EP0829351B1 - Ink unit - Google Patents

Ink unit Download PDF

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Publication number
EP0829351B1
EP0829351B1 EP97115319A EP97115319A EP0829351B1 EP 0829351 B1 EP0829351 B1 EP 0829351B1 EP 97115319 A EP97115319 A EP 97115319A EP 97115319 A EP97115319 A EP 97115319A EP 0829351 B1 EP0829351 B1 EP 0829351B1
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EP
European Patent Office
Prior art keywords
inking unit
unit according
cylinder
seal
straps
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
EP97115319A
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German (de)
French (fr)
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EP0829351A2 (en
EP0829351A3 (en
Inventor
Rudolf Herb
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.)
Koenig and Bauer AG
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Koenig and Bauer AG
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Publication date
Application filed by Koenig and Bauer AG filed Critical Koenig and Bauer AG
Publication of EP0829351A2 publication Critical patent/EP0829351A2/en
Publication of EP0829351A3 publication Critical patent/EP0829351A3/en
Application granted granted Critical
Publication of EP0829351B1 publication Critical patent/EP0829351B1/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41FPRINTING MACHINES OR PRESSES
    • B41F31/00Inking arrangements or devices
    • B41F31/20Ink-removing or collecting devices
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41FPRINTING MACHINES OR PRESSES
    • B41F31/00Inking arrangements or devices
    • B41F31/02Ducts, containers, supply or metering devices
    • B41F31/06Troughs or like reservoirs with immersed or partly immersed, rollers or cylinders
    • B41F31/07Troughs or like reservoirs with immersed or partly immersed, rollers or cylinders for rotogravure

Definitions

  • the invention relates to an inking unit for a Rotary printing machine according to the preamble of Claim 1.
  • DE 43 40 128 A1 is a generic one Inking unit known, the clear length of the ink tray is smaller than the length of the bale to be inked Cylinders. This is to prevent printing ink reaches the side parts of the cylinder.
  • the ink chamber is laterally limited by two holding plates that are radial too an anilox roller sealing washers with in Have circumferential sealing ribs.
  • the invention has for its object an inking unit to create, with which is largely prevented, that ink gets into areas outside of the the length of bale required for printing Cylinders lie.
  • a cylinder 1 to be colored e.g. B.
  • one Forme cylinder of a rotogravure printing press is one by known means, e.g. B. a not shown Hydraulic device, height-adjustable inking tray 2 arranged.
  • the cylinder 1 is by means of it Shaft journal 3; 4 in side frames, not shown drivable and rotatable about its axis of rotation 6 stored.
  • Above cylinder 1 is a known arranged impression roller, not shown.
  • the ink tray 2 has on the inside on its bottom surface 7 and on the side walls 8; 9 near its face 11; 12 two perpendicular to the axis of rotation 6 extending brackets 14, 16.
  • the bracket 14 is is near the end face 11 and the bracket 16 arranged in the vicinity of the end face 12. You can each z. B. consist of square section steel.
  • left side walls 23, 24 or right side walls 26, 27 attachable, for. B. attachable.
  • the left side walls 23, 24 consist of a left outer side wall 23 and a left inner side wall 24.
  • the right side walls 26, 27 consist of a right inner side wall 26 and a right outer side wall 27. Three side edges the side walls 23, 24 and 26, 27 are thus form-fitting with the bracket 14 or 16 in Connection.
  • the side walls 23, 24; 26, 27 can e.g. B. made of sheet brass or plastic and are through Spacers not shown in a clear Distance g is firmly spaced from each other.
  • the sidewalls 23, 24; 26, 27 can also be fixed to the brackets 14; 16 be connected.
  • the side walls 23, 24; 26, 27 point to the side to be inked cylinder 1 Recess 28 with a radius r, which is larger as a radius s of the cylinder 1. This creates between a circumference 29 of the cylinder 1 and the Recess 28 a gap 31.
  • Each between two side walls 23, 24 and 26, 27 and near the recess 28 is an elongated one the circumference 29 of the underside of the cylinder 1 conformable seal 32 arranged.
  • the seal 32 is in one short distance, about a tenth of a millimeter, from each side wall 23 or 24; 26 or 27 or between the side walls 23, 24 and 26, 27 frictionally arranged adjacent.
  • the seals 32 are thus in the inking ink tray 2 arranged that a clear distance a between the Seals 32 is smaller than a bale length l des Cylinder 1. This leaves at both ends of the Cylinder 1 is an annular color-free survived 62; 63 with a length b or c, z. B. from 50 mm each.
  • an ink storage space 64 with a length o is formed.
  • the printing ink located in the ink storage space 64 has one such level 33 that the cylinder to be colored 1 is wetted on its underside.
  • Doctor device shown squeegees z.
  • This squeegee device can be on the scope 29 of I., II. or III. Quadrant of the Cross section of the cylinder 1 bear (Fig. 2).
  • Each between the end faces 11; 12 and the outer left and right side walls 23; 27 becomes a side overflow section 17; 18 formed for printing ink.
  • the Ink tray 2 has a not shown Color feed and possibly several color sequences.
  • the seal 32 consists of a solvent resistant traction, e.g. B. from a rope 34 made of plastic, e.g. B. nylon. 34 are on this rope at equal intervals d, z. B. of 20 mm, alternately Bolt 36; 37 threaded with a round cross-section and on Rope 34 attached. Rotation axes 35 of the bolts 36; 37 run at right angles to the longitudinal axis 13 of the Rope 34.
  • Each bolt 36 carries, symmetrically to the longitudinal axis 13 of the Rope 34 at a distance e from each other, e.g. B. of 10 mm, mutually arranged tabs 38; 39.
  • the tabs 38; 39 are approximately rectangular in shape and have at the intersection 41 of their diagonals a bore 42, which is dimensioned so that the tab 38; 39 fit and captive on both sides of the bolt 36 can be postponed.
  • the tab 38; 39 is at both ends 43, 44 rounded in a circular arc with a radius f.
  • the Radius f corresponds to z. B. the distance d minus that Radius of a bolt 36. Accordingly, everyone lies Circular arc 43 of the tab 38; 39 at the extent of adjacent bolt 37.
  • Each bolt 37 adjacent to the bolt 36 on both sides has the same diameter n as the bolt 36 and can be applied to both sides of the bolt 37 also two tabs 45; 46.
  • the tabs 45; 46 are as well as the tabs 38; 39 trained and located at a distance g, z. B. 13 mm, fit and captive on the ends of the bolts 37 (g greater e).
  • Each bolt 36; 37 has a length h, z. B. of 15 mm on.
  • the tabs are 38, 39; 45, 46 of the sealing members 47; 48 on their the Cylinder 1 facing top 49 each straight educated.
  • the sealing members 47; 48 are also out solvent resistant as well as rubber elastic or elastomeric material, e.g. B. plastic, such as nylon or Delrin manufactured.
  • Each sealing member 47; 48 has one Height t, which is approximately a bolt spacing d corresponds.
  • the seal 32 is between the side walls 23, 24 and 26, 27 in the area of the recess 28 arranged.
  • a first end 51 of the seal 32 is by means of the rope 34 on a side wall fixed Bracket 52; 53 attached (bracket 52 not shown).
  • a second end 54 of the seal 32 is by means of the rope 34 over a z.
  • At the The rope end acts as a counterforce in the form of a ink tank fixed spring or a counterweight 58; 59.
  • the inking unit according to the invention works like described below.
  • the inking unit works like described below.
  • the left and right outer side walls 23; 27 can in immediate vicinity of the brackets 14; 16 holes to possibly between the side walls 23, 24; 26, 27 accumulated ink to the overflow parts 17; 18 to derive.
  • By means of the respective counterweight 58; 59 ensures that the seals 32 each with uniform force on the circumference of the cylinder 1 is applied, regardless of the diameter of the cylinder 1.
  • the seal 32 on a tab 45 of an outer sealing member 48 a Short doctor blade 61 directed in the direction of cylinder 1 have which outside of the color level 33 the ink accumulating near the seal 32 scrapes off.
  • the doctor blades 61 of the seals 32 have towards each other and are within the light Distance a between the left and right side walls 23, 24; 26, 27.
  • the doctor blade 61 has a width m that is approximately one Bolt spacing d corresponds. It is possible that Side walls 23, 24; 26, 27 can be replaced very quickly, if this corresponds to that in the inking tray 2 arranged brackets 14; 16 are attached.
  • the elongated seal 32 can also be made of tabs exist, the underside of which is semi-circular with a Radius f are formed.
  • seals can be used be formed in the manner of a roller chain are and are preferably made of plastic.
  • the seal 32 may be small Amounts of fluid, i.e. H. e.g. B. lets gravure ink through, to "run dry" the seal 32 and thus one avoid high wear.
  • Another way to prevent the Running the seal 32 dry is spray nozzles to be arranged, which overhang regions 62; 63 of Cylinder 1 with solvent z. B. for gravure ink, Toluene, spray.
  • a seal 67 also formed and has roller chain-like a number of consecutively arranged similar sealing members 68 on (Fig. 6 and 7).
  • Each Sealing member 68 consists of two symmetrical to one Longitudinal axis 69 arranged tabs 71; 72.
  • Each tab 71; 72 has two in one in the longitudinal axis direction 69 Distance d spaced bores 73; 74 on.
  • the tabs 71; 72 are in pairs using spacers 76 spaced from each other and each by means of bolts 77 connected with each other.
  • Each tab 71; 72 fits and captively arranged on the bolt 77.
  • the Seal 67 has a width q and a height r.
  • the tabs 71; 72 are similar parts, but they are are arranged in mirror image to the longitudinal axis 69.
  • Each Tab 71; 72 consists of two tab parts 78; 79 same shape.
  • Each tab part 78; 79 is at his first broadside 81 concave and on its second Broadside 82 convex. So is a first Broadside 81 of a second tab part 79 with a second broadside 82 of a first tab part 78 in a z.
  • B. crescent-shaped area 83 overlaps and firmly interconnected (Fig. 6).

Landscapes

  • Inking, Control Or Cleaning Of Printing Machines (AREA)

Description

Die Erfindung betrifft ein Farbwerk für eine Rotationsdruckmaschine entsprechend dem Oberbegriff des Anspruches 1.The invention relates to an inking unit for a Rotary printing machine according to the preamble of Claim 1.

Durch die DE 43 40 128 A1 ist ein gattungsgemäßes Farbwerk bekannt, dessen lichte Länge der Farbwanne kleiner ist als die Ballenlänge des einzufärbenden Zylinders. Damit soll verhindert werden, daß Druckfarbe auf die Seitenteile des Zylinders gelangt.DE 43 40 128 A1 is a generic one Inking unit known, the clear length of the ink tray is smaller than the length of the bale to be inked Cylinders. This is to prevent printing ink reaches the side parts of the cylinder.

Aus der DE-AS 12 24 327 ist eine einstückige Radialdichtung für einen Tiefdruckzylinder bekannt, die zwei Farbbereiche voneinander trennt.From DE-AS 12 24 327 is a one-piece Radial seal for a gravure cylinder known separates two color areas.

Beim Kammerrakel nach DE 42 41 792 A1 ist die Farbkammer seitlich durch zwei Halteplatten begrenzt, die radial zu einer Rasterwalze weisende Dichtungsscheiben mit in Umfangsrichtung verlaufenden Dichtungsrippen aufweisen.In the chambered doctor blade according to DE 42 41 792 A1, the ink chamber is laterally limited by two holding plates that are radial too an anilox roller sealing washers with in Have circumferential sealing ribs.

Der Erfindung liegt die Aufgabe zugrunde, ein Farbwerk zu schaffen, mit welchem weitestgehend verhindert wird, daß Druckfarbe in Bereiche gelangt, die außerhalb der für den Druck benötigten Ballenlänge des einzufärbenden Zylinders liegen. The invention has for its object an inking unit to create, with which is largely prevented, that ink gets into areas outside of the the length of bale required for printing Cylinders lie.

Diese Aufgabe wird erfindungsgemäß durch die Merkmale des kennzeichnenden Teils des Anspruches 1 gelöst.This object is achieved by the features of the characterizing part of claim 1 solved.

Die mit der Erfindung erzielbaren Vorteile bestehen insbesondere darin, daß neben einer Abdichtung einer Farbwanne gegen druckfreie Bereiche eines einzufärbenden Zylinders, z. B. eines Tiefdruckzylinders, noch eine Formatvariabilität der Dichtung besteht. Die Dichtungen werden auch bei unterschiedlichen Ballenumfängen stets mit gleicher Kraft an den Umfang des Zylinders angedrückt.The advantages that can be achieved with the invention exist in particular that in addition to a seal Ink tray against pressure-free areas of a to be inked Cylinders, e.g. B. a gravure cylinder, another Format variability of the seal exists. The seals are always with different bale sizes with the same force on the circumference of the cylinder pressed.

Mehrere Ausführungsbeispiele der Erfindung sind in der Zeichnung dargestellt und werden im folgenden näher beschrieben. Es zeigen:

Fig. 1
einen Längsschnitt I - I einer vereinfachten schematischen Darstellung eines erfindungsgemäßen Farbwerkes nach Fig. 2;
Fig. 2
einen Querschnitt II - II nach Fig. 1;
Fig. 3
eine vergrößerte Darstellung einer Seitenansicht eines Dichtelementes in gestreckter Lage;
Fig. 4
eine Draufsicht nach Fig. 3;
Fig. 5
eine Seitenansicht einer Lasche;
Fig. 6
eine vergrößerte Darstellung einer Seitenansicht eines Dichtelementes eines zweiten Ausführungsbeispieles in gestreckter Lage;
Fig. 7
eine Draufsicht nach Fig. 6.
Several embodiments of the invention are shown in the drawing and are described in more detail below. Show it:
Fig. 1
a longitudinal section I - I of a simplified schematic representation of an inking unit according to the invention of FIG. 2;
Fig. 2
a cross section II - II of FIG. 1;
Fig. 3
an enlarged view of a side view of a sealing element in the extended position;
Fig. 4
a plan view of FIG. 3;
Fig. 5
a side view of a tab;
Fig. 6
an enlarged view of a side view of a sealing element of a second embodiment in the extended position;
Fig. 7
6 shows a top view according to FIG. 6.

Unterhalb eines einzufärbenden Zylinders 1, z. B. eines Formzylinders einer Tiefdruckrotationsdruckmaschine ist eine durch bekannte Mittel, z. B. eine nichtdargestellte Hydraulikeinrichtung höhenverstellbare Einfärb-Farbwanne 2 angeordnet. Der Zylinder 1 ist mittels seiner Wellenzapfen 3; 4 in nichtdargestellten Seitengestellen antreibbar und um seine Rotationsachse 6 rotierbar gelagert. Oberhalb des Zylinders 1 ist ein bekannter, nicht dargestellter Presseur angeordnet.Below a cylinder 1 to be colored, e.g. B. one Forme cylinder of a rotogravure printing press is one by known means, e.g. B. a not shown Hydraulic device, height-adjustable inking tray 2 arranged. The cylinder 1 is by means of it Shaft journal 3; 4 in side frames, not shown drivable and rotatable about its axis of rotation 6 stored. Above cylinder 1 is a known arranged impression roller, not shown.

Die Farbwanne 2 weist innen auf ihrer Bodenfläche 7 und an den Seitenwänden 8; 9 in der Nähe ihrer Stirnseite 11; 12 zwei rechtwinklig zur Rotationsachse 6 verlaufende Halterungen 14, 16 auf. Die Halterung 14 ist in der Nähe der Stirnseite 11 und die Halterung 16 ist in der Nähe der Stirnseite 12 angeordnet. Sie können jeweils z. B. aus Vierkantprofilstahl bestehen.The ink tray 2 has on the inside on its bottom surface 7 and on the side walls 8; 9 near its face 11; 12 two perpendicular to the axis of rotation 6 extending brackets 14, 16. The bracket 14 is is near the end face 11 and the bracket 16 arranged in the vicinity of the end face 12. You can each z. B. consist of square section steel.

An der Halterung 14 bzw. 16 sind linke Seitenwände 23, 24 bzw. rechte Seitenwände 26, 27 befestigbar, z. B. aufsteckbar. Die linken Seitenwände 23, 24 bestehen aus einer linken äußeren Seitenwand 23 und einer linken inneren Seitenwand 24. Die rechten Seitenwände 26, 27 bestehen aus einer rechten inneren Seitenwand 26 und einer rechten äußeren Seitenwand 27. Drei Seitenkanten der Seitenwände 23, 24 bzw. 26, 27 stehen somit formschlüssig mit der Halterung 14 bzw. 16 in Verbindung. Die Seitenwände 23, 24; 26, 27 können z. B. aus Messingblech oder Kunststoff bestehen und sind durch nichtdargestellte Abstandshalter in etwa einem lichten Abstand g fest voneinander beabstandet. Die Seitenwände 23, 24; 26, 27 können auch fest mit den Halterungen 14; 16 verbunden sein.On the bracket 14 and 16 are left side walls 23, 24 or right side walls 26, 27 attachable, for. B. attachable. The left side walls 23, 24 consist of a left outer side wall 23 and a left inner side wall 24. The right side walls 26, 27 consist of a right inner side wall 26 and a right outer side wall 27. Three side edges the side walls 23, 24 and 26, 27 are thus form-fitting with the bracket 14 or 16 in Connection. The side walls 23, 24; 26, 27 can e.g. B. made of sheet brass or plastic and are through Spacers not shown in a clear Distance g is firmly spaced from each other. The sidewalls 23, 24; 26, 27 can also be fixed to the brackets 14; 16 be connected.

Die Seitenwände 23, 24; 26, 27 weisen an ihrer dem einzufärbenden Zylinder 1 zugewandten Seite eine Aussparung 28 mit einem Radius r auf, welcher größer ist als ein Radius s des Zylinders 1. Somit entsteht zwischen einem Umfang 29 des Zylinders 1 und der Aussparung 28 ein Spalt 31.The side walls 23, 24; 26, 27 point to the side to be inked cylinder 1 Recess 28 with a radius r, which is larger as a radius s of the cylinder 1. This creates between a circumference 29 of the cylinder 1 and the Recess 28 a gap 31.

Jeweils zwischen zwei Seitenwänden 23, 24 bzw. 26, 27 und in der Nähe der Aussparung 28 ist eine längliche, an den Umfang 29 der Unterseite des Zylinders 1 anschmiegbare Dichtung 32 angeordnet. Somit wird der zwischen dem Umfang 29 des Zylinders 1 und der Aussparung 28 der Seitenwände 23, 24; 26, 27 bestehende Spalt 31 verschlossen. Die Dichtung 32 ist in einem geringen Abstand, ca. von einem Zehntel Millimeter, von jeder Seitenwand 23 oder 24; 26 oder 27 oder zwischen den Seitenwänden 23, 24 bzw. 26, 27 reibschlüssig anliegend angeordnet.Each between two side walls 23, 24 and 26, 27 and near the recess 28 is an elongated one the circumference 29 of the underside of the cylinder 1 conformable seal 32 arranged. Thus the between the circumference 29 of the cylinder 1 and the Recess 28 of the side walls 23, 24; 26, 27 existing Gap 31 closed. The seal 32 is in one short distance, about a tenth of a millimeter, from each side wall 23 or 24; 26 or 27 or between the side walls 23, 24 and 26, 27 frictionally arranged adjacent.

Die Dichtungen 32 sind so in der Einfärb-Farbwanne 2 angeordnet, daß ein lichter Abstand a zwischen den Dichtungen 32 kleiner ist als eine Ballenlänge l des Zylinders 1. Somit verbleibt an beiden Enden des Zylinders 1 jeweils ein ringförmiger farbfreier überstand 62; 63 mit einer Länge b bzw. c, z. B. von jeweils 50 mm.The seals 32 are thus in the inking ink tray 2 arranged that a clear distance a between the Seals 32 is smaller than a bale length l des Cylinder 1. This leaves at both ends of the Cylinder 1 is an annular color-free survived 62; 63 with a length b or c, z. B. from 50 mm each.

Zwischen der linken inneren Seitenwand 24 und der rechten inneren Seitenwand 26 sowie den Seitenwänden 8, 9 wird ein Farbstauraum 64 mit einer Länge o gebildet.Between the left inner side wall 24 and the right inner side wall 26 and the side walls 8, 9, an ink storage space 64 with a length o is formed.

Die im Farbstauraum 64 befindliche Druckfarbe weist ein solches Niveau 33 auf, daß der einzufärbende Zylinder 1 an seiner Unterseite benetzt wird. Zusätzlich ist innerhalb der Einfärb-Farbwanne 2 und zwischen den linken und rechten Seitenwänden 23, 24; 26, 27 noch eine gegen den Zylinder 1 wirkende, nicht dargestellte Einfärbewalze angeordnet. Eine ebenfalls nicht dargestellte Rakeleinrichtung rakelt z. B. überschüssige Tiefdruckfarbe vom Zylinder 1 ab. Diese Rakeleinrichtung kann am Umfang 29 des I., II. oder III. Quadranten des Querschnitts des Zylinders 1 anliegen (Fig. 2). Jeweils zwischen den Stirnseiten 11; 12 und den äußeren linken und rechten Seitenwänden 23; 27 wird ein seitliches überlaufteil 17; 18 für Druckfarbe gebildet. Die Einfärb-Farbwanne 2 weist einen nichtdargestellten Farbzulauf und ggf. mehrere Farbabläufe auf.The printing ink located in the ink storage space 64 has one such level 33 that the cylinder to be colored 1 is wetted on its underside. In addition is within the ink fountain 2 and between the left and right side walls 23, 24; 26, 27 another one acting against the cylinder 1, not shown Ink roller arranged. Not one either Doctor device shown squeegees z. B. excess Gravure ink from cylinder 1. This squeegee device can be on the scope 29 of I., II. or III. Quadrant of the Cross section of the cylinder 1 bear (Fig. 2). Each between the end faces 11; 12 and the outer left and right side walls 23; 27 becomes a side overflow section 17; 18 formed for printing ink. The Ink tray 2 has a not shown Color feed and possibly several color sequences.

Die Dichtung 32 besteht aus einem lösungsmittelresistenten Zugmittel, z. B. aus einem Seil 34 aus Kunststoff, z. B. Nylon. Auf diesem Seil 34 sind in gleichen Abständen d, z. B. von 20 mm, wechselweise Bolzen 36; 37 mit rundem Querschnitt aufgefädelt und am Seil 34 befestigt. Rotationsachsen 35 der Bolzen 36; 37 verlaufen dabei rechtwinklig zur Längsachse 13 des Seiles 34.The seal 32 consists of a solvent resistant traction, e.g. B. from a rope 34 made of plastic, e.g. B. nylon. 34 are on this rope at equal intervals d, z. B. of 20 mm, alternately Bolt 36; 37 threaded with a round cross-section and on Rope 34 attached. Rotation axes 35 of the bolts 36; 37 run at right angles to the longitudinal axis 13 of the Rope 34.

Jeder Bolzen 36 trägt, symmetrisch zur Längsachse 13 des Seiles 34 in einem Abstand e voneinander, z. B. von 10 mm, beiderseitig angeordnete Laschen 38; 39. Die Laschen 38; 39 sind etwa rechteckförmig ausgebildet und weisen im Schnittpunkt 41 ihrer Diagonalen eine Bohrung 42 auf, die so bemessen ist, daß die Lasche 38; 39 paßgerecht und unverlierbar beiderseitig auf den Bolzen 36 aufgeschoben werden kann.Each bolt 36 carries, symmetrically to the longitudinal axis 13 of the Rope 34 at a distance e from each other, e.g. B. of 10 mm, mutually arranged tabs 38; 39. The tabs 38; 39 are approximately rectangular in shape and have at the intersection 41 of their diagonals a bore 42, which is dimensioned so that the tab 38; 39 fit and captive on both sides of the bolt 36 can be postponed.

Die Lasche 38; 39 ist jeweils an ihren beiden Enden 43, 44 kreisbogenförmig mit einem Radius f abgerundet. Der Radius f entspricht z. B. dem Abstand d abzüglich dem Radius eines Bolzens 36. Demzufolge liegt jeder Kreisbogen 43 der Lasche 38; 39 am Umfang des benachbarten Bolzens 37 an.The tab 38; 39 is at both ends 43, 44 rounded in a circular arc with a radius f. The Radius f corresponds to z. B. the distance d minus that Radius of a bolt 36. Accordingly, everyone lies Circular arc 43 of the tab 38; 39 at the extent of adjacent bolt 37.

Jeder dem Bolzen 36 beiderseitig benachbarte Bolzen 37 weist den gleichen Durchmesser n auf wie der Bolzen 36 und trägt beiderseitig auf den Bolzen 37 aufbringbar ebenfalls zwei Laschen 45; 46. Die Laschen 45; 46 sind ebenso wie die Laschen 38; 39 ausgebildet und befinden sich in einem Abstand g, z. B. 13 mm, paßgerecht und unverlierbar auf den Enden der Bolzen 37 (g größer e). Jeder Bolzen 36; 37 weist eine Länge h, z. B. von 15 mm auf. Each bolt 37 adjacent to the bolt 36 on both sides has the same diameter n as the bolt 36 and can be applied to both sides of the bolt 37 also two tabs 45; 46. The tabs 45; 46 are as well as the tabs 38; 39 trained and located at a distance g, z. B. 13 mm, fit and captive on the ends of the bolts 37 (g greater e). Each bolt 36; 37 has a length h, z. B. of 15 mm on.

Somit reichen die kreisbogenförmig ausgebildeten Enden 43; 44 der Laschen 45; 46 an die Umfänge der benachbarten Bolzen 36 heran bzw. reichen die kreisbogenförmig ausgebildeten Enden 43; 44 der Laschen 38; 39 an die Umfänge der Bolzen 37 heran. Dadurch überdecken oder überlappen sich im lichten Abstand i zwischen zwei Bolzen 36; 37 zwei freie Laschenenden 43; 44 gegenläufig. Somit bilden zwei auf einen Bolzen 36 beiderseitig aufgeschobene Laschen 38; 39 in Verbindung mit dem Seil 34 ein Dichtglied 47 (Innenglied). Die auf einen Bolzen 37 beiderseitig aufgeschobenen Laschen 45; 46 bilden mit dem Seil 34 ein weiteres Dichtglied 48 (Außenglied). Die Dichtung 32 besteht demzufolge aus an dem Seil 34 wechselweise angeordneten Dichtgliedern 47; 48. Durch die sich gegenseitig überlappenden Dichtglieder 47; 48 wurde eine längliche Dichtung 32 geschaffen, welche sowohl eine große Dichtheit zum Abdichten des Spaltes 31 als auch eine gute zweidimensionale Beweglichkeit aufweist. Diese Beweglichkeit gewährleistet ein gutes und anschmiegbares Anlegen der Dichtung 32 an den Umfang 29 des Zylinders 1.The ends formed in the form of a circular arc are thus sufficient 43; 44 of the tabs 45; 46 to the extent of adjacent bolts 36 approach or reach the ends 43; 44 of the tabs 38; 39 approach the circumference of the bolts 37. Thereby overlap or overlap i between two bolts 36; 37 two free tab ends 43; 44 opposing. Thus, two form on one bolt 36 tabs 38 pushed on both sides; 39 in connection with the rope 34 a sealing member 47 (inner member). The on a bolt 37 on both sides pushed tabs 45; 46 form a further sealing member 48 with the cable 34 (Outer link). The seal 32 consequently consists of the rope 34 alternately arranged sealing members 47; 48. By overlapping each other Sealing members 47; 48 became an elongated seal 32 created, which both a great tightness to Sealing the gap 31 as well as a good one has two-dimensional mobility. This Mobility ensures a good and conformable Applying the seal 32 to the circumference 29 of the Cylinder 1.

Um die Anschmiegbarkeit zu verbessern, weisen die Laschen 38, 39; 45, 46 der Dichtung 32 an ihrer Oberseite 49, d. h. der dem Zylinder 1 zugewandten Seite einen Radius k auf, welcher etwa dem sieben- bis elffachen des Bolzenabstandes d entspricht. To improve the conformability, the Tabs 38, 39; 45, 46 of the seal 32 on their Top 49, d. H. the side facing the cylinder 1 a radius k, which is about the seven to corresponds to eleven times the bolt spacing d.

Nach einer anderen Ausführungsvariante sind die Laschen 38, 39; 45, 46 der Dichtglieder 47; 48 auf ihrer dem Zylinder 1 zugewandten Oberseite 49 jeweils geradlinig ausgebildet.According to another design variant, the tabs are 38, 39; 45, 46 of the sealing members 47; 48 on their the Cylinder 1 facing top 49 each straight educated.

Die Dichtglieder 47; 48 sind ebenfalls aus lösungsmittelresistentem sowie gummielastischem oder elastomerem Material, z. B. Kunststoff, wie Nylon oder Delrin hergestellt. Jedes Dichtglied 47; 48 weist eine Höhe t auf, welche in etwa einem Bolzenabstand d entspricht.The sealing members 47; 48 are also out solvent resistant as well as rubber elastic or elastomeric material, e.g. B. plastic, such as nylon or Delrin manufactured. Each sealing member 47; 48 has one Height t, which is approximately a bolt spacing d corresponds.

Die Dichtung 32 ist jeweils zwischen den Seitenwänden 23, 24 bzw. 26, 27 im Bereich der Aussparung 28 angeordnet. Ein erstes Ende 51 der Dichtung 32 ist mittels des Seiles 34 an einer seitenwandfesten Halterung 52; 53 befestigt (Halterung 52 nicht dargestellt). Ein zweites Ende 54 der Dichtung 32 ist mittels des Seiles 34 über eine z. B. seitengestellfeste Rolle 56; 57 geführt (Rolle 56 nicht dargestellt). Am Seilende wirkt eine Gegenkraft in Form einer farbwannenfesten Feder oder eines Gegengewichtes 58; 59.The seal 32 is between the side walls 23, 24 and 26, 27 in the area of the recess 28 arranged. A first end 51 of the seal 32 is by means of the rope 34 on a side wall fixed Bracket 52; 53 attached (bracket 52 not shown). A second end 54 of the seal 32 is by means of the rope 34 over a z. B. side frame fixed Roll 56; 57 performed (roll 56 not shown). At the The rope end acts as a counterforce in the form of a ink tank fixed spring or a counterweight 58; 59.

Das erfindungsgemäße Farbwerk funktioniert wie nachfolgend beschrieben. Beim Hochfahren der Einfärb-Farbwanne 2 in Richtung des Zylinders 1 legen sich die zwischen den Seitenwänden 23; 24 bzw. 26; 27 befindlichen Dichtungen 32 an den Umfang 29 des Zylinders 1 an. Eventuell vorher über die Aussparungen 28 der Seitenwände 23, 24 bzw. 26, 27 übergelaufene Tiefdruckfarbe wird dabei von den überlaufteilen 17; 18 der Einfärb-Farbwanne 2 aufgefangen. Die linken und rechten äußeren Seitenwände 23; 27 können in unmittelbarer Nähe der Halterungen 14; 16 Bohrungen aufweisen, um eventuell zwischen den Seitenwänden 23, 24; 26, 27 angesammelte Druckfarbe zu den überlaufteilen 17; 18 abzuleiten. Mittels des jeweiligen Gegengewichtes 58; 59 wird gewährleistet, daß die Dichtungen 32 jeweils mit gleichmäßiger Kraft am Umfang des Zylinders 1 anliegt, unabhängig vom Durchmesser des Zylinders 1.The inking unit according to the invention works like described below. When starting the Place inking tray 2 in the direction of cylinder 1 between the side walls 23; 24 or 26; 27 located seals 32 on the circumference 29 of the Cylinder 1. Possibly beforehand via the recesses 28 of the side walls 23, 24 and 26, 27 overflowed Gravure ink is from the overflow parts 17; 18th the inking tray 2. The left and right outer side walls 23; 27 can in immediate vicinity of the brackets 14; 16 holes to possibly between the side walls 23, 24; 26, 27 accumulated ink to the overflow parts 17; 18 to derive. By means of the respective counterweight 58; 59 ensures that the seals 32 each with uniform force on the circumference of the cylinder 1 is applied, regardless of the diameter of the cylinder 1.

Nach einer besonderen Ausführungsform kann die Dichtung 32 an einer Lasche 45 eines äußeren Dichtgliedes 48 eine In Richtung des Zylinders 1 gerichtete Kurzrakel 61 aufweisen, welche außerhalb des Farbniveaus 33 die sich die in Nähe der Dichtung 32 häufende Druckfarbe abrakelt. Die Rakeln 61 der Dichtungen 32 weisen aufeinander zu und befinden sich innerhalb des lichten Abstandes a zwischen den linken und rechten Seitenwänden 23, 24; 26, 27.According to a special embodiment, the seal 32 on a tab 45 of an outer sealing member 48 a Short doctor blade 61 directed in the direction of cylinder 1 have which outside of the color level 33 the ink accumulating near the seal 32 scrapes off. The doctor blades 61 of the seals 32 have towards each other and are within the light Distance a between the left and right side walls 23, 24; 26, 27.

Die Rakel 61 weist eine Breite m auf, die in etwa einem Bolzenabstand d entspricht. Es ist möglich, die Seitenwände 23, 24; 26, 27 sehr schnell auszuwechseln, wenn diese auf die in der Einfärb-Farbwanne 2 angeordnete Halterungen 14; 16 aufgesteckt sind. The doctor blade 61 has a width m that is approximately one Bolt spacing d corresponds. It is possible that Side walls 23, 24; 26, 27 can be replaced very quickly, if this corresponds to that in the inking tray 2 arranged brackets 14; 16 are attached.

Die längliche Dichtung 32 kann auch aus Laschen bestehen, deren Unterseite halbkreisförmig mit einem Radius f ausgebildet sind.The elongated seal 32 can also be made of tabs exist, the underside of which is semi-circular with a Radius f are formed.

Schließlich können auch andere Dichtungen verwendet werden, die in der Art einer Rollenkette ausgebildet sind und vorzugsweise aus Kunststoff bestehen.Finally, other seals can be used be formed in the manner of a roller chain are and are preferably made of plastic.

Es kann erwünscht sein, daß die Dichtung 32 in geringen Mengen Fluid, d. h. z. B. Tiefdruckfarbe hindurchläßt, um ein "Trocken laufen" der Dichtung 32 und somit einen hohen Verschleiß zu vermeiden.It may be desirable for the seal 32 to be small Amounts of fluid, i.e. H. e.g. B. lets gravure ink through, to "run dry" the seal 32 and thus one avoid high wear.

Eine weitere Möglichkeit zum Verhindern des Trockenlaufens der Dichtung 32 besteht darin, Sprühdüsen anzuordnen, welche die Überstandsbereiche 62; 63 des Zylinders 1 mit Lösungsmittel z. B. für Tiefdruckfarbe, Toluol, besprühen.Another way to prevent the Running the seal 32 dry is spray nozzles to be arranged, which overhang regions 62; 63 of Cylinder 1 with solvent z. B. for gravure ink, Toluene, spray.

Nach einem zweiten Ausführungsbeispiel ist eine Dichtung 67 ebenfalls rollenkettenartig ausgebildet und weist eine Anzahl von hintereinander angeordneten gleichartigen Dichtgliedern 68 auf (Fig. 6 und 7). Jedes Dichtglied 68 besteht aus zwei symmetrisch zu einer Längsachse 69 angeordneten Laschen 71; 72. Jede Lasche 71; 72 weist in Längsachsenrichtung 69 zwei in einem Abstand d voneinander beabstandete Bohrungen 73; 74 auf. Die Laschen 71; 72 sind paarweise mittels Distanzstücken 76 voneinander beabstandet und jeweils mittels Bolzen 77 miteinander verbunden. Jede Lasche 71; 72 ist paßgerecht und unverlierbar auf dem Bolzen 77 angeordnet. Die Dichtung 67 weist eine Breite q und eine Höhe r auf.According to a second embodiment is a seal 67 also formed and has roller chain-like a number of consecutively arranged similar sealing members 68 on (Fig. 6 and 7). Each Sealing member 68 consists of two symmetrical to one Longitudinal axis 69 arranged tabs 71; 72. Each tab 71; 72 has two in one in the longitudinal axis direction 69 Distance d spaced bores 73; 74 on. The tabs 71; 72 are in pairs using spacers 76 spaced from each other and each by means of bolts 77 connected with each other. Each tab 71; 72 fits and captively arranged on the bolt 77. The Seal 67 has a width q and a height r.

Die Laschen 71; 72 sind gleichartige Teile, die jedoch zur Längsachse 69 spiegelbildlich angeordnet sind. Jede Lasche 71; 72 besteht aus zwei Laschenteilen 78; 79 gleicher Form. Jedes Laschenteil 78; 79 ist an seiner ersten Breitseite 81 konkav und an seiner zweiten Breitseite 82 konvex ausgebildet. Somit ist eine erste Breitseite 81 eines zweiten Laschenteiles 79 mit einer zweiten Breitseite 82 eines ersten Laschenteiles 78 in einem z. B. sichelförmigen Bereich 83 überlappt und fest miteinander verbunden (Fig. 6). The tabs 71; 72 are similar parts, but they are are arranged in mirror image to the longitudinal axis 69. Each Tab 71; 72 consists of two tab parts 78; 79 same shape. Each tab part 78; 79 is at his first broadside 81 concave and on its second Broadside 82 convex. So is a first Broadside 81 of a second tab part 79 with a second broadside 82 of a first tab part 78 in a z. B. crescent-shaped area 83 overlaps and firmly interconnected (Fig. 6).

BezugszeichenlisteReference list

11
Zylindercylinder
22nd
Einfärb-FarbwanneColor ink tray
33rd
Wellenzapfen (1)Shaft journal (1)
44th
Wellenzapfen (1)Shaft journal (1)
55
--
66
Rotationsachse (1)Rotation axis (1)
77
Bodenfläche (2)Floor area (2)
88th
Seitenwand (2)Sidewall (2)
99
Seitenwand (2)Sidewall (2)
1010th
--
1111
Stirnseite (17)End face (17)
1212th
Stirnseite (18)End face (18)
1313
Längsachse (34)Longitudinal axis (34)
1414
Halterung (21)Bracket (21)
1515
--
1616
Halterung (22)Bracket (22)
1717th
überlaufteil (2)overflow part (2)
1818th
überlaufteil (2)overflow part (2)
1919th
--
2020th
--
2121
--
2222
--
2323
linke äußere Seitenwand (21)left outer side wall (21)
2424th
linke innere Seitenwand (21)left inner side wall (21)
2525th
--
2626
rechte innere Seitenwand (22)right inner side wall (22)
2727
rechte innere Seitenwand (22) right inner side wall (22)
2828
Aussparung (23, 24; 26, 27)Recess (23, 24; 26, 27)
2929
Umfang (1)Scope (1)
3030th
--
3131
Spalt (28; 29)Gap (28; 29)
3232
Dichtungpoetry
3333
Farbniveau (2)Color level (2)
3434
Seil (32)Rope (32)
3535
Rotationsachse (36; 37)Axis of rotation (36; 37)
3636
Bolzen (32)Bolt (32)
3737
Bolzen (32)Bolt (32)
3838
Lasche, innen (32)Tab, inside (32)
3939
Lasche, innen (32)Tab, inside (32)
4040
--
4141
Schnittpunkt Diagonale (38; 39)Intersection diagonal (38; 39)
4242
Bohrung (38; 39)Bore (38; 39)
4343
Ende (38; 39; 45; 46)End (38; 39; 45; 46)
4444
Ende (38; 39; 45; 46)End (38; 39; 45; 46)
4545
Lasche, außen (32)Tab, outside (32)
4646
Lasche, außen (32)Tab, outside (32)
4747
Dichtglied (38; 39, 36; 34); InnengliedSealing member (38; 39, 36; 34); Inner link
4848
Dichtglied (45; 46; 37; 34); AußengliedSealing member (45; 46; 37; 34); Outer limb
4949
Oberseite (32; 67)Top (32; 67)
5050
--
5151
Ende, erstes (32)End, first (32)
5252
Halterung (21)Bracket (21)
5353
Halterung (22)Bracket (22)
5454
Ende, zweites (32)End, second (32)
5555
--
5656
Rolle (21) Roll (21)
5757
Rolle (22)Roll (22)
5858
Gegengewicht (21)Counterweight (21)
5959
Gegengewicht (22)Counterweight (22)
6060
--
6161
Kurzrakel (32)Short squeegee (32)
6262
überstand (b)protrusion (b)
6363
überstand (c)protrusion (c)
6464
Farbstauraum (24, 26)Color storage space (24, 26)
6565
--
6666
Farbstauraum (23, 27)Color storage space (23, 27)
6767
Dichtungpoetry
6868
Dichtglied (67)Sealing member (67)
6969
Längsachse (67)Longitudinal axis (67)
7070
--
7171
Lasche (68)Tab (68)
7272
Lasche (68)Tab (68)
7373
Bohrung (71; 72)Bore (71; 72)
7474
Bohrung (71; 72)Bore (71; 72)
7575
--
7676
Distanzstück (71; 72)Spacer (71; 72)
7777
Bolzen (71; 72)Bolt (71; 72)
7878
Laschenteil (71; 72) erstesTab part (71; 72) first
7979
Laschenteil (71; 72) zweitesTab part (71; 72) second
8080
--
8181
Breitseite, erste (78; 79)Broadside, first (78; 79)
8282
Breitseite, zweite (78; 79)Broadside, second (78; 79)
8383
Bereich (78; 79)Area (78; 79)
I - IIII - III
Quadrant (1) Quadrant (1)
bb
Länge (62)Length (62)
cc
Länge (63)Length (63)
dd
Abstand (36, 37; 73; 74)Distance (36, 37; 73; 74)
ee
Abstand (38, 39)Distance (38, 39)
ff
Radius (43)Radius (43)
gG
Abstand (45; 46)Distance (45; 46)
hH
Länge (36; 37)Length (36; 37)
ii
Abstand, lichter (36; 37)Distance, clear (36; 37)
kk
Radius (49)Radius (49)
mm
Breite (61)Width (61)
tt
Höhe (47; 48)Height (47; 48)
nn
Durchmesser (36; 37)Diameter (36; 37)
rr
Radius (28)Radius (28)
ss
Radius (1)Radius (1)
aa
Abstand, lichter (32, 32; 67, 67)Distance, clear (32, 32; 67, 67)
ll
Ballenlänge (1)Bale length (1)
oO
Länge (64)Length (64)
pp
Länge (66)Length (66)
qq
Breite, lichte (67)Wide, clear (67)
rr
Höhe, lichte (67)Height, clear (67)

Claims (18)

  1. Inking unit for a rotary printing machine, with an inking ink trough arranged below a cylinder to be inked, a clear length of the ink build-up space, delimited by a left-hand and a right-hand side wall, of the inking ink trough being smaller than a face length of the cylinder, and that [sic] each of the side walls has a clearance facing the cylinder and producing a gap, characterized in that, for each side wall (23; 27 or 24; 26 or 23, 24; 26, 27), there is provided a seal (32; 67) which is capable of mating with the circumference of the cylinder (1) and covers the gap (31) and which consists of a plurality of interconnected individual elements (45, 46; 47, 48; 71, 72) lined up against one another.
  2. Inking unit according to Claim 1, characterized in that the side walls (23; 27 or 24; 26 or 23, 24; 26, 27) are provided in a double-walled design.
  3. Inking unit according to Claim 1 and 2, characterized in that the seal (32; 67) is arranged in the interspace between the walls (23, 24; 26, 27) of the double-walled side walls (23; 27 or 24; 26 or 23, 24; 26, 27).
  4. Inking unit according to Claim 3, characterized in that the seal (32; 67) is arranged at a slight distance from or frictionally on the side walls (23, 24 or 26, 27).
  5. Inking unit according to Claims 1 to 4, characterized in that the side walls (23, 24; 26, 27) are arranged removably.
  6. Inking unit according to Claims 1 to 5, characterized in that the seal (32; 67) is of chain-like design and has a plurality of straps (38, 39; 45, 46 or 71; 72) arranged one behind the other.
  7. Inking unit according to Claims 1 to 6, characterized in that the seal (32) consists in each case of a plurality of inner/outer straps (38; 39/45; 46), in that the straps (38; 39/45; 46) are arranged on bolts (36; 37), and in that the bolts (36; 37) are slipped on a cord (34).
  8. Inking unit according to Claim 7, characterized in that both ends (43; 44) of the straps (38, 39; 45, 46) are rounded convexly.
  9. Inking unit according to Claim 6, characterized in that strap parts (78, 79) of the straps (71; 72) are lined up against one another positively, in a rounded manner, so as to engage one in the other.
  10. Inking unit according to Claims 6 and 9, characterized in that each strap (71; 72) has two bores (73; 74) spaced from one another, and in that the straps (71; 72) are connected to one another by means of bolts (77).
  11. Inking unit according to Claims 1 to 10, characterized in that a plurality of seals (67) are arranged parallel and next to one another.
  12. Inking unit according to Claims 1 to 11, characterized in that the seal (32; 67) is designed in the manner of a Gall's chain.
  13. Inking unit according to Claims 1 to 8, characterized in that a short doctor (61) stripping off a printing ink from the cylinder (1) is arranged on an individual element (48) of the seal (32).
  14. Inking unit according to Claims 6 to 13, characterized in that the straps (38, 39; 45, 46; 71, 72) are designed in each case rectilinearly or in a concavely curved manner on their top side (49) facing the cylinder (1).
  15. Inking unit according to Claims 1 to 14, characterized in that the seal (32; 67) consists of a plastic.
  16. Inking unit according to Claims 1 to 15, characterized in that the seal (32; 67) is capable of being tensioned via its ends (51; 54) against the circumference (29) of the cylinder (1).
  17. Inking unit according to Claims 1 to 16, characterized in that the cylinder (1) is designed as an intaglio printing cylinder.
  18. Inking unit according to Claims 1 to 16, characterized in that the cylinder (1) is designed as an engraved roller of an offset inking unit.
EP97115319A 1996-09-12 1997-09-04 Ink unit Expired - Lifetime EP0829351B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19637046A DE19637046C1 (en) 1996-09-12 1996-09-12 Inking mechanism for rotary printing machine
DE19637046 1996-09-12

Publications (3)

Publication Number Publication Date
EP0829351A2 EP0829351A2 (en) 1998-03-18
EP0829351A3 EP0829351A3 (en) 1998-11-11
EP0829351B1 true EP0829351B1 (en) 2000-06-28

Family

ID=7805348

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97115319A Expired - Lifetime EP0829351B1 (en) 1996-09-12 1997-09-04 Ink unit

Country Status (4)

Country Link
US (1) US5875713A (en)
EP (1) EP0829351B1 (en)
JP (1) JP2878249B2 (en)
DE (2) DE19637046C1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009039309B4 (en) 2009-08-31 2015-09-17 Kai Schneider Device with sealing strand, pre-doctor blade and lubrication as end seal between pressure cylinder and ink pan of a rotary printing machine
DE102020206778A1 (en) 2020-05-29 2021-12-02 Windmöller & Hölscher Kg Inking unit of a rotary printing press

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1224327B (en) * 1963-03-28 1966-09-08 Albert Schnellpressen Ink box for rotogravure rotary machines
DE3043234A1 (en) * 1980-11-15 1982-07-01 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach INKBOX FOR A PRINTING MACHINE
DE8034726U1 (en) * 1980-12-29 1981-05-27 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach DEVICE FOR SEPARATING AREAS OF COLOR APPLICATION ON INK BOXES FOR PRINTING MACHINES
US4426091A (en) * 1982-05-10 1984-01-17 J. I. Case Company Track joint seal assembly with interlocked thrust ring
DE4138807C1 (en) * 1991-11-26 1993-06-03 Cornelis Wapenveld Nl Gorter Colour chamber doctor - is for colour-transfer, screened circular cylindrical body such as screen roller or engraved cylinder
DE4340128C2 (en) * 1993-11-25 1996-07-25 Koenig & Bauer Albert Ag Rotogravure inking unit

Also Published As

Publication number Publication date
US5875713A (en) 1999-03-02
EP0829351A2 (en) 1998-03-18
EP0829351A3 (en) 1998-11-11
JPH1086339A (en) 1998-04-07
DE19637046C1 (en) 1997-05-28
JP2878249B2 (en) 1999-04-05
DE59701931D1 (en) 2000-08-03

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