EP0387486B1 - Mécanisme d'entraînement pour le déplacement axial du premier ou bien du premier et du deuxième rouleau d'une paire de rouleaux réorientables dans des machines d'impression offset - Google Patents

Mécanisme d'entraînement pour le déplacement axial du premier ou bien du premier et du deuxième rouleau d'une paire de rouleaux réorientables dans des machines d'impression offset Download PDF

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Publication number
EP0387486B1
EP0387486B1 EP90100483A EP90100483A EP0387486B1 EP 0387486 B1 EP0387486 B1 EP 0387486B1 EP 90100483 A EP90100483 A EP 90100483A EP 90100483 A EP90100483 A EP 90100483A EP 0387486 B1 EP0387486 B1 EP 0387486B1
Authority
EP
European Patent Office
Prior art keywords
roller
lever
spindle
rollers
cylinder
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
EP90100483A
Other languages
German (de)
English (en)
Other versions
EP0387486A2 (fr
EP0387486A3 (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 AT90100483T priority Critical patent/ATE96091T1/de
Publication of EP0387486A2 publication Critical patent/EP0387486A2/fr
Publication of EP0387486A3 publication Critical patent/EP0387486A3/fr
Application granted granted Critical
Publication of EP0387486B1 publication Critical patent/EP0387486B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41FPRINTING MACHINES OR PRESSES
    • B41F31/00Inking arrangements or devices
    • B41F31/15Devices for moving vibrator-rollers
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S101/00Printing
    • Y10S101/38Means for axially reciprocating inking rollers

Definitions

  • the invention relates to a drive mechanism on offset printing machines for axially reciprocating the first or the first and second rollers of a pair of rollers of a combined dampening and inking unit.
  • the object of the invention is to make it possible that only the first roller works as a friction roller during the first adjustment of the two rollers as connecting rollers between the dampening and inking units, while in the second setting when the rollers on the applicator roller of the dampening unit laterally rest against each other, both rollers work as friction rollers and that the drive mechanism for the axial reciprocation can be derived from the ink rubbing cylinder in a stroke.
  • the advantage of the invention consists in an optimally effective rubbing performance in the nip points of the two rollers, depending on the setting.
  • the device comprises a plate cylinder 1 which is supported 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 drawn 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 and also of the inking unit rollers is known and will not be explained in more detail. All dampening unit rollers 2, 5, 6 and the rollers 3, 4 between dampening unit and inking unit can be adjusted to one another, this being done in a known manner e.g. by mounting the rollers on adjustable eccentric bushings, by arranging adjusting screws, by attaching springs or by mutually tightening the bearing levers of the rollers.
  • a first bearing lever 10 which can be pivoted about the center of the ink rubbing cylinder 8 and is supported axially, for example, on the side walls 32, is mounted on both sides.
  • first bearing lever 10 Inside next to the first bearing lever 10 is supported on both sides on the pin of the ink cylinder 8 also in the axial direction around its center pivoted second bearing lever 11 is mounted, which receives the thru axle 12 of the second roller 4 of the two rollers 3, 4 in a bearing position open on one side by means of a roller lock 15.
  • a section 21 of the thru axle 12 in the region of the bearing point serves as the roller lock 15, which is flattened with two edges and can be inserted into the bearing point through a slot 19.
  • a swivel lever 9 is articulated on both sides in the vicinity of the end faces of the first roller 3 on a coaxial section of the plug-in axis 13 of the first roller 3 on a bushing 17, which additionally has the upper roller 4 at the upper end in a bearing position open on one side by means of a roller lock 14 records.
  • 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.
  • Both slots 18, 19 and the flattened sections 20, 21 are angularly offset, so that the plug-in axis 12 remains locked in the pivot lever 9 when unlocking from the bearing lever 11, so that the second roller 4 is convertible and only in the changed position by rotating the Thru axis 12 '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.
  • a pin 29 with the thru-axle 12 is provided with the adjusting bore 30 between the levers 9 and 11 so that the axial position of the levers in the first position with connected inking and dampening units 10, 11 is firmly fixed relative to the side walls 32 of the printing press.
  • the roller lock 15 is opened by rotating the thru axle 12 by approximately 90 °, so that the second roller 4 is unlocked.
  • the swivel lever 9 has guide means 16, 17 in the form of the coaxial socket 17 on a portion of the thru-axle 13 and an elongated hole 16, the position of which is selected so that when rollers 3, 4 touch, the upper contact surface of the elongated hole 16 rests on the socket 17.
  • the bushing 17, as a spacer or securing bushing secures the inner rings of the rolling bearings of the first roller 3, which are schematically indicated with a cross in the drawing, in the axial direction on the thru axle 12. Accordingly, the rolling bearings of the second roller 4 are fixed in the axial direction by locking rings 22 .
  • the slot guide 16, 17 enables the second roller 4 to be moved by hand or, if appropriate, using suitable adjusting means (not shown in the drawing) from the first position, in contact with the roller 3 and the first inking cylinder for ink dampening switch to a second position, in which the second roller 4 'as a rider (tandem roller) with roller separation of the rollers 3, 4 lowered from the first roller 3 together with this side of the applicator roller 2 of the dampening unit.
  • the drive mechanism for axially reciprocating the first or the first and second rollers of the roller pair 3, 4 of a combined dampening and inking unit can be seen in FIGS. 3 to 6.
  • the first bearing lever 10 receives the thru axle 13 of the intermediate roller 3 on both sides in a bearing position open on one side by means of a roller lock 26 with a ball sleeve 34.
  • a roller 27 with an integrated spherical sleeve 34 serves as the roller lock 26, which can be inserted through the slot 13 carrying the roller 3 through a slot 28 into the bearing point of the first bearing lever 10 which is open on one side.
  • By turning the driver 27 is secured in the bearing.
  • the roller shell of the first roller 3 is rotatably received on the thru-axle 13 via roller bearings.
  • the swivel lever 9 has a narrow web 25 and a much wider web 24 in the direction of the second roller 4.
  • the narrow web 25 is Y-thick, while the wide web 24 is X-thick according to the drawing.
  • the coupling parts 23 have a long section A and a short section B with respect to the center of the thru axle 13, such that in the connecting position of the second roller 4 between the dampening and inking units, the narrow web 25 of the pivot lever 9 between the coupling parts 23 in the latter Section B comes to rest, and in the changed tandem roller position of the second roller 4 'on the applicator roller 2 of the dampening unit separated from the inking unit, the wide web 24 fits exactly between the coupling parts 23 in which section A comes to rest.
  • the first inking cylinder 8 is driven in the axial direction in a known manner via the drive tube 38, drive lever 40 and drive roller 39, which runs in the link 37.
  • the kinematic chain consisting of two distribution couplers 36, 47 consists of a pivotable roller lever 36 and an axially displaceable push rod 47.
  • the roller lever 36 slides in a wide slot 44 in the gearbox housing 41 of the dampening unit around a bolt 42.
  • the roller lever 36 has one end a driving roller 35, which is guided in the link 37 on the ink cylinder 8, while the other end of the pivotable roller lever 36 is pivotally supported by means of the bolt 42 on the gear housing 41 is.
  • a push rod 47 is articulated via a first driver connection 43, 45, 46, 48, which is guided in the direction of the plug-in axis 13 of the first roller 3 through the side walls 32 axially displaceably via ball sleeve 52 and via a second driver connection 49, 50 , 51 is articulated at the beginning of the thru axle 13.
  • the first driver connection 43, 45, 46, 48 has on the driver 43 a bolt-shaped part 46 which is rotatably mounted in the roller lever 36 and a prismatic part 48 which is slidably guided in a slot 45 of the push rod 47.
  • the second driver connection 49, 50, 51 has a prismatic part 51 on the second driver 49, which is slidably guided in a transverse slot 50 of the plug axis 13.
  • the distance b0 of the fulcrum of the bolt-shaped part 46 of the first driver 43 has been selected in the pivotable roller lever 36 to the fulcrum of the bolt 42 in accordance with the intended reduction gear ratio a0.
  • the difference in the thickness Y of the narrow web 25 from the thickness X of the wide web 24 of the pivot lever 9 is chosen to be somewhat smaller than twice the stroke a0 of the thru axle 13 of the first roller 3, while the distance between the coupling surfaces of the two coupling parts 23 corresponds to that Thickness X of the wide web 24 of the pivot lever 9 is selected.

Landscapes

  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Rotary Presses (AREA)
  • Friction Gearing (AREA)

Claims (3)

  1. Mécanisme d'entraînement pour des imprimantes offset, pour déplacer axialement en va-et-vient le premier ou le premier et le second rouleau d'une paire de rouleaux d'une unité d'encrage et de mouillage combinée, la paire de rouleaux pouvant être associée, au choix, dans le sens de rotation du cylindre porte-plaque, au premier rouleau de transfert d'encre et au dernier rouleau toucheur de l'unité de mouillage ou seulement au dernier rouleau toucheur de l'unité de mouillage, et le premier rouleau étant reçu, des deux côtés, par son axe, à l'extrémité d'à chaque fois un premier levier de palier supporté axialement de façon solidaire du bâti et pouvant pivoter autour du centre du premier rouleau de transfert d'encre et, de plus, le second rouleau étant reçu de façon mobile au moyen d'une serrure à rouleaux, des deux côtés, par son axe, à l'extrémité d'à chaque fois un second levier de palier supporté axialement de façon solidaire du bâti et pouvant pivoter autour du centre du premier rouleau de transfert d'encre et, des deux côtés, un levier pivotant étant articulé sur l'axe du premier rouleau, levier qui, au moyen d'une serrure à rouleaux, reçoit de plus le second rouleau et, dans le levier pivotant, des moyens de guidage étant prévus pour guider le second rouleau entre une première position dans laquelle le second rouleau est en contact avec le premier rouleau et le premier rouleau de transfert d'encre, et une seconde position dans laquelle le second rouleau, abaissé par le premier rouleau, est amené en même temps que celui-ci, en tant que rouleau tandem, latéralement contre le rouleau toucheur de l'unité de mouillage, et, des deux côtés, le premier levier de palier (10) recevant l'axe (13) du premier rouleau (3) dans une position de palier ouverte d'un côté au moyen d'une serrure à rouleaux (26) présentant une douille à billes (34), le levier pivotant (9) présentant une nervure étroite (25) et, en direction du second rouleau (4), une nervure (24) beaucoup plus large, et, dans la zone de pivotement du levier pivotant (9), deux pièces de couplage (23) étant fixées à l'axe (13) du premier rouleau (3) à un écartement X l'une de l'autre, lequel correspond à la taille de la nervure large (24) du levier pivotant (9), les pièces de couplage (23) présentant, relativement au centre de l'axe (13), un tronçon long (A) et un tronçon court (B), de sorte que, dans la position de liaison du rouleau (4) entre l'unité d'encrage et de mouillage, la nervure étroite (25) du levier pivotant (9) vient entre les pièces de couplage (23) dans leur tronçon (B), ainsi que, dans la position en tandem rajustée du second rouleau (4') sur le rouleau toucheur (2) de l'unité de mouillage, séparée de l'unité d'encrage, la nervure large (24) du levier pivotant (9) vient, en s'adaptant exactement, entre les pièces de couplage (23) dans leur tronçon (A), et un couplage de course de l'axe (13) du premier rouleau (3) avec le premier rouleau de transfert d'encre (8) étant prévu par l'intermédiaire d'une chaîne cinématique de deux bielles de distribution (36,47) démultipliant la course axiale du rouleau de transfert d'encre (8) sur une course prédéterminée (a₀) de l'axe (13) du premier rouleau (3).
  2. Mécanisme d'entraînement selon la revendication 1,
    caractérisé en ce qu'une chaîne cinématique de bielles de distribution (36,47) est prévue, laquelle est constituée d'un levier à rouleau pivotant (36) et d'une bielle axialement déplaçable (47), le levier à rouleau pivotant (36) présentant un galet d'entraînement (35) qui est guidé à une extrémité dans la coulisse (37) du rouleau de transfert d'encre (8), tandis que l'autre extrémité du levier à rouleau pivotant (36) est supportée de façon articulée sur le boîtier de transmission (41) de l'unité de mouillage au moyen de boulons (42), en ce que, sur le levier à rouleau pivotant (36), est de plus articulée une bielle (47) guidée par l'intermédiaire d'une douille à billes (52) et axialement déplaçable à travers la paroi latérale (32) en direction de l'axe (13) du premier rouleau (3), par l'intermédiaire d'une première liaison d'entraînement (43,45,46,48), bielle qui est articulée au début de l'axe (13) par l'intermédiaire d'une seconde liaison d'entraînement (49 à 51), et en ce que la distance (b₀) du pivot de la pièce (46) en forme de boulon du premier entraîneur (43) dans le levier à rouleau pivotant (36) par rapport au pivot du boulon (42) dans le boîtier de transmission (41) est choisie de façon correspondant à la démultiplication de course choisie (a₀).
  3. Mécanisme d'entraînement selon la revendication 1 ou 2,
    caractérisé en ce que la différence de l'épaisseur Y de la nervure étroite (25) par rapport à l'épaisseur X de la nervure large (24) du levier pivotant (9) est choisie de façon quelque plus petite que la course double (a₀) de l'axe (13) du premier rouleau (3).
EP90100483A 1989-03-13 1990-01-11 Mécanisme d'entraînement pour le déplacement axial du premier ou bien du premier et du deuxième rouleau d'une paire de rouleaux réorientables dans des machines d'impression offset Expired - Lifetime EP0387486B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT90100483T ATE96091T1 (de) 1989-03-13 1990-01-11 Antriebsmechanismus an offsetdruckmaschinen zum axialen hin- und herbewegen der ersten oder der ersten und zweiten walze eines umstellbaren walzenpaares.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3908044 1989-03-13
DE3908044A DE3908044C1 (fr) 1989-03-13 1989-03-13

Publications (3)

Publication Number Publication Date
EP0387486A2 EP0387486A2 (fr) 1990-09-19
EP0387486A3 EP0387486A3 (fr) 1991-03-27
EP0387486B1 true EP0387486B1 (fr) 1993-10-20

Family

ID=6376182

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90100483A Expired - Lifetime EP0387486B1 (fr) 1989-03-13 1990-01-11 Mécanisme d'entraînement pour le déplacement axial du premier ou bien du premier et du deuxième rouleau d'une paire de rouleaux réorientables dans des machines d'impression offset

Country Status (7)

Country Link
US (1) US5027704A (fr)
EP (1) EP0387486B1 (fr)
JP (1) JPH074934B2 (fr)
AT (1) ATE96091T1 (fr)
BR (1) BR9001152A (fr)
DE (2) DE3908044C1 (fr)
ES (1) ES2045573T3 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5179898A (en) * 1991-11-15 1993-01-19 Rockwell International Corporation Printer with roller mounting assembly
DE4442302B4 (de) * 1994-11-28 2004-05-27 Heidelberger Druckmaschinen Ag Vorrichtung zum axialen hin- und herbewegen von Reibwalzen im Farbwerk von Druckmaschinen
DE19505625C2 (de) * 1995-02-18 1996-12-12 Roland Man Druckmasch Zwangsantrieb für eine Farbwerkwalze in einer Druckmaschine
DE19529204C2 (de) * 1995-08-09 1997-08-14 Roland Man Druckmasch Feuchtwerk für eine Offsetdruckmaschine
DE19529205C2 (de) * 1995-08-09 1997-08-14 Roland Man Druckmasch Feuchtwerk für eine Offsetdruckmaschine
DE19840806C1 (de) * 1998-09-07 1999-11-11 Koenig & Bauer Ag Changierbare Walze
DE10044860B4 (de) * 1999-09-29 2008-04-30 Heidelberger Druckmaschinen Ag Antriebsvorrichtung für Druckmaschinen
JP5334365B2 (ja) * 2006-10-23 2013-11-06 株式会社ミヤコシ オフセット印刷機の湿し水装置
JP5058070B2 (ja) * 2008-05-21 2012-10-24 アキヤマインターナショナル株式会社 枚葉オフセット印刷機の給水装置
CN104245316B (zh) * 2012-04-24 2016-08-17 丹麦得利速股份公司 通过弯曲板调节辊子的上墨装置及其调节方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1160413B (it) * 1978-12-28 1987-03-11 Cigardi Omc Sa Dispositivo di bagnotura perfezionato, ad acqua ed a miscela acqua-alcool, applicabile su macchine da stampa offset
DD140227A1 (de) * 1979-01-15 1980-02-20 Hans Johne Verreibwalze in druckmaschinen
DE3028406C2 (de) * 1980-07-26 1983-09-15 Heidelberger Druckmaschinen Ag, 6900 Heidelberg Vorrichtung zum axialen Hin- und Herbewegen von Reibwalzen im Farbwerk von Druckmaschinen
DE3424721C2 (de) * 1984-07-05 1986-12-18 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Farbwerk für eine Druckmaschine

Also Published As

Publication number Publication date
DE59003110D1 (de) 1993-11-25
ES2045573T3 (es) 1994-01-16
ATE96091T1 (de) 1993-11-15
EP0387486A2 (fr) 1990-09-19
US5027704A (en) 1991-07-02
JPH02274543A (ja) 1990-11-08
BR9001152A (pt) 1991-03-19
DE3908044C1 (fr) 1990-05-17
EP0387486A3 (fr) 1991-03-27
JPH074934B2 (ja) 1995-01-25

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