EP0687563A2 - Vorrichtung zum Waschen der Farborgane einer Rotationsdruckmaschine - Google Patents

Vorrichtung zum Waschen der Farborgane einer Rotationsdruckmaschine Download PDF

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Publication number
EP0687563A2
EP0687563A2 EP95108584A EP95108584A EP0687563A2 EP 0687563 A2 EP0687563 A2 EP 0687563A2 EP 95108584 A EP95108584 A EP 95108584A EP 95108584 A EP95108584 A EP 95108584A EP 0687563 A2 EP0687563 A2 EP 0687563A2
Authority
EP
European Patent Office
Prior art keywords
washing
distributor
inking
stirrup
doctor blade
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.)
Granted
Application number
EP95108584A
Other languages
English (en)
French (fr)
Other versions
EP0687563A3 (de
EP0687563B1 (de
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/de
Publication of EP0687563A3 publication Critical patent/EP0687563A3/de
Application granted granted Critical
Publication of EP0687563B1 publication Critical patent/EP0687563B1/de
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
    • 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 members of a rotary printing machine, in particular for washing the screened ink transfer cylinder, the ink tank, the doctor blade chamber and the various pipes of the inking bodies.
  • the object of the present invention is to provide a washing device which simplifies the cleaning operations by eliminating any manual cleaning of the printing members of the rotary printing machine.
  • Figure 1 is a partial sectional view of the inking station 1 of a rotary flexographic printing machine comprising a plate cylinder 2 on which the ink is deposited by means of a screened ink transfer cylinder 3 of the "Anilox" type.
  • 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 will occupy the position shown in 4b.
  • the ink is brought to the doctor blade chamber 4 by a line connected to a pump (not shown) immersed in an ink tank generally placed outside the inking station 1.
  • the doctor blade chamber 4 is fixed to a lever 6 pivoting about 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 lateral cheeks 9 and 10 guided in slides 11, 12.
  • the washing device 8 comprises a stirrup 13, between the arms of which is arranged a dispenser 14 equipped with four nozzles 15, 16, 17 and 18.
  • the central nozzle 16 to a greater length than the other two nozzles 15 and 17.
  • This distributor 14 is mounted, so as to be able to pivot, between the arms of the stirrup 13.
  • the resistance to pivoting of the distributor 14 is obtained by clamping it between the arms of the stirrup 13 made of plastic.
  • the cleaning fluid is supplied by a connector 19 placed at one end of the distributor 14, by a pipe 20.
  • the cleaning fluid can be pressurized water taken from the network and whose pressure is limited in a range of two to four bars.
  • the cleaning fluid can be a mixture of water and detergent.
  • the stirrup 13 is attached to a linear pneumatic cylinder 21 fixed between the two lateral cheeks 9 and 10 on a cross-member 30.
  • the washing device 8 can be moved from a position 22 to a position 23 under the effect of a pneumatic cylinder 24 anchored in the frames of the inking station and the piston rod 25 of which is connected to the lateral cheeks 9 and 10.
  • the nozzles 15, 16 and 17 are directed downwards towards the doctor blade chamber 4 when this occupies position 4b while the nozzle 18, placed at the end opposite to the supply of washing fluid, is directed towards the screened ink transfer cylinder.
  • the washing device 8 is guided, when it moves from position 22 to position 23, by the rollers 26 and 27 engaging in slides 11 and 12.
  • the cleaning fluid is collected by a recovery tank 5 and then evacuated by a pipe 28 to a purification installation 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 lateral cheeks 9 and 10.
  • FIG 2 is a view along A of Figure 1 in which we see the arrangement of the various elements making up the washing device 8.
  • the left half of the washing device 8 has been shown, its other half being perfectly symmetrical with respect to the axis X.
  • a cylindrical stop 31 has been mounted, fixed on a base 32 screwed against the cross-member 30.
  • the cleaning operation of the inking members is carried out as follows: Firstly, the inking circuit is rinsed, that is to say the circuit bringing the ink to the doctor blade chamber 4, with a completely conventional way by injecting a cleaning fluid into the ink pump. 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 fluid in the inking circuit, we actuate the pneumatic cylinders 24 so that the washing device 8 passes from position 22 to position 23, the doctor blade chamber 4 will be pivoted from position 4a to position 4b and then the cylinders will be actuated again tires 24 so that the washing device 8 again occupies position 22.
  • the cleaning fluid will be injected into the distributor 14 and the linear pneumatic cylinder 21 will be actuated so that the stirrup 13 carrying the distributor 14 is moved in a back and forth movement over all the length of the doctor blade chamber 4.
  • the cleaning fluid will therefore be sprayed onto the interior and over the entire surface of the doctor chamber 4 at two different angles, which will ensure perfect cleaning of all surfaces of the doctor chamber 4 that have been soiled by projections. ink.
  • the nozzle 18 will spray cleaning fluid onto the screened ink transfer cylinder 3 which, in this cleaning phase, will be driven in rotation.
  • the cleaning operation having ended, we can then introduce compressed air into the supply lines of the washing device 8, which will have the effect of drying the inking members and at the same time clear the nozzles 15 to 18 of any cleaning fluid residue and therefore will prevent scaling.
  • the drying of the inking members having been completed, the washing device will be raised to position 23, the doctor blade chamber 4 will be brought back to its position 4a corresponding to a new printing phase and then, the washing device 8 will resume position 22.
  • a new and final period of blowing of compressed air will occur and ink of a different color may be introduced into the circuit of the inking members without the risk of seeing this ink contaminated by residues from the ink, d another color, previously used in the printing station.
  • the use of nozzles also has the advantage of being able to dose the quantity of cleaning fluid, thereby achieving a substantial saving in this cleaning fluid, which will constitute an appreciable ecological contribution when using the washing device which has just been used. 'be described.

Landscapes

  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Drying Of Solid Materials (AREA)
  • Ink Jet (AREA)
  • Coloring (AREA)
  • Photographic Processing Devices Using Wet Methods (AREA)
EP95108584A 1994-06-17 1995-06-06 Vorrichtung zum Waschen der Farborgane einer Rotationsdruckmaschine Expired - Lifetime EP0687563B1 (de)

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 true EP0687563A2 (de) 1995-12-20
EP0687563A3 EP0687563A3 (de) 1996-11-27
EP0687563B1 EP0687563B1 (de) 1999-03-10

Family

ID=4221586

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95108584A Expired - Lifetime EP0687563B1 (de) 1994-06-17 1995-06-06 Vorrichtung zum Waschen der Farborgane einer Rotationsdruckmaschine

Country Status (14)

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

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7677175B2 (en) 2005-09-13 2010-03-16 Bobst S.A. Installation for changing ink in a printing station of a flexographic printer
US8033219B2 (en) 2007-07-19 2011-10-11 Heidelberger Druckmaschinen Aktiengesellschaft Apparatus and method for treating a rotating printing technology surface with a process liquid, machine for processing printing material and machine for treating printing forms

Families Citing this family (6)

* 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
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

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7677175B2 (en) 2005-09-13 2010-03-16 Bobst S.A. Installation for changing ink in a printing station of a flexographic printer
US8033219B2 (en) 2007-07-19 2011-10-11 Heidelberger Druckmaschinen Aktiengesellschaft Apparatus and method for treating a rotating printing technology surface with a process liquid, machine for processing printing material and machine for treating printing forms

Also Published As

Publication number Publication date
DE69508152T2 (de) 1999-07-22
EP0687563A3 (de) 1996-11-27
CA2152000A1 (en) 1995-12-18
TW262434B (en) 1995-11-11
DE69508152D1 (de) 1999-04-15
JP2843780B2 (ja) 1999-01-06
US5564338A (en) 1996-10-15
CN1122280A (zh) 1996-05-15
CH690124A5 (fr) 2000-05-15
ES2130469T3 (es) 1999-07-01
EP0687563B1 (de) 1999-03-10
JPH0811296A (ja) 1996-01-16
AU681275B2 (en) 1997-08-21
CN1036842C (zh) 1997-12-31
AU2167495A (en) 1996-01-04
DK0687563T3 (da) 1999-09-27
KR960000510A (ko) 1996-01-25
ATE177368T1 (de) 1999-03-15
BR9502820A (pt) 1996-01-16
CA2152000C (en) 1998-05-12
KR0162728B1 (ko) 1999-05-01

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