EP0387485B1 - Dispositif pour changer de position le deuxième rouleau (supérieur) d'une paire de rouleaux intermédiaires de raccordement entre les groupes d'encrage et de mouillage - Google Patents

Dispositif pour changer de position le deuxième rouleau (supérieur) d'une paire de rouleaux intermédiaires de raccordement entre les groupes d'encrage et de mouillage Download PDF

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Publication number
EP0387485B1
EP0387485B1 EP90100479A EP90100479A EP0387485B1 EP 0387485 B1 EP0387485 B1 EP 0387485B1 EP 90100479 A EP90100479 A EP 90100479A EP 90100479 A EP90100479 A EP 90100479A EP 0387485 B1 EP0387485 B1 EP 0387485B1
Authority
EP
European Patent Office
Prior art keywords
roller
intermediate roller
lever
spindle
inking
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.)
Expired - Lifetime
Application number
EP90100479A
Other languages
German (de)
English (en)
Other versions
EP0387485A3 (fr
EP0387485A2 (fr
Inventor
Roland Höll
Herbert Rebel
Peter Hummel
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.)
Manroland AG
Original Assignee
MAN Roland 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 MAN Roland Druckmaschinen AG filed Critical MAN Roland Druckmaschinen AG
Priority to AT90100479T priority Critical patent/ATE96088T1/de
Publication of EP0387485A2 publication Critical patent/EP0387485A2/fr
Publication of EP0387485A3 publication Critical patent/EP0387485A3/fr
Application granted granted Critical
Publication of EP0387485B1 publication Critical patent/EP0387485B1/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
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F7/00—Rotary lithographic machines
    • B41F7/20—Details
    • B41F7/24—Damping devices
    • B41F7/36—Inking-rollers serving also to apply ink repellants
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F7/00—Rotary lithographic machines
    • B41F7/20—Details
    • B41F7/24—Damping devices
    • B41F7/40—Devices for tripping or lifting damping rollers; Supporting, adjusting, or removing arrangements therefor

Definitions

  • the invention relates to a device on offset printing presses for converting the second (upper) intermediate roller of an intermediate roller pair connecting an inking unit to a dampening unit according to the preamble of the first claim.
  • An intermediate roller pair is also known from a research report No. 3,216 "Dampening unit examination" by the Federal Printing Association or the German Research Association for Printing and Reproduction Technology (FOGRA), page 30, Figure 38. Both dampening fluid and ink are applied to the plate cylinder via the dampening unit's application rollers. Such an operation is well suited for a number of printing jobs, e.g. for heavily covered subjects that do not tend to stenciling.
  • the object of the invention is to develop the generic device so that either two intermediate rollers can be assigned to a combined dampening and inking unit as connecting rollers or the applicator roller of the dampening unit as the first rider roller and second over-rider roller (tandem roller), with the possibility being given in this roller position to insert a third intermediate roller in the bearing of the second intermediate roller converted to the application roller of the dampening unit as a tandem roller as an additional connecting roller to the inking unit in contact with the first intermediate roller which has not been converted.
  • the device With the first setting of the intermediate rollers 3, 4 as connecting rollers between the dampening and inking units, the device has four nip points to the first inking roller, the upper intermediate roller acting as a storage and smoothing roller on the first inking cylinder.
  • the second setting with intermediate rollers 3, 4 lying laterally on the applicator roller of the dampening unit stenciling due to channel reactions of the plate cylinder can be combated as a result of dampening and inking unit separation by means of the two rider rollers on the dampening unit's application roller.
  • a paint-dampening system connection is established again.
  • the latter setting enables the ink / fountain solution balance to be established very quickly and is also highly effective against stenciling in both the inking and dampening units.
  • the device comprises a plate cylinder 1, which is mounted by means of pins at both ends in side walls 32 of the printing press.
  • the pins are driven in a known manner, not shown in detail, by gearwheels arranged outside the side walls 32 from the main drive of the machine.
  • a water box is provided for supplying the dampening liquid, in which a water box roller 5 is partially immersed. The strength of the dampening liquid is adjusted by means of a metering roller 6.
  • the film dampening unit 2, 5, 6 thus guides the dampening liquid directly onto the pressure plate of the plate cylinder 1 and in a very short way, so that the dampening solution evaporation is kept low.
  • the drive of the dampening unit rollers or the inking unit rollers is known and will not be explained in more detail. All dampening unit rollers 2, 5, 6 and the intermediate rollers 3, 4 between the dampening unit and inking unit can be adjusted to one another, this being done in a known manner, for example by mounting the rollers on adjustable eccentric bushings or by arranging set screws and / or by attaching springs or the like mutual bracing of the roller-receiving bearing levers can take place.
  • an axially pivotable e.g. supported on the side walls 32 supported bearing lever 10, which receives the thru axle 13 of the first intermediate roller 3 in a bearing position open on one side by means of a roller lock 26.
  • the thru axle 13 is secured in the bearing by turning.
  • the roller jacket of the first intermediate roller 3 is rotatably received on the thru axle via roller bearings.
  • a bearing lever 11 which can be pivoted about its center, is supported in the axial direction on both sides of the pin of the inking cylinder 8 and receives the plug-in axis 12 of the second (upper) intermediate roller 4 in a bearing point open on one side by means of a roller lock 15.
  • a pivot lever 9 is articulated, which on upper end in an open on one side bearing by means of a roller lock 14 additionally receives the upper intermediate roller 4.
  • a section 20 of the thru axle 12 in the region of the bearing point serves as the roller lock 14, which is flattened with two edges and can be inserted into the bearing point through a slot 18.
  • the slots 18, 19 and the flattened sections 20, 21 are offset from one another so that the plug-in axis 12 remains locked in the pivot lever 9 when unlocked from the bearing lever 11, so that the second intermediate roller can be changed over and only in the changed position Turning the thru axle unlocked after loosening a pressure piece 31 and can thus be removed.
  • the pressure piece 31 fixes the pivot lever 9 on the thru axle 12 when the roller lock 15 is actuated.
  • the roller lock 15 is opened by rotating the thru axle 12 by approximately 90 °, so that the second intermediate roller 4 is unlocked.
  • the pivot lever 9 has guide means 16, 17 in the form of the coaxial bushing 17 on a portion of the thru-axle 13 and an elongated hole 16, the position of which is selected so that when the intermediate rollers 3, 4 touch, the upper contact surface of the elongated hole 16 on the bushing 17th sits on.
  • the bushing 17 at the same time secures the inner rings of the rolling bearings of the first intermediate roller 3, which are indicated schematically with a cross in the drawing, in the axial direction on the plug-in axis 12 as a spacer or locking bushing .
  • the second intermediate roller 4 From the first position in which there is contact with the lower intermediate roller 3 and the first inking cylinder 8 Ink dampening separation in a second position in which the second intermediate roller 4 'as a rider (tandem roller) with roller separation of the intermediate rollers 3, 4, ie while lowering the first intermediate roller 3 together with the latter, it is laterally attached to the applicator roller 2 of the dampening unit.
  • An axial support of the pivot lever 9 'in the second position of the second intermediate roller 4' is achieved by coupling surfaces of two radial coupling parts 23, engage in the coupling surfaces of a wide web 24 'of the pivot lever 9' when the second intermediate roller 4 'lowered as a tandem roller on the Application roller 2 of the dampening unit is set to the side.
  • the pivot lever 9 In the area of the elongated hole 16, the pivot lever 9 has a narrow web 25 which is Y-thick, while the substantially wider web 24 which is connected in the direction of the upper intermediate roller 4 is X-thick.
  • the coupling parts 23 are pinned to the thru-axle 13 at a distance X from one another.
  • the pivot lever 9 slides about the center of the thru-axle 13 via the bushing 17 and the slot 16, when it is changed over, laterally to the applicator roller 2 between the coupling surfaces of the coupling parts 23 and is thus axially fixed exactly.
  • the two radial coupling parts 23 have a long section A and a short section B with respect to the center of the thru axle 13. If the second intermediate roller 4 is in the connecting position between the dampening unit and the inking unit, the Y-thick narrow web 25 comes Swivel lever 9 between the coupling parts 23 in its section B. If the second intermediate roller 4 is switched to the overreach (tandem) position 4 ', the X-thicker wider web 24 comes exactly between the long section A of the coupling parts 23.
  • the third intermediate roller 33 is received in a parking position between the side walls 32 of the printing press in the dampening unit and is only replaced when used in the bearing lever 11 for the converted second intermediate roller 4.
  • This further intermediate roller 33 is then designed without a pivot lever 9 on the thru axle 13, since it only needs to be removed from the roller lock 15 for parking in the dampening unit if no use is provided.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Rotary Presses (AREA)
  • Handcart (AREA)
  • Wet Developing In Electrophotography (AREA)

Claims (3)

  1. Dispositif sur des imprimantes offset pour déplacer le rouleau intermédiaire supérieur d'une paire de rouleaux intermédiaires reliant une unité d'encrage à une unité de mouillage, dont le premier rouleau intermédiaire est reçu, des deux côtés, par son axe, à l'extrémité d'un levier de palier pivotant autour du centre d'un premier rouleau de transfert d'encre, dans le sens de rotation du cylindre porte-plaque, de l'unité d'encrage,
    caractérisé en ce que, des deux côtés, l'axe (12) du second rouleau intermédiaire (4) est reçu, de façon mobile, au moyen d'une serrure à rouleaux (15) à l'extrémité d'à chaque fois un levier de palier (11) supporté de façon solidaire du bâti et axialement pivotant autour du centre du premier rouleau de transfert d'encre (8), en ce que, des deux côtés, sur l'axe (13) du premier rouleau intermédiaire (3), est articulé un levier pivotant (9) lequel reçoit de plus le second rouleau intermédiaire (4) au moyen d'une serrure à rouleaux (14), et en ce que le levier pivotant (9) présente des moyens (16,17) pour le guidage entre une première position, dans laquelle le second rouleau intermédiaire (4) est en contact avec le premier rouleau intermédiaire (3) et le premier rouleau de transfert d'encre (8), et une seconde position, dans laquelle le rouleau intermédiaire supérieur (4') abaissé par le premier rouleau intermédiaire (3) est amené latéralement contre le rouleau toucheur (2) de l'unité de mouillage, en même temps que le premier rouleau intermédiaire (3), en tant que rouleau tandem.
  2. Dispositif selon la revendication 1,
    caractérisé en ce que, pour guider le levier pivotant (9), un manchon coaxial (17) est prévu sur l'axe (13) du premier rouleau intermédiaire (3) et un trou oblong (16) est prévu dans le levier pivotant (9), la position du trou oblong (16) étant choisie de sorte que, lorsque les rouleaux intermédiaires (3,4) sont en contact, le trou oblong (16) se trouve sur la surface du manchon (17).
  3. Dispositif selon les revendications 1 et 2,
    caractérisé en ce que les serrures à rouleaux (14,15) sont formées par des emplacements de palier ouverts d'un côté comportant des fentes (18,19) dans les leviers (9,11), à travers lesquels des tronçons aplatis sur deux côtés (20,21) de l'axe (12) du second rouleau intermédiaire (4) peuvent être introduits et fixés par rotation de l'axe (12).
EP90100479A 1989-03-13 1990-01-11 Dispositif pour changer de position le deuxième rouleau (supérieur) d'une paire de rouleaux intermédiaires de raccordement entre les groupes d'encrage et de mouillage Expired - Lifetime EP0387485B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT90100479T ATE96088T1 (de) 1989-03-13 1990-01-11 Vorrichtung zum umstellen der zweiten (oberen) zwischenwalze eines ein farbwerk mit einem feuchtwerk verbindenden zwischenwalzenpaares.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3908043 1989-03-13
DE3908043A DE3908043C1 (fr) 1989-03-13 1989-03-13

Publications (3)

Publication Number Publication Date
EP0387485A2 EP0387485A2 (fr) 1990-09-19
EP0387485A3 EP0387485A3 (fr) 1991-03-27
EP0387485B1 true EP0387485B1 (fr) 1993-10-20

Family

ID=6376181

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90100479A Expired - Lifetime EP0387485B1 (fr) 1989-03-13 1990-01-11 Dispositif pour changer de position le deuxième rouleau (supérieur) d'une paire de rouleaux intermédiaires de raccordement entre les groupes d'encrage et de mouillage

Country Status (7)

Country Link
US (1) US5025724A (fr)
EP (1) EP0387485B1 (fr)
JP (1) JPH074932B2 (fr)
AT (1) ATE96088T1 (fr)
BR (1) BR9001153A (fr)
DE (2) DE3908043C1 (fr)
ES (1) ES2045572T3 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5318036A (en) * 1992-03-17 1994-06-07 Hewlett-Packard Company Method and apparatus for removing baseline wander from an ECG signal
DE19541418A1 (de) * 1995-11-07 1997-05-15 Heidelberger Druckmasch Ag Offsetdruckmaschine
DE29706932U1 (de) * 1997-04-17 1997-06-05 Roland Man Druckmasch Feuchtwerk für eine Offsetdruckmaschine
DE19719304C1 (de) * 1997-05-07 1998-11-12 Roland Man Druckmasch Lageranordnung für eine anstellbare Walze eines Farb- oder Feuchtwerks einer Druckmaschine
DE10352614A1 (de) * 2003-07-11 2005-02-10 Koenig & Bauer Ag Walze eines Farb- oder Feuchtwerkes

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1906056C3 (de) * 1968-02-23 1974-03-07 Adamovske Strojirny, N.P., Adamov (Tschechoslowakei) Vorrichtung zum An- und Abstellen der Auftragwalzen eines Feuchtwerks für eine Rotationsoffsetdruckmaschine
GB1207220A (en) * 1968-07-03 1970-09-30 Pfizer & Co C Paper coating and coated paper
US3911815A (en) * 1972-05-02 1975-10-14 Roland Offsetmaschf Mechanism for dampening the printing plate of an offset printing press
DE3146223C2 (de) * 1981-11-21 1985-03-21 Heidelberger Druckmaschinen Ag, 6900 Heidelberg Feucht-Farbwerk für Offsetdruckmaschinen
DE3637460A1 (de) * 1985-12-21 1987-07-02 Werner J Kotterer Druckplattenbefeuchtungsvorrichtung

Also Published As

Publication number Publication date
DE59003109D1 (de) 1993-11-25
DE3908043C1 (fr) 1990-04-26
ES2045572T3 (es) 1994-01-16
ATE96088T1 (de) 1993-11-15
JPH02274544A (ja) 1990-11-08
US5025724A (en) 1991-06-25
BR9001153A (pt) 1991-03-19
JPH074932B2 (ja) 1995-01-25
EP0387485A3 (fr) 1991-03-27
EP0387485A2 (fr) 1990-09-19

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