EP1679187B1 - Sheet guiding device with electric isolating comb like border - Google Patents

Sheet guiding device with electric isolating comb like border Download PDF

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Publication number
EP1679187B1
EP1679187B1 EP05112187A EP05112187A EP1679187B1 EP 1679187 B1 EP1679187 B1 EP 1679187B1 EP 05112187 A EP05112187 A EP 05112187A EP 05112187 A EP05112187 A EP 05112187A EP 1679187 B1 EP1679187 B1 EP 1679187B1
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EP
European Patent Office
Prior art keywords
sheet
guiding device
edge
comb
printing
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.)
Active
Application number
EP05112187A
Other languages
German (de)
French (fr)
Other versions
EP1679187A2 (en
EP1679187A3 (en
Inventor
Peter Bachmeier
Andreas Detloff
Bernhard Falk
Sven Kerpe
Peter Thoma
Jürgen Ehrhard
Michael Gieser
Peter Hachmann
Sonja Wiegel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Heidelberger Druckmaschinen AG
Original Assignee
Heidelberger Druckmaschinen AG
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Publication date
Application filed by Heidelberger Druckmaschinen AG filed Critical Heidelberger Druckmaschinen AG
Publication of EP1679187A2 publication Critical patent/EP1679187A2/en
Publication of EP1679187A3 publication Critical patent/EP1679187A3/en
Application granted granted Critical
Publication of EP1679187B1 publication Critical patent/EP1679187B1/en
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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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F22/00—Means preventing smudging of machine parts or printed articles
    • 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
    • B65H29/52—Stationary guides or smoothers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/50—Auxiliary process performed during handling process
    • B65H2301/51—Modifying a characteristic of handled material
    • B65H2301/513—Modifying electric properties
    • B65H2301/5133—Removing electrostatic charge
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2401/00—Materials used for the handling apparatus or parts thereof; Properties thereof
    • B65H2401/20—Physical properties, e.g. lubricity
    • B65H2401/21—Electrical or magnetic properties, e.g. conductivity or resistance

Definitions

  • the present invention relates to a printing press, with a sheet guiding device having an edge, according to the preamble of claim 1.
  • EP 0 922 576 B1 is such a printing machine described.
  • the sheet guide of this prior art printing machine has no favorable conditions for double-sided printing of the sheet.
  • the invention is therefore an object of the invention to provide a type of printing machine corresponding to the type mentioned, in which favorable conditions for a double-sided printing of the sheet are given.
  • Said material which is an electrical insulator, makes it possible to arrange the unloading device for unloading the printing material in the region of the edge.
  • the electrostatic charges of the printing material at its entry into the area of the sheet guiding device can be at least reduced so much that the printing sheet consequently no longer tends to be electrostatically attracted to the sheet guiding device and with its beautiful and re-printing the sheet guiding device To lubricate facing Perfecting page on the sheet guiding device.
  • the sheet guiding device consists predominantly of an electrically conductive material.
  • the electrically substantially non-conductive material is polyphenylene sulfide or polyacetal.
  • the edge is comb-shaped and extends longitudinally transversely relative to a sheet travel direction of the printing material.
  • FIGS. 1 to 7 are mutually corresponding components and elements designated by the same reference numerals.
  • FIG. 1 a sheet-fed printing machine 1 with printing units 2, 3 and a boom 4 is shown.
  • the sheet-fed printing machine 1 is a perfector and comprises sheet transport cylinders 5 to 7, each with at least one gripper system 8.
  • the sheet transport cylinders 5, 6 are impression cylinders of the printing units 2, 3.
  • the sheet transport cylinder 7 is a transfer cylinder.
  • the boom 4 comprises a chain conveyor 9 with gripper systems 10.
  • the chain conveyor 9 revolves around a so-called delivery drum 11.
  • the sheet transport cylinders 5, 7 together form a transfer area 12, in which the printing material sheet 13 is transferred from the gripper system 8 of the sheet transport cylinder 5 into the gripper system 8 of the sheet transport cylinder 7.
  • the sheet transport cylinder 6 forms, together with the chain conveyor 9, a further transfer area 15, in which the printing material sheet 13 is transferred from the gripper system 8 of the sheet transport cylinder 6 into one of the gripper systems 10 of the chain conveyor 9.
  • a sheet guiding device 16 is arranged, which has a the transfer area 12 to be located end 17.
  • a sheet guiding device 18 is arranged, which has an end 19 to the transfer area 15.
  • FIG. 2 a substantially cup-shaped sheet guiding device with a comb-shaped edge 20 is shown.
  • This sheet guide can the sheet guide 16 from FIG. 1 be, with the comb-shaped edge 20 is the end 17, and may also the sheet guiding device 18 from FIG. 1 be with the comb-shaped edge 20 is the end 19.
  • the sheet guiding device has a concave guide surface 21 with blowing air nozzles 22.
  • the comb-shaped edge 20 has tines 23 and intervening gaps 24.
  • the grippers of the gripper system 8 of the sheet transport cylinder 6 or 7 go through the gaps 24 during the cylinder rotation. Close to the comb-shaped edge 20, an unloading device 25 for eliminating electrostatic charges of the printing material sheets 13 is arranged.
  • the unloading device 25 is a so-called active unloading device, whose "deelectrification" serving conductor, the ionizer, is connected to a high voltage source generating an alternating high voltage.
  • the discharge device 25 is a so-called anti-static bar or ionization bar.
  • the comb-shaped edge 20 and in particular its tines 23 consist at least partially of a substantially electrically non-conductive material, preferably a plastic such. As polyacetal (POM) or polyphenylene sulfide (PPS). The electrical insulation effect of this material ensures a high efficiency of the unloading device 25.
  • the discharged from the unloading 25 printing material sheet 13 no longer tend to smear fresh ink to the guide surface 21, since these discharged printing material 13 have no more static charges, which otherwise sticking the printing material 13 would cause on the guide surface 21.
  • the sheet guiding device FIG. 2 consists of a first part 26 and a second part 27.
  • the first part 26 is a blow box and the second part 27 is the comb-shaped edge 20.
  • the second part 27 is formed as an attachment element, which is connected to the first part 26 via screws.
  • the second part 27 is formed as a separate element, which, although rests against the first part 26, but is not connected to the latter. Instead, in this case the second part 27 is attached via a holder 28 to a blowing device 29, which in turn is attached via a further holder 30 on the machine frame 31.
  • the first part 26 consists at least largely of an electrically conductive material, preferably of a metal.
  • the guide surface 21 may be made of a steel sheet.
  • FIG. 5 the case is shown in which the sheet guiding device FIG. 2 the delivery drum 11 is assigned. It is irrelevant whether the sheet guiding device 18 according to FIG. 3 as an attachment or according to FIG. 4 is designed as a separate element.
  • a UV dryer 32 emits UV radiation 33 provided on the printing material sheet 13 for drying the printing ink, which UV radiation 33 partly reaches the interior of the skeleton-shaped delivery drum 11 and is deflected and reflected by the guide surface 21 towards the comb-shaped edge 20.
  • the comb-shaped edge 20 here consists of polyphenylene sulfide (PPS) or in a comparable manner to the UV radiation 33 resistant and at the same time electrically insulating material.
  • PPS polyphenylene sulfide
  • the UV radiation resistance of the comb-shaped edge 20 prevents its premature aging, otherwise caused by the UV radiation 33 embrittlement and the like, so that the sheet guiding device 18 despite its proximity to the UV dryer 32 is not damaged by the latter.
  • the guide surface 21 and the comb-shaped edge 20 are formed together as a single part.
  • This part consists of an electrically conductive material and is z. B. a steel sheet.
  • the part is coated in the region of the comb-shaped edge 20 with an insulating coating 36 whose electrical conductivity with respect to the electrical conductivity of the base material, for. B. the steel sheet, is significantly lower.
  • FIG. 7 shows that in the region of ionizer tips 34 of the discharge device 25 in the guide surface 21 breakthroughs 35 are introduced, through which the ionizer tips 34 act on the printing material sheet 13.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
  • Elimination Of Static Electricity (AREA)
  • Paper Feeding For Electrophotography (AREA)

Abstract

Printing press has sheet guiding device (16, 18) having an edge (20). The edge is composed partially of a material being not electrically conductive. A discharging device (25) is provided for discharging printing material sheets and located in a region of the edge. The sheet guiding device is composed predominantly of an electrically conductive material. The material which is not electrically conductive is polyphenylene sulfide, polyacetal. The edge extends longitudinally, transversely relative to a sheet running direction of printing material sheets. The edge is a comb-shaped edge (20).

Description

Die vorliegende Erfindung bezieht sich auf eine Druckmaschine, mit einer Bogenleiteinrichtung, die einen Rand aufweist, nach dem Oberbegriff des Anspruchs 1.The present invention relates to a printing press, with a sheet guiding device having an edge, according to the preamble of claim 1.

In EP 0 922 576 B1 ist eine solche Druckmaschine beschrieben. Die Bogenleiteinrichtung dieser Druckmaschine des Standes der Technik weist jedoch keine günstigen Voraussetzungen für ein beidseitiges Bedrucken der Bogen auf.In EP 0 922 576 B1 is such a printing machine described. However, the sheet guide of this prior art printing machine has no favorable conditions for double-sided printing of the sheet.

Deshalb liegt der Erfindung die Aufgabe zugrunde, eine der eingangs genannten Gattung entsprechende Druckmaschine zu schaffen, bei welcher günstige Voraussetzungen für ein beidseitiges Bedrucken der Bogen gegeben sind.The invention is therefore an object of the invention to provide a type of printing machine corresponding to the type mentioned, in which favorable conditions for a double-sided printing of the sheet are given.

Diese Aufgabe wird durch eine Druckmaschine mit den Merkmalen des Anspruchs 1 gelöst.This object is achieved by a printing machine with the features of claim 1.

Besagtes Material, welches ein elektrischer Isolator ist, ermöglicht es, im Bereich des Randes die Entladeeinrichtung zum Entladen der Bedruckstoffbogen anzuordnen. Mittels einer solchen Entladeeinrichtung lassen sich die elektrostatischen Aufladungen des Bedruckstoffbogens bei dessen Einlauf in den Bereich der Bogenleiteinrichtung zumindest so stark reduzieren, dass der Bedruckstoffbogen infolgedessen nicht mehr dazu neigt, von der Bogenleiteinrichtung elektrostatisch angezogen zu werden und mit seiner beim Schön- und Wiederdruck der Bogenleiteinrichtung zugewandten Schöndruckseite an der Bogenleiteinrichtung abzuschmieren.Said material, which is an electrical insulator, makes it possible to arrange the unloading device for unloading the printing material in the region of the edge. By means of such an unloading device, the electrostatic charges of the printing material at its entry into the area of the sheet guiding device can be at least reduced so much that the printing sheet consequently no longer tends to be electrostatically attracted to the sheet guiding device and with its beautiful and re-printing the sheet guiding device To lubricate facing Perfecting page on the sheet guiding device.

Bei einer weiteren Weiterbildung besteht die Bogenleiteinrichtung überwiegend aus einem elektrisch leitfähigen Material. Bei weiteren Weiterbildungen ist das elektrisch im Wesentlichen nicht leitfähige Material Polyphenylensulfid oder Polyacetal.In a further development, the sheet guiding device consists predominantly of an electrically conductive material. In further developments, the electrically substantially non-conductive material is polyphenylene sulfide or polyacetal.

Bei einer weiteren Weiterbildung ist der Rand kammförmig und längserstreckt er sich quer relativ zu einer Bogenlaufrichtung der Bedruckstoffbogen.In a further development, the edge is comb-shaped and extends longitudinally transversely relative to a sheet travel direction of the printing material.

Weitere Weiterbildungen ergeben sich aus der nachfolgenden Beschreibung bevorzugter Ausführungsbeispiele und der dazugehörigen Zeichnung.Further developments will become apparent from the following description of preferred embodiments and the accompanying drawings.

In dieser zeigen:

Figur 1
eine Schön- und Wiederdruck-Offsetdruckmaschine mit Bogenleiteinrichtungen,
Figur 2
eine dreidimensionale Darstellung einer der Bogenleiteinrichtungen aus Figur 1,
Figur 3
die Bogenleiteinrichtung aus Figur 2 in einer Seitenansicht,
Figur 4
eine Modifikation der Bogenleiteinrichtung aus Figur 3, mit gegenüber letzterer veränderter Befestigung eines kammförmigen Randelementes der Bogenleiteinrichtung,
Figur 5
die Bogenleiteinrichtung aus Figur 4 zusammen mit einem in der unmittelbaren Umgebung angeordneten UV-Trockner,
Figur 6
ein Ausführungsbeispiel, bei dem eine der Bogenleiteinrichtungen aus Figur 1 ein mit einem kammförmigen Rand versehenes Düsenblech aufweist, und
Figur 7
eine Detaildarstellung des kammförmigen Randes der Bogenleiteinrichtung aus Figur 6 und einer in unmittelbarer Nähe des kammförmigen Randes angeordneten Entladeeinrichtung.
In this show:
FIG. 1
a perfecting and reprinting offset printing machine with sheet guiding devices,
FIG. 2
a three-dimensional representation of one of the sheet guiding devices FIG. 1 .
FIG. 3
the sheet guiding device FIG. 2 in a side view,
FIG. 4
a modification of the sheet guiding device FIG. 3 , with respect to the latter changed attachment of a comb-shaped edge element of the sheet guiding device,
FIG. 5
the sheet guiding device FIG. 4 together with a UV dryer located in the immediate vicinity,
FIG. 6
an embodiment in which one of the sheet guiding devices FIG. 1 a nozzle plate provided with a comb-shaped edge, and
FIG. 7
a detailed representation of the comb-shaped edge of the sheet guiding device FIG. 6 and an unloading device arranged in the immediate vicinity of the comb-shaped edge.

In den Figuren 1 bis 7 sind einander entsprechende Bauteile und Elemente mit den gleichen Bezugszeichen bezeichnet.In the FIGS. 1 to 7 are mutually corresponding components and elements designated by the same reference numerals.

In Figur 1 ist eine Bogendruckmaschine 1 mit Druckwerken 2, 3 und einem Ausleger 4 dargestellt. Die Bogendruckmaschine 1 ist ein Perfektor und umfasst Bogentransportzylinder 5 bis 7 mit jeweils mindestens einem Greifersystem 8. Die Bogentransportzylinder 5, 6 sind Gegendruckzylinder der Druckwerke 2, 3. Der Bogentransportzylinder 7 ist ein Übergabezylinder. Der Ausleger 4 umfasst einen Kettenförderer 9 mit Greifersystemen 10. Der Kettenförderer 9 läuft um eine sogenannte Auslagetrommel 11 um. Die Bogentransportzylinder 5, 7 bilden zusammen einen Übergabebereich 12, in welchem der Bedruckstoffbogen 13 aus dem Greifersystem 8 des Bogentransportzylinders 5 in das Greifersystem 8 des Bogentransportzylinders 7 übergeben wird. Der Bogentransportzylinder 6 bildet zusammen mit dem Kettenförderer 9 einen weiteren Übergabebereich 15, in welchem der Bedruckstoffbogen 13 aus dem Greifersystem 8 des Bogentransportzylinders 6 in eines der Greifersysteme 10 des Kettenförderers 9 übergeben wird. Unterhalb des Bogentransportzylinders 7 ist eine Bogenleiteinrichtung 16 angeordnet, die ein dem Übergabebereich 12 zu gelegenes Ende 17 hat. Unterhalb der Auslagetrommel 11 ist eine Bogenleiteinrichtung 18 angeordnet, die ein dem Übergabebereich 15 zu gelegenes Ende 19 hat.In FIG. 1 a sheet-fed printing machine 1 with printing units 2, 3 and a boom 4 is shown. The sheet-fed printing machine 1 is a perfector and comprises sheet transport cylinders 5 to 7, each with at least one gripper system 8. The sheet transport cylinders 5, 6 are impression cylinders of the printing units 2, 3. The sheet transport cylinder 7 is a transfer cylinder. The boom 4 comprises a chain conveyor 9 with gripper systems 10. The chain conveyor 9 revolves around a so-called delivery drum 11. The sheet transport cylinders 5, 7 together form a transfer area 12, in which the printing material sheet 13 is transferred from the gripper system 8 of the sheet transport cylinder 5 into the gripper system 8 of the sheet transport cylinder 7. The sheet transport cylinder 6 forms, together with the chain conveyor 9, a further transfer area 15, in which the printing material sheet 13 is transferred from the gripper system 8 of the sheet transport cylinder 6 into one of the gripper systems 10 of the chain conveyor 9. Below the sheet transport cylinder 7, a sheet guiding device 16 is arranged, which has a the transfer area 12 to be located end 17. Below the delivery drum 11, a sheet guiding device 18 is arranged, which has an end 19 to the transfer area 15.

In Figur 2 ist eine im Wesentlichen schalenförmige Bogenleiteinrichtung mit einem kammförmigen Rand 20 dargestellt. Diese Bogenleiteinrichtung kann die Bogenleiteinrichtung 16 aus Figur 1 sein, wobei der kammförmige Rand 20 das Ende 17 ist, und kann auch die Bogenleiteinrichtung 18 aus Figur 1 sein, wobei der kammförmige Rand 20 das Ende 19 ist. Die Bogenleiteinrichtung hat eine konkave Leitfläche 21 mit blasenden Luftdüsen 22. Der kammförmige Rand 20 weist Zinken 23 und dazwischen liegende Lücken 24 auf. Die Greifer des Greifersystems 8 des Bogentransportzylinders 6 oder 7 durchlaufen während der Zylinderrotation die Lücken 24. Dicht bei dem kammförmigen Rand 20 ist eine Entladeeinrichtung 25 zum Beseitigen elektrostatischer Aufladungen der Bedruckstoffbogen 13 angeordnet. Die Entladeeinrichtung 25 ist eine sogenannte aktive Entladeeinrichtung, deren der "Entelektrisierung" dienender Leiter, der Ionisator, an eine eine Wechselhochspannung erzeugende Hochspannungsquelle angeschlossen ist. Die Entladeeinrichtung 25 ist ein sogenannter Ionensprühstab oder Ionisationsstab. Der kammförmige Rand 20 und insbesondere dessen Zinken 23 bestehen zumindest teilweise aus einem im Wesentlichen elektrisch nicht leitfähigen Material, vorzugsweise einem Kunststoff wie z. B. Polyacetal (POM) oder Polyphenylensulfid (PPS). Die elektrische Isolationswirkung dieses Materials gewährleistet einen hohen Wirkungsgrad der Entladeeinrichtung 25. Die von der Entladeeinrichtung 25 entladenen Bedruckstoffbogen 13 neigen nicht mehr zum Abschmieren frischer Druckfarbe an die Leitfläche 21, da diese entladenen Bedruckstoffbogen 13 keine statischen Aufladungen mehr aufweisen, welche ansonsten ein Haften der Bedruckstoffbogen 13 an der Leitfläche 21 verursachen würden.In FIG. 2 a substantially cup-shaped sheet guiding device with a comb-shaped edge 20 is shown. This sheet guide can the sheet guide 16 from FIG. 1 be, with the comb-shaped edge 20 is the end 17, and may also the sheet guiding device 18 from FIG. 1 be with the comb-shaped edge 20 is the end 19. The sheet guiding device has a concave guide surface 21 with blowing air nozzles 22. The comb-shaped edge 20 has tines 23 and intervening gaps 24. The grippers of the gripper system 8 of the sheet transport cylinder 6 or 7 go through the gaps 24 during the cylinder rotation. Close to the comb-shaped edge 20, an unloading device 25 for eliminating electrostatic charges of the printing material sheets 13 is arranged. The unloading device 25 is a so-called active unloading device, whose "deelectrification" serving conductor, the ionizer, is connected to a high voltage source generating an alternating high voltage. The discharge device 25 is a so-called anti-static bar or ionization bar. The comb-shaped edge 20 and in particular its tines 23 consist at least partially of a substantially electrically non-conductive material, preferably a plastic such. As polyacetal (POM) or polyphenylene sulfide (PPS). The electrical insulation effect of this material ensures a high efficiency of the unloading device 25. The discharged from the unloading 25 printing material sheet 13 no longer tend to smear fresh ink to the guide surface 21, since these discharged printing material 13 have no more static charges, which otherwise sticking the printing material 13 would cause on the guide surface 21.

In den Figuren 3 und 4 sind Ausführungsbeispiele dargestellt, bei denen die Bogenleiteinrichtung aus Figur 2 aus einem ersten Teil 26 und einem zweiten Teil 27 besteht. Das erste Teil 26 ist ein Blaskasten und das zweite Teil 27 ist der kammförmige Rand 20.In the Figures 3 and 4 Embodiments are shown in which the sheet guiding device FIG. 2 consists of a first part 26 and a second part 27. The first part 26 is a blow box and the second part 27 is the comb-shaped edge 20.

Gemäß Figur 3 ist das zweite Teil 27 als ein Aufsatzelement ausgebildet, das mit dem ersten Teil 26 über Schrauben verbunden ist.According to FIG. 3 the second part 27 is formed as an attachment element, which is connected to the first part 26 via screws.

Gemäß Figur 4 ist das zweite Teil 27 als ein Separatelement ausgebildet, welches zwar an dem ersten Teil 26 anliegt, jedoch mit letzterem nicht verbunden ist. Stattdessen ist hierbei das zweite Teil 27 über einen Halter 28 an einer Blaseinrichtung 29 befestigt, welche wiederum über einen weiteren Halter 30 am Maschinengestell 31 befestigt ist.According to FIG. 4 the second part 27 is formed as a separate element, which, although rests against the first part 26, but is not connected to the latter. Instead, in this case the second part 27 is attached via a holder 28 to a blowing device 29, which in turn is attached via a further holder 30 on the machine frame 31.

Sowohl bei dem in Figur 3 gezeigten Ausführungsbeispiel als auch in dem in Figur 4 gezeigten besteht das den kammförmigen Rand 20 bildende Element massiv aus dem elektrisch nicht leitfähigen Material, z. B. besagtem POM oder PPS. Das erste Teil 26 besteht aber zumindest größtenteils aus einem elektrisch leitfähigen Material, vorzugsweise aus einem Metall. Beispielsweise kann die Leitfläche 21 aus einem Stahlblech gefertigt sein.Both at the in FIG. 3 shown embodiment and in the in FIG. 4 shown consists of the comb-shaped edge 20 forming element solid from the electrically non-conductive material, eg. B. said POM or PPS. However, the first part 26 consists at least largely of an electrically conductive material, preferably of a metal. For example, the guide surface 21 may be made of a steel sheet.

In Figur 5 ist der Fall dargestellt, in welchem die Bogenleiteinrichtung aus Figur 2 der Auslagetrommel 11 beigeordnet ist. Dabei ist es unerheblich, ob die Bogenleiteinrichtung 18 gemäß Figur 3 als Aufsatzelement oder gemäß Figur 4 als Separatelement ausgebildet ist. Ein UV-Trockner 32 strahlt zum Trocknen der Druckfarbe auf dem Bedruckstoffbogen 13 vorgesehene UV-Strahlung 33 ab, welche teilweise in das Innere der skelettartig ausgebildeten Auslagetrommel 11 gelangt und von der Leitfläche 21 zum kammförmigen Rand 20 hin umgelenkt und reflektiert wird. Der kammförmige Rand 20 besteht hierbei aus Polyphenylensulfid (PPS) oder einem in vergleichbarer Weise gegen die UV-Strahlung 33 beständigen und zugleich elektrisch isolierenden Material. Die UV-Strahlungsresistenz des kammförmigen Randes 20 verhindert dessen vorzeitige Alterung, ansonsten von der UV-Strahlung 33 verursachte Versprödung und dergleichen, so dass die Bogenleiteinrichtung 18 trotz ihrer Nähe zum UV-Trockner 32 von letzterem nicht beschädigt wird.In FIG. 5 the case is shown in which the sheet guiding device FIG. 2 the delivery drum 11 is assigned. It is irrelevant whether the sheet guiding device 18 according to FIG. 3 as an attachment or according to FIG. 4 is designed as a separate element. A UV dryer 32 emits UV radiation 33 provided on the printing material sheet 13 for drying the printing ink, which UV radiation 33 partly reaches the interior of the skeleton-shaped delivery drum 11 and is deflected and reflected by the guide surface 21 towards the comb-shaped edge 20. The comb-shaped edge 20 here consists of polyphenylene sulfide (PPS) or in a comparable manner to the UV radiation 33 resistant and at the same time electrically insulating material. The UV radiation resistance of the comb-shaped edge 20 prevents its premature aging, otherwise caused by the UV radiation 33 embrittlement and the like, so that the sheet guiding device 18 despite its proximity to the UV dryer 32 is not damaged by the latter.

Bei dem in den Figuren 6 und 7 dargestellten Ausführungsbeispiel sind die Leitfläche 21 und der kammförmige Rand 20 zusammen als ein einziges Teil ausgebildet. Dieses Teil besteht aus einem elektrisch leitfähigen Material und ist z. B. ein Stahlblech. Das Teil ist im Bereich des kammförmigen Randes 20 mit einer Isolierbeschichtung 36 beschichtet, deren elektrische Leitfähigkeit gegenüber der elektrischen Leitfähigkeit des Basismaterials, z. B. des Stahlbleches, deutlich geringer ist. Figur 7 zeigt, dass im Bereich von Ionisatorspitzen 34 der Entladeeinrichtung 25 in die Leitfläche 21 Durchbrüche 35 eingebracht sind, durch welche hindurch die Ionisatorspitzen 34 auf den Bedruckstoffbogen 13 einwirken.In the in the FIGS. 6 and 7 illustrated embodiment, the guide surface 21 and the comb-shaped edge 20 are formed together as a single part. This part consists of an electrically conductive material and is z. B. a steel sheet. The part is coated in the region of the comb-shaped edge 20 with an insulating coating 36 whose electrical conductivity with respect to the electrical conductivity of the base material, for. B. the steel sheet, is significantly lower. FIG. 7 shows that in the region of ionizer tips 34 of the discharge device 25 in the guide surface 21 breakthroughs 35 are introduced, through which the ionizer tips 34 act on the printing material sheet 13.

Zeichnerisch nicht dargestellt sind Modifikationen der in den Figuren 2 bis 4 dargestellten Ausführungsbeispielen, bei welchen Modifikation das den kammförmigen Rand 20 bildende Aufsatz- bzw. Nachbarelement aus einem elektrisch leitfähigen Material, z. B. Stahl, besteht und dieses Material ähnlich wie bei dem in den Figuren 6 und 7 dargestellten Ausführungsbeispiel mit einer elektrischen Isolierbeschichtung versehen ist.Zeichnerisch not shown are modifications of the in the FIGS. 2 to 4 illustrated embodiments, in which modification the comb-shaped edge 20 forming essay or neighboring element of an electrically conductive material, for. As steel, and this material similar to that in the FIGS. 6 and 7 illustrated embodiment is provided with an electrical insulation coating.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
BogendruckmaschineSheetfed
22
Druckwerkprinting unit
33
Druckwerkprinting unit
44
Auslegerboom
55
BogentransportzylinderSheet transfer cylinders
66
BogentransportzylinderSheet transfer cylinders
77
BogentransportzylinderSheet transfer cylinders
88th
Greifersystemgripper system
99
Kettenfördererchain conveyors
1010
Greifersystemgripper system
1111
Auslagetrommeldelivery drum
1212
ÜbergabebereichTransfer area
1313
Bedruckstoffbogenprinting material
1414
./../.
1515
ÜbergabebereichTransfer area
1616
Bogenleiteinrichtungsheet guiding device
1717
EndeThe End
1818
Bogenleiteinrichtungsheet guiding device
1919
EndeThe End
2020
kammförmiger Randcomb-shaped edge
2121
Leitflächebaffle
2222
Luftdüseair nozzle
2323
Zinkenprong
2424
Lückegap
2525
Entladeeinrichtungunloading
2626
erstes Teilfirst part
2727
zweites Teilsecond part
2828
Halterholder
2929
Blaseinrichtungblower
3030
Halterholder
3131
Maschinengestellmachine frame
3232
UV-TrocknerUV dryer
3333
UV-StrahlungUV radiation
3434
IonisatorspitzeIonisatorspitze
3535
Durchbruchbreakthrough
3636
Isolierbeschichtunginsulating

Claims (6)

  1. Printing press (1) having a sheet-guiding device (16, 18) with an edge (20) at least partly consisting of a material that is essentially electrically non-conductive,
    characterized by
    the fact that in the region of the edge (20), a discharge device (25) is arranged to discharge the sheets (13) of printing material.
  2. Printing press according to Claim 1,
    characterized by
    the fact that the sheet-guiding device (16, 18) predominantly consists of an electrically conductive material.
  3. Printing press according to Claim 1 or 2,
    characterized by
    the fact that the material that is essentially electrically non-conductive is polyphenylene sulfide.
  4. Printing press according to one of Claims 1 or 2,
    characterized by
    the fact that the material that is essentially electrically non-conductive is polyacetal.
  5. Printing press according to one of Claims 1 to 4,
    characterized by
    the fact that transversely, the edge (20) extends in a longitudinal direction relative to the direction of travel of the sheets (13) of printing material.
  6. Printing press according to one of Claims 1 to 5,
    characterized by
    the fact that the edge (20) is a comb-shaped edge (20).
EP05112187A 2005-01-07 2005-12-15 Sheet guiding device with electric isolating comb like border Active EP1679187B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005000892 2005-01-07
DE102005032601A DE102005032601A1 (en) 2005-01-07 2005-07-13 press

Publications (3)

Publication Number Publication Date
EP1679187A2 EP1679187A2 (en) 2006-07-12
EP1679187A3 EP1679187A3 (en) 2010-03-03
EP1679187B1 true EP1679187B1 (en) 2011-05-25

Family

ID=35907019

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05112187A Active EP1679187B1 (en) 2005-01-07 2005-12-15 Sheet guiding device with electric isolating comb like border

Country Status (6)

Country Link
US (1) US20060150841A1 (en)
EP (1) EP1679187B1 (en)
JP (1) JP4833667B2 (en)
CN (1) CN1799839B (en)
AT (1) ATE510693T1 (en)
DE (1) DE102005032601A1 (en)

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DE102019118569A1 (en) * 2019-07-09 2021-01-14 Koenig & Bauer Ag Sheet processing machine and method for conveying sheets
WO2021004696A1 (en) 2019-07-09 2021-01-14 Koenig & Bauer Ag Sheet-processing machine with a turning device, method for conveying sheets, and use of sheet directing elements which contain deionization devices
DE102019118565A1 (en) * 2019-07-09 2021-01-14 Koenig & Bauer Ag Sheet processing machine and method for conveying sheets
DE102019118566A1 (en) * 2019-07-09 2021-01-14 Koenig & Bauer Ag Sheet processing machine and method for conveying sheets
DE102019118571A1 (en) * 2019-07-09 2021-01-14 Koenig & Bauer Ag Sheet processing machine and method for conveying sheets

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Also Published As

Publication number Publication date
JP4833667B2 (en) 2011-12-07
EP1679187A2 (en) 2006-07-12
CN1799839A (en) 2006-07-12
CN1799839B (en) 2012-03-07
EP1679187A3 (en) 2010-03-03
ATE510693T1 (en) 2011-06-15
JP2006188065A (en) 2006-07-20
DE102005032601A1 (en) 2006-07-20
US20060150841A1 (en) 2006-07-13

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