EP0606604B1 - Device for clamping flexible printing plates on the forme cylinder of a printing machine - Google Patents
Device for clamping flexible printing plates on the forme cylinder of a printing machine Download PDFInfo
- Publication number
- EP0606604B1 EP0606604B1 EP93120243A EP93120243A EP0606604B1 EP 0606604 B1 EP0606604 B1 EP 0606604B1 EP 93120243 A EP93120243 A EP 93120243A EP 93120243 A EP93120243 A EP 93120243A EP 0606604 B1 EP0606604 B1 EP 0606604B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- tensioning
- strips
- forme cylinder
- strip
- hose
- 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
Links
- 238000007789 sealing Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F27/00—Devices for attaching printing elements or formes to supports
- B41F27/12—Devices for attaching printing elements or formes to supports for attaching flexible printing formes
- B41F27/1218—Devices for attaching printing elements or formes to supports for attaching flexible printing formes comprising printing plate tensioning devices
- B41F27/1225—Devices for attaching printing elements or formes to supports for attaching flexible printing formes comprising printing plate tensioning devices moving in the printing plate end substantially rectilinearly
- B41F27/1243—Devices for attaching printing elements or formes to supports for attaching flexible printing formes comprising printing plate tensioning devices moving in the printing plate end substantially rectilinearly by pivotal or swivelling motion, e.g. by means of a rocking lever
Definitions
- the invention relates to a device for clamping flexible printing plates on a forme cylinder according to the preamble of patent claim 1.
- DE-A-19 36 396 shows a generic device for clamping flexible printing plates on a forme cylinder of a rotary printing press.
- axially parallel grooves are provided in the cylinder, into each of which an insert strip consisting of a U-shaped profile is fitted.
- clamping bars in the form of one-armed levers which are pivotally mounted on shafts or fixedly attached to them. The tensioning strips can be prestressed against each other by means of spring force.
- the forme cylinder has an axially parallel clamping channel with two clamping jaws arranged therein for gripping the bent pressure plate ends and an inflatable tube located between the clamping jaws.
- the hose presses both against the clamping jaws and against the inside of the clamping jaws Slidable intermediate pieces arranged in the axis-parallel direction, with further angled flanges of the already bent pressure plate ends being clampable between the clamping jaws and the intermediate pieces.
- the jaws are pivoted about their center.
- the inflatable tube presses on the ends of the clamping jaws, which are approximately H-shaped in cross section, in the direction of the axis of rotation of the forme cylinder.
- a disadvantage of this device is that on the one hand the clamping device cannot be actuated if the auxiliary power fails and on the other hand the pressure plates detach themselves from the forme cylinder in the event of pressure loss during the operating state. Due to the tensioning of both plate ends by means of the device, an exact setting of the circumferential register is not possible. A replacement of the air hose as a wearing part from the clamping channel of the forme cylinder is only possible on the end face of the forme cylinder due to the presence of the intermediate pieces, which can only be done if the forme cylinder is removed.
- the invention has for its object to provide an operable with auxiliary energy, easily accessible device for register accurate clamping of flexible printing plates on a reversible form cylinder of a rotary printing press, which requires auxiliary energy only during the clamping process.
- the auxiliary energy e.g. B. Compressed air is only required during the clamping process. If the auxiliary power fails, there is no risk of the plates automatically detaching from the forme cylinder.
- the air hose can be removed as a wear part in the radial direction from the insert bar of the forme cylinder with the tension flaps open. By using one of two cylinder-fixed hanging edges to fasten a bent end of the plate, register-accurate clamping is possible. This applies equally to a reversal of the direction of rotation of the forme cylinder. This is particularly important in newspaper printing to increase the number of web guiding options.
- the clamping bars of the device develop a particularly high clamping force with a small construction volume of the springs. A sufficiently large counterforce is generated by the hose, which lies continuously between the tensioning strips, in order to counteract the tensioning forces of the tensioning strips when the pressure plates are hooked in.
- An insert strip 2 with an approximately U-shaped profile is arranged in a non-positive and form-fitting manner in an axially parallel groove in the lateral surface of a forme cylinder 1.
- the insert bar 2 has, at its upper free ends facing the jacket surface of the forme cylinder 1 in cross-section, projection-like hanging edges 3, 4 for pressure plates 6, 7.
- Bearing blocks 8, 9 are provided on each end face of the insert bar 2, in which two rotatable clamping bars 11, 12 which run parallel to one another are arranged.
- the bearing blocks 8, 9 are fastened to the respective end face of the insert strip 2 by means of cylinder screws 10.
- the tensioning strips 11, 12 are biased relative to the bearing block 8 in the direction of rotation in relation to the axis of symmetry 13 (section line III-III in FIG. 2) at their first ends 17, 18 close to the cylinder, via torsion bar springs 14, 16 (FIG. 4).
- the tensioning strips 11, 12 have claw-like second ends 19, 21. 4, these ends 19, 21 are in the rest position.
- a clamping lever 22, 23 which extends in the radial direction, for manual actuation of the Clamping strip 11, 12 positively connected.
- the clamping bar 11, 12 can be opened by means of a tool 24 against its pretensioning moment. (Fig. 2).
- hose 26 Between the clamping bars 11, 12 is a z. B. by compressed air pressurizable hose 26, which extends parallel to the clamping bars 11, 12, arranged.
- the hose 26 is held on both sides at its respective end in the vicinity of the bearing blocks 8, 9 by longitudinally slotted tubular guides 27, 28 which receive the hose ends and are each held in a bore in the insert strip 2 (FIG. 3).
- the hose 26 thus assumes a defined position between the tensioning strips 11, 12.
- the hose 26 is approximately in the middle on its underside with a connecting pipe 29, for. B.
- a grub screw with a bore which is guided through a fastening strip 31 for the hose 26 and is subsequently connected non-positively to a sleeve 32 which has sealing rings 33 spaced apart on its circumference.
- This sleeve 32 is connected to a flange 34 arranged in the lower part of the insert strip 2, which is connected to a pneumatic hose 36 which extends in a groove on the underside of the insert strip 2.
- the sleeve 32 with the sealing rings 33 serves as an airtight quick connection with respect to the flange 34.
- the pneumatic hose 36 (FIG. 2) is above the forme cylinder 1 via known air supply systems, for. B.
- the Fastening strip 31 is fastened by means of screws 37 in the lower part of the insert strip 2.
- the connecting pipe 29 can be fastened in the hose 26 by means of a nut 38.
- the flange 34 can be fastened by means of a screw 39 in the lower part of the insert strip 2.
- the clamping strips 11, 12 assume the position shown in FIG. 4.
- the angled end of the pressure plate 6 is attached to the attachment edge 3 (FIG. 5).
- the hose 26 (arrow direction B in FIG. 5) is filled with compressed air, approximately 6 to 8 bar.
- the tensioning strips 11, 12 are pivoted against the pretensioning moment of the torsion bar springs 14, 16, so that the angled end of the pressure plate 7, as shown in FIG. 5, rests freely on the second end 21 of the tensioning strip 12.
- the pressure plate can either be removed or tensioned by venting the hose 26 via a valve. The air escapes in the direction of arrow B in FIG. 5.
- both a single pressure plate 6, 7 can be applied to the circumference of the forme cylinder 1 and, as is customary in practice, two plates 6, 7 in the circumferential direction. In this case, two insert strips 2 must be provided.
- four pressure plates 6, 7 are applied next to one another in the axial direction of the forme cylinder 1. This can be done with the corresponding arrangement of the insert strips 2 on the forme cylinder 1.
- Another one in a groove Pneumatic hose 41 arranged on the underside of the insert bar 2 is provided for producing the air supply with a further insert bar 2 arranged in a groove on the forme cylinder 1 in the axial direction. With 42 holes for attaching the insert bar 2 in a groove of the forme cylinder 1 are designated.
- Compressed air with a pressure of 6 to 8 bar which is supplied from a compressed air system, is preferably used as auxiliary energy for actuating the hose 26.
- the hose 26 could also be supplied with hydraulic fluid via a hydraulic system.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
Description
Die Erfindung betrifft eine Vorrichtung zum Aufspannen von biegsamen Druckplatten auf einen Formzylinder gemäß dem Oberbegriff des Patentanspruches 1.The invention relates to a device for clamping flexible printing plates on a forme cylinder according to the preamble of patent claim 1.
Die DE-A-19 36 396 zeigt eine gattungsgemäße Vorrichtung zum Aufspannen von biegsamen Druckplatten auf einen Formzylinder einer Rotationsdruckmaschine. Hierbei sind im Zylinder achsparallele Nuten vorgesehen, in welche jeweils eine aus einem U-förmigen Profil bestehende Einsatzleiste eingepaßt ist. Es sind Spannleisten in Form einarmiger Hebel vorgesehen, die schwenkbar auf Wellen gelagert bzw. an ihnen fest angebracht sind. Die Spannleisten sind mittels Federkraft gegeneinander vorspannbar.DE-A-19 36 396 shows a generic device for clamping flexible printing plates on a forme cylinder of a rotary printing press. Here, axially parallel grooves are provided in the cylinder, into each of which an insert strip consisting of a U-shaped profile is fitted. There are clamping bars in the form of one-armed levers which are pivotally mounted on shafts or fixedly attached to them. The tensioning strips can be prestressed against each other by means of spring force.
Aus der DE-PS 11 44 294 ist eine Vorrichtung zum Befestigen einer flexiblen Druckplatte auf einem Formzylinder einer Rotationsdruckmaschine bekannt. Der Formzylinder weist einen achsparallelen Spannkanal auf mit zwei darin angeordneten Spannbacken zum Erfassen der abgebogenen Druckplattenenden sowie einen zwischen den Spannbacken befindlichen aufblasbaren Schlauch. Der Schlauch drückt in aufgeblasenem Zustand sowohl gegen die Spannbacken als auch gegen innerhalb der Spannbacken in achsparalleler Richtung angeordnete verschiebbare Zwischenstücke, wobei nochmals abgewinkelte Flansche der bereits abgebogenen Druckplattenenden zwischen den Spannbacken und den Zwischenstücken festklemmbar sind. Dabei sind die Spannbacken etwa um ihren Mittelpunkt schwenkbar angeordnet. Der aufblasbare Schlauch drückt auf die in Richtung zur Rotationsachse des Formzylinders gelegenen Enden der im Querschnitt etwa H-förmig ausgebildeten Spannbacken.From DE-PS 11 44 294 a device for fastening a flexible printing plate on a forme cylinder of a rotary printing press is known. The forme cylinder has an axially parallel clamping channel with two clamping jaws arranged therein for gripping the bent pressure plate ends and an inflatable tube located between the clamping jaws. In the inflated state, the hose presses both against the clamping jaws and against the inside of the clamping jaws Slidable intermediate pieces arranged in the axis-parallel direction, with further angled flanges of the already bent pressure plate ends being clampable between the clamping jaws and the intermediate pieces. The jaws are pivoted about their center. The inflatable tube presses on the ends of the clamping jaws, which are approximately H-shaped in cross section, in the direction of the axis of rotation of the forme cylinder.
Nachteilig bei dieser Vorrichtung ist, daß einerseits die Spannvorrichtung nicht betätigt werden kann, wenn die Hilfsenergie ausfällt und sich andererseits bei Druckverlust während des Betriebszustandes die Druckplatten selbständig vom Formzylinder lösen. Infolge des Spannens beider Plattenenden mittels der Vorrichtung ist eine genaue Einstellung des Umfangsregisters nicht möglich. Ein Auswechseln des Luftschlauches als Verschleißteil aus dem Spannkanal des Formzylinders ist aufgrund des Vorhandenseins der Zwischenstücke nur an der Stirnseite des Formzylinders möglich, was ggf. nur im ausgebauten Zustand des Formzylinders erfolgen kann.A disadvantage of this device is that on the one hand the clamping device cannot be actuated if the auxiliary power fails and on the other hand the pressure plates detach themselves from the forme cylinder in the event of pressure loss during the operating state. Due to the tensioning of both plate ends by means of the device, an exact setting of the circumferential register is not possible. A replacement of the air hose as a wearing part from the clamping channel of the forme cylinder is only possible on the end face of the forme cylinder due to the presence of the intermediate pieces, which can only be done if the forme cylinder is removed.
Der Erfindung liegt die Aufgabe zugrunde, eine mit Hilfsenergie betätigbare, leicht zugängige Vorrichtung zum registergenauen Aufspannen von biegsamen Druckplatten auf einen drehrichtungsumkehrbaren Formzylinder einer Rotationsdruckmaschine zu schaffen, welche Hilfsenergie nur während des Aufspannvorganges benötigt.The invention has for its object to provide an operable with auxiliary energy, easily accessible device for register accurate clamping of flexible printing plates on a reversible form cylinder of a rotary printing press, which requires auxiliary energy only during the clamping process.
Erfindungsgemäß wird diese Aufgabe durch den kennzeichnenden Teil des Patentanspruches 1 gelöst.According to the invention, this object is achieved by the characterizing part of patent claim 1.
Durch die Erfindung werden insbesondere folgende Vorteile erzielt. Durch die Verbindung der Spannleisten sowohl mit dem druckmittelbeaufschlagbaren Schlauch als auch mit den Spannhebeln ist eine manuelle oder auch eine automatische Bewegung der Spannvorrichtung möglich.The following advantages are achieved in particular by the invention. By connecting the tensioning bars both with the hose that can be pressurized with pressure medium and with the tensioning levers, a manual or an automatic movement of the tensioning device is possible.
Die Hilfsenergie, z. B. Druckluft wird nur während des Aufspannvorganges benötigt. Beim Ausfall der Hilfsenergie besteht keine Gefahr des selbsttätigen Loslösens der Platten vom Formzylinder. Der Luftschlauch kann als Verschleißteil ohne Aufwand bei geöffneten Spannklappen in radialer Richtung aus der Einsatzleiste des Formzylinders entnommen werden. Durch die Benutzung jeweils einer von zwei zylinderfesten Einhängekanten zum Befestigen eines abgebogenen Endes der Platte ist ein registergenaues Spannen möglich. Das gilt gleichermaßen bei einer Drehrichtungsumkehr des Formzylinders. Dies ist vor allem beim Zeitungsdruck zur Erhöhung der Anzahl der Bahnführungsmöglichkeiten von Bedeutung. Die Spannleisten der Vorrichtung entwickeln eine besonders hohe Spannkraft bei einem geringen Bauvolumen der Federn. Durch den Schlauch, der kontinuierlich zwischen den Spannleisten anliegt, wird eine genügend große Gegenkraft erzeugt, um den Spannkräften der Spannleisten beim Einhängevorgang der Druckplatten entgegenzuwirken.The auxiliary energy, e.g. B. Compressed air is only required during the clamping process. If the auxiliary power fails, there is no risk of the plates automatically detaching from the forme cylinder. The air hose can be removed as a wear part in the radial direction from the insert bar of the forme cylinder with the tension flaps open. By using one of two cylinder-fixed hanging edges to fasten a bent end of the plate, register-accurate clamping is possible. This applies equally to a reversal of the direction of rotation of the forme cylinder. This is particularly important in newspaper printing to increase the number of web guiding options. The clamping bars of the device develop a particularly high clamping force with a small construction volume of the springs. A sufficiently large counterforce is generated by the hose, which lies continuously between the tensioning strips, in order to counteract the tensioning forces of the tensioning strips when the pressure plates are hooked in.
Die Erfindung wird nachfolgend an einem Ausführungsbeispiel näher erläutert. Die dazugehörigen Zeichnungen zeigen in
- Fig. 1
- eine perspektivische Darstellung der Vorrichtung;
- Fig. 2
- die stirnseitige Ansicht A nach Fig. 1 mit einem Werkzeug für manuelle Betätigung;
- Fig. 3
- einen Längsschnitt III - III nach Fig. 2;
- Fig. 4
- einen Querschnitt entlang der Linien IV - IV nach Fig. 1 im Ruhezustand mit drucklosem Schlauch;
- Fig. 5
- eine Darstellung analog Fig. 4, jedoch mit druckbelastetem Schlauch und einer zum Spannen vorgesehenen Druckplatte.
- Fig. 1
- a perspective view of the device;
- Fig. 2
- the front view A of Figure 1 with a tool for manual operation.
- Fig. 3
- a longitudinal section III - III of FIG. 2;
- Fig. 4
- a cross-section along the lines IV - IV of Figure 1 in the rest state with an unpressurized hose.
- Fig. 5
- a representation analogous to FIG. 4, but with a pressure-loaded hose and a pressure plate provided for tensioning.
In einer achsparallelen Nut der Manteloberfläche eines Formzylinders 1 ist kraft- und formschlüssig eine Einsatzleiste 2 mit einem etwa U-förmigen Profil angeordnet. Die Einsatzleiste 2 weist an ihren oberen freien, der Manteloberfläche des Formzylinders 1 zugewandten Enden im Querschnitt gesehen, vorsprungartige Einhängekanten 3, 4 für Druckplatten 6, 7 auf.An
Jeweils stirnseitig an der Einsatzleiste 2 sind Lagerböcke 8, 9 vorgesehen, in welchen zwei parallel zueinander verlaufende, drehbewegliche Spannleisten 11, 12 angeordnet sind. Die Lagerböcke 8, 9 sind mittels Zylinderschrauben 10 an der jeweiligen Stirnseite der Einsatzleiste 2 befestigt. Die Spannleisten 11, 12 werden gegenüber dem Lagerbock 8 in Drehrichtung zur Symmetrieachse 13 (Schnittlinie III - III in Fig. 2) an ihren, im Querschnitt gesehen, zylindernahen ersten Enden 17, 18 über Drehstabfedern 14, 16 vorgespannt (Fig. 4). Die Spannleisten 11, 12 weisen klauenartig ausgebildete zweite Enden 19, 21 auf. Diese Enden 19, 21 befinden sich in der Darstellung nach Fig. 4 in Ruheposition. Mit der Drehstabfeder 14, 16 ist im stirnseitig angeordneten Lagerbock 8 jeweils ein in radialer Richtung verlaufender Spannhebel 22, 23 zur manuellen Betätigung der Spannleiste 11, 12 formschlüssig verbunden. Mittels eines Werkzeuges 24 kann die Spannleiste 11, 12 entgegen ihrem Vorspannmoment geöffnet werden. (Fig. 2).
Zwischen den Spannleisten 11, 12 ist ein z. B. durch Druckluft druckmittelbeaufschlagbarer Schlauch 26, der sich parallel zu den Spannleisten 11, 12 erstreckt, angeordnet. Der Schlauch 26 ist beidseitig an seinem jeweiligen Ende in der Nähe der Lagerböcke 8, 9 durch längsgeschlitzte, die Schlauchenden aufnehmende rohrförmige Führungen 27, 28 gehalten, die jeweils in einer Bohrung der Einsatzleiste 2 gehalten sind (Fig. 3). Somit nimmt der Schlauch 26 eine definierte Lage zwischen den Spannleisten 11, 12 ein. Der Schlauch 26 ist etwa mittig an seiner Unterseite mit einem Anschlußrohr 29, z. B. einem Gewindestift mit Bohrung, versehen, welches durch eine Befestigungsleiste 31 für den Schlauch 26 geführt und nachfolgend kraftschlüssig mit einer Muffe 32 verbunden ist, welche an ihrem Umfang voneinander beabstandete Dichtringe 33 aufweist. Diese Muffe 32 ist mit einem im unteren Teil der Einsatzleiste 2 angeordneten Flansch 34 verbunden, welcher mit einem sich an der Unterseite der Einsatzleiste 2 in einer Nut erstreckenden Pneumatikschlauch 36 in Verbindung steht. Die Muffe 32 mit den Dichtringen 33 dient dabei als luftdichte Schnellverbindung gegenüber dem Flansch 34. Der Pneumatikschlauch 36 (Fig. 2) steht über den Formzylinder 1 über bekannte Lufzufuhrsysteme, z. B. eine bekannte Dreheinführung nach DE 39 43 119 C1 über einen Achszapfen des Formzylinders 1, sowie über ein nicht dargestelltes Ventil in Verbindung. Die Befestigungsleiste 31 ist mittels Schrauben 37 im Unterteil der Einsatzleiste 2 befestigt. Das Anschlußrohr 29 kann mittels einer Mutter 38 im Schlauch 26 befestigt sein. Der Flansch 34 kann mittels einer Schraube 39 im Unterteil der Einsatzleiste 2 befestigt sein. Im Ruhezustand nehmen die Spannleisten 11, 12 die in Fig. 4 dargestellte Position ein. In dieser Position wird die Druckplatte 6 mit ihrem abgewinkelten Ende an der Einhängekante 3 eingehängt (Fig. 5). Zum Spannen bzw. zum Abnehmen der Druckplatte wird der Schlauch 26 (Pfeilrichtung B in Fig. 5) mit Druckluft gefüllt, etwa 6 bis 8 bar. Bedingt durch die Druckkraft werden die Spannleisten 11, 12 entgegen dem Vorspannmoment der Drehstabfedern 14, 16 geschwenkt, so daß das abgewinkelte Ende der Druckplatte 7, wie in Fig. 5 dargestellt, frei auf dem zweiten Ende 21 der Spannleiste 12 aufliegt. In dieser Position der Spannleisten 11, 12 kann entweder die Druckplatte abgenommen oder durch Entlüftung des Schlauches 26 über ein Ventil gespannt werden. Die Luft entweicht entgegen der Pfeilrichtung B in Fig. 5.Between the
Mit der erfindungsgemäßen Vorrichtung kann sowohl eine einzige Druckplatte 6, 7 auf den Umfang des Formzylinders 1 aufgebracht werden als auch wie in der Praxis üblich, in Umfangsrichtung zwei Platten 6, 7. Für diesen Fall sind zwei Einsatzleisten 2 vorzusehen. Üblicherweise sind in axialer Richtung des Formzylinders 1 vier Druckplatten 6, 7 nebeneinander aufgebracht. Dies läßt sich mit der entsprechenden Anordnung der Einsatzleisten 2 auf dem Formzylinder 1 ausführen. Ein weiterer, in einer Nut an der Unterseite der Einsatzleiste 2 angeordneter Pneumatikschlauch 41 ist zur Herstellung der Luftzufuhr mit einer weiteren in axialer Richtung in einer Nut auf dem Formzylinder 1 angeordneten Einsatzleiste 2 vorgesehen. Mit 42 sind Löcher zur Befestigung der Einsatzleiste 2 in einer Nut des Formzylinders 1 bezeichnet.With the device according to the invention, both a
Bei einer möglichen Drehrichtungsumkehr des Formzylinders 1 wird in Abwandlung der Darstellung nach Fig. 5 die Abkantung der Druckplatte 7 auf die Einhängekante 4 gehängt und die Abkantung der Druckplatte 6 wird von dem zweiten Ende 19 der Spannleiste 11 hintergriffen.In the event of a possible reversal of the direction of rotation of the forme cylinder 1, in a modification of the illustration according to FIG. 5, the bend of the
Als Hilfsenergie zur Betätigung des Schlauches 26 wird vorzugsweise Druckluft mit einem Druck von 6 bis 8 bar verwendet, die aus einer Druckluftanlage zugeführt wird. Der Schlauch 26 könnte auch über eine Hydraulikanlage mit Hydraulikflüssigkeit beaufschlagt werden.Compressed air with a pressure of 6 to 8 bar, which is supplied from a compressed air system, is preferably used as auxiliary energy for actuating the
- 11
- FormzylinderForme cylinder
- 22nd
- EinsatzleisteInsert bar
- 33rd
- Einhängekante (2)Hanging edge (2)
- 44th
- Einhängekante (2)Hanging edge (2)
- 55
- --
- 66
- Druckplatteprinting plate
- 77
- Druckplatteprinting plate
- 88th
- Lagerbock (2)Bearing block (2)
- 99
- Lagerbock (2)Bearing block (2)
- 1010th
- Zylinderschraubecylinder head screw
- 1111
- Spannleiste (2)Tensioning strip (2)
- 1212th
- Spannleiste (2)Tensioning strip (2)
- 1313
- Symmetrieachse (2)Axis of symmetry (2)
- 1414
- DrehstabfederTorsion bar spring
- 1515
- --
- 1616
- DrehstabfederTorsion bar spring
- 1717th
- Ende, erstes (11)End, first (11)
- 1818th
- Ende, erstes (12)End, first (12)
- 1919th
- Ende, zweites (11)End, second (11)
- 2020th
- --
- 2121
- Ende, zweites (12)End, second (12)
- 2222
- Spannhebel (11)Tension lever (11)
- 2323
- Spannhebel (12)Tension lever (12)
- 2424th
- WerkzeugTool
- 2525th
- --
- 2626
- Schlauchtube
- 2727
- Führung (26)Leadership (26)
- 2828
- Führung (26)Leadership (26)
- 2929
- AbschlußrohrEnd pipe
- 3030th
- --
- 3131
- Befestigungsleiste (26)Mounting bracket (26)
- 3232
- Muffe (29)Sleeve (29)
- 3333
- DichtringSealing ring
- 3434
- Flansch (2)Flange (2)
- 3535
- --
- 3636
- PneumatikschlauchPneumatic hose
- 3737
- Schraubescrew
- 3838
- Muttermother
- 3939
- Schraubescrew
- 4040
- --
- 4141
- PneumatikschlauchPneumatic hose
- 4242
- Lochhole
- BB
- PfeilrichtungArrow direction
Claims (5)
- A device for clamping flexible printing plates on a form cylinder of a rotary printing machine, having grooves, running parallel to the axis in the outer surface of the form cylinder, in which tensioning strips (11, 12) are arranged, which tensioning strips are pivotally arranged in an insert strip having an approximately U-shaped profile and may be pre-tensioned towards one another by spring force, characterized in that the insert strips (2) are provided with a hanging edge (3; 4) in each case at their free ends, and in that for moving the tensioning strips (11, 12) away from each other a hose (26) which may be acted upon by a pressurized medium is provided therebetween.
- A device according to Claim 1, characterized in that the tensioning strips (11; 12) may be moved away from each other manually, by means of a tool (24).
- A device according to Claims 1 and 2, characterized in that, as seen in profile, the tensioning strip (11, 12) comprises in each case a one-armed lever which is pivotally mounted by its first end (17, 18) on a bearing block (8, 9), and in that the tensioning strip (11, 12) is constructed to be claw-shaped at its second end (19, 21) for reaching behind a bent-off edge of the printing plate (6, 7).
- A device according to Claims 1 to 3, characterized in that the tensioning strip (11, 12) is pre-tensioned by means of a torsion spring (14, 16) clamped with force fit and form fit in the bearing blocks (8, 9).
- A device according to Claims 1 to 4, characterized in that tensioning levers (22, 23) provided with a means for receiving a tool (24) are mounted at the ends of the tensioning strips (11, 12).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4244077A DE4244077C2 (en) | 1992-12-24 | 1992-12-24 | Device for clamping flexible printing plates on a forme cylinder of a rotary printing machine |
| DE4244077 | 1992-12-24 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0606604A1 EP0606604A1 (en) | 1994-07-20 |
| EP0606604B1 true EP0606604B1 (en) | 1997-07-30 |
Family
ID=6476537
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP93120243A Expired - Lifetime EP0606604B1 (en) | 1992-12-24 | 1993-12-16 | Device for clamping flexible printing plates on the forme cylinder of a printing machine |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US5396843A (en) |
| EP (1) | EP0606604B1 (en) |
| JP (1) | JPH06226954A (en) |
| DE (2) | DE4244077C2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10015165A1 (en) * | 2000-03-27 | 2001-10-18 | Koenig & Bauer Ag | Methods and devices for supplying pressure medium |
| WO2002043962A2 (en) | 2000-11-28 | 2002-06-06 | Koenig & Bauer Aktiengesellschaft | Device for securing a packing and method for producing a channel |
| US6598530B1 (en) | 1999-05-29 | 2003-07-29 | Koenig & Bauer Aktiengesellschaft | Method for fastening a flexible plate |
| DE10255707A1 (en) * | 2002-11-29 | 2004-06-17 | Koenig & Bauer Ag | Rotary body for printer, has hollow cavity with fitted profiled body holding functional device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4420314C2 (en) * | 1994-06-10 | 1999-02-04 | Koenig & Bauer Albert Ag | Device for fastening and tensioning printing plates with "Z" -shaped ends |
| DE19549707B4 (en) * | 1994-11-16 | 2005-03-03 | Kabushiki Kaisha Tokyo Kikai Seisakusho | Forme plate locking appts. for rotary printing machine - has forme plate retainer spaced from periphery of forme cylinder, with forme plate locking hook section alignment |
| US5921183A (en) * | 1997-02-14 | 1999-07-13 | Heidelberger Druckmaschienen Ag | Narrow gap plate with insertable lock-up mechanism, and method of using the same |
| US5915303A (en) * | 1998-02-17 | 1999-06-29 | Goss Graphic Systems, Inc. | Spring clip plate retainer |
| DE19924784C2 (en) * | 1999-05-29 | 2001-05-31 | Koenig & Bauer Ag | Device for fastening flexible plates on a cylinder of a rotary printing machine with reversal of the direction of rotation |
| DE19924786B4 (en) * | 1999-05-29 | 2004-11-04 | Koenig & Bauer Ag | Device for attaching a flexible plate to a cylinder of a rotary printing press |
| DE10056167A1 (en) * | 1999-11-15 | 2001-05-17 | Heidelberger Druckmasch Ag | Tension device for indentation on surface of printing cylinder in printing apparatus of rotary printing press has locking and unlocking of tension element on tension shaft |
| DE10004143A1 (en) * | 2000-01-31 | 2001-08-09 | Koenig & Bauer Ag | Arrangement for emptying hoses filled with working fluid |
| DE10024087C2 (en) * | 2000-05-18 | 2002-05-08 | Torald Rohloff | Device for mounting a printing plate on a cylinder of a rotary printing press |
| US6401617B1 (en) * | 2000-07-18 | 2002-06-11 | F. Richard Lyndhurst | Printing plate lockup mechanism |
| DE10218474A1 (en) * | 2002-04-25 | 2003-11-20 | Koenig & Bauer Ag | Devices for fastening at least one elevator on a cylinder of a rotary printing press and a printing unit with this device |
| DE10244574A1 (en) | 2002-09-25 | 2004-04-15 | Koenig & Bauer Ag | Cylinder of a printing press |
| DE10250684B3 (en) * | 2002-10-31 | 2004-04-01 | Koenig & Bauer Ag | Production of a rotational body of a printing machine comprises forming profiled bodies by welding material to opposite-lying walls of a groove in the peripheral direction of the balls in the machine |
| DE102004001935B3 (en) * | 2004-01-14 | 2005-06-23 | Koenig & Bauer Ag | Printing machine cylinder incorporating hollow body setting mechanism with coupling element at one or both ends incorporating pressure medium feed for its reversible deformation |
| CN118810228B (en) * | 2024-09-18 | 2025-01-10 | 德化县万顺印刷有限责任公司 | Semi-automatic plate loading system of printing machine |
Family Cites Families (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1209821A (en) * | 1952-06-13 | 1960-03-03 | Const Mecaniques Et D Emboutis | Method of fixing thin plates on cylinders, in particular on rotary printing machines |
| DE1144294B (en) * | 1959-05-22 | 1963-02-28 | Carl Allers Etablissement As | Device for fastening a flexible printing plate on the forme cylinder of a rotary printing press |
| DE1172690B (en) * | 1961-06-14 | 1964-06-25 | Maschf Augsburg Nuernberg Ag | Device for clamping flexible printing plates on the forme cylinder of rotary printing machines |
| DE1128442B (en) * | 1960-03-26 | 1962-04-26 | Maschf Augsburg Nuernberg Ag | Device for clamping flexible printing plates on the forme cylinder of rotary printing machines |
| US3425348A (en) * | 1966-03-21 | 1969-02-04 | Miehle Goss Dexter Inc | Clamping arrangement for blanket in printing press |
| US3625151A (en) * | 1969-07-07 | 1971-12-07 | Baker Perkins Ltd | Printing plate locking device |
| DE1936396A1 (en) * | 1969-07-17 | 1971-01-28 | Baker Perkins Ltd | Pressure plate locking device |
| US3715981A (en) * | 1970-06-29 | 1973-02-13 | Hamilton Tool Co | Fluid actuator and lock for printing plate cylinders |
| US3757691A (en) * | 1972-06-12 | 1973-09-11 | North American Rockwell | Printing cylinder |
| DE2620427C3 (en) * | 1976-05-08 | 1979-03-08 | Albert-Frankenthal Ag, 6710 Frankenthal | Device for attaching flexible printing plates to the plate cylinder of rotary printing presses |
| DE3416187A1 (en) * | 1984-05-02 | 1985-11-07 | Fa. Wilhelm Barenschee, 2120 Lüneburg | PLATE CYLINDER ARRANGEMENT FOR FLEXIBLE PRINT PLATES |
| DE3626243A1 (en) * | 1986-08-02 | 1988-02-04 | Koenig & Bauer Ag | PRINT PLATE FASTENING AND TENSIONING DEVICE |
| DE3702032A1 (en) * | 1987-01-24 | 1988-08-04 | Basf Ag | DEVICE FOR TENSIONING PRINTING PLATES |
| DE3731039A1 (en) * | 1987-09-16 | 1989-03-30 | Koenig & Bauer Ag | DEVICE FOR CLAMPING FLEXIBLE PRINT PLATES ON THE PLATE CYLINDER OF A ROTARY PRINTING MACHINE |
| DE3731779A1 (en) * | 1987-09-22 | 1989-03-30 | Koenig & Bauer Ag | DEVICE FOR CLAMPING FLEXIBLE PRINTING PLATES ON FORM CYLINDERS OF ROTARY PRINTING MACHINES |
| CA2007357A1 (en) * | 1989-01-19 | 1990-07-19 | Richard B. Schroeder | Double truck printing registration system for a rotary printing press |
| DE3943119C1 (en) * | 1989-12-27 | 1991-06-20 | Man Roland Druckmaschinen Ag, 6050 Offenbach, De |
-
1992
- 1992-12-24 DE DE4244077A patent/DE4244077C2/en not_active Expired - Fee Related
-
1993
- 1993-12-16 DE DE59307019T patent/DE59307019D1/en not_active Expired - Fee Related
- 1993-12-16 EP EP93120243A patent/EP0606604B1/en not_active Expired - Lifetime
- 1993-12-22 US US08/171,172 patent/US5396843A/en not_active Expired - Fee Related
- 1993-12-24 JP JP5327941A patent/JPH06226954A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6598530B1 (en) | 1999-05-29 | 2003-07-29 | Koenig & Bauer Aktiengesellschaft | Method for fastening a flexible plate |
| EP1350623A2 (en) | 1999-05-29 | 2003-10-08 | Koenig & Bauer Aktiengesellschaft | Device for fastening a flexible printing plate |
| EP1350623B1 (en) * | 1999-05-29 | 2005-09-14 | Koenig & Bauer Aktiengesellschaft | Device for fastening two flexible printing plates |
| DE10015165A1 (en) * | 2000-03-27 | 2001-10-18 | Koenig & Bauer Ag | Methods and devices for supplying pressure medium |
| DE10015165B4 (en) * | 2000-03-27 | 2004-01-29 | Koenig & Bauer Ag | Device for supplying pressure medium |
| US6799513B2 (en) * | 2000-03-27 | 2004-10-05 | Koenig & Bauer Aktiengesellschaft | Method and device for supplying hydraulic fluid |
| WO2002043962A2 (en) | 2000-11-28 | 2002-06-06 | Koenig & Bauer Aktiengesellschaft | Device for securing a packing and method for producing a channel |
| DE10058996C1 (en) * | 2000-11-28 | 2002-06-13 | Koenig & Bauer Ag | Pulling-up mechanism fixing device has channel with single one-lever fixing device in each section perpendicular to axial direction of cylinder |
| US6862991B2 (en) | 2000-11-28 | 2005-03-08 | Koenig & Bauer Ajtuebgesekkscgaft | Cylinder and device for securing a flexible packing on the cylinder |
| DE10255707A1 (en) * | 2002-11-29 | 2004-06-17 | Koenig & Bauer Ag | Rotary body for printer, has hollow cavity with fitted profiled body holding functional device |
| DE10255707B4 (en) * | 2002-11-29 | 2009-11-26 | Koenig & Bauer Aktiengesellschaft | Rotary body of a printing press with at least one cavity |
Also Published As
| Publication number | Publication date |
|---|---|
| US5396843A (en) | 1995-03-14 |
| DE4244077A1 (en) | 1994-06-30 |
| EP0606604A1 (en) | 1994-07-20 |
| DE4244077C2 (en) | 1995-06-08 |
| JPH06226954A (en) | 1994-08-16 |
| DE59307019D1 (en) | 1997-09-04 |
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