EP2862716A2 - Method and device for treating a web to be printed - Google Patents

Method and device for treating a web to be printed Download PDF

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Publication number
EP2862716A2
EP2862716A2 EP20140188766 EP14188766A EP2862716A2 EP 2862716 A2 EP2862716 A2 EP 2862716A2 EP 20140188766 EP20140188766 EP 20140188766 EP 14188766 A EP14188766 A EP 14188766A EP 2862716 A2 EP2862716 A2 EP 2862716A2
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EP
European Patent Office
Prior art keywords
adhesive
printing material
web
material web
cutting
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
EP20140188766
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German (de)
French (fr)
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EP2862716A3 (en
EP2862716B1 (en
Inventor
Peter Knauer
Robert Mayr
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 Web Systems GmbH
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Manroland Web Systems GmbH
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Publication date
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Publication of EP2862716A2 publication Critical patent/EP2862716A2/en
Publication of EP2862716A3 publication Critical patent/EP2862716A3/en
Application granted granted Critical
Publication of EP2862716B1 publication Critical patent/EP2862716B1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F13/00—Common details of rotary presses or machines
    • B41F13/54—Auxiliary folding, cutting, collecting or depositing of sheets or webs
    • B41F13/56—Folding or cutting
    • B41F13/60—Folding or cutting crosswise
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H35/00—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers
    • B65H35/04—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers from or with transverse cutters or perforators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H37/00—Article or web delivery apparatus incorporating devices for performing specified auxiliary operations
    • B65H37/02—Article or web delivery apparatus incorporating devices for performing specified auxiliary operations for applying adhesive

Definitions

  • the invention relates to a method for processing a printing material web with a cutting device for separating the printing material web transversely to the web running direction and an adhesive device. Furthermore, the invention relates to an apparatus for carrying out the method for processing a printing material web with at least one cutting device for separating the printing material web and an adhesive device for applying adhesive to the printing material web.
  • Such cutting devices are commonly used in printing machines to cut a web transversely to the web direction, so as to produce the desired end or intermediate products from a continuous web.
  • These cut signatures can be collected and / or stacked depending on further processing.
  • the exact guidance of the individual signatures is heavier because the individual sheets move more easily transversely to the web running direction and twist in the web level.
  • it is therefore important that the individual sheets after the cutting process and in particular when collecting or stacking are fixed together.
  • a method and an apparatus for producing book blocks forming stacks is known in which adhesive is applied to the individual signatures before or with the stacking, so that the individual signatures of the sheet stack are connected to one another.
  • a disadvantage of this embodiment is that just during the transport of the isolated signatures or during the application of adhesive to the individual signatures an undesired displacement or rotation is possible.
  • the invention is therefore based on the object to provide a method of the type mentioned above, which allows a particularly simple and secure application of adhesive and reduces the risk of displacements or rotations of the individual sheets. Furthermore, a device, in particular a cutting device of the above type should be specified, which can implement such a method particularly suitable.
  • this object is achieved according to the invention by applying the adhesive in the web running direction before separating the printing material on this.
  • the invention is based on the consideration that a cause for the displacement or rotation of individual signatures is due to the transport of the isolated signatures or by the application of the adhesive to the signatures. It was found that the adhesive can be applied particularly securely to the substrate, if this is less susceptible to twisting. This is especially the case when the substrate is still present as a continuous web, so before it is cut into individual signatures. Therefore, the adhesive is applied in the web running direction before the actual cross section, ie before the last cutter on the substrate web.
  • the cutting device comprises two cutting devices, wherein the first cutting device is a perforation line generated while the second in the web running direction downstream cutting device separates the printing material along the perforation line.
  • the adhesive is preferably applied in the web running direction after the first cutting device and before the second cutting device.
  • contamination of the first cutting device by the adhesive and also damage to the adhesive film by the first cutting device can be prevented.
  • a cutting device can also be designed in the form that a first cutting device perforated the web transversely to the web running direction and the second cutting device for separating the web from a tear-off in the form of a tear-off or in the form of a belt acceleration section.
  • the adhesive device is arranged not only between the first and the second cutting device but in a particularly preferred embodiment in the transport direction of the printing material seen alignment of the perforation holes of the first cutting device.
  • the adhesive can be removed before final production.
  • the adhesive is applied in at least one edge region of the printing material web in an advantageous embodiment. This makes it possible for the Separate adhesive in a later step by a longitudinal section in the edge region of the final product.
  • the adhesive can also be applied at several points across the signature width; an adjustability of the adhesive head or the adhesive heads is advantageous.
  • the adhesive is preferably applied on one side, the job can be done on the top or bottom. Alternatively, a double-sided adhesive application is possible.
  • the cutting device 1 according to Fig. 1 comprises two cutting devices 2, 4, which are exemplified in the embodiment as cutting cylinder pairs. These cutting cylinder pairs are arranged in the web running direction x behind each other. An incoming printing material web 6 is guided in succession through the first cutting device 2 and the second cutting device 4 by means of a ribbon cable within the cutting device 1.
  • the first cutting device 2 comprises in the Fig. 1 while two cylindrical rollers, wherein on a cylindrical roller, the cutting cylinder, a cutting blade is arranged, while the other cylindrical roller is designed as a counter-pressure cylinder.
  • the cutting blade of the cutting cylinder is designed as a perforation, which means that the cutting surface does not extend over the entire width of the printing material, but the cutting blade is interrupted in sections.
  • the two cylindrical rollers of the first cutting cylinder pair 2 cooperate in such a way that the printing material web 6 guided between the two cylindrical rollers is perforated transversely to its web running direction x or cut in sections.
  • Both the perforation holes and the perforation webs have in the present embodiment, based on the web width, a typical length of a few centimeters, preferably, the perforation holes are about 2 centimeters long. For a later clean cut, the perforation holes are made slightly longer than the perforation webs. The perforation holes and perforation webs together form the perforation line 8.
  • the second pair of cutting cylinders 4 comprises two cylindrical rollers, wherein a cylindrical roller is designed as a cutting cylinder and a cylinder roller as a counter-cylinder. Also in the second cutting cylinder pair 4, the cutting blade of the cutting cylinder is designed as a perforation and thus interrupted. As a counterpart to the cutting blade of the first cutting cylinder pair 2, however, the cutting surface of the cutting blade of the second cutting cylinder pair 4 is arranged offset. This means that in the areas where the first pair of cutting cylinders has left a perforation web, now a cutting surface is provided which intersects the printing material 6.
  • the two cutting cylinder pairs 2, 4 are synchronized via a control, so that the second cutting cylinder pair 4 intersects exactly along the perforation line 8. Since even with the second cutting blade, the cutting surfaces have a length of a few centimeters, preferably here are the cutting surfaces about 2 inches long, and slightly larger than the interrupted areas of the cutting blade, the printing material 6 is clean and reliable separated over the entire width ,
  • the cutting device comprises an adhesive device 10, which can apply adhesive to the printing material web.
  • This adhesive device 10 is in the embodiment according to FIG. 1 arranged between the first and the second cutting cylinder pair 2, 4 and comprises at least one adhesive head 12, which applies for example at a point or in the form of a line the adhesive to the substrate web.
  • FIG. 2 the individual components for the process for processing a printing material web are again shown schematically.
  • a printing material web is guided by a first cutting cylinder pair and a second cutting cylinder pair. While the first pair of cutting cylinders 2 according to the above embodiment perforates the printing material web 6 or sections and creates a perforation line 8, the second cutting cylinder pair 4 cuts the printing material web 6 or the perforation webs of the perforation line 8 over the entire width of the printing material web 6 two cutting cylinder pairs 2, 4, an adhesive device 10 is arranged, which applies over an adhesive head 12 adhesive to the substrate web. In the embodiment of the Fig. 2 an example of a selective application of adhesive is shown.
  • the adhesive is thereby applied selectively by the adhesive device 10 in the regions of the perforation holes or in the alignment of the perforation holes. This results in that the adhesive is applied in areas that is not touched by the cutting blade of the second cutting roller pair 4, because there is an interruption of the cutting blade is provided.
  • contamination of the cutting blade can be avoided by adhesive, on the other hand, however, the adhesive trace is not removed by contact with the cutting blade, whereby the quality of the bond and thus the safety against contamination could be reduced.
  • the adhesive trace is preferably applied to the edge of the printing material web, in particular in the region of the first, outermost perforation hole. This makes it possible to remove the adhesive trace by a later longitudinal section in the edge region of the individual sheets or in the case of book binding to select the print area so that the adhesive trace is in the spine area. In both cases, the end product is not significantly affected by the application of the adhesive trace in the edge region.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)

Abstract

Ein Verfahren und eine Vorrichtung zum Bearbeiten einer Bedruckstoffbahn mit einer Schneidvorrichtung zum Querschneiden der Bedruckstoffbahn und einer Klebevorrichtung sollen einen besonders einfachen und sicheren Auftrag von Klebstoff ermöglichen und die Gefahr von Verschiebungen oder Verdrehungen der einzelnen Blätter vermindern. Dazu wird der Klebstoff in Bahnlaufrichtung vor dem Abtrennen der Bedruckstoffbahn auf diese aufgetragen.A method and a device for processing a printing material web with a cutting device for the transverse cutting of the printing material web and an adhesive device should enable a particularly simple and secure application of adhesive and reduce the risk of displacements or twisting of the individual sheets. For this purpose, the adhesive is applied in the web running direction before separating the printing material on this.

Description

Die Erfindung bezieht sich auf Verfahren zum Bearbeiten einer Bedruckstoffbahn mit einer Schneidvorrichtung zum Abtrennen der Bedruckstoffbahn quer zur Bahnlaufrichtung und einer Klebevorrichtung. Des Weiteren bezieht sich die Erfindung auf eine Vorrichtung zur Durchführung des Verfahrens zum Bearbeiten einer Bedruckstoffbahn mit mindestens einer Schneidvorrichtung zum Abtrennen der Bedruckstoffbahn und einer Klebevorrichtung zum Auftragen von Klebstoff auf die Bedruckstoffbahn.The invention relates to a method for processing a printing material web with a cutting device for separating the printing material web transversely to the web running direction and an adhesive device. Furthermore, the invention relates to an apparatus for carrying out the method for processing a printing material web with at least one cutting device for separating the printing material web and an adhesive device for applying adhesive to the printing material web.

Ein Beispiel für eine derartige Schneidvorrichtung ist in der EP2308681 A2 beschrieben. Anstelle von den dort offenbarten zwei Schneideinrichtungen in Form von zwei Schneidmesserpaaren kann aber auch eine andersartige Schneidvorrichtung bzw. Schneideinrichtung zum Einsatz kommen, beispielsweise eine Schneideinrichtung mit rotierendem Schneidmesserzylinder und feststehendem Gegenmesser, wie diese in der DE10213978 A1 beschrieben ist. Hierbei können die rotierenden Schneidmesser oder die feststehenden Schneidmesser durchgängig oder für einen unterbrochenen Schnitt ebenfalls unterbrochen sein.An example of such a cutting device is in EP2308681 A2 described. Instead of the disclosed there two cutting devices in the form of two pairs of cutting blades but also a different type of cutting device or cutting device can be used, for example, a cutting device with rotating cutting blade and fixed counter blade, as in the DE10213978 A1 is described. Here, the rotating cutting blade or the fixed cutting blade can be interrupted throughout or for a broken cut also.

Derartige Schneidvorrichtungen werden üblicherweise in Druckmaschinen eingesetzt, um eine Materialbahn quer zur Bahnrichtung zu schneiden, um so aus einer Endlosbahn die gewünschten End- oder Zwischenprodukte herzustellen. Diese geschnittenen Signaturen können je nach weiterer Bearbeitung gesammelt und/oder gestapelt werden. Im Gegensatz zur Endlosbahn ist allerdings die exakte Führung der einzelnen Signaturen schwerer, da sich die einzelnen Blätter leichter quer zur Bahnlaufrichtung verschieben und auch in der Bahnlaufebene verdrehen. Zur Vermeidung von Ausschussware ist es daher wichtig, dass die Einzelblätter nach dem Schneidvorgang und insbesondere beim Sammeln oder Stapeln miteinander fixiert werden. Aus der EP 20159 070 A1 ist dazu ein Verfahren und eine Vorrichtung zum Herstellen von Buchblöcke bildenden Stapeln bekannt, in der auf die einzelnen Signaturen vor oder mit dem Stapeln Klebstoff aufgetragen wird, sodass die einzelnen Signaturen des Blätterstapels miteinander verbunden werden. Nachteilig bei dieser Ausführungsform ist allerdings, dass gerade während des Transportes der vereinzelten Signaturen oder während des Klebstoffauftrags auf die einzelnen Signaturen eine unerwünschte Verschiebung oder Verdrehung möglich ist.Such cutting devices are commonly used in printing machines to cut a web transversely to the web direction, so as to produce the desired end or intermediate products from a continuous web. These cut signatures can be collected and / or stacked depending on further processing. In contrast to the continuous web, however, the exact guidance of the individual signatures is heavier because the individual sheets move more easily transversely to the web running direction and twist in the web level. To avoid waste, it is therefore important that the individual sheets after the cutting process and in particular when collecting or stacking are fixed together. From the EP 20159 070 A1 For this purpose, a method and an apparatus for producing book blocks forming stacks is known in which adhesive is applied to the individual signatures before or with the stacking, so that the individual signatures of the sheet stack are connected to one another. A disadvantage of this embodiment, however, is that just during the transport of the isolated signatures or during the application of adhesive to the individual signatures an undesired displacement or rotation is possible.

Der Erfindung liegt daher die Aufgabe zu Grunde, ein Verfahren der oben genannten Art anzugeben, das einen besonders einfachen und sicheren Auftrag von Klebstoff ermöglicht und die Gefahr von Verschiebungen oder Verdrehungen der einzelnen Blätter vermindert. Weiterhin soll eine Vorrichtung, insbesondere eine Schneidvorrichtung der oben genannten Art angeben werden, die ein derartiges Verfahren besonders geeignet umsetzen kann.The invention is therefore based on the object to provide a method of the type mentioned above, which allows a particularly simple and secure application of adhesive and reduces the risk of displacements or rotations of the individual sheets. Furthermore, a device, in particular a cutting device of the above type should be specified, which can implement such a method particularly suitable.

Bezüglich des Verfahrens wird diese Aufgabe erfindungsgemäß gelöst, indem der Klebstoff in Bahnlaufrichtung vor dem Abtrennen der Bedruckstoffbahn auf diese aufgetragen wird.With regard to the method, this object is achieved according to the invention by applying the adhesive in the web running direction before separating the printing material on this.

Die Erfindung geht von der Überlegung aus, dass eine Ursache für die Verschiebung oder Verdrehung einzelner Signaturen durch den Transport der vereinzelten Signaturen oder durch die Auftragung des Klebstoffs auf die Signaturen begründet ist. Dabei wurde festgestellt, dass der Klebstoff besonders sicher auf den Bedruckstoff aufgetragen werden kann, wenn dieser weniger anfällig für Verdrehungen ist. Dies ist vor allem dann der Fall, wenn der Bedruckstoff noch als eine Endlosbahn vorliegt, also bevor er in einzelne Signaturen geschnitten wird. Daher wird der Klebstoff in Bahnlaufrichtung vor dem eigentlichen Querschnitt, also vor der letzten Schneideinrichtung, auf die Bedruckstoffbahn aufgetragen.The invention is based on the consideration that a cause for the displacement or rotation of individual signatures is due to the transport of the isolated signatures or by the application of the adhesive to the signatures. It was found that the adhesive can be applied particularly securely to the substrate, if this is less susceptible to twisting. This is especially the case when the substrate is still present as a continuous web, so before it is cut into individual signatures. Therefore, the adhesive is applied in the web running direction before the actual cross section, ie before the last cutter on the substrate web.

In besonders bevorzugter Ausführung umfasst die Schneidvorrichtung zwei Schneideinrichtungen, wobei die erste Schneideinrichtung eine Perforationslinie erzeugt, während die zweite in Bahnlaufrichtung nachgeschaltete Schneideinrichtung die Bedruckstoffbahn entlang der Perforationslinie trennt. Für einen sauberen Klebstoffauftrag wird bevorzugt der Klebstoff in Bahnlaufrichtung nach der ersten Schneideinrichtung und vor der zweiten Schneideinrichtung aufgetragen. Dadurch kann eine Verschmutzung der ersten Schneideinrichtung durch den Klebstoff und auch eine Beschädigung des Klebefilms durch die erste Schneideinrichtung verhindert werden.
Es ist bei Vorhandensein mehrerer Schneideinrichtungen zum Abtrennen der Bedruckstoffbahn auch möglich, vor der ersten und vor einer der nachfolgenden Schneideinrichtungen jeweils Klebstoff aufzutragen.In a particularly preferred embodiment, the cutting device comprises two cutting devices, wherein the first cutting device is a perforation line generated while the second in the web running direction downstream cutting device separates the printing material along the perforation line. For a clean adhesive application, the adhesive is preferably applied in the web running direction after the first cutting device and before the second cutting device. As a result, contamination of the first cutting device by the adhesive and also damage to the adhesive film by the first cutting device can be prevented.
It is also possible, in the presence of a plurality of cutting devices for separating the printing material web, to apply adhesive in each case before the first and before one of the following cutting devices.

Eine Schneidvorrichtung kann auch in der Form ausgestaltet werden, dass eine erste Schneideinrichtung die Bahn quer zur Bahnlaufrichtung perforiert und die zweite Schneideinrichtung zum Abtrennen der Bahn aus einer Abreißeinrichtung in Form einer Abreißnocke oder in Form einer Bänderbeschleunigungsstrecke ausgebildet ist.A cutting device can also be designed in the form that a first cutting device perforated the web transversely to the web running direction and the second cutting device for separating the web from a tear-off in the form of a tear-off or in the form of a belt acceleration section.

Zur Vermeidung eines Klebstoffübertrags auf die Schneidmesser der Schneideinrichtung ist die Klebevorrichtung nicht nur zwischen der ersten und der zweiten Schneideinrichtung sondern in besonders bevorzugter Ausführungsform in der in Transportrichtung des Bedruckstoffes gesehenen Flucht der Perforationslöcher der ersten Schneideinrichtung angeordnet. Durch eine geeignete Wahl des Schneidmessers der zweiten Schneideinrichtung, nämlich eines Schneidmesser mit Aussparungen im Bereich der Perforationslöcher und insbesondere im Bereich des Perforationsloches, in dessen Flucht der Klebstoff aufgetragen wurde, wird ein Klebstoffübertrag auf das Schneidmesser vermieden. Dieses kann auch durch eine intermittierende, d. h. in Transportrichtung des Bedruckstoffes gesehen unterbrochene Aufbringung des Klebstoffes unterstützt oder gar realisiert werden.To avoid an adhesive transfer to the cutting blades of the cutting device, the adhesive device is arranged not only between the first and the second cutting device but in a particularly preferred embodiment in the transport direction of the printing material seen alignment of the perforation holes of the first cutting device. By a suitable choice of the cutting blade of the second cutting device, namely a cutting blade with recesses in the perforation holes and in particular in the region of the perforation, in the flight of the adhesive was applied, an adhesive transfer to the cutting blade is avoided. This may also be due to an intermittent, d. H. Seen in the transport direction of the substrate interrupted application of the adhesive supports or even realized.

Je nach Endprodukt kann es wünschenswert sein, wenn der Klebstoff vor der Endfertigung wieder entfernt werden kann. Um dies auf besonders einfache Weise zu erreichen, wird in vorteilhafter Ausbildung der Klebstoff in mindestens einem Randbereich der Bedruckstoffbahn aufgetragen. Dadurch ist es möglich, den Klebstoff in einem späteren Verfahrensschritt durch einen Längsschnitt im Randbereich vom Endprodukt abzutrennen.Depending on the final product, it may be desirable if the adhesive can be removed before final production. To achieve this in a particularly simple manner, the adhesive is applied in at least one edge region of the printing material web in an advantageous embodiment. This makes it possible for the Separate adhesive in a later step by a longitudinal section in the edge region of the final product.

Der Klebstoff kann zur Sicherstellung einer besseren Haftung der einzelnen Signaturen auch an mehreren Stellen über die Signaturbreite aufgetragen werden; eine Verstellbarkeit des Klebekopfes bzw. der Klebeköpfe ist von Vorteil.To ensure better adhesion of the individual signatures, the adhesive can also be applied at several points across the signature width; an adjustability of the adhesive head or the adhesive heads is advantageous.

Um möglichst vielfältige Einsatzmöglichkeiten zu bieten bzw. vielfältige Endprodukte bereitstellen zu können, sind mehrere Klebefilmvariationen möglich. Dabei ist ein punktueller und somit klebstoffsparender wie auch ein durchgängiger Klebstoffauftrag in Form einer Linie für eine eher feste Bindung besonders bevorzugt.In order to provide as many uses as possible or to provide a variety of end products, several adhesive film variations are possible. Here, a punctual and thus adhesive-saving as well as a continuous application of adhesive in the form of a line for a rather firm bond is particularly preferred.

Der Klebstoff wird vorzugsweise einseitig aufgetragen, der Auftrag kann auf der Ober- oder der Unterseite erfolgen. Alternativ ist auch ein beidseitiger Klebstoffauftrag möglich.The adhesive is preferably applied on one side, the job can be done on the top or bottom. Alternatively, a double-sided adhesive application is possible.

Die mit der Erfindung erzielten Vorteile bestehen insbesondere darin, dass durch den Auftrag des Klebstoffes vor dem endgültigen Abtrennen und insbesondere zwischen der ersten und zweiten Schneideinrichtung eine Verdrehung oder Verschiebung bestmöglich vermieden wird. Dabei wird ausgenutzt, dass die Bedruckstoffbahn vor dem Querschnitt besonders verdrehsicher ist und trotzdem durch die spezielle Wahl der Schneideirichtungen vermieden werden kann, dass ein Klebstoffübertrag von der Bedruckstoffbahn auf die Schneidmesser der Schneideinrichtungen erfolgt.The advantages achieved by the invention are, in particular, that the application of the adhesive before the final separation and in particular between the first and second cutting means a rotation or displacement is avoided as possible. It is exploited that the printing material before the cross section is particularly resistant to rotation and can still be avoided by the special choice of Schneideirichtungen that an adhesive transfer from the printing material on the cutting blades of the cutting devices takes place.

Ein Ausführungsbeispiel einer Erfindung wird anhand von einer Zeichnung näher erläutert. Darin zeigen:

  • Fig. 1 die Schneidvorrichtung mit der Klebevorrichtung, und
  • Fig. 2 eine schematische Darstellung des Verfahrens zum Bearbeiten der Bedruckstoffbahn.
An embodiment of an invention will be explained in more detail with reference to a drawing. Show:
  • Fig. 1 the cutting device with the adhesive device, and
  • Fig. 2 a schematic representation of the method for processing the printing material web.

Gleiche Teile sind in allen Figuren mit denselben Bezugszeichen versehen.Identical parts are provided with the same reference numerals in all figures.

Die Schneidvorrichtung 1 gemäß Fig. 1 umfasst zwei Schneideinrichtungen 2, 4, die im Ausführungsbeispiel beispielhaft als Schneidzylinderpaare ausgeführt sind. Diese Schneidzylinderpaare sind in Bahnlaufrichtung x hinter einander angeordnet sind. Eine einlaufende Bedruckstoffbahn 6, wird mittels einer Bandleitung innerhalb der Schneidvorrichtung 1 nacheinander durch die erste Schneideinrichtung 2 und das zweite Schneideinrichtung 4 geführt.The cutting device 1 according to Fig. 1 comprises two cutting devices 2, 4, which are exemplified in the embodiment as cutting cylinder pairs. These cutting cylinder pairs are arranged in the web running direction x behind each other. An incoming printing material web 6 is guided in succession through the first cutting device 2 and the second cutting device 4 by means of a ribbon cable within the cutting device 1.

Die erste Schneideinrichtung 2 umfasst in den Fig. 1 dabei zwei Zylinderwalzen, wobei auf einer Zylinderwalze, dem Schneidzylinder ein Schneidmesser angeordnet ist, während die andere Zylinderwalze als Gegendruckzylinder ausgebildet ist. Das Schneidmesser des Schneidzylinders ist dabei als Perforationsmesser ausgeführt, das bedeutet, dass die Schneidfläche nicht über die gesamte Breite der Bedruckstoffbahn verläuft, sondern das Schneidmesser abschnittsweise unterbrochen ist. Die beiden Zylinderwalzen des ersten Schneidzylinderpaares 2 wirken derart zusammen, dass die zwischen den beiden Zylinderwalzen geführte Bedruckstoffbahn 6 quer zu ihrer Bahnlaufrichtung x perforiert bzw. abschnittsweise geschnitten wird. Sowohl die Perforationslöcher als auch die Perforationsstege haben im vorliegenden Ausführungsbeispiel bezogen auf die Bahnbreite eine typische Länge von ein paar Zentimetern, vorzugsweise sind die Perforationslöcher etwa 2 Zentimeter lang. Für einen späteren sauberen Schnitt sind die Perforationslöcher dabei etwas länger ausgeführt als die Perforationsstege. Die Perforationslöcher und Perforationsstege bilden zusammen die Perforationslinie 8.The first cutting device 2 comprises in the Fig. 1 while two cylindrical rollers, wherein on a cylindrical roller, the cutting cylinder, a cutting blade is arranged, while the other cylindrical roller is designed as a counter-pressure cylinder. The cutting blade of the cutting cylinder is designed as a perforation, which means that the cutting surface does not extend over the entire width of the printing material, but the cutting blade is interrupted in sections. The two cylindrical rollers of the first cutting cylinder pair 2 cooperate in such a way that the printing material web 6 guided between the two cylindrical rollers is perforated transversely to its web running direction x or cut in sections. Both the perforation holes and the perforation webs have in the present embodiment, based on the web width, a typical length of a few centimeters, preferably, the perforation holes are about 2 centimeters long. For a later clean cut, the perforation holes are made slightly longer than the perforation webs. The perforation holes and perforation webs together form the perforation line 8.

Die so perforierte bzw. abschnittsweise geschnittene Bedruckstoffbahn 6 wird anschließend dem zweiten Schneidzylinderpaar 4 zugeführt. Auch das zweite Schneidzylinderpaar 4 umfasst zwei Zylinderwalzen, wobei eine Zylinderwalze als Schneidzylinder und eine Zylinderwalze als Gegenzylinder ausgebildet ist. Auch beim zweiten Schneidzylinderpaar 4 ist das Schneidmesser des Schneidzylinders als Perforationsmesser und somit unterbrochen ausgeführt. Als Gegenstück zum Schneidmesser des ersten Schneidzylinderpaares 2, ist die Schneidfläche des Schneidmessers des zweiten Schneidzylinderpaares 4 allerdings versetzt angeordnet. Das bedeutet, dass in den Bereichen, in denen das erste Schneidzylinderpaar einen Perforationssteg hinterlassen hat, nun eine Schneidfläche vorgesehen ist, die die Bedruckstoffbahn 6 schneidet. Die beiden Schneidzylinderpaare 2, 4 werden über eine Steuerung synchronisiert, so dass das zweite Schneidzylinderpaar 4 exakt entlang der Perforationslinie 8 schneidet. Da auch beim zweiten Schneidmesser die Schneidflächen eine Länge von ein paar Zentimetern aufweisen, vorzugsweise sind auch hier die Schneidflächen etwa 2 Zentimeter lang, und ein wenig größer als des unterbrochenen Bereiche des Schneidmessers sind, wird die Bedruckstoffbahn 6 sauber und zuverlässig über die komplette Breite getrennt.The printing material web 6 which is thus perforated or cut in sections is then fed to the second cutting cylinder pair 4. Also, the second pair of cutting cylinders 4 comprises two cylindrical rollers, wherein a cylindrical roller is designed as a cutting cylinder and a cylinder roller as a counter-cylinder. Also in the second cutting cylinder pair 4, the cutting blade of the cutting cylinder is designed as a perforation and thus interrupted. As a counterpart to the cutting blade of the first cutting cylinder pair 2, however, the cutting surface of the cutting blade of the second cutting cylinder pair 4 is arranged offset. This means that in the areas where the first pair of cutting cylinders has left a perforation web, now a cutting surface is provided which intersects the printing material 6. The two cutting cylinder pairs 2, 4 are synchronized via a control, so that the second cutting cylinder pair 4 intersects exactly along the perforation line 8. Since even with the second cutting blade, the cutting surfaces have a length of a few centimeters, preferably here are the cutting surfaces about 2 inches long, and slightly larger than the interrupted areas of the cutting blade, the printing material 6 is clean and reliable separated over the entire width ,

Für die weitere Bearbeitung der einzelnen Blätter, beispielsweise beim Stapeln der Blätter für eine spätere Buchbindung ist es vorteilhaft, die Blätter untereinander mittels Klebstoffauftrages zu fixieren, so dass diese in weiteren Bearbeitungsschritten nicht gegeneinander seitlich verrutschen oder verdrehen. Für die Fixierung der einzelnen Blätter umfasst die Schneidvorrichtung eine Klebevorrichtung 10, die Klebstoff auf die Bedruckstoffbahn auftragen kann. Diese Klebevorrichtung 10 ist in der Ausführungsform nach Figur 1 zwischen dem ersten und dem zweiten Schneidzylinderpaar 2, 4 angeordnet und umfasst mindestens einen Klebekopf 12, der beispielsweise punktuell oder in Form einer Linie den Klebstoff auf die Bedruckstoffbahn aufbringt.For the further processing of the individual sheets, for example, when stacking the sheets for a later book binding, it is advantageous to fix the sheets together by means of adhesive application, so that they do not slip laterally in another processing steps or rotate. For fixing the individual sheets, the cutting device comprises an adhesive device 10, which can apply adhesive to the printing material web. This adhesive device 10 is in the embodiment according to FIG. 1 arranged between the first and the second cutting cylinder pair 2, 4 and comprises at least one adhesive head 12, which applies for example at a point or in the form of a line the adhesive to the substrate web.

In der Fig. 2 sind die einzelnen Komponenten für das Verfahren zum Bearbeiten einer Bedruckstoffbahn noch einmal schematisch dargestellt. Eine Bedruckstoffbahn wird durch ein erstes Schneidzylinderpaar und ein zweites Schneidzylinderpaar geführt. Während das erste Schneidzylinderpaar 2 entsprechend der obigen Ausführung die Bedruckstoffbahn 6 perforiert bzw. abschnittsweise schneidet und eine Perforationslinie 8 erzeugt, schneidet das zweite Schneidzylinderpaar 4 die Bedruckstoffbahn 6, bzw. die Perforationsstege der Perforationslinie 8, über die gesamte Breite der Bedruckstoffbahn 6. Zwischen den beiden Schneidzylinderpaaren 2, 4 ist eine Klebevorrichtung 10 angeordnet, die über einen Klebekopf 12 Klebstoff auf die Bedruckstoffbahn aufträgt. In dem Ausführungsbeispiel nach der Fig. 2 ist beispielhaft ein punktueller Auftrag von Klebstoff dargestellt.In the Fig. 2 the individual components for the process for processing a printing material web are again shown schematically. A printing material web is guided by a first cutting cylinder pair and a second cutting cylinder pair. While the first pair of cutting cylinders 2 according to the above embodiment perforates the printing material web 6 or sections and creates a perforation line 8, the second cutting cylinder pair 4 cuts the printing material web 6 or the perforation webs of the perforation line 8 over the entire width of the printing material web 6 two cutting cylinder pairs 2, 4, an adhesive device 10 is arranged, which applies over an adhesive head 12 adhesive to the substrate web. In the embodiment of the Fig. 2 an example of a selective application of adhesive is shown.

Der Klebstoff wird dabei gezielt von der Klebstoffvorrichtung 10 in den Bereichen der Perforationslöcher bzw. in der Flucht der Perforationslöcher aufgetragen. Dies führt dazu, dass der Klebstoff in Bereichen aufgetragen wird, die durch das Schneidmesser des zweiten Schneidwalzenpaares 4 nicht berührt wird, weil dort eine Unterbrechung des Schneidmessers vorgesehen ist. Somit kann einerseits eine Verschmutzung des Schneidmessers durch Klebstoff vermieden werden, andererseits wird aber auch die Klebstoffspur durch eine Berührung mit dem Schneidmesser nicht abgetragen, wodurch die Qualität der Klebung und somit auch die Sicherheit gegenüber Verschmutzung vermindert werden könnte.The adhesive is thereby applied selectively by the adhesive device 10 in the regions of the perforation holes or in the alignment of the perforation holes. This results in that the adhesive is applied in areas that is not touched by the cutting blade of the second cutting roller pair 4, because there is an interruption of the cutting blade is provided. Thus, on the one hand contamination of the cutting blade can be avoided by adhesive, on the other hand, however, the adhesive trace is not removed by contact with the cutting blade, whereby the quality of the bond and thus the safety against contamination could be reduced.

Die Klebespur wird im vorliegenden Ausführungsbeispiel bevorzugt am Rand der Bedruckstoffbahn, insbesondere im Bereich des ersten, äußersten Perforationsloches aufgetragen. Dies ermöglicht es, die Klebespur durch einen späteren Längsschnitt im Randbereich der einzelnen Blätter zu entfernen oder aber im Falle der Buchbindung den Druckbereich so zu wählen, dass die Klebespur im Buchrückenbereich liegt. In beiden Fällen wird durch das Auftragen der Klebespur im Randbereich das Endprodukt nicht Wesentlich beeinträchtigt.In the present exemplary embodiment, the adhesive trace is preferably applied to the edge of the printing material web, in particular in the region of the first, outermost perforation hole. This makes it possible to remove the adhesive trace by a later longitudinal section in the edge region of the individual sheets or in the case of book binding to select the print area so that the adhesive trace is in the spine area. In both cases, the end product is not significantly affected by the application of the adhesive trace in the edge region.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
Schneidvorrichtungcutter
22
erste Schneideinrichtungfirst cutting device
44
zweite Schneideinrichtungsecond cutting device
66
Bedruckstoffbahnprinting material
88th
Perforationslinieperforation
1010
Klebevorrichtunggluer
1212
Klebekopfgluing head
xx
BahnlaufrichtungWeb direction

Claims (11)

Verfahren zum Bearbeiten einer Bedruckstoffbahn (6) mit einer Schneidvorrichtung (1) zum Abtrennen der Bedruckstoffbahn (6) quer zur Bahnlaufrichtung (x) und einer Klebevorrichtung (10), dadurch gekennzeichnet, dass der Klebstoff in Bahnlaufrichtung (x) vor dem Abtrennen der Bedruckstoffbahn (6) auf diese aufgetragen wird.Method for processing a printing material web (6) with a cutting device (1) for separating the printing material web (6) transversely to the web running direction (x) and an adhesive device (10), characterized in that the adhesive in the web running direction (x) before separating the printing material web (6) is applied to these. Verfahren zum Bearbeiten einer Bedruckstoffbahn (6) nach Anspruch 1, dadurch gekennzeichnet, dass die Schneidvorrichtung (1) eine erste und eine zweite Schneideinrichtung (2, 4) umfasst und eine Perforationslinie (8) quer zur Bahnlaufrichtung (x) durch die erste Schneideinrichtung (2) in die Bedruckstoffbahn (6) eingebracht wird und die Bedruckstoffbahn (6) entlang der Perforationslinie (8) durch die zweite Schneideinrichtung (4) geschnitten wird, wobei der Klebstoff in Bahnlaufrichtung (x) vor der zweiten Schneideinrichtung (4) auf die Bedruckstoffbahn (6) aufgetragen wird.Method for processing a printing material web (6) according to claim 1, characterized in that the cutting device (1) comprises a first and a second cutting device (2, 4) and a perforation line (8) transversely to the web running direction (x) by the first cutting device ( 2) is introduced into the printing material web (6) and the printing material web (6) is cut along the perforation line (8) by the second cutting device (4), wherein the adhesive in the web running direction (x) in front of the second cutting device (4) on the substrate web (6) is applied. Verfahren zum Bearbeiten einer Bedruckstoffbahn (6) nach Anspruch 2, dadurch gekennzeichnet, dass der Klebstoff in Bahnlaufrichtung (x) zwischen der ersten (2) und der zweiten Schneideinrichtung (4) auf die Bedruckstoffbahn (6) aufgetragen wird.Method for processing a printing material web (6) according to claim 2, characterized in that the adhesive in the web running direction (x) between the first (2) and the second cutting device (4) is applied to the printing material web (6). Verfahren nach einem der Ansprüche 1 bis 2, dadurch gekennzeichnet, dass der Klebstoff vor der ersten und vor der zweiten Schneideinrichtung aufgetragen wird.Method according to one of claims 1 to 2, characterized in that the adhesive is applied before the first and before the second cutting device. Verfahren zum Bearbeiten einer Bedruckstoffbahn (6) nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass der Klebstoff im Randbereich der Bedruckstoffbahn (6) aufgetragen wird.Method for processing a printing material web (6) according to one of claims 1 to 4, characterized in that the adhesive is applied in the edge region of the printing material web (6). Verfahren zum Bearbeiten einer Bedruckstoffbahn (6) nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass der Klebstoff punktuell oder in einer Form einer Linie aufgetragen wird.Method for processing a printing material web (6) according to one of claims 1 to 5, characterized in that the adhesive is applied selectively or in the form of a line. Verfahren zum Bearbeiten einer Bedruckstoffbahn (6) nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass der Klebstoff von unten und/oder von oben auf die Bedruckstoffbahn (6) aufgetragen wird.Method for processing a printing material web (6) according to one of claims 1 to 6, characterized in that the adhesive is applied to the printing substrate web (6) from below and / or from above. Verfahren zum Bearbeiten einer Bedruckstoffbahn (6) nach einem der Ansprüche 3 bis 7, dadurch gekennzeichnet, dass der Klebstoff in der Flucht der Perforationslöcher auf die Bedruckstoffbahn (6) aufgetragen wird.Method for processing a printing material web (6) according to one of claims 3 to 7, characterized in that the adhesive is applied to the printing material web (6) in alignment with the perforation holes. Verfahren zum Bearbeiten einer Bedruckstoffbahn (6) nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass der Klebstoff an mindestens einer Stelle über die Breite der Bedruckstoffbahn (6) aufgetragen wird.Method for processing a printing substrate web (6) according to one of claims 1 to 7, characterized in that the adhesive is applied at at least one location across the width of the printing material web (6). Verfahren zum Bearbeiten einer Bedruckstoffbahn (6) nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, dass der mindestens eine Klebekopf (12) quer zur Transportrichtung des Bedruckstoffes (6) in seiner Position verändert werden kann.Method for processing a printing material web (6) according to one of claims 1 to 9, characterized in that the at least one adhesive head (12) can be changed transversely to the transport direction of the printing material (6) in its position. Vorrichtung zur Durchführung des Verfahrens zum Bearbeiten einer Bedruckstoffbahn (6) nach einem der Ansprüche 1 bis 10 mit mindestens einer Schneidvorrichtung (1) zum Abtrennen der Bedruckstoffbahn (6) quer zur Bahnlaufrichtung (x) und einer Klebevorrichtung (10) zum Auftragen von Klebstoff auf die Bedruckstoffbahn.Apparatus for carrying out the method for processing a printing material web (6) according to one of claims 1 to 10 with at least one cutting device (1) for separating the printing material web (6) transversely to the web running direction (x) and an adhesive device (10) for applying adhesive the printing material web.
EP14188766.1A 2013-10-17 2014-10-14 Method and device for treating a web to be printed Active EP2862716B1 (en)

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DE201310017224 DE102013017224A1 (en) 2013-10-17 2013-10-17 Method and device for processing a printing material web

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DE102013017224A1 (en) 2015-04-23
EP2862716B1 (en) 2016-04-27
CN104553264A (en) 2015-04-29
CN104553264B (en) 2017-10-24

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