EP0348610A2 - Method and device for stacking folded printed products - Google Patents

Method and device for stacking folded printed products Download PDF

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Publication number
EP0348610A2
EP0348610A2 EP89106110A EP89106110A EP0348610A2 EP 0348610 A2 EP0348610 A2 EP 0348610A2 EP 89106110 A EP89106110 A EP 89106110A EP 89106110 A EP89106110 A EP 89106110A EP 0348610 A2 EP0348610 A2 EP 0348610A2
Authority
EP
European Patent Office
Prior art keywords
printed products
stack
support
stacks
stacking space
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP89106110A
Other languages
German (de)
French (fr)
Other versions
EP0348610A3 (en
EP0348610B1 (en
Inventor
Reinhard Gösslinghoff
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ferag AG
Original Assignee
Ferag AG
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Filing date
Publication date
Application filed by Ferag AG filed Critical Ferag AG
Priority to AT89106110T priority Critical patent/ATE81330T1/en
Publication of EP0348610A2 publication Critical patent/EP0348610A2/en
Publication of EP0348610A3 publication Critical patent/EP0348610A3/en
Application granted granted Critical
Publication of EP0348610B1 publication Critical patent/EP0348610B1/en
Anticipated expiration legal-status Critical
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H31/00—Pile receivers
    • B65H31/30—Arrangements for removing completed piles
    • B65H31/3081—Arrangements for removing completed piles by acting on edge of the pile for moving it along a surface, e.g. by pushing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H31/00—Pile receivers
    • B65H31/04—Pile receivers with movable end support arranged to recede as pile accumulates
    • B65H31/08—Pile receivers with movable end support arranged to recede as pile accumulates the articles being piled one above another
    • 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
    • B65H2301/42—Piling, depiling, handling piles
    • B65H2301/422—Handling piles, sets or stacks of articles
    • B65H2301/4223—Pressing piles
    • 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
    • B65H2301/42—Piling, depiling, handling piles
    • B65H2301/422—Handling piles, sets or stacks of articles
    • B65H2301/4226—Delivering, advancing piles
    • B65H2301/42266—Delivering, advancing piles by acting on edge of the pile for moving it along a surface, e.g. pushing
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S414/00—Material or article handling
    • Y10S414/10—Associated with forming or dispersing groups of intersupporting articles, e.g. stacking patterns
    • Y10S414/12—Associated with forming or dispersing groups of intersupporting articles, e.g. stacking patterns including means pressing against top or end of group

Definitions

  • the present invention relates to a method and an apparatus for forming stacks from folded printed products according to the preamble of claims 1 and 4, respectively.
  • Such a device for stacking folded printed products is known from CH-PS 623 287 and the corresponding US-PS 4,229,134.
  • This has a conveying device, by means of which printed products are conveyed against boundary strips of a pre-stacking space.
  • the pre-stacking space is delimited at the bottom by two slide plates on which the printed products are stacked one above the other to form pre-stacks each made up of a number of printed products.
  • a support table provided by means of a lifting and lowering device is provided below the pre-stacking space and can be pivoted about 180 o about a vertical axis.
  • a first pre-stack formed in the pre-stacking space is placed on the support table raised to a little below the slide plates by moving the slide plates apart.
  • the support table is then lowered by approximately the height of the pre-stack, and the slide plates are pushed against one another again to form a further pre-stack.
  • the support table is swiveled by 180 ° about the vertical axis and then raised in the direction against the slide plates, so that the printed products of the first pre-stack are pressed in order to produce an essentially horizontal one for the next pre-stack to form a zonal circulation. Now the support table is lowered again so that a small gap forms between the first pre-stack and the slide plates arranged above it.
  • the slide plates are opened again and the second pre-stack is placed on the first pre-stack rotated by 180 o .
  • the support table is lowered again, the slide plates are closed, and the two superposed pre-stacks are pressed against the slide plates by lifting the support table. This process is repeated until a pressed finished stack of a certain number of pre-stacks arranged one above the other lies on the support table.
  • the printed products are conveyed with their fold ahead against a stop in the pre-stacking space. At least the printed products that form the uppermost prepack of the finished stack are stacked in the Pre-stacking space is supported approximately centrally by a support element exclusively on the edge region opposite the fold, in such a way that this edge region comes to be at least as high and preferably higher than the opposite fold.
  • the result of this is that the printed products come to rest with their fold at the stop and thus a precisely aligned pre-stack is formed; even if the position of the uppermost printed products of the pre-stack approaches a horizontal plane due to the greater thickness of the folded printed products in the region of the fold.
  • the bottom printed product is only supported approximately in the middle at the edge area opposite the fold, the unsupported parts of the edge area bend downward in the shape of an arch or gable roof on both sides of the support element.
  • the printed products take approximately the shape of the surface of a half pyramid.
  • at least one residual deflection of the printed products of the pre-stack remains. This gives the uppermost partial stack of a finished stack sufficient stability that the finished stack can be conveyed away from the support table without pressing this last stored partial stack without the finished stack threatening to fall apart.
  • FIG. 1 a part of a stacking device is shown in simplified form, FIG. 1 showing a vertical section along the line I-I of FIG. 2.
  • the stacking device has a stacking unit 10 and a packet forming unit 12 arranged underneath.
  • a pre-stacking space 14 of the stacking unit 12, which is open towards the top, is to the side of delimiting elements 16, 18, 20 and below from two, in the direction of the double arrows A, i.e. limited in the product feed direction F, in the area of the pre-stacking space 14 or extendable slide plates 22.
  • the delimiting elements 18 provided on the right and left in the direction of the arrow F and the delimiting element 20 arranged at the end of the pre-stacking space 14 are fixed to a schematically indicated frame 24, while the delimiting element 16 provided at the beginning of the pre-stacking space 14 is attached to an extension arm 26 which can be displaced in the direction of the arrow F an adjusting device 28, which is also attached to the frame 24, is arranged.
  • the limiting element 20 serves as a stop for the folds 30 of the printed products 32 indicated in dash-dot lines in the feed direction F with their fold 30 in front (see in particular FIG. 1).
  • the pre-stacking space 14 can be adapted to the format of the printed products 32.
  • 34 designates a guide plate of a conveyor device (not shown in FIGS. 1 and 2) for feeding the printed products 32.
  • a support element 36 for supporting the printed products 32 is provided exclusively on the edge area 38 opposite the fold.
  • This has one on the frame 24 pivoted, approximately in the middle between the slide plates 22 and the guide plate 34, seen in the feed direction F, the limiting element 16 upstream pivot shaft 40, which is arranged at a distance above the slide plates 22 and whose horizontal pivot axis is perpendicular to the feed direction F.
  • the pivot shaft 40 At the center of the pivot shaft 40, two mutually parallel support arms 42 spaced apart in the direction of the pivot axis are fixed in a rotationally fixed manner, and a drive lever 44 sits on it in a rotationally fixed manner, the free end of which is operatively connected to the push rod 46 of a piston-cylinder unit.
  • the limiting element 16 has in the region of the support arms 42, in FIGS. 1 and 2 not visible, recesses through which the support arms 42 by means of the piston-cylinder unit 48 from their downward and 42 'designated rest position in the with solid lines support position shown and are pivotable back again.
  • the support arms 42 are in their rest position behind the limiting element 16, i.e. outside the pre-stacking space 14. In the support position, the support arms 42 protrude into the stacking space 14 and are directed approximately against the corner E defined by the boundary wall 20 and the slide plate 22 on the left in FIG. 1.
  • an arrangement of the support arms 42 is also conceivable, in which the latter protrude into the support position almost horizontally into the pre-stacking space 14.
  • the packet formation unit 12 has a receiving shaft 52, which is indicated schematically by guide strips 50, in which a support table 54, indicated by dashed lines, can be displaced in the direction of arrow B by means of a lifting and lowering device 56, which is likewise only indicated. Further, a direction indicated by the double arrow C rotator provided by means of which the support table 54 is in each case through 180 ° about a vertical axis 57 back and forth pivotable.
  • lifting and lowering devices 56 and rotating devices are generally known and are described in more detail, for example, in Swiss Patent No. 623,287 or the corresponding US Pat. No. 4,229,134.
  • FIG. 3 and 4 each show a side view of the stacking unit 10 in the direction of the arrows III and IV of FIG. 1, the limiting elements 20 and 16 upstream of the pre-stacking space 14, as seen in the corresponding direction of the arrow, not or only hinted at .
  • the support arms 42 fastened to the pivot shaft 40 shown cut off are shown in their support position, in which they project through the recesses 58 in the limiting element 16 (see FIG. 3) with their free end regions into the pre-stacking space 14.
  • the lowermost printed product 32 lies in the region of its fold 30 on the slide plate 22 removed from the support element 36 (see also FIG. 1) and is supported approximately centrally in its edge region 38 opposite the fold 30 by the support arms 42.
  • This lowermost printed product 32, together with the printed products 32 placed thereon, forms a pre-stack 60.
  • the parts of the edge regions 38 of the printed products 32 projecting to the side of the support arms 42 are bent downward by their own weight.
  • the delimiting elements 18 delimit the stack space 14 on the right and left.
  • the entire stacking device is shown in a very simplified view and in a side view in FIG. 5h at different times when a finished stack 62 shown in FIGS. 5g and h is formed.
  • the conveying device 64 for feeding the printed products 32 in the conveying direction F to the pre-stacking space 14 is indicated by a dash-dotted line.
  • This conveyor device 64 has a rotating traction element (not shown in more detail) with individually controllable grippers arranged one behind the other at a fixed distance, as is known, for example, from EP-B1 0 059 746 and the corresponding US Pat. No. 4,666,143.
  • Each gripper holds a printed product 32 on its leading fold 30, seen in the conveying direction F, the trailing edge region 38 sliding over the guide plate 34 upstream of the pre-stacking space 14. Above the pre-stacking space 14, the relevant gripper of the conveying device 64 is opened, as a result of which the respective printed product 32 falls with its fold 30 against the limiting element 20.
  • a control device 66 controls, as symbolically indicated by dashed lines, the pivoting movement of the support arms 42, the extension and retraction of the slide plates 22 from or into the area of the front stacking space 14, the lifting and lowering device 56 and rotating device for the support table 54 and an ejection member 68 for ejecting the finished stack 62 from the receiving shaft 52.
  • the ejection member 68 is described in detail in CH-PS 623 281 and the corresponding US Pat. No. 4,229,134 .
  • Fig. 5a the support arms 42 are in their support position, the slide plates 22 are moved into the pre-stacking space 14 and the support table 54 is raised to its upper end position, in which between the support surface of the support table 54 and that of the underside of the slide plates 22 only a narrow gap is free.
  • the first printed product 32 which is introduced into the pre-stacking space 14, rests with its folding region 30 on a slide plate 22 and is supported centrally by the support arms 42 at the edge region 38.
  • the further printed products 32 supplied by the conveying device 64 fall on the printed products 32 already located in the pre-stacking space 14 and are stacked to form a pre-stack 60 with a certain number of printed products 32 (cf. FIG. 5b).
  • the support arms 42 are pivoted into their rest position 42 'and the slider 22 in the direction of arrow A (Fig. 1), ie essentially in the same direction in which the bending line 70 (Fig. 3 and 4) extends out of the area of the pre-stacking space 14, whereby the pre-stack 60 falls onto the support table 54. Since the drop height is very small and there is a certain amount of friction or adhesion between the individual printed products 32 in the pre-stack 60, there remains an upward, approximately central bend supply of the printed products 30 in their edge area 38, which is not influenced by the opening of the slide plates. The support table 54 is then lowered, as indicated by the arrow B in FIG.
  • the result of this pressing together is that the residual bending in the printed products 32 in the edge area 38 and the greater thickness in the area of the folds 30 are eliminated.
  • the support table 54 is then lowered to such an extent that a small gap is formed between the upper end of the pre-stack 60 and the underside of the slide plates 22.
  • the support arms 42 are again pivoted into their rest position 42' and the slide plates 22 are extended, whereby the second pre-stack 60 'falls on the first pre-stack 60; these two pre-stacks 60, 60 'are now rotated 180 o against each other.
  • Fig. 5e is then Send the support table 54 lowered in the direction of arrow B until the upper end of the second pre-stack 60 'comes to lie below the two slide plates 22 and then rotated in the direction of arrow C, ie in the opposite direction, by 180 o .
  • the stacking unit 10 is ready for the formation of a further pre-stack 60 ⁇ (see FIG. 5f).
  • the two superposed pre-stacks 60, 60 ' are now pressed together, so that the upper end of the pre-stack 60' forms a substantially horizontal support for the third pre-stack 60 '.
  • the support table 54 is then lowered for the takeover of the third preliminary stack 60 ⁇ , as shown in FIG. 5f.
  • the support table 54 is completely lowered without previously compressing the finished stack 62 consisting of the three pre-stacks 60, 60', 60 ⁇ (see FIG. 5g).
  • the support table 54 is not rotated by 180 ° , so that the folds 30 of all printed products 32 lie one above the other in the finished stack 62. It is also possible that when superimposing the printed products 32 in the pre-stacking space 14 to the pre-stacking 60, 60 'located in the finished stack 62, the support arms 42 remain in their rest position 42' and so the bottom printed product 32 with its entire underside on the slide plates 22 comes to circulation. However, this does not ensure that the folds 30 rest securely on the delimitation element 20, which can result in the printed products 32 not lying one above the other in a precisely aligned manner. In any case, the printed products 32, which are stacked on top of the top stack 60 'of the finished stack 62, are supported by means of the support arms 42.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pile Receivers (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
  • Air Bags (AREA)
  • Discharge By Other Means (AREA)
  • Forming Counted Batches (AREA)
  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)

Abstract

The stacking apparatus consists of the stacking unit (10) and the package forming unit (12) arranged below it. Seen in the direction (F), there is arranged at the end of the prestacking space (14) a boundary element (20) which serves as a stop for the folds (30) of the printed products (32). While the printed products (32), fed in the feeding direction (F) with their fold (30) in front, are being placed on top of each other to form a prestack, said printed products are supported approximately centrally by the support element (36) on their edge region (38) opposite the fold (30). For placing the prestack thus formed on the resting table (54), the support arms (42) are swivelled into their position of rest (42') and the slide plates (22) are moved out of the region of the stacking space (14). In this case, a residual curvature of the printed products (32) in their edge region (38) is maintained, which improves the stability of the stack. <IMAGE>

Description

Die vorliegende Erfindung betrifft ein Verfahren bzw. eine Vorrichtung zum Bilden von Stapeln aus gefalteten Druckereiprodukten gemäss dem Oberbegriff des Anspruchs 1 bzw. 4.4. The present invention relates to a method and an apparatus for forming stacks from folded printed products according to the preamble of claims 1 and 4, respectively.

Eine solche Vorrichtung zum Stapeln von gefalteten Druckereiprodukten ist aus der CH-PS 623 287 bzw. der entsprechenden US-PS 4,229,134 bekannt. Diese weist eine Fördereinrichtung auf, mittels welcher Druckereiprodukte gegen Begrenzungsleisten eines Vorstapelraumes gefördert werden. Der Vorstapelraum ist unten von zwei Schieber­platten begrenzt, auf welchen die Druckereiprodukte zu jeweils aus einer Anzahl von Druckereiprodukten gebilde­ten Vorstapeln übereinander abgelegt werden. Unterhalb des Vorstapelraumes ist ein mittels einer Hebe- und Senk­einrichtung versehener Auflagetisch vorgesehen, welcher um jeweils 180o um eine vertikale Achse schwenkbar ist. Ein erster im Vorstapelraum gebildeter Vorstapel wird auf den bis wenig unterhalb die Schieberplatten angehobenen Auflagetisch durch Auseinanderfahren der Schieberplatten abgelegt. Anschliessend wird der Auflagetisch um ungefähr die Höhe des Vorstapels abgesenkt, und zur Bildung eines weiteren Vorstapels werden die Schieberplatten wieder ge­geneinandergeschoben. Der Auflagetisch wird um 180o um die vertikale Achse geschwenkt und anschliessend in Rich­tung gegen die Schieberplatten angehoben, so dass die Druckereiprodukte des ersten Vorstapels gepresst werden, um für den nächsten Vorstapel eine im wesentlichen hori­ zontale Auflage zu bilden. Nun wird der Auflagetisch wie­der so weit abgesenkt, dass sich zwischen dem ersten Vor­stapel und den darüber angeordneten Schieberplatten ein kleiner Spalt bildet. Sobald nun im Vorstapelraum der zweite Vorstapel fertig ist, werden die Schieberplatten wieder geöffnet und der zweite Vorstapel auf den ersten um 180o gedrehten Vorstapel abgelegt. Nun wird der Aufla­getisch wieder abgesenkt, die Schieberplatten werden ge­schlossen, und die beiden übereinanderliegenden Vorstapel werden durch Anheben des Auflagetisches gegen die Schie­berplatten gepresst. Dieser Vorgang wiederholt sich, bis auf dem Auflagetisch ein gepresster Fertigstapel aus einer bestimmten Anzahl übereinander angeordneten Vorsta­peln liegt. Mit dieser bekannten Vorrichtung können wohl Druckereiprodukte zu Fertigstapeln übereinandergelegt werden, welche die notwendige Stabilität für den Weg­transport aufweisen, was aber eine bestimmte Verarbei­tungszeit erfordert.Such a device for stacking folded printed products is known from CH-PS 623 287 and the corresponding US-PS 4,229,134. This has a conveying device, by means of which printed products are conveyed against boundary strips of a pre-stacking space. The pre-stacking space is delimited at the bottom by two slide plates on which the printed products are stacked one above the other to form pre-stacks each made up of a number of printed products. A support table provided by means of a lifting and lowering device is provided below the pre-stacking space and can be pivoted about 180 o about a vertical axis. A first pre-stack formed in the pre-stacking space is placed on the support table raised to a little below the slide plates by moving the slide plates apart. The support table is then lowered by approximately the height of the pre-stack, and the slide plates are pushed against one another again to form a further pre-stack. The support table is swiveled by 180 ° about the vertical axis and then raised in the direction against the slide plates, so that the printed products of the first pre-stack are pressed in order to produce an essentially horizontal one for the next pre-stack to form a zonal circulation. Now the support table is lowered again so that a small gap forms between the first pre-stack and the slide plates arranged above it. As soon as the second pre-stack is ready in the pre-stacking room, the slide plates are opened again and the second pre-stack is placed on the first pre-stack rotated by 180 o . Now the support table is lowered again, the slide plates are closed, and the two superposed pre-stacks are pressed against the slide plates by lifting the support table. This process is repeated until a pressed finished stack of a certain number of pre-stacks arranged one above the other lies on the support table. With this known device, printed products can be superimposed into finished stacks which have the necessary stability for transport away, but which requires a certain processing time.

Es ist daher Aufgabe der vorliegenden Erfindung, ein Ver­fahren vorzuschlagen bzw. eine Vorrichtung zu schaffen, mit dem bzw. mit welcher gefaltete Druckereiprodukte in kürzerer Verarbeitungszeit zu qualitativ hochstehenden, standfesten Fertigstapeln gestapelt werden können.It is therefore an object of the present invention to propose a method or to create a device with which or with which folded printed products can be stacked in a shorter processing time to produce high-quality, stable finished stacks.

Diese Aufgabe wird durch die Merkmale des kennzeichnenden Teiles des Anspruchs 1 bzw. 4 gelöst.This object is solved by the features of the characterizing part of claims 1 and 4, respectively.

Die Druckereiprodukte werden mit ihrem Falz voraus gegen einen Anschlag des Vorstapelraumes gefördert. Dabei wer­den mindestens die, den obersten Vorstapel des Fertigsta­pels bildenden Druckereiprodukte während des Stapelns im Vorstapelraum durch ein Abstützelement ausschliesslich am dem Falz gegenüberliegenden Randbereich etwa mittig abge­stützt, und zwar so, dass dieser Randbereich mindestens gleich hoch und vorzugsweise höher zu liegen kommt, als der gegenüberliegende Falz. Dies hat zur Folge, dass die Druckereiprodukte mit ihrem Falz am Anschlag zur Anlage kommen und somit ein genau ausgerichteter Vorstapel ge­bildet wird; dies auch dann, wenn sich die Lage der ober­sten Druckereiprodukte des Vorstapels infolge der grösse­ren Dicke der gefalteten Druckereiprodukte im Bereich des Falzes einer Horizontalebene nähert. Da das jeweils un­terste Druckereiprodukt am dem Falz gegenüberliegenden Randbereich nur etwa in der Mitte abgestützt wird, biegen sich die nicht abgestützten Teile des Randbereiches beid­seitig des Abstützelementes bogen- oder satteldachförmig gegen unten. Dies hat zur Folge, dass die Druckereipro­dukte etwa die Form der Oberfläche einer halben Pyramide einnehmen. Dies ergibt dem Vorstapel eine besonders gute Stabilität, so dass die Druckereiprodukte nicht in Rich­tung des Falzes abgleiten können. Beim Ablegen eines sol­chen Vorstapels auf den Auflagetisch bzw. auf die bereits dort vorhandenen Druckereiprodukte bleibt mindestens eine Restausbiegung der Druckereiprodukte des Vorstapels er­halten. Diese vermittelt dem obersten Teilstapel eines Fertigstapels genügend Stabilität, dass der Fertigstapel auch ohne Pressen dieses zuletzt abgelegten Teilstapels ab dem Auflagetisch weggefördert werden kann, ohne dass der Fertigstapel auseinanderzufallen droht.The printed products are conveyed with their fold ahead against a stop in the pre-stacking space. At least the printed products that form the uppermost prepack of the finished stack are stacked in the Pre-stacking space is supported approximately centrally by a support element exclusively on the edge region opposite the fold, in such a way that this edge region comes to be at least as high and preferably higher than the opposite fold. The result of this is that the printed products come to rest with their fold at the stop and thus a precisely aligned pre-stack is formed; even if the position of the uppermost printed products of the pre-stack approaches a horizontal plane due to the greater thickness of the folded printed products in the region of the fold. Since the bottom printed product is only supported approximately in the middle at the edge area opposite the fold, the unsupported parts of the edge area bend downward in the shape of an arch or gable roof on both sides of the support element. As a result, the printed products take approximately the shape of the surface of a half pyramid. This gives the pre-stack a particularly good stability so that the printed products cannot slide in the direction of the fold. When such a pre-stack is placed on the support table or on the printed products already present there, at least one residual deflection of the printed products of the pre-stack remains. This gives the uppermost partial stack of a finished stack sufficient stability that the finished stack can be conveyed away from the support table without pressing this last stored partial stack without the finished stack threatening to fall apart.

Aus der US-PS 3,507,492 ist nun eine Einrichtung zum Sta­peln von mit ihrem Falz voraus zugeführten Druckereipro­dukten bekannt, bei der an einem umlaufenden Zugorgan Auflagen angeordnet sind, die von oben nach unten am aus­laufseitigen Ende der Fördereinrichtung vorbei bewegt werden. Jede Auflage besteht aus parallelen, L-förmigen Bügeln, deren eine Schenkel einen Anschlag für die Falze der Druckereiprodukte bilden. Der jeweils mittlere Bügel weist auf seinem andern, gegenüber dem horizontalen leicht geneigten Schenkel eine gegenüber den Schenkeln der andern Bügel erhöhtes Auflageelement auf. Die ersten, auf die Auflage nacheinander abgelegten Druckereiprodukte werden somit geringfügig dachförmig gebogen. Im Zuge des Senkens der Auflage kommt das unterste Druckereiprodukt mit seinem, dem Falz gegenüberliegenden Randbereich etwa mittig an einem ortsfesten Abstützelement zur Auflage, wobei die dachförmige Ausbiegung verstärkt wird, um das Einknicken der Druckereiprodukte zu verhindern. Das damit verbundene Anheben der Randbereiche gegenüber den Falzen stellt ein sicheres Anliegen der Falze am Anschlag si­cher. Im Zuge der Weiterbewegung der Auflage erfolgt an jedem Druckereiprodukt eine nur noch stirnseitige Ab­stützung am Falz und an diesem gegenüberliegenden Rand. Die starke Ausbiegung der Druckereiprodukte verhindert dabei ein Einknicken infolge der durch diese Abstützungs­art erheblichen Druckkräfte. Beim Ablaufen der Druckerei­produkte ab dem Abstützelement wird jedes Druckereipro­dukt an seinem dem Falz gegenüberliegenden Rand einzeln freigegeben, so dass es unter Aufhebung der starken Aus­biegung wieder auf die Bügel bzw. auf die bereits darauf liegenden Druckereiprodukte hinunterschwenken kann. Der fertige Stapel gelangt im Zuge der weiteren Absenkung der Auflage auf eine Rollenbahn, mittels welcher er weggeför­dert wird. Mit dieser bekannten Vorrichtung können wohl auf der Seite der Falze ausgerichtete Stapel gebildet werden. Allerdings ist die Stapelhöhe beschränkt, da überhaupt keine weiteren Massnahmen getroffen werden, um dem Stapel für den Wegtransport eine bessere Stabilität zu geben. So ist es mit dieser Vorrichtung nicht möglich, die grössere Dicke der Druckereiprodukte im Bereich der Falze durch Pressen und/oder gegeneinander um 180o ver­drehtes Aufeinanderstapeln von Teilstapeln zu beseitigen. Ebenso wird auch die Ausbiegung der Druckereiprodukte für den Wegtransport wieder aufgehoben.From US Pat. No. 3,507,492, a device for stacking printed products fed in with their fold ahead is now known, in the case of a rotating traction element Pads are arranged that are moved from top to bottom past the outlet end of the conveyor. Each edition consists of parallel, L-shaped brackets, one leg of which forms a stop for the folds of the printed products. The middle bracket in each case has on its other, with respect to the horizontal slightly inclined leg, a raised element compared to the legs of the other bracket. The first printed products placed one after the other on the support are thus bent slightly roof-shaped. In the course of lowering the support, the lowermost printed product comes to rest with its edge region opposite the fold approximately in the middle of a stationary support element, the roof-shaped bend being reinforced to prevent the printed products from buckling. The associated lifting of the edge areas relative to the folds ensures that the folds rest securely against the stop. In the course of the further movement of the edition, only a frontal support is provided on the fold and on the opposite edge of each printed product. The strong deflection of the printed products prevents buckling due to the considerable pressure forces caused by this type of support. When the printed products run off the support element, each printed product is released individually at its edge opposite the fold, so that it can swivel back onto the brackets or onto the printed products already lying thereon, eliminating the strong deflection. In the course of the further lowering of the support, the finished stack reaches a roller conveyor by means of which it is conveyed away. With this known device, aligned stacks can be formed on the fold side. However, the stack height is limited because no further measures are taken at all to give the stack better stability when it is transported away. Thus, it is not possible with this device, against each other to eliminate the greater thickness of the printed products in the region of the folds by pressing and / or 180 o twisted stacking of sub-stacks. Likewise, the deflection of the printed products for transport away is canceled again.

Bevorzugte Ausführungsformen des Verfahrens und Ausbil­dungsformen der Vorrichtung sind in den weiteren Ansprü­chen angegeben.Preferred embodiments of the method and embodiments of the device are specified in the further claims.

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

  • Fig. 1 in einem Vertikalschnitt einen Teil einer Stapeleinrichtung,
  • Fig. 2 in Draufsicht einen Teil der Stapelein­richtung gemäss Fig. 1,
  • Fig. 3 und 4 in Seitenansicht in Richtung der Pfeile III bzw. IV der Fig. 1, einen Teil der Stapeleinrichtung in vereinfachter Dar­stellung, und
  • Fig. 5a bis 5h in Ansicht bzw. Seitenansicht die stark vereinfacht dargestellte Stapeleinrich­tung gemäss den Fig. 1 bis 4 zu verschie­denen Zeitpunkten bei der Bildung eines Stapels.
The invention will now be described with reference to an embodiment shown in the drawing. It shows purely schematically:
  • 1 is a vertical section of part of a stacking device,
  • 2 is a top view of part of the stacking device according to FIG. 1,
  • 3 and 4 in side view in the direction of arrows III and IV of FIG. 1, part of the stacking device in a simplified representation, and
  • 5a to 5h in a view or side view of the stacking device according to FIGS. 1 to 4, shown in a highly simplified manner, at different times when a stack is being formed.

In den Fig. 1 und 2 ist ein Teil einer Stapeleinrichtung vereinfacht dargestellt, wobei Fig. 1 einen Vertikal­schnitt entlang der Linie I-I der Fig. 2 zeigt. Die Sta­peleinrichtung weist eine Stapeleinheit 10 und eine dar­unter angeordnete Paketbildeeinheit 12 auf. Ein gegen oben offener Vorstapelraum 14 der Stapeleinheit 12 ist seitlich von Begrenzungselementen 16, 18, 20 und unten von zwei, in Richtung der Doppelpfeile A, d.h. in Pro­duktezuführrichtung F, in den Bereich des Vorstapelrau­mes 14 ein- bzw. aus diesem ausfahrbaren Schieberplatten 22 begrenzt. Die in Pfeilrichtung F gesehen rechts und links vorgesehenen Begrenzungselemente 18 sowie das am Ende des Vorstapelraumes 14 angeordnete Begrenzungsele­ment 20 sind an einem schematisch angedeuteten Rahmen 24 fixiert, während das am Anfang des Vorstapelraumes 14 vorgesehene Begrenzungselement 16 an einem in und ent­gegen Pfeilrichtung F verschiebbaren Ausleger 26 einer ebenfalls am Rahmen 24 befestigten Verstelleinrichtung 28 angeordnet ist. Das Begrenzungselement 20 dient als Anschlag für die Falze 30 der in Zuführrichtung F mit ihrem Falz 30 voraus zugeführten strichpunktiert ange­deuteten Druckereiprodukte 32 (s. insbesondere Fig. 1). Mit der Verstelleinrichtung 28 lässt sich der Vorstapel­raum 14 dem Format der Druckereiprodukte 32 anpassen. Mit 34 ist ein Leitblech einer in den Figuren 1 und 2 nicht näher gezeigten Fördereinrichtung zum Zuführen der Druckereiprodukte 32 bezeichnet.1 and 2, a part of a stacking device is shown in simplified form, FIG. 1 showing a vertical section along the line I-I of FIG. 2. The stacking device has a stacking unit 10 and a packet forming unit 12 arranged underneath. A pre-stacking space 14 of the stacking unit 12, which is open towards the top, is to the side of delimiting elements 16, 18, 20 and below from two, in the direction of the double arrows A, i.e. limited in the product feed direction F, in the area of the pre-stacking space 14 or extendable slide plates 22. The delimiting elements 18 provided on the right and left in the direction of the arrow F and the delimiting element 20 arranged at the end of the pre-stacking space 14 are fixed to a schematically indicated frame 24, while the delimiting element 16 provided at the beginning of the pre-stacking space 14 is attached to an extension arm 26 which can be displaced in the direction of the arrow F an adjusting device 28, which is also attached to the frame 24, is arranged. The limiting element 20 serves as a stop for the folds 30 of the printed products 32 indicated in dash-dot lines in the feed direction F with their fold 30 in front (see in particular FIG. 1). With the adjusting device 28, the pre-stacking space 14 can be adapted to the format of the printed products 32. 34 designates a guide plate of a conveyor device (not shown in FIGS. 1 and 2) for feeding the printed products 32.

Im Anfangsbereich des Vorstapelraumes 14 ist ein Ab­stützelement 36 zum Abstützen der Druckereiprodukte 32 ausschliesslich an dem Falz gegenüberliegenden Randbe­reich 38 vorgesehen. Dieses weist eine am Rahmen 24 schwenkbar gelagerte, etwa mittig zwischen den Schieber­platten 22 und dem Leitblech 34 angeordnete, in Zuführ­richtung F gesehen, dem Begrenzungselement 16 vorgela­gerte Schwenkwelle 40 auf, die in einem Abstand oberhalb der Schieberplatten 22 angeordnet ist und deren horizon­tale Schwenkachse rechtwinklig zur Zuführrichtung F ver­läuft. An der Schwenkwelle 40 sind etwa mittig zwei zu­einander parallele, in Richtung der Schwenkachse vonein­ander beabstandete Stützarme 42 drehfest fixiert, und auf ihr sitzt drehfest ein Antriebshebel 44, dessen freies Ende mit der Schubstange 46 eines Kolben-Zylin­deraggregates wirkverbunden ist. Das Begrenzungselement 16 weist im Bereich der Stützarme 42, in den Fig. 1 und 2 nicht sichtbare, Ausnehmungen auf, durch welche die Abstützarme 42 mittels des Kolben-Zylinderaggregates 48 aus ihrer gegen unten gerichteten und mit 42′ bezeichne­ten Ruhestellung in die mit ausgezogenen Strichen darge­stellte Abstützstellung und wieder zurück schwenkbar sind.In the initial area of the pre-stacking space 14, a support element 36 for supporting the printed products 32 is provided exclusively on the edge area 38 opposite the fold. This has one on the frame 24 pivoted, approximately in the middle between the slide plates 22 and the guide plate 34, seen in the feed direction F, the limiting element 16 upstream pivot shaft 40, which is arranged at a distance above the slide plates 22 and whose horizontal pivot axis is perpendicular to the feed direction F. At the center of the pivot shaft 40, two mutually parallel support arms 42 spaced apart in the direction of the pivot axis are fixed in a rotationally fixed manner, and a drive lever 44 sits on it in a rotationally fixed manner, the free end of which is operatively connected to the push rod 46 of a piston-cylinder unit. The limiting element 16 has in the region of the support arms 42, in FIGS. 1 and 2 not visible, recesses through which the support arms 42 by means of the piston-cylinder unit 48 from their downward and 42 'designated rest position in the with solid lines support position shown and are pivotable back again.

Wie Fig. 1 zeigt, befinden sich die Stützarme 42 in ihrer Ruhestellung hinter dem Begrenzungselement 16, d.h. ausserhalb des Vorstapelraumes 14. In der Abstütz­stellung ragen die Stützarme 42 in den Stapelraum 14 hinein und sind dabei etwa gegen die durch die Begren­zungswand 20 und die in Fig. 1 linke Schieberplatte 22 festgelegte Ecke E gerichtet. Es ist aber auch eine An­ordnung der Stützarme 42 denkbar, bei der letztere in die Abstützstellung nahezu in horizontale Richtung in den Vorstapelraum 14 hineinragen.As shown in Fig. 1, the support arms 42 are in their rest position behind the limiting element 16, i.e. outside the pre-stacking space 14. In the support position, the support arms 42 protrude into the stacking space 14 and are directed approximately against the corner E defined by the boundary wall 20 and the slide plate 22 on the left in FIG. 1. However, an arrangement of the support arms 42 is also conceivable, in which the latter protrude into the support position almost horizontally into the pre-stacking space 14.

Die Paketbildeeinheit 12 weist einen durch Führungslei­sten 50 schematisch angedeuteten Aufnahmeschacht 52 auf, in welchem ein gestrichelt angedeuteter Auflagetisch 54 mittels einer, ebenfalls nur andeutungsweise angegebe­nen, Hebe- und Senkeinrichtung 56 in Pfeilrichtung B verschiebbar ist. Des weiteren ist eine durch den Dop­pelpfeil C angedeutete Dreheinrichtung vorgesehen, mit­tels welcher der Auflagetisch 54 jeweils um 180o um eine senkrechte Achse 57 hin und zurück schwenkbar ist. Sol­che Hebe- und Senkeinrichtungen 56 sowie Dreheinrichtun­gen sind allgemein bekannt und beispielsweise in der CH-PS 623 287 bzw. der entsprechenden US-PS 4,229,134 näher beschrieben.The packet formation unit 12 has a receiving shaft 52, which is indicated schematically by guide strips 50, in which a support table 54, indicated by dashed lines, can be displaced in the direction of arrow B by means of a lifting and lowering device 56, which is likewise only indicated. Further, a direction indicated by the double arrow C rotator provided by means of which the support table 54 is in each case through 180 ° about a vertical axis 57 back and forth pivotable. Such lifting and lowering devices 56 and rotating devices are generally known and are described in more detail, for example, in Swiss Patent No. 623,287 or the corresponding US Pat. No. 4,229,134.

Die Fig. 3 und 4 zeigen je eine Seitenansicht der Sta­peleinheit 10 in Richtung der Pfeile III bzw. IV der Fig. 1, wobei die, in der entsprechenden Pfeilrichtung gesehen, dem Vorstapelraum 14 vorgelagerten Begrenzungs­elemente 20 bzw. 16 nicht oder nur andeutungsweise dar­gestellt sind. Die an der abgeschnitten gezeigten Schwenkwelle 40 befestigten Stützarme 42 sind in ihrer Abstützstellung gezeigt, in welcher sie durch die Aus­nehmungen 58 im Begrenzungselement 16 (s. Fig. 3) hin­durch mit ihren freien Endbereichen in den Vorstapelraum 14 vorstehen. Das unterste Druckereiprodukt 32 liegt im Bereich seines Falzes 30 auf der vom Abstützelement 36 entfernten Schieberplatte 22 auf (s. auch Fig. 1) und wird an seinem, dem Falz 30 gegenüberliegenden Randbe­reich 38 durch die Abstützarme 42 etwa mittig abge­stützt. Dieses unterste Druckereiprodukt 32 bildet zu­sammen mit den darauf abgelegten Druckereiprodukten 32 einen Vorstapel 60. Die seitlich der Stützarme 42 vor­stehenden Teile der Randbereiche 38 der Druckereiproduk­te 32 sind durch ihr Eigengewicht nach unten gebogen.3 and 4 each show a side view of the stacking unit 10 in the direction of the arrows III and IV of FIG. 1, the limiting elements 20 and 16 upstream of the pre-stacking space 14, as seen in the corresponding direction of the arrow, not or only hinted at . The support arms 42 fastened to the pivot shaft 40 shown cut off are shown in their support position, in which they project through the recesses 58 in the limiting element 16 (see FIG. 3) with their free end regions into the pre-stacking space 14. The lowermost printed product 32 lies in the region of its fold 30 on the slide plate 22 removed from the support element 36 (see also FIG. 1) and is supported approximately centrally in its edge region 38 opposite the fold 30 by the support arms 42. This lowermost printed product 32, together with the printed products 32 placed thereon, forms a pre-stack 60. The parts of the edge regions 38 of the printed products 32 projecting to the side of the support arms 42 are bent downward by their own weight.

Dadurch nehmen sie nahezu die Form der Oberfläche einer halben Pyramide ein, wodurch die Druckereiprodukte 32 wesentlich versteift sind. Wie in den Fig. 3 und 4 be­sonders gut erkennbar, begrenzen die Begrenzungselemente 18 rechts und links den Stapelraum 14. Mit 34 ist das Leitblech der Fördereinrichtung bezeichnet.As a result, they almost assume the shape of the surface of a half pyramid, as a result of which the printed products 32 are substantially stiffened. As can be seen particularly well in FIGS. 3 and 4, the delimiting elements 18 delimit the stack space 14 on the right and left.

In den Fig. 5a bis 5g ist die gesamte Stapeleinrichtung in Ansicht und in Fig. 5h in Seitenansicht stark verein­facht zu verschiedenen Zeitpunkten bei der Bildung eines in den Fig. 5g und h gezeigten Fertigstapels 62 darge­stellt. In der Fig. 5a ist die Fördereinrichtung 64 zum Zuführen der Druckereiprodukte 32 in Förderrichtung F zum Vorstapelraum 14 mit einer strichpunktierten Linie angedeutet. Diese Fördereinrichtung 64 weist ein nicht näher dargestelltes, umlaufendes Zugorgan mit daran in einem festen Abstand hintereinander angeordneten einzeln steuerbaren Greifern auf, wie dies beispielsweise aus der EP-B1 0 059 746 bzw. der entsprechenden US-PS 4,666,143 bekannt ist. Jeder Greifer hält ein Druckerei­produkt 32 an seinem, in Förderrichtung F gesehen, vor­laufenden Falz 30, wobei der nachlaufende Randbereich 38 über das dem Vorstapelraum 14 vorgelagerte Leitblech 34 gleitet. Oberhalb des Vorstapelraumes 14 wird der be­treffende Greifer der Fördereinrichtung 64 geöffnet, wo­durch das jeweilige Druckereiprodukt 32 mit seinem Falz 30 voraus gegen das Begrenzungselement 20 fällt.5a to 5g the entire stacking device is shown in a very simplified view and in a side view in FIG. 5h at different times when a finished stack 62 shown in FIGS. 5g and h is formed. 5a, the conveying device 64 for feeding the printed products 32 in the conveying direction F to the pre-stacking space 14 is indicated by a dash-dotted line. This conveyor device 64 has a rotating traction element (not shown in more detail) with individually controllable grippers arranged one behind the other at a fixed distance, as is known, for example, from EP-B1 0 059 746 and the corresponding US Pat. No. 4,666,143. Each gripper holds a printed product 32 on its leading fold 30, seen in the conveying direction F, the trailing edge region 38 sliding over the guide plate 34 upstream of the pre-stacking space 14. Above the pre-stacking space 14, the relevant gripper of the conveying device 64 is opened, as a result of which the respective printed product 32 falls with its fold 30 against the limiting element 20.

Eine Steuereinrichtung 66 steuert, wie dies mit gestri­chelten Linien symbolisch angedeutet ist, die Schwenkbe­wegung der Stützarme 42, das Aus- und Einfahren der Schieberplatten 22 aus dem bzw. in den Bereich des Vor­ stapelraumes 14, die Hebe- und Senkeinrichtung 56 sowie Dreheinrichtung für den Auflagetisch 54 und ein Aus­stossorgan 68 zum Ausstossen des Fertigstapels 62 aus dem Aufnahmeschacht 52. Das Ausstossorgan 68 ist in der CH-PS 623 281 bzw. der entsprechenden US-PS 4,229,134 ausführlich beschrieben.A control device 66 controls, as symbolically indicated by dashed lines, the pivoting movement of the support arms 42, the extension and retraction of the slide plates 22 from or into the area of the front stacking space 14, the lifting and lowering device 56 and rotating device for the support table 54 and an ejection member 68 for ejecting the finished stack 62 from the receiving shaft 52. The ejection member 68 is described in detail in CH-PS 623 281 and the corresponding US Pat. No. 4,229,134 .

In der Fig. 5a befinden sich die Stützarme 42 in ihrer Abstützstellung, die Schieberplatten 22 sind in den Vor­stapelraum 14 eingefahren und der Auflagetisch 54 ist in seine obere Endstellung angehoben, in welcher zwischen der Auflagefläche des Auflagetisches 54 und der der Un­terseite der Schieberplatten 22 nur ein schmaler Spalt frei ist. Das erste, in den Vorstapelraum 14 eingeführte Druckereiprodukt 32, liegt mit seinem Falzbereich 30 auf einer Schieberplatte 22 auf und ist am Randbereich 38 mittig von den Stützarmen 42 abgestützt. Die weiteren, von der Fördereinrichtung 64 zugeführten Druckereipro­dukte 32 fallen auf die sich bereits im Vorstapelraum 14 befindenden Druckereiprodukte 32 und werden zu einem Vorstapel 60 mit einer bestimmten Anzahl von Druckerei­produkten 32 gestapelt (vgl. Fig. 5b). Sobald ein kom­pletter Vorstapel 60 gebildet ist, werden die Stützarme 42 in ihre Ruhestellung 42′ verschwenkt und die Schieber 22 in Pfeilrichtung A (Fig. 1), d.h. im wesentlichen in derselben Richtung, in der die Ausbiegelinie 70 (Fig. 3 und 4) verläuft, aus dem Bereich des Vorstapelraumes 14 ausgefahren, wodurch der Vorstapel 60 auf den Auflage­tisch 54 fällt. Da die Fallhöhe sehr gering ist, und zwischen den einzelnen Druckereiprodukten 32 im Vorsta­pel 60 eine gewisse Reibung bzw. Haftung vorhanden ist, bleibt eine nach oben gerichtete, etwa mittige Ausbie­ gung der Druckereiprodukte 30 in ihrem Randbereich 38 erhalten, die durch das Oeffnen der Schieberplatten nicht beeinflusst wird. Anschliessend wird der Auflage­tisch 54 abgesenkt, wie dies in der Fig. 5b mit dem Pfeil B angedeutet ist, bis das obere Ende des Vorsta­pels 60 unterhalb die Schieberplatten 22 zu liegen kommt (s. Fig. 5c). Dann werden gleichzeitig der Auflagetisch 54 zusammen mit dem darauf angeordneten Vorstapel 60 in Pfeilrichtung C um 180o gedreht, die beiden Schieber­platten 22 wieder gegeneinander in den Vorstapelraum 14 eingefahren und die Stützarme 42 in ihre Abstützstellung verschwenkt. Nun wird, wie dies weiter oben beschrieben und in der Fig. 5d angedeutet ist, im Vorstapelraum 14 ein weiter Vorstapel 60′ gebildet, während durch Anheben des Auflagetisches 54 der erste Vorstapel 60 zwischen dem Auflagetisch 54 und den Schieberplatten 22 zusammen­gepresst wird. Dieses Zusammenpressen hat zur Folge, dass die Restbiegung in den Druckereiprodukten 32 im Randbereich 38 sowie die grössere Dicke im Bereich der Falze 30 aufgehoben wird. Anschliessend wird der Aufla­getisch 54 soweit abgesenkt, dass sich zwischen dem obe­ren Ende des Vorstapels 60 und der Unterseite der Schie­berplatten 22 ein kleiner Spalt bildet. Sobald nun genü­gend Druckereiprodukte 32 im Vorstapelraum 14 zum zwei­ten Vorstapel 60′ übereinander abgelegt sind, werden die Stützarme 42 wiederum in ihre Ruhestellung 42′ ver­schwenkt und die Schieberplatten 22 ausgefahren, wodurch der zweite Vorstapel 60′ auf den ersten Vorstapel 60 fällt; diese beiden Vorstapel 60, 60′ sind nun um 180o gegeneinander verdreht.In Fig. 5a, the support arms 42 are in their support position, the slide plates 22 are moved into the pre-stacking space 14 and the support table 54 is raised to its upper end position, in which between the support surface of the support table 54 and that of the underside of the slide plates 22 only a narrow gap is free. The first printed product 32, which is introduced into the pre-stacking space 14, rests with its folding region 30 on a slide plate 22 and is supported centrally by the support arms 42 at the edge region 38. The further printed products 32 supplied by the conveying device 64 fall on the printed products 32 already located in the pre-stacking space 14 and are stacked to form a pre-stack 60 with a certain number of printed products 32 (cf. FIG. 5b). Once a complete pre-stack 60 is formed, the support arms 42 are pivoted into their rest position 42 'and the slider 22 in the direction of arrow A (Fig. 1), ie essentially in the same direction in which the bending line 70 (Fig. 3 and 4) extends out of the area of the pre-stacking space 14, whereby the pre-stack 60 falls onto the support table 54. Since the drop height is very small and there is a certain amount of friction or adhesion between the individual printed products 32 in the pre-stack 60, there remains an upward, approximately central bend supply of the printed products 30 in their edge area 38, which is not influenced by the opening of the slide plates. The support table 54 is then lowered, as indicated by the arrow B in FIG. 5b, until the upper end of the pre-stack 60 comes to lie below the slide plates 22 (see FIG. 5c). Then, at the same time the support table 54 can be rotated together with the disposed thereon prestack 60 in the direction of arrow C to 180 o, the two slide plates 22 back against each inserted into the preliminary stacking space 14 and the support arms pivoted to its support position 42nd Now, as described above and indicated in Fig. 5d, a further pre-stack 60 'is formed in the pre-stacking space 14', while the first pre-stack 60 is pressed between the support table 54 and the slide plates 22 by lifting the support table 54. The result of this pressing together is that the residual bending in the printed products 32 in the edge area 38 and the greater thickness in the area of the folds 30 are eliminated. The support table 54 is then lowered to such an extent that a small gap is formed between the upper end of the pre-stack 60 and the underside of the slide plates 22. As soon as enough printed products 32 in the pre-stacking space 14 for the second pre-stack 60 'are placed one above the other, the support arms 42 are again pivoted into their rest position 42' and the slide plates 22 are extended, whereby the second pre-stack 60 'falls on the first pre-stack 60; these two pre-stacks 60, 60 'are now rotated 180 o against each other.

Wie dies in der Fig. 5e dargestellt ist, wird anschlies­ send der Auflagetisch 54 in Pfeilrichtung B soweit abge­senkt, bis das obere Ende des zweiten Vorstapels 60′ un­terhalb die beiden Schieberplatten 22 zu liegen kommt und anschliessend in Pfeilrichtung C, d.h. in Gegenrich­tung, um 180o gedreht. Durch erneutes Einschieben der beiden Schieberplatten 22 in den Vorstapelraum 14 und Ueberführen der Stützarme 42 in ihre Abstützstellung ist die Stapeleinheit 10 für die Bildung eines weiteren Vor­stapels 60˝ (s. dazu Fig. 5f) bereit. Durch Anheben des Auflagetisches 54 werden nun die beiden übereinanderlie­genden Vorstapel 60, 60′ zusammengepresst, so dass das obere Ende des Vorstapels 60′ eine im wesentlichen ho­rizontale Auflage für den dritten Vorstapel 60˝ bildet. Anschliessend wird der Auflagetisch 54 für die Ueber­nahme des dritten Vorstapels 60˝ abgesenkt, wie dies in der Fig. 5f dargestellt ist. Nach dem Ablegen des drit­ten Vorstapels 60˝ auf den zweiten Vorstapel 60′ wird der Auflagetisch 54 ohne vorheriges Zusammenpressen des aus den drei Vorstapeln 60, 60′, 60˝ bestehenden Fertig­stapels 62 ganz abgesenkt (s. Fig. 5g). Dabei bleibt die Restausbiegung der Druckereiprodukte 32 des obersten Vorstapels 60˝ erhalten, wie dies mit einer gestrichel­ten Linie 32′ angedeutet ist (vgl. hierzu auch Fig. 5h). Wärend das Ausstossorgan 68 den Fertigstapel 62 aus dem Aufnahmeschacht 52 ausstösst, wird bereits wieder im Vorstapelraum 14 in bekannter Art und Weise ein neuer erster Vorstapel 60 gebildet.As shown in Fig. 5e, is then Send the support table 54 lowered in the direction of arrow B until the upper end of the second pre-stack 60 'comes to lie below the two slide plates 22 and then rotated in the direction of arrow C, ie in the opposite direction, by 180 o . By pushing the two slide plates 22 again into the pre-stacking space 14 and transferring the support arms 42 into their support position, the stacking unit 10 is ready for the formation of a further pre-stack 60˝ (see FIG. 5f). By lifting the support table 54, the two superposed pre-stacks 60, 60 'are now pressed together, so that the upper end of the pre-stack 60' forms a substantially horizontal support for the third pre-stack 60 '. The support table 54 is then lowered for the takeover of the third preliminary stack 60˝, as shown in FIG. 5f. After depositing the third pre-stack 60˝ on the second pre-stack 60 ', the support table 54 is completely lowered without previously compressing the finished stack 62 consisting of the three pre-stacks 60, 60', 60˝ (see FIG. 5g). The remaining deflection of the printed products 32 of the uppermost pre-stack 60˝ is retained, as is indicated by a dashed line 32 '(cf. also Fig. 5h). While the ejection member 68 ejects the finished stack 62 from the receiving shaft 52, a new first pre-stack 60 is already formed in the pre-stacking space 14 in a known manner.

Da beim Zurückschwenken der Stützarme 42 in ihre Ruhe­stellung 42′ und beim Ablegen des Vorstapels 60˝ auf den Vorstapel 60′ eine Restausbiegung mindestens in den un­tersten Druckereiprodukten 32 des obersten Vorstapels 60′ erhalten bleibt, wird die grössere Dicke der Drucke­reiprodukte 32 im Bereich der Falze 30 ausgeglichen und ein Abrutschen der Druckereiprodukte 32 ab dem Fertig­stapel 62 verhindert. Dadurch kann ein Pressen des Fer­tigstapels 62 vermieden werden, was eine erhebliche Re­duktion der Verarbeitungszeit mit sich bringt.Since when pivoting the support arms 42 in their rest position 42 'and when placing the pre-stack 60˝ on the pre-stack 60' a residual deflection at least in the lowermost printed products 32 of the top pre-stack 60 'is retained, the greater thickness of the printed products 32 is compensated for in the region of the folds 30 and slipping of the printed products 32 from the finished stack 62 is prevented. As a result, pressing of the finished stack 62 can be avoided, which entails a considerable reduction in the processing time.

Es ist auch denkbar, dass der Auflagetisch 54 jeweils nicht um 180o gedreht wird, so dass die Falze 30 sämtli­cher Druckereiprodukte 32 im Fertigstapel 62 übereinan­derliegen. Es ist auch möglich, dass beim Uebereinander­legen der Druckereiprodukte 32 im Vorstapelraum 14 zu den im Fertigstapel 62 untenliegenden Vorstapeln 60, 60′, die Stützarme 42 in ihrer Ruhestellung 42′ verblei­ben und so das unterste Druckereiprodukt 32 jeweils mit seiner ganzen Unterseite auf die Schieberplatten 22 zur Auflage kommt. Dadurch wird aber ein sicheres Anliegen der Falze 30 am Begrenzungselement 20 nicht gewährlei­stet, was zur Folge haben kann, dass die Druckereipro­dukte 32 nicht genau ausgerichtet übereinanderliegen. Auf jeden Fall werden immer die Druckereiprodukte 32, die zum obersten Vorstapel 60′ des Fertigstapels 62 auf­einandergestapelt werden, mittels den Stützarmen 42 ab­gestützt.It is also conceivable that the support table 54 is not rotated by 180 ° , so that the folds 30 of all printed products 32 lie one above the other in the finished stack 62. It is also possible that when superimposing the printed products 32 in the pre-stacking space 14 to the pre-stacking 60, 60 'located in the finished stack 62, the support arms 42 remain in their rest position 42' and so the bottom printed product 32 with its entire underside on the slide plates 22 comes to circulation. However, this does not ensure that the folds 30 rest securely on the delimitation element 20, which can result in the printed products 32 not lying one above the other in a precisely aligned manner. In any case, the printed products 32, which are stacked on top of the top stack 60 'of the finished stack 62, are supported by means of the support arms 42.

Claims (13)

1. Verfahren zum Bilden von Stapeln aus gefalteten Druckereiprodukten, wie Zeitungen, Zeitschriften und der­gleichen, bei dem nacheinander, aus jeweils einer be­stimmten Anzahl von Druckereiprodukten, die mit einer Seitenkante voraus gegen einen Anschlag eines Vorstapel­raumes gefördert werden, Vorstapel gebildet werden, die dann auf ein Auflageorgan oder auf sich bereits dort be­findende Vorstapel aufgelegt und anschliessend gepresst werden, und schliesslich der aus wenigstens zwei Vorsta­peln gebildete Fertigstapel vom Auflageorgan weggefördert wird, dadurch gekennzeichnet, dass die Druckereiprodukte (32) mit ihrem Falz (30) voraus gegen den Anschlag (20) gefördert werden, mindestens die den obersten Vorstapel (60˝) des Fertigstapels (62) bildenden Druckereiprodukte (32) während des Stapelns im Vorstapelraum (14) nur am dem Falz (30) gegenüberliegenden Randbereich (38) etwa mittig abgestützt werden und der Fertigstapel (62) ohne vorangehendes Pressen des obersten Vorstapels (60˝) weg­gefördert wird.1. A method for forming stacks from folded printed products, such as newspapers, magazines and the like, in which one after the other, from a certain number of printed products which are conveyed with a side edge against a stop of a pre-stacking space, pre-stacks are formed, which are then opened a support member or pre-stack already there is placed and then pressed, and finally the finished stack formed from at least two pre-stacks is conveyed away from the support member, characterized in that the printed products (32) with their fold (30) ahead against the stop (20 ) are promoted, at least the printed products (32) forming the uppermost pre-stack (60˝) of the pre-stack (62) are only supported approximately centrally in the pre-stacking space (14) during stacking in the edge region (38) opposite the fold (30) and the pre-stack (62) without first pressing the top pre-tape ls (60˝) is transported away. 2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass die Druckereiprodukte (32) beim Bilden sämtlicher Vorstapel (60, 60′, 60˝) am dem Falz (30) gegenüberlie­genden Randbereich (38) etwa mittig abgestützt werden.2. The method according to claim 1, characterized in that the printed products (32) when forming all pre-stacks (60, 60 ', 60˝) on the fold (30) opposite edge region (38) are supported approximately in the middle. 3. Verfahren nach einem der Ansprüche 1 oder 2, da­durch gekennzeichnet, dass die Vorstapel (60, 60′, 60˝) jeweils um 180o verdreht auf den zuletzt dem Auflageorgan (54) zugeführten Vorstapel (60, 60′) aufgelegt werden.3. The method according to any one of claims 1 or 2, characterized in that the pre-stack (60, 60 ', 60˝) rotated by 180 o in each case placed on the last stack (60, 60') fed to the support member (54). 4. Vorrichtung zum Bilden von Stapeln aus gefalteten Druckereiprodukten, wie Zeitungen, Zeitschriften und der­gleichen, mit einer Fördereinrichtung zum Zuführen von Druckereiprodukten mit einer Seitenkante voraus gegen ei­nen Anschlag eines Vorstapelraumes, in welchem jeweils aus einer bestimmten Anzahl von Druckereiprodukten Vor­stapel gebildet werden, mit einem Auflageorgan, auf wel­ches die Vorstapel aufeinander ablegbar sind, mit einer Presseinrichtung zum Zusammenpressen von auf das Auflage­organ aufgelegten Vorstapeln, und mit einem Wegförderer zum Wegführen der aus wenigstens zwei Vorstapeln gebilde­ten Fertigstapel vom Auflageorgan, dadurch gekennzeich­net, dass ein in den Vorstapelraum (14) einführbares und wieder aus diesem ausführbares Abstützelement (36) zum etwa mittigen Abstützen der mit ihrem Falz (30) voraus gegen den Anschlag (20) geförderten Druckereiprodukte (32) mindestens des obersten Vorstapels (60˝) des Fertig­stapels (62), nur am dem Falz (30) gegenüberliegenden Randbereich (38) vorgesehen ist, und der Fertigstapel (62) mittels des Wegförderers (68) ohne vorangehendes Pressen des obersten Vorstapels (60˝) wegführbar sind.4. Apparatus for forming stacks from folded printed products, such as newspapers, magazines and the like, with a conveyor for feeding printed products with a side edge ahead against a stop in a pre-stacking space, in which pre-stacks are formed from a certain number of printed products, with one Support element on which the pre-stacks can be placed one on top of the other, with a pressing device for compressing pre-stacks placed on the support element, and with a conveyor for removing the finished stacks formed from at least two pre-stacks from the support element, characterized in that an insertable into the pre-stacking space (14) and again from this executable supporting element (36) for supporting the printed products (32) conveyed with their fold (30) ahead against the stop (20) at least of the uppermost prepack (60˝) of the finished stack (62), approximately only on the fold, approximately centrally (30) opposite edge area (38) is provided, and the finished stack (62) can be removed by means of the conveyor (68) without first pressing the uppermost pre-stack (60˝). 5. Vorrichtung nach Anspruch 4, dadurch gekennzeich­net, dass das Abstützelement (36) ein um eine im wesent­lichen horizontale, quer zur Zuführrichtung (F) verlau­fende und vorzugsweise dem Vorstapelraum (14) vorgelager­te Achse (40) schwenkbar gelagertes Abstützorgan (42) aufweist, das von einer in den Stapelraum (14) zeigenden Abstützstellung nach unten in eine Ruhestellung (42′) und wieder zurück schwenkbar ist, wobei das Abstützorgan (42) in seiner Ruhestellung vorzugsweise ausserhalb des Vor­stapelraumes (14) angeordnet ist.5. The device according to claim 4, characterized in that the support element (36) has a support member (42) pivotably mounted about an axis (40) which is essentially horizontal, transverse to the feed direction (F) and preferably upstream of the pre-stacking space (14), which can be pivoted downward into a rest position (42 ') and back again from a support position pointing into the stacking space (14), the support element (42) in its rest position preferably being arranged outside the pre-stacking space (14). 6. Vorrichtung nach Anspruch 5, dadurch gekennzeich­net, dass das Abstützorgan einen Stützhebel mit vorzugs­weise zwei seitlich voneinander beabstandeten und zuein­ander im wesentlichen parallelen Stützarmen (42) auf­weist.6. The device according to claim 5, characterized in that the support member has a support lever with preferably two laterally spaced and mutually parallel support arms (42). 7. Vorrichtung nach Anspruch 4, dadurch gekennzeich­net, dass das Auflageorgan (54) um eine im wesentlichen vertikale Achse (57) um jeweils 180o schwenkbar ist, vor­zugsweise jeweils in entgegengesetzten Richtungen (C).7. The device according to claim 4, characterized in that the support member (54) about a substantially vertical axis (57) is pivotable by 180 o , preferably in opposite directions (C). 8. Vorrichtung nach einem der Ansprüche 4 bis 7, da­durch gekennzeichnet, dass der Vorstapelraum (14) direkt oberhalb des Auflageorganes (54) angeordnet ist und unten von einem aus dem Bereich des Vorstapelraumes (14) aus­fahrbaren und wieder in ihn einfahrbaren Abschlussorgan (22) begrenzt ist.8. Device according to one of claims 4 to 7, characterized in that the pre-stacking space (14) is arranged directly above the support member (54) and below from a from the area of the pre-stacking space (14) extendable and retractable into it closing member (22nd ) is limited. 9. Vorrichtung nach Anspruch 8, dadurch gekennzeich­net, dass das Abschlussorgan von mindestens einer im we­sentlichen horizontalen und parallel zur Zuführrichtung (F) verschiebbaren Schieberplatte (22) gebildet ist.9. The device according to claim 8, characterized in that the closure member is formed by at least one substantially horizontal and parallel to the feed direction (F) displaceable slide plate (22). 10. Vorrichtung nach einem der Ansprüche 8 oder 9, da­durch gekennzeichnet, dass das Auflageorgan (54) mit ei­ner Hebe- und Senkeinrichtung (56) versehen ist und zu­sammen mit dem Abschlussorgan (22) die Presseinrichtung bildet.10. Device according to one of claims 8 or 9, characterized in that the support member (54) is provided with a lifting and lowering device (56) and forms the pressing device together with the closing member (22). 11. Vorrichtung nach einem der Ansprüche 8 bis 10, da­durch gekennzeichnet, dass das Abstützelement (36) in ei­ nem Abstand oberhalb des Abschlussorganes (22) angeordnet ist.11. Device according to one of claims 8 to 10, characterized in that the support element (36) in egg Nem distance above the closure member (22) is arranged. 12. Vorrichtung nach den Anspüchen 2 und 8, dadurch gekennzeichnet, dass das Abstützelement (36) in Abstütz­stellung im wesentlichen gegen die durch das Abschlussor­gan (22) und den Anschlag (20) des Vorstapelraumes (14) gebildete Ecke (E) gerichtet ist.12. The device according to claims 2 and 8, characterized in that the support element (36) in the support position is directed essentially against the corner (E) formed by the closing element (22) and the stop (20) of the pre-stacking space (14). 13. Vorrichtung nach Anspruch 8 oder 9, dadurch ge­kennzeichnet, dass das Abschlussorgan (22) in eine Rich­tung (A) ein- oder ausfahrbar ist, die mit der Zuführ­richtung (F) der Druckereiprodukte (32) im wesentlichen gleichgerichtet ist.13. The apparatus of claim 8 or 9, characterized in that the closure member (22) in a direction (A) can be extended or retracted, which is essentially the same direction with the feed direction (F) of the printed products (32).
EP89106110A 1988-06-27 1989-04-07 Method and device for stacking folded printed products Expired - Lifetime EP0348610B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89106110T ATE81330T1 (en) 1988-06-27 1989-04-07 METHOD AND DEVICE FOR FORMING STACKS OF FOLDED PRINTED PRODUCTS.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH244488 1988-06-27
CH2444/88 1988-06-27

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EP0348610A2 true EP0348610A2 (en) 1990-01-03
EP0348610A3 EP0348610A3 (en) 1990-05-30
EP0348610B1 EP0348610B1 (en) 1992-10-07

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US (1) US5002456A (en)
EP (1) EP0348610B1 (en)
JP (1) JPH0233061A (en)
AT (1) ATE81330T1 (en)
DE (1) DE58902405D1 (en)
FI (1) FI95686C (en)

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EP0477763A1 (en) * 1990-09-27 1992-04-01 Gämmerler, Hagen Method and device for depositing and transporting flat objects
DE19947329B4 (en) * 1999-10-01 2005-04-28 D E Pfaff Ingenieurbuero Gmbh Apparatus for vertically forming sub-stacks of printed products
DE102008043545A1 (en) 2008-11-07 2010-05-12 Bühler AG Bulk goods-bagging device for bagging preset bulk goods-charging weights in transport drums, particularly in bags, has balance and control device, where bagging adapter of bagging carousel is provided with pneumatics for attaching bag
US7726931B2 (en) 2006-05-05 2010-06-01 Ferag Ag Rotary lift table
FR2975980A1 (en) * 2011-06-06 2012-12-07 Recmi Ind Stacking device for vertical stacking of documents, has lower section with top face partially sealable using stops, where stops and bottom face of section are movable upwardly and downwardly within stacking well to press stack of documents

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JP4889527B2 (en) * 2007-03-06 2012-03-07 サトーホールディングス株式会社 Small roll device
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FR2975980A1 (en) * 2011-06-06 2012-12-07 Recmi Ind Stacking device for vertical stacking of documents, has lower section with top face partially sealable using stops, where stops and bottom face of section are movable upwardly and downwardly within stacking well to press stack of documents

Also Published As

Publication number Publication date
DE58902405D1 (en) 1992-11-12
FI893108A0 (en) 1989-06-26
FI95686C (en) 1996-03-11
EP0348610A3 (en) 1990-05-30
FI95686B (en) 1995-11-30
FI893108A (en) 1989-12-28
US5002456A (en) 1991-03-26
JPH0233061A (en) 1990-02-02
ATE81330T1 (en) 1992-10-15
EP0348610B1 (en) 1992-10-07

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