EP0364737B1 - Blowing device for loosening sheets in the feeders of rotary printing machines - Google Patents

Blowing device for loosening sheets in the feeders of rotary printing machines Download PDF

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Publication number
EP0364737B1
EP0364737B1 EP89117084A EP89117084A EP0364737B1 EP 0364737 B1 EP0364737 B1 EP 0364737B1 EP 89117084 A EP89117084 A EP 89117084A EP 89117084 A EP89117084 A EP 89117084A EP 0364737 B1 EP0364737 B1 EP 0364737B1
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EP
European Patent Office
Prior art keywords
fans
sheets
loosening
pile
adjustable
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP89117084A
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German (de)
French (fr)
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EP0364737A2 (en
EP0364737A3 (en
Inventor
Arno Wirz
Dieter Bergmeier
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Heidelberger Druckmaschinen AG
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Heidelberger Druckmaschinen AG
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Publication of EP0364737A2 publication Critical patent/EP0364737A2/en
Publication of EP0364737A3 publication Critical patent/EP0364737A3/en
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    • 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
    • B65H3/46—Supplementary devices or measures to assist separation or prevent double feed
    • B65H3/48—Air blast acting on edges of, or under, articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2406/00—Means using fluid
    • B65H2406/10—Means using fluid made only for exhausting gaseous medium
    • B65H2406/12—Means using fluid made only for exhausting gaseous medium producing gas blast
    • B65H2406/121—Fan
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2406/00—Means using fluid
    • B65H2406/10—Means using fluid made only for exhausting gaseous medium
    • B65H2406/12—Means using fluid made only for exhausting gaseous medium producing gas blast
    • B65H2406/122—Nozzles

Definitions

  • the invention relates to the formation of the loosening blower for sheet feeders of sheet-fed rotary printing presses, which are adjustable in height on the frame of the sheet feeder behind and to the side of the sheet stack and are adjustable in terms of the blowing power.
  • Loosening blowers are known from height-adjustable nozzles on the suction head of a sheet feeder in addition to blowers for carrying air during transport of the upper sheet lifted from the stack at the height of the upper sheets of a sheet stack and supplied with blown air from a rotary compressor of the standard air system for supplying the suction head with suction air and blown air. Accordingly, air is supplied to the nozzles of the loosening blowers at the pressure required for the operation of the suction head and a correspondingly high flow rate.
  • the object of the invention is to improve the loosening of the sheet stack and the paper run in the feeder, especially in the case of thinner paper from the pallet, foils and the like, by means of loosening blowers which can be individually regulated and individually directed onto the sheet stack independently of the air supply system of the machine.
  • the invention solves this problem by means of training features according to claim 1.
  • Fans are independent of the machine's standard air system because each fan has its own paddle wheel with an independent drive by an electric motor. Fans can therefore be regulated independently of each other in the blown air and can be directed individually with their blown air flow at different angles against the side surfaces of the sheet stack. The number of fans provided is independent of the standard air supply and can therefore be increased as required.
  • the arrangement of the fans is advantageous not only on the rear edge of the sheet stack in the sheet feeder, but also on the two sides of the sheet stack.
  • the upper ones can be adjusted approximately at the level of the air blowers at the rear edge of the sheet stack and blow additional air from the sides under the upper sheet lifted off the stack when it is being transported in the feeder. This leads to Especially with thin paper, foils and comparable substrates for increased security in the paper flow.
  • the number of fans to be arranged on the rear edge and the two sides of the sheet stack perpendicular to it, their blowing direction and their blowing power are adapted to the respective printing material.
  • the fans can not only be arranged next to one another, but also one above the other in height and blow air against the sheet stack in order to improve the pre-loosening effect, in particular in the case of pallet stacks. By pre-loosening the stack in deeper areas, the processing of statically charged papers can also be facilitated.
  • the pre-loosening can also be controlled cyclically by a valve.
  • a pivoting possibly also in the work cycle of the machine, can be provided by a motor, for example with a controlled electrical or pneumatic drive.
  • each fan can have a tubular attachment nozzle made of an elastic material, one end of which is firmly connected to the fan housing and the other end of which forms a nozzle cross section which is adjustable in size and in its position relative to the fan axis.
  • This attachment nozzle can be formed from an elastically deformable hose and protrude with the free end into a clamping device which can be rotated about the fan axis and is adjustable to regulate the nozzle cross section. This creates a slot for the air outlet of the fan, the slot being rotatable about the blowing direction.
  • the clamping device enables the slot to be enlarged or reduced to regulate the emerging air speed in addition to the regulation by Change in fan speed.
  • the air flow can be directed at any angle against the side surface of the sheet stack.
  • the air flow can be directed obliquely upwards from the bottom or from the back to the front in the running direction of the arch.
  • several fans can be arranged on a common carrier, which is adjustably attached to guides of the sheet feeder frame.
  • the adjustment of the fan power can be programmed in accordance with the needs of certain user groups, for example label printers, plastic printers, etc., and carried out by a common adjusting element, combinations of such programs with program adjustments of the entire printing machine being possible.
  • FIGS. 1 and 2 show in FIGS. 1 and 2 the arrangement of a plurality of fans 1 as loosening blowers on the rear edge of a sheet stack 2 and on the two sides running perpendicular thereto.
  • a plurality of fans 1 are arranged next to one another and optionally also one above the other both on the rear edge of the sheet stack 2 and on its sides. Above all on the rear edge of the sheet stack, the arrangement of several fans one above the other can lead to a considerable improvement in the pre-loosening of the sheet stack 2 on the stacking table of the feeder.
  • guides 4 are provided on the frame 3 of the feeder, on which the fans 1 are fastened with supports 5 in an individually adjustable manner. The arrows shown in FIGS.
  • FIGS. 1 and 2 illustrate the individual adjustability of the fans 1 in height, width and around the horizontal axis of the fans 1.
  • the fans arranged laterally next to the sheet stack 2 are also about a vertical and a horizontal axis adjustable to direct the air flow of the fans to support the air in the direction of the sheet transport of the upper sheet.
  • the suction head 6 with the suction cups 7 and the suction cups 8 is shown schematically in FIGS. 1 and 2.
  • Each fan consists of a paddle wheel 9 with an independent electromotive drive 10 in a housing 11, which is advantageously closed on the suction side by a dust filter 12.
  • a housing 11 tubular attachment nozzle 13 around the fan axis 14 tight, but rotatable, connected.
  • the attachment nozzle 13 consists of a hose made of an elastic material, one end of which is connected with a seal to the connecting part 15 on the housing 11 and the other end of which engages in a clamping device 16 composed of two clamping strips 17 and 18, which are attached to the thread by a clamping screw 19 screwable wing nut 20 engages.
  • the cross-section of the hose of the attachment nozzle 13 which is round in the open state, can be reduced to a flatly squeezed opening cross-section according to FIG. 5 and possibly closed.
  • the rotatable mounting of the connecting part 15 with the attachment nozzle 13 allows the setting of a flat air flow at a certain angle of rotation to the axis 14 of the fan against the sheet stack.
  • FIGS 3 to 5 show only schematically an embodiment for controlling the air flow from the fan.
  • Other control elements for the air flow from a fan are known and can also be used.

Description

Die Erfindung betrifft die Ausbildung der Lockerungsbläser für Bogenanleger von Bogenrotationsdruckmaschinen, die am Gestell des Bogenanlegers hinter und seitlich neben dem Bogenstapel in der Höhe verstellbar und in der Blasleistung regulierbar angeordnet sind. Bekannt sind Lockerungsbläser aus höhenverstellbar am Saugkopf eines Bogenanlegers neben Bläsern für Tragluft beim Transport des oberen, vom Stapel abgehobenen Bogens in Höhe der oberen Bogen eines Bogenstapels angeordneten und mit Blasluft aus einem Rotationskompressor des Standardluftsystems für die Versorgung des Saugkopfes mit Saugluft und Blasluft versorgten Düsen. Dementsprechend wird den Düsen der Lockerungsbläser Luft mit dem für den Betrieb des Saugkopfes erforderlichen Druck und entsprechend hoher Strömungsgeschwindigkeit zugeführt. Dadurch entstehen Unsicherheiten im Papierlauf des Anlegers, vor allem bei dünnen Papieren, Folien, statisch aufgeladenem Papier und anderen Bedruckstoffen mit vergleichbaren Eigenschaften von der Palette. Lockerungsbläser bekannter Ausbildung aus Düsen, die mit Luft aus dem Standardluftsystem des Saugkopfes versorgt werden, sind aus der Druckschrift "Anlage und Anleger", Heidelberger Nachrichten 4/36, Seiten 7 und 8, der Firma HEIDELBERGER DRUCKMASCHINEN AG, 6900 Heidelberg, beschrieben. Diese Druckschrift zeigt Lockerungsbläser, die in einer horizontalen Reihe nebeneinander in Höhe der oberen Bogen eines Bogenstapels gemeinsam höhenverstellbar angeordnet und gemeinsam an die Standardluftversorgung des Saugkopfes angeschlossen sind. Es wird dadurch eine Auflockerung der oberen 6 bis 10 Bogen des Bogenstapels erreicht. Die bekannten Düsen sind nicht verstellbar und können nur komplett ausgetauscht werden. Da das Standardluftsystem des Saugkopfes auf die optimale Funktion der Sauger und der Tragluftdüsen ausgelegt ist, können zusätzliche Lockerungsbläser nicht vorgesehen werden.The invention relates to the formation of the loosening blower for sheet feeders of sheet-fed rotary printing presses, which are adjustable in height on the frame of the sheet feeder behind and to the side of the sheet stack and are adjustable in terms of the blowing power. Loosening blowers are known from height-adjustable nozzles on the suction head of a sheet feeder in addition to blowers for carrying air during transport of the upper sheet lifted from the stack at the height of the upper sheets of a sheet stack and supplied with blown air from a rotary compressor of the standard air system for supplying the suction head with suction air and blown air. Accordingly, air is supplied to the nozzles of the loosening blowers at the pressure required for the operation of the suction head and a correspondingly high flow rate. This creates uncertainties in the paper flow of the investor, especially with thin papers, foils, statically charged paper and other substrates with comparable properties from the pallet. Loosening blowers of known design from nozzles, which are supplied with air from the standard air system of the suction head, are described in the publication "System and Investor", Heidelberger Nachrichten 4/36, pages 7 and 8, from HEIDELBERGER DRUCKMASCHINEN AG, 6900 Heidelberg. This publication shows loosening blowers, which are arranged in a horizontal row next to one another at the height of the upper sheets of a sheet stack, and are connected to the standard air supply of the suction head. This will loosen the upper 6 to 10 sheets of the Sheet stack reached. The known nozzles are not adjustable and can only be replaced completely. Since the standard air system of the suction head is designed for the optimal function of the suction cups and the air nozzles, additional loosening blowers cannot be provided.

Aufgabe der Erfindung ist es, eine Verbesserung der Auflockerung des Bogenstapels und des Papierlaufes im Anleger, vor allem bei dünnerem Papier von der Palette, Folien und dergleichen, durch unabhängig vom Luftversorgungssystem der Maschine individuell regelbare und individuell auf den Bogenstapel richtbare Lockerungsbläser zu erreichen.The object of the invention is to improve the loosening of the sheet stack and the paper run in the feeder, especially in the case of thinner paper from the pallet, foils and the like, by means of loosening blowers which can be individually regulated and individually directed onto the sheet stack independently of the air supply system of the machine.

Diese Aufgabe löst die Erfindung durch Ausbildungsmerkmale nach dem Patentanspruch 1.The invention solves this problem by means of training features according to claim 1.

Ventilatoren sind vom Standardluftsystem der Maschine unabhängig, weil jeder Ventilator ein eigenes Schaufelrad mit eigenständigem Antrieb durch einen Elektromotor aufweist. Ventilatoren können daher unabhängig voneinander in der Blasluft geregelt werden und sind individuell mit ihrem Blasluftstrom in unterschiedlichen Winkellagen gegen die Seitenflächen des Bogen stapels richtbar. Die Zahl der vorgesehenen Ventilatoren ist von der Standardluftversorgung unabhängig und kann daher beliebig vermehrt werden.Fans are independent of the machine's standard air system because each fan has its own paddle wheel with an independent drive by an electric motor. Fans can therefore be regulated independently of each other in the blown air and can be directed individually with their blown air flow at different angles against the side surfaces of the sheet stack. The number of fans provided is independent of the standard air supply and can therefore be increased as required.

Vorteilhaft ist die Anordnung der Ventilatoren nicht nur an der Hinterkante des Bogenstapels im Bogenanleger, sondern auch an den beiden Seiten des Bogenstapels. Von den seitlich neben dem Bogenstapel vorgesehenen Ventilatoren können die oberen etwa in Höhe der Tragluftbläser an der Hinterkante des Bogenstapels justiert werden und von den Seiten her zusätzlich Tragluft unter den oberen, vom Stapel abgehobenen Bogen bei seinem Transport im Anleger blasen. Dies führt insbesondere bei dünnem Papier, Folien und vergleichbaren Bedruckstoffen zu einer vermehrten Sicherheit im Papierlauf.The arrangement of the fans is advantageous not only on the rear edge of the sheet stack in the sheet feeder, but also on the two sides of the sheet stack. Of the fans provided on the side next to the sheet stack, the upper ones can be adjusted approximately at the level of the air blowers at the rear edge of the sheet stack and blow additional air from the sides under the upper sheet lifted off the stack when it is being transported in the feeder. this leads to Especially with thin paper, foils and comparable substrates for increased security in the paper flow.

Die Zahl der an der Hinterkante und den beiden dazu rechtwinkligen Seiten des Bogenstapels anzuordnenden Ventilatoren, ihre Blasrichtung und ihre Blasleistung werden dem jeweiligen Bedruckstoff angepaßt. Dabei können die Ventilatoren nicht nur nebeneinander, sondern auch in der Höhe übereinander angeordnet sein und Luft gegen den Bogenstapel blasen, um dadurch die Vorlockerungswirkung, insbesondere bei Palettenstapeln, zu verbessern. Durch die Vorlockerung des Stapels in tieferen Bereichen kann auch die Verarbeitung statisch aufgeladener Papiere erleichtert werden.The number of fans to be arranged on the rear edge and the two sides of the sheet stack perpendicular to it, their blowing direction and their blowing power are adapted to the respective printing material. The fans can not only be arranged next to one another, but also one above the other in height and blow air against the sheet stack in order to improve the pre-loosening effect, in particular in the case of pallet stacks. By pre-loosening the stack in deeper areas, the processing of statically charged papers can also be facilitated.

Die Vorlockerung kann auch durch ein Ventil taktweise gesteuert werden. Eine Verschwenkung, eventuell ebenfalls im Arbeitstakt der Maschine, kann motorisch, zum Beispiel mit einem gesteuerten elektrischen oder pneumatischen Antrieb, vorgesehen sein.The pre-loosening can also be controlled cyclically by a valve. A pivoting, possibly also in the work cycle of the machine, can be provided by a motor, for example with a controlled electrical or pneumatic drive.

Zum Zwecke der Regelung kann jeder Ventilator eine schlauchförmige Vorsatzdüse aus einem elastischen Werkstoff aufweisen, deren eines Ende mit dem Ventilatorgehäuse fest verbunden ist und deren anderes Ende einen Düsenquerschnitt bildet, der in der Größe und in seiner Lage zur Ventilatorachse verstellbar ist. Diese Vorsatzdüse kann aus einem elastisch verformbaren Schlauch gebildet sein und mit dem freien Ende in eine Klemmvorrichtung hineinragen, die um die Ventilatorachse verdrehbar und zur Regulierung des Düsenquerschnitts verstellbar ist. Dadurch wird eine Schlitzausbildung für den Luftaustritt des Ventilators erreicht, wobei der Schlitz um die Blasrichtung verdrehbar ist. Die Klemmvorrichtung ermöglicht eine Vergrößerung bzw. Verkleinerung des Schlitzes zur Regelung der austretenden Luftgeschwindigkeit in Ergänzung zu der Regelung durch Änderung der Ventilatordrehzahl. Auf diese Weise kann der Luftstrom unter einem beliebigen Winkel gegen die Seitenfläche des Bogenstapels gerichtet werden. In Verbindung mit einer individuell einstellbaren Aufhängung des Ventilators kann der Luftstrom zum Beispiel von unten schräg nach oben oder in Laufrichtung des Bogens von hinten nach vorn gerichtet werden. Zur Erleichterung der Einstellung können mehrere Ventilatoren auf einem gemeinsamen Träger angeordnet sein, der an Führungen des Bogenanlegergestells verstellbar befestigt ist.For the purpose of regulation, each fan can have a tubular attachment nozzle made of an elastic material, one end of which is firmly connected to the fan housing and the other end of which forms a nozzle cross section which is adjustable in size and in its position relative to the fan axis. This attachment nozzle can be formed from an elastically deformable hose and protrude with the free end into a clamping device which can be rotated about the fan axis and is adjustable to regulate the nozzle cross section. This creates a slot for the air outlet of the fan, the slot being rotatable about the blowing direction. The clamping device enables the slot to be enlarged or reduced to regulate the emerging air speed in addition to the regulation by Change in fan speed. In this way, the air flow can be directed at any angle against the side surface of the sheet stack. In connection with an individually adjustable suspension of the fan, the air flow can be directed obliquely upwards from the bottom or from the back to the front in the running direction of the arch. To facilitate the setting, several fans can be arranged on a common carrier, which is adjustably attached to guides of the sheet feeder frame.

Die Verstellung der Ventilatorleistungen kann in Anpassung an Bedürfnisse bestimmter Verwendergruppen, zum Beispiel Etikettendruckereien, Kunststoffdruckereien usw., programmiert und durch ein gemeinsames Verstellorgan vorgenommen werden, wobei Kombinationen solcher Programme mit Programmverstellungen der gesamten Druckmaschine möglich sind.The adjustment of the fan power can be programmed in accordance with the needs of certain user groups, for example label printers, plastic printers, etc., and carried out by a common adjusting element, combinations of such programs with program adjustments of the entire printing machine being possible.

An sich ist die Anwendung von Ventilatoren bei Bogenrotationsdruckmaschinen bekannt, jedoch wurden Ventilatoren bisher nur benutzt, um den bedruckten Bogen in der Auslage auf den Stapel herunterzudrücken.The use of fans in sheet-fed rotary printing machines is known per se, but fans have hitherto only been used to press the printed sheet onto the stack in the delivery.

Die Zeichnung zeigt schematisch ein Ausführungsbeispiel der Erfindungsmerkmale. Es zeigen:

Figur 1
eine Seitenansicht eines Bogenstapels in einem aus Gründen der besseren Übersicht nur teilweise dargestellten Gestell eines Bogenanlegers,
Figur 2
eine Draufsicht der Darstellung entsprechend Figur 1,
Figur 3
einen vergrößerten Längsschnitt durch einen Ventilator mit regelbarer Vorsatzdüse,
Figur 4
eine Draufsicht auf die Vorsatzdüse mit Klemmvorrichtung im offenen Zustand und
Figur 5
eine Draufsicht entsprechend Figur 4 im teilweise geschlossenen Zustand.
The drawing shows schematically an embodiment of the features of the invention. Show it:
Figure 1
2 shows a side view of a sheet stack in a frame of a sheet feeder, which is only partially shown for reasons of better clarity,
Figure 2
2 shows a top view of the representation corresponding to FIG. 1,
Figure 3
an enlarged longitudinal section through a fan with adjustable front nozzle,
Figure 4
a plan view of the front nozzle with clamping device in the open state and
Figure 5
a plan view corresponding to Figure 4 in the partially closed state.

Die Zeichnung zeigt in den Figuren 1 und 2 die Anordnung mehrerer Ventilatoren 1 als Lockerungsbläser an der Hinterkante eines Bogenstapels 2 und an den beiden dazu senkrecht verlaufenden Seiten. Mehrere Ventilatoren 1 sind sowohl an der Hinterkante des Bogenstapels 2 als auch an dessen Seiten nebeneinander und gegebenenfalls auch übereinander angeordnet. Vor allem an der Hinterkante des Bogenstapels kann die Anordnung mehrerer Ventilatoren übereinander zu einer erheblichen Verbesserung der Vorlockerung des Bogenstapels 2 auf dem Stapeltisch des Anlegers führen. Zur Halterung der Ventilatoren 1 sind an dem Gestell 3 des Anlegers Führungen 4 vorgesehen, an denen die Ventilatoren 1 mit Trägern 5 individuell einstellbar befestigt sind. Die in den Figuren 1 und 2 dargestellten Pfeile verdeutlichen die individuelle Einstellbarkeit der Ventilatoren 1 in der Höhe, in der Breite und um die horizontale Achse der Ventilatoren 1. Die seitlich neben dem Bogenstapel 2 angeordneten Ventilatoren sind außerdem um eine vertikale und um eine horizontale Achse einstellbar, um den Luftstrom der Ventilatoren zur Unterstützung der Tragluft in Richtung des Bogentransports des oberen Bogens zu lenken. Schematisch ist in den Figuren 1 und 2 der Saugkopf 6 mit den Schleppsaugern 7 und den Hubsaugern 8 dargestellt.The drawing shows in FIGS. 1 and 2 the arrangement of a plurality of fans 1 as loosening blowers on the rear edge of a sheet stack 2 and on the two sides running perpendicular thereto. A plurality of fans 1 are arranged next to one another and optionally also one above the other both on the rear edge of the sheet stack 2 and on its sides. Above all on the rear edge of the sheet stack, the arrangement of several fans one above the other can lead to a considerable improvement in the pre-loosening of the sheet stack 2 on the stacking table of the feeder. To hold the fans 1, guides 4 are provided on the frame 3 of the feeder, on which the fans 1 are fastened with supports 5 in an individually adjustable manner. The arrows shown in FIGS. 1 and 2 illustrate the individual adjustability of the fans 1 in height, width and around the horizontal axis of the fans 1. The fans arranged laterally next to the sheet stack 2 are also about a vertical and a horizontal axis adjustable to direct the air flow of the fans to support the air in the direction of the sheet transport of the upper sheet. The suction head 6 with the suction cups 7 and the suction cups 8 is shown schematically in FIGS. 1 and 2.

Jeder Ventilator besteht aus einem Schaufelrad 9 mit einem eigenständigen elektromotorischen Antrieb 10 in einem Gehäuse 11, welches auf der Ansaugseite vorteilhaft durch ein Staubfilter 12 verschlossen ist. Auf der gegenüberliegenden Seite ist mit dem Gehäuse 11 eine schlauchförmige Vorsatzdüse 13 um die Ventilatorachse 14 dicht, jedoch drehbar, verbunden. Die Vorsatzdüse 13 besteht aus einem Schlauch eines elastischen Werkstoffes, dessen eines Ende unter Abdichtung mit dem Verbindungsteil 15 am Gehäuse 11 verbunden ist und deren anderes Ende in eine Klemmvorrichtung 16 aus zwei Klemmleisten 17 und 18 eingreift, die durch eine Spannschraube 19 mit auf deren Gewinde verschraubbarer Flügelmutter 20 eingreift. Durch diese Klemmvorrichtung 16 kann der im offenen Zustand runde Querschnitt des Schlauches der Vorsatzdüse 13 auf einen flach zusammengequetschten Öffnungsquerschnitt entsprechend Figur 5 verringert und gegebenenfalls geschlossen werden. Die drehbare Halterung des Verbindungsteiles 15 mit der Vorsatzdüse 13 ermöglicht die Einstellung eines flachen Luftstroms in einem bestimmten Drehwinkel zur Achse 14 des Ventilators gegen den Bogenstapel.Each fan consists of a paddle wheel 9 with an independent electromotive drive 10 in a housing 11, which is advantageously closed on the suction side by a dust filter 12. On the opposite side is with the housing 11 tubular attachment nozzle 13 around the fan axis 14 tight, but rotatable, connected. The attachment nozzle 13 consists of a hose made of an elastic material, one end of which is connected with a seal to the connecting part 15 on the housing 11 and the other end of which engages in a clamping device 16 composed of two clamping strips 17 and 18, which are attached to the thread by a clamping screw 19 screwable wing nut 20 engages. By means of this clamping device 16, the cross-section of the hose of the attachment nozzle 13, which is round in the open state, can be reduced to a flatly squeezed opening cross-section according to FIG. 5 and possibly closed. The rotatable mounting of the connecting part 15 with the attachment nozzle 13 allows the setting of a flat air flow at a certain angle of rotation to the axis 14 of the fan against the sheet stack.

Die Figuren 3 bis 5 zeigen lediglich schematisch ein Ausführungsbeispiel für die Regelung des Luftstromes aus dem Ventilator. Andere Regelglieder für den Luftstrom aus einem Ventilator sind bekannt und können ebenfalls zur Anwendung kommen.Figures 3 to 5 show only schematically an embodiment for controlling the air flow from the fan. Other control elements for the air flow from a fan are known and can also be used.

Claims (8)

  1. Loosening blowers for sheet feeders of sheet-fed rotary printing presses, said loosening blowers, height-adjustable and of controllable blowing power, being disposed on the frame of the sheet feeder behind and at the sides of the pile of sheets,
    characterized
    in that said loosening blowers consist of fans (1), the air stream of which, directed against a side face of the pile of sheets (2), is adjustable in angle with respect to said side face.
  2. Loosening blowers according to claim 1,
    characterized
    in that fans (1), height- and width-adjustable, are provided at the rear edge of the pile of sheets (2) in the sheet feeder and at the sides of the pile of sheets (2) extending perpendicularly to said rear edge.
  3. Loosening blowers according to claim 2,
    characterized
    in that fans (1), disposed at the sides of the pile of sheets (2) extending perpendicularly to the rear edge of the pile of sheets (2), are provided in the form of carrying-air blowers, said carrying-air blowers blowing, in addition to the carrying air from the carrying-air blowers at the rear edge of the pile of sheets (2), carrying air under the upper sheets as they are transported into the feeder.
  4. Loosening blowers according to any one of claims 1 to 3,
    characterized
    in that the fans (1) comprise an ancillary nozzle (13) made of an elastic material, the cross section of said front nozzle (13) being adjustable in size and in opposition with respect to the fan axis (14).
  5. Loosening blowers according to claim 4,
    characterized
    in that the ancillary nozzle (13) is formed from a tube and is disposed with its free end in a clamping device (16), said clamping device (16) being rotatable with the tube about the fan axis (14) and being adjustable in order to regulate the cross section of the nozzle.
  6. Loosening blowers according to any one of claims 1 to 5,
    characterized
    in that a plurality of fans (1) are disposed on a common carrier (5), said carrier (5) being adjustable on guides (4) of the sheet-feeder frame (3).
  7. Loosening blowers according to claim 6,
    characterized
    in that the fans (1) with their fan axis (14) are individually adjustable vertically and horizontally with respect to the face of the pile of sheet to which the air flow is directed.
  8. Loosening blowers according to any one of claims 1 to 7,
    characterized
    in that a plurality of fans (1) are disposed vertically one above the other.
EP89117084A 1988-10-10 1989-09-15 Blowing device for loosening sheets in the feeders of rotary printing machines Expired - Lifetime EP0364737B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3834400A DE3834400A1 (en) 1988-10-10 1988-10-10 LAXING BLOWERS FOR BOW FEEDERS OF BOW ROTARY PRINTING MACHINES
DE3834400 1988-10-10

Publications (3)

Publication Number Publication Date
EP0364737A2 EP0364737A2 (en) 1990-04-25
EP0364737A3 EP0364737A3 (en) 1991-02-20
EP0364737B1 true EP0364737B1 (en) 1993-08-11

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ID=6364748

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89117084A Expired - Lifetime EP0364737B1 (en) 1988-10-10 1989-09-15 Blowing device for loosening sheets in the feeders of rotary printing machines

Country Status (5)

Country Link
US (1) US5110110A (en)
EP (1) EP0364737B1 (en)
JP (1) JPH02144338A (en)
CN (1) CN1013758B (en)
DE (2) DE3834400A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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US8663313B2 (en) 2011-03-03 2014-03-04 Boston Scientific Scimed, Inc. Low strain high strength stent
US8790388B2 (en) 2011-03-03 2014-07-29 Boston Scientific Scimed, Inc. Stent with reduced profile

Families Citing this family (74)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9004710U1 (en) * 1990-04-25 1990-06-28 Mohr, Wolfgang, 6238 Hofheim, De
DE4013082A1 (en) * 1990-04-25 1991-10-31 Gremser Masch Franz Overlapping sheet stream feed - uses detector for sheet stack front edge to activate intermittent conveying device
DE4105967C2 (en) * 1990-04-27 1993-11-25 Heidelberger Druckmasch Ag Sheet feeder with blowing nozzles for generating air under the upper sheet lifted from the sheet stack
US5246220A (en) * 1990-12-14 1993-09-21 Fuji Photo Film Co., Ltd. Sheet feeding device
JPH0733191B2 (en) * 1991-08-23 1995-04-12 リョービ株式会社 Printer feeding device
US5228675A (en) * 1992-01-28 1993-07-20 Baumfolder Corporation Sheet separation pile feeder
DE4227409C1 (en) * 1992-08-19 1993-08-19 Man Roland Druckmaschinen Ag, 6050 Offenbach, De
DE4326927A1 (en) * 1993-08-11 1995-02-16 Heidelberger Druckmasch Ag Device for air control in sheet feeders of printing machines
US5372066A (en) * 1993-08-11 1994-12-13 Becmar Corp. Multiple feed cylinder press
US5836582A (en) * 1994-04-04 1998-11-17 Canon Kabushiki Kaisha Sheet feeding device with air injectors for separating sheets
US5722811A (en) * 1994-08-29 1998-03-03 Asomm, Inc. Method for separating a predetermined number of sheets from a stack of sheets
US5984622A (en) * 1994-08-29 1999-11-16 Asomm, Inc. Method and apparatus for separating a predetermined number of sheets from a stack of sheets
DE4434190C2 (en) * 1994-09-24 1997-05-28 Heidelberger Druckmasch Ag Sheet delivery on a sheet processing machine
DE59503065D1 (en) * 1994-11-28 1998-09-10 Elpatronic Ag Process for commissioning or retrofitting a frame welding machine and a modular magazine for carrying out the process
DE29503618U1 (en) * 1995-03-03 1995-04-20 Heidelberger Druckmasch Ag Loosening device
US6015144A (en) * 1997-04-18 2000-01-18 Fuji Xerox Co., Ltd. Sheet feeder and image forming apparatus
US6354585B1 (en) * 1999-06-04 2002-03-12 Ricoh Company, Ltd. Image forming apparatus and sheet feeder for the same
KR100317432B1 (en) * 1999-07-16 2001-12-22 김양평 A automatic supply device of adhesive an article for laminate
NL1013218C2 (en) * 1999-10-05 2001-04-06 Ocu Technologies B V Device for one sheet removal from the top of a stack of sheets.
US6629692B2 (en) * 2000-02-25 2003-10-07 Nexpress Solutions Llc Device for separating an uppermost sheet from a supply stack by means of air blowers
US6264188B1 (en) * 2000-06-12 2001-07-24 Xerox Corporation Sheet feeding apparatus having an adaptive air fluffer
US6450493B1 (en) * 2000-12-07 2002-09-17 Xerox Corporation Image transfer apparatus shuttle feeder module
AUPR292501A0 (en) * 2001-02-07 2001-03-01 Silverbrook Research Pty. Ltd. A method and apparatus (ART100)
AUPR315301A0 (en) * 2001-02-19 2001-03-15 Silverbrook Research Pty. Ltd. An Apparatus (ART102)
IL143894A0 (en) * 2001-06-20 2002-04-21 Apparatus and method for dispensing sheets
JP3592275B2 (en) * 2001-08-29 2004-11-24 コニカミノルタホールディングス株式会社 Paper feeder
JP2003165641A (en) * 2001-11-28 2003-06-10 Fuji Xerox Co Ltd Sheet feeder
US6746011B2 (en) * 2002-06-07 2004-06-08 Xerox Corporation Sheet separating and feeding with variable position stack edge fluffing
CN100462294C (en) * 2002-09-20 2009-02-18 佳能株式会社 Paper feeder and image forming device
US6955348B2 (en) * 2002-09-20 2005-10-18 Canon Kabushiki Kaisha Sheet feeder which separates sheets with variable speed and/or direction blown air and image forming apparatus using same
US6945525B2 (en) * 2002-11-25 2005-09-20 Xerox Corporation Sheet feeding apparatus having an adaptive air fluffer
US20050040584A1 (en) * 2003-08-19 2005-02-24 Canon Kabushiki Kaisha Sheet feeding apparatus and image forming apparatus
DE10356726A1 (en) * 2003-12-02 2005-06-30 Printfinish Gmbh Druckweiterverarbeitungsmaschinen Method and device for separating plano sheets from a stack of sheets or a bow scale
JP4281611B2 (en) * 2004-04-30 2009-06-17 富士ゼロックス株式会社 Paper feeder
US7161511B2 (en) * 2005-06-03 2007-01-09 General Electric Company Linearization system and method
US7451973B2 (en) * 2005-08-30 2008-11-18 Canon Kabushiki Kaisha Sheet feeding unit, sheet feeding apparatus, and image forming apparatus
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SE530791C2 (en) * 2007-01-18 2008-09-16 Plockmatic Int Ab Device for separating sheets of paper by blowing air
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US7976013B1 (en) 2008-02-22 2011-07-12 Young Ronald J Cyclically controlled paper feeder with optical stack level control
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US8800753B2 (en) 2009-09-10 2014-08-12 Bdt Media Automation Gmbh System for conveying an article using vortex suction units
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JP2019131383A (en) * 2018-02-01 2019-08-08 コニカミノルタ株式会社 Paper feeding device, image forming device, and image forming system
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JP7204284B2 (en) * 2018-11-22 2023-01-16 理想科学工業株式会社 Media feeder
JP7400197B2 (en) * 2019-03-22 2023-12-19 京セラドキュメントソリューションズ株式会社 Paper feeding device
CN115151497A (en) * 2020-04-26 2022-10-04 Abb瑞士股份有限公司 Device and method for separating objects
DE102020122815B4 (en) 2020-09-01 2023-06-15 Koenig & Bauer Ag Blowing device and feeder of a sheet processing machine with a blowing device

Family Cites Families (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE73315C (en) * KLE1M & forwerk in Leipzig-Plagwitz Pneumatic sheet feeding device
DE130691C (en) *
US1460314A (en) * 1922-05-06 1923-06-26 Deck Bert Separator for feeders
US1865012A (en) * 1931-09-09 1932-06-28 Alexander Nowak Adjustable nozzle tip
DE655405C (en) * 1934-05-08 1938-01-14 E H Georg Spiess Dr Ing Blow nozzle
US2594373A (en) * 1950-03-03 1952-04-29 Christensen Machine Co Sheet separator air blast nozzle
DE849845C (en) * 1951-02-11 1952-09-18 Mabeg Maschinen Bedarf G M B H Sheet separator on pneumatic sheet feeders for printing, folding, painting machines and the like. a.
DE1696324U (en) * 1955-01-12 1955-04-07 Mabeg Maschb G M B H PRE-BLOWERS.
DE1090687B (en) * 1959-03-07 1960-10-13 Mabeg Maschb G M B H Nachf Hen Blow air and sheet loosening device on sheet separating and conveying device for sheet feeders and other sheet processing machines
AT228550B (en) * 1961-08-02 1963-07-25 Friedrich Huemer Water jet nozzle for garden spraying and fire departments
DE1221244B (en) * 1964-02-11 1966-07-21 Leipziger Buchbindereimaschine Separating device for lifting and continuing the top sheet of a stack
DE1203801B (en) * 1964-04-25 1965-10-28 Telefunken Patent Device for separating mail items from a stack
US3785638A (en) * 1970-01-26 1974-01-15 Farah Mfg Co Inc Fabric pickup and transfer device
JPS5319849Y2 (en) * 1971-03-09 1978-05-26
GB1303215A (en) * 1971-04-19 1973-01-17
SE355554B (en) * 1971-08-24 1973-04-30 Galco Dux Ab
DE3534036A1 (en) * 1985-09-24 1987-03-26 Meyer Masch App Herbert Device for receiving flat work-pieces
JPS62140948A (en) * 1985-12-12 1987-06-24 Seiko Epson Corp Method for separating ic pallet
DE3609550A1 (en) * 1986-03-21 1987-10-01 Mabeg Maschinenbau Gmbh Nachf Device for preloosening
JPS63171724A (en) * 1986-12-27 1988-07-15 Konica Corp Recording sheet conveyor
JPH07108737B2 (en) * 1987-02-12 1995-11-22 富士写真フイルム株式会社 Device for separating and removing flexible work
DE3706058A1 (en) * 1987-02-25 1988-09-08 Heidelberger Druckmasch Ag FEEDER FOR A PRINTING MACHINE
JPS63242843A (en) * 1987-03-27 1988-10-07 Ricoh Co Ltd Air feed device for paper

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7988717B2 (en) 1995-03-01 2011-08-02 Boston Scientific Scimed, Inc. Longitudinally flexible expandable stent
US8663313B2 (en) 2011-03-03 2014-03-04 Boston Scientific Scimed, Inc. Low strain high strength stent
US8790388B2 (en) 2011-03-03 2014-07-29 Boston Scientific Scimed, Inc. Stent with reduced profile

Also Published As

Publication number Publication date
CN1013758B (en) 1991-09-04
DE3834400C2 (en) 1992-10-29
DE58905249D1 (en) 1993-09-16
EP0364737A2 (en) 1990-04-25
CN1041924A (en) 1990-05-09
JPH02144338A (en) 1990-06-04
EP0364737A3 (en) 1991-02-20
US5110110A (en) 1992-05-05
DE3834400A1 (en) 1990-04-19

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