EP0640547B1 - Rotatable pile table in a cross-layer for printing products - Google Patents

Rotatable pile table in a cross-layer for printing products Download PDF

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Publication number
EP0640547B1
EP0640547B1 EP94113231A EP94113231A EP0640547B1 EP 0640547 B1 EP0640547 B1 EP 0640547B1 EP 94113231 A EP94113231 A EP 94113231A EP 94113231 A EP94113231 A EP 94113231A EP 0640547 B1 EP0640547 B1 EP 0640547B1
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EP
European Patent Office
Prior art keywords
stacking
wall
compartment according
longitudinal
walls
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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
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EP94113231A
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German (de)
French (fr)
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EP0640547A1 (en
Inventor
Hagen Gämmerler
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Individual
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Individual
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H31/00Pile receivers
    • B65H31/20Pile receivers adjustable for different article sizes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00Handling processes for sheets or webs
    • B65H2301/40Type of handling process
    • B65H2301/42Piling, depiling, handling piles
    • B65H2301/421Forming a pile
    • B65H2301/4211Forming a pile of articles alternatively overturned, or swivelled from a certain angle
    • B65H2301/42112Forming a pile of articles alternatively overturned, or swivelled from a certain angle swivelled from 180°
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00Handling processes for sheets or webs
    • B65H2301/40Type of handling process
    • B65H2301/42Piling, depiling, handling piles
    • B65H2301/422Handling piles, sets or stacks of articles
    • B65H2301/4223Pressing piles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2402/00Constructional details of the handling apparatus
    • B65H2402/30Supports; Subassemblies; Mountings thereof
    • B65H2402/35Supports; Subassemblies; Mountings thereof rotating around an axis
    • B65H2402/351Turntables
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00Handled material; Storage means
    • B65H2701/10Handled articles or webs
    • B65H2701/19Specific article or web
    • B65H2701/1932Signatures, folded printed matter, newspapers or parts thereof and books
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S414/00Material or article handling
    • Y10S414/10Associated with forming or dispersing groups of intersupporting articles, e.g. stacking patterns
    • Y10S414/12Associated with forming or dispersing groups of intersupporting articles, e.g. stacking patterns including means pressing against top or end of group

Definitions

  • the invention relates to a rotatable stacking chamber in a stacker for printed products with a lifting and rotating stacking table, the chamber walls each being formed by two opposing longitudinal or transverse walls and at least one of the two opposing walls for the purpose of adjustment to the Size of the printed products is displaceable with respect to the opposite wall and at least one of the walls can be removed for the purpose of transporting away printed products stacked in the chamber.
  • Such rotatable stacking chambers are connected in a conveyor chain for printed products in order to stack a certain number of these products in each case. Since the printed products are often folded on one side, there are different heights between the leading edge and the trailing edge. In order to compensate for this, the stack is rotated by 180 ° after half of the desired stack height, so that the following half of the printed products come to lie on their side with their folded edge, with the leading edge on the bottom half of the stack.
  • a rotatable stacking chamber according to the preamble of claim 1 is known from EP-A-0 153 983.
  • This document discloses keeping the side walls of stacking chambers slidable on guides, the readjustments of the stacking chamber size being carried out in millimeters using a manually operated locking device and a ruler. This work is very tedious because it is accomplished by bumping or tapping lightly with a hammer on the corresponding walls. Although the chamber becomes smaller for a small print format, the ruler protrudes from the chamber wall because it remains stationary. The locking of the side walls must also be very firm so that it does not come loose during operation, but on the other hand it should be so easy to release that an additional tool for releasing the fastening is not required. For this reason, the locking devices are usually provided with a hand lever, which in turn may not be so large that it interferes with the narrow structure of the stacking device.
  • the invention is therefore based on the object of specifying a rotatable stacking chamber of the type mentioned which, with a simple and inexpensive construction, permits adaptation and fine adjustment to the printed products during operation.
  • This measure allows the stacking chamber to be adjusted during the production run without the flow of the printed products having to be interrupted.
  • the actuator is designed with an actuator that has at least one spindle for movement via a pinion applied to the transverse wall, it is possible to carry out very precise position shifts.
  • the pinion for each transverse wall may have a worm gear toothing, the driven worm gear being provided with an internal thread which interacts with the spindle, which can be rotated on the associated transverse wall or the corresponding part of the transverse wall is held.
  • a worm gear toothing in which a spindle runs in an internal thread of an output worm gear, offers the advantage that high self-locking occurs, whereby self-adjustment of the transverse wall or the assigned part of the transverse wall is prevented.
  • transverse wall or in each case part of the transverse wall is held on guide rods which slide in bearings provided on the respective longitudinal wall.
  • transverse walls has two lateral pivoting doors which can be pivoted outwards and can be actuated by power.
  • both transverse walls are designed in this two-part manner, so that the ejection of a finished stack can be carried out independently of the rotational position, since the transverse wall facing the removal station is swiveled out the swing doors enable the finished stack to be removed by means of an ejector.
  • the press device has a press bar attached to a swivel arm, that the swivel arm is essentially C-shaped and overlaps the arrangement of the actuator from the outside.
  • a swivel arm can therefore easily be swiveled over the product stack without coming into conflict with other components.
  • An essential feature of the invention is that both longitudinal walls are slidably held on the turntable. It is advantageous that the actuator for at least one displaceable longitudinal wall is arranged in or under the table top of the stacking table. It is particularly advantageous if the two opposing longitudinal walls can be displaced via a common actuator. It is favorable that the actuator has a servomotor that drives a drive shaft for the two longitudinal walls. A toothed pulley for a longitudinal wall is expediently fixed on the drive shaft, which drives an adjusting spindle via a toothed belt, which moves a link nut fixedly connected to the longitudinal wall. In this embodiment, it is favorable that the side wall is guided in a linear guide.
  • the linear guide advantageously has two guide elements arranged in parallel, between which the adjusting spindle is arranged.
  • the actuator for the longitudinal walls has a pneumatic or hydraulic cylinder-piston arrangement and, if necessary, a gear.
  • the actuator can be arranged on the side wall and drive it via a rack which is fixedly arranged with the stacking table, with the interposition of a pinion.
  • a schematically reproduced stacking chamber 1 of a stacker is shown in perspective view.
  • the stacking chamber has a rotatable stacking table 2 as well as longitudinal walls 3 and transverse walls 4.
  • the transverse walls 4 each consist of two pivoting doors 7, which leave a space between them through which an ejection device, not shown, can eject a stack of printed products when the opposite transverse wall is open. (For the sake of clarity, an incomplete stack of printed products 38 is shown in FIG. 1).
  • the pivoting doors are opened on the removal side by means of a device, in the exemplary embodiment shown a pneumatic piston-cylinder unit 39.
  • the stack chamber may be pivoted several times, but at least once, by 180 ° in order to fill the stack.
  • This pivoting movement is that the transverse wall, which had been pivoted out during a previous removal process, alternately in the subsequent stacking takes the position of the rear transverse wall, so that both transverse walls are each formed with swing doors.
  • the reference numeral 5 denotes an actuator shown schematically here, which can vary the spacing of the transverse walls from one another.
  • FIG. 2 shows a side view of a longitudinal wall 3 of the stacking chamber 1 with part of the stacking table 2.
  • the longitudinal wall 3 carries on its outside the actuator 5, which comprises a pinion 8 and, when the pinion acts, two spindles 10.
  • a servomotor 6 is provided which drives two output worm wheels 12 via a worm gear toothing (see FIG. 2a), both of which are each arranged on a worm shaft 11 'which is connected to the motor shaft of the servomotor 6 in a rotationally fixed manner.
  • the output worm wheels 12 are provided with an internal thread 13 which interacts with the respectively assigned spindles 10.
  • One spindle is connected to a part of a front and the other to a part of a rear transverse wall.
  • the respective ends of the spindle 10, which face away from the output worm wheel 12 are rotatably held on the respective part of the transverse wall, so that rotation of the spindles 10 causes movement of the part of the transverse wall.
  • the parts of the transverse wall 4 are each guided by means of guide rods 14.
  • These guide rods 14 are on the one hand on the respective parts of the transverse walls 4 in bearings 15, whereas they are displaceable in bearings 15 'on the longitudinal wall.
  • the longitudinal wall is equipped with a pressing device 22 for compressing the stacked printed products.
  • a pressure bar 23 is provided on the upper edge of the side wall 3.
  • the pressure bar 23 is fastened to a swivel arm 24 which is essentially c-shaped and engages over the arrangement of the actuator 5 from the outside.
  • both longitudinal walls 3 are held on the rotatable stacking table 2 so as to be displaceable in the embodiment shown.
  • FIG. 3 shows a top view of a schematic illustration of the actuator 5 'for the longitudinal walls 3 with regions of the stacking table 2 which have partly broken away.
  • the actuator 5 'for the displaceability of the two longitudinal walls provided in the illustrated embodiment is arranged in or under the table top 9 of the stacking table 2. In the embodiment shown in FIGS. 3 and 4, both opposing longitudinal walls 3 are displaceable via a common actuator 5 '.
  • the actuator 5 ' has an actuator 6 which drives a drive shaft 18 for both longitudinal walls 3.
  • the drive shaft 18, which extends essentially perpendicular to the longitudinal wall 3, has a length that extends beyond the axis of symmetry between the two longitudinal walls.
  • two toothed disks 19 are fixed for one longitudinal wall 3 each.
  • the toothed disks 19 in the illustrated embodiment are each at a symmetrical distance to both sides of the line of symmetry on the drive shaft 18, each drive an adjusting spindle 21 via a toothed belt 20, each of which moves a link nut 31 which is fixedly connected to a longitudinal wall 3.
  • the adjusting spindles have opposite slopes, so that a symmetrical adjustment of the longitudinal walls is possible.
  • a linear guide 25 is assigned to the respective longitudinal walls, which can consist of a guide rail.
  • Such linear guides are known.
  • the respective adjusting spindles 29 are supported at their ends in bearing blocks 34 by means of ball bearings 35.
  • a similar mounting is provided for the drive shaft 18, which is driven by the second servomotor 17.
  • the drive motor is arranged in the lower region of the longitudinal wall 3 and drives the longitudinal wall via a toothed transmission 30, which cooperates with a toothed rack 29 arranged fixedly in the turntable.
  • the rack 29 can be arranged in the stacking table 2 in such a way that the flat end faces of the rack lie in one plane with the surface of the table top 9.
  • undesirable print marks can occur on the lowermost printed product when it is pressed onto the table top 9.
  • a highly flexible masking tape 36 is provided on the longitudinal wall 3 is fastened and is guided over and rotates about the deflection rollers 37 arranged at both ends of the rack 29 fixed in the table.
  • the rack 29 is set down by the amount of the thickness of the cover tape relative to the surface of the table top 9.
  • the actuating drive is provided by two piston-cylinder units 27.
  • the piston-cylinder units are arranged at an angle to the longitudinal walls 3 in order to leave space between them for the lifting cylinder 39 of the stacking table.
  • the free end of the piston rod of the piston-cylinder arrangement 27 is articulated to a downwardly projecting pin of the longitudinal wall.
  • a linear guide in the form of a guide rail can also be used again.
  • double-acting piston-cylinder units can be provided with two diametrically opposed piston rods, each of which engages on a longitudinal wall.
  • two such double-acting cylinder arrangements since in this way possible tilting problems when guiding the longitudinal walls 3 can be avoided.
  • a stacking chamber is created that is simple and can be quickly adjusted during the production run and in which it is possible to always bring transfer devices very close to the stacking chamber even with small print formats.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pile Receivers (AREA)
  • Discharge By Other Means (AREA)

Abstract

A rotatable pile table (1) for a cross-layer for printing products is specified, in which the longitudinal and transverse walls (3, 4) can be adjusted, with respect to the table dimensions, via a respectively associated controllable setting drive (5, 5'). <IMAGE>

Description

Die Erfindung betrifft eine drehbare Stapelkammer in einem Kreuzleger für Druckprodukte mit einem heb- und drehbaren Stapeltisch, wobei die Kammerwände jeweils von zwei sich gegenüberliegenden Längs- bzw. Querwänden gebildet sind und mindestens eine von den jeweils zwei sich gegenüberstehenden Wänden zum Zweck des Einstellens auf die Größe der Druckprodukte bezüglich der gegenüberliegenden Wand verschiebbar ist und zumindest eine der Wände zum Zwecke des Abtransportes von in der Kammer gestapelten Druckprodukten entfernbar ist.The invention relates to a rotatable stacking chamber in a stacker for printed products with a lifting and rotating stacking table, the chamber walls each being formed by two opposing longitudinal or transverse walls and at least one of the two opposing walls for the purpose of adjustment to the Size of the printed products is displaceable with respect to the opposite wall and at least one of the walls can be removed for the purpose of transporting away printed products stacked in the chamber.

Derartige drehbare Stapelkammern sind in eine Förderkette für Druckprodukte eingeschaltet, um jeweils eine bestimmte Anzahl von diesen Produkten zu stapeln. Da die Druckprodukte oftmals an einer Seite gefalzt sind, ergeben sich unterschiedliche Höhen zwischen der Vorderkante und der Hinterkante. Um dies auszugleichen, wird der Stapel nach der Hälfte der gewünschten Stapelhöhe um 180° gedreht, so daß die folgende Hälfte der Druckprodukte mit ihrer Falzkante auf der Seite zu liegen kommt, auf der sich bei der unteren Stapelhälfte die Vorderkante befindet.Such rotatable stacking chambers are connected in a conveyor chain for printed products in order to stack a certain number of these products in each case. Since the printed products are often folded on one side, there are different heights between the leading edge and the trailing edge. In order to compensate for this, the stack is rotated by 180 ° after half of the desired stack height, so that the following half of the printed products come to lie on their side with their folded edge, with the leading edge on the bottom half of the stack.

Um eine exakte Ausrichtung des Stapels zu erhalten, ist es notwendig, die Seitenwände der Stapelkammern nachzujustieren, da sich die erste ursprünglichen Einstellungen, beispielsweise genormter Produktgrößen, möglicherweise als zu klein oder auch als zu groß erweist. Im Falle, daß die Abmessungen zu groß sind, kommt es zu versetzt angeordneten Lagen von Druckprodukten, im Falle zu geringer Abmessungen bleiben die Druckprodukte teilweise schräg in der Stapelkammer und werden abgeknickt.In order to obtain an exact alignment of the stack, it is necessary to readjust the side walls of the stacking chambers, since the first original settings, for example standardized product sizes, may prove to be too small or too large. In the event that the dimensions are too large, layers of printed products are arranged offset, in the case of too small dimensions the printed products sometimes remain obliquely in the stacking chamber and are kinked.

Eine drehbare Stapelkammer gemäß dem Oberbegriff des Anspruchs 1 ist aus EP-A-0 153 983 bekannt. Dieses Dokument offenbart, die Seitenwände von Stapelkammern auf Führungen verschiebbar zu halten, wobei mit einer manuell zu betätigenden Feststelleinrichtung und mittels eines Lineals die Nachjustierungen der Stapelkammergröße millimeterweise durchgeführt werden. Diese Arbeit ist sehr mühsam, da sie durch Stoßen oder leichtes Klopfen mit einem Hammer gegen die entsprechenden Wände bewerkstelligt wird. Zwar wird für ein kleines Druckformat die Kammer kleiner, das Lineal steht aber an der Kammerwand hervor, da es stationär bleibt. Auch muß die Arretierung der Seitenwände sehr fest sein, damit sie sich im Laufe des Betriebs nicht löst, andererseits soll sie jedoch so leicht lösbar sein, daß ein zusätzliches Werkzeug zum Lösen der Befestigung nicht erforderlich ist. Aus diesem Grund werden die Feststelleinrichtungen meist mit einem Handhebel versehen, der wiederum nicht so groß sein darf, daß er im engen Aufbau des Kreuzlegers stört.A rotatable stacking chamber according to the preamble of claim 1 is known from EP-A-0 153 983. This document discloses keeping the side walls of stacking chambers slidable on guides, the readjustments of the stacking chamber size being carried out in millimeters using a manually operated locking device and a ruler. This work is very tedious because it is accomplished by bumping or tapping lightly with a hammer on the corresponding walls. Although the chamber becomes smaller for a small print format, the ruler protrudes from the chamber wall because it remains stationary. The locking of the side walls must also be very firm so that it does not come loose during operation, but on the other hand it should be so easy to release that an additional tool for releasing the fastening is not required. For this reason, the locking devices are usually provided with a hand lever, which in turn may not be so large that it interferes with the narrow structure of the stacking device.

Aus den oben genannten Gründen ist die korrekte Einstellung der Kammermaße oft sehr zeitraubend und kann überdies nur bei angehaltener Produktion erfolgen.For the reasons mentioned above, the correct setting of the chamber dimensions is often very time-consuming and, moreover, can only be carried out when production is stopped.

Der Erfindung liegt daher die Aufgabe zugrunde, eine drehbare Stapelkammer der genannten Gattung anzugeben, die bei einfachem und kostengünstigem Aufbau eine Anpassung und Feinjustierung an die Druckprodukte während des Betriebs gestattet.The invention is therefore based on the object of specifying a rotatable stacking chamber of the type mentioned which, with a simple and inexpensive construction, permits adaptation and fine adjustment to the printed products during operation.

Die Aufgabe wird erfindungsgemäß durch die kennzeichnenden Merkmale des Anspruchs 1 gelöst.The object is achieved by the characterizing features of claim 1.

Durch diese Maßnahme kann während des Produktionslaufs eine Verstellung der Stapelkammer durchgeführt werden, ohne daß der Fluß der Druckprodukte unterbrochen werden müßte.This measure allows the stacking chamber to be adjusted during the production run without the flow of the printed products having to be interrupted.

Bei der Ausbildung des Stelltriebs mit einem Stellmotor, der über einen Zahntrieb mindestens eine Spindel zur Bewegung der Querwand beaufschlagt, ist es möglich, sehr genaue Positionsverschiebungen durchzuführen.When the actuator is designed with an actuator that has at least one spindle for movement via a pinion applied to the transverse wall, it is possible to carry out very precise position shifts.

Um eine solche genaue Verstellmöglichkeit bereitzustellen, kann es vorteilhaft sein, daß der Zahntrieb für jeweils eine Querwand eine Schneckenradverzahnung aufweist, wobei das Abtriebsschneckenrad mit einem Innengewinde versehen ist, welches mit der Spindel zusammenwirkt, die an der zugeordneten Querwand oder dem entsprechenden Teil der Querwand drehbar gehalten ist.In order to provide such a precise adjustment option, it may be advantageous for the pinion for each transverse wall to have a worm gear toothing, the driven worm gear being provided with an internal thread which interacts with the spindle, which can be rotated on the associated transverse wall or the corresponding part of the transverse wall is held.

Eine Schneckenradverzahnung, bei der eine Spindel in einem Innengewinde eines Abtriebsschneckenrads läuft, bietet den Vorteil, daß eine hohe Selbsthemmung auftritt, wodurch eine Eigenverstellung der Querwand oder des zugeordneten Teils der Querwand unterbunden bleibt.A worm gear toothing, in which a spindle runs in an internal thread of an output worm gear, offers the advantage that high self-locking occurs, whereby self-adjustment of the transverse wall or the assigned part of the transverse wall is prevented.

Vorteilhaft kann bei der Ausbildung einer verstellbaren Stapelkammer sein, daß die Querwand bzw. jeweils ein Teil der Querwand an Führungsstangen gehalten ist, die in an der jeweiligen Längswand vorgesehenen Lagern gleiten. Durch diese Merkmale wird ein problemloses Verschieben der Querwand bzw. eines Querwandteils ermöglicht, ohne daß die Gefahr eines Verklemmens auftritt.It can be advantageous in the formation of an adjustable stacking chamber that the transverse wall or in each case part of the transverse wall is held on guide rods which slide in bearings provided on the respective longitudinal wall. These features enable problem-free displacement of the transverse wall or a transverse wall part without the risk of jamming.

Ein weiteres vorteilhaftes Merkmal ist darin zu sehen, daß zumindest eine der Querwände zwei seitliche, nach außen schwenkbare Schwenktüren aufweist, die kraftbetrieben betätigbar sind. Vorteilhafterweise sind beide Querwände in dieser Zweiteiligkeit ausgebildet, so daß das Ausstoßen eines fertigen Stapels unabhängig von der Drehposition durchgeführt werden kann, da jeweils die der Entnahmestation zugewandte Querwand durch Ausschwenken der Schwenktüren den Abtransport des fertigen Stapels mittels eines Ausstoßers freigibt.Another advantageous feature can be seen in the fact that at least one of the transverse walls has two lateral pivoting doors which can be pivoted outwards and can be actuated by power. Advantageously, both transverse walls are designed in this two-part manner, so that the ejection of a finished stack can be carried out independently of the rotational position, since the transverse wall facing the removal station is swiveled out the swing doors enable the finished stack to be removed by means of an ejector.

Besonders vorteilhaft kann bei einer Stapelkammer mit einer Preßvorrichtung zum Verdichten der gestapelten Druckprodukte, bei der die Preßvorrichtung eine an einem Schwenkarm befestigte Preßleiste aufweist, sein, daß der Schwenkarm im wesentlichen C-förmig ausgebildet ist und die Anordnung des Stelltriebs von außen übergreift. Ein solcher Schwenkarm kann daher leicht über den Produktstapel geschwenkt werden, ohne in Konflikt mit anderen Bauteilen zu geraten.It can be particularly advantageous in a stacking chamber with a press device for compressing the stacked printed products, in which the press device has a press bar attached to a swivel arm, that the swivel arm is essentially C-shaped and overlaps the arrangement of the actuator from the outside. Such a swivel arm can therefore easily be swiveled over the product stack without coming into conflict with other components.

Ein wesentliches Merkmal der Erfindung besteht darin, daß beide Längswände auf dem Drehtisch verschiebbar gehalten sind. Hierbei ist es günstig, daß der Stelltrieb für mindestens eine verschiebbare Längswand in bzw. unter der Tischplatte des Stapeltisches angeordnet ist. Besonders vorteilhaft ist es, wenn beide sich gegenüberliegende Längswände über einen gemeinsamen Stelltrieb verschiebbar sind. Dabei ist es günstig, daß der Stelltrieb einen Stellmotor aufweist, der eine Antriebswelle für die beiden Längswände antreibt. Günstigerweise ist auf der Antriebswelle jeweils eine Zahnscheibe für eine Längswand festgelegt, die über einen Zahnriemen eine Stellspindel antreibt, die eine mit der Längswand fest verbundene Kulissenmutter bewegt. Bei dieser Ausführung ist es günstig, daß die Seitenwand in einer Linearführung geführt ist. Die Linearführung weist vorteilhafterweise zwei parallel angeordnete Führungselemente auf, zwischen denen die Stellspindel angeordnet ist.An essential feature of the invention is that both longitudinal walls are slidably held on the turntable. It is advantageous that the actuator for at least one displaceable longitudinal wall is arranged in or under the table top of the stacking table. It is particularly advantageous if the two opposing longitudinal walls can be displaced via a common actuator. It is favorable that the actuator has a servomotor that drives a drive shaft for the two longitudinal walls. A toothed pulley for a longitudinal wall is expediently fixed on the drive shaft, which drives an adjusting spindle via a toothed belt, which moves a link nut fixedly connected to the longitudinal wall. In this embodiment, it is favorable that the side wall is guided in a linear guide. The linear guide advantageously has two guide elements arranged in parallel, between which the adjusting spindle is arranged.

Bei einer anderen Ausführungsform kann es günstig sein, daß der Stelltrieb für die Längswände eine pneumatische oder hydraulische Zylinder-Kolbenanordnung und ggfs. ein Getriebe aufweist.In another embodiment, it may be favorable that the actuator for the longitudinal walls has a pneumatic or hydraulic cylinder-piston arrangement and, if necessary, a gear.

Bei einer Variante zum vorgenannten Stelltrieb kann der Stellmotor an der Seitenwand angeordnet sein und diese über eine fest mit dem Stapeltisch angeordnete Zahnstange unter Zwischenschaltung eines Zahntriebs antreiben.In a variant of the aforementioned actuator, the actuator can be arranged on the side wall and drive it via a rack which is fixedly arranged with the stacking table, with the interposition of a pinion.

Im folgenden wird die Erfindung anhand in der Zeichnung dargestellter Ausführungsbeispiele näher erläutert. Es zeigen:

Fig. 1
eine schematische Darstellung einer erfindungsgemäßen Stapelkammer in perspektivischer Ansicht,
Fig. 2
eine Seitenansicht auf eine Längswand mit Preßvorrichtung und steuerbarem Stelltrieb,
Fig. 2a
eine Darstellung des Details IIa in Fig. 2 der Einheit Stellmotor-Schneckenradverzahnung,
Fig. 3
eine Teilansicht auf die Stapelkammer von oben mit herausgebrochenen Bereichen,
Fig. 4
eine Detailansicht auf einen herausgebrochenen Bereich im Stapeltisch mit Stelltrieb für die Längswände,
Fig. 5
eine Seitenansicht einer schematischen Darstellung eines Stelltriebs mit fest im Stapeltisch angeordneter Zahnstange und Abdeckband,
Fig. 6
eine weitere Ausführungsform des Stelltriebs unter Verwendung von Kolben-Zylindereinheiten für jede Längswand in Seitenansicht,
Fig. 7
eine Darstellung der Ausbildung gem. Fig. 6 von oben.
The invention is explained in more detail below with reference to exemplary embodiments shown in the drawing. Show it:
Fig. 1
1 shows a schematic illustration of a stacking chamber according to the invention in a perspective view,
Fig. 2
a side view of a longitudinal wall with pressing device and controllable actuator,
Fig. 2a
2 shows the servomotor-worm gear toothing unit,
Fig. 3
a partial view of the stacking chamber from above with broken-out areas,
Fig. 4
a detailed view of a broken-out area in the stacking table with actuator for the longitudinal walls,
Fig. 5
2 shows a side view of a schematic illustration of an actuator with a toothed rack and cover band fixedly arranged in the stacking table
Fig. 6
another embodiment of the actuator using piston-cylinder units for each longitudinal wall in side view,
Fig. 7
a representation of the training acc. Fig. 6 from above.

In Fig. 1 ist in perspektivischer Ansicht eine schematisch wiedergebene Stapelkammer 1 eines Kreuzlegers dargestellt. Die Stapelkammer weist einen drehbaren Stapeltisch 2 sowie Längswände 3 und Querwände 4 auf. Die Querwände 4 bestehen in der dargestellten Ausführungsform jeweils aus zwei Schwenktüren 7, die zwischen sich einen Freiraum belassen, durch den eine nicht dargestellte Ausstoßvorrichtung einen Stapel Druckprodukte bei geöffneter gegenüberliegender Querwand ausstoßen kann. (In Fig. 1 ist der Klarheit wegen ein unvollständiger Stapel Druckprodukte 38 dargestellt.) Die Schwenktüren werden bei fertig errichtetem Stapel mittels einer Einrichtung, im dargestellten Ausführungsbeispiel eine pneumatische Kolben-Zylindereinheit 39, an der Entnahmeseite aufgeklappt.In Fig. 1, a schematically reproduced stacking chamber 1 of a stacker is shown in perspective view. The stacking chamber has a rotatable stacking table 2 as well as longitudinal walls 3 and transverse walls 4. In the embodiment shown, the transverse walls 4 each consist of two pivoting doors 7, which leave a space between them through which an ejection device, not shown, can eject a stack of printed products when the opposite transverse wall is open. (For the sake of clarity, an incomplete stack of printed products 38 is shown in FIG. 1). When the stack has been erected, the pivoting doors are opened on the removal side by means of a device, in the exemplary embodiment shown a pneumatic piston-cylinder unit 39.

Um eine ungleiche Stapelhöhe bei gefalzten Druckprodukten auszugleichen, wird die Stapelkammer unter Umständen mehrmals, mindestens jedoch einmal um 180° geschwenkt, um den Stapel aufzufüllen. Diese Schwenkbewegung hat zur Folge, daß abwechselnd die Querwand, die bei einem vorhergehenden Entnahmevorgang ausgeschwenkt worden war, im nachfolgenden Stapelvorgang die Position der hinteren Querwand einnimmt, so daß beide Querwände jeweils mit Schwenktüren ausgebildet sind.In order to compensate for an uneven stack height in the case of folded printed products, the stack chamber may be pivoted several times, but at least once, by 180 ° in order to fill the stack. The consequence of this pivoting movement is that the transverse wall, which had been pivoted out during a previous removal process, alternately in the subsequent stacking takes the position of the rear transverse wall, so that both transverse walls are each formed with swing doors.

In Fig. 1 ist mit der Bezugsziffer 5 ein hier schematisch dargestellter Stelltrieb gekennzeichnet, der den Abstand der Querwände voneinander variieren kann.In Fig. 1, the reference numeral 5 denotes an actuator shown schematically here, which can vary the spacing of the transverse walls from one another.

In Fig. 2 ist eine Seitenansicht auf eine Längswand 3 der Stapelkammer 1 mit einem Teil des Stapeltischs 2 dargestellt. Die Längswand 3 trägt an ihrer Außenseite den Stelltrieb 5, der einen Zahntrieb 8 sowie, von dem Zahntrieb beaufschlagt, zwei Spindeln 10 umfaßt. Bei der dargestellten Ausführungsform ist ein Stellmotor 6 vorgesehen, der über eine Schneckenradverzahnung (vergl. Fig. 2a) zwei Abtriebsschneckenräder 12 antreibt, die beide jeweils an einer Schneckenwelle 11', die mit der Motorwelle des Stellmotors 6 drehfest verbunden ist, angeordnet sind. Die Abtriebsschneckenräder 12 sind mit einem Innengewinde 13 versehen, das mit den jeweils zugeordneten Spindeln 10 zusammenwirkt. Die eine Spindel ist mit einem Teil einer vorderen und die andere mit einem Teil einer hinteren Querwand verbunden. Die jeweiligen Enden der Spindel 10, die dem Abtriebsschneckenrad 12 abgewandt sind, sind an dem jeweiligen Teil der Querwand drehbar gehalten, so daß eine Drehung der Spindeln 10 eine Bewegung des Teils der Querwand hervorruft.FIG. 2 shows a side view of a longitudinal wall 3 of the stacking chamber 1 with part of the stacking table 2. The longitudinal wall 3 carries on its outside the actuator 5, which comprises a pinion 8 and, when the pinion acts, two spindles 10. In the embodiment shown, a servomotor 6 is provided which drives two output worm wheels 12 via a worm gear toothing (see FIG. 2a), both of which are each arranged on a worm shaft 11 'which is connected to the motor shaft of the servomotor 6 in a rotationally fixed manner. The output worm wheels 12 are provided with an internal thread 13 which interacts with the respectively assigned spindles 10. One spindle is connected to a part of a front and the other to a part of a rear transverse wall. The respective ends of the spindle 10, which face away from the output worm wheel 12, are rotatably held on the respective part of the transverse wall, so that rotation of the spindles 10 causes movement of the part of the transverse wall.

Um eine sichere Führung der Teile der jeweiligen Querwand zu gewährleisten, sind die Teile der Querwand 4 jeweils mittels Führungsstangen 14 geführt. Diese Führungsstangen 14 sind zum einen an den jeweiligen Teilen der Querwände 4 in Lagern 15 fest gelagert, wohingegen sie in Lagern 15' an der Längswand verschiebbar sind.In order to ensure reliable guidance of the parts of the respective transverse wall, the parts of the transverse wall 4 are each guided by means of guide rods 14. These guide rods 14 are on the one hand on the respective parts of the transverse walls 4 in bearings 15, whereas they are displaceable in bearings 15 'on the longitudinal wall.

Die Längswand ist mit einer Preßvorrichtung 22 zum Verdichten der gestapelten Druckprodukte ausgestattet. Hierzu ist eine Preßleiste 23 am oberen Rand der Seitenwand 3 vorgesehen. Die Preßleiste 23 ist an einem Schwenkarm 24 befestigt, der im wesentlichen c-förmig ausgebildet ist und die Anordnung des Stelltriebs 5 von außen übergreift. Zur Einstellung der Stapelkammer auf die Maße der Druckprodukte sind bei der dargestellten Ausführungsform beide Längswände 3 auf dem drehbaren Stapeltisch 2 verschiebbar gehalten.The longitudinal wall is equipped with a pressing device 22 for compressing the stacked printed products. For this purpose, a pressure bar 23 is provided on the upper edge of the side wall 3. The pressure bar 23 is fastened to a swivel arm 24 which is essentially c-shaped and engages over the arrangement of the actuator 5 from the outside. To adjust the stacking chamber to the dimensions of the printed products, both longitudinal walls 3 are held on the rotatable stacking table 2 so as to be displaceable in the embodiment shown.

In Fig. 3 ist eine Draufsicht einer schematischen Darstellung des Stelltriebs 5' für die Längswände 3 mit teilweise herausgebrochenen Bereichen des Stapeltischs 2 dargestellt.FIG. 3 shows a top view of a schematic illustration of the actuator 5 'for the longitudinal walls 3 with regions of the stacking table 2 which have partly broken away.

Der Stelltrieb 5' für die im dargestellten Ausführungsbeispiel vorgesehene Verschiebbarkeit beider Längswände ist in bzw. unter der Tischplatte 9 des Stapeltischs 2 angeordnet. Bei dem in den Fig. 3 und 4 dargestellten Ausführungsbeispiel sind beide sich gegenüberliegende Längswände 3 über einen gemeinsamen Stelltrieb 5' verschiebbar. Der Stelltrieb 5' weist einen Stellmotor 6 auf, der eine Antriebswelle 18 für beide Längswände 3 antreibt. Die Antriebswelle 18, die sich im wesentlichen senkrecht zur Längswand 3 erstreckt, weist eine Länge auf, die über die Symetrieachse zwischen den beiden Längswänden hinausführt. Auf der Antriebswelle 18 sind zwei Zahnscheiben 19 für jeweils eine Längswand 3 festgelegt. Die Zahnscheiben 19, die im dargestellten Ausführungsbeispiel sich jeweils im symetrischen Abstand zu beiden Seiten der Symetrielinie auf der Antriebswelle 18 befinden, treiben über jeweils einen Zahnriemen 20 jeweils eine Stellspindel 21 an, die jeweils eine mit einer Längswand 3 fest verbundene Kulissenmutter 31 bewegen. Die Stellspindeln weisen gegenläufige Steigungen auf, so daß eine symetrische Justierung der Längswände möglich ist.The actuator 5 'for the displaceability of the two longitudinal walls provided in the illustrated embodiment is arranged in or under the table top 9 of the stacking table 2. In the embodiment shown in FIGS. 3 and 4, both opposing longitudinal walls 3 are displaceable via a common actuator 5 '. The actuator 5 'has an actuator 6 which drives a drive shaft 18 for both longitudinal walls 3. The drive shaft 18, which extends essentially perpendicular to the longitudinal wall 3, has a length that extends beyond the axis of symmetry between the two longitudinal walls. On the drive shaft 18, two toothed disks 19 are fixed for one longitudinal wall 3 each. The toothed disks 19 in the illustrated embodiment are each at a symmetrical distance to both sides of the line of symmetry on the drive shaft 18, each drive an adjusting spindle 21 via a toothed belt 20, each of which moves a link nut 31 which is fixedly connected to a longitudinal wall 3. The adjusting spindles have opposite slopes, so that a symmetrical adjustment of the longitudinal walls is possible.

Um eine exakte parallele Position der Längswände 3 zueinander zu gewährleisten, sind den jeweiligen Längswänden je eine Linearführung 25 zugeordnet, die aus einer Führungsschiene bestehen kann. Derartige Linearführungen sind bekannt. Die jeweiligen Stellspindeln 29 sind an ihren Enden in Lagerböcken 34 mittels Kugellagern 35 gelagert. Eine ähnliche Lagerung ist für die Antriebswelle 18, die von dem zweiten Stellmotor 17 angetrieben wird, vorgesehen.In order to ensure an exact parallel position of the longitudinal walls 3 to each other, a linear guide 25 is assigned to the respective longitudinal walls, which can consist of a guide rail. Such linear guides are known. The respective adjusting spindles 29 are supported at their ends in bearing blocks 34 by means of ball bearings 35. A similar mounting is provided for the drive shaft 18, which is driven by the second servomotor 17.

In Figur 5 ist eine alternative Ausführungsform des Stelltriebs 5' für eine Längswand dargestellt. Bei dieser Ausführungsform ist der Antriebsmotor im unteren Bereich der Längswand 3 angeordnet und treibt über eine Zahnübersetzung 30, die mit einer fest im Drehtisch angeordneten Zahnstange 29 zusammenwirkt, die Längswand an. Die Zahnstange 29 kann so in dem Stapeltisch 2 angeordnet sein, daß die flachen Stirnflächen der Zahnstange in einer Ebene mit der Oberfläche der Tischplatte 9 liegen. Abhängig von der Qualität des Papiers kann es jedoch zu unerwünschten Druckmarken an dem untersten Druckprodukt kommen, wenn dieses auf die Tischplatte 9 aufgepreßt wird. Um dieses zu verhindern ist ein hoch flexibles Abdeckband 36 vorgesehen, das an der Längswand 3 befestigt ist und über an beiden Enden der im Tisch festgelegten Zahnstange 29 angeordnete Umlenkrollen 37 geführt ist und daran umläuft. Die Zahnstange 29 ist dabei um das Maß der Dicke des Abdeckbands gegenüber der Oberfläche der Tischplatte 9 nach unten gesetzt.5 shows an alternative embodiment of the actuator 5 'for a longitudinal wall. In this embodiment, the drive motor is arranged in the lower region of the longitudinal wall 3 and drives the longitudinal wall via a toothed transmission 30, which cooperates with a toothed rack 29 arranged fixedly in the turntable. The rack 29 can be arranged in the stacking table 2 in such a way that the flat end faces of the rack lie in one plane with the surface of the table top 9. Depending on the quality of the paper, however, undesirable print marks can occur on the lowermost printed product when it is pressed onto the table top 9. To prevent this, a highly flexible masking tape 36 is provided on the longitudinal wall 3 is fastened and is guided over and rotates about the deflection rollers 37 arranged at both ends of the rack 29 fixed in the table. The rack 29 is set down by the amount of the thickness of the cover tape relative to the surface of the table top 9.

Bei einer alternativen Ausführungsform, die in den Fig. 6 und 7 dargestellt ist, wird der Stelltrieb von zwei Kolben-Zylindereinheiten 27 bereitgestellt.In an alternative embodiment, which is shown in FIGS. 6 and 7, the actuating drive is provided by two piston-cylinder units 27.

Bei dem dargestellten Ausführungsbeispiel sind die Kolben-Zylindereinheiten im Winkel zu den Längswänden 3 angeordnet, um zwischen sich Platz für den Hubzylinder 39 des Stapeltischs freizulassen.In the illustrated embodiment, the piston-cylinder units are arranged at an angle to the longitudinal walls 3 in order to leave space between them for the lifting cylinder 39 of the stacking table.

Das freie Ende der Kolbenstange der Kolben-Zylinderanordnung 27 ist dabei gelenkig an einem nach unten ragenden Zapfen der Längswand befestigt. Bei dieser Ausführungsform kann ebenfalls wieder eine Linearführung in Form einer Führungsschiene Verwendung finden.The free end of the piston rod of the piston-cylinder arrangement 27 is articulated to a downwardly projecting pin of the longitudinal wall. In this embodiment, a linear guide in the form of a guide rail can also be used again.

Bei einer nicht dargestellten Ausführungsform können statt einfacher Kolben-Zylindereinheiten doppelt wirkende Kolben-Zylindereinheiten mit zwei diametral gegenüberliegenden Kolbenstangen vorgesehen sein, die jeweils an einer Längswand angreifen. Aus Symetriegründen empfiehlt es sich, zwei solcher doppelt wirkenden Zylinderanordnungen zum Einsatz zu bringen, da auf diese Weise mögliche Verkantungsprobleme bei der Führung der Längswände 3 vermieden werden können.In an embodiment that is not shown, instead of simple piston-cylinder units, double-acting piston-cylinder units can be provided with two diametrically opposed piston rods, each of which engages on a longitudinal wall. For reasons of symmetry, it is advisable to use two such double-acting cylinder arrangements, since in this way possible tilting problems when guiding the longitudinal walls 3 can be avoided.

Durch die Verwirklichung der erfindungsgemäßen Merkmale wird eine Stapelkammer geschaffen, die einfach und schnell während des Produktionslaufes einjustiert werden kann und bei der es möglich ist, auch bei kleinen Druckformaten evtl. Übergabe-Vorrichtungen stets sehr nahe an die Stapelkammer heranzuführen.By realizing the features of the invention, a stacking chamber is created that is simple and can be quickly adjusted during the production run and in which it is possible to always bring transfer devices very close to the stacking chamber even with small print formats.

Claims (15)

  1. Rotatable stacking compartment (1) in a cross-layering unit (A) for printed products, with a stacking table (2) that can be raised and rotated, the walls of the said compartment consisting of respective pairs of opposite longitudinal or transverse walls (3, 4), at least one of the two opposite walls in each case being movable relative to its opposite wall so as to allow adjustment to match the size of the printed product, and at least one wall being removable to allow ejection of the printed products stacked in the compartment,
    characterized in that
    at least one longitudinal and at least one transverse wall can be adjusted by means of a controllable positioning drive (5, 5') associated with it in each case, and the positioning drive (5) for the transverse walls at least one of which is adjustable, has a positioning motor (6) disposed on one of the longitudinal walls (3), the said motor acting via a toothed-wheel drive (8) upon at least one spindle (10) which displaces either the transverse wall (4) or part of the transverse wall (7).
  2. Stacking compartment according to Claim 1,
    characterized in that
    the toothed-wheel drive (8) for each transverse wall (4) comprises a worm-gear (11), the driven worm-gear (12) being provided with an internal thread (13) that engages with the spindle (10) attached rotatably to the associated transverse wall (4) or the corresponding part thereof.
  3. Stacking compartment according to Claims 1 or 2,
    characterized in that
    the transverse wall, or a part thereof in each case, is held on guide rods (14) that slide in bearings (15) provided on the respective longitudinal wall.
  4. Stacking compartment according to any of the preceding Claims,
    characterized in that
    at least one of the transverse walls (4) has swivelling gates (7) at the sides that can be swung outwards and that can be activated by a driving force.
  5. Stacking compartment according to any of Claims 1-4, with a pressing device (22) to compress the stacked printed products, such that the pressing device comprises a pressing bar (23) attached to a swivel arm (24) that can be swung over the stacked product,
    characterized in that
    the swivel arm (24) is essentially C-shaped and spans over the positioning drive arrangement (5) on the outside.
  6. Stacking compartment according to any of the preceding Claims,
    characterized in that
    the two longitudinal walls (3) are disposed on the rotating table so that they can move.
  7. Stacking compartment according to Claim 6,
    characterized in that
    the positioning drive (5') for the longitudinal walls at least one of which can move, is fitted in or under the table plate (9) of the stacking table (2).
  8. Stacking compartment according to Claim 7,
    characterized in that
    the two opposite longitudinal walls (3) can be moved by a common positioning drive (5').
  9. Stacking compartment according to Claim 8,
    characterized in that
    the positioning drive (5') comprises a positioning motor (6') which powers a driveshaft (18) common to both longitudinal walls (3).
  10. Stacking compartment according to Claim 9,
    characterized in that
    a toothed disc (19) is fitted to the driveshaft (18) for each longitudinal wall (3).
  11. Stacking compartment according to Claim 10,
    characterized in that
    the toothed disc (19) in each case drives a positioning spindle (21) via a toothed belt (20), so as to move a sliding nut (31) attached permanently to the longitudinal wall (3).
  12. Stacking compartment according to any of Claims 7 to 11,
    characterized in that
    the side wall (3) is guided along a linear guide (25).
  13. Stacking compartment according to Claim 12,
    characterized in that
    the linear guide (25) is a guide-rail.
  14. Stacking compartment according to Claim 7,
    characterized in that
    the positioning drive (5') for the longitudinal wall (3) comprises a pneumatic or hydraulic cylinder-piston arrangement (27) and if necessary a gear system (30).
  15. Stacking compartment according to Claim 14,
    characterized in that
    the positioning motor (6') is fitted on the side wall (3) and displaces the side wall via a toothed drive and a toothed rack (29) attached permanently to the stacking table.
EP94113231A 1993-08-25 1994-08-24 Rotatable pile table in a cross-layer for printing products Expired - Lifetime EP0640547B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4328604 1993-08-25
DE4328604A DE4328604C2 (en) 1993-08-25 1993-08-25 Rotatable stacking chamber in a stacker for printed products

Publications (2)

Publication Number Publication Date
EP0640547A1 EP0640547A1 (en) 1995-03-01
EP0640547B1 true EP0640547B1 (en) 1997-04-16

Family

ID=6496002

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94113231A Expired - Lifetime EP0640547B1 (en) 1993-08-25 1994-08-24 Rotatable pile table in a cross-layer for printing products

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US (1) US5533860A (en)
EP (1) EP0640547B1 (en)
AT (1) ATE151723T1 (en)
DE (2) DE4328604C2 (en)
DK (1) DK0640547T3 (en)

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EP3015410A1 (en) 2014-10-28 2016-05-04 Gämmerler GmbH Device and method for stacking pre-folded cartons
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Also Published As

Publication number Publication date
ATE151723T1 (en) 1997-05-15
DE4328604A1 (en) 1995-03-02
US5533860A (en) 1996-07-09
DK0640547T3 (en) 1997-10-27
DE59402430D1 (en) 1997-05-22
EP0640547A1 (en) 1995-03-01
DE4328604C2 (en) 1995-12-07

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