EP0563746B1 - Sheet reversing device in a rotary printing machine - Google Patents
Sheet reversing device in a rotary printing machine Download PDFInfo
- Publication number
- EP0563746B1 EP0563746B1 EP93104724A EP93104724A EP0563746B1 EP 0563746 B1 EP0563746 B1 EP 0563746B1 EP 93104724 A EP93104724 A EP 93104724A EP 93104724 A EP93104724 A EP 93104724A EP 0563746 B1 EP0563746 B1 EP 0563746B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sheet
- gripper
- cylinder
- impression cylinder
- turning
- 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 sheet turning device in a rotary printing press according to the preamble of claim 1.
- a sheet releasing system is on a reversing drum of sheet-fed rotary printing machines which works on the principle of sheet trailing edge transfer known for optional perfecting and reverse printing cylinders.
- the gripper system holding the sheet is moved in the cylinder rotation direction by a tilting device on the lateral surface of the cylinder, air being blown against the front edge of the sheet.
- a disadvantage of this sheet release system is that the holding forces on the outer surface of the cylinder are so great that they hold the sheet on the outer surface of the cylinder. Due to the air outlet openings arranged in the vicinity of the gripper, the sheet is blown to the side, so that the blown air escaping does not cover the entire length of the sheet and thus does not completely loosen it.
- the invention has for its object to provide a sheet turning device in a rotary printing press, which loosens the printed sheet to be transported on the lateral surface of the printing cylinder and passes it over to the reversing drum.
- both the sheet is mechanically lifted at the beginning of the print and the way is cleared for the tangential direction of action of the air nozzles between the sheet and the outer surface of the printing cylinder, so that the sheet is completely relaxed.
- the suction cups grasp the trailing edge of the sheet at a point in time at which the grippers are still effective ensures that the sheet is transferred to the turning drum in a manner that is appropriate to the register. Due to the temporal dimensioning of the blowing time to loosen the sheet, the sheet "floats" on the printing cylinder, so that the outside of the sheet printed with fresh ink does not smear. In the case of complicated detachment processes, for example in the case of sensitive or thin papers, the sheet can be ventilated by an additional blowing device at the other end of the sheet, so that even in such cases a secure sheet solution with high register accuracy is guaranteed.
- Fig. 1 shows the partial view of a multi-color sheet-fed rotary printing press with a machine frame, which is designated overall by 1, with a feed table 2, a stop drum 3, an intermediate drum 4, a first printing cylinder 6, a turning drum 7 in a first printing unit 8 and a second Printing unit 9 with a second printing cylinder 11.
- a blanket cylinder 12 In the first printing unit 8 there is also shown a blanket cylinder 12 and a plate cylinder 13.
- the first pressure cylinder 6 has two gripper systems 14; 16, which are shown in FIG. 4 as an enlarged representation of the detail X and in FIG. 5 as an enlarged representation of the detail Y.
- the details are X; Y shown in the horizontal.
- Fig. 4 the gripper system 16 is shown in the pivoted state and in Fig. 5 in the idle state.
- These gripper systems 14; 16 are each attached to a gripper bar 17 which extends in the axial direction of the pressure cylinder 6 and receives a number of grippers 18 which are connected to the gripper bar 17 via a gripper spindle 19 and bearing blocks 21.
- the grippers 18 work against a gripper support 22 which extends in the axial direction and is fixedly connected to a support arm 23 which has a bearing point 24.
- the gripper spindle 19 can be opened via a known roller lever 26 with cam roller 27 against a control cam 28 fixed to the frame.
- the gripper support 22 has an air supply 29 and an air duct 31 extending in the axial direction, which ends directly below the gripper support 22 in air outlet openings 32, for example blown air nozzles of a known type.
- a cam roller 33 which runs against a control cam 34 fixed to the frame and against the resistance of one in the cylinder channel 36 in guides 37; 38 arranged compression spring 39.
- the first guide 37 is located on the upper side edge of the cylinder channel and the second guide 38 on the end 41 of the gripper bar 17.
- the underside of the end 41 of the gripper bar 17 is against the stop 42 by the force of the spring 39 pressed.
- the sheet turning device works as follows: According to FIG. 1, the cylinders and drums rotate in the direction of rotation provided with arrows.
- the first pressure cylinder 6 is in the position in which a sheet 43 is just still held on its front edge 44 by means of the pivotable gripper system 16 shown in FIG. 4 and is already taken over on its rear edge 46 by the suction system 47 of the turning drum 7.
- the pivoting of the gripper system 16 in the position according to FIG. 4 takes place by the cam roller 33 running in the direction of the arrow over the control cam 34 fixed to the frame.
- the gripper system 16 thus pivots about the bearing point 24 at a pivot angle ⁇ .
- the swivel angle ⁇ is 1 to 5 degrees.
- the front edge 44 of the sheet 43 is moved back slightly as a result of the radius r around the bearing point 24 in the direction of the arrow B, and the air outlet openings 32 can release air in the tangential direction to the jacket 48 of the printing cylinder 6 between the sheet 43 and the jacket surface 48 of the printing cylinder 6 blow in the elbow 43.
- the sheet 49 on the printing cylinder 6 is still partially in the printing position with the rubber cylinder 12.
- the gripper system 14 is in the position shown in FIG. 5.
- the pressure cylinder 6 has moved by a small angle in the direction of the arrow compared to the illustration in FIG. 1.
- the gripper system 16 of the pressure cylinder 6 is just opening; the leading edge 44 of the sheet is thus released; the air has completely penetrated between arc 43 and cylinder surface 48.
- the suction system 47 moves in the direction of the gripper system 51 of the turning drum 7 for the purpose of transferring the sheet 43.
- Another sheet 53 is already on the way to the second pressure cylinder 11.
- Blower device 52 is arranged, which extends in the axial direction.
- This blowing device 52 is shown in FIG. 3 and blows air into a gap 50 between the sheet 43 and the jacket 48 of the printing cylinder 6 in the direction of the leading edge 44 of the sheet. This is particularly advantageous in the case of thin and smooth sheets of paper 43, since this is more difficult to do Allow the outer surface of the printing cylinder 6 to peel off compared to thicker paper sheets.
Description
Die Erfindung betrifft eine Bogenwendeeinrichtung in einer Rotationsdruckmaschine gemäß dem Oberbegriff des Patentanspruches 1.The invention relates to a sheet turning device in a rotary printing press according to the preamble of
In Bogenwendeeinrichtungen, bei denen der Bogen vom Druckzylinder mit Saugern abgenommen wird, besteht das Problem, daß der Bogen durch den vorgeschalteten Gummizylinder auf den Druckzylinder so aufgepreßt wird, daß sich kein zusammenhängendes Luftpolster mehr unter dem Bogen befindet.In sheet turning devices in which the sheet is removed from the printing cylinder with suction cups, there is the problem that the sheet is pressed onto the printing cylinder by the upstream rubber cylinder in such a way that there is no continuous air cushion under the sheet.
Die Folge davon ist, daß der Bogen beim Wendevorgang nicht vom Zylinder gelöst werden kann und die Sauger den Bogen nicht in die Gegenrichtung bewegen können.The consequence of this is that the sheet cannot be detached from the cylinder during the turning process and the suction cups cannot move the sheet in the opposite direction.
Bekannte Gegenmaßnahmen sind rauhe Zylinderoberflächen, die jedoch insbesondere bei dünnem Papier keine ausreichende Druckqualität ergeben.Known countermeasures are rough cylinder surfaces, which, however, do not produce sufficient print quality, especially with thin paper.
Weiterhin ist es bekannt, zur Lockerung der Bogen Siebe auf die Druckflächen der Zylinder zu spannen, was sehr aufwendig ist und darüberhinaus ebenfalls keinen guten Ausdruck ergibt.Furthermore, it is known to tension the bow screens on the pressure surfaces of the cylinders to loosen them, which is very complex and moreover also does not give a good expression.
Gemäß DE-OS 23 58 839 ist ein Bogenlösesystem an einer nach dem Prinzip der Bogenhinterkantenübernahme arbeitenden Wendetrommel von Bogenrotationsdruckmaschinen zum wahlweisen Schön- und Widerdruck vorgeordneter Zylinder bekannt. Dabei wird das den Bogen haltende Greifersystem in Zylinderdrehrichtung durch eine Kippeinrichtung auf der Mantelfläche des Zylinders bewegt, wobei gegen die Vorderkante des Bogens Luft geblasen wird.According to DE-OS 23 58 839, a sheet releasing system is on a reversing drum of sheet-fed rotary printing machines which works on the principle of sheet trailing edge transfer known for optional perfecting and reverse printing cylinders. The gripper system holding the sheet is moved in the cylinder rotation direction by a tilting device on the lateral surface of the cylinder, air being blown against the front edge of the sheet.
Nachteilig bei diesem Bogenlösesystem ist, daß die Haltekräfte auf der Mantelfläche des Zylinders so groß sind, daß diese den Bogen auf der Zylindermantelfläche festhalten. Durch die in der Nähe des Greiferaufschlages angeordneten Luftaustrittsöffnungen wird der Bogen seitlich angeblasen, so daß die austretende Blasluft nicht die gesamte Länge des Bogens erfaßt und diesen somit nicht vollständig lockert.A disadvantage of this sheet release system is that the holding forces on the outer surface of the cylinder are so great that they hold the sheet on the outer surface of the cylinder. Due to the air outlet openings arranged in the vicinity of the gripper, the sheet is blown to the side, so that the blown air escaping does not cover the entire length of the sheet and thus does not completely loosen it.
Darüberhinaus ist nachteilig, daß der Lösevorgang des Bogens auf der Mantelfläche des Zylinders beendet ist vor der Übernahme der Bogenhinterkante durch die Sauger, so daß der Passer nicht exakt gewährleistet ist.In addition, it is disadvantageous that the release process of the sheet on the outer surface of the cylinder has ended before the suction trailing edge of the sheet is taken over by the suction cups, so that the register is not exactly guaranteed.
Der Erfindung liegt die Aufgabe zugrunde, eine Bogenwendevorrichtung in einer Rotationsdruckmaschine zu schaffen, die den zu transportierenden, bedruckten Bogen auf der Mantelfläche des Druckzylinders lockert und der Wendetrommel passergerecht übergibt.The invention has for its object to provide a sheet turning device in a rotary printing press, which loosens the printed sheet to be transported on the lateral surface of the printing cylinder and passes it over to the reversing drum.
Erfindungsgemäß wird diese Aufgabe durch das Kennzeichen des Patentanspruches 1 gelöst.According to the invention, this object is achieved by the characterizing part of
Bei der Anwendung der Erfindung entstehen insbesondere folgende Vorteile: Durch Schwenken des Greiferbalkens über den Zylinderumfang hinaus wird sowohl der Bogen am Druckanfang mechanisch abgehoben als auch der Weg freigemacht für die tangentiale Wirkungsrichtung der Luftdüsen zwischen dem Bogen und der Mantelfläche des Druckzylinders, so daß der Bogen vollständig gelockert wird.When using the invention, the following advantages arise in particular: by pivoting the gripper bar beyond the cylinder circumference, both the sheet is mechanically lifted at the beginning of the print and the way is cleared for the tangential direction of action of the air nozzles between the sheet and the outer surface of the printing cylinder, so that the sheet is completely relaxed.
Dadurch, daß die Sauger die Bogenhinterkante zu einem Zeitpunkt fassen, an dem die Greifer noch wirksam sind, ist eine passergerechte Übernahme des Bogens auf die Wendetrommel gewährleistet. Durch die zeitliche Bemessung der Blasdauer zur Lockerung des Bogens "schwimmt" dieser auf dem Druckzylinder, so daß die mit frischer Farbe bedruckte Außenseite des Bogens nicht verschmiert. Bei komplizierten Ablöseprozessen, beispielsweise bei empfindlichen oder dünnen Papieren, kann der Bogen durch eine zusätzliche Blaseinrichtung am anderen Bogenende belüftet werden, so daß auch in solchen Fällen eine sichere Bogenlösung bei hoher Passergenauigkeit gewährleistet ist.The fact that the suction cups grasp the trailing edge of the sheet at a point in time at which the grippers are still effective ensures that the sheet is transferred to the turning drum in a manner that is appropriate to the register. Due to the temporal dimensioning of the blowing time to loosen the sheet, the sheet "floats" on the printing cylinder, so that the outside of the sheet printed with fresh ink does not smear. In the case of complicated detachment processes, for example in the case of sensitive or thin papers, the sheet can be ventilated by an additional blowing device at the other end of the sheet, so that even in such cases a secure sheet solution with high register accuracy is guaranteed.
Die Erfindung soll nachstehend an einem Ausführungsbeispiel näher erläutert werden. In den dazugehörigen Zeichnungen zeigen:
- Fig. 1
- die Teilansicht einer Mehrfarben-Bogenrotationsdruckmaschine einschließlich Wendetrommel im Wendebetrieb mit der erfindungsgemäßen Einrichtung;
- Fig. 2
- eine Teildarstellung gemäß Fig. 1, jedoch zu einem späteren Zeitpunkt;
- Fig. 3
- eine Darstellung gemäß Fig. 2, jedoch mit einer zusätzlichen Blasdüsenanordnung;
- Fig. 4
- die Einzelheit "X" nach Fig. 1;
- Fig. 5
- die Einzelheit "Y" nach Fig. 1.
- Fig. 1
- the partial view of a multi-color sheet-fed rotary printing press including reversing drum in reversing operation with the device according to the invention;
- Fig. 2
- a partial view of Figure 1, but at a later time.
- Fig. 3
- a representation of Figure 2, but with an additional blow nozzle arrangement.
- Fig. 4
- the detail "X" of FIG. 1;
- Fig. 5
- the detail "Y" according to FIG. 1.
Fig. 1 zeigt die Teilansicht einer Mehrfarben-Bogenrotationsdruckmaschine mit einem Maschinengestell, das insgesamt mit 1 bezeichnet ist, mit einem Anlegetisch 2, einer Stopptrommel 3, einer Zwischentrommel 4, einem ersten Druckzylinder 6, einer Wendetrommel 7 in einem ersten Druckwerk 8 und einem zweiten Druckwerk 9 mit einem zweiten Druckzylinder 11. Im ersten Druckwerk 8 ist noch ein Gummizylinder 12 und ein Plattenzylinder 13 dargestellt. Der erste Druckzylinder 6 weist zwei Greifersysteme 14; 16 auf, die in Fig. 4 als vergrößerte Darstellung der Einzelheit X und in Fig. 5 als vergrößerte Darstellung der Einzelheit Y gezeigt sind. Dabei sind die Einzelheiten X; Y in der Waagerechten dargestellt.Fig. 1 shows the partial view of a multi-color sheet-fed rotary printing press with a machine frame, which is designated overall by 1, with a feed table 2, a
In Fig. 4 ist das Greifersystem 16 in verschwenktem Zustand und in Fig. 5 im Ruhezustand dargestellt. Diese Greifersysteme 14; 16 sind jeweils auf einem Greiferbalken 17 befestigt, der sich in axialer Richtung des Druckzylinders 6 erstreckt und eine Anzahl von Greifern 18 aufnimmt, die über eine Greiferspindel 19 und Lagerböcke 21 mit dem Greiferbalken 17 verbunden sind.In Fig. 4 the
Die Greifer 18 arbeiten gegen eine sich in axialer Richtung erstreckende Greiferauflage 22, die mit einem Tragarm 23, der eine Lagerstelle 24 aufweist, fest verbunden ist. Die Greiferspindel 19 ist über einen bekannten Rollenhebel 26 mit Kurvenrolle 27 gegen eine gestellfeste Steuerkurve 28 öffenbar. Die Greiferauflage 22 weist eine Luftzuführung 29 und einen sich in axialer Richtung erstreckenden Luftkanal 31 auf, der unmittelbar unter der Greiferauflage 22 in Luftaustrittsöffnungen 32, beispielsweise Blasluftdüsen bekannter Bauart, endet.The
Unterhalb des Lagerbockes 21 befindet sich eine Kurvenrolle 33, die gegen eine gestellfeste Steuerkurve 34 läuft und gegen den Widerstand einer im Zylinderkanal 36 in Führungen 37; 38 angeordneten Druckfeder 39. Dabei befindet sich die erste Führung 37 an der oberen Seitenkante des Zylinderkanals und die zweite Führung 38 auf dem Ende 41 des Greiferbalkens 17. Die Unterseite des Endes 41 des Greiferbalkens 17 wird durch die Kraft der Feder 39 gegen den Anschlag 42 gedrückt.Below the
Die erfindungsgemäße Bogenwendeeinrichtung arbeitet wie folgt: Gemaß Fig. 1 drehen sich die Zylinder und Trommeln in der mit Pfeilen versehenen Drehrichtung. Der erste Druckzylinder 6 steht in der Stellung, in der ein Bogen 43 an seiner Vorderkante 44 mittels des in Fig. 4 gezeigten verschwenkbaren Greifersystems 16 gerade noch gehalten wird und bereits an seiner Hinterkante 46 vom Saugersystem 47 der Wendetrommel 7 übernommen ist.The sheet turning device according to the invention works as follows: According to FIG. 1, the cylinders and drums rotate in the direction of rotation provided with arrows. The
Das Verschwenken des Greifersystems 16 in der Stellung nach Fig. 4 erfolgt durch das Ablaufen der Kurvenrolle 33 in Pfeilrichtung über die gestellfeste Steuerkurve 34. Somit schwenkt das Greifersystem 16 um die Lagerstelle 24 in einem Schwenkwinkel α . Der Schwenkwinkel α beträgt 1 bis 5 Grad. Die Vorderkante 44 des Bogens 43 wird dabei infolge des Radiuses r um die Lagerstelle 24 geringfügig in Pfeilrichtung B zurückbewegt, und die Luftaustrittsöffnungen 32 können in tangentialer Richtung zum Mantel 48 des Druckzylinders 6 zwischen dem Bogen 43 und der Mantelfläche 48 des Druckzylinders 6 Luft zum Lösen des Bogens 43 einblasen. Der Bogen 49 auf dem Druckzylinder 6 befindet sich noch teilweise in Druckstellung mit dem Gummizylinder 12. Das Greifersystem 14 befindet sich dabei in der in Fig. 5 gezeigten Lage.The pivoting of the
Gemäß Fig. 2 hat sich der Druckzylinder 6 um einen geringen Winkelbetrag in Pfeilrichtung bewegt gegenüber der Darstellung in Fig. 1. Das Greifersystem 16 des Druckzylinders 6 öffnet sich gerade; die Bogenvorderkante 44 wird somit losgelassen; die Luft ist vollständig zwischen Bogen 43 und Zylindermantelfläche 48 gedrungen. Das Saugersystem 47 bewegt sich in Richtung Greifersystem 51 der Wendetrommel 7 zwecks Übergabe des Bogens 43. Ein weiterer Bogen 53 befindet sich bereits auf dem Weg zum zweiten Druckzylinder 11.According to FIG. 2, the
Gemäß Fig. 3 ist zwischen dem ersten Druckzylinder 6 und der Wendetrommel 7 - in Bogentransportrichtung gesehen - vor der Übergabe des Bogens 43 von dem ersten Druckzylinder 6 zur Wendetrommel 7 eine gestellfeste Blaseinrichtung 52 angeordnet, die sich in axialer Richtung erstreckt. Diese Blaseinrichtung 52 ist in Fig. 3 gezeigt und bläst Luft in einen Spalt 50 zwischen den Bogen 43 und den Mantel 48 des Druckzylinders 6 in Richtung Bogenvorderkante 44. Das ist besonders bei dünnen und glatten Papierbogen 43 von Vorteil, da sich diese schwieriger von der Mantelfläche des Druckzylinders 6 ablösen lassen gegenüber dickeren Papierbogen.According to FIG. 3, before the transfer of the
- 11
- MaschinengestellMachine frame
- 22nd
- AnlegetischFeed table
- 33rd
- StopptrommelStop drum
- 44th
- ZwischentrommelIntermediate drum
- 55
- --
- 66
- Druckzylinder, ersterImpression cylinder, first
- 77
- WendetrommelTurning drum
- 88th
- Druckwerk, erstesPrinting unit, first
- 99
- Druckwerk, zweitesPrinting unit, second
- 1010th
- --
- 1111
- Druckzylinder, zweiterImpression cylinder, second
- 1212th
- GummizylinderRubber cylinder
- 1313
- PlattenzylinderPlate cylinder
- 1414
- GreifersystemGripper system
- 1515
- --
- 1616
- GreifersystemGripper system
- 1717th
- GreiferbalkenGripper bar
- 1818th
- GreiferGripper
- 1919th
- GreiferspindelGripper spindle
- 2020th
- --
- 2121
- LagerbockBearing block
- 2222
- GreiferauflageGripper pad
- 2323
- TragarmBeam
- 2424th
- LagerstelleDepository
- 2525th
- --
- 2626
- RollenhebelRoller lever
- 2727
- KurvenrolleCam roller
- 2828
- SteuerkurveControl curve
- 2929
- LuftzuführungAir supply
- 3030th
- --
- 3131
- LuftkanalAir duct
- 3232
- Blasluftdüse, LuftaustrittsöffnungBlowing air nozzle, air outlet opening
- 3333
- KurvenrolleCam roller
- 3434
- SteuerkurveControl curve
- 3535
- --
- 3636
- ZylinderkanalCylinder channel
- 3737
- Führungguide
- 3838
- Führungguide
- 3939
- DruckfederCompression spring
- 4040
- --
- 4141
- Ende (17)End (17)
- 4242
- Anschlagattack
- 4343
- Bogenbow
- 4444
- Vorderkante (43)Leading edge (43)
- 4545
- --
- 4646
- Hinterkante (43)Trailing edge (43)
- 4747
- Saugersystem (7)Suction system (7)
- 4848
- Mantel (6)Coat (6)
- 4949
- Bogenbow
- 5050
- Spaltgap
- 5151
- Greifersystem (7)Gripper system (7)
- 5252
- BlaseinrichtungBlowing device
- 5353
- Bogenbow
- αα
- SchwenkwinkelSwivel angle
- rr
- Radiusradius
- BB
- PfeilrichtungArrow direction
- XX
- Einzelheit GreifersystemDetail gripper system
- YY
- Einzelheit GreifersystemDetail gripper system
Claims (3)
- Sheet-turning device in a rotary printing machine, in which the sheet is delivered [sic] by grippers, arranged on a gripper strip, of a first impression cylinder and the sheet trailing edge is removed by suckers of a neighbouring turning drum and is subsequently transferred to a second impression cylinder, characterised in that a gripper beam (17; 22, 23) can be pivoted at an angle (α) in the radial direction above the lateral surface (48) of the first impression cylinder (6) about a bearing point (24), in that the gripper beam (17; 22; 23) has air outlet openings (32) which act in the tangential direction with respect to the lateral surface (48) of the first impression cylinder (6).
- Sheet-turning device according to Claim 1, characterised in that there is arranged above the first impression cylinder (6) and the turning drum (7) an axially parallel blowing device (52) which is fixed to the frame and is directed motionally downwards at a gap (50) between first impression cylinder (6) and turning drum (7).
- Sheet-turning device according to Claims 1 and 2, characterised in that the pivoting movement of the gripper beam (17; 22; 23) is effected by a cam mechanism (26; 27; 28).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4210327 | 1992-03-30 | ||
| DE4210327A DE4210327A1 (en) | 1992-03-30 | 1992-03-30 | Sheet turning device in a rotary printing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0563746A1 EP0563746A1 (en) | 1993-10-06 |
| EP0563746B1 true EP0563746B1 (en) | 1996-09-18 |
Family
ID=6455383
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP93104724A Expired - Lifetime EP0563746B1 (en) | 1992-03-30 | 1993-03-23 | Sheet reversing device in a rotary printing machine |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US5271323A (en) |
| EP (1) | EP0563746B1 (en) |
| JP (1) | JPH0798394B2 (en) |
| DE (2) | DE4210327A1 (en) |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4424977C2 (en) * | 1994-07-15 | 2000-08-10 | Koenig & Bauer Ag | Bow deflector |
| DE4424972C2 (en) * | 1994-07-15 | 1998-03-19 | Kba Planeta Ag | Installation on sheet-guiding cylinders |
| DE19800414C5 (en) * | 1998-01-08 | 2005-06-30 | Koenig & Bauer Ag | Device for acting on a bow |
| DE19833901A1 (en) | 1998-07-28 | 2000-02-03 | Heidelberger Druckmasch Ag | Method and device for transferring the trailing edge of a sheet in a turning device of a sheet-fed rotary printing press |
| US6104000A (en) * | 1998-11-20 | 2000-08-15 | Eastman Kodak Company | Dual function air skive assembly for reproduction apparatus fuser rollers |
| ES2204451T3 (en) * | 1999-02-26 | 2004-05-01 | Komori Corporation | DEVICE FOR THE TRANSPORT OF OBJECTS IN THE FORM OF SHEETS IN A MACHINE TO PRINT SHEETS. |
| DE19933304A1 (en) * | 1999-07-16 | 2001-01-25 | Roland Man Druckmasch | Feeding unit for a sheet processing machine |
| DE10040951A1 (en) * | 1999-09-06 | 2001-03-08 | Heidelberger Druckmasch Ag | Printer has roller and functional elements , spring elements, sheet gripper and feeder cylinder |
| DE10310690A1 (en) * | 2002-04-12 | 2003-10-30 | Heidelberger Druckmasch Ag | Sheet guide in sheet-processing machine especially rotary printer has pick-up pieces, free air jet nozzles and air cushion |
| DE10315193A1 (en) * | 2002-04-18 | 2003-10-30 | Heidelberger Druckmasch Ag | Reversing assembly for sheet processing machine, has recesses that permit gripper devices to grip sheet trailing edge such that recesses are formed at various positions in circumferential surface for adapting to different sheet formats |
| DE102005046097A1 (en) * | 2005-09-27 | 2007-04-05 | Heidelberger Druckmaschinen Ag | Printing press cylinder-to-cylinder sheet paper transfer system feeds sheet through common tangent trajectory |
| DE102006026667A1 (en) * | 2006-06-08 | 2007-12-13 | Koenig & Bauer Aktiengesellschaft | Apparatus and method for guiding sheets in printing machines |
| DE102006032922B3 (en) * | 2006-07-15 | 2007-09-27 | Koenig & Bauer Aktiengesellschaft | Sheet feeding assisting device for use in printing machine, has sheet stripping unit movably arranged in sheet running direction such that it anticipates front edge of subsequent sheet to be turned |
| US20090035046A1 (en) * | 2007-07-31 | 2009-02-05 | Belbey Jason S | Print drum |
| DE102007061556B4 (en) * | 2007-12-18 | 2011-06-09 | Kba-Metronic Aktiengesellschaft | Transport cylinder, with movable gripper device and method for transporting sheets |
| JP2013184758A (en) * | 2012-03-06 | 2013-09-19 | Fuji Xerox Co Ltd | Transport device, transfer device, and image forming apparatus |
| DE102020107838B4 (en) | 2020-03-23 | 2023-05-11 | Koenig & Bauer Ag | Sheet processing machine with a sheet separator |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3768406A (en) * | 1972-07-03 | 1973-10-30 | Polygraph Leipzig | Sheet gripper |
| DD101337A1 (en) * | 1972-12-11 | 1973-11-12 | ||
| DE2354418C3 (en) * | 1973-10-31 | 1980-04-17 | Heidelberger Druckmaschinen Ag, 6900 Heidelberg | Sheet transfer drum for printing machines |
| DE2621250C2 (en) * | 1976-05-13 | 1982-07-22 | Heidelberger Druckmaschinen Ag, 6900 Heidelberg | Sheet query device in a rotary printing press |
| DE2724621A1 (en) * | 1977-06-01 | 1978-12-14 | Maschf Augsburg Nuernberg Ag | SHEET TURNING DEVICE OF A SHEET ROTARY PRINTING PRESS IN IN-LINE CONSTRUCTION |
| DE2914362C3 (en) * | 1979-04-09 | 1984-12-20 | Heidelberger Druckmaschinen Ag, 6900 Heidelberg | Sheet transport drum on rotary printing machines |
| CH641112A5 (en) * | 1979-10-17 | 1984-02-15 | Grapha Holding Ag | FEEDER FOR PRINTED SHEET. |
| DE3529656A1 (en) * | 1985-08-19 | 1987-02-26 | Roland Man Druckmasch | SPRING GRIPPER FOR ARC ROTATION PRINTING MACHINES |
| DE3529639A1 (en) * | 1985-08-19 | 1987-02-26 | Roland Man Druckmasch | SPRING GRIPPER FOR ARC ROTATION PRINTING MACHINES |
| DE4223555A1 (en) * | 1991-08-12 | 1993-02-18 | Koenig & Bauer Ag | DRUM FOR TRANSPORTING BOWS |
-
1992
- 1992-03-30 DE DE4210327A patent/DE4210327A1/en not_active Withdrawn
-
1993
- 1993-03-23 DE DE59303804T patent/DE59303804D1/en not_active Expired - Fee Related
- 1993-03-23 EP EP93104724A patent/EP0563746B1/en not_active Expired - Lifetime
- 1993-03-26 US US08/037,590 patent/US5271323A/en not_active Expired - Fee Related
- 1993-03-29 JP JP5069535A patent/JPH0798394B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| DE59303804D1 (en) | 1996-10-24 |
| JPH0798394B2 (en) | 1995-10-25 |
| EP0563746A1 (en) | 1993-10-06 |
| DE4210327A1 (en) | 1993-10-07 |
| US5271323A (en) | 1993-12-21 |
| JPH068397A (en) | 1994-01-18 |
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