EP1090863B1 - Feed table - Google Patents

Feed table Download PDF

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Publication number
EP1090863B1
EP1090863B1 EP00118983A EP00118983A EP1090863B1 EP 1090863 B1 EP1090863 B1 EP 1090863B1 EP 00118983 A EP00118983 A EP 00118983A EP 00118983 A EP00118983 A EP 00118983A EP 1090863 B1 EP1090863 B1 EP 1090863B1
Authority
EP
European Patent Office
Prior art keywords
suction
space
suction space
chambers
openings
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP00118983A
Other languages
German (de)
French (fr)
Other versions
EP1090863A2 (en
EP1090863A3 (en
Inventor
Harald Bayer
Gernot Moser
Jörg Trenner
Wolfgang Matthäus
Stefan Hartmann
Uwe Dr. Bäsel
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
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Filing date
Publication date
Application filed by MAN Roland Druckmaschinen AG filed Critical MAN Roland Druckmaschinen AG
Publication of EP1090863A2 publication Critical patent/EP1090863A2/en
Publication of EP1090863A3 publication Critical patent/EP1090863A3/en
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Publication of EP1090863B1 publication Critical patent/EP1090863B1/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
    • B65H11/00—Feed tables
    • B65H11/002—Feed tables incorporating transport belts
    • B65H11/005—Suction belts
    • 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
    • B65H2406/32—Suction belts
    • B65H2406/321—Suction belts integral in feed table
    • 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
    • B65H2406/32—Suction belts
    • B65H2406/322—Suction distributing means
    • B65H2406/3222—Suction distributing means switchable suction elements
    • 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
    • B65H2406/32—Suction belts
    • B65H2406/322—Suction distributing means
    • B65H2406/3223—Suction distributing means details of the openings in the belt, e.g. shape, distribution
    • 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
    • B65H2406/36—Means for producing, distributing or controlling suction
    • B65H2406/363—Means for producing, distributing or controlling suction adjusting or controlling distribution of vacuum for a plurality of suction means

Definitions

  • the invention relates to a device according to the preamble of claim 1.
  • Suction conveyor tables consist of a box-shaped cavity over which the Suction belts are guided. Suction belts are provided with openings Flat belts.
  • a suction air supply is arranged on the underside of the belt table. This can be as simple fan or as fan connection.
  • the suction belts of a wave driven and held in a straight position by a clamping device are usually on a suction belt tables.
  • the suction belts are, for example, suction belt tables at the known ones tensioned by means of spring tensioned rollers. This facility is below the Suction belt table arranged and difficult to reach for operation.
  • a feed table is known from EP-A2 0 884 259, which has an arrangement of two chambers arranged one behind the other.
  • a main suction chamber is a suction suction chamber assigned to the outlet end of the feed table downstream.
  • the auxiliary suction chamber is connected to the by means of a suction pipe Main suction chamber connected.
  • a suction channel for a conveyor belt is known from DE-A1 30 01 652.
  • the suction channel is designed as a box open at the bottom, with the open one Side is a perforated conveyor belt.
  • the suction channel is still means two bulkheads divided into three chambers. The bulkheads show Openings that can be closed by means of valve flaps.
  • the suction takes place from the first chamber.
  • the other chambers are only with suction air supplied when the first chamber on the conveyor belt is closed to the outside.
  • the negative pressure in all three chambers breaks down when the first chambers is released on the conveyor belt, since then the vacuum supply is interrupted.
  • the aim of the invention is therefore to improve the suction belt table so that the Sheet transport can be designed safely in a simple manner.
  • the object of the invention is to provide a generic suction belt table to further develop that the sheet transport is designed safely in any operating situation and can be readjusted, in particular an automatic setting the suction air requirement of the front chamber is desired.
  • the device according to the invention has great advantages in relation to the Regulating and influencing the transport safety of sheets on the Suction belt tables. Especially when the sheets run off from Suction belt table have advantages in that an excessive Vacuum is avoided by stopping the suction belts on the suction belt table can leave.
  • FIG. 1 part of a suction belt table is shown.
  • the suction belt table contains a main suction box 1, over which suction belts 7 are guided.
  • the Main suction box 1 has a suction space 2, the top side of which by perforated cover plate 3 is limited.
  • openings 4 are Passage of suction air provided.
  • the suction air acts through the openings 4 Print sheets that are guided on the suction belts 7.
  • a suction chamber 9 is provided, which has more Openings 4 is also connected to the suction belts 7.
  • the suction belts 7 are guided over pulleys 8 at the end of the table, i.e. beyond the main suction box 1 guided.
  • the suction chamber 2 is also with a suction nozzle 5 and with this connected to a fan 6.
  • auxiliary suction pipe 12 continues to connect in the suction nozzle 5.
  • the auxiliary suction pipe 12 acts as an injector nozzle for additional suction. Functionally, the mode of operation is comparable to a jet pump. Therefore, the auxiliary suction pipe 12 opens into a manifold, the suction opening of which faces the fan 6. When pressure is relieved by the suction belt table running free, an increased flow arises in the area of the auxiliary suction pipe 12, which builds up a negative pressure in the auxiliary suction pipe 12.
  • the auxiliary suction pipe 12 is connected to the suction chamber 9 via a pipe 10 with a connection 11 and the suction chamber 16. Additional ventilation is provided in the area of the pipe 10.
  • the additional ventilation is formed by a ring 13, which is provided with openings 14, which in turn correspond to openings 15 in the tube 10.
  • a ring 13 which is provided with openings 14, which in turn correspond to openings 15 in the tube 10.
  • FIG 2 the entire arrangement is shown from the top.
  • the suction nozzle 5 is shown, into which the suction pipe 12 projects.
  • the pipe 10 connects the suction nozzle 5 to the suction chamber 16 in the suction belt table via the Pipe connection 11.
  • the auxiliary ventilation is not shown in this case. about the top of the suction belt table, which is formed by the cover plate 3 and is pierced by openings 4, the suction belts 7 with their Suction openings guided.
  • the suction belt table with its main suction box is 1 in Shown top view and has a first arrangement of cavities 2. in the front area of the suction belt table, i.e. in the area where the arches from An additional suction chamber 9 is provided.
  • the Suction chamber 9 is connected to suction chamber 16. Furthermore, the suction chamber 9 via openings 17 with the suction space 2, i.e. the main suction box 1 connected.
  • the suction belts are placed on the front of the suction belt table Deflection rollers 8 out.
  • FIG 3 is a detail of the connection between the suction chamber 9 and the Suction chamber 2 shown in more detail.
  • an opening 17 in the Wall between the two cavities 2, 9 closed with a ball 19 become.
  • the ball 19 settles in the manner of a check valve for example under spring force in the seat of the opening 17.
  • the Ball 19 also have a seat on both sides, so that overpressure regulation can take place between the two cavities 9 and 2.
  • the ball 19 can do this against the respective seat by means of a weak spring, which additionally according to a desired overpressure in its preload can be adjustable.
  • FIG 4 is a variation of the closure previously described shown between the two cavities 9 and 2.
  • the opening 17 is shown between the cover plate 3 and the main suction box 1.
  • the opening 17 can through a flap 18 can be closed.
  • This flap can be sprung in such a way that they are under an overpressure effect from the side of the suction chamber 9 can be opened. This also applies to an increased vacuum on the Side of the suction room 2.
  • the arrangement thus ensures that, for example, when the suction belt table runs empty and there is a pressure increase in the main suction box 1, an undesirable pressure increase or vacuum reduction in the suction space 9 takes place. This could possibly jeopardize the operational safety of the suction belt table when the last sheets run off, which could then no longer be conveyed properly.
  • the suction space 16 as a common suction chamber, the air duct to the suction chambers 9 in the end area the suction belt table takes over, the openings 17 of the respective a suction space 9 assigned to a suction band 7 also directly with the suction space 2 be connected via the pressure compensation devices.
  • the Pressure equalization processes can then even be page by page independent run from each other and improve the functionality of the Suction belt table additionally.

Landscapes

  • Delivering By Means Of Belts And Rollers (AREA)
  • Belt Conveyors (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Valve Device For Special Equipments (AREA)

Abstract

The conveyor incorporates a suction belt table which has two vacuum-chambers positioned in the direction in which the flow of sheets is moving. The top side of the chambers forms the conveyor plane of the suction belt table. The chambers have openings. The at least one vacuum generator produces a flow of suction air through the chambers and the openings in the table and conveyor belts. the opening between the chambers act as suction space (2) in the middle part of the suction belts-table and as suction space (16,9) in the ends of the suction belts table.

Description

Die Erfindung betrifft eine Vorrichtung nach dem Oberbegriff des Anspruchs 1.The invention relates to a device according to the preamble of claim 1.

Zur Zuführung von einzelnen Bogen zu bogenverarbeitenden Maschinen ist nach der Vereinzelung eines Bogens von einem Bogenstapel dessen Transport über eine gewisse Strecke bis zu einem Anlagebereich der bogenverarbeitenden Maschine erforderlich. Üblicherweise werden die Bogen in einem Schuppenstrom zur bogenverarbeitenden Maschine transportiert. Möglich ist aber auch eine Einzelbogenzufuhr. Beim Transport der Bogen von dem Bogenanleger zur bogenverarbeitenden Maschine sind sogenannte Bändertische im Einsatz, die es erlauben, einen Strom von Bogen, die gegeneinander unterschuppt sind, sicher zu führen. Besonders vorteilhaft sind hierbei sogenannte Saugbändertische. Saugbändertische bestehen aus einem kastenförmigen Hohlraum, über den die Saugbänder geführt werden. Saugbänder sind mit Öffnungen versehene Flachbänder. Zum Festhalten der Bogen an den Saugbändem wird in der Regel an der Unterseite des Bändertisches eine Saugluftzufuhr angeordnet. Diese kann als einfacher Lüfter oder als Gebläseanschluß ausgeführt sein. Zum Transportieren der Bogen über den Saugbändertisch werden die Saugbänder von einer Welle angetrieben und von einer Spannvorrichtung in gerader Lage gehalten. Diese bekannten Saugbändertische weisen hierbei verschiedene Nachteile auf.For feeding single sheets to sheet-processing machines is according to the separation of a sheet from a sheet stack its transport via a certain distance to a sheet processing area Machine required. Usually the sheets are in a stream of scales transported to the sheet-processing machine. But one is also possible Single sheet feed. When transporting the sheets from the sheet feeder to sheet-processing machine are so-called belt tables in use, it allow a stream of arches that are shingled against each other to be secure to lead. So-called suction belt tables are particularly advantageous here. Suction conveyor tables consist of a box-shaped cavity over which the Suction belts are guided. Suction belts are provided with openings Flat belts. To hold the bow on the suction tapes is usually on a suction air supply is arranged on the underside of the belt table. This can be as simple fan or as fan connection. For transportation the arc over the suction belt table, the suction belts of a wave driven and held in a straight position by a clamping device. This Known suction belt tables have various disadvantages.

An den bekannten sind beispielsweise Saugbändertischen werden die Saugbänder mittels angefederter Spannrollen gespannt. Diese Einrichtung ist unterhalb des Saugbändertisches angeordnet und ungünstig für die Bedienung erreichbar. The suction belts are, for example, suction belt tables at the known ones tensioned by means of spring tensioned rollers. This facility is below the Suction belt table arranged and difficult to reach for operation.

Außerdem erscheint sie vor allem deshalb als relativ aufwendig, weil die Saugluftzuführung bei unterschiedlicher Belastung des Saugbändertisches reguliert werden muß, um einen Antriebsschlupf der Saugbänder zu vermeiden.In addition, it appears to be relatively expensive mainly because the Suction air supply regulated with different loads on the suction belt table must be avoided to prevent the suction belts from slipping.

In einer derartigen Vorrichtung ist es bekannt, eine Saugkammer durch Klappen von einem vorderen Teil einer Saugbändereinrichtung abzutrennen. Hierbei wird der vordere Teil des Saugbändereinrichtung von dem gleichen Volumenstrom an Saugluft beaufschlagt wie der Hauptteil. Lediglich durch die Steuerung der auflegenden Bogen wird die Klappe innerhalb der Kammer bewegt und leitet einen Saugluftstrom in den vorderen Teil um. Die Versorgung des vorderen Kammerteiles mit Saugluft ist damit unregelmäßig.In such a device it is known to fold a suction chamber to separate a front part of a suction belt device. Here, the front part of the suction belt device from the same volume flow Suction air acts like the main part. Only by controlling the the bow is moved within the chamber and guides you Suction air flow into the front part. The supply of the front part of the chamber with suction air is therefore irregular.

Aus der DE 196 16 714 A1 ist es in einem weiteren Saugbändertisch bekannt, eine Kammer eines Saugbändertisches in dessen Transportrichtung in zwei Teile zu unterteilen. Die Versorgung mit Saugluft erfolgt dabei gemeinsam für eine nun vorhandene aus der Sicht der bogenverarbeitenden Maschine hintere und eine vordere Kammer. Die Anordnung eines Saugbändertisches in dieser Form weist Nachteile bezüglich der Steuerung der Luftversorgung für die verschiedenen Transportbereiche des Tisches auf. Hierbei ist es insbesondere erforderlich, am Anfang des Saugbändertisches und am Ende des Saugbändertisches unterschiedliche Ansaugbedingungen zu erzeugen, um die Bogen in jeder Transportlage sicher handhaben zu können. Dazu sind eine Reihe von Steuereinrichtungen zur schaltbaren Verbindung der Kammern bzw. zur Belüftung der vorderen Kammer vorgesehen.From DE 196 16 714 A1 it is known in a further suction belt table, a Chamber of a suction belt table in its transport direction in two parts divide. The supply of suction air is done jointly for a well existing from the point of view of the sheet-processing machine rear and one anterior chamber. The arrangement of a suction belt table in this form has Disadvantages regarding the control of the air supply for the various Transport areas of the table. It is particularly necessary here on Start of the suction belt table and at the end of the suction belt table generate different suction conditions to the sheets in each To be able to handle the transport position safely. There are a number of Control devices for switchable connection of the chambers or for ventilation the front chamber provided.

Weiterhin ist aus der EP-A2 0 884 259 ein Anlegetisch bekannt, der eine Anordnung von zwei hintereinander angeordneten Kammern aufweist. Einer Hauptsaugkammer ist eine dem ablaufseitigen Ende des Anlegetisches zugeordnete Hitfssaugkammer nachgeordnet. Die Hilfssaugkammer ist mittels eines Saugrohres mit der Hauptsaugkammer verbunden. Furthermore, a feed table is known from EP-A2 0 884 259, which has an arrangement of two chambers arranged one behind the other. A main suction chamber is a suction suction chamber assigned to the outlet end of the feed table downstream. The auxiliary suction chamber is connected to the by means of a suction pipe Main suction chamber connected.

Schließlich ist aus der DE-A1 30 01 652 ein Saugkanal für ein Förderband bekannt. Der Saugkanal ist als nach unten offener Kasten ausgeführt, wobei über die offene Seite eine gelochtes Förderband geführt wird. Der Saugkanal ist weiterhin mittels zweier Abschottbleche in drei Kammern unterteilt. Die Abschottbleche weisen Öffnungen auf, die mittels Ventilklappen verschließbar sind. Die Absaugung erfolgt von der ersten Kammer aus. Die weiteren Kammern werden erst mit Saugluft versorgt, wenn die erste Kammer am Förderband nach außen hin verschlossen ist. Der Unterdruck in allen drei Kammern bricht zusammen, wenn die erste Kämmer über das Förderband freigegeben wird, da dann die Unterdruckversorgung unterbrochen wird.Finally, a suction channel for a conveyor belt is known from DE-A1 30 01 652. The suction channel is designed as a box open at the bottom, with the open one Side is a perforated conveyor belt. The suction channel is still means two bulkheads divided into three chambers. The bulkheads show Openings that can be closed by means of valve flaps. The suction takes place from the first chamber. The other chambers are only with suction air supplied when the first chamber on the conveyor belt is closed to the outside. The negative pressure in all three chambers breaks down when the first chambers is released on the conveyor belt, since then the vacuum supply is interrupted.

Ziel der Erfindung ist es daher, den Saugbändertisch so zu verbessern, daß der Bogentransport auf einfache Weise sicher gestaltet werden kann.The aim of the invention is therefore to improve the suction belt table so that the Sheet transport can be designed safely in a simple manner.

Aufgabe der Erfindung ist es, einen gattungsgemäßen Saugbändertisch derart weiterzuentwickeln, daß der Bogentransport in jeder Betriebslage sicher gestaltet und nachjustiert werden kann, wobei insbesondere eine selbsttätige Einstellung des Saugluftbedarfes der vorderen Kammer erwünscht ist.The object of the invention is to provide a generic suction belt table to further develop that the sheet transport is designed safely in any operating situation and can be readjusted, in particular an automatic setting the suction air requirement of the front chamber is desired.

Die Lösung dieser Aufgabe gestaltet sich nach dem Anspruch 1.This object is achieved according to claim 1.

Die Vorrichtung nach der Erfindung weist große Vorteile in Bezug auf die Regulierbarkeit und Beeinflussung der Transportsicherheit von Bogen auf den Saugbändertischen auf. Insbesondere beim Ablaufen der Bogen vom Saugbändertisch stellen sich Vorteile dadurch ein, dass ein übermäßiger Unterdruck vermieden wird, der die Saugbänder am Saugbändertisch anhalten lassen kann.The device according to the invention has great advantages in relation to the Regulating and influencing the transport safety of sheets on the Suction belt tables. Especially when the sheets run off from Suction belt table have advantages in that an excessive Vacuum is avoided by stopping the suction belts on the suction belt table can leave.

Die Erfindung wird im folgenden anhand von zeichnerischen Darstellungen näher beschrieben.The invention is explained in more detail below with the aid of graphic representations described.

Darin zeigen:

Figur 1
eine Seitenansicht der erfinderischen Vorrichtung,
Figur 2
eine Draufsicht auf die erfinderische Vorrichtung,
Figur 3
ein Detail aus der erfinderischen Vorrichtung
und Figur 4
eine Variante des Details aus der erfinderischen Vorrichtung.
In it show:
Figure 1
a side view of the inventive device,
Figure 2
a plan view of the inventive device,
Figure 3
a detail from the inventive device
and Figure 4
a variant of the detail from the inventive device.

In Figur 1 ist ein Teil eines Saugbändertisches dargestellt. Der Saugbändertisch enthält einen Hauptsaugkasten 1, über den Saugbänder 7 geführt werden. Der Hauptsaugkasten 1 weist einen Saugraum 2 auf, dessen Deckseite durch ein gelochtes Deckblech 3 begrenzt wird. In dem Deckblech 3 sind Öffnungen 4 zum Durchtritt von Saugluft vorgesehen. Die Saugluft wirkt durch die Öffnungen 4 auf Druckbogen, die an den Saugbändem 7 geführt werden. Weiterhin ist im vorderen Teil des Hauptsaugkastens 1 ein Saugraum 9 vorgesehen, der über weitere Öffnungen 4 ebenso mit den Saugbändem 7 verbunden ist. Die Saugbänder 7 werden über Umlenkrollen 8 am Tischende, d.h. jenseits des Hauptsaugkastens 1 geführt. Der Saugraum 2 ist weiterhin mit einem Saugstutzen 5 und über diesen mit einem Lüfter 6 verbunden.In Figure 1, part of a suction belt table is shown. The suction belt table contains a main suction box 1, over which suction belts 7 are guided. The Main suction box 1 has a suction space 2, the top side of which by perforated cover plate 3 is limited. In the cover plate 3 openings 4 are Passage of suction air provided. The suction air acts through the openings 4 Print sheets that are guided on the suction belts 7. Furthermore, in the front Part of the main suction box 1, a suction chamber 9 is provided, which has more Openings 4 is also connected to the suction belts 7. The suction belts 7 are guided over pulleys 8 at the end of the table, i.e. beyond the main suction box 1 guided. The suction chamber 2 is also with a suction nozzle 5 and with this connected to a fan 6.

Im Saugstutzen 5 schließt sich weiterhin ein Hilfssaugrohr 12 an. Das Hilfssaugrohr 12 wirkt als Injektorstutzen für eine zusätzliche Absaugung. Funktionell ist die Wirkungsweise mit einer Strahlpumpe vergleichbar. Daher mündet das Hilfssaugrohr 12 in einem Krümmer, dessen Saugöffnung dem Lüfter 6 zugewandt ist. Bei Druckentlastung durch Freilaufen des Saugbändertisches entsteht so im Bereich des Hilfssaugrohres 12 eine erhöht Strömung, die einen Unterdruck in dem Hilfssaugrohr 12 aufbaut.
Das Hilfssaugrohr 12 ist über ein Rohr 10 mit einem Anschluß 11 und dem Saugraum 16 an den Saugraum 9 angeschlossen. Im Bereich des Rohres 10 ist eine Zusatzbelüftung vorgesehen. Die Zusatzbelüftung wird gebildet durch einen Ring 13, der mit Öffnungen 14 versehen ist, die wiederum mit Öffnungen 15 in dem Rohr 10 korrespondieren. Durch Verdrehen des gelochten Ringes 15 kann Bypass-Luft in das Rohr 10 geleitet werden und damit der Unterdruck reguliert werden. Schließlich wird der Saugraum 16 mit dem Saugraum 9 mittels einer Öffnung 17 verbunden.An auxiliary suction pipe 12 continues to connect in the suction nozzle 5. The auxiliary suction pipe 12 acts as an injector nozzle for additional suction. Functionally, the mode of operation is comparable to a jet pump. Therefore, the auxiliary suction pipe 12 opens into a manifold, the suction opening of which faces the fan 6. When pressure is relieved by the suction belt table running free, an increased flow arises in the area of the auxiliary suction pipe 12, which builds up a negative pressure in the auxiliary suction pipe 12.
The auxiliary suction pipe 12 is connected to the suction chamber 9 via a pipe 10 with a connection 11 and the suction chamber 16. Additional ventilation is provided in the area of the pipe 10. The additional ventilation is formed by a ring 13, which is provided with openings 14, which in turn correspond to openings 15 in the tube 10. By rotating the perforated ring 15, bypass air can be passed into the tube 10 and the vacuum can thus be regulated. Finally, the suction chamber 16 is connected to the suction chamber 9 by means of an opening 17.

In Figur 2 ist die gesamte Anordnung von der Oberseite her dargestellt. Hierbei ist der Saugstutzen 5 dargestellt, in den das Saugrohr 12 hineinragt. Das Rohr 10 verbindet den Saugstutzen 5 mit dem Saugraum 16 im Saugbändertisch über den Rohranschluß 11. Die Hilfsbelüftung ist in diesem Fall nicht näher gezeigt. Über die Oberseite des Saugbändertisches, die durch das Deckblech 3 gebildet wird und von Öffnungen 4 durchbrochen ist, werden die Saugbänder 7 mit ihren Saugöffnungen geführt. Der Saugbändertisch ist mit seinem Hauptsaugkasten 1 in Draufsicht dargestellt und weist eine erste Anordnung von Hohlräumen 2 auf. Im vorderen Bereich des Saugbändertisches, d.h. in dem Bereich, wo die Bogen vom Saugbändertisch ablaufen, ist ein zusätzlicher Saugraum 9 vorgesehen. Der Saugraum 9 ist mit dem Saugraum 16 verbunden. Weiterhin ist der Saugraum 9 über Öffnungen 17 mit dem Saugraum 2, d.h. dem Hauptsaugkasten 1, verbunden. Die Saugbänder werden an der Vorderseite des Saugbändertisches über Umlenkrollen 8 geführt.In Figure 2, the entire arrangement is shown from the top. Here is the suction nozzle 5 is shown, into which the suction pipe 12 projects. The pipe 10 connects the suction nozzle 5 to the suction chamber 16 in the suction belt table via the Pipe connection 11. The auxiliary ventilation is not shown in this case. about the top of the suction belt table, which is formed by the cover plate 3 and is pierced by openings 4, the suction belts 7 with their Suction openings guided. The suction belt table with its main suction box is 1 in Shown top view and has a first arrangement of cavities 2. in the front area of the suction belt table, i.e. in the area where the arches from An additional suction chamber 9 is provided. The Suction chamber 9 is connected to suction chamber 16. Furthermore, the suction chamber 9 via openings 17 with the suction space 2, i.e. the main suction box 1 connected. The suction belts are placed on the front of the suction belt table Deflection rollers 8 out.

In Figur 3 ist ein Detail der Verbindung zwischen dem Saugraum 9 und dem Saugraum 2 näher dargestellt. Beispielsweise kann eine Öffnung 17 in der Wandung zwischen den beiden Hohlräumen 2, 9 mit einer Kugel 19 verschlossen werden. Die Kugel 19 setzt sich dabei in der Art eines Rückschlagventiles beispielsweise unter Federkraft in den Sitz der Öffnung 17. Weiterhin kann die Kugel 19 auch einen beidseitigen Sitz aufweisen, so daß eine Überdruckregulierung zwischen den beiden Hohlräumen 9 und 2 erfolgen kann. Die Kugel 19 kann dazu gegen den jeweiligen Sitz mittels einer schwachen Feder angestellt werden, die zusätzlich entsprechend einem gewünschten Überdruck in ihrer Vorspannung einstellbar sein kann.In Figure 3 is a detail of the connection between the suction chamber 9 and the Suction chamber 2 shown in more detail. For example, an opening 17 in the Wall between the two cavities 2, 9 closed with a ball 19 become. The ball 19 settles in the manner of a check valve for example under spring force in the seat of the opening 17. Furthermore, the Ball 19 also have a seat on both sides, so that overpressure regulation can take place between the two cavities 9 and 2. The ball 19 can do this against the respective seat by means of a weak spring, which additionally according to a desired overpressure in its preload can be adjustable.

In Figur 4 ist eine Variation des zuvor bereits beschriebenen Verschlusses zwischen den beiden Hohlräumen 9 und 2 gezeigt. Zwischen dem Deckblech 3 und dem Hauptsaugkasten 1 ist die Öffnung 17 gezeigt. Die Öffnung 17 kann durch eine Klappe 18 verschlossen werden. Diese Klappe kann derart angefedert sein, daß sie unter einer Überdruckwirkung von der Seite des Saugraumes 9 aus geöffnet werden kann. Gleichfalls gilt dies für einen erhöhten Unterdruck auf der Seite des Saugraumes 2.In Figure 4 is a variation of the closure previously described shown between the two cavities 9 and 2. Between the cover plate 3 and the main suction box 1, the opening 17 is shown. The opening 17 can through a flap 18 can be closed. This flap can be sprung in such a way that they are under an overpressure effect from the side of the suction chamber 9 can be opened. This also applies to an increased vacuum on the Side of the suction room 2.

Funktionell stellt sich damit folgendes dar:
Beim Absaugen der Luft aus dem Hauptsaugkasten 1 mittels des Lüfters 6 wird zusätzlich Luft über die Rohrverbindung 10, 11, 12 zum vorderen Saugraum 9 hin abgesaugt. Wenn sich unterschiedliche Druckverhältnisse einstellen, so daß im Saugraum 2 ein höherer Unterdruck vorhanden ist als im Saugraum 9, können über die in den Figuren 3 und 4 dargestellten Lösungen Druckausgleichsvorgänge stattfinden, indem z.B. die Kugel 19 oder die Klappe 18 die Öffnung 17 freigeben und einen Druckausgleich gestatten. Damit kommt eine unterstützende Wirkung der Absaugung von Luft aus dem Saugraum 2 für den vorderen Saugraum 9 zustande.
Gleichzeitig wird aber durch die Wirkung des Ventiles zwischen den Hohlräumen 2 und 9 verhindert, daß ein erhöhter Unterdruck aus dem Saugraum 9 in den Saugraum 2 übergreifen kann bzw. in den Saugraum 2 abgebaut wird. Die Anordnung stellt damit sicher, daß beispielsweise beim Leerlaufen des Saugbändertisches und einer Druckerhöhung im Hauptsaugkasten 1 eine unerwünschte Druckerhöhung bzw. Unterdruckminderung im Saugraum 9 stattfindet. Dies könnte gegebenenfalls die Betriebssicherheit des Saugbändertisches beim Ablaufen der letzten Bogen in Frage stellen, wobei diese dann nicht mehr einwandfrei gefördert werden könnten.The following is functionally represented:
When the air is sucked out of the main suction box 1 by means of the fan 6, air is additionally sucked out via the pipe connection 10, 11, 12 to the front suction chamber 9. If different pressure ratios occur, so that a higher vacuum is present in the suction chamber 2 than in the suction chamber 9, pressure equalization processes can take place via the solutions shown in FIGS Allow pressure equalization. This results in a supportive effect of the extraction of air from the suction space 2 for the front suction space 9.
At the same time, however, the action of the valve between the cavities 2 and 9 prevents an increased negative pressure from reaching the suction chamber 9 into the suction chamber 2 or being reduced in the suction chamber 2. The arrangement thus ensures that, for example, when the suction belt table runs empty and there is a pressure increase in the main suction box 1, an undesirable pressure increase or vacuum reduction in the suction space 9 takes place. This could possibly jeopardize the operational safety of the suction belt table when the last sheets run off, which could then no longer be conveyed properly.

Infolge der Anordnung der Saugrohre 10, 11, 12 in der Art einer Strahlpumpe wird sich vielmehr die Saugwirkung auf den vorderen Saugraum 9 erhöhen und für den Fall der ablaufenden letzten Bogen die Betriebssicherheit des Saugbändertisches noch weiter erhöhen.As a result of the arrangement of the suction pipes 10, 11, 12 in the manner of a jet pump rather, the suction effect on the front suction chamber 9 increases and for the In the event of the last sheet running out, the operational safety of the suction belt table increase even further.

Durch die spezifische Anordnung nach der Beschreibung, in der der Saugraum 16 als gemeinsamer Saugraum die Luftführung zu den Saugräumen 9 im Endbereich des Saugbändertisches übernimmt, können die Öffnungen 17 von dem jeweiligen einem Saugband 7 zugeordneten Saugraum 9 auch direkt mit dem Saugraum 2 über die Druckausgleichsvorrichtungen verbunden sein. Die Druckausgleichsvorgänge können dann sogar seitenweise unabhängig voneinander ablaufen und verbessern die Funktionsfähigkeit des Saugbändertisches zusätzlich. Due to the specific arrangement according to the description in which the suction space 16 as a common suction chamber, the air duct to the suction chambers 9 in the end area the suction belt table takes over, the openings 17 of the respective a suction space 9 assigned to a suction band 7 also directly with the suction space 2 be connected via the pressure compensation devices. The Pressure equalization processes can then even be page by page independent run from each other and improve the functionality of the Suction belt table additionally.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
HauptsaugkastenHauptsaugkasten
22
Saugraumsuction
33
Deckblechcover sheet
44
Öffnungenopenings
55
Saugstutzensuction
66
LüfterFan
77
Saugbandsuction belt
88th
Umlenkrollenguide rollers
99
Saugraumsuction
1010
Rohrpipe
1111
Rohranschlußpipe connection
1212
HilfssaugrohrHilfssaugrohr
1313
Ringring
1414
Öffnungopening
1515
Ringring
1616
Saugraumsuction
1717
Öffnungopening
1818
Klappeflap
1919
KugelBullet

Claims (6)

  1. Device for feeding a shingled sheet stream from a separation device to a sheet processing machine with a suction belt table which has two chambers (2; 9, 16) which can be subjected to reduced pressure, which are arranged one behind the other in the transport direction of the sheet stream, and the upper side of which forms the feed plane of the suction belt table, wherein the chambers (2; 9, 16) are provided in the feed plane furthermore with openings (4) over which is driveably guided at least one suction belt (7) likewise provided with openings, and with at least one suction generator (6), by means of which a suction air stream can be generated through the chambers (2; 9, 16) , the openings (4) and the suction belt (7) and with openings (17) which are arranged between the chambers (2; 9, 16) and which can be closed, characterised in
    that the suction belt table is provided with at least two parallel suction belts (7),
    that both of the chambers are constructed as a first suction space (2) in the central part of the suction belt table and as a further suction space (9, 16) in the region of the outflow end of the suction belt table,
    whereby the further suction spaces (9, 16) in each case shorten compared with the length of the first suction chamber (2),
    the suction belt (7) forms the directly arranged suction region,
    that the closable openings (17) are provided with a closure device automatically opening on a pressure difference, and
    that the first suction space (2) and the further suction spaces (9, 16) parallel thereto are linked with one another by means of a tube connection (10, 2, 15) serving to subject the further suction spaces (9, 16) to suction.
  2. Device according to Claim 1, characterised in that there is provided in a separating wall between the first suction space (2) and the further suction spaces (9, 16) in the end region of the suction belt table an automatically operating excess pressure valve device (17, 18; 17, 19) opening in the case of a reduced pressure applying in the first suction space (2) into this.
  3. Device according to Claim 1, characterised in that in a separating wall in each case arranged between the first suction space (2) and a further suction space (9) fitted in each case with a suction belt (7), which each are connected to the suction space (16) and arranged in the end region of the suction belt table, there is provided an automatically actuating excess pressure valve arrangement opening towards this when a lower pressure governs in the first suction space (2).
  4. Device according to Claim 2 or 3, characterised in that in the separating wall between the first suction space (2) and the further suction space (9) an opening (17) is provided which is sealed by means of a sprung valve ball (19) in the direction towards the suction space (9).
  5. Device according to Claim 2 or 3, characterised in that in the separating wall between the first suction space (2) and the further suction space (9) an opening (17) is provided which is sealed by means of a sprung valve flap (18) in the direction toward the suction space (9).
  6. Device according to Claims 1 to 5, characterised in that the tube connection arranged between the first suction space (2) and the further suction space (9, 16) debouches in the region of the generator of reduced pressure constructed as a fan (6) in the fashion of a spray pump into the main suction box (1).
EP00118983A 1999-10-06 2000-09-01 Feed table Expired - Lifetime EP1090863B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19948067A DE19948067A1 (en) 1999-10-06 1999-10-06 Feed table
DE19948067 1999-10-06

Publications (3)

Publication Number Publication Date
EP1090863A2 EP1090863A2 (en) 2001-04-11
EP1090863A3 EP1090863A3 (en) 2002-05-08
EP1090863B1 true EP1090863B1 (en) 2004-01-21

Family

ID=7924644

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00118983A Expired - Lifetime EP1090863B1 (en) 1999-10-06 2000-09-01 Feed table

Country Status (3)

Country Link
EP (1) EP1090863B1 (en)
AT (1) ATE258140T1 (en)
DE (2) DE19948067A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006061399B4 (en) 2006-12-23 2023-06-22 Koenig & Bauer Ag Method of feeding a shingled arc stream

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3001652C2 (en) * 1980-01-17 1984-09-27 Windmöller & Hölscher, 4540 Lengerich Suction channel of a conveyor
DE4203511A1 (en) * 1992-02-07 1993-08-12 Roland Man Druckmasch DEVICE FOR PROMOTING A SCALED FLOW CURRENT TO A BOW PROCESSING MACHINE
DE4442629C2 (en) * 1994-12-01 1998-05-07 Heidelberger Druckmasch Ag Suction belt table
DE19616714A1 (en) * 1996-04-26 1997-11-06 Heidelberger Druckmasch Ag Sheet paper conveyor
DE19724731A1 (en) * 1997-06-12 1998-12-17 Roland Man Druckmasch Feed table

Also Published As

Publication number Publication date
ATE258140T1 (en) 2004-02-15
DE50005071D1 (en) 2004-02-26
EP1090863A2 (en) 2001-04-11
EP1090863A3 (en) 2002-05-08
DE19948067A1 (en) 2001-04-19

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