EP0730956B1 - Heberfarbwerk für eine Druckmaschine - Google Patents
Heberfarbwerk für eine Druckmaschine Download PDFInfo
- Publication number
- EP0730956B1 EP0730956B1 EP96102046A EP96102046A EP0730956B1 EP 0730956 B1 EP0730956 B1 EP 0730956B1 EP 96102046 A EP96102046 A EP 96102046A EP 96102046 A EP96102046 A EP 96102046A EP 0730956 B1 EP0730956 B1 EP 0730956B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- roller
- ductor
- shaft
- ink
- 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
Links
- 238000007639 printing Methods 0.000 title claims description 9
- 230000008878 coupling Effects 0.000 abstract 1
- 238000010168 coupling process Methods 0.000 abstract 1
- 238000005859 coupling reaction Methods 0.000 abstract 1
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000007645 offset printing Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F31/00—Inking arrangements or devices
- B41F31/02—Ducts, containers, supply or metering devices
- B41F31/14—Applications of messenger or other moving transfer rollers
Definitions
- the invention relates to a lifter inking unit for a printing press for transferring Color according to the preamble of the main claim.
- a lifter inking unit of this type is known from DE 3 836 580 C2.
- On a jack shaft two fork-shaped levers are fixed on both sides.
- Each fork-shaped lever is one Neighboring rocker arm, which is rotatably mounted on the jack shaft and the front Rolling pin storage of the inking roller takes up.
- Each rocker arm is non-positive connected with a fork-shaped lever.
- the lifting roller receives one-sided via Control cam and cam roller initiated the swivel drive.
- a disadvantage of these designs is that the color transfer between neighboring ones Ink rollers do not occur evenly because of the one-sided introduction of the drive torques the levers receiving the inking roller different torsional moments exhibit.
- the lever on the drive side has a lower torsional moment than the lever (including the length of the jack shaft) on the one removed from the drive side Roll holder.
- the result is that the inking roller during the ink removal from the in the inking unit roller upstream and in the ink transfer to the downstream, for example, rubbing ink roller at different machine speeds has no defined contact conditions for the roller strip (lifting strip).
- These torsional moments increase with larger printing formats (longer axial roller length) and higher machine speeds.
- the object of the invention is to develop a solution, the defined investment conditions the ink lifter roller allowed on the adjacent rollers of the inking unit, so that a Uniform ink transfer from the ink fountain roller to the downstream ink roller Inking roller, e.g. an ink roller, at different machine speeds is guaranteed.
- this is achieved in that the drive torque introduced on one side in the middle of a jack shaft via a forked tube concentrically arranged on it Control lever is transmitted.
- the jack shaft and the carrier tube are in the Area of the machine center positively coupled with each other. It will be the same size Transfer drive torque to the control levers.
- the oscillating inking roller always lies parallel to the adjacent inking rollers in the end positions. So that will a uniform ink transfer from the ink fountain roller to the ink fountain roller downstream inking roller guaranteed. This is the color guide in the inking roller Improved at an early stage and the color transfer noticeably more reproducible.
- An inking unit 1 is in a printing unit in a known manner in an offset printing press arranged for inking a printing form of a plate cylinder 3.
- the plate cylinder 3 is assigned a dampening unit 2 in a known manner and the plate cylinder 3 is a Blanket cylinder 4 adjacent.
- the inking unit 1 consists of an ink fountain 5 with Dosing agent to which an ink fountain roller 6 is assigned.
- a swinging ink roller 7 is the ink fountain roller 6 and an inking roller 8 arranged downstream in the inking unit 1 adjacent.
- the inking unit roller 8 is arranged downstream of an inking unit roller train 9, which Plate cylinder 3 is assigned.
- the inking roller 7 is on both sides with its roll neck stored in a roller lever 10 each.
- Each roller lever 10 is in an adjacent, fork-shaped control lever 11 non-positively coupled. Is parallel to the inking roller 7 a jack shaft 12 is arranged, which is rotatable on both sides in a machine frame 13 in a bearing 16 is added.
- the jack shaft 12 has a one-sided introduction Swivel drive on that of a control cam 14 and a roller lever 15 on the jack shaft 12 takes place.
- Roller lever 15 is spring-loaded by one on each control lever 11 frame-fixed compression spring 22 performs the role of the roller lever 15 on the control cam 14.
- On the lifting shaft 12 is a support tube 17 concentric between the machine frames 13 arranged as a hollow shaft, rotatably received in bearings 18.
- the support tube 17 is with a positive connection 20, e.g. one of the parts 17 and 12 penetrating Bolt fixed on the jack shaft 12.
- On the support tube 17 are form-fitting means Keys 19, the control lever 11 fixed in position.
- the adjacent roller levers 10 are in Bearings 21
- the mode of action is as follows:
- the ink required for printing is filled in the ink fountain 5 and is metered via the ink fountain roller 6, the oscillating inking roller 7 and the inking roller 8 via the inking unit 1 to the plate cylinder 3 with a corresponding printing form.
- the jack shaft 12 receives its drive torque from the control cam 14 via the roller lever 15.
- the drive torque the jack shaft 12 is in an area of the machine center 23 on the transfer positive connection 20 to the support tube 17.
- the solution according to the invention is not limited to the exemplary embodiment. Rather, this is only one possible embodiment. So it is also possible on the lifting shaft 12 a in the middle 23 in the form of two mounted on the lifting shaft 12, To arrange sleeves divided support tube. The sleeves of the carrier tube are aligned and each The sleeve has a positive connection 20 between in the region of the middle 23 Carrier tube and jack shaft 12. The torque split remains unchanged.
Landscapes
- Inking, Control Or Cleaning Of Printing Machines (AREA)
- Ink Jet (AREA)
Description
- Fig. 1
- ein Druckwerk einer Offsetdruckmaschine in Seitenansicht,
- Fig. 2
- ein Heberfarbwerk in Seitenansicht,
- Fig. 3
- ein Heberfarbwerk in Draufsicht.
- 1
- Farbwerk
- 2
- Feuchtwerk
- 3
- Plattenzylinder
- 4
- Gummituchzylinder
- 5
- Farbkasten
- 6
- Farbkastenwalze
- 7
- Farbheberwalze
- 8
- Farbwerkswalze
- 9
- Farbwerkswalzenzug
- 10
- Walzenhebel
- 11
- Steuerhebel
- 12
- Heberwelle
- 13
- Maschinengestell
- 14
- Steuerkurve
- 15
- Rollenhebel
- 16
- Lager
- 17
- Trägerrohr
- 18
- Lager
- 19
- Passfeder
- 20
- formschlüssige Verbindung
- 21
- Lager
- 22
- Druckfeder
- 23
- Maschinenmitte
Claims (3)
- Heberfarbwerk für eine Druckmaschine mit einer zwischen einer Farbkastenwalze und einer nachgeordneten Farbwerkswalze pendelnden Farbheberwalze, die in Hebeln gelagert ist und von einer einseitig kurvengesteuert angetriebenen Heberwelle verschwenkt wird,
dadurch gekennzeichnet,
daß auf der gestellfest gelagerten Heberwelle (12) zwischen den Maschinengestellen (13) in Lagern (18) konzentrisch ein Trägerrohr (17) angeordnet ist, das im Bereich der Maschinenmitte (23) mindestens eine formschlüssige Verbindung (20) mit der Heberwelle (12) aufweist, wobei die die Farbheberwalze (7) aufnehmenden Hebel (10, 11) auf dem Trägerrohr (17) angeordnet sind. - Heberfarbwerk nach Anspruch 1,
dadurch gekennzeichnet,
daß das Trägerrohr (17) aus zwei in Lagern (18) konzentrisch auf der Heberwelle (12) angeordneten Hülsen gebildet ist, wobei jede Hülse im Bereich der Maschinenmitte (23) mindestens eine formschlüssige Verbindung (20) mit der Heberwelle (12) aufweist. - Heberfarbwerk nach Anspruch 1,
dadurch gekennzeichnet,
daß auf dem Trägerrohr (17) beidseitig formschlüssig je ein gabelförmiger Steuerhebel (11) angeordnet ist, der mit je einem auf dem Trägerrohr (17) drehbar gelagerten, die Farbheberwalze (7) aufnehmenden Walzenhebel (10) kraftschlüssig gekoppelt ist.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19507903A DE19507903C1 (de) | 1995-03-07 | 1995-03-07 | Heberantrieb für eine Druckmaschine |
| DE19507903 | 1995-03-07 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0730956A2 EP0730956A2 (de) | 1996-09-11 |
| EP0730956A3 EP0730956A3 (de) | 1997-01-29 |
| EP0730956B1 true EP0730956B1 (de) | 1998-04-22 |
Family
ID=7755834
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP96102046A Expired - Lifetime EP0730956B1 (de) | 1995-03-07 | 1996-02-13 | Heberfarbwerk für eine Druckmaschine |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0730956B1 (de) |
| AT (1) | ATE165277T1 (de) |
| DE (2) | DE19507903C1 (de) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3836580A1 (de) * | 1988-10-27 | 1990-05-03 | Roland Man Druckmasch | Heberwalzensteuerung an farbwerken von druckmaschinen |
| DE4141127C2 (de) * | 1991-12-13 | 2003-01-16 | Koenig & Bauer Ag | Farbheberantrieb für Druckmaschinen |
-
1995
- 1995-03-07 DE DE19507903A patent/DE19507903C1/de not_active Expired - Fee Related
-
1996
- 1996-02-13 AT AT96102046T patent/ATE165277T1/de not_active IP Right Cessation
- 1996-02-13 EP EP96102046A patent/EP0730956B1/de not_active Expired - Lifetime
- 1996-02-13 DE DE59600160T patent/DE59600160D1/de not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| DE59600160D1 (de) | 1998-05-28 |
| DE19507903C1 (de) | 1996-07-04 |
| EP0730956A2 (de) | 1996-09-11 |
| EP0730956A3 (de) | 1997-01-29 |
| ATE165277T1 (de) | 1998-05-15 |
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