EP0453810A2 - Device for locking the suction nozzle of suction separators at the suction head of a sheet feeder - Google Patents

Device for locking the suction nozzle of suction separators at the suction head of a sheet feeder Download PDF

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Publication number
EP0453810A2
EP0453810A2 EP91104985A EP91104985A EP0453810A2 EP 0453810 A2 EP0453810 A2 EP 0453810A2 EP 91104985 A EP91104985 A EP 91104985A EP 91104985 A EP91104985 A EP 91104985A EP 0453810 A2 EP0453810 A2 EP 0453810A2
Authority
EP
European Patent Office
Prior art keywords
suction
suction nozzle
foot
suction head
sheet
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP91104985A
Other languages
German (de)
French (fr)
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EP0453810B1 (en
EP0453810A3 (en
Inventor
Jochen Renner
Peter Sobotta
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.)
Heidelberger Druckmaschinen AG
Original Assignee
Heidelberger Druckmaschinen AG
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Publication date
Application filed by Heidelberger Druckmaschinen AG filed Critical Heidelberger Druckmaschinen AG
Publication of EP0453810A2 publication Critical patent/EP0453810A2/en
Publication of EP0453810A3 publication Critical patent/EP0453810A3/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H3/00—Separating articles from piles
    • B65H3/08—Separating articles from piles using pneumatic force
    • B65H3/0808—Suction grippers
    • B65H3/0816—Suction grippers separating from the top of pile
    • B65H3/0825—Suction grippers separating from the top of pile and acting on the rear 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
    • B65H3/00—Separating articles from piles
    • B65H3/08—Separating articles from piles using pneumatic force
    • B65H3/0808—Suction grippers
    • B65H3/0883—Construction of suction grippers or their holding devices

Definitions

  • the invention relates to a device for locking the suction nozzle of suction pads on the suction head of a sheet feeder according to the preamble of claim 1.
  • Such a device is known from DE-PS 23 09 013. It is used when so-called jumping vacuums are used as separating suction devices and special drive means for the lifting movement of the separating suction device are dispensed with.
  • a lever pivotally mounted about a horizontal axis is provided on the suction head, said lever having a cam roller interacting with a control cam and at its free end a cross bar holding the separating nozzles.
  • the support is formed by rollers which are supported at the ends of the crossbar and which interact with flanges which extend horizontally at the suction nozzles of the separating suction devices.
  • the means for locking the suction nozzle of the separating suction device thus have a separate drive with its own control curve, through which the suction nozzle of the separating suction device is forcibly guided downward when the rear edge of the sheet conveyed into the feeder has left the area of the suction nozzle of the separating suction device.
  • a device for locking the suction nozzle of a vibrating movement separating suction device on the suction head of a sheet feeder in which a pawl in the form of a double lever is pivotally mounted on the separating suction device, one arm of which is an abutment for a nose on the suction nozzle has and the other arm cooperates with a stop that on a stack button is arranged.
  • the separating suction device is designed as a jumping suction device, so that the suction nozzle jumps up in its rear swivel position in the stack of sheets after the uppermost sheet has been sucked in, whereupon the abutment of the pawl engages behind the nose on the suction nozzle and holds it in the upper position until the in the Feeder-fed sheets have left the area of the now ventilated suction nozzle with its rear edge.
  • the stop arranged on the pushbutton releases the lock, so that the suction nozzle falls down.
  • the object of the invention is to provide a locking device for a separating suction device designed as a jumping suction device in the upper end position with a forced release of the suction nozzle in a suction head in the suction stroke of the machine with a touch foot resting on the rear edge of the sheet stack.
  • the counter bearing for the support on the suction nozzle is formed on a link body which is mounted on the axis of a toggle joint between drive members for the movement of the feeler foot and at a fixed point of the suction head is rotatable and tangential to the axis of the toggle joint linear is slidably guided.
  • Embodiments of the invention are shown schematically in the drawing.
  • the exemplary embodiments show a suction head in which a feeler foot 1 can be placed on the trailing edge of the uppermost sheet 2 in the sheet stack 3 in the work cycle of the machine and can be pivoted back into a raised end position.
  • the feeler foot 1 is articulated on the one hand with the free end of one arm 4a of a double lever 4 and on the other hand on a guide lever 5, both of which are pivotably mounted about axes 6 and 7 extending transversely to the conveying direction on the housing 8 of the suction head, these levers being so one on top of the other are coordinated that the feeler foot 1 swings back and forth again from the position shown with full lines to the position shown with dash-dotted lines.
  • the other arm 4b of the double lever 4 is articulated to one end of a coupling 9, the other end of which is articulated to a roller lever 10, one end of which is articulated on the housing 8 and which carries a cam roller 11, which by means of a at the other end of the roller lever 10 engaging spring 12 is pressed against the circumference of a driven cam 13.
  • This cam 13 thus controls the movement of the feeler 1 in the working cycle of the suction head.
  • a link body 15 can be pivoted, which with a fork-shaped link 16 onto the blow pipe 17, which is fixedly arranged on the housing 8, for the supply of blowing air to loosening fans or the like is pushed on, so that this link body 15, 16 is moved synchronously with the feeler 1 from the position shown in full lines in FIG. 1 to the position shown in broken lines and back.
  • the separating suction device 18 is designed as a jumping suction device and is attached to the housing 8.
  • the lower part of this jumping suction device with the suction nozzle 19 falls at atmospheric internal pressure due to its own weight and possibly with the support of an inner spring 20 (FIG. 2) into the lower end position, so that the suction nozzle rests on the uppermost sheet 2 in the sheet stack 3.
  • an inner spring 20 FIG. 2
  • the suction nozzle 19 jumps into the upper end position and lifts the rear end of the uppermost sheet 2 from the sheet stack 3.
  • the feeler is swiveled back to the rear position indicated by a dash-dotted line. Now, vacuum cleaners not shown in the drawing take over the lifted sheet 2 and transport it towards the feeder.
  • the tactile foot 1 returns the position shown in full line back, the link body 15 is pivoted into the position shown in full line.
  • a counter bearing 20 fastened to the link body 15 engages under a support 21 which is arranged on the side of the suction nozzle 19. Characterized the suction nozzle 19 is locked in the upper position so that it does not fall back into the lower position when the vacuum in the suction nozzle is released.
  • the feeler foot 1 is pivoted into the position drawn with a full line.
  • the feeler foot 1 swings back into the position shown with a dash-dotted line, and at the same time the link body 15 with the counter-bearing 20 attached to it releases the support 21 on the suction nozzle 19, so that it also falls back into the lower end position shown with a dash-dotted line and for lifting of the next sheet from sheet stack 3 can be subjected to negative pressure again.
  • FIG. 2 illustrates the arrangement of a pair of separating suction cups, which can be arranged symmetrically to the central longitudinal plane of the machine at a distance from one another.
  • This figure also shows conventional guide springs 22 which secure the suction nozzles of the separating suction devices against rotation and mark the lower end position for the suction nozzle.
  • the arrangement of the tactile foot 1 and the means of the drive for the tactile foot 1 correspond to the description of the exemplary embodiment in FIGS. 1 and 2.
  • a position is provided as a counter bearing for the support 21, a leaf spring 23 which is fastened to a sheet metal 24 which is located on the housing 8 of the suction head next to the separating suction device 18 extends downward.
  • a nose-shaped profile of the leaf spring 23 in the side view passes through a recess in the plate 24 and forms the counter bearing for the support on the suction nozzle 19 of the separating suction device 18.
  • the engagement position of the counter bearing and the support shown in full line on the drawing corresponds to the relaxed state of the leaf spring 23.
  • a release lever 25 is provided which engages with one end in the design profile of the leaf spring 23 and is attached at the other end to a pivot shaft 26 which is connected to the roller lever 10 via a pivot lever 27 and a coupling plate 28 .
  • the leaf spring is relieved, so that it returns to a waiting position for the locking to take effect.
  • the profiling of the leaf spring 23 has an oblique sliding surface, so that the support 21 can move past the leaf spring 23 past the latter into the upper end position of the suction nozzle 19 with elastic deformation.
  • the swivel shaft 26 is mounted in a tube 29 which is firmly connected to the housing 8 of the suction head at one or more points and has slot-shaped recesses on the circumference which differ from that with the swivel shaft 26 connected pivot lever 27 is penetrated.

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

Abstract

Device for locking a suction nozzle of a separating sucker on a suction head of a sheet feeder of a sheet-processing machine, the suction head having at least one governor foot, a drive device for moving the governor foot in accordance with a working cycle of the feeder, and a device for vertically moving the nozzle of the separating sucker, includes a bearing support laterally disposed on the suction nozzle, a movably arranged abutment device for supporting the bearing support, when the suction nozzle is in a lifted position, until a trailing edge of a sheet supplied to the feeder has left the vicinity of the suction nozzle of the separating sucker, and a linkage connecting the abutment device articulatingly to the drive device for the governor foot for moving the abutment in accordance with a working cycle of the suction head.

Description

Die Erfindung bezieht sich auf eine Vorrichtung zur Arretierung der Saugdüse von Trennsaugern am Saugkopf eines Bogenanlegers nach dem Oberbegriff des Patentanspruches 1.The invention relates to a device for locking the suction nozzle of suction pads on the suction head of a sheet feeder according to the preamble of claim 1.

Eine solche Vorrichtung ist aus der DE-PS 23 09 013 bekannt. Sie findet Anwendung, wenn als Trennsauger sogenannte Springsauger zur Anwendung kommen und auf besondere Antriebsmittel für die Hubbewegung des Trennsaugers verzichtet wird. Bei der bekannten Anordnung ist am Saugkopf ein um eine waagerechte Achse schwenkbar gelagerter Hebel vorgesehen, der eine mit einer Steuerkurve zusammenwirkende Kurvenrolle und an seinem freien Ende eine die Trenndüsen hochhaltende Querstange aufweist. Das Auflager bilden Rollen, die an den Enden der Querstange gelagert sind, und die mit Flanschen zusammenwirken, die sich horizontal an den Saugdüsen der Trennsauger erstrecken. Die Mittel zur Arretierung der Saugdüse des Trennsaugers weisen somit einen gesonderten Antrieb mit eigener Steuerkurve auf, durch die die Saugdüse des Trennsaugers zwangsweise nach unten geführt wird, wenn die Hinterkante des in den Anleger geförderten Bogens den Bereich der Saugdüse des Trennsaugers verlassen hat.Such a device is known from DE-PS 23 09 013. It is used when so-called jumping vacuums are used as separating suction devices and special drive means for the lifting movement of the separating suction device are dispensed with. In the known arrangement, a lever pivotally mounted about a horizontal axis is provided on the suction head, said lever having a cam roller interacting with a control cam and at its free end a cross bar holding the separating nozzles. The support is formed by rollers which are supported at the ends of the crossbar and which interact with flanges which extend horizontally at the suction nozzles of the separating suction devices. The means for locking the suction nozzle of the separating suction device thus have a separate drive with its own control curve, through which the suction nozzle of the separating suction device is forcibly guided downward when the rear edge of the sheet conveyed into the feeder has left the area of the suction nozzle of the separating suction device.

Aus der DE-PS 891 267 ist eine Vorrichtung zur Arretierung der Saugdüse eines schwingende Bewegungen ausführenden Trennsaugers am Saugkopf eines Bogenanlegers bekannt, bei dem am Trennsauger eine Sperrklinke in Form eines Doppelhebels schwenkbar gelagert ist, deren einer Arm ein Widerlager für eine Nase an der Saugdüse aufweist und deren anderer Arm mit einem Anschlag zusammenwirkt, der an
einem Stapeltaster angeordnet ist. Der Trennsauger ist als Springsauger ausgeführt, so daß die Saugdüse nach dem Ansaugen des obersten Bogens im Bogenstapel in ihrer hinteren Schwenkposition nach oben springt, worauf das Widerlager der Sperrklinke die Nase an der Saugdüse hintergreift und diese in der oberen Position festhält, bis der in den Anleger geförderte Bogen mit seiner Hinterkante den Bereich der inzwischen belüfteten Saugdüse verlassen hat. Bei der Rückkehr des sich mit der Saugdüse auf einer Bogenbahn schwingend bewegenden Trennsaugers in die hintere Endposition löst der an dem Taster angeordnete Anschlag die Verriegelung, so daß die Saugdüse nach unten fällt.From DE-PS 891 267 a device for locking the suction nozzle of a vibrating movement separating suction device on the suction head of a sheet feeder is known, in which a pawl in the form of a double lever is pivotally mounted on the separating suction device, one arm of which is an abutment for a nose on the suction nozzle has and the other arm cooperates with a stop that on
a stack button is arranged. The separating suction device is designed as a jumping suction device, so that the suction nozzle jumps up in its rear swivel position in the stack of sheets after the uppermost sheet has been sucked in, whereupon the abutment of the pawl engages behind the nose on the suction nozzle and holds it in the upper position until the in the Feeder-fed sheets have left the area of the now ventilated suction nozzle with its rear edge. When the separating suction device, which swings with the suction nozzle on a curved path, returns to the rear end position, the stop arranged on the pushbutton releases the lock, so that the suction nozzle falls down.

Aufgabe der Erfindung ist die Ausbildung einer Arretierung für einen als Springsauger ausgebildeten Trennsauger in der oberen Endstellung mit einer im Arbeitstakt der Maschine zwangsweise gesteuerter Freigabe der Saugdüse in einem Saugkopf mit einem sich auf die Hinterkante des Bogenstapels aufsetzenden Tastfuß.The object of the invention is to provide a locking device for a separating suction device designed as a jumping suction device in the upper end position with a forced release of the suction nozzle in a suction head in the suction stroke of the machine with a touch foot resting on the rear edge of the sheet stack.

Gelöst wird diese Aufgabe durch Ausbildungsmerkmale nach dem Kennzeichen des Patentanspruches 1.This problem is solved by training features according to the characterizing part of patent claim 1.

Zur konstruktiven Gestaltung ist vorgesehen, daß das Gegenlager für das Auflager an der Saugdüse an einem Kulissenkörper ausgebildet ist, der auf der Achse eines Kniehebelgelenkes zwischen Antriebsgliedern für die Bewegung des Tastfußes gelagert ist und an einem Festpunkt des Saugkopfes drehbeweglich und tangential zur Achse des Kniehebelgelenkes linear verschieblich geführt ist.For constructive design, it is provided that the counter bearing for the support on the suction nozzle is formed on a link body which is mounted on the axis of a toggle joint between drive members for the movement of the feeler foot and at a fixed point of the suction head is rotatable and tangential to the axis of the toggle joint linear is slidably guided.

Bei einer solchen Ausbildung ist kein zusätzlicher Antrieb und ist auch keine zusätzliche Steuerung für die Arretierung des Trennsaugers in der angehobenen Position erforderlich. Das Gegenlager wird zwangsläufig gemeinsam mit dem Tastfuß bewegt und das Auflager an der Saugdüse erst freigegeben, wenn der folgende Bogen vom Stapel abgehoben werden soll. Die Saugdüse des Trennsaugers fällt dann durch ihr Eigengewicht und gegebenenfalls mit Unterstützung durch Federkraft nach unten und springt dann durch Wirkung des Unterdruckes in dem Trennsauger wieder nach oben in die obere Endposition.With such a design, no additional drive and no additional control for locking the separating suction device in the raised position is required. The counter bearing is inevitably moved together with the feeler foot and the support on the suction nozzle is only released, if the following sheet is to be lifted off the stack. The suction nozzle of the vacuum cleaner then falls down due to its own weight and possibly with the help of spring force and then jumps up again into the upper end position due to the vacuum in the vacuum cleaner.

Merkmale zur vorteilhaften Ausgestaltung der Erfindung enthalten die Ansprüche 3 bis 7.Features for the advantageous embodiment of the invention are contained in claims 3 to 7.

Ausführungsbeispiele der Erfindung sind auf der Zeichnung schematisch dargestellt.Embodiments of the invention are shown schematically in the drawing.

Es zeigen:

Figur 1
eine Seitenansicht eines ersten Ausführungsbeispieles einer Arretierung mit den Erfindungsmerkmalen,
Figur 2
eine Rückansicht der Anordnung nach Figur 1,
Figur 3
eine Seitenansicht eines zweiten Ausführungsbeispieles einer Arretierung mit den Erfindungsmerkmalen,
Figur 4
eine Rückansicht des Beispieles nach Figur 3.
Show it:
Figure 1
2 shows a side view of a first exemplary embodiment of a locking device with the inventive features,
Figure 2
2 shows a rear view of the arrangement according to FIG. 1,
Figure 3
2 shows a side view of a second exemplary embodiment of a locking device with the inventive features,
Figure 4
a rear view of the example of Figure 3.

Die Ausführungsbeispiele zeigen einen Saugkopf, bei dem ein Tastfuß 1 im Arbeitstakt der Maschine auf die Hinterkante des obersten Bogens 2 im Bogenstapel 3 aufsetzbar und in eine angehobene Endlage zurückschwenkbar ist. Dazu ist der Tastfuß 1 einerseits mit dem freien Ende des einen Armes 4a eines Doppelhebels 4 und andererseits an einen Führungshebel 5 angelenkt, die beide um quer zur Förderrichtung verlaufende Achsen 6 und 7 am Gehäuse 8 des Saugkopfes schwenkbar gelagert sind, wobei diese Hebel so aufeinander abgestimmt sind, daß der Tastfuß 1 aus der mit vollen Linien dargestellten Position bis in die mit strichpunktierter Linie dargestellte Position zurück- und wieder vorschwenkt. Für den Antrieb ist der andere Arm 4b des Doppelhebels 4 gelenkig mit dem einen Ende einer Koppel 9 verbunden, deren anderes Ende an einen Rollenhebel 10 angelenkt ist, dessen eines Ende gelenkig am Gehäuse 8 gelagert ist und der eine Kurvenrolle 11 trägt, die mittels einer an das andere Ende des Rollenhebels 10 angreifenden Feder 12 gegen den Umfang einer angetriebenen Kurvenscheibe 13 gedrückt wird. Diese Kurvenscheibe 13 steuert somit die Bewegung des Tastfußes 1 im Arbeitstakt des Saugkopfes. Auf dem Gelenkzapfen 14 des zwischen der Koppel 9 und dem einen Hebelarm 4b des Doppelhebels 4 kniehebelartig wirksamen Gelenkes ist ein Kulissenkörper 15 verschwenkbar, die mit einer gabelförmigen Kulisse 16 auf das fest am Gehäuse 8 angengeordnete Blasrohr 17 für die Zufuhr von Blasluft zu Lockerungsbläsern oder dergleichen aufgeschoben ist, so daß diese Kulissenkörper 15, 16 synchron mit dem Tastfuß 1 aus der in Figur 1 mit vollen Linien dargestellten Position in die mit strichpunktierter Linie dargestellte Position und zurück bewegt wird.The exemplary embodiments show a suction head in which a feeler foot 1 can be placed on the trailing edge of the uppermost sheet 2 in the sheet stack 3 in the work cycle of the machine and can be pivoted back into a raised end position. For this purpose, the feeler foot 1 is articulated on the one hand with the free end of one arm 4a of a double lever 4 and on the other hand on a guide lever 5, both of which are pivotably mounted about axes 6 and 7 extending transversely to the conveying direction on the housing 8 of the suction head, these levers being so one on top of the other are coordinated that the feeler foot 1 swings back and forth again from the position shown with full lines to the position shown with dash-dotted lines. For the drive, the other arm 4b of the double lever 4 is articulated to one end of a coupling 9, the other end of which is articulated to a roller lever 10, one end of which is articulated on the housing 8 and which carries a cam roller 11, which by means of a at the other end of the roller lever 10 engaging spring 12 is pressed against the circumference of a driven cam 13. This cam 13 thus controls the movement of the feeler 1 in the working cycle of the suction head. On the hinge pin 14 of the joint between the coupling 9 and the one lever arm 4b of the double lever 4, which acts like a toggle lever, a link body 15 can be pivoted, which with a fork-shaped link 16 onto the blow pipe 17, which is fixedly arranged on the housing 8, for the supply of blowing air to loosening fans or the like is pushed on, so that this link body 15, 16 is moved synchronously with the feeler 1 from the position shown in full lines in FIG. 1 to the position shown in broken lines and back.

Der Trennsauger 18 ist als Springsauger ausgeführt und an dem Gehäuse 8 befestigt. Der untere Teil dieses Springsaugers mit der Saugdüse 19 fällt bei atmosphärischem Innendruck durch sein Eigengewicht und gegebenenfalls mit Unterstützung durch eine innere Feder 20 (Figur 2) in die untere Endposition, so daß die Saugdüse auf dem obersten Bogen 2 im Bogenstapel 3 aufliegt. Bei Beaufschlagung mit Unterdruck springt die Saugdüse 19 in die obere Endposition und hebt dabei das hintere Ende des obersten Bogens 2 vom Bogenstapel 3 ab. Dabei ist der Tastfuß in die mit strichpunktierter Linie angegebene hintere Position zurückgeschwenkt. Nunmehr übernehmen auf der Zeichnung nicht dargestellte Schleppsauger den abgehobenen Bogen 2 und transportieren diesen in Richtung zum Anleger. Gleichzeitig kehrt der Tastfuß 1 in die mit voller Linie dargestellte Position zurück, wobei der Kulissenkörper 15 in die mit voller Linie dargestellte Position geschwenkt wird. Dabei untergreift ein an dem Kulissenkörper 15 befestigtes Gegenlager 20 ein Auflager 21, welches seitlich an der Saugdüse 19 angeordnet ist. Dadurch ist die Saugdüse 19 in der oberen Position arretiert, so daß sie nicht in die untere Position zurückfällt, wenn der Unterdruck in der Saugdüse aufgehoben wird. Dabei ist der Tastfuß 1 in die mit voller Linie gezeichnete Position geschwenkt. Danach schwenkt der Tastfuß 1 in die mit strichpunktierter Linie dargestellte Position zurück und gleichzeitig gibt der Kulissenkörper 15 mit dem daran befestigten Gegenlager 20 das Auflager 21 an der Saugdüse 19 frei, so daß diese ebenfalls in die mit strichpunktierter Linie dargestellte untere Endlage zurückfällt und zum Abheben des nächsten Bogens vom Bogenstapel 3 erneut mit Unterdruck beaufschlagt werden kann.The separating suction device 18 is designed as a jumping suction device and is attached to the housing 8. The lower part of this jumping suction device with the suction nozzle 19 falls at atmospheric internal pressure due to its own weight and possibly with the support of an inner spring 20 (FIG. 2) into the lower end position, so that the suction nozzle rests on the uppermost sheet 2 in the sheet stack 3. When a vacuum is applied, the suction nozzle 19 jumps into the upper end position and lifts the rear end of the uppermost sheet 2 from the sheet stack 3. The feeler is swiveled back to the rear position indicated by a dash-dotted line. Now, vacuum cleaners not shown in the drawing take over the lifted sheet 2 and transport it towards the feeder. At the same time, the tactile foot 1 returns the position shown in full line back, the link body 15 is pivoted into the position shown in full line. In this case, a counter bearing 20 fastened to the link body 15 engages under a support 21 which is arranged on the side of the suction nozzle 19. Characterized the suction nozzle 19 is locked in the upper position so that it does not fall back into the lower position when the vacuum in the suction nozzle is released. The feeler foot 1 is pivoted into the position drawn with a full line. Then the feeler foot 1 swings back into the position shown with a dash-dotted line, and at the same time the link body 15 with the counter-bearing 20 attached to it releases the support 21 on the suction nozzle 19, so that it also falls back into the lower end position shown with a dash-dotted line and for lifting of the next sheet from sheet stack 3 can be subjected to negative pressure again.

Die Figur 2 verdeutlicht die Anordnung eines Trennsaugerpaares, die mit einem Abstand voneinander symmetrisch zur Mittellängsebene der Maschine angeordnet sein können. Aus dieser Figur sind außerdem übliche Führungsfedern 22 ersichtlich, die die Saugdüsen der Trennsauger gegen Verdrehung sichern und die untere Endlage für die Saugdüse markieren.FIG. 2 illustrates the arrangement of a pair of separating suction cups, which can be arranged symmetrically to the central longitudinal plane of the machine at a distance from one another. This figure also shows conventional guide springs 22 which secure the suction nozzles of the separating suction devices against rotation and mark the lower end position for the suction nozzle.

Bei dem Ausführungsbeispiel nach den Figuren 3 und 4 entspricht die Anordnung des Tastfußes 1 und entsprechen die Mittel des Antriebes für den Tastfuß 1 der Beschreibung zu dem Ausführungsbeispiel in den Figuren 1 und 2. Zum Zwecke der Arretierung des Trennsaugers mit seiner Saugdüse 19 in der oberen Stellung ist in Abweichung von dem Ausführungsbeispiel nach den Figuren 1 und 2 als Gegenlager für das Auflager 21 eine Blattfeder 23 vorgesehen, die an einem Blech 24 befestigt ist, welches sich am Gehäuse 8 des Saugkopfes neben dem Trennsauger 18 nach unten erstreckt. Ein in der Seitenansicht nasenförmiges Profil der Blattfeder 23 durchgreift eine Ausnehmung des Bleches 24 und bildet das Gegenlager für das Auflager an der Saugdüse 19 des Trennsaugers 18. Die auf der Zeichnung mit voller Linie dargestellte Eingriffsposition des Gegenlagers und des Auflagers entspricht dem entspannten Zustand der Blattfeder 23. Für die Entriegelung ist ein Auslösehebel 25 vorgesehen, der mit seinem einen Ende in das Gestaltungsprofil der Blattfeder 23 eingreift und mit dem anderen Ende an einer Schwenkwelle 26 befestigt ist, die über einen Schwenkhebel 27 und eine Koppellasche 28 mit dem Rollenhebel 10 verbunden ist. Dadurch führt eine Schwenkbewegung des Rollenhebels nach rechts zum Abheben des Tastfußes 1 von der Hinterkante des Bogenstapels zu einer Schwenkbewegung des Auslösehebels in Gegenrichtung, so daß dieser die das Gegenlager bildende Nase der Blattfeder aus dem Bereich des Auflagers an der Saugdüse 19 herauszieht und die Saugdüse dadurch in die untere Position fallen kann. Sobald der Tastfuß beginnt, in die mit strichpunktierter Linie dargestellte Lage zurückzuschwenken, wird die Blattfeder entlastet, so daß sie in eine Warteposition für das Wirksamwerden der Arretierung zurückkehrt. Dazu weist die Profilierung der Blattfeder 23 eine schräge Gleitfläche auf, so daß das Auflager 21 unter elastischer Verformung der Blattfeder 23 an dieser vorbei in die obere Endlage der Saugdüse 19 gelangen kann. Für die doppelseitige Ausbildung entsprechend dem Beispiel in Figur 2 ist die Schwenkwelle 26 in einem Rohr 29 gelagert, welches an einer oder an mehreren Stellen fest mit dem Gehäuse 8 des Saugkopfes verbunden ist und am Umfang schlitzförmige Ausnehmungen aufweist, die von dem mit der Schwenkwelle 26 verbundenen Schwenkhebel 27 durchgriffen wird.In the exemplary embodiment according to FIGS. 3 and 4, the arrangement of the tactile foot 1 and the means of the drive for the tactile foot 1 correspond to the description of the exemplary embodiment in FIGS. 1 and 2. For the purpose of locking the separating suction device with its suction nozzle 19 in the upper one In deviation from the exemplary embodiment according to FIGS. 1 and 2, a position is provided as a counter bearing for the support 21, a leaf spring 23 which is fastened to a sheet metal 24 which is located on the housing 8 of the suction head next to the separating suction device 18 extends downward. A nose-shaped profile of the leaf spring 23 in the side view passes through a recess in the plate 24 and forms the counter bearing for the support on the suction nozzle 19 of the separating suction device 18. The engagement position of the counter bearing and the support shown in full line on the drawing corresponds to the relaxed state of the leaf spring 23. For unlocking a release lever 25 is provided which engages with one end in the design profile of the leaf spring 23 and is attached at the other end to a pivot shaft 26 which is connected to the roller lever 10 via a pivot lever 27 and a coupling plate 28 . This results in a pivoting movement of the roller lever to the right to lift the feeler 1 from the rear edge of the sheet stack to a pivoting movement of the release lever in the opposite direction, so that this pulls the nose of the leaf spring forming the counter bearing out of the area of the support on the suction nozzle 19 and the suction nozzle thereby can fall into the lower position. As soon as the feeler foot begins to pivot back into the position shown with a dash-dotted line, the leaf spring is relieved, so that it returns to a waiting position for the locking to take effect. For this purpose, the profiling of the leaf spring 23 has an oblique sliding surface, so that the support 21 can move past the leaf spring 23 past the latter into the upper end position of the suction nozzle 19 with elastic deformation. For the double-sided design according to the example in FIG. 2, the swivel shaft 26 is mounted in a tube 29 which is firmly connected to the housing 8 of the suction head at one or more points and has slot-shaped recesses on the circumference which differ from that with the swivel shaft 26 connected pivot lever 27 is penetrated.

BEZUGSZEICHENLISTEREFERENCE SIGN LIST

11
TastfußFeet
22nd
Bogenarc
33rd
BogenstapelSheet stack
44th
DoppelhebelDouble lever
4a4a
HebelarmLever arm
4b4b
HebelarmLever arm
55
FührungshebelGuide lever
66
Achseaxis
77
Achseaxis
88th
Gehäusecasing
99
KoppelPaddock
1010th
RollenhebelRoller lever
1111
KurvenrolleCam roller
1212
Federfeather
1313
KurvenscheibeCam
1414
GelenkzapfenHinge pin
1515
KulissenkörperBackdrop body
1616
KulissenausnehmungScenery recess
1717th
BlasluftrohrBlow air pipe
1818th
TrennsaugerSeparating suction
1919th
SaugdüseSuction nozzle
2020th
GegenlagerCounter bearing
2121
Auflager (Steuerkurve)Support (control curve)
2222
FührungsfederGuide spring
2323
BlattfederLeaf spring
2424th
Blechsheet
2525th
AuslösehebelRelease lever
2626
SchwenkwelleSwivel shaft
2727th
SchwenkhebelSwivel lever
2828
KoppellascheCoupling strap
2929
Rohrpipe

Claims (8)

Vorrichtung zur Arretierung der Saugdüse von Trennsaugern am Saugkopf eines Bogenanlegers einer bogenverarbeitenden Maschine, welcher wenigstens einen im Arbeitstakt des Anlegers beweglichen Tastfuß aufweist und bei dem die vertikale Bewegung der Saugdüse durch Saugluft und Federkraft erfolgt und die Saugdüse ein seitlich angeordnetes Auflager besitzt, welches in der angehobenen Stellung der Saugdüse von einem beweglich angeordneten Gegenlager gestützt wird, bis die Hinterkante des in den Anleger geförderten Bogens den Bereich der Saugdüse des Trennsaugers verlassen hat,
dadurch gekennzeichnet,
daß das Gegenlager (20) mit Gliedern (9,4,14) zur übertragung des Antriebes auf den Tastfuß (1) gelenkig gekoppelt und dadurch im Arbeitstakt des Saugkopfes beweglich ist.Device for locking the suction nozzle of separating suction devices on the suction head of a sheet feeder of a sheet-processing machine, which has at least one touch foot movable in the feeder working cycle and in which the vertical movement of the suction nozzle is effected by suction air and spring force and the suction nozzle has a laterally arranged support, which in the the raised position of the suction nozzle is supported by a movably arranged counter bearing until the rear edge of the sheet conveyed into the feeder has left the area of the suction nozzle of the separating suction device,
characterized,
that the counter bearing (20) with links (9, 4, 14) for the transmission of the drive to the feeler foot (1) is articulated and thereby movable in the working cycle of the suction head. Vorrichtung nach Anspruch 1,
dadurch gekennzeichnet,
daß das Gegenlager (20) an einem Kulissenkörper (15) ausgebildet ist, der auf dem Gelenkzapfen (14) eines kniehebelartigen Gelenkes zwischen Antriebsgliedern (9,4) für den Tastfuß (1) beweglich gelagert ist und an einem Festpunkt des Saugkopfes drehbeweglich und tangential zur Achse des Gelenkes linear verschieblich geführt ist.Device according to claim 1,
characterized,
that the counter bearing (20) is formed on a link body (15) which is movably mounted on the pivot pin (14) of a toggle joint between drive members (9,4) for the sensing foot (1) and rotatably and tangentially at a fixed point of the suction head is guided linearly displaceable to the axis of the joint. Vorrichtung nach Anspruch 2,
dadurch gekennzeichnet,
daß der Kulissenkörper (15) eine Gabelform aufweist und mit der Kulissenausnehmung (16) zwischen seinen Gabelschenkeln einen am Saugkopf ortsfest angeordneten Zapfen (17) einschließt.Device according to claim 2,
characterized,
that the link body (15) has a fork shape and with the link recess (16) between it Fork legs includes a pin (17) arranged in a fixed position on the suction head. Vorrichtung nach den Ansprüchen 2 und 3,
dadurch gekennzeichnet,
daß das Schwenklager des Kulissenkörpers auf dem Gelenkzapfen (14) des kniehebelartigen Gelenkes exzentrisch zur Mittelachse der Gabelausbildung angeordnet ist.Device according to claims 2 and 3,
characterized,
that the pivot bearing of the link body on the hinge pin (14) of the toggle joint is arranged eccentrically to the central axis of the fork formation. Vorrichtung nach Anspruch 1,
dadurch gekennzeichnet,
daß das Auflager (21) an der Saugdüse (19) und das Gegenlager (20) am Kulissenkörper (15) plattenförmig ausgebildet sind.Device according to claim 1,
characterized,
that the support (21) on the suction nozzle (19) and the counter bearing (20) on the link body (15) are plate-shaped. Vorrichtung nach Anspruch 1,
dadurch gekennzeichnet,
daß als Gegenlager (20) eine am Saugkopf befestigte Blattfeder (23) vorgesehen ist, die mit einem am Saugkopf gelagerten Auslösehebel (25) zusammenwirkt, der gelenkig mit einem Antriebsglied (10) für den Tastfuß (1) gekoppelt ist, so daß die Blattfeder (23) das Auflager (21) an der Saugdüse (19) beim Zurückschwenken des Tastfußes (1) freigibt.Device according to claim 1,
characterized,
that as a counter bearing (20) a leaf spring attached to the suction head (23) is provided, which cooperates with a trigger lever (25) mounted on the suction head, which is articulated to a drive member (10) for the sensing foot (1), so that the leaf spring (23) releases the support (21) on the suction nozzle (19) when the feeler foot (1) is swiveled back. Vorrichtung nach Anspruch 6,
dadurch gekennzeichnet,
daß der Auslösehebel (25) doppelarmig ausgebildet ist, so daß sein einer Arm (27) gelenkig mit einem Antriebsglied (10) des Tastfußes (1) verbunden ist und sein anderer Arm (25) auf die Blattfeder (23) einwirkt.Apparatus according to claim 6,
characterized,
that the trigger lever (25) is double-armed so that its one arm (27) is articulated to a drive member (10) of the sensing foot (1) and its other arm (25) acts on the leaf spring (23). Vorrichtung nach Anspruch 3,
dadurch gekennzeichnet,
daß der von der Kulissenausnehmung (16) teilweise umschlossene Zapfen durch das Blasrohr (17) für die Zufuhr von Blasluft zu den Lockerungsbläsern gebildet ist.Device according to claim 3,
characterized,
that the pin which is partially enclosed by the link recess (16) is formed by the blow pipe (17) for the supply of blown air to the loosening blowers.
EP91104985A 1990-04-21 1991-03-28 Device for locking the suction nozzle of suction separators at the suction head of a sheet feeder Expired - Lifetime EP0453810B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4012779A DE4012779C1 (en) 1990-04-21 1990-04-21
DE4012779 1990-04-21

Publications (3)

Publication Number Publication Date
EP0453810A2 true EP0453810A2 (en) 1991-10-30
EP0453810A3 EP0453810A3 (en) 1992-12-30
EP0453810B1 EP0453810B1 (en) 1994-11-02

Family

ID=6404832

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91104985A Expired - Lifetime EP0453810B1 (en) 1990-04-21 1991-03-28 Device for locking the suction nozzle of suction separators at the suction head of a sheet feeder

Country Status (7)

Country Link
US (1) US5094439A (en)
EP (1) EP0453810B1 (en)
JP (1) JPH0725430B2 (en)
AT (1) ATE113562T1 (en)
CA (1) CA2037450C (en)
DE (2) DE4012779C1 (en)
ES (1) ES2064794T3 (en)

Cited By (3)

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EP0620173A1 (en) * 1993-04-14 1994-10-19 Heidelberger Druckmaschinen Aktiengesellschaft Detector for periodically detecting pile height
EP0680905A1 (en) * 1994-05-07 1995-11-08 Heidelberger Druckmaschinen Aktiengesellschaft Device for signal generation at a suction head
DE102021115423A1 (en) 2021-06-15 2022-12-15 Koenig & Bauer Ag Feeder of a sheet processing machine and method for separating sheets

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EP0553455B1 (en) * 1992-01-30 1998-03-25 Ferag AG Method and device for lifting printed products from a stack
JPH07251966A (en) * 1994-03-10 1995-10-03 Canon Inc Recording or reading device and paper sucking device
RU2237003C2 (en) * 1999-02-05 2004-09-27 Фераг Аг Device for separating flat articles from pile, particularly, printed matter
DE19947573A1 (en) * 1999-10-01 2001-04-05 Heidelberger Druckmasch Ag Lift-drag suction gear for sheet processing machine
US7080832B2 (en) * 2003-05-14 2006-07-25 Goss International Americas, Inc. Sheet material feeder
JP4338611B2 (en) * 2004-09-17 2009-10-07 富士フイルム株式会社 Film sheet single wafer mechanism and heat development recording apparatus provided with the same
JP2006347701A (en) * 2005-06-16 2006-12-28 Komori Corp Sheet-like article pressing device
US20070138733A1 (en) * 2005-12-16 2007-06-21 Chris Gray Pick mechanism

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US3071371A (en) * 1960-12-07 1963-01-01 Miehle Goss Dexter Inc Sheet feeding apparatus
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EP0453803A2 (en) * 1990-04-21 1991-10-30 Heidelberger Druckmaschinen Aktiengesellschaft Locking device for the suction nozzle of a suction separating device for the feeding device of a printing machine

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DE891267C (en) * 1938-11-08 1953-09-28 Georg Dr-Ing Spiess Device for lifting the top sheet from a flat or round stack by means of swinging gripper nozzles
US2615713A (en) * 1948-04-22 1952-10-28 Backhouse Headley Townsend Sheet separating machine
US3071371A (en) * 1960-12-07 1963-01-01 Miehle Goss Dexter Inc Sheet feeding apparatus
DE6947980U (en) * 1969-12-11 1970-03-19 Helmut Dr Ing Spiess DEVICE FOR SEPARATING AND CONVEYING THE SHEETS OF A PILE OF VERTICAL ARCHES
DE2309013A1 (en) * 1973-02-23 1974-09-05 Mabeg Maschinenbau Gmbh Nachf SEPARATING SUCTION DRIVE OF A SUCTION HEAD
EP0453803A2 (en) * 1990-04-21 1991-10-30 Heidelberger Druckmaschinen Aktiengesellschaft Locking device for the suction nozzle of a suction separating device for the feeding device of a printing machine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0620173A1 (en) * 1993-04-14 1994-10-19 Heidelberger Druckmaschinen Aktiengesellschaft Detector for periodically detecting pile height
EP0680905A1 (en) * 1994-05-07 1995-11-08 Heidelberger Druckmaschinen Aktiengesellschaft Device for signal generation at a suction head
DE102021115423A1 (en) 2021-06-15 2022-12-15 Koenig & Bauer Ag Feeder of a sheet processing machine and method for separating sheets

Also Published As

Publication number Publication date
US5094439A (en) 1992-03-10
JPH04223941A (en) 1992-08-13
ATE113562T1 (en) 1994-11-15
EP0453810B1 (en) 1994-11-02
DE4012779C1 (en) 1991-05-02
DE59103387D1 (en) 1994-12-08
EP0453810A3 (en) 1992-12-30
ES2064794T3 (en) 1995-02-01
CA2037450C (en) 1995-01-03
JPH0725430B2 (en) 1995-03-22

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