EP0687563B1 - Dispositif de lavage des organes d'encrage d'une machine d'impression rotative - Google Patents

Dispositif de lavage des organes d'encrage d'une machine d'impression rotative Download PDF

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Publication number
EP0687563B1
EP0687563B1 EP95108584A EP95108584A EP0687563B1 EP 0687563 B1 EP0687563 B1 EP 0687563B1 EP 95108584 A EP95108584 A EP 95108584A EP 95108584 A EP95108584 A EP 95108584A EP 0687563 B1 EP0687563 B1 EP 0687563B1
Authority
EP
European Patent Office
Prior art keywords
washing
distributor
inking
doctor blade
blade chamber
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
EP95108584A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0687563A2 (fr
EP0687563A3 (fr
Inventor
Juan Branas
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.)
Bobst Mex SA
Original Assignee
Bobst SA
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 Bobst SA filed Critical Bobst SA
Publication of EP0687563A2 publication Critical patent/EP0687563A2/fr
Publication of EP0687563A3 publication Critical patent/EP0687563A3/fr
Application granted granted Critical
Publication of EP0687563B1 publication Critical patent/EP0687563B1/fr
Anticipated expiration legal-status Critical
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F35/00—Cleaning arrangements or devices
    • B41F35/04—Cleaning arrangements or devices for inking rollers
    • 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
    • B41P2235/30—Recovering used solvents or residues
    • B41P2235/31—Recovering used solvents or residues by filtering

Definitions

  • the present invention relates to a device for washing the inking parts of a machine rotary printing, especially for washing the raster ink transfer cylinder, ink tank, the doctor blade chamber and the various pipes inking devices.
  • organ washing printing rotary printing machines is carried out in a manner well known to practitioners (see for example EP-A-0382347), by circulating water in the pipes of the inking circuit and in the doctor blade chamber by through the ink pump or using nozzles inside the rake chamber. This way of doing it cleans all the inking organs as well as the screened ink transfer cylinder.
  • some of these anchors, in particular especially the doctor blade chamber receive, on their external parts, ink splashes which do not will not be eliminated by this washing mode. It will take then clean them regardless of washing by circulation of water in the circuit pipes inking. This cleaning operation cannot be do that manually and takes a considerable time due to the complexity of the external forms of inking bodies. This state of the art comes from of the practice usually used by manufacturers of rotary printing machines and appearing on own catalogs or brochures to each of these manufacturers.
  • the object of the present invention is to offer a washing device that simplifies cleaning operations by removing all cleaning manual of rotary machine printing devices printing.
  • Figure 1 is a partial sectional view of the inking station 1 of a rotary machine flexographic printing including a cylinder plate holder 2 on which the ink is deposited by means of a screened ink transfer cylinder 3 of the type "Anilox".
  • a doctor blade chamber 4 is in contact with the screened ink transfer cylinder 3 when the machine is in the printing phase.
  • the doctor blade chamber 4 in the printing phase, is shown in phantom in 4a.
  • the doctor blade chamber 4 In the phase of washing the doctor blade chamber 4 will occupy the position shown in 4b.
  • the ink is brought to the doctor blade chamber 4 by a pipe connected to a pump (not shown) immersed in a ink tank usually placed outside of the inking station 1.
  • the doctor blade chamber 4 is fixed on a lever 6 pivoting around an axis 7 under the action of a pneumatic cylinder or any other actuator allowing this pivoting between positions 4a and 4b.
  • the washing device 8 is mounted between two side cheeks 9 and 10 guided in slides 11, 12.
  • the washing device 8 comprises a stirrup 13, between the arms of which is disposed a distributor 14 equipped with four nozzles 15, 16, 17 and 18.
  • the central nozzle 16 has a length greater than the other two nozzles 15 and 17.
  • This distributor 14 is mounted, so that it can pivot, between the arms of the stirrup 13.
  • the pivoting resistance of the distributor 14 is obtained by tightening the latter between the arms of the caliper 13 made of plastic.
  • the cleaning fluid is supplied by a fitting 19 placed at one end of the distributor 14, via a line 20.
  • the fluid cleaning can be pressurized water taken from network and whose pressure is limited within a range from two to four bars.
  • a cleaning fluid taken from a tank using a pump In this case, the cleaning can be a mixture of water and detergent.
  • Caliper 13 is attached to a pneumatic cylinder linear 21 fixed between the two side cheeks 9 and 10 on a crosspiece 30.
  • the washing device 8 can be moved from position 22 to position 23 under the effect of a pneumatic cylinder 24 anchored in the inking station frames and whose rod piston 25 is connected to the side cheeks 9 and 10.
  • the nozzles 15, 16 and 17 are directed downwards in direction of the doctor blade chamber 4 when the latter occupies position 4b while the nozzle 18, placed at the opposite end to the fluid supply from washing, is directed towards the screened cylinder of ink transfer.
  • the washing device 8 is guided, when moving from position 22 to the position 23, by the rollers 26 and 27 engaging in slides 11 and 12. During the washing phase, the cleaning fluid is collected by a tank of recovery 5 then evacuated by a pipe 28 to a purification plant before being put in the sewer.
  • the washing device 8 is closed, on its part opposite the doctor blade chamber in position 4a, by a protective plate 29 fixed to the two side cheeks 9 and 10.
  • FIG 2 is a view along A of Figure 1 in which we see the arrangement of the various components of the washing device 8. On this figure, only the left half of the wash 8 has been shown, its other half being perfectly symmetrical about the X axis. Au neighborhood of each end of the cylinder linear pneumatic 21, a stopper has been mounted cylindrical 31 fixed on a base 32 screwed against the cross 30.
  • the operation of cleaning the inking members is carried out as follows: We proceed first when rinsing the inking circuit, it is tell of the circuit bringing the ink to the doctor blade chamber 4, in a completely conventional manner in injecting cleaning fluid into the pump ink. This cleaning fluid will rinse the inside of the doctor blade chamber 4 in position 4a and also clean the screened ink transfer cylinder 3. Then, we will interrupt the arrival of the cleaning in the inking circuit, the pneumatic cylinders 24 so that the washing device 8 goes from position 22 to position 23, we will rotate the doctor blade chamber 4 of position 4a to position 4b then we will operate at again the pneumatic cylinders 24 so that that the washing device 8 comes again to occupy position 22.
  • the cleaning fluid will be injected into distributor 14 and the cylinder linear tire 21 will be actuated so that that the stirrup 13 carrying the distributor 14 is moved back and forth all over the length of doctor blade chamber 4. So every time nozzles 15, 16 and 17 will come into contact with the cylindrical stops 31 their orientation, by compared to the doctor blade chamber 4, will be modified.
  • the cleaning fluid will therefore be sprayed onto inside and over the entire surface of the room doctor blades 4 from two different angles which will ensure perfect cleaning of all surfaces of the doctor blade chamber 4 having been soiled by ink splashes.
  • the nozzle 18 will squirt cleaning fluid on the screened cylinder of ink transfer 3 which in this phase of cleaning, will be rotated.
  • a new and final period of blowing of compressed air will intervene and ink of a different color may be introduced in the inking system without any run the risk of seeing this ink contaminated by residues from ink, another color, previously used in the printing station.
  • the use of nozzles also has the advantage of ability to dose amount of cleaning fluid thus achieving substantial savings from this cleaning fluid which will constitute a contribution ecological appreciable when using the washing device which has just been described.

Landscapes

  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Ink Jet (AREA)
  • Drying Of Solid Materials (AREA)
  • Coloring (AREA)
  • Photographic Processing Devices Using Wet Methods (AREA)
EP95108584A 1994-06-17 1995-06-06 Dispositif de lavage des organes d'encrage d'une machine d'impression rotative Expired - Lifetime EP0687563B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH1916/94 1994-06-17
CH01916/94A CH690124A5 (fr) 1994-06-17 1994-06-17 Dispositif de lavage des organes d'encrage d'une machine d'impression rotative.

Publications (3)

Publication Number Publication Date
EP0687563A2 EP0687563A2 (fr) 1995-12-20
EP0687563A3 EP0687563A3 (fr) 1996-11-27
EP0687563B1 true EP0687563B1 (fr) 1999-03-10

Family

ID=4221586

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95108584A Expired - Lifetime EP0687563B1 (fr) 1994-06-17 1995-06-06 Dispositif de lavage des organes d'encrage d'une machine d'impression rotative

Country Status (14)

Country Link
US (1) US5564338A (ko)
EP (1) EP0687563B1 (ko)
JP (1) JP2843780B2 (ko)
KR (1) KR0162728B1 (ko)
CN (1) CN1036842C (ko)
AT (1) ATE177368T1 (ko)
AU (1) AU681275B2 (ko)
BR (1) BR9502820A (ko)
CA (1) CA2152000C (ko)
CH (1) CH690124A5 (ko)
DE (1) DE69508152T2 (ko)
DK (1) DK0687563T3 (ko)
ES (1) ES2130469T3 (ko)
TW (1) TW262434B (ko)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1762390A1 (fr) 2005-09-13 2007-03-14 Bobst S.A. Installation pour le changement de l'encre dans une station d'impression d'une imprimeuse flexographique

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4431711A1 (de) * 1994-09-06 1996-03-07 Bosch Gmbh Robert Vorrichtung zur Regelung der Leerlaufdrehzahl einer Brennkraftmaschine
GB2339722B (en) * 1998-07-17 2003-02-19 Armstrong World Ind Ltd Improvements in and relating to printing machines
IT1306450B1 (it) * 1998-11-03 2001-06-11 Tgc Srl Dispositivo per la pulizia della superficie esterna di cilindrirotanti e simili
US6196126B1 (en) 1999-01-12 2001-03-06 Intex Corporation Method and apparatus for preventing pigment buildup during a rotary screen printing process
JP4164644B2 (ja) * 2002-07-22 2008-10-15 株式会社日立メディコ Ｘ線画像診断装置
DE102008031140A1 (de) 2007-07-19 2009-01-22 Heidelberger Druckmaschinen Ag Vorrichtung und Verfahren zum Behandeln einer rotierenden drucktechnischen Oberfläche mit einer Prozessflüssigkeit
JP5529497B2 (ja) * 2009-11-05 2014-06-25 三菱重工印刷紙工機械株式会社 フレキソ印刷機のインキ洗浄方法及び装置

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3800702A (en) * 1972-12-07 1974-04-02 S & S Corrugated Paper Mach Inking apparatus having automatic wash-up means
US4271347A (en) * 1978-10-18 1981-06-02 The United States Of America As Represented By The Secretary Of The Treasury Method and apparatus for accelerating chemical reactions using a spread beam deflector with single or multiple reflectors
FR2587274B3 (fr) * 1985-09-16 1987-10-30 Mareels Gerard Dispositif antimaculant de transport de bande imprimee
US4686902A (en) * 1986-10-31 1987-08-18 Precision Engineered Systems Inc. Automatic blanket wash system
US5003876A (en) * 1989-02-10 1991-04-02 The Ward Machinery Company Printing apparatus with dual inking system
US5213044A (en) * 1990-11-30 1993-05-25 Como Technologies, Incorporated Method and apparatus for use in printing
DE4218211C2 (de) * 1991-06-06 1996-08-14 Roland Man Druckmasch Waschvorrichtung für einen Gummituchzylinder einer Druckmaschine
US5259313A (en) * 1991-12-20 1993-11-09 Heidelberg Harris Gmbh Method and apparatus for cleaning an inking mechanism and/or a printing mechanism in printing units of rotary printing machines
DE4221527C2 (de) * 1992-07-01 1994-08-04 Roland Man Druckmasch Vorrichtung zum Reinigen eines Walzenspaltes in Rotationsdruckmaschinen

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1762390A1 (fr) 2005-09-13 2007-03-14 Bobst S.A. Installation pour le changement de l'encre dans une station d'impression d'une imprimeuse flexographique
WO2007031293A1 (fr) 2005-09-13 2007-03-22 Bobst S.A. Installation pour le changement de l'encre dans une station d'impression d'une imprimeuse flexographique

Also Published As

Publication number Publication date
EP0687563A2 (fr) 1995-12-20
DK0687563T3 (da) 1999-09-27
AU681275B2 (en) 1997-08-21
KR960000510A (ko) 1996-01-25
DE69508152D1 (de) 1999-04-15
US5564338A (en) 1996-10-15
KR0162728B1 (ko) 1999-05-01
ATE177368T1 (de) 1999-03-15
CA2152000C (en) 1998-05-12
CN1122280A (zh) 1996-05-15
EP0687563A3 (fr) 1996-11-27
CH690124A5 (fr) 2000-05-15
BR9502820A (pt) 1996-01-16
CA2152000A1 (en) 1995-12-18
CN1036842C (zh) 1997-12-31
TW262434B (en) 1995-11-11
ES2130469T3 (es) 1999-07-01
JP2843780B2 (ja) 1999-01-06
AU2167495A (en) 1996-01-04
DE69508152T2 (de) 1999-07-22
JPH0811296A (ja) 1996-01-16

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