WO1998018703A1 - Device for feeding sheets to a conveyor drum in a printing press - Google Patents

Device for feeding sheets to a conveyor drum in a printing press Download PDF

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Publication number
WO1998018703A1
WO1998018703A1 PCT/DE1997/002521 DE9702521W WO9818703A1 WO 1998018703 A1 WO1998018703 A1 WO 1998018703A1 DE 9702521 W DE9702521 W DE 9702521W WO 9818703 A1 WO9818703 A1 WO 9818703A1
Authority
WO
WIPO (PCT)
Prior art keywords
sheet
gripper
transport element
feeding sheets
feed
Prior art date
Application number
PCT/DE1997/002521
Other languages
German (de)
French (fr)
Inventor
Arndt Jentzsch
Reinhardt Nerger
Victor Hefftler
Original Assignee
Koenig & Bauer Aktiengesellschaft
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 Koenig & Bauer Aktiengesellschaft filed Critical Koenig & Bauer Aktiengesellschaft
Priority to EP97949860A priority Critical patent/EP0939739B1/en
Priority to DE59703696T priority patent/DE59703696D1/en
Publication of WO1998018703A1 publication Critical patent/WO1998018703A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F21/00—Devices for conveying sheets through printing apparatus or machines
    • B41F21/04—Grippers
    • B41F21/05—In-feed grippers
    • 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
    • B65H3/0833—Suction grippers separating from the top of pile and acting on the front part of the articles relatively to the final separating direction
    • 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
    • B65H5/08—Feeding articles separated from piles; Feeding articles to machines by grippers, e.g. suction grippers
    • B65H5/10—Reciprocating or oscillating grippers, e.g. suction or gripper tables

Definitions

  • the invention relates to a device for feeding sheets from a stack of feed sheets to a sheet transport drum of a printing press.
  • the top sheet of a stack of sheets is gripped by vertical suction devices placed on the sheet / transported vertically / transferred to transport suction devices and transported in the direction of a feed table (DE 36 34 659).
  • the over the feed table e.g. Sheets transported with belts up to the feed marks are taken over by a pre-gripper equipped with a row of grippers / accelerated to machine speed and transferred to a sheet guide cylinder.
  • This arrangement requires a long feed table and a pivotal pivot point that is shifted in the direction of the sheet feeder and thus a large installation space. Furthermore, there is a short acceleration path of the pre-gripper and correspondingly unfavorable dynamic conditions.
  • the object of the invention is to shorten the installation space / distance between the feeder sheet stack / sheet transport drum / while simultaneously increasing the acceleration path of the pre-gripper.
  • the object is achieved by the characterizing part of the first claim.
  • Fig. 1 device for feeding sheets
  • FIG. 2 movement sequence transport element with integrated device for vertical movement
  • Fig. 3 sequence of movements transport element and separate device for vertical movement.
  • the uppermost sheet 2 lying on the feeder sheet stack 1 forms a first level 3 / feeder sheet stack level and the sheet 2 has a gripper edge 4 in the front edge area.
  • the gripper edge 4 usually extends from the front edge of the sheet measured in the direction of the sheet extension over a path of 3 to 5 mm.
  • the sheet 2 is gripped exclusively at this gripper edge 4 and transported from the stack of feed sheets 1 to a sheet transport drum 13.
  • the feeder sheet stack 1 is on the machine side, i.e. limited in the sheet running direction 10 / by a fixed stop 9 / which extends over the first level 3.
  • a transport element 8 designed as a suction oscillator is mounted in an oscillation point 7.
  • the transport element 8 is coupled to an oscillating drive (not shown) / for example a known curved drive.
  • the oscillation angle o ⁇ _ of the transport element 8 is less than 25 degrees / preferably 10 degrees.
  • the transport element 8 is equipped with lifting suction devices 15 which extend transversely to the sheet running direction 10 and form a suction strip.
  • a device for vertical movement 11 is integrated in the transport element 8.
  • the device for vertical movement 11 has the task of detecting the uppermost sheet 2 at the gripper edge 4 (sheet detection point 19) / separating it from the feeder sheet stack 1 and lifting it to a second level 6 which corresponds to the oscillating path of the transport element 8.
  • the suction cups 15 of the transport element 8 are multi-stage fensauger / preferably as a three-stage vacuum cleaner / designed.
  • the transport element 8 is designed / equipped with lifting suction devices 15 / preferably as a two-step suction device and the device for vertical movement 5 / in the form of a multi-step suction device (three-step suction device) / is arranged upstream of the transport element 8.
  • the sheet transfer from the device for vertical movement 5, which is arranged in a stationary manner above the leading edge area of the sheet, to the transport element 8 takes place in the second plane 6 at the sheet transfer point 21.
  • a feed table 12 Arranged in the sheet running direction 10 in front of the feeder sheet stack 1 is a feed table 12 which adjoins the stop 9 and rises in the sheet running direction.
  • the feed table level / the second level 6 and the oscillating path of the transport element are almost identical.
  • feed table 12 On the side facing the sheet transport drum 13, the feed table 12 is delimited by feed marks 16 extending transversely to the sheet running direction 10. These contact marks 16 are pivotable or lowerable and can be controlled from the sheet path.
  • the sheet 2 is detected by means of the device for vertical movement 11, which is designed as a three-stage suction device / which is integrated in the transport element 8 / in the first level 3 at the sheet detection point 19 / raised to the second level 6 / by the oscillating movement of the transport element 8 to transported to the feed marks 16 and released there to the sheet release point 17.
  • the device for vertical movement 11 which is designed as a three-stage suction device / which is integrated in the transport element 8 / in the first level 3 at the sheet detection point 19 / raised to the second level 6 / by the oscillating movement of the transport element 8 to transported to the feed marks 16 and released there to the sheet release point 17.
  • the three-stage suction device is then raised to the third level 18 / the transport element 8 swings back into its starting position over the front edge region of the uppermost sheet 2 and the three-stage suction device is lowered to the first level 3 (FIG. 2).
  • the sheet 2 is raised to the second level 6 by means of the device for vertical movement 11, which is designed as a three-stage suction device and is arranged upstream of the transport element 8 / in the first level 3 at the sheet detection point 19, and to the sheet transfer point 21 / above the sheet detection point 19 lies in the second level 6 to the lifting suction device of the transport element 8, which is designed as a two-stage suction device.
  • the three-stage suction device of the device for vertical movement 11 is then raised to a third level 18 and then lowered again to the first level 3. Due to the swinging movement of the transport element 8, the sheet 2 taken over is transported to the application marks 16 and released there to the sheet entry point 17. Thereafter, the lifting suction device 15 of the transport element 8, which is designed as a two-step suction device, is raised to a third level 18 / the transport element 8 swings back into its starting position and the two-step suction device is lowered to the second level 6 (FIG. 3).
  • the suction surface of the suction lifter 15 is arranged parallel or almost parallel to the plane of the feed table 12.
  • a pre-gripper 22 is arranged below the plane of the feed table 12.
  • the pre-gripper 22 is also designed as a suction oscillator and can be pivoted about a pivot point 5.
  • the drive of the pre-gripper / for example by means of a generally known curve drive is not shown.
  • the pivot point 5 of the pre-gripper / the sheet release point 20 and the pivot point 7 of the transport element 8 lie on a straight line or almost on a straight line.
  • the sheet transfer from the transport element 8 to the pre-gripper 22 and from the pre-gripper 22 to the sheet transport drum 13 takes place tangentially or almost tangentially.
  • the beginning of the oscillation path of the transport element 8 is also tangential or almost tangential to a parallel level of the first level (3) / the feeder sheet stack level.
  • the sheet 2 After the sheet 2 has been released by the transport element 8 at the sheet release point 20, the sheet 2 is aligned by means of alignment means (not shown) on the feed marks 16 arranged transversely to the sheet conveying direction and on side marks (not shown) arranged laterally on the feed table. After the feed marks have been controlled from the sheet path, the sheet is accelerated to machine speed by the pre-gripper 22 and transferred to the grippers of the sheet transport drum 13.
  • the pivot point 5 of the pre-gripper 22 is moved by the arrangement according to the invention - feed table rising in the sheet running direction, transport element designed as a suction transducer / pre-gripper designed as a suction transducer and connecting straight line pivot point 7 / sheet release point 17 / swing point 7 - in the sheet running direction to the sheet transport drum / which has greatly shortened the installation space and a longer acceleration path of the bow was achieved.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)

Abstract

The invention relates to a device for feeding sheets (2) from a feed sheet pile (1) to a feed sheet conveyor drum (13) of a printing machine. The invention seeks to reduce the overall dimension, i.e. the feed sheet pile/feed sheet conveyor drum spacing, while at the same time increasing the travel acceleration of the pre-gripper (22). According to the invention, this is performed in that an ascending feed table (12) extends directly to a stop (9) limiting the pile (1), before the sheet pile (1) in the travelling direction of the sheets (2), a conveying element (8) configured as lever arm conveys the sheets (2) up to the lay marks (16) of the feed table (12), said conveying element being on the upper part of the front edge of the sheet stacked in the feed pile, and a pre-gripper (22) configured as a lever arm conveys the sheet (2) from the lay marks (16) to the sheet conveyor drum (13), said pre-gripper being underneath the plane of the feed table (12). The rotational point (7) of the conveyor element (8), the sheet release/transfer point from the conveyor element (8) to the pre-gripper (22) and the pivoting point (5) of the pre-gripper (22) lie in a straight or nearly straight line.

Description

EINRICHTUNG ZUM ZUFÜHREN VON BOGEN ZU EINER BOGENTRANSPORTTROMMEL EINER DRUCKMASCHINEDEVICE FOR FEEDING SHEETS TO A SHEET TRANSPORT DRUM OF A PRINTING MACHINE
Die Erfindung betrifft eine Einrichtung zum Zuführen von Bogen von einem Anlegerbogenstapel zu einer Bogentransporttrommel einer Druckmaschine.The invention relates to a device for feeding sheets from a stack of feed sheets to a sheet transport drum of a printing press.
In Bogendruckmaschinen wird der oberste Bogen eines Bogenstapels durch auf den Bogen aufsetzende Hubsauger erfaßt/ vertikal transportiert/ an Transportsauger übergeben und in Richtung zu einem Anlegtisch transportiert (DE 36 34 659).In sheet-fed printing machines, the top sheet of a stack of sheets is gripped by vertical suction devices placed on the sheet / transported vertically / transferred to transport suction devices and transported in the direction of a feed table (DE 36 34 659).
Der über den Anlegtisch z.B. mit Bändern bis zu den Anlegmarken transportierte Bogen wird von einem mit einer Greiferreihe ausgestatteten Vorgreifer übernommen/ auf Maschinengeschwindigkeit beschleunigt und an einen Bogenführungszylinder übergeben. Diese Anordnung erfordert einen langen Anlegtisch und einen in Richtung Bogenanleger verschobenen Vorgreiferschwenkpunkt und damit einen großen Bauraum. Des weiteren ergibt sich ein geringer Beschleunigungsweg des Vorgreifers und entsprechend ungünstige dynamische Verhältnisse.The over the feed table e.g. Sheets transported with belts up to the feed marks are taken over by a pre-gripper equipped with a row of grippers / accelerated to machine speed and transferred to a sheet guide cylinder. This arrangement requires a long feed table and a pivotal pivot point that is shifted in the direction of the sheet feeder and thus a large installation space. Furthermore, there is a short acceleration path of the pre-gripper and correspondingly unfavorable dynamic conditions.
Aufgabe der Erfindung ist eine Verkürzung des Bauraumes / Abstand Anlegerbogenstapel/Bogentransporttrommel / bei gleichzeitiger Vergrößerung des Beschleunigungsweges des Vorgreifers.The object of the invention is to shorten the installation space / distance between the feeder sheet stack / sheet transport drum / while simultaneously increasing the acceleration path of the pre-gripper.
Erfindungsgemäß wird die Aufgabe durch das Kennzeichen des ersten Anspruchs gelöst.According to the invention the object is achieved by the characterizing part of the first claim.
Nachfolgend wird die Erfindung an einem Ausführungsbeispiel näher erläutert .The invention is explained in more detail below using an exemplary embodiment.
In der Zeichnung zeigtIn the drawing shows
Fig. 1 Einrichtung zum Zuführen von Bogen;Fig. 1 device for feeding sheets;
Fig. 2 Bewegungsablauf Transportelement mit integrierter Einrichtung zur Vertikalbewegung; Fig. 3 Bewegungsablauf Transportelement und separater Einrichtung zur Vertikalbewegung.Fig. 2 movement sequence transport element with integrated device for vertical movement; Fig. 3 sequence of movements transport element and separate device for vertical movement.
Der auf dem Anlegerbogenstapel 1 aufliegende oberste Bogen 2 bildet eine erste Ebene 3/Anlegerbogenstapelebene und der Bogen 2 weist im Vorderkantenbereich einen Greiferrand 4 auf. Der Greiferrand 4 erstreckt sich üblicherweise von der Bogenvorderkante in Bogenerstreckungsrichtung gemessen über einen Weg von 3 bis 5 mm. Der Bogen 2 wird ausschließlich an diesem Greiferrand 4 erfaßt und vom Anlegerbogenstapel 1 bis zu einer Bogentransport- trommel 13 transportiert.The uppermost sheet 2 lying on the feeder sheet stack 1 forms a first level 3 / feeder sheet stack level and the sheet 2 has a gripper edge 4 in the front edge area. The gripper edge 4 usually extends from the front edge of the sheet measured in the direction of the sheet extension over a path of 3 to 5 mm. The sheet 2 is gripped exclusively at this gripper edge 4 and transported from the stack of feed sheets 1 to a sheet transport drum 13.
Der Anlegerbogenstapel 1 ist maschinenseitig , d.h. in Bogenlaufrichtung 10/ durch einen fest angeordneten Anschlag 9 begrenzt/ der sich bis über die erste Ebene 3 erstreckt.The feeder sheet stack 1 is on the machine side, i.e. limited in the sheet running direction 10 / by a fixed stop 9 / which extends over the first level 3.
Oberhalb des Vorderkantenbereiches des jeweils obersten Bogens 2 des Anlegerbogenstapels 1 ist ein als Saugerschwinger ausgebildetes Transportelement 8 in einem Schwingpunkt 7 gelagert. Dazu ist das Transportelement 8 mit einem nicht dargestellten Schwingantrieb/ beispielsweise einem bekannten Kurventrieb/ gekoppelt. Der Schwingwinkel o<_ des Transportelementes 8 liegt unter 25 Grad/ vorzugsweise bei 10 Grad.Above the front edge area of the uppermost sheet 2 of the feeder sheet stack 1, a transport element 8 designed as a suction oscillator is mounted in an oscillation point 7. For this purpose, the transport element 8 is coupled to an oscillating drive (not shown) / for example a known curved drive. The oscillation angle o <_ of the transport element 8 is less than 25 degrees / preferably 10 degrees.
Des weiteren ist das Transportelement 8 mit sich quer zur Bogenlaufrichtung 10 erstreckenden Hubsaugern 15 bestückt, die eine Saugerleiste bilden.Furthermore, the transport element 8 is equipped with lifting suction devices 15 which extend transversely to the sheet running direction 10 and form a suction strip.
Nach einer ersten Variante ist in das Transportelement 8 eine Einrichtung zur Vertikalbewegung 11 integriert. Die Einrichtung zur Vertikalbewegung 11 hat die Aufgabe den obersten Bogen 2 am Greiferrand 4 zu erfassen ( Bogenerfassungspunkt 19)/ vom Anlegerbogenstapel 1 zu trennen und auf eine zweite Ebene 6, die der Schwingbahn des Transportelementes 8 entspricht/ anzuheben. Dazu sind die Hubsauger 15 des Transportelementes 8 als Mehrstu- fensauger/ vorzugsweise als Dreistufensauger/ ausgebildet.According to a first variant, a device for vertical movement 11 is integrated in the transport element 8. The device for vertical movement 11 has the task of detecting the uppermost sheet 2 at the gripper edge 4 (sheet detection point 19) / separating it from the feeder sheet stack 1 and lifting it to a second level 6 which corresponds to the oscillating path of the transport element 8. For this purpose, the suction cups 15 of the transport element 8 are multi-stage fensauger / preferably as a three-stage vacuum cleaner / designed.
Nach einer zweiten Variante ist das Transportelement 8 mit Hubsaugern 15/ vorzugsweise als Zweistufensauger ausgebildet/ bestückt und dem Transportelement 8 ist die Einrichtung zur Vertikalbewegung 5/ in der Ausbildung als Mehrstufensauger (Dreistufensauger)/ vorgeordnet. Die Bogenübergabe von der ortsfest oberhalb des Vorderkantenbereiches des Bogens angeordneten Einrichtung zur Vertikalbewegung 5 an das Transportelement 8 erfolgt in der zweiten Ebene 6 im Bogenübergabepunkt 21.According to a second variant, the transport element 8 is designed / equipped with lifting suction devices 15 / preferably as a two-step suction device and the device for vertical movement 5 / in the form of a multi-step suction device (three-step suction device) / is arranged upstream of the transport element 8. The sheet transfer from the device for vertical movement 5, which is arranged in a stationary manner above the leading edge area of the sheet, to the transport element 8 takes place in the second plane 6 at the sheet transfer point 21.
In Bogenlaufrichtung 10 vor dem Anlegerbogenstapel 1 ist ein sich an den Anschlag 9 anschließender in Bogenlaufrichtung ansteigender Anlegtisch 12 angeordnet. Die Anlegtischebene/ die zweite Ebene 6 und die Schwingbahn des Transportelementes sind dabei nahezu identisch.Arranged in the sheet running direction 10 in front of the feeder sheet stack 1 is a feed table 12 which adjoins the stop 9 and rises in the sheet running direction. The feed table level / the second level 6 and the oscillating path of the transport element are almost identical.
An der der Bogentransporttrommel 13 zugekehrten Seite ist der Anlegtisch 12 durch sich quer zur Bogenlaufrichtung 10 erstreckende Anlegmarken 16 begrenzt. Diese Anlegmarken 16 sind schwenkbar bzw. absenkbar angeordnet und können aus der Bogenbahn gesteuert werden.On the side facing the sheet transport drum 13, the feed table 12 is delimited by feed marks 16 extending transversely to the sheet running direction 10. These contact marks 16 are pivotable or lowerable and can be controlled from the sheet path.
Bei der ersten Variante wird der Bogen 2 mittels der als Dreistufensauger ausgebildeten Einrichtung zur Vertikalbewegung 11/ welche in das Transportelement 8 integriert ist/ in der ersten Ebene 3 im Bogenerfassungspunkt 19 erfaßt/ auf die zweite Ebene 6 angehoben/ durch die Schwingbewegung des Transportelementes 8 bis zu den Anlegmarken 16 transportiert und dort zum Bogenfrei- gabepunkt 17 freigegeben.In the first variant, the sheet 2 is detected by means of the device for vertical movement 11, which is designed as a three-stage suction device / which is integrated in the transport element 8 / in the first level 3 at the sheet detection point 19 / raised to the second level 6 / by the oscillating movement of the transport element 8 to transported to the feed marks 16 and released there to the sheet release point 17.
Danach wird der Dreistufensauger auf die dritte Ebene 18 angehoben/ das Transportelement 8 schwingt in seine Ausgangsstellung über den Vorderkantenbereich des obersten Bogens 2 zurück und der Dreistufensauger wird auf die erste Ebene 3 abgesenkt (Fig. 2). Bei der zweiten Variante wird der Bogen 2 mittels der als Dreistufensauger ausgebildeten Einrichtung zur Vertikalbewegung 11, welche dem Transportelement 8 vorgeordnet ist/ in der ersten Ebene 3 im Bogenerfassungspunkt 19 erfaßt/ auf die zweite Ebene 6 angehoben und zum Bogenübergabepunkt 21/ der oberhalb des Bogenerfassungspunktes 19 liegt, in der zweiten Ebene 6 an den als Zweistufensauger ausgebildeten Hubsauger des Transportelementes 8 übergeben. Danach wird der Dreistufensauger der Einrichtung zur Vertikalbewegung 11 auf eine dritte Ebene 18 angehoben und danach wieder auf die erste Ebene 3 abgesenkt. Durch die Schwingbewegung des Transportelementes 8 wird der übernommene Bogen 2 bis zu den Anlegmarken 16 transportiert und dort zum Bogenf eigabepunkt 17 freigegeben. Danach wird der als Zweistufensauger ausgebildete Hubsauger 15 des Transportelementes 8 auf eine dritte Ebene 18 angehoben/ das Transportelement 8 schwingt in seine Ausgangsstellung zurück und der Zweistufensauger wird auf die zweite Ebene 6 abgesenkt (Fig. 3).The three-stage suction device is then raised to the third level 18 / the transport element 8 swings back into its starting position over the front edge region of the uppermost sheet 2 and the three-stage suction device is lowered to the first level 3 (FIG. 2). In the second variant, the sheet 2 is raised to the second level 6 by means of the device for vertical movement 11, which is designed as a three-stage suction device and is arranged upstream of the transport element 8 / in the first level 3 at the sheet detection point 19, and to the sheet transfer point 21 / above the sheet detection point 19 lies in the second level 6 to the lifting suction device of the transport element 8, which is designed as a two-stage suction device. The three-stage suction device of the device for vertical movement 11 is then raised to a third level 18 and then lowered again to the first level 3. Due to the swinging movement of the transport element 8, the sheet 2 taken over is transported to the application marks 16 and released there to the sheet entry point 17. Thereafter, the lifting suction device 15 of the transport element 8, which is designed as a two-step suction device, is raised to a third level 18 / the transport element 8 swings back into its starting position and the two-step suction device is lowered to the second level 6 (FIG. 3).
Im Freigabepunkt 20 ist die Saugfläche des Hubsaugers 15 parallel oder nahezu parallel zur Ebene des Anlegtisches 12 angeordnet. Unterhalb der Ebene des Anlegtisches 12 ist ein Vorgreifer 22 angeordnet .At the release point 20, the suction surface of the suction lifter 15 is arranged parallel or almost parallel to the plane of the feed table 12. A pre-gripper 22 is arranged below the plane of the feed table 12.
Der Vorgreifer 22 ist ebenfalls als Saugerschwinger ausgebildet und um einen Schwenkpunkt 5 schwenkbar.The pre-gripper 22 is also designed as a suction oscillator and can be pivoted about a pivot point 5.
Der Antrieb des Vorgreifers/ beispielsweise mittels eines allgemein bekannten Kurventriebes ist nicht dargestellt. Der Schwenkpunkt 5 des Vorgreifers / der Bogenfreigabepunkt 20 und der Schwingpunkt 7 des Transportelementes 8 liegen auf einer Geraden oder nahezu auf einer Geraden. Die Bogenübergabe vom Transportelement 8 an den Vorgreifer 22 und vom Vorgreifer 22 an die Bogentransporttrommel 13 erfolgt jeweils tangential bzw. nahezu tangential. Auch der Anfang des Schwingweges des Transportelementes 8 liegt tangential oder nahezu tangential zu einer Parallel- ebene der ersten Ebene (3)/ der Anlegerbogenstapelebene . Nach der Freigabe des Bogens 2 durch das Transportelement 8 am Bogenfreigabepunkt 20 wird der Bogen 2 durch nicht dargestellte Ausrichtmittel an den quer zur Bogenförderrichtung angeordneten Anlegmarken 16 und an seitlich am Anlegtisch angeordneten nicht dargestellten Seitenmarken ausgerichtet. Nachdem die Anlegmarken aus der Bogenbahn gesteuert worden sind wird der Bogen durch den Vorgreifer 22 auf Maschinengeschwindigkeit beschleunigt und an die Greifer der Bogentransporttrommel 13 übergeben. Der Schwenkpunkt 5 des Vorgreifers 22 ist durch die erfindungsgemäße Anordnung - in Bogenlaufrichtung ansteigender Anlegtisch, als Saugerschwinger ausgebildetes Transportelement/ als Saugerschwinger ausgebildeter Vorgreifer und Verbindungsgerade Schwenkpunkt 7/ Bogenfreigabepunkt 17/ Schwingpunkt 7 - in Bogenlaufrichtung zur Bogentransporttrommel verschoben/ wodurch der Bauraum extrem verkürzt wurde und ein längerer Beschleunigungsweg des Bogens erreicht wurde. The drive of the pre-gripper / for example by means of a generally known curve drive is not shown. The pivot point 5 of the pre-gripper / the sheet release point 20 and the pivot point 7 of the transport element 8 lie on a straight line or almost on a straight line. The sheet transfer from the transport element 8 to the pre-gripper 22 and from the pre-gripper 22 to the sheet transport drum 13 takes place tangentially or almost tangentially. The beginning of the oscillation path of the transport element 8 is also tangential or almost tangential to a parallel level of the first level (3) / the feeder sheet stack level. After the sheet 2 has been released by the transport element 8 at the sheet release point 20, the sheet 2 is aligned by means of alignment means (not shown) on the feed marks 16 arranged transversely to the sheet conveying direction and on side marks (not shown) arranged laterally on the feed table. After the feed marks have been controlled from the sheet path, the sheet is accelerated to machine speed by the pre-gripper 22 and transferred to the grippers of the sheet transport drum 13. The pivot point 5 of the pre-gripper 22 is moved by the arrangement according to the invention - feed table rising in the sheet running direction, transport element designed as a suction transducer / pre-gripper designed as a suction transducer and connecting straight line pivot point 7 / sheet release point 17 / swing point 7 - in the sheet running direction to the sheet transport drum / which has greatly shortened the installation space and a longer acceleration path of the bow was achieved.
BezugszeichenaufstellungREFERENCE NUMBERS
1 Anlegerbogenstapel1 stack of feeder sheets
2 Bogen2 sheets
3 erste Ebene3 first level
4 Greiferrand4 gripper edge
5 Schwenkpunkt5 pivot point
6 zweite Ebene6 second level
7 Schwingpunkt7 swing point
8 Transportelement8 transport element
9 Anschlag9 stop
10 Bogenlauf ichtung10 sheet travel direction
11 Einrichtung zur Vertikalbewegung11 device for vertical movement
12 Anlegtisch12 feed table
13 Bogentransporttrommel 1413 sheet transport drum 14
15 Hubsauger/Mehrstufensauger15 lifting vacuum / multi-stage vacuum
16 Anlegmarken16 landing marks
17 Freigabepunkt17 release point
18 dritte Ebene18 third level
19 Bogenerfassungspunkt19 arc detection point
20 Bogenfreigabepunkt20 sheet release point
21 Bogenübergabepunkt21 sheet transfer point
22 Vorgreifer22 pre-grippers
23 Gerade23 straight
o Schwingwinkel o Swing angle

Claims

Patentansprüche claims
1. Einrichtung zum Zuführen von Bogen von einem Anlegerbogenstapel zu einer Bogentransporttrommel einer Druckmaschine/ dadurch gekennzeichnet/ daß in Bogenlaufrichtung (10) vor dem Anlegerbogenstapel (1) ein sich unmittelbar an einen stapelbegrenzenden Anschlag (9) anschließender ansteigender Anlegtisch (12)/ oberhalb des Vorderkantenbereiches des auf dem Anlegerbogenstapel (1) aufliegenden Bogens (2) ein den Bogen bis zu Anlegmarken (16) des Anlegtisches transportierendes/ als Schwinger ausgebildetes Transportelement (8), und unterhalb der Ebene des Anlegtisches ein den Bogen von den Anlegmarken zu der Bogentransporttrommel (13) transportierender/ als Schwinger ausgebildeter Vorgreifer (22) angeordnet und der Schwingpunkt (7) des Transportelementes (8), der Bogen- freigabepunkt ( 20) /Übergabepunkt des Bogens (2) vom Transportelement (8) zum Vorgreifer und der Schwenkpunkt des Vorgreifers (22) auf der Geraden (23) oder nahezu auf einer Geraden liegen.1. Device for feeding sheets from a feeder sheet stack to a sheet transport drum of a printing machine / characterized in that in the sheet running direction (10) in front of the feeder sheet stack (1) a rising feed table (12) immediately above a stack-limiting stop (9) / above the Leading edge region of the sheet (2) resting on the feeder sheet stack (1), a transport element (8) which transports the sheet up to feed marks (16) of the feed table / is designed as a vibrator, and below the plane of the feed table, a sheet from the feed marks to the sheet transport drum ( 13) transporting / designed as a vibrator pre-gripper (22) and the pivot point (7) of the transport element (8), the sheet release point (20) / transfer point of the sheet (2) from the transport element (8) to the pre-gripper and the pivot point of the pre-gripper (22) lie on the straight line (23) or almost on a straight line.
2. Einrichtung zum Zuführen von Bogen nach Anspruch 1/ dadurch gekennzeichnet/ daß die Bogenübergabe vom Transportelement (8) zum Vorgreifer (22) und vom Vorgreifer zur Bogentransporttrommel (13) jeweils tangential oder nahezu tangential verläuft .2. Device for feeding sheets according to claim 1 / characterized in that the sheet transfer from the transport element (8) to the pre-gripper (22) and from the pre-gripper to the sheet transport drum (13) is tangential or almost tangential.
3. Einrichtung zum Zuführen von Bogen nach Anspruch 1, dadurch gekennzeichnet, daß der Schwingwinkel oC des Transportelementes (8) vom Bogenerfassungspunkt (19) bzw. Bogenübergabepunkt (21) bis zum Bogenfreigabepunkt (20) unter 25 Grad liegt.3. Device for feeding sheets according to claim 1, characterized in that the oscillation angle oC of the transport element (8) from the sheet detection point (19) or sheet transfer point (21) to the sheet release point (20) is below 25 degrees.
4. Einrichtung zum Zuführen von Bogen nach Anspruch 1/ dadurch gekennzeichnet/ daß das Transportelement (8) als Saugerschwinger ausgebildet ist. 4. Device for feeding sheets according to claim 1 / characterized in that the transport element (8) is designed as a suction oscillator.
5. Einrichtung zum Zuführen von Bogen nach Anspruch 1/ dadurch gekennzeichnet/ daß der Vorgreifer (22) als Saugerschwinger ausgebildet ist.5. A device for feeding sheets according to claim 1 / characterized in that the pre-gripper (22) is designed as a suction oscillator.
6. Einrichtung zum Zuführen von Bogen nach Anspruch 1, dadurch gekennzeichnet/ daß der Anfang des Schwingweges des Transportelementes (8) tangential oder nahezu tangential zu einer Parallelebene einer ersten Ebene (3)/ der Anlegerbogenstapel- ebene/ liegt.6. Device for feeding sheets according to claim 1, characterized in / that the beginning of the oscillation path of the transport element (8) is tangential or almost tangential to a parallel plane of a first plane (3) / the feeder sheet stacking plane /.
7. Einrichtung zum Zuführen von Bogen nach Anspruch 1, dadurch gekennzeichnet/ daß das Transportelement (8) eine Einrichtung zur Vertikalbewegung (11) des zu vereinzelnden Bogens (2) enthält.7. Device for feeding sheets according to claim 1, characterized in / that the transport element (8) contains a device for vertical movement (11) of the sheet to be separated (2).
8. Einrichtung zum Zuführen von Bogen nach Anspruch 1/ dadurch gekennzeichnet/ daß dem Transportelement (8) eine Einrichtung zur Vertikalbewegung (11) des zu vereinzelnden Bogens (2) vorgeordnet ist.8. Device for feeding sheets according to claim 1 / characterized in that the transport element (8) is preceded by a device for vertical movement (11) of the sheet to be separated (2).
9. Einrichtung zum Zuführen von Bogen nach Anspruch 7 oder 8/ dadurch gekennzeichnet/ daß die Einrichtung zur Vertikalbewegung (11) des Bogens als Hubsauger/Mehrstufensauger (15) ausgebildet ist. 9. A device for feeding sheets according to claim 7 or 8 / characterized in that the device for vertical movement (11) of the sheet is designed as a lifting suction device / multi-stage suction device (15).
PCT/DE1997/002521 1996-10-29 1997-10-28 Device for feeding sheets to a conveyor drum in a printing press WO1998018703A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP97949860A EP0939739B1 (en) 1996-10-29 1997-10-28 Device for feeding sheets to a conveyor drum in a printing press
DE59703696T DE59703696D1 (en) 1996-10-29 1997-10-28 DEVICE FOR FEEDING SHEETS TO A SHEET TRANSPORT DRUM OF A PRINTING MACHINE

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19644945A DE19644945A1 (en) 1996-10-29 1996-10-29 Feeder device
DE19644945.6 1996-10-29

Publications (1)

Publication Number Publication Date
WO1998018703A1 true WO1998018703A1 (en) 1998-05-07

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Application Number Title Priority Date Filing Date
PCT/DE1997/002521 WO1998018703A1 (en) 1996-10-29 1997-10-28 Device for feeding sheets to a conveyor drum in a printing press

Country Status (3)

Country Link
EP (1) EP0939739B1 (en)
DE (2) DE19644945A1 (en)
WO (1) WO1998018703A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100391747C (en) * 2004-02-25 2008-06-04 理想科学工业株式会社 Stencil printing machine
DE102006020907A1 (en) * 2006-05-05 2007-11-08 Man Roland Druckmaschinen Ag Printing machine has feeder system with pre-gripper and roller system, motor for feeder system being synchronized with roller system, eliminating fluctuations in loading of two systems

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE614043C (en) * 1933-01-29 1935-05-31 Vomag Betr S A G Sheet feeder for printing machines
US2698175A (en) * 1946-09-14 1954-12-28 Chandler & Price Co Sheet feeding mechanism
FR1239262A (en) * 1958-11-26 1960-08-19 Lithographic printing machines for the reproduction of lithographic printing plates
DE1124518B (en) * 1960-12-20 1962-03-01 Mabeg Maschb G M B H Sheet feeder with pre-blowers and pneumatic release agents
DE3634659A1 (en) * 1985-10-10 1987-04-16 Adamovske Strojirny Kp Zvs BOWING DEVICE

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE614043C (en) * 1933-01-29 1935-05-31 Vomag Betr S A G Sheet feeder for printing machines
US2698175A (en) * 1946-09-14 1954-12-28 Chandler & Price Co Sheet feeding mechanism
FR1239262A (en) * 1958-11-26 1960-08-19 Lithographic printing machines for the reproduction of lithographic printing plates
DE1124518B (en) * 1960-12-20 1962-03-01 Mabeg Maschb G M B H Sheet feeder with pre-blowers and pneumatic release agents
DE3634659A1 (en) * 1985-10-10 1987-04-16 Adamovske Strojirny Kp Zvs BOWING DEVICE

Also Published As

Publication number Publication date
DE19644945A1 (en) 1998-04-30
EP0939739A1 (en) 1999-09-08
DE59703696D1 (en) 2001-07-05
EP0939739B1 (en) 2001-05-30

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