EP0025806A1 - Dispositif de nettoyage du blanchet - Google Patents

Dispositif de nettoyage du blanchet Download PDF

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Publication number
EP0025806A1
EP0025806A1 EP79103639A EP79103639A EP0025806A1 EP 0025806 A1 EP0025806 A1 EP 0025806A1 EP 79103639 A EP79103639 A EP 79103639A EP 79103639 A EP79103639 A EP 79103639A EP 0025806 A1 EP0025806 A1 EP 0025806A1
Authority
EP
European Patent Office
Prior art keywords
washing
washing liquid
nozzle bar
liquid
pump
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
EP79103639A
Other languages
German (de)
English (en)
Other versions
EP0025806B1 (fr
Inventor
Werner Frei
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.)
Baldwin Gegenheimer GmbH
Original Assignee
Baldwin Gegenheimer GmbH
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 Baldwin Gegenheimer GmbH filed Critical Baldwin Gegenheimer GmbH
Priority to EP79103639A priority Critical patent/EP0025806B1/fr
Publication of EP0025806A1 publication Critical patent/EP0025806A1/fr
Application granted granted Critical
Publication of EP0025806B1 publication Critical patent/EP0025806B1/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
    • B41F35/00—Cleaning arrangements or devices
    • B41F35/06—Cleaning arrangements or devices for offset cylinders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
    • B05B15/50—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter
    • B05B15/55—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter using cleaning fluids
    • 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
    • B41P2235/10—Cleaning characterised by the methods or devices
    • B41P2235/20—Wiping devices
    • B41P2235/23—Brushes

Definitions

  • the invention relates to a rubber blanket washing device with a wash cloth that can be placed on the rubber blanket and can be conveyed step by step, and which can be moistened by means of a nozzle bar which can be supplied with washing liquid by at least one pump.
  • the nozzle bar is supplied with washing liquid by a high-pressure pump in such a way that it is always present at the spray nozzles and flows out through the pump during operation.
  • a high-pressure pump in such a way that it is always present at the spray nozzles and flows out through the pump during operation.
  • an exact dosage of the amount of liquid dispensed by the spray nozzles is practically impossible to achieve in arrangements of this type.
  • This object is achieved in a surprisingly simple manner according to the invention in that a precisely predeterminable dose of washing liquid can be introduced into the nozzle bar at least once during each work cycle and that the nozzle bar can be connected to a compressed air source for blowing out the received washing liquid dose after such an exposure .
  • a washing liquid composed of several, sometimes very aggressive, components.
  • this can be achieved in a simple manner in that a pump is provided for each component, which is preferably connected via a liquid line secured by a non-return valve to a common supply nozzle of the nozzle bar, to which is simultaneously secured by a non-return valve compressed air line ISTL connected within the sometimes very lam g s liquid line while no mixing takes place in an advantageous manner.
  • washing liquid pump or pumps is designed as a piston pump with an adjustable stroke. This enables a precisely defined funding volume to be achieved with an adaptation to the Beddrf that is still guaranteed
  • the rubber cylinder of an offset printing machine is indicated at 1, of a type known per se, to which a washing device, designated as a whole by 2, is assigned.
  • This has a frame which is delimited by lateral end shields 3 and is pivotably suspended in the printing press frame.
  • the washing device 2 works with a washing cloth 4, which can be gradually wound up from a storage drum 5 and onto a take-up drum 6.
  • the washing cloth 4 is guided via a blanket cylinder 1 opposite, here made as a brush roller platen roller 7, the can be adjusted to the rubber cylinder 1 by pivoting the frame delimited by the end shields 3.
  • the brush roller 7 abuts a trough-shaped support plate 9 approximately diametrically opposite the contact zone 8.
  • a nozzle bar 11 with spray nozzles 10 is provided, which is expediently arranged within the space delimited by the washing cloth 4 and is thus practically encapsulated by the washing cloth 4 itself, which provides excellent protection of the neighboring machine parts against moistening by the Spray nozzles 10 offers. At the same time, this ensures that the washcloth 4 can simply be inserted in the form of an envelope when changing the washcloth.
  • guide cross members 12 and 13 are provided here, which can be connected to the side bearing plates 2 to form a stable frame.
  • the guide crossbeam 12 also serves as a receptacle for the nozzle baffle 11 and as a receptacle for washing liquid which may drip off.
  • the nozzle bar 11 is provided with a supply connection 14 which, as in the exemplary embodiment shown, can be branched over its entire width to ensure uniform application of the nozzle bar.
  • a compressed air line 15 connected to a compressed air source and at least one, in the exemplary embodiment shown, two liquid lines which can be acted upon by an associated pump 16 each open into the supply connection 14 17 a.
  • Each strand 17 is assigned to a specific washing liquid component. For example, the strand of water shown on the right in FIG. 2 and the strand shown on the left should carry an additive for detergent.
  • the pumps 16 are expediently designed as piston pumps in order to achieve precise meterability of the washing liquid supplied to the nozzle bar 11.
  • these are so-called suction and pressure pumps, each of which is connected to the assigned water tank 19 or the assigned detergent additive tank 20 with a suitable suction line 18.
  • the check valves of the pumps are indicated at 21.
  • the compressed air line 15 is here simply connected to a compressed air network indicated by the ring line 22. In the area of their connection to the supply nozzle 14, the compressed air line 15 and the liquid lines 17 are each secured by a check valve 23, so that any contamination is avoided.
  • the supply nozzle 14 and the nozzle bar 11 provided therewith have a certain capacity for washing liquid, for example in the form of the collecting space 24 indicated here in dashed lines, to which all the spray nozzles are connected.
  • a predetermined amount of liquid is now introduced into the nozzle bar 11 as a function of the gradual further transport of the washcloth 4 by corresponding actuation of the pumps 16.
  • the pumps 16 are each to perform one stroke for this purpose.
  • the stroke size of the pumps 16 is expediently adjustable, which is a precise adjustment of the pump stroke to the respective fluid requirements. So that no liquid can escape through the spray nozzles 10 when the nozzle bar 11 is acted upon, the maximum joint stroke volume of all pumps 16 should be less than the capacity of the nozzle bar 11 and of the supply nozzle 14 reaching as far as the check valves.
  • the compressed air line 15 is now activated and the reservoir formed by the capacity of the nozzle bar and the supply connection connected therewith is emptied by the inflowing compressed air.
  • a valve 25 is provided in the compressed air line 15, which is controlled by means of a control device (not shown here) in such a way that the compressed air line 15 is activated as soon as the pumps 16 have ended their stroke.
  • the pumps 16 are pneumatically actuated, control slides 27 being provided in the drive line 26 leading to the ring line 22, which are controlled via the control device (not shown here) in such a way that the pumps 16 and thus the liquid strands 17 run counter to the compressed air line 15 activated or passivated.
  • One spray cycle of the type described above is normally sufficient per wash cloth step. If more washing liquid is required, two or more spray cycles can also be provided per step.
  • the nozzle bar 11 can only be pressurized with compressed air.
  • the pumps 16 are simply shut down and the valve 25 is held in the open position by a suitable control pulse.

Landscapes

  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Treatment Of Fiber Materials (AREA)
EP79103639A 1979-09-25 1979-09-25 Dispositif de nettoyage du blanchet Expired EP0025806B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP79103639A EP0025806B1 (fr) 1979-09-25 1979-09-25 Dispositif de nettoyage du blanchet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP79103639A EP0025806B1 (fr) 1979-09-25 1979-09-25 Dispositif de nettoyage du blanchet

Publications (2)

Publication Number Publication Date
EP0025806A1 true EP0025806A1 (fr) 1981-04-01
EP0025806B1 EP0025806B1 (fr) 1983-05-25

Family

ID=8186200

Family Applications (1)

Application Number Title Priority Date Filing Date
EP79103639A Expired EP0025806B1 (fr) 1979-09-25 1979-09-25 Dispositif de nettoyage du blanchet

Country Status (1)

Country Link
EP (1) EP0025806B1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU614794B2 (en) * 1988-09-13 1991-09-12 Nikka Kabushiki Kaisha Cleaning apparatus and method of cleaning a blanket cylinder of a printing press
WO1995007182A1 (fr) * 1993-09-08 1995-03-16 Jimek International Ab Tube de pulverisation pour dispositif de lavage de blanchet d'une presse d'impression
EP0572391B1 (fr) * 1990-03-06 1995-10-18 BERNTSSON, Reinhold Systeme situe au niveau d'une mouilleuse a pulverisation
DE10030027A1 (de) * 2000-06-17 2001-12-20 Baldwin Grafotec Gmbh Waschvorrichtung für Druckmaschinenzylinder
EP1642717A1 (fr) * 2004-10-01 2006-04-05 Technotrans AG Dispositif de nettoyage de surfaces de cylindres dans une machine d'impression

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004011861A1 (de) * 2004-03-11 2005-09-29 Koenig & Bauer Ag Reinigungsvorrichtung
DE102004011859A1 (de) * 2004-03-11 2005-09-29 Koenig & Bauer Ag Reinigungsvorrichtung für einen Zylinder oder eine Walze
DE102004011860A1 (de) * 2004-03-11 2005-09-29 Koenig & Bauer Ag Reinigungsvorrichtung
DE102004018735A1 (de) * 2004-04-17 2005-11-17 Baldwin Germany Gmbh Fluid-Sprühvorrichtung

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3508711A (en) * 1967-12-29 1970-04-28 Ryco Graphic Mfg Fluid dispensing system
FR2260394A1 (fr) * 1974-02-11 1975-09-05 Baldwin Gegenheimer Corp

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3508711A (en) * 1967-12-29 1970-04-28 Ryco Graphic Mfg Fluid dispensing system
FR2260394A1 (fr) * 1974-02-11 1975-09-05 Baldwin Gegenheimer Corp

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU614794B2 (en) * 1988-09-13 1991-09-12 Nikka Kabushiki Kaisha Cleaning apparatus and method of cleaning a blanket cylinder of a printing press
EP0572391B1 (fr) * 1990-03-06 1995-10-18 BERNTSSON, Reinhold Systeme situe au niveau d'une mouilleuse a pulverisation
WO1995007182A1 (fr) * 1993-09-08 1995-03-16 Jimek International Ab Tube de pulverisation pour dispositif de lavage de blanchet d'une presse d'impression
DE10030027A1 (de) * 2000-06-17 2001-12-20 Baldwin Grafotec Gmbh Waschvorrichtung für Druckmaschinenzylinder
DE10030027B4 (de) * 2000-06-17 2008-12-11 Baldwin Germany Gmbh Waschvorrichtung für Druckmaschinenzylinder
EP1642717A1 (fr) * 2004-10-01 2006-04-05 Technotrans AG Dispositif de nettoyage de surfaces de cylindres dans une machine d'impression

Also Published As

Publication number Publication date
EP0025806B1 (fr) 1983-05-25

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