EP0450333B1 - Sheet delivery apparatus for printing machines or the like - Google Patents

Sheet delivery apparatus for printing machines or the like Download PDF

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Publication number
EP0450333B1
EP0450333B1 EP91103465A EP91103465A EP0450333B1 EP 0450333 B1 EP0450333 B1 EP 0450333B1 EP 91103465 A EP91103465 A EP 91103465A EP 91103465 A EP91103465 A EP 91103465A EP 0450333 B1 EP0450333 B1 EP 0450333B1
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EP
European Patent Office
Prior art keywords
sheet
suction
pile
grippers
leading edge
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
EP91103465A
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German (de)
French (fr)
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EP0450333A1 (en
Inventor
Udo Ganter
Manfred Henn
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Heidelberger Druckmaschinen AG
Original Assignee
Heidelberger Druckmaschinen AG
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Publication date
Application filed by Heidelberger Druckmaschinen AG filed Critical Heidelberger Druckmaschinen AG
Priority to AT91103465T priority Critical patent/ATE97884T1/en
Publication of EP0450333A1 publication Critical patent/EP0450333A1/en
Application granted granted Critical
Publication of EP0450333B1 publication Critical patent/EP0450333B1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • 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
    • 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 for printing machines with a device for changing the sheet stack during machine operation.
  • a rake On a rake, an auxiliary stacking table or the like, which is inserted into the gap between the sheet stack then lowered somewhat and the sheet lifted off with its front area, the incoming sheets are now collected in an auxiliary stack, so that the main stack can be changed while the printing press is running.
  • the suction grippers are intended to prevent the lower sheet from slipping off the catch device for the leading edge of the sheet when the gap is formed and in particular when the rake or the like is inserted for the auxiliary stack.
  • a sheet delivery is known in which not only catch fingers for the sheet leading edge of one of the sheets conveyed against collapsible stack stops when forming auxiliary stacks for changing the stack in non-stop operation, but also in the opposite direction to the catch fingers for the sheet leading edge hold-up for the trailing edge of the sheet can be inserted briefly over the sheet stack, which, in cooperation with the catch fingers for the leading edge of the sheet, hold up the next incoming sheet with a loose edition, in order to be able to insert the rake or the like for the auxiliary stack.
  • the invention has for its object to securely hold the sheet briefly held by catch fingers on the catch fingers for the auxiliary stack formation and to tighten it after inserting an auxiliary stacking device, for example a rake, and above all to hit the stack stops with its front sheet edge in order to hit it ensure accurate alignment in the sheet stack.
  • an auxiliary stacking device for example a rake
  • the invention solves this problem in that a sheet boom with the generic features of claim 1 is formed with the features according to the characterizing part of this claim.
  • the sheet is shortened due to its sag by a difference and thereby recedes from the stacking stops for the leading edge of the sheet around this difference and tightened at the same time, so that it is precisely aligned again in the sheet stack.
  • a further perfection of the desired goal can be achieved with a sheet delivery with generic features according to claim 2, if such a sheet delivery with features according to this claim 2 is formed.
  • the sheet just arriving during the formation of an auxiliary stack deposits not only on its leading edge, but also on the trailing edge on catch fingers which are connected to the suction air of the machine's suction air system in the inserted end position and hold the leading edge and trailing edge of the sheet , whereupon means for arch tightening are effective both on the leading edge of the sheet and on the trailing edge of the sheet.
  • This increases the accuracy of aligning the lower sheet in the auxiliary stack with the stacking stops for the leading and trailing edge of the sheet.
  • the lower sheet of the auxiliary stack is held more securely when inserting the rake or the like for auxiliary stack formation, so that above all the processing of lighter types of paper can be improved and can be carried out with greater accuracy.
  • An embodiment is preferred in which the catching fingers for the leading edge of the sheet or catching fingers for both the leading edge of the sheet and catching fingers for the trailing edge of the sheet are movably arranged on guides parallel to the top of the sheet stack and a differential drive for the sheet tensioning which is independent of the drive of the insertion movement exhibit.
  • the drive for the insertion movement and return movement of the catch fingers can remain unchanged, so that only a small pneumatic cylinder has to be installed as an additional differential drive for the arch tightening between drive members, which is the motor drive for the insertion and return movement of larger pneumatic cylinders on the catch fingers transfer.
  • the lifting movement of the pneumatic cylinders for the differential drive can advantageously be adjusted both the catching finger for the leading edge of the sheet and the catching finger for the trailing edge of the sheet.
  • the incoming sheets 3 are transported up to a sheet stack 3a and against stacking stops 4 for the sheet leading edge.
  • the stacking stops 4 are fastened to a swivel shaft 5 arranged transversely, so that they can be swung away and swung back in again by a rotary movement of this swivel shaft 5.
  • the pivot shaft 5 is guided on the one side of the machine through the side wall 2 to the outside and connected by transmission members 6 to a drive shaft 7, the motor drive of which consists of a pneumatic cylinder 8, which enables the stacking stops 4 to be folded away and folded back.
  • suction pads 10 in the form of tubular catch fingers are fastened to a support tube 11 which extends over the stack width and is guided so that it can move back and forth on guides 12 aligned parallel to the sheet plane in the sheet stack 3a the suction pads 10 perform a precisely defined linear movement during their movement.
  • the tubular catching fingers of the suction grippers 10 have suction nozzles 13 at their free ends which can be pushed in via the stack on their upper side which forms the support for a sheet 3, and which extend over the interior of the tubular catching fingers and the carrier tube and correspondingly designed control devices, for example with the aid of pneumatically or valves controlled electrically via microprocessors to which the machine's suction air system is connected.
  • the suction grippers 10 are also driven via a drive shaft 14 which is articulated to the support tube 11 and coaxial to the drive shaft 7 for the Stack stops 4 is stored.
  • One end of the drive shaft 14 is rotatably mounted adjacent to the one side wall in a bearing 15 formed on the drive shaft 7.
  • the other end of the drive shaft 14 has a bearing 16 in the side wall 1 and is connected to the piston rod of a pneumatic cylinder 18 in an articulated manner outside this side wall by the one arm of a lever 17 fastened on the drive shaft 14.
  • a lever 17a is fastened to the shaft 14 on each side of the machine, and this is articulated to a relatively small pneumatic cylinder 19, the piston rod of which is articulated to the support tube 11 or to a carriage 20 supporting it on the guide 12.
  • the pneumatic cylinder 18 enables the suction grippers 10 to be inserted and withdrawn, while the two pneumatic cylinders 19 enable a sheet tightening by limited retraction of the suction grippers 10 in the direction against the stacking stops 4.
  • This limited movement can be adjusted by an adjusting screw 21 which can be rotated on the piston rod of the pneumatic cylinder 19 and by means of which the maximum piston stroke of the pneumatic cylinder 19 can be regulated.
  • suction pads 22 are arranged movably on guides 23 linearly between suction disks 24 of a suction roller 25, from which stops 26 for the sheet trailing edge extend vertically downward into the area of the sheet stack 3a.
  • the suction grippers 22 are also tubular in the form of catching fingers and have suction nozzles 27 in the area which can be inserted via the sheet stack 3a on the upper side serving for the sheet support, which nozzles via the hollow catching fingers, a common supply line 28 and corresponding ones, for example pneumatically or electrically, for example by means of Microprocessors, controlled control valves on the machine's suction air system are connected.
  • the suction grippers 22 are driven by a pneumatic cylinder 29, the piston movement of which is transmitted to the suction grippers 22 by means of a driving rack 30, between gear wheels 31, 32, 33 and an output rack 34, so that the latter is linear with the suction nozzles 27 over the rear edge of the Sheet stack can be inserted and withdrawn.
  • the piston rod of the pneumatic cylinder 29 is guided so that it can move axially in the body of the toothed rack 30 and is connected to it by a small pneumatic cylinder 35, the housing of which is articulated to the piston rod and the piston rod is articulated to the body of the toothed rack 30 is.
  • Set screws 36 which are rotatably arranged on a thread of the piston rod, serve to adjust the stroke movement of this small pneumatic cylinder 35.
  • the pneumatic cylinders 18 and 29 for driving the suction grippers 10 for the leading edge of the sheet and the suction grippers 22 for the trailing edge of the sheet can be operated independently or in mutual dependence via a switch.
  • the arrangement of a control is advantageous, which causes the suction grippers 10 and 22 to be inserted first over the sheet stack 3a, in order to then use a rake 37 or, after the stacking stops 4 have been folded away, another auxiliary stacking device, such as e.g. a board to be inserted into the gap between the uppermost sheet on the sheet stack 3a and the sheet held by the suction pads 10 and 22.
  • the stacking stops 4 are only folded back again before the auxiliary stack is released and the suction pads 10 and 22 are withdrawn.
  • the device described is effective as follows.
  • the pneumatic cylinders 8, 18 and 29 for driving the stacking stops 4 for Front edge of the sheet retracted for the suction pads on the front edge of the sheet and for suction pads on the rear edge of the sheet.
  • the suction pads are thus retracted behind the stacking stops 4 on the front edge and 26 on the rear edge.
  • the small pneumatic cylinders 19 and 35 are extended.
  • the pneumatic cylinder 18 first executes and pushes the suction pads 10 with the suction nozzles 13 over the sheet stack at the leading edge of the sheet.
  • the pneumatic cylinder 29 executes and pushes the suction grippers 22 from the trailing edge of the sheet with the suction nozzles 27 to the stack of sheets, so that the next incoming sheet 3 lies with the leading edge on the suction grippers 10 and with the trailing edge on the suction grippers 22, so that it sags in the middle area and is supported on the sheet stack.
  • the arc is shortened by the dimension a shown in FIG. 5 on the trailing edge of the arc.
  • the small pneumatic cylinders 19 and 35 are now acted on so that they retract by the dimension a of the sheet shortening and tighten the sheet again against the stacking stops 4 and 26.
  • the extent of this tightening movement is adjustable by means of the adjusting screws 21 and 36 on the piston rods of the pneumatic cylinders 19 and 29.
  • the pneumatic cylinders 8, 18 and 29 drive the stacking stops 4 and the suction pads 10 and 22 again, so that the stacking stops 4 are folded up and the suction pads 10 and 22 are withdrawn from the area of the sheet stack, so that the auxiliary stack falls on a new pallet or the like.
  • the small pneumatic cylinders 19 and 35 extend to restore the starting position.
  • the stack stops 4 are also folded back after the suction pads 10 and 22 have been retracted in order to remove test sheets for assessment.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pile Receivers (AREA)
  • Discharge By Other Means (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)

Abstract

A sheet delivery for a printing machine or the like with a device for changing a sheet pile while the machine is in operation, includes suction-type grippers insertable into a sheet feeder, opposite to a conveying direction of the sheets and between pile stops for a leading edge of the sheets, the suction-type grippers having a device for gripping by suction, in an inserted end position of the grippers, the leading edge of a sheet deposited onto the suction-type grippers and for holding the sheet at a distance above the sheet pile in an auxiliary-pile position, so as to permit the insertion of an auxiliary-pile device beneath the sheet, and a device for stretching the sheet after the leading edge of the sheet has been gripped by the inserted suction-type grippers, the sheet-stretching device being effective for withdrawing the suction-type grippers a predetermined distance towards the pile stops for the leading edge of the sheet.

Description

Die Erfindung bezieht sich auf einen Bogenausleger für Druckmaschinen mit einer Einrichtung zum Wechseln des Bogenstapels während des Maschinenlaufs.The invention relates to a sheet delivery for printing machines with a device for changing the sheet stack during machine operation.

Aus der DE-PS 921 154 ist bekannt, daß zwischen Stapelanschlägen für die Bogenvorderkante Sauggreifer entgegen der Förderrichtung der Bogen in den Anleger einschiebbar sind, die in der eingeschobenen Endlage die Vorderkante eines sich auf die Sauggreifer ablegenden Bogens ansaugen und diesen Bogen mit einem Abstand über dem Bogenstapel in einer Hilfsstapelposition halten, die das Einschieben eines Rechens, Hilfsstapeltisches oder dergleichen ermöglicht. Im sogenannten Non-Stop-Betrieb werden diese Sauggreifer beim Stapelwechsel zur Bildung eines Hilfsstapels oberhalb des Bogenstapels eingeschoben, so daß der nächste ankommende Bogen sich mit seiner Vorderkante auf die Sauggreifer legt, durch diese festgehalten wird und alle folgenden Bogen sich darauf ablegen. Auf einem in die Lücke zwischen dem dann etwas abgesenkten Bogenstapel und dem davon mit seinem vorderen Bereich abgehobenen Bogen eingeschobenen Rechen, einem Hilfsstapeltisch oder dergleichen sammeln sich nun die ankommenden Bogen in einem Hilfsstapel, so daß der Hauptstapel bei laufender Druckmaschine gewechselt werden kann. Die Sauggreifer sollen dabei vermeiden, daß der untere Bogen bei der Lückenbildung und insbesondere beim Einschub des Rechens oder dergleichen für den Hilfsstapel von der Fangvorrichtung für die Bogenvorderkante abrutscht.From DE-PS 921 154 it is known that between stack stops for the leading edge of the suction pad against the conveying direction of the sheet can be inserted into the feeder, which in the inserted end position suck the leading edge of a sheet resting on the suction pad and this sheet with a distance above hold the sheet stack in an auxiliary stacking position that enables the insertion of a rake, auxiliary stacking table or the like. In the so-called non-stop operation, these suction pads are inserted when the stack is changed to form an auxiliary stack above the sheet stack, so that the next incoming sheet lies with its leading edge on the suction pads, is held by them and all subsequent sheets are placed thereon. On a rake, an auxiliary stacking table or the like, which is inserted into the gap between the sheet stack then lowered somewhat and the sheet lifted off with its front area, the incoming sheets are now collected in an auxiliary stack, so that the main stack can be changed while the printing press is running. The suction grippers are intended to prevent the lower sheet from slipping off the catch device for the leading edge of the sheet when the gap is formed and in particular when the rake or the like is inserted for the auxiliary stack.

Es ist eine weitere Erscheinung, daß der nur an der Vorderkante hochgehaltene Bogen bei abgesenktem Bogenstapel durchhängt und sich im übrigen auf dem tieferliegenden Bogenstapel abstützt. Dadurch verkürzt sich der Bogen und liegt nicht mehr an den Stapelanschlägen an. Außerdem kommt es bei bestimmten, vor allem bei leichten Papiersorten vor, daß der untere in die Lücke durchhängende Bogen des Hilfsstapels von dem Rechen beim Einschieben ein wenig mitgenommen wird und dadurch teilweise von der Fangvorrichtung für die Vorderkante abrutscht, so daß er die Stapelanschläge nicht mehr berührt. Dies ist für die Genauigkeit bei der Weiterverarbeitung der Bogen unerwünscht.It is a further phenomenon that the sheet, which is only held up at the leading edge, sags when the sheet stack is lowered and is otherwise on the lower one Supports sheet stack. This shortens the sheet and is no longer on the stack stops. In addition, it happens with certain, especially with light types of paper, that the lower arch of the auxiliary stack sagging in the gap is taken a little by the rake when inserted and thereby partially slips off the safety catch for the leading edge, so that it no longer stops the stack touched. This is undesirable for the accuracy in finishing the sheets.

Aus der DE-OS 23 01 840 ist ein Bogenausleger bekannt, bei dem nicht nur Fangfinger für die Bogenvorderkante eines der gegen wegklappbare Stapelanschläge geförderten Bogen bei der Hilfsstapelbildung zum Stapelwechsel im Non-Stop-Betrieb, sondern auch gegensinnig zu den Fangfingern für die Bogenvorderkante Hochhalter für die Bogenhinterkante kurzzeitig über den Bogenstapel einschiebbar sind, die im Zusammenwirken mit den Fangfingern für die Bogenvorderkante den nächsten ankommenden Bogen bei loser Auflage hochhalten, um den Rechen oder dergleichen für den Hilfsstapel einschieben zu können.From DE-OS 23 01 840 a sheet delivery is known in which not only catch fingers for the sheet leading edge of one of the sheets conveyed against collapsible stack stops when forming auxiliary stacks for changing the stack in non-stop operation, but also in the opposite direction to the catch fingers for the sheet leading edge hold-up for the trailing edge of the sheet can be inserted briefly over the sheet stack, which, in cooperation with the catch fingers for the leading edge of the sheet, hold up the next incoming sheet with a loose edition, in order to be able to insert the rake or the like for the auxiliary stack.

Der Erfindung liegt die Aufgabe zugrunde, den für die Hilfsstapelbildung kurzzeitig durch Fangfinger gehaltenen Bogen auf den Fangfingern sicher festzuhalten und nach dem Einschieben einer Hilfsstapelvorrichtung, zum Beispiel eines Rechens, zu straffen und dabei vor allem mit seiner Bogenvorderkante gegen die Stapelanschläge zu stoßen, um seine genaue Ausrichtung im Bogenstapel sicherzustellen.The invention has for its object to securely hold the sheet briefly held by catch fingers on the catch fingers for the auxiliary stack formation and to tighten it after inserting an auxiliary stacking device, for example a rake, and above all to hit the stack stops with its front sheet edge in order to hit it ensure accurate alignment in the sheet stack.

Die Erfindung löst diese Aufgabe dadurch, daß ein Bogenausleger mit den Gattungsmerkmalen des Patentanspruches 1 mit den Merkmalen nach dem Kennzeichen dieses Anspruches ausgebildet wird.The invention solves this problem in that a sheet boom with the generic features of claim 1 is formed with the features according to the characterizing part of this claim.

Durch diese Ausbildung wird der sich infolge seines Durchhanges um eine Differenzstrecke verkürzende und dabei von den Stapelanschlägen für die Bogenvorderkante zurückweichende Bogen um diese Differenzstrecke nachgeführt und gleichzeitig gestrafft, so daß er im Bogenstapel wieder genau ausgerichtet liegt.With this design, the sheet is shortened due to its sag by a difference and thereby recedes from the stacking stops for the leading edge of the sheet around this difference and tightened at the same time, so that it is precisely aligned again in the sheet stack.

Eine weitere Vervollkommnung des angestrebten Zieles kann bei einem Bogenausleger mit Gattungsmerkmalen nach dem Patentanspruch 2 erreicht werden, wenn ein solcher Bogenausleger mit Merkmalen nach diesem Patentanspruch 2 ausgebildet wird.A further perfection of the desired goal can be achieved with a sheet delivery with generic features according to claim 2, if such a sheet delivery with features according to this claim 2 is formed.

In diesem Falle wird erreicht, daß der bei einer Hilfsstapelbildung gerade ankommende Bogen nicht nur an seiner Bogenvorderkante, sondern auch an der Bogenhinterkante auf Fangfingern ablegt, die in der eingeschobenen Endlage an die Saugluft des Saugluftsystems der Maschine angeschlossen sind und die Bogenvorderkante sowie die Bogenhinterkante festhalten, worauf Mittel zur Bogenstraffung sowohl an der Bogenvorderkante als auch an der Bogenhinterkante wirksam sind. Dies erhöht die Genauigkeit beim Ausrichten des unteren Bogens im Hilfsstapel an den Stapelanschlägen für die Bogenvorderkante und für die Bogenhinterkante. Außerdem wird der untere Bogen des Hilfsstapels beim Einschieben des Rechens oder dergleichen für die Hilfsstapelbildung sicherer gehalten, so daß vor allem die Verarbeitung leichterer Papiersorten verbessert und mit größerer Genauigkeit durchgeführt werden kann.In this case, it is achieved that the sheet just arriving during the formation of an auxiliary stack deposits not only on its leading edge, but also on the trailing edge on catch fingers which are connected to the suction air of the machine's suction air system in the inserted end position and hold the leading edge and trailing edge of the sheet , whereupon means for arch tightening are effective both on the leading edge of the sheet and on the trailing edge of the sheet. This increases the accuracy of aligning the lower sheet in the auxiliary stack with the stacking stops for the leading and trailing edge of the sheet. In addition, the lower sheet of the auxiliary stack is held more securely when inserting the rake or the like for auxiliary stack formation, so that above all the processing of lighter types of paper can be improved and can be carried out with greater accuracy.

Bevorzugt wird eine Ausbildung, bei der die Fangfinger für die Bogenvorderkante oder Fangfinger sowohl für die Bogenvorderkante als auch Fangfinger für die Bogenhinterkante auf Führungen parallel zur Bogenstapeloberseite beweglich angeordnet sind und einen vom Antrieb der Einschubbewegung unabhängigen Differenzialantrieb für die Bogenstraffung aufweisen. Bei einer solchen Anordnung kann der Antrieb für die Einschubbewegung und Rückfuhrbewegung der Fangfinger unverändert bleiben, so daß lediglich ein kleiner Pneumatikzylinder als zusätzlicher Differenzialantrieb für die Bogenstraffung zwischen Antriebsgliedern einzubauen ist, die den motorischen Antrieb für die Einschub- und Rückführbewegung von größeren Pneumatikzylindern auf die Fangfinger übertragen.An embodiment is preferred in which the catching fingers for the leading edge of the sheet or catching fingers for both the leading edge of the sheet and catching fingers for the trailing edge of the sheet are movably arranged on guides parallel to the top of the sheet stack and a differential drive for the sheet tensioning which is independent of the drive of the insertion movement exhibit. With such an arrangement, the drive for the insertion movement and return movement of the catch fingers can remain unchanged, so that only a small pneumatic cylinder has to be installed as an additional differential drive for the arch tightening between drive members, which is the motor drive for the insertion and return movement of larger pneumatic cylinders on the catch fingers transfer.

Zur Anpassung an die bei unterschiedlichen Papiersorten und Maschinenlaufgeschwindigkeiten gegebenenfalls unterschiedliche Bogenverkürzung ist die Hubbewegung der Pneumatikzylinder für den Differenzialantrieb sowohl der Fangfinger für die Bogenvorderkante als auch der Fangfinger für die Bogenhinterkante vorteilhaft einstellbar.In order to adapt to the sheet shortening, which may differ with different paper types and machine running speeds, the lifting movement of the pneumatic cylinders for the differential drive can advantageously be adjusted both the catching finger for the leading edge of the sheet and the catching finger for the trailing edge of the sheet.

Wesentliche Merkmale von Weiterbildungen des Erfindungsgedankens sind in den Ansprüchen 5 bis 8 enthalten.Essential features of further developments of the inventive concept are contained in claims 5 to 8.

Auf der Zeichnung ist ein Ausführungsbeispiel eines Bogenauslegers mit den Erfindungsmerkmalen schematisch dargestellt. Es zeigen:

Figur 1
eine Draufsicht auf Sauggreifer und Stapelanschläge für die Bogenvorderkante mit ihren Antrieben,
Figur 2
in einem gegenüber Figur 1 vergrößerten Maßstab eine Seitenansicht des Antriebes für die Stapelanschläge,
Figur 3
im Maßstab der Figur 2 eine Seitenansicht des Antriebes für die Sauggreifer,
Figur 4
in einem von Figur 1 abweichenden Maßstab eine Draufsicht auf Sauggreifer für die Bogenhinterkante und
Figur 5
einen im Maßstab gegenüber Figur 4 vergrößerten Schnitt nach der Linie V - V der Figur 4.
In the drawing, an embodiment of a sheet boom with the features of the invention is shown schematically. Show it:
Figure 1
a top view of suction pads and stacking stops for the sheet leading edge with their drives,
Figure 2
in a scale enlarged compared to FIG. 1, a side view of the drive for the stacking stops,
Figure 3
in the scale of Figure 2 is a side view of the drive for the suction pads,
Figure 4
in a scale different from Figure 1, a plan view of suction pads for the trailing edge and
Figure 5
4 shows a section along the line V-V of FIG. 4, enlarged on a scale compared to FIG. 4.

In dem durch die beiden Seitenwände 1 und 2 gebildeten Gestell des Bogenauslegers einer Druckmaschine werden die ankommenden Bogen 3 bis über einen Bogenstapel 3a und gegen Stapelanschläge 4 für die Bogenvorderkante transportiert. Die Stapelanschläge 4 sind an einer querverlaufend angeordneten Schwenkwelle 5 befestigt, so daß sie durch eine Drehbewegung dieser Schwenkwelle 5 weggeklappt und wieder angeklappt werden können. Die Schwenkwelle 5 ist auf der einen Maschinenseite durch die Seitenwand 2 hindurch nach außen geführt und durch übertragungsglieder 6 mit einer Antriebswelle 7 verbunden, deren motorischer Antrieb aus einem Pneumatikzylinder 8 besteht, der das Wegklappen und das Wiederanklappen der Stapelanschläge 4 ermöglicht.In the frame of the sheet delivery of a printing machine formed by the two side walls 1 and 2, the incoming sheets 3 are transported up to a sheet stack 3a and against stacking stops 4 for the sheet leading edge. The stacking stops 4 are fastened to a swivel shaft 5 arranged transversely, so that they can be swung away and swung back in again by a rotary movement of this swivel shaft 5. The pivot shaft 5 is guided on the one side of the machine through the side wall 2 to the outside and connected by transmission members 6 to a drive shaft 7, the motor drive of which consists of a pneumatic cylinder 8, which enables the stacking stops 4 to be folded away and folded back.

Im Bereich der Vorderkante der Bogen 3 im Bogenstapel 3a sind Sauggreifer 10 in der Ausbildung als rohrförmige Fangfinger an einem sich über die Stapelbreite erstreckenden Trägerrohr 11 befestigt, der auf parallel zur Bogenebene im Bogenstapel 3a ausgerichteten Führungen 12 vor- und zurückbeweglich geführt ist, so daß die Sauggreifer 10 bei ihrer Bewegung eine exakt definierte Linearbewegung ausführen. Die rohrförmigen Fangfinger der Sauggreifer 10 weisen an ihrem freien, über den Stapel einschiebbaren Enden an ihrer das Auflager für einen Bogen 3 bildenden Oberseite Saugdüsen 13 auf, die über den Innenraum der rohrförmigen Fangfinger und des Trägerrohres und entsprechend gestaltete Steuereinrichtungen, z.B. unter Zuhilfenahme von pneumatisch oder elektrisch über Mikroprozessoren gesteuerten Ventilen, an das Saugluftsystem der Maschine angeschlossen sind. Der Antrieb für die Sauggreifer 10 erfolgt ebenfalls über eine Antriebswelle 14, die gelenkig mit dem Trägerrohr 11 gekoppelt und koaxial zu der Antriebswelle 7 für die Stapelanschläge 4 gelagert ist. Das eine Ende der Antriebswelle 14 ist angrenzend an die eine Seitenwand in einem an der Antriebswelle 7 ausgebildeten Lager 15 drehbar gelagert. Das andere Ende der Antriebswelle 14 weist ein Lager 16 in der Seitenwand 1 auf und ist außerhalb dieser Seitenwand durch den einen Arm eines auf der Antriebswelle 14 befestigten Hebels 17 mit der Kolbenstange eines Pneumatikzylinders 18 gelenkig verbunden. Innerhalb des Gestells der Maschine ist auf der Welle 14 auf jeder Seite der Maschine ein Hebel 17a befestigt, und dieser ist mit einem relativ kleinen Pneumatikzylinders 19 gelenkig verbunden, dessen Kolbenstange an das Trägerrohr 11 oder einen dieses auf der Führung 12 abstützenden Schlitten 20 angelenkt. Der Pneumatikzylinder 18 ermöglicht das Einschieben und Zurückziehen der Sauggreifer 10, während die beiden Pneumatikzylinder 19 eine Bogenstraffung durch begrenztes Zurückziehen der Sauggreifer 10 in Richtung gegen die Stapelanschläge 4 ermöglichen. Diese begrenzte Bewegung ist durch eine auf der Kolbenstange der Pneumatikzylinder 19 verdrehbare Stellschraube 21 einstellbar, durch die der maximale Kolbenhub der Pneumatikzylinder 19 regelbar ist.In the area of the leading edge of the sheets 3 in the sheet stack 3a, suction pads 10 in the form of tubular catch fingers are fastened to a support tube 11 which extends over the stack width and is guided so that it can move back and forth on guides 12 aligned parallel to the sheet plane in the sheet stack 3a the suction pads 10 perform a precisely defined linear movement during their movement. The tubular catching fingers of the suction grippers 10 have suction nozzles 13 at their free ends which can be pushed in via the stack on their upper side which forms the support for a sheet 3, and which extend over the interior of the tubular catching fingers and the carrier tube and correspondingly designed control devices, for example with the aid of pneumatically or valves controlled electrically via microprocessors to which the machine's suction air system is connected. The suction grippers 10 are also driven via a drive shaft 14 which is articulated to the support tube 11 and coaxial to the drive shaft 7 for the Stack stops 4 is stored. One end of the drive shaft 14 is rotatably mounted adjacent to the one side wall in a bearing 15 formed on the drive shaft 7. The other end of the drive shaft 14 has a bearing 16 in the side wall 1 and is connected to the piston rod of a pneumatic cylinder 18 in an articulated manner outside this side wall by the one arm of a lever 17 fastened on the drive shaft 14. Within the frame of the machine, a lever 17a is fastened to the shaft 14 on each side of the machine, and this is articulated to a relatively small pneumatic cylinder 19, the piston rod of which is articulated to the support tube 11 or to a carriage 20 supporting it on the guide 12. The pneumatic cylinder 18 enables the suction grippers 10 to be inserted and withdrawn, while the two pneumatic cylinders 19 enable a sheet tightening by limited retraction of the suction grippers 10 in the direction against the stacking stops 4. This limited movement can be adjusted by an adjusting screw 21 which can be rotated on the piston rod of the pneumatic cylinder 19 and by means of which the maximum piston stroke of the pneumatic cylinder 19 can be regulated.

Im Bereich der Hinterkante der Bogen 3 im Bogenstapel 3a sind Sauggreifer 22 auf Führungen 23 linear zwischen Saugscheiben 24 einer Saugwalze 25 beweglich angeordnet, von der aus sich Anschläge 26 für die Bogenhinterkante vertikal nach unten bis in den Bereich des Bogenstapels 3a erstrecken.In the area of the rear edge of the sheets 3 in the sheet stack 3a, suction pads 22 are arranged movably on guides 23 linearly between suction disks 24 of a suction roller 25, from which stops 26 for the sheet trailing edge extend vertically downward into the area of the sheet stack 3a.

Die Sauggreifer 22 sind ebenfalls rohrförmig als Fangfinger ausgebildet und weisen in dem über den Bogenstapel 3a einschiebbaren Bereich an der für die Bogenauflage dienenden Oberseite Saugdüsen 27 auf, die über die hohlen Fangfinger, eine gemeinsame Zuleitung 28 und entsprechende bspw. pneumatisch oder elektrisch, z.B. mittels Mikroprozessoren, gesteuerte Steuerventile an das Saugluftsystem der Maschine angeschlossen sind. Der Antrieb der Sauggreifer 22 erfolgt durch einen Pneumatikzylinder 29, dessen Kolbenbewegung durch eine antreibende Zahnstange 30, zwischen Zahnräder 31, 32, 33 und eine abtreibende Zahnstange 34 auf die Sauggreifer 22 übertragen wird, so daß letztere linear mit den Saugdüsen 27 über die Hinterkante des Bogenstapels eingeschoben und zurückgezogen werden können. Zur Bogenstraffung durch auf die Bogenhinterkante wirksame Kräfte ist die Kolbenstange des Pneumatikzylinders 29 axial beweglich in dem Körper der Zahnstange 30 geführt und mit diesem durch einen kleinen Pneumatikzylinder 35 verbunden, dessen Gehäuse gelenkig mit der Kolbenstange und dessen Kolbenstange gelenkig mit dem Körper der Zahnstange 30 verbunden ist. Zur Einstellung der Hubbewegung dieses kleinen Pneumatikzylinders 35 dienen Stellschrauben 36, die auf einem Gewinde der Kolbenstange verdrehbar angeordnet sind.The suction grippers 22 are also tubular in the form of catching fingers and have suction nozzles 27 in the area which can be inserted via the sheet stack 3a on the upper side serving for the sheet support, which nozzles via the hollow catching fingers, a common supply line 28 and corresponding ones, for example pneumatically or electrically, for example by means of Microprocessors, controlled control valves on the machine's suction air system are connected. The suction grippers 22 are driven by a pneumatic cylinder 29, the piston movement of which is transmitted to the suction grippers 22 by means of a driving rack 30, between gear wheels 31, 32, 33 and an output rack 34, so that the latter is linear with the suction nozzles 27 over the rear edge of the Sheet stack can be inserted and withdrawn. For tightening the bow by forces acting on the trailing edge of the bow, the piston rod of the pneumatic cylinder 29 is guided so that it can move axially in the body of the toothed rack 30 and is connected to it by a small pneumatic cylinder 35, the housing of which is articulated to the piston rod and the piston rod is articulated to the body of the toothed rack 30 is. Set screws 36, which are rotatably arranged on a thread of the piston rod, serve to adjust the stroke movement of this small pneumatic cylinder 35.

Die Pneumatikzylinder 18 und 29 für den Antrieb der Sauggreifer 10 für die Bogenvorderkante und der Sauggreifer 22 für die Bogenhinterkante können unabhängig oder aber in gegenseitiger Abhängigkeit über einen Schalter betätigt werden. Vorteilhaft ist die Anordnung einer Steuerung, die bewirkt, daß die Sauggreifer 10 und 22 erst über den Bogenstapel 3a eingeschoben werden, um sodann einen Rechen 37 oder nach Wegklappen der Stapelanschläge 4 eine andere Hilfsstapeleinrichtung, wie z.B. ein Brett, in die Lücke zwischen dem obersten Bogen auf dem Bogenstapel 3a und den durch die Sauggreifer 10 und 22 festgehaltenen Bogen einzuschieben. Umgekehrt werden die Stapelanschläge 4 in letzterem Falle erst wieder zurückgeklappt, bevor der Hilfsstapel aufgelöst und die Sauggreifer 10 und 22 zurückgezogen werden.The pneumatic cylinders 18 and 29 for driving the suction grippers 10 for the leading edge of the sheet and the suction grippers 22 for the trailing edge of the sheet can be operated independently or in mutual dependence via a switch. The arrangement of a control is advantageous, which causes the suction grippers 10 and 22 to be inserted first over the sheet stack 3a, in order to then use a rake 37 or, after the stacking stops 4 have been folded away, another auxiliary stacking device, such as e.g. a board to be inserted into the gap between the uppermost sheet on the sheet stack 3a and the sheet held by the suction pads 10 and 22. Conversely, in the latter case, the stacking stops 4 are only folded back again before the auxiliary stack is released and the suction pads 10 and 22 are withdrawn.

Zur Bogenstraffung ist die beschriebene Vorrichtung wie folgt wirksam. In der Ruhestellung sind die Pneumatikzylinder 8, 18 und 29 für den Antrieb der Stapelanschläge 4 für die Bogenvorderkante, für die Sauggreifer an der Bogenvorderkante und für die Sauggreifer an der Bogenhinterkante eingefahren. Die Sauggreifer sind somit bis hinter die Stapelanschläge 4 an der Vorderkante und 26 an der Hinterkante zurückgezogen. Die kleinen Pneumatikzylinder 19 und 35 sind ausgefahren. Zum Stapelwechsel im Non-Stop-Betrieb führt zunächst der Pneumatikzylinder 18 aus und schiebt die Sauggreifer 10 mit den Saugdüsen 13 an der Bogenvorderkante über den Bogenstapel ein. Gleichzeitig führt der Pneumatikzylinder 29 aus und schiebt die Sauggreifer 22 von der Bogenhinterkante her mit den Saugdüsen 27 bis über den Bogenstapel ein, so daß der nächste ankommende Bogen 3 sich mit der Vorderkante auf die Sauggreifer 10 und mit der Hinterkante auf die Sauggreifer 22 ablegt, so daß er im mittleren Bereich durchhängt und sich auf dem Bogenstapel abstützt. Dabei verkürzt sich der Bogen um das in Figur 5 an der Bogenhinterkante beispielsweise dargestellte Maß a. Zur Bogenstraffung werden nunmehr die kleinen Pneumatikzylinder 19 und 35 beaufschlagt, so daß diese um das Maß a der Bogenverkürzung einfahren und den Bogen wieder bis gegen die Stapelanschläge 4 und 26 straffen. Das Ausmaß dieser Straffbewegung ist durch die Stellschrauben 21 bzw. 36 auf den Kolbenstangen der Pneumatikzylinder 19 und 29 einstellbar.For tightening the bow, the device described is effective as follows. In the rest position, the pneumatic cylinders 8, 18 and 29 for driving the stacking stops 4 for Front edge of the sheet retracted for the suction pads on the front edge of the sheet and for suction pads on the rear edge of the sheet. The suction pads are thus retracted behind the stacking stops 4 on the front edge and 26 on the rear edge. The small pneumatic cylinders 19 and 35 are extended. To change the stack in non-stop operation, the pneumatic cylinder 18 first executes and pushes the suction pads 10 with the suction nozzles 13 over the sheet stack at the leading edge of the sheet. At the same time, the pneumatic cylinder 29 executes and pushes the suction grippers 22 from the trailing edge of the sheet with the suction nozzles 27 to the stack of sheets, so that the next incoming sheet 3 lies with the leading edge on the suction grippers 10 and with the trailing edge on the suction grippers 22, so that it sags in the middle area and is supported on the sheet stack. The arc is shortened by the dimension a shown in FIG. 5 on the trailing edge of the arc. To tighten the sheet, the small pneumatic cylinders 19 and 35 are now acted on so that they retract by the dimension a of the sheet shortening and tighten the sheet again against the stacking stops 4 and 26. The extent of this tightening movement is adjustable by means of the adjusting screws 21 and 36 on the piston rods of the pneumatic cylinders 19 and 29.

Im Anschluß an den Stapelwechsel fahren die Pneumatikzylinder 8, 18 und 29 für den Antrieb der Stapelanschläge 4 und der Sauggreifer 10 bzw. 22 wieder ein, so daß die Stapelanschläge 4 angeklappt und die Sauggreifer 10 und 22 aus dem Bereich des Bogenstapels zurückgezogen werden, so daß der Hilfsstapel auf eine neue Palette oder dergleichen fällt. Gleichzeitig fahren die kleinen Pneumatikzylinder 19 und 35 aus, um die Ausgangsposition wieder herzustellen.Following the stack change, the pneumatic cylinders 8, 18 and 29 drive the stacking stops 4 and the suction pads 10 and 22 again, so that the stacking stops 4 are folded up and the suction pads 10 and 22 are withdrawn from the area of the sheet stack, so that the auxiliary stack falls on a new pallet or the like. At the same time, the small pneumatic cylinders 19 and 35 extend to restore the starting position.

In gleicher Weise wie beim Stapelwechsel werden zur Entnahme von Probebogen zur Begutachtung die Stapelanschläge 4 ebenfalls nach Einfahren der Sauggreifer 10 und 22 zurückgeklappt.In the same way as when changing the stack, the stack stops 4 are also folded back after the suction pads 10 and 22 have been retracted in order to remove test sheets for assessment.

Claims (8)

  1. Sheet deliverer for a printing machine or the like, having a device for changing the sheet pile during the machine run, in which device forwarding sucker grippers can be inserted into the deliverer counter to the conveying direction of the sheets between pile stops for the leading edge of the sheets, which forwarding sucker grippers in the inserted end position apply suction to the leading edge of a sheet being placed on the forwarding sucking grippers and hold this sheet with spacing above the sheet pile in an auxiliary stacking position which allows an auxiliary stacking device to be inserted, characterised in that the inserted forwarding sucker grippers (10) are arranged such that they can be retracted by a predetermined distance (a) in the direction towards the pile stops (4) for the leading edge of the sheets in order to draw the sheet tight after suction has been applied to the leading edge of the sheet (3).
  2. Sheet deliverer for a printing machine or the like, having a device for changing the sheet pile during the machine run, in which device forwarding sucker grippers (10), constructed as catch fingers, for the leading edge of the sheets can be inserted between pile stops (4) of the sheet and forwarding sucker grippers (22), constructed as catch fingers, for the trailing edge of the sheet can be inserted above the sheet pile (3a) parallel to the conveying direction of the sheet and hold a sheet (3), placed on said sheet pile with the leading edge and the trailing edge, in the inserted end position to form an auxiliary pile above the sheet pile (3a), characterised in that the forwarding sucker grippers (10) for the leading edge of the sheet and the forwarding sucker grippers (22) for the trailing edge of the sheet have suction nozzles (13, 27) on the top side, on which the sheet edge is placed, and are arranged, in order to draw the sheet tight after suction has been applied to the sheet (3) in the inserted end position, such that they can be retracted from said end position by a pre-determined distance (a) in the opposite direction to the insertion movement.
  3. Sheet deliverer according to Claim 1 or 2, characterised in that the forwarding sucker grippers (10, 22) are arranged movably parallel to the top side of the sheet pile and have a differential drive (19, 29), which is independent of the drive (18, 29) of the insertion movement, for drawing the sheet tight.
  4. Sheet deliverer according to Claim 3, characterised in that the differential drives (19, 35) consist of pneumatic cylinders which are adjustable in the lifting movement and connect two components of the drives (18, 29) to each other for the insertion movement.
  5. Sheet deliverer according to Claim 4, characterised in that the forwarding sucker grippers (10, 22) are of tubular construction, have suction nozzles (13, 27) at the free end and are attached to a support pipe (11) of a pipeline (28), which pipe and pipeline are connected via control valves to the suction air system of the machine.
  6. Sheet deliverer according to Claim 1, characterised in that forwarding sucker grippers (10), which are arranged movably on guides (12) parallel to the top side of the sheet and are composed of catch fingers with suction nozzles (27) arranged at the free ends in the region of the sheet support, have separate motor drives (8, 18), composed of pneumatic cylinders and (sic) stops (4) which can be swivelled away about a transverse axis, which drives are effective in mutual dependence, and in that a transmission member between the forwarding sucker grippers (10) and the pneumatic cylinders (18), driving the latter, on each of the two machine sides consists of a further pneumatic cylinder (19) with its own control.
  7. Sheet deliverer according to Claims 1 to 6, characterised in that a transmission, composed of a driving rack (30), an output rack (34) and intermediate gears (31, 32, 33), is provided between a motor drive, composed of a pneumatic cylinder (29) and the forwarding sucker grippers (22) for the trailing edge of the sheet, a further pneumatic cylinder (35) which is effective as a differential drive being installed in a region of parts moving in linear fashion.
  8. Sheet deliverer according to Claim 7, characterised in that the pneumatic cylinder (35), which is effective as a differential drive, connects the piston rod of the pneumatic cylinder (29), driving the forwarding sucker grippers (22) for the trailing edge of the sheet, with power transmission in the axial direction to the driving rack (30) of the transmission.
EP91103465A 1990-04-06 1991-03-07 Sheet delivery apparatus for printing machines or the like Expired - Lifetime EP0450333B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT91103465T ATE97884T1 (en) 1990-04-06 1991-03-07 SHEET DELIVERY FOR PRINTING PRESSES OR SIMILAR.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4011286A DE4011286A1 (en) 1990-04-06 1990-04-06 BOW BOOM FOR PRINTING MACHINES OR THE LIKE
DE4011286 1990-04-06

Publications (2)

Publication Number Publication Date
EP0450333A1 EP0450333A1 (en) 1991-10-09
EP0450333B1 true EP0450333B1 (en) 1993-12-01

Family

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EP91103465A Expired - Lifetime EP0450333B1 (en) 1990-04-06 1991-03-07 Sheet delivery apparatus for printing machines or the like

Country Status (6)

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US (1) US5131647A (en)
EP (1) EP0450333B1 (en)
JP (1) JPH0755759B2 (en)
AT (1) ATE97884T1 (en)
CA (1) CA2035937C (en)
DE (2) DE4011286A1 (en)

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DE4131015C2 (en) * 1991-09-18 1995-10-05 Roland Man Druckmasch Sheet boom
DE4221928B4 (en) * 1992-07-03 2004-06-24 Heidelberger Druckmaschinen Ag Device for non-stop stack change in the delivery of a printing press
DE4405586C1 (en) * 1993-05-25 1995-06-08 Roland Man Druckmasch Separating device for stack sheets for non-stop delivery in printing machines
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
DE59500316D1 (en) * 1994-02-22 1997-07-24 Roland Man Druckmasch Device for the exact separation of the main and auxiliary stacks on the trailing edge of the sheet for non-stop feeders
DE4431669B4 (en) * 1994-09-06 2006-01-12 Heidelberger Druckmaschinen Ag Device for depositing different products produced by a printing press in continuous operation
DE19507370C2 (en) * 1995-03-03 2003-01-09 Heidelberger Druckmasch Ag Sheet delivery for a printing machine
EP0737640B1 (en) * 1995-04-15 2001-07-04 Heidelberger Druckmaschinen Aktiengesellschaft Method of and device for introducing an auxiliary pile receiver
DE19516071C2 (en) * 1995-05-04 1997-12-04 Heidelberger Druckmasch Ag Method and device for changing a main stack on sheet-fed printing machines with continuous sheet feeding
DE19541792B4 (en) * 1995-11-09 2004-09-30 Heidelberger Druckmaschinen Ag Device for auxiliary stack formation when changing non-stop stacks in the delivery of a printing press
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
DE10056728A1 (en) 1999-12-08 2001-06-13 Heidelberger Druckmasch Ag Device to hold up sheets of paper has movable, vertically adjustable sheet catchers in forward stack forming area and with immersion depth so small that sheet catchers do not touch printed area of sheet
DE10061005B4 (en) 1999-12-22 2009-11-12 Heidelberger Druckmaschinen Ag Separation aid when changing piles on a printing machine
TWI278481B (en) 2002-04-16 2007-04-11 Hitachi Chemical Co Ltd Thermosetting resin composition, prepreg and laminate using the same
JP4040394B2 (en) * 2002-08-27 2008-01-30 株式会社リコー Sheet conveying apparatus and image reading apparatus
DE10322546A1 (en) * 2003-05-20 2004-12-09 Koenig & Bauer Ag Auxiliary pile unit in sheet deliverer of paper processing machine has separating bars horizontally pivotable between parked position outside pile area and working position in which they protrude into pile area
DE102005014296A1 (en) * 2005-03-24 2006-09-28 Man Roland Druckmaschinen Ag 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
US7717419B2 (en) * 2007-03-28 2010-05-18 A. G. Stacker Inc. Accumulator having rotary drive
DE102009046590A1 (en) 2009-11-10 2011-05-12 Windmöller & Hölscher Kg Apparatus and method for forming stacks of bags
JP5439611B1 (en) * 2013-01-24 2014-03-12 トタニ技研工業株式会社 Sheet product conveyor
DE102015217170B4 (en) * 2014-09-17 2023-10-05 Heidelberger Druckmaschinen Ag Device for combining an auxiliary stack with a main stack

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DE2218535B1 (en) * 1972-04-17 1973-03-15 Heidelberger Druckmaschinen Ag, 6900 Heidelberg Sheet support device on sheet arms of sheet processing machines for carrying out the stack change while the machine is running
DE2301840C3 (en) * 1973-01-15 1981-03-26 MAN Roland Druckmaschinen AG, 63075 Offenbach Sheet delivery device of a sheet-fed printing machine
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DE3609549A1 (en) * 1986-03-21 1987-10-01 Mabeg Maschinenbau Gmbh Nachf Separating device

Also Published As

Publication number Publication date
EP0450333A1 (en) 1991-10-09
DE4011286C2 (en) 1992-04-16
JPH0692532A (en) 1994-04-05
DE4011286A1 (en) 1991-10-17
JPH0755759B2 (en) 1995-06-14
ATE97884T1 (en) 1993-12-15
DE59100644D1 (en) 1994-01-13
CA2035937C (en) 1994-10-11
US5131647A (en) 1992-07-21
CA2035937A1 (en) 1991-10-07

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