EP0822897B1 - Doctor device for the inking system of a rotary printing press - Google Patents
Doctor device for the inking system of a rotary printing press Download PDFInfo
- Publication number
- EP0822897B1 EP0822897B1 EP96914136A EP96914136A EP0822897B1 EP 0822897 B1 EP0822897 B1 EP 0822897B1 EP 96914136 A EP96914136 A EP 96914136A EP 96914136 A EP96914136 A EP 96914136A EP 0822897 B1 EP0822897 B1 EP 0822897B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- doctor
- doctor device
- intermediate walls
- 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
- 238000007599 discharging Methods 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 2
- 210000002105 tongue Anatomy 0.000 claims description 2
- 238000013022 venting Methods 0.000 claims 2
- 239000006223 plastic coating Substances 0.000 claims 1
- 238000005192 partition Methods 0.000 description 18
- 238000007774 anilox coating Methods 0.000 description 11
- 239000003973 paint Substances 0.000 description 11
- 239000000565 sealant Substances 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 239000002904 solvent Substances 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
- B41F31/027—Ink rail devices for inking ink rollers
-
- 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
Definitions
- the invention relates to a doctor blade device for a rinse inking unit a rotary printing press consisting of a through a profile strip formed with a groove-shaped recess Doctor knife carrier, on the approximately roof-shaped and parallel two mutually adjustable on an inking or anilox roller Doctor blades are attached, which together with the inking roller, the channel-shaped recess of the doctor blade carrier and at the end of this provided sealing means delimit an ink chamber from lines for feeding and discharging of paint into and out of the paint chamber, and from adjusting devices for pressing the doctor blade holder onto the Inking roller.
- the object of the invention is therefore a doctor blade device to create the type specified, in which the ends a good sealant provided on the doctor blade carrier Ensure that the ink chamber is sealed against leaking paint.
- this object is achieved with a doctor device of the generic type solved in that the trough-shaped Recess with a middle, preferably up to End portions extending middle part forming a main chamber and end-side side panels forming side chambers which is connected to the main chamber by throttling gaps are that in the main chamber the paint supply line opens and that the side parts with the color-dissipating Connected lines and provided with ventilation holes are.
- the doctor device can be by Introducing the paint into the main chamber of the paint chamber the desired one Maintain overpressure in color. From the The color enters the main chamber through the throttle column unpressurized secondary chambers, so that the end of the doctor blade carrier provided seals the ink chamber laterally are able to seal well, since the seals do not pass underneath Pressurized color can be applied.
- the main chamber and the secondary chambers are expedient by radial partitions of the groove-shaped recess from each other separated, the edges of which are curved in the shape of a circular arc limit the throttle gap with the anilox roller.
- the partitions can be formed by rib-like elevations. Farther can the partition walls by curved wall parts pass into the main chamber. Conveniently, the outer sides of the partition walls on radial planes.
- each of the partitions with a coating is made of plastic covering the edges of the partitions dominates and thus the squeegee throttle gap limited.
- the secondary chambers can be in the longitudinal section of the doctor blade carrier have an L-shaped cross section. Expediently extends one each by an L-leg of the secondary chambers formed space up to the main chamber.
- doctor blades are subject to unavoidable wear, so that with their increasing wear the radial partitions with its arcuate curved and the choke column bordering edges approximate to the anilox roller and the width of the throttle gap undesirably decreases.
- the essentially impassable connection of the partitions with the inking unit frame carrying the squeegee device be accomplished by different means.
- the partitions through resilient tongues or webs with the profile strip are connected so that they correspond to the progressive Dodge wear of the doctor blades to the rear can.
- the partitions can each have rods on one stop the inking box be supported.
- the rods can pass through special holes or openings be led out of the profile bar. However, it is useful the rods through the ventilation holes from the profile strip lead out, which are present anyway, so that no special openings or openings for the rods must be provided.
- the stop is expedient by an actuating device adjustable, so that there is also the possibility adjust the width of the throttle gap.
- the inking unit 1 which is movable in the usual way on the pressure cylinder block, which is also designed as a slide is stored in the usual and therefore not described in detail
- One side of the anilox roller 2 stored.
- the inking unit 1 On the inking unit 1 are the parallel links around the hinge axes 3, 4 5, 6 pivotally mounted. The upper ends of the parallel link 5, 6 are pivotable about the joint axes 7, 8 connected to the support 9 forming a coupling.
- the carrier 9 is integrally formed with the doctor blade 10.
- the squeegee 10 is by screws provided with handwheels 11 with the doctor blade carrier connected.
- the piston rod 12 of a pneumatic cylinder 13 articulated, which in turn via a support piece 14 articulated by the joint 15 to the inking unit 1 is.
- the hinge axes 4 of the parallel link 6 are with an eccentric adjustment 4 'provided, due to which the pivot axis the parallel link 6 can be raised and lowered.
- the parallel link 5, 6 each of the two anilox roller 2 storing Inking units can double to increase stability be executed.
- the doctor blade carrier 11 consists of a profile strip, the 1 can be seen.
- the bar of the doctor blade holder 11 is with a forming the interior of the ink chamber Channel 20 provided. This channel flows into the lower middle
- the area, as can be seen from FIG. 3, is the printing ink feeding bore 21.
- the end faces 26, 27 of the gutter edges are roof-shaped in opposite directions beveled. On these end faces 26, 27 are through Clamping brackets 28, 29 the doctor blades 30, 31 in the usual and therefore attached not described in more detail.
- Seals 33, 34 are on the sides of the doctor blade carrier 11 arranged, the ink chamber interior 20 opposite the anilox roller 2 seal. To hold these seals are with the side end faces of the bar of the doctor blade holder Screwed lid 35, 36.
- the interior of the ink chamber is cross-sectionally on its sides provided approximately L-shaped chambers 38, 39. These chambers are from the middle part of the interior of the ink chamber through intermediate walls 40, 41 divided, against the anilox roller 2 bounding edges delimiting circularly curved gaps 42, 43. Starting from the edges 42, 43 are curved wall parts 44, 45 in the central main part of the interior of the ink chamber about.
- the side chambers 38, 39 are through the throttling gaps 42, 43 connected to the central part of the interior of the ink chamber.
- the wall parts 40, 41 thus form, as it were, weirs, through which in the middle part of the interior of the ink chamber the feed hole 21 introduced paint under pressure reduction enters the unpressurized lateral chambers 38, 39.
- open vent holes 24, 25 into these To ensure the depressurization of the chambers 38, 39, open vent holes 24, 25 into these.
- the outer sides of the walls 40, 41 are covered with coverings 48, 49 made of plastic, which limit the gaps 42, 43 Slightly protrude edges so that there is a metallic contact the edges with the anilox roller 2 are excluded.
Landscapes
- Inking, Control Or Cleaning Of Printing Machines (AREA)
- Paper (AREA)
- Coloring (AREA)
- Screen Printers (AREA)
Description
Die Erfindung betrifft eine Rakelvorrichtung für ein Spülfarbwerk einer Rotationsdruckmaschine, bestehend aus einem durch eine Profilleiste mit einer rinnenförmigen Ausnehmung gebildeten Rakelmesserträger, auf den etwa dachförmig und parallel zueinander zwei an eine Farbauftrags- oder Rasterwalze anstellbare Rakelmesser befestigt sind, die zusammen mit der Farbauftragswalze, der rinnenförmigen Ausnehmung des Rakelmesserträgers und endseitig an diesem vorgesehenen Dichtungsmitteln eine Farbkammer begrenzen, aus Leitungen zum Zu- und Abführen von Farbe in die Farbkammer und aus ihr heraus, und aus Anstelleinrichtungen zum Andrucken des Rakelmesserträgers an die Farbauftragswalze.The invention relates to a doctor blade device for a rinse inking unit a rotary printing press consisting of a through a profile strip formed with a groove-shaped recess Doctor knife carrier, on the approximately roof-shaped and parallel two mutually adjustable on an inking or anilox roller Doctor blades are attached, which together with the inking roller, the channel-shaped recess of the doctor blade carrier and at the end of this provided sealing means delimit an ink chamber from lines for feeding and discharging of paint into and out of the paint chamber, and from adjusting devices for pressing the doctor blade holder onto the Inking roller.
Bei beispielsweise aus den DE-40 01 733 A1 und DE-40 01 734 A1 bekannten Rakelvorrichtungen dieser Art besteht das Problem, daß einerseits die in die Farbkammer eingeleitete Farbe unter eine gewissen Druck stehen soll und andererseits die seitlichen Dichtungsmittel ein Austreten von Farbe aus der Farbkammer verhindern sollen, damit die Rakelvorrichtung nicht durch austretende Farbe verschmutzt wird und keine Lösemittel aus der Farbe verdunsten können.For example from DE-40 01 733 A1 and DE-40 01 734 A1 Known squeegee devices of this type have the problem that on the one hand the color introduced into the ink chamber a certain pressure should stand and on the other hand the side Sealant is an escape of paint from the paint chamber should prevent so that the doctor device not through escaping paint is contaminated and no solvents the paint can evaporate.
Aufgabe der Erfindung ist es daher, eine Rakelvorrichtung der eingangs angegebenen Art zu schaffen, bei der die endseitig an dem Rakelmesserträger vorgesehenen Dichtungsmittel eine gute Dichtigkeit der Farbkammer gegen austretende Farbe gewährleisten.The object of the invention is therefore a doctor blade device to create the type specified, in which the ends a good sealant provided on the doctor blade carrier Ensure that the ink chamber is sealed against leaking paint.
Erfindungsgemäß wird diese Aufgabe bei einer Rakelvorrichtung der gattungsgemäßen Art dadurch gelöst, daß die rinnenförmige Ausnehmung mit einem mittleren, sich vorzugsweise bis in deren Endbereiche erstreckenden, eine Hauptkammer bildenden Mittelteil und endseitigen, Nebenkammern bildenden Seitenteilen versehen ist, die mit der Hauptkammer durch Drosselspalte verbunden sind, daß in die Hauptkammer die die Farbe zuführende Leitung mündet und daß die Seitenteile mit den die Farbe abführenden Leitungen verbunden und mit Entlüftungsbohrungen versehen sind.According to the invention, this object is achieved with a doctor device of the generic type solved in that the trough-shaped Recess with a middle, preferably up to End portions extending middle part forming a main chamber and end-side side panels forming side chambers which is connected to the main chamber by throttling gaps are that in the main chamber the paint supply line opens and that the side parts with the color-dissipating Connected lines and provided with ventilation holes are.
Bei der erfindungsgemäßen Rakelvorrichtung läßt sich durch die Einleitung der Farbe in die Hauptkammer der Farbkammer der gewünschte Überdruck in der Farbe aufrechterhalten. Aus der Hauptkammer tritt die Farbe durch die Drosselspalte in die drucklosen Nebenkammern ein, so daß die endseitig an dem Rakelmesserträger vorgesehenen Dichtungen die Farbkammer seitlich gut abzudichten vermögen, da die Dichtungen nicht durch unter Druck stehende Farbe beaufschlagt werden.In the doctor device according to the invention can be by Introducing the paint into the main chamber of the paint chamber the desired one Maintain overpressure in color. From the The color enters the main chamber through the throttle column unpressurized secondary chambers, so that the end of the doctor blade carrier provided seals the ink chamber laterally are able to seal well, since the seals do not pass underneath Pressurized color can be applied.
Zweckmäßigerweise sind die Hauptkammer und die Nebenkammern durch radiale Zwischenwände der rinnenförmigen Ausnehmung voneinander getrennt, deren kreisbogenförmig gekrümmten Kanten mit der Rasterwalze die Drosselspalte begrenzen. Die Zwischenwände können durch rippenartige Erhöhungen gebildet sein. Weiterhin können die Zwischenwände durch gekrümmte Wandungsteile in die Hauptkammer übergehen. Zweckmäßigerweise liegen die äußeren Seiten der Zwischenwände auf radialen Ebenen. The main chamber and the secondary chambers are expedient by radial partitions of the groove-shaped recess from each other separated, the edges of which are curved in the shape of a circular arc limit the throttle gap with the anilox roller. The partitions can be formed by rib-like elevations. Farther can the partition walls by curved wall parts pass into the main chamber. Conveniently, the outer sides of the partition walls on radial planes.
In weiterer Ausgestaltung der Erfindung ist vorgesehen, daß mindestens eine Seite jeder der Zwischenwände mit einer Beschichtung aus Kunststoff versehen ist, die die Kanten der Zwischenwände überragt und somit die rakelseitigen Drosselspalte begrenzt.In a further embodiment of the invention it is provided that at least one side of each of the partitions with a coating is made of plastic covering the edges of the partitions dominates and thus the squeegee throttle gap limited.
Die Nebenkammern können im Längsschnitt des Rakelmesserträgers einen L-förmigen Querschnitt besitzen. Zweckmäßigerweise erstreckt sich jeweils ein durch einen L-Schenkel der Nebenkammern gebildeter Raum bis unter die Hauptkammer.The secondary chambers can be in the longitudinal section of the doctor blade carrier have an L-shaped cross section. Expediently extends one each by an L-leg of the secondary chambers formed space up to the main chamber.
Die Rakelmesser unterliegen einem unvermeidbaren Verschleiß, so daß sich mit deren zunehmender Abnutzung die radialen Zwischenwände mit ihren kreisbogenförmig gekrümmten und die Drosselspalte begrenzenden Kanten an die Rasterwalze annähern und die Breite der Drosselspalte in unerwünschter weise abnimmt.The doctor blades are subject to unavoidable wear, so that with their increasing wear the radial partitions with its arcuate curved and the choke column bordering edges approximate to the anilox roller and the width of the throttle gap undesirably decreases.
Zur Lösung des Problems, zu verhindern, daß mit zunehmendem Verschleiß der Rakelmesser die Drosselspalte zwischen den Zwischenwänden und der Farbauftragswalze kleiner werden, ist nach einer erfinderischen Weiterbildung, für die selbständiger Schutz beansprucht wird, vorgesehen, daß die die Drosselspalte begrenzenden Zwischenwände in radialer Richtung zur Farbauftragswalze beweglich in der Profilleiste gefuhrt und über Halteeinrichtungen im wesentlichen unbeweglich mit dem die Rakelvorrichtung tragenden Farbwerksbock verbunden sind, so daß bei einem Verschleiß der Rakelmesser die Breite der Drosselspalte im wesentlichen konstant bleibt. Nach dieser erfinderischen Weiterbildung ist also vorgesehen, daß die die Drosselspalte begrenzenden Zwischenwände relativ zu dem Farbwerksbock unbeweglich gehalten werden, so daß sie die infolge des Verschleißes der Rakelmessersich ergebende Annäherung der Profilleiste an die Rasterwalze nicht mitmachen. Auf diese Weise ist gewährleistet, daß die Breite der Drosselspalte zwischen den kreisbogenförmig gekrümmten Kanten der Zwischenwände und der Rasterwalze konstant bleibt.To solve the problem, prevent it from increasing Wear the doctor blade the choke gap between the partitions and the inking roller get smaller is after inventive development for the self-employed Protection is claimed, provided that the throttle gap delimiting partitions in the radial direction to the inking roller movably guided in the profile strip and over holding devices essentially immobile with which the doctor device supporting inking unit are connected, so that at wear of the doctor blade the width of the throttle gap remains essentially constant. After this inventive Training is therefore provided that the throttle column bounding partition walls immovable relative to the inking unit frame are held so that they are the result of wear the doctor blade resulting approximation of the profile bar do not participate in the anilox roller. That way ensures that the width of the throttle gap between the curved edges of the partition walls and the Anilox roller remains constant.
Die im wesentlichen unwegliche Verbindung der Zwischenwände mit dem die Rakelvorrichtung tragenden Farbwerksbock kann durch unterschiedliche Mittel bewerkstelligt werden. Nach einer bevorzugten Ausführungsform ist vorgesehen, daß die Zwischenwände durch federnde Zungen oder Stege mit der Profilleiste verbunden sind, so daß sie entsprechend dem fortschreitenden Verschleiß der Rakelmesser federnd nach hinten ausweichen können.The essentially impassable connection of the partitions with the inking unit frame carrying the squeegee device be accomplished by different means. After a preferred embodiment provides that the partitions through resilient tongues or webs with the profile strip are connected so that they correspond to the progressive Dodge wear of the doctor blades to the rear can.
Die Zwischenwände können jeweils über Stangen auf einem Anschlag der Farbwerkbox abgestützt sein.The partitions can each have rods on one stop the inking box be supported.
Die Stangen können durch besondere Bohrungen oder Öffnungen aus der Profilleiste herausgeführt sein. Zweckmäßig ist es jedoch, die Stangen durch die Entlüftungsbohrungen aus der Profilleiste herauszuführen, die ohnehin vorhanden sind, so daß keine besonderen Öffnungen oder Durchbrüche für die Stangen vorgesehen werden müssen.The rods can pass through special holes or openings be led out of the profile bar. However, it is useful the rods through the ventilation holes from the profile strip lead out, which are present anyway, so that no special openings or openings for the rods must be provided.
Zweckmäßigerweise ist der Anschlag durch eine Stelleinrichtung verstellbar, so daß zusätzlich die Möglichkeit gegeben ist, die Breite der Drosselspalte einzustellen.The stop is expedient by an actuating device adjustable, so that there is also the possibility adjust the width of the throttle gap.
Ausführungsbeispiele der Erfindung werden nachstehend anhand der Zeichnung näher erläutert. In dieser zeigt
- Fig. 1
- eine Seitenansicht des Farbwerkbocks mit längs der Linie I-I in Fig. 2 geschnittener Farbkammerrakel,
- Fig. 2
- einen Schnitt durch den Rakelmesserträger längs der Linie II-II in Fig. 1,
- Fig. 3
- eine Ansicht der Farbkammerrakel in Richtung des Pfeils A in Fig. 2,
- Fig. 4
- eine der Fig. 1 entsprechende Seitenansicht des Farbwerkbocks mit geschnittener Farbkammerrakel, bei der die die Drosselspalte begrenzenden Zwischenwände relativ zu dem Farbwerksbock unverschieblich gehalten sind, und
- Fig. 5
- einen der Fig. 2 entsprechenden Schnitt durch den Rakelmesserträger längs der Linie V-V in Fig. 4.
- Fig. 1
- 3 shows a side view of the inking unit with ink chamber doctor blade cut along line II in FIG. 2,
- Fig. 2
- 2 shows a section through the doctor blade carrier along the line II-II in FIG. 1,
- Fig. 3
- 2 shows a view of the ink chamber doctor blade in the direction of arrow A in FIG. 2,
- Fig. 4
- a side view of the inking unit corresponding to FIG. 1 with a cut ink chamber doctor blade, in which the intermediate walls delimiting the throttle gaps are held immovably relative to the inking unit unit, and
- Fig. 5
- 3 shows a section through the doctor blade carrier corresponding to FIG. 2 along the line VV in FIG. 4.
In dem Farbwerksbock 1, der in üblicher weise verschieblich
auf dem ebenfalls als Schlitten ausgebildeten Druckzylinderbock
gelagert ist, ist in üblicher und daher nicht näher beschriebener
Weise eine Seite der Rasterwalze 2 gelagert.In the inking unit 1, which is movable in the usual way
on the pressure cylinder block, which is also designed as a slide
is stored in the usual and therefore not described in detail
One side of the
An dem Farbswerkbock 1 sind um die Gelenkachsen 3, 4 die Parallellenker
5, 6 schwenkbar gelagert. Die oberen Enden der Parallellenker
5, 6 sind um die Gelenkachsen 7, 8 schwenkbar mit
dem eine Koppel bildenden Träger 9 verbunden. Der Träger 9 ist
einstückig mit dem Rakelträger 10 ausgebildet. Der Rakelträger
10 ist durch mit Handrädern 11 versehene Schrauben mit dem Rakelmesserträger
verbunden.On the inking unit 1 are the parallel links around the
In der Gelenkachse 8 ist mit dem Träger 9 oder mit den oberen
Enden der Parallellenker 6 die Kolbenstange 12 eines Pneumatikzylinders
13 gelenkig verbunden, der seinerseits über ein Tragstück
14 durch das Gelenk 15 an den Farbwerksbock 1 angelenkt
ist. In the
Beim Anstellen der Rakelmesser an die Rasterwalze und beim Abrücken
bleiben die Koppel und der Rakelmesserträger 11 zu sich
selbst parallel, weil die Parallellenker 5, 6 gleiche Längen
aufweisen und bei ihrem Verschwenken ihre Parallelität beibehalten.When placing the doctor blade against the anilox roller and when moving away
the paddock and
Die Gelenkachsen 4 der Parallellenker 6 sind mit einer Exzenterverstellung 4' versehen, aufgrund derer sich die Schwenkachse des Parallellenkers 6 anheben und absenken läßt.The hinge axes 4 of the parallel link 6 are with an eccentric adjustment 4 'provided, due to which the pivot axis the parallel link 6 can be raised and lowered.
Die Parallellenker 5, 6 jedes der beiden die Rasterwalze 2 lagernden
Farbwerksbocks können zur Erhöhung der Stabilität doppelt
ausgeführt sein.The
Der Rakelmesserträger 11 besteht aus einer Profilleiste, dessen
Profil aus Fig. 1 ersichtlich ist. Die Leiste des Rakelmesserträgers
11 ist mit einer den Farbkammerinnenraum bildenden
Rinne 20 versehen. In diese Rinne mündet im unteren mittleren
Bereich, wie aus Fig. 3 ersichtlich ist, eine die Druckfarbe
zuführende Bohrung 21. In den unteren Endbereichen ist die Rinne
durch die die Druckfarbe abführenden Bohrungen 22, 23 angeschnitten.
In die oberen Endbereiche der Rinne münden Entlüftungsbohrungen
24, 25.The
Die Stirnseiten 26, 27 der Rinnenränder sind gegensinnig dachförmig
abgeschrägt. Auf diesen Stirnflächen 26, 27 sind durch
Klemmhalterungen 28, 29 die Rakelmesser 30, 31 in üblicher und
daher nicht näher beschriebener weise befestigt.The end faces 26, 27 of the gutter edges are roof-shaped in opposite directions
beveled. On these end faces 26, 27 are through
Clamping
An den Seiten des Rakelmesserträgers 11 sind Dichtungen 33, 34
angeordnet, die den Farbkammerinnenraum 20 gegenüber der Rasterwalze
2 abdichten. Zur Halterung dieser Dichtungen sind
mit den seitlichen Stirnseiten der Leiste des Rakelmesserträgers
Deckel 35, 36 verschraubt.
Der Farbkammerinnenraum ist an seinen Seiten mit im Querschnitt
etwa L-förmigen Kammern 38, 39 versehen. Diese Kammern
sind von dem Mittelteil des Farbkammerinnenraums durch Zwischenwandungen
40, 41 abgeteilt, deren gegen die Rasterwalze 2
weisende Kanten kreisförmig gekrümmte Spalte 42, 43 begrenzen.
Ausgehend von den Kanten 42, 43 gehen gekrümmte Wandungsteile
44, 45 in den mittleren Hauptteil des Farbkammerinnenraums
über.The interior of the ink chamber is cross-sectionally on its sides
provided approximately L-
Die seitlichen Kammern 38, 39 sind durch die drosselnden Spalte
42, 43 mit dem mittleren Teil des Farbkammerinnenraums verbunden.
Die Wandungsteile 40, 41 bilden somit gleichsam Wehre,
durch die die in den Mittelteil des Farbkammerinnenraums durch
die Zuführungsbohrung 21 eingeleitete Farbe unter Druckverminderung
in die drucklosen seitlichen Kammern 38, 39 eintritt.
Um die Drucklosigkeit der Kammern 38, 39 zu gewährleisten, münden
in diese die Entlüftungsbohrungen 24, 25.The
Die Außenseiten der Wandungen 40, 41 sind mit Belägen 48, 49
aus Kunststoff versehen, die die die Spalte 42, 43 begrenzenden
Kanten geringfügig überragen, so daß eine metallische Berührung
der Kanten mit der Rasterwalze 2 ausgeschlossen ist.The outer sides of the
Bei der Ausführungsform nach den Figuren 4 und 5 sind die Zwischenwände
50, 51 durch federnde Stege 52, 53 mit dem gegenüber
den seitlichen Nebenkammern 38, 39 erhöhten Boden 54 der
Hauptkammer verschraubt, wobei die Verschraubungen durch die
strichpunktierten Linien 55 angedeutet sind. Die federnden Stege
52 sind in entsprechende stufenförmige Ausfräsungen des Bodens
54 eingepaßt. Weiterhin sind zwischen den verschraubten
Endbereichen der federnden Stege 52, 53 und dem Boden stufenförmig
abgesetzte Aussparungen 56 vorgesehen, um den Zwischenwänden
50, 51 ein genügend weites Ausfedern nach hinten zu gestatten.
In den die stufenförmigen Aussparungen 56 begrenzenden
Rückwandungen des Bodens sind Sacklöcher 57 angeordnet,
wobei zwischen den Gründen dieser Sacklöcher und den Rückseiten
der federnden Stege 52, 53 Druckfedern 58 eingespannt
sind.In the embodiment according to Figures 4 and 5 are the
Mit den die Nebenkammern begrenzenden Stirnseiten der Zwischenwände
50, 51 sind Haltestücke 60 verschraubt, in denen in der
aus Fig. 4 ersichtlichen Weise die einen Enden von im wesentlichen
biegesteifen Stangen 61 befestigt sind, deren anderen Enden
sich auf eine Stellschraube 62 abstützen, die in eine mit
dem Farbwerksbock starr verbundene Konsole 63 eingeschraubt
ist. Die die Zwischenwände 50, 51 relativ zu dem Farbwerksbock
1 fixierenden Stangen 61 durchsetzen die ohnehin vorhandenen
Entlüftungsbohrungen 24, 25.With the end faces of the partition walls that delimit the
Claims (13)
- Doctor device for a fountain-type inking unit of a rotary printing machine, consisting of a doctor-blade carrier (11) which is formed by a profiled bar with a gutter-shaped recess and to which are fastened in an approximately roof-shaped manner, and parallel to one another, two doctor blades (30, 31) which are capable of being thrown onto an ink-applicator or engraved roller (2) and which, together with the ink-applicator roller, the gutter-shaped recess of the doctor-blade carrier and sealing means (33, 34) provided on the end faces of the latter, delimit an inking chamber (20), of conduits (21, 22, 23) for feeding ink into the inking chamber and for discharging it from the latter, and of throw-on means for pressing the doctor-blade carrier onto the ink-applicator roller, characterized in that the gutter-shaped recess is provided with a middle mid-part, preferably extending into the end regions of the said recess and forming a main chamber, and with end-face side parts which form secondary chambers and which are connected to the main chamber by means of restrictor gaps (42, 43), in that the conduit (21) feeding the ink opens into the main chamber, and in that the side parts (38, 39) are provided with the conduits (22, 23) discharging the ink and with venting bores (24, 25).
- Doctor device according to Claim 1, characterized in that the main chamber and the secondary chambers (38, 39) are separated from one another by radial intermediate walls (40, 41) of the gutter-shaped recess, the circular-arcuately curved edges of the said intermediate walls delimiting, with the engraved roller (2), the restrictor gaps (42, 43).
- Doctor device according to Claim 1 or 2, characterized in that the intermediate walls (40, 41) are formed by rib-like elevations.
- Doctor device according to one of Claims 1 to 3, characterized in that the intermediate walls (40, 41) merge into the main chamber by means of curved wall parts (44, 45).
- Doctor device according to one of Claims 1 to 4, characterized in that the outer sides of the intermediate walls (40, 41) lie on radial planes.
- Doctor device according to one of Claims 1 to 5, characterized in that at least one side of each of the intermediate walls (40, 41) is provided with a plastic coating (48, 49) which projects beyond the edges of the intermediate walls and thus delimits the restrictor gaps (42, 43) on the doctor side.
- Doctor device according to one of Claims 1 to 6, characterized in that the secondary chambers (38, 39) have an L-shaped cross section, as seen in a longitudinal section through the doctor-blade carrier (11).
- Doctor device according to Claim 7, characterized in that a space formed by one L-leg of the secondary chambers (38, 39) extends in each case underneath the main chamber.
- Doctor device according to one of Claims 1 to 8, characterized in that the intermediate walls (50, 51) delimiting the restrictor gaps are guided in the profiled bar so as to be movable in the radial direction relative to the ink-applicator roller (2) and are connected essentially immovably, via holding means (61), to the inking-unit frame (1) carrying the doctor device, so that, when the doctor blades undergo wear, the width of the restrictor gaps remains essentially constant.
- Doctor device according to Claim 9, characterized in that the intermediate walls (50, 51) are connected to the profiled bar by means of resilient tongues or webs (52, 53).
- Doctor device according to Claim 9 or 10, characterized in that the intermediate walls (50, 51) are supported, in each case via a rod (61), on an abutment of the inking-unit frame (1).
- Doctor device according to Claim 11, characterized in that the rods (61) are led out of the profiled bar through the venting bores (24, 25).
- Doctor device according to one of Claims 9 to 12, characterized in that the abutment can be adjusted by an actuating means (62, 63).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19516223A DE19516223C2 (en) | 1995-05-03 | 1995-05-03 | Doctor device for a rinsing inking unit of a rotary printing machine |
| DE19516223 | 1995-05-03 | ||
| PCT/EP1996/001757 WO1996034751A1 (en) | 1995-05-03 | 1996-04-26 | Doctor device for the inking system of a rotary printing press |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0822897A1 EP0822897A1 (en) | 1998-02-11 |
| EP0822897B1 true EP0822897B1 (en) | 1999-08-25 |
Family
ID=7760969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP96914136A Expired - Lifetime EP0822897B1 (en) | 1995-05-03 | 1996-04-26 | Doctor device for the inking system of a rotary printing press |
Country Status (12)
| Country | Link |
|---|---|
| US (1) | US5927199A (en) |
| EP (1) | EP0822897B1 (en) |
| JP (1) | JPH11511705A (en) |
| KR (1) | KR19990008179A (en) |
| CN (1) | CN1077505C (en) |
| BR (1) | BR9608122A (en) |
| CZ (1) | CZ343797A3 (en) |
| DE (1) | DE19516223C2 (en) |
| ES (1) | ES2138816T3 (en) |
| IN (1) | IN187543B (en) |
| TW (1) | TW299285B (en) |
| WO (1) | WO1996034751A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10150488B4 (en) * | 2001-10-16 | 2005-08-04 | Windmöller & Hölscher Kg | Front seal of the doctor chamber |
| DE102008012552A1 (en) | 2008-03-04 | 2009-09-17 | Windmöller & Hölscher Kg | Ink chamber doctor blade on a printing machine |
| DE102008042460A1 (en) | 2008-09-29 | 2010-04-08 | Windmöller & Hölscher Kg | Apparatus and method for supplying a printing or printing unit of a printing press with printing ink or another liquid |
Families Citing this family (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19548535C2 (en) * | 1995-12-22 | 1999-12-30 | Windmoeller & Hoelscher | Method and device for cleaning a doctor blade device for a rinsing inking unit of a rotary printing press |
| DE19611048A1 (en) * | 1996-03-20 | 1997-09-25 | Windmoeller & Hoelscher | Printing machine, preferably flexographic printing machine |
| DE19652289A1 (en) * | 1996-12-16 | 1998-06-18 | Voith Sulzer Papiermasch Gmbh | Web coating applicator |
| DE19652857A1 (en) * | 1996-12-18 | 1998-06-25 | Voith Sulzer Papiermasch Gmbh | Connecting device to connect setting device to unit of coating machine |
| DE19847108C2 (en) * | 1998-10-13 | 2002-10-24 | Windmoeller & Hoelscher | anilox roller |
| DE19848773C2 (en) * | 1998-10-22 | 2002-11-28 | Windmoeller & Hoelscher | Device for placing and removing an ink chamber doctor blade on the anilox roller of a printing press |
| ATE288831T1 (en) * | 1999-11-29 | 2005-02-15 | Goss Int Montataire Sa | DEVICE FOR SEALING A COLOR SUPPLY ON PRINTING MACHINES |
| US7178461B2 (en) * | 2002-12-09 | 2007-02-20 | Color Control Corp. | Ink fountain assembly with non-tilt cheeks and liner replacement mechanism |
| US20040143231A1 (en) | 2003-01-21 | 2004-07-22 | The Procter & Gamble Company | Absorbent product containing absorbent articles each having different graphic |
| ES2216725B1 (en) * | 2004-04-20 | 2006-01-16 | Comexi, Sa | RASQUET DEVICE FOR A DYEING GROUP OF A FLEXOGRAPHIC PRINTER. |
| ES2300202B1 (en) | 2006-11-16 | 2009-02-16 | Comexi, S.A. | RASQUETTE DEVICE FOR A DYING GROUP OF A FLEXOGRAPHIC PRINTER. |
| DE102007027385B4 (en) | 2007-06-11 | 2011-06-16 | Windmöller & Hölscher Kg | Ink chamber for an inking unit of a rotary printing press and method for producing such a ink chamber |
| US20100089264A1 (en) * | 2008-10-10 | 2010-04-15 | Alrick Vincent Warner | Absorbent Articles Having Distinct Graphics And Apparatus And Method For Printing Such Absorbent Articles |
| US8776683B2 (en) * | 2009-06-02 | 2014-07-15 | The Procter & Gamble Company | Process for manufacturing absorbent products having customized graphics |
| EP2773506A1 (en) * | 2011-11-03 | 2014-09-10 | Tetra Laval Holdings & Finance S.A. | An apparatus for flexographic printing of a web of packaging material |
| CN103213389B (en) * | 2013-04-20 | 2015-03-25 | 浙江超伟机械有限公司 | Printing and dyeing mechanism of a printing machine |
| ES2874079T3 (en) * | 2015-10-27 | 2021-11-04 | Macarbox S L U | Device for applying a fluid to a roller |
| EP3393808A1 (en) * | 2015-12-22 | 2018-10-31 | Tetra Laval Holdings & Finance S.A. | An apparatus for flexographic printing and an inlet module |
| CN107984881A (en) * | 2016-10-27 | 2018-05-04 | 天津联森包装制品有限公司 | A kind of double scraper adjusting mechanisms of dixie cup flexible printing |
| CN115352189B (en) * | 2022-09-14 | 2023-06-16 | 武汉信息传播职业技术学院 | Double-scraper circulating ink supply device for printing machine |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4581995A (en) * | 1985-06-07 | 1986-04-15 | Motter Printing Press Co. | Ink sealing assembly |
| DK49188D0 (en) * | 1988-02-01 | 1988-02-01 | Tresu As | RAKEL |
| DE3911839A1 (en) * | 1989-04-11 | 1990-10-18 | Koenig & Bauer Ag | DRAINAGE INK |
| DE4001734A1 (en) * | 1990-01-22 | 1991-07-25 | Windmoeller & Hoelscher | Squeegee device for a reel inking unit of a rotary printing machine |
| DE4001733A1 (en) * | 1990-01-22 | 1991-07-25 | Windmoeller & Hoelscher | Squeegee device for a reel inking unit of a rotary printing machine |
| SE470283B (en) * | 1992-05-22 | 1994-01-10 | Aake Boeoese | Chamber rotor device for printing and printing plants |
| US5406887A (en) * | 1993-01-15 | 1995-04-18 | Paper Converting Machine Company | Apparatus and method for doctor blade replacement in a flexographic press |
-
1995
- 1995-05-03 DE DE19516223A patent/DE19516223C2/en not_active Expired - Fee Related
-
1996
- 1996-04-26 KR KR1019970707704A patent/KR19990008179A/en not_active Application Discontinuation
- 1996-04-26 WO PCT/EP1996/001757 patent/WO1996034751A1/en not_active Application Discontinuation
- 1996-04-26 ES ES96914136T patent/ES2138816T3/en not_active Expired - Lifetime
- 1996-04-26 JP JP8532984A patent/JPH11511705A/en active Pending
- 1996-04-26 EP EP96914136A patent/EP0822897B1/en not_active Expired - Lifetime
- 1996-04-26 BR BR9608122A patent/BR9608122A/en not_active IP Right Cessation
- 1996-04-26 CN CN96194901A patent/CN1077505C/en not_active Expired - Fee Related
- 1996-04-26 CZ CZ973437A patent/CZ343797A3/en unknown
- 1996-04-26 US US08/945,748 patent/US5927199A/en not_active Expired - Lifetime
- 1996-05-01 IN IN799CA1996 patent/IN187543B/en unknown
- 1996-05-07 TW TW085105477A patent/TW299285B/zh active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10150488B4 (en) * | 2001-10-16 | 2005-08-04 | Windmöller & Hölscher Kg | Front seal of the doctor chamber |
| DE102008012552A1 (en) | 2008-03-04 | 2009-09-17 | Windmöller & Hölscher Kg | Ink chamber doctor blade on a printing machine |
| DE102008042460A1 (en) | 2008-09-29 | 2010-04-08 | Windmöller & Hölscher Kg | Apparatus and method for supplying a printing or printing unit of a printing press with printing ink or another liquid |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1077505C (en) | 2002-01-09 |
| ES2138816T3 (en) | 2000-01-16 |
| IN187543B (en) | 2002-05-18 |
| CZ343797A3 (en) | 1998-04-15 |
| US5927199A (en) | 1999-07-27 |
| JPH11511705A (en) | 1999-10-12 |
| KR19990008179A (en) | 1999-01-25 |
| DE19516223C2 (en) | 1997-03-20 |
| CN1188448A (en) | 1998-07-22 |
| TW299285B (en) | 1997-03-01 |
| EP0822897A1 (en) | 1998-02-11 |
| DE19516223A1 (en) | 1996-11-21 |
| WO1996034751A1 (en) | 1996-11-07 |
| BR9608122A (en) | 1999-02-09 |
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