoted by Fs.
  • the piezo element 23 detects the horizontal component Fh of Fs and the piezo element 24 detects the vertical component Fv.
  • the measurement signals from the piezo elements 23; 24 receives, able to calculate the forces Fa and Fb and thus the web tension in both sections 01 a and 01 b.
  • the prerequisite for this is merely that the sections 01 a, 01 b are not parallel, and the calculation is the more accurate, the closer the intersection angle between the two sections 01 a and 01 b at right angles, ie the closer the wrap angle Web 01 on the roll 03 at 90 ° or 270 °.
  • Fa, Fb, Fh, Fv are drawn with different orientations in FIG. 3, but it is understood that one or both of Fa and Fb can also be parallel to Fh or Fv, which is the calculation of the Web stresses on the measured forces Fh, Fv simplified.
  • Fig. 4 shows schematically the structure of a speed and web tension control for the printing press shown in Fig. 1 with folder.
  • a controller 29 of the cooling roller 03 and a controller 31 of the main roller 07 is given a general target speed. This can for example be input directly to a control station, or it can be derived from the speed at which the material web 01 passes through the printing press upstream of the folder.
  • the speed controllers 29, 31 are each connected to a web tension controller 32 and 33, respectively, based on the piezoelectric elements 23; 24 or forces measured on the measuring roller 16 estimates the web tension and compares it with a predetermined desired value which can be set at the control station via operating elements 34.
  • the Web tension controller 32; 33 each fixed a correction value which is superimposed in the speed controllers 29 and 31 of the specified by the virtual master shaft 28 general target speed to obtain an adjusted target speed for the cooling roller 03 and the main tension roller 07.
  • a speed controller 36 of the Trichterzugwalze 09 is not directly connected to the virtual master shaft 28, but is coupled to the main tension roller 07 to drive the web 01 at any time at the same speed as the latter, preferably angle synchronously.
  • the speed controllers 29; 31; 36 are each associated controls 37 on the control station, on the deviations from the general target speed individually for the different driven rollers 03; 07; 09 are adjustable by hand.
  • the voltage regulator 32 When the voltage regulator 32 detects too low (or too high) web tension in the section 01 a, it controls the speed controller 29 to up (or down) the speed setpoint for the chill roll 03. From this speed adjustment results in a decrease (increase) of the web tension in the section 01 b, which is measured on the measuring roller 16 and in this way causes the voltage regulator 33 to influence the speed setpoint for the main tension roller 07. Simultaneously with a correction of the rotational speed, a correction of the rotational speed of the Trichterzugwalze 09 is made via the controller 36, so that the tension of the web 01 in the non-measured section between the main tension roller 07 and Trichterzugwalze 09 does not vary.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
  • Rotary Presses (AREA)
EP06125386A 2006-02-25 2006-12-05 Machine à imprimer avec une régulation de la tension d'une bande de matériaux Not-in-force EP1826002B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102006008835A DE102006008835B4 (de) 2006-02-25 2006-02-25 Druckmaschine mit Bahnspannungsregelung

Publications (3)

Publication Number Publication Date
EP1826002A2 true EP1826002A2 (fr) 2007-08-29
EP1826002A3 EP1826002A3 (fr) 2009-02-25
EP1826002B1 EP1826002B1 (fr) 2010-03-10

Family

ID=37667423

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06125386A Not-in-force EP1826002B1 (fr) 2006-02-25 2006-12-05 Machine à imprimer avec une régulation de la tension d'une bande de matériaux

Country Status (3)

Country Link
EP (1) EP1826002B1 (fr)
AT (1) ATE460278T1 (fr)
DE (2) DE102006008835B4 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010054910A2 (fr) 2008-11-14 2010-05-20 Koenig & Bauer Aktiengesellschaft Machine d'impression et procédé pour manipuler une bande guidée par la machine d'impression
WO2013087249A1 (fr) * 2011-12-16 2013-06-20 Koenig & Bauer Aktiengesellschaft Presse rotative
CN110064573A (zh) * 2019-04-15 2019-07-30 泉州宾拼贸易有限公司 一种半自动装封套机
CN112110261A (zh) * 2020-10-28 2020-12-22 常州宏大智能装备产业发展研究院有限公司 预缩机织物预缩率检测方法及装置

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008044496B4 (de) * 2008-09-02 2011-07-07 KOENIG & BAUER Aktiengesellschaft, 97080 Verfahren zum geregelten Einziehen einer an ein Einziehmittel gekoppelten Materialbahn

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1097891A1 (fr) * 1999-11-03 2001-05-09 VITS-Maschinenbau GmbH Dispositif de refroidissement d'une bande flexible en déplacement
EP1136258A2 (fr) * 2000-03-23 2001-09-26 MAN Roland Druckmaschinen AG Méthode de fonctionnement d'une machine d'impression rotative avec appareil de pliage
EP1136257A2 (fr) * 2000-03-24 2001-09-26 Heidelberger Druckmaschinen Aktiengesellschaft Dispositif et procédé de commande de la tension d'une bande
EP1201429A2 (fr) * 2000-10-24 2002-05-02 Heidelberger Druckmaschinen Aktiengesellschaft Procédé et dispositif refroidisseur pour une bande de matériau

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19834725A1 (de) * 1998-07-31 2000-02-03 Wifag Maschf Bahnspannungsregeleinrichtung
US6085956A (en) * 1998-08-04 2000-07-11 Quad/Graphics, Inc. Method and apparatus for controlling tension in a web offset printing press

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1097891A1 (fr) * 1999-11-03 2001-05-09 VITS-Maschinenbau GmbH Dispositif de refroidissement d'une bande flexible en déplacement
EP1136258A2 (fr) * 2000-03-23 2001-09-26 MAN Roland Druckmaschinen AG Méthode de fonctionnement d'une machine d'impression rotative avec appareil de pliage
EP1136257A2 (fr) * 2000-03-24 2001-09-26 Heidelberger Druckmaschinen Aktiengesellschaft Dispositif et procédé de commande de la tension d'une bande
EP1201429A2 (fr) * 2000-10-24 2002-05-02 Heidelberger Druckmaschinen Aktiengesellschaft Procédé et dispositif refroidisseur pour une bande de matériau

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010054910A2 (fr) 2008-11-14 2010-05-20 Koenig & Bauer Aktiengesellschaft Machine d'impression et procédé pour manipuler une bande guidée par la machine d'impression
WO2010054910A3 (fr) * 2008-11-14 2010-07-22 Koenig & Bauer Aktiengesellschaft Machine d'impression et procédé pour manipuler une bande guidée par la machine d'impression
US8256345B2 (en) 2008-11-14 2012-09-04 Koenig & Bauer Aktiengesellschaft Printing press, methods for using the printing press, and methods for handling a web guided through a printing press
CN102216081B (zh) * 2008-11-14 2013-11-13 柯尼格及包尔公开股份有限公司 印刷机、应用印刷机的方法以及操作穿过印刷机引导的带的方法
WO2013087249A1 (fr) * 2011-12-16 2013-06-20 Koenig & Bauer Aktiengesellschaft Presse rotative
CN110064573A (zh) * 2019-04-15 2019-07-30 泉州宾拼贸易有限公司 一种半自动装封套机
CN112110261A (zh) * 2020-10-28 2020-12-22 常州宏大智能装备产业发展研究院有限公司 预缩机织物预缩率检测方法及装置

Also Published As

Publication number Publication date
EP1826002A3 (fr) 2009-02-25
ATE460278T1 (de) 2010-03-15
DE102006008835A1 (de) 2007-08-30
DE502006006389D1 (de) 2010-04-22
DE102006008835B4 (de) 2008-08-21
EP1826002B1 (fr) 2010-03-10

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