EP1029670B1 - Device for tilting printing plates on the plate cylinder of printing machines - Google Patents
Device for tilting printing plates on the plate cylinder of printing machines Download PDFInfo
- Publication number
- EP1029670B1 EP1029670B1 EP00102665A EP00102665A EP1029670B1 EP 1029670 B1 EP1029670 B1 EP 1029670B1 EP 00102665 A EP00102665 A EP 00102665A EP 00102665 A EP00102665 A EP 00102665A EP 1029670 B1 EP1029670 B1 EP 1029670B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- adjusting screws
- printing
- stops
- fitted
- link rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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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
- B41F27/005—Attaching and registering printing formes to supports
-
- 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 setting Printing plates on the form cylinder of printing machines, in particular Sheetfed offset printing machines according to the preamble of Claim 1.
- the printing forms are opened mounted a plate cylinder.
- This cylinder points to this in an axially parallel pit, the beginning of printing and the Printing end associated fastening device, which is designed as a clamping rail.
- EP 0 567 797 B1 describes a device for locking of printing plates on the plate cylinder and printing machines known, the clamping rail assigned to the start of printing via several axially spaced clamping screws is supported against a wall of the cylinder.
- the tension screws are by the clamping rail assigned to the start of printing turned and have different thread pitches on.
- the individual clamping screws are over one Coupling rod connected to each other so that pivoting the clamping screws around a common swivel path appropriate entanglement of the tensioning rail compared to the Wall of the cylinder causes. Because of the high weight a clamping rail results in the previously mentioned Zeroing problems. Because of the expense Forces are also corresponding to the corresponding components to dimension what is detrimental to manufacturing costs effect.
- DE 43 06 237 A1 describes a device for adjustment of the inclined register in the clamping device for printing plates known a printing press.
- the one assigned to the start of printing Clamping rail (clamping rail) here has two axially apart spaced stops, with a stop over a assigned adjusting means in the circumferential direction of the cylinder is moved.
- the other stop is designed as a fixed bearing around which the pressure plate can be pivoted. At the Actuation of this device is the clamping of the leading edge of the printing plate repealed.
- a disadvantage of this known device is that Always pivot the pressure plate around one side of the cylinder associated stop takes place.
- EP 0 596 337 B1 describes a device for the register-correct Creation of printing plates on the plate cylinder known from printing presses, the two axially apart spaced stops each assigned an adjusting means is. After opening the pressure plate clamp and the The pressure plate can be actuated by the respective adjustment means can be pivoted around any point.
- the disadvantage is here, however, that the operator has two adjustment means has to be operated one after the other.
- the object of the present invention is therefore a device for setting printing plates on the forme cylinder from Printing machines according to the preamble of claim 1 such further educate, so that avoiding the above mentioned disadvantages in terms of usability and Component effort simple solution is achieved.
- assigned to the stops in the pressure start clamping rail Set screws have different directions of rotation, so that pivoting these set screws by an angular amount moving the stops by, for example, the amount same route but in different directions. This results in the printing plate being entangled by one pivot point in the middle of the machine.
- the Swivel mechanism for the set screws of the stops as a coupling rod formed so that a twisting Set a simultaneous swiveling of the others Set screw causes.
- the an adjusting screw can be operated by hand using a tool and a corresponding scale for reading the adjustment path having.
- Further training can also be provided according to the invention be the adjustment mechanism for pivoting the set screws attach directly to the coupling rod, for example in the form of an additional set screw.
- the set screws for the register stops the same thread pitch but different Have a sense of rotation in the thread. This causes a pivoting the printing plate around a machine center point.
- the register stops assigned set screws have the same direction of thread rotation but have different thread pitch.
- the vote the thread pitch can be such that the Pressure plate after opening the pressure plate clamp by one outside the cylinder or the maximum format corresponding point within the cylinder is pivoted.
- the one used to set a skew register correction can either be on a set screw or on the Coupling rod may be attached. With the latter, the coupling rod opposite the rigid clamping rail or part of the Clamping rail moves and with appropriate markings be provided.
- a set screw or the coupling of the two set screws a clamping is assigned so that a once made Adjustment of both adjusting screws (adjustment of one Diagonal register) fixed, that is "frozen".
- the set screws or the coupling rod is not in by assigned spring means their starting position moves so that once made Incline register setting is retained.
- the piston rod is assigned resilient stops, through which the coupling rod again in a starting position (center) is brought.
- the coupling rod can be a Have indexing so that the zero position of the coupling rod and thus the set screws due to the forces of resilient stops is taken automatically.
- the Coupling rod assigned a clamping mechanism, so the Zero position after opening this clamping mechanism.
- the set screws can also have the same thread (pitch and Have sense of rotation), the in this embodiment Invention the levers associated with the set screws different Have lengths. This creates a common Swiveling the set screws in through the coupling rod Different directions of the stops in the circumferential direction.
- Figure 1 shows a clamping rail 1, which consists of a example fixed top 2 and a movable bottom part 3 there.
- a not shown Pressure plate can thus in a clamping gap 4 between the corresponding Surfaces of the upper part 2 and the lower part 3 be attached.
- the clamping rail 1 shown in Figure 1 is attached in a pit of a cylinder, not shown.
- the clamping rail 1 has two stops 5, which with preferably U-shaped punchings cooperate with a printing plate, not shown. Such punchings and the formation of such Register stops (stop 5) are known per se and need no further explanation at this point.
- Each Stop 5 is assigned an adjusting screw 6, which itself is supported on a support 8, which with the cylinder-fixed upper part 2 of the clamping rail 1 is connected.
- the set screw 6 is associated with a thread in the back of the Stop 5 screwed. It is particularly provided that a set screw 6 a left and the other set screw 6 has a right-hand thread, the amounts of Thread pitch are the same. So there is a pivoting of Set screws 6 by the same angular amount Moving the stops 5 by the same amount Route and in different directions.
- the stops 5 are stored in corresponding guides in the upper part 2 and can move in the corresponding directions without play.
- the stops 5 are also assigned springs 7, by means of which the stops 5 without play compared to the set screws 6 can be moved.
- FIG. 2 shows that the two ends of the coupling rod 10th in each case a resilient stop 11 is assigned, which consists of a movable bolt, which is by means of a spring element is held in contact with the coupling rod 10.
- the Coupling rod 10 is also assigned an adjusting means 12, by means of which the coupling rod by a defined distance can be moved.
- the actuating means 12 can be used as a Set screw, an electrically controllable actuator or a further set screw can be formed. Through the coupling rod 10 transfers the actuation of an adjusting screw 6 directly onto the other set screw 6, whereby according to the thread sense and the thread pitch appropriate entanglement of the printing plate in the open Clamping gap 4 results.
- the coupling rod 10 or an adjusting screw 6 can also a locking device in the form of a clamping device or the like be assigned so that a once made Setting the register (diagonal register) even after Opening of the nip 4 is retained.
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- Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
- Inking, Control Or Cleaning Of Printing Machines (AREA)
- Rotary Presses (AREA)
Abstract
Description
Die Erfindung betrifft eine Vorrichtung zum Schränken von Druckplatten auf dem Formzylinder von Druckmaschinen, insbesondere Bogenoffsetdruckmaschinen gemäß dem Oberbegriff von Anspruch 1.The invention relates to a device for setting Printing plates on the form cylinder of printing machines, in particular Sheetfed offset printing machines according to the preamble of Claim 1.
Bei Bogenoffsetdruckmaschinen werden die Druckformen auf einen Plattenzylinder aufgezogen. Dazu weist dieser Zylinder in einer achsparallelen Grube eine dem Druckanfang und dem Druckende zugeordnete Befestigungseinrichtung auf, welche jeweils als Klemmschiene ausgebildet ist. Um die Druckform registergerecht auf diesem Zylinder ansetzen zu können, sind in der dem Druckanfang zugeordneten Klemmeinrichtung Anschläge angeordnet, welche mit entsprechenden Ausstanzungen an der Druckplattenvorderkante zusammenwirken.With sheetfed offset presses, the printing forms are opened mounted a plate cylinder. This cylinder points to this in an axially parallel pit, the beginning of printing and the Printing end associated fastening device, which is designed as a clamping rail. To the printing form to be able to apply to this cylinder in accordance with the register stops in the clamping device assigned to the start of printing arranged, which with corresponding punchings on the Interact with the leading edge of the printing plate.
Um beim Druck mehrerer Farben durch Papierverzug oder sonstige Einflüsse den Versatz einzelner Druckfarben relativ zueinander ausgleichen zu können, sind die die Druckformen tragenden Zylinder und/oder die Befestigungseinrichtungen für die Druckformen auf den Zylindern verstellbar. Bekannt sind Registerverstellvorrichtungen für das Seiten-, Umfangs- und Schrägregister, wobei der Plattenzylinder insgesamt gegenüber den mit ihm zusammenwirkenden Zylinder (Gummituchzylinder) verstellt wird. Das Schrägverstellen des Plattenzylinders gegenüber dem Gummituchzylinder bewirkt aber einen Verzug des Druckbildes, was gerade bei großformatigen Druckbildern stark ins Gewicht fällt.In order to print several colors due to paper delay or other Influences the offset of individual printing inks relative to one another to be able to compensate are those that support the printing forms Cylinder and / or the fastening devices for the Printing forms adjustable on the cylinders. Are known Register adjustment devices for the lateral, circumferential and Inclined register, with the plate cylinder as a whole opposite the cylinder interacting with it (blanket cylinder) is adjusted. The tilting of the plate cylinder compared to the blanket cylinder causes a delay of the Print image, which is particularly strong with large format print images weight.
Zur Schrägregisterkorrektur ist es daher vorteilhaft, die Druckplatte über die dem Druckanfang zugeordnete Klemmeinrichtung (Spannschiene) auf dem Zylinder zu korrigieren. Ein Verstellmechanismus für die gesamte Spannschiene setzt aber eine präzise Führung der Schiene gegenüber dem Zylinder voraus. Wegen des hohen Gewichtes einer Spannschiene gerade für großformatige Maschinen ist auch das Rückstellen der Spannschiene in die Nullstellung nicht ohne zusätzliche Maßnahmen möglich.For skew register correction, it is therefore advantageous to Pressure plate via the clamping device assigned to the start of printing Correct (tensioning rail) on the cylinder. On Adjustment mechanism for the entire tensioning rail sets precise guidance of the rail in relation to the cylinder ahead. Straight because of the high weight of a tensioning rail For large format machines, resetting the Clamping rail in the zero position not without additional Measures possible.
Aus der EP 0 567 797 B1 ist eine Vorrichtung zum Schränken von Druckplatten auf dem Plattenzylinder und Druckmaschinen bekannt, wobei die dem Druckanfang zugeordnete Spannschiene über mehrere axial voneinander beabstandete Spannschrauben gegenüber einer Wand des Zylinders abgestützt ist. Die Spannschrauben sind durch die dem Druckanfang zugeordnete Spannschiene hindurchgedreht und weisen unterschiedliche Gewindesteigungen auf. Die einzelnen Spannschrauben sind über eine Koppelstange miteinander verbunden, so daß ein Verschwenken der Spannschrauben um einen gemeinsamen Verschwenkweg eine entsprechende Verschränkung der Spannschiene gegenüber der Wand des Zylinders bewirkt. Aufgrund des hohen Gewichtes einer Spannschiene ergeben sich aber die zuvor angesprochenen Probleme hinsichtlich der Nullstellung. Wegen der aufzuwendenden Kräfte sind auch die entsprechenden Bauteile entsprechend zu dimensionieren, was sich nachteilig auf die Herstellungskosten auswirkt.EP 0 567 797 B1 describes a device for locking of printing plates on the plate cylinder and printing machines known, the clamping rail assigned to the start of printing via several axially spaced clamping screws is supported against a wall of the cylinder. The tension screws are by the clamping rail assigned to the start of printing turned and have different thread pitches on. The individual clamping screws are over one Coupling rod connected to each other so that pivoting the clamping screws around a common swivel path appropriate entanglement of the tensioning rail compared to the Wall of the cylinder causes. Because of the high weight a clamping rail results in the previously mentioned Zeroing problems. Because of the expense Forces are also corresponding to the corresponding components to dimension what is detrimental to manufacturing costs effect.
Aus der DE 43 06 237 A1 ist eine Einrichtung zur Einstellung des Schrägregisters in der Spanneinrichtung für Druckplatten einer Druckmaschine bekannt. Die dem Druckanfang zugeordnete Spannschiene (Klemmschiene) weist hier zwei axial voneinander beabstandete Anschläge auf, wobei ein Anschlag über ein zugeordnetes Stellmittel in Umfangsrichtung des Zylinders bewegt wird. Der andere Anschlag ist als Festlager ausgebildet, um welchen die Druckplatte verschwenkt werden kann. Beim Betätigen dieser Einrichtung ist die Klemmung der Druckplattenvorderkante aufzuheben. DE 43 06 237 A1 describes a device for adjustment of the inclined register in the clamping device for printing plates known a printing press. The one assigned to the start of printing Clamping rail (clamping rail) here has two axially apart spaced stops, with a stop over a assigned adjusting means in the circumferential direction of the cylinder is moved. The other stop is designed as a fixed bearing around which the pressure plate can be pivoted. At the Actuation of this device is the clamping of the leading edge of the printing plate repealed.
Nachteilig bei dieser vorbekannten Einrichtung ist, daß das Verschwenken der Druckplatte stets um den einen einer Seite des Zylinders zugeordneten Anschlag erfolgt.A disadvantage of this known device is that Always pivot the pressure plate around one side of the cylinder associated stop takes place.
Aus der EP 0 596 337 B1 ist eine Vorrichtung für das registergerechte Anlegen von Druckplatten auf dem Plattenzylinder von Druckmaschinen bekannt, wobei den beiden axial voneinander beabstandeten Anschlägen jeweils ein Justiermittel zugeordnet ist. Nach dem öffnen der Druckplattenklemmung und dem Betätigen der jeweiligen Justiermittel kann die Druckplatte um jeden beliebigen Punkt verschwenkt werden. Nachteilig ist hierbei jedoch, daß die Bedienperson zwei Justiermittel nacheinander zu betätigen hat.EP 0 596 337 B1 describes a device for the register-correct Creation of printing plates on the plate cylinder known from printing presses, the two axially apart spaced stops each assigned an adjusting means is. After opening the pressure plate clamp and the The pressure plate can be actuated by the respective adjustment means can be pivoted around any point. The disadvantage is here, however, that the operator has two adjustment means has to be operated one after the other.
Zur Korrektur von Schrägregisterfehlern ist es ferner bekannt, der Bogenübergabe dienende Trommeln schräg zu verstellen, d.h. die Achsrichtung einer solchen Trommel zu verschränken. Bei von Schön- auf Schön- und Widerdruck umstellbaren Bogendruckmaschinen, welche nach dem Prinzip der Ein-Trommelwendung aufgebaut sind, ist es aber nicht möglich, die Wendetrommel im Widerdruckbetrieb für derartige Registerkorrekturen zu verwenden.To correct skewed register errors, it is also known to adjust the drums used for the sheet transfer, i.e. to interlock the axial direction of such a drum. When convertible from beautiful to beautiful and reverse printing Sheet-fed printing machines, which operate on the principle of single drum rotation are built up, but it is not possible to Reversing drum in reverse printing for such register corrections to use.
Aufgabe der vorliegenden Erfindung ist es daher eine Vorrichtung zum Schränken von Druckplatten auf den Formzylinder von Druckmaschinen gemäß dem Oberbegriff von Anspruch 1 derartig weiterzubilden, so daß unter Vermeidung der zuvorstehend genannten Nachteile eine hinsichtlich Bedienbarkeit und Bauteilaufwand einfache Lösung erzielt wird.The object of the present invention is therefore a device for setting printing plates on the forme cylinder from Printing machines according to the preamble of claim 1 such further educate, so that avoiding the above mentioned disadvantages in terms of usability and Component effort simple solution is achieved.
Gelöst wird diese Aufgabe durch die kennzeichnenden Merkmale von Anspruch 1. This task is solved by the characteristic features of claim 1.
Weiterbildungen der Erfindung ergeben sich aus den Unteransprüchen.Further developments of the invention result from the subclaims.
Gemäß einer Ausführungsform der Erfindung ist vorgesehen, daß die den Anschlägen in der Druckanfang-Spannschiene zugeordneten Stellschrauben unterschiedlichen Drehsinn aufweisen, so daß ein Verschwenken dieser Stellschrauben um einen Winkelbetrag ein Bewegen der Anschläge um bspw. betragsmäßig die gleiche Strecke aber in unterschiedliche Richtungen bewirkt. Somit ergibt sich ein Verschränken der Druckplatte um einen in Maschinenmitte gelegenen Drehpunkt.According to one embodiment of the invention it is provided that assigned to the stops in the pressure start clamping rail Set screws have different directions of rotation, so that pivoting these set screws by an angular amount moving the stops by, for example, the amount same route but in different directions. This results in the printing plate being entangled by one pivot point in the middle of the machine.
Durch eine derartige Ausbildung des Verstellmechanismus für die Stellschrauben ergibt sich der Vorteil, daß die Druckplatte nach dem Lösen der Klemmung stets um einen vorgegebenen Punkt verschwenkt wird. Gerade bei Drucksujets, welche kleiner sind als das Maximalformat und insbesondere kleiner als der Abstand der Registeranschläge zueinander können Schrägregisterkorrekturen in einfacher Weise ohne zusätzliche Umrechungsmaßnahmen und weitere Umfangsregisterkorrekturen vorgenommen werden.By such a design of the adjustment mechanism for the set screws gives the advantage that the pressure plate after releasing the clamp, always by a predetermined one Point is pivoted. Especially with print subjects, which ones are smaller than the maximum format and in particular smaller than the distance between the register stops Slant register corrections in a simple manner without additional Conversion measures and further corrections to the size register be made.
Gemäß einer bevorzugten Ausführungsform der Erfindung ist der Schwenkmechanismus für die Stellschrauben der Anschläge als eine Koppelstange ausgebildet, so daß ein Verdrehen einer Stellschraube ein gleichzeitiges Verschwenken der anderen Stellschraube bewirkt. Dabei kann vorgesehen sein, daß die eine Stellschraube von Hand über ein Werkzeug betätigbar ist und eine entsprechende Skala zum Ablesen des Verstellweges aufweist. Auch kann erfindungsgemäß weiterbildend vorgesehen sein, den Einstellmechanismus zum Verschwenken der Stellschrauben direkt an der Koppelstange anzubringen, beispielsweise in Form einer zusätzlichen Stellschraube. According to a preferred embodiment of the invention, the Swivel mechanism for the set screws of the stops as a coupling rod formed so that a twisting Set a simultaneous swiveling of the others Set screw causes. It can be provided that the an adjusting screw can be operated by hand using a tool and a corresponding scale for reading the adjustment path having. Further training can also be provided according to the invention be the adjustment mechanism for pivoting the set screws attach directly to the coupling rod, for example in the form of an additional set screw.
Gemäß der zuvorstehend erläuterten Ausführungsform der Erfindung ist vorgesehen, daß die Stellschrauben für die Registeranschläge die gleiche Gewindesteigung aber unterschiedlichen Drehsinn im Gewinde aufweisen. Dies bewirkt eine Verschwenkung der Druckplatte um einen maschinenmittigen Punkt. Alternativ dazu ist auch möglich, daß die den Registeranschlägen zugeordneten Stellschrauben einen gleichen Gewindedrehsinn aber unterschiedliche Gewindesteigung aufweisen. Die Abstimmung der Gewindesteigung kann dabei dergestalt sein, daß die Druckplatte nach dem Öffnen der Druckplattenklemmung um einen außerhalb des Zylinders gelegenen oder dem Maximalformat entsprechenden Punkt innerhalb des Zylinders geschwenkt wird.According to the embodiment of the invention explained above it is provided that the set screws for the register stops the same thread pitch but different Have a sense of rotation in the thread. This causes a pivoting the printing plate around a machine center point. alternative it is also possible that the register stops assigned set screws have the same direction of thread rotation but have different thread pitch. The vote the thread pitch can be such that the Pressure plate after opening the pressure plate clamp by one outside the cylinder or the maximum format corresponding point within the cylinder is pivoted.
Die dem Einstellen einer Schrägregisterkorrektur dienende Skala kann dabei entweder an einer Stellschraube oder an der Koppelstange angebracht sein. Bei letzterer würde die Koppelstange gegenüber der starren Klemmschiene bzw. einen Teil der Klemmschiene bewegt und mit entsprechenden Markierungen versehen sein.The one used to set a skew register correction The scale can either be on a set screw or on the Coupling rod may be attached. With the latter, the coupling rod opposite the rigid clamping rail or part of the Clamping rail moves and with appropriate markings be provided.
Gemäß einer Weiterbildung der Erfindung ist vorgesehen, daß eine Stellschraube bzw. der Kopplung der beiden Stellschrauben eine Klemmung zugeordnet ist, so daß eine einmal vorgenommene Einstellung beider Stellschrauben (Einstellung eines Schrägregisters) fixiert, also "eingefroren" werden kann. Beim Wechseln einer Druckplatte werden die Stellschrauben bzw. die Koppelstange durch zugeordnete Federmittel nicht in ihre Ausgangsstellung bewegt, so daß eine einmal vorgenommene Schrägregistereinstellung erhalten bleibt.According to a development of the invention, it is provided that a set screw or the coupling of the two set screws a clamping is assigned so that a once made Adjustment of both adjusting screws (adjustment of one Diagonal register) fixed, that is "frozen". When changing a pressure plate, the set screws or the coupling rod is not in by assigned spring means their starting position moves so that once made Incline register setting is retained.
Gemäß einer Weiterbildung der Erfindung kann vorgesehen sein, daß der Kolbenstange federnde Anschläge zugeordnet sind, durch welche die Koppelstange wieder in eine Ausgangsposition (mittig) gebracht wird. Die Koppelstange kann dabei eine Indizierung aufweisen, so daß die Nullstellung der Koppelstange und somit der Stellschrauben aufgrund der Kräfte der federnden Anschläge selbsttätig eingenommen wird. Ist der Koppelstange ein Klemmechanismus zugeordnet, so wird die Nullstellung nach dem öffnen dieses Klemmechanismus eingenommen.According to a further development of the invention, that the piston rod is assigned resilient stops, through which the coupling rod again in a starting position (center) is brought. The coupling rod can be a Have indexing so that the zero position of the coupling rod and thus the set screws due to the forces of resilient stops is taken automatically. Is the Coupling rod assigned a clamping mechanism, so the Zero position after opening this clamping mechanism.
Die Stellschrauben können auch gleiche Gewinde (Steigung und Drehsinn) aufweisen, wobei bei dieser Ausführungsform der Erfindung die den Stellschrauben zugeordneten Hebel unterschiedliche Längen haben. Dadurch bewirkt ein gemeinsames Verschwenken der Stellschrauben durch die Koppelstange ein in Umfangsrichtung unterschiedliches Ausrichten der Anschläge.The set screws can also have the same thread (pitch and Have sense of rotation), the in this embodiment Invention the levers associated with the set screws different Have lengths. This creates a common Swiveling the set screws in through the coupling rod Different directions of the stops in the circumferential direction.
Des weiteren erfolgt die Erläuterung eines Ausführungsbeispiels der Erfindung anhand der Zeichnungen.Furthermore, an exemplary embodiment is explained the invention with reference to the drawings.
Es zeigt:
- Fig. 1
- den Schnitt durch eine Klemmschiene mit Registeranschlag und zugeordneter Stellschraube, und
- Fig. 2
- eine Ansicht der Klemmschiene mit Koppelstange und den beiden Stellschrauben.
- Fig. 1
- the section through a clamping rail with register stop and assigned set screw, and
- Fig. 2
- a view of the clamping rail with coupling rod and the two set screws.
Figur 1 zeigt eine Klemmschiene 1, welche aus einem beispielsweise
feststehenden Oberteil 2 sowie einem beweglich
dazu gelagerten Unterteil 3 besteht. Eine nicht dargestellte
Druckplatte kann so in einen Klemmspalt 4 zwischen den entsprechenden
Flächen des Oberteils 2 und des Unterteils 3
befestigt werden. Die in Figur 1 gezeigte Klemmschiene 1 ist
dabei in einer Grube eines nicht gezeigten Zylinders angebracht.Figure 1 shows a clamping rail 1, which consists of a example
fixed
Voneinander beabstandet weist die Klemmschiene 1 zwei Anschläge
5 auf, welche mit vorzugsweise U-förmigen Ausstanzungen
einer nicht dargestellten Druckplatte zusammenwirken.
Derartige Ausstanzungen sowie die Ausbildung derartiger
Registeranschläge (Anschlag 5) sind an sich bekannt und
bedürfen an dieser Stelle keiner weiteren Erläuterung. Jedem
Anschlag 5 ist eine Stellschraube 6 zugeordnet, welche sich
an einem Träger 8 abstützt, der mit dem zylinderfesten Oberteil
2 der Klemmschiene 1 verbunden ist. Die Stellschraube 6
ist mit einem Gewinde in die Rückseite des zugeordneten
Anschlages 5 eingedreht. Dabei ist insbesondere vorgesehen,
daß eine Stellschraube 6 ein Links- und die andere Stellschraube
6 ein Rechtsgewinde aufweist, wobei die Beträge der
Gewindesteigung gleich sind. So ergibt ein Verschwenken der
Stellschrauben 6 um den gleichen Winkelbetrag ein entsprechendes
Bewegen der Anschläge 5 um betragsmäßig die gleiche
Strecke und in unterschiedliche Richtungen. Die Anschläge 5
sind in entsprechenden Führungen im Oberteil 2 gelagert und
können sich spielfrei in den entsprechenden Richtungen bewegen.
Den Anschlägen 5 sind ferner Federn 7 zugeordnet, vermittels
denen die Anschläge 5 spielfrei gegenüber den Stellschrauben
6 bewegt werden.At a distance from each other, the clamping rail 1 has two stops
5, which with preferably U-shaped punchings
cooperate with a printing plate, not shown.
Such punchings and the formation of such
Register stops (stop 5) are known per se and
need no further explanation at this point. Each
Stop 5 is assigned an adjusting
An den den Anschlägen 5 abgewandten Enden der Stellschrauben
6 weisen diese Hebel 9 auf, welche am schwenkbaren Ende
gelenkig mit einer Koppelstange 10 als Betätigungseinrichtung
verbunden sind. Die Koppelstange 10 erstreckt sich über den
Abstand der Anschläge 5 an der Rückseite der Klemmschiene 1.At the ends of the set screws facing away from the stops 5
6 have this
Figur 2 zeigt, daß den beiden Enden der Koppelstange 10
jeweils ein federnder Anschlag 11 zugeordnet ist, der aus
einem beweglichen Bolzen besteht, der mittels einem Federelement
in Anlage an der Koppelstange 10 gehalten wird. Der
Koppelstange 10 ist ferner ein Stellmittel 12 zugeordnet,
vermittels dem die Koppelstange um einen definierten Wegbetrag
bewegt werden kann. Das Stellmittel 12 kann als eine
Stellschraube, ein elektrisch ansteuerbarer Stellantrieb oder
eine weitere Stellschraube ausgebildet sein. Durch die Koppelstange
10 überträgt sich die Betätigung einer Stellschraube
6 direkt auch auf die andere Stellschraube 6, wobei sich
entsprechend dem Gewindesinn sowie der Gewindesteigung das
entsprechende Verschränken der Druckplatte im geöffneten
Klemmspalt 4 ergibt.Figure 2 shows that the two ends of the coupling rod 10th
in each case a
Gemäß einer hier nicht gezeigten Ausführungsform der Erfindung
kann der Koppelstange 10 bzw. einer Stellschraube 6 auch
eine Arretiervorrichtung in Form einer Klemmeinrichtung oder
dergleichen zugeordnet sein, so daß eine einmal vorgenommene
Einstellung des Registers (Schrägregisters) auch nach dem
Öffnen des Klemmspaltes 4 erhalten bleibt. According to an embodiment of the invention, not shown here
the
- 11
- Klemmschieneclamping rail
- 22
- Oberteil (Klemmschiene 1)Upper part (clamping rail 1)
- 33
- Unterteil (Klemmschiene 1)Lower part (clamping rail 1)
- 44
-
Klemmspalt (Oberteil 2, Unterteil 3)Clamping gap (
upper part 2, lower part 3) - 55
- Anschlag (Registeranschlag)Stop (register stop)
- 66
- Stellschraubescrew
- 77
- Federfeather
- 88th
- Träger (Oberteil 2)Straps (top part 2)
- 99
- Hebel (Stellschraube 6)Lever (set screw 6)
- 1010
- Koppelstange (Betätigungseinrichtung)Coupling rod (actuating device)
- 1111
- federnder Anschlagspring stop
- 1212
-
Stellmittel (Koppelstange 10; Stellschraube
6)Adjusting means (
coupling rod 10; adjusting screw 6)
Claims (11)
- Device for tilting printing plates on the forme cylinders of printing presses, particularly offset sheet printing presses, consisting of a clamping rail for fixing a printing plate as well as stops arranged spaced from one another axially and movable in the peripheral direction of the plate cylinder, which cooperate with one edge of the printing plate, wherein adjusting screws are fitted to the stops, characterised In that an actuation unit (10, 12) is provided acting in common on the adjusting screws (6) and thereby moving the stops (5) via differing paths in the peripheral direction.
- Device according to Claim 1, characterised in that the adjusting screws (6) have different threads.
- Device according to Claim 2, characterised in that the adjusting screws (6) have the same thread pitches and different thread senses.
- Device according to Claim 2, characterised in that the adjusting screws (6) have the same thread sense and differing thread pitches.
- Device according to Claim 1, characterised in that the adjusting screws (6) have the same thread sense and the same thread pitches.
- Device according to one of the preceding Claims, characterised in that the actuation device (10, 12) fitted to the adjusting screws (6) Is constructed as a link rod (10) which is pivotally connected with levers (9) fitted to the adjusting screws (6).
- Device according to Claims 1, 2, 3, 4 or 6, characterised in that the levers (9) fitted on the adjusting screws (6) have the same length.
- Device according to Claim 5 and 6, characterised in that the levers (9) fitled to the adjusting screws (6) have differing length.
- Device according to Claim 6, 7 or 8, characterised in that fitted to the ends of the link rod (10) are sprung stops (11) by means of which the link rod (10) is maintained in a null position.
- Device according to Claim 9, characterised in that an adjusting means (12) is fitted to the link rod (10).
- Device according to Claim 9 or 10, characterised in that fitted to the link rod (10) is a stop mechanism by means of which the link rod (10) can be held in one position.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE29902844U | 1999-02-18 | ||
| DE29902844U DE29902844U1 (en) | 1999-02-18 | 1999-02-18 | Device for setting printing plates on the forme cylinder of printing machines |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1029670A1 EP1029670A1 (en) | 2000-08-23 |
| EP1029670B1 true EP1029670B1 (en) | 2003-06-11 |
Family
ID=8069545
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP00102665A Expired - Lifetime EP1029670B1 (en) | 1999-02-18 | 2000-02-09 | Device for tilting printing plates on the plate cylinder of printing machines |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP1029670B1 (en) |
| AT (1) | ATE242694T1 (en) |
| DE (2) | DE29902844U1 (en) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| DE9215069U1 (en) * | 1992-11-05 | 1992-12-17 | MAN Roland Druckmaschinen AG, 6050 Offenbach | Device for the correct registration of printing plates on the plate cylinder of printing machines |
| DE4306237A1 (en) * | 1993-02-27 | 1994-09-01 | Heidelberger Druckmasch Ag | Device for setting the inclined register in a clamping device for clamping printing plates in an offset printing machine |
-
1999
- 1999-02-18 DE DE29902844U patent/DE29902844U1/en not_active Expired - Lifetime
-
2000
- 2000-02-09 EP EP00102665A patent/EP1029670B1/en not_active Expired - Lifetime
- 2000-02-09 DE DE50002508T patent/DE50002508D1/en not_active Expired - Lifetime
- 2000-02-09 AT AT00102665T patent/ATE242694T1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| EP1029670A1 (en) | 2000-08-23 |
| ATE242694T1 (en) | 2003-06-15 |
| DE29902844U1 (en) | 1999-06-17 |
| DE50002508D1 (en) | 2003-07-17 |
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