EP1188559A1 - Dispositif pour la formation d'images sur des surfaces cylindriques dans des machines d'impression - Google Patents

Dispositif pour la formation d'images sur des surfaces cylindriques dans des machines d'impression Download PDF

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Publication number
EP1188559A1
EP1188559A1 EP01119302A EP01119302A EP1188559A1 EP 1188559 A1 EP1188559 A1 EP 1188559A1 EP 01119302 A EP01119302 A EP 01119302A EP 01119302 A EP01119302 A EP 01119302A EP 1188559 A1 EP1188559 A1 EP 1188559A1
Authority
EP
European Patent Office
Prior art keywords
cylindrical surfaces
imaging
printing
printing machines
machines according
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
EP01119302A
Other languages
German (de)
English (en)
Other versions
EP1188559B1 (fr
Inventor
Arndt Jentzsch
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 EP1188559A1 publication Critical patent/EP1188559A1/fr
Application granted granted Critical
Publication of EP1188559B1 publication Critical patent/EP1188559B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41C—PROCESSES FOR THE MANUFACTURE OR REPRODUCTION OF PRINTING SURFACES
    • B41C1/00—Forme preparation
    • B41C1/10—Forme preparation for lithographic printing; Master sheets for transferring a lithographic image to the forme
    • B41C1/1075—Mechanical aspects of on-press plate preparation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2227/00—Mounting or handling printing plates; Forming printing surfaces in situ
    • B41P2227/70—Forming the printing surface directly on the form cylinder

Definitions

  • the invention relates to a device for imaging cylindrical surfaces in printing machines, consisting of several processing units arranged next to each other, the plate cylinder are assigned to the printing press and can be moved axially to it.
  • a printing press is known (DE 19612927 A1) which has a seamless image cylinder in a printing unit has, which by a direct imaging process within the printing unit is coated with a dryable polymer. After drying, the property of the surface of the polymer applied to the image cylinder by selective laser radiation completely or regionally converted to change their affinity for an ink.
  • the image cylinder is used instead of a plate cylinder in a conventional offset press either in wet offset printing or in dry offset printing. After printing, the image cylinder cleaned of the layer provided with an image. The layer does not have to be completely removed become.
  • the radiation source, the coating unit and the drying unit are included arranged side by side on a screw spindle and according to the rotation of the screw spindle movable along the length of the cylindrical surface to be imaged. The cleaning facility is arranged separately.
  • the object of the invention is to provide a compact imaging device with a wide Range of applications with regard to use, the chronological sequence and the temporal course of process steps.
  • the advantage of the invention is that the use of the individual processing units can be varied is. It is also possible to adjust the processing intensity of the individual processing units via their Adapting the exposure time to the surface to technological requirements.
  • FIG. 1 shows a printing unit of a multi-color sheet-fed offset printing machine.
  • the printing unit contains a printing cylinder 3 as the sheet-guiding cylinder and as the image transfer cylinder a plate cylinder 1 and a blanket cylinder 2.
  • An inking unit 4 and a dampening unit 5 are assigned to each plate cylinder 1.
  • a printing form (not shown here) can also be clamped.
  • FIG 2 shows details of this embodiment. It can be seen that the traverse 71 in the housing wall 6 of the printing press is mounted.
  • the cross member 71 extends parallel to the surface of the Plate cylinder 1 over the entire width of the printing press (see also Figure 3).
  • a spindle 8 which is mounted in a bearing block 123 in a rotationally fixed manner, extends in parallel.
  • the cross member 71 and the spindle 8 are guided beyond the housing wall 6. This is a breakthrough 61 is provided, which is covered by a bearing housing 121.
  • the bearing housing 121 is from accessible via a coverable opening 124.
  • the first processing unit 9 is arranged on a first slide 91. Firmly connected to this is a first motor 92 that drives a first spindle screw 93. The first spindle screw 93 is in operative connection with the fixed spindle 8. On the first slide 91 are still a quenching head 94 and a suction 95 with a suction hose 96 are arranged as the extinguishing device.
  • the erase head 94 is designed as a high-energy laser. It must (in the direction of movement of the seen first slide 91 - see arrow) the extinguishing head 94 may be arranged in front of the suction 95.
  • the second processing unit 10 Downstream of the processing unit 9 (in the direction of movement of the processing units 9, 10, 11 seen) is the second processing unit 10.
  • This is also arranged on a carriage 101 and has a motor 102 and a spindle screw 103 in the same configuration.
  • This Carriage 101 carries a coating unit 104 here.
  • the coating unit 104 is in the form of an inkjet head executed.
  • the next and in this embodiment the last processing unit 11 in (technological) The result is the third processing unit 11.
  • This is analogous to the processing units described above 9; 10 from a motor 112 with a spindle screw 113.
  • Assigned to the slide 111 are an imaging device and a fixing device 115.
  • processing units 9 there are three processing units 9 in this case; 10; 11 in their parking position on the housing wall 6. They are partially or completely removed from the bearing housing 121 added.
  • the first processing unit 9 travels in the direction of the arrow to the plate cylinder 1.
  • the motor 92 is started up for this purpose. This turns the screw 93. Da the spindle 8 is non-rotatable, the carriage 91 is thus moved in the desired direction.
  • the plate cylinder 1 rotates at a speed adapted to the machining.
  • the erase head 94 When the plate cylinder 1 is reached, the erase head 94 is activated. The laser of the erase head 94 deletes the image information remaining from the previous job or removes the information on the plate cylinder 1 existing shift. The suction 95 picks up the detached particles and guides them these from the field of the printing press. After the old images have been completely removed and reaching the opposite edge zone of the plate cylinder 1 takes the first processing unit 9 there their parking position in the area of the housing wall 6. For this is an analog to the bearing housing 121 built bearing housing 122 is provided.
  • the surface of the plate cylinder 1 thus prepared is now covered by the coating unit 104 of the second processing unit 10 is provided with an imageable layer.
  • the movement the second processing unit 10 is implemented analogously to the first processing unit 9.
  • the introduction this process usually takes place immediately after the old layer or the old image information.
  • the second processing unit 10 also enter their parking position (as described above) on the other side.
  • the third processing unit 11 is now put into operation as the last processing station. This takes place after the applied layer has hardened in the time required for this.
  • the third processing unit 11 moves in an analogous manner over the surface of the plate cylinder 1 the current image information is impressed by the laser of the imaging unit 114 and by the fixing device 115 cured.
  • the processing units 9; 10; 11 After the imaging has taken place, the processing units 9; 10; 11 their parking position at the opposite side. The printing process can now take place. It is advantageous however, the processing units 9; 10; 11 return to their starting point before printing. This is done at a speed that is a multiple of the processing speed equivalent.
  • the processing units 9; 10; 11 in immediate succession or in Complex moving.
  • FIG. 3 shows the parking position of the processing units after the imaging has taken place.
  • a further embodiment of the invention can also be seen from the figure.
  • These are above drive links 132; 142; 152 with the traverse 71 in connection.
  • FIG. 4 shows an embodiment with two cross members 72, 73.
  • the advantage here is that this makes sense especially for versions with a larger number of processing stations can be divided between the two trusses 72, 73, so that there is better space and result in better conditions with regard to the parking positions in the vicinity of the housing wall 6.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacture Or Reproduction Of Printing Formes (AREA)
  • Rotary Presses (AREA)
  • Ink Jet (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
EP01119302A 2000-09-15 2001-08-10 Dispositif pour la formation d'images sur des surfaces cylindriques dans des machines d'impression Expired - Lifetime EP1188559B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10045682 2000-09-15
DE10045682A DE10045682A1 (de) 2000-09-15 2000-09-15 Einrichtung zum Bebildern von zylindrischen Oberflächen in Druckmaschinen

Publications (2)

Publication Number Publication Date
EP1188559A1 true EP1188559A1 (fr) 2002-03-20
EP1188559B1 EP1188559B1 (fr) 2011-03-16

Family

ID=7656325

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01119302A Expired - Lifetime EP1188559B1 (fr) 2000-09-15 2001-08-10 Dispositif pour la formation d'images sur des surfaces cylindriques dans des machines d'impression

Country Status (4)

Country Link
US (1) US6668720B2 (fr)
EP (1) EP1188559B1 (fr)
AT (1) ATE501853T1 (fr)
DE (2) DE10045682A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10039817A1 (de) * 2000-08-09 2002-02-21 Koenig & Bauer Ag Bilderzeugungseinrichtung
JP2004209963A (ja) * 2002-11-11 2004-07-29 Dainippon Screen Mfg Co Ltd 印刷機
DE102004022087A1 (de) * 2004-05-05 2005-12-01 Man Roland Druckmaschinen Ag Verfahren und Vorrichtung zur Herstellung von Druckformen
JP2006103179A (ja) * 2004-10-06 2006-04-20 Dainippon Screen Mfg Co Ltd 印刷機および印刷版記録装置

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19612927A1 (de) * 1995-06-14 1996-11-21 Creo Products Inc Druckmaschine und Bilderzeugungsverfahren für eine Druckmaschine
US5878664A (en) * 1997-07-15 1999-03-09 Hartka; Theodore J Printing system and method

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3167482D1 (en) * 1980-09-03 1985-01-10 Crosfield Electronics Ltd Improvements relating to rotary printing presses
US5129321A (en) * 1991-07-08 1992-07-14 Rockwell International Corporation Direct-to-press imaging system for use in lithographic printing
US5713287A (en) * 1995-05-11 1998-02-03 Creo Products Inc. Direct-to-Press imaging method using surface modification of a single layer coating
DE19624441C1 (de) * 1996-06-19 1997-12-04 Roland Man Druckmasch Verfahren und Vorrichtung für den Tiefdruck mittels einer löschbaren Tiefdruckform
DE19624394C1 (de) * 1996-06-19 1997-12-04 Roland Man Druckmasch Angetriebener Zylinder
DE69702321T2 (de) * 1996-11-07 2000-10-26 Bank Of England Verbesserungen in bezug auf sicherheitsdokumente
DE19710005A1 (de) * 1997-03-12 1998-09-17 Heidelberger Druckmasch Ag Verfahren und Einrichtung zur Gravur von Druckzylindern
EP0986465B1 (fr) * 1997-06-02 2001-11-07 Heidelberger Druckmaschinen Aktiengesellschaft Procede de gravure de cylindres d'impression
DE19734411A1 (de) * 1997-08-08 1999-02-11 Heidelberger Druckmasch Ag Verfahren zum Positionieren von Gravierorganen
US5947020A (en) * 1997-12-05 1999-09-07 Ohio Electronic Engravers, Inc. System and method for engraving a plurality of engraved areas defining different screens
JPH11268227A (ja) * 1998-03-18 1999-10-05 Fuji Photo Film Co Ltd 平版印刷方法
US5996499A (en) * 1998-05-26 1999-12-07 Creo Products Inc. On-site generation of processless thermal printing plates using reactive materials
US6180325B1 (en) * 1999-06-23 2001-01-30 Creo Srl Method for masking and exposing photosensitive printing plates

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19612927A1 (de) * 1995-06-14 1996-11-21 Creo Products Inc Druckmaschine und Bilderzeugungsverfahren für eine Druckmaschine
US5878664A (en) * 1997-07-15 1999-03-09 Hartka; Theodore J Printing system and method

Also Published As

Publication number Publication date
ATE501853T1 (de) 2011-04-15
US6668720B2 (en) 2003-12-30
DE10045682A1 (de) 2002-03-28
DE50115819D1 (de) 2011-04-28
US20020053295A1 (en) 2002-05-09
EP1188559B1 (fr) 2011-03-16

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