EP0922659B1 - Method and device for feeding sheets - Google Patents
Method and device for feeding sheets Download PDFInfo
- Publication number
- EP0922659B1 EP0922659B1 EP98122913A EP98122913A EP0922659B1 EP 0922659 B1 EP0922659 B1 EP 0922659B1 EP 98122913 A EP98122913 A EP 98122913A EP 98122913 A EP98122913 A EP 98122913A EP 0922659 B1 EP0922659 B1 EP 0922659B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sheets
- transport
- belt
- suckers
- sheet
- 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
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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
- B65H3/00—Separating articles from piles
- B65H3/08—Separating articles from piles using pneumatic force
- B65H3/0808—Suction grippers
- B65H3/0816—Suction grippers separating from the top of pile
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H5/00—Feeding articles separated from piles; Feeding articles to machines
- B65H5/06—Feeding articles separated from piles; Feeding articles to machines by rollers or balls, e.g. between 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
- B65H7/00—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles
- B65H7/20—Controlling associated apparatus
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2513/00—Dynamic entities; Timing aspects
- B65H2513/20—Acceleration or deceleration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2513/00—Dynamic entities; Timing aspects
- B65H2513/50—Timing
Definitions
- the invention relates to a method and a device for feeding sheets which are separated by means of separating suction devices arranged on a suction head and which are transported by transport suction devices in the sheet conveying direction to a belt table which is arranged at least two spaced-apart from one another and is guided over at least two deflecting rollers, the sheets being conveyed from the transport belts of the Belt table taken over, transported against front brands and then fed to a downstream sheet processing machine. It is common practice to separate the uppermost sheet of a stack of sheets by means of separating suction devices provided in a suction head and to transfer them to transport suction devices which are also arranged in the suction head and convey the sheet to a belt table.
- the sheets are transported as single sheets or as a sheet scale against front marks, thereby aligned to the front edge and by a side mark to the side edge and then fed to the downstream sheet processing machine.
- the transfer of the sheets conveyed by the transport suction devices to the conveyor belts of the belt table takes place in such a way that a timing roller corresponding to the deflection roller facing the suction head and the conveyor belts of the belt table is provided, which is guided against the deflection roller when the free end of a through the Transport vacuum conveyed sheet is located between the deflection roller and index roller.
- the conveyor belts are constantly driven depending on the respective machine speed.
- a generic sheet feeder unit in which the conveyor belts are driven approximately sinusoidally in such a way that the sheets are transferred from the suction devices to the conveyor belts at about the time of the lowest belt speed. Accordingly, the sheets conveyed by the conveyor belts are applied to the front marks with the lowest conveying speed. If the sheet arrives at the front marks too early or too late, the sheets are fed ahead or behind the conveyor belts by a phase position, by adjusting the working cycle of the suction head and thus the transport suction device in advance or lagging compared to the working cycle of the belt table.
- the object of the invention is a method and an apparatus to create sheets that are independent of texture the substrates to be processed and the machine speed a high feed accuracy and one ensure optimal acceleration.
- the solution according to the invention makes it possible within a Work cycle the movements of the conveyor belts of the conveyor table and to optimize those of the transport vacuum and thus the accelerations as well as the speed profiles of the conveyor belts and the vacuum cleaner so that they have a common Have area in which the accelerations differ from zero and in which the sheet transfer takes place, which is via a large range of rotation angle of a subordinate sheet processing Machine stretches. This ensures that the transported sheets, regardless of the surface condition and the material thickness, without slippage from the conveyor belts be taken over and thus the feeding accuracy of the sheets to the front brands is optimal.
- the device for feeding sheets shown in FIG. 1 consists of a sheet feeder 1, a belt table 2, a feed table 3 and front marks 4 and side marks 5 assigned to the feed table 3.
- the sheet feeder 1 has a suction head 6 with separating suction devices 7 and transport suction devices 8.
- a sheet stack 10 consisting of sheets 9 is provided in sheet feeder 1.
- the belt table 2 arranged downstream of the sheet feeder 1 in the sheet conveying direction 11 has a table plate 17 and belt rolls 12, 13 extending transversely to the sheet conveying direction 11.
- the belt rollers 12, 13 are wrapped by at least two spaced apart conveyor belts 14, which are guided by deflection rollers 15 and tension rollers 16.
- the conveyor belts 14 are driven, for example, by means of the belt roller 12 or 13 in the direction of rotation 18.
- a drive 22, which is designed as a motor 30, is assigned to the belt roller 12 in the exemplary embodiment.
- a clock roller 19 which is controlled against the belt roller 12 in the machine cycle.
- the feed table 3 adjoining the belt table 2 has a side mark 5 on both sides and front marks 4 distributed over the width, which are periodically pivoted below the level of the feed table 3 by means not shown.
- the feed table 3 is followed by a vibrating system 20 and this is followed by the feed drum 21 of a printing unit, not shown. Due to the separating suction device 7 carrying out a lifting movement, the sheets 9 are separated from the sheet stack 10 in cycles and transferred to the transport suction devices 8.
- the transport suction devices 8 grasp the individual sheet 9 in the rear area and transport it in the transport direction 11 until the free end has reached the area between the belt roller 12 and the pivoted-off indexing roller 19. Subsequently, the timing roller 19 is guided against the belt roller 12 by means not shown, so that the sheet 9 is gripped and this is subsequently released by the transport suction devices 8, which in turn are returned to the gripping of a subsequent sheet.
- a drive 23, which can be designed as a motor 31, is assigned to drive the transport suction devices 8.
- the motor 30 and the motor 31 are connected to a control device 24 which, with the inclusion of clock signals from the downstream printing machine, initiated by means of an incremental encoder 25 assigned to the feed drum 21, are controlled with clock-related speed profiles.
- the speed profiles both for the motor 30 driving the belt roller 12 and for the motor 31 assigned to the transport suction devices 8 can be freely selected within a cycle independently of one another. However, they have agreement in a speed range that has a non-zero acceleration.
- the speed profiles 26, 27 are obviously pointing different courses, but are correct in one area 28 match, the accelerations in this area 28 are different from zero.
- this area 28 which is in the exemplary embodiment extends over an angle of rotation ⁇ of approximately 50 °, the sheets 9 are handed over by the transport suction devices 8 to the conveyor belts 14 of the belt table 2 by the Clock roller 19 each of the sheets guided by the transport suction 8 9 brought into operative connection with bands 14 and subsequently is released by the transport suction 8.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Delivering By Means Of Belts And Rollers (AREA)
- Sheets, Magazines, And Separation Thereof (AREA)
Description
Die Erfindung betrifft ein Verfahren und eine Vorrichtung zum Zuführen
von mittels an einem Saugkopf angeordneten Trennsaugern
vereinzelter, durch Transportsauger in Bogenförderrichtung zu einem
mindestens zwei im Abstand zueinander angeordnete sowie über
mindestens zwei Umlenkwalzen geführte Transportbänder enthaltenden
Bändertisch transportierter Bogen, wobei die Bogen von den
Transportbändern des Bändertischs übernommen, gegen Vordermarken
transportiert und nachfolgend einer nachgeordneten bogenverarbeitenden
Maschine zugeführt werden.
Es ist allgemein üblich, durch in einem Saugkopf vorgesehene Trennsauger
den jeweils obersten Bogen eines Bogenstapels zu vereinzeln
und diesen an ebenfalls im Saugkopf angeordnete Transportsauger zu
übergeben, die den Bogen zu einem Bändertisch fördern. Durch die
Transportbänder des Bändertischs werden die Bogen als Einzelbogen
oder als Bogenschuppe gegen Vordermarken transportiert, dabei nach
der Vorderkante sowie durch eine Seitenmarke nach der Seitenkante
ausgerichtet und anschließend der nachgeordneten bogenverarbeitenden
Maschine zugeführt. Die Übergabe der durch die Transportsauger
geförderten Bogen an die Transportbänder des Bändertischs erfolgt
derart, daß eine mit der dem Saugkopf zugewandten, die Transportbänder
des Bändertischs führenden Umlenkwalze korrespondierende
Taktwalze vorgesehen ist, die gegen die Umlenkwalze geführt wird,
wenn sich das freie Ende eines durch die Transportsauger geförderten
Bogens zwischen Umlenkwalze und Taktwalze befindet. Die
Transportbänder werden stetig in Abhängigkeit von der jeweiligen
Maschinengeschwindigkeit angetrieben.
Diese Verfahrensweise bei der Übergabe der Bogen von den Transportsaugern
an die Transportbänder setzt die Ursachen dafür, daß
die Zufuhr der Bogen zu den Vordermarken ungenau erfolgt. So werden
die Bogen, indem die Taktwalze den jeweils zwischen Taktwalze
und Transportbändern befindlichen Bogen gegen die Transportbänder
führt, beschleunigt, so daß in Abhängigkeit von der Oberflächenbeschaffenheit
der Bogen und der Maschinengeschwindigkeit mehr
oder wenig großer Schlupf zwischen Transportbändern und Bogen
auftritt, wodurch die Bogen letztlich zu unterschiedlichen Zeitpunkten
an die Vordermarken gelangen. Darüber hinaus werden die
zur Verarbeitung gelangenden Bedruckstoffe auch in Abhängigkeit
von der Materialstärke zu unterschiedlichen Zeitpunkten von den
Transportbändern erfaßt und nicht zu einem optimalen Zeitpunkt
den Vordermarken zugeführt.The invention relates to a method and a device for feeding sheets which are separated by means of separating suction devices arranged on a suction head and which are transported by transport suction devices in the sheet conveying direction to a belt table which is arranged at least two spaced-apart from one another and is guided over at least two deflecting rollers, the sheets being conveyed from the transport belts of the Belt table taken over, transported against front brands and then fed to a downstream sheet processing machine.
It is common practice to separate the uppermost sheet of a stack of sheets by means of separating suction devices provided in a suction head and to transfer them to transport suction devices which are also arranged in the suction head and convey the sheet to a belt table. Through the conveyor belts of the belt table, the sheets are transported as single sheets or as a sheet scale against front marks, thereby aligned to the front edge and by a side mark to the side edge and then fed to the downstream sheet processing machine. The transfer of the sheets conveyed by the transport suction devices to the conveyor belts of the belt table takes place in such a way that a timing roller corresponding to the deflection roller facing the suction head and the conveyor belts of the belt table is provided, which is guided against the deflection roller when the free end of a through the Transport vacuum conveyed sheet is located between the deflection roller and index roller. The conveyor belts are constantly driven depending on the respective machine speed.
This procedure for the transfer of the sheets from the transport suction devices to the conveyor belts sets the causes for the fact that the sheets are fed inaccurately to the front marks. Thus, the sheets are accelerated by the timing roller guiding the sheet located between the timing roller and the conveyor belts against the conveyor belts, so that depending on the surface condition of the sheet and the machine speed, more or less large slip occurs between the conveyor belts and the sheet, ultimately causing the sheet get to the front brands at different times. In addition, depending on the thickness of the material, the substrates to be processed are captured by the conveyor belts at different times and are not fed to the front marks at an optimal time.
Aus der EP 644 139 B1 ist eine gattungsgemäße Bogenanlegereinheit
bekannt, bei der die Transportbänder etwa sinusförmig so angetrieben
werden, daß die Übergabe der Bogen von den Transportsaugern
an die Transportbänder etwa zum Zeitpunkt der geringsten
Bändergeschwindigkeit erfolgt. Entsprechend werden die durch die
Transportbänder geförderten Bogen mit der geringsten Fördergeschwindigkeit
an den Vordermarken angelegt. Erfolgt die Bogenankunft
an den Vordermarken zu früh oder zu spät, werden durch eine
Phasenstellung die Bogen vor- oder nacheilend den Transportbändern
zugeführt, indem der Arbeitstakt des Saugkopfes und damit
der Transportsauger gegenüber dem Arbeitstakt des Bändertischs
vor- oder nacheilend verstellt wird.
Auch bei dieser Lösung werden die Gründe für die Zuführungenauigkeiten
nicht ursächlich beseitigt, wobei sich die Übergabebedingungen
und damit die Zuführgenauigkeit immer dann verschlechtern,
wenn der Arbeitstakt des Saugkopfes gegenüber dem Arbeitstakt des
Bändertischs vor- oder nacheilend verstellt wird.
Außerdem ist es nachteilig, daß die Bewegungen und damit Beschleunigungen
nicht lediglich in Abhängigkeit von den geometrischen
Gegebenheiten (Transportsaugerweg, Bändertischlänge und Taktlänge
der zu realisierenden Arbeitsaufgabe), sondern unter zusätzlicher
Berücksichtigung des sinoidalen Geschwindigkeitsverlaufs der Transportbänder
gewählt werden können, so daß eine Optimierung der Beschleunigungs-
und Geschwindigkeitsverläufe der Arbeitsorgane
nicht möglich ist.From EP 644 139 B1 a generic sheet feeder unit is known in which the conveyor belts are driven approximately sinusoidally in such a way that the sheets are transferred from the suction devices to the conveyor belts at about the time of the lowest belt speed. Accordingly, the sheets conveyed by the conveyor belts are applied to the front marks with the lowest conveying speed. If the sheet arrives at the front marks too early or too late, the sheets are fed ahead or behind the conveyor belts by a phase position, by adjusting the working cycle of the suction head and thus the transport suction device in advance or lagging compared to the working cycle of the belt table.
In this solution, too, the reasons for the inaccuracies in the feed are not eliminated, whereby the transfer conditions and thus the feed accuracy always deteriorate if the work cycle of the suction head is adjusted ahead or behind the work cycle of the belt table.
In addition, it is disadvantageous that the movements and thus accelerations can be selected not only depending on the geometric conditions (transport suction path, belt table length and cycle length of the work to be carried out), but also taking into account the sinusoidal speed curve of the conveyor belts, so that an optimization of the acceleration - and speed profiles of the work organs is not possible.
Aufgabe der Erfindung ist es, ein Verfahren und eine Vorrichtung zum Zuführen von Bogen zu schaffen, die unabhängig von der Beschaffenheit der zur Verarbeitung gelangenden Bedruckstoffe und der Maschinengeschwindigkeit eine hohe Zuführgenauigkeit und einen optimalen Beschleunigungsverlauf sichern.The object of the invention is a method and an apparatus to create sheets that are independent of texture the substrates to be processed and the machine speed a high feed accuracy and one ensure optimal acceleration.
Erfindungsgemäß wird die Aufgabe durch die Merkmale der Ansprüche
1 und 4 gelöst.According to the invention the object is achieved by the features of the
Durch die erfindungsgemäße Lösung ist es möglich, innerhalb eines Arbeitstaktes die Bewegungen der Transportbänder des Bändertischs und die der Transportsauger und damit die Beschleunigungen zu optimieren sowie die Geschwindigkeitsprofile der Transportbänder und der Transportsauger so auszubilden, daß sie einen gemeinsamen Bereich aufweisen, in dem die Beschleunigungen von Null verschieden sind und in dem die Bogenübergabe erfolgt, der sich über einen großen Bereich des Drehwinkels einer nachgeordneten bogenverarbeitenden Maschine erstreckt. Damit wird gesichert, daß die transportierten Bogen, unabhängig von der Oberflächenbeschaffenheit und der Materialstärke, ohne Schlupf von den Transportbändern übernommen werden und damit die Zuführgenauigkeit der Bogen an die Vordermarken optimal ist.The solution according to the invention makes it possible within a Work cycle the movements of the conveyor belts of the conveyor table and to optimize those of the transport vacuum and thus the accelerations as well as the speed profiles of the conveyor belts and the vacuum cleaner so that they have a common Have area in which the accelerations differ from zero and in which the sheet transfer takes place, which is via a large range of rotation angle of a subordinate sheet processing Machine stretches. This ensures that the transported sheets, regardless of the surface condition and the material thickness, without slippage from the conveyor belts be taken over and thus the feeding accuracy of the sheets to the front brands is optimal.
Nachfolgend wird die Erfindung an einem Ausführungsbeispiel näher erläutert. In den zugehörigen Zeichnungen zeigen
- Fig. 1
- eine Darstellung der Vorrichtung zum Zuführen von Bogen in der Seitenansicht,
- Fig. 2
- ein Geschwindigkeitsschaubild der Transportsauger und der Transportbänder,
- Fig. 3
- eine schematische Darstellung des Antriebes der Vorrichtung nach Fig. 1.
- Fig. 1
- 2 shows a representation of the device for feeding sheets in a side view,
- Fig. 2
- a speed diagram of the transport suction devices and the conveyor belts,
- Fig. 3
- 2 shows a schematic representation of the drive of the device according to FIG. 1.
Die in Figur 1 dargestellte Vorrichtung zum Zuführen von Bogen
besteht aus einem Bogenanleger 1, einem Bändertisch 2, einem Anlegtisch
3 und dem Anlegtisch 3 zugeordnete Vordermarken 4 sowie
Seitenmarken 5. Der Bogenanleger 1 weist einen Saugkopf 6 mit
Trennsaugern 7 und Transportsaugern 8 auf. Im Bogenanleger 1 ist
ein aus Bogen 9 bestehender Bogenstapel 10 vorgesehen. Der in Bogenförderrichtung
11 dem Bogenanleger 1 nachgeordnete Bändertisch
2 weist ein Tischblech 17 sowie sich quer zur Bogenförderrichtung
11 erstreckende Bänderwalzen 12, 13 auf. Die Bänderwalzen 12, 13
werden von mindestens zwei im Abstand zueinander angeordneten
Transportbändern 14 umschlungen, die durch Umlenkrollen 15 und
Spannrollen 16 geführt werden. Die Transportbänder 14 werden z.B.
mittels der Bänderwalze 12 oder 13 in Umlaufrichtung 18 angetrieben.
Dazu ist im Ausführungsbeispiel der Bänderwalze 12 ein Antrieb
22 zugeordnet, der als Motor 30 ausgebildet ist. Mit der
dem Bogenanleger 1 zugewandten Bänderwalze 12 korrespondiert eine
Taktwalze 19, die im Maschinentakt gegen die Bänderwalze 12 gesteuert
wird.
Der sich dem Bändertisch 2 anschließende Anlegtisch 3 weist beidseitig
eine Seitenmarke 5 sowie über die Breite verteilt Vordermarken
4 auf, die periodisch durch nicht dargestellte Mittel unter
die Ebene des Anlegtischs 3 geschwenkt werden. Dem Anlegtisch
3 schließt sich eine Schwinganlage 20 und dieser nachgeordnet die
Anlegtrommel 21 eines nicht dargestellten Druckwerks an.
Durch die eine Hubbewegung ausführenden Trennsauger 7 werden die
Bogen 9 taktweise vom Bogenstapel 10 vereinzelt und an die Transportsauger
8 übergeben. Die Transportsauger 8 erfassen den jeweils
vereinzelten Bogen 9 im hinteren Bereich und transportieren
diesen in Transportrichtung 11, bis das freie Ende in den Bereich
zwischen der Bänderwalze 12 und der abgeschwenkten Taktwalze 19
gelangt ist. Nachfolgend wird die Taktwalze 19 durch nicht dargestellte
Mittel gegen die Bänderwalze 12 geführt, damit der Bogen
9 erfaßt und dieser nachfolgend von den Transportsaugern 8
freigegeben, die ihrerseits zurückgeführt werden zum Erfassen eines
Folgebogens.
Zum Antreiben der Transportsauger 8 ist diesen ein Antrieb 23 zugeordnet,
der als Motor 31 ausgebildet sein kann.
Der Motor 30 und der Motor 31 sind mit einer Steuereinrichtung 24
verbunden, die unter Einbeziehung von Taktsignalen der nachgeordneten
Druckmaschine, initiiert mittels eines der Anlegtrommel 21
zugeordneten Inkrementalgebers 25, mit taktgebundenen Geschwindigkeitsprofilen
angesteuert werden. Die Geschwindigkeitsprofile
sowohl für den die Bänderwalze 12 treibenden Motor 30 als auch die
für den den Transportsaugern 8 zugeordneten Motor 31 sind innerhalb
eines Taktes unabhängig voneinander frei wählbar. Sie weisen
jedoch in einem Geschwindigkeitsbereich, der eine von Null verschiedene
Beschleunigung besitzt, Übereinstimmung auf.The device for feeding sheets shown in FIG. 1 consists of a
The feed table 3 adjoining the belt table 2 has a side mark 5 on both sides and front marks 4 distributed over the width, which are periodically pivoted below the level of the feed table 3 by means not shown. The feed table 3 is followed by a vibrating
Due to the separating suction device 7 carrying out a lifting movement, the sheets 9 are separated from the
A
The
In Figur 2 ist ein mögliches Geschwindigkeitsprofil 26, mit dem
der die Transportbänder 14 antreibende Motor 30 angesteuert werden
kann, und ein mögliches Geschwindigkeitsprofil 27, mit dem
der die Transportsauger 8 antreibende Motor 31 angesteuert werden
kann, über einen Drehwinkel ϕ = 180° der Druckmaschine dargestellt.
Die Geschwindigkeitsprofile 26, 27 weisen offensichtlich
unterschiedliche Verläufe auf, stimmen jedoch in einem Bereich
28 überein, wobei in diesem Bereich 28 die Beschleunigungen
von Null verschieden sind. In diesem Bereich 28, der sich im Ausführungsbeispiel
über einen Drehwinkel ϕ von annähernd 50° erstreckt,
erfolgt die Übergabe der Bogen 9 von den Transportsaugern
8 an die Transportbänder 14 des Bändertischs 2, indem die
Taktwalze 19 den jeweils von den Transportsaugern 8 geführte Bogen
9 in Wirkverbindung mit Bändern 14 gebracht und nachfolgend
von den Transportsaugern 8 freigegeben wird. Durch die Maßnahme,
die Übergabe der Bogen 9 in einen übereinstimmenden Bereich 28
der Geschwindigkeitsprofile 26, 27, in dem die Beschleunigungen
von Null verschieden sind, zu verwirklichen, ist es möglich, diesen
Bereich 28 so auszubilden, daß er sich über einen großen Abschnitt
des Drehwinkels ϕ erstreckt. Damit wird erreicht, daß die
Übergabe der Bogen 9, unabhängig von der Oberflächenbeschaffenheit
oder der Materialstärke der zur Verarbeitung gelangenden Bedruckstoffe
immer dann erfolgt, wenn die als Bogentransportorgane
vorgesehenen Transportsauger 8 und Transportbänder 14 gleiche Geschwindigkeiten
aufweisen. FIG. 2 shows a
- 11
- Bogenanlegersheet feeder
- 22
- Bändertischbelt table
- 33
- Anlegtischfeed table
- 44
- Vordermarkenfront lays
- 55
- Seitenmarkepage brand
- 66
- Saugkopfsuction head
- 77
- Trennsaugersuction separator
- 88th
- Transportsaugertransport sucker
- 99
- Bogenarc
- 1010
- Bogenstapelsheet pile
- 1111
- BogenförderrichtungSheet conveying direction
- 1212
- Bänderwalzebands roll
- 1313
- Bänderwalzebands roll
- 1414
- Transportbänderconveyor belts
- 1515
- Umlenkrolleidler pulley
- 1616
- Spannrolleidler
- 1717
- Tischblechtable sheet
- 1818
- Umlaufrichtungdirection of rotation
- 1919
- Taktwalzetiming roller
- 2020
- Schwinganlageswing feeder
- 2121
- Anlegtrommelfeed drum
- 2222
- Antriebdrive
- 2323
- Antriebdrive
- 2424
- Steuereinrichtungcontrol device
- 2525
- Inkrementalgeberincremental
- 2626
- Geschwindigkeitsprofilvelocity profile
- 2727
- Geschwindigkeitsprofilvelocity profile
- 2828
- BereichArea
- 29 3029 30
- Motorengine
- 3131
- Motorengine
- ϕφ
- Drehwinkelangle of rotation
- VV
- Geschwindigkeitspeed
Claims (7)
- Method of feeding sheets (9), in whichcharacterised in thatthe sheets (9) are cyclically singled by means of separating suckers (7) arranged at a suction head (6),and are transported by transport suckers (8) in sheet conveying direction (11) to a belt table (2) comprising at least two transport belts (14) arranged at a spacing from one another and guided by way of at least two belt rollers (12, 13),the sheets (9) are taken over by the transport belts (14) of the belt table (9) and transported against front marks (4) as well as subsequently fed to a downstream sheet processing machine andthe transport belts (14) are driven successively within a working cycle at a desired speed profile (27),the transport suckers (8) are driven successively within a working cycle at a desired speed profile (26) andthe speed profiles (26, 27) correspond in a region (28).
- Method of feeding sheets (9) according to claim 1, with a common region (28) of the speed profiles (26, 27) on which the accelerations are different from zero.
- Method of feeding sheets (9) according to claim 1, with speed profiles (26, 27) which have a common range (28) in which the sheets (9) are transferred from the transport suckers (8) to the transport belts (14).
- Device for feeding sheets (9), comprisingcharacterised in thatseparating suckers (7) arranged at a suction head (6) for cyclic singling of the sheets (9) andtransport suckers (8) for transporting the sheets (9) in sheet conveying direction (11) to a belt table (2), whereinthe belt table (2) comprises at least two transport belts (14) arranged at a spacing and guided over at least two belt rollers (13),the transport belts (14) convey the sheets (9) against front marks (4) anddrives (30, 31) are associated with one of the belt rollers (12, 13) and the transport suckers (8),the drives (30, 31) are controllable by way of a control device (24) with respective speed profiles (26, 27) formed as desired within a working cycle andthe speed profiles (26, 27) have a common region (28).
- Device for feeding sheets (9) according to claim 4, in which one of the belt rollers (12, 13) is associated with a motor (30) driving the transport belts and the transport suckers (8) are associated with a motor (31) driving these.
- Device for feeding sheets (9) according to claim 4, with speed profiles (26 ,27) having a common region (28) in which the accelerations are different from zero.
- Device for feeding sheets (9) according to claim 4, with a cycling roller (19) guiding the sheet or sheets (9) against the belt roller (12) in the common region (28) of the speed profiles (26, 27).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19755518 | 1997-12-13 | ||
| DE19755518A DE19755518C2 (en) | 1997-12-13 | 1997-12-13 | Method and device for feeding sheets |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0922659A1 EP0922659A1 (en) | 1999-06-16 |
| EP0922659B1 true EP0922659B1 (en) | 2002-11-06 |
Family
ID=7851850
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP98122913A Expired - Lifetime EP0922659B1 (en) | 1997-12-13 | 1998-12-02 | Method and device for feeding sheets |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP0922659B1 (en) |
| DE (2) | DE19755518C2 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10021211B4 (en) * | 2000-04-29 | 2008-11-20 | Koenig & Bauer Aktiengesellschaft | Device for feeding sheets |
| DE10137536A1 (en) * | 2001-08-01 | 2003-02-13 | Heidelberger Druckmasch Ag | Method for conveying sheets in a feeder of a sheet-processing printing machine |
| EP1528021A1 (en) * | 2003-11-03 | 2005-05-04 | Bobst S.A. | Feeder of a sheet-processing machine |
| DE102008013101B4 (en) | 2007-03-23 | 2022-08-11 | Heidelberger Druckmaschinen Ag | Sheet feeder with variable shingle length and sheet arrival control |
| DE102007015341A1 (en) * | 2007-03-30 | 2008-10-02 | Koenig & Bauer Aktiengesellschaft | Sheet feeder of a sheet-fed printing machine |
| CN108275483A (en) * | 2018-04-02 | 2018-07-13 | 华源包装（咸宁）有限公司 | A kind of Qu Pian mechanisms on metal sheet printing production line |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2220353C2 (en) * | 1972-04-26 | 1981-06-11 | Heidelberger Druckmaschinen Ag, 6900 Heidelberg | Suction head on sheet feeders |
| DE4331610A1 (en) * | 1993-09-17 | 1995-03-23 | Roland Man Druckmasch | Sheet feeder unit |
| JP3478629B2 (en) * | 1994-01-27 | 2003-12-15 | 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 | Apparatus for conveying a sheet in a sheet feeding area of a sheet processing machine and speed control method of electric motor |
| DE19509548C2 (en) * | 1995-03-16 | 1999-06-10 | Roland Man Druckmasch | Sheet feeder unit |
-
1997
- 1997-12-13 DE DE19755518A patent/DE19755518C2/en not_active Expired - Fee Related
-
1998
- 1998-12-02 DE DE59806175T patent/DE59806175D1/en not_active Expired - Lifetime
- 1998-12-02 EP EP98122913A patent/EP0922659B1/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| DE59806175D1 (en) | 2002-12-12 |
| DE19755518A1 (en) | 1999-06-24 |
| DE19755518C2 (en) | 2000-09-21 |
| EP0922659A1 (en) | 1999-06-16 |
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