FR2716642A1 - Device for washing printing machine cover - Google Patents

Device for washing printing machine cover Download PDF

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Publication number
FR2716642A1
FR2716642A1 FR9502164A FR9502164A FR2716642A1 FR 2716642 A1 FR2716642 A1 FR 2716642A1 FR 9502164 A FR9502164 A FR 9502164A FR 9502164 A FR9502164 A FR 9502164A FR 2716642 A1 FR2716642 A1 FR 2716642A1
Authority
FR
France
Prior art keywords
bristles
rotation
cylindrical brush
detergent
brush
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
FR9502164A
Other languages
French (fr)
Other versions
FR2716642B1 (en
Inventor
Seefried Karl-Heinz
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.)
Heidelberger Druckmaschinen AG
Original Assignee
Heidelberger Druckmaschinen 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 Heidelberger Druckmaschinen AG filed Critical Heidelberger Druckmaschinen AG
Publication of FR2716642A1 publication Critical patent/FR2716642A1/en
Application granted granted Critical
Publication of FR2716642B1 publication Critical patent/FR2716642B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • B41F35/02—Cleaning arrangements or devices for forme cylinders
    • 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

Landscapes

  • Brushes (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Drying Of Solid Materials (AREA)

Abstract

The device includes a controlled cylindrical brush provided to be placed against this cover, this brush normally placed in a recess. A detergent is projected onto this brush in operation. A scraper (12) is provided in the direction of brush rotation and has a stop (13) which penetrates in the field of rotation of the bristles (3) of the brush. A first spray tube (14) penetrates in the field of rotation of the bristles and projects detergent in the cylindrical brush (2). There is a second spray tube (15) which also penetrates equally in the field of rotation of the bristles and projects water on the bristles at the end of the first wash using the detergent. One part of the bristles of the cylindrical brush is made of natural fibres which absorbs wetness.

Description

L'invention se rapporte à un dispositif de lavage de l'enveloppe d'un cylindre d'une machine à imprimer, comprenant une brosse cylindrique commandée qui peut être placée contre cette enveloppe, ainsi qu'une arrivée de détergent, la brosse cylindrique étant disposée dans un logement. The invention relates to a device for washing the envelope of a cylinder of a printing machine, comprising a controlled cylindrical brush which can be placed against this envelope, as well as a detergent inlet, the cylindrical brush being arranged in a housing.

Une solution de ce type est décrite dans DE 38 06 609 Al, dans lequel le détergent est déposé par un rouleau séparé de lavage sur l'enveloppe du cylindre et ensuite seulement une brosse cylindrique agit sur l'enveloppe du cylindre. DE 39 09 819 Al décrit un mode de réalisation analogue, tous les deux documents décrivant encore des rouleaux distributeurs accessoires qui sont associés au rouleau de lavage. A solution of this type is described in DE 38 06 609 A1, in which the detergent is deposited by a separate washing roller on the cylinder casing and then only a cylindrical brush acts on the cylinder casing. DE 39 09 819 A1 describes a similar embodiment, both documents also describing accessory dispensing rollers which are associated with the washing roller.

Etant donné cet art antérieur, la présente invention a pour objet un dispositif de lavage dont le mode d'exécution est très simple, qui abrège la durée de
r lavage et qui est aussi utilisable avec des détergents biologiques.Given this prior art, the present invention relates to a washing device whose mode of execution is very simple, which shortens the duration of
r washing and which can also be used with biological detergents.

Selon une particularité essentielle de l'invention, une râcle, qui est tout d'abord prévue dans le sens de rotation de la brosse cylindrique, comporte une arête qui pénètre dans le champ de rotation des poils, ensuite un premier tube pulvérisateur pénètre aussi dans le champ de rotation des poils et introduit du détergent dans la brosse cylindrique, puis un second tube pulvérisateur pénètre également dans le champ de rotation des poils et projette de l'eau sur ceux-ci à la fin du lavage principal à l'aide du détergent. Si par exemple ce dispositif de lavage est prévu pour un cylindre d'impression, la brosse cylindrique transporte tout d'abord sur l'enveloppe de ce dernier du détergent qui dissout les petites particules de crasse et les particules d'encre adhérentes et à la fin de quelques tours du cylindre, la brosse cylindrique dépose sur celui-ci de l'eau afin d'en enlever le film de détergent qui se trouve encore sur lui.  According to an essential feature of the invention, a doctor blade, which is first of all provided in the direction of rotation of the cylindrical brush, comprises an edge which penetrates into the field of rotation of the bristles, then a first spraying tube also penetrates into the field of rotation of the bristles and introduces detergent into the cylindrical brush, then a second spray tube also penetrates into the field of rotation of the bristles and projects water onto them at the end of the main washing using the detergent. If, for example, this washing device is provided for a printing cylinder, the cylindrical brush first of all transports detergent on the envelope of the latter, which dissolves small particles of dirt and adherent ink particles and At the end of a few turns of the cylinder, the cylindrical brush deposits water on it in order to remove the film of detergent which is still on it.

Selon une particularité avantageuse de l'invention, une partie des poils de la brosse cylindrique consiste en soies naturelles destinées à absorber l'humidité. Ainsi, l'eau qui se trouve sur l'enveloppe du cylindre peut facilement être enlevée et ensuite la râcle en provoque l'éjection par les poils. According to an advantageous feature of the invention, part of the bristles of the cylindrical brush consists of natural bristles intended to absorb moisture. Thus, the water on the cylinder casing can easily be removed and then the doctor blade causes ejection by the bristles.

L'invention va être décrite plus en détail à titre d'exemple en regard de la figure unique du dessin schématique annexé. The invention will be described in more detail by way of example with reference to the single figure of the appended schematic drawing.

Une brosse cylindrique 2 qui est associée au cylindre 1, qui peut être par exemple un cylindre d'impression, comporte des poils 3 qui peuvent être placés contre l'enveloppe de ce dernier. Un train d'engrenage 4, 5, 6 commande la brosse cylindrique 2 qui peut aussi effectuer un mouvement axial. La brosse cylindrique 2 est disposée dans un logement 7 fixé par un support 8 à une traverse 9. Un tuyau d'écoulement 10 prévu à l'extrémité inférieure du logement 7 permet l'évacuation du liquide usé de lavage. A cylindrical brush 2 which is associated with cylinder 1, which may for example be a printing cylinder, has bristles 3 which can be placed against the envelope of the latter. A gear train 4, 5, 6 controls the cylindrical brush 2 which can also perform an axial movement. The cylindrical brush 2 is placed in a housing 7 fixed by a support 8 to a cross member 9. A drain pipe 10 provided at the lower end of the housing 7 allows the discharge of the used washing liquid.

Une râcle 12 fixée à une autre traverse 11 placée à proximité de la brosse cylindrique 2 comporte une arête 13 qui pénètre dans le champ de rotation des poils 3 et qui fait fléchir ceux-ci lors du mouvement de rotation, de sorte qu'ils éjectent le liquide lorsqu'ils se redressent. Un premier tube pulvérisateur 14 prévu à la suite de l'arête 13 de la râcle, dans le sens de rotation de la brosse cylindrique 2, pénètre également dans le champ de rotation des poils 3 et projette du détergent dans la brosse 2. Le détergeant peut aussi comprendre des solvants de l'encre. Le tube pulvérisateur 14 produit également un mouvement de redressement des poils qui provoque l'éjection des particules dissoutes de crasse. Le lavage principal de l'enveloppe du cylindre 1, qui est effectué à l'aide de ce solvant, nécessite environ trente tours de ce cylindre. L'utilisation d'une brosse cylindrique permet de faire tourner le cylindre à grande vitesse.  A doctor blade 12 fixed to another cross member 11 placed near the cylindrical brush 2 has an edge 13 which enters the field of rotation of the bristles 3 and which causes them to bend during the rotational movement, so that they eject the liquid when they straighten. A first spray tube 14 provided following the rake 13 of the scraper, in the direction of rotation of the cylindrical brush 2, also enters the field of rotation of the bristles 3 and projects detergent into the brush 2. The detergent may also include ink solvents. The spray tube 14 also produces a straightening movement of the bristles which causes the dissolved dirt particles to be ejected. The main washing of the casing of cylinder 1, which is carried out using this solvent, requires approximately thirty revolutions of this cylinder. The use of a cylindrical brush makes it possible to turn the cylinder at high speed.

Un second tube pulvérisateur 15 projette de l'eau sur les poils 3 à la fin du lavage principal, en particulier lorsqu'un détergent biologique est utilisé, de sorte que les restes de ce dernier peuvent être enlevés de l'enveloppe du cylindre 1. Le second tube pulvérisateur 15 pénètre également dans le champ de rotation des poils 3 et assure l'éjection du liquide encrassé de lavage. Le tube pulvérisateur 15 est également fixé à la traverse 11 au moyen d'un support 16. A second spray tube 15 projects water onto the bristles 3 at the end of the main wash, in particular when a biological detergent is used, so that the remains of the latter can be removed from the casing of the cylinder 1. The second spray tube 15 also enters the field of rotation of the bristles 3 and ensures the ejection of the dirty washing liquid. The spray tube 15 is also fixed to the cross member 11 by means of a support 16.

Il est avantageux, pour améliorer l'enlèvement de l'eau de l'enveloppe du cylindre 1, de mélanger les poils 3 de la brosse cylindrique 2 avec des soies naturelles qui absorbent facilement l'eau utilisée et la projettent après passage sur la râcle 12. It is advantageous, to improve the removal of water from the casing of cylinder 1, to mix the bristles 3 of the cylindrical brush 2 with natural bristles which easily absorb the water used and project it after passing over the squeegee 12.

Claims (2)

REVENDICATIONS 1. Dispositif de lavage de l'enveloppe d'un cylindre d'une machine à imprimer, comprenant une brosse cylindrique commandée pouvant être placée contre cette enveloppe, ainsi qu'une arrivée de détergent, la brosse cylindrique étant placée dans un logement, caractérisé en ce que tout d'abord une râcle (12) qui est prévue dans le sens de rotation de la brosse cylindrique (2) comporte une arête (13) qui pénètre dans le champ de rotation des poils (3), en ce qu'ensuite un premier tube pulvérisateur (14) qui est prévu pénètre dans le champ de rotation des poils (3) et projette du détergent dans la brosse cylindrique (2) et en ce qu'ensuite un second tube pulvérisateur (15) qui est prévu pénètre également dans le champ de rotation des poils (3) et projette de leau sur les poils (3) à la fin du lavage principal à l'aide du détergent. 1. Device for washing the envelope of a cylinder of a printing machine, comprising a controlled cylindrical brush which can be placed against this envelope, as well as a detergent inlet, the cylindrical brush being placed in a housing, characterized in that first of all a doctor blade (12) which is provided in the direction of rotation of the cylindrical brush (2) has an edge (13) which penetrates into the field of rotation of the bristles (3), in that then a first spray tube (14) which is provided enters the field of rotation of the bristles (3) and projects detergent into the cylindrical brush (2) and in that a second spray tube (15) which is provided penetrates also in the field of rotation of the bristles (3) and sprays water on the bristles (3) at the end of the main wash using the detergent. 2. Dispositif de lavage selon la revendication 1, caractérisé en ce qu'une partie des poils (3) de la brosse cylindrique (2) consiste en des soies naturelles destinées à absorber l'humidité.  2. Washing device according to claim 1, characterized in that part of the bristles (3) of the cylindrical brush (2) consists of natural bristles intended to absorb moisture.
FR9502164A 1994-02-26 1995-02-24 Device for washing the envelope of a cylinder of a printing machine. Expired - Fee Related FR2716642B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE9403228U DE9403228U1 (en) 1994-02-26 1994-02-26 Washing device for washing the outer surface of a cylinder of a printing press

Publications (2)

Publication Number Publication Date
FR2716642A1 true FR2716642A1 (en) 1995-09-01
FR2716642B1 FR2716642B1 (en) 1997-08-22

Family

ID=6905174

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9502164A Expired - Fee Related FR2716642B1 (en) 1994-02-26 1995-02-24 Device for washing the envelope of a cylinder of a printing machine.

Country Status (2)

Country Link
DE (1) DE9403228U1 (en)
FR (1) FR2716642B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1671792A1 (en) * 2004-12-16 2006-06-21 GAP Printing Sales Limited Apparatus for washing a blanket in an offset printing press

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4426079A1 (en) * 1994-07-22 1996-01-25 Baldwin Gegenheimer Gmbh Device for cleaning rollers
DE29612400U1 (en) * 1996-07-17 1996-09-12 MAN Roland Druckmaschinen AG, 63075 Offenbach Cleaning device for a cylinder of a printing machine
DE19702082B4 (en) * 1997-01-22 2005-10-13 Heidelberger Druckmaschinen Ag Washing device in the printing unit of rotary printing machines
DE29708470U1 (en) * 1997-05-13 1997-07-10 MAN Roland Druckmaschinen AG, 63075 Offenbach Cleaning device for a cylinder or roller of a printing machine

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3806609A1 (en) * 1987-03-28 1988-10-13 Heidelberger Druckmasch Ag WASHING DEVICE FOR WASHING THE SHEATH SURFACE OF A RUBBER PAD CYLINDER OF AN OFFSET PRINTING MACHINE
DE3909819A1 (en) * 1989-03-24 1990-09-27 Heidelberger Druckmasch Ag WASHING DEVICE FOR CLEANING A CYLINDER OF A PRINTING MACHINE
EP0659560A1 (en) * 1993-12-21 1995-06-28 MAN Roland Druckmaschinen AG Apparatus for cleaning of cylinder in printing machine, in particular an offset-printing machine

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3806609A1 (en) * 1987-03-28 1988-10-13 Heidelberger Druckmasch Ag WASHING DEVICE FOR WASHING THE SHEATH SURFACE OF A RUBBER PAD CYLINDER OF AN OFFSET PRINTING MACHINE
DE3909819A1 (en) * 1989-03-24 1990-09-27 Heidelberger Druckmasch Ag WASHING DEVICE FOR CLEANING A CYLINDER OF A PRINTING MACHINE
EP0659560A1 (en) * 1993-12-21 1995-06-28 MAN Roland Druckmaschinen AG Apparatus for cleaning of cylinder in printing machine, in particular an offset-printing machine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1671792A1 (en) * 2004-12-16 2006-06-21 GAP Printing Sales Limited Apparatus for washing a blanket in an offset printing press

Also Published As

Publication number Publication date
FR2716642B1 (en) 1997-08-22
DE9403228U1 (en) 1994-04-21

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Effective date: 20061031