EP0453803A2 - Locking device for the suction nozzle of a suction separating device for the feeding device of a printing machine - Google Patents

Locking device for the suction nozzle of a suction separating device for the feeding device of a printing machine Download PDF

Info

Publication number
EP0453803A2
EP0453803A2 EP91104935A EP91104935A EP0453803A2 EP 0453803 A2 EP0453803 A2 EP 0453803A2 EP 91104935 A EP91104935 A EP 91104935A EP 91104935 A EP91104935 A EP 91104935A EP 0453803 A2 EP0453803 A2 EP 0453803A2
Authority
EP
European Patent Office
Prior art keywords
suction
suction nozzle
sheet
vacuum cleaner
separating
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.)
Withdrawn
Application number
EP91104935A
Other languages
German (de)
French (fr)
Other versions
EP0453803A3 (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
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Heidelberger Druckmaschinen AG filed Critical Heidelberger Druckmaschinen AG
Publication of EP0453803A2 publication Critical patent/EP0453803A2/en
Publication of EP0453803A3 publication Critical patent/EP0453803A3/en
Withdrawn legal-status Critical Current

Links

Images

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 891 267. 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 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 which is arranged on a stack button.
  • the separating vacuum is as Jumping suction cup so that the suction nozzle jumps up in its rear swivel position after sucking the top sheet in the sheet stack, whereupon the abutment of the pawl engages behind the nose on the suction nozzle and holds it in the upper position until the sheet conveyed into the feeder also its rear edge has left the area of the now ventilated suction nozzle.
  • 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 release of the suction nozzle which is automatically controlled in the work cycle of the machine.
  • the movement of the counter-bearing which causes the suction nozzle of the separating suction device to be locked is controlled directly by the drag suction movement by means of a few simple components and is therefore also dependent on the suction suction movement.
  • the thrust bearing is fastened to a component of the vacuum cleaner drive which is horizontally movably guided approximately parallel to the sheet plane in the stack of sheets and has a control edge which supports the support on the suction nozzle of the vacuum cleaner in the front range of motion of the vacuum cleaner shortly before reaching the front Releases the end position and locks again immediately after the start of the return movement.
  • the counter bearing consists of a pin fastened to the suction cup, one end of which forms the counter bearing interacting with the support.
  • a separating suction device 3 or more separating suction devices 3 are arranged next to one another and at a distance from one another transversely to the conveying direction of the sheets.
  • the separating suction device 3 is designed as a jumping suction device, so that the suction nozzle 4, which is guided vertically movably on the separating suction device 3, falls into the lower suction position due to its own weight and, if necessary, with the support of an internal spring, which is shown in FIG.
  • This lower end position of the suction nozzle 4 is fixed by a guide spring 5 shown in Figure 2, which secures the suction nozzle against rotation at the same time.
  • a support 6 is laterally provided for a counter bearing 7 for locking the suction nozzle 4 in the raised position.
  • the counter bearing 7 is guided to be horizontally movable and connected to the drive for the horizontal vacuum cleaner movement.
  • the drag vacuums are not shown in the drawing for reasons of clarity.
  • the horizontal movement of the suction cups takes place in the example via an eccentric drive from a rotating eccentric disc 8 which moves in a ring 9 which is articulated to a rocker arm 10, one end of which has a self-aligning bearing 11 on the suction head 1.
  • the other end of the rocker arm 10 is articulated to one end of a roller lever 12, which is guided with a roller 13 rotatably mounted at the other end in a horizontally arranged on the suction head 1 guide 14, so that a horizontal forward and reverse movement of the vacuum cleaner is achieved.
  • a locking pin forming the counter bearing 7 for the support 6 is connected, which extends horizontally and has a length such that the support 6 on the suction nozzle 4 is released when the teats are in the front Movement position and a new bow can be lifted from the sheet stack 2.
  • the free end of the locking pin 7 engages under the support 6 of the suction nozzle, so that it is locked in the upper position before the vacuum in the suction extractor 3 is released.
  • the position of the locking pin 7 is shown in Figure 1 with a dash-dotted line when the suction nozzle 4 of the vacuum cleaner 3 is released.
  • the position of the locking pin is shown in full line, in which the suction nozzle 4 is locked in the upper end position.
  • a single, centrically attached separating suction device 3 can also be provided with a double-spring suction device 15.

Landscapes

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

Abstract

The locking device for the suction nozzle of a suction separating device on the suction head of a feeding device for sheet-processing machines is intended for suction heads, in which the vertical movement of the suction nozzles (4) takes place by suction air and spring force and the suction nozzle (4) has a laterally arranged support (6) which, in the raised position of the suction nozzle (4), is supported by a movably arranged countersupport (7) until the rear edge of the sheet conveyed into the feeding device has left the region of the suction nozzle (4) of the suction separating device (3) and in which at least one drag sucker is guided movably backwards and forwards approximately parallel to the sheet plane on the suction head (1) in the working cycle of the machine by means of a drive (8, 9). This countersupport (7) has a coupling with a member (12) moved by the drag sucker drive (8, 9). <IMAGE>

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 891 267 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 891 267. 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 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 which is arranged on a stack button. The separating vacuum is as Jumping suction cup so that the suction nozzle jumps up in its rear swivel position after sucking the top sheet in the sheet stack, whereupon the abutment of the pawl engages behind the nose on the suction nozzle and holds it in the upper position until the sheet conveyed into the feeder also its rear edge has left the area of the now ventilated suction nozzle. 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 gesteuerten Freigabe der Saugdüse.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 release of the suction nozzle which is automatically controlled in the work cycle of the machine.

Gelöst wird diese Aufgabe durch Ausbildungsmerkmale nach dem Kennzeichen des Patentanspruches 1 an einem Saugkopf, der die Gattungsmerkmale nach dem Oberbegriff des Patentanspruches 1 aufweist.This object is achieved by training features according to the characterizing part of claim 1 on a suction head which has the generic features according to the preamble of claim 1.

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 Schleppsauger bewegt, so daß das Auflager an der Saugdüse erst freigegeben wird, wenn der oberste in den Anleger geförderte Bogen mit seiner Hinterkante den Bereich der Saugdüse des Trennsaugers verlassen hat und 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 durch die Wirkung des Unterdruckes in dem Trennsauger wieder nach oben in die obere Endposition, in der sie erneut arretiert wird, bevor der Unterdruck im Trennsauger aufgehoben und der Bogen in den Anleger gefördert wird.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 suction cup so that the support on the suction nozzle is only released when the top sheet conveyed into the feeder has left the area of the suction nozzle of the separating suction device with its rear edge and 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, if necessary, with the help of spring force and jumps back up into the upper end position due to the effect of the vacuum in the vacuum cleaner, in which it is locked again before the vacuum in The vacuum cleaner is lifted and the sheet is fed into the feeder.

Es ist ein besonderer Vorteil einer solchen Ausbildung, daß die Bewegung des die Arretierung der Saugdüse des Trennsaugers bewirkenden Gegenlagers durch wenige einfache Bauteile unmittelbar durch die Schleppsaugerbewegung gesteuert wird und somit auch von der Schleppsaugerbewegung abhängig ist. Bei einer bevorzugten Ausbildung ist vorgesehen, daß das Gegenlager an einem etwa parallel zur Bogenebene im Bogenstapel horizontal beweglich geführten Bauteil des Schleppsaugerantriebes befestigt ist und eine Steuerkante aufweist, die das Auflager an der Saugdüse des Trennsaugers im vorderen Bewegungsbereich des Schleppsaugers kurz vor der Erreichung der vorderen Endlage freigibt und alsbald nach dem Beginn der Rücklaufbewegung erneut arretiert. In einfachster Ausführung besteht das Gegenlager aus einem an dem Schleppsauger befestigten Stift, dessen eines Ende das mit dem Auflager zusammenwirkende Gegenlager bildet.It is a particular advantage of such a design that the movement of the counter-bearing which causes the suction nozzle of the separating suction device to be locked is controlled directly by the drag suction movement by means of a few simple components and is therefore also dependent on the suction suction movement. In a preferred embodiment it is provided that the thrust bearing is fastened to a component of the vacuum cleaner drive which is horizontally movably guided approximately parallel to the sheet plane in the stack of sheets and has a control edge which supports the support on the suction nozzle of the vacuum cleaner in the front range of motion of the vacuum cleaner shortly before reaching the front Releases the end position and locks again immediately after the start of the return movement. In the simplest version, the counter bearing consists of a pin fastened to the suction cup, one end of which forms the counter bearing interacting with the support.

Die Anwendung der Erfindungsmerkmale ist unabhängig von der Anzahl der vorgesehenen Trennsauger bzw. der vorgesehenen Schleppsauger.The application of the features of the invention is independent of the number of vacuum cleaners or drag vacuums provided.

Ein Ausführungsbeispiel der Erfindung ist auf der Zeichnung schematisch dargestellt.An embodiment of the invention is shown schematically in the drawing.

Es zeigen:

Figur 1
eine Seitenansicht eines Saugkopfes eines Bogenanlegers,
Figur 2
eine Rückansicht des Saugkopfes nach Figur 1
Figur 3
und eine alternative Ausführungsform
Show it:
Figure 1
a side view of a suction head of a sheet feeder,
Figure 2
a rear view of the suction head of Figure 1
Figure 3
and an alternative embodiment

An dem Saugkopf 1 sind in einem Bereich über dem hinteren Ende der Bogen im Bogenstapel 2 ein Trennsauger 3 oder mehrere Trennsauger 3 quer zur Förderrichtung der Bogen in dem Anleger nebeneinander und mit einem Abstand voneinander angeordnet. Der Trennsauger 3 ist als Springsauger ausgeführt, so daß die vertikal beweglich an dem Trennsauger 3 geführte Saugdüse 4 durch ihr Eigengewicht und gegebenenfalls mit Unterstützung einer inneren Feder in die untere Ansaugposition fällt, die in der Figur 1 mit der strichpunktierten Linie dargestellt ist. Diese untere Endlage der Saugdüse 4 wird durch eine in Figur 2 dargestellte Führungsfeder 5 fixiert, die die Saugdüse gleichzeitig gegen Verdrehung sichert. An der Saugdüse 4 ist seitlich ein Auflager 6 für ein Gegenlager 7 zur Arretierung der Saugdüse 4 in der angehobenen Position vorgesehen. Das Gegenlager 7 ist horizontal beweglich geführt und mit dem Antrieb für die horizontale Schleppsaugerbewegung verbunden. Die Schleppsauger sind auf der Zeichnung aus Gründen der besseren Übersicht nicht dargestellt. Die horizontale Bewegung der Schleppsauger erfolgt in dem Beispiel über einen Exzenterantrieb aus einer drehenden Exzenterscheibe 8, die sich in einem Ring 9 bewegt, der mit einem Schwinghebel 10 gelenkig verbunden ist, dessen eines Ende ein Pendellager 11 am Saugkopf 1 aufweist. Das andere Ende des Schwinghebels 10 ist gelenkig mit dem einen Ende eines Rollenhebels 12 verbunden, der mit einer an dem anderen Ende drehbar gelagerten Rolle 13 in einer horizontal am Saugkopf 1 angeordneten Führung 14 geführt ist, so daß eine horizontale Vor- und Rücklaufbewegung des Schleppsaugers erreicht wird. Mit dem Rollenhebel 12 auf jeder der beiden Maschinenseiten ist ein das Gegenlager 7 für das Auflager 6 bildender Arretierstift verbunden, der sich horizontal erstreckt und eine solche Länge aufweist, daß das Auflager 6 an der Saugdüse 4 freigegeben ist, wenn sich die Schleppsauger in der vorderen Bewegungsposition befinden und ein neuer Bogen vom Bogenstapel 2 abgehoben werden kann. Alsbald nach dem Beginn der Rücklaufbewegung des Schleppsaugers untergreift das freie Ende des Arretierstiftes 7 das Auflager 6 der Saugdüse , so daß diese in der oberen Position arretiert wird, bevor der Unterdruck im Trennsauger 3 aufgehoben wird. Auf der Zeichnung ist in Figur 1 mit strichpunktierter Linie die Lage des Arretierstiftes 7 bei freigegebener Saugdüse 4 des Trennsaugers 3 dargestellt. Mit voller Linie ist die Lage des Arretierstiftes dargestellt, in der die Saugdüse 4 in der oberen Endlage arretiert ist. Erkennbar ist der besondere Vorteil, daß die Mittel zur Arretierung des als Springsauger ausgeführten Trennsaugers aus einfachen Bauteilen bestehen.On the suction head 1, in a region above the rear end of the sheets in the sheet stack 2, a separating suction device 3 or more separating suction devices 3 are arranged next to one another and at a distance from one another transversely to the conveying direction of the sheets. The separating suction device 3 is designed as a jumping suction device, so that the suction nozzle 4, which is guided vertically movably on the separating suction device 3, falls into the lower suction position due to its own weight and, if necessary, with the support of an internal spring, which is shown in FIG. This lower end position of the suction nozzle 4 is fixed by a guide spring 5 shown in Figure 2, which secures the suction nozzle against rotation at the same time. On the suction nozzle 4, a support 6 is laterally provided for a counter bearing 7 for locking the suction nozzle 4 in the raised position. The counter bearing 7 is guided to be horizontally movable and connected to the drive for the horizontal vacuum cleaner movement. The drag vacuums are not shown in the drawing for reasons of clarity. The horizontal movement of the suction cups takes place in the example via an eccentric drive from a rotating eccentric disc 8 which moves in a ring 9 which is articulated to a rocker arm 10, one end of which has a self-aligning bearing 11 on the suction head 1. The other end of the rocker arm 10 is articulated to one end of a roller lever 12, which is guided with a roller 13 rotatably mounted at the other end in a horizontally arranged on the suction head 1 guide 14, so that a horizontal forward and reverse movement of the vacuum cleaner is achieved. With the roller lever 12 on each of the two machine sides, a locking pin forming the counter bearing 7 for the support 6 is connected, which extends horizontally and has a length such that the support 6 on the suction nozzle 4 is released when the teats are in the front Movement position and a new bow can be lifted from the sheet stack 2. Immediately after the start of the return movement of the vacuum cleaner, the free end of the locking pin 7 engages under the support 6 of the suction nozzle, so that it is locked in the upper position before the vacuum in the suction extractor 3 is released. In the drawing, the position of the locking pin 7 is shown in Figure 1 with a dash-dotted line when the suction nozzle 4 of the vacuum cleaner 3 is released. The position of the locking pin is shown in full line, in which the suction nozzle 4 is locked in the upper end position. The particular advantage can be seen that the means for locking the separating suction device designed as a jumping suction device consist of simple components.

In einer alternativen Ausgestaltungsform gemäß Figur 3 kann auch ein einziger zentrisch angebrachter Trennsauger 3 mit einem Doppelspringsauger 15 versehen sein.In an alternative embodiment according to FIG. 3, a single, centrically attached separating suction device 3 can also be provided with a double-spring suction device 15.

BEZUGSZEICHENLISTEREFERENCE SIGN LIST

11
SaugkopfSuction head
22nd
BogenstapelSheet stack
33rd
TrennsaugerSeparating suction
44th
SaugdüseSuction nozzle
55
FührungsfederGuide spring
66
AuflagerIn stock
77
Gegenlager (Arretierstift)Counter bearing (locking pin)
88th
ExzenterscheibeEccentric disc
99
ExzenterringEccentric ring
1010th
SchwinghebelRocker arm
1111
PendellagerSelf-aligning bearings
1212
RollenhebelRoller lever
1313
Rollerole
1414
Führungguide
1515
DoppelsaugerDouble suction cup

Claims (3)

Vorrichtung zur Arretierung der Saugdüse von Trennsaugern am Saugkopf eines Bogenanlegers für bogenverarbeitende Maschinen, bei dem die vertikale Bewegung der Saugdüse des Trennsaugers durch Saugluft und Federkraft erfolgt und die Saugdüse ein seitlich angeordnetes Auflager besitzt, welches in der angehobenen Stellung der Düse von einem beweglich angeordneten Gegenlager gestützt wird, bis die Hinterkante des in den Anleger geförderten Bogens den Bereich der Saugdüse des Trennsaugers verlassen hat und bei dem wenigstens ein Schleppsauger mittels eines Antriebes im Arbeitstakt der Maschine am Saugkopf etwa parallel zur Bogenebene vor- und zurückbeweglich geführt ist,
dadurch gekennzeichnet,
daß das Gegenlager (7) eine Kopplung mit einem durch den Schleppsaugerantrieb (8,9) bewegten Glied aufweist.Device for locking the suction nozzle of separating suction devices on the suction head of a sheet feeder for sheet-processing machines, in which the vertical movement of the suction nozzle of the separating suction device is effected by suction air and spring force and the suction nozzle has a laterally arranged support which, in the raised position of the nozzle, is supported by a movably arranged counter bearing is supported until the rear edge of the sheet conveyed into the feeder has left the area of the suction nozzle of the separating suction device and in which at least one drag suction device is guided back and forth on the suction head by means of a drive in the work cycle of the machine approximately parallel to the sheet plane,
characterized by
that the counter-bearing (7) has a coupling with a member moved by the drag suction drive (8, 9). Vorrichtung nach Anspruch 1,
dadurch gekennzeichnet,
daß das Gegenlager (7) an einem etwa parallel zur Bogenebene im Bogenstapel (2) horizontal beweglich geführten Bauteil (12) des Schleppsaugerantriebs befestigt ist und eine Steuerkante aufweist, die das Auflager (6) an der Saugdüse (4) des Trennsaugers (3) im vorderen Bewegungsbereich des Schleppsaugers kurz vor der Erreichung der vorderen Endlage der Schleppsaugerbewegung freigibt und alsbald nach dem Beginn der Rücklaufbewegung des Schleppsaugers erneut arretiert.Device according to claim 1,
characterized by
that the counter-bearing (7) is fastened to a component (12) of the vacuum cleaner drive which is horizontally movably guided approximately parallel to the sheet plane in the sheet stack (2) and has a control edge which supports the support (6) on the suction nozzle (4) of the vacuum cleaner (3) releases the vacuum cleaner movement in the front range of motion of the vacuum cleaner shortly before reaching the front end position and locks again soon after the start of the return movement of the vacuum cleaner. Vorrichtung nach Anspruch 1 und 2,
dadurch gekennzeichnet,
daß das Gegenlager (7) aus einem an dem Schleppsauger befestigten Stift besteht, dessen eines Ende das mit dem Auflager (6) zusammenwirkende Gegenlager bildet.Device according to claims 1 and 2,
characterized by
that the counter-bearing (7) consists of a pin attached to the vacuum cleaner, one end of which forms the counter-bearing interacting with the support (6).
EP19910104935 1990-04-21 1991-03-28 Locking device for the suction nozzle of a suction separating device for the feeding device of a printing machine Withdrawn EP0453803A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4012778A DE4012778C1 (en) 1990-04-21 1990-04-21
DE4012778 1990-04-21

Publications (2)

Publication Number Publication Date
EP0453803A2 true EP0453803A2 (en) 1991-10-30
EP0453803A3 EP0453803A3 (en) 1993-08-11

Family

ID=6404831

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19910104935 Withdrawn EP0453803A3 (en) 1990-04-21 1991-03-28 Locking device for the suction nozzle of a suction separating device for the feeding device of a printing machine

Country Status (5)

Country Link
US (1) US5102113A (en)
EP (1) EP0453803A3 (en)
JP (1) JPH0790931B2 (en)
CA (1) CA2037389C (en)
DE (1) DE4012778C1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0453810A2 (en) * 1990-04-21 1991-10-30 Heidelberger Druckmaschinen Aktiengesellschaft Device for locking the suction nozzle of suction separators at the suction head of a sheet feeder

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0616598A1 (en) * 1992-10-10 1994-09-28 Heidelberger Druckmaschinen Aktiengesellschaft Feeder for a sheet-paper processing machine
US5803447A (en) * 1996-09-25 1998-09-08 D&K Custom Machine Design, Inc. Method and apparatus for feeding sheets
DE10009666A1 (en) 1999-03-19 2000-09-21 Heidelberger Druckmasch Ag Suction lifter and method of operation for lifting sheets from stack comprise vacuum source, and control
EP1428778A1 (en) * 2002-12-10 2004-06-16 Fuji Photo Film Co., Ltd. Printing plate sucker

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
DE2309013A1 (en) * 1973-02-23 1974-09-05 Mabeg Maschinenbau Gmbh Nachf SEPARATING SUCTION DRIVE OF A SUCTION HEAD
DE2409528A1 (en) * 1973-06-28 1975-01-16 Polygraph Leipzig SEPARATING AND / OR CONVEYOR SUCTION DEVICES FOR PNEUMATIC BOW CUTTER AND CONVEYOR DEVICES
DE3207830A1 (en) * 1981-03-04 1982-09-30 Komori Printing Machinery Co., Ltd., Tokyo INVESTOR

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3007697A (en) * 1959-03-06 1961-11-07 Miller Printing Machinery Co Sheet feeder
US3938800A (en) * 1972-04-26 1976-02-17 Heidelberger Druckmaschinen Aktiengesellschaft Suction head for sheet feeding apparatus
CS253506B1 (en) * 1985-10-10 1987-11-12 Jaroslav Jiruse Loading equipment

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
DE2309013A1 (en) * 1973-02-23 1974-09-05 Mabeg Maschinenbau Gmbh Nachf SEPARATING SUCTION DRIVE OF A SUCTION HEAD
DE2409528A1 (en) * 1973-06-28 1975-01-16 Polygraph Leipzig SEPARATING AND / OR CONVEYOR SUCTION DEVICES FOR PNEUMATIC BOW CUTTER AND CONVEYOR DEVICES
DE3207830A1 (en) * 1981-03-04 1982-09-30 Komori Printing Machinery Co., Ltd., Tokyo INVESTOR

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0453810A2 (en) * 1990-04-21 1991-10-30 Heidelberger Druckmaschinen Aktiengesellschaft Device for locking the suction nozzle of suction separators at the suction head of a sheet feeder
EP0453810A3 (en) * 1990-04-21 1992-12-30 Heidelberger Druckmaschinen Aktiengesellschaft Device for locking the suction nozzle of suction separators at the suction head of a sheet feeder

Also Published As

Publication number Publication date
CA2037389C (en) 1994-11-01
US5102113A (en) 1992-04-07
JPH0790931B2 (en) 1995-10-04
EP0453803A3 (en) 1993-08-11
DE4012778C1 (en) 1991-05-29
JPH04223942A (en) 1992-08-13
CA2037389A1 (en) 1991-10-22

Similar Documents

Publication Publication Date Title
DE3153613C2 (en)
DE60317416T2 (en) Plate changing device
EP2700599B1 (en) Device and method for separating individual flat, flexible objects from the underside of a stack
DE2120983C3 (en) Sheet stacker
DE19500503A1 (en) Transport system with electrical conveyor units
DE19601470B4 (en) Drag suction gear, in particular drag suction gear for a device for correcting angled bends
EP0453810B1 (en) Device for locking the suction nozzle of suction separators at the suction head of a sheet feeder
EP1172316B1 (en) Device for magazine, for separating folding-boxes from a magazine duct and transferring them in a folding box transport system
EP0453803A2 (en) Locking device for the suction nozzle of a suction separating device for the feeding device of a printing machine
DE1596352C3 (en) Device for breaking off and transporting a sheet of glass from a continuous, upwardly moving, band-shaped glass sheet
DE2441459B2 (en) DEVICE FOR TEMPORARILY CATCHING AND HOLDING A SHEET TO BE PLACED ON A STACK
CH622992A5 (en)
EP0505715B1 (en) Device for exchanging travellers on spinning or twisting machines
DE4420771C2 (en) Method and devices for automatically changing the printing cylinder in a rotary printing press
EP0557723B1 (en) Inserting tapes or rods guiding device for looms
DE2132438A1 (en) SUCTION HEAD FOR BOW FEEDER
DE2950616C2 (en)
DE690899C (en) Sheet feeder
DE488782C (en) Mechanical sheet feed to printing machines, folding machines, etc. like
DE911836C (en) Device for the removal of individual flat objects with the same or different surface sizes, e.g. Letters, from a pile
DE19756570A1 (en) Apparatus for taking separate sheets from stack for mailings
AT387202B (en) Apparatus for loosening flexible, flat products, in particular printed products
DE2659568C2 (en) Transport device for layered multiple stacks of sheets
DE740018C (en) Towing device for casting lines from die setting and line casting machines
DE2356570A1 (en) Bottle handling installation - gripper lift-out system transfers bottles from 2 full length container to removal conveyor

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19910328

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT CH DE ES FR GB IT LI SE

GBC Gb: translation of claims filed (gb section 78(7)/1977)
PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT CH DE ES FR GB IT LI SE

17Q First examination report despatched

Effective date: 19950518

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN

18W Application withdrawn

Withdrawal date: 19960318