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EP0052195B1 - Boîte de couleurs pour une machine à imprimer - Google Patents

Boîte de couleurs pour une machine à imprimer Download PDF

Info

Publication number
EP0052195B1
EP0052195B1 EP81107252A EP81107252A EP0052195B1 EP 0052195 B1 EP0052195 B1 EP 0052195B1 EP 81107252 A EP81107252 A EP 81107252A EP 81107252 A EP81107252 A EP 81107252A EP 0052195 B1 EP0052195 B1 EP 0052195B1
Authority
EP
European Patent Office
Prior art keywords
ink
duct
main part
knife
roller
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
Application number
EP81107252A
Other languages
German (de)
English (en)
Other versions
EP0052195A1 (fr
Inventor
Josef Kraus
Erich Wech
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 EP0052195A1 publication Critical patent/EP0052195A1/fr
Application granted granted Critical
Publication of EP0052195B1 publication Critical patent/EP0052195B1/fr
Expired legal-status Critical Current

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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
    • B41F31/04—Ducts, containers, supply or metering devices with duct-blades or like metering devices

Definitions

  • the invention relates to an ink fountain for a printing press with an ink fountain roller forming the front boundary for it, an ink knife running in the direction of the axis of the ink fountain roller (1) and perpendicular to the axis of the ink fountain roller, the side walls adjoining the ink knife, each of which consists of a on the ink fountain crossmember attached main part and an attached to this with one of the curvature of the ink fountain roller jacket adapted face to the ink fountain roller adjustable front part.
  • an ink fountain for a printing machine of the type specified above has become known, in which the side walls perpendicular to the axis of the ink fountain roller are each equipped with a bearing shoe on the edges opposite the ink fountain roller, which has one of the curvatures the surface of the ink fountain roller rests elastically on it, so that changes in length of the ink fountain roller due to heating processes have no influence on the sealing points between the bearing shoes and the ink fountain roller.
  • changes in the length of the ink knife lead to sealing problems in this known ink fountain between the ends of the ink knife and the respective side wall.
  • the object of the invention is to provide an ink fountain with a radial ink fountain seal in which changes in length of the ink fountain roller and the ink knife do not cause any leaks.
  • the plate-shaped main part extending over the ink fountain depth in the front area adjacent to the ink knife has a recess in a plane parallel to the front side of the ink fountain roller, which is covered by the plate-shaped front part lying against its inside and against the ink fountain roller and that a seal arranged in the face of the main part facing the ink knife in a groove with its front end extending in the recess can be pressed against the front part by contact with the ink knife.
  • An advantage of the ink fountain seal according to the invention is the simple assembly, since no fitting, measuring or sealing work is required. Furthermore, due to differently tightened ink zone screws on the knife end areas, the knife, which may end up at the end, cannot lead to the formation of a gap, from which paint frequently escapes in known devices.
  • the seal according to the invention is thus insensitive to changes in length of ink fountain roller and ink knife, which often occur due to temperature differences.
  • the advantageous use and guidance of the seal results in an optimal lateral sealing of the ink fountain, since this seal rests on the ink knife over its entire length and therefore neither the main part nor the front part itself touches the ink knife.
  • Fig. 1 shows a side view of an ink fountain with an ink fountain roller 1, which forms its front boundary.
  • a cross member 2 side walls are attached on both sides, which are perpendicular to the axis of the ink fountain roller 1.
  • Each side wall consists of a main part 3, which extends over the entire depth of the ink fountain and a front part 4.
  • the front part 4 is in the front, i. H. arranged parallel to the ink fountain roller area on the inside of the main part 3.
  • the main part 3 can be fastened to the ink fountain cross member 2 by means of screws which are screwed into the threaded bores 5 and 6.
  • To screw the front part 4 to the main part 3 serve cylinder screws 7, 8, 9 and 10.
  • Between the side walls of the ink fountain a color knife 11 is arranged in a conventional manner, which is dimensioned in length so that its sides protrude beyond the front part 4 (Fig. 3).
  • the lower end face of the main part 3 facing the color knife 11 is provided with a preferably inclined groove 12.
  • a seal 13 is accommodated in this groove 12.
  • This seal 13 runs out of the main part 3 in the region near the ink fountain, since the main part 3 is provided with a recess B.
  • the seal 13 is pressed from the seal outlet 14 by a clamping piece 15, which is arranged in the recess B, against the front part 4.
  • screws 16, 17 are provided in the outer end jaws in through-threaded bores, which can preferably be tightened by hand so that a slight resistance can be felt. Excessive tightening should be avoided so as not to deform the front part 4 made of polyamide.
  • the main part 3 is about 1.5 mm from the front side C of the ink fountain roller 1 spaced while the front part 4 sits on the jacket of the ink fountain roller 1.
  • the height of the seal 13 is such that it is compressed over its entire length by screwing on the main part 3 by means of the screw 21, thereby ensuring the lateral seal.
  • the lower region of the front part 4, which lies in the triangle between ink fountain roller 1 and ink knife 11, is approximately wedge-shaped, its angle being somewhat smaller than the ink knife angle (arrow A).
  • the front part 4 is pressed against the jacket of the ink fountain roller 1 and rotated downward until the wedge tip touches the ink knife 11.
  • the front part 4 is screwed onto the main part 3. Since the seal 13 inserted in the main part 3 is exposed in the vicinity of the ink fountain roller area and seals against the front part 4, the gap caused by the different angles is also closed (wedge shape of the front part 4 and the knife angle), which means a further advantage.
  • the contact surface of the front part 4 on the ink fountain roller is preferably kept narrow in order to avoid congestion of thickened paint and not to be too dependent on the exact angularity of the end parts.
  • the contact surface is sharply chamfered in order to allow good removal of the ink film carried along by the ink fountain roller 1.
  • an exact seal is guaranteed regardless of changes in length of the ink knife 11 and the ink fountain roller 1.
  • the ink knife 11 can be supported by support elements, preferably in the form of screws.

Landscapes

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

Claims (6)

1. Encrier pour une machine à imprimer comprenant un cylindre d'encrier (1) formant la limite avant de cet encrier, une lame à encre (11) qui s'étend selon la direction de l'axe du cylindre d'encrier (1) et des parois latérales (3, 4), s'étendant perpendiculairement à l'axe du cylindre d'encrier (1), appuyées contre la lame à encre (11) et qui sont composées chacune d'une partie principale (3) fixée à la traverse (2) de l'encrier et d'une partie avant (4) fixée à la partie principale et qui peut être appliquée à joint étanche contre le cylindre d'encrier (1) par une surface frontale adaptée à la courbure de la paroi latérale du cylindre d'encrier, caractérisé en ce que la partie principale (3) en forme de plaque, qui s'étend sur la profondeur de l'encrier présente, dans la région avant, adjacente à la lame à encre (11), un évidement (B) situé dans un plan parallèle à la face frontale (C) du cylindre d'encrier (1) et qui est recouvert par la partie avant (4) en forme de plaque appliquée contre sa face intérieure et contre le cylindre d'encrier (1) et en ce qu'une garniture d'étanchéité (13) disposée dans une rainure (12), dans la face frontale de la partie principale (3) qui regarde la lame à encre (11), peut être pressée contre la partie avant (4) par son extrémité avant qui s'étend dans l'évidement (B), tout en s'appuyant contre la lame à encre (11).
2. Encrier selon la revendication 1, caractérisé en ce que la lame à encre (11) est plus longue que le cylindre d'encrier (1).
3. Encrier selon la revendication 1 ou 2, caractérisé en ce qu'une plaque de pression de la garniture d'étanchéité (18) peut être appliquée par vissage contre la surface frontale de la partie principale (3), qui s'étend perpendiculairement à la face frontale (C) du cylindre d'encrier (1) et déborde radialement sur le cylindre d'encrier (1).
4. Encrier selon l'une des revendications précédentes, caractérisé en ce que la rainure (12) s'étend dans la partie principale (1), obliquement vers l'intérieur en se dirigeant vers le cylindre d'encrier (1).
5. Encrier selon l'une des revendications précédentes, caractérisé en ce qu'un élément de serrage (15) est disposé dans l'évidement (B) pour presser la garniture d'étanchéité (13) contre la partie avant (4) au-dessus de la lame à encre (11
6. Encrier selon la revendication 5, caractérisé en ce que l'élément de serrage (15) peut être pressé contre la garniture d'étanchéité (13) par des vis (16, 17) guidées dans la partie principale (3).
EP81107252A 1980-11-15 1981-09-15 Boîte de couleurs pour une machine à imprimer Expired EP0052195B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19803043265 DE3043265C2 (de) 1980-11-15 1980-11-15 Farbkasten für eine Druckmaschine
DE3043265 1980-11-15

Publications (2)

Publication Number Publication Date
EP0052195A1 EP0052195A1 (fr) 1982-05-26
EP0052195B1 true EP0052195B1 (fr) 1984-07-04

Family

ID=6116956

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81107252A Expired EP0052195B1 (fr) 1980-11-15 1981-09-15 Boîte de couleurs pour une machine à imprimer

Country Status (2)

Country Link
EP (1) EP0052195B1 (fr)
DE (1) DE3043265C2 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4302671A1 (de) * 1993-01-30 1994-08-18 Roland Man Druckmasch Kurzfarbwerk
DE19734910A1 (de) * 1997-08-12 1999-02-18 Windmoeller & Hoelscher Rakelvorrichtung für ein Spülfarbwerk einer Rotationsdruckmaschine

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1162852B (de) * 1955-12-29 1964-02-13 Harris Intertype Corp Farbkasten fuer Druckmaschinen

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2221280A1 (fr) * 1973-03-16 1974-10-11 De La Rue Giori Sa
DD108492A1 (fr) * 1973-11-22 1974-09-20

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1162852B (de) * 1955-12-29 1964-02-13 Harris Intertype Corp Farbkasten fuer Druckmaschinen

Also Published As

Publication number Publication date
DE3043265C2 (de) 1982-10-21
EP0052195A1 (fr) 1982-05-26
DE3043265A1 (de) 1982-06-03

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