EP0401500A2 - Device for positioning a flexible printing plate on the plate cylinder of a notary printing machine - Google Patents

Device for positioning a flexible printing plate on the plate cylinder of a notary printing machine Download PDF

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Publication number
EP0401500A2
EP0401500A2 EP90107607A EP90107607A EP0401500A2 EP 0401500 A2 EP0401500 A2 EP 0401500A2 EP 90107607 A EP90107607 A EP 90107607A EP 90107607 A EP90107607 A EP 90107607A EP 0401500 A2 EP0401500 A2 EP 0401500A2
Authority
EP
European Patent Office
Prior art keywords
plate
bending rod
link
cylinder body
register
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.)
Withdrawn
Application number
EP90107607A
Other languages
German (de)
French (fr)
Other versions
EP0401500A3 (en
Inventor
Bernhard Dipl.-Ing. Roskosch
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Heidelberger Druckmaschinen AG
Original Assignee
Heidelberger Druckmaschinen AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Heidelberger Druckmaschinen AG filed Critical Heidelberger Druckmaschinen AG
Publication of EP0401500A2 publication Critical patent/EP0401500A2/en
Publication of EP0401500A3 publication Critical patent/EP0401500A3/en
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F27/00—Devices for attaching printing elements or formes to supports
    • B41F27/12—Devices for attaching printing elements or formes to supports for attaching flexible printing formes
    • B41F27/1218—Devices for attaching printing elements or formes to supports for attaching flexible printing formes comprising printing plate tensioning devices
    • B41F27/1225—Devices for attaching printing elements or formes to supports for attaching flexible printing formes comprising printing plate tensioning devices moving in the printing plate end substantially rectilinearly
    • B41F27/1231—Devices for attaching printing elements or formes to supports for attaching flexible printing formes comprising printing plate tensioning devices moving in the printing plate end substantially rectilinearly by translatory motion substantially tangential to support surface
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F13/00—Common details of rotary presses or machines
    • B41F13/08—Cylinders
    • B41F13/10—Forme cylinders
    • B41F13/12—Registering devices
    • B41F13/16—Registering devices with means for displacing the printing formes on the cylinders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2227/00—Mounting or handling printing plates; Forming printing surfaces in situ
    • B41P2227/40—Adjusting means for printing plates on the cylinder
    • B41P2227/43—Adjusting means for printing plates on the cylinder diagonally

Definitions

  • the invention relates to a device for adjusting flexible printing plates on the plate cylinder of rotary printing presses with clamping rails, in which both plate ends are clamped, with link levers on which the clamping rails are articulated at their two ends, the link levers being pivotally mounted on the cylinder body and the tensioning rails connected in this way can be adjusted relative to one another via control means in such a way that the pressure plate is rotated by a precisely defined pivot point in order to correct the register or register.
  • a known version of this type (DE-OS 36 04 209) uses a control cam to rotate the pressure plate, which acts on a tensioning rail via a roller lever and pivots it.
  • the pressure plate is briefly relaxed in the known embodiment and clamped again on the plate cylinder after adjustment.
  • the consequence of this is that the applicator rollers have to be stopped for a short time, so that the printing of the machine is interrupted. This can lead to disturbances in the ink-water balance and thus to an unwanted change in the printing result.
  • a Tension transmitting member is provided, which can be deflected by an adjusting means, such that the link lever is rotated by the change in length of the link and thus both tensioning rails are adjusted relative to each other.
  • the deflection of the link transmitting the clamping force achieves such a high power transmission that the plate clamping rails and thus the pressure plate can be rotated in the clamped state.
  • This has the great advantage that the register or register can be adjusted during production without the side or circumferential register adjustment being impaired or having to be adjusted. If necessary, the plate can also be stretched in the circumferential direction in order, for example, to be able to compensate for lengthening of paper due to the dampening agent, without the stretching being impaired by a register correction according to the present invention.
  • the member transmitting a clamping force is designed as a bending rod which can be deflected out of the straight line by an actuator via a threaded spindle with an adjusting nut.
  • small adjustment movements can be carried out via remote control, so that a very sensitive and exact setting of the register is possible.
  • the use of a bending rod enables a very large force transmission. It is advantageous if the adjusting nut engages approximately in the middle of the bending rod.
  • the bending rod transmits tensile forces and is designed to be adjustable on its holder on the cylinder body.
  • a bending rod that is subjected to tension can be dimensioned relatively thin and yet transmits very high forces.
  • a spring is provided to eliminate bearing play and to reset the link levers, the force of which is the tensile force counteracts the bending rod. As a result, the entire adjusting mechanism is free of play and wear and is self-locking.
  • the plate cylinder 1 shown in FIG. 1 consists of a cylinder body 2 with steering knuckles 3, 4, which are rotatably supported by bearings 5 in the machine side frames 6, 7.
  • two bearer rings 8 are provided on both sides of the cylinder body, which roll on the bearer rings of a cylinder interacting with the plate cylinder 1.
  • a flexible pressure plate 9 is clamped on the cylinder body 2 via clamping rails 10, 11 (FIGS. 3 and 4). Both clamping rails 10, 11 are arranged in a pit 12 in the cylinder body 2.
  • both tensioning rails 10, 11 are articulated at their two ends via a respective articulation lever 13, 14.
  • the articulated levers 13, 14 are pivotally mounted in the pit 12 of the cylinder body 2 on bearing bolts 15.
  • Each bearing pin 15 is fastened to the bottom of the pit 12 with a thread 16.
  • a fitting sleeve 17 is provided which, in conjunction with a disc 18, ensures exact guidance of the articulation lever 13, 14 (FIG. 3).
  • the flexible pressure plate 9 to be clamped on the cylinder jacket is angled at its two plate ends 20, 21 and is hung with the angled part on the tensioning rails 10, 11 (FIG. 3).
  • the two angled plate ends 20, 21 are held by pressure pieces 22 in order to prevent undesired sliding out.
  • a plurality of compression springs 23 are provided between the tensioning rails 10, 11 and the cylinder body 2 for tensioning the pressure plate 9. These are arranged in recesses 24 on the cylinder body 2 and in receptacles 25 on the tensioning rails 10, 11.
  • the clamping rails 10, 11, which are connected to one another via the link levers 13, 14, are adjustable relative to one another in such a way that the pressure plate 9 is rotated to correct the register or the register by a precisely defined pivot point, so that in addition to the circumferential and lateral register adjustment, a rotation is also performed the printing plate can be carried out on the plate cylinder.
  • the tensioning of the pressure plate 9 on the cylinder body 2 takes place by pivoting at least one tensioning rail 10 via a roller 26 and takes place independently of the device according to the invention.
  • a link transmitting a clamping force preferably a bending rod 27, is provided between a link lever 13 and the cylinder body 2 and can be deflected by an adjusting means, which can be an actuator 28.
  • an adjusting means which can be an actuator 28.
  • the pressure plate 9 is clamped on the cylinder body 2 and that in a middle position the bending rod 27 is arranged stretched between the link lever 13 and a holder 29 on the cylinder body 2.
  • the bending rod 27 is deflected from the straight line, there is a change in length, ie a shortening of the distance between the holder 29 and the articulation lever 13, so that the articulation lever 13 is pivoted.
  • the two tensioning rails 10, 11 are adjusted relative to one another and thereby the pressure plate on the cylinder body 2 is rotated.
  • the holder 29 is guided in a bore 30 in the cylinder body 2 and can be adjusted via adjusting nuts 31 so that the bending rod 27 can be aligned in a certain position.
  • the bending rod 27 can be fastened to the holder 29 by welding.
  • the bending rod 27 At the end of the bending rod 27 opposite the holder, it is also preferably connected to a bearing body 32 by welding.
  • This bearing body 32 is screwed to the articulation lever 13 via a fitting screw 33, so that a pivoting movement of the articulation lever 23 can be initiated via the bending rod 27 (FIGS. 2 and 3).
  • an adjusting nut 34 engages, which can be adjusted by the threaded spindle 35 of the servomotor 28, so that the bending rod 27 is deflected out of the straight line.
  • the servomotor 28, which can be connected to a reduction gear, is attached to the bottom of the pit 12 via flanges 36 and screws 37.
  • a recess 38 in the bottom of the pit 12 serves to receive the servomotor 28.
  • the adjusting nut 34 is arranged in a slot 39 in the bending rod 27 so that it can perform an actuating movement.
  • the deflection of the bending rod 27 tensile forces occurring according to the described configuration are so high that the pressure plate can be rotated on the cylinder body 2 even in the clamped state.
  • other means which transmit tensile or compressive forces can also be used.
  • a tab 40 is provided on the articulation lever 13, on which a compression spring 41 engages.
  • the compression spring 41 is supported on a spring rod 42 which is fastened to the cylinder body 2 via adjusting nuts 43.
  • the force of the compression spring 41 counteracts the tensile force of the bending rod 27, so that a play-free adjustment of the pressure plate is ensured and the link levers 13, 14 are moved back into their starting position.

Abstract

Die Erfindung betrifft eine Vorrichtung zum Verstellen von biegsamen Druckplatten auf dem Plattenzylinder von Rotationsdruckmaschinen mit Spannschienen, in denen beide Plattenenden eingespannt sind, mit Anlenkhebeln, an denen die Spannschienen an ihren beiden Enden gelenkig verbunden sind und mit Mitteln zur Korrektur des Passers, bzw. des Registers um einen genau bestimmten Drehpunkt, wobei diese Korrektur durch Verdrehen der Druckplatte während des Maschinenlaufs durchgeführt werden kann.The invention relates to a device for adjusting flexible printing plates on the plate cylinder of rotary printing presses with clamping rails, in which both plate ends are clamped, with articulated levers on which the clamping rails are articulated at both ends and with means for correcting the register, or the Register about a precisely determined pivot point, this correction can be carried out by rotating the pressure plate while the machine is running.

Description

Die Erfindung betrifft eine Vorrichtung zum Verstellen von biegsamen Druckplatten auf dem Plattenzylinder von Rotationsdruckmaschinen mit Spannschienen, in denen beide Plattenenden eingespannt sind, mit Anlenkhebeln, an denen die Spannschienen an ihren beiden Enden gelenkig verbunden sind, wobei die Anlenkhebel am Zylinderkörper schwenkbar gelagert sind und die so verbundenen Spannschienen über Steuermittel relativ zueinander so verstellbar sind, daß die Druckplatte zur Korrektur des Passers bzw. des Registers um einen genau bestimmten Drehpunkt verdreht wird.The invention relates to a device for adjusting flexible printing plates on the plate cylinder of rotary printing presses with clamping rails, in which both plate ends are clamped, with link levers on which the clamping rails are articulated at their two ends, the link levers being pivotally mounted on the cylinder body and the tensioning rails connected in this way can be adjusted relative to one another via control means in such a way that the pressure plate is rotated by a precisely defined pivot point in order to correct the register or register.

Eine bekannte Ausführung dieser Art (DE-OS 36 04 209) benutzt zum Verdrehen der Druckplatte eine Steuerkurve, die über einen Rollenhebel auf eine Spannschiene einwirkt und diese verschwenkt. Hierzu wird bei der bekannten Ausführung die Druckplatte kurzzeitig entspannt und nach erfolgter Verstellung wieder auf dem Plattenzylinder festgespannt. Dies hat zur Folge, daß die Auftragwalzen kurzzeitig abgestellt werden müssen, so daß der Fortdruck der Maschine unterbrochen ist. Dies kann zu Störungen des Farb-Wasser-Gleichgewichts und somit zu einer ungewollten Veränderung des Druckergebnisses führen.A known version of this type (DE-OS 36 04 209) uses a control cam to rotate the pressure plate, which acts on a tensioning rail via a roller lever and pivots it. For this purpose, the pressure plate is briefly relaxed in the known embodiment and clamped again on the plate cylinder after adjustment. The consequence of this is that the applicator rollers have to be stopped for a short time, so that the printing of the machine is interrupted. This can lead to disturbances in the ink-water balance and thus to an unwanted change in the printing result.

Ausgehend von diesem Stand der Technik ist es die Aufgabe der Erfindung, ein Verdrehen der Druckplatte auf dem Plattenzylinder zur Passer- bzw. Registerkorrektur durchzuführen, die während des Maschinenlaufs keine Druckunterbrechung bedingt.Starting from this prior art, it is the object of the invention to carry out a rotation of the printing plate on the plate cylinder for register or register correction, which does not necessitate an interruption in printing while the machine is running.

Die Aufgabe wird gemäß der Erfindung dadurch gelöst, daß zwischen einem Anlenkhebel und dem Zylinderkörper ein, eine Spannkraft übertragendes Glied vorgesehen ist, das durch ein Stellmittel auslenkbar ist, derart, daß durch die Längenänderung des Gliedes der Anlenkhebel verdreht wird und damit beide Spannschienen relativ zueinander verstellt werden. Durch die Auslenkung des die Spannkraft übertragenden Gliedes wird eine so hohe Kraftübersetzung erreicht, daß die Plattenspannschienen und damit die Druckplatte im aufgespannten Zustand verdreht werden kann. Dies hat den großen Vorteil, daß die Verstellung des Passers, bzw. des Registers, während dem Fortdruck durchführbar ist, ohne daß hierdurch die Seiten- oder Umfangsregisterverstellung beeinträchtigt ist oder verstellt werden muß. Auch läßt sich die Platte, falls erforderlich, in Umfangsrichtung strecken, um z.B feuchtmittelbedingte Papierlängungen kompensieren zu können, ohne daß die Streckung durch eine Registerkorrektur gemäß vorliegender Erfindung beeinträchtigt wird.The object is achieved according to the invention in that between a link lever and the cylinder body, a Tension transmitting member is provided, which can be deflected by an adjusting means, such that the link lever is rotated by the change in length of the link and thus both tensioning rails are adjusted relative to each other. The deflection of the link transmitting the clamping force achieves such a high power transmission that the plate clamping rails and thus the pressure plate can be rotated in the clamped state. This has the great advantage that the register or register can be adjusted during production without the side or circumferential register adjustment being impaired or having to be adjusted. If necessary, the plate can also be stretched in the circumferential direction in order, for example, to be able to compensate for lengthening of paper due to the dampening agent, without the stretching being impaired by a register correction according to the present invention.

In einer vorteilhaften Ausgestaltung der Erfindung ist das eine Spannkraft übertragende Glied als Biegestab ausgebildet, der durch einen Stellmotor über eine Gewindespindel mit Stellmutter aus der Geraden auslenkbar ist. Hiermit können über Fernbedienung kleine Stellbewegungen durchgeführt werden, so daß eine sehr feinfühlige und exakte Einstellung des Registers möglich ist. Die Verwendung eines Biegestabes ermöglicht eine sehr große Kraftübersetzung. Hierbei ist es vorteilhaft, wenn die Stellmutter etwa in der Mitte des Biegestabes angreift.In an advantageous embodiment of the invention, the member transmitting a clamping force is designed as a bending rod which can be deflected out of the straight line by an actuator via a threaded spindle with an adjusting nut. With this, small adjustment movements can be carried out via remote control, so that a very sensitive and exact setting of the register is possible. The use of a bending rod enables a very large force transmission. It is advantageous if the adjusting nut engages approximately in the middle of the bending rod.

In einer weiteren Ausgestaltung der Erfindung überträgt der Biegestab Zugkräfte und ist an seiner Halterung am Zylinderkörper einstellbar ausgebildet. Ein auf Zug beanspruchter Biegestab läßt sich relativ dünn dimensionieren und überträgt trotzdem sehr hohe Kräfte. Weiterhin ist zur Beseitigung von Lagerspiel und zur Rückstellung der Anlenkhebel eine Feder vorgesehen, deren Kraft der Zugkraft des Biegestabes entgegenwirkt. Hierdurch wird der ganze Stellmechanismus spiel- und verschleißfrei und ist selbsthemmend.In a further embodiment of the invention, the bending rod transmits tensile forces and is designed to be adjustable on its holder on the cylinder body. A bending rod that is subjected to tension can be dimensioned relatively thin and yet transmits very high forces. Furthermore, a spring is provided to eliminate bearing play and to reset the link levers, the force of which is the tensile force counteracts the bending rod. As a result, the entire adjusting mechanism is free of play and wear and is self-locking.

Ein Ausführungsbeispiel der Erfindung ist in den Zeichnungen schematisch dargestellt. Es zeigt:

  • Fig. 1 eine Draufsicht auf einen Plattenzylinder
  • Fig. 2 eine Draufsicht auf die Vorrichtung zur Korrektur des Passers
  • Fig. 3 einen Teilquerschnitt durch den Plattenzylinder gemäß 3-3
  • Fig. 4 einen Teilquerschnitt durch den Plattenzylinder gemäß 4-4
An embodiment of the invention is shown schematically in the drawings. It shows:
  • Fig. 1 is a plan view of a plate cylinder
  • Fig. 2 is a plan view of the device for correcting the register
  • Fig. 3 shows a partial cross section through the plate cylinder according to 3-3
  • Fig. 4 shows a partial cross section through the plate cylinder according to 4-4

Der in Fig. 1 wiedergegebene Plattenzylinder 1 besteht aus einem Zylinderkörper 2 mit Achsschenkeln 3, 4, die über Lagerungen 5 in den Maschinenseitengestellen 6, 7 drehbar gelagert sind. Im gezeigten Ausführungsbeispiel sind beiderseits am Zylinderkörper 2 Schmitzringe 8 vorgesehen, die aüf den Schmitzringen eines mit dem Plattenzylinder 1 zusammenwirkenden Zylinders abrollen. Auf dem Zylinderkörper 2 wird eine biegsame Druckplatte 9 über Spannschienen 10, 11 aufgespannt (Fig. 3 und 4). Beide Spannschienen 10, 11 sind in einer Grube 12 im Zylinderkörper 2 angeordnet.The plate cylinder 1 shown in FIG. 1 consists of a cylinder body 2 with steering knuckles 3, 4, which are rotatably supported by bearings 5 in the machine side frames 6, 7. In the exemplary embodiment shown, two bearer rings 8 are provided on both sides of the cylinder body, which roll on the bearer rings of a cylinder interacting with the plate cylinder 1. A flexible pressure plate 9 is clamped on the cylinder body 2 via clamping rails 10, 11 (FIGS. 3 and 4). Both clamping rails 10, 11 are arranged in a pit 12 in the cylinder body 2.

Zur Korrektur des Passers bzw. des Registers sind beide Spannschienen 10, 11 an ihren beiden Enden über je einen Anlenkhebel 13, 14 gelenkig verbunden. Die Anlenkhebel 13, 14 sind in der Grube 12 des Zylinderkörpers 2 auf Lagerbolzen 15 schwenkbar gelagert. Hierbei ist jeder Lagerbolzen 15 am Boden der Grube 12 mit einem Gewinde 16 befestigt. Zwischen Lagerbolzen 15 und Anlenkhebel 13, 14 ist eine Paßbüchse 17 vorgesehen, die in Verbindung mit einer Scheibe 18 eine exakte Führung der Anlenkhebel 13, 14 gewährleistet (Fig. 3).To correct the register or register, both tensioning rails 10, 11 are articulated at their two ends via a respective articulation lever 13, 14. The articulated levers 13, 14 are pivotally mounted in the pit 12 of the cylinder body 2 on bearing bolts 15. Each bearing pin 15 is fastened to the bottom of the pit 12 with a thread 16. Between Bearing pin 15 and articulation lever 13, 14, a fitting sleeve 17 is provided which, in conjunction with a disc 18, ensures exact guidance of the articulation lever 13, 14 (FIG. 3).

Zwischen den Anlenkhebeln 13, 14 und den Spannschienen 10, 11 besteht eine Verbindung über spielfreie Kugelgelenklager 19, so daß eine exakte und spielfreie Führung der beiden Spannschienen 10, 11 gewährleistet ist.Between the link levers 13, 14 and the tension rails 10, 11 there is a connection via play-free ball joint bearings 19, so that an exact and play-free guidance of the two tension rails 10, 11 is ensured.

Die auf dem Zylindermantel aufzuspannenden, biegsame Druckplatte 9 ist an ihren beiden Plattenenden 20, 21 abgewinkelt und wird mit dem abgewinkelten Teil an den Spannschienen 10, 11 eingehängt (Fig. 3). Hierbei sind die beiden abgewinkelten Plattenenden 20, 21 durch Druckstücke 22 gehalten, um ein ungewolltes Herausgleiten zu verhindern. Zum Spannen der Druckplatte 9 sind zwischen Spannschienen 10, 11 und Zylinderkörper 2 mehrere Druckfedern 23 vorgesehen. Diese sind in Ausnehmungen 24 am Zylinderkörper 2 und in Aufnahmen 25 an den Spannschienen 10, 11 angeordnet. Die über die Anlenkhebel 13, 14 miteinander verbundenen Spannschienen 10, 11 sind relativ zueinander so verstellbar, daß die Druckplatte 9 zur Korrektur des Passers bzw. des Registers um einen genau bestimmten Drehpunkt verdreht wird, so daß neben der Umfangs- und Seitenregisterverstellung auch ein Verdrehen der Druckplatte auf dem Plattenzylinder durchgeführt werden kann. Das Spannen der Druckplatte 9 auf dem Zylinderkörper 2 erfolgt durch Verschwenken mindestens einer Spannschiene 10 über eine Rolle 26 und erfolgt unabhängig von der erfindungsgemäßen Vorrichtung.The flexible pressure plate 9 to be clamped on the cylinder jacket is angled at its two plate ends 20, 21 and is hung with the angled part on the tensioning rails 10, 11 (FIG. 3). Here, the two angled plate ends 20, 21 are held by pressure pieces 22 in order to prevent undesired sliding out. A plurality of compression springs 23 are provided between the tensioning rails 10, 11 and the cylinder body 2 for tensioning the pressure plate 9. These are arranged in recesses 24 on the cylinder body 2 and in receptacles 25 on the tensioning rails 10, 11. The clamping rails 10, 11, which are connected to one another via the link levers 13, 14, are adjustable relative to one another in such a way that the pressure plate 9 is rotated to correct the register or the register by a precisely defined pivot point, so that in addition to the circumferential and lateral register adjustment, a rotation is also performed the printing plate can be carried out on the plate cylinder. The tensioning of the pressure plate 9 on the cylinder body 2 takes place by pivoting at least one tensioning rail 10 via a roller 26 and takes place independently of the device according to the invention.

In einer vorteilhaften Ausgestaltung der Erfindung ist zwischen einem Anlenkhebel 13 und dem Zylinderkörper 2 ein eine Spannkraft übertragendes Glied, vorzugsweise ein Biegestab 27, vorgesehen, der durch ein Stellmittel, bei dem es sich um einen Stellmotor 28 handeln kann, auslenkbar ist. Es ist davon auszugehen, daß die Druckplatte 9 auf dem Zylinderkörper 2 festgespannt ist und daß in einer mittleren Position der Biegestab 27 gestreckt zwischen dem Anlenkhebel 13 und einer Halterung 29 am Zylinderkörper 2 angeordnet ist. Beim Auslenken des Biegestabes 27 aus der Gerade erfolgt eine Längenänderung, d.h. eine Verkürzung der Strecke zwischen der Halterung 29 und dem Anlenkhebel 13, so daß der Anlenkhebel 13 verschwenkt wird. Durch die Kopplung der beiden Spannschienen 10, 11 über die Anlenkhebel 13, 14 erfolgt somit ein Verstellen der beiden Spannschienen 10, 11 relativ zueinander und hierdurch ein Verdrehen der Druckplatte auf dem Zylinderkörper 2. Die Halterung 29 ist in einer Bohrung 30 im Zylinderkörper 2 geführt und läßt sich über Stellmuttern 31 verstellen, so daß der Biegestab 27 in einer bestimmten Position ausgerichtet werden kann. Die Befestigung des Biegestabes 27 an der Halterung 29 kann durch Schweißen erfolgen.In an advantageous embodiment of the invention, a link transmitting a clamping force, preferably a bending rod 27, is provided between a link lever 13 and the cylinder body 2 and can be deflected by an adjusting means, which can be an actuator 28. It can be assumed that the pressure plate 9 is clamped on the cylinder body 2 and that in a middle position the bending rod 27 is arranged stretched between the link lever 13 and a holder 29 on the cylinder body 2. When the bending rod 27 is deflected from the straight line, there is a change in length, ie a shortening of the distance between the holder 29 and the articulation lever 13, so that the articulation lever 13 is pivoted. By coupling the two tensioning rails 10, 11 via the articulation levers 13, 14, the two tensioning rails 10, 11 are adjusted relative to one another and thereby the pressure plate on the cylinder body 2 is rotated. The holder 29 is guided in a bore 30 in the cylinder body 2 and can be adjusted via adjusting nuts 31 so that the bending rod 27 can be aligned in a certain position. The bending rod 27 can be fastened to the holder 29 by welding.

An dem der Halterung gegenüberliegenden Ende des Biegestabes 27 ist er mit einem Lagerkörper 32 ebenfalls vorzugsweise durch Schweißen verbunden. Dieser Lagerkörper 32 ist über eine Paßschraube 33 mit dem Anlenkhebel 13 verschraubt, so daß eine Schwenkbewegung des Anlenkhebels 23 über den Biegestab 27 eingeleitet werden kann (Fig. 2 und 3).At the end of the bending rod 27 opposite the holder, it is also preferably connected to a bearing body 32 by welding. This bearing body 32 is screwed to the articulation lever 13 via a fitting screw 33, so that a pivoting movement of the articulation lever 23 can be initiated via the bending rod 27 (FIGS. 2 and 3).

Etwa in der Mitte des Biegestabes 27 greift eine Stellmutter 34 an, die durch die Gewindespindel 35 des Stellmotors 28 verstellbar ist, so daß der Biegestab 27 aus der Geraden ausgelenkt wird. Der Stellmotor 28, der mit einem Untersetzungsgetriebe verbunden sein kann, ist über Flansche 36 und Schrauben 37 am Boden der Grube 12 befestigt. Eine Ausnehmung 38 im Boden der Grube 12 dient zur Aufnahme des Stellmotors 28. Die Stellmutter 34 ist in einem Schlitz 39 in dem Biegestab 27 angeordnet, so daß dieser eine Stellbewegung ausführen kann. Die beim Auslenken des Biegestabes 27 auftretenden Zugkräfte gemäß der beschriebenen Ausgestaltung sind so hoch, daß die Druckplatte auch im aufgespannten Zustand auf dem Zylinderkörper 2 verdreht werden kann. An Stelle des Biegestabes 27 können auch andere Zug- oder Druckkräfte übertragende Mittel benutzt werden.Approximately in the middle of the bending rod 27, an adjusting nut 34 engages, which can be adjusted by the threaded spindle 35 of the servomotor 28, so that the bending rod 27 is deflected out of the straight line. The servomotor 28, which can be connected to a reduction gear, is attached to the bottom of the pit 12 via flanges 36 and screws 37. A recess 38 in the bottom of the pit 12 serves to receive the servomotor 28. The adjusting nut 34 is arranged in a slot 39 in the bending rod 27 so that it can perform an actuating movement. The deflection of the bending rod 27 tensile forces occurring according to the described configuration are so high that the pressure plate can be rotated on the cylinder body 2 even in the clamped state. Instead of the bending rod 27, other means which transmit tensile or compressive forces can also be used.

Um ein Lagerspiel mit Sicherheit auszuschließen, ist an dem Anlenkhebel 13 eine Lasche 40 vorgesehen, an der eine Druckfeder 41 angreift. Die Druckfeder 41 stützt sich an einem Federstab 42 ab, der über Stellmuttern 43 am Zylinderkörper 2 befestigt ist. Die Kraft der Druckfeder 41 wirkt der Zugkraft des Biegestabes 27 entgegen, so daß eine spielfreie Verstellung der Druckplatte gewährleistet ist und die Anlenkhebel 13, 14 in ihre Ausgangslage zurückbewegt werden.In order to rule out bearing play with certainty, a tab 40 is provided on the articulation lever 13, on which a compression spring 41 engages. The compression spring 41 is supported on a spring rod 42 which is fastened to the cylinder body 2 via adjusting nuts 43. The force of the compression spring 41 counteracts the tensile force of the bending rod 27, so that a play-free adjustment of the pressure plate is ensured and the link levers 13, 14 are moved back into their starting position.

Alle in der Beschreibung erwähnten und in den Zeichnungen dargestellten neuen Merkmale sind erfindungswesentlich, auch soweit sie in den Ansprüchen nicht ausdrücklich beansprucht sind.All the new features mentioned in the description and shown in the drawings are essential to the invention, even if they are not expressly claimed in the claims.

TEILELISTEPARTS LIST

  • 1 Plattenzylinder1 plate cylinder
  • 2 Zylinderkörper2 cylinder bodies
  • 3 Achsschenkel3 steering knuckles
  • 4 Achsschenkel4 steering knuckles
  • 5 Lagerung5 storage
  • 6 Maschinenseitengestell6 machine side frame
  • 7 Maschinenseitengestell7 machine side frame
  • 8 Schmitzring8 bearer ring
  • 9 Druckplatte9 pressure plate
  • 10 Spannschiene10 tensioning rails
  • 11 Spannschiene11 tensioning rail
  • 12 Grube12 pit
  • 13 Anlenkhebel13 link lever
  • 14 Anlenkhebel14 linkage lever
  • 15 Lagerbolzen15 bearing bolts
  • 16 Gewinde16 threads
  • 17 Paßbüchse17 pass sleeve
  • 18 Scheibe18 disc
  • 19 Kugelgelenklager19 ball joint bearings
  • 20 Plattenende20 plate end
  • 21 Plattenende21 plate end
  • 22 Druckstücke22 pressure pieces
  • 23 Druckfeder23 compression spring
  • 24 Ausnehmungen24 recesses
  • 25 Aufnahme25 recording
  • 26 Rolle26 roll
  • 27 Biegestab27 bending rod
  • 28 Stellmotor28 servomotor
  • 29 Halterung29 bracket
  • 30 Bohrung30 hole
  • 31 Stellmutter31 adjusting nut
  • 32 Lagerkörper32 bearing body
  • 33 Paßschraube33 fitting screw
  • 34 Stellmutter34 adjusting nut
  • 35 Gewindespindel35 threaded spindle
  • 36 Flansch36 flange
  • 37 Schraube37 screw
  • 38 Ausnehmung38 recess
  • 39 Schlitz39 slot
  • 40 Lasche40 tab
  • 41 Druckfeder41 compression spring
  • 42 Federstab42 spring rod
  • 43 Stellmutter43 adjusting nut

Claims (5)

1. Vorrichtung zum Verstellen von biegsamen Druckplatten auf dem Plattenzylinder von Rotationsdruckmaschinen mit Spannschienen, in denen beide Plattenenden eingespannt sind, mit Anlenkhebeln, mit denen die Spannschienen an ihren beiden Enden gelenkig verbunden sind, wobei die Anlenkhebel am Zylinderkörper schwenkbar gelagert sind und die so verbundenen Spannschienen über Steuermittel relativ zueinander so verstellbar sind, daß die Druckplatte zur Korrektur des Passers bzw. des Registers um einen genau bestimmten Drehpunkt verdreht wird,
dadurch gekennzeichnet,
daß zwischen einem Anlenkhebel (13) und dem Zylinderkörper (2) ein, eine Spannkraft übertragendes Glied vorgesehen ist, das durch ein Stellmittel auslenkbar ist, derart, daß durch die Längenänderung des Gliedes der Anlenkhebel (13) verdreht wird und damit beide Spannschienen (10, 11) relativ zueinander verstellt werden.1.Device for adjusting flexible printing plates on the plate cylinder of rotary printing presses with clamping rails, in which both plate ends are clamped, with link levers with which the clamping rails are articulated at their two ends, the link levers being pivotally mounted on the cylinder body and connecting them in this way Tensioning rails can be adjusted relative to one another by means of control means in such a way that the pressure plate is rotated by a precisely defined pivot point in order to correct the register or register,
characterized by
that between a link lever (13) and the cylinder body (2) a, a tension-transmitting member is provided, which can be deflected by an adjusting means, such that the link lever (13) is rotated by the change in length of the link and thus both tensioning rails (10 , 11) can be adjusted relative to each other. 2. Vorrichtung nach Anspruch 1,
dadurch gekennzeichnet,
daß das eine Spannkraft übertragende Glied als Biegestab (27) ausgebildet ist, der durch einen Stellmotor (28) über eine Gewindespindel (35) mit Stellmutter (34) aus der Geraden auslenkbar ist.2. Device according to claim 1,
characterized by
that the member transmitting a clamping force is designed as a bending rod (27) which can be deflected from the straight line by an actuator (28) via a threaded spindle (35) with adjusting nut (34). 3. Vorrichtung nach Anspruch 1 und 2,
dadurch gekennzeichnet,
daß die Stellmutter (34) etwa in der Mitte des Biegestabes (27) angreift.3. Device according to claim 1 and 2,
characterized by
that the adjusting nut (34) engages approximately in the middle of the bending rod (27). 4. Vorrichtung nach Anspruch 1 und 2,
dadurch gekennzeichnet,
daß der Biegestab (27) Zugkräfte überträgt und an seiner Halterung (29) am Zylinderkörper eine Einstellvorrichtung (30,31) aufweist.4. Apparatus according to claim 1 and 2,
characterized by
that the bending rod (27) transmits tensile forces and has an adjusting device (30, 31) on its holder (29) on the cylinder body. 5. Vorrichtung nach Anspruch 1 und 4,
dadurch gekennzeichnet,
daß an dem Anlenkhebel (13) zur Beseitigung von Lagerspiel und zur Rückstellung der Anlenkhebel eine Feder (41) angreift, deren Kraft der Zugkraft des Biegestabes (27) entgegenwirkt.5. The device according to claim 1 and 4,
characterized by
that a spring (41) acts on the link lever (13) to eliminate bearing play and to reset the link lever, the force of which counteracts the tensile force of the bending rod (27).
EP19900107607 1989-06-03 1990-04-21 Device for positioning a flexible printing plate on the plate cylinder of a notary printing machine Withdrawn EP0401500A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3918215A DE3918215C1 (en) 1989-06-03 1989-06-03
DE3918215 1989-06-03

Publications (2)

Publication Number Publication Date
EP0401500A2 true EP0401500A2 (en) 1990-12-12
EP0401500A3 EP0401500A3 (en) 1991-04-10

Family

ID=6382047

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19900107607 Withdrawn EP0401500A3 (en) 1989-06-03 1990-04-21 Device for positioning a flexible printing plate on the plate cylinder of a notary printing machine

Country Status (5)

Country Link
US (1) US5088409A (en)
EP (1) EP0401500A3 (en)
JP (1) JPH0375146A (en)
CA (1) CA2018128C (en)
DE (1) DE3918215C1 (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0507635A1 (en) * 1991-04-05 1992-10-07 A.B. Dick Company Plate clamping system for a duplicating machine
GB2254290A (en) * 1991-03-02 1992-10-07 Heidelberger Druckmasch Ag Plate cylinder of a rotary printing press
DE4214167A1 (en) * 1992-04-30 1993-11-04 Roland Man Druckmasch DEVICE FOR RESTRICTING PRINTING PLATES ON THE PLATE CYLINDER OF PRINTING MACHINES, IN PARTICULAR BOW OFFSET PRINTING MACHINES
FR2713141A1 (en) * 1993-12-04 1995-06-09 Heidelberger Druckmasch Ag Device for orienting flexible printing plates on the plate cylinder of rotary printing machines.
DE4140022C5 (en) * 1991-11-26 2007-01-25 Shinohara Machinery Co., Ltd. Device for clamping a printing plate on a plate cylinder of a printing machine
DE102019101172A1 (en) 2019-01-17 2020-07-23 Koenig & Bauer Ag Forme cylinder with holding device and a flexo applicator
EP3771563A1 (en) 2019-08-02 2021-02-03 Koenig & Bauer AG Form cylinder and method for adjusting a clamping force in a holding device
WO2022048933A1 (en) 2020-09-04 2022-03-10 Kolbus Gmbh & Co. Kg Device for clamping a sheet-like roll cover around a roll

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4111636C1 (en) * 1991-04-10 1992-07-30 Man Roland Druckmaschinen Ag, 6050 Offenbach, De
DE4210897C1 (en) * 1992-04-02 1993-08-12 Man Roland Druckmaschinen Ag, 6050 Offenbach, De
JPH08505312A (en) * 1992-10-16 1996-06-11 ザックセ，アンドレアス Method and device for producing a liquid dispersion
DE4306139C2 (en) * 1993-02-27 1996-10-10 Heidelberger Druckmasch Ag Device for carrying out work steps in a cylinder of a printing press
DE19515843C1 (en) * 1995-04-29 1996-06-27 Heidelberger Druckmasch Ag Clamp for printing plate on plate cylinder of rotary printer
JP4734114B2 (en) * 2005-12-28 2011-07-27 アキヤマインターナショナル株式会社 Register adjustment apparatus and registration adjustment method for multi-colored sheet-fed printing press
SE529632C2 (en) * 2006-12-18 2007-10-09 Berg Ind Ab Tensioning and angular adjusting device printing plate mount on rotary printing cylinder, has linkage which converts angular adjustment of one fastening profile to longitudinal displacement of another profile

Citations (1)

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Publication number Priority date Publication date Assignee Title
DE3604209A1 (en) * 1986-02-11 1987-08-13 Heidelberger Druckmasch Ag DEVICE FOR CLAMPING FLEXIBLE PRINTING PLATES ON THE PLATE CYLINDER OF ROTARY PRINTING MACHINES

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DE1536954B2 (en) * 1966-04-07 1971-08-12 Adamovske strojirny, N P , Adamov (Tschechoslowakei) DEVICE FOR SIMILAR SWIVEL ADJUSTMENT OF BOTH ENDS OF A FLEXIBLE PRESSURE PLATE
US4459913A (en) * 1982-08-17 1984-07-17 A. B. Dick Company Adjustment structure for master holder
DE3606351A1 (en) * 1986-02-27 1987-09-03 Heidelberger Druckmasch Ag DEVICE FOR CLAMPING FLEXIBLE PRINTING PLATES ON THE PLATE CYLINDER OF ROTARY PRINTING MACHINES
DE3866063D1 (en) * 1987-08-25 1991-12-12 Heidelberger Druckmasch Ag DEVICE FOR CLAMPING FLEXIBLE PRINTING PLATES ON THE PLATE CYLINDER OF ROTARY PRINTING MACHINES.
DE3731642A1 (en) * 1987-09-19 1989-03-30 Koenig & Bauer Ag PANEL CABINET DEVICE

Patent Citations (1)

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Publication number Priority date Publication date Assignee Title
DE3604209A1 (en) * 1986-02-11 1987-08-13 Heidelberger Druckmasch Ag DEVICE FOR CLAMPING FLEXIBLE PRINTING PLATES ON THE PLATE CYLINDER OF ROTARY PRINTING MACHINES

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2254290A (en) * 1991-03-02 1992-10-07 Heidelberger Druckmasch Ag Plate cylinder of a rotary printing press
EP0507635A1 (en) * 1991-04-05 1992-10-07 A.B. Dick Company Plate clamping system for a duplicating machine
DE4140022C5 (en) * 1991-11-26 2007-01-25 Shinohara Machinery Co., Ltd. Device for clamping a printing plate on a plate cylinder of a printing machine
DE4214167A1 (en) * 1992-04-30 1993-11-04 Roland Man Druckmasch DEVICE FOR RESTRICTING PRINTING PLATES ON THE PLATE CYLINDER OF PRINTING MACHINES, IN PARTICULAR BOW OFFSET PRINTING MACHINES
FR2713141A1 (en) * 1993-12-04 1995-06-09 Heidelberger Druckmasch Ag Device for orienting flexible printing plates on the plate cylinder of rotary printing machines.
DE102019101172A1 (en) 2019-01-17 2020-07-23 Koenig & Bauer Ag Forme cylinder with holding device and a flexo applicator
EP3771563A1 (en) 2019-08-02 2021-02-03 Koenig & Bauer AG Form cylinder and method for adjusting a clamping force in a holding device
DE102019120961A1 (en) * 2019-08-02 2021-02-04 Koenig & Bauer Ag Form cylinder, flexographic applicator and method for adjusting a clamping force in a holding device
WO2022048933A1 (en) 2020-09-04 2022-03-10 Kolbus Gmbh & Co. Kg Device for clamping a sheet-like roll cover around a roll
DE102020123196A1 (en) 2020-09-04 2022-03-10 Kolbus Gmbh & Co. Kg Device for stretching an arcuate roll cover around a roll
US11945210B2 (en) 2020-09-04 2024-04-02 Kolbus Gmbh & Co. Kg Device for mounting a sheet-like roller cover on a roller

Also Published As

Publication number Publication date
CA2018128A1 (en) 1990-12-03
EP0401500A3 (en) 1991-04-10
US5088409A (en) 1992-02-18
DE3918215C1 (en) 1990-11-08
CA2018128C (en) 1993-10-05
JPH0375146A (en) 1991-03-29

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