EP0092743B1 - Procédé et dispositif pour imprimer des bandes - Google Patents

Procédé et dispositif pour imprimer des bandes Download PDF

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Publication number
EP0092743B1
EP0092743B1 EP83103614A EP83103614A EP0092743B1 EP 0092743 B1 EP0092743 B1 EP 0092743B1 EP 83103614 A EP83103614 A EP 83103614A EP 83103614 A EP83103614 A EP 83103614A EP 0092743 B1 EP0092743 B1 EP 0092743B1
Authority
EP
European Patent Office
Prior art keywords
printing
width
carrier
measuring
arrangement
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.)
Expired
Application number
EP83103614A
Other languages
German (de)
English (en)
Other versions
EP0092743A1 (fr
Inventor
Udo Ing. Grad. Tittgemeyer
Thomas Dipl.-Ing. Litterst
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.)
Interprint Rotatinsdruk GmbH and Co KG
Original Assignee
Interprint Rotatinsdruk GmbH and Co KG
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 Interprint Rotatinsdruk GmbH and Co KG filed Critical Interprint Rotatinsdruk GmbH and Co KG
Priority to AT83103614T priority Critical patent/ATE21355T1/de
Publication of EP0092743A1 publication Critical patent/EP0092743A1/fr
Application granted granted Critical
Publication of EP0092743B1 publication Critical patent/EP0092743B1/fr
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M1/00—Inking and printing with a printer's forme
    • B41M1/14—Multicolour printing
    • 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
    • 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

Definitions

  • the invention relates to a method for custom-fit printing of print media with at least two printing forms used, each of which is in register with the next one in chronological order and with respect to which the print media is kept on a predetermined path.
  • This method which is known from US Pat. No. 2,549,605, uses register marks to control the print carrier, which are printed on the print carrier. With regard to these registration marks, the print carrier is aligned when it is conveyed from one printing unit to another. These registration marks must differ significantly from their background so that they can be detected by photo elements that register a difference in brightness between the registration marks and the background. In decor and wallpaper printing there are no possibilities to control the print medium with the help of registration marks.
  • the registration marks are perceived as annoying and therefore their number is limited to a minimum.
  • This limitation has the disadvantage that an exact alignment of the print carrier is only possible in the area of the registration marks, so that large parts of the print carrier cannot be detected using the photo elements.
  • the print carrier In these unrecognized areas, the print carrier is subject to changes in its dimensions due to external influences. These changes are so great that the printing medium enters the subsequent printing form with dimensions that have changed compared to the previous printing form. In these uncontrolled areas, therefore, there are decisive deviations between predetermined areas of the print carrier, which are to be printed on by the subsequent printing form, and the printing form.
  • the method disclosed in the document uses the usual control of the printing plates with respect to the printing medium.
  • the citation also describes the action on the printing medium in order to align it laterally in its width with respect to the printing form. This alignment takes place with the help of the enlargement or reduction of tensions that are introduced into the print carrier.
  • pressure rollers are provided, with the aid of which tensions can be applied to the desired extent on the printing medium. These tensions can be increased or decreased depending on the dimensions of the print carrier desired.
  • the object of the present invention is therefore to improve the method of the type mentioned in the introduction in such a way that a precise entry of the printing medium into the printing nip of the individual printing forms is ensured.
  • This object is achieved in that the dimension of the print carrier is measured continuously over its entire width over the side edges and is kept constant by compensating for stresses occurring in the print carrier due to the printing.
  • This method is also distinguished in an advantageous manner compared to that from US-A 3,432,672.
  • registration marks are used to control a printing medium, so that it can only be controlled precisely in the area of these registration marks.
  • the print carrier is indeed controlled by acting directly on it, for example with the aid of humidifiers or dryers.
  • the moistening or drying can only be used in a targeted manner in the area of the registration marks, so that areas lying directly next to the registration marks can either not be influenced at all or cannot be influenced in the desired manner.
  • Incorrect dosing of the influences influencing the area extension of the print carrier can influence the area extension of the print carrier in a manner that runs counter to a desired printing of the print carrier.
  • the stresses in the print carrier are not reduced, but possibly even increased.
  • a targeted influence on the dimensions of the print carrier is excluded.
  • a compensation of the stresses occurring in the print carrier ensures that the print carrier runs into each of the successive printing units with the same dimensions.
  • a device for printing on print carriers in multi-color printing which prints at least two colors from one printing unit to produce a desired mixed color, and which is provided with a control which laterally controls the printing medium in a printing line of a respective printing unit, is thereby characterized in that at least one scanner continuously measuring the width of the print carrier across the side edges is provided in front of each printing unit printing a certain color, and the scanners of the successive printing groups are connected to a control device which compares their measured values with an actuator which compensates for a voltage present in the print carrier is connected in a regulatory manner.
  • the method according to the invention can expediently be carried out using a device of the type shown in the figures.
  • This device essentially consists of an unwind 1, three printing units 2, 3, 4 and a reel 5.
  • a printing medium 6 extends from the unrolling 1 through the printing units 2, 3, 4 to the reeling 5. It is unrolled from the 1st , which can be a supply roll, unrolled, conveyed through the printing units 2, 3, 4 and rolled up on the reel 5 for further processing.
  • the print carrier 6 has a predetermined width 7, which represents a parameter that is binding for the entire dimensions of the print carrier 6.
  • the width 7 of the print carrier 6 is measured at an inlet 9, at which the print carrier 6 runs into the first of the three printing units 2, 3, 4 arranged one behind the other.
  • Suitable measuring means for measuring the width 7 are provided at this inlet 9.
  • These measuring means can be, for example, photoelectric scanners 10, 11, with the aid of which the width 7 of the print carrier 6 is scanned.
  • Each of the two scanners 10, 11 receives a pulse from a side edge 12, 13 of the print carrier 6 assigned to it.
  • the pulses recorded in each case are fed via a line 14 into a control device 15, which evaluates the pulses in the sense of calculating the width 7.
  • the printing medium 6 is printed with a first basic color.
  • This first basic color can also serve as a first final color for a representation to be colored accordingly.
  • the printing medium 6 must run in under the second printing unit 3 in such a way that the second printing unit 3 with the second color contained therein directly overprints the contours 16 printed in the first basic color by the first printing unit 2.
  • care is taken to ensure that the dimensions of the printing medium 6 entering the printing unit 3 are the same that were already found at the inlet 9. If the dimensions of the print carrier 6 are identical, it can also be assumed that the contours 16 have exactly maintained their position with respect to the print carrier 6. With a corresponding alignment of the printing unit 3 with respect to the printing medium 6, the register of the printing unit 3 directly hits the contours 16 printed by the printing unit 2.
  • the width 7 of the printing medium 6 will be enjoyed by means of two scanners 18, 19 at an inlet 17 of the printing unit 3 corresponding to the inlet 9.
  • the pulses picked up by the scanners 18, 19 are conducted via a line 20 into the control device 15, in which the measured values of the scanners 10, 11 are already stored.
  • the control device 15 compares the values measured at the inlet 9 with those that were measured at the inlet 17. If the width at both inlets 9, 17 is the same, care is taken to ensure that the printing unit 3 overprints the contours 16 to be overprinted, which were produced by the printing unit 2, as desired.
  • control device 15 calculates the corresponding difference and converts it into a correspondingly large control pulse, the size of which corresponds to the calculated difference.
  • a heater 21 is provided in the printing unit 2, which can be designed, for example, as an electric heater and is connected to a power source 22.
  • the current source 22 is connected to the heater 21 via a line 23.
  • a variable resistor 24 by means of which the heat emitted by the heater 21 can be regulated.
  • the control resistor 24 is connected to the control device 15 via a control line 25.
  • the control device 15 controls the control resistor 24 with the aid of the control pulse it emits.
  • any energy source for. B. gas, hot water or steam and controlled by appropriate tax options.
  • the contour 16 is overprinted with a second color, which also represents a first basic color outside the contour 16.
  • the printing unit 3 provides the printing medium 6 with a new contour 26 in this way. Parts of this contour 26 have reached their final coloring at the outlet of the printing unit 3.
  • contour 28 can therefore have a total of three primary colors.
  • the contour 26 is controlled so precisely in the last printing unit 4 that its register prints the color contained therein directly on the contour 26, provided that mixed colors are to be produced.
  • the print carrier 6 must be controlled just as precisely under the printing unit 4 as it has already been controlled under the printing unit 3.
  • 4 scanners 30, 31 are provided at an inlet 29 of the printing medium 6 into the printing unit, which are connected to the control device 15 via a line 32. These scanners 30, 31 scan the width 7 of the print carrier 6. The measured value supplied to the control device 15 via the line 32 is compared with the measured value of the scanner 10, 11, which is stored in the control device 15.
  • the contour 28 runs exactly under the register of the printing unit 4, so that the color printed by them immediately reaches the desired locations on the contour 26. If the measured values of the scanner 30, 31 on the one hand and the scanner 10, 11 on the other hand differ, the control device 15 emits a control pulse.
  • a drying chamber 33 through which the print carrier 6 runs on its way between the printing units 3, 4.
  • This drying chamber 33 is flowed through by dry air, which is generated by a Geb15, 9 34, which can be driven by a motor 35.
  • the blower 34 is connected to the drying chamber 33 via an intake port 36.
  • Intake area 36 opens into drying chamber 33 in the area of a suction side 37.
  • Opposite suction side 37 is a pressure side 38, which is connected to a pressure nozzle 39.
  • This pressure port 39 opens into the ambient air, which is sucked through the pressure port 39 into the drying chamber 33.
  • the air flow sucked in through the pressure nozzle 39 sweeps the pressure carrier 6 on its way towards the suction side 37 and extracts the moisture from it, the removal of which is necessary in order to return the pressure carrier 6 to the same degree that it already had at the inlet 9.
  • the return of the stretch depends on the amount of air drawn through the drying chamber 33. This can be regulated with the aid of the speed of the fan 34.
  • the speed control of the blower 34 is possible with the aid of a gearbox installed between the motor 35 and the blower 34. However, it is also possible to use a motor 35 whose speed can be regulated.
  • Its power supply 40 can be controlled by the control pulse emitted by the control device 15, for example via a control resistor 41.
  • the contour 28 appears, of which individual parts have been newly created in the printing unit 4, while other parts have overprinted the contours 16, 26.
  • the carrier 6 printed in this way is rolled up onto the reel 5.
  • the device according to the invention is expediently provided exclusively with either heaters or drying chambers. Drying using the heated air proves to be the most sensible.
  • the scanning and detection of the width 7 can be carried out in any technically simple and effective manner which is suitable for generating control pulses.
  • the type of scanning and detection is not important.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Printing Methods (AREA)
  • Rotary Presses (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Claims (15)

1 - Procédé d'impression dit au repérage pour imprimer un support d'impression (6) à l'aide d'au moins deux formes d'impressions dont chacune est repérée par rapport à la suivante dans l'ordre de succession dans le temps, le support d'impression (6) étant maintenu sur une trajectoire prédéterminée par rapport auxdites formes d'impression, caractérisé en ce que la dimension du support d'impression (6) est mesurée continuellement sur toute sa largeur (7) par l'intermédiaire de ses bords latéraux et est maintenue constante par la compensation des tensions qui se manifestent dans le support d'impression (6) sous l'effet de l'impression.
2 - Procédé selon la revendication 1, caractérisé en ce que la largeur (7) du support d'impression (6) est mesurée à l'entrée (9) dans le premier groupe d'impression (2), en ce que d'autres mesures de largeur sont exécutées aux entrées (17, 29) d'autres groupes d'impression (3, 4) et leurs résultats sont comparés à la première mesure de largeur, en ce que les différences de largeur qui se manifestent éventuellement sont constatées et enτe que le support d'impression (6) est ramené à sa largeur (7) mesurée initialement par la compensation des différences de largeur.
3 - Procédé selon l'une des revendications 1 et 2, caractérisé en ce que la largeur (7) du support d'impression est mesurée au moment de son déroulement (1) d'une bobine d'alimentation et en ce que, en fonction de la largeur (7) mesurée de cette façon, il s'effectue un réglage approximatif de palpeurs (10, 11; 18,19; 30, 31) à l'aide desquels la largeur (7) du support d'impression (6) pénétrant dans les groupes d'impression (2, 3, 4) est mesurée dans la région de ces groupes.
4 - Procédé selon l'une des revendications 1 à 3, caractérisé en ce que la largeur (7) du support d'impression (6) est maintenue constante par une compensation des tensions présentes dans le support d'impression (6).
5 - -Procédé selon l'une des revendications 1 à 4 caractérisé en ce que la tension régnant dans le support d'impression (6) est modifiée par le degré de séchage de ce support.
6 - Procédé selon l'une des revendications 1 à 5, caractérisé en ce que le séchage du support d'impression (6) est exécuté par une élévation de sa température.
7 - Procédé selon la revendication 6, caractérisé en ce que le séchage du support d'impression (6) est exécuté à l'air.
8 - Procédé selon l'une des revendications 1 à 7, caractérisé en ce que le séchage du support d'impression (6) est exécuté à l'aide d'air chaud.
9 - Dispositif pour imprimer des supports d'impression (6) en une impression à plusieurs couleurs, qui imprime au moins deux couleurs chacune au moyen d'un groupe d'impression (2, 3, 4) pour produire une couleur mélangée désirée et qui est muni d'une commande qui dévie latéralement le support d'impression (6) dans une ligne d'impression d'un groupe d'impression correspondant, conformément au procédé selon l'une des revendications 1 à 8, caractérisé en ce qu'en amont de chaque groupe d'impression (2, 3, 4) qui imprime une couleur donnée, il est prévu au moins un palpeur (10, 11; 18, 19; 30, 31) qui mesure en permanence la largeur du support d'impression (6) par l'intermédiaire de ses bords latéraux, et en ce que les palpeurs sont réunis à un dispositif de réglage (15) qui compare entre eux les résultats de leurs mesures, dispositif qui est lui-méme connecté pour le réglage à un organe actif qui compense une tension présente dans le support d'impression (6).
10 - Dispositif selon la revendication 9, caractérisé en ce que l'organe actif est connecté à un dispositif de chauffage (21) qui chauffe le support d'impression (6).
11 - Dispositif selon l'une des revendications 9 et 10, caractérisé en ce que l'organe actif est constitué par une commande de ventilateur servant à commander un flux d'air.
12 - Dispositif selon la revendication 11, caractérisé en ce que l'organe actif est agencé pour commander un débit d'air.
13 - Dispositif selon la revendication 11, caractérisé en ce que l'organe actif est agencé pour commander une vitesse d'écoulement.
14 - Dispositif selon l'une des revendications 9 à 13, caractérisé en ce que l'organe actif est relié au dispositif de chauffage d'une chambre de séchage (33) et est constitué par une commande de ventilateur qui agit sur le débit d'air traversant la chambre de séchage (33).
15 - Dispositif selon l'une des revendications 9 à 14, caractérisé en ce qu'il est prévu, en aval d'un dérouleur (1) du support d'impression qui déroule ce support d'une bobine d'alimentation, un palpeur (10,11 ) qui mesure la largeur (7) du support d'impression (6) et qui est connecté aux palpeurs (18, 19; 30, 31) associés aux autres groupes d'impression (2, 3, 4) pour procéder à des réglages approximatifs des palpeurs.
EP83103614A 1982-04-16 1983-04-14 Procédé et dispositif pour imprimer des bandes Expired EP0092743B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83103614T ATE21355T1 (de) 1982-04-16 1983-04-14 Verfahren und vorrichtung zum bedrucken von drucktraegern.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3214001A DE3214001C2 (de) 1982-04-16 1982-04-16 Verfahren und Vorrichtung zum Bedrucken von Druckträgern
DE3214001 1982-04-16

Publications (2)

Publication Number Publication Date
EP0092743A1 EP0092743A1 (fr) 1983-11-02
EP0092743B1 true EP0092743B1 (fr) 1986-08-13

Family

ID=6161044

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83103614A Expired EP0092743B1 (fr) 1982-04-16 1983-04-14 Procédé et dispositif pour imprimer des bandes

Country Status (7)

Country Link
US (1) US4798136A (fr)
EP (1) EP0092743B1 (fr)
JP (1) JPS58199156A (fr)
KR (1) KR910007063B1 (fr)
AT (1) ATE21355T1 (fr)
DE (1) DE3214001C2 (fr)
ES (1) ES8402208A1 (fr)

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US4948982A (en) * 1989-07-03 1990-08-14 Somerville Packaging Device for detecting a missing copy by detecting the presence or absence of a colored area on a surface
IT1238116B (it) * 1989-10-16 1993-07-07 Procedimento e sistema per controllare le variazioni di larghezza di nastri in movimento longitudinali, particolarmente nastri di carta in corso di stampa.
DE4008282A1 (de) * 1990-03-15 1991-09-19 Voith Gmbh J M Massnahmen zur erfassung der schrumpfung oder dehnung von warenbahnen
US5237394A (en) * 1991-06-10 1993-08-17 Xerox Corporation Method and apparatus for print verification
US5365847A (en) * 1993-09-22 1994-11-22 Rockwell International Corporation Control system for a printing press
DE4402338B4 (de) * 1994-01-27 2004-04-08 Heidelberger Druckmaschinen Ag Verfahren zum Steuern von geometrischen Veränderungen eines Bedruckstoffes bei einem Betriebsvorgang des Druckens und Trocknens eines Druckbilds
CH690230A5 (fr) * 1995-03-17 2000-06-15 Bobst Sa Procédé et dispositif de contrôle de l'humidité d'une bande de matériau dans une machine d'impression.
DE19644551A1 (de) * 1996-10-26 1998-04-30 Angelo Zaffignani Mehrfarben-Druckmaschine
DE10142636B4 (de) * 2001-08-31 2006-04-20 Maschinenfabrik Wifag Verfahren und Vorrichtung zur Detektion einer Position einer bewegten Bedruckstoffbahn
SE520285C2 (sv) * 2001-10-29 2003-06-17 Straalfors Ab Förfarande och anordning vid löpande banor som försetts med tryck i en höghastighetsprinter
KR100682843B1 (ko) * 2004-04-27 2007-02-15 학교법인 기능대학 인쇄물의 레지스터 자동 조정방법 및 그 장치
DE102007039485A1 (de) * 2007-08-21 2009-02-26 Manroland Ag Verfahren zum Betreiben einer Rollendruckmaschine
DE102007049226A1 (de) * 2007-10-13 2009-04-16 Manroland Ag Verfahren zum Betreiben einer Rollendruckmaschine
DE102007062454A1 (de) * 2007-12-22 2009-07-02 Robert Bosch Gmbh Verfahren zur Regelung einer Bahnspannung und/oder eines Registers
PL2551405T3 (pl) * 2010-03-25 2016-06-30 Japan Tobacco Inc Maszyna do wytwarzania wstęgi o niskiej skłonności do zapalenia, sposób jej wytwarzania oraz sposób wytwarzania bibułki owijającej o niskiej skłonności do zapalenia stosowanej do papierosów
KR20190137141A (ko) 2017-06-20 2019-12-10 가부시키가이샤 슈호 오프셋 인쇄 방법

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US2306607A (en) * 1937-12-30 1942-12-29 Hoe & Co R Web drying method and device
US2359825A (en) * 1941-12-12 1944-10-10 Solar Lab Apparatus for decorating
US2549605A (en) * 1945-04-16 1951-04-17 Hoe & Co R Register control device for web printing machines
GB637136A (en) * 1946-11-21 1950-05-10 Goss Printing Press Co Ltd Improvements in registration control devices
US2674809A (en) * 1950-08-24 1954-04-13 Raduner & Co Ag Apparatus for thermic treatment by infrared radiation
DE1001747B (de) * 1953-11-05 1957-01-31 J F Crosfield Ltd Verfahren zur Regelung der Registerhaltigkeit einer laufenden Bahn, an der ein oder mehrere Arbeitsgaenge auszufuehren sind
US3432672A (en) * 1965-03-04 1969-03-11 Mach O Matic Inc Photoelectric web registration control including two photocells which generate opposite polarity signals that terminate simultaneously
US3570735A (en) * 1968-11-18 1971-03-16 Gpe Controls Inc Method and apparatus of guiding moving webs
GB1584207A (en) * 1977-11-09 1981-02-11 Baker Perkins Holdings Ltd Drying printed web material
JPS5689541A (en) * 1979-12-05 1981-07-20 Rengo Co Ltd Method and device for guiding one side corrugated cardboard

Also Published As

Publication number Publication date
ES521502A0 (es) 1984-01-16
JPS58199156A (ja) 1983-11-19
KR840004385A (ko) 1984-10-15
ATE21355T1 (de) 1986-08-15
EP0092743A1 (fr) 1983-11-02
JPH043305B2 (fr) 1992-01-22
DE3214001C2 (de) 1986-03-13
ES8402208A1 (es) 1984-01-16
US4798136A (en) 1989-01-17
KR910007063B1 (ko) 1991-09-16
DE3214001A1 (de) 1983-11-17

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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