EP0059746A1 - Device for stacking overlapping plane products. - Google Patents

Device for stacking overlapping plane products.

Info

Publication number
EP0059746A1
EP0059746A1 EP81902651A EP81902651A EP0059746A1 EP 0059746 A1 EP0059746 A1 EP 0059746A1 EP 81902651 A EP81902651 A EP 81902651A EP 81902651 A EP81902651 A EP 81902651A EP 0059746 A1 EP0059746 A1 EP 0059746A1
Authority
EP
European Patent Office
Prior art keywords
stacking
products
space
stacking space
conveying
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP81902651A
Other languages
German (de)
French (fr)
Other versions
EP0059746B1 (en
Inventor
Walter Reist
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.)
Ferag AG
Original Assignee
Ferag AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ferag AG filed Critical Ferag AG
Priority to AT81902651T priority Critical patent/ATE18529T1/en
Publication of EP0059746A1 publication Critical patent/EP0059746A1/en
Application granted granted Critical
Publication of EP0059746B1 publication Critical patent/EP0059746B1/en
Expired legal-status Critical Current

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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
    • B65H31/24—Pile receivers multiple or compartmented, e.d. for alternate, programmed, or selective filling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
    • B65H29/003—Delivering or advancing articles from machines; Advancing articles to or into piles by grippers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
    • B65H29/70—Article bending or stiffening arrangements

Definitions

  • the present invention relates to a device for stacking flat products, preferably printed products, obtained in a shingled stream, according to the preamble of claim 1.
  • the feeder is a transporter with grippers arranged one behind the other in its conveying direction, which grasp the printed products individually and release them when triggered.
  • two stacking units are arranged at a distance one behind the other, which are alternately fed with printed products.
  • a conveyor belt arranged below the feeder and to the side of the stacking unit leads to the stacking shaft of each stacking unit and ends shortly before the stacking shaft.
  • a triggering device Seen in the conveying direction of the feeder, at a distance behind each stacking unit, a triggering device that can be switched on and off is arranged, which opens the grippers that pass by in the switched-on state.
  • the of Print products released to the grippers are taken over by the assigned conveyor belt and transported against the stacking shaft. By alternately switching the triggering devices on and off, either one or the other stacking unit is loaded.
  • the printed products fed to the conveyor belts by the feeder in a scale formation are again placed in a scale formation on the conveyor belts.
  • the printed products are also moved in a shingled stream against the stacking chutes and pushed into them, so to speak.
  • the printed products fall into the stacking shaft.
  • the time of this release cannot be precisely determined and cannot be influenced in any other way. It is therefore possible that the products do not fall into the stacking chute at regular intervals, which in certain circumstances can have an adverse effect on the quality of the product stack.
  • the products shot in by the conveyor belts in the assigned stacking shaft are moved with their leading edge against a wall of the stacking shaft, through which they are then stopped in their movement imparted by the conveyor belt. Striking the product against the stacking shaft wall can damage the product.
  • the above-explained principle of pushing the products into the stacking shaft in shingled formation also applies to the vast majority of other known stacking devices.
  • the present invention has for its object to provide a device of the type mentioned, which allows a perfect and gentle stacking of the products with a simple design.
  • the products are not conveyed from the side to the stacking space by means of a conveyor belt, but are moved over the stacking space by means of a conveying device which detects and releases the products individually.
  • the control device Through the action of the control device, the products fed in scale form are released by the conveyor device as soon as they are above the stacking space into which they subsequently fall.
  • the products conveyed to the stacking device are thus released from the scale formation above the stacking space and then travel individually and in free fall a short distance to the stacking space.
  • the device according to the invention substantially deviates from the path previously taken, which, as already mentioned, consists of guiding the products in scale formation to the stacking space and then pushing them into this stacking space.
  • these products are entered into the stacking space at substantially regular intervals, which favors the formation of a perfect stack.
  • two stacking spaces alternately supplied with products are provided in a preferred embodiment.
  • the single stack is emptied space formed from the resulting products an auxiliary or intermediate stack, which is introduced into the stack space after emptying it.
  • the single figure shows a schematic side view of a device for stacking printed products obtained in a scale formation with two stacking units.
  • the feed device for the printed products 1 in the present case is a conveyor 2, as is known from DE-OS 25 19 561 (and the corresponding US Pat. No. 3,955,667).
  • the transporter 2 has grippers 3, which are anchored at intervals on a pulling element (not shown) and guided in a guide channel, each of which holds a printed product 1.
  • the grippers 3 are moved in the direction of arrow A.
  • a feeder, not shown, which feeds the printed products 1 to the transporter 2 is connected upstream of the transporter 2.
  • This feeder can, for example, be a conveyor belt or be formed by the delivery arm of a rotary printing press.
  • the printed products 1 are conveyed as a shingled stream S by the transporter 2.
  • each printed product 1 rests on the preceding product in the manner of a roof tile, so that the leading edges 1 a of the printed products 1 are exposed and can be gripped by the grippers 3.
  • Two release devices are used to open the grippers 3
  • a signal transmitter 7 is further connected to this controller 6, which is connected upstream of the triggering devices 4 and 5. This signal transmitter 7 counts, in a manner known per se, the print products 1 running past it.
  • These stacking units 8 and 9 are of a type known per se and can be designed, for example, in the manner described in the aforementioned DE-OS 27 52 513.
  • Each stacking unit 8, 9 has a shaft-shaped stacking space 10 or 11, which is closed at the bottom by a stacking table 12 or 13.
  • the stacking tables 12 and 13 can be raised and lowered in a manner not shown in the direction of the arrows B and C, respectively. Beneath the conveyor 2 there are supports 14 and 15 in front of the stacking units 8 and 9, on which the printed products 1 come to rest with their trailing edge 1b.
  • the release device 4 is in the switched-on state, in which it causes the grippers 3 running past it to open.
  • the other triggering device 5 is switched off.
  • a gripper 3 is opened, the pressure detected by it is product released, as represented by the printed product designated 1 '.
  • This released printed product 1 ' now falls over a certain distance in free fall into the stacking space 10 of the stacking unit 8 located under the triggering device 4.
  • the printed product 1 "located in the stacking space 10 now comes on the stacking table 12 or on which it is located Stacking table 12 to be placed on the stacking table 12.
  • the stacking table 12 is lowered in accordance with the increasing height of the stack 16.
  • the stacking space 11 of the other stacking unit 9 is emptied.
  • the emptying of the stacking space 11 has already been completed and the stacking table 12 is shown in its upper distortion, in which it is ready to receive products to be stacked.
  • the triggering device 4 is switched off and the other triggering device 5 is switched on by means of the controller 6.
  • the grippers 3 now run past the triggering device 4 with the printed products 1 they have detected and are only opened by the triggering device 5.
  • the printed products released by this opening of the grippers 3 fall into the stacking shaft 11 of the stacking unit 9 located under this release device 5.
  • the stacking in the stacking space 11 takes place in the manner described with reference to the stacking unit 8. While the printed products 1 are being fed to the stacking unit 9, the stacking space 10 of the previously loaded stacking unit 8 can now be emptied.
  • the triggering devices 4 and 5 are switched over again by the control 6. This causes the stacking unit 8 to be loaded again with printed products 1 which are already on the described manner can be stacked in the stacking space 10.
  • the grippers 3 are always opened at the same location, namely at the location of the triggering device 4 or the triggering device 5.
  • the printed products 1 are accordingly controlled and always released at the same location. Since the grippers 3 are arranged at regular intervals, the printed products 1 are released at substantially the same time intervals, which facilitates an orderly stacking of the printed products 1.
  • the print products 1 are not, as in the known solutions in a scale formation, brought to the side of the stacking space 10 or 11 and shot into it, but are pulled by the transporter 2 over the stacking space 10 or 11 and then dropped. In free fall, the products 1 cover the last distance between the conveyor 2 and the stacking space 10 or 11 in a substantially vertical direction. The printed products 1 do not hit the wall of the stacking space 10, 11 at great speed.
  • stacking units are each supplied with printed products for a certain period of time in the manner described, whereupon the supply of printed products is interrupted for emptying the stacking shaft, i.e. is redirected to another stacking unit.
  • two or more stacking units it is possible to process the continuously occurring printed products 1 without problems, without the incoming print product flow having to be interrupted or delayed.
  • Such continuous processing of the incoming scale stream S is, however, also possible if only a single stacking unit is used, which is provided with an auxiliary stacking device on which the incoming printed products 1 are temporarily stacked during the emptying of the stacking space.
  • the auxiliary or intermediate stack formed in this way is transferred to the stack space after the stack space has been emptied.
  • Such a stacking unit is described for example in CH-PS 566 928.
  • suitable means can be provided in the area of the triggering devices 4 and 5, which means synchronously with the Tripping devices 4 and 5 can be brought into effect on the printed products 1.
  • stops can be provided which can be moved into the conveying path of the printed products 1.
  • conveyor devices of a suitable design can also be used, e.g. the conveyor described in DE-OS 31 02 242 (and the corresponding GB-OS 20 68 892).

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Separation, Sorting, Adjustment, Or Bending Of Sheets To Be Conveyed (AREA)
  • Discharge By Other Means (AREA)
  • Pile Receivers (AREA)

Abstract

Les produits imprimes (1) disposes en formation imbriquee (S) sont achemines vers deux unites d'empilage (8, 9) au moyen d'une installation de transport (2) munie de pinces (3) disposee l'une apres l'autre dans la direction de transport (A). Ces unites d'empilage (8, 9) sont disposees en tandem et en dessous de l'installation de transport (2). Un dispositif (4, 5) pour l'ouverture des pinces (3) est fixe au-dessus de chaque unite d'empilage (8, 9). L'un des deux dispositifs d'ouverture (4, 5) est en etat enclenche, dans lequel il ouvre les pinces lorsqu'elles defilent. Les produits imprimes (1) sont entraines, par l'installation de transport (2), au-dessus des espaces d'empilage (10, 11) des unites d'empilage (8, 9). Les produits (1')liberes lors de l'ouverture des pinces (3) au-dessus d'un espace d'empilage (10 ou 11) tombent et arrivent apres une courte chute libre dans l'espace d'empilage (10 ou 11). Pendant l'empilage des produits (1) dans l'une des unites d'empilage (8), l'autre (9) est inactive permettant de vider l'espace d'empilage (11). Par la suite, le dispositif d'ouverture (4) est declenche et l'autre (5) enclenche de facon a empiler les produits dans la seconde unite d'empilage (9).The printed products (1) arranged in a nested formation (S) are conveyed to two stacking units (8, 9) by means of a transport installation (2) provided with grippers (3) arranged one after the other in the direction of transport (A). These stacking units (8, 9) are arranged in tandem and below the transport installation (2). A device (4, 5) for opening the clamps (3) is fixed above each stacking unit (8, 9). One of the two opening devices (4, 5) is in the engaged state, in which it opens the clamps when they pass. The printed products (1) are drawn, by the transport installation (2), above the stacking spaces (10, 11) of the stacking units (8, 9). The products (1 ') released when opening the clamps (3) above a stacking space (10 or 11) fall and arrive after a short free fall in the stacking space (10 or 11). While stacking the products (1) in one of the stacking units (8), the other (9) is inactive allowing the stacking space (11) to be emptied. Subsequently, the opening device (4) is triggered and the other (5) engages so as to stack the products in the second stacking unit (9).

Description

Vorrichtung zum Stapeln von in einem Schuppenstrom anfallenden flächigen Erzeugnissen, vorzugsweise Druckprodukten. Device for stacking flat products, preferably printed products, occurring in a shingled stream.
Die vorliegende Erfindung betrifft eine Vorrichtung zum Stapeln von in einem Schuppenstrom anfallenden flächigen Erzeugnissen, vorzugsweise Druckprodukten, gemäss Oberbegriff des Anspruches 1.The present invention relates to a device for stacking flat products, preferably printed products, obtained in a shingled stream, according to the preamble of claim 1.
Bei einer derartigen, aus der DE-OS 27 52 513 (und der entsprechenden GB-PS 1 568 752) bekannten Stapelvorrichtung ist der Zubringer ein Transporteur mit in dessen Förderrichtung hintereinander angeordneten Greifern, die die Druckprodukte einzeln fassen und bei Auslösung freigeben. In Förderrichtung dieses Zubringers sind in einem Abstand hintereinander zwei Stapeleinheiten angeordnet, die abwechselnd mit Druckprodukten beschickt werden. Zum Stapelschacht jeder Stapeleinheit führt ein unterhalb des Zubringers und seitlich der Stapeleinheit angeordnetes Förderband, das kurz vor dem Stapelschacht endet. In Förderrichtung des Zubringers gesehen in einem Abstand hinter jeder Stapeleinheit ist eine ein- und ausschaltbare Auslöseeinrichtung angeordnet, die im eingeschalteten Zustand die vorbeilaufenden Greifer öffnet. Die von den Greifern freigegebenen Druckprodukte werden vom zugeordneten Förderband übernommen und gegen den Stapelschacht transportiert. Durch ein wechselweises Ein- und Ausschalten der Auslöseeinrichtungen wird entweder die eine oder die andere Stapeleinheit beschickt.In such a stacking device known from DE-OS 27 52 513 (and the corresponding GB-PS 1 568 752), the feeder is a transporter with grippers arranged one behind the other in its conveying direction, which grasp the printed products individually and release them when triggered. In the conveying direction of this feeder, two stacking units are arranged at a distance one behind the other, which are alternately fed with printed products. A conveyor belt arranged below the feeder and to the side of the stacking unit leads to the stacking shaft of each stacking unit and ends shortly before the stacking shaft. Seen in the conveying direction of the feeder, at a distance behind each stacking unit, a triggering device that can be switched on and off is arranged, which opens the grippers that pass by in the switched-on state. The of Print products released to the grippers are taken over by the assigned conveyor belt and transported against the stacking shaft. By alternately switching the triggering devices on and off, either one or the other stacking unit is loaded.
Die durch den Zubringer in einer Schuppenformation den Förderbändern zugeführten Druckprodukte werden wieder in einer Schuppenformation auf die Förderbänder abgelegt. Somit werden die Druckprodukte durch die Förderbänder ebenfalls in einem Schuppenstrom gegen die Stapelschächte bewegt und in diese sozusagen hineingestossen. Nach Freigabe durch das Förderband fallen die Druckprodukte in den Stapelschacht. Der Zeitpunkt dieser Freigabe lässt sich jedoch nicht genau festlegen und auch nicht ohneweiteres beeinflussen. Es ist daher möglich, dass die Produkte nicht in regelmässigen Zeitabständen in den Stapelschacht fallen, was sich unter Umständen nachteilig auf die Qualität des Produktestapels auswirken kann.The printed products fed to the conveyor belts by the feeder in a scale formation are again placed in a scale formation on the conveyor belts. Thus, the printed products are also moved in a shingled stream against the stacking chutes and pushed into them, so to speak. After being released by the conveyor belt, the printed products fall into the stacking shaft. However, the time of this release cannot be precisely determined and cannot be influenced in any other way. It is therefore possible that the products do not fall into the stacking chute at regular intervals, which in certain circumstances can have an adverse effect on the quality of the product stack.
Die wie bereits erwähnt durch die Förderbänder in den zugeordneten Stapelschacht eingeschossenen Produkte werden mit ihrer vorlaufenden Kante gegen eine Wand des Stapelschachtes bewegt, durch die sie dann in ihrer durch das Förderband erteilten Bewegung gestoppt werden. Dieses Anschlagen der Produkte an der Stapelschachtwand kann zu einer Beschädigung der Produkte führen. Das vorstehend erläuterte Prinzip des Hineinstossens der Produkte in den Stapelschacht in Schuppenformation findet ebenfalls bei den allermeisten anderen bekannten Stapelvorrichtungen Anwendung.As already mentioned, the products shot in by the conveyor belts in the assigned stacking shaft are moved with their leading edge against a wall of the stacking shaft, through which they are then stopped in their movement imparted by the conveyor belt. Striking the product against the stacking shaft wall can damage the product. The above-explained principle of pushing the products into the stacking shaft in shingled formation also applies to the vast majority of other known stacking devices.
Der vorliegenden Erfindung liegt nun die Aufgabe zugrunde, eine Vorrichtung der eingangs genannten Art zu schaffen, die bei einfacher Bauweise ein einwandfreies und schonendes Stapeln der Erzeugnisse ermöglicht.The present invention has for its object to provide a device of the type mentioned, which allows a perfect and gentle stacking of the products with a simple design.
Im Gegensatz zur bereits erwähnten, bekannten Lösung werden die Erzeugnisse nicht mit einem Förderband von der Seite her zum Stapelraum gefördert, sondern mittels einer die Erzeugnisse einzeln erfassenden und auch einzeln freigebenden Fördereinrichtung über den Stapelraum bewegt. Durch Einwirkung der Steuereinrichtung werden die in Schuppenformation zugeführten Erzeugnisse von der Fördereinrichtung freigegeben, sobald sie sich über dem Stapelraum befinden, in den sie anschliessend hineinfallen. Die zur Stapeleinrichtung geförderten Erzeugnisse werden also über dem Stapelraum aus der Schuppenformation gelöst und legen dann einzeln und im freien Fall eine kurze Strecke bis zum Stapelraum zurück. Somit wird mit der erfindungsgemässen Vorrichtung erheblich vom bisherig eingeschlagenen Weg abgewichen, der wie bereits erwähnt darin besteht, die Erzeugnisse in Schuppenformation bis an den Stapelraum zu führen und anschliessend in diesen Stapelraum einzuschieben.In contrast to the known solution already mentioned, the products are not conveyed from the side to the stacking space by means of a conveyor belt, but are moved over the stacking space by means of a conveying device which detects and releases the products individually. Through the action of the control device, the products fed in scale form are released by the conveyor device as soon as they are above the stacking space into which they subsequently fall. The products conveyed to the stacking device are thus released from the scale formation above the stacking space and then travel individually and in free fall a short distance to the stacking space. Thus, the device according to the invention substantially deviates from the path previously taken, which, as already mentioned, consists of guiding the products in scale formation to the stacking space and then pushing them into this stacking space.
Durch das gesteuerte Freigeben der Erzeugnisse erfolgt die Eingabe dieser Erzeugnisse in den Stapelraum in im wesentlichen regelmässigen zeitlichen Abständen, was die Bildung eines einwandfreien Stapels begünstigt.Through the controlled release of the products, these products are entered into the stacking space at substantially regular intervals, which favors the formation of a perfect stack.
Um ein periodisches Entleeren des Stapelraumes zu ermöglichen, ohne dass der durch die Fördereinrichtung kontinuierlich zugeführte Erzeugnisstrom unterbrochen werden muss, werden bei einer bevorzugten Ausführungsform gemäss Anspruch 3 zwei abwechselnd mit Erzeugnissen belieferte Stapelräume vorgesehen. Bei der im Anspruch 4 definierten Variante wird während des Entleerens des einzigen Stapel raumes aus den anfallenden Erzeugnissen ein Hilfs- oder Zwischenstapel gebildet, der nach Entleeren des Stapelraumes in diesen eingebracht wird.In order to enable periodic emptying of the stacking space without having to interrupt the product flow continuously supplied by the conveying device, two stacking spaces alternately supplied with products are provided in a preferred embodiment. In the variant defined in claim 4, the single stack is emptied space formed from the resulting products an auxiliary or intermediate stack, which is introduced into the stack space after emptying it.
Im folgenden wird anhand der Zeichnung ein Ausführungs- beispiel des Erfindungsgegenstandes näher erläutert. Die einzige Figur zeigt in einer schematischen Seitenansicht eine Vorrichtung zum Stapeln von in einer Schuppenformation anfallenden Druckprodukten mit zwei Stapeleinheiten.An exemplary embodiment of the subject matter of the invention is explained in more detail below with reference to the drawing. The single figure shows a schematic side view of a device for stacking printed products obtained in a scale formation with two stacking units.
Die Zuführeinrichtung für die Druckprodukte 1 ist im vorliegenden Fall ein Transporteur 2, wie er aus der DE-OS 25 19 561 (und der entsprechenden US-PS 3 955 667) bekannt ist. Für eine ausführliche Beschreibung des Aufbaues und der Wirkungsweise wird daher auf diese Druckschriften verwiesen. Der Transporteur 2 weist an einem nicht gezeigten und in einem Führungskanal geführten Zugorgan in Abständen verankerte Greifer 3 auf, von denen jeder ein Druckprodukt 1 festhält. Die Greifer 3 werden in Richtung des Pfeiles A bewegt. Dem Transporteur 2 ist ein nicht dargestellter Zubringer vorgeschaltet, der die Druckprodukte 1 dem Transporteur 2 zuführt. Dieser Zubringer kann beispielsweise ein Förderband sein oder durch den Ausleger einer Rotationsdruckmaschine gebildet werden.The feed device for the printed products 1 in the present case is a conveyor 2, as is known from DE-OS 25 19 561 (and the corresponding US Pat. No. 3,955,667). For a detailed description of the structure and mode of operation, reference is therefore made to these publications. The transporter 2 has grippers 3, which are anchored at intervals on a pulling element (not shown) and guided in a guide channel, each of which holds a printed product 1. The grippers 3 are moved in the direction of arrow A. A feeder, not shown, which feeds the printed products 1 to the transporter 2 is connected upstream of the transporter 2. This feeder can, for example, be a conveyor belt or be formed by the delivery arm of a rotary printing press.
Die Druckprodukte 1 werden als Schuppenstrom S durch den Transporteur 2 gefördert. In diesem Schuppenstrom S liegt jedes Druckprodukt 1 dachziegelartig auf dem vorangehenden Produkt auf, so dass die vorlaufenden Kanten la der Druckprodukte 1 freiliegen und von den Greifern 3 erfasst werden können. Zum Oeffnen der Greifer 3 dienen zwei AuslöseeinrichtungeThe printed products 1 are conveyed as a shingled stream S by the transporter 2. In this scale stream S, each printed product 1 rests on the preceding product in the manner of a roof tile, so that the leading edges 1 a of the printed products 1 are exposed and can be gripped by the grippers 3. Two release devices are used to open the grippers 3
4 und 5, die in Förderrichtung A in einem Abstand hintereinander angeordnet sind. Diese Auslöseeinrichtungen 4 und 5 werden mittels einer nicht näher dargestellten Steuereinrichtung 6 wechselweise ein- und ausgeschaltet. Mit dieser Steuerung 6 ist weiter ein Signalgeber 7 verbunden, der den Auslöseeinrichtungen 4 und 5 vorgelagert ist. Dieser Signalgeber 7 zählt auf an sich bekannte Weise die an ihm vorbeilaufenden Druckprodukte 1.4 and 5, which are arranged one behind the other in the conveying direction A. These triggering devices 4 and 5 are alternately switched on and off by means of a control device 6, not shown in detail. A signal transmitter 7 is further connected to this controller 6, which is connected upstream of the triggering devices 4 and 5. This signal transmitter 7 counts, in a manner known per se, the print products 1 running past it.
Unter jeder Auslöseeinrichtung 4 bzw. 5 und unterhalb des Transporteurs 2 ist eine nur rein schematisch dargestellte Stapeleinheit 8 bzw. 9 angeordnet. Diese Stapeleinheiten 8 und 9 sind an sich bekannter Bauart und können beispielsweise auf die in der bereits erwähnten DE- OS 27 52 513 beschriebene Weise ausgebildet werden. Jede Stapeleinheit 8,9 weist einen schachtförmigen Stapelraum 10 bzw. 11 auf, der unten durch einen Stapeltisch 12 bzw. 13 abgeschlossen ist. Die Stapeltische 12 und 13 sind auf nicht näher dargestellte Weise in Richtung des Pfeiles B bzw. C heb- und senkbar. Unterhalb des Transporteurs 2 sind vor den Stapeleinheiten 8 und 9 Auflagen 14 und 15 angeordnet, auf denen die Druckprodukte 1 mit ihrer nachlaufenden Kante 1b zur Auflage kommen.A stacking unit 8 or 9, which is only shown schematically, is arranged under each triggering device 4 or 5 and below the conveyor 2. These stacking units 8 and 9 are of a type known per se and can be designed, for example, in the manner described in the aforementioned DE-OS 27 52 513. Each stacking unit 8, 9 has a shaft-shaped stacking space 10 or 11, which is closed at the bottom by a stacking table 12 or 13. The stacking tables 12 and 13 can be raised and lowered in a manner not shown in the direction of the arrows B and C, respectively. Beneath the conveyor 2 there are supports 14 and 15 in front of the stacking units 8 and 9, on which the printed products 1 come to rest with their trailing edge 1b.
Die vorstehend beschriebene Vorrichtung arbeitet wie folgt:The device described above works as follows:
In dem in der Figur gezeigten Zeitpunkt befindet sich die Auslöseeinrichtung 4 im eingeschalteten Zustand, in dem sie ein Oeffnen der vσrbeilaufenden Greifer 3 bewirkt. Die andere Auslöseeinrichtung 5 ist ausgeschaltet. Beim Oeffnen eines Greifers 3 wird das von diesem erfasste Druckpro dukt freigegeben, wie das durch das mit 1' bezeichnete Druckprodukt dargestellt ist. Dieses freigegebene Druckprodukt 1' fällt nun über eine gewisse Strecke im freien Fall in den Stapelraum 10 der sich unter der Auslöseeinrichtung 4 befindlichen Stapeleinheit 8. Das sich im Stapelraum 10 befindliche Druckprodukt 1" kommt nun auf dem Stapeltisch 12 bzw. auf dem sich auf diesem Stapeltisch 12 befindlichen Stapel 16 zur Auflage. Der Stapeltisch 12 wird der wachsenden Höhe des Stapels 16 entsprechend abgesenkt.At the point in time shown in the figure, the release device 4 is in the switched-on state, in which it causes the grippers 3 running past it to open. The other triggering device 5 is switched off. When a gripper 3 is opened, the pressure detected by it is product released, as represented by the printed product designated 1 '. This released printed product 1 'now falls over a certain distance in free fall into the stacking space 10 of the stacking unit 8 located under the triggering device 4. The printed product 1 "located in the stacking space 10 now comes on the stacking table 12 or on which it is located Stacking table 12 to be placed on the stacking table 12. The stacking table 12 is lowered in accordance with the increasing height of the stack 16.
Während der Stapelung der Druckprodukte 1 in der Stapeleinheit 8 wird der Stapelraum 11 der andern Stapeleinheit 9 entleert. Im in der Figur dargestellten Zeitpunkt ist die Entleerung des Stapelraumes 11 bereits abgeschlossen und der Stapeltisch 12 ist in seiner oberen Entstellung dargestellt, in der er zur Aufnahme von zu stapelnden Erzeugnissen bereit ist.During the stacking of the printed products 1 in the stacking unit 8, the stacking space 11 of the other stacking unit 9 is emptied. At the point in time shown in the figure, the emptying of the stacking space 11 has already been completed and the stacking table 12 is shown in its upper distortion, in which it is ready to receive products to be stacked.
Nachdem im Stapelraum 10 der Stapeleinheit 8 eine vorgegebene Anzahl von Druckprodukten 1, die durch den Signalgeber 7 gezählt werden, gestapelt worden sind, wird mittels der Steuerung 6 die Auslöseeinrichtung 4 ausgeschaltet und die andere Auslöseeinrichtung 5 eingeschaltet. Die Greifer 3 laufen nun mit den von ihnen erfassten Druckprodukten 1 an der Auslöseeinrichtung 4 vorbei und werden erst durch die Auslöseeinrichtung 5 geöffnet. Die durch dieses Oeffnen der Greifer 3 freigegebenen Druckprodukte fallen in den sich unter dieser Auslöseeinrichtung 5 befindlichen Stapelschacht 11 der Stapeleinheit 9. Die Stapelbildung im Stapelraum 11 erfolgt auf die anhand der Stapeleinheit 8 beschriebene Weise. Währenddem die Druck-Produkte 1 der Stapeleinheit 9 zugeführt werden, kann nun der Stapelraum 10 der vorgängig beschickten Stapeleinheit 8 entleert werden.After a predetermined number of printed products 1, which are counted by the signal generator 7, have been stacked in the stacking space 10 of the stacking unit 8, the triggering device 4 is switched off and the other triggering device 5 is switched on by means of the controller 6. The grippers 3 now run past the triggering device 4 with the printed products 1 they have detected and are only opened by the triggering device 5. The printed products released by this opening of the grippers 3 fall into the stacking shaft 11 of the stacking unit 9 located under this release device 5. The stacking in the stacking space 11 takes place in the manner described with reference to the stacking unit 8. While the printed products 1 are being fed to the stacking unit 9, the stacking space 10 of the previously loaded stacking unit 8 can now be emptied.
Nachdem im Stapelraum 11 der Stapeleinheit 9 eine gegebene Anzahl von Druckprodukten 1 gestapelt worden ist, erfolgt ein erneutes Umschalten der Auslöseeinrichtungen 4 und 5 durch die Steuerung 6. Dadurch wird bewirkt, dass wieder die Stapeleinheit 8 mit Druckprodukten 1 beschickt wird, die auf die bereits beschriebene Weise im Stapelraum 10 gestapelt werden.After a given number of printed products 1 have been stacked in the stacking space 11 of the stacking unit 9, the triggering devices 4 and 5 are switched over again by the control 6. This causes the stacking unit 8 to be loaded again with printed products 1 which are already on the described manner can be stacked in the stacking space 10.
Das Oeffnen der Greifer 3 erfolgt immer an derselben Stelle, nämlich am Ort der Auslöseeinrichtung 4 oder der Auslöseeinrichtung 5. Die Druckprodukte 1 werden demnach gesteuert und immer am selben Ort freigegeben. Da die Greifer 3 in regelmässigen Abständen angeordnet sind, werden die Druckprodukte 1 im wesentlichen in gleichen zeitlichen Abständen freigegeben, was ein geordnetes Stapeln der Druckprodukte 1 erleichtert. Die Druckprcdukte 1 werden nicht wie bei den bekannten Lösungen in Schuppenformation seitlich an den Stapelraum 10 bzw. 11 herangeführt und in diesen eingeschossen, sondern werden durch den Transporteur 2 über den Stapelraum 10 bzw. 11 gezogen und dann fallengelassen. Die letzte Strecke zwischen dem Transporteur 2 und dem Stapelraum 10 bzw. 11 legen die Produkte 1 in freiem Fall in im wesentlichen vertikaler Richtung zurück. Die Druckprodukte 1 stossen nicht mit grosser Geschwindigkeit gegen die Wand des Stapelraumes 10,11. Auch wenn die Druckproduktelwährend ihres freien Falles mit der Stapelraumwand in Berührung kommen, erfolgt dies mit einer verhältnismässig geringen Kraft, so dass eine Beschädigung der Druckprodukte 1 vermieden wird. Es versteht sich, dass die vorstehend beschriebene Vorrichtung in verschiedenen Teilen auch anders ausgebildet werden kann. Im folgenden wird auf einige der möglichen Varianten hingewiesen.The grippers 3 are always opened at the same location, namely at the location of the triggering device 4 or the triggering device 5. The printed products 1 are accordingly controlled and always released at the same location. Since the grippers 3 are arranged at regular intervals, the printed products 1 are released at substantially the same time intervals, which facilitates an orderly stacking of the printed products 1. The print products 1 are not, as in the known solutions in a scale formation, brought to the side of the stacking space 10 or 11 and shot into it, but are pulled by the transporter 2 over the stacking space 10 or 11 and then dropped. In free fall, the products 1 cover the last distance between the conveyor 2 and the stacking space 10 or 11 in a substantially vertical direction. The printed products 1 do not hit the wall of the stacking space 10, 11 at great speed. Even if the printed products come into contact with the stack space wall during their free fall, this takes place with a relatively small force, so that damage to the printed products 1 is avoided. It goes without saying that the device described above can also be designed differently in different parts. Some of the possible variants are pointed out below.
So ist es auch möglich, in Förderrichtung A des Transporteurs 2 mehr als zwei gleiche Stapeleinheiten hintereinander anzuordnen. Diese Stapeleinheiten werden auf die beschriebene Weise jeweils während einer gewissen Zeitspanne mit Druckprodukten beliefert, worauf anschliessend zur Entleerung des Stapelschachtes die Druckproduktezufuhr unterbrochen, d.h. auf eine andere Stapeleinheit umgeleitet wird. Durch das Vorsehen von zwei und mehr Stapeleinheiten ist es möglich, die kontinuerlich anfallenden Druckprodukte 1 einwandfrei zu verarbeiten, ohne dass der ankommende Druckproduktestrom unterbrochen oder verzögert werden muss. Eine solche kontinuierliche Verarbeitung des ankommenden Schuppenstromes S ist jedoch auch möglich, wenn nur eine einzige Stapeleinheit verwendet wird, welche mit einer Hilfsstapeleinrichtung versehen ist, auf welcher während des Entleerens des Stapelraumes die ankommenden Druckprodukte 1 vorübergehend gestapelt werden. Der auf diese Weise gebildete Hilfsoder Zwischenstapel wird nach erfolgtem Entleeren des Stapelraumes an diesen übergeben. Eine derartige Stapeleinheit ist beispielsweise in der CH-PS 566 928 beschrieben.It is thus also possible to arrange more than two identical stacking units one behind the other in the conveying direction A of the conveyor 2. These stacking units are each supplied with printed products for a certain period of time in the manner described, whereupon the supply of printed products is interrupted for emptying the stacking shaft, i.e. is redirected to another stacking unit. By providing two or more stacking units, it is possible to process the continuously occurring printed products 1 without problems, without the incoming print product flow having to be interrupted or delayed. Such continuous processing of the incoming scale stream S is, however, also possible if only a single stacking unit is used, which is provided with an auxiliary stacking device on which the incoming printed products 1 are temporarily stacked during the emptying of the stacking space. The auxiliary or intermediate stack formed in this way is transferred to the stack space after the stack space has been emptied. Such a stacking unit is described for example in CH-PS 566 928.
Unter Umständen kann es erforderlich sein, nach der Freigabe der Druckprodukte 1 deren Vorwärtsbewegung in Förderrichtung A des Transporteurs 2 abzubremsen. Zu diesem Zwecke können im Bereich der Auslöseeinrichtungen 4 und 5 geeignete Mittel vorgesehen werden, die synchron zu den Auslöseeinrichtungen 4 und 5 auf die Druckprodukte 1 zur Einwirkung gebracht werden können. So lassen sich beispielsweise Anschläge vorsehen, die in den Förderweg der Druckprodukte 1 eingefahren werden können. Eine derartige Lösung ist beispielsweise im Schweizer Patentgesuch Nr. 6 923/80 näher beschrieben. Im weitern ist es auch denkbar eine Rückhalteeinrichtung vorzusehen, die kurzzeitig auf das freigegebene Druckprodukt einwirkt und dieses abbremst.Under certain circumstances, it may be necessary to slow down the forward movement in the conveying direction A of the transporter 2 after the release of the printed products 1. For this purpose, suitable means can be provided in the area of the triggering devices 4 and 5, which means synchronously with the Tripping devices 4 and 5 can be brought into effect on the printed products 1. For example, stops can be provided which can be moved into the conveying path of the printed products 1. Such a solution is described, for example, in Swiss Patent Application No. 6 923/80. Furthermore, it is also conceivable to provide a restraint device which acts briefly on the released printed product and brakes it.
Anstelle des Transporteurs 2 lassen sich auch andere Fördereinrichtungen geeigneter Bauart verwenden, so z.B. die in der DE-OS 31 02 242 (und der entsprechenden GB-OS 20 68 892) beschriebene Fördereinrichtung. Instead of the transporter 2, other conveyor devices of a suitable design can also be used, e.g. the conveyor described in DE-OS 31 02 242 (and the corresponding GB-OS 20 68 892).

Claims

P a t e n t a n s p r ü c h e Patent claims
1. Vorrichtung zum Stapeln von in einem Schuppenstrom anfallenden flächigen Erzeugnissen, vorzugsweise Druckprodukten, mit einer Stapeleinrichtung, die wenigstens einen periodisch entleerbaren Stapelraum zur Bildung von Stapeln aufweist, mit einer die Erzeugnisse dem Stapelraum zuführenden Zuführeinrichtung, sowie mit einem letzterer vorgeschalteten Zubringer zum Zubringen der Erzeugnisse zur Zuführeinrichtung, dadurch gekennzeichnet, dass die Zuführeinrichtung eine die Erzeugnisse (1) einzeln erfassende und einzeln freigebende Fördereinrichtung (2) ist, die über dem Stapelraum (9,10) verläuft und dass über dem Stapelraum (10,11) eine auf die Fördereinrichtung (2) zur Einwirkung bringbare Steuereinrichtung (4,5) angeordnet ist, die ein Freigeben der sich über dem Stapelraum (10,11) befindlichen Erzeugnisse (1) durch die Fördereinrichtung (2) bewirkt.1.Device for stacking two-dimensional products, preferably printed products, in a shingled stream, with a stacking device which has at least one periodically emptied stacking space for forming stacks, with a feed device feeding the products to the stacking space, and with a feeder connected upstream of the latter for feeding the Products for the feed device, characterized in that the feed device is a conveyor device (2) which detects and releases the products (1) individually and runs over the stacking space (9, 10) and that one over the stacking space (10, 11) Conveying device (2) which can be brought into action is arranged control device (4,5) which causes the products (1) located above the stacking space (10,11) to be released by the conveying device (2).
2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die Fördereinrichtung (2) in deren Förderrichtung (A) hintereinander angeordnete, einzeln auslös bare Greiforgane (3) aufweist, die die einzeln er fassten Erzeugnisse (1) bei Auslösung durch die Steuereinrichtung (4,5) freigeben.2. Device according to claim 1, characterized in that the conveyor (2) in its conveying direction (A) arranged one behind the other, triggers bare gripping members (3), which release the individually captured products (1) when triggered by the control device (4,5).
3. Vorrichtung nach Anspruch 1 oder 2 , dadurch gekennzeichnet, dass die Stapeleinrichtung wenigstens zwei unterhalb der Fördereinrichtung (2) und in deren Förderrichtung (A) hintereinander angeordnete Stapelräume (10,11) aufweist und dass über jedem Stapelraum (10,11) eine ein- und ausschaltbara Steuereinrichtung (4,5) angeordnet ist, die in eingeschaltetem Zustand ein Freigeben der Erzeugnisse (1) bewirkt, wobei die beiden Steuereinrichtungen (4,5) abwechselnd während einer Zeitspanne einschaltbar sind, um eine wechselweise Freigabe der Erzeugnisse (1) über dem einen oder dem anderen Stapelraum (10,11) zu bewirken.3. Device according to claim 1 or 2, characterized in that the stacking device has at least two stacking spaces (10, 11) arranged one behind the other below the conveying device (2) and in their conveying direction (A) and that one over each stacking space (10, 11) A control device (4, 5) can be switched on and off which, when switched on, releases the products (1), the two control devices (4, 5) being able to be switched on alternately for a period of time in order to enable the products (1 ) over one or the other stacking space (10, 11).
4. Vorrichtung nach Anspruch 1 oder 2, gekennzeichnet durch eine Hilfsstapeleinriσhtung zum vorübergehenden Stapeln der von der Fördereinrichtung (2) freigegebenen Erzeugnisse (1) während des Entleerens des Stapelraumes (10,11).4. Apparatus according to claim 1 or 2, characterized by an auxiliary stacking device for temporarily stacking the products (1) released by the conveying device (2) during the emptying of the stacking space (10, 11).
5. Vorrichtung nach einem der Ansprüche 1 - 4, dadurch gekennzeichnet, dass im Bereich jeder Steuereinrichtung (4,5) Mittel zum Abbremsen der Bewegung der freigegebenen Erzeugnisse (1) in Förderrichtung (A) der Fördereinrichtung (2) vorgesehen sind. 5. Device according to one of claims 1-4, characterized in that means for braking the movement of the released products (1) in the conveying direction (A) of the conveying device (2) are provided in the region of each control device (4, 5).
EP81902651A 1980-09-16 1981-09-14 Device for stacking overlapping plane products Expired EP0059746B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81902651T ATE18529T1 (en) 1980-09-16 1981-09-14 DEVICE FOR STACKING FLAT PRODUCTS OCCURRING IN A SHED STREAM.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH6923/80 1980-09-16
CH6923/80A CH648261A5 (en) 1980-09-16 1980-09-16 DEVICE FOR RELEASING PRINTED PRODUCTS CONTAINED BY A CONVEYOR FROM THE CONVEYOR.

Publications (2)

Publication Number Publication Date
EP0059746A1 true EP0059746A1 (en) 1982-09-15
EP0059746B1 EP0059746B1 (en) 1986-03-12

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EP81902651A Expired EP0059746B1 (en) 1980-09-16 1981-09-14 Device for stacking overlapping plane products

Country Status (8)

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US (1) US4666143A (en)
EP (1) EP0059746B1 (en)
JP (2) JPH0138743B2 (en)
AU (1) AU7582281A (en)
BE (1) BE890357A (en)
CH (1) CH648261A5 (en)
WO (1) WO1982000995A1 (en)
ZA (1) ZA816310B (en)

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Also Published As

Publication number Publication date
WO1982000995A1 (en) 1982-04-01
US4666143A (en) 1987-05-19
JPS57501372A (en) 1982-08-05
AU7582281A (en) 1982-04-14
ZA816310B (en) 1982-09-29
CH648261A5 (en) 1985-03-15
JPS5785756A (en) 1982-05-28
BE890357A (en) 1982-03-15
JPH0138743B2 (en) 1989-08-16
JPS6327251B2 (en) 1988-06-02
EP0059746B1 (en) 1986-03-12

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