EP0527424B1 - Cylinder for conveying sheets - Google Patents
Cylinder for conveying sheets Download PDFInfo
- Publication number
- EP0527424B1 EP0527424B1 EP92113307A EP92113307A EP0527424B1 EP 0527424 B1 EP0527424 B1 EP 0527424B1 EP 92113307 A EP92113307 A EP 92113307A EP 92113307 A EP92113307 A EP 92113307A EP 0527424 B1 EP0527424 B1 EP 0527424B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- drum
- sheet
- grippers
- shaft
- suction
- 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
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F21/00—Devices for conveying sheets through printing apparatus or machines
- B41F21/10—Combinations of transfer drums and grippers
- B41F21/106—Combinations of transfer drums and grippers for reversing sheets, e.g. for perfecting machine
- B41F21/108—Combinations of transfer drums and grippers for reversing sheets, e.g. for perfecting machine with pneumatic means
Definitions
- the invention relates to a drum for transporting sheets according to the preamble of patent claim 1.
- a sheet transfer drum for sheet-fed rotary printing presses with a gripper device which grips the front edge of the sheet and suction elements which grasp the rear edge of the sheet for tensioning and smoothing the sheet is known.
- movements generated in the running direction and transversely to the running direction of the sheet are superimposed by means of adjustable cam mechanisms and transmitted to the suction elements in such a way that a diagonal sheet tensioning movement takes place through the suction elements at the end of the sheet.
- the diagonals of the direction of movement of the suction cups can be adjusted individually by means of adjusting screws. This makes it possible to set different angles to the center line of the paper sheet for each diagonal.
- the invention has for its object to provide a drum for transporting sheets, the trailing edge in the areas between the center line of the sheet in the transport direction and the two side edges of the sheet in different pulling directions is tightened and bubble-shaped distortions of the sheet are eliminated.
- the advantages of the present invention are, in particular, that the sheets of paper are wrinkle-free and flat on the outer surface of the drum despite acceleration and centrifugal forces, air vortices, forces due to static charging and paper distortion aligned and held.
- the sheets are drawn and held tightly from a point, which is approximately in the middle of the leading edge of the sheet.
- force components also act in the axial direction at the end of the sheet so that the sheets also lie wrinkle-free on the drum body in this area.
- the sheet transfer or storage drum 1 shown in FIG. 1 consists of a drum base body 2, which is mounted in the machine frame 5 in the usual way via hollow shaft journals 3, 4 connected to it.
- the drum body is provided in a known and therefore not described manner with a series of grippers 6 which serve to grip the leading edges of the sheets fed by a transfer drum 7.
- a shaft 8 is freely rotatably supported in the hollow shaft journal 3, 4 of the drum base body 2. On this shaft 8 sections or in the form of segments holding parts 9 are attached, which are provided along a surface line of the sheet transfer drum 1 with suction nozzles 10 for detecting the trailing edge of the sheet. Suction air is supplied to these suction nozzles 10 in a known manner via a shaft designed as a hollow shaft 8 by means of a rotary suction duct.
- Gears 13, 14 are arranged parallel to one another with the same diameter, the same number of teeth and the same pitch on the hollow shaft journal 4 and the end of the shaft 8 which projects above it.
- Gear 13 is firmly connected to the drum base body 2.
- the gear 14 is rotatably supported on the shaft 8 and is on the one hand connected to the gear 13 by a releasable coupling 22 and on the other hand via joints 46; 47 and an intermediate coupling 48, a crankshaft-shaped lever 49, a bearing 50 of the roller 51 and a frame-fixed groove 52 connected to a lever 53 on the hollow shaft 8.
- the releasable coupling 22 can be, for example, of the type described in DE-OS 35 34 486.
- control device 54 consisting of the parts 46 to 53, the uniform rotary movement of the shaft 8 and the holding part 9 arranged thereon with the gripper device 42 and the suction nozzles 10 are superimposed on an oscillating additional movement in the direction of arrow C.
- the angle lever 49 is slit-shaped at the pivot point 47. In a slot 55, the joint 47 is slidably and fixably arranged.
- the transfer drum 7 supplying the sheet and a turning drum 15 are placed on the sheet transfer drum 1 in the manner shown.
- the transfer drum 7 is provided with grippers 16 and feeds the sheets from the first printing unit 17 to the sheet transfer drum 1.
- the turning drum 15 has a gripper system 18 provided and feeds the sheets to a second printing unit 19. Depending on whether the printing is in straight printing or face and back printing, the grippers 20, 21 of the gripper system 18 grip the sheet on the sheet transfer drum 1 at its front or rear edge.
- the gear wheel of the transfer drum 7 meshes with the gear 13 fastened on the hollow shaft journal 4 of the drum base body 2, while the gear wheel of the turning drum 15 is in engagement with the gear wheel 14 which is fastened on the shaft 8.
- Stops are provided between the gear wheels 13, 14 or the two parts (drum base body 2 and holding parts 9) of the sheet transfer drum 1 which can be rotated relative to one another, which abut one another when the sheet transfer drum 1 is set to face printing operation. These stops, not shown in the drawing, thus secure the fine printing position, in which the grippers 20 of the gripper system 18 of the turning drum 15 correspond to the grippers 6 of the sheet transfer drum 1. If the printing press is to be reset from straight and reverse printing to straight printing, only the stops need to be moved against each other.
- the arc distance corresponds the sheet transfer drum of the sheet section the turning drum 15, the length of the Arches from the displacement distance of the trailing edge of the sheet when turning minus the paper margin required to grasp the sheet.
- FIGS. 1 and 2 a drum 1 according to FIGS. 1 and 2 is shown in a more precise representation.
- the grippers 6, which grip the leading edge of the sheet, are arranged on the basic drum body 2.
- the grippers 6 are in operative contact with control cams 27 fixed to the frame via bearings 23 of the gripper shaft and a lever 24 and a roller 26. After the arc 28 has been transferred, the grippers 6 close.
- the arc 28 is clamped between the gripper 6 and the gripper stop 29.
- the gripper 29 has fork-like extensions 31 which mesh with the fork-like extensions 32 of the holding part 9.
- the suction nozzles 10 can be moved in slots 33 in the direction of arrow C.
- the slots 33 are aligned with their longitudinal axes in the radial direction to point 34.
- the point 34 represents the center of the leading edge of the sheet. This means that the sheet 28 held with the grippers 6 but not shown in FIG. 4 is sucked in and streamlined towards the outer edges from the point 34.
- This is done by the movable arrangement of the suction nozzles 10 in the slots 33. From Fig. 3 it can be seen that the suction nozzles 10 are movable by the amount a. This is accomplished by a drive 36 which is operated by a frame-fixed control curve 37 is applied.
- the drive 36 consists of a tab on the suction nozzle 10, which is connected via a ball joint to a coupling, which in turn acts on the control cam 37 via a toggle lever and a roller.
- the suction nozzles 10 are arranged in recesses 38 of the holding part 9.
- the suction nozzles 10 are spherical at their base and have a corresponding seat on the hollow shaft 8 through which suction air is guided (symbolically shown in FIGS. 1 and 2).
- the suction nozzle 10 has a collar 39 on which a conical compression spring 41, which extends in the direction of the head part of the suction nozzle 10, is supported.
- the compression spring 41 has its second abutment on an edge which is formed as a result of the tapering of a recess 38.
- grippers 42 can alternatively be arranged behind the nozzle 10 on the holding part 9, which are operatively connected to a frame-mounted control cam 44 by a known drive 43.
- the alternatively arranged grippers 42 grip the sheet 28 after it has been spread by the movable suction nozzles 10. By a defined tensioning movement of the holding part 9 by 0.2 to 1.0 mm, the sheets 28 are stretched by this amount, so that folds, plate sheets or Full-wave edged arches rest on the outer surface.
- the drive 43 for the gripper 42 consists of a mounted gripper shaft and a roller lever which is in engagement with the frame-fixed control cam 44 via a roller.
- the grippers 42 rest on the rear edge of the holding part 9, on which the arch 28 ends (FIG. 3).
- the expansion movement of the holding part 9 designed with the grippers 42 with respect to the drum base body 2 with the grippers 6 is brought about by a stroke of the control device designated overall by 54.
- the grippers 42 with the associated gripper supports move by means of the holding part 9 on a circular arc, the radius of which corresponds to the radius of the drum 1.
- the extended lines of the direction of movement of the suction elements 10 intersect in a radial manner at a point 34 which lies on the circumferential line, preferably the central circumferential line of the drum 1.
- This point 34 can both in the area of the gripper pad Grippers 6 are also about ten to fifteen millimeters outside the support of the grippers 6; depending on what angles the extended lines of the direction of movement of the suction elements 10 take. This point 34 can even lie beyond the amount of ten to fifteen millimeters outside the support of the grippers 6.
Landscapes
- Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
- Handling Of Cut Paper (AREA)
Description
Die Erfindung betrifft eine Trommel zum Transportieren von Bogen gemäß dem Oberbegriff des Patentanspruches 1.The invention relates to a drum for transporting sheets according to the preamble of patent claim 1.
Durch die gattungsgemäße DE 30 36 790 C2 ist eine Bogenübergabetrommel für Bogenrotationsdruckmaschinen mit einer die Bogenvorderkante erfassenden Greifereinrichtung und die Bogenhinterkante erfassende Saugelemente zum Spannen und Glätten des Bogens bekannt. Dabei werden mittels einstellbarer Kurvengetriebe erzeugte Bewegungen in Laufrichtung und quer zur Laufrichtung des Bogens so überlagert und auf die Saugelemente übertragen, daß durch die Saugelemente am Bogenende eine diagonale Bogenspannbewegung erfolgt.
Entsprechend der Fig. 8 dieser Druckschrift sind die Diagonalen der Bewegungsrichtung der Sauger individuell durch Stellschrauben einstellbar. Hierdurch ist es möglich für jede Diagonale unterschiedliche Winkel zur Mittellinie des Papierbogens einzustellen.From the generic DE 30 36 790 C2, a sheet transfer drum for sheet-fed rotary printing presses with a gripper device which grips the front edge of the sheet and suction elements which grasp the rear edge of the sheet for tensioning and smoothing the sheet is known. In this case, movements generated in the running direction and transversely to the running direction of the sheet are superimposed by means of adjustable cam mechanisms and transmitted to the suction elements in such a way that a diagonal sheet tensioning movement takes place through the suction elements at the end of the sheet.
According to Fig. 8 of this document, the diagonals of the direction of movement of the suction cups can be adjusted individually by means of adjusting screws. This makes it possible to set different angles to the center line of the paper sheet for each diagonal.
Der Erfindung liegt die Aufgabe zugrunde, eine Trommel zum Transportieren von Bogen zu schaffen, dessen Hinterkante in den Bereichen zwischen der Mittellinie des Bogens in Transportrichtung und den beiden Seitenkanten des Bogens in unterschiedlichen Zugrichtungen straffgezogen wird und auch blasenförmige Verwerfungen des Bogens beseitigt werden.The invention has for its object to provide a drum for transporting sheets, the trailing edge in the areas between the center line of the sheet in the transport direction and the two side edges of the sheet in different pulling directions is tightened and bubble-shaped distortions of the sheet are eliminated.
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.
Die Vorteile der vorliegenden Erfindung bestehen insbesondere darin, daß die Papierbogen trotz Beschleunigungs- und Zentrifugalkräften, Luftwirbeln, Kräften durch statische Aufladung und Papierverzug faltenfrei und plan auf der Mantelfläche der Trommel ausgerichtet und festgehalten werden. Dabei werden die Bogen strahlenförmig von einem Punkt aus, der etwa in der Mitte der Bogenvorderkante liegt, straffgezogen und festgehalten. Insbesondere am Bogenende wirken Kraftkomponenten auch in axialer Richtung, damit die Bogen auch in diesem Bereich faltenfrei auf dem Trommelkörper aufliegen.The advantages of the present invention are, in particular, that the sheets of paper are wrinkle-free and flat on the outer surface of the drum despite acceleration and centrifugal forces, air vortices, forces due to static charging and paper distortion aligned and held. The sheets are drawn and held tightly from a point, which is approximately in the middle of the leading edge of the sheet. In particular, force components also act in the axial direction at the end of the sheet so that the sheets also lie wrinkle-free on the drum body in this area.
Mit dieser Trommel ist es auch möglich, solche Bogen faltenfrei zu transportieren, die auf Grund des Druckverfahrens Verwerfungen aufweisen. Blasenförmige Verwerfungen können bei Wertpapierbogen dadurch entstehen, daß während des Druckes partiell erhebliche Drücke auftreten, die zu Deformation des Materials führen. Diese Verwerfungen können mit dieser Trommel ausgeglichen werden.With this drum it is also possible to transport such sheets without creases that have warps due to the printing process. Bubble-shaped warping can occur in securities sheets in that considerable pressures occur during printing, which lead to deformation of the material. This distortion can be compensated with this drum.
Die Erfindung soll nachstehend an zwei Ausführungsbeispielen näher erläutert werden. Die zugehörigen Zeichnungen zeigen
- Fig. 1
- einen schematischen Längsschnitt durch eine Trommel;
- Fig. 2
- eine Seitenansicht einer Trommel nach Fig. 1 mit weiteren an diese angestellten Umführ- und Wendetrommeln;
- Fig. 3
- eine Seitenansicht einer Trommel nach Fig. 1 im Schnitt mit Darstellung der Greif- und Saugvorrichtungen und deren Antriebsvorrichtungen;
- Fig. 4
- eine schematische Aufsicht auf eine Trommel nach Fig. 1 mit Darstellung kammartiger Bogentragsegmente und den Bogengreifereinrichtungen.
- Fig. 1
- a schematic longitudinal section through a drum;
- Fig. 2
- a side view of a drum of Figure 1 with further to this employed transfer and turning drums.
- Fig. 3
- a side view of a drum of Figure 1 in section showing the gripping and suction devices and their drive devices.
- Fig. 4
- is a schematic plan view of a drum of FIG. 1 showing comb-like sheet support segments and the sheet gripping devices.
Die in Fig 1 dargestellte Bogenübergabe- oder Speichertrommel 1 besteht aus einem Trommelgrundkörper 2, der über mit diesem verbundene Hohlwellenzapfen 3, 4 in üblicher Weise im Maschinengestell 5 gelagert ist. Der Trommelgrundkörper ist in bekanter und daher nicht näher beschriebener Weise mit einer Reihe von Greifern 6 versehen, die dem Ergreifen der Vorderkanten der von einer Übergabetrommel 7 zugeführten Bogen dienen.The sheet transfer or storage drum 1 shown in FIG. 1 consists of a
In den Hohlwellenzapfen 3, 4 des Trommelgrundkörpers 2 ist eine Welle 8 frei drehbar gelagert. Auf diese Welle 8 sind abschnittsweise oder in Form von Segmenten Halteteile 9 befestigt, die längs einer Mantellinie der Bogenübergabetrommel 1 mit Saugdüsen 10 zum Erfassen der Bogenhinterkanten versehen sind. Diesen Saugdüsen 10 wird über die als Hohlwelle 8 ausgebildete Welle in bekannter Weise durch eine Saugluftdrehdurchführung Saugluft zugeführt.A
Auf den Hohlwellenzapfen 4 und das diesen überragende Ende der in ihr gelagerten Welle 8 sind Zahnräder 13, 14 parallel zueinander mit gleichem Durchmesser, gleicher Zähnezahl und gleicher Teilung angeordnet. Zahnrad 13 ist fest mit dem Trommelgrundkörper 2 verbunden. Das Zahnrad 14 ist drehbar auf der Welle 8 gelagert und ist einerseits mit dem Zahnrad 13 durch eine lösbare Kupplung 22 verbunden und andererseits über Gelenke 46; 47 und eine dazwischenliegende Koppel 48, einen kurbelwellenförmigen Hebel 49, ein Lager 50 der Rolle 51 und einer gestellfesten Nut 52 mit einem Hebel 53 auf der Hohlwelle 8 verbunden. Die lösbare Kupplung 22 kann beispielsweise von der in der DE-OS 35 34 486 beschriebenen Art sein.
Mit Hilfe einer Steuereinrichtung 54, bestehend aus den Teilen 46 bis 53, wird der gleichmäßigen Drehbewegung der Welle 8 und des darauf angeordneten Halteteiles 9 mit der Greifereinrichtung 42, und den Saugdüsen 10 eine oszillierende Zusatzbewegung in Pfeilrichtung C überlagert.With the help of a
Der Winkelhebel 49 ist im Gelenkpunkt 47 schlitzförmig ausgebildet. In einem Schlitz 55 ist das Gelenk 47 verschiebbar und feststellbar angeordnet.The
Wie aus Fig. 2 ersichtlich ist, sind an die Bogenübergabetrommel 1 die den Bogen zuführende Übergabetrommel 7 und eine Wendetrommel 15 in der dargestellten Weise angestellt. Die Übergabetrommel 7 ist mit Greifern 16 versehen und führt der Bogenübergabetrommel 1 die Bogen von dem ersten Druckwerk 17 zu.As can be seen from FIG. 2, the transfer drum 7 supplying the sheet and a turning
Die Wendetrommel 15 ist mit einem Greifersystem 18 versehen und führt die Bogen einem zweiten Druckwerk 19 zu. Je nachdem, ob im Schöndruck oder Schön- und Widerdruckbetrieb gearbeitet wird, erfassen die Greifer 20, 21 des Greifersystems 18 den Bogen auf der Bogenübergabetrommel 1 an seiner Vorder- oder Hinterkante.The turning
Das Zahnrad der Übergabetrommel 7 kämmt mit dem auf dem Hohlwellenzapfen 4 des Trommelgrundkörpers 2 befestigten Zahnrad 13, während sich das Zahnrad der Wendetrommel 15 im Eingriff mit dem Zahnrad 14 befindet, das auf der Welle 8 befestigt ist.The gear wheel of the transfer drum 7 meshes with the
Zwischen den Zahnrädern 13, 14 oder den beiden relativ zueinander verdrehbaren Teilen (Trommelgrundkörper 2 und Halteteile 9) der Bogenübergabetrommel 1 sind Anschläge vorgesehen, die aneinander liegen, wenn die Bogenübergabetrommel 1 auf Schöndruckbetrieb eingestellt ist. Diese in der Zeichnung nicht dargestellten Anschläge sichern somit die Schöndruckstellung, bei der die Greifer 20 des Greifersystems 18 der Wendetrommel 15 mit den Greifern 6 der Bogenübergabetrommel 1 korrespondieren. Soll die Druckmaschine von Schön- und Widerdruckbetrieb auf Schöndruck zurückgestellt werden, brauchen nur die Anschläge gegeneinander gefahren zu werden.Stops are provided between the
In der der Grundstellung entsprechenden Schöndruckstellung entspricht die Bogenstrecke 
Gemäß Fig. 3 ist eine Trommel 1 nach Fig. 1 und 2 in präzisierter Darstellung gezeigt. Auf dem Trommelgrundkörper 2 sind die Greifer 6 angeordnet, welche die Bogenvorderkante erfassen. Die Greifer 6 sind über Lager 23 der Greiferwelle und einen Hebel 24 sowie einer Rolle 26 in Wirkkontakt mit gestellfesten Steuerkurven 27. Nach Übergabe des Bogens 28 schließen die Greifer 6. Der Bogen 28 ist zwischen Greifer 6 und dem Greiferaufschlag 29 festgeklemmt. Der Greiferaufschlag 29 besitzt gabelartige Verlängerungen 31, welche mit den gabelartigen Verlängerungen 32 des Halteteiles 9 kammartig ineinandergreifen.3, a drum 1 according to FIGS. 1 and 2 is shown in a more precise representation. The
Im Halteteil 9 sind die Saugdüsen 10 in Schlitzen 33 in Pfeilrichtung C bewegbar. Die Schlitze 33 sind mit ihren Längsachsen in radialer Richtung zum Punkt 34 ausgerichtet. Der Punkt 34 stellt die Mitte der Bogenvorderkante dar. Dies bedeutet, daß der mit den Greifern 6 festgehaltene, jedoch in Fig. 4 nicht dargestellte Bogen 28 angesaugt und nach den Außenkanten hin strahlenförmig vom Punkt 34 aus gestrafft wird. Dies geschieht durch die bewegliche Anordnung der Saugdüsen 10 in den Schlitzen 33. Aus Fig. 3 ist ersichtlich, daß die Saugdüsen 10 um den Betrag a bewegbar sind. Dies wird durch einen Antrieb 36 bewerkstelligt, welcher von einer gestellfesten Steuerkurve 37 beaufschlagt wird. Der Antrieb 36 besteht aus einer Lasche an der Saugdüse 10, welche über ein Kugelgelenk mit einer Koppel verbunden ist, welche wiederum über Kniehebel und eine Rolle auf die genannte Steuerkurve 37 wirkt. Die Saugdüsen 10 sind in Ausnehmungen 38 des Halteteils 9 angeordnet.In the
Die Saugdüsen 10 sind an ihrem Fußteil ballig ausgebildet und haben einen entsprechenden Sitz auf der Hohlwelle 8, durch die Saugluft geführt wird (in Fig. 1 und 2 symbolisch dargestellt). In der Nähe des Fußteils weist die Saugdüse 10 einen Bund 39 auf, auf welchem sich eine in Richtung Kopfteil der Saugdüse 10 erstreckende kegelförmig verlaufende Druckfeder 41 abstützt. Die Druckfeder 41 hat ihr zweites Widerlager an einem Rand, welcher infolge der Verjüngung einer Ausnehmung 38 gebildet ist. Hinter der Düse 10 können am Halteteil 9 alternativ, wie in Fig. 3 und 4 gezeigt, nochmals Greifer 42 angeordnet sein, die durch einen bekannten Antrieb 43 mit einer gestellfesten Steuerkurve 44 in Wirkverbindung sind. Die alternativ angeordneten Greifer 42 fassen den Bogen 28 nach dessen Spreizung durch die beweglichen Saugdüsen 10. Durch eine definierte Spannbewegung des Halteteils 9 um 0,2 bis 1,0 mm werden die Bogen 28 um diesen Betrag gedehnt, so daß Falten, getellerte Bogen oder randwellige Bogen vollflächig auf der Mantelfläche aufliegen.The suction nozzles 10 are spherical at their base and have a corresponding seat on the
Der Antrieb 43 für die Greifer 42 besteht aus einer gelagerten Greiferwelle sowie aus einem Rollenhebel, der über eine Rolle mit der gestellfesten Steuerkurve 44 in Eingriff steht. Die Greifer 42 setzen auf der Hinterkante des Halteteils 9 auf, auf welchem der Bogen 28 endet (Fig. 3). Die Dehnbewegung des mit den Greifern 42 ausgestalteten Halteteiles 9 gegenüber dem Trommelgrundkörper 2 mit den Greifern 6 wird durch einen Hub der insgesamt mit 54 bezeichneten Steuereinrichtung bewirkt. Dabei bewegen sich die Greifer 42 mit den dazugehörigen Greiferauflagen mittels des Halteteils 9 auf einem Kreisbogen, dessen Radius dem Radius der Trommel 1 entspricht. Durch das Laufen der Rolle 51 in der gestellfesten Nut 52 wird über den Hebel 49 eine Kraft übertragen, die über die gelenkig gelagerte Koppel 48 auf das mit der Welle 8 verbundene Halteteil 9 in der Weise wirkt, daß das Halteteil 9 gegenüber dem Trommelgrundkörper 2 eine Schwenkbewegung ausführt, die je nach Größe des angestellten Hubes zu einer Dehnung des Bogens im Bereich von 0,2 bis 1 mm führt, so daß blasenförmige Verwerfungen beseitigt werden. Falls der Betrag der Dehnung einstellbar ausgeführt wird, dann wird statt einer Nut 52 eine verstellbare Steuerkurve eingesetzt, gegen welche der Hebel 49 mit der Rolle 51 federnd angedrückt wird.The
Zusammengefaßt kann man feststellen, daß sich die verlängerten Linien der Bewegungsrichtung der Saugelemente 10 strahlenförmig in einem Punkt 34 schneiden, der auf der Umfangslinie, vorzugsweise der mittleren Umfangslinie der Trommel 1 liegt. Dieser Punkt 34 kann dabei sowohl im Bereich der Greiferauflage der Greifer 6 liegen als auch etwa zehn bis fünfzehn Millimeter außerhalb der Auflage der Greifer 6; je nachdem, welche Winkel die verlängerten Linien der Bewegungsrichtung der Saugelemente 10 einnehmen. Dieser Punkt 34 kann sogar noch über den Betrag von zehn bis fünfzehn Millimetern hinaus außerhalb der Auflage der Greifer 6 liegen.In summary, it can be stated that the extended lines of the direction of movement of the
- 11
- Trommeldrum
- 22nd
- TrommelgrundkörperBasic drum body
- 33rd
- HohlwellenzapfenHollow shaft journal
- 44th
- HohlwellenzapfenHollow shaft journal
- 55
- MaschinengestellMachine frame
- 66
- GreiferGripper
- 77
- ÜbergabetrommelTransfer drum
- 88th
- Welle, HohlwelleShaft, hollow shaft
- 99
- HalteteilHolding part
- 1010th
- SaugdüseSuction nozzle
- 1111
- --
- 1212th
- --
- 1313
- Zahnradgear
- 1414
- Zahnradgear
- 1515
- WendetrommelTurning drum
- 1616
- GreiferGripper
- 1717th
- DruckwerkPrinting unit
- 1818th
- GreifersystemGripper system
- 1919th
- Druckwerk, zweitesPrinting unit, second
- 2020th
- GreiferGripper
- 2121
- GreiferGripper
- 2222
- Kupplungclutch
- 2323
- Lagercamp
- 2424th
- Hebellever
- 2525th
- --
- 2626
- Rollerole
- 2727
- SteuerkurveControl curve
- 2828
- Bogenbow
- 2929
- GreiferaufschlagGripper impact
- 3030th
- --
- 3131
- Verlängerungrenewal
- 3232
- Verlängerungrenewal
- 3333
- Schlitzslot
- 3434
- PunktPoint
- 3535
- --
- 3636
- Antriebdrive
- 3737
- SteuerkurveControl curve
- 3838
- AusnehmungRecess
- 3939
- BundFederation
- 4040
- --
- 4141
- DruckfederCompression spring
- 4242
- GreiferGripper
- 4343
- Antriebdrive
- 4444
- SteuerkurveControl curve
- 4545
- --
- 4646
- Gelenkjoint
- 4747
- Gelenkjoint
- 4848
- KoppelPaddock
- 4949
- Hebellever
- 5050
- Lagercamp
- 5151
- Rollerole
- 5252
- Kurve / NutCurve / groove
- 5353
- Hebellever
- 5454
- SteuereinrichtungControl device
- 5555
- Schlitzslot
- aa
- Betragamount
- CC.
- PfeilrichtungArrow direction
Claims (5)
- Drum for conveying sheets, in which, as an untautened or creased sheet (2) is pulled smooth, seen from the centre line of the paper sheet to the lateral edges of the sheet (2), the tensioning displacement increases, so that the sheet trailing edge, in the end, is pulled taut in the regions between the centre line of the sheet (2) and the two lateral edges in different pulling directions resulting from the respective longitudinal and transverse tensioning displacement of the suction elements (13) [sic], the drum being provided with controlled grippers for taking hold of the sheet leading edge of the sheet to be pulled smooth and the suction elements being arranged such that they can be displaced obliquely by means of a drive, with the extended lines of the direction of movement of the suction elements (10) intersecting at a central circumferential line of the drum (1), characterised in that the shaft (8) is constructed as a hollow shaft and is in connection with a suction-air source, in that a foot part of the suction element (10) is constructed crowned and is mounted in a corresponding seat on the shaft (8), in that the suction elements (10) are held in their seat on the shaft (8) by means of compression springs (41).
- Drum according to Claim 1, characterised in that, following the suction elements (10) in the direction of rotation of the drum (1), controllable grippers (42) for taking hold of the sheet trailing edge and also associated gripper rests are arranged on a holding part (9) fixed to the hollow shaft, in that the gripper rests together with the grippers (42) can be pivoted by means of the holding part (9) on an arc of a circle whose radius corresponds to the radius of the drum (1).
- Drum according to Claims 1 to 2, characterised in that a control device (54) is provided to pivot the grippers (42) for taking hold of the trailing edge, together with their rest.
- Drum according to Claims 1 to 3, characterised in that the control device (54) comprises a lever (53) which is connected to the shaft (8) and runs, via a link (48) and a lever (49) with a roller (51), in a groove (52) fixed to the frame.
- Drum according to Claims 1 to 4, characterised in that the suction elements (10) are guided in slots (33) in the curved surface of the drum (1).
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4126644 | 1991-08-12 | ||
| DE4126644 | 1991-08-12 | ||
| DE4223555A DE4223555A1 (en) | 1991-08-12 | 1992-07-17 | DRUM FOR TRANSPORTING BOWS |
| DE4223555 | 1992-07-17 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0527424A1 EP0527424A1 (en) | 1993-02-17 |
| EP0527424B1 true EP0527424B1 (en) | 1996-04-24 |
Family
ID=25906293
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP92113307A Expired - Lifetime EP0527424B1 (en) | 1991-08-12 | 1992-08-05 | Cylinder for conveying sheets |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US5186107A (en) |
| EP (1) | EP0527424B1 (en) |
| JP (1) | JPH0767798B2 (en) |
| CN (1) | CN1030756C (en) |
| DE (3) | DE4223555A1 (en) |
| RU (1) | RU2101185C1 (en) |
Families Citing this family (28)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4123399A1 (en) * | 1991-07-15 | 1993-01-21 | Windmoeller & Hoelscher | DEVICE FOR COLLECTING OR STACKING FLAT WORKPIECES ON A STACKING TABLE |
| DE4126643A1 (en) * | 1991-08-12 | 1993-02-18 | Koenig & Bauer Ag | DRUM FOR TRANSPORTING AND DELIVERING BOWS |
| DE4210327A1 (en) * | 1992-03-30 | 1993-10-07 | Koenig & Bauer Ag | Sheet turning device in a rotary printing machine |
| DE4336047A1 (en) * | 1993-10-22 | 1995-04-27 | Heidelberger Druckmasch Ag | Rotary sheet-fed printing machine for perfecting with a double-diameter cylinder that acts as a storage drum |
| DE4434778C1 (en) * | 1994-09-29 | 1995-11-30 | Roland Man Druckmasch | Sheet guide between guide cylinder and drum in rotary printing press |
| DE19514259A1 (en) † | 1995-04-15 | 1996-10-17 | Roland Man Druckmasch | Method for impressing bar codes in printed sheets and device for carrying out the method |
| DE19624196C2 (en) * | 1996-06-18 | 1999-09-23 | Koenig & Bauer Ag | Device and method for sheet guidance in a qualitative assessment of processed sheets |
| JP3196667B2 (en) * | 1996-10-31 | 2001-08-06 | アキヤマ印刷機製造株式会社 | Claw opening and closing mechanism of paper transport cylinder in sheet-fed printing press |
| JPH10264469A (en) * | 1997-03-28 | 1998-10-06 | Tec Corp | Ink-jet printer |
| DE19826891A1 (en) * | 1998-06-17 | 1999-12-23 | Heidelberger Druckmasch Ag | Sheet-fed rotary printing machine |
| US6684774B2 (en) | 1997-05-09 | 2004-02-03 | Heidelberger Druckmaschinen Ag | Sheet-fed rotary printing press |
| US6079888A (en) * | 1999-06-30 | 2000-06-27 | Hewlett-Packard | Wet colorant hard copy apparatus media handling to reduce cockle |
| US6048120A (en) * | 1999-07-22 | 2000-04-11 | Eastman Kodak Company | Vacuum imaging drum with angled vacuum holes |
| DE10042887A1 (en) * | 2000-08-31 | 2002-03-14 | Heidelberger Druckmasch Ag | Sheet processing machine |
| DE10156800B4 (en) * | 2000-12-19 | 2014-12-24 | Heidelberger Druckmaschinen Ag | printing unit |
| JP2002236374A (en) * | 2001-02-07 | 2002-08-23 | Fuji Photo Film Co Ltd | Rotating body |
| DE10138875C1 (en) * | 2001-08-08 | 2003-01-23 | Koenig & Bauer Ag | Method for holding and guiding sheets on drums in printing machines uses storage drum mounted in front of turning drum where first and second suction members grip and release sheets for smooth transfer to turning drum |
| DE10138855C1 (en) * | 2001-08-08 | 2003-02-20 | Koenig & Bauer Ag | Sheet holding and guiding system has suction system consisting of first controllable sucker and second sucker |
| AUPS061402A0 (en) * | 2002-02-19 | 2002-03-14 | Tna Australia Pty Limited | A device to aid packaging items |
| DE10235872A1 (en) * | 2002-07-30 | 2004-02-19 | Ebe Hesterman | Satellite printing machine for printing on arched substrates |
| US20050179763A1 (en) * | 2004-02-18 | 2005-08-18 | Mccarthy Robert | Media handling |
| EP2159069A1 (en) | 2008-08-29 | 2010-03-03 | Kba-Giori S.A. | Method for varnishing security documents, especially intaglio-printed security documents such as banknotes, and varnishing machine for carrying out the same |
| CN103009801B (en) * | 2012-11-22 | 2015-06-10 | 江苏昌昇集团股份有限公司 | Digital printing roller |
| DE102016205769A1 (en) * | 2015-05-06 | 2016-11-10 | Heidelberger Druckmaschinen Ag | Sheet transport drum and printing machine with such a sheet transport drum |
| US10324409B2 (en) * | 2015-10-30 | 2019-06-18 | Canon Finetech Nisca Inc. | Apparatus for folding sheets, apparatus for processing sheets, apparatus for forming images and method of folding sheets |
| CN106743913B (en) * | 2017-01-20 | 2018-11-23 | 青岛理工大学 | A kind of rotary drum-type flexible sheet substance suction device |
| CN107651465B (en) * | 2017-10-30 | 2023-11-28 | 天津长荣科技集团股份有限公司 | Paper adjusting and separating device |
| DE102018221967B4 (en) | 2018-12-17 | 2021-06-02 | Koenig & Bauer Ag | Sheet processing machine |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3096088A (en) * | 1961-03-20 | 1963-07-02 | Miller Printing Machinery Co | Sheet holding and transfer mechanism for presses |
| US3430946A (en) * | 1966-12-19 | 1969-03-04 | Miller Printing Machinery Co | Sheet tensioning and transfer mechanism for presses |
| AR206823A1 (en) * | 1974-11-02 | 1976-08-23 | Heidelberger Druckmasch Ag | TRANSLATION DRUM ON ROTARY SHEET PRINTER MACHINES |
| DE2621250C2 (en) * | 1976-05-13 | 1982-07-22 | Heidelberger Druckmaschinen Ag, 6900 Heidelberg | Sheet query device in a rotary printing press |
| DE2914362C3 (en) * | 1979-04-09 | 1984-12-20 | Heidelberger Druckmaschinen Ag, 6900 Heidelberg | Sheet transport drum on rotary printing machines |
| JPS55146761A (en) * | 1979-05-02 | 1980-11-15 | Shinohara Tekkosho:Kk | Paper drawing device for sheet-fed rotary press |
| US4660825A (en) * | 1979-07-26 | 1987-04-28 | Ricoh Company Ltd. | Sheet clamping device |
| DD151134A1 (en) * | 1980-06-30 | 1981-10-08 | Otfried Rudolph | DRIVE FOR FUNCTIONAL GROUPS IN BENDING CYLINDERS OF PRESSURE MACHINES |
| DE3036790C2 (en) * | 1980-09-30 | 1982-11-11 | Heidelberger Druckmaschinen Ag, 6900 Heidelberg | Sheet transfer drum for sheet-fed rotary printing machines that can be converted to perfecting |
| DE3534486A1 (en) * | 1985-09-27 | 1987-04-16 | Koenig & Bauer Ag | CLUTCH IN AN ARC ROTATION PRINTING MACHINE |
| DD248320B5 (en) * | 1986-04-21 | 1994-01-13 | Kba Planeta Ag | SUCTION SYSTEM IN ARC CYLINDERS |
| DE3738674A1 (en) * | 1987-10-12 | 1989-04-20 | Koenig & Bauer Ag | ARCH ROTARY PRINTING MACHINE, WHICH CAN BE CHANGED FROM BEAUTIFUL PRINTING TO BEAUTIFUL PRINTING AND REPRINTING |
| US5108085A (en) * | 1989-05-22 | 1992-04-28 | The Dow Chemical Company | Apparatus and method for the production of flexible products |
-
1992
- 1992-07-17 DE DE4223555A patent/DE4223555A1/en not_active Withdrawn
- 1992-07-17 DE DE9210569U patent/DE9210569U1/de not_active Expired - Lifetime
- 1992-08-05 DE DE59206089T patent/DE59206089D1/en not_active Expired - Fee Related
- 1992-08-05 EP EP92113307A patent/EP0527424B1/en not_active Expired - Lifetime
- 1992-08-10 US US07/926,703 patent/US5186107A/en not_active Expired - Fee Related
- 1992-08-11 RU SU5052967/12A patent/RU2101185C1/en not_active IP Right Cessation
- 1992-08-11 JP JP4214046A patent/JPH0767798B2/en not_active Expired - Lifetime
- 1992-08-12 CN CN92109332A patent/CN1030756C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| DE4223555A1 (en) | 1993-02-18 |
| US5186107A (en) | 1993-02-16 |
| CN1030756C (en) | 1996-01-24 |
| DE9210569U1 (en) | 1992-11-12 |
| JPH0767798B2 (en) | 1995-07-26 |
| EP0527424A1 (en) | 1993-02-17 |
| JPH05193111A (en) | 1993-08-03 |
| CN1070871A (en) | 1993-04-14 |
| RU2101185C1 (en) | 1998-01-10 |
| DE59206089D1 (en) | 1996-05-30 |
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