EP0070378B1 - Device for fixing the lower cover of a double-layered covering to the cylinder surface of a printing cylinder in printing machines - Google Patents

Device for fixing the lower cover of a double-layered covering to the cylinder surface of a printing cylinder in printing machines Download PDF

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Publication number
EP0070378B1
EP0070378B1 EP82104747A EP82104747A EP0070378B1 EP 0070378 B1 EP0070378 B1 EP 0070378B1 EP 82104747 A EP82104747 A EP 82104747A EP 82104747 A EP82104747 A EP 82104747A EP 0070378 B1 EP0070378 B1 EP 0070378B1
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EP
European Patent Office
Prior art keywords
holding
holding device
cylinder
bar
lower covering
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
Application number
EP82104747A
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German (de)
French (fr)
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EP0070378A1 (en
Inventor
Wilfried Vogt
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
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Heidelberger Druckmaschinen AG
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Publication of EP0070378A1 publication Critical patent/EP0070378A1/en
Application granted granted Critical
Publication of EP0070378B1 publication Critical patent/EP0070378B1/en
Expired 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
    • B41F27/125—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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F30/00—Devices for attaching coverings or make-ready devices; Guiding devices for coverings
    • B41F30/04—Devices for attaching coverings or make-ready devices; Guiding devices for coverings attaching to transfer cylinders

Definitions

  • the invention relates to a device for holding the lower elevator of a two-layer elevator on the outer surface of a printing cylinder in printing machines according to the preamble of claim 1 (DE-A No. 1914373).
  • DE-A No. 1611325 has disclosed a device for holding a two-layer elevator on the printing cylinder of printing presses, in which the basic elevator is clamped between two rails.
  • the exact position of the clamping rails clamping the basic elevator is achieved by known heads of the cylinder screws projecting into bores at the edge of the pressure cylinder and located on the clamping rails, magnets being arranged in the bores for holding them.
  • the holding device should be designed to be extremely space-saving. In addition to the possibility of being able to fasten the lower elevator on the holding device, it should also be ensured that it is always positioned parallel to the axis and at a predetermined distance from the outer edge of the impression cylinder.
  • the pressure cylinder 1 shown in FIG. 1 has a recess 2 on its circumference, which essentially serves to accommodate the two tensioning devices 3 for the upper elevator 4.
  • the holding device 5 for the lower elevator 6 is arranged in the intermediate space formed by the upper elevator 4, its tensioning device 3 and by the edge 7 of the recess 2.
  • the lower elevator 6 itself does not extend over the entire circumference of the printing cylinder 1.
  • the holding device 5 shown in FIG. 2 mainly consists of a holding rail 8, which extends over the entire length of the printing cylinder 1, which essentially has a circular cross section and is provided with a secant flattening 9 for the support of the lower elevator 6.
  • the entire holding device 5 with the lower elevator 6 attached to it is through the prism-shaped gap 10, which between the edge 7 and the clamping device device 3 arises, positioned axially parallel and additionally pressed into this position by the tensioned upper elevator 4.
  • the connection between the lower elevator 6 and the holding device 5 takes place via the holding bolts 11 provided on the holding rail 8.
  • the shaft 12 of each holding bolt 11 projects through a corresponding bore in the holding rail 8 and can be rotated about its longitudinal axis.
  • the holding rail 8 is provided with a cutout 13 at the exit point of the holding bolt 11.
  • a plate spring 14, which abuts against a collar 15 provided at the shaft end of the retaining bolt 11, ensures that the retaining bolt head 16, which is cylindrical in cross section, abuts the secant flattening 9 of the retaining rail 8.
  • the upper head end 17 of the retaining bolt head 16 is round-headed in the selected exemplary embodiment Two-edged (FIG. 4), the essential general criterion for the function of the upper head end 17 being that it has a different length / width ratio in cross section.
  • the lower elevator 6 and the reinforcing rail 18 provided between the upper head end 17 of the retaining bolt 11 and the lower elevator 6 are provided with punched holes 19 machined in the predetermined positions, the cross-section of which corresponds to that of the upper head end 17.
  • the connection between the holding device 5 and the lower elevator 6 now takes place in such a way that the latter is guided over the upper head end 17 of the holding bolt 11 and brought to bear on the secant flat 9 of the holding rail 8.
  • the retaining bolt 11 is now turned through 90 °. which results in a positive locking connection.
  • the reinforcing rail 18 prevents the lower elevator 6 from tearing out at the clamping points. There is no need for the function of the device according to the invention for the reinforcing rail 18 to extend over the entire cylinder length or for the retaining bolts 11 to be distributed over the entire cylinder length.
  • connection between the pressure cylinder 1 and the holding device 5 is in each case on the end face.
  • a conical pin 20 protruding from the holding rail 8 is inserted into a centering hole 21 of the bearer ring 22 in this exemplary embodiment.
  • a further conical pin 23 provided on the opposite side of the holding rail 8 is inserted into a corresponding centering hole 21 of the other bearer ring 22, wherein it is supported on the holding rail 8 via a spring 24. It is essential that the dimension is defined from the one end face 25 of the holding rail 8, which is provided with the fixed conical pin 20, to the holding bolts 11, and this ensures that, together with the punched holes 19 likewise provided in a predetermined position, the lower elevator 6 is exact rests on the printing cylinder 1 at the desired location.
  • FIG. 5 A further embodiment of the holding rail 27 with its fastening at the end is shown in FIG. 5.
  • One end of the holding rail 27 is provided with a cone 28 which engages in the centering bore 21 of the one bearer ring 22.
  • the other end of the holding rail 27 is equipped with a pin 29, which in turn engages in a corresponding recess 30 of the other bearer ring 22.
  • said recess 30 can expediently be designed as a longitudinal groove running radially to the axis of the bearer ring 22.
  • a compression spring 32 arranged on the pin 29 and supported on the shoulder 31 and on the bearer ring 22 ensures the lateral positioning of the holding rail 27 as defined by the seat of the cone 28.
  • reinforcement rail 18 and lower elevator 6 are provided with punched holes 19, 33, as can be seen from FIG. 6.
  • the lower elevator 6 is guided over the upper head ends 17 of the retaining bolts 11 and brought to bear on the secant flattening 9 of the retaining rail 27. Then it is shifted laterally in such a way that the upper head end 17 overlaps the punched holes 19, 33, so that the clamp connection is established.

Landscapes

  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
  • Accommodation For Nursing Or Treatment Tables (AREA)
  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)

Description

Die Erfindung betrifft eine Vorrichtung zum Halten des unteren Aufzuges eines zweilagigen Aufzuges auf der Mantelfläche eines Druckzylinders in Druckmaschinen gemäss Oberbegriff des Anspruchs 1 (DE-A Nr. 1914373).The invention relates to a device for holding the lower elevator of a two-layer elevator on the outer surface of a printing cylinder in printing machines according to the preamble of claim 1 (DE-A No. 1914373).

Die Notwendigkeit, einen zweilagigen Aufzug auf die Mantelfläche eines Druckzylinders aufzubringen, ergibt sich aus verschiedenen drucktechnischen Gründen, z.B. beim Gummizylinder einer Offsetdruckmaschine zur exakten Fixierung von sogenannten Formatbögen. Das sind Bögen, die einem kleineren Druckformat entsprechend gewählt werden.The need to apply a two-layer elevator to the outer surface of a printing cylinder results from various printing reasons, e.g. in the rubber cylinder of an offset printing machine for the exact fixing of so-called format sheets. These are sheets that are chosen according to a smaller print format.

Wird nun eine getrennte Befestigung von unterem und oberem Aufzug angestrebt, so ergeben sich besonders bei der konstruktiven Ausgestaltung der Haltevorrichtung für den unteren Aufzug gewisse Schwierigkeiten, mit denen u. a. Mängel bezüglich der Lagegenauigkeit des unteren Aufzuges einhergehen.If a separate fastening of the lower and upper elevator is now sought, there are certain difficulties, in particular in the structural design of the holding device for the lower elevator, with which u. a. There are shortcomings in the position of the lower elevator.

So ist zum Beispiel aus der DE-A Nr. 1611325 eine Vorrichtung zum Halten eines zweilagigen Aufzuges am Druckzylinder von Druckmaschinen bekannt geworden, bei der der Grundaufzug zwischen zwei Schienen geklemmt wird. Gemäss Kennzeichen wird dabei die genaue Lage der den Grundaufzug klemmenden Klemmschienen durch an sich bekannte, in Bohrungen an der Kante des Druckzylinders hineinragende und an den Klemmschienen sich befindende Köpfe der Zylinderschrauben erreicht, wobei zum Halten derselben in den Bohrungen Magnete angeordnet sind.For example, DE-A No. 1611325 has disclosed a device for holding a two-layer elevator on the printing cylinder of printing presses, in which the basic elevator is clamped between two rails. According to the characteristic, the exact position of the clamping rails clamping the basic elevator is achieved by known heads of the cylinder screws projecting into bores at the edge of the pressure cylinder and located on the clamping rails, magnets being arranged in the bores for holding them.

Eine derartige Vorrichtung erfordert sehr viel Platz. Darüber hinaus ist die Verbindung zwischen den den Grundaufzug haltenden Klemmschienen umständlich und zeitaufwendig. Die Lagebestimmung der Klemmschienen ist zwar durch die in der Druckzylinderkante vorgesehenen Bohrungen, in welche die Köpfe der Zylinderschrauben eingreifen, vorgegeben. Die exakte Positionierung des Grundaufzuges bezüglich der Klemmschienen ist demgegenüber nicht gewährleistet.Such a device requires a lot of space. In addition, the connection between the clamping rails holding the basic elevator is cumbersome and time-consuming. The position of the clamping rails is determined by the holes provided in the pressure cylinder edge, into which the heads of the cylinder screws engage. In contrast, the exact positioning of the basic elevator with respect to the clamping rails is not guaranteed.

Des weiteren ist aus der DE-B Nr. 1145185 eine Vorrichtung bekannt geworden, bei der zum Befestigen eines zweilagigen Aufzuges zwischen zwei Spannrollen einerseits und einem Längsschlitz des Druckzylinders andererseits in einer Ausnehmung des Druckzylinders von teilweise kreisförmigem Querschnitt eine parallel zu den Spannrollen verlaufende, mit ihrer Drehachse auf die Mitte des Längsschlitzes des Druckzylindermantels ausgerichtete Spannstange angeordnet ist, deren Querschnitt einen die untere Aufzugslage in der Klemmstellung der Spannstange an die die letztere aufnehmende Ausnehmung des Druckzylinders pressenden kreisförmigen Abschnitt aufweist, an den sich eine oder zwei Abflachungen anschliessen, wobei die Spannstange noch einen sie diametral durchdringenden Längsschlitz aufweist, welcher in der Klemmstellung der Spannstange auf den Längsschlitz des Druckzylindermantels ausgerichtet ist und die obere Lage des Aufzuges den Spannrollen zuführt.Furthermore, from DE-B No. 1145185 a device has become known in which, for fastening a two-layer elevator between two tensioning rollers, on the one hand, and a longitudinal slot of the printing cylinder, on the other hand, in a recess of the printing cylinder of partially circular cross-section, running parallel to the tensioning rollers Its axis of rotation is aligned with the center of the longitudinal slot of the pressure cylinder jacket, the cross-section of which has the lower elevator position in the clamping position of the tension rod to the circular receiving portion of the pressure cylinder receiving the latter, to which one or two flats adjoin, the tension rod still has a diametrically penetrating longitudinal slot, which in the clamping position of the tensioning rod is aligned with the longitudinal slot of the pressure cylinder jacket and the upper layer of the elevator feeds the tensioning rollers.

Die wesentlichen Nachteile einer solchen Vorrichtung sind wohl darin zu sehen, dass das Ausrichten des unteren Aufzuges von Hand erfolgen muss, was einerseits sehr zeitaufwendig ist und letztlich doch eine absolute Genauigkeit vermissen lässt. Aufgrund der Art und Weise, wie der untere Aufzug mittels Spannstange gespannt bzw. geklemmt wird, ist die Spannstange selbst besondersformstabil auszuführen. Letztlich kann die Befestigung des oberen Aufzuges dahingehend Schwierigkeiten bereiten, als selbiger zunächst durch einen Längsschlitz in der Befestigungsvorrichtung für den unteren Aufzug hindurchgeführt werden muss.The main disadvantages of such a device can be seen in the fact that the lower elevator must be aligned by hand, which is very time-consuming on the one hand and ultimately lacks absolute accuracy. Due to the way in which the lower elevator is tensioned or clamped by means of a tensioning rod, the tensioning rod itself has to be of a particularly stable shape. Ultimately, the fastening of the upper elevator can be difficult in that it first has to be passed through a longitudinal slot in the fastening device for the lower elevator.

Gemäss der Beurteilung vorgenannter Druckschriften ist es die Aufgabe der vorliegenden Erfindung, die genannten Nachteile zu vermeiden und eine Haltevorrichtung zu schaffen, die im wesentlichen folgende Eigenschaften aufweist. Die Haltevorrichtung soll ausgesprochen raumsparend aufgebaut sein. Neben der Möglichkeit, den unteren Aufzug rasch auf der Haltevorrichtung befestigen zu können, soll darüber hinaus gewährleistet sein, dass dieser stets achsparallel und mit einem vorgegebenen Abstand zur Druckzylinderaussenkante positioniert ist.According to the assessment of the aforementioned publications, it is the object of the present invention to avoid the disadvantages mentioned and to create a holding device which essentially has the following properties. The holding device should be designed to be extremely space-saving. In addition to the possibility of being able to fasten the lower elevator on the holding device, it should also be ensured that it is always positioned parallel to the axis and at a predetermined distance from the outer edge of the impression cylinder.

Dies wird erfindungsgemäss durch die Merkmale des Kennzeichens des Anspruchs 1 erreicht.This is achieved according to the invention by the features of the characterizing part of claim 1.

Ein Ausführungsbeispiel der Erfindung wird nachstehend anhand der Zeichnungen beschrieben.An embodiment of the invention is described below with reference to the drawings.

Dabei zeigt:

  • Fig. 1 die Seitenansicht eines Druckzylinders, aus der die Lage der erfindungsgemässen Haltevorrichtung hervorgeht,
  • Fig. 2 eine vergrösserte Darstellung der erfindungsgemässen Haltevorrichtung nach Fig. 1,
  • Fig. 3 den Aufbau der Haltevorrichtung, über die Länge des Druckzylinders gesehen,
  • Fig. 4 eine Draufsicht gemäss Fig. 3,
  • Fig. 5 eine weitere Ausführungsform der Halteschiene, und
  • Fig. 6 eine weitere Möglichkeit zur Herstellung der formschlüssigen Klemmverbindung.
It shows:
  • 1 is a side view of a printing cylinder, from which the position of the holding device according to the invention can be seen,
  • 2 is an enlarged view of the holding device according to the invention according to FIG. 1,
  • 3 the structure of the holding device, seen over the length of the printing cylinder,
  • 4 is a top view according to FIG. 3,
  • Fig. 5 shows another embodiment of the holding rail, and
  • Fig. 6 shows another way of producing the positive clamping connection.

Der in Fig. 1 dargestellte Druckzylinder 1 weist auf seinem Umfang eine Ausnehmung 2 auf, welche im wesentlichen der Aufnahme der beiden Spannvorrichtungen 3 für den oberen Aufzug 4 dienen. Die Haltevorrichtung 5 für den unteren Aufzug 6 ist in dem durch den oberen Aufzug 4, dessen Spannvorrichtung 3 sowie durch die Kante 7 der Ausnehmung 2 gebildeten Zwischenraum angeordnet. Der untere Aufzug 6 selbst erstreckt sich in diesem Ausführungsbeispiel nicht über den gesamten Umfang des Druckzylinders 1.The pressure cylinder 1 shown in FIG. 1 has a recess 2 on its circumference, which essentially serves to accommodate the two tensioning devices 3 for the upper elevator 4. The holding device 5 for the lower elevator 6 is arranged in the intermediate space formed by the upper elevator 4, its tensioning device 3 and by the edge 7 of the recess 2. In this exemplary embodiment, the lower elevator 6 itself does not extend over the entire circumference of the printing cylinder 1.

Die in Fig. 2 dargestellte Haltevorrichtung 5 besteht hauptsächlich aus einer sich über die gesamte Länge des Druckzylinders 1 erstreckenden Halteschiene 8, welche im wesentlichen einen kreisförmigen Querschnitt aufweist und mit einer sekantalen Abflachung 9 für die Auflage des unteren Aufzuges 6 versehen ist. Die gesamte Haltevorrichtung 5 mit dem daran befestigten unteren Aufzug 6 wird durch den prismenförmigen Spalt 10, der zwischen der Kante 7 und der Spannvorrichtung 3 entsteht, achsparallel positioniert und durch den gespannten oberen Aufzug 4 zusätzlich in diese Position gedrückt.The holding device 5 shown in FIG. 2 mainly consists of a holding rail 8, which extends over the entire length of the printing cylinder 1, which essentially has a circular cross section and is provided with a secant flattening 9 for the support of the lower elevator 6. The entire holding device 5 with the lower elevator 6 attached to it is through the prism-shaped gap 10, which between the edge 7 and the clamping device device 3 arises, positioned axially parallel and additionally pressed into this position by the tensioned upper elevator 4.

Die Verbindung zwischen unterem Aufzug 6 und Haltevorrichtung 5 erfolgt über die an der Halteschiene 8 vorgesehenen Haltebolzen 11. Der Schaft 12 eines jeden Haltebolzens 11 ragt durch eine entsprechende Bohrung der Halteschiene 8 hindurch und ist um seine Längsachse drehbar. Die Halteschiene 8 ist an der Austrittsstelle des Haltebolzens 11 mit einem Ausschnitt 13 versehen. Eine Tellerfeder 14, welche gegen einen am Schaftende des Haltebolzens 11 vorgesehenen Bund 15 anstösst, sorgt für eine entsprechende Anlage des im Querschnitt zylindrischen Haltebolzenkopfes 16 an der sekantalen Abflachung 9 der Halteschiene 8. Das obere Kopfende 17 des Haltebolzenkopfes 16 ist im gewählten Ausführungsbeispiel als rundstirniger Zweikant ausgebildet (Fig. 4), wobei für die Funktion des oberen Kopfendes 17 das wesentliche allgemeine Kriterium ist, dass es ein im Querschnitt unterschiedliches Längen/Breiten-Verhältnis aufweist.The connection between the lower elevator 6 and the holding device 5 takes place via the holding bolts 11 provided on the holding rail 8. The shaft 12 of each holding bolt 11 projects through a corresponding bore in the holding rail 8 and can be rotated about its longitudinal axis. The holding rail 8 is provided with a cutout 13 at the exit point of the holding bolt 11. A plate spring 14, which abuts against a collar 15 provided at the shaft end of the retaining bolt 11, ensures that the retaining bolt head 16, which is cylindrical in cross section, abuts the secant flattening 9 of the retaining rail 8. The upper head end 17 of the retaining bolt head 16 is round-headed in the selected exemplary embodiment Two-edged (FIG. 4), the essential general criterion for the function of the upper head end 17 being that it has a different length / width ratio in cross section.

Der untere Aufzug 6 sowie die zwischen oberem Kopfende 17 des Haltebolzens 11 und unterem Aufzug 6 vorgesehene Verstärkungsschiene 18 sind mit in den vorgegebenen Positionen eingearbeiteten Stanzlöchern 19 versehen, deren Querschnitt dem des oberen Kopfendes 17 entsprechen. Die Verbindung zwischen Haltevorrichtung 5 und unterem Aufzug 6 erfolgt nun in der Weise, dass letzterer über das obere Kopfende 17 des Haltebolzens 11 geführt und zur Anlage auf der sekantalen Abflachung 9 der Halteschiene 8 gebracht wird. Mittels Schraubendreher oder entsprechendem Werkzeug wird nun der Haltebolzen 11 um 90° gedreht. was eine formschlüssige Klemmverbindung zur Folge hat. Die Verstärkungsschiene 18 verhindert das Ausreissen des unteren Aufzuges 6 an den Klemmstellen. Es besteht dabei für die Funktion der erfindungsgemässen Vorrichtung keine Notwendigkeit, dass sich die Verstärkungsschiene 18 über die gesamte Zylinderlänge erstreckt bzw. die Haltebolzen 11 über die gesamte Zylinderlänge verteilt sind.The lower elevator 6 and the reinforcing rail 18 provided between the upper head end 17 of the retaining bolt 11 and the lower elevator 6 are provided with punched holes 19 machined in the predetermined positions, the cross-section of which corresponds to that of the upper head end 17. The connection between the holding device 5 and the lower elevator 6 now takes place in such a way that the latter is guided over the upper head end 17 of the holding bolt 11 and brought to bear on the secant flat 9 of the holding rail 8. Using a screwdriver or a corresponding tool, the retaining bolt 11 is now turned through 90 °. which results in a positive locking connection. The reinforcing rail 18 prevents the lower elevator 6 from tearing out at the clamping points. There is no need for the function of the device according to the invention for the reinforcing rail 18 to extend over the entire cylinder length or for the retaining bolts 11 to be distributed over the entire cylinder length.

Die Verbindung zwischen Druckzylinder 1 und Haltevorrichtung 5 erfolgt jeweils stirnseitig. Ein aus der Halteschiene 8 herausragender konischer Stift 20 wird in diesem Ausführungsbeispiel in eine Zentrierbohrung 21 des Schmitzringes 22 eingeführt. Ein auf der gegenüberliegenden Seite der Halteschiene 8 vorgesehener weiterer konischer Stift 23 wird in eine entsprechende Zentrierbohrung 21 des anderer Schmitzringes 22 eingeführt, wobei er sich über eine Feder 24 an der Halteschiene 8 abstützt. Wesentlich dabei ist, dass das Mass von der einen, mit dem feststehenden konischen Stift 20 versehenen Stirnseite 25 der Halteschiene 8 zu den Haltebolzen 11 definiert ist und dadurch gewährleistet ist, dass zusammen mit den ebenfalls in vorgegebener Lage angebrachten Stanzlöchern 19 der untere Aufzug 6 exakt an der gewünschten Stelle auf dem Druckzylinder 1 aufliegt.The connection between the pressure cylinder 1 and the holding device 5 is in each case on the end face. A conical pin 20 protruding from the holding rail 8 is inserted into a centering hole 21 of the bearer ring 22 in this exemplary embodiment. A further conical pin 23 provided on the opposite side of the holding rail 8 is inserted into a corresponding centering hole 21 of the other bearer ring 22, wherein it is supported on the holding rail 8 via a spring 24. It is essential that the dimension is defined from the one end face 25 of the holding rail 8, which is provided with the fixed conical pin 20, to the holding bolts 11, and this ensures that, together with the punched holes 19 likewise provided in a predetermined position, the lower elevator 6 is exact rests on the printing cylinder 1 at the desired location.

Eine weitere Ausführungsform der Halteschiene 27 mit ihrer stirnseitigen Befestigung ist in Fig. 5 dargestellt.A further embodiment of the holding rail 27 with its fastening at the end is shown in FIG. 5.

Dabei ist die Möglichkeit gegeben, die Halteschiene 27 im Querschnitt noch kleiner zu dimensionieren, da aufgrund der formstabilisierenden Abstützung derselben an den beiden achsparallelen Anlagestellen 3, 7 auf ihre eigene Formstabilität keine Rücksicht genommen werden muss. Dabei ist das eine Ende der Halteschiene 27 mit einem Konus 28 versehen, welcher in die Zentrierbohrung 21 des einen Schmitzringes 22 eingreift. Das andere Ende der Halteschiene 27 ist mit einem Zapfen 29 ausgestattet, der wiederum in eine entsprechende Ausnehmung 30 des anderen Schmitzringes 22 eingreift. Zur besseren Montage der Halteschiene 27 kann besagte Ausnehmung 30 zweckmässigerweise als zur Achse des Schmitzringes 22 radial verlaufende Längsnut ausgeführt werden. Eine auf dem Zapfen 29 angeordnete und sich am Absatz 31 sowie am Schmitzring 22 abstützende Druckfeder 32 gewährleistet die durch den Sitz des Konus 28 definierte seitliche Positionierung der Halteschiene 27.This gives the possibility of dimensioning the holding rail 27 even smaller in cross-section, since due to the shape-stabilizing support thereof at the two axially parallel contact points 3, 7, there is no need to take account of its own dimensional stability. One end of the holding rail 27 is provided with a cone 28 which engages in the centering bore 21 of the one bearer ring 22. The other end of the holding rail 27 is equipped with a pin 29, which in turn engages in a corresponding recess 30 of the other bearer ring 22. For better assembly of the holding rail 27, said recess 30 can expediently be designed as a longitudinal groove running radially to the axis of the bearer ring 22. A compression spring 32 arranged on the pin 29 and supported on the shoulder 31 and on the bearer ring 22 ensures the lateral positioning of the holding rail 27 as defined by the seat of the cone 28.

Letztlich sei noch eine weitere Möglichkeit aufgezeigt, die Klemmverbindung für den unteren Aufzug 6 auf einfache Weise herzustellen. Hierzu sind Verstärkungsschiene 18 sowie unterer Aufzug 6 mit Stanzlöchern 19, 33 versehen, wie aus Fig. 6 zu ersehen ist. Zur Montage des unteren Aufzuges 6 wird letzterer über die oberen Kopfenden 17 der Haltebolzen 11 geführt und zur Anlage auf der sekantalen Abflachung 9 der Halteschiene 27 gebracht. Anschliessend wird so seitlich verschoben, dass das obere Kopfende 17 dabei die Stanzlöcher 19, 33 überlappt, so dass die Klemmverbindung hergestellt ist.Finally, a further possibility is shown to establish the clamp connection for the lower elevator 6 in a simple manner. For this purpose, reinforcement rail 18 and lower elevator 6 are provided with punched holes 19, 33, as can be seen from FIG. 6. To assemble the lower elevator 6, the latter is guided over the upper head ends 17 of the retaining bolts 11 and brought to bear on the secant flattening 9 of the retaining rail 27. Then it is shifted laterally in such a way that the upper head end 17 overlaps the punched holes 19, 33, so that the clamp connection is established.

Claims (7)

1. A device for securing the lower covering (6) of a two-layer covering (4,6) on the jacket surface of a printing cylinder (1) of printing machines, whereby the upper covering (4) substantially overlaps the holding device (5) of the lower covering (6), whereby the holding device (5) for the lower covering (6) is constructed in the form of a locking bar (8, 27) extending across the full length of the printing cylinder whereby the locking bar (8, 27) presents an essentially circular cross section which via a front supporting point and two axially parallel supporting points (22, 3, 7) rests in the recess (2) of the printing cylinder (1) in such a way as to assure that the holding device (5) is positioned to precisely match the circumferential and lateral directions and to stabilize the forming or shaping design, while, in addition to this, holding pins (11) are arranged in good register across the length of the holding bar (8, 27) the cross section of the upper head ends (17) of which show different length-to-width ratios and cooperate with punched holes (19, 33) specifically shaped and worked into the lower covering (6).
2. A holding device according to Claim 1 whereby the holding bar (8, 27) is supported against an axially parallel prismatic gap (10) formed by the edge (7) of the recess (2) of the printing cylinder (1), on the one hand, and by the tensioning device (3) arranged therein and used for the upper covering (4), on the other hand, whereby the tensioning of the upper covering (4) presses the holding device (5) into this prismatic gap (10).
3. A holding device according to Claims 1 and 2 whereby the holding bar (8, 27) is provided with a secantal flat portion (9) for supporting the lower covering (6) and that, in addition to this, the holding pins (11) arranged across the length of the holding bar (8, 27) establish viathe punched holes (19, 33) worked in precisely fitting arrangement into the reinforcement bar (18) and the lower covering (6), the positive connection between the holding device (5) and the lower covering (6).
4. A holding device according to Claims 1 to 3 whereby the said positive connection is effected by means of a 90° rotation of the holding pins (11 ) according to their longitudinal axis.
5. A holding device according to Claims 1 to 3 whereby a stationary and a spring-loaded cone pin each are provided on the two front sides (25) of the holding bar (8), whereby these pins engage pertinent center holes (21) of the cylinder bearers (22), the distance between the holding pins (11) and/or the lower covering (6) and the front side of the printing cylinder (1) characterized by the cylinder bearer (22) and engaged by the stationary cone pin (20), being defined by the spring-loaded stop of the holding bar.
6. A holding device according to Claims 1 to 3, whereby the positive connection between the holding device (5) and the lower covering (6) is effected by displacement in the longitudinal direction of the cylinder.
7. A holding device according to Claims 1 to 3 whereby the two front ends of the holding bar (27) are each designed as a cone (28) and a pivot (29), whereby the cone (28) engages a corresponding center hole (21 ) of the cylinder bearer (22), while for the pivot (29) to be used as a guide for compression spring (32), a longitudinal slot (30) has been provided which is radially arranged in the cylinder bearer (22).
EP82104747A 1981-07-16 1982-05-29 Device for fixing the lower cover of a double-layered covering to the cylinder surface of a printing cylinder in printing machines Expired EP0070378B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3128105 1981-07-16
DE3128105A DE3128105C2 (en) 1981-07-16 1981-07-16 Device for holding the lower elevator of a two-layer elevator on the outer surface of a printing cylinder in printing machines

Publications (2)

Publication Number Publication Date
EP0070378A1 EP0070378A1 (en) 1983-01-26
EP0070378B1 true EP0070378B1 (en) 1984-12-05

Family

ID=6137044

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82104747A Expired EP0070378B1 (en) 1981-07-16 1982-05-29 Device for fixing the lower cover of a double-layered covering to the cylinder surface of a printing cylinder in printing machines

Country Status (7)

Country Link
US (1) US4426931A (en)
EP (1) EP0070378B1 (en)
JP (1) JPS5818267A (en)
CA (1) CA1181990A (en)
DE (1) DE3128105C2 (en)
DK (1) DK150296C (en)
ES (1) ES513816A0 (en)

Cited By (1)

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Publication number Priority date Publication date Assignee Title
DE4203148A1 (en) * 1992-02-05 1993-08-12 Koenig & Bauer Ag ARRANGEMENT FOR HOLDING THE LOWER LOCATION OF TWO-LAYER ELEVATORS FOR PRINT CYLINDERS OF ROTARY PRINTING MACHINES

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JPS60148756A (en) * 1984-01-13 1985-08-06 Kokusan Kinzoku Kogyo Co Ltd Steering lock device
DE3421148A1 (en) * 1984-06-07 1985-12-12 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach DEVICE FOR HOLDING THE LOWER LIFT
US4829896A (en) * 1987-05-18 1989-05-16 W. R. Grace & Co. Apparatus for attaching a printing blanket to a printing cylinder
US4823516A (en) * 1988-05-06 1989-04-25 Cincinnati Milacron Inc. Cutting tool wheel having a removable abrasive belt
US5046421A (en) * 1989-12-19 1991-09-10 Demoore Howard W Net cartridge assembly for use with transfer and delivery cylinders in rotary printing presses
US5107763A (en) * 1990-04-24 1992-04-28 Rockwell International Corporation Narrow gap plate mounting apparatus and method
JPH0542014U (en) * 1991-12-27 1993-06-08 株式会社アルフア Steering lock device
JPH08275351A (en) * 1995-03-31 1996-10-18 Oyo Kikaku:Kk Wiring floor structure
EP2609026B1 (en) * 2010-08-25 2018-08-01 Hewlett-Packard Development Company, L.P. Substrate support
WO2020014672A1 (en) 2018-07-13 2020-01-16 Reelcraft Industries, Inc. Hose reel

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DE1145185B (en) * 1960-03-08 1963-03-14 Vickers Armstrongs Engineering Arrangement for fastening the elevator on the printing cylinder of a printing machine
US3095809A (en) * 1960-09-26 1963-07-02 Addressograph Multigraph Master stripping means for rotary printing machines
DE1198376B (en) * 1964-04-29 1965-08-12 Roland Offsetmaschf Arrangement for fastening the rubber blanket on the rubber cylinder of offset printing machines
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DE1611325A1 (en) * 1968-03-13 1970-12-10 Polygraph Leipzig Device for holding the elevator on the printing cylinder of printing machines, in particular high-pressure machines
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4203148A1 (en) * 1992-02-05 1993-08-12 Koenig & Bauer Ag ARRANGEMENT FOR HOLDING THE LOWER LOCATION OF TWO-LAYER ELEVATORS FOR PRINT CYLINDERS OF ROTARY PRINTING MACHINES

Also Published As

Publication number Publication date
DK150296C (en) 1987-11-02
ES8304848A1 (en) 1983-04-01
JPS642518B2 (en) 1989-01-17
DE3128105A1 (en) 1983-02-03
EP0070378A1 (en) 1983-01-26
US4426931A (en) 1984-01-24
CA1181990A (en) 1985-02-05
DK150296B (en) 1987-02-02
JPS5818267A (en) 1983-02-02
DE3128105C2 (en) 1985-11-14
ES513816A0 (en) 1983-04-01
DK296782A (en) 1983-01-17

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