EP0977667A1 - Machine d'impression offset multicolore a feuilles avec dispositif de formation d'image, un dispositif de nettoyage et reglage de l'epaisseur du papier - Google Patents

Machine d'impression offset multicolore a feuilles avec dispositif de formation d'image, un dispositif de nettoyage et reglage de l'epaisseur du papier

Info

Publication number
EP0977667A1
EP0977667A1 EP98931908A EP98931908A EP0977667A1 EP 0977667 A1 EP0977667 A1 EP 0977667A1 EP 98931908 A EP98931908 A EP 98931908A EP 98931908 A EP98931908 A EP 98931908A EP 0977667 A1 EP0977667 A1 EP 0977667A1
Authority
EP
European Patent Office
Prior art keywords
cylinder
machine according
printing machine
printing
bisector
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
EP98931908A
Other languages
German (de)
English (en)
Other versions
EP0977667B1 (fr
Inventor
Arndt Jentzsch
Reinhard Nerger
Michael Pscheidl
Uwe Becker
Volker Kessler
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
Priority claimed from DE1997115242 external-priority patent/DE19715242A1/de
Priority claimed from DE1997115243 external-priority patent/DE19715243B4/de
Priority claimed from DE1997115241 external-priority patent/DE19715241A1/de
Application filed by Koenig and Bauer AG filed Critical Koenig and Bauer AG
Publication of EP0977667A1 publication Critical patent/EP0977667A1/fr
Application granted granted Critical
Publication of EP0977667B1 publication Critical patent/EP0977667B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F35/00—Cleaning arrangements or devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F35/00—Cleaning arrangements or devices
    • B41F35/006—Cleaning arrangements or devices for impression cylinders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F35/00—Cleaning arrangements or devices
    • B41F35/06—Cleaning arrangements or devices for offset cylinders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F7/00—Rotary lithographic machines
    • B41F7/02—Rotary lithographic machines for offset printing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F7/00—Rotary lithographic machines
    • B41F7/02—Rotary lithographic machines for offset printing
    • B41F7/10—Rotary lithographic machines for offset printing using one impression cylinder co-operating with several transfer cylinders for printing on sheets or webs, e.g. satellite-printing units
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2235/00—Cleaning
    • B41P2235/10—Cleaning characterised by the methods or devices
    • B41P2235/20—Wiping devices
    • B41P2235/22—Rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2235/00—Cleaning
    • B41P2235/10—Cleaning characterised by the methods or devices
    • B41P2235/20—Wiping devices
    • B41P2235/24—Wiping devices using rolls of cleaning cloth
    • B41P2235/242—Unwinding the cleaning cloth
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2235/00—Cleaning
    • B41P2235/10—Cleaning characterised by the methods or devices
    • B41P2235/20—Wiping devices
    • B41P2235/24—Wiping devices using rolls of cleaning cloth
    • B41P2235/246—Pressing the cleaning cloth against the cylinder

Definitions

  • the invention relates to a printing press with at least one integrated device for describing printing forms of a printing form cylinder.
  • Two revolutions of the printing cylinder are required to produce a multi-color print, with only one sheet being fed to every second printing saddle. Furthermore, a printed sheet is only removed from every second printing saddle.
  • a disadvantage of this machine configuration is the lack of complexity and compactness, the high space requirement and the poor operability.
  • the object of the invention is to provide a printing press in a compact design.
  • the printing cylinder 1 is preceded by elements 4 for conveying a sheet to be printed from a stack of feed sheets 5 and transferring it to a pre-gripper system 6 which transfers the sheet to the printing cylinder 1.
  • the sheets are fed to the printing cylinder 1 in such a way that only every second gripper row 3 of the printing cylinder is fed with a sheet.
  • a sheet discharge designed as a delivery chain circle 7 is assigned to the printing cylinder 1, which takes over the printed sheet from the printing cylinder 1 and transports it to the delivery sheet stack 8.
  • an arc is removed only from every second gripper row 3 of the printing cylinder 1.
  • each cylinder group contains an offset cylinder 9 with i minus 1, that is in operative connection with the pressure cylinder 1, i.e. two active surfaces and a printing form cylinder 10 with i minus 1, which is in operative connection with the offset cylinder 9, i.e. two active surfaces.
  • the two cylinder groups 11; 18 are arranged in mirror image with respect to a horizontal ⁇ - bisector 12 of an angle ⁇ , which is formed by the connecting lines of the two centers of the offset cylinders 9 with the center of the printing cylinder 13.
  • One cylinder group 11 is thus arranged above and the other cylinder group 18 below the ⁇ bisector 12.
  • the angle ⁇ is in the range of 60 °.
  • the connecting line of the printing form cylinder center 14 / offset cylinder center 15 is arranged at the cylinder group 11 arranged above the ⁇ bisector 12 at an angle ⁇ measured in the clockwise direction to the connecting line of the printing cylinder center 13 / offset cylinder center 15.
  • the angle ⁇ is less than 180 ° and is preferably in the range of 145 °.
  • the angle ⁇ is measured in the cylinder group 18 arranged below the ⁇ -bisector counter-clockwise with respect to the connecting line of the printing cylinder center 13 / offset cylinder center 15.
  • An imaging device 16 is assigned to each printing form cylinder 10.
  • the direction of extension 17 of the imaging device 16, which corresponds to the effective direction thereof, runs in the direction of the printing forme cylinder center 14 and is less than 90 °, preferably in the range of 80 °, in the cylinder group 11 located above the ⁇ -bisector 12 at an angle ⁇ measured in the clockwise direction , to the connecting line center 14 / offset cylinder center 15 arranged.
  • the angle ⁇ is measured in the counterclockwise direction with respect to the connecting line of the printing form cylinder center 14 / offset cylinder center 15.
  • a coloring system 19 is assigned to each active surface of each printing form cylinder 10.
  • the inking system contains an application roller 20.
  • the application rollers 20 assigned to the printing form cylinder 10 are arranged in mirror image with respect to a horizontally arranged ⁇ -bisector 21 of an angle ⁇ , which the connecting lines of the two application roller centers 22 form with the printing form cylinder center 14.
  • the angle ⁇ is in the range of 60 °.
  • the inking system 19 is designed as an anilox inking unit.
  • the anilox inking unit contains an ink metering roller 23, to which a doctor box 24 is assigned.
  • the ink metering rollers 23, like the application rollers 20, are arranged in mirror image to the ⁇ bisector 21.
  • the doctor boxes 24 assigned to the ink metering rollers 23 are arranged vertically one above the other.
  • the cleaning device (FIG. 2) for the printing cylinder 1 and the two associated offset cylinders 9 is designed as a cylinder cleaning device 25 and is arranged on the ⁇ -bisector 12 in a stationary manner (second version) or displaceably on this (first version).
  • the cylinder cleaning device 25 is designed as a cleaning device known per se according to the roller type.
  • Cleaning devices of this type have at least one cleaning roller 26, which is driven either by force or by friction by contacting the cylinder or cylinders to be cleaned. If the cleaning roller 26 is forcibly driven, it is possible to drive it at a peripheral speed which is greater or less than the peripheral speed at which the cylinders to be cleaned rotate.
  • the cleaning roller 26 can be formed in a known manner as a brush roller or be provided with a fleece or elastic elevator.
  • the cylinder cleaning device 25 shown in principle in FIG. 2 has a cleaning roller 26 which is forcibly driven by a motor 44.
  • a moistening device 45 and a doctor blade 46 are operatively connected to the cleaning roller 26.
  • the cylinder cleaning device 25 is designed as a functional unit and can be moved from a detent position 47 (full line representation in FIG. 2) along the ⁇ -bisector 12 to a first working position by means not shown 48 and a second working position 49 (dashed lines in Fig. 2) designed to be displaceable. In the second working position 49, the cleaning roller 26 is operatively connected to the printing cylinder 1.
  • the first working position 48 is characterized in that the offset cylinder centers 15, when the offset cylinders are pivoted from the "pressure at" position 50 to the "pressure from” position 51, lie with the cleaning roller center 26.1 on a straight line g which is perpendicular to the ⁇ - Bisector 12 runs.
  • the geometric dimensions are chosen so that in the first working position 48 the offset cylinders 9 and the cleaning roller 26 are operatively connected.
  • the cylinder cleaning device 25 is moved along the ⁇ -bisector 12 into the second working position 49 in the “pressure at” position 50, subsequently the offset cylinder 15 is placed next to the printing cylinder 1 such that the cylinder 1; 15 no longer touch and subsequently the printing cylinder 1 is cleaned by providing the cleaning roller 26 with a cleaning medium through the moistening device 45. Finally, any dirt on the printing cylinder is removed and removed by a doctor blade 46 placed on the cleaning roller 26.
  • the cylinder cleaning device 25 is brought into the first working position 48, the offset cylinders 9 are pivoted into the “pressure from” position, and the offset cylinders 9 are cleaned analogously to the pressure cylinder 1. It is thus possible to simultaneously clean the offset cylinders 9 with a cylinder cleaning device 25 and subsequently the printing cylinder 1 with the same cylinder cleaning device 25.
  • the cleaning device for the printing plate cylinder 10 and the two associated application rollers 20 is designed as a roller cleaning device 27 and acts analogously to the cylinder cleaning device 25 shown in FIG. 2 separate representation is dispensed with and the corresponding reference numerals are entered in brackets in FIG. 2 when used as roller cleaning device 27. It is also possible to use a roller cleaning device 27 to simultaneously clean the application rollers 20 and subsequently the printing plate cylinder 10 with the same roller cleaning device 27.
  • the cylinder cleaning device 25 which is arranged stationary on the ⁇ -bisector 12, is designed as a cleaning device according to the belt type.
  • Such cleaning devices usually have a cleaning belt 28 which is brought into or out of operative connection with the surfaces to be cleaned by pressing elements 29.
  • the cleaning tape 28 is stored on a supply reel 52 and, when guided through the pressing elements 29, is pulled off the supply reel 52 by means of a winding unit 53 and rewound if necessary.
  • the cylinder cleaning device 25 is designed as a functional unit.
  • the cleaning belt 28 can be provided with a cleaning agent for cleaning with the aid of devices not shown. It is also possible to provide the cleaning cloth pre-impregnated with a cleaning agent on the supply reel 52.
  • the pressing elements 29 are optionally activated and thus the cleaning belt 28 is brought into contact with the cylinder surfaces to be cleaned and thus cleaned. It is thus possible to use a cylinder cleaning device 25 to immediately clean the offset cylinders 9 and the impression cylinder 1.
  • the cleaning tape 28 is pulled from the supply spool 52 in a clocked manner so that always clean cleaning tape 28 comes into contact with the cylinder surfaces to be cleaned.
  • the cylinder cleaning device 25 according to the belt type is arranged in a stationary manner. It is also possible, in order to ensure good accessibility, to assign the cylinder cleaning device 25 according to the belt type, in addition to the working position shown in FIG. 3, to a parking position which is provided at a distance from the offset cylinders 9.
  • the cleaning device for the printing plate cylinder 10 and the two associated application rollers 20 is designed as a roller cleaning device 27 and acts analogously to the cylinder cleaning device 25 shown in FIG. 3. For this reason, a separate illustration has been omitted and the corresponding reference numerals in FIG. 3 when used as a roller cleaning device 27 entered in brackets. So it is also possible lent to clean the application rollers 20 and the printing form cylinder 10 at the same time with a roller cleaning device 27.
  • the offset cylinders 9 are arranged in a known manner in eccentric bearings 30.
  • the frame points 36 of the eccentric bearings 30 lie together with the offset cylinder centers 15 and the printing form cylinder centers 14 in a likewise known manner on a straight line.
  • the printing form cylinders 10 are also arranged in eccentric bearings 37 in order to be able to implement tracking in the case of a paper thickness adjustment.
  • a transmission means 40 attacks, which according to the embodiment. 4 (variant 1) consists of an output member 38 on which a coupling 39 engages, both coupling 39 engaging on a common articulation point 41 which lies on the ⁇ -bisector 12.
  • the articulation point 41 is guided by a cylinder adjusting device 31, likewise arranged on the ⁇ bisector 12, on the ⁇ bisector 12 to the printing cylinder 1 or away from it.
  • the cylinder actuating device 31 has a first actuating element 42 and a second actuating element 43.
  • the first actuator 42 is e.g. formed as a cylinder 32 to which a pressure medium can be applied and which is operatively connected to the second actuating element 43
  • the second actuating element 43 e.g. is designed as an adjusting spindle 33 guided in a nut 34 fixed to the frame.
  • Both the transmission means 41 and the cylinder setting device 31 are arranged mirror-symmetrically to the ⁇ -bisector 12. It is thus possible to simultaneously implement switching and actuating actions of the offset cylinders 9 with a cylinder actuating device 31.
  • a paper thickness setting and by means of the cylinder 32 a “pressure on” or “pressure off” switching can be realized.
  • the transmission means 40 acting on the eccentric bearings 30 are designed as output members 38, which are arranged in mirror image to the ⁇ bisector 12.
  • the cylinder actuating device 31 is arranged on the ⁇ -bisector 12, the first actuating element 42 consisting of two cylinders 32 which are arranged in mirror image to the ⁇ -bisector 12 and can be acted upon by a pressure medium. Each cylinder 32 engages an output member and is supported against the second actuator ment 43 from.
  • the second actuator 43 consists of a nut 34 which is slidably mounted on an adjusting spindle 33 fixed to the frame.

Landscapes

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

Abstract

L'invention concerne une machine à imprimer comportant au moins un dispositif intégré servant à former l'écriture sur des formes d'impression d'un cylindre à formes d'impression. L'objectif de l'invention est la création d'une machine à imprimer compacte. Selon l'invention, cet objectif est atteint par le fait que les groupes de cylindres (11; 18) sont disposés de façon spéculaire par rapport à la bissectrice (12) horizontale de l'angle ( alpha ) formé par les lignes reliant les centres des deux cylindres offset (9) au centre du cylindre d'impression (13).
EP98931908A 1997-04-12 1998-04-09 Machine d'impression offset multicolore a feuilles avec dispositif de formation d'image, un dispositif de nettoyage et reglage de l'epaisseur du papier Expired - Lifetime EP0977667B1 (fr)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
DE19715243 1997-04-12
DE1997115242 DE19715242A1 (de) 1997-04-12 1997-04-12 Druckmaschine mit mindestens zwei einem Druckzylinder zugeordneten Offsetzylindern
DE1997115243 DE19715243B4 (de) 1997-04-12 1997-04-12 Druckmaschine mit Reinigungseinrichtungen zum Reinigen von Zylindern und Walzen
DE19715242 1997-04-12
DE19715241 1997-04-12
DE1997115241 DE19715241A1 (de) 1997-04-12 1997-04-12 Druckmaschine
PCT/DE1998/001044 WO1998046427A1 (fr) 1997-04-12 1998-04-09 Machine d'impression offset multicolore a feuilles avec dispositif de formation d'image, un dispositif de nettoyage et reglage de l'epaisseur du papier

Publications (2)

Publication Number Publication Date
EP0977667A1 true EP0977667A1 (fr) 2000-02-09
EP0977667B1 EP0977667B1 (fr) 2002-03-27

Family

ID=27217291

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98931908A Expired - Lifetime EP0977667B1 (fr) 1997-04-12 1998-04-09 Machine d'impression offset multicolore a feuilles avec dispositif de formation d'image, un dispositif de nettoyage et reglage de l'epaisseur du papier

Country Status (3)

Country Link
EP (1) EP0977667B1 (fr)
DE (1) DE59803516D1 (fr)
WO (1) WO1998046427A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11433663B2 (en) 2017-09-14 2022-09-06 Hp Indigo B.V. Cleaning elements for print apparatus

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE432853C (de) * 1926-08-17 Albert & Cie A G Rotationsgummidruckmaschine
DE402059C (de) * 1922-03-30 1924-09-12 Vogtlaendische Maschinenfabrik Rotationsgummidruckmaschine fuer mehrfarbigen Bogendruck
DE1235953B (de) * 1965-03-17 1967-03-09 Koenig & Bauer Schnellpressfab Bogen-Offset-Rotationsdruckmaschine fuer wahlweisen Schoen- und Widerdruck oder Schoendruck
DE2409219A1 (de) * 1974-02-27 1975-09-04 Maschf Augsburg Nuernberg Ag Satelliten-rotations-offsetdruckwerk
DE3233021A1 (de) * 1982-09-06 1984-03-08 Rotaprint Gmbh, 1000 Berlin Offset-drucker als vervielfaeltiger
JPS6064849A (ja) * 1983-09-19 1985-04-13 Katsuji Akiyama 両面４色刷りオフセット印刷機
ATE84257T1 (de) * 1988-03-23 1993-01-15 Roland Man Druckmasch Vorrichtung zum reinigen der arbeitsflaechen einer arbeitsmaschine, insbesondere in einer druckmaschine.
DE19523378A1 (de) * 1995-06-30 1997-01-02 Koenig & Bauer Albert Ag Bogenoffsetrotationsdruckmaschine
DE29617170U1 (de) * 1996-10-02 1996-11-21 MAN Roland Druckmaschinen AG, 63075 Offenbach Vorrichtung zum Waschen von Zylindern einer Druckmaschine

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9846427A1 *

Also Published As

Publication number Publication date
WO1998046427A1 (fr) 1998-10-22
EP0977667B1 (fr) 2002-03-27
DE59803516D1 (de) 2002-05-02

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