EP1342576A2 - Dispositif pour nettoyer un rouleau ou un cylindre - Google Patents

Dispositif pour nettoyer un rouleau ou un cylindre Download PDF

Info

Publication number
EP1342576A2
EP1342576A2 EP03101554A EP03101554A EP1342576A2 EP 1342576 A2 EP1342576 A2 EP 1342576A2 EP 03101554 A EP03101554 A EP 03101554A EP 03101554 A EP03101554 A EP 03101554A EP 1342576 A2 EP1342576 A2 EP 1342576A2
Authority
EP
European Patent Office
Prior art keywords
cleaning
roller
chamber
toothed belt
cleaned
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
EP03101554A
Other languages
German (de)
English (en)
Other versions
EP1342576B1 (fr
EP1342576A3 (fr
Inventor
Claus-Dieter Barrois
Reinhold Dünninger (verstorben)
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 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 Koenig and Bauer AG filed Critical Koenig and Bauer AG
Publication of EP1342576A2 publication Critical patent/EP1342576A2/fr
Publication of EP1342576A3 publication Critical patent/EP1342576A3/fr
Application granted granted Critical
Publication of EP1342576B1 publication Critical patent/EP1342576B1/fr
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
    • 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
    • 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
    • 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
    • B41P2235/26—Spraying devices

Definitions

  • the invention relates to a device for cleaning a roller or a cylinder according to the preamble of claim 1.
  • EP 06 93 378 B1 discloses a device for cleaning rollers in which a rotatable brush roller can be guided along the roller to be cleaned by hand, a cleaning liquid being able to be applied to the brush roller.
  • This known device contains a storage container for the cleaning liquid and a collecting container for the dirt particles to be removed.
  • DE 197 34 103 A1 discloses a device for developing cylindrical surfaces in which a brush roller for cleaning the cylindrical surface can be moved in the longitudinal direction of the roller.
  • US 5 568 768 A, US 5 255 606 A, DE 25 22 743 A1, DE 23 17 174 B2, US 2 171 631 A and DE-AS 1 561 029 disclose devices for cleaning rollers with a cleaning element rotating in the longitudinal direction of the rollers.
  • the invention has for its object to provide a device for cleaning a roller or a cylinder.
  • the advantages which can be achieved with the invention consist in particular in that a high and reliable cleaning effect can be achieved with a comparatively simple construction of the device, in particular a liquid cleaning agent Can be used.
  • the cleaning agent can also be reprocessed and circulated, at the same time allowing the device to self-clean.
  • the device according to the invention can remain in a fixed position relative to the roller to be cleaned, which means that expensive set-up times can be avoided.
  • Another advantage is that the cleaning effect of the device according to the invention can be easily adapted to the degree of soiling of the roller to be cleaned.
  • the device 01 according to the invention is arranged in the immediate vicinity of a roller 02 or cylinder to be cleaned, for example a forme cylinder or a guide roller of a printing machine, not shown.
  • the device 01 has a first carrier element 03 in the form of a toothed belt, which is guided over two axially spaced rotatable guide elements in the form of pulleys 04 and 05, respectively.
  • a loop-like, endlessly circulating carrier element is formed with a first strand 06 facing the roller 02 and a second strand 07 pointing away from the roller.
  • a drive not shown, which applies torque to at least one of the pulleys 04 or 05 and thus drives the toothed belt 03 in the direction F of a longitudinal axis of the roller 02.
  • the two pulleys 04 and 05 more precisely their central axes 08 and 09 running perpendicular to the plane of the drawing, have an axial spacing which, in the exemplary embodiment shown here, corresponds essentially to the axial length of the roller 02 to be cleaned.
  • the toothed belt 03 is provided with cleaning elements 10 in the form of bristle-like bristle elements which are arranged on the toothed belt 03 in such a way that they extend radially outward, with respect to the loop formed by the toothed belt 03, point. Furthermore, in the illustrated embodiment, the toothed belt 03 is not provided with bristle elements 10 over its entire length; rather, the timing belt is bristled only 03 over half its length. As a result, the toothed belt 03 can be brought into the position shown in FIG.
  • the device 01 is provided with a series of cleaning chambers 11, 12, 13, 14 and 15 arranged one behind the other, through which the toothed belt 03 and thus the bristle elements 10 pass in succession.
  • the bristle elements 10 are at least partially freed from impurities picked up from the surface of the roller 02. This can, for example, be achieved or at least supported by scrapers, not shown, which are arranged in the respective cleaning chambers.
  • each cleaning chamber 11, 12, 13, 14 and 15 has an inlet 16 for a cleaning agent for cleaning the bristle elements 10.
  • a cleaning liquid for example water, optionally also with the addition of solvents, soaps, alkalis or the like, can be used as the cleaning agent.
  • the cleaning agent is flushed into the cleaning chambers 11, 12, 13, 14 and 15 through this inlet 16, the bristle elements 10 guided through the cleaning chambers being wetted and freed of their dirt load.
  • each cleaning chamber 11, 12, 13, 14 and 15 has an outlet 17 for the cleaning agent soiled after cleaning the bristle elements 10.
  • a further chamber 18 is arranged, which is likewise passed through by the toothed belt 03 and the bristle elements 10.
  • the bristle elements 10 are dehumidified to a certain degree depending on the respective application. This dehumidification can take place, for example, by means of a stripping element, not shown, which comes into engagement with the bristle elements 10, or by blowing in compressed air or the like.
  • the stripped or blown-off cleaning agent is discharged from the chamber 18 through an outlet 19.
  • the outlets 17 of the cleaning chambers 11, 12, 13, 14 and 15 and the outlet 19 of the chamber 18 open into a common collecting duct 20.
  • the collecting duct 20 is connected to a collecting vessel 22 via a line 21, in which the dirty detergent is directed.
  • the contaminated cleaning agent is passed through a filter element 23 in or subsequent to the collecting vessel 22 and is cleaned of the contaminants there.
  • the cleaning agent which has been reprocessed in this way and optionally replenished is then stored in a second collecting vessel 24 and from there it is returned to the cleaning chambers 11, 12, 13, 14 and 15 via the inlets 16 by means of a pump 25 and a line 26.
  • a pump 25 and a line 26 The cleaning agent which has been reprocessed in this way and optionally replenished is then stored in a second collecting vessel 24 and from there it is returned to the cleaning chambers 11, 12, 13, 14 and 15 via the inlets 16 by means of a pump 25 and a line 26.
  • two toothed belts 03 and 27 are connected one behind the other in relation to the circumferential direction of the roller 02; H. arranged one above the other.
  • the second toothed belt 27 is provided with bristle elements 28 over its half length in the same way as the first toothed belt 03.
  • the toothed belt 27 is guided in the same way as the toothed belt 03 over pulleys, not shown, whose central axes are aligned with the central axes 08 and 09 of the pulleys 04 and 05.
  • At least one of the belt pulleys of the toothed belt 27 has a drive with which this belt pulley can be acted upon with a torque for driving the toothed belt 27.
  • the drive of the toothed belt 03 and the drive of the toothed belt 27 are basically independent. In the embodiment shown here, the drive of the toothed belt 03 and the drive of the toothed belt 27 are in opposite directions, so that the direction of rotation of the belt pulleys and thus the toothed belt 03 and 27 itself are in opposite directions. The directions of rotation of the drives can be reversible.
  • a guide element 29 is provided between the pulleys 04 and 05 of the toothed belt 03 and the not shown pulleys of the toothed belt 27, which extends in the embodiment shown here essentially over the entire space between the respective pulleys.
  • the guide element 29 has groove-like depressions 30, 31 and 32, 33, one above the other, in which the respective strands of the toothed belts 03 and 27 are guided. This involves both Guide perpendicular to the main planes formed by the toothed belt loops and a support of the toothed belts 03 and 27 against the groove base.
  • a component 34 is arranged on the guide element 29, in which the cleaning chambers 11, 12, 13, 14 and 15 and the chamber 18 for the upper toothed belt 03 and, in principle, the same Way, the cleaning chambers 35 and the chamber for the lower toothed belt 27 are formed. All chambers open with their outlet 17 or 19 (upper toothed belt 03) and 36 (lower toothed belt 27) into the common collecting duct 20, which is likewise formed directly in component 34.
  • the inlets 16 (upper toothed belt 03) and 37 (lower toothed belt 27) for the inflow of cleaning agent, the cleaning chamber 11, 12, 13, 14 and 15 and 35 are also arranged.
  • Inlets 16 and 37 open into manifolds 38 and 39 attached laterally at the top and bottom of component 34, which are supplied with cleaning agent by pump 25 via line 26.
  • the roller 02 to be cleaned has a plate 40 for flexographic printing on its surface, which is to be freed of impurities, in particular ink residues, after a printing process which has ended as intended.
  • the bristle elements 10 and 28 are arranged on the run of the toothed belts 03 and 27 facing away from the roller 02, so that no engagement with the roller 02 or with the flexographic Plate 40 is done.
  • the distance of the device 01 from the roller 02 is selected so that in the working position, ie with the Bristle elements 10 provided strand of the toothed belt now points to the roller 02, the bristle elements with the roller surface in mechanical engagement or can come to rest on the roller surface.
  • the device 01 according to the invention can remain in the unchanged position on the roller during the printing process, so that expensive makeready times are eliminated.
  • the cleaning chambers 11, 12, 13, 14 and 15 are first rinsed with cleaning liquid and the bristle elements 10 are thereby wetted.
  • the bristle elements 10 migrate through the chambers arranged one behind the other and after rinsing with detergent in the cleaning chambers 11, 12, 13, 14 and 15, the bristle elements 10 in the second chamber 19 are dehumidified to the extent that on the one hand An undesirable leakage of cleaning agent from the gap between the roller 02 and the device 01 is largely prevented by sweeping over the roller surface, but on the other hand a sufficient amount of cleaning agent is transferred to the plate when the plate 40 arranged on the roller surface is covered with the bristle elements 10. to soften the color to be removed by the cleaning process.
  • the bristle elements 10 initially transmit both cleaning agent to the surface to be cleaned and mechanically abrasive removal of the dirt. With increasing release of the residual moisture of the bristle elements 10 onto the surface of the roller 02 or the flexographic plate 40, the bristle elements 10 are able to take up the color residues from the roller surface and via the rinsing into the Dispense cleaning chambers 11, 12, 13, 14 and 15 for separation.
  • the cycle time that is to say in particular the dwell time and amount of the cleaning agent on the roller surface, is in particular due to the adaptation of the rotational speed of the roller 02 and the rotational speed of the toothed belt, but also by adjustment of the residual moisture content of the bristle elements 10 in the chamber 18 depending on, for example, the degree of contamination in wide limits freely adjustable.
  • a second toothed belt 27 which acts in basically the same way, but is driven in the opposite direction to the toothed belt 03, in particular increases the cleaning area and thereby shortens the cleaning time. Due to the opposite movement of the two toothed belts 03 and 27, the flanks of the intended elevations and / or depressions of the roller surface opposite in the direction of movement of the toothed belts 03 and 27 are also subject to a more uniform cleaning effect, since "shadow areas" are largely prevented.
  • the device 01 is also provided with a housing 41 which is open towards the roller 02.
  • the edge areas of the housing 41 in the area of both end faces of the roller 02 have splash plates 42 and 43 which, depending on the direction of rotation of the toothed belts 03 and 27, cause uncontrolled spraying of cleaning agent when the bristle elements 10 emerge from the chamber 18 or contaminated Prevent cleaning agents when the bristle elements 10 enter the housing 41.

Landscapes

  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Cleaning In General (AREA)
EP03101554A 2000-02-28 2001-02-01 Dispositif pour nettoyer un rouleau ou un cylindre Expired - Lifetime EP1342576B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10009353A DE10009353A1 (de) 2000-02-28 2000-02-28 Vorrichtung zum Reinigen einer Walze oder eines Zylinders
DE10009353 2000-02-28
EP01913556A EP1259379B1 (fr) 2000-02-28 2001-02-01 Dispositif pour nettoyer un rouleau ou un cylindre

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP01913556A Division EP1259379B1 (fr) 2000-02-28 2001-02-01 Dispositif pour nettoyer un rouleau ou un cylindre
EP01913556.5 Division 2001-02-01

Publications (3)

Publication Number Publication Date
EP1342576A2 true EP1342576A2 (fr) 2003-09-10
EP1342576A3 EP1342576A3 (fr) 2003-09-24
EP1342576B1 EP1342576B1 (fr) 2006-08-02

Family

ID=7632708

Family Applications (3)

Application Number Title Priority Date Filing Date
EP01913556A Expired - Lifetime EP1259379B1 (fr) 2000-02-28 2001-02-01 Dispositif pour nettoyer un rouleau ou un cylindre
EP03101554A Expired - Lifetime EP1342576B1 (fr) 2000-02-28 2001-02-01 Dispositif pour nettoyer un rouleau ou un cylindre
EP03101552A Expired - Lifetime EP1342575B1 (fr) 2000-02-28 2001-02-01 Dispositif pour nettoyer un rouleau ou un cylindre

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP01913556A Expired - Lifetime EP1259379B1 (fr) 2000-02-28 2001-02-01 Dispositif pour nettoyer un rouleau ou un cylindre

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP03101552A Expired - Lifetime EP1342575B1 (fr) 2000-02-28 2001-02-01 Dispositif pour nettoyer un rouleau ou un cylindre

Country Status (5)

Country Link
EP (3) EP1259379B1 (fr)
AT (3) ATE334825T1 (fr)
AU (1) AU2001239151A1 (fr)
DE (4) DE10009353A1 (fr)
WO (1) WO2001064440A1 (fr)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2171631A (en) 1935-07-08 1939-09-05 Celanese Corp Device for cleaning rotating cylinders
DE1561029B1 (de) 1966-04-22 1971-12-16 Oxy Dry Internat Ltd Reinigungsvorrichtung fuer den Gummizylinder einer Offset-Druckmaschine
DE2317174B2 (de) 1972-04-20 1975-08-21 Dai Nippon Insatsu K.K., Tokio Wasch- und Trockenvorrichtung für den Offsetsetzzylinder in einer Offsetrotationsdruckmaschine
DE2522743A1 (de) 1974-06-11 1976-01-02 Dainippon Printing Co Ltd Vorrichtung zum reinigen des offsetzylinders einer lithographischen offsetdruckmaschine
US5255606A (en) 1990-04-02 1993-10-26 Kabushikikaisha Tokyo Kikai Seisakusho Drag roller device for printing apparatus
US5568768A (en) 1995-05-04 1996-10-29 Presstek, Inc. Cleaning apparatus for offset plates
EP0693378B1 (fr) 1994-07-22 1997-07-23 Baldwin-Gegenheimer GmbH Appareil pour nettoyer des cylindres
DE19734103A1 (de) 1997-08-07 1999-02-11 Kba Planeta Ag Einrichtung zum Entwickeln von zylindrischen Oberflächen

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2171631A (en) 1935-07-08 1939-09-05 Celanese Corp Device for cleaning rotating cylinders
DE1561029B1 (de) 1966-04-22 1971-12-16 Oxy Dry Internat Ltd Reinigungsvorrichtung fuer den Gummizylinder einer Offset-Druckmaschine
DE2317174B2 (de) 1972-04-20 1975-08-21 Dai Nippon Insatsu K.K., Tokio Wasch- und Trockenvorrichtung für den Offsetsetzzylinder in einer Offsetrotationsdruckmaschine
DE2522743A1 (de) 1974-06-11 1976-01-02 Dainippon Printing Co Ltd Vorrichtung zum reinigen des offsetzylinders einer lithographischen offsetdruckmaschine
US5255606A (en) 1990-04-02 1993-10-26 Kabushikikaisha Tokyo Kikai Seisakusho Drag roller device for printing apparatus
EP0693378B1 (fr) 1994-07-22 1997-07-23 Baldwin-Gegenheimer GmbH Appareil pour nettoyer des cylindres
US5568768A (en) 1995-05-04 1996-10-29 Presstek, Inc. Cleaning apparatus for offset plates
DE19734103A1 (de) 1997-08-07 1999-02-11 Kba Planeta Ag Einrichtung zum Entwickeln von zylindrischen Oberflächen

Also Published As

Publication number Publication date
DE50110646D1 (de) 2006-09-14
AU2001239151A1 (en) 2001-09-12
EP1342575A3 (fr) 2003-09-24
EP1342576B1 (fr) 2006-08-02
EP1342576A3 (fr) 2003-09-24
ATE253458T1 (de) 2003-11-15
EP1342575B1 (fr) 2006-08-02
ATE334826T1 (de) 2006-08-15
EP1259379B1 (fr) 2003-11-05
DE50110645D1 (de) 2006-09-14
DE50100904D1 (de) 2003-12-11
WO2001064440A1 (fr) 2001-09-07
EP1342575A2 (fr) 2003-09-10
EP1259379A1 (fr) 2002-11-27
DE10009353A1 (de) 2001-09-20
ATE334825T1 (de) 2006-08-15

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