EP0529446B1 - Device for fixing and tensioning a blanket on a cylinder of a printing machine - Google Patents
Device for fixing and tensioning a blanket on a cylinder of a printing machine Download PDFInfo
- Publication number
- EP0529446B1 EP0529446B1 EP92113947A EP92113947A EP0529446B1 EP 0529446 B1 EP0529446 B1 EP 0529446B1 EP 92113947 A EP92113947 A EP 92113947A EP 92113947 A EP92113947 A EP 92113947A EP 0529446 B1 EP0529446 B1 EP 0529446B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- tensioning
- blanket
- cylinder
- rubber blanket
- cam disc
- 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
Images
Classifications
-
- 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 fastening and tensioning a printing blanket on a cylinder of a printing press according to the preamble of claim 1.
- a blanket tensioning device in which threaded bolts are arranged in the cylinder pit, which are connected via lever arms to the tensioning strips for the blanket. When the threaded bolts are actuated, the tensioning strips are pivoted and thus cause the tension of the rubber blanket. Tensioning the rubber blanket is, however, severely limited with regard to the tensioning path, since the swivel angle of the lever arms is limited.
- a blanket tensioning device in which a locking element is arranged in the tensioning shaft is automatically pressed into a locking position by a closing curve.
- the tensioning shafts of this device are actuated by worm segments and a worm as well as by bevel gear by means of tensioning screws, which results in a high power requirement due to the high frictional resistance of the worm.
- the span of the tensioning shafts is limited because the locking elements change in their radii. Thus, a longer rubber blanket end cannot be clamped, which later has to be put around due to signs of wear at the start of printing.
- the invention has for its object to provide a device for attaching and tensioning a printing blanket on a cylinder of a printing press, which makes it possible to hold the blanket while pulling and then to stretch a long blanket end with little effort.
- the arrangement of a lock which is actuated by the same controls with which the blanket is stretched, allows easy handling of holding the blanket start when attaching the blanket on the cylinder.
- a toothed gear smooth movement is achieved in rubber blanket tensioning in connection with a toothed rack, so that only a small amount of force is required to achieve the To actuate clamping shafts.
- ⁇ As a result of a long tensioning path of the tensioning shafts by the angular amount ⁇ , it is possible to accommodate a long spare piece of a blanket end so that this can be added in the event of wear or other damage at the beginning of the blanket.
- Fig. 1 shows a cross section through the inventive device in the cylinder channel in the rest position along the line A - B of FIG. 3, but with a rubber blanket inserted at the start of printing.
- a tensioning shaft 3 extending in the axial direction is arranged in a known manner and has teeth 4 on its circumference.
- a bearing block 7 is fastened by means of screws 5, which supports a shaft 8 which is connected in a rotationally fixed manner to an intermediate gear 11 via a feather key 9.
- the shaft 8 is by means of locking rings 12; 13 performed on the bearing block 7.
- a cam disk 16 is connected in a rotationally fixed manner to the shaft 8 via a fastening screw 14.
- a bore 18 in the recess 6 of the cylinder pit 1 there is a bore 18 in the recess 6 of the cylinder pit 1 with an additional bore 19 for receiving a clamping screw 21.
- the clamping screw 21 is supported on the one hand near the cylinder circumference on a holding plate 22 which has a hole 23 for actuating the clamping screw 21 and which is fastened in the cylinder pit 1 by means of stud bolts, not shown.
- the clamping screw 21 is supported in the additional bore 19 on a thrust bearing 24 with an intermediate washer 26 via a pin 25.
- the clamping screw 21 is surrounded over half its length with a toothed rack 27 which has a threaded hole which is in operative connection with the thread of the clamping screw 21.
- the rack 27 is also held by the bearing block 7.
- the tensioning shaft 3 has a milling 28 which runs in the axial direction and which receives a hook strip 29 for hanging the rubber blanket end 31 with the reinforcing plate 32 and the arm 33 of a hook-shaped locking device.
- the locking device consists of the arm 33 with a hook 34 which extends at a right angle at one end.
- the other side of the arm 33 has a bearing piece 36 which is approximately circular in cross section, whereby supports the bearing piece 36 in a further recess 37, which is located in the radial direction of the tensioning shaft 3 for the milling 28.
- the bearing piece 36 has two fork-like guides 38 running at right angles, in the same direction as the hook 34, to which both ends of a pin 39 are guided.
- the pin 39 is arranged transversely to the longitudinal axis through the upper end of a plunger 41.
- the tappet 41 is operatively connected at its lower end to the cam disk 16 and can be actuated against the force of a compression spring 42 surrounding the tappet 41.
- the compression spring 42 is delimited on the one hand by a radial blind hole in the tensioning shaft 3 and on the other hand by a washer 43 locked on the tappet 41.
- this radial blind bore is continued by an elongated bore with a reduced diameter for receiving the plunger 41.
- the device for fastening and tensioning a printing blanket on a cylinder of a printing press consists of an approximately on the left side of the center line 17 of the above-described device, with the help of which the rubber blanket 31 in the tensioning shaft 3 while laying around the Blanket cylinder 2 is held and can be tensioned.
- the device for tensioning the other blanket end 31 ' On the right side of the center line 17 is the device for tensioning the other blanket end 31 ', which has been placed around the blanket cylinder 2.
- the components arranged on this right-hand side of the center line 17 are each provided with a 'after the reference number, for example tensioning shaft 3'.
- the function of the entire device is as described below.
- the rubber blanket 31 is brought with its reinforcing plate 32 according to FIG. 1 behind the hook bar 29 into the cutout 28.
- the cam of the cam disk 16 disengages from the tappet 41.
- the tappet 41 thus moves downward in accordance with the force of the compression spring 42.
- the pin 39 brings the fork-like guide 38 down; the hook 34 grips behind the reinforcement plate 32 of the rubber blanket start 31 and is now in the position according to FIG. 2.
- the intermediate gear 11 is moved over the rack 27 by means of the clamping screw 21.
- the rubber blanket is stretched.
- the other tensioning shaft 3 can also be moved further in the direction of the arrow x in order to tension the rubber blanket further.
- the clamping process is now complete.
- the tensioning shaft 3 ' is moved by the amount of the angle ⁇ against the direction of the arrow x by rotating the tensioning screw 21'.
- the tensioning shaft 3 ' is thus in the right position with the angle ⁇ according to FIG. 4.
- the printing blanket is relaxed.
- the tensioning shaft 3 is brought into the left position according to FIG. 4 by means of the tensioning screw 21.
- the rubber blanket 31 has been adjusted in the arrow direction x by the angle ⁇ .
- the possible damaged area of the printing blanket is now outside the printing area and is contained in whole or in part in the area of the angle ⁇ .
- the angle ⁇ is a maximum of 135 o .
Description
Die Erfindung betrifft eine Einrichtung zum Befestigen und Spannen eines Drucktuches auf einem Zylinder einer Druckmaschine gemäß dem Oberbegriff des Patentanspruches 1.The invention relates to a device for fastening and tensioning a printing blanket on a cylinder of a printing press according to the preamble of
Im allgemeinen erfordert es von dem Drucker viel Geschick, das Gummituch auf den Gummituchzylinder aufzubringen, festzuhalten und zu spannen, da das am Druckende nicht eingespannte Gummituch während des Spannvorganges am Druckanfang aus der Halterung rutschen kann.In general, it requires a lot of skill from the printer to apply, hold and tension the blanket on the blanket cylinder, since the blanket that is not clamped at the end of the print can slip out of the holder during the tensioning process at the start of printing.
Gemäß DE-PS 29 53 815 ist eine Gummituchspannvorrichtung bekannt, bei welcher Gewindebolzen in der Zylindergrube angeordnet sind, welche über Hebelarme mit den Spannleisten für das Gummituch verbunden sind. Bei Betätigung der Gewindebolzen werden die Spannleisten verschwenkt und bewirken somit die Spannung des Gummituches. Das Spannen des Gummituches ist jedoch bezüglich des Spannweges stark begrenzt, da der Schwenkwinkel der Hebelarme begrenzt ist.According to DE-PS 29 53 815 a blanket tensioning device is known in which threaded bolts are arranged in the cylinder pit, which are connected via lever arms to the tensioning strips for the blanket. When the threaded bolts are actuated, the tensioning strips are pivoted and thus cause the tension of the rubber blanket. Tensioning the rubber blanket is, however, severely limited with regard to the tensioning path, since the swivel angle of the lever arms is limited.
Weiterhin ist gemäß DE 32 19 741 eine Gummituchspannvorrichtung bekannt, bei welcher in der Spannwelle ein Verriegelungselement angeordnet ist, das von einer Schließkurve selbsttätig in eine Verriegelungsstellung gedrückt wird. Die Spannwellen dieser Vorrichtung werden jeweils über Schneckensegmente und eine Schnecke sowie über Kegelradgetriebe mittels Spannschrauben betätigt, was einen hohen Kraftbedarf infolge des hohen Reibungswiderstandes der Schnecke zur Folge hat. Weiterhin ist der Spannweg der Spannwellen begrenzt, da sich die Verriegelungselemente in ihren Radien verändern. Somit kann ein längeres Gummituchende nicht festgeklemmt werden, welches später infolge Verschleißerscheinungen am Druckanfang umgehangen werden muß.Furthermore, according to DE 32 19 741 a blanket tensioning device is known, in which a locking element is arranged in the tensioning shaft is automatically pressed into a locking position by a closing curve. The tensioning shafts of this device are actuated by worm segments and a worm as well as by bevel gear by means of tensioning screws, which results in a high power requirement due to the high frictional resistance of the worm. Furthermore, the span of the tensioning shafts is limited because the locking elements change in their radii. Thus, a longer rubber blanket end cannot be clamped, which later has to be put around due to signs of wear at the start of printing.
Der Erfindung liegt die Aufgabe zugrunde, eine Einrichtung zum Befestigen und Spannen eines Drucktuches auf einem Zylinder einer Druckmaschine zu schaffen, welche es ermöglicht, das Gummituch während des Aufziehens festzuhalten und anschließend ein langes Gummituchende mit geringem Kraftaufwand zu spannen.The invention has for its object to provide a device for attaching and tensioning a printing blanket on a cylinder of a printing press, which makes it possible to hold the blanket while pulling and then to stretch a long blanket end with little effort.
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
Bei der Anwendung der Erfindung werden insbesondere nachfolgende Vorteile erzielt. Die Anordnung einer Arretierung , die durch die gleichen Bedienungselemente betätigt wird, mit denen das Gummituch gespannt wird, ermöglicht eine einfache Handhabung des Festhaltens des Drucktuchanfanges beim Befestigen des Drucktuches auf dem Zylinder. Durch den Einsatz eines Zahnradgetriebes wird beim Gummituchspannen in Verbindung mit einer Zahnstange eine Leichtgängigkeit erzielt, so daß nur noch ein geringer Kraftaufwand erforderlich ist, um die Spannwellen zu betätigen. Infolge eines langen Spannweges der Spannwellen um den Winkelbetrag α ist es möglich, ein langes Reservestück eines Gummituchendes unterzubringen, damit dies im Falle von Verschleiß bzw. anderer Beschädigungen am Drucktuchanfang nachgesetzt werden kann.The following advantages are achieved in particular when using the invention. The arrangement of a lock, which is actuated by the same controls with which the blanket is stretched, allows easy handling of holding the blanket start when attaching the blanket on the cylinder. Through the use of a toothed gear, smooth movement is achieved in rubber blanket tensioning in connection with a toothed rack, so that only a small amount of force is required to achieve the To actuate clamping shafts. As a result of a long tensioning path of the tensioning shafts by the angular amount α, it is possible to accommodate a long spare piece of a blanket end so that this can be added in the event of wear or other damage at the beginning of the blanket.
Die Erfindung soll nachstehend an einem Ausführungsbeispiel näher erläutert werden. In der zugehörigen Zeichnung zeigen
- Fig. 1
- einen Schnitt längs der Linie A - B nach Fig. 3 mit der Darstellung der erfindungsgemäßen Einrichtung im Zylinderkanal in Ruhestellung, jedoch mit am Druckanfang eingelegten Gummituchende;
- Fig. 2
- eine Darstellung gemäß Fig. 1, jedoch in Arbeitsstellung mit am Druckanfang eingelegtem und verriegeltem Gummituchende sowie dem am Druckende eingelegten und gespannten Gummituch;
- Fig. 3
- den Schnitt C - D nach Fig. 1;
- Fig. 4
- eine Darstellung gemäß Fig. 1, jedoch mit dem um den Winkel α nachgesetzten Gummituchanfang.
- Fig. 1
- a section along the line A - B of Figure 3 with the representation of the inventive device in the cylinder channel in the rest position, but with inserted rubber blanket at the beginning of printing.
- Fig. 2
- a representation of Figure 1, but in the working position with inserted and locked rubber blanket end at the beginning of printing and the inserted and tensioned rubber blanket at the printing end.
- Fig. 3
- the section C - D of FIG. 1;
- Fig. 4
- a representation of FIG. 1, but with the beginning of the rubber blanket by the angle α.
Fig. 1 zeigt einen Querschnitt durch die erfindungsgemäße Einrichtung im Zylinderkanal in Ruhestellung gemäß der Linie A - B nach Fig. 3, jedoch mit am Druckanfang eingelegtem Gummituch. In der Zylindergrube 1 eines Gummituchzylinders 2 ist in bekannter Art und Weise eine in axialer Richtung verlaufende Spannwelle 3 angeordnet, welche an ihrem Umfang Zähne 4 aufweist. In einer Vertiefung 6 der Zylindergrube 1 ist ein Lagerbock 7 mittels Schrauben 5 befestigt, welcher eine Welle 8 trägt, die über eine Paßfeder 9 mit einem Zwischenzahnrad 11 drehfest verbunden ist. Die Welle 8 ist mittels Sicherungsringen 12; 13 auf dem Lagerbock 7 geführt. Mit der Welle 8 ist über eine Befestigungsschraube 14 eine Nockenscheibe 16 drehfest verbunden. In Richtung der in radialer Richtung verlaufenden Mittellinie 17 befindet sich in der Vertiefung 6 der Zylindergrube 1 eine Bohrung 18 mit Zusatzbohrung 19 zur Aufnahme einer Spannschraube 21. Die Spannschraube 21 stützt sich einerseits in der Nähe des Zylinderumfanges an einem Halteblech 22 ab, welches eine Bohrung 23 zum Betätigen der Spannschraube 21 aufweist und welches durch nicht dargestellte Stehbolzen in der Zylindergrube 1 befestigt ist. Die Spannschraube 21 stützt sich andererseits in der Zusatzbohrung 19 auf einem Drucklager 24 mit Zwischenscheibe 26 über einen Zapfen 25 ab. Die Spannschraube 21 ist über die Hälfte ihrer Länge mit einer Zahnstange 27 umgeben, welche ein Gewindeloch besitzt, das mit dem Gewinde der Spannschraube 21 in Wirkverbindung steht. Die Zahnstange 27 wird ebenfalls von dem Lagerbock 7 gehalten. Die Spannwelle 3 besitzt eine in axialer Richtung verlaufende Ausfräsung 28, welche eine Hakenleiste 29 für das Einhängen des Gummituchendes 31 mit dem Armierungsblech 32 sowie den Arm 33 einer hakenförmigen Arretierung aufnimmt. Die Arretierung besteht aus dem Arm 33 mit einem an seinem einen Ende rechtwinklig verlaufenden Haken 34. Die andere Seite des Armes 33 weist ein im Querschnitt etwa kreisförmig verlaufendes Lagerstück 36 auf, wobei sich das Lagerstück 36 in einer weiteren, zur Ausfräsung 28 in radialer Richtung der Spannwelle 3 befindlichen Ausnehmung 37 abstützt. Das Lagerstück 36 besitzt zwei rechtwinklig, in gleicher Richtung wie der Haken 34, verlaufende gabelartige Führungen 38, zu welchen beide Enden eines Stiftes 39 geführt sind. Der Stift 39 ist quer zur Längsachse durch das obere Ende eines Stößels 41 angeordnet. Der Stößel 41 steht an seinem unteren Ende mit der Nockenscheibe 16 in Wirkverbindung und ist gegen die Kraft einer den Stößel 41 umgebenden Druckfeder 42 betätigbar. Die Druckfeder 42 wird einerseits durch eine radiale Sacklochbohrung in der Spannwelle 3 und andererseits durch eine auf dem Stößel 41 arretierte Scheibe 43 begrenzt. Diese radiale Sacklochbohrung wird jedoch noch durch eine verlängerte Bohrung mit verringertem Durchmesser fortgesetzt zur Aufnahme des Stößels 41.Fig. 1 shows a cross section through the inventive device in the cylinder channel in the rest position along the line A - B of FIG. 3, but with a rubber blanket inserted at the start of printing. In the
Gemäß Fig. 1 und 2 besteht die Einrichtung zum Befestigen und Spannen eines Drucktuches auf einem Zylinder einer Druckmaschine aus einer in etwa auf der linken Seite der Mittellinie 17 der vorbeschriebenen Einrichtung, mit Hilfe welcher das Gummituchanfang 31 in der Spannwelle 3 während des Herumlegens um den Gummituchzylinder 2 festgehalten wird und gespannt werden kann. Auf der rechten Seite der Mittellinie 17 befindet sich die Einrichtung zum Spannen des anderen Gummituchendes 31', welches um den Gummituchzylinder 2 herumgelegt worden ist. Die auf dieser rechten Seite der Mittellinie 17 angeordneten Bauteile sind jeweils mit einem ' nach dem Bezugszeichen versehen, beispielsweise Spannwelle 3'.1 and 2, the device for fastening and tensioning a printing blanket on a cylinder of a printing press consists of an approximately on the left side of the
Diese Teile sind auch in der oberen Darstellung der Fig. 3 enthalten. Der Unterschied zwischen den beiden Einrichtungen besteht darin, daß die rechte Einrichtung nicht zum Festhalten beim Herumlegen, sondern nur zum Spannen vorgesehen ist und demzufolge eine Nockenscheibe, ein Stößel, eine Feder, ein Lagerstück mit Arm und Haken nicht benötigt wird. Die übrigen Bauteile werden jedoch benötigt.These parts are also included in the upper illustration in FIG. 3. The difference between the two devices is that the right device is not intended to hold when lying around, but only for tensioning and consequently a cam, a plunger, a spring, a bearing piece with arm and hook is not required. However, the remaining components are required.
Die Funktion der gesamten Einrichtung ist wie nachfolgend beschrieben. Der Gummituchanfang 31 wird mit seinem Armierungsblech 32 gemäß Fig. 1 hinter die Hakenleiste 29 in die Ausfräsung 28 gebracht. Durch Bewegen des Zwischenzahnrades 11 in Pfeilrichtung x kommt der Nocken der Nockenscheibe 16 außer Eingriff mit dem Stößel 41. Somit bewegt sich der Stößel 41 entsprechend der kraft der Druckfeder 42 nach unten. Der Stift 39 bringt die gabelartige Führung 38 nach unten; der Haken 34 faßt hinter das Armierungsblech 32 des Gummituchanfangs 31 und befindet sich nunmehr in der Stellung nach Fig. 2. Das Zwischenzahnrad 11 wird dabei über die Zahnstange 27 mittels der Spannschraube 21 bewegt.The function of the entire device is as described below. The
Nach dem Herumlegen des Gummituches um den Gummituchzylinder 2 wird das Armierungsblech 32' des Gummituchendes 31' mit der Hakenleiste 29' in die Ausnehmung der Spannwelle 3' eingebracht und das Zwischenzahnrad 11' wird in Pfeilrichtung x mittels der Spannschraube 21' sowie der Zahnstange 27' bewegt, so daß sich die Spannwelle 3' ebenfalls in Pfeilrichtung x bewegt. Das Gummituch ist gespannt. Ebenfalls kann die andere Spannwelle 3 auch noch in Pfeilrichtung x weiterbewegt werden, um das Gummituch weiter zu spannen. Damit ist der Spannvorgang abgeschlossen.After placing the rubber blanket around the
Soll das Drucktuch beispielsweise wegen Verschleiß nachgesetzt werden, so ist wie folgt zu verfahren. Gemäß Fig. 2 und 3 wird durch das Verdrehen der Spannschraube 21' die Spannwelle 3' entgegen der Pfeilrichtung x um den Winkelbetrag α bewegt. Somit befindet sich die Spannwelle 3' in der rechten Position mit dem Winkel α nach Fig. 4. Das Drucktuch ist entspannt. Jetzt wird die Spannwelle 3 vermittelst der Spannschraube 21 in die linke Position nach Fig. 4 gebracht. Der Gummituchanfang 31 ist in Pfeilrichtung x um den Winkel α nachgestellt worden. Die mögliche schadhafte Stelle des Drucktuches befindet sich jetzt außerhalb des Druckbereiches und ist ganz oder teilweise im Bereich des Winkels α enthalten. Der Winkel α beträgt maximal 135o.If, for example, the printing blanket is to be replaced due to wear, proceed as follows. 2 and 3, the tensioning shaft 3 'is moved by the amount of the angle α against the direction of the arrow x by rotating the tensioning screw 21'. The tensioning shaft 3 'is thus in the right position with the angle α according to FIG. 4. The printing blanket is relaxed. Now the
- 11
- ZylindergrubeCylinder pit
- 1'1'
- ZylindergrubeCylinder pit
- 22nd
- GummituchzylinderBlanket cylinder
- 33rd
- SpannwelleTension shaft
- 3'3 '
- SpannwelleTension shaft
- 44th
- Zähneteeth
- 4'4 '
- Zähneteeth
- 55
- Schraubescrew
- 5'5 '
- Schraubescrew
- 66
- Vertiefungdeepening
- 6'6 '
- Vertiefungdeepening
- 77
- LagerbockBearing block
- 7'7 '
- LagerbockBearing block
- 88th
- Wellewave
- 8'8th'
- Wellewave
- 99
- Paßfederadjusting spring
- 9'9 '
- Paßfederadjusting spring
- 1010th
- --
- 1111
- ZwischenzahnradIdler gear
- 11'11 '
- ZwischenzahnradIdler gear
- 1212th
- SicherungsringCirclip
- 12'12 '
- SicherungsringCirclip
- 1313
- SicherungsringCirclip
- 13'13 '
- SicherungsringCirclip
- 1414
- BefestigungsschraubeFastening screw
- 1515
- --
- 1616
- NockenscheibeCam disc
- 1717th
- MittellinieCenter line
- 1818th
- Bohrungdrilling
- 18'18 '
- Bohrungdrilling
- 1919th
- ZusatzbohrungAdditional hole
- 19'19 '
- ZusatzbohrungAdditional hole
- 2020th
- --
- 2121
- SpannschraubeClamping screw
- 21'21 '
- SpannschraubeClamping screw
- 2222
- HalteblechBracket
- 22'22 '
- HalteblechBracket
- 2323
- Bohrungdrilling
- 23'23 '
- Bohrungdrilling
- 2424th
- DrucklagerThrust bearing
- 24'24 '
- DrucklagerThrust bearing
- 2525th
- ZapfenCones
- 25'25 '
- ZapfenCones
- 2626
- ZwischenscheibeWasher
- 26'26 '
- ZwischenscheibeWasher
- 2727
- ZahnstangeRack
- 27'27 '
- ZahnstangeRack
- 2828
- AusfräsungMilling
- 28'28 '
- AusfräsungMilling
- 2929
- HakenleisteHook bar
- 29'29 '
- HakenleisteHook bar
- 3030th
- --
- 3131
- GummituchanfangBlanket start
- 31'31 '
- GummituchendeBlanket ends
- 3232
- ArmierungsblechReinforcement plate
- 32'32 '
- ArmierungsblechReinforcement plate
- 3333
- Armpoor
- 3434
- Hakenhook
- 3535
- --
- 3636
- LagerstückStock
- 3737
- AusnehmungRecess
- 3838
- Führungguide
- 3939
- Stiftpen
- 4040
- --
- 4141
- StößelPestle
- 4242
- DruckfederCompression spring
- 4343
- Scheibedisc
Claims (11)
- Device for fixing and tensioning a blanket on a cylinder (2) of a printing machine, the device being arranged in a pit (1) which is parallel to the axis and possessing tensioning shafts (3, 3') for tensioning a rubber blanket having a fixing device (28; 29; 32) for the beginning (31) of the rubber blanket and the end (31') of the rubber blanket, characterised in that a toothed rack (27; 27') is provided which can be actuated by a tensioning screw (21; 21') and is operatively connected via an intermediate toothed wheel (11; 11') to teeth at the periphery of the tensioning shaft (3; 3'), in that an arresting device for the beginning (31) of the rubber blanket is provided which can be actuated via the intermediate toothed wheel (11) by means of a cam disc (16) and a push-rod (41).
- Device according to Claim 1, characterised in that the arresting device consists of an arm (33) which has at its one end a hook (34) arranged at right angles to the longitudinal axis of the arm and at its other end a bearing piece (36) approximately circular in cross-section.
- Device according to Claim 1 and 2, characterised in that the bearing piece (36) has a fork-like guide (38) running at right angles.
- Device according to Claim 1 to 3, characterised in that a pin (39) operatively connected to the fork-like guide (38) is arranged at right angles to the longitudinal axis of the push-rod (41).
- Device according to Claim 1 to 4, characterised in that the push-rod (41) can be actuated via the cam disc (16) against the force of a compression spring (42).
- Device according to Claim 1 to 5, characterised in that the intermediate toothed wheel (11) is fixedly connected to the cam disc (16).
- Device according to Claim 1 to 6, characterised in that the toothed rack (27; 27') has an axial threaded bore, to which the tensioning screw (21; 21') is operatively connected.
- Device according to Claim 1 to 7, characterised in that the tensioning screw (21; 21') can be supported on the one hand against a holding plate (22; 22') and on the other hand against a thrust bearing (24; 24') with washer (26; 26').
- Device according to Claim 1 to 8, characterised in that the cam disc (16) is connected to the intermediate toothed wheel (11) via a shaft (8).
- Device according to Claim 1 to 9, characterised in that the shaft (8; 8'), the toothed rack (27; 27') and also the cam disc (16) are arranged on a bearing block (7; 7') which is fixed by screws (5; 5') in the bottom of a recess (6; 6') in the cylinder pit (1; 1').
- Device according to Claim 1 to 10, characterised in that at least two tensioning devices and also one arresting device for the beginning (31) of the rubber blanket are provided per rubber-blanket cylinder (2).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4127714 | 1991-08-22 | ||
| DE4127714A DE4127714A1 (en) | 1991-08-22 | 1991-08-22 | DEVICE FOR FASTENING AND TENSIONING A PRINT SCARF ON A CYLINDER OF A PRINTING MACHINE |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0529446A1 EP0529446A1 (en) | 1993-03-03 |
| EP0529446B1 true EP0529446B1 (en) | 1995-12-06 |
Family
ID=6438787
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP92113947A Expired - Lifetime EP0529446B1 (en) | 1991-08-22 | 1992-08-17 | Device for fixing and tensioning a blanket on a cylinder of a printing machine |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US5315931A (en) |
| EP (1) | EP0529446B1 (en) |
| JP (1) | JPH05220935A (en) |
| DE (2) | DE4127714A1 (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE9318667U1 (en) * | 1992-12-24 | 1994-02-10 | Koenig & Bauer Ag | Clamping device in a rotary printing machine |
| DE4326248C2 (en) * | 1992-12-24 | 1996-05-15 | Koenig & Bauer Albert Ag | Clamping device in a rotary printing machine |
| DE9317726U1 (en) * | 1992-12-24 | 1994-02-03 | Koenig & Bauer Ag | spindle |
| DE4326251C2 (en) * | 1993-08-05 | 1997-08-28 | Koenig & Bauer Albert Ag | Rubber / blanket cylinder |
| DE4326250C2 (en) * | 1993-08-05 | 1996-05-15 | Koenig & Bauer Albert Ag | Clamping device in a rotary printing machine |
| DE19515632C2 (en) * | 1995-04-28 | 2000-11-30 | Koenig & Bauer Ag | Device for adjusting front marks on a cylinder in a sheet-fed rotary printing press |
| US6026746A (en) * | 1998-09-22 | 2000-02-22 | E. R. Smith Associates, Inc. | Lock-up assembly for plate cylinders of rotary presses |
| DE10224301B4 (en) | 2001-07-30 | 2022-06-15 | Heidelberger Druckmaschinen Ag | Device for holding and tensioning a cylinder winding device |
| JP2009160927A (en) * | 2007-12-13 | 2009-07-23 | Komori Corp | Mounting apparatus of blanket or plate |
| US8397636B2 (en) * | 2010-09-22 | 2013-03-19 | E I Du Pont De Nemours And Company | Method and apparatus for tensioning a printing form |
| DE102019111510A1 (en) * | 2019-05-03 | 2020-11-05 | Koenig & Bauer Ag | Printing unit for an offset printing machine with a rubber cylinder carrying at least one rubber blanket and a method for handling a rubber blanket |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3125023A (en) * | 1964-03-17 | Blanket tensioning means for the impression | ||
| GB266520A (en) * | 1926-02-01 | 1927-03-03 | Fred Wesley Wright | Improvements in and relating to tensioning devices for blankets and printing plates in printing machines |
| GB402103A (en) * | 1932-05-24 | 1933-11-24 | Frederick Grafton Lougee | Improvements in or relating to means for clamping printing plates, fudge boxes and the like |
| US2409830A (en) * | 1943-02-16 | 1946-10-22 | Hoe & Co R | Printing plate clamping mechanism |
| US2859693A (en) * | 1956-07-20 | 1958-11-11 | Cottrell Company | Printing plate tension hook |
| US3020842A (en) * | 1960-05-12 | 1962-02-13 | Hoe & Co R | Offset printing plate clamp |
| US3195457A (en) * | 1963-05-22 | 1965-07-20 | Cottrell Company | Printing plate lockup means |
| DE2707643C3 (en) * | 1977-02-23 | 1980-03-27 | M.A.N. - Roland Druckmaschinen Ag, 6050 Offenbach | Device for tensioning a printing blanket on the cylinder of a printing machine |
| DE2953815C2 (en) * | 1979-03-20 | 1983-11-03 | Koenig & Bauer AG, 8700 Würzburg | Blanket tensioner |
| JPS584671Y2 (en) * | 1980-01-08 | 1983-01-26 | リョービ株式会社 | Mounting device for body covering sheet in offset printing machine |
| DE3219741C1 (en) * | 1982-05-26 | 1987-11-12 | M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach | Blanket tensioner |
-
1991
- 1991-08-22 DE DE4127714A patent/DE4127714A1/en active Granted
-
1992
- 1992-08-17 DE DE59204571T patent/DE59204571D1/en not_active Expired - Fee Related
- 1992-08-17 EP EP92113947A patent/EP0529446B1/en not_active Expired - Lifetime
- 1992-08-18 JP JP4219170A patent/JPH05220935A/en active Pending
- 1992-08-20 US US07/932,509 patent/US5315931A/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| DE4127714C2 (en) | 1993-08-05 |
| DE4127714A1 (en) | 1993-02-25 |
| DE59204571D1 (en) | 1996-01-18 |
| EP0529446A1 (en) | 1993-03-03 |
| JPH05220935A (en) | 1993-08-31 |
| US5315931A (en) | 1994-05-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0598208A1 (en) | Selfclamping drill chuck | |
| DE4129048A1 (en) | DRILL CHUCK | |
| DE3504921C2 (en) | ||
| EP0529446B1 (en) | Device for fixing and tensioning a blanket on a cylinder of a printing machine | |
| DE2726472B2 (en) | Pipe wrench, in particular for twisting casing pipes for boreholes | |
| DE7833365U1 (en) | CLAMPING DEVICE FOR HOLDING AN ADJUSTABLE CONTROL COLUMN FOR A MOTOR VEHICLE | |
| DE2527280B2 (en) | Device for centric rotary driving of a cylindrical workpiece | |
| DE2439329B2 (en) | Roller attachment for roller straightening machines | |
| EP0377860B1 (en) | Sheet transfer drum for printing machines for first impression printing or for perfecting | |
| CH640761A5 (en) | DRILL CHUCK. | |
| DE3141332C2 (en) | Device for assembling two telescoping parts, one of which has at least one radially directed projection | |
| DE2234321B1 (en) | Dental handpiece | |
| DE3121609A1 (en) | GRINDING MACHINE FOR LIFTING BEARINGS | |
| DE3233102C1 (en) | Device for the releasable connection of feed-bar parts of the feed-bars in a transfer press | |
| EP0179148B1 (en) | Clamping device for printing plates for printing machines | |
| EP0069388A1 (en) | Bearing for a printing cylinder or the like with adjustable lateral register | |
| DE2919179C3 (en) | Anti-theft devices for motor vehicles | |
| EP0937546B1 (en) | Clamping and separating device, especially device for pulling off bearings | |
| EP0248101A1 (en) | Mechanism for feeding fasteners mounted on magazine strips to an application tool | |
| DE4236085C2 (en) | Radial roller head | |
| DE2932580A1 (en) | DEVICE FOR FASTENING A SPREADABLE HUB IN A HOLE | |
| EP0666345B1 (en) | Device to couple a drive element to a warp beam axle in a loom | |
| DE2631583B2 (en) | Power operated chuck | |
| EP3225325B1 (en) | Coiling tool for spring coiling machine | |
| DE4341309C1 (en) | Tensioning device for the weight-compensation torsion spring of a door leaf |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): CH DE FR GB IT LI SE |
|
| 17P | Request for examination filed |
Effective date: 19930712 |
|
| 17Q | First examination report despatched |
Effective date: 19950224 |
|
| ITF | It: translation for a ep patent filed |
Owner name: DE DOMINICIS & MAYER S.R.L. |
|
| GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
| RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: KOENIG & BAUER-ALBERT AKTIENGESELLSCHAFT |
|
| AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): CH DE FR GB IT LI SE |
|
| GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) |
Effective date: 19951207 |
|
| REF | Corresponds to: |
Ref document number: 59204571 Country of ref document: DE Date of ref document: 19960118 |
|
| ET | Fr: translation filed | ||
| PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
| 26N | No opposition filed | ||
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 19990726 Year of fee payment: 8 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: SE Payment date: 19990820 Year of fee payment: 8 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 19990826 Year of fee payment: 8 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: CH Payment date: 19990908 Year of fee payment: 8 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 19991027 Year of fee payment: 8 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20000817 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20000818 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20000831 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20000831 |
|
| GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20000817 |
|
| REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
| EUG | Se: european patent has lapsed |
Ref document number: 92113947.3 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20010430 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20010501 |
|
| REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED. Effective date: 20050817 |