EP1834912A2 - Guide for the suspended transport of sheet material in a processing machine - Google Patents

Guide for the suspended transport of sheet material in a processing machine Download PDF

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Publication number
EP1834912A2
EP1834912A2 EP07004979A EP07004979A EP1834912A2 EP 1834912 A2 EP1834912 A2 EP 1834912A2 EP 07004979 A EP07004979 A EP 07004979A EP 07004979 A EP07004979 A EP 07004979A EP 1834912 A2 EP1834912 A2 EP 1834912A2
Authority
EP
European Patent Office
Prior art keywords
nozzles
guide surface
nozzle
conveying direction
sheet material
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
EP07004979A
Other languages
German (de)
French (fr)
Other versions
EP1834912A3 (en
EP1834912B1 (en
Inventor
Frank Hildebrandt
Frank Seidel
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
Application filed by MAN Roland Druckmaschinen AG filed Critical MAN Roland Druckmaschinen AG
Publication of EP1834912A2 publication Critical patent/EP1834912A2/en
Publication of EP1834912A3 publication Critical patent/EP1834912A3/en
Application granted granted Critical
Publication of EP1834912B1 publication Critical patent/EP1834912B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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
    • B65H29/02—Delivering or advancing articles from machines; Advancing articles to or into piles by mechanical grippers engaging the leading edge only of the articles
    • B65H29/04—Delivering or advancing articles from machines; Advancing articles to or into piles by mechanical grippers engaging the leading edge only of the articles the grippers being carried by endless chains or bands
    • B65H29/041—Delivering or advancing articles from machines; Advancing articles to or into piles by mechanical grippers engaging the leading edge only of the articles the grippers being carried by endless chains or bands and introducing into a pile
    • 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
    • B65H29/24—Delivering or advancing articles from machines; Advancing articles to or into piles by air blast or suction apparatus
    • B65H29/245—Air blast devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2406/00—Means using fluid
    • B65H2406/10—Means using fluid made only for exhausting gaseous medium
    • B65H2406/11—Means using fluid made only for exhausting gaseous medium producing fluidised bed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2406/00—Means using fluid
    • B65H2406/10—Means using fluid made only for exhausting gaseous medium
    • B65H2406/11—Means using fluid made only for exhausting gaseous medium producing fluidised bed
    • B65H2406/112—Means using fluid made only for exhausting gaseous medium producing fluidised bed for handling material along preferably rectilinear path, e.g. nozzle bed for web
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2406/00—Means using fluid
    • B65H2406/10—Means using fluid made only for exhausting gaseous medium
    • B65H2406/11—Means using fluid made only for exhausting gaseous medium producing fluidised bed
    • B65H2406/113—Details of the part distributing the air cushion
    • B65H2406/1132—Multiple nozzles arrangement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/11—Dimensional aspect of article or web
    • B65H2701/113—Size
    • B65H2701/1131—Size of sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/13—Parts concerned of the handled material
    • B65H2701/132—Side portions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2801/00—Application field
    • B65H2801/03—Image reproduction devices
    • B65H2801/21—Industrial-size printers, e.g. rotary printing press

Definitions

  • the invention relates to a guide for sheet material in a processing machine, in particular a printing press or coating machine, according to the preamble of the independent claims.
  • a guide of this kind is made DE 44 27 448 A1 for the contactless guiding of sheet material in a printing press.
  • the guide can be embodied in various arrangements of air nozzles, especially slot nozzles, in a guide surface.
  • air-jet nozzles are arranged in the conveying direction of the sheet material along an imaginary center line of the guide surface, the blow jets of which are directed essentially in the direction of conveyance.
  • air-jet nozzles arranged in mirror image whose jets are directed to the side edges of the guide surface.
  • Out DE 42 09 067 A1 is another sheet guiding device with air nozzles in a guide surface known.
  • the air-jet nozzles have different blowing directions, wherein the nozzles are formed in the middle region in the form of a polygon and outward in the direction of the side edges in a zig-zag arrangement.
  • additional blowing nozzles are arranged, whose jet jets exit perpendicular to the guide surface.
  • On the guide surface blocking rods are arranged in the region of the side edges, which are intended to counteract the outflow of the respective main flow.
  • blowers are arranged on the side edges, whose blow jet is directed against the outflowing main flow.
  • the invention is based on the object to provide a guide of the type mentioned above, which allows a contactless guidance of sheet material with different format or grammage on a guide surface and ensures a process-stable flying height for the sheet material.
  • a first advantage is based on the fact that, starting from the center of a guide surface arranged guide surface opening into this guide surface nozzles, preferably slot nozzles, are arranged mirror images of each other, which are coupled to a Blas Kunststoff provoke and acted upon with blown air and in the direction of the two side edges of the guide surface (im Substantially transversely to the conveying direction) by means of their jets of blow to both side edges (the guide surface) each produce an outflowing Blasluftströmung (main air flow).
  • the flow behavior of the blast air flow or main air flow can be influenced in an advantageous manner by counteracting an accelerated outflow of the respective blast air flow / main air flow in the direction of the respective side edge.
  • the closed on both sides of the side edge region of the guide surface per nozzle for the Blas Kunststoffströmung / main flow
  • Each nozzle that generates a blown air flow / main air flow to the side edge region preferably designed as a slot nozzle, is assigned at least one bulkhead nozzle at a distance in the respective otherwise closed side edge of the guide surface.
  • the Schott nozzles are coupled to a Blas Kunststoff provoke and each produce a vertical plane to the guide surface Blas Kunststoffströmung, which has a Abschottfunktion against the respective, approximately horizontal Blas Kunststoff- / main air flow and thus obstructs the accelerated flow of the respective Blas Kunststoff- / main air flow to the two side edges.
  • the distance between each nozzle generating the blown air flow / main air flow and at least one associated bulkhead nozzle may be different, individually or in the conveying direction.
  • a row of nozzles for the blown air flow / main air flow is arranged in the region of the center of a guide surface in the conveying direction of the sheet material to the side edges, which are mirror images of each other (with the back facing).
  • At each two of these with their blast openings arranged in mirror image nozzles at least one coupled with a Blas Kunststoff provoke supporting nozzle is arranged, which produces a vertical, directed towards the underside of the sheet material, the sheet material supporting Blas Kunststoffströmung the plane of the guide surface.
  • the respective support nozzle is arranged in the region of a pressure sink present between the two mirror-symmetrically arranged nozzles.
  • each support nozzle is arranged centrally between each two arranged in mirror image to each other nozzles.
  • a non-contact sheet guide is supported in the pressure sink and ensures a process-stable Schwebe arrangement.
  • a third advantage is that a combined arrangement of support nozzles in the central region of the guide surface (between two mirror-inverted nozzles) and bulkhead nozzles in the respective side edge region of the guide surface can be realized to ensure contactless sheet guiding and process-stable flying height of the sheet material.
  • a sheet-fed rotary printing press with a feeder 4, with several printing units 1, a coating unit 2 and a delivery 5, being shown in the conveying direction 3 of the sheet material.
  • the printing units 1 and the coating unit 2 have known details such as plate cylinder or forme cylinder 9 and blanket cylinder 8.
  • the respective plate cylinder 9 in the printing unit 1 is assigned an inking unit and, if necessary, a dampening unit.
  • a metering system 10 preferably a chambered doctor blade with raced applicator roller assigned.
  • the blanket cylinders 8 and the forme cylinder 9 are associated with pressure cylinder 6 adjacent as a sheet guiding cylinder.
  • the feeder 4 adjacent printing unit 1 additionally has a sheet material leading transfer cylinder 12 as an investment drum.
  • the blanket cylinders 8, cylinders 9 and cylinders 6, a cleaning device 7 is preferably assigned.
  • a guide device 11 is provided for the sheet transport at locations where the sheet material from the minimum format 14 to the maximum format 15 for contact with machine parts tends.
  • a guide 11 is below the transfer cylinder 12 and in the boom 5 below the rotating Bogen overviewsysteme, if necessary in modular Stringed together, arranged.
  • a guide 11 is shown in a first embodiment in plan view.
  • This guide 11 consists of a continuous across the machine width, closed guide surface 13, which has nozzles 17 opening into the guide surface 13.
  • the coupled with a blown air source nozzles 17 are, preferably as slit nozzles, incorporated obliquely into the guide surface 13 and work on the principle of the aerodynamic paradox.
  • a slot nozzle of this kind is for example off DE 1 907 083A known.
  • the nozzle assignment of the guide surface 13 is as follows: starting from a center 18 of the guide surface 13, the nozzles 17 are mirror images of each other and with their blowing openings 21 for generating one Blas Kunststoffströmung 22 (main flow) substantially transversely (in plan view approximately at right angles) to the conveying direction arranged in the direction of a respective oppositely disposed side edge 19 of the guide surface 13.
  • the wording "transversely to the conveying direction 3" is not limited to an arrangement which is rectangular in plan view with respect to the conveying direction 3 of the nozzles 17 arranged in mirror image. Rather, this also includes in or against the conveying direction 3, directed at an angle to the side edges 19, arranged in mirror image nozzles 17 a.
  • the nozzles 17 are arranged consecutively in the conveying direction 3.
  • the nozzles 17 are arranged in an extension on the guide surface 13, which can lead a sheet material in the maximum format 15 floating.
  • Each of the respective side edge 19 directly associated nozzle 17 is assigned outside the maximum format 15 on the otherwise strip-shaped closed guide surface 13 at least one bulkhead nozzle 16 at a defined distance.
  • Each bulkhead nozzle 16 is arranged vertically with the blow opening in the guide surface 13 and also coupled to a blown air source.
  • the bulkhead nozzles 16 By means of the bulkhead nozzles 16, with reference to the surface of the guide surface 13 in the respective region of the side edge 19, a vertical blown air flow is generated which is opposite to a blown air flow 22 generated by the nozzles 17 (Main flow) for the Schwebe entry of the sheet material has a Abschottfunktion and impeded the flow of the respective Blas Kunststoffströmung 22 to the side edges 19.
  • the bulkhead nozzles 16 are arranged in the conveying direction 3 successively on the otherwise strip-shaped closed guide surface 13 aligned (in at least one row). In a further embodiment, more of these bulkhead nozzles 16 are assigned outside the maximum format 15 on the guide surface 13 at a distance of the nozzle 17 per 17 directly associated nozzle per the respective side edge 19.
  • the bulkhead nozzles 16 can be arranged with respect to the blow opening 21 of the respective nozzle 17 at a radial distance (in plan view, for example, in an ellipse / circle segment) to the blow opening 21. Taking into account that the bulkhead nozzles 16 are arranged outside the maximum format 15 on the guide surface 13, the distance between at least one bulkhead nozzle 16 and the immediately adjacent nozzle 17 can be of different sizes
  • the distance between the blowing openings 21 of the respective nozzles 17 and the associated bulkhead nozzles 16 is greater than the distance between the blowing openings 21 and the maximum pressure (in the printing carpet) of the blown air flow 22 originating from the respective blowing opening 21.
  • a guide 11 is shown in a second embodiment in plan view.
  • This guide 11 is formed analogously to FIG. 2 with a guide surface 13, nozzles 17 and the same nozzle assignment.
  • the nozzles 17 are again mirror images of each other and with their blowing openings 21 for generating the Blas Kunststoffströmung 22 (main flow) substantially transversely (in plan view approximately at right angles) to the conveying direction 3 in the direction of a respective oppositely disposed side edge 19 of the guide surface 13 arranged.
  • the nozzles 17 are again arranged successively in the conveying direction 3.
  • FIG. 4 a detail in plan view from the middle region of the guide surface 13 is shown specifically in FIG. 4.
  • a pressure sink 23 area of reduced pressure or negative pressure
  • a printing carpet with a pronounced overpressure zone for the floating guidance is formed.
  • Contrary to the Blas Kunststoffströmungen 22 is formed between the mirror-image arranged nozzles 17 in the respective pressure sink 23, a negative pressure zone.
  • each support nozzle 20 is coupled to a blown air source and has a blow opening in the guide surface 13, which generates a vertical Blas Kunststoffströmung towards the underside of the sheet material to the surface of the guide surface 13.
  • each support nozzle 20 is arranged centrally between the two nozzles 17 in the pressure sink 23.
  • the support nozzles 20 are aligned in the conveying direction 3 successively on the guide surface 13, preferably along the center line (center 18), arranged in the respective pressure sink 23.
  • the support nozzles 20 compensate for the suction effect of the pressure sink 23, which between two each with the back opposite (mirror image arranged) nozzles 17, in particular slot nozzles, forms.
  • the nozzles 17 and the bulkhead nozzles 16 can be arranged in combination with the support nozzles 20 on the guide surface 13, as described.
  • the nozzles 17, bulkhead nozzles 16 and support nozzles 20 can each be coupled to a separate blower air source supplying one or at least two or all of the nozzle types.
  • the guide surface 13 is the top surface of a box-shaped flow channel, which is coupled to a Blas Kunststoffario, for example, a plurality of fans.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)
  • Discharge By Other Means (AREA)
  • Treatment Of Fiber Materials (AREA)

Abstract

Guiding device comprises a guiding surface (13) with nozzles (17) arranged on the guiding surface across the conveying direction (3) for guiding a sheet material in a suspended manner. A further nozzle (16) is assigned to each nozzle directly on each side edge (19) outside of the maximum format. Each further nozzle is coupled with a blowing air source and is arranged with a blowing opening in the guiding surface to produce a vertical blowing air stream. Preferred Features: The further nozzles are arranged flush over each other with the guiding surface in the conveying direction.

Description

Die Erfindung betrifft eine Leiteinrichtung für Bogenmaterial in einer Verarbeitungsmaschine, insbesondere einer Druckmaschine oder Lackiermaschine, nach dem Oberbegriff der unabhängigen Ansprüche.The invention relates to a guide for sheet material in a processing machine, in particular a printing press or coating machine, according to the preamble of the independent claims.

Eine Leiteinrichtung dieser Art ist aus DE 44 27 448 A1 zum berührungsfreien Führen von Bogenmaterial in einer Druckmaschine bekannt. Die Leiteinrichtung kann in verschiedene Anordnungen von Luftblasdüsen, speziell Schlitzdüsen, in einer Leitfläche ausgeführt sein. So sind in einer Ausbildung Luftblasdüsen in Förderrichtung des Bogenmaterials entlang einer gedachten Mittellinie der Leitfläche angeordnet, deren Blasstrahlen im Wesentlichen in Förderichtung gerichtet sind. Weiterhin sind quer zur Förderrichtung des Bogenmaterials, mit Bezug zur gedachten Mittellinie, Luftblasdüsen spiegelbildlich angeordnet, deren Blasstrahlen zu den Seitenrändern der Leitfläche gerichtet sind.A guide of this kind is made DE 44 27 448 A1 for the contactless guiding of sheet material in a printing press. The guide can be embodied in various arrangements of air nozzles, especially slot nozzles, in a guide surface. Thus, in one embodiment, air-jet nozzles are arranged in the conveying direction of the sheet material along an imaginary center line of the guide surface, the blow jets of which are directed essentially in the direction of conveyance. Furthermore, transversely to the conveying direction of the sheet material, with respect to the imaginary center line, air-jet nozzles arranged in mirror image whose jets are directed to the side edges of the guide surface.

Aus DE 42 09 067 A1 ist eine weitere Bogenleiteinrichtung mit Luftblasdüsen in einer Leitfläche bekannt. Die Luftblasdüsen weisen unterschiedliche Blasrichtungen auf, wobei die Düsen im Mittenbereich in Form eines Polygons und nach Außen in Richtung der Seitenränder in Zick-Zack-Anordnung ausgebildet sind. Im Mittenbereich sind zusätzlich Blasdüsen angeordnet, deren Blasstrahlen senkrecht zur Leitfläche austreten. Auf der Leitfläche sind im Bereich der Seitenkanten Sperrstäbe angeordnet, die dem Abfließen der jeweiligen Hauptströmung entgegen wirken sollen. Alternativ sind an den Seitenkanten Bläser angeordnet, deren Blasstrahl gegen die abfließende Hauptströmung gerichtet ist.Out DE 42 09 067 A1 is another sheet guiding device with air nozzles in a guide surface known. The air-jet nozzles have different blowing directions, wherein the nozzles are formed in the middle region in the form of a polygon and outward in the direction of the side edges in a zig-zag arrangement. In the middle area, additional blowing nozzles are arranged, whose jet jets exit perpendicular to the guide surface. On the guide surface blocking rods are arranged in the region of the side edges, which are intended to counteract the outflow of the respective main flow. Alternatively, blowers are arranged on the side edges, whose blow jet is directed against the outflowing main flow.

Der Erfindung liegt die Aufgabe zu Grunde, eine Leiteinrichtung der eingangs genannten Art zu schaffen, die eine berührungsfreie Führung von Bogenmaterial mit unterschiedlichem Format bzw. Grammatur über eine Leitfläche gestattet und eine prozessstabile Schwebehöhe für das Bogenmaterial gewährleistet.The invention is based on the object to provide a guide of the type mentioned above, which allows a contactless guidance of sheet material with different format or grammage on a guide surface and ensures a process-stable flying height for the sheet material.

Gelöst wird die Aufgabe durch die Ausbildungsmerkmale der unabhängigen Patentansprüche. Weiterbildungen ergeben sich aus den abhängigen Ansprüchen.The problem is solved by the training features of the independent claims. Further developments emerge from the dependent claims.

Ein erster Vorteil ist darin begründet, dass ausgehend von der Mitte einer gestellfest angeordneten Leitfläche in diese Leitfläche mündende Düsen, bevorzugt Schlitzdüsen, spiegelbildlich zueinander angeordnet sind, die mit einer Blasluftquelle gekoppelt und mit Blasluft beaufschlagbar sind sowie in Richtung der beiden Seitenränder der Leitfläche (im Wesentlichen quer zur Förderrichtung) mittels ihrer Blasstrahlen nach beiden Seitenrändern (der Leitfläche) je eine abfließende Blasluftströmung (Hauptluftströmung) erzeugen. Durch diese annähernd horizontalen Blasluftströmungen (Hauptströmungen) zwischen der Oberfläche der Leitfläche und der Unterseite des Bogenmaterials in Richtung der Seitenränder wird in einer definierten Schwebehöhe das Bogenmaterial an einer Bogenkante mittels Bogenhaltemitteln, beispielsweise im Greiferschluss, berührungsfrei über die gestellfeste Leitfläche geführt.A first advantage is based on the fact that, starting from the center of a guide surface arranged guide surface opening into this guide surface nozzles, preferably slot nozzles, are arranged mirror images of each other, which are coupled to a Blasluftquelle and acted upon with blown air and in the direction of the two side edges of the guide surface (im Substantially transversely to the conveying direction) by means of their jets of blow to both side edges (the guide surface) each produce an outflowing Blasluftströmung (main air flow). By this approximately horizontal Blasluftströmungen (main flows) between the surface of the guide surface and the underside of the sheet material in the direction of the side edges of the sheet material is guided at a sheet edge by sheet holding means, for example in the gripper closure, contactlessly over the frame-fixed guide surface in a defined fly height.

Es wurde gefunden, dass das Strömungsverhalten der Blasluftströmung bzw. Hauptluftströmung in vorteilhafter Weise beeinflusst werden kann, indem einem beschleunigten Abfließen der jeweiligen Blasluftströmung / Hauptluftströmung in Richtung des jeweiligen Seitenrandes entgegen gewirkt wird.
Hierbei ist im an sich geschlossenen, beidseitigen Seitenrandbereich der Leitfläche pro Düse (für die Blasluftströmung/Hauptströmung) zumindest eine, in einem Abstand angeordnete Schottdüse auf der Leitfläche außerhalb des Maximalformates des Bogenmaterials in Förderrichtung angeordnet. Jeder eine Blasluftströmung / Hauptluftströmung zum Seitenrandbereich erzeugenden, vorzugsweise als Schlitzdüse ausgebildeten Düse ist zumindest eine Schottdüse in einem Abstand im jeweiligen ansonsten geschlossenen Seitenrand der Leitfläche unmittelbar zugeordnet. Die Schottdüsen sind mit einer Blasluftquelle gekoppelt und erzeugen jeweils eine zur Ebene der Leitfläche vertikale Blasluftströmung, welche gegenüber der jeweiligen, annähernd horizontalen Blasluft-/Hauptluftströmung eine Abschottfunktion aufweist und somit das beschleunigte Abfließen der jeweiligen Blasluft-/Hauptluftströmung nach den beiden Seitenrändern behindert. Dabei kann der Abstand zwischen jeder die Blasluftströmung / Hauptluftströmung erzeugenden Düse und wenigstens einer zugeordneten Schottdüse einzeln oder in Förderrichtung betrachtet unterschiedlich sein.It has been found that the flow behavior of the blast air flow or main air flow can be influenced in an advantageous manner by counteracting an accelerated outflow of the respective blast air flow / main air flow in the direction of the respective side edge.
Here, in the closed on both sides of the side edge region of the guide surface per nozzle (for the Blasluftströmung / main flow) at least one, arranged at a distance bulkhead nozzle on the guide surface outside the maximum format of the sheet material in the conveying direction. Each nozzle that generates a blown air flow / main air flow to the side edge region, preferably designed as a slot nozzle, is assigned at least one bulkhead nozzle at a distance in the respective otherwise closed side edge of the guide surface. The Schott nozzles are coupled to a Blasluftquelle and each produce a vertical plane to the guide surface Blasluftströmung, which has a Abschottfunktion against the respective, approximately horizontal Blasluft- / main air flow and thus obstructs the accelerated flow of the respective Blasluft- / main air flow to the two side edges. In this case, the distance between each nozzle generating the blown air flow / main air flow and at least one associated bulkhead nozzle may be different, individually or in the conveying direction.

Als zweiter Vorteil kann angeführt werden, dass im Bereich der Mitte einer Leitfläche in Förderrichtung des Bogenmaterials je eine Reihe Düsen für die Blasluftströmung / Hauptluftströmung zu den Seitenrändern angeordnet ist, die spiegelbildlich zueinander (mit der Rückseite gegenüberstehend) ausgebildet sind. Zwischen jeweils zwei dieser mit ihren Blasöffnungen spiegelbildlich angeordneten Düsen ist wenigstens eine mit einer Blasluftquelle gekoppelte Stützdüse angeordnet, die zur Ebene der Leitfläche eine vertikale, in Richtung Unterseite des Bogenmaterials gerichtete, das Bogenmaterial stützende Blasluftströmung erzeugt. Die jeweilige Stützdüse ist im Bereich einer zwischen den beiden spiegelbildlich zueinander angeordneten Düsen vorliegenden Drucksenke angeordnet. Bevorzugt ist jede Stützdüse zentrisch zwischen je zwei spiegelbildlich zu einander angeordneten Düsen angeordnet. Mittels der Blasluftströmung aus den Stützdüsen wird eine berührungsfreie Bogenführung im Bereich der Drucksenke unterstützt und eine prozessstabile Schwebeführung gewährleistet.As a second advantage, it can be stated that a row of nozzles for the blown air flow / main air flow is arranged in the region of the center of a guide surface in the conveying direction of the sheet material to the side edges, which are mirror images of each other (with the back facing). Between each two of these with their blast openings arranged in mirror image nozzles at least one coupled with a Blasluftquelle supporting nozzle is arranged, which produces a vertical, directed towards the underside of the sheet material, the sheet material supporting Blasluftströmung the plane of the guide surface. The respective support nozzle is arranged in the region of a pressure sink present between the two mirror-symmetrically arranged nozzles. Preferably, each support nozzle is arranged centrally between each two arranged in mirror image to each other nozzles. By means of the Blasluftströmung from the support nozzles a non-contact sheet guide is supported in the pressure sink and ensures a process-stable Schwebeführung.

Ein dritter Vorteil besteht darin, dass eine kombinierte Anordnung von Stützdüsen im Mittenbereich der Leitfläche (zwischen zwei spiegelbildlich angeordneten Düsen) und von Schottdüsen im jeweiligen Seitenrandbereich der Leitfläche realisierbar ist, um eine berührungsfreie Bogenführung sowie prozessstabile Schwebehöhe des Bogenmaterials zu gewährleisten.A third advantage is that a combined arrangement of support nozzles in the central region of the guide surface (between two mirror-inverted nozzles) and bulkhead nozzles in the respective side edge region of the guide surface can be realized to ensure contactless sheet guiding and process-stable flying height of the sheet material.

Die Erfindung soll an einem Ausführungsbeispiel näher erläutert werden. Dabei zeigen schematisch:

Fig. 1
eine Bogendruckmaschine mit Leiteinrichtungen,
Fig. 2
eine Leiteinrichtung in erster Ausbildung,
Fig. 3
eine Leiteinrichtung in zweiter Ausbildung,
Fig. 4
den mittleren Bereich einer Leitfläche der Leiteinrichtung,
Fig. 5
den mittleren und seitlichen Bereich einer Leitfläche der Leiteinrichtung.
The invention will be explained in more detail using an exemplary embodiment. Here are shown schematically:
Fig. 1
a sheet-fed printing machine with guide devices,
Fig. 2
a guide in the first training,
Fig. 3
a guide in second education,
Fig. 4
the central region of a guide surface of the guide,
Fig. 5
the middle and side region of a guide surface of the guide.

Gemäß Fig. 1 ist beispielhaft eine Bogenrotationsdruckmaschine mit einem Anleger 4, mit in Förderrichtung 3 des Bogenmaterials mehreren Druckwerken 1, einem Lackwerk 2 und einem Ausleger 5 dargestellt. Die Druckwerke 1 sowie das Lackwerk 2 weisen an sich bekannte Einzelheiten wie Plattenzylinder bzw. Formzylinder 9 und Gummituchzylinder 8 auf. Dem jeweiligen Plattenzylinder 9 im Druckwerk 1 ist ein Farbwerk und bei Bedarf ein Feuchtwerk zugeordnet. Im Lackwerk 2 ist dem Formzylinder 9 ein Dosiersystem 10, vorzugsweise ein Kammerrakel mit gerasteter Auftragwalze, zugeordnet. Den Gummituchzylindern 8 bzw. dem Formzylinder 9 sind Druckzylinder 6 als Bogenführungszylinder benachbart zugeordnet. Zwischen den Druckzylindern 6 sind Transferzylinder 12 als Bogenführungszylinder für den Bogentransport angeordnet. Das dem Anleger 4 benachbarte Druckwerk 1 weist zusätzlich einen Bogenmaterial führenden Transferzylinder 12 als Anlagetrommel auf. Den Gummituchzylindern 8, Formzylindern 9 sowie Druckzylindern 6 ist bevorzugt eine Reinigungsvorrichtung 7 zugeordnet.1, by way of example, a sheet-fed rotary printing press with a feeder 4, with several printing units 1, a coating unit 2 and a delivery 5, being shown in the conveying direction 3 of the sheet material. The printing units 1 and the coating unit 2 have known details such as plate cylinder or forme cylinder 9 and blanket cylinder 8. The respective plate cylinder 9 in the printing unit 1 is assigned an inking unit and, if necessary, a dampening unit. In the coating unit 2 is the form cylinder 9, a metering system 10, preferably a chambered doctor blade with raced applicator roller assigned. The blanket cylinders 8 and the forme cylinder 9 are associated with pressure cylinder 6 adjacent as a sheet guiding cylinder. Between the printing cylinders 6 transfer cylinder 12 are arranged as a sheet guiding cylinder for the sheet transport. The feeder 4 adjacent printing unit 1 additionally has a sheet material leading transfer cylinder 12 as an investment drum. The blanket cylinders 8, cylinders 9 and cylinders 6, a cleaning device 7 is preferably assigned.

In Förderrichtung 3 ist für den Bogentransport an Stellen an denen das Bogenmaterial vom Minimalformat 14 bis zum Maximalformat 15 zum Kontakt mit Maschinenteilen neigt eine Leiteinrichtung 11 vorgesehen. Im vorliegenden Beispiel ist eine derartige Leiteinrichtung 11 unterhalb der Transferzylinder 12 sowie im Ausleger 5 unterhalb der umlaufenden Bogenfördersysteme, bei Bedarf in modularer Aneinanderreihung, angeordnet.In the conveying direction 3, a guide device 11 is provided for the sheet transport at locations where the sheet material from the minimum format 14 to the maximum format 15 for contact with machine parts tends. In the present example, such a guide 11 is below the transfer cylinder 12 and in the boom 5 below the rotating Bogenfördersysteme, if necessary in modular Stringed together, arranged.

In Fig. 2 ist eine Leiteinrichtung 11 in einer ersten Ausbildung in Draufsicht gezeigt. Diese Leiteinrichtung 11 besteht aus einer durchgängig über die Maschinenbreite angeordneten, geschlossenen Leitfläche 13, welche in die Leitfläche 13 mündende Düsen 17 aufweist. Die mit einer Blasluftquelle gekoppelten Düsen 17 sind, bevorzugt als Schlitzdüsen, schräg in die Leitfläche 13 eingearbeitet und arbeiten nach dem Prinzip des aerodynamischen Paradoxons. Eine Schlitzdüse dieser Art ist beispielsweise aus DE 1 907 083A bekannt.In Fig. 2, a guide 11 is shown in a first embodiment in plan view. This guide 11 consists of a continuous across the machine width, closed guide surface 13, which has nozzles 17 opening into the guide surface 13. The coupled with a blown air source nozzles 17 are, preferably as slit nozzles, incorporated obliquely into the guide surface 13 and work on the principle of the aerodynamic paradox. A slot nozzle of this kind is for example off DE 1 907 083A known.

Die Düsenbelegung der Leitfläche 13 ist wie folgt: Ausgehend von einer Mitte 18 der Leitfläche 13 sind die Düsen 17 zueinander spiegelbildlich und mit ihren Blasöffnungen 21 zur Erzeugung von je einer Blasluftströmung 22 (Hauptströmung) im Wesentlichen quer (in Draufsicht annähernd rechtwinklig) zur Förderichtung 3 in Richtung eines jeweils entgegengesetzt angeordneten Seitenrandes 19 der Leitfläche 13 angeordnet. Die Formulierung "quer zur Förderrichtung 3" ist nicht auf eine in Draufsicht rechtwinklige Anordnung zur Förderrichtung 3 der spiegelbildlich angeordneten Düsen 17 beschränkt. Vielmehr schließt diese auch in oder gegen die Förderrichtung 3, in einem Winkel zu den Seitenrändern 19 gerichtete, spiegelbildlich angeordnete Düsen 17 ein. Auf der Leitfläche. 13 sind in Förderrichtung 3 die Düsen 17 aufeinander folgend angeordnet.The nozzle assignment of the guide surface 13 is as follows: starting from a center 18 of the guide surface 13, the nozzles 17 are mirror images of each other and with their blowing openings 21 for generating one Blasluftströmung 22 (main flow) substantially transversely (in plan view approximately at right angles) to the conveying direction arranged in the direction of a respective oppositely disposed side edge 19 of the guide surface 13. The wording "transversely to the conveying direction 3" is not limited to an arrangement which is rectangular in plan view with respect to the conveying direction 3 of the nozzles 17 arranged in mirror image. Rather, this also includes in or against the conveying direction 3, directed at an angle to the side edges 19, arranged in mirror image nozzles 17 a. On the guide surface. 13, the nozzles 17 are arranged consecutively in the conveying direction 3.

Im Wesentlichen quer zur Förderrichtung 3 sind auf der Leitfläche 13 die Düsen 17 in einer Erstreckung angeordnet, die ein Bogenmaterial im Maximalformat 15 schwebend führen können. Jeder dem jeweiligen Seitenrand 19 unmittelbar zugeordneten Düse 17 ist außerhalb des Maximalformates 15 auf der ansonsten streifenförmig geschlossenen Leitfläche 13 zumindest eine Schottdüse 16 in einem definierten Abstand zugeordnet. Jede Schottdüse 16 ist dabei vertikal mit der Blasöffnung in der Leitfläche 13 angeordnet und ebenso mit einer Blasluftquelle gekoppelt. Mittels der Schottdüsen 16 wird mit Bezug zur Oberfläche der Leitfläche 13 im jeweiligen Bereich des Seitenrandes 19 eine vertikale Blasluftströmung erzeugt, die gegenüber einer von den Düsen 17 erzeugten Blasluftströmung 22 (Hauptströmung) für die Schwebeführung des Bogenmaterials eine Abschottfunktion aufweist und das Abfließen der jeweiligen Blasluftströmung 22 zu den Seitenrändern 19 behindert. Bevorzugt sind die Schottdüsen 16 in Förderrichtung 3 aufeinander folgend auf der ansonsten streifenförmig geschlossenen Leitfläche 13 fluchtend (in wenigstens einer Reihe) angeordnet. In einer weiteren Ausbildung sind pro dem jeweiligen Seitenrand 19 unmittelbar zugeordneter Düse 17 mehrere dieser Schottdüsen 16 außerhalb des Maximalformates 15 auf der Leitfläche 13 in einem Abstand der Düse 17 zugeordnet. Die Schottdüsen 16 können mit Bezug zur Blasöffnung 21 der jeweiligen Düse 17 in einem radialen Abstand (in Draufsicht beispielsweise in einem Ellipsen-/Kreissegment) zur Blasöffnung 21 angeordnet sein. Unter Berücksichtigung, dass die Schottdüsen 16 außerhalb des Maximalformates 15 auf der Leitfläche 13 angeordnet sind, kann der Abstand zwischen wenigstens einer Schottdüse 16 und der unmittelbar benachbart angeordneten Düse 17 unterschiedlich groß seinSubstantially transversely to the conveying direction 3, the nozzles 17 are arranged in an extension on the guide surface 13, which can lead a sheet material in the maximum format 15 floating. Each of the respective side edge 19 directly associated nozzle 17 is assigned outside the maximum format 15 on the otherwise strip-shaped closed guide surface 13 at least one bulkhead nozzle 16 at a defined distance. Each bulkhead nozzle 16 is arranged vertically with the blow opening in the guide surface 13 and also coupled to a blown air source. By means of the bulkhead nozzles 16, with reference to the surface of the guide surface 13 in the respective region of the side edge 19, a vertical blown air flow is generated which is opposite to a blown air flow 22 generated by the nozzles 17 (Main flow) for the Schwebeführung of the sheet material has a Abschottfunktion and impeded the flow of the respective Blasluftströmung 22 to the side edges 19. Preferably, the bulkhead nozzles 16 are arranged in the conveying direction 3 successively on the otherwise strip-shaped closed guide surface 13 aligned (in at least one row). In a further embodiment, more of these bulkhead nozzles 16 are assigned outside the maximum format 15 on the guide surface 13 at a distance of the nozzle 17 per 17 directly associated nozzle per the respective side edge 19. The bulkhead nozzles 16 can be arranged with respect to the blow opening 21 of the respective nozzle 17 at a radial distance (in plan view, for example, in an ellipse / circle segment) to the blow opening 21. Taking into account that the bulkhead nozzles 16 are arranged outside the maximum format 15 on the guide surface 13, the distance between at least one bulkhead nozzle 16 and the immediately adjacent nozzle 17 can be of different sizes

Beim Bogentransport in Förderrichtung 3 durch die Verarbeitungsmaschine kann bedingt durch die vom Bogenmaterial erzeugte Schleppströmung die aus den Blasöffnungen 21 austretende Blasluftströmung 22 in Förderrichtung 3 zu den Seitenrändern 19 hin in einem Winkel geneigt abgelenkt werden.
In diesem Fall erfolgt die Blasluftströmung 22 nicht - wie beispielsweise in Fig. 5 gezeigt - geradlinig, sondern die Blasluftströmung 22 und der damit verbundene Druckteppich werden in Förderrichtung 3 zum jeweiligen Seitenrand 19 in je einem Winkel abgelenkt. Zur Verbesserung der Abschottfunktion kann in diesem Fall zumindest eine Schottdüse 16 mit Bezug zur Blasöffnung 21 der unmittelbar benachbarten Düse 17 in einem vorzugsweise radialen, in Förderrichtung 3 gerichteten Abstand angeordnet sein.When sheet transport in the conveying direction 3 by the processing machine can be deflected inclinedly in the conveying direction 3 to the side edges 19 out due to the drag flow generated by the sheet material emerging from the blow holes 21 Blasluftströmung 22.
In this case, the Blasluftströmung 22 is not - as shown for example in Fig. 5 - straight, but the Blasluftströmung 22 and the associated print carpet are deflected in the conveying direction 3 to the respective side edge 19 at an angle. To improve the Abschottfunktion can be arranged in this case at least one Schott nozzle 16 with respect to the blow opening 21 of the immediately adjacent nozzle 17 in a preferably radial, directed in the conveying direction 3 distance.

In bevorzugter Ausbildung ist der Abstand zwischen den Blasöffnungen 21 der jeweiligen Düsen 17 und den zugeordneten Schottdüsen 16 größer als der Abstand zwischen den Blasöffnungen 21 und dem Druckmaximum (im Druckteppich) der von der jeweiligen Blasöffnung 21 ausgehenden Blasluftströmung 22.In a preferred embodiment, the distance between the blowing openings 21 of the respective nozzles 17 and the associated bulkhead nozzles 16 is greater than the distance between the blowing openings 21 and the maximum pressure (in the printing carpet) of the blown air flow 22 originating from the respective blowing opening 21.

In Fig. 3 ist eine Leiteinrichtung 11 in einer zweiten Ausbildung in Draufsicht gezeigt. Diese Leiteinrichtung 11 ist analog zu Fig. 2 mit einer Leitfläche 13, Düsen 17 und gleicher Düsenbelegung ausgebildet.
Ausgehend von der Mitte 18 der Leitfläche 13 sind die Düsen 17 wiederum zueinander spiegelbildlich und mit ihren Blasöffnungen 21 zur Erzeugung der Blasluftströmung 22 (Hauptströmung) im Wesentlichen quer (in Draufsicht annähernd rechtwinklig) zur Förderichtung 3 in Richtung eines jeweils entgegengesetzt angeordneten Seitenrandes 19 der Leitfläche 13 angeordnet. Auf der Leitfläche 13 sind die Düsen 17 wiederum in Förderrichtung 3 aufeinander folgend angeordnet.In Fig. 3, a guide 11 is shown in a second embodiment in plan view. This guide 11 is formed analogously to FIG. 2 with a guide surface 13, nozzles 17 and the same nozzle assignment.
Starting from the middle 18 of the guide surface 13, the nozzles 17 are again mirror images of each other and with their blowing openings 21 for generating the Blasluftströmung 22 (main flow) substantially transversely (in plan view approximately at right angles) to the conveying direction 3 in the direction of a respective oppositely disposed side edge 19 of the guide surface 13 arranged. On the guide surface 13, the nozzles 17 are again arranged successively in the conveying direction 3.

Speziell in Fig. 4 ist hierzu ein Ausschnitt in Draufsicht aus dem mittleren Bereich der Leitfläche 13 gezeigt. Zwischen den jeweils beiden im Bereich der Mitte 18 spiegelbildlich zueinander benachbarten Düsen 17, d.h. mit der Rückseite gegenüberstehenden Düsen 17, ist wenigstens eine Stützdüse 20 im Bereich einer Drucksenke 23 (Gebiet mit vermindertem Druck bzw. Unterdruck) angeordnet. Durch die aus den Blasöffnungen 21 mit Bezug zur Mitte 18 spiegelbildlich nach den Seitenrändern 19 abströmenden Blasluftströmungen 22 (Hauptströmung) wird ein Druckteppich mit einer ausgeprägten Überdruckzone für die Schwebeführung gebildet. Entgegen der Blasluftströmungen 22 wird zwischen den spiegelbildlich angeordneten Düsen 17 in der jeweiligen Drucksenke 23 eine Unterdruckzone ausgebildet. Durch die Blasluft der Stützdüsen 20 wird in jeder Drucksenke 23 das Unterdruckgebiet annähernd egalisiert, so dass eine abschmierfreie Schwebeführung des Bogenmaterials auch im Bereich der Mitte 18 gewährleistet ist.For this purpose, a detail in plan view from the middle region of the guide surface 13 is shown specifically in FIG. 4. Between the respective two in the region of the center 18 mirror images of each other adjacent nozzles 17, i. With the rear side facing nozzles 17, at least one support nozzle 20 in the region of a pressure sink 23 (area of reduced pressure or negative pressure) is arranged. Through the blown air flows 22 (main flow) flowing out of the blowing openings 21 with reference to the center 18 in mirror image after the side edges 19, a printing carpet with a pronounced overpressure zone for the floating guidance is formed. Contrary to the Blasluftströmungen 22 is formed between the mirror-image arranged nozzles 17 in the respective pressure sink 23, a negative pressure zone. By the blowing air of the support nozzles 20, the negative pressure area is approximately equalized in each pressure sink 23, so that a lubrication-free Schwebeführung of the sheet material is ensured even in the area of the middle 18.

Hierzu ist jede Stützdüse 20 mit einer Blasluftquelle gekoppelt und weist eine Blasöffnung in der Leitfläche 13 auf, die zur Oberfläche der Leitfläche 13 eine vertikale Blasluftströmung in Richtung der Unterseite des Bogenmaterials erzeugt. Vorzugsweise ist jede Stützdüse 20 zentrisch zwischen beiden Düsen 17 in der Drucksenke 23 angeordnet. Bevorzugt sind die Stützdüsen 20 in Förderrichtung 3 aufeinander folgend auf der Leitfläche 13 fluchtend, vorzugsweise entlang der Mittellinie (Mitte 18), in der jeweiligen Drucksenke 23 angeordnet.
Die Stützdüsen 20 kompensieren die Sogwirkung der Drucksenke 23, die sich zwischen jeweils zwei mit der Rückseite gegenüberstehenden (spiegelbildlich angeordneten) Düsen 17, insbesondere Schlitzdüsen, ausbildet.For this purpose, each support nozzle 20 is coupled to a blown air source and has a blow opening in the guide surface 13, which generates a vertical Blasluftströmung towards the underside of the sheet material to the surface of the guide surface 13. Preferably, each support nozzle 20 is arranged centrally between the two nozzles 17 in the pressure sink 23. Preferably, the support nozzles 20 are aligned in the conveying direction 3 successively on the guide surface 13, preferably along the center line (center 18), arranged in the respective pressure sink 23.
The support nozzles 20 compensate for the suction effect of the pressure sink 23, which between two each with the back opposite (mirror image arranged) nozzles 17, in particular slot nozzles, forms.

In einer Weiterbildung können auf der Leitfläche 13 - wie beschrieben - die Düsen 17 sowie die Schottdüsen 16 in Kombination mit den Stützdüsen 20 angeordnet sein. Die Düsen 17, Schottdüsen 16 sowie Stützdüsen 20 können mit je einer separaten oder mit einer zumindest zwei oder sämtliche der Düsenarten versorgenden gemeinsamen Blasluftquelle gekoppelt sein.
In bevorzugter Ausbildung ist die Leitfläche 13 die Deckfläche eines kastenförmigen Strömungskanals, welcher mit einer Blasluftquelle, beispielsweise mehreren Lüftern, gekoppelt ist.In a further development, the nozzles 17 and the bulkhead nozzles 16 can be arranged in combination with the support nozzles 20 on the guide surface 13, as described. The nozzles 17, bulkhead nozzles 16 and support nozzles 20 can each be coupled to a separate blower air source supplying one or at least two or all of the nozzle types.
In a preferred embodiment, the guide surface 13 is the top surface of a box-shaped flow channel, which is coupled to a Blasluftquelle, for example, a plurality of fans.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

1 -1 -
Druckwerkprinting unit
2 -2 -
Lackwerkcoating unit
3 -3 -
Förderrichtungconveying direction
4 -4 -
Anlegerinvestor
5 -5 -
Auslegerboom
6 -6 -
Druckzylinder (Bogenführungszylinder)Printing cylinder (sheet guiding cylinder)
7 -7 -
Reinigungsvorrichtungcleaning device
8 -8th -
GummituchzylinderBlanket cylinder
9 -9 -
Platten-/FormzylinderPlate / form cylinder
10 -10 -
Dosiersystemdosing
11 -11 -
Leiteinrichtungguide
12 -12 -
Transferzylinder (Bogenführungszylinder)Transfer cylinder (sheet guiding cylinder)
13 -13 -
Leitflächebaffle
14 -14 -
Minimalformatminimum format
15 -15 -
Maximalformatmaximum size
16 -16 -
SchottdüseSchottdüse
17 -17 -
Düsejet
18 -18 -
Mittecenter
19 -19 -
Seitenrandmargin
20 -20 -
StützdüseStützdüse
21 -21 -
Blasöffnung (von Düse 17)Blow opening (from nozzle 17)
22 -22 -
Blasluftströmungblast air flow
23 -23 -
Drucksenkepressure sink

Claims (8)

Leiteinrichtung für Bogenmaterial in einer Verarbeitungsmaschine mit einer Leitfläche zur schwebende Führung von Bogenmaterial, wobei die ansonsten geschlossene Leitfläche von in diese Leitfläche mündenden, von mit einer Blasluftquelle gekoppelten und mittels Blasluft durchströmbaren Düsen durchsetzt ist und die Düsen in Förderrichtung aufeinander folgend und quer zur Förderrichtung ausgehend von der Mitte spiegelbildlich zueinander in Richtung der Seitenränder mittels Blasstrahlen je eine Blasluftströmung erzielend angeordnet sind,
dadurch gekennzeichnet,
dass die Düsen (17) quer zur Förderrichtung (3) auf der Leitfläche (13) in einer Erstreckung angeordnet sind, die ein Bogenmaterial im Maximalformat (15) schwebend führen,
dass jeder dem jeweiligen Seitenrand (19) unmittelbar zugeordneten Düse (17) außerhalb des Maximalformates (15) auf der ansonsten geschlossenen Leitfläche (13) zumindest eine Schottdüse (16) in einem definierten Abstand zugeordnet ist, und
dass jede Schottdüse (16) mit einer Blasluftquelle gekoppelt und mit der Blasöffnung in der Leitfläche (13) zur Erzeugung einer vertikalen Blasluftströmung angeordnet ist.Guiding device for sheet material in a processing machine with a guide surface for the floating guidance of sheet material, wherein the otherwise closed guide surface of which opens into this guide surface, interspersed with a Blasluftquelle and perfused by blowing air nozzles is penetrated and the nozzles in the conveying direction consecutively and transversely to the conveying direction from the middle of each other in the direction of the side edges are arranged mirror images of each other by means of blowing jets reaching a Blasluftströmung
characterized,
in that the nozzles (17) are arranged transversely to the conveying direction (3) on the guide surface (13) in an extent which cause a sheet material in the maximum format (15) to float,
that each of the respective side edge (19) directly associated nozzle (17) outside the maximum format (15) on the otherwise closed guide surface (13) at least one Schott nozzle (16) is assigned at a defined distance, and
in that each bulkhead nozzle (16) is coupled to a blown air source and arranged with the blow opening in the guide surface (13) for generating a vertical blown air flow. Leiteinrichtung nach Anspruch 1,
dadurch gekennzeichnet,
dass die Schottdüsen (16) in Förderrichtung (3) aufeinander folgend auf der ansonsten geschlossenen Leitfläche (13) fluchtend angeordnet sind.Guide device according to claim 1,
characterized,
that the bulkhead nozzles (16) in succession in the conveying direction (3) on the otherwise closed guiding surface (13) are arranged in alignment. Leiteinrichtung nach Anspruch 1,
dadurch gekennzeichnet,
dass pro Düse (17) mehrere Schottdüsen (16) außerhalb des Maximalformates (15) auf der Leitfläche (13) in einem Abstand angeordnet sind.Guide device according to claim 1,
characterized,
in that a plurality of bulkhead nozzles (16) are arranged at a distance from the maximum format (15) on the guide surface (13) per nozzle (17). Leiteinrichtung nach Anspruch 1 oder 3,
dadurch gekennzeichnet,
dass eine oder mehrere Schottdüsen (16) mit Bezug zur Blasöffnung (21) der Düse (17) in einem radialen Abstand angeordnet sind.Guide device according to claim 1 or 3,
characterized,
in that one or more bulkhead nozzles (16) are arranged at a radial distance with respect to the blow opening (21) of the nozzle (17). Leiteinrichtung nach Anspruch 1 oder 3,
dadurch gekennzeichnet,
dass der Abstand zwischen den Blasöffnungen (21) der jeweiligen Düsen (17) und den zugeordneten Schottdüsen (16) größer ist als der Abstand zwischen den Blasöffnungen, (21) und dem Druckmaximum der von der jeweiligen Blasöffnung (21) ausgehenden Blasluftströmung (22).Guide device according to claim 1 or 3,
characterized,
that the distance between the blow openings (21) of the respective nozzles (17) and the assigned bulkhead nozzles (16) is greater than the distance between the blow openings (21) and the pressure maximum of the respective blowing opening (21) emanating blown air stream (22) , Leiteinrichtung für Bogenmaterial in einer Verarbeitungsmaschine mit einer Leitfläche zur schwebende Führung von Bogenmaterial, wobei die ansonsten geschlossene Leitfläche von in diese Leitfläche mündenden, von mit einer Blasluftquelle gekoppelten und mittels Blasluft durchströmbaren Düsen durchsetzt ist und die Düsen in Förderrichtung aufeinander folgend und quer zur Förderrichtung ausgehend von der Mitte spiegelbildlich zueinander in Richtung der Seitenränder mittels Blasstrahlen je eine Blasluftströmung erzielend angeordnet sind,
dadurch gekennzeichnet,
dass auf der Leitfläche (13) im Bereich der Mitte (18) zwischen zwei spiegelbildlich zueinander benachbarten, jeweils in Richtung der Seitenränder (19) Blasluftströmungen (22) erzeugenden Düsen (17) im Bereich einer Drucksenke (23) wenigstens eine Stützdüse (20) angeordnet, und
dass jede Stützdüse (20) mit einer Blasluftquelle gekoppelt und mit der Blasöffnung in der Leitfläche (13) zur Erzeugung einer vertikalen Blasluftströmung angeordnet ist.Guiding device for sheet material in a processing machine with a guide surface for the floating guidance of sheet material, wherein the otherwise closed guide surface of which opens into this guide surface, interspersed with a Blasluftquelle and perfused by blowing air nozzles is penetrated and the nozzles in the conveying direction consecutively and transversely to the conveying direction from the middle of each other in the direction of the side edges are arranged mirror images of each other by means of blowing jets reaching a Blasluftströmung
characterized,
in that at least one support nozzle (20) is provided on the guide surface (13) in the area of the center (18) between two nozzles (17) generating mirror-air flows (22) in mirror image, each in the direction of the side edges (19). arranged, and
in that each support nozzle (20) is coupled to a blown air source and arranged with the blow opening in the guide surface (13) for generating a vertical blown air flow. Leiteinrichtung nach Anspruch 6,
dadurch gekennzeichnet,
dass jede Stützdüse (20) zentrisch zwischen den beiden Düsen (17) in der Drucksenke (23) angeordnet ist.Guide device according to claim 6,
characterized,
in that each support nozzle (20) is arranged centrally between the two nozzles (17) in the pressure sink (23). Leiteinrichtung nach Anspruch 6 oder 7,
dadurch gekennzeichnet,
dass jede Stützdüse (20) fluchtend in Förderrichtung (3) auf der Leitfläche (13) angeordnet ist.Guide device according to claim 6 or 7,
characterized,
that each support nozzle (20) is arranged in alignment in the conveying direction (3) on the guide surface (13).
EP07004979A 2006-03-18 2007-03-10 Sheet material processing machine with a guide for the suspended transport thereof Active EP1834912B1 (en)

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DE102006012505A DE102006012505A1 (en) 2006-03-18 2006-03-18 Guide for sheet material in a processing machine

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AT (1) ATE450465T1 (en)
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DE102006017461B4 (en) 2005-05-02 2022-06-09 Heidelberger Druckmaschinen Ag Method and device for supporting a sheet of printing material on an air cushion
DE102009028738B4 (en) 2009-08-20 2022-02-24 manroland sheetfed GmbH Sheet transport device in a processing machine and method for guiding sheet material
DE102010042928B4 (en) 2009-12-10 2019-02-28 manroland sheetfed GmbH Sheet transport device in a processing machine and method for guiding sheet material

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DK1834912T3 (en) 2010-04-19
DE102006012505A1 (en) 2007-09-20
DE502007002136D1 (en) 2010-01-14
EP1834912A3 (en) 2007-10-17
EP1834912B1 (en) 2009-12-02
ATE450465T1 (en) 2009-12-15

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