EP0575739B2 - Device for supporting a cylinder in a rotary printing machine - Google Patents

Device for supporting a cylinder in a rotary printing machine Download PDF

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Publication number
EP0575739B2
EP0575739B2 EP93107777A EP93107777A EP0575739B2 EP 0575739 B2 EP0575739 B2 EP 0575739B2 EP 93107777 A EP93107777 A EP 93107777A EP 93107777 A EP93107777 A EP 93107777A EP 0575739 B2 EP0575739 B2 EP 0575739B2
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EP
European Patent Office
Prior art keywords
cylinder
supporting
impression cylinder
bolt
rotary arm
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Expired - Lifetime
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EP93107777A
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German (de)
French (fr)
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EP0575739A1 (en
EP0575739B1 (en
Inventor
Glenn Alan Guaraldi
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Heidelberger Druckmaschinen AG
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Heidelberger Druckmaschinen AG
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F13/00—Common details of rotary presses or machines
    • B41F13/08—Cylinders
    • B41F13/20—Supports for bearings or supports for forme, offset, or impression cylinders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2227/00—Mounting or handling printing plates; Forming printing surfaces in situ
    • B41P2227/20—Means enabling or facilitating exchange of tubular printing or impression members, e.g. printing sleeves, blankets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2227/00—Mounting or handling printing plates; Forming printing surfaces in situ
    • B41P2227/20—Means enabling or facilitating exchange of tubular printing or impression members, e.g. printing sleeves, blankets
    • B41P2227/21—Means facilitating exchange of sleeves mounted on cylinders without removing the cylinder from the press

Definitions

  • the invention relates to a device for support of a cylinder in a rotary printing press.
  • the device includes a hydraulic cylinder on the Floor is pivoted. Via a piston rod, a tension screw and a yoke acts hydraulic cylinders with an extension piece the roller to be kept in balance. That with the piston rod via a clamping screw connected yoke is on the extension of the roller to be kept in balance via a ball bearing rotatably mounted.
  • the hydraulic cylinder holds it Roller in a position in which work on the Roller can be carried out without further disassembly can.
  • DE 40 36 388 A1 discloses a bearing for one Printing unit cylinder of a web-fed rotary printing press with a replaceable one, axially from the cylinder drawable coat.
  • This is outside and / or inside the machine side wall supporting the journal of the cylinder on the pegs one supporting the cylinder
  • Adjustable lever which is rotatably mounted in the frame, lying perpendicular to the support surface next to the peg has an eccentric and by means of a four-bar linkage with another on the other side of the tenon eccentric mounted in the frame is connected.
  • a disadvantage of the device disclosed in US 4,119,032 is the lack of protection against pressure drop in the hydraulic system. As a result of gravity the roller would drop if there was a pressure drop in the hydraulic system by their own weight in the side wall, in which it is still stored, may be bent. This has costly Assembly work or a replacement of the Warehouse.
  • a device according to the preamble of claim 1 is both known from document DE-A-40 08 501 and from document DE-A-40 36 388.
  • the object is characterized by the features of claim 1 solved.
  • a printing unit comprises a pair of printing cylinders, a Pair of bearings including bearings for the Impression cylinder and a pair of counterweight mechanisms for the impression cylinder.
  • Any of the counterweight mechanisms includes an actuator and a through the adjusting cylinder rotatable joint piece.
  • the joint piece is by a clamping screw with the rotating arm connected so that the rotary arm when the Actuating cylinder is rotated.
  • the swivel arm is in the side frame the press is stored in one position, which are relative to the associated impression cylinder is adjustable, and by means of the clamping screw additional adjustment of the position of the rotary arm relative be made to the joint piece.
  • the joint pieces are in end positions movable. If the joint pieces are in their End positions, then the movement of the Swivel arms from their support positions under the weight the printing cylinder is blocked. The rotating arms remain in their support positions, even if the pressure in the Cylinders falls off.
  • the pivot arms are in and out its support position movable so that the counterweight mechanisms only if necessary to the assigned Printing cylinders can be operated. Consequently bearing friction and bearing wear on one Minimum reduced.
  • a control device for automatic Operating the counterweight mechanisms can be removed by removing the carrier in the bearings the other ends of the pressure cylinder are activated.
  • a printing unit 10 comprises a frame with a pair spaced apart Sidewalls 12 and 14.
  • the journals 20 of the pressure cylinder 16 are with a storage Support elements 26 in the side walls 12 and 14 rotatably supported.
  • the pivot 22 of the other Printing cylinders 18 are from another storage with support elements 28 in the side walls 12 and 14 rotatably supported.
  • Which is on the right side of the Carrier elements 26 and 28 located in the printing unit 10 can move away from their positions in the side wall 14 as shown in Fig. 1 to access the right ends of the impression cylinders 16 and 18 to create an opening 30 in the side wall 14.
  • the Printing form sleeves 32 and 34 can then of the Printing cylinders 16 and 18 are removed by this through the opening 30 axially from the pressure cylinders 16 and 18 are drawn.
  • the central mounting plate 44 is through Holder 48 and bolt 49 on a flange 46 on the Side wall 12 attached.
  • Each of the upper and lower counterweight mechanisms 40 and 42 has a rotary arm 50.
  • Each pivot arm 50 is through an adjustment of pivot pins 52 connected to the central mounting plate 44.
  • the pivot pin adjustments 52 allow this Rotating the pivot arms 50 around the pivot pin bearing, what an adjustment of the positions of the rotary arms 50 in horizontal direction and thus a horizontal positioning the journals 20 and 22 on the right Side of the printing unit 10 allows.
  • Each swivel arm 50 has an arched holding surface 54 which during rotation of the pivot arm 50 around the pivot pin bearing 52 in contact and out of contact with the associated Bearing pin 20 or 22 is movable.
  • Tensioning screws 56 rotatably connected.
  • the tension screws 56 allow vertical positioning of the Journal 20 and 22 on the right side of the printing unit 10.
  • the clamping screws 56 are triangular Joint pieces 60 rotatably connected.
  • the joint pieces 60 are around third bolts secured in side wall 12 64 rotatable.
  • the upper and lower counterweight mechanisms 40 and 42 also include an actuator cylinder 66 and a piston rod 68.
  • the actuating cylinder 66 is around a bolt 70 fastened in the side wall 12 is rotatable.
  • the end of the piston rod 68 is through a bolt 72 rotatably connected to the joint piece 60.
  • the top and bottom are Counterweight mechanisms 40 and 42 between one Closed position shown in solid lines and one shown partially in dashed lines open position movable.
  • the piston rod 68 When moving from the open position shown in dashed lines to the closed position shown in solid lines moves the piston rod 68 into the actuating cylinder 66 until it is stopped by a stop 74.
  • the Joint piece 60 is around the bolt 64 in Turned counterclockwise.
  • the arched holding surface 54 on the respective rotary arm 50 is thus in the Contact with the trunnions 20, 22 on the pressure cylinders 16 and 18 brought. While in contact with the pivot pins 20 and 22 exercise the respective rotating arms 50 on the respectively assigned journal 20 or 22 a counterweight pressure by which the associated pressure cylinder 16 or 18 when removing the support elements 26 and 28 is supported, as in Fig. 1 shown.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rotary Presses (AREA)

Description

Die Erfindung betrifft eine Vorrichtung zum Stützen eines Zylinders in einer Rotationsdruckmaschine.The invention relates to a device for support of a cylinder in a rotary printing press.

Aus dem U.S. Patent Nr. 4,119,032 ist eine Vorrichtung in einer Druckmaschine bekannt, mit der eine Walze, von der zum Zwecke der Durchführung von Montagearbeiten eine Lagerung weggeschwenkt werden kann, im Gleichgewicht gehalten wird. Die Vorrichtung umfaßt einen hydraulischen Zylinder, der auf dem Boden schwenkbar gelagert ist. Über eine Kolbenstange, eine Spannschraube und ein Joch wirkt der hydraulische Zylinder mit einem Verlängerungsstück der im Gleichgewicht zu haltenden Walze zusammen. Das mit der Kolbenstange über eine Spannschraube verbundene Joch ist auf dem Verlängerungsstück der im Gleichgewicht zu haltenden Walze über ein Kugellager drehbar gelagert. Der hydraulische Zylinder hält die Walze in einer Position, in welcher Arbeiten an der Walze ohne weitere Demontage ausgeführt werden können.From the U.S. Patent No. 4,119,032 is an apparatus known in a printing press with which one Roller from which for the purpose of carrying out Assembly work a storage can be swung away can be kept in balance. The device includes a hydraulic cylinder on the Floor is pivoted. Via a piston rod, a tension screw and a yoke acts hydraulic cylinders with an extension piece the roller to be kept in balance. That with the piston rod via a clamping screw connected yoke is on the extension of the roller to be kept in balance via a ball bearing rotatably mounted. The hydraulic cylinder holds it Roller in a position in which work on the Roller can be carried out without further disassembly can.

DE 40 36 388 A1 offenbart eine Lagerung für einen Druckwerkzylinder einer Rollenrotationsdruckmaschine mit einem auswechselbaren, dazu axial von dem Zylinder ziehbaren Mantel. Eine den Zylinder beim Mantelwechsel einseitig stützende Hilfsvorrichtung soll diesen umfassend arretieren, im Druckbetrieb aber nicht berühren. Hierzu ist außerhalb und/oder innerhalb der den Zapfen des Zylinders lagernden Maschinenseitenwand an den Zapfen je ein den Zylinder stützender Hebel anstellbar, der drehbar im Gestell gelagert ist, senkrecht zur Stützfläche neben dem Zapfen liegend einen Exzenter aufweist und mittels eines Viergelenkes mit einem weiteren auf der anderen Seite des Zapfens im Gestell gelagerten Exzenter in Verbindung steht.DE 40 36 388 A1 discloses a bearing for one Printing unit cylinder of a web-fed rotary printing press with a replaceable one, axially from the cylinder drawable coat. One the cylinder when changing the coat unilaterally supporting auxiliary device should this lock fully, but not in print mode touch. This is outside and / or inside the machine side wall supporting the journal of the cylinder on the pegs one supporting the cylinder Adjustable lever, which is rotatably mounted in the frame, lying perpendicular to the support surface next to the peg has an eccentric and by means of a four-bar linkage with another on the other side of the tenon eccentric mounted in the frame is connected.

Ein Nachteil der in US 4,119,032 offenbarten Vorrichtung ist das Fehlen einer Sicherung gegen Druckabfall in dem Hydrauliksystem. Infolge der Schwerkraft würde die Walze bei Druckabfall im Hydrauliksystem durch ihr Eigengewicht in der Seitenwand, in welcher sie noch gelagert ist, verbogen werden. Dies hat kostspielige Montagearbeiten oder ein Auswechseln des Lagers zur Folge. Eine Vorrichtung gemäß dem Oberbegriff des Anspruchs 1 ist sowohl aus dem Dokument DE-A-40 08 501 als auch aus dem Dokument DE-A-40 36 388 bekannt.A disadvantage of the device disclosed in US 4,119,032 is the lack of protection against pressure drop in the hydraulic system. As a result of gravity the roller would drop if there was a pressure drop in the hydraulic system by their own weight in the side wall, in which it is still stored, may be bent. This has costly Assembly work or a replacement of the Warehouse. A device according to the preamble of claim 1 is both known from document DE-A-40 08 501 and from document DE-A-40 36 388.

Erfindungsgemäß wird die Aufgabe durch die Merkmale des Patentanspruches 1 gelöst.According to the invention, the object is characterized by the features of claim 1 solved.

In einer bevorzugten Ausführungsform der Erfindung umfaßt ein Druckwerk ein Paar Druckzylinder, ein Paar Lagerungen einschließlich der Lager für die Druckzylinder und ein Paar Gegengewichtmechanismen für die Druckzylinder. Jede der Gegengewichtmechanismen umfaßt einen Stellzylinder und ein durch den Stellzylinder rotierbares Gelenkstück. Das Gelenkstück ist durch eine Spannschraube mit dem Dreharm verbunden, so daß der Dreharm bei Aktivierung des Stellzylinders gedreht wird. Der Dreharm ist in dem Seitenrahmen der Druckmaschine in einer Position gelagert, die relativ zu dem zugeordneten Druckzylinder verstellbar ist, und durch die Spannschraube kann eine zusätzliche Verstellung der Position des Dreharms relativ zu dem Gelenkstück vorgenommen werden.In a preferred embodiment of the invention a printing unit comprises a pair of printing cylinders, a Pair of bearings including bearings for the Impression cylinder and a pair of counterweight mechanisms for the impression cylinder. Any of the counterweight mechanisms includes an actuator and a through the adjusting cylinder rotatable joint piece. The joint piece is by a clamping screw with the rotating arm connected so that the rotary arm when the Actuating cylinder is rotated. The swivel arm is in the side frame the press is stored in one position, which are relative to the associated impression cylinder is adjustable, and by means of the clamping screw additional adjustment of the position of the rotary arm relative be made to the joint piece.

Die Gelenkstücke sind in Endpositionen bewegbar. Wenn die Gelenkstücke sich in ihren Endpositionen befinden, dann ist die Bewegung der Dreharme aus ihren Stützpositionen unter dem Gewicht der Druckzylinder blockiert. Die Dreharme bleiben also in ihren Stützpositionen, auch wenn der Druck in den Stellzylindern abfällt.The joint pieces are in end positions movable. If the joint pieces are in their End positions, then the movement of the Swivel arms from their support positions under the weight the printing cylinder is blocked. The rotating arms remain in their support positions, even if the pressure in the Cylinders falls off.

Vorzugsweise sind die Dreharme in ihre und aus ihrer Stützposition bewegbar, so daß die Gegengewichtmechanismen nur im Bedarfsfall an den zugeordneten Druckzylindern betätigt werden können. Somit wird Lagerreibung und Abnutzung der Lager auf ein Minimum reduziert. Eine Steuereinrichtung zum automatischen Betätigen der Gegengewichtmechanismen kann durch Entfernen der Träger in den Lagerungen an den anderen Enden der Druckzylinder aktiviert werden.Preferably, the pivot arms are in and out its support position movable so that the counterweight mechanisms only if necessary to the assigned Printing cylinders can be operated. Consequently bearing friction and bearing wear on one Minimum reduced. A control device for automatic Operating the counterweight mechanisms can be removed by removing the carrier in the bearings the other ends of the pressure cylinder are activated.

Diese und andere Merkmale der Erfindung werden durch die folgende Beschreibung eines bevorzugten Ausführungsbeispiels im Zusammenhang mit den beigefügten, nachstehend erläuterten Zeichnungen weiter verdeutlicht.

Fig. 1
ist eine schematische Darstellung einer erfindungsgemäßen Ausführung eines Druckwerks;
Fig. 2
ist eine Teilansicht entlang der Linie 2-2 der Fig. 1; und
Fig. 3
ist eine Ansicht entlang der Linie 3-3 der Fig. 2.
These and other features of the invention are further illustrated by the following description of a preferred embodiment in conjunction with the accompanying drawings, which are explained below.
Fig. 1
is a schematic representation of an embodiment of a printing unit according to the invention;
Fig. 2
Figure 2 is a partial view taken along line 2-2 of Figure 1; and
Fig. 3
Figure 3 is a view taken along line 3-3 of Figure 2.

Wie in Fig. 1 gezeigt, umfaßt ein Druckwerk 10 einen Rahmen mit einem Paar voneinander beabstandeten Seitenwänden 12 und 14. In den Seitenwänden 12 und 14 lagern ein Paar Druckzylinder 16 und 18 mit jeweiligen Lagerzapfen 20 und 22. Die Lagerzapfen 20 des Druckzylinders 16 werden von einer Lagerung mit Trägerelementen 26 in den Seitenwänden 12 und 14 drehbar gestützt. Die Lagerzapfen 22 des anderen Druckzylinders 18 werden von einer anderen Lagerung mit Tragerelementen 28 in den Seitenwänden 12 und 14 drehbar gestützt. Die sich an der rechten Seite des Druckwerks 10 befindenden Trägerelemente 26 und 28 können von ihren Positionen in der Seitenwand 14 wegbewegt werden, wie in Fig. 1 gezeigt, um Zugang zu den rechten Enden der Druckzylinder 16 und 18 durch eine Öffnung 30 in der Seitenwand 14 zu schaffen. Die Druckformhülsen 32 und 34 können dann von den Druckzylindern 16 und 18 entfernt werden, indem diese durch die Öffnung 30 axial von den Druckzylindern 16 und 18 gezogen werden.As shown in FIG. 1, a printing unit 10 comprises a frame with a pair spaced apart Sidewalls 12 and 14. In the sidewalls 12 and 14 support a pair of pressure cylinders 16 and 18 respective journals 20 and 22. The journals 20 of the pressure cylinder 16 are with a storage Support elements 26 in the side walls 12 and 14 rotatably supported. The pivot 22 of the other Printing cylinders 18 are from another storage with support elements 28 in the side walls 12 and 14 rotatably supported. Which is on the right side of the Carrier elements 26 and 28 located in the printing unit 10 can move away from their positions in the side wall 14 as shown in Fig. 1 to access the right ends of the impression cylinders 16 and 18 to create an opening 30 in the side wall 14. The Printing form sleeves 32 and 34 can then of the Printing cylinders 16 and 18 are removed by this through the opening 30 axially from the pressure cylinders 16 and 18 are drawn.

Wenn die Trägerelemente 26 und 28 aus der Seitenwand 14 entfernt sind, wie in Fig. 1 gezeigt, sind die Druckzylinder 16 und 18 an ihren rechten Enden nicht mehr gestützt. Folglich üben entsprechend der vorliegenden Erfindung der obere und der untere Gegengewichtmechanismus 40 und 42 eine als Gegengewicht bezeichnete Kraft an dem jeweiligen linken Ende der Druckzylinder 16 und 18 aus, wie dies mit dem Pfeil in Fig. 1 angedeutet ist. Folglich stützen der obere und der untere Gegengewichtmechanismus 40 und 42 den ersten und den zweiten Druckzylinder 16 und 18, wenn die Trägerelemente 26 und 28 entfernt sind.When the support members 26 and 28 from the side wall 14, as shown in Fig. 1, are Printing cylinders 16 and 18 are not at their right ends more supported. Hence, practice according to the present Invention of the upper and lower counterweight mechanisms 40 and 42 one as a counterweight designated force at the respective left end of the Printing cylinders 16 and 18 as shown by the arrow in Fig. 1 is indicated. Therefore, the top and bottom support lower counterweight mechanisms 40 and 42 den first and second impression cylinders 16 and 18 if the carrier elements 26 and 28 are removed.

Wie in Fig. 2 und 3 gezeigt, sind der obere und der untere Gegengewichtmechanismus 40 und 42 von gleicher Konstruktion und teilen sich eine zentrale Montageplatte 44. Die zentrale Montageplatte 44 ist durch Halter 48 und Bolzen 49 auf einem Flansch 46 an der Seitenwand 12 befestigt.As shown in Figs. 2 and 3, the upper and the lower counterweight mechanisms 40 and 42 of the same Construction and share a central mounting plate 44. The central mounting plate 44 is through Holder 48 and bolt 49 on a flange 46 on the Side wall 12 attached.

Jeder der oberen und unteren Gegengewichtmechanismen 40 und 42 weist einen Dreharm 50 auf. Jeder Dreharm 50 ist durch eine Verstellung von Drehbolzen 52 mit der zentralen Montageplatte 44 verbunden. Die Drehbolzenverstellungen 52 erlauben das Drehen der Dreharme 50 um die Drehbolzenlagerung, was eine Verstellung der Positionen der Dreharme 50 in horizontaler Richtung und somit eine horizontale Positionierung der Lagerzapfen 20 und 22 an der rechten Seite des Druckwerks 10 ermöglicht. Jeder Dreharm 50 weist eine gewölbte Haltefläche 54 auf, die bei der Drehung des Dreharms 50 um die Drehbolzenlagerung 52 in den Kontakt und aus dem Kontakt mit den zugeordneten Lagerzapfen 20 oder 22 bewegbar ist.Each of the upper and lower counterweight mechanisms 40 and 42 has a rotary arm 50. Each pivot arm 50 is through an adjustment of pivot pins 52 connected to the central mounting plate 44. The pivot pin adjustments 52 allow this Rotating the pivot arms 50 around the pivot pin bearing, what an adjustment of the positions of the rotary arms 50 in horizontal direction and thus a horizontal positioning the journals 20 and 22 on the right Side of the printing unit 10 allows. Each swivel arm 50 has an arched holding surface 54 which during rotation of the pivot arm 50 around the pivot pin bearing 52 in contact and out of contact with the associated Bearing pin 20 or 22 is movable.

Die von den gewölbten Halteflächen 54 entfernten Enden der Dreharme 50 sind durch zweite Bolzen 58 mit Spannschrauben 56 drehbar verbunden. Die Spannschrauben 56 erlauben eine vertikale Positionierung der Lagerzapfen 20 und 22 an der rechten Seite des Druckwerks 10. Die Spannschrauben 56 sind mit dreieckigen Gelenkstücken 60 drehbar verbunden. Die Gelenkstücke 60 sind um in der Seitenwand 12 befestigte dritte Bolzen 64 drehbar.Those removed from the arched support surfaces 54 Ends of the rotary arms 50 are connected by second bolts 58 Tensioning screws 56 rotatably connected. The tension screws 56 allow vertical positioning of the Journal 20 and 22 on the right side of the printing unit 10. The clamping screws 56 are triangular Joint pieces 60 rotatably connected. The joint pieces 60 are around third bolts secured in side wall 12 64 rotatable.

Der obere und der untere Gegengewichtmechanismus 40 und 42 umfassen auch einen Stellzylinder 66 und eine Kolbenstange 68. Der Stellzylinder 66 ist um einen in der Seitenwand 12 befestigten Bolzen 70 drehbar. Das Ende der Kolbenstange 68 ist durch einen Bolzen 72 drehbar mit dem Gelenkstück 60 verbunden.The upper and lower counterweight mechanisms 40 and 42 also include an actuator cylinder 66 and a piston rod 68. The actuating cylinder 66 is around a bolt 70 fastened in the side wall 12 is rotatable. The end of the piston rod 68 is through a bolt 72 rotatably connected to the joint piece 60.

Wie in Fig. 2 gezeigt, sind der obere und der untere Gegengewichtmechanismus 40 und 42 zwischen einer in ausgezogenen Linien gezeigten geschlossenen Position und einer teilweise in gestrichelten Linien gezeigten offenen Position bewegbar. Bei der Bewegung von der in gestrichelten Linien gezeigten offenen Position zu der in ausgezogen Linien gezeigten geschlossenen Position fährt die Kolbenstange 68 in den Stellzylinder 66 ein bis sie von einem Stopper 74 gestoppt wird. Das Gelenkstück 60 wird dabei um den Bolzen 64 im Gegenuhrzeigersinn gedreht. Die gewölbte Haltefläche 54 an dem jeweiligen Dreharm 50 wird somit in den Kontakt mit den Lagerzapfen 20, 22 an den Druckzylindern 16 und 18 gebracht. Während des Kontakts mit den Lagerzapfen 20 und 22 üben die jeweiligen Dreharme 50 auf den jeweils zugeordneten Lagerzapfen 20 oder 22 einen Gegengewichtsdruck aus, durch welchen der zugehörige Druckzylinder 16 oder 18 beim Entfernen der Trägerelemente 26 und 28 gestützt wird, wie in Fig. 1 gezeigt.As shown in Figure 2, the top and bottom are Counterweight mechanisms 40 and 42 between one Closed position shown in solid lines and one shown partially in dashed lines open position movable. When moving from the open position shown in dashed lines to the closed position shown in solid lines moves the piston rod 68 into the actuating cylinder 66 until it is stopped by a stop 74. The Joint piece 60 is around the bolt 64 in Turned counterclockwise. The arched holding surface 54 on the respective rotary arm 50 is thus in the Contact with the trunnions 20, 22 on the pressure cylinders 16 and 18 brought. While in contact with the pivot pins 20 and 22 exercise the respective rotating arms 50 on the respectively assigned journal 20 or 22 a counterweight pressure by which the associated pressure cylinder 16 or 18 when removing the support elements 26 and 28 is supported, as in Fig. 1 shown.

Bei der Drehung des jeweiligen Gelenkstücks 60 im Gegenuhrzeigersinn, wie hieroben beschrieben, wird dieses soweit gedreht, daß die Mitte eines ersten Bolzens 62 über eine gedachte Linie zwischen den Mitten der Bolzen 58 und 64 nach links bewegt wird. Somit werden der Bolzen 62 und das Gelenkstück 60 in eine Endposition bewegt. Dies ist ein erfindungsgemäßes Sicherheitsmerkmal. Wenn die Trägerelemente 26 und 28 entfernt sind, wie in Fig. 1 gezeigt, dann beaufschlagen die Druckzylinder 16 und 18 durch ihr Gewicht über die Lagerzapfen 20 und 22 die Dreharme 50 mit Hebekräften. Diese Hebekräfte zwingen die Dreharme 50 sich im Gegenuhrzeigersinn zu bewegen. Die Spannschrauben 56 werden somit gezwungen, sich nach unten zu bewegen. Würde die Mitte des jeweiligen Bolzens 62 sich rechts von der gedachten Linie zwischen den Mitten der Bolzen 58 und 64 befinden, so würde die jeweilige Spannschraube 56 das jeweilige Gelenkstück 60 zwingen, sich im Uhrzeigersinn zu drehen. Würde der Druck in dem jeweiligen Stellzylinder 66 abfallen, so würde dieser solch einer Drehung des Gelenkstücks 60 im Uhrzeigersinn nicht widerstehen, und der jeweilige Gegengewichtmechanismus 40, 42 würde zurück in die mit gestrichelten Linien gezeigte offene Position bewegt werden. Die Mitte des jeweiligen Bolzens 62 wird jedoch in eine Endposition links von der gedachten Linie zwischen den Mitten der Bolzen 58 und 64 bewegt. Eine Bewegung der jeweiligen Spannschraube 56 nach unten bei Druckabfall in dem jeweiligen Stellzylinder 66 würde folglich das jeweilige Gelenkstück 60 veranlassen, sich im Gegenuhrzeigersinn zu drehen. Diese Gegenuhrzeigersinn-Bewegung des Gelenkstücks 60 wird durch den Stopper 74 an der Kolbenstange 68 blockiert. Das jeweilige Gelenkstück 60 hält somit den jeweiligen Dreharm 50 in seiner geschlossenen Position gegen das Gewicht des jeweiligen Druckzylinders 16, 18, was ein Sicherheitsmerkmal dieser Erfindung darstellt.When the respective joint piece 60 rotates in Counterclockwise as described above this turned so far that the center of a first pin 62nd over an imaginary line between the centers of the bolts 58 and 64 is moved to the left. So be the bolt 62 and the joint piece 60 in an end position emotional. This is a security feature according to the invention. If the support elements 26 and 28 removed, as shown in Fig. 1, then act the pressure cylinders 16 and 18 by their weight over the Bearing journals 20 and 22 the rotating arms 50 with lifting forces. These lifting forces force the rotary arms 50 in To move counterclockwise. The tension screws 56 are thus forced to move down. Would the center of each bolt 62 itself to the right of the imaginary line between the middle of the Bolts 58 and 64 are located, so would the respective Clamp screw 56 force the respective joint piece 60, to turn clockwise. Would the print drop in the respective actuating cylinder 66, so would this such a rotation of the joint piece 60 in Do not resist clockwise, and each one Counterweight mechanism 40, 42 would go back into the open position shown with dashed lines will. However, the center of the respective pin 62 becomes to an end position to the left of the imaginary line between the center of the bolts 58 and 64 moves. A Movement of the respective clamping screw 56 after below when there is a pressure drop in the respective actuating cylinder 66 would consequently cause the respective joint piece 60 to turn counterclockwise. This Counterclockwise movement of the joint piece 60 is by the stopper 74 on the piston rod 68th blocked. The respective joint piece 60 thus holds the respective pivot arm 50 in its closed position against the weight of the respective printing cylinder 16, 18, which is a security feature of this invention.

Die vorangehende Beschreibung der Erfindung kann den Fachmann zu weiteren Verbesserungen, Änderungen und Modifikationen anregen. Es sind z.B. der obere und der untere Gegengewichtmechanismus 40 und 42 in der bevorzugten Ausführungsform der Erfindung mechanisch voneinander getrennt, sie könnten aber mechanisch zu gemeinsamer Betätigung verbunden werden, so wie dies der Fall ist bei einem einzelnen Stellzylinder, der mit beiden Gelenkstücken 60 verbunden ist. Eine Steuereinrichtung zur automatischen Betätigung der Gegengewichtmechanismen 40 und 42 könnte auf das Entfernen und Einfügen der Trägerelemente 26 und 28 ansprechbar gemacht werden. Solche Verbesserungen, Änderungen und Modifikationen entsprechend den Fähigkeiten des Fachmanns fallen in den Rahmen der anhängenden Patentansprüche.The foregoing description of the invention can the expert to further improvements, Encourage changes and modifications. For example the upper and lower counterweight mechanisms 40 and 42 in the preferred embodiment of FIG Invention mechanically separated, they could but mechanically connected to a common operation as is the case with one single actuating cylinder with both joint pieces 60 is connected. A control device for automatic actuation of the counterweight mechanisms 40 and 42 could be on removing and Insert the support elements 26 and 28 responsive be made. Such improvements, changes and modifications according to the capabilities of the Expert fall within the scope of the attached Claims.

BEZUGSZEICHENLISTEREFERENCE SIGN LIST

1010th
DruckwerkPrinting unit
1212th
SeitenwandSide wall
1414
SeitenwandSide wall
1616
DruckzylinderImpression cylinder
1818th
DruckzylinderImpression cylinder
2020th
LagerzapfenBearing journal
2222
LagerzapfenBearing journal
2626
TrägerelementCarrier element
2828
TrägerelementCarrier element
3030th
öffnungopening
3232
DruckformhülsePrinting form sleeve
3434
DruckformhülsePrinting form sleeve
4040
GegengewichtmechanismusCounterweight mechanism
4242
GegengewichtmechanismusCounterweight mechanism
4444
MontageplatteMounting plate
4646
Flanschflange
4848
Halterholder
4949
Bolzenbolt
5050
DreharmeSwivel arms
5252
DrehbolzenPivot pin
5454
HalteflacheHolding area
5656
SpannschraubenTurnbuckles
5858
zweiter Bolzensecond bolt
6060
GelenkstückeJoint pieces
6262
erster Bolzenfirst bolt
6464
dritter Bolzenthird bolt
6666
StellzylinderActuating cylinder
6868
KolbenstangenPiston rods
7070
Bolzenbolt
7272
Bolzenbolt
7474
Stopperstopper

Claims (6)

  1. Apparatus for supporting an impression cylinder in spaced-apart side walls of a rotary printing machine, having a bearing element (26) for supporting the ends (20) of the impression cylinder (16) in the side walls (12, 14), the bearing element (26) being removable from the one end (20) of the impression cylinder (16), and having a counterbalancing mechanism (40) which, in a supporting position, exerts force on the other end of the impression cylinder (16) in order to support the impression cylinder (16) when the bearing element (26) is removed, characterized in that a rotary arm (50) of the counterbalancing mechanism (40) is connected by a second bolt (58) via a tensioning screw (56) to an articulation piece (60), which can be activated by means of a pressure-actuated adjusting cylinder (66) and is moved by the centre of a first bolt (62), which connects the articulation piece (60) to the tensioning screw (56), via an imaginary line between the centres of the second bolt (58) and a third bolt (64), about which the articulation piece (60) rotates, in a first direction, which is limited by a stop (74) on the adjusting cylinder (66), and rotation back of the articulation piece (60) in a second direction, discontinuing the supporting action of the rotary arm (50), is avoided when the bearing element (26) is removed.
  2. Apparatus for supporting an impression cylinder according to Claim 1, characterized in that the articulation piece (60) of the counterbalancing mechanism (40) is rotatably accommodated on one of the side walls (12, 14).
  3. Apparatus according to Claim 1, characterized in that the rotary arm (50) can be moved into and out of contact with the impression cylinder (16).
  4. Apparatus according to Claim 1, characterized in that the rotary arm (50) has a curved holding face (54) which is brought into contact with the end (20) of the impression cylinder (16).
  5. Apparatus according to Claim 1, characterized in that the counterbalancing mechanism (40) comprises an element (52) for adjusting the supporting position of the rotary arm (50) in order to adjust the position of the curved holding face (54) when the rotary arm (50) is in the supporting position.
  6. Apparatus according to Claim 5, characterized in that the adjusting element (52) adjusts the position of the curved holding face (54) both vertically and horizontally.
EP93107777A 1992-06-22 1993-05-13 Device for supporting a cylinder in a rotary printing machine Expired - Lifetime EP0575739B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US901923 1992-06-22
US07/901,923 US5237920A (en) 1992-06-22 1992-06-22 Apparatus for supporting a cylinder in a rotary printing unit

Publications (3)

Publication Number Publication Date
EP0575739A1 EP0575739A1 (en) 1993-12-29
EP0575739B1 EP0575739B1 (en) 1996-08-28
EP0575739B2 true EP0575739B2 (en) 1999-03-31

Family

ID=25415070

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93107777A Expired - Lifetime EP0575739B2 (en) 1992-06-22 1993-05-13 Device for supporting a cylinder in a rotary printing machine

Country Status (5)

Country Link
US (1) US5237920A (en)
EP (1) EP0575739B2 (en)
JP (1) JP3217899B2 (en)
CA (1) CA2099353C (en)
DE (2) DE4315909C2 (en)

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DE4241567A1 (en) * 1992-12-10 1994-06-16 Roland Man Druckmasch Device for adjusting the pressure of a pressure cylinder equipped with a slide-on sleeve
DE4401301A1 (en) * 1994-01-18 1995-07-20 Roland Man Druckmasch Device for adjusting the pressure of a pressure cylinder equipped with a slide-on sleeve
DE4404758C2 (en) * 1994-02-15 1996-06-27 Roland Man Druckmasch Method and device for changing the covering of a cylinder of a web-fed rotary printing press
DE4406573B4 (en) * 1994-03-01 2006-04-27 Heidelberger Druckmaschinen Ag Printing unit of a rotary printing machine
DE4414084C2 (en) * 1994-04-22 1997-09-18 Roland Man Druckmasch Rotary printing machine with several cooperating cylinders
US5458061A (en) * 1994-05-13 1995-10-17 Mitsubishi Jukogyo Kabushiki Kaisha Printing press
US5630364A (en) * 1994-05-13 1997-05-20 Mitsubishi Jukogyo Kabushiki Kaisha Printing press
DE4423803C2 (en) * 1994-05-13 2001-09-27 Mitsubishi Heavy Ind Ltd Device for fastening and releasing a bearing of a printing roller in a printing machine
JPH0843598A (en) * 1995-04-28 1996-02-16 Konica Corp Radiation image converting medium
DE19516004C2 (en) * 1995-05-02 1997-05-07 Windmoeller & Hoelscher Printing press
US5813336A (en) * 1995-12-22 1998-09-29 Heidelberger Druckmaschinen Ag Printing unit with axially removable printing sleeves
US5678485A (en) * 1995-12-22 1997-10-21 Heidelberger Druckmaschinen Ag Counterpoise and lift mechanism
DE19603500A1 (en) * 1996-01-31 1997-08-07 Polywest Kunststofftechnik Sleeve for a rotogravure roller, process for its production and working method of the device for the production
FR2756214B1 (en) * 1996-11-28 1999-02-12 Heidelberg Harris Sa DEVICE FOR MOVING CYLINDERS OF A TWO-SIDED PRINTING UNIT OF A ROTARY PRINTING MACHINE
US5816154A (en) * 1997-05-09 1998-10-06 Bryce International, L.L.C. Print cylinder support for axial removal of a cylindrical sleeve
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DE19740129C2 (en) * 1997-09-12 2003-08-14 Roland Man Druckmasch Rotary printing machine with cylinders that can be exposed on the front
DE19844560C2 (en) * 1998-09-29 2001-05-17 Roland Man Druckmasch Device and method for attaching a flexible printing form
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US6343547B1 (en) * 1999-11-12 2002-02-05 Heidelberger Druckmaschinen Ag Cantilevered cylinder counterpoise device and method
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WO2006104829A2 (en) * 2005-03-30 2006-10-05 Goss International Americas, Inc. Print unit having blanket cylinder throw-off bearer surfaces
CN101631679B (en) 2005-03-30 2011-12-07 高斯国际美洲公司 Cantilevered blanket cylinder lifting mechanism
EP2441584B1 (en) * 2005-03-30 2014-04-30 Goss International Americas, Inc. Web offset printing press with autoplating
JP4829291B2 (en) * 2005-04-11 2011-12-07 ゴス インターナショナル アメリカス インコーポレイテッド Printing unit that enables automatic plating using a single motor drive
WO2013027473A1 (en) 2011-08-24 2013-02-28 森永乳業株式会社 Electrolyzed water production device
CN109591455A (en) * 2018-12-31 2019-04-09 高斯图文印刷系统（中国）有限公司 It is a kind of for replacing the pressing device of plate cylinder sleeve
TWI749882B (en) * 2020-11-19 2021-12-11 臻賞工業股份有限公司 Tool clamp with safe engagement function

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Also Published As

Publication number Publication date
US5237920A (en) 1993-08-24
JPH0631892A (en) 1994-02-08
DE4315909A1 (en) 1993-12-23
EP0575739A1 (en) 1993-12-29
EP0575739B1 (en) 1996-08-28
CA2099353C (en) 1998-05-05
DE59303546D1 (en) 1996-10-02
DE4315909C2 (en) 2001-05-23
JP3217899B2 (en) 2001-10-15
CA2099353A1 (en) 1993-12-27

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