EP1466850B1 - Sheet feeder for the separation of sheets - Google Patents

Sheet feeder for the separation of sheets Download PDF

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Publication number
EP1466850B1
EP1466850B1 EP04007422A EP04007422A EP1466850B1 EP 1466850 B1 EP1466850 B1 EP 1466850B1 EP 04007422 A EP04007422 A EP 04007422A EP 04007422 A EP04007422 A EP 04007422A EP 1466850 B1 EP1466850 B1 EP 1466850B1
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EP
European Patent Office
Prior art keywords
sheet
transport
drive
separator
sense
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 - Fee Related
Application number
EP04007422A
Other languages
German (de)
French (fr)
Other versions
EP1466850A2 (en
EP1466850A3 (en
Inventor
Hartmut Nagel
Guntram Diem
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Koenig and Bauer AG
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Koenig and Bauer AG
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Filing date
Publication date
Application filed by Koenig and Bauer AG filed Critical Koenig and Bauer AG
Publication of EP1466850A2 publication Critical patent/EP1466850A2/en
Publication of EP1466850A3 publication Critical patent/EP1466850A3/en
Application granted granted Critical
Publication of EP1466850B1 publication Critical patent/EP1466850B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H3/00Separating articles from piles
    • B65H3/08Separating articles from piles using pneumatic force
    • B65H3/0808Suction grippers
    • B65H3/0816Suction grippers separating from the top of pile
    • B65H3/0825Suction grippers separating from the top of pile and acting on the rear part of the articles relatively to the final separating direction
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00Handling processes for sheets or webs
    • B65H2301/30Orientation, displacement, position of the handled material
    • B65H2301/33Modifying, selecting, changing orientation
    • B65H2301/331Skewing, correcting skew, i.e. changing slightly orientation of material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2511/00Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/20Location in space
    • B65H2511/24Irregularities, e.g. in orientation or skewness
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2511/00Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/50Occurence
    • B65H2511/51Presence
    • B65H2511/514Particular portion of element
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2513/00Dynamic entities; Timing aspects
    • B65H2513/50Timing
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00Handled material; Storage means
    • B65H2701/10Handled articles or webs
    • B65H2701/13Parts concerned of the handled material
    • B65H2701/131Edges
    • B65H2701/1311Edges leading edge

Definitions

  • the invention relates to a sheet feeder for separating sheets with a first and a second sheet separator, each having a separating sucker receiving Trennsaugeritati and a transport suction receiving Transportportsaugeritati and an associated sheet separation height adjustment.
  • a vacuum cleaner and transport suction exhibiting sheet separator In sheet feeders usually a vacuum cleaner and transport suction exhibiting sheet separator is provided.
  • the separation sucker and the transport suction device are driven by means of cam coupling gears.
  • the separating sucker receiving Trennsauger here a cyclic movement between an upper and a lower detent position is impressed.
  • the respective uppermost arc of a sheet stack is detected by the separating suckers and separated by the subsequent movement into the upper detent position.
  • a transfer position of the isolated sheet In a transfer position of the isolated sheet is transferred to the transport suction, which preferably perform a translational movement and transport the separated from the transport suction sheets to the sheet feeder downstream sheet processing machine.
  • the sheet separator is assigned a height adjustment device.
  • the transport suction carrier In order to change the position of the sheet in the bow bearing with respect to their front edge, is known from DE-Gbm 92 05 400, to pivot the transport suction carrier about a vertical axis.
  • the transport suction carrier is arranged pivotably on a carriage which carries out a translatory movement by means of a vertical bearing.
  • a roller lever At the camp engages a roller lever, which is in operative connection with an adjustable guide rail.
  • This device can be implemented only with great effort, the additional masses in large-sized and high-speed machines cause high wear and stimulate the work organs to vibrations that affect the Zu Switzerlandgenaumaschinetechnik adversely.
  • the Patent application EP1 130 443 A2 is part of the state of the art within the meaning of Article 54 (3).
  • This document discloses a sheet feeder comprising two sheet separators, each comprising a support carrying both a vacuum cleaner and a transport suction.
  • the document thus does not disclose a first and second sheet separator, each having a Trennsauger receiving Trennsaugeritati and a transport suction receiving transport suction carrier. Further, no associated sheet separation height adjustment is disclosed from this document.
  • a height setting device is provided which, initiated by a stack scan, influences the height level of this unit.
  • Such sheet feeder have the disadvantage that it is not possible due to the rigid coupling of the sheet separator to set the individual sheet separators independently. This is an adaptation to the processed material, to the shape of the sheet pile and a change in the position of the sheet with respect to the leading edge not possible, so that these sheet feeder are used only limited.
  • the object of the invention is to modify a generic sheet feeder so that with simple means a change in the position of the sheet with respect to its leading edge is possible and the effectiveness and the universality of the downstream processing machine is increased.
  • the object is achieved by a sheet feeder according to claim 1.
  • a sheet feeder 1 is shown with a sheet 3 consisting of sheet stack 2 and a downstream belt table 6.
  • the sheet stack 2 is positioned on a stacking plate 11, which is arranged on lifting means 4.
  • the lifting means 4 are in operative connection with a not shown, positioned in a frame 5 of the sheet feeder 1 elevator.
  • a first sheet separator 7 and a second sheet separator 8 are provided in the sheet feeder 1, a first sheet separator 7 and a second sheet separator 8 are provided.
  • Each sheet separator 7; 8 is provided with separating suckers 9 and transport suckers 10, which are connected to extending in the direction of the width of the sheet 3 Trennsaugeritatin 12 and a common Transportaugaugeritati 13.
  • the Trennsauger technologies 12 are each connected to the output member of a cam coupling transmission, not shown, which the Trennsauger relien 12 and thus the Trennsaugern 9 a cyclic movement between a lower detent position, in which place the separating sucker 9 on the sheet pile 2, and an upper detent position, the approximately in Fig. 1 is imprinted.
  • the first Transportaugaugerany 13.1 is connected by means of a rotary joint 26 with the output member of a cam coupling mechanism, not shown, of the first sheet separator 7 and the second Transportaugauger situated 13.2 by means of a rotary drive joint 27 with the output member of a cam coupling of the second sheet separator 8, not shown.
  • the first Transportaugauger dispos 13.1 is pivotable about an axis perpendicular to the transport direction 14 extending axis and the second Transportaugauger situated 13.2 transversely to the transport direction 14 slidably disposed and pivotable about a perpendicular to the transport direction 14 extending axis.
  • the Transportportsauger situated 13.1, 13.2 are rigidly connected to each other at their ends facing each other and form the common Transportportsaugeritati 13.
  • the common Transportaugaugeritati 13 and thus the Transportauger 10 are cyclically by the cam coupling, not shown, in the transport direction 14 and opposite thereto moves.
  • the first sheet separator 7 is a driving this first drive 15 and the second sheet separator 8 associated with this driving second drive 16.
  • a second scanning device 29 is provided at the first sheet separator 7, a first scanning device 28 and the second sheet separator 8, a second scanning device 29 is provided.
  • the first scanning device 28 detects the surface of the sheet stack 2 in the region of the first sheet separator 7, while the surface of the sheet stack 2 in the region of the second sheet separator 8 is detected with the second scanning device 29.
  • the first sheet separator 7 is arranged by means of first lifting elements 17 on a first longitudinal guide 19 and the second sheet separator 8 by means of second lifting elements 18 on a second longitudinal guide 20.
  • On the longitudinal guides 19; 20 are the lifting elements 17; 18 and thus the sheet separator 7; 8 in or against the transport direction 14 synchronously, that is provided at the same time by the same route sections provided. These are z. B.
  • the longitudinal guides 19; 20 formed as spindles, in which the lifting elements 17; 18 intervene.
  • the longitudinal guides 19; 20 are received in bearings 21 which are fixedly connected to a rear cross member 22.
  • a first servo motor 24 and a second servo motor 25 are arranged, wherein the first servo motor 24 is connected to the first longitudinal guide 19 and the second servo motor 25 to the second longitudinal guide 20.
  • the longitudinal guides 19; 20 formed as spindles and the associated actuating motors 24; 25 executed as a rotational movement implementing drive elements. It is of course also possible, the adjusting movements of the sheet separator 7; 8 both in and against the transport direction 14 by means of the sheet separators 7; To realize 8 attacking linear actuators.
  • the first drive 15 and the second drive 16 are connected to a control and regulating device 30, which is linked by means of a rotary encoder 31 to the sheet feeder 1 downstream processing machine.
  • the first scanning device 28 is connected via the control and regulating device 30 with the first lifting elements 17 and the second scanning device 29 via the control and regulating device 30 with the second lifting elements 18.
  • control and regulating device 30 is an input device 32 in connection, through which the lifting elements 17; 18 can be influenced manually.
  • the first drive 15 and the second drive 16 are controlled via the control and regulating device 30, including the signals generated by the rotary encoder 31, so that these rotate synchronously with each other and in the power stroke of the downstream processing machine.
  • the drives 15; 16 it is z. B. possible to drive these according to the master-slave principle, wherein one of the drives 15; 16 acts as master and the other as slave.
  • the drives 15,16 are driven synchronously and thus the detected by the transport suckers 10 sheet 3 promoted in the position in which this was taken over by the separation suckers 9.
  • the leading edge of the transport suckers 10 guided sheet 3 runs during transport constantly parallel to the position in which the sheet 3 was separated from the suction cups 9. Since the position of the leading edge of a sheet 3 separated from the separating suckers 9 does not necessarily coincide with the position of a laying line formed by front marks in a position at a feed table arranged downstream of the belt table 6, the leading edge of the sheet 3 transported by the belt table 6 is detected.
  • a front edge scan 33 is associated with the belt table 6 or the feed table.
  • the leading edge of the sheet 3 is detected and supplied to the position of the leading edge characterizing actual value of the control and regulating device 30.
  • the actual value is compared with a stored desired value.
  • a control signal is generated and fed to the drive 15, 16 which is tracked as a slave.
  • the first drive 15 was designed as a master
  • the second drive 16 is tracked as a slave.
  • the control signal is supplied and this accelerated or decelerated during the transport of the sheet 3 by the transport suction 10 in the transport direction 14.
  • the common Transportaugaugerraj 13 is inclined to the extent that the leading edge of the transported sheet 3 is parallel to the laying line, when the sheet 3 is transferred from the transport suckers to the downstream belt table.
  • the transport suction carrier 13 is returned against the transport direction 14 to take over the following separated by the separation suckers 9 sheet 3.
  • working as a slave second drive 16 is different from the working as a master first drive 15 delayed or accelerated to realize the original position of the Transportaugertrager umans 13.
  • the second drive 16 has been accelerated during the transport of the sheet 3, in order to realize the original position of the transport suction carrier 13 during the transfer of the following sheet 3, it is delayed in the movement counter to the transport direction 14.

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

Description

Die Erfindung betrifft einen Bogenanleger zum Vereinzeln von Bogen mit einem ersten und einem zweiten Bogentrenner, die jeweils einen Trennsauger aufnehmenden Trennsaugerträger und einen Transportsauger aufnehmenden Transportsaugerträger sowie eine zugeordnete Bogentrennerhöhenverstellung aufweisen.The invention relates to a sheet feeder for separating sheets with a first and a second sheet separator, each having a separating sucker receiving Trennsaugerträger and a transport suction receiving Transportportsaugerträger and an associated sheet separation height adjustment.

In Bogenanlegern ist üblicherweise ein Trennsauger und Transportsauger aufweisender Bogentrenner vorgesehen. Der Antrieb der Trennsauger und der Transportsauger erfolgt mit Hilfe von Kurvenkoppelgetrieben. Dabei wird einem die Trennsauger aufnehmenden Trennsaugerträger eine zyklische Bewegung zwischen einer oberen und einer unteren Rastposition aufgeprägt. In der unteren Rastposition wird von den Trennsaugern der jeweils oberste Bogen eines Bogenstapels erfasst und durch die nachfolgende Bewegung in die obere Rastposition vereinzelt. In einer Übergabeposition wird der vereinzelte Bogen an die Transportsauger übergeben, die vorzugsweise eine translatorische Bewegung ausführen und den von den Transportsaugern vereinzelten Bogen zur dem Bogenanleger nachgeordneten bogenverarbeitenden Maschine transportieren. Zur Realisierung der Bogentrennung und des Bogentransports sind Blasdüsen vorgesehen. Außerdem ist dem Bogentrenner eine Höhenstelleinrichtung zugeordnet.
Um die Lage der Bogen im Bogenlager hinsichtlich ihrer Vorderkante verändern zu können, ist aus dem DE-Gbm 92 05 400 bekannt, den Transportsaugerträger um eine vertikale Achse zu verschwenken. Dazu ist der Transportsaugerträger an einem eine translatorische Bewegung ausführenden Schlitten mittels eines vertikalen Lagers schwenkbar angeordnet. Am Lager greift ein Rollenhebel an, der mit einer verstellbaren Führungsschiene in Wirkverbindung steht.
Diese Vorrichtung ist nur mit einem hohen Aufwand zu realisieren, wobei die zusätzlichen Massen bei großformatigen und schnelllaufenden Maschinen einen hohen Verschleiß bedingen sowie die Arbeitsorgane zu Schwingungen anregen, die die Zuführgenauigkeit nachteilig beeinflussen.
Die Patentanmeldung EP1 130 443 A2 ist Teil des Stands der Technik im Sinne von Artikel 54(3). Dieses Dokument offenbart einen Bogenanleger, der zwei Bogentrenner aufweist, die jeweils einen Träger, der sowohl einen Trennsauger als auch einen Transportsauger trägt, umfassen. Das Dokument offenbart somit nicht einen ersten und zweiten Bogentrenner, die jeweils einen Trennsauger aufnehmenden Trennsaugerträger und einen Transportsauger aufnehmenden Transportsaugerträger aufweisen. Weiter wird keine zugeordnete Bogentrennerhöhenverstellung aus dieser Druckschrift offenbart.
Bei großformatigen Bogenanlegern ist es bekannt, in der Formatbreite zwei Bogentrenner nebeneinander anzuordnen sowie die Antriebe dieser Bogentrenner mechanisch zu koppeln und als funktionelle Einheit zu betreiben, wobei eine Höhenstelleinrichtung vorgesehen ist, die, initiiert durch eine Stapelabtastung, das Höhenniveau dieser Einheit beeinflusst.
In sheet feeders usually a vacuum cleaner and transport suction exhibiting sheet separator is provided. The separation sucker and the transport suction device are driven by means of cam coupling gears. In this case, the separating sucker receiving Trennsaugerträger a cyclic movement between an upper and a lower detent position is impressed. In the lower detent position, the respective uppermost arc of a sheet stack is detected by the separating suckers and separated by the subsequent movement into the upper detent position. In a transfer position of the isolated sheet is transferred to the transport suction, which preferably perform a translational movement and transport the separated from the transport suction sheets to the sheet feeder downstream sheet processing machine. To realize the sheet separation and the sheet transport blowing nozzles are provided. In addition, the sheet separator is assigned a height adjustment device.
In order to change the position of the sheet in the bow bearing with respect to their front edge, is known from DE-Gbm 92 05 400, to pivot the transport suction carrier about a vertical axis. For this purpose, the transport suction carrier is arranged pivotably on a carriage which carries out a translatory movement by means of a vertical bearing. At the camp engages a roller lever, which is in operative connection with an adjustable guide rail.
This device can be implemented only with great effort, the additional masses in large-sized and high-speed machines cause high wear and stimulate the work organs to vibrations that affect the Zuführgenauigkeit adversely.
The Patent application EP1 130 443 A2 is part of the state of the art within the meaning of Article 54 (3). This document discloses a sheet feeder comprising two sheet separators, each comprising a support carrying both a vacuum cleaner and a transport suction. The document thus does not disclose a first and second sheet separator, each having a Trennsauger receiving Trennsaugerträger and a transport suction receiving transport suction carrier. Further, no associated sheet separation height adjustment is disclosed from this document.
In the case of large-format sheet feeders, it is known to juxtapose two sheet separators in the format width and to mechanically couple the drives of these sheet separators and to operate them as a functional unit, wherein a height setting device is provided which, initiated by a stack scan, influences the height level of this unit.

Derartige Bogenanleger haben den Nachteil, dass es aufgrund der starren Kopplung der Bogentrenner nicht möglich ist, die einzelnen Bogentrenner unabhängig voneinander einzustellen. Damit ist eine Anpassung an das Verarbeitungsgut, an die Form des Bogenstapels sowie eine Veränderung der Lage der Bogen bezüglich der Vorderkante nicht möglich, so dass diese Bogenanleger nur beschränkt einsetzbar sind.Such sheet feeder have the disadvantage that it is not possible due to the rigid coupling of the sheet separator to set the individual sheet separators independently. This is an adaptation to the processed material, to the shape of the sheet pile and a change in the position of the sheet with respect to the leading edge not possible, so that these sheet feeder are used only limited.

Aufgabe der Erfindung ist es, einen gattungsgemäßen Bogenanleger so zu verändern, dass mit einfachen Mitteln eine Veränderung der Lage der Bogen hinsichtlich ihrer Vorderkante möglich ist und die Effektivität sowie die Universalität der nachgeordneten Verarbeitungsmaschine erhöht wird.The object of the invention is to modify a generic sheet feeder so that with simple means a change in the position of the sheet with respect to its leading edge is possible and the effectiveness and the universality of the downstream processing machine is increased.

Erfindungsgemäße wird die Aufgabe durch einen Bogenanleger nach Anspruch 1 gelöst.According to the invention, the object is achieved by a sheet feeder according to claim 1.

Durch die erfindungsgemäße Lösung ist es möglich, die Bogen im Bogenanleger ohne einen getriebetechnischen Mehraufwand nach der Vorderkante auszurichten sowie die Bogentrenner individuell anzusteuern und damit diese den zur Verarbeitung gelangenden Bogenstapeln anzupassen.By the solution according to the invention, it is possible to align the sheet in the sheet feeder without a gearbox overhead on the leading edge and individually control the sheet separator and thus adapt this to the processing reaching sheet stacks.

An einem Ausführungsbeispiel wird die Erfindung näher erläutert. In den zugehörigen Zeichnungen zeigen

Fig. 1:
einen Bogenanleger in der Seitenansicht,
Fig. 2:
eine Draufsicht auf den Bogenanleger nach Figur 1,
Fig. 3:
eine Ansicht gem. Figur 2 mit einer Steuer- und Regeleinrichtung,
Fig. 4:
eine Ansicht des Bogenanlegers gemäß Figur 1 von hinten.
In one embodiment, the invention is explained in detail. In the accompanying drawings show
Fig. 1:
a sheet feeder in the side view,
Fig. 2:
a plan view of the sheet feeder after FIG. 1 .
3:
a view gem. FIG. 2 with a control and regulating device,
4:
a view of the sheet feeder according to FIG. 1 from behind.

In Fig. 1 ist ein Bogenanleger 1 mit einem aus Bogen 3 bestehenden Bogenstapel 2 und einem nachgeordneten Bändertisch 6 dargestellt. Der Bogenstapel 2 ist auf einer Stapelplatte 11 positioniert, die an Hubmittel 4 angeordnet ist. Die Hubmittel 4 stehen in Wirkverbindung mit einem nicht dargestellten, in einem Gestell 5 des Bogenanlegers 1 positionierten Aufzug.In Fig. 1 a sheet feeder 1 is shown with a sheet 3 consisting of sheet stack 2 and a downstream belt table 6. The sheet stack 2 is positioned on a stacking plate 11, which is arranged on lifting means 4. The lifting means 4 are in operative connection with a not shown, positioned in a frame 5 of the sheet feeder 1 elevator.

Im Bogenanleger 1 sind ein erster Bogentrenner 7 und ein zweiter Bogentrenner 8 vorgesehen. Jeder Bogentrenner 7; 8 ist mit Trennsaugern 9 und Transportsaugern 10 versehen, die mit sich in Richtung der Breite der Bogen 3 erstreckendem Trennsaugerträgern 12 und einem gemeinsamen Transportsaugerträger 13 verbunden sind. Die Trennsaugerträger 12 sind jeweils mit dem Abtriebsglied eines nicht dargestellten Kurvenkoppelgetriebes verbunden, die den Trennsaugerträgern 12 und damit den Trennsaugern 9 eine zyklische Bewegung zwischen einer unteren Rastposition, in der die Trennsauger 9 auf den Bogenstapel 2 aufsetzen, und einer oberen Rastposition, die etwa in Fig. 1 dargestellt ist, aufprägt. Dem ersten Bogentrenner 7 ist ein erster Transportsaugerträger 13.1 und dem zweiten Bogentrenner 8 ein zweiter Transportsaugerträger 13.2 zugeordnet. Der erste Transportsaugerträger 13.1 ist mittels eines Drehgelenks 26 mit dem Abtriebsglied eines nicht dargestellten Kurvenkoppelgetriebes des ersten Bogentrenners 7 und der zweite Transportsaugerträger 13.2 mittels eines Drehschubgelenks 27 mit dem Abtriebsglied eines nicht dargestellten Kurvenkoppelgetriebes des zweiten Bogentrenners 8 verbunden. Damit ist der erste Transportsaugerträger 13.1 um eine lotrecht zur Transportrichtung 14 verlaufende Achse schwenkbar und der zweite Transportsaugerträger 13.2 quer zur Transportrichtung 14 verschiebbar sowie um eine lotrecht zur Transportrichtung 14 verlaufende Achse schwenkbar angeordnet. Die Transportsaugerträger 13.1, 13.2 sind an ihren einander zugewandten Enden miteinander starr verbunden und bilden den gemeinsamen Transportsaugerträger 13. Der gemeinsame Transportsaugerträger 13 und damit die Transportsauger 10 werden durch die nicht dargestellten Kurvenkoppelgetriebe zyklisch in die Transportrichtung 14 und entgegengesetzt dazu bewegt.
Dem ersten Bogentrenner 7 ist ein diesen treibenden erster Antrieb 15 und dem zweiten Bogentrenner 8 ein diesen treibenden zweiter Antrieb 16 zugeordnet. Am ersten Bogentrenner 7 ist eine erste Abtasteinrichtung 28 und am zweiten Bogentrenner 8 eine zweite Abtasteinrichtung 29 vorgesehen. Die erste Abtasteinrichtung 28 erfasst die Oberfläche des Bogenstapels 2 im Bereich des ersten Bogentrenners 7, während mit der zweiten Abtasteinrichtung 29 die Oberfläche des Bogenstapels 2 im Bereich des zweiten Bogentrenners 8 erfasst wird.
Der erste Bogentrenner 7 ist mittels erster Hubelemente 17 an einer ersten Längsführung 19 und der zweite Bogentrenner 8 mit Hilfe von zweiten Hubelementen 18 an einer zweiten Längsführung 20 angeordnet. Auf den Längsführungen 19; 20 sind die Hubelemente 17; 18 und damit die Bogentrenner 7; 8 in oder entgegen der Transportrichtung 14 synchron, d. h. jeweils gleichzeitig um gleiche Wegabschnitte verbringbar vorgesehen. Dazu sind z. B. die Längsführungen 19; 20 als Spindeln ausgebildet, in die die Hubelemente 17; 18 eingreifen. Die Längsführungen 19; 20 sind in Lagern 21 aufgenommen, die fest mit einer hinteren Traverse 22 verbunden sind. An einer vorderen Traverse 23 sind ein erster Stellmotor 24 und ein zweiter Stellmotor 25 angeordnet, wobei der erste Stellmotor 24 mit der ersten Längsführung 19 und der zweite Stellmotor 25 mit der zweiten Längsführung 20 verbunden ist.
In the sheet feeder 1, a first sheet separator 7 and a second sheet separator 8 are provided. Each sheet separator 7; 8 is provided with separating suckers 9 and transport suckers 10, which are connected to extending in the direction of the width of the sheet 3 Trennsaugerträgern 12 and a common Transportaugaugerträger 13. The Trennsaugerträger 12 are each connected to the output member of a cam coupling transmission, not shown, which the Trennsaugerträgern 12 and thus the Trennsaugern 9 a cyclic movement between a lower detent position, in which place the separating sucker 9 on the sheet pile 2, and an upper detent position, the approximately in Fig. 1 is imprinted. The first sheet separator 7, a first Transportaugaugerträger 13.1 and the second sheet separator 8, a second Transportaugaugerträger 13.2 assigned. The first Transportaugaugerträger 13.1 is connected by means of a rotary joint 26 with the output member of a cam coupling mechanism, not shown, of the first sheet separator 7 and the second Transportaugaugerträger 13.2 by means of a rotary drive joint 27 with the output member of a cam coupling of the second sheet separator 8, not shown. Thus, the first Transportaugaugerträger 13.1 is pivotable about an axis perpendicular to the transport direction 14 extending axis and the second Transportaugaugerträger 13.2 transversely to the transport direction 14 slidably disposed and pivotable about a perpendicular to the transport direction 14 extending axis. The Transportportsaugerträger 13.1, 13.2 are rigidly connected to each other at their ends facing each other and form the common Transportportsaugerträger 13. The common Transportaugaugerträger 13 and thus the Transportauger 10 are cyclically by the cam coupling, not shown, in the transport direction 14 and opposite thereto moves.
The first sheet separator 7 is a driving this first drive 15 and the second sheet separator 8 associated with this driving second drive 16. At the first sheet separator 7, a first scanning device 28 and the second sheet separator 8, a second scanning device 29 is provided. The first scanning device 28 detects the surface of the sheet stack 2 in the region of the first sheet separator 7, while the surface of the sheet stack 2 in the region of the second sheet separator 8 is detected with the second scanning device 29.
The first sheet separator 7 is arranged by means of first lifting elements 17 on a first longitudinal guide 19 and the second sheet separator 8 by means of second lifting elements 18 on a second longitudinal guide 20. On the longitudinal guides 19; 20 are the lifting elements 17; 18 and thus the sheet separator 7; 8 in or against the transport direction 14 synchronously, that is provided at the same time by the same route sections provided. These are z. B. the longitudinal guides 19; 20 formed as spindles, in which the lifting elements 17; 18 intervene. The longitudinal guides 19; 20 are received in bearings 21 which are fixedly connected to a rear cross member 22. At a front cross member 23, a first servo motor 24 and a second servo motor 25 are arranged, wherein the first servo motor 24 is connected to the first longitudinal guide 19 and the second servo motor 25 to the second longitudinal guide 20.

Im Ausführungsbeispiel wurden die Längsführungen 19; 20 als Spindeln ausgebildet und die diesen zugeordneten Stellmotore 24; 25 als eine Drehbewegung realisierende Antriebselemente ausgeführt. Es ist natürlich auch möglich, die Stellbewegungen der Bogentrenner 7; 8 sowohl in als auch entgegen der Transportrichtung 14 mit Hilfe von an den Bogentrennern 7; 8 angreifenden Linearantrieben zu realisieren.
Der erste Antrieb 15 und der zweite Antrieb 16 sind mit einer Steuer- und Regeleinrichtung 30 verbunden, die mittels eines Drehwinkelgebers 31 mit der dem Bogenanleger 1 nachgeordneten Verarbeitungsmaschine verknüpft ist. Die erste Abtasteinrichtung 28 ist über die Steuer- und Regeleinrichtung 30 mit den ersten Hubelementen 17 und die zweite Abtasteinrichtung 29 über die Steuer- und Regeleinrichtung 30 mit den zweiten Hubelementen 18 verbunden. Mit der Steuer- und Regeleinrichtung 30 steht eine Eingabeeinrichtung 32 in Verbindung, durch die die Hubelemente 17; 18 manuell beeinflusst werden können.
Außerdem ist es möglich, mit Hilfe der Eingabeeinrichtung 32 bearbeitungstechnische Kenngrößen einzugeben, die in der Steuer- und Regeleinrichtung 30 zur Realisierung eines automatisierten Betriebs des Bogenanlegers 1 abrufbar gespeichert werden können.
Der erste Antrieb 15 und der zweite Antrieb 16 werden über die Steuer- und Regeleinrichtung 30 unter Einbeziehung der von dem Drehwinkelgeber 31 generierten Signale angesteuert, so dass diese synchron zueinander und im Arbeitstakt der nachgeordneten Verarbeitungsmaschine umlaufen. Zur Realisierung eines synchronen Betriebes der Antriebe 15; 16 ist es z. B. möglich, diese nach dem Master-Slave-Prinzip anzutreiben, wobei einer der Antriebe 15; 16 als Master und der andere als Slave wirkt. Durch die Antriebe 15,16 werden die Bogentrenner 7,8 und so die die Bewegung der Trennsaugerträger 12 sowie die die Bewegung der Transportsaugerträger 13.1, 13.2 steuernden Kurvenkoppelgetriebe im Gleichlauf angetrieben. Damit setzen die dem ersten Bogentrenner 7 zugeordneten Trennsauger 9 sowie die dem zweiten Bogentrenner 8 zugeordneten Trennsauger 9 gleichzeitig in ihrer unteren Rastposition auf den Bogenstapel 2 auf, erfassen den jeweils obersten Bogen 3 und heben diesen vom Bogenstapel 2 ab, indem sie in ihre oberste Rastposition gesteuert werden. Der Trennvorgang des durch Trennsauger 9 erfassten Bogens 3 vom Bogenstapel 2 wird in bekannter Weise von nicht dargestellten Bläsern unterstützt. Der vereinzelte und von den Trennsaugern 9 in seiner oberen Rastposition gehaltene Bogen 3 wird an die Transportsauger 10 übergeben und von diesen in Transportrichtung 14 gefördert. Durch das Master-Slave-Antriebsprinzip der Antriebe 15,16 werden diese synchron angetrieben und damit der von den Transportsaugern 10 erfasste Bogen 3 in der Lage gefördert, in der dieser von den Trennsaugern 9 übernommen wurde. D.h., die Vorderkante des von den Transportsaugern 10 geführten Bogens 3 verläuft während des Transports ständig parallel zu der Lage, in der der Bogen 3 von den Trennsaugern 9 vereinzelt wurde.
Da die Lage der Vorderkante eines von den Trennsaugern 9 vereinzelten Bogens 3 nicht unbedingt mit der Lage einer durch Vordermarken in einer Position an einem dem Bändertisch 6 nachgeordneten Anlegtisch gebildeten Anleglinie übereinstimmt, wird die Vorderkante des von dem Bändertisch 6 transportierten Bogens 3 erfasst. Dazu ist dem Bändertisch 6 oder dem Anlegtisch eine Vorderkantenabtastung 33 zugeordnet. Von der Vorderkantenabtastung 33 wird die Vorderkante der Bogen 3 erfasst und ein die Lage der Vorderkante charakterisierender Ist-Wert der Steuer- und Regeleinrichtung 30 zugeführt. In der Steuer- und Regeleinrichtung 30 wird der Ist-Wert mit einem abgelegten Soll-Wert verglichen. Bei Abweichungen des Ist-Wertes vom Soll-Wert wird ein Steuersignal generiert und dem als Slave nachgeführten Antrieb 15, 16 zugeführt. Im Ausführungsbeispiel Fig. 3 wurde der erste Antrieb 15 als Master ausgebildet, dem der zweite Antrieb 16 als Slave nachgeführt wird.
Damit wird dem zweiten Antrieb 16 das Steuersignal zugeführt und dieser während des Transportes des Bogens 3 durch die Transportsauger 10 in Transportrichtung 14 beschleunigt oder verzögert. Entsprechend wird der gemeinsame Transportsaugerträger 13 in dem Maß schräg gestellt, dass die Vorderkante des transportierten Bogens 3 parallel zur Anleglinie verläuft, wenn der Bogen 3 von den Transportsaugern an den nachgeordneten Bändertisch übergeben wird. Nach der Übergabe des gedrehten Bogens 3 wird der Transportsaugerträger 13 entgegen der Transportrichtung 14 zur Übernahme des nachfolgenden von den Trennsaugern 9 vereinzelten Bogens 3 zurückgeführt. Dabei wird der als Slave arbeitende zweite Antrieb 16 abweichend vom als Master arbeitenden ersten Antrieb 15 verzögert oder beschleunigt, um die ursprüngliche Lage des Transportsaugerträgers 13 zu realisieren. Wurde also der zweite Antrieb 16 während des Transports des Bogens 3 beschleunigt, wird, um die ursprüngliche Lage des Transportsaugerträgers 13 bei der Übernahme des nachfolgenden Bogens 3 zu realisieren, dieser bei der Bewegung entgegen der Transportrichtung 14 verzögert.
In the embodiment, the longitudinal guides 19; 20 formed as spindles and the associated actuating motors 24; 25 executed as a rotational movement implementing drive elements. It is of course also possible, the adjusting movements of the sheet separator 7; 8 both in and against the transport direction 14 by means of the sheet separators 7; To realize 8 attacking linear actuators.
The first drive 15 and the second drive 16 are connected to a control and regulating device 30, which is linked by means of a rotary encoder 31 to the sheet feeder 1 downstream processing machine. The first scanning device 28 is connected via the control and regulating device 30 with the first lifting elements 17 and the second scanning device 29 via the control and regulating device 30 with the second lifting elements 18. With the control and regulating device 30 is an input device 32 in connection, through which the lifting elements 17; 18 can be influenced manually.
In addition, it is possible to enter with the help of the input device 32 processing characteristics, which can be stored in the control and regulation device 30 to realize an automated operation of the sheet feeder 1 retrievable.
The first drive 15 and the second drive 16 are controlled via the control and regulating device 30, including the signals generated by the rotary encoder 31, so that these rotate synchronously with each other and in the power stroke of the downstream processing machine. For realizing a synchronous operation of the drives 15; 16 it is z. B. possible to drive these according to the master-slave principle, wherein one of the drives 15; 16 acts as master and the other as slave. By the drives 15,16 the sheet separator 7,8 and so the movement of the Trennsaugerträger 12 and the movement of the transport suction carrier 13.1, 13.2 controlling cam coupling driven in synchronism. Thus set the first sheet separator 7 associated separating suction 9 and the second sheet separator 8 associated Trennsauger 9 at the same time in its lower detent position on the sheet stack 2, capture the respective uppermost sheet 3 and lift it from the sheet stack 2, by in their uppermost detent position to be controlled. The separation process of the detected by separating suction 9 sheet 3 from the sheet stack 2 is supported in a known manner by fans, not shown. The separated and held by the separating suction 9 in its upper detent position sheet 3 is transferred to the transport suction 10 and promoted by them in the transport direction 14. By the master-slave drive principle of the drives 15,16 these are driven synchronously and thus the detected by the transport suckers 10 sheet 3 promoted in the position in which this was taken over by the separation suckers 9. Ie, the leading edge of the transport suckers 10 guided sheet 3 runs during transport constantly parallel to the position in which the sheet 3 was separated from the suction cups 9.
Since the position of the leading edge of a sheet 3 separated from the separating suckers 9 does not necessarily coincide with the position of a laying line formed by front marks in a position at a feed table arranged downstream of the belt table 6, the leading edge of the sheet 3 transported by the belt table 6 is detected. For this purpose, a front edge scan 33 is associated with the belt table 6 or the feed table. From the leading edge scan 33, the leading edge of the sheet 3 is detected and supplied to the position of the leading edge characterizing actual value of the control and regulating device 30. In the control and regulating device 30, the actual value is compared with a stored desired value. In the case of deviations of the actual value from the desired value, a control signal is generated and fed to the drive 15, 16 which is tracked as a slave. In the embodiment Fig. 3 the first drive 15 was designed as a master, the second drive 16 is tracked as a slave.
Thus, the second drive 16, the control signal is supplied and this accelerated or decelerated during the transport of the sheet 3 by the transport suction 10 in the transport direction 14. Accordingly, the common Transportaugaugerträger 13 is inclined to the extent that the leading edge of the transported sheet 3 is parallel to the laying line, when the sheet 3 is transferred from the transport suckers to the downstream belt table. After the transfer of the turned sheet 3, the transport suction carrier 13 is returned against the transport direction 14 to take over the following separated by the separation suckers 9 sheet 3. In this case, working as a slave second drive 16 is different from the working as a master first drive 15 delayed or accelerated to realize the original position of the Transportaugertragerträgers 13. Thus, if the second drive 16 has been accelerated during the transport of the sheet 3, in order to realize the original position of the transport suction carrier 13 during the transfer of the following sheet 3, it is delayed in the movement counter to the transport direction 14.

Aufstellung der verwendeten BezugszeichenList of used reference numbers

11
Bogenanlegersheet feeder
22
Bogenstapelsheet pile
33
Bogenbow
44
Hubmittellifting means
55
Gestellframe
66
Bändertischbelt table
77
erster Bogentrennerfirst sheet separator
88th
zweiter Bogentrennersecond sheet separator
99
Trennsaugersuction separator
1010
Transportsaugertransport sucker
1111
Stapelplattestacking plate
1212
TrennsaugerträgerSeparating sucker carrier
1313
gemeinsamer Transportsaugerträgercommon transport suction carrier
13.113.1
erster Transportsaugerträgerfirst transport suction carrier
13.213.2
zweiter Transportsaugerträgersecond transport suction carrier
1414
Transportrichtungtransport direction
1515
erster Antriebfirst drive
1616
zweiter Antriebsecond drive
1717
erstes Hubelementfirst lifting element
1818
zweites Hubelementsecond lifting element
1919
erste Längsführungfirst longitudinal guide
2020
zweite Längsführungsecond longitudinal guide
2121
Lagercamp
2222
hintere Traverserear crossbar
2323
vordere Traversefront crossbar
2424
erster Stellmotorfirst servomotor
2525
zweiter Stellmotorsecond servomotor
2626
Drehgelenkswivel
2727
DrehschubgelenkTurning and sliding joint
2828
erste Abtasteinrichtungfirst scanning device
2929
zweite Abtasteinrichtungsecond scanning device
3030
Steuer- und RegeleinrichtungControl and regulating device
3131
DrehwinkelgeberRotary encoder
3232
Eingabeeinrichtunginput device
3333
VorderkantenabtastungFront edge scanning

Claims (7)

  1. Sheet feeder for separating sheets, comprising a first and a second sheet separator, which separators each comprise a separating sucker carrier receiving separating suckers and a transport sucker carrier receiving transport suckers as well as an associated sheet separator height adjustment means, characterised in that a first drive (15) is associated with the first sheet separator (7) and a second drive (16) is associated with the second sheet separator (8) and the drives (15, 16) are drivable by a controlling and regulating device (13) in the working cycle of the downstream processing machine, wherein a front edge scanner (33), which detects the front edge of the sheet (3) conveyed to the processing machine, is associated with the controlling and regulating device (30) and in the case of departures of the actual position from a predetermined target position a control signal driving in the sense of accelerating or retarding can be supplied by the controlling and regulating device (30) to one of the two drives (15, 16) during transport of a sheet (3), which is held by the transport suckers (10) arranged at the transport sucker carriers (13.1; 13.2), in a transport direction (14).
  2. Sheet feeder according to claim 1, characterised in that the drive (15, 16) driven in the sense of accelerating during the transport of the sheet (3) in transport direction (14) is drivable in the sense of retarding during movement of the transport suckers (10) against the transport direction (14).
  3. Sheet feeder according to claim 1, characterised in that the drive (15, 16) driven in the sense of retarding during the transport of the sheet (3) in transport direction (14) is drivable in the sense of accelerating during movement of the transport suckers (10) against the transport direction (14).
  4. Sheet feeder according to claim 1, characterised in that the drives (15, 16) are controllable in accordance with the master/slave principle.
  5. Sheet feeder according to claim 1 and 4, characterised in that the drive (15, 16) controlled as slave is drivable in the sense of accelerating or retarding.
  6. Sheet feeder according to claim 1, characterised in that the first transport sucker carrier (13.1) associated with the first sheet separator (7) and the second transport sucker carrier (13.2) associated with the second sheet separator (8) are constructed as a common transport sucker carrier (13).
  7. Sheet feeder according to claim 1 and 6, characterised in that the common transport sucker carrier (13) is associated with the sheet separators (7, 8) by means of a rotary joint (26) and a turning-and-sliding joint (27).
EP04007422A 2003-04-10 2004-03-26 Sheet feeder for the separation of sheets Expired - Fee Related EP1466850B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10316365A DE10316365A1 (en) 2003-04-10 2003-04-10 Sheet feeder for separating sheets
DE10316365 2003-04-10

Publications (3)

Publication Number Publication Date
EP1466850A2 EP1466850A2 (en) 2004-10-13
EP1466850A3 EP1466850A3 (en) 2008-01-02
EP1466850B1 true EP1466850B1 (en) 2011-08-24

Family

ID=32864414

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04007422A Expired - Fee Related EP1466850B1 (en) 2003-04-10 2004-03-26 Sheet feeder for the separation of sheets

Country Status (2)

Country Link
EP (1) EP1466850B1 (en)
DE (1) DE10316365A1 (en)

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1177652B (en) * 1956-04-07 1964-09-10 Georg Spiess Dr Ing Sheet feeding device with two suction nozzles that can be swiveled together around a pendular axis
DE2163083C3 (en) * 1971-12-18 1974-05-16 Heidelberger Druckmaschinen Ag, 6900 Heidelberg Suction head of a sheet feeder for printing machines
DE3919787A1 (en) * 1989-06-16 1991-01-03 Mabeg Maschinenbau Gmbh Nachf Sheet feeder setting-up method - having carrier plate on which sheet stack can be laid which is vertically adjustable by lifting system
DE9205400U1 (en) * 1992-04-21 1992-06-11 KBA-Planeta AG, O-8122 Radebeul Device for aligning sheets
DE19511296C2 (en) * 1995-03-28 1999-07-15 Gremser Masch Franz Device for lifting and transporting flat objects
DE19601470B4 (en) * 1996-01-17 2004-10-28 Heidelberger Druckmaschinen Ag Drag suction gear, in particular drag suction gear for a device for correcting angled bends
DE19620937B4 (en) * 1996-05-24 2004-08-05 Man Roland Druckmaschinen Ag sheet feeder
DE19755521A1 (en) * 1997-12-13 1999-06-17 Koenig & Bauer Ag Bow separator
DE10151484B4 (en) * 2001-10-18 2005-07-28 Man Roland Druckmaschinen Ag sheet feeder

Also Published As

Publication number Publication date
DE10316365A1 (en) 2004-11-04
EP1466850A2 (en) 2004-10-13
EP1466850A3 (en) 2008-01-02

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