EP0013920B1 - Device for feeding a conveyor with flat objects in shingled formation, in particular printed products - Google Patents

Device for feeding a conveyor with flat objects in shingled formation, in particular printed products Download PDF

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Publication number
EP0013920B1
EP0013920B1 EP80100151A EP80100151A EP0013920B1 EP 0013920 B1 EP0013920 B1 EP 0013920B1 EP 80100151 A EP80100151 A EP 80100151A EP 80100151 A EP80100151 A EP 80100151A EP 0013920 B1 EP0013920 B1 EP 0013920B1
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EP
European Patent Office
Prior art keywords
products
conveying
printed products
entrainment
printed
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP80100151A
Other languages
German (de)
French (fr)
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EP0013920A1 (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
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Filing date
Publication date
Application filed by Ferag AG filed Critical Ferag AG
Priority to AT80100151T priority Critical patent/ATE1544T1/en
Publication of EP0013920A1 publication Critical patent/EP0013920A1/en
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Publication of EP0013920B1 publication Critical patent/EP0013920B1/en
Expired legal-status Critical Current

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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
    • B65H29/00Delivering or advancing articles from machines; Advancing articles to or into piles
    • B65H29/66Advancing articles in overlapping streams
    • B65H29/669Advancing articles in overlapping streams ending an overlapping stream
    • 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
    • B65H2301/43Gathering; Associating; Assembling
    • B65H2301/435Gathering; Associating; Assembling on collecting conveyor
    • B65H2301/4354Gathering; Associating; Assembling on collecting conveyor with grippers
    • 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
    • B65H2301/44Moving, forwarding, guiding material
    • B65H2301/447Moving, forwarding, guiding material transferring material between transport devices
    • B65H2301/4471Grippers, e.g. moved in paths enclosing an area
    • B65H2301/44712Grippers, e.g. moved in paths enclosing an area carried by chains or bands
    • 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
    • B65H2301/44Moving, forwarding, guiding material
    • B65H2301/447Moving, forwarding, guiding material transferring material between transport devices
    • B65H2301/4473Belts, endless moving elements on which the material is in surface contact
    • B65H2301/44732Belts, endless moving elements on which the material is in surface contact transporting articles in overlapping stream

Definitions

  • the present invention relates to a device for supplying flat products, in particular printed products, which accumulate in a shingled stream, to a conveyor according to the preamble of claim 1.
  • a printed product is fed to each gripper of the transporter.
  • the conveying speed of the transporter corresponds to the conveying speed of the feed device, which in turn is adapted to the delivery speed of the shingled stream. If the stream of shingles is now delivered at high speed, eg from a .9otation printing machine, the correspondingly high running speed of the transporter may result in a. increased wear of the latter.
  • the present invention is based on the object of making it possible to reduce the running speed of the conveyor without simultaneously reducing the conveying speed of the feed device accordingly.
  • the print products 1 occurring in a shingled stream S are fed in by means of a feed belt 2 which is only partially shown.
  • the individual printed products 1 lie on top of one another in the shingled stream S in the manner of roof tiles, each printed product 1 in each case resting on the leading printed product.
  • the leading edge 1a of each printed product 1, which in the present exemplary embodiment is the folded edge (collar), is thus exposed, while the trailing edge 1 of each printed product 1 is covered by the subsequent printed product.
  • the feed belt 2 is guided over a deflection roller 3, which is driven by a drive chain 4 from the source generating the scale stream S, e.g. B. a rotary printing press is driven.
  • the feeder belt 2 is followed by an endless intermediate belt 5, which is guided over deflection rollers 6 and 7.
  • the conveyor-effective strand of this intermediate belt 5 runs in an increasing direction.
  • the deflection roller 6 is driven by means of a drive chain 8 from the deflection roller 3.
  • the shingled stream S conveyed by the belts 2 and 5 in the direction of arrow A is taken over by a conveying member 9 following the intermediate belt 5.
  • the latter has two endless traction elements 10 arranged at a distance, only one of which is visible in the figures and which are guided over two deflection rollers 11 and 12.
  • At these traction elements 10 drivers 13 are arranged at regular intervals, which are provided on their leading edge with a stop surface 13a for taking the printed products 1 with them.
  • the distance b between the abutment surfaces 13a of adjacent drivers 13 is greater than the distance a between the trailing edges 1b of printed products 1 lying one above the other.
  • B. a suction head, which is connected via a connecting line 15 with a vacuum source (60). 2
  • this holding member 14 is shown on an enlarged scale.
  • a guide ramp 16 is arranged in the end region of the conveyor-effective section of the carriers 13, which ensures a perfect transfer of the printed products 1 to a conveyor 17.
  • This conveyor 17, of which only a part is shown corresponds in structure and mode of operation to that in DE-A-2 519 561 or the corresponding US-A-3 955 667 geof open carrier, so that a detailed description is unnecessary.
  • grippers 19 On a pulling element, not shown, which is guided around the deflection wheel 18, grippers 19 arranged one behind the other in the conveying direction B are fastened.
  • Each gripper 19 has an upper, fixed jaw 20 and a lower, movable jaw 21. In the closed position of the lower jaw 21, the detected printed products 1 are held between the two jaws 20 and 21.
  • the movable clamping jaw 21 is held in its clamping position by means of a locking member 22.
  • the feed dog 17 is driven by a drive motor 23, the drive speed of which is controlled by a drive controller 24.
  • This drive controller 24 is supplied with the signals from a speed sensor 25, which is coupled to the deflection roller 3, and a signal transmitter 26, which is applied to the trailing trailing edges 1 of the printed products
  • the drive controller 24 processes the received signals and influences the drive motor 23 in a manner known per se, which is not shown in detail, in order to adapt the running speed of the feed dog 17 to the speed of the printing product flow S occurring.
  • the conveyor element 9 is driven by the conveyor 17, namely at a speed which is greater than the feed speed of the shingled stream S.
  • the device described works as follows.
  • the shingled stream S fed by the belts 2 and 5 is passed under by the drivers 13 of the conveying element 3.
  • These drivers 13 engage with their abutment surface 13a on the trailing edge 1b of the printed products 1 and convey the printed products detected in this way to the conveyor 17. Since, as already mentioned, the distance b between adjacent drivers 13 is greater than the distance a between the trailing edges 1b of products 1 lying one on top of the other (b> 2a), a driver 13 is not assigned to every printed product 1, but only to every second printed product. At the beginning of the conveyor-effective route of the drivers 13, not every printed product, but every second printed product, is thus gripped by a driver 13.
  • each driver 13 thus conveys two printed products 1 which lie one on top of the other. These two superimposed products are pushed over the guide ramp 16 into the takeover area of the grippers 19.
  • the grippers 19 reaching this transfer area in the open state grip the two superimposed printed products 1 on their leading edge 1 in a known manner and convey the captured print products 1 to a processing station (not shown).
  • the printed products 1 are delivered to this and can either be processed as two to two or be pulled apart again to form a new scale flow.
  • the conveyor 17 can be driven at a conveying speed which is half as large as the conveying speed of the belts 2 and 5 of the conveyor element 9. Nevertheless, the conveyor 17 is able to handle all of the printed products to carry away. It is also possible, instead of keeping the holding member 14 permanently connected to the negative pressure source, to connect this holding member 14 periodically to the negative pressure source in order to release the detected printed product by a driver 13 when it is taken over. However, such a solution would require appropriate control, which would entail greater effort than the solution shown.
  • a holding member 27 can be provided in the area of the conveying member 9, which is inserted periodically into the shingled stream in order to hold a given number of printed products 1 until they are taken along by a driver 13 .
  • This retaining member 27 can be designed, for example, as a lever 28 arranged above the printed product stream S, which can be raised and lowered by means of a control mechanism 29 and, in the position retracted into the scale stream S, retains the printed products 1 at their leading edge 1a. As soon as the held printed products are gripped by a driver 13, the lever 28 must be raised and the printed products released. This solution has over the in the
  • Fig. 1 shown and described above, the advantage that not only one printed product 1, but two and more printed products can be held simultaneously, which allows each gripper 19 of the conveyor 17 more than two printed products feed.
  • each driver 13 is provided with at least one freely rotatable support roller 30, which serves as a support for the printed products 1.
  • the distance between the drivers 13 is also greater than the distance between the trailing edges 1b of print products 1 lying one on top of the other. Thanks to the freely rotatable support rollers 30, the print products 1 which are not caught by a driver 13 at the beginning of the conveyor-effective path can slide back against the conveying direction until they move from the next one Carrier 13 can be taken. In this way, it is possible to delay two or more printed products in their forward movement until they are taken away by a driver 13.

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

Abstract

Attached to revolving traction elements are a number of equidistantly arranged entrainment members having impact surfaces at their leading edges. The impact surfaces engage at trailing edges of the printed products arriving in an imbricated product stream. Between the traction elements there is arranged a suction head connected by means of a connection line or conduit with a negative pressure source. The suction head fixedly retains the printed products moving therepast or delays their forward movement until the engaged printed product can be entrained by one of the entrainment members. Due to the holding back of each second printed product each entrainment member infeeds two superimposed printed products to the individual grippers of a transport device. Since each gripper conveys away two printed products the transport device can be driven at a lower velocity that the infeed velocity of the imbricated product stream, which, among other things, affords quieter travel and reduced wear of the transport device.

Description

Die vorliegende Erfindung betrifft eine Vorrichtung zum Zuführen von in einem Schuppenstrom anfallenden flächigen Erzeugnissen, ins besondere Druckprodukten, zu einem Transporteur gemäß Oberbegriff des Anspruches 1.The present invention relates to a device for supplying flat products, in particular printed products, which accumulate in a shingled stream, to a conveyor according to the preamble of claim 1.

Bei einer Zuführvorrichtung dieser Art, wie sie z B aus der DE-A-2822060 bekannt ist, wird jedem Greifer des Transporteurs ein Druckprodukt zugeführt Das bedingt, daß die Fördergeschwindigkeit des Transporteurs der Fördergeschwindigkeit der Zuführvorrichtung, welche ihrerseits der Zuliefergeschwindigkeit des Schuppenstromes angepaßt ist, entsprechen muß Wird nun der Schuppenstrom mit hoher Geschwindigkeit angeliefert, z B. von einer .9otationsdruckmaschine her, so bringt die entsprechend hohe Laufgeschwindigkeit des Transporteurs u. a. einen erhöhten Verschleiß des letzteren mit sich.In a feed device of this type, as is known, for example, from DE-A-2822060, a printed product is fed to each gripper of the transporter. This means that the conveying speed of the transporter corresponds to the conveying speed of the feed device, which in turn is adapted to the delivery speed of the shingled stream. If the stream of shingles is now delivered at high speed, eg from a .9otation printing machine, the correspondingly high running speed of the transporter may result in a. increased wear of the latter.

Der vorliegenden Erfindung liegt nun die Aufgabe zugrunde, eine Herabsetzung der Laufgeschwindigkeit des Transporteurs zu ermöglichen, ohne daß gleichzeitig die Fördergeschwindigkeit der Zuführvorrichtung entsprechend vermindert werden muß.The present invention is based on the object of making it possible to reduce the running speed of the conveyor without simultaneously reducing the conveying speed of the feed device accordingly.

Diese Aufgabe wird gemäß kennzeichnendem Teil des Anspruches 1 gelöst.This object is achieved in accordance with the characterizing part of claim 1.

Durch das Zurückhalten bzw. Verzögern gewisser Erzeugnisse, z. B. jedes zweiten Erzeugnisses, werden pro Mitnehmer mehrere Erzeugnisse, z. B. zwei Erzeugnisse, übereinanderliegend zum Transporteur gefördert. Diese vom selben Mitnehmer zugeführten Erzeugnisse werden zusammen von einem Greiforgan des Transporteurs erfaßt und wegbefördert. Das erlaubt es, den Transporteur weniger schnell laufen zu lassen und trotzdem alle von der Zuführvorrichtung zugeführten Erzeugnisse wegzufördern. Die Förderleistung des Transporteurs entspricht somit nach wie vor der Förderleistung der Zuführvorrichtung. Die Her absetzung der Laufgeschwindigkeit des Transporteurs bringt einen ruhigeren Lauf und eine Verminderung des Verschleißes mit sich. Den dem Transporteur nachgeschalteten Verarbeitungseinrichtungen, z. B. Stapeleinrichtungen, steht zudem bei gleicher Verarbeitungsleistung mehr Zeit zur Verarbeitung der einzelnen durch jedes Greiforgan freigegebenen Pakete von Erzeugnissen zur Verfügung.By holding back or delaying certain products, e.g. B. every second product, several products per carrier, e.g. B. two products, superimposed to the carrier. These products, which are fed by the same driver, are gripped together by a gripper of the transporter and transported away. This allows the feed dog to run less quickly and still move all the products fed by the feed device away. The conveying capacity of the transporter thus still corresponds to the conveying capacity of the feed device. The reduction in the running speed of the feed dog brings with it a smoother running and a reduction in wear. The processing equipment downstream of the transporter, e.g. B. stacking devices, more time is available with the same processing power for processing the individual packages released by each gripping device of products.

Im folgenden werden anhand der Zeichnung Ausführungsbeispiele des Erfindungsgegenstandes näher erläutert.Exemplary embodiments of the subject matter of the invention are explained in more detail below with reference to the drawing.

Es zeigt rein schematisch

  • Fig 1 in Seitenansicht eine erste Ausführungsform einer Fördervorrichtung zum Wegfördern von in einem Schuppenstrom anfallenden Druckprodukten,
  • Fig. 2 in vergrößertem Maßstab und im Schnitt das Teil der Vorrichtung gemäß Fig. 1 bildende Halteorgan,
  • Fig. 3 in einer der Fig. 1 entsprechenden Darstellung eine zweite Ausführungsform einer Fördervorrichtung zum Wegfördern von in einem Schuppenstrom anfallenden Druckprodukten, und
  • Fig. 4 in Seitenansicht einen Teil des Förderorganes einer dritten Ausführungsform einer Fördervorrichtung zum Wegfördern von in einem Schuppenstrom anfallenden Druckpro Jukten.
It shows purely schematically
  • 1 shows a side view of a first embodiment of a conveying device for conveying away printed products occurring in a shingled stream,
  • 2 on an enlarged scale and in section forming part of the device of FIG. 1 holding member,
  • 3 in a representation corresponding to FIG. 1, a second embodiment of a conveying device for conveying away printed products occurring in a shingled stream, and
  • Fig. 4 in side view of a part of the conveying member of a third embodiment of a conveying device for conveying away pressure in a stream of pressure per yukten.

Die in einem Schuppenstrom S anfallenden Druckprodukte 1 werden mittels eines nur teilweise dargestellten Zubringerbandes 2 zugeführt. Die einzelnen Druckprodukte 1 liegen im Schuppenstrom S dachziegelartig übereinander, wobei jedes Druckprodukt 1 jeweils auf dem vorlaufenden Druckprodukt aufliegt. Die vorlaufende Kante 1a jedes Druckproduktes 1, die im vorliegenden Ausführungsbeispiel die Falzkante (Bund) ist, liegt somit frei, während die Nachlaufkante 1 jedes Druckproduktes 1 vom nachfolgenden Druckprodukt überdeckt ist Das Zubringerband 2 ist über eine Umlenkrolle 3 geführt, die mittels einer Antriebskette 4 von der den Schuppenstrom S erzeugenden Quelle, z. B. einer Rotationsdruckmaschine, angetrieben wird. Dem Zubringerband 2 ist ein endloses Zwischenband 5 nachgeschaltet, das über Umlenkrollen 6 und 7 geführt ist. Der förderwirksame Trum dieses Zwischenbandes 5 verläuft in ansteigender Richtung. Der Antrieb der Umlenkrolle 6 erfolgt mittels einer Antriebskette 8 von der Umlenkrolle 3 her. Der von den Bändern 2 und 5 in Richtung des Pfeiles A geförderte Schuppenstrom S wird im Anschluß an das Zwischenband 5 von einem Förderorgan 9 übernommen. Letzteres weist zwei in einem Abstand angeordnete, endlose Zugorgane 10 auf, von denen in den Figuren nur eines sichtbar ist und die über zwei Umlenkrollen 11 und 12 geführt sind. An diesen Zugorganen 10 sind in regelmäßigen Abständen Mitnehmer 13 angeordnet, welche an ihrer vorlaufenden Kante mit einer Anschlagfläche 13a zur Mitnahme der Druckprodukte 1 versehen sind. Der Abstand b zwischen den Anschlagflächen 13a benachbarter Mitnehmer 13 ist größer als der Abstand a zwischen den Nachlaufkanten 1b übereinanderliegender Druckprodukte 1. In der Mitte zwischen den beiden Zugorganen 10 ist ein stationäres Halteorgan 14, z. B. ein Saugkopf, angeordnet, das über eine Verbindungsleitung 15 dauernd mit einer Unterdruckquelle (60) in Verbindung steht. In Fig. 2 ist dieses Halteorgan 14 in vergrößertem Maßstab dargestellt. Im Endbereich der förderwirksamen Strecke der Mitnehmer 13 ist eine Führungsrampe 16 angeordnet, die eine einwandfreie Übergabe der Druckprodukte 1 an einen Transporteur 17 gewährleistet. Dieser Transporteur 17, von dem nur ein Teil dargestellt ist, entspricht in seinem Aufbau und seiner Wirkungsweise dem in der DE-A-2 519 561 bzw. der entsprechenden US-A-3 955 667 geoffenbarten Transporteur, so daß sich eine ausführliche Beschreibung erübrigt. An einem nicht dargestellten Zugorgan, das um das Umlenkrad 18 geführt ist, sind in Förderrichtung B hintereinander angeordnete Greifer 19 befestigt. Jeder Greifer 19 weist eine obere, feststehende Klemmbacke 20 und eine untere, bewegliche Klemmbacke 21 auf. In Schließstellung der unteren Klemmbacke 21 werden die erfaßten Druckprodukte 1 zwischen den beiden Klemmbacken 20 und 21 festgehalten. Mittels eines Verriegelungsorganes 22 wird die bewegliche Klemmbacke 21 in ihrer Klemmstellung gehalten. Der Transporteur 17 wird von einem Antriebsmotor 23 angetrieben, dessen Antriebsgeschwindigkeit von einer Antriebssteuerung 24 gesteuert wird Dieser Antriebssteuerung 24 werden die Signale eines Drehzahlgebers 25, der mit der Umlenkrolle 3 gekoppelt ist,und eines Signalgebers 26 zugeführt, der auf die vorbeilaufenden Nachlaufkanten 1 der Druckprodukte 1 anspricht Die Antriebssteuerung 24 verarbeitet die empfangenen Signale und beeinflußt auf nicht näher dargestellte, an sich bekannte Weise den Antriebsmotor 23, um die Laufgeschwindigkeit des Transporteurs 17 an die Geschwindigkeit des anfallenden Druckproduktestromes S anzupassen. Vom Transporteur 17 her wird das Förderorgan 9 angetrieben und zwar mit einer Geschwindigkeit, die gegenüber der Zuführgeschwindigkeit des Schuppenstromes S größer ist.The print products 1 occurring in a shingled stream S are fed in by means of a feed belt 2 which is only partially shown. The individual printed products 1 lie on top of one another in the shingled stream S in the manner of roof tiles, each printed product 1 in each case resting on the leading printed product. The leading edge 1a of each printed product 1, which in the present exemplary embodiment is the folded edge (collar), is thus exposed, while the trailing edge 1 of each printed product 1 is covered by the subsequent printed product. The feed belt 2 is guided over a deflection roller 3, which is driven by a drive chain 4 from the source generating the scale stream S, e.g. B. a rotary printing press is driven. The feeder belt 2 is followed by an endless intermediate belt 5, which is guided over deflection rollers 6 and 7. The conveyor-effective strand of this intermediate belt 5 runs in an increasing direction. The deflection roller 6 is driven by means of a drive chain 8 from the deflection roller 3. The shingled stream S conveyed by the belts 2 and 5 in the direction of arrow A is taken over by a conveying member 9 following the intermediate belt 5. The latter has two endless traction elements 10 arranged at a distance, only one of which is visible in the figures and which are guided over two deflection rollers 11 and 12. At these traction elements 10 drivers 13 are arranged at regular intervals, which are provided on their leading edge with a stop surface 13a for taking the printed products 1 with them. The distance b between the abutment surfaces 13a of adjacent drivers 13 is greater than the distance a between the trailing edges 1b of printed products 1 lying one above the other. B. a suction head, which is connected via a connecting line 15 with a vacuum source (60). 2, this holding member 14 is shown on an enlarged scale. A guide ramp 16 is arranged in the end region of the conveyor-effective section of the carriers 13, which ensures a perfect transfer of the printed products 1 to a conveyor 17. This conveyor 17, of which only a part is shown, corresponds in structure and mode of operation to that in DE-A-2 519 561 or the corresponding US-A-3 955 667 geof open carrier, so that a detailed description is unnecessary. On a pulling element, not shown, which is guided around the deflection wheel 18, grippers 19 arranged one behind the other in the conveying direction B are fastened. Each gripper 19 has an upper, fixed jaw 20 and a lower, movable jaw 21. In the closed position of the lower jaw 21, the detected printed products 1 are held between the two jaws 20 and 21. The movable clamping jaw 21 is held in its clamping position by means of a locking member 22. The feed dog 17 is driven by a drive motor 23, the drive speed of which is controlled by a drive controller 24. This drive controller 24 is supplied with the signals from a speed sensor 25, which is coupled to the deflection roller 3, and a signal transmitter 26, which is applied to the trailing trailing edges 1 of the printed products The drive controller 24 processes the received signals and influences the drive motor 23 in a manner known per se, which is not shown in detail, in order to adapt the running speed of the feed dog 17 to the speed of the printing product flow S occurring. The conveyor element 9 is driven by the conveyor 17, namely at a speed which is greater than the feed speed of the shingled stream S.

Die beschriebene Vorrichtung arbeitet wie folgt Der von den Bändern 2 und 5 zugeführte Schuppenstrom S wird von den Mitnehmern 13 des Förderorganes 3 unterfahren. Diese Mitnehmer 13 greifen mit ihrer Anschlagsfläche 13a an der Nachlaufkante 1b der Druckprodukte 1 an und fördern die auf diese Weise erfaßten Druckprodukte zum Transporteur 17 hin. Da wie bereits erwähnt der Abstand b zwischen benachbarten Mitnehmern 13 größer ist als der Abstand a zwischen den Nachlaufkanten 1 b aufeinanderliegender Produkte 1 (b>2a), ist nicht jedem Druckprodukt 1, sondern nur jedem zweiten Druckprodukt ein Mitnehmer 13 zugeordnet. Zu Beginn der förderwirksamen Strecke der Mitnehmer 13 wird somit nicht jedes Druckprodukt, sondern jedes zweite Druckprodukt, von einem Mitnehmer 13 erfaßt. Sobald diejenigen Druckprodukte 1, die nicht an der Anschlagsfläche 13a eines Mitnehmers 13 anliegen und im Schuppenverband lose mitgenommen werden, in den Bereich des Halteorganes 14 gelangen, werden sie durch die Saugwirkung dieses Halteorganes 14 festgehalten oder zumindest in ihrer Weiterbewegung verzögert, bis der nächste Mitnehmer 13 auf die Nachlaufkante 1 b dieses vom Halteorgan 14 festgehaltenen Druckprodukte aufläuft und auch dieses Druckprodukt mitnimmt. Die vom Halteorgan 14 auf das Druckprodukt ausgeübte Festhaltekraft ist geringer als die von den Mitnehmern 13 auf die Druckprodukte ausgeübte Vorschubkraft, so daß eine Mitnahme der vom Halteorgan 14 erfaßten Druckprodukte durch die Mitnehmer 13 jederzeit ermöglicht wird, obwohl das Halteorgan 14 dauernd an die Unterdruckquelle angeschlossen ist.The device described works as follows. The shingled stream S fed by the belts 2 and 5 is passed under by the drivers 13 of the conveying element 3. These drivers 13 engage with their abutment surface 13a on the trailing edge 1b of the printed products 1 and convey the printed products detected in this way to the conveyor 17. Since, as already mentioned, the distance b between adjacent drivers 13 is greater than the distance a between the trailing edges 1b of products 1 lying one on top of the other (b> 2a), a driver 13 is not assigned to every printed product 1, but only to every second printed product. At the beginning of the conveyor-effective route of the drivers 13, not every printed product, but every second printed product, is thus gripped by a driver 13. As soon as those printed products 1 that do not rest against the stop surface 13a of a driver 13 and are loosely carried along in the scale structure reach the area of the holding member 14, they are held by the suction effect of this holding member 14 or at least delayed in their further movement until the next driver 13 runs onto the trailing edge 1 b of this printed product held by the holding member 14 and also takes this printed product with it. The holding force exerted by the holding member 14 on the printed product is less than the feed force exerted by the drivers 13 on the printed products, so that the printed products detected by the holding member 14 can be taken along by the drivers 13 at all times, although the holding member 14 is continuously connected to the vacuum source is.

Im Anschluß an das Halteorgan 14 fördert somit jeder Mitnehmer 13 zwei Druckerzeugnisse 1, die aufeinander liegen. Diese beiden aufeinanderliegenden Erzeugnisse werden über die Führungsrampe 16 in den Übernahmebereich der Greifer 19 geschoben. Die im offenen Zustand in diesen Übernahmebereich gelangenden Greifer 19 erfassen auf bekannte Weise die beiden aufeinanderliegenden Druckprodukte 1 an ihrer vorlaufenden Kante 1 und fördern die erfaßten Druckprodukte 1 zu einer nicht dargestellten Verarbeitungsstation. An dieser werden die Druckprodukte 1 abgegeben und können entweder wie zugefördert zu zweien verarbeitet oder wieder zu einem neuen Schuppenstrom auseinandergezogen werden.Following the holding member 14, each driver 13 thus conveys two printed products 1 which lie one on top of the other. These two superimposed products are pushed over the guide ramp 16 into the takeover area of the grippers 19. The grippers 19 reaching this transfer area in the open state grip the two superimposed printed products 1 on their leading edge 1 in a known manner and convey the captured print products 1 to a processing station (not shown). The printed products 1 are delivered to this and can either be processed as two to two or be pulled apart again to form a new scale flow.

Dadurch, daß pro Greifer 19 zwei Exemplare gefördert werden, kann der Transporteur 17 mit einer Fördergeschwindigkeit angetrieben werden, die halb so groß ist wie die Fördergeschwindigkeit der Bänder 2 und 5 des Förderorganes 9. Trotzdem ist der Transporteur 17 in der Lage, alle anfallenden Druckprodukte wegzubefördern. Es ist auch möglich, anstatt das Halteorgan 14 dauernd an die Unterdruckquelle angeschlossen zu halten, dieses Halteorgan 14 periodisch mit der Unterdruckquelle zu verbinden, um das erfaßte Druckprodukt im Zeitpunkt dessen Übernahme durch einen Mitnehmer 13 freizugeben. Eine solche Lösung würde jedoch eine entsprechende Steuerung notwendig machen, was gegenüber der gezeigten Lösung einen größeren Aufwand mit sich brächte.Characterized in that two copies are conveyed per gripper 19, the conveyor 17 can be driven at a conveying speed which is half as large as the conveying speed of the belts 2 and 5 of the conveyor element 9. Nevertheless, the conveyor 17 is able to handle all of the printed products to carry away. It is also possible, instead of keeping the holding member 14 permanently connected to the negative pressure source, to connect this holding member 14 periodically to the negative pressure source in order to release the detected printed product by a driver 13 when it is taken over. However, such a solution would require appropriate control, which would entail greater effort than the solution shown.

Es ist auch möglich, die Druckprodukte 1 anstelle eines Unterdruckes auf mechanische Weise so lange zurückzuhalten, bis sie von einem Mitnehmer 13 erfaßt werden. Zu diesem Zweck kann, wie das in Fig. 3 gezeigt ist, im Bereich des Förderorganes 9 ein Festhalteorgan 27 vorgesehen werden, das periodisch in den Schuppenstrom eingefahren wird, um eine gegebene Anzahl von Druckprodukten 1 bis zu deren gemeinsamen Mitnahme durch einen Mitnehmer 13 festzuhalten. Dieses Festhalteorgan 27 kann beispielsweise als ein oberhalb des Druckproduktestromes S angeordneter Hebel 28 ausgebildet sein, der mittels eines Steuermechanismus 29 gehoben und gesenkt werden kann und in in den Schuppenstrom S eingefahrener Stellung die Druckprodukte 1 an ihrer vorlaufenden Kante 1a zurückhält. Sobald die festgehaltenen Druckprodukte von einem Mitnehmer 13 erfaßt werden, muß der Hebel 28 angehoben und die Druckprodukte freigegeben werden. Diese Lösung hat gegenüber der in derIt is also possible to hold back the printed products 1 instead of a vacuum in a mechanical manner until they are caught by a driver 13. For this purpose, as shown in FIG. 3, a holding member 27 can be provided in the area of the conveying member 9, which is inserted periodically into the shingled stream in order to hold a given number of printed products 1 until they are taken along by a driver 13 . This retaining member 27 can be designed, for example, as a lever 28 arranged above the printed product stream S, which can be raised and lowered by means of a control mechanism 29 and, in the position retracted into the scale stream S, retains the printed products 1 at their leading edge 1a. As soon as the held printed products are gripped by a driver 13, the lever 28 must be raised and the printed products released. This solution has over the in the

Fig. 1 gezeigten und vorstehend beschriebenen Ausführungsform den Vorteil, daß gleichzeitig nicht nur ein Druckprodukt 1, sondern zwei und mehr Druckprodukte festgehalten werden können, was es erlaubt, jedem Greifer 19 des Transporteurs 17 mehr als zwei Druckprodukte zuzuführen.Fig. 1 shown and described above, the advantage that not only one printed product 1, but two and more printed products can be held simultaneously, which allows each gripper 19 of the conveyor 17 more than two printed products feed.

Bei der in Fig.4 nur ausschnittweise dargestellten weiteren Ausführungsform der Zuführvorrichtung werden die Mitnehmer 13 gleich wie in der Fig. 1 gezeigt auf ihrer förderwirksamen Strecke auf einer ansteigenden Bahn geführt. Jeder Mitnehmer 13 ist jedoch mit mindestens einer frei drehbaren Auflagerolle 30 versehen, die als Auflage für die Druckprodukte 1 dient. Der Abstand zwischen den Mitnehmern 13 ist ebenfalls größer als der Abstand zwischen den Nachlaufkanten 1b aufeinanderliegender Druckprodukte 1. Die zu Beginn der förderwirksamen Strecke nicht durch einen Mitnehmer 13 erfaßten Druckprodukte 1 können dank der frei drehbaren Auflagerollen 30 entgegen der Förderrichtung zurückrutschen, bis sie vom nächsten Mitnehmer 13 mitgenommen werden. Auf diese Weise ist es möglich, zwei und mehr Druckprodukte in ihrer Vorwärtsbewegung so lange zu verzögern, bis sie von einem Mitnehmer 13 mitgenommen werden.In the case of the further embodiment of the feed device, which is shown only in part in FIG. However, each driver 13 is provided with at least one freely rotatable support roller 30, which serves as a support for the printed products 1. The distance between the drivers 13 is also greater than the distance between the trailing edges 1b of print products 1 lying one on top of the other. Thanks to the freely rotatable support rollers 30, the print products 1 which are not caught by a driver 13 at the beginning of the conveyor-effective path can slide back against the conveying direction until they move from the next one Carrier 13 can be taken. In this way, it is possible to delay two or more printed products in their forward movement until they are taken away by a driver 13.

Claims (6)

1. An apparatus for infeeding substantially flat products (1), especially printed products, arriving in an imbricated product stream (S), to a transport device (17) having gripper elements (19) serving for engaging the infeed products (1), the gripper elements (19) being arrangend behind one another with respect to the direction of conveying (B), with a conveyor device (9) provided with a number of equidistantly spaced entrainment members il3) engaging trailing edges (1 b) of the products which are revolvingly driven at a greater velocity in relation to the infeed velocity of the imbricated stream (S) and the spacing (b) between two entrainment members (13) being greater than the spacing (a) between the trailing edges (1b) of two printed products (1) which bear upon one another characterized by discrete means (14, 27, 30) engaging the products (1) conveyed by the conveying means (9), reducing the speed of conveying of the momentarily influenced product (1) in relation to the conveying speed of a given number of trailing products until engagement by one of the entrainment members (13).
'2. The apparatus as defined in claim 1, characterised by a holder means (14) connected to a negative pressure source (60) and acting upon at least certain of the products (1), the holder means (14) being arranged at the region of the conveying device (9), preferably below the imbricated product stream (S) and fixedly retaining the engaged products by suction force until entrainment thereof by one of the entrainment members (13) or delaying the forward movement thereof respectively.
3. The apparatus as defined in claim 2, characterised in that the holder means (14) are continuously connected with the negative pressure source and the holding force of the holding means (14) being less than the forward feed force exerted by the entrainment members (13) upon the products (1).
4. The apparatus as defined in claim 1, characterised by a retention element (27) arranged at the region of the conveying device (9) and periodically insertable into the imbricated product stream (S), the retention element fixedly holding a given number of products until their conjoint entrainment by one of the entrainment members (13).
5. The apparatus as defined in claim 4, characterised by the retention element (27) being a lever (28) arranged above the imbricated product stream (S) and coupled with a control mechanism (29), the products (1) striking with their leading edges (1a) against the lever in its inserted position.
6. The apparatus as defined in claim 1, characterised in that the entrainment members (13) are guided along their conveying path at an ascending path of travel and are equipped with at least one freely rotatable support roll (30) serving as support means for the products (1).
EP80100151A 1979-01-29 1980-01-14 Device for feeding a conveyor with flat objects in shingled formation, in particular printed products Expired EP0013920B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT80100151T ATE1544T1 (en) 1979-01-29 1980-01-14 DEVICE FOR SUPPLYING FLAT PRODUCTS, IN PARTICULAR PRINTED PRODUCTS, IN A FLAT STREAM TO A CONVEYOR.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH84379A CH637091A5 (en) 1979-01-29 1979-01-29 DEVICE FOR SUPPLYING FLAT PRODUCTS, INCLUDING PRINTED PRODUCTS, INCLUDING PRESSURE PRODUCTS, TO A TRANSPORTER.
CH843/79 1979-01-29

Publications (2)

Publication Number Publication Date
EP0013920A1 EP0013920A1 (en) 1980-08-06
EP0013920B1 true EP0013920B1 (en) 1982-09-15

Family

ID=4196496

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EP80100151A Expired EP0013920B1 (en) 1979-01-29 1980-01-14 Device for feeding a conveyor with flat objects in shingled formation, in particular printed products

Country Status (5)

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US (1) US4333559A (en)
EP (1) EP0013920B1 (en)
AT (1) ATE1544T1 (en)
CH (1) CH637091A5 (en)
DE (1) DE3060831D1 (en)

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Also Published As

Publication number Publication date
DE3060831D1 (en) 1982-11-04
ATE1544T1 (en) 1982-09-15
CH637091A5 (en) 1983-07-15
EP0013920A1 (en) 1980-08-06
US4333559A (en) 1982-06-08

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