EP1314556B1 - Sheet delivering device for a sheet-processing machine - Google Patents
Sheet delivering device for a sheet-processing machine Download PDFInfo
- Publication number
- EP1314556B1 EP1314556B1 EP20020025998 EP02025998A EP1314556B1 EP 1314556 B1 EP1314556 B1 EP 1314556B1 EP 20020025998 EP20020025998 EP 20020025998 EP 02025998 A EP02025998 A EP 02025998A EP 1314556 B1 EP1314556 B1 EP 1314556B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sheet
- gripper
- processing machine
- delivery device
- chains
- 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 - Fee Related
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
- B65H29/02—Delivering or advancing articles from machines; Advancing articles to or into piles by mechanical grippers engaging the leading edge only of the articles
- B65H29/04—Delivering or advancing articles from machines; Advancing articles to or into piles by mechanical grippers engaging the leading edge only of the articles the grippers being carried by endless chains or bands
- B65H29/041—Delivering or advancing articles from machines; Advancing articles to or into piles by mechanical grippers engaging the leading edge only of the articles the grippers being carried by endless chains or bands and introducing into a pile
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- 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
- B41F21/08—Combinations of endless conveyors and grippers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
- B65H29/02—Delivering or advancing articles from machines; Advancing articles to or into piles by mechanical grippers engaging the leading edge only of the articles
- B65H29/04—Delivering or advancing articles from machines; Advancing articles to or into piles by mechanical grippers engaging the leading edge only of the articles the grippers being carried by endless chains or bands
- B65H29/042—Intermediate conveyors, e.g. transferring devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2404/00—Parts for transporting or guiding the handled material
- B65H2404/30—Chains
- B65H2404/34—Gripper bars bridging at least two chains running synchronously and parallely
- B65H2404/341—Details of driving or return drum
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2801/00—Application field
- B65H2801/03—Image reproduction devices
- B65H2801/21—Industrial-size printers, e.g. rotary printing press
Definitions
- Sheet delivery for a sheet-processing machine in particular rotary printing machine with chains running on arranged on a sprocket sprockets and associated with the chain gripper systems with gripper clutches with which a bow is removable from an upstream cylinder and in the region of the wrap angle between the chains and the sprockets are arranged on a circular track around the Kettenradwelle feasible.
- a device of the type mentioned is from the document DE-PS 830959 C1 known.
- the gripper pads of the gripper systems protrude beyond the pitch circle diameter of the sprocket wheels about which the transport chains in the area of the transfer point of the sheets are guided by the impression cylinder.
- the gripper pads of the gripper systems move during the sheet transfer faster than the ever guided around a Umlenkkettenrad transport chains. This speed difference results from the greater distance of the gripper pads to the axis of rotation of the sprockets, as it has the chains to the axis of rotation of the sprockets.
- the disadvantage is that the movement-causing segment does not rotate and thus there is a risk of greasing.
- DE-OS 23 08 025 A1 For example, the diameter of the take-down drum is made equal to the diameter of the sprockets.
- a correction gear is provided, which causes the chain wheels and thus also the removal drum to advance or lag relative to the impression cylinder.
- the DE 4 111 262 C discloses a sheet guide on sheet guiding drums of sheet-fed presses, in which pneumatic or mechanical working sheet guiding elements are arranged below the conveying path.
- the invention has for its object to provide a device of the aforementioned type, with which improves the sheet running rest and the wave formation is largely avoided.
- the present invention it is provided in the sheet delivery of a log processing machine with chain delivery to make the radii of the circles of the chain drive wheels larger than the radial distance of the bearing surfaces of the gripper strikes to the axis of rotation of the chain drive wheels in the region of the wrap angle between chains and sprockets.
- the intended radial distance corresponds to the radius of the circular path which describes the contact surfaces of the gripper bumps in the region of the angle of wrap between chains and chain drive wheels about the sprocket axis of rotation.
- the sheet delivery according to the invention is particularly suitable for printing machines in which the gripper bumps of the gripper carriage in the curved areas rotate on the same radii as that of the upstream cylinder.
- the invention also in Printing presses are applied, in which the radii are in a different size ratio to each other, such as in embodiments in which the diameter of the upstream cylinder is twice as large as that of the pick-up drum or the sprocket shaft.
- the arranged on the rotating gripper carriage gripper strokes move in the range of sheet removal from the upstream cylinder in a circular path and have the same peripheral speed as the gripper charges of the upstream cylinder.
- the upstream cylinder is the last cylinder of the printing press and can be a printing cylinder, a lacquer cylinder, a transfer cylinder or another cylinder.
- the peripheral speed of the gripper lifts the gripper carriage is on the circular sections of the gripper carriage track while smaller than the peripheral speed of the circulating chains, which are associated with the gripper carriage.
- the gripper carriages and the loops conveyed in the gripper closure are accelerated to chain speed as they reach the drain zone of the chains from the sprockets.
- Fig. 1 and 2 is the printed and possibly painted sheet 5 recognizable, which rests on the outer radius of the last cylinder 1 of a printing machine, which may be, for example, a printing cylinder or paint cylinder.
- a chain conveyor system is provided.
- the chain conveyor system has front and rear sprockets over which chains 12 and associated therewith gripper carriage circulate.
- the assignment of the gripper carriage to the chains is carried out directly by the gripper carriage are articulated via driving pins on the chains and thus are guided by the chain.
- a version with separate chain and Greiferwagen arrangementsbahn is also possible.
- the sprockets are arranged rotationally fixed on a sprocket 2 , which in turn is driven.
- the course of the chains is in Fig.
- the gripper carriages associated with the chains extend over the format width and receive the gripper fingers 3 fixedly connected to a gripper shaft and spaced from each other.
- Gripper cuffs 4 are formed on the gripper carriages.
- rotation of the gripper shaft of the sheet 5, 6, 7 can be fixed at its front edge between gripper fingers 3 and gripper 4 .
- an air cushion sheet 9 and an adjoining this sheet guiding device 11 are provided below the printing machine side sprockets, which are acted upon with blown air.
- drum caps 8 are arranged on the sprocket shaft 2 .
- support disks may be provided or it may be a corresponding large diameter of the sprocket 2 are formed.
- the drum caps 8 are covered with a super-blue cloth to reduce the risk of fouling.
- the front sprockets are arranged adjacent to the last cylinder 1 of the printing press.
- the orbital chains are moved by the sprockets in the area of the wrap angle between chains and sprockets in a circular path around the axis the sprocket shaft 2 out.
- the path of the chain links corresponds to a section of the pitch circle of the sprockets 13 .
- the gripper carriages are assigned to the chains and also move in the region of the wrap angle on a circular path.
- the gripper surfaces 4 are formed on the gripper carriage that they protrude beyond the chain center line and in the region of the wrap angle a greater radial distance from the axis of rotation of the sprocket 2 than the members of the chains.
- the gripper cams 4 move faster on the circular track sections than the chains.
- the gripper surfaces 4 are formed on the gripper carriage so as to extend below the chain centerline. They are thus guided in the region of the wrap angle at a smaller radial distance from the axis of rotation of the sprocket shaft 2 as the chain links and thus have lower peripheral speed. As the chains run off the sprockets, the gripper surfaces 4 are accelerated to chain speed with the sheets fixed on them.
- the sprockets and the pressure cylinder are dimensioned in the preferred embodiment so that they run one track to each other.
- the pitch circle of the sprockets 13 is larger than the diameter of the impression cylinder. 1 In order to make this possible, it is provided that the diameter of the impression cylinder 1 be made smaller in the areas opposite the sprockets.
- Another contrast preferred variant provides to arrange the sprockets outside the end faces of the printing cylinder 1 .
- the operation of the invention will be described below.
- the printing sheet 5 is guided on the circumference of the upstream cylinder 1 , wherein its front edge is in gripper closure with the gripper system of the upstream cylinder 1, not shown.
- the sheet leading edge is then taken over by one of the gripper systems of the jib circulating on chains, for which purpose the sheet is fixed between gripper 3 and gripper extension 4 .
- the gripper cuffs 4 of the transferring and the receiving gripper system move at the same peripheral speed.
Description
Bogenausleger für eine bogenverarbeitende Maschine, insbesondere Rotationsdruckmaschine mit Ketten, die über auf einer Kettenradwelle angeordnete Kettenräder laufen und mit den Ketten zugeordneten Greifersystemen mit Greiferaufschlägen, mit denen ein Bogen von einem vorgelagerten Zylinder abnehmbar ist und die im Bereich des Umschlingungswinkels zwischen den Ketten und den Kettenrädern auf einer kreisförmigen Bahn um die Kettenradwelle führbar angeordnet sind.Sheet delivery for a sheet-processing machine, in particular rotary printing machine with chains running on arranged on a sprocket sprockets and associated with the chain gripper systems with gripper clutches with which a bow is removable from an upstream cylinder and in the region of the wrap angle between the chains and the sprockets are arranged on a circular track around the Kettenradwelle feasible.
Beim Abtransport der bedruckten Bögen im Ausleger kommt es häufig zur Wellenbildung, wenn der Bogen von den auf der Kettenradwelle angeordneten Abnahmetrommeln abläuft.When the printed sheets are transported away in the delivery arm, corrugation frequently occurs when the sheet runs off the take-off drums arranged on the sprocket shaft.
Es ist allgemein bekannt, Bögen in der Auslage mit Kettenfördersystemen zu transportieren. Dabei werden Greiferwagen durch Ketten angetrieben und direkt oder indirekt geführt. In den Greiferwagen sind Greifer angeordnet, die mit Greiferaufschlägen zusammenwirken und den Druckbogen von dem vorgelagerten Zylinder abnehmen und ihn abtransportieren.It is well known to transport sheets in the delivery with chain conveyor systems. This gripper carriage are driven by chains and guided directly or indirectly. In the gripper carriage grippers are arranged, which cooperate with gripper mounts and remove the sheet from the upstream cylinder and transport it away.
Eine Vorrichtung der genannten Art ist aus der Druckschrift
Die Greiferauflagen der Greifersysteme bewegen sich während der Bogenübergabe schneller als die je um ein Umlenkkettenrad geführten Transportketten. Diese Geschwindigkeitsdifferenz ergibt sich aus dem größeren Abstand der Greiferauflagen zu der Drehachse der Kettenräder, als ihn die Ketten zu der Drehachse der Kettenräder aufweisen. Laufen anschließend die Transportketten von den Umlenkkettenrädern ab und bewegen sich geradlinig weiter, so vermindert sich die Geschwindigkeit der Greiferauflagen der Greifersysteme auf die Geschwindigkeit der Transportketten. Der bedruckte Bogen liegt zu diesem Zeitpunkt mit seinem hinteren Bereich noch an der Abnahmetrommel an. Der hintere Bereich des bedruckten Bogens bewegt sich damit schneller vorwärts, als die im Greiferschluss geführte Vorderkante des Bogens, die Kettengeschwindigkeit hat. Das wirkt sich negativ auf die Bogenführung aus. Infolge der Geschwindigkeitsdifferenz bzw. des sogenannten Bogenüberschusses entstehen Wellen und der Bogenlauf wird gestört.
Um diesem Zustand abzuhelfen, ist gemäß der
Nach der
The gripper pads of the gripper systems move during the sheet transfer faster than the ever guided around a Umlenkkettenrad transport chains. This speed difference results from the greater distance of the gripper pads to the axis of rotation of the sprockets, as it has the chains to the axis of rotation of the sprockets. Then run the transport chains of the Umlenkkettenrädern and move in a straight line, the speed of the gripper pads of the gripper systems is reduced to the speed of the transport chains. The printed sheet is at this time with its rear area still on the pick-up drum on. The back area of the printed sheet thus moves faster forward than the leading edge of the sheet in the gripper, which has chain speed. This has a negative effect on the bowing. As a result of the speed difference or the so-called bow surplus waves and the sheet run is disturbed.
To remedy this situation is according to the
After
Gemäß der
Die
Aus der
Aus der
Ausgehend von den genannten Nachteilen liegt der Erfindung die Aufgabe zugrunde, eine Vorrichtung der vorgenannten Art zu schaffen, mit der die Bogenlaufruhe verbessert und die Wellenbildung weitgehend vermieden wird.Based on the disadvantages mentioned, the invention has for its object to provide a device of the aforementioned type, with which improves the sheet running rest and the wave formation is largely avoided.
Gelöst wird diese Aufgabe durch die Merkmale des Patentanspruchs 1. Weitere vorteilhafte Ausführungen ergeben sich aus den Unteransprüchen.This object is achieved by the features of
Gemäß der vorliegenden Erfindung wird im Bogenausleger einer bogenverarbeitenden Maschine mit Kettenauslage vorgesehen, die Radien der Tellkreise der Kettenantriebsräder größer auszuführen als den radialen Abstand der Auflageflächen der Greiferaufschläge zu der Drehachse der Kettenantriebsräder im Bereich des Umschlingungswinkels zwischen Ketten und Kettenrädern. Der vorgesehene radiale Abstand entspricht dem Radius der kreisförmigen Bahn, die die Auflageflächen der Greiferaufschläge im Bereich des Umschlingungswinkels zwischen Ketten und Kettenantriebsrädern um die Kettenraddrehachse beschreibt.
Der erfindungsgemäße Bogenausleger ist besonders für Druckmaschinen geeignet, bei denen die Greiferaufschläge der Greiferwagen in den kurvenförmigen Bereichen auf gleichen Radien umlaufen wie die des vorgelagerten Zylinders. Ebenso kann die Erfindung auch bei Druckmaschinen angewendet werden, bei denen die Radien in einem anderen Größenverhältnis zueinander stehen, wie z.B. bei Ausführungen, bei denen der Durchmesser des vorgelagerten Zylinders doppelt so groß ist, wie der der Abnahmetrommel bzw. der Kettenradwelle.According to the present invention, it is provided in the sheet delivery of a log processing machine with chain delivery to make the radii of the circles of the chain drive wheels larger than the radial distance of the bearing surfaces of the gripper strikes to the axis of rotation of the chain drive wheels in the region of the wrap angle between chains and sprockets. The intended radial distance corresponds to the radius of the circular path which describes the contact surfaces of the gripper bumps in the region of the angle of wrap between chains and chain drive wheels about the sprocket axis of rotation.
The sheet delivery according to the invention is particularly suitable for printing machines in which the gripper bumps of the gripper carriage in the curved areas rotate on the same radii as that of the upstream cylinder. Likewise, the invention also in Printing presses are applied, in which the radii are in a different size ratio to each other, such as in embodiments in which the diameter of the upstream cylinder is twice as large as that of the pick-up drum or the sprocket shaft.
Die an den umlaufenden Greiferwagen angeordneten Greiferaufschläge bewegen sich im Bereich der Bogenabnahme vom vorgelagerten Zylinder auf einer kreisförmigen Bahn und haben dieselbe Umfangsschwindigkeit wie die Greiferaufschläge des vorgelagerten Zylinders. Der vorgelagerte Zylinder ist der letzte Zylinder der Druckmaschine und kann ein Druckzylinder, ein Lackzylinder, ein Transferzylinder oder ein sonstiger Zylinder sein.
Die Umfangsgeschwindigkeit der Greiferaufschläge der Greiferwagen ist auf den kreisförmigen Abschnitten der Greiferwagenbahn dabei jedoch kleiner als die Umfangsgeschwindigkeit der umlaufenden Ketten, denen die Greiferwagen zugeordnet sind. Die Greiferwagen und die im Greiferschluss geförderten Bögen werden auf Kettengeschwindigkeit beschleunigt, wenn sie die Ablaufzone der Ketten von den Kettenrädern erreichen.The arranged on the rotating gripper carriage gripper strokes move in the range of sheet removal from the upstream cylinder in a circular path and have the same peripheral speed as the gripper charges of the upstream cylinder. The upstream cylinder is the last cylinder of the printing press and can be a printing cylinder, a lacquer cylinder, a transfer cylinder or another cylinder.
However, the peripheral speed of the gripper lifts the gripper carriage is on the circular sections of the gripper carriage track while smaller than the peripheral speed of the circulating chains, which are associated with the gripper carriage. The gripper carriages and the loops conveyed in the gripper closure are accelerated to chain speed as they reach the drain zone of the chains from the sprockets.
In überraschender Weise hat sich dabei gezeigt, dass die beim Ablauf von den Kettenrädern entstehende positive Geschwindigkeitsdifferenz nicht zu verstärkten Abschmierproblemen führt, wohl aber den Bogenlauf erheblich begünstigt.
Die Neigung des Bogens zur Wellenbildung wird im Bereich der Ablaufzone erfindungsgemäß reduziert, da eine negative Geschwindigkeitsdifferenz, in deren Folge der Bogen ausknicken könnte, nicht mehr auftritt.
Gegen die Wirkung des im Abzugsspalt beim Abziehen des Bogens entstehenden Unterdruckes, welcher die Wellenbildung fördert, wird der Bogen unter der Wirkung der resultierenden Kraft gestrafft und annähernd tangential von der Abnahmetrommel abgezogen.
Die Neigung zur Wellenbildung kann auch durch Adhäsionskräfte zwischen Bogen und Trommeloberfläche in Abhängigkeit von der Beschichtung der Abnahmetrommel verstärkt werden. Um dem entgegenzuwirken, sind bei einer Ausführungsform der Erfindung abschmierhemmende Überzüge in Form von Super-Blue-Bespannungen vorgesehen.Surprisingly, it has been shown that the resulting during the expiration of the sprockets positive speed difference does not lead to increased Abschmierproblemen, but considerably favors the sheet travel.
The inclination of the arc for wave formation is reduced according to the invention in the region of the drainage zone, since a negative speed difference, as a result of which the bend could buckle, no longer occurs.
Against the effect of the negative pressure arising in the withdrawal nip when removing the sheet, which promotes the formation of waves, the sheet is tightened under the action of the resulting force and withdrawn approximately tangentially from the take-off drum.
The tendency to wave formation can also be enhanced by adhesion forces between the sheet and the drum surface as a function of the coating of the take-off drum. To counteract this, in one embodiment of the invention, anti-lubricating coatings in the form of super-blue clothing are provided.
Um die Bögen auch in den kurvenförmigen Bereichen ihres Weges zu führen, kann unter der Abnahmetrommel ein Luftpolsterblech angeordnet sein sowie weitere Bogenleiteinrichtungen.
Die Erfindung wird anhand des nachfolgenden Ausführungsbeispiels und der Zeichnungen näher beschrieben.In order to guide the sheets in the curved areas of their way, under the pick-up drum an air cushion sheet can be arranged as well as other sheet guiding devices.
The invention will be described with reference to the following embodiment and the drawings.
- Fig. 1Fig. 1
- einen Ausleger mit Bogentransportsystem im Bereich der Bogenabnahme vom letzten Zylinder der Druckmaschine nach dem Stand der Technik unda boom with sheet transport system in the field of sheet removal from the last cylinder of the printing press according to the prior art and
- Fig. 2Fig. 2
- den Ausleger mit Bogentransportsystem in erfindungsgemäßer Ausführung.the boom with sheet transport system according to the invention.
In
Zur Übernahme des Bogens 5 ist ein Kettenfördersystem vorgesehen.
Das Kettenfördersystem weist vordere und hintere Kettenräder auf, über die Ketten 12 und diesen zugeordnete Greiferwagen umlaufen. Die Zuordnung der Greiferwagen zu den Ketten erfolgt direkt, indem die Greiferwagen über Mitnehmerbolzen an den Ketten angelenkt sind und damit von der Kette geführt werden. Eine Ausführung mit separater Ketten- und Greiferwagenführungsbahn ist ebenfalls möglich.
Die Kettenräder sind auf einer Kettenradwelle 2 verdrehfest angeordnet, die ihrerseits angetrieben wird. Der Verlauf der Ketten ist in
Die den Ketten zugeordneten Greiferwagen erstrecken sich über die Formatbreite und nehmen die fest mit einer Greiferwelle verbundenen und zueinander beabstandeten Greiferfinger 3 auf. An den Greiferwagen sind Greiferaufschläge 4 ausgebildet. Durch Verdrehung der Greiferwelle ist der Bogen 5, 6, 7 an seiner Vorderkante zwischen Greiferfinger 3 und Greiferaufschlag 4 fixierbar. Zur Bogenführung sind unterhalb der druckmaschinenseitigen Kettenräder ein Luftpolsterblech 9 und eine sich an dieses anschließende Bogenleiteinrichtung 11 vorgesehen, die mit Blasluft beaufschlagbar sind. Ebenfalls mit Blasluft beaufschlagbar ist die Blaseinrichtung 10, die in der Nähe des Ablaufspaltes, der sich zwischen den Trommelkappen 8 und dem ablaufenden Bogen 7 ergibt, angeordnet ist. Die Trommelkappen 8 sind auf der Kettenradwelle 2 angeordnet. Alternativ dazu können auch Tragscheiben vorgesehen sein oder es kann ein entsprechender großer Durchmesser der Kettenradwelle 2 ausgebildet werden. Die Trommelkappen 8 sind zur Verminderung der Abschmiergefahr mit einem Super-Blue-Tuch überzogen.In
To take over the
The chain conveyor system has front and rear sprockets over which
The sprockets are arranged rotationally fixed on a
The gripper carriages associated with the chains extend over the format width and receive the
Die vorderen Kettenräder sind zu dem letzten Zylinder 1 der Druckmaschine benachbart angeordnet. Die umlaufenden Ketten werden von den Kettenrädern im Bereich des Umschlingungswinkels zwischen Ketten und Kettenrädern auf einer kreisförmigen Bahn um die Achse der Kettenradwelle 2 geführt. Im Bereich des Umschlingungswinkels entspricht die Bahn der Kettenglieder einem Abschnitt des Teilkreises der Kettenräder 13. Die Greiferwagen sind den Ketten zugeordnet und bewegen sich im Bereich des Umschlingungswinkels auch auf einer kreisförmigen Bahn.The front sprockets are arranged adjacent to the
Bei der aus dem Stand der Technik bekannten Form in
Demgegenüber sind bei der erfindungsgemäßen Ausführung in
Der Teilkreis der Kettenräder 13 ist größer als der Durchmesser des Druckzylinders 1.
Um dies zu ermöglichen ist vorgesehen, den Durchmesser des Druckzylinders 1 in den den Kettenrädern gegenüberliegenden Bereichen entsprechend verkleinert auszuführen. Eine andere demgegenüber bevorzugte Variante sieht vor, die Kettenräder außerhalb der Stirnflächen des Druckzylinders 1 anzuordnen.In contrast, in the embodiment according to the invention in
The pitch circle of the
In order to make this possible, it is provided that the diameter of the
Nachfolgend soll die Wirkungsweise der Erfindung beschrieben werden.
Der Druckbogen 5 wird auf dem Umfang des vorgelagerten Zylinders 1 geführt, wobei sich seine Vorderkante im Greiferschluss mit dem nicht dargestellten Greifersystem des vorgelagerten Zylinders 1 befindet. Die Bogenvorderkante wird anschließend von einem der auf Ketten umlaufenden Greifersysteme des Auslegers übernommen, wozu der Bogen zwischen Greifer 3 und Greiferaufschlag 4 fixiert wird. Die Greiferaufschläge 4 des übergebenden und des übernehmenden Greifersystems bewegen sich mit gleicher Umfangsgeschwindigkeit.The operation of the invention will be described below.
The
Nach der Übernahme der Bogenvorderkante wird der Bogen 5, 6 von dem vorgelagerten Zylinder 1 abgezogen, wobei er sich unter der Wirkung der aus dem Luftpolsterblech 9 austretenden Blasluft an die Trommelkappen anlegt. Der angelegte Bogen 6 wird im Greiferschluss auf der Abnahmetrommel geführt. Mit dem Ablaufen der Ketten und der diesen zugeordneten Greiferwagen von den Kettenrädern wird die im Greiferschluss geführte Bogenvorderkante von der Umfangsgeschwindigkeit auf die Kettengeschwindigkeit beschleunigt und damit der Bogen 7 gestrafft.After taking over the sheet leading edge of the
- 11
- vorgelagerter Zylinderupstream cylinder
- 22
- Kettenradwellesprocket
- 33
- Greifergrab
- 44
- Greiferaufschlaggripper
- 55
- Bogen auf vorgelagertem ZylinderBow on upstream cylinder
- 66
- Bogen auf AbnahmetrommelBow on pick-up drum
- 77
- Bogen nach AbnahmetrommelBow after pick-up drum
- 88th
- Trommelkappendrum shells
- 99
- LuftpolsterblechBubble sheet
- 1010
- Blaseinrichtungblower
- 1111
- Bogenleiteinrichtungsheet guiding device
- 1212
- KettenmittellinieChain center line
- 1313
- Kettenraddurchmesserchain wheel
Claims (8)
- Sheet delivery device for a sheet processing machine, particularly rotary printing machine, with chains (12) which run over chainwheels arranged on a chainwheel shaft (2) and with gripper systems (3), which are associated with the chains, with gripper stops (4), by which a sheet (5) is removable from an upstream cylinder (1) and which in the region of the angle or looping between the chains and the chainwheels are arranged on a circular track around the chain wheel shaft (2), characterised in that the radii of the arcs of the chain wheels (13) are formed to be greater than the radius of the circular track of the gripper stops (4) about the axis of the chainwheel shaft (2).
- Sheet delivery device for a sheet processing machine according to claim 1, characterised in that the diameter of the arcs of the chainwheels (13) is greater than the diameter of the upstream cylinder (1).
- Sheet delivery device for a sheet processing machine according to claim 1, characterised in that drum caps (8) or support discs are arranged on the chainwheel shaft (2).
- Sheet delivery device for a sheet processing machine according to claim 3, characterised in that the drum caps (8) or the chainwheel shaft (2) has an ink repellent covering.
- Sheet delivery device for a sheet processing machine according to claim 4, characterised in that a Super-Blue blanket is provided as ink repellent covering.
- Sheet delivery device for a sheet processing machine according to claim 1, characterised in that an air cushion plate (9) is provided below the chainwheels at the printing machine side.
- Sheet delivery device for a sheet processing machine according to claim 1, characterised in that a blowing device (10) acting in direction towards the outlet gap is provided.
- Sheet delivery device for a sheet professing machine according to claim 7, characterised in that a slop nozzle or a blast tube is provided as blowing device (10).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2001157117 DE10157117A1 (en) | 2001-11-21 | 2001-11-21 | Sheet delivery for a sheet processing machine |
DE10157117 | 2001-11-21 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1314556A2 EP1314556A2 (en) | 2003-05-28 |
EP1314556A3 EP1314556A3 (en) | 2007-02-14 |
EP1314556B1 true EP1314556B1 (en) | 2010-07-21 |
Family
ID=7706454
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20020025998 Expired - Fee Related EP1314556B1 (en) | 2001-11-21 | 2002-11-21 | Sheet delivering device for a sheet-processing machine |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP1314556B1 (en) |
DE (2) | DE10157117A1 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10358171A1 (en) | 2003-12-12 | 2005-07-07 | Heidelberger Druckmaschinen Ag | Device for conveying a sheet by a printing machine |
JP5175079B2 (en) * | 2006-11-21 | 2013-04-03 | ハイデルベルガー ドルツクマシーネン アクチエンゲゼルシヤフト | Device for transporting sheets through printing technology machines |
DE102008034763A1 (en) * | 2008-07-25 | 2010-01-28 | Heidelberger Druckmaschinen Ag | Sheet punching and embossing machine i.e. flat bed sheet punching and embossing machine, operating method for machining sheet of e.g. paper, involves passing gripper bars through curved rail lines with specific speed profile |
DE102009000220B4 (en) | 2009-01-14 | 2019-07-18 | Koenig & Bauer Ag | Boom of a sheet-processing machine with a chain conveyor system for taking over the sheets of a sheet guiding cylinder |
DE102009047344A1 (en) * | 2009-12-01 | 2011-06-09 | Koenig & Bauer Aktiengesellschaft | Sheet-fed printing press has sheet conveying system for conveying sheets with printing speed in continuous manner, another sheet conveying system for releasing sheets over display pack and sheet transfer system |
JP6198291B2 (en) * | 2012-08-03 | 2017-09-20 | 株式会社小森コーポレーション | Sheet guiding apparatus and sheet processing apparatus provided with the apparatus |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2198385A (en) * | 1938-06-07 | 1940-04-23 | Harris Seybold Potter Co | Sheet conveyer mechanism |
DE830959C (en) * | 1950-03-31 | 1952-02-07 | Faber & Schleicher A G | Device for the correct transport of sheets between two printing units |
US2940387A (en) * | 1958-08-21 | 1960-06-14 | Harris Intertype Corp | Sheet delivery means for rotary printing press |
DE2111049C3 (en) * | 1971-03-09 | 1978-03-23 | Koenig & Bauer Ag, 8700 Wuerzburg | Device for preventing the formation of curls when laying out the sheets of paper printed with offset printing machines with chain arms |
DE2308025C3 (en) * | 1973-02-19 | 1980-12-04 | Western Gear Corp., Pittsburgh, Pa. (V.St.A.) | Sheet delivery for a sheet-fed printing press |
JPS59167258A (en) * | 1983-03-14 | 1984-09-20 | Komori Printing Mach Co Ltd | Discharging paper transfer device in sheet-fed rotary press |
US4722276A (en) * | 1986-08-01 | 1988-02-02 | Tyler Jack D | Air blast for preventing contact of wet ink sheets with printing press delivery mechanisms |
DE3701103A1 (en) * | 1987-01-16 | 1988-07-28 | Roland Man Druckmasch | DEVICE FOR TRANSPORTING SHEET PRINTED IN A PRINTING MACHINE BY MEANS OF CHAIN TRANSFER SYSTEMS |
DE3701767A1 (en) * | 1987-01-22 | 1988-08-04 | Roland Man Druckmasch | CONVEYOR DEVICE FOR AN ARC ROTATION PRINTING MACHINE |
DE4111262C1 (en) * | 1991-04-08 | 1992-06-25 | Man Roland Druckmaschinen Ag, 6050 Offenbach, De |
-
2001
- 2001-11-21 DE DE2001157117 patent/DE10157117A1/en not_active Ceased
-
2002
- 2002-11-21 EP EP20020025998 patent/EP1314556B1/en not_active Expired - Fee Related
- 2002-11-21 DE DE50214545T patent/DE50214545D1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE10157117A1 (en) | 2003-05-28 |
EP1314556A2 (en) | 2003-05-28 |
DE50214545D1 (en) | 2010-09-02 |
EP1314556A3 (en) | 2007-02-14 |
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