EP0535360B1 - Sheet delivery - Google Patents

Sheet delivery Download PDF

Info

Publication number
EP0535360B1
EP0535360B1 EP92114354A EP92114354A EP0535360B1 EP 0535360 B1 EP0535360 B1 EP 0535360B1 EP 92114354 A EP92114354 A EP 92114354A EP 92114354 A EP92114354 A EP 92114354A EP 0535360 B1 EP0535360 B1 EP 0535360B1
Authority
EP
European Patent Office
Prior art keywords
pile
sheet delivery
delivery according
auxiliary
auxiliary pile
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
EP92114354A
Other languages
German (de)
French (fr)
Other versions
EP0535360A3 (en
EP0535360A2 (en
Inventor
Martin Benz
Hermann Josef Falkenstein
Rudolf Liepert
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.)
Manroland AG
Original Assignee
MAN Roland 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 MAN Roland Druckmaschinen AG filed Critical MAN Roland Druckmaschinen AG
Publication of EP0535360A2 publication Critical patent/EP0535360A2/en
Publication of EP0535360A3 publication Critical patent/EP0535360A3/en
Application granted granted Critical
Publication of EP0535360B1 publication Critical patent/EP0535360B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B65H31/00—Pile receivers
    • B65H31/32—Auxiliary devices for receiving articles during removal of a completed pile
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/42—Piling, depiling, handling piles
    • B65H2301/426—Forming batches
    • B65H2301/4262—Forming batches by inserting auxiliary support as defined in B65H31/32
    • B65H2301/42622—Forming batches by inserting auxiliary support as defined in B65H31/32 and using auxiliary means for facilitating introduction of the auxiliary support
    • 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
    • B65H2406/11—Means using fluid made only for exhausting gaseous medium producing fluidised bed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2801/00—Application field
    • B65H2801/03—Image reproduction devices
    • B65H2801/21—Industrial-size printers, e.g. rotary printing press

Definitions

  • the invention relates to a sheet delivery device for sheet-processing machines, in particular sheet-fed printing machines, having a main stack receiving device which can be actuated by means of a main elevator which can be actuated by a level switch during normal delivery operation, and a non-stop device which can be activated to carry out a stack change and which has an auxiliary stack receiving device on which an auxiliary stack which arises during the stack change is recordable, which can be placed on the main stack receiving device after the stack change.
  • a roll-up armor is provided which can be unwound from a winding shaft arranged in the region of the rear of the delivery arm and runs with its side edges in stationary horizontal guides. This has a comparatively large mass and can therefore only be moved at a comparatively low speed. It is therefore necessary to lower the production speed when the non-stop device is activated. Nevertheless, it cannot be prevented here that several sheets arrive until the retracting operation of the roller shutter curtain, so that there are inevitably relative movements between the roller shutter curtain and the lowest arc and accordingly also relative movements between the arc above it, which leads to damage to the fresh pressure.
  • a delivery device for sheets in printing machines has, on the output side of the boom, swiveling inclined suction cups for holding the leading sheet edge and oppositely linearly movable inclined suction cups for holding the rear sheet edge.
  • the suction cups are intended to create a space in the stack area for forming an auxiliary stack during the stack change.
  • a device for cutting and stacking is known from US-A 2,958,431. It has a pair of sliding support plates and stops for a sheet stack. For takeover and stacking, the stack of sheets is placed on the support plates and transferred by these to a stack underneath by pulling them apart.
  • a device for depositing a stack of sheets or sheets on a wing has support members which can be inserted into a stack and which are supplied with compressed air in order to form an air cushion when inserted into the stack or for pulling out of the stack.
  • DE 37 23 113 A1 discloses devices for a lossless stack change, in particular on cross cutters in the paper and cardboard industry. They have a short auxiliary grate above a rod grate carrying an auxiliary stack, which should form a gap for the rod grate. The sheets are clamped during the actuation of the bar grate to interrupt the sheet feed.
  • the non-stop device has two auxiliary stack carriers provided in the area of the stack side edges, which can be moved in the opposite direction from a lateral waiting position into a working position spanning the main stack and vice versa, and are assigned from above and arranged from a side waiting position to one of the associated Separation position overlapping stack side edge has separable elements which, in their separating position, keep an entry gap for the respectively assigned auxiliary stack carrier and can be retracted when the auxiliary stack carrier is retracted.
  • the separating elements assigned to the auxiliary stack carriers which can be designed as comparatively low-mass pins etc., can be moved at high speed due to their low mass. It is therefore possible to shoot these separating elements at high speed during the passage of a gap between two sheets. Relative movements between the shooting-in separating elements and the sheet material to be accommodated thereon are therefore not to be feared without a reduction in the production speed being necessary.
  • the auxiliary stack carriers which can be moved into the gap kept open by the separating elements can therefore be moved at a comparatively low speed, which has an advantageous effect on reducing the stresses on the associated movement apparatus and on the development of noise. Because each of the two, in opposite directions movable auxiliary stack carrier only has to travel half way, this results in comparatively short movement times.
  • the pushing forces resulting therefrom also cancel each other out advantageously, so that there is no fear of a displacement of the auxiliary stack.
  • the lateral arrangement of the auxiliary stack carriers results in a not inconsiderable space saving.
  • the auxiliary stack carriers can advantageously be slidably received on a lifting frame guided in the lifting direction by means of a vertical guide, which is suspended from an auxiliary elevator which can be lowered in cycles by means of the level switch when the auxiliary stack carriers are retracted.
  • a further advantageous measure can consist in that the lifting frame is provided with longitudinal guides for slides each receiving an auxiliary stack carrier, which are synchronized by means of a synchronization device which is preferably designed as a cable pull.
  • the synchronization of the two auxiliary stack carriers which can be moved in opposite directions, ensures that displacement forces acting on the auxiliary stack received thereon from the beginning are mutually canceled, which has an advantageous effect on the achievable accuracy.
  • the auxiliary stack carriers can be designed as plate-shaped swords, which are expediently contoured in an arc-shaped manner in the region of their mutually facing edges and tapered like a wedge.
  • These measures not only enable the auxiliary stack to be picked up reliably, but also advantageously ensure that the auxiliary stack carriers can gently pave their way when entering the associated gap, so that even when the entry gap is not ideal, a high level of functional reliability and gentle operation are ensured are guaranteed.
  • the above-mentioned measures advantageously also enable simple generation of an air cushion, which also has an advantageous effect on achieving a gentle mode of operation.
  • the sword-shaped auxiliary stack supports can expediently be designed as sandwich plates, the interior of which is preferably divided by webs and can be connected to a compressed air source and which in the area of their upper side preferably have blow nozzles designed as ball valves.
  • the separating elements on each side can be accommodated on a slide which is adjustably accommodated on a horizontal guide arranged in a frame-fixed manner. This ensures that the separating elements not be lowered together with the lifting frame, which has an advantageous effect on the simplification of the design.
  • the pins forming the separating elements can expediently be arranged in a pivotable manner and can be lowered from their horizontal insertion direction with their front end by means of an associated pivoting device.
  • the separating elements which have been lowered in this way have a profile which is adapted to the sheet which is received on the edge thereof and which sag in the middle to the main stack, which results in a reliable entry gap for the sword-shaped auxiliary stack carriers.
  • a further advantageous measure can consist in that the drive units assigned to the separating elements can be actuated by means of a sensor that directly or indirectly scans the respectively arriving sheet. This ensures that collisions are reliably avoided.
  • vibrating side pushers can be provided in the region of the separating elements which are arranged at a fixed height. This measure also serves to increase the achievable stacking accuracy.
  • the sheets printed in a sheet-fed printing machine are deposited in the form of a stack by means of a delivery device downstream of the sheet-fed printing machine.
  • the boom on which FIGS. 1 and 2 are based consists of a portal-shaped frame 1, into which a sheet transport device provided with gripper bars 3 which are received on side chains 2 runs. This throws the sheets held by the grippers of the gripper bars 3 onto a stack receiving device arranged within the frame 1.
  • a main stack receiving device and an auxiliary stack device are provided to accomplish a non-stop operation, which are used alternatively.
  • the main stack receiving device consists of a vertically movable platform 4, which is movable by means of an associated main stack elevator, indicated here by its lifting chains 5, which can be actuated by means of a motor (not shown).
  • the platform 4 can be loaded with a pallet 6 on which a sheet stack can be received.
  • the motor of the main stack elevator can be controlled by a level switch 7, for example, designed as a capacitive probe head, so that the upper edge of the stack received on the pallet 6 is always at a constant level. To load and unload the platform 4, it is lowered to the floor level.
  • a transport device designed as a roller conveyor 8 and extending transversely to the sheet conveying direction, the drive elements of which can be controlled by sensors designed as light barriers 9.
  • the roller conveyor 8 consists of a central section 8a mounted on the platform 4, which is flanked by upstream or downstream sections for delivering a new pallet or pulling off a loaded pallet.
  • a displacement device 10 which is designed here as a cylinder-piston unit, can be provided.
  • the auxiliary stack receiving device is used to accomplish a non-stop operation when changing the stack, ie when removing a pallet loaded with a complete stack and transporting it there a new empty pallet.
  • the sheets produced during this process are picked up on the auxiliary stack receiving device in the form of a so-called auxiliary stack, which can then be placed on the empty pallet which has meanwhile been positioned on the main stack receiving device.
  • the auxiliary stack receiving device here consists of two auxiliary stack carriers 11 which can be retracted and extended in opposite directions from the side and which can be brought into a working position which is based on FIGS.
  • a lifting frame 12 which receives the two auxiliary stack carriers 11 and is guided in the lifting direction by means of a vertical guide and which can be actuated by means of an associated auxiliary elevator 13.
  • This consists of a shaft 14 bridging the boom, which can be driven by means of an associated geared motor 15 and can be extended or shortened by means of the lifting members 16 receiving the lifting frame 12.
  • the timing of the motor 15 of the auxiliary elevator when the auxiliary stack carriers are retracted can be carried out in the same way as the timing of the motor of the main stack receiving device by means of the level switch 7.
  • the lifting frame 12 is designed as a closed rectangular frame, which results in high stability and torsional rigidity.
  • the lifting frame 12 is provided in the region of its spars extending transversely to the sheet conveying direction with longitudinal guides 17, on each of which slides 18 receiving an auxiliary stack carrier 11 are slidably guided in the horizontal direction.
  • the clear width of the lifting frame 12 in the sheet conveying direction is somewhat larger than the maximum processable format length.
  • the clear width transverse to it corresponds at least to the maximum processable format width plus the maximum entry depth of the auxiliary stack carrier 11. This ensures that there is at least a free space corresponding to the maximum stack base area and thus collisions are reliably avoided.
  • the slides 18 assigned to the auxiliary stack carriers 11 can be moved synchronously in opposite directions.
  • a synchronization device formed here by a cable 19 is provided.
  • This can be coupled to a common drive device.
  • separate drive devices in the form of cylinder-piston units 20 assigned to the two slides 18 are provided.
  • an inner and an outer limit switch 21 are provided, which interact with a cam 22 received on one of the slides 18.
  • the drive devices assigned to the two synchronously movable carriages 18 are controlled by the limit switches 21.
  • the inner limit switch 21 can be arranged in a stationary manner, since the two auxiliary stack carriers 11 are retracted so far in any case be that their mutually facing edges, as shown in Figure 4, face each other with a small distance.
  • the outer limit switch 21 can be arranged so that the extended end position can be adapted to the format width being processed.
  • separating elements 23 which serve to keep an entry gap 24 open for the respectively associated auxiliary stack carrier 11 when a stack change is initiated, that is to say to act as separating aids.
  • the separating elements 23 can be designed as simple pins, which are provided here with a drop-shaped depression 25 at their front end.
  • the pins forming the separating elements 23 can be displaced in the axial direction by means of an associated drive device, here in the form of cylinder-piston units 26.
  • the pins mentioned can simply be designed as extensions of the piston rod. As a result of their low mass, the pins forming the separating elements 23 can be retracted or extended at high speed with the aid of the associated cylinder-piston units 26.
  • two V-shaped separating elements 23 are provided in the area of each stack side.
  • the separating elements 23 on each side are received on an associated slide 27 which is guided on an associated horizontal guide 28.
  • This can be attached to the machine frame 1.
  • the carriage 27 can be moved manually or by motor. The carriage 27 are adjusted so that the Separating elements 23 in their withdrawn waiting position on which FIGS. 1 and 2 are based are located with their front ends outside the stack base area and, in their retracted working position on which FIG. 3 is based, overlap the assigned stack side edge.
  • the separating elements 23 are oriented approximately horizontally in the withdrawn waiting position. In the working position on which FIG. 3 is based, the separating elements 23 are inclined with their front ends downward, so that there is a roughly adapted course to the passage of the sheets 29 supported on the edge thereof.
  • the separating elements 23 are pivotably arranged on the respectively assigned slide 27.
  • each carriage 27 is provided with a swivel frame 31 which can be swiveled by means of an associated swivel drive 30, also designed as a cylinder-piston unit, on which the associated separating elements 23, together with their respectively assigned drive elements, are received.
  • the pivoting movement of the pivot frame 31 can be limited by stops.
  • the separating elements 23, which act as a separating aid, are first removed from it brought the waiting position underlying the figures 1 and 2 into the working position underlying the figure 3. This process can take place at high speed due to the low mass of the separating elements 23, so that it can be said that the separating elements 23 are shot in.
  • the shooting-in movement is placed laterally so that the separating elements 23 shoot in during the passage of a gap between two successive sheets. The command required for this is taken from the incoming sheet itself.
  • a sensor 33 cooperating with the sheet transport device which senses the gripper bar 3 dragging the respectively arriving sheet and actuates the cylinder-piston units assigned to the separating elements 23 at the correct time.
  • the further actuation of the cylinder-piston units 30 assigned to the swivel frame 31 can be accomplished by means of a sequential circuit.
  • the separating elements 23 are shot in a horizontal orientation and then lowered.
  • the pins forming the separating elements 23 can initially rest on the surface of the stack 32 received on the main stack receiving device with their front end, which is thickened here in the form of drops.
  • the main stack receiving device With the initiation of the shooting-in process of the separating elements 23, the main stack receiving device is lowered at high speed, so that the separating elements 23 are removed from the top of the stack 32 after a short time lift off and this reaches with its upper edge below the level of the auxiliary stack carrier 11 placed in its uppermost position and in the waiting position.
  • the auxiliary stack carriers 11 are designed as plate-shaped swords, which are contoured in an arc shape in the region of their front edge and are tapered in a wedge shape in the region of this arc shaped contour.
  • the shaped pieces 34 containing the arcuate contouring and wedge-shaped taper can be used, which are simply attached to the rear area of the associated auxiliary stack carrier 11.
  • This contouring of the front ends of the auxiliary stack carriers 11 ensures that they can clear a path even if the entry gap 24 is not ideal that damage to the bottom sheet 29 of the sheet stack traversed by the auxiliary stack carriers 11 and received on the separating elements 23 would have to be feared.
  • the mutually facing ends of the two auxiliary stack carriers 11 lie opposite each other at a short distance, so that there is reliable, large-area support of the auxiliary stack 38 to be accommodated thereon.
  • the separating elements 23 are brought back into their waiting position, as can further be seen in FIG.
  • the sheet package held up to that point by the separating elements 23 is placed on the retracted auxiliary stack carrier 11.
  • the carriages 27 receiving the separating elements 23 are provided with vibratory linear pushers 35, which can be adjusted with the aid of the carriages 27 to the respectively assigned stack side edge.
  • the straight pushers 35 can be activated both when the sheet is deposited on the main stacking device and when the sheet is deposited on the auxiliary stack carriers.
  • the straight bumpers 35 are provided with recesses 36, as can be seen in FIG. 2, through which the separating elements 23 reach in the working position can. Accordingly, the separating elements 23 do not have to take part in the vibration movement of the straight pushers 35.
  • the main stack 32 which is initially lowered into the position on which FIG. 3 is based, in which the sheets 29 raised by the separating elements 23 on the edge can be supported in the region of their center on the top of the stack, until the platform 4 is in its lowest position, in which the sections of the roller conveyor 8 are aligned with one another and accordingly the pallet carrying the main stack 32 can be moved out of the feeder and a new empty pallet can be inserted into the feeder.
  • the retracted empty pallet is raised by means of the platform 4 to just below the auxiliary stack carrier 11. This position is scanned by means of a sensor 37 arranged on the lifting frame 12, here designed as a light barrier (FIGS. 1 and 3).
  • auxiliary stack carriers 11 are then extended. This process can also be triggered by sensor 37 by means of a sequential circuit.
  • the auxiliary stack 38 received on the auxiliary stack carriers 11 is placed on the empty pallet positioned below the auxiliary stack carriers 11. Since the two auxiliary stack carriers 11 also move synchronously when they are extended, it is ensured that the displacement forces resulting therefrom also cancel each other out when they are extended.
  • the auxiliary stack carriers 11 are provided with air nozzles 39 which can be supplied with air in the region of their upper side. These are designed as ball valves that close automatically and only open when the assigned ball is depressed.
  • the auxiliary stack supports 11, as can further be seen in FIG. 5, are simply constructed as sandwich plates with an upper and a lower cover plate 40, 41, which are fastened to webs 42 which act as spacers. These are designed so that the interior 43 is composed of chambers communicating with one another.
  • the air supply to the blowing nozzles 39 can already take place when the auxiliary stack carrier 11 is retracted and can be maintained until the end of the extension process.
  • it is more favorable to apply air to the auxiliary stack carriers 11 only during their entry or exit operation that is to say to activate the air supply at the start of the entry or exit operation and to passivate them again if they are appropriately packed. This minimizes air consumption and at the same time ensures that the auxiliary stack does not float during normal auxiliary stack operation.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pile Receivers (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Materials For Medical Uses (AREA)
  • Manufacturing Of Electric Cables (AREA)

Abstract

In a sheet delivery for sheet-processing machines, in particular sheet-fed printing machines, having a main pile receiving device (4) which can be operated by a main pile hoist (5) which can be cycled during normal delivery operation by a level switch (7) and a nonstop device which can be activated to carry out a pile exchange and has an auxiliary pile receiving device on which there can be received an auxiliary pile (38) which occurs during the pile exchange and, after completed pile exchange, can be deposited on the main pile receiving device (4), high productivity and operating accuracy are achieved in that the nonstop device has two auxiliary pile carriers (11) which are provided in the region of the pile lateral edges and can be brought in opposite directions from a lateral waiting position into an operating position overlapping the main pile (32) or vice versa and separating elements (23) which are allocated to said auxiliary pile carriers (11), are arranged thereabove, can be brought from a lateral waiting position into a separating position overlapping the associated pile lateral edge, in their separating positions keep open an insertion gap (24) for the respectively allocated auxiliary pile carrier (11) and can be withdrawn when an auxiliary pile carrier (11) is inserted. <IMAGE>

Description

Die Erfindung betrifft einen Bogenausleger für bogenverarbeitende Maschinen, insbesondere Bogendruckmaschinen, mit einer mittels eines bei normalem Auslegebetrieb durch einen Niveauschalter taktbaren Hauptaufzugs betätigbaren Hauptstapelaufnahmeeinrichtung und einer zur Durchführung eines Stapelwechsels aktivierbaren Nonstop-Einrichtung, die eine Hilfsstapelaufnahmeeinrichtung aufweist, auf der ein während des Stapelwechsels anfallender Hilfsstapel aufnehmbar ist, der nach erfolgtem Stapelwechsel auf die Hauptstapelaufnahmeeinrichtung absetzbar ist.The invention relates to a sheet delivery device for sheet-processing machines, in particular sheet-fed printing machines, having a main stack receiving device which can be actuated by means of a main elevator which can be actuated by a level switch during normal delivery operation, and a non-stop device which can be activated to carry out a stack change and which has an auxiliary stack receiving device on which an auxiliary stack which arises during the stack change is recordable, which can be placed on the main stack receiving device after the stack change.

Eine Anordnung dieser Art ist aus der DE-PS 1 231 721 bekannt. Bei dieser bekannten Anordnung ist zur Bildung der Hilfsstapelaufnahmeeinrichtung ein von einer im Bereich der Auslegerhinterseite angeordneten Wickelwelle abwickelbarer, mit seinen Seitenkanten in stationären Horizontalführungen laufender Rollopanzer vorgesehen. Dieser besitzt eine vergleichsweise große Masse und kann daher nur mit vergleichsweise geringer Geschwindigkeit bewegt werden. Es ist daher erforderlich, bei einer Aktivierung der Nonstop-Einrichtung die Produktionsgeschwindigkeit abzusenken. Dennoch läßt sich hierbei nicht verhindern, daß bis zur Beendigung des Einfahrvorgangs des Rollopanzers mehrere Bogen ankommen, so daß es zwangsläufig zu Relativbewegungen zwischen dem Rollopanzer und dem untersten Bogen und dementsprechend auch zu Relativbewegungen zwischen den darüber sich befindenden Bogen kommt, was zu einer Beschädigung des frischen Drucks führen kann. Dieser Nachteil wird bei der bekannten Anordnung dadurch noch verstärkt, daß mittels des Rollopanzers praktisch die ganze Stapellänge überbrückt werden muß, was sich ungünstig auf die benötigte Einfahrzeit auswirkt. Ein weiterer Nachteil der bekannten Anordnung ist darin zu sehen, daß beim Zurückziehen des Rollopanzers der hierauf aufgenommene Hilfsstapel infolge der vorhandenen Reibung verrutscht werden kann. Hinzu kommt, daß der Rollopanzer im aufgewickelten Zustand einen voluminösen Wickel bildet, der die Zugänglichkeit des Auslegers von der Auslegervorderseite her behindern kann.An arrangement of this type is known from DE-PS 1 231 721. In this known arrangement, to form the auxiliary stack receiving device, a roll-up armor is provided which can be unwound from a winding shaft arranged in the region of the rear of the delivery arm and runs with its side edges in stationary horizontal guides. This has a comparatively large mass and can therefore only be moved at a comparatively low speed. It is therefore necessary to lower the production speed when the non-stop device is activated. Nevertheless, it cannot be prevented here that several sheets arrive until the retracting operation of the roller shutter curtain, so that there are inevitably relative movements between the roller shutter curtain and the lowest arc and accordingly also relative movements between the arc above it, which leads to damage to the fresh pressure. This disadvantage is exacerbated in the known arrangement in that practically the entire stack length has to be bridged by means of the roller shutter, which has an unfavorable effect on the required running-in time. Another disadvantage of the known arrangement can be seen in the fact that when the roller curtain is pulled back, the auxiliary stack accommodated thereon can slip due to the existing friction. In addition, the roller curtain forms a voluminous roll in the wound state, which can hinder the accessibility of the boom from the front of the boom.

Weiterhin ist aus der FR-A 2 310 219 eine Auslegevorrichtung für Bogen in Druckmaschinen bekannt. Sie weist ausgangsseitig des Auslegers einschwenkbare schrägstehende Sauger zum Halten der vorauslaufenden Bogenkante und gegenüberliegend linear bewegbare schrägstehende Sauger zum Halten der hinteren Bogenkante auf. Die Sauger sollen einen Zwischenraum im Stapelbereich zum Bilden eines Hilfsstapels während des Stapelwechsels erzeugen.Furthermore, from FR-A 2 310 219 a delivery device for sheets in printing machines is known. It has, on the output side of the boom, swiveling inclined suction cups for holding the leading sheet edge and oppositely linearly movable inclined suction cups for holding the rear sheet edge. The suction cups are intended to create a space in the stack area for forming an auxiliary stack during the stack change.

Aus der US-A 2,958,431 ist eine Vorrichtung zum Schneiden und Stapeln bekannt. Sie weist ein Paar verschiebbarer Tragplatten und Anschläge für einen Bogenstapel auf. Zur Obernahme und Stapelung wird der Bogenstapel auf die Tragplatten gesetzt und von diesen durch Auseinanderfahren auf einen darunter liegenden Stapel übergeben.A device for cutting and stacking is known from US-A 2,958,431. It has a pair of sliding support plates and stops for a sheet stack. For takeover and stacking, the stack of sheets is placed on the support plates and transferred by these to a stack underneath by pulling them apart.

Aus der DE-AS 1110659 ist eine Vorrichtung zum Absetzen eines Stapels von Bögen oder Blättern auf eine Tragfläche bekannt. Sie weist in einen Stapel einschiebbare Tragglieder auf, die mit Druckluft versorgt werden, um ein Luftpolster beim Einschieben in den Stapel bzw. zum Ziehen aus dem Stapel zu bilden.From DE-AS 1110659 a device for depositing a stack of sheets or sheets on a wing is known. It has support members which can be inserted into a stack and which are supplied with compressed air in order to form an air cushion when inserted into the stack or for pulling out of the stack.

Aus der DE 37 23 113 A1 sind Vorrichtungen für einen verlustlosen Stapelwechsel insbesondere an Querschneidern in der Papier- und Kartonindustrie bekannt. Sie weisen oberhalb eines einen Hilfsstapel tragenden Stabrostes einen kurzen Hilfsrost auf, der eine Lücke für den Stabrost bilden soll. Die Bogen werden während der Betätigung des Stabrostes zur Unterbrechung der Bogenzufuhr festgeklemmt.DE 37 23 113 A1 discloses devices for a lossless stack change, in particular on cross cutters in the paper and cardboard industry. They have a short auxiliary grate above a rod grate carrying an auxiliary stack, which should form a gap for the rod grate. The sheets are clamped during the actuation of the bar grate to interrupt the sheet feed.

Hiervon ausgehend ist es daher Aufgabe der vorliegenden Erfindung, einen Bogenausleger eingangs erwähnter Art zu schaffen, der auch beim Stapelwechsel eine hohe Produktionsgeschwindigkeit ermöglicht und dennoch eine hohe Arbeitsgenauigkeit gewährleistet.Proceeding from this, it is therefore an object of the present invention to provide a sheet delivery of the type mentioned at the outset which is also high when changing stacks Production speed enables and still ensures high working accuracy.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß die Nonstop-Einrichtung zwei im Bereich der Stapelseitenkanten vorgesehene, gegenläufig von einer seitlichen Warteposition in eine den Hauptstapel übergreifende Arbeitsstellung und umgekehrt bringbare Hilfsstapelträger und diesen zugeordnete, oberhalb hiervon angeordnete, von einer seitlichen Wartestellung in eine die zugeordnete Stapelseitenkante übergreifende Trennstellung bringbare Trennelemente aufweist, die in ihrer Trennstellung einen Einfahrspalt für den jeweils zugeordneten Hilfsstapelträger offenhalten und bei eingefahrenem Hilfsstapelträger zurückziehbar sind.This object is achieved according to the invention in that the non-stop device has two auxiliary stack carriers provided in the area of the stack side edges, which can be moved in the opposite direction from a lateral waiting position into a working position spanning the main stack and vice versa, and are assigned from above and arranged from a side waiting position to one of the associated Separation position overlapping stack side edge has separable elements which, in their separating position, keep an entry gap for the respectively assigned auxiliary stack carrier and can be retracted when the auxiliary stack carrier is retracted.

Die den Hilfsstapelträgern zugeordneten Trennelemente, die als vergleichsweise massearme Stifte etc. ausgebildet sein können, lassen sich infolge ihrer geringen Masse mit hoher Geschwindigkeit bewegen. Es ist daher möglich, diese Trennelemente während des Durchgangs einer Lücke zwischen zwei Bogen mit hoher Geschwindigkeit einzuschießen. Relativbewegungen zwischen den einschießenden Trennelementen und dem hierauf aufzunehmenden Bogenmaterial sind daher nicht zu befürchten, ohne daß eine Absenkung der Produktionsgeschwindigkeit erforderlich wäre. Die in den von den Trennelementen offengehaltenen Spalt einfahrbaren Hilfsstapelträger können daher mit vergleichsweise geringer Geschwindigkeit bewegt werden, was sich vorteilhaft auf die Verringerung der Beanspruchungen des zugeordneten Bewegungsapparats sowie der Lärmentwicklung auswirkt. Da jeder der beiden, gegenläufig bewegbaren Hilfsstapelträger nur den halben Weg zurückzulegen hat, ergeben sich demnach vergleichsweise kurze Bewegungszeiten. Infolge der Gegenläufigkeit der beiden Hilfsstapelträger heben sich in vorteilhafter Weise aber auch die hiervon ausgehenden Schiebekräfte gegenseitig auf, so daß eine Verschiebung des Hilfsstapels nicht zu befürchten ist. Zudem ergibt sich durch die seitliche Anordnung der Hilfsstapelträger eine nicht unbeträchtliche Platzersparnis.The separating elements assigned to the auxiliary stack carriers, which can be designed as comparatively low-mass pins etc., can be moved at high speed due to their low mass. It is therefore possible to shoot these separating elements at high speed during the passage of a gap between two sheets. Relative movements between the shooting-in separating elements and the sheet material to be accommodated thereon are therefore not to be feared without a reduction in the production speed being necessary. The auxiliary stack carriers which can be moved into the gap kept open by the separating elements can therefore be moved at a comparatively low speed, which has an advantageous effect on reducing the stresses on the associated movement apparatus and on the development of noise. Because each of the two, in opposite directions movable auxiliary stack carrier only has to travel half way, this results in comparatively short movement times. As a result of the opposing movement of the two auxiliary stack carriers, the pushing forces resulting therefrom also cancel each other out advantageously, so that there is no fear of a displacement of the auxiliary stack. In addition, the lateral arrangement of the auxiliary stack carriers results in a not inconsiderable space saving.

Vorteilhafte Ausgestaltungen und zweckmäßige Fortbildungen der übergeordneten Maßnahmen sind in den Unteransprüchen angegeben. So können die Hilfsstapelträger in vorteilhafter Weise auf einem mittels einer Vertikalführung in Hubrichtung geführten Hubrahmen verschiebbar aufgenommen sein, der an einem Hilfsaufzug aufgehängt ist, der bei eingefahrenen Hilfsstapelträgern mittels des Niveauschalters taktweise absenkbar ist. Diese Maßnahmen stellen sicher, daß auch die Höhenzunahme des Hilfsstapels durch taktweises Absenken ausgeglichen wird, so daß die ankommenden Bogen stets dasselbe Ablegeniveau vorfinden, was sich vorteilhaft auf die erzielbare Stapelgenauigkeit und Störungsfreiheit auswirkt.Advantageous refinements and appropriate further training of the higher-level measures are specified in the subclaims. Thus, the auxiliary stack carriers can advantageously be slidably received on a lifting frame guided in the lifting direction by means of a vertical guide, which is suspended from an auxiliary elevator which can be lowered in cycles by means of the level switch when the auxiliary stack carriers are retracted. These measures ensure that the increase in height of the auxiliary stack is compensated for by cyclical lowering, so that the incoming sheets always find the same filing level, which has an advantageous effect on the achievable stacking accuracy and freedom from interference.

Eine weitere vorteilhafte Maßnahme kann darin bestehen, daß der Hubrahmen mit Längsführungen für jeweils einen Hilfsstapelträger aufnehmende Schlitten versehen ist, die mittels einer vorzugsweise als Seilzug ausgebildeten Synchronisierungseinrichtung synchronisiert sind. Die Synchronisierung der beiden gegenläufig bewegbaren Hilfsstapelträger stellt sicher, daß auf den hierauf aufgenommenen Hilfsstapel wirkende Verschiebekräfte von Anfang an gegenseitig aufgehoben werden, was sich vorteilhaft auf die erzielbare Genauigkeit auswirkt.A further advantageous measure can consist in that the lifting frame is provided with longitudinal guides for slides each receiving an auxiliary stack carrier, which are synchronized by means of a synchronization device which is preferably designed as a cable pull. The synchronization of the two auxiliary stack carriers, which can be moved in opposite directions, ensures that displacement forces acting on the auxiliary stack received thereon from the beginning are mutually canceled, which has an advantageous effect on the achievable accuracy.

In weiterer Fortbildung der übergeordneten Maßnahmen können die Hilfsstapelträger als plattenförmige Schwerter ausgebildet sein, die zweckmäßig im Bereich ihrer einander zugewandten Ränder bogenförmig konturiert und keilartig verjüngt sind. Diese Maßnahmen ermöglichen nicht nur eine zuverlässige Aufnahme des Hilfsstapels, sondern stellen in vorteilhafter Weise auch sicher, daß sich die Hilfsstapelträger beim Einfahren in den zugeordneten Spalt auf schonende Weise einen Weg bahnen können, so daß auch bei nicht idealem Einfahrspalt eine hohe Funktionssicherheit und schonende Betriebsweise gewährleistet sind. Zudem ermöglichen die genannten Maßnahmen in vorteilhafter Weise auch eine einfache Erzeugung eines Luftpolsters, was sich ebenfalls vorteilhaft auf die Erzielung einer schonenden Betriebsweise auswirkt.In a further development of the superordinate measures, the auxiliary stack carriers can be designed as plate-shaped swords, which are expediently contoured in an arc-shaped manner in the region of their mutually facing edges and tapered like a wedge. These measures not only enable the auxiliary stack to be picked up reliably, but also advantageously ensure that the auxiliary stack carriers can gently pave their way when entering the associated gap, so that even when the entry gap is not ideal, a high level of functional reliability and gentle operation are ensured are guaranteed. In addition, the above-mentioned measures advantageously also enable simple generation of an air cushion, which also has an advantageous effect on achieving a gentle mode of operation.

Zweckmäßig können die schwertförmigen Hilfsstapelträger als Sandwich-Platten ausgebildet sein, deren vorzugsweise durch Stege unterteilter Innenraum an eine Druckluftquelle anschließbar ist und die im Bereich ihrer Oberseite vorzugsweise als Kugelventile ausgebildete Blasdüsen aufweisen. Diese Maßnahmen ergeben eine einfache Bauweise.The sword-shaped auxiliary stack supports can expediently be designed as sandwich plates, the interior of which is preferably divided by webs and can be connected to a compressed air source and which in the area of their upper side preferably have blow nozzles designed as ball valves. These measures result in a simple construction.

In weiterer Fortbildung der übergeordneten Maßnahmen können die Trennelemente jeweils jeder Seite auf einem auf einer gestellfest angeordneten Horizontalführung verstellbar aufgenommenen Schlitten aufgenommen sein. Hierdurch ist sichergestellt, daß die Trennelemente nicht zusammen mit dem Hubrahmen abgesenkt werden, was sich vorteilhaft auf die Vereinfachung der Bauweise auswirkt.In a further development of the higher-level measures, the separating elements on each side can be accommodated on a slide which is adjustably accommodated on a horizontal guide arranged in a frame-fixed manner. This ensures that the separating elements not be lowered together with the lifting frame, which has an advantageous effect on the simplification of the design.

Zweckmäßig können die die Trennelemente bildenden Stifte schwenkbar angeordnet und mittels einer zugeordneten Schwenkeinrichtung von ihrer horizontalen Einsch-ießrichtung mit ihrem vorderen Ende absenkbar sein. Die so abgesenkten Trennelemente besitzen eine den randseitig hierauf aufgenommenen, in der Mitte bis zum Hauptstapel durchhängenden Bogen angepaßten Verlauf, was einen zuverlässigen Einfahrspalt für die schwertförmigen Hilfs-Stapelträger ergibt.The pins forming the separating elements can expediently be arranged in a pivotable manner and can be lowered from their horizontal insertion direction with their front end by means of an associated pivoting device. The separating elements which have been lowered in this way have a profile which is adapted to the sheet which is received on the edge thereof and which sag in the middle to the main stack, which results in a reliable entry gap for the sword-shaped auxiliary stack carriers.

Eine weitere vorteilhafte Maßnahme kann darin bestehen, daß die den Trennelementen zugeordneten Antriebsaggregate mittels eines den jeweils ankommenden Bogen direkt oder indirekt abtastenden Sensors betätigbar sind. Hierdurch wird sichergestellt, daß Kollisionen zuverlässig vermieden werden.A further advantageous measure can consist in that the drive units assigned to the separating elements can be actuated by means of a sensor that directly or indirectly scans the respectively arriving sheet. This ensures that collisions are reliably avoided.

Zweckmäßig können im Bereich der in der Höhe stationär angeordneten Trennelemente vibrierend antreibbare Seitenstoßer vorgesehen sein. Auch diese Maßnahme dient der Erhöhung der erzielbaren Stapelgenauigkeit.Expediently, vibrating side pushers can be provided in the region of the separating elements which are arranged at a fixed height. This measure also serves to increase the achievable stacking accuracy.

Weitere vorteilhafte Ausgestaltungen und zweckmäßige Fortbildungen der übergeordneten Maßnahmen ergeben sich aus der nachstehenden Beschreibung eines bevorzugten Ausführungsbeispiels anhand der Zeichnung in Verbindung mit den restlichen Unteransprüchen.Further advantageous refinements and expedient further developments of the superordinate measures result from the following description of a preferred exemplary embodiment with reference to the drawing in conjunction with the remaining subclaims.

In der Zeichnung zeigen:

Figur 1
eine Frontansicht des erfindungsgemäßen Auslegers, teilweise im Schnitt,
Figur 2
eine Draufsicht auf den erfindungsgemäßen Ausleger,
Figur 3
eine vergrößerte Darstellung der eingefahrenen Trennelemente,
Figur 4
eine vergrößerte Darstellung der eingefahrenen Hilfsstapelträger und
Figur 5
einen Teilschnitt durch einen Hilfsstapelträger.
The drawing shows:
Figure 1
2 shows a front view of the boom according to the invention, partly in section,
Figure 2
a plan view of the boom according to the invention,
Figure 3
an enlarged view of the retracted partition elements,
Figure 4
an enlarged view of the retracted auxiliary stack carrier and
Figure 5
a partial section through an auxiliary stack carrier.

Die in einer Bogendruckmaschine bedruckten Bogen werden mittels eines der Bogendruckmaschine nachgeordneten Auslegers in Form eines Stapels abgelegt. Der den Figuren 1 und 2 zugrundeliegende Ausleger besteht aus einem portalförmigen Gestell 1, in das eine mit an seitlichen Ketten 2 aufgenommenen Greiferleisten 3 versehene Bogentransporteinrichtung einläuft. Diese wirft die von den Greifern der Greiferleisten 3 gehaltenen Bogen auf eine innerhalb des Gestells 1 angeordnete Stapelaufnahmeeinrichtung ab. Im vorliegenden Fall sind zur Bewerkstelligung eines Nonstop-Betriebs eine Hauptstapelaufnahmeeinrichtung und eine Hilfsstapeleinrichtung vorgesehen, die alternativ zum Einsatz kommen.The sheets printed in a sheet-fed printing machine are deposited in the form of a stack by means of a delivery device downstream of the sheet-fed printing machine. The boom on which FIGS. 1 and 2 are based consists of a portal-shaped frame 1, into which a sheet transport device provided with gripper bars 3 which are received on side chains 2 runs. This throws the sheets held by the grippers of the gripper bars 3 onto a stack receiving device arranged within the frame 1. In the present case, a main stack receiving device and an auxiliary stack device are provided to accomplish a non-stop operation, which are used alternatively.

Die Hauptstapelaufnahmeeinrichtung besteht aus einer vertikal bewegbaren Plattform 4, die mittels eines zugeordneten, hier durch seine Hubketten 5, die mittels eines nicht näher dargestellten Motors betätigbar sind, angedeuteten Hauptstapelaufzugs bewegbar ist. Die Plattform 4 ist mit einer Palette 6 beschickbar, auf der ein Bogenstapel aufnehmbar ist. Der nicht dargestellte Motor des Hauptstapelaufzugs ist durch einen beispielsweise als kapazitiver Tastkopf ausgebildeten Niveauschalter 7 so steuerbar, daß sich die Oberkante des auf der Palette 6 aufgenommenen Stapels stets auf gleichbleibendem Niveau befindet. Zum Be- und Entladen der Plattform 4 wird diese auf Flurniveau abgesenkt. Zum seitlichen Ausfahren einer mit einem Stapel beladenen Palette bzw. zum seitlichen Einfahren einer neuen, leeren Palette, ist hier eine als Rollenbahn 8 ausgebildete, quer zur Bogenförderrichtung verlaufende Transporteinrichtung vorgesehen, deren Antriebselemente durch als Lichtschranken 9 ausgebildete Sensoren gesteuert werden können. Die Rollenbahn 8 besteht aus einem mittleren, auf der Plattform 4 montierten Abschnitt 8a, der von vor- bzw. nachgeordneten Abschnitten zum Anliefern einer neuen Palette bzw. Abziehen einer beladenen Palette flankiert ist. Zum Verrücken einer in den mittleren, auslegerfesten Abschnitt 8a der Rollenbahn eingelaufenen Palette kann eine hier als Zylinder-Kolbenaggregat ausgebildete Verschiebeeinrichtung 10 vorgesehen sein.The main stack receiving device consists of a vertically movable platform 4, which is movable by means of an associated main stack elevator, indicated here by its lifting chains 5, which can be actuated by means of a motor (not shown). The platform 4 can be loaded with a pallet 6 on which a sheet stack can be received. The motor of the main stack elevator, not shown, can be controlled by a level switch 7, for example, designed as a capacitive probe head, so that the upper edge of the stack received on the pallet 6 is always at a constant level. To load and unload the platform 4, it is lowered to the floor level. For the lateral extension of a pallet loaded with a stack or the lateral insertion of a new, empty pallet, a transport device designed as a roller conveyor 8 and extending transversely to the sheet conveying direction is provided, the drive elements of which can be controlled by sensors designed as light barriers 9. The roller conveyor 8 consists of a central section 8a mounted on the platform 4, which is flanked by upstream or downstream sections for delivering a new pallet or pulling off a loaded pallet. To displace a pallet that has run into the middle section 8a of the roller conveyor that is fixed to the boom, a displacement device 10, which is designed here as a cylinder-piston unit, can be provided.

Die Hilfsstapelaufnahmeeinrichtung dient, wie schon erwähnt, zur Bewerkstelligung eines Nonstop-Betriebs beim Stapelwechsel, d.h. beim Abtransport einer mit einem vollständigen Stapel beladenen Palette und Antransport einer neuen Leerpalette. Die während dieses Vorgangs anfallenden Bögen werden auf der Hilfsstapelaufnahmeeinrichtung in Form eines sogenannten Hilfsstapels aufgenommen, der anschließend auf die zwischenzeitlich auf der Hauptstapelaufnahmeeinrichtung in Stellung gebrachten Leerpalette absetzbar ist. Die Hilfsstapelaufnahmeeinrichtung besteht hier aus zwei von der Seite gegenläufig ein- und ausfahrbaren Hilfsstapelträgern 11, die von einer den Figuren 1 und 2 zugrundeliegenden, die Stapelgrundfläche flankierenden, seitlichen Warteposition in eine die Stapelgrundfläche übergreifende Arbeitsstellung gebracht werden können, die der Figur 4 zugrundeliegt.As already mentioned, the auxiliary stack receiving device is used to accomplish a non-stop operation when changing the stack, ie when removing a pallet loaded with a complete stack and transporting it there a new empty pallet. The sheets produced during this process are picked up on the auxiliary stack receiving device in the form of a so-called auxiliary stack, which can then be placed on the empty pallet which has meanwhile been positioned on the main stack receiving device. The auxiliary stack receiving device here consists of two auxiliary stack carriers 11 which can be retracted and extended in opposite directions from the side and which can be brought into a working position which is based on FIGS.

Die beiden Hilfsstapelträger 11 sind zur Bewerkstelligung eines gleichbleibenden Niveaus der Stapeloberkante des Hilfsstapels ebenso wie die Plattform 4 taktweise absenkbar. Hierzu ist ein die beiden Hilfsstapelträger 11 aufnehmender, mittels einer Vertikalführung in Hubrichtung geführter Hubrahmen 12 vorgesehen, der mittels eines zugeordneten Hilfsaufzugs 13 betätigbar ist. Dieser besteht hier aus einer den Ausleger überbrückenden Welle 14, die mittels eines zugeordneten Getriebemotors 15 antreibbar ist und mittels der den Hubrahmen 12 aufnehmende Huborgane 16 verlängerbar bzw. verkürzbar sind. Die Taktung des Motors 15 des Hilfsaufzugs bei eingefahrenen Hilfsstapelträgern kann in derselben Weise wie die Taktung des Motors der Hauptstapelaufnahmeeinrichtung mittels des Niveauschalters 7 erfolgen.To achieve a constant level of the top edge of the stack of the auxiliary stack as well as the platform 4, the two auxiliary stack carriers 11 can be lowered in cycles. For this purpose, a lifting frame 12 is provided which receives the two auxiliary stack carriers 11 and is guided in the lifting direction by means of a vertical guide and which can be actuated by means of an associated auxiliary elevator 13. This consists of a shaft 14 bridging the boom, which can be driven by means of an associated geared motor 15 and can be extended or shortened by means of the lifting members 16 receiving the lifting frame 12. The timing of the motor 15 of the auxiliary elevator when the auxiliary stack carriers are retracted can be carried out in the same way as the timing of the motor of the main stack receiving device by means of the level switch 7.

Der Hubrahmen 12 ist, wie am besten aus Figur 2 erkennbar ist, als geschlossener Rechteckrahmen ausgebildet, was eine hohe Stabilität und Verwindungssteifigkeit ergibt. Der Hubrahmen 12 ist im Bereich seiner quer zur Bogenförderrichtung verlaufenden Holme mit Längsführungen 17 versehen, auf denen jeweils einen Hilfsstapelträger 11 aufnehmende Schlitten 18 in horizontaler Richtung verschiebbar geführt sind. Die lichte Weite des Hubrahmens 12 in Bogenförderrichtung ist etwas größer als die maximal verarbeitbare Formatlänge. Die lichte Weite quer dazu entspricht zumindest der maximal verarbeitbaren Formatbreite zuzüglich der maximalen Einfahrtiefe der Hilfsstapelträger 11. Hierdurch ist sichergestellt, daß sich ein zumindest der maximalen Stapelgrundfläche entsprechender Freiraum ergibt und damit Kollisionen zuverlässig unterbleiben. Die den Hilfsstapelträgern 11 zugeordneten Schlitten 18 sind gegenläufig synchron bewegbar. Hierzu ist eine hier durch einen Seilzug 19 gebildete Synchronisierungseinrichtung vorgesehen. Diese kann mit einer gemeinsamen Antriebseinrichtung gekuppelt sein. Im dargestellten Beispiel sind den beiden Schlitten 18 zugeordnete, separate Antriebseinrichtungen in Form von Zylinder-Kolbenaggregaten 20 vorgesehen. Zur Beendigung der Ein- bzw. Ausfahrbewegung der Hilfsstapelträger 11 sind ein innerer und ein äußerer Endschalter 21 vorgesehen, die mit einer auf einem der Schlitten 18 aufgenommenen Nocke 22 zusammenwirken. Durch die Endschalter 21 werden die den beiden synchron bewegbaren Schlitten 18 zugeordneten Antriebseinrichtungen gesteuert. Der innere Endschalter 21 kann stationär angeordnet sein, da die beiden Hilfsstapelträger 11 in jedem Falle so weit eingefahren werden, daß sich ihre einander zugewandten Kanten, wie Figur 4 zeigt, mit geringem Abstand gegenüberstehen. Der äußere Endschalter 21 kann einstellbar angeordnet sein, so daß die Ausfahrendstellung der jeweils verarbeiteten Formatbreite anpaßbar ist.As can best be seen from FIG. 2, the lifting frame 12 is designed as a closed rectangular frame, which results in high stability and torsional rigidity. The lifting frame 12 is provided in the region of its spars extending transversely to the sheet conveying direction with longitudinal guides 17, on each of which slides 18 receiving an auxiliary stack carrier 11 are slidably guided in the horizontal direction. The clear width of the lifting frame 12 in the sheet conveying direction is somewhat larger than the maximum processable format length. The clear width transverse to it corresponds at least to the maximum processable format width plus the maximum entry depth of the auxiliary stack carrier 11. This ensures that there is at least a free space corresponding to the maximum stack base area and thus collisions are reliably avoided. The slides 18 assigned to the auxiliary stack carriers 11 can be moved synchronously in opposite directions. For this purpose, a synchronization device formed here by a cable 19 is provided. This can be coupled to a common drive device. In the example shown, separate drive devices in the form of cylinder-piston units 20 assigned to the two slides 18 are provided. To terminate the retraction or extension movement of the auxiliary stack carriers 11, an inner and an outer limit switch 21 are provided, which interact with a cam 22 received on one of the slides 18. The drive devices assigned to the two synchronously movable carriages 18 are controlled by the limit switches 21. The inner limit switch 21 can be arranged in a stationary manner, since the two auxiliary stack carriers 11 are retracted so far in any case be that their mutually facing edges, as shown in Figure 4, face each other with a small distance. The outer limit switch 21 can be arranged so that the extended end position can be adapted to the format width being processed.

Oberhalb der Hilfsstapelträger 11 sind, wie am besten aus Figur 3 erkennbar ist, diesen zugeordnete Trennelemente 23 vorgesehen, die dazu dienen, bei der Einleitung eines Stapelwechsels einen Einfahrspalt 24 für den jeweils zugeordneten Hilfsstapelträger 11 offenzuhalten, also als Trennhilfen zu fungieren. Die Trennelemente 23 können als einfache Stifte ausgebildet sein, die hier an ihrem vorderen Ende mit einer tropfenförmigen Vertiefung 25 versehen sind. Die die Trennelemente 23 bildenden Stifte sind mittels zugeordneter Antriebseinrichtung gen, hier in Form von Zylinder-Kolbenaggregaten 26, in axialer Richtung verschiebbar. Die genannten Stifte können dabei einfach als Verlängerungen der Kolbenstange ausgebildet sein. Infolge ihrer geringen Masse können die die Trennelemente 23 bildenden Stifte mit Hilfe der zugeordneten Zylinder-Kolbenaggregate 26 mit hoher Geschwindigkeit ein- bzw. ausgefahren werden. Im Bereich jeder Stapelseite sind, wie Figur 2 zeigt, jeweils zwei V-förmig gegeneinander gespreizte Trennelemente 23 vorgesehen. Die Trennelemente 23 jeder Seite sind auf einem zugeordneten Schlitten 27 aufgenommen, der auf einer zugeordneten Horizontalführung 28 geführt ist. Diese kann am Maschinengestell 1 befestigt sein. Die Verschiebung der Schlitten 27 kann händisch oder motorisch erfolgen. Die Schlitten 27 werden so eingestellt, daß sich die Trennelemente 23 in ihrer den Figuren 1 und 2 zugrundeliegenden, zurückgezogenen Wartestellung mit ihrem vorderen Ende außerhalb der Stapelgrundfläche befinden und in ihrer eingefahrenen, der Figur 3 zugrundeliegenden Arbeitsstellung, die zugeordnete Stapelseitenkante übergreifen.Above the auxiliary stack carrier 11, as can best be seen from FIG. 3, there are provided separating elements 23 which serve to keep an entry gap 24 open for the respectively associated auxiliary stack carrier 11 when a stack change is initiated, that is to say to act as separating aids. The separating elements 23 can be designed as simple pins, which are provided here with a drop-shaped depression 25 at their front end. The pins forming the separating elements 23 can be displaced in the axial direction by means of an associated drive device, here in the form of cylinder-piston units 26. The pins mentioned can simply be designed as extensions of the piston rod. As a result of their low mass, the pins forming the separating elements 23 can be retracted or extended at high speed with the aid of the associated cylinder-piston units 26. As shown in FIG. 2, two V-shaped separating elements 23 are provided in the area of each stack side. The separating elements 23 on each side are received on an associated slide 27 which is guided on an associated horizontal guide 28. This can be attached to the machine frame 1. The carriage 27 can be moved manually or by motor. The carriage 27 are adjusted so that the Separating elements 23 in their withdrawn waiting position on which FIGS. 1 and 2 are based are located with their front ends outside the stack base area and, in their retracted working position on which FIG. 3 is based, overlap the assigned stack side edge.

Die Trennelemente 23 sind, wie Figur 1 erkennen läßt, in der zurückgezogenen Wartestellung etwa waagrecht ausgerichtet. In der der Figur 3 zugrundeliegenden Arbeitsstellung sind die Trennelemente 23 mit ihrem vorderen Ende nach unten geneigt, so daß sich ein dem Durchgang der randseitig hiervon abgestützten Bogen 29 in etwa angepaßter Verlauf ergibt. Hierzu sind die Trennelemente 23 schwenkbar auf dem jeweils zugeordneten Schlitten 27 angeordnet. Im dargestellten Beispiel ist hierzu jeder Schlitten 27 mit einem mittels eines zugeordneten, ebenfalls als Zylinder-Kolbenaggregat ausgebildeten Schwenkantrieb 30 schwenkbaren Schwenkrahmen 31 versehen, auf dem die zugeordneten Trennelemente 23 samt ihrem jeweils zugeordneten Antriebselementen aufgenommen sind. Die Schwenkbewegung der Schwenkrahmen 31 kann durch Anschläge begrenzt sein.As can be seen in FIG. 1, the separating elements 23 are oriented approximately horizontally in the withdrawn waiting position. In the working position on which FIG. 3 is based, the separating elements 23 are inclined with their front ends downward, so that there is a roughly adapted course to the passage of the sheets 29 supported on the edge thereof. For this purpose, the separating elements 23 are pivotably arranged on the respectively assigned slide 27. In the example shown, for this purpose each carriage 27 is provided with a swivel frame 31 which can be swiveled by means of an associated swivel drive 30, also designed as a cylinder-piston unit, on which the associated separating elements 23, together with their respectively assigned drive elements, are received. The pivoting movement of the pivot frame 31 can be limited by stops.

Beim Befehl "Stapelwechsel", der erfolgt, wenn der auf der Hauptstapelaufnahmeeinrichtung aufgenommene Stapel 32 eine bestimmte Höhe erreicht hat, die mittels eines geeigneten Sensors feststellbar ist, werden zunächst die als Trennhilfe fungierenden Trennelemente 23 von ihrer den Figuren 1 und 2 zugrundeliegenden Warteposition in die der Figur 3 zugrundeliegende Arbeitsposition gebracht. Dieser Vorgang kann infolge der geringen Masse der Trennelemente 23 mit hoher Geschwindigkeit erfolgen, so daß von einem Einschießen der Trennelemente 23 gesprochen werden kann. Zur Vermeidung von Kollisionen der einschießenden Trennelemente 23 mit einem ankommenden Bogen, wird die Einschießbewegung seitlich so gelegt, daß die Trennelemente 23 während des Durchgangs einer Lücke zwischen zwei aufeinanderfolgenden Bogen einschießen. Der hierzu benötigte Befehl wird vom ankommenden Bogen selbst abgenommen. Hierzu ist im dargestellten Ausführungsbeispiel, wie Figur 1 zeigt, ein mit der Bogentransporteinrichtung zusammenwirkender Sensor 33 vorgesehen, der die den jeweils ankommenden Bogen schleppende Greiferleiste 3 abtastet und die den Trennelementen 23 zugeordneten Zylinder-Kolbenaggregate zeitlich richtig betätigt. Die weitere Betätigung der den Schwenkrahmen 31 zugeordneten Zylinder-Kolbenaggregate 30 kann mittels einer Folgeschaltung bewerkstelligt werden.With the "stack change" command, which occurs when the stack 32 received on the main stack receiving device has reached a certain height, which can be determined by means of a suitable sensor, the separating elements 23, which act as a separating aid, are first removed from it brought the waiting position underlying the figures 1 and 2 into the working position underlying the figure 3. This process can take place at high speed due to the low mass of the separating elements 23, so that it can be said that the separating elements 23 are shot in. In order to avoid collisions of the shooting-in separating elements 23 with an incoming sheet, the shooting-in movement is placed laterally so that the separating elements 23 shoot in during the passage of a gap between two successive sheets. The command required for this is taken from the incoming sheet itself. For this purpose, in the exemplary embodiment shown, as shown in FIG. 1, a sensor 33 cooperating with the sheet transport device is provided, which senses the gripper bar 3 dragging the respectively arriving sheet and actuates the cylinder-piston units assigned to the separating elements 23 at the correct time. The further actuation of the cylinder-piston units 30 assigned to the swivel frame 31 can be accomplished by means of a sequential circuit.

Die Trennelemente 23 werden in horizontaler Ausrichtung eingeschossen und anschließend abgesenkt. Die die Trennelemente 23 bildenden Stifte können dabei mit ihrem vorderen, hier tropfenförmig verdickten Ende, zunächst noch auf der Oberfläche des auf der Hauptstapelaufnahmeeinrichtung aufgenommenen Stapels 32 zur Auflage kommen. Mit der Einleitung des Einschießvorgangs der Trennelemente 23 wird die Hauptstapelaufnahmeeinrichtung im Schnellgang abgesenkt, so daß die Trennelemente 23 bereits nach kurzer Zeit von der Oberseite des Stapels 32 abheben und dieser mit seiner Oberkante unter das Niveau der in ihre oberste Stellung gebrachten, in der Wartestellung sich befindenden Hilfsstapelträger 11 gelangt.The separating elements 23 are shot in a horizontal orientation and then lowered. The pins forming the separating elements 23 can initially rest on the surface of the stack 32 received on the main stack receiving device with their front end, which is thickened here in the form of drops. With the initiation of the shooting-in process of the separating elements 23, the main stack receiving device is lowered at high speed, so that the separating elements 23 are removed from the top of the stack 32 after a short time lift off and this reaches with its upper edge below the level of the auxiliary stack carrier 11 placed in its uppermost position and in the waiting position.

Die nach dem Einschießen der Trennelemente 23 anfallenden Bogen 29 werden, wie Figur 3 anschaulich erkennen läßt, mit ihrem Rand hochgehalten. Der mittlere Bereich der Bogen 23 kann dabei noch auf der Oberseite des Stapels 32 aufliegen. Hierdurch entsteht der weiter oben schon erwähnte, keilförmige Einfahrspalt 24, in den die Hilfsstapelträger 11 kollisionsfrei einfahren können, wie in Figur 3 durch gestrichelte Linien angedeutet ist. Diese Einfahrbewegung kann vergleichsweise langsam erfolgen, da die während des Einfahrvorgangs anfallenden Bogen 29 durch die Trennelemente 23 zumindest randseitig hochgehalten werden. Infolge der synchronen, gegenläufigen Bewegung der beiden Hilfsstapelträger 11 heben sich die hiervon ausgehenden Verschiebekräfte gegenseitig auf, so daß eine Verschiebung der Bogen 29 unterbleibt.The arches 29 obtained after the separating elements 23 are shot in, as can be clearly seen in FIG. 3, are held up with their edges. The middle area of the sheets 23 can still rest on the top of the stack 32. This creates the wedge-shaped entry gap 24 already mentioned above, into which the auxiliary stack carriers 11 can enter without collisions, as is indicated in FIG. 3 by dashed lines. This retraction movement can take place comparatively slowly, since the sheets 29 that occur during the retraction process are held up by the separating elements 23 at least on the edge side. As a result of the synchronous, opposite movement of the two auxiliary stack carriers 11, the displacement forces resulting therefrom cancel each other out, so that the sheets 29 are not displaced.

Die Hilfsstapelträger 11 sind, wie am besten aus Figur 2 erkennbar ist, als plattenförmige Schwerter ausgebildet, die im Bereich ihrer Vorderkante bogenförmig konturiert und im Bereich dieser bogenförmigen Konturierung keilförmig verjüngt sind. Zur Erzielung einer einfachen Herstellung können die bogenförmige Konturierung und keilförmige Verjüngung enthaltende Formstücke 34 Verwendung finden, die einfach an den rückwärtigen Bereich des jeweils zugeordneten Hilfsstapelträgers 11 angesetzt sind. Diese Konturierung der vorderen Enden der Hilfsstapelträger 11 stellt sicher, daß sich diese auch bei nicht idealem Einfahrspalt 24 einen Weg bahnen können, ohne daß eine Beschädigung des jeweils untersten Bogens 29 des von den Hilfsstapelträgern 11 unterfahrenen, auf den Trennelementen 23 aufgenommenen Bogenpakets zu befürchten wäre. In der eingefahrenen Stellung liegen sich, wie Figur 4 zeigt, die einander zugewandten Enden der beiden Hilfsstapelträger 11 mit geringem Abstand gegenüber, so daß sich eine zuverlässige, großfläche Abstützung des hierauf aufzunehmenden Hilfsstapels 38 ergibt.As can best be seen from FIG. 2, the auxiliary stack carriers 11 are designed as plate-shaped swords, which are contoured in an arc shape in the region of their front edge and are tapered in a wedge shape in the region of this arc shaped contour. In order to achieve simple manufacture, the shaped pieces 34 containing the arcuate contouring and wedge-shaped taper can be used, which are simply attached to the rear area of the associated auxiliary stack carrier 11. This contouring of the front ends of the auxiliary stack carriers 11 ensures that they can clear a path even if the entry gap 24 is not ideal that damage to the bottom sheet 29 of the sheet stack traversed by the auxiliary stack carriers 11 and received on the separating elements 23 would have to be feared. In the retracted position, as shown in FIG. 4, the mutually facing ends of the two auxiliary stack carriers 11 lie opposite each other at a short distance, so that there is reliable, large-area support of the auxiliary stack 38 to be accommodated thereon.

Nach dem Einfahren der Hilfsstapelträger 11 werden die Trennelemente 23, wie Figur 4 weiter erkennen läßt, in ihre Wartestellung zurückgebracht. Das bis dahin von den Trennelementen 23 hochgehaltene Bogenpaket wird dabei auf die eingefahrenen Hilfsstapelträger 11 abgelegt. Dasselbe gilt für die nachfolgenden Bogen. Auf diese Weise entsteht der Hilfsstapel 38, dessen Oberkante, wie weiter oben schon erwähnt, durch Absenken des die Hilfsstapelträger 11 enthaltenden Hubrahmens 12 auf gleichbleibendem Niveau gehalten wird.After the auxiliary stack carrier 11 has been retracted, the separating elements 23 are brought back into their waiting position, as can further be seen in FIG. The sheet package held up to that point by the separating elements 23 is placed on the retracted auxiliary stack carrier 11. The same applies to the following sheets. This creates the auxiliary stack 38, the upper edge of which, as already mentioned above, is kept at a constant level by lowering the lifting frame 12 containing the auxiliary stack carriers 11.

Zur Erzielung einer hohen Stapelgenauigkeit sind hier die die Trennelemente 23 aufnehmenden Schlitten 27 mit vibrierend antreibbaren Geradstoßern 35 versehen, die mit Hilfe der Schlitten 27 auf die jeweils zugeordnete Stapelseitenkante einstellbar sind. Die Geradstoßer 35 können sowohl bei der Bogenablage auf der Hauptstapeleinrichtung als auch bei der Bogenablage auf den Hilfsstapelträgern aktiviert sein. Im dargestellten Beispiel sind die Geradstoßer 35, wie Figur 2 weiter erkennen läßt, mit Ausnehmungen 36 versehen, durch welche die Trennelemente 23 in der Arbeitsstellung hindurchgreifen können. Die Trennelemente 23 brauchen dementsprechend die Vibrationsbewegung der Geradstoßer 35 nicht mitzumachen.In order to achieve a high stacking accuracy, the carriages 27 receiving the separating elements 23 are provided with vibratory linear pushers 35, which can be adjusted with the aid of the carriages 27 to the respectively assigned stack side edge. The straight pushers 35 can be activated both when the sheet is deposited on the main stacking device and when the sheet is deposited on the auxiliary stack carriers. In the example shown, the straight bumpers 35 are provided with recesses 36, as can be seen in FIG. 2, through which the separating elements 23 reach in the working position can. Accordingly, the separating elements 23 do not have to take part in the vibration movement of the straight pushers 35.

Nach dem Einfahren der Hilfsstapelträger 11 wird der zunächst in die der Figur 3 zugrundeliegende Position, in welcher sich die von den Trennelementen 23 randseitig angehobenen Bogen 29 im Bereich ihrer Mitte auf der Stapeloberseite abstützen können, abgesenkte Hauptstapel 32 weiter abgesenkt, bis sich die Plattform 4 in ihrer untersten Stellung befindet, in welcher die Abschnitte der Rollenbahn 8 miteinander fluchten und dementsprechend die den Hauptstapel 32 tragende Palette aus dem Anleger ausgefahren und eine neue Leerpalette in den Anleger eingefahren werden können. Die eingefahrene Leerpalette wird mittels der Plattform 4 bis dicht unterhalb der Hilfsstapelträger 11 angehoben. Diese Position wird mittels eines auf dem Hubrahmen 12 angeordneten, hier als Lichtschranke ausgebildeten Sensors 37 abgetastet (Figuren 1 und 3). Sobald die Leerpalette die Höhe des Sensors 37 erreicht, schaltet dieser die der Plattform 4 zugeordnete Hubeinrichtung ab. Danach werden die Hilfsstapelträger 11 ausgefahren. Dieser Vorgang kann mittels einer Folgeschaltung ebenfalls vom Sensor 37 ausgelöst werden. Dabei wird der auf den Hilfsstapelträgern 11 aufgenommene Hilfsstapel 38 auf die unterhalb der Hilfsstapelträger 11 in Stellung gebrachte Leerpalette abgelegt. Da sich die beiden Hilfsstapelträger 11 auch beim Ausfahren synchron bewegen, ist sichergestellt, daß sich die hiervon ausgehenden Verschiebekräfte auch beim Ausfahren gegenseitig aufheben.After the auxiliary stack carrier 11 has been retracted, the main stack 32, which is initially lowered into the position on which FIG. 3 is based, in which the sheets 29 raised by the separating elements 23 on the edge can be supported in the region of their center on the top of the stack, until the platform 4 is in its lowest position, in which the sections of the roller conveyor 8 are aligned with one another and accordingly the pallet carrying the main stack 32 can be moved out of the feeder and a new empty pallet can be inserted into the feeder. The retracted empty pallet is raised by means of the platform 4 to just below the auxiliary stack carrier 11. This position is scanned by means of a sensor 37 arranged on the lifting frame 12, here designed as a light barrier (FIGS. 1 and 3). As soon as the empty pallet reaches the height of the sensor 37, this switches off the lifting device assigned to the platform 4. The auxiliary stack carriers 11 are then extended. This process can also be triggered by sensor 37 by means of a sequential circuit. The auxiliary stack 38 received on the auxiliary stack carriers 11 is placed on the empty pallet positioned below the auxiliary stack carriers 11. Since the two auxiliary stack carriers 11 also move synchronously when they are extended, it is ensured that the displacement forces resulting therefrom also cancel each other out when they are extended.

Um die Reibung zwischen den Hilfsstapelträgern 11 und dem Hilfsstapel 38 beim Ein- bzw. Ausfahrvorgang so gering wie möglich zu halten, wird ein Luftpolster erzeugt. Hierzu sind die Hilfsstapelträger 11, wie aus Figur 5 erkennbar ist, im Bereich ihrer Oberseite mit mit Luft versorgbaren Blasdüsen 39 versehen. Diese sind hier als Kugelventile ausgebildet, die selbsttätig schließen und nur öffnen, wenn die zugeordnete Kugel niedergedrückt wird. Zur Bewerkstelligung einer einfachen Luftversorgung der Blasdüsen 39 sind die Hilfsstapelträger 11, wie Figur 5 weiter erkennen läßt, einfach als Sandwich-Platten mit einem oberen und einem unteren Deckblech 40, 41 ausgebildet, die an als Distanzhalter fungierenden Stegen 42 befestigt sind. Diese sind so ausgebildet, daß sich der Innenraum 43 aus miteinander kommunizierenden Kammern zusammensetzt. Der von den Deckblechen 40, 41 ausgebildet, die an als Distanzhalter fungierenden Stegen 42 befestigt sind. Diese sind so ausgebildet, daß sich der Innenraum 43 aus miteinander kommunizierenden Kammern zusammensetzt. Der von den Deckblechen 40, 41 begrenzte Innenraum 43, der über eine Leitung 44 mit einer Druckluftquelle verbunden ist, kann dementsprechend als Luftverteiler für sämtliche Blasdüsen 39 fungieren. Die Luftbeaufschlagung der Blasdüsen 39 kann bereits beim Einfahren der Hilfsstapelträger 11 erfolgen und bis zur Beendigung des Ausfahrvorgangs beibehalten werden. Günstiger ist es jedoch, die Hilfsstapelträger 11 nur während ihres Ein- bzw. Ausfahrvorgangs mit Luft zu beaufschlagen, also die Luftbeaufschlagung bei Beginn des Ein- bzw. Ausfahrvorgangs zu aktivieren und bei entsprechender Beedigung wieder zu passivieren. Hierdurch wird der Luftverbrauch minimiert und gleichzeitig sichergestellt, daß der Hilfsstapel während des normalen Hilfsstapelbetriebs nicht schwimmt.In order to keep the friction between the auxiliary stack carriers 11 and the auxiliary stack 38 as low as possible during the retraction or extension process, an air cushion is generated. For this purpose, the auxiliary stack carriers 11, as can be seen from FIG. 5, are provided with air nozzles 39 which can be supplied with air in the region of their upper side. These are designed as ball valves that close automatically and only open when the assigned ball is depressed. To accomplish a simple air supply to the blowing nozzles 39, the auxiliary stack supports 11, as can further be seen in FIG. 5, are simply constructed as sandwich plates with an upper and a lower cover plate 40, 41, which are fastened to webs 42 which act as spacers. These are designed so that the interior 43 is composed of chambers communicating with one another. The formed by the cover plates 40, 41, which are attached to webs 42 which act as spacers. These are designed so that the interior 43 is composed of chambers communicating with one another. The interior 43 delimited by the cover plates 40, 41, which is connected to a compressed air source via a line 44, can accordingly function as an air distributor for all blowing nozzles 39. The air supply to the blowing nozzles 39 can already take place when the auxiliary stack carrier 11 is retracted and can be maintained until the end of the extension process. However, it is more favorable to apply air to the auxiliary stack carriers 11 only during their entry or exit operation, that is to say to activate the air supply at the start of the entry or exit operation and to passivate them again if they are appropriately packed. This minimizes air consumption and at the same time ensures that the auxiliary stack does not float during normal auxiliary stack operation.

Claims (23)

  1. Sheet delivery for sheet treating machines, particularly sheet printing presses, with a main pile receiving unit (4) actuatable by means of a main pile drive (5) synchronisable in normal delivery operation by a level switch (7), and a non-stop device which can be activated to carry out a pile change, which has an auxiliary pile receiving device with at least one anxiliary pile carrier (11) on to which an auxiliary pile (38) which arises during the pile change could be taken up, which, after pile change has been achieved, can be deposited on the main pile receiving device (4), and arranged above the auxiliary pile carrier (11) separating elements bringable from a waiting position into a separating position intersecting a respective pile side edge, which, in their separating position, hold open an introduction slot for the auxiliary pile carrier (11), and with the auxiliary pile carrier (11) moved in can be retracted, characterised in that there are provided two auxiliary pile carriers (11) arranged in the region of the pile side edges and bringable in oppositely running directions from a lateral waiting position into a working position intersecting the main pile (32) and vice versa, that the auxiliary pile carriers (11) are constructed plate shaped and are tapered on their edges turned towards one another and have blowing nozzles (39) in their upper side and that the separating element (23) has a horizontal guide (28) as well as a swivel device (30) arranged thereto in such a fashion that after horizontal introduction into the separating position, they can be lowered with their front ends.
  2. Sheet delivery according to Claim 1, characterised in that the auxiliary pile carrier (11) is shiftably taken up on a lifting frame (12) guided by means of a vertical guide in the vertical direction, which is suspended on an auxiliary pile lift (13), which, with the auxiliary pile carrier (11) moved in, is lowerable synchronously by means of the level switch (7).
  3. Sheet delivery according to Claim 2, characterised in that the lifting frame (12) is constructed as a closed rectangular frame, the clear width of which corresponds at least to the maximum format length and which extends laterally at least by the moving in depth of the auxiliary pile carrier (11) over the maximum format width.
  4. Sheet delivery according to one of the preceding Claims 2 or 3, characterized in that the lifting frame (12) is provided with longitudinal guides (17) for carriages (18) taking up in each case an auxiliary pile carrier (11).
  5. Sheet delivery according to one of the preceding Claims, characterized in that the oppositely running movable auxiliary pile carriers (11) or the carriages (18) receiving these are synchronised by means of a synchronisation unit (19) preferably constructed as a tension cable.
  6. Sheet delivery according to one of the preceding Claims, characterised in that the auxiliary pile carrier (11) is constructed as a plate shaped sword.
  7. Sheet delivery according to one of the preceding Claims, characterised in that the edges of the auxiliary pile carriers (11) turned towards one another are contoured arcuately.
  8. Sheet delivery according to one of the preceding Claims, characterised in that the edges of the auxiliary pile carriers (11) turned towards one another are tapered in wedge fashion.
  9. Sheet delivery according to one of the preceding Claims 7 or 8, characterised in that the auxiliary pile carriers (11) are provided with fixed on shaped pieces (34) having arcuate contouring and/or wedgelike tapering.
  10. Sheet delivery according to one of the preceding Claims, characterised in that the auxiliary pile carrier (11) have blowing nozzles (39) which can be subjected to air, preferably constructed as ball valves.
  11. Sheet delivery according to Claim 10, characterised in that the auxiliary pile carrier (11) is constructed as a sandwich plate with cover sheets (40, 41) connected with one another by bars (42), which bound an interior space (43) consisting of chambers communicating one with another, which can be connected to a source of compressed air.
  12. Sheet delivery according to one of the preceding Claims 10 or 11, characterised in that the subjection to air of the auxiliary pile carrier (11) can be activated at the beginning of its inward or outward movement and can be stopped on ending of its inward or outward movement.
  13. Sheet delivery according to one of the preceding Claims, characterised in that the separating elements (23) are taken up in each case on each side on a carriage (27) adjustably taken up on a horizontal guide (28) arranged fixed to the frame.
  14. Sheet delivery according to one of the preceding Claims, characterised in that the separating elements (23) are constructed as posts actuatable by means of a displacement device constructed preferably as a piston cylinder assembly (26).
  15. Sheet delivery according to Claim 14, characterised in that the posts forming the separating elements (23) are constructed as prolonged piston rods of the respectively arranged piston cylinder assemblies (26).
  16. Sheet delivery according to one of the preceding Claims, characterised in that the posts forming the separating elements (23) are thickened in drop shaped form at their front end.
  17. Sheet delivery according to one of the preceding Claims, characterised in that the separating elements (23) are arranged swivellably and can be lowered by means of the respective swivel device (30) from a horizontal shooting in direction with their front ends.
  18. Sheet delivery according to one of the preceding Claims, characterised in that on each side in each case at least two V-shaped separating elements (23) adjusted relative one to another are provided.
  19. Sheet delivery according to one of the preceding Claims, characterised in that the displacement assembly in each case arranged with respect to the separating elements (23) can be actuatable by means of a sensor (33) sensing directly or indirectly the respectively arriving sheet, preferably cooperating with a sheet transport device (2, 3).
  20. Sheet delivery according to one of the preceding Claims, characterised in that with the actuation of the displacement device respectively arranged for the separating elements (23), the main pile receiving unit can be lowered with rapid movement until below the height level of the auxiliary pile carrier (11).
  21. Sheet delivery according to one of the preceding Claims, characterised in that in the region of the separating elements (23), there are provided preferably vibratingly driveable side pushers (35).
  22. Sheet delivery according to Claim 21, characterised in that the side pushers (35) are taken up on the carriages (27) arranged on the separating elements (23) and the separating elements (23) have respective access apertures (36).
  23. Sheet delivery according to one of the preceding Claims, characterized in that the main pile receiving unit (4) is provided with a section (8a) of a roller track (8) to which sections are arranged in front of and after it on the floor.
EP92114354A 1991-09-18 1992-08-22 Sheet delivery Expired - Lifetime EP0535360B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4131015 1991-09-18
DE4131015A DE4131015C2 (en) 1991-09-18 1991-09-18 Sheet boom

Publications (3)

Publication Number Publication Date
EP0535360A2 EP0535360A2 (en) 1993-04-07
EP0535360A3 EP0535360A3 (en) 1993-05-19
EP0535360B1 true EP0535360B1 (en) 1995-06-21

Family

ID=6440872

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92114354A Expired - Lifetime EP0535360B1 (en) 1991-09-18 1992-08-22 Sheet delivery

Country Status (5)

Country Link
US (1) US5322272A (en)
EP (1) EP0535360B1 (en)
JP (1) JPH0818743B2 (en)
AT (1) ATE124011T1 (en)
DE (2) DE4131015C2 (en)

Families Citing this family (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4317357C1 (en) * 1993-05-25 1994-11-24 Roland Man Druckmasch Method and device for the exact separation of an auxiliary stack from a main stack in non-stop arms of sheet-processing printing machines
JPH0781824A (en) * 1993-09-20 1995-03-28 Kawasaki Steel Corp Method and device for receiving sheet in equipment provided in delivery side of belt-like material shearing line
DE4407584C2 (en) * 1994-03-08 2002-09-26 Jagenberg Querschneider Gmbh Device for stacking sheets
US5494400A (en) * 1994-10-25 1996-02-27 Wirtz Manufacturing Co., Inc. Battery plate stacker
DE19504179A1 (en) * 1995-02-09 1996-01-25 Roland Man Druckmasch Method of changing sheet stack on print machine
DE19507370C2 (en) * 1995-03-03 2003-01-09 Heidelberger Druckmasch Ag Sheet delivery for a printing machine
ATE200770T1 (en) * 1996-02-14 2001-05-15 Roland Man Druckmasch METHOD AND DEVICE FOR AUTOMATIC STACK CHANGE
DE19612294C2 (en) * 1996-03-28 1998-01-29 Heidelberger Druckmasch Ag Delivery system for flat products
US5788459A (en) * 1996-07-15 1998-08-04 Butler Smc Support shelf for vertical stacking system
JP3333813B2 (en) 1996-11-20 2002-10-15 トヨタ自動車株式会社 Startup control device for occupant protection device
DE19708125A1 (en) * 1997-02-28 1998-09-03 Bielomatik Leuze & Co Forklift
WO1999010264A1 (en) * 1997-08-29 1999-03-04 Roskam Mervin W Compensating stacking machine and method of using same
EP0974543B1 (en) * 1998-07-21 2003-12-10 Gerhard Kurt Device for forming stacks of sheets
JP4189065B2 (en) * 1998-09-14 2008-12-03 株式会社小森コーポレーション Sheet receiving device in sheet-fed rotary printing press
DE19911524C2 (en) * 1999-03-16 2002-02-14 Roland Man Druckmasch Device for changing sheet stacks in a delivery of a sheet printing machine
DE10045883A1 (en) * 2000-09-14 2002-03-28 Heidelberger Druckmasch Ag Boom for a machine that processes braided substrates
AT410538B (en) * 2001-05-15 2003-05-26 Schelling Anlagenbau Gmbh DEVICE FOR TRAINING ALIGNED PACKAGES OF UNLEAMED PANELS
EP1262435A1 (en) * 2001-06-02 2002-12-04 BIELOMATIK LEUZE GmbH + Co. Process and apparatus for piling of raw material, especially for signatures or stacks of signatures
DE10244697A1 (en) * 2002-09-24 2004-04-01 Man Roland Druckmaschinen Ag Sheet delivery device for a sheet-processing machine has auxiliary stack supports held by both sides of the main stack each having an upper side fixed opposite the lower auxiliary stack to be formed on the stack supports
DE10244698B4 (en) * 2002-09-24 2011-02-03 Manroland Ag Non-stop facility for a sheet delivery
DE10307785A1 (en) * 2003-02-14 2004-08-26 E.C.H. Will Gmbh Device for stacking an incoming stream of sheets
DE102005058197A1 (en) * 2005-12-06 2007-06-21 Man Roland Druckmaschinen Ag arch support
EP2361865B1 (en) * 2010-02-19 2015-09-16 Müller Martini Holding AG Device and method for producing stacks from a flow of shingled printed products
DE102012021268B4 (en) 2011-11-25 2023-10-05 Heidelberger Druckmaschinen Ag Method and device for forming an auxiliary stack
FR2990195B1 (en) * 2012-05-03 2014-06-06 Holweg Sas METHOD AND MACHINE FOR FORMING BAG PACKS
SE544090C2 (en) * 2018-04-22 2021-12-21 Zenrobotics Oy Waste Sorting Gantry Robot
DE102019127347B3 (en) * 2019-10-10 2020-12-03 Koenig & Bauer Ag Delivery and method for depositing sheets in a delivery of a sheet processing machine
DE102019127356B4 (en) * 2019-10-10 2023-08-03 Koenig & Bauer Ag Method for depositing sheets in a delivery of a sheet processing machine
DE102019127353B3 (en) * 2019-10-10 2020-12-03 Koenig & Bauer Ag Delivery and method for depositing sheets in a delivery of a sheet processing machine
DE102019127344A1 (en) * 2019-10-10 2021-04-15 Koenig & Bauer Ag Delivery and method for depositing sheets in a delivery of a sheet processing machine
DE102021005218A1 (en) * 2021-10-19 2023-04-20 Giesecke+Devrient Currency Technology Gmbh Sheet material holder for holding sheet material

Family Cites Families (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE921154C (en) * 1953-05-23 1954-12-09 Roland Offsetmaschf Sheet delivery for printing machines
US2958431A (en) * 1956-03-15 1960-11-01 Rice Barton Corp Paper trimming and piling apparatus
DE1110659B (en) * 1960-04-04 1961-07-13 Harris Intertype Corp Device for placing a stack of sheets or sheets on a wing
DE1228629B (en) * 1964-01-10 1966-11-17 Unilever Nv Device for loosening up a stack of sheet-shaped work items
DE1231721B (en) * 1966-04-30 1967-01-05 Maschf Augsburg Nuernberg Ag Intermediate stacking device on a sheet processing machine
US3497209A (en) * 1968-03-21 1970-02-24 Nash Co L W Continuous stacking apparatus for light gauge sheets
US3759402A (en) * 1972-04-10 1973-09-18 Harris Intertype Corp Counter ejector
JPS551351B2 (en) * 1974-03-07 1980-01-12
NL7509635A (en) * 1975-05-07 1976-11-09 Heidelberger Druckmasch Ag SHEET OUTLET FOR A PRINTING MACHINE.
US4162649A (en) * 1977-05-18 1979-07-31 Wiggins Teape Limited Sheet stack divider
DE2736832A1 (en) * 1977-08-16 1979-03-15 Mohn Gmbh Reinhard Paper sheet stacking system - uses intermediate pallet to forming auxiliary stack during changeover after which stack is raised for intermediate pallet removal
DE2751489C2 (en) * 1977-11-18 1979-10-31 Vits-Maschinenbau Gmbh, 4018 Langenfeld Device for changing a stack of sheets
DE2935710C2 (en) * 1978-09-09 1981-12-03 Dai Nippon Insatsu K.K., Tokyo Device for depositing sheets in a stack
JPS6118261U (en) * 1984-07-09 1986-02-01 三菱重工業株式会社 piling equipment
DE3535113A1 (en) * 1985-10-02 1987-04-23 Jagenberg Ag BOW DEPOSIT
DE3616470A1 (en) * 1985-12-17 1987-06-25 Jagenberg Ag METHOD AND DEVICE FOR DEPOSITING CONTINUOUSLY GRADED SHEETS TO A STACKING POINT
JPH0792561B2 (en) * 1986-07-08 1995-10-09 株式会社精工舎 Projection liquid crystal display
DE3642259A1 (en) * 1986-12-11 1988-06-23 Will E C H Gmbh & Co METHOD AND ARRANGEMENT FOR FORMING STACKS OF LEAF-SHAPED MATERIAL (LEAVES)
DE3723113A1 (en) * 1987-07-13 1989-01-26 Heinz Dipl Ing Hohenschutz Devices for a loss-free stack exchange, in particular on transverse cutters in the paper and cardboard industry
US4913833A (en) * 1988-06-09 1990-04-03 Basf Corporation Sterically hindered polyether polyols as chlorine bleach stable surfactants
DE58902405D1 (en) * 1988-06-27 1992-11-12 Ferag Ag METHOD AND DEVICE FOR FORMING STACKS FROM FOLDED PRINTING PRODUCTS.
DE3923475A1 (en) * 1989-07-15 1991-01-24 Koenig & Bauer Ag BOW BOOM FOR PRINTING MACHINES
DE3937944C1 (en) * 1989-11-15 1991-04-18 Heidelberger Druckmaschinen Ag, 6900 Heidelberg, De
DE4001565A1 (en) * 1990-01-20 1991-07-25 Heidelberger Druckmasch Ag Paper sheet feed for printing machine - avoids damaging paper edges by using computer to control movable paper stop and movable paper trap
DE4011286A1 (en) * 1990-04-06 1991-10-17 Heidelberger Druckmasch Ag BOW BOOM FOR PRINTING MACHINES OR THE LIKE

Also Published As

Publication number Publication date
US5322272A (en) 1994-06-21
DE59202607D1 (en) 1995-07-27
DE4131015A1 (en) 1993-04-01
JPH05213513A (en) 1993-08-24
EP0535360A3 (en) 1993-05-19
JPH0818743B2 (en) 1996-02-28
DE4131015C2 (en) 1995-10-05
ATE124011T1 (en) 1995-07-15
EP0535360A2 (en) 1993-04-07

Similar Documents

Publication Publication Date Title
EP0535360B1 (en) Sheet delivery
EP1870361B1 (en) Method and device for creating piles of flat parts
EP1348651B1 (en) Conveying device and method for transferring stacks of paper or the like onto a removing conveyor
DE3153613C2 (en)
DE102005014296A1 (en) Device for support of trailing edge of sheet in sheet deliverer of press has one separating element installed to pivot in sheet feed direction from position parallel to trailing edge of sheet pile into piling area of sheet deliverer
EP1795475A2 (en) Sheet supports
DE4217816C2 (en) Device for the continuous delivery of flat printed products
EP0535361B1 (en) Sheet feeder
EP0773179B1 (en) Device for making auxiliary stacks during continuous pile exchange in a piler of a printing machine
DE102010053587A1 (en) Apparatus for supporting auxiliary sheet pile during supply of main sheet pile in printing machine, has rake rod that includes upper band which faces auxiliary sheet pile and lower band which faces main sheet pile
EP0958219B1 (en) Stack changing device
AT501791A2 (en) ARCH BACK EDGE SUPPORT
DE19817064A1 (en) Sheet-feeder and automatic stacker with height adjustable delivery table
EP0798253A1 (en) Delivery system for flat products
DE19911524C2 (en) Device for changing sheet stacks in a delivery of a sheet printing machine
DE10151917A1 (en) Automatic sheet feeder device for supply of sheets to a sheet processing device, e.g. a printer, has a pallet arrangement for automatic discontinuous delivery of sheet stacks, such that sheets can be constantly withdrawn
DE102019127360A1 (en) Delivery and method for depositing sheets in the delivery of a sheet processing machine
EP4355674A1 (en) Stack insertion means having support rollers and a tip, delivery means, sheet-processing machine and method for changing stacks
DE102022118979A1 (en) Delivery and method for operating a delivery with a stack carrier that can be moved vertically by a stack lifting drive
DE102022118980A1 (en) Delivery and method for operating a delivery with a stack carrier that can be moved vertically by a stack lifting drive
DE102018210657A1 (en) Delivery for a sheet-processing machine and method for operating a delivery
DE102019130362A1 (en) Feeder and method of operating a feeder of a tabular substrate processing machine
DE102022118978A1 (en) Delivery and method for operating a delivery with a stack carrier that can be moved vertically by a stack lifting drive
DE102019127344A1 (en) Delivery and method for depositing sheets in a delivery of a sheet processing machine
DE1810954A1 (en) Machine for stacking ceramic plates, especially wall and floor tiles

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

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

17P Request for examination filed

Effective date: 19920916

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH DE DK ES FR GB GR IT LI LU NL PT SE

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH DE DK ES FR GB GR IT LI LU NL PT SE

17Q First examination report despatched

Effective date: 19940608

ITF It: translation for a ep patent filed

Owner name: DE DOMINICIS & MAYER S.R.L.

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE DK ES FR GB GR IT LI LU NL PT SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 19950621

Ref country code: BE

Effective date: 19950621

Ref country code: DK

Effective date: 19950621

Ref country code: ES

Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY

Effective date: 19950621

REF Corresponds to:

Ref document number: 124011

Country of ref document: AT

Date of ref document: 19950715

Kind code of ref document: T

ET Fr: translation filed
REF Corresponds to:

Ref document number: 59202607

Country of ref document: DE

Date of ref document: 19950727

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19950712

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Effective date: 19950822

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19950831

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19950921

Ref country code: PT

Effective date: 19950921

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

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

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20010713

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20010724

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20010731

Year of fee payment: 10

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20020812

Year of fee payment: 11

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020822

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020831

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020831

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030301

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20020822

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 20030301

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20040430

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20050812

Year of fee payment: 14

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050822

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20070301