EP0683044A2 - Device for preventing damage in a printing machine - Google Patents

Device for preventing damage in a printing machine Download PDF

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Publication number
EP0683044A2
EP0683044A2 EP95107107A EP95107107A EP0683044A2 EP 0683044 A2 EP0683044 A2 EP 0683044A2 EP 95107107 A EP95107107 A EP 95107107A EP 95107107 A EP95107107 A EP 95107107A EP 0683044 A2 EP0683044 A2 EP 0683044A2
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EP
European Patent Office
Prior art keywords
cylinder
arrangement according
energy store
adjusting means
blanket
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP95107107A
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German (de)
French (fr)
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EP0683044A3 (en
EP0683044B1 (en
Inventor
Claus August Bolza-Schünemann
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Koenig and Bauer AG
Original Assignee
Koenig and Bauer Albert AG
Koenig and Bauer AG
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Publication of EP0683044A2 publication Critical patent/EP0683044A2/en
Publication of EP0683044A3 publication Critical patent/EP0683044A3/en
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Publication of EP0683044B1 publication Critical patent/EP0683044B1/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41FPRINTING MACHINES OR PRESSES
    • B41F33/00Indicating, counting, warning, control or safety devices
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41FPRINTING MACHINES OR PRESSES
    • B41F33/00Indicating, counting, warning, control or safety devices
    • B41F33/18Web break detection

Definitions

  • the invention relates to an arrangement for preventing printing unit damage to web-fed rotary printing presses according to the preamble of claim 1.
  • the invention has for its object to provide an arrangement for preventing printing unit damage in the event of a power failure.
  • the invention has the following advantages in particular: As a result of the arrangement of an energy storage device in the event of failure of the electrical supply emits briefly energy to actuate a control unit, which in turn causes at least one blanket cylinder to pivot for each printing unit in operation, winders have become harmless when the paper web is torn.
  • each journal 17 one each blanket cylinder 2 to 5 is mounted in an eccentric sleeve 18 rotatably arranged in the side frame 21, each eccentric sleeve 18 being connected to the end of a piston rod 24 of the working cylinder 16 on a flange 19 which is fixed to the eccentric sleeve by means of a coupling 21 and an angle lever 23 which is fixed to the side frame.
  • the working cylinder 16 is mounted at its end remote from the piston rod.
  • the parts 16 to 24 are present in duplicate and - apart from the side frame 22 - are referred to as adjusting means 26.
  • the double-acting working cylinder 16 of the actuating means 26 is connected at its ends in each case via a line 27, 28, each with a throttle valve with working connections of a 4/3-way valve 29 with magnetic actuation 31, 32, which are not described in more detail.
  • the directional control valve 29 has a blocking position in its central position.
  • a supply and return line 33, 34 of the directional control valve 29 is connected to a known compressed air reservoir 35 with connection 40 to a known generator system.
  • the first magnet actuation 31 of the directional control valve 29 is connected to openers 36, 37 of a first limit switch 38, which is fixed to the side frame in the vicinity of the axle journal 17 of each blanket cylinder 2 to 5 and whose contact actuation lever is in positive connection with an eccentric bushing-fixed cam 58.
  • NO 41, 42 in a second limit switch 43 are also fixed to the side frame in the vicinity of the journal 17, however arranged at another location on the circumference of the eccentric bushing 18.
  • the contact actuation lever of the limit switch 43 is in a non-positive connection with the surface of the cylinder liner 18 or with a cam 59 fixed to the cylinder liner.
  • Both the break contact 36 of the first limit switch 38 and the make contact 41 of the second limit switch 43 are connected to a first connection of an break contact 44 of a relay 46.
  • the parts 29, 31, 32, 38, 43 are designated as control means 47.
  • An opener 37 of the limit switch 38 and a closer 42 of the limit switch 43 are on the one hand due to the operating voltage UB, z. B. 24 volts DC, and are also connected to inputs E1, E2 of a programmable logic controller 45 (PLC). Outputs of the PLC 45 are connected in parallel with the contacts 36, 41 of the two limit switches 38, 43 via a current backflow preventing diode 48, 49 in order to signal a switch position indicator of the limit switches 38, 43 in the event of a restart after a failure of the electrical supply.
  • PLC programmable logic controller 45
  • the control means 47 are connected to an electrical energy store 51, which consists of a capacitor 54 connected to ground 53 UB, which is preceded by a diode 52.
  • a diode 55 is connected upstream of the diode 52 for the purpose of current limitation.
  • a Protective resistor 61 e.g. B. of a kiloohm.
  • the capacitance of the capacitor 54 can be 2 times 10 nanofarads at 40 volts.
  • the resistor 55 connected upstream of the diode 52 can be 1 ohm.
  • the operation of the arrangement is as follows: During the operating state, in addition to the motor drives for the printing machine, not shown, the blanket cylinders 2 to 5 of the satellite printing unit 12 are in operation, so that the blanket cylinders 2 and 3 against each other and the blanket cylinders 4 and 5 against the Work impression cylinder 1.
  • the capacitor 54 which is connected to ground 53, is charged during operation by contact with the operating voltage UB.
  • the relay 46 connected in parallel with the energy store 51 has picked up during operation, so that the break contact 44 is open. Thus, the control means 47 have not responded.
  • the relay 46 drops out, the break contact 44 closes and the energy of the capacitor 54 discharges through the break contact 36 of the first limit switch 38, so that the solenoid actuation 31 of the directional control valve 29 at least receives voltage from the capacitor 54 for a second, so that the piston 57 is connected to the piston rod 24 of the working cylinder 16 from the compressed air reservoir 35 via the directional control valve 29 and the line 27, so that the piston 57 moves from its left end position towards the right end position is, whereby the blanket cylinder 5 is pivoted by an amount d both from the impression cylinder 1 and from the plate cylinder 10.
  • the piston 57 of the working cylinder 16 is in the right end position D and the mark 39 on the eccentric bush 18 is in accordance with that on the Side frame 22 applied mark D. If the operating voltage UB then fails, the break contact 44 of the relay 46 closes, the break contacts 36, 37 of the limit switch 38 are open and the make contacts 41, 42 of the limit switch 43 are closed.
  • the contact actuating lever of the limit switch 43 is in connection with the cam 59 remote from the eccentric bushing when the piston 57 of the working cylinder 16 is actuated from the right working position D to the pressure cut-out C.
  • the limit switch 43 switches from so that the closers 41, 42 open and the print stop C of the blanket cylinder 5 is reached (dashed line in Fig. 2), so that paper winder can be avoided.

Landscapes

  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Rotary Presses (AREA)

Abstract

The damage prevention device uses an energy store which is charged during the operation of the printing machine and which is coupled to a setting device for at least one of the printing cylinders (2,3,4,5) of each printing stage (2,7;3,8;4,9;5,10), upon failure of the printing machine electrical supply, to move it into a neutral position. Pref. the energy store is provided by a capacitor, which is charged from the machine operating voltage via a diode, with a parallel relay for coupling it to the setting device upon failure of the operating voltage.

Description

Die Erfindung betrifft eine Anordnung zum Verhindern von Druckwerksschäden an Rollenrotationsdruckmaschinen entsprechend dem Oberbegriff des Anspruches 1.The invention relates to an arrangement for preventing printing unit damage to web-fed rotary printing presses according to the preamble of claim 1.

Bekannterweise kommt es beim Ausfall der elektrischen Versorgung auch zum Ausfall der elektrisch betriebenen Aggregate, was zu Unregelmäßigkeiten in der mechanischen Spannung der laufenden Papierbahn in Rollenrotationsdruckmaschinen führen kann, so daß ein sog. Bruch der Papierbahn entstehen kann, bevor die Druckmaschine zum Stillstand kommt. Dies kann zu sogenannten Wicklern führen, welche die Druckwerke oder auch die Farbwerke beschädigen können.As is known, if the electrical supply fails, the electrically operated units also fail, which can lead to irregularities in the mechanical tension of the running paper web in web-fed rotary printing presses, so that a so-called breakage of the paper web can occur before the printing press comes to a standstill. This can lead to so-called winders, which can damage the printing units or the inking units.

Der Erfindung liegt die Aufgabe zugrunde, eine Anordnung zum Verhindern von Druckwerksschäden bei Spannungsausfall zu schaffen.The invention has for its object to provide an arrangement for preventing printing unit damage in the event of a power failure.

Erfindungsgemäß wird diese Aufgabe durch die Merkmale des kennzeichnenden Teils des Anspruches 1 gelöst.According to the invention, this object is achieved by the features of the characterizing part of claim 1.

Durch die Erfindung treten insbesondere folgende Vorteile ein:
Infolge der Anordnung eines Energiespeichers, der im Falle des Ausfalls der elektrischen Versorgung kurzzeitig Energie zum Betätigen einer Steuereinheit abgibt, die wiederum ein Verschwenken zumindest eines Gummituchzylinders je in Betrieb befindlicher Druckeinheit bewirkt, sind Wickler beim Reißen der Papierbahn unschädlich geworden.
The invention has the following advantages in particular:
As a result of the arrangement of an energy storage device in the event of failure of the electrical supply emits briefly energy to actuate a control unit, which in turn causes at least one blanket cylinder to pivot for each printing unit in operation, winders have become harmless when the paper web is torn.

Die Erfindung wird nachfolgend an einem Ausführungsbeispiel näher dargestellt. Die zugehörigen Zeichnungen zeigen in

Fig. 1
ein Prinzipschaltbild einer erfindungsgemäßen Anordnung;
Fig. 2
die schematische Darstellung einer Satellitendruckeinheit.
The invention is illustrated in more detail below using an exemplary embodiment. The associated drawings show in
Fig. 1
a schematic diagram of an arrangement according to the invention;
Fig. 2
the schematic representation of a satellite printing unit.

Um einen zentralen Gegendruckzylinder 1 sind kreuzförmig vier aus jeweils einem Gummituchzylinder 2, 3, 4, 5 und einem Plattenzylinder 7, 8, 9, 10 bestehende Druckeinheiten 2, 7; 3, 8; 4, 9; 5, 10 zu einer sogenannten Neunzylinder-Satellitendruckeinheit 12 für eine Rollenrotationsdruckmaschine angeordnet. Die Druckeinheiten 2, 7; 3, 8; 4, 9; 5, 10 sind so umschaltbar, daß eine oder mehrere Papierbahnen 13, 14 die Satellitendruckeinheit 12 zwecks Bedrucken der Papierbahn 13, 14 durchlaufen können (Fig. 2). Dabei können z. B. die Gummizylinder 2 und 3 sowie die Gummizylinder 4 und 5 Kontakt haben oder alle Gummizylinder 2 bis 5 arbeiten z. B. gegen den Gegendruckzylinder 2. Die Plattenzylinder 7 bis 10 sind den Gummituchzylindern 2 bis 5 jeweils separat zugeordnet. Den Plattenzylindern 7 bis 10 jeweils zugeordnete Farbwerke und ggf. auch Feuchtwerke sind nicht dargestellt. Die Gummizylinder 2 können, wie in der DE 41 29 840 A1 gezeigt, jeweils separat mittels doppeltwirkender Arbeitszylinder 16 verschwenkbar im Seitengestell angeordnet sein, wobei die Gummituchzylinder 2 bis 5 jeweils zumindest drei verschiedene Stellungen einnehmen können:

  • a) Gummituchzylinder 2 gegen benachbarten Gummituchzylinder 3, Markierung 39 an einer Exzenterbüchse 18 in "Druckanstellung D",
  • b) Gummituchzylinder 4 gegen benachbarten Gummituchzylinder 5, Markierung 39 der Exzenterbüchse 18 in "Druckanstellung D",
  • c) Gummituchzylinder 2 bis 5 gemeinsam gegen Gegendruckzylinder 1, Markierung 39 der Exzenterbüchse 18 in Druckanstellung B",
  • d) Gummituchzylinder 2 bis 5 in Druckanstellung, d. h. ohne Kontakt zu benachbarten Zylindern, Markierung 39 Exzenterbüchse 18 in "Druckabstellung C".
Around a central impression cylinder 1, four printing units 2, 7; each consisting of a blanket cylinder 2, 3, 4, 5 and a plate cylinder 7, 8, 9, 10; 3, 8; 4, 9; 5, 10 to a so-called nine-cylinder satellite printing unit 12 for a web-fed rotary printing press. The printing units 2, 7; 3, 8; 4, 9; 5, 10 can be switched so that one or more paper webs 13, 14 can pass through the satellite printing unit 12 for printing on the paper web 13, 14 (FIG. 2). Here, for. B. the blanket cylinders 2 and 3 and the blanket cylinders 4 and 5 have contact or all blanket cylinders 2 to 5 work z. B. against Impression cylinder 2. The plate cylinders 7 to 10 are each assigned to the blanket cylinders 2 to 5 separately. The inking units assigned to the plate cylinders 7 to 10 and possibly also dampening units are not shown. As shown in DE 41 29 840 A1, the rubber cylinders 2 can each be separately pivoted in the side frame by means of double-acting working cylinders 16, wherein the rubber blanket cylinders 2 to 5 can each take at least three different positions:
  • a) blanket cylinder 2 against adjacent blanket cylinder 3, marking 39 on an eccentric bush 18 in "printing position D",
  • b) blanket cylinder 4 against adjacent blanket cylinder 5, marking 39 of the eccentric bush 18 in "printing position D",
  • c) blanket cylinders 2 to 5 together against impression cylinder 1, marking 39 of the eccentric bushing 18 in the printing position B ",
  • d) rubber blanket cylinders 2 to 5 in printing position, ie without contact with adjacent cylinders, marking 39 eccentric bushing 18 in "printing position C".

Das Verschwenken der Gummituchzylinder 2 bis 5 geschieht beispielsweise dadurch, daß jeder Achszapfen 17 eines jeden Gummituchzylinder 2 bis 5 jeweils in einer im Seitengestell 21 drehbar angeordneten Exzenterbüchse 18 gelagert ist, wobei jede Exzenterbüchse 18 an einem exzenterbüchsenfesten Flansch 19 mittels einer Koppel 21 sowie einem seitengestellfest gelagertem Winkelhebel 23 mit dem kolbenfernen Ende einer Kolbenstange 24 des Arbeitszylinder 16 verbunden ist. Der Arbeitszylinder 16 ist an seinem kolbenstangenfernen Ende seitengestellfest gelagert. Die Teile 16 bis 24 sind zweifach vorhanden und sind - außer dem Seitengestell 22 - als Stellmittel 26 bezeichnet. Der doppeltwirkende Arbeitszylinder 16 der Stellmittel 26 ist jeweils an seinen Enden über jeweils eine Leitung 27, 28 mit jeweils einem Drosselventil mit nicht näher bezeichneten Arbeitsanschlüssen eines 4/3-Wegeventils 29 mit magnetischer Betätigung 31, 32 verbunden. Das Wegeventil 29 weist in seiner Mittelstellung eine Sperrstellung auf. Eine Zu- und Rückleitung 33, 34 des Wegeventils 29 ist mit einem bekannten Druckluftspeicher 35 mit Anschluß 40 zu einer bekannten Erzeugeranlage verbunden. Die erste Magnetbetätigung 31 des Wegeventils 29 ist mit Öffnern 36, 37 eines ersten Endschalters 38 in Verbindung, welcher seitengestellfest in der Nähe des Achszapfens 17 jedes Gummituchzylinders 2 bis 5 angebracht ist und dessen Kontaktbetätigungshebel mit einem exzenterbüchsenfesten Nocken 58 in kraftschlüssiger Verbindung ist. Schließer 41, 42 in einem zweiten Endschalter 43 sind ebenfalls seitengestellfest in der Nähe des Achszapfens 17, jedoch an einer anderen Stelle des Umfanges der Exzenterbüchse 18 angeordnet. Der Kontaktbetätigungshebel des Endschalters 43 ist je nach Lage der Gummituchzylinder mit der Oberfläche der Zylinderbüchse 18 oder mit einem zylinderbüchsenfesten Nocken 59 in kraftschlüssiger Verbindung. Sowohl der Öffner 36 des ersten Endschalters 38 als auch der Schließer 41 des zweiten Endschalters 43 steht mit einem ersten Anschluß eines Öffners 44 eines Relais 46 in Verbindung. Die Teile 29, 31, 32, 38, 43 sind als Steuermittel 47 bezeichnet.The pivoting of the blanket cylinders 2 to 5 happens, for example, in that each journal 17 one each blanket cylinder 2 to 5 is mounted in an eccentric sleeve 18 rotatably arranged in the side frame 21, each eccentric sleeve 18 being connected to the end of a piston rod 24 of the working cylinder 16 on a flange 19 which is fixed to the eccentric sleeve by means of a coupling 21 and an angle lever 23 which is fixed to the side frame. The working cylinder 16 is mounted at its end remote from the piston rod. The parts 16 to 24 are present in duplicate and - apart from the side frame 22 - are referred to as adjusting means 26. The double-acting working cylinder 16 of the actuating means 26 is connected at its ends in each case via a line 27, 28, each with a throttle valve with working connections of a 4/3-way valve 29 with magnetic actuation 31, 32, which are not described in more detail. The directional control valve 29 has a blocking position in its central position. A supply and return line 33, 34 of the directional control valve 29 is connected to a known compressed air reservoir 35 with connection 40 to a known generator system. The first magnet actuation 31 of the directional control valve 29 is connected to openers 36, 37 of a first limit switch 38, which is fixed to the side frame in the vicinity of the axle journal 17 of each blanket cylinder 2 to 5 and whose contact actuation lever is in positive connection with an eccentric bushing-fixed cam 58. NO 41, 42 in a second limit switch 43 are also fixed to the side frame in the vicinity of the journal 17, however arranged at another location on the circumference of the eccentric bushing 18. Depending on the position of the rubber blanket cylinder, the contact actuation lever of the limit switch 43 is in a non-positive connection with the surface of the cylinder liner 18 or with a cam 59 fixed to the cylinder liner. Both the break contact 36 of the first limit switch 38 and the make contact 41 of the second limit switch 43 are connected to a first connection of an break contact 44 of a relay 46. The parts 29, 31, 32, 38, 43 are designated as control means 47.

Ein Öffner 37 des Endschalters 38 sowie ein Schließer 42 des Endschalters 43 liegen einerseits an der Betriebsspannung UB, z. B. 24 Volt Gleichspannung, an und sind andererseits mit Eingängen E1, E2 einer speicherprogrammierbaren Steuerung 45 (SPS) verbunden. Ausgänge der SPS 45 sind über einen Stromrückfluß verhindernde Dioden 48, 49 parallel zu den Kontakten 36, 41 der beiden Endschalter 38, 43 geschaltet, um eine Schalterstellungsanzeige der Endschalter 38, 43 für den Fall der Wiedereinschaltung nach einem Ausfall der elektrischen Versorgung zu signalisieren.An opener 37 of the limit switch 38 and a closer 42 of the limit switch 43 are on the one hand due to the operating voltage UB, z. B. 24 volts DC, and are also connected to inputs E1, E2 of a programmable logic controller 45 (PLC). Outputs of the PLC 45 are connected in parallel with the contacts 36, 41 of the two limit switches 38, 43 via a current backflow preventing diode 48, 49 in order to signal a switch position indicator of the limit switches 38, 43 in the event of a restart after a failure of the electrical supply.

Die Steuermittel 47 sind mit einem Elektroenergiespeicher 51 verbunden, welcher aus einem an Masse 53 UB - gelegten Kondensator 54 besteht, welchem eine Diode 52 vorgeschaltet ist. Der Diode 52 ist ein Widerstand 55 zwecks Strombegrenzung vorgeschaltet. Parallel zum Kondensator 54 kann ein Schutzwiderstand 61, z. B. von einem Kiloohm, angeordnet sein. Die Kapazität des Kondensators 54 kann 2 mal 10 Nanofarad bei 40 Volt betragen. Der der Diode 52 vorgeschaltete Widerstand 55 kann 1 Ohm betragen. Zwischen der Diode 52 und dem Kondensator 54 befindet sich ein Verteilerpunkt 56. Vom Verteilerpunkt 56 besteht eine Verbindung zum zweiten Anschluß des Öffners 44 des Relais 46, wodurch der Elektroenergiespeicher 51 mit dem Steuermitteln 47 verbindbar ist.The control means 47 are connected to an electrical energy store 51, which consists of a capacitor 54 connected to ground 53 UB, which is preceded by a diode 52. A diode 55 is connected upstream of the diode 52 for the purpose of current limitation. In parallel with the capacitor 54, a Protective resistor 61, e.g. B. of a kiloohm. The capacitance of the capacitor 54 can be 2 times 10 nanofarads at 40 volts. The resistor 55 connected upstream of the diode 52 can be 1 ohm. There is a distribution point 56 between the diode 52 and the capacitor 54. From the distribution point 56 there is a connection to the second connection of the opener 44 of the relay 46, as a result of which the electrical energy store 51 can be connected to the control means 47.

Die Funktionsweise der Anordnung ist wie folgt: Während des Betriebszustandes sind neben den nichtgezeigten Motorantrieben für die Druckmaschine auch die Gummituchzylinder 2 bis 5 der Satellitendruckeinheit 12 in Betrieb, und zwar so, daß die Gummituchzylinder 2 und 3 gegeneinander und die Gummituchzylinder 4 und 5 gegen den Gegendruckzylinder 1 arbeiten. Der gegen Masse 53 liegende Kondensator 54 wird während des Betriebes durch das Anliegen an der Betriebsspannung UB aufgeladen. Das zum Energiespeicher 51 parallel geschaltete Relais 46 hat während des Betriebes angezogen, so daß der Öffner 44 geöffnet ist. Somit haben die Steuermittel 47 nicht angesprochen.The operation of the arrangement is as follows: During the operating state, in addition to the motor drives for the printing machine, not shown, the blanket cylinders 2 to 5 of the satellite printing unit 12 are in operation, so that the blanket cylinders 2 and 3 against each other and the blanket cylinders 4 and 5 against the Work impression cylinder 1. The capacitor 54, which is connected to ground 53, is charged during operation by contact with the operating voltage UB. The relay 46 connected in parallel with the energy store 51 has picked up during operation, so that the break contact 44 is open. Thus, the control means 47 have not responded.

Bei Spannungsausfall, d. h. UB ist gleich Null, fällt das Relais 46 ab, der Öffner 44 schließt sich und die Energie des Kondensators 54 entlädt sich über den Öffner 36 des ersten Endschalters 38, so daß die Magnetbetätigung 31 des Wegeventils 29 zumindest über eine Sekunde lang vom Kondensator 54 Spannung erhält, so daß der Kolben 57 mit der Kolbenstange 24 des Arbeitszylinders 16 vom Druckluftspeicher 35 über das Wegeventil 29 und die Leitung 27 verbunden ist, so daß der Kolben 57 aus seiner linken Endstellung in Richtung rechte Endstellung bewegt wird, wodurch der Gummituchzylinder 5 um einen Betrag d sowohl vom Gegendruckzylinder 1 als auch vom Plattenzylinder 10 weggeschwenkt wird. Dadurch werden mögliche Papierwickler für das aus Gegendruckzylinder 1, Gummituchzylinder 5 sowie Plattenzylinder 10 bestehende Druckwerke unschädlich (siehe gestrichelte Darstellung der Gummituchzylinder 2 bis 5 in Fig. 2). Die Diode 52 verhindert dabei das Entladen des Kondensators 54 in Richtung Plus UB 53. Während der Bewegung des Kolbens 57 des Arbeitszylinders 16 von der linken Endstellung B zur mittleren Stellung C dreht sich gleichzeitig die Exzenterbüchse 18 im Uhrzeigersinn solange, bis der exzenterbüchsenfeste Nocken 58 den Kontaktbetätigungshebel des Endschalters 38 passiert hat und abschaltet, wobei der Öffner 36 öffnet. Dieser Vorgang dauert weniger als eine Sekunde, so daß die auf der Zylinderbüchse 18 befindliche Markierung 39 nunmehr mit einer auf dem Seitengestell 22 angebrachten Markierung C in Übereinstimmung ist. Somit nimmt der Gummituchzylinder 5 eine Druckabstellung ein (in Fig. 2 gestrichelt dargestellt).In the event of a power failure, ie UB is zero, the relay 46 drops out, the break contact 44 closes and the energy of the capacitor 54 discharges through the break contact 36 of the first limit switch 38, so that the solenoid actuation 31 of the directional control valve 29 at least receives voltage from the capacitor 54 for a second, so that the piston 57 is connected to the piston rod 24 of the working cylinder 16 from the compressed air reservoir 35 via the directional control valve 29 and the line 27, so that the piston 57 moves from its left end position towards the right end position is, whereby the blanket cylinder 5 is pivoted by an amount d both from the impression cylinder 1 and from the plate cylinder 10. This makes possible paper winder for the printing unit consisting of impression cylinder 1, blanket cylinder 5 and plate cylinder 10 harmless (see dashed line of blanket cylinders 2 to 5 in Fig. 2). The diode 52 prevents the capacitor 54 from being discharged in the direction of the positive UB 53. During the movement of the piston 57 of the working cylinder 16 from the left end position B to the central position C, the eccentric bush 18 simultaneously rotates clockwise until the cam 58 fixed to the eccentric bushing Contact operating lever of the limit switch 38 has passed and switches off, the opener 36 opens. This process takes less than a second, so that the marking 39 on the cylinder liner 18 is now in line with a marking C made on the side frame 22. Thus, the blanket cylinder 5 assumes a print stop (shown in dashed lines in FIG. 2).

Sollten sich jedoch die Gummituchzylinder 4, 5 während des Betriebes gegenseitig berühren, wie dies bei den Gummituchzylindern 2, 3 in Fig. 2 gezeigt ist, so befindet sich der Kolben 57 des Arbeitszylinders 16 in der rechten Endstellung D und die Markierung 39 auf der Exzenterbüchse 18 befindet sich in Übereinstimmung mit der auf dem Seitengestell 22 aufgebrachten Markierung D. Fällt dann die Betriebsspannung UB aus, so schließt der Öffner 44 des Relais 46, die Öffner 36, 37 des Endschalters 38 sind geöffnet und die Schließer 41, 42 des Endschalters 43 sind geschlossen. Der Kontaktbetätigungshebel des Endschalters 43 ist in Verbindung mit dem exzenterbüchsenfernen Nocken 59 bei Betätigung des Kolbens 57 des Arbeitszylinders 16 aus der rechten Arbeitsstellung D zur Druckabstellung C. Nachdem sich der im Gegenuhrzeigersinn drehende Nocken 59 am Kontaktbetätigungshebel des Endschalters 43 vorbeigefahren ist, schaltet der Endschalter 43 ab, so daß sich die Schließer 41, 42 öffnen und die Druckabstellung C des Gummituchzylinders 5 erreicht ist (gestrichelte Darstellung in Fig. 2), so daß Papierwickler vermieden werden.However, should the blanket cylinders 4, 5 during of operation touch each other, as shown in the blanket cylinders 2, 3 in Fig. 2, the piston 57 of the working cylinder 16 is in the right end position D and the mark 39 on the eccentric bush 18 is in accordance with that on the Side frame 22 applied mark D. If the operating voltage UB then fails, the break contact 44 of the relay 46 closes, the break contacts 36, 37 of the limit switch 38 are open and the make contacts 41, 42 of the limit switch 43 are closed. The contact actuating lever of the limit switch 43 is in connection with the cam 59 remote from the eccentric bushing when the piston 57 of the working cylinder 16 is actuated from the right working position D to the pressure cut-out C. After the counterclockwise rotating cam 59 has passed the contact actuating lever of the limit switch 43, the limit switch 43 switches from so that the closers 41, 42 open and the print stop C of the blanket cylinder 5 is reached (dashed line in Fig. 2), so that paper winder can be avoided.

Es versteht sich von selbst, daß für jeden Gummituchzylinder 2 bis 5 eine separate Anordnung zum Verhindern von Druckwerksschäden erforderlich ist, wobei ja ohnehin schon ein Arbeitszylinder 57 zum Betätigen je Gummituchzylinder 2 bis 5 je Satellitendruckeinheit vorhanden sein muß, desgleichen Endschalter 38, 43. Somit können auch die Gummituchzylinder 2, 3 (Fig. 2) so verschwenkt werden, daß diese weder Kontakt zueinander besitzen, noch mit dem Plattenzylinder 7, 8 in Kontakt sind.It goes without saying that a separate arrangement for preventing printing unit damage is required for each blanket cylinder 2 to 5, whereby a working cylinder 57 for actuation per blanket cylinder 2 to 5 per satellite printing unit must be present anyway, as are limit switches 38, 43. Thus can also the blanket cylinders 2, 3 (Fig. 2) so be pivoted that they are not in contact with each other, nor are they in contact with the plate cylinder 7, 8.

Es ist auch möglich, andere Zylinder als die Gummituchzylinder 2 bis 5 zu verschwenken, z. B. Plattenzylinder, je nach Konfiguration des Druckwerkes. Weiterhin ist es möglich, die Gummituchzylinder 4, 5 in eine weitere dritte Stellung zu verschwenken, die hinter der Druckabstellung 4, 1; 5, 1 liegt, in welcher sich dann die Gummituchzylinder 4, 5 berühren (analog der Zylinder 2, 3 in Fig. 2).It is also possible to pivot cylinders other than the blanket cylinders 2 to 5, for. B. plate cylinder, depending on the configuration of the printing unit. Furthermore, it is possible to pivot the blanket cylinders 4, 5 into a further third position, which is behind the print stop 4, 1; 5, 1 lies in which the blanket cylinders 4, 5 then touch (analogously to the cylinders 2, 3 in FIG. 2).

TeilelisteParts list

11
GegendruckzylinderImpression cylinder
22nd
GummituchzylinderBlanket cylinder
33rd
GummituchzylinderBlanket cylinder
44th
GummituchzylinderBlanket cylinder
55
GummituchzylinderBlanket cylinder
66
--
77
PlattenzylinderPlate cylinder
88th
PlattenzylinderPlate cylinder
99
PlattenzylinderPlate cylinder
1010th
PlattenzylinderPlate cylinder
1111
--
1212th
9 - Zylinder - Satellitendruckeinheit9 - cylinder satellite printing unit
1313
PapierbahnPaper web
1414
PapierbahnPaper web
1515
--
1616
ArbeitszylinderWorking cylinder
1717th
Achszapfen (5)Journal (5)
1818th
Exzenterbüchse (5)Eccentric bushing (5)
1919th
Flansch (18)Flange (18)
2020th
--
2121
KoppelPaddock
2222
SeitengestellSide frame
2323
WinkelhebelAngle lever
2424th
Kolbenstange (16)Piston rod (16)
2525th
--
2626
Stellmittel (16, 17, 18, 19, 23, 24)Adjusting means (16, 17, 18, 19, 23, 24)
2727
Leitung (16)Line (16)
2828
Leitung (16)Line (16)
2929
WegeventilDirectional control valve
3030th
--
3131
Magnetbetätigung (29)Magnetic actuation (29)
3232
Magnetbetätigung (29)Magnetic actuation (29)
3333
Zuleitung (29)Supply (29)
3434
Rückleitung (29)Return line (29)
3535
DruckluftspeicherCompressed air reservoir
3636
Öffner (38)NC (38)
3737
Öffner (38)NC (38)
3838
Endschalter, ersterLimit switch, first
3939
Markierung (18)Marking (18)
4040
Anschluß, ErzeugeranlageConnection, generating plant
4141
Schließer (43)NO (43)
4242
Schließer (43)NO (43)
4343
Endschalter, zweiterLimit switch, second
4444
Öffner (46)NC (46)
4545
SPSPLC
4646
Relaisrelay
4747
Steuermittel (29, 31, 32, 38, 43)Control means (29, 31, 32, 38, 43)
4848
Diode (A1 SPS)Diode (A1 PLC)
4949
Diode (A2 SPS)Diode (A2 PLC)
5050
--
5151
EnergiespeicherEnergy storage
5252
Diodediode
5353
MasseDimensions
5454
Kondensatorcapacitor
5555
Widerstandresistance
5656
VerteilerpunktDistribution point
5757
Kolben (16)Piston (16)
5858
Nocken (18)Cams (18)
5959
Nocken (18)Cams (18)
6060
--
6161
Widerstandresistance
A1A1
Ausgang SPSPLC output
A2A2
Ausgang SPSPLC output
E1E1
Eingang SPSPLC input
E2E2
Eingang SPSPLC input
UBUB
BetriebsspannungOperating voltage
BB
Arbeitsstellung (57, 18)Working position (57, 18)
CC.
Arbeitsstellung (57, 18)Working position (57, 18)
DD
Arbeitsstellung (57, 18)Working position (57, 18)
dd
Betrag Exzentrizität (5)Amount of eccentricity (5)

Claims (9)

Anordnung zum Verhindern von Druckwerksschäden an einer Rollenrotationsdruckmaschine, wobei Gummituchzylinder gegeneinander oder gegen einen Gegendruckzylinder arbeiten und durch steuerbare Stellmittel im Seitengestell schwenkbar angeordnet sind, dadurch gekennzeichnet, daß ein während des Betriebszustandes der Druckmaschine aufladbarer Energiespeicher (51) über das Steuermittel (47) mit dem Stellmittei (26) verbunden ist, daß der Energiespeicher (51) im Falle des Ausfalles der elektrischen Versorgung (UB) seine Energie an das Steuermittel (47) abgibt, wodurch die Stellmittel (26) beaufschlagt werden, zumindest einen Zylinder (2, 3, 4 oder 5) je Druckeinheit (2, 7; 3, 8; 4, 9; 5, 10) in eine Druckabstellung (C) zu bringen.Arrangement for preventing printing unit damage to a web-fed rotary printing press, with blanket cylinders working against one another or against an impression cylinder and being pivotably arranged in the side frame by controllable adjusting means, characterized in that an energy store (51) which can be charged during the operating state of the printing press is connected to the control device (47) by means of the Adjusting means (26) is connected so that the energy store (51) releases its energy to the control means (47) in the event of a failure of the electrical supply (UB), whereby the adjusting means (26) are acted upon, at least one cylinder (2, 3, 4 or 5) for each printing unit (2, 7; 3, 8; 4, 9; 5, 10) in a print setting (C). Anordnung nach Anspruch 1, dadurch gekennzeichnet, daß der Energiespeicher (51) aus einem an einer Betriebsspannung (UB) liegendem Kondensator (54) besteht, welchem eine Diode (52) vorgeschaltet ist.Arrangement according to claim 1, characterized in that the energy store (51) consists of a capacitor (54) connected to an operating voltage (UB), which is preceded by a diode (52). Anordnung nach Anspruch 2, dadurch gekennzeichnet, daß der Diode (52) ein Widerstand (55) vorgeschaltet ist.Arrangement according to claim 2, characterized in that a resistor (55) is connected upstream of the diode (52). Anordnung nach den Ansprüchen 1 bis 3, dadurch gekennzeichnet, daß die Steuermittel (47) aus einem zum Energiespeicher (51) parallel an der Betriebsspannung (UB) befindlichen Relais (46) besteht, dessen Öffner (44) über die Stellung des Zylinders (2 bis 5) signalisierende Endschalter (38; 43) mit einem elektromagnetisch steuerbaren Wegeventil (29) für die Zufuhr eines Fluids für den Arbeitszylinder (16) verbunden ist.Arrangement according to claims 1 to 3, characterized in that the control means (47) from one to Energy store (51) in parallel to the operating voltage (UB) located relay (46), the break (44) of the position of the cylinder (2 to 5) signaling limit switches (38; 43) with an electromagnetically controllable directional valve (29) for the Supply of a fluid for the working cylinder (16) is connected. Anordnung nach den Ansprüchen 1 bis 4, dadurch gekennzeichnet, daß das Wegeventil (29) aus einem 4/3-Wegeventil mit Sperrstellung in der Mittelstellung besteht.Arrangement according to claims 1 to 4, characterized in that the directional valve (29) consists of a 4/3-way valve with a blocking position in the central position. Anordnung nach den Ansprüchen 1 bis 5, dadurch gekennzeichnet, daß das Stellmittel (26) aus einem fluidbeaufschlagbaren, doppelt wirkenden Arbeitszylinder (16) besteht, dessen Kolbenstange (24) über einen Hebelantrieb (23, 21) mit einer den Achszapfen (17) aufnehmenden seitengestellfest gelagerten Exzenterbüchse (18) verbunden ist.Arrangement according to claims 1 to 5, characterized in that the adjusting means (26) consists of a double-acting working cylinder (16) which can be acted on by fluid, the piston rod (24) of which, via a lever drive (23, 21), receives the axle journal (17) eccentric bush (18) mounted on the side frame is connected. Anordnung nach den Ansprüchen 1 bis 6, dadurch gekennzeichnet, daß der Energiespeicher (51), die Steuermittel (47) sowie die Stellmittel (26) untereinander verbunden sind.Arrangement according to claims 1 to 6, characterized in that the energy store (51), the control means (47) and the adjusting means (26) are interconnected. Anordnung nach den Ansprüchen 1 bis 7, dadurch gekennzeichnet, daß die Endschalter (38, 43) mit einer speicherprogrammierbaren Steuerung (45) verbunden sind.Arrangement according to claims 1 to 7, characterized in that the limit switches (38, 43) are connected to a programmable logic controller (45). Anordnung nach den Ansprüchen 1 bis 8, dadurch gekennzeichnet, daß zumindest jedem Gummituchzylinder (2 bis 5) ein Energiespeicher (51), ein Steuermittel (47) sowie ein Stellmittel (26) zugeordnet ist.Arrangement according to claims 1 to 8, characterized in that at least each blanket cylinder (2 to 5) is assigned an energy store (51), a control means (47) and an adjusting means (26).
EP95107107A 1994-05-20 1995-05-11 Device for preventing damage in a printing machine Expired - Lifetime EP0683044B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4417661 1994-05-20
DE4417661A DE4417661C2 (en) 1994-05-20 1994-05-20 Arrangement for preventing printing unit damage in a web-fed rotary printing press

Publications (3)

Publication Number Publication Date
EP0683044A2 true EP0683044A2 (en) 1995-11-22
EP0683044A3 EP0683044A3 (en) 1996-12-18
EP0683044B1 EP0683044B1 (en) 1999-08-04

Family

ID=6518547

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95107107A Expired - Lifetime EP0683044B1 (en) 1994-05-20 1995-05-11 Device for preventing damage in a printing machine

Country Status (4)

Country Link
US (1) US5588364A (en)
EP (1) EP0683044B1 (en)
JP (1) JP2735808B2 (en)
DE (2) DE4417661C2 (en)

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EP1251005A2 (en) * 2001-04-09 2002-10-23 Tokyo Kikai Seisakusho Ltd. Method and apparatus for controlling rotary presses in power failure

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JP2002326342A (en) * 2001-05-02 2002-11-12 Komori Corp Abnormal vibration monitoring apparatus
DE102004004665B4 (en) * 2004-01-30 2005-12-29 Koenig & Bauer Ag Device for adjusting a pressing force exerted by a roller in a roller strip on an adjacent rotary body and for setting the roller against the rotary body or for stopping the roller from the rotary body
US10078294B2 (en) * 2014-06-30 2018-09-18 Hp Indigo B.V. Contact control of print blanket to impression drum

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DE3629719A1 (en) * 1985-09-30 1987-04-02 Polygraph Leipzig Accessory for print conversion
DE4129840A1 (en) * 1991-09-09 1992-04-09 Koenig & Bauer Ag METHOD AND ARRANGEMENT FOR ADJUSTING EXCENTRIC BUSHINGS FOR CYLINDERS OF PRINTING MACHINES

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US4369705A (en) * 1980-09-24 1983-01-25 Harris Corporation Printing press
DE3244045C2 (en) * 1982-11-27 1984-12-20 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Device to prevent printer damage in the event of paper web breaks
DD242027A1 (en) * 1985-10-31 1987-01-14 Polygraph Leipzig ADDITIONAL DEVICE FOR PRESSURE CHANGE
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US5272975A (en) * 1990-04-25 1993-12-28 Man Roland Druckmaschinen Ag Throw-on/throw-off device for a blanket cylinder with a printing speed dependent control system for a sheet-fed offset press
US5337664A (en) * 1993-04-08 1994-08-16 Rockwell International Corporation Printing press with blanket cylinder throw off apparatus and method

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DE1940075A1 (en) * 1968-12-18 1970-07-02 Granger Wallace Herman Rotary printing press
DE3629719A1 (en) * 1985-09-30 1987-04-02 Polygraph Leipzig Accessory for print conversion
DE4129840A1 (en) * 1991-09-09 1992-04-09 Koenig & Bauer Ag METHOD AND ARRANGEMENT FOR ADJUSTING EXCENTRIC BUSHINGS FOR CYLINDERS OF PRINTING MACHINES

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1251005A2 (en) * 2001-04-09 2002-10-23 Tokyo Kikai Seisakusho Ltd. Method and apparatus for controlling rotary presses in power failure
EP1251005A3 (en) * 2001-04-09 2004-03-03 Tokyo Kikai Seisakusho Ltd. Method and apparatus for controlling rotary presses in power failure

Also Published As

Publication number Publication date
EP0683044A3 (en) 1996-12-18
DE4417661C2 (en) 1996-06-05
DE4417661A1 (en) 1995-11-30
US5588364A (en) 1996-12-31
DE59506507D1 (en) 1999-09-09
EP0683044B1 (en) 1999-08-04
JP2735808B2 (en) 1998-04-02
JPH07314651A (en) 1995-12-05

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