EP0711666A2 - Dispositif de nettoyage pour le dispositif de guidage de feuilles d'une machine d'impression rotative - Google Patents

Dispositif de nettoyage pour le dispositif de guidage de feuilles d'une machine d'impression rotative Download PDF

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Publication number
EP0711666A2
EP0711666A2 EP95117013A EP95117013A EP0711666A2 EP 0711666 A2 EP0711666 A2 EP 0711666A2 EP 95117013 A EP95117013 A EP 95117013A EP 95117013 A EP95117013 A EP 95117013A EP 0711666 A2 EP0711666 A2 EP 0711666A2
Authority
EP
European Patent Office
Prior art keywords
cleaning device
sheet guiding
sheet
cleaning
cylinder
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
EP95117013A
Other languages
German (de)
English (en)
Other versions
EP0711666A3 (fr
EP0711666B1 (fr
Inventor
Ulrich Beitel
Nikola Pupic
Armin Schwebe
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.)
Manroland AG
Original Assignee
MAN Roland 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
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6533071&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0711666(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by MAN Roland Druckmaschinen AG filed Critical MAN Roland Druckmaschinen AG
Publication of EP0711666A2 publication Critical patent/EP0711666A2/fr
Publication of EP0711666A3 publication Critical patent/EP0711666A3/fr
Application granted granted Critical
Publication of EP0711666B1 publication Critical patent/EP0711666B1/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
    • B41F35/006—Cleaning arrangements or devices for impression cylinders

Definitions

  • the invention relates to a cleaning device for sheet guiding devices in rotary printing machines according to the preamble of the main claim.
  • a washing device for cylinders is known from EP 0 004 605 A1.
  • the device uses a washing roller which is sprayed with washing liquid and is lifted off the pressure cylinder in the area of the gripper bridge.
  • the washing device can also have a cleaning cloth according to DE 3 005 469 C2, which is guided from a supply roll via a pressing element that can be switched on and off to a dirty cloth roll.
  • the object of the invention is to develop a cleaning device for sheet guiding devices in rotary printing presses which cleans the surface (guide surface) of the sheet guiding devices with little effort.
  • the cleaning device removes the paint or varnish residues adhering to the sheet guiding devices and other impurities. Especially in reverse printing, it is possible for ink or paint particles to deposit on the surface (guide surface) of sheet guiding devices. If these are not removed, color / varnish builds up selectively on the sheet guiding devices. These deposits, possibly also in combination with other contaminants, cause printed sheets to be scratched. This may affect print quality. Manual cleaning of the sheet guiding devices is often very complex due to the unfavorable accessibility.
  • the sheet guiding devices are generally assigned to the transfer drums, also called transfer drums, within a rotary printing press.
  • the invention is particularly suitable for the arrangement of one or more adjacent transfer drums with a corresponding sheet guiding device between two printing units or also of further processing units, such as e.g. Painting equipment.
  • the cleaning device is particularly suitable for sheet guide devices with guide surfaces with and without openings, which can also accommodate air nozzles, but also for sheet guide devices formed with guide rods.
  • the cleaning device is arranged to be movable in an approximately radial direction. This is preferably achieved by elastic spring connections between the cleaning device and the transfer drum.
  • the elastic arrangement of the cleaning device allows the contact pressure of the cleaning device to be metered against the sheet guiding device. As a result, it is also able to avoid unevenness or other components, such as, for example, sheet flattening within the guide surface or adjacent printing cylinders or drums.
  • a cam mechanism is preferably provided in the area of these components.
  • the cam mechanism is in each case by a frame member or arranged on a pressure cylinder or a drum cam member (cam carrier) and one on the end face of the transfer drum itself or the Cleaning device arranged cam member (engagement roller) is formed.
  • the cam link on the pressure cylinder / drum or the side frame is the drive link.
  • the cam member (engagement roller) on the transfer drum or the cleaning device is the output member.
  • the drive member and output member form a periodic movement coupling with the adjacent printing cylinder or the adjacent drum per rotation of the transfer drum.
  • a first printing unit is represented in the sheet running direction by a printing cylinder 3, a blanket cylinder 2 and a plate cylinder 1.
  • a second printing unit is represented by a printing cylinder 6, a blanket cylinder 7 and a plate cylinder 8.
  • a transfer drum 5, which carries two gripper bridges 9, is arranged between the printing units (inking and dampening units are not shown).
  • Each gripper bridge 9 is formed in a known manner by a gripper shaft with a plurality of grippers and an associated gripper support.
  • the transfer drum 5 is associated with a sheet guiding device 4, which is arranged outside the drum 5 at a short distance from its enveloping circle.
  • the sheet guiding device is formed by blowing / suction boxes which have a guide surface with openings.
  • a cleaning device 10 is arranged on the circumference of the transfer drum 5 in the area of the gripper bridges 9.
  • the cleaning device 10 is detachably inserted and locked as a complete component in an adjustable receptacle, but is arranged to be movable in an approximately radial direction in a limited area. This is achieved by an elastic spring connection between the cleaning device 10 and the receptacle or the transfer drum 5.
  • the Cleaning device 10 is further formed by a washing roller 12, for example a brush roller and an adjacent absorbent pad 11, for example a sponge, which extend over the entire width of the sheet guiding device 4.
  • the elastic arrangement of the cleaning device 10 serves to adjust the contact pressure of the cleaning device 10 against the guide surface of the sheet guiding device 4. However, it also serves to prevent contact with adjacent pressure cylinder / drum jacket surfaces during the cleaning process. This is achieved in that a cam mechanism keeps the cleaning device 10 away from the adjacent pressure cylinder 3, 6.
  • the cam mechanism is formed by a measuring ring on the respective pressure cylinder 3, 6 as a cam member and a roller arranged on the side of the cleaning device 10 as an engagement member.
  • the cam mechanism is arranged on both sides of the machine frame or the respective cylinder and the corresponding cleaning device 10.
  • the mode of action is as follows: To insert the cleaning device 10, the transfer drum 5 is rotated into the corresponding installation position (approximately the top dead center). The cleaning device 10 is inserted and fixed as a module in the receptacles. Each holder is adjusted once and does not have to be readjusted every time it is inserted. Before, for example from a control center, the paper flow was stopped. An unintentional start of printing with built-in cleaning device 10 is thus prevented in terms of circuitry.
  • the sheet guiding device 4, especially its guide surface, is sprayed with a cleaning liquid manually or through nozzles arranged fixed to the frame.
  • the printing press is then started and the cleaning device 10 is prevented from contacting by the upstream printing cylinder 3 and pressed against the guide surface of the sheet guiding device 4 via the spring connection in the sheet outlet and the subsequent sheet emergence.
  • the cleaning device 10 is in turn prevented from contacting its outer surface by the cam mechanism.
  • the cleaning device 10 is in this possible contact zones in the radial direction against the transfer drum means moved in a defined area. After leaving the possible contact zone, the cleaning device 10 is pressed against its predetermined stop, so that the required contact pressure on the guide surfaces of the sheet guiding device 4 is ensured. The contaminants dissolved by the cleaning liquid are removed and absorbed by the cleaning device 10.
  • the washing roller 12 removes the contaminants and the downstream absorbent pad 11 absorbs the mixture of cleaning agent and contaminants.
  • the cleaning device 10 can remain fixed on the transfer drum 5 for several revolutions until the cleaning is successful.
  • the cleaning liquid can be sprayed several times onto the guide surfaces of the sheet guiding device 4.
  • the transfer drum 5 When the cleaning process is finished, the transfer drum 5 is rotated back into the installation position.
  • the cleaning device 10 is released from its receptacle and completely removed. After removing the cleaning device 10 from the printing press, the device 10 can be cleaned separately.
  • the cleaning process can preferably be initiated at the end of a print job or at the end of the shift.
  • At least one cleaning device 10 is arranged on the transfer drum 5.
  • transfer drums 5 which are two, three or four times large (based on a single-size printing cylinder)
  • two, three or four cleaning devices 10 can also be arranged symmetrically offset per drum 5.
  • all or only individual drums 5 can be equipped with cleaning devices 10, which are also interchangeable.
  • the cleaning device 10 is not limited to the previously described example of a washing roller 12 and an absorbent pad 11. Rather, washcloth and pressure element or a flexible doctor blade or other elastic pressure elements are also suitable for this.

Landscapes

  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
EP95117013A 1994-11-11 1995-10-28 Dispositif de nettoyage pour le dispositif de guidage de feuilles d'une machine d'impression rotative Expired - Lifetime EP0711666B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4440325A DE4440325C1 (de) 1994-11-11 1994-11-11 Reinigungseinrichtung für eine Bogenleiteinrichtung einer Rotationsdruckmaschine
DE4440325 1994-11-11

Publications (3)

Publication Number Publication Date
EP0711666A2 true EP0711666A2 (fr) 1996-05-15
EP0711666A3 EP0711666A3 (fr) 1996-10-30
EP0711666B1 EP0711666B1 (fr) 1998-08-19

Family

ID=6533071

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95117013A Expired - Lifetime EP0711666B1 (fr) 1994-11-11 1995-10-28 Dispositif de nettoyage pour le dispositif de guidage de feuilles d'une machine d'impression rotative

Country Status (3)

Country Link
EP (1) EP0711666B1 (fr)
AT (1) ATE169868T1 (fr)
DE (2) DE4440325C1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1095770A1 (fr) * 1999-10-30 2001-05-02 MAN Roland Druckmaschinen AG Appareil de nettoyage pour un dispositif de guidage de feuilles d'une machine rotative d'impression

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19725505C2 (de) * 1997-06-17 2000-11-16 Roland Man Druckmasch Reinigungsvorrichtung zum Reinigen einer Bogenleiteinrichtung in einem Falzapparat
DE19936260B4 (de) * 1999-07-31 2006-05-24 Koenig & Bauer Ag Einrichtung an Zylindern zum Begrenzen von Farbaufbau
DE19936261B4 (de) * 1999-07-31 2006-01-19 Koenig & Bauer Ag Einrichtung zum Entfernen von Farbe
DE102007029681B3 (de) * 2007-06-27 2008-10-23 Manroland Ag Druckwerk für eine Verarbeitungsmaschine
DE102011012891A1 (de) 2010-03-29 2011-09-29 Heidelberger Druckmaschinen Ag Rotationsdruckwerk mit einem Druckformzylinder und einem Übertragungszylinder

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0004605A1 (fr) 1978-04-10 1979-10-17 M.A.N.-ROLAND Druckmaschinen Aktiengesellschaft Dispositif pour nettoyer des cylindres de machines à imprimer, en particulier des machines à imprimer offset
DE3005469A1 (de) 1979-04-19 1980-10-30 Baldwin Gegenheimer Corp Waschvorrichtung eines drucktuchzylinders einer druckmaschine mit einem reinigungstuch
DE3627430A1 (de) 1985-09-20 1987-04-02 Polygraph Leipzig Rakel und rakeltraeger

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3930747A1 (de) * 1989-09-14 1991-03-28 Roland Man Druckmasch Bogenfuehrungstrommel in rotationsdruckmaschinen

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0004605A1 (fr) 1978-04-10 1979-10-17 M.A.N.-ROLAND Druckmaschinen Aktiengesellschaft Dispositif pour nettoyer des cylindres de machines à imprimer, en particulier des machines à imprimer offset
DE3005469A1 (de) 1979-04-19 1980-10-30 Baldwin Gegenheimer Corp Waschvorrichtung eines drucktuchzylinders einer druckmaschine mit einem reinigungstuch
DE3627430A1 (de) 1985-09-20 1987-04-02 Polygraph Leipzig Rakel und rakeltraeger

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1095770A1 (fr) * 1999-10-30 2001-05-02 MAN Roland Druckmaschinen AG Appareil de nettoyage pour un dispositif de guidage de feuilles d'une machine rotative d'impression

Also Published As

Publication number Publication date
DE4440325C1 (de) 1996-02-01
ATE169868T1 (de) 1998-09-15
EP0711666A3 (fr) 1996-10-30
DE59503254D1 (de) 1998-09-24
EP0711666B1 (fr) 1998-08-19

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