EP1010525B1 - Sheet guiding device for a printing machine - Google Patents
Sheet guiding device for a printing machine Download PDFInfo
- Publication number
- EP1010525B1 EP1010525B1 EP99123746A EP99123746A EP1010525B1 EP 1010525 B1 EP1010525 B1 EP 1010525B1 EP 99123746 A EP99123746 A EP 99123746A EP 99123746 A EP99123746 A EP 99123746A EP 1010525 B1 EP1010525 B1 EP 1010525B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- wall
- valve element
- openings
- nozzles
- guide device
- 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.)
- Revoked
Links
- 238000007664 blowing Methods 0.000 description 5
- 239000000758 substrate Substances 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
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 type specified 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 in the sheet transport direction seen in the inlet area of a guide surface arranged nozzles depending on the processed Printing material with either suction air or 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 leads 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, whose 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 restricted 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 a 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 the 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.
- an air box For connecting the nozzles to a blast air or suction air source can be on the side of the Wall an air box can be attached, 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 guidance 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 for turning, there is a turning drum 6. From 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 Arch transport path curved or flat guide surfaces 11 which the arches are moved along. By feeding or aspirating 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 this.
- 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 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 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 passed arches to the needs of arch guidance be adjusted.
- valve element 17 only adjusted in one direction.
- 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 yield to the different nozzle cross-sections. In this way it is also possible to set the pressure level above to influence the guide surface 11 partially differently.
- 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 allows.
- 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 holes 22. That 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
Die Erfindung betrifft eine 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.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.
Bogenführungseinrichtungen der angegebenen Art sollen in Druckmaschinen die bedruckten Bogen beim Transport von einem Druckwerk zum nächsten oder zum Ausleger abschmierfrei führen. Hierzu werden die Bogen durch Beaufschlagung mit Blasluft und Saugluft beim Durchlaufen der Transportbahn stabilisiert und durch die Ausbildung geeigneter Luftpolster an einer Berührung der Führungen gehindert.Sheet guiding devices of the type specified 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.
Bei einer aus der EP 0 725 025 B1 bekannten Bogenführungseinrichtung der angegebenen Art werden die, in Bogentransportrichtung gesehen, im Einlaufbereich einer Leitfläche angeordneten Düsen in Abhängigkeit vom verarbeiteten Bedruckstoff wahlweise mit Saugluft oder mit Blasluft beaufschlagt und die Düsen der zwischen dem Einlaufbereich und dem Auslaufbereich der Leitfläche angeordneten Führungszone werden mit Blasluft beaufschlagt, wobei zumindest ein Teil der Düsen die Blasluft im wesentlichen tangential zur Oberfläche der Leitfläche zuführt. Hierbei können die Leitflächen eine unterschiedliche, dem jeweiligen Luftbedarf angepaßte Flächenbelegung mit Düsen aufweisen. Die Luftversorgung der Düsen erfolgt über Ventilatoren, deren Drehzahl zur Einstellung der Schwebeführung im Blasbetrieb und zur Anpassung der Reibkraft des Bogens auf den Leitflächen im Saugbetrieb regelbar ist. Zur Umsteuerung von Blasbetrieb auf Saugbetrieb können außerdem die Ventilatoren in ihrer Drehrichtung umschaltbar sein.In 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 with either suction air or 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 leads to the surface of the guide surface. Here, the Guiding surfaces a different, the respective air requirement have adapted area coverage with nozzles. The Air is supplied to the nozzles via fans, whose 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.
Der Erfindung liegt die Aufgabe zugrunde, bei einer Bogenführung der eingangs genannten Art die Stärke der Blasluft oder Saugluft auch in eng begrenzten Zonen optimal an das Flächengewicht der Bedruckstoffe, das Drucksujet und die Druckgeschwindigkeit anpassen zu können.The invention has for its object in a sheet guide the strength of the blown air or suction air, even in narrowly restricted zones Basis weight of the substrates, the print subject and the To be able to adjust printing speed.
Erfindungsgemäß wird diese Aufgabe dadurch gelöst, daß die Größe des Durchtrittsquerschnitts zumindest einzelner Düsen einstellbar ist. Die Erfindung ermöglicht eine zonenweise individuelle Einstellung des Blasluft- oder Saugluftstroms und damit eine optimale Anpassung der Bogenführung an die jeweils gegebenen Betriebssituationen, ohne daß es einer Vielzahl von Ventilatoren mit regelbarer Drehzahl bedarf.According to the invention 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.
Gemäß einer besonders einfachen Ausgestaltung der Erfindung können die Düsen durch Öffnungen in einer die Leitfläche bildenden Wand und in einem auf der der Leitfläche abgekehrten Seite der Wand angeordneten Ventilelement gebildet sein, das in einer oder mehreren Erstreckungsrichtungen der Wand relativ zur Wand bewegbar ist, wobei in einer Stellung des Ventilelements die Öffnungen in der Wand und im Ventilelement zumindest teilweise einander überschneiden. Die Öffnungen in der Wand und im Ventilelement können hierbei deckungsgleich ausgebildet und angeordnet sein, so daß durch eine Bewegung des Ventilelements um einen bestimmten Betrag die Größe des Durchtrittsquerschnitts aller von dem Ventilelement gebildeten Düsen die gleiche Änderung erfahren kann. Zusammenwirkende Öffnungen in der Wand und im Ventilelement können aber auch in ihrer Größe und Form voneinander abweichen, so daß bei einer bestimmten Bewegung des Ventilelements die von den Öffnungen gebildeten Düsen unterschiedliche Änderungen ihres Durchtrittsquerschnitts erfahren. Zur zonenweisen Anpassung der Blas- oder Saugluft an die Erfordernisse der Bogenführung kann außerdem die Verteilung der Öffnungen über die Leitfläche ungleichmäßig sein.According to a particularly simple embodiment of the invention can the nozzles through openings in a 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 the 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.
Anstelle eines einzigen Ventilelements können erfindungsgemäß auch zwei oder mehr Ventilelemente übereinander angeordnet sein, die Öffnungen haben, die zumindest in einer Stellung der Ventilelemente sich miteinander und mit den Öffnungen der Wand überschneiden.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.
Die erfindungsgemäße Düsengestaltung eignet sich sowohl für ebene als auch für gekrümmte Leitflächen. Ist die Leitfläche und damit sowohl die Wand als auch das Ventilelement eben ausgeführt, so kann an Stelle einer linearen Einstellbewegung auch eine Drehung des Ventilelements um eine zur Leitflächenebene senkrechte Achse zweckmässig sein.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.
Zum Anschluß der Düsen an eine Blasluft- oder Saugluftquelle kann auf der der Leitfläche abgekehrten Seite der Wand ein Luftkasten angebracht sein, dessen Innenraum durch die Wand begrenzt wird und der das Ventilelement aufnimmt. Der Luftkasten kann Führungen für das Ventilelement aufweisen und mit Axialventilatoren zur Luftversorgung der Düsen ausgerüstet sein.For connecting the nozzles to a blast air or suction air source can be on the side of the Wall an air box can be attached, 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.
Die erfindungsgemäße Gestaltung der Düsen ermöglicht auf einfache Weise eine strömungstechnisch optimierte Anordnung verknüpft mit einer Blas- oder Saugdruckniveauregulierung durch eine auch nur partiell mögliche Änderung des Durchtrittsquerschnitts der Düsen. Durch eine lineare oder drehende Bewegung des Ventilelements kann das Druckniveau über der Leitfläche komplett oder partiell an die Erfordernisse der Bogenführung angepasst und duch gleichmäßige Druck- bzw. Unterdruckverteilung eine bessere Bogenführung erreicht werden.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. By 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 guidance and by uniform pressure or vacuum distribution a better sheet guidance can be achieved.
Die Erfindung wird nachfolgend anhand eines Ausführungsbeispiels näher erläutert, das in der Zeichnung dargestellt ist. Es zeigen
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.
- Figure 1
- the arrangement of the sheet guiding devices in a printing press comprising several printing units,
- Figure 2
- a plan view of the guide surface of a sheet guiding device according to the invention,
- Figure 3
- 3 shows a cross section along the line AB of the sheet guiding device according to FIG. 2,
- Figure 4
- a schematic representation of the functional principle of the sheet guiding device according to Figure 2 and
- Figure 5
- a view of a valve element with different sizes and shapes of openings.
Die in Figur 1 schematisch dargestellte Druckmaschine weist
mehrere in Reihe angeordnete Druckwerke 1 auf, von denen
jeweils der Plattenzylinder 2, der Gummituchzylinder 3 und
der doppelt große Druckzylinder 4 wiedergegeben sind. Zwischen
den Druckwerken erfolgt der Transport der Bogen
jeweils über Transfertrommeln 5 oder wenn eine Möglichkeit
zur Bogenwendung besteht über eine Wendetrommel 6. Vom
Druckzylinder des letzten Druckwerks werden die Bogen durch
ein Kettengreifersystem 7 eines Auslegers 8 zu einem Auslegerstapel
9 transportiert. An den Transfertrommeln 5, der
Wendetrommel 6 und dem Kettengreifersystem 7 sind jeweils
Bogenführungseinrichtungen 10 angeordnet, die für eine
abschmierfreie Bogenführung der bedruckten Bogen sorgen.
Die Bogenführungseinrichtungen 10 haben je nach Verlauf des
Bogentransportwegs gekrümmte oder ebene Leitflächen 11, an
denen die Bogen entlangbewegt werden. Durch das Zuführen
oder Absaugen von Luft über in den Leitflächen 11 angeordnete
Düsen wird eine berührungsfreie Bogenführung erreicht.The printing press shown schematically in FIG. 1 has
several in series arranged
Eine Ausführungsform einer Bogenführungseinrichtung 10 mit
ebener Leitfläche 11 ist in den Figuren 2 bis 4 dargestellt.
Diese Bogenführungseinrichtung 10 besteht aus einer
beispielsweise aus einem Blech hergestellten, ebenen Wand
12, deren Oberseite die Leitfläche 11 bildet. Die Wand 12
weist in strömungstechnisch optimierter Anordnung eine
Anzahl kreisrunder Löcher 13 auf. Auf der Unterseite der
Wand 12 ist ein Luftkasten 14 angebracht. An dem Boden des
Luftkastens 14 befinden sich mehrere Axialventilatoren 15,
durch die entweder Luft in den Luftkasten 14 hineingedrückt
oder aus diesem abgesaugt werden kann. In dem Luftkasten 14
ist unmittelbar unter der Wand 12 auf Führungsschienen 16
ein plattenförmiges, rechteckiges Ventilelement 17 in Richtung
des Doppelpfeils 18 bewegbar angeordnet. Das Ventilelement
17 weist in gleicher Anordnung und gleicher Größe
wie die Wand 12 kreisrunde Löcher 19 auf, die in der in
Figur 2 gezeigten Position des Ventilelements 17 sich mit
den Löchern 13 in der Wand 12 vollständig überschneiden.
Die Löcher 13 in der Wand 12 und die Löcher 19 im Ventilelement
17 bilden gemeinsam Düsen 20, durch die die Luft
aus dem Innenraum des Luftkastens 14 austreten bzw. in diesen
eingesaugt werden kann. Der Durchtrittsquerschnitt dieser
Düsen 20 hat bei vollständiger Überschneidung der
Löcher 13 und 19 seine maximale Größe. An embodiment of a sheet guiding
Zur Anpassung des durch die Düsen 20 hindurchtretenden
Blasluft- oder Saugluftstroms an die von der Druckgeschwindigkeit,
dem Bedruckstoff und dem Drucksujet abhängigen
Anforderungen der Bogenführung kann das Ventilelement 17
mit Hilfe eines Motors 21 in Richtung des Doppelpfeils 18
verstellt werden. Durch eine solche Verstellung des Ventilelements
17 werden die Löcher 19 gegenüber den Löchern 13
verschoben, wie in Figur 4 veranschaulicht. Die Löcher 13
und 19 überschneiden bei der in Figur 4 gezeigten Stellung
des Ventilelement 17 nur noch teilweise, so daß der Durchtrittsquerschnitt
der Düsen 20 erheblich verringert ist.
Auf diese Weise kann das Druckniveau der Luft in dem Zwischenraum
zwischen der Leitfläche 11 und einem an dieser
vorbeigeführten Bogen an die Bedürfnisse der Bogenführung
angepasst werden.To adjust the passage through the
Bei dem in Figur 4 gezeigten Beispiel wurde das Ventilelement
17 nur in einer Richtung verstellt. Die Verkleinerung
des Durchtrittsquerschnitts ist daher bei allen Düsen 20
gleich. Wird das Ventilelement 17 jedoch zusätzlich um eine
zur Leitfläche senkrechte Achse gedreht, so ergeben an den
einzelnen Düsen unterschiedliche Durchtrittsquerschnitte.
Auf diese Weise ist es auch möglich das Druckniveau über
der Leitfläche 11 partiell unterschiedlich zu beeinflussen.In the example shown in Figure 4, the
Eine andere Möglichkeit zur partiell unterschiedlichen Einstellung
des Durchtrittsquerschnitts der Düsen 20 wird mit
dem in Figur 5 gezeigten Lochbild eines Ventilelements 17
ermöglicht. Hierbei sind neben den Löchern 19, die in ihrer
Größe und Anordnung in einer Stellung des Ventilelements 17
mit Löchern 13 in der Wand 12 deckungsgleich sind, Löcher
22 vorgesehen, die einen Größeren Querschnitt und teilweise
eine andere, nämlich ovale Form haben. Hierdurch ergibt
sich bei einer Bewegung des Ventilelements 17 gegenüber der
Wand 12 an den Löchern 19 eine andere Änderung des Durchtrittsquerschnitts
als an den Löchern 22. Auf diese Weise
kann die Steuerung der Blas- oder Saugluft zonenweise
unterschiedlich gestaltet werden.Another possibility for partially different attitudes
of the passage cross section of the
Claims (10)
- Sheet guide device for a printing press, comprising a guide surface which extends along the sheet path and on which the sheets are guided without contact by means of sheet holding systems, and comprising nozzles which are provided in the guide surface and to which blown air or vacuum can be applied, characterized in that the size of the passage cross section of at least individual nozzles (20) can be adjusted.
- Sheet guide device according to Claim 1, characterized in that the nozzles (20) are formed by openings (14, 19) in a wall (12) that forms the guide surface (11) and in a valve element (17) which is arranged on the side of the wall (12) which faces away from the guide surface (11) and which, in one or more extending devices of the wall (12), can be moved relative to the latter, openings (13, 19) in the wall (12) and in the valve element (17) at least partly overlapping one another in one position of the valve element.
- Sheet guide device according to Claim 2, characterized in that openings (13, 19) in the wall (12) and in the valve element (17) are constructed and arranged so as to coincide in one position of the valve element (17).
- Sheet guide device according to at least Claim 2, characterized in that interacting openings (13, 19) in the wall (12) and in the valve element (17) can also differ from one another in size and shape, however.
- Sheet guide device according to at least Claim 2, characterized in that the distribution of openings (13, 19) over the guide surface (11) is non-uniform.
- Sheet guide device according to at least Claim 2, characterized in that the valve element (17) can be rotated with respect to the wall (12).
- Sheet guide device according to at least Claim 2, characterized in that two or more valve elements are arranged one above another, whose openings overlap one another and overlap the openings (13) of the wall (12), at least in one position of the valve elements.
- Sheet guide device according to at least Claim 2, characterized in that, on the side of the wall (12) which faces away from the guide surface (11), an air box (14) is fitted, the interior of which is bounded by the wall (12) and which accommodates the valve element (17).
- Sheet guide device according to at least Claim 2, characterized in that the air box (14) has guides (16) for the valve element (17).
- Sheet guide device according to at least Claim 2 , characterized in that the air box (14) has axial fans (15) for the air supply to the nozzles (20).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19857745A DE19857745A1 (en) | 1998-12-15 | 1998-12-15 | Sheet guiding device for a printing machine |
| DE19857745 | 1998-12-15 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1010525A1 EP1010525A1 (en) | 2000-06-21 |
| EP1010525B1 true EP1010525B1 (en) | 2004-01-02 |
Family
ID=7891096
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP99123746A Revoked EP1010525B1 (en) | 1998-12-15 | 1999-11-30 | Sheet guiding device for a printing machine |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP1010525B1 (en) |
| AT (1) | ATE257083T1 (en) |
| DE (2) | DE19857745A1 (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10131607A1 (en) | 2000-07-28 | 2002-02-07 | Heidelberger Druckmasch Ag | Laying-out device for machine processing flat printable material has suction cavity in form of throttle channel |
| DE10133633A1 (en) | 2000-08-31 | 2002-03-14 | Heidelberger Druckmasch Ag | System for reducing friction between support and sheets of paper in processing machine comprise compressed air outlets in surface of support, outlets being fitted with throttle system, e.g. spiral air feed |
| DE10042888A1 (en) * | 2000-08-31 | 2002-03-14 | Heidelberger Druckmasch Ag | sheet guiding device |
| US7513499B2 (en) | 2004-05-04 | 2009-04-07 | Heidelberger Druckmaschinen Ag | Sheet brake using a partitioned blower nozzle array |
| WO2007065673A1 (en) * | 2005-12-07 | 2007-06-14 | Goller Textilmaschinen Gmbh | Adjustable nozzle |
| JP5543988B2 (en) * | 2012-02-21 | 2014-07-09 | 富士フイルム株式会社 | Paper transport apparatus and ink jet recording apparatus |
| DE102017217660A1 (en) | 2016-11-02 | 2018-05-03 | Heidelberger Druckmaschinen Ag | Sheet transport element with integrated gate valve system for suction openings |
| DE102022127685A1 (en) | 2022-10-20 | 2024-04-25 | Koenig & Bauer Ag | Support or guidance device |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2707170C2 (en) * | 1977-02-18 | 1982-07-15 | Siemens AG, 1000 Berlin und 8000 München | Pneumatic brake for a recording medium |
| AT362227B (en) * | 1979-07-02 | 1981-04-27 | Andritz Ag Maschf | MATERIAL RAIL DRYER |
| DE3422413A1 (en) * | 1984-06-16 | 1985-12-19 | Werner H.K. Peters Maschinenfabrik Gmbh, 2000 Hamburg | DEVICE FOR GENERATING A PRESSURE OR A PRESSURE ON A PAPER RAIL PROMOTED IN THE LONG DIRECTION, IN PARTICULAR IN A CARDBOARD PLANT |
| DE19549589B4 (en) * | 1995-02-01 | 2005-11-17 | Heidelberger Druckmaschinen Ag | Sheet guiding device for printing machines |
| US5634636A (en) * | 1996-01-11 | 1997-06-03 | Xerox Corporation | Flexible object handling system using feedback controlled air jets |
-
1998
- 1998-12-15 DE DE19857745A patent/DE19857745A1/en not_active Withdrawn
-
1999
- 1999-11-30 DE DE59908193T patent/DE59908193D1/en not_active Revoked
- 1999-11-30 AT AT99123746T patent/ATE257083T1/en not_active IP Right Cessation
- 1999-11-30 EP EP99123746A patent/EP1010525B1/en not_active Revoked
Also Published As
| Publication number | Publication date |
|---|---|
| EP1010525A1 (en) | 2000-06-21 |
| ATE257083T1 (en) | 2004-01-15 |
| DE59908193D1 (en) | 2004-02-05 |
| DE19857745A1 (en) | 2000-06-29 |
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