EP0583602B1 - Folding device - Google Patents

Folding device Download PDF

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Publication number
EP0583602B1
EP0583602B1 EP93111063A EP93111063A EP0583602B1 EP 0583602 B1 EP0583602 B1 EP 0583602B1 EP 93111063 A EP93111063 A EP 93111063A EP 93111063 A EP93111063 A EP 93111063A EP 0583602 B1 EP0583602 B1 EP 0583602B1
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EP
European Patent Office
Prior art keywords
folding
folded sheets
packs
sheets
folded
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
EP93111063A
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German (de)
French (fr)
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EP0583602A1 (en
Inventor
Godber Petersen
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.)
Manroland AG
Original Assignee
MAN Roland Druckmaschinen AG
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Publication date
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Publication of EP0583602A1 publication Critical patent/EP0583602A1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H45/00—Folding thin material
    • B65H45/12—Folding articles or webs with application of pressure to define or form crease lines
    • B65H45/18—Oscillating or reciprocating blade folders

Definitions

  • the invention relates to a folding apparatus for rotary printing presses, to which individual folding sheets or folding sheet packages to be folded can be fed in series.
  • Folders for web-fed rotary printing presses are generally known. Such a folder is described in DE 33 21 811 C2. In it, folded sheets are fed via a first, upper and lower belts, near the press, faster running ribbon line to a delay line, behind which they are fed to a second, again upper and lower ribbons, slower running, remote from the press or a pair of folding rollers. The folded sheets are placed one behind the other, i.e. processed serially. This makes it necessary to feed them to the folder in a precisely defined manner and to ensure, for example with the aid of the delay line described here, a certain speed of the folder copies as they pass through the folder. As a result, such a folder quickly reaches its performance limit at higher processing speeds, depending on the type of fold and type of paper. Because the associated web-fed rotary printing press generally has a higher output than the downstream folder, this means that the web-fed printing press cannot be fully extended.
  • a "device for receiving and continuing folding products” is known in which folding products are stored next to each other.
  • An approximately zigzag-shaped support structure made of, for example, elastic sheets welded to one another at the contact points can be displaced along guide rails.
  • the carrier structure can be removed from an empty store and pulled or pushed into an unloading, loading or mixing area, where the expanded support structure is ready to receive folded products.
  • the folded products can then be stored compactly on or in the support structures in a memory.
  • JP 61-37667 A folding device for the simultaneous folding of two folded copies is known, the edges of which face one another during the folding process. Two folding knives are simultaneously moved between two rotatably mounted rollers by means of a control via a cam drive and thereby fold the two folding copies.
  • first folding units are provided in that the folding sheets or the folding sheet packages can be fed to the first folding units parallel in a direction substantially perpendicular to the direction of the serial feed and simultaneously foldable in them, whereby the number of folding sheets or folding sheet packages that can be fed in parallel corresponds to the number of folding units.
  • a web-fed rotary printing press upstream of the folder according to the invention can therefore be operated at the highest speed; at the same time, the folder guarantees high quality with a large throughput of folder copies. Further advantages result from the subclaims.
  • a transport device 1 In a transport device 1 (FIG. 1), folded sheets 9, which are initially stacked on a stack 2, are individually removed from the stack 2 by a gripper chain 3 in a manner known per se. Instead of the individual folded sheets 9, folded sheet stacks can also be removed.
  • the gripper chain 3 has gripping units 300 with stops 301. Corresponding to the distance between the gripping units 300, the folding sheets 9 which hang on the gripper chain 3 have the same distances from one another and are transported in the direction of an arrow 4 to folding units 8 (FIG. 3). Above the folding units, the gripper chain 3 is stopped for a short period of time.
  • a trigger rail 5 arranged above the gripper chain 3 and having projections 501 which engage behind the stops 301 is moved either successively or simultaneously in the direction of arrows 6, 7 to the gripper chain 3, so that the stops 301 are opened by the projections 501.
  • the folded sheets 9 are simultaneously fed to the individual folding units 8.
  • a transport device 14 with storage cartridges 140 can also be provided.
  • folded sheets 9 are already folded in from the DE 36 21 832 C1 mentioned above in a manner known per se in zigzag-shaped carrier structures 10, 11.
  • the folded sheets 9 are removed from the carrier structures 10, 11 with the storage cartridges 140 in the direction of an arrow 15 pulled out on rails 16.
  • the support structures 10, 11 have spacers 100, by means of which the folded sheets 9 are kept equally spaced from one another. Subsequently, the support structures 10, 11 with the folded sheets 9 are each brought to a position above the folding units 8 (FIG. 3).
  • Each of the folding units 8 has a pair of transport rollers 17, which can be moved in the direction of an arrow 18 into a position 17 '.
  • the transport rollers 17 are pushed together at the same time so that they grip the folded sheet 9.
  • the folded sheet 9 is released in that the support structures 10, 11 move apart in the direction of arrows 19, 20.
  • the folded sheet 9 is then transported in the direction of an arrow 21 until it assumes a position 9 '.
  • the folded sheet 9 slides laterally from sheets 23, 24, 25, 26 until it lies between them in position 9 'with its lower edge supported on stops 27, 28.
  • the folded sheet 9 is aligned by stops 31 and 32, which are fastened on the rails 29, 30 and move in opposite directions to one another in the directions of arrows 33, 34.
  • the sheets 23 are each attached to rails 36 via elastic tongues 35.
  • a folder has a plurality of the folding units 8, which are arranged next to one another in a direction perpendicular to the direction of the serial feed of the folding sheets 9, as indicated by the arrows 4 and 15, the folding sheets 9 parallel and record at the same time.
  • the direction of the parallel recording can, for example, also deviate from that of the arrow 21 by ⁇ 10 °.
  • the folding units 8 are located next to one another (FIG. 4) in order to receive the folding sheets 9 simultaneously from the carrier structures 10, 11 via the transport rollers 17.
  • the sheets 23 are moved over the rails 36 in the direction of an arrow 37 (FIG. 5), and thereby one half of each folded sheet 9 is pressed against the sheets 24 pressed and held by them.
  • the folding units 8 each have a folding roller 38 which is fixedly but rotatably mounted in the respective sheet 24.
  • Each of the folding rollers 38 is assigned a further folding roller 39 which is also rotatably mounted in a fork-shaped holder 40.
  • the folding roller 39 can also be moved laterally by the holder 40.
  • the bracket 40 is guided between the sheets 25 and sheets 41 and blocks 42 and 43 (Fig. 4) longitudinally.
  • the blocks 42, 43 are each fastened to a carrier 44 (FIG. 5).
  • the folding rollers 39 can be moved by means of a pneumatically operated cylinder 46, for example, via the holder 40 and a lever 45, which is mounted on the carrier 44.
  • the folding rollers 39 are moved into a position 39 'in order to impress them the folding sheets 9 by the folding knife 47 to facilitate. Only one half (i.e. the lower half according to FIG. 5) is moved away in the direction 34, while the other half (i.e. the upper half) remains clamped between the sheets 23 and 24, so that an exact fold is achieved.
  • the folding blades 47 are jointly fastened to a rail 49 (cf. FIG. 3) and are moved in the direction of the arrow 37 (FIG. 5) into a position 47 ', so that the angled ends of the folding blades 47 push into the folding sheets 9 and push them in.
  • the folding knives 47 are arranged by pinions 50, toothed racks 51 via guides (cf. FIG. 3) in such a way that they move in the direction of the arrow 37 let move.
  • the folding rollers 39 are then moved through the cylinders 46 moved from position 39 'in the direction of arrow 34 to position 39 and produce the fold break at the end of the folding process.
  • the air pressure in the cylinders 46 is reduced to such an extent that the folded sheets 9 are transported further by the rotation of the folding rollers 38, 39.
  • the folding blades 47 are withdrawn from their positions 47 'into their starting position.
  • the stops 28 (FIG. 3) are moved via a common rail 58 into a position 28 ′ (FIG. 5) in order to support the folded folded sheets 9.
  • the folding rollers 39 are driven via spur gears 53, 54 and chain wheels 55 (FIGS. 3, 5, 8) in the direction of an arrow 56 (FIGS. 5, 7), while the folding rollers 38 are set in motion by the friction with the folding sheets 9 become.
  • the chain wheels 55 are driven via a common chain 57 (FIGS. 5, 7).
  • the folded folded sheets 9 come into a position 9 ′′ between the sheets 41 and sheets 59, as can be seen in particular from FIGS. 6 and 7.
  • the toothed sheets 9 are gripped by pairs of toothed belts 60 in a position 60'.
  • the pairs of toothed belts 60 are each moved via drive rollers 601, 602, which are moved from position 60 to position 60 'via a rack (not shown here) analogous to the transport rollers 17.
  • the folded sheets 9 are transported further via guide tongues 61 (FIG. 3) and, for example, fed to a device for stacking printed products, as is known from DE 38 11 289 C2.
  • Folding units which are constructed like the folding units 8 described in FIGS. 1 to 9 can be connected in series in order to fold the folding sheets 9 several times.
  • a folding sheet 62 (FIG. 10) receives its first transverse fold along a folding line 66 (FIG. 10) in a first folding unit with the aid of folding rollers 63, 64 and a folding knife 65 (FIG. 11). Then he receives a second one
  • a longitudinal fold is produced along a folding line 71 (FIG. 10) by means of folding rollers 72, 73 (FIGS. 10, 11) and a folding knife 74 (FIG. 11).
  • folding stations can be arranged one after the other in any order.
  • a plurality of folding stations 8 work in parallel, which are simple in construction and process a considerable number of folding sheets 9 simultaneously.

Description

Die Erfindung bezieht sich auf einen Falzapparat für Rotationsdruckmaschinen, dem einzelne, zu falzende Falzbögen oder Falzbogenpakete seriell zuführbar sind.The invention relates to a folding apparatus for rotary printing presses, to which individual folding sheets or folding sheet packages to be folded can be fed in series.

Falzapparate für Rollenrotationsdruckmaschinen sind allgemein bekannt. In der DE 33 21 811 C2 wird ein derartiger Falzapparat beschrieben. In ihr werden Falzbögen über eine erste, obere und untere Bänder aufweisende, druckmaschinennahe, schneller laufende Bandleitung einer Verzögerungsstrecke zugeführt, hinter der sie einer zweiten, wiederum obere und untere Bänder aufweisenden, langsamer laufenden, druckmaschinenfernen Bandleitung oder einem Falzwalzenpaar zugeführt werden. Die Falzbögen werden hintereinander, d.h. seriell verarbeitet. Dies macht es erforderlich, sie in genau definierter Weise dem Falzapparat zuzuführen und beispielsweise mit Hilfe der hier beschriebenen Verzögerungsstrecke eine bestimmte Geschwindigkeit der Falzexemplare beim Durchlauf durch den Falzapparat zu gewährleisten. Dadurch stößt ein derartiger Falzapparat bei höheren Verarbeitungsgeschwindigkeiten je nach Falzart und Papiersorte schnell an seine Leistungsgrenze. Weil die zugehörige Rollenrotationsdruckmaschine in der Regel eine höhere Leistung hat als der nachgeschaltete Falzapparat, führt dies dazu, daß die Rollendruckmaschine nicht voll ausgefahren werden kann.Folders for web-fed rotary printing presses are generally known. Such a folder is described in DE 33 21 811 C2. In it, folded sheets are fed via a first, upper and lower belts, near the press, faster running ribbon line to a delay line, behind which they are fed to a second, again upper and lower ribbons, slower running, remote from the press or a pair of folding rollers. The folded sheets are placed one behind the other, i.e. processed serially. This makes it necessary to feed them to the folder in a precisely defined manner and to ensure, for example with the aid of the delay line described here, a certain speed of the folder copies as they pass through the folder. As a result, such a folder quickly reaches its performance limit at higher processing speeds, depending on the type of fold and type of paper. Because the associated web-fed rotary printing press generally has a higher output than the downstream folder, this means that the web-fed printing press cannot be fully extended.

Aus der EP 0 250 774 B1 ist eine "Vorrichtung zur Aufnahme und Weiterführung von Falzprodukten" bekannt, in der Falzprodukte nebeneinander gespeichert werden. Eine etwa zick-zackförmige Trägerstruktur aus beispielsweise elastischen, an den Berührungspunkten miteinander verschweißten Blechen ist entlang von Führungsschienen verschiebbar. In zusammengeschobener Form kann die Träger-Struktur von einem Leerspeicher entnommen und in einen Entlade-, Belade- oder Mischbereich gezogen oder geschoben werden, wo die auseinandergezogene Trägerstruktur zur Aufnahme von Falzprodukten bereit ist. Anschließend können die Falzprodukte auf oder in den Trägerstrukturen in einem Speicher kompakt abgespeichert werden.From EP 0 250 774 B1 a "device for receiving and continuing folding products" is known in which folding products are stored next to each other. An approximately zigzag-shaped support structure made of, for example, elastic sheets welded to one another at the contact points can be displaced along guide rails. In a pushed-together form, the carrier structure can be removed from an empty store and pulled or pushed into an unloading, loading or mixing area, where the expanded support structure is ready to receive folded products. The folded products can then be stored compactly on or in the support structures in a memory.

Aus der JP 61-37667 (A) ist eine Falzvorrichtung zum gleichzeitigen Falzen von zwei Falzexemplaren bekannt, deren Kanten während des Falzvorgangs einander zugewandt sind. Zwei Falzmesser werden mittels einer Steuerung über einen Nockenantrieb gleichzeitig zwischen zwei ortsfest drehbar gelagerte Walzen hindurchbewegt und falzen dadurch die beiden Falzexemplare.From JP 61-37667 (A) a folding device for the simultaneous folding of two folded copies is known, the edges of which face one another during the folding process. Two folding knives are simultaneously moved between two rotatably mounted rollers by means of a control via a cam drive and thereby fold the two folding copies.

Es ist die Aufgabe der vorliegenden Erfindung, einen Falzapparat zu schaffen, der sich auch für die schnelle Verarbeitung von Falzprodukten eignet.It is the object of the present invention to provide a folder which is also suitable for the rapid processing of folded products.

Bei einem Falzapparat der eingangs genannten Art wird die Aufgabe dadurch gelöst, daß erste Falzeinheiten vorgesehen sind, daß die Falzbögen oder die Falzbogenpakete den ersten Falzeinheiten parallel in einer zur Richtung der seriellen Zuführung im wesentlichen senkrechten Richtung zuführbar und in ihnen parallel gleichzeitig falzbar sind, wobei die Anzahl der maximal parallel zuführbaren Falzbögen oder Falzbogenpakete der Anzahl der Falzeinheiten entspricht.In a folder of the type mentioned, the object is achieved in that first folding units are provided in that the folding sheets or the folding sheet packages can be fed to the first folding units parallel in a direction substantially perpendicular to the direction of the serial feed and simultaneously foldable in them, whereby the number of folding sheets or folding sheet packages that can be fed in parallel corresponds to the number of folding units.

Eine dem erfindungsgemäßen Falzapparat vorgeschaltete Rollenrotationsdruckmaschine kann demnach bei höchster Geschwindigkeit betrieben werden; gleichzeitig gewährleistet der Falzapparat eine hohe Qualität bei großem Durchsatz von Falzexemplaren. Weitere Vorteile ergeben sich aus den Unteransprüchen.A web-fed rotary printing press upstream of the folder according to the invention can therefore be operated at the highest speed; at the same time, the folder guarantees high quality with a large throughput of folder copies. Further advantages result from the subclaims.

Nachstehend wird die Erfindung in einem Ausführungsbeispiel anhand der Zeichnungen näher erläutert. Es zeigen:

Fig. 1
eine Seitenansicht auf eine Transportvorrichtung mit einer Greiferkette,
Fig. 2
eine Seitenansicht auf eine Transportvorrichtung mit einer Kassette,
Fig. 3
eine Vorderansicht auf eine Falzeinheit,
Fig. 4
eine Seitenansicht einer Vielfachfalzanlage,
Fig. 5
eine Schnittansicht entlang einer Linie I-I der Fig. 3 und einer Linie II-II der Fig. 4,
Fig. 6
einen vergrößerten Ausschnitt aus Fig. 4,
Fig. 7
einen vergrößerten Ausschnitt aus Fig. 5,
Fig. 8
eine Schnittansicht entlang einer Linie III-III der Fig. 3,
Fig. 9
eine Ansicht in Richtung eines Pfeiles IV der Fig. 3,
Fig. 10
eine schematisierte Darstellung nebeneinander geschalteter Falzeinheiten und
Fig. 11
eine weitere schematisierte Darstellung nebeneinander geschalteter Falzeinheiten.
The invention is explained in more detail in an exemplary embodiment with reference to the drawings. Show it:
Fig. 1
a side view of a transport device with a gripper chain,
Fig. 2
a side view of a transport device with a cassette,
Fig. 3
a front view of a folding unit,
Fig. 4
a side view of a multiple folding system,
Fig. 5
3 shows a sectional view along a line II of FIG. 3 and a line II-II of FIG. 4,
Fig. 6
3 shows an enlarged detail from FIG. 4,
Fig. 7
5 shows an enlarged detail from FIG. 5,
Fig. 8
4 shows a sectional view along a line III-III of FIG. 3,
Fig. 9
3 shows a view in the direction of an arrow IV in FIG.
Fig. 10
a schematic representation of side-by-side folding units and
Fig. 11
a further schematic representation of folding units connected side by side.

In einer Transportvorrichtung 1 (Fig. 1) werden Falzbögen 9, die zunächst auf einem Stapel 2 übereinandergeschichtet liegen, von dem Stapel 2 durch eine Greiferkette 3 in an sich bekannter Weise einzeln entnommen. Anstelle der einzelnen Falzbögen 9 können auch Falzbogenstapel entnommen werden. Die Greiferkette 3 weist Greifeinheiten 300 mit Anschlägen 301 auf. Entsprechend dem Abstand der Greifeinheiten 300 haben auch die Falzbögen 9, die an der Greiferkette 3 hängen, voneinander gleiche Abstände, und werden in Richtung eines Pfeiles 4 zu Falzeinheiten 8 (Fig. 3) transportiert. Oberhalb der Falzeinheiten wird die Greiferkette 3 für eine kurze Zeitdauer stillgesetzt. Eine oberhalb der Greiferkette 3 angeordnete Auslöserschiene 5 mit Auskragungen 501, die hinter die Anschläge 301 greifen, wird entweder nacheinander oder gleichzeitig in Richtung von Pfeilen 6, 7 zu der Greiferkette 3 bewegt, so daß die Anschläge 301 durch die Auskragungen 501 geöffnet werden. Dadurch werden die Falzbögen 9 gleichzeitig den einzelnen Falzeinheiten 8 zugeführt.In a transport device 1 (FIG. 1), folded sheets 9, which are initially stacked on a stack 2, are individually removed from the stack 2 by a gripper chain 3 in a manner known per se. Instead of the individual folded sheets 9, folded sheet stacks can also be removed. The gripper chain 3 has gripping units 300 with stops 301. Corresponding to the distance between the gripping units 300, the folding sheets 9 which hang on the gripper chain 3 have the same distances from one another and are transported in the direction of an arrow 4 to folding units 8 (FIG. 3). Above the folding units, the gripper chain 3 is stopped for a short period of time. A trigger rail 5 arranged above the gripper chain 3 and having projections 501 which engage behind the stops 301 is moved either successively or simultaneously in the direction of arrows 6, 7 to the gripper chain 3, so that the stops 301 are opened by the projections 501. As a result, the folded sheets 9 are simultaneously fed to the individual folding units 8.

Anstelle der Transportvorrichtung 1 gemäß Fig. 1 kann auch eine Transportvorrichtung 14 mit Speicherkassetten 140 (Fig. 2) vorgesehen werden. Hierbei liegen bereits einmal gefalzte Falzbögen 9 in aus der oben genannten DE 36 21 832 C1 an sich bekannter Weise in zick-zackförmigen Trägerstrukturen 10, 11. Mit Hilfe von an Transportketten 12, 13 befindlichen Mitnehmern 121 werden die Falzbögen 9 aus den Trägerstrukturen 10, 11 mit den Speicherkassetten 140 in Richtung eines Pfeiles 15 auf Schienen 16 herausgezogen. Die Trägerstrukturen 10, 11 weisen Abstandshalter 100 auf, durch die die Falzbögen 9 voneinander gleichbeabstandet gehalten werden. Anschließend werden die Trägerstrukturen 10, 11 mit den Falzbögen 9 jeweils auf eine Position oberhalb der Falzeinheiten 8 (Fig. 3) gebracht. Jede der Falzeinheiten 8 weist jeweils ein Paar Transportwalzen 17 auf, das sich in Richtung eines Pfeiles 18 in eine Position 17' bewegen läßt. Dabei werden die Transportwalzen 17 gleichzeitig zusammengeschoben, so daß sie den Falzbogen 9 greifen. Gleichzeitig wird der Falzbogen 9 dadurch freigegeben, daß sich die Trägerstrukturen 10, 11 in Richtung von Pfeilen 19, 20 auseinanderbewegen. Dann wird der Falzbogen 9 in Richtung eines Pfeiles 21 transportiert, bis er eine Position 9' einnimmt. Der Falzbogen 9 gleitet seitlich von Blechen 23, 24, 25, 26, bis er zwischen ihnen in der Position 9' mit seiner Unterkante auf Anschlägen 27, 28 aufgestützt, liegen bleibt. Außerdem wird der Falzbogen 9 durch Anschläge 31 und 32, die auf den Schienen 29, 30 befestigt sind und sich zueinander gegenläufig in Richtungen von Pfeilen 33, 34 bewegen, ausgerichtet. Die Bleche 23 sind jeweils über elastische Zungen 35 an Schienen 36 befestigt.Instead of the transport device 1 according to FIG. 1, a transport device 14 with storage cartridges 140 (FIG. 2) can also be provided. Here, folded sheets 9 are already folded in from the DE 36 21 832 C1 mentioned above in a manner known per se in zigzag-shaped carrier structures 10, 11. With the aid of drivers 121 located on transport chains 12, 13, the folded sheets 9 are removed from the carrier structures 10, 11 with the storage cartridges 140 in the direction of an arrow 15 pulled out on rails 16. The support structures 10, 11 have spacers 100, by means of which the folded sheets 9 are kept equally spaced from one another. Subsequently, the support structures 10, 11 with the folded sheets 9 are each brought to a position above the folding units 8 (FIG. 3). Each of the folding units 8 has a pair of transport rollers 17, which can be moved in the direction of an arrow 18 into a position 17 '. The transport rollers 17 are pushed together at the same time so that they grip the folded sheet 9. At the same time, the folded sheet 9 is released in that the support structures 10, 11 move apart in the direction of arrows 19, 20. The folded sheet 9 is then transported in the direction of an arrow 21 until it assumes a position 9 '. The folded sheet 9 slides laterally from sheets 23, 24, 25, 26 until it lies between them in position 9 'with its lower edge supported on stops 27, 28. In addition, the folded sheet 9 is aligned by stops 31 and 32, which are fastened on the rails 29, 30 and move in opposite directions to one another in the directions of arrows 33, 34. The sheets 23 are each attached to rails 36 via elastic tongues 35.

Ein Falzapparat weist eine Vielzahl der Falzeinheiten 8 auf, die nebeneinander angeordnet sind, um in einer zur Richtung der seriellen Zuführung der Falzbögen 9, wie sie durch die Pfeile 4 und 15 angedeutet ist, im wesentlichen senkrechten Richtung (Pfeil 21) die Falzbögen 9 parallel und gleichzeitig aufzunehmen. Die Richtung der parallelen Aufnahme kann aber beispielsweise auch um ± 10° von der des Pfeils 21 abweichen.A folder has a plurality of the folding units 8, which are arranged next to one another in a direction perpendicular to the direction of the serial feed of the folding sheets 9, as indicated by the arrows 4 and 15, the folding sheets 9 parallel and record at the same time. The direction of the parallel recording can, for example, also deviate from that of the arrow 21 by ± 10 °.

Die Falzeinheiten 8 befinden sich, wie bereits oben angedeutet, nebeneinander (Fig. 4), um die Falzbögen 9 gleichzeitig aus den Trägerstrukturen 10, 11 über die Transportwalzen 17 aufzunehmen. Wenn die Falzbögen 9 in Ruhestellung mit ihrer Unterkante auf den Anschlägen 27, 28 liegen, werden die Bleche 23 über die Schienen 36 in Richtung eines Pfeiles 37 (Fig. 5) bewegt, und dadurch wird jeweils eine Hälfte jedes Falzbogens 9 gegen die Bleche 24 gedrückt und von diesen gehalten.As already indicated above, the folding units 8 are located next to one another (FIG. 4) in order to receive the folding sheets 9 simultaneously from the carrier structures 10, 11 via the transport rollers 17. When the folded sheets 9 are at rest with their lower edge on the stops 27, 28, the sheets 23 are moved over the rails 36 in the direction of an arrow 37 (FIG. 5), and thereby one half of each folded sheet 9 is pressed against the sheets 24 pressed and held by them.

Die Falzeinheiten 8 weisen jeweils eine Falzwalze 38 auf, die fest, aber drehbar in dem jeweiligen Blech 24 gelagert ist. Jeder der Falzwalzen 38 ist eine weitere Falzwalze 39 zugeordnet, die in einer gabelförmigen Halterung 40 ebenfalls drehbar gelagert ist. Durch die Halterung 40 ist die Falzwalze 39 jedoch auch seitlich bewegbar. Die Halterung 40 wird zwischen den Blechen 25 und Blechen 41 sowie Klötzen 42 und 43 (Fig. 4) längsverschiebbar geführt. Dabei sind die Klötze 42, 43 jeweils an einem Träger 44 (Fig. 5) befestigt. Über die Halterung 40 und einen Hebel 45, der jeweils an dem Träger 44 gelagert ist, können die Falzwalzen 39 durch einen beispielsweise pneumatisch betriebenen Zylinder 46 bewegt werden. Nachdem die Bleche 26 durch eine gemeinsame Schiene 48 in Richtung des Pfeiles 37 soweit gegen die Bleche 25 bewegt worden sind, daß die Falzbögen 9 beim Eindringen der Falzmesser 47 straff gehalten werden, werden die Falzwalzen 39 in eine Position 39' bewegt, um das Eindrücken der Falzbögen 9 durch die Falzmesser 47 zu erleichtern. Dabei wird nur jeweils eine Hälfte (d.h. gemäß Fig. 5 die untere Hälfte) in Richtung 34 wegbewegt, während die andere Hälfte (d.h. die obere Hälfte) zwischen den Blechen 23 und 24 eingeklemmt bleibt, so daß eine genaue Falzung erzielt wird. Die Falzmesser 47 sind gemeinsam an einer Schiene 49 (vgl. Fig. 3) befestigt und werden in Richtung des Pfeiles 37 (Fig. 5) in eine Position 47' bewegt, so daß die abgewinkelten Enden der Falzmesser 47 in die Falzbögen 9 hineinstoßen und sie eindrücken.The folding units 8 each have a folding roller 38 which is fixedly but rotatably mounted in the respective sheet 24. Each of the folding rollers 38 is assigned a further folding roller 39 which is also rotatably mounted in a fork-shaped holder 40. However, the folding roller 39 can also be moved laterally by the holder 40. The bracket 40 is guided between the sheets 25 and sheets 41 and blocks 42 and 43 (Fig. 4) longitudinally. The blocks 42, 43 are each fastened to a carrier 44 (FIG. 5). The folding rollers 39 can be moved by means of a pneumatically operated cylinder 46, for example, via the holder 40 and a lever 45, which is mounted on the carrier 44. After the sheets 26 have been moved so far against the sheets 25 by a common rail 48 in the direction of arrow 37 that the folding sheets 9 are held taut when the folding knives 47 penetrate, the folding rollers 39 are moved into a position 39 'in order to impress them the folding sheets 9 by the folding knife 47 to facilitate. Only one half (i.e. the lower half according to FIG. 5) is moved away in the direction 34, while the other half (i.e. the upper half) remains clamped between the sheets 23 and 24, so that an exact fold is achieved. The folding blades 47 are jointly fastened to a rail 49 (cf. FIG. 3) and are moved in the direction of the arrow 37 (FIG. 5) into a position 47 ', so that the angled ends of the folding blades 47 push into the folding sheets 9 and push them in.

Um die Falzmesser 47 bei jeder Stärke der Falzbögen 9 mittig zwischen den Falzwalzen 38, 39 einzustellen, sind die Falzmesser 47 durch Ritzel 50, Zahnstangen 51 über Führungen (vgl. Fig. 3) so angeordnet, daß sie sich in die Richtung des Pfeiles 37 bewegen lassen. Anschließend werden die Falzwalzen 39 durch die Zylinder 46 aus der Position 39' heraus in Richtung des Pfeiles 34 in die Position 39 bewegt und erzeugen als Abschluß des Falzvorgangs den Falzbruch.In order to set the folding knives 47 centrally between the folding rollers 38, 39 for each thickness of the folding sheets 9, the folding knives 47 are arranged by pinions 50, toothed racks 51 via guides (cf. FIG. 3) in such a way that they move in the direction of the arrow 37 let move. The folding rollers 39 are then moved through the cylinders 46 moved from position 39 'in the direction of arrow 34 to position 39 and produce the fold break at the end of the folding process.

Nach Abschluß des Falzvorgangs, d.h. nach Erzeugung des Falzbruchs, wird der Luftdruck in den Zylindern 46 soweit reduziert, daß die Falzbögen 9 durch die Drehung der Falzwalzen 38, 39 weitertransportiert werden. Gleichzeitig werden die Falzmesser 47 aus den Positionen 47' in ihre Ausgangslage zurückgezogen. Die Anschläge 28 (Fig. 3) werden über eine gemeinsame Schiene 58 in eine Position 28' (Fig. 5) gefahren, um die gefalzten Falzbögen 9 abzustützen. Gleichzeitig werden die Falzwalzen 39 über Stirnräder 53, 54 und Kettenräder 55 (Fig. 3, 5, 8) in Richtung eines Pfeiles 56 (Fig. 5, 7) angetrieben, während die Falzwalzen 38 durch die Reibung mit den Falzbögen 9 in Bewegung gesetzt werden. Die Kettenräder 55 werden über eine gemeinsame Kette 57 (Fig. 5, 7) angetrieben. Dadurch gelangen die gefalzten Falzbögen 9 in eine Position 9'' zwischen die Bleche 41 und Bleche 59, wie insbesondere aus Fig. 6 und Fig. 7 zu entnehmen ist. In dieser Lage werden die Falzbögen 9, nachdem die Anschläge 28 (Fig. 9) aus der Position 28' in die Ausgangsposition 28 zurückgefahren sind, von Zahnriemenpaaren 60 in einer Position 60' erfaßt. Die Zahnriemenpaare 60 werden jeweils über Antriebsrollen 601, 602 bewegt, die über eine (hier nicht dargestellte) Zahnstange analog zu den Transportwalzen 17 aus der Position 60 in die Position 60' bewegt werden. Aus dieser Position werden die Falzbögen 9 über Führungszungen 61 (Fig. 3) weitertransportiert und beispielsweise einer Vorrichtung zum Stapeln von Druckprodukten, wie sie aus der DE 38 11 289 C2 bekannt ist, zugeführt.After the folding process has been completed, i.e. after generation of the fold break, the air pressure in the cylinders 46 is reduced to such an extent that the folded sheets 9 are transported further by the rotation of the folding rollers 38, 39. At the same time, the folding blades 47 are withdrawn from their positions 47 'into their starting position. The stops 28 (FIG. 3) are moved via a common rail 58 into a position 28 ′ (FIG. 5) in order to support the folded folded sheets 9. At the same time, the folding rollers 39 are driven via spur gears 53, 54 and chain wheels 55 (FIGS. 3, 5, 8) in the direction of an arrow 56 (FIGS. 5, 7), while the folding rollers 38 are set in motion by the friction with the folding sheets 9 become. The chain wheels 55 are driven via a common chain 57 (FIGS. 5, 7). As a result, the folded folded sheets 9 come into a position 9 ″ between the sheets 41 and sheets 59, as can be seen in particular from FIGS. 6 and 7. In this position, after the stops 28 (FIG. 9) have moved back from the position 28 'into the starting position 28, the toothed sheets 9 are gripped by pairs of toothed belts 60 in a position 60'. The pairs of toothed belts 60 are each moved via drive rollers 601, 602, which are moved from position 60 to position 60 'via a rack (not shown here) analogous to the transport rollers 17. From this position, the folded sheets 9 are transported further via guide tongues 61 (FIG. 3) and, for example, fed to a device for stacking printed products, as is known from DE 38 11 289 C2.

Falzeinheiten, die wie die in Fig. 1 bis Fig. 9 beschriebenen Falzeinheiten 8 aufgebaut sind, lassen sich hintereinanderschalten, um die Falzbögen 9 mehrfach zu falzen. Ein Falzbogen 62 (Fig. 10) erhält in einer ersten Falzeinheit mit Hilfe von Falzwalzen 63, 64 und eines Falzmessers 65 (Fig. 11) seinen ersten Querfalz entlang einer Falzlinie 66 (Fig. 10). Darauf erhält er einen zweitenFolding units which are constructed like the folding units 8 described in FIGS. 1 to 9 can be connected in series in order to fold the folding sheets 9 several times. A folding sheet 62 (FIG. 10) receives its first transverse fold along a folding line 66 (FIG. 10) in a first folding unit with the aid of folding rollers 63, 64 and a folding knife 65 (FIG. 11). Then he receives a second one

Querfalz entlang einer Falzlinie 67 mit Hilfe einer zweiten Falzstation, die Falzwalzen 68, 69 und ein Falzmesser 70 (Fig. 10, 11) aufweist. In einer dritten Falzstation wird ein Längsfalz entlang einer Falzlinie 71 (Fig. 10) mittels Falzwalzen 72, 73 (Fig. 10, 11) und eines Falzmessers 74 (Fig. 11) erzeugt. Derartige Falzstationen lassen sich in beliebiger Reihenfolge hintereinander anordnen.Cross fold along a folding line 67 with the aid of a second folding station which has folding rollers 68, 69 and a folding knife 70 (FIGS. 10, 11). In a third folding station, a longitudinal fold is produced along a folding line 71 (FIG. 10) by means of folding rollers 72, 73 (FIGS. 10, 11) and a folding knife 74 (FIG. 11). Such folding stations can be arranged one after the other in any order.

Auf diese Weise arbeitet erfindungsgemäß eine Vielzahl von Falzstationen 8 parallel, die einfach aufgebaut sind und eine beträchtliche Anzahl von Falzbögen 9 gleichzeitig verarbeiten. Gegenüber einem rein seriell arbeitenden Falzapparat steht in dem parallel arbeitenden Falzapparat für jeden Falzvorgang mehr Zeit zur Verfügung, so daß er sich genau steuern läßt. Durch Hintereinanderschaltung von Falzstationen, wie sie in Fig. 10, 11 dargestellt sind, lassen sich beliebige Spezialfalzungen erzeugen.In this way, according to the invention, a plurality of folding stations 8 work in parallel, which are simple in construction and process a considerable number of folding sheets 9 simultaneously. Compared to a purely serial folding device, there is more time available for each folding process in the parallel folding device, so that it can be controlled precisely. Any special folds can be produced by connecting folding stations in series, as shown in FIGS. 10, 11.

Claims (8)

  1. Folding device for a rotary printing machine for folding folded sheets (9) or packs of folded sheets, which are fed individually and serially to an upstream conveying device (3, 140), which is suitable for the simultaneous supply of a plurality of folded sheets (9) or packs of folded sheets, substantially perpendicularly to the serial supply, to folding units (8), the surfaces of the folded sheets (9) or the packs of folded sheets facing parallel to each other, having means (23-28, 31, 32, 41) for positioning and fixing the folded sheets (9) or the packs of folded sheets, folding rollers (38, 39) arranged in pairs and folding blades (47), which can be passed through between the folding rollers (38, 39) for the folding in common of the folded sheets (9) with their surfaces facing each other or of the packs of folded sheets, the number of folding units (8) with the means (24-28, 31, 32, 41), the pairs of folding rollers (38, 39) and the folding blades (47) respectively corresponding to the maximum number of folded sheets (9) or packs of folded sheets which can be simultaneously processed.
  2. Folding device in accordance with claim 1, characterised in that the conveying device is constructed of a gripper chain (3) for feeding the folded sheets (9) or the folded sheet copies from a batch (2) or from storage cassettes (140) in carrier structures (10, 11).
  3. Folding device in accordance with claim 1 or 2, characterised in that the positioning means have first plates (23, 24) and second plates (25, 41), one half of the folded sheets (9) or packs of folded sheets being able to be clamped between the first plates (23, 24) and the other half being able to be locked between the second plates (25, 41), in such a way that it can be drawn out from these by the movement of the folding blade (47), in order to initiate the folding process.
  4. Folding device in accordance with claims 1 to 3, characterised in that the pairs of folding rollers respectively comprise a fixed-position folding roller (38) and a laterally movable folding roller (39), the letter being movable away from the fixed folding rollers (38) in order to facilitate the penetration of the folded sheets (9) or packs of folded sheets by the folding blade (47).
  5. Folding device in accordance with one of claims 1 to 4, characterised in that the transversely movable folding rollers (39) can be moved together using a pneumatic cylinder (46).
  6. Folding device in accordance with one of claims 1 to 5, characterised in that the folding blades (47) are movable together using rack (51) and pinion (50) gearing.
  7. Folding device in accordance with claim 6, characterised in that the folding blades (47) are fixed together to a rail (49).
  8. Process for folding for a rotary printing machine with individual and serial supplies of folded sheets (9) or packs of folded sheets to a conveying device (3, 140), in which the folded sheets (9) or packs of folded sheets with their surfaces facing parallel to each other are fed by means of the conveying device (3, 140) simultaneously to a number of folding units (8) corresponding to its maximum number, by feeding the sheets into the folding units in a direction substantially perpendicular to their direction of transportation with their surfaces facing parallel to each other, and positioning and fixing them in them, the sheets being passed in pairs between folding rollers (38, 39) via folding blades (47), the number of folding units (8) with the means (24-28, 31, 32, 41) for positioning and fixing the folded sheets (9) or packs of folded sheets, the pairs of folding rollers (38, 39) and the folding blades (47) respectively corresponding to the maximum number of folded sheets (9) or packs of folded sheets which can be simultaneously processed.
EP93111063A 1992-07-17 1993-07-10 Folding device Expired - Lifetime EP0583602B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4223524 1992-07-17
DE4223524A DE4223524A1 (en) 1992-07-17 1992-07-17 Folder

Publications (2)

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EP0583602A1 EP0583602A1 (en) 1994-02-23
EP0583602B1 true EP0583602B1 (en) 1996-10-02

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EP93111063A Expired - Lifetime EP0583602B1 (en) 1992-07-17 1993-07-10 Folding device

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US (1) US5437442A (en)
EP (1) EP0583602B1 (en)
JP (1) JPH06183639A (en)
DE (2) DE4223524A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE178022T1 (en) * 1994-06-07 1999-04-15 Ferag Ag DEVICE FOR PRODUCING PRINTED PRODUCTS
US7066871B1 (en) 2003-06-05 2006-06-27 Bescorp, Inc. Folder with set feeder and telescoping stacker
US7044902B2 (en) * 2003-12-09 2006-05-16 Quad/Tech, Inc. Printing press folder and folder components
KR101133161B1 (en) * 2010-08-23 2012-04-20 주식회사 비즈테크원 Folding apparatus for booklet finisher

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Publication number Priority date Publication date Assignee Title
US1085280A (en) * 1913-06-17 1914-01-27 Henry A Maley Method of handling sheets.
US3117777A (en) * 1962-03-13 1964-01-14 Funk Rudolph Apparatus for cross folding flexible sheets
US3749394A (en) * 1970-10-07 1973-07-31 Mccain Mfg Co Folding machines
DE3027342C2 (en) * 1980-07-18 1982-08-19 Maschinenbau Oppenweiler Binder GmbH & Co, 7155 Oppenweiler Device for pivoting the sword in its longitudinal axis and for adjusting the depth of the sword on knife folding machines
DE3321811C2 (en) * 1983-06-16 1986-01-02 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Folder for web-fed rotary printing machines
DE3427559C2 (en) * 1984-07-26 1986-08-07 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Device for the takeover and further transport of folded products
JPS6137667A (en) * 1984-07-31 1986-02-22 Hitachi Seiko Ltd Chopper blade drive mechanism for two row chopper mechanism in printer
DE3621832C1 (en) * 1986-06-28 1987-09-17 Roland Man Druckmasch Device for receiving and continuing folding products
DE3621820A1 (en) * 1986-06-28 1988-01-07 Roland Man Druckmasch FOLDING AND TRANSPORT DEVICE
DE3805877A1 (en) * 1988-02-25 1989-08-31 Roland Man Druckmasch ADDRESSING DEVICE FOR PRODUCTS, ESPECIALLY FOR FOLDING PRODUCTS
US5129781A (en) * 1988-04-02 1992-07-14 Man Roland Druckmaschinen Ag Apparatus for receiving, storing and processing printed products
US4909779A (en) * 1988-08-29 1990-03-20 Schaffron Helmut T Bag stacking machine
AU628368B2 (en) * 1988-09-09 1992-09-17 Ferag Ag Method and means for the further processing of printing products
AU626314B2 (en) * 1988-09-09 1992-07-30 Ferag Ag Method and means for tabloid further processing
DE3915228A1 (en) * 1989-05-10 1990-11-15 Roland Man Druckmasch DEVICE FOR TAKING FOLDED PRODUCTS FROM A SUPPORT STRUCTURE

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Publication number Publication date
US5437442A (en) 1995-08-01
DE4223524A1 (en) 1994-01-20
JPH06183639A (en) 1994-07-05
EP0583602A1 (en) 1994-02-23
DE59304033D1 (en) 1996-11-07

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