EP1264691A1 - Groupe d'impression - Google Patents

Groupe d'impression Download PDF

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Publication number
EP1264691A1
EP1264691A1 EP02010215A EP02010215A EP1264691A1 EP 1264691 A1 EP1264691 A1 EP 1264691A1 EP 02010215 A EP02010215 A EP 02010215A EP 02010215 A EP02010215 A EP 02010215A EP 1264691 A1 EP1264691 A1 EP 1264691A1
Authority
EP
European Patent Office
Prior art keywords
inking
plate cylinder
cylinder
rollers
unit
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Withdrawn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
EP02010215A
Other languages
German (de)
English (en)
Inventor
Charles Henry Dufour
Charles Reif Hammond
John Thomas Lorrey
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.)
Heidelberger Druckmaschinen AG
Original Assignee
Heidelberger Druckmaschinen 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 Heidelberger Druckmaschinen AG filed Critical Heidelberger Druckmaschinen AG
Publication of EP1264691A1 publication Critical patent/EP1264691A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • B41F7/12—Rotary lithographic machines for offset printing using two cylinders one of which serves two functions, e.g. as a transfer and impression cylinder in perfecting machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F31/00—Inking arrangements or devices
    • B41F31/30—Arrangements for tripping, lifting, adjusting, or removing inking rollers; Supports, bearings, or forks therefor
    • B41F31/302—Devices for tripping inking devices as a whole

Definitions

  • the present invention relates to a printing unit according to the preamble of claim 1.
  • the present invention further relates to a method for changing the Diameter of a plate cylinder according to claim 9.
  • US Pat. No. 5,025,726 describes a printing press with a movable inking unit, where an inking unit for a satellite printing machine automatically from the printing unit is removable when it is in a decoupled position, and automatically with the printing press can be connected when it receives an engagement command.
  • the Plate cylinders of the printing press have a fixed diameter.
  • US 5,640,906 describes a multi-color web-fed rotary printing press with less Height at which the printing units are arranged vertically one above the other in a bridge design and are stored in horizontally adjustable frame sections.
  • the inking units are movable together with their respective pressure cylinder on a common frame.
  • the diameter of the printing unit cylinders is the same.
  • a printing unit with a first plate cylinder, a first Blanket cylinder for printing on a first side of a material web, and with one first inking unit, which has a variety of inking unit rollers for inking the first Includes plate cylinder, the first inking unit between an operating position in which at least one of the inking rollers of the first inking the first plate cylinder contacted, and a rest position in which none of the inking rollers the plate cylinder contacted, can be moved, is characterized in that at least one of the Inking roller in the rest position of the first inking unit depending on the Diameter of the plate cylinder is adjustable.
  • the plate cylinder has a variable diameter having.
  • the diameter of the plate cylinder can be changed automatically, or the diameter can be changed by the plate cylinder by a another plate cylinder with a different diameter is replaced.
  • plate cylinder here denotes any image-bearing cylinder and closes plate cylinders for flat or sleeve-shaped printing plates as well as directly imageable cylinders.
  • the inking unit which comprises the large number of inking unit rollers, can be carried out on one slide be moved as he z. B. is described in US 5,025,726. Are preferred at least two inking rollers depending on the diameter of the plate cylinder adjustable in such a way that it keeps the plate cylinder in the operating position of the inking unit to contact.
  • the plate cylinder can also be exchangeable or at least one include exchangeable jacket element for receiving a pressure plate.
  • a sleeve-shaped rubber blanket is preferably applied to the rubber blanket cylinder.
  • the plate cylinder and the blanket cylinder can be rotated in a central Frame section can be stored, and the inking rollers can be rotated in a first Be mounted frame section that is movable with respect to the central frame section is.
  • a second plate cylinder, a second blanket cylinder for Printing on a second side of the material web, and a second inking unit with one Large number of second inking rollers for inking the second plate cylinder be provided, the second inking unit between an operating position in which at least one of the inking rollers contacts the plate cylinder, and one Rest position, in which none of the inking rollers contact the plate cylinder, can be moved is, and wherein at least one of the inking rollers of the second inking unit in the Rest position of the second inking unit depending on the diameter of the second Plate cylinder is adjustable.
  • the first plate cylinder, the first blanket cylinder, the second plate cylinder and the second blanket cylinders are preferably rotatable in a central frame section added, and the second inking unit is preferably in a second Mounted frame section which is movable relative to the central frame section.
  • the plate cylinder and the blanket cylinder can be by cylinder with different diameters to be interchangeable. However, you can also choose one automatic diameter change can be designed, as z. B. in US 09 / 845,556 is described.
  • the plate cylinders can comprise at least one exchangeable jacket element which a printing plate can be attached, and the blanket cylinder can be at least one include exchangeable jacket element on which a rubber blanket can be attached.
  • the blanket cylinder can be at least one include exchangeable jacket element on which a rubber blanket can be attached.
  • a large number of adjoining jacket elements can be provided in the axial direction so that a wide web can be printed.
  • the blanket cylinders preferably carry a removable blanket that is flat or can be sleeve-shaped.
  • one with the central frame section or the movable one Frame section connected dampening unit can be provided for the plate cylinder.
  • rollers or jacket elements can over the Printing unit a winch or a crane can be provided.
  • the plate cylinder and the second blanket cylinder are preferably in one similar horizontal plane.
  • a common drive motor can be used for the plate cylinder and the blanket cylinder be provided. However, individual drives for the plate cylinder and the Blanket cylinders can be provided.
  • the blanket cylinder and the second Blanket cylinders can be driven by a common drive motor while the plate cylinder and the second plate cylinder each have a single one Have drive motor.
  • the inking units can be operated by one of the drive motors of the Plate cylinder or the blanket cylinder are driven. It is also possible to drive the inking units by at least one single drive motor.
  • a travel mechanism for the movable side frame i.e. the first frame section and the second frame section are provided, e.g. on motorized mechanism with a supporting the movable sections Rail system.
  • a linear motor can be used to move the movable sections be used.
  • the blanket cylinders can work together to print on both sides of a web.
  • an impression cylinder can also be used be provided so that the web is printed on only one side.
  • a method according to the invention for changing the diameter of a plate cylinder, which is supplied with ink by means of an inking unit provides that the Inking unit rollers of the inking unit are turned off by the plate cylinder Diameter of the plate cylinder is changed, and that the inking rollers of the Inking unit can be adjusted to the changed diameter by adjusting.
  • Fig. 1 shows a side view of a web-fed rotary offset printing machine with four Printing units according to the invention.
  • Each printing unit comprises a first plate cylinder 1, of a plurality of axially extending jacket elements, each with a gap for Attach at least one offset printing plate can have. However, it can also around plate cylinders suitable for sleeve-shaped printing plates or for direct imaging act.
  • On a first blanket cylinder 2 an axially removable or a flat rubber blanket 42 (see FIG. 2) can be arranged, but also on similar axial extending jacket elements can be attached.
  • a similarly constructed second Blanket cylinder 12 forms a with the first blanket cylinder 2 Transmission gap through which a web 10 is passed.
  • To transfer one Print image on the second blanket cylinder 12 is a second plate cylinder 11 intended.
  • the blanket cylinders 2, 12 and the plate cylinders 1, 11 are in a central Frame section 5 rotatably added.
  • a winch 20 or a crane 20 can do that Support changing one or more of cylinders 1, 2, 11, 12.
  • a first frame section 6 and a second frame section 8, in which the inking units 4 and 14 are arranged, are movable with respect to the central frame section 5.
  • the inking unit 4 comprises inking unit rollers 3 and feeds 1 ink to the plate cylinder, if at least one, but preferably at least two of the inking rollers 3 den Contact plate cylinder 1. This is achieved in that the first frame section 6 moves in the direction of the central frame section 5 and thus an operating position of the Inking unit 4 is defined.
  • the inking unit 14 comprises inking unit rollers 13 in order to similarly coloring the plate cylinder 11.
  • the inking units 4, 14 are shown in their rest position in FIG. 1. In this position you can the diameter of the plate cylinder 1, 11 can be changed by z. B. the plate cylinder 1, 11 can be replaced by other plate cylinders by means of the winch 20 or automatic diameter change is carried out when the plate cylinder 1, 11 for it are designed. It is also possible to use jacket elements with other jacket elements other diameters can be replaced by this in the axial or radial direction be replaced.
  • Fig. 2 shows the inking units 4, 14 in a position in which they are assigned to the respective Contact plate cylinder 1, 11.
  • the inking unit 4 contacts an offset printing plate, the is located on an outer jacket element 41 of the plate cylinder 1.
  • the Plate cylinder 1 has a radius r1 that extends to the outer surface.
  • the inking unit 4 comprises at least three inking unit rollers 3a, 3b, 3c contact the plate cylinder in the operating position of the inking unit 4 and one Define effective radius that is identical to r1.
  • the inking rollers 3a, 3b, 3c are z. B. designed as inking rollers. At least two of the inking unit rollers 3a, 3b, 3c are z. B. by means of a motor in at least one of the indicated by the arrows Directions x, y movable. They can also be designed to be pivotable.
  • That diameter becomes the "effective diameter" of the inking unit rollers 3a, 3b, 3c referred to, which leads to the circular arc section 50 shown in dashed lines, the Contact or clamp rollers 3a-c in their respective positions.
  • dampening unit 30, 32 For each plate cylinder 1, 11 with the central frame section 5 (Fig. 1) or one of the two movable side sections 6, 8 connected dampening unit 30, 32 be provided.
  • the inking units 4, 14 can then from the respective Plate cylinder 1, 11 removed and moved or moved into a rest position. Then the diameter of the cylinder 1 can be changed by the cylinder itself or the jacket elements are replaced or an automatic Diameter change is carried out so that the cylinder 1 is now a second Radius r2 has. The radius of the blanket cylinder 2 can also be changed become. The effective diameter of the three inking rollers 3a, 3b, 3c can be changed by z. B. in the x direction.
  • the inking units 4, 14 can then again in their Operating position are moved in which all three inking rollers 3a, 3b, 3c Contact plate cylinder 1.
  • Plate cylinder here means any plate cylinder that is different Diameter, at least two different diameters can have.
  • the embodiment of the invention shown thus advantageously allows this Changing or adapting the radius or diameter of a plate cylinder 1, 11 (and / or a blanket cylinder 2, 12) and adjusting an effective radius or diameter of inking rollers 3a-c, which contact the cylinder. there the effective radius or diameter becomes essentially equal to the radius or Diameter of the cylinder selected or set.
  • inking unit rollers and / or dampening unit rollers including those who do not contact the assigned cylinder by moving or positioning adjust the changed cylinder radius or diameter.
  • the Inking rollers 3a-c upstream rollers are also repositioned.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rotary Presses (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
EP02010215A 2001-06-07 2002-05-16 Groupe d'impression Withdrawn EP1264691A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US876600 1986-06-20
US09/876,600 US20020185023A1 (en) 2001-06-07 2001-06-07 Printing unit with inker for varying-diameter plate cylinder

Publications (1)

Publication Number Publication Date
EP1264691A1 true EP1264691A1 (fr) 2002-12-11

Family

ID=25368109

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02010215A Withdrawn EP1264691A1 (fr) 2001-06-07 2002-05-16 Groupe d'impression

Country Status (5)

Country Link
US (1) US20020185023A1 (fr)
EP (1) EP1264691A1 (fr)
JP (1) JP2002370342A (fr)
CN (1) CN1390701A (fr)
DE (1) DE10221744A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4827216B2 (ja) * 2001-09-25 2011-11-30 株式会社ミヤコシ タワー型オフセット輪転機
WO2005005149A2 (fr) * 2003-07-08 2005-01-20 Goss Graphic Systems Limited Presse a imprimer
CN103213378A (zh) * 2013-04-20 2013-07-24 昆山欧莱特印刷机械工业有限公司 双张双面同步复合印刷机辊筒组件
CN109572159A (zh) * 2018-12-31 2019-04-05 高斯图文印刷系统（中国）有限公司 一种紧凑型报纸印刷机

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1243695B (de) * 1964-10-27 1967-07-06 Adamovske Strojirny Np Farbwerk fuer Druckmaschinen
US5025726A (en) 1990-02-27 1991-06-25 Komori Corporation Movable inker type printing machine
US5640906A (en) 1994-08-24 1997-06-24 Albert-Frankenthal Aktiengesellschaft Short multi-color web-fed rotary printing press

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1243695B (de) * 1964-10-27 1967-07-06 Adamovske Strojirny Np Farbwerk fuer Druckmaschinen
US5025726A (en) 1990-02-27 1991-06-25 Komori Corporation Movable inker type printing machine
US5640906A (en) 1994-08-24 1997-06-24 Albert-Frankenthal Aktiengesellschaft Short multi-color web-fed rotary printing press

Also Published As

Publication number Publication date
JP2002370342A (ja) 2002-12-24
US20020185023A1 (en) 2002-12-12
CN1390701A (zh) 2003-01-15
DE10221744A1 (de) 2002-12-12

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