EP1047557A1 - Dispositif d'impression - Google Patents

Dispositif d'impression

Info

Publication number
EP1047557A1
EP1047557A1 EP98962249A EP98962249A EP1047557A1 EP 1047557 A1 EP1047557 A1 EP 1047557A1 EP 98962249 A EP98962249 A EP 98962249A EP 98962249 A EP98962249 A EP 98962249A EP 1047557 A1 EP1047557 A1 EP 1047557A1
Authority
EP
European Patent Office
Prior art keywords
printing
printing units
printing unit
units
unit 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
EP98962249A
Other languages
German (de)
English (en)
Other versions
EP1047557B1 (fr
Inventor
Torald Rohloff
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP1047557A1 publication Critical patent/EP1047557A1/fr
Application granted granted Critical
Publication of EP1047557B1 publication Critical patent/EP1047557B1/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
    • 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

Definitions

  • the invention relates to a multicolor printing unit for a sheet-fed rotary printing press, according to the preamble of claim 1.
  • Such printing devices are e.g. made known by US-PS 40 98 185.
  • Several forme cylinders with their inking units are arranged in a semicircle around a blanket cylinder.
  • the blanket cylinder has a multiple diameter of the forme cylinder.
  • An impression cylinder with a controllable gripper row interacts with the blanket cylinder.
  • the impression cylinder has simple, i.e. the same diameter as the forme cylinder.
  • the US-PS 30 41 966 shows a multi-color printing unit for a web-fed rotary printing press with a central impression cylinder and five printing units.
  • the printing units with ink supply, inking roller, forme cylinder and blanket cylinder are not accessible via an operating room, which can be easily accessed from one machine side, i.e. is accessible from the operator or drive side. Rather, the inking units first have to be moved away together in order to reach an operating room for the forme cylinder, blanket cylinder and inking unit rollers.
  • An operating room for the four inking units of a multi-color printing unit according to DE 195 03 619 AI is not from one machine side, i.e. accessible from the operating or drive side. Rather, it is only accessible from the investor side, the cantilever side or from above.
  • the invention has for its object to provide a multi-color printing unit for printing on sheet-shaped print carriers, for example made of paper. This object is solved by the features of claims 1 and 2.
  • a multi-color sheet-fed rotary printing press can be produced in a most compact design. Nevertheless, good access to the ink fountain, anilox roller, inking roller, forme cylinder and the blanket cylinder is guaranteed. Even with sheet-fed rotary printing machines for a small format, for example DIN A3, there is enough space to be able to operate the machine well and to arrange imaging devices for the printing form (plate or film or the form cylinder itself). Four-color printing of the sheets is done in a single gripper closure. This enables a perfect color register. No continuous lifting and placing of inking rollers is necessary during printing.
  • So-called slot fastenings as well as clamp fastenings and sleeves can be used for fastening the covers of the inking rollers, the printing forms and the rubber blankets. Sleeves can also be used with anilox rollers. No dampening device is advantageously provided. It is therefore possible to use printing inks for "waterless” offset printing, UV printing inks, but also printing inks in which the dampening liquid or a chemically bound substitute for the dampening solution is contained in the printing ink even before it is filled into the ink fountain . Printing inks can also be used in which the dampening liquid or its substitute is supplied to the printing ink in the ink fountain. Of course, so-called “hot-melt” printing inks can also be used.
  • the double printing units can be easily assembled from two single printing units. Exemplary embodiments are shown in the drawing and described in more detail below.
  • Figure 1 is a schematic side view of the operator side of a first embodiment of the printing unit according to the invention, consisting of a plurality of double printing units in cooperation with a single multi-field impression cylinder, but without a front side frame;
  • FIG. 2 shows a schematic side view of the operating side of a second exemplary embodiment of the printing unit according to the invention with the double printing unit retracted, but without the front side frame;
  • FIG. 4 a schematic side view of the operating side of a third exemplary embodiment of the printing unit according to the invention with a retracted double printing unit, in which the blanket cylinders are stationary, that is to say cannot be raised and lowered, but without a front side frame;
  • the printing unit 1 essentially consists of: a base frame 2, a plurality of, for example, four printing units 6.1, 6.2, 6.3, 6.4 and a multi-field impression cylinder 8 with a plurality, for example five, controlled gripper rows 9, 11, 12, 13 , 14 with the associated gripper pads.
  • the outer surface of the impression cylinder 8 can have an oleophobic coating.
  • Machine sides important for the operation of the printing units are: the first end face facing a sheet feeder, opposite is the second end face facing a sheet delivery; an upper side that allows access to the printing unit from above. And finally a front machine side 4, which is generally referred to as the "operating side”. Opposite is the back, which is generally referred to as the "drive side” because the drive motors are usually attached to it.
  • the printing unit 1 is fed from a sheet feeder (not shown) sheet-shaped printing medium, for example made of paper, and fed to a sheet delivery (not shown) after multicolor printing.
  • the printing unit 1 is advantageously freely accessible without hindrance by side frames at least from one side via an operating space 5, ie from the "operating side 11 and / or the" drive side ".
  • The" operating side “extends between the inner sides of the side frames from the "operating side 11 to the" drive side ".
  • at least the side frame of the "operating side” is recessed so that free access to the operating room 5 is guaranteed.
  • the operating room 5 is through the v-shaped arrangement of the double printing units 3.1.3.2 (Fig.l) or through the space formed between the individual printing units 5.3, 5.4 (Fig. 2 to 5) as soon as the double printing unit 3.3 has started up.
  • the double printing unit 3.1 has two side frames 17, the double printing unit 3.2 has two side frames 18, the double printing unit 3.3 has two side frames 19, the single printing unit 5.3 has two side frames 20.1, and the single printing unit 5.4 has two side frames 20.2.
  • the double printing units 3.1, 3.2, 3.3 there are devices for two mutually independent ink streams.
  • devices are provided for one color stream each.
  • Double printing units 3.1, 3.2, 3.3 and individual printing units 5.3 and 5.4 are preferably equipped with so-called short inking units, as are shown by way of example in FIG. 1.
  • each of the ink streams is rotatably mounted: an ink metering roller 21, an inking roller 22 with a rubber-elastic jacket 23, and a molding cylinder 24 and a blanket cylinder 26.
  • They all have the same effective circumference or diameter. They are preferably designed as so-called single-circumference cylinders or rollers. Forme cylinder 24 and blanket cylinder 26 could also be designed as a so-called double circumference cylinder. Between the side frames 17, 18, 19, 20.1, 20.2 and attached to them on the inside there is one for each color stream
  • Ink feed device 27 is provided.
  • the ink flow takes place from the ink supply device 27 via the ink metering roller 21 and the inking roller 22 onto a printing form of the forme cylinder 24.
  • the printing form releases its printing pattern onto a blanket of the blanket cylinder 26.
  • the blanket cylinders 26 each form a printing point for the printing sheet-like printing medium, for example made of paper, with the outer surface, ie the, for example five, fields 9.1, 11, 12, 13, 14.1 of the impression cylinder 8.
  • the ink supply devices 27 can be of various types.
  • a conventional ink fountain with ink knife / s can also be provided. So e.g. with negative working squeegee and positive closing squeegee. Or also with a negatively employed working and closing squeegee.
  • the condition of the jacket of the ink metering rollers 21 is adapted to the material properties of the ink knife or that of the doctor blade.
  • the jacket is oleophilic and can be made of metal, plastic or ceramic or the like.
  • the surface of the jacket can be smooth or textured, e.g. Have wells or so-called hash or combinations of both.
  • the forme cylinders 24 have fastening devices for flat form printing plates (wet offset, dry offset) or flat form sleeves which are known per se and are covered with them.
  • the form cylinders 24 could also be exchangeably removable. They are mounted for turning the pressure on and off in known, rotatable eccentric bushings in the side frames 17, 18, 19, 20, 20.2.
  • the blanket cylinders 26 are equipped with known fastening devices for blankets or blanket sleeves.
  • a multi-field gripper drum 8 (counter pressure cylinder) is mounted in a driven manner. It is known as Multiple circumferential drum executed. This means that their effective circumference or diameter is a multiple of the effective circumference or diameter of a single circumference form or blanket cylinder.
  • the number of their fields 9.1, 11.1, 12.1, 13.1, 14.1 corresponds to the number of controlled gripper rows 9, 11, 12, 13, 14. They each directly adjoin them and they form the counter-pressure surfaces for the blanket cylinders 26.
  • the printing units 1 and 28 for multicolor, preferably four-color printing, consist of a plurality, for example four printing units 3.1 to 3.4 and a single impression cylinder 8 assigned to them.
  • the effective diameter of the impression cylinder 8 of such a multi-color printing unit 1 or 28 according to the invention is at least equal to or greater than the product of the multiplicand: "effective diameter of the forme cylinder 24 or blanket cylinder 26 "and the multiplier:" Number of printing units (6.1 to 6.4 or 5.1 to 5.4) of printing unit 1 (FIG. 1) or printing unit 28 (FIG.
  • the number of fields 9.1 to 14.1 on the circumference of the impression cylinder 8 is selected accordingly. In a four-color printing unit 28, at least three of the fields 9.1 to 14.1 are therefore provided. Or four-, five-, six-, etc.- the outer surface of the impression cylinder 8 could be.
  • Conventional grippers can be used for the gripper rows 9 to 14 (not shown). It would be particularly advantageous to use grippers known per se which are designed in such a way that after they are closed they come to lie entirely within the circular periphery of the impression cylinder 8.
  • the printing units 6.1 to 6.4, 5.1 to 5.4, each with an ink supply device 27, ink metering roller 21, inking roller 22, forme cylinder 24 and blanket cylinder 26 can, ie already described above and shown in FIGS. 1 to 3, designed as double printing units 3.1 to 3.3 or as single printing units 5.3 to 5.4 (FIGS. 2 and 3) and fastened to the base frame 2.
  • Double printing units 3.1 to 3.3 are two printing units, e.g. 5.1 with 5.2, or 6.1 with 6.2, summarized so that they form a functional unit. That when assembled, they form a unit.
  • a plurality of double printing units 3.1, 3.2 can be assigned to one impression cylinder 8.
  • double printing units 3.3 and individual printing units 5.3 and 5.4 can be assigned to an impression cylinder 8 in a mixing arrangement. So e.g. a double printing unit 3.3 and several, e.g. two, single printing units 5.3, 5.4.
  • a single printing unit 5.3 and 5.4 are preferably arranged on the left and right on the double printing unit 3.3 and can be shifted in height and locked.
  • Double printing unit 3.3 and the individual printing units 5.3 and 5.4 are preferably arranged close together (ie their side frames are not spaced apart).
  • left and right side surfaces of the side frames 19 of the double printing unit 3.3 and the inner side surfaces of the side frames 20.1 and 20.2 of the individual printing units 5.3 and 5.4 can be positively connected by means of a guide, for example a dovetail guide. It is possible that the individual printing units 5.3 and 5.4 are stationary, ie are rigidly connected to the base frame 2.
  • the double printing unit 3.3 must be able to be moved up and down and raised as far and locked in such a position that access to the two forme cylinders 24 and / or the two blanket cylinders 26 is possible comfortably and safely.
  • the double printing unit 3.3 it is also possible for the double printing unit 3.3 to be stationary, i.e. is permanently connected to the base frame 2. Then, to change printing plates and / or blankets of the double printing unit 3.3, the individual printing units 5.3, 5.4 must be able to be moved up and down and locked. To move the double printing unit 3.3 and the individual printing units 5.3 and 5.4 up and down, a rack is fastened in the guides of the printing unit 3.3 or 5.3 and 5.4 to be moved. The toothing of the toothed racks meshes with a pinion of a self-locking gear. The gearbox is e.g. driven by an electric motor. The gear unit is supported on the immovable printing unit / s.
  • the gears are supported on the side frames 20.1 and 20.2 of the individual printing units 5.3 and 5.4. If, on the other hand, the individual printing units 5.3, 5.4 can be moved up and down, the gears are supported on the side frames 19 of the double printing unit 3.3.
  • a safety device e.g. so-called latch locks may be provided.
  • the double printing unit 3.3 can also be divided horizontally.
  • the two blanket cylinders 26 are stored in a stationary frame. So they cannot be opened and closed. Only the ink supply devices 27 and the other cylinders 21, 22, 24 can be raised and lowered together.
  • Double printing unit 3.3 and the individual printing units 5.3, 5.4 can, however, also be arranged a few centimeters apart.
  • the double printing units and individual printing units can be driven by a common gear train from a common main drive of the printing press or by speed-controlled individual drives (frequency-controlled three-phase motor).
  • Two printing devices 1 and / or 28 according to the invention which are connected in series can be interposed by known / n
  • Sheet transfer drum / s with only controllable gripper rows or known sheet transfer drum / s with sheet turning device can be expanded. As a result, the number of colors can be increased and / or a multicolored perfecting can be made possible.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rotary Presses (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Printers Characterized By Their Purpose (AREA)

Abstract

Selon l'invention, dans une rotative à imprimer à feuilles, plus de deux groupes d'impression sont disposés autour d'un cylindre de contre-pression, ces groupes d'impression étant combinés pour former des groupes d'impression doubles. Dans une autre forme de réalisation, les groupes d'impression s'étendent dans le sens vertical et sont disposés l'un contre l'autre ou l'un à côté de l'autre avec un faible espace. Un certain nombre desdits groupes d'impression peut être levé et abaissé.
EP98962249A 1997-11-18 1998-11-05 Dispositif d'impression Expired - Lifetime EP1047557B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19750885 1997-11-18
DE19750885A DE19750885C1 (de) 1997-11-18 1997-11-18 Druckeinrichtung
PCT/DE1998/003302 WO1999025556A1 (fr) 1997-11-18 1998-11-05 Dispositif d'impression

Publications (2)

Publication Number Publication Date
EP1047557A1 true EP1047557A1 (fr) 2000-11-02
EP1047557B1 EP1047557B1 (fr) 2001-12-19

Family

ID=7848985

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98962249A Expired - Lifetime EP1047557B1 (fr) 1997-11-18 1998-11-05 Dispositif d'impression

Country Status (8)

Country Link
US (1) US6220156B1 (fr)
EP (1) EP1047557B1 (fr)
JP (1) JP3469196B2 (fr)
CN (1) CN1103687C (fr)
BR (1) BR9814881A (fr)
DE (2) DE19750885C1 (fr)
RU (1) RU2175608C1 (fr)
WO (1) WO1999025556A1 (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19955223C2 (de) * 1999-11-17 2002-09-12 Stork Gmbh Druckeinrichtung zum beidseitigen simultanen Bedrucken von bogenförmigen starren oder flexiblen Substraten oder Substratbahnen
DE29921184U1 (de) * 1999-12-03 2001-04-12 Web Tech Licensees B.V., Badhoevedorp Satellitendruckmaschine zum Bedrucken von Bogen und Bahnen
DE29921185U1 (de) * 1999-12-03 2001-04-12 Web Tech Licensees B.V., Badhoevedorp Satellitendruckmaschine zum Bedrucken von Bogen und Bahnen
US6474231B1 (en) * 2000-07-26 2002-11-05 Heidelberger Druckmaschinen Ag Multi-color printing press with common blanket cylinder
EP1205297A1 (fr) * 2000-11-11 2002-05-15 Torald Rohloff Unité d'impression polychrome pour une machine d'impression rotative à feuilles
DE10111362A1 (de) * 2001-03-06 2002-09-19 Koenig & Bauer Ag Druckeinheit
JP3624881B2 (ja) * 2001-12-19 2005-03-02 株式会社篠原鉄工所 サテライト型印刷機のシート反転装置
US6772683B2 (en) 2002-02-19 2004-08-10 Sun Chemical Corporation Method and apparatus for wet trapping with energy-curable flexographic liquid inks
JP4621957B2 (ja) * 2003-10-27 2011-02-02 株式会社シノハラ モジュール化したシート反転装置
US20120226249A1 (en) 2011-03-04 2012-09-06 Michael Scott Prodoehl Disposable Absorbent Articles Having Wide Color Gamut Indicia Printed Thereon
EP2886093B1 (fr) 2013-12-19 2016-09-21 The Procter and Gamble Company Article absorbant comprenant une ou plusieurs zones colorées
CN112026336A (zh) * 2020-09-27 2020-12-04 李英 一种印刷用自动补油墨的印刷机

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US3041966A (en) * 1959-09-24 1962-07-03 Hoe & Co R Multicolor web offset press
US4098185A (en) * 1972-03-16 1978-07-04 North Shore Precision Research Corporation Printing press
DE3712703A1 (de) * 1987-04-14 1988-11-03 Heidelberger Druckmasch Ag Bogenrotations-druckmaschinen fuer mehrfarbendruck
US4936211A (en) 1988-08-19 1990-06-26 Presstek, Inc. Multicolor offset press with segmental impression cylinder gear
US5469787A (en) 1994-03-15 1995-11-28 Heath Custom Press, Inc. Multi-color printing press
DE19503619A1 (de) * 1995-02-03 1996-08-08 Heidelberger Druckmasch Ag Koppelbare Satelliltendruckwerke
DE19523378A1 (de) * 1995-06-30 1997-01-02 Koenig & Bauer Albert Ag Bogenoffsetrotationsdruckmaschine

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9925556A1 *

Also Published As

Publication number Publication date
WO1999025556A1 (fr) 1999-05-27
RU2175608C1 (ru) 2001-11-10
JP3469196B2 (ja) 2003-11-25
DE19750885C1 (de) 1999-04-08
EP1047557B1 (fr) 2001-12-19
DE59802585D1 (de) 2002-01-31
CN1278211A (zh) 2000-12-27
BR9814881A (pt) 2000-10-03
JP2001523598A (ja) 2001-11-27
US6220156B1 (en) 2001-04-24
CN1103687C (zh) 2003-03-26
RU2000115953A (ru) 2004-03-20

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