EP3237210A1 - Presse rotative - Google Patents

Presse rotative

Info

Publication number
EP3237210A1
EP3237210A1 EP15808204.0A EP15808204A EP3237210A1 EP 3237210 A1 EP3237210 A1 EP 3237210A1 EP 15808204 A EP15808204 A EP 15808204A EP 3237210 A1 EP3237210 A1 EP 3237210A1
Authority
EP
European Patent Office
Prior art keywords
cylinder
navigation field
pointer
printing machine
sensitive
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Withdrawn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
EP15808204.0A
Other languages
German (de)
English (en)
Inventor
Frank Gunschera
Martin Krümpelmann
Björn Weidmann
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.)
Windmoeller and Hoelscher KG
Original Assignee
Windmoeller and Hoelscher 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 Windmoeller and Hoelscher KG filed Critical Windmoeller and Hoelscher KG
Publication of EP3237210A1 publication Critical patent/EP3237210A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F5/00—Rotary letterpress machines
    • B41F5/24—Rotary letterpress machines for flexographic 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
    • B41F13/08—Cylinders
    • B41F13/10—Forme cylinders
    • B41F13/12—Registering devices
    • B41F13/14—Registering devices with means for displacing the cylinders

Definitions

  • the invention relates to a rotary printing press with a first cylinder, which can be adjusted in the printing operation to a second cylinder.
  • the invention relates to a central cylinder flexographic printing machine, as it is known for example from WO 2009/144012 A1.
  • Such flexographic printing machines have a central cylinder around which the individual inking units are arranged in satellite construction. The printing material is guided past the individual inking units during the entire printing process on the central cylinder. In this way, for example, stretchable plastic films can be printed with a high print quality.
  • the central cylinder Prior to printing, it is necessary in such a central cylinder flexographic printing presses to position the individual printing form cylinders register-accurate on the central cylinder.
  • Anstellparameter are at least the contact pressure in the nip and the side register and the longitudinal register of the relevant plate cylinder to be considered.
  • the central cylinder In order to keep the adjusting parameters once adjusted during the printing process as constant as possible during the printing process, the central cylinder must also be manufactured with high concentricity (about 5 mm) and tempered with a tolerance of about ⁇ 1 ° C (1 ° C temperature difference with a steel cylinder of 1.80 m diameter already cause a diameter difference of about 10 pm).
  • WO 2012/028358 A1 discloses a flexographic printing press in which reference marks are provided in the printing forme cylinders and one or more detectors for detecting the reference mark are provided in the central cylinder.
  • the detectors must be connected during the production of the central cylinder with a control unit, which increases the manufacturing cost of the central cylinder.
  • the object of the invention is therefore to provide a flexographic printing machine, which allows an automated and economic aspects of optimal adjustment of Anstellparameter. This object is solved by the features of patent claim 1.
  • the solution according to the invention comprises a rotary printing press with a first cylinder which can be set to a second cylinder in the printing operation, wherein the first cylinder has a sensitive navigation field on the peripheral surface thereof, the second cylinder having on its peripheral surface a pointer suitable for this purpose to show a point within the sensitive navigation field of the first cylinder as soon as the first cylinder and the second cylinder are positioned in a certain navigation area to each other, and wherein the sensitive navigation field of the first cylinder is adapted to detect the position of said point.
  • Fig. 1 shows a first embodiment of the invention in one
  • FIG. 2 shows a second embodiment of the invention in one
  • Fig. 3 shows a sensitive navigation panel according to the invention according to the inductive principle
  • FIG. 4 shows a sensitive navigation field according to the invention according to FIG. 4
  • Fig. 1 shows a first embodiment of the invention in a central cylinder flexographic printing machine.
  • the cylinder 101 is a plate cylinder with the center M1 and the radius R1, which is against the central cylinder 102 with the center M2 and the radius R2 to stell bar.
  • several inking units are arranged, each with a printing forme cylinder, of which, for reasons of simplicity, however, only one printing plate cylinder 101 is shown in Fig. 1.
  • the printing form cylinder 101 and the central cylinder 102 have parallel axes A and B.
  • the plate cylinder 101 in the X-Z plane against the central cylinder 102 can be adjusted, the plate cylinder 101 and the central cylinder 102 then rotate, for example in the directions of rotation C and D about their axes A and B.
  • a sensitive navigation field 103 which cooperates with at least one pointer 106, 108, which is embedded in the peripheral surface of the central cylinder, is located on the circumferential surface of the format cylinder 101.
  • the interaction preferably takes place in the manner known from so-called digitizing tablets from the field of computers.
  • Denoted at 04 is a broken portion on the peripheral surface of the central cylinder 102 to make the recessed hands 106 and 108 visible.
  • the pointers 106 and 108 form at the points 105 and 107 a flush termination with the lateral surface of the central cylinder 102.
  • initially only one pointer is provided, so for example the pointer 106.
  • it is advantageous to provide a pointer for each inking unit of which again only the pointer 108 is shown in Fig. 1 as a further pointer.
  • the positioning parameters can be automatically detected and controlled in parallel for all inking units.
  • FIG. 2 shows a second embodiment of the invention in a central cylinder flexographic printing machine.
  • the plate cylinder 201 and the central cylinder 202 basically correspond to the representation of the first embodiment in FIG. 1, so that the designations with respect to axes, Turning, centers and radii of Fig. 1 were taken.
  • the difference between the second exemplary embodiment and the first exemplary embodiment is that at least one sensitive navigation focus 203, 209 is now embedded in the peripheral surface of the central cylinder 202, whereas at least one pointer 206 is embedded in the circumferential surface of the format cylinder 201.
  • the relationships between pointer and navigation field are thus just reversed, as regards their position relative to the format cylinder and the central cylinder.
  • Denoted at 204 is a broken portion on the peripheral surface of the form cylinder 201 to make the recessed pointer 206 visible.
  • the pointer 206 forms at the point 205 a flush termination with the lateral surface of the format cylinder 201.
  • the pointer 206 cooperates with a sensitive navigation panel 203, 209 embedded in the peripheral surface of the central cylinder 202.
  • a sensitive navigation field is initially provided, for example the navigation field 206. Since several inking units are arranged around the central cylinder 202, it is advantageous to provide a navigation field for each inking unit, of which in turn FIG another navigation field only the navigation field 208 is shown. In this way, the positioning parameters can be automatically detected and controlled in parallel for all inking units.
  • FIG. 3 shows a sensitive navigation field 301 according to the invention according to the inductive principle.
  • the sensitive navigation field 301 can be positioned, for example, on the printing form cylinder 101 according to FIG the sensitive navigation panel 103 is shown in FIG.
  • the sensitive navigation field 301 may also be positioned, for example, on the central cylinder 202 according to FIG. 2, as shown by the sensitive navigation field 203 in FIG. 2.
  • the sensitive navigation field 301 consists of the label or of a flexible board on which a strip conductor matrix 303 together with a Ausenseelektrontk and an RFID chip 304 are applied.
  • the sensitive navigation field 301 interacts with a pointer 302, where the pointer 302 is adapted to point to a point within the sensitive navigation field 301.
  • the pointer 302 consists for this purpose of a corresponding coil, which is controlled by a control unit 306.
  • a receiving unit 305 is connected, which is suitable for reading or writing the RFID chip 304.
  • Report rate 220 reports per second
  • the interaction between the sensitive navigation field 301 and the pointer 302 will be described below by way of example with reference to the arrangement according to FIG. 1, without the invention being restricted to this arrangement.
  • the sensitive navigation field 301 in this case corresponds to the sensitive navigation field 103 and the pointer 302 corresponds to the pointer 106 for this case.
  • the strip conductor matrix 303 together with the associated evaluation electronics detects the position to which the pointer 302 points. This position is transmitted via the connection 308 to the RFID chip 304.
  • information about inclination and pressure may also be transmitted over the connection 308.
  • the information stored on the RFID chip 304 is read out by the receiving unit 305 via the connection 309 and forwarded via the connection 310 to the control unit 306.
  • the control unit 306 has an interface 311 to the other control components of the printing press and can automatically and precisely adjust the adjustment parameters of the printing press, that is to say in particular set-up pressure, page register and longitudinal register, with the available information.
  • the sensitive navigation field 401 may be positioned, for example, on the printing form cylinder 101 according to FIG. 1, as shown by the sensitive navigation field 103 in FIG. 1. However, the sensitive navigation field 401 may also be positioned on the central cylinder 202 according to FIG. 2, for example, as shown by the sensitive navigation field 203 in FIG. 2.
  • the sensitive navigation field 401 is combined with a pointer 402, which is designed as an ultrasonic transmitter 402.
  • the axis 403 of the ultrasonic transmitter 402 is adapted to point to a point 404 within the sensitive navigation field 401.
  • the sensitive navigation panel 401 has ultrasonic receivers 405, 406, 4.07 and 408 at one corner.
  • the transit time of the ultrasonic transmitter 402 and the Ultraschallempfnature 405, 406, 407 and 408 can be converted according to the principle of triangulation on the position of the point 404 within the sensitive Navigationsfeides. In principle, three ultrasonic receivers are already sufficient for this, so that the redundant fourth ultrasonic receiver can be used to increase the accuracy of the position calculation. LIST OF REFERENCE NUMBERS

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)

Abstract

L'invention concerne une presse rotative munie d'un premier cylindre qui peut être placé contre un deuxième cylindre pendant le déroulement de l'impression. L'invention vise à créer une presse flexographique qui permette un ajustement des paramètres de réglage automatisé et optimal du point de vue économique. À cet effet, la presse rotative selon l'invention est munie d'un premier cylindre qui peut être placé contre un deuxième cylindre pendant le déroulement de l'impression. Le premier cylindre présente sur sa surface circonférentielle un panneau de navigation sensitif, et le deuxième cylindre présente sur sa surface circonférentielle un pointeur qui est conçu pour pointer un point à l'intérieur du panneau de navigation sensitif du premier cylindre dès que le premier cylindre et le deuxième cylindre sont positionnés l'un par rapport à l'autre dans une zone de navigation déterminée, le panneau de navigation sensitif du premier cylindre étant conçu pour détecter la position dudit point.
EP15808204.0A 2014-12-22 2015-12-11 Presse rotative Withdrawn EP3237210A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014226766.8A DE102014226766A1 (de) 2014-12-22 2014-12-22 Rotationsdruckmaschine
PCT/EP2015/079355 WO2016102205A1 (fr) 2014-12-22 2015-12-11 Presse rotative

Publications (1)

Publication Number Publication Date
EP3237210A1 true EP3237210A1 (fr) 2017-11-01

Family

ID=54848568

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15808204.0A Withdrawn EP3237210A1 (fr) 2014-12-22 2015-12-11 Presse rotative

Country Status (3)

Country Link
EP (1) EP3237210A1 (fr)
DE (1) DE102014226766A1 (fr)
WO (1) WO2016102205A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016213111B4 (de) * 2016-07-19 2018-08-09 Koenig & Bauer Ag Inspektionssystem mit mehreren Erfassungsbereichen
EP4201677A1 (fr) * 2021-12-22 2023-06-28 Bobst Bielefeld GmbH Machine d'impression

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005048812B4 (de) * 2005-10-10 2011-02-10 Universität Stuttgart Steuerung werkstückbearbeitender Maschinen
DE102007059507B4 (de) * 2007-12-11 2012-01-26 Fischer & Krecke Gmbh Druckmaschine mit Walzensensor
EP2100732A1 (fr) * 2008-03-13 2009-09-16 Fischer & Krecke GmbH Procédé et outil d'étalonnage pour étalonner une presse d'impression rotative
DE102008025993B4 (de) 2008-05-29 2010-02-25 Windmöller & Hölscher Kg Druckmaschine mit mehreren Farbwerken
EP2422979A1 (fr) 2010-08-31 2012-02-29 Fischer & Krecke GmbH Presse d'impression rotative avec cylindre d'impression centrale

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2016102205A1 *

Also Published As

Publication number Publication date
DE102014226766A1 (de) 2016-06-23
WO2016102205A1 (fr) 2016-06-30

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