EP0579941B1 - Device for securing and changing the position of a cylinder covering - Google Patents

Device for securing and changing the position of a cylinder covering Download PDF

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Publication number
EP0579941B1
EP0579941B1 EP93108923A EP93108923A EP0579941B1 EP 0579941 B1 EP0579941 B1 EP 0579941B1 EP 93108923 A EP93108923 A EP 93108923A EP 93108923 A EP93108923 A EP 93108923A EP 0579941 B1 EP0579941 B1 EP 0579941B1
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EP
European Patent Office
Prior art keywords
cylinder
changing
attaching
tensioning
cylinder packing
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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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EP93108923A
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German (de)
French (fr)
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EP0579941A1 (en
Inventor
Willi Becker
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Heidelberger Druckmaschinen AG
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Heidelberger Druckmaschinen AG
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Publication of EP0579941A1 publication Critical patent/EP0579941A1/en
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    • 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
    • B41F27/125—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 on a curvilinear path, e.g. by winding on a roll

Definitions

  • the invention relates to a device for Attachment and to change the position of a cylinder lift a printing unit cylinder with an axially parallel pit Rotary printing machine with at least one clamping spindle is provided for tensioning a cylinder lift.
  • DE 40 11 303 A1 describes a device for fastening a Blanket on a blanket cylinder of an offset printing machine known. With a locking screw, an upper and a lower rail fixed in a rubber cylinder. Between the two rails are V-shaped depressions, in which the ends of a rubber blanket are picked up.
  • a disadvantage of this device from the prior art is the fact that old this no shift of the position Blanket on the surface of the blanket is feasible.
  • JP 58-177360 shows a device for tensioning the rubber blanket for Printing machines.
  • this device there are two in one printing unit cylinder Tensioned spindles with one actuator each from worm wheel and worm Mistake.
  • the disadvantage of this device is that the Blanket and back and forth between the two tensioning points when changing documents must be brought here, which is time consuming.
  • the invention is based on the object to extend the lifespan of a cylinder lift, accompanied by an increase the ease of use of a device for fastening and tensioning a Cylinder lift.
  • An advantage of the solution according to the invention is the fact that the clamping spindles can be operated via a common actuator. Now is not a gradual one Moving to the front and rear blanket tensioning points required more. Thereby the set-up time can be changed when changing the cylinder lift and when changing the documents reduce considerably due to the pressure setting. In addition there is now the Possibility of closing the position of the cylinder lift on the jacket of the printing unit cylinder vary. This can exposed to heavy mechanical stress Channel inlet edge of the cylinder lift in the area of Cylinder channel, i.e. a pressure-free space will. This extends the service life considerably the cylinder lift.
  • lying thought is provided on at least one of the Clamping spindles by clamping in the circumferential direction to arrange variably fixable tooth segment. Let it through the clamping paths adapt to individual cylinder lifts. Furthermore, the position of the cylinder lift on the Adjust the circumference of the printing unit cylinder using adjusting screws at least one of the clamping spindles can be influenced. This offers the possibility of relative to at least one of the tension spindles to the cylinder lift so that after tensioning again the cylinder lift this relative to the printing unit cylinder shifted to its original position in the circumferential direction is. In addition, at least one of the clamping spindles is on arranged the scale indicating torsion.
  • a fork actuators executed in a tooth segment added.
  • An actuator designed as an adjusting screw is rotatably received in a bearing pin and moves one Set bolts on a circular path around the center of the tension shaft.
  • This can be achieved in an advantageous manner that in Dependence on the thread pitch of the set screw a very sensitive displacement of the cylinder lift is possible, with which very small displacements of the cylinder lift on the Jacket of the printing unit cylinder are possible.
  • the strong areas exposed to mechanical stress Cylinder lift can now be mechanically uncritical Areas are relocated, which increases the service life of the Can extend cylinder lift significantly.
  • the adjusting bolt in the rotationally fixed at least one of the clamping spindles Scaling body engages. This ensures that the according to the rotation of the set screw in the Tensioning spindle initiated rotation on the scaling body is readable while the actuator receiving Tooth segment remains at rest.
  • the invention is based on a drawing in detail explained.
  • Fig. 1 shows the side view of an actuator with Worm wheels on the printing unit cylinder.
  • a printing unit cylinder 1 takes on each of its faces two clamping spindles 3 and 4. On the clamping spindles 3, 4 a worm wheel 6 is arranged in the form fit, which has a collar 5 on the front of the Printing unit cylinder 1 is present.
  • Bearing block 12 has an actuating shaft 7. At this there is a snail 9 with the two Worm wheels 6 of the clamping spindle 3 and 4 are engaged.
  • At the upper part of the adjusting shaft 7 there is an adjusting head 8 executed by which the actuating shaft 7 is moved.
  • the lower end of the control shaft 7, the shaft journal 10, is in a bore 11 of the cylinder pin 2 rotatably received. Is located between the screw 9 and the bearing block 12 an axial bearing 13 through which to actuate the Actuating shaft 7 required torque is reduced.
  • Fig. 1a can also be seen that the Worm gears 6 over feather keys on the ends of the Tensioning spindles 3, 4 are added.
  • Fig. 2 shows one on the front side of the printing unit cylinder recorded actuator with toothed segment.
  • a 6 instead of a worm wheel Tooth segment 18 is provided on the clamping spindle 4.
  • a Clamping screw 19 is its positive connection with the clamping spindle 4 can be canceled; the adhesion between Actuator and clamping spindle 4 is therefore closed at this point interrupt.
  • Fig. 2a it can be seen that in this Variant of the subject matter of the invention instead of a federal 5 Scaling body 16 in a form-fitting manner with the clamping spindle 4 a key 17 is connected. The zero point on the scale the scaling body 16 is opposite a notch on the toothed segment 18.
  • an opening 15 for attaching a tool On the clamping spindle 4 is in addition, an opening 15 for attaching a tool.
  • Fig. 3 a tooth segment is shown, which several Actuators.
  • a tooth segment 18 becomes analog to the explanations in Figures 1 and 2 Actuating shaft 7 actuated.
  • the control shaft 7 is on the one hand in Bearing block 12, on the other hand with the shaft journal 10 in the Bore 11 of the cylinder pin 2 stored.
  • the tooth segment 18 is configured in this variant such that a Set screw 20 rotatably received in a bearing pin 22 is.
  • the set screw 20 passes through this bearing pin and moves an adjusting bolt 23 on one when twisted Circular path.
  • the adjusting pin 23 is in turn in the Scaling body 16 rotatably added.
  • Fig. 4 shows a top view of this variant.
  • the Tooth segment 18 is on the set screw side with a fork 21 provided which the rotatably mounted bearing pin 22nd bridged.
  • the scaler body 16 is in dashed lines Representation of the adjusting bolts 23 added; Of the Scaller body 16 is in turn - analogous to Execution in Fig. 2a - with the clamping spindle 4 over a Key 17 positively connected. From the in Fig. 5th shown side view of the toothed segment 18 can be seen that when the screw 20 is rotated in Bearing pin 22 of the adjusting pin 23, which is in the scaler body 16 is stored, this and the key 17, the Clamping spindle 4 twisted.
  • Fig. 6 shows a rotation generated by an adjusting screw the clamping spindle 4.
  • the behind the toothed segment 18, which is held in position by the screw 9, lying scaling body 16 is in one - compared with its rotational position in Fig. 3 - rotated position.
  • the rotation of the clamping spindle 4 starts a comparison of the rotational position of the parallel key 17 in FIGS. 3 and 6 out.
  • the set screw 20 in the fork 21 of the Tooth segment 18 movable.
  • Figures 7 and 8 show different positions of a Cylinder lift on the jacket of a printing unit cylinder.

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  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
  • Rotary Presses (AREA)

Description

Die Erfindung bezieht sich auf eine Vorrichtung zur Befestigung und zur Lageänderung eines Zylinderaufzuges an einem Druckwerkzylinder mit achsparalleler Grube einer Rotationsdruckmaschine, bei der mindestens eine Spannspindel zum Spannen eines Zylinderaufzuges vorgesehen ist.The invention relates to a device for Attachment and to change the position of a cylinder lift a printing unit cylinder with an axially parallel pit Rotary printing machine with at least one clamping spindle is provided for tensioning a cylinder lift.

Aus DE 40 11 303 A1 ist eine Vorrichtung zum Befestigen eines Gummituchs auf einem Gummizylinder einer Offsetdruckmaschine bekannt. Durch eine Sicherungsschraube werden eine Ober- und eine Unterschiene in einem Gummizylinder fixiert. Zwischen den beiden Schienen befinden sich V-förmige Vertiefungen, in denen die Enden eines Gummituches aufgenommen werden. Nachteilig bei dieser Vorrichtung aus den Stand der Technik ist der Umstand, daß alt dieser keine Lageverschiebung des Gummituches auf der Oberfläche des Gummizylinders durchführbar ist.DE 40 11 303 A1 describes a device for fastening a Blanket on a blanket cylinder of an offset printing machine known. With a locking screw, an upper and a lower rail fixed in a rubber cylinder. Between the two rails are V-shaped depressions, in which the ends of a rubber blanket are picked up. A disadvantage of this device from the prior art is the fact that old this no shift of the position Blanket on the surface of the blanket is feasible.

Die DE 29 10 880 C2 hingegen offenbart eine Gummituchspannvorrichtung, bei der zwei Spannspindeln geradverzahnte Ringzähne umfassen, die in Ringzähne einer Zahnstage eingreifen, welche ihrerseits von einem Gewindebolzen aufgenommen ist. Der Gewindebolzen ist im Grubengrund der Grube des Gummituchzylinders angeordnet und in einem Gewinde bewegbar. Die Nachteile dieser Gummituchspannvorrichtung sind darin zu sehen, daß nur ein eingeschränkter Spannweg zur Verfügung steht. Ferner ist eine Lagekorrektur der Position des Gummituches auf dem Gummituchzylinder nicht gegeben. Durch die Geradverzahnung der Ringzähne ist nur eine punktförmige Flankenanlage möglich, was sehr hohe Hertz'sche Pressungen nach sich zieht, welche zu vorzeitigem Verschleiß führen können. Ferner ist die Schwergängigkeit dieser Gummituchspannvorrichtung ungünstig, da bei Betätigung sowohl Zähnreibung als auch Gewindereibung überwunden werden müsen.DE 29 10 880 C2, however, discloses one Blanket tensioner with two tension spindles straight toothed ring teeth include one in the ring teeth Tooth days intervene, which in turn by one Threaded bolt is added. The threaded bolt is in the Pit base of the pit of the blanket cylinder arranged and movable in a thread. The disadvantages of this Blanket tensioning device can be seen in the fact that only one limited span is available. Furthermore, one Correction of the position of the blanket on the Blanket cylinder not given. Through the straight toothing the ring teeth is only a punctiform flank possible, which entails very high Hertzian pressures, which can lead to premature wear. Further is the stiffness of this blanket tensioner unfavorable, since both tooth friction and thread friction are overcome when actuated will have to.

Die JP 58-177360 zeigt eine Vorrichtung zum Spannen des Gummituches für Druckmaschinen. Bei dieser Vorrichtung sind zwei in einem Druckwerkszylinder aufgenommene Spannspindeln mit je einem Stelltrieb aus Schneckenrad und Schnecke versehen. Ungünstig bei dieser Vorrichtung istjedoch der Umstand, daß beim Gummituch- und beim Unterlagenwechsel zwischen den beiden Spannstellen hin- und hergefahren werden muß, was zeitraubend ist.JP 58-177360 shows a device for tensioning the rubber blanket for Printing machines. In this device there are two in one printing unit cylinder Tensioned spindles with one actuator each from worm wheel and worm Mistake. However, the disadvantage of this device is that the Blanket and back and forth between the two tensioning points when changing documents must be brought here, which is time consuming.

Ausgehend vom skizzierten Stand der Technik liegt der Erfindung die Aufgabe zugrunde, die Lebensdauer eines Zylinderaufzuges zu verlängern, einhergehend mit einer Erhöhung des Bedienungskomforts einer Vorrichtung zum Befestigen und Spannen eines Zylinderaufzuges.Starting from the outlined prior art, the invention is based on the object to extend the lifespan of a cylinder lift, accompanied by an increase the ease of use of a device for fastening and tensioning a Cylinder lift.

Erfindungsgemäß wird die Aufgabe durch die Merkmale des Anspruchs 1 gelöst. Vorteilhafte Ausgestaltungen ergeben sich aus den abhängigen Ansprüchen 2 - 11.According to the invention the object is achieved by the features of claim 1. Advantageous configurations result from the dependent claims 2-11.

Vorteilhaft bei der erfindungsgemäßen Lösung ist der Umstand, daß die Spannspindeln über einen gemeinsamen Stelltrieb bedient werden. Nunmehr ist kein schrittweises Anfahren der vorderen und hinteren Gummituchspannstelle mehr erforderlich. Dadurch läßt sich die Rüstzeit beim Wechseln des Zylinderaufzuges und beim Unterlagenwechsel wegen der Pressungseinstellung beträchtlich reduzieren. Daneben besteht nunmehr die Möglichkeit, die Lage des Zylinderaufzuges aufdem Mantel des Druckwerkzylinders zu variieren. Dadurch kann die starken mechanischen Beanspruchungen ausgesetzte Kanaleinlaufkante des Zylinderaufzuges in den Bereich des Zylinderkanals, also einen druckfreien Raum, verlagert werden. Dies hat eine erhebliche Verlängerung der Standzeit des Zylinderaufzuges zur Folge.An advantage of the solution according to the invention is the fact that the clamping spindles can be operated via a common actuator. Now is not a gradual one Moving to the front and rear blanket tensioning points required more. Thereby the set-up time can be changed when changing the cylinder lift and when changing the documents reduce considerably due to the pressure setting. In addition there is now the Possibility of closing the position of the cylinder lift on the jacket of the printing unit cylinder vary. This can exposed to heavy mechanical stress Channel inlet edge of the cylinder lift in the area of Cylinder channel, i.e. a pressure-free space will. This extends the service life considerably the cylinder lift.

In weiterer Ausgestaltung des der Erfindung zugrunde liegenden Gedankens ist vorgesehen, auf mindestens einer der Spannspindeln ein durch eine Klemmung in Umfangsrichtung variabel fixierbares Zahnsegment anzuordnen. Dadurch lassen sich die Spannwege individuellen Zylinderaufzügen anpassen. Weiterhin ist die Position des Zylinderaufzuges auf dem Umfang des Druckwerkzylinders durch Stellschrauben an mindestens einer der Spannspindeln beeinflußbar. Dies bietet die Möglichkeit, mindestens eine der Spannspindeln relativ zum Zylinderaufzug so zu verdrehen, daß nach erneutem Spannen des Zylinderaufzuges dieser auf dem Druckwerkzylinder relativ zu seiner ursprünglichen Lage in Umfangrichtung verschoben ist. Außerdem ist auf mindestens einer der Spannspindeln ein die Verdrehung anzeigender Skalierkörper angeordnet.In a further embodiment of the invention lying thought is provided on at least one of the Clamping spindles by clamping in the circumferential direction To arrange variably fixable tooth segment. Let it through the clamping paths adapt to individual cylinder lifts. Furthermore, the position of the cylinder lift on the Adjust the circumference of the printing unit cylinder using adjusting screws at least one of the clamping spindles can be influenced. This offers the possibility of relative to at least one of the tension spindles to the cylinder lift so that after tensioning again the cylinder lift this relative to the printing unit cylinder shifted to its original position in the circumferential direction is. In addition, at least one of the clamping spindles is on arranged the scale indicating torsion.

In weiterer Ausbildung des der Erfindung zugrunde liegenden Gedankens weist mindestens eine der Spannspindeln im stirnseitigen Bereich des Druckwerkzylinders eine ein Ansetzen eines Werkzeuges ermöglichende Öffnung auf. Somit ist es dem Drucker möglich, nach Entspannung des Gummituches durch den Stelltrieb und Lösen der Zahnsegmentklemmung an einer der Spannspindeln, diese um einen an dem Skalierkörper ablesbaren Stellweg zu verdrehen.In a further development of the basis of the invention Thought has at least one of the clamping spindles in the front area of the printing unit cylinder one Opening of a tool enables. Consequently the printer is able to relax the blanket through the actuator and releasing the toothed segment clamp one of the clamping spindles, this one on the scaling body to read the readable travel.

In einer weiteren Variante des Erfindungsgegenstandes sind in einer in einem Zahnsegment ausgeführten Gabel Stellglieder aufgenommen. Ein als Stellschraube ausgeführtes Stellglied ist in einem Lagerbolzen drehbar aufgenommen und bewegt einen Stellbolzen auf einer Kreisbahn um die Mitte der Spannwelle. Dadurch kann in vorteilhalfter Weise erreicht werden, daß in Abhängigkeit der Gewindesteigung der Stellschraube eine sehr feinfühlige Verschiebung des Zylinderaufzuges möglich ist, womit sehr kleine Verschiebungen des Zylinderaufzuges auf dem Mantel des Druckwerkzylinders möglich sind. Die starken mechanischen Beanspruchungen ausgesetzten Bereiche des Zylinderaufzuges können nunmehr in mechanisch unkritische Bereiche verlagert werden, wodurch sich die Standzeit des Zylinderaufzuges erheblich verlängern läßt. Es ist vorgesehen, daß der Stellbolzen in den drehfest auf mindestens einer der Spannspindeln aufgenommenen Skalierkörper eingreift. Dadurch ist sichergestellt, daß die entsprechend der Verdrehung der Stellschraube in die Spannspindel eingeleitete Verdrehung auf den Skalierkörper ablesbar ist, während das die Stellglieder aufnehmende Zahnsegment in Ruhe bleibt.In a further variant of the subject matter of the invention, in a fork actuators executed in a tooth segment added. An actuator designed as an adjusting screw is rotatably received in a bearing pin and moves one Set bolts on a circular path around the center of the tension shaft. This can be achieved in an advantageous manner that in Dependence on the thread pitch of the set screw a very sensitive displacement of the cylinder lift is possible, with which very small displacements of the cylinder lift on the Jacket of the printing unit cylinder are possible. The strong areas exposed to mechanical stress Cylinder lift can now be mechanically uncritical Areas are relocated, which increases the service life of the Can extend cylinder lift significantly. It is provided that the adjusting bolt in the rotationally fixed at least one of the clamping spindles Scaling body engages. This ensures that the according to the rotation of the set screw in the Tensioning spindle initiated rotation on the scaling body is readable while the actuator receiving Tooth segment remains at rest.

Die Erfindung sei anhand einer Zeichnung im einzelnen erläutert.The invention is based on a drawing in detail explained.

Es zeigt:

Fig. 1
eine Seitenansicht eines Stelltriebs mit Schneckenrädern am Druckwerkzylinder,
Fig. 1a
die zugehörige Draufsicht;
Fig. 2
einen an der Stirnseite des Druckwerkzylinders aufgenommenen Stelltrieb mit Zahnsegment,
Fig. 2a
eine Draufsicht auf diesen;
Fig. 3
ein Zahnsegment, welches Stellglieder aufnimmt,
Fig. 4
eine Draufsicht auf Stelltrieb und am Zahnsegment befestigte Stellglieder,
Fig. 5
eine Seitenansicht des Zahnsegmentes,
Fig. 6
eine über eine Stellschraube erzeugte Verdrehung einer der Spannspindeln,
Fig. 7, 8
verschiedene Positionen des Zylinderaufzuges auf dem Mantel eines Druckwerkzylinders.
It shows:
Fig. 1
a side view of an actuator with worm wheels on the printing unit cylinder,
Fig. 1a
the associated top view;
Fig. 2
an actuator with toothed segment received on the front side of the printing unit cylinder,
Fig. 2a
a top view of this;
Fig. 3
a tooth segment, which receives actuators,
Fig. 4
a plan view of the actuator and actuators attached to the toothed segment,
Fig. 5
a side view of the tooth segment,
Fig. 6
a rotation of one of the clamping spindles generated by an adjusting screw,
7, 8
different positions of the cylinder lift on the jacket of a printing unit cylinder.

Fig. 1 zeigt die Seitenansicht eines Stelltriebes mit Schneckenrädern am Druckwerkzylinder.Fig. 1 shows the side view of an actuator with Worm wheels on the printing unit cylinder.

Ein Druckwerkzylinder 1 nimmt an seinen Stirnseiten jeweils zwei Spannspindeln 3 und 4 auf. Auf den Spannspindeln 3, 4 ist im Formschluß jeweils ein Schneckenrad 6 angeordnet, welches über einen Bund 5 an der Stirnseite des Druckwerkzylinders 1 anliegt. In einem über Schrauben 14 an der Stirnseite des Druckwerkzylinders 1 befestigten Lagerbock 12 ist eine Stellwelle 7 gelagert. An dieser befindet sich eine Schnecke 9, die mit den beiden Schneckenrädern 6 der Spannspindel 3 und 4 in Eingriff steht. Am oberen Teil der Stellwelle 7 ist ein Stellkopf 8 ausgeführt, durch welchen die Stellwelle 7 bewegt wird. Das untere Ende der Stellwelle 7, der Wellenzapfen 10, ist in einer Bohrung 11 des Zylinderzapfens 2 drehbar aufgenommen. Zwischen der Schnecke 9 und dem Lagerbock 12 befindet sich ein Axiallager 13, durch welches das zur Betätigung der Stellwelle 7 erforderliche Drehmoment herabgesetzt wird.A printing unit cylinder 1 takes on each of its faces two clamping spindles 3 and 4. On the clamping spindles 3, 4 a worm wheel 6 is arranged in the form fit, which has a collar 5 on the front of the Printing unit cylinder 1 is present. In a via screws 14 attached to the front of the printing unit cylinder 1 Bearing block 12 has an actuating shaft 7. At this there is a snail 9 with the two Worm wheels 6 of the clamping spindle 3 and 4 are engaged. At the upper part of the adjusting shaft 7 there is an adjusting head 8 executed by which the actuating shaft 7 is moved. The lower end of the control shaft 7, the shaft journal 10, is in a bore 11 of the cylinder pin 2 rotatably received. Is located between the screw 9 and the bearing block 12 an axial bearing 13 through which to actuate the Actuating shaft 7 required torque is reduced.

In Fig. 1a ist darüber hinaus noch zu erkennen, daß die Schneckenräder 6 über Paßfedern auf den Enden der Spannspindeln 3, 4 aufgenommen sind.In Fig. 1a can also be seen that the Worm gears 6 over feather keys on the ends of the Tensioning spindles 3, 4 are added.

Fig. 2 zeigt einen an der Stirnseite des Druckwerkzylinders aufgenommenen Stelltrieb mit Zahnsegment. In dieser Variante ist anstelle eines Schneckenrades 6 ein Zahnsegment 18 auf der Spannspindel 4 vorgesehen. Durch eine Klemmschraube 19 ist dessen kraftschlüssige Verbindung mit der Spannspindel 4 aufhebbar; der Kraftschluß zwischen Stelltrieb und Spannspindel 4 ist mithin an dieser Stelle zu unterbrechen. In Fig. 2a ist ersichtlich, daß bei dieser Variante des Erfindungsgegenstandes statt eines Bundes 5 ein Skalierkörper 16 formschlussig mit der Spannspindel 4 über eine Paßfeder 17 verbunden ist. Der Nullpunkt der Skala auf dem Skalierkörper 16 befindet sich gegenüber einer Einkerbung auf dem Zahnsegment 18. Auf der Spannspindel 4 befindet sich darüber hinaus eine Öffnung 15 zum Ansetzen eines Werkzeuges.Fig. 2 shows one on the front side of the printing unit cylinder recorded actuator with toothed segment. In this Variant is a 6 instead of a worm wheel Tooth segment 18 is provided on the clamping spindle 4. By a Clamping screw 19 is its positive connection with the clamping spindle 4 can be canceled; the adhesion between Actuator and clamping spindle 4 is therefore closed at this point interrupt. In Fig. 2a it can be seen that in this Variant of the subject matter of the invention instead of a federal 5 Scaling body 16 in a form-fitting manner with the clamping spindle 4 a key 17 is connected. The zero point on the scale the scaling body 16 is opposite a notch on the toothed segment 18. On the clamping spindle 4 is in addition, an opening 15 for attaching a tool.

Bei Maschinenstillstand betätigt der Drucker zunächst über den Stellkopf 8 des Stelltriebes die Spannspindel 3 und 4 und entspannt einen Zylinderaufzug. Nach Lösen der Klemmverbindung an der Klemmschraube 19 kann die Spannspindel 4 über ein an der Öffnung 15 angreifendes Werkzeug in die eine oder die andere Umfangsrichtung relativ zum Zahnsegment 18 verdreht werden. Das Zahnsegment 18 verbleibt während dieser Operation durch die Selbsthemmung zwischen Schnecke 9 und der Verzahnung des Zahnsegmentes 18 in Ruhelage und kann daher als Bezugspunkt zur quantativen Bewertung des Verdrehweges der Spannspindel 4 herangezogen werden. Nach der entsprechenden Verdrehung der Spannspindel 4 wird die kraftschlüssige Verbindung zwischen Spannspindel 4 und dem Zahnsegment 18 durch Anziehen der Klemmschraube 19 wiederhergestellt. Anschließend erfolgt ein Spannen eines Zylinderaufzuges durch Verdrehen der Stellwelle 7 über den Stellkopf 8. Nunmehr nimmt ein Zylinderaufzug eine andere Position in Umfangsrichtung auf dem Druckwerkzylinder 1 bezogen auf seine ursprüngliche Position ein.When the machine is at a standstill, press the the adjusting head 8 of the actuator, the clamping spindle 3 and 4 and relaxes a cylinder lift. After loosening the Clamping connection on the clamping screw 19 can Clamping spindle 4 engages with an opening 15 Tool in one or the other circumferential direction relative be rotated to the toothed segment 18. The tooth segment 18 remains during this operation due to self-locking between worm 9 and the toothing of tooth segment 18 at rest and can therefore serve as a reference point for quantitative Assessment of the displacement of the clamping spindle 4 is used will. After the corresponding rotation of the clamping spindle 4 the non-positive connection between the clamping spindle 4 and the toothed segment 18 by tightening the clamping screw 19 restored. Then a tensioning takes place Cylinder lift by turning the control shaft 7 over the Adjusting head 8. Now one cylinder lift takes another Position in the circumferential direction on the printing unit cylinder 1 based on its original position.

In Fig. 3 ist ein Zahnsegment abgebildet, welches mehrere Stellglieder aufnimmt. In Fig. 3 a tooth segment is shown, which several Actuators.

In dieser Variante wird ein Zahnsegment 18 über eine analog zu den Ausführungen in Figuren 1 und 2 gelagerten Stellwelle 7 betätigt. Die Stellwelle 7 ist einerseits im Lagerbock 12, andererseits mit dem Wellenzapfen 10 in der Bohrung 11 des Zylinderzapfens 2 gelagert. Das Zahnsegment 18 ist in dieser Variante derart konfiguriert, daß eine Stellschraube 20 in einem Lagerbolzen 22 drehbar aufgenommen ist. Die Stellschraube 20 durchsetzt diesen Lagerbolzen und bewegt bei Verdrehung einen Stellbolzen 23 auf einer Kreisbahn. Der Stellbolzen 23 ist seinerseits in dem Skalierkörper 16 drehbar aufgenommen.In this variant, a tooth segment 18 becomes analog to the explanations in Figures 1 and 2 Actuating shaft 7 actuated. The control shaft 7 is on the one hand in Bearing block 12, on the other hand with the shaft journal 10 in the Bore 11 of the cylinder pin 2 stored. The tooth segment 18 is configured in this variant such that a Set screw 20 rotatably received in a bearing pin 22 is. The set screw 20 passes through this bearing pin and moves an adjusting bolt 23 on one when twisted Circular path. The adjusting pin 23 is in turn in the Scaling body 16 rotatably added.

Fig. 4 zeigt eine Draufsicht auf diese Variante. Das Zahnsegment 18 ist stellschraubenseitig mit einer Gabel 21 versehen, welche der drehbar gelagerte Lagerbolzen 22 überbrückt. Im Skallerkörper 16 ist in gestrichelter Darstellung der Stellbolzen 23 aufgenommen; Der Skallerkörper 16 ist seinerseits wiederum - analog zur Ausführung in Fig. 2a - mit der Spannspindel 4 über eine Paßfeder 17 formschlüssig verbunden. Aus der in Fig. 5 dargestellten Seitenansicht des Zahnsegments 18 ist ersichtlich, daß bei Verdrehung der Stellschraube 20 im Lagerbolzen 22 der Stellbolzen 23, der im Skallerkörper 16 gelagert ist, diesen und über die Paßfeder 17, die Spannspindel 4 verdreht.Fig. 4 shows a top view of this variant. The Tooth segment 18 is on the set screw side with a fork 21 provided which the rotatably mounted bearing pin 22nd bridged. In the scaler body 16 is in dashed lines Representation of the adjusting bolts 23 added; Of the Scaller body 16 is in turn - analogous to Execution in Fig. 2a - with the clamping spindle 4 over a Key 17 positively connected. From the in Fig. 5th shown side view of the toothed segment 18 can be seen that when the screw 20 is rotated in Bearing pin 22 of the adjusting pin 23, which is in the scaler body 16 is stored, this and the key 17, the Clamping spindle 4 twisted.

Fig. 6 zeigt eine über eine Stellschraube erzeugte Verdrehung der Spannspindel 4. Der hinter dem Zahnsegment 18, welches durch die Schnecke 9 in seiner Position gehalten wird, liegende Skalierkörper 16 ist in einer - verglichen mit seiner Drehlage in Fig. 3 - verdrehten Lage dargestellt. Da der Skalierkörper 16 mit der Spannspindel 4 formschlüssig verbunden ist, geht die Verdrehung der Spannspindel 4 aus einem Vergleich der Drehlage der Paßfeder 17 in den Figuren 3 und 6 hervor. Um die bei der Verdrehung des Skalierkörpers 16 auftretende Schwenkbewegung des Stellbolzens 23 auszugleichen, ist die Stellschraube 20 in der Gabel 21 des Zahnsegmentes 18 bewegbar.Fig. 6 shows a rotation generated by an adjusting screw the clamping spindle 4. The behind the toothed segment 18, which is held in position by the screw 9, lying scaling body 16 is in one - compared with its rotational position in Fig. 3 - rotated position. There the scaling body 16 with the clamping spindle 4 form-fitting is connected, the rotation of the clamping spindle 4 starts a comparison of the rotational position of the parallel key 17 in FIGS. 3 and 6 out. In order to avoid the rotation of the scaling body 16 pivoting movement of the adjusting bolt 23 to compensate, the set screw 20 in the fork 21 of the Tooth segment 18 movable.

Es sei darauf verwiesen, daß durchaus beide der Spannspindeln 3 und 4 mit einem in Umfangsrichtung variabel fixierbaren Zahnsegment 18 verbunden werden können; sei es mit der in Figuren 2 und 2a dargestellten Variante, sei es mit der Variante, die in den Figuren 3, 4, 5 und 6 wiedergegeben ist. Dadurch vergrößert sich der zur Verschiebung des Zylinderaufzuges auf dem Mantel des Druckwerkzylinders 1 zur Verfügung stehende Bereich.It should be pointed out that both of them Clamping spindles 3 and 4 with a variable in the circumferential direction fixable toothed segment 18 can be connected; be it with the variant shown in Figures 2 and 2a, be it with the variant shown in FIGS. 3, 4, 5 and 6 is reproduced. This increases the Displacement of the cylinder lift on the jacket of the Printing unit cylinder 1 available area.

Die Figuren 7 und 8 zeigen verschiedene Positionen eines Zylinderaufzuges auf dem Mantel eines Druckwerkzylinders.Figures 7 and 8 show different positions of a Cylinder lift on the jacket of a printing unit cylinder.

Durch einen am Druckwerkzylinder 1 ausgeführten Steg 25 wird eine achsparallele Grube des Druckwerkzylinders 1 in zwei Ausnehmungen 28 unterteilt, von denen je eine eine der Spannspindeln 3 und 4 aufnimmt. Auf den Spannspindeln 3 und 4 befindet sich je eine untere Klemmleiste 31, die über Schrauben 27 eine obere Klemmleiste 26 aufnimmt. Zwischen der oberen Klemmleiste 26 und der unteren Klemmleiste 31 werden die Enden eines Zylinderaufzuges 29 aufgenommen. Um das Klemmleistenpaar beim Spannen auf der Spannwelle 3 zu halten, sind die Klemmleisten 31 mit Haltespangen 30 verbunden, welche ihrerseits über Schrauben 32 an den Spannspindeln 3, 4 befestigt sind. In Fig. 7 sind die Spannspindeln 3 und 4 in annähernd symmetrischer Lage zueinander angeordnet, was etwa eine erste Aufspannlage eines neuen Zylinderaufzuges 29 auf der Mantelfläche des Druckwerkzylinders 1 entspricht. Nach einer bestimmten Standzeit kann dann mit Hilfe der erfindungsgemäßen Vorrichtung der Zylinderaufzug 29 bezogen auf seine ursprüngliche, in Fig. 7 wiedergegebene Lage, auf dem Mantel des Drukwerkzylinders 1 verschoben werden. So kann beispielsweise der auf der Spannspindel 4 eingespannte Bereich des Zylinderaufzuges 29 bei Verhärtung oder auftretender Porösität der Kanaleinlaufkante in den Bereich der Ausnehmung 28 verlagert werden, wo die mechanischen Beanspruchungen entfallen. Beispielsweise durch Papierknautscher erzeugte kleine Beschädigungen des Zylinderaufzuges 29 können unter Umständen in nicht druckende Bereiche verlagert werden. Through a web 25 on the printing unit cylinder 1 an axially parallel pit of the printing unit cylinder 1 in two Recesses 28 divided, one each of which Tensioning spindles 3 and 4. On the clamping spindles 3 and 4 there is a lower terminal block 31, which over Screws 27 receives an upper terminal block 26. Between the upper terminal block 26 and the lower terminal block 31 the ends of a cylinder elevator 29 are recorded. Around the pair of terminal strips when tensioning on the tensioning shaft 3 hold, the terminal strips 31 with retaining clips 30th connected, which in turn via screws 32 to the Tensioning spindles 3, 4 are attached. 7 are the Clamping spindles 3 and 4 in an almost symmetrical position arranged to each other, which is about a first clamping position of a new cylinder lift 29 on the outer surface of the Printing unit cylinder 1 corresponds. After a certain Service life can then with the help of the invention Device of the cylinder lift 29 based on his original position shown in Fig. 7, on the jacket of the printing cylinder 1 can be moved. So can for example, the clamped on the clamping spindle 4 Area of the cylinder lift 29 when hardening or occurring porosity of the channel inlet edge in the area the recess 28 are shifted where the mechanical Strains are eliminated. For example, by Paper crumpling caused minor damage to the Cylinder lift 29 can possibly be in non-printing Areas to be relocated.

BEZUGSZEICHENLISTEREFERENCE SIGN LIST

11
DruckwerkzylinderPrinting cylinder
22nd
ZylinderzapfenCylinder journal
33rd
SpannspindelClamping spindle
44th
SpannspindelClamping spindle
55
BundFederation
66
SchneckenradWorm wheel
77
StellwelleControl shaft
88th
StellkopfAdjusting head
99
Schneckeslug
1010th
WellenzapfenShaft journal
1111
Bohrungdrilling
1212th
LagerbockBearing block
1313
AxiallagerThrust bearing
1414
Schraubescrew
1515
Öffnungopening
1616
SkalierkörperScaling body
1717th
Paßfederadjusting spring
1818th
ZahnsegmentTooth segment
1919th
KlemmschraubeClamping screw
2020th
StellschraubeSet screw
2121
Gabelfork
2222
LagerbolzenBearing bolt
2323
StellbolzenAdjusting bolt
2424th
Anschlagattack
2525th
Stegweb
2626
obere Klemmleisteupper terminal block
2727
SpannschraubeClamping screw
2828
AusnehmungRecess
2929
ZylinderaufzugCylinder lift
3030th
HaltespangeRetaining clip
3131
untere Klemmleistelower terminal block
3232
Schraubescrew

Claims (11)

  1. Device for attaching and changing the position of a cylinder packing on a printing unit cylinder with an axially parallel gap of a rotary printing machine, in which tensioning spindles (3, 4) are each provided with a toothing (6, 18) for tensioning the cylinder packing, and a shaft (7) having a further toothing (9) is engaged with the toothing (6) on one of the tensioning spindles, the shaft (7) surrounding a receiver (8) for an adjusting tool on the part facing the gap opening, characterized in that the shaft (7) is engaged with the toothing (6, 18) of another one of the tensioning spindles (3, 4) via the further toothing (9), and in that the tensioning spindles (3, 4) are movable by means of the toothings (6, 18) which are received on the end face of the printing unit cylinder (1) and the further toothing (9) such that the cylinder packing (29) can be tensioned in the circumferential direction simultaneously at its leading edge and trailing edge and the position of the cylinder packing (29) on the printing unit cylinder (1) can also be adjusted in a defined manner by means of actuators (16, 19, 20, 22, 23) on at least one of the tensioning spindles (3, 4).
  2. Device for attaching and changing the position of a cylinder packing according to Claim 1, characterized in that one of the actuators in the form of a scale body (16), which displays the rotation, is arranged on the at least one tensioning spindle (3, 4).
  3. Device for attaching and changing the position of a cylinder packing according to one of Claims 1 - 2, characterized in that on the at least one tensioning spindle (3, 4), there is provided, a toothed segment (18) which can be fixed by one of the actuators (19, 20) which causes the retention, in a variable manner in the circumferential direction.
  4. Device for attaching and changing the position of a cylinder packing according to Claim 3, characterized in that the actuator which causes the retention is configured as a clamping screw (19).
  5. Device for attaching and changing the position of a cylinder packing according to Claim 4, characterized in that the at least one tensioning spindle (3, 4) has, in the end-face region of the printing unit cylinder (1), an opening (15) which allows a tool to be attached.
  6. Device for attaching and changing the position of a cylinder packing according to Claim 3, characterized in that the actuator which causes the retention is configured as an adjusting screw (20).
  7. Device for attaching and changing the position of a cylinder packing according to Claim 6, characterized in that a fork (21), which receives the adjusting screw (29) and the actuator constructed as a bearing pin (22), is constructed in the toothed segment (18).
  8. Device for attaching and changing the position of a cylinder packing according to Claim 7, characterized in that the adjusting screw (20) is movable in the bearing pin (22).
  9. Device for attaching and changing the position of a cylinder packing according to Claim 8, characterized in that the adjusting screw (20) moves the actuator constructed as an adjusting pin (23) on a circular path.
  10. Device for attaching and changing the position of a cylinder packing according to Claim 9, characterized in that the adjusting pin (23) engages in the scale body (16) which is received fixedly against rotation on the at least one tensioning spindle (3, 4).
  11. Device for attaching and changing the position of a cylinder packing according to Claim 10, characterized in that, when the stress is relieved from the cylinder packing (29) by rotating the adjusting screw (20) on the at least one tensioning spindle (3, 4), the at least one tensioning spindle (3, 4) is rotatable, by means of the adjusting pin (23) engaging in the scale body (16), relative to the relieved cylinder packing (29).
EP93108923A 1992-07-08 1993-06-03 Device for securing and changing the position of a cylinder covering Expired - Lifetime EP0579941B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4222332 1992-07-08
DE4222332A DE4222332C2 (en) 1992-07-08 1992-07-08 Device for fastening and changing the position of a cylinder lift

Publications (2)

Publication Number Publication Date
EP0579941A1 EP0579941A1 (en) 1994-01-26
EP0579941B1 true EP0579941B1 (en) 1998-10-21

Family

ID=6462702

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93108923A Expired - Lifetime EP0579941B1 (en) 1992-07-08 1993-06-03 Device for securing and changing the position of a cylinder covering

Country Status (5)

Country Link
US (1) US5337666A (en)
EP (1) EP0579941B1 (en)
JP (1) JP3219907B2 (en)
CA (1) CA2096758C (en)
DE (2) DE4222332C2 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29507330U1 (en) * 1995-05-03 1995-06-29 Heidelberger Druckmaschinen Ag, 69115 Heidelberg Device for fastening a tensioning rail
DE19537420C1 (en) * 1995-10-07 1997-03-13 Koenig & Bauer Albert Ag Device for fastening and tensioning printing plates with bent ends
JP3477356B2 (en) * 1997-03-27 2003-12-10 リョービ株式会社 Printing machine clamp drive
DE19854526A1 (en) 1998-11-26 2000-05-31 Heidelberger Druckmasch Ag Method and device for tensioning a cylinder lift on a printing press cylinder
JP2009160927A (en) * 2007-12-13 2009-07-23 Komori Corp Mounting apparatus of blanket or plate
CN103946024B (en) * 2011-09-25 2017-04-19 惠普印迪戈股份公司 Blanket tensioning device
CN103129018B (en) * 2013-03-05 2014-11-05 北京印刷学院 Rotary disk belt feeding device
WO2022031742A1 (en) * 2020-08-06 2022-02-10 Crane & Co., Inc. Improved packings and frontings tensioning mechanism and method.

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US2850970A (en) * 1955-04-22 1958-09-09 Levey Fred K H Co Inc Lock-up
DE1124051B (en) * 1955-04-22 1962-02-22 Fred K H Levey Company Inc Device for attaching the blanket to the blanket cylinder
US2837994A (en) * 1957-05-09 1958-06-10 Levey Fred K H Co Inc Lock-up
US2929323A (en) * 1959-06-03 1960-03-22 J W Clement Company Lock-up device
US3335663A (en) * 1964-08-12 1967-08-15 Miehle Goss Dexter Inc Plate lockup for reversible plate cylinder
GB1125296A (en) * 1965-01-25 1968-08-28 Adamovske Strojirny Np Improved arrangement for mounting a pliable offset blanket
US3605621A (en) * 1969-05-08 1971-09-20 Wood Industries Inc Printing cylinder for holding flexible plates
DE2953815C2 (en) * 1979-03-20 1983-11-03 Koenig & Bauer AG, 8700 Würzburg Blanket tensioner
JPS58177360A (en) * 1982-04-12 1983-10-18 Toyo Seikan Kaisha Ltd Tensing device for blanket of printer
IT1163871B (en) * 1983-07-29 1987-04-08 Cerutti Spa Off Mec PLATE HOLDER ROLLER, IN PARTICULAR FOR FLEXOGRAPHIC PRINTING
US4815380A (en) * 1987-02-21 1989-03-28 M.A.N. Roland Druckmaschinen Ag Printing machine cylinder with adjustable groove cover element
JP2651720B2 (en) * 1989-03-18 1997-09-10 株式会社東京機械製作所 Spot printing method and blanket cylinder for spot printing in a rotary printing press
DE4011303C2 (en) * 1990-04-07 2001-06-13 Roland Man Druckmasch Device for fastening a rubber blanket on a rubber cylinder of an offset printing machine
US5052120A (en) * 1990-04-16 1991-10-01 Eastman Kodak Company Sheet positioning, clamping, and tensioning means

Also Published As

Publication number Publication date
DE4222332A1 (en) 1994-01-13
CA2096758C (en) 1997-05-06
EP0579941A1 (en) 1994-01-26
DE59309075D1 (en) 1998-11-26
CA2096758A1 (en) 1994-01-09
JP3219907B2 (en) 2001-10-15
US5337666A (en) 1994-08-16
JPH06155716A (en) 1994-06-03
DE4222332C2 (en) 1995-04-20

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