EP1579991A1 - Speed depending pressing force - Google Patents

Speed depending pressing force Download PDF

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Publication number
EP1579991A1
EP1579991A1 EP05101803A EP05101803A EP1579991A1 EP 1579991 A1 EP1579991 A1 EP 1579991A1 EP 05101803 A EP05101803 A EP 05101803A EP 05101803 A EP05101803 A EP 05101803A EP 1579991 A1 EP1579991 A1 EP 1579991A1
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EP
European Patent Office
Prior art keywords
spring
control
torsion spring
force
cylinder
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
EP05101803A
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German (de)
French (fr)
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EP1579991B1 (en
Inventor
Christian Görbing
Thomas Schmidt
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Heidelberger Druckmaschinen AG
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Heidelberger Druckmaschinen AG
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Publication of EP1579991A1 publication Critical patent/EP1579991A1/en
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Publication of EP1579991B1 publication Critical patent/EP1579991B1/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41FPRINTING MACHINES OR PRESSES
    • B41F21/00Devices for conveying sheets through printing apparatus or machines
    • B41F21/10Combinations of transfer drums and grippers
    • B41F21/104Gripper details

Definitions

  • DE 199 56 369 A1 shows a gripper of a sheet-processing machine, the of a control roller is controlled, which cooperates with a control cam.
  • the Pressure force of the control roller on the control cam is manually adjustable. This has however As a result, a setting of high contact forces even in small and medium Processing speeds is very high and thus the tax rolls as well as the Control curve subject to increased wear.
  • the invention is therefore an object of the invention to provide a device having a automatic adaptation of the pressure force of the control roller and control cam allows different operating conditions.
  • the biasing force of a To increase pressing force generating spring speed dependent, for example, by a Preload of a torsion spring dependent, for example, by a Preload of a torsion spring.
  • adjusting devices are hydraulic, pneumatic, provided magnetically or electrically controllable adjusting means.
  • Another possibility is the control of an electric pump in dependence from the speed of the sheet processing machine, z. B. by means of the control computer.
  • the adjustment of the pressing force is carried out by a change in the spring rate or spring stiffness of the gripper system.
  • the spring stiffness thereby to increase that the length of the twistable portion of the torsion spring by the positive connection with a displaceable element in dependence on the Machine speed is changed.
  • a printing press has a feeder 2, at least one printing unit 3 or 4 and a boom 6.
  • the bow 7 are from taken from a sheet stack 8 and isolated or scaly over a Feeding 9 fed to the printing units 3 and 4.
  • These contain in a known manner in each case a plate cylinder 11; 12.
  • the plate cylinders 11 and 12 each have one Device 13, 14 for attaching flexible printing plates.
  • everyone is Plate cylinder 11; 12, a device 16; 17 for semi or fully automatic Assigned plate change.
  • the sheet stack 8 rests on a controllably liftable stacking plate 10.
  • the removal the sheet 7 takes place from the top of the sheet stack 8 by means of a so-called Suction head 18, which includes a number of lifting and Schleppsaugern 19, 21 for the separation of the sheet 7 has.
  • the blowing devices 22 are for Loosening of the upper sheet layers and sensing elements 23 for stack tracking intended.
  • a number of lateral and rear stops 24 are provided for aligning the sheet stack 8, in particular the upper sheet 7 of the Sheet stack 8, a number of lateral and rear stops 24 are provided.
  • FIG. 2 shows a so-called gripper bridge, which is pivotable in a cylinder channel 31 the transfer cylinder 27 is mounted.
  • the gripper bridge consists essentially of a gripper tube 32, which has a number of spaced side by side Grippers 33 carries.
  • the gripper tube 32 carries at its first end a control lever 34 for a control roller 36, which under the force of a torsion spring 37 with a stationary arranged control cam 38 is in working contact.
  • the torsion spring 37 is a coaxial surrounded by the gripper tube 32 torsion bar, which on the control roller 36 facing end is firmly connected to the gripper tube 32. With the other end sticking out the torsion spring 37 out of the gripper tube 32 and carries between a bearing 39 for the torsion bar 37 and the gripper tube 32, a gear 41st
  • the gear 41 is in meshing engagement with another gear 42, which on a second, parallel to the first arranged torsion spring 43, in particular Torsion spring bar, is attached.
  • the second torsion spring 43 has a first rotatable Storage 44 and on the opposite side a fixed restraint 46.
  • the torsion spring 43 carries a function of the speed of the arc actuatable machine and correspondingly actuatable actuator 47, the a twist of the two torsion spring rods 37 and 43 causes.
  • the torsion spring bars 37, 43 are installed against each other braced so that the control roller 36 at a standstill Machine is pressed with slight pressure against the control cam 38.
  • the actuator 47 calls a twist of the torsion spring 43 and thus via the gear connection 42, 41 a twist of the torsion spring 37 and higher Pressing force of the control roller 36 on the control cam 38.
  • the actuator 47 operates electrically, magnetically, pneumatically or preferably hydraulically.
  • an externally arranged, electrically drivable hydraulic pump 49 is provided, the speed-dependent from the control computer 51st the sheet processing machine the actuator 47 via z. B. a rotary feedthrough with Pressure applied.
  • the actuator 47 is - as shown in Figure 2a, b - in Essentially from a working cylinder 52, the cylinder body 53 at the storage position the fixed clamping 46 is attached to the cylinder 27.
  • the working cylinder 52 has a in its cylinder body against rotation secured piston 54, which means a bolt 55 engages in a oblique groove 56 of a second cylinder 57.
  • the second Cylinder 57 is connected to the torsion spring rod 43 such that the axis 58 of the Torsion spring 43 with the central axis 58 of the working cylinder 53 is identical.
  • a Actuation of the work space formed between the cylinder body 53 and the piston 54 59 leads to a translational displacement of the piston 54 and a bolt 55th and oblique groove 56 generated twist of the second cylinder 57 and the Torsion spring rod 43.
  • FIG. 2b Another possibility for controlling or pressurizing the actuator 47, in particular of the working cylinder 52, Figure 2b shows.
  • Axial piston pump 63 is driven by the rotation of the cylinder journal 64 (eg. Drive the swash plate) and supplies the working cylinder 52 via a line 66 with a working medium, preferably hydraulic oil.
  • a second line 67 connects one in the cylinder 27 arranged hydraulic oil reservoir 69 with the axial piston pump 63rd
  • the lines 66 and 67 are connected to a line into which a throttle 68 is installed.
  • a third embodiment according to FIG. 3 it is provided that the rigidity of the to make the entire spring system variable, that the twistable length of the Torsion spring rod 43 depending on the speed of the sheet processing Machine is changed. Trained as a square Torsion spring rod 43 is doing with a clearance fit of an axially movable receptacle 71 coaxially.
  • the Receptacle 71 is mounted rotationally fixed and is by means of a threaded bore gear 72, which is driven by a controllable by the machine control 51 motor 73 becomes.
  • a displacement of the receptacle 71 in the direction of the fixed clamping 46 extends the twistable length of the torsion bar 43, whereby the spring stiffness of the entire Gripper system decreases and the pressing force of the control roller 36 on the control cam 38th is reduced.
  • the inclusion in the moves opposite direction whereby the spring stiffness of the gripper system increases and the pressing force of the control roller 36 on the control cam 38 increases.
  • a force transducer z. B. a strain gauge (DMS) 74 to arrange, the is connected to the control computer 51 and determines the pressing force with which the Control roller 36 is pressed against the control cam. Based on given data in form of characteristic curves or formulas, the control computer 51 determines the measured data Control values for the actuator 47.
  • DMS strain gauge

Landscapes

  • Delivering By Means Of Belts And Rollers (AREA)
  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)

Abstract

The spring pressure transmission device transmits the pressure of a control roller (36) to a control cam (38) in a sheet processing machine by means of a portion spring rod (37). Either the effective length of the spring or the rigidity of the spring can be altered, depending on the revs of the machine processing the sheet.

Description

Vorrichtung zur Anpassung der Andrückkraft einer Steuerrolle an eine Steuerkurve in einer Bogen verarbeitenden Maschine.Device for adapting the pressure force of a control roller to a control cam in one Sheet processing machine.

Bei z. B. rollengesteuerten Greifereinrichtungen in Bogenrotationsdruckmaschinen besteht das Problem, dass z. B. die zur Steuerung der Greifer vorgesehenen Steuerrollen gerade bei hohen Verarbeitungsgeschwindigkeiten und damit hohen Drehzahlen sehr großen Kräften ausgesetzt sind, die dazu führen, dass die Steuerrollen von den Steuerkurven abheben. Daraus resultieren eine undefinierte Greiferbewegung und ein erhöhter Verschleiß der Steuerrollen. In der Regel kann diesem Problem dadurch entgegnet werden, dass die Anstellkräfte der Steuerrollen an die Steuerkurven an die höchste Verarbeitungsgeschwindigkeit angepasst sind.At z. B. roll-controlled gripper devices in sheet-fed rotary printing presses the problem that z. B. at the time provided for controlling the gripper control rollers high processing speeds and thus high speeds very large forces which cause the control rollers to lift off the cams. This results in an undefined gripper movement and increased wear of the Tax rolls. In general, this problem can be countered by the fact that the Anstellkräfte of the control rollers to the cams to the highest Processing speed are adjusted.

Die DE 199 56 369 A1 zeigt einen Greifer einer Bogen verarbeitenden Maschine, der von einer Steuerrolle gesteuert wird, die mit einer Steuerkurve zusammenwirkt. Die Andrückkraft der Steuerrolle auf die Steuerkurve ist manuell einstellbar. Dies hat jedoch zur Folge, dass eine Einstellung hoher Anpresskräfte auch bei kleinen und mittleren Verarbeitungsgeschwindigkeiten sehr hoch ist und somit die Steuerrollen wie auch die Steuerkurve einem erhöhten Verschleiß unterliegen.DE 199 56 369 A1 shows a gripper of a sheet-processing machine, the of a control roller is controlled, which cooperates with a control cam. The Pressure force of the control roller on the control cam is manually adjustable. This has however As a result, a setting of high contact forces even in small and medium Processing speeds is very high and thus the tax rolls as well as the Control curve subject to increased wear.

Der Erfindung liegt daher die Aufgabe zugrunde, eine Vorrichtung zu schaffen, die eine automatische Anpassung der Andrückkraft von Steuerrolle und Steuerkurve an unterschiedliche Betriebsbedingungen ermöglicht.The invention is therefore an object of the invention to provide a device having a automatic adaptation of the pressure force of the control roller and control cam allows different operating conditions.

Die Aufgabe wird erfindungsgemäß durch die Merkmale der Ansprüche 1 und 2 gelöst.The object is achieved by the features of claims 1 and 2.

Es ist ein besonderer Vorteil der Erfindung, dass die Standzeiten der an der Greifersteuerung beteiligten Elemente, wie z. B. Steuerrollen und/oder Steuerkurven, erhöht werden. It is a particular advantage of the invention that the service life at the Gripper control involved elements such. B. control rollers and / or cams, increase.

In einer besonders vorteilhaften Ausführung ist es vorgesehen, die Vorspannkraft einer die Andrückkraft erzeugenden Feder drehzahlabhängig zu erhöhen, beispielsweise durch eine Vorspannung einer Torsionsfeder. Als Stelleinrichtungen sind hydraulisch, pneumatisch, magnetisch oder elektrisch ansteuerbare Stellmittel vorgesehen.In a particularly advantageous embodiment, it is provided, the biasing force of a To increase pressing force generating spring speed dependent, for example, by a Preload of a torsion spring. As adjusting devices are hydraulic, pneumatic, provided magnetically or electrically controllable adjusting means.

Weitere vorteilhafte Ausbildungen beziehen sich auf die Ausbildung von drehzahlabhängig arbeitenden Druckerzeugern zur Versorgung der Stellelemente. Hierbei kann z. B. ein Druckerzeuger oder auch eine drehzahlgesteuerte Schrägscheibenpumpe oder ein mit Fliehkraft arbeitender Druckübersetzer vorgesehen sein.Further advantageous embodiments relate to the formation of speed-dependent working pressure generator to supply the control elements. This z. B. a Pressure generator or a speed-controlled swash plate pump or with Centrifugal working pressure booster be provided.

Eine weitere Möglichkeit ist die Ansteuerung einer elektrischen Pumpe in Abhängigkeit von der Drehzahl der Bogen verarbeitenden Maschine, z. B. mittels des Steuerrechners.Another possibility is the control of an electric pump in dependence from the speed of the sheet processing machine, z. B. by means of the control computer.

Bei einer weiteren vorteilhaften Ausbildung erfolgt die Anpassung der Andrückkraft durch eine Veränderung der Federrate bzw. Federsteifigkeit des Greifersystems. Beispielsweise indem bei der Verwendung einer Torsionsfeder vorgesehen ist, die Federsteifigkeit dadurch zu erhöhen, dass die Länge des tordierbaren Anteils der Torsionsfeder durch die formschlüssige Verbindung mit einem verschiebbaren Element in Abhängigkeit von der Maschinendrehzahl verändert wird.In a further advantageous embodiment, the adjustment of the pressing force is carried out by a change in the spring rate or spring stiffness of the gripper system. For example by providing in the use of a torsion spring, the spring stiffness thereby to increase that the length of the twistable portion of the torsion spring by the positive connection with a displaceable element in dependence on the Machine speed is changed.

In vorteilhafter Ausgestaltung ist es vorgesehen, die elastizitätsbehafteten Elemente durch paralleles Aufschalten bauraumsparend anzuordnen.In an advantageous embodiment, it is provided by the elasticity-related elements parallel mounting to arrange space-saving.

Bei einem optimierten Ausführungsbeispiel ist es vorgesehen, die Anpassung der Andrückkraft des Federsystems in Abhängigkeit von der tatsächlichen, z. B. mittels Dehnungsmessstreifen, gemessenen Andrückkraft zwischen Steuerrolle und Steuerkurve zu regeln.In an optimized embodiment, it is provided to adapt the Pressing force of the spring system as a function of the actual, z. B. by means Strain gauge, measured contact force between the control roller and cam regulate.

Ausführungsbeispiele der Erfindung sind in den Zeichnungen dargestellt und werden im Folgenden beschrieben. Embodiments of the invention are illustrated in the drawings and are in Described below.

Es zeigen:

Figur 1
eine Bogen verarbeitende Rotationsdruckmaschine im Schnitt in schematischer Darstellung,
Figur 2
einen Bogen transportierenden Zylinder in der Draufsicht in schematischer, teilweise geschnittener Darstellung,
Figur 2a
ein erstes Ausführungsbeispiel für die Ansteuerung eines hydraulischen Aktuators,
Figur 2b
ein zweites Ausführungsbeispiel für die Ansteuerung des hydraulischen Aktuators,
Figur 3
ein drittes Ausführungsbeispiel für eine Möglichkeit zur Veränderung der Federsteifigkeit des Greifersystems, und
Figur 4
ein viertes Ausführungsbeispiel mit geregelter Andrückkraft.
Show it:
FIG. 1
a sheet-processing rotary printing machine in section in a schematic representation,
FIG. 2
a bow-transporting cylinder in plan view in a schematic, partially sectioned view,
FIG. 2a
a first embodiment for the control of a hydraulic actuator,
FIG. 2b
a second embodiment for the control of the hydraulic actuator,
FIG. 3
a third embodiment of a possibility for changing the spring stiffness of the gripper system, and
FIG. 4
A fourth embodiment with controlled contact pressure.

Eine Bogen 7 verarbeitende Maschine 1, z. B. eine Druckmaschine, weist einen Anleger 2, mindestens ein Druckwerk 3 bzw. 4 und einen Ausleger 6 auf. Die Bogen 7 werden von einem Bogenstapel 8 entnommen und vereinzelt oder schuppenförmig über einen Zuführtisch 9 den Druckwerken 3 und 4 zugeführt. Diese enthalten in bekannter Weise jeweils einen Plattenzylinder 11; 12. Die Plattenzylinder 11 und 12 weisen jeweils eine Vorrichtung 13, 14 zum Befestigen flexibler Druckplatten auf. Darüber hinaus ist jedem Plattenzylinder 11; 12 eine Vorrichtung 16; 17 für den halb- oder vollautomatischen Druckplattenwechsel zugeordnet.A sheet 7 processing machine 1, z. As a printing press, has a feeder 2, at least one printing unit 3 or 4 and a boom 6. The bow 7 are from taken from a sheet stack 8 and isolated or scaly over a Feeding 9 fed to the printing units 3 and 4. These contain in a known manner in each case a plate cylinder 11; 12. The plate cylinders 11 and 12 each have one Device 13, 14 for attaching flexible printing plates. In addition, everyone is Plate cylinder 11; 12, a device 16; 17 for semi or fully automatic Assigned plate change.

Der Bogenstapel 8 liegt auf einer gesteuert anhebbaren Stapelplatte 10 auf. Die Entnahme der Bogen 7 erfolgt von der Oberseite des Bogenstapels 8 mittels eines sogenannten Saugkopfes 18, der unter anderem eine Anzahl von Hub- und Schleppsaugern 19, 21 für die Vereinzelung der Bogen 7 aufweist. Darüber hinaus sind die Blaseinrichtungen 22 zur Auflockerung der oberen Bogenlagen und Tastelemente 23 zur Stapelnachführung vorgesehen. Zur Ausrichtung des Bogenstapels 8, insbesondere der oberen Bogen 7 des Bogenstapels 8 sind eine Anzahl von seitlichen und hinteren Anschlägen 24 vorgesehen.The sheet stack 8 rests on a controllably liftable stacking plate 10. The removal the sheet 7 takes place from the top of the sheet stack 8 by means of a so-called Suction head 18, which includes a number of lifting and Schleppsaugern 19, 21 for the separation of the sheet 7 has. In addition, the blowing devices 22 are for Loosening of the upper sheet layers and sensing elements 23 for stack tracking intended. For aligning the sheet stack 8, in particular the upper sheet 7 of the Sheet stack 8, a number of lateral and rear stops 24 are provided.

Der Transport der Bogen durch die Bogen verarbeitende Maschine erfolgt mittels an den Transportzylindern 24, 26, 27, 28 angeordneten Greifersystemen 29. Der Aufbau dieser Greifersysteme ist im Wesentlichen gleich und wird daher nur anhand des Übergabezylinders 27 beschrieben.The transport of the sheet through the sheet-processing machine by means of the Transport cylinders 24, 26, 27, 28 arranged gripper systems 29. The structure of this Gripper systems is essentially the same and is therefore only based on the Transfer cylinder 27 described.

Figur 2 zeigt eine sogenannte Greiferbrücke, die schwenkbar in einem Zylinderkanal 31 des Übergabezylinders 27 gelagert ist. Die Greiferbrücke besteht im Wesentlichen aus einem Greiferrohr 32, welches eine Anzahl von nebeneinander beabstandet angeordneten Greifern 33 trägt. Das Greiferrohr 32 trägt an seinem ersten Ende einen Steuerhebel 34 für eine Steuerrolle 36, die unter der Kraft einer Torsionsfeder 37 mit einer stationär angeordneten Steuerkurve 38 in Arbeitskontakt steht. Die Torsionsfeder 37 ist ein koaxial vom Greiferrohr 32 umgebener Torsionsfederstab, der auf dem der Steuerrolle 36 zugewandten Ende fest mit dem Greiferrohr 32 verbunden ist. Mit dem anderen Ende ragt die Torsionsfeder 37 aus dem Greiferrohr 32 hinaus und trägt zwischen einer Lagerstelle 39 für den Torsionsfederstab 37 und dem Greiferrohr 32 ein Zahnrad 41.FIG. 2 shows a so-called gripper bridge, which is pivotable in a cylinder channel 31 the transfer cylinder 27 is mounted. The gripper bridge consists essentially of a gripper tube 32, which has a number of spaced side by side Grippers 33 carries. The gripper tube 32 carries at its first end a control lever 34 for a control roller 36, which under the force of a torsion spring 37 with a stationary arranged control cam 38 is in working contact. The torsion spring 37 is a coaxial surrounded by the gripper tube 32 torsion bar, which on the control roller 36 facing end is firmly connected to the gripper tube 32. With the other end sticking out the torsion spring 37 out of the gripper tube 32 and carries between a bearing 39 for the torsion bar 37 and the gripper tube 32, a gear 41st

Das Zahnrad 41 steht im Zahneingriff mit einem weiteren Zahnrad 42, welches auf einer zweiten, parallel zur ersten angeordneten Torsionsfeder 43, insbesondere Torsionsfederstab, befestigt ist. Die zweite Torsionsfeder 43 weist eine erste drehbare Lagerung 44 und auf der gegenüberliegenden Seite eine feste Einspannung 46 auf.The gear 41 is in meshing engagement with another gear 42, which on a second, parallel to the first arranged torsion spring 43, in particular Torsion spring bar, is attached. The second torsion spring 43 has a first rotatable Storage 44 and on the opposite side a fixed restraint 46.

Die Torsionsfeder 43 trägt einen in Abhängigkeit von der Drehzahl der Bogen verarbeitenden Maschine ansteuerbaren und entsprechend betätigbaren Aktuator 47, der eine Verdrillung der beiden Torsionsfederstäbe 37 und 43 bewirkt. Die Torsionsfederstäbe 37, 43 sind so gegeneinander verspannt eingebaut, dass die Steuerrolle 36 im Stillstand der Maschine mit leichtem Druck gegen die Steuerkurve 38 angedrückt wird. Bei Drehzahlerhöhung ruft der Aktuator 47 eine Verdrillung der Torsionsfeder 43 und somit über die Zahnradverbindung 42, 41 eine Verdrillung der Torsionsfeder 37 bzw. höhere Andrückkraft der Steuerrolle 36 an der Steuerkurve 38 hervor.The torsion spring 43 carries a function of the speed of the arc actuatable machine and correspondingly actuatable actuator 47, the a twist of the two torsion spring rods 37 and 43 causes. The torsion spring bars 37, 43 are installed against each other braced so that the control roller 36 at a standstill Machine is pressed with slight pressure against the control cam 38. at Speed increase, the actuator 47 calls a twist of the torsion spring 43 and thus via the gear connection 42, 41 a twist of the torsion spring 37 and higher Pressing force of the control roller 36 on the control cam 38.

Der Aktuator 47 arbeitet elektrisch, magnetisch, pneumatisch oder vorzugsweise hydraulisch.The actuator 47 operates electrically, magnetically, pneumatically or preferably hydraulically.

Zu diesem Zweck ist - wie in Figur 2a dargestellt - eine extern angeordnete, elektrisch antreibbare Hydraulikpumpe 49 vorgesehen, die drehzahlabhängig vom Steuerrechner 51 der Bogen verarbeitenden Maschine den Aktuator 47 über z. B. eine Drehdurchführung mit Druck beaufschlagt. Der Aktuator 47 besteht - wie in Figur 2a, b dargestellt - im Wesentlichen aus einem Arbeitszylinder 52, dessen Zylinderkörper 53 an der Lagerposition der festen Einspannung 46 am Zylinder 27 befestigt ist. Der Arbeitszylinder 52 weist einen in seinem Zylinderkörper gegen Verdrehung gesicherten Kolben 54 auf, welcher mittels eines Bolzens 55 in eine Schrägnut 56 eines zweiten Zylinders 57 eingreift. Der zweite Zylinder 57 ist mit dem Torsionsfederstab 43 derart verbunden, dass die Achse 58 der Torsionsfeder 43 mit der Mittelachse 58 des Arbeitszylinders 53 identisch ist. Eine Beaufschlagung des zwischen Zylinderkörper 53 und Kolben 54 gebildeten Arbeitsraumes 59 führt zu einer translatorischen Verschiebung des Kolbens 54 und einer über Bolzen 55 und Schrägnut 56 erzeugten Verdrillung des zweiten Zylinders 57 bzw. des Torsionsfederstabes 43.For this purpose - as shown in Figure 2a - an externally arranged, electrically drivable hydraulic pump 49 is provided, the speed-dependent from the control computer 51st the sheet processing machine the actuator 47 via z. B. a rotary feedthrough with Pressure applied. The actuator 47 is - as shown in Figure 2a, b - in Essentially from a working cylinder 52, the cylinder body 53 at the storage position the fixed clamping 46 is attached to the cylinder 27. The working cylinder 52 has a in its cylinder body against rotation secured piston 54, which means a bolt 55 engages in a oblique groove 56 of a second cylinder 57. The second Cylinder 57 is connected to the torsion spring rod 43 such that the axis 58 of the Torsion spring 43 with the central axis 58 of the working cylinder 53 is identical. A Actuation of the work space formed between the cylinder body 53 and the piston 54 59 leads to a translational displacement of the piston 54 and a bolt 55th and oblique groove 56 generated twist of the second cylinder 57 and the Torsion spring rod 43.

Eine weitere Möglichkeit zur Ansteuerung bzw. Druckbeaufschlagung des Aktuators 47, insbesondere des Arbeitszylinders 52, zeigt Figur 2b. Eine mit ihrem Gehäuse an einer Gestellwand 62 der Bogen verarbeitenden Maschine 1 stationär angeordnete Axialkolbenpumpe 63 wird durch die Drehung des Zylinderzapfens 64 angetrieben (z. B. Antrieb der Taumelscheibe) und versorgt den Arbeitszylinder 52 über eine Leitung 66 mit einem Arbeitsmedium, vorzugsweise Hydrauliköl. Eine zweite Leitung 67 verbindet einen im Zylinder 27 angeordneten Hydraulikölspeicher 69 mit der Axialkolbenpumpe 63. Another possibility for controlling or pressurizing the actuator 47, in particular of the working cylinder 52, Figure 2b shows. One with her case on one Frame wall 62 of the sheet processing machine 1 stationarily arranged Axial piston pump 63 is driven by the rotation of the cylinder journal 64 (eg. Drive the swash plate) and supplies the working cylinder 52 via a line 66 with a working medium, preferably hydraulic oil. A second line 67 connects one in the cylinder 27 arranged hydraulic oil reservoir 69 with the axial piston pump 63rd

Die Leitungen 66 und 67 sind mit einer Leitung verbunden, in die eine Drossel 68 eingebaut ist. Der von der Pumpe 63 geförderte Volumenstrom erzeugt vor der Drossel 68 einen Staubereich, der zur Ansteuerung des Arbeitszylinders 53 verwendet wird.The lines 66 and 67 are connected to a line into which a throttle 68 is installed. The funded by the pump 63 volume flow generated in front of the throttle 68th a storage area used to drive the working cylinder 53.

Bei einem dritten Ausführungsbeispiel gemäß Figur 3 ist es vorgesehen, die Steifigkeit des gesamten Federsystems dadurch variabel zu machen, dass die tordierbare Länge des Torsionsfederstabes 43 in Abhängigkeit von der Drehzahl der Bogen verarbeitenden Maschine verändert wird. Der als Vierkant ausgebildete Torsionsfederstab 43 wird dabei mit einer Spielpassung von einer axial bewegbaren Aufnahme 71 koaxial umfasst. Die Aufnahme 71 ist verdrehfest gelagert und ist mittels eines Gewinde-Bohrung-Getriebes 72, welches von einem von der Maschinensteuerung 51 ansteuerbaren Motor 73 angetrieben wird.In a third embodiment according to FIG. 3, it is provided that the rigidity of the to make the entire spring system variable, that the twistable length of the Torsion spring rod 43 depending on the speed of the sheet processing Machine is changed. Trained as a square Torsion spring rod 43 is doing with a clearance fit of an axially movable receptacle 71 coaxially. The Receptacle 71 is mounted rotationally fixed and is by means of a threaded bore gear 72, which is driven by a controllable by the machine control 51 motor 73 becomes.

Eine Verschiebung der Aufnahme 71 in Richtung der festen Einspannung 46 verlängert die tordierbare Länge des Torsionsfederstabes 43, wodurch die Federsteifigkeit des gesamten Greifersystems abnimmt und die Andrückkraft der Steuerrolle 36 auf die Steuerkurve 38 verkleinert wird. Mit zunehmender Maschinendrehzahl wird die Aufnahme in die entgegengesetzte Richtung bewegt, wodurch die Federsteifigkeit des Greifersystems erhöht und die Andrückkraft der Steuerrolle 36 auf die Steuerkurve 38 zunimmt.A displacement of the receptacle 71 in the direction of the fixed clamping 46 extends the twistable length of the torsion bar 43, whereby the spring stiffness of the entire Gripper system decreases and the pressing force of the control roller 36 on the control cam 38th is reduced. With increasing engine speed, the inclusion in the moves opposite direction, whereby the spring stiffness of the gripper system increases and the pressing force of the control roller 36 on the control cam 38 increases.

Bei einem vierten Ausführungsbeispiel gemäß Figur 4 ist es vorgesehen, am Steuerhebel 34 einen Kraftaufnehmer, z. B. einen Dehnungsmessstreifen (DMS) 74, anzuordnen, der mit dem Steuerrechner 51 verbunden ist und die Andrückkraft ermittelt, mit welcher die Steuerrolle 36 an die Steuerkurve angedrückt wird. Anhand vorgegebener Daten in Form von Kennlinien oder Formeln ermittelt der Steuerrechner 51 mit den Messdaten die Stellwerte für den Aktuator 47. In a fourth embodiment according to FIG. 4, it is provided on the control lever 34 a force transducer, z. B. a strain gauge (DMS) 74 to arrange, the is connected to the control computer 51 and determines the pressing force with which the Control roller 36 is pressed against the control cam. Based on given data in form of characteristic curves or formulas, the control computer 51 determines the measured data Control values for the actuator 47.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
Druckmaschinepress
22
Anlegerinvestor
33
Druckwerkprinting unit
44
Druckwerkprinting unit
55
./../.
66
Auslegerboom
77
Bogenbow
7 a7 a
nächster Bogennext bow
88th
Bogenstapelsheet pile
99
Zuführtischfeed
1010
Stapelplattestacking plate
1111
Plattenzylinderplate cylinder
1212
Plattenzylinderplate cylinder
1313
DruckplattenbefestigungseinrichtungPrinting plate attachment means
1414
DruckplattenbefestigungseinrichtungPrinting plate attachment means
1515
./../.
1616
DruckplattenwechslerPrinting plate changer
1717
DruckplattenwechslerPrinting plate changer
1818
Saugkopfsuction head
1919
Hubsaugerlifting sucker
2020
./../.
2121
Schleppsaugerpull suckers
2222
Blaseinrichtungblower
2323
Tastelementscanning element
2424
Transport-/bzw. ÜbergabezylinderTransport / or. Transfer cylinder
2525
./../.
2626
Transport-/bzw. ÜbergabezylinderTransport / or. Transfer cylinder
2727
Transport-/bzw. Übergabezylinder Transport / or. Transfer cylinder
2828
Transport-/bzw. ÜbergabezylinderTransport / or. Transfer cylinder
2929
Greifersystemgripper system
3030
./../.
3131
./../.
3232
Greiferrohrgripper tube
3333
Greifergrab
3434
Steuerhebelcontrol lever
3535
./../.
3636
Steuerrollecontrol roller
3737
Torsionsfederstabtorsion bar
3838
Steuerkurve (36)Control cam (36)
3939
Lagerstelle (37)Depository (37)
4040
./../.
4141
Zahnradgear
4242
Zahnradgear
4343
Torsionsfederstabtorsion bar
4444
Lagerungstorage
4545
./../.
4646
feste Einspannung (43)fixed clamping (43)
4747
Aktuatoractuator
4848
./../.
4949
Hydraulikpumpehydraulic pump
5050
./../.
5151
Steuerrechnertax calculator
5252
Arbeitszylinderworking cylinder
5353
Zylinderkörper (52)Cylinder body (52)
5454
Kolben (52)Piston (52)
5555
Bolzen (54)Bolts (54)
5656
Schrägnut (57)Inclined groove (57)
5757
zweiter Arbeitszylinder bzw. Rohrsecond working cylinder or pipe
5858
Achse (43) Axis (43)
5959
Arbeitsraum (52)Working space (52)
6060
./../.
6161
./../.
6262
Gestellwandframe wall
6363
Axialkolbenpumpeaxial piston pump
6464
Zylinderzapfencylinder journal
6565
./../.
6666
Leitungmanagement
6767
Leitungmanagement
6868
Drosselthrottle
6969
Ölspeicheroil storage
7070
./../.
7171
Aufnahmeadmission
7272
GewindebohrungetriebeGewindebohrungetriebe
7373
Motorengine
7474
DehnungsmessstreifenStrain gauges

Claims (14)

Vorrichtung zur Anpassung der Andrückkraft einer Steuerrolle an eine Steuerkurve mittels einer vorgespannten Feder,
dadurch gekennzeichnet, dass die Kraft der Feder (37) in Abhängigkeit von der Drehzahl einer Bogen verarbeitenden Maschine (1) einstellbar ist.
Device for adapting the pressure force of a control roller to a control cam by means of a pretensioned spring,
characterized in that the force of the spring (37) in dependence on the speed of a sheet-processing machine (1) is adjustable.
Vorrichtung zur Anpassung der Andrückkraft einer Steuerrolle an eine Steuerkurve mittels einer vorgespannten Feder,
dadurch gekennzeichnet, dass die Kraft der Feder (37) in Abhängigkeit von der Andrückkraft zwischen der Steuerrolle (36) und der Steuerkurve (38) regelbar ist.
Device for adapting the pressing force of a control roller to a control cam by means of a pretensioned spring,
characterized in that the force of the spring (37) in dependence on the pressing force between the control roller (36) and the control cam (38) is controllable.
Vorrichtung nach Anspruch 1 oder 2,
dadurch gekennzeichnet, dass die Feder ein Torsionsfederstab (37; 43) ist und dass die Einstellung der Federkraft durch Änderung der Vorspannung des Torsionsfederstabes (37; 43) mittels eines Aktuators (47) erfolgt.
Apparatus according to claim 1 or 2,
characterized in that the spring is a torsion spring rod (37; 43) and that the adjustment of the spring force by changing the bias of the Torsionsfederstabes (37; 43) by means of an actuator (47).
Vorrichtung nach Anspruch 1 oder 2,
dadurch gekennzeichnet, dass die Feder ein Torsionsfederstab (37; 43) ist und dass die Einstellung der Federkraft durch Änderung der Federsteifigkeit des Torsionsfederstabes (37; 43) mittels eines Versteifungselementes (71) erfolgt.
Apparatus according to claim 1 or 2,
characterized in that the spring is a Torsionsfederstab (37, 43) and that the adjustment of the spring force by changing the spring stiffness of the Torsionsfederstabes (37, 43) by means of a stiffening element (71).
Vorrichtung nach Anspruch 4,
dadurch gekennzeichnet, dass zur Änderung der Federsteifigkeit des Torsionsfederstabes (37; 43) ein Versteifungselement (71) vorgesehen ist.
Device according to claim 4,
characterized in that a stiffening element (71) is provided for changing the spring stiffness of the torsion spring rod (37; 43).
Vorrichtung nach Anspruch 5,
dadurch gekennzeichnet, dass das Versteifungselement (71) eine verdrehsichere, axial verschiebbare Aufnahme ist, die den Torsionsfederstab (43) umfasst.
Device according to claim 5,
characterized in that the stiffening element (71) is a torsion-proof, axially displaceable receptacle, which comprises the torsion spring rod (43).
Vorrichtung nach Anspruch 6,
dadurch gekennzeichnet, dass das Versteifungselement (71) entlang des Torsionsfederstabes (43) mittels eines Stellmotors (73) verschiebbar ist.
Device according to claim 6,
characterized in that the stiffening element (71) along the Torsionsfederstabes (43) by means of a servomotor (73) is displaceable.
Vorrichtung nach Anspruch 1 bis 7,
dadurch gekennzeichnet, dass die Steuerrolle (36) Teil eines kurvengesteuerten Greifersystems (29) ist, bei welchem die Andrückkraft mittels der Torsionsfederstäbe (37, 43) aufgebracht wird, wobei diese parallel geschaltet miteinander in Wirkverbindung stehen.
Device according to claims 1 to 7,
characterized in that the control roller (36) is part of a cam-controlled gripper system (29), wherein the pressing force by means of the torsion spring rods (37, 43) is applied, which are connected in parallel with each other in operative connection.
Vorrichtung nach Anspruch 8,
dadurch gekennzeichnet, dass die Torsionsfederstäbe (37, 43) mittels einer Zahnradkopplung (41, 42) miteinander in Wirkverbindung stehen.
Device according to claim 8,
characterized in that the torsion spring rods (37, 43) by means of a gear coupling (41, 42) are in operative connection with each other.
Vorrichtung nach Anspruch 9,
dadurch gekennzeichnet, dass der Torsionsfederstab (43) den Aktuator (47) zur Verdrehung des Torsionsfederstabes (43) aufweist.
Device according to claim 9,
characterized in that the torsion spring rod (43) has the actuator (47) for rotating the torsion spring rod (43).
Vorrichtung nach Anspruch 10,
dadurch gekennzeichnet, dass der Aktuator (47) einen hydraulisch betätigbarer Arbeitszylinder (53) aufweist.
Device according to claim 10,
characterized in that the actuator (47) has a hydraulically actuable working cylinder (53).
Vorrichtung nach Anspruch 11,
dadurch gekennzeichnet, dass ein Arbeitsraum (59) des Arbeitszylinders (52) mit Druck von einer stationär angeordneten Pumpe (49) beaufschlagbar ist, die von einem Steuerrechner (51) in Abhängigkeit von der Drehzahl der Bogen verarbeitenden Maschine antreibbar ist.
Device according to claim 11,
characterized in that a working space (59) of the working cylinder (52) can be acted upon by pressure from a stationarily arranged pump (49) which can be driven by a control computer (51) in dependence on the speed of the sheet-processing machine.
Vorrichtung nach Anspruch 11,
dadurch gekennzeichnet, dass ein Arbeitsraum (59) des Arbeitszylinders (52) mit Druck von einer Hydraulikpumpe (63) beaufschlagbar ist, die von dem Zylinder (27) angetrieben wird, welcher die Torsionsstabfeder (43) trägt.
Device according to claim 11,
characterized in that a working chamber (59) of the working cylinder (52) is acted upon by pressure from a hydraulic pump (63) which is driven by the cylinder (27) which carries the torsion bar spring (43).
Vorrichtung nach Anspruch 13,
dadurch gekennzeichnet, dass die Pumpe (63) über eine Zuleitung (66) mit dem Arbeitsraum (59) und über eine weitere Zuleitung (67) mit einem zylinderfesten Ölspeicher (69) verbunden ist, wobei die Zuleitung (66, 67) mittels einer Drossel (68) verbunden sind.
Device according to claim 13,
characterized in that the pump (63) via a supply line (66) to the working space (59) and via a further supply line (67) with a cylinder-fixed oil reservoir (69) is connected, wherein the supply line (66, 67) by means of a throttle (68) are connected.
EP05101803.4A 2004-03-26 2005-03-09 Speed depending pressing force Not-in-force EP1579991B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004014868 2004-03-26
DE102004014868A DE102004014868A1 (en) 2004-03-26 2004-03-26 Speed-dependent pressing force

Publications (2)

Publication Number Publication Date
EP1579991A1 true EP1579991A1 (en) 2005-09-28
EP1579991B1 EP1579991B1 (en) 2014-07-16

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ID=34854065

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05101803.4A Not-in-force EP1579991B1 (en) 2004-03-26 2005-03-09 Speed depending pressing force

Country Status (4)

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US (1) US7370580B2 (en)
EP (1) EP1579991B1 (en)
JP (1) JP2005280355A (en)
DE (1) DE102004014868A1 (en)

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Publication number Priority date Publication date Assignee Title
DE102006025789A1 (en) * 2006-06-02 2007-12-13 Man Roland Druckmaschinen Ag Sheet fed printer has gripper drive system(s) in at least one cylinder for applying work required to actuate gripper finger, control device for machine-synchronous driving of gripper finger drive system by signaling
DE102006025787A1 (en) * 2006-06-02 2007-12-13 Man Roland Druckmaschinen Ag Sheet feeding printing machine e.g. for printing machine, has several printing plants serving cylinder pipe with several cylinders
DE102006029884B4 (en) * 2006-06-28 2014-07-10 Koenig & Bauer Aktiengesellschaft Device for forced flow safety
DE102008060291B4 (en) 2007-12-13 2022-09-01 Heidelberger Druckmaschinen Ag Sheet acceleration system for a sheet-fed printing press
DE102017205321B3 (en) * 2017-03-29 2017-11-16 Koenig & Bauer Ag Conveyor for flat conveyed a printing press

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DE934770C (en) * 1954-05-06 1955-11-03 Roland Offsetmaschf Gripper arrangement for sheet processing machines
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DE19956369A1 (en) 2000-04-15 2001-05-31 Koenig & Bauer Ag Roller lever in grip control transmission of sheet feed of rotary sheet press,

Also Published As

Publication number Publication date
US20050211122A1 (en) 2005-09-29
EP1579991B1 (en) 2014-07-16
JP2005280355A (en) 2005-10-13
DE102004014868A1 (en) 2005-10-13
US7370580B2 (en) 2008-05-13

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