EP1010525A1 - Bogenführungseinrichtung für eine Druckmaschine - Google Patents
Bogenführungseinrichtung für eine Druckmaschine Download PDFInfo
- Publication number
- EP1010525A1 EP1010525A1 EP99123746A EP99123746A EP1010525A1 EP 1010525 A1 EP1010525 A1 EP 1010525A1 EP 99123746 A EP99123746 A EP 99123746A EP 99123746 A EP99123746 A EP 99123746A EP 1010525 A1 EP1010525 A1 EP 1010525A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- wall
- valve element
- guiding device
- sheet guiding
- openings
- 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
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
- B65H29/52—Stationary guides or smoothers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F21/00—Devices for conveying sheets through printing apparatus or machines
Definitions
- the invention relates to a sheet guiding device for a printing machine with one along the sheet path extending guide surface and provided in the guide surface Nozzles that can be charged with blown air or suction air are.
- Sheet guiding devices of the specified type should be in Printing machines the printed sheets when transporting one printing unit to the next or to the delivery without greasing to lead. To do this, the arches are applied with blown air and suction air when passing through the transport path stabilized and through the formation of suitable air cushions prevented from touching the guides.
- a sheet guiding device known from EP 0 725 025 B1 of the specified type in the sheet transport direction seen in the inlet area of a guide surface arranged nozzles depending on the processed
- Printing material optionally with suction air or with blown air acted upon and the nozzles between the inlet area and the outlet area of the guide surface arranged guide zone are blown with air, at least some of the nozzles blow the air essentially tangentially to the surface of the guide surface.
- the Guiding surfaces a different, the respective air requirement have adapted area coverage with nozzles.
- the Air is supplied to the nozzles via fans, their Speed for setting the floating guide in blowing mode and to adjust the frictional force of the bow on the guide surfaces is adjustable in suction mode. For reversing blowing operation the fans can also be operated in suction mode their direction of rotation can be switched.
- the invention has for its object in a sheet guide the strength of the blown air or suction air even in narrowly limited zones Basis weight of the substrates, the print subject and the To be able to adjust printing speed.
- this object is achieved in that the Size of the passage cross section of at least individual nozzles is adjustable.
- the invention enables zone by zone individual adjustment of the blown air or suction air flow and thus an optimal adaptation of the sheet guide to the given operating situations without it Large number of fans with adjustable speed is required.
- the nozzles through openings in the guide surface forming wall and in one facing away from the guide surface Side of the wall arranged valve element is formed be in one or more directions of extension of the Wall is movable relative to the wall, being in one position of the valve element, the openings in the wall and in the valve element at least partially overlap each other.
- the Openings in the wall and in the valve element can be congruent and arranged so that by moving the valve element around a certain one Amount the size of the passage cross section of all of that Valve element formed nozzles experience the same change can.
- Interacting openings in the wall and in Valve elements can also differ in size and shape deviate so that with a certain movement of the valve element, the nozzles formed by the openings different changes in their passage cross-section Experienced.
- For zone-by-zone adjustment of the blowing or suction air to the requirements of the sheet guide can also Uneven distribution of openings over the guide surface his.
- valve element instead of a single valve element according to the invention also two or more valve elements arranged one above the other be that have openings that are at least in one Position of the valve elements with each other and with Overlap the openings in the wall.
- the nozzle design according to the invention is suitable for both flat as well as for curved guide surfaces. Is the guide surface and thus both the wall and the valve element just executed, so instead of a linear adjustment movement also a rotation of the valve element by one Vertical axis should be appropriate.
- nozzles For connecting the nozzles to a blown air or suction air source can be on the side of the Wall mounted an air box, the interior of which the wall is limited and which receives the valve element.
- the air box can have guides for the valve element and with axial fans to supply air to the nozzles be equipped.
- the design of the nozzles according to the invention enables a flow-optimized arrangement in a simple manner linked to a blowing or suction pressure level regulation through a change in the passage cross-section that is only partially possible of the nozzles.
- a linear or rotating Movement of the valve element can exceed the pressure level the guiding surface completely or partially to the requirements adapted to the sheet guide and by uniform pressure or Vacuum distribution a better sheet guidance can be achieved.
- the printing press shown schematically in FIG. 1 has several in series arranged printing units 1, of which each of the plate cylinder 2, the blanket cylinder 3 and the double-large impression cylinder 4 are shown. Between the sheets are transported to the printing units each via transfer drums 5 or if possible there is a turning drum 6 for turning Printing cylinders of the last printing unit are through the sheets a chain gripper system 7 of a boom 8 to a boom stack 9 transported. On the transfer drums 5, the Reversing drum 6 and the chain gripper system 7 are each Sheet guiding devices 10 arranged for a Lubrication-free sheet guidance of the printed sheets ensures. Depending on the course of the Sheet transport paths curved or flat guide surfaces 11 which the arches are moved along. By feeding or suction of air via arranged in the guide surfaces 11 Nozzle-free sheet guidance is achieved.
- FIG. 2 to 4 An embodiment of a sheet guiding device 10 with flat guide surface 11 is shown in Figures 2 to 4.
- This sheet guiding device 10 consists of a for example, a flat wall made of sheet metal 12, the top of which forms the guide surface 11.
- the wall 12 has a flow-optimized arrangement Number of circular holes 13.
- On the bottom of the Wall 12 has an air box 14 attached to it.
- At the bottom of the Air box 14 there are several axial fans 15, through which either air is pressed into the air box 14 or can be sucked out of it.
- In the air box 14 is directly under the wall 12 on guide rails 16th a plate-shaped, rectangular valve element 17 in the direction of the double arrow 18 movably arranged.
- the valve element 17 has the same arrangement and the same size like the wall 12 on circular holes 19 in the in Figure 2 shown position of the valve element 17 itself completely overlap the holes 13 in the wall 12.
- the holes 13 in the wall 12 and the holes 19 in the valve element 17 together form nozzles 20 through which the air emerge from or into the interior of the air box 14 can be sucked in.
- the passage cross section of this Nozzles 20 has a complete overlap of the Holes 13 and 19 its maximum size.
- valve element 17 With the help of a motor 21 in the direction of the double arrow 18 be adjusted.
- the holes 19 are opposite the holes 13 shifted, as illustrated in Figure 4.
- the holes 13 and 19 overlap in the position shown in FIG of the valve element 17 only partially, so that the passage cross section the nozzle 20 is significantly reduced. In this way, the pressure level of the air in the space between the guide surface 11 and one on this guided arches to the needs of arch guidance be adjusted.
- valve element 17 adjusted in one direction only.
- the downsizing of the passage cross section is therefore 20 for all nozzles equal.
- the valve element 17 is additionally one axis turned perpendicular to the guiding surface, so at the different nozzle cross-sections. In this way it is also possible to set the pressure level above to influence the guide surface 11 differently in part.
- FIG. 5 Another possibility for partially different attitudes of the passage cross section of the nozzles 20 is with the hole pattern of a valve element 17 shown in FIG. 5 enables.
- holes 19 in their Size and arrangement in one position of the valve element 17 are congruent with holes 13 in the wall 12, holes 22 provided a larger cross section and partially another, namely oval shape. This gives itself when the valve element 17 moves relative to the Wall 12 at the holes 19 another change in the passage cross section than at the holes 22. This way can control the blowing or suction air zone by zone be designed differently.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Advancing Webs (AREA)
- Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
- Separation, Sorting, Adjustment, Or Bending Of Sheets To Be Conveyed (AREA)
- Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
Abstract
Description
- Figur 1
- die Anordnung der Bogenführungseinrichtungen in einer mehrere Druckwerke umfassenden Druckmaschine,
- Figur 2
- einer Draufsicht auf die Leitfläche einer erfindungsgemäßen Bogenführungseinrichtung,
- Figur 3
- einen Querschnitt entlang der Linie A-B der Bogenführungseinrichtung gemäß Figur 2,
- Figur 4
- eine schematische Darstellung des Funktionsprinzips der Bogenführungseinrichtung gemäß Figur 2 und
- Figur 5
- eine Ansicht eines Ventilelements mit hinsichtlich Größe und Form voneinander abweichenden Öffnungen.
Claims (10)
- Bogenführungseinrichtung für eine Druckmaschine mit einer sich längs der Bogenbahn erstreckenden Leitfläche und mit in der Leitfläche vorgesehenen Düsen, die mit Blasluft oder Saugluft beaufschlagbar sind, dadurch gekennzeichnet, daß die Größe des Durchtrittsquerschnitts zumindest einzelner Düsen (20) einstellbar ist.
- Bogenführungseinrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Düsen (20) durch Öffnungen (13. 19) in einer die Leitfläche (11) bildenden Wand (12) und in einem auf der der Leitfläche (11) abgekehrten Seite der Wand (12) angeordneten Ventilelement (17) gebildet sind, das in einer oder mehreren Erstreckungsrichtungen der Wand (12) relativ zu dieser bewegbar ist, wobei in einer Stellung des Ventilelements Öffnungen (13, 19) in der Wand (12) und im Ventilelement (17) zumindest teilweise einander überschneiden.
- Bogenführungseinrichtung nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, daß Öffnungen (13, 19) in der Wand (12) und im Ventilelement (17) in einer Stellung des Ventilelements (17) deckungsgleich ausgebildet und angeordnet sind.
- Bogenführungseinrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß zusammenwirkende Öffnungen (13, 19) in der Wand (12) und im Ventilelement (17) können aber auch in ihrer Größe und Form voneinander abweichen.
- Bogenführungseinrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Verteilung der Öffnungen (13, 19) über die Leitfläche (11) ungleichmäßig ist.
- Bogenführungseinrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Ventilelement (17) gegenüber der Wand (12) drehbar ist.
- Bogenführungseinrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß zwei oder mehr Ventilelemente übereinander angeordnet sind, deren Öffnungen zumindest in einer Stellung der Ventilelemente sich miteinander und mit den Öffnungen (13) der Wand (12) überschneiden.
- Bogenführungseinrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß auf der der Leitfläche (11) abgekehrten Seite der Wand (12) ein Luftkasten (14) angebracht ist, dessen Innenraum durch die Wand (12) begrenzt wird und der das Ventilelement (17) aufnimmt.
- Bogenführungseinrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Luftkasten (14) Führungen (16) für das Ventilelement (17) aufweist.
- Bogenführungseinrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Luftkasten (14) Axialventilatoren (15) zur Luftversorgung der Düsen (20) aufweist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19857745A DE19857745A1 (de) | 1998-12-15 | 1998-12-15 | Bogenführungseinrichtung für eine Druckmaschine |
DE19857745 | 1998-12-15 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1010525A1 true EP1010525A1 (de) | 2000-06-21 |
EP1010525B1 EP1010525B1 (de) | 2004-01-02 |
Family
ID=7891096
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99123746A Revoked EP1010525B1 (de) | 1998-12-15 | 1999-11-30 | Bogenführungseinrichtung für eine Druckmaschine |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1010525B1 (de) |
AT (1) | ATE257083T1 (de) |
DE (2) | DE19857745A1 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103253007A (zh) * | 2012-02-21 | 2013-08-21 | 富士胶片株式会社 | 用纸输送装置以及喷墨记录装置 |
DE102022127685A1 (de) | 2022-10-20 | 2024-04-25 | Koenig & Bauer Ag | Trag- oder Leitvorrichtung |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10131607A1 (de) | 2000-07-28 | 2002-02-07 | Heidelberger Druckmasch Ag | Ausleger einer flächige Bedruckstoffe verarbeitenden Maschine |
DE10133633A1 (de) | 2000-08-31 | 2002-03-14 | Heidelberger Druckmasch Ag | Leit-und Tragelemente mit gedrosselter Blasluft |
DE10042888A1 (de) | 2000-08-31 | 2002-03-14 | Heidelberger Druckmasch Ag | Bogenleiteinrichtung |
US7513499B2 (en) | 2004-05-04 | 2009-04-07 | Heidelberger Druckmaschinen Ag | Sheet brake using a partitioned blower nozzle array |
WO2007065673A1 (de) * | 2005-12-07 | 2007-06-14 | Goller Textilmaschinen Gmbh | Einstellbare düse |
DE102017217660A1 (de) | 2016-11-02 | 2018-05-03 | Heidelberger Druckmaschinen Ag | Bogentransportelement mit integriertem Absperrschiebersystem für Saugöffnungen |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4173301A (en) * | 1977-02-18 | 1979-11-06 | Siemens Aktiengesellschaft | Pneumatic brake |
EP0165377A1 (de) * | 1984-06-16 | 1985-12-27 | Werner H. K. Peters Maschinenfabrik GmbH | Vorrichtung zur Erzeugung eines Über- oder eines Unterdrucks auf eine in Längsrichtung geförderte Papierbahn, insbesonder in einer Wellpappenanlage |
EP0725025A2 (de) * | 1995-02-01 | 1996-08-07 | Heidelberger Druckmaschinen Aktiengesellschaft | Bogenleiteinrichtung für Druckmaschinen |
US5634636A (en) * | 1996-01-11 | 1997-06-03 | Xerox Corporation | Flexible object handling system using feedback controlled air jets |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT362227B (de) * | 1979-07-02 | 1981-04-27 | Andritz Ag Maschf | Materialbahntrockner |
-
1998
- 1998-12-15 DE DE19857745A patent/DE19857745A1/de not_active Withdrawn
-
1999
- 1999-11-30 DE DE59908193T patent/DE59908193D1/de not_active Revoked
- 1999-11-30 EP EP99123746A patent/EP1010525B1/de not_active Revoked
- 1999-11-30 AT AT99123746T patent/ATE257083T1/de not_active IP Right Cessation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4173301A (en) * | 1977-02-18 | 1979-11-06 | Siemens Aktiengesellschaft | Pneumatic brake |
EP0165377A1 (de) * | 1984-06-16 | 1985-12-27 | Werner H. K. Peters Maschinenfabrik GmbH | Vorrichtung zur Erzeugung eines Über- oder eines Unterdrucks auf eine in Längsrichtung geförderte Papierbahn, insbesonder in einer Wellpappenanlage |
EP0725025A2 (de) * | 1995-02-01 | 1996-08-07 | Heidelberger Druckmaschinen Aktiengesellschaft | Bogenleiteinrichtung für Druckmaschinen |
US5634636A (en) * | 1996-01-11 | 1997-06-03 | Xerox Corporation | Flexible object handling system using feedback controlled air jets |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103253007A (zh) * | 2012-02-21 | 2013-08-21 | 富士胶片株式会社 | 用纸输送装置以及喷墨记录装置 |
EP2631079A1 (de) * | 2012-02-21 | 2013-08-28 | Fujifilm Corporation | Papierfördervorrichtung und Tintenstrahlaufzeichnungsvorrichtung |
US8888274B2 (en) | 2012-02-21 | 2014-11-18 | Fujifilm Corporation | Paper conveyance apparatus and ink jet recording apparatus |
CN103253007B (zh) * | 2012-02-21 | 2016-08-03 | 富士胶片株式会社 | 用纸输送装置以及喷墨记录装置 |
DE102022127685A1 (de) | 2022-10-20 | 2024-04-25 | Koenig & Bauer Ag | Trag- oder Leitvorrichtung |
Also Published As
Publication number | Publication date |
---|---|
DE59908193D1 (de) | 2004-02-05 |
DE19857745A1 (de) | 2000-06-29 |
EP1010525B1 (de) | 2004-01-02 |
ATE257083T1 (de) | 2004-01-15 |
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