EP1005981B1 - Device and method for the compensation of slip of a tubular printing form - Google Patents

Device and method for the compensation of slip of a tubular printing form Download PDF

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Publication number
EP1005981B1
EP1005981B1 EP99123058A EP99123058A EP1005981B1 EP 1005981 B1 EP1005981 B1 EP 1005981B1 EP 99123058 A EP99123058 A EP 99123058A EP 99123058 A EP99123058 A EP 99123058A EP 1005981 B1 EP1005981 B1 EP 1005981B1
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EP
European Patent Office
Prior art keywords
forme
printing
web
point
tubular
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Expired - Lifetime
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EP99123058A
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German (de)
French (fr)
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EP1005981A1 (en
Inventor
Erich Wech
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Manroland AG
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MAN Roland Druckmaschinen AG
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Publication of EP1005981A1 publication Critical patent/EP1005981A1/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41FPRINTING MACHINES OR PRESSES
    • B41F13/00Common details of rotary presses or machines
    • B41F13/08Cylinders
    • B41F13/10Forme cylinders
    • B41F13/12Registering devices
    • B41F13/14Registering devices with means for displacing the cylinders
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41PINDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2233/00Arrangements for the operation of printing presses
    • B41P2233/50Marks on printed material
    • B41P2233/52Marks on printed material for registering

Definitions

  • the invention relates to a device and a method for compensating slip of a printing forme sleeve on the forme cylinder of a printing unit.
  • DE 35 43 704 C2 shows a printing sleeve, which is held by means of a shrink fit on the forme cylinder.
  • a frictional connection there is a risk that the printing forme sleeve rotates in the circumferential direction when the shrinkage fit is not sufficiently strong.
  • a compression molding sleeve is provided on its inner wall with a guide element running in the direction of the longitudinal axis of the sleeve, for example a web, which projects into a groove of the forme cylinder in the assembled state of the sleeve.
  • a guide element running in the direction of the longitudinal axis of the sleeve, for example a web, which projects into a groove of the forme cylinder in the assembled state of the sleeve.
  • an embossing machine with which an already printed in a separate printing machine web can be provided with a specific pattern, i. to an existing print, the application of an embossing in a certain orientation.
  • This embossing machine requires only one on both sides of the already printed web arranged embossing rollers, so that the use of nested printing units for applying multi-color printing on a printing substrate problems occurring due to the shift in the printing units used printing sleeve can not occur.
  • the object is achieved with the features of the independent claims. Thanks to the single drive of a printing unit, a twisting compression sleeve together with the forme cylinder can be rotated back into a desired position without the need for a separate adjusting device, ie an additional motor.
  • a separate adjusting device ie an additional motor.
  • the way is open to mount compression sleeves on form cylinders without the risk of waste or loss of quality in a slipping of the sleeves form.
  • the printing form sleeves are inexpensive to create.
  • the invention will be explained in more detail below using an exemplary embodiment.
  • the single drawing shows schematically two printing units with a device for compensation of slip of a printing sleeve.
  • the figure shows two printing units 1,2 a web-fed rotary printing press.
  • Each printing unit 1, 2 contains a form 3, 4, transfer 5, 6 and impression cylinder 7, 8. These printing cylinder 3 to 8 are stored on one side in one or both sides in two side walls, not shown.
  • Each form cylinder 3, 4 is driven by its own motor (electric motor) 9, 10, wherein in the embodiment of the drive is indirectly via the transfer cylinder 5, 6.
  • the motors 9, 10 drive the transfer cylinders 5, 6, and of the latter, the drive of the forme cylinder 3, 4 by means of spur gears 11 to 14 on the journal of these cylinders.
  • motors could drive the forme cylinders 3, 4, and of these, the transfer cylinders 5, 6 are driven via spur gears.
  • each form and transfer cylinders 3 to 6 may be equipped with its own engine.
  • the impression cylinders 7, 8 are each driven by their own motor 15, 16.
  • the pressure cylinders 7, 8 can also be in drive connection with the transmission cylinders 5, 6 by means of spur gears.
  • the form cylinder 3 of the printing unit 1 carries a printing sleeve 17, which is fixed non-positively on this. Possibilities for the change of such a press-fit positioned pressure sleeve are shown in the aforementioned DE 35 43 704 C2.
  • the transfer cylinder 5 has a rubber blanket sleeve 18. Analogous to the printing unit 1, the forme cylinder 4 carries a reference compression sleeve 19 and the transfer cylinder 6 a blanket sleeve 20th
  • the transfer and impression cylinders 5, 7 and 6, 8 each of a printing unit 1, 2 are for printing a passage 21 passed between them each adjustable against each other.
  • the printing unit 1 prints a first web point 22 and the printing unit 2 a second web point 23 on the web 21.
  • the first web point 22 is scanned by a first sensor 24 and the second web point 23 by a second sensor 25.
  • Both sensors 24, 25 are connected to a comparison device 26, which is on the output side via a computer-motor control 27 with the motor 9 of the printing unit 1 in connection.
  • the first web point 22 is the impression of a first molding point 22.1 on the printing plate sleeve 17.
  • the second web point 23 is the impression of a second molding point 23.1 on the reference pressure sleeve 19 of the forme cylinder 4.
  • the first web point 22 is thus a first reference point for the position of the printing sleeve 17th in the circumferential direction of the forme cylinder 3. This position is to be in fixed relation to the position of the reference compression sleeve 19, which is represented by the second web point 23 as a second reference point.
  • the sensors 24, 25 scanning the track points 22 and 23 indicate with signals the passing of the first and second track points 22, 23 on the respective sensor 24, 25. In the comparison device 26, the signals are evaluated.
  • a point on the printing forme sleeve 17 itself can also serve, for example the first molding point 22.
  • the sensor 24 is to be directed to the forme cylinder 3, as indicated by dashed lines in the figure.
  • the evaluation in the comparison device 26 is carried out analogously to the evaluation when scanning the first path point 22, and at a detected Position deviation of the pressure sleeve 17, the motor 9 is readjusted accordingly.
  • a second reference point for the position of the reference pressure sleeve 19 can also be a point on this itself be used, for example, the second shape point 23.1.
  • the sensor 25 is to be directed to the form of printing sleeve 19 carrying the form cylinder 4.
  • the evaluation is carried out analogously to the evaluation when scanning the second path point 23.
  • a color register mark or a cut register mark can advantageously be used which is scanned on the web as the second web point 23 or on the printing form as the second mold point 23.1 with the sensor 25.
  • the so-called stand color is advantageously used as a color register mark, with respect to which the other colors are placed in the register.
  • the second reference point 23, 23.1 has a fixed relation to the cut register.
  • the first track point 22 and the second track point 23 ' can be scanned together by a sensor, for example the sensor 24, wherein the second track point 23' is adjacent to the first track point 24, in the embodiment before the second track point 23 printed point.
  • the printing units 1, 2 of the embodiment work according to an indirect printing method, for example in offset printing.
  • the device is also applicable to other indirect and direct printing methods.
  • each of the printing cylinder 15, 16 may be replaced by a printing unit containing a form and a transfer cylinder.
  • the device for slip compensation can be used both in the upper and in the lower printing unit.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)

Description

Die Erfindung betrifft eine Vorrichtung und ein Verfahren zur Kompensation von Schlupf einer Druckformhülse auf dem Formzylinder eines Druckwerkes.The invention relates to a device and a method for compensating slip of a printing forme sleeve on the forme cylinder of a printing unit.

Die DE 35 43 704 C2 zeigt eine Druckformhülse, die mittels eines Schrumpfsitzes auf dem Formzylinder gehalten wird. Bei einer derartigen kraftschlüssigen Verbindung besteht die Gefahr, dass die Druckformhülse sich in Umfangsrichtung verdreht, wenn die Schrumpfpassung nicht ausreichend kräftig bemessen ist.DE 35 43 704 C2 shows a printing sleeve, which is held by means of a shrink fit on the forme cylinder. In such a frictional connection, there is a risk that the printing forme sleeve rotates in the circumferential direction when the shrinkage fit is not sufficiently strong.

Gemäß der DE 44 12 873 A1 ist eine Druckformhülse an ihrer Innenwandung mit einem in Richtung der Längsachse der Hülse verlaufenden Führungselement, beispielsweise einem Steg, versehen, der im Montagezustand der Hülse in eine Nut des Formzylinders hineinragt. Auf diese Weise ist die Druckformhülse formschlüssig gegen Verdrehen gesichert. Diese Sicherungsart bedarf jedoch einer besonderen Gestaltung der Hülsen.According to DE 44 12 873 A1 a compression molding sleeve is provided on its inner wall with a guide element running in the direction of the longitudinal axis of the sleeve, for example a web, which projects into a groove of the forme cylinder in the assembled state of the sleeve. In this way, the printing form sleeve is positively secured against rotation. However, this type of backup requires a special design of the sleeves.

In der US-A 5,127,324 wird eine Druckmaschine beschrieben, bei der zur Kompensation von Schlupf bzw. von Abweichungen zwischen hintereinander angeordneten Druckwerken durch Nachregelung der Gleichstrommotorantriebe kompensierbar ist. Es handelt sich hierbei um die quasi elektrische Kompensation der Umfangsregister, so dass auf die die genannten Druckwerke durchlaufende Bedruckstoffbahn die einzelnen Farben registergerecht aufbringbar sind. Dabei werden die einzelnen Druckwerke durch einen separaten Motor angetrieben und die von den einzelnen Druckwerken aufgedruckten Markierungen werden von der Bedruckstoffbahn abgelesen und durch Vergleich wird zur Erzeugung eines Farbregisters eine Verdrehung der einzelnen Druckwerke vorgenommen. Die Formzylinder tragen dabei Druckplatten. Bekanntlich sind derartige Druckplatten mittels ihren Enden in den Zylindergruben der Formzylinder fest verankert, beispielsweise durch Klemmmittel fixiert, so dass eine Verschiebung der Druckplatten auf den Formzylinder nicht möglich ist. Eine diesbezügliche Kompensation einer Druckplattenverdrehung auf den Formzylindern ist somit irrelevant, d.h. absolut unnötig.In US-A 5,127,324 a printing machine is described in which the compensation of slip or deviations between successively arranged printing units by readjustment of the DC motor drives can be compensated. This is the quasi-electrical compensation of the circumferential register, so that the individual colors can be applied in register to the printing material web passing through said printing units. The individual printing units are driven by a separate motor and printed on the individual printing units markers are read from the printing substrate and by comparison, a rotation of the individual printing units is made to produce a color register. The form cylinder carry pressure plates. As is known, such printing plates are firmly anchored by their ends in the cylinder pits of the form cylinder, fixed for example by clamping means, so that a shift of Printing plates on the form cylinder is not possible. A related compensation of a plate rotation on the form cylinders is thus irrelevant, ie absolutely unnecessary.

Desweiteren ist aus der US-A 3,915,090 eine Prägemaschine bekannt, mit der eine bereits in einer separaten Druckmaschine bedruckte Bahn mit einem bestimmten Muster versehen werden kann, d.h. zu einem bereits vorhandenen Druck erfolgt die Aufbringung einer Prägung in einer bestimmten Ausrichtung. Diese Prägemaschine benötigt lediglich ein beidseits der bereits bedruckten Bahn angeordnete Prägewalzen, so dass die bei der Verwendung von ineinander angeordneten Druckwerken zum Aufbringen von Mehrfarbendruck auf eine Bedruckstoffbahn auftretenden Probleme infolge der Verschiebung in den Druckwerken verwendeten Druckformhülsen nicht auftreten kann.Furthermore, from US-A 3,915,090 an embossing machine is known, with which an already printed in a separate printing machine web can be provided with a specific pattern, i. to an existing print, the application of an embossing in a certain orientation. This embossing machine requires only one on both sides of the already printed web arranged embossing rollers, so that the use of nested printing units for applying multi-color printing on a printing substrate problems occurring due to the shift in the printing units used printing sleeve can not occur.

Es ist Aufgabe der Erfindung, eine Vorrichtung und ein Verfahren zum Einsatz in einer Druckmaschine mit mehreren hintereinander angeordneten Druckwerken mit Einzelmotorantrieben zu schaffen, die dem Verdrehen einer Druckformhülse auf einem Formzylinder ohne das Erfordernis eines Formschlusses entgegenwirken.It is an object of the invention to provide a device and a method for use in a printing press with a plurality of successively arranged printing units with single motor drives, which counteract the rotation of a printing sleeve on a forme cylinder without the requirement of a positive connection.

Erfindungsgemäß wird die Aufgabe mit den Merkmalen der unabhängigen Patentansprüche gelöst. Dank dem Einzelantrieb eines Druckwerks ist eine sich verdrehende Druckformhülse mitsamt dem Formzylinder in eine Sollposition zurückdrehbar, ohne dass hierfür eine separate Stellvorrichtung, d. h. ein zusätzlicher Motor nötig ist. Somit ist der Weg offen, Druckformhülsen kraftschlüssig auf Formzylindern zu montieren, ohne die Gefahr von Makulatur oder Qualitätseinbußen bei einem Rutschen der Formhülsen einzugehen. Die Druckformhülsen sind kostengünstig erstellbar.According to the invention the object is achieved with the features of the independent claims. Thanks to the single drive of a printing unit, a twisting compression sleeve together with the forme cylinder can be rotated back into a desired position without the need for a separate adjusting device, ie an additional motor. Thus, the way is open to mount compression sleeves on form cylinders without the risk of waste or loss of quality in a slipping of the sleeves form. The printing form sleeves are inexpensive to create.

Weitere Merkmale und Vorteile ergeben sich aus den Unteransprüchen in Verbindung mit der Beschreibung.Other features and advantages will become apparent from the dependent claims in conjunction with the description.

Die Erfindung soll nachfolgend an einem Ausführungsbeispiel näher erläutert werden. Die einzige Zeichnung zeigt schematisch zwei Druckwerke mit einer Vorrichtung zur Kompensation von Schlupf einer Druckformhülse.The invention will be explained in more detail below using an exemplary embodiment. The single drawing shows schematically two printing units with a device for compensation of slip of a printing sleeve.

Die Figur zeigt zwei Druckwerke 1,2 einer Rollenrotationsdruckmaschine. Jedes Druckwerk 1, 2 enthält einen Form- 3, 4, Übertragungs- 5, 6 und Druckzylinder 7, 8. Diese Druckwerkzylinder 3 bis 8 sind einseitig in einer oder beidseitig in zwei nicht dargestellten Seitenwänden gelagert. Jeder Formzylinder 3, 4 wird von einem eigenen Motor (Elektromotor) 9, 10 angetrieben, wobei im Ausführungsbeispiel der Antrieb indirekt über die Übertragungszylinder 5, 6 erfolgt. Hierzu treiben die Motoren 9, 10 die Übertragungszylinder 5, 6 an, und von letzteren erfolgt der Antrieb der Formzylinder 3, 4 mittels Stirnrädern 11 bis 14 auf den Zapfen dieser Zylinder. Ebenso könnten Motoren die Formzylinder 3, 4 antreiben, und von diesen werden über Stirnräder die Übertragungszylinder 5, 6 angetrieben. Auch kann unter Entfall der Stirnräder 11 bis 14 jeder Form- und Übertragungszylinder 3 bis 6 mit einem eigenen Motor ausgestattet sein. Auch werden beispielhaft die Druckzylinder 7, 8 von jeweils einem eigenen Motor 15, 16 angetrieben. Statt dessen können unter Entfall der Motoren 15,16 die Druckzylinder 7, 8 auch mittels Stirnrädern mit den Übertragungszylindem 5, 6 in Antriebsverbindung stehen.The figure shows two printing units 1,2 a web-fed rotary printing press. Each printing unit 1, 2 contains a form 3, 4, transfer 5, 6 and impression cylinder 7, 8. These printing cylinder 3 to 8 are stored on one side in one or both sides in two side walls, not shown. Each form cylinder 3, 4 is driven by its own motor (electric motor) 9, 10, wherein in the embodiment of the drive is indirectly via the transfer cylinder 5, 6. For this purpose, the motors 9, 10 drive the transfer cylinders 5, 6, and of the latter, the drive of the forme cylinder 3, 4 by means of spur gears 11 to 14 on the journal of these cylinders. Likewise, motors could drive the forme cylinders 3, 4, and of these, the transfer cylinders 5, 6 are driven via spur gears. Also, with omission of the spur gears 11 to 14 of each form and transfer cylinders 3 to 6 may be equipped with its own engine. Also, by way of example, the impression cylinders 7, 8 are each driven by their own motor 15, 16. Instead, with the omission of the motors 15, 16, the pressure cylinders 7, 8 can also be in drive connection with the transmission cylinders 5, 6 by means of spur gears.

Der Formzylinder 3 des Druckwerks 1 trägt eine Druckformhülse 17, die kraftschlüssig auf diesem fixiert ist. Möglichkeiten für das Wechseln einer derart mit Preßsitz positionierten Druckformhülse sind in der bereits erwähnten DE 35 43 704 C2 aufgezeigt. Der Übertragungszylinder 5 weist eine Gummituchhülse 18 auf. Analog zum Druckwerk 1 trägt der Formzylinder 4 eine Bezugsdruckformhülse 19 und der Übertragungszylinder 6 eine Gummituchhülse 20.The form cylinder 3 of the printing unit 1 carries a printing sleeve 17, which is fixed non-positively on this. Possibilities for the change of such a press-fit positioned pressure sleeve are shown in the aforementioned DE 35 43 704 C2. The transfer cylinder 5 has a rubber blanket sleeve 18. Analogous to the printing unit 1, the forme cylinder 4 carries a reference compression sleeve 19 and the transfer cylinder 6 a blanket sleeve 20th

Die Übertragungs- und Druckzylinder 5, 7 bzw. 6, 8 jeweils eines Druckwerks 1, 2 sind für das Bedrucken einer zwischen ihnen hindurchgeführten Bahn 21 jeweils gegeneinander anstellbar. Beim Drucken druckt das Druckwerk 1 einen ersten Bahnpunkt 22 und das Druckwerk 2 einen zweiten Bahnpunkt 23 auf die Bahn 21. Der erste Bahnpunkt 22 wird von einem ersten Sensor 24 und der zweite Bahnpunkt 23 von einem zweiten Sensor 25 abgetastet. Beide Sensoren 24, 25 sind auf eine Vergleichseinrichtung 26 geschaltet, die ausgangsseitig über eine Rechner-Motor-Regelung 27 mit dem Motor 9 des Druckwerks 1 in Verbindung steht.The transfer and impression cylinders 5, 7 and 6, 8 each of a printing unit 1, 2 are for printing a passage 21 passed between them each adjustable against each other. During printing, the printing unit 1 prints a first web point 22 and the printing unit 2 a second web point 23 on the web 21. The first web point 22 is scanned by a first sensor 24 and the second web point 23 by a second sensor 25. Both sensors 24, 25 are connected to a comparison device 26, which is on the output side via a computer-motor control 27 with the motor 9 of the printing unit 1 in connection.

Der erste Bahnpunkt 22 ist der Abdruck eines ersten Formpunktes 22.1 auf der Druckformhülse 17. Der zweite Bahnpunkt 23 ist der Abdruck eines zweiten Formpunktes 23.1 auf der Bezugsdruckformhülse 19 des Formzylinders 4. Der erste Bahnpunkt 22 ist somit ein erster Bezugspunkt für die Position der Druckformhülse 17 in Umfangsrichtung des Formzylinders 3. Diese Position hat in einem festen Bezug zur Position der Bezugsdruckformhülse 19 zu stehen, die von dem zweiten Bahnpunkt 23 als einem zweiten Bezugspunkt verkörpert wird. Die die Bahnpunkte 22 und 23 abtastenden Sensoren 24, 25 zeigen mit Signalen den Vorbeigang des ersten und zweiten Bahnpunktes 22, 23 am jeweiligen Sensor 24, 25 an. In der Vergleichseinrichtung 26 werden die Signale ausgewertet. Bei einer Verdrehung der Druckformhülse 17 gegenüber dem Formzylinder 3, also bei Schlupf der Druckformhülse 17, wird in der Vergleichseinrichtung eine Abweichung von einer Sollposition ermittelt, worauf diese ein entsprechendes Signal zur Nachregelung des Motors 9 an die Rechner-Motor-Regelung 27 abgibt. Bei einem Schlupf der Druckformhülse 17 in Drehrichtung des Formzylinders 3 wird die Drehzahl des Motors 9 verringert, bei einem Schlupf der Druckformhülse 17 entgegen der Drehrichtung des Formzylinders 3 dagegen erhöht, bis die Druckformhülse 17 wieder die gewünschte Drehlage zur Bezugsdruckformhülse 19 einnimmt.The first web point 22 is the impression of a first molding point 22.1 on the printing plate sleeve 17. The second web point 23 is the impression of a second molding point 23.1 on the reference pressure sleeve 19 of the forme cylinder 4. The first web point 22 is thus a first reference point for the position of the printing sleeve 17th in the circumferential direction of the forme cylinder 3. This position is to be in fixed relation to the position of the reference compression sleeve 19, which is represented by the second web point 23 as a second reference point. The sensors 24, 25 scanning the track points 22 and 23 indicate with signals the passing of the first and second track points 22, 23 on the respective sensor 24, 25. In the comparison device 26, the signals are evaluated. In a rotation of the printing forme sleeve 17 relative to the forme cylinder 3, ie slip of the compression sleeve 17, a deviation from a desired position is determined in the comparison device, whereupon this emits a corresponding signal for readjustment of the motor 9 to the computer engine control 27. In a slip of the printing forme sleeve 17 in the direction of rotation of the forme cylinder 3, the speed of the motor 9 is reduced in a slip of the compression molding sleeve 17 counter to the direction of rotation of the forme cylinder 3, however, increased until the compression molding sleeve 17 again assumes the desired rotational position for reference pressure sleeve 19.

Als erster Bezugspunkt für die Position der Druckformhülse 17 auf dem Formzylinder 3 kann auch ein Punkt auf der Druckformhülse 17 selbst dienen, beispielsweise der erste Formpunkt 22.1. Zu seiner Abtastung ist der Sensor 24 auf den Formzylinder 3 zu richten, wie in der Figur gestrichelt angegeben. Die Auswertung in der Vergleichseinrichtung 26 wird analog zur Auswertung bei Abtastung des ersten Bahnpunktes 22 vorgenommen, und bei einer festgestellten Positionsabweichung der Druckformhülse 17 wird der Motor 9 entsprechend nachgeregelt.As a first reference point for the position of the printing forme sleeve 17 on the forme cylinder 3, a point on the printing forme sleeve 17 itself can also serve, for example the first molding point 22. For its scanning, the sensor 24 is to be directed to the forme cylinder 3, as indicated by dashed lines in the figure. The evaluation in the comparison device 26 is carried out analogously to the evaluation when scanning the first path point 22, and at a detected Position deviation of the pressure sleeve 17, the motor 9 is readjusted accordingly.

Als zweiter Bezugspunkt für die Position der Bezugsdruckformhülse 19 kann auch ein Punkt auf dieser selbst benutzt werden, beispiesweise der zweite Formpunkt 23.1. Zur Abtastung des zweiten Formpunktes 23.1 ist dann der Sensor 25 auf den die Bezugsdruckformhülse 19 tragenden Formzylinder 4 zu richten. Die Auswertung erfolgt analog zur Auswertung bei Abtastung des zweiten Bahnpunktes 23.As a second reference point for the position of the reference pressure sleeve 19 can also be a point on this itself be used, for example, the second shape point 23.1. For scanning the second shape point 23.1 then the sensor 25 is to be directed to the form of printing sleeve 19 carrying the form cylinder 4. The evaluation is carried out analogously to the evaluation when scanning the second path point 23.

Als zweiter Bezugspunkt ist vorteilhaft eine Farbregistermarke oder eine Schnittregistermarke verwendbar, die auf die Bahn gedruckt als zweiter Bahnpunkt 23 oder auf der Druckform als zweiter Formpunkt 23.1 mit dem Sensor 25 abgetastet wird. Dabei wird als Farbregistermarke vorteilhaft die sogenannte Standfarbe verwendet, bezüglich der die anderen Farben ins Register gebracht werden. Vorteilhaft hat auch der zweite Bezugspunkt 23, 23.1 einen festen Bezug zum Schnittregister. Auch können der erste Bahnpunkt 22 und der zweite Bahnpunkt 23' gemeinsam von einem Sensor, beispielsweise dem Sensor 24, abgetastet werden, wobei es sich bei dem zweiten Bahnpunkt 23' um einen dem ersten Bahnpunkt 24 benachbarten, im Ausführungsbeispiel zeitlich vor dem zweiten Bahnpunkt 23 gedruckten Punkt handelt.As a second reference point, a color register mark or a cut register mark can advantageously be used which is scanned on the web as the second web point 23 or on the printing form as the second mold point 23.1 with the sensor 25. In this case, the so-called stand color is advantageously used as a color register mark, with respect to which the other colors are placed in the register. Advantageously, the second reference point 23, 23.1 has a fixed relation to the cut register. Also, the first track point 22 and the second track point 23 'can be scanned together by a sensor, for example the sensor 24, wherein the second track point 23' is adjacent to the first track point 24, in the embodiment before the second track point 23 printed point.

Die Druckwerke 1, 2 des Ausführungsbeispiels arbeiten nach einem indirekten Druckverfahren, beispielsweise im Offsetdruck. Die Vorrichtung ist auch bei anderen indirekten und auch bei direkten Druckverfahren anwendbar. Auch kann bei den Druckwerken 1, 2 jeweils der Druckzylinder 15, 16 durch ein einen Form- und einen Übertragungszylinder enthaltendes Druckwerk ersetzt sein. Bei derartigen im Gummi-Gummi-Prinzip arbeitenden Doppeldruckwerken kann die Vorrichtung zur Schlupfkompensation sowohl bei dem oberen als auch bei dem unteren Druckwerk zur Anwendung kommen.The printing units 1, 2 of the embodiment work according to an indirect printing method, for example in offset printing. The device is also applicable to other indirect and direct printing methods. Also, in the printing units 1, 2 each of the printing cylinder 15, 16 may be replaced by a printing unit containing a form and a transfer cylinder. In such working in the rubber-rubber principle double printing units, the device for slip compensation can be used both in the upper and in the lower printing unit.

Claims (8)

  1. A device for the compensation of slippage of a tubular printing forme (17) that is fixed in a force-locking manner on the forme cylinder (3) of a printing unit (1) of a web-fed rotary printing machine that is driven by its own drive motor (9), having a first sensor (24) that scans a first reference point (22, 22.1) for the position of the tubular printing forme (17) in the circumferential direction and is connected to a comparator device (26) to which, furthermore, a second sensor (25) is connected that scans a second reference point (23, 23.1) for the position of a reference tubular printing forme (19) of a further printing unit (2), the comparator device (26) communicating, furthermore, on the output side with the drive motor (9) and, in the event of a deviation in the position of the tubular printing forme (17) from a desired position relative to the reference tubular printing forme that is determined when the signals of the first and second sensor (24, 25) are evaluated, readjusting the speed of the drive motor (9).
  2. A device according to claim 1, characterised in that the first reference point is a first forme point (22.1) on the tubular printing forme (17) and for the detection thereof the first sensor (24) is directed at the forme cylinder (3) of the printing unit (1).
  3. A device according to claim 1, characterised in that the first reference point is a first web point (22) printed on the web (21) by the tubular printing forme (17) and for the detection thereof the first sensor (24) is directed at the web (21).
  4. A device according to one of claims 1 to 3, characterised in that the second reference point is a second forme point (23.1) on the reference tubular printing forme (19) and for the detection thereof the second sensor (25) is directed at the forme cylinder (4) of the further printing unit (2).
  5. A device according to one of claims 1 to 3, characterised in that the second reference point is a second web point (23) printed on the web (21) by the reference tubular printing forme (19) and for the detection thereof the second sensor (25) is directed at the web.
  6. A device according to claim 4 or 5, characterised in that a colour register mark is used as the second reference point (23, 23.1).
  7. A device according to claim 4 or 5, characterised in that a cutting register mark is used as the second reference point (23, 23.1).
  8. A method for the compensation of slippage of a tubular printing forme (17) that is fixed in a force-locking manner on the forme cylinder (3) of a printing unit (1) of a web-fed rotary printing machine that is driven by its own drive motor (9), wherein a signal is obtained for the position of the tubular printing forme (17) and a signal is also obtained for the position of a reference tubular printing forme (19) of a further printing unit (2), and these signals are fed to a comparator device (26), the signals are evaluated, furthermore, in the comparator device (26) and, when a deviation in the position of the tubular printing forme (17) from a desired position relative to the reference tubular printing forme (19) is determined, the speed of the drive motor (9) is readjusted in such a way that the forme cylinder (3) together with the tubular printing forme (17) is accelerated or decelerated in opposition to the direction of slippage of the tubular printing forme (17).
EP99123058A 1998-11-25 1999-11-20 Device and method for the compensation of slip of a tubular printing form Expired - Lifetime EP1005981B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19854343 1998-11-25
DE19854343A DE19854343A1 (en) 1998-11-25 1998-11-25 Device and method for compensating slippage of a printing form sleeve

Publications (2)

Publication Number Publication Date
EP1005981A1 EP1005981A1 (en) 2000-06-07
EP1005981B1 true EP1005981B1 (en) 2006-01-25

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EP99123058A Expired - Lifetime EP1005981B1 (en) 1998-11-25 1999-11-20 Device and method for the compensation of slip of a tubular printing form

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EP (1) EP1005981B1 (en)
DE (2) DE19854343A1 (en)

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US6484634B1 (en) * 1999-09-01 2002-11-26 Fuji Photo Film Co., Ltd. Block copy sheet for lithographic printing plate
ES2229094T3 (en) * 2001-03-26 2005-04-16 KOENIG & BAUER AKTIENGESELLSCHAFT DRIVING A PRINT MECHANISM.
DE10141035A1 (en) * 2001-08-22 2003-03-20 Nexpress Solutions Llc Method and printing machine for determining register errors
US7235197B2 (en) * 2002-07-17 2007-06-26 Awi Licensing Company Method for process control of mechanical embossing texturing
DE10320205B4 (en) 2003-05-07 2015-12-17 Windmöller & Hölscher Kg Multi-color rotary printing press
KR101247296B1 (en) 2009-06-17 2013-03-25 한국기계연구원 System for printed electronics and method for calibration

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US3915090A (en) * 1973-03-21 1975-10-28 Armstrong Cork Co Printed pattern and embossed pattern registration control system
CH594918A5 (en) * 1973-12-13 1978-01-31 Hell Rudolf Dr Ing Gmbh
DE3136703C1 (en) * 1981-09-16 1982-11-04 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Devices on printing presses with register adjustment devices
JPS60122153A (en) * 1983-12-06 1985-06-29 Toppan Printing Co Ltd Printing plate mounting position verification device of multicolor press
DE3543704A1 (en) * 1985-12-11 1987-06-19 Md Papierfabrik Pasing Nicolau DEVICE AND METHOD FOR PRINTING A TRAIN
DE4017285A1 (en) * 1990-05-29 1991-12-05 Windmoeller & Hoelscher PRINTING MACHINE, PREFERABLY FLEXO PRINTING MACHINE
US5127324A (en) * 1990-11-06 1992-07-07 Heidelberg Harris Gmbh Adjustment apparatus with DC drive system for use in a printing press
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DE4412873C2 (en) * 1993-05-13 1995-06-22 Roland Man Druckmasch Register device for a sleeve-shaped offset printing form
DE4401269A1 (en) * 1994-01-18 1995-07-20 Roland Man Druckmasch Method and device for the correct positioning of printing form sleeves
US5488781A (en) * 1994-12-13 1996-02-06 Av Flexologic B.V. Positioning apparatus for printing plates
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JP3357522B2 (en) 1995-12-25 2002-12-16 東洋電機製造株式会社 How to align the mechanical origin of a rotary printing press
JP3315061B2 (en) * 1997-07-30 2002-08-19 日本ボールドウィン株式会社 Content reading determination device for printing paper etc.

Also Published As

Publication number Publication date
EP1005981A1 (en) 2000-06-07
DE19854343A1 (en) 2000-05-31
US6314883B1 (en) 2001-11-13
DE59913076D1 (en) 2006-04-13

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