EP0095603B1 - Device for collecting folded printing sheets - Google Patents

Device for collecting folded printing sheets Download PDF

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Publication number
EP0095603B1
EP0095603B1 EP83104528A EP83104528A EP0095603B1 EP 0095603 B1 EP0095603 B1 EP 0095603B1 EP 83104528 A EP83104528 A EP 83104528A EP 83104528 A EP83104528 A EP 83104528A EP 0095603 B1 EP0095603 B1 EP 0095603B1
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EP
European Patent Office
Prior art keywords
collecting conveyor
sheets
printed sheets
outfeed
collecting
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
EP83104528A
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German (de)
French (fr)
Other versions
EP0095603A1 (en
Inventor
Jacques Meier
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Ferag AG
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Ferag AG
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Application filed by Ferag AG filed Critical Ferag AG
Priority to AT83104528T priority Critical patent/ATE18530T1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H5/00—Feeding articles separated from piles; Feeding articles to machines
    • B65H5/30—Opening devices for folded sheets or signatures
    • B65H5/308—Opening devices for folded sheets or signatures the folded sheets or signatures travelling in hanging position
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H39/00—Associating, collating, or gathering articles or webs
    • B65H39/02—Associating,collating or gathering articles from several sources
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H39/00—Associating, collating, or gathering articles or webs
    • B65H39/02—Associating,collating or gathering articles from several sources
    • B65H39/06—Associating,collating or gathering articles from several sources from delivery streams
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H5/00—Feeding articles separated from piles; Feeding articles to machines
    • B65H5/32—Saddle-like members over which partially-unfolded sheets or signatures are fed to signature-gathering, stitching, or like machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/43—Gathering; Associating; Assembling
    • B65H2301/436—Gathering; Associating; Assembling on saddles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/44—Moving, forwarding, guiding material
    • B65H2301/447—Moving, forwarding, guiding material transferring material between transport devices
    • B65H2301/4471—Grippers, e.g. moved in paths enclosing an area
    • B65H2301/44712—Grippers, e.g. moved in paths enclosing an area carried by chains or bands
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/44—Moving, forwarding, guiding material
    • B65H2301/447—Moving, forwarding, guiding material transferring material between transport devices
    • B65H2301/44795—Saddle conveyor with saddle member extending transversally to transport direction

Definitions

  • the invention relates to a device for collecting folded printed sheets according to the preamble of claim 1.
  • a device usually forms part of a saddle stitcher or a three-knife automatic cutter and is connected upstream of the actual stapling or cutting apparatus.
  • the folded printed sheets to be collected are each individually pulled off from a stack, so that the fold forms the trailing edge of the removed printed sheet. This is then fed to the collecting conveyor in such a way that the fold of the printed sheet in the conveying direction of the collecting conveyor either lies on a traveling chain or on a stationary rail, in which case driven drivers move the printed sheet along the rail.
  • the collecting conveyor of the known device thus resembles a running "clothesline" with printed sheets fed at a distance from one another.
  • the feed speed of the collecting conveyor of the known device must be comparatively high, the output of a rotary press should only be approximate to be dealt with.
  • the feed conveyors i. the so-called “feeders” of the known devices have a feed direction that is more or less perpendicular to the feed direction of the collecting conveyor.
  • the printed sheets therefore experience a sudden change in their direction of movement, which has a disastrous effect on the printing sheets, the higher the conveying speed of the feeding conveyors and the feed rate of the collecting conveyor. Therefore, in the known devices of this type, the speeds of the feed conveyor and the collecting conveyor are set to relatively modest upper limits, which are hardly sufficient to cope with the output of a rotary press.
  • the proposed device has the features specified in the characterizing part of patent claim 1.
  • the delivery areas of the feed conveyors run essentially in the same direction as the conveying direction of the collecting conveyor, the transfer of the printed sheets to the latter is not associated with a sudden change in the direction of movement.
  • the receiving saddles of the collecting conveyor are arranged transversely to its conveying direction, that is to say in the manner of ladder rungs, considerably more sets of printed sheets can be collected on a certain conveying path. In other words, this means that the collecting conveyor can have a lower conveying speed while the performance remains the same, or vice versa, and can collect a considerably larger number of sets of printed sheets at the same conveying speed.
  • the collecting conveyor 11 essentially has two parallel, endlessly revolving chains 15, 16. At regular intervals are attached to these chains 15, 16 receiving saddles 17 which extend at right angles to the chains 15, 16 and protrude or project laterally beyond the chain 16. 2 that the receiving saddles 17 have essentially the shape of a prism with a triangular cross section, one of the tips of the triangle pointing away from the chains 15, 16.
  • the feeders 12 and 13 can be designed as described in CH-PS No. 592562 or in the largely identical US-PS No. 3955667, which is why they are shown only very schematically in the drawing and a detailed description should not be necessary at this point .
  • the delivery areas 18, 19 of the feed conveyors 12, 13 run in the same direction as the conveying direction of the collecting conveyor 11, as indicated by the arrows 20.
  • Each of the grippers 21, 22 of the feed conveyors 12, 13 holds a folded printed sheet 23 or 24 at its fold.
  • the printed sheets are not folded in the middle, that is, when viewed from the fold, the part of the printed sheet is longer than the other part overlapped by it. In the graphic arts industry, this is called a “pre-fold” sheet.
  • the feed conveyors 12, 13 convey the printed sheets to be collected in a kind of fanned out scale formation, that is to say in a much denser sequence than if there were a distance between the individual printed sheets in the conveying direction.
  • Each of the delivery areas 18, 19 of the feed conveyors 12, 13 is assigned an opening device 25 or 26, shown schematically in FIG. 2, by means of which printing sheets are opened before being transferred to the collecting conveyor.
  • These opening devices 25, 26 each have a gripper belt 27, 28 which runs at a rotational speed which corresponds to the conveying speed of the feed conveyors 12, 13.
  • the grippers 29, 30 of the gripper belts 27, 28 are arranged at the same distance from one another as the grippers 21 and 22 of the corresponding feed conveyors.
  • the grippers 29, 30 serve to temporarily hold the trailing end edges of the longer parts of the folded printed sheets, while the underlying end edge of the shorter parts of the printed sheets remain free.
  • a small conveyor belt 31, 32 adjoins the gripper belts 27, 28 and rotates at a higher speed than the conveying speed of the feeders 12, 13.
  • these receiving saddles 17 can also be attached to the chains in such a way that their leading and trailing surfaces - as shown - have the same angle to the chains 15, 16, but in such a way that the leading surface of the receiving saddles is steeper than the trailing surface.
  • a stapler and / or a cutting device can be provided at the end of the collecting conveyor, not shown, in order to produce a multipage, stapled and cut publication from the collected printed sheets.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Discharge By Other Means (AREA)
  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
  • Collation Of Sheets And Webs (AREA)

Abstract

Along a collecting conveyor serving to take-up the folded printed sheets in a straddling fashion there is arranged a number of infeed members serving to feed the printed sheets. The infeed members have a delivery region which merges with the collecting conveyor. To increase the efficiency or output of the apparatus without increasing the conveying velocity of the collecting conveyor and to additionally spare the printed sheets from undergoing a sudden change in their direction of movement during the transition from the infeed members to the collecting conveyor, each of the infeed members contain controlled gripper units attached to an endless revolving traction element and serve to grip the fold of the printed sheets. At least the delivery region of the infeed members extends in the same direction as the conveying direction of the collecting conveyor which, in turn contains a number of receiving saddles for receiving the printed sheets, these saddles being arranged at a distance from each other and extending transversely with respect to the conveying direction.

Description

Die Erfindung betrifft eine Einrichtung zum Sammeln von gefalteten Druckbogen nach dem Oberbegriff des Patentanspruches 1. Eine solche Einrichtung bildet in der Regel einen Bestandteil eines Sammelhefters oder eines Dreimesserschneidautomaten und ist dem eigentlichen Heft- bzw. Schneid-Apparat vorgeschaltet.The invention relates to a device for collecting folded printed sheets according to the preamble of claim 1. Such a device usually forms part of a saddle stitcher or a three-knife automatic cutter and is connected upstream of the actual stapling or cutting apparatus.

Bei einer bekannten Einrichtung dieser Art werden die zu sammelnden, gefalteten Druckbogen von jeweils einem Stapel einzeln abgezogen, so dass der Falz die nachlaufende Kante des abgezogenen Druckbogens bildet. Dieser wird dann dem Sammelförderer so zugeführt, dass der Falz des Druckbogens in die Förderrichtung des Sammelförderers entweder auf eine mitlaufende Kette oder auf eine ortsfeste Schiene zu liegen kommt, wobei im letzteren Falle angetriebene Mitnehmer den Druckbogen entlang der Schiene verschieben. Der Sammelförderer der bekannten Einrichtung gleicht somit einer laufenden «Wäscheleine» mit im Abstand voneinander vorgeschobenen Druckbogen.In a known device of this type, the folded printed sheets to be collected are each individually pulled off from a stack, so that the fold forms the trailing edge of the removed printed sheet. This is then fed to the collecting conveyor in such a way that the fold of the printed sheet in the conveying direction of the collecting conveyor either lies on a traveling chain or on a stationary rail, in which case driven drivers move the printed sheet along the rail. The collecting conveyor of the known device thus resembles a running "clothesline" with printed sheets fed at a distance from one another.

Da sich die Sätze der so gesammelten Druckbogen wegen der nachfolgenden Bearbeitung (heften oder beschneiden) nicht überlappen dürfen - wie etwa in einem eine Rotationspresse verlassenen Schuppenstrom - muss die Vorschubgeschwindigkeit des Sammelförderers der bekannten Einrichtung vergleichsweise gross sein, soll der Ausstoss einer Rotationspresse auch nur näherungsweise bewältigt werden. Einer hohen Vorschubgeschwindigkeit des Sammelförderers steht aber der Umstand entgegen, dass die Zuförderer, d.h. die sogenannten «Anleger» der bekannten Einrichtungen eine Zuführrichtung haben, die mehr oder weniger rechtwinklig zur Vorschubrichtung des Sammelförderers steht. Bei der Übergabe vom Zuförderer an den Sammelförderer erfahren die Druckbogen daher eine plötzliche Änderung ihrer Bewegungsrichtung, die sich auf die Druckbogen umso verhängnisvoller auswirkt je höher die Fördergeschwindigkeit der Zuförderer und die Vorschubgeschwindigkeit des Sammelförderers sind. Daher sind bei den bekannten Einrichtungen dieser Art den Geschwindigkeiten der Zuförderer und des Sammelförderers relativ bescheidene obere Grenze gesetzt, die kaum ausreichen, um den Ausstoss einer Rotationspresse zu bewältigen.Since the sets of the printed sheets collected in this way must not overlap due to the subsequent processing (stapling or trimming) - such as in a shingled stream leaving a rotary press - the feed speed of the collecting conveyor of the known device must be comparatively high, the output of a rotary press should only be approximate to be dealt with. However, the fact that the feed conveyors, i. the so-called “feeders” of the known devices have a feed direction that is more or less perpendicular to the feed direction of the collecting conveyor. When transferring from the feed conveyor to the collecting conveyor, the printed sheets therefore experience a sudden change in their direction of movement, which has a disastrous effect on the printing sheets, the higher the conveying speed of the feeding conveyors and the feed rate of the collecting conveyor. Therefore, in the known devices of this type, the speeds of the feed conveyor and the collecting conveyor are set to relatively modest upper limits, which are hardly sufficient to cope with the output of a rotary press.

Dies mag auch der Grund sein, weshalb bei der bekannten Einrichtung die Druckbogen einzeln von einem Stapel abgezogen werden. Es müssen somit die Druckbogen nach Verlassen der Druckpresse zunächst gestapelt werden, um danach von diesen Stapeln einzeln wieder abgezogen zu werden.This may also be the reason why the printed sheets are individually removed from a stack in the known device. The printed sheets must therefore first be stacked after they have left the printing press in order to then be individually pulled off from these stacks.

Es ist daher ein Zweck der Erfindung, eine Einrichtung der im Oberbegriff des Anspruches 1 genannten Art zu schaffen, die diese Nachteile weitgehend vermeidet und die-wenigstens mit einem Teil ihrer Zuförderer und wenn gewünscht-direkt an eine eine Schuppenformation ausstossende Druckpresse angeschlossen werden kann.It is therefore a purpose of the invention to provide a device of the type mentioned in the preamble of claim 1 which largely avoids these disadvantages and which - at least with a part of its feeders and, if desired - can be connected directly to a printing press which ejects a scale formation.

Zu diesem Zweck weist die vorgeschlagene Einrichtung die im Kennzeichen des Patentanspruches 1 angegebenen Merkmale auf.For this purpose, the proposed device has the features specified in the characterizing part of patent claim 1.

Da die Abgabebereiche der Zuförderer im wesentlichen gleichsinnig wie die Förderrichtung des Sammelförderers verlaufen, ist die Übergabe der Druckbogen an den letzteren nicht mit einer plötzlichen Änderung der Bewegungsrichtung verbunden. Da ausserdem die Aufnahmesättel des Sammelförderers quer zu dessen Förderrichtung angeordnet sind, also in der Art von Leitersprossen, können auf einer bestimmten Förderstrecke erheblich mehr Sätze von Druckbogen gesammelt werden. Mit anderen Worten heisst dies, dass der Sammelförderer bei gleichbleibender Leistungsfähigkeit eine geringere Fördergeschwindigkeit haben kann oder umgekehrt, bei gleicher Fördergeschwindigkeit eine erheblich grössere Anzahl Sätze von Druckbogen sammeln kann.Since the delivery areas of the feed conveyors run essentially in the same direction as the conveying direction of the collecting conveyor, the transfer of the printed sheets to the latter is not associated with a sudden change in the direction of movement. In addition, since the receiving saddles of the collecting conveyor are arranged transversely to its conveying direction, that is to say in the manner of ladder rungs, considerably more sets of printed sheets can be collected on a certain conveying path. In other words, this means that the collecting conveyor can have a lower conveying speed while the performance remains the same, or vice versa, and can collect a considerably larger number of sets of printed sheets at the same conveying speed.

Ein Ausführungsbeispiel der vorgeschlagenen Einrichtung ist nachstehend an Hand der Zeichnung näher beschrieben.An embodiment of the proposed device is described below with reference to the drawing.

Es zeigt:

  • Fig. 1 eine schematisierte Draufsicht auf einen Teil einer Sammeleinrichtung, und
  • Fig. 2 eine schematische Seitenansicht auf die Sammeleinrichtung der Fig. 1
It shows:
  • Fig. 1 is a schematic plan view of part of a collection device, and
  • FIG. 2 shows a schematic side view of the collecting device of FIG. 1

Bei der dargestellten Einrichtung 10 erkennt man einen Sammelförderer 11 und zwei Zuförderer 12,13. Dem in Richtung des Pfeiles 14 fördernden Sammelförderer 11 können so viele Zuförderer zugeordnet sein, als der Anzahl Druckbogen entspricht, die die Einrichtung zu sammeln hat. Der Sammelförderer 11 weist im wesentlichen zwei parallele, endlos umlaufende Ketten 15,16 auf. In regelmässigen Abständen sind an diesen Ketten 15,16 Aufnahmesättef 17 befestigt, die sich rechtwinklig zu den Ketten 15, 16 erstrecken und seitlich über die Kette 16 hinaus vorstehen oder vorkragen. Der Fig. 2 ist zu entnehmen, dass die Aufnahmesättel 17 im wesentlichen die Form eines Prismas mit dreieckigem Querschnitt aufweisen, wobei eine der Spitze des Dreiecks von den Ketten 15, 16 weg weist.In the device 10 shown, one can see a collecting conveyor 11 and two feed conveyors 12, 13. As many feeders can be assigned to the collecting conveyor 11 conveying in the direction of the arrow 14 as corresponds to the number of printed sheets that the device has to collect. The collecting conveyor 11 essentially has two parallel, endlessly revolving chains 15, 16. At regular intervals are attached to these chains 15, 16 receiving saddles 17 which extend at right angles to the chains 15, 16 and protrude or project laterally beyond the chain 16. 2 that the receiving saddles 17 have essentially the shape of a prism with a triangular cross section, one of the tips of the triangle pointing away from the chains 15, 16.

Die Zuförderer 12 und 13 können wie in der CH-PS Nr. 592562 oder in der weitgehend inhaltsgleichen US-PS Nr. 3955667 beschrieben ausgebildet sein, weswegen sie in der Zeichnung nur sehr schematisch eingezeichnet sind und sich an dieser Stelle eine nähere Beschreibung erübrigen dürfte. Zu beachten ist hingegen, dass die Abgabebereiche 18, 19 der Zuförderer 12, 13 gleichsinnig zur Förderrichtung des Sammelförderers 11 verlaufen, wie mit den Pfeilen 20 angedeutet.The feeders 12 and 13 can be designed as described in CH-PS No. 592562 or in the largely identical US-PS No. 3955667, which is why they are shown only very schematically in the drawing and a detailed description should not be necessary at this point . However, it should be noted that the delivery areas 18, 19 of the feed conveyors 12, 13 run in the same direction as the conveying direction of the collecting conveyor 11, as indicated by the arrows 20.

Jeder der Greifer 21, 22 der Zuförderer 12, 13 hält einen gefalteten Druckbogen 23 bzw. 24 an seinem Falz fest. In diesem Beispiel sind die Druckbogen nicht mittig gefalzt, d.h. vom Falz aus gesehen ist der Teil des Druckbogens länger als der andere, von diesem überlappte Teil. Man nennt dies im graphischen Gewerbe ein Druckbogen mit «Vorfalz». Wie aus den Fig. 1 und 2 ersichtlich, fördern die Zuförderer 12, 13 die zu sammelnden Druckbogen in einer Art aufgefächerter Schuppenformation, also in wesentlich dichterer Folge als wenn zwischen den einzelnen Druckbogen in Förderrichtung gesehen ein Abstand vorhanden wäre.Each of the grippers 21, 22 of the feed conveyors 12, 13 holds a folded printed sheet 23 or 24 at its fold. In this example, the printed sheets are not folded in the middle, that is, when viewed from the fold, the part of the printed sheet is longer than the other part overlapped by it. In the graphic arts industry, this is called a “pre-fold” sheet. As can be seen from FIGS. 1 and 2, the feed conveyors 12, 13 convey the printed sheets to be collected in a kind of fanned out scale formation, that is to say in a much denser sequence than if there were a distance between the individual printed sheets in the conveying direction.

Jedem der Abgabebereiche 18, 19 der Zuförderer 12,13 ist eine in Fig. 2 schematisch dargestellte Öffnungsvorrichtung 25 bzw. 26 zugeordnet, mit welcher Druckbogen vor der Übergabe an den Sammelförderer geöffnet werden.Each of the delivery areas 18, 19 of the feed conveyors 12, 13 is assigned an opening device 25 or 26, shown schematically in FIG. 2, by means of which printing sheets are opened before being transferred to the collecting conveyor.

Diese Öffnungsvorrichtungen 25, 26 weisen je ein Greiferband 27, 28 auf, welches mit einer Umlaufgeschwindigkeit läuft, die der Fördergeschwindigkeit der Zuförderer 12, 13 entspricht. Die Greifer 29, 30 der Greiferbänder 27, 28 sind in gleichen Abständen voneinander angeordnet, wie die Greifer 21 bzw. 22 der entsprechenden Zuförderer. Die Greifer 29, 30 dienen dazu, die nachlaufenden Endkanten der längeren Teile der gefalzten Druckbogen zeitweilig festzuhalten, während die darunter liegende Endkante der kürzeren Teile der Druckbogen frei bleiben. An die Greiferbänder 27,28 schliessen sich je ein kleines Förderband 31, 32 an, das mit einer höheren Geschwindigkeit umläuft als die Fördergeschwindigkeit der Zuförderer 12,13. Sobald die Endkante des kürzeren Teils der Druckbogen 23, 24 auf diese Förderbänder 31, 32 gerät, wird diese freie Endkante schneller vorgeschoben, was zur Folge hat, dass der kürzere Teil der Druckbogen nach unten ausgebaucht wird, worauf diese freie Endkante auf die eine Seite eines herankommenden Aufnahmesattels 17 fällt. Dies ist in Fig. 2 links mit der gestrichelten Linie 33 für den Aufnahmesattel 17' verdeutlicht. Gibt dann der Greifer 29,30 am Ende des Greiferbandes 27 bzw. 28 die Endkante des längeren Teils des Druckbogens 23 bzw. 24 frei, ist inzwischen der entsprechende Aufnahmesattel 17' weitergewandert, so dass die Endkante dieses längeren Teils des Druckbogens auf die andere Seite des Aufnahmesattels fällt. Nun können die Greifer 21 bzw. 22 der Zuförderer die gefalteten Druckbogen frei geben, so dass dies unter der Wirkung des Eigengewichtes rittlings auf den entsprechenden Aufnahmesattet 17 zu liegen kommen.These opening devices 25, 26 each have a gripper belt 27, 28 which runs at a rotational speed which corresponds to the conveying speed of the feed conveyors 12, 13. The grippers 29, 30 of the gripper belts 27, 28 are arranged at the same distance from one another as the grippers 21 and 22 of the corresponding feed conveyors. The grippers 29, 30 serve to temporarily hold the trailing end edges of the longer parts of the folded printed sheets, while the underlying end edge of the shorter parts of the printed sheets remain free. A small conveyor belt 31, 32 adjoins the gripper belts 27, 28 and rotates at a higher speed than the conveying speed of the feeders 12, 13. As soon as the end edge of the shorter part of the printed sheets 23, 24 gets onto these conveyor belts 31, 32, this free end edge is advanced faster, with the result that the shorter part of the printed sheets is bulged downwards, and this free end edge is then on one side an approaching saddle 17 falls. This is illustrated on the left in FIG. 2 by the dashed line 33 for the receiving saddle 17 '. If the gripper 29, 30 at the end of the gripper band 27 or 28 releases the end edge of the longer part of the printing sheet 23 or 24, the corresponding receiving saddle 17 'has now moved on, so that the end edge of this longer part of the printing sheet moves to the other side of the saddle falls. Now the grippers 21 and 22 of the feeders can release the folded printed sheets, so that under the effect of their own weight they come astride the corresponding receiving saddles 17.

Um den Einfluss des «Fahrtwindes» auf die Druckbogen möglichst zu verringern, ist die Stelle, an der die Greifer 21 bzw. 22 der Zuförderer 12 bzw. 13 geöffnet werden, möglichst nahe an der Umlaufbahn der Aufnahmesättel 17 angeordnet. Andererseits können diese Aufnahmesättel 17 auch derart an den Ketten befestigt sein, dass ihre vorlaufenden und nachlaufenden Flächen - wie dargestellt - den gleichen Winkel zu den Ketten 15,16 aufweisen, sondern so, dass die vorlaufende Fläche der Aufnahmesättel steiler ist als die nachlaufende Fläche.In order to reduce the influence of the “driving wind” on the printing sheets as much as possible, the point at which the grippers 21 and 22 of the feed conveyors 12 and 13 are opened is arranged as close as possible to the orbit of the receiving saddles 17. On the other hand, these receiving saddles 17 can also be attached to the chains in such a way that their leading and trailing surfaces - as shown - have the same angle to the chains 15, 16, but in such a way that the leading surface of the receiving saddles is steeper than the trailing surface.

Wie einleitend dargetan, kann am nicht dargestellten Ende des Sammelförderers ein Heftapparat und/oderein Schneidapparatvorgesehen sein, um aus den gesammelten Druckbogen eine mehrseitige, geheftete und geschnittene Druckschrift zu erzeugen.As stated in the introduction, a stapler and / or a cutting device can be provided at the end of the collecting conveyor, not shown, in order to produce a multipage, stapled and cut publication from the collected printed sheets.

Claims (7)

1. Device for collecting folded printed sheets, having an endless revolving collecting conveyor (11) adapted to receive the sheets in straddling configuration, a number of feeding conveyors (12, 13) for printed sheets arranged along the collecting conveyor, the feeding conveyors ending with their outfeed range (18,19) on the collecting conveyor (11), characterized in that the feeding conveyors (12, 13) comprise mutually spaced controlled grippers (21, 22) secured to an endless revolving traction element, the grippers (12,13) being adapted to grip the sheets at their fold, at least the outfeed ranges (18, 19) of the feeding conveyors (12, 13) extending substantially in the same direction as the conveying direction of the collecting conveyor (11) which in turn is provided with a number of spacedly arranged sheet receiving saddles (17) extending transversely to their conveying direction (14) of the collecting conveyor.
2- Deviceaccording to Claim 1, characterized in that each outfeed range (18, 1'9) of the feeding conveyors (12, 13) has associated thereto an opening device (25, 26) for the sheets.
3. Device according to Claim 2, in which the active run of the feeding conveyors (12, 13) is the lower run and in which the mouth of the grippers (21, 22) isrearwardly open when seen in the conveying direction, characterized in that the opening device (25, 26) associated to the outfeed range (18, 19) comprises a conveyor belt (31, 32) running in parallel to the outfeed range (18,19) but at higher revolving speed, for separating the one trailing part of the sheets (23, 24) from the other part thereof.
4. Device according to Claim 3 for collecting non-centrally folded sheets in which the longer portion of the sheet as seen from the fold overlaps the other portion of the sheet, characterized in that the conveyor belt (31, 32) with the higher revolving speed is preceded by a revolving gripping- band (27, 28) running parallel to and at the same speed as the outfeed range (18,19), the controlled grippers (29, 30) of the gripper-band being disposed at the same distance from each other as the grippers (21, 22) of the feeding conveyors (12, 13), and being adapted to grip the trailing edge of the longer portion of the sheet until the conveyor belt (31, 32) with the higher revolving speed engages and transports the trailing edge of the other portion of the sheet.
5. Device according to one of Claims 1 to 4, characterized in that the sheet receiving saddles (17) possess a prismatic shape with a triangular cross-section, the tip of which is directed towards the outfeed range (18, 19) of the feeding conveyors (12, 13).
6. Device according to one of Claims 1 to 5, characterized in that the sheet receiving saddles (17) are secured to two endless chains (15, 16) revolving in parallel to each other.
7. Device according to Claim 6, characterized in that the receiving saddles extend laterally beyond one (16) of the chains.
EP83104528A 1982-06-01 1983-05-07 Device for collecting folded printing sheets Expired EP0095603B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83104528T ATE18530T1 (en) 1982-06-01 1983-05-07 DEVICE FOR COLLECTING FOLDED SHEET.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH335082 1982-06-01
CH3350/82 1982-06-01

Publications (2)

Publication Number Publication Date
EP0095603A1 EP0095603A1 (en) 1983-12-07
EP0095603B1 true EP0095603B1 (en) 1986-03-12

Family

ID=4254072

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83104528A Expired EP0095603B1 (en) 1982-06-01 1983-05-07 Device for collecting folded printing sheets

Country Status (6)

Country Link
US (1) US4489930A (en)
EP (1) EP0095603B1 (en)
JP (1) JPH0822709B2 (en)
AT (1) ATE18530T1 (en)
CA (1) CA1193624A (en)
DE (1) DE3362515D1 (en)

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Also Published As

Publication number Publication date
US4489930A (en) 1984-12-25
JPH0822709B2 (en) 1996-03-06
JPS58224963A (en) 1983-12-27
ATE18530T1 (en) 1986-03-15
DE3362515D1 (en) 1986-04-17
EP0095603A1 (en) 1983-12-07
CA1193624A (en) 1985-09-17

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