EP0096276B1 - Delivery mechanism for rotary presses - Google Patents

Delivery mechanism for rotary presses Download PDF

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Publication number
EP0096276B1
EP0096276B1 EP19830105074 EP83105074A EP0096276B1 EP 0096276 B1 EP0096276 B1 EP 0096276B1 EP 19830105074 EP19830105074 EP 19830105074 EP 83105074 A EP83105074 A EP 83105074A EP 0096276 B1 EP0096276 B1 EP 0096276B1
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EP
European Patent Office
Prior art keywords
suction
roller
sheet
suction roller
delivery mechanism
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.)
Expired
Application number
EP19830105074
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German (de)
French (fr)
Other versions
EP0096276A3 (en
EP0096276A2 (en
Inventor
Erich Georg Wieland
Wolfgang Carlo Johannes Spiess
Jürgen Ferdinand Franz Münker
Willi Richard Ludwig Dörsam
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.)
Koenig and Bauer AG
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Koenig and Bauer AG
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Publication date
Application filed by Koenig and Bauer AG filed Critical Koenig and Bauer AG
Publication of EP0096276A2 publication Critical patent/EP0096276A2/en
Publication of EP0096276A3 publication Critical patent/EP0096276A3/en
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    • 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
    • B65H29/68—Reducing the speed of articles as they advance
    • 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
    • B65H29/241—Suction devices
    • B65H29/243—Suction rollers
    • 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
    • B65H2406/30—Suction means
    • B65H2406/33—Rotary suction means, e.g. roller, cylinder or drum
    • B65H2406/332—Details on suction openings

Definitions

  • the invention relates to a delivery device on sheet-fed rotary printing presses according to the preamble of patent claim 1.
  • the sheets are to be placed on a stack at a practically reduced speed. In practice, this means that the sheets must be slowed down on a short stretch and then placed on the stack.
  • suction roller A disadvantage of this suction roller, however, is that it is built quite large and cannot be attached close enough to the paper stack.
  • the invention has for its object to provide a driven suction roller for a delivery device on a sheet-fed rotary printing press, with which it is possible to keep the distance between the suction roller edge and the stack edge as small as possible; in addition, the sheet to be braked should be stripped across its width during the braking process, d. H. Wrinkles are smoothed.
  • the advantages that can be achieved with the invention are, in particular, that it is possible to strip out the sheet from the center of the sheet to the outside on both sides during the braking process, and that part of the suction roll can be made inactive in accordance with the sheet format width to be processed.
  • the outside diameter of the suction roller can be kept as small as desired, and suction air does not have to be supplied from the inside.
  • a driven suction roller 1 is mounted in a known manner. As can also be known, it can be moved in and against the sheet transport direction in order to position the suction roll 1 as close as possible to the rear side of the stack, in accordance with the paper format.
  • the suction roller 1 is designed as a solid body and is provided with a plurality of bores 2 which intersect the axis of rotation of the suction roller 1. You have e.g. B. a diameter of 4 mm.
  • the bores 2 lie on a spiral line, starting from a roller half and rising to the left or right, around the suction roller 1.
  • the bores 2 are each offset by 10 ° on the circumference and about 6 mm to the side.
  • the individual suction air feed pieces 3 are adapted to the radius “r” of the suction roll 1 and sealed against the ambient air in such a way that no outside air can enter between the suction roll 1 and suction air feed pieces 3.
  • Each suction air supply piece 3 is provided in the center with a longitudinal groove 4, which is connected to a connecting pipe 6.
  • Each of the connecting pipes 6 is connected via a hose 7 to a shut-off valve 8 assigned to it. All shut-off valves 8 are connected to a suction air source, not shown, via hoses or pipes.
  • the suction air of each individual suction air supply piece 3 can be adjusted or switched off via the shut-off valves 8.
  • a table 9 is provided in the opposite direction to the sheet transport direction.
  • a surface 11 of the table 9 is arranged slightly below the highest point of the suction roll 1.
  • the table 9 is provided on its surface 11 with outlet openings 12 for blowing air.
  • the outlet openings 12 are designed such that they allow the air flow to emerge along the surface 11, as a result of which the paper sheet is drawn against the table 9 in accordance with the “hydrodynamic” paradox.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)
  • Separation, Sorting, Adjustment, Or Bending Of Sheets To Be Conveyed (AREA)

Description

Die Erfindung betrifft eine Auslegevorrichtung an Bogenrotationsdruckmaschinen gemäss dem Oberbegriff des Patentanspruchs 1.The invention relates to a delivery device on sheet-fed rotary printing presses according to the preamble of patent claim 1.

In Auslegevorrichtungen an Bogenrotationsdruckmaschinen sollen die Bogen mit einer praktisch auf Null reduzierten Geschwindigkeit zur Ablage auf einem Stapel kommen. In der Praxis bedeutet das, dass die Bogen auf einer kurzen Strekke abgebremst und dann auf den Stapel abgelegt werden müssen.In lay-out devices on sheet-fed rotary printing machines, the sheets are to be placed on a stack at a practically reduced speed. In practice, this means that the sheets must be slowed down on a short stretch and then placed on the stack.

Zum Abbremsen der Bogen sind angetriebene Saugwalzen z. B. durch die US-A Nr. 2969980 bekannt geworden. Diese Druckschrift stellt den Stand der Technik dar, der dem Oberbegriff des Anspruchs 1 entspricht.Driven suction rollers are used to brake the sheet z. B. known from US-A No. 2969980. This document represents the prior art, which corresponds to the preamble of claim 1.

Nachteilig bei dieser Saugwalze ist jedoch, dass sie ziemlich gross gebaut ist und so nicht nahe genug am Papierstapel angebracht werden kann.A disadvantage of this suction roller, however, is that it is built quite large and cannot be attached close enough to the paper stack.

Der Erfindung liegt die Aufgabe zugrunde, eine angetriebene Saugwalze für eine Auslegevorrichtung an einer Bogenrotationsdruckmaschine zu schaffen, mit der es möglich ist, den Abstand Saugwalzenrnite - Stapelkante möglichst klein zu halten; ausserdem soll der abzubremsende Bogen während des Abbremsevorgangs über seine Breite ausgestreift, d. h. Falten geglättet werden.The invention has for its object to provide a driven suction roller for a delivery device on a sheet-fed rotary printing press, with which it is possible to keep the distance between the suction roller edge and the stack edge as small as possible; in addition, the sheet to be braked should be stripped across its width during the braking process, d. H. Wrinkles are smoothed.

Diese Aufgabe wird erfindungsgemäss durch den Gegenstand der kennzeichnenden Teile der Ansprüche gelöst.This object is achieved according to the invention by the subject matter of the characterizing parts of the claims.

Die mit der Erfindung erzielbaren Vorteile bestehen insbesondere darin, dass es möglich ist, während des Abbremsvorgangs den Bogen von der Bogenmitte nach aussen nach beiden Seiten hin auszustreifen, und dass entsprechend der gerade zu verarbeitenden Bogenformatbreite ein Teil der Saugwalze inaktiv gestellt werden kann. Ausserdem kann der Aussendurchmesser der Saugwalze beliebig klein gehalten werden, und eine Saugluftzufuhr muss nicht von innen erfolgen.The advantages that can be achieved with the invention are, in particular, that it is possible to strip out the sheet from the center of the sheet to the outside on both sides during the braking process, and that part of the suction roll can be made inactive in accordance with the sheet format width to be processed. In addition, the outside diameter of the suction roller can be kept as small as desired, and suction air does not have to be supplied from the inside.

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird im folgenden näher beschrieben. Es zeigen:

  • Fig. 1 einen Vertikalschnitt durch die erfindungsgemässe Saugwalze,
  • Fig. 2 eine Ansicht von oben auf die Saugluftzufuhrstücke,
  • Fig. 3 eine Ansicht der erfindungsgemässert Saugwalze.
An embodiment of the invention is shown in the drawing and will be described in more detail below. Show it:
  • 1 is a vertical section through the suction roll according to the invention,
  • 2 is a top view of the suction air supply pieces,
  • Fig. 3 is a view of the suction roll according to the invention.

In nicht dargestellten Seitengestellen einer Bogenauslegevorrichtung ist in bekannterweise eine angetriebene Saugwaize 1 gelagert. Sie kann, wie ebenfalls bekannt, in und entgegen Bogentransportrichtung verschoben werden, um die Saugwalze 1 möglichst nahe - entsprechend dem Papierformat-an die hintere Stapelseite anzustellen. Die Saugwalze 1 ist als Vollkörper ausgeführt und mit einer Vielzahl von die Rotationsachse der Saugwalze 1 schneidenden Bohrungen 2 versehen. Sie haben z. B. einen Durchmesser von 4 mm. Die Bohrungen 2 liegen auf je einer von einer Walzenhälfte ausgehenden, links bzw. rechts steigenden Spirallinie um die Saugwalze 1. Die Bohrungen 2 sind jeweils um 10° am Umfang und ca. 6 mm seitlich zueinander versetzt angeordnet. Unterhalb der Saugwalze 1 sind über die gesamte, mit Bohrungen 2 versehene Länge der Saugwalze 1 eine Mehrzahl von gegeneinander abgeschotteten Saugluftzufuhrstücken 3 nebeneinanderangeordnet. Die einzelnen Saugluftzufuhrstücke 3 sind an den Radius «r» der Saugwalze 1 angepasst und gegen die Umgebungsluft so abgedichtet, dass keine Fremdluft zwischen Saugwalze 1 und Saugluftzuführstücke 3 eintreten kann. Jedes Saugluftzufuhrstück 3 ist mittig mit einer Längsnut 4 versehen, die mit einem Anschlussrohr 6 in Verbindung steht. Über einen Schlauch 7 ist jedes der Anschlussrohre 6 mit einem ihm zugeordneten Absperrventil 8 verbunden. Sämtliche Absperrventile 8 sind über Schläuche bzw. Rohre an eine nicht dargestellte Saugluftquelle angeschlossen.In a side frame of a sheet delivery device, not shown, a driven suction roller 1 is mounted in a known manner. As can also be known, it can be moved in and against the sheet transport direction in order to position the suction roll 1 as close as possible to the rear side of the stack, in accordance with the paper format. The suction roller 1 is designed as a solid body and is provided with a plurality of bores 2 which intersect the axis of rotation of the suction roller 1. You have e.g. B. a diameter of 4 mm. The bores 2 lie on a spiral line, starting from a roller half and rising to the left or right, around the suction roller 1. The bores 2 are each offset by 10 ° on the circumference and about 6 mm to the side. Below the suction roller 1, a plurality of suction air supply pieces 3, which are sealed off from one another, are arranged next to one another over the entire length of the suction roller 1 provided with bores 2. The individual suction air feed pieces 3 are adapted to the radius “r” of the suction roll 1 and sealed against the ambient air in such a way that no outside air can enter between the suction roll 1 and suction air feed pieces 3. Each suction air supply piece 3 is provided in the center with a longitudinal groove 4, which is connected to a connecting pipe 6. Each of the connecting pipes 6 is connected via a hose 7 to a shut-off valve 8 assigned to it. All shut-off valves 8 are connected to a suction air source, not shown, via hoses or pipes.

Über die Absperrventile 8 kann die Saugluft jedes einzelnen Saugluftzufuhrstückes 3 eingestellt beziehungsweise abgestellt werden. Nahezu an die Saugwalze 1 anstossend ist in entgegengesetzter Richtung zur Bogentransportrichtung ein Tisch 9 vorgesehen. Eine Oberfläche 11 des Tisches 9 ist etwas unterhalb des höchsten Punktes der Saugwalze 1 angeordnet. Der Tisch 9 ist auf seinerOberfläche 11 mit Austrittsöffnungen 12 für Blasluft versehen. Die Austrittsöffnungen 12 sind dabei so gestaltet, dass sie den Luftstrom entlang der Oberfläche 11 austreten lassen, wodurch entsprechend dem «hydrodynamischen» Paradoxon der Papierbogen gegen den Tisch 9 gezogen wird.The suction air of each individual suction air supply piece 3 can be adjusted or switched off via the shut-off valves 8. Almost abutting the suction roller 1, a table 9 is provided in the opposite direction to the sheet transport direction. A surface 11 of the table 9 is arranged slightly below the highest point of the suction roll 1. The table 9 is provided on its surface 11 with outlet openings 12 for blowing air. The outlet openings 12 are designed such that they allow the air flow to emerge along the surface 11, as a result of which the paper sheet is drawn against the table 9 in accordance with the “hydrodynamic” paradox.

Durch die spiralförmige Anordnung der Bohrungen 2 werden in Verbindung mitden-Saugluftzufuhrstücken 3 nur wenige von ihnen gleichzeitig mit Saugluft beaufschlagt. Durch die Drehung der Saugwalze 1 werden die Bohrungen 2 in zeitlicher Reihenfolge an die Saugiuftquelle an-bzw. von ihr abgeschaltet, und zwar jeweils beginnend von der Mitte der Saugwalze 1 nach ihrem rechten bzw. linken Ende hin. Durch diesen Effekt in Verbindung mit der Drehung der Saugwalze 1 in Bogenlaufrichtung wird ein seitlicher Ausstreifeffekt des abzubremsenden Bogens erzielt.

Figure imgb0001
Due to the spiral arrangement of the bores 2, only a few of them are acted upon by suction air at the same time in connection with the suction air supply pieces 3. By rotating the suction roller 1, the bores 2 are connected to the suction air source in time order. switched off by her, starting from the center of the suction roll 1 towards its right or left end. This effect in connection with the rotation of the suction roll 1 in the sheet running direction achieves a lateral stripping effect of the sheet to be braked.
Figure imgb0001

Claims (1)

  1. A delivery mechanism for sheet-fed rotary printing presses with a driven suction roller (1) which is provided with a plurality of suction holes, characterised in that the suction roller (1) is provided with a multitude of boreholes (2) separated from one another, that a plurality of suction air feed pieces (3) adapted in longitudinal direction of the suction roller and alongside each other to the radius (r) of the suction roller (1) are arranged to be sealed off against each other and are connected to a suction air source which is capable of being turned on and off, that the boreholes (2) are arranged, commencing in each case from half a suction roller length, on a spiral line rising to the left and right respectively and extending over half the roller length.
EP19830105074 1982-06-03 1983-05-21 Delivery mechanism for rotary presses Expired EP0096276B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3220798 1982-06-03
DE19823220798 DE3220798C1 (en) 1982-06-03 1982-06-03 Delivery device on sheet-fed rotary printing machines

Publications (3)

Publication Number Publication Date
EP0096276A2 EP0096276A2 (en) 1983-12-21
EP0096276A3 EP0096276A3 (en) 1984-07-04
EP0096276B1 true EP0096276B1 (en) 1985-12-18

Family

ID=6165124

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19830105074 Expired EP0096276B1 (en) 1982-06-03 1983-05-21 Delivery mechanism for rotary presses

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EP (1) EP0096276B1 (en)
JP (1) JPS58224952A (en)
DE (1) DE3220798C1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3543026C1 (en) * 1985-12-05 1987-04-02 Koenig & Bauer Ag Delivery device for a sheet-fed rotary printing machine
DE4221927C2 (en) * 1992-07-03 2000-12-21 Heidelberger Druckmasch Ag Sheet delivery on a printing press
JP4878104B2 (en) 2003-07-21 2012-02-15 ハイデルベルガー ドルツクマシーネン アクチエンゲゼルシヤフト Method for conveying sheets through a printing machine and apparatus for carrying out the method
DE102008025685A1 (en) * 2008-05-29 2009-12-17 WINKLER + DüNNEBIER AG Vacuum roller with suction grooves
JP2018165001A (en) * 2017-03-28 2018-10-25 株式会社トライテック Industrial inkjet drawing apparatus

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE870564C (en) * 1945-08-31 1953-03-16 Warner Jones & Company Ltd K Device for moving or controlling the movement of webs or sheets of paper or the like in printing machines or the like.
DE944857C (en) * 1953-02-04 1956-06-28 Maschf Augsburg Nuernberg Ag Device for depositing sheets, especially in printing machines
US2969980A (en) * 1958-09-08 1961-01-31 Miehle Goss Dexter Inc Vacuum slow down device for sheet delivery mechanism
US3947018A (en) * 1974-12-19 1976-03-30 Xerox Corporation Universal feeder-stacker
JPS6025352B2 (en) * 1978-03-02 1985-06-18 住友重機械工業株式会社 Paper ejection device in double-sided printing machine
DE2838586C2 (en) * 1978-09-05 1985-06-20 I.M.C. GmbH Marketing für die graph. Industrie, 6050 Offenbach Method and device for straightening printed sheets

Also Published As

Publication number Publication date
DE3220798C1 (en) 1984-01-19
EP0096276A3 (en) 1984-07-04
JPS58224952A (en) 1983-12-27
EP0096276A2 (en) 1983-12-21
JPS6344661B2 (en) 1988-09-06

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