EP0391245A2 - Doctor blade holder - Google Patents

Doctor blade holder Download PDF

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Publication number
EP0391245A2
EP0391245A2 EP90105973A EP90105973A EP0391245A2 EP 0391245 A2 EP0391245 A2 EP 0391245A2 EP 90105973 A EP90105973 A EP 90105973A EP 90105973 A EP90105973 A EP 90105973A EP 0391245 A2 EP0391245 A2 EP 0391245A2
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EP
European Patent Office
Prior art keywords
printing unit
cylinder
doctor blade
unit cylinder
axis
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.)
Granted
Application number
EP90105973A
Other languages
German (de)
French (fr)
Other versions
EP0391245B1 (en
EP0391245A3 (en
Inventor
Ingo Köbler
Thomas John
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Manroland AG
Original Assignee
MAN Roland Druckmaschinen AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by MAN Roland Druckmaschinen AG filed Critical MAN Roland Druckmaschinen AG
Publication of EP0391245A2 publication Critical patent/EP0391245A2/en
Publication of EP0391245A3 publication Critical patent/EP0391245A3/en
Application granted granted Critical
Publication of EP0391245B1 publication Critical patent/EP0391245B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F9/00—Rotary intaglio printing presses
    • B41F9/06—Details
    • B41F9/08—Wiping mechanisms
    • B41F9/10—Doctors, scrapers, or like devices
    • B41F9/1072—Blade construction

Definitions

  • the invention relates to a doctor holder for a doctor knife, which cooperates with a printing unit cylinder having a gap and can be adjusted at an angle to the cylinder axis.
  • doctor blade which is held in a doctor holder provided with the usual flat support surfaces, at an angle to the cylinder, the doctor blade will corrugate if an attempt is made to line it up with the printing unit cylinder.
  • the tendency to wave is greater, the more inclined the doctor blade is turned. Due to the waves, the pressure is not the same over the entire length of the squeegee. If you try to set the doctor blade so high that the required minimum pressure is present everywhere, some parts of the doctor blade are set more strongly. As a result, increased wear occurs here.
  • the invention has for its object to provide a doctor blade holder with which the doctor blade can be applied to a printing unit cylinder over the entire length with uniform pressure.
  • Fig. 3 shows the basic arrangement with a printing unit cylinder 1, the longitudinal axis of which is designated AA.
  • the printing unit cylinder 1 has a gap 2 with the width b, which is used to fasten an elevator, not shown, for example a gravure winding plate.
  • a doctor blade 3 can be placed on the printing unit cylinder and is held in a doctor holder consisting of an upper part 4 and a lower part 5.
  • the parts 4, 5 clamp the doctor blade 3 between them in a known manner, not shown. In the simplest form, they are connected to one another by means of screws.
  • the doctor blade 3 should be arranged inclined by an inclination angle ⁇ with respect to the longitudinal axis AA.
  • This angle is to be chosen so that at least part of the section of the knife knife 3 is always passed through the gap 2 Knife rests on the circumference of the printing unit cylinder 1, so the doctor blade 3 cannot fall into the gap 2.
  • the angle of inclination ⁇ should generally be selected between 0.1 ° and 1 °.
  • the exact shape of the contact surfaces of the upper and lower parts 4, 5 of the doctor blade holder can be determined by means of the following auxiliary structures described with reference to FIGS. 1 and 2.
  • the inclination angle ⁇ is chosen to be exaggerated for reasons of better visibility.
  • An initial plane (drawing plane in FIG. 1) is laid through the longitudinal axis A-A of the printing group cylinder 1 with a radius r and a length 1. Vertically on this starting level, a plane E 1 is built which intersects the longitudinal axis A-A at the desired inclination angle ⁇ .
  • the plane E 1 intersects the longitudinal axis A-A at point P 1 and the extension of an axially parallel surface line of the printing unit cylinder 1 in point P 2 lying in the starting plane. This plane further cuts the printing unit cylinder 1 between points Q 1 and Q 2.
  • the points P1 and P2 are outside the printing unit cylinder 1. Their distance clearly exceeds the length of the printing unit cylinder 1.
  • an elliptical cylinder with a longitudinal axis BB can be built perpendicular to the plane E 1.
  • the choice of the inclination angle ⁇ and the resulting shape and position of the elliptical cylinder result for each point of the cutting line Q1-Q2 an intersection angle ⁇ between ⁇ the surfaces of the printing unit cylinder 1 and the elliptical cylinder.
  • the tangent t1 to the circle G 'at point A' and the tangent t2 to the ellipse H 'at point A' include the cutting angle ⁇ , the angle of attack of the elliptical cylinder to the printing unit cylinder at point Q.
  • the cutting angle ⁇ varies for a selected one elliptical cylinder Z within narrow limits, due to the small inclination angle ⁇ depending on the position of the point Q on the section line Q1-Q2.
  • the size of the average cutting angle ⁇ is determined by the choice of the inclination angle ⁇ and the position of the point P 1 on the axis A-A of the printing unit cylinder 1.
  • the subsequent surface of the elliptical cylinder defines a curved surface that can be developed in one plane.
  • This partial surface D is checked in Fig. 2. If knife support surfaces 6, 7 are formed on the upper and lower part 4, 5 of the squeegee holder in accordance with the course of this surface, a flat, flexible surface can be provided between these knife support surfaces Clamp doctor blade 3, the front edge 8 of which lies along the stretch Q1 ⁇ -Q2 ⁇ evenly on the printing unit cylinder 1, as shown in FIGS. 2 to 4.
  • the cutting angle ⁇ is at the same time the angle of attack of the doctor blade 3 on the printing unit cylinder 1.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rotary Presses (AREA)

Abstract

In a doctor blade holder for a doctor blade which interacts with a printing cylinder having a gap and can be set obliquely to the cylinder axis, the surfaces fixing the doctor blade between them are constructed as partial surfaces of an elliptical cylinder which intersects the printing unit cylinder. …<IMAGE>…

Description

Die Erfindung betrifft eine Rakelhalterung für ein Rakelmesser, das mit einem einen Spalt aufweisenden Druckwerkzylinder zusammenwirkt und schräg zur Zylinderachse anstellbar ist.The invention relates to a doctor holder for a doctor knife, which cooperates with a printing unit cylinder having a gap and can be adjusted at an angle to the cylinder axis.

Es ist bekannt, an einen Druckwerkzylinder, der einen achsparallelen Spalt zum Festspannen der Enden einer Druckplatte aufweist, das Rakelmesser schräg zur Zylinderachse anzustellen, um das Hinübergleiten des Rakelmessers über den Spalt zu erleichtern, vgl. das Buch von Braun "Der Tiefdruck" 1952, Seite 139.It is known to position the doctor blade at an angle to the cylinder axis on a printing group cylinder which has an axially parallel gap for clamping the ends of a printing plate, in order to facilitate the sliding of the doctor blade over the gap, cf. Braun's book "Der Gravdruck" 1952, page 139.

Stellt man ein Rakelmesser, das in einer mit üblichen ebenen Auflageflächen versehenen Rakelhalterung gehalten ist, schräg zum Zylinder an, so wellt sich das Rakelmesser, wenn versucht wird es über die ganze Länge zur Anlage am Druckwerkzylinder anzustellen. Die Tendenz zum Wellen ist dabei um so größer, je schräger das Rakelmesser angestellt wird. Durch das Wellen ist der Andruck nicht über die ganze Rakellänge gleich. Versucht man, das Rakelmesser so stark anzustellen, daß überall der erforderliche minimale Andruck herrscht, so sind einige Stellen der Rakel stärker angestellt. Hier tritt infolgedessen ein erhöhter Verschleiß auf.If you position a doctor blade, which is held in a doctor holder provided with the usual flat support surfaces, at an angle to the cylinder, the doctor blade will corrugate if an attempt is made to line it up with the printing unit cylinder. The tendency to wave is greater, the more inclined the doctor blade is turned. Due to the waves, the pressure is not the same over the entire length of the squeegee. If you try to set the doctor blade so high that the required minimum pressure is present everywhere, some parts of the doctor blade are set more strongly. As a result, increased wear occurs here.

Der Erfindung liegt die Aufgabe zugrunde, eine Rakelhalterung zu schaffen, mit der das Rakelmesser über die gesamte Länge mit gleichmäßigem Druck an einen Druckwerkzylinder angestellt werden kann.The invention has for its object to provide a doctor blade holder with which the doctor blade can be applied to a printing unit cylinder over the entire length with uniform pressure.

Diese Aufgabe wird erfindungsgemäß durch Anwendung der Merkmale des Kennzeichens des Anspruchs 1 gelöst.This object is achieved according to the invention by applying the features of the characterizing part of claim 1.

Bei der Anwendung der erfindungsgemäßen Rakelhalterung, kann ein handelsübliches von Haus aus ebenes flexibles Rakelmesser mit einer geradlinigen Rakelkante zum Einsatz kommen, dennoch aber wird eine einwandfreie Anlage der Rakelkante über ihre gesamte Länge am Druckwerkzylinder erreicht. Dieser Vorteil wird außerdem auch bei relativ großen Schrägstellwinkeln in gleicher Weise erreicht.When using the doctor blade holder according to the invention, a commercially available flexible doctor blade with a flat rectilinear squeegee edge are used, but still a perfect contact of the squeegee edge is achieved over its entire length on the printing unit cylinder. This advantage is also achieved in the same way even with relatively large inclination angles.

Ein Ausführungsbeispiel der Erfindung ist anhand der Zeichnung beschrieben. Auf dieser zeigt

  • Fig. 1 eine Darstellung der geometrischen Verhältnisse,
  • Fig. 2 eine perspektivische Darstellung der Verschneidung,
  • Fig. 3 eine schematische Ansicht eines Druckwerkzylinders mit einer Rakel von oben,
  • Fig. 4 eine Ansicht der Rakelhalterung in Richtung der Pfeile III-III,
  • Fig. 5 einen Schnitt entlang der Linie IV-IV in Fig. 3 und
  • Fig. 6 einen Schnitt entlang der Linie V-V in Fig. 3.
An embodiment of the invention is described with reference to the drawing. On this shows
  • 1 is a representation of the geometric relationships,
  • 2 is a perspective view of the intersection,
  • 3 is a schematic view of a printing unit cylinder with a doctor blade from above,
  • 4 is a view of the doctor holder in the direction of arrows III-III,
  • Fig. 5 is a section along the line IV-IV in Fig. 3 and
  • 6 shows a section along the line VV in FIG. 3.

Fig. 3 zeigt die grundsätzliche Anordnung mit einem Druckwerkzylinder 1, dessen Längsachse mit A-A bezeichnet ist. Der Druckwerkzylinder 1 weist einen Spalt 2 mit der Breite b auf, der zur Befestigung eines nicht näher dargestellten Aufzuges, beispielsweise einer Tiefdruck-­Wickelplatte, dient. An den Druckwerkzylinder ist ein Rakelmesser 3 anstellbar, das in einer aus einem Oberteil 4 und einem Unterteil 5 bestehenden Rakelhalterung gehalten ist. Die Teile 4, 5 klemmen dabei das Rakelmesser 3 in an sich bekannter, nicht näher dargestellter Weise zwischen sich. In der einfachsten Form sind sie mittels Schrauben miteinander verbunden. Das Rakelmesser 3 soll um einen Schrägstellwinkel α gegenüber der Längsachse A-A geneigt angeordnet sein. Dieser Winkel ist so zu wählen, daß beim Durchlauf des Spaltes 2 unter dem Rakelmesser 3 stets mindestens ein Teilabschnitt des Messers auf dem Umfang des Druckwerkzylinders 1 aufliegt, das Rakelmesser 3 also nicht in den Spalt 2 einfallen kann. Dabei ist der Schrägstellwinkel α in der Regel zwischen 0,1° und 1° zu wählen.Fig. 3 shows the basic arrangement with a printing unit cylinder 1, the longitudinal axis of which is designated AA. The printing unit cylinder 1 has a gap 2 with the width b, which is used to fasten an elevator, not shown, for example a gravure winding plate. A doctor blade 3 can be placed on the printing unit cylinder and is held in a doctor holder consisting of an upper part 4 and a lower part 5. The parts 4, 5 clamp the doctor blade 3 between them in a known manner, not shown. In the simplest form, they are connected to one another by means of screws. The doctor blade 3 should be arranged inclined by an inclination angle α with respect to the longitudinal axis AA. This angle is to be chosen so that at least part of the section of the knife knife 3 is always passed through the gap 2 Knife rests on the circumference of the printing unit cylinder 1, so the doctor blade 3 cannot fall into the gap 2. The angle of inclination α should generally be selected between 0.1 ° and 1 °.

Die Ermittlung der genauen Form der Auflageflächen des Ober- und Unterteils 4, 5 der Rakelhalterung kann mittels folgender, anhand von Fig. 1 und 2 beschriebener Hilfskonstruktionen erfolgen. Dabei ist aus Gründen einer besseren Erkennbarkeit der Schrägstellwinkel α übertrieben groß gewählt.The exact shape of the contact surfaces of the upper and lower parts 4, 5 of the doctor blade holder can be determined by means of the following auxiliary structures described with reference to FIGS. 1 and 2. The inclination angle α is chosen to be exaggerated for reasons of better visibility.

Durch die Längsachse A-A des Druckwerkzylinders 1 mit einem Radius r und einer Länge 1 wird eine Ausgangsebene (Zeichnungsebene in Fig. 1) gelegt. Senkrecht auf dieser Ausgangsebene wird eine Ebene E₁ errichtet, die die Längsachse A-A unter dem gewünschten Schrägstellwinkel α schneidet.An initial plane (drawing plane in FIG. 1) is laid through the longitudinal axis A-A of the printing group cylinder 1 with a radius r and a length 1. Vertically on this starting level, a plane E 1 is built which intersects the longitudinal axis A-A at the desired inclination angle α.

Die Ebene E₁ schneidet die Längsachse A-A im Punkt P 1 und die Verlängerung der einen in der Ausgangsebene liegenden achsparallelen Mantellinie des Druckwerkzylinders 1 im Punkt P 2. Diese Ebene schneidet weiter den Druckwerkzylinder 1 zwischen den Punkten Q₁ und Q₂. Die Punkte P₁ und P₂ liegen außerhalb des Druckwerkzylinders 1. Ihr Abstand übersteigt deutlich die Länge des Druckwerkzylinders 1.The plane E 1 intersects the longitudinal axis A-A at point P 1 and the extension of an axially parallel surface line of the printing unit cylinder 1 in point P 2 lying in the starting plane. This plane further cuts the printing unit cylinder 1 between points Q 1 and Q 2. The points P₁ and P₂ are outside the printing unit cylinder 1. Their distance clearly exceeds the length of the printing unit cylinder 1.

Wird die Ebene E₁ mit der Schnittlinie Q₁-Q₂ um 90° in die Ausgangsebene geklappt, so ergibt sich der Streckenzug Q₁′-Q₂′ in Fig. 1 bzw. Q₁˝-Q₂˝ in Fig. 2. Dieser Streckenzug ist Teil einer Ellipse Z mit der großen Halbachse P₁ - P₂ und der kleinen Halbachse r, die gleich dem Radius r des Druckwerkzylinders 1 ist. Die Ellipse Z und der darauf aufbauende elliptische Zylinder sind in den Fig. 1 und 2 nur zur Hälfte dargestellt.If the plane E₁ with the section line Q₁-Q₂ is folded by 90 ° into the starting plane, the route Q₁'-Q₂ 'in Fig. 1 or Q₁˝-Q₂˝ in Fig. 2 results. This route is part of an ellipse Z with the large semi-axis P₁ - P₂ and the small semi-axis r, which is equal to the radius r of the printing unit cylinder 1. Only half of the ellipse Z and the elliptical cylinder based thereon are shown in FIGS. 1 and 2.

Auf der Ellipse Z läßt sich senkrecht zur Ebene E₁ ein elliptischer Zylinder mit einer Längsachse B-B errichten. Durch die Wahl des Schrägstellwinkels α und die dadurch bedingte Form und Lage des elliptischen Zylinders ergibt sich für jeden Punkt der Schnittlinie Q₁-Q₂ ein Schnitt-Winkel β zwischen β den Oberflächen des Druckwerkzylinders 1 und des elliptischen Zylinders.On the ellipse Z, an elliptical cylinder with a longitudinal axis BB can be built perpendicular to the plane E 1. The choice of the inclination angle α and the resulting shape and position of the elliptical cylinder result for each point of the cutting line Q₁-Q₂ an intersection angle β between β the surfaces of the printing unit cylinder 1 and the elliptical cylinder.

Legt man durch einen beliebigen Punkt Q der Schnittlinie Q₁-Q₂ eine senkrecht auf der Ausgangsebene (Zeichnungsebene in Fig. 1) errichtete Ebene E₂, die auch senkrecht auf der Längsachse A-A des Druckwerkzylinders 1 steht, so schneidet diese Ebene E₂ den Druckwerkzylinder in einem Kreis und den elliptischen Zylinder in einer Ellipse.If you put through any point Q of the section line Q₁-Q₂ a vertical E₂ on the initial plane (drawing plane in Fig. 1), which is also perpendicular to the longitudinal axis AA of the printing unit cylinder 1, this plane E₂ intersects the printing unit cylinder in a circle and the elliptical cylinder in an ellipse.

Wird die Ebene E₂ um 90° in die Ausgangsebene geklappt, so ergibt sich der Kreis G′ und ein Teil der Ellipse H′ in Fig. 1. Die kleine Halbachse b der Ellipse H′ ist gleich dem Radius r des Druckwerkzylinders, die große Halbachse c entspricht der Strecke T₁-T₂.If the plane E₂ is folded 90 ° into the starting plane, the circle G 'and part of the ellipse H' in Fig. 1. The small semi-axis b of the ellipse H 'is equal to the radius r of the printing unit cylinder, the large semi-axis c corresponds to the distance T₁-T₂.

Die Tangente t₁ an den Kreis G′ im Punkt A′ und die Tangente t₂ an die Ellipse H′ im Punkt A′ schließen den Schnittwinkel β ein, den Anstellwinkel des elliptischen Zylinders an den Druckwerkzylinder im Punkt Q. Der Schnittwinkel β variiert für einen gewählten elliptischen Zylinder Z in engen Grenzen, aufgrund des kleinen Schrägstellwinkels α je nach Lage des Punktes Q auf der Schnittlinie Q₁-Q₂. Die Größe des mittleren Schnittwinkels β wird durch die Wahl des Schrägstellwinkels α und die Lage des Punktes P₁ auf der Achse A-A des Druckwerkzylinders 1 bestimmt.The tangent t₁ to the circle G 'at point A' and the tangent t₂ to the ellipse H 'at point A' include the cutting angle β, the angle of attack of the elliptical cylinder to the printing unit cylinder at point Q. The cutting angle β varies for a selected one elliptical cylinder Z within narrow limits, due to the small inclination angle α depending on the position of the point Q on the section line Q₁-Q₂. The size of the average cutting angle β is determined by the choice of the inclination angle α and the position of the point P 1 on the axis A-A of the printing unit cylinder 1.

Wird der Streckenzug Q₁˝ -Q₂˝, also die Verschneidung des Druckwerkzylinders 1 mit dem elliptischen Zylinder, als Berührungslinie des Rakelmessers 3 mit dem Druckwerkzylinder 1 genommen, so definiert die anschließende Oberfläche des elliptischen Zylinders eine gebogene, aber in eine Ebene abwickelbare Fläche. Diese Teilmantelfläche D ist in Fig. 2 kariert eingetragen. Werden entsprechend dem Verlauf dieser Fläche Messerauflageflächen 6, 7 am Ober- und Unterteil 4, 5 der Rakelhalterung ausgebildet, so läßt sich zwischen diesen Messerauflageflächen ein ebenes, flexibles Rakelmesser 3 einspannen, dessen Vorderkante 8 entlang des Streckenzuges Q₁˝-Q₂˝ gleichmäßig am Druckwerkzylinder 1 anliegt, wie in den Fig. 2 bis 4 gezeigt. Der Schnittwinkel β ist dabei gleichzeitig der Anstellwinkel des Rakelmessers 3 an den Druckwerkzylinder 1.If the route Q₁˝ -Q₂˝, ie the intersection of the printing unit cylinder 1 with the elliptical cylinder, is taken as the line of contact of the doctor blade 3 with the printing unit cylinder 1, then the subsequent surface of the elliptical cylinder defines a curved surface that can be developed in one plane. This partial surface D is checked in Fig. 2. If knife support surfaces 6, 7 are formed on the upper and lower part 4, 5 of the squeegee holder in accordance with the course of this surface, a flat, flexible surface can be provided between these knife support surfaces Clamp doctor blade 3, the front edge 8 of which lies along the stretch Q₁˝-Q₂˝ evenly on the printing unit cylinder 1, as shown in FIGS. 2 to 4. The cutting angle β is at the same time the angle of attack of the doctor blade 3 on the printing unit cylinder 1.

Claims (2)

1. Rakelhalterung für ein Rakelmesser, das mit einem einen Spalt aufweisenden Druckwerkzylinder zusammenwirkt und schräg zur Zylinderachse anstellbar ist, dadurch gekennzeichnet, daß die das Rakelmesser (3) zwischen sich festlegenden Flächen (6, 7) des Ober- und Unterteils (4, 5) der Rakelhalterung als Teilmantelflächen eines elliptischen Zylinders ausgebildet sind, der auf einer Ellipse (Z) errichtet ist, und sich die elliptische Grundfläche des elliptischen Zylinders als Schnittfläche des zylindrischen Druckwerkzylinders (1) mit einer Ebene E1 ergibt, die unter einem Schrägstellwinkel α zur Längsachse A-A des Druckwerkzylinders den Druckwerkzylinder schneidet, und die kleine Halbachse der Ellipse (Z) gleich dem Radius (r) des Druckwerkzylinders (1) ist, während die große Halbachse die Länge (1) des Druckwerkzylinders (1) übersteigt.1. Doctor blade holder for a doctor blade, which cooperates with a printing unit cylinder having a gap and can be adjusted at an angle to the cylinder axis, characterized in that the doctor blade (3) between surfaces (6, 7) of the upper and lower parts (4, 5 ) the squeegee holder are designed as partial lateral surfaces of an elliptical cylinder, which is erected on an ellipse (Z), and the elliptical base surface of the elliptical cylinder results as a cut surface of the cylindrical printing unit cylinder (1) with a plane E1, which is at an inclination angle α to the longitudinal axis AA of the printing unit cylinder intersects the printing unit cylinder, and the small semi-axis of the ellipse (Z) is equal to the radius (r) of the printing unit cylinder (1), while the large semi-axis exceeds the length (1) of the printing unit cylinder (1). 2. Rakelhalterung nach Anspruch 1, dadurch gekennzeichnet, daß der Schrägstellwinkel α zwischen 0,1° und 1° liegt.2. Doctor holder according to claim 1, characterized in that the inclination angle α is between 0.1 ° and 1 °.
EP90105973A 1989-04-01 1990-03-29 Doctor blade holder Expired - Lifetime EP0391245B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3910497A DE3910497C1 (en) 1989-04-01 1989-04-01
DE3910497 1989-04-01

Publications (3)

Publication Number Publication Date
EP0391245A2 true EP0391245A2 (en) 1990-10-10
EP0391245A3 EP0391245A3 (en) 1991-04-24
EP0391245B1 EP0391245B1 (en) 1994-01-05

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ID=6377565

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Application Number Title Priority Date Filing Date
EP90105973A Expired - Lifetime EP0391245B1 (en) 1989-04-01 1990-03-29 Doctor blade holder

Country Status (5)

Country Link
US (1) US5101725A (en)
EP (1) EP0391245B1 (en)
JP (1) JP2837222B2 (en)
CA (1) CA2013255C (en)
DE (2) DE3910497C1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5517918A (en) * 1994-07-29 1996-05-21 Fischer & Krecke Gmbh & Co. Doctor blade clamping assembly for a printing press
CA2374786A1 (en) 1999-05-25 2000-11-30 John Moscone Doctor blade extractor

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1033986A (en) * 1963-10-28 1966-06-22 Argon Service Ltd Screen printing machines
FR2297089A1 (en) * 1975-01-10 1976-08-06 Stork Brabant Bv DEVICE FOR APPLYING A LAYER OF VISCOUS SUBSTANCE ON A MOVING BAND
US4047480A (en) * 1976-07-30 1977-09-13 E. I. Du Pont De Nemours And Company Longitudinally flexible squeegee and mounting strips therefor
FR2605291A1 (en) * 1986-10-21 1988-04-22 Colgate Palmolive Co CONTAINER COMPRISING PRINTED INFORMATION, PRINTING METHOD THEREOF AND CONTAINER BLANK FOR THEIR PRODUCTION

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1461068A (en) * 1922-07-29 1923-07-10 Regensteiner Theodore Printing roller
US1773949A (en) * 1928-08-10 1930-08-26 Oxford Varnish Corp Photogravure roll
GB879560A (en) * 1960-02-02 1961-10-11 Dominion Eng Works Ltd Improvements in doctors or scrapers for cylinders or drums
US2974586A (en) * 1960-04-19 1961-03-14 Hunt Forest Wethero Doctor blade and doctor blade shear for textile printing machine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1033986A (en) * 1963-10-28 1966-06-22 Argon Service Ltd Screen printing machines
FR2297089A1 (en) * 1975-01-10 1976-08-06 Stork Brabant Bv DEVICE FOR APPLYING A LAYER OF VISCOUS SUBSTANCE ON A MOVING BAND
US4047480A (en) * 1976-07-30 1977-09-13 E. I. Du Pont De Nemours And Company Longitudinally flexible squeegee and mounting strips therefor
FR2605291A1 (en) * 1986-10-21 1988-04-22 Colgate Palmolive Co CONTAINER COMPRISING PRINTED INFORMATION, PRINTING METHOD THEREOF AND CONTAINER BLANK FOR THEIR PRODUCTION

Also Published As

Publication number Publication date
CA2013255C (en) 1993-04-13
DE3910497C1 (en) 1990-09-13
JPH02281943A (en) 1990-11-19
CA2013255A1 (en) 1990-10-01
DE59004077D1 (en) 1994-02-17
EP0391245B1 (en) 1994-01-05
EP0391245A3 (en) 1991-04-24
US5101725A (en) 1992-04-07
JP2837222B2 (en) 1998-12-14

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