EP0407763B1 - Device for removing printed products from a rotating driven star wheel of a printing machine - Google Patents

Device for removing printed products from a rotating driven star wheel of a printing machine Download PDF

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Publication number
EP0407763B1
EP0407763B1 EP90111429A EP90111429A EP0407763B1 EP 0407763 B1 EP0407763 B1 EP 0407763B1 EP 90111429 A EP90111429 A EP 90111429A EP 90111429 A EP90111429 A EP 90111429A EP 0407763 B1 EP0407763 B1 EP 0407763B1
Authority
EP
European Patent Office
Prior art keywords
carriers
conveying
printed products
holding device
printing products
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP90111429A
Other languages
German (de)
French (fr)
Other versions
EP0407763A1 (en
Inventor
Erwin Müller
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
Publication of EP0407763A1 publication Critical patent/EP0407763A1/en
Application granted granted Critical
Publication of EP0407763B1 publication Critical patent/EP0407763B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
    • B65H29/66—Advancing articles in overlapping streams
    • B65H29/6609—Advancing articles in overlapping streams forming an overlapping stream
    • 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
    • B65H29/38—Delivering or advancing articles from machines; Advancing articles to or into piles by movable piling or advancing arms, frames, plates, or like members with which the articles are maintained in face contact
    • B65H29/40—Members rotated about an axis perpendicular to direction of article movement, e.g. star-wheels formed by S-shaped members
    • 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
    • B65H2301/444—Stream of articles in shingled formation, overlapping stream
    • B65H2301/4447—Stream of articles in shingled formation, overlapping stream multiple streams
    • B65H2301/44472—Stream of articles in shingled formation, overlapping stream multiple streams superposed
    • 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
    • B65H2301/4473—Belts, endless moving elements on which the material is in surface contact
    • B65H2301/44732—Belts, endless moving elements on which the material is in surface contact transporting articles in overlapping stream
    • 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
    • B65H2301/44765—Rotary transport devices with compartments

Definitions

  • the present invention relates to a device for taking over, in particular, folded printed products from a rotatingly driven paddle wheel of a printing machine according to the preamble of claim 1.
  • Such a device is known from EP-A 0 179 992.
  • a paddle wheel signature sheets are stacked on top of one another on a delivery conveyor.
  • the delivery conveyor has a belt with transport fingers arranged at a distance one behind the other, the synchronization of the paddle wheel and belt being set such that a transport finger transports a stack away when a predetermined number of signature sheets have been placed on top of one another and the first signature sheet of the following stack is still in the Is floating between the paddle wheel and the drop point.
  • a holding device for this signature sheet is provided at the storage location.
  • a scale formation is formed from the stacks on the delivery conveyor.
  • the synchronization of the delivery conveyor with the paddle wheel must be changed.
  • EP-A 0 265 735 or the corresponding US Pat. No. 4,886,260 and EP-A 0 312 749 or the corresponding US Pat. No. 4,886,264 devices for taking over folded printed products from a rotatingly driven paddle wheel of a printing machine are known from which the printed products are placed on a delivery conveyor in a scale formation, in which each printed product rests in the manner of a roof tile on the preceding one.
  • the delivery conveyors have a controllable gripper or cam arranged on a revolving drive element at a distance one behind the other, which can be brought into action on the printed products in the region of the trailing edges, for conveying the printed products away by product.
  • the cams are pivotally mounted on the traction element and are pivoted into the area of the printed products by means of a fixed link in the area of the conveyor section of the delivery conveyor which is effective for conveying.
  • At least every second driver of a delivery conveyor can be switched off from the area affected by the printed products.
  • each printed product is grasped at its trailing edge and conveyed away in a roof tile-like manner on the preceding printed product.
  • every second driver is removed from the area of action on the printed products, two printed products stored one on top of the other are detected by each active conveyor, these two superimposed printed products each lying on the preceding pair of printed products in the manner of a roof tile. Neither the synchronization between the paddle wheel and the delivery conveyor nor the speed of the drivers can be changed.
  • two drivers arranged one behind the other can be switched off from the area of action on the printed products and every third driver has a promotional effect, three printed products placed one on top of the other are conveyed away by the latter.
  • a particularly preferred embodiment of the device according to the invention by means of which an extremely precise formation of dandruff is possible, is specified in claim 7.
  • the trailing edges of the printed products are guided by driving elements of a guide device to the depositing point and held there by the driving elements until the driving elements have passed the support point.
  • the device shown in FIGS. 1 to 3 has a paddle wheel arrangement of a printing machine with four paddle wheels 10 arranged side by side and driven in the direction of arrow A, only one of which is visible in FIGS. 1 and 2.
  • Each paddle wheel 10 has blades 12 arranged in a star shape, which delimit pockets 14 which are closed at their inner end by means of a base 16.
  • Folded printed products 18, such as newspapers, magazines or parts thereof, are shot into the pockets 14 in a known manner, not shown, with their fold 20 ahead.
  • An ejection member 22 is provided between each of the paddle wheels 10 arranged on one side.
  • the printed products 18 come to rest with their leading fold 20 on the ejection member 22, as a result of which the printed products 18 are ejected from the pockets 14 and at a depositing location designated 24 on a delivery conveyor 26 arranged below the paddle wheels 10 be filed.
  • the delivery conveyor 26 has, below a two-part delivery plate 28, the parts 28 'of which are laterally spaced apart (FIG. 3), a cam conveyor 30 with two chains 34 guided around chain wheels 32.
  • the corresponding sprockets 32 are mounted on common shafts 35, 35 '.
  • the chains 34 are driven in rotation in synchronism with each other in the conveying direction F and have cams 36, 36 ′ arranged one behind the other at a fixed distance.
  • the two chains 34 which run parallel to one another, are spaced apart from one another in a direction perpendicular to the conveying direction F in such a way that the cams 36, 36 'in question pass between them adjacent to the extension plate parts 28'.
  • the cams with solid lines and with 36 are arranged directly to the side of the chain 34, while the cams provided therebetween, shown in dash-dot lines and labeled 36 ', are further spaced from the chain 34, to the side of the cams 36, on the chain 34 are stored (see in particular Figure 3).
  • the cams 36, 36 ' are constructed identically and are pivotably mounted on the chain 34 by means of a bolt 38 each.
  • Each cam 36, 36 ' has, seen in the conveying direction F, following the pin 38, an elongated hole 40 which is concentric with the pin 38 and through which a limiting pin 42 also fastened to the chain 34 runs.
  • the limiting pin 42 limits the pivoting movement of the cams 36, 36 '.
  • a fixed swivel link 44 is assigned to the cams 36 of each chain 34 and, viewed in the conveying direction F, extends in the region of the chain wheel 32 upstream of the deposit point 24, starting in front of the other chain wheel 72.
  • the cams 36 are pivoted counterclockwise into their driving position, designated 46, in which they protrude in the region of the delivery plate 28 with their driving lugs 48.
  • the cams 36 pivot clockwise by their own weight or possibly under the force of a spring from the driving position 46 into a rest position 50, in which the free ends of the driving lugs 48 are arranged below the surface of the extension plate 28.
  • the rest position 50 is shown using the example of a cam 36 '.
  • the driving lugs 48 pivot from the area of action onto the trailing edges 52 of the printed products 18 deposited on the delivery plate 28 and conveyed away by means of the cams 36, without the fold Damage 20 opposite open trailing edge 52. It should be noted here that the cams 36 are pivoted into their rest position 50 before the cams 36 run onto the circumference of the chain wheel 32.
  • a control link 54 of similar design to the pivot link 44 is assigned to the cams 36 '. This is indicated in FIGS. 1 and 2 only by a dash-dot line over a region of its length.
  • the control link 54 is by means of a control device 55 shown only schematically in FIG. 1 from its rest position shown in the figures in FIG a pivot position in which it is at the level of the pivot link 44 and can be brought back again. If the control link 54 is in its rest position, the cams 36 'remain in the rest position 50 in the region of the control link 54, while when the control link 54 is raised in the pivoted position, they pivot into the driving position 46, in which the driving lugs 48 of the cams 36' pass over pick out the extension plate 28. When the control link 54 is in the rest position, only the cams 36 are thus active in conveyance, while when the control link 54 is in the pivoting position, both the cams 36 and the cams 36 ′ are active in delivery.
  • a holding device designated 56 is provided at the storage location 24.
  • This has a perforated plate 58, aligned with the delivery plate 28, arranged between the chains 34, the holes 60 of which open into a channel 62 which is connected via a line 64 to a vacuum source, not shown.
  • the flow of the air sucked in by the vacuum source is indicated by arrows.
  • the printed product 18 lying directly on the perforated plate 58 is held in the area adjacent to the trailing edge 52 as a result of the negative pressure by the holding device 56.
  • a guide element 66 which has in its upper end region an inlet curve 66 'directed away from the paddle wheel 10 and whose lower end region crosses the conveying plane 68 defined by the delivery plate 28.
  • the guide member 66 is not shown in FIG. 3 for the sake of clarity.
  • An alignment and pressing arrangement 70 is provided on the side of the guide member 66 facing away from the impeller 10. This has an endless chain 74 guided around two further sprockets 72, to which pushers 76 are attached in pairs at certain intervals.
  • the lower sprocket 72 is mounted on the same shaft 35 as the sprocket 32 of the cam conveyor 30 located upstream of the depositing point 24 in the direction of conveyance F.
  • the active run 74 'of this endless chain 74 runs parallel to the guide member 66 and crosses the conveying plane 68 adjacent to the holding device 56.
  • the pushers 76 are pivotably mounted on the endless chain 74 and, in the rest position shown in the figures, are approximately at right angles to the endless chain 74 thereof Direction towards the outside, so that the arms 76 'of the pressers 76 protrude in the region of the guide member 66 in the direction of the paddle wheel 10.
  • the pressers 76 can be pivoted clockwise against the force of a spring. After passing the holding device 56, the pressure pusher 76 swings back into its rest position shown in the figures.
  • Such pressers 76 and their mode of operation are described in EP-A 0 312 749 and the corresponding US Pat. No. 4,886,264.
  • the distance between two successive pressers 76 is greater than the distance between the trailing edge 52 of two printed products 18 arranged in adjacent pockets 14 during ejection from the paddle wheel 10.
  • the endless chain 74 is circumferential in the direction of arrow B against the direction of rotation A of the paddle wheel 10 Speed driven which is greater than the circumferential speed of the blades 12 in such a way that a presser 76 is assigned to each pocket 14 or each printed product 18 arranged therein.
  • the aligning and pressing arrangement 70 is synchronized with the paddle wheel 10 in such a way that, viewed in the direction of rotation A, a presser 76 comes to lie behind the printed product 18 to be ejected and then catches up with it in the course of the movement to the depositing point 24. In the area of the depositing point 24, the printed product 18 is then moved in the area of its trailing edge 52 by the presser 76 against the perforated plate 58, brought to bear on it and pressed until the presser 76 has passed the holding device 56 and through it clockwise out of engagement with the relevant printed product 18 was pivoted.
  • FIG. 1 two printed products 18 placed one on top of the other rest on the delivery plate 28 and are conveyed away in the conveying direction F by a cam 36.
  • the area of the trailing edge 52 of a further printed product 18 lies on the perforated plate 58 of the holding device 56 and is pressed there by means of a presser 76.
  • the trailing edge 52 of the next-to-be-printed product 18 lies with the trailing edge 52 on the guide member 66 and behind it there is a further presser 76.
  • the two printed products 18 stacked one above the other have been released by the cam 36.
  • These two superimposed printed products 18 lie with the area of their folds 20 on the leading pair of printed products 18, not shown, and are conveyed away by means of a conveyor, not shown, downstream of the cam conveyor 30, for example a belt conveyor.
  • the area the trailing edge 52 of the printed product 18 lying on the holding device 56 has been released from the corresponding pocket 14 and now lies with the area of its fold 20 in scaly form on the two printed products 18 stored one above the other.
  • Another printed product 18 now lies with the area of its trailing edge 52 at the depositing point 24 on the already stored printed product 18 and is pressed against it by means of the corresponding presser 76.
  • a cam 36 of the cam conveyor 30, seen in the direction of the arrow F, runs onto the trailing edges 52 of these latter two printed products 18 and, as soon as they have been released by the presser 76, push them in the direction of the arrow F from the holding device 56.
  • the device shown works as follows:
  • This printed product 18 cannot be conveyed away by the cam 36 ′ which is in the rest position 50 and is held against by the holding device 56 retained by the printed products 18 which have already been placed on top of one another and conveyed away in the conveying direction F.
  • Another is placed on the printed product 18 held by the holding device 56 (FIG. 2), which in turn is held back by a corresponding presser 76 in the area of the holding device 56 until the presser 76 by passing the holding device 56 past it from the active area is pivoted onto the printed products 18.
  • a cam 36 now comes to rest against the trailing edges 52 of the printed products 18 placed one above the other as soon as the presser 76 has released the printed products 18 and pushes them away from the holding device 56.
  • the pressers 76 press the printed products 18 onto the holding device 56 or onto the printed product 18 placed thereon until the printed product 18 coming into contact with the perforated plate 58 is sufficiently held by the holding device 56 as a result of the negative pressure building up or the friction between the two stacked printed products 18 is so large that the overhead Printed product 18 cannot be taken away from the blade 12, on which it still rests with its leading area.
  • control link 54 is only to be held either in its lower rest position shown in the figures or raised to the pivoting position, in which it is located at the same height as the pivoting link 44.
  • controllable grippers are arranged on the chain 34 of the delivery conveyor 26, of which in turn at least every second one can be brought out of the active area onto the printed products 18. These grippers grip the stored printed products 18 in the area of their trailing edges 52, as is known, for example, from EP-A 0 312 749 and 0 265 735 or the corresponding US Pat. Nos. 4,886,264 and 4,886,260.
  • cams which are always effective in conveying, on a pulling element and to provide a further pulling element for the cams which can be switched off, the pulling elements being synchronous with one another and at least for the conveying away of the printed products in a scale formation in which each printed product rests on the preceding one in the manner of a roof tile are driven offset by half a pitch of the cams.
  • the second pulling element can then be switched off and the cams in question can be moved from the area affected Printed products are kept pivoted.
  • the holding device 56 can be connected intermittently or continuously to the vacuum source in time with the printed products 18 to be removed.
  • the cam conveyor 30 pushes the printed products 18 away in a precisely aligned manner, since the cams 36, 36 ′ engage in pairs.
  • the holding device can also be designed differently than is shown in the exemplary embodiment, for example it can have a holding finger or gripper in order to temporarily hold the relevant printed products.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Discharge By Other Means (AREA)
  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
  • Handling Of Cut Paper (AREA)
  • Separation, Sorting, Adjustment, Or Bending Of Sheets To Be Conveyed (AREA)

Description

Die vorliegende Erfindung betrifft eine Vorrichtung zum Uebernehmen von insbesondere gefalteten Druckereierzeugnissen von einem drehend angetriebenen Schaufelrad einer Druckereimaschine gemäss dem Oberbegriff des Anspruchs 1.The present invention relates to a device for taking over, in particular, folded printed products from a rotatingly driven paddle wheel of a printing machine according to the preamble of claim 1.

Eine solche Vorrichtung ist aus der EP-A 0 179 992 bekannt. Mittels eines Schaufelrades werden Signaturbögen auf einem Auslegeförderer zu Stapeln aufeinander abgelegt. Der Auslegeförderer weist ein Band mit in einem Abstand hintereinander angeordneten Transportfingern auf, wobei die Synchronisation von Schaufelrad und Band derart eingestellt sind, dass ein Transportfinger einen Stapel wegtransportiert, wenn eine vorbestimmte Anzahl Signaturbögen aufeinander abgelegt sind und der erste Signaturbogen des folgenden Stapels noch in der Schwebe zwischen dem Schaufelrad und der Ablegestelle ist. Um die Mitnahme des ersten Signaturbogens des folgenden Stapels durch den fertigen wegzutransportierenden Stapel zu verhindern, ist bei der Ablegestelle eine Halteeinrichtung für diesen Signaturbogen vorgesehen. Um das Band bei gleicher Anzahl pro Zeiteinheit zu bildenden Stapeln mit einer verminderten Geschwindigkeit bewegen zu können, wird aus den Stapeln auf dem Auslegeförderer eine Schuppenformation gebildet. Um bei dieser bekannten Vorrichtung die Anzahl der zu einem Stapel aufeinander abgelegten Signaturbogen einzustellen, ist die Synchronisation des Auslegeförderers mit dem Schaufelrad zu verändern.Such a device is known from EP-A 0 179 992. Using a paddle wheel, signature sheets are stacked on top of one another on a delivery conveyor. The delivery conveyor has a belt with transport fingers arranged at a distance one behind the other, the synchronization of the paddle wheel and belt being set such that a transport finger transports a stack away when a predetermined number of signature sheets have been placed on top of one another and the first signature sheet of the following stack is still in the Is floating between the paddle wheel and the drop point. In order to prevent the first signature sheet of the following stack from being carried along by the finished stack to be transported away, a holding device for this signature sheet is provided at the storage location. In order to be able to move the belt at a reduced speed with the same number of stacks to be formed per unit of time, a scale formation is formed from the stacks on the delivery conveyor. In order to set the number of signature sheets stored one on top of the other in this known device, the synchronization of the delivery conveyor with the paddle wheel must be changed.

Weiter sind aus der EP-A 0 265 735 bzw. der entsprechenden US-PS 4,886,260 und der EP-A 0 312 749 bzw. der entsprechenden US-PS 4,886,264 Vorrichtungen zum Uebernehmen von gefalzten Druckereierzeugnissen von einem drehend angetriebenen Schaufelrad einer Druckereimaschine bekannt, bei welchen die Druckereierzeugnisse in einer Schuppenformation, in welcher jedes Druckereierzeugnis jeweils dachziegelartig auf dem vorauslaufenden aufliegt, auf einen Auslegeförderer abgelegt werden. Die Auslegeförderer weisen an einem umlaufend angetriebenen Zugorgan in einem Abstand hintereinander angeordnete, an die Druckereierzeugnisse im Bereich der Nachlaufkanten zur Einwirkung bringbare, steuerbare Greifer bzw. Nocken zum erzeugnisweisen Wegfördern der Druckereierzeugnisse auf. Die Nocken sind am Zugorgan schwenkbar gelagert und werden mittels einer ortsfesten Kulisse im Bereich der Förderwirksamen Strecke des Auslegeförderers in den Bereich der Druckereierzeugnisse verschwenkt.Furthermore, from EP-A 0 265 735 or the corresponding US Pat. No. 4,886,260 and EP-A 0 312 749 or the corresponding US Pat. No. 4,886,264 devices for taking over folded printed products from a rotatingly driven paddle wheel of a printing machine are known from which the printed products are placed on a delivery conveyor in a scale formation, in which each printed product rests in the manner of a roof tile on the preceding one. The delivery conveyors have a controllable gripper or cam arranged on a revolving drive element at a distance one behind the other, which can be brought into action on the printed products in the region of the trailing edges, for conveying the printed products away by product. The cams are pivotally mounted on the traction element and are pivoted into the area of the printed products by means of a fixed link in the area of the conveyor section of the delivery conveyor which is effective for conveying.

Es ist eine Aufgabe der vorliegenden Erfindung eine gattungsgemässe Vorrichtung zu schaffen, welche die wahlweise Bildung von Schuppenformationen, bei welchen jeweils jedes Druckereierzeugnis dachziegelartig auf dem vorauslaufenden aufliegt bzw. jeweils zwei oder mehr Druckereierzeugnisse aufeinanderliegend, dachziegelartig auf den vorauslaufenden Druckereierzeugnissen aufliegen, ohne Anpassung der Synchronisation zwischen Schaufelrad und Auslegeförderer, erlaubt.It is an object of the present invention to provide a generic device which allows the optional formation of scale formations, in which each printed product rests on the preceding one like a roof tile or two or more printed products lie on top of each other, like a roof tile on the preceding printed products, without adapting the synchronization between paddle wheel and delivery conveyor, allowed.

Diese Aufgabe wird durch die Merkmale des kennzeichnenden Teiles des Anspruchs 1 gelöst.This object is achieved by the features of the characterizing part of claim 1.

Mindestens jeder zweite Mitnehmer eines Auslegeförderers ist aus dem Einwirkbereich auf die Druckereierzeugnisse wegschaltbar. Bei nicht weggeschalteten Mitnehmern wird jedes Druckereierzeugnis an seiner Nachlaufkante erfasst und dachziegelartig auf dem vorauslaufenden Druckereierzeugnis aufliegend weggefördert. Ist jeder zweite Mitnehmer aus dem Einwirkbereich auf die Druckereierzeugnisse weggeschaltet, so werden von jedem förderaktiven Mitnehmer zwei aufeinander abgelegte Druckereierzeugnisse erfasst, wobei diese beiden übereinanderliegenden Druckereierzeugnisse jeweils dachziegelartig auf dem vorauslaufenden Paar Druckereierzeugnisse aufliegen. Dabei ist weder die Synchronisation zwischen dem Schaufelrad und dem Auslegeförderer noch die Geschwindigkeit der Mitnehmer zu ändern. Falls jeweils zwei hintereinander angeordnete Mitnehmer aus dem Einwirkbereich auf die Druckereierzeugnisse wegschaltbar sind und jeder dritte Mitnehmer förderwirksam ist, so werden von diesem jeweils drei aufeinander abgelegte Druckereierzeugnisse weggefördert.At least every second driver of a delivery conveyor can be switched off from the area affected by the printed products. In the case of drivers that are not disconnected, each printed product is grasped at its trailing edge and conveyed away in a roof tile-like manner on the preceding printed product. If every second driver is removed from the area of action on the printed products, two printed products stored one on top of the other are detected by each active conveyor, these two superimposed printed products each lying on the preceding pair of printed products in the manner of a roof tile. Neither the synchronization between the paddle wheel and the delivery conveyor nor the speed of the drivers can be changed. If in each case two drivers arranged one behind the other can be switched off from the area of action on the printed products and every third driver has a promotional effect, three printed products placed one on top of the other are conveyed away by the latter.

Eine besonders bevorzugte Ausbildungsform der erfindungsgemässen Vorrichtung, mittels welcher eine äusserst genaue Schuppenbildung möglich ist, ist im Anspruch 7 angegeben. Die Nachlaufkanten der Druckereierzeugnisse werden von Mitnahmeelementen einer Führungseinrichtung zur Ablegestelle geführt und dort von diesen festgehalten bis die Mitnehmerelemente die Auflagestelle passiert haben.A particularly preferred embodiment of the device according to the invention, by means of which an extremely precise formation of dandruff is possible, is specified in claim 7. The trailing edges of the printed products are guided by driving elements of a guide device to the depositing point and held there by the driving elements until the driving elements have passed the support point.

Weitere bevorzugte Ausbildungsformen der erfindungsgemässen Vorrichtung sind in den weiteren abhängigen Ansprüchen angegeben.Further preferred embodiments of the device according to the invention are specified in the further dependent claims.

Die Erfindung wird nun anhand eines in der Zeichnung dargestellten Ausführungsbeispieles näher beschrieben. Es zeigen rein schematisch:

Figuren 1 und 2
im Schnitt entlang der Linie I-I der Figur 3 die Vorrichtung zu zwei verschiedenen Zeitpunkten eines Arbeitszyklus, und
Figur 3
vereinfacht eine Seitenansicht in Richtung des Pfeiles III der Figur 2.
The invention will now be described with reference to an embodiment shown in the drawing. It shows purely schematically:
Figures 1 and 2
in section along the line II of Figure 3, the device at two different times in a working cycle, and
Figure 3
simplified a side view in the direction of arrow III of FIG. 2.

Die in den Figuren 1 bis 3 gezeigte Vorrichtung weist eine Schaufelradanordnung einer Druckereimaschine mit vier nebeneinander angeordneten, in Pfeilrichtung A drehend angetriebenen Schaufelrädern 10 auf, von welchen in den Figuren 1 und 2 nur eines sichtbar ist. Jedes Schaufelrad 10 weist sternförmig angeordnete Schaufeln 12 auf, welche Taschen 14 begrenzen, die an ihrem inneren Ende mittels eines Bodens 16 abgeschlossen sind. In die Taschen 14 werden in bekannter nicht dargestellter Art und Weise gefalzte Druckereierzeugnisse 18, wie beispielsweise Zeitungen, Zeitschriften oder Teile davon, mit ihrem Falz 20 voraus eingeschossen. Zwischen den jeweils auf einer Seite angeordneten Schaufelrädern 10 ist jeweils ein Ausstossorgan 22 vorgesehen. Im Zuge der Drehung der Schaufelräder 10 in Pfeilrichtung A kommen die Druckereierzeugnisse 18 mit ihrem vorlaufenden Falz 20 am Ausstossorgan 22 zur Anlage, wodurch die Druckereierzeugnisse 18 aus den Taschen 14 ausgestossen und an einer mit 24 bezeichneten Ablegestelle auf einen unterhalb der Schaufelräder 10 angeordneten Auslegeförderer 26 abgelegt werden.The device shown in FIGS. 1 to 3 has a paddle wheel arrangement of a printing machine with four paddle wheels 10 arranged side by side and driven in the direction of arrow A, only one of which is visible in FIGS. 1 and 2. Each paddle wheel 10 has blades 12 arranged in a star shape, which delimit pockets 14 which are closed at their inner end by means of a base 16. Folded printed products 18, such as newspapers, magazines or parts thereof, are shot into the pockets 14 in a known manner, not shown, with their fold 20 ahead. An ejection member 22 is provided between each of the paddle wheels 10 arranged on one side. In the course of the rotation of the paddle wheels 10 in the direction of arrow A, the printed products 18 come to rest with their leading fold 20 on the ejection member 22, as a result of which the printed products 18 are ejected from the pockets 14 and at a depositing location designated 24 on a delivery conveyor 26 arranged below the paddle wheels 10 be filed.

Der Auslegeförderer 26 weist unterhalb einer zweiteiligen Auslegeplatte 28, deren Teile 28' seitlich voneinander beabstandet sind (Fig. 3), einen Nockenförderer 30 mit zwei um Kettenräder 32 herumgeführten Ketten 34 auf. Die einander entsprechenden Kettenräder 32 sind an gemeinsamen Wellen 35, 35' gelagert. Die Ketten 34 sind in Förderrichtung F synchron zueinander umlaufend angetrieben und weisen in einem festen Abstand hintereinander angeordnete Nocken 36, 36' auf. Die beiden parallel zueinander verlaufenden Ketten 34 sind in einer Richtung rechtwinklig zur Förderrichtung F soweit voneinander beabstandet, dass die betreffenden Nocken 36, 36' benachbart zu den Auslegeplattenteilen 28' zwischen diesen durchlaufen.The delivery conveyor 26 has, below a two-part delivery plate 28, the parts 28 'of which are laterally spaced apart (FIG. 3), a cam conveyor 30 with two chains 34 guided around chain wheels 32. The corresponding sprockets 32 are mounted on common shafts 35, 35 '. The chains 34 are driven in rotation in synchronism with each other in the conveying direction F and have cams 36, 36 ′ arranged one behind the other at a fixed distance. The two chains 34, which run parallel to one another, are spaced apart from one another in a direction perpendicular to the conveying direction F in such a way that the cams 36, 36 'in question pass between them adjacent to the extension plate parts 28'.

Die mit ausgezogenen Linien und mit 36 bezeichneten Nocken sind direkt seitlich neben der Kette 34 an dieser angeordnet, während die jeweils dazwischen vorgesehenen, strichpunktiert gezeichneten und mit 36' bezeichneten Nocken von der Kette 34 weiter beabstandet, seitlich der Nocken 36, an der Kette 34 gelagert sind (siehe insbesondere Figur 3). Die Nocken 36, 36' sind identisch aufgebaut und mittels je eines Bolzens 38 an der Kette 34 schwenkbar gelagert. Jeder Nocken 36, 36' weist ein in Förderrichtung F gesehen dem Bolzen 38 nachlaufend ein zum Bolzen 38 konzentrisches Langloch 40 auf, durch welches ein ebenfalls an der Kette 34 befestigter Begrenzungsbolzen 42 verläuft. Der Begrenzungsbolzen 42 begrenzt die Schwenkbewegung der Nocken 36, 36'.The cams with solid lines and with 36 are arranged directly to the side of the chain 34, while the cams provided therebetween, shown in dash-dot lines and labeled 36 ', are further spaced from the chain 34, to the side of the cams 36, on the chain 34 are stored (see in particular Figure 3). The cams 36, 36 'are constructed identically and are pivotably mounted on the chain 34 by means of a bolt 38 each. Each cam 36, 36 'has, seen in the conveying direction F, following the pin 38, an elongated hole 40 which is concentric with the pin 38 and through which a limiting pin 42 also fastened to the chain 34 runs. The limiting pin 42 limits the pivoting movement of the cams 36, 36 '.

Den Nocken 36 jeder Kette 34 ist eine feste Schwenkkulisse 44 zugeordnet, die sich, in Förderrichtung F gesehen, im Bereich des der Ablagestelle 24 vorgelagerten Kettenrades 32 beginnend bis vor das andere Kettenrad 72 erstreckt. Beim Auflaufen auf die Schwenkkulisse 44 werden die Nocken 36 im Gegenuhrzeigersinn in ihre mit 46 bezeichnete Mitnahmestellung verschwenkt, in welcher sie im Bereich der Auslegeplatte 28 über diese mit ihren Mitnehmernasen 48 vorstehen. Beim Ablaufen ab der Schwenkkulisse 44 verschwenken sich die Nocken 36 durch ihr Eigengewicht oder gegebenenfalls unter der Kraft einer Feder im Uhrzeigersinn von der Mitnahmestellung 46 in eine Ruhestellung 50, in welcher die freien Enden der Mitnehmernasen 48 unterhalb der Oberfläche der Auslegeplatte 28 angeordnet sind. Die Ruhestellung 50 ist am Beispiel eines Nockens 36' gezeigt. Beim Verschwenken des Nockens 36 aus der Mitnahmestellung 46 in die Ruhestellung 50 am Ende der Schwenkkulisse 44 verschwenken sich die Mitnehmernasen 48 aus dem Einwirkbereich auf die Nachlaufkanten 52 der auf die Auslegeplatte 28 abgelegten und mittels der Nocken 36 weggeförderten Druckereierzeugnisse 18, ohne dabei die dem Falz 20 gegebüberliegende offene Nachlaufkante 52 zu beschädigen. Dabei ist zu beachten, dass das Verschwenken der Nocken 36 in ihre Ruhestellung 50 erfolgt bevor die Nocken 36 auf den Umfang des Kettenrades 32 auflaufen.A fixed swivel link 44 is assigned to the cams 36 of each chain 34 and, viewed in the conveying direction F, extends in the region of the chain wheel 32 upstream of the deposit point 24, starting in front of the other chain wheel 72. When running onto the pivoting link 44, the cams 36 are pivoted counterclockwise into their driving position, designated 46, in which they protrude in the region of the delivery plate 28 with their driving lugs 48. When running from the pivoting link 44, the cams 36 pivot clockwise by their own weight or possibly under the force of a spring from the driving position 46 into a rest position 50, in which the free ends of the driving lugs 48 are arranged below the surface of the extension plate 28. The rest position 50 is shown using the example of a cam 36 '. When pivoting the cam 36 from the driving position 46 into the rest position 50 at the end of the pivot link 44, the driving lugs 48 pivot from the area of action onto the trailing edges 52 of the printed products 18 deposited on the delivery plate 28 and conveyed away by means of the cams 36, without the fold Damage 20 opposite open trailing edge 52. It should be noted here that the cams 36 are pivoted into their rest position 50 before the cams 36 run onto the circumference of the chain wheel 32.

Den Nocken 36' ist eine der Schwenkkulisse 44 ähnlich ausgebildete Steuerkulisse 54 zugeordnet. Diese ist in den Figuren 1 und 2 nur über einen Bereich ihrer Länge strichpunktiert angedeutet. Die Steuerkulisse 54 ist mittels einer in Figur 1 nur schematisch gezeigten Steuereinrichtung 55 von ihrer in den Figuren gezeigten Ruhelage in eine Verschwenklage, in welcher sie sich auf der Höhe der Schwenkkulisse 44 befindet und wieder zurück bringbar. Befindet sich die Steuerkulisse 54 in ihrer Ruhelage, so verbleiben die Nocken 36' im Bereich der Steuerkulisse 54 in der Ruhestellung 50, während sie bei sich in Verschwenklage angehobener Steuerkulisse 54 in die Mitnahmestellung 46 verschwenken, in welcher die Mitnehmernasen 48 der Nocken 36' über die Auslegeplatte 28 hervorgreifen. Bei sich in Ruhelage befindender Steuerkulisse 54 sind somit nur die Nocken 36 förderaktiv, während bei sich in Verschwenklage befindender Steuerkulisse 54 sowohl die Nocken 36 als auch die Nocken 36' förderaktiv sind.A control link 54 of similar design to the pivot link 44 is assigned to the cams 36 '. This is indicated in FIGS. 1 and 2 only by a dash-dot line over a region of its length. The control link 54 is by means of a control device 55 shown only schematically in FIG. 1 from its rest position shown in the figures in FIG a pivot position in which it is at the level of the pivot link 44 and can be brought back again. If the control link 54 is in its rest position, the cams 36 'remain in the rest position 50 in the region of the control link 54, while when the control link 54 is raised in the pivoted position, they pivot into the driving position 46, in which the driving lugs 48 of the cams 36' pass over pick out the extension plate 28. When the control link 54 is in the rest position, only the cams 36 are thus active in conveyance, while when the control link 54 is in the pivoting position, both the cams 36 and the cams 36 ′ are active in delivery.

Bei der Ablegestelle 24 ist eine mit 56 bezeichnete Halteeinrichtung vorgesehen. Diese weist eine mit der Auslegeplatte 28 fluchtende, zwischen den Ketten 34 angeordnete Lochplatte 58 auf, deren Löcher 60 in einen Kanal 62 münden, welcher über eine Leitung 64 mit einer nicht dargestellten Unterdruckquelle verbunden ist. Die Strömung der von der Unterdruckquelle angesaugten Luft ist mit Pfeilen angedeutet. Das jeweils direkt auf der Lochplatte 58 aufliegende Druckereierzeugnis 18 wird im der Nachlaufkante 52 benachbarten Bereich in Folge des Unterdrucks von der Halteeinrichtung 56 gehalten.At the storage location 24, a holding device designated 56 is provided. This has a perforated plate 58, aligned with the delivery plate 28, arranged between the chains 34, the holes 60 of which open into a channel 62 which is connected via a line 64 to a vacuum source, not shown. The flow of the air sucked in by the vacuum source is indicated by arrows. The printed product 18 lying directly on the perforated plate 58 is held in the area adjacent to the trailing edge 52 as a result of the negative pressure by the holding device 56.

Entlang der Bewegungsbahn der Nachlaufkanten 52 während des Ausstossens aus den Taschen 14 des Schaufelrades 10 verläuft ein Leitorgan 66, welches in seinem oberen Endbereich eine vom Schaufelrad 10 weggerichtete Einlaufkrümmung 66' aufweist und dessen unterer Endbereich die von der Auslegeplatte 28 definierte Förderebene 68 kreuzt. Das Leitorgan 66 ist der besseren Uebersichtlichkeit halber in der Figur 3 nicht dargestellt.Along the path of movement of the trailing edges 52 during ejection from the pockets 14 of the paddle wheel 10 there is a guide element 66 which has in its upper end region an inlet curve 66 'directed away from the paddle wheel 10 and whose lower end region crosses the conveying plane 68 defined by the delivery plate 28. The guide member 66 is not shown in FIG. 3 for the sake of clarity.

Auf der dem Schaufelrad 10 abgewandten Seite des Leitorganes 66 ist eine Ausricht- und Andrückanordnung 70 vorgesehen. Diese weist eine um zwei weitere Kettenräder 72 geführte Endloskette 74 auf, an welcher in bestimmten Abständen paarweise Andrücker 76 befestigt sind. Das untere Kettenrad 72 ist auf der gleichen Welle 35 wie das in Förderrichtung F gesehen der Ablagestelle 24 vorgelagerte Kettenrad 32 des Nockenförderers 30 gelagert. Der aktive Trum 74' dieser Endloskette 74 verläuft parallel zum Leitorgan 66 und kreuzt die Förderebene 68 benachtbart zur Halteeinrichtung 56. Die Andrücker 76 sind an der Endloskette 74 schwenkbar gelagert und stehen in ihrer in den Figuren gezeigten Ruhelage ungefähr rechtwinklig zur Endloskette 74 von dieser in Richtung gegen aussen ab, sodass die Arme 76' der Andrücker 76 im Bereich des Leitorganes 66 über dieses in Richtung gegen das Schaufelrad 10 vorstehen. Die Andrücker 76 sind beim Auflaufen auf die Halteeinrichtung 56 bzw. auf ein darauf abgelegtes Druckereierzeugnis 18, entgegen der Kraft einer Feder im Uhrzeigersinn verschwenkbar. Nach dem Vorbeilaufen an der Halteeinrichtung 56 schwenken die Andrücker 76 wieder in ihre in den Figuren gezeigte Ruhelage zurück. Solche Andrücker 76 und ihre Funktionsweise sind in der EP-A 0 312 749 bzw. der entsprechenden US-PS 4,886,264 beschrieben. Der Abstand zwischen zwei aufeinanderfolgenden Andrückern 76 ist grösser als der Abstand zwischen den Nachlaufkante 52 zweier in benachbarten Taschen 14 angeordneter Druckereierzeugnisse 18 während des Ausstossens aus dem Schaufelrad 10. Die Endloskette 74 ist aber in Pfeilrichtung B entgegen der Drehrichtung A des Schaufelrades 10 umlaufend mit einer Geschwindigkeit angetrieben, die grösser ist als die Umfangsgeschwindigkeit der Schaufeln 12 und zwar derart, dass jeder Tasche 14 bzw. jedem darin angeordneten Druckereierzeugnis 18 ein Andrücker 76 zugeordnet ist.An alignment and pressing arrangement 70 is provided on the side of the guide member 66 facing away from the impeller 10. This has an endless chain 74 guided around two further sprockets 72, to which pushers 76 are attached in pairs at certain intervals. The lower sprocket 72 is mounted on the same shaft 35 as the sprocket 32 of the cam conveyor 30 located upstream of the depositing point 24 in the direction of conveyance F. The active run 74 'of this endless chain 74 runs parallel to the guide member 66 and crosses the conveying plane 68 adjacent to the holding device 56. The pushers 76 are pivotably mounted on the endless chain 74 and, in the rest position shown in the figures, are approximately at right angles to the endless chain 74 thereof Direction towards the outside, so that the arms 76 'of the pressers 76 protrude in the region of the guide member 66 in the direction of the paddle wheel 10. When pressed onto the holding device 56 or onto a printed product 18 placed thereon, the pressers 76 can be pivoted clockwise against the force of a spring. After passing the holding device 56, the pressure pusher 76 swings back into its rest position shown in the figures. Such pressers 76 and their mode of operation are described in EP-A 0 312 749 and the corresponding US Pat. No. 4,886,264. The distance between two successive pressers 76 is greater than the distance between the trailing edge 52 of two printed products 18 arranged in adjacent pockets 14 during ejection from the paddle wheel 10. However, the endless chain 74 is circumferential in the direction of arrow B against the direction of rotation A of the paddle wheel 10 Speed driven which is greater than the circumferential speed of the blades 12 in such a way that a presser 76 is assigned to each pocket 14 or each printed product 18 arranged therein.

Die Ausricht- und Andrückanordnung 70 ist mit dem Schaufelrad 10 derart synchronisiert, dass in Umlaufrichtung A gesehen ein Andrücker 76 jeweils hinter das auszustossende Druckereierzeugnis 18 zu liegen kommt und dieses dann im Zuge der Bewegung zur Ablegestelle 24 aufholt. Im Bereich der Ablegestelle 24 wird dann das Druckereierzeugnis 18 im Bereich seiner Nachlaufkante 52 vom Andrücker 76 gegen die Lochplatte 58 bewegt, darauf zur Anlage gebracht und angedrückt bis der Andrücker 76 die Halteeinrichtung 56 passiert hat und durch diese im Uhrzeigersinn ausser Eingriff mit dem betreffenden Druckereierzeugnis 18 geschwenkt wurde.The aligning and pressing arrangement 70 is synchronized with the paddle wheel 10 in such a way that, viewed in the direction of rotation A, a presser 76 comes to lie behind the printed product 18 to be ejected and then catches up with it in the course of the movement to the depositing point 24. In the area of the depositing point 24, the printed product 18 is then moved in the area of its trailing edge 52 by the presser 76 against the perforated plate 58, brought to bear on it and pressed until the presser 76 has passed the holding device 56 and through it clockwise out of engagement with the relevant printed product 18 was pivoted.

In der Figur 1 liegen zwei aufeinander abgelegte Druckereierzeugnisse 18 auf der Auslegeplatte 28 auf und werden von einem Nocken 36 erfasst in Förderrichtung F weggefördert. Der Bereich der Nachlaufkante 52 eines weiteren Druckereierzeugnisses 18 liegt auf der Lochplatte 58 der Halteeinrichtung 56 auf und wird mittels eines Andrückers 76 dort angedrückt. Das entgegen Pfeilrichtung A nächstfolgende Druckereierzeugnis 18 liegt mit seiner Nachlaufkante 52 am Leitorgan 66 an und hinter ihm befindet sich ein weiterer Andrücker 76.In FIG. 1, two printed products 18 placed one on top of the other rest on the delivery plate 28 and are conveyed away in the conveying direction F by a cam 36. The area of the trailing edge 52 of a further printed product 18 lies on the perforated plate 58 of the holding device 56 and is pressed there by means of a presser 76. The trailing edge 52 of the next-to-be-printed product 18 lies with the trailing edge 52 on the guide member 66 and behind it there is a further presser 76.

In der Figur 2 sind die beiden übereinander abgelegten Druckereierzeugnisse 18 vom Nocken 36 freigegeben worden. Diese beiden aufeinanderliegenden Druckereierzeugnisse 18 liegen mit dem Bereich ihrer Falze 20 auf dem nicht dargestellten, vorauslaufenden Paar von Druckereierzeugnissen 18 auf und werden mittels eines nicht dargestellten dem Nockenförderer 30 nachgeschalteten Förderers, beispielsweise Bandförderers, weggefördert. Das mit dem Bereich seiner Nachlaufkante 52 auf der Halteeinrichtung 56 anliegende Druckereierzeugnis 18 wurde von der entsprechenden Tasche 14 freigegeben und liegt mit dem Bereich seines Falzes 20 nun schuppenförmig auf den beiden übereinander abgelegten Druckereierzeungissen 18 auf. Ein weiteres Druckereierzeugnis 18 liegt nun mit dem Bereich seiner Nachlaufkante 52 bei der Ablegestelle 24 auf dem bereits abgelegten Druckereierzeugnis 18 auf und wird mittels des entsprechenden Andrückers 76 gegen dieses gedrückt. Ein Nocken 36 des Nockenförderers 30 läuft, in Pfeilrichtung F gesehen, auf die Nachlaufkanten 52 dieser beiden letztgenannten Druckereierzeugnisse 18 auf und wird diese, sobald sie vom Andrücker 76 freigegeben worden sind, in Pfeilrichtung F ab der Halteeinrichtung 56 stossen.In FIG. 2, the two printed products 18 stacked one above the other have been released by the cam 36. These two superimposed printed products 18 lie with the area of their folds 20 on the leading pair of printed products 18, not shown, and are conveyed away by means of a conveyor, not shown, downstream of the cam conveyor 30, for example a belt conveyor. The area the trailing edge 52 of the printed product 18 lying on the holding device 56 has been released from the corresponding pocket 14 and now lies with the area of its fold 20 in scaly form on the two printed products 18 stored one above the other. Another printed product 18 now lies with the area of its trailing edge 52 at the depositing point 24 on the already stored printed product 18 and is pressed against it by means of the corresponding presser 76. A cam 36 of the cam conveyor 30, seen in the direction of the arrow F, runs onto the trailing edges 52 of these latter two printed products 18 and, as soon as they have been released by the presser 76, push them in the direction of the arrow F from the holding device 56.

Die gezeigte Vorrichtung arbeitet wie folgt:The device shown works as follows:

Um eine Schuppenformation zu bilden, in welcher jeweils zwei Druckereierzeugnisse 18 schuppenförmig auf den vorauslaufenden Druckereierzeungissen 18 aufliegen, wird die den Nocken 36' zugeordnete Steuerkulisse 54 in ihrer in den Figuren gezeigten unteren Ruhelage gehalten, sodass jeweils nur die Nocken 36 förderaktiv sind und die Nocken 36' im Bereich der Halteeinrichtung 56 und der Auslegeplatte 28 sich in der Ruhestellung 50 befinden. Wie dies in der Figur 1 gezeigt ist, wird ein Druckereierzeugnis 18 mit dem Bereich seiner Nachlaufkante 52 auf die Halteeinrichtung 56 abgelegt und dort vom entsprechenden Andrücker 76 angepresst bis dieser durch die Halteeinrichtung 56 aus dem Eingriff mit dem Druckereierzeugnis 18 geschwenkt wird. Dieses Druckereierzeugnis 18 kann vom sich in Ruhestellung 50 befindenden Nocken 36' nicht weggefördert werden und wird von der Halteeinrichtung 56 gegen Mitnahme durch die bereits aufeinander abgelegten und in Förderrichtung F weggeförderten Druckereierzeugnisse 18 zurückgehalten. Auf das von der Halteeinrichtung 56 gehaltene Druckereierzeugnis 18 wird ein weiteres abgelegt (Fig. 2), welches wiederum von einem entsprechenden Andrücker 76 im Bereich der Halteeinrichtung 56 zurückgehalten wird, bis der Andrücker 76 durch Passieren an der Halteeinrichtung 56 vorbei von dieser aus dem Einwirkbereich auf die Druckereierzeugnisse 18 verschwenkt wird. Ein Nocken 36 kommt nun an die Nachlaufkanten 52 der übereinander abgelegten Druckereierzeugnisse 18 zur Anlage, sobald der Andrücker 76 die Druckereierzeugnisse 18 freigegeben hat und stösst diese von der Halteeinrichtung 56 weg. Dabei liegen die Falze 20 dieser aufeinander abgelegten Druckereierzeugnisse 18 auf den beiden aufeinander abgelegten, in Förderrichtung F vorlaufenden Druckereierzeugnissen 18 auf. Das nächstfolgende aus dem Schaufelrad 10 auszustossende Druckereierzeugnis kommt wiederum auf die Lochplatte 58 der Halteeinrichtung 56 zu liegen, wie dies in Figur 1 gezeigt ist. Es ist zu beachten, dass in Folge der höheren Umlaufgeschwindigkeit der Andrücker 76 bezüglich der Geschwindigkeit der Nachlaufkanten 52, die Andrücker 76 nicht richtig und korrekt in den Taschen 14 liegende Druckereierzeugnisse 18 erfassen und in Pfeilrichtung A nach vorne stossen bis diese am Ausstossorgan 22 ausgerichtet anliegen. Ueberdies drücken die Andrücker 76 die Druckereierzeugnisse 18 solange an die Halteeinrichtung 56 bzw. an das darauf abgelegte Druckereierzeugnis 18, bis das auf der Lochplatte 58 zur Anlage kommende Druckereierzeugnis 18 von der Halteeinrichtung 56 infolge des sich aufbauenden Unterdrucks genügend festgehalten ist bzw. die Reibung zwischen den beiden aufeinander abgelegten Druckereierzeugnissen 18 so gross ist, dass das obenliegende Druckereierzeugnis 18 von der Schaufel 12, auf welcher es mit seinem vorlaufenden Bereich noch aufliegt, nicht mitgenommen werden kann.In order to form a scale formation, in each of which two printed products 18 lie in a scale-like manner on the preceding printed products 18, the control link 54 assigned to the cams 36 'is held in its lower rest position shown in the figures, so that in each case only the cams 36 are conveying active and the cams 36 'are in the rest position 50 in the area of the holding device 56 and the delivery plate 28. As shown in FIG. 1, a printed product 18 is placed with its trailing edge 52 on the holding device 56 and pressed there by the corresponding presser 76 until it is pivoted out of engagement with the printed product 18 by the holding device 56. This printed product 18 cannot be conveyed away by the cam 36 ′ which is in the rest position 50 and is held against by the holding device 56 retained by the printed products 18 which have already been placed on top of one another and conveyed away in the conveying direction F. Another is placed on the printed product 18 held by the holding device 56 (FIG. 2), which in turn is held back by a corresponding presser 76 in the area of the holding device 56 until the presser 76 by passing the holding device 56 past it from the active area is pivoted onto the printed products 18. A cam 36 now comes to rest against the trailing edges 52 of the printed products 18 placed one above the other as soon as the presser 76 has released the printed products 18 and pushes them away from the holding device 56. The folds 20 of these printed products 18 placed one on top of the other rest on the two stacked printed products 18 leading in the conveying direction F. The next printed product to be ejected from the impeller 10 in turn comes to rest on the perforated plate 58 of the holding device 56, as shown in FIG. 1. It should be noted that as a result of the higher rotational speed of the pressers 76 with respect to the speed of the trailing edges 52, the pressers 76 do not correctly and correctly grip printed products 18 lying in the pockets 14 and push forward in the direction of the arrow A until they rest against the ejection member 22 . In addition, the pressers 76 press the printed products 18 onto the holding device 56 or onto the printed product 18 placed thereon until the printed product 18 coming into contact with the perforated plate 58 is sufficiently held by the holding device 56 as a result of the negative pressure building up or the friction between the two stacked printed products 18 is so large that the overhead Printed product 18 cannot be taken away from the blade 12, on which it still rests with its leading area.

Um eine Schuppenformation zu bilden, bei welcher jeweils jedes Druckereierzeugnis 18 dachziegelartig auf dem vorauslaufenden Druckereierzeugnis 18 aufliegt, wird die Steuerkulisse 54 in die obere Verschwenklage angehoben, sodass sowohl die Nocken 36 als auch die Nocken 36' förderaktiv sind. Dies hat zur Folge, dass jedes aus dem Schaufelrad 10 ausgestossene Druckereierzeugnis 18 einzeln von einem Nocken 36 bzw. 36' erfasst und in Förderrichtung F weggefördert wird. Bei dieser Betriebsart ist es nicht mehr zwingend notwendig, dass die Halteeinrichtung in Betrieb ist, das heisst, dass sie mit der Unterdruckquelle verbunden bleibt bzw. die Unterdruckquelle in Funktion ist. Vorübergehend halten ja die Andrücker 76 das auf der Halteeinrichtung 56 anliegende Druckereierzeugnis 18 gegen Mitnahme durch das vorauslaufende Druckereierzeugnis bzw. die betreffende Schaufel 12 zurück. Um eine äusserst genaue Schuppenformation zu erzielen, bleibt aber auch bei dieser Betriebsart die Halteeinrichtung 56 vorteilhafterweise eingeschaltet.In order to form a scale formation, in which each printed product 18 rests in the manner of a roof tile on the preceding printed product 18, the control link 54 is raised into the upper pivot position, so that both the cams 36 and the cams 36 'are active in conveying. The result of this is that each printed product 18 ejected from the impeller 10 is individually gripped by a cam 36 or 36 'and conveyed away in the conveying direction F. In this operating mode, it is no longer absolutely necessary that the holding device is in operation, that is to say that it remains connected to the vacuum source or the vacuum source is in operation. The pressers 76 temporarily hold back the printed product 18 lying on the holding device 56 against being carried along by the leading printed product or the relevant blade 12. In order to achieve an extremely precise scale formation, the holding device 56 advantageously also remains switched on in this operating mode.

Es ist zu beachten, dass für das Umschalten von einer Betriebsart auf die andere keine Geschwindigkeitsanpassungen bzw. Synchronisationsänderungen zwischen dem Schaufelrad 10, dem Auslegeförderer 26 und der Ausricht- und Andrückanordnung 70 vorzunehmen sind. Einzig und allein ist die Steuerkulisse 54 entweder in ihrer unteren, in den Figuren gezeigten Ruhelage zu halten oder in die Verschwenklage anzuheben, in welcher sie sich auf gleicher Höhe wie die Schwenkkulisse 44 befindet.It should be noted that there is no need to make any speed adjustments or synchronization changes between the bucket wheel 10, the delivery conveyor 26 and the alignment and pressing arrangement 70 for switching from one operating mode to the other. The control link 54 is only to be held either in its lower rest position shown in the figures or raised to the pivoting position, in which it is located at the same height as the pivoting link 44.

Dadurch, dass die Druckereierzeugnisse 18 während des gesamten Auslegevorganges geführt bzw. gehalten sind, wird eine äusserst genaue Schuppenformation erzielt. Bei einer Schuppenformation, in welcher jeweils zwei Druckereierzeugnisse 18 dachziegelartig auf dem jeweils vorlaufenden Paar von Druckereierzeugnissen 18 aufliegen, entspricht der Abstand zwischen den Nachlaufkanten 52 bzw. Falzen 20 von zwei Paaren von Druckereierzeugnissen 18 jeweils dem Abstand zwischen zwei aufeinanderfolgenden Nocken 36, wogegen bei einer Schuppenformation, in welcher jedes Druckereierzeugnis 18 dachziegelartig auf dem vorauslaufenden aufliegt, der Abstand zwischen den Nachlaufkanten 52, dem Abstand zwischen den Nocken 36 und 36' entspricht.The fact that the printed products 18 are guided or held during the entire laying process results in an extremely precise scale formation. In the case of a scale formation, in which two printed products 18 each resemble roof tiles on the leading pair of printed products 18, the distance between the trailing edges 52 or folds 20 of two pairs of printed products 18 corresponds to the distance between two successive cams 36, whereas one Scale formation in which each printed product 18 rests like a roof tile on the leading one, the distance between the trailing edges 52 corresponds to the distance between the cams 36 and 36 '.

Es ist auch denkbar, dass an der Kette 34 des Auslegeförderers 26 steuerbarere Greifer angeordnet sind, von welchen wiederum mindestens jeder zweite aus dem Einwirkbereich auf die Druckereierzeugnisse 18 bringbar ist. Diese Greifer erfassen die abgelegten Druckereierzeugnisse 18 im Bereich ihrer Nachlaufkanten 52, wie dies beispielsweise aus der EP-A 0 312 749 und 0 265 735 bzw. der entsprechenden US-PS'en 4,886,264 und 4,886,260 bekannt ist. Es ist selbstverständlich auch möglich, die immer förderwirksamen Nocken an einem Zugorgan anzuordnen und ein weiteres Zugorgan für die wegschaltbaren Nocken vorzusehen, wobei die Zugorgane mindestens für das Wegfördern der Druckereierzeugnisse in einer Schuppenformation, in welcher jedes Druckereierzeugnis dachziegelartig auf dem vorauslaufenden aufliegt, synchron zueinander und um eine halbe Teilung der Nocken gegeneinander versetzt angetrieben sind. Für das Ablegen von jeweils zwei Druckereierzeugnissen aufeinander, können dann das zweite Zugorgan ausgeschaltet und die betreffenden Nocken aus dem Einwirkbereich auf die Druckereierzeugnisse verschwenkt gehalten werden. Zum Führen der Druckereierzeugnisse im Bereich ihrer Nachlaufkanten beim Ausstossen aus den Taschen des Schaufelrades ist es auch denkbar, anstelle des Leitorganes 66 und der Ausricht- und Andrückanordnung 70 ein umlaufend angetriebenes Band vorzusehen, an welches die Druckereierzeugnisse mit ihren Nachlaufkanten zur Anlage kommen.It is also conceivable that more controllable grippers are arranged on the chain 34 of the delivery conveyor 26, of which in turn at least every second one can be brought out of the active area onto the printed products 18. These grippers grip the stored printed products 18 in the area of their trailing edges 52, as is known, for example, from EP-A 0 312 749 and 0 265 735 or the corresponding US Pat. Nos. 4,886,264 and 4,886,260. It is of course also possible to arrange the cams, which are always effective in conveying, on a pulling element and to provide a further pulling element for the cams which can be switched off, the pulling elements being synchronous with one another and at least for the conveying away of the printed products in a scale formation in which each printed product rests on the preceding one in the manner of a roof tile are driven offset by half a pitch of the cams. For the placement of two printed products on top of each other, the second pulling element can then be switched off and the cams in question can be moved from the area affected Printed products are kept pivoted. To guide the printed products in the area of their trailing edges when ejecting them from the pockets of the paddle wheel, it is also conceivable to provide a rotating belt instead of the guide element 66 and the alignment and pressing arrangement 70, against which the printed products come into contact with their trailing edges.

Die Halteeinrichtung 56 kann im Takt mit den wegzufördernden Druckereierzeugnissen 18 intermittierend oder dauernd mit der Unterdruckquelle verbunden sein. Auf jeden Fall stösst der Nockenförderer 30 die Druckereierzeugnisse 18 genau ausgerichtet weg, da die Nocken 36, 36' paarweise angreifen.The holding device 56 can be connected intermittently or continuously to the vacuum source in time with the printed products 18 to be removed. In any case, the cam conveyor 30 pushes the printed products 18 away in a precisely aligned manner, since the cams 36, 36 ′ engage in pairs.

Die Halteeinrichtung kann auch anders ausgebildet sein als dies im Ausführungsbeispiel gezeigt ist, so kann sie beispielsweise einen Haltefinger oder Greifer aufweisen, um die betreffenden Druckereierzeugnisse vorübergehend festzuhalten.The holding device can also be designed differently than is shown in the exemplary embodiment, for example it can have a holding finger or gripper in order to temporarily hold the relevant printed products.

Claims (7)

  1. Apparatus for the taking-over of, in particular, folded printing products (18), from a rotatingly driven paddle wheel (10) of a printing machine, having a delivery conveyor (26), which is arranged underneath the paddle wheel, having carriers (36, 36'), which are arranged at intervals one behind the other, are driven in the conveying direction of the delivery conveyor and can be made to act against the trailing edges (52) of the printing products deposited at a depositing point (24) onto the delivery conveyor, for conveying away the printing products in imbricated formation, and having a holding device (56), which is arranged at the depositing point, for holding back the printing products respectively coming into the effective range of the holding device, characterised in that at least every second carrier (36') can be switched away out of the effective range of action on the printing products (18).
  2. Apparatus according to Claim 1, characterised in that the carriers (36, 36') are arranged on a drawing member driven in circulation, preferably a conveying chain (34), and a control device (54, 55) is provided for the carriers (36') which can be switched away.
  3. Apparatus according to Claim 2, characterised in that the carriers (36') which can be switched away are arranged on the drawing member (34) laterally offset with respect to the carriers (36) which are always effectively conveying.
  4. Apparatus according to Claim 2 or 3, characterised in that all the carriers (36, 36'), preferably cams, are mounted on the drawing member (34) in such a way that they can be brought, preferably pivotally, from a position of rest (50) into a carrying position (46) and back again, and for the carriers (36) which are always effectively conveying there is provided in the region of the effectively conveying zone a control element (44), preferably in the form of a connecting link, for pivoting the corresponding carriers (36) each time into the carrying position (46).
  5. Apparatus according to one of Claims 2 to 4, characterised in that two drawing members (34) which run parallel to each other, are spaced laterally apart from each other and circulate synchronously are provided with carriers (36, 36'), the mutually corresponding carriers (36; 36') of the two drawing members (34) being aligned with one another in the conveying direction (F).
  6. Apparatus according to one of Claims 1 to 5, characterised in that the holding device (56) has a rest (58), in the form of a plate, for the printing products (18), with holes (60) which can be connected or are connected to a vacuum source.
  7. Apparatus according to one of Claims 1 to 5, characterised by a guiding device (70) having a drawing element (74), which is driven in circulation against the direction of rotation (A) of the paddle wheel (10), with carrying elements (76) which are arranged at intervals one behind the other and the path of movement (74') of which crosses the conveying plane (68) of the delivery conveyor (26) at the depositing point (24), it being possible for the carrier elements (76) to be made to act in front of the depositing point (24) against the trailing edges (52) of the printing products (18), and it being possible for the holding device (56) to disengage the carrying elements (76) from the printing products (18).
EP90111429A 1989-07-10 1990-06-18 Device for removing printed products from a rotating driven star wheel of a printing machine Expired - Lifetime EP0407763B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH2567/89 1989-07-10
CH256789 1989-07-10

Publications (2)

Publication Number Publication Date
EP0407763A1 EP0407763A1 (en) 1991-01-16
EP0407763B1 true EP0407763B1 (en) 1993-09-08

Family

ID=4236707

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90111429A Expired - Lifetime EP0407763B1 (en) 1989-07-10 1990-06-18 Device for removing printed products from a rotating driven star wheel of a printing machine

Country Status (5)

Country Link
US (1) US5028045A (en)
EP (1) EP0407763B1 (en)
JP (1) JPH0373748A (en)
DE (1) DE59002623D1 (en)
RU (1) RU1814620C (en)

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EP0673868B1 (en) * 1994-03-18 1999-01-20 Xerox Corporation Integral disk type inverter-stacker and stapler
US5409201A (en) * 1994-03-18 1995-04-25 Xerox Corporation Integral disk type inverter-stacker and stapler with sheet stacking control
US5447303A (en) * 1994-06-20 1995-09-05 Xerox Corporation Sheet inverter apparatus
US5647586A (en) * 1995-12-11 1997-07-15 Heidelberg Harris Inc. Method and apparatus for decelerating a flat product
DE19600374A1 (en) * 1996-01-08 1997-07-10 Koenig & Bauer Albert Ag Device and method for depositing products
US5964461A (en) * 1997-10-03 1999-10-12 Halm Industries Co., Inc. Pusher block assembly for printing press
ATE258533T1 (en) 2000-10-02 2004-02-15 Ferag Ag METHOD AND DEVICE FOR FORMING A DOUBLE SHADE FORMATION FROM PRINTED PRODUCTS
GB2373241A (en) * 2001-03-16 2002-09-18 Rue De Int Ltd Stacking wheel assembly
DE102004016109A1 (en) * 2004-04-01 2005-11-03 Goss International Americas, Inc.(N.D.Ges.D. Staates Delaware) Bucket wheel delivery for a folder
US7694949B2 (en) * 2006-09-18 2010-04-13 Goss International Americas, Inc Custodial lapped stream mechanism
CH703119A1 (en) 2010-05-10 2011-11-15 Ferag Ag Apparatus and method for transporting flexible, sheet-like products.

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DE3521471A1 (en) * 1984-10-22 1986-04-24 Mohndruck Graphische Betriebe GmbH, 4830 Gütersloh METHOD AND DEVICE FOR STACKING COLLECTING LEAF-SHAPED PRODUCTS
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DE3864488D1 (en) * 1987-10-23 1991-10-02 Ferag Ag METHOD AND DEVICE FOR ACCEPTING PRINTED PRODUCTS FROM A RECOVERED PADDLE WHEEL OF A PRINTING MACHINE.

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CN111923616A (en) * 2020-08-04 2020-11-13 山东星宇手套有限公司 Automatic glove printing equipment

Also Published As

Publication number Publication date
JPH0373748A (en) 1991-03-28
DE59002623D1 (en) 1993-10-14
RU1814620C (en) 1993-05-07
EP0407763A1 (en) 1991-01-16
US5028045A (en) 1991-07-02

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