EP0000329B1 - Antrieb mit Antriebsmitteln zum axialen Hin- und Herbewegen der Reibwalzen eines Farbwerkes - Google Patents

Antrieb mit Antriebsmitteln zum axialen Hin- und Herbewegen der Reibwalzen eines Farbwerkes Download PDF

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Publication number
EP0000329B1
EP0000329B1 EP78100107A EP78100107A EP0000329B1 EP 0000329 B1 EP0000329 B1 EP 0000329B1 EP 78100107 A EP78100107 A EP 78100107A EP 78100107 A EP78100107 A EP 78100107A EP 0000329 B1 EP0000329 B1 EP 0000329B1
Authority
EP
European Patent Office
Prior art keywords
roller
drive
rollers
plate cylinder
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
Application number
EP78100107A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0000329A1 (de
Inventor
Willi Jeschke
Werner Weber
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 EP0000329A1 publication Critical patent/EP0000329A1/de
Application granted granted Critical
Publication of EP0000329B1 publication Critical patent/EP0000329B1/de
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F31/00—Inking arrangements or devices
    • B41F31/15—Devices for moving vibrator-rollers
    • Y—GENERAL 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S101/00—Printing
    • Y10S101/38—Means for axially reciprocating inking rollers

Definitions

  • the invention relates to a drive with drive means for axially reciprocating the friction rollers of an inking unit, which in addition to the friction rollers other ink rollers, e.g. Has application rollers for inking the plate cylinder.
  • a grating device consists of a number of distribution rollers arranged in a distributed manner in the inking roller train, which are moved axially back and forth either via crank mechanisms, cam mechanisms, swash plates or pneumatic drives. The resulting axial movement usually has a sinusoidal speed profile.
  • the known rubbing devices are not sufficient to achieve a sufficient homogenization of the ink flow.
  • the invention is therefore based on the object of resolving unwanted or unwanted stripes of the coloring on the duct roller by improved rubbing.
  • the solution to the problem consists in the arrangement of further drive means which overlay the normal reciprocating movement of the friction rollers, the long stroke, with an additional oscillating movement in the axial direction, the short stroke.
  • the further drive means are designed such that the short stroke is carried out by the friction roller during one revolution and that the speed of rotation of the friction roller does not form an integer ratio to the speed of the plate cylinder.
  • the lifter which is usually driven at half speed in relation to the speed of the plate cylinder, always looks at another point on the friction roller, as seen in the axial direction, which has the consequence that color-free circumferential strips partially overlap with ink-carrying ones. This also speeds up the resolution of the strips.
  • the ink fountain 1 is assigned a duct roller 2, between which the ink 3 is filled in a wedge-shaped space.
  • the duct roller 2 can be driven at variable speed to control the overall coloring.
  • the ink 3 is fed from the doctor roller 2 via the lifting roller 4 to the friction roller 5. From there, the ink 3 passes through the inking roller train, consisting of rubber rollers 6, further friction rollers 7, 8 and 9, to the application rollers 10 and from there onto the plate of the plate cylinder 11.
  • the lifter roller 4 is swung back and forth at half speed in relation to the speed of the plate cylinder 11, i.e. with one revolution of the plate cylinder 11, the lifting roller 4 pivots from the duct roller 2 to the friction roller 5 and with the next revolution of the plate cylinder 11 from the distributor roller 5 back to the duct roller 2.
  • the ratio of the speed of the distributor roller 5 to the speed of the plate cylinder 11 is not integer. In the present embodiment, about 3.2 revolutions of the friction roller 5 correspond to one revolution of the plate cylinder 11.
  • the ink fountain is equipped with an ink metering device 12.
  • This ink metering device 12 consists of zone-wide adjusting elements 13 which arranged close to each other, extend across the width of the ink fountain 1.
  • the adjusting elements 13 are cylindrical and are arranged to be rotatable in the circumferential direction.
  • a spring 14 encompasses the adjusting elements 13 and presses them in the direction of the duct roller 2. Between the adjusting elements 13 and the outer surface of the duct roller 2, a thin elastic film 15 is provided.
  • the adjusting elements 13 Seen in the axial direction of the duct roller 2, the adjusting elements 13 have support ribs and puncture-like metering areas next to one another.
  • the support ribs are constantly on the film 15 and thus on the duct roller 2. Since each control element 13 has at least two support ribs, two color-free, circumferential strips are produced in the area of a control zone on the lateral surface of the duct roller 2, which the lifting roller 4, like the other ink strips, passes on to the friction roller 5 in accordance with the zonal ink setting.
  • the rubbing roller 5 not only carries out a usual reciprocating movement, the so-called long stroke, but also moves in accordance with a superimposed, short-stroke oscillating, i.e. back and forth motion.
  • the design of the drive of the friction roller 5 is shown in detail in Figure 2.
  • the axle journal 16 of the friction roller 5 is rotatably and axially displaceably mounted in the drive-side machine side wall 17 via a slide bearing 18.
  • a grooved ring 19 which has a groove 20 in which a driving roller 21 of a double lever 22 is guided.
  • the groove 20 has an incline according to which the friction roller 5 is moved back and forth in one revolution.
  • the slope corresponds to the short stroke 23. In the present case, the slope is 4 mm.
  • the axle journal 24 of the further friction roller 7 is likewise rotatably and axially displaceably mounted in a slide bearing 18 in the machine side wall 17.
  • a driver ring 25 At its free end there is a driver ring 25 with a guide groove 26 which has no slope in the direction of the journal 24.
  • the double lever 22 is pivotally arranged in a bearing 28 which is fastened to the machine side wall 17. With the double lever 22, a crank arm 29 is connected, to which a crank 30 engages, which is articulated eccentrically on the hub 31 of a crank gear 32.
  • FIG. 2 shows the double jack 22 in the central position
  • the part of the crank 30 articulated on the crank gear 32 is shown in the top dead center position.
  • the crank gear 32 is rotatably supported via its hub 31 and a ball bearing 33 in a housing 34 and on its other side by means of an axle pin 35 in a ball bearing 36 which is located in a recess 37 in the machine side wall 17.
  • the crank gear 32 is set in rotation by means of further drive means, not shown, from the plate cylinder.
  • the eccentric articulation of the crank 30 to the hub 31 of the crank gear 32 is such that the double lever 22 is made to oscillate, whereby the friction roller 5 is pulled, for example, in the direction of the machine side wall 17, with the friction roller 7 simultaneously moving in the opposite direction .
  • the stroke of the friction roller 7, hereinafter referred to as the long stroke 38, is 35 mm in the present case.
  • the double lever 22 performs a reciprocating pendulum movement.
  • the friction roller 7 thus executes the long stroke 38, while the friction roller 5, which is additionally reciprocated according to the short stroke 23 at each of its revolutions, runs through a total stroke 39, which in the present case is 35 mm plus a short stroke of 4 mm, is 39 mm.
  • FIG. 3a The speed diagram of the short stroke 23 of the friction roller 5 in relation to the rotation u of the plate cylinder 11 is shown in FIG. 3a.
  • the grooved ring 19 causes a back and forth movement of slightly more than 3 times due to the speed ratio of the friction roller to the plate cylinder 11 of approximately 3.2.
  • FIG. 3b shows the speed curve of the long stroke 38 of the friction roller 7.
  • the long stroke 38 is covered once in one plate cylinder revolution.
  • the friction roller 5 is moved back and forth one time by the crank 30 at two plate cylinder revolutions and, because of the grooved ring 19, it simultaneously executes about 6.4 times the short stroke movement, a superimposed sinusoidal movement occurs, as shown in FIG. 3c .
  • This course of speed has proven to be extremely effective for the rubbing of the above-mentioned color-free, circumferential strips.
  • the effect of this superimposed rubbing movement can be further promoted by firstly, as in the present example, having the rubbing roller 5 located in the front of the inking roller train perform the superimposed movement, the short stroke 23 being carried out by the rubbing roller 5 during one revolution of the rubbing roller 5, and that, secondly, the speed ratio of the friction roller 5 to the plate cylinder 11 is not an integer, so that the lifting roller 4 swiveling back and forth at half speed always meets the friction roller 5 at a different location than immediately before. This causes an overlap of color-guiding and color-free stripes from the outset.
  • the axes can also be journal of the remaining friction rollers 7, 8 and 9 are provided with a grooved ring 19 with an axial pitch, so that these friction rollers also perform a superimposed movement.
  • the invention is not restricted to inking units of the type shown in FIG. 1. Even in the usual inking units with ink knife and zone screws, the additional movement according to the invention can be of great use if the coloring on the ink fountain is not set sufficiently uniformly. In this case, too, it has been shown that homogenizing the color flow with the aid of the superimposed movement visibly improves the printing result.

Landscapes

  • Inking, Control Or Cleaning Of Printing Machines (AREA)
EP78100107A 1977-07-09 1978-06-06 Antrieb mit Antriebsmitteln zum axialen Hin- und Herbewegen der Reibwalzen eines Farbwerkes Expired EP0000329B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2731124 1977-07-09
DE2731124A DE2731124C2 (de) 1977-07-09 1977-07-09 Antrieb zum axialen Hin- und Herbewegen der Reibwalzen eines mehrere Walzen aufweisenden Farbwerkes

Publications (2)

Publication Number Publication Date
EP0000329A1 EP0000329A1 (de) 1979-01-24
EP0000329B1 true EP0000329B1 (de) 1980-05-28

Family

ID=6013567

Family Applications (1)

Application Number Title Priority Date Filing Date
EP78100107A Expired EP0000329B1 (de) 1977-07-09 1978-06-06 Antrieb mit Antriebsmitteln zum axialen Hin- und Herbewegen der Reibwalzen eines Farbwerkes

Country Status (9)

Country Link
US (1) US4838163A (it)
EP (1) EP0000329B1 (it)
JP (1) JPS5418312A (it)
AT (1) AT364379B (it)
AU (1) AU517203B2 (it)
CA (1) CA1105772A (it)
DE (1) DE2731124C2 (it)
ES (1) ES471368A1 (it)
IT (1) IT1159870B (it)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56156644U (it) * 1980-04-22 1981-11-21
DE3034644C2 (de) * 1980-09-13 1982-10-07 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Farbwerk mit changierenden Farbauftragswalzen
US4398463A (en) * 1981-08-19 1983-08-16 Motter Printing Press Co. Non-repeat doctor blade drive
DE3434647C2 (de) * 1984-09-21 1986-07-31 Heidelberger Druckmaschinen Ag, 6900 Heidelberg Farbwerk für Rotationsdruckmaschinen
DE8508952U1 (de) * 1985-03-26 1985-06-27 Albert-Frankenthal Ag, 6710 Frankenthal Antriebsvorrichtung für ein changierendes Arbeitsorgan einer Druckmaschine
DE4140048C2 (de) * 1991-12-05 1995-09-21 Roland Man Druckmasch Farbwerk einer Druckmaschine, insbesondere Bogenoffsetdruckmaschine
US5363763A (en) * 1993-09-13 1994-11-15 Fury, Ltd. Inker mechanism
DE29812966U1 (de) 1998-07-21 1998-09-24 MAN Roland Druckmaschinen AG, 63075 Offenbach Farbwerk für eine Offsetdruckmaschine
US6796228B2 (en) 2002-12-27 2004-09-28 Day International, Inc. Dampener metering device
GB2398272B (en) * 2003-02-17 2006-03-22 Goss Graphic Systems Ltd Inking unit
SE524817C2 (sv) * 2003-02-17 2004-10-05 Scandrive Control Ab Anordning för att påföra oscillerande axialrörelser på en roterbar vals
DE102005014060B4 (de) * 2005-03-23 2008-11-20 Koenig & Bauer Aktiengesellschaft Farbwerk einer Druckmaschine
JP2007309508A (ja) * 2006-04-20 2007-11-29 Kinyosha Co Ltd 揺動ローラー、転がり軸受、ローラーの揺動方法
DE102007000554B4 (de) * 2007-10-23 2010-02-11 Koenig & Bauer Aktiengesellschaft Changierantrieb
CO6530149A1 (es) * 2011-03-28 2012-09-28 Sur Occidental De Aceites Biocompuesto ceramico para regeneracion osea

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3118373A (en) * 1964-01-21 mosemiller
DE242992C (it) *
US1376982A (en) * 1917-06-18 1921-05-03 Goss Printing Press Co Ltd Printing-press inking mechanism
CH395145A (de) * 1962-05-18 1965-07-15 Planeta Veb Druckmasch Werke Vorrichtung zum axialen Hin- und Herbewegen der Verreibewalzen und zum Antrieb des Farbhebers und des Farbduktors von Farbwerken in Druckmaschinen, insbesondere Offsetdruckmaschinen

Also Published As

Publication number Publication date
US4838163A (en) 1989-06-13
AU517203B2 (en) 1981-07-16
EP0000329A1 (de) 1979-01-24
DE2731124B1 (de) 1979-03-22
DE2731124A1 (de) 1979-01-11
AT364379B (de) 1981-10-12
IT1159870B (it) 1987-03-04
ATA449778A (de) 1981-03-15
JPS5545389B2 (it) 1980-11-18
IT7868543A0 (it) 1978-06-30
CA1105772A (en) 1981-07-28
ES471368A1 (es) 1979-02-01
DE2731124C2 (de) 1979-11-15
AU3701578A (en) 1979-12-20
JPS5418312A (en) 1979-02-10

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