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EP0884259A2 - Feed table - Google Patents

Feed table Download PDF

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Publication number
EP0884259A2
EP0884259A2 EP98110127A EP98110127A EP0884259A2 EP 0884259 A2 EP0884259 A2 EP 0884259A2 EP 98110127 A EP98110127 A EP 98110127A EP 98110127 A EP98110127 A EP 98110127A EP 0884259 A2 EP0884259 A2 EP 0884259A2
Authority
EP
European Patent Office
Prior art keywords
suction
feed table
suction chamber
pipe
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.)
Granted
Application number
EP98110127A
Other languages
German (de)
French (fr)
Other versions
EP0884259B1 (en
EP0884259A3 (en
Inventor
Wolfgang Matthäus
Harald Bayer
Marc Hinz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Manroland AG
Original Assignee
MAN Roland Druckmaschinen AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by MAN Roland Druckmaschinen AG filed Critical MAN Roland Druckmaschinen AG
Publication of EP0884259A2 publication Critical patent/EP0884259A2/en
Publication of EP0884259A3 publication Critical patent/EP0884259A3/en
Application granted granted Critical
Publication of EP0884259B1 publication Critical patent/EP0884259B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • 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
    • B65H2406/366—Means for producing, distributing or controlling suction producing vacuum
    • B65H2406/3661—Injectors

Definitions

  • the invention relates to a feed table for sheet-processing printing machines according to the preamble of claim 1.
  • the object of the invention is therefore one intended for simple applications and in a simple manner with the functions of the double chamber arrangement equipped feed table to create.
  • the feed table is therefore equipped with two suction boxes provided with suction air.
  • the suction air supply is done via only one single fan, with the additional front suction chamber through a connecting pipe is coupled to the main suction chamber.
  • the connecting pipe is so involved in the suction air supply that the suction from the Connection pipe in the form of the injector ventilation.
  • a feed table 1 is shown in a longitudinal section. It has a main suction box 2, which is closed on its top with a table cover 3. The table cover 3 is provided with suction openings 4.
  • An intake pipe 5 is attached to the underside of the main suction box 2.
  • the intake pipe 5 connects the main suction box 2 to a fan 6, which is only indicated here.
  • At least one suction belt 7 runs around the main suction box 2 or around the feed table 1.
  • the suction belt or suction belts 7 are provided with a hole pattern corresponding to, for example, FIG. 2.
  • the one or more suction belts 7 are guided at the end of the feed table 1 over deflection rollers 8.
  • An auxiliary suction chamber 9 is also provided in the feed table 1. It stretches in the front towards the sheet processing machine, ie. in Direction of sheet travel at the end of the feed table 1, across the width of the feed table 1 at least as far as the suction belts 7 specify. Longitudinal of the feed table 1, it has only a small extent.
  • the table cover 3 above the auxiliary suction chamber 9 is also provided with a suction opening 4.
  • a suction chamber 16 is provided to supply the auxiliary suction chamber 9 with suction air intended.
  • a connecting piece 11 is coupled, the again with a suction pipe 10 opens into the suction pipe 5.
  • the suction pipe 10 is bent and as a nozzle 12 in the direction curved towards the fan 6.
  • the suction pipe contains 10 ventilation openings 15.
  • a metering collar 13 is arranged above the ventilation openings 15, which is also provided with ventilation openings 14.
  • the ventilation openings 14 and 15 can cover by rotating the dosing collar 13 to be brought. This makes it possible to get a certain amount of bad air in to guide the suction pipe 10 and the pressure or negative pressure in the suction space 16 to control with it.
  • Fig. 2 the feed table 1 is shown from its top, only the essential parts being shown. It can be seen that the suction pipe 10 opens with its socket 12 in the suction pipe 5. On the other hand, the suction pipe 10 is coupled with the nozzle 11 to the suction space 16. The suction space 16 widens towards the front end of the feed table 1 and opens into the auxiliary suction chamber 9.
  • the main suction box 2 is closed on its upper side by the table cover 3, which is provided with suction openings 4 in the area of the guides of the suction belts 7. This provides the connection of the main suction box 2 to the area of the suction belts 7 and to the sheet which may lie thereon.
  • the air supply to the suction belts 7 takes place, on the one hand, directly via the suction pipe 5 and the main suction box 2. Furthermore, a suction air supply is provided via the suction pipe 10, the suction chamber 16 and the auxiliary suction chamber 9. The latter suction air supply acts only in the area of the front suction openings 4 through the suction belt or suction belts 7.
  • the vacuum in the suction space 16 or in the auxiliary suction chamber 9 thus rises and acts in an increased holding force the bows in the area of the suction belts 7 above the auxiliary suction chamber 9. This is very advantageous, especially in the case of the falling negative pressures, as is the case with idling Feed table 1 is the case, the sheets continue to be safely guided can be.
  • the vacuum is controlled by that the suction pipe 10 is provided with ventilation openings on its circumference.
  • a metering collar 13 is arranged in the area of these ventilation openings 15.
  • ventilation openings 14 provided with the ventilation openings 15 in the intake manifold 10 can be brought to cover.
  • the metering collar can be used 13 are rotated in order to partially open the ventilation openings 15. This vacuum control works even with the feed table fully covered 1. Then the pressure for the entire feed table 1 falls in this area from. This is a particularly simple way of regulating the pressure inside the feed table 1 possible.

Landscapes

  • Delivering By Means Of Belts And Rollers (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Valve Device For Special Equipments (AREA)
  • Supplying Of Containers To The Packaging Station (AREA)
  • Manufacturing And Processing Devices For Dough (AREA)
  • Vacuum Packaging (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)

Abstract

A first suction chamber (2) in the form of a main suction box is connected directly to a further, suction chamber in the form of an auxiliary suction box (9) on the discharge end of the delivery table, by means of a suction connecting pump. The top surfaces of the suction chambers have openings over which circulates a suction belt (7) possessing openings, and with a breather (6) for producing a vacuum in the suction chambers. A suction pipe (10) inside a pipe (5) connected to the main suction box opens into a socket (12) opening towards the breather. The suction pipe has ventilation openings (15) with dispenser (13) with matching ventilation openings (14).

Description

Die Erfindung betrifft einen Anlegetisch für bogenverarbeitende Druckmaschinen entsprechend dem Oberbegriff des Patentanspruchs 1.The invention relates to a feed table for sheet-processing printing machines according to the preamble of claim 1.

Aus der Patentliteratur sind vielfältig Anlegetische für die Zufuhr von unterschuppt liegendem Bogenmaterial von einem Anlegerstapel zu einer bogenverarbeitenden Maschine bekannt. Hierbei werden unter anderem Vorrichtungen verwendet, in denen das Bogenmaterial mittels eines Unterdruckes auf gelochten Transportbändern gehalten wird. Dazu sind innerhalb des Anlegetisches eine oder auch mehrere Saugkammern angeordnet. In der Oberseite bzw. der Tischfläche des Anlegetisches sind Öffnungen vorgesehen. Über diese Öffnungen in der Oberseite des Anlegetisches hin werden Bogen einzeln oder unterschuppt geführt. In einer Fortbildung solcher Vorrichtungen ist es bekannt, an der zur bogenverarbeitenden Maschine hin gerichteten Seite des Anlegetisches eine zusätzliche kleine Saugkammer anzuordnen. Diese dient dazu, die Haltekräfte auf die wegen der Abdeckung durch den nachfolgenden Bogen nur teilweise auf den Transportbändern aufliegenden Bogen zu sichern. Damit wird erreicht, daß im Bereich des Ablaufens vom Anlegetisch der Bogen vor der Zufuhr zur bogenverarbeitenden Maschine hin noch ausreichend sicher geführt und gut ausgerichtet der Maschine zugeführt werden kann.From the patent literature, there are various feed tables for the supply of shingled lying sheet material from a feeder stack to a sheet processing one Machine known. Among other things, devices are used in which the sheet material by means of a vacuum on perforated conveyor belts is held. For this there are one or also within the feed table several suction chambers arranged. In the top or the table surface of the Openings are provided for the feed table. Through these openings in the top towards the feed table, sheets are fed individually or under shed. In a Further training of such devices, it is known on the sheet processing Machine facing side of the feed table an additional small Arrange suction chamber. This serves to maintain the holding forces due to the Covered by the following sheet only partially on the conveyor belts secure overlying arch. This ensures that in the area of running from the feed table to the sheet before it is fed to the sheet processing machine still adequately safely guided and well aligned with the machine can be supplied.

Darüber hinaus ist es beispielsweise bekannt, diese zusätzliche Saugkammer mit einem separaten Lufterzeuger zu versorgen und diesen getrennt von der Hauptsaugkammer des Anlegetisches zu steuern. Dies hat den Vorteil, daß die Luftbeeinflußung an der zusätzlichen Saugkammer unabhängig von der Hauptsaugkammer eingestellt werden kann. Nachteilig ist, daß ein sehr hoher Geräteaufwand betrieben werden muß, der vor allem bei kleineren bogenverarbeitenden Maschinen in keinem Verhältnis zum Effekt steht.In addition, it is known, for example, to have this additional suction chamber to supply a separate air generator and this separately from the To control the main suction chamber of the feed table. This has the advantage that the Air influence on the additional suction chamber regardless of the Main suction chamber can be adjusted. The disadvantage is that a very high Equipment needs to be operated, especially with smaller sheet processing Machines disproportionate to the effect.

Aufgabe der Erfindung ist es daher, einen für einfache Anwendungsfälle gedachten und auf einfache Weise mit den Funktionen der Doppelkammeranordnung ausgestatteten Anlegetisch zu schaffen.The object of the invention is therefore one intended for simple applications and in a simple manner with the functions of the double chamber arrangement equipped feed table to create.

Die Lösung dieser Aufgabe ergibt sich aus dem Kennzeichen des Patentanspruchs 1. Der Anlegetisch ist demnach mit zwei Saugkästen zur Beaufschlagung mit Saugluft versehen. Die Saugluftversorgung geschieht dabei über lediglich einen einzigen Lüfter, wobei die zusätzliche vordere Saugkammer durch ein Verbindungsrohr an die Hauptsaugkammer angekoppelt ist. Das Verbindungsrohr ist derartig in die Saugluftversorgung eingebunden, daß die Absaugung aus dem Verbindungrohr in Form der Injektorentlüftung erfolgt. Weiterhin ist an dem Verbindungsrohr ein Drosselelement angeordnet.The solution to this problem results from the characterizing part of the patent claim 1. The feed table is therefore equipped with two suction boxes provided with suction air. The suction air supply is done via only one single fan, with the additional front suction chamber through a connecting pipe is coupled to the main suction chamber. The connecting pipe is so involved in the suction air supply that the suction from the Connection pipe in the form of the injector ventilation. Furthermore is on the connecting pipe a throttle element arranged.

Im folgenden wird anhand von zeichnerischen Darstellungen die Erfindung im einzelnen erläutert.In the following, the invention is based on drawings individual explained.

Gezeigt werden in

Fig. 1
ein Schnitt durch den Anlegetisch und in
Fig. 2
eine Draufsicht auf den Anlegetisch.
Are shown in
Fig. 1
a section through the feed table and in
Fig. 2
a top view of the feed table.

In Fig. 1 ist ein Anlegetisch 1 in einem Längsschnitt dargestellt. Er weist einen Hauptsaugkasten 2 auf, der an seiner Oberseite mit einer Tischabdeckung 3 geschlossen ist. Die Tischabdeckung 3 ist mit Ansaugöffnungen 4 versehen. An der Unterseite des Hauptsaugkastens 2 ist ein Ansaugrohr 5 angebracht. Das Ansaugrohr 5 verbindet den Hauptsaugkasten 2 mit einem Lüfter 6, der hier nur angedeutet ist. Um den Hauptsaugkasten 2 bzw. um den Anlegetisch 1 läuft wenigstens ein Saugband 7 um. Das Saugband bzw. die Saugbänder 7 sind mit einem Lochmuster entsprechend beispielsweise Fig. 2 versehen. Das oder die Saugbänder 7 werden am Ende des Anlegetisches 1 über Umlenkrollen 8 geführt.In Fig. 1 , a feed table 1 is shown in a longitudinal section. It has a main suction box 2, which is closed on its top with a table cover 3. The table cover 3 is provided with suction openings 4. An intake pipe 5 is attached to the underside of the main suction box 2. The intake pipe 5 connects the main suction box 2 to a fan 6, which is only indicated here. At least one suction belt 7 runs around the main suction box 2 or around the feed table 1. The suction belt or suction belts 7 are provided with a hole pattern corresponding to, for example, FIG. 2. The one or more suction belts 7 are guided at the end of the feed table 1 over deflection rollers 8.

Im Anlegetisch 1 ist weiterhin eine Hilfssaugkammer 9 vorgesehen. Sie erstreckt sich im vorderen zur bogenverarbeitenden Maschine hin gerichteten Teil, dh. in Bogenlaufrichtung am Ende des Anlegetisches 1, über die Breite des Anlegetisches 1 wenigstens so weit wie es die Saugbänder 7 vorgeben. In Längsrichtung des Anlegetisches 1 hat sie nur eine geringe Ausdehnung. Die Tischabdeckung 3 oberhalb der Hilfssaugkammer 9 ist ebenfalls mit einer Ansaugöffnung 4 versehen. Zur Versorgung der Hilfssaugkammer 9 mit Saugluft ist ein Saugraum 16 vorgesehen. An den Saugraum 16 ist ein Anschlußstutzen 11 angekoppelt, der wiederum mit einem Saugrohr 10 in dem Ansaugrohr 5 mündet. Innerhalb des Ansaugrohres 5 ist das Saugrohr 10 umgebogen und als Stutzen 12 in Richtung zum Lüfter 6 hin gekrümmt. Weiterhin enthält das Saugrohr 10 Belüftungsöffnungen 15. Oberhalb der Belüftungsöffnungen 15 ist ein Dosierstellring 13 angeordnet, der ebenfalls mit Belüftungsöffnungen 14 versehen ist. Die Belüftungsöffnungen 14 und 15 können mittels Verdrehen des Dosierstellringes 13 zur Deckung gebracht werden. Dadurch ist es möglich einen bestimmten Betrag von Fehlluft in das Saugrohr 10 zu leiten und den Druck bzw. Unterdruck in dem Saugraum 16 damit zu steuern.An auxiliary suction chamber 9 is also provided in the feed table 1. It stretches in the front towards the sheet processing machine, ie. in Direction of sheet travel at the end of the feed table 1, across the width of the feed table 1 at least as far as the suction belts 7 specify. Longitudinal of the feed table 1, it has only a small extent. The table cover 3 above the auxiliary suction chamber 9 is also provided with a suction opening 4. A suction chamber 16 is provided to supply the auxiliary suction chamber 9 with suction air intended. At the suction chamber 16, a connecting piece 11 is coupled, the again with a suction pipe 10 opens into the suction pipe 5. Within the Intake pipe 5, the suction pipe 10 is bent and as a nozzle 12 in the direction curved towards the fan 6. Furthermore, the suction pipe contains 10 ventilation openings 15. A metering collar 13 is arranged above the ventilation openings 15, which is also provided with ventilation openings 14. The ventilation openings 14 and 15 can cover by rotating the dosing collar 13 to be brought. This makes it possible to get a certain amount of bad air in to guide the suction pipe 10 and the pressure or negative pressure in the suction space 16 to control with it.

In Fig 2 ist der Anlegetisch 1 von seiner Oberseite her dargestellt, wobei nur die wesentlichen Teile gezeigt werden. Es ist erkennbar, daß das Saugrohr 10 mit seinem Stutzen 12 in dem Ansaugrohr 5 mündet. Andererseits ist das Saugrohr 10 mit dem Stutzen 11 an den Saugraum 16 angekoppelt. Der Saugraum 16 erweitert sich zum vorderen Ende des Anlegetisches 1 hin und mündet in der Hilfssaugkammer 9. Der Hauptsaugkasten 2 ist an seiner Oberseite mit der Tischabdeckung 3 verschlossen, die aber im Bereich der Führungen der Saugbänder 7 mit Ansaugöffnungen 4 versehen ist. So ist die Verbindung des Hauptsaugkastens 2 zum Bereich der Saugbänder 7 und den gegebenenfalls darauf liegenden Bogen gegeben. Die Luftbeaufschlagung an den Saugbändern 7 erfolgt einerseits direkt über das Ansaugrohr 5 und den Hauptsaugkasten 2. Weiterhin ist eine Saugluftversorgung über das Saugrohr 10, den Saugraum 16 und die Hilfssaugkammer 9 gegeben. Die letztere Saugluftversorgung wirkt nur im Bereich der vorderen Ansaugöffnungen 4 durch das Saugband bzw. die Saugbänder 7.In Fig. 2 the feed table 1 is shown from its top, only the essential parts being shown. It can be seen that the suction pipe 10 opens with its socket 12 in the suction pipe 5. On the other hand, the suction pipe 10 is coupled with the nozzle 11 to the suction space 16. The suction space 16 widens towards the front end of the feed table 1 and opens into the auxiliary suction chamber 9. The main suction box 2 is closed on its upper side by the table cover 3, which is provided with suction openings 4 in the area of the guides of the suction belts 7. This provides the connection of the main suction box 2 to the area of the suction belts 7 and to the sheet which may lie thereon. The air supply to the suction belts 7 takes place, on the one hand, directly via the suction pipe 5 and the main suction box 2. Furthermore, a suction air supply is provided via the suction pipe 10, the suction chamber 16 and the auxiliary suction chamber 9. The latter suction air supply acts only in the area of the front suction openings 4 through the suction belt or suction belts 7.

Im Normalbetrieb des Anlegetisches 1 ergibt sich eine Druckverteilung auf den Hauptsaugkasten 2 und den Saugraum 16, die in einem Gleichgewicht liegen. Während des Betriebes werden nämlich durch die auf den Saugbändern 7 aufliegenden Bogen alle Ansaugöffnungen 4 abgedeckt. Damit kann kein Luftstrom durch den Hauptsaugkasten 2 und den Saugraum 16 entstehen. Es entsteht vielmehr ein niedriger sich über die Fläche des Anlegetisches 1 symmetrisch verteilender und gleichmäßig anfallender Unterdruck. Damit können die Bogen kontinuierlich über den Anlegetisch 1 gefördert werden. Die Beeinflußung der Bogen im Bereich der vorderen Hilfssaugkammer 9 ist nicht stärker als auf dem Rest des Anlegetisches 1. Dies ist auch sinnvoll, da die Bogen noch von Folgebogen gehalten werden. Beim Leerlaufen des Anlegetisches 1 z.B. bei Beendigung eines Druckauftrages werden sich aber in Bogenlaufrichtung gesehen am Anfang des Anlegetisches 1 Teile der Saugbänder 7 kontinuierlich zur Umgebung hin öffnen. Damit entsteht in wachsendem Masse in dem Hauptsaugkasten 2 eine Luftströmung und der Unterdruck im Ansaugrohr 5 bzw. dem Hauptsaugkasten 2 fällt schnell ab. Gleichzeitig wird durch die entstehenden Luftströmung aber im Ansaugrohr 5 ein verstärkter Sog erzeugt, der den Stutzen 12 beeinflußt. Die Luftströmung saugt infolge der sogenannten Injektorwirkung aus dem Stutzen 12 vermehrt Luft ab. Damit wird der Unterdruck im Saugrohr 10 erhöht, während der Unterdruck im Hauptsaugkasten 2 abfällt. Der Unterdruck im Saugraum 16 bzw. in der Hilfssaugkammer 9 steigt also an und wirkt in einer verstärkten Haltekraft auf die Bogen im Bereich der Saugbänder 7 oberhalb der Hilfssaugkammer 9. Dies ist sehr vorteilhaft, da gerade bei den abfallenden Unterdrücken, wie dies bei leerlaufendem Anlegertisch 1 der Fall ist, auch weiterhin die Bogen sicher geführt werden können.In normal operation of the feed table 1, there is a pressure distribution on the Main suction box 2 and the suction chamber 16, which are in equilibrium. During operation, namely, those lying on the suction belts 7 Arch all suction openings 4 covered. So no airflow can through the main suction box 2 and the suction chamber 16. Rather, it arises a lower one which is symmetrically distributed over the surface of the feed table 1 and evenly generated negative pressure. This allows the sheets to run continuously be promoted via the feed table 1. Influencing the bow in The area of the front auxiliary suction chamber 9 is no stronger than on the rest of the Feed table 1. This also makes sense since the sheets are still held by subsequent sheets will. When the feed table 1 is empty, e.g. upon termination of a Print jobs are seen in the direction of sheet travel at the beginning of the Open the feed table 1 continuously of the suction belts 7 to the environment. This creates an increasing flow of air in the main suction box 2 and the negative pressure in the intake pipe 5 or the main suction box 2 falls quickly. At the same time, however, the air flow created in the intake pipe 5 generates an increased suction, which affects the nozzle 12. The air flow sucks from the nozzle 12 due to the so-called injector effect increases the amount of air. So that the negative pressure in the intake manifold 10 is increased during the Vacuum in main suction box 2 drops. The vacuum in the suction space 16 or in the auxiliary suction chamber 9 thus rises and acts in an increased holding force the bows in the area of the suction belts 7 above the auxiliary suction chamber 9. This is very advantageous, especially in the case of the falling negative pressures, as is the case with idling Feed table 1 is the case, the sheets continue to be safely guided can be.

Bei dünneren Papieren kann es vorteilhaft sein, den Unterdruck für diesen Fall noch zu reduzieren, da es leicht zum Durchsaugen und damit zum Aneinanderhaften der Bogen kommen kann. Die Steuerung des Unterdruckes erfolgt dadurch, daß das Saugrohr 10 mit Belüftungsöffnungen an seinem Umfang versehen ist. Im Bereich dieser Belüftungsöffnungen 15 ist ein Dosierstellring 13 angeordnet. In dem Dosierstellring 13 sind ebenfalls Belüftungsöffnungen 14 vorgesehen, die mit den Belüftungsöffnungen 15 im Saugrohr 10 zur Deckung gebracht werden können. Zur Regelung des Unterdruckes im Saugrohr 10 kann also der Dosierstellring 13 verdreht werden um die Belüftungsöffnungen 15 teilweise freizugeben. Diese Unterdruckregelung funktioniert auch bei vollkommen angedecktem Anlegetisch 1. Dann fällt in diesem Bereich der Druck für den ganzen Anlegetisch 1 ab. Damit ist eine besonders einfache Regelung des Druckes innerhalb des Anlegetisches 1 möglich. With thinner papers, it can be advantageous to use the negative pressure for this case still to be reduced, since it is easy to suck through and thus to stick together the bow can come. The vacuum is controlled by that the suction pipe 10 is provided with ventilation openings on its circumference. in the A metering collar 13 is arranged in the area of these ventilation openings 15. In the metering ring 13 are also ventilation openings 14 provided with the ventilation openings 15 in the intake manifold 10 can be brought to cover. To regulate the negative pressure in the intake manifold 10, the metering collar can be used 13 are rotated in order to partially open the ventilation openings 15. This vacuum control works even with the feed table fully covered 1. Then the pressure for the entire feed table 1 falls in this area from. This is a particularly simple way of regulating the pressure inside the feed table 1 possible.

BezugszeichenReference numerals

AnlegetischFeed table
11
HauptsaugkastenMain suction box
22nd
TischabdeckungTable cover
33rd
SaugöffnungenSuction openings
44th
SaugrohrIntake manifold
55
LüfterFan
66
SaugbandSuction belt
77
UmlenkrollePulley
88th
HilfssaugkammerAuxiliary suction chamber
99
SaugrohrIntake manifold
1010th
StutzenSupport
1111
StutzenSupport
1212th
DosierstellringDosing collar
1313
BelüftungsöffnungVentilation opening
1414
BelüftungsöffnungVentilation opening
1515
SaugraumSuction chamber
1616

Claims (6)

Anlegetisch zum Transport von Bogen von einem Bogenanleger zu einer bogenverarbeitenden Maschine mit wenigstens einer Saugkammer und mit einer am ablaufseitigen Ende des Anlegetisches angeordneten weiteren Saugkammer, die sich über einen kleinen Längenbereich des Anlegetisches erstreckt, wobei die Saugkammern in der Oberfläche des Anlegetisches mit Öffnungen versehen sind, über denen wenigstens ein mit Öffnungen versehenes Saugband umläuft, und weiterhin mit einem Lüfter zur Erzeugung eines Unterdruckes in den Saugkammern,
dadurch gekennzeichnet,
daß die weitere Saugkammer (9) mittels einer Saugverbindung mit der ersten Saugkammer (2) direkt verbunden ist, derart daß bei Abfall des Unterdruckes in der ersten Saugkammer (2) durch Einströmen von Luft der Unterdruck in der weiteren Saugkammer (9) ansteigt.Feed table for transporting sheets from a sheet feeder to a sheet processing machine with at least one suction chamber and with a further suction chamber arranged at the outlet end of the feed table, which extends over a small length range of the feed table, the suction chambers being provided with openings in the surface of the feed table , over which at least one suction belt provided with openings rotates, and furthermore with a fan for generating a negative pressure in the suction chambers,
characterized by
that the further suction chamber (9) is directly connected to the first suction chamber (2) by means of a suction connection, such that when the negative pressure in the first suction chamber (2) drops, the negative pressure in the further suction chamber (9) increases due to the inflow of air. Anlegetisch nach Anspruch 1,
dadurch gekennzeichnet,
daß die weitere Saugkammer eine Hilfssaugkammer (9) und die ersten Saugkammer ein Hauptsaugkasten (2) ist, und der Hauptsaugkasten (2) mit der Hilfssaugkammer (9) in Form einer Strahlpumpe verbunden ist.Feed table according to claim 1,
characterized by
that the further suction chamber is an auxiliary suction chamber (9) and the first suction chamber is a main suction box (2), and the main suction box (2) is connected to the auxiliary suction chamber (9) in the form of a jet pump. Anlegetisch nach Anspruch 1 oder 2,
dadurch gekennzeichnet,
daß zwischen der Hilfssaugkammer (9) und dem Hauptsaugkasten (2) ein Saugrohr (10) vorgesehn ist, und daß das Saugrohr (10) in einem mit dem Hauptsaugkasten (2) verbundenen Ansaugrohr (5) mit einem zum Lüfter (6) hin geöffneten Stutzen (12) mündet. Feed table according to claim 1 or 2,
characterized by
that a suction pipe (10) is provided between the auxiliary suction chamber (9) and the main suction box (2), and that the suction pipe (10) in an intake pipe (5) connected to the main suction box (2) with one open to the fan (6) Socket (12) opens. Anlegetisch nachAnspruch 3,
dadurch gekennzeichnet,
daß der Stutzen (12) innerhalb des Ansaugrohres (5) im Bereich der größten Strömung mündet.Feed table according to claim 3,
characterized by
that the nozzle (12) opens inside the intake pipe (5) in the region of the greatest flow. Anlegetisch nach einem Ansprüche 1 bis 4,
dadurch gekennzeichnet,
daß an dem Saugrohr (10) eine Belüftungseinrichtung vorgesehen ist.Feed table according to one of claims 1 to 4,
characterized by
that a ventilation device is provided on the suction pipe (10). Anlegetisch nach Anspruch 5,
dadurch gekennzeichnet,
daß das Saugrohr (10) mit Belüftungsöffnungen (15) versehen ist und daß den Belüftungsöffnungen (15) ein Dosierstellring (13) mit zu den Belüftungsöffnungen (15) korrellierenden Belüftungsöffnungen (14) verstellbar zugeordnet ist, derart daß die Belüftungsöffnungen (15) gegenüber der Umgebung stufenlos freigebbar oder verschliessbar sind.Feed table according to claim 5,
characterized by
that the suction pipe (10) is provided with ventilation openings (15) and that the ventilation openings (15) has a metering ring (13) with ventilation openings (14) correlating with the ventilation openings (15), so that the ventilation openings (15) are opposite Environment can be released or closed continuously.
EP98110127A 1997-06-12 1998-06-04 Feed table Expired - Lifetime EP0884259B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19724731 1997-06-12
DE19724731A DE19724731A1 (en) 1997-06-12 1997-06-12 Feed table

Publications (3)

Publication Number Publication Date
EP0884259A2 true EP0884259A2 (en) 1998-12-16
EP0884259A3 EP0884259A3 (en) 1999-04-14
EP0884259B1 EP0884259B1 (en) 2000-03-29

Family

ID=7832204

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98110127A Expired - Lifetime EP0884259B1 (en) 1997-06-12 1998-06-04 Feed table

Country Status (3)

Country Link
EP (1) EP0884259B1 (en)
AT (1) ATE191204T1 (en)
DE (2) DE19724731A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1090863A2 (en) * 1999-10-06 2001-04-11 MAN Roland Druckmaschinen AG Feed table

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3838078A1 (en) * 1988-11-10 1989-06-01 Mabeg Maschinenbau Gmbh Nachf Apparatus for conveying an especially imbricated stream of sheets
EP0554774A1 (en) * 1992-02-07 1993-08-11 MAN Roland Druckmaschinen AG Device for forwarding a stream overlapping sheets
EP0680908A1 (en) * 1994-05-07 1995-11-08 Heidelberger Druckmaschinen Aktiengesellschaft Device for adapting the vacuum in a suction belt feeding table comprised in a sheet feeder
GB2289042A (en) * 1994-05-07 1995-11-08 Heidelberger Druckmasch Ag Sheet conveyor
DE4442629A1 (en) * 1994-12-01 1996-06-05 Heidelberger Druckmasch Ag Suction band feed table for sheets of paper

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4013302A1 (en) * 1990-04-26 1991-10-31 Koenig & Bauer Ag DEVICE FOR PROMOTING A PARTICULAR DIVIDED FLOW FROM ARC

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3838078A1 (en) * 1988-11-10 1989-06-01 Mabeg Maschinenbau Gmbh Nachf Apparatus for conveying an especially imbricated stream of sheets
EP0554774A1 (en) * 1992-02-07 1993-08-11 MAN Roland Druckmaschinen AG Device for forwarding a stream overlapping sheets
EP0680908A1 (en) * 1994-05-07 1995-11-08 Heidelberger Druckmaschinen Aktiengesellschaft Device for adapting the vacuum in a suction belt feeding table comprised in a sheet feeder
GB2289042A (en) * 1994-05-07 1995-11-08 Heidelberger Druckmasch Ag Sheet conveyor
DE4442629A1 (en) * 1994-12-01 1996-06-05 Heidelberger Druckmasch Ag Suction band feed table for sheets of paper

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1090863A2 (en) * 1999-10-06 2001-04-11 MAN Roland Druckmaschinen AG Feed table
EP1090863A3 (en) * 1999-10-06 2002-05-08 MAN Roland Druckmaschinen AG Feed table

Also Published As

Publication number Publication date
EP0884259B1 (en) 2000-03-29
EP0884259A3 (en) 1999-04-14
ATE191204T1 (en) 2000-04-15
DE59800109D1 (en) 2000-05-04
DE19724731A1 (en) 1998-12-17

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