EP0481172B1 - Rotary printing machine for book and calendar printing, with two longitudinal folding devices - Google Patents

Rotary printing machine for book and calendar printing, with two longitudinal folding devices Download PDF

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Publication number
EP0481172B1
EP0481172B1 EP91111610A EP91111610A EP0481172B1 EP 0481172 B1 EP0481172 B1 EP 0481172B1 EP 91111610 A EP91111610 A EP 91111610A EP 91111610 A EP91111610 A EP 91111610A EP 0481172 B1 EP0481172 B1 EP 0481172B1
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EP
European Patent Office
Prior art keywords
belt
former
longitudinal folding
adjustable
delivery
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP91111610A
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German (de)
French (fr)
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EP0481172A1 (en
Inventor
Gunnar Rau
Albert Heller
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Manroland AG
Original Assignee
MAN Roland Druckmaschinen AG
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Publication of EP0481172A1 publication Critical patent/EP0481172A1/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H45/00Folding thin material
    • B65H45/12Folding articles or webs with application of pressure to define or form crease lines
    • B65H45/22Longitudinal folders, i.e. for folding moving sheet material parallel to the direction of movement
    • B65H45/221Longitudinal folders, i.e. for folding moving sheet material parallel to the direction of movement incorporating folding triangles

Definitions

  • the present invention relates to a web-fed rotary printing press according to the preamble of claim 1 (FR-A-2 588 253).
  • Book printing and calendar printing have processing, and in particular folding, multi-layer material webs in common with newspaper printing. However, they differ from this in that the individual layers must be guided without creases and above all without mutual movement during the movement over the individual folding devices up to the entry into the cutting unit, so that special cuts, such as register cutouts for alphabetical, monthly and other identifications, can be attached to fit. Furthermore, book printing and calendar printing differ from newspaper printing by the variety of formats and types of paper and the comparatively small number of pieces per format to be produced.
  • a folding device is known from German publication DE 25 12 368, which has two longitudinal folding devices.
  • a device for attaching a cross section and a transverse fold and for collecting is arranged between the two longitudinal folding devices.
  • This device is variable with regard to the format size to be achieved and with regard to the number of pages to be processed.
  • the transverse folding device brings about a bend in the material web and - and when collecting - a bend in the folded printed product - which results in a mutual displacement of the individual layers of the printed product.
  • a folding device is known from European patent EP 0 019 202 which, in addition to other folding options, can also produce a double parallel fold in the form of a double transverse fold.
  • the desired printed product could be obtained with this device, but the problem of the mutual displacement of the layers would not be solved.
  • a longitudinal folding device which has a folding former which is displaceable in the direction of the former inclination.
  • This device is suitable for the production of various printed product formats and has the advantage that the angle at which the printing material web, which is referred to as the material web there, wraps around the funnel inlet roller upstream of the former, remains constant when the funnel is displaced, and that the tensile conditions on the material web do not change .
  • it has the disadvantage of requiring a large amount of space, particularly when two such longitudinal folding devices are arranged one behind the other, as would be required to produce a double parallel fold.
  • the object of the invention is to design a web-fed rotary printing press in terms of its folding device with simple constructional means so that different types of printing material webs, such as paper of different grammage and different volume, can be processed into printed products of different formats, and that in particular further processing in downstream units such as for example punching and perforating tools, can be made to fit.
  • FIG. 1 shows a schematic representation of an embodiment of a web-fed rotary printing press according to the invention.
  • a paper web trimming device connects to the printing unit 1, which contains the required number of printing units. This device is used for edge trimming of the paper webs 3 and 4 and has motor-driven cutting knives 5 and 6.
  • the unit 7 adjoining in the direction of web travel serves to regulate the cutting register of the individual paper webs and thus for the exact superimposition of the two paper webs 3 and 4 to form a multi-layer paper web 8. Since the application of the present invention is not limited to the simultaneous processing of two paper webs and also does not depend on the exact number of webs to be brought together, in the following only the multi-layer paper web 8, which in the present application example is therefore two-layer, will be considered.
  • the paper web 8 is a height-adjustable first longitudinal folding device 9 and an adjustable Roll pair 10 fed a non-adjustable second longitudinal folding device 11.
  • the two longitudinal folding devices 9 and 11 are arranged rotated by 90 ° with respect to one another.
  • the thus twice longitudinally folded paper web 8 is then successively a first pulling device 12, a knock-off device 13 provided for securing the downstream units, an exchangeable cassette device 14, a second pulling device 15, a cross cutting device 16, a belt delivery 17 for accelerating the printed products, a stabilizer device 18 and one speed-variable sheet delivery 19 supplied and from there to a further processing device 20 which is not essential to the present invention and is therefore not described here.
  • FIG. 2 shows a schematic representation of the structure of the first longitudinal folding device 9.
  • the paper web 8 coming from the device 7 which serves to regulate the cutting register is fed via an inlet roller 21 to a first former 22 with a replaceable former nose (not shown).
  • An air-flushed rod 23 is attached to the former 22 on the paper feed side in order to reduce the friction of the paper web 8 at the inlet of the former and so to improve the uniformity of the drawing conditions on the paper web 8.
  • a paper guide roller which is also to be attached to the former 22, can also be provided.
  • the folding former 22 is supported by means of connecting elements 25 on four height-adjustable spindle bearings, of which only the two spindle bearings 26 and 27 are visible here.
  • One of the four spindle bearings is adjusted by means of a threaded spindle 28 mounted on the machine frame, which is driven by a motor drive 29.
  • the other three spindle bearings are carried on racks 30 and 31 in a manner known per se.
  • the chain wheels 32 arranged at the inlet end of the former 22 and the chain wheels 33 arranged at the outlet end of the former 22 are each connected by a spindle 34 or 35 provided with a toothing.
  • the spindles 34 and 35 are with the racks 30 and 31 in Intervention.
  • the sprockets 32 and 33 arranged on the same side of the former 22 are connected to one another via chains 36. In this way it is achieved that the former 22 is shifted parallel to itself when the height setting is changed.
  • a second setting of the former that can be achieved in this way, it is shown in dash-dot lines as a former 22 ′ with the air-flushed rod 23 ′.
  • the threaded spindle 28 can be adjusted by means of a motor drive 29.
  • the height adjustment of the former 22 can be automated.
  • the setting can also be done by means of a handwheel or in any other appropriate way.
  • the height adjustment of the first former 22 is such that the folded edge 37 of the paper web 8 which has already been folded is displaced up or down by as much as it corresponds to half the difference in the paper web widths of the previously processed and now to be processed paper web. In this way it is achieved that the center of the paper web 8, once marked with 38 in FIG. 3, always runs in the same plane, irrespective of the format to be produced, in the plane that runs horizontally between the pair of former 43 that follow the second former. In the second setting example of the former 22 'explained above, this results in the new position marked 37' for the folded edge.
  • the paper web 8 which is guided over the folding former 22 and thus folded, is guided by the folding former 22 between the two rollers of the first former discharge roller pair 10, designated 101 and 102 in FIG. 4, and then passed on to the non-adjustable second longitudinal folding device 11, on which the paper web 8 has a second one Time is folded lengthways.
  • the essential elements of the second longitudinal folding device 11 can be seen from FIG. 3. These are a second former feed roller 39, a second folding former 40 and a second pair of former outlet rollers 41.
  • the former outlet roller pair 41 is adjustable in accordance with the paper web 8 to be processed.
  • the arrangement of the second longitudinal folding device 11 is determined by two requirements: On the one hand, the longitudinal folding device 11, viewed in the direction of paper travel, must be rotated 90 ° to the right or to the left relative to the former 22 so that the folded paper web 8 of the second former inlet roller 39 does not twist can be supplied. On the other hand, the longitudinal folding device 11 must be arranged in such a way that the paper web 8 is fed to the downstream unit, here the pulling device 12, without twisting and without lateral offset. This is particularly important since the paper web 8 can only be transported without creases and without the risk of the layers being pushed against one another.
  • first pair of former discharge rollers 10 of the first longitudinal folding device 9 is not to be attached to this, but to the frame of the second longitudinal folding device 11.
  • This also explains the length of the rollers of the pair of funnel outlet roller 10 of the first longitudinal folding device 9 and of the funnel inlet roller 39 of the second longitudinal folding device 11, which is designed to be half the maximum width of the material webs to be processed.
  • the longitudinal folding devices 9 and 11 are arranged such that the paper web 8, which is guided perpendicularly to the plane of the drawing and comes out of the unit 7 from below, after passing through the inlet roller pair 21 with a more or less greatly reduced pitch on the air-circulated, likewise rod 23 which is perpendicular to the plane of the drawing and is folded down by the former 22.
  • the folded edge 37 forms the upper edge of the paper web 8 now running in the plane of the drawing.
  • the second longitudinal fold is then attached in such a way that the new folding edge 42 is at the front as seen by the viewer, that is to say it points toward the operating side of the printing press.
  • the second longitudinal folding device 11 can also be arranged rotated 90 ° to the left relative to the first longitudinal folding device 9.
  • the second longitudinal fold is attached in such a way that the new fold edge 42 lies at the rear as viewed by the viewer, that is to say points toward the drive side of the printing press.
  • FIGS. 4 and 5 each show a top view of the two arrangements of the longitudinal folding devices 9 and 11 described above with the resultant course of the paper web 8 and the respective position of the folding edge.
  • the fold edge also serves as the reference edge for the subsequent processing steps. Therefore, the choice for one or the other arrangement of the two longitudinal folding devices is made exclusively on the basis of the spatial arrangement of the further processing device 20 in relation to the sheet delivery 13.
  • the second longitudinal fold is attached in such a way that the folded edge 42, as seen by the viewer, is optionally at the front or rear, that is to say either points to the operating side or to the drive side of the printing press.
  • the former feed roller 39 is not arranged on the same side of the paper web 8 as the folding former 40, contrary to the practice previously practiced. In this way, the web tension to be produced in front of the former 40 is produced with a single roller. In addition to a short construction, this also means that the paper web 8 is deflected only slightly and only once.
  • the exchangeable cassette device 14 is designed in such a way that it can accommodate different tool cassettes designed according to the principle of insertion technology, so as to increase the production variety of the printing press.
  • a punching device and a perforating device may be mentioned here as an example of two such inserts or exchangeable cassettes.
  • FIG. 6 shows the essential elements of the adjustable belt delivery 17 in a highly schematic plan view.
  • the purpose of the adjustability of the belt delivery 17 is to be able to guide the printed products fed by the cross-cutting device 16 reliably and uniformly over the entire width, regardless of the generated format.
  • the belt delivery 17 has a pair of non-adjustable Conveyor belts 43 and three pairs of adjustable conveyor belts 44, 45 and 46. Each of these pairs consists of an upper band and a lower band. For the sake of clarity, FIG. 6 shows only the upper belts of the conveyor belt pairs 43 to 46.
  • the belt delivery 17 each has at least two belt rollers 47 and 48 for driving and guiding the upper and lower belts, as well as a non-adjustable product side guide element 49 and an adjustable product side guide element 50. Furthermore, the belt delivery 17 has, as the means required for the adjustment, a spindle 51 provided with a thread or a worm gear with a handwheel 52 and the band guide rollers 53 receiving the spindle 51 and provided with a suitable internal thread or inner worm gear. Rotation of the handwheel 52 and thus the spindle 51 causes a displacement of the belt guide rollers 53 along the axis of the spindle 51 and a corresponding displacement of the product side guide element 50.
  • the adjustment of the conveyor belts 44 to 46 takes place in such a way that the printed products, depending on the width, total two, three or four pairs of conveyor belts.
  • the conveyor belt pairs 43 to 46 are driven in a manner known per se by means of a drive train derived from the main drive of the printing press.
  • the stabilizer device 18 arranged downstream of the belt delivery 17 has in the region of the sheet transfer from the belt delivery 17 to the sheet delivery 19 on a driven shaft at least one cam 181 which is driven at the speed of the belt delivery 17.
  • the purpose of this device is to ensure, in particular with lighter papers and at higher speeds, that each printed product pushes quickly and safely and thus evenly onto the previous printed product, thus creating the uniform stream of flakes required for proper further processing of the printed products.
  • the sheet delivery 19 has a non-adjustable and three adjustable conveyor belt pairs 54 to 57, each of which runs over at least two belt rollers 61 and 62, and its structure is essentially the same as the structure of the belt delivery 17. The same also applies to the adjustment of the conveyor belts for the tape guide rollers 58 are provided. Therefore, a separate description of the sheet delivery 19 is omitted.
  • the conveyor belt pairs 54 to 57 of the sheet delivery 19 are driven by a tachometer-controlled electric motor and that the belt speed of the sheet delivery 19 is different from that of the belt delivery 17.
  • the belt speed of the sheet delivery 19 is variable in such a way that an increase in speed causes an increase in scale spacing and a decrease in this speed causes a reduction in scale spacing.
  • an electronic control ensures that the scale distance always remains the same when the speed of the paper web 8 changes.
  • a perforating device can be placed in front of the first longitudinal folding device 9, which perforation creates a perforation along the center line of the paper web 9.
  • Such a measure facilitates folding, in particular in the case of multilayer paper webs made of thicker or heavier paper, and creates a preferred route for the remaining air to be pressed out of the spaces between the individual paper layers during folding.

Landscapes

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

Description

Die vorliegende Erfindung betrifft eine Rollenrotationsdruckmaschine nach dem Oberbegriff des Patentanspruchs 1 (FR-A-2 588 253).The present invention relates to a web-fed rotary printing press according to the preamble of claim 1 (FR-A-2 588 253).

Der Bücherdruck und der Kalenderdruck haben mit dem Zeitungsdruck die Verarbeitung, und insbesondere das Falzen, mehrlagiger Materialbahnen gemeinsam. Sie unterscheiden sich jedoch von diesem insofern, als die einzelnen Lagen während der Bewegung über die einzelnen Falzvorrichtungen bis zum Einlauf ins Schneidaggregat faltenfrei und vor allem ohne gegenseitige Verschiebung geführt werden müssen, damit Sonderschnitte, wie zum Beispiel Registerausschnitte für alphabetische, monatsweise und andere Kennzeichnungen, paßgerecht angebracht werden können. Weiterhin unterscheiden sich der Bücherdruck und der Kalenderdruck vom Zeitungsdruck durch die Format- und Papierartenvielfalt und die vergleichsweise geringe Stückzahl je zu erzeugenden Formats.Book printing and calendar printing have processing, and in particular folding, multi-layer material webs in common with newspaper printing. However, they differ from this in that the individual layers must be guided without creases and above all without mutual movement during the movement over the individual folding devices up to the entry into the cutting unit, so that special cuts, such as register cutouts for alphabetical, monthly and other identifications, can be attached to fit. Furthermore, book printing and calendar printing differ from newspaper printing by the variety of formats and types of paper and the comparatively small number of pieces per format to be produced.

Aus der deutschen Auslegeschrift DE 25 12 368 ist eine Falzvorrichtung bekannt, die zwei Längsfalzvorrichtungen aufweist. Bei dieser Falzvorrichtung ist zwischen den beiden Längsfalzvorrichtungen eine Vorrichtung zum Anbringen eines Querschnitts und eines Querfalzes sowie zum Sammeln angeordnet. Diese Vorrichtung ist hinsichtlich der zu erzielenden Formatgröße und hinsichtlich der zu verarbeitenden Seitenzahl variabel. Nachteilig ist jedoch, daß die Querfalzvorrichtung eine Biegung der Materialbahn und - und beim Sammeln eine Biegung des gefalzten Druckprodukts - mit sich bringt, was eine gegenseitige Verschiebung der einzelnen Lagen des Druckprodukts zur Folge hat.A folding device is known from German publication DE 25 12 368, which has two longitudinal folding devices. In this folding device, a device for attaching a cross section and a transverse fold and for collecting is arranged between the two longitudinal folding devices. This device is variable with regard to the format size to be achieved and with regard to the number of pages to be processed. However, it is disadvantageous that the transverse folding device brings about a bend in the material web and - and when collecting - a bend in the folded printed product - which results in a mutual displacement of the individual layers of the printed product.

Aus dem europäischen Patent EP 0 019 202 ist eine Falzvorrichtung bekannt, die neben anderen Falzmöglichkeiten auch einen Doppelparallelfalz in Form eines doppelten Querfalzes erzeugen kann. Mit dieser Vorrichtung könnte das gewünschte Druckprodukt zwar im Prinzip erhalten werden, aber das Problem der gegenseitigen Verschiebung der Lagen wäre nicht gelöst.A folding device is known from European patent EP 0 019 202 which, in addition to other folding options, can also produce a double parallel fold in the form of a double transverse fold. In principle, the desired printed product could be obtained with this device, but the problem of the mutual displacement of the layers would not be solved.

Aus dem deutschen Patent DE 36 24 990 ist eine Längsfalzvorrichtung bekannt, die einen in Richtung der Trichterneigung verschiebbar angeordneten Falztrichter aufweist. Diese Vorrichtung eignet sich zur Erzeugung verschiedener Druckerzeugnisformate und hat den Vorteil, daß der Winkel, mit dem die dort als Materialbahn bezeichnete Bedruckstoffbahn die dem Falztrichter vorgeschaltete Trichtereinlaufwalze umschlingt, bei einer Verschiebung des Trichters konstant bleibt und daß sich so die Zugverhältnisse an der Materialbahn nicht ändern. Sie hat jedoch den Nachteil des großen Platzbedarfs, insbesondere dann, wenn zwei derartige Längsfalzvorrichtungen hintereinander angeordnet werden, wie dies zum Erzeugen eines Doppelparallelfalzes erforderlich wäre.From the German patent DE 36 24 990 a longitudinal folding device is known which has a folding former which is displaceable in the direction of the former inclination. This device is suitable for the production of various printed product formats and has the advantage that the angle at which the printing material web, which is referred to as the material web there, wraps around the funnel inlet roller upstream of the former, remains constant when the funnel is displaced, and that the tensile conditions on the material web do not change . However, it has the disadvantage of requiring a large amount of space, particularly when two such longitudinal folding devices are arranged one behind the other, as would be required to produce a double parallel fold.

Aufgabe der Erfindung ist es, eine Rollenrotationsdruckmaschine hinsichtlich ihrer Falzvorrichtung mit einfachen konstruktiven Mitteln so auszubilden, daß verschiedenartige Bedruckstoffbahnen, wie zum Beispiel Papier unterschiedlicher Grammage und unterschiedlichen Volumens, zu Druckprodukten unterschiedlichen Formats verarbeitet werden können und daß dabei insbesondere die Weiterverarbeitung in nachgeschalteten Aggregaten, wie zum Beispiel Stanz- und Perforierwerkzeugen, paßgerecht erfolgen kann.The object of the invention is to design a web-fed rotary printing press in terms of its folding device with simple constructional means so that different types of printing material webs, such as paper of different grammage and different volume, can be processed into printed products of different formats, and that in particular further processing in downstream units such as for example punching and perforating tools, can be made to fit.

Diese Aufgabe wird durch eine Rollenrotationsdruckmaschine mit den Merkmalen des Patentanspruchs 1 gelöst. Vorteilhafte Weiterbildungen der Erfindung sind Gegenstand von Unteransprüchen.This object is achieved by a web-fed rotary printing press with the features of patent claim 1. Advantageous developments of the invention are the subject of dependent claims.

Weitere Merkmale und Zweckmäßigkeiten der Erfindung ergeben sich aus der Beschreibung eines Ausführungsbeispiels anhand der Figuren. Von den Figuren zeigen:

Fig. 1
eine schematische Darstellung einer Rollenrotationsdruckmaschine in einer erfindungsgemäßen Ausführungsform;
Fig. 2
eine schematische Darstellung des Aufbaus der ersten Längsfalzvorrichtung 9;
Fig. 3
eine schematische Darstellung der wesentlichen Elemente der zweiten Längsfalzvorrichtung 11;
Fig. 4
in schematischer Darstellung eine Draufsicht der Anordnung der beiden Längsfalzvorrichtungen 9 und 11 gemäß Figur 1;
Fig. 5
in schematischer Darstellung eine Draufsicht der Anordnung der beiden Längsfalzvorrichtungen 9 und 11 mit gegenüber der Anordnung von Figur 4 geänderter Anordnung der zweiten Längsfalzvorrichtung 11;
Fig. 6
in stark schematisierter Draufsicht die wesentlichen Elemente der verstellbaren Bandauslage 17 und
Fig. 7
in stark schematisierter Draufsicht die wesentlichen Elemente der verstellbaren Bogenauslage 19.
Further features and advantages of the invention result from the description of an embodiment with reference to the figures. From the figures show:
Fig. 1
a schematic representation of a web-fed rotary printing press in an embodiment according to the invention;
Fig. 2
a schematic representation of the structure of the first longitudinal folding device 9;
Fig. 3
a schematic representation of the essential elements of the second longitudinal folding device 11;
Fig. 4
a schematic representation of a top view of the arrangement of the two longitudinal folding devices 9 and 11 according to Figure 1;
Fig. 5
a schematic representation of a top view of the arrangement of the two longitudinal folding devices 9 and 11 with the arrangement of the second longitudinal folding device 11 changed compared to the arrangement of FIG. 4;
Fig. 6
in a highly schematic plan view the essential elements of the adjustable belt delivery 17 and
Fig. 7
the essential elements of the adjustable sheet delivery 19 in a highly schematic plan view.

Figur 1 zeigt eine schematische Darstellung eines erfindungsgemäßen Ausführungsbeispiels einer Rollenrotationsdruckmaschine. An das Druckwerksaggregat 1, das die erforderliche Zahl von Druckwerken enthält, schließt sich eine Papierbahnbesäumvorrichtung an. Diese Vorrichtung dient zur Randbesäumung der Papierbahnen 3 und 4 und weist motorisch angetriebene Schneidmesser 5 und 6 auf. Das sich in Bahnlaufrichtung anschließende Aggregat 7 dient zur Regelung des Schnittregisters der einzelnen Papierbahnen und damit zum genauen Übereinanderlegen der beiden Papierbahnen 3 und 4 zu einer mehrlagigen Papierbahn 8. Da die Anwendung der vorliegenden Erfindung nicht auf die gleichzeitige Verarbeitung von zwei Papierbahnen beschränkt ist und auch nicht von der genauen Zahl der aufeinander zu bringenden Bahnen abhängt, wird im folgenden nur noch die mehrlagige, beim vorliegenden Anwendungsbeispiel also zweilagige Papierbahn 8 betrachtet. Die Papierbahn 8 wird über eine höhenverstellbare erste Längsfalzvorrichtung 9 und ein einstellbares Walzenpaar 10 einer nicht verstellbaren zweiten Längsfalzvorrichtung 11 zugeführt. Dabei sind die beiden Längsfalzvorrichtungen 9 und 11 zueinander um 90° verdreht angeordnet. Die somit zweimal längsgefalzte Papierbahn 8 wird anschließend nacheinander einer ersten Zugvorrichtung 12, einer zur Sicherung der nachgeordneten Aggregate vorgesehenen Abschlagvorrichtung 13, einer Wechselkassettenvorrichtung 14, einer zweiten Zugvorrichtung 15, einer Querschneidvorrichtung 16, einer Bandauslage 17 zur Beschleunigung der Druckprodukte, einer Stabilisatorvorrichtung 18 und einer geschwindigkeitsvariablen Bogenauslage 19 zugeführt und von dort an eine für die vorliegende Erfindung unwesentliche und daher hier nicht näher beschriebene Weiterverarbeitungsvorrichtung 20 weitergeleitet.Figure 1 shows a schematic representation of an embodiment of a web-fed rotary printing press according to the invention. A paper web trimming device connects to the printing unit 1, which contains the required number of printing units. This device is used for edge trimming of the paper webs 3 and 4 and has motor-driven cutting knives 5 and 6. The unit 7 adjoining in the direction of web travel serves to regulate the cutting register of the individual paper webs and thus for the exact superimposition of the two paper webs 3 and 4 to form a multi-layer paper web 8. Since the application of the present invention is not limited to the simultaneous processing of two paper webs and also does not depend on the exact number of webs to be brought together, in the following only the multi-layer paper web 8, which in the present application example is therefore two-layer, will be considered. The paper web 8 is a height-adjustable first longitudinal folding device 9 and an adjustable Roll pair 10 fed a non-adjustable second longitudinal folding device 11. The two longitudinal folding devices 9 and 11 are arranged rotated by 90 ° with respect to one another. The thus twice longitudinally folded paper web 8 is then successively a first pulling device 12, a knock-off device 13 provided for securing the downstream units, an exchangeable cassette device 14, a second pulling device 15, a cross cutting device 16, a belt delivery 17 for accelerating the printed products, a stabilizer device 18 and one speed-variable sheet delivery 19 supplied and from there to a further processing device 20 which is not essential to the present invention and is therefore not described here.

Figur 2 zeigt in schematischer Darstellung den Aufbau der ersten Längsfalzvorrichtung 9. Die aus der der Schnittregisterregelung dienenden Vorrichtung 7 kommende Papierbahn 8 wird über eine Einlaufwalze 21 einem ersten Falztrichter 22 mit (nicht dargestellter) auswechselbarer Trichternase zugeführt. Am Falztrichter 22 ist an der Papierzulaufseite eine luftumspülte Stange 23 angebracht, um die Reibung der Papierbahn 8 am Falztrichtereinlauf zu reduzieren und um so die Gleichmäßigkeit der Zugverhältnisse an der Papierbahn 8 zu verbessern. Anstelle der luftumspülten Stange 23 kann auch eine ebenfalls am Falztrichter 22 anzubringende Papierleitwalze vorgesehen werden. Der Falztrichter 22 ist mittels Verbindungselementen 25 an vier höhenverstellbar angebrachten Spindellagern gelagert, von denen hier nur die beiden Spindellager 26 und 27 sichtbar sind. Eins der vier Spindellager wird mittels einer am Maschinengestell gelagerten Gewindespindel 28 verstellt, die von einem motorischen Antrieb 29 angetrieben wird. Die anderen drei Spindellager werden in an sich bekannter Weise an Zahnstangen 30 und 31 mitgeführt. Dazu sind die am Zulaufende des Falztrichters 22 angeordneten Kettenräder 32 und die am Ablaufende des Falztrichters 22 angeordneten Kettenräder 33 jeweils durch eine mit einer Verzahnung versehene Spindel 34 bzw. 35 verbunden. Die Spindeln 34 und 35 stehen mit den Zahnstangen 30 bzw. 31 in Eingriff. Ferner sind die jeweils auf derselben Seite des Falztrichters 22 angeordneten Kettenräder 32 bzw. 33 über Ketten 36 miteinander verbunden. Auf diese Weise wird erreicht, daß der Falztrichter 22 bei einer Veränderung der Höheneinstellung zu sich selbst parallel verschoben wird. Als Beispiel einer zweiten derart erreichbaren Einstellung des Falztrichters ist dieser strichpunktiert als Falztrichter 22' mit der luftumspülten Stange 23' dargestellt.FIG. 2 shows a schematic representation of the structure of the first longitudinal folding device 9. The paper web 8 coming from the device 7 which serves to regulate the cutting register is fed via an inlet roller 21 to a first former 22 with a replaceable former nose (not shown). An air-flushed rod 23 is attached to the former 22 on the paper feed side in order to reduce the friction of the paper web 8 at the inlet of the former and so to improve the uniformity of the drawing conditions on the paper web 8. Instead of the air-flushed rod 23, a paper guide roller, which is also to be attached to the former 22, can also be provided. The folding former 22 is supported by means of connecting elements 25 on four height-adjustable spindle bearings, of which only the two spindle bearings 26 and 27 are visible here. One of the four spindle bearings is adjusted by means of a threaded spindle 28 mounted on the machine frame, which is driven by a motor drive 29. The other three spindle bearings are carried on racks 30 and 31 in a manner known per se. For this purpose, the chain wheels 32 arranged at the inlet end of the former 22 and the chain wheels 33 arranged at the outlet end of the former 22 are each connected by a spindle 34 or 35 provided with a toothing. The spindles 34 and 35 are with the racks 30 and 31 in Intervention. Furthermore, the sprockets 32 and 33 arranged on the same side of the former 22 are connected to one another via chains 36. In this way it is achieved that the former 22 is shifted parallel to itself when the height setting is changed. As an example of a second setting of the former that can be achieved in this way, it is shown in dash-dot lines as a former 22 ′ with the air-flushed rod 23 ′.

Im vorliegenden Ausführungsbeispiel ist die Gewindespindel 28 mittels eines motorischen Antriebs 29 verstellbar. Dadurch ist die Höheneinstellung des Falztrichters 22 automatisierbar. Die Einstellung kann aber auch mittels eines Handrads oder auf jede andere zweckmäßige Weise erfolgen.In the present exemplary embodiment, the threaded spindle 28 can be adjusted by means of a motor drive 29. As a result, the height adjustment of the former 22 can be automated. The setting can also be done by means of a handwheel or in any other appropriate way.

Die Höhenverstellung des ersten Falztrichters 22 erfolgt derart, daß die Falzkante 37 der bereits einmal gefalzten Papierbahn 8 um soviel nach oben oder nach unten versetzt wird, wie es der Hälfte des Unterschieds der Papierbahnbreiten von zuvor verarbeiteter und nun zu verarbeitender Papierbahn entspricht. Auf diese Weise wird erreicht, daß die in Figur 3 mit 38 gekennzeichnete Mitte der einmal gefalzten Papierbahn 8 unabhängig vom zu erzeugenden Format immer in derselben Ebene verläuft, und zwar in der Ebene, die horizontal zwischen dem dem zweiten Falztrichter 40 nachgeordneten Trichterauslaufwalzenpaar 41 verläuft. Bei dem weiter oben erläuterten zweiten Einstellbeispiel des Falztrichters 22' ergibt sich somit für die Falzkante die mit 37' gekennzeichnete neue Lage.The height adjustment of the first former 22 is such that the folded edge 37 of the paper web 8 which has already been folded is displaced up or down by as much as it corresponds to half the difference in the paper web widths of the previously processed and now to be processed paper web. In this way it is achieved that the center of the paper web 8, once marked with 38 in FIG. 3, always runs in the same plane, irrespective of the format to be produced, in the plane that runs horizontally between the pair of former 43 that follow the second former. In the second setting example of the former 22 'explained above, this results in the new position marked 37' for the folded edge.

Die über den Falztrichter 22 geführte und so gefalzte Papierbahn 8 wird vom Falztrichter 22 zwischen den beiden in Figur 4 mit 101 und 102 bezeichneten Walzen des ersten Trichterauslaufwalzenpaars 10 hindurch geführt und dann zur nicht verstellbaren zweiten Längsfalzvorrichtung 11 weitergeführt, an der die Papierbahn 8 ein zweites Mal längsgefalzt wird.The paper web 8, which is guided over the folding former 22 and thus folded, is guided by the folding former 22 between the two rollers of the first former discharge roller pair 10, designated 101 and 102 in FIG. 4, and then passed on to the non-adjustable second longitudinal folding device 11, on which the paper web 8 has a second one Time is folded lengthways.

Die wesentlichen Elemente der zweiten Längsfalzvorrichtung 11 sind aus der Figur 3 ersichtlich. Es sind dies eine zweite Trichtereinlaufwalze 39, ein zweiter Falztrichter 40 und ein zweites Trichterauslaufwalzenpaar 41. Das Trichterauslaufwalzenpaar 41 ist entsprechend der zu verarbeitenden Papierbahn 8 einstellbar. Die Anordnung der zweiten Längsfalzvorrichtung 11 wird durch zwei Erfordernisse bestimmt: Zum einen muß die Längsfalzvorrichtung 11, in Papierlaufrichtung gesehen, gegenüber dem Falztrichter 22 um 90° nach rechts oder nach links gedreht angeordnet sein, damit die gefalzte Papierbahn 8 der zweiten Trichtereinlaufwalze 39 ohne Verwindung zugeführt werden kann. Zum anderen muß die Längsfalzvorrichtung 11 so angeordnet sein, daß die ablaufende Papierbahn 8 dem nachgeordneten Aggregat, hier der Zugvorrichtung 12, ohne Verwindung und ohne seitlichen Versatz zugeführt wird. Dies ist besonders wichtig, da die Papierbahn 8 nur so faltenfrei und ohne die Gefahr des Gegeneinanderverschiebens der Lagen weitertransportiert werden kann.The essential elements of the second longitudinal folding device 11 can be seen from FIG. 3. These are a second former feed roller 39, a second folding former 40 and a second pair of former outlet rollers 41. The former outlet roller pair 41 is adjustable in accordance with the paper web 8 to be processed. The arrangement of the second longitudinal folding device 11 is determined by two requirements: On the one hand, the longitudinal folding device 11, viewed in the direction of paper travel, must be rotated 90 ° to the right or to the left relative to the former 22 so that the folded paper web 8 of the second former inlet roller 39 does not twist can be supplied. On the other hand, the longitudinal folding device 11 must be arranged in such a way that the paper web 8 is fed to the downstream unit, here the pulling device 12, without twisting and without lateral offset. This is particularly important since the paper web 8 can only be transported without creases and without the risk of the layers being pushed against one another.

Aus den Gründen für die vorstehend beschriebene Anordnung der beiden Längsfalzvorrichtungen 9 und 11 ergibt sich, daß das erste Trichterauslaufwalzenpaar 10 der ersten Längsfalzvorrichtung 9 nicht an dieser, sondern am Gestell der zweiten Längsfalzvorrichtung 11 anzubringen ist. Ferner erklärt sich daraus auch die auf die Hälfte der maximalen Breite der zu verarbeitende Materialbahnen ausgelegte Länge der Walzen des Trichterauslaufwalzenpaars 10 der ersten Längsfalzvorrichtung 9 und der Trichtereinlaufwalze 39 der zweiten Längsfalzvorrichtung 11.For the reasons for the arrangement of the two longitudinal folding devices 9 and 11 described above, it follows that the first pair of former discharge rollers 10 of the first longitudinal folding device 9 is not to be attached to this, but to the frame of the second longitudinal folding device 11. This also explains the length of the rollers of the pair of funnel outlet roller 10 of the first longitudinal folding device 9 and of the funnel inlet roller 39 of the second longitudinal folding device 11, which is designed to be half the maximum width of the material webs to be processed.

Bei dem in Figur 1 dargestellten Ausführungsbeispiel sind die Längsfalzvorrichtungen 9 und 11 so angeordnet, daß die zur Zeichenebene senkrecht geführte und aus dem Aggregat 7 von unten herauskommende Papierbahn 8 nach dem Durchlaufen des Einlaufwalzenpaars 21 mit mehr oder weniger stark verringerter Steigung auf die luftumspülte, ebenfalls zur Zeichenebene senkrecht stehende Stange 23 gelangt und durch den Falztrichter 22 nach unten umgefalzt wird. Dadurch bildet die Falzkante 37 die obere Kante der nun in der Zeichenebene verlaufenden Papierbahn 8. Der zweite Längsfalz wird dann so angebracht, daß die neue Falzkante 42 vom Betrachter aus gesehen vorne liegt, das heißt, zur Bedienseite der Druckmaschine hin zeigt.In the embodiment shown in Figure 1, the longitudinal folding devices 9 and 11 are arranged such that the paper web 8, which is guided perpendicularly to the plane of the drawing and comes out of the unit 7 from below, after passing through the inlet roller pair 21 with a more or less greatly reduced pitch on the air-circulated, likewise rod 23 which is perpendicular to the plane of the drawing and is folded down by the former 22. As a result, the folded edge 37 forms the upper edge of the paper web 8 now running in the plane of the drawing. The second longitudinal fold is then attached in such a way that the new folding edge 42 is at the front as seen by the viewer, that is to say it points toward the operating side of the printing press.

In Abänderung der in Figur 1 dargestellten Ausführungsform kann die zweite Längsfalzvorrichtung 11 gegenüber der ersten Längsfalzvorrichtung 9 auch um 90° nach links gedreht angeordnet sein. In diesem Fall wird der zweite Längsfalz derart angebracht, daß die neue Falzkante 42 vom Betrachter aus gesehen hinten liegt, das heißt, zur Antriebsseite der Druckmaschine hin zeigt.In a modification of the embodiment shown in FIG. 1, the second longitudinal folding device 11 can also be arranged rotated 90 ° to the left relative to the first longitudinal folding device 9. In this case, the second longitudinal fold is attached in such a way that the new fold edge 42 lies at the rear as viewed by the viewer, that is to say points toward the drive side of the printing press.

Die Figuren 4 und 5 zeigen jeweils in einer Draufsicht die beiden vorstehend beschriebenen Anordnungen der Längsfalzvorrichtungen 9 und 11 mit dem sich daraus ergebenden Verlauf der Papierbahn 8 und der jeweiligen Lage der Falzkante. Die Falzkante dient gleichzeitig als Bezugskante für die nachgeordneten Verarbeitungsschritte. Deshalb wird die Wahl für die eine oder die andere Anordnung der beiden Längsfalzvorrichtungen ausschließlich aufgrund der räumlichen Anordnung der Weiterverarbeitungsvorrichtung 20 in Bezug auf die Bogenauslage 13 getroffen.FIGS. 4 and 5 each show a top view of the two arrangements of the longitudinal folding devices 9 and 11 described above with the resultant course of the paper web 8 and the respective position of the folding edge. The fold edge also serves as the reference edge for the subsequent processing steps. Therefore, the choice for one or the other arrangement of the two longitudinal folding devices is made exclusively on the basis of the spatial arrangement of the further processing device 20 in relation to the sheet delivery 13.

Als weitere Alternative bietet sich eine im wesentlichen vertikale Anordnung der beiden Längsfalzvorrichtungen 9 und 11 mit im wesentlichen aufsteigender oder abfallender Laufrichtung der Papierbahn 8 an. Auch diese Anordnung trifft den Gedanken der vorliegenden Erfindung, solange die Papierbahn nach Verlassen der zweiten Längsfalzvorrichtung 11 geradlinig weitertransportiert wird. Denn nur so ist gewährleistet, daß die nachgeordneten Zugwalzen sowie Stanz- und Perforierwerkzeuge von der Papierbahn 8 nur tangiert werden und es so gerade bei schwereren und höher volumigeren Papieren, insbesondere bei mehrlagiger Papierbahn, zu keiner Faltenbildung ("Krähenfüße") kommt.As a further alternative, there is an essentially vertical arrangement of the two longitudinal folding devices 9 and 11 with an essentially ascending or descending running direction of the paper web 8. This arrangement also meets the concept of the present invention as long as the paper web is transported in a straight line after leaving the second longitudinal folding device 11. This is the only way to ensure that the downstream pulling rollers as well as punching and perforating tools are only affected by the paper web 8, and so there is no wrinkling ("crow's feet"), especially with heavier and more voluminous papers, especially with multilayer paper web.

Praktisch weniger von Bedeutung ist die Möglichkeit, mindestens die Vorrichtung 3 für die Schnittregisterregelung in der Druckmaschine so hoch anzuordnen, daß die Papierbahn 8 von der Vorrichtung 3 aus nach unten geführt wird, und die beiden Längsfalzvorrichtungen 9 und 11 in gegenüber dem oben beschriebenen Ausführungsbeispiel bzw. gegenüber dessen Variante um 180° gedrehter Lage anzuordnen. Auf diese Weise kann ebenfalls erreicht werden, daß der zweite Längsfalz so angebracht wird, daß die Falzkante 42 vom Betrachter aus gesehen wahlweise vorne oder hinten liegt, daß heißt, entweder zur Bedienseite oder zur Antriebsseite der Druckmaschine hin zeigt.The possibility of arranging at least the device 3 for the cutting register control in the printing press so high that the paper web 8 is guided downwards from the device 3, and the two longitudinal folding devices 9 and 11 in relation to the exemplary embodiment described above or to be arranged in a position rotated by 180 ° compared to its variant. In this way it can also be achieved that the second longitudinal fold is attached in such a way that the folded edge 42, as seen by the viewer, is optionally at the front or rear, that is to say either points to the operating side or to the drive side of the printing press.

Wie aus den Figuren 4 und 5 weiter ersichtlich ist, ist die Trichtereinlaufwalze 39 entgegen der bisher geübten Praxis nicht auf derselben Seite der Papierbahn 8 wie der Falztrichter 40 angeordnet. Auf diese Weise wird der vor dem Falztrichter 40 zu erzeugende Bahnzug mit einer einzigen Walze erzeugt. Dadurch wird neben einer kurzen Bauweise auch erreicht, daß die Papierbahn 8 nur geringfügig und nur einmal abgelenkt wird.As can further be seen from FIGS. 4 and 5, the former feed roller 39 is not arranged on the same side of the paper web 8 as the folding former 40, contrary to the practice previously practiced. In this way, the web tension to be produced in front of the former 40 is produced with a single roller. In addition to a short construction, this also means that the paper web 8 is deflected only slightly and only once.

Nach Durchlaufen der zweiten Längsfalzvorrichtung 11 wird die Papierbahn 8 durch die Zugvorrichtung 12 und die Abschlagvorrichtung 13 geführt und dann zur Wechselkassettenvorrichtung 14 weitertransportiert. Die Wechselkassettenvorrichtung 14 ist so ausgelegt, daß sie nach dem Prinzip der Einschubtechnik ausgebildete unterschiedliche Werkzeugkassetten aufnehmen kann, um so die Produktionsvielfalt der Druckmaschine zu erhöhen. Als Beispiel für zwei derartige Einschübe bzw. Wechselkassetten seien hier eine Stanzvorrichtung und eine Perforiervorrichtung genannt.After passing through the second longitudinal folding device 11, the paper web 8 is guided through the pulling device 12 and the knock-off device 13 and then transported on to the exchangeable cassette device 14. The exchangeable cassette device 14 is designed in such a way that it can accommodate different tool cassettes designed according to the principle of insertion technology, so as to increase the production variety of the printing press. A punching device and a perforating device may be mentioned here as an example of two such inserts or exchangeable cassettes.

Figur 6 zeigt in stark schematisierter Draufsicht die wesentlichen Elemente der verstellbaren Bandauslage 17. Zweck der Verstellbarkeit der Bandauslage 17 ist es, die von der Querschneidevorrichtung 16 zugeführten Druckprodukte unabhängig vom erzeugten Format sicher und über die ganze Breite gleichmäßig führen zu können. Die Bandauslage 17 weist dazu ein Paar nicht verstellbare Transportbänder 43 und drei Paar verstellbare Transportbänder 44, 45 und 46 auf. Jedes dieser Paare besteht aus einem oberen Band und einem unteren Band. In Figur 6 sind der besseren Übersicht halber nur die oberen Bänder der Transportbandpaare 43 bis 46 dargestellt. Weiterhin weist die Bandauslage 17 jeweils wenigstens zwei Bandrollen 47 und 48 für den Antrieb und die Führung der oberen und der unteren Bänder sowie ein nicht verstellbares Produkt-Seitenführungselement 49 und ein verstellbares Produkt-Seitenführungselement 50 auf. Ferner weist die Bandauslage 17 als für die Verstellung erforderliche Mittel eine mit einem Gewinde oder einem Schneckengang versehene Spindel 51 mit einem Handrad 52 und die Spindel 51 aufnehmende, mit einem passenden Innengewinde bzw. inneren Schneckengang versehene Bandführungsrollen 53 auf. Ein Verdrehen des Handrads 52 und damit der Spindel 51 bewirkt eine Verschiebung der Bandführungsrollen 53 entlang der Achse der Spindel 51 sowie eine entsprechende Verschiebung des Produkt-Seitenführungselements 50. Die Verstellung der Transportbänder 44 bis 46 erfolgt derart, daß die Druckprodukte je nach Breite von insgesamt zwei, drei oder vier Paar Transportbändern geführt werden. Der Antrieb der Transportbandpaare 43 bis 46 erfolgt in an sich bekannter Weise mittels eines vom Hauptantrieb der Druckmaschine abgeleiteten Antriebsstrangs.FIG. 6 shows the essential elements of the adjustable belt delivery 17 in a highly schematic plan view. The purpose of the adjustability of the belt delivery 17 is to be able to guide the printed products fed by the cross-cutting device 16 reliably and uniformly over the entire width, regardless of the generated format. The belt delivery 17 has a pair of non-adjustable Conveyor belts 43 and three pairs of adjustable conveyor belts 44, 45 and 46. Each of these pairs consists of an upper band and a lower band. For the sake of clarity, FIG. 6 shows only the upper belts of the conveyor belt pairs 43 to 46. Furthermore, the belt delivery 17 each has at least two belt rollers 47 and 48 for driving and guiding the upper and lower belts, as well as a non-adjustable product side guide element 49 and an adjustable product side guide element 50. Furthermore, the belt delivery 17 has, as the means required for the adjustment, a spindle 51 provided with a thread or a worm gear with a handwheel 52 and the band guide rollers 53 receiving the spindle 51 and provided with a suitable internal thread or inner worm gear. Rotation of the handwheel 52 and thus the spindle 51 causes a displacement of the belt guide rollers 53 along the axis of the spindle 51 and a corresponding displacement of the product side guide element 50. The adjustment of the conveyor belts 44 to 46 takes place in such a way that the printed products, depending on the width, total two, three or four pairs of conveyor belts. The conveyor belt pairs 43 to 46 are driven in a manner known per se by means of a drive train derived from the main drive of the printing press.

Die der Bandauslage 17 nachgeordnete Stabilisatorvorrichtung 18 weist im Bereich der Bogenübergabe von der Bandauslage 17 an die Bogenauslage 19 auf einer angetriebenen Welle wenigstens eine Nocke 181 auf, die mit der Geschwindigkeit der Bandauslage 17 angetrieben wird. Zweck dieser Vorrichtung ist es, insbesondere bei leichteren Papieren und bei höheren Geschwindigkeiten sicherzustellen, daß sich jedes Druckprodukt schnell und sicher und damit gleichmäßig auf das jeweils vorangegangene Druckprodukt schiebt und so der für eine ordentliche Weiterverarbeitung der Druckprodukte erforderliche gleichmäßige Schuppenstrom entsteht.The stabilizer device 18 arranged downstream of the belt delivery 17 has in the region of the sheet transfer from the belt delivery 17 to the sheet delivery 19 on a driven shaft at least one cam 181 which is driven at the speed of the belt delivery 17. The purpose of this device is to ensure, in particular with lighter papers and at higher speeds, that each printed product pushes quickly and safely and thus evenly onto the previous printed product, thus creating the uniform stream of flakes required for proper further processing of the printed products.

Die Bogenauslage 19 weist ein nicht verstellbares und drei verstellbare Transportbandpaare 54 bis 57 auf, die über jeweils wenigstens zwei Bandrollen 61 und 62 laufen, und gleicht in ihrem Aufbau im wesentlichen dem Aufbau der Bandauslage 17. Gleiches gilt auch für die Verstellung der Transportbänder, für die Bandführungsrollen 58 vorgesehen sind. Deshalb wird auf eine gesonderte Beschreibung der Bogenauslage 19 verzichtet. Zu bemerken ist lediglich, daß die Transportbandpaare 54 bis 57 der Bogenauslage 19 mittels eines tachogeregelten Elektromotors angetrieben werden und daß die Bandgeschwindigkeit der Bogenauslage 19 eine andere ist als die der Bandauslage 17. Außerdem ist die Bandgeschwindigkeit bei der Bogenauslage 19 in der Weise veränderbar, daß eine Erhöhung der Geschwindigkeit eine Vergrößerung des Schuppenabstands und eine Verringerung dieser Geschwindigkeit eine Verkleinerung des Schuppenabstands bewirkt. Zusätzlich sorgt eine elektronische Regelung dafür, daß der Schuppenabstand bei einer Änderung der Geschwindigkeit der Papierbahn 8 immer der gleiche bleibt.The sheet delivery 19 has a non-adjustable and three adjustable conveyor belt pairs 54 to 57, each of which runs over at least two belt rollers 61 and 62, and its structure is essentially the same as the structure of the belt delivery 17. The same also applies to the adjustment of the conveyor belts for the tape guide rollers 58 are provided. Therefore, a separate description of the sheet delivery 19 is omitted. It should only be noted that the conveyor belt pairs 54 to 57 of the sheet delivery 19 are driven by a tachometer-controlled electric motor and that the belt speed of the sheet delivery 19 is different from that of the belt delivery 17. In addition, the belt speed of the sheet delivery 19 is variable in such a way that an increase in speed causes an increase in scale spacing and a decrease in this speed causes a reduction in scale spacing. In addition, an electronic control ensures that the scale distance always remains the same when the speed of the paper web 8 changes.

Zur weiteren Verbesserung der mit einer Druckmaschine gemäß der vorliegenden Anmeldung erzielbaren Ergebnisse kann vor die erste Längsfalzeinrichtung 9 eine Perforiereinrichtung gesetzt werden, die eine Perforation entlang der Mittellinie der Papierbahn 9 erzeugt. Eine solche Maßnahme erleichtert das Falzen insbesondere bei mehrlagigen Papierbahnen aus dickerem oder schwererem Papier und schafft für die beim Falzen aus den Zwischenräumen zwischen den einzelnen Papierlagen herauszupressende restliche Luft einen bevorzugten Weg.To further improve the results that can be achieved with a printing press according to the present application, a perforating device can be placed in front of the first longitudinal folding device 9, which perforation creates a perforation along the center line of the paper web 9. Such a measure facilitates folding, in particular in the case of multilayer paper webs made of thicker or heavier paper, and creates a preferred route for the remaining air to be pressed out of the spaces between the individual paper layers during folding.

Claims (7)

  1. Rotary printing machine, in particular for book printing and calendar printing, having two longitudinal folding devices (9, 11) arranged behind one another and rotated by 90° with respect to one another for folding a printed web (8) with a first (22) and a second (40) folder former as well as a former roller outlet pair (10, 101, 102) arranged after the first folder former (22) as well as a former inlet roller (39) associated with the second folder former (40), characterized in that the former roller outlet pair (10, 101, 102) and the former inlet roller (39) of the two longitudinal folding devices (9, 11) are arranged directly behind one another.
  2. Rotary printing machine according to claim 1, characterized in that the first longitudinal folding device (9) is fitted in a height-adjustable manner.
  3. Rotary printing machine according to one of claims 1 to 2, characterized in that the second longitudinal folding device (11) is arranged in such a way that a print carrier web (8) exiting from it is supplied to a subsequently arranged unit (12) without twisting and without lateral displacement, and in that the second longitudinal folding device (11) is not adjustable.
  4. Rotary printing machine according to one of claims 1 to 3, characterized in that the first longitudinal folding device (9) is mounted by means of connection elements (25) on a plurality of spindle bearings (26, 27) fitted in a height-adjustable manner, one spindle bearing being height-adjustable by means of a threaded spindle (28) which can be driven by a motor drive (29), while the other spindle bearings (26, 27) are carried on racks (30, 31) by means of spindles (34, 35) provided with a gearing, which spindles are connected by way of sprocket wheels (32, 33) and chains (36) to the motor drive (29), so that the first longitudinal folding device (9), upon a change of the height setting, is displaced parallel to itself.
  5. Rotary printing machine according to one of claims 1 to 4, characterized in that the second longitudinal folding device (11) has a former inlet roller (39) which is not arranged on the same side of the print carrier web (8) as the second folder former (40).
  6. Rotary printing machine according to one of claims 1 to 5, characterized in that for the further conveyance of printed products obtained from the twice-folded print carrier web (8) a belt delivery (17) and a sheet delivery (19) with a respective plurality of conveyor-belt pairs (43 to 46, 54 to 57) are provided, with each conveyor-belt pair (43 to 46, 54 to 57) grasping the printed product to be conveyed at its upper side and its lower side simultaneously, and in that between the belt delivery (17) and the sheet delivery (19) a stabilizer device (18) with a cam (181) is provided, the cam pushing the printed products coming from the belt delivery (17) on to the sheet delivery (19).
  7. Rotary printing machine according to one of claims 1 to 6, characterized in that the belt delivery (17) has a pair of conveyor belts (43) which are not adjustable and a plurality of conveyor-belt pairs (44, 45, 46) which are adjustable, with each of these pairs consisting of an upper belt and a lower belt, in that the sheet delivery (19) has a pair of conveyor belts (54) which are not adjustable and a plurality of conveyor-belt pairs (55, 56, 57) which are adjustable, with each of these pairs consisting of an upper belt and a lower belt, and in that the adjustable conveyor-belt pairs (44 to 46, 55 to 57) of the belt delivery (17) and the sheet delivery (19) in each case have sheet guide rollers (53 and 58) which can be displaced together at right angles to the direction of belt travel by means of a spindle (51) provided with a hand wheel (52).
EP91111610A 1990-09-29 1991-07-12 Rotary printing machine for book and calendar printing, with two longitudinal folding devices Expired - Lifetime EP0481172B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4030863A DE4030863A1 (en) 1990-09-29 1990-09-29 ROLL ROTATION PRINTING MACHINE FOR BOOK AND CALENDAR PRINTING
DE4030863 1990-09-29

Publications (2)

Publication Number Publication Date
EP0481172A1 EP0481172A1 (en) 1992-04-22
EP0481172B1 true EP0481172B1 (en) 1995-04-19

Family

ID=6415252

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91111610A Expired - Lifetime EP0481172B1 (en) 1990-09-29 1991-07-12 Rotary printing machine for book and calendar printing, with two longitudinal folding devices

Country Status (4)

Country Link
US (1) US5176371A (en)
EP (1) EP0481172B1 (en)
JP (1) JPH04246538A (en)
DE (2) DE4030863A1 (en)

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US5813337A (en) * 1996-06-05 1998-09-29 Quad/Tech, Inc. Closed-loop printing control system
US5927197A (en) * 1998-07-09 1999-07-27 Troy Systems, Inc. Tensioner and system for continuous printer sheet advancement
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IT1315693B1 (en) 2000-05-12 2003-03-18 Eurotecnica Engineering Srl AUTOMATIC MACHINE PERFECTED FOR CONTINUOUS BINDING OF BOOKS AND BOOKS.
EP1448394A1 (en) * 2001-10-05 2004-08-25 Koenig & Bauer Aktiengesellschaft Folding installation on a rotary roller press and a rotary roller press
DE10164778A1 (en) * 2001-12-21 2003-07-10 Koenig & Bauer Ag Device for the production of folded products
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Also Published As

Publication number Publication date
JPH04246538A (en) 1992-09-02
DE59105250D1 (en) 1995-05-24
EP0481172A1 (en) 1992-04-22
DE4030863A1 (en) 1992-04-09
US5176371A (en) 1993-01-05

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