EP0924069B1 - Sheet guiding device in a printing machine - Google Patents

Sheet guiding device in a printing machine Download PDF

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Publication number
EP0924069B1
EP0924069B1 EP98121740A EP98121740A EP0924069B1 EP 0924069 B1 EP0924069 B1 EP 0924069B1 EP 98121740 A EP98121740 A EP 98121740A EP 98121740 A EP98121740 A EP 98121740A EP 0924069 B1 EP0924069 B1 EP 0924069B1
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EP
European Patent Office
Prior art keywords
sheet guiding
printing
cylinder
guiding device
ball
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
EP98121740A
Other languages
German (de)
French (fr)
Other versions
EP0924069A3 (en
EP0924069A2 (en
Inventor
Marco Bergmann
Edgar Dr. Dörsam
Udo Trillig
Michael Reising
Thomas Walther
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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Filing date
Publication date
Application filed by MAN Roland Druckmaschinen AG filed Critical MAN Roland Druckmaschinen AG
Publication of EP0924069A2 publication Critical patent/EP0924069A2/en
Publication of EP0924069A3 publication Critical patent/EP0924069A3/en
Application granted granted Critical
Publication of EP0924069B1 publication Critical patent/EP0924069B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F25/00—Devices for pressing sheets or webs against cylinders, e.g. for smoothing purposes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F21/00—Devices for conveying sheets through printing apparatus or machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
    • B65H29/52—Stationary guides or smoothers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2406/00—Means using fluid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2406/00—Means using fluid
    • B65H2406/10—Means using fluid made only for exhausting gaseous medium
    • B65H2406/11—Means using fluid made only for exhausting gaseous medium producing fluidised bed
    • B65H2406/113—Details of the part distributing the air cushion
    • B65H2406/1132—Multiple nozzles arrangement
    • B65H2406/11325—Adjustable impact angle

Definitions

  • the invention relates to a sheet guiding device in a printing press according to the preamble of the main claim.
  • blowing device known by MAN Roland Druckmaschinen AG in the Roland 800 series, a rotary printing press based on the five-cylinder principle, from 1978 to 1995 was realized and sold.
  • This blowing device is made up of a plurality of spaced from each other in the cylinder axis length and the curvature of the cylinder surface adapted guide elements, each guide element has a hollow cylindrical cross section as a chamber.
  • Each one Guide element has obliquely arranged in the wall against the pressure cylinder as well as the conveying direction of the printing material directed blow air openings, which prevent the sheet from lifting off the surface of the impression cylinder.
  • the interior of the hollow cylindrical guide element represents the blown air chamber which is coupled with a pneumatic system for the blown air supply is.
  • the wall of the guide elements with blown air openings represents as Outer contour is a guide surface that the outer surface of the printing cylinder is adjusted. Furthermore, additional blown air openings are arranged that are transverse considered to the direction of movement in the edge area of the guide elements are directed inside and out.
  • the invention has for its object a sheet guiding device in a To create printing machine that avoids the disadvantages mentioned, in particular a more even guidance of the printing material on a sheet guiding cylinder, especially the printing cylinder, allowed and an improved Guaranteed entry of the substrate into a printing nip.
  • the sheet-guiding device In order to prevent the sheet-like printing material from lifting off from the outer surface of the sheet guide cylinder, the sheet-guiding device according to the invention, which can be acted upon pneumatically, assumes that - depending on at least the machine speed and / or the weight per unit area - directed blowing air flows in the area of the printing nip act on the printing material tops.
  • a sheet guiding device is arranged in the conveying direction of the printing material in front of the printing nip formed from the blanket / form cylinder and sheet guiding cylinder, for example the printing cylinder, in which the kinetic energy of the blown air flow is converted into printing energy acting on the printing material.
  • the sheet guide device has a guide surface on the underside with openings for the blowing air outlet.
  • the direction of the blowing air flow emerging from the openings can be adjusted in the direction of the conveying direction of the printing stock in order to prevent the sheet-like printing stock from lifting off from the outer surface of the sheet guiding cylinder. This makes it possible to noticeably reduce the drag flow of the conveyed printing material and to prevent the printing material from being lifted off the sheet guiding cylinder by a suction effect which arises.
  • a major advantage of the invention is that the openings in the guide surface of the sheet guiding device adjustable and thus for Directing the blown air flow can be used. Blown air flows are preferred in the guide surface at an angle and against the direction of movement of the The substrate can be adjusted in a directional manner, as are the blown air flows adjustable at right angles to the outer surface of the sheet guiding cylinder. Furthermore is also a combination of approximately rectangular and oblique against the conveying direction of the printing material directed blowing air flows can be realized.
  • the sheet guiding device is arranged in front of the printing nip in such a way that between the guide surface (underside of the sheet guiding device) and an inlet gap is formed on the lateral surface of the sheet guiding cylinder is a tapered course in the conveying direction towards the pressure gap having.
  • the combination of directed pressure energy and tapered inlet gap in front of the printing nip enables by the movement and speed of the substrate caused drag flow on the top of the substrate just as noticeably reduced, so that a lifting of the printing material, especially the rear edge, prevented by a suction effect becomes.
  • a further sheet guiding device in addition to the upstream in the direction of the pressure gap arranged sheet guiding device a further sheet guiding device arranged after the printing nip.
  • This sheet guiding device is preferred can be pneumatically acted upon and serves to guide the printing material at Leaving the pressure gap.
  • an outlet gap formed from the printing nip in the conveying direction of the substrate has a widening gap.
  • a sheet-fed rotary printing press is shown in a row construction in accordance with FIG. 1.
  • the last printing unit is a cantilever 2, which the printing material by means of sprocket shaft 5 and circulating chain systems 6 in the conveying direction 8 on sheet guiding devices 7 transported along and placed on a boom stack.
  • Each Printing unit 1 consists in a known manner of a printing cylinder 10, a Blanket cylinder 11 and a plate cylinder 24.
  • the plate cylinder 24 is assigned an inking unit and possibly a dampening unit, which are not dealt with here shall be.
  • a coating unit is comparable to a printing unit 1.
  • the Blanket cylinder 11 of the printing unit then, as is known, corresponds to the forme cylinder of the coating unit, that with an application roller and a coating system is in functional connection.
  • the printing cylinder 10 also takes over in the coating unit the function of the sheet guiding cylinder 10.
  • Blanket / form cylinder 11 and impression cylinder 10 form a printing gap 12, transported by the sheet-like printing material in the on position and is printed or varnished.
  • the printing material lying on the outer surface of the printing cylinder 10 pass the pressure gap 12 contactlessly to the blanket / form cylinder 11.
  • a sheet guiding device is in the conveying direction 8 in the first embodiment in front of the printing nip 12 9 arranged.
  • the sheet guiding device 9 preferably has has an approximately wedge-shaped cross-section and is with a pneumatic system 21 coupled for the blown air supply.
  • the sheet guiding device 9 protrudes into the gusset-shaped space of the printing gap 12, formed by a rubber blanket / forme cylinder 11 and pressure cylinder 10, and is with a chamber 13 formed as a flow channel which is enclosed by a housing 17.
  • the Chamber 13 serves to receive air, which is provided by the pneumatic system 21 for the Blown air supply is supplied.
  • a guide surface 19 on the underside of the Housing 17 has a plurality of ball joints 14.
  • the bottom of the Housing 17 is the outer surface of the sheet-guiding printing cylinder 10 as Guide surface 19 adjacent.
  • a ball joint 14 is through a ball nozzle 15 with a through opening 16 and the housing 17 are formed.
  • Form ball nozzle 15 and housing 17 a pair of shapes, which technically corresponds to a ball socket joint.
  • the opening 16 is always functionally connected to the chamber 13, i.e. the Opening 16 is directed into chamber 13 at one end. The other end is directed to the outer surface of the printing cylinder 10.
  • each ball nozzle 15 is individual with the direction of the assigned one Opening 16 adjustable by inserting a tool into opening 16 and the direction of flow of the blowing air emerging from the opening 16 to the outer surface of the pressure cylinder 10 by adjusting the ball nozzle 15 is definable.
  • the shape pairing of ball nozzle 15 and housing 17th self-locking.
  • the adjustment of the ball nozzles 15 corresponding to an adjustment takes place in such a way that the openings 16 as blown air openings in the housing 17 at right angles and / or obliquely against the conveying direction 8 on the printing material are directed with their blown air flow to lift the printing material with activated pneumatic system 21 from the outer surface of the pressure cylinder 10 to prevent.
  • a combination of ball nozzles 15 with openings 16, which are directed approximately at right angles to the sheet-guiding printing cylinder 10, with further ball nozzles 15 with openings 16, which are directed obliquely against the conveying direction 8, for a smooth placement of the printing material on the outer surface of the printing cylinder 10 advantageous.
  • the openings 16 directed obliquely against the conveying direction 8 can in turn be set at different angles of inclination.
  • the blowing air flow directions of the ball nozzles 15 with openings 16 in the guide surface 19 - seen transversely to the conveying direction 8 - in the edge regions of the guide surface 19 against the conveying direction 8 and inwards are adjustable in order to prevent possible lateral escape of the blowing air .
  • the sheet guiding device 9 is - via the Length of the sheet guide cylinder (impression cylinder 10) seen - at least in a portion of the outer surface of the printing cylinder 10 is arranged. This is the sheet guiding device 9 over the length of the sheet guiding cylinder 10 seen, adjustable on a frame-fixed crossbeam, with several Adjacent sheet guiding elements 9 on the crossbar and are fixable. In a preferred embodiment, the sheet guiding device extends 9 at least over the minimum format width.
  • Another training is characterized in that the ball nozzles 15 with Openings 16 individually or in groups in their flow direction (for the Blown air flow) by means of at least one functionally connected Actuator 18 are adjustable.
  • an actuating device articulated on the frame side 18 is, for example, a pneumatically activatable working cylinder or a servomotor can be used.
  • the actuating device 18, preferably as a working cylinder, is about a frame-fixed swivel 20 and a temporary Link 26 (angle lever with three swivel elements) and one gearbox Coupling 22 connected as a technical gear, which the ball nozzles 15 connect individually or in groups.
  • the actuator 18 is preferably provided with a control device, e.g. one Control center of the printing press, connected by circuitry. So that's one Activation of the actuator 18 depending on various factors realizable. So is preferred considering the basis weight the printing substrate (including the printing subject for multiple printing / varnish) and / or the machine speed, the actuator 18 can be activated in order to Ball nozzles 15 with openings 16 to adjust in their flow direction. For example is at a machine speed of less than 10,000 sheets per Hour the flow direction of the ball nozzles 15 with opening 16 approximately adjusted at right angles to the outer surface of the printing cylinder 10 (Fig. 3). At machine speeds the flow direction is over 10,000 sheets per hour the ball nozzles 15 with opening 16 obliquely and counter to the conveying direction 8 adjusted (Fig.
  • the adjustment of the ball nozzles 15 with an opening 16 can be carried out depending on the speed. In a further training, this can also depend on a characteristic curve which is in the Control center is given. Alternatively, the operator has the option from the control center the direction of the ball nozzles 15 with openings 16 via the Actuator 18 to regulate.
  • the speed values are included Can be stored in the control center and, if necessary, e.g. with a new print job, available.
  • the pneumatic system 21 can be frequency controlled in a further embodiment. This allows the volume flow and thus that on the substrate Control the effective pressure energy and also store it in the control center.
  • the sheet guiding device 9 seen over the length of the sheet-guiding printing cylinder 10 Cover partial area of the outer surface of the printing cylinder 10.
  • the sheet guiding device 9 adjustable over the length of the printing cylinder 10 seen stored, with several sheet guiding devices 9 on a frame Traverse can be attached.
  • Between the guide surface 19 of the Chamber 13 and the outer surface of the printing cylinder 10 is a to the pressure gap 12 arranged in the conveying direction 8 tapering inlet gap 23.
  • a further sheet guide device 9 in the conveying direction 8 after Printing gap 12 is a mirror image of the sheet guiding device arranged in front of the printing gap 12 9 arranged, between the guide surface 19 and the The outer surface of the pressure cylinder 10 is formed with an outlet gap 25 which is in the conveying direction 8 is arranged to widen from the pressure gap 12.
  • the ball nozzles 15 with Openings 16 are directed counter to the conveying direction 8 onto the printing material and adjustable by means of an actuating device 18.
  • In preferred Training is in turn dependent on the associated actuator 18 controllable by basis weight and machine speed.
  • the sheet guiding device 9 is constantly in the pressure on position and in the pressure down position enableable.
  • the sheet guiding devices 9 have openings 27 in their chamber 13, which in the printing nip 12 or against the blanket / form cylinder 11 with their blowing air flow can be arranged in a directed manner.

Abstract

The system comprises a printing-block and guide cylinders with a gap between through which is supplied air pressing the sheets against their surface. A housing (17) containing an air chamber (13) has in its guiding surface (19) a large number of nozzles (15) forming ball-joints with it. Each nozzle has an opening at one end connected to the chamber, while discharging an air jet from the other so as to prevent the sheets from lifting off the guide cylinder (10). The guide surface forms with the guide cylinder an inlet gap (23) tapering in the travel direction (8) towards the gap (12) between the cylinders and in which printing takes place.

Description

Die Erfindung betrifft eine Bogenführungseinrichtung in einer Druckmaschine nach dem Oberbegriff des Hauptanspruches.The invention relates to a sheet guiding device in a printing press according to the preamble of the main claim.

Es ist eine in Förderrichtung des Bedruckstoffes vor dem Druckspalt von Gummituchzylinder und Druckzylinder angeordnete Blasvorrichtung bekannt, die von der MAN Roland Druckmaschinen AG in der Baureihe Roland 800, einer Rotationsdruckmaschine nach dem Fünf-Zylinder-Prinzip, in den Jahren 1978 bis 1995 realisiert und verkauft wurde. Diese Blasvorrichtung ist aus einer Mehrzahl von zueinander in Zylinderachslänge beabstandeten und der Krümmung der Zylindermantelfläche angepaßten Führungselementen gebildet, wobei jedes Führungselement eine hohlzylindrischen Querschnitt als Kammer aufweist. Ein jedes Führungselement besitzt in der Wandung schräg angeordnete, gegen den Druckzylinder sowie die Förderrichtung des Bedruckstoffes gerichtete Blasluftöffnungen, welche ein Abheben des Bogen von der Druckzylindermantelfläche vermeiden. Das Innere des hohlzylindrischen Führungselementes stellt die Blasluftkammer dar, die mit einem Pneumatiksystem für die Blasluftversorgung gekoppelt ist. Die Blasluftöffnungen aufweisende Wandung der Führungselemente stellt als Außenkontur eine Führungsfläche dar, die der Mantelfläche des Druckzylinders angepaßt ist. Weiterhin sind zusätzliche Blasluftöffnungen angeordnet, die quer zur Bewegungsrichtung betrachtet, im Randbereich der Führungselemente nach innen und nach außen gerichtet sind.It is one in the conveying direction of the substrate in front of the printing nip of the blanket cylinder and pressure cylinder arranged blowing device known by MAN Roland Druckmaschinen AG in the Roland 800 series, a rotary printing press based on the five-cylinder principle, from 1978 to 1995 was realized and sold. This blowing device is made up of a plurality of spaced from each other in the cylinder axis length and the curvature of the cylinder surface adapted guide elements, each guide element has a hollow cylindrical cross section as a chamber. Each one Guide element has obliquely arranged in the wall against the pressure cylinder as well as the conveying direction of the printing material directed blow air openings, which prevent the sheet from lifting off the surface of the impression cylinder. The interior of the hollow cylindrical guide element represents the blown air chamber which is coupled with a pneumatic system for the blown air supply is. The wall of the guide elements with blown air openings represents as Outer contour is a guide surface that the outer surface of the printing cylinder is adjusted. Furthermore, additional blown air openings are arranged that are transverse considered to the direction of movement in the edge area of the guide elements are directed inside and out.

Um ein Glattstreichen von Bogen zu erzielen, wird gemäß einer weiteren bekannten Ausführung nach DE 39 20 730 C 2 eine Blasdüse benutzt, die einen Luftstrahl auf den Bedruckstoff richtet und hierdurch einen Streicheffekt erzielt. Die Blasdüse ist vor dem Druckspalt um eine parallel zur Achse des Druckzylinders liegenden Pendelachse pendelbar gelagert und ist mit einem Antrieb kuppelbar, welcher im Arbeitstakt der Druckmaschine die Blasdüse schwingend in Förderrichtung des Bedruckstoffes vor- und zurückbewegt. Infolge der Schwingbewegung ist ein Entspannen und gleichmäßiges Auflegen des Bedruckstoffes auf den Bogenführungszylinder, insbesondere bei dünnen Bedruckstoffen (mit geringem Flächengewicht), mit Sicherheit nicht gewährleistet.In order to smooth out sheets, according to another known method Version according to DE 39 20 730 C 2 uses a blowing nozzle that emits an air jet is directed towards the substrate and thereby achieves a spreading effect. The Blower nozzle is in front of the printing nip parallel to the axis of the printing cylinder horizontal pendulum axis is pivotally mounted and can be coupled with a drive, which, in the work cycle of the printing press, the blowing nozzle swings in the conveying direction of the substrate back and forth. As a result of the swinging motion is to relax and evenly place the printing material on the Sheet guiding cylinder, especially with thin substrates (with low Basis weight), certainly not guaranteed.

Der Erfindung liegt die Aufgabe zugrunde, eine Bogenführungseinrichtung in einer Druckmaschine zu schaffen, die die genannten Nachteile vermeidet, die insbesondere eine gleichmäßigere Führung des Bedruckstoffes auf einem Bogenführungszylinder, insbesondere dem Druckzylinder, gestattet und einen verbesserten Einlauf des Bedruckstoffes in einen Druckspalt gewährleistet.The invention has for its object a sheet guiding device in a To create printing machine that avoids the disadvantages mentioned, in particular a more even guidance of the printing material on a sheet guiding cylinder, especially the printing cylinder, allowed and an improved Guaranteed entry of the substrate into a printing nip.

Die Aufgabe wird durch die Ausbildungsmerkmale des Hauptanspruches gelöst. Weiterbildungen ergeben sich aus den Unteransprüchen.The task is solved by the training features of the main claim. Further training results from the subclaims.

Um ein Abheben des bogenförmigen Bedruckstoffes von der Mantelfläche des Bogenführungszylinders zu verhindern, geht die pneumatisch beaufschlagbare erfindungsgemäße Bogenführungseinrichtung davon aus, daß - abhängig von zumindest der Maschinengeschwindigkeit undloder des Flächengewichtes - im Bereich des Druckspaltes gerichtete Blasluftströmungen auf die Bedruckstoffoberseiten wirken.
So ist erfindungsgemäß in Förderrichtung des Bedruckstoffes vor dem aus Gummituch-/Formzylinder und Bogenführungszylinder, z.B. dem Druckzylinder, gebildeten Druckspalt eine Bogenführungseinrichtung angeordnet, bei der die kinetische Energie der Blasluftströmung in auf den Bedruckstoff wirkende Drukkenergie umgewandelt ist. Dabei weist die Bogenführungseinrichtung an der Unterseite eine Führungsfläche mit Öffnungen für den Blasluftaustritt auf. Zur Förderrichtung des Bedruckstoffes ist die aus den Öffnungen austretende Blasluftströmung in ihrer Richtung verstellbar, um ein Abheben des bogenförmigen Bedruckstoffes von der Mantelfläche des Bogenführungszylinders zu verhindern. Hierdurch ist es möglich, die Schleppströmung des geförderten Bedruckstoffes spürbar zu reduzieren und ein Abheben des Bedruckstoffes vom Bogenführungszylinder durch eine entstehende Saugwirkung zu verhindern.In order to prevent the sheet-like printing material from lifting off from the outer surface of the sheet guide cylinder, the sheet-guiding device according to the invention, which can be acted upon pneumatically, assumes that - depending on at least the machine speed and / or the weight per unit area - directed blowing air flows in the area of the printing nip act on the printing material tops.
Thus, according to the invention, a sheet guiding device is arranged in the conveying direction of the printing material in front of the printing nip formed from the blanket / form cylinder and sheet guiding cylinder, for example the printing cylinder, in which the kinetic energy of the blown air flow is converted into printing energy acting on the printing material. The sheet guide device has a guide surface on the underside with openings for the blowing air outlet. The direction of the blowing air flow emerging from the openings can be adjusted in the direction of the conveying direction of the printing stock in order to prevent the sheet-like printing stock from lifting off from the outer surface of the sheet guiding cylinder. This makes it possible to noticeably reduce the drag flow of the conveyed printing material and to prevent the printing material from being lifted off the sheet guiding cylinder by a suction effect which arises.

Weiterhin ist es möglich, den zu fördernden bogenförmigen Bedruckstoff bis unmittelbar vor den Druckspalt zu führen, so daß ein Abheben des Bedruckstoffes vom Bogenführungszylinder ebenfalls spürbar verhindert wird. Eine Berührung der Oberfläche des Bedruckstoffes mit dem Gummituch-/Formzylinder ist ausgeschlossen, so daß beispielsweise eine Beschädigung des Druckbildes auf den Bedruckstoff vermieden wird.It is also possible to directly feed the sheet-like printing material to be conveyed in front of the printing nip so that the printing material can be lifted off is also noticeably prevented by the sheet guide cylinder. A touch the surface of the substrate with the blanket / form cylinder is excluded, so that, for example, damage to the printed image on the Substrate is avoided.

Ein wesentlicher Vorteil der Erfindung ist darin begründet, daß die Öffnungen in der Führungsfläche der Bogenführungseinrichtung verstellbar und somit zum Richten der Blasluftströmung nutzbar sind. So sind bevorzugt die Blasluftströmungen in der Führungsfläche schräg und gegen die Bewegungsrichtung des Bedruckstoffes gerichtet verstellbar, ebenso sind die Blasluftströmungen nahezu rechtwinkelig zur Mantelfläche des Bogenführungszylinders verstellbar. Darüberhinaus ist auch eine Kombination von annähernd rechtwinkelig und schräg gegen die Förderrichtung des Bedruckstoffes gerichteten Blasluftströmungen realisierbar.A major advantage of the invention is that the openings in the guide surface of the sheet guiding device adjustable and thus for Directing the blown air flow can be used. Blown air flows are preferred in the guide surface at an angle and against the direction of movement of the The substrate can be adjusted in a directional manner, as are the blown air flows adjustable at right angles to the outer surface of the sheet guiding cylinder. Furthermore is also a combination of approximately rectangular and oblique against the conveying direction of the printing material directed blowing air flows can be realized.

Gleichzeitig ist die Bogenführungseinrichtung vor dem Druckspalt derart angeordnet, daß zwischen der Führungsfläche (Unterseite der Bogenführungseinrichtung) und der Mantelfläche des Bogenführungszylinders ein Einlaufspalt gebildet ist, der in Förderrichtung zum Druckspalt hin einen sich verjüngenden Verlauf aufweist. Die Kombination von gerichteter Druckenergie und verjüngtem Einlaufspalt vor dem Druckspalt ermöglicht die durch die Bewegung und Geschwindigkeit des Bedruckstoffes hervorgerufene Schleppströmung auf der Bedruckstoffoberseite ebenso spürbar zu reduzieren, so daß ein Abheben des Bedruckstoffes, insbesondere der Hinterkante, durch eine entstehende Saugwirkung verhindert wird.At the same time, the sheet guiding device is arranged in front of the printing nip in such a way that between the guide surface (underside of the sheet guiding device) and an inlet gap is formed on the lateral surface of the sheet guiding cylinder is a tapered course in the conveying direction towards the pressure gap having. The combination of directed pressure energy and tapered inlet gap in front of the printing nip enables by the movement and speed of the substrate caused drag flow on the top of the substrate just as noticeably reduced, so that a lifting of the printing material, especially the rear edge, prevented by a suction effect becomes.

In einer weiteren Ausbildung ist neben der in Förderrichtung vor dem Druckspalt angeordneten Bogenführungseinrichtung eine weitere Bogenführungseinrichtung nach dem Druckspalt angeordnet. Diese Bogenführungseinrichtung ist bevorzugt pneumatisch beaufschlagbar und dient der Führung des Bedruckstoffes beim Verlassen des Druckspaltes. Zwischen der Führungsfläche der Bogenführungseinrichtung und der Mantelfläche des Bogenführungszylinders ist ein Auslaufspalt gebildet, der ausgehend vom Druckspalt in Förderrichtung des Bedruckstoffes einen sich erweiternden Spalt aufweist.In a further training, in addition to the upstream in the direction of the pressure gap arranged sheet guiding device a further sheet guiding device arranged after the printing nip. This sheet guiding device is preferred can be pneumatically acted upon and serves to guide the printing material at Leaving the pressure gap. Between the guide surface of the sheet guiding device and the outer surface of the sheet guide cylinder is an outlet gap formed from the printing nip in the conveying direction of the substrate has a widening gap.

Die Erfindung soll an einem Ausführungsbeispiel näher erläutert werden. Dabei zeigen schematisch:

Fig. 1
eine Bogenrotationsdruckmaschine
Fig. 2
eine Anordnung von Bogenführungseinrichtungen im Bereich des Druckspaltes
Fig. 3
eine Bogenführungseinrichtung vor dem Druckspalt
Fig. 4
eine Detaildarstellung eines Kugelgelenkes
The invention will be explained in more detail using an exemplary embodiment. The following schematically show:
Fig. 1
a sheet-fed rotary printing press
Fig. 2
an arrangement of sheet guiding devices in the area of the printing nip
Fig. 3
a sheet guiding device in front of the printing nip
Fig. 4
a detailed representation of a ball joint

Eine Bogenrotationsdruckmaschine ist gemäß Fig. 1 in Reihenbauweise dargestellt. Dabei sind mehrere Druckwerke 1 mit Bogenführungszylindern, hier mit Druckzylindern 10, aneinandergereiht und untereinander mittels Transfertrommeln 4 bzw. Wendesystemen 3 verbunden. Transfertrommeln 4 und Wendesysteme 3 weisen zugeordnete Bogenleiteinrichtungen 7 auf. Dem letzten Druckwerk ist ein Ausleger 2 nachgeordnet, welcher den Bedruckstoff mittels Kettenradwelle 5 und umlaufenden Kettensystemen 6 in Förderrichtung 8 an Bogenleiteinrichtungen 7 entlang transportiert und auf einen Auslegerstapel ablegt. Jedes Druckwerk 1 besteht in bekannter Weise aus einem Druckzylinder 10, einem Gummituchzylinder 11 und einem Plattenzylinder 24. Den Plattenzylinder 24 ist ein Farbwerk und ggf. ein Feuchtwerk zugeordnet, auf das hier nicht weiter eingegangen werden soll.A sheet-fed rotary printing press is shown in a row construction in accordance with FIG. 1. There are several printing units 1 with sheet guiding cylinders, here with Printing cylinders 10, lined up and one below the other by means of transfer drums 4 or turning systems 3 connected. Transfer drums 4 and turning systems 3 have associated sheet guiding devices 7. The last printing unit is a cantilever 2, which the printing material by means of sprocket shaft 5 and circulating chain systems 6 in the conveying direction 8 on sheet guiding devices 7 transported along and placed on a boom stack. Each Printing unit 1 consists in a known manner of a printing cylinder 10, a Blanket cylinder 11 and a plate cylinder 24. The plate cylinder 24 is assigned an inking unit and possibly a dampening unit, which are not dealt with here shall be.

Bei Bogenrotationsdruckmaschinen in Reihenbauweise sind für die Inline-Veredelung bekanntlich auch ein oder mehrere Lackwerke den Druckwerken 1 zuordbar. Ein Lackwerk ist dabei mit einem Druckwerk 1 vergleichbar. Der Gummituchzylinder 11 des Druckwerkes entspricht dann bekanntlich dem Formzylinder des Lackwerkes, der mit einer Auftragwalze sowie einem Lackdosiersystem in Funktionsverbindung ist. Der Druckzylinder 10 übernimmt auch im Lackwerk die Funktion des Bogenführungszylinders 10.In sheet-fed rotary printing presses in series are for inline finishing as is well known, one or more coating units the printing units 1 assignable. A coating unit is comparable to a printing unit 1. The Blanket cylinder 11 of the printing unit then, as is known, corresponds to the forme cylinder of the coating unit, that with an application roller and a coating system is in functional connection. The printing cylinder 10 also takes over in the coating unit the function of the sheet guiding cylinder 10.

Gummituch-/Formzylinder 11 sowie Druckzylinder 10 bilden einen Druckspalt 12, durch den in Druck an-Stellung der bogenförmige Bedruckstoff transportiert und bedruckt wird bzw. lackiert wird. Alternativ kann in Druck ab-Stellung, z.B. bei Kontrolle des Papierlaufes oder falls ein Druckwerk bzw. Lackwerk nicht benötigt wird, der auf der Mantelfläche des Druckzylinders 10 aufliegende Bedruckstoff kontaktlos zum Gummituch-/Formzylinder 11 den Druckspalt 12 passieren.Blanket / form cylinder 11 and impression cylinder 10 form a printing gap 12, transported by the sheet-like printing material in the on position and is printed or varnished. Alternatively, in the print down position, e.g. at Check the paper flow or if a printing unit or coating unit is not required is, the printing material lying on the outer surface of the printing cylinder 10 pass the pressure gap 12 contactlessly to the blanket / form cylinder 11.

Dazu ist in Förderrichtung 8 in erster Ausbildung vor dem Druckspalt 12 eine Bogenführungseinrichtung 9 angeordnet. Die Bogenführungseinrichtung 9 weist bevorzugt einen annähernd keilförmigen Querschnitt auf und ist mit einem Pneumatiksystem 21 für die Blasluftversorgung gekoppelt. Die Bogenführungseinrichtung 9 ragt in den zwickelförmigen Raum des Druckspaltes 12, gebildet durch Gummituch/Formzylinder 11 und Druckzylinder 10, hinein und ist mit einer Kammer 13 als Strömungskanal ausgebildet, die von einem Gehäuse 17 umschlossen ist. Die Kammer 13 dient der Aufnahme von Luft, welche vom Pneumatiksystem 21 für die Blasluftversorgung zugeführt wird. Eine Führungsfläche 19 an der Unterseite des Gehäuses 17 weist eine Vielzahl von Kugelgelenken 14 auf. Die Unterseite des Gehäuses 17 ist der Mantelfläche des bogenführenden Druckzylinders 10 als Führungsfläche 19 benachbart.For this purpose, a sheet guiding device is in the conveying direction 8 in the first embodiment in front of the printing nip 12 9 arranged. The sheet guiding device 9 preferably has has an approximately wedge-shaped cross-section and is with a pneumatic system 21 coupled for the blown air supply. The sheet guiding device 9 protrudes into the gusset-shaped space of the printing gap 12, formed by a rubber blanket / forme cylinder 11 and pressure cylinder 10, and is with a chamber 13 formed as a flow channel which is enclosed by a housing 17. The Chamber 13 serves to receive air, which is provided by the pneumatic system 21 for the Blown air supply is supplied. A guide surface 19 on the underside of the Housing 17 has a plurality of ball joints 14. The bottom of the Housing 17 is the outer surface of the sheet-guiding printing cylinder 10 as Guide surface 19 adjacent.

Ein Kugelgelenk 14 ist durch eine Kugeldüse 15 mit einer durchgehenden Öffnung 16 sowie dem Gehäuse 17 gebildet. Kugeldüse 15 und Gehäuse 17 bilden eine Formpaarung, was getriebetechnisch einem Kugelschalengelenk entspricht. Dabei ist die Öffnung 16 stets mit der Kammer 13 in Funktionsverbindung, d.h. die Öffnung 16 ist mit einem Ende in die Kammer 13 gerichtet. Das andere Ende ist auf die Mantelfläche des Druckzylinders 10 gerichtet.A ball joint 14 is through a ball nozzle 15 with a through opening 16 and the housing 17 are formed. Form ball nozzle 15 and housing 17 a pair of shapes, which technically corresponds to a ball socket joint. The opening 16 is always functionally connected to the chamber 13, i.e. the Opening 16 is directed into chamber 13 at one end. The other end is directed to the outer surface of the printing cylinder 10.

In erster Ausbildung ist jede Kugeldüse 15 individuell mit der Richtung der zugeordneten Öffnung 16 verstellbar, indem ein Werkzeug in die Öffnung 16 eingesetzt wird und die Strömungsrichtung der aus der Öffnung 16 austretenden Blasluft zur Mantelfläche des Druckzylinders 10 durch Verstellen der Kugeldüse 15 festlegbar ist. Dabei ist die Formpaarung von Kugeldüse 15 und Gehäuse 17 selbsthemmend. Die einer Justage entsprechende Verstellung der Kugeldüsen 15 erfolgt dabei derart, daß die Öffnungen 16 als Blasluftöffnungen in dem Gehäuse 17 rechtwinkelig und/oder schräg gegen die Förderrichtung 8 auf den Bedruckstoff mit ihrer Blasluftströmung gerichtet sind, um ein Abheben des Bedruckstoffes bei aktiviertem Pneumatiksystem 21 von der Mantelfläche des Druckzylinder 10 zu verhindern.In the first embodiment, each ball nozzle 15 is individual with the direction of the assigned one Opening 16 adjustable by inserting a tool into opening 16 and the direction of flow of the blowing air emerging from the opening 16 to the outer surface of the pressure cylinder 10 by adjusting the ball nozzle 15 is definable. Here, the shape pairing of ball nozzle 15 and housing 17th self-locking. The adjustment of the ball nozzles 15 corresponding to an adjustment takes place in such a way that the openings 16 as blown air openings in the housing 17 at right angles and / or obliquely against the conveying direction 8 on the printing material are directed with their blown air flow to lift the printing material with activated pneumatic system 21 from the outer surface of the pressure cylinder 10 to prevent.

Beispielsweise ist eine Kombination von Kugeldüsen 15 mit Öffnungen 16, welche annähernd rechtwinkelig zum bogenführenden Druckzylinder 10 gerichtet sind, mit weiteren Kugeldüsen 15 mit Öffnungen 16, welche schräg gegen die Förderrichtung 8 gerichtet sind, für ein glattes Auflegen des Bedruckstoffes auf der Mantelfläche des Druckzylinders 10 vorteilhaft.
Die schräg gegen die Förderrichtung 8 gerichtete Öffnungen 16 sind wiederum in unterschiedlichen Neigungswinkeln einstellbar. Weiterhin ist es vorteilhaft, daß die Blasluftströmungsrichtungen der Kugeldüsen 15 mit Öffnungen 16 in der Führungsfläche 19 - quer zur Förderrichtung 8 gesehen - in den Randbereichen der Führungsfläche 19 gegen die Förderrichtung 8 und nach innen einstellbar sind, um ein mögliches seitliches Entweichen der Blasluft zu verhindern.For example, a combination of ball nozzles 15 with openings 16, which are directed approximately at right angles to the sheet-guiding printing cylinder 10, with further ball nozzles 15 with openings 16, which are directed obliquely against the conveying direction 8, for a smooth placement of the printing material on the outer surface of the printing cylinder 10 advantageous.
The openings 16 directed obliquely against the conveying direction 8 can in turn be set at different angles of inclination. Furthermore, it is advantageous that the blowing air flow directions of the ball nozzles 15 with openings 16 in the guide surface 19 - seen transversely to the conveying direction 8 - in the edge regions of the guide surface 19 against the conveying direction 8 and inwards are adjustable in order to prevent possible lateral escape of the blowing air .

In einer Ausbildung der Erfindung ist die Bogenführungseinrichtung 9 - über die Länge des Bogenführungszylinders (Druckzylinder 10) gesehen - wenigstens in einem Teilbereich der Mantelfläche des Druckzylinders 10 angeordnet. Hierzu ist die Bogenführungseinrichtung 9, über die Länge des Bogenführungszylinders 10 gesehen, an einer gestellfesten Traverse verstellbar gelagert, wobei auch mehrere benachbarte Bogenführungselemente 9 an der Traverse verschiebbar und fixierbar sind. In einer bevorzugten Ausbildung erstreckt sich die Bogenführungseinrichtung 9 wenigstens über die minimale Formatbreite.In one embodiment of the invention, the sheet guiding device 9 is - via the Length of the sheet guide cylinder (impression cylinder 10) seen - at least in a portion of the outer surface of the printing cylinder 10 is arranged. This is the sheet guiding device 9 over the length of the sheet guiding cylinder 10 seen, adjustable on a frame-fixed crossbeam, with several Adjacent sheet guiding elements 9 on the crossbar and are fixable. In a preferred embodiment, the sheet guiding device extends 9 at least over the minimum format width.

Eine weitere Ausbildung ist dadurch gekennzeichnet, daß die Kugeldüsen 15 mit Öffnungen 16 einzeln oder gruppenweise in ihrer Strömungsrichtung (für die Blasluftströmung) mittels wenigstens einer in Funktionsverbindung stehender Betätigungseinrichtung 18 verstellbar sind. Als gestellseitig angelenkte Betätigungseinrichtung 18 ist beispielsweise ein pneumatisch aktivierbarer Arbeitszylinder oder ein Stellmotor einsetzbar. Die Betätigungseinrichtung 18, bevorzugt als Arbeitszylinder, ist über ein gestellfestes Drehgelenk 20 sowie ein temäres Glied 26 (Winkelhebel mit drei Drehgelenkelementen) und einer getriebetechnischen Kopplung 22 als getriebetechnische Mittel verbunden, welche die Kugeldüsen 15 einzeln oder gruppenweise verbinden.Another training is characterized in that the ball nozzles 15 with Openings 16 individually or in groups in their flow direction (for the Blown air flow) by means of at least one functionally connected Actuator 18 are adjustable. As an actuating device articulated on the frame side 18 is, for example, a pneumatically activatable working cylinder or a servomotor can be used. The actuating device 18, preferably as a working cylinder, is about a frame-fixed swivel 20 and a temporary Link 26 (angle lever with three swivel elements) and one gearbox Coupling 22 connected as a technical gear, which the ball nozzles 15 connect individually or in groups.

Die Betätigungseinrichtung 18 ist bevorzugt mit einer Steuereinrichtung, z.B. einem Leitstand der Druckmaschine, schaltungstechnisch verbunden. Damit ist eine Aktivierung der Betätigungseinrichtung 18 in Abhängigkeit verschiedener Faktoren realisierbar. So ist bevorzugt unter Berücksichtigung des Flächengewichtes des Bedruckstoffes (einschl. des Drucksujets bei Mehrfachdruck/Lack) und/oder der Maschinengeschwindigkeit die Betätigungseinrichtung 18 aktivierbar, um die Kugeldüsen 15 mit Öffnungen 16 in ihrer Strömungsrichtung zu verstellen. Beispielsweise ist bei einer Maschinengeschwindigkeit von unter 10.000 Bogen pro Stunde die Strömungsrichtung der Kugeldüsen 15 mit Öffnung 16 annähernd rechtwinkelig zur Mantelfläche des Druckzylinders 10 verstellt (Fig. 3). Bei Maschinengeschwindigkeiten von über 10.000 Bogen pro Stunde ist die Strömungsrichtung der Kugeldüsen 15 mit Öffnung 16 schräg und entgegen der Förderrichtung 8 verstellt (Fig. 2). Somit ist die Verstellung der Kugeldüsen 15 mit Öffnung 16 geschwindigkeitsabhängig durchführbar. Dies kann in einer Weiterbildung auch abhängig von einer Kennlinie, welche im Leitstand vorgegeben ist, erfolgen. Alternativ hat der Bediener auch die Möglichkeit vom Leitstand aus die Richtung der Kugeldüsen 15 mit Öffnungen 16 über die Betätigungseinrichtung 18 zu regulieren. Die Geschwindigkeitswerte sind dabei im Leitstand speicherbar und bei Bedarf, z.B. bei einem erneuten Druckauftrag, abrufbar. Das Pneumatiksystem 21 ist in einer weiteren Ausführung frequenzsteuerbar. Damit läßt sich der Volumenstrom und damit die auf den Bedruckstoff wirkende Druckenergie steuern und ebenso im Leitstand abrufbar speichern.The actuator 18 is preferably provided with a control device, e.g. one Control center of the printing press, connected by circuitry. So that's one Activation of the actuator 18 depending on various factors realizable. So is preferred considering the basis weight the printing substrate (including the printing subject for multiple printing / varnish) and / or the machine speed, the actuator 18 can be activated in order to Ball nozzles 15 with openings 16 to adjust in their flow direction. For example is at a machine speed of less than 10,000 sheets per Hour the flow direction of the ball nozzles 15 with opening 16 approximately adjusted at right angles to the outer surface of the printing cylinder 10 (Fig. 3). At machine speeds the flow direction is over 10,000 sheets per hour the ball nozzles 15 with opening 16 obliquely and counter to the conveying direction 8 adjusted (Fig. 2). Thus, the adjustment of the ball nozzles 15 with an opening 16 can be carried out depending on the speed. In a further training, this can also depend on a characteristic curve which is in the Control center is given. Alternatively, the operator has the option from the control center the direction of the ball nozzles 15 with openings 16 via the Actuator 18 to regulate. The speed values are included Can be stored in the control center and, if necessary, e.g. with a new print job, available. The pneumatic system 21 can be frequency controlled in a further embodiment. This allows the volume flow and thus that on the substrate Control the effective pressure energy and also store it in the control center.

In einer vorteilhaften Ausgestaltung der Erfindung kann die Bogenführungseinrichtung 9 über die Länge des bogenführenden Druckzylinders 10 gesehen einen Teilbereich der Mantelfläche des Druckzylinders 10 bedecken. Hierzu ist die Bogenführungseinrichtung 9 über die Länge des Druckzylinders 10 gesehen verstellbar gelagert, wobei mehrere Bogenführungseinrichtungen 9 auf einer gestellfesten Traverse befestigt sein können. Zwischen der Führungsfläche 19 der Kammer 13 und der Mantelfläche des Druckzylinders 10 ist ein sich zum Druckspalt 12 in Förderrichtung 8 verjüngender Einlaufspalt 23 angeordnet. Zusätzlich ist eine weitere Bogenführungseinrichtung 9 in Förderrichtung 8 nach dem Druckspalt 12 spiegelbildlich zur vor dem Druckspalt 12 angeordneten Bogenführungseinrichtung 9 angeordnet, wobei zwischen Führungsfläche 19 und der Mantelfläche des Druckzylinders 10 ein Auslaufspalt 25 gebildet ist, der in Förderrichtung 8 vom Druckspalt 12 sich erweiternd angeordnet ist. Bei der spiegelbildlich angeordneten Bogenführungseinrichtung 9 sind die Kugeldüsen 15 mit Öffnungen 16 wiederum entgegen der Förderrichtung 8 auf den Bedruckstoff gerichtet und mittels einer Betätigungseinrichtung 18 verstellbar. In bevorzugter Ausbildung ist die zugeordnete Betätigungseinrichtung 18 wiederum abhängig vom Flächengewicht und der Maschinengeschwindigkeit steuerbar. Die Bogenführungseinrichtung 9 ist in Druck an-Stellung sowie in Druck ab-Stellung ständig aktivierbar. Die Bogenführungseinrichtungen 9 weisen in ihrer Kammer 13 Öffnungen 27, welche in den Druckspalt 12 bzw. gegen den Gummituch-/Formzylinder 11 mit ihrer Blasluftströmung gerichtet anordbar sind. In an advantageous embodiment of the invention, the sheet guiding device 9 seen over the length of the sheet-guiding printing cylinder 10 Cover partial area of the outer surface of the printing cylinder 10. For this purpose, the sheet guiding device 9 adjustable over the length of the printing cylinder 10 seen stored, with several sheet guiding devices 9 on a frame Traverse can be attached. Between the guide surface 19 of the Chamber 13 and the outer surface of the printing cylinder 10 is a to the pressure gap 12 arranged in the conveying direction 8 tapering inlet gap 23. In addition is a further sheet guide device 9 in the conveying direction 8 after Printing gap 12 is a mirror image of the sheet guiding device arranged in front of the printing gap 12 9 arranged, between the guide surface 19 and the The outer surface of the pressure cylinder 10 is formed with an outlet gap 25 which is in the conveying direction 8 is arranged to widen from the pressure gap 12. At the mirror image arranged sheet guiding device 9, the ball nozzles 15 with Openings 16, in turn, are directed counter to the conveying direction 8 onto the printing material and adjustable by means of an actuating device 18. In preferred Training is in turn dependent on the associated actuator 18 controllable by basis weight and machine speed. The sheet guiding device 9 is constantly in the pressure on position and in the pressure down position enableable. The sheet guiding devices 9 have openings 27 in their chamber 13, which in the printing nip 12 or against the blanket / form cylinder 11 with their blowing air flow can be arranged in a directed manner.

BezugszeichenaufstellungList of reference symbols

11
DruckwerkPrinting unit
22nd
Auslegerboom
33rd
WendesystemTurning system
44th
TransfertrommelTransfer drum
55
KettenradwelleSprocket shaft
66
KettensystemChain system
77
BogenleiteinrichtungSheet guiding device
88th
FörderrichtungDirection of conveyance
99
BogenführungseinrichtungSheet guiding device
1010th
DruckzylinderImpression cylinder
1111
Gummituch-/FormzylinderBlanket / form cylinder
1212th
DruckspaltPressure gap
1313
Kammerchamber
1414
KugelgelenkBall joint
1515
KugeldüseBall nozzle
1616
Öffnungopening
1717th
Gehäusecasing
1818th
BetätigungseinrichtungActuator
1919th
FührungsflächeLeadership area
2020th
DrehgelenkSwivel
2121
PneumatiksystemPneumatic system
2222
Kopplungcoupling
2323
EinlaufspaltInlet gap
2424th
PlattenzylinderPlate cylinder
2525th
AuslaufspaltOutlet gap
2626
ternäres Gliedternary link
2727
Öffnungopening

Claims (6)

  1. Sheet guiding device in a printing press which is arranged in the spandrelshaped space of a printing slot formed by forme cylinder and sheet guiding cylinder axially parallel to a sheet guiding cylinder as well as being linked with a pneumatic system with a chamber for air supply, wherein the chamber has a guide surface neighbouring the cover surface of the sheet guiding cylinder and openings for application of the material to be printed on to the respective cover surface by means of blown air, characterised in that the chamber (13) has a housing (17) and in the housing (17) in the region of the guide surface (19) are arranged a plurality of adjustable ball nozzles (15) which, in each case, form with the housing (17) a ball joint (14),
    that each ball nozzle (15) has an opening (16) which on one end is functionally connected with the chamber (13) and with the other end forms the outlet opening for the blown air, in order to prevent a lifting off of the material to be printed from the sheet guiding cylinder (10), and
    that the guide surface (19) forms with the sheet guiding cylinder (10) a run-in slot (23) which is arranged narrowing in the feed direction (8) towards the printing slot (12).
  2. Sheet guiding device according to Claim 1, characterised in that the ball nozzles (15) with openings (16) are adjustable individually or in groups by means of an actuation device (18) fast with respect to the frame by means of mechanical means (20, 22, 26).
  3. Sheet guiding device according to Claim 1 and 2, characterised in that the actuation unit (18) is linked via a ternary member (26), a rotary pivot (22) fixed with respect to the frame as well as a mechanical coupling (20) with one or several ball nozzles (15).
  4. Sheet guiding device according to Claim 1 and 2, characterised in that the actuation unit (18) is connected in control technical fashion with a press control.
  5. Sheet guiding device according to Claim 4, characterised in that the actuation unit (18) is controllable dependent on the press speed and/or the surface weight of the material to be printed from the press control.
  6. Sheet guiding device according to Claim 1, characterised in that the ball nozzles (15) with openings (16) are adjustable directed on to the material to be printed perpendicularly and/or obliquely counter to the feed direction (8).
EP98121740A 1997-11-29 1998-11-16 Sheet guiding device in a printing machine Expired - Lifetime EP0924069B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29721185U DE29721185U1 (en) 1997-11-29 1997-11-29 Sheet guiding device in a printing press
DE29721185U 1997-11-29

Publications (3)

Publication Number Publication Date
EP0924069A2 EP0924069A2 (en) 1999-06-23
EP0924069A3 EP0924069A3 (en) 1999-06-30
EP0924069B1 true EP0924069B1 (en) 2001-12-19

Family

ID=8049311

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98121740A Expired - Lifetime EP0924069B1 (en) 1997-11-29 1998-11-16 Sheet guiding device in a printing machine

Country Status (3)

Country Link
EP (1) EP0924069B1 (en)
AT (1) ATE211064T1 (en)
DE (2) DE29721185U1 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19812711C2 (en) * 1998-03-24 2000-04-27 Roland Man Druckmasch Pollination device in a printing press
DE19940534B4 (en) * 1998-10-14 2009-09-03 Heidelberger Druckmaschinen Ag Printing machine with a finger guard
DE19854053C2 (en) * 1998-11-24 2002-11-21 Roland Man Druckmasch Sheet guiding device for a printing machine
DE19905095C2 (en) * 1999-02-09 2001-02-22 Roland Man Druckmasch Sheet guiding device for a printing machine
DE10040519A1 (en) 1999-09-20 2001-03-22 Heidelberger Druckmasch Ag Sheet guide device for card sheet printing press, with second cylinder in form of ink application or tool cylinder
DE10005391A1 (en) * 2000-02-07 2001-08-09 Roland Man Druckmasch Method and device for sheet guiding in a rotary printing press
ES2267477T3 (en) * 2000-02-08 2007-03-16 Mitsubishi Heavy Industries, Ltd. LEAF GUIDE UNIT FOR PRESS FEEDED BY LEAVES.
DE50115825D1 (en) * 2000-10-26 2011-05-05 Koenig & Bauer Ag Sheet guiding device in printing machines to support sheet guiding
DE102007042375A1 (en) * 2007-09-06 2009-03-12 Koenig & Bauer Aktiengesellschaft Sheet guiding device, has nozzles for realizing blowing air jet aligned on recesses and guiding sheet during transportation, where flow direction of blowing air jet is adjustably executed with respect to position of side edges of sheet
CN108621547A (en) * 2017-03-21 2018-10-09 南京造币有限公司 A kind of printing paper flattening device

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3920730A1 (en) * 1989-06-24 1991-01-10 Heidelberger Druckmasch Ag DEVICE FOR ARC SMOOTHING ON THE PRINT CYLINDER IN AN ARC ROTATION PRINTING MACHINE
DE19700370B4 (en) * 1997-01-08 2005-01-05 Koenig & Bauer Ag Blowgun in printing presses for cyclical blowing

Also Published As

Publication number Publication date
DE29721185U1 (en) 1998-01-15
DE59802522D1 (en) 2002-01-31
EP0924069A3 (en) 1999-06-30
EP0924069A2 (en) 1999-06-23
ATE211064T1 (en) 2002-01-15

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