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EP2881257B1 - Separated protection part of a liner designed for an ink-fountain - Google Patents

Separated protection part of a liner designed for an ink-fountain

Info

Publication number
EP2881257B1
EP2881257B1 EP14177575.9A EP14177575A EP2881257B1 EP 2881257 B1 EP2881257 B1 EP 2881257B1 EP 14177575 A EP14177575 A EP 14177575A EP 2881257 B1 EP2881257 B1 EP 2881257B1
Authority
EP
European Patent Office
Prior art keywords
film
pieces
ink fountain
protective film
piece
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.)
Active
Application number
EP14177575.9A
Other languages
German (de)
French (fr)
Other versions
EP2881257A1 (en
Inventor
Hubert Meyer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Heidelberger Druckmaschinen Intellectual Property AG and Co KG
Original Assignee
Heidelberger Druckmaschinen Intellectual Property AG and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Heidelberger Druckmaschinen Intellectual Property AG and Co KG filed Critical Heidelberger Druckmaschinen Intellectual Property AG and Co KG
Publication of EP2881257A1 publication Critical patent/EP2881257A1/en
Application granted granted Critical
Publication of EP2881257B1 publication Critical patent/EP2881257B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • B41F31/06—Troughs or like reservoirs with immersed or partly immersed, rollers or cylinders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F22/00—Means preventing smudging of machine parts or printed articles
    • 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
    • B41F31/04—Ducts, containers, supply or metering devices with duct-blades or like metering devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F35/00—Cleaning arrangements or devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2235/00—Cleaning
    • B41P2235/50—Selection of materials or products for cleaning

Definitions

  • Printing press ink fountains are lined with disposable film to facilitate cleaning. Some films cover only the bottom of the fountain. Others cover both the bottom and the sides of the fountain.
  • Such a film is in JP3933247 B2
  • This prior art film consists of a single piece and has a rectangular section for the ink fountain base and triangular sections for the side walls. When the film is inserted into the ink fountain, its triangular side wall sections are bent upward from the square bottom section.
  • connection of the floor section with the side wall sections via the kinks is unfavorable with regard to the production and function of the film: This connection results in complex cutting lines when punching out the film and requires a complex punching tool. This connection also results in a lack of functional reliability. If the film is not folded precisely along the fold lines or is not positioned precisely in the ink fountain, a gap can appear between the film and the side walls, into which ink can penetrate. This danger is particularly evident in the corners between the side walls and the ink fountain base.
  • the invention is based on the object of creating an ink fountain lining that is easy to manufacture and functionally reliable.
  • FIG. 1 A set of film pieces is shown, consisting of three separate pieces.
  • the set of film pieces includes a base film piece 4, which is essentially square.
  • the set of film pieces includes two protective film pieces 5, 6, which are mirror-symmetrical to one another and each of which has a substantially triangular cutting line 12.
  • Figure 2 1 shows an ink fountain 1 with an ink fountain base 2 and a side wall 3.
  • the ink fountain 1 has another side wall at its other end, which is not shown in the drawing.
  • the ink stored in the ink fountain 1 is located in a space defined by the two side walls, the base 2, and an ink fountain roller against which the ink fountain 1 rests.
  • the ink fountain roller is not shown in the drawing.
  • the ink fountain is lined with the bottom film piece 4 and the two protective film pieces 5, 6.
  • the bottom film piece 4 covers the bottom 2 and the protective film piece 6 covers the inner surface of the side wall 3.
  • the protective film piece 6 ( Figure 1 ) covers the inner surface of the other side wall, which is not shown in the drawing.
  • the protective film piece 5 has a lower cut edge 7, which runs parallel to the bottom 2 of the ink fountain 1.
  • the cut edge 7 is part of the cutting line 12.
  • the protective film piece 5 has an upper folding line 8, depending on the installation or use, at which a strip-shaped section of the protective film piece 5 is bent.
  • the strip-shaped section is bent along the folding line 8 at a right angle to the remaining protective film piece 5 and is in Figure 1 not visible.
  • the strip-shaped section is a clamping section 9, which, depending on the installation or use, rests on a roof surface 10 of the covered side wall 3 and is pressed against the roof surface 10 by at least one clamping screw 11.
  • the cutting line for the base film piece 4 is square and thus comparatively simple, and the punching tool used to punch out the base film piece 4 or cut it from roll material already cut to the appropriate width is correspondingly simple and cost-effective.
  • the cutting lines 12 of the two protective film pieces 5, 6 are somewhat more complicated than those for the base film piece 4, they are relatively easy to produce due to the comparatively small size of the protective film pieces 5, 6.
  • a further advantage of the film piece set is that, due to the separation of the protective film pieces 5, 6 from the base film piece 4, tensions in the base film piece 4 are not transferred to the protective film pieces 5, 6. For example, the often unavoidable bulging of the base film piece 4 is not transferred to the protective film pieces 5, 6.

Landscapes

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

Description

Die vorliegende Erfindung betrifft die Auskleidung eines Farbkastens einer Druckmaschine.The present invention relates to the lining of an ink fountain of a printing press.

Farbkästen von Druckmaschinen werden mit Wegwerffolien ausgekleidet, um die Reinigung zu erleichtern. Manche Folien bedecken nur den Farbkastenboden. Es gibt aber auch Folien, die sowohl den Boden als auch die Seitenwände des Farbkastens bedecken.Printing press ink fountains are lined with disposable film to facilitate cleaning. Some films cover only the bottom of the fountain. Others cover both the bottom and the sides of the fountain.

Eine solche Folie ist in JP3933247 B2 beschrieben. Diese Folie des Standes der Technik besteht aus einem einzigen Stück und hat einen rechteckigen Abschnitt für den Farbkastenboden und dreieckige Abschnitte für die Seitenwände. Wenn die Folie in den Farbkasten eingesetzt ist, sind ihre dreieckigen Seitenwandabschnitte vom viereckigen Bodenabschnitt nach oben abgeknickt.Such a film is in JP3933247 B2 This prior art film consists of a single piece and has a rectangular section for the ink fountain base and triangular sections for the side walls. When the film is inserted into the ink fountain, its triangular side wall sections are bent upward from the square bottom section.

Die Verbindung des Bodenabschnitts mit den Seitenwandabschnitten über die Knickstellen ist hinsichtlich der Herstellung und der Funktion der Folie ungünstig:
Durch die Verbindung ergeben sich ein komplexer Schnittlinienverlauf beim Ausstanzen der Folie und ein aufwändiges Stanzwerkzeug. Durch die Verbindung ergibt sich auch eine geringe Funktionssicherheit. Wenn die Folie nicht genau an den Knicklinien geknickt wird oder im Farbkasten nicht genau platziert wird, kann zwischen der Folie und den Seitenwänden ein Spalt klaffen, in den Farbe hinein gelangen kann. Diese Gefahr besteht besonders im Bereich der Ecken zwischen den Seitenwänden und dem Farbkastenboden.The connection of the floor section with the side wall sections via the kinks is unfavorable with regard to the production and function of the film:
This connection results in complex cutting lines when punching out the film and requires a complex punching tool. This connection also results in a lack of functional reliability. If the film is not folded precisely along the fold lines or is not positioned precisely in the ink fountain, a gap can appear between the film and the side walls, into which ink can penetrate. This danger is particularly evident in the corners between the side walls and the ink fountain base.

Der Erfindung liegt die Aufgabe zugrunde, eine einfach herstellbare und funktionssichere Farbkastenauskleidung zu schaffen.The invention is based on the object of creating an ink fountain lining that is easy to manufacture and functionally reliable.

Diese Aufgabe wird durch einen Folienstücke-Satz nach Anspruch 1 und eine Kombination nach Anspruch 6 gelöst.This object is achieved by a set of foil pieces according to claim 1 and a combination according to claim 6.

Vorteilhafte Weiterbildungen sind in den Unteransprüchen genannt und ergeben sich aus der nachfolgenden Beschreibung eines Ausführungsbeispiels und der dazugehörigen Zeichnung.Advantageous further developments are mentioned in the subclaims and result from the following description of an embodiment and the associated drawing.

In dieser zeigt:

Figur 1:
einen Folienstücke-Satz,
Figur 2:
den Folienstücke-Satz in einem Farbkasten in einer Schnittdarstellung und
Figur 3:
den Folienstücke-Satz in dem Farbkasten in einer dreidimensionalen Darstellung.
In this shows:
Figure 1:
a set of foil pieces,
Figure 2:
the foil pieces set in a color box in a sectional view and
Figure 3:
the set of foil pieces in the color box in a three-dimensional representation.

In Figur 1 ist ein Folienstücke-Satz dargestellt, welcher aus drei voneinander getrennten Stücken besteht. Der Folienstücke-Satz umfasst ein Bodenfolienstück 4, das im Wesentlichen viereckig ist. Außerdem umfasst der Folienstücke-Satz zwei zueinander spiegelsymmetrisch ausgebildete Schutzfolienstücke 5, 6, von denen jedes eine im Wesentlichen dreieckige Zuschnitt-Linie 12 hat.In Figure 1 A set of film pieces is shown, consisting of three separate pieces. The set of film pieces includes a base film piece 4, which is essentially square. Furthermore, the set of film pieces includes two protective film pieces 5, 6, which are mirror-symmetrical to one another and each of which has a substantially triangular cutting line 12.

In Figur 2 ist ein Farbkasten 1 mit einem Farbkastenboden 2 und einer Seitenwand 3 dargestellt. Der Farbkasten 1 hat außer der Seitenwand 3 an seinem anderen Ende eine weitere Seitenwand, welche zeichnerisch nicht dargestellt ist. Zwischen den beiden Seitenwänden befindet sich die im Farbkasten 1 gespeicherte Farbe in einem Raum, welcher durch die beiden Seitenwände, den Boden 2 und eine Farbkastenwalze begrenzt wird, an der der Farbkasten 1 anliegt. Die Farbkastenwalze ist zeichnerisch nicht dargestellt.In Figure 2 1 shows an ink fountain 1 with an ink fountain base 2 and a side wall 3. In addition to the side wall 3, the ink fountain 1 has another side wall at its other end, which is not shown in the drawing. Between the two side walls, the ink stored in the ink fountain 1 is located in a space defined by the two side walls, the base 2, and an ink fountain roller against which the ink fountain 1 rests. The ink fountain roller is not shown in the drawing.

Der Farbkasten ist mit dem Bodenfolienstück 4 und den beiden Schutzfolienstücken 5, 6 ausgekleidet. Das Bodenfolienstück 4 bedeckt den Boden 2 und das Schutzfolienstück 6 bedeckt die Innenfläche der Seitenwand 3. Das Schutzfolienstück 6 (Figur 1) bedeckt die Innenfläche der anderen Seitenwand, welche zeichnerisch nicht dargestellt ist.The ink fountain is lined with the bottom film piece 4 and the two protective film pieces 5, 6. The bottom film piece 4 covers the bottom 2 and the protective film piece 6 covers the inner surface of the side wall 3. The protective film piece 6 ( Figure 1 ) covers the inner surface of the other side wall, which is not shown in the drawing.

In Figur 3 ist zu erkennen, dass das Schutzfolienstück 5 eine einbau- oder verwendungsgemäß untere Schnittkante 7 hat, die parallel mit dem Boden 2 des Farbkastens 1 verläuft. Die Schnittkante 7 ist Bestandteil der Zuschnitt-Linie 12.In Figure 3 It can be seen that the protective film piece 5 has a lower cut edge 7, which runs parallel to the bottom 2 of the ink fountain 1. The cut edge 7 is part of the cutting line 12.

Außerdem hat das Schutzfolienstück 5 eine einbau- oder verwendungsgemäß obere Knicklinie 8, an der ein streifenförmiger Abschnitt des Schutzfolienstücks 5 abgeknickt ist. Der streifenförmige Abschnitt ist entlang der Knicklinie 8 im rechten Winkel von dem übrigen Schutzfolienstück 5 abgeknickt und ist in Figur 1 nicht zu sehen. Bei dem streifenförmigen Abschnitt handelt es sich um einen Klemmabschnitt 9, welcher einbau- oder verwendungsgemäß auf einer Dachfläche 10 der abgedeckten Seitenwand 3 aufliegt und durch mindestens eine Klemmschraube 11 gegen die Dachfläche 10 gedrückt wird.In addition, the protective film piece 5 has an upper folding line 8, depending on the installation or use, at which a strip-shaped section of the protective film piece 5 is bent. The strip-shaped section is bent along the folding line 8 at a right angle to the remaining protective film piece 5 and is in Figure 1 not visible. The strip-shaped section is a clamping section 9, which, depending on the installation or use, rests on a roof surface 10 of the covered side wall 3 and is pressed against the roof surface 10 by at least one clamping screw 11.

Ein Vorteil des Folienstücke-Satzes besteht in der Einfachheit der Zuschnitt-Linien der Stücke 4, 5, 6 des Folienstücke-Satzes. Die Zuschnitt-Linie des Bodenfolienstücks 4 ist viereckig und somit vergleichsweise einfach, und dementsprechend einfach und kostengünstig ist das Stanzwerkzeug, mit welchem das Bodenfolienstück 4 ausgestanzt wird oder von bereits auf entsprechende Breite konfektioniertem Rollenmaterial abgeschnitten wird. Die Zuschnitt-Linien 12 der beiden Schutzfolienstücke 5, 6 sind zwar etwas komplizierter als jene des Bodenfolienstücks 4, jedoch aufgrund der vergleichsweise geringen Größe der Schutzfolienstücke 5, 6 relativ einfach herstellbar.One advantage of the film piece set is the simplicity of the cutting lines for pieces 4, 5, and 6 of the film piece set. The cutting line for the base film piece 4 is square and thus comparatively simple, and the punching tool used to punch out the base film piece 4 or cut it from roll material already cut to the appropriate width is correspondingly simple and cost-effective. Although the cutting lines 12 of the two protective film pieces 5, 6 are somewhat more complicated than those for the base film piece 4, they are relatively easy to produce due to the comparatively small size of the protective film pieces 5, 6.

Ein weiterer Vorteil des Folienstücke-Satzes besteht darin, dass aufgrund der Trennung der Schutzfolienstücke 5, 6 vom Bodenfolienstück 4 sich Verspannungen des Bodenfolienstücks 4 nicht auf die Schutzfolienstücke 5, 6 übertragen. Beispielsweise überträgt sich ein in vielen Fällen nicht zu vermeidendes Aufwölben des Bodenfolienstücks 4 nicht auf die Schutzfolienstücke 5, 6.A further advantage of the film piece set is that, due to the separation of the protective film pieces 5, 6 from the base film piece 4, tensions in the base film piece 4 are not transferred to the protective film pieces 5, 6. For example, the often unavoidable bulging of the base film piece 4 is not transferred to the protective film pieces 5, 6.

Auch die Anforderungen an die Maßgenauigkeit bei der Fertigung des Bodenfolienstücks 4 sind aufgrund der Stücketrennung geringer, weil im Bereich der Schnittkanten 7 ein Ausgleich von Fertigungsungenauigkeiten möglich ist. Somit können maßliche Ungenauigkeiten des Bodenfolienstücks 4 nicht zu Lageungenauigkeiten der Schutzfolienstücke 5, 6 führen. Weder die Verspannungen des Bodenfolienstückes 4 noch dessen maßliche Ungenauigkeiten können dazu führen, dass die Schutzfolienstücke 5, 6 nicht in ihrer korrekten Position eng an den Innenflächen der Seitenwände anliegen. Dies ist besonders für den Bereich des Eckwinkels zwischen der jeweiligen Seitenwand 3 und dem Boden 2 erforderlich, wo sich die Schnittkante 7 befindet.The requirements for dimensional accuracy during the production of the floor film piece 4 are also lower due to the piece separation, because it is possible to compensate for manufacturing inaccuracies in the area of the cut edges 7. Thus, dimensional inaccuracies of the floor film piece 4 cannot lead to positional inaccuracies of the protective film pieces 5, 6. Neither the tensions of the floor film piece 4 nor Its dimensional inaccuracies can result in the protective film pieces 5, 6 not being correctly positioned and tightly fitting against the inner surfaces of the side walls. This is particularly important for the area of the corner angle between the respective side wall 3 and the base 2, where the cutting edge 7 is located.

BezugszeichenlisteList of reference symbols

11
Farbkastenpaint box
22
BodenFloor
33
Seitenwandside wall
44
Bodenfolienstückpiece of floor foil
55
Schutzfolienstückpiece of protective film
66
Schutzfolienstückpiece of protective film
77
Schnittkantecutting edge
88
Knickliniecrease line
99
Klemmabschnittclamping section
1010
Dachflächeroof area
1111
Klemmschraubeclamping screw

Claims (6)

  1. A set of film pieces comprising two pieces of protective film (5, 6), each designed to cover the inner surface of only one (3) of the two side walls of an ink fountain (1) of a planographic offset printing press, wherein each of said pieces of protective film (5, 6) has an essentially triangular cut line (12) and is, in the installed or in-use state, configured to cover a different one of the two side walls of the ink fountain (1).
  2. The set of film pieces according to claim 1, wherein each of the pieces of protective film (5, 6) has, in the installed or in-use state, a lower cut edge (7) that runs parallel to a bottom (2) of the ink fountain (1).
  3. The set of film pieces according to claim 1, wherein each of the pieces of protective film (5, 6) has, in the installed or in-use state, an upper crease line (8), at which a strip-shaped section of the piece of protective film is bent.
  4. The set of film pieces according to claim 3, wherein the strip-shaped section is a clamping section (9) which, in the installed or in-use state, rests on a roof surface (10) of the covered side wall (3) and is pressed against the roof surface (10) by at least one clamping screw (11).
  5. The set of film pieces according to any one of claims 1 to 4, further comprising a bottom film piece (4) configured to cover a bottom (2) of the ink fountain (1).
  6. A combination comprising an ink fountain (1) of a planographic printing press and a set of film pieces according to any one of claims 1 to 5.
EP14177575.9A 2013-12-06 2014-07-18 Separated protection part of a liner designed for an ink-fountain Active EP2881257B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202013011058 2013-12-06
DE202014002641 2014-03-26

Publications (2)

Publication Number Publication Date
EP2881257A1 EP2881257A1 (en) 2015-06-10
EP2881257B1 true EP2881257B1 (en) 2025-07-16

Family

ID=51212707

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14177575.9A Active EP2881257B1 (en) 2013-12-06 2014-07-18 Separated protection part of a liner designed for an ink-fountain

Country Status (1)

Country Link
EP (1) EP2881257B1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105904847A (en) * 2016-04-14 2016-08-31 上海烟草集团有限责任公司 Ink fountain liner of offset press and folding method of ink fountain liner
DE102024107229A1 (en) * 2024-03-14 2025-09-18 Rkw Se Splash guard device for web-fed rotary printing presses

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20312668U1 (en) * 2003-08-16 2003-11-13 Roland Man Druckmasch Ink duct separation
DE202006011283U1 (en) * 2006-07-21 2006-09-21 Man Roland Druckmaschinen Ag Method for dividing the ink reservoir in an offset printing press using separating plates secured by a sprung ratchet

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3318239A (en) * 1964-10-29 1967-05-09 Handcraft Co Ink fountain liner and installation means therefor
DE2711553A1 (en) * 1977-03-17 1978-09-21 Heidelberger Druckmasch Ag INKBOX FOR OFFSET OR HIGH PRINTING MACHINES
DE4315595C2 (en) * 1993-05-11 1995-02-16 Roland Man Druckmasch Use for wedge ink boxes of printing machines
JP3933246B2 (en) * 1997-04-07 2007-06-20 大日本印刷株式会社 Inkwell cover film
JP3933247B2 (en) 1997-04-07 2007-06-20 大日本印刷株式会社 Inkwell cover film
CA2300283C (en) * 1999-03-31 2005-10-25 Mitsubishi Heavy Industries, Ltd. Ink supply apparatus for printing press and ink tray mounted on the same apparatus, and method for mounting contamination preventive surface cover to ink tray

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20312668U1 (en) * 2003-08-16 2003-11-13 Roland Man Druckmasch Ink duct separation
DE202006011283U1 (en) * 2006-07-21 2006-09-21 Man Roland Druckmaschinen Ag Method for dividing the ink reservoir in an offset printing press using separating plates secured by a sprung ratchet

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