EP1925579A1 - Blade folding machine with upstream folding device and method for folding printed sheets - Google Patents

Blade folding machine with upstream folding device and method for folding printed sheets Download PDF

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Publication number
EP1925579A1
EP1925579A1 EP07120234A EP07120234A EP1925579A1 EP 1925579 A1 EP1925579 A1 EP 1925579A1 EP 07120234 A EP07120234 A EP 07120234A EP 07120234 A EP07120234 A EP 07120234A EP 1925579 A1 EP1925579 A1 EP 1925579A1
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EP
European Patent Office
Prior art keywords
sheet
folding
folding machine
folder
machine according
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
EP07120234A
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German (de)
French (fr)
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EP1925579B1 (en
Inventor
Udo Ganter
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Heidelberger Druckmaschinen AG
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Heidelberger Druckmaschinen AG
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Publication of EP1925579A1 publication Critical patent/EP1925579A1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • 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
    • 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
    • B65H45/14—Buckling folders
    • B65H45/142—Pocket-type folders
    • 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
    • B65H45/14—Buckling folders
    • B65H45/142—Pocket-type folders
    • B65H45/148—Pocket-type folders diverters therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/13—Parts concerned of the handled material
    • B65H2701/132—Side portions
    • B65H2701/1321—Side portions of folded article or web
    • B65H2701/13212—Fold, spine portion of folded article

Definitions

  • the invention relates to a folding machine with Taschenfalzwerken and Schwertfalzwerken, on which both the so-called English four-breaker and the German quadruple can be produced.
  • Pocket folding machines and Schwertfalzmaschinen are known from the prior art.
  • the combination of pocket folding machines with Schwertfalzmaschinen is common as Kombifalzmaschine.
  • parallel folds are folded in pocket folders and cross breaks in the subsequent knife folders.
  • the sheet passes through at least the following stations in the feed-through direction of the combination folding machine: feeder, transfer table, pocket folder, knife folder, delivery arm.
  • the sheet travel direction of the sheet in the transfer table corresponds to the passage direction of the combination folding machine.
  • Common folding products, which are produced on combination folding machines, are the so-called English and the German quadruple. Both have in common that following a first parallel fracture in an upper pocket folder three cross fractures in Schwertfalzmaschineen and so a thirty-two-page brochure is made.
  • the assembly with a total of four Schwertfalzwerken and in particular the sliding or pivoting last folding unit causes high machine costs and requires because of the necessary accessibility of the Schwertfalztechnike for operation and adjustment a larger machine footprint. Furthermore, there must be space for a display on both sides of the machine.
  • Kombifalzmaschinen which have an additional folding pocket between the first and second blade folder and thus allow a greater number of folding variants.
  • pocket folders In addition to conventional folding pockets, pocket folders also use special folding pockets.
  • the EP 0511574A1 describes a bag for collecting and folding several sheets together.
  • the bag is designed so that the bows can run in with their entire length. Once all are accumulated together to be folded sheets, the sheets are conveyed together by means of a pusher from the collection bag into the subsequent folding unit. With the help of a Bogenschreib issued or a code reading device, the collection process is controlled. It is also possible to allow only single bow to run into the bag and push out immediately. The sheet is then transported on with the former trailing edge ahead.
  • the folder has a turning device, a conveyor and two inputs to perform different folds with the same folder can. In this case, a folding of each of the two surface sides is possible.
  • the fold type is determined by the choice of the input.
  • This structure is suitable for a single sword folding, but can hardly integrate into a Schwertfalzmaschine with multiple folders, since here the sheet transport direction is determined by the arrangement of the folding units.
  • Object of the present invention is to provide a combination folding machine with only three Schwertfalzwerken, which allows the production of English and German Vierbruchs and to provide an associated method for their preparation, said device and methods overcome the disadvantages of the prior art.
  • a folding machine with a device for changing the arrangement of Bogenvorder- and trailing edge relative to the sheet conveying direction according to claim 1 and with a method of folding the German Vierbruchs according to claim 10.
  • the flexibility of the machine and the number of possible folding types are doing significantly increased.
  • the invention is therefore based on the idea to further develop a combination folding machine with three Schwertfalzwerken and a folding pocket between the first and second Schwertfalzwerk that with the help of a device for changing the arrangement of Bogenvorder- and trailing edge relative to the sheet conveying direction of both the English and the German quadruple can be folded.
  • the device for changing the arrangement of the Bogenvorder- and trailing edge relative to the sheet conveying direction is in this case instead of the folding pocket between the first and second sword folder.
  • the ejection device consists of a device with compression spring, which is biased by the kinetic energy of the incoming sheet.
  • the combination folding machine in the second blade folder has an alignment device for the exact alignment of the sheet.
  • the alignment device is composed of a front and rear alignment unit, which are each designed to be displaceable along the sheet conveying direction.
  • the correct position of the sheet under the second sword folder is determined by the position of the third cross-break relative to the sheet side edge: The alignment of the second sword folder so serve to align the sheet longitudinally to the third folding sword.
  • a further embodiment of the invention has at least one pocket folder arranged upstream of the folder folders and a third folder folder, wherein the first folder folder is arranged centrally, and the second and third folder folders are arranged on the left in the sheet passage direction.
  • Such a folding machine allows the folding of sheets to the so-called German quarry in a particularly advantageous manner.
  • a sheet is folded parallel in an upper pocket folder, further transported to a first center in the direction of flow sword folder and learns there his first cross-break.
  • the folded sheet is further transported in a device for changing the arrangement of Bogenvorder- and trailing edge relative to the sheet conveying direction and from there to a second in the direction of passage on the left Schwertfalzwerk.
  • the second cross-fold is folded, then the sheet is transported further to a third left-hand in the direction of flow Schwertfalzwerk, where the third cross-fold is folded.
  • English and German quadruples are folded according to the prior art on a folding machine with a configuration as shown in Fig. 1a.
  • the bow first passes through the pocket folder, followed by a centrally arranged knife folder.
  • the two longitudinal folders left in the direction of passage are subsequently passed through.
  • the two sword folders located in the direction of flow on the right are traversed.
  • Fig. 1b shows a configuration of a combination folding machine which serves as a starting point for the present invention.
  • the combination folding machine is equipped with several pocket folders and three knife folders, with a folding pocket between the first knife folder and the second knife folder.
  • This pocket folder is replaced in the present invention by a device for changing the arrangement of the sheet leading edge and the sheet trailing edge relative to the sheet conveying direction.
  • a second and third sword folder are located in the sheet passing direction on the left.
  • Fig. 2 shows an embodiment of the machine according to the invention according to claim 1 and in particular the integration of the device for changing the arrangement of the sheet leading edge and the sheet trailing edge relative to the sheet conveying direction in the machine.
  • a parallel folded in Taschenfalzwerken bow becomes a first Transported Schwertfalzwerk and pressed by the sword 1 with a sword movement a between the folding rollers 3.1 and 3.2 and folded there.
  • the sheet is transported downwards with the breaking edge.
  • a baffle 4 the sheet is passed between the opposite pair of rollers 5.1 and 5.2. These then convey him with the breaking edge in advance in a pocket, which is part of the device for changing the arrangement of the sheet leading and trailing edge relative to the sheet conveying direction 7.
  • a front alignment unit 10.2, a rear alignment unit 10.1 and a sheet trailing edge guide 10.3 position the arch for the second cross fracture.
  • 10.1, 10.2 and 10.3 along the sheet conveying direction A are adjustable in an adjustment b.
  • the sheet is transported by the transport device 11 to the front alignment unit 10.2 and drives there against a stop.
  • the bow is guided at its rear end by the sheet trailing edge guide 10.3.
  • a stop is brought into effective position on the rear alignment unit 10.1. This allows the sheet to be aligned with its closed trailing edge.
  • the distance between the stops of front alignment unit 10.2 and rear alignment unit 10.1 corresponds to the arc length.
  • sensors 12 are used in a manner known to those skilled in the art. After the second cross-rupture of the sheet is transported in the sheet conveying direction A in the direction of the defined, usually central position of the third Schwertfalzwerkes I.
  • a switch (not shown) is adjusted so that the sheet does not enter the device 7 and the arrangement of Bogenvorder- and trailing edge relative to the sheet conveying direction are not changed .
  • the sheet passes through the pair of rollers 5.1, 5.2, then 5.2, 5.3 and the pair of knife shafts 6.1, 6.2, to go directly to the second blade folder.
  • stops 10.1 and 10.2 also allows that the stop edges z. B. can be folded down by rotational movement (position as 10.1 in Fig. 2). This is necessary if, after the 1st cross break, no further follows and the folded sheets are removed with the transport device 11 directly under the sword 2 from the machine.

Landscapes

  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)

Abstract

The machine has a pocket folding mechanism, and blade folding mechanisms (1, 2) consecutively arranged perpendicular to each other in a material flow direction. A changing device (7) is placed between the blade folding mechanisms for changing an arrangement of sheet front and rear edges relative to a sheet conveying direction (A). The changing device has a case with an ejection device (8), which is electrically or pneumatically operatable. Rear and front alignment devices (10.1, 10.2) and a sheet rear edge guide (10.3) are provided for exact alignment of the sheet. An independent claim is also included for a method for folding a sheet of a printing substrate.

Description

Die Erfindung betrifft eine Falzmaschine mit Taschenfalzwerken und Schwertfalzwerken, auf welcher sowohl der so genannte Englische Vierbruch als auch der Deutsche Vierbruch hergestellt werden können.The invention relates to a folding machine with Taschenfalzwerken and Schwertfalzwerken, on which both the so-called English four-breaker and the German quadruple can be produced.

Stand der TechnikState of the art

Aus dem Stand der Technik sind Taschenfalzmaschinen und Schwertfalzmaschinen bekannt. Die Kombination von Taschenfalzmaschinen mit Schwertfalzmaschinen ist als Kombifalzmaschine geläufig. Dabei werden in Taschenfalzwerken Parallelbrüche und in den nachfolgenden Schwertfalzwerken Kreuzbrüche gefalzt. Der Bogen durchläuft dabei in Durchlaufrichtung der Kombifalzmaschine mindestens folgende Stationen: Anleger, Übergabetisch, Taschenfalzwerk, Schwertfalzwerk, Ausleger. Die Bogenlaufrichtung des Bogens im Übergabetisch entspricht der Durchlaufrichtung der Kombifalzmaschine. Gängige Falzprodukte, die auf Kombifalzmaschinen hergestellt werden, sind der so genannte Englische und der Deutsche Vierbruch. Beiden gemein ist, dass auf einen ersten Parallelbruch in einem oberen Taschenfalzwerk drei Kreuzbrüche in Schwertfalzwerken folgen und so eine zweiunddreißigseitige Broschur gefertigt wird.
Beim Englischen Vierbruch werden ein erstes mittiges Schwertfalzwerk und zwei weitere in Durchlaufrichtung links liegende Schwertfalzwerke durchlaufen.
Beim Deutschen Vierbruch werden ein erstes mittiges Schwertfalzwerk und zwei weitere in Durchlaufrichtung rechts liegende Schwertfalzwerke durchlaufen.
Sollen Englischer und Deutscher Vierbruch auf einer Maschine gefertigt werden können, um die Flexibilität hinsichtlich der Auftragsgestaltung zu erhöhen, so kommen nach dem Stand der Technik Kombifalzmaschinen zum Einsatz, welche in Durchlaufrichtung nach dem mittigen Schwertfalzwerk sowohl je ein links als auch ein rechts liegendes Schwertfalzwerk besitzen. Das Schwertfalzwerk für den dritten Kreuzbruch lässt sich in Ausführungen nach dem Stand der Technik durch eine Schwenk-, Dreh- oder Schiebebewegung sowohl in eine in Durchlaufrichtung rechte als auch linke Position verbringen.
Die Bestückung mit insgesamt vier Schwertfalzwerken und insbesondere dem verschieb-oder verschwenkbaren letzten Falzwerk verursacht hohe Maschinenkosten und erfordert wegen der notwendigen Zugänglichkeit der Schwertfalzwerke zur Bedienung und Einstellung eine größere Maschinenstellfläche. Weiter muss auf beiden Seiten der Maschine Platz für eine Auslage sein.Pocket folding machines and Schwertfalzmaschinen are known from the prior art. The combination of pocket folding machines with Schwertfalzmaschinen is common as Kombifalzmaschine. In this process, parallel folds are folded in pocket folders and cross breaks in the subsequent knife folders. The sheet passes through at least the following stations in the feed-through direction of the combination folding machine: feeder, transfer table, pocket folder, knife folder, delivery arm. The sheet travel direction of the sheet in the transfer table corresponds to the passage direction of the combination folding machine. Common folding products, which are produced on combination folding machines, are the so-called English and the German quadruple. Both have in common that following a first parallel fracture in an upper pocket folder three cross fractures in Schwertfalzwerken and so a thirty-two-page brochure is made.
At the English quarry, a first central knife folder and two other knife folders left in the direction of passage are passed through.
At the German "Vierbruch" a first central knife folder and two other knife folders lying on the right in the direction of passage are passed through.
If English and German quadruples are to be manufactured on one machine in order to increase the flexibility with regard to the order design, state-of-the-art combination folding machines are used, which each have a left and a right knife folder in the direction of travel after the central knife folder , The Schwertfalzwerk for the third cross-break can be in versions of the prior art by a pan, turn or Move sliding movement both in a right-hand and left-hand in the direction of passage.
The assembly with a total of four Schwertfalzwerken and in particular the sliding or pivoting last folding unit causes high machine costs and requires because of the necessary accessibility of the Schwertfalzwerke for operation and adjustment a larger machine footprint. Furthermore, there must be space for a display on both sides of the machine.

Auch bekannt sind Kombifalzmaschinen, welche zwischen dem ersten und zweiten Schwertfalzwerk eine zusätzliche Falztasche aufweisen und damit eine größere Anzahl an Falzvarianten erlauben.Also known are Kombifalzmaschinen, which have an additional folding pocket between the first and second blade folder and thus allow a greater number of folding variants.

Neben konventionellen Falztaschen kommen in Taschenfalzmaschinen auch Sonderfalztaschen zum Einsatz. Die EP 0511574A1 beschreibt eine Tasche zum Sammeln und gemeinsamen Falzen von mehreren Bogen. Dabei ist die Tasche so ausgebildet, dass die Bogen mit ihrer ganzen Länge einlaufen können. Sobald alle gemeinsam zu falzenden Bogen angesammelt sind, werden die Bogen gemeinsam mittels einer Schubvorrichtung aus der Sammeltasche in das nachfolgende Falzwerk befördert. Mit Hilfe einer Bogenzähleinrichtung oder einer Code-Leseeinrichtung wird der Sammelprozess kontrolliert. Auch möglich ist es, nur einzelne Bogen in die Tasche laufen zulassen und sofort wieder auszuschieben. Der Bogen wird dann mit der ehemaligen Hinterkante voran weitertransportiert.In addition to conventional folding pockets, pocket folders also use special folding pockets. The EP 0511574A1 describes a bag for collecting and folding several sheets together. The bag is designed so that the bows can run in with their entire length. Once all are accumulated together to be folded sheets, the sheets are conveyed together by means of a pusher from the collection bag into the subsequent folding unit. With the help of a Bogenzähleinrichtung or a code reading device, the collection process is controlled. It is also possible to allow only single bow to run into the bag and push out immediately. The sheet is then transported on with the former trailing edge ahead.

Aus der DE 2940360A1 ist ein Einzelschwertfalzwerk zum Falzen von bedruckten und vorgefalzten Bogen bekannt. Das Falzwerk besitzt eine Wendevorrichtung, eine Fördereinrichtung und zwei Eingänge, um mit demselben Falzwerk verschiedene Falze durchführen zu können. Dabei ist ein Falzen von jeder der beiden Oberflächenseiten her möglich. Die Falzart wird durch die Wahl des Eingangs bestimmt.
Dieser Aufbau eignet sich für ein Einzelschwertfalzwerk, lässt sich in eine Schwertfalzmaschine mit mehreren Falzwerken jedoch kaum integrieren, da hier die Bogentransportrichtung durch die Anordnung der Falzwerke vorgegeben ist.From the DE 2940360A1 is a single sword folding machine for folding of printed and pre-folded sheet known. The folder has a turning device, a conveyor and two inputs to perform different folds with the same folder can. In this case, a folding of each of the two surface sides is possible. The fold type is determined by the choice of the input.
This structure is suitable for a single sword folding, but can hardly integrate into a Schwertfalzmaschine with multiple folders, since here the sheet transport direction is determined by the arrangement of the folding units.

Aufgabenstellungtask

Aufgabe der vorliegenden Erfindung ist es, eine Kombifalzmaschine mit nur drei Schwertfalzwerken zu schaffen, welche die Herstellung des Englischen und des Deutschen Vierbruchs erlaubt sowie ein zugehöriges Verfahren zu deren Herstellung zu schaffen, wobei Vorrichtung und Verfahren die Nachteile des Standes der Technik beheben.Object of the present invention is to provide a combination folding machine with only three Schwertfalzwerken, which allows the production of English and German Vierbruchs and to provide an associated method for their preparation, said device and methods overcome the disadvantages of the prior art.

Gelöst wird diese Aufgabe erfindungsgemäß durch eine Falzmaschine mit einer Vorrichtung zur Änderung der Anordnung der Bogenvorder- und Hinterkante relativ zur Bogenförderrichtung nach Anspruch 1 und mit einem Verfahren zum Falzen des Deutschen Vierbruchs nach Anspruch 10. Die Flexibilität der Maschine und die Zahl möglicher Falzarten werden dabei wesentlich erhöht.This object is achieved according to the invention by a folding machine with a device for changing the arrangement of Bogenvorder- and trailing edge relative to the sheet conveying direction according to claim 1 and with a method of folding the German Vierbruchs according to claim 10. The flexibility of the machine and the number of possible folding types are doing significantly increased.

Der Erfindung liegt damit die Überlegung zugrunde, eine Kombifalzmaschine mit drei Schwertfalzwerken und einer Falztasche zwischen dem ersten und zweiten Schwertfalzwerk so weiter zu entwickeln, dass mit Hilfe einer Vorrichtung zur Änderung der Anordnung der Bogenvorder- und -hinterkante relativ zur Bogenförderrichtung sowohl der Englische als auch der Deutsche Vierbruch gefalzt werden können. Die Vorrichtung zur Änderung der Anordnung der Bogenvorder- und -hinterkante relativ zur Bogenförderrichtung befindet sich dabei anstelle der Falztasche zwischen dem ersten und zweiten Schwertfalzwerk. Nach dem ersten Kreuzbruch wird ein Bogen in die Vorrichtung zur Änderung der Bogenvorderkante und der Bogenhinterkante relativ zur Bogenförderrichtung transportiert. Ein Walzenpaar schiebt den Bogen mit seiner Vorderkante voraus in eine Tasche. Sobald der Bogen ganz in die Tasche eingefahren ist, schiebt eine Auswurfvorrichtung den Bogen mit seiner ehemaligen Hinterkante voraus durch ein Walzenpaar weiter zum nächsten Schwertfalzwerk. Als besonders vorteilhaft wird dabei eine pneumatische Ansteuerung der Auswurfvorrichtung betrachtet.The invention is therefore based on the idea to further develop a combination folding machine with three Schwertfalzwerken and a folding pocket between the first and second Schwertfalzwerk that with the help of a device for changing the arrangement of Bogenvorder- and trailing edge relative to the sheet conveying direction of both the English and the German quadruple can be folded. The device for changing the arrangement of the Bogenvorder- and trailing edge relative to the sheet conveying direction is in this case instead of the folding pocket between the first and second sword folder. After the first cross-rupture, a sheet is transported into the apparatus for changing the sheet leading edge and the sheet trailing edge relative to the sheet conveying direction. A pair of rollers pushes the bow with its front edge ahead in a bag. Once the sheet is completely retracted into the pocket, pushes an ejector the sheet with its former trailing edge ahead by a pair of rollers on to the next sword folder. As a particularly advantageous while a pneumatic control of the ejector is considered.

In einer bevorzugten Ausführungsform besteht die Auswurfvorrichtung aus einer Einrichtung mit Druckfeder, die durch die kinetische Energie des einfahrenden Bogens vorgespannt wird.In a preferred embodiment, the ejection device consists of a device with compression spring, which is biased by the kinetic energy of the incoming sheet.

Um den Einlauf der offenen Vorderkante des Bogens in die nachfolgenden Transportwalzen zu verbessern, besitzt eine vorteilhafte Ausführungsform im Bereich des Einlaufs gesteuerte Niederhaltefinger.In order to improve the entry of the open front edge of the sheet in the subsequent transport rollers, has an advantageous embodiment in the region of the inlet controlled Niederhaltefinger.

Gemäß einer bevorzugten Ausführungsform besitzt die Kombifalzmaschine im zweiten Schwertfalzwerk eine Ausrichtevorrichtung zum exakten Ausrichten des Bogens. Die Ausrichtevorrichtung setzt sich aus einer vorderen und hinteren Ausrichteeinheit zusammen, die je entlang der Bogenförderrichtung verschiebbar gestaltet sind.According to a preferred embodiment, the combination folding machine in the second blade folder has an alignment device for the exact alignment of the sheet. The alignment device is composed of a front and rear alignment unit, which are each designed to be displaceable along the sheet conveying direction.

Die richtige Position des Bogens unter dem zweiten Schwertfalzwerk wird dabei durch die Lage des dritten Kreuzbruches relativ zur Bogenseitenkante bestimmt: Die Ausrichteeinheiten des zweiten Schwertfalzwerkes dienen also dazu, den Bogen längsmittig zum dritten Falzschwert auszurichten.The correct position of the sheet under the second sword folder is determined by the position of the third cross-break relative to the sheet side edge: The alignment of the second sword folder so serve to align the sheet longitudinally to the third folding sword.

Eine weitere Ausgestaltungsart der Erfindung besitzt mindestens ein den Schwertfalzwerken vorgelagertes Taschenfalzwerk und ein drittes Schwertfalzwerk, wobei das erste Schwertfalzwerk mittig, das zweite und dritte Schwertfalzwerk links in Bogendurchlaufrichtung angeordnet sind. Eine derartige Falzmaschine erlaubt das Falzen von Bogen zum so genannten Deutschen Vierbruch in besonders vorteilhafter Weise. Ein Bogen wird in einem oberen Taschenfalzwerk parallel gefalzt, weitertransportiert zu einem ersten in Durchlaufrichtung mittig liegenden Schwertfalzwerk und erfährt dort seinen ersten Kreuzbruch. Der gefalzte Bogen wird weitertransportiert in eine Vorrichtung zur Änderung der Anordnung der Bogenvorder- und -hinterkante relativ zur Bogenförderrichtung und von dort weiter zu einem zweiten in Durchlaufrichtung links liegenden Schwertfalzwerk. Dort wird der zweite Kreuzbruch gefalzt, der Bogen anschließend weiter in ein drittes in Durchlaufrichtung links liegendes Schwertfalzwerk weitertransportiert, wo der dritte Kreuzbruch gefalzt wird.A further embodiment of the invention has at least one pocket folder arranged upstream of the folder folders and a third folder folder, wherein the first folder folder is arranged centrally, and the second and third folder folders are arranged on the left in the sheet passage direction. Such a folding machine allows the folding of sheets to the so-called German quarry in a particularly advantageous manner. A sheet is folded parallel in an upper pocket folder, further transported to a first center in the direction of flow sword folder and learns there his first cross-break. The folded sheet is further transported in a device for changing the arrangement of Bogenvorder- and trailing edge relative to the sheet conveying direction and from there to a second in the direction of passage on the left Schwertfalzwerk. There, the second cross-fold is folded, then the sheet is transported further to a third left-hand in the direction of flow Schwertfalzwerk, where the third cross-fold is folded.

Hinsichtlich weiterer vorteilhafter Ausgestaltungen der Erfindung wird auf die Unteransprüche sowie die Beschreibung eines Ausführungsbeispiels unter Bezugnahme auf die beiliegenden Zeichnungen verwiesen.With regard to further advantageous embodiments of the invention, reference is made to the dependent claims and the description of an embodiment with reference to the accompanying drawings.

Ausführungsbeispielembodiment

Die Erfindung soll an Hand eines Ausführungsbeispiels noch näher erläutert werden. Es zeigen

Fig. 1a
eine Konfiguration einer Kombifalzmaschine mit fünf Schwertfalzwerken gemäß dem Stand der Technik
Fig. 1b
eine Konfiguration einer Kombifalzmaschine mit Falztasche gemäß dem Stand der Technik
Fig. 2
einen Ausschnitt der erfindungsgemäßen Falzmaschine in einer Schnittdarstellung
The invention will be explained in more detail with reference to an embodiment. Show it
Fig. 1a
a configuration of a Kombifalzmaschine with five Schwertfalzwerken according to the prior art
Fig. 1b
a configuration of a Kombifalzmaschine with folding pocket according to the prior art
Fig. 2
a section of the folding machine according to the invention in a sectional view

Englischer und Deutscher Vierbruch werden nach dem Stand der Technik auf einer Falzmaschine mit einer wie in Fig. 1a gezeigten Konfiguration gefalzt. Dabei durchläuft der Bogen zuerst das Taschenfalzwerk, anschließend ein mittig angeordnetes Schwertfalzwerk. Zur Herstellung des Englischen Vierbruchs werden im Anschluss die zwei in Durchlaufrichtung links liegenden Schwertfalzwerke durchlaufen. Zur Herstellung des Deutschen Vierbruchs werden die zwei in Durchlaufrichtung rechts liegenden Schwertfalzwerke durchlaufen.English and German quadruples are folded according to the prior art on a folding machine with a configuration as shown in Fig. 1a. The bow first passes through the pocket folder, followed by a centrally arranged knife folder. In order to produce the English quarries, the two longitudinal folders left in the direction of passage are subsequently passed through. For the production of the German quaternary, the two sword folders located in the direction of flow on the right are traversed.

Fig. 1b zeigt eine Konfiguration einer Kombifalzmaschine, welche als Ausgangspunkt für die vorliegende Erfindung dient. Die Kombifalzmaschine ist mit mehreren Taschenfalzwerken und drei Schwertfalzwerken ausgestattet, wobei zwischen dem ersten Schwertfalzwerk und dem zweiten Schwertfalzwerk eine Falztasche angebracht ist. Dieses Taschenfalzwerk wird in der vorliegenden Erfindung durch eine Vorrichtung zur Änderung der Anordnung der Bogenvorderkante und der Bogenhinterkante relativ zur Bogenförderrichtung ersetzt. Ein zweites und drittes Schwertfalzwerk befinden sich in Bogendurchlaufrichtung links.Fig. 1b shows a configuration of a combination folding machine which serves as a starting point for the present invention. The combination folding machine is equipped with several pocket folders and three knife folders, with a folding pocket between the first knife folder and the second knife folder. This pocket folder is replaced in the present invention by a device for changing the arrangement of the sheet leading edge and the sheet trailing edge relative to the sheet conveying direction. A second and third sword folder are located in the sheet passing direction on the left.

Fig. 2 zeigt ein Ausführungsbeispiel der erfindungsgemäßen Maschine nach Anspruch 1 und insbesondere die Integration der Vorrichtung zur Änderung der Anordnung der Bogenvorderkante und der Bogenhinterkante relativ zur Bogenförderrichtung in die Maschine. Ein in Taschenfalzwerken parallel gefalzter Bogen wird zu einem ersten Schwertfalzwerk transportiert und durch das Schwert 1 mit einer Schwertbewegung a zwischen die Falzwalzen 3.1 und 3.2 gepresst und dort gefalzt. Der Bogen wird mit der Bruchkante voraus nach unten transportiert. Durch ein Leitblech 4 wird der Bogen zwischen das gegenläufige Walzenpaar 5.1 und 5.2 geleitet. Diese befördern ihn dann mit der Bruchkante voraus in eine Tasche, welche Teil der Vorrichtung zur Änderung der Anordnung der Bogenvorder- und -hinterkante relativ zur Bogenförderrichtung 7 ist. Diese ist auf die Gesamtlänge des gefalzten Bogens eingestellt, so dass der Bogen ganz in die Tasche einfährt, wobei der Bogen das Walzenpaar 5.1, 5.2 verlässt. Dabei ist die kinetische Energie des Bogens ausreichend, um den Bogen ohne zusätzlichen Antrieb komplett in die Tasche zu befördern. Unter Zuhilfenahme einer Auswurfvorrichtung 8 wird der Bogen mit seiner ehemaligen Hinterkante voraus - also mit seiner offenen Seite voraus - zwischen die gegenläufig drehenden Walzen 5.2, 5.3 geschoben und weiter in Richtung des zweiten Kreuzbruches transportiert. Zur Verbesserung des Einlaufs der offenen Seite in die Walzen 5.2, 5.3 können im Bereich des Einlaufs gesteuerte Niederhaltefinger 9 zum Einsatz kommen. Ein nachgelagertes Messerwellenpaar 6.1, 6.2 kann der weiteren Bearbeitung des Bogens dienen. Mittels einer Transporteinrichtung 11 wird der Bogen weiter bis zum zweiten Falzschwert 2 transportiert. Eine vordere Ausrichteeinheit 10.2, eine hintere Ausrichteeinheit 10.1 und eine Bogenhinterkantenführung 10.3 positionieren den Bogen für den zweiten Kreuzbruch. Dabei sind 10.1, 10.2 und 10.3 entlang der Bogenförderrichtung A verstellbar in einer Verstellbewegung b. Der Bogen wird durch die Transporteinrichtung 11 bis zur vorderen Ausrichteeinheit 10.2 transportiert und fährt dort gegen einen Anschlag. Dabei wird der Bogen an seinem hinteren Ende von der Bogenhinterkantenführung 10.3 geführt. Sobald der Bogen mit seiner Vorderkante die vordere Ausrichteeinheit 10.2 berührt, wird an der hinteren Ausrichteeinheit 10.1 ein Anschlag in wirksame Position verbracht. Dadurch kann der Bogen an seiner geschlossenen Hinterkante ausgerichtet werden. Der Abstand der Anschläge von vorderer Ausrichteeinheit 10.2 und hinterer Ausrichteeinheit 10.1 entspricht der Bogenlänge. Zur Detektierung der Bogenposition kommen Sensoren 12 in einer dem Fachmann bekannten Weise zum Einsatz.
Nach dem zweiten Kreuzbruch wird der Bogen in Bogenförderrichtung A in Richtung der definierten, in der Regel mittigen Position des dritten Schwertfalzwerkes I weitertransportiert.Fig. 2 shows an embodiment of the machine according to the invention according to claim 1 and in particular the integration of the device for changing the arrangement of the sheet leading edge and the sheet trailing edge relative to the sheet conveying direction in the machine. A parallel folded in Taschenfalzwerken bow becomes a first Transported Schwertfalzwerk and pressed by the sword 1 with a sword movement a between the folding rollers 3.1 and 3.2 and folded there. The sheet is transported downwards with the breaking edge. Through a baffle 4, the sheet is passed between the opposite pair of rollers 5.1 and 5.2. These then convey him with the breaking edge in advance in a pocket, which is part of the device for changing the arrangement of the sheet leading and trailing edge relative to the sheet conveying direction 7. This is set to the total length of the folded sheet, so that the sheet completely retracts into the pocket, the sheet leaving the pair of rollers 5.1, 5.2. The kinetic energy of the bow is sufficient to carry the bow completely without additional drive into the bag. With the aid of an ejector 8, the sheet with its former trailing edge ahead - ie with its open side ahead - between the counter-rotating rollers 5.2, 5.3 pushed and further transported in the direction of the second cross-break. To improve the inlet of the open side into the rollers 5.2, 5.3, controlled hold-down fingers 9 can be used in the region of the inlet. A downstream knife shaft pair 6.1, 6.2 can serve the further processing of the bow. By means of a transport device 11, the sheet is further transported to the second folding blade 2. A front alignment unit 10.2, a rear alignment unit 10.1 and a sheet trailing edge guide 10.3 position the arch for the second cross fracture. In this case, 10.1, 10.2 and 10.3 along the sheet conveying direction A are adjustable in an adjustment b. The sheet is transported by the transport device 11 to the front alignment unit 10.2 and drives there against a stop. The bow is guided at its rear end by the sheet trailing edge guide 10.3. As soon as the sheet with its front edge touches the front alignment unit 10.2, a stop is brought into effective position on the rear alignment unit 10.1. This allows the sheet to be aligned with its closed trailing edge. The distance between the stops of front alignment unit 10.2 and rear alignment unit 10.1 corresponds to the arc length. For detecting the sheet position, sensors 12 are used in a manner known to those skilled in the art.
After the second cross-rupture of the sheet is transported in the sheet conveying direction A in the direction of the defined, usually central position of the third Schwertfalzwerkes I.

Soll auf der dargestellten Maschine kein Deutscher, sondern ein Englischer Vierbruch gefalzt werden, so wird eine Weiche (nicht dargestellt) so verstellt, dass der Bogen in die Vorrichtung 7 nicht einläuft und die Anordnung der Bogenvorder- und -hinterkante relativ zur Bogenförderrichtung nicht verändert werden. Vom ersten Schwertfalzwerk kommend durchläuft der Bogen das Walzenpaar 5.1, 5.2, danach 5.2, 5.3 und das Messerwellenpaar 6.1, 6.2, um direkt zum zweiten Schwertfalzwerk zu gelangen.If no German, but an English four-fold to be folded on the machine shown, a switch (not shown) is adjusted so that the sheet does not enter the device 7 and the arrangement of Bogenvorder- and trailing edge relative to the sheet conveying direction are not changed , Coming from the first blade folder, the sheet passes through the pair of rollers 5.1, 5.2, then 5.2, 5.3 and the pair of knife shafts 6.1, 6.2, to go directly to the second blade folder.

Die Ausgestaltung der Anschläge 10.1 und 10.2 lässt auch zu, dass die Anschlagkanten z. B. durch Drehbewegung nach unten weggeklappt werden können (Stellung wie 10.1 in Fig. 2). Dies ist erforderlich, wenn nach dem 1. Kreuzbruch keiner weiterer nachfolgt und die Falzbogen mit der Transporteinrichtung 11 direkt unter dem Schwert 2 aus der Maschinen ausgeschleust werden.The design of the stops 10.1 and 10.2 also allows that the stop edges z. B. can be folded down by rotational movement (position as 10.1 in Fig. 2). This is necessary if, after the 1st cross break, no further follows and the folded sheets are removed with the transport device 11 directly under the sword 2 from the machine.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
Falz schwertFold sword
22
Falz schwertFold sword
3.13.1
Falzwalzefolding roller
3.23.2
Falzwalzefolding roller
44
Leitblechbaffle
5.15.1
Transportwalzetransport roller
5.25.2
Transportwalzetransport roller
5.35.3
Transportwalzetransport roller
6.16.1
Messerwellecutterhead
6.26.2
Messerwellecutterhead
77
Vorrichtung zur Änderung der Anordnung der Bogenvorder- und-hinterkante relativ zur BogenförderrichtungDevice for changing the arrangement of the sheet front and rear edge relative to the sheet conveying direction
88th
Auswurfeinrichtungejection means
99
NiederhaltefingerRetaining fingers
10.110.1
hintere Ausrichteeinheitrear alignment unit
10.210.2
vorderer Ausrichteeinheitfront alignment unit
10.310.3
BogenhinterkantenführungSheet trailing edge guide
1111
Transporteinrichtungtransport means
1212
Sensorsensor
AA
BogenförderrichtungSheet conveying direction
aa
Schwertbewegungsword movement
bb
Verstellbewegung AusrichteeinheitAdjustment movement alignment unit
II
Position drittes SchwertfalzwerkPosition third sword folder

Claims (12)

Falzmaschine mit mindestens zwei in Durchlaufrichtung hintereinander rechtwinklig zueinander angeordneten Schwertfalzwerken,
dadurch gekennzeichnet,
dass zwischen dem ersten Schwertfalzwerk und dem zweiten Schwertfalzwerk eine Vorrichtung zur Änderung der Anordnung der Bogenvorderkante und der Bogenhinterkante relativ zur Bogenförderrichtung (7) angebracht ist.Folding machine with at least two in the direction of passage one behind the other perpendicular to each other arranged Schwertfalzwerken,
characterized,
in that a device for changing the arrangement of the sheet leading edge and the sheet trailing edge relative to the sheet conveying direction (7) is mounted between the first blade folder and the second blade folder. Falzmaschine nach Anspruch 1,
dadurch gekennzeichnet,
dass die Vorrichtung zur Änderung der Anordnung der Bogenvorder- und -hinterkante relativ zur Bogenförderrichtung (7) mindestens zwei Walzenpaare (5.1, 5.2, 5.3) und eine Tasche mit einer Auswurfvorrichtung (8) besitzt.Folding machine according to claim 1,
characterized,
that the device for changing the arrangement of Bogenvorder- and rear edges relative to the sheet conveying direction (7) at least two pairs of rollers (5.1, 5.2, 5.3) and a bag with an ejection device (8) has. Falzmaschine nach Anspruch 2,
dadurch gekennzeichnet,
dass die Auswurfvorrichtung (8) elektrisch betrieben wird.Folding machine according to claim 2,
characterized,
that the ejection device (8) is electrically operated. Falzmaschine nach Anspruch 2,
dadurch gekennzeichnet,
dass die Auswurfvorrichtung (8) pneumatisch betrieben wird.Folding machine according to claim 2,
characterized,
that the ejection device (8) is pneumatically operated. Falzmaschine nach Anspruch 2,
dadurch gekennzeichnet,
dass sich in Bogenförderrichtung zwischen Vorrichtung (7) und Transportwalzen (5.2, 5.3) gesteuerte Niederhaltefinger (9) befinden.Folding machine according to claim 2,
characterized,
that in the sheet conveying direction between the device (7) and transport rollers (5.2, 5.3) controlled hold-down fingers (9) are located. Falzmaschine nach einem der Ansprüche 1 bis 5,
dadurch gekennzeichnet,
dass eine Ausrichtevorrichtung (10.1, 10.2, 10.3) des zweiten Schwertfalzwerkes zum exakten Ausrichten des Bogens vorgesehen ist.Folding machine according to one of claims 1 to 5,
characterized,
that an alignment device (10.1, 10.2, 10.3) of the second to Schwertfalzwerkes exact alignment of the sheet is provided. Falzmaschine nach Anspruch 6,
dadurch gekennzeichnet,
dass sich die Ausrichtevorrichtung des zweiten Schwertfalzwerkes aus je einer entlang der Bogenförderrichtung verschiebbaren vorderen Ausrichteeinheit (10.2) und hinteren Ausrichteeinheit (10.1) zusammensetzt.Folding machine according to claim 6,
characterized,
in that the alignment device of the second knife-folding unit is composed of one each along the sheet conveying direction displaceable front alignment unit (10.2) and rear alignment unit (10.1). Falzmaschine nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet,
dass die Falzmaschine ein drittes Schwertfalzwerk (I) besitzt.Folding machine according to one of the preceding claims,
characterized,
that the folding machine has a third sword folder (I). Falzmaschine nach Anspruch 8,
dadurch gekennzeichnet,
dass das erste Schwertfalzwerk mittig, das zweite und dritte Schwertfalzwerk links in Bogendurchlaufrichtung angeordnet sind.Folding machine according to claim 8,
characterized,
that the first sword folder are centered, the second and third blade folder are arranged in the left direction in the sheet travel direction. Falzmaschine nach Anspruch 9,
dadurch gekennzeichnet,
dass den Schwertfalzwerken mindestens ein Taschenfalzwerk vorgelagert ist.Folding machine according to claim 9,
characterized,
that the sword folders are preceded by at least one pocket folder. Verfahren zum Falzen von Bogen aus flächigem Bedruckstoff zum so genannten Deutschen Vierbruch in einer Falzmaschine mit den folgenden Verfahrensschritten: - Falzen des Bogens in einem Taschenfalzwerk - Weitertransport des Bogens zu einem ersten in Durchlaufrichtung im Wesentlichen mittig liegenden Schwertfalzwerk - Falzen des ersten Kreuzbruches - Weitertransport in eine Vorrichtung zur Änderung der Anordnung der Bogenvorder- und -hinterkante relativ zur Bogenförderrichtung (7) - Weitertransport des Bogens zu einem zweiten in Durchlaufrichtung links liegenden Schwertfalzwerk - Ausrichten des Bogens zur Position des dritten Schwertfalzwerks - Falzen des zweiten Kreuzbruches - Weitertransport des Bogens zu einem dritten in Durchlaufrichtung links liegenden Schwertfalzwerk - Falzen des dritten Kreuzbruchs Method for folding sheets of flat printing stock into the so-called German quark in a folding machine with the following method steps: - Folding the bow in a pocket folder - Further transport of the sheet to a first in the direction of passage substantially centrally located Schwertfalzwerk - Folding the first cross-rupture - Further transport into a device for changing the arrangement of the sheet leading and trailing edge relative to the sheet conveying direction (7) - Further transport of the sheet to a second in the direction of flow left blade folder - Align the sheet to the position of the third knife folder - Folding the second cross-rupture - Further transport of the sheet to a third in the direction of passage on the left blade folder - Folding the third cross fracture Verfahren nach Anspruch 11,
dadurch gekennzeichnet,
dass es sich bei der Falzmaschine um eine Falzmaschine nach Anspruch 10 handelt.Method according to claim 11,
characterized,
in that the folding machine is a folding machine according to claim 10.
EP07120234A 2006-11-23 2007-11-08 Blade folding machine with upstream folding device and method for folding printed sheets Active EP1925579B1 (en)

Applications Claiming Priority (1)

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DE102006055301A DE102006055301A1 (en) 2006-11-23 2006-11-23 Sword folding machine with a pocket folder located upstream and method for folding sheets from flat printing material

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DE502007003208D1 (en) 2010-05-06
CN101186257A (en) 2008-05-28
PT1925579E (en) 2010-06-16
CN101186257B (en) 2012-11-28
JP2008127208A (en) 2008-06-05
EP1925579B1 (en) 2010-03-24
ATE461899T1 (en) 2010-04-15
DE102006055301A1 (en) 2008-05-29

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