EP0829351A2 - Dispositif d'encrage - Google Patents

Dispositif d'encrage Download PDF

Info

Publication number: EP0829351A2
Authority: EP; European Patent Office
Prior art keywords: inking unit; unit according; cylinder; seal; tabs
Prior art date: 1996-09-12
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

EP97115319A

Other languages

German (de)

English (en)

Other versions

EP0829351A3 (fr

EP0829351B1 (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 Albert AG

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.)

1996-09-12

Filing date

1997-09-04

Publication date

1998-03-18

1997-09-04 Application filed by Koenig and Bauer Albert AG, Koenig and Bauer AG filed Critical Koenig and Bauer Albert AG

1998-03-18 Publication of EP0829351A2 publication Critical patent/EP0829351A2/fr

1998-11-11 Publication of EP0829351A3 publication Critical patent/EP0829351A3/fr

2000-06-28 Application granted granted Critical

2000-06-28 Publication of EP0829351B1 publication Critical patent/EP0829351B1/fr

2017-09-04 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Links

Images

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 press according to the preamble of claim 1.
the inside length of the ink tray is smaller than the bale length of the cylinder to be inked. This is to prevent ink from getting on the side parts of the cylinder.
the ink chamber is laterally delimited by two holding plates which have sealing disks pointing radially to an anilox roller with sealing ribs running in the circumferential direction.
the invention has for its object to provide an inking unit with which it is largely prevented that ink reaches areas that are outside the bale length of the cylinder to be inked required for printing.
a cylinder 1 to be colored e.g. B.
a forme cylinder of a rotogravure printing press is a by known means, for. B. a hydraulic device, not shown, height-adjustable inking ink tray 2 is arranged.
the cylinder 1 is by means of its shaft journal 3; 4 driven in side frames, not shown, and rotatably mounted about its axis of rotation 6.
a known impression roller, not shown, is arranged above the cylinder 1.
the ink tray 2 has on the inside on its bottom surface 7 and on the side walls 8; 9 near its end face 11; 12 two brackets 14, 16 running at right angles to the axis of rotation 6.
the holder 14 is in the vicinity of the end face 11 and the holder 16 is arranged in the vicinity of the end face 12.
You can z. B. consist of square section steel.
left side walls 23, 24 and right side walls 26, 27 can be fastened, 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 of the side walls 23, 24 and 26, respectively , 27 are thus positively connected to the holder 14 or 16.
the side walls 23, 24; 26, 27 can e.g. B. consist of sheet brass or plastic and are by Spacers, not shown, are spaced apart from one another approximately at a clear distance g.
the side walls 23, 24; 26, 27 can also be fixed to the brackets 14; 16 be connected.
the side walls 23, 24; 26, 27 have on their side facing the cylinder 1 to be colored a recess 28 with a radius r which is larger than a radius s of the cylinder 1.
a gap 31 thus arises between a circumference 29 of the cylinder 1 and the recess 28.
an elongated seal 32 which can be attached to the circumference 29 of the underside of the cylinder 1 is arranged.
the seal 32 is at a short distance, approximately one tenth of a millimeter, from each side wall 23 or 24; 26 or 27 or between the side walls 23, 24 or 26, 27 arranged frictionally.
the seals 32 are arranged in the inking-color trough 2 in such a way that a clear distance a between the seals 32 is smaller than a barrel length l of the cylinder 1.
an annular color-free remains at both ends of the cylinder 1
a color storage space 64 with a length o is formed between the left inner side wall 24 and the right inner side wall 26 and the side walls 8, 9.
the printing ink located in the ink storage space 64 has a level 33 such that the cylinder 1 to be inked is wetted on its underside.
Each between the end faces 11; 12 and the outer left and right side walls 23; 27 is a lateral overflow part 17; 18 formed for printing ink.
the inking ink tray 2 has an unillustrated ink supply and possibly several ink sequences.
the seal 32 consists of a solvent-resistant traction means, for. B. from a rope 34 made of plastic, for. B. nylon. On this rope 34 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 cable 34 at a distance e from each other, for. 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 such that the tab 38; 39 fit fit and captive on both sides of the bolt 36.
the tab 38; 39 is rounded at its two ends 43, 44 in a circular arc with a radius f.
the radius f corresponds to z. B. the distance d minus the radius of a bolt 36. Accordingly, each arc 43 of the tab 38; 39 on the circumference of the adjacent bolt 37.
Each bolt 37 adjacent to the bolt 36 on both sides has the same diameter n as the bolt 36 and also carries two tabs 45 on both sides of the bolt 37; 46.
the tabs 45; 46 are like the tabs 38; 39 trained and are at a distance g, z. B. 13 mm, fit and captive on the ends of the bolts 37 (g larger e).
Each bolt 36; 37 has a length h, z. B. from 15 mm.
the ends 43; 44 of the tabs 45; 46 approach the circumferences of the adjacent bolts 36 or the ends 43; 44 of the tabs 38; 39 approach the circumference of the bolts 37. As a result, they overlap or overlap at a clear distance i between two bolts 36; 37 two free tab ends 43; 44 opposing.
two tabs 38 pushed onto a bolt 36 on both sides form; 39 in connection with the rope 34 a sealing member 47 (inner member).
the tabs 45; 46 form a further sealing member 48 (outer member) with the rope 34.
the seal 32 accordingly consists of sealing members 47; 48.
the tabs 38, 39; 45, 46 of the seal 32 on its upper side 49, that is to say the side facing the cylinder 1, has a radius k which corresponds approximately to seven to eleven times the bolt spacing d.
the tabs 38, 39; 45, 46 of the sealing members 47; 48 each formed in a straight line on their top side 49 facing the cylinder 1.
the sealing members 47; 48 are also made of solvent-resistant and rubber-elastic or elastomeric material, eg. B. plastic, such as nylon or Delrin. Each sealing member 47; 48 has a height t which corresponds approximately to a bolt spacing d.
the seal 32 is arranged between the side walls 23, 24 and 26, 27 in the region of the recess 28.
a first end 51 of the seal 32 is attached to a bracket 52; 53 attached (bracket 52 not shown).
a second end 54 of the seal 32 is by means of the cable 34 via a z.
a counterforce acts in the form of a spring or a counterweight 58 that is fixed to the paint tray; 59.
the inking unit according to the invention works as described below.
Gravure ink that may have overflowed beforehand via the cutouts 28 in the side walls 23, 24 or 26, 27 is thereby overflowed by the overflow parts 17; 18 of the inking ink tray 2 collected.
the left and right outer side walls 23; 27 can in the immediate vicinity of the brackets 14; 16 have holes to possibly between the side walls 23, 24; 26, 27 accumulated ink to the overflow parts 17; 18 to derive.
the respective counterweight 58; 59 ensures that the seals 32 each rest with a uniform force on the circumference of the cylinder 1, regardless of the diameter of the cylinder 1.
the seal 32 on a tab 45 of an outer sealing member 48 can have a short doctor blade 61 directed in the direction of the cylinder 1, which doctor blade knife outside of the ink level 33 the printing ink accumulating in the vicinity of the seal 32.
the doctor blades 61 of the seals 32 face each other and are located within the clear distance a between the left and right side walls 23, 24; 26, 27.
the doctor blade 61 has a width m which corresponds approximately to a stud spacing d. It is possible for the side walls 23, 24; 26, 27 to be exchanged very quickly when these are arranged on the brackets 14; 16 are attached.
the elongated seal 32 can also consist of tabs, the underside of which is semicircular with a radius f.
seals can be used which are designed in the manner of a roller chain and preferably consist of plastic.
the seal 32 may be desirable for the seal 32 to have a small amount of fluid, e.g. H. e.g. B. gravure ink lets through to prevent the seal 32 from "running dry” and thus high wear.
a small amount of fluid e.g. H. e.g. B. gravure ink lets through to prevent the seal 32 from "running dry” and thus high wear.
Another possibility for preventing the seal 32 from running dry is to arrange spray nozzles which cover the protruding areas 62; 63 of the cylinder 1 with solvent z. B. for gravure ink, toluene, spray.
a seal 67 is also designed in the manner of a roller chain and has a number of identical sealing members 68 arranged one behind the other (FIGS. 6 and 7).
Each sealing member 68 consists of two tabs 71 arranged symmetrically to a longitudinal axis 69; 72.
Each tab 71; 72 has in the longitudinal axis direction 69 two bores 73; 74 on.
the tabs 71; 72 are spaced apart in pairs by means of spacers 76 and each by means of bolts 77 connected with each other.
Each tab 71; 72 is arranged in a fit and captive manner on the bolt 77.
the seal 67 has a width q and a height r.
the tabs 71; 72 are similar parts, but are arranged in mirror image to the longitudinal axis 69.
Each tab 71; 72 consists of two tab parts 78; 79 of the same shape.
Each tab part 78; 79 is concave on its first broad side 81 and convex on its second broad side 82.
a first broad side 81 of a second tab part 79 with a second broad side 82 of a first tab part 78 in a z. B. crescent-shaped area 83 overlaps and firmly connected (Fig. 6).

Landscapes

Inking, Control Or Cleaning Of Printing Machines (AREA)

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
DE19637046A DE19637046C1 (de)	1996-09-12	1996-09-12	Farbwerk für eine Rotationsdruckmaschine
DE19637046		1996-09-12

Publications (3)

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

1996
- 1996-09-12 DE DE19637046A patent/DE19637046C1/de not_active Expired - Fee Related
1997
- 1997-09-04 DE DE59701931T patent/DE59701931D1/de not_active Expired - Fee Related
- 1997-09-04 EP EP97115319A patent/EP0829351B1/fr not_active Expired - Lifetime
- 1997-09-10 JP JP9245439A patent/JP2878249B2/ja not_active Expired - Fee Related
- 1997-09-12 US US08/928,498 patent/US5875713A/en not_active Expired - Fee Related

Also Published As

Publication number	Publication date
EP0829351A3 (fr)	1998-11-11
EP0829351B1 (fr)	2000-06-28
US5875713A (en)	1999-03-02
DE59701931D1 (de)	2000-08-03
JPH1086339A (ja)	1998-04-07
JP2878249B2 (ja)	1999-04-05
DE19637046C1 (de)	1997-05-28

Legal Events

Date	Code	Title	Description
1998-01-30	PUAI	Public reference made under article 153(3) epc to a published international application that has entered the european phase	Free format text: ORIGINAL CODE: 0009012
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1998-12-09	RAP1	Party data changed (applicant data changed or rights of an application transferred)	Owner name: KOENIG & BAUER AKTIENGESELLSCHAFT
1999-07-07	17P	Request for examination filed	Effective date: 19990507
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2000-07-20	ITF	It: translation for a ep patent filed
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