EP1953106B1 - Perforation unit of the folding apparatus of a printing press and method for operating the perforation unit of the folding apparatus of a printing press - Google Patents

Perforation unit of the folding apparatus of a printing press and method for operating the perforation unit of the folding apparatus of a printing press Download PDF

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Publication number
EP1953106B1
EP1953106B1 EP08001813A EP08001813A EP1953106B1 EP 1953106 B1 EP1953106 B1 EP 1953106B1 EP 08001813 A EP08001813 A EP 08001813A EP 08001813 A EP08001813 A EP 08001813A EP 1953106 B1 EP1953106 B1 EP 1953106B1
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EP
European Patent Office
Prior art keywords
perforation
cylinder
substrate
perforation knife
knife
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.)
Not-in-force
Application number
EP08001813A
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German (de)
French (fr)
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EP1953106A2 (en
EP1953106A3 (en
Inventor
Robert Kersch
Ralf Losert
Wolfgang Dr. Zeller
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Manroland AG
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Manroland AG
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Publication of EP1953106A2 publication Critical patent/EP1953106A2/en
Publication of EP1953106A3 publication Critical patent/EP1953106A3/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
    • 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
    • B65H35/08—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 from or with revolving, e.g. cylinder, 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
    • B65H45/00—Folding thin material
    • B65H45/12—Folding articles or webs with application of pressure to define or form crease lines
    • B65H45/30—Folding in combination with creasing, smoothing or application of adhesive
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2513/00—Dynamic entities; Timing aspects
    • B65H2513/10—Speed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2513/00—Dynamic entities; Timing aspects
    • B65H2513/20—Acceleration or deceleration
    • B65H2513/23—Acceleration or deceleration angular

Definitions

  • the invention relates to a Querperforationsappel a folding apparatus of a printing press. Furthermore, the invention relates to a method for operating a Querperforationsappel a folding apparatus.
  • Folding machines of printing presses serve for the formation of folds on printed substrates, wherein in the case of folding machines known from the prior art, a web-shaped printing stock is usually first passed through a first longitudinal folding unit having at least one former, so as to form a longitudinal fold on the web-shaped and preferably not yet severed printing substrate , Starting from the first longitudinal folding unit, the web-shaped printing material is guided in the direction of a cross-cutting unit, which comprises at least one cutting blade cylinder. In the area of the cross-cutting unit copies are separated from the web-shaped substrate. The separated copies are guided a Querfalzmaschine comprising at least one folding blade cylinder and a jaw cylinder.
  • the separated in the cross cutting unit from the web-shaped substrate copies are moved by the folding blade cylinder in the direction of the jaw cylinder and transferred to form a first transverse fold from the folding blade cylinder to the jaw cylinder.
  • second Querfalze can be formed between the jaw cylinder and a gripper cylinder, which cooperates with the jaw cylinder.
  • the copies thus provided with a longitudinal fold and with at least one transverse fold reach, starting from the transverse folding unit, into the region of a second longitudinal folding unit, which usually comprises a plurality of folding tables.
  • second longitudinal folds are formed on the already pre-folded copies, which run parallel to the longitudinal fold formed in the first longitudinal folding unit.
  • a so-called magazine structure may also be present, wherein in the magazine structure no longitudinal folding but longitudinal separation of the printing material takes place.
  • a transverse perforation unit and preferably also a longitudinal perforation unit are arranged between the first longitudinal folding unit or the magazine assembly and the perforated in the region of the first L jossfalzü or in the region of the magazine structure in the longitudinal direction severed substrate.
  • the respective perforations aid the formation of transverse creases in the cross-folding unit downstream of the first longitudinal folding unit or the magazine assembly and the formation of longitudinal creases in the second longitudinal folding unit downstream of the transverse folding unit.
  • the present invention relates to a Querperforationsappel a folding apparatus and a method for operating such Querperforationshim, wherein known from practice Querperforationsiseren having a perforating at least Perforiermesserzylinder and cooperating with the Perforiermesserzylinder counter cylinder.
  • a web-shaped printing material is moved through a gap formed between the perforating cylinder and the counter-cylinder at a defined speed.
  • the international application WO 98/12027 A1 discloses a cross perforator for a web wherein the web is passed between a perforator cylinder and a constant peripheral speed rotating impression cylinder and the web partially wraps around the impression cylinder.
  • a Perforiermesser located on Perforiermesserzylinder is rotated by a motor and brought into engagement with the web and the impression cylinder and then remains in a rest position.
  • the present invention seeks to provide a novel Querperforationsappel a folding apparatus of a printing press and a method for operating a Querperforationsappel a folding apparatus.
  • a Querperforationsaku according to claim 1.
  • the Perforiermesserzylinder and the counter-cylinder are driven by a drive that during each passage of the or each Perforationsmessers by the printing material, a peripheral speed of the Perforiermesserzylinders and the counter-cylinder are approximately constant, and that before Each passage of the or each Perforationsmessers by the printing material, an acceleration ramp of the Perforiermessers and the counter-cylinder for all Perforationsvortician are approximately equal.
  • the Perforiermesserzylinder is driven such that when a standing for its acceleration ramps peripheral portion is not sufficient to ensure for all Perforationsvor réelle approximately the same acceleration ramps, the Pertoriermesserzyünder back or back is rotatable.
  • the available for the Bescheun onlysrampen peripheral portion can be increased.
  • Fig. 1 shows a highly schematic section of a folder in the region of a Querperforationsappel 10 and a Querperforation unit 10 downstream cross cutting unit 11, wherein a reflection material 12 is transported in the direction of arrow 13 at a defined transport speed through the Querperforationsappel 10.
  • the transverse perforation unit 10 comprises a Perforiermesserzylinder 14 and cooperating with the Perforiermesserzylinder 14 counter-cylinder 15, wherein the web-shaped substrate 12 is conveyed to the formation of transverse perforations at the same between the Perforiermesserzylinder 14 and the counter-cylinder 15 therethrough.
  • the printing substrate 12 reaches the region of the cross cutting unit 11, whereby 12 copies 16 can be separated in the region of the cross cutting unit 11 by cross cutting from the web-shaped printing material.
  • the cross-cutting unit 11 is preferably arranged downstream of a Querfalzü.
  • the transverse perforation unit 10 is preferably preceded by a longitudinal folding unit or a magazine assembly. According to Fig. 1
  • the printing substrate 12 is guided over a plurality of deflection rollers 17 and tension rollers 18.
  • the Perforiermesserzylinder 14 are distributed over the circumference of the same distributed two perforation 19, which are diametrically opposed to the Perforiermesserzylinder 14.
  • the perforation 19 dive when perforating the printing material 12 in corresponding grooves 20 of the counter-cylinder 15 a.
  • the Perforiermesserzylinder 14 is driven by a drive 23 and the counter-cylinder 15 is driven by a drive 25, wherein the drive 23 of the Perforiermesserzylinders 14, a drive controller 22 and the drive 25 of the counter-cylinder 15 is associated with a drive controller 24.
  • the drive controllers 22 and 24 regulate the drives 23 and 25 of perforator cylinder 14 and counter cylinder 15 in such a way that they follow a desired movement profile, wherein the desired movement profile for the two drive controllers 22 and 24 is determined by a device 21.
  • the drive controllers 22 and 24 compare an actual movement of the drives 23 and 25, which is measured by encoders 26 and 27, with the predetermined by the device 21 Sollschulsprofil, the drive controller 22 and 24, the drives 23 and 25 drive such that the actual movement follows the target motion profile.
  • the Perforiermesserzylinder 14 is driven by the drive 23 such that during each passage of the perforation 19 by the substrate 12, a peripheral speed of the Perforiermesserzylinders 14 is approximately constant, and that continue before each passage of each perforation 19 by the substrate 12th an acceleration ramp of the Perforiermesserzylinders 14 is approximately the same for all Perforationsvor réelle. This ensures that all perforations are done with the same accuracy.
  • the Perforiermesserzylinder 14 is preferably driven so that during each passage of each Perforationsmessers 19 by the substrate 12 corresponds to the peripheral speed of the Perforiermesserzylinders 14 or a tip of the respective perforation 19 in about the transport speed of the printing material 12 by the Querperforationsaku 10.
  • the peripheral speed of the Perforiermesserzylinders 14 over the entire production is not constant, but only during the passage of each perforation 19 by the substrate 12.
  • the Perforiermesserzylinder 14 Before and after each passage of a perforation 19 by the substrate 12, the Perforiermesserzylinder 14 is positive and negatively acceleratable.
  • a positive acceleration means an increase of the peripheral speed
  • a negative acceleration means a decrease of the peripheral speed.
  • the Perforiermesserzylinder 14 is rotatable backwards.
  • the reverse rotation provides a certain positional projection, which is utilized in the acceleration in the next transverse perforation, so that the condition of a same change in position per unit time is met for each perforation.
  • the counter-cylinder 15 can be driven by the drive 25 analogously to the Perforiermesserzylinder 14. Accordingly, during each passage of a perforation blade 19 through the printing substrate, a circumferential speed of the countercylinder 15 is approximately constant. Furthermore, before each passage of a perforation blade 19 through the printing substrate 12, an acceleration ramp of the countercylinder 15 is approximately the same for all perforation processes.
  • the counter-cylinder 15 is driven by the drive 25 in such a way that the peripheral speed of the counter-cylinder corresponds approximately to the circumferential speed of the perforating-blade cylinder 14 or a tip of the respective perforation blade 19 during each perforation process. During each perforation process, the circumferential speed of the counter-cylinder 15 thus corresponds approximately to the transport speed of the printing material 12 through the transverse perforation unit 10.
  • Fig. 1 are for the Perforiermesserzylinder 14 and the counter-cylinder 15 separate drives 23 and 25 available. In contrast, it is also possible to drive the counter-cylinder via the drive associated with the perforating cylinder.
  • Fig. 2 schematically shows an exemplary movement profile of a Perforiermesserzylinders 14 of a Querperforationshim invention in the form of a normalized Drehlagesollprofils 28 depending on a Leitachsenburnwinkels 29th
  • the peripheral speed of the perforating cylinder 14 is approximately equal to the peripheral speed of the counter-cylinder 15, the two cylinders are therefore operated uniformly, so that they have an approximately identical following error.
  • Propulsion and control properties that have an influence on the change with time of the following error can be matched to one another with the invention, even with successive transverse perforations with different distances, so that a uniformly high perforation accuracy is achieved.

Landscapes

  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)

Abstract

The perforation unit (10) has a perforation cutter (19) supporting a perforation cutter cylinder (14), and a cutting cylinder (15) interconnected with the cutter cylinder. A sheet-shaped print substrate (12) is moved between the cutter cylinder and cutting cylinder for forming a transverse perforation. The cutter cylinder is driven by a drive such that circumferential speed of the cutter cylinder is approximately constant during opening of the cutter by the substrate. An acceleration ramp of the cutter cylinder is equal for all perforation procedures before each opening of the cutter. An independent claim is also included for a method for operating a transverse perforation unit for a folding apparatus.

Description

Die Erfindung betrifft eine Querperforationseinheit eines Falzapparats einer Druckmaschine. Des weiteren betrifft die Erfindung ein Verfahren zum Betreiben einer Querperforationseinheit eines Falzapparats.The invention relates to a Querperforationseinheit a folding apparatus of a printing press. Furthermore, the invention relates to a method for operating a Querperforationseinheit a folding apparatus.

Falzapparate von Druckmaschinen dienen der Ausbildung von Falzen an bedruckten Bedruckstoffen, wobei bei aus dem Stand der Technik bekannten Falzapparaten ein bahnförmiger Bedruckstoff üblicherweise zuerst durch eine mindestens einen Falztrichter aufweisende erste Längsfalzeinheit geführt wird, um so am bahnförmigen sowie vorzugsweise noch nicht durchtrennten Bedruckstoff einen Längsfalz auszubilden. Ausgehend von der ersten Längsfalzeinheit wird der bahnförmige Bedruckstoff in Richtung auf eine Querschneideeinheit geführt, die zumindest einen Schneidmesserzylinder umfasst. Im Bereich der Querschneideeinheit werden vom bahnförmigen Bedruckstoff Exemplare abgetrennt. Die abgetrennten Exemplare werden einer Querfalzeinheit geführt, die zumindest einen Falzmesserzylinder sowie einen Falzklappenzylinder umfasst. Die im Bereich der Querschneideeinheit vom bahnförmigen Bedruckstoff abgetrennten Exemplare werden vom Falzmesserzylinder in Richtung auf den Falzklappenzylinder bewegt und unter Ausbildung eines ersten Querfalzes vom Falzmesserzylinder an den Falzklappenzylinder übergeben. Weitere, zweite Querfalze sind zwischen dem Falzklappenzylinder und einem Greiferzylinder ausbildbar, der mit dem Falzklappenzylinder zusammenwirkt. Die so mit einem Längsfalz sowie mit mindestens einem Querfalz versehenen Exemplare gelangen ausgehend von der Querfalzeinheit in den Bereich einer zweiten Längsfalzeinheit, die üblicherweise mehrere Falztische umfasst. Im Bereich der zweiten Längsfalzeinheit werden an den bereits vorgefalzten Exemplaren zweite Längsfalze ausgebildet, die parallel zu dem in der ersten Längsfalzeinheit ausgebildeten Längsfalz verlaufen.Folding machines of printing presses serve for the formation of folds on printed substrates, wherein in the case of folding machines known from the prior art, a web-shaped printing stock is usually first passed through a first longitudinal folding unit having at least one former, so as to form a longitudinal fold on the web-shaped and preferably not yet severed printing substrate , Starting from the first longitudinal folding unit, the web-shaped printing material is guided in the direction of a cross-cutting unit, which comprises at least one cutting blade cylinder. In the area of the cross-cutting unit copies are separated from the web-shaped substrate. The separated copies are guided a Querfalzeinheit comprising at least one folding blade cylinder and a jaw cylinder. The separated in the cross cutting unit from the web-shaped substrate copies are moved by the folding blade cylinder in the direction of the jaw cylinder and transferred to form a first transverse fold from the folding blade cylinder to the jaw cylinder. Further, second Querfalze can be formed between the jaw cylinder and a gripper cylinder, which cooperates with the jaw cylinder. The copies thus provided with a longitudinal fold and with at least one transverse fold reach, starting from the transverse folding unit, into the region of a second longitudinal folding unit, which usually comprises a plurality of folding tables. In the region of the second longitudinal folding unit, second longitudinal folds are formed on the already pre-folded copies, which run parallel to the longitudinal fold formed in the first longitudinal folding unit.

An Stelle der ersten Längsfalzeinheit kann auch ein sogenannter Magazinaufbau vorhanden sein, wobei im Magazinaufbau keine Längsfalzung sondern eine Längstrennung des Bedruckstoffs erfolgt.Instead of the first longitudinal folding unit, a so-called magazine structure may also be present, wherein in the magazine structure no longitudinal folding but longitudinal separation of the printing material takes place.

Bei aus dem Stand der Technik bekannten Falzapparaten ist zwischen der ersten Längsfalzeinheit bzw. dem Magazinaufbau und der Querschneideeinheit eine Querperforationseinheit sowie vorzugsweise auch eine Längsperforationseinheit angeordnet, um den im Bereich der ersten Längsfalzeinheit vorgefalzten oder den im Bereich des Magazinaufbaus in Längsrichtung durchtrennten Bedruckstoff zu perforieren. Die jeweiligen Perforationen unterstützen die Ausbildung von Querfalzen in der Querfalzeinheit, die der ersten Längsfalzeinheit oder dem Magazinaufbau nachgeordnet ist, sowie die Ausbildung von Längsfalzen in der zweiten Längsfalzeinheit, die der Querfalzeinheit nachgeordnet ist.In folding machines known from the prior art, a transverse perforation unit and preferably also a longitudinal perforation unit are arranged between the first longitudinal folding unit or the magazine assembly and the perforated in the region of the first Längsfalzeinheit or in the region of the magazine structure in the longitudinal direction severed substrate. The respective perforations aid the formation of transverse creases in the cross-folding unit downstream of the first longitudinal folding unit or the magazine assembly and the formation of longitudinal creases in the second longitudinal folding unit downstream of the transverse folding unit.

Die hier vorliegende Erfindung betrifft eine Querperforationseinheit eines Falzapparats sowie ein Verfahren zum Betreiben einer solchen Querperforationseinheit, wobei aus der Praxis bekannte Querperforationseinheiten einen mindestens ein Perforationsmesser tragenden Perforiermesserzylinder und einen mit dem Perforiermesserzylinder zusammenwirkenden Gegenzylinder aufweisen. Zur Ausbildung von Querperforationen wird ein bahnförmiger Bedruckstoff durch einen zwischen dem Perforiermesserzylinder und dem Gegenzylinder ausgebildeten Spalt mit einer definierten Geschwindigkeit hindurch bewegt.The present invention relates to a Querperforationseinheit a folding apparatus and a method for operating such Querperforationseinheit, wherein known from practice Querperforationseinheiten having a perforating at least Perforiermesserzylinder and cooperating with the Perforiermesserzylinder counter cylinder. To form transverse perforations, a web-shaped printing material is moved through a gap formed between the perforating cylinder and the counter-cylinder at a defined speed.

Bei aus der Praxis bekannten Querperforationseinheiten werden während der gesamten Produktion der Perforiermesserzylinder sowie der Gegenzylinder mit einer konstanten Drehzahl und damit konstanten Umfangsgeschwindigkeit betrieben. So sind mit einer hohen Genauigkeit Querperforationen in den Bedruckstoff einbringbar.In known from practice Querperforationseinheiten the Perforiermesserzylinder and the counter-cylinder are operated at a constant speed and thus constant peripheral speed during the entire production. Thus, transverse perforations can be introduced into the substrate with a high degree of accuracy.

Ein wesentlicher Nachteil der konstanten Umfangsgeschwindigkeit von Perforiermesserzylinder sowie Gegenzylinder besteht darin, dass bei einer Änderung der Anzahl sowie der Lage und damit des Abstands von Querperforationen je von dem bahnförmigen Bedruckstoff abzutrennendem Exemplar am Perforiermesserzylinder und Gegenzylinder aufwendige Änderungen an der Mechanik, so z. B. ein Wechsel der Perforationsmesser oder des gesamten Perforiermesserzylinders sowie Gegenzylinders, durchgeführt werden müssen. Aus der Praxis bekannte Querperforationseinheiten verfügen demnach über eine eingeschränkte Flexibilität.A major disadvantage of the constant peripheral speed of Perforiermesserzylinder and counter-cylinder is that with a change in the number and the location and thus the distance of Querperforationen ever abzutrennendem copy of the web-shaped copy on Perforiermesserzylinder and counter-cylinder complex changes to the mechanics, such. B. a change of the perforation or the entire Perforiermesserzylinders and counter-cylinder, must be performed. From the practice known Querperforationseinheiten therefore have a limited flexibility.

Die internationale Anmeldung WO 98112027 A1 offenbart eine Querperforationseinrichtung für eine Bahn, wobei die Bahn zwischen einem Perforiermesserzylinder und einem mit konstanter Umfangsgeschwindigkeit drehenden Gegendruckzylinder hindurchgeführt wird und die Bahn den Gegendruckzylinder teilweise umschlingt. Ein am Perforiermesserzylinder befindliches Perforiermesser wird durch einen Motor rotiert und in Eingriff mit der Bahn sowie dem Gegendruckzylinder gebracht und verbleibt danach in einer Ruheposition.The international application WO 98/12027 A1 discloses a cross perforator for a web wherein the web is passed between a perforator cylinder and a constant peripheral speed rotating impression cylinder and the web partially wraps around the impression cylinder. A Perforiermesser located on Perforiermesserzylinder is rotated by a motor and brought into engagement with the web and the impression cylinder and then remains in a rest position.

Hiervon ausgehend liegt der vorliegenden Erfindung die Aufgabe zugrunde, eine neuartige Querperforationseinheit eines Falzapparats einer Druckmaschine sowie ein Verfahren zum Betreiben einer Querperforationseinheit eines Falzapparats zu schaffen.On this basis, the present invention seeks to provide a novel Querperforationseinheit a folding apparatus of a printing press and a method for operating a Querperforationseinheit a folding apparatus.

Diese Aufgabe wird durch eine Querperforationseinheit gemäß Anspruch 1 gelöst Erfindungsgemäß sind der Perforiermesserzylinder und der Gegenzylinder derart von einem Antrieb angetrieben, dass während jedes Durchgangs des oder jedes Perforationsmessers durch den Bedruckstoff eine Umfangsgeschwindigkeit des Perforiermesserzylinders und des Gegenzylinders in etwa konstant sind, und dass weiterhin vor jedem Durchgang des oder jedes Perforationsmessers durch den Bedruckstoff eine Beschleunigungsrampe des Perforiermessers und des Gegenzylinders für alle Perforationsvorgänge in etwa gleich sind.This object is achieved by a Querperforationseinheit according to claim 1. According to the Perforiermesserzylinder and the counter-cylinder are driven by a drive that during each passage of the or each Perforationsmessers by the printing material, a peripheral speed of the Perforiermesserzylinders and the counter-cylinder are approximately constant, and that before Each passage of the or each Perforationsmessers by the printing material, an acceleration ramp of the Perforiermessers and the counter-cylinder for all Perforationsvorgänge are approximately equal.

Vorzugsweise ist der Perforiermesserzylinder derart angetrieben, dass dann, wenn ein für dessen Beschleunigungsrampen zur Verfügung stehender Umfangsabschnitt nicht ausreicht, um für alle Perforationsvorgänge in etwa gleiche Beschleunigungsrampen zu gewährleisten, der Pertoriermesserzyünder zurück bzw. rückwärts drehbar ist. Hierdurch kann der für die Beschteunigungsrampen zur Verfügung stehender Umfangsabschnitt vergrößert werden.Preferably, the Perforiermesserzylinder is driven such that when a standing for its acceleration ramps peripheral portion is not sufficient to ensure for all Perforationsvorgänge approximately the same acceleration ramps, the Pertoriermesserzyünder back or back is rotatable. As a result, the available for the Bescheunigungsrampen peripheral portion can be increased.

Das erfindungsgemäße Verfahren zum Betreiben einer Querperforationseinheit eines Falzapparats ist im unabhängigen Anspruch 10 definiert.The method according to the invention for operating a transverse perforation unit of a folding apparatus is defined in independent claim 10.

Bevorzugte Weiterbildungen der Erfindung ergeben sich aus den Unteransprüchen und der nachfolgenden Beschreibung. Ein Ausführungsbeispiel der Erfindung wird, ohne hierauf beschränkt zu sein, an Hand der Zeichnung näher erläutert. Dabei zeigt:

Fig. 1:
einen schematisierten Ausschnitt aus einem Falzapparat einer Druckmaschine im Bereich einer erfindungsgemäßen Querperforationseinheit und einer der Querperforationseinheit nachgeordneten Querschneideeinheit; und
Fig. 2:
ein Beispiel eines Bewegungsprofils für den Perforiermesserzylinder in Abhängigkeit einer Leitachslage.
Preferred embodiments of the invention will become apparent from the dependent claims and the description below. An embodiment of the invention will be described, without being limited thereto, with reference to the drawing. Showing:
Fig. 1:
a schematic section of a folding apparatus of a printing press in the region of a transverse perforation unit according to the invention and a transverse cutting unit arranged downstream of the transverse perforation unit; and
Fig. 2:
an example of a movement profile for the Perforiermesserzylinder depending on a Leitachslage.

Fig. 1 zeigt einen stark schematisierten Ausschnitt aus einem Falzapparat im Bereich einer Querperforationseinheit 10 und einer der Querperforationseinheit 10 nachgeordneten Querschneideeinheit 11, wobei ein Beruckstoff 12 in Richtung des Pfeils 13 mit einer definierten Transportgeschwindigkeit durch die Querperforationseinheit 10 transportiert wird. Fig. 1 shows a highly schematic section of a folder in the region of a Querperforationseinheit 10 and a Querperforation unit 10 downstream cross cutting unit 11, wherein a reflection material 12 is transported in the direction of arrow 13 at a defined transport speed through the Querperforationseinheit 10.

Die Querperforationseinheit 10 umfasst einen Perforiermesserzylinder 14 sowie einen mit dem Perforiermesserzylinder 14 zusammenwirkenden Gegenzylinder 15, wobei der bahnförmige Bedruckstoff 12 zur Ausbildung von Querperforationen an demselben zwischen dem Perforiermesserzylinder 14 und dem Gegenzylinder 15 hindurch gefördert wird. Nach Ausbildung der Querperforationen gelangt der Bedruckstoff 12 in den Bereich der Querschneideeinheit 11, wobei im Bereich der Querschneideeinheit 11 durch Querschneiden vom bahnförmigen Bedruckstoff 12 Exemplare 16 abtrennbar sind.The transverse perforation unit 10 comprises a Perforiermesserzylinder 14 and cooperating with the Perforiermesserzylinder 14 counter-cylinder 15, wherein the web-shaped substrate 12 is conveyed to the formation of transverse perforations at the same between the Perforiermesserzylinder 14 and the counter-cylinder 15 therethrough. After the formation of the transverse perforations, the printing substrate 12 reaches the region of the cross cutting unit 11, whereby 12 copies 16 can be separated in the region of the cross cutting unit 11 by cross cutting from the web-shaped printing material.

Der Querschneideeinheit 11 ist vorzugsweise eine Querfalzeinheit nachgeordnet. Der Querperforationseinheit 10 ist vorzugsweise eine Längsfalzeinheit oder ein Magazinaufbau vorgeschaltet. Gemäß Fig. 1 wird der Bedruckstoff 12 beim Transport desselben über mehrere Umlenkwalzen 17 sowie Zugwalzen 18 geführt. Im gezeigten Ausführungsbeispiel sind dem Perforiermesserzylinder 14 über den Umfang desselben verteilt zwei Perforationsmesser 19 zugeordnet, die sich diametral am Perforiermesserzylinder 14 gegenüber liegen. Die Perforationsmesser 19 tauchen beim Perforieren des Bedruckstoffs 12 in entsprechende Nuten 20 des Gegenzylinders 15 ein.The cross-cutting unit 11 is preferably arranged downstream of a Querfalzeinheit. The transverse perforation unit 10 is preferably preceded by a longitudinal folding unit or a magazine assembly. According to Fig. 1 During printing, the printing substrate 12 is guided over a plurality of deflection rollers 17 and tension rollers 18. In the illustrated embodiment, the Perforiermesserzylinder 14 are distributed over the circumference of the same distributed two perforation 19, which are diametrically opposed to the Perforiermesserzylinder 14. The perforation 19 dive when perforating the printing material 12 in corresponding grooves 20 of the counter-cylinder 15 a.

Der Perforiermesserzylinder 14 wird von einem Antrieb 23 und der Gegenzylinder 15 wird von einem Antrieb 25 angetrieben, wobei dem Antrieb 23 des Perforiermesserzylinders 14 ein Antriebregler 22 und dem Antrieb 25 des Gegenzylinders 15 ein Antriebregler 24 zugeordnet ist. Die Antriebregler 22 und 24 regeln die Antriebe 23 und 25 von Perforiermesserzylinder 14 und Gegenzylinder 15 derart, dass dieselben einem Sollbewegungsprofil folgen, wobei das Sollbewegungsprofil für die beiden Antriebregler 22 und 24 von einer Einrichtung 21 vorgegeben wird. Die Antriebregler 22 und 24 vergleichen eine Istbewegung der Antriebe 23 und 25, die von Gebern 26 und 27 messtechnisch erfasst wird, mit dem von der Einrichtung 21 vorgegebenen Sollbewegungsprofil, wobei die Antriebregler 22 und 24 die Antriebe 23 und 25 derart ansteuern, dass die Istbewegung dem Sollbewegungsprofil folgt.The Perforiermesserzylinder 14 is driven by a drive 23 and the counter-cylinder 15 is driven by a drive 25, wherein the drive 23 of the Perforiermesserzylinders 14, a drive controller 22 and the drive 25 of the counter-cylinder 15 is associated with a drive controller 24. The drive controllers 22 and 24 regulate the drives 23 and 25 of perforator cylinder 14 and counter cylinder 15 in such a way that they follow a desired movement profile, wherein the desired movement profile for the two drive controllers 22 and 24 is determined by a device 21. The drive controllers 22 and 24 compare an actual movement of the drives 23 and 25, which is measured by encoders 26 and 27, with the predetermined by the device 21 Sollbewegungsprofil, the drive controller 22 and 24, the drives 23 and 25 drive such that the actual movement follows the target motion profile.

Im Sinne der hier vorliegenden Erfindung ist der Perforiermesserzylinder 14 vom Antrieb 23 derart angetrieben, dass während jedes Durchgangs der Perforationsmesser 19 durch den Bedruckstoff 12 eine Umfangsgeschwindigkeit des Perforiermesserzylinders 14 in etwa konstant ist, und dass weiterhin vor jedem Durchgang jedes Perforationsmessers 19 durch den Bedruckstoff 12 eine Beschleunigungsrampe des Perforiermesserzylinders 14 für alle Perforationsvorgänge in etwa gleich ist. Hierdurch wird gewährleistet, dass alle Perforationsvorgänge mit der gleichen Genauigkeit erfolgen.For the purposes of the present invention, the Perforiermesserzylinder 14 is driven by the drive 23 such that during each passage of the perforation 19 by the substrate 12, a peripheral speed of the Perforiermesserzylinders 14 is approximately constant, and that continue before each passage of each perforation 19 by the substrate 12th an acceleration ramp of the Perforiermesserzylinders 14 is approximately the same for all Perforationsvorgänge. This ensures that all perforations are done with the same accuracy.

Der Perforiermesserzylinder 14 ist vorzugsweise derart angetrieben, dass während jedes Durchgangs jedes Perforationsmessers 19 durch den Bedruckstoff 12 die Umfangsgeschwindigkeit des Perforiermesserzylinders 14 oder einer Spitze des jeweiligen Perforationsmessers 19 in etwa der Transportgeschwindigkeit des Bedruckstoffs 12 durch die Querperforationseinheit 10 entspricht.The Perforiermesserzylinder 14 is preferably driven so that during each passage of each Perforationsmessers 19 by the substrate 12 corresponds to the peripheral speed of the Perforiermesserzylinders 14 or a tip of the respective perforation 19 in about the transport speed of the printing material 12 by the Querperforationseinheit 10.

Im Sinne der hier vorliegenden Erfindung ist demnach die Umfangsgeschwindigkeit des Perforiermesserzylinders 14 über die gesamte Produktion nicht konstant, sondern ausschließlich während des Durchgangs jedes Perforationsmessers 19 durch den Bedruckstoff 12. Vor und nach jedem Durchgang eines Perforationsmessers 19 durch den Bedruckstoff 12 ist der Perforiermesserzylinder 14 positiv und negativ beschleunigbar. Unter einer positiven Beschleunigung ist eine Zunahme der Umfangsgeschwindigkeit, unter einer negativen Beschleunigung eine Abnahme der Umfangsgeschwindigkeit zu verstehen.According to the present invention, therefore, the peripheral speed of the Perforiermesserzylinders 14 over the entire production is not constant, but only during the passage of each perforation 19 by the substrate 12. Before and after each passage of a perforation 19 by the substrate 12, the Perforiermesserzylinder 14 is positive and negatively acceleratable. A positive acceleration means an increase of the peripheral speed, a negative acceleration means a decrease of the peripheral speed.

Dann, wenn ein für die Beschleunigungsrampen zur Verfügung stehender Umfangsabschnitt des Perforiermesserzylinders 14 nicht ausreicht, um für alle Perforationsvorgänge in etwa gleiche Beschleunigungsrampen zu gewährleisten, ist der Perforiermesserzylinder 14 zurück bzw. rückwärts drehbar. Hierdurch kann der für die Beschleunigungsrampen zur Verfügung stehende Umfangsabschnitt des Perforiermesserzylinders 14 vergrößert bzw. verlängert werden.Then, when a circumferential portion of the perforator blade 14 available for the acceleration ramps is insufficient to provide roughly equal acceleration ramps for all perforation operations, the perforator blade 14 is rotatable backward. As a result, the peripheral portion of the perforating blade cylinder 14 available for the acceleration ramps can be increased or extended.

Mit der vorliegenden Erfindung kann unabhängig von einer Bewegungsform eines Perforiermesserzylinders 14 und damit unabhängig von der Position und dem Abstand von Querperforationen während jedes Perforationsvorgangs sowie unmittelbar vor jedem Perforationsvorgang eine gleiche Lageänderung pro Zeiteinheit realisiert werden. Bei Bewegungsformen, die weniger Lageänderung pro Zeit bedürfen, ist der Perforiermesserzylinder 14 rückwärts drehbar. Das Rückwärtsdrehen verschafft einen gewissen Lagevorsprung, der beim Beschleunigen in die nächste Querperforation ausgenutzt wird, so dass die Bedingung einer gleichen Lageänderung pro Zeiteinheit für jeden Perforationsvorgang erfüllt ist.With the present invention, regardless of a movement form of a Perforiermesserzylinders 14 and thus regardless of the position and the distance of transverse perforations during each perforation and immediately before each perforation a same change in position per unit time can be realized. For forms of motion that require less change in position per time, the Perforiermesserzylinder 14 is rotatable backwards. The reverse rotation provides a certain positional projection, which is utilized in the acceleration in the next transverse perforation, so that the condition of a same change in position per unit time is met for each perforation.

Der Gegenzylinder 15 ist analog zum Perforiermesserzylinder 14 vom Antrieb 25 antreibbar. Während jedes Durchgangs eines Perforationsmessers 19 durch den Bedruckstoff ist demnach eine Umfangsgeschwindigkeit des Gegenzylinders 15 in etwa konstant, weiterhin ist vor jedem Durchgang eines Perforationsmessers 19 durch den Bedruckstoff 12 eine Beschleunigungsrampe des Gegenzylinders 15 für alle Perforationsvorgänge in etwa gleich. Der Gegenzylinder 15 ist derart vom Antrieb 25 angetrieben, dass während jedes Perforationsvorgangs die Umfangsgeschwindigkeit des Gegenzylinders in etwa der Umfangsgeschwindigkeit des Perforiermesserzylinders 14 oder einer Spitze des jeweiligen Perforationsmessers 19 entspricht. Während jedes Perforationsvorgangs entspricht die Umfangsgeschwindigkeit des Gegenzylinders 15 damit in etwa der Transportgeschwindigkeit des Bedruckstoffs 12 durch die Querperforationseinheit 10.The counter-cylinder 15 can be driven by the drive 25 analogously to the Perforiermesserzylinder 14. Accordingly, during each passage of a perforation blade 19 through the printing substrate, a circumferential speed of the countercylinder 15 is approximately constant. Furthermore, before each passage of a perforation blade 19 through the printing substrate 12, an acceleration ramp of the countercylinder 15 is approximately the same for all perforation processes. The counter-cylinder 15 is driven by the drive 25 in such a way that the peripheral speed of the counter-cylinder corresponds approximately to the circumferential speed of the perforating-blade cylinder 14 or a tip of the respective perforation blade 19 during each perforation process. During each perforation process, the circumferential speed of the counter-cylinder 15 thus corresponds approximately to the transport speed of the printing material 12 through the transverse perforation unit 10.

Weiterhin ist in Übereinstimmung zum Perforiermesserzylinder 14 der Gegenzylinder 15 derart angetrieben, dass dann, wenn ein für dessen Beschleunigungsrampen zur Verfügung stehender Umfangsabschnitt nicht ausreicht, um für alle Perforationsvorgänge in etwa gleiche Beschleunigungsrampen zu gewährleisten, der Gegenzylinder 15 zurück bzw. rückwärts drehbar ist.Furthermore, in accordance with the Perforiermesserzylinder 14 of the counter-cylinder 15 is driven so that when a standing for its acceleration ramps peripheral portion is not sufficient to ensure for all Perforationsvorgänge approximately the same acceleration ramps, the counter-cylinder 15 is rotatable back and forth.

Gemäß Fig. 1 sind für den Perforiermesserzylinder 14 sowie den Gegenzylinder 15 separate Antriebe 23 und 25 vorhanden. Im Unterschied hierzu ist es auch möglich, den Gegenzylinder über den dem Perforiermesserzylinder zugeordneten Antrieb anzutreiben.According to Fig. 1 are for the Perforiermesserzylinder 14 and the counter-cylinder 15 separate drives 23 and 25 available. In contrast, it is also possible to drive the counter-cylinder via the drive associated with the perforating cylinder.

Fig. 2 zeigt schematisiert ein exemplarisches Bewegungsprofil eines Perforiermesserzylinders 14 einer erfindungsgemäßen Querperforationseinheit in Form eines normierten Drehlagesollprofils 28 in Abhängigkeit eines Leitachsendrehwinkels 29. Fig. 2 schematically shows an exemplary movement profile of a Perforiermesserzylinders 14 of a Querperforationseinheit invention in the form of a normalized Drehlagesollprofils 28 depending on a Leitachsendrehwinkels 29th

Im Ausführungsbeispiel der Fig. 2 führt der Perforiermesserzylinder 14 je voller Umdrehung der Leitachse fünf Querperforationen aus, wobei nach Ausführung der fünften Querperforation in einem Winkelbereich 30 zwischen in etwa 300 und 350° des Leitachsendrehwinkels der Perforiermesserzylinder 14 zurück bzw. rückwärts gedreht wird, um für einen nachfolgenden Perforationsvorgang eine in etwa gleiche Beschleunigungsrampe zu gewährleisten wie für alle anderen Perforationsvorgänge.In the embodiment of Fig. 2 the Perforiermesserzylinder 14 per full revolution of the leading axis five Querperforationen, wherein after execution of the fifth Querperforation in an angular range 30 between about 300 and 350 ° of the Leitachsendrehwinkels the Perforiermesserzylinder 14 is rotated backwards or backwards, in order for a subsequent perforation a roughly same acceleration ramp as for all other perforations.

Wie bereits erwähnt, entspricht die Umfangsgeschwindigkeit des Perforiermesserzylinders 14 in etwa der Umfangsgeschwindigkeit des Gegenzylinders 15, die beiden Zylinder werden demnach gleichförmig betrieben, so dass dieselben einen annähernd identischen Schleppabstand aufweisen. Antriebs- und regelungstechnische Eigenschaften, die einen Einfluss auf die zeitliche Änderung des Schleppabstands haben, können mit der Erfindung auch bei aufeinander folgenden Querperforationen mit unterschiedlichen Abständen so aneinander angeglichen werden, dass eine gleichmäßig hohe Perforationsgenauigkeit erreicht wird.As already mentioned, the peripheral speed of the perforating cylinder 14 is approximately equal to the peripheral speed of the counter-cylinder 15, the two cylinders are therefore operated uniformly, so that they have an approximately identical following error. Propulsion and control properties that have an influence on the change with time of the following error can be matched to one another with the invention, even with successive transverse perforations with different distances, so that a uniformly high perforation accuracy is achieved.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

1010
QuerperforationseinheitQuerperforationseinheit
1111
QuerschneideeinheitCross cutting unit
1212
Bedruckstoffsubstrate
1313
Transportrichtungtransport direction
1414
Perforiermesserzylinderperforating knife
1515
Gegenzylinderopposing cylinder
1616
Exemplarcopy
1717
Umlenkwalzedeflecting
1818
Zugwalzepulling roller
1919
Perforationsmesserperforation
2020
Nutgroove
2121
EinrichtungFacility
2222
Antriebsreglerdrive controller
2323
Antriebdrive
2424
Antriebsreglerdrive controller
2525
Antriebdrive
2626
Gebergiver
2727
Gebergiver
2828
DrehlagesollprofilRotary position desired profile
2929
LeitachsendrehwinkelLeitachsendrehwinkel
3030
Winkelbereichangle range

Claims (9)

  1. A cross perforation unit of a folder of a printing press, having a perforation knife cylinder carrying at least one perforation knife and an impression cylinder interacting with the perforation knife cylinder, wherein for forming cross perforations a web-shaped substrate can be moved through between the perforation knife cylinder and the impression cylinder, characterized in that the perforation knife cylinder (14) and the impression cylinder (15) are driven by a drive in such a manner that during each passage of the or each perforation knife (19) through the substrate (12) a circumferential speed of the perforation knife cylinder (14) and of the impression cylinder (15) are approximately constant, and in that furthermore before each passage of the or each perforation knife (19) through the substrate (12) an acceleration ramp of the perforation knife cylinder (14) and of the impression cylinder (15) are approximately the same for all perforation operations.
  2. The cross perforation unit according to Claim 1, characterized in that the perforation knife cylinder (14) is driven in such a manner that when a circumferential section that is available for its acceleration ramps is not adequate in order to guarantee approximately identical acceleration ramps for all perforation operations, the perforation knife cylinder (14) can be rotated back or backwards.
  3. The cross perforation unit according to Claim 1 or 2, characterized in that the perforation knife cylinder (14) is driven in such a manner that during each passage of the or each perforation knife (19) through the substrate the circumferential speed of the perforation knife cylinder or a tip of the respective perforation knife (19) approximately corresponds to the speed of the substrate (12).
  4. The cross perforation unit according to any one or a plurality of the Claims 1 to 3, characterized in that before and after each passage of the or each perforation knife (19) through the substrate the perforation knife cylinder (14) can be positively accelerated and negatively accelerated.
  5. The cross perforation unit according to any one of the preceding Claims, characterized in that the impression cylinder (15) is driven in such a manner that when a circumferential section available for its acceleration ramps is not adequate in order to guarantee approximately identical acceleration ramps for all perforation operations, the impression cylinder can be rotated back or backwards.
  6. The cross perforation unit according to any one of the preceding Claims, characterized in that the impression cylinder (15) is driven in such a manner that during each passage of the or each perforation knife through the substrate the circumferential speed of the impression cylinder approximately corresponds to the circumferential speed of the perforation knife cylinder or of a tip of the respective perforation knife.
  7. The cross perforation unit according to any one of the preceding Claims, characterized in that the impression cylinder (15) is driven in such a manner that during each passage of the or each perforation knife through the substrate the circumferential speed of the impression cylinder approximately corresponds to the speed of the substrate.
  8. The cross perforation unit according to any one or a plurality of the Claims 1 to 7, characterized in that before and after each passage of the or each perforation knife through the substrate the impression cylinder (15) of the perforation knife cylinder (14) can be accelerated positively and accelerated negatively.
  9. A method for operating a cross perforation unit of a folder of a printing press, wherein the cross perforation unit comprises a perforation knife cylinder carrying at least one perforation knife and an impression cylinder interacting with the perforation knife cylinder, and wherein for forming cross perforations a web-shaped substrate is moved through between the perforation knife cylinder and the impression cylinder, characterized in that the perforation knife cylinder is driven in such a manner that at least during each passage of the or each perforation knife through the substrate the circumferential speed of the perforation knife cylinder is approximately constant, and in that furthermore before each passage of the or each perforation knife through the substrate an acceleration ramp of the perforation knife cylinder for all perforation operations is approximately equal, wherein the circumferential speed of the perforation knife cylinder (14) approximately corresponds to the circumferential speed of the impression cylinder (15).
EP08001813A 2007-02-01 2008-01-31 Perforation unit of the folding apparatus of a printing press and method for operating the perforation unit of the folding apparatus of a printing press Not-in-force EP1953106B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102007005009A DE102007005009A1 (en) 2007-02-01 2007-02-01 Querperforationseinheit a folding apparatus of a printing press and method for operating a Querperforationseinheit a folding apparatus

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EP1953106A2 EP1953106A2 (en) 2008-08-06
EP1953106A3 EP1953106A3 (en) 2009-08-12
EP1953106B1 true EP1953106B1 (en) 2011-12-14

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Publication number Priority date Publication date Assignee Title
DE102009013850A1 (en) * 2009-03-18 2010-09-23 Robert Bosch Gmbh Method for operating a processing roller
DE102009054766A1 (en) * 2009-12-16 2011-06-22 manroland AG, 63075 Method and device for processing printed products consisting of several paper layers
IT1397984B1 (en) 2010-02-08 2013-02-04 Tecnau Srl CROSS-DRILLING DRIVING EQUIPMENT FOR CONTINUOUS MODULES IN MOTION

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI810219L (en) * 1980-01-31 1981-08-01 Beloit Corp CYCLIC ELECTRIC FITTING FOR SKIN MACHINERY FOR FINISHED PAPER
JPS60142936U (en) * 1984-03-02 1985-09-21 リョービ株式会社 Horizontal perforation device in printing machines, etc., or vertical positioning device for numbering machines, etc.
DE3636246A1 (en) * 1986-10-24 1988-05-05 Roland Man Druckmasch FOLDING APPARATUS WITH A CROSS-PERFORATING DEVICE
DE4230938C2 (en) * 1992-09-16 1995-10-05 Heidelberger Druckmasch Ag Device for in-line perforation of continuous material webs
DE4327466A1 (en) * 1993-08-16 1995-02-23 Roland Man Druckmasch Cross perforating device
EP1047532A1 (en) * 1996-09-17 2000-11-02 Delphax Systems Selectable phase cross-web perforator
ATE219466T1 (en) * 1998-08-18 2002-07-15 Heidelberger Druckmasch Ag METHOD AND DEVICE FOR PERFORATION OF MATERIAL WEBS
DE19931917A1 (en) * 1999-07-08 2001-01-11 Heidelberger Druckmasch Ag Printing paper web combined perforation cutter and folder enhances the folding action of a multi-layered web
JP3387842B2 (en) * 1999-01-11 2003-03-17 株式会社安川電機 Electronic cam type rotary cutter control method and electronic cam curve generation method
DE19935022A1 (en) * 1999-07-26 2001-02-01 Heidelberger Druckmasch Ag Phase setting device for perforating device, with perforating tools and battens on one or more perforating bridges and perforating cylinders adjustable relative to battens
JP4601753B2 (en) * 2000-01-24 2010-12-22 株式会社小森コーポレーション Drive mechanism of perforation device for rotary printing press
DE10128122A1 (en) * 2001-06-09 2002-12-12 Roland Man Druckmasch Drive for a folder
DE10213978A1 (en) * 2002-03-28 2003-10-09 Roland Man Druckmasch Process for cross cutting a running web

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EP1953106A2 (en) 2008-08-06
DE102007005009A1 (en) 2008-08-07
EP1953106A3 (en) 2009-08-12
ATE537097T1 (en) 2011-12-15

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