EP0829351B1 - Dispositif d'encrage - Google Patents

Dispositif d'encrage 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
Authority
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
Other languages
German (de)
English (en)
Other versions
EP0829351A3 (fr
EP0829351A2 (fr
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
Original Assignee
Koenig and Bauer 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 Koenig and Bauer AG filed Critical Koenig and Bauer AG
Publication of EP0829351A2 publication Critical patent/EP0829351A2/fr
Publication of EP0829351A3 publication Critical patent/EP0829351A3/fr
Application granted granted Critical
Publication of EP0829351B1 publication Critical patent/EP0829351B1/fr
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
    • B41F31/00—Inking arrangements or devices
    • B41F31/20—Ink-removing or collecting devices
    • 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
    • B41F31/07—Troughs 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)

Claims (18)

  1. Dispositif d'encrage pour une machine à imprimer rotative, équipé d'un encrier pour une encre, disposé au-dessous d'un cylindre à encrer, la longueur libre de l'espace d'accumulation d'encre, délimité par une paroi latérale gauche et une paroi latérale droite, de l'encrier pour une encre, étant inférieure à une longueur de corps de cylindre, et en ce que chacune des parois latérales présente un évidement tourné vers le cylindre, donnant un interstice, caractérisé en ce que par paroi latérale (23; 27 ou 24; 26 ou 23, 24; 26, 27) est prévu un joint d'étanchéité (32; 67), susceptible d'épouser la forme de la périphérie du cylindre (1), couvrant l'interstice (31), constitué d'une pluralité d'éléments individuels (45, 56; 47, 48; 71, 72) reliés entre eux, alignés en rangées les uns les autres.
  2. Dispositif d'encrage selon la revendication 1, caractérisé en ce que les parois latérales (23; 27 ou 24; 26 ou 23, 24; 26, 27) sont à paroi double.
  3. Dispositif d'encrage selon les revendications 1 et 2, caractérisé en ce que le joint d'étanchéité (32; 67) est disposé dans l'espace intermédiaire entre les parois (23, 24; 26, 27) des parois latérales (23; 27 ou 24; 26 ou 23, 24; 26, 27) à double paroi.
  4. Dispositif d'encrage selon la revendication 3, caractérisé en ce que le joint d'étanchéité (32; 67) est disposé à faible distance ou en établissant une liaison par frottement sur les parois latérales (23, 24 ou 26, 27).
  5. Dispositif d'encrage selon les revendications 1 à 4, caractérisé en ce que les parois latérales (23, 24; 26, 27) sont disposées de façon à être extractibles.
  6. Dispositif d'encrage selon les revendications 1 à 5, caractérisé en ce que le joint d'étanchéité (32; 67) est réalisé du genre d'une chaíne, qui présente une pluralité de pattes (38, 39; 45, 46 ou 71; 72) disposées les unes derrière les autres.
  7. Dispositif d'encrage selon les revendications 1 à 6, caractérisé en ce que le joint d'étanchéité (32) est constitué respectivement d'une pluralité de pattes (38; 39/45; 46) situées intérieurement/extérieurement, en ce que les pattes (38, 39/45; 46) sont disposées sur des boulons (36; 37), et en ce que les boulons (36; 37) sont enfilés sur un câble (34).
  8. Dispositif d'encrage selon la revendication 7, caractérisé en ce que les deux extrémités (43; 44) des pattes (38, 39; 45, 46) sont arrondies de façon convexe.
  9. Dispositif d'encrage selon la revendication 6, caractérisé en ce que les parties de patte (78, 79) des pattes (71; 72), sont arrondies avec une liaison par ajustement de forme, en s'engageant les unes dans les autres, en étant alignées les unes les autres.
  10. Dispositif d'encrage selon les revendications 6 à 9, caractérisé en ce que chaque patte (71; 72) présente deux perçages (73; 74) espacés l'un de l'autre, et en ce que les pattes (71; 72) sont reliées ensemble au moyen de boulons (77) .
  11. Dispositif d'encrage selon les revendications 1 à 10, caractérisé en ce que plusieurs joints d'étanchéité (67) sont prévus, parallèlement les uns à côté des autres.
  12. Dispositif d'encrage selon les revendications 1 à 11, caractérisé en ce que le joint d'étanchéité (32; 67) est réalisé à la façon d'une chaíne Galle.
  13. Dispositif d'encrage selon les revendications 1 à 8, caractérisé en ce que sur un élément individuel (48), du joint d'étanchéité (32), est disposé une racle (61) courte, éliminant du cylindre (1) par raclage une encre d'impression.
  14. Dispositif d'encrage selon les revendications 6 à 13, caractérisé en ce que les pattes (38, 39; 45, 46; 71, 72) sont réalisées chaque fois sur leur face supérieure (49), tournée vers le cylindre (1), de façon rectiligne ou dotée d'une incurvation concave.
  15. Dispositif d'encrage selon les revendications 1 à 14, caractérisé en ce que le joint d'étanchéité (32; 67) est réalisé en une matière synthétique.
  16. Dispositif d'encrage selon les revendications 1 à 15, caractérisé en ce que le joint d'étanchéité (32; 67) peut être tendu par ses extrémités (51; 54) contre la périphérie (29) du cylindre (1).
  17. Dispositif d'encrage selon les revendications 1 à 16, caractérisé en ce que le cylindre (1) est réalisé sous la forme de cylindre pour impression en héliogravure.
  18. Dispositif d'encrage selon les revendications 1 à 16, caractérisé en ce que le cylindre (1) est réalisé sous la forme de rouleau tramé d'un groupe d'encrage offset.
EP97115319A 1996-09-12 1997-09-04 Dispositif d'encrage Expired - Lifetime EP0829351B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19637046 1996-09-12
DE19637046A DE19637046C1 (de) 1996-09-12 1996-09-12 Farbwerk für eine Rotationsdruckmaschine

Publications (3)

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

Family

ID=7805348

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97115319A Expired - Lifetime EP0829351B1 (fr) 1996-09-12 1997-09-04 Dispositif d'encrage

Country Status (4)

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

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009039309B4 (de) 2009-08-31 2015-09-17 Kai Schneider Vorrichtung mit Dichtstrang, Vorrakel und Schmierung als Enddichtung zwischen Druckzylinder und Farbwanne einer Rotationsdruckmaschine
DE102020206778A1 (de) 2020-05-29 2021-12-02 Windmöller & Hölscher Kg Farbwerk einer Rotationsdruckmaschine

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1224327B (de) * 1963-03-28 1966-09-08 Albert Schnellpressen Farbkasten fuer Tiefdruckrotationsmaschinen
DE3043234A1 (de) * 1980-11-15 1982-07-01 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Farbkasten fuer eine druckmaschine
DE8034726U1 (de) * 1980-12-29 1981-05-27 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Vorrichtung zum trennen von bereichen des farbauftrags an farbkaesten fuer druckmaschinen
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 (de) * 1993-11-25 1996-07-25 Koenig & Bauer Albert Ag Tiefdruckfarbwerk

Also Published As

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

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