WO2010026033A1 - Timed blast air in delivery unit - Google Patents

Timed blast air in delivery unit Download PDF

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Publication number
WO2010026033A1
WO2010026033A1 PCT/EP2009/060550 EP2009060550W WO2010026033A1 WO 2010026033 A1 WO2010026033 A1 WO 2010026033A1 EP 2009060550 W EP2009060550 W EP 2009060550W WO 2010026033 A1 WO2010026033 A1 WO 2010026033A1
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WO
WIPO (PCT)
Prior art keywords
air
blowing
sheet
air duct
processing machine
Prior art date
Application number
PCT/EP2009/060550
Other languages
German (de)
French (fr)
Inventor
Michael Graf
Michael Rössler
Stefan Vogel
Original Assignee
Manroland 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=41346128&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO2010026033(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Manroland Ag filed Critical Manroland Ag
Priority to CN200980134992.4A priority Critical patent/CN102171121B/en
Priority to JP2011525496A priority patent/JP2012501931A/en
Publication of WO2010026033A1 publication Critical patent/WO2010026033A1/en

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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
    • B65H29/24—Delivering or advancing articles from machines; Advancing articles to or into piles by air blast or suction apparatus
    • B65H29/245—Air blast devices
    • B65H29/246—Air blast devices acting on stacking devices
    • B65H29/247—Air blast devices acting on stacking devices blowing on upperside of the sheet
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/42—Piling, depiling, handling piles
    • B65H2301/421—Forming a pile
    • B65H2301/4212—Forming a pile of articles substantially horizontal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2513/00—Dynamic entities; Timing aspects
    • B65H2513/50—Timing
    • B65H2513/51—Sequence of process
    • 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 blowing device for a sheet delivery of a printing press for a Blas Kunststoffbeierschlagung of sheets to be deposited according to the preamble of claim 1.
  • a blown air device of the type mentioned is known from DE 196 31 814 C1. It has an assembly of interconnected blower tubes whose lateral surfaces are each provided with blown air openings from which blown air emerges, which supports the sheet storage.
  • the known Blas Kunststoffvorraum has proven itself. Nevertheless, an occasional sheet jam can not be ruled out.
  • display of lightweight sheets is difficult because their falling motion is uneven due to the presence of air bubbles below the falling sheets.
  • the bow often fall after release by the chain conveyor system umbrella-like with down-hanging edges on the delivery pile, as the air cushion degrades relatively slowly in the arc center. The bows can then be poorly aligned or be designed kinked or hinder subsequent bows. This deficiency can not be remedied with the known device, since the blast air effect is adjusted more or less evenly over the surface of the delivery stack because of the connection of the blast pipes.
  • the invention is therefore based on the object to provide a blown air device of the type mentioned above, which improves the delivery of the sheet.
  • the blast air device shows air guide tubes, which can be specifically controlled, in order to avoid in particular a region-wise and temporarily reinforced depressions of forming elevations in the sheet material when depositing the sheets. That is, there is a risk that such increases in the sheet material form could provide, so individually adjustable air ducts for an individual blowing of such an increase, with the result that the increase does not form, so that the sheet material can be stored better with the device according to the invention.
  • the invention includes the possibility that more than one air duct is provided, so that a corresponding number of preferably substantially reinforced inflatable areas of a sheet to be deposited can be blown in each case with at least one blown air jet. Therefore, it is preferably provided that a position-fixed blowing according to the subject matter of DE 196 31 814 C1 or a corresponding fixed blowing is performed.
  • At least one blowpipe which has at least one air outlet opening in its lateral surface.
  • This blowpipe is used in combination with the at least one air duct according to the invention, wherein the blowpipe having at least one air outlet opening on its jacket surface is rigid and is arranged fixed or adjustable, but at the same time can be specifically controlled with respect to its blown air duct.
  • Figure 1 is a plan view of a sheet delivery with blown air device
  • FIG. 2 is a front view of FIG. 1.
  • the blown air device 1 has a blower device 5 with fan elements 6 that is known per se and has a substantially planar action.
  • the fan elements 6 can be designed as a plurality of coupled units. The fan elements 6 are used for applying a flat blown air stream on the falling on the sheet stack 2 sheet B.
  • a further blowing device 5 has guides 7, 8, which are held by means of holders 9 blowing tubes 10 such that they extend in a parallel plane above the support surface of the sheet stack 2 spaced from each other.
  • the blowpipes 10 can be arranged between blowing devices 5, so that blowpipes 10 and blowing devices 5 alternate.
  • the planar Blas Kunststoffstrom the blowing devices 5 can be supplemented by targeted Blas Kunststoffströme the blowpipes 10.
  • the blowpipes 10 have for this purpose on their lateral surfaces blowing openings 1 1, wherein a plurality of axially spaced apart Blas Kunststoffö réelleen 11 are provided on each blowpipe 10, so that a corresponding number of Blas Kunststoff- flows 12 downwards.
  • the blowing openings 11 can be closed with displaceable clamping pieces 13, if necessary, which are clipped onto the blower tubes 10.
  • the individual blowing openings 11 of the blower tubes 10 can be closed by means of coverings formed by the clamping pieces, and the respective entire blower tube 10 can be rotated around the tube axis to the left and to the right.
  • blowpipes 10 can also be displaceable transversely and / or in the direction of the longitudinal extension and fixable in a selected position.
  • the supply of the blowpipes 10 with blown air via air inlet openings and possibly controllable valves that are connected to an unillustrated compressed air source.
  • Air blowing tubes are also suitable as a blowing device, with each air guiding tube being able to be adjusted in direction in order to adjust its tube course. is formed, such that a self-supporting, the position-preserving inherent rigidity is present.
  • each air guide tube can have a plurality of individual tube sections arranged in rows, which are designed as modules of identical design and articulated to one another, so that a corresponding, for example, curved tube course can be set.
  • Each air duct can have an air outlet opening at one end and an air inlet opening at its other front end, wherein the air outlet can be a blow nozzle as a round nozzle or as a flat nozzle.
  • such a device is now further developed in such a way that the blowing effect of the device in the middle region of the falling sheet on the sheet stack 2 can be influenced in a targeted manner.
  • This embodiment is preferably carried out in time with the incoming from the printing press sheet.
  • blowpipes 10 arranged parallel to one another in the direction of sheet conveyance are provided.
  • the blowpipes 10 are pneumatically coupled to the guide 7.
  • the supply of air to the blowpipes 10 is then designed influenced by means of one in each connection between the guide 7 and a blowpipe 10 arranged control valve.
  • the middle blowpipe 10 or the middle three blowpipes 10 are specifically controlled to be acted upon with blown air.
  • the Blas Kunststoffbeetzung can be done by means of a common Blas Kunststoffzuschreib for all blowpipes 10 and individual control valves 13 for each blowpipe 10. Likewise, a group-wise summary of the blown air supply for groups of blower tubes 10 and the controlled supply of the blown air via grouped blown air feed devices 14 is possible.
  • the air supply for the blowpipes 10 is controlled by an air generator.
  • all blower tubes 10 are preferably operated together with blown air, wherein the blown air consumption of the blower tubes 10 is additionally individually adjustable by means of the control valves 13.
  • the supply of blowing air takes place in the selected areas, preferably in the time ranges to which the sheets B to be deposited are being released by the sheet guiding devices.
  • the middle blowpipes 10 are supplied to the blower frame (blowing air device 1) with a blast of compressed air, so that the released sheet B (solid line in Fig. 2) during falling in his Middle region moves parallel to the sheet transport direction R down and selectively deformed (dashed representation in Fig. 2).
  • the sheet edges can not drop in advance relative to the center of the sheet and thus prevent the outflow of air from the air cushion in the arc center area.
  • the sheet B will fall more evenly on the sheet stack 2 in the sheet delivery.
  • the control of the blowing air is preferably controlled symmetrically to the central axis of the printing press and parallel to the sheet running direction R. In the case of uneven printing of the sheets B, an asymmetric control of the blowing air at the blower tubes 10 can also be provided.
  • control valves 13 it is provided to amplify the blown air by means of the control valves 13 and stepped from the outside to the center above the sheet pile in the sheet delivery to reinforce the shaping effect on the sheet B (see dashed line illustration in Fig. 2). Furthermore, the control can be changed depending on the machine speed and the characteristics of the Bogenmatehals. at Faster speed, the blast of compressed air can be earlier and / or stronger. With stable substrates, the blast of compressed air can be switched off, but reinforced with very thin substrates.
  • the device is easy to integrate into known blowing devices in sheet delivery. Furthermore, the control of the blown air can be automated.

Abstract

The invention relates to a blast air device (1) for a sheet delivery unit of a processing machine, in particular a printing machine, comprising at least one elongated air guide tube (15) for imparting a blast of air onto sheets to be placed. The air guide tube (15) is adapted to be able to adjust the blasting of air during the working cycle of the processing machine, and is disposed in the middle area of the sheet delivery unit for this purpose.

Description

Getaktete Blasluft im Ausleger Clocked blown air in the boom
Die Erfindung betrifft eine Blasvorrichtung für einen Bogenausleger einer Druckmaschine für eine Blasluftbeaufschlagung von abzulegenden Bögen nach dem Oberbegriff des Anspruchs 1 .The invention relates to a blowing device for a sheet delivery of a printing press for a Blasluftbeaufschlagung of sheets to be deposited according to the preamble of claim 1.
Eine Blasluftvorrichtung der eingangs genannten Art ist aus der DE 196 31 814 C1 bekannt. Sie besitzt eine Baugruppe miteinander verbundener Blasrohre, deren Mantelflächen jeweils mit Blasluftöffnungen versehen ist, aus denen Blasluft austritt, die die Bogenablage unterstützt. Die bekannte Blasluftvorrichtung hat sich bewährt. Dennoch ist ein gelegentlicher Bogenstau nicht auszuschließen. Insbesondere ist Auslage von leichtgewichtigen Bogen schwierig, da deren Fallbewe- gung durch die unterhalb der fallenden Bogen vorhandenen Luftpolster ungleichmäßig ist. Die Bogen fallen häufig nach Freigabe durch das Kettenfördersystem schirmartig mit nach unten hängenden Rändern auf den Auslegerstapel, da sich das Luftpolster im Bereich der Bogenmitte relativ langsam abbaut. Die Bogen lassen sich dann schlecht ausrichten oder werden geknickt ausgelegt oder behindern nachfolgende Bogen. Dieser Mangel ist mit der bekannten Einrichtung nicht zu beheben, da sich die Blasluftwirkung wegen der Verbindung der Blasrohre mehr oder weniger gleichmäßig über die Fläche des Auslegerstapels einstellt.A blown air device of the type mentioned is known from DE 196 31 814 C1. It has an assembly of interconnected blower tubes whose lateral surfaces are each provided with blown air openings from which blown air emerges, which supports the sheet storage. The known Blasluftvorrichtung has proven itself. Nevertheless, an occasional sheet jam can not be ruled out. In particular, display of lightweight sheets is difficult because their falling motion is uneven due to the presence of air bubbles below the falling sheets. The bow often fall after release by the chain conveyor system umbrella-like with down-hanging edges on the delivery pile, as the air cushion degrades relatively slowly in the arc center. The bows can then be poorly aligned or be designed kinked or hinder subsequent bows. This deficiency can not be remedied with the known device, since the blast air effect is adjusted more or less evenly over the surface of the delivery stack because of the connection of the blast pipes.
Der Erfindung liegt daher die Aufgabe zugrunde, eine Blasluftvorrichtung der ein- gangs genannten Art zu schaffen, die die Auslage der Bogen verbessert.The invention is therefore based on the object to provide a blown air device of the type mentioned above, which improves the delivery of the sheet.
Diese Aufgabe wird erfindungsgemäß mit den Merkmalen des Anspruchs 1 gelöst. Vorteilhafte Weiterbildungen ergeben sich durch die Unteransprüche.This object is achieved with the features of claim 1. Advantageous developments emerge from the subclaims.
Die Blaslufteinrichtung zeigt Luftführungsrohre, die gezielt ansteuerbar sind, um insbesondere ein bereichsweise und zeitweise verstärktes Niederdrücken von sich bildenden Erhöhungen im Bogenmaterial beim Ablegen der Bögen zu vermeiden. D.h., besteht die Gefahr, dass sich derartige Erhöhungen im Bogenmaterial bilden könnten, so sorgen individuell einstellbare Luftführungsrohre für ein individuelles Beblasen einer derartigen Erhöhung mit der Folge, dass sich die Erhöhung nicht ausbildet, sodass das Bogenmaterial mit der erfindungsgemäßen Vorrichtung verbessert abgelegt werden kann. Die Erfindung umfasst selbstverständlich die Möglichkeit, dass mehr als ein Luftführungsrohr vorgesehen ist, sodass eine entsprechende Anzahl von vorzugsweise im Wesentlichen verstärkt anblasbaren Bereichen eines abzulegenden Bogens jeweils mit mindestens einem Blasluftstrahl beblasen werden kann. Daher ist es vorgesehen vorzugsweise, dass eine positionsfeste Beblasung gemäß dem Ge- genstand der DE 196 31 814 C1 oder eine entsprechende feststehende Beblasung durchgeführt wird.The blast air device shows air guide tubes, which can be specifically controlled, in order to avoid in particular a region-wise and temporarily reinforced depressions of forming elevations in the sheet material when depositing the sheets. That is, there is a risk that such increases in the sheet material form could provide, so individually adjustable air ducts for an individual blowing of such an increase, with the result that the increase does not form, so that the sheet material can be stored better with the device according to the invention. Of course, the invention includes the possibility that more than one air duct is provided, so that a corresponding number of preferably substantially reinforced inflatable areas of a sheet to be deposited can be blown in each case with at least one blown air jet. Therefore, it is preferably provided that a position-fixed blowing according to the subject matter of DE 196 31 814 C1 or a corresponding fixed blowing is performed.
Dazu ist es vorteilhaft, wenn mindestens ein Blasrohr vorgesehen ist, das in seiner Mantelfläche mindestens eine Luftaustrittsöffnung aufweist. Dieses Blasrohr wird in Kombination mit dem mindestens einen erfindungsgemäßen Luftführungsrohr eingesetzt, wobei das an seiner Mantelfläche mindestens eine Luftaustrittsöffnung aufweisende Blasrohr starr ist und ortsfest oder verstellbar angeordnet ist, gleichzeitig aber gezielt hinsichtlich seiner Blasluftführung ansteuerbar ist.For this purpose, it is advantageous if at least one blowpipe is provided which has at least one air outlet opening in its lateral surface. This blowpipe is used in combination with the at least one air duct according to the invention, wherein the blowpipe having at least one air outlet opening on its jacket surface is rigid and is arranged fixed or adjustable, but at the same time can be specifically controlled with respect to its blown air duct.
Zeichnungen veranschaulichen die Erfindung anhand eines Ausführungsbeispiels und zwar zeigen:Drawings illustrate the invention with reference to an embodiment and show:
Figur 1 eine Aufsicht auf einen Bogenausleger mit Blasluftvorrichtung undFigure 1 is a plan view of a sheet delivery with blown air device and
Figur 2 eine Frontansicht zu Figur 1 .FIG. 2 is a front view of FIG. 1.
Die Figur 1 zeigt eine Blasluftvorhchtung 1 , die im Bereich eines lediglich schematisch angedeuteten Bogenstapels 2 innerhalb eines nicht weiter gezeigten Bogen- auslegers einer nicht näher dargestellten Verarbeitungsmaschine, insbesondere Druckmaschine, derart angeordnet ist, dass abzulegende Bögen von oben her mit Blasluft beaufschlagt werden, um die Bögen schnell sowie reproduzierbar und damit staufrei auf en Bogenstapel 2 abzulegen. Die Bögen werden mittels einer nicht dargestellten Transporteinrichtung zur Ablage angeliefert, wobei sie nach- einander zwischen seitlichen Bogenführungen 3 gelangen und in dieser Zone von der Blasluftvorrichtung 1 im Bereich ihrer Oberseite beblasen werden. Die Blasluftvorrichtung 1 weist eine an sich bekannte, im Wesentlichen flächig wirkende Blaseinrichtung 5 mit Lüfterelementen 6 auf. Die Lüfterelementen 6 können als zu mehreren miteinander gekoppelten Einheiten ausgebildet sein. Die Lüfterelemente 6 dienen zur Aufbringung eines flächigen Blasluftstroms auf die auf den Bogenstapel 2 fallenden Bogen B.1 shows a Blasluftvorhchtung 1, which is arranged in the region of an only schematically indicated sheet stack 2 within a not shown Bogenauslegers a processing machine, not shown, in particular printing press, such that sheets to be deposited are acted upon from above with blown air to To store the sheets quickly and reproducibly and thus without jamming on en sheet pile 2. The sheets are delivered by means of a transport device, not shown, for storage, wherein they nach- get each other between side sheet guides 3 and be blown in this zone of the blowing air device 1 in the region of its top. The blown air device 1 has a blower device 5 with fan elements 6 that is known per se and has a substantially planar action. The fan elements 6 can be designed as a plurality of coupled units. The fan elements 6 are used for applying a flat blown air stream on the falling on the sheet stack 2 sheet B.
Eine weitere Blaseinrichtung 5 besitzt Führungen 7, 8, an denen mittels Haltern 9 Blasrohre 10 derart gehalten sind, dass sie in einer parallelen Ebene oberhalb der Ablagefläche des Bogenstapels 2 beabstandet zueinander verlaufen. Die Blasrohre 10 können zwischen Blaseinrichtungen 5 angeordnet werden, so dass sich Blasrohre 10 und Blaseinrichtungen 5 abwechseln. Damit kann der flächige Blasluftstrom der Blaseinrichtungen 5 durch gezielte Blasluftströme der Blasrohre 10 ergänzt werden.A further blowing device 5 has guides 7, 8, which are held by means of holders 9 blowing tubes 10 such that they extend in a parallel plane above the support surface of the sheet stack 2 spaced from each other. The blowpipes 10 can be arranged between blowing devices 5, so that blowpipes 10 and blowing devices 5 alternate. Thus, the planar Blasluftstrom the blowing devices 5 can be supplemented by targeted Blasluftströme the blowpipes 10.
Die Blasrohre 10 weisen dazu an ihren Mantelflächen Blasöffnungen 1 1 auf, wobei eine Vielzahl von axial zueinander beabstandeten Blasluftöffnungen 11 an jedem Blasrohr 10 vorgesehen sind, sodass eine entsprechende Anzahl von Blasluft- strömen 12 nach unten austritt. Der Einfachheit halber sind in der Figur 2 nur einige der Blasluftströme 12 eingezeichnet. Wie der Figur 1 zu entnehmen ist, können die Blasöffnungen 1 1 mit verlagerbaren Klemmstücken 13 bei Bedarf verschlossen werden, die auf die Blasrohre 10 aufgeklipst sind. Die einzelnen Blasöffnungen 1 1 der Blasrohre 10 sind über von den Klemmstücken gebildeten Abdeckun- gen verschließbar und das jeweilige gesamte Blasrohr 10 um die Rohrachse nach links und rechts drehbar. Es kann auch quer und/oder in Richtung der Längserstreckung verschiebbar und in einer gewählten Stellung fixierbar sein. Die Versorgung der Blasrohre 10 mit Blasluft erfolgt über Lufteintrittsöffnungen und ggf. steuerbare Ventile, die an eine nichtdargestellte Druckluftquelle angeschlossen sind.The blowpipes 10 have for this purpose on their lateral surfaces blowing openings 1 1, wherein a plurality of axially spaced apart Blasluftöffnungen 11 are provided on each blowpipe 10, so that a corresponding number of Blasluft- flows 12 downwards. For the sake of simplicity, only some of the blast air flows 12 are shown in FIG. As can be seen from FIG. 1, the blowing openings 11 can be closed with displaceable clamping pieces 13, if necessary, which are clipped onto the blower tubes 10. The individual blowing openings 11 of the blower tubes 10 can be closed by means of coverings formed by the clamping pieces, and the respective entire blower tube 10 can be rotated around the tube axis to the left and to the right. It can also be displaceable transversely and / or in the direction of the longitudinal extension and fixable in a selected position. The supply of the blowpipes 10 with blown air via air inlet openings and possibly controllable valves that are connected to an unillustrated compressed air source.
Als Blaseinrichtung sind auch Luftführungsrohre geeignet, wobei jedes Luftführungsrohr zur Einstellung seines Rohrverlaufs in sich richtungsverstellbar ausge- bildet ist, derart, dass eine selbsttragende, die Position erhaltende Eigensteifigkeit vorliegt. Jedes Luftführungsrohr kann dazu mehrere, reihenförmig angeordnete, einzelne Rohrabschnitte aufweisen, die als einander gleich gestaltete Module ausgebildet und gelenkig miteinander verbunden sind, so dass ein entsprechen- der, beispielsweise bogenförmiger Rohrverlauf eingestellt werden kann.Air blowing tubes are also suitable as a blowing device, with each air guiding tube being able to be adjusted in direction in order to adjust its tube course. is formed, such that a self-supporting, the position-preserving inherent rigidity is present. To this end, each air guide tube can have a plurality of individual tube sections arranged in rows, which are designed as modules of identical design and articulated to one another, so that a corresponding, for example, curved tube course can be set.
Jedes Luftführungsrohr kann am einen Stirnende eine Luftaustrittsöffnung und an seinem anderen Stirnende eine Lufteintrittsöffnung aufweisen, wobei der Luftaustritt eine Blasdüse als Runddüse oder als Flachdüse sein kann.Each air duct can have an air outlet opening at one end and an air inlet opening at its other front end, wherein the air outlet can be a blow nozzle as a round nozzle or as a flat nozzle.
Erfindungsgemäß wird eine derartige Vorrichtung nun so weitergebildet, dass die Blaswirkung der Einrichtung im Mittelbereich der fallenden Bogen auf den Bogen- stapel 2 gezielt beeinflusst werden kann. Diese Ausführung erfolgt bevorzugt im Takt der von der Druckmaschine ankommenden Bogen.According to the invention, such a device is now further developed in such a way that the blowing effect of the device in the middle region of the falling sheet on the sheet stack 2 can be influenced in a targeted manner. This embodiment is preferably carried out in time with the incoming from the printing press sheet.
In der Vorrichtung gemäß Fig. 1 und 2 sind fünf parallel zueinander in Richtung der Bogenförderung angeordnete Blasrohre 10 vorgesehen. Zur erfindungsgemäßen Anordnung werden die Blasrohre 10 an der Führung 7 pneumatisch angekoppelt. Die Zuführung der Luft zu den Blasrohren 10 wird dann mittels je eines in jeder Verbindung zwischen der Führung 7 und einem Blasrohr 10 angeordneten Steuerventils beeinflussbar gestaltet. Insbesondere werden das mittlere Blasrohr 10 oder die mittleren drei Blasrohre 10 gezielt mit Blasluft beaufschlagbar gesteuert.In the apparatus according to FIGS. 1 and 2, five blowpipes 10 arranged parallel to one another in the direction of sheet conveyance are provided. For the arrangement according to the invention, the blowpipes 10 are pneumatically coupled to the guide 7. The supply of air to the blowpipes 10 is then designed influenced by means of one in each connection between the guide 7 and a blowpipe 10 arranged control valve. In particular, the middle blowpipe 10 or the middle three blowpipes 10 are specifically controlled to be acted upon with blown air.
Die Blasluftbeaufschlagung kann mittels einer gemeinsamen Blasluftzufuhr für alle Blasrohre 10 und einzelne Steuerventile 13 für jedes Blasrohr 10 erfolgen. Ebenso ist eine gruppenweise Zusammenfassung der Blasluftzufuhr für Gruppen von Blasrohren 10 und die gesteuerte Zufuhr der Blasluft über gruppierten Blasluftzufuhreinrichtungen 14 möglich.The Blasluftbeaufschlagung can be done by means of a common Blasluftzufuhr for all blowpipes 10 and individual control valves 13 for each blowpipe 10. Likewise, a group-wise summary of the blown air supply for groups of blower tubes 10 and the controlled supply of the blown air via grouped blown air feed devices 14 is possible.
Mittels der Blasluftzufuhreinrichtung 14 ist die Luftzufuhr für die Blasrohre 10 von einem Lufterzeuger zusteuerbar. Dabei werden bevorzugt alle Blasrohre 10 ge- meinsam mit Blasluft bedient, wobei an den Blasrohren 10 der Blasluftverbrauch mittels der Stellventile 13 zusätzlich einzeln einstellbar ist. Es ist aber auch eine gruppenweise oder einzeln zugeordnete Ansteuerung von Blasrohren 10 möglich, die bevorzugt symmetrisch zur Bogenförderrichtung R von der Bogenmitte aus erfolgt, die aber auch asymmetrisch erfolgen kann.By means of the Blasluftzufuhreinrichtung 14, the air supply for the blowpipes 10 is controlled by an air generator. In this case, all blower tubes 10 are preferably operated together with blown air, wherein the blown air consumption of the blower tubes 10 is additionally individually adjustable by means of the control valves 13. But it is also a group-wise or individually associated control of blow pipes 10 possible, which is preferably symmetrical to the sheet conveying direction R from the center of the bow, but which can also be done asymmetrically.
Die Zufuhr von Blasluft erfolgt in den ausgewählten Bereichen vorzugsweise in den Zeitbereichen zu denen die abzulegenden Bögen B gerade von den Bogen- führungseinrichtungen freigegeben werden.The supply of blowing air takes place in the selected areas, preferably in the time ranges to which the sheets B to be deposited are being released by the sheet guiding devices.
Hierzu ist bekannt, dass Bogen zum Ablegen auf Auslegerstapeln von Greiferbalken an Kettenfördersystemen über so genannte Bogenbremsen bis über den Aus- legerstapel geführt werden. Bei der Ablage der Bögen werden diese über dem Auslegerstapel kurz vor der Ablage von den Greifern an der Vorderkante gehalten und an den Bogenbremsen im Bereich ihrer Hinterkante geführt.For this purpose, it is known that sheets for depositing on delivery stacks of gripper bars on chain conveyor systems are guided over so-called sheet brakes up to above the delivery stack. When storing the sheets they are held above the delivery pile just before storage by the grippers at the front edge and guided on the sheet brakes in the region of its trailing edge.
Bei der Freigabe der Bogen B ist erfindungsgemäß vorgesehen, dass eines oder mehrere der mittleren Blasrohre 10 an dem Blasrahmen (Blasluftvorrichtung 1 ) mit einem Druckluftstoß versorgt werden, so dass der freigegebene Bogen B (durchgezogene Darstellung in Fig. 2) während des Fallens in seinem Mittelbereich parallel zur Bogentransportrichtung R nach unten bewegt und gezielt verformt wird (strichliierte Darstellung in Fig. 2). Dadurch können die Bogenränder nicht gegen- über der Bogenmitte voreilend absinken und so das Abströmen der Luft aus dem Luftpolster im Bogenmittenbereich verhindern. Der Bogen B wird gleichmäßiger auf den Bogenstapel 2 im Bogenausleger fallen.When releasing the sheet B is inventively provided that one or more of the middle blowpipes 10 are supplied to the blower frame (blowing air device 1) with a blast of compressed air, so that the released sheet B (solid line in Fig. 2) during falling in his Middle region moves parallel to the sheet transport direction R down and selectively deformed (dashed representation in Fig. 2). As a result, the sheet edges can not drop in advance relative to the center of the sheet and thus prevent the outflow of air from the air cushion in the arc center area. The sheet B will fall more evenly on the sheet stack 2 in the sheet delivery.
Die Steuerung der Blasluft wird vorzugsweise symmetrisch zur Mittelachse der Druckmaschine und parallel zur Bogenlaufrichtung R gesteuert. Bei ungleichmäßiger Bedruckung der Bögen B kann auch eine asymmetrische Steuerung der Blasluft an den Blasrohren 10 vorgesehen werden.The control of the blowing air is preferably controlled symmetrically to the central axis of the printing press and parallel to the sheet running direction R. In the case of uneven printing of the sheets B, an asymmetric control of the blowing air at the blower tubes 10 can also be provided.
Weiterhin ist vorgesehen die Blasluft mittels der Steuerventile 13 auch gestuft von außen zur Mitte oberhalb des Bogenstapels im Bogenausleger zu verstärken, um die Formungswirkung auf den Bogen B zu verstärken (siehe strichliierte Darstellung in Fig. 2). Weiterhin kann die Steuerung in Abhängigkeit von der Maschinengeschwindigkeit und den Kennwerten des Bogenmatehals verändert werden. Bei schnellerer Geschwindigkeit kann der Druckluftstoß früher und/oder stärker erfolgen. Bei stabilen Bedruckstoffen kann der Druckluftstoß abgeschaltet, bei sehr dünnen Bedruckstoffen aber verstärkt werden.Furthermore, it is provided to amplify the blown air by means of the control valves 13 and stepped from the outside to the center above the sheet pile in the sheet delivery to reinforce the shaping effect on the sheet B (see dashed line illustration in Fig. 2). Furthermore, the control can be changed depending on the machine speed and the characteristics of the Bogenmatehals. at Faster speed, the blast of compressed air can be earlier and / or stronger. With stable substrates, the blast of compressed air can be switched off, but reinforced with very thin substrates.
Die Vorrichtung ist einfach in bekannte Blasvorrichtungen in Bogenauslegern zu integrieren. Weiterhin kann die Steuerung der Blasluft automatisiert werden. The device is easy to integrate into known blowing devices in sheet delivery. Furthermore, the control of the blown air can be automated.
BezugszeichenlisteLIST OF REFERENCE NUMBERS
1 Blasluftvorrichtung1 blower device
2 Bogenausleger2 sheet delivery
3 Bogenführung3 bowing
4 Bogenführung4 bow guide
5 Blaseinrichtung5 blowing device
6 Lüfterelement6 fan element
7 Führung7 leadership
8 Führung8 leadership
9 Halter9 holders
10 Blasrohr10 blowpipe
1 1 Blasöffnung1 1 blow opening
12 Blasluftstrom12 blowing air flow
13 Steuerventil13 control valve
14 Gruppensteuerung / Luftverteiler14 Group control / air distributor
B BogenB bow
R Bogentransportrichtung R sheet transport direction

Claims

Patentansprüche claims
1 . Blasluftvorrichtung für einen Bogenausleger einer Verarbeitungsmaschine, insbesondere einer Druckmaschine, mit mehreren länglichen Luftführungsroh- ren (10) für eine Blasluftbeaufschlagung von abzulegenden Bögen (B), dadurch gekennzeichnet, dass wenigstens ein Luftführungsrohr (10) zur auf einen Arbeitstakt der Verarbeitungsmaschine bezogenen Einstellung seiner Blasluftversorgung ausgebildet ist und dass dieses Luftführungsrohr (10) dem Mittelbereich oberhalb ei- nes Bogenstapels (2) im Bogenausleger in der Ebene der Bogenauslage zugeordnet ist.1 . Blowing device for a sheet delivery of a processing machine, in particular a printing press, with a plurality of elongate Luftführungsroh- ren (10) for a Blasluftbeaufschlagung of sheets (B) to be deposited, characterized in that at least one air duct (10) related to a working cycle of the processing machine setting its Blasluftversorgung is formed and that this air guide tube (10) is assigned to the central region above a sheet pile (2) in the sheet delivery in the plane of the sheet delivery.
2. Blasluftvorrichtung nach Anspruch 1 , dadurch gekennzeichnet, dass das Luftführungsrohr (10) oder jedes Luftführungsrohr (10) zum Ein- und2. Blowing device according to claim 1, characterized in that the air guide tube (10) or each air duct (10) for on and
Ausschalten der Luftführung und/oder zur Einstellung des Luftvolumenstroms eine Schalteinrichtung (13, 14) und/oder eine Stelleinrichtung (13, 14) aufweist.Turning off the air duct and / or for adjusting the air flow rate, a switching device (13, 14) and / or an adjusting device (13, 14).
3. Blasluftvorrichtung nach Anspruch 1 , dadurch gekennzeichnet, dass Luftzuführungen für das Luftführungsrohr (10) oder Gruppen von Luftführungsrohren (10) zum Ein- und Ausschalten der Luftführung und/oder zur Einstellung des Luftvolumenstroms eine Schalteinrichtung (13, 14) und/oder eine Stelleinrichtung (13, 14) aufweisen.3. blowing air device according to claim 1, characterized in that air supply lines for the air duct (10) or groups of air ducts (10) for switching on and off the air duct and / or for adjusting the air flow a switching device (13, 14) and / or a Actuating device (13, 14).
4. Blasluftvorrichtung nach einem der vorhergehenden Ansprüche, gekennzeichnet durch eine Kombination von mindestens einem Blasrohr (10) mit in seiner Mantelfläche angeordneten Blasöffnungen (11 ) und mindestens einem biegbaren Luftführungsrohr mit endseitiger Blasöffnung.4. Blowing device according to one of the preceding claims, characterized by a combination of at least one blow pipe (10) arranged in its lateral surface blowing openings (11) and at least one bendable air duct with end-side blow opening.
5. Blasluftvorrichtung nach einem der vorhergehenden Ansprüche, gekennzeichnet durch eine Steuerung der Blasluftzufuhr für eines oder Grup- pen von oder jedes Luftführungsrohr und/oder Blasrohr (10), wobei die Zufuhr der zu den Luftführungsrohren und/oder Blasrohren (10) Blasluft in Abhängigkeit des Arbeitstaktes der Verarbeitungsmaschine ansteuerbar ist. 5. Blowing device according to one of the preceding claims, characterized by a control of the blown air supply for one or group pen of or each air duct and / or blower tube (10), wherein the supply of the air ducts and / or blowpipes (10) blowing air in response to the power stroke of the processing machine can be controlled.
PCT/EP2009/060550 2008-09-03 2009-08-14 Timed blast air in delivery unit WO2010026033A1 (en)

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CN200980134992.4A CN102171121B (en) 2008-09-03 2009-08-14 Timed blast air in delivery unit
JP2011525496A JP2012501931A (en) 2008-09-03 2009-08-14 Synchronous blowing air in the paper delivery device

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DE102008041796 2008-09-03
DE102008041796.3 2008-09-03
DE102009027633.5A DE102009027633B4 (en) 2008-09-03 2009-07-10 Clocked blown air in the boom
DE102009027633.5 2009-07-10

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JP2012501931A (en) 2012-01-26
CN102171121B (en) 2014-06-11
CN102171121A (en) 2011-08-31
DE102009027633A1 (en) 2010-04-29

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